Abrégé

A control method for a front-drive motor (10) of a vehicle (100), a motor controller (30), and a power assembly (130), the front-drive motor (10) being used to connect to wheels (120) of the vehicle (100) by means of a transmission device. The control method comprises: in response to a torque value of the front-drive motor (10) indicated by a torque request outputted by an accelerator pedal (410) being greater than first torque, regulating the output driving torque of the front-drive motor (10) on the basis of the torque request outputted by the accelerator pedal (410); and in response to the comparison between the vibration intensity of the transmission device when the vehicle (100) runs in a gliding state and a preset vibration intensity, controlling the front-drive motor (10) to rotate along with the wheels (120) or output gear meshing torque, the moment direction of the driving torque being opposite to the moment direction of the gear meshing torque. The method can control the front-drive motor (10) to output the gear meshing torque, so as to enable an output shaft gear of the front-drive motor (10) and a gear of the transmission device to be tightly meshed, thereby reducing gear collision sounds of front-drive asynchronous power assemblies at small torque, and improving the NVH performance of the vehicle (100).

Classes IPC  ?

• B60L 15/20 - Procédés, circuits ou dispositifs pour commander la propulsion des véhicules à traction électrique, p. ex. commande de la vitesse des moteurs de traction en vue de réaliser des performances désiréesAdaptation sur les véhicules à traction électrique de l'installation de commande à distance à partir d'un endroit fixe, de différents endroits du véhicule ou de différents véhicules d'un même train pour la commande du véhicule ou de son moteur en vue de réaliser des performances désirées, p. ex. vitesse, couple, variation programmée de la vitesse
• B60W 30/20 - Réduction des vibrations dans la chaîne cinématique

Abrégé

Provided are a power assembly (30) having a differential gear protection function, a control method for the power assembly (30), and an electric vehicle (10), relating to the field of new energy vehicles, and applicable to pure electric vehicles and hybrid vehicles. The power assembly (30) comprises a driving motor (60), a motor controller (50) and a differential gear (70), wherein the driving motor (60) is transmittingly connected to the differential gear (70); the differential gear (70) is transmittingly connected to two wheels (12) of an electric vehicle respectively, and the two wheels (12) are two front wheels or two rear wheels; and the motor controller (50) is configured to control a torque value output by the driving motor (60) to be less than or equal to a torque limit value, the torque limit value being reduced along with the increase of a wheel speed difference between the two wheels. The motor controller (50) protects the differential gear (70) according to the hardware capability and working boundary of the differential gear (70), thereby improving the reliability of the power assembly (30) and the safety of the entire vehicle.

Classes IPC  ?

• B60L 15/20 - Procédés, circuits ou dispositifs pour commander la propulsion des véhicules à traction électrique, p. ex. commande de la vitesse des moteurs de traction en vue de réaliser des performances désiréesAdaptation sur les véhicules à traction électrique de l'installation de commande à distance à partir d'un endroit fixe, de différents endroits du véhicule ou de différents véhicules d'un même train pour la commande du véhicule ou de son moteur en vue de réaliser des performances désirées, p. ex. vitesse, couple, variation programmée de la vitesse
• B60W 30/18 - Propulsion du véhicule

Abrégé

The present application provides a battery, a battery pack and an energy storage system. The battery comprises a casing, a pole core, a Mylar film, an insulating porous film and a bottom supporting sheet, wherein the pole core, the Mylar film, the insulating porous film and the bottom supporting sheet are all accommodated in the casing, the bottom surface of the pole core, the Mylar film, the insulating porous film and the bottom supporting sheet are sequentially stacked, and the insulating porous film located on the bottom surface comprises a plurality of through holes. The through holes of the insulating porous film can reduce the circulation of dust falling off from the pole core between the pole core and the casing, thus reducing the possibility of micro short circuit formed between the bottom surface of the pole core and the casing.

Classes IPC  ?

• H01M 50/593 - Éléments d’espacementPlaques d’isolation

Abrégé

An energy storage apparatus with an explosion venting function, and an energy storage system. The energy storage apparatus comprises a case, a plurality of battery modules, explosion venting members and door panels, wherein the explosion venting members and the door panels are used for passive pressure relief of an accommodating cavity and being opened under different pressures of the accommodating cavity. An explosion venting form of the energy storage apparatus is a two-stage explosion venting form; when the explosion overpressure in the energy storage apparatus is lower than a set value, explosion venting is performed by means of the explosion venting members without opening the door panels, and the overall structure remains intact; and when internal overpressure caused by explosion exceeds another set value, explosion venting windows and the door panels are simultaneously opened for explosion venting, and the main structure remains intact, such that layered and staged explosion venting can be realized, thereby preventing the case from breaking apart.

Classes IPC  ?

• H01M 50/317 - Aménagements refermables
• H01M 10/42 - Procédés ou dispositions pour assurer le fonctionnement ou l'entretien des éléments secondaires ou des demi-éléments secondaires
• H01M 50/244 - Boîtiers secondairesBâtisDispositifs de suspensionDispositifs de manutentionSupports caractérisés par leur procédé de montage
• H01M 50/204 - Bâtis, modules ou blocs de multiples batteries ou de multiples cellules

Abrégé

Embodiments of the present application provide a stator lamination having cooling holes, a motor, a powertrain, and an electric vehicle. The stator lamination comprises a plurality of first cooling holes and a plurality of second cooling holes. The plurality of first cooling holes are spaced apart in the circumferential direction of the stator lamination, and the plurality of second cooling holes are spaced apart in the circumferential direction of the stator lamination. In two adjacent first cooling holes in the circumferential direction of the stator lamination, the distance between one first cooling hole and the center of the stator lamination is greater than the distance between the other first cooling hole and the center of the stator lamination. In two adjacent second cooling holes in the circumferential direction of the stator lamination, the distance between one second cooling hole and the center of the stator lamination is greater than the distance between the other second cooling hole and the center of the stator lamination. The first cooling holes and the second cooling holes can be alternatives to each other, ensuring that the angle of spraying to the end of the motor covers the circumferential range of the motor, so as to satisfy the requirement for spraying in the circumferential direction of the motor to dissipate heat from an end winding.

Classes IPC  ?

• H02K 1/16 - Noyaux statoriques à encoches pour enroulements
• H02K 1/20 - Parties fixes du circuit magnétique avec des canaux ou des conduits pour l'écoulement d'un agent de refroidissement

Abrégé

A battery (10), a battery pack (100), and an energy storage system. The battery (10) comprises a casing (11) and two battery cells (31, 41) located in the casing (11). A partition plate (21) is provided between the two battery cells (31, 41), a peripheral side of the partition plate (21) being connected to the casing (11) so as to prevent an electrolyte in the casing (11) from flowing between the two battery cells (31, 41), thereby isolating the battery cells (31, 41), and preventing the excessively high voltage of multiple battery cells directly connected in series from decomposing the electrolyte. The two battery cells (31, 41) are each provided with a positive tab (311, 411) and a negative tab (312, 412), the arrangement direction of the two battery cells (31, 41) being consistent with the arrangement direction of the positive tab (311, 411) and the negative tab (312, 412) of any battery cell (31, 41), wherein the positive tab (311, 411) of one battery cell (31, 41) and the negative tab (312, 412) of the other battery cell (31, 41) are arranged opposite to each other in the arrangement direction of the two battery cell (31, 41) and are electrically connected to each other by means of the partition plate (21). Thus, the two battery cells (31, 41) are connected in series by means of the partition plate (21). Because the tabs of different polarities of the two battery cells (31, 41) are connected in series by means of the partition plate (21), there is no need to provide a post (51, 61) and a cover plate assembly (81) at the two tabs connected in series, thereby reducing the number of used parts.

Classes IPC  ?

• H01M 50/502 - Interconnecteurs pour connecter les bornes des batteries adjacentesInterconnecteurs pour connecter les cellules en dehors d'un boîtier de batterie
• H01M 50/531 - Connexions d’électrodes dans un boîtier de batterie
• H01M 50/289 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports caractérisés par des éléments d’espacement ou des moyens de positionnement dans les racks, les cadres ou les blocs
• H01M 50/244 - Boîtiers secondairesBâtisDispositifs de suspensionDispositifs de manutentionSupports caractérisés par leur procédé de montage
• H01M 50/249 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports spécialement adaptés aux aéronefs ou aux véhicules, p. ex. aux automobiles ou aux trains

Abrégé

The disclosure relates to a wireless power transmitter device (501) for transmitting power wirelessly to a receiver device (504) having a receiver coil (405). The wireless power transmitter device 501 comprises: at least one power source (502); and a three-dimensional coil array (400) electrically connected to the at least one power source (502). The three- dimensional coil array (400) comprises: a first coil (400a) arranged along a first area, the first coil (400a) comprising a first number of conductive turns; and a second coil (400b) arranged along a second area, the second coil (400b) comprising a second number of conductive turns. The first coil (400a) and the second coil (400b) are configured to generate magnetic fields which are represented by magnetic field vectors (404a, 404b) that point in a same direction. The first coil (400a) and the second coil (400b) are arranged at a distance from one another, such that the receiver coil (405) can be placed between the first area and the second area for receiving power wirelessly from the two coils (400a, 400b).

Classes IPC  ?

• H02J 50/00 - Circuits ou systèmes pour l'alimentation ou la distribution sans fil d'énergie électrique
• H02J 50/10 - Circuits ou systèmes pour l'alimentation ou la distribution sans fil d'énergie électrique utilisant un couplage inductif

Abrégé

A reconfigurable bidirectional series-resonant DC-DC power converter apparatus has a LC resonant tank split on either side of a transformer that prevents DC bias introduced by the input switching circuit and the full bridge output switching circuit from effecting the transformer. The converter operates the full bridge switching circuit to reconfigure the converter topology. When the converter gain is less than a nominal gain, the converter is reconfigured as a half bridge/full bridge topology. When the converter gain is greater than or equal to the nominal gain and the output voltage is less than a maximum voltage, the converter is reconfigured as a half bridge/semi-full bridge topology. When the output voltage is greater than or equal to the maximum voltage the converter is reconfigured as a half bridge/half bridge topology. Converter reconfiguration allows an ultra-wide output voltage rage to be handled efficiently without increased component count.

Classes IPC  ?

• H02M 3/00 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu
• H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
• H02M 3/337 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs en configuration push-pull

Abrégé

The present application provides a rotary isolation switch and a power converter. The rotary isolation switch comprises a driving mechanism and a plurality of switch units which are sequentially arranged in a first direction. Each switch unit comprises a moving contact assembly, and the driving mechanism drives the moving contact assembly to rotate. The moving contact assembly adjacent to the driving mechanism is a first moving contact assembly, the driving mechanism is connected to the first moving contact assembly and is used for applying a rotating force to the first moving contact assembly, and two adjacent moving contact assemblies are inserted into each other. The switch unit farthest from the driving mechanism is a second switch unit. The second switch unit comprises an isolation cover plate, wherein the isolation cover plate comprises an observation hole and a reference mark, so that the rotation angle of a second moving contact assembly can be visualized, and the connection status of the rotary isolation switch can be determined on the basis of the position of the second moving contact assembly. The reference mark is located on the peripheral side of the observation hole, a pointer is arranged on one side of the second moving contact assembly facing the isolation cover plate, and the second moving contact assembly is rotated to achieve alignment between the pointer and the reference mark.

Classes IPC  ?

• H01H 31/02 - Interrupteurs à coupure dans l'air pour haute tension sans moyen d'extinction ou de prévention des arcs Détails
• H02M 1/00 - Détails d'appareils pour transformation

Abrégé

A battery pack (10) and an energy storage system, the battery pack (10) comprising a circuit board assembly (12), a cover plate (13), and a plurality of battery cells (100). Each battery cell (100) comprises, on one surface, an explosion-proof valve (103). The plurality of battery cells (100) are arranged in parallel, and said surfaces of the battery cells (100) have the same orientation. The circuit board assembly (12) is arranged on the side of the plurality of battery cells (100) close to said surfaces. The circuit board assembly (12) comprises a plurality of first through holes (120), and the plurality of first through holes (120) are sealingly connected in one-to-one correspondence with the plurality of explosion-proof valves (103). The cover plate (13) is arranged on the side of the circuit board assembly (12) facing away from the battery cells (100). The cover plate (13) comprises a plurality of explosion-proof windows (130), and the plurality of explosion-proof windows (130) are sealingly connected in one-to-one correspondence with the plurality of first through holes (120). In the battery pack (10), the first through holes (120) and the explosion-proof windows (130) can form pressure relief channels, and erupted substances in the battery cells (100) can flow through the first through holes (120) to be discharged out of the explosion-proof windows (130) so as to prevent the erupted substances from spreading within the battery pack (10), thereby improving the safety of the battery pack (10).

Classes IPC  ?

• H01M 50/30 - Aménagements pour faciliter l’échappement des gaz

Abrégé

A powertrain (10), a distributed powertrain (10a), and an electric vehicle (1), the powertrain (10) comprising an electric motor (300), a speed reducer (200) and a speed reducer end plate (100), wherein a speed reducer end plate (210) of the speed reducer (200) is configured to be in transmission connection with an electric motor shaft (310) of the electric motor (300); and the speed reducer end plate (100) comprises a recess (120) and a protrusion (110) which are formed by integral die-casting, with the recess (120) being configured to accommodate a speed reducer bearing (220), and an inner ring of the speed reducer bearing (220) being configured to be fixedly connected to an outer peripheral surface of the speed reducer end plate (210). The protrusion (110) extends towards the electric motor shaft (310) from a bottom (211) of the recess (120), and the protrusion (110) comprises a cooling liquid channel (111). The speed reducer end plate (210) comprises a shaft cavity (211), the speed reducer end plate (210) is penetrated along the electric motor shaft (310) towards the shaft cavity (211), the shaft cavity (211) of the speed reducer end plate (210) is configured to accommodate one end of the electric motor shaft (310) and one end of the protrusion (110), and an internal flow channel at one end of the electric motor shaft (310) is configured to be in communication with the cooling liquid channel (111) of the protrusion (110). A speed reducer end plate (210) has multiple functions and can be reused, such that the powertrain (10) has a compact structure; and the protrusion (110) and the recess (120) are integrally die-cast, so that the structural reliability of the powertrain (10) is improved, and the integrally die-cast protrusion (110) is also beneficial for reducing the flow resistance of cooling oil and enhancing the cooling and lubricating effects.

Classes IPC  ?

• B60K 11/02 - Dispositions des ensembles de propulsion relatives au refroidissement avec liquide de refroidissement
• B60K 1/00 - Agencement ou montage des ensembles de propulsion électriques
• F16H 57/04 - Caractéristiques relatives à la lubrification ou au refroidissement
• H02K 9/00 - Dispositions de refroidissement ou de ventilation

Abrégé

The disclosure relates to techniques for current sensing, in particular a current sensing apparatus comprising: at least three layers of which two are electrically conductive layers and one is an electrically insulating layer, the at least three layers being arranged above each other; the current trace (200) formed by a first electrically conductive layer of the at least three layers; and an embedded inductor (201a, 201b) formed by at least one second electrically conductive layer of the at least three layers. The embedded inductor comprises a first plurality of conductive turns (201a) that are wound along a first winding direction, and a second plurality of conductive turns (201b) that are wound along a second winding direction opposite to the first winding direction. The embedded inductor is configured to provide a sensing voltage indicative of a current (202) flowing through the current trace (200). The sensing voltage results from a superposition of voltages induced by a current (202) flowing through the current trace (200) in each of the two pluralities of conductive turns.

Classes IPC  ?

• G01R 15/18 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs inductifs, p. ex. des transformateurs
• H01F 5/00 - Bobines d'induction
• G01R 15/14 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort
• G01R 19/00 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe

Abrégé

Provided in the present application are a power module and a motor controller. The power module comprises an insulation substrate, a power device, a heat dissipation substrate and a welding layer. The power device is mounted on one side of the insulation substrate. The heat dissipation substrate is located on the side of the insulation substrate facing away from the power device. The welding layer fills between the insulation substrate and the heat dissipation substrate. A supporting member and a thinned member are arranged between the insulation substrate and the heat dissipation substrate, the supporting member being in contact with the insulation substrate and the heat dissipation substrate and located on the edge side of the insulation substrate, the supporting member being in contact with the welding layer, the projection of the thinned member on the insulation substrate overlapping the projection of the power device on the insulation substrate, and the thinned member being covered by the welding layer. The power module provided by the embodiments of the present application has the supporting member and the thinned member which not only ensure that the welding layer has high reliability, but also greatly increase the speed of dissipating heat of the power device from the insulation substrate via the heat dissipation substrate, thereby ensuring both the structural reliability and heat dissipation.

