Heat dissipation fan
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United States of America Patent
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Oct 19, 2004
Grant Date -
Jul 29, 2004
app pub date -
Jan 28, 2003
filing date -
Jan 28, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
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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