CN112432541A - Heat exchange assembly and manufacturing method thereof - Google Patents

Abstract

The heat exchange assembly provided by the application comprises a first collecting pipe and at least one first piece, wherein the first piece is fixedly connected with the first collecting pipe and comprises at least one rib, the first piece comprises a first surface, the first surface is attached to the first outer surface, the first piece is provided with at least one first groove, at least part of the first rib is located in the corresponding first groove, the first piece comprises a second surface and a third surface, and the second surface and the third surface are respectively located on two opposite sides of the first groove in the length direction; the first rib comprises a first protruding structure and a second protruding structure, the first protruding structure and the second protruding structure are respectively located on two opposite sides of the first groove in the length direction, the first protruding structure comprises a first end face, the second protruding structure comprises a second end face, the first end face is attached to the second face, the second end face is attached to the third face, and therefore the heat exchange assembly is firmly located before brazing.

Description

Heat exchange assembly and manufacturing method thereof

Technical Field

The application relates to the field of heat exchange, in particular to a heat exchange assembly and a manufacturing method thereof.

Background

The heat exchange assembly in the related art comprises a heat exchange core body and a support, wherein the heat exchange core body and the support are fixed through brazing. The heat exchange core and the bracket need to be pre-positioned before brazing. In the related art, the heat exchange core comprises a collecting pipe, the collecting pipe comprises a plurality of ribs, the support comprises a plurality of grooves arranged along the axial direction of the collecting pipe, the support is attached to the collecting pipe, and the grooves and the ribs are matched in a one-to-one correspondence mode to achieve pre-positioning of the support relative to the collecting pipe. However, the pre-positioning mode has the problem of infirm positioning, and the support is easy to fall off from the collecting pipe.

Disclosure of Invention

The purpose of this application is to provide a heat exchange assembly that is firmly positioned before brazing.

In one aspect, the present application provides a heat exchange assembly, which includes:

the first collecting pipe is provided with an inner cavity extending along the length direction of the first collecting pipe, the first collecting pipe comprises a first pipe wall positioned around the inner cavity, the first pipe wall comprises a first inner surface and a first outer surface, the first inner surface is closer to the inner cavity relative to the first outer surface, the first collecting pipe comprises at least one first rib, and the first rib is positioned on the first outer surface;

the second collecting pipe is provided with an inner cavity extending along the length direction of the second collecting pipe;

the heat exchange tubes comprise a first end part and a second end part which are positioned at two opposite ends of the heat exchange tubes in the length direction, the first end part is connected with the first collecting pipe, the second end part is connected with the second collecting pipe, and the through holes of the heat exchange tubes are communicated with the inner cavity of the first collecting pipe and the inner cavity of the second collecting pipe;

the first piece is fixedly connected with the first collecting pipe and comprises a first surface, the first surface is attached to the first outer surface, the first piece is provided with at least one first groove, the first convex edge is at least partially positioned in the corresponding first groove, the first piece comprises a second surface and a third surface, and the second surface and the third surface are respectively positioned on two opposite sides of the first groove in the length direction;

the first rib comprises a first protruding structure and a second protruding structure, the first protruding structure and the second protruding structure are respectively located on two opposite sides of the first groove in the length direction, the first protruding structure comprises a first end face, the second protruding structure comprises a second end face, the first end face is attached to the second face, and the second end face is attached to the third face.

The heat exchange assembly provided by the application, first protruding structure and second protruding structure are located respectively first recess length direction's opposite both sides, and the first terminal surface laminating of first protruding structure is in the second face of first piece, and the second terminal surface laminating of second protruding structure is in the third face of first piece for heat exchange assembly fixes a position firmly before brazing.