Classes IPC  ?

• H05K 1/02 - Circuits imprimés Détails
• H01L 23/492 - Embases ou plaques

Abrégé

Provided in the present application are a power converter and a control method therefor, and an energy storage system. The power converter comprises a plurality of power conversion circuits which are connected in parallel. In response to the reduction of the total output power of output ends of the plurality of power conversion circuits, at least one of the plurality of power conversion circuits can be switched from an operation state to a stop state, so that the conversion efficiency of each power conversion circuit in the operation state is improved, thereby improving the operation efficiency of the power converter, and particularly improving the efficiency of the power converter in a light load.

Classes IPC  ?

• H02M 1/00 - Détails d'appareils pour transformation
• H02M 1/36 - Moyens pour mettre en marche ou arrêter les convertisseurs
• H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries

Abrégé

The present application provides a motor and a powertrain. The motor comprises a stator. The stator comprises an end plate and multiple silicon steel pieces, the end plate and the multiple silicon steel pieces being stacked in the axial direction of the motor; each silicon steel piece is provided with cooling holes, the cooling holes penetrate through the silicon steel piece in the axial direction of the motor, and the cooling holes of the multiple silicon steel pieces are in communication with one another. The end plate comprises through holes, the through holes penetrate through the end plate in the axial direction of the motor, and the through holes are in communication with the cooling holes; the projection of the end plate in the axial direction of the motor is located in the projections of the silicon steel pieces in the axial direction of the motor, the cross-sectional area of the end plate is smaller than the cross-sectional areas of the silicon steel pieces, and the cross section of the end plate and the cross sections of the silicon steel pieces are all perpendicular to the axial direction of the motor. In the present application, the height of the stator in the axial direction is increased by the end plate, so that the end plate can block the insulating paint overflown from the stator slot and the overflowing insulating paint flows to the area that is not covered by the end plate, thereby reducing the risk of the insulating paint blocking the cooling holes.

Classes IPC  ?

• H02K 1/20 - Parties fixes du circuit magnétique avec des canaux ou des conduits pour l'écoulement d'un agent de refroidissement
• H02K 3/52 - Fixation des enroulements de pôles saillants ou de leurs connexions
• H02K 3/34 - Enroulements caractérisés par la configuration, la forme ou la réalisation de l'isolement entre conducteurs ou entre conducteur et noyau, p. ex. isolement d'encoches
• H02K 1/16 - Noyaux statoriques à encoches pour enroulements
• H02K 1/14 - Noyaux statoriques à pôles saillants
• H02K 1/18 - Moyens de montage ou de fixation des parties magnétiques fixes sur ou aux structures constituant le stator

Abrégé

Provided in the present application are a direct-current converter and a photovoltaic system. An input end of a direct-current conversion circuit is connected to an input end of the auxiliary power supply in parallel to serve as the input end of the direct-current converter, wherein the input end of the direct-current converter is used for being connected to a direct-current power supply; an output end of the auxiliary power supply is connected to an input end of a safety voltage output circuit; and an output end of the safety voltage output circuit is connected to an output end of the direct-current conversion circuit in parallel and then serves as the output end of the direct-current converter. The auxiliary power supply is used for outputting a second voltage to the safety voltage output circuit on the basis of a first voltage provided by the direct-current power supply when the direct-current conversion circuit does not perform voltage conversion. The safety voltage output circuit is used for outputting a safety voltage on the basis of the second voltage. The safety voltage is used for being compared with a preset safety voltage threshold value, so that the wiring state between the direct-current converter and the direct-current power supply is determined. The present application can reduce the measurement error of a safety voltage of an output end of a direct-current converter, thus improving the accuracy of wiring abnormality detection.

Classes IPC  ?

• H02M 3/158 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs avec commande automatique de la tension ou du courant de sortie, p. ex. régulateurs à commutation comprenant plusieurs dispositifs à semi-conducteurs comme dispositifs de commande finale pour une charge unique
• H02M 3/155 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
• H02M 1/32 - Moyens pour protéger les convertisseurs autrement que par mise hors circuit automatique
• H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs

Abrégé

Provided in the embodiments of the present application are a heat dissipation system and a charging pile. The heat dissipation system comprises a heat dissipation device and a charging device. The heat dissipation device comprises a heat exchanger, and the heat exchanger has a cooling liquid channel and a heat-exchange liquid channel. Each of a cooling liquid inlet and a cooling liquid outlet of the cooling liquid channel is in communication with a charging main body, such that cooling liquid in the charging main body circulates through the cooling liquid channel. Each of a heat-exchange liquid inlet and a heat-exchange liquid outlet of the heat-exchange liquid channel is used for communication with an external cooling device, such that heat-exchange liquid in the external cooling device circulates through the heat-exchange liquid channel. The heat-exchange liquid flowing through the heat-exchange liquid channel is used for cooling the cooling liquid flowing through the cooling liquid channel. The technical solution provided in the embodiments of the present application can improve the heat dissipation effect of the charging device, helping to meet growing heat dissipation demands of the charging device.

Classes IPC  ?

• H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage
• B60L 53/302 - Refroidissement des équipements de charge

Abrégé

A power module and a power conversion device. The power module comprises a first substrate, a second substrate and a conductive member, wherein the first substrate and the second substrate are arranged spaced apart from each other, and the conductive member is connected between the first substrate and the second substrate; a first chip is provided on the first substrate or the second substrate; the surface of the first substrate facing the second substrate comprises a first area and a second area surrounding the first area, the first area comprises an inner island and a groove surrounding the inner island, and the groove is filled with solder; and a mounting end surface of the conductive member faces the first area, and is supported by the inner island, and the mounting end surface of the conductive member is fixedly connected to the solder, so as to electrically connect the first chip to the conductive member. The inner island supporting the conductive member can increase the bonded line thickness, thereby improving the soldering strength between the first substrate and the conductive member.

Classes IPC  ?

• H01L 25/16 - Ensembles consistant en une pluralité de dispositifs à semi-conducteurs ou d'autres dispositifs à l'état solide les dispositifs étant de types couverts par plusieurs des sous-classes , , , , ou , p. ex. circuit hybrides
• H01L 23/492 - Embases ou plaques

Abrégé

Embodiments of the present application provide a circuit breaker and a photovoltaic system. The circuit breaker comprises a housing, busbars, detonating assemblies, and arc extinguishing assemblies. The housing comprises arc extinguishing chambers and detonating chambers which are correspondingly communicated, the arc extinguishing assemblies are accommodated in the arc extinguishing chambers, and the detonating assemblies are accommodated in the detonating chambers. The busbars pass through the housing, parts of the busbars are located between the arc extinguishing chambers and the detonating assemblies, and each detonating assembly is used for exploding and breaking the corresponding busbar when the current flowing through the busbar is greater than a safety threshold, so as to achieve a circuit breaking function. Each arc extinguishing assembly comprises a plurality of arc extinguishing plates and a first arc striking member, and the first arc striking member is fixed to the corresponding busbar. A first end of the first arc striking member comprises a first structure end, the first structure end is in conductive contact with the busbar, and a second end of the first arc striking member extends to the first arc extinguishing plate that is in the direction of extension of the busbar among the plurality of arc extinguishing plates. The arc extinguishing assembly can be suitable for protection of a high-voltage alternating current or direct current power distribution network, and has the advantage of rapid arc extinguishing.

Classes IPC  ?

• H01H 33/08 - Éléments fixes pour restreindre ou subdiviser l'arc, p. ex. plaques-barrières
• H01H 33/04 - Moyens pour éteindre ou empêcher des arcs entre organes traversés par le courant

Abrégé

The present application provides a circular stator lamination, a stator core, a motor, a powertrain and an electric vehicle. The circular stator lamination comprises an inner circumferential surface and an outer circumferential surface, the inner circumferential surface and the outer circumferential surface are distributed opposite to each other along the radial direction of the stator lamination, the outer circumferential surface comprises a plurality of protrusions, and the plurality of protrusions are arranged at intervals along the circumferential direction of the stator lamination; the circular stator lamination further comprises a first end surface and a second end surface, the first end surface and the second end surface are distributed opposite to each other along the axial direction of the stator lamination, at least one of the first end surface or the second end surface comprises a plurality of slots, the plurality of slots are distributed at intervals along the circumferential direction of the stator lamination, the opening of each slot faces the axis of the stator lamination, and each slot runs through the inner circumferential surface and the outer circumferential surface along the radial direction of the stator lamination. The circular stator lamination, the stator core, the motor, the powertrain and the electric vehicle provided by the present application can improve the motor efficiency and mitigate the problem of serious magnetic flux leakage of the stator core.

Classes IPC  ?

• H02K 1/14 - Noyaux statoriques à pôles saillants
• H02K 3/52 - Fixation des enroulements de pôles saillants ou de leurs connexions
• H02K 3/28 - Schémas d'enroulements ou de connexions entre enroulements
• H02K 3/12 - Enroulements caractérisés par la configuration, la forme ou le genre de construction du conducteur, p. ex. avec des conducteurs en barre disposés dans des encoches
• H02K 3/48 - Fixation des enroulements sur la structure statorique ou rotorique dans les encoches
• H02K 1/16 - Noyaux statoriques à encoches pour enroulements

Abrégé

An under-vehicle connection gun (100), an on-vehicle connection socket (200), and a liquid cooling apparatus. The under-vehicle connection gun (100) is used for plugging into the on-vehicle connection socket (200) arranged on a vehicle (1). The under-vehicle connection gun (100) comprises a plug-in end, the plug-in end comprising a liquid supply plug (103) and a liquid return plug (104), and the liquid supply plug (103) and the liquid return plug (104) being connected to the liquid cooling unit (2) by means of a pipeline. The plug-in end further comprises a first connection confirmation terminal (102), one end of the first connection confirmation terminal (102) being used for connecting to a first connection confirmation socket (202) of the on-vehicle connection socket (200), and the other end of the first connection confirmation terminal (102) being used for connecting to a first connection confirmation circuit. When the first connection confirmation terminal (102) is connected to the first connection confirmation socket (202), the first connection confirmation circuit and a connection confirmation circuit connected to the first connection confirmation socket (202) form a first connection confirmation loop, and the first connection confirmation loop is used for confirming the state of connection of the liquid supply plug (103) and liquid return plug (104) with the on-vehicle connection socket (200). The liquid cooling unit (2) can be used to improve the heat dissipation capability of the battery management system for the power battery of the vehicle (1), meeting heat dissipation requirements for battery super-charging.

Classes IPC  ?

• B60L 53/16 - Connecteurs, p. ex. fiches ou prises, spécialement adaptés pour recharger des véhicules électriques
• B60L 53/302 - Refroidissement des équipements de charge
• H01R 13/62 - Moyens pour faciliter l'engagement ou la séparation des pièces de couplage ou pour les maintenir engagées
• H01R 13/627 - Fixation du type à action brusque
• H01R 13/629 - Moyens additionnels pour faciliter l'engagement ou la séparation des pièces de couplage, p. ex. moyens pour aligner ou guider, leviers, pression de gaz

Abrégé

A composite connecting gun applied to a charging device, a composite connecting socket, and a charging device. The composite connecting gun is connected to a composite connecting socket in a plugging manner provided on a vehicle (1); the composite connecting gun comprises a plug-in end; the plug-in end comprises a liquid supply plug (103), a liquid return plug (104), and a charging plug (107); the liquid supply plug (103) and the liquid return plug (104) are connected to a liquid cooling unit (2) by means of a pipeline; the charging plug (107) is connected to a power supply module of a charging device; the plug-in end further comprises a first connecting confirmation terminal (102) and a second connecting confirmation terminal (108); one end of the first connecting confirmation terminal (102) is connected to a first connecting confirmation socket (202) of the composite connecting socket, and the other end of the first connecting confirmation terminal (102) is connected to a first connecting confirmation circuit; and one end of the second connecting confirmation terminal (108) is connected to a second connecting confirmation socket (208) of the composite connecting socket, and the other end of the second connecting confirmation terminal (108) is connected to a second connecting confirmation circuit. By means of the liquid cooling unit (2), the heat dissipation capability of a battery management system for a power battery of the vehicle (1) is improved, thereby meeting the super-charging heat dissipation requirement of the battery.

Classes IPC  ?

• B60L 53/16 - Connecteurs, p. ex. fiches ou prises, spécialement adaptés pour recharger des véhicules électriques
• B60L 53/14 - Transfert d'énergie par conduction

Abrégé

The present application provides a circuit breaker, a power converter, an energy storage system, and an electric vehicle. The circuit breaker comprises two busbars and two arc chutes. The two busbars are arranged in a first direction. The two arc chutes are arranged at an interval in the first direction, and the two arc chutes are respectively arranged in a second direction with the two busbars. Each arc chute comprises an arc plate. In the second direction, the distance between the arc plate and the corresponding busbar is the maximum distance between one of the arc chutes and the corresponding busbar. An arc plate in one of the arc chutes is connected to an arc plate in the other arc chute. When the circuit breaker is closed, the two busbars are connected; and when the circuit breaker is opened, the ends of the two busbars close to each other in the first direction are respectively bent towards the two arc chutes, so that the two busbars are disconnected to form an arc, and the two arc chutes are used for extinguishing the arc. The circuit breaker has high breaking capacity and is suitable for a high-voltage electric power system.

Classes IPC  ?

• H01H 9/30 - Moyens pour éteindre ou empêcher des arcs entre pièces traversées par le courant
• H01H 9/02 - Supports, enveloppes ou capots
• H01H 1/58 - Connexions électriques avec ou entre contactsBornes
• H01H 73/18 - Moyens pour éteindre ou supprimer un arc
• H01H 71/02 - BoîtiersEnveloppesSoclesGarnitures

Abrégé

A control pilot circuit applied to an electric vehicle and a charging pile. The control pilot circuit comprises a connection confirmation circuit; the electric vehicle comprises a liquid cooling socket, a direct current socket, and a connection confirmation socket; the charging pile comprises a liquid cooling plug, a direct current plug, and a connection confirmation plug; when the liquid cooling plug is connected to the liquid cooling socket and the direct current plug is connected to the direct current socket, a vehicle end connection confirmation circuit and a pile end connection confirmation circuit form a loop, and the voltage of a detection point in the loop is used for indicating a state of connection between the liquid cooling plug and the liquid cooling socket and a state of connection between the direct current plug and the direct current socket. The problem of heat dissipation of a power battery during charging can be solved, and the charging power of a charging device for the power battery can be improved.

Classes IPC  ?

• B60L 53/302 - Refroidissement des équipements de charge
• B60L 58/26 - Procédés ou agencements de circuits pour surveiller ou commander des batteries ou des piles à combustible, spécialement adaptés pour des véhicules électriques pour la surveillance et la commande des batteries pour la commande de la température des batteries par refroidissement
• B60L 53/16 - Connecteurs, p. ex. fiches ou prises, spécialement adaptés pour recharger des véhicules électriques
• B60L 53/31 - Colonnes de charge spécialement adaptées aux véhicules électriques

Abrégé

An onboard charging connection apparatus, an electric vehicle, a liquid cooling device, and a charging pile, the onboard charging connection apparatus being used for electric vehicles. The onboard charging connection apparatus comprises: a first vehicle socket and a liquid cooling connection confirmation circuit; and the first vehicle socket comprises a liquid cooling socket and a liquid cooling connection confirmation socket. One end of the liquid cooling socket is used for being connected to a liquid cooling plug of a liquid cooling connector, and the other end of the liquid cooling socket is connected to a thermal management system of a power battery by means of a liquid cooling pipeline. One end of the liquid cooling connection confirmation socket is used for being connected to a liquid cooling connection confirmation plug of the liquid cooling connector, and the other end of the liquid cooling connection confirmation socket is connected to the liquid cooling connection confirmation circuit. The onboard charging connection apparatus is used for determining the connection state of the liquid cooling socket and the liquid cooling plug via the liquid cooling connection confirmation circuit; the problem of heat dissipation during charging of power batteries can be solved, and charging power provided by charging apparatuses to power batteries can be improved.

Classes IPC  ?

