APPARATUS FOR REMOVING HEAT FROM HEAT-DISSIPATING RADIO COMPONENTS Russian patent published in 2014 - IPC H05K7/20 H01L23/36 

FIELD: radio engineering, communication.

SUBSTANCE: invention relates to electronic engineering and is intended to facilitate heat removal from heat-dissipating radio components and can be used in designing converters, high-power amplifiers, rectifiers and multipliers. Between a ceramic electric insulator, on one side of which radio components are soldered, and a heatsink situated on the other side of the electric insulator, a plate made of a copper-molybdenum composite pseudoalloy is placed, said plate being mounted on the heatsink by one screw. Temperature coefficients of linear expansion of the electric insulator and the copper-molybdenum composite pseudoalloy (MD) are identical. The plate made of MD alloy and the heatsink are connected by a screw at one point. As temperature changes, surfaces thereof, which are separated by a heat-conducting lubricant, slide on each other. Filling part of the apparatus, besides the heatsink, with an electroconductive compound ensures high-potential insulation. To increase the distance between current-conducting parts of the device which are at different potentials, the ceramic electric insulator is made such that its periphery protrudes relative to the edge of the plate made of MD alloy by a few millimetres, and the layout of the metal coating on two sides is situated at the same distance from the edge of the ceramic electric insulator.

EFFECT: designing a device which facilitates heat removal from heat-dissipating radio components with different temperature coefficients of linear expansion of materials of a flat heat-conducting ceramic electric insulator and a heatsink simultaneously with electrical insulation of the radio components from the heatsink.

3 cl, 3 dwg