Abnormal temperature detection device for regeneration resistor
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United States of America Patent
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-
Nov 17, 1992
Grant Date -
N/A
app pub date -
Sep 4, 1990
filing date -
Jan 24, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
There is provided an abnormal temperature detection device for a regeneration resistor for consuming the regenerative energy of an electric motor, which includes a heat conductive member (11) disposed in contact with the surface of a regeneration resistor (1), and a thermostat for detecting a rise in the temperature due to an abnormal heat generated in the regeneration resistor (1), via the thermostat (12). The thermostat (12) the regeneration resistor (1) are disposed in different spaces. The thermostat (12) is mounted on a portion at which the temperature is lowered, via the heat conductive member (11), and the temperature of that portion is detected instead of directly detecting the surface temperature of the regeneration resistor (1) which is set at high temperatures. Accordingly, a high temperature state of the regeneration resistor (1) can be detected by using a thermostat able to detect a low temperature.
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