• B60L 53/302 - Refroidissement des équipements de charge
• B60L 53/16 - Connecteurs, p. ex. fiches ou prises, spécialement adaptés pour recharger des véhicules électriques
• B60L 53/31 - Colonnes de charge spécialement adaptées aux véhicules électriques
• B60L 58/26 - Procédés ou agencements de circuits pour surveiller ou commander des batteries ou des piles à combustible, spécialement adaptés pour des véhicules électriques pour la surveillance et la commande des batteries pour la commande de la température des batteries par refroidissement

Abrégé

The invention provides an onboard charging connection apparatus, an electric vehicle, a charging connector, and a charging pile; the onboard charging connection apparatus comprises a vehicle socket and a connection confirmation circuit; and the vehicle socket comprises a direct current socket, a liquid cooling socket, and a connection confirmation socket. The onboard charging connection apparatus is used for determining, via the connection confirmation circuit, the connection state of the direct current socket with a direct current plug, and for determining the connection state of the liquid cooling socket with a liquid cooling plug; and when the liquid cooling socket is successfully connected to the liquid cooling plug and the direct current socket is successfully connected to the direct current plug, the direct current socket is used for receiving a direct current to charge a power battery. The present application can solve the problem of heat dissipation during charging of power batteries, and charging power provided by charging apparatuses to power batteries can be improved.

Classes IPC  ?

• B60L 53/302 - Refroidissement des équipements de charge
• B60L 58/26 - Procédés ou agencements de circuits pour surveiller ou commander des batteries ou des piles à combustible, spécialement adaptés pour des véhicules électriques pour la surveillance et la commande des batteries pour la commande de la température des batteries par refroidissement
• B60L 53/16 - Connecteurs, p. ex. fiches ou prises, spécialement adaptés pour recharger des véhicules électriques
• B60L 53/31 - Colonnes de charge spécialement adaptées aux véhicules électriques

Abrégé

The present application provides an energy storage device and a photovoltaic energy storage system. The energy storage device comprises a thermal management module, a battery module, a first power unit, a second power unit, and a radiator module. The thermal management module comprises a shell, and a multi-way valve, a first evaporator and a condenser which are arranged in the shell, and the shell comprises a plurality of first interfaces. Two coolant liquid ports of the first evaporator are connected to the multi-way valve, and two coolant liquid ports of the condenser are connected between the multi-way valve and one first interface. The battery module comprises a battery heat exchange plate, the first power unit comprises a first power circuit heat exchange plate, the second power unit comprises a second power circuit heat exchange plate, and the radiator module comprises a radiator. The battery heat exchange plate, the first power circuit heat exchange plate, the second power circuit heat exchange plate, and the radiator are connected to the multi-way valve respectively by means of the corresponding first interfaces. By using the energy storage device, the temperatures of a battery and two power circuit heat exchange plates can be efficiently regulated and controlled.

Classes IPC  ?

• H01M 10/613 - Refroidissement ou maintien du froid

Abrégé

Provided is an electric vehicle (300). The electric vehicle (300) comprises a power battery (320) and a thermal management system (330). The thermal management system (330) comprises a first cooling circuit (331), a second cooling circuit (332), a first heat exchanger (333), and a cooling assembly (334). The first cooling circuit (331), by means of the first heat exchanger (333), exchanges heat with the second cooling circuit (332). The second cooling circuit (332) is used for cooling the power battery (320). The cooling assembly (334) comprises a cooling liquid intake line (3341) and a cooling liquid discharge line (3342). The cooling liquid intake line (3341) and the cooling liquid discharge line (3342) are each connected to an external liquid cooling device, so as to form a third cooling circuit with the external liquid cooling device. Therefore, when the power battery (320) performs high-power charging, the thermal management system (330) can cool the power battery (320) by using a liquid phase cooling medium transmitted by the external liquid cooling device in the third cooling circuit, helping to satisfy heat dissipation requirements of the power battery (320) during high-power charging, so that the electric vehicle (300) can perform high-power charging, reducing the charging duration of the electric vehicle (300).

Classes IPC  ?

• B60L 53/302 - Refroidissement des équipements de charge
• B60L 58/26 - Procédés ou agencements de circuits pour surveiller ou commander des batteries ou des piles à combustible, spécialement adaptés pour des véhicules électriques pour la surveillance et la commande des batteries pour la commande de la température des batteries par refroidissement
• B60L 53/16 - Connecteurs, p. ex. fiches ou prises, spécialement adaptés pour recharger des véhicules électriques
• B60L 53/31 - Colonnes de charge spécialement adaptées aux véhicules électriques

Abrégé

Provided in the embodiments of the present application are a charging system and an on-board charging connection apparatus. The charging system comprises a charging pile, and an on-board charging connection apparatus applied to an electric vehicle, wherein the charging pile comprises a charging device and a liquid cooling device, the charging device can output a direct current to the electric vehicle by means of the on-board charging connection apparatus, and a liquid-phase cooling medium in the liquid cooling device can be transferred to a thermal management system of a traction battery in the electric vehicle by means of the on-board charging connection apparatus. Therefore, when high-power charging is performed on a traction battery of an electric vehicle, a liquid-phase cooling medium can also be transferred to a thermal management system of the traction battery, which is conducive to meeting the heat dissipation requirement of the traction battery during high-power charging, such that high-power charging can be performed on the electric vehicle, thereby shortening the duration of time taken to charge the electric vehicle.

Classes IPC  ?

• B60L 53/302 - Refroidissement des équipements de charge
• B60L 58/26 - Procédés ou agencements de circuits pour surveiller ou commander des batteries ou des piles à combustible, spécialement adaptés pour des véhicules électriques pour la surveillance et la commande des batteries pour la commande de la température des batteries par refroidissement
• B60L 53/16 - Connecteurs, p. ex. fiches ou prises, spécialement adaptés pour recharger des véhicules électriques
• B60L 53/60 - Surveillance et commande des stations de charge
• B60L 53/31 - Colonnes de charge spécialement adaptées aux véhicules électriques

Abrégé

A charging station (400), the charging station comprising a charging device (410) and a liquid cooling device (420), a station-end charging output interface (411) of the charging device being used for electrical connection to an electric vehicle (300) so as to transmit a direct current to the electric vehicle. The liquid cooling device comprises a station-end liquid inlet/outlet (421), the station-end liquid inlet/outlet comprising a station-end liquid inlet interface (4211), a station-end liquid outlet interface (4212), and a station-end cooling connection confirmation CC interface (4213), the station-end liquid inlet interface being used for transmitting a liquid-phase cooling medium in the liquid cooling device to the electric vehicle, the station-end liquid inlet interface being used for receiving the liquid-phase cooling medium in the electric vehicle, and a voltage signal of the station-end cooling CC interface being used for indicating the state of connection of the station-end liquid inlet/outlet and the electric vehicle. When the charging device charges the electric vehicle at high power, the liquid cooling device cools the electric vehicle by transmitting the liquid-phase cooling medium to the electric vehicle, so that the requirement for heat dissipation of the power battery of the electric vehicle during high-power charging can be met.

Classes IPC  ?

• B60L 53/302 - Refroidissement des équipements de charge

Abrégé

The present application relates to the technical field of motors, and provides a motor in which a stator discharges a liquid for winding cooling, a powertrain, and an electric vehicle. The motor in which the stator discharges a liquid for winding cooling comprises an axial gap, two end plates, and multiple laminations; the multiple laminations are arranged between the two end plates in the axial direction of the motor; one end plate comprises multiple liquid outlets, the multiple liquid outlets are arranged at intervals in the circumferential direction of the motor, and the axial gap is used for communicating at least two adjacent liquid outlets; the axial gap includes an axial gap between two laminations, and at least one lamination is arranged between the two laminations in the axial direction of the motor, or includes an axial gap between one lamination and an end plate, and the end plate is arranged adjacent to one lamination in the axial direction of the motor. After a cooling working medium enters the motor, the cooling working medium can flow in the circumferential direction of the motor, thereby optimizing the heat dissipation effect of the motor.

Classes IPC  ?

• H02K 1/20 - Parties fixes du circuit magnétique avec des canaux ou des conduits pour l'écoulement d'un agent de refroidissement
• H02K 9/193 - Dispositions de refroidissement ou de ventilation pour machines avec enveloppe fermée et circuit fermé de refroidissement utilisant un agent de refroidissement liquide, p. ex. de l'huile avec des moyens de remplissage de l'agent de refroidissementDispositions de refroidissement ou de ventilation pour machines avec enveloppe fermée et circuit fermé de refroidissement utilisant un agent de refroidissement liquide, p. ex. de l'huile avec des moyens pour empêcher les fuites de l'agent de refroidissement
• H02K 5/20 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction avec des canaux ou des conduits pour la circulation d'un agent de refroidissement
• H02K 7/116 - Association structurelle avec des embrayages, des freins, des engrenages, des poulies ou des démarreurs mécaniques avec des engrenages
• B60K 1/00 - Agencement ou montage des ensembles de propulsion électriques
• B60K 11/02 - Dispositions des ensembles de propulsion relatives au refroidissement avec liquide de refroidissement

Abrégé

The present application relates to the technical field of motors, and provides a stator lamination having circumferential flow channels, a motor, a powertrain, and an electric vehicle. The stator lamination comprises a plurality of communication holes and a plurality of circumferential flow channels; in the axial direction of a stator, each communication hole and each circumferential flow channel pass through the stator lamination; in the circumferential direction of the stator, the plurality of communication holes are arranged at intervals, the plurality of circumferential flow channels are arranged at intervals, and each circumferential flow channel is communicated with at least two communication holes; and in the radial direction of the stator, the distance between the center of the circumferential flow channel and the center of the stator lamination is greater than the distance between the center of the communication hole and the center of the stator lamination. A cooling working medium can flow in the circumferential direction of the motor after entering the motor, optimizing the heat dissipation effect on the motor.

Classes IPC  ?

• H02K 1/20 - Parties fixes du circuit magnétique avec des canaux ou des conduits pour l'écoulement d'un agent de refroidissement
• H02K 9/193 - Dispositions de refroidissement ou de ventilation pour machines avec enveloppe fermée et circuit fermé de refroidissement utilisant un agent de refroidissement liquide, p. ex. de l'huile avec des moyens de remplissage de l'agent de refroidissementDispositions de refroidissement ou de ventilation pour machines avec enveloppe fermée et circuit fermé de refroidissement utilisant un agent de refroidissement liquide, p. ex. de l'huile avec des moyens pour empêcher les fuites de l'agent de refroidissement
• H02K 5/20 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction avec des canaux ou des conduits pour la circulation d'un agent de refroidissement
• H02K 7/116 - Association structurelle avec des embrayages, des freins, des engrenages, des poulies ou des démarreurs mécaniques avec des engrenages
• B60K 17/12 - Agencement ou montage des transmissions sur les véhicules caractérisées par la disposition, l'emplacement ou le type de mécanisme de transmission électrique

Abrégé

A powertrain (10) and an electric vehicle (1). The powertrain (10) comprises a die-cast housing (100) and a heat exchanger (400). The die-cast housing (100) comprises a speed reducer accommodating cavity (111) formed inside the die-cast housing (100) by die-casting and four holes (170). The speed reducer accommodating cavity (111) is used for accommodating a speed reducer (200). Among said holes, two holes (170) are used for being communicated with a liquid channel in the heat exchanger (400), and the other two holes (170) are used for being communicated with an oil channel in the heat exchanger (400); openings of the four holes (170) all face the heat exchanger (400). The speed reducer accommodating cavity (111), the four holes (170), and the heat exchanger (400) are arranged in a first direction. The first direction is perpendicular to the axial direction of a motor (300). The projections of the four holes (170) are located in the projection of the speed reducer accommodating cavity (111) in the radial direction of the motor (300). According to the solution, by forming the two holes (170) used for being communicated with the liquid channel in the heat exchanger (400) in the die-cast housing, instead of forming the two holes above the heat exchanger (400), the occupied space above the heat exchanger is reduced, and the overall layout space of the powertrain (10) is reduced, thereby solving the problem that in some vehicle models, the layout is not feasible due to small space.

Classes IPC  ?

• F16H 57/04 - Caractéristiques relatives à la lubrification ou au refroidissement
• F16H 57/023 - Montage ou installation d'engrenages ou d'arbres dans les boîtes de vitesses, p. ex. procédés ou moyens d'assemblage
• F16H 57/02 - Boîtes de vitessesMontage de la transmission à l'intérieur

Abrégé

Embodiments of the present application disclose a drive chip, a power chip, and a switch mode power supply. The drive chip comprises a drive circuit and a current generation circuit, and the current generation circuit comprises a sampling circuit, a slope control circuit, and a current output circuit. The sampling circuit controls the current output circuit to output a rectifier diode sampling current in a stage in which a rectifier diode is connected. On the basis of the rectifier diode sampling current outputted by the current output circuit in the stage in which the rectifier diode is connected in a k-th control period and a k-th main power transistor analog current outputted by the current output circuit in a stage in which a main power transistor is connected, the slope control circuit controls the current output circuit to output a (k+1)-th main power transistor analog current in the stage in which the main power transistor is connected in a (k+1)-th control period. Due to the foregoing configuration, on the basis of the rectifier diode sampling current and the main power transistor analog current, the drive circuit controls the connection and disconnection of the main power transistor and the rectifier diode, and the precision of control of the main power transistor and the rectifier diode is improved.

Classes IPC  ?

• H02M 1/08 - Circuits spécialement adaptés à la production d'une tension de commande pour les dispositifs à semi-conducteurs incorporés dans des convertisseurs statiques

Abrégé

The application provides a control guide circuit applied to an electric vehicle and liquid cooling device. The control guide circuit comprises a connection confirmation circuit. The electric vehicle comprises a liquid cooling socket and a liquid cooling connection confirmation socket. The liquid cooling device comprises a liquid cooling plug and a liquid cooling connection confirmation plug. When the liquid cooling plug is connected to the liquid cooling socket, a vehicle end connection confirmation circuit and a pile end connection confirmation circuit form a loop, and the voltage of a detection point in the loop is used for indicating the connection state of the liquid cooling plug and the liquid cooling socket. The present application can solve the heat dissipation problem during charging of the power battery, and improve the charging power of a charging apparatus for the power battery.

Classes IPC  ?

• B60L 53/302 - Refroidissement des équipements de charge
• B60L 58/26 - Procédés ou agencements de circuits pour surveiller ou commander des batteries ou des piles à combustible, spécialement adaptés pour des véhicules électriques pour la surveillance et la commande des batteries pour la commande de la température des batteries par refroidissement
• B60L 53/16 - Connecteurs, p. ex. fiches ou prises, spécialement adaptés pour recharger des véhicules électriques
• B60L 53/60 - Surveillance et commande des stations de charge
• B60L 53/31 - Colonnes de charge spécialement adaptées aux véhicules électriques

Abrégé

A vehicle-mounted charging connection apparatus, an electric vehicle, a liquid cooling device, and a charge point. The vehicle-mounted charging connection apparatus comprises a first vehicle socket and a liquid cooling connection confirmation circuit. The vehicle-mounted charging connection apparatus is used for: determining, by means of the liquid cooling connection confirmation circuit, a connection state between a liquid cooling socket and a liquid cooling plug; and in response to the liquid cooling socket being successfully connected to the liquid cooling plug, sending to a liquid cooling device a message for indicating that the liquid cooling socket and the liquid cooling plug have been successfully connected. Thus, the problem of heat dissipation during charging of a power battery can be solved, and the charging power of the charging apparatus for the power battery is increased.

Classes IPC  ?

• B60L 53/302 - Refroidissement des équipements de charge
• B60L 53/16 - Connecteurs, p. ex. fiches ou prises, spécialement adaptés pour recharger des véhicules électriques
• B60L 53/31 - Colonnes de charge spécialement adaptées aux véhicules électriques
• B60L 58/26 - Procédés ou agencements de circuits pour surveiller ou commander des batteries ou des piles à combustible, spécialement adaptés pour des véhicules électriques pour la surveillance et la commande des batteries pour la commande de la température des batteries par refroidissement

Abrégé

Provided in the embodiments of the present application are a charging method. The charging method comprises: determining a connection state between an electric vehicle and a charging device, and a connection state between the electric vehicle and an out-of-vehicle liquid cooling device; and on the basis that the electric vehicle has been connected to the charging device and that the electric vehicle has been connected to the out-of-vehicle liquid cooling device, sending an overcharging request message to the charging device, wherein the overcharging request message is used for instructing the charging device to charge the electric vehicle at a first output power, and the first output power is greater than or equal to a preset power. In the charging method provided in the embodiments of the present application, when the charging device performs high-power charging on the electric vehicle, the out-of-vehicle liquid cooling device can cool the electric vehicle by means of delivering a liquid-phase cooling medium to the electric vehicle, which is conducive to meeting a heat dissipation requirement of a traction battery of the electric vehicle during high-power charging, so that high-power charging can be performed on the electric vehicle, thereby reducing the charging duration of the electric vehicle.

Classes IPC  ?

