Commutator for a miniature electric motor

Details Commutator for a miniature electric motor Commutator for a miniature electric motor

1983-03-21

1984-09-04

Skudy, R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 42, H02K 1300

Patent

active

044699727

ABSTRACT:
The commutator comprises three conductive sectors 2 which are maintained against a cylindrical insulating core 4 by an insulating ring 3. Cut out from the rear end portion of each sector is a terminal 11 which defines two tabs 12 projecting axially at the rear end of the sector. Each pair of tabs straddles a parallelepipedic projection 5 of the core 4. The three sectors are maintained radially and axially in position by the ring 3 which comprises an annular portion 15 from which extend three claws 16 in the longitudinal direction, the claws being clipped behind a flange 6 which projects from the core. In this way, it is possible to mould the core and the ring 3 from a thermosetting material and to improve the maintenance of the sectors 2.

REFERENCES:
patent: 2322020 (1943-06-01), Hemphill
patent: 2639396 (1953-05-01), Harry
patent: 4188713 (1980-02-01), Kawano
patent: 4322650 (1982-03-01), Mabuchi

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