Abstract: A control device moves a split claw (11) holding a projecting portion (4d) of an eighth-layer coil segment (4) in a counterclockwise direction D1. At this time, the control device moves first to third extended blades (13a) to (13c) in an outward direction D3 so that the projecting portion (4d) of the eighth-layer coil segment (4) is bent in the outward direction D3. Then, the control device moves the first to third extended blades (13a) to (13c) in an inward direction D4. Through the above steps, the projecting portion (4d) of the eighth-layer coil segment (4) is bent in the counterclockwise direction D1 while being bent in the outward direction D3. As a result, a return force tending to return in the inward direction D4 is generated by an elastic deformation force.

Abstract: A motor includes a rotor including a shaft, a stator, an upper bearing supporting an upper side of the shaft, a lower bearing supporting a lower side of the shaft, a bearing holder supporting the upper bearing, a housing accommodating the rotor, the stator, and the bearing holder and including an opening on an upper side, and a controller electrically connected to coil lead wires, and having an electronic component mounted thereon. An outer circumferential surface of the bearing holder is fixed while contacting an inner circumferential surface of the housing, and the bearing holder includes a notch cutout extending inward from the outer circumferential surface, and at least one of a the coil lead wires extends upward through the notch.

Abstract: An electric machine with a housing, in which a stator having a plurality of winding heads is arranged. The housing has at least one cooling channel through which can flow a cooling medium. The cooling channel has at least one circular-shaped or circular-segment-shaped annular channel section, by way of which the cooling medium can be introduced to at least one winding head through at least one opening.

Abstract: A motor for a driving device includes: a rotor rotatable around a central axis, a stator facing the rotor, a busbar electrically connected to the stator, a busbar support to hold the busbar, a terminal bar including a first end electrically connected to the busbar, the terminal bar including a connection terminal at a second end and that is to be electrically connected to the driving device, and a seal to be attached to the driving device and located between the busbar and the connection terminal. The seal portion includes a through-hole into which the terminal bar is press-fitted.

Abstract: A consequent-pole-type rotor including a rotor core and a permanent magnet 1 disposed inside the rotor core, includes a first rotor core having a first region into which the permanent magnet is inserted and a second rotor core that has a second region communicating with the first region and is stacked on the first rotor core, wherein a second width is larger than a first width, where the first width is a width of the first region in a radial direction of the rotor core and the second width is a width of the second region in the radial direction of the rotor core.

Abstract: Heat releasing portions (15A, 15B) that release and transmit heat generated at at least a power conversion circuit unit (16) to a motor housing (11) are formed at an end surface wall (15) of the motor housing (11) which is an opposite side to an output shaft portion (14) of a rotation shaft (23) of the electric motor. Positioning protrusions (16P), as positioning portions whose positions are fixed by board fixing portions (26A, 26B) formed at the end surface wall (15) of the motor housing (11), are formed at a part of synthetic resin that covers the power conversion circuit unit (16). With this, positioning of the power conversion circuit unit (16) can be made using the existing board fixing portions (26A, 26B), and an outward appearance size can be reduced without newly adding a special positioning mechanism.

Abstract: A voice coil motor includes a base, a housing, a lower-resilient member, a lens frame, a coil, a magnet, an upper-resilient member, an upper cover plate, and a pin arranged on the base. The lower-resilient member, the lens frame, the coil, the magnet, the upper-resilient member, and the upper cover plate are arranged in sequence between the base and the housing. The lens frame and the coil are integrally formed. The coil surrounds an outer surface of the lens frame.

Abstract: An insulating resin coating method for coating with an insulating resin a weld of a stator having a plurality of the welds formed by welding ends of coil wires together, the method including the steps of: sandwiching and covering the weld of the coil wires by a pair of resin-molding molds; and injecting the resin into the resin-molding molds by a resin injector.

Abstract: A rotor that includes a rotor core assembly secured to a shaft. The rotor core assembly includes a magnet and an end cap secured to an end of the magnet. Each of the magnet and the end cap has a bore into which the shaft extends. The end cap forms an interference fit with the shaft. The magnet forms a clearance fit with the shaft and an adhesive is located in the clearance between the magnet and the shaft. Additionally, a method of manufacturing the rotor. The method includes inserting the shaft into the bore of the end cap. An adhesive is then introduced into the bore of the magnet and the shaft is inserted into the bore of the magnet so as to cause adhesive to be drawn into the clearance defined between the magnet and the shaft.

Abstract: A magnetic rotor including: a support structure with a rotational axis, with a front side having a first annular region encircling the rotational axis, and with a back side having a second annular region encircling the rotational axis, the support structure having a first array of pockets formed in the front side within the first annular region and encircling the rotational axis, and a second array of pockets formed in the back side within the second annular region and encircling the rotational axis, and wherein the pockets of the first array of pockets are interleaved with the pockets of the second array of pockets; a first plurality of magnets contained within the pockets of the first array of pockets on the first side of the support structure; and a second plurality of magnets contained within the pockets of the second array of pockets on the second side of the support structure, wherein the pockets of the first and second arrays of pockets have obstructions against which the magnets contained within the p

Abstract: The rotor of the rotating electric machine includes the rotor shaft and the rotor core. The rotor shaft has the shaft refrigerant passage and the refrigerant supplying port on the outer peripheral surface of the rotor shaft, the shaft refrigerant passage extending in an axial direction, the refrigerant supplying port communicating with the shaft refrigerant passage. The rotor core has the rotor core refrigerant passage and the refrigerant receiving port on the inner peripheral surface of the rotor core, the rotor core refrigerant passage extending in the axial direction, the refrigerant receiving port communicating with the rotor core refrigerant passage and facing the refrigerant supplying port of the rotor shaft. A clearance groove part is provided at a portion that is on the inner peripheral surface of the rotor core and that faces the refrigerant supplying port of the rotor shaft, the clearance groove part extending in the axial direction.

