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    • 16. 发明申请
    • ROTATING ELECTRICAL MACHINE
    • 旋转电机
    • US20090261679A1
    • 2009-10-22
    • US12065305
    • 2006-08-31
    • Kazuto SakaiNorio TakahashiMasanori ArataMotoyasu MochizukiMasakatsu MatsubaraYasuo HiranoTakashi Hanai
    • Kazuto SakaiNorio TakahashiMasanori ArataMotoyasu MochizukiMasakatsu MatsubaraYasuo HiranoTakashi Hanai
    • H02K1/27
    • H02K21/14H02K1/276H02K1/2766H02K29/03H02K2213/03
    • An object of the present invention is to provide an internal permanent magnet type rotating electrical machine capable of maintaining compactness and high output and reducing vibration and noise caused by electromagnetic force. The rotating electrical machine of the present invention has an annular stator and a rotor that is arranged inside the stator with an air gap interposed between the stator and the rotor. The stator has a stator iron core provided with a plurality of slots at circumferential intervals and a coil received in each of the slots. The rotor has a rotor iron core, a plurality of permanent magnets embedded in a plurality of magnetic pole forming positions that are set along an outer circumference of the rotor iron core, an iron core section that faces the air gap and is magnetized by the permanent magnets to form a magnetic pole on an air gap fronting face at each of the magnetic pole forming positions, and an axially extending recess formed at a circumferentially central part of the air gap fronting face of each of the iron core sections.
    • 本发明的目的是提供一种能够保持紧凑性和高输出并且减少由电磁力引起的振动和噪声的内部永磁式旋转电机。 本发明的旋转电机具有环形定子和转子,该环形定子和转子配置在定子的内部,并具有夹在定子和转子之间的气隙。 定子具有定子铁心,其设置有周向间隔的多个槽,并且在每个槽中容纳线圈。 转子具有转子铁芯,多个永久磁铁嵌入沿着转子铁芯的外周设置的多个磁极形成位置,铁心部分面向气隙并被永久磁化 磁体,以在每个磁极形成位置上的气隙前面形成磁极,以及形成在每个铁芯部分的气隙前面的周向中心部分的轴向延伸的凹部。