Abstract: A bus assembly, an electrical motor, an electric power steering system, and a vehicle are provided. The bus assembly has multiple bus bars axially spaced along an electrical motor. Each bus bar has multiple bus segments arranged along the circumferential direction of the electrical motor. The bus segments of one of the bus bars have the same structure.

Abstract: An iron core assembly, a motor, a compressor and a vehicle are provided. The iron core assembly has an iron core body and multiple insulating skeletons. The iron core body has multiple iron core blocks. A mounting groove is provided at an edge of at least one end face of each iron core block. Each iron core block is arranged between two insulating skeletons. Out of the two insulating skeletons provided at two ends of an iron core block, an end face of at least one insulating skeleton, facing the iron core block, is provided with insulating protrusions. The insulating protrusions can wrap two sides of the iron core block. The insulating protrusions match the mounting groove.

Abstract: An insulating framework, a stator, a motor, a compressor and a vehicle are provided. The insulating framework has a first support, a second support and a third support. The second support is disposed opposite to the first support and is provided with a wire slot. The wire slot passes through the wall surface of the second support. A portion of the bottom wall of the wire slot inclines towards the bottom of the second support to form an inclined portion. The inclined portion is located on the side of the wire slot facing the first support. The third support is located between the first support and the second support and connected to the first support and the second support.

Abstract: A stator core, an electric motor, a compressor and a vehicle are provided. The stator core has multiple block cores. The block cores are sequentially connected end to end around an axis of the stator core. Each block core has multiple stacked laminations. Each block core has a stator yoke and a stator tooth, which are connected to each other. The stator tooth is located between the stator yoke and the axis of the stator core. The stator yokes and the stator teeth of any two adjacent block cores define a stator slot. A wall surface, facing the axis of the stator core, of the stator yoke is a spliced surface. In a circumferential direction of the stator core, at least part of a joint of any two adjacent spliced surfaces is in smooth transition.

Abstract: A stator, an electric motor, a compressor and a vehicle are provided. The stator has a stator core, windings and first insulators. The stator core has multiple tooth portions distributed along a circumferential direction of the stator core. A stator slot is provided between two adjacent tooth portions. The windings are wound around the tooth portions and extends into the stator slots. At least parts of the first insulators are located at gaps between the windings on two adjacent tooth portions. Each first insulator has a first insulation portion and a second insulation portion connected to each other. In the same stator slot, the first insulation portion is in contact with one group of the windings, and the second insulation portion is in contact with another group of the windings. In a cross-section perpendicular to an axial direction of the stator core, the length of the first insulation portion is greater than the length of the second insulation portion.

Abstract: A cover plate assembly, a stator, an electric motor, a compressor and a vehicle are provided. The cover plate assembly is used for the electric motor having a lead. The cover plate assembly has a first housing and a second housing. The first housing has a first passage portion. The second housing is detachably connected to the first housing. A sealing cavity and a second passage portion are jointly enclosed between the first housing and the second housing. The first passage portion and the second passage portion are both in communication with the sealing cavity. The lead of the electric motor extends into the sealing cavity through the second passage portion.

Abstract: An electric motor and a vehicle are provided. The electric motor includes a metal member, a rotor core, a shaft, a conductive bearing, and an elastic conductive member. The metal member is grounded. The rotor core is disposed on one side of the metal member, and includes a shaft hole. The shaft is connected to the rotor core, and penetrates through the shaft hole. The conductive bearing is disposed on the shaft in a sleeving manner. At least a portion of the elastic conductive member is disposed between the conductive bearing and the metal member. The elastic conductive member generates compression force through elastic deformation thereof, to be in tight contact with the conductive bearing.

Abstract: A rotor punching sheet, a rotor iron core, a rotor, an electric motor and a vehicle are provided. The rotor punching sheet has a punching sheet body, a shaft hole and a plurality of slot groups. The shaft hole is provided in the punching sheet body. The plurality of slot groups are provided in the punching sheet body. Each slot group has at least one magnetic slot. Each magnetic slot has two magnet slots. Each magnet slot has a first slot end and a second slot end, which are on the axial end face, the first slot end being disposed closer to the shaft hole than the second slot end. A peripheral edge of the punching sheet body has a peripheral section on the axial end face. The peripheral section has a plurality of arc-shaped sections connected to each other and corresponding to the plurality of slot groups. Each arc-shaped section has a first circular arc section concentric with the shaft hole, and a second circular arc section eccentric from the shaft hole.

