Modular cooling fixture for power transistors

Details Modular cooling fixture for power transistors Modular cooling fixture for power transistors

1990-01-30

1991-03-19

Thompson, Gregory D.

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

165 804, 357 82, 361382, H05K 720

Patent

active

050016016

ABSTRACT:
A modular cooling fixture for power transistors include a carrier plate. Transistors are mounted to the plate and insulated transistor leads pass through openings formed in the plate for connection to a printed circuit board. Spacers fasten the board to the carrier plate so that a removable assembly for the transistors is created. A chill plate is juxtaposed in contact with the carrier plate and recesses are formed in the chill plate so that the hat portions of the transistors project into the chill plate, thereby enabling thermal juxtaposed contact between the chill plate and the carrier plate. Passageways are formed through the chill plate to enable the circulation of cooling liquid therethrough. Heat is removed from the transistors by the heat-conductive material of the carrier plate and that heat is then transferred to the chill plate. In the event a transistor or printed circuit becomes faulty, the modular unit including the carrier plate, transistor and printed circuit board may be easily removed and replaced without interrupting the plumbing connections of the chill plate.

REFERENCES:
patent: 3268771 (1966-08-01), Dortort
patent: 3275921 (1966-09-01), Fellendorf et al.
patent: 4120019 (1978-10-01), Arii et al.
Antonetti et al., "Saturated Pad, Liquid Thermal Interface", IBM Technical Disclosure Bulletin, vol. 23, No. 2, 7/1980.

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