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发明公开
CN1979643A 微驱动器、磁头折片组合及其磁盘驱动单元 失效 - 放弃专利权

微驱动器、磁头折片组合及其磁盘驱动单元
摘要：
本发明公开了一种用于磁头折片组合的微驱动器，包括：支撑框架；该支撑框架包括：适于连接到所述磁头折片组合的悬臂件上的底支撑部；适于支撑所述磁头折片组合的磁头的顶支撑部；及连接所述底支撑部和顶支撑部的引柱，该引柱包括允许所述顶支撑部在使用时能够沿旋转轴线旋转的弱点或凹槽；以及第一压电元件和第二压电元件，所述第一压电元件安装在所述顶支撑部和底支撑部的第一侧部，所述第二压电元件安装在所述顶支撑部和底支撑部的第二侧部，所述第一压电元件和第二压电元件可被激发从而可使所述顶支撑部在使用时沿所述旋转轴线选择性地旋转移动。本发明还公开了设有该微驱动器的磁头折片组合以及磁盘驱动单元。
摘要（英）：

The invention discloses a micro-actuator for magnetic head gimbal assembly, comprising: supporting frame, which comprises: bottom supporting portion suitable to be connected to suspension of the magnetic head gimbal assembly; top supporting portion suitable to support the magnetic head of the magnetic head gimbal assembly; and guide column connecting the bottom and top supporting portions and comprising weak point or groove allowing the top supporting portion to be able to rotate around rotating axis in use; and first piezoelectric component and second piezoelectric component, where the first one is mounted on the first sides of the top and bottom supporting portions and the second one is mounted on the second sides of them, and the two piezoelectric components can be actuated to be able to make the top supporting portion selectively rotate and move round the rotating axis. And the invention discloses a magnetic head gimbal assembly provided with the micro-actuator and a disc drive unit.

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