发明授权
- 专利标题: Rotating electrical machine
- 专利标题(中): 旋转电机
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申请号: US13035395申请日: 2011-02-25
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公开(公告)号: US08304953B2公开(公告)日: 2012-11-06
- 发明人: Akihito Nakahara , Hiroyuki Mikami , Kazumasa Ide , Kazuhiko Takahashi , Kenichi Hattori
- 申请人: Akihito Nakahara , Hiroyuki Mikami , Kazumasa Ide , Kazuhiko Takahashi , Kenichi Hattori
- 申请人地址: JP Tokyo
- 专利权人: Hitachi, Ltd.
- 当前专利权人: Hitachi, Ltd.
- 当前专利权人地址: JP Tokyo
- 代理机构: Brundidge & Stanger, P.C.
- 优先权: JP2008-114765 20080425; JP2009-101527 20090420
- 主分类号: H02K1/02
- IPC分类号: H02K1/02 ; H02K1/06 ; H02K9/00
摘要:
A rotating electrical machine includes: a rotor comprising a rotor core and a field winding wound round the rotor core; and a stator comprising a stator core and a stator winding wound round the stator core. The stator is arranged in opposition to the rotor with a predetermined spacing therebetween. the stator core is formed by punching a split piece, which comprises teeth for insertion of the stator winding thereinto and a core back on an outer periphery thereof, from a magnetic steel sheet, and laminating a plurality of those circular configurations in an axial direction, in which a plurality of the split pieces are arranged in a circle in a circumferential direction. The stator core has magnetic steel sheets, which are different in magnetic permeability in a diametrical direction, laminated at an axial end region of and in an axial central region of the stator core.
公开/授权文献
- US20110140566A1 ROTATING ELECTRICAL MACHINE 公开/授权日:2011-06-16