Temperature control in an electric motor

Details Temperature control in an electric motor Temperature control in an electric motor

1991-01-07

1992-08-18

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 72, 310239, H02K 1100, H02K 1300

Patent

active

051402050

ABSTRACT:
An electric motor incorporates a positive temperature coefficient resistor 18 between a supply terminal and a brush. The resistor can be inserted from outside the motor through an aperture 17 in an end cap 2. A body 19 of heat conducting material, also insertable from outside the end cap, can be provided and held against to resistor 18 to alter its effective thermal mass and so adjust its operating characteristics.

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