Assembled configuration of cooling fins and heat pipes

Abstract

An assembled configuration of cooling fins and heat pipes facilitates filling of a thermal interface material between contact surfaces of the cooling fins and the heat pipes and enhances stability of the cooling fins. The configuration is characterized in that each of the juxtaposed cooling fins is formed at an end thereof contacting the heat pipes with a bent portion having at least two sections so as to define an accommodating space for the thermal interface material and an extending section, wherein the accommodating space can be sufficiently filled with the thermal interface material and the extending section can be nestingly overlapped by an adjacent cooling fin, so as to effectively prevent the thermal interface material from leaking out and enhance stability of the assembled cooling fins.

1 . An assembled configuration of cooling fins and heat pipes, characterized in that a stair-shaped bent portion is formed at a periphery of each of through holes provided on each of the cooling fins where the heat pipes pass through said cooling fin, and the stair-shaped bent portion further comprises an extending section at a distal end thereof, wherein the extending section has an outer diameter approximately equal to an inner diameter of the stair-shaped bent portion; and when the cooling fins are to be assembled with the heat pipes, the cooling fins are successively penetrated by the heat pipes at the through holes and arranged in juxtaposition, so that a small part of the stair-shaped bent portion of one said cooling fin is nestingly placed over the extending section of an underlying said cooling fin, thereby defining a closed accommodating space between the stair-shaped bent portion and the extending section of the two adjacent cooling fins which is sufficiently filled by a thermal interface material, and completely covering gaps between the through holes of each said cooling fin and the heat pipes so as to effectively prevent the thermal interface material from leaking out and enhance stability of the cooling fins as they overlap one on top of another. 
     
     
         2 . The assembled configuration of cooling fins and heat pipes as claimed in  claim 1 , wherein the stair-shaped bent portion formed at the periphery of each of the through holes on each said cooling fin where the heat pipes pass through said cooling fin is formed as a stair-shaped bent portion having more than one steps.