DEVICE FOR HEAT REMOVAL FROM ELECTRIC RADIO ELEMENTS Russian patent published in 2024 - IPC H05K7/20 H01L23/40 

FIELD: heat engineering.

SUBSTANCE: invention relates to heat engineering and can be used in radio electronic equipment (REE) to ensure normal thermal mode of REE operation. In device for heat removal from electric radio elements, containing heat sink with finning, rigidly fixed on it heat-conducting fixed contact, installed in fixed contact heat-conducting movable contact with formation of cylinder-piston pair, heat-conducting fixed contact is made with central round through stepped hole, outer surface in form of truncated cone and longitudinal section, heat-conducting movable contact is made of cylindrical shape and is equipped with a limit stop, between heat-conducting fixed and movable contacts is made with a gap, wherein the heat-conducting fixed contact has the ability to deform in the radial direction to form a tight fit with the heat-conducting moving contact, finned heat sink is provided with a threaded hole coaxial with the central round through hole of the fixed contact, a crimping bushing is additionally introduced, fixing screws and an adjustment screw, the crimping bushing is made of metal with a central conical hole with the possibility of interacting with the outer surface of the fixed contact in the form of a truncated cone, finned heat sink, fixed contact and crimping bushing are connected to each other by means of fixing screws, adjusting screw is installed in the threaded hole of the finned heat sink with the possibility of transferring the axial force through the movable contact to the electric radio element installed on the board.

EFFECT: reduction of contact thermal resistance between heat-conducting contacts providing heat transfer from housing of heat-loaded electric radio element arranged on printed circuit board to external heat sink.

1 cl, 2 dwg