发明授权
- 专利标题： Spindle motor with the stator core supported by a resin member
- 专利标题（中）： 主轴电机，定子芯由树脂构件支撑
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申请号： US853121申请日： 1992-03-18
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公开(公告)号： US5334895A公开(公告)日： 1994-08-02
- 发明人: Yuji Morioka , Masanobu Chuta , Kuniyasu Iwazaki , Kihachiro Ohta
- 申请人： Yuji Morioka , Masanobu Chuta , Kuniyasu Iwazaki , Kihachiro Ohta
- 申请人地址： JPX Kyoto
- 专利权人： Nippon Densan Corporation
- 当前专利权人： Nippon Densan Corporation
- 当前专利权人地址： JPX Kyoto
- 优先权： JPX3-081713 19910320; JPX3-081769 19910320; JPX3-089964 19910327
- 主分类号： F16J15/43
- IPC分类号： F16J15/43 ; G11B19/20 ; H02K1/18 ; H02K5/124 ; H02K5/173 ; H02K7/14 ; H02K11/00 ; H02K5/00
摘要：
A spindle motor having a housing, a hub member rotatable relative to the housing, a bearing disposed between the housing and the hub member, a rotor magnet mounted on the hub member, and a stator disposed in a facing relationship with the rotor magnet. The hub member includes a supporting wall portion, which cooperates with the stator to constitute an air seal structure. A magnetic fluid seal is provided at a position outward of the bearing, and includes a conductive plate for grounding static electricity. The bearing is comprised of a radial ball bearing, which includes certain improvement.
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