Self-tightening heat sink

Details Self-tightening heat sink Self-tightening heat sink

H - Electricity

01

L

356/113

H01L 23/34 (2006.01) H01L 23/40 (2006.01)

Patent

CA 2003543

32 SELF-TIGHTENING HEAT SINK ABSTRACT OF THE INVENTION: A heat sink element, preferably one formed with a relatively large surface area from which thermal energy can be transferred convectively and radiatively to an ambient atmosphere, with or without forced fluid flow, is held forcibly in contact with a heat transmitting surface of a heat source for thermal conduction of heat therefrom. A heat sink attachment element affixed to the heat sink element has flexibly attached castellated extensions formed with tapered end teeth contacting a correspondingly inclined surface of the heat source. The castellated extensions are each subjected to a continual externally applied force and the total resultant force thereof, holding the heat sink element to the heat source, thereby can be maintained or will increase as the assembly experiences thermal cycling and mechanical disturbances during use. The effectiveness of thermally conductive contact between the heat sink and heat source therefore does not deteriorate during prolonged use.

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