发明名称 |
Permanent magnet type electric rotating machine |
摘要 |
A permanent magnetic type electric rotating machine includes: a stator having armature winding arranged in several slots formed in a stator core; and a rotor having permanent magnets held in several permanent magnetic insertion holes formed in a rotor core, in which a peripheral surface of the rotor core is configured to be a combination of arcs around two points different from a center of the rotor core for each magnetic pole in such a manner that when an axis extending in a central direction of a magnetic pole of the rotor is a d axis, and an axis extending in a direction between magnetic poles that is offset from the central direction of the magnetic pole by 90 electrical degrees is a q axis, a radial distance from a center of the rotor core to a periphery of the rotor is reduced gradually from the d axis to the q axis.
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申请公布号 |
US6759777(B2) |
申请公布日期 |
2004.07.06 |
申请号 |
US20020207264 |
申请日期 |
2002.07.30 |
申请人 |
HITACHI, LTD. |
发明人 |
TAKAHATA RYOICHI;WAKUI SHINICHI;KOHARAGI HARUO;KIKUCHI SATOSHI;TAKAHASHI MIYOSHI |
分类号 |
H02K1/22;F04B35/04;F25B49/02;H02K1/00;H02K1/18;H02K1/24;H02K1/27;H02K21/12;H02K21/14;H02K21/16;H02K21/22;H02K29/06;(IPC1-7):H02K21/14 |
主分类号 |
H02K1/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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