Miniature motor

Details Miniature motor Miniature motor

1987-04-13

1989-08-01

Skudy, R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 42, 310 43, 310 71, 310 89, 29597, H02K 1300

Patent

active

048535761

ABSTRACT:
A miniature motor having a motor case comprising a motor housing, fitted with a permanent magnet field and having an opening at one end thereof; an insulating brush base, made of a synthetic resin, fitted to the opening of the motor housing for holding brushgear; and a cover plate, made of a metallic member, covering the surface of the insulating brush base; the motor housing having a plurality of crimping pieces formed by notching the edge of the motor housing opening; the cover plate being fitted to the motor housing by engaging the cover plate with the motor housing opening, and bending and crimping the crimping pieces, characterized in that the cover plate has along the outer periphery thereof a plurality of recesses, which are concave toward the motor shaft, and the recesses are crimped by means of the crimping pieces so as to fixedly fit the cover plate to the motor housing.

REFERENCES:
patent: 3445692 (1969-05-01), Kato
patent: 4041339 (1977-08-01), Huber
patent: 4127785 (1978-11-01), Noguchi
patent: 4152614 (1979-05-01), Noguchi
patent: 4728835 (1988-03-01), Baines
patent: 4746829 (1988-05-01), Strobl

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