Method of forming bent heat dissipating unit and apparatus therefor

Abstract

In a method of forming bent heat dissipating unit, the following steps are included: putting a plurality of radiating fins on and around a straight heat pipe to form a heat dissipating unit; engaging the heat dissipating unit with a forming die assembly, so that a plurality of locating die units sequentially arranged on a carrier of the assembly are separately positioned in a space between two adjacent radiating fins; pressing the engaged heat dissipating unit and forming die assembly against a forming block; and driving a processing machine connected to the carrier of the forming die assembly to change the arrangement of the locating die units and thereby bend the heat dissipating unit to a shape corresponding to a profile of the forming block. An apparatus for forming the bent heat dissipating unit through the above steps is also provided.

1 . A method of forming bent heat dissipating unit, comprising the steps of: 
 (a) sequentially putting a plurality of radiating fins on and around a straight heat pipe to form a heat dissipating unit;    (b) separately positioning a plurality of locating die units of a forming die assembly into a space between two adjacent ones of said radiating fins on said heat pipe; wherein said locating die units are sequentially arranged side by side on a carrier of said forming die assembly, and any two adjacent ones of said locating die units are pivotally connected at an end to each other via a pivot;    (c) extending two ends of said carrier of said forming die assembly through a forming block to connect to a processing machine; and    (d) driving said processing machine to press said forming die assembly against said forming block, so that said heat dissipating unit located between said forming die assembly and said forming block is bent to a shape corresponding to a profile of said forming block.    
   
   
       2 . An apparatus for forming bent heat dissipating unit, comprising: 
 a heat dissipating unit formed from a straight heat pipe and a plurality of radiating fins put on and around said heat pipe;    a forming die assembly including a carrier, and a plurality of locating die units sequentially arranged side by side on said carrier; and any two adjacent ones of said locating die unit being pivotally connected to each other via a pivot;    a first forming block, against which said heat dissipating unit with said locating die units of said forming die assembly separately positioned between two adjacent ones of said radiating fins is pressed to form a shape corresponding to a profile of said first forming block; and    a processing machine being connected to two ends of said carrier of said forming die assembly for changing a manner in which said locating die units are arranged on said carrier.    
   
   
       3 . The apparatus for forming bent heat dissipating unit as claimed in  claim 2 , wherein said processing machine comprises an oil press.  
   
   
       4 . The apparatus for forming bent heat dissipating unit as claimed in  claim 2 , wherein said first forming block is provided with an oil press for independently driving said first forming block to bend said heat dissipating unit in the process of forming a bent heat dissipating unit.  
   
   
       5 . The apparatus for forming bent heat dissipating unit as claimed in  claim 2 , further comprising a second forming block for cooperating with said first forming block to bend said heat dissipating unit to an S-shape.  
   
   
       6 . The apparatus for forming bent heat dissipating unit as claimed in  claim 5 , wherein said second forming block is provided with an oil press for independently driving said second forming block to bend said heat dissipating unit in the process of forming a bent heat dissipating unit.