Tube-fin type heat exchange unit with high pressure resistance

Abstract

The present invention disclosed a tube-fin type heat exchange unit with high pressure resistance, wherein said heat exchange unit comprises a plurality of tubes, foam metal and a plurality of heat dissipation fins; said tubes and said heat dissipation fins are spaced arranged; said foam metal is located in the interspace between said tubes and the superface of said heat dissipation fins; and solder is disposed between said tubes and said foam metal, and between said foam metal and the superface of said heat dissipation fins to make a firm connection. The heat exchange unit of the present invention has good heat exchange performance, high pressure resistance and small volume, so it is suitable for volume production and could be widely applied in heat exchangers for vehicle, industry and civil use.

1 . A tube-fin type heat exchange unit with high pressure resistance, wherein said heat exchange unit comprises a plurality of tubes, foam metal and a plurality of heat dissipation fins; said tubes and said heat dissipation fins are spaced arranged; said foam metal is located in the interspace between said tubes and the superface of said heat dissipation fins; and solder is disposed between said tubes and said foam metal, and between said foam metal and the superface of said heat dissipation fins to make a firm connection. 
   
   
       2 . A tube-fin type heat exchange unit with high pressure resistance according to  claim 1 , wherein said tubes have ribs or fins inside. 
   
   
       3 . A tube-fin type heat exchange unit with high pressure resistance according to  claim 1 , wherein one side of said foam metal is flat and closely contacts with the superface of said heat dissipation fins, and the other side of said foam metal has a circular-arc shape and enwraps said tubes. 
   
   
       4 . A tube-fin type heat exchange unit with high pressure resistance according to  claim 1 , wherein said foam metal has an open-cell structure or a close-cell structure. 
   
   
       5 . A tube-fin type heat exchange unit with high pressure resistance according to  claim 1 , wherein said heat dissipation fins have a wavy shape. 
   
   
       6 . A tube-fin type heat exchange unit with high pressure resistance according to  claim 5 , wherein said heat dissipation fins of wavy shape are in the form of single wave or double wave. 
   
   
       7 . A tube-fin type heat exchange unit with high pressure resistance according to  claim 6 , wherein said foam metal is located in the interspace between said tubes and the wave crests of said heat dissipation fins; and said solder is disposed between said tubes and said foam metal, and between said foam metal and the wave crests of said heat dissipation fins. 
   
   
       8 . A tube-fin type heat exchange unit with high pressure resistance according to  claim 1 , wherein said heat dissipation fins have a rectangular shape.