发明授权
US08913343B2 Rotating device using a fluid dynamic bearing with magnet and suction plate
有权
旋转装置采用带磁铁和吸盘的流体动力轴承
- 专利标题： Rotating device using a fluid dynamic bearing with magnet and suction plate
- 专利标题（中）： 旋转装置采用带磁铁和吸盘的流体动力轴承
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申请号： US13523362申请日： 2012-06-14
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公开(公告)号： US08913343B2公开(公告)日： 2014-12-16
- 发明人: Daiki Hayashi
- 申请人： Daiki Hayashi
- 申请人地址： JP Shizuoka
- 专利权人： Samsung Electro-Mechanics Japan Advanced Technology Co., Ltd.
- 当前专利权人： Samsung Electro-Mechanics Japan Advanced Technology Co., Ltd.
- 当前专利权人地址： JP Shizuoka
- 代理机构： Blank Rome LLP
- 优先权： JP2011-165332 20110728
- 主分类号： G11B19/20
- IPC分类号： G11B19/20 ; G11B25/04
摘要：
A disk drive device comprises: a hub; a base rotatably supporting the hub via a bearing; a core fixed to the base; a cylindrical magnet fixed to the hub; and a suction plate fixed to the base, the suction plate being arranged to face the cylindrical magnet in a direction along the rotational axis and made of magnetic material. The suction plate is arranged so that the minimum distance between the suction plate and the rotational axis is greater than the minimum distance between the cylindrical magnet and the rotational axis. A projection area created by projecting the cylindrical magnet onto a plane that is perpendicular to the rotational axis partially overlaps a projection area created by projecting the suction plate onto the plane.
公开/授权文献
- US20130027807A1 ROTATING DEVICE USING A FLUID DYNAMIC BEARING 公开/授权日：2013-01-31
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