Abrégé

A multi-way valve includes a valve core and a valve seat. The valve seat is sleeved on the valve core. An outer circumferential surface of the valve core is in contact with an inner circumferential surface of the valve seat. The outer circumferential surface of the valve core includes a plurality of axial grooves and a plurality of circumferential grooves. The inner circumferential surface of the valve seat includes a plurality of openings. Each opening is connected to one liquid flow path through an internal channel of the valve seat. The plurality of openings is arranged in an array and at intervals along a direction of a rotation axis of the valve core and a circumferential direction of the valve core. Each opening communicates with at least one other adjacent opening through one axial groove or one circumferential groove.

Classes IPC  ?

• F16K 11/044 - Soupapes ou clapets à voies multiples, p. ex. clapets mélangeursRaccords de tuyauteries comportant de tels clapets ou soupapesAménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont toutes les faces d'obturation se déplacent comme un tout comportant uniquement des soupapes ou des clapets à corps de soupape ou de clapet mobiles situés entre des sièges de soupape ou de clapet
• F16K 27/02 - Structures des logementsMatériaux utilisés à cet effet des soupapes de levage
• H01M 10/613 - Refroidissement ou maintien du froid

Abrégé

The present application provides a power module and a power conversion apparatus. The power module comprises a substrate, a first sintered layer, and a power device. The substrate comprises an insulating layer and a first conductive layer. In the thickness direction of the substrate, the first conductive layer is stacked on one side of the insulating layer, and the first sintered layer and the power device are sequentially stacked on the side of the first conductive layer facing away from the insulating layer. The power device comprises a power chip, a first fixing layer and a first connecting layer that are sequentially stacked in the thickness direction of the substrate, the first connecting layer being in contact with the first sintered layer. In the thickness direction of the substrate, the thickness of the first sintered layer is greater than the thickness of the first connecting layer and less than the thickness of the first conductive layer. The first sintered layer has a relatively low porosity, which is beneficial to improving the heat dissipation efficiency of the power device, thereby improving the bonding strength between the power device and the substrate by means of the first sintered layer, and improving the structural stability of the power module.

Classes IPC  ?

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

Abrégé

A a motor, a powertrain, and a device. A plurality of first oil channels are formed between an inner surface of a housing and an outer surface of a stator core, second oil channels are formed at groove roots of coil slots of the stator core, to form double-layer oil channels at the outer surface of the stator core and the root of the coil slot of the stator core, and ensure effective cooling of the stator core and a coil winding. After cooling oil is injected from an oil filling port, a flow direction of the cooling oil in some of the second oil channels is opposite to that of cooling oil in a remaining second oil channel, so that interleaved reverse flows are implemented, and axial temperature of the stator core and the coil winding is more even.

Classes IPC  ?

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

Abrégé

Disclosed in the present application are a power module, a power device, and a photovoltaic power generation system. The power module comprises a substrate, a first power device, a co-fired ceramic module, and a package body. The first power device is located on a surface of the substrate and is electrically connected to the substrate. The co-fired ceramic module is located on the side of the first power device facing away from the substrate, and the co-fired ceramic module and the first power device are spaced apart. The co-fired ceramic module comprises a co-fired ceramic base and a second power device, wherein the second power device is embedded in the co-fired ceramic base and is electrically connected to at least one of the substrate and the first power device. The package body encapsulates the substrate, the first power device, and the co-fired ceramic module. By means of the design scheme of the power module, the integration level and power density of the power module are improved while ensuring the structural reliability of the power module, and improvement to the power conversion performance of the power module is also facilitated, thereby improving the power density of the power device and thus improving the power generation efficiency of the photovoltaic power generation system.

Classes IPC  ?

• 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

Abrégé

The present application provides a power converter. By adding an MPPT circuit connected between an input of the power converter and a primary-side circuit, and by controlling the on/off states of switching transistors in the MPPT circuit and the primary-side circuit, when the power converter is connected to two photovoltaic modules connected in series, MPPT can be implemented for individual photovoltaic modules according to requirements. Moreover, when output currents of the two photovoltaic modules connected in series are the same, at least some of the switching transistors in the MPPT circuit can be directly turned off, and by controlling the on/off states of the switching transistors in the primary-side circuit, MPPT can be implemented for the entire connected photovoltaic modules, thereby improving working efficiency. In addition, by controlling the on/off states of the switching transistors in the MPPT circuit and the primary-side circuit, normal operation when an individual photovoltaic module is connected can also be achieved, thus solving the problem of compatibility.

Classes IPC  ?

• H02M 7/483 - Convertisseurs munis de sorties pouvant chacune avoir plus de deux niveaux de tension
• 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 present application are a dual-electric-motor power assembly and an electric vehicle. The housing of the dual-electric-motor power assembly comprises a middle partition plate, the middle partition plate divides the housing into two accommodating cavities, each accommodating cavity is used for accommodating an electric motor and a speed reducer, the middle partition plate is used for fixing a conductive member and two bearings, and the middle partition plate comprises two bearing grooves and a through hole. The through hole runs through the groove bottoms of the two bearing grooves in the axial direction of the dual-electric-motor power assembly, the conductive member passes through the through hole in the axial direction of the dual-electric-motor power assembly, two conductive ends of the conductive member are arranged on two sides of the middle partition plate, and each conductive end is used for electrical connection to an electric-motor shaft. By means of providing a through hole in the middle partition plate and configuring the conductive member to pass through the through hole, the two conductive ends are electrically connected to the electric-motor shafts in the two accommodating cavities, thereby conducting an electric current of the bearings and the electric-motor shafts to the middle partition plate, realizing bearing grounding to the housing and reducing electrical corrosion of the bearings. The grounding of two electric motors is realized by the single conductive member passing through the through hole, resulting in fewer parts, simple assembly and fast installation.

Classes IPC  ?

• B60K 1/02 - Agencement ou montage des ensembles de propulsion électriques comprenant plus d'un moteur électrique
• B60L 3/00 - Dispositifs électriques de sécurité sur véhicules propulsés électriquementContrôle des paramètres de fonctionnement, p. ex. de la vitesse, de la décélération ou de la consommation d’énergie
• B60R 16/06 - Circuits électriques ou circuits de fluides spécialement adaptés aux véhicules et non prévus ailleursAgencement des éléments des circuits électriques ou des circuits de fluides spécialement adapté aux véhicules et non prévu ailleurs électriques pour enlever les charges électrostatiques

Abrégé

The present application provides a switching device and an inverter. The switching device comprises a housing, an operating handle, an operating mechanism, a moving contact, a stationary contact, a first trip unit, and a second trip unit. When a fault occurs outside an inverter, on the basis of a first driving signal, the first trip unit causes the switching device to trip. The first trip unit can be reset by rotating the operating handle, so that a user or system can automatically restore the closing and opening of the switching device after inspection. When a fault occurs inside the inverter, on the basis of a second driving signal, the second trip unit causes the switching device to trip. Upon clearing the internal fault, maintenance personnel restore the second trip unit, enabling the switching device to close and open. Therefore, when faults occur inside and outside the inverter, different trip units cause the switching device to trip, allowing the user or system to perform restoration after the trip caused by the external fault and the maintenance personnel to perform restoration after the trip caused by the internal fault, thereby improving the safety of the inverter.

Classes IPC  ?

• H01H 71/24 - Mécanismes électromagnétiques

Abrégé

A direct current end of the power converter is configured to connect to a photovoltaic module or an energy storage battery, and an alternating current end of the power converter is configured to connect to a load or a power grid. The power converter includes a power conversion circuit and a controller. The power conversion circuit is configured to convert a direct current into an alternating current. The controller is configured to: during black start of the power converter, first control a voltage amplitude of the alternating current output by the power conversion circuit to be increased at a first rate, and then control the voltage amplitude of the alternating current output by the power conversion circuit to be increased at a second rate, where the second rate is greater than the first rate.

Classes IPC  ?

• H02M 1/36 - Moyens pour mettre en marche ou arrêter les convertisseurs
• H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif
• 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
• H02J 3/42 - Synchronisation d'un générateur pour sa connexion à un réseau ou à un autre générateur avec connexion automatique en parallèle quand le synchronisme est obtenu

Abrégé

A powertrain and an electric vehicle. The powertrain includes a housing, an oil baffle, and at least one gear. The oil baffle and the at least one gear are disposed inside the housing. The oil baffle includes a radial oil baffle and an axial oil baffle. The radial oil baffle is arranged between the housing and one gear in a radial direction of the gear. The axial oil baffle is arranged between the housing and one gear in an axial direction of the gear. When one gear in the housing stirs oil for lubrication inside the housing, the oil baffle can form barriers between the housing and the gear respectively in a radial direction and an axial direction of the gear, so that an excessively large drag loss is not caused by stirring excessive oil. Therefore, a loss of the powertrain can be reduced.

Classes IPC  ?

• F16H 57/04 - Caractéristiques relatives à la lubrification ou au refroidissement

Abrégé

The present application provides an energy storage system, comprising a plurality of battery clusters, power converters correspondingly connected to the battery clusters, and a main controller. The main controller is configured to, when the decrease of the load capacity of a power grid is greater than or equal to a first threshold or the increase of the load capacity of the power grid is greater than or equal to a second threshold, control j power converters among one or more power converters to stop power output, and control k power converters other than the j power converters to output reactive power, wherein the reactive power output by the k power converters is greater than or equal to reactive power absorbed by the j power converters from the power grid, so as to prevent the energy storage system from pulling down the voltage of the power grid in a standby state.

Classes IPC  ?

• H02J 3/32 - Dispositions pour l'équilibrage de charge dans un réseau par emmagasinage d'énergie utilisant des batteries avec moyens de conversion

Abrégé

An electro-mechanical braking system for redundant braking. The system comprises two front wheel end braking devices (401, 402) and two rear wheel end braking devices (403, 404); the front wheel end braking devices (401, 402) respectively brake two front wheels of a vehicle; each front wheel end braking device comprises two front wheel driving units which are mutually backed up, and one front wheel brake caliper; the two rear wheel end braking devices (403, 404) respectively brake two rear wheels of the vehicle; and each rear wheel end braking device comprises one rear wheel driving unit and one rear wheel brake caliper. When one front wheel driving unit in any front wheel end braking device fails, the other front wheel driving unit in the device still outputs a clamping force to a brake disk of one front wheel of the vehicle. In this way, at least one front wheel driving unit that works normally exists on the front wheels on both sides of the vehicle, so that sufficient braking force can be provided for the electric vehicle without using a diagonal braking strategy. Also provided is a vehicle.

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

Abrégé

The present application relates to the field of new energy vehicles. Provided are an extended-range powertrain for realizing sensorless start, and a shutdown method and a vehicle, which can be applied to extended-range electric vehicles. The extended-range powertrain comprises a generator and an electric motor controller, wherein during the rotation of a rotor of the generator, the electric motor controller is used for receiving a rotor position signal from a resolver, and the rotor position signal is used for indicating a rotor position angle of the generator; and during the process of engine shutdown, the electric motor controller is used for controlling, after an engine is shut down and on the basis of the rotor position angle of the generator which is indicated by the rotor position signal, the rotor of the generator to stop rotating at a preset rotor position, and the process of engine shutdown refers to a process in which a piston of the engine switches from a reciprocating motion state to a motion stop state. On the basis of the present solution, the problem of start shake or start failure during the start of an engine can be effectively solved, engine-side sensor data is not required, the delay of a control signal is low, the reliability is high, and the applicability is high.

Classes IPC  ?

• B60L 50/62 - 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 par des batteries chargées par des générateurs entraînés par le moteur, p. ex. des véhicules électriques hybrides du type série chargées par des générateurs à faible puissance principalement destinés à venir en appui aux batteries, p. ex. par des prolongateurs d’autonomie
• B60W 20/10 - Commande de l'apport de puissance de chacun des moteurs primaires pour répondre à la demande de puissance requise
• B60W 10/06 - Commande conjuguée de sous-ensembles de véhicule, de fonction ou de type différents comprenant la commande des ensembles de propulsion comprenant la commande des moteurs à combustion
• B60W 10/08 - Commande conjuguée de sous-ensembles de véhicule, de fonction ou de type différents comprenant la commande des ensembles de propulsion comprenant la commande des unités de traction électrique, p. ex. des moteurs ou des générateurs

Abrégé

The present application provides a switching device and an inverter. The switching device comprises a housing, an operating handle, an operating mechanism, a movable contact, a stationary contact, and a trip unit. The operating mechanism comprises a latching assembly and a trip latch. When the latching assembly is at a first position, the latching assembly engages with the trip latch. When the latching assembly is at a second position, the latching assembly disengages from the trip latch. The trip unit comprises a moving shaft, two coils, and two permanent magnets. The two permanent magnets generate two acting forces in opposite directions on the moving shaft. When the two coils are energized, an acting force exerted by the coils on the moving shaft is superimposed on one of the two acting forces and at least partially cancels the other acting force, so that the moving shaft moves close to or away from the latching assembly. On the basis of a drive signal, the trip unit drives the latching assembly to rotate to the second position, so that the latching assembly remains disengaged from the trip latch. As a result, the operating handle is disengaged from the operating mechanism and cannot drive the movable contact to move, thereby preventing the switching device from closing and improving the stability of the switching device in a tripped state.

Classes IPC  ?

• H01H 71/66 - Mécanismes de réarmement à moteur

Abrégé

The present application provides a switching device and an inverter. The switching device comprises a housing, an operating handle, an operating mechanism, a movable contact, a static contact, and a trip unit. The operating handle drives, by means of the operating mechanism, the movable contact to move so as to be brought into contact with or separated from the static contact. The operating mechanism comprises a latch assembly and a trip lever. When the latch assembly is in a first position, the latch assembly is engaged with the trip lever. When the latch assembly is in a second position, the latch assembly is disengaged from the trip lever. The trip unit comprises a coil winding, a first yoke, a second yoke, and a trip assembly. The trip assembly comprises a magnetic assembly and a drive component. Upon receiving a drive signal, the trip unit can rotate the latch assembly from the first position to the second position, so that the latch assembly is kept disengaged from the trip lever, causing the operating handle to trip from the operating mechanism and be unable to drive the movable contact to move, and as a result, the switching device cannot be closed, thereby improving the stability of the switching device in a tripped state.

Classes IPC  ?

