Refrigerator and manufacturing method thereof

Abstract

A method of manufacturing a refrigerator comprises preparing an inner case including a top wall, opposite side walls, a rear wall and a bottom wall; preparing an outer case to be coupled to an outside of the inner case; preparing an ice making chamber case including a horizontal wall, a vertical wall and a case insulator interposed between a case insulator, the horizontal and vertical walls forming an ice making chamber together with at least a portion of the top wall, at least a portion of one of the side walls and at least a portion of the rear wall; coupling the ice making chamber case to an inside of the inner case; coupling the outer case to the outside of the inner case; and foaming a body insulator between the inner case and the outer case.

What is claimed is: 
     
         1 . A method of manufacturing a refrigerator comprising:
 preparing an inner case including a top wall, opposite side walls, a rear wall and a bottom wall;   preparing an outer case to be coupled to an outside of the inner case;   preparing an ice making chamber case including a horizontal wall, a vertical wall and a case insulator interposed between a case insulator, the horizontal and vertical walls forming an ice making chamber together with at least a portion of the top wall, at least a portion of one of the side walls and at least a portion of the rear wall;   coupling the ice making chamber case to an inside of the inner case;   coupling the outer case to the outside of the inner case; and   foaming a body insulator between the inner case and the outer case.   
     
     
         2 . The method according to  claim 1 , wherein the preparing the ice making chamber case comprises:
 preparing a first ice making chamber case;   preparing a second ice making chamber case to be coupled to an outside of the first ice making chamber;   preparing the case insulator to be interposed between the first ice making chamber case and the second ice making chamber case; and   coupling the first ice making chamber case, the case insulator, and the second ice making chamber case.   
     
     
         3 . The method according to  claim 1 , wherein the preparing the ice making chamber case comprises:
 preparing a first ice making chamber case;   preparing a second ice making chamber case to be coupled to an outside of the first ice making chamber;   coupling the first ice making chamber case and the second ice making chamber case; and   foaming the case insulator between the first ice making chamber case and the second ice making chamber case.   
     
     
         4 . A method of manufacturing a refrigerator comprising:
 preparing an inner case including a top wall, opposite side walls, a rear wall, a bottom wall, one or more engagement holes and one or more first fastening holes;   preparing an outer case to be coupled to an outside of the inner case;   preparing an ice making chamber case including a horizontal wall, a vertical wall, one or more engagement protrusions and one or more second fastening holes, the horizontal and vertical walls forming an ice making chamber together with at least a portion of the top wall, at least a portion of one of the side walls and at least a portion of the rear wall;   engaging the engagement protrusions in the engagement holes;   subsequently fastening fastening members into corresponding ones of the first and second fastening holes, respectively;   subsequently coupling the outer case to the outside of the inner case; and   subsequently foaming a body insulator between the inner case and the outer case.   
     
     
         5 . The method according to  claim 4 , wherein the fastening the fastening members into the corresponding first and second fastening holes comprises fastening the fastening members in an inward direction from the outside of the inner case. 
     
     
         6 . A method of manufacturing a refrigerator comprising:
 preparing an inner case including a top wall, opposite side walls, a rear wall, a bottom wall, one or more engagement holes and one or more first fastening holes;   preparing an outer case to be coupled to an outside of the inner case;   preparing an ice making chamber case including a horizontal wall, a vertical wall, one or more engagement protrusions and one or more second fastening holes, the horizontal and vertical walls forming an ice making chamber together with at least a portion of the top wall, at least a portion of one of the side walls and at least a portion of the rear wall;   engaging the engagement protrusions in the engagement holes;   subsequently coupling the outer case to the outside of the inner case;   subsequently foaming a body insulator between the inner case and the outer case; and   subsequently fastening fastening members into corresponding ones of the first and second fastening holes, respectively.   
     
     
         7 . The method according to  claim 6 , wherein the fastening the fastening members into the corresponding first and second fastening holes comprises fastening the fastening members in an outward direction from an inside of the inner case.