• B60L 53/302 - Refroidissement des équipements de charge
• B60L 58/26 - Procédés ou agencements de circuits pour surveiller ou commander des batteries ou des piles à combustible, spécialement adaptés pour des véhicules électriques pour la surveillance et la commande des batteries pour la commande de la température des batteries par refroidissement

Abrégé

Provided in the present application are an all-in-one onboard power supply apparatus, an electric motor controller, and a power assembly, which are used for integrating a power control circuit of a compressor and a power control circuit of a heater, so as to save on the hardware costs. The onboard power supply apparatus comprises a housing, and a power conversion circuit, a switch module and a compressor electric motor drive circuit, which are accommodated in the housing, wherein the surface of the housing is provided with a compressor electric motor interface and a heating module interface; the power conversion circuit is used for receiving an alternating current and outputting a first direct current to charge a traction battery or supply power to the compressor electric motor drive circuit; the compressor electric motor drive circuit comprises three bridge arms, which are connected in parallel, two ends of the three bridge arms being used for receiving the first direct current or receiving the power supply of the traction battery, a bridge arm midpoint of each bridge arm being used for being connected to a one-phase winding of a compressor electric motor by means of the compressor electric motor interface, and a bridge arm midpoint of at least one bridge arm being used for driving a heating module by means of the heating module interface; and the switch module is used for turning on or turning off a connection between the bridge arm midpoint of the at least one bridge arm and the heating module.

Classes IPC  ?

• B60L 1/00 - Fourniture de l'énergie électrique à l'équipement auxiliaire des véhicules à traction électrique

Abrégé

A power assembly (10), comprising a die-cast housing (100) and a speed reducer end cover (130), wherein the die-cast housing (100) comprises a speed reducer accommodating cavity (111), an electric motor accommodating cavity (121) and a speed reducer oil channel protrusion (160) which are integrally die-cast; and the speed reducer accommodating cavity (111) and the electric motor accommodating cavity (121) are configured to accommodate a speed reducer (200) and an electric motor (300), respectively. The speed reducer oil channel protrusion (160) is configured to be embedded into an internal oil channel of the speed reducer end cover (130), a protrusion oil hole (162) and an internal oil channel of the speed reducer end cover (130) are connected to each other by means of a mutually-embedded structure, the speed reducer oil channel protrusion (160) further comprises the protrusion oil hole (162), an opening of the protrusion oil hole (162) faces the speed reducer end cover (130), and the protrusion oil hole (162) is configured to be in direct communication with the internal oil channel of the speed reducer end cover (130) and to be in communication with the electric motor accommodating cavity (121) by means of the internal oil channel of the die-cast housing, so as to output cooling oil to the speed reducer or an electric motor shaft system for cooling and lubrication. In the power assembly, it is not necessary to additionally use a sealing ring and a sealing gasket; thus, a requirement for reducing the number of parts is met. Further provided is an electric vehicle.

Classes IPC  ?

• F16H 57/04 - Caractéristiques relatives à la lubrification ou au refroidissement
• F16H 57/023 - Montage ou installation d'engrenages ou d'arbres dans les boîtes de vitesses, p. ex. procédés ou moyens d'assemblage
• F16H 57/02 - Boîtes de vitessesMontage de la transmission à l'intérieur

Abrégé

The present application provides a photovoltaic inverter, comprising a housing, a main circuit board, a positive connector, a negative connector, an upper plate support and a convergence conductor. One end of the positive connector is connected between the upper plate support and the main circuit board, and one end of the negative connector is electrically connected to the main circuit board by means of the convergence conductor. The positive connector or the negative connector comprises an insulating base and a metal inserting piece, one end of the insulating base is located in the housing, the other end of the insulating base is located outside the housing, and the positive connector or the negative connector is fixed to the housing by means of the insulating base. The insulating base is of a hollow tubular structure, the metal inserting piece is wrapped in the insulating base, and the metal inserting piece comprises an interface part, a fixing part and a contact part. The interface part is configured to be connected to a photovoltaic assembly, the contact part is of a flat structure, the contact part is configured to be connected to the main circuit board or the convergence conductor in a stacked mode, and the fixing part is configured to be mechanically fixed to the insulating base. The connectors are electrically connected to the circuit board by means of the upper plate support, such that the installation process can be simplified, and the connection reliability is improved.

Classes IPC  ?

• H01R 13/00 - Détails de dispositifs de couplage des types couverts par les groupes ou

Abrégé

A heat exchange apparatus and an energy storage apparatus, relating to the technical field of cooling and dehumidification devices. The heat exchange apparatus is used for being arranged in an energy storage apparatus, and comprises a heat exchanger and a partition member. The heat exchanger is internally provided with a refrigerant channel; the partition member is located in the heat exchanger; the partition member divides the heat exchanger into a first heat exchange portion and a second heat exchange portion, and divides the refrigerant channel into a first refrigerant channel and a second refrigerant channel; the first heat exchange portion is used for dissipating heat from an energy storage battery; the second heat exchange portion is located outside the energy storage battery and used for reducing the air humidity in an energy storage cabinet; and the first refrigerant channel is separately communicated with a first refrigerant inlet pipe and a first refrigerant output pipe, and the second refrigerant channel is separately communicated with a second refrigerant inlet pipe and a second refrigerant outlet pipe. In the present application, the heat exchanger is divided into two heat exchange portions by means of the partition member so as to form a cooling module for the energy storage battery and a dehumidification module for the energy storage battery, respectively, such that dual cooling of the temperature of the energy storage battery and the humidity of the environment in which the energy storage battery is located can be realized by means of a single heat exchange component.

Classes IPC  ?

• H01M 10/613 - Refroidissement ou maintien du froid

Abrégé

Provided in the present application are a rotor punched sheet having protrusions, an electric motor rotor, an electric motor and a power assembly. The rotor punched sheet having protrusions comprises a center hole and a plurality of through holes, wherein the plurality of through holes are arranged around the center hole. The dimension of each through hole in a first direction is smaller than that of each through hole in a second direction, and each through hole comprises two hole walls, which are oppositely arranged in the first direction. One hole wall of one through hole comprises: a plurality of protrusions, which are spaced apart in the second direction, the length of each protrusion in the first direction being less than the spacing between the two hole walls; or a plurality of grooves, which are spaced apart in the second direction, each groove comprising a groove bottom and a groove opening, which are oppositely arranged in the first direction, and in the second direction, the dimension of the groove opening being greater than the dimension of the groove bottom. Since the hole wall is provided with the protrusions or grooves, gaps are formed between a magnet and the hole wall, thereby preventing the direct contact between the magnet and the hole wall, such that the phenomenon of a short circuit occurring between insulated punched sheets by means of the magnet is reduced, thereby reducing eddy current losses in an iron core, and thus the efficiency of an electric motor is improved.

Classes IPC  ?

• H02K 1/276 - Aimants encastrés dans le noyau magnétique, p. ex. aimants permanents internes [IPM]
• H02K 1/24 - Noyaux rotoriques à pôles saillants
• H02K 1/28 - Moyens de montage ou de fixation des parties magnétiques tournantes sur ou aux structures constituant le rotor
• H02K 1/27 - Noyaux rotoriques à aimants permanents

Abrégé

An all-in-one power supply apparatus (100) for an electric vehicle, a power assembly, and an electric vehicle. The all-in-one power supply apparatus (100) comprises a housing (101), a first control circuit (102) accommodated in the housing (101), a second control circuit (103), a third control circuit (104), a first group of legs (105), a second group of legs (106), a third group of legs (107), and a fourth group of legs (108). The first control circuit (102) controls the first group of legs (105) to receive a first alternating current. The second control circuit (103) controls two ends of the second group of legs (106) to output a first direct current or receive power from a power battery (115). The third control circuit (104) controls the midpoints of the legs of the third group of legs (107) to output a second alternating current, and controls an output terminal of the fourth group of legs (108) to output a second direct current. By means of sharing leg circuits and control circuits, the use of components is reduced, thus lowering costs, reducing the size and weight, and making the all-in-one power supply apparatus (100) more compact. The shared control circuits can also improve the cooperative capability between components, thereby enabling rapid responses.

Classes IPC  ?

• B60L 1/00 - Fourniture de l'énergie électrique à l'équipement auxiliaire des véhicules à traction électrique
• B60L 15/00 - Procédés, circuits ou dispositifs pour commander la propulsion des véhicules à traction électrique, p. ex. commande de la vitesse des moteurs de traction en vue de réaliser des performances désiréesAdaptation sur les véhicules à traction électrique de l'installation de commande à distance à partir d'un endroit fixe, de différents endroits du véhicule ou de différents véhicules d'un même train
• B60L 53/22 - Détails de structure ou aménagements des convertisseurs de charge spécialement adaptés pour recharger des véhicules électriques
• B60L 50/60 - Propulsion électrique par source d'énergie intérieure au véhicule utilisant de la puissance de propulsion fournie par des batteries ou des piles à combustible utilisant de l'énergie fournie par des batteries
• H02M 7/00 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continuTransformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif
• H02M 1/00 - Détails d'appareils pour transformation
• H02J 7/02 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries pour la charge des batteries par réseaux à courant alternatif au moyen de convertisseurs

Abrégé

The present application provides a micro inverter and a current measurement method. The micro inverter comprises: a primary-side circuit, which is adapted to be connected to a photovoltaic module and converts a direct current outputted by the photovoltaic module into an alternating current; a transformer, a primary-side winding of the transformer being coupled to the primary-side circuit, and the transformer being used for stepping up or stepping down of the voltage of the alternating current converted by the primary-side circuit; a secondary-side circuit, a secondary-side winding of the transformer being coupled to the secondary-side circuit, and the secondary-side circuit being used for converting the alternating current after voltage stepping up or stepping down into a power frequency alternating current and outputting the power frequency alternating current to a power grid by means of an output port; and a current measurement circuit, comprising a current transformer, the current transformer being located between the secondary-side winding of the transformer and the secondary-side circuit, and the current measurement circuit being used for collecting a high-frequency alternating current of the secondary-side winding by means of the current transformer, and on the basis of the high-frequency alternating current, measuring the alternating current outputted by the output port. The device in the alternating current measurement circuit in the present application has a small size and low cost, and is beneficial to being used in the micro inverter.

Classes IPC  ?

• H02M 7/5387 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs, p. ex. onduleurs à impulsions à un seul commutateur dans une configuration en pont
• G01R 19/25 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe utilisant une méthode de mesure numérique
• G01R 15/20 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs galvano-magnétiques, p. ex. des dispositifs à effet Hall
• H02M 7/5395 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs, p. ex. onduleurs à impulsions à un seul commutateur avec commande automatique de la forme d'onde ou de la fréquence de sortie par modulation de largeur d'impulsions

Abrégé

The present application provides a power module, a processing method therefor and a power device, and is characterized in that the power module comprises a chip body, a first electrode layer and a metal layer, wherein the first electrode layer is connected to the chip body, the projection of the first electrode layer on a first plane is located within the projection range of the chip body on the first plane, the first plane is parallel to the contact surface between the chip body and the first electrode layer, the metal layer coats the periphery of the first electrode layer, the surface of the metal layer close to the chip body is in contact with the chip body, and the projection of the chip body on the first plane does not exceed the projection range of a combination of the first electrode layer and the metal layer on the first plane. In the solution of the present application, the metal layer can coat the periphery of the first electrode layer, such that the back side of the chip body will be not exposed, so as to prevent the chip body from separating from a soldering layer, thus avoiding the failure of the power module, and improving the stability of the power module.

Classes IPC  ?

• H01L 23/31 - Encapsulations, p. ex. couches d’encapsulation, revêtements caractérisées par leur disposition
• H01L 23/48 - Dispositions pour conduire le courant électrique vers le ou hors du corps à l'état solide pendant son fonctionnement, p. ex. fils de connexion ou bornes

Abrégé

Provided in the present application are a power conversion apparatus and a control module. The power conversion apparatus comprises a DC/DC conversion circuit and a control module. The DC/DC conversion circuit comprises an inverter circuit, a resonant unit and a rectifier circuit, wherein the inverter circuit comprises a plurality of bridge arms, and each bridge arm comprises a plurality of switching tubes. The control module is used for controlling the plurality of switching tubes to work for a first duration with a first frequency as a switching frequency, and then controlling the switching frequency to be switched to a second frequency; and controlling the plurality of switching tubes to work for a second duration with the second frequency as the switching frequency, wherein the first frequency is greater than the second frequency, and the first duration is shorter than the second duration. In the present application, a switching tube is made to work for a short duration when the switching frequency is large and to work for a long duration when the switching frequency is small, such that an output voltage can be prevented from changing overly fast or slow, thereby improving the flexibility and stability of a power conversion apparatus during use.

Classes IPC  ?

• H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs

Abrégé

The present application provides a thermal management system, an energy storage system, and a photovoltaic inverter system. The thermal management system comprises a coolant system, a refrigerant system, a heat exchange part, and a bearing part. The coolant system comprises a coolant flow channel plate and a plurality of coolant end components. The refrigerant system comprises a refrigerant flow channel plate and a plurality of refrigerant end components. The heat exchange part is configured to perform heat exchange between the coolant system and the refrigerant system. The plurality of coolant end components and the refrigerant flow channel plate are mounted on a same side of the coolant flow channel plate. The bearing part is fastened on the coolant flow channel plate, and the bearing part comprises a mounting through hole. The parts of the thermal management system are integrally arranged, so that the complexity of mounting and maintenance can be reduced. By means of using the coolant flow channel plate that is easy to process and has a low cost as a mounting substrate, mounting a plurality of parts of a coolant circulation system and the refrigerant system on the mounting substrate, and independently configuring a metallic bearing part, the dimension of the refrigerant flow channel plate can be reduced, and further the processing difficulty and cost of the refrigerant flow channel plate are reduced.

Classes IPC  ?

• H01M 10/63 - Systèmes de commande
• H02S 40/42 - Moyens de refroidissement

Abrégé

The present application relates to the technical field of capacitors, and particularly relates to a capacitor module and a power converter. The capacitor module comprises a housing and a capacitor core pack assembly, wherein the housing comprises an accommodating cavity having an opening at one end, and the accommodating cavity is used for accommodating the capacitor core pack assembly; and the capacitor core pack assembly comprises a plurality of capacitor core packs, there is a gap between every two adjacent capacitor core packs, a cathode foil comprised in each capacitor core pack is partially exposed from the surface of the capacitor core pack, the exposed portion of the cathode foil is located at the end of the capacitor core pack that is away from the opening of the housing, and the exposed portion of the cathode foil is in contact with the housing, so as to transfer to the housing heat generated by the capacitor core pack. In the capacitor module of the present application, a plurality of capacitor core packs are integrated into one accommodating cavity, thereby reducing the volume of the capacitor module.

Classes IPC  ?

• H01G 2/10 - BoîtiersEncapsulations
• H01G 2/08 - Dispositions de réfrigérationDispositions de chauffageDispositions de ventilation
• H01G 4/228 - Bornes

Abrégé

Provided in the present application are a flat-wire winding having welding faces on folded line segments, a flat-wire electric motor and a stator, and a power assembly. The axial dimension of the flat-wire electric motor can be reduced. The stator of a flat-wire electric motor comprises a stator core and a stator winding, wherein the stator winding comprises a plurality of flat-wire windings, each flat-wire winding comprises at least one wire segment, and each wire segment comprises a straight line segment and two folded line segments, the straight line segment being configured to be embedded into a stator slot of the stator core in the flat-wire electric motor, and the folded line segments being configured to be exposed out of stator slots. The extension direction of each folded line segment intersects the extension direction of the straight line segment, and the extension directions of the two folded line segments are different from each other. The end portion of at least one folded line segment away from the straight line segment comprises a welding face, and the cross-sectional area of the end portion is less than the cross-sectional area of the straight line segment and the cross-sectional area of each folded line segment.

Classes IPC  ?

• H02K 3/28 - Schémas d'enroulements ou de connexions entre enroulements
• H02K 3/50 - Fixation des têtes de bobines, des connexions équipotentielles ou des connexions s'y raccordant
• H02K 3/48 - Fixation des enroulements sur la structure statorique ou rotorique dans les encoches
• H02K 1/16 - Noyaux statoriques à encoches pour enroulements

Abrégé

Provided in the present application are an isolated power supply chip and a power conversion apparatus. The isolated power supply chip comprises a transformer, a transmitting module and a plurality of receiving modules, wherein the transformer, the transmitting module and the plurality of receiving modules are packaged in the same housing; the transformer comprises a primary coil and a plurality of secondary coils; the transmitting module is used for transmitting to each secondary coil, by means of the primary coil, electric energy provided by a power supply; and each receiving module is used for transmitting the electric energy to a load by means of the connected secondary coil. Using the present application can provide multiple output ends that satisfy electrical isolation, and can achieve a high space utilization rate, improve the integration level and applicability of an apparatus, and reduce design costs.

