Abstract: The subject matter discloses a relay, including a housing, static contact bridges, a moving contact bridge, a pushing mechanism and a detection assembly.

Abstract: A battery includes a case and a battery core assembly disposed in the case, the battery core assembly includes a plurality of battery core groups and an receiving space holding the plurality of battery core groups, the battery core groups are connected in series, and the battery core group includes at least one battery core; a separator plate is disposed between at least two adjacent battery core groups, the separator plate divides the receiving space into a plurality of receiving cavities, each of the receiving cavities holds one or more battery core groups, and a cavity wall of the receiving cavity comprised by a connection of the separator plate and a separation membrane; and the battery further includes a liquid injection channel and the liquid injection channel in a sealed state, the liquid injection channel is disposed on at least one of the separation membranes and the separator plates.

Abstract: The present disclosure relates to an anode material having porous core-shell structure, the anode material includes a core formed of at least one carbonaceous material selected from a group consisting of graphite, hard carbon and soft carbon, and a carbon shell coated on a surface of the core. The carbon shell contains amorphous carbon, cobalt element and tin element, and has a porous structure having a porosity greater than 10%. The present disclosure further relates to a method of preparing the anode material having porous core-shell structure, and a battery of which a negative electrode contains the anode material having porous core-shell structure.

Abstract: A power-driven system includes: a differential; a power output shaft configured to link to a power input end of the differential; multiple input shafts; and a first motor generator. The differential includes a first planet carrier, a second planet carrier, a first planet gear, a second planet gear, a first ring gear, and a second ring gear. The first planet gear and the second planet gear are respectively disposed on the first planet carrier and the second planet carrier and respectively meshed with the first ring gear and the second ring gear. One input shaft of the multiple input shafts is configured to selectively link to the power output shaft, and another input shaft of the multiple input shafts is configured to link to the power output shaft. The first motor generator is configured to link to the one input shaft of the multiple input shafts.

Abstract: The present disclosure provides an electric vehicle, a vehicle-mounted charger and a method for controlling the same. The method includes: obtaining a first predetermined discharging-period Tm for controlling the H bridge in a first manner and a second predetermined discharging-period Tn for controlling the H bridge in a second manner when the vehicle-mounted charger starts to charge a power battery of the electric vehicle; and performing an alternate control on the H bridge in the first manner or the second manner according to the first predetermined discharging-period Tm and the second predetermined discharging-period Tn, so as to perform a temperature balanced control over the first switch transistor, the second switch transistor, the third switch transistor and the fourth switch transistor.

Abstract: The present subject matter provides a relay, including an insulating cover, two static contact bridges, a moving contact bridge, a drive shaft and a driving mechanism; a conductive layer is provided on the inner surface of the top of the insulating cover; the relay comprises an auxiliary conduction structure and an auxiliary detection structure; the auxiliary conduction structure includes a conductive member and an elastic member that elastically supports the conductive member below; the conductive member is arranged on the drive shaft, the drive shaft moves up to drive the moving contact bridge to be conducted with the static contact bridges, and the conductive member is conducted with the conductive layer; the drive shaft moves down to drive the moving contact bridge to be disconnected from the static contact bridges, and the conductive member is disconnected from the conductive layer; the auxiliary detection structure comprises a first auxiliary terminal and a second auxiliary terminal; the first auxiliary

Abstract: The present disclosure provides a metal-resin composite and a preparation method. The metal-resin composite includes a metal substrate; a porous resin layer formed on the metal substrate; a plastic layer formed on the porous resin layer; and a pore passage. The pore passage passes through the porous resin layer and extends inside the metal substrate, and the plastic layer fills in the pore passage to bond with the metal substrate.

Abstract: A tray, a tray assembly, a battery pack assembly and a vehicle are provided. The tray includes a bottom plate having a plurality of sub-bottom plates and a flow channel in at least one of the plurality of sub-bottom plates. The at least one of the plurality of sub-bottom plates is configured to support a battery assembly. The tray further includes a frame disposed around and configured to support the bottom plate. The tray provides a reduced volume requirement on the cavity for holding the battery assembly. The flow channels are arranged more concisely, and a water cooling mode and an air cooling mode are employed in the tray.

Abstract: The present application discloses a battery equalization system, a vehicle, a battery equalization method, and a storage medium. The battery equalization system includes: a collection circuit; an equalization circuit; a controller, connected to the collection circuit and the equalization circuit; and a power supply branch circuit, controlled by the controller to get connected to a power supply unit and the battery equalization system when a vehicle is in an OFF gear and a cell needs enabling of equalization, so that the power supply unit supplies power to the battery equalization system.

Abstract: A load controller includes a casing; a busbar module, the busbar module including a DC busbar and an AC busbar connected to a load; a capacitor connected to an external DC power supply, the capacitor being connected to the DC busbar; an IGBT power module, an input end of each IGBT being connected to the DC busbar, and an output end of each IGBT being connected to the AC busbar; a heat-dissipating module, the heat-dissipating module including multiple heat-dissipating fins, each IGBT in a same column of IGBTs being sandwiched between adjacent two heat-dissipating fins; a driving circuit board, the driving circuit board being electrically connected to each IGBT; and a control circuit board, the control circuit board being connected to the driving circuit board, where all of the busbar module, the IGBT power module, the heat-dissipating module, the driving circuit board and the control circuit board are disposed on the casing.

