发明申请
- 专利标题: MOTOR
- 专利标题(中): 发动机
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申请号: US13457862申请日: 2012-04-27
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公开(公告)号: US20120319543A1公开(公告)日: 2012-12-20
- 发明人: Masaki ADACHI , Yoshiaki OGUMA , Yasuyuki KAJI
- 申请人: Masaki ADACHI , Yoshiaki OGUMA , Yasuyuki KAJI
- 申请人地址: JP Kyoto
- 专利权人: NIDEC CORPORATION
- 当前专利权人: NIDEC CORPORATION
- 当前专利权人地址: JP Kyoto
- 优先权: JP2011-135497 20110617; JP2011-264492 20111202
- 主分类号: H02K11/00
- IPC分类号: H02K11/00
摘要:
A motor includes a cover made of a resin material. The cover includes a first annular portion arranged to extend in an annular shape above coils, a side wall portion arranged to extend downward from an outer circumferential portion of the first annular portion, and a second annular portion arranged to extend radially outward or radially inward from a lower end portion of the side wall portion along an upper surface of a circuit board. The side wall portion is arranged to extend in an axial direction while filling in gaps between teeth on a radially inner side of radially outer end surfaces of the teeth. The coils are covered by the cover to be protected from dust, water droplets, etc. The radially outer end surfaces of the teeth are exposed from the cover, and are thus arranged to be in radial proximity to a rotor magnet.
公开/授权文献
- US08946948B2 Motor with stator cover formed by overlapping two members 公开/授权日:2015-02-03
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