Classes IPC  ?

• H02J 50/10 - Circuits ou systèmes pour l'alimentation ou la distribution sans fil d'énergie électrique utilisant un couplage inductif

Abrégé

The present disclosure relates to a device for operating an externally excited synchronous motor (EESM). The device comprises one or more exciters each being configured to provide a direct current and direct voltage of a first polarity and a direct current and direct voltage of a second polarity to a respective field winding of a rotor of the EESM. Each of the one or more exciters is configured to control the direction of magnetic flux generated by the respective field winding by providing the direct current and direct voltage of the first polarity or the direct current and direct voltage of the second polarity to the respective field winding. Further a motor arrangement is disclosed, the motor arrangement comprising such a device and an EESM.

Classes IPC  ?

• H02P 6/32 - Dispositions pour la commande de moteurs à champ enroulé, p. ex. de moteurs avec bobines d’excitation

Abrégé

The present application provides a power line communication apparatus, comprising a first modulation circuit configured in a first power device, a second modulation circuit configured in a second power device, and a grounding grid, wherein the first power device and the second power device are connected by means of power lines, the first modulation circuit and the second modulation circuit are coupled to the grounding grid respectively by means of a first signal coupling device and a second signal coupling device, and a modulation signal coupled by the first modulation circuit is transmitted to the second modulation circuit by means of the power lines and the grounding grid. The grounding grid which does not transmit electric energy is used as a signal transmission channel, such that no large current is generated, thereby improving the reliability of signal transmission.

Classes IPC  ?

• H04B 3/54 - Systèmes de transmission par lignes de réseau de distribution d'énergie

Abrégé

Provided in the present application are a photovoltaic inverter and a rotary switch. The photovoltaic inverter comprises a rotary switch, wherein the rotary switch comprises a switch body; the switch body comprises an insulating housing and a plurality of pins; the ends of the plurality of pins extending to the outside of the insulating housing are connected to a circuit board; the rotary switch is a multi-pole switch; each pole of the rotary switch comprises two pins; and a groove or a boss is provided on the insulating housing between two pins of two adjacent poles located on the same side; alternatively, a surrounding rib surrounds the portion of each pin located between the insulating housing and the circuit board. On the basis of the solution, the creepage distance and the electrical clearance between the pins of two adjacent poles are increased, thereby ensuring the electrical stability and performance of the photovoltaic inverter and facilitating the miniaturization of the photovoltaic inverter and the rotary switch.

Classes IPC  ?

• H02M 7/00 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continuTransformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif
• H02M 7/42 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité
• H02S 40/32 - Composants électriques comprenant un onduleur CC/CA associé au module PV lui-même, p. ex. module CA
• H05K 5/02 - Enveloppes, coffrets ou tiroirs pour appareils électriques Détails

Abrégé

Provided in the present application are an electric power measurement and control apparatus, and a power generation system. The electric power measurement and control apparatus is applied to the power generation system. The power generation system comprises a plurality of power conversion devices and a switch device, wherein the switch device is used for controlling connection and disconnection between the power conversion devices and a power grid, and output ends of the power conversion devices are connected to the power grid by means of a grid connection point. The electric power measurement and control apparatus comprises a first chip and a second chip, wherein an electric power measurement and control function module of the first chip acquires electrical data of the grid connection point, and sends a first control signal to the power conversion devices and the switch device on the basis of the electrical data of the grid connection point; an SCADA function module and an EMS function module of the second chip acquire electrical data of the plurality of power conversion devices and electrical data of the switch device, and generate a second control signal on the basis of the electrical data of the plurality of power conversion devices, the electrical data of the switch device and the electrical data of the grid connection point; and the electric power measurement and control function module sends a third control signal to the power conversion devices and the switch device on the basis of the second control signal. By using the present application, the cost and complexity of a power generation system can be reduced.

Classes IPC  ?

• H02J 13/00 - Circuits pour pourvoir à l'indication à distance des conditions d'un réseau, p. ex. un enregistrement instantané des conditions d'ouverture ou de fermeture de chaque sectionneur du réseauCircuits pour pourvoir à la commande à distance des moyens de commutation dans un réseau de distribution d'énergie, p. ex. mise en ou hors circuit de consommateurs de courant par l'utilisation de signaux d'impulsion codés transmis par le réseau

Abrégé

The present application provides a photovoltaic inverter and a power conversion apparatus. The photovoltaic inverter comprises: a housing, a circuit board, a rotary switch, a photovoltaic connector, a signal connector, and an alternating-current connector, wherein the housing comprises a shell and a cover plate, the shell and the cover plate define an accommodating chamber, and the shell comprises a first side plate and a second side plate which are adjacent to each other; the circuit board is arranged in the accommodating chamber, and the rotary switch, the photovoltaic connector, the signal connector, and the alternating-current connector are all connected to the circuit board by means of rigid metal conductors; and the photovoltaic connector, the signal connector, and the alternating-current connector are installed on the first side plate, the signal connector is located between the photovoltaic connector and the alternating-current connector, and the rotary switch is installed on the second side plate. By directly connecting the rotary switch, the photovoltaic connector, the signal connector, the alternating-current connector and the like to the circuit board, the occupied space can be reduced, and the overall integration level is improved. In addition, the photovoltaic connector, the signal connector, and the alternating-current connector are arranged on the same side to facilitate installation and subsequent maintenance.

Classes IPC  ?

• H02M 7/00 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continuTransformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif
• H02M 7/42 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité
• H02K 5/02 - Enveloppes ou enceintes caractérisées par le matériau les constituant

Abrégé

Disclosed are a uniform-temperature battery cell, a battery pack and an energy storage system, relating to the field of energy, and aiming to improve the consistency of temperature of battery cells. The uniform-temperature battery cell comprises a casing; the casing comprises a bottom plate and at least one side plate, the bottom plate and the at least one side plate defining an accommodating space; the at least one side plate is provided with a plurality of heat pipes, each heat pipe extending to the bottom plate from the side plate; the plurality of heat pipes are arranged around the accommodating space, a phase-change working medium being provided in the heat pipes. In the present solution, when the uniform-temperature battery cell is charged or discharged, the phase-change working medium in the heat pipes oscillates and flows to transfer heat. Thus, the heat is continuously transferred to a low-temperature area of the casing from a high-temperature area of the casing, so as to remove local hot spots of the casing, thus ensuring the consistency of temperature of the battery cell, and solving the problems of uneven heat dissipation of the battery cell and poor consistency of temperature inside the battery cell.

Classes IPC  ?

• H01M 10/613 - Refroidissement ou maintien du froid

Abrégé

Provided in the present application are a vehicle, and an integrated driving-braking control apparatus and method for a vehicle, which are used for reducing driving and braking costs and the difficulty of arrangement in the vehicle. The vehicle comprises: a first electric motor brake and a second electric motor brake, which are arranged on a first side of the vehicle; a driving system, which is arranged on a second side of the vehicle and has an energy recovery function; and a control apparatus. The control apparatus is configured to control a left wheel of first-side wheels of the vehicle to be braked only by using the first electric motor brake, and control a right wheel of the first-side wheels of the vehicle to be braked only by using the second electric motor brake. The control apparatus is also configured to control a left wheel and a right wheel of second-side wheels of the vehicle to be braked only by using the driving system. The first side and the second side are a front side and a rear side, respectively.

Classes IPC  ?

• B60L 15/20 - Procédés, circuits ou dispositifs pour commander la propulsion des véhicules à traction électrique, p. ex. commande de la vitesse des moteurs de traction en vue de réaliser des performances désiréesAdaptation sur les véhicules à traction électrique de l'installation de commande à distance à partir d'un endroit fixe, de différents endroits du véhicule ou de différents véhicules d'un même train pour la commande du véhicule ou de son moteur en vue de réaliser des performances désirées, p. ex. vitesse, couple, variation programmée de la vitesse

Abrégé

The present application provides a power module and a manufacturing method therefor, and a power device. The power module comprises an integrated heat dissipation metal substrate, a chip, and a packaging member; the integrated heat dissipation metal substrate comprises a copper layer, a heat-conducting medium layer and a heat radiator; the copper layer, the heat-conducting medium layer and the heat radiator are stacked; the heat-conducting medium layer is connected between the copper layer and the heat radiator; the surface of the heat-conducting medium layer close to the copper layer is parallel to the surface of the heat-conducting medium layer close to the heat radiator; the chip is fixed on the side of the copper layer away from the heat radiator; and the packaging member is used for packaging the chip. In embodiments of the present application, by means of the integrated heat dissipation metal substrate, heat of the chip can be directly delivered from the chip to the integrated heat dissipation metal substrate, thereby reducing the thermal resistance on the heat dissipation path of the chip. In addition, according to the embodiments of the present application, the integrated heat dissipation metal substrate directly provide components and integrates the functions such as circuit connection, heat dissipation, and insulation, thereby omitting the assembly process of connection between a power device and a heat radiator.

Classes IPC  ?

• H01L 23/367 - Refroidissement facilité par la forme du dispositif
• H01L 23/373 - Refroidissement facilité par l'emploi de matériaux particuliers pour le dispositif
• H01L 23/473 - Dispositions pour le refroidissement, le chauffage, la ventilation ou la compensation de la température impliquant le transfert de chaleur par des fluides en circulation par une circulation de liquides
• H01L 23/488 - Dispositions pour conduire le courant électrique vers le ou hors du corps à l'état solide pendant son fonctionnement, p. ex. fils de connexion ou bornes formées de structures soudées
• H01L 23/31 - Encapsulations, p. ex. couches d’encapsulation, revêtements caractérisées par leur disposition
• H01L 21/60 - Fixation des fils de connexion ou d'autres pièces conductrices, devant servir à conduire le courant vers le ou hors du dispositif pendant son fonctionnement
• H01L 21/50 - Assemblage de dispositifs à semi-conducteurs en utilisant des procédés ou des appareils non couverts par l'un uniquement des groupes ou
• H01L 21/56 - Encapsulations, p. ex. couches d’encapsulation, revêtements
• H02M 7/00 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continuTransformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif
• H02M 1/00 - Détails d'appareils pour transformation
• H02M 7/42 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité

Abrégé

Provided are a photovoltaic connector (1300) and an inverter (1000). The photovoltaic connector (1300) comprises a box body (100), a cover body (300) and terminals (200), the box body (100) and the cover body (300) define a first accommodating cavity (130), the cover body (300) is provided with first recessed portions (340), the box body (100) is provided with first through holes (111), a portion of each terminal (200) is located in the first accommodating cavity (130), and a portion of the terminal (200) extends out of the first accommodating cavity (130) through the corresponding first through hole (111); the box body (100) is further provided with second recessed portions (150), and the first recessed portions (340) and the second recessed portions (150) define second through holes (1300a) in communication with the first accommodating cavity (130); the surface of the cover body (300) facing the box body (100) is provided with a first sealing member (400), the first sealing member (400) is connected to the box body (100), the first sealing member (400) comprises a first sealing body (410) and first wrapping portions (420) connected to each other, and the first wrapping portions (420) are arranged in the first recessed portions (340); the surface of the box body (100) facing the cover body (300) is provided with a second sealing member (500), and the second sealing member (500) is connected to the cover body (300); and the second sealing member (500) comprises a second sealing body (510) and second wrapping portions (520) connected to each other, the second wrapping portions (520) are arranged in the second recessed portions (150), and the first wrapping portions (420) and the second wrapping portions (520) define sealing structures for wrapping cables (600).

Classes IPC  ?

• H01R 13/52 - Boîtiers protégés contre la poussière, les projections, les éclaboussures, l'eau ou les flammes

Abrégé

An electric-motor controller (104), comprising an inverter circuit (120) and a control circuit (110), wherein the inverter circuit (120) comprises three switch tube bridge arms, two ends of each switch tube bridge arm being configured to receive power supplied from a traction battery (102), and the middle point of each switch tube bridge arm being configured to connect one of three phases of windings of an electric motor (130); in response to the absolute value of a torque demand indicated by a torque signal being greater than or equal to a preset torque value, the control circuit (110) controls the inverter circuit (120) to output a three-phase alternating current; and in response to the rotation speed of the electric motor (130) being less than a first rotation speed value or greater than a second rotation speed value and the absolute value of the torque demand indicated by the torque signal being less than the preset torque value, the control circuit (110) controls a plurality of switch tubes in the inverter circuit (120) to turn off. Further disclosed are an electric drive system and a vehicle (100). The electric-motor controller can achieve, without manual intervention, a torque output effect that meets a driver's driving intent, and can reduce the energy consumption of an electric motor, thus facilitating a reduction in the energy consumption of the whole vehicle, and prolonging the endurance of the whole vehicle.

Classes IPC  ?

• B60L 15/20 - Procédés, circuits ou dispositifs pour commander la propulsion des véhicules à traction électrique, p. ex. commande de la vitesse des moteurs de traction en vue de réaliser des performances désiréesAdaptation sur les véhicules à traction électrique de l'installation de commande à distance à partir d'un endroit fixe, de différents endroits du véhicule ou de différents véhicules d'un même train pour la commande du véhicule ou de son moteur en vue de réaliser des performances désirées, p. ex. vitesse, couple, variation programmée de la vitesse
• B60L 50/60 - Propulsion électrique par source d'énergie intérieure au véhicule utilisant de la puissance de propulsion fournie par des batteries ou des piles à combustible utilisant de l'énergie fournie par des batteries

Abrégé

The present application provides a pedal box integrated with dual sensors, a braking system, and a vehicle, so as to improve the working reliability of the pedal box, thereby improving the braking safety of the vehicle. The pedal box comprises a housing, a driving rod, pedal force feedback pieces, pressure sensors, and displacement sensors. The displacement sensors each comprises a moving component and a fixed component. The housing is configured to accommodate the moving components, the pedal force feedback pieces, and the pressure sensors; the pedal force feedback pieces and the pressure sensors along an axial direction of the driving rod are arranged in sequence inside the housing; and the housing is further configured to fix the fixed components, and in radial directions of the driving rod, the moving components are arranged between the pedal force feedback pieces and the fixed components.

Classes IPC  ?

• B60T 8/40 - Dispositions pour adapter la force de freinage sur la roue aux conditions propres au véhicule ou à l'état du sol, p. ex. par limitation ou variation de la force de freinage selon une condition de vitesse, p. ex. accélération ou décélération comportant un régulateur de pression fluidique répondant à une condition de vitesse comportant un circuit de fluide additionnel ayant des moyens de pressurisation du fluide pour modifier la pression du fluide de freinage, p. ex. comportant des pompes entraînées par les roues pour détecter une condition relative à la vitesse, ou des pompes commandées par des moyens indépendants du système de freinage
• B60T 13/74 - Transmission de l'action de freinage entre l'organe d'attaque et les organes terminaux d'action, avec puissance de freinage assistée ou relais de puissanceSystèmes de freins incorporant ces moyens de transmission, p. ex. systèmes de freinage à pression d'air avec entraînement ou assistance électrique

Abrégé

The present application relates to the technical field of energy, and provides an energy storage device, a photovoltaic-energy storage system, and a charging network. The energy storage device comprises a thermal management module, a battery module, a power module and a radiator module. The thermal management module comprises a housing, and a valve assembly, a first evaporator and a condenser which are arranged in the housing, wherein the housing comprises a plurality of coolant interfaces. Two coolant ports of the first evaporator are connected to the valve assembly, and two coolant ports of the condenser are connected between the valve assembly and one of the coolant interfaces. The battery module comprises a first heat exchange plate, the power module comprises a second heat exchange plate, the radiator module comprises a radiator, and the first heat exchange plate, the second heat exchange plate and the radiator are connected to the valve assembly by means of the corresponding coolant interfaces. The energy storage device can achieve efficient regulation and control of the temperature of a battery, thereby improving the operation reliability of the photovoltaic-energy storage system and the charging network using the energy storage device.

Classes IPC  ?

• H01M 10/613 - Refroidissement ou maintien du froid
• H01M 10/615 - Chauffage ou maintien de la chaleur
• H01M 10/627 - Installations fixes, p. ex. ensemble de production d’énergie tampon ou de production d’énergie de secours

Abrégé

The present application relates to the technical field of energy, and provides an energy storage device, an optical storage system, and a charging network in order to solve the technical problem of poor applicability of energy storage devices. The energy storage device provided by the present application comprises a thermal management module, a battery module, a heat dissipation module, and a compressor which are individually integrated. The thermal management module comprises a first heat exchanger, a first throttle valve, and a multi-way valve therein, and a housing of the thermal management module is provided with connection ports connected to the other modules. The multi-way valve in the thermal management module can switch passage and blockage states of different connection ports to change the circulation path of a cooling liquid. In the energy storage device provided by the present application, various different operational modes can be implemented. During deployment, different modules can be connected to form an efficient cooling liquid system, improving deployment flexibility and facilitating installation. In later stages, modules that require updates or iterations can be easily replaced, providing improved convenience.

