Heat transferring member and heat exchanger having the same

Abstract

A heat transferring member has a base wall including a base portion and angled portions. The angled portions extend from opposite sides of the base portion with respect to a flow direction of a fluid. The angled portions are provided by portions that are cut out from the base wall on opposite sides of the base portion and bent relative to the base wall.

1 . A heat transferring member for transferring heat with a fluid, comprising: 
 a base wall including a base portion;    a first angled portion; and    a second angled portion, wherein    the first angled portion and the second angled portion extend from opposite sides of the base portion and are angled relative to the base wall, and    the first angled portion, the second angle portion and the base portion provide a heat exchanging part.    
   
   
       2 . The heat transferring member according to  claim 1 , wherein 
 the heat exchanging part is one of a plurality of heat exchanging parts.    
   
   
       3 . The heat transferring member according to  claim 2 , wherein 
 the first angled portions and the second angled portions of the plurality of heat exchanging parts have substantially equal dimension with respect to a direction perpendicular to the base wall.    
   
   
       4 . The heat transferring member according to  claim 2 , wherein 
 the plurality of heat exchanging parts is arranged with respect to a flow direction of the fluid such that the first angled portions are located upstream of the base portions and the second angled portions are located downstream of the base portions with respect to the flow direction of the fluid, and    some of the plurality of heat exchanging parts are disposed upstream of a reference point of the base wall, and    the first angled portions of the some of the plurality of heat exchanging parts have dimensions greater than dimensions of the second angled portions thereof with respect to a direction perpendicular to the base wall.    
   
   
       5 . The heat transferring member according to  claim 2 , wherein 
 the plurality of heat exchanging parts is arranged with respect to a flow direction of the fluid,    the plurality of heat exchanging parts includes upstream heat exchanging parts and downstream heat exchanging parts, the upstream heat exchanging parts are disposed upstream of a reference point of the base wall and the downstream heat exchanging parts are disposed downstream of the reference point with respect to the flow direction of the fluid, and    the upstream heat exchanging parts have dimensions greater than dimensions of the downstream heat exchanging parts with respect to a direction perpendicular to the base wall.    
   
   
       6 . The heat transferring member according to  claim 1 , wherein 
 at least one of the first and second angled portions is right-angled relative to a surface of the base portion.    
   
   
       7 . The heat transferring member according to  claim 1 , wherein 
 each of the first and second angled portions is angled in a range between at least 40° and at most 140° relative to a surface of the base wall.    
   
   
       8 . The heat transferring member according to  claim 1 , wherein 
 the heat exchanging part is one of a plurality of heat exchanging parts, and    the plurality of heat exchanging parts are arranged in a row and has symmetric relationship with respect to a reference point of the base wall.    
   
   
       9 . The heat transferring member according to  claim 1 , wherein 
 the heat exchanging part defines a height in a direction perpendicular to the base wall and a width in a direction along the base portion and perpendicular to the first and second angled portions, and    a ratio of the height to the width is in a range between at least 0.9 and at most 1.25.    
   
   
       10 . The heat transferring member according to  claim 9 , wherein 
 the ratio is in a range between at least 0.95 and at most 1.2.    
   
   
       11 . The heat transferring member according to  claim 10 , wherein 
 the ratio is in a range between at least 1.0 and at most 1.15.    
   
   
       12 . The heat transferring member according to  claim 1 , wherein 
 the heat exchanging part is one of a plurality of heat exchanging parts arranged in a flow direction of the fluid at a predetermined pitch, and    each of the plurality of heat exchanging parts has a dimension, in a direction perpendicular to the base wall, in a range between at least 0.02 mm and at most 0.4 mm, and    the predetermined pitch is in a range between at least 0.04 mm and at most 0.75 mm.    
   
   
       13 . The heat transferring member according to  claim 12 , wherein 
 the dimension of the heat exchanging part is in a range between at least 0.1 mm and at most 0.35 mm, and    the predetermined pitch is in a range between at least 0.2 mm and at most 0.7 mm.    
   
   
       14 . The heat exchanging member according to  claim 13 , wherein 
 the dimension of the heat exchanging part is in a range between at least 0.2 mm and at most 0.3 mm, and    the predetermined pitch is in a range between at least 0.4 mm and at most 0.6 mm.    
   
   
       15 . A heat exchanger comprising: 
 a tube defining a passage for allowing a heat medium to flow therein; and    a fin disposed on an outer surface of the tube, wherein    the fin includes the heat transferring member according to  claim 1 .    
   
   
       16 . The heat exchanger according to  claim 15 , wherein 
 the fin has a thickness in a range between at least 0.01 mm and at most 0.1 mm.    
   
   
       17 . The heat exchanger according to  claim 15 , wherein the fin has a corrugated shape.  
   
   
       18 . The heat exchanger according to  claim 15 , wherein the fn includes the heat transferring member according to  claim 3 .  
   
   
       19 . The heat exchanger according to  claim 15 , wherein the heat medium is a refrigerant.