Abrégé

A system includes a power supply, a collector, and a photovoltaic inverter. The photovoltaic inverter includes a controllable switch on a direct current side, an inverter unit, a controllable switch on an alternating current side, a collector configured to obtain a power supply parameter of the photovoltaic power supply system, a first controller, and a second controller. When the power supply parameter of the photovoltaic power supply system is greater than or equal to a power supply parameter threshold, the first turns off the controllable switch on the direct current side to disconnect an electrical connection between a power supply and the inverter unit. When the power supply parameter of the photovoltaic power supply system is greater than or equal to the power supply parameter threshold, the second controller turns off the controllable switch on the alternating current side to disconnect an electrical connection between the inverter unit and a load.

Classes IPC  ?

• H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif
• H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
• H02M 1/44 - Circuits ou dispositions pour corriger les interférences électromagnétiques dans les convertisseurs ou les onduleurs
• H02M 3/00 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu
• 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

A power conversion system including N power conversion units and a control unit, which can control, in a control periodicity, operating modes of one or more target power conversion units in the N power conversion units to be switched between a PR mode and an MPPT mode, and update a reference power based on a maximum power obtained in the MPPT mode, for an operating power of the target power conversion unit obtained in the PR mode to be an updated reference power, and the updated reference power is less than or equal to the maximum power. In addition, the control unit further controls an operating mode of a power conversion unit other than the target power conversion unit in the N power conversion units to remain unchanged, so that the power conversion unit other than the target power conversion unit does not perform mode switching.

Classes IPC  ?

• H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
• H02J 3/24 - Dispositions pour empêcher ou réduire les oscillations de puissance dans les réseaux
• H02M 1/00 - Détails d'appareils pour transformation

Abrégé

A power supply system includes a power conditioning apparatus, a transformer, and a controller. The power conditioning apparatus includes an inverter circuit, at least one grid-connected switch, a voltage-to-ground detector. The inverter circuit is configured to connect to the inverter circuit is configured to connect to the transformer through the at least one grid-connected switch, and the transformer is configured to connect to a power grid. When one grid-connected switch is turned off and turned on, the voltage-to-ground detector detects voltage to grounds of the power conditioning apparatus to obtain a first voltage value and a second voltage value respectively. The controller outputs alarm information for grounding of a neutral wire of the transformer or controls the power conditioning apparatus to stop working when a difference between the second voltage value and the first voltage value falls within a preset voltage range.

Classes IPC  ?

• H02H 3/26 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions électriques normales de travail avec ou sans reconnexion sensibles à la différence de tensions ou de courantsCircuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions électriques normales de travail avec ou sans reconnexion sensibles à un angle de déphasage entre tensions ou courants
• H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif

Abrégé

A power conversion system which includes N power conversion units and a control unit. The control unit selects a target power conversion unit and a coordinated power conversion unit in a control periodicity, controls an operating mode of the target power conversion unit to be sequentially switched between a PR mode and a MPPT mode, and updates a reference power based on a maximum power obtained in the MPPT mode, for an operating power of the target power conversion unit in the PR mode to be an updated reference power, and the updated reference power is less than or equal to the maximum power. In addition, the control unit controls an operating power of the coordinated power conversion unit to be coordinately adjusted, for a total variation of operating powers of the N power conversion units to be less than a variation threshold.

Classes IPC  ?

• H02M 5/458 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant alternatif, p. ex. pour changement de la tension, pour changement de la fréquence, pour changement du nombre de phases avec transformation intermédiaire en courant continu par convertisseurs statiques utilisant des tubes à décharge ou des dispositifs à semi-conducteurs pour transformer le courant continu intermédiaire en courant alternatif utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
• H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
• H02M 1/00 - Détails d'appareils pour transformation

Abrégé

This disclosure provides a powertrain and a mechanical device. The powertrain includes a heat exchanger, an electronic assembly, and a motor. The electronic assembly includes a first housing, the motor includes a second housing, the first housing is fastened to the second housing, and the heat exchanger is also fastened to the first housing, so that both the heat exchanger and the electronic assembly and both the electronic assembly and the motor are fastened as a whole. The electronic assembly includes an electronic component, and the electronic component is disposed in an accommodation cavity of the first housing. The heat exchanger includes a first flow channel, and the first flow channel is configured to transmit a cooling working medium. This embodiment can improve integration of the powertrain and heat dissipation effect of the powertrain.

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

Abrégé

A integrated inductor includes a first magnetic core, at least two second magnetic cores, and at least two windings. The first magnetic core includes a first surface and a second surface that are opposite to each other in a first direction. The second magnetic cores are disposed in the first direction on a side that is of the first surface and that is away from the second surface. The winding is wound around the first magnetic core and the second magnetic core. The second magnetic core includes a first part and a second part. Along the first direction and on a side that is of the first surface and that is opposite to the second surface, the first part is located between the winding and the first surface, and the second part is located on side that is of the winding and that is away from the first surface.

Classes IPC  ?

