Protection system for electromagnetic relay

A protection system for an electromagnetic relay mounted on a vehicle is configured to protect the electromagnetic relay from causing a coupling failure due to freezing of the electromagnetic relay. The system includes a temperature detector, a cooler, and a control unit. The temperature detector se...

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Bibliographic Details
Main Author Karasawa, Yukio
Format Patent
LanguageEnglish
Published 14.05.2024
Subjects
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
GENERATION
MEASURING
MEASURING QUANTITY OF HEAT
MEASURING TEMPERATURE
PHYSICS
TESTING
THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
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Summary:A protection system for an electromagnetic relay mounted on a vehicle is configured to protect the electromagnetic relay from causing a coupling failure due to freezing of the electromagnetic relay. The system includes a temperature detector, a cooler, and a control unit. The temperature detector sequentially measures an ambient temperature of a location in which the electromagnetic relay is disposed and outputs information on a change in the ambient temperature. The cooler cools an electric power line coupled to a fixing terminal of the electromagnetic relay. The control unit activates the cooler to cool the electric power line in a case where the control unit determines that the electromagnetic relay has a possibility of freezing on the basis of the information on the change in the ambient temperature from the temperature detector.
Bibliography:Application Number: US202217875039