Patent ID: 6640883
Filing Date: 2003-11-04
Classification: H01L

Abstract:
A computer heat sink including a plurality of heat sink fins on the periphery of a base and with gaps between said fins, said base having a receiving space centrally located for fixing a fan which generates an air flow through the gaps among said heat sink fins to induce heat exchange between the air and the heat sink fins to effect heat transfer; wherein said heat sink is characterized in that each of a plurality of mutually neighboring pairs of heat sink fins have a difference in the distances of their tops from the center of said base, a peripheral top edge of each of said heat sink fins and a line orthogonal to a diametrical line of said base extending through said heat sinking fin have therebetween an included slant angle denoting horizontal slanting of said heat sink fin thereby increasing air flowing through said gaps among said heat sink fins by said included slant angles to increase the efficiency of heat sink; with the proviso that said each pair of heat sink fins are bent upwardly from said base to different angles of altitude to obtain said difference in the distances of said tops of said heat sinking fins from the center of said base.