Heat exchanger for a refrigerator and method for producing a heat exchanger

Abstract

A heat exchanger for a refrigerating appliance includes a plate, a conduit tubing, which is placed in thermo-conductive contact with the plate and is provided for transporting a coolant, and a holding material layer that adheres to the plate and to the conduit tubing. The holding material layer is made of a bitumen composition. The heat exchanger can be produced by stacking the plate, the conduit tubing, and a sheet made of the bitumen composition, whereby the holding material layer is formed form the sheet by heating and pressing the stack.

1 . A heat exchanger for a refrigerator, comprising: 
 a base plate;    a pipeline for holding a refrigerant, said pipeline in heat-conducting contact with said base plate; and    a layer of holding material adhering to said base plate and to said pipeline, said layer of holding material being of a bitumen composition.    
     
     
         2 . The heat exchanger according to  claim 1 , wherein said pipeline has a flattened cross-section.  
     
     
         3 . The heat exchanger according to  claim 1 , wherein said pipeline has an ovular cross-section.  
     
     
         4 . The heat exchanger according to  claim 1 , further comprising a layer of adhesive bonding said layer of holding material to said base plate.  
     
     
         5 . The heat exchanger according to  claim 3 , wherein said layer of adhesive is a heat-activated adhesive.  
     
     
         6 . The heat exchanger according to  claim 1 , wherein said bitumen composition contains between approximately 50% and approximately 80% of filler.  
     
     
         7 . The heat exchanger according to  claim 6 , wherein said filler is powdered stone.  
     
     
         8 . The heat exchanger according to  claim 1 , wherein said layer of holding material has a side facing away from said base plate and a layer of lacquer on said side facing away from said base plate.  
     
     
         9 . The heat exchanger according to  claim 1 , wherein said layer of holding material has an average thickness of between approximately 0.5 mm and approximately 2 mm.  
     
     
         10 . The heat exchanger according to  claim 1 , wherein said layer of holding material has an average thickness of between approximately 1.0 mm and approximately 1.5 mm.  
     
     
         11 . In a refrigerator having a housing, a heat exchanger comprising: 
 a base plate disposed in the housing;    a pipeline for holding a refrigerant, said pipeline in heat-conducting contact with said base plate; and    a layer of holding material adhering to said base plate and to said pipeline, said layer of holding material being of a bitumen composition.    
     
     
         12 - 17 . (canceled)