Fin structure and heat exchanger having same

Abstract

A fin structure applied to a microchannel heat exchanger is provided. The fin structure is configured for allowing a flat tube to penetrate. The fin structure includes a plurality of inclined sections, wherein each of the plurality of inclined sections extends from one end of the fin structure to the other end thereof. The plurality of inclined sections are sequentially connected end to end to form a wave shape, and two opposite sides of each of the inclined sections are both provided with an inclined surface.

What is claimed is: 
     
         1 . A fin structure applied to a microchannel heat exchanger, wherein the fin structure is provided with a flat tube groove, the flat tube groove penetrates through a side of the fin structure to form an opening, the flat tube groove is configured for allowing a flat tube to penetrate; and
 wherein the fin structure is provided with a plurality of inclined sections, the plurality of inclined sections extend from one end of the fin structure to the other end of the fin structure, the plurality of inclined sections are sequentially connected to each other to form a wave shape, and two opposite side surfaces of each of the plurality of inclined sections are defined as two inclined surfaces inclined relative to the opening, respectively.   
     
     
         2 . The fin structure of  claim 1 , wherein an angle between each of the plurality of inclined surfaces and the opening is defined as α, and the angle α between each of the plurality of inclined surfaces and the opening ranges from 5° to 20°. 
     
     
         3 . The fin structure of  claim 1 , wherein angles between the plurality of inclined surfaces and the opening are the same. 
     
     
         4 . The fin structure of  claim 1 , wherein an angle between the inclined surface towards the flat tube groove and the opening is less than an angle between the inclined surface away from the flat tube groove and the opening. 
     
     
         5 . The fin structure of  claim 1 , wherein connection curvature between the plurality of inclined surfaces is continuous. 
     
     
         6 . The fin structure of  claim 1 , wherein the number of the plurality of inclined sections is in a range of three to five. 
     
     
         7 . The fin structure of  claim 6 , wherein the flat tube groove is disposed on two of the plurality of inclined sections. 
     
     
         8 . The fin structure of  claim 1 , wherein the fin structure is formed into a wave shape by a bending process. 
     
     
         9 . The fin structure of  claim 1 , wherein an edge of the flat tube groove is provided with a protrusion, and the protrusion extends towards a direction perpendicular to the opening. 
     
     
         10 . The fin structure of  claim 1 , wherein an inner wall of the opening is provided with a guiding portion, the guiding portion is connected to an inner wall of the flat tube groove, and a size of the guiding portion along a direction perpendicular to a direction from the opening to the flat tube groove decreases. 
     
     
         11 . A heat exchanger, comprising the fin structure of  claim 1 . 
     
     
         12 . The heat exchanger of  claim 11 , wherein an angle between each of the plurality of inclined surfaces and the opening is defined as α, and the angle α between each of the plurality of inclined surfaces and the opening ranges from 5° to 20°. 
     
     
         13 . The heat exchanger of  claim 11 , wherein angles between the plurality of inclined surfaces and the opening are the same. 
     
     
         14 . The heat exchanger of  claim 11 , wherein an angle between the inclined surface towards the flat tube groove and the opening is less than an angle between the inclined surface away from the flat tube groove and the opening. 
     
     
         15 . The heat exchanger of  claim 11 , wherein connection curvature between the plurality of inclined surfaces is continuous. 
     
     
         16 . The heat exchanger of  claim 11 , wherein the number of the plurality of inclined sections is in a range of three to five. 
     
     
         17 . The heat exchanger of  claim 16 , wherein the flat tube groove is disposed on two of the plurality of inclined sections. 
     
     
         18 . The heat exchanger of  claim 11 , wherein the fin structure is formed into a wave shape by a bending process. 
     
     
         19 . The heat exchanger of  claim 11 , wherein an edge of the flat tube groove is provided with a protrusion, and the protrusion extends towards a direction perpendicular to the opening. 
     
     
         20 . The heat exchanger of  claim 11 , wherein an inner wall of the opening is provided with a guiding portion, the guiding portion is connected to an inner wall of the flat tube groove, and a size of the guiding portion along a direction perpendicular to a direction from the opening to the flat tube groove decreases.