Classes IPC  ?

• H01M 10/613 - Refroidissement ou maintien du froid

Abrégé

The present application provides an energy storage device, an optical storage system, and a charging network. The energy storage device comprises a first load, a second load, a thermal management module, a heat dissipation module, and a compressor. The thermal management module comprises a first heat exchanger and a valve assembly. The first heat exchanger of the thermal management module comprises a first heat exchange channel and a second heat exchange channel. The first heat exchange channel, a first heat exchange component, and a second heat exchange component are respectively connected to the valve assembly by means of different interfaces. A heat dissipation device in the heat dissipation module is connected to the valve assembly by means of a third pair of interfaces. The compressor and a second heat exchanger which are connected in series are connected in series with the second heat exchange channel by means of a fourth pair of interfaces. The valve assembly is provided with a plurality of valve ports which can switch to be connected or disconnected, so as to open or close the connection paths between the first heat exchange component, the second heat exchange component, the first heat exchange channel, and the heat dissipation device to form a plurality of heat exchange paths. The energy storage device can use different heat exchange modes to heat or cool a battery depending on different ambient temperatures.

Classes IPC  ?

• H01M 10/613 - Refroidissement ou maintien du froid
• H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries

Abrégé

Provided in the present application is a photovoltaic optimizer. The photovoltaic optimizer comprises: a cover body, a heat dissipation plate, a main board and an insulating support member, wherein the cover body is fixedly connected to the heat dissipation plate, and an accommodating cavity is formed between the cover body and the heat dissipation plate; the main board is located in the accommodating cavity; and the insulating support member is mounted between the main board and the heat dissipation plate, the insulating support member is configured to support the main board, and the insulating support member is provided with at least one annular boss or at least one annular groove on a side face thereof in a first direction, the first direction being perpendicular to the plane where the main board is located. In the photovoltaic optimizer provided in the embodiments of the present application, by means of providing the annular boss or the annular groove on the side face of the insulating support member on a creepage path, the creepage distance is increased, and the size of the whole photovoltaic optimizer or the sizes of components thereof are reduced under the condition that a creepage distance limit value is satisfied, thus reducing the amount of a potting adhesive used inside the photovoltaic optimizer, and reducing costs.

Classes IPC  ?

• H02S 40/34 - Composants électriques comprenant une connexion électrique structurellement associée au module PV, p. ex. boîtes de jonction
• H05K 5/02 - Enveloppes, coffrets ou tiroirs pour appareils électriques Détails
• H05K 5/03 - Couvercles ou capots
• H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage

Abrégé

The present application provides a thermal management system, an energy storage system, and a photovoltaic inverter system, capable of reducing difficulties in installation and maintenance. A cooling liquid circulation system comprises a cooling liquid flow channel plate and a plurality of cooling liquid end assemblies; a cooling liquid flow channel is integrated in the cooling liquid flow channel plate; and the cooling liquid flow channel is communicated with the plurality of cooling liquid end assemblies. A refrigerant circulation system comprises a refrigerant flow channel plate and a plurality of refrigerant end assemblies; a refrigerant flow channel is integrated in the refrigerant flow channel plate; and the refrigerant flow channel is communicated with the plurality of refrigerant end assemblies. The cooling liquid flow channel and the refrigerant flow channel are communicated with a heat exchange component, and the heat exchange component is used for heat exchange of a cooling liquid and a refrigerant. The cooling liquid flow channel plate and the refrigerant flow channel plate each are formed into a plate shape. The cooling liquid flow channel plate is attached and fixed to the refrigerant flow channel plate. The plurality of cooling liquid end assemblies are installed on the surface of the cooling liquid flow channel plate facing away from the refrigerant flow channel plate. The plurality of refrigerant end assemblies and the heat exchange component are installed on the surface of the refrigerant flow channel plate facing away from the cooling liquid flow channel plate.

Classes IPC  ?

• H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage

Abrégé

The present application relates to the technical field of motor controllers, and in particular to a motor controller and a powertrain. The motor controller comprises a liquid-cooling heat-dissipation device and an integrated assembly. The liquid-cooling heat-dissipation device is used for cooling a plurality of power modules, the power modules each comprising at least one power tube; and the integrated assembly comprises an integrated housing and a capacitor core, the integrated housing being used for accommodating the capacitor core. The integrated housing comprises two coolant through holes, the two coolant through holes being respectively configured to be connected to the liquid-cooling heat-dissipation device. In a first direction, the liquid-cooling heat-dissipation device and the integrated housing are stacked, and the coolant through holes each pass through the integrated housing. In a second direction, the gap between the two coolant through holes is less than the length of the liquid-cooling heat-dissipation device. In a third direction, the diameter of each coolant through hole is less than the width of the liquid-cooling heat-dissipation device. The motor controller of the present application has a compact layout and occupies a small space.

Classes IPC  ?

• H05K 7/14 - Montage de la structure de support dans l'enveloppe, sur cadre ou sur bâti
• B60L 15/20 - Procédés, circuits ou dispositifs pour commander la propulsion des véhicules à traction électrique, p. ex. commande de la vitesse des moteurs de traction en vue de réaliser des performances désiréesAdaptation sur les véhicules à traction électrique de l'installation de commande à distance à partir d'un endroit fixe, de différents endroits du véhicule ou de différents véhicules d'un même train pour la commande du véhicule ou de son moteur en vue de réaliser des performances désirées, p. ex. vitesse, couple, variation programmée de la vitesse
• H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage

Abrégé

Provided in the embodiments of the present application are an integrated assembly, a motor controller and a powertrain. The integrated assembly comprises an integrated housing and a capacitor core body, the integrated housing being used for accommodating the capacitor core body; the integrated housing comprises a first side and a second side which are opposite in a first direction, the first side comprising two rows of fixing columns and two rows of support columns, each row of fixing columns comprising a plurality of fixing columns, and each row of support columns comprising a plurality of support columns. In a second direction, the plurality of fixing columns in each row of fixing columns are arranged at intervals, and the plurality of support columns in each row of support columns are arranged at intervals. In a third direction, the two rows of support columns are arranged in a spaced manner, and the two rows of fixing columns are arranged in a spaced manner between the two rows of support columns. The integrated assembly provided by the present application has a high integration level and high compactness, thus reducing parts of motor controllers, and reducing the size of motor controllers.

Classes IPC  ?

• H05K 5/02 - Enveloppes, coffrets ou tiroirs pour appareils électriques Détails

Abrégé

The present application provides a liquid cooling system, an energy storage device, an energy storage system, and a charging network. The liquid cooling system comprises a refrigerant loop, and the liquid cooling system further comprises a thermal management module, a heat dissipation module, and a fluorine pump module. The thermal management module comprises two liquid cooling connectors and two refrigeration connectors; a first working medium circulates between the two liquid cooling connectors; a second working medium circulates between the two refrigeration connectors; the two liquid cooling connectors are configured to be connected to a battery module; and the two refrigeration connectors are connected in series to the refrigerant loop. The heat dissipation module comprises two heat dissipation connectors, and the two heat dissipation connectors are connected in series to the refrigerant loop. The fluorine pump module comprises two fluorine pump connectors; the two fluorine pump connectors are connected in series to the refrigerant loop; and the fluorine pump module is connected between the thermal management module and the heat dissipation module. By means of the modular structure design of a modular liquid cooling system, efficient and energy-saving thermal management can be performed on an energy storage device.

Classes IPC  ?

• H01M 10/613 - Refroidissement ou maintien du froid

Abrégé

Provided are an immersion liquid cooling apparatus and an energy storage device. The immersion liquid cooling apparatus comprises a bottom plate, a top plate, and a plurality of side plates. The bottom plate and the top plate are spaced apart in a first direction, and the plurality of side plates, the bottom plate, and the top plate surround and define a sealed accommodation space. A first flow channel is arranged inside the bottom plate, a plurality of first through-holes are provided on a side of the bottom plate facing the top plate in the first direction, and the first through-holes communicate the first flow channel with the accommodation space. The side of the bottom plate facing the top plate in the first direction is provided with at least one arrangement region, and the first through-holes and the arrangement region are disposed in an offset manner. A second flow channel is arranged inside the top plate, a plurality of second through-holes are provided on a side of the top plate facing the bottom plate in the first direction, and the second through-holes communicate the second flow channel with the accommodation space. A fluid in the flow channels flushes an energy storage module from below or above via the through-holes to perform convective heat exchange with the energy storage module. The overall structure of the apparatus is simple, the layout space of the energy storage module is large, and the energy density of the energy storage device is high.

Classes IPC  ?

• H01M 10/613 - Refroidissement ou maintien du froid

Abrégé

Disclosed are a motor controller (11) for an electric vehicle (01), a powertrain (10) and a control method for controlling a driving motor. The powertrain comprises the motor controller and a driving motor (12). The motor controller is used for receiving a torque signal and controlling the driving motor to output a torque; and, in response to a reduction rate of the rotating speed of the driving motor being less than a preset rate and the rotating speed of the driving motor being less than a preset value, the motor controller is used for controlling the driving motor to output a second positive torque. Thus, under the action of the second positive torque, the braking speed or deceleration of a vehicle can be accurately adjusted, mitigating the trend of forward movement of the center of mass of the vehicle during braking and shaking of the vehicle after being stopped, thus improving the comfort of vehicles during braking.

Classes IPC  ?

• B60L 15/20 - Procédés, circuits ou dispositifs pour commander la propulsion des véhicules à traction électrique, p. ex. commande de la vitesse des moteurs de traction en vue de réaliser des performances désiréesAdaptation sur les véhicules à traction électrique de l'installation de commande à distance à partir d'un endroit fixe, de différents endroits du véhicule ou de différents véhicules d'un même train pour la commande du véhicule ou de son moteur en vue de réaliser des performances désirées, p. ex. vitesse, couple, variation programmée de la vitesse

Abrégé

The present application provides a power module with a liquid-cooling radiator, a motor controller, a powertrain, and a vehicle. The power module comprises a substrate, a liquid-cooling radiator, and a sealing member; the substrate is used for fixing a power switching transistor; the liquid-cooling radiator comprises a groove structure, the groove structure comprises a bottom plate and a side plate, and the bottom plate and the substrate are spaced apart in the thickness direction of the substrate; the sealing member is used for fixing the peripheral side surface of the substrate and the end surface of the side plate facing away from the bottom plate, and the material of the sealing member is different from the material of the substrate. The side plate and the substrate are connected by means of the sealing member, so that the connection stability between the substrate and the side plate is improved, and the structural strength of the power module is enhanced. According to the present application, when the side plate, the sealing member, and the substrate are fixed, the installation area for installing other devices in the substrate is not occupied, so that more devices for cooling and heat dissipation are additionally arranged in the power module, and the contact area between the substrate and a cooling liquid is enlarged, thereby improving the cooling efficiency of the power module and the motor controller.

Classes IPC  ?

• H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage

Abrégé

Disclosed in embodiments of the present application are a thermal management device and an energy storage system, which can increase the space utilization rate of the thermal management device and reduce the size of the thermal management device. The thermal management device comprises a cabinet, fans, a first heat dissipation module, and a second heat dissipation module; the fans are arranged on the top surface of the cabinet; the first heat dissipation module and the second heat dissipation module are both of a plate-shaped structure; the included angle between the first heat dissipation module and the top surface is unequal to the included angle between the second heat dissipation module and the top surface; and the distance between the end of the first heat dissipation module close to the top surface and the end of the second heat dissipation module close to the top surface is greater than the distance between the end of the first heat dissipation module distant from the top surface and the end of the second heat dissipation module distant from the top surface.

Classes IPC  ?

• H01M 10/6563 - Gaz avec circulation forcée, p. ex. par des soufflantes
• H01M 10/6567 - Liquides
• H01M 10/6554 - Barres ou plaques

Abrégé

The present application relates to the technical field of energy. Provided are a power conversion device and a photovoltaic system, which aim to solve the technical problem of poor heat dissipation effects of power conversion devices. The power conversion device provided by the present application comprises a circuit board, a power module and a heat sink; the heat sink comprises an evaporator and condensation fins; the evaporator comprises an evaporation chamber, a first side wall and a second side wall, the first side wall and the second side wall being oppositely arranged, and the evaporation chamber being located between the first side wall and the second side wall; the evaporation chamber is internally provided with heat-conducting ribs, one end of each heat-conducting rib being connected to the first side wall, and the other end being connected to the second side wall; each condensation fin has a condensation channel inside, the first end of each condensation fin being connected to the outer surface of the second side wall, and the condensation channels being communicated with the evaporation chamber; and a refrigerant can circulate inside a path consisting of the evaporation chamber and the condensation channels. The power conversion device provided by the present application can dissipate heat from power modules by means of refrigerants and a heat transfer mode, thus offering better heat dissipation performance.

Classes IPC  ?

• H02S 40/32 - Composants électriques comprenant un onduleur CC/CA associé au module PV lui-même, p. ex. module CA

Abrégé

The present application provides a battery pack, comprising a plurality of battery cells and a box. An explosion-proof valve and a flow guide cover are arranged on the outer wall of the box; the flow guide cover is fixedly connected to the outer wall; the flow guide cover covers the periphery of the explosion-proof valve; one or more air vents are formed in the flow guide cover; and the range of the included angle A between an opening direction of at least one of the one or more air vents and the outer wall is 0°≤A<90°. The flow guide cover plays a role in speed reduction and cooling of high-temperature gas, dust, and electrolyte which are released by the battery pack, so that the released high-temperature gas is prevented from impacting the surrounding environment.

Classes IPC  ?

• H01M 50/358 - Passages externes d’évacuation des gaz sur le couvercle ou sur le boîtier de batterie

Abrégé

The present application provides an inverter and a wave-transmitting control method. The inverter comprises: a primary side circuit, a transformer, a secondary side circuit, and a controller. The controller is configured to: in response to an absolute value of an alternating-current voltage outputted by a filter circuit changing from a value greater than an absolute value of a preset voltage threshold value to a value less than or equal to the absolute value of the preset voltage threshold value, control the inverter to switch from a first working mode to a second working mode, so that among four switch transistors comprised in a bridge arm, at least one switch transistor is turned on, and at most three switch transistors are turned on. The solution provided by the present application can ensure that a follow current path is present in a current of a secondary side winding of the transformer, and avoid the occurrence of shoot through of a secondary side switch transistor, thereby eliminating the risk of damage to the switch transistors caused by inaccurate polarity judgment of the alternating-current voltage.

Classes IPC  ?

• H02M 7/5387 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs, p. ex. onduleurs à impulsions à un seul commutateur dans une configuration en pont
• H02M 1/38 - Moyens pour empêcher la conduction simultanée de commutateurs
• H02M 1/088 - Circuits spécialement adaptés à la production d'une tension de commande pour les dispositifs à semi-conducteurs incorporés dans des convertisseurs statiques pour la commande simultanée de dispositifs à semi-conducteurs connectés en série ou en parallèle
• H02M 1/32 - Moyens pour protéger les convertisseurs autrement que par mise hors circuit automatique

Abrégé

The present application relates to the technical field of energy, and aims to solve the technical problem of a poor heat dissipation effect of an inverter. Provided in the present application are an inverter and a heat sink. The inverter provided in the present application comprises a circuit board, a power module and a heat sink. The heat sink comprises an evaporator, a condenser and a cooling medium, wherein the evaporator is in heat conduction connection with the power module; an evaporation chamber is formed in the evaporator; and the condenser is provided with a condensation channel and an airflow channel, the condensation channel being provided with a first port and a second port, which are provided away from each other, an exhaust port being in communication with the first port, a liquid return port being in communication with the second port, and the condensation channel being parallel to the airflow channel. In the inverter provided in the present application, the temperature of the evaporator can be reduced by means of endothermic gasification of the liquid cooling medium in the evaporator, thereby improving the heat transfer efficiency between the power module and the evaporator; and the airflow channel is parallel to the condensation channel, such that the improvement in the heat exchange efficiency between air and the cooling medium is facilitated, thereby improving the heat dissipation performance of the heat sink.

Classes IPC  ?

