Axial fan motor

Details Axial fan motor Axial fan motor

2008-03-03

2010-06-15

Lam, Thanh (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S089000, C310S091000, C310S06700R

Reexamination Certificate

active

07737589

ABSTRACT:
A motor includes a rotor portion including a shaft and a rotor magnet rotatable about a center axis, an armature arranged opposite to the rotor magnet to generate a torque therebetween, a circuit board arranged below the armature in an axial direction substantially parallel to the center axis and including a control circuit controlling rotation of the rotor portion, and a base portion including a bearing holder which supports the armature on its outer side surface and the shaft on its inner side surface via a bearing member. The armature is pressed against the bearing holder in the axial direction with an elastic member.

REFERENCES:
patent: 4438361 (1984-03-01), Manson
patent: 4607182 (1986-08-01), Ballhaus
patent: 4612468 (1986-09-01), Sturm et al.
patent: 4634908 (1987-01-01), Sturm
patent: 4823034 (1989-04-01), Wrobel
patent: 4922162 (1990-05-01), Shiraki et al.
patent: 5013957 (1991-05-01), Wrobel
patent: 5925948 (1999-07-01), Matsumoto
Watanabe et al.; “Axial Fan Motor”; U.S. Appl. No. 11/697,749, filed Apr. 9, 2007.

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