Heat exchanger and air conditioning system having same

Abstract

A heat exchanger and an air conditioning system having the same are disclosed. The heat exchanger includes a manifold extending in a first direction, the manifold having a first opening penetrating the pipe wall of the manifold; a tubular member arranged side by side with the manifold, the tubular member having a second opening penetrating the pipe wall of the tubular member; and a connecting pipe assembly, wherein the connecting pipe assembly includes a connecting pipe, the connecting pipe extending in a second direction that intersects with the first direction and being provided with a first end portion and a second end portion which are opposite each other; and a first flange portion and a second flange portion which extend radially outward from the first end portion and the second end portion, respectively. The surface of the first flange portion that faces the manifold is connected to the outer surface of the pipe wall of the manifold, and the surface of the second flange portion that faces the tubular member is connected to the outer surface of the pipe wall of the tubular member, so that the manifold and the tubular member are in fluid communication by means of the first opening, the connecting pipe, and the second opening. Therefore, the quality of the heat exchanger is improved, and the process difficulty is reduced.

What is claimed is: 
     
         1 . A heat exchanger, comprising:
 a manifold extending in a first direction, the manifold having a first opening penetrating the pipe wall of the manifold;   a tubular member arranged side by side with the manifold, the tubular member having a second opening penetrating the pipe wall of the tubular member; and   a connecting pipe assembly, wherein the connecting pipe assembly comprises a connecting pipe, the connecting pipe extending in a second direction that intersects with the first direction and being provided with a first end portion and a second end portion which are opposite each other; and a first flange portion and a second flange portion which extend radially outward from the first end portion and the second end portion, respectively,   wherein the surface of the first flange portion that faces the manifold is connected to the outer surface of the pipe wall of the manifold, and the surface of the second flange portion that faces the tubular member is connected to the outer surface of the pipe wall of the tubular member, so that the manifold and the tubular member are in fluid communication by means of the first opening, the connecting pipe, and the second opening.   
     
     
         2 . The heat exchanger as claimed in  claim 1 , wherein:
 the surface of the first flange portion that faces the manifold has the same shape as the corresponding part surrounding the first opening of the outer surface of the pipe wall of the manifold, and the surface of the second flange portion that faces the tubular member has the same shape as the corresponding part surrounding the second opening of the outer surface of the pipe wall of the tubular member.   
     
     
         3 . The heat exchanger as claimed in  claim 1 , wherein:
 an angle between the axis of the manifold and the axis of the tubular member is within the range of 0 degrees to 5 degrees.   
     
     
         4 . The heat exchanger as claimed in  claim 3 , wherein:
 an angle between the axis of the connecting pipe and the axis of the manifold is within the range of 85 degrees to 90 degrees.   
     
     
         5 . The heat exchanger as claimed in  claim 1 , further comprising:
 a plurality of heat exchange pipes connected to and in fluid communication with the manifold, and a plurality of fins arranged alternately with the plurality of heat exchange pipes.   
     
     
         6 . The heat exchanger as claimed in  claim 5 , wherein:
 the tubular member is a manifold, a distribution header, a collecting header, or a storage tank.   
     
     
         7 . The heat exchanger as claimed in  claim 1 , wherein:
 the ratio of each of the diameter of the first opening and the diameter of the second opening to the inner diameter of the connecting pipe ranges from 0.95 to 1.05.   
     
     
         8 . The heat exchanger as claimed in  claim 7 , wherein:
 the inner diameter of the connecting pipe remains the same over its entire length.   
     
     
         9 . The heat exchanger as claimed in  claim 1 , wherein:
 the axis of the manifold is parallel to the axis of the tubular member, and the axis of the connecting pipe is perpendicular to the axis of the manifold and the axis of the tubular member.   
     
     
         10 . The heat exchanger as claimed in  claim 1 , wherein:
 the outer surface of the pipe wall of the manifold and the outer surface of the pipe wall of the tubular member are cylindrical, and the surface of the first flange portion that faces the manifold and the surface of the second flange portion that faces the tubular member are partially cylindrical.   
     
     
         11 . The heat exchanger as claimed in  claim 1 , wherein:
 the connecting pipe assembly is formed from a pipe, wherein the inner side of the pipe is covered with a composite layer that functions as solder.   
     
     
         12 . The heat exchanger as claimed in  claim 1 , wherein:
 a thickness of the pipe wall of the connecting pipe is equal to a thickness of the first flange portion and/or the second flange portion, and the pipe wall of the connecting pipe has a uniform thickness.   
     
     
         13 . The heat exchanger as claimed in  claim 1 , wherein:
 the connecting pipe assembly is located on the outer side in a radial direction of the manifold and on the outer side in a radial direction of the tubular member.   
     
     
         14 . An air conditioning system, comprising:
 the heat exchanger according to  claim 1 .