Refrigeration – Structural installation – With electrical component cooling
Patent
1998-05-27
1999-09-14
Doerrler, William
Refrigeration
Structural installation
With electrical component cooling
165185, 361713, E21B 3312, H05K 720
Patent
active
059504447
ABSTRACT:
Since, due to heat flowing from the outside through central conductors of cables or connectors into an electronic circuit that is operated in a state of being cooled to a low temperature, a temperature distribution or local temperature rising occurs in the electronic circuit, a desired characteristic cannot be obtained for the electronic circuit. There is disclosed an electronic apparatus comprising an electronic device accommodated in a vacuum heat insulation housing, provided with an electronic circuit which is cooled to a temperature between 4 K. and 150 K. to operate, and an input/output coaxial connector of which central conductor is hold by a dielectric having a heat conductivity of 10 W/m.multidot.K. or more at the temperature between 4 K. and 150 K.; and cooling means accommodated in the vacuum heat insulation housing, for cooling the electronic device to the temperature between 4 K. and 150 K via a cooling introduction member connected with the input/output coaxial connector, wherein the electronic device is mounted in a state of being separated from the cooling means. Since the problem of heat flow from the outside into the electronic circuit is eliminated, the electronic circuit is stably operated.
REFERENCES:
patent: 3902143 (1975-08-01), Fletcher et al.
patent: 3946141 (1976-03-01), Schmidt
patent: 5442131 (1995-08-01), Borgwarth
"A Receiver Front End for Wireless Base Stations"-Microwave Journal, Apr. 1996, vol. 39, No. 4, Published by Horizon House Publications .
Doerrler William
Kyocera Corporation
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