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    High bandwidth track following actuator for hard disk drives
    8.
    发明授权
    High bandwidth track following actuator for hard disk drives 失效
    用于硬盘驱动器的高带宽跟踪执行器

    公开(公告)号：US06707207B1

    公开(公告)日：2004-03-16

    申请号：US10324337

    申请日：2002-12-19

    申请人： Vijayeshwar D. Khanna ,  Hien Dang ,  Arun Sharma ,  Sri Sri-Jayantha

    发明人： Vijayeshwar D. Khanna ,  Hien Dang ,  Arun Sharma ,  Sri Sri-Jayantha

    IPC分类号： H02K1602

    CPC分类号： H02K7/09 ,  G11B5/4813 ,  G11B21/083 ,  H02K7/083

    摘要： A motor for incorporation in an actuator pivot includes a coil disk, an upper magnet-yoke disk, and a lower magnet-yoke disk. The coil disk is attached to the pivot shaft to form a shaft-coil assembly. The coil disk includes a plurality of coils, each placed orthogonally to the axis of the shaft. Each coil is configured to receive an electrical current in a first direction. A second coil located diametrically opposite to the first coil is configured to receive a second electrical current in a second direction so that the coils generate a torque with a net resultant linear force being substantially equal to zero. The first magnet-yoke disk, for mounting relative to the shaft at a location above the coil disk so that the first magnet-yoke disk rotates with respect to the coil disk, the magnet-yoke ring comprising at least one magnet, aligned in a first direction, and a respective plurality of yokes, each yoke for holding at least one magnet such that magnetic lines of flux are generated parallel to the axis. The second magnet-yoke disk is mounted relative to the shaft at a location below the coil disk so that the second magnet-yoke disk rotates with respect to the coil disk. The second magnet-yoke disk comprising a plurality of magnets, aligned in a direction opposite from the first direction, and a respective plurality of yokes, each yoke for holding a magnet such that magnetic lines of flux are generated parallel to the axis.

    摘要翻译： 用于结合在致动器枢轴中的电动机包括线圈盘，上磁轭和上磁轭。 线圈盘连接到枢轴以形成轴线圈组件。 线圈盘包括多个线圈，每个线圈与轴的轴线正交放置。 每个线圈被配置为在第一方向上接收电流。 位于与第一线圈径向相对的第二线圈被配置为在第二方向上接收第二电流，使得线圈产生具有基本上等于零的净合成线性力的转矩。 第一磁轭盘，用于在线圈盘上方的位置处相对于轴安装，使得第一磁轭盘相对于线圈盘旋转，磁轭环包括至少一个磁体， 第一方向和相应的多个轭，每个磁轭用于保持至少一个磁体，使得平行于该轴产生磁通的磁线。 第二磁轭盘相对于轴安装在线圈盘下方的位置，使得第二磁轭盘相对于线圈盘旋转。 第二磁轭盘包括沿与第一方向相反的方向排列的多个磁体和相应的多个磁轭，每个磁轭用于保持磁体，使磁通的磁线平行于该轴产生。