Positioning device for a sensor element of a miniature fan

Details Positioning device for a sensor element of a miniature fan Positioning device for a sensor element of a miniature fan

1997-10-21

2000-09-05

LaBalle, Clayton

Electrical generator or motor structure

Dynamoelectric

Rotary

310 67R, 310 42, 310164, H02K 1100, H02K 714, H02K 1502, H02K 2122

Patent

active

061147850

ABSTRACT:
A positioning device for a miniature fan includes a coil seat having an axle tube, an upper polar plate assembly, a lower polar plate assembly, and a winding mounted between the upper polar plate assembly and the lower polar plate assembly. A circuit board is mounted to the axle tube and includes a sensor element for activating rotor. The sensor element is located on a line extending from an end edge of the upper polar plate assembly along a direction parallel to a longitudinal axis of the axle tube.

REFERENCES:
patent: 4806808 (1989-02-01), Grecksch et al.
patent: 5093599 (1992-03-01), Horng
patent: 5245236 (1993-09-01), Horng
patent: 5510726 (1996-04-01), Brady
patent: 5539263 (1996-07-01), Lee
patent: 5831359 (1998-11-01), Jeske
patent: 5967763 (1999-10-01), Horng

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