Heat sink comprising a tube through which cooling medium flows

Details Heat sink comprising a tube through which cooling medium flows Heat sink comprising a tube through which cooling medium flows

F - Mech Eng,Light,Heat,Weapons

28

F

F28F 1/08 (2006.01) F28D 1/047 (2006.01) F28F 1/22 (2006.01)

Patent

CA 2640960

The invention relates to a heat sink comprising at least one tube (2) through which cooling medium flows and which is surrounded by a heat-conducting material (1), wherein the tube wall of the at least one tube (2) is corrugated in the direction of flow. The corrugated embodiment has the advantage that the transition from laminar to turbulent flow relative to a straight-walled tube is effected at a lower flow velocity and the heat transfer area is greater at the same tube length.

L'invention concerne un refroidisseur qui présente au moins un tube (2) traversé par un fluide de refroidissement et qui est entouré par un matériau (1) bon conducteur de la chaleur. La paroi du ou des tubes (2) est ondulée dans la direction d'écoulement. Les ondulations présentent les avantages que la transition entre un écoulement laminaire et un écoulement turbulent a lieu à une vitesse d'écoulement plus petite qu'avec un tube à paroi rectiligne et que la surface de transfert de chaleur est plus grande pour une même longueur de tube.

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