In another aspect, the present application provides a method for manufacturing a heat exchange assembly, which includes the following steps:

providing a first collecting pipe, a second collecting pipe, at least one first piece and a plurality of heat exchange pipes; the heat exchange tube comprises a first end part and a second end part which are positioned at two opposite ends of the length direction of the heat exchange tube, the first end part of the heat exchange tube is assembled with the first collecting tube, the second end part of the heat exchange tube is assembled with the second collecting tube, the first collecting tube comprises a first tube wall and at least one convex edge, the first tube wall comprises a first inner surface and a first outer surface, the first piece comprises at least one first groove and a first surface, the first convex edge is matched with the corresponding first groove, at least part of the first convex edge is positioned in the corresponding first groove, the first surface is attached to the first outer surface, the first piece comprises a second surface and a third surface, and the second surface and the third surface are respectively positioned at two opposite ends of the length direction of the first groove;

providing a riveting tool, riveting the riveting tool on one side of the first groove in the length direction to form a first convex structure, enabling the first convex structure to form a first end face attached to the second face, riveting the riveting tool on the other side of the first groove in the length direction to form the first convex structure, enabling part of the first convex structure to be parallel to the third face, riveting the riveting tool on the other side of the first groove in the length direction to form the first convex structure, and enabling part of the first convex structure to form a second convex structure by riveting the riveting tool, so that the second convex structure forms a second end face attached to the third face;

and integrally brazing the assembled first collecting pipe, the second collecting pipe and the plurality of heat exchange tubes with the first collecting pipe in a furnace so as to realize that the first end part is connected with the first collecting pipe, the second end part is connected with the second collecting pipe, and the first collecting pipe is fixedly connected with the first collecting pipe.

According to the manufacturing method of the heat exchange assembly, the riveting tool is used for riveting the first convex edge on one side in the length direction of the first groove, part of the first convex edge is riveted by the riveting tool to form a first protruding structure, the riveting tool is used for riveting the first convex edge on the other side in the length direction of the first groove, and part of the first convex edge is riveted by the riveting tool to form a second protruding structure; the first protruding structure is attached to the first end face of the second face, and the second protruding structure is attached to the second end face of the third face; therefore, the heat exchange assembly is firmly positioned before brazing.

Drawings

Fig. 1 is a schematic perspective view of a heat exchange assembly provided in an embodiment of the present application;

FIG. 2 is an exploded schematic view of the heat exchange assembly shown in FIG. 1;

FIG. 3 is a schematic perspective view of the first header of the present embodiment assembled with a first member;

FIG. 4 is a schematic side view of the first header shown in FIG. 3;

FIG. 5 is a perspective view of the first member shown in FIG. 3;

FIG. 6 is an exploded view of the first header and the first member of FIG. 3;

FIG. 7 is an enlarged schematic view of the portion circled A in FIG. 6;

FIG. 8 is a schematic top view of the primary header shown in FIG. 3 assembled with a primary member;

FIG. 9 is an enlarged schematic view of the portion encircled B in FIG. 8;

FIG. 10 is a cross-sectional view taken along line A-A of FIG. 8;

fig. 11 is a schematic perspective view of the assembly of the first header with a first member prior to being riveted to the first header by the riveting tool of the embodiment of the present application;

FIG. 12 is an enlarged schematic view of the portion circled C in FIG. 11;

FIG. 13 is a block flow diagram of a method of manufacturing a heat exchange assembly as provided herein;

in the drawings:

1. a first header; 11. a first tube wall; 13. a first inner surface; 14. a first outer surface;

2. a second header; 21. a second tube wall;

3. a first rib; l3, first lug longitudinal direction; w3, the first rib width direction; 31. a first bump structure; 311. a first end face; 32. a second bump structure; 321. a second end face; 33. a first side surface; l33, first side length direction; h33, first side height direction; 34. a second side surface; l34, second side length direction; h34, second side height direction; 35. a first top surface; 351. a third point; 352. a fourth point; 353. a middle section; 36. a third connection line;

4. a heat exchange pipe; 41. a first end portion; 42. a second end portion;

