Patent ID: 8985194
Filing Date: 2015-03-24
Classification: B23P,F28D,F28F,Y10T

Abstract:
1. A radiating fin, comprising: a main body having a first side and an opposite second side, and being provided with at least one through hole; the through hole penetrating the main body to extend between the first and the second side for a heat pipe to extend therethrough; and at least one extension being formed as a continuous cylindrical ring on at least one of the first and the second side of the main body to locate around the at least one through hole and axially project from the main body; wherein the extension has a crimped surface that includes undulating and repeating configurations, the configurations including alternate ridge portions and flute portions extending in a radial direction around the surface of the extension pressing against and thereby deforming an outer surface of the heat pipe in an undulating pattern; wherein the ridge portions and the flute portions interfere physically with the outer surface of the heat pipe and tightly bind to the outer surface of the heat pipe; and wherein an area of the surface of the extension touching the environmental air is increased.