Heat dispersion device for use in an electronic apparatus

Details Heat dispersion device for use in an electronic apparatus Heat dispersion device for use in an electronic apparatus

1973-11-20

1976-06-08

Myhre, Charles J.

Heat exchange

Thermosyphonic flue type

Heating or cooling means within distinct flue forming enclosure

165 80, 317100, 357 82, F24H 902

Patent

active

039616665

ABSTRACT:
A heat dispersion device for use in an apparatus having at least one heat-generating electronic element, such as, a power transistor, includes a thermally conductive heat dispersion member having a portion on which the heat-generating electronic element is mounted and a set of fins defining channels therebetween opening at the top and bottom of the set of fins, and a duct extending upwardly from the set of fins and communicating with the channels between the latter so that the generated heat is dispersed to air flowing upwardly in the channels and the heated air is conducted upwardly in the duct away from the heat dispersion member. For maximum effectiveness, the distance from the bottom of the set of fins to the top of the duct is made at least twice as large as the distance between the top and bottom of the set of fins. Further, the heat dispersion device may include a plurality of heat dispersion members, as aforesaid, assembled together with one or more ducts to provide a required heat dispersing capacity.

REFERENCES:
patent: 1728537 (1929-09-01), Geiger
patent: 1845573 (1932-02-01), Ackerly
patent: 2815472 (1957-12-01), Jackson
patent: 2965819 (1960-12-01), Rosenbaum
patent: 3253646 (1966-05-01), Koltuniak
patent: 3277346 (1966-10-01), McAdam
patent: 3314242 (1967-04-01), Lefferts
patent: 3364987 (1968-01-01), Bylund
patent: 3369597 (1968-02-01), Dronsuth
patent: 3384168 (1968-05-01), Richter
patent: 3518838 (1970-07-01), Newton
patent: 3727114 (1973-04-01), Oshima

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