Electricity: conductors and insulators – With fluids or vacuum – With cooling or fluid feeding – circulating or distributing
Patent
1992-07-31
1994-05-03
Vo, Peter Dungba
Electricity: conductors and insulators
With fluids or vacuum
With cooling or fluid feeding, circulating or distributing
174 163, 174 17LF, 439487, H05K 720
Patent
active
053089200
ABSTRACT:
A radiating device for radiating heat of an electronic component to the atmosphere, includes a container body, a cap for tight-sealing the inner space of the container body, and a working fluid serving as a heat carrier kept in the container body. The bottom wall of the container body is flat and serves as a heat receiving portion. The working fluid repeats evaporation and condensation in the container body. In a corner where the inner surface of the bottom wall of the container body meets the inner surface of a vertical cylindrical wall, a loop groove is formed running all along the corner. A plurality of horizontal grooves intersecting the loop groove are formed on the inner surface of the bottom wall. A plurality of second grooves intersecting the loop grooves are formed on the inner surface of the cylindrical wall. The working fluid condensed at the heat radiating portion returns to the bottom wall through the vertical grooves and through the loop groove. The working fluid which has returned is dispersed entirely over the inner surface of the bottom wall along the horizontal grooves.
REFERENCES:
patent: 3361195 (1968-01-01), Meyerhoff et al.
patent: 3489207 (1970-01-01), Miller
patent: 3909678 (1975-09-01), Rifkin et al.
patent: 3952797 (1976-04-01), Voboril et al.
patent: 4011535 (1977-03-01), Kosky et al.
patent: 4322737 (1982-03-01), Sliwa, Jr.
patent: 5148351 (1992-09-01), Patel
Dungba Vo Peter
Fasse W. G.
Itoh Research & Development Laboratory Co., Ltd.
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