Permanent magnet rotor,申请号US19830534991-传众专利搜索

Permanent magnet rotor

申请公布号：US4472651(A)

申请号：US19830534991

申请日期：1983.09.22

申请公布日期：1984.09.18

申请人：

GENERAL ELECTRIC COMPANY

发明人：JONES, DONALD W.

分类号：H02K1/27;(IPC1-7):H02K21/12

主分类号：H02K1/27

摘要：A rotor for a permanent magnet machine comprises an even plurality of pole pieces joined together by intermediate nonmagnetic segments to form a hollow cylinder. A plurality of magnets is situated adjacent to the interior portion of the pole pieces, with the magnets defining a central axial opening. A rotor core has a plurality of saucer shaped elements arranged in a stack situated inside the central opening. Means for providing opposing axial forces to the rotor core tend to flatten the saucer shaped elements and thereby cause radial expansion of the rotor core holding the magnets against the interior of the hollow cylinder.