Disk drive comprising a voice coil motor having a yoke with a multiple-bend magnetic flux conductor
    1.
    发明授权
    Disk drive comprising a voice coil motor having a yoke with a multiple-bend magnetic flux conductor 有权
    磁盘驱动器包括具有带多弯曲磁通导体的磁轭的音圈电机

    公开(公告)号:US06529351B1

    公开(公告)日:2003-03-04

    申请号:US09775161

    申请日:2001-01-31

    IPC分类号: G11B2108

    CPC分类号: G11B5/553 G11B5/5521

    摘要: A disk drive is disclosed comprising an actuator arm, a head coupled to the actuator arm, and a voice coil motor for actuating the actuator arm to move the head. The voice coil motor comprises a first magnet for generating a first magnetic flux, and a yoke comprising a magnetic flux conductor for guiding the first magnetic flux. The magnetic flux conductor comprises a body and a top and bottom protruding plate portions, wherein the body and the plate portions are integrally formed. The body defines, in vertical cross section, a primary bend having a primary bend radius and at least one secondary bend having a secondary bend radius.

    摘要翻译: 公开了一种磁盘驱动器,其包括致动器臂,联接到致动器臂的磁头和用于致动致动器臂以移动磁头的音圈电机。 音圈电动机包括用于产生第一磁通的第一磁体和包括用于引导第一磁通的磁通导体的磁轭。 磁通导体包括主体和顶部和底部突出板部分,其中主体和板部分一体地形成。 主体在垂直横截面中限定具有初级弯曲半径的主弯曲部和具有次弯曲半径的至少一个次弯曲部。

    Voice coil motor comprising a voice coil wrapped around a rotary voice coil yoke comprising a low reluctance end and a high reluctance end
    4.
    发明授权
    Voice coil motor comprising a voice coil wrapped around a rotary voice coil yoke comprising a low reluctance end and a high reluctance end 有权
    音圈电动机包括缠绕在旋转音圈上的音圈,该音圈包括低磁阻端和高磁阻端

    公开(公告)号:US06462914B1

    公开(公告)日:2002-10-08

    申请号:US09704188

    申请日:2000-10-31

    IPC分类号: G11B555

    CPC分类号: G11B5/5521

    摘要: The present invention may be regarded as a disk drive comprising a disk, an actuator arm comprising a head, and a voice coil motor for actuating the actuator arm to position the head radially over the disk. The voice coil motor comprises a first magnet for generating a first magnetic flux, and a rotary voice coil yoke comprising a magnetic flux conductor shaped to form an air gap with respect to the first magnet, the magnetic flux conductor comprising a first end having a first reluctance and a second end having a second reluctance, wherein the first reluctance is substantially lower than the second reluctance such that the magnetic flux conductor guides the first magnetic flux through the air gap and through the first end. A voice coil is wrapped around at least part of the magnetic flux conductor for conducting a current to generate a second magnetic flux such that at least part of the second magnetic flux is within the air gap for interacting with the first magnetic flux.

    摘要翻译: 本发明可以被认为是包括盘,包括头部的致动器臂和用于致动致动器臂以将头部径向定位在盘上的音圈电动机的盘驱动器。 音圈电动机包括用于产生第一磁通量的第一磁体和包括相对于第一磁体形成气隙的磁通导体的旋转音圈磁轭,该磁通导体包括具有第一磁通的第一端 磁阻和具有第二磁阻的第二端,其中所述第一磁阻基本上低于所述第二磁阻,使得所述磁通导体将所述第一磁通量引导通过所述气隙并且穿过所述第一端。 音圈缠绕在磁通导体的至少一部分上,用于传导电流以产生第二磁通量,使得至少部分第二磁通量位于气隙内,以与第一磁通相互作用。