• H01H 71/24 - Mécanismes électromagnétiques

Abrégé

A switch apparatus (30) and an inverter. The switch apparatus comprises a housing (35), an operating handle (31), an operating mechanism (32), a moving contact (331), a static contact, and a first trip device (34). A traction rod (321) and a locking rod (323) separately rotate relative to the housing. The traction rod is transmittingly connected to the operating mechanism. The traction rod has a first surface (S1) and a second surface (S2) adjacent to each other. When the traction rod is located at a first position, a latch lever (322) is engaged with a trip latch (HE). When the traction rod is located at a second position, the latch lever is disengaged from the trip latch. On the basis of a driving signal, the first trip device is used for driving the traction rod to rotate from the first position to the second position, and at the same time, one end of the locking rod slides from the first surface to the second surface to lock the rotation direction of the traction rod, thereby keeping the latch lever disengaged from the trip latch. Thus, the operating handle is disengaged from the operating mechanism, failing to drive the moving contact to move, so that the switch apparatus cannot be closed, thereby improving the stability of the switch apparatus in a tripped state.

Classes IPC  ?

• H01H 71/12 - Mécanismes de déclenchement automatique avec ou sans déclenchement manuel

Abrégé

Provided in the present application is an inverter. The inverter comprises an input end, a direct-current (DC) switch, a plurality of DC/DC converters, direct-current buses, a DC/AC converter, a controller and an output end, wherein the DC switch comprises an operating handle, an operating mechanism, a moving contact, a fixed contact and a first drive apparatus, and the operating mechanism comprises a trip latch component and a latch component; input ends of the plurality of DC/DC converters are connected to the input end of the inverter by means of the DC switch; when a fault occurs in the inverter, the controller sends a first drive signal to the first drive apparatus; upon receiving the first drive signal, the first drive apparatus drives a moving component in the first drive apparatus, so as to drive the latch component to disengage from the trip latch component and to cause the moving contact to separate from the fixed contact; and when the trip latch component is disengaged from the latch component, the operating handle cannot drive the moving contact to be in contact with or separated from the fixed contact. Therefore, the spread of a fault due to the fact that a DC switch is manually turned on when the fault still exists in an inverter can be avoided.

Classes IPC  ?

• H02H 7/122 - Circuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour convertisseursCircuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour redresseurs pour convertisseurs ou redresseurs statiques pour onduleurs, c.-à-d. convertisseurs de courant continu en courant alternatif

Abrégé

An energy storage system and an insulation impedance detection method for an energy storage system. The energy storage system includes a plurality of energy storage converters, a plurality of energy storage units, one first insulation impedance detection apparatus, a plurality of second insulation impedance detection apparatuses, and a controller. The energy storage units are connected to direct current ends of the energy storage converters, and are correspondingly connected to the second insulation impedance detection apparatuses, and a parallel connection point of alternating current ends of the plurality of energy storage converters is connected to the first insulation impedance detection apparatus. When a first insulation impedance is abnormal, the controller controls the plurality of second insulation impedance detection apparatuses to detect corresponding second insulation impedances, and sends an alarm signal if there is an abnormal second insulation impedance.

Classes IPC  ?

• G01R 31/08 - Localisation de défauts dans les câbles, les lignes de transmission ou les réseaux
• G01R 27/18 - Mesure d'une résistance par rapport à la terre
• G01R 31/52 - Test pour déceler la présence de courts-circuits, de fuites de courant ou de défauts à la terre
• H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif
• 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

Abrégé

A charging pile includes one or more groups of charging connectors, a thermal management system, a first liquid outlet connector, and a first liquid inlet connector. Each group of charging connectors is configured to output electric energy to an electric vehicle, the first liquid outlet connector is configured to connect to a liquid injection port of the electric vehicle, and the first liquid inlet connector is configured to connect to a liquid return port of the electric vehicle. The thermal management system forms a coolant circulation loop with the electric vehicle via the first liquid outlet connector and the first liquid inlet connector, so that the thermal management system dissipates heat from a power battery of the electric vehicle. In addition, the thermal management system may further provide coolant for a liquid cooling cable connected to each group of charging connectors.

Classes IPC  ?

• H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage
• B60L 53/16 - Connecteurs, p. ex. fiches ou prises, spécialement adaptés pour recharger des véhicules électriques
• B60L 53/18 - Câbles spécialement adaptés pour recharger des véhicules électriques
• B60L 53/302 - Refroidissement des équipements de charge
• H01M 10/613 - Refroidissement ou maintien du froid
• H01M 10/625 - Véhicules
• H01M 10/6568 - Liquides caractérisés par des circuits d'écoulement. p. ex. boucles, situés à l'extérieur des éléments ou des boîtiers des éléments

Abrégé

A power supply module includes a voltage conversion circuit, a secondary-side feedback circuit, and an isolation circuit. The voltage conversion circuit is configured to convert a direct current input voltage into a direct current output voltage. The secondary-side feedback circuit is configured to obtain the direct current output voltage and output a sampling voltage based on the direct current output voltage. The isolation circuit is configured to output a feedback signal in response to the sampling voltage. The control circuit is configured to: in response to not receiving the feedback signal, output an open-loop control signal to the voltage conversion circuit; and in response to open-loop pule generation information meeting a preset condition, stop outputting the open-loop control signal.

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 1/32 - Moyens pour protéger les convertisseurs autrement que par mise hors circuit automatique

Abrégé

The battery pack includes a housing, and a battery module, a plurality of busbars, and an insulated first isolation tape that are accommodated in the housing. The battery module includes a plurality of cells arranged in a length direction of the battery pack, the plurality of busbars are disposed on a surface on which poles of the plurality of cells are located, two adjacent cells in the plurality of cells are electrically connected via one of the plurality of busbars, and the first isolation tape extends in the length direction of the battery pack and covers a surface that is of the plurality of busbars and that is away from the plurality of cells. There is a gap between the first isolation tape and pressure relief valves of the plurality of cells in a direction in which the poles and the pressure relief valves are spaced from each other.

Classes IPC  ?

• H01M 50/507 - Interconnecteurs pour connecter les bornes des batteries adjacentesInterconnecteurs pour connecter les cellules en dehors d'un boîtier de batterie comprenant un arrangement de plusieurs barres omnibus réunies dans une structure de conteneur, p. ex. modules de barres omnibus
• H01M 10/658 - Moyens de commande de la température associés de façon structurelle avec les éléments par isolation ou protection thermique
• 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 50/291 - 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 caractérisés par leur forme
• H01M 50/293 - 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 caractérisés par le matériau
• H01M 50/342 - Aménagements non refermables

Abrégé

The embodiments of the present application relate to the technical field of power electronics. Disclosed is an uninterruptible power supply, which solves the problem of how to ensure the continuity of power supply to a load end while protecting a switch device located on a line from damage during the switching between a main circuit and a bypass. The specific solution is: an uninterruptible power supply device comprising a main circuit, a bypass and a load end, wherein both the main circuit and the bypass are configured to supply power to the load end; an inverter circuit and a switch are provided on the main circuit, an output end of the inverter circuit is connected to the switch, and the switch is configured to control the connection or disconnection between the output end of the inverter circuit and the load end; and a bidirectional conduction device is connected in series to a fuse, the bidirectional conduction device and the fuse, which are connected in series, are connected in parallel to the switch, the fuse is configured to open when a fault current flows through the bidirectional conduction device and the fault current is greater than a first current threshold, and the bidirectional conduction device is configured to be turned on during the switching from supplying power to the load end by the bypass to supplying power to the load end by the main circuit.

Classes IPC  ?

• H02J 9/04 - 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

Abrégé

The present application relates to the field of new energy vehicles, and provides a range-extended powertrain for implementing seamless range extension, a control method and a vehicle, which can be applied to range-extended electric vehicles. The range-extended powertrain comprises a generator, a motor controller and a resolver. The generator is used for connecting to a range extension engine by means of a drive shaft, and the range extension engine is used for outputting power generation torque to the drive shaft so as to drive a rotor of the generator to rotate. The resolver is used for measuring the position angle of the rotor. The motor controller is used for outputting, during a process in which the range extension engine outputs the power generation torque to the drive shaft so as to drive the rotor of the generator to rotate, a current to the generator so as to control the generator to output vibration suppression torque to the drive shaft, the vibration suppression torque and the power generation torque having opposite directions, and the magnitude of the vibration suppression torque changing along with changes of the position angle of the rotor indicated by the resolver. The present solution involves high position detection accuracy and can suppress vibration and noise obviously, thus improving the levels of comfort and NVH of vehicles.

Classes IPC  ?

• B60W 20/15 - Stratégies de commande spécialement adaptées à la réalisation d’un effet particulier
• B60W 20/17 - Stratégies de commande spécialement adaptées à la réalisation d’un effet particulier pour réduire le bruit
• B60W 10/08 - Commande conjuguée de sous-ensembles de véhicule, de fonction ou de type différents comprenant la commande des ensembles de propulsion comprenant la commande des unités de traction électrique, p. ex. des moteurs ou des générateurs
• B60W 10/06 - Commande conjuguée de sous-ensembles de véhicule, de fonction ou de type différents comprenant la commande des ensembles de propulsion comprenant la commande des moteurs à combustion
• B60W 30/20 - Réduction des vibrations dans la chaîne cinématique
• B60L 50/62 - 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 par des batteries chargées par des générateurs entraînés par le moteur, p. ex. des véhicules électriques hybrides du type série chargées par des générateurs à faible puissance principalement destinés à venir en appui aux batteries, p. ex. par des prolongateurs d’autonomie

Abrégé

The present application provides a motor controller module, a motor controller, a powertrain, and an electric vehicle. The motor controller module comprises a bus capacitor and a heat dissipation plate, the heat dissipation plate is stacked on the outer side of a housing, and one side surface of the heat dissipation plate is used for fixing a three-phase bridge arm. The housing comprises a recess, and the recess is used for accommodating a partition plate. One surface of the partition plate is used for forming a liquid cooling cavity together with the recess bottom of the recess and part of the peripheral wall of the recess, and the other surface of the partition plate is used for forming another liquid cooling cavity together with the other side surface of the heat dissipation plate and the other part of the peripheral wall of the recess. The maximum distance between the other surface and the recess bottom of one recess is less than the depth of the recess. The heat dissipation plate, the partition plate, and the recess of the housing are used to form a double-layer flow channel, to cool the bus capacitor and the three-phase bridge arm, thereby improving the cooling efficiency and integration level of the motor controller, and facilitating the miniaturization of the motor controller.

Classes IPC  ?

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

Abrégé

A trench-gate planar-gate semiconductor device with monolithically integrated Schottky barrier diode and Junction Schottky barrier diode, where the semiconductor device includes at least one semiconductor cell. The semiconductor cell includes: a substrate arranged at a bottom surface of the semiconductor cell; a vertical channel section placed above the substrate; a planar channel section formed above the substrate and below a trench that is formed on both sides of the vertical channel section; a Schottky section placed above the substrate; and a Junction Schottky section placed above the substrate. The vertical channel section and the Schottky section are placed in a mesa section of the semiconductor device along a first direction parallel to the bottom surface. The planar channel section and the Junction Schottky section are placed below the trench along the first direction parallel to the bottom surface.

Classes IPC  ?

• H10D 84/00 - Dispositifs intégrés formés dans ou sur des substrats semi-conducteurs qui comprennent uniquement des couches semi-conductrices, p. ex. sur des plaquettes de Si ou sur des plaquettes de GaAs-sur-Si
• H10D 8/00 - Diodes
• H10D 8/01 - Fabrication ou traitement
• H10D 8/60 - Diodes à barrière de Schottky
• H10D 12/00 - Dispositifs bipolaires contrôlés par effet de champ, p. ex. transistors bipolaires à grille isolée [IGBT]
• H10D 12/01 - Fabrication ou traitement
• H10D 30/01 - Fabrication ou traitement
• H10D 30/66 - Transistors FET DMOS verticaux [VDMOS]
• H10D 62/10 - Formes, dimensions relatives ou dispositions des régions des corps semi-conducteursFormes des corps semi-conducteurs
• H10D 64/27 - Électrodes ne transportant pas le courant à redresser, à amplifier, à faire osciller ou à commuter, p. ex. grilles

Abrégé

Provided in the embodiments of the present application is a power converter, relating to the technical field of heat dissipation devices, and is used for ameliorating the problem of low heat dissipation efficiency of a radiator. The power converter comprises at least one radiator having a multi-layer flow channel, and a power component. The radiator comprises a cover body, a jet plate, and a bottom plate, which are stacked. The power component is arranged on a side of the bottom plate facing away from the cover body. The cover body is internally provided with a first liquid distribution cavity. A second liquid distribution cavity is formed between the jet plate and the cover body. A heat dissipation cavity is formed between the bottom plate and the jet plate. A side of the cover body close to the jet plate has a liquid distribution hole, and the first liquid distribution cavity communicates with the second liquid distribution cavity by means of the liquid distribution hole. A portion of the jet plate located inside of the second liquid distribution cavity is provided with a plurality of jet holes. The second liquid distribution cavity communicates with the heat dissipation cavity by means of the jet holes. The orthogonal projection of the liquid distribution hole on the surface of the jet plate facing away from the bottom plate falls outside of the jet holes. The power converter is used for improving heat dissipation efficiency.

Classes IPC  ?

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

Abrégé

An inverter (21), a maximum power point tracking method, and a photovoltaic power generation system (2). In the inverter, an input of a DC/DC conversion circuit (210a, 210b,..., 210n) is connected to an output of a converter array (20a, 20b,..., 20n), an input of a DC/AC conversion circuit (211) is connected to an output of the DC/DC conversion circuit, and an output of the DC/AC conversion circuit is connected to a power grid (4); and a controller (212) controls the DC/DC conversion circuit to periodically perform the following operations: controlling the DC/DC conversion circuit to be in a maximum power tracking mode so as to perform maximum power point tracking on the converter array; after a preset duration, controlling the DC/DC conversion circuit to exit the maximum power tracking mode, and controlling the input power of the DC/DC conversion circuit to decrease by a preset power value; and when the input power of the DC/DC conversion circuit decreases by the preset power value, controlling the DC/DC conversion circuit to enter the maximum power tracking mode again, and identifying an actual maximum power point of the converter array.

Classes IPC  ?

