DC brushless motor with three teeth and two windings

Details DC brushless motor with three teeth and two windings DC brushless motor with three teeth and two windings

1988-01-04

1989-08-08

Salce, Patrick R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 68B, H02K 2116, G05B 1940

Patent

active

048556297

ABSTRACT:
A brushless DC motor includes a rotor having a rotor shaft, rotor core and two different magnetic poles disposed around the rotor core, a stator having a circular aperture for receiving the rotor therein and a plurality of magnetic pole teeth consisting of a first tooth, a second tooth and a third tooth disposed on a circumference of the aperture at almost regular intervals. The stator has a first yoke portion for connecting the first tooth and the second tooth, a second yoke portion for connecting the second tooth and the third tooth, a first winding wound on the first yoke portion, a second winding wound on the second yoke portion, and a control device for controlling electrical conduction states of the first winding and the second winding according to the rotational position of the rotor.

REFERENCES:
patent: 4361790 (1982-11-01), Laesser
patent: 4495450 (1985-01-01), Tokizaki et al.
patent: 4600864 (1986-07-01), Sato
patent: 4725752 (1988-02-01), Shiraki

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