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1.
公开(公告)号:US20080136285A1
公开(公告)日:2008-06-12
申请号:US11952170
申请日:2007-12-07
申请人: Fumio Tajima , Teruyoshi Abe , Motoya Ito , Yoshihisa Ishikawa , Masashi Kitamura , Toshuyuki Ajima
发明人: Fumio Tajima , Teruyoshi Abe , Motoya Ito , Yoshihisa Ishikawa , Masashi Kitamura , Toshuyuki Ajima
CPC分类号: H02K15/022 , G11B17/028 , G11B17/038 , G11B19/2009 , H02K1/146 , Y10T29/49009
摘要: The spindle motor has a stator and rotor. The stator has a stator core comprising a yoke and salient poles and also includes a stator coil. The stator core is formed by laminated steel sheets. The salient poles made of the steel sheets are formed by etching. The steel sheet is 0.05 to 0.30 mm thick. The steel sheet used in the present invention is preferably a silicon steel sheet having crystal particles. The iron loss and cogging torque of the inventive spindle motor are reduced.
摘要翻译: 主轴电机具有定子和转子。 定子具有包括磁轭和凸极的定子芯,并且还包括定子线圈。 定子铁芯由层压钢板形成。 由钢板制成的凸极由蚀刻形成。 钢板厚度为0.05〜0.30mm。 本发明中使用的钢板优选为具有结晶粒子的硅钢板。 本发明的主轴电机的铁损和齿槽转矩减小。