• H01F 27/30 - Fixation ou serrage de bobines, d'enroulements ou de parties de ceux-ci entre euxFixation ou montage des bobines ou enroulements sur le noyau, dans l'enveloppe ou sur un autre support
• H01F 3/14 - ContractionsFentes, p. ex. entrefers
• H01F 27/24 - Noyaux magnétiques
• H01F 27/32 - Isolation des bobines, des enroulements, ou de leurs éléments
• 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
• H05K 1/11 - Éléments imprimés pour réaliser des connexions électriques avec ou entre des circuits imprimés
• H05K 1/18 - Circuits imprimés associés structurellement à des composants électriques non imprimés

Abrégé

This application provides a vehicle, and an integrated driving and braking control apparatus and method for a vehicle. The vehicle includes a first electric motor brake and a second electric motor brake that are disposed on a first side of the vehicle, a drive system that is disposed on a second side of the vehicle and has an energy regeneration 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 by only the first electric motor brake and a right wheel of the first side wheels of the vehicle to be braked by only the second electric motor brake. The control apparatus is further configured to control a left wheel and a right wheel of second side wheels of the vehicle to be braked by only the drive system.

Classes IPC  ?

• B60L 7/26 - Systèmes de freins électrodynamiques pour véhicules, en général avec freinage additionnel mécanique ou électromagnétique commandant l'effet de freinage
• B60K 7/00 - Disposition du moteur dans ou jouxtant une roue motrice

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

A motor controller for pulse heating of a power battery. The motor controller includes an inverter circuit, the inverter circuit includes three switching transistor bridge arms, two ends of each switching transistor bridge arm are respectively configured to connect to positive and negative electrodes of the power battery through a direct current bus, and bridge arm midpoints of the three switching transistor bridge arms are separately configured to connect to a three-phase winding of a motor. The bridge arm midpoints of the three switching transistor bridge arms are configured to output a three-phase current, the three-phase current is used to generate a pulse alternating current on the direct current bus, and the pulse alternating current is used to heat the power battery. A current of each phase of the three-phase current is a unipolar triangular wave, and a sum of the three-phase current is zero.

Classes IPC  ?

• H02P 21/16 - Estimation des constantes, p. ex. constante de temps du rotor
• 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
• H01M 10/615 - Chauffage ou maintien de la chaleur
• H01M 10/625 - Véhicules
• H01M 10/637 - Systèmes de commande caractérisés par l’emploi de dispositifs sensibles à la température, p. ex. dispositifs NTC, PTC ou bimétalSystèmes de commande caractérisés par la commande du courant interne circulant à travers la batterie, p. ex. par commutation
• H02P 21/22 - Commande du courant, p. ex. en utilisant une boucle de commande

Abrégé

The disclosure relates to wireless a power receiver arrangement including a load, a planar inductor arrangement comprising a plurality of coil segments, and a reconfigurable switching network electrically coupled between coil segments of the plurality of coil segments. The coil segments span across respective areas of a plurality of areas and the load. The reconfigurable switching network includes a plurality of switches configured to interconnect at least a coil segment from the plurality of coil segments which spans across a smallest area of the plurality of areas according to a switching configuration to obtain a closed electrical circuit for powering the load with electrical energy from the electromagnetic field. The arrangement further includes a controller configured to determine the switching configuration in order to reduce a variation of an electromagnetic coupling of the planar inductor arrangement to the wireless power transmitter.

Classes IPC  ?

• H02J 50/12 - Circuits ou systèmes pour l'alimentation ou la distribution sans fil d'énergie électrique utilisant un couplage inductif du type couplage à résonance

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

This application provides a disk motor, an assembly method for the disk motor, a powertrain, and a vehicle. The disk motor includes a rotating shaft and a first rotor, a stator, and a second rotor that are sleeved on the rotating shaft. The first rotor, the stator, and the second rotor are sequentially spaced apart. The stator is rotatably connected to the rotating shaft. The rotating shaft includes a first shaft body and a second shaft body that are detachably connected to each other, the first shaft body is fastened to the first rotor, and the second shaft body is fastened to the second rotor.

Classes IPC  ?

• B60K 1/00 - Agencement ou montage des ensembles de propulsion électriques
• H02K 1/12 - Parties fixes du circuit magnétique
• H02K 1/22 - Parties tournantes du circuit magnétique
• H02K 7/00 - Dispositions pour la mise en œuvre d'énergie mécanique associées structurellement aux machines dynamo-électriques, p. ex. association structurelle avec des moteurs mécaniques d'entraînement ou des machines dynamo-électriques auxiliaires

Abrégé

A bidirectional on-board charger includes a direct current bus, two bus capacitors, a power factor correction circuit, and a controller. The power factor correction circuit includes: a first bridge arm; and three second bridge arms, separately connected in series between the positive electrode and the negative electrode of the direct current bus. The controller is configured to: control the first switch (K1) to be turned off, and control at least one of the second bridge arms to output a direct current to charge a power battery; or control the first switch (K1) to be turned on, and control a midpoint of at least one of the second bridge arms to output an alternating current to supply power to an alternating current load. A Vehicle power system and an electric vehicle are further disclosed. The charger reduces circuit costs.

Classes IPC  ?

• B60L 53/22 - Détails de structure ou aménagements des convertisseurs de charge spécialement adaptés pour recharger des véhicules électriques
• B60L 1/00 - Fourniture de l'énergie électrique à l'équipement auxiliaire des véhicules à traction électrique

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

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

This application relates to motor control unit technologies, and in particular, to a motor control unit, a powertrain, and a vehicle. The motor control unit includes a three-phase bridge arm, a capacitor module, and a heat dissipation panel group. The capacitor module includes a capacitor housing and a capacitor core package, and the capacitor housing includes a first sub-housing and a second sub-housing. A gap between the first sub-housing and the second sub-housing forms an accommodating cavity in a first direction, and the accommodating cavity is used to accommodate the capacitor core package. The three-phase bridge arm includes a plurality of power modules. The heat dissipation panel group is configured to dissipate heat for the plurality of power modules.

Classes IPC  ?

• 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 50/51 - Propulsion électrique par source d'énergie intérieure au véhicule utilisant de la puissance de propulsion fournie par des batteries ou des piles à combustible caractérisée par des moteurs à courant alternatif
• 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
• B60L 53/20 - Procédés de chargement de batteries spécialement adaptées aux véhicules électriquesStations de charge ou équipements de charge embarqués pour ces batteriesÉchange d'éléments d’emmagasinage d'énergie dans les véhicules électriques caractérisés par des convertisseurs situés dans le véhicule

Abrégé

A power module includes a first power semiconductor chip, a first temperature sensor, a first diode chip, and a first circuit board. The first power semiconductor chip includes a first output electrode. The first temperature sensor is located inside the first power semiconductor chip, a first cathode of the first temperature sensor is electrically connected to the first output electrode. The first diode chip is electrically connected to the first power semiconductor chip, and a voltage is generated between the first output electrode and the first cathode when the first diode chip generates a reverse recovery current. The first circuit board is configured to obtain a first voltage difference between the first output electrode and the first cathode, to obtain a temperature of the first diode chip. The power module in this application can accurately and quickly detect temperatures of the first power semiconductor chip and the first diode chip.

Classes IPC  ?

• H02M 1/32 - Moyens pour protéger les convertisseurs autrement que par mise hors circuit automatique
• B60L 8/00 - Propulsion électrique à partir d'énergie tirée des forces de la nature, p. ex. du soleil ou du vent
• G01K 7/01 - Mesure de la température basée sur l'utilisation d'éléments électriques ou magnétiques directement sensibles à la chaleur utilisant des éléments semi-conducteurs à jonctions PN
• 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 7/5387 - 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 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

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

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

A power conversion apparatus includes: a first capacitor branch, where the first capacitor branch includes at least one electrolytic capacitor, and is configured to perform voltage stabilization on a voltage received by the power conversion apparatus, to obtain a first voltage; a second capacitor branch, where the second capacitor branch includes a plurality of film capacitors connected in series, and is configured to: perform filtering on the first voltage, and perform voltage division on a first voltage obtained through filtering, to obtain a plurality of second voltages, where each film capacitor obtains one second voltage; and direct current converters in a one-to-one correspondence with the film capacitors, where an input end of each direct current converter is connected in parallel to the corresponding film capacitor; and the direct current converter is configured to perform voltage conversion on the second voltage output by the film capacitor.

Classes IPC  ?

• B60L 53/22 - Détails de structure ou aménagements des convertisseurs de charge spécialement adaptés pour recharger des véhicules électriques

Abrégé

An example on-board charger includes an insulating housing and an on-board charging device. In the on-board charging device, a bidirectional direct current conversion circuit is configured to receive a first direct current transmitted by a direct current bus, and output a second direct current through a power battery connection port to supply power to a power battery. A first bridge arm circuit is configured to receive an alternating current through an alternating current power supply input port, and output the first direct current. A second bridge arm circuit is configured to receive the first direct current and output a second alternating current through the alternating current load power supply port to supply power to the alternating current load.

Classes IPC  ?

• B60L 53/20 - Procédés de chargement de batteries spécialement adaptées aux véhicules électriquesStations de charge ou équipements de charge embarqués pour ces batteriesÉchange d'éléments d’emmagasinage d'énergie dans les véhicules électriques caractérisés par des convertisseurs situés dans le véhicule
• B60L 1/00 - Fourniture de l'énergie électrique à l'équipement auxiliaire des véhicules à traction électrique
• B60L 53/16 - Connecteurs, p. ex. fiches ou prises, spécialement adaptés pour recharger des véhicules électriques
• H02M 7/219 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu 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 dans une configuration en pont
• 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

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

An interleaved totem-pole power converter (500) includes a direct current, DC, capacitor (502), a pair of low frequency switching devices (504a and 504b) connected in series with each other and in parallel with the DC capacitor and two pairs of high frequency switching devices (506 a, 506b, 506c and 506d) connected in series with each other and in parallel with the DC capacitor (502). The two pairs of high frequency switching devices (506 a, 506b, 506c and 506d) are connected in an interleaving manner to a first output inductor (508a) and a second output inductor (508b) which are connected to an alternating current, AC, capacitor (512), and a resistive load is connected in parallel with the AC capacitor. An auxiliary inductor (510) is connected in between switching legs of the converter (500) with a control system (516,704) configured for regulating a current circulation through the auxiliary inductor (510).

Classes IPC  ?

