Heat exchanger

Abstract

A heat exchanger is provided. A heat exchanger includes at least two heat exchange assemblies and a connecting assembly disposed between the at least two heat exchange assemblies. Each heat exchange assembly includes a plurality of heat exchange tube units and a plurality of fin units. The plurality of fin units are separated from each other and disposed in parallel. Two ends of the heat exchange tube unit penetrate through the plurality of fin units along an axis of the heat exchange tube unit, respectively. The heat exchange tube units are distributed at intervals along a length direction of the fin unit, and adjacent two heat exchange tube units are connected and in communication with each other end to end.

What is claimed is: 
     
         1 . A heat exchanger, comprising
 at least two heat exchange assemblies, wherein each of the at least two heat exchange assemblies comprises a plurality of heat exchange tube units and a plurality of fin units, the plurality of fin units are separated from each other and disposed in parallel, two ends of each of the plurality of heat exchange tube units penetrate through the plurality of fin units along an axis of each of the plurality of heat exchange tube units, respectively, the plurality of heat exchange tube units are distributed at interval along a length direction of each of the plurality of fin units, and adjacent two of the plurality of heat exchange tube units are connected and in communication with each other end to end; and   a connecting assembly, wherein adjacent two of the at least two heat exchange assemblies are inclined relative to each other, and the connecting assembly is disposed between the at least two heat exchange assemblies to connect the at least two heat exchange assemblies.   
     
     
         2 . The heat exchanger of  claim 1 , wherein the connecting assembly comprises a first connecting component, a second connecting component, a third connecting component and a first adjusting component, the first adjusting component is arranged to be extendable and retractable along its length direction, the first connecting component and the second connecting component are rotatably connected to two sides of the third connecting component, respectively, the first adjusting component is disposed between the first connecting component and the second connecting component, and the at least two heat exchange assemblies are connected to the first connecting component and the second connecting component, respectively. 
     
     
         3 . The heat exchanger of  claim 1 , wherein the connecting assembly comprises a first connecting component, a second connecting component, a third connecting component, a second adjusting component and a third adjusting component, the second adjusting component is arranged to be extendable and retractable along its length direction, the third adjusting component is arranged to be extendable and retractable along its length direction, the first connecting component and the second connecting component are rotatably connected to two sides of the third connecting component, respectively, the second adjusting component is disposed between the first connecting component and the third connecting component, the third adjusting component is disposed between the second connecting component and the third connecting component, and the at least two heat exchange assemblies are connected to the first connecting component and the second connecting component, respectively. 
     
     
         4 . The heat exchanger of  claim 1 , wherein the heat exchanger further comprises a liquid separator and a liquid collector, the liquid separator is provided with at least two inlet pipes, the at least two liquid inlet pipes are connected to and in communication with the at least two heat exchange assemblies, respectively, and the liquid collector is provided with at least two outlet pipes, and the at least two outlet pipes are in communication with and connected to the at least two heat exchange assemblies, respectively. 
     
     
         5 . The heat exchanger of  claim 1 , further comprising a reinforcing component, wherein the reinforcing component is disposed on the connecting assembly, and two sides of the reinforcing component abut against the at least two heat exchange assemblies, respectively. 
     
     
         6 . The heat exchanger of  claim 5 , wherein a reinforcing component is provided with a reinforcing structure, and at least part of each of the plurality of fin units abuts against the reinforcing structure. 
     
     
         7 . The heat exchanger of  claim 6 , wherein the reinforcing structure comprises a convex portion protruding from a side surface of the reinforcing component, and the convex portion is capable of matching with each of the plurality of fin units; or the reinforcing structure comprises a snapping groove disposed on the side surface of the reinforcing component, and the snapping groove is capable of matching with a part of each of the plurality of fin units. 
     
     
         8 . The heat exchanger of  claim 5 , wherein the reinforcing structure comprises a notch disposed on a side of the reinforcing component and an extending portion protruding from the side of the reinforcing component, the notch is capable of being snapped with a part of each of the plurality of heat exchange tube units, and the extending portion is capable of abutting against a side surface of each of the plurality of fin units. 
     
     
         9 . The heat exchanger of  claim 1 , wherein each of the at least two heat exchange assemblies further comprises a bent pipe, each of the plurality of heat exchange tube units comprises a first heat exchange tube and a second heat exchange tube, each of the plurality of fin units comprises a first fin and a second fin, the first heat exchange tube penetrates through the first fin correspondingly, the second heat exchange tube penetrates through the second fin correspondingly, and the first heat exchange tube is connected to and in communication with the second heat exchange tube via the bent pipe. 
     
     
         10 . The heat exchanger of  claim 1 , wherein a dividing structure is provided inside each of the plurality of heat exchange tube units and the dividing structure extends along the axis of each of the plurality of heat exchange tube units, so as to form a plurality of medium flow channels which is coaxial with each of the plurality of heat exchange tube units. 
     
     
         11 . The heat exchanger of  claim 1 , wherein an inner circumferential surface of each of the plurality of heat exchange tube units is provided with a plurality of protrusions, and the plurality of protrusions extend along the axis of each of plurality of heat exchange tube units. 
     
     
         12 . The heat exchanger of  claim 1 , wherein each of the plurality of fin units is provided with a plurality of heat exchange structures, and the plurality of heat exchange structures are distributed at interval along the length direction of each of the plurality of fin units.