MOTOR, COMPRESSOR, AND REFRIGERATION CYCLE APPARATUS

    公开(公告)号:US20240305155A1

    公开(公告)日:2024-09-12

    申请号:US18258433

    申请日:2021-02-24

    IPC分类号: H02K3/34 H02K1/16 H02K3/30

    摘要: A motor includes: a rotor including a rotor core having an annular shape about an axis, and permanent magnets attached to the rotor core; and a stator including a stator core having a core back surrounding the rotor from outside in a radial direction about the axis, teeth extending toward the rotor from the core back, and slots adjacent to the teeth in a circumferential direction about the axis, insulating portions fixed to the teeth, and windings, each being wound around the tooth via the insulating portion and having a conductive body made of aluminum. A radius Dr of the rotor core, a radius Ds of the stator core, and an area S of the slot satisfy: 25 mm≤Dr≤30 mm, 0.47≤Dr/Ds≤0.56, and 0.089≤S/Dr2≤0.224.

    MOTOR COIL AND MOTOR STATOR
    5.
    发明公开

    公开(公告)号:US20240204583A1

    公开(公告)日:2024-06-20

    申请号:US18082088

    申请日:2022-12-15

    IPC分类号: H02K1/16 H02K3/12 H02K3/30

    CPC分类号: H02K1/16 H02K3/12 H02K3/30

    摘要: A motor coil, which is a metal coil formed by a metal wire, the thickness of the metal wire is gradually decreased from the first end portion of the metal wire to the second end portion of the metal wire and any cross-sectional area of the metal wire is equal. The metal coil is a plural laminated layer of the metal wires forming a spiral shape along a surrounding direction. A motor stator comprises a stator core set having a plurality of teeth and the metal coil being sleeved on the outer surface of each stator core set, so that the first and the second end portion will face toward a motor core portion and outer portion respectively. The metal wire has a polymer layer on the outer surface, and an insulative coating is provided between the polymer layer and the metal wire.

    Motor and compressor
    6.
    发明授权

    公开(公告)号:US11955855B2

    公开(公告)日:2024-04-09

    申请号:US17276372

    申请日:2019-09-11

    发明人: Tomooki Hasegawa

    摘要: A motor includes a rotor, and a stator that generates a magnetic field to rotate the rotor. The stator includes a plurality of teeth, a plurality of winding wires including a winding portion wound around each of the plurality of teeth, a neutral wire provided on one end side of the winding portion, and a power wire provided on the other end side of the winding portion, and a plurality of neutral points at which a plurality of the neutral wires is electrically connected by connection terminals. The plurality of neutral wires includes a plurality of first fixation portions in which the plurality of neutral wires is fixed to each other in positions that are on a winding portion side compared to the plurality of neutral points, and a second fixation portion in which the plurality of neutral wires is fixed to each other from the plurality of first fixation portions to the plurality of neutral points.

    Stator for an electric machine having insulation paper for a stator winding

    公开(公告)号:US11901786B2

    公开(公告)日:2024-02-13

    申请号:US17585604

    申请日:2022-01-27

    IPC分类号: H02K3/34 H02K3/48 H02K3/30

    摘要: A stator for an electric machine provided for purely electrically driving a motor vehicle is provided with a stator body forming stator grooves, a stator winding through which current can flow, which engages in the respective stator groove and axially protrudes from the stator groove, for forming an electromagnetic rotating field and an insulation paper, which is provided in the stator groove between the stator winding and the stator body, for electrically insulating the stator winding from the stator body, wherein the insulation paper protrudes from the stator groove, wherein the insulation paper is provided with an additional layer on the surface thereof for providing a higher creepage resistance compared to the surface of the insulation paper without the additional layer.

    STATOR CORE, ASSEMBLY COMPRISING A STATOR CORE AND SLOT LININGS, STATOR, ELECTRIC MACHINE AND VEHICLE

    公开(公告)号:US20240030758A1

    公开(公告)日:2024-01-25

    申请号:US18257155

    申请日:2021-12-08

    IPC分类号: H02K1/16 H02K3/34 H02K3/30

    CPC分类号: H02K1/165 H02K3/345 H02K3/30

    摘要: A stator core for receiving a stator winding and slot linings. A respective slot lining has a first end extending along an axial direction, a second end situated opposite the first end and extending along the axial direction, a first end section extending from the first end toward the second end, and a second end section extending from the second end toward the first end and is overlapped by the first end section on an outer side of the respective slot lining. A multiplicity of slots are arranged in the circumferential direction is formed in the stator core, a respective slot having a first slot wall which delimits the slot in the circumferential direction, a second slot wall which is situated opposite the first slot wall and delimits the slot in the circumferential direction, and a slot base which delimits the slot in the radial direction.