Cooling abnormality detection system for electronic equipment

Details Cooling abnormality detection system for electronic equipment Cooling abnormality detection system for electronic equipment

H - Electricity

05

K

342/13.6

H05K 10/00 (2006.01) G01K 15/00 (2006.01) H05K 7/20 (2006.01)

Patent

CA 1338765

An excess heat abnormality detection and alarm system for electronic equipment includes a protection unit containing a timer for counting a predetermined period of time and for outputting a time output signal, a temperature measuring means for causing temperature sensors to measure the temperatures of the electronic components, first and second abnormal temperature discriminating means, and an abnormality alarm means. The first abnormal temperature discriminating means, operating for a predetermined period of time set in the timer means, identifies or discriminates one of the temperatures measured by the temperature measuring means as an abnormal temperature. The second abnormal temperature discriminating means, operating after the predetermined period of time set in the timer means, distinguishes between the two temperatures measured by the temperature measuring means. The abnormality alarm means receives an abnormality signal from the first and second abnormal temperature discriminating means, and generates a stop signal which controls power supplied to each of the electronic components.

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