Methods and apparatus for a permanent magnet machine with a direct liquid cooled stator
    1.
    发明授权
    Methods and apparatus for a permanent magnet machine with a direct liquid cooled stator 有权
    具有直接液冷定子的永磁机的方法和装置

    公开(公告)号:US08247933B2

    公开(公告)日:2012-08-21

    申请号:US12432385

    申请日:2009-04-29

    IPC分类号: H02K9/00

    CPC分类号: H02K1/20 H02K9/19

    摘要: A permanent magnetic machine includes a stator body having a first end, a second end, and a plurality of generally radial slots formed therein for accepting a set of windings having a first set of end-turns at the first end and a second set of end-turns at the second end. The stator body has a plurality of channels adjacent to the slots and extending from the first end of the stator body to the second end of the stator body, wherein the channels are configured to allow the flow of a cooling fluid therethrough. A plurality of nozzles in fluid communication with the plurality of channels are configured to spray the cooling fluid onto the first and second set of end turns.

    摘要翻译: 永磁机器包括定子体,该定子体具有形成在其中的第一端,第二端和多个大体上的径向槽,用于接收在第一端具有第一组端匝的一组绕组,以及第二组端 转到第二端。 定子体具有与槽相邻并且从定子体的第一端延伸到定子体的第二端的多个通道,其中通道构造成允许冷却流体流过其中。 与多个通道流体连通的多个喷嘴构造成将冷却流体喷射到第一组和第二组端匝上。

    Methods and apparatus for a permanent magnet machine with segmented ferrite magnets
    2.
    发明授权
    Methods and apparatus for a permanent magnet machine with segmented ferrite magnets 有权
    具有分段铁氧体磁体的永磁机的方法和装置

    公开(公告)号:US07902711B2

    公开(公告)日:2011-03-08

    申请号:US12330958

    申请日:2008-12-09

    IPC分类号: H02K1/27

    摘要: An internal permanent magnet machine (“IPM machine”) of the type used, for example, with traction motors and hybrid electric vehicles, includes a rotor having a plurality of equal-sized (e.g., rectilinear) segmented ferrite magnets arranged in one or more layers. The magnets are inserted within rotor slots that are larger than the magnets themselves, such that one or more air gaps are formed adjacent to the magnets in each layer.

    摘要翻译: 用于例如牵引电动机和混合动力电动车辆的内部永磁体机(“IPM机”)包括具有多个相等尺寸(例如,直线))分段的铁氧体磁体的转子,其布置在一个或多个 层。 这些磁体插入在比磁体本身大的转子槽内,使得在每个层中邻近磁体形成一个或多个气隙。

    Methods and apparatus for preventing demagnetization in interior permanent magnet machines
    4.
    发明授权
    Methods and apparatus for preventing demagnetization in interior permanent magnet machines 有权
    用于防止内部永久磁铁退磁的方法和装置

    公开(公告)号:US07843100B2

    公开(公告)日:2010-11-30

    申请号:US12406686

    申请日:2009-03-18

    IPC分类号: H02K7/00

    摘要: An internal permanent magnet machine (“IPM machine”) of the type used, for example, with traction motors and hybrid electric vehicles, includes a rotor having a plurality of ferrite magnets arranged in one or more layers, wherein at least one of the layers includes rare earth magnets (e.g., NdFeB magnets) adjacent to the ferrite magnets to prevent or reduce demagnetization.

    摘要翻译: 用于例如牵引电动机和混合电动车的类型的内部永久磁铁机(“IPM机”)包括具有以一层或多层布置的多个铁氧体磁体的转子,其中至少一个层 包括与铁氧体磁体相邻的稀土磁体(例如,NdFeB磁体),以防止或减少退磁。