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CN-121994047-A - Heat exchanger

CN121994047ACN 121994047 ACN121994047 ACN 121994047ACN-121994047-A

Abstract

The application discloses a heat exchanger, which comprises a first collecting pipe and at least two heat exchange pipes, wherein the first collecting pipe comprises a pipe body and convex parts, the at least two heat exchange pipes are stacked along the length direction of the pipe body, one end of the heat exchange pipe in the length direction is connected with the pipe body, the pipe body is provided with a first pipe cavity, the convex parts are at least partially positioned in the first pipe cavity, the convex parts are connected with the pipe body, the number of the convex parts is at least two, and the at least two convex parts are arranged at intervals. Compared with the prior art, the application is convenient for adjusting the structure of the convex parts according to the positions of the convex parts, so that the shape, the size and the like of each convex part can be adapted to the pressure of the working medium, and the convex parts can more uniformly distribute the working medium into each heat exchange tube.

Inventors

  • Request for anonymity
  • Request for anonymity

Assignees

  • 浙江三花绿能实业集团有限公司

Dates

Publication Date
20260508
Application Date
20241105

Claims (10)

  1. 1. A heat exchanger is characterized by comprising a first collecting pipe and at least two heat exchange pipes, wherein the first collecting pipe comprises a pipe body and at least two protruding parts, the at least two heat exchange pipes are stacked and arranged along the length direction of the pipe body, one end of each heat exchange pipe in the length direction is connected with the pipe body, the pipe body is provided with a first pipe cavity, the protruding parts are at least partially located in the first pipe cavity, the protruding parts are connected with the pipe body, the number of the protruding parts is at least two, and the at least two protruding parts are arranged at intervals.
  2. 2. The heat exchanger of claim 1, wherein the projections comprise a first projection and a second projection, each of the first projection and the second projection being connected to the tube body, the first header comprising an inlet portion, the inlet portion being connected to the tube body, the inlet portion, the first projection and the second projection being disposed along a length of the tube body.
  3. 3. The heat exchanger as recited in claim 2 wherein said first projection has a first end face which is an end face of said first projection toward one end of said heat exchanging tube, said tube body has an inner wall face which is a wall face of said tube body toward said first lumen side; The second bulge part is provided with a second end face, and the second end face is the end face of the second bulge part facing one end of the heat exchange tube; the distance between the first end face and the inner wall face is H1, and the distance between the second end face and the inner wall face is H2, wherein H1 is more than or equal to H2.
  4. 4. A heat exchanger according to claim 2 or 3, wherein the tube body portion includes a first portion and a second portion, both ends of the first portion being connected to the inlet portion and the first projection, respectively, along a length direction of the tube body portion, and both ends of the second portion being connected to the first projection and the second projection, respectively; And along the length direction of the pipe body, the length of the first part is L1, and the length of the second part is L2, wherein L1 is less than or equal to L2.
  5. 5. The heat exchanger of claim 4, wherein the heat exchange tubes comprise a first heat exchange tube and a second heat exchange tube, the first heat exchange tube and the second heat exchange tube being adjacent, the first heat exchange tube having a third end face, the third end face being the end face of the first heat exchange tube on the side facing away from the second heat exchange tube, the second heat exchange tube having a fourth end face, the fourth end face being the end face of the second heat exchange tube on the side facing away from the first heat exchange tube, the spacing between the third end face and the fourth end face being L3, wherein L3 +.l 2.
  6. 6. The heat exchanger as claimed in any one of claims 2 to 5, wherein the tube body includes a first portion, both ends of which are connected to the inlet portion and the first projection portion, respectively, along a length direction of the tube body; The first bulge is provided with a fifth end face, the fifth end face is an end face of the first bulge facing one end of the inlet part, the first part comprises a first wall face, the first wall face is a wall face of the first part facing one side of the first pipe cavity, and an included angle between the fifth end face and the first wall face is alpha, wherein alpha is more than or equal to 90 degrees.
  7. 7. The heat exchanger of claim 6, wherein the tube portion includes a second portion, and both ends of the second portion are connected to the first projection and the second projection, respectively, along a length direction of the tube portion; The second protruding portion is provided with a sixth end face, the sixth end face is an end face of the second protruding portion facing one end of the first protruding portion, the second portion comprises a second wall face, the second wall face is a wall face of the second portion facing one side of the first pipe cavity, and an included angle between the sixth end face and the second wall face is beta, wherein beta is larger than or equal to alpha.
  8. 8. The heat exchanger of any one of claims 2 to 7, wherein the first projection has a length L3 and the second projection has a length L4 along the length of the tube portion, wherein L3. Gtoreq.L 4.
  9. 9. The heat exchanger of claim 1, wherein the projection projects from the tube body toward the first lumen, the projection being of stamped configuration.
  10. 10. The heat exchanger of claim 1, wherein the projection comprises a flow guiding structure and a transition structure, both ends of the transition structure being connected to the flow guiding structure and the tube body, respectively.

