Cooling fan

Details Cooling fan Cooling fan

2006-07-07

2008-10-28

Lam, Thanh (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S071000, C310S089000

Reexamination Certificate

active

07443065

ABSTRACT:
A cooling fan includes: a casing having a base wall and a surrounding wall that extends transversely from the base wall, and that has an inner wall surface and a top opening; a stator mounted on the inner wall surface of the surrounding wall; a shaft protruding from the base wall; a fan blade unit including an annular hub that is journalled rotatably to the shaft, a supporting ring that surrounds the hub, and a plurality of blades that extend between and that are connected to the hub and the supporting ring; a rotor mounted on the supporting ring; and a cover in the form of a circuit board mounted on the top end face of the surrounding wall for covering the top opening in the casing and including a substrate formed with a central opening.

REFERENCES:
patent: 6841957 (2005-01-01), Brown
patent: 6975052 (2005-12-01), Uchida et al.
patent: 7078844 (2006-07-01), Chang et al.
patent: 7132769 (2006-11-01), Uchida et al.
patent: 7332841 (2008-02-01), Hsu
patent: 7358631 (2008-04-01), Morishitahara
patent: 2002/0057022 (2002-05-01), Yamamoto
patent: 2003/0117029 (2003-06-01), Horng et al.

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