Heat exchanger

Abstract

A heat exchanger of the present disclosure includes a plurality of front refrigerant tubes through which a refrigerant flows and that extends in a first direction, a plurality of rear refrigerant tubes through which a refrigerant flows and that extends in the first direction and is spaced apart from the plurality of front refrigerant tubes in a second direction crossing the first direction, fins that are disposed between the plurality of front refrigerant tubes and the plurality of rear refrigerant tubes to conduct heat and that extend in a third direction crossing the first direction and the second direction, a pair of front headers that is connected with both ends of the plurality of front refrigerant tubes and supplies a refrigerant, and a pair of rear headers that is connected with both ends of the plurality of rear refrigerant tubes and supplies a refrigerant, wherein the front headers and the rear headers extend in a direction parallel with the third direction.

What is claimed is: 
     
         1 . A heat exchanger comprising:
 a plurality of front refrigerant tubes to flow a refrigerant and that extend in a first direction;   a plurality of rear refrigerant tubes to flow the refrigerant and that extend in the first direction, the plurality of rear refrigerant tubes spaced apart from the plurality of front refrigerant tubes in a second direction that crosses the first direction;   fins that are disposed between the plurality of front refrigerant tubes and the plurality of rear refrigerant tubes to conduct heat, and that extend in a third direction that crosses the first direction and the second direction;   a pair of front headers that are connected with respective ends of the plurality of front refrigerant tubes to supply the refrigerant; and   a pair of rear headers that are connected with respective ends of the plurality of rear refrigerant tubes to supply the refrigerant,   wherein the front headers and the rear headers extend in the third direction.   
     
     
         2 . The heat exchanger of  claim 1 , wherein a width of the front refrigerant tubes in the third direction is wider than a width of the front refrigerant tubes in the second direction. 
     
     
         3 . The heat exchanger of  claim 1 , wherein a width of the rear refrigerant tubes in the third direction is wider than a width of the rear refrigerant tubes in the second direction. 
     
     
         4 . The heat exchanger of  claim 1 , wherein the front refrigerant tubes overlap with the rear refrigerant tubes when viewed in the second direction. 
     
     
         5 . The heat exchanger of  claim 1 , wherein the front refrigerant tubes and the rear refrigerant tubes include a plurality of microchannels therein to flow the refrigerant. 
     
     
         6 . The heat exchanger of  claim 1 , wherein the plurality of front refrigerant tubes are spaced apart from each other in the third direction. 
     
     
         7 . The heat exchanger of  claim 1 , wherein the plurality of front refrigerant tubes overlap with each other when viewed in the third direction. 
     
     
         8 . The heat exchanger of  claim 1 , wherein the front headers and the rear headers overlap with each other when viewed in the second direction. 
     
     
         9 . The heat exchanger of  claim 1 , wherein a flow direction of air is in the third direction. 
     
     
         10 . The heat exchanger of  claim 6 , wherein a pitch of the plurality of front refrigerant tubes is wider than a width of the front refrigerant tubes in the third direction. 
     
     
         11 . The heat exchanger of  claim 1 , wherein an area of the fins when viewed in the first direction is larger than an area of the fins when viewed in the third direction. 
     
     
         12 . The heat exchanger of  claim 1 , wherein the fins are in contact with one surface of the plurality of front refrigerant tubes and one surface of the plurality of rear refrigerant tubes. 
     
     
         13 . The heat exchanger of  claim 12 , wherein the fins are in contact with a surface of the plurality of front refrigerant tubes in the third direction that is wider than a surface of the plurality of front refrigerant tubes in the second direction, and are in contact with a surface of the plurality of rear refrigerant tubes in the third direction that is wider than a surface of the plurality of front refrigerant tubes in the second direction. 
     
     
         14 . The heat exchanger of  claim 1 , wherein a flow direction of air is in the third direction, and
 a density of the fins is decreased toward an inflow side of the air.   
     
     
         15 . A heat exchanger comprising:
 a plurality of refrigerant tubes to flow a refrigerant and that extend in a left-right direction;   fins that are connected with the plurality of refrigerant tubes to conduct heat; and   a pair of headers that are connected with respective ends of the plurality of refrigerant tubes to supply the refrigerant,   wherein a width of the refrigerant tubes in an up-down direction is wider than a width of the refrigerant tubes in a front-rear direction.   
     
     
         16 . The heat exchanger of  claim 15 , further comprising:
 an air intake port that is disposed lower than the fins and through which air is suctioned; and   an air discharge port that is disposed higher than the fins and through which suctioned air is discharged.   
     
     
         17 . The heat exchanger of  claim 16 , wherein a density of the fins is decreased toward the air intake port. 
     
     
         18 . The heat exchanger of  claim 16 , wherein the fins are divided into a lower region and an upper region disposed higher than the lower region, and
 a density of the fins at the lower region is lower than the density of the fins at the upper region.   
     
     
         19 . The heat exchanger of  claim 18 , wherein the fins are divided into a left region, a right region, and a central region between the left region and the right region, and the density of the fins at the central region is lower than the density of the fins at the left region and the density of the fins at the right region. 
     
     
         20 . A heat exchanger comprising:
 a plurality of front refrigerant tubes to flow a refrigerant and that extend in a first direction;   a plurality of rear refrigerant tubes to flow the refrigerant and that extend in the first direction, the plurality of rear refrigerant tubes spaced apart from the plurality of front refrigerant tubes in a second direction that crosses the first direction;   fins that are disposed between the plurality of front refrigerant tubes and the plurality of rear refrigerant tubes to conduct heat;   a pair of front headers that are connected with respective ends of the plurality of front refrigerant tubes to supply the refrigerant; and   a pair of rear headers that are connected with respective ends of the plurality of rear refrigerant tubes to supply the refrigerant,   wherein the fins define surfaces crossing between the first direction and the second direction and define air flow paths to pass air in a third direction.