US 5,343,613 A · Method of installing thermal protection for an electric motor stator

Abstract

Plastic deformation and nicking of the conductors (30) of the end turns (20) in the stator (10,12,14) of a dynamoelectric machine during the installation of a temperature sensor (26) is avoided by locating the temperature sensor (26) in a gap (22) between the coils defining adjacent end turns (20), thereby providing a machine capable of rapidly responding to excess heat even in a locked rotor situation before detectable levels of smoke, gas, and odors are generated.

Claims7

Dependent claims

A method of fabricating the stator of a dynamoelectric machine, comprising:

a) winding a dynamoelectric machine with a plurality of coils such that adjacent coils are separated by a small gap;
b) separating the coils of at least one pair of adjacent coils without plastically deforming the same;
c) inserting a sensor having a dimension slightly larger than said gap before the performance of step c) into the gap between the separated coils;
and
d) allowing the coils to resiliently return toward their original positions.

2 more elements

Dependencies are inferred from the claim text.

Method of installing thermal protection for an electric motor stator

Life of this patent

Method of installing thermal protection for an electric motor stator

Life of this patent

Abstract

Claims7