• H02M 7/00 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continuTransformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif

Abrégé

Provided in the present application is a photovoltaic power generation system, comprising an inverter, a data collector, a first bus, a first trap, a second bus and a first switch, wherein the first bus is connected to one end of the first trap, and the second bus is connected to the other end of the first trap; the second bus is used for connecting to a load, and the first bus is connected to the inverter and the data collector; the inverter and the data collector perform communication by means of a PLC signal coupled to the first bus; and the first switch is connected in parallel at the two ends of the first trap. Thus, a trap can be switched between bypass and normal operation by means of the switching-on and switching-off of a first switch. Interference of noise from a load with PLC signal transmission between an inverter and a data collector can be reduced while PLC signal transmission between the data collector and the load is not affected.

Classes IPC  ?

• H02J 13/00 - Circuits pour pourvoir à l'indication à distance des conditions d'un réseau, p. ex. un enregistrement instantané des conditions d'ouverture ou de fermeture de chaque sectionneur du réseauCircuits pour pourvoir à la commande à distance des moyens de commutation dans un réseau de distribution d'énergie, p. ex. mise en ou hors circuit de consommateurs de courant par l'utilisation de signaux d'impulsion codés transmis par le réseau

Abrégé

Provided in the present application are a circuit breaker and a power apparatus. The circuit breaker comprises an upper housing, a lower housing and a bus bar. The upper housing comprises a piston cavity, wherein a piston is accommodated in the piston cavity, and the piston moves after being subjected to force to cut off the bus bar. The lower housing comprises an arc-extinguishing cavity, wherein an arc-extinguishing grid is accommodated in the arc-extinguishing cavity. The circuit breaker further comprises at least one air chamber and an air channel, wherein the air chamber is arranged on the upper housing and/or the lower housing, one end of the air channel is in communication with the arc-extinguishing cavity, the other end of the air channel is in communication with the air chamber, a first gap is provided between the arc-extinguishing grid and a first side wall of the lower housing, and the air channel comprises the first gap. Thus, high-temperature and high-pressure gas generated due to arc extinguishing in the lower housing can be guided to the air chamber for cooling, thereby reducing potential safety hazards. Moreover, compared with the way of directly discharging the high-temperature and high-pressure gas to the outside, other devices in the power apparatus cannot be damaged.

Classes IPC  ?

• H01H 73/18 - Moyens pour éteindre ou supprimer un arc
• H01H 9/34 - Éléments fixes pour restreindre ou sous-diviser l'arc, p. ex. plaques-barrières
• H01H 9/52 - Refroidissement d'organes de l'interrupteur

Abrégé

Provided in the present application are an electro-mechanical brake device having a ring-shaped pressure sensor, and a vehicle. The electro-mechanical brake device comprises a ring-shaped pressure sensor, a brake motor, and a brake, wherein the brake motor is used, by means of a plurality of transmission assemblies, for driving the brake to move a friction pad. The brake comprises a housing and at least one limiting member, the housing being used for fixing the ring-shaped pressure sensor and the at least one limiting member. In the axial direction of the ring-shaped pressure sensor, one transmission assembly passes through the ring-shaped pressure sensor and the housing; in the circumferential direction of the ring-shaped pressure sensor, each limiting member is arranged between the housing and the ring-shaped pressure sensor. In the electro-mechanical brake device of the present application, by means of mounting a ring-shaped pressure sensor on the outer side of one transmission assembly and positioning same in the circumferential direction, it is ensured that the ring-shaped pressure sensor has a stable orientation and enables reliable measurement of a braking force.

Classes IPC  ?

• B60T 13/74 - Transmission de l'action de freinage entre l'organe d'attaque et les organes terminaux d'action, avec puissance de freinage assistée ou relais de puissanceSystèmes de freins incorporant ces moyens de transmission, p. ex. systèmes de freinage à pression d'air avec entraînement ou assistance électrique
• B60T 17/22 - Dispositifs pour surveiller ou vérifier les systèmes de freinsDispositifs de signalisation
• B60T 17/00 - Éléments, parties constitutives ou accessoires des systèmes de freins non couverts par les groupes , ou , ou présentant d'autres caractéristiques intéressantes

Abrégé

The present application provides an electro-mechanical brake apparatus having mounting surfaces matched for line outgoing, and a vehicle. The electro-mechanical brake apparatus comprises a housing of a driver and a housing of a brake. A transmission assembly of the brake drives at least one friction plate. The housing of the driver and the housing of the brake each comprises a mounting surface. The two mounting surfaces are configured to be mutually fixedly connected and each mounting surface comprises a through hole. The through holes are configured to receive a transmission connecting member. The transmission connecting member is configured to connect a transmission assembly of the driver and a transmission assembly of the brake. At least one mounting surface comprises at least one recess. The at least one recess is configured to receive at least one signal transmission line. The at least one signal transmission line is configured to electrically connect to a circuit component received in at least one of the housing of the driver or the housing of the brake. According to the electro-mechanical brake apparatus of the present application, a matching gap between the mounting surfaces of the housings are used for line outgoing, so as to facilitate the layout of the signal transmission line and reduce the overall volume of the electro-mechanical brake apparatus.

Classes IPC  ?

• B60T 13/74 - Transmission de l'action de freinage entre l'organe d'attaque et les organes terminaux d'action, avec puissance de freinage assistée ou relais de puissanceSystèmes de freins incorporant ces moyens de transmission, p. ex. systèmes de freinage à pression d'air avec entraînement ou assistance électrique
• B60T 17/00 - Éléments, parties constitutives ou accessoires des systèmes de freins non couverts par les groupes , ou , ou présentant d'autres caractéristiques intéressantes
• B60R 16/02 - Circuits électriques ou circuits de fluides spécialement adaptés aux véhicules et non prévus ailleursAgencement des éléments des circuits électriques ou des circuits de fluides spécialement adapté aux véhicules et non prévu ailleurs électriques

Abrégé

Provided in the present application is a circuit breaker, which applies to arc quenching for high-voltage arcs. In the circuit breaker, a current passage busbar for current transmission is provided between an upper shell and a lower shell; the current passage busbar can be cut off by means of movement of a piston accommodated in the upper shell. The piston comprises a first insulating portion, which extends in the direction of movement of the piston. The lower shell comprises an arc-quenching chamber, a second insulating portion and arc chutes. The second insulating portion extends in the direction of movement of the piston, and when the piston moves, an insulating clearance is formed between the first insulating portion and the second insulating portion. Each arc chute is provided with a first arc guide structure and a second arc guide structure, the first arc guide structure extending towards the current passage busbar, and the second arc guide structure extending towards an opening of the insulating clearance. Thus, the arc length can be increased, leading to an increase in the arc voltage, enabling the circuit breaker to be effectively applied to a high-voltage circuit.

Classes IPC  ?

• H01H 73/18 - Moyens pour éteindre ou supprimer un arc
• H01H 9/34 - Éléments fixes pour restreindre ou sous-diviser l'arc, p. ex. plaques-barrières

Abrégé

Provided in the present application are an electro-mechanical brake of a split type caliper body and a vehicle. The electro-mechanical brake comprises a driver and a brake. The driver comprises a brake electric motor and a speed reducer. The brake comprises a caliper body and a transmission assembly. The brake electric motor is configured to drive the transmission assembly by means of the speed reducer. The transmission assembly is configured to drive a friction plate. The caliper body comprises a body and an end cover. The body comprises an accommodating cavity, wherein the accommodating cavity is configured to accommodate the transmission assembly, and the end cover is configured to shield the accommodating cavity. In an axial direction of the brake electric motor, a transmission member between the speed reducer and the transmission assembly passes through the end cover, and the brake electric motor, the end cover and the transmission assembly are arranged on the same side of the speed reducer. In the electro-mechanical brake provided in the present application, the caliper body is split into the end cover and the body, so that the machining difficulty of the caliper body is reduced, and the overall precision and rigidity are guaranteed.

Classes IPC  ?

• F16D 65/092 - Bandes, sabots ou patinsPivots ou leurs organes de support pour freins à engagement axial, p. ex. freins à disques
• F16D 65/095 - Pivots ou leurs organes de support
• F16D 65/18 - Mécanismes d'actionnement pour freinsMoyens pour amorcer l'opération de freinage à une position prédéterminée disposés dans, ou sur le frein adaptés pour rapprocher les organes par traction
• F16D 55/225 - Freins à surfaces de freinage substantiellement radiales pressées l'une contre l'autre dans une direction axiale, p. ex. freins à disques avec disques ou patins déplaçables selon l'axe pressés contre des organes en rotation situés dans l'axe par serrage entre des organes mobiles de freinage, p. ex. des disques ou des patins de freins mobiles avec un organe d'actionnement commun pour les organes de freinage les organes de freinage étant des patins de freins

Abrégé

The present application provides a caliper body-biased electro-mechanical brake, a system, and a vehicle. The electro-mechanical brake comprises a caliper body, a reducer, and a friction plate. The caliper body is used to connect a caliper frame and the reducer. The reducer is used to drive, by means of a plurality of transmission members, the friction plate to be displaced. The caliper body comprises a clearance hole and two sliding pin accommodating holes. The clearance hole is used to provide clearance for a transmission member between the reducer and the friction plate. The two sliding pin accommodating holes are each used to accommodate a sliding pin of the caliper frame. Along an axial direction of each sliding pin accommodating hole, the reducer and the friction plate are arranged opposite to each other, an extension direction of the sliding pin accommodating hole faces the reducer, and an opening direction of the sliding pin accommodating hole faces away from the reducer. In the electro-mechanical brake of the present application, by means of changing the opening direction of the sliding pin accommodating holes in the caliper body used for accommodating the sliding pins so as to match a center-of-gravity offset of the electro-mechanical brake, stress conditions of the sliding pins are alleviated so as to reduce friction and improve braking efficiency.

Classes IPC  ?

• F16D 65/092 - Bandes, sabots ou patinsPivots ou leurs organes de support pour freins à engagement axial, p. ex. freins à disques
• F16D 65/18 - Mécanismes d'actionnement pour freinsMoyens pour amorcer l'opération de freinage à une position prédéterminée disposés dans, ou sur le frein adaptés pour rapprocher les organes par traction

Abrégé

The present application relates to the technical field of motor controllers, and in particular to a motor controller, a powertrain, and a vehicle. The motor controller comprises a circuit board, a plurality of power modules, a middle partition plate, two cooling liquid pipes, and a capacitor module; each power module comprises at least one power tube; the circuit board is used for controlling the on and off of each power tube; the middle partition plate comprises an internal flow channel and two flow channel openings; the two cooling liquid pipes are communicated with the internal flow channel by means of the two flow channel openings, respectively; in a first direction, the plurality of power modules are arranged between the circuit board and the middle partition plate, the middle partition plate and the capacitor module are stacked, the middle partition plate comprises two side surfaces disposed opposite to each other, and the two flow channel openings are disposed spaced part in one side surface of the middle partition plate; and in a second direction, the power modules or the capacitor module is arranged between the two cooling liquid pipes. The middle partition plate in the motor controller provided by the present application integrates the functions of heat dissipation and power module installation, so that the motor controller has a compact structure and a high integration level.

Classes IPC  ?

• H02P 27/08 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p. ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs avec modulation de largeur d'impulsions
• H02M 7/00 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continuTransformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif
• H02K 7/20 - Association structurelle à des machines dynamo-électriques auxiliaires, p. ex. à des moteurs électriques de lancement ou des excitatrices

Abrégé

Provided in the present application are a remote radio apparatus and a base station. The remote radio apparatus comprises at least one first voltage conversion unit, at least one second voltage conversion unit and a radio frequency power amplification circuit; each first voltage conversion unit is used for converting an input negative voltage into a positive voltage; each second voltage conversion unit is used for converting a voltage outputted by the first voltage conversion unit; each first voltage conversion unit comprises a plurality of output ends, each output end being correspondingly connected to a different power conversion circuit in the first voltage conversion unit; and at least one output end of the first voltage conversion unit is connected to the radio frequency power amplification circuit via the second voltage conversion unit. Each power conversion circuit in each first voltage conversion unit can be independently shut down, so that the number of the power conversion circuits that need to operate can be flexibly configured on the basis of requirements of radio frequency power amplification circuits, thus reducing the energy loss.

Classes IPC  ?

• H04B 10/2575 - Radio sur fibre, p. ex. signal radio modulé en fréquence sur une porteuse optique

Abrégé

Provided are a power converter and a control method therefor. The power converter comprises a power conversion circuit, an output inductor and a controller, wherein each of an upper half-bridge arm and a lower half-bridge arm which are comprised in the power conversion circuit comprises at least two switch tubes; the controller is configured to generate a carrier and a modulation wave, and to generate, on the basis of the carrier and the modulation wave, a control signal for controlling the switch tubes of the upper half-bridge arm and the switch tubes of the lower half-bridge arm; the controller is further configured to control, when the carrier is in a zero-crossing point area, the switch tubes of the upper half-bridge arm to keep an on-off switching state unchanged and keep the switch tubes of the lower half-bridge arm inactive when the carrier is in the zero-crossing point area, and to control the switch tubes of the upper half-bridge arm to perform on-off switching at the moment when the carrier enters the zero-crossing point area; alternatively, the controller is configured to control the switch tubes of the lower half-bridge arm to keep the on-off switching state unchanged and keep the switch tubes of the upper half-bridge arm inactive when the carrier is in the zero-crossing point area, and to control the switch tubes of the lower half-bridge arm to perform on-off switching at the moment when the carrier enters the zero crossing point area, thereby reducing the stress on the switch tubes.

Classes IPC  ?

• H02M 7/487 - Onduleurs bloqués au point neutre
• H02M 1/38 - Moyens pour empêcher la conduction simultanée de commutateurs
• H02M 7/5387 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs, p. ex. onduleurs à impulsions à un seul commutateur dans une configuration en pont

Abrégé

The present application discloses a motor controller, a powertrain, and a vehicle. The motor controller is applied to a driving motor, and the motor controller comprises a control device and an inverter circuit; the control device is used for receiving a brake signal of a vehicle, a rotational speed signal of the driving motor and a torque signal of the driving motor; the control device is further used for: in response to the rotational speed indicated by the rotational speed signal being greater than zero and less than a preset rotational speed, determining that a vehicle is almost in a stopped state and thus has a parking demand, and in response to the brake signal indicating that the brake force is equal to zero and the torque indicated by the torque signal being equal to zero, outputting a first control signal to avoid conflict with an operation mode intended by a driver, wherein the first control signal is used for controlling the rotational speed of the motor to decrease to achieve parking. According to the present application, vehicle information can be automatically determined in the motor controller to control the rotational speed of the motor, and therefore, the control path is shorter, and the response speed is faster, allowing for quick and accurate parking.

Classes IPC  ?

• B60L 15/20 - Procédés, circuits ou dispositifs pour commander la propulsion des véhicules à traction électrique, p. ex. commande de la vitesse des moteurs de traction en vue de réaliser des performances désiréesAdaptation sur les véhicules à traction électrique de l'installation de commande à distance à partir d'un endroit fixe, de différents endroits du véhicule ou de différents véhicules d'un même train pour la commande du véhicule ou de son moteur en vue de réaliser des performances désirées, p. ex. vitesse, couple, variation programmée de la vitesse

Abrégé

The present application provides a battery pack, an energy storage device and an energy storage system. The energy storage device comprises a plurality of stacked battery packs. One contact surface among two contact surfaces of every two adjacent battery packs is protrudingly provided with a protection member and a first connector, and the other contact surface is provided with a recess and a second connector, the second connector being located in the recess, the protection member being pluggably connected to the recess, and the first connector being pluggably connected to the second connector. The energy storage device can achieve accurate alignment of battery packs, thus greatly reducing assembling processes and assembling time for users to install the energy storage device, and greatly increasing assembling efficiency of the energy storage device.

Classes IPC  ?

• H01M 50/289 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports caractérisés par des éléments d’espacement ou des moyens de positionnement dans les racks, les cadres ou les blocs

Abrégé

Provided are a battery pack and an energy storage system. The battery pack comprises a battery bank, a DC/DC converter, a controller and a voltage-stabilizing circuit, wherein the voltage-stabilizing circuit comprises a resistor, a capacitor, a first switch and a second switch; a positive-electrode port of the DC/DC converter and one end of the capacitor are connected to a positive electrode of the battery bank by means of the first switch, a negative-electrode port of the DC/DC converter and the other end of the capacitor are connected to a negative electrode of the battery bank by means of the resistor, and the negative-electrode port and the other end of the battery-side capacitor are connected to the negative electrode of the battery bank by means of the second switch; and the controller is used for controlling the turn-on of the first switch, controlling the turn-on of the second switch after a preset condition is met, and controlling the DC/DC converter, and a voltage across the two ends of the capacitor when the preset condition is met is greater than a voltage across the two ends of the capacitor when the preset condition is not met. Thus, a second switch is turned on after a preset condition is met, such that a control delay of a DC/DC converter can be reduced.

