Heat exchange promotion member and heat exchanger

Abstract

Provided is a heat exchange promotion member and a heat exchanger that can improve heat transfer performance while holding down an increase in pressure drag of a fluid that exchanges heat with the heat exchange promotion member. A heat dissipation fin 14 of the present invention is a heat exchange promotion member that exchanges heat with a flowing fluid. The heat dissipation fin 14 includes a planar part 12 which is a surface substantially parallel to the fluid flowing direction and a raised part 13 that protrudes from the planar part 12 toward the fluid. The raised part 13 has a portion slanted relative to the direction in which the fluid flows, and there are a plurality of the raised parts 13 formed spaced apart from one another in the fluid flowing direction.

1 - 9 . (canceled) 
     
     
         10 . A heat exchanger comprising:
 a plurality of heat dissipation fins that are arranged at constant intervals and exchange heat with a fluid; and   a heat transfer tube that is thermally coupled with the heat dissipation fins and allows a heat medium to flow thereinside, the heat medium transporting heat energy, wherein   the heat dissipation fins each include
 a planar part which is a flat surface substantially parallel to a direction in which the fluid flows and 
 a raised part that extends in a direction intersecting with the direction in which the heat medium flows and that protrudes from the planar part toward the fluid, 
   the raised part has a portion slanted relative to the direction in which the fluid flows, and   the heat dissipation fins each have a plurality of shapes formed at substantially constant intervals in the direction in which the fluid flows, each of the shapes being a combination of the planar part and the raised part.   
     
     
         11 . The heat exchanger according to  claim 10 , wherein
 the raised part alternately has a first raised portion slanted to one direction along a flow of the fluid and a second raised portion slanted to a different direction along the flow of the fluid, and   a portion where the first raised portion and the second raised portion are continuous with each other forms a substantially letter-V shape.   
     
     
         12 . The heat exchanger according to  claim 10 , wherein
 an angle at which the raised part is slanted from a direction orthogonal to a flow of the fluid is from at least 30° to not greater than 80°.   
     
     
         13 . The heat exchanger according to  claim 10 , wherein
 a width of the raised part is from at least 0.6 mm to not greater than 4.5 mm.   
     
     
         14 . The heat exchanger according to  claim 10 , wherein the raised part protrudes from the planar part by a length of from at least 0.2 mm to not greater than 1.5 mm. 
     
     
         15 . The heat exchanger according to  claim 10 , wherein
 a cross section of the raised part at a tip end portion side is a substantially semicircular shape.   
     
     
         16 . The heat exchanger according to  claim 10 , wherein
 there are at least four to not greater than sixteen pieces of the raised parts in a direction orthogonal to a flow of the heat medium.   
     
     
         17 . A heat exchanger comprising:
 a plurality of heat dissipation fins that are arranged at constant intervals and exchange heat with a fluid; and   a heat transfer tube that is thermally coupled with the heat dissipation fins and allows a heat medium to flow thereinside, the heat medium transporting heat energy, wherein   the heat dissipation fins each include
 a planar part which is a flat surface substantially parallel to a direction in which the fluid flows and 
 a raised part that extends in a direction intersecting with the direction in which the heat medium flows and that protrudes from the planar part toward the fluid, 
   the raised part has a portion slanted relative to the direction in which the fluid flows,   there are a plurality of the raised parts formed spaced apart from one another in the direction in which the fluid flows,   when the direction in which the fluid flows is a first direction and a direction orthogonal to the first direction is a second direction,   the heat transfer tube has a first heat transfer tube group and a second heat transfer tube group that are arranged in the first direction   the first heat transfer tube group has a plurality of the heat transfer tubes arranged in the second direction,   the second heat transfer tube group has a plurality of the heat transfer tubes arranged in the second direction,   a plurality of the raised parts are formed between the first heat transfer tube group and the second heat transfer tube group,   a plurality of the raised parts are formed between the heat transfer tubes included in the first heat transfer tube group, and   a plurality of the raised parts are formed between the heat transfer tubes included in the second heat transfer tube group.   
     
     
         18 . The heat exchanger according to  claim 17 , wherein
 the heat transfer tubes included in the first heat transfer tube group and the heat transfer tubes included in the second heat transfer tube group are arranged in a zigzag manner.