发明授权
- 专利标题: Axially asymmetric permanent magnet machine
- 专利标题(中): 轴向不对称永磁机
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申请号: US13448508申请日: 2012-04-17
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公开(公告)号: US08884485B2公开(公告)日: 2014-11-11
- 发明人: Sinisa Jurkovic , Khwaja M. Rahman , Xinyu Zhou , Xu Han , Qiang Niu
- 申请人: Sinisa Jurkovic , Khwaja M. Rahman , Xinyu Zhou , Xu Han , Qiang Niu
- 申请人地址: US MI Detroit
- 专利权人: GM Global Technology Operations
- 当前专利权人: GM Global Technology Operations
- 当前专利权人地址: US MI Detroit
- 代理机构: Quinn Law Group, PLLC
- 主分类号: H02K21/12
- IPC分类号: H02K21/12
摘要:
A permanent magnet machine is provided with a rotor positioned at least partially within a stator. The rotor includes first and second ring segments oriented axially around a central axis. The rotor defines first and second configurations in the first and second ring segments, respectively. The first configuration is sufficiently different from the second configuration such that torque ripple may be minimized. A first layer of slots, defining a slot outer edge, may be formed in the rotor. In one embodiment, a stator-to-slot gap varies between the first and second ring segments. In another embodiment, a stator-rotor gap varies between the first and second ring segments. In another embodiment, a bridge thickness varies between the first and second ring segments. Thus the rotor exhibits axial asymmetry.
公开/授权文献
- US20130270952A1 AXIALLY ASYMMETRIC PERMANENT MAGNET MACHINE 公开/授权日:2013-10-17