Header pipe for heat exchanger, and heat exchanger

Abstract

A header pipe (1) for a heat exchanger (100), and a heat exchanger (100). The header pipe (1) comprises: a first header pipe portion (11) extending in the axial direction of the header pipe (1) and having a first edge (111) and a second edge (112) that extend in the axial direction; and a second header pipe portion (12) extending in the axial direction of the header pipe (1) and having a first edge (121) and a second edge (122) that extend in the axial direction, wherein the first edge (111) of the first header pipe portion (11) is connected to the first edge (121) of the second header pipe portion (12), and the second edge (112) of the first header pipe portion (11) is connected to the second edge (122) of the second header pipe portion (12). The header pipe (1) of the present invention is easy to assemble, and improves the welding efficiency and welding quality.

What is claimed is: 
     
         1 . A header pipe for a heat exchanger, comprising:
 a first header pipe part extending in an axial direction of the header pipe, the first header pipe part having a first edge and a second edge extending in the axial direction; and   a second header pipe part extending in the axial direction of the header pipe, the second header pipe part having a first edge and a second edge extending in the axial direction,   wherein the first edge of the first header pipe part is connected to the first edge of the second header pipe part, and the second edge of the first header pipe part is connected to the second edge of the second header pipe part.   
     
     
         2 . The header pipe for a heat exchanger as claimed in  claim 1 , wherein:
 a through-hole for connecting a heat exchange tube is formed in each of the first header pipe part and the second header pipe part.   
     
     
         3 . The header pipe for a heat exchanger as claimed in  claim 1 , wherein:
 at least one pair of adjacent edges amongst the first edge of the first header pipe part and the first edge of the second header pipe part, and the second edge of the first header pipe part and the second edge of the second header pipe part is provided with a flange, with the adjacent edges being connected by means of the flange.   
     
     
         4 . The header pipe for a heat exchanger as claimed in  claim 3 , wherein:
 the flange protrudes towards the outside of the header pipe.   
     
     
         5 . The header pipe for a heat exchanger as claimed in  claim 1 , wherein:
 at least one pair of adjacent edges amongst the first edge of the first header pipe part and the first edge of the second header pipe part, and the second edge of the first header pipe part and the second edge of the second header pipe part is covered with a strip, the strip being connected to the at least one pair of adjacent edges.   
     
     
         6 . The header pipe for a heat exchanger as claimed in  claim 5 , further comprising:
 a partition plate extending in the axial direction, the partition plate dividing an internal cavity of the header pipe into multiple chambers, wherein the strip is connected directly to the partition plate.   
     
     
         7 . The header pipe for a heat exchanger as claimed in  claim 5 , further comprising:
 a partition plate extending in the axial direction, the partition plate dividing an internal cavity of the header pipe into multiple chambers, and an individual connecting plate, connected directly to the strip and the partition plate respectively.   
     
     
         8 . The header pipe for a heat exchanger as claimed in  claim 6 , wherein:
 the strip is disposed outside the header pipe, a gap is provided between the at least one pair of adjacent edges, and the partition plate is connected directly to the strip via the gap.   
     
     
         9 . The header pipe for a heat exchanger as claimed in  claim 7 , wherein:
 the strip is disposed outside the header pipe, a gap is provided between the at least one pair of adjacent edges, and the connecting plate is connected directly to the strip and the partition plate respectively via the gap.   
     
     
         10 . The header pipe for a heat exchanger as claimed in  claim 7 , wherein:
 the connecting plate is provided with a through-hole allowing a refrigerant to pass through.   
     
     
         11 . The header pipe for a heat exchanger as claimed in  claim 5 , wherein:
 the at least one pair of adjacent edges covered with the strip have a substantially planar shape, and the strip has a substantially planar shape.   
     
     
         12 . The header pipe for a heat exchanger as claimed in  claim 1 , further comprising:
 a partition plate extending in the axial direction, the partition plate dividing an internal cavity of the header pipe into multiple chambers;   the partition plate has a first part, and two second parts extending transversely in opposite directions from two longitudinally extending opposite edges of the first part, wherein longitudinal edges, opposite two edges of the first part respectively, of the two second parts are connected to an inner wall of the header pipe.   
     
     
         13 . The header pipe for a heat exchanger as claimed in  claim 12 , wherein:
 the two second parts are substantially perpendicular to the first part.   
     
     
         14 . The header pipe for a heat exchanger as claimed in  claim 12 , wherein:
 the first part passes through an axis of the header pipe.   
     