5. a first piece; 52. a first groove, L52, a first groove length direction; 53. a second face; 54. a third surface; 55. a first side; 551. a first point, 552, a second point, 56, a first line; 57. a second connection line; 58. a trench wall;

6. a second piece;

7. a fin; 8. a side plate;

100. and the heat exchange assembly.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

One embodiment of a heat exchange assembly 100 according to the present application, as shown in fig. 1 and 2, comprises: the heat exchanger comprises a first collecting pipe 1, a second collecting pipe 2, a plurality of heat exchange pipes 4, a plurality of fins 7, an edge plate 8, at least one first piece 5 and at least one second piece 6. The heat exchange assembly 100 of the present application may be applied to an air conditioning system.

The first collecting pipe 1 and the second collecting pipe 2 are arranged at intervals, the plurality of heat exchange tubes 4 are connected with the first collecting pipe 1 and the second collecting pipe 2, at least one first piece 5 is installed on the first collecting pipe 1, and at least one second piece 6 is installed on the second collecting pipe 2. The length direction L1 of the first header 1 and the length direction of the second header 2 may be parallel to each other, and the length directions of the plurality of heat exchange tubes 4 may be parallel to each other. The heat exchange tubes 4 are arranged at intervals, the fins 7 are clamped between the adjacent heat exchange tubes 4 and between the heat exchange tubes 4 and the side plates 8, the types of the fins 7 can be corrugated fins, shutter fins, rectangular fins, U-shaped fins and the like, and the arrangement of the fins 7 increases the heat exchange area between the heat exchange tubes 4 and the air, so that the heat exchange efficiency of the heat exchange assembly 100 is improved. In other alternative embodiments, due to reasons such as manufacturing or different designs in actual use, the length direction L1 of the first header 1 and the length direction of the second header 2 form an angle, but are not parallel to each other, and the positions of the first header 1 and the second header 2 are not limited thereto.

The first header 1 has an inner cavity extending along a length direction L1 of the first header 1 and a plurality of heat exchange tube holes (not shown in the figure) arranged along the length direction L1 of the first header 1, the first header 1 includes a first tube wall 11 located around the inner cavity of the first header 1, and the heat exchange tube holes penetrate through the first tube wall 11. The second collecting pipe 2 is provided with an inner cavity extending along the length direction of the second collecting pipe 2 and a plurality of heat exchange pipe holes arranged along the length direction of the second collecting pipe 2, the second collecting pipe 2 comprises a second pipe wall 21 around the inner cavity of the second collecting pipe 2, and the plurality of heat exchange pipe holes penetrate through the second pipe wall 21. The heat exchange tube 4 has a row of through holes (not shown) penetrating the heat exchange tube 4 in a length direction of the heat exchange tube 4, the heat exchange tube 4 has a length greater than a width thereof, and the heat exchange tube 4 has a width greater than a thickness thereof. The heat exchange tube 4 comprises a first end part 41 and a second end part 42 which are positioned at two opposite ends of the heat exchange tube 4 in the length direction, the first end part 41 of the heat exchange tube 4 is inserted into a heat exchange tube hole of the first collecting tube 1, and the first end part 41 is hermetically connected with the first collecting tube 1 at the heat exchange tube hole; the second end 42 of the heat exchange tube 4 is inserted into a heat exchange tube hole of the second collecting pipe 2, and the second end 42 is hermetically connected with the second collecting pipe 2 at the heat exchange tube hole. And a row of through holes of the heat exchange tube 4 are communicated with the inner cavity of the first collecting pipe 1 and the inner cavity of the second collecting pipe 2.

The first member 5 may be a fixing bracket for fixing the heat exchange assembly 100 to an external object, and the first member 5 may also be a pressure plate for communicating an external pipeline with the inner cavity of the first header 1. In the embodiment of the present application shown in fig. 1 and 2, two first members 5, which are fixed brackets, are mounted on the first header 1. The structure and principle of positioning the pressure plate and the first collecting pipe 1 are similar to the structure and principle of positioning the fixing support and the first collecting pipe 1, and the first part 5 is taken as the fixing support in the application as an example to illustrate the structure and principle of positioning the first part 5 and the first collecting pipe 1.

