发明授权
US08659199B2 Axial gap permanent magnet motor, rotor used for the same, and production method of the rotor
有权
轴向间隙永磁电机，转子用于相同，以及转子的制造方法
- 专利标题： Axial gap permanent magnet motor, rotor used for the same, and production method of the rotor
- 专利标题（中）： 轴向间隙永磁电机，转子用于相同，以及转子的制造方法
-
申请号： US12971034申请日： 2010-12-17
-
公开(公告)号： US08659199B2公开(公告)日： 2014-02-25
- 发明人: Hirooki Tokoi , Yuji Enomoto
- 申请人： Hirooki Tokoi , Yuji Enomoto
- 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： Antonelli, Terry, Stout & Kraus, LLP.
- 优先权： JP2009-287270 20091218
- 主分类号： H02K21/12
- IPC分类号： H02K21/12 ; H02K1/04 ; H02K15/12
摘要：
A stator and a rotor are oppositely arranged having a gap between the stator and the rotor in a direction parallel to a rotary shaft. The rotor has permanent magnets forming field magnetic poles and soft magnetic material segments to cover at least stator-facing surfaces of the respective permanent magnets. Each of the soft magnetic materials forms a composite part together with the permanent magnet. The rotor further has a disc-shaped nonmagnetic molded frame molded so as to cover the periphery of the composite part including the permanent magnet and the soft magnetic material segment while leaving a stator-facing surface of the soft magnetic material segment as an exposed surface. The composite part (including the permanent magnet and the soft magnetic material) and the nonmagnetic molded frame are integrated by molding of the molded material.