Miniature motor with spark quenching connection between commutat

Details Miniature motor with spark quenching connection between commutat Miniature motor with spark quenching connection between commutat

1986-11-10

1988-03-29

Salce, Patrick R.

Electrical generator or motor structure

Dynamoelectric

Rotary

29597, 310 42, 310 71, 310 72, H02K 1310

Patent

active

047346078

ABSTRACT:
A miniature motor having a plurality of commutator segments with commutator terminals which are connected to rotor windings. The commutator terminals are disposed on an insulating cylinder which is fixedly fitted to a motor rotating shaft, and a spark-quenching resistor connects each of the commutator segments. This resistor is a disc-shaped electrically conductive rubber ring which is fitted to the insulating cylinder so that the end face of the disc-shaped ring comes in contact with the commutator segment and commutator terminals and is brought into intimate contact with the commutator terminals by heating.

REFERENCES:
patent: 1826443 (1931-10-01), Aufiero et al.
patent: 2470096 (1949-05-01), Eck
patent: 3487248 (1969-12-01), Kaneko et al.
patent: 3488538 (1970-01-01), Hayashi
patent: 3594598 (1971-07-01), Schaub
patent: 4086510 (1978-04-01), Watanabe

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