In the embodiment of the present application, as shown in fig. 3 and 4, the first header 1 includes a first pipe wall 11 located around the inner cavity of the first header 1, the first pipe wall 11 includes a first inner surface 13 and a first outer surface 14, and the first inner surface 13 is closer to the inner cavity of the first header 1 than the first outer surface 14. As shown in fig. 10, in a cross section perpendicular to the longitudinal direction L1 of the first header 1, the first outer surface 14 is circular and the first inner surface 13 is circular. In other alternative embodiments, the first outer surface 14 has a semicircular shape, an oval shape, a square shape, or other shapes, and the first inner surface 13 has a semicircular shape, an oval shape, a square shape, or other shapes, in a cross section perpendicular to the length direction L1 of the first header 1, which is not limited in this application.

As shown in fig. 3 and 4, the first header 1 comprises two first ribs 3, and the first ribs 3 are located on the first outer surface 14. As shown in fig. 5, 6 and 7, the first piece 5 is fixedly connected to the first header 1, the first piece 5 includes a first surface 55, the first surface 55 is attached to the first outer surface 14, the first piece 5 has two first grooves 52, the two first grooves 52 are in one-to-one correspondence with the two first ribs 3, the corresponding first ribs 3 are at least partially located in the corresponding first grooves 52, the first piece 5 includes a second surface 53 and a third surface 54, the second surface 53 and the third surface 54 are respectively located on two opposite sides of the length direction L52 of the first grooves 52, and the first grooves 52 penetrate through the second surface 53 and the third surface 54. As shown in fig. 6, 7 and 9, the first rib 3 includes a first protruding structure 31 and a second protruding structure 32, the first protruding structure 31 and the second protruding structure 32 are respectively located on two opposite sides of the length direction L52 of the first groove 52, the first protruding structure 31 includes a first end surface 311, the second protruding structure 32 includes a second end surface 321, the first end surface 311 is attached to the second surface 53, and the second end surface 321 is attached to the third surface 54. When the first ribs 3 are matched with the first grooves 52 in a one-to-one correspondence, the remaining degrees of freedom of the first member 5 relative to the first header 1 are constrained and fixed except for the axial degree of freedom and the radial degree of freedom. The first raised structures 31 and the second raised structures 32 are located on opposite sides of the first groove 52 in the length direction L52, that is, the first raised structures 31 and the second raised structures 32 are located on opposite sides of the first member 5 along the length direction L1 of the first header 1, so that the axial degree of freedom constraint of the first member 5 relative to the first header 1 is realized; the first end face 311 of the first protrusion structure 31 is attached to the second face 53 of the first member 5, the second end face 321 of the second protrusion structure 32 is attached to the third face 54 of the first member 5, and radial freedom degree constraint of the first member 5 relative to the first header 1 is realized through friction between the first end face 311 and the second face 53 and friction between the second end face 321 and the third face 54, so far, the first member 5 is completely positioned relative to the first header 1, and thus the heat exchange assembly 100 is firmly positioned before brazing. In alternative embodiments of the present application, the number of the first ribs 3 may be one or more, and the number of the first grooves 52 may be one or more. In the embodiment of the present application, the number of the first ribs 3 is two, and the number of the first grooves 52 is two for example; when the number of the first ribs 3 is two and the number of the first grooves 52 is two, the first ribs are preferably selected based on the double considerations of the material usage and the positioning stability of the heat exchange assembly 100, but the application is not limited thereto.

