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    ROTOR ASSEMBLY FOR AN ELECTRIC MACHINE
    2.
    发明公开
    ROTOR ASSEMBLY FOR AN ELECTRIC MACHINE 审中-公开

    公开(公告)号：US20240291336A1

    公开(公告)日：2024-08-29

    申请号：US18379320

    申请日：2023-10-12

    申请人： BorgWarner Inc.

    发明人： Kevin Patrik Geimer ,  Henning Scheel ,  Tim Weiland

    IPC分类号： H02K1/32 ,  H02K7/00

    CPC分类号： H02K1/32 ,  H02K7/003

    摘要： The present disclosure relates to a rotor assembly for an electric machine. The rotor assembly comprises a rotating shaft, a rotor and a fluid cooling system. The rotor is fixed to the rotating shaft. The rotor comprises a rotor core, a first end plate and a second end plate. The first end plate is provided at a first axial end of the rotor core. The second end plate is provided at a second axial end of the rotor core. The fluid cooling system comprises at least one fluid cooling pathway provided internally in the rotor. The at least one fluid cooling pathway is configured to guide cooling fluid through the rotor, and comprises at least one cooling channel and a downstream end plate channel. The at least one cooling channel extends through the rotor core from the first axial end to the second axial end. The downstream end plate channel is fluidically connected to a downstream end of the at least one cooling channel. The downstream end plate channel is restricted radially outwards by a radially outer wall portion. The at least one cooling channel is restricted radially inwards by a radially inner wall portion. A radially innermost position of the radially outer wall portion is arranged in a range about or at or radially inwards of a radially innermost position of a radially inner wall portion.

    ROTOR FOR AN ELECTRIC MACHINE
    4.
    发明公开
    ROTOR FOR AN ELECTRIC MACHINE 审中-公开

    公开(公告)号：US20240275227A1

    公开(公告)日：2024-08-15

    申请号：US18439781

    申请日：2024-02-13

    申请人： Dr. Ing. h.c. F. Porsche Aktiengesellschaft

    发明人： Johannes LANGE

    IPC分类号： H02K1/32 ,  H02K1/276 ,  H02K15/02 ,  H02K15/12

    CPC分类号： H02K1/32 ,  H02K1/276 ,  H02K15/02 ,  H02K15/12

    摘要： A rotor for an electric machine includes at least one inner sheet package arranged on a rotor shaft defining a rotor longitudinal axis and buried magnets arranged radially around the at least one inner sheet package, which are arranged in a radial direction between the inner sheet package and correspondingly arranged outer sheet packages and fixed by a casting compound. The rotor further includes a plurality of surface magnets arranged on the outer sheet packages, each surface magnet forming a rotor pole in conjunction with a respective one of the outer sheet packages on which it is arranged and at least one of the buried magnets. At least one cooling channel extending along the rotor longitudinal axis is arranged in at least one of the inner or outer sheet packages and is sealed by a casting compound in a medium-tight manner.

    Electric motor
    5.
    发明授权
    Electric motor 有权

    公开(公告)号：US12062970B2

    公开(公告)日：2024-08-13

    申请号：US17790998

    申请日：2020-02-21

    申请人： Mitsubishi Electric Corporation

    发明人： Naoki Hayami ,  Tetsuya Sakurada

    IPC分类号： H02K9/06 ,  H02K1/20 ,  H02K1/32

    CPC分类号： H02K9/06 ,  H02K1/20 ,  H02K1/32

    摘要： An electric motor includes a shaft supported rotatably around a rotation axis, a rotor located radially outward from the shaft and rotatable integrally with the shaft, and a stator radially opposing the rotor. At least one of the rotor or the stator includes a ventilation path that is a through hole. The ventilation path has a branched shape. A total length of inner circumferential surface lengths of branched ventilation paths in a cross section perpendicular to a penetration direction of the ventilation path is longer than an inner circumferential surface length of an unbranched ventilation path in the cross section perpendicular to the penetration direction.

    ROTOR
    8.
    发明公开
    ROTOR 审中-公开

    公开(公告)号：US20240223034A1

    公开(公告)日：2024-07-04

    申请号：US18392045

    申请日：2023-12-21

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Hironori ASAOKA ,  Hideaki MIYAZONO ,  Hiroki KATO ,  Fumiaki YAMATO ,  Kiichi YOKOYAMA

    IPC分类号： H02K1/32 ,  H02K7/00

    CPC分类号： H02K1/32 ,  H02K7/003

    摘要： The present teachings provide a rotor. The rotor 10 may comprise: a shaft 12; a rotor core 20; a first end plate 50; and a second end plate 52. Rotor core 20 may comprise a first flow path 22a which allows the coolant to flow from the one side to the other side of the axial direction and a second flow path 22d which allows the coolant to flow from the other side to the one. First end plate 50 may comprise a first communication flow path 54a which allows the coolant to flow from shaft 12 to first flow path 22a. Second end plate 52 may comprise a second communication flow path 54d which allows the coolant to flow from shaft 12 to second flow path 22d.

    COOLING OF AN ELECTRIC MOTOR
    10.
    发明公开
    COOLING OF AN ELECTRIC MOTOR 审中-公开

    公开(公告)号：US20240195249A1

    公开(公告)日：2024-06-13

    申请号：US18556288

    申请日：2022-04-22

    申请人： Punch Powertrain PSA e-transmissions NV

    发明人： Antonius Arnoldus Maria VAN DEURZEN ,  Paul Johannes Mathias MEERTS

    IPC分类号： H02K1/32 ,  H02K9/19

    CPC分类号： H02K1/32 ,  H02K9/19

    摘要： A spray disc is provided for a rotor assembly for an electric motor, comprising a spray disc body with an inner radius and an outer radius. The spray disc body comprises a first spray outlet and a second spray outlet, provided at or near the outer radius of the spray disc body and a spray disc conduit network, providing a fluid flow path between the inner radius of the spray disc body and the first and second spray outlets through the spray disc body, wherein the first spray outlet is axially offset from the second spray outlet. As such, a larger surface area of stator windings may be sprayed.