Patent ID: 6557626
Filing Date: 2003-05-06
Classification: F21V,H01L,H05K

Abstract:
A heat sink assembly, comprising:a heat exchanging section including a thermally conductive sheet folded into alternating ridges and troughs defining spaced fins having first and second end edges, said folded sheet being formed into a generally cylindrical configuration defining an axis and whereby the troughs form an inner segmented cylinder, the ridges form an outer segmented cylinder generally concentric with the inner cylinder and the fins radiate generally outwardly from said axis; a thermally conductive core within said inner segmented cylinder defined by the troughs of the cylindrically folded sheet; and a retainer in engagement with the cylindrically folded sheet, said retainer including a plurality of depending fingers individually engageable with at least some of the ridges of the cylindrically folded sheet.