As shown in FIGS. 8 and 10, the first rib 3 includes a first side 33 and a second side 34, the first side 33 and the second side 34 are respectively located on two opposite sides of the first rib 3 in the width direction W3, and on a cross section perpendicular to the length direction L1 of the first header 1, the length of the first side 33 is a, the length of the second side 34 is b, and the wall thickness of the first tube wall 11 is c, wherein a is greater than or equal to 1.5c when b is greater than or equal to a, or b is greater than or equal to 1.5c when a is greater than or equal to b. When b is larger than or equal to a, a is larger than or equal to 1.5c, or when a is larger than or equal to b, b is larger than or equal to 1.5c, the arrangement can ensure the matching stability of the first convex edge 3 and the first groove 52 which are correspondingly matched, so that the heat exchange assembly 100 is positioned more firmly before brazing. In the embodiment of the present application, as shown in fig. 10, the first member 5 includes a groove wall 58 around the first groove 52, the first side 33 is attached to the groove wall 58 around the first groove 52, and the second side 34 is attached to the groove wall 58 around the first groove 52, which further enhances the stability of the corresponding first rib 3 and the first groove 52; of course, in alternative embodiments, there is a gap between the first side surface 33 and the groove wall 58 around the first groove 52, and/or a gap between the second side surface 34 and the groove wall 58 around the first groove 52, and the positional relationship between the first side surface 33 and the groove wall 58 around the first groove 52 is not limited in this application. In alternative embodiments, the first side 33 and the first outer surface 14 have smaller rounded corners and the second side 34 and the first outer surface 14 have smaller rounded corners for manufacturing and manufacturing reasons or other reasons, and it should be noted that, when describing the first side 33 and the second side 34, the first side 33 and the second side 34 may include smaller rounded corners, which is not limited in this application.

As shown in fig. 4, in the embodiment of the present application, the height direction H33 of the first side 33 and the height direction H34 of the second side 34 of each first rib 3 of the first header 1 may be parallel to each other, the height direction H33 of the first side 33 of each first rib 3 may be parallel to each other, and the height direction H34 of the second side 34 of each first rib 3 may be parallel to each other. Further, as shown in fig. 8, in the embodiment of the present application, the length direction L33 of the first side surface 33 and the length direction L34 of the second side surface 34 of each first rib 3 of the first header 1 may be parallel to each other, the length directions L33 of the first side surfaces 33 of each first rib 3 may be parallel to each other, and the length directions L34 of the second side surfaces 34 of each first rib 3 may be parallel to each other. With the arrangement, when the first piece 5 is installed, the first piece 5 can be assembled with the first rib 3 along the height direction H33 of the first side surface 33 and the height direction H34 of the second side surface 34, the first piece 5 can be assembled with the first rib 3 along the length direction L33 of the first side surface 33 and the length direction L34 of the second side surface 34, and an operator can assemble the first header 1 and the first piece 5 according to actual conditions, so that the first piece 5 and the first header 1 are convenient to assemble.

In an alternative embodiment, the height direction H33 of the first side surface 33 and the height direction H34 of the second side surface 34 of each first rib 3 of the first header 1 are parallel to each other, the height direction H33 of the first side surface 33 of each first rib 3 is parallel to each other, and the height direction H34 of the second side surface 34 of each first rib 3 is parallel to each other. This arrangement allows the first piece 5 to be assembled with the first ribs 3 along the height direction H33 of the first side 33 and the height direction H34 of the second side 34, thereby facilitating the assembly of the first piece 5 with the first header 1. In an alternative embodiment, the length direction L33 of the first side surface 33 of each first rib 3 of the first header 1 is parallel to the length direction L34 of the second side surface 34, the length directions L33 of the first side surfaces 33 of the first ribs 3 are parallel to each other, and the length directions L34 of the second side surfaces 34 of the first ribs 3 are parallel to each other. This arrangement allows the first piece 5 to be assembled with the first rib 3 along the length direction L33 of the first side 33 and the length direction L34 of the second side, so that the first piece 5 is easily assembled with the first header 1. In an alternative embodiment, when the length direction L33 of the first side surface 33 and the length direction L34 of the second side surface 34 of each first rib 3 of the first header 1 are parallel to each other, the length direction L33 of the first side surface 33 of each first rib 3 is parallel to each other, and the length direction L34 of the second side surface 34 of each first rib 3 is parallel to each other, the width of the end of the first rib 3 away from the first pipe wall 11 in the height direction of the first rib 3 is greater than the width of the end of the first rib 3 connected to the first pipe wall 11, for example, the first rib 3 is dovetail-shaped. This arrangement allows the first member 5 to be assembled with the first rib 3 along the length direction L33 of the first side 33 and the length direction L34 of the second side 34, and facilitates the constraint of the first member 5 in the radial degree of freedom with respect to the first header 1, so that the heat exchange assembly 100 is easy to assemble and is firmly positioned.

