利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

26 条记录 (耗时 0.019 秒)

    Disk drive unit
    1.
    发明公开
    Disk drive unit 失效
    电动机和电动机。

    公开(公告)号：EP0509635A2

    公开(公告)日：1992-10-21

    申请号：EP92302048.1

    申请日：1992-03-11

    申请人： HITACHI, LTD. ,  JAPAN SERVO CO. LTD.

    发明人： Tajima, Fumio ,  Kanazawa, Hiroshi ,  Katayama, Hiroshi ,  Ohnishi, Kazuo ,  Takashashi, Tadashi ,  Mutoh, Nobuyoshi ,  Morinaga, Shigeki ,  Tsuboi, Nobuyoshi ,  Nihei, Hideki

    IPC分类号： H02K1/14 ,  H02K7/14 ,  H02K29/00 ,  H02K21/16 ,  G11B19/20 ,  G11B25/04 ,  G11B17/028 ,  G11B19/28 ,  G11B21/02 ,  H01L41/09 ,  G11B33/12

    CPC分类号： G11B25/043 ,  G11B19/20 ,  H02K1/14 ,  H02K1/146 ,  H02K7/14 ,  H02K16/00 ,  H02K21/16 ,  H02K41/03 ,  H02K2201/15

    摘要： A motor has a stator (4) and a rotor (3), the stator (4) having cores (9A) and drive coils (1) which generate magnetic fields for rotating the rotor (3). The stator (4) also has a yoke (9B,9C) surrounding the rotor (3) and the rotor (3) is positioned such that it is closer to one part (9B) of the outer periphery of the yoke than another part (9B) of the yoke. Such a motor is particularly suitable for use in a disk drive unit as a spindle motor (2) for rotating the disk (1). Then an actuator (12) for moving a head (11) may be located adjacent the part (9B) of the outer periphery of the yoke (9b,9C) which is closest to the rotor. This permits the head (11) to approach closely the axis of rotation of the disk (1) without the spindle motor (2) interfering with the movement of the head (11). The continuous yoke (9B,9C) prevents magnetic flux leakage from the spindle motor interfering with the actuator (12). The actuator (12) may itself have a yoke (9D) integral with the yoke (9B,9C) of the spindle motor (2), and/or other components in common.

    摘要翻译： 电动机具有定子（4）和转子（3），定子（4）具有芯（9A）和驱动线圈（1），其产生用于旋转转子（3）的磁场。 定子（4）还具有围绕转子（3）的轭（9B，9C），并且转子（3）被定位成使其更靠近轭的外周的一部分（9B）而不是另一部分 9B）。 这样的电动机特别适用于作为用于旋转盘（1）的主轴电机（2）的盘驱动单元。 然后，用于移动头部（11）的致动器（12）可以位于最接近转子的轭架（9b，9C）的外周的部分（9B）附近。 这使得头部11能够紧密地接近盘（1）的旋转轴线，而主轴马达（2）不影响头部（11）的运动。 连续轭（9B，9C）防止来自主轴电动机的磁通量泄漏干扰致动器（12）。 致动器（12）本身可以具有与主轴电机（2）的轭架（9B，9C）成一体的轭架（9D）和/或共同的其他部件。

    Rotating electrical machine
    5.
    发明公开
    Rotating electrical machine 审中-公开
    旋转电机

    公开(公告)号：EP2012409A2

    公开(公告)日：2009-01-07

    申请号：EP08011066.1

    申请日：2008-06-18

    申请人： Hitachi, Ltd.

    发明人： Enomoto, Yuji ,  Miyata, Kenji ,  Ishikawa, Yoshihisa ,  Makiyama, Takahiro ,  Ito, Motoya ,  Koyama, Takayuki ,  Kanazawa, Hiroshi

    IPC分类号： H02K1/14 ,  H02K1/27

    CPC分类号： H02K1/145 ,  H02K1/243 ,  H02K5/15

    摘要： A rotating electrical machine includes: a claw pole stator constituted with a stator core that includes a plurality of claw poles and a stator coil wound inside the stator core; and a rotor rotatably disposed at a position facing opposite the claw poles. The stator core is constituted of split blocks each corresponding to at least one of magnetic pole pairs each made up with two claw poles assuming different magnetic polarities when an electric current is supplied to the stator coil.

    摘要翻译： 一种旋转电机，包括：爪极定子，由定子铁芯构成，所述定子铁芯包括多个爪极和卷绕在所述定子铁芯内的定子线圈; 以及可转动地设置在与爪极相对的位置的转子。 定子芯由分割块构成，每个分割块对应于至少一个磁极对，当向定子线圈供应电流时，所述至少一个磁极对由呈现不同磁极性的两个爪极组成。

    Drive force transmission for vehicle ac generator
    6.
    发明公开
    Drive force transmission for vehicle ac generator 审中-公开
    传动车辆交流发电机

    公开(公告)号：EP1237256A3

    公开(公告)日：2004-11-10

    申请号：EP01121633.0

    申请日：2001-09-12

    申请人： Hitachi, Ltd.

    发明人： Kanazawa, Hiroshi ,  Tahara, Kazuo ,  Honda, Yoshiaki ,  Takano, Masami ,  Seino, Hiromitsu ,  Tanaka, Naoyuki

    IPC分类号： H02K7/116 ,  H02K9/19

    CPC分类号： H02K9/19 ,  H02K7/116

    摘要： In order to provide a small sized, high speed rotation and high output vehicle use AC generation system, a vehicle use AC generator and a vehicle use AC generator use drive force transmission system which enhances output in a broad range from a low speed to a high speed, in a vehicle use AC generation system including a vehicle use AC generator coupled to a crank pulley shaft of an engine via a pulley, the vehicle use AC generator being provided with a rotor having magnetic poles and a field winding for magnetizing the magnetic poles, a stator which is disposed being spaced apart with a predetermined gap with respect to the rotor and has a stator winding for generating an AC voltage through magnetization of the magnetic poles, a first shaft to which the pulley is provided and a second shaft integral with the rotor, wherein the first shaft is disposed within the side face of the vehicle use AC generator and at a equivalent position with respect to the second shaft when seen from the crank pulley shaft or rather at the side of the crank pulley shaft from the second shaft and the first shaft and the second shaft are coupled via a motive force transmission mechanism including a transmission for increasing speed at the side of the pulley. Further, a vehicle use AC generator is provided with a rotor 401 including a pair of claw shaped magnetic poles 405A and 405B and a field winding 406 wound radially inside with respect to the pair of claw shaped magnetic poles 405A and 405B and a stator 414 in which a stator winding 415 is wound on a stator iron core 414, and is further provided with a drive force transmission shaft 419 which is provided independent from a rotary shaft 403 of the rotor 401 and transmits a drive force to the rotary shaft 403 after increasing the rpm.