Classes IPC  ?

• H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries
• H01M 10/42 - Procédés ou dispositions pour assurer le fonctionnement ou l'entretien des éléments secondaires ou des demi-éléments secondaires

Abrégé

Provided in the present application are a motor controller and a powertrain. The motor controller comprises an inverter circuit, the inverter circuit comprising three-phase switching transistor bridge arms; the bridge arm midpoint of each switching transistor bridge arm is used for connecting to a winding of a phase of a driving motor, and the bridge arm midpoints of the three-phase switching transistor bridge arms of the inverter circuit are used for outputting a three-phase current to the windings of the driving motor, the frequencies of the current of each phase of the three-phase current being different from each other in any two adjacent periods. Since the frequencies of the current of each phase are different from each other in any two adjacent periods, the frequencies of the current of each phase flowing through the windings of the driving motor are different from each other, such that vibration frequencies generated by each winding under the action of the phase current are different from each other. Thus, noise energy generated by vibration can be dispersed within a relatively wide frequency range, thus reducing noise generated by heating a power battery so as to provide better user experience.

Classes IPC  ?

• H02P 21/22 - Commande du courant, p. ex. en utilisant une boucle de commande
• H01M 10/615 - Chauffage ou maintien de la chaleur

Abrégé

The present application provides a motor, a powertrain and an electric vehicle. The motor comprises a rotor and a motor shaft, and the rotor comprises a plurality of laminations which are sequentially arranged in the axial direction of the motor. The motor shaft passes through a center hole of each lamination, the motor shaft comprises two groups of internal radial flow channels distributed at intervals in the circumferential direction of the motor and an internal axial flow channel which are communicated with each other, and each group of internal radial flow channels comprises a plurality of internal radial flow channels distributed at intervals in the circumferential direction of the motor. Two groups of radial gaps distributed at intervals in the circumferential direction of the motor are present between the plurality of laminations and the peripheral surface of the motor shaft, the two groups of radial gaps are not communicated in the axial direction of the motor, each group of radial gaps comprises a plurality of radial gaps, the plurality of radial gaps of each group of radial gaps are distributed at intervals in the circumferential direction of the motor, and each group of radial gaps is used for communicating with one group of internal radial flow channels. After being injected into the internal axial flow channel, a liquid coolant is distributed to cool the laminations, so that the circumferential temperature distribution of the laminations is uniform, local hot spots are avoided, and the heat dissipation effect of the motor is improved.

Classes IPC  ?

• H02K 9/19 - Dispositions de refroidissement ou de ventilation pour machines avec enveloppe fermée et circuit fermé de refroidissement utilisant un agent de refroidissement liquide, p. ex. de l'huile
• H02K 5/20 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction avec des canaux ou des conduits pour la circulation d'un agent de refroidissement
• H02K 1/32 - Parties tournantes du circuit magnétique avec des canaux ou des conduits pour l'écoulement d'un agent de refroidissement
• H02K 7/10 - Association structurelle avec des embrayages, des freins, des engrenages, des poulies ou des démarreurs mécaniques

Abrégé

The disclosure relates to a super junction semiconductor device 100 with monolithically integrated trench-gate and planar-gate. The super junction semiconductor device comprises: a substrate (1); a drift layer (3) formed above the substrate (1); a vertical channel section (4, 7, 8, 9) formed above the drift layer (3), the vertical channel section (4, 7, 8, 9) comprising a current spreading layer (4), a body-body separation region (7), a mesa body region (8) and a mesa source region (9); a planar channel section (4, 5, 6) formed above the drift layer (3) and below a trench (111) that is formed on both sides of the vertical channel section (4, 7, 8, 9), the planar channel section (4, 5, 6) comprising a layer stack of the current spreading layer (4), a trench body region (5) and a trench source region (6); and a pillar region (11) formed in the drift layer (3) below the trench body region (5), the pillar region (11) and the drift layer (3) forming a super junction (120).

Classes IPC  ?

• H01L 29/06 - Corps semi-conducteurs caractérisés par les formes, les dimensions relatives, ou les dispositions des régions semi-conductrices
• H01L 29/78 - Transistors à effet de champ l'effet de champ étant produit par une porte isolée
• H01L 29/423 - Electrodes caractérisées par leur forme, leurs dimensions relatives ou leur disposition relative ne transportant pas le courant à redresser, à amplifier ou à commuter
• H01L 29/66 - Types de dispositifs semi-conducteurs

Abrégé

The present application provides a photovoltaic optimizer and a photovoltaic power generation system. The photovoltaic optimizer comprises a housing, a printed circuit board module, and a cover part. The cover part is used for covering the housing to form an accommodating cavity, and the accommodating cavity is used for accommodating the printed circuit board module. The housing comprises a lug, a heat dissipation plate, and a connecting plate; the printed circuit board module is arranged on the surface of the heat dissipation plate close to the cover part; the connecting plate is used for connecting the lug and the heat dissipation plate; and the lug and the heat dissipation plate are respectively located at two opposite ends of the connecting plate, so that the heat dissipation plate and the lug are not located on a same plane. The lug for mounting the photovoltaic optimizer and a heat dissipation part in the photovoltaic optimizer are integrally designed, thereby simplifying the structure and assembly of the photovoltaic optimizer, and reducing the cost. Furthermore, the cost of the photovoltaic power generation system is reduced.

Classes IPC  ?

• H02M 1/00 - Détails d'appareils pour transformation
• H02S 40/34 - Composants électriques comprenant une connexion électrique structurellement associée au module PV, p. ex. boîtes de jonction
• H02K 7/20 - Association structurelle à des machines dynamo-électriques auxiliaires, p. ex. à des moteurs électriques de lancement ou des excitatrices

Abrégé

A method for pulse heating of a power battery (13) of an electric vehicle (10), and an electric vehicle (10). The electric vehicle (10) comprises a plurality of electric motors (11) and a plurality of three-phase bridge arms (12), wherein a bridge arm midpoint of each three-phase bridge arm (12) is used for connecting to a three-phase winding of one electric motor (11), and each three-phase bridge arm (12) is used for connecting to a power battery (13) by means of a direct-current bus. The control method comprises: controlling each three-phase bridge arm (12) to generate a pulse current on a direct-current bus; and adjusting a switching frequency of a switching tube of at least one three-phase bridge arm (12) among a plurality of three-phase bridge arms (12), so as to reduce the phase difference between pulse currents generated by the plurality of three-phase bridge arms (12). By adjusting the phase values of pulse currents output by at least one three-phase bridge arm (12), the phase difference between pulse currents generated by a plurality of three-phase bridge arms (12) is reduced, thereby improving the heating efficiency of a power battery (13).

Classes IPC  ?

• B60L 58/27 - Procédés ou agencements de circuits pour surveiller ou commander des batteries ou des piles à combustible, spécialement adaptés pour des véhicules électriques pour la surveillance et la commande des batteries pour la commande de la température des batteries par chauffage
• B60L 58/25 - Procédés ou agencements de circuits pour surveiller ou commander des batteries ou des piles à combustible, spécialement adaptés pour des véhicules électriques pour la surveillance et la commande des batteries pour la commande de la température des batteries en commandant les charges électriques
• B60L 15/08 - Procédés, circuits ou dispositifs pour commander la propulsion des véhicules à traction électrique, p. ex. commande de la vitesse des moteurs de traction en vue de réaliser des performances désiréesAdaptation sur les véhicules à traction électrique de l'installation de commande à distance à partir d'un endroit fixe, de différents endroits du véhicule ou de différents véhicules d'un même train caractérisés par la forme du courant utilisé dans le circuit de commande utilisant des courants pulsés
• B60L 15/20 - Procédés, circuits ou dispositifs pour commander la propulsion des véhicules à traction électrique, p. ex. commande de la vitesse des moteurs de traction en vue de réaliser des performances désiréesAdaptation sur les véhicules à traction électrique de l'installation de commande à distance à partir d'un endroit fixe, de différents endroits du véhicule ou de différents véhicules d'un même train pour la commande du véhicule ou de son moteur en vue de réaliser des performances désirées, p. ex. vitesse, couple, variation programmée de la vitesse
• H01M 10/615 - Chauffage ou maintien de la chaleur

Abrégé

The disclosure relates to a semiconductor device (100), comprising: a die layer (101); a trench (111) extending into the die layer (101), the trench (111) comprising a trench bottom (111a) and trench side walls (111b); a first dopant implantation region (5a) arranged below the trench bottom (111a); a second dopant implantation region (5b) arranged below the first dopant implantation region (5a); a first dopant diffusion layer (5d) extending laterally of the first dopant implantation region (5a); and a second dopant diffusion layer (5c) extending laterally of the second dopant implantation region (5b); wherein an extension (105c) of the second dopant diffusion region (5c) in the lateral direction matches an extension of the first dopant diffusion layer (5d) in the lateral direction.

Classes IPC  ?

• H01L 29/10 - Corps semi-conducteurs caractérisés par les formes, les dimensions relatives, ou les dispositions des régions semi-conductrices avec des régions semi-conductrices connectées à une électrode ne transportant pas le courant à redresser, amplifier ou commuter, cette électrode faisant partie d'un dispositif à semi-conducteur qui comporte trois électrodes ou plus
• H01L 29/417 - Electrodes caractérisées par leur forme, leurs dimensions relatives ou leur disposition relative transportant le courant à redresser, à amplifier ou à commuter
• H01L 29/423 - Electrodes caractérisées par leur forme, leurs dimensions relatives ou leur disposition relative ne transportant pas le courant à redresser, à amplifier ou à commuter
• H01L 29/739 - Dispositifs du type transistor, c.à d. susceptibles de répondre en continu aux signaux de commande appliqués commandés par effet de champ
• H01L 29/78 - Transistors à effet de champ l'effet de champ étant produit par une porte isolée
• H01L 21/336 - Transistors à effet de champ à grille isolée

Abrégé

The present application provides a motor controller, a powertrain, and an electric vehicle, and solves the problem of current surge in power transistors when the motor controller is started, thereby improving the efficiency of the powertrain and the battery life of the vehicle. The motor controller provided by the present application comprises a control device and an inverter circuit, wherein the control device is used for sequentially receiving a first torque signal, at least one second torque signal and a third torque signal. In response to the third torque signal, the control device sequentially outputs a starting signal and a third control signal. The starting signal is used for controlling the inverter circuit to generate a starting voltage so as to avoid the problem of current surge when power transistors are turned on. The inverter circuit receives the third control signal and drives a driving motor to output a torque value indicated by the third torque signal. According to the motor controller, the powertrain, and the electric vehicle provided in embodiments of the present application, the starting speed of the motor controller can be increased, and the starting current surge of the motor controller can be eliminated.

Classes IPC  ?

• H02P 27/06 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p. ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs

Abrégé

Provided in the embodiments of the present application is an uninterruptible power supply cabinet. The uninterruptible power supply cabinet comprises a cabinet body, a switch assembly and a power cabinet; the cabinet body is provided with an external port and a first power connection end, the external port being used for connecting an external device; the switch assembly is arranged inside the cabinet body, one end of the switch assembly being electrically connected to the external port, and the other end of the switch assembly being electrically connected to the first power connection end; the power cabinet is arranged inside the cabinet body, the power cabinet comprising a first frame and at least one power module; the first frame comprises a second power connection end, the second power connection end being used for being detachably and electrically connected to the first power connection end; the power module is detachably installed on the first frame, and the power module is detachably and electrically connected to the second power connection end. The uninterruptible power supply cabinet allows for replacement of previously non-replaceable components inside the cabinet, thus improving maintenance convenience and system reliability.

Classes IPC  ?

• H02J 9/06 - Circuits pour alimentation de puissance de secours ou de réserve, p. ex. pour éclairage de secours dans lesquels le système de distribution est déconnecté de la source normale et connecté à une source de réserve avec commutation automatique
• H02B 1/30 - Enveloppes du type armoireParties constitutives ou accessoires

Abrégé

The disclosure relates to a semiconductor power device (100), comprising: a semiconductor substrate (110); a transition layer (111) formed above the semiconductor substrate (110); a Gallium-Nitride, GaN, channel layer (122) formed above the transition layer (111); an Aluminum Gallium-Nitride, AlGaN, barrier layer (130) formed on top of the GaN channel layer (122); a first GaN power device (102) and a second GaN power device (103) formed next to each other in the AlGaN barrier layer (130) and the GaN channel layer (122); and a shielding layer (101) formed between the GaN channel layer (122) and the semiconductor substrate (110). The shielding layer (101) is configured to create a 2-dimensional hole gas, 2DHG, for shielding the first GaN power device (102) and the second GaN power device (103) against an electrical potential of the semiconductor substrate (110).

Classes IPC  ?

• H01L 21/8252 - Fabrication ou traitement de dispositifs consistant en une pluralité de composants à l'état solide ou de circuits intégrés formés dans ou sur un substrat commun avec une division ultérieure du substrat en plusieurs dispositifs individuels pour produire des dispositifs, p.ex. des circuits intégrés, consistant chacun en une pluralité de composants le substrat étant un semi-conducteur, en utilisant une technologie III-V
• H01L 21/765 - Réalisation de régions isolantes entre les composants par effet de champ
• H01L 27/06 - Dispositifs consistant en une pluralité de composants semi-conducteurs ou d'autres composants à l'état solide formés dans ou sur un substrat commun comprenant des éléments de circuit passif intégrés avec au moins une barrière de potentiel ou une barrière de surface le substrat étant un corps semi-conducteur comprenant une pluralité de composants individuels dans une configuration non répétitive
• H01L 27/085 - Dispositifs consistant en une pluralité de composants semi-conducteurs ou d'autres composants à l'état solide formés dans ou sur un substrat commun comprenant des éléments de circuit passif intégrés avec au moins une barrière de potentiel ou une barrière de surface le substrat étant un corps semi-conducteur comprenant uniquement des composants semi-conducteurs d'un seul type comprenant uniquement des composants à effet de champ
• H01L 29/778 - Transistors à effet de champ avec un canal à gaz de porteurs de charge à deux dimensions, p.ex. transistors à effet de champ à haute mobilité électronique HEMT
• H01L 29/10 - Corps semi-conducteurs caractérisés par les formes, les dimensions relatives, ou les dispositions des régions semi-conductrices avec des régions semi-conductrices connectées à une électrode ne transportant pas le courant à redresser, amplifier ou commuter, cette électrode faisant partie d'un dispositif à semi-conducteur qui comporte trois électrodes ou plus

Abrégé

An electro-mechanical brake for an integrated drive shaft, and a vehicle. An electro-mechanical brake (100) comprises a brake electric motor (10) and a transmission (20), wherein the brake electric motor (10) comprises an electric motor shaft (11), and the brake electric motor (10) is fixed adjacent to the transmission (20) in an axial direction of the electric motor shaft (11); one end of the electric motor shaft (11) extends towards the transmission (20) and is in driving connection with the transmission (20), and the electric motor shaft (11) rotates and drives a brake (101) to brake a vehicle (2000) by means of the transmission (20); the brake electric motor (10) comprises a distal bearing (122) and a proximal bearing (121), wherein an inner ring (1221) of the distal bearing (122) is sleeved on the end of the electric motor shaft (11) away from the transmission (20), and an outer ring (1222) of the distal bearing (122) is supported on a housing (16) of the brake electric motor (10); and an inner ring (1211) of the proximal bearing (121) is sleeved on a middle section (11b) of the electric motor shaft (11), and an outer ring (1212) of the proximal bearing (121) is supported on the housing (16) of the brake electric motor (10) or is supported on a housing (24) of the transmission (20). In the electro-mechanical brake (100), the electric motor shaft (11) of the brake electric motor (10) also serves as an input shaft of the transmission (20), thereby improving the integration degree of the electro-mechanical brake (100) and reducing the size thereof.

Classes IPC  ?

• F16D 65/14 - Mécanismes d'actionnement pour freinsMoyens pour amorcer l'opération de freinage à une position prédéterminée
• F16D 121/18 - Électrique ou magnétique
• B60T 13/74 - Transmission de l'action de freinage entre l'organe d'attaque et les organes terminaux d'action, avec puissance de freinage assistée ou relais de puissanceSystèmes de freins incorporant ces moyens de transmission, p. ex. systèmes de freinage à pression d'air avec entraînement ou assistance électrique
• B60L 7/24 - Systèmes de freins électrodynamiques pour véhicules, en général avec freinage additionnel mécanique ou électromagnétique