Brush device for miniature electric motor

Details Brush device for miniature electric motor Brush device for miniature electric motor

1976-08-27

1978-05-09

Duggan, Donovan F.

Electrical generator or motor structure

Dynamoelectric

Rotary

310246, 310248, H02K 1300

Patent

active

040889122

ABSTRACT:
A brush device for a miniature electric motor of a construction, in which a brush comprising a brush main body and a brush head part having a smaller size than the brush main body is forcibly inserted into an opening of a substantially corresponding size shape to the brush head part which is perforated in one part of a brush holder made of a leaf spring in a strip of narrow breadth, and an electrically conductive adhesive agent is applied to a fitted portion of the brush head part and the perforated opening, depending on necessity, stages or shelves formed at the boundary of the brush head part and the brush main body due to difference in size therebetween serving as stopper means which stops further insertion of the brush upon full, forced insertion of the brush head part into and through the perforated opening.

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