     
         15 . The header pipe for a heat exchanger as claimed in  claim 12 , wherein:
 when viewed in cross section, the partition plate is centrosymmetric relative to the center of the partition plate.   
     
     
         16 . The header pipe for a heat exchanger as claimed in  claim 12 , wherein:
 at least one pair of adjacent edges amongst the first edge of the first header pipe part and the first edge of the second header pipe part, and the second edge of the first header pipe part and the second edge of the second header pipe part is covered with a strip, the strip being connected to the at least one pair of adjacent edges,   and an individual connecting plate being connected directly to the strip and the first part of the partition plate respectively.   
     
     
         17 . The header pipe for a heat exchanger as claimed in  claim 16 , wherein:
 the connecting plate and the first part of the partition plate are substantially in the same plane.   
     
     
         18 . A heat exchanger, comprising:
 the header pipe for a heat exchanger as claimed in  claim 1 .   
     
     
         19 . A heat exchanger, comprising:
 two first header pipes;   a second header pipe, being the header pipe for a heat exchanger as claimed in  claim 1 , the second header pipe comprising a partition plate, the partition plate extending in the second header pipe substantially in a longitudinal direction of the second header pipe and being used to divide an internal cavity in the second header pipe into a first chamber and a second chamber;   a first heat exchange tube, connected between one of the two first header pipes and the second header pipe and being in fluid communication with said one of the two first header pipes and the second chamber of the second header pipe;   a second heat exchange tube, connected between said one of the two first header pipes and the second header pipe and being in fluid communication with said one of the two first header pipes and the first chamber of the second header pipe;   a third heat exchange tube, connected between the other one of the two first header pipes and the second header pipe and being in fluid communication with said other one of the two first header pipes and the first chamber of the second header pipe; and   a fourth heat exchange tube, connected between said other one of the two first header pipes and the second header pipe and being in fluid communication with said other one of the two first header pipes and the second chamber of the second header pipe.   
     
     
         20 . The heat exchanger as claimed in  claim 19 , wherein:
 the second header pipe is disposed between the two first header pipes, and the first heat exchange tube, the second heat exchange tube, the third heat exchange tube and the fourth heat exchange tube extend in substantially the same direction.   
     
     
         21 . The heat exchanger as claimed in  claim 19 , wherein:
 a refrigerant can flow from the first heat exchange tube to the first chamber of the second header pipe through said one of the two first header pipes and the second heat exchange tube, then flow from the first chamber of the second header pipe to the third heat exchange tube, and flow from the third heat exchange tube into the second chamber of the second header pipe through said other one of the two first header pipes and the fourth heat exchange tube.   
     
     
         22 . The heat exchanger as claimed in  claim 19 , wherein:
 the heat exchange capability of the first heat exchange tube is greater than the heat exchange capability of the second heat exchange tube, and the heat exchange capability of the third heat exchange tube is greater than the heat exchange capability of the fourth heat exchange tube.   
     
     
         23 . The heat exchanger as claimed in  claim 19 , wherein:
 the number of flow channels in the first heat exchange tube is greater than the number of flow channels in the second heat exchange tube, and the number of flow channels in the third heat exchange tube is greater than the number of flow channels in the fourth heat exchange tube; moreover, a flow cross-sectional area in the first heat exchange tube is greater than a flow cross-sectional area in the second heat exchange tube, and a flow cross-sectional area in the third heat exchange tube is greater than a flow cross-sectional area in the second heat exchange tube.   
     
     
         24 . The heat exchanger as claimed in  claim 19 , wherein:
 the partition plate has a first part, and two second parts extending transversely in opposite directions from two longitudinally extending opposite edges of the first part, wherein longitudinal edges, opposite two edges of the first part respectively, of the two second parts are connected to an inner wall of the second header pipe.   
     
     
         25 . The heat exchanger as claimed in  claim 24 , wherein:
 the width of the first part is less than a dimension of the internal cavity of the second header pipe in the width direction of the first part, such that in the width direction of the first part, the two second parts are respectively located between the first heat exchange tube and the second heat exchange tube, and between the third heat exchange tube and the fourth heat exchange tube.   
     
     
         26 . The heat exchanger as claimed in  claim 19 , wherein:
 the first to the fourth heat exchange tubes respectively extend in a first direction, and are arranged in a second direction substantially perpendicular to the first direction, with the first heat exchange tube and the fourth heat exchange tube being located on one side of the heat exchanger, and the second heat exchange tube and the third heat exchange tube being located on another side of the heat exchanger. Said one side and said other side are opposite each other in a third direction substantially perpendicular to the first direction and the second direction.