Patent ID: 7370692
Filing Date: 2008-05-13
Classification: F28F,H01L

Abstract:
1. A heat dissipating fin structure having different compactness, comprising a plurality of small heat dissipating fins, top and bottom end edges of each of which are bent to form heat conduction wing fins, clasp slots are formed on the heat conduction wing fins, and clasp hooks respectively extend in the same direction from the clasp slots, a bend in each of the clasp hooks forms an inverted fastener, which enable assembly of the corresponding front and back heat dissipating fins to form a set of the heat dissipating fins; the heat dissipating fin structure is characterized in that: the heat dissipating fins are stamp formed from single strips, and spacing of each of the heat dissipating fins is predetermined when assembling, thus, the conduction wing fins located on the heat dissipating fins assembled to form relatively large spacings are relatively wide, and the clasp slots and the clasp hooks of the conduction wing fins are relatively large, thereby forming relatively sparse heat conduction areas when assembling the heat dissipating fins; width of the conduction wing fins located on the heat dissipating fins assembled to form relatively small spacings is appropriately reduced, and the clasp slots and the clasp hooks of the conduction wing fins are correspondingly smaller, thereby forming relatively dense heat conduction areas when assembling the heat dissipating fins; the heat dissipating fins are completed from a single stamping, and are assembled to form heat dissipation areas of different spacing, wherein the heat dissipating fins are arranged in a block configuration when assembling comprising blocks of alternate wide and narrow spacings, whereby a first block consists of a set of the sparse heat conduction areas, a second block consists of a set of the dense heat conduction areas, a third block consists of a set of the sparse heat conduction areas, a fourth block consists of a set of the dense heat conduction areas, and so on, thereby forming the heat dissipating structure having a structural configuration of a set of the heat dissipating fins consisting of alternate wide and narrow spacings.