发明授权
US07379274B2 Rotational PZT micro-actuator, head gimbal assembly, and disk drive unit with the same
失效
旋转PZT微型执行机构，磁头万向节组件和磁盘驱动单元相同
- 专利标题： Rotational PZT micro-actuator, head gimbal assembly, and disk drive unit with the same
- 专利标题（中）： 旋转PZT微型执行机构，磁头万向节组件和磁盘驱动单元相同
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申请号： US11080659申请日： 2005-03-16
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公开(公告)号： US07379274B2公开(公告)日： 2008-05-27
- 发明人: Ming Gao Yao , Masashi Shiraishi
- 申请人： Ming Gao Yao , Masashi Shiraishi
- 申请人地址： CN Hong Kong
- 专利权人： SAE Magnetics (H.K.) Ltd.
- 当前专利权人： SAE Magnetics (H.K.) Ltd.
- 当前专利权人地址： CN Hong Kong
- 代理机构： Nixon & Vanderhye P.C.
- 优先权： CN200510052034 20050228
- 主分类号： G11B5/596
- IPC分类号： G11B5/596 ; G11B21/24
摘要：
A head gimbal assembly (HGA) for a disk drive unit that includes a micro-actuator, a slider and a suspension to load the slider and the micro-actuator. The micro-actuator includes a pair of actuator side arms, a PZT element extending between and connecting the actuator side arms; a rotatable plate positioned between the actuator side arms, wherein the slider is mounted on the rotatable plate; and a pair of connection elements that connect the rotatable plate to the actuator side arms, respectively. The rotatable plate rotates in a first direction when the PZT element contracts and a second direction when the PZT element expands.