Brushless motor having an anisotropic driving magnet and an isot

Details Brushless motor having an anisotropic driving magnet and an isot Brushless motor having an anisotropic driving magnet and an isot

1995-08-18

1998-08-18

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 67R, 310 68R, 29596, 29598, H02K 2112

Patent

active

057962006

ABSTRACT:
In a brushless motor, its magnet unit is formed by laying on each other a first magnet made of a flexible bond magnet material which is anisotropic and a second magnet made of a flexible bond magnet material which is isotropic, and the second magnet is smaller in wall thickness than the first magnet, and is confronted with the stator and the magneto-electric conversion element.

REFERENCES:
patent: 3784945 (1974-01-01), Baermann
patent: 4302692 (1981-11-01), Matsumoto et al.
patent: 4570093 (1986-02-01), Morii et al.
patent: 4587450 (1986-05-01), Ozaki
patent: 4835505 (1989-05-01), Hattori et al.
patent: 4888506 (1989-12-01), Umehera et al.
patent: 4948999 (1990-08-01), Bertram et al.
patent: 5126317 (1992-06-01), Agarwala

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