Fin and Heat Exchanger Having Same

Abstract

A fin and a heat exchanger having same are provided. The fin includes a first connecting segment, the second connecting segment is used for being bent, and the second connecting segment has a first connecting end and a second connecting end opposite each other, and the first connecting end is arranged on the side of the second connecting end away from the third connecting segment; an extension direction from the first connecting end to the second connecting end is a length direction of the second connecting segment; and along the length direction of the second connecting segment, the second connecting segment can be bent and deformed, so that the second connecting segment of a straight-strip structure forms an arcuate-strip structure after being bent.

1 . A fin, comprising:
 a first connecting segment, a second connecting segment and a third connecting segment, wherein the second connecting segment is disposed between the first connecting segment and the third connecting segment, the second connecting segment is configured to being bent, and the second connecting segment has a first connecting end and a second connecting end opposite each other, and the first connecting end is disposed on a side of the second connecting end away from the third connecting segment; an extension direction from the first connecting end to the second connecting end is a length direction of the second connecting segment; and along the length direction of the second connecting segment, the second connecting segment can be bent and deformed, so that the second connecting segment of a straight-strip structure forms an arcuate-strip structure after being bent.   
     
     
         2 . The fin as claimed in  claim 1 , wherein the second connecting segment has a corrugated structure; the second connecting segment comprises a plurality of connecting bodies, a plurality of wave crests and a plurality of wave troughs, and two ends of each of the plurality of connecting bodies are respectively connected with a wave crest and a wave trough; a direction from a valley position of the second connecting segment to a peak position of the second connecting segment is a height direction of the second connecting segment, and both the height direction of the second connecting segment and the length direction of the second connecting segment are perpendicular to a width direction of the second connecting segment; and
 one of the plurality of connecting bodies is provided with a first opening window, the first opening window is a strip-shaped opening, and the first opening window extends in the width direction of the second connecting segment.   
     
     
         3 . The fin as claimed in  claim 2 , wherein there is a plurality of first opening windows, and the plurality of first opening windows are disposed on one of the plurality of connecting bodies at intervals. 
     
     
         4 . The fin as claimed in  claim 3 , wherein
 the plurality of first opening windows are disposed at intervals along the length direction of the second connecting segment; or   the plurality of first opening windows are disposed at intervals along the width direction of the second connecting segment; or   the plurality of first opening windows form a plurality of first opening window groups, each of the plurality of first opening window groups comprises a plurality of first opening windows disposed at intervals along the length direction of the second connecting segment, and the plurality of first opening window groups are disposed at intervals along the width direction of the second connecting segment.   
     
     
         5 . The fin as claimed in  claim 3 , wherein one of the plurality of connecting bodies is further provided with a second opening window, the second opening window and the first opening window are disposed at intervals, the second opening window ia a strip-shaped opening, and the second opening window extends in the length direction of the second connecting segment. 
     
     
         6 . The fin as claimed in  claim 5 , wherein there is a plurality of second opening windows, and the plurality of second opening windows are disposed at intervals. 
     
     
         7 . The fin as claimed in  claim 6 , wherein the plurality of second opening windows are disposed at intervals along the width direction of the second connecting segment. 
     
     
         8 . The fin as claimed in  claim 6 , wherein the second opening windows are disposed at ends of the first opening windows. 
     
     
         9 . The fin as claimed in  claim 6 , wherein there is a plurality of first opening windows, the plurality of first opening windows form a plurality of first opening window groups, each of the plurality of first opening window groups comprises a plurality of first opening windows disposed at intervals along the length direction of the second connecting segment, and the plurality of first opening window groups are disposed at intervals along the width direction of the second connecting segment;
 at least one second opening window is disposed between two adjacent first opening window groups of the plurality of first opening window groups; or   there is a plurality of second opening windows, at least one second opening window of the plurality of second opening windows is disposed at one end of the plurality of first opening window groups, and at least one second opening window of the plurality of second opening windows is disposed at an other end of the plurality of first opening window groups.   
     
     
         10 . The fin as claimed in  claim 1 , wherein the first connecting segment, the second connecting segment and the third connecting segment are all of corrugated structures, the first connecting segment has a first wave pitch Fp 1 , the second connecting segment has a second wave pitch Fp 2 , and the third connecting segment has a third wave pitch Fp 3 ;
 wherein Fp 2 >Fp 1  and Fp 2 >Fp 3 .   
     
     
         11 . The fin as claimed in  claim 10 , wherein the length direction of the second connecting segment and the height direction of the second connecting segment are both perpendicular to a width direction of the second connecting segment, and along the width direction of the second connecting segment, a width of the second connecting segment is Fw 2 , a width of the first connecting segment is Fw 1 , and a width of the third connecting segment is Fw 3 ;
 wherein Fw 1 =Fw 2 =Fw 3 .   
     
     
         12 . The fin as claimed in  claim 10 , wherein a length of the second connecting segment is BL, and a width of the second connecting segment is Fw 2 ;
 wherein 1.5Fw 2 ≤BL≤5.5Fw 2 .   
     
     
         13 . The fin as claimed in  claim 10 , wherein a width of the second connecting segment is Fw 2 , and a bending radius of the second connecting segment is R bending ;
 wherein 2Fw 2 ≤R bending ≤7Fw 2 .   
     
     
         14 . The fin as claimed in  claim 1 , wherein
 the first connecting segment and the second connecting segment are disposed at an interval; or   the third connecting segment and the second connecting segment are disposed at an interval; or   the first connecting segment and the second connecting segment are disposed at an interval, and the third connecting segment and the second connecting segment are disposed at an interval.   
     
     
         15 . The fin as claimed in  claim 1 , wherein a height of the first connecting segment is Fh 1 , a height of the second connecting segment is Fh 2 , and a height of the third connecting segment is Fh 3 ;
 wherein Fh 2 ≤Min(Fh 1 , Fh 3 ).   
     
     
         16 . The fin as claimed in  claim 15 , wherein Fh 1 =Fh 3 . 
     
     
         17 . The fin as claimed in  claim 10 , wherein Fp 1 =Fp 3 . 
     
     
         18 . A heat exchanger, the heat exchanger comprising the fin as claimed in  claim 1 . 
     
     
         19 . The heat exchanger as claimed in  claim 18 , wherein the heat exchanger further comprises:
 an inlet header, disposed at one end of the fin, a radius of the inlet header being R 1 ; and   an outlet header, disposed at an other end of the fin, a radius of the outlet header being R 2 ;   wherein Fw 2 <R 1 <R 2 .   
     
     
         20 . The heat exchanger as claimed in  claim 18 , wherein the second connecting segment has a corrugated structure; the second connecting segment comprises a plurality of connecting bodies, a plurality of wave crests and a plurality of wave troughs, and two ends of each of the plurality of connecting bodies are respectively connected with a wave crest and a wave trough; a direction from a valley position of the second connecting segment to a peak position of the second connecting segment is a height direction of the second connecting segment, and both the height direction of the second connecting segment and the length direction of the second connecting segment are perpendicular to a width direction of the second connecting segment; and
 one of the plurality of connecting bodies is provided with a first opening window, the first opening window is a strip-shaped opening, and the first opening window extends in the width direction of the second connecting segment.