Starter with overheat protection

Details Starter with overheat protection Starter with overheat protection

1996-07-30

1998-06-23

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 68R, 310 68C, 335121, 335126, H01H 6702, H02K 1300

Patent

active

057709017

ABSTRACT:
A starter motor has an armature, a commutator and brushes slidably supported by a brush holder, and a magnet switch controls motor operation. A switch supporting member supports the magnet switch and an energization control unit accommodating a bimetal switch having a contact therein. The energization control unit opens its inner contact to shut off the current carried to a magnet switch coil when the temperature of heat transferred via switch supporting member, i.e., the heat of the coil transferred via brushes and a switch yoke, reaches a predetermined temperature, thereby stopping motor operation.

REFERENCES:
patent: 3774407 (1973-11-01), Bright
patent: 4536669 (1985-08-01), Morishita
patent: 5528084 (1996-06-01), Shiga et al.

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