Abstract: A drive motor, a drive system and a vehicle are provided. The drive motor has a motor housing and a stator core provided in the motor housing. The motor housing has a fluid inlet and a fluid outlet. A cut edge is disposed on an outer peripheral wall of the stator core. The cut edge extends in an axial direction of the stator core. A cooling fluid flow path is formed by a space between the cut edge and an inner peripheral wall of the motor housing. The fluid inlet and the fluid outlet are in communication with the cooling fluid flow path.

Abstract: A motor and a vehicle are provided. The motor has a housing, a stator, a first end cove, a second end cover, a first oil injection ring, a rotor, a first end plate, and a second end plate. The rotor includes a rotor core, a rotor oil path formed in the rotor core, a rotor magnet steel, a rotation shaft, and a rotation shaft oil path formed in the rotation shaft. A first oil groove is defined on an inner side surface of the first end plate opposite to the rotor core, and is in communication with the rotation shaft oil path and the rotor oil path, respectively. A first end plate oil outlet is defined in an outer side surface of the first end plate and communicates the first oil groove with an inner cavity of the housing.

Abstract: A rotary transformer is provided. The transformer has a stator and a rotor. The stator has a stator core and the rotor has a rotor core sleeved in the stator core. An air gap is defined between an inner side wall of the stator core and an outer side wall of the rotor core. During rotation of the rotor, a length S of the air gap along a circumferential direction of the transformer and a mechanical rotation angle ? of the rotor satisfy a sinusoidal function relationship containing third-harmonic components, and the length changes periodically according to the functional relationship to define a shape of the rotor core. As a result, the output signal amplitude and measurement accuracy of the position of the rotary transformer can be improved under the same maximum and minimum air gaps.

Abstract: Provided are a scroll compressor, a refrigeration device, and a vehicle. In the scroll compressor, an oil discharging hole of an oil separation structure and an oil storage tank are connected to each other by an oil outlet channel disposed in a housing, and an oil outlet of the oil outlet channel is located above an oil inlet. The oil outlet channel can guide a refrigeration oil discharged from the oil discharging hole to flow into the oil storage tank. After passing through the oil outlet channel, a flow rate and a pressure of the refrigeration oil decrease, and thus an impact of the refrigeration oil on the remaining refrigeration oil in the oil storage tank is reduced when discharged from the oil outlet. Therefore, the refrigeration oil within the oil storage tank remains stable and can always immerse an oil return hole of the oil storage tank.

Abstract: An iron core assembly, a motor, a compressor and a vehicle are provided. The iron core assembly has an iron core body and multiple insulating skeletons. The iron core body has multiple iron core blocks. A mounting groove is provided at an edge of at least one end face of each iron core block. Each iron core block is arranged between two insulating skeletons. Out of the two insulating skeletons provided at two ends of an iron core block, an end face of at least one insulating skeleton, facing the iron core block, is provided with insulating protrusions. The insulating protrusions can wrap two sides of the iron core block. The insulating protrusions match the mounting groove.

Abstract: A method of providing a housing assembly and an electronic water pump, a housing assembly and an electronic water pump are provided. The housing assembly of the electronic water pump has a stator assembly, a rotary shaft, a shaft base, and an injection molded housing. The stator assembly is formed through one-piece injection molding. The housing assembly is formed by over-molding. The rotary shaft and the shaft base of the pump are embedded in the injection molded housing. The stator assembly is enclosed by the injection molded housing to provide self-sealing between the stator assembly and the injection molded housing.

Abstract: A rotary transformer is provided. The transformer has a stator and a rotor. The stator has a stator core and the rotor has a rotor core sleeved in the stator core. An air gap is defined between an inner side wall of the stator core and an outer side wall of the rotor core. During rotation of the rotor, a length ? of the air gap along a circumferential direction of the transformer and a mechanical rotation angle ? of the rotor satisfy a sinusoidal function relationship containing third-harmonic components, and the length changes periodically according to the functional relationship to define a shape of the rotor core.