Abstract: A fastening arrangement (B?), for fastening of an electric motor (2) to a seat (S), includes a motor retaining element (F1, F2) and a motor locking element (A). The motor retaining element (F1, F2) is configured such that the electric motor (2) is adjustable into a rotational position (D). The motor locking element (A) is configured such that the electric motor (2) can be locked in a set rotational position (D). The motor locking element (A) is configured such that the electric motor (2) is retained so as to be non-displaceable in an axial direction and is secured against rotation by a torque lock. The motor locking element (A) has a polygonal profile (P). The outer profile of the motor locking element (A) has multiple surfaces distributed uniformly over the circumference, which surfaces form the shape of a polygon.

Abstract: Provided are a rotor of a rotary electrical machine, a rotary electrical machine, and a vehicle, which enable mitigation of stress concentration generated in a magnet insertion hole of a rotor core and high-speed rotation. A rotor 250 of a rotary electrical machine includes: a rotor core 252 including a plurality of magnet insertion holes 253 for each magnetic pole; and permanent magnets 254 inserted into the magnet insertion holes, in which a bridge portion 260, which mechanically connects a rotor core portion 256 on the outer circumferential side of the magnet insertion holes 253 and a rotor core portion 263 on the inner circumferential side of the magnet insertion holes 253, is provided between the adjacent magnet insertion holes, and the bridge portion 260 has two inflection points 266a and 266b on the outer circumferential side of the bridge portion 260.

Abstract: The laminated core (12) comprises laminations (10), which are arranged one over the other and which are each connected to each other by means of a first connection (9, 15). In addition, at least some of the laminations (10) are connected to each other by means of a second connection (11). By using two connections, the advantages thereof can be bundled, whereby the number and/or size of the connection points can be reduced while the requirement for the laminated core (12) remains the same or very high requirements for the laminated core (12) can be met or even increased. Advantageously, an adhesive is used as one of the connections (11), while the other connection (9, 15) can be a form-fitting connection. The adhesive (11) is applied to the lower side (13) and/or upper side (14) of the laminations (10) before or after the punching of the laminations (10). However, the two connections can also be formed by two adhesive systems.

Abstract: A rotating electric machine includes: a stator core having a plurality of slots aligned along a circumferential direction; a stator having a stator coil with an enamel coating inserted into the slots of the stator core; and a rotor rotatably arranged over the stator core through a given gap. The stator coil includes: main coils of a plurality of phases in which a plurality of segment coils each having a rectangular cross-section wire formed into a substantially U-shaped wire in advance is connected to each other; a first sub-coil having a lead wire led from the slots and attached with an AC terminal, and connected to one end of the respective main coils; and a second sub-coil having a neutral wire led from the slots, and connected to the other end of the respective main coils. The lead wire and the neutral wire are each formed of a wire with a bend structure having a plurality of straights and bends.

Abstract: A method and electrical machine includes a housing and a tube within a channel, wherein a first coolant can flow around the tube and a second coolant can flow through the tube, whereby in order to cool the electrical machine, the first coolant is conducted in a coolant circuit within the electrical machine, the second coolant is conducted through the electrical machine, and the first coolant medium is conducted through a rotor of the electrical machine such that a compact and efficient cooling of the electrical machine becomes possible.

Abstract: An electric motor including a rotor, a stator, a motor housing having a controller can, and a controller having an electronic component disposed within the controller can. The controller can includes an insert comprising thermally conductive metal for exchanging heat with an external heat sink space.

Abstract: An ammonia-resistant motor used for a closed-type refrigerating compressor comprising a stator and a rotor; during work, the stator and the rotor of the motor are immersed in the ammonia refrigerant; the winding, the slot wedge and the slot insulation are locked through self-lock fasteners, thereby preventing them from moving in the slot; the self-lock fasteners are fluorine plastic fasteners; the end portion of the motor winding is wound with a layer or multi-layers of fluorine plastic tape, and the outer layer of the fluorine plastic tape is provided with a binding tube; the binding tube is made from fluorine plastic, and the tensile strength of the binding tube is greater than that of the fluorine plastic tape.

Abstract: A linear actuator for an active motor mount of a motor vehicle includes a stator which has an electrically energizable coil for generating an electromagnetic field, as well as a magnetic armature which is mounted axially movable with regard to a longitudinal axis of the coil and has at least one permanent magnet ring which opposes the stator and has several permanent magnet ring segments. Between a surface of the permanent magnet ring segments which faces the stator and a surface of the stator which faces the permanent magnet ring segments there exists an angular gap with a gap angle (?) of preferably 4°.

Abstract: A motor-driven compressor includes a cluster block, which accommodates a connecting terminal. The connecting terminal connects an electric motor to a motor driving circuit. A second insulator includes a tubular base, extended portions, which extend from the base, and insulator flanges. Each insulator flange is located on an opposite end of each extended portion from the base. The cluster block is fastened to some of the insulator flanges on the opposite side of the insulator flanges from the extended portions. The cluster block includes a second wall, which faces some of the insulator flanges. The second wall includes engagement pieces, which project in the radial direction of the rotary shaft. The engagement pieces are each fitted to an opening portion, which is a gap between the insulator flanges that are adjacent to each other in the circumferential direction of the rotary shaft.