• H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
• 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
• H02M 1/00 - Détails d'appareils pour transformation

Abrégé

An inverter system includes a plurality of inverters and a communication apparatus. The inverter is configured to convert a direct current into an alternating current. A first inverter is connected to at least one second inverter through a power line, and the first inverter communicates with the second inverter through the power line based on a first protocol stack. The communication apparatus is connected to the first inverter. A second protocol stack and a third protocol stack are included. The communication apparatus is configured to communicate with the first inverter based on the second protocol stack, and communicate with a management device based on the third protocol stack.

Classes IPC  ?

• H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
• H02J 3/46 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs contrôlant la répartition de puissance entre les générateurs, convertisseurs ou transformateurs
• H02J 13/00 - Circuits pour pourvoir à l'indication à distance des conditions d'un réseau, p. ex. un enregistrement instantané des conditions d'ouverture ou de fermeture de chaque sectionneur du réseauCircuits pour pourvoir à la commande à distance des moyens de commutation dans un réseau de distribution d'énergie, p. ex. mise en ou hors circuit de consommateurs de courant par l'utilisation de signaux d'impulsion codés transmis par le réseau

Abrégé

The present disclosure relates to the technical field of secondary batteries. Disclosed are a battery pack and an energy storage system. The battery pack comprises a housing and a battery module; the battery module comprises a plurality of battery cells arranged in a first direction; a partition plate and a first baffle are provided between a top surface of the battery module and a top wall of the housing; the partition plate covers the top surface of the battery module; one end of the first baffle abuts against the top wall of the housing, and the other end thereof abuts against the battery module or the partition plate; the first baffle surrounds the periphery of the top surface of the battery module; the partition plate, the top wall of the housing, and the first baffle form a first exhaust channel; an explosion-proof valve is provided on a side wall of the housing, and the explosion-proof valve is communicated with an outlet of the first exhaust channel; the plurality of battery cells are each provided with a pressure relief valve; the partition plate comprises a plurality of valve actuation structures; and the plurality of valve actuation structures are respectively arranged opposite to the pressure relief valves of the plurality of battery cells. The first exhaust channel blocks the ejected substances from the battery cells from spreading to the outer side and bottom region of the battery module, thereby avoiding the aggravation of thermal runaway and the risk of electrical runaway, improving the safety of the battery pack.

Classes IPC  ?

• H01M 50/35 - Évacuation des gaz comprenant des passages allongés, tortueux ou en forme de labyrinthe
• H01M 50/30 - Aménagements pour faciliter l’échappement des gaz
• H01M 50/325 - Aménagements refermables comprenant des organes de soupape déformables, p. ex. élastiques ou flexibles

Abrégé

A power converter is configured to convert a direct current from a photovoltaic module into an alternating current, including a housing, one or more power modules, and a heat sink. The housing is configured to accommodate the power module. The heat sink includes a substrate, one or more heat pipes, and a plurality of heat dissipation fins. One surface of the substrate is attached to the power module. The heat pipe is further embedded in the surface of the substrate. The heat dissipation fins are disposed on the other surface of the substrate. The surface of the substrate is disposed opposite to the other surface of the substrate. An orthographic projection of the heat pipe on the surface that is of the substrate and that is attached to the power module is located on an outer side of an orthographic projection of the power module on the surface.

Classes IPC  ?

• H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage
• 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 7/14 - Montage de la structure de support dans l'enveloppe, sur cadre ou sur bâti

Abrégé

An inverter device includes an inverter circuit, a housing, a first component, and a second component. The inverter circuit includes a circuit substrate, a switching device, and a through-hole device. Pins of the switching device and pins of the through-hole device are mounted on a same surface of the circuit substrate. A surface, facing the circuit substrate, of a bottom plate of the housing includes a supporting component. A body of the switching device is carried on the supporting component. The first component is located between the body of the switching device and the supporting component. The second component is configured to connect the body of the switching device to the supporting component. The pins of the switching device and the pins of the through-hole device are mounted on the same surface of the circuit substrate, and the first component and the second component are disposed.

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

Abrégé

Provided in the present application are a power module and a power conversion device. The power module comprises power units and a heat sink. The heat sink comprises a housing; in the direction of thickness of the heat sink, the housing is arranged on one side of the power units. The housing comprises liquid cavities, a liquid inlet and a liquid outlet, wherein the liquid cavities include liquid distribution cavities, liquid collection cavities and heat exchange cavities; in the direction of length of the heat sink, the liquid collection cavities are located on one side of the liquid distribution cavities, and the heat exchange cavities are located on one side of the liquid collection cavities and are close to the liquid distribution cavities. In the direction of thickness of the heat sink, the heat exchange cavities are located on one side of the liquid distribution cavities and are close to the power units. The liquid inlet is in communication with a liquid distribution cavity, and the liquid outlet is in communication with a liquid collection cavity. The housing is provided with jet holes and flow-through holes, wherein the jet holes extend in the direction of thickness of the heat sink, the jet holes are in communication with the liquid distribution cavities and the heat exchange cavities, and the flow-through holes are in communication with the heat exchange cavities and the liquid collection cavities. The present application ensures that a cooling medium in the heat exchange cavities can provide overall heat dissipation for the power units, thereby facilitating a miniaturized design.

Classes IPC  ?

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

Abrégé

An energy storage power generation system and a control method thereof. When a transient fault occurs in the power grid, the plurality of power conversion systems may enter a transient-state operating mode from a steady-state operating mode, and a parallel expansion multiple of the energy storage power generation system is less than a transient overload multiple. In embodiments, a physical characteristic of transient overloading and a short-time overload capability of the power conversion system are fully used, and the power grid is supported when a power grid fault is detected. This solution simplifies an architecture of the system and increases efficiency of the system. It is easy to understand that because a quantity of power conversion systems is reduced and costs of the system are also reduced.

Classes IPC  ?

• H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif
• H02J 3/32 - Dispositions pour l'équilibrage de charge dans un réseau par emmagasinage d'énergie utilisant des batteries avec moyens de conversion
• H02J 3/46 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs contrôlant la répartition de puissance entre les générateurs, convertisseurs ou transformateurs
• 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 7/487 - Onduleurs bloqués au point neutre

Abrégé

The present application provides a liquid-cooled power module for a motor controller, a motor controller, a powertrain, and an electric vehicle. The liquid-cooled power module comprises an inverter module and a heat dissipation plate. The heat dissipation plate comprises two side surfaces; the two side surfaces face away from each other in the thickness direction of the heat dissipation plate; one side surface is used for fixing a plurality of power modules of a three-phase bridge arm of the inverter module, and the other side surface is used for enclosing another heat dissipation plate to form a liquid-cooled heat dissipation cavity; the other side surface comprises a recess and a plurality of heat dissipation teeth; the recess is oriented along the thickness direction of the heat dissipation plate toward the plurality of power modules; each heat dissipation tooth extends from the bottom of the recess along the stacking direction of the power modules and the heat dissipation plate; and the extension length of each of at least some of the heat dissipation teeth is greater than the depth of the recess. A downwardly oriented recess and a plurality of downwardly sunken heat dissipation teeth are formed on the other side surface, thereby increasing the heat dissipation area, improving the cooling efficiency, enhancing the integration density of the heat dissipation plate, reducing the volume of the liquid-cooled power module, and thus allowing for miniaturization of the motor controller.

Classes IPC  ?

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

Provided in the present application are a power module and a power device. The power module comprises a substrate, a first pre-packaged body, a first metal lead-out layer and a plastic packaging body, wherein the substrate, the first pre-packaged body and the first metal lead-out layer are sequentially stacked in a first direction, and the plastic packaging body packages the substrate, the first pre-packaged body and the first metal lead-out layer. The first pre-packaged body comprises a first chip, a first trace layer and an insulating medium, wherein the first chip and the first trace layer are stacked and are both located in the insulating medium; the first chip is located between the substrate and the first trace layer in the first direction; the first trace layer is electrically connected to the first chip; and the first trace layer is electrically connected to the first metal lead-out layer. Since an embedded first pre-packaged body is used, a reduction in the parasitic inductance and parasitic resistance inside a power module is facilitated. By means of providing the first metal lead-out layer, electrical interconnection outside the power module is realized, thereby facilitating an improvement in the layout flexibility of electrical connection points of the power module.

Classes IPC  ?

• H01L 23/495 - Cadres conducteurs

Abrégé

The present application relates to the technical field of energy storage, and provides a battery pack and an energy storage system. A DC/DC conversion circuit in the battery pack provided by the present application is used for providing a first excitation current for a plurality of battery cells. An impedance detection circuit is used for detecting a second excitation current flowing through the plurality of battery cells, detecting a voltage generated by the second excitation current at two ends of the battery pack, and determining the impedance of the battery pack on the basis of the second excitation current and the voltage. The DC/DC conversion circuit and the impedance detection circuit are both provided in the battery pack, and the process in which the DC/DC conversion circuit provides the first excitation current and the process in which the impedance detection circuit detects the second excitation current and the voltage and determines the impedance would not affect the normal operation (such as normal charging and discharging) of the battery pack. Therefore, on-line detection of the impedance of the battery pack is achieved during operation of the battery pack. In this way, on-line monitoring of the state of health of the battery pack can be achieved, thereby ensuring that potential safety risks of the battery pack can be detected in a timely manner.

Classes IPC  ?

• G01R 31/389 - Mesure de l’impédance interne, de la conductance interne ou des variables similaires
• G01R 31/3842 - Dispositions pour la surveillance de variables des batteries ou des accumulateurs, p. ex. état de charge combinant des mesures de tension et de courant
• H01M 10/48 - Accumulateurs combinés à des dispositions pour mesurer, tester ou indiquer l'état des éléments, p. ex. le niveau ou la densité de l'électrolyte
• H01M 10/42 - Procédés ou dispositions pour assurer le fonctionnement ou l'entretien des éléments secondaires ou des demi-éléments secondaires

Abrégé

The present application belongs to the technical field of energy storage, and provides a battery pack and an energy storage system. The battery pack provided in the present application is provided with a DC/DC conversion circuit, and the DC/DC conversion circuit can provide a first excitation current for a plurality of battery cells in the battery pack. A BMS in the battery pack can detect, by means of a current sampling circuit, a second excitation current flowing through the plurality of battery cells, and measure the voltages generated by the second excitation current at two ends of each battery cell to then determine the impedance of each battery cell on the basis of the second excitation current and the voltages. Since the DC/DC conversion circuit is disposed independent of the BMS and is not integrated into the BMS, the heat dissipation performance of the BMS is not affected when the DC/DC conversion circuit provides the first excitation current. Correspondingly, the first excitation current provided by the DC/DC conversion circuit can be large, thereby ensuring that the voltages sampled by the BMS are large, so as to accurately measure the impedances of the battery cells.

Classes IPC  ?

• H01M 10/48 - Accumulateurs combinés à des dispositions pour mesurer, tester ou indiquer l'état des éléments, p. ex. le niveau ou la densité de l'électrolyte
• 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
• G01R 31/389 - Mesure de l’impédance interne, de la conductance interne ou des variables similaires

Abrégé

A three phase power conversion apparatus with carrier based wide range discontinuous PWM (WDPWM) control for three phase flying capacitor multilevel inverter is disclosed. The power conversion apparatus of the disclosed embodiments provides a wide inverter input voltage range, such as for example 600 – 800Vdc operation with WDPWM, which provides high efficiency.

Classes IPC  ?

• H02M 7/483 - Convertisseurs munis de sorties pouvant chacune avoir plus de deux niveaux de tension
• H02M 1/34 - Circuits d'amortissement

Abrégé

A battery pack. The battery pack comprises a casing, wherein the casing is configured to accommodate a battery cell, and an explosion-proof valve is provided on a wall of the casing. The explosion-proof valve comprises a valve body and a valve cover, wherein the valve body comprises an inner cavity, the valve cover is configured to seal the inner cavity, the valve body is provided with an air vent, and the air vent is configured to communicate the inner cavity with the interior of the casing. A cover is disposed in the casing, the cover comprises a first side plate, the projection of the first side plate on the wall covers the air vent, and the first side plate is provided with a plurality of first through holes. When thermal runaway occurs in the battery cell, a solid component released by the battery cell flows to the explosion-proof valve along with a high-temperature gas, and the first side plate of the cover can block the solid component or an electrolyte released by the battery cell when thermal runaway occurs, so as to prevent the solid component or the electrolyte from blocking the explosion-proof valve and thus damaging the explosion-proof valve. Meanwhile, the high-temperature gas generated by the battery cell when thermal runaway occurs can be released from the plurality of first through holes to the explosion-proof valve, and then released to the outside of the battery pack by means of the explosion-proof valve, thereby ensuring the pressure relief capability of the battery pack.

Classes IPC  ?

• H01M 50/244 - Boîtiers secondairesBâtisDispositifs de suspensionDispositifs de manutentionSupports caractérisés par leur procédé de montage
• H01M 50/242 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports caractérisés par les propriétés physiques des boîtiers ou des bâtis, p. ex. dimensions adaptés pour protéger les batteries contre les vibrations, les collisions ou le gonflement
• H01M 50/317 - Aménagements refermables
• H01M 50/333 - Soupapes d’évent à ressort
• H01M 50/358 - Passages externes d’évacuation des gaz sur le couvercle ou sur le boîtier de batterie

Abrégé

The embodiments of the present application relate to the technical field of energy storage. Provided are a battery pack with a flue gas treatment function, and an energy storage cabinet comprising the battery pack. The battery pack comprises a first battery and a flue gas treatment device, wherein the first battery comprises a first battery case, a first pressure relief valve and a plurality of battery cells; the first pressure relief valve is disposed on the first battery case and is configured to discharge gas in the first battery case; the plurality of battery cells are disposed within the first battery case; the flue gas treatment device comprises a mounting case and a catalyst; the mounting case is fixed on the first battery case and comprises a chamber; the mounting case has a first inlet and an outlet that are in communication with the chamber, with the first inlet being sealingly connected to the first pressure relief valve; and the catalyst is disposed in the chamber and used for catalytic combustion. Flue gas generated after thermal runaway of a battery can be treated, thereby reducing the risk of the accumulation, combustion and explosion of flammable gases.

Classes IPC  ?

• H01M 50/383 - Moyens pare-flammes ou moyens de prévention de l’allumage
• B01D 53/86 - Procédés catalytiques
• H01M 10/52 - Enlèvement des gaz situés à l'intérieur de l'élément secondaire, p. ex. par absorption

Abrégé

An extended-range power assembly and an extended-range electric vehicle. The extended-range power assembly comprises a generator, an electric motor, two gear sets (3, 4) and two housings (1, 2), wherein the two housings (1, 2) enclose and then accommodate the two gear sets (3, 4); the electric motor drives wheels of a vehicle by means of one gear set (3), and the other gear set (4) is in transmission connection with an engine and the generator; one gear set (3) comprises an input shaft (31), an intermediate shaft (32) and an output shaft (33); the housing (2) comprises three bearing chambers (21, 22, 23) and two oil passages (24, 25); the three bearing chambers (21, 22, 23) are configured to fix outer rings of bearings of the input shaft (31), the intermediate shaft (32) and the output shaft (33), respectively; and one oil passage (24) communicates the input-shaft bearing chamber (21) with the intermediate-shaft bearing chamber (22), and the other oil passage (25) communicates the intermediate-shaft bearing chamber (22) with the output-shaft bearing chamber (23).

Classes IPC  ?

• F16H 57/04 - Caractéristiques relatives à la lubrification ou au refroidissement
• F16H 57/021 - Structures de support d'arbres, p. ex. parois de séparation, orifices de logement de paliers, parois de carter ou couvercles avec paliers
• F16H 57/023 - Montage ou installation d'engrenages ou d'arbres dans les boîtes de vitesses, p. ex. procédés ou moyens d'assemblage
• B60K 1/00 - Agencement ou montage des ensembles de propulsion électriques
• B60L 50/62 - 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 par des batteries chargées par des générateurs entraînés par le moteur, p. ex. des véhicules électriques hybrides du type série chargées par des générateurs à faible puissance principalement destinés à venir en appui aux batteries, p. ex. par des prolongateurs d’autonomie

Abrégé

The present application provides a disc-type motor, a power generation assembly, and an electric vehicle. The disc-type motor comprises a rotor, an adapter shaft, and a stator. The adapter shaft comprises a first section, a second section, and a third section which are sequentially adjacently arranged in the axial direction of the disc-type motor. The first section is used for being directly fixed to a flange of an engine crankshaft, so that the adapter shaft and the rotor are supported on the crankshaft, the second section is used for passing through a shaft hole of the rotor and fixing the rotor in the circumferential direction of the disc-type motor, and the third section is used for passing through a shaft hole of the stator. The outer diameter of the first section is greater than the inner diameter of the shaft hole of one rotor and the outer diameter of the second section, so that the first section is stably connected to the crankshaft. The outer diameter of the second section is greater than or equal to the outer diameter of the third section, and the outer diameter of the third section is smaller than the inner diameter of the shaft hole of one stator, such that the adapter shaft of the generator is decoupled from the stator, thereby simplifying the structure of the disc-type motor, and improving the performance stability and reliability of the disc-type motor.

Classes IPC  ?

• H02K 7/18 - Association structurelle de génératrices électriques à des moteurs mécaniques d'entraînement, p. ex. à des turbines
• H02K 7/08 - Association structurelle avec des paliers
• B60L 50/62 - 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 par des batteries chargées par des générateurs entraînés par le moteur, p. ex. des véhicules électriques hybrides du type série chargées par des générateurs à faible puissance principalement destinés à venir en appui aux batteries, p. ex. par des prolongateurs d’autonomie

Abrégé

A split-type electro-mechanical brake apparatus and a vehicle. The electro-mechanical brake apparatus includes a brake motor, a reducer, a ball screw, and a split piston. One end of the ball screw is configured to be in transmission connection to the brake motor through the reducer, while the other end is configured to drive the split piston, and the split piston is configured to push a same friction plate jointly through the two split protrusions to brake a wheel. The split piston includes two end faces that face away from each other, the transmission groove of the one end face is configured to be in transmission connection to the other end of the ball screw. The two split protrusions are arranged at a spacing on the other end face. In embodiments, pressure applied to the friction plate is more even.

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
• F16D 55/00 - Freins à surfaces de freinage substantiellement radiales pressées l'une contre l'autre dans une direction axiale, p. ex. freins à disques
• 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 65/00 - Éléments constitutifs ou détails des freins
• 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 121/24 - Électrique ou magnétique utilisant des moteurs
• F16D 125/40 - Vis-écrou

Abrégé

A powertrain, a controller, and a hybrid electric vehicle are described, where the powertrain includes a generator system, an electric drive system, and a bus capacitor. The generator system includes three first bridge arms connected in parallel and a generator. Two ends of each first bridge arm are respectively connected to two ends of the bus capacitor. A bridge arm midpoint of each first bridge arm connects to a three-phase winding of the generator. The electric drive system includes three second bridge arms connected in parallel and a motor. Two ends of each second bridge arm respectively connect to the two ends of the bus capacitor. A bridge arm midpoint of each second bridge arm connects to a three-phase winding of the motor.

Classes IPC  ?

• H02J 7/14 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries pour la charge de batteries par des générateurs dynamo-électriques entraînés à vitesse variable, p. ex. sur véhicule
• B60K 6/26 - Agencement ou montage de plusieurs moteurs primaires différents pour une propulsion réciproque ou commune, p. ex. systèmes de propulsion hybrides comportant des moteurs électriques et des moteurs à combustion interne les moteurs primaires étant constitués de moteurs électriques et de moteurs à combustion interne, p. ex. des VEH caractérisés par des appareils, des organes ou des moyens spécialement adaptés aux VEH caractérisés par les moteurs ou les générateurs
• B60K 6/28 - Agencement ou montage de plusieurs moteurs primaires différents pour une propulsion réciproque ou commune, p. ex. systèmes de propulsion hybrides comportant des moteurs électriques et des moteurs à combustion interne les moteurs primaires étant constitués de moteurs électriques et de moteurs à combustion interne, p. ex. des VEH caractérisés par des appareils, des organes ou des moyens spécialement adaptés aux VEH caractérisés par les moyens d'accumulation d'énergie électrique, p. ex. les batteries ou les condensateurs
• H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries

Abrégé

A power converter and a detection method thereof. The power converter includes a power conversion circuit and a control circuit. Three branches are formed between three phase wires of the power conversion circuit and an N wire, and the three branches form current imbalance branches. When the control circuit determines that the differences are less than the specified threshold, it is considered that the N wire is normal. When the N wire is faulty, a voltage of the N wire deviates from a center point due to the current imbalance branches. Therefore, differences between every two of the three phase voltages are greater than a specified threshold. When the control circuit determines that a difference is greater than the specified threshold, it is considered that the N wire is abnormally connected, and an N-wire fault alarm signal is output.

Classes IPC  ?

• G01R 25/00 - Dispositions pour procéder aux mesures de l'angle de phase entre une tension et un courant ou entre des tensions ou des courants
• H02H 7/122 - Circuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour convertisseursCircuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour redresseurs pour convertisseurs ou redresseurs statiques pour onduleurs, c.-à-d. convertisseurs de courant continu en courant alternatif
• H02M 1/44 - Circuits ou dispositions pour corriger les interférences électromagnétiques dans les convertisseurs ou les onduleurs
• H02M 7/537 - 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

Abrégé

Provided in the embodiments of the present application is a power supply system, the power supply system comprising a power converter and a controller. The power converter is configured to convert a direct current output by a photovoltaic module and/or an energy storage unit into an alternating current, and output same to a load or a power grid. The controller is configured to, on the basis of a target remaining electric quantity, power grid charging enabling, photovoltaic remaining electric energy distribution, energy storage unit discharging enabling, photovoltaic curtailment and a current remaining electric quantity of the energy storage unit, control the energy storage unit to simultaneously receive electric energy provided by the photovoltaic module and the power grid for charging, or control the energy storage unit to only receive electric energy provided by the photovoltaic module for charging; control the power converter such that after the load satisfies a power supply demand, the photovoltaic module preferentially charges the energy storage unit with remaining electric energy of the photovoltaic module, or preferentially supplies power to the power grid; control the power converter to convert the direct current output by the energy storage unit into the alternating current for discharge and output same to the load, or control the energy storage unit not to discharge; and control the photovoltaic module to perform photovoltaic curtailment, or output all electric energy.

Classes IPC  ?

• H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs

Abrégé

1231333113322), the other internal oil passage (132) and an internal oil passage of a generator stator core.

Classes IPC  ?

• F16H 57/04 - Caractéristiques relatives à la lubrification ou au refroidissement
• B60K 6/405 - Carters

Abrégé

The present application provides a dual-motor powertrain capable of split-flow channel cooling and lubrication, and an electric vehicle. A housing of the dual-motor powertrain comprises two motor accommodating cavities and one reducer accommodating cavity. An oil cooling system of the dual-motor powertrain comprises an oil pump, a heat exchanger, a filter, and a plurality of flow channels. The heat exchanger and the filter are used for splitting oil output by the oil pump. An inlet of the heat exchanger is used for directly receiving the oil output by the oil pump and exchanging heat, and the oil output by the heat exchanger is split by means of at least two flow channels and then cools stators and rotors in the two motor accommodating cavities. An inlet of the filter is used for directly receiving the oil output by the oil pump and filtering same, and the oil output by the filter is split by means of at least two flow channels and then lubricates multiple sets of gears and bearings of two reducers in the reducer accommodating cavity. The heat exchanger and the filter are connected in parallel, and cooling and lubrication oil channels are separated, thereby improving the cooling and lubrication effects of the dual-motor powertrain, reducing the oil resistance of the system, and reducing the power consumption of the oil pump.

Classes IPC  ?

• H02K 9/19 - Dispositions de refroidissement ou de ventilation pour machines avec enveloppe fermée et circuit fermé de refroidissement utilisant un agent de refroidissement liquide, p. ex. de l'huile
• H02K 7/116 - Association structurelle avec des embrayages, des freins, des engrenages, des poulies ou des démarreurs mécaniques avec des engrenages
• F16H 57/04 - Caractéristiques relatives à la lubrification ou au refroidissement

Abrégé

A power conversion device, comprising: an enclosure used for accommodating a power board and a power module. The power board is used for bearing the power module, the power module is used for converting a direct current from a photovoltaic module into an alternating current, and the power board is fixedly arranged relative to the enclosure. An inductor comprises a housing, a coil, and a circuit board. The housing is fixedly connected to the enclosure, the housing comprises an opening, the circuit board covers the opening and is fixedly arranged relative to the housing, and a chamber defined by the housing and the circuit board is used for accommodating the coil. The coil comprises two wire outlet ends, and the wire outlet ends are electrically connected to the circuit board. One end of an electrical connector is fixed to the circuit board and electrically connected to the wire outlet ends by means of the circuit board, and the other end of the electrical connector is fixed to the power board and electrically connected thereto. Due to the flat surfaces of the circuit board and the housing, the tolerance between the circuit board and the power board on the horizontal plane perpendicular to a wire exit direction can be minimized, and is no longer constrained by the tolerances of the wire outlet ends in the wire exit direction, facilitating improvement of the installation accuracy of the wire outlet ends and the power board.

Classes IPC  ?

• H05K 7/14 - Montage de la structure de support dans l'enveloppe, sur cadre ou sur bâti

Abrégé

A temperature control system, a vehicle, an energy storage system, and a multi-way valve. The temperature control system includes a plurality of liquid pipes and a multi-way valve. The multi-way valve includes a first valve body and a second valve body. The first valve body includes a first plane, the second valve body includes a second plane, and the first plane and the second plane are parallel and attached to each other. A driver drives the first plane and the second plane to rotate relative to each other around a rotation axis. The first plane includes a plurality of groups of first sector ring openings, the plurality of first sector ring openings are divided into a plurality of rings by using the rotation axis as a circle center and are spaced apart.

Classes IPC  ?

• F16K 11/074 - Soupapes ou clapets à voies multiples, p. ex. clapets mélangeursRaccords de tuyauteries comportant de tels clapets ou soupapesAménagement d'obturateurs et de voies d'écoulement spécialement conçu pour mélanger les fluides dont toutes les faces d'obturation se déplacent comme un tout comportant uniquement des tiroirs à éléments de fermeture articulés à pivot à faces d'obturation planes
• B60H 1/00 - Dispositifs de chauffage, de refroidissement ou de ventilation
• 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
• H01M 10/613 - Refroidissement ou maintien du froid
• H01M 10/625 - Véhicules

Abrégé

A powertrain (10) and an electric vehicle (1) are disclosed. The powertrain (10) includes a die casting housing (100) and a heat exchanger (400), the die casting housing (100) includes a reducer accommodation cavity (111) formed inside the die casting housing (100) through die casting and four holes (170), and the reducer accommodation cavity (111) accommodates a reducer (200); and two holes (170) communicate with a liquid passage in the heat exchanger (400), the other two holes (170) communicate with an oil passage in the heat exchanger (400), openings of the four holes (170) all face the heat exchanger (400), the reducer accommodation cavity (111), the four holes (170), and the heat exchanger (400) are arranged along a first direction, the first direction is perpendicular to an axial direction of a motor (300).

Classes IPC  ?

• 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
• B60K 13/06 - Dispositions des ensembles de propulsion relatives à l'admission d'air de combustion ou à l'échappement des gaz utilisant des parties de la structure même du véhicule comme conduits, p. ex. parties du châssis
• H02K 5/06 - Enveloppes en métal coulé
• H02K 7/116 - Association structurelle avec des embrayages, des freins, des engrenages, des poulies ou des démarreurs mécaniques avec des engrenages
• 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

Abrégé

Embodiments of the present application provide a switch device, an on-grid/off-grid switching device, and a power supply system. The switch device comprises a housing, a driving device, a first contact assembly and a second contact assembly; the driving device, the first contact assembly and the second contact assembly are all mounted on the housing; the first contact assembly and the second contact assembly each comprise two stationary contact terminals and two sets of movable contacts; the two stationary contact terminals of the first contact assembly are each provided with a stationary contact, and the two stationary contact terminals of the second contact assembly are each provided with a stationary contact; when a power grid fails, the driving device is used for simultaneously driving the movable contacts and the stationary contacts of the first contact assembly to be in contact, and the movable contacts and the stationary contacts of the second contact assembly to be separated; and when the power grid works normally, the driving device is used for simultaneously driving the movable contacts and the stationary contacts of the first contact assembly to be separated, and the movable contacts and the stationary contacts of the second contact assembly to be in contact. The embodiments of the present application can simply signal control of the on-grid/off-grid switching device.

Classes IPC  ?

