发明名称 |
Direct current motor, yoke housing of the direct current motor and manufacturing method thereof |
摘要 |
A yoke housing that receives an armature has a plurality of permanent magnets (primary magnetic poles) secured to an inner peripheral surface of the yoke housing. Furthermore, the yoke housing includes a plurality of groove-like reduced thickness portions for increasing a magnetic resistance. Each reduced thickness portion extends along a center line of a corresponding one of the permanent magnets.
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申请公布号 |
US2002047381(A1) |
申请公布日期 |
2002.04.25 |
申请号 |
US20010842731 |
申请日期 |
2001.04.27 |
申请人 |
TORII KATSUHIKO;YAMAMURA KENGO;YAMAMOTO HIROAKI |
发明人 |
TORII KATSUHIKO;YAMAMURA KENGO;YAMAMOTO HIROAKI |
分类号 |
H02K15/14;H02K23/04;(IPC1-7):H02K5/00 |
主分类号 |
H02K15/14 |
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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