Brushless motor, brushless type fan motor and electric...

Details Brushless motor, brushless type fan motor and electric... Brushless motor, brushless type fan motor and electric...

2007-01-08

2009-11-17

Nguyen, Tran N (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S156320, C310S06700R, C417S420000, C417S423700

Reexamination Certificate

active

07619337

ABSTRACT:
In a fan motor, there are provided protruding portions provided integrally with a base member so as to face a magnet and protrude toward the magnet, and openings facing the magnet, in the base member made of magnetic material. As to the positional relation between the protruding portions and the openings, when the protruding portions are positioned corresponding to centers of the magnetic poles, the openings are positioned corresponding to boundaries between the magnetic poles. As to the positional relation between the protruding portions and the coils, when the protruding portions are positioned corresponding to centers of the magnetic poles, both ends of the coils are positioned corresponding to positions other than the boundaries between the magnetic poles.

REFERENCES:
patent: 4620139 (1986-10-01), Egami et al.
patent: 5528436 (1996-06-01), Peter
patent: 7456541 (2008-11-01), Horng et al.
patent: 2007/0090698 (2007-04-01), Yasuda
patent: 11-8951 (1999-01-01), None
patent: 2000156960 (2000-06-01), None

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