Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1987-02-24
1988-03-29
Budd, Mark O.
Electrical generator or motor structure
Dynamoelectric
Rotary
361 25, 318473, 337372, 337380, H02K 1100
Patent
active
047346027
ABSTRACT:
A device for mounting a thermal overload protector to the motor of a hermetic refrigeration compressor. The overload protector is temperature responsive and is operative to protectively interrupt the current to the motor when the stator windings, rotor, or other heat source in the compressor overheats due to a compressor overload. The protector's mounting device is a plastic receptacle having a shield connected by an integral hinge. The hinge not only facilitates manufacturing the receptacle as a unitary part by an injection molding process, but also enables the shield to be opened for inserting the overload protector into the receptacle. The overload protector is held firmly in place by a U-shaped bracket integrally disposed inside the receptacle. A U-shaped groove runs along the inner edge of the bracket and is designed to slidingly engage protectors of various shapes. The receptacle includes an opening on one side of the protector opposite the heat retaining shield. The receptacle is mounted so that the opening exposes the overload protector to the heat source while the shield traps heated refrigerant around the overload protector and also helps minimize heat loss from the protector, thus improving its response to heat resulting from overload.
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Hauser Bret R.
Jensen Thomas E.
American Standard Inc.
Beres William J.
Budd Mark O.
Harter Robert J.
Polsley David L.
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