发明名称 |
Permanent magnet rotor type electric motor |
摘要 |
In a permanent magnet rotor type electric motor having a stator core generating a rotation magnetic field and provided therein with a rotor core in which each magnetic pole is formed by a permanent magnet, the rotor core is fabricated by coaxially and unitedly joining a first core member and a second core member, in which a first permanent magnet of a predetermined cross-section shape is embedded per magnetic pole in the first core member, and a second permanent magnet which is made of a different material and has a different cross-section shape from those of the first permanent magnet is embedded per magnetic pole in the second core member, thereby achieving the permanent magnet rotor type electric motor having the performance and size appropriate for the intended use. <IMAGE> |
申请公布号 |
EP0930691(A1) |
申请公布日期 |
1999.07.21 |
申请号 |
EP19980308680 |
申请日期 |
1998.10.23 |
申请人 |
FUJITSU GENERAL LIMITED |
发明人 |
NARITA, KENJI;SUZUKI, TAKASHI;OKUDERA, HIROYUKI;KAWAI, YUJI;SOUMA YUJI;KAWANISHI, KOJI;FUKUDA, YOSHICHIKA |
分类号 |
H02K29/00;H02K1/27;H02K15/03;H02K16/02 |
主分类号 |
H02K29/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|