• H02M 1/00 - Détails d'appareils pour transformation
• H02M 1/42 - Circuits ou dispositions pour corriger ou ajuster le facteur de puissance dans les convertisseurs ou les onduleurs
• 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
• H02M 7/797 - 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 avec 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

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

A heat exchange apparatus for energy storage. The heat exchange apparatus for energy storage includes a heat exchange module, an energy storage module, an air conditioning module, and a throttling module. The heat exchange module is configured to exchange heat with a load. The throttling module includes four throttling ports and two control valve: a first control valve separately communicates with the first throttling port and the second throttling port, and a second control valve separately communicates with the third throttling port and the fourth throttling port. A first temperature adjustment port of the air conditioning module separately communicates with the first throttling port and the third throttling port. The heat exchange module is connected between the second throttling port and the second temperature adjustment port. The energy storage module is connected between the fourth throttling port and the second temperature adjustment port.

Classes IPC  ?

• H01M 10/6569 - Fluides qui subissent un changement ou une transition de phase liquide-gaz, p. ex. évaporation ou condensation
• H01M 10/613 - Refroidissement ou maintien du froid
• H01M 10/615 - Chauffage ou maintien de la chaleur
• H01M 10/6554 - Barres ou plaques
• H01M 10/6563 - Gaz avec circulation forcée, p. ex. par des soufflantes
• H01M 10/663 - Relations d'échange de chaleur entre les éléments et d'autres systèmes, p. ex. chauffage central ou piles à combustibles le système étant un climatiseur ou un moteur
• H01M 10/667 - Relations d'échange de chaleur entre les éléments et d'autres systèmes, p. ex. chauffage central ou piles à combustibles le système étant un composant électronique, p. ex. un UCT, un inverseur ou un condensateur
• H02S 10/20 - Systèmes caractérisés par leurs moyens de stockage de l’énergie
• H02S 40/42 - Moyens de refroidissement

Abrégé

A power module includes a first substrate, a second substrate, a first heat sink, a second heat sink, and a chip that are disposed opposite to each other. The chip is disposed between the first heat sink and the second heat sink that are disposed opposite to each other. The first heat sink and the second heat sink are connected to the chip through sintering or welding. The first substrate and the second substrate are respectively connected to the first heat sink and the second heat sink through welding or sintering.

Classes IPC  ?

• H01L 23/367 - Refroidissement facilité par la forme du dispositif
• H01L 21/48 - Fabrication ou traitement de parties, p. ex. de conteneurs, avant l'assemblage des dispositifs, en utilisant des procédés non couverts par l'un uniquement des groupes ou
• H01L 23/00 - Détails de dispositifs à semi-conducteurs ou d'autres dispositifs à l'état solide
• H01L 23/31 - Encapsulations, p. ex. couches d’encapsulation, revêtements caractérisées par leur disposition
• H01L 23/373 - Refroidissement facilité par l'emploi de matériaux particuliers pour le dispositif
• H01L 23/498 - Connexions électriques sur des substrats isolants
• H01L 23/538 - Dispositions pour conduire le courant électrique à l'intérieur du dispositif pendant son fonctionnement, d'un composant à un autre la structure d'interconnexion entre une pluralité de puces semi-conductrices se trouvant au-dessus ou à l'intérieur de substrats isolants
• H01L 25/07 - Ensembles consistant en une pluralité de dispositifs à semi-conducteurs ou d'autres dispositifs à l'état solide les dispositifs étant tous d'un type prévu dans une seule des sous-classes , , , , ou , p. ex. ensembles de diodes redresseuses les dispositifs n'ayant pas de conteneurs séparés les dispositifs étant d'un type prévu dans la sous-classe

Abrégé

A multi-level direct current converter, a voltage control method for a flying capacitor, and a control apparatus are provided. The multi-level direct current converter includes a controller, a flying capacitor, two switching transistor groups, and an inductor. The method for controlling a flying capacitor includes: in response to that an absolute value of a difference between a sampling voltage and a reference voltage of the flying capacitor is greater than a first threshold, adjusting a duty cycle difference between first switching transistors in two switching transistor groups or a phase difference between carriers of first switching transistors in two switching transistor groups based on a magnitude of an inductor current. According to this application, a voltage of the flying capacitor can be controlled, to improve operation stability of the multi-level direct current converter.

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 1/00 - Détails d'appareils pour transformation
• H02M 1/32 - Moyens pour protéger les convertisseurs autrement que par mise hors circuit automatique
• H02M 3/07 - 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 résistances ou des capacités, p. ex. diviseur de tension utilisant des capacités chargées et déchargées alternativement par des dispositifs à semi-conducteurs avec électrode de commande

Abrégé

A protection apparatus includes an interface, a protection switch, a direct current bus, and a controller. The apparatus is connected to at least two photovoltaic units via the interface, the at least two photovoltaic units are coupled to the direct current bus inside the apparatus to form at least two branches, and each branch is connected to at least one photovoltaic unit. The protection switch is configured to disconnect all or some of the photovoltaic units from the direct current bus, to enable a maximum of three photovoltaic units to be directly connected in parallel. According to the apparatus, a photovoltaic unit and a line are protected with a low power loss when a photovoltaic inverter is faulty.

Classes IPC  ?

