Thermal protector for hermetic electrically-driven compressors

Details Thermal protector for hermetic electrically-driven compressors Thermal protector for hermetic electrically-driven compressors

1995-11-22

1997-03-25

Williams, Howard L.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Compressor protective circuits

361 25, 361103, H02H 700

Patent

active

056150717

ABSTRACT:
A thermal protector for a hermetic electrically-driven compressor includes a thermal switch and a cluster socket. The protector is mounted inside a compressor housing on a terminal assembly mounted in a wall of the compressor housing. A casing of the thermal switch and a header plate hermetically closing an open end of the casing integrally form a flange on the peripheral edges when the header plate is secured to the casing. The thermal switch has two terminals one of which is provided with a receptacle into which one of terminal pins of the terminal assembly is fitted, and the other terminal is connected to a common lead wire of a compressor motor. The cluster socket has a plurality of terminal cavities for connecting windings of the motor to the terminal assembly. A body of the socket has a face having a pair of holding portions for holding the flange. Each holding portion has a hook-shaped portion at an end. The casing and the socket are integrally connected together such that a large part of the casing is exposed outside the socket body, when the flange is held by the holding portions and the receptacle is inserted to a position where it is opposed to the one terminal pin of the terminal assembly.

REFERENCES:
patent: 4748531 (1988-05-01), Ortiz
patent: 4791329 (1988-12-01), Ubukata et al.
patent: 5015985 (1991-05-01), Ubukata et al.
patent: 5196820 (1993-03-01), Ubukata et al.

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