Method for manufacturing heat-dissipating module

Abstract

A method for manufacturing a heat-dissipating module includes following steps. A hollow aluminum tube is put on a corresponding heat pipe to form an aluminum-skinned heat pipe. Then, one or more aluminum-skinned heat pipes are disposed in a casting space of a die casting mold. Fins are disposed into the die casting mold. Molten aluminum materials are filled in the casting space of the die casting mold to form a heat-dissipating module. By using a die casting process, molten aluminum materials are used to cover at least one aluminum-skinned heat pipe and connect with the fins, thereby finishing the heat-dissipating module.

What is claimed is: 
     
         1 . A method for manufacturing a heat-dissipating module, including steps of:
 a) putting a hollow aluminum tube ( 110 ) on a corresponding heat pipe ( 111 ) to form an aluminum-skinned heat pipe ( 11 );   b) disposing at least one aluminum-skinned heat pipe ( 11 ) into a casting space ( 22 ) of a die casting mold ( 2 ), disposing a plurality of fins ( 12 ) in the casting space ( 22 ) of the die casting mold ( 2 ); and   c) filling aluminum materials into the casting space ( 22 ) of the die casting mold ( 2 ) to form a heat-dissipating module ( 1 ), wherein the heat-dissipating module ( 1 ) comprises an aluminum base ( 10 ), the at least one aluminum-skinned heat pipe ( 11 ), and the plurality of fins ( 12 ), and the aluminum base ( 10 ) covers the at least one aluminum-skinned heat pipe ( 11 ) and is combined with the fins ( 12 ).   
     
     
         2 . The method according to  claim 1 , wherein the aluminum-skinned heat pipe ( 11 ) in the step a) is made by stretching the hollow aluminum tube ( 110 ) to cover the heat pipe ( 111 ). 
     
     
         3 . The method according to  claim 2 , further including a step of sealing both ends ( 113 ) of the hollow aluminum tube ( 110 ) with two aluminum sealing heads ( 112 ). 
     
     
         4 . The method according to  claim 1 , wherein the die casting mold ( 2 ) in the step b) comprises a first mold part ( 20 ) and a second mold part ( 21 ), and the first mold part ( 20 ) and the second mold part ( 21 ) are brought into tight contact with each other to form the casting space ( 22 ) in which the aluminum base ( 10 ) is formed. 
     
     
         5 . The method according to  claim 4 , wherein the first mold part ( 20 ) is located below the second mold part ( 21 ). 
     
     
         6 . The method according to  claim 4 , wherein the first mold part ( 20 ) is located above the second mold part ( 21 ). 
     
     
         7 . The method according to  claim 4 , wherein the second mold part ( 21 ) is provided with a plurality of through troughs ( 210 ) in communication with the casting space ( 22 ), and the fins ( 12 ) are disposed through the through troughs ( 210 ) respectively.