发明授权
- 专利标题： Permanent magnet electric rotating machine and electromotive vehicle using permanent magnet electric rotating machine
- 专利标题（中）： 永磁电动旋转机及电动车采用永磁电动旋转机
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申请号： US08946581申请日： 1997-10-07
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公开(公告)号： US06208054B1公开(公告)日： 2001-03-27
- 发明人: Fumio Tajima , Yutaka Matsunobu , Shouichi Kawamata , Suetaro Shibukawa , Osamu Koizumi , Keiji Oda
- 申请人： Fumio Tajima , Yutaka Matsunobu , Shouichi Kawamata , Suetaro Shibukawa , Osamu Koizumi , Keiji Oda
- 优先权： JP8-275826 19961018
- 主分类号： H02K2112
- IPC分类号： H02K2112
摘要：
A magnetic gap is provided between a permanent magnet of a rotor and an auxiliary magnetic pole portion which is arranged adjacent to the permanent magnet in a peripheral direction. A gradual change in a magnetic flux density distribution of a surface of the rotor is obtained and a cogging torque and a torque pulsation are restrained. By obtaining a reluctance torque according to the auxiliary magnetic pole, a permanent magnet electric rotating machine in which the cogging torque and the torque pulsation are restrained can be obtained and further an electromotive vehicle having the permanent magnet electric rotating machine can be provided.
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