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    • 5. 发明授权
    • Voice coil motor actuator vibration isolator
    • 音圈电机执行器隔振器
    • US06310749B1
    • 2001-10-30
    • US09136622
    • 1998-08-19
    • Paul A. BeattyWalter WongJames Staggers
    • Paul A. BeattyWalter WongJames Staggers
    • G11B554
    • G11B5/4813
    • A disk drive having a novel actuator assembly. The actuator assembly comprises a voice coil motor assembly, a pivotable actuator arm, and a head gimbal assembly including a read/write head. The voice coil motor assembly is attached at a back end of the actuator arm, and the head gimbal assembly is mounted on the actuator arm on a front end opposite of the back end. The voice coil motor assembly includes a voice coil interposed between two magnets and a top plate and a bottom plate. The voice coil motor assembly is secured to the base of the disk drive by posts. The actuator arm includes the back end, a pivot point and impeding apertures. The impeding apertures include two holes located near the back end of the actuator arm between the pivot point and the voice coil motor assembly and extend entirely through the actuator arm. The actuator arm may also include plugging members. The plugging members are inserted into the impeding apertures and extend entirely through the impeding apertures. The plugging members are of the same circumferential size and configuration as the impeding apertures. In operation, the voice coil motor assembly produces a force which pivots the actuator arm in order to position the read/write heads over individual tracks on the disk. The force produced by the voice coil motor assembly creates a vibration which emanates throughout the actuator arm and propagates toward the read/write heads. The vibration reaches the impeding apertures and is reflected back towards the voice coil motor. The vibration may also be dampened if plugging members are inserted in the impeding apertures.
    • 具有新型致动器组件的磁盘驱动器。 致动器组件包括音圈电机组件,可枢转致动器臂和包括读/写头的头万向架组件。 音圈电动机组件安装在致动器臂的后端,并且头部万向节组件安装在致动器臂上,该前端与后端相对。 音圈电动机组件包括插入在两个磁体和顶板和底板之间的音圈。 音圈电机组件通过柱固定到磁盘驱动器的基座。 致动器臂包括后端,枢轴点和阻挡孔。 阻挡孔包括位于枢转点和音圈电动机组件之间的致动器臂的后端附近的两个孔,并且完全延伸穿过致动器臂。 致动器臂还可以包括堵塞构件。 堵塞构件被插入到阻挡孔中并且完全延伸穿过阻挡孔。 堵塞构件具有与阻挡孔相同的周向尺寸和构造。 在操作中,音圈电动机组件产生使致动器臂枢转的力,以便将读/写头定位在盘上的各个轨道上。 由音圈电动机组件产生的力产生在整个致动器臂上产生的振动,并向读/写头传播。 振动到达阻挡孔并被朝向音圈电机反射回来。 如果阻塞构件插入阻碍孔中,振动也可以被抑制。