• H02H 3/087 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions électriques normales de travail avec ou sans reconnexion sensibles à une surcharge pour des systèmes à courant continu
• H02H 3/18 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions électriques normales de travail avec ou sans reconnexion sensibles à l'inversion de courant continu
• H02S 40/32 - Composants électriques comprenant un onduleur CC/CA associé au module PV lui-même, p. ex. module CA
• H02S 40/36 - Composants électriques caractérisés par des moyens d'interconnexions électriques spéciaux entre plusieurs modules PV, p. ex. connexion électrique module à module

Abrégé

A wireless power transmitter increases uniformity of a generated electromagnetic field distribution in a direction perpendicular to a planar plane and powers at least one electronic device from the generated electromagnetic field. The wireless power transmitter comprises a transmitter coil comprising at least one coil turn for generating an electromagnetic field. At least one coil turn of the transmitter coil extends along a plurality of first linear sections and a plurality of second linear sections electrically connected with each other. The first linear sections are arranged to enclose a planar plane of the transmitter coil and the second linear sections are formed to extend angularly to the planar plane.

Classes IPC  ?

• H02J 50/12 - Circuits ou systèmes pour l'alimentation ou la distribution sans fil d'énergie électrique utilisant un couplage inductif du type couplage à résonance
• H02J 50/40 - Circuits ou systèmes pour l'alimentation ou la distribution sans fil d'énergie électrique utilisant plusieurs dispositifs de transmission ou de réception

Abrégé

A semiconductor package comprises: a thermally conductive layer and semiconductor devices thermally connected with the thermally conductive layer. The semiconductor devices produce heat, which the thermally conductive layer dissipates at least partly. Some heat is transferred from a semiconductor device to another semiconductor device. The semiconductor package further comprises a temperature balancing element arranged in thermal connection i) with the thermally conductive layer and ii) with the other semiconductor device(s).

Classes IPC  ?

• H01L 23/367 - Refroidissement facilité par la forme du dispositif
• H01L 21/48 - Fabrication ou traitement de parties, p. ex. de conteneurs, avant l'assemblage des dispositifs, en utilisant des procédés non couverts par l'un uniquement des groupes ou
• H01L 23/00 - Détails de dispositifs à semi-conducteurs ou d'autres dispositifs à l'état solide
• H01L 23/373 - Refroidissement facilité par l'emploi de matériaux particuliers pour le dispositif
• H01L 25/07 - Ensembles consistant en une pluralité de dispositifs à semi-conducteurs ou d'autres dispositifs à l'état solide les dispositifs étant tous d'un type prévu dans une seule des sous-classes , , , , ou , p. ex. ensembles de diodes redresseuses les dispositifs n'ayant pas de conteneurs séparés les dispositifs étant d'un type prévu dans la sous-classe

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

One example power factor correction (PFC) circuit includes S first bridge arms, a second bridge arm, and a voltage stabilization capacitor that are connected in parallel, and the PFC circuit further includes an integrated inductor. The integrated inductor includes a magnetic core, S first windings, and S second windings. Second ends of the S first windings are respectively connected to midpoints of the S first bridge arms. A second end of a balancing unit formed by the S second windings are connected to a midpoint of the second bridge arm. The magnetic core includes M+1 first magnetic yokes sequentially arranged in parallel. The S first windings and the S second windings are disposed in spaces formed by any two adjacent first magnetic yokes. Two adjacent first magnetic yokes corresponding to the S first windings are the same, and two adjacent first magnetic yokes corresponding to the S second windings are the same.

Classes IPC  ?

• H02M 1/42 - Circuits ou dispositions pour corriger ou ajuster le facteur de puissance dans les convertisseurs ou les onduleurs
• H02M 7/219 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu 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 dans une configuration en pont

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

A power converter and a method. When the voltage at the grid connection point exceeds the preset voltage range and an amplitude of a voltage output by the power conversion circuit is not greater than a voltage threshold, embodiments can control the amplitude of the current output by the power conversion circuit to be not greater than a second current threshold, where the second current threshold is greater than the first current threshold, and a ratio of an active current to a reactive current output by the power conversion circuit is constant or changes; or, when the amplitude of the voltage output by the power conversion circuit is greater than the voltage threshold, embodiments can control the amplitude of the current output by the power conversion circuit to be equal to the second current threshold, where the ratio of the active current to the reactive current changes.

Classes IPC  ?

• H02J 3/18 - Dispositions pour réglage, élimination ou compensation de puissance réactive dans les réseaux
• H02J 3/32 - Dispositions pour l'équilibrage de charge dans un réseau par emmagasinage d'énergie utilisant des batteries avec moyens de conversion
• H02M 1/00 - Détails d'appareils pour transformation

Abrégé

This application provides an electro-mechanical braking system and a vehicle. The electro-mechanical braking system includes a clamp body which includes two sliding blocks, a screw rod, and a gain bridge, one of the sliding blocks is configured to be movably connected to one friction plate and the gain bridge, the gain bridge is configured to drive the friction plate, the other sliding block is configured to be in transmission connection to the sliding block and the other friction plate through the screw rod, and the screw rod is configured to be in threaded connection to the other sliding block. The electro-mechanical braking system includes a driving apparatus which is configured to drive the gain bridge and the sliding block and is configured to drive, through a one-way torque limiting apparatus, the screw rod to rotate along an axis of the screw rod relative to the two sliding blocks.

