Patent ID: 8414274
Filing Date: 2013-04-09
Classification: F04D,H02K

Abstract:
1. A heat dissipating fan comprising: a housing including an air inlet and an air outlet communicated with the air inlet, with an air passageway formed between the air inlet and the air outlet, with a fixed seat provided in the air passageway, with the fixed seat interconnected by a plurality of connecting members to the housing, with the fixed seat including a through-hole and a plurality of first positioning holes extending in an axial direction; a first casing made of magnetically conductive material, with the first casing including a first outer wall having first and second ends, with the first outer wall of the first casing closely fitting the through-hole of the fixed seat, with an extended wall formed at the first end of the first outer wall, with the extended wall and the first outer wall having different diameters to form a shoulder having a plurality of second positioning holes aligned with the first positioning holes, with the first casing and the housing coupling with each other by a plurality of fasteners, with a first support formed at the second end of the first outer wall; a second casing coupled to an inner periphery of the extended wall of the first casing, with the second casing including a second support; a motor mounted in the first casing, with the motor including a rotor and a stator, with the rotor including a shaft and a magnetic element, with the shaft rotatable supported by the first and second supports, with an impeller coupled to the shaft, with the magnetic element aligned with the stator; and a circuit board electrically connected to the stator.