Invention Grant
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
- Patent Title: Rotating device using a fluid dynamic bearing with magnet and suction plate
- Patent Title (中): 旋转装置采用带磁铁和吸盘的流体动力轴承
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Application No.: US13523362Application Date: 2012-06-14
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Publication No.: US08913343B2Publication Date: 2014-12-16
- Inventor: Daiki Hayashi
- Applicant: Daiki Hayashi
- Applicant Address: JP Shizuoka
- Assignee: Samsung Electro-Mechanics Japan Advanced Technology Co., Ltd.
- Current Assignee: Samsung Electro-Mechanics Japan Advanced Technology Co., Ltd.
- Current Assignee Address: JP Shizuoka
- Agency: Blank Rome LLP
- Priority: JP2011-165332 20110728
- Main IPC: G11B19/20
- IPC: G11B19/20 ; G11B25/04
Abstract:
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.
Public/Granted literature
- US20130027807A1 ROTATING DEVICE USING A FLUID DYNAMIC BEARING Public/Granted day:2013-01-31
Information query
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