Heat dissipation structure of a fan unit

Details Heat dissipation structure of a fan unit Heat dissipation structure of a fan unit

1998-08-19

2000-04-18

Walberg, Teresa

Pumps

Motor driven

Including means utilizing pump fluid for augmenting cooling,...

4174238, 41742312, F04B 1700

Patent

active

060507861

ABSTRACT:
A heat dissipation structure of a heat-dissipating box fan is disclosed. The structure is used for dissipating the heat generated by the motor of the fan unit. The structure has a bearing sleeve that comprises a hub in the form of a generally hollow cylindrical column and a sleeve base. The hub is inserted inside a central through hole of the fan motor, and the sleeve base covers the base of the plastic frame of the fan unit at the end of the frame opposing the other with the motor installed. A number of heat dissipation fins are formed over the lateral peripheral surface of the base of the bearing sleeve. The hub of the bearing sleeve has a hollow column shape of a polygonal peripheral configuration at the end close to the base and a hollow column shape of a cylindrical configuration for the remaining section thereof.

REFERENCES:
patent: 3644066 (1972-02-01), Heob et al.
patent: 5340291 (1994-08-01), Benckert et al.
patent: 5584675 (1996-12-01), Steurer et al.
patent: 5957667 (1999-09-01), Epp

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