发明名称 |
Centrifugal fan |
摘要 |
<p>An arrangement of a low air inlet and a circuit for driving a torque generator in an ultra-compact centrifugal fan is disclosed. In the ultra-compact centrifugal fan, a region occupied by the circuit is not completely arranged radially inside a cup-shaped portion to which an impeller is attached. At least a part of the low air inlet provided on a bottom of a housing of the centrifugal fan is arranged in a range of predetermined angle in an imaginary ring-shaped portion surrounding a base portion covered by the cup-shaped portion. A part of the circuit, that is not covered by the cup-shaped portion, is arranged upstream of the range of the predetermined angle in a flowing direction of airflow.</p> |
申请公布号 |
EP1820971(B1) |
申请公布日期 |
2008.08.27 |
申请号 |
EP20070003246 |
申请日期 |
2007.02.15 |
申请人 |
NIDEC CORPORATION |
发明人 |
TESHIMA, HIROYOSHI;TAKESHITA, KAZUMI;NAGAMATSU, HIDEKI;KONISHI, HIDEAKI;TAKAOKA, TSUKASA;IDA, KIYOTO |
分类号 |
F04D25/06;F04D25/08;F04D29/42;H01L23/34 |
主分类号 |
F04D25/06 |
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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