Invention Grant
US08385017B2 Spindle motor including fluid bearing and storage disk drive including the same
有权
主轴电动机包括流体轴承和包括其的存储盘驱动器
- Patent Title: Spindle motor including fluid bearing and storage disk drive including the same
- Patent Title (中): 主轴电动机包括流体轴承和包括其的存储盘驱动器
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Application No.: US13198794Application Date: 2011-08-05
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Publication No.: US08385017B2Publication Date: 2013-02-26
- Inventor: Junya Mizukami , Takayuki Oe , Yoichi Sekii , Naoki Sabashi , Takehito Tamaoka , Takashi Yamamoto , Shigeki Horiki , Kazushi Miura , Mitsuhiro Takemoto
- Applicant: Junya Mizukami , Takayuki Oe , Yoichi Sekii , Naoki Sabashi , Takehito Tamaoka , Takashi Yamamoto , Shigeki Horiki , Kazushi Miura , Mitsuhiro Takemoto
- Applicant Address: JP Kyoto
- Assignee: Nidec Corporation
- Current Assignee: Nidec Corporation
- Current Assignee Address: JP Kyoto
- Agency: Keating & Bennett, LLP
- Priority: JP2010-178965 20100809; JP2011-046788 20110303
- Main IPC: G11B17/02
- IPC: G11B17/02 ; H02K7/08
Abstract:
In a motor, an annular radially extending gap is defined between an outer annular surface and a lower surface of an annular cover portion. The radially extending gap has an axial width smaller than a maximum width of an upper seal portion defined between an outer circumferential surface of an upper thrust portion and an inner circumferential surface of a tubular portion. An annular axially extending gap is defined between an inner cylindrical surface and a radially inner edge of the annular cover portion. The axially extending gap has a radial width smaller than the maximum width of the upper seal portion.
Public/Granted literature
- US20120033329A1 SPINDLE MOTOR AND STORAGE DISK DRIVE Public/Granted day:2012-02-09
Information query
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