Description

Heat exchanger Technical Field The application relates to the technical field of heat exchange, in particular to a heat exchanger for a vehicle air conditioner. Background The heat exchanger includes a first header and a plurality of heat exchange tubes, and the flow paths of the working medium flowing through the different heat exchange tubes are different, so that the flow rate of the working medium in the different heat exchange tubes may be uneven. In the related art, the pipe wall of the first collecting pipe protrudes towards the pipe cavity of the first collecting pipe to form a protruding part with a continuous arc surface integrally, and the protruding part can adjust the pressure of the working medium near the protruding part and can uniformly distribute the working medium into each heat exchange pipe near the protruding part. However, the pressure of the working medium flowing through the different positions is different, and the structure of the position of the protruding part may not be matched with the pressure of the working medium, so that the distribution uniformity of the protruding part to the working medium is poor. Disclosure of Invention The application aims to provide a heat exchanger with more uniform distribution of working medium. The embodiment of the application provides a heat exchanger, which comprises a first collecting pipe and at least two heat exchange pipes, wherein the first collecting pipe comprises a pipe body and at least two protruding parts, the at least two heat exchange pipes are stacked and arranged along the length direction of the pipe body, one end of each heat exchange pipe in the length direction is connected with the pipe body, the pipe body is provided with a first pipe cavity, the protruding parts are at least partially positioned in the first pipe cavity, the protruding parts are connected with the pipe body, the number of the protruding parts is at least two, and the at least two protruding parts are arranged at intervals. Compared with the prior art, the application is convenient for arranging the convex parts into a structure which is matched with the pressure of the working medium, so that the convex parts can distribute the working medium into the heat exchange tubes more uniformly. Drawings FIG. 1 is a schematic perspective view of a heat exchanger of the present application; FIG. 2 is a schematic perspective view of a first header of the heat exchanger of FIG. 1 according to the present application; FIG. 3 is a schematic cross-sectional view of one embodiment of the heat exchanger of FIG. 1 of the present application; fig. 4 is a schematic cross-sectional view of another embodiment of the heat exchanger of fig. 1 in accordance with the present application. Detailed Description For a better understanding of the technical solution of the present application, the following detailed description of the embodiments of the present application refers to the accompanying drawings. It should be understood that the described embodiments are merely some, but not all, embodiments of the application. Based on the technical scheme in the application, all other technical schemes obtained by a person of ordinary skill in the art without making creative work fall within the protection scope of the application. According to one embodiment of the heat exchanger of the present application, as shown in fig. 1 to 4, the heat exchanger comprises a first header 1 and a plurality of heat exchange tubes 2, each heat exchange tube 2 being identical in thickness direction and each heat exchange tube 2 being arranged at intervals in thickness direction of the heat exchange tube 2, the length direction of the first header 1 being substantially perpendicular to the length direction of the heat exchange tube 2, the first header 1 comprising a tube body 11, one end of each heat exchange tube 2 in length direction being connected to the tube body 11. The heat exchange tube 2 may be a flat tube. The tube body 11 has a first lumen 111, the heat exchange tubes 2 have heat exchange chambers 21, and the heat exchange chambers 21 of the heat exchange tubes 2 are each in communication with the first lumen 111. When the heat exchanger is in an operating state, the working medium flows from the first lumen 111 into each heat exchange chamber 21, or the working medium flows from each heat exchange chamber 21 into the first lumen 111. Due to the different relative positions of the different heat exchange tubes 2 and the first header 1, the flow paths of the working medium flowing through the different heat exchange tubes 2 are different, resulting in the possibility that the flow rate of the working medium in the different heat exchange tubes 2 is not uniform. The first collecting pipe 1 comprises a first protruding portion 12 and a second protruding portion 13, the first protruding portion 12 and the second protruding portion 13 are located in a first pipe cavity 111, the first protruding por