Abstract: A brake system (100) and a brake method for a four-wheel drive electric vehicle and a four-wheel drive electric vehicle, in the system, according to a brake mode of the electric vehicle, a state of charge of a battery pack (4) and a vehicle speed, a first brake control unit controls a motor (6) to brake a wheel (9) through a motor controller (2) and a second brake control unit controls a brake actuator (12) to brake the wheels (9). The first brake control unit further determines whether a brake torque of the brake actuator (12) on the wheels (9) fails. If yes, the first brake control unit controls the motor (6) to brake the corresponding wheel (9) through the motor controller (2).

Abstract: The present disclosure provides an automobile tray component, including a tray base plate and mounting beams arranged around the tray base plate, where the tray base plate includes an upper plate body, an intermediate plate body, and a lower plate body, a cooling cavity is arranged between the upper plate body and the intermediate plate body, and a buffer cavity is arranged between the intermediate plate body and the lower plate body.

Abstract: The present invention discloses a low-dielectric resin composition, a low-dielectric resin/metal composite material and a preparation method thereof, and an electronic device. The resin composition comprises, based on 100% by weight of the resin composition: 45-70 wt % of a base resin, 20-45 wt % of a chopped glass fiber, 1-3 wt % of a toughening resin, 0.2-0.5 wt % of an unmodified glycidyl methacrylate, and 0-10 wt % of an auxiliary. The base resin is selected from the PBT resin and/or the PPS resin. The chopped glass fiber has a dielectric constant of 4.0 to 4.4 at 1 MHz. With the same base resin component, the dielectric constant and dielectric loss of the low-dielectric resin material prepared with the low-dielectric resin composition are significantly reduced, which is advantageous for satisfying the requirements of use of plastics for antenna channels in metal shell of an electronic device, so as to improve the ability of the electronic device having antennas to receive and transmit signals.

Abstract: Provided is a ceramic substrate. The ceramic substrate includes a core layer, made of zirconia toughened alumina; and surface layers, symmetrically located on an upper and a lower surfaces of the core layer, made of Al2O3. The core layer has a chemical composition of 0 wt %<ZrO2?40 wt % and 60 wt %?Al2O3<100 wt %. A method for manufacturing the ceramic substrate and a power module including the ceramic substrate are also provided.

Abstract: A circuit breaker includes a main protection circuit connected in series with a protected circuit, an auxiliary protection circuit connected in series with the protected circuit, where the main protection circuit is connected in parallel with the auxiliary protection circuit, a mechanical disconnecting device, where the mechanical disconnecting device disconnects the main protection circuit when an over-current occurs in the protected circuit, and a fusing device, where the fusing device is fused after the main protection circuit is disconnected, to disconnect the protected circuit.

Abstract: A circuit includes: a power generation module a low-frequency motion energy harvesting module, configured to harvest a direct current output by the power generation module when the human body is in a low-frequency motion state; a high-frequency motion energy harvesting module, configured to harvest a direct current output by the power generation module when the human body is in a high-frequency motion state; an energyrespectively connected to the low frequency motion cncrgy harvesting modulo configured to store electrical energy; and a motion switching module, respectively connected to the power generation module, the low-frequency motion energy harvesting module and the high-frequency motion energy harvesting module, and configured to monitor a human body motion state, and control, according to the human body motion state, switching between operation of the low-frequency motion energy harvesting module and operation of the high-frequency motion energy harvesting module, to respectively charge the energy stor

Abstract: This disclosure discloses a heat pump air-conditioning system and an electric vehicle. The system includes a HVAC assembly, a compressor, and an outdoor heat exchanger. The HVAC assembly includes an indoor condenser, an indoor evaporator, and a damper mechanism. The damper mechanism selectively opens ventilation channels of the indoor condenser and/or the indoor evaporator. An outlet of the compressor communicates to an inlet of the indoor condenser. An outlet of the indoor condenser communicates to an inlet of the outdoor heat exchanger selectively through a first throttle branch or a first through-flow branch. An outlet of the outdoor heat exchanger communicates to an inlet of the indoor evaporator selectively through a second throttle branch or a second through-flow branch. Both an outlet of the indoor evaporator, the outlet of the indoor condenser, and the outlet of the outdoor heat exchanger communicate to an inlet of the compressor.

Abstract: The present disclosure provides an electric vehicle, a vehicle-mounted charger and a method for controlling the same. The method includes: obtaining a first total discharging period for controlling the H bridge in a first manner and a second total charging period for controlling the H bridge in a second manner when a power battery discharges via the vehicle-mounted charger; determining a relation between the first total discharging period and the second total discharging period; selecting a manner for controlling the H bridge according to a relation between the first total discharging period and the second total discharging period to perform temperature balanced control over the first switch transistor, the second switch transistor, the third switch transistor and the fourth switch transistor.

Abstract: A power transmission system for a vehicle and a vehicle including the same are provided. The power transmission system includes an engine unit configured to generate power, a transmission unit adapted to selectively be coupled with the engine unit, and configured to transmit the power generated by the engine unit, a first motor generator coupled with the transmission unit, an output unit configured to transmit the power output by the transmission unit to at least one of front and rear wheels of the vehicle, and a second motor generator configured to drive the at least one of the front and rear wheels.