Invention Grant
- Patent Title: Spindle motor and disk drive apparatus
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Application No.: US15046760Application Date: 2016-02-18
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Publication No.: US09721608B2Publication Date: 2017-08-01
- Inventor: Katsuya Takahashi , Masahiro Shiraishi
- Applicant: Nidec Corporation
- Applicant Address: JP Kyoto
- Assignee: NIDEC CORPORATION
- Current Assignee: NIDEC CORPORATION
- Current Assignee Address: JP Kyoto
- Agency: Keating & Bennett, LLP
- Priority: JP2015-218472 20151106
- Main IPC: G11B19/20
- IPC: G11B19/20 ; H02K5/10 ; H02K5/167 ; H02K5/15

Abstract:
A motor includes a rotating portion including a rotor magnet, and arranged to rotate about a central axis extending in a vertical direction; a bearing mechanism arranged to support the rotating portion such that the rotating portion is rotatable about the central axis; a stator portion arranged opposite to the rotor magnet; a housing arranged to accommodate the rotating portion, the bearing mechanism, and the stator portion therein; and a sealing member. The housing includes a base portion substantially in a shape of a plate and arranged to extend radially below the rotating portion. The base portion includes a first lower surface arranged to face downward, and a through hole arranged to pass through the base portion in the vertical direction and arranged to have a portion of the bearing mechanism arranged therein. The sealing member is arranged to cover a lower side of the through hole, and includes at least a metal layer.
Public/Granted literature
- US20160267937A1 SPINDLE MOTOR AND DISK DRIVE APPARATUS Public/Granted day:2016-09-15
Information query
IPC分类: