Miniature electric motor with rubber stator magnet

Details Miniature electric motor with rubber stator magnet Miniature electric motor with rubber stator magnet

1991-05-22

1993-04-20

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 40MM, 335303, H02K 117, H01F 302, H01F 702

Patent

active

052045714

ABSTRACT:
A miniature electric motor having a stator composed of a strip of rubber magnet having a varying width. The stator strip has; polarized regions of wide width, non-polarized regions of narrow width, and regions which bridge said polarized regions having a continuously varying width. The periphery of the polarized and non-polarized regions of the stator strip contains indents and protrusions to improve the cogging characteristics of the motor.

REFERENCES:
patent: 3131462 (1964-05-01), Owings et al.
patent: 3257586 (1966-06-01), Steingroever
patent: 3904902 (1975-09-01), Inariba
patent: 4052630 (1977-10-01), Inariba
patent: 4748361 (1988-05-01), Ohnishi et al.
patent: 5063367 (1991-11-01), Lee

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