发明名称 |
Single-bearing permanent-magnet motor |
摘要 |
Vibration applied to a rotary shaft in an axial direction is suppressed when the rotary shaft is supported by a single hearing. A width dimension in a direction parallel with an axial direction of rotor-side magnetic poles of a permanent magnet unit is set to be larger than a width dimension in the direction parallel with the axial direction of stator-side magnetic poles. The rotor-side magnetic poles are fixed to a peripheral wall portion of a cup member such that the rotor-side magnetic poles completely face the stator-side magnetic poles and project toward a front side further than an end face of the stator-side magnetic poles on a motor support side. By using thrust formed of magnetic attracting force generated by decentering a magnetic center of the rotor-side magnetic poles and a magnetic center of the stator-side magnetic poles, the vibration of the rotary shaft in the axial direction is suppressed.
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申请公布号 |
US6437471(B1) |
申请公布日期 |
2002.08.20 |
申请号 |
US20000571704 |
申请日期 |
2000.05.15 |
申请人 |
SANYO DENKI CO., LTD. |
发明人 |
OGAWARA TOSHIKI;IKEDA TOMOAKI |
分类号 |
H02K5/04;H02K5/18;H02K7/08;H02K7/09;H02K7/14;(IPC1-7):H02K5/16;H02K5/173 |
主分类号 |
H02K5/04 |
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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