发明授权
- 专利标题： Electrical-steel-sheet formed body for rotor core, rotor, rotary electric machine and related method
- 专利标题（中）： 转子铁心，转子，旋转电机用钢板成型体及相关方法
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申请号： US10420777申请日： 2003-04-23
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公开(公告)号： US06891297B2公开(公告)日： 2005-05-10
- 发明人: Munekatsu Shimada , Hideaki Ono , Tetsurou Tayu , Makoto Kano , Yu Owada , Naoshi Sakata , Mitsuo Uchiyama , Toshimitsu Matsuoka , Kimihiro Shibata , Shinichiro Kitada
- 申请人： Munekatsu Shimada , Hideaki Ono , Tetsurou Tayu , Makoto Kano , Yu Owada , Naoshi Sakata , Mitsuo Uchiyama , Toshimitsu Matsuoka , Kimihiro Shibata , Shinichiro Kitada
- 申请人地址： JP Kanagawa-ken
- 专利权人： Nissan Motor Co., Ltd.
- 当前专利权人： Nissan Motor Co., Ltd.
- 当前专利权人地址： JP Kanagawa-ken
- 代理机构： McDermott Will & Emery LLP
- 优先权： JPP2002-124320 20020425; JPP2002-349943 20021202
- 主分类号： H02K1/22
- IPC分类号： H02K1/22 ; H02K1/02 ; H02K1/27 ; H02K15/02 ; H02K15/03 ; H02K21/14 ; H02K21/12
摘要：
An electrical-steel-sheet formed body is provided with an opening portion into which a permanent magnet is inserted, and an outer-peripheral hardened portion formed on the electrical-steel-sheet formed body at an outer periphery side thereof for the opening portion and having a higher hardness than a remaining area of the electrical-steel-sheet formed body. The electrical-steel-sheet formed body can be used as the rotor of the built-in permanent magnet type rotary electric machine, and the built-in permanent magnet type rotary electric machine can be obtained.
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