Invention Grant
- Patent Title: Spindle motor having an electrostatic discharge path
- Patent Title (中): 具有静电放电路径的主轴电机
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Application No.: US14003072Application Date: 2012-03-12
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Publication No.: US09209668B2Publication Date: 2015-12-08
- Inventor: Jong Hoon Lee , Chang Seob Song
- Applicant: Jong Hoon Lee , Chang Seob Song
- Applicant Address: KR
- Assignee: SAMHONGSA CO., LTD.
- Current Assignee: SAMHONGSA CO., LTD.
- Current Assignee Address: KR
- Agency: Cantor Colburn LLP
- Priority: KR10-2011-0022458 20110314
- International Application: PCT/KR2012/001770 WO 20120312
- International Announcement: WO2012/124951 WO 20120920
- Main IPC: G11B33/14
- IPC: G11B33/14 ; G11B17/028 ; H02K5/167 ; H02K11/00 ; G11B19/20

Abstract:
Provided is a spindle motor having an electrostatic discharge (ESD) path that can stably discharge electric charges introduced from the outside to a rotating shaft through a base plate, in a structure of forming a bearing housing by using a resin and insert-molding the base plate. The spindle motor includes: a rotor to the central portion of which one end of a rotating shaft is coupled; a bearing that rotatably supports the rotating shaft; a bearing housing that accommodates the bearing in the inside of a groove and that is made of a resin; and a base plate whose inner circumferential portion is buried and combined in the inside of the bearing housing, wherein part of the base plate is in contact with the bearing to thus discharge externally introduced static electricity through the rotating shaft, bearing, and the base plate.
Public/Granted literature
- US20130342055A1 SPINDLE MOTOR HAVING AN ELECTROSTATIC DISCHARGE PATH Public/Granted day:2013-12-26
Information query
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