Permanent magnet rotating electric machine
    1.
    发明公开
    Permanent magnet rotating electric machine 有权
    机器électriquetournanteà瞄准器永久物

    公开(公告)号:EP2418756A1

    公开(公告)日:2012-02-15

    申请号:EP10196712.3

    申请日:2010-12-23

    申请人: Hitachi Ltd.

    IPC分类号: H02K1/27 H02K1/32

    摘要: A permanent magnet rotating machine has a stator (2), in which armature windings (4) are formed in a plurality of slots formed in a stator iron core, and also has a rotor (1), in which two magnet insertion slots (6) are formed for each pole in a rotor iron core (5) in a V shape when viewed from the outer circumference of the rotor and one permanent magnet (7) is embedded in each magnet insertion slot with polarity alternating for each pole; a wall at one end of the magnet insertion slot on the external diameter side of the rotor is formed with three arcs (R1, RC, and R2) having different curvatures, one (RC) of the three arcs being parallel to the outer circumference (10) of the rotor, and a wall at the other end of the magnet insertion slot on the internal diameter side (11) of the rotor is formed in an arc shape. When this structure is used, a permanent magnet rotating machine can be provided, which can reduce peak stress and leakage magnetic fluxes from magnets, can have superior electrical characteristics, and can reduce stress.

    摘要翻译: 永磁旋转机具有定子(2),其中电枢绕组(4)形成在形成在定子铁芯中的多个槽中,并且还具有转子(1),其中两个磁体插入槽 )形成为从转子的外周观察时为V字形的转子铁芯(5)中的每个极,并且每个磁极插入槽中嵌入一个永磁体(7),每个磁极具有交替的极性; 在转子的外径侧的磁体插入槽的一端的壁形成有具有不同曲率的三个弧(R1,RC和R2),三个弧的一个(RC)平行于外周( 10),并且在转子的内径侧(11)上的磁体插入口的另一端的壁形成为弧形。 当使用这种结构时,可以提供永磁旋转机器,其可以降低峰值应力和来自磁体的漏磁磁通,可以具有优异的电特性,并且可以减少应力。

    Permanent magnet type rotary electric machine
    4.
    发明公开
    Permanent magnet type rotary electric machine 审中-公开
    Rotierende elektrische Maschine mit永磁体

    公开(公告)号:EP2355306A2

    公开(公告)日:2011-08-10

    申请号:EP11000002.3

    申请日:2011-01-03

    申请人: Hitachi, Ltd.

    IPC分类号: H02K1/27

    摘要: A rotary electric machine, wherein the rotation direction of a rotor (1) is a defined direction, a groove (10, 29 - 34, 61) is provided in a rotor core (5) on the radial outside with respect to permanent magnets (7 and 8), and the groove (10, 29 - 34, 61) is provided in a position inclined from the centerline (11) between the permanent magnets (7 and 8) within a magnetic pole head and at the same time in a position excluding an end portion of a permanent magnet insertion hole on the radial outside, in order to enable a reduction in a no-load induced electromotive force and prevention of a decrease in output.

    摘要翻译: 一种旋转电机,其中转子(1)的旋转方向是确定的方向,在径向外侧的转子芯(5)中相对于永久磁铁(5)设置槽(10,29-34,61) 7和8),并且槽(10,29,34,61)设置在从磁极头内的永磁体(7和8)之间的中心线(11)倾斜的位置,同时在 以排除径向外侧的永磁体插入孔的端部,以便能够减小空载感应电动势并防止输出降低。