发明授权
- 专利标题: DC motor
- 专利标题(中): 直流电机
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申请号: US98862申请日: 1998-06-17
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公开(公告)号: US5982064A公开(公告)日: 1999-11-09
- 发明人: Fumihiro Umeda , Shuji Takahashi
- 申请人: Fumihiro Umeda , Shuji Takahashi
- 申请人地址: JPX Kyoto
- 专利权人: Nidec Corporation
- 当前专利权人: Nidec Corporation
- 当前专利权人地址: JPX Kyoto
- 优先权: JPX9-160232 19970617; JPX9-369016 19971227
- 主分类号: H02K5/167
- IPC分类号: H02K5/167 ; F04D29/04 ; H02K5/173 ; H02K5/18 ; H02K7/08 ; H02K5/00
摘要:
The DC motor according to the present invention includes one radial ball bearing and a thrust bearing constituted by a shaft receiving member provided on a housing to be abutted by one end of a rotating shaft. Further, a magnetic and/or a spring bias force is applied to the rotating shaft to supplement thrust load bearing force of the thrust bearing. Compared with conventional DC motors in which a rotor is supported by a shaft through a pair of ball bearings which are axially spaced apart from each other, the present invention enables reduction of the overall motor height without harming the rotational stability while simultaneously achieving low production cost.
公开/授权文献
- USD422826S Folding closet 公开/授权日:2000-04-18
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