• H01H 3/32 - Mécanismes-moteurs, c.-à-d. pour transmettre la force motrice aux contacts

Abrégé

A power system and a method for starting a power system. The power system includes a first alternating current bus, a plurality of alternating current power supply units, a plurality of switch units, and at least one controller. The controller is configured to: start a primary alternating current power supply unit to output an alternating current voltage to the first alternating current bus, control a secondary alternating current power supply unit to output an alternating current voltage in an open-circuit state, and control the secondary alternating current power supply unit to output a voltage to the first alternating current bus when a bus voltage value is greater than or equal to a second threshold and is still in a rise phase.

Classes IPC  ?

• H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif
• H02J 3/46 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs contrôlant la répartition de puissance entre les générateurs, convertisseurs ou transformateurs

Abrégé

The present application provides a motor having an immersion-cooled stator winding, a power assembly, and an electric vehicle. The motor comprises a stator, a rotor, and an end cover, the rotor being sleeved in a central bore of the stator, and the stator comprising a stator core and a stator winding. The stator core has a plurality of winding slots for accommodating winding coils of the stator winding, and the plurality of winding slots are circumferentially arranged and spaced apart along the stator core. The end cover and the stator core are arranged in the axial direction of the stator core. The end surface of the end cover facing the stator core comprises an annular groove, in the axial direction of the stator core, the size of the annular groove is smaller than the size of the end cover, and the annular groove is configured to accommodate a cooling medium and end portions of the winding coils in the axial direction of the stator core. In this way, when the cooling medium is introduced into the annular groove, the cooling medium can immerse and cool the end portions of the winding coils in the annular groove, thereby improving the heat dissipation effect of the stator winding.

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 1/16 - Noyaux statoriques à encoches pour enroulements
• H02K 3/24 - Enroulements caractérisés par la configuration, la forme ou le genre de construction du conducteur, p. ex. avec des conducteurs en barre avec des canaux ou des conduits pour un agent de refroidissement entre les conducteurs
• H02K 3/48 - Fixation des enroulements sur la structure statorique ou rotorique dans les encoches
• H02K 9/19 - Dispositions de refroidissement ou de ventilation pour machines avec enveloppe fermée et circuit fermé de refroidissement utilisant un agent de refroidissement liquide, p. ex. de l'huile

Abrégé

Provided in the present application are a stator lamination, a flat wire motor stator, a flat wire motor and a powertrain. The stator lamination comprises an inner circumferential face and an outer circumferential face arranged opposite each other in the radial direction of the stator lamination; and the stator lamination comprises a plurality of grooves axially penetrating the stator lamination, wherein the plurality of grooves are arranged at intervals in the circumferential direction of the stator lamination, the distance between each groove and the inner circumferential face being less than the distance between each groove and the outer circumferential face. Each groove comprises a middle portion and one end portion, wherein said one end portion is arranged on the side of the middle portion facing away from the central axis of the stator lamination; in the circumferential direction of the stator lamination, the dimension of said one end portion is smaller than that of the middle portion. In this way, when a stator winding is passed through the middle portions of the grooves of each stator lamination to be wound around a stator core that is formed by laminating a plurality of stator laminations, there is a gap between the stator winding and one end portion of each groove. When a coolant flows into the gap, the coolant can cool the stator winding in the axial direction of the stator lamination, thereby improving the heat dissipation effect of the stator winding.

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 1/16 - Noyaux statoriques à encoches pour enroulements
• H02K 3/24 - Enroulements caractérisés par la configuration, la forme ou le genre de construction du conducteur, p. ex. avec des conducteurs en barre avec des canaux ou des conduits pour un agent de refroidissement entre les conducteurs
• H02K 3/48 - Fixation des enroulements sur la structure statorique ou rotorique dans les encoches
• H02K 9/19 - Dispositions de refroidissement ou de ventilation pour machines avec enveloppe fermée et circuit fermé de refroidissement utilisant un agent de refroidissement liquide, p. ex. de l'huile

Abrégé

The disclosure relates to a semiconductor device (100), comprising: a die layer (110) comprising a top surface and a bottom surface opposing the top surface; wherein the die layer (110) forms a plurality of unit cells (120) arranged side-by-side across the top surface of the die layer (110), wherein each unit cell (120) comprises a sub cell of a first type (120a) and a sub cell of a second type (120b) which are both integrated in the unit cell (120), wherein the sub cell of the first type (120a) comprises a first electrode (121), a second electrode (122) and a third electrode (123) formed at the top surface of the die layer (110), a first one of the three electrodes (121, 122, 123) being arranged to enclose a second one of the three electrodes (121, 122, 123); and the first one and the second one of the three electrodes (121, 122, 123) being arranged to enclose a third one of the three electrodes (121, 122, 123); wherein the sub cells of the first type (120a) form high electron mobility transistor, HEMT, cells; and wherein the sub cells of the second type (120b) form Schottky Barrier Diode, SBD, cells.

Classes IPC  ?

• H10D 84/00 - Dispositifs intégrés formés dans ou sur des substrats semi-conducteurs qui comprennent uniquement des couches semi-conductrices, p. ex. sur des plaquettes de Si ou sur des plaquettes de GaAs-sur-Si
• H10D 8/01 - Fabrication ou traitement
• H10D 8/60 - Diodes à barrière de Schottky
• H10D 30/01 - Fabrication ou traitement
• H10D 30/47 - Transistors FET ayant des canaux à gaz de porteurs de charge de dimension nulle [0D], à une dimension [1D] ou à deux dimensions [2D] ayant des canaux à gaz de porteurs de charge à deux dimensions, p. ex. transistors FET à nanoruban ou transistors à haute mobilité électronique [HEMT]
• H10D 62/824 - Hétérojonctions comprenant uniquement des hétérojonctions de matériaux du groupe III-V, p. ex. des hétérojonctions GaN/AlGaN
• H10D 64/23 - Électrodes transportant le courant à redresser, à amplifier, à faire osciller ou à commuter, p. ex. sources, drains, anodes ou cathodes
• H10D 84/01 - Fabrication ou traitement

Abrégé

A wireless charging device, an electronic terminal device, and a wireless charging system. The alternating current excitation source is configured to output alternating electric energy. The transmitting electrode plate is electrically connected to the alternating current excitation source, and is thermally isolated from the alternating current excitation source. The transmitting electrode plate is configured to form an alternating electric field coupling path with a receiving electrode plate of the electronic terminal device. The alternating current excitation source is configured to transmit the alternating electric energy to the electronic terminal device through the alternating electric field coupling path. Based on this design or implementation, heat generated by a coupling mechanism is effectively reduced, and then heat emitted by the electronic terminal device is reduced. This can help improve a wireless charging speed of the electronic terminal device.

Classes IPC  ?

• H02J 50/05 - Circuits ou systèmes pour l'alimentation ou la distribution sans fil d'énergie électrique utilisant un couplage capacitif
• H02J 50/00 - Circuits ou systèmes pour l'alimentation ou la distribution sans fil d'énergie électrique
• H02J 50/70 - Circuits ou systèmes pour l'alimentation ou la distribution sans fil d'énergie électrique mettant en œuvre la réduction des champs de fuite électriques, magnétiques ou électromagnétiques

Abrégé

An energy storage system is provided that includes a cabinet and a liquid cooling unit. The cabinet includes a cabinet door and a cabinet body that are disposed in a hinged connection manner, and the cabinet door may be opened or closed relative to the cabinet body. The cabinet body includes a battery compartment housing a battery module and a power compartment housing a power module. The liquid cooling unit is positioned on a side of the cabinet door opposed from the cabinet body. The liquid cooling unit is connected to the battery module through a first liquid outlet pipe and a first liquid return pipe, and the liquid cooling unit is connected to the power module through a second liquid outlet pipe and a second liquid return pipe.

Classes IPC  ?

• H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage
• H01M 10/613 - Refroidissement ou maintien du froid
• H01M 10/627 - Installations fixes, p. ex. ensemble de production d’énergie tampon ou de production d’énergie de secours
• H01M 10/6569 - Fluides qui subissent un changement ou une transition de phase liquide-gaz, p. ex. évaporation ou condensation
• 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

Abrégé

Provided in the embodiments of the present application are a battery pack, an energy storage apparatus and a method for monitoring the state of charge of a battery pack. The battery pack comprises a plurality of battery cells, the plurality of battery cells each comprising a casing and, accommodated in the casing, a positive tab and a negative tab. The plurality of battery cells comprise sodium-ion batteries and lithium-ion batteries, the negative tabs of the sodium-ion batteries being electrically connected to the casings of the sodium-ion batteries, the positive tabs of the lithium-ion batteries being electrically connected to the casings of the lithium-ion batteries, and the casings of the sodium-ion batteries being electrically connected to the casings of the lithium-ion batteries. In the present application, the sodium-ion batteries are introduced into a lithium iron phosphate battery system so as to reduce costs, and when the sodium-ion batteries and the lithium iron phosphate batteries are integrated into a whole, no wire connection is required, thus reducing the complexity of connection and the total internal resistance. In addition, by means of a sodium-ion battery charge-discharge curve, the estimation accuracy of the SOC of the battery pack is estimated.

Classes IPC  ?

• H01M 10/42 - Procédés ou dispositions pour assurer le fonctionnement ou l'entretien des éléments secondaires ou des demi-éléments secondaires
• H01M 10/052 - Accumulateurs au lithium
• H01M 10/054 - Accumulateurs à insertion ou intercalation de métaux autres que le lithium, p. ex. au magnésium ou à l'aluminium
• G01R 31/378 - Dispositions pour le test, la mesure ou la surveillance de l’état électrique d’accumulateurs ou de batteries, p. ex. de la capacité ou de l’état de charge spécialement adaptées à un type de batterie ou d’accumulateur
• G01R 31/388 - Détermination de la capacité ampère-heure ou de l’état de charge faisant intervenir des mesures de tension

Abrégé

Provided in the present application is a power supply and distribution system. The power supply and distribution system comprises a first busbar, a second busbar, a controller, and an uninterruptible power supply. The first busbar is connected to a power grid, and the second busbar is connected to a load. The uninterruptible power supply comprises a main circuit, a bypass circuit, and a maintenance bypass circuit. The main circuit is connected to the first busbar by means of a main switch and is connected to the second busbar by means of an output switch. The bypass circuit is connected to the first busbar by means of a bypass switch and is connected to the second busbar by means of the output switch. The maintenance bypass circuit is connected to the first busbar and the second busbar by means of a maintenance bypass switch. Before being turned on, the maintenance bypass switch performs switching between signals to be sent. On the basis of signals before and after switching, the controller can control the uninterruptible power supply to switch, before the maintenance bypass switch is turned on, from the main circuit to the bypass circuit to connect to the first busbar and the second busbar, so as to prevent, during the maintenance of the uninterruptible power supply, the utility power from the power grid from causing voltage surges to an inverter of the uninterruptible power supply.

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

Abrégé

Provided in the embodiments of the present application are a battery pack and an energy storage device. The battery pack comprises a housing, and a separator, battery modules and battery management units, which are arranged in the housing, wherein the battery management units are arranged on the separator; the separator is fixed in the housing, and divides a space in the housing into a battery compartment and a power distribution compartment that are distributed in a first direction; the battery management units are located in the power distribution compartment; the battery modules are located in the battery compartment; and the battery management units are electrically connected to the battery modules. The present application can achieve the separation of the battery compartment from the power distribution compartment, suppress moisture cross-flow that causes condensation, and reduce the baking of the battery compartment by a board, thereby improving the temperature consistency of batteries at the ends of modules. By means of the design of the structure of a compartment separation board, the compartment separation board has the function of integrated BMU installation; rapid installation is achieved by means of snap-fitting; and during production, assembly preprocessing can be performed on a branch line, and an assembly is then installed in the PACK, such that the assembly and replacement efficiency can be improved.

Classes IPC  ?

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

Abrégé

Provided in the present application are a circuit breaker and an electrical device. The circuit breaker comprises a housing, an operating handle, an operating mechanism, a moving contact assembly, and a static contact. The moving contact assembly comprises a main shaft and a rotating rod each rotatably connected to the housing. A moving contact is located at the end of the rotating rod away from the operating mechanism. The operating handle can control the operating mechanism to drive the main shaft to rotate, so as to enable the moving contact to come into contact with or separate from the static contact. The main shaft is provided with a boss for driving the rotating rod to rotate, so as to enable the moving contact to separate from the static contact. The main shaft is provided with a shift lever, and the shift lever can turn on or off a first micro switch. When the circuit breaker is in a closed state, the boss and the rotating rod are spaced apart from each other, and the shift lever presses the first micro switch to keep the first micro switch turned on. During opening, the operating mechanism drives the main shaft to rotate to move the shift lever away from the first micro switch, and the first micro switch is turned off before the moving contact separates from the static contact, and switches the transmitted signal, so as to adjust the voltage state of an electrical device in advance, ensuring the stability of the output voltage.

Classes IPC  ?

• H01H 71/04 - Moyens pour indiquer l'état du dispositif de commutation
• H01H 71/10 - Mécanismes d'actionnement ou de déclenchement

Abrégé

An inverter for generating an alternate current signal from a direct current signal is provided, including a positive voltage rail and a negative voltage rail. The inverter includes a switching unit, which, in turn, includes an alternating current output and a plurality of switches. Each of the plurality of switches includes a parasitic capacitance. The switching unit is configured to alternatingly switch the positive voltage of the direct current signal, a mid-point voltage between the positive voltage and the negative voltage of the direct current signal, and the negative voltage of the direct current signal to the alternating current output.

Classes IPC  ?

• H02M 7/483 - Convertisseurs munis de sorties pouvant chacune avoir plus de deux niveaux de tension
• H02M 1/00 - Détails d'appareils pour transformation

Abrégé

A dual-electric-motor powertrain (10) with oil collection for differential lubrication, and a vehicle (1). The dual-electric-motor powertrain (10) comprises two electric motors (200) and a speed reducer (300). A powertrain housing (100) is used to form a speed reducer chamber (110) and two electric motor chambers (120). The speed reducer chamber (110) is used for accommodating a parallel-shaft gear set and a differential (320). The powertrain housing (100) comprises a differential shaft hole (130) and two electric motor shaft holes (140). A chamber wall of the speed reducer chamber (110) comprises a bearing groove (112) and an oil-collecting protrusion (111), the oil-collecting protrusion (111) being used for collecting lubricating oil and guiding the lubricating oil to the differential (320). The distance between the center of the bearing groove (112) and the other electric motor shaft hole (140) is greater than the distance between at least one of one electric motor shaft hole (140) or the differential shaft hole (130) and the other electric motor shaft hole (140); and the oil-collecting protrusion (111) is arranged between an intermediate gear (312a) or an output gear (314) of the parallel-shaft gear set and the chamber wall of the speed reducer chamber (110). In the case of a vertical speed reducer, integrating oil-collecting and oil-guiding functions into the oil-collecting protrusion (111) helps prolong the service life of the differential (320) and enhance the structural strength of the powertrain, thereby ensuring driving safety.

Classes IPC  ?

• F16H 57/04 - Caractéristiques relatives à la lubrification ou au refroidissement
• B60K 1/02 - Agencement ou montage des ensembles de propulsion électriques comprenant plus d'un moteur électrique
• F16H 48/42 - Détails de structure caractérisés par des particularités des arbres d'entrée, p. ex. montage des roues dentées d'entraînement sur ceux-ci
• F16H 48/40 - Détails de structure caractérisés par des particularités des carters rotatifs
• B60K 17/16 - Agencement ou montage des transmissions sur les véhicules caractérisées par la disposition, l'emplacement ou le type de mécanisme de transmission du différentiel

Abrégé

The embodiments of the present application relate to the technical field of power electronics. Disclosed are a power conversion apparatus, an uninterruptible power supply and a photovoltaic inverter, which solve the problems of low efficiency and high device costs of existing inverters. The specific solution comprises: providing a power conversion apparatus, the power conversion apparatus comprising at least one inverter circuit, which inverter circuit comprises a switch tube bridge arm, a first switch tube and an inductor, wherein the switch tube bridge arm comprises at least three switch tubes connected in series between a positive direct-current bus and a negative direct-current bus, the first switch tube is connected between a first node of the switch tube bridge arm and a connection point of positive and negative bus capacitors, the inductor is connected to a second node of the switch tube bridge arm, and the first node and the second node are located at different positions in the switch tube bridge arm.

Classes IPC  ?

• H02M 7/5387 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs, p. ex. onduleurs à impulsions à un seul commutateur dans une configuration en pont
• H02M 1/00 - Détails d'appareils pour transformation
• 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
• H02S 40/32 - Composants électriques comprenant un onduleur CC/CA associé au module PV lui-même, p. ex. module CA

Abrégé

An oil-cooled powertrain (10) and an electric vehicle (1). The oil-cooled powertrain (10) comprises a motor (12), a speed reducer (11), a heat exchanger (14), a filtering apparatus (19) and an oil pump (13). The motor (12) is used for driving wheels (40) of the electric vehicle (1) by means of the speed reducer (11). Cooling oil paths of the motor (12) comprise at least one rotor oil path (L3) and at least one stator oil path (L1, L1a, L1b). The filtering apparatus (19) is used for inputting a filtered cooling oil into the heat exchanger (14) for heat exchange. One or more rotor oil paths (L3) are used for receiving the heat-exchanged cooling oil from the heat exchanger (14). One or more stator oil paths (L1, L1a, L1b) are used for receiving the heat-exchanged cooling oil from the heat exchanger (14) and for receiving the filtered cooling liquid from the filtering apparatus (19) by means of a valve (150).

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
• F28D 21/00 - Appareils échangeurs de chaleur non couverts par l'un des groupes

Abrégé

An operating mechanism includes an input shaft, an output shaft, and a connecting rod assembly, and the connecting rod assembly includes an input connecting rod and an output connecting rod. A disconnector includes a plurality of stacked sub-switches, and each sub-switch includes a movable contact and a stationary contact. The input shaft is fastened to the handle, the connecting rod assembly is configured to be in transmission connection to the input shaft and the output shaft, and the output shaft is configured to drive the movable contact to rotate. The handle is configured to drive the input shaft to rotate, and the input shaft is configured to drive the input connecting rod to rotate, so that the input connecting rod collides with the output connecting rod, and the output connecting rod drives the output shaft to rotate, to separate the movable contact from the stationary contact.

Classes IPC  ?

• H01H 19/14 - Organes moteurs, p. ex. bouton rotatif
• H01H 9/00 - Détails de dispositifs de commutation non couverts par
• H01H 9/54 - Circuits non adaptés à une application particulière du dispositif de commutation non prévus ailleurs

Abrégé

In each direct current (DC)/DC conversion circuit and an inverter circuit in an inverter, one temperature detection unit is correspondingly configured for at least one power transistor in each circuit, and the temperature detection unit is disposed near the power transistor. A temperature of the power transistor is detected, to implement detection on the temperature of the power transistor. After receiving temperature information fed back by the temperature detection unit, a sampling control unit controls, based on a preset condition, a corresponding DC/DC conversion circuit to perform derating.

Classes IPC  ?

• H02M 1/32 - Moyens pour protéger les convertisseurs autrement que par mise hors circuit automatique
• 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 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 converter includes a frequency multiplication circuit topology that receives DC power and produces an AC voltage. The frequency multiplication circuit topology has a low frequency switching cell coupled in parallel with the DC power, and a high frequency switching cell coupled between the low frequency switching cell and the AC voltage. The low frequency switching cell includes a first and second switching leg coupled in series across the DC input power. The high frequency switching cell includes a third and fourth switching leg coupled in parallel across midpoints of the first and second switching leg, and an autotransformer coupled to the third and fourth switching legs and configured to produce the AC voltage. The low frequency switching cell is switched at a line frequency of the AC voltage, and the high frequency switching cell is switched at a frequency of ten or more times the line frequency.

Classes IPC  ?

• 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 7/487 - Onduleurs bloqués au point neutre

Abrégé

This application discloses a liquid cooling heat dissipation apparatus, a motor control unit, a powertrain, and an electric vehicle. The liquid cooling heat dissipation apparatus includes a cover plate, a middle partition plate, a separator wall, and a bottom plate. The cover plate, the middle partition plate, and the bottom plate are sequentially stacked in a first direction. A gap between the cover plate and the middle partition plate forms a first cavity, and a gap between the bottom plate and the middle partition plate forms a second cavity. The separator wall is configured to separate the first cavity into a liquid inlet channel and a liquid outlet channel. The cover plate includes two openings. One opening communicates with the liquid inlet channel, and the other opening communicates with the liquid outlet channel. The middle partition plate includes at least one group of through holes.

Classes IPC  ?

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

Abrégé

A photovoltaic inverter includes an inverter circuit, a communication circuit, an arc detection circuit, and a transformer. The transformer includes one magnetic core, at least one primary-side coil, and at least two secondary-side coils. The primary-side coil and the secondary-side coils of the transformer are wound around the magnetic core. One end of a first primary-side coil of the transformer is configured to connect to a power supply, the other end of the first primary-side coil is configured to connect to an input end of the inverter circuit, a first secondary-side coil of the transformer is configured to connect to the communication circuit, and a second secondary-side coil of the transformer is configured to connect to the arc detection circuit, to implement both power line communication and arc detection on the basis that the transformer includes the magnetic core.

Classes IPC  ?

• H02S 40/32 - Composants électriques comprenant un onduleur CC/CA associé au module PV lui-même, p. ex. module CA
• 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
• H02S 50/10 - Tests de dispositifs PV, p. ex. de modules PV ou de cellules PV individuelles

Abrégé

A power conversion device and an energy storage device, relating to the technical field of heat dissipation of energy storage devices. The power conversion device comprises a housing, a heat exchanger, a heat sink, inductor boxes, and a circuit board; the housing is provided with a power cavity and a heat dissipation cavity; power devices and heating electronic devices are respectively mounted on two sides of the circuit board; the heating electronic devices, the circuit board, the power devices, and the heat sink are sequentially arranged; the heat sink is partially located in the heat dissipation cavity to dissipate heat of the power devices; the heat exchanger is partially located in the power cavity to cool the heating electronic devices; the inductor boxes and the heat sink are all located in the heat dissipation cavity. The present application improves the heat dissipation efficiency of the whole power conversion device, and can satisfy the heat dissipation requirement of components having higher power and higher power density and improve the working performance of the power conversion device.

Classes IPC  ?

• H02M 1/00 - Détails d'appareils pour transformation
• H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage

Abrégé

Embodiments of the present application provide a photovoltaic conversion system and an isolator switch. The photovoltaic conversion system comprises an isolator switch and DC-DC conversion circuits; the isolator switch is adapted to be separately connected to the DC-DC conversion circuits and multiple photovoltaic cells; each photovoltaic cell comprises a photovoltaic module, a photovoltaic string formed by connecting multiple photovoltaic modules in series, or a photovoltaic array formed by connecting multiple photovoltaic modules in series and parallel; the isolator switch comprises multiple switch poles; each switch pole comprises two contact assemblies that are electrically isolated from each other; each contact assembly is configured to connect a DC-DC conversion circuit and at least one photovoltaic cell among the multiple photovoltaic cells; each contact assembly comprises a stationary contact and a movable contact, and the stationary contact and the movable contact can come into contact with or be separated from each other to control the closing or opening of the contact assembly; all contact assemblies within the isolator switch are simultaneously closed or opened. The solution in the embodiments of the present application can meet requirements of a photovoltaic system without increasing the number of switch poles of the isolator switch.

Classes IPC  ?

• H02S 40/30 - Composants électriques
• H01H 19/00 - Interrupteurs actionnés par un organe moteur qui est rotatif autour de son axe longitudinal et qui est entraîné directement par un corps solide extérieur à l'interrupteur, p. ex. une main

Abrégé

An uninterruptible power system (UPS), and a power supply method and a power supply system thereof. In an economy mode, different power conversion modules in a plurality of power conversion modules are used to compensate for harmonic currents of different orders, which can reduce a computing power requirement for a single power conversion module, reduce system costs, and achieve effect of compensating for harmonic currents of a large quantity of orders, so as to reduce harmonic pollution of a power grid by the uninterruptible power system.

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
• H02J 3/24 - Dispositions pour empêcher ou réduire les oscillations de puissance dans les réseaux

Abrégé

A power converter, heat exchangers, heat sinks, and a photovoltaic power generation system, related to the field of heat dissipation. The power converter includes: a power semiconductor device, a magnetic element, a sealed cavity, and a heat dissipation cavity. The power semiconductor device and the magnetic element are disposed in the sealed cavity. The power semiconductor device dissipates heat through a first heat sink, and cooling fins of the first heat sink are located in the heat dissipation cavity. The magnetic element dissipates heat through a second heat sink, and cooling fins of the second heat sink are located in the heat dissipation cavity, Accordingly, reliability and heat dissipation effect of heat dissipation performed by the power converter are improved.

Classes IPC  ?

• H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage
• H01L 23/367 - Refroidissement facilité par la forme du dispositif
• H02M 1/32 - Moyens pour protéger les convertisseurs autrement que par mise hors circuit automatique
• H02S 40/32 - Composants électriques comprenant un onduleur CC/CA associé au module PV lui-même, p. ex. module CA
• H02S 40/42 - Moyens de refroidissement

Abrégé

The present application provides a power assembly in which flow splitting is performed via a direct flow channel and an electric vehicle. A housing of the power assembly comprises a motor containing cavity, a speed reducer containing cavity, a flow channel inlet, and a plurality of flow channel outlets. The motor containing cavity is used for containing a stator and a rotor of a motor. The speed reducer containing cavity is used for containing a gear and a bearing of a speed reducer. The flow channel inlet is used for transporting a cooling liquid to the plurality of flow channel outlets via a same transmission flow channel. Two flow channel outlets among the plurality of flow channel outlets are used for transporting a cooling liquid to the motor containing cavity and the speed reducer containing cavity, respectively. An outlet of an oil pump is used for transporting a cooling liquid to the flow channel inlet via a heat exchanger and a direct flow channel. A valve is used for adjusting the flow of the cooling liquid transported to the flow channel inlet by at least one of the heat exchanger and the direct flow channel. According to the present application, the working temperature of the cooling liquid can be adjusted to improve the working performance and service life of the power assembly.

Classes IPC  ?

• F16H 57/04 - Caractéristiques relatives à la lubrification ou au refroidissement

Abrégé

A semiconductor package comprises an integrated circuit comprising a first connection terminal and a second connection terminal; an encapsulant encapsulating at least part of the integrated circuit; a first metal layer and a second metal layer. The first metal layer is placed upon at least a portion of one of the side walls of the encapsulant. The first metal layer is electrically connecting the first connection terminal and is configured to form an electrically conductive and mechanically stable connection with a metal trace of a base plate when mounting the semiconductor package to the base plate. The second metal layer is placed upon at least a portion of one or both of the first main surface and the second main surface of the encapsulant.

Classes IPC  ?

• H01L 23/31 - Encapsulations, p. ex. couches d’encapsulation, revêtements caractérisées par leur disposition
• H01L 23/32 - Supports pour maintenir le dispositif complet pendant son fonctionnement, c.-à-d. éléments porteurs amovibles
• H01L 23/482 - 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 couches conductrices inséparables du corps semi-conducteur sur lequel elles ont été déposées
• H01L 23/58 - Dispositions électriques structurelles non prévues ailleurs pour dispositifs semi-conducteurs
• H01L 25/065 - 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 le groupe

Abrégé

An under-vehicle thermal management device, a charging pile, and an electric vehicle. The under-vehicle thermal management device is arranged at a charging station. The under-vehicle thermal management device comprises a first thermal management system, a liquid inlet head, and a liquid outlet head. The liquid outlet head is used for being connected to a liquid injection port of the electric vehicle, and the liquid inlet head is used for being connected to a liquid return port of the electric vehicle. The under-vehicle thermal management device can be used in the electric vehicle. The under-vehicle thermal management device can work in conjunction with a thermal management system of the electric vehicle to meet the thermal management requirements of a power battery of the electric vehicle under different operating conditions, thereby ensuring the charging efficiency of the power battery. The solution can avoid significant modifications to the thermal management system of the electric vehicle, thereby avoiding an increase in the weight and size of the vehicle.

Classes IPC  ?

• 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 53/302 - Refroidissement des équipements de charge

Abrégé

A charging apparatus (300), comprising a charging device (310). The charging device (310) comprises a plurality of groups of charging modules (311) and N charging guns (312), wherein N is an integer greater than or equal to 2. The charging guns (312) are configured to be connected to charging interfaces of an electric vehicle (12). Each group of charging modules (311) comprises a plurality of charging modules connected in parallel. Each group of charging modules (311) is connected to a plurality of charging guns (312). A charging device (11) is configured to control at least two charging guns (312) among the N charging guns (312) to charge the same electric vehicle (12), wherein the at least two charging guns (312) are connected to different groups of charging modules. The charging apparatus can increase the charging power to meet the requirements of users for fast charging, thereby improving the user experience.

Classes IPC  ?

• B60L 53/30 - Détails de construction des stations de charge
• B60L 53/67 - Commande de plusieurs stations de charge

Abrégé

Provided in the present application are a switching device and a power system. The switching device comprises a switch body and a detection drive module, the switch body comprising an ignition device, a piston and a busbar, and the piston being configured to cut off the busbar when driven by an impact force generated upon detonation of the ignition device. The detection drive module comprises an insulating housing and a tunnel magnetoresistance effect sensor, the busbar is arranged outside the insulating housing, and a magnetic sensor is accommodated inside the insulating housing, the magnetic sensor being configured to measure the magnetic field intensity generated when a current flows through the busbar. The ignition device is configured to detonate when the magnetic field intensity is greater than or equal to a threshold. The detection drive module is used to measure the magnetic field intensity generated when the current flows through the busbar; when the magnetic field intensity is greater than or equal to the threshold, the detection drive module triggers denotation of the ignition device, and the piston cuts off the busbar when being driven by the impact force generated upon the denotation of the ignition device, so as to disconnect a circuit where a short-circuit fault occurs, thus helping to improve the precision of the switching device in current breaking.

Classes IPC  ?

• H01H 39/00 - Dispositifs de commutation actionnés par une explosion produite à l'intérieur du dispositif et amorcée par un courant électrique

Abrégé

Provided in the embodiments of the present application are a power battery and an electric vehicle. The electric vehicle comprises a radiator, a first cooling loop, a second cooling loop and a power battery. The first cooling loop is connected to the radiator, and the second cooling loop is used for connecting to an out-of-vehicle cooling apparatus. The radiator comprises a filling port and a filling cap covering the filling port. During the period from receiving a coolant liquid output from the out-of-vehicle cooling apparatus to reconnecting to the out-of-vehicle cooling apparatus, the electric vehicle is used for: if the filling cap has not been opened, sending a message used for instructing the out-of-vehicle cooling apparatus to output the coolant liquid; or if the filling cap has been opened, not sending the message used for instructing the out-of-vehicle cooling apparatus to output the coolant liquid, or sending a message used for instructing the out-of-vehicle cooling apparatus not to output the coolant liquid. While allowing the second cooling loop of the electric vehicle to use the coolant liquid provided by the out-of-vehicle cooling apparatus to dissipate heat of the power battery, the embodiments of the present application can also prevent the contaminated coolant liquid in the radiator from spreading to the out-of-vehicle cooling apparatus.

Classes IPC  ?

• B60K 11/04 - Disposition ou montage des radiateurs, volets de radiateurs ou écrans de radiateurs
• 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
• H01M 10/613 - Refroidissement ou maintien du froid

Abrégé

A power module includes a thermally conductive base plate, a connection layer, a ceramic substrate, and a chip that are sequentially stacked. A molding body wraps the ceramic substrate and the chip. The ceramic substrate includes an insulation layer and a first metal layer. The first metal layer is disposed between the insulation layer and the connection layer. A reinforcing structure is formed on a side that is of the thermally conductive base plate and that faces the ceramic substrate. The reinforcing structure is located on a side portion of the connection layer in a direction perpendicular to an arrangement direction of the thermally conductive base plate and the connection layer. A wall surface of the reinforcing structure and a surface that is of the first metal layer and that faces the thermally conductive base plate enclose a containing space. The molding body fills the containing space.

Classes IPC  ?

• H01L 23/00 - Détails de dispositifs à semi-conducteurs ou d'autres dispositifs à l'état solide
• H01L 23/13 - Supports, p. ex. substrats isolants non amovibles caractérisés par leur forme
• 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 23/495 - Cadres conducteurs

Abrégé

Embodiments of the present application provide an energy storage system for power grid impact mitigation and a control method for power grid impact mitigation. The energy storage system comprises battery clusters, direct-current converters, power conversion systems, and controllers. One end of each direct-current converter is configured to be connected to the corresponding battery cluster; the other end of the direct-current converter is connected to a direct-current end of the corresponding power conversion system by means of a first direct-current bus; an alternating-current end of the power conversion system is configured to be connected to a power grid; and the power conversion system is configured to convert a direct current from the corresponding direct-current converter into an alternating current and output the alternating current to the power grid. When a voltage value of the direct current output by the battery cluster is less than the maximum value of a power grid voltage, the corresponding controller controls the corresponding switch transistor in the direct-current converter to operate, so that the direct-current converter increases the voltage value of the direct current output by the battery cluster and outputs the direct current to the power conversion system, and the voltage value of the direct current output by the direct-current converter is greater than or equal to the maximum value of the power grid voltage. The present application can avoid large current impact on a battery cluster side caused by abrupt increase in a power grid voltage.

Classes IPC  ?

• 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
• H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries

Abrégé

A brake system with control redundancy includes a central controller and four wheel end brake apparatuses. The central controller receives one channel of brake pedal travel signal and one channel of brake pedal force signal. A wheel end controller is configured to receive the other channel of brake pedal travel signal and the other channel of brake pedal force signal. One of the sensors fails, and the other sensor can still detect a motion state of a brake pedal, to improve operational reliability of the brake system with control redundancy. In addition, even when the central controller fails, the four wheel end brake apparatuses can be controlled, based on the other channel of brake pedal travel signal and the other channel of brake pedal force signal, to output brake forces.

Classes IPC  ?

• B60T 8/172 - Détermination des paramètres de commande utilisés pour la régulation, p. ex. par des calculs impliquant des paramètres mesurés ou détectés
• B60T 8/171 - Détection des paramètres utilisés pour la régulationMesure des valeurs utilisées pour la régulation

Abrégé

A power converter that includes a housing and a power conversion circuit. A plurality of accommodation cavities separated from each other are disposed in the housing, and the plurality of accommodation cavities separated from each other include a first accommodation cavity, a second accommodation cavity, and a third accommodation cavity. The power conversion circuit includes a first electromagnetic compatibility module, a bus capacitor, and a second electromagnetic compatibility module. The first accommodation cavity is configured to accommodate the first electromagnetic compatibility module, the second accommodation cavity is configured to accommodate the bus capacitor, and the third accommodation cavity is configured to accommodate the second electromagnetic compatibility module. The first accommodation cavity and the third accommodation cavity are located on two sides of the second accommodation cavity. Accordingly, EMC of the power converter can be improved.

Classes IPC  ?

• H05K 9/00 - Blindage d'appareils ou de composants contre les champs électriques ou magnétiques
• 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
• H02M 1/44 - Circuits ou dispositions pour corriger les interférences électromagnétiques dans les convertisseurs ou les onduleurs
• 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 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage

Abrégé

A semiconductor device including: a plurality of unit cells arranged side-by-side across a top surface of the semiconductor device, and where the plurality of unit cells are of a first type or a second type, each unit cell of the first type includes a first electrode, a second electrode, and a third electrode formed at the top surface of the semiconductor device. The second electrode is arranged to enclose the first electrode. Each of the first and second electrodes are arranged to enclose the third electrode. The unit cells of the first type form high electron mobility transistor (HEMT) cells, and the unit cells of the second type form Schottky Barrier Diode (SBD) cells.

Classes IPC  ?

• H10D 84/80 - Dispositifs intégrés formés dans ou sur des substrats semi-conducteurs qui comprennent uniquement des couches semi-conductrices, p. ex. sur des plaquettes de Si ou sur des plaquettes de GaAs-sur-Si caractérisés par l'intégration d'au moins un composant couvert par les groupes ou , p. ex. l'intégration de transistors IGFET
• H10D 62/85 - Corps semi-conducteurs, ou régions de ceux-ci, de dispositifs ayant des barrières de potentiel caractérisés par les matériaux étant des matériaux du groupe III-V, p. ex. GaAs
• H10D 64/00 - Électrodes de dispositifs ayant des barrières de potentiel
• H10D 84/01 - Fabrication ou traitement

Abrégé

The present application provides a battery module, a battery pack and an energy storage device. The battery module comprises a plurality of battery cells, end plates arranged at two ends of the plurality of battery cells in the arrangement direction, and straps used for bundling the plurality of battery cells and the end plates; each end plate comprises a base plate and a plurality of flange structures; the base plate is stacked with the plurality of battery cells in the arrangement direction of the plurality of battery cells, the plurality of flange structures are arranged around the edge of the base plate and cover the periphery of the base plate in a ring-shaped structure, and the plurality of flange structures are bent from the edge of the base plate and protrude from the surface of the base plate facing away from the battery cells. The present application can solve the problems of high raw material cost and complex process of existing die-cast aluminum end plates, and solve the problems of low structural strength and poor expansion constraint effect of existing sheet metal end plates. By adding foam, plastic parts and ceramic composite tapes and reasonably designing the positions and sizes, the problems of uneven stress, short creepage distance and poor insulation performance can be solved, thereby improving the service life and safety of the battery.

Classes IPC  ?

• H01M 50/244 - Boîtiers secondairesBâtisDispositifs de suspensionDispositifs de manutentionSupports caractérisés par leur procédé de montage
• H01M 50/242 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports caractérisés par les propriétés physiques des boîtiers ou des bâtis, p. ex. dimensions adaptés pour protéger les batteries contre les vibrations, les collisions ou le gonflement

Abrégé

A vehicle-mounted power supply apparatus and a vehicle are disclosed. The vehicle-mounted power supply apparatus includes a power conversion circuit, and an upper-layer PCB board, a lower-layer PCB board, and a heat dissipator that are sequentially stacked and fastened to a bottom housing. The upper-layer PCB board and the lower-layer PCB board are configured to carry a plurality of power switching transistors of the power conversion circuit. The bottom housing is configured to support the upper-layer PCB board, the lower-layer PCB board, the heat dissipator, and a plurality of transformers.

Classes IPC  ?

• B60L 53/22 - Détails de structure ou aménagements des convertisseurs de charge spécialement adaptés pour recharger des véhicules électriques
• H05K 5/00 - Enveloppes, coffrets ou tiroirs pour appareils électriques
• H05K 5/03 - Couvercles ou capots
• H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage

Abrégé

Provided in the present application is an electro-mechanical braking device with a side-mounted circuit board. The device comprises a braking electric motor, a braking electric-motor housing, a speed reducer and a circuit board, wherein the speed reducer comprises an input shaft and an output shaft arranged in parallel, the input shaft being in transmission connection with an electric-motor shaft of the braking electric motor, the output shaft being configured to drive a brake, and the brake being configured to brake a brake disc; the circuit board is configured to fix a control circuit of the braking electric motor, and the control circuit of the braking electric motor is configured to output an alternating current to the braking electric motor to drive the braking electric motor; the braking electric-motor housing is configured to accommodate a stator and a rotor of the braking electric motor; and in the direction of thickness of the circuit board, the distance between the braking electric-motor housing and the circuit board is less than the distance between the input shaft and the circuit board, and the distance between the input shaft and the circuit board is less than the distance between the output shaft and the circuit board. Such a configuration can reduce the dimension of the electro-mechanical braking device in the axial direction of the brake disc, so that the electro-mechanical braking device better adapts to the space of a vehicle chassis, thereby improving the operation stability of the electro-mechanical braking device.

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

Abrégé

Provided in the present application is an inverter. The inverter comprises a case, a plurality of power devices, a blocking assembly and a cooling assembly, the blocking assembly and the cooling assembly dividing the cavity of the case into a first cooling cavity and a second cooling cavity. The blocking assembly surrounds the plurality of power devices so as to form the first cooling cavity, and the second cooling cavity is formed between the blocking assembly and the side walls of the case. The blocking assembly comprises a first communication opening and a second communication opening, the first communication opening communicating the first cooling cavity with the second cooling cavity, and the second communication opening communicating the first cooling cavity with the second cooling cavity. The case comprises a first side wall; the cooling assembly comprises a first fan, an air outlet of the first fan being located in the second cooling cavity, and the air outlet of the first fan facing the first side wall; an air inlet of the first fan is communicated with the first cooling cavity through the first communication opening. The inverter of the present application uses the described design, such that the cooling condition of the power devices can be effectively improved, thereby improving the cooling performance of the whole inverter.

Classes IPC  ?

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

Abrégé

An energy storage system comprises a battery pack, wherein the battery pack comprises batteries, and a battery cover plate (100) for the batteries is connected to and fitted with a battery casing (200) to form a closed cavity to accommodate battery cells (300). The battery cover plate (100) comprises a cover plate (11) and an insulating base plate (12) arranged in a stacked manner, a valve hole (13) running through the cover plate (11) and the insulating base plate (12), and an explosion-proof valve (14) closing the valve hole (13), wherein the explosion-proof valve (14) comprises a valve plate (141) and an insulating fireproof layer (142) distributed in sequence in the axial direction of the valve hole (13), the insulating fireproof layer (142) being closer to the battery cells (300) than the valve plate (141), the insulating fireproof layer (142) being provided with a tear line (1420), the tear line (1420) comprising a plurality of holes arranged at intervals, and the insulating fireproof layer (142) being capable of rupturing on the basis of the tear line (1420) and forming a fireproof flap (1421) that is unfolded outwards in a radial direction. When being unfolded, the fireproof flap (1421) can cover metal at the valve hole (13), and the metal at the valve hole (13) comprises at least one of an inner wall of the valve hole (13), the plate surface of the cover plate (11) that is located on the outer side of the valve hole (13), and the broken valve plate (141), thereby reducing the risk of a fire caused by friction between an active material and the metal at the valve hole (13), and avoiding aggravating the thermal runaway of the battery cells (300).

Classes IPC  ?

• H01M 50/342 - Aménagements non refermables
• H01M 50/383 - Moyens pare-flammes ou moyens de prévention de l’allumage
• H01M 50/15 - Couvercles caractérisés par leur forme pour des cellules prismatiques ou rectangulaires

Abrégé

A powertrain (100) containing parallel flow channels, and an electric vehicle (1000). The powertrain (100) comprises a generator (102), an electric motor (103), an oil pump (20), an electric motor flow channel (11), and a generator flow channel (12). The electric motor flow channel (11) comprises electric motor flow channel inlets (111), electric motor flow channel outlets (112), and a valve (30). The electric motor flow channel outlets (112) are used to output a coolant to dissipate heat from a rotor or a stator of the electric motor (103). The valve (30) is used to communicate one or more of the electric motor flow channel inlets (111) with one or more of the electric motor flow channel outlets (112). The generator flow channel (12) comprises generator flow channel inlets (121) and generator flow channel outlets (122). The generator flow channel outlets (122) are used to output a coolant to dissipate heat from a rotor or a stator of the generator (102). An outlet of the oil pump (20) is used to communicate the electric motor flow channel inlets (111) with the generator flow channel inlets (121). The valve (30) is used to simultaneously adjust the flow rate of one or more of the electric motor flow channel inlets (112) and the flow rate of one or more of the generator flow channel outlets (122).

Classes IPC  ?

• B60K 1/00 - Agencement ou montage des ensembles de propulsion électriques
• F16H 57/04 - Caractéristiques relatives à la lubrification ou au refroidissement
• H02K 9/19 - Dispositions de refroidissement ou de ventilation pour machines avec enveloppe fermée et circuit fermé de refroidissement utilisant un agent de refroidissement liquide, p. ex. de l'huile
• H02K 7/10 - Association structurelle avec des embrayages, des freins, des engrenages, des poulies ou des démarreurs mécaniques
• H02K 7/116 - Association structurelle avec des embrayages, des freins, des engrenages, des poulies ou des démarreurs mécaniques avec des engrenages
• B60K 11/02 - Dispositions des ensembles de propulsion relatives au refroidissement avec liquide de refroidissement

Abrégé

The present application provides an all-in-one vehicle-mounted power supply apparatus, a power assembly and an electric vehicle. The all-in-one power supply apparatus comprises: an inverter circuit, midpoints of three-phase bridge arms in the inverter circuit being connected to three-phase windings of a driving motor, respectively, and switching tubes in the three-phase bridge arms being insulated-gate bipolar transistors; and a voltage conversion circuit, the voltage conversion circuit comprising a transformer and a secondary-side circuit, and a switching transistor in the secondary-side circuit being a silicon carbide-metal oxide semiconductor field effect transistor. The secondary-side circuit is used for, while the all-in-one vehicle-mounted power supply device is used for receiving power supplied by an external power supply and charging a power battery, receiving power supplied by a secondary winding of the transformer and supplying power to the power battery. While the all-in-one vehicle-mounted power supply device is used for receiving power supplied by the power battery and supplying power to the driving motor, power supplied the power battery is received, and the power battery and the inverter circuit jointly supply power to the driving motor, so that working efficiency can be improved while controlling costs and saving space.

Classes IPC  ?

• B60L 53/22 - Détails de structure ou aménagements des convertisseurs de charge spécialement adaptés pour recharger des véhicules électriques
• H02J 7/10 - Régulation du courant ou de la tension de charge utilisant des tubes à décharge ou des dispositifs à semi-conducteurs utilisant uniquement des dispositifs à semi-conducteurs
• H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries
• 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 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 1/42 - Circuits ou dispositions pour corriger ou ajuster le facteur de puissance dans les convertisseurs ou les onduleurs
• H02P 27/06 - Dispositions ou procédés pour la commande de moteurs à courant alternatif caractérisés par le type de tension d'alimentation utilisant une tension d’alimentation à fréquence variable, p. ex. tension d’alimentation d’onduleurs ou de convertisseurs utilisant des convertisseurs de courant continu en courant alternatif ou des onduleurs
• B60L 1/00 - Fourniture de l'énergie électrique à l'équipement auxiliaire des véhicules à traction électrique

Abrégé

The embodiments of the present application relate to the technical field of power electronics. Provided is a power conversion apparatus. The power conversion apparatus comprises a housing, a circuit board, a radiator and a first heat exchanger, wherein a power cavity is formed in the housing, a heat dissipation cavity is formed outside the housing, the housing comprises a partition plate located between the power cavity and the heat dissipation cavity, an opening is provided in the partition plate, the circuit board is arranged in the power cavity, and the side of the circuit board that faces the opening is provided with a first power device; the radiator is arranged in the heat dissipation cavity and comprises a first base plate and a first heat dissipation portion, wherein the first base plate is arranged at the opening and is in contact with the first power device, a first gas-liquid channel is provided in the first base plate, a second gas-liquid channel in communication with the first gas-liquid channel is provided in the first heat dissipation portion, and a cooling working medium for gas-liquid conversion is provided in the first gas-liquid channel; and the first heat exchanger is located in the power cavity or the heat dissipation cavity. By means of the above technical solution, targeted heat dissipation can be performed on a device suffering from severe heat generation in the power conversion apparatus, such that the power conversion apparatus operates stably.

Classes IPC  ?

• H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage
• 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 battery pack. The battery pack is configured to accommodate a battery module, and the battery module includes a plurality of cells. In the embodiments, thermistors are disposed on cells at a front end, the middle, and a rear end in the plurality of cells respectively, to learn of a temperature range of the entire battery pack and a temperature change rate of the battery pack, so that detection accuracy of a temperature of the battery pack can be ensured while quantities of collection components and collection ports in the battery pack are reduced.

Classes IPC  ?

• 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
• H01M 10/42 - Procédés ou dispositions pour assurer le fonctionnement ou l'entretien des éléments secondaires ou des demi-éléments secondaires
• H01M 10/48 - Accumulateurs combinés à des dispositions pour mesurer, tester ou indiquer l'état des éléments, p. ex. le niveau ou la densité de l'électrolyte
• H01M 10/613 - Refroidissement ou maintien du froid
• H01M 10/647 - Éléments prismatiques ou plans, p. ex. éléments de type poche
• H01M 10/653 - Moyens de commande de la température associés de façon structurelle avec les éléments caractérisés par des matériaux électriquement isolants ou thermiquement conducteurs
• H01M 10/6554 - Barres ou plaques
• H01M 10/656 - Moyens de commande de la température associés de façon structurelle avec les éléments caractérisés par le type de fluide pour l'échange de chaleur
• H01M 50/209 - Bâtis, modules ou blocs de multiples batteries ou de multiples cellules caractérisés par leur forme adaptés aux cellules prismatiques ou rectangulaires
• 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 50/271 - Couvercles des boîtiers secondaires, des bâtis ou des blocs
• H01M 50/296 - MonturesBoîtiers secondaires ou cadresBâtis, modules ou blocsDispositifs de suspensionAmortisseursDispositifs de transport ou de manutentionSupports caractérisés par les bornes des blocs de batterie
• H01M 50/507 - Interconnecteurs pour connecter les bornes des batteries adjacentesInterconnecteurs pour connecter les cellules en dehors d'un boîtier de batterie comprenant un arrangement de plusieurs barres omnibus réunies dans une structure de conteneur, p. ex. modules de barres omnibus
• H01M 50/522 - Matériau inorganique
• H01M 50/583 - Dispositifs ou dispositions pour l’interruption du courant en réponse au courant, p. ex. fusibles

Abrégé

An energy storage system. A control unit is configured to: when a voltage of an energy storage unit is greater than a voltage peak of an end that is of a power conversion system and that is configured to connect to a grid connection point, control a switching transistor to be turned-on, so that a DC/DC conversion circuit stops working. The power conversion system is configured to charge or discharge the energy storage unit by using the switching transistor. The control unit is configured to: when the voltage of the energy storage unit is less than the voltage peak of the end that is of the power conversion system and that is configured to connect to the grid connection point, control the switching transistor to be turned off, to charge or discharge the energy storage unit by using the DC/DC conversion circuit and the power conversion system.

Classes IPC  ?

• H02J 3/32 - Dispositions pour l'équilibrage de charge dans un réseau par emmagasinage d'énergie utilisant des batteries avec moyens de conversion
• H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif
• H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries

Abrégé

A semiconductor device includes a semiconductor substrate, an Aluminum Gallium-Nitride (AlGaN) back-barrier layer formed above the semiconductor substrate, and a GaN channel layer formed on the AlGaN back-barrier layer. A two-dimensional hole gas (2DHG) is formed at an interface between the GaN channel layer and the AlGaN back-barrier layer, and a p-type doped region is formed above the semiconductor substrate and next to the GaN channel layer and the AlGaN back-barrier layer. The p-type doped region is configured to provide an ohmic contact for the 2DHG. The p-type doped region comprises Magnesium as a p-type dopant. The p-type doped region comprises one or more hollow chambers extending from the top face of the p-type doped region. The hollow chambers are configured to form an escape path for Hydrogen atoms which are formed during a dopant activation of the p-type doped region during fabrication of the semiconductor device.

Classes IPC  ?

• H10D 30/47 - Transistors FET ayant des canaux à gaz de porteurs de charge de dimension nulle [0D], à une dimension [1D] ou à deux dimensions [2D] ayant des canaux à gaz de porteurs de charge à deux dimensions, p. ex. transistors FET à nanoruban ou transistors à haute mobilité électronique [HEMT]
• H10D 30/01 - Fabrication ou traitement
• H10D 62/10 - Formes, dimensions relatives ou dispositions des régions des corps semi-conducteursFormes des corps semi-conducteurs
• H10D 62/85 - Corps semi-conducteurs, ou régions de ceux-ci, de dispositifs ayant des barrières de potentiel caractérisés par les matériaux étant des matériaux du groupe III-V, p. ex. GaAs

Abrégé

The disclosure relates to a circuit breaker (200), comprising: a pair of rotationally movable contacts (130a, 130b) which are configured to contact a respective pair of bus terminals (110a, 110b) in a closed position of the circuit breaker (200); a rotor (220) being configured to rotate the movable contacts, the rotor comprising a set of magnets (221, 222) which are rotationally symmetrically arranged around a rotor axis of the rotor, wherein two magnets arranged next to each other are oppositely magnetized; and at least one stator (210) to which the rotor (220) is rotationally attached; the at least one stator (210) comprising a set of coils (211) which are rotationally symmetrically arranged around a stator axis of the at least one stator (210) that coincides with the rotor axis of the rotor (220). In the closed position of the circuit breaker (200) the magnets are arranged angularly offset with respect to the coils (211) in the set of coils (211) in order to apply a torque force (145) on the rotor upon activation of the circuit breaker by a current flowing through the coils (211) in the set of coils (211) thereby moving the pair of contacts (130a, 130b) in an open position of the circuit breaker.

Classes IPC  ?

• H01H 3/28 - Dispositions comportant une énergie à l'intérieur de l'interrupteur pour actionner le mécanisme d'entraînement utilisant un électro-aimant
• H02K 26/00 - Machines adaptées pour le fonctionnement en moteur-couple, c.-à-d. pour exercer un couple quand elles sont arrêtées
• H01H 1/20 - Contacts pontants

Abrégé

The disclosure relates to a circuit breaker assembly, comprising: a first contact terminal and a second contact terminal; a busbar configured to enable a current flow between the first contact terminal and the second contact terminal; and an auxiliary current path electrically connected in parallel to the busbar between the first contact terminal and the second contact terminal, the auxiliary current path comprising a fuse, wherein a nominal current value of the fuse is smaller than an operating current value of the busbar; wherein the busbar comprises at least one pyrotechnic section arranged between the first contact terminal and the second contact terminal in parallel to the auxiliary current path, wherein an activation of the at least one pyrotechnic section responsive to a fault current flow between the first contact terminal and the second contact terminal interrupts the busbar, thereby commutating the fault current to the auxiliary current path for an extinction of the fault current by the fuse.

Classes IPC  ?

• H01H 39/00 - Dispositifs de commutation actionnés par une explosion produite à l'intérieur du dispositif et amorcée par un courant électrique
• H01H 85/02 - Dispositifs de protection dans lesquels le courant circule à travers un organe en matière fusible et est interrompu par déplacement de la matière fusible lorsqu'il devient excessif Détails

Abrégé

An inverter. In a primary bridge arm of the inverter, a first end of a first switching tube and a first end of a third switching tube are connected to a positive output end of a direct-current power source, a second end of the first switching tube is connected to a negative output end of the direct-current power source by means of a second switching tube, a second end of the third switching tube is connected to the negative output end of the direct-current power source, and a connection end between the first switching tube and the second switching tube and a connection end between the third switching tube and the fourth switching tube are respectively connected to two ends of a primary winding of a transformer unit. A controller controls the turn-on interval between the turn-on of the first switching tube and the turn-on of the third switching tube to be a first phase angle, and the phase difference between a first alternating-current voltage across the primary winding and a second alternating-current voltage across a secondary winding to be a second phase angle. The controller adjusts the first phase angle, the second phase angle and a switching frequency according to different control modes to control an output power until an output current is a set current value, different polarity changes of the first and second alternating-current voltages correspond to different control modes, and in different control modes, the relationships between the output power and the three control variables are different.

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

Abrégé

Embodiments of the present application provide a disc motor, a powertrain, and an electric vehicle. A stator housing of the disc motor is used for fixing a stator core and integrating cooling flow channels of the stator core; the cooling flow channels include an end surface flow channel, a circumferential surface flow channel, and at least one coupling flow channel; an axial groove bottom of the stator housing is used for integrating the end surface flow channel; and a circumferential groove wall of the stator housing is used for integrating the circumferential surface flow channel. One end surface heat-dissipation segment of the end surface flow channel and a circumferential surface heat-dissipation segment of the circumferential surface flow channel are respectively used for guiding a coolant to flow through the axial groove bottom and the circumferential groove wall in at least one of a counterclockwise direction and a clockwise direction. The circumferential surface heat-dissipation segment and the end surface heat-dissipation segment are communicated with each other by means of one coupling flow channel. All the cooling flow channels are integrated in the stator housing, achieving a compact structure, such that the entire stator core is cooled, improving the cooling efficiency, thereby mitigating the overheating problem in the disc 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
• B60K 6/26 - Agencement ou montage de plusieurs moteurs primaires différents pour une propulsion réciproque ou commune, p. ex. systèmes de propulsion hybrides comportant des moteurs électriques et des moteurs à combustion interne les moteurs primaires étant constitués de moteurs électriques et de moteurs à combustion interne, p. ex. des VEH caractérisés par des appareils, des organes ou des moyens spécialement adaptés aux VEH caractérisés par les moteurs ou les générateurs
• H02K 9/19 - Dispositions de refroidissement ou de ventilation pour machines avec enveloppe fermée et circuit fermé de refroidissement utilisant un agent de refroidissement liquide, p. ex. de l'huile
• H02K 5/20 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction avec des canaux ou des conduits pour la circulation d'un agent de refroidissement