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    Motor and electronic device using same
    11.
    发明授权
    Motor and electronic device using same 有权
    电机和电子设备使用相同

    公开(公告)号：US08410654B2

    公开(公告)日：2013-04-02

    申请号：US12744159

    申请日：2008-12-11

    申请人： Yuichi Yoshikawa ,  Hiroshi Murakami ,  Atsuyoshi Koshiba ,  Koji Kadowaki ,  Haruki Kato ,  Yasuo Kunishige

    发明人： Yuichi Yoshikawa ,  Hiroshi Murakami ,  Atsuyoshi Koshiba ,  Koji Kadowaki ,  Haruki Kato ,  Yasuo Kunishige

    IPC分类号： H02K1/14 ,  H02K21/22

    CPC分类号： H02K21/22 ,  G01P3/487 ,  H02K1/148 ,  H02K1/187

    摘要： A motor comprises a stator having a plurality of magnetic poles disposed at first predetermined intervals along an outer periphery thereof, and a rotor having a permanent magnet with poles magnetized alternately to have different polarities at second predetermined intervals and disposed rotatably around the outer periphery of the stator with a predetermined gap. The magnetic poles of the stator has extended portions formed in a manner to extend from magnetic polar bases into a direction generally parallel to the permanent magnet, and the extended portions are formed of a high-permeability magnetic steel sheet with silicon content less than 3.0 wt-%.

    摘要翻译： 一种电动机包括：定子，具有沿着其外周以第一预定间隔设置的多个磁极;以及转子，其具有交替磁化的磁极，其具有以第二预定间隔具有不同极性的永久磁铁， 定子具有预定间隙。 定子的磁极具有延伸部，其形成为从磁性极性基底延伸到大致平行于永磁体的方向，并且延伸部由硅含量小于3.0重量％的高磁导率磁钢板形成 - ％。

    MOTOR AND ELECTRONIC DEVICE COMPRISING THE SAME
    12.
    发明申请
    MOTOR AND ELECTRONIC DEVICE COMPRISING THE SAME 有权
    包括其的电机和电子设备

    公开(公告)号：US20100259126A1

    公开(公告)日：2010-10-14

    申请号：US12741460

    申请日：2008-11-12

    申请人： Yuichi Yoshikawa ,  Hiroshi Murakami ,  Atsuyoshi Koshiba ,  Haruki Kato ,  Yasuo Kunishige ,  Koji Kadowaki ,  Hiroyuki Asai

    发明人： Yuichi Yoshikawa ,  Hiroshi Murakami ,  Atsuyoshi Koshiba ,  Haruki Kato ,  Yasuo Kunishige ,  Koji Kadowaki ,  Hiroyuki Asai

    IPC分类号： H02K1/14

    CPC分类号： H02K1/2706 ,  H02K1/146 ,  H02K1/148 ,  H02K1/187 ,  H02K11/20 ,  H02K11/215 ,  H02K21/222

    摘要： A motor comprising a stator having a plurality of magnetic poles disposed in a circumferential direction along an outer periphery thereof, a rotor disposed rotatably around the outer periphery of the stator, and a magnet disposed in a circumferential direction along an inner periphery of the rotor. The stator is formed by laminating sheet-like plates. A plurality of the sheet-like plates including an outermost layer of this laminated body comprises a flat portion substantially perpendicular to the magnet, and an extended portion bent to a direction substantially parallel to the magnet. A part of the sheet-like plate having the extended portion disposed to the outermost side is formed into a thickness smaller than thicknesses of the other parts.

    摘要翻译： 一种电动机，其具有沿着其外周沿圆周方向设置的多个磁极的定子，围绕所述定子的外周可旋转地设置的转子和沿着所述转子的内周沿周向配置的磁体。 定子通过层压板状板形成。 包括该层压体的最外层的多个片状板包括基本上垂直于磁体的平坦部分和向基本平行于磁体的方向弯曲的延伸部分。 具有设置在最外侧的延伸部的片状板的一部分形成为比其他部分的厚度小的厚度。

    MOTOR AND ELECTRONIC DEVICE USING SAME
    13.
    发明申请
    MOTOR AND ELECTRONIC DEVICE USING SAME 有权
    使用相同的电机和电子设备

    公开(公告)号：US20100244637A1

    公开(公告)日：2010-09-30

    申请号：US12744159

    申请日：2008-12-11

    申请人： Yuichi Yoshikawa ,  Hiroshi Murakami ,  Atsuyoshi Koshiba ,  Koji Kadowaki ,  Haruki Kato ,  Yasuo Kunishige

    发明人： Yuichi Yoshikawa ,  Hiroshi Murakami ,  Atsuyoshi Koshiba ,  Koji Kadowaki ,  Haruki Kato ,  Yasuo Kunishige

    IPC分类号： H02K1/02 ,  H02K1/27 ,  H02K11/00

    CPC分类号： H02K21/22 ,  G01P3/487 ,  H02K1/148 ,  H02K1/187

    摘要： A motor comprises a stator having a plurality of magnetic poles disposed at first predetermined intervals along an outer periphery thereof, and a rotor having a permanent magnet with poles magnetized alternately to have different polarities at second predetermined intervals and disposed rotatably around the outer periphery of the stator with a predetermined gap. The magnetic poles of the stator has extended portions formed in a manner to extend from magnetic polar bases into a direction generally parallel to the permanent magnet, and the extended portions are formed of a high-permeability magnetic steel sheet with silicon content less than 3.0 wt-%.

    摘要翻译： 一种电动机包括：定子，具有沿着其外周以第一预定间隔设置的多个磁极;以及转子，其具有交替磁化的磁极，其具有以第二预定间隔具有不同极性的永久磁铁， 定子具有预定的间隙。 定子的磁极具有延伸部，其形成为从磁性极性基底延伸到大致平行于永磁体的方向，并且延伸部由硅含量小于3.0重量％的高磁导率磁钢板形成 - ％。

    Electric motor having reduced cogging torque
    16.
    发明授权
    Electric motor having reduced cogging torque 有权
    电机具有减小的齿槽转矩

    公开(公告)号：US08970080B2

    公开(公告)日：2015-03-03

    申请号：US12100535

    申请日：2008-04-10

    申请人： Hu Li ,  Yuichi Yoshikawa ,  Hiroshi Murakami

    发明人： Hu Li ,  Yuichi Yoshikawa ,  Hiroshi Murakami

    IPC分类号： H02K16/02 ,  H02K29/03 ,  H02K1/27

    CPC分类号： H02K16/02 ,  H02K29/03

    摘要： Having a stator core including a yoke, a plurality of inside teeth, and a plurality of outside teeth, an inside rotor, and an output rotor, the inside slot open angle/inside pole angle and the outside slot open angle/outside pole angle are determined so that the inside cogging torque due to rotation of the inside rotor and the outside cogging torque due to rotation of the outside rotor may cancel each other in inverted phases. Plural combinations are provided so that the amplitude of inside cogging torque and the amplitude of outside cogging torque due to rotation of outside rotor maybe approximate values in inverted phase, and the combination of the highest combined voltage value of the both induced voltage is selected.

    摘要翻译： 具有包括轭，多个内齿和多个外齿的定子芯，内转子和输出转子，内槽开角/内极角和外槽开放角/外极角分别为 确定为使得由于内转子的旋转而产生的内齿槽转矩和由于外转子的旋转引起的外齿槽转矩在倒置相中彼此抵消。 提供了多个组合，使得内部齿槽转矩的振幅和由外部转子的旋转引起的外部齿槽转矩的振幅可以在反相中近似值，并且选择两个感应电压的最大组合电压值的组合。