Heat exchanger

Abstract

Provided is heat exchanger. The heat exchanger includes a plurality of first tubes disposed to form a first row, a plurality of second tubes disposed on a side of the plurality of first tubes to form a second row, and a fin in which the plurality of first tubes and the plurality of second tubes are inserted. The fin comprises a heat separation part for preventing heat conduction from occurring between the first tubes and the second tubes.

What is claimed is: 
     
         1 . A heat exchanger comprising:
 a plurality of first tubes disposed to form a first row;   a plurality of second tubes disposed on a side of the plurality of first tubes to form a second row; and   a fin into which the plurality of first tubes and the plurality of second tubes are inserted, and the fin comprises a heat separation part to prevent heat conduction from occurring between the plurality of first tubes and the plurality of second tubes.   
     
     
         2 . The heat exchanger according to  claim 1 , wherein the fin comprises:
 a first row fin into which the plurality of first tubes are inserted;   a second row fin into which the plurality of second tubes are inserted; and   a connection part connecting the first row fin with the second row fin.   
     
     
         3 . The heat exchanger according to  claim 2 , wherein the heat separation part comprises a cutoff part defined between the first row fin and the second row fin. 
     
     
         4 . The heat exchanger according to  claim 3 , wherein the cutoff part is provided in plurality and the plurality of cutoff parts are spaced apart from each other, wherein the connection part is disposed between two cutoff parts adjacent to each other. 
     
     
         5 . The heat exchanger according to  claim 4 , wherein the plurality of second tubes comprise a rear tube, and
 the plurality of first tubes comprise an upper tube and a lower tube which are disposed closest to the rear tube among the plurality of first tubes, wherein an angle (θ1) between a first extension line l that is a virtual extension line extending from a center of the rear tube toward the first row fin and perpendicular to a boundary of the first row fin, and a second extension line (l′) that is a virtual extension line connecting a center of the upper tube to the center of the rear tube is about 45° or less.   
     
     
         6 . The heat exchanger according to  claim 5 , wherein an angle (θ2) between the first extension line (l) and a third extension line (l″) that is an extension line connecting the center of the lower tube to the center of the rear tube is about 45° or less. 
     
     
         7 . The heat exchanger according to  claim 5 , wherein the first extension line (l) passes through the connection part. 
     
     
         8 . The heat exchanger according to  claim 5 , wherein the first extension line l equally divides a virtual center line (P) connecting the centers of the upper and lower tubes to each other. 
     
     
         9 . The heat exchanger according to  claim 5 , wherein the cutoff part between the rear tube and the upper tube meets two virtual exterior common tangents (t, t′) of the rear and upper tubes. 
     
     
         10 . The heat exchanger according to  claim 9 , wherein a length of the cutoff part between the rear tube and the upper tube is the sum of a length connecting two points at which the cutoff part meets the two virtual exterior common tangents and a length that corresponds to a ½ of a distance between the center of the upper tube and the center of the lower tube. 
     
     
         11 . The heat exchanger according to  claim 4 , wherein the plurality of first tubes forming the first row and the plurality of second tubes forming the second row are disposed in parallel with each other, and
 the plurality of cutoff parts are disposed in parallel with the plurality of first and second tubes.   
     
     
         12 . The heat exchanger according to  claim 1 , further comprising a blower fan for blowing air into the plurality of first and second tubes,
 wherein the plurality of first and second tubes are disposed in a zigzag shape with respect to a direction in which the air is introduced by the blower fan.   
     
     
         13 . The heat exchanger according to  claim 1 , wherein the plurality of first and second tubes are disposed spaced apart from each other at the same interval. 
     
     
         14 . A heat exchanger comprising:
 a plurality of first tubes forming a first row;   a plurality of second tubes disposed in parallel with the plurality of first tubes at a side of the plurality of first tubes, the plurality of second tubes forming a second row;   a first row fin having a plurality of first through holes coupled to the plurality of first tubes;   a second row fin having a plurality of second through holes coupled to the plurality of second tubes;   a connection part connecting the first row fin to the second row fin; and   a cutoff part disposed on a side of the connection part to space at least one portion of the first row fin from at least one portion of the second row fin.   
     
     
         15 . The heat exchanger according to  claim 14 , wherein the cutoff part is provided in plurality, and
 the connection part is disposed between the plurality of cutoff parts.   
     
     
         16 . The heat exchanger according to  claim 14 , wherein the plurality of first tubes and the plurality of second tubes are spaced apart from each other at the same interval. 
     
     
         17 . The heat exchanger according to  claim 14 , wherein a virtual first extension line (l) passing through a center of one tube of the plurality of second tubes in a horizontal direction equally divides a distance between centers of adjacent two tubes of the plurality of first tubes. 
     
     
         18 . The heat exchanger according to  claim 17 , wherein the first extension line (l) passes through the connection part. 
     
     
         19 . The heat exchanger according to  claim 17 , wherein exterior common tangents (t, t′) which connect two points on an outer circumferential surface of the first tube to two points on an outer circumferential surface of the second tube meet the cutoff part. 
     
     
         20 . The heat exchanger according to  claim 19 , wherein a length of the cutoff part is the sum of a length connecting two points at which the cutoff part meets the two exterior common tangents and a length that corresponds to a ½ of a distance between the centers of adjacent two tubes of the plurality of first tubes.