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21. 发明授权

US06805536B2 Heat dissipation fan 失效
公开(公告)号：US06805536B2
公开(公告)日：2004-10-19
申请号：US10353179
申请日：2003-01-28
申请人： Tsung-Yung Hung
发明人： Tsung-Yung Hung
IPC分类号： F01D2508
CPC分类号： H05K7/20172 , F04D17/16 , F04D25/0613 , F04D25/0693 , F04D29/626
摘要： A heat dissipation fan having a side mount configuration includes a casing having a bottom wall and a surrounding side wall extending from the bottom wall to define an open top. The side wall also defines a side opening to guide an air flow toward a heat source. A cross bar is detachably mounted to the open top or is made of resilient material. A shaft is arranged inside the casing and has upper and lower ends removably received in a recess defined in the cross bar and a notch defined in the bottom wall of the casing. A blade assembly comprised of a cylinder and blades extending from the cylinder is rotatably mounted to the shaft. Windings and magnets are arranged inside the cylinder. Electrical wires are electrically connected to the windings via conductive pads formed on the upper end of the shaft or by extending through openings defined in the upper end of the shaft. No control circuit is included in the casing, the distance between the blades and the bottom wall can be substantially reduced and the structure is simplified.

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