| 发明名称 |
Mini-fan unit especially for use as a fan for printed circuit boards |
| 摘要 |
A mini-fan unit for cooling a printed circuit board has a collectorless dc motor and a fan wheel driven by the dc motor. The dc motor is a single phase, single core claw pole motor having a back iron free permanent magnet rotor. At least one positioning magnet defines the starting position of the dc motor.
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| 申请公布号 |
US6013966(A) |
申请公布日期 |
2000.01.11 |
| 申请号 |
US19980169672 |
申请日期 |
1998.10.09 |
| 申请人 |
PAPST-MOTOREN GMBH & CO. KG |
发明人 |
FEHRENBACHER, WOLFGANG;MOINI, MOJTABE;SCHMIDER, FRITZ |
| 分类号 |
F04D17/16;F04D25/06;F04D29/28;H02K3/52;H02K5/00;H02K5/167;H02K5/22;H02K7/14;H02K29/03;H02K29/12;(IPC1-7):H02K1/12 |
主分类号 |
F04D17/16 |
| 代理机构 |
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