Circuit card assembly conduction converter

Claim 1

An assembly for providing conductive cooling, said assembly including a circuit card which has been previously designed to be convectionally cooled, said circuit card being of the type having a first side upon which electronic components are mounted and a second side from which pins of said electronic components extend through corresponding openings in said circuit card and are soldered to solder pads on the second side of the circuit card, said assembly comprising: a thermal mounting plate of high thermal conductivity material, said thermal mounting plate having a raised peripheral flat rim conforming to the outside border of said circuit card, said peripheral rim defining a pocket of said thermal mounting plate; a layer of electrically nonconductive, thermally conductive elastomeric material filling said pocket of said thermal mounting plate up to said rim; fastener means coupling the outside border of the second side of said circuit card against the perimeter flat rim of said thermal mounting plate, said perimeter rim being of a height above the surface of said mounting plate such that said pins extend into said layer of elastomeric material but do not extend to the surface of said thermal mounting plate; and means coupling said mounting plate to a heat removal means.