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 1/06 - Aménagements des éléments de freinage, c.-à-d. des parties de ceux-ci dans lesquelles se produit l'effet de freinage en agissant par retardement des roues par action autre que sur la bande de roulement, p. ex. par action sur une jante, un tambour, un disque ou sur la transmission
• F16D 55/226 - 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 dans lesquels l'organe d'actionnement commun se déplace axialement
• 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 65/56 - Dispositifs de réglage mécaniques agissant automatiquement dans une direction pour le réglage d'un jeu excessif à filetage et écrou
• F16D 121/24 - Électrique ou magnétique utilisant des moteurs
• F16D 125/30 - CamesLeviers à cames agissant sur plusieurs suiveurs de came, p. ex. came en forme de S
• F16D 125/40 - Vis-écrou
• F16D 127/02 - Mécanismes de desserrage ou de relâchement

Abrégé

This application provides a powertrain, a control method for a motor controller, and an electric vehicle. The powertrain includes a motor controller and a drive motor, the motor controller includes three bridge arms connected in parallel, and a bridge arm midpoint of one of the three bridge arms is configured to connect to the other end of the direct current power supply. In response to that the direct current power supply switches from outputting a direct current to stopping outputting the direct current, an upper bridge arm switching transistor of one bridge arm of the other two bridge arms of the three bridge arms is turned on and a lower bridge arm switching transistor of the other bridge arm of the other two bridge arms is turned on. The power battery is configured to supply power to one phase winding and another phase winding, to reduce slipping sound.

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
• 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 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
• 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

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

An inverter includes a first power board, a second power board, and a first filter circuit, a second filter circuit, and a third filter circuit. The first power board is configured to fasten an inverter circuit and the first filter circuit. The second filter circuit includes one or more inverter inductors, and an output end of the inverter inductor is electrically connected to an input end of the first filter circuit through a first wire and the first power board sequentially. The second power board is configured to fasten the third filter circuit, the third filter circuit is electrically connected to the output end of the inverter inductor through the second power board and a second wire sequentially, and the third filter circuit is further configured to electrically connect to a power grid or a load.

Classes IPC  ?

• H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
• H02J 3/01 - Dispositions pour réduire les harmoniques ou les ondulations
• H02M 1/00 - Détails d'appareils pour transformation
• H02M 7/44 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques

Abrégé

This application provides an on board power supply apparatus and an electric vehicle, which effectively resolves problems of easy damage to a switch circuit and a waste of electrical energy due to repeated turn-on of the switch circuit. The on board power supply apparatus includes a first power conversion circuit and a switch module. The switch module includes a driver, a switch assembly, and a latch circuit. A low-voltage load is configured to receive the low-voltage direct current or receive an output voltage of a low-voltage power supply through the switch assembly. When the low-voltage power supply supplies power to the low-voltage load through the switch assembly, in response to a turn-off signal output by the latch circuit, the driver controls the switch assembly to break a connection between the low-voltage power supply and the low-voltage load until the latch circuit stops outputting the turn-off signal.

Classes IPC  ?

• B60L 53/22 - Détails de structure ou aménagements des convertisseurs de charge spécialement adaptés pour recharger des véhicules électriques
• B60L 1/00 - Fourniture de l'énergie électrique à l'équipement auxiliaire des véhicules à traction électrique
• B60L 58/20 - 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 de plusieurs modules de batterie ayant différentes tensions nominales
• H02J 1/08 - Systèmes à trois filsSystèmes ayant plus de trois fils

Abrégé

An energy storage cabinet includes a battery rack and a power conversion system. A switch unit is connected between a battery unit and the power conversion system. A first end of the power conversion system is connected to a bus. When an energy storage cabinet in the energy storage system is started, a voltage at the first end of the power conversion system is greater than a first preset voltage. The power conversion system in the to-be-started energy storage cabinet may obtain, through the first end, a voltage output by the started energy storage cabinet, convert the voltage into a target voltage, and then supply power to the start unit. After obtaining the power, the start unit controls the switch unit to be turned on. The battery unit may output stored electric energy through the power conversion system, to start the energy storage cabinet.

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
• H01M 10/42 - Procédés ou dispositions pour assurer le fonctionnement ou l'entretien des éléments secondaires ou des demi-éléments secondaires
• H01M 50/204 - Bâtis, modules ou blocs de multiples batteries ou de multiples cellules
• H01M 50/251 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports spécialement adaptés aux dispositifs fixes, p. ex. production d’énergie tampon ou production d’énergie de secours
• H01M 50/51 - Connexion seulement en série
• H02J 1/08 - Systèmes à trois filsSystèmes ayant plus de trois fils
• H02M 1/00 - Détails d'appareils pour transformation

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

This application provides a wheel side braking apparatus and a vehicle. The wheel side braking apparatus is configured to directly connect to both an automated driving system and a brake control unit, the automated driving system is configured to output a first brake signal, and the brake control unit is configured to output a second brake signal. The wheel side braking apparatus brakes the vehicle in response to at least one of the first brake signal or the second brake signal.

Classes IPC  ?

• B60T 7/12 - Organes d'attaque de la mise en action des freins par déclenchement automatiqueOrganes d'attaque de la mise en action des freins par déclenchement non soumis à la volonté du conducteur ou du passager
• B60T 7/02 - Organes d'attaque de la mise en action des freins par l'entremise d'une personne
• B60T 8/172 - Détermination des paramètres de commande utilisés pour la régulation, p. ex. par des calculs impliquant des paramètres mesurés ou détectés
• B60T 17/22 - Dispositifs pour surveiller ou vérifier les systèmes de freinsDispositifs de signalisation

Abrégé

An inverter includes a chassis, which has a cavity that accommodates a plurality of power devices and a partition and blocking assembly. The partition and blocking assembly divides the cavity of the chassis into two installation cavities, and the plurality of power devices are disposed in the two installation cavities. The chassis includes a first side wall and a second side wall that are adjacent to each other. An air inlet of a fan of the partition and blocking assembly communicates with one installation cavity, an air outlet of the fan communicates with the other installation cavity, and a direction from the air inlet to the air outlet faces away from the first side wall. A gap exists between the partition and blocking assembly and the second side wall, or the partition and blocking assembly is provided with a through hole.

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
• H02J 15/00 - Systèmes d'accumulation d'énergie électrique
• H02M 1/32 - Moyens pour protéger les convertisseurs autrement que par mise hors circuit automatique

Abrégé

This application provides a control circuit, a power supply module, and an electronic device. The power supply module includes a rectifier circuit and an asymmetric half-bridge flyback converter circuit which includes a main power transistor, an auxiliary power transistor, and a transformer. The control circuit controls the main power transistor and the auxiliary power transistor to be alternately turned on and off, so that the asymmetric half-bridge flyback converter circuit supplies power to a load. The control circuit is configured to: control the rectifier circuit to discharge to the transformer within preset duration; and after the rectifier circuit stops discharging to the transformer, control the main power transistor to be turned on based on a comparison result of a preset voltage value and voltage difference between a drain and a source of the main power transistor. This application reduce switching loss of the main power transistor.

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
• H02M 1/00 - Détails d'appareils pour transformation
• H02M 1/32 - Moyens pour protéger les convertisseurs autrement que par mise hors circuit automatique

Abrégé

A method and apparatus are applicable to a first node in a power line communication (PLC) system including at least three nodes. The at least three nodes are in a full-duplex working mode. The method includes the first node receives first information from a second node, where the second node is any node in the at least three nodes other than the first node. The first node determines, based on a priority of the second node and/or a priority of the first information, whether to interrupt transmission of second information, where the second information is information currently transmitted by the first node.

Classes IPC  ?

• H04B 3/54 - Systèmes de transmission par lignes de réseau de distribution d'énergie
• H04L 5/14 - Fonctionnement à double voie utilisant le même type de signal, c.-à-d. duplex

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

A power generation system, a power converter, and a switch assembly. The plurality of positive input ports and the plurality of negative input ports are configured to electrically connect the switch assembly to an external direct current source, and the switch assembly is electrically connected to the power device through a trace on the circuit mainboard. The switch assembly includes a plurality of first pins and a plurality of second pins, the plurality of first pins are located in a first region, the plurality of second pins are located in a second region, the first region and the second region are stacked in a first direction. The controller is configured to send a switch-off signal to the switch assembly when the external direct current source or the power device is faulty. The power converter provided can resolve a problem of a short circuit occurring during condensation.

Classes IPC  ?

• H05K 5/02 - Enveloppes, coffrets ou tiroirs pour appareils électriques Détails
• H01H 19/14 - Organes moteurs, p. ex. bouton rotatif
• H05K 1/18 - Circuits imprimés associés structurellement à des composants électriques non imprimés
• H05K 5/03 - Couvercles ou capots
• H05K 7/14 - Montage de la structure de support dans l'enveloppe, sur cadre ou sur bâti

Abrégé

A power converter arrangement for power conversion in a single-phase power network, where the power converter arrangement comprises an input filter coupled to a first phase terminal to receive a first AC voltage, the input filter being configured to filter the first AC voltage to provide an input voltage; an electrical switching network comprising an array of bidirectional switches and an output terminal, the array of bidirectional switches being configured to generate a switched voltage from the input voltage at the output terminal. The electrical switching network comprises a decoupling capacitor to reduce undesirable oscillations at the output terminal; and a resonant circuit configured to convert the switched voltage into a supply voltage for supplying a load.

Classes IPC  ?

• H02M 7/23 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu 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 agencés pour la marche en parallèle
• H02M 1/00 - Détails d'appareils pour transformation
• H02M 1/12 - Dispositions de réduction des harmoniques d'une entrée ou d'une sortie en courant alternatif
• H02M 1/14 - Dispositions de réduction des ondulations d'une entrée ou d'une sortie en courant continu

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

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

This application provides a control circuit of a power supply module, and an electronic device. In one example, the power supply module includes a rectifier circuit and an active clamp flyback converter circuit which includes a main power transistor, an auxiliary power transistor, and a transformer. The control circuit is configured to: control the active clamp flyback converter circuit to operate in a discontinuous conduction mode, and control the rectifier circuit to discharge to the transformer within preset duration after the auxiliary power transistor is turned off and before the main power transistor is turned on; and after the rectifier circuit stops discharging to the transformer, control the main power transistor to be turned on based on a comparison result of a voltage difference between a drain and a source of the main power transistor and a preset voltage value.

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
• H02M 1/00 - Détails d'appareils pour transformation
• H02M 1/32 - Moyens pour protéger les convertisseurs autrement que par mise hors circuit automatique

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

A charging apparatus and a charging control method, so that only a small quantity of relays are required when an output voltage range and an output power of a power converter are increased. This effectively reduces circuit costs of the charging apparatus, and effectively simplifies a control procedure for serial connection or parallel connection between a plurality of outputs of the power converter. The apparatus includes a first power converter, a first relay, and a second relay. The first power converter includes a first output end and a second output end. Conduction states of the first relay and the second relay are controlled, to control serial connection or parallel connection between the plurality of output ends of the first power converter.

Classes IPC  ?

• H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries
• H02M 1/00 - Détails d'appareils pour transformation
• 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 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

A box-type substation, an energy storage power supply system, and a photovoltaic power generation system. The box-type substation includes a low-voltage cabinet, a high-voltage cabinet, a transformer, a first keychain, and a second keychain. When two circuit breakers in the low-voltage cabinet are in a switched-on state, each of the first keychain and the second keychain is locked at a corresponding circuit breaker. Therefore, when maintenance is performed on the transformer, the circuit breakers in the low-voltage cabinet are switched off first to remove the first keychain and the second keychain. Then, the first keychain and the second keychain are used together to switch off a disconnector in the high-voltage cabinet, and the first keychain and the second keychain are locked at the disconnector when the disconnector is in a switched-off state. Mechanical lock logic of the box-type substation is simple with high efficiency.

Classes IPC  ?

• H02H 11/00 - Circuits de protection de sécurité pour empêcher la commutation de mise en service dans le cas où une condition électrique de travail indésirable pourrait en résulter
• H02B 1/24 - Circuits pour tableaux ou stations de commutation
• H02B 1/46 - BoîtiersParties constitutives ou accessoires
• H02J 3/32 - Dispositions pour l'équilibrage de charge dans un réseau par emmagasinage d'énergie utilisant des batteries avec moyens de conversion
• H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
• H02S 40/32 - Composants électriques comprenant un onduleur CC/CA associé au module PV lui-même, p. ex. module CA

Abrégé

A power module, including: a chip, a package baseplate, a ceramic baseplate, and a plastic package body. The chip is disposed on the ceramic baseplate, the package baseplate is disposed on a surface that is of the ceramic baseplate and that is away from the chip, and an area of the package baseplate is greater than an area of the ceramic baseplate. The package baseplate includes at least one protrusion structure which is located on a surface that is of the package baseplate and that is close to the ceramic baseplate, and projection of the at least one protrusion structure does not overlap projection of the ceramic baseplate in a thickness direction of the chip. The chip, the ceramic baseplate, and the surface that is of the package baseplate and on which the at least one protrusion structure is disposed are disposed in the plastic package body.

Classes IPC  ?

• H01L 23/495 - Cadres conducteurs
• H01L 23/00 - Détails de dispositifs à semi-conducteurs ou d'autres dispositifs à l'état solide
• H01L 23/31 - Encapsulations, p. ex. couches d’encapsulation, revêtements caractérisées par leur disposition

Abrégé

A semiconductor device includes: a substrate including a first wide-bandgap semiconductor material; a first region of a first conductivity type and a second region of a second conductivity type arranged above the substrate, where the first region and the second region include a second wide-bandgap semiconductor material, and where the first region and the second region form a Zener PN diode configured as an anti-fuse.

Classes IPC  ?

• H01L 23/62 - Protection contre l'excès de courant ou la surcharge, p. ex. fusibles, shunts
• H01L 23/373 - Refroidissement facilité par l'emploi de matériaux particuliers pour le dispositif
• H01L 29/16 - Corps semi-conducteurs caractérisés par les matériaux dont ils sont constitués comprenant, mis à part les matériaux de dopage ou autres impuretés, seulement des éléments du groupe IV de la classification périodique, sous forme non combinée
• H01L 29/20 - Corps semi-conducteurs caractérisés par les matériaux dont ils sont constitués comprenant, à part les matériaux de dopage ou autres impuretés, uniquement des composés AIIIBV
• H01L 29/205 - Corps semi-conducteurs caractérisés par les matériaux dont ils sont constitués comprenant, à part les matériaux de dopage ou autres impuretés, uniquement des composés AIIIBV comprenant plusieurs composés dans différentes régions semi-conductrices
• H01L 29/24 - Corps semi-conducteurs caractérisés par les matériaux dont ils sont constitués comprenant, à part les matériaux de dopage ou autres impuretés, uniquement des matériaux semi-conducteurs inorganiques non couverts par les groupes , ,  ou
• H01L 29/267 - Corps semi-conducteurs caractérisés par les matériaux dont ils sont constitués comprenant, à part les matériaux de dopage ou autres impuretés, des éléments couverts par plusieurs des groupes , , , , dans différentes régions semi-conductrices
• H01L 29/66 - Types de dispositifs semi-conducteurs
• H01L 29/866 - Diodes Zener

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