As shown in fig. 8 and 10, in a cross section perpendicular to the length direction L1 of the first header 1, the first outer surface 14 is circular, the first member 5 includes a first surface 55 attached to the first outer surface 14, the first surface 55 is circular, the first surface 55 includes a first point 551 and a second point 552 located at two circumferential ends of the first surface 55, a straight line connecting the first point 551 and the center of the first outer surface 14 is defined as a first connecting line 56, a straight line connecting the second point 552 and the center of the first outer surface 14 is defined as a second connecting line 57, the first connecting line 56 and the second connecting line 57 form a first included angle α, and the first included angle has a value range of α < 180 °. With the arrangement, on one hand, when the first piece 5 is assembled with the first header 1, the first piece 5 can be assembled with the first rib 3 along the height direction H33 of the first side surface 33 and the height direction H34 of the second side surface 34, so that the first piece 5 and the first header 1 can be assembled conveniently; on the other hand, it is advantageous to save material usage of the first member 5.

As shown in fig. 8 and 10, on the cross section perpendicular to the length direction L1 of the first header 1, the first line 56 and the second line 57 form a first included angle α, and the value range of the first included angle is 0 ° < α ≦ 120 °, which is beneficial to saving the material consumption of the first piece 5. Optionally, the first included angle α has a value of 120 °, so that the heat exchange assembly 100 has the effects of being firmly positioned and saving materials.

As shown in fig. 8 and 10, the first rib 3 includes a first top surface 35, one end of the first top surface 35 is connected to the first side surface 33, the other end of the first top surface 35 is connected to the second side surface 34, and in a cross section perpendicular to the length direction L1 of the first header 1, the first top surface 35 includes a third point 351, a fourth point 352 and a middle section 353, the third point 351 is connected to the first side surface 33, the fourth point 352 is connected to the second side surface 34, and a straight line connecting the third point 351 and the fourth point 352 is defined as a third connecting line 36. The middle section 353 protrudes from the third connecting line 36 in a direction away from the first outer surface 14, and can provide a guide for the first member 5 when the first member 5 is assembled with the first header 1, so that the assembly of the first member 5 with the first header 1 is more convenient.

As shown in fig. 8, the length direction L33 of the first side surface 33 of each first rib 3 of the first header 1 may be parallel to the length direction L1 of the first header 1, and the length direction L34 of the second side surface 34 of each first rib 3 may be parallel to the length direction L1 of the first header 1. This arrangement facilitates the simplification of the manufacture of the first header 1. In other alternative embodiments, the length direction L33 of the first side surface 33 of each first rib 3 of the first header 1 is not parallel to the length direction L1 of the first header 1, and the length direction L34 of the second side surface 34 of each first rib 3 is not parallel to the length direction L1 of the first header 1, and the position of the first rib 3 is not limited in this application.

In the embodiment of the present application, the first tube wall 11 of the first collecting pipe 1 and the first rib 3 are integrally formed, which is beneficial to saving the manufacturing cost of the first collecting pipe 1. The second collecting pipe 2 comprises a second pipe wall 21 and at least one second rib, and the second pipe wall 21 and the second rib of the second collecting pipe 2 are integrally formed, so that the manufacturing cost of the second collecting pipe 2 is saved. In other optional embodiments, the first rib 3 of the first header 1 and the first pipe wall 11 are fixed by welding, bonding, or the like, and the second rib of the second header 2 and the second pipe wall 21 are fixed by welding, bonding, or the like, which is not limited in this application. Specifically, in the embodiment of the present application, the first header 1 is an extruded profile, and the second header 2 is an extruded profile.

In this application, the second member 6 is mounted on the second header 2, the second member 6 may be a fixing bracket for fixing the heat exchange assembly 100 to an external object, and the second member 6 may also be a pressing plate for communicating an external pipeline with an inner cavity of the second header 2. In the embodiment of the present application shown in fig. 1 and 2, two second pieces 6, which are fixing brackets, and two second pieces 6, which are pressing plates, are mounted on the second header 2. The positioning structure and principle of the second member 6 and the second collecting pipe 2 are similar to those of the first member 5 and the first collecting pipe 1, and the detailed description of the present application is omitted.

As shown in fig. 13, a method of manufacturing a heat exchange assembly 100 according to an embodiment of the present application includes the steps of:

s1: providing a first collecting pipe 1, a second collecting pipe 2, at least one first piece 5, at least one second piece 6 and a plurality of heat exchange tubes 4, and assembling the first collecting pipe 1, the second collecting pipe 2, the at least one first piece 5, the at least one second piece 6 and the plurality of heat exchange tubes 4.

Specifically, the heat exchange tube 4 comprises a first end 41 and a second end 42 at two opposite ends of the heat exchange tube 4 in the length direction, the first end 41 of the heat exchange tube 4 is assembled with the first header 1, the second end 42 of the heat exchange tube 4 is assembled with the second header 2, the first header 1 comprises a first tube wall 11 and at least one rib 3, the first tube wall 11 comprises a first inner surface 13 and a first outer surface 14, the first piece 5 comprises at least one first groove 52 and a first surface 55, the first piece 5 is assembled with the first rib 3 along the height direction H33 of the first side surface 33 and the height direction H34 of the second side surface 34, the first rib 3 is matched with the corresponding first groove 52, so that the first rib 3 is at least partially positioned in the corresponding first groove 52, the first surface 55 is attached to the first outer surface 14, the first member 5 includes a second surface 53 and a third surface 54, and the second surface 53 and the third surface 54 are respectively located at opposite ends of the first groove 52 in the length direction L52.

S2: providing a riveting tool, positioning and fixing the first piece 5 and the first collecting pipe 1 by the riveting tool, and positioning and fixing the second piece 6 and the second collecting pipe 2 by the riveting tool.

Specifically, a riveting tool is used for riveting the first rib 3 on one side of the length direction L52 of the first groove 52, the riveting direction of the riveting tool is parallel to the second surface 53, a part of the first rib 3 is riveted by the riveting tool to form the first protruding structure 31, so that the first protruding structure 31 is formed to be attached to the first end surface 311 of the second surface 53, the riveting tool is used for riveting the first rib 3 on the other side of the length direction L52 of the first groove 52, the riveting direction of the riveting tool is parallel to the third surface 54, a part of the first rib 3 is riveted by the riveting tool to form the second protruding structure 32, and so that the second protruding structure 32 is formed to be attached to the second end surface 321 of the third surface 54.

S3: the first collecting pipe 1, the second collecting pipe 2, at least one first piece 5, at least one second piece 6 and a plurality of heat exchange pipes 4 are connected in a brazing mode.

Specifically, the assembled first header 1, second header 2, at least one first piece 5, at least one second piece 6 and the plurality of heat exchange tubes 4 are integrally brazed through a furnace, so that the first end portion 41 is connected with the first header 1, the second end portion 42 is connected with the second header 2, and the first surface 55 of the first piece 5 is attached to the first outer surface 14 of the first header 1.

In the manufacturing method of the heat exchange assembly 100 provided by the application, the riveting tool is used for riveting the first rib 3 on one side of the first groove 52 in the length direction L52, part of the first rib 3 is riveted by the riveting tool to form the first protruding structure 31, the riveting tool is used for riveting the first rib 3 on the other side of the first groove 52 in the length direction L52, and part of the first rib 3 is riveted by the riveting tool to form the second protruding structure 32, so that the first piece 5 is restrained and fixed relative to the axial freedom degree of the first collecting pipe 1; the first protruding structures 31 form first end faces 311 attached to the second faces 53, the second protruding structures 32 form second end faces 321 attached to the third faces 54, and the friction between the second end faces 321 and the third faces 54 realizes the constraint and fixation of the first member 5 relative to the radial degree of freedom of the first header 1 through the friction between the first end faces 311 and the second faces 53, so that the heat exchange assembly 100 is firmly positioned before brazing.

The first member 5 may be a fixing bracket for fixing the heat exchange assembly 100 to an external object, and the first member 5 may also be a pressure plate for communicating an external pipeline with the inner cavity of the first header 1. In the embodiment of the present application shown in fig. 1 and 2, two first members 5, which are fixed brackets, are mounted on the first header 1. The structure and principle of the positioning of the pressure plate and the first collecting pipe 1 are similar to the structure and principle of the positioning of the fixing support and the first collecting pipe 1, and the description of the application is omitted.

The second member 6 may be a fixing bracket for fixing the heat exchange assembly 100 to an external object, and the second member 6 may also be a pressure plate for communicating an external pipeline with the inner cavity of the second header 2. In the embodiment of the present application shown in fig. 1 and 2, two second pieces 6, which are fixing brackets, and two second pieces 6, which are pressing plates, are mounted on the second header 2. The positioning structure and principle of the second member 6 and the second collecting pipe 2 are similar to those of the first member 5 and the first collecting pipe 1, and the detailed description of the present application is omitted.

Although the present application has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the application, and all changes, substitutions and alterations that fall within the spirit and scope of the application are to be understood as being covered by the following claims.

Claims (10)

1. A heat exchange assembly (100) comprising;

a first header (1), the first header (1) having an inner cavity extending along a length direction (L1) of the first header (1), the first header (1) including a first tube wall (11) positioned around the inner cavity, the first tube wall (11) including a first inner surface (13) and a first outer surface (14), the first inner surface (13) being closer to the inner cavity than the first outer surface (14), the first header (1) including at least one first rib (3), the first rib (3) being positioned on the first outer surface (14);

the second collecting pipe (2), the second collecting pipe (21) is provided with an inner cavity extending along the length direction of the second collecting pipe (2);

the heat exchange tubes (4) comprise first end parts (41) and second end parts (42) which are positioned at two ends of the heat exchange tubes (4) opposite to each other in the length direction, the first end parts (41) are connected with the first collecting tube (1), the second end parts (42) are connected with the second collecting tube (2), and through holes of the heat exchange tubes (4) are communicated with the inner cavity of the first collecting tube (1) and the inner cavity of the second collecting tube (2);

at least one first piece (5), said first piece (5) being fixedly connected to said first header (1), said first piece (5) comprising a first face (55), said first face (55) being attached to said first outer surface (14), said first piece (5) having at least one first groove (52), said first rib (3) being at least partially located in a corresponding said first groove (52), said first piece (5) comprising a second face (53) and a third face (54), said second face (53) and third face (54) being located on opposite sides of said first groove (52) in a length direction (L52), respectively;

the first rib (3) comprises a first protruding structure (31) and a second protruding structure (32), the first protruding structure (31) and the second protruding structure (32) are respