Refrigerator Cooling System

Abstract

The present invention refers to an improved cooling system for a refrigerator, preferably a domestic refrigerator, comprising a cell in which is located at least one compartment for the storage of food below freezing point, with said compartment being cooled using at least one wire tube evaporator arranged on at least one wall of said cell. It is provided for according to the invention that a wire tube evaporator ( 3, 4, 5 ) arranged inside said cell ( 1 ) is hydraulically connected to a tube evaporator ( 7 ), which extends in a manner similar to a coil ( 6 ) along the outer periphery of said cell ( 1 ).

1 . Improved refrigerator cooling system, preferably for a domestic refrigerator, comprising a cell ( 1 ) in which is located at least one compartment for the storage of food below freezing point, with said compartment being cooled using at least one wire tube evaporator ( 3 ,  4 , and  5 ), arranged along at least one wall of said cell ( 1 ), characterised in that each wire tube evaporator ( 3 ,  4 , and  5 ) arranged inside said cell ( 1 ), is hydraulically connected to a tube evaporator ( 7 ), which, in the manner similar to a coil ( 6 ), extends along the outer periphery of said cell ( 1 ). 
     
     
         2 . Improved refrigerator cooling system according to  claim 1 , characterised in that said tube evaporator ( 7 ) extends in a meander-like manner in a plane of at least one of the walls of said cell ( 1 ). 
     
     
         3 . Improved refrigerator cooling system according to  claim 1 , characterised in that said tube evaporator ( 7 ) is installed in the refrigerator before installation of insulation and before assembly of the refrigerator. 
     
     
         4 . Improved refrigerator cooling system according to  claim 1 , characterised in that said wire tube evaporator ( 3 ,  4 ,  5 ) is installed in the refrigerator when the latter is entirely assembled, and a free end of said wire tube evaporator ( 3 ,  4 ,  5 ) is hydraulically connected to a free end of said tube evaporator ( 7 ) projecting into the interior of the cell ( 1 ) of the refrigerator. 
     
     
         5 . Improved refrigerator cooling system according to  claim 1 , characterised in that a free end of said wire tube evaporator ( 3 ,  4 ,  5 ) is hydraulically connected to a free end of said tube evaporator ( 7 ) by means of a cold junction provided by plastic deformation. 
     
     
         6 . Improved refrigerator cooling system according to  claim 2 , characterised in that said tube evaporator ( 7 ) is installed in the refrigerator before installation of insulation and before assembly of the refrigerator. 
     
     
         7 . Improved refrigerator cooling system according to  claim 2 , characterised in that said wire tube evaporator ( 3 ,  4 ,  5 ) is installed in the refrigerator when the latter is entirely assembled, and a free end of said wire tube evaporator ( 3 ,  4 ,  5 ) is hydraulically connected to a free end of said tube evaporator ( 7 ) projecting into the interior of the cell ( 1 ) of the refrigerator. 
     
     
         8 . Improved refrigerator cooling system according to  claim 3 , characterised in that said wire tube evaporator ( 3 ,  4 ,  5 ) is installed in the refrigerator when the latter is entirely assembled, and a free end of said wire tube evaporator ( 3 ,  4 ,  5 ) is hydraulically connected to a free end of said tube evaporator ( 7 ) projecting into the interior of the cell ( 1 ) of the refrigerator. 
     
     
         9 . Improved refrigerator cooling system according to  claim 6 , characterised in that said wire tube evaporator ( 3 ,  4 ,  5 ) is installed in the refrigerator when the latter is entirely assembled, and a free end of said wire tube evaporator ( 3 ,  4 ,  5 ) is hydraulically connected to a free end of said tube evaporator ( 7 ) projecting into the interior of the cell ( 1 ) of the refrigerator. 
     
     
         10 . Improved refrigerator cooling system according to  claim 2 , characterised in that a free end of said wire tube evaporator ( 3 ,  4 ,  5 ) is hydraulically connected to a free end of said tube evaporator ( 7 ) by means of a cold junction provided by plastic deformation. 
     
     
         11 . Improved refrigerator cooling system according to  claim 3 , characterised in that a free end of said wire tube evaporator ( 3 ,  4 ,  5 ) is hydraulically connected to a free end of said tube evaporator ( 7 ) by means of a cold junction provided by plastic deformation. 
     
     
         12 . Improved refrigerator cooling system according to  claim 4 , characterised in that a free end of said wire tube evaporator ( 3 ,  4 ,  5 ) is hydraulically connected to a free end of said tube evaporator ( 7 ) by means of a cold junction provided by plastic deformation. 
     
     
         13 . Improved refrigerator cooling system according to  claim 6 , characterised in that a free end of said wire tube evaporator ( 3 ,  4 ,  5 ) is hydraulically connected to a free end of said tube evaporator ( 7 ) by means of a cold junction provided by plastic deformation. 
     
     
         14 . Improved refrigerator cooling system according to  claim 7 , characterised in that a free end of said wire tube evaporator ( 3 ,  4 ,  5 ) is hydraulically connected to a free end of said tube evaporator ( 7 ) by means of a cold junction provided by plastic deformation. 
     
     
         15 . Improved refrigerator cooling system according to  claim 8 , characterised in that a free end of said wire tube evaporator ( 3 ,  4 ,  5 ) is hydraulically connected to a free end of said tube evaporator ( 7 ) by means of a cold junction provided by plastic deformation. 
     
     
         16 . Improved refrigerator cooling system according to  claim 9 , characterised in that a free end of said wire tube evaporator ( 3 ,  4 ,  5 ) is hydraulically connected to a free end of said tube evaporator ( 7 ) by means of a cold junction provided by plastic deformation.