发明名称 |
Cooling fan |
摘要 |
A cooling fan (1) includes a fan housing (10), a stator (20), a rotor (30) and a bearing assembly (40). A tube (111) extends upwardly from a central portion of the fan housing. The stator is mounted around the tube. The bearing assembly includes a ball bearing (333) and a sleeve bearing (335) received in two ends of the tube, respectively. The rotor has a shaft (336) extending into and roratably supported by the bearing assembly. An elastic element (332) is arranged on the ball bearing to provide a pressing force on the ball bearing toward the sleeve bearing. An oil retaining element (339) is arranged around a bottom end of the shaft and spaced from the shaft. The oil retaining element is attached to the sleeve bearing to provide oil for the sleeve bearing.
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申请公布号 |
US8100673(B2) |
申请公布日期 |
2012.01.24 |
申请号 |
US20080056297 |
申请日期 |
2008.03.27 |
申请人 |
ZHANG YONG-KANG;YANG ZHI-YA;LI YING-LIANG;FU ZHUN PRECISION INDUSTRY (SHEN ZHEN) CO., LTD.;FOXCONN TECHNOLOGY CO., LTD. |
发明人 |
ZHANG YONG-KANG;YANG ZHI-YA;LI YING-LIANG |
分类号 |
F04D29/046;F04B35/04;F04D29/04;F04D29/05;F04D29/056;F16C21/00 |
主分类号 |
F04D29/046 |
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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