Patent ID: 8205664
Filing Date: 2012-06-26
Classification: F28F,H01L

Abstract:
1. A combination heat sink comprising a plurality of radiation fins arranged in a stack, each said radiation fin comprising a plurality of retaining flanges symmetrically disposed at two opposite lateral sides thereof in such a manner that said radiation fins are fastened together in a stack by means of forcing said retaining flanges of one said radiation fin into engagement with said retaining flanges of another one of said radiation fins, each said retaining flange comprising a bottom neck perpendicularly extending from said respective radiation fin, two pairs of vertically spaced retaining fingers respectively extending from two opposite lateral sides of the topmost edge of said bottom neck in a parallel manner relative to said respective radiation fin for securing another one of said radiation fins, a top retaining notch defined between said two pairs of vertically spaced retaining fingers above said bottom neck for accommodating said bottom neck of another one of said radiation fins, and a retaining gap defined between each two vertically spaced retaining fingers for receiving another one of said radiation fins.