Cooling abnormality detection system for electronic equipment

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

1993-11-08

1994-08-02

Ford, John K.

Heat exchange

With alarm, indicator, signal, register, recorder, test or...

Remotely controlled inspection means

165 111, 16510433, 361699, 236 78B, 622592, F28D 1500, G01K 1700, H02B 100, H05K 720

Patent

active

053336763

ABSTRACT:
A cooling abnormality detection system for external electronic equipment includes a protection unit. The protection unit includes two temperature sensors arranged in each piece of external electrical equipment to be monitored, in order to measure the temperature of each. A temperature difference measuring means receives the measured temperature from each piece of equipment and outputs a sensor failure signal when the absolute value of difference between the temperatures measured by the two temperature sensors exceeds a first predetermined value. An abnormal temperature signal is output from the temperature difference measuring means when the two measured temperatures both exceed a second value. The sensor failure signal is transmitted to the electronic equipment, while generation of the abnormal temperature alarm interrupts the power supply to the electronic equipment.

REFERENCES:
patent: 4729424 (1988-03-01), Mizuno
patent: 4753289 (1988-06-01), Avrea
patent: 4928751 (1990-05-01), Fischer, Jr.
patent: 5086829 (1992-02-01), Asakawa
patent: 5174364 (1992-12-01), Mizuno
Mizuno et al., "Cooling Technology for the NEC SX Supercomputer" Proceedings of the International Symposium on Cooling Technology for Electronic Equipment, pp. 110-125, Mar. 17-21, 1987.
Gupta, O. R. and Hwang, U. P., "Protection Device for Fluid Cooled Electrical Apparatus", IBM Technical Disclosure vol. 24, No. 2, pp. 955-956, Jul. 1981.
Electro Impulse Co., Microwave Journal, "Self-Cooled High Power RF Load", vol. 19, No. 4, p. 36, Apr. 1976.

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