Heat exchanger and fabrication method thereof

Abstract

A heat exchanger includes: refrigerator pipes arranged at regular intervals; and cooling pins arranged between the refrigerator pipes and integrally formed with the refrigerator pipes. A fabrication process and cost can be reduced, a heat transfer performance can be enhanced, and the life span of the heat exchanger can be lengthened.

What is claimed is:  
     
         1 . A heat exchanger comprising: 
 refrigerator pipes arranged at regular intervals; and    cooling pins arranged between the refrigerator pipes and integrally formed with the refrigerator pipes.    
     
     
         2 . The heat exchanger of  claim 1 , wherein a support holder supporting the refrigerator pipes is disposed at both sides of the refrigerator pipes.  
     
     
         3 . The heat exchanger of  claim 1 , wherein the refrigerant pipe and the cooling fin are made of an aluminum material.  
     
     
         4 . The heat exchanger of  claim 1 , wherein, regarding the refrigerant pipes, two refrigerant pipes are arranged at a certain interval and repeatedly bent, respectively.  
     
     
         5 . The heat exchanger of  claim 1 , wherein the cooling fins are formed in a direction of a right angle to a longitudinal direction of the refrigerant pipe between the refrigerants and has a certain tilt angle.  
     
     
         6 . The heat exchanger of  claim 2 , wherein there is no cooling fin at a portion of the refrigerant pipe inserted into a slot of the support holder.  
     
     
         7 . A method for fabricating a heat exchanger comprising: 
 a first step of integrally forming refrigerant pipes and a flat type cooling fin forming part between the refrigerant pipes;    a second step of forming a plurality of cooling fins at the cooling fin forming part;    a third step of bending the cooling fin-formed refrigerant pipe several times at certain intervals; and    a fourth step of assembling a support holder at both sides of the refrigerant pipe.    
     
     
         8 . The method of  claim 7 , wherein, in the first step, two refrigerant pipes and the flat type cooling fin forming part between the two refrigerant pipes are integrally formed by using a molding unit.  
     
     
         9 . The method of  claim 7 , wherein, in the second step, the plural cooling fins are formed with a certain tile angle by passing the cooling fin forming part between louvering gears.  
     
     
         10 . The method of  claim 7  further comprising: 
 removing cooing fins formed at both sides of the refrigerant pipe so that the refrigerant pipe can be inserted into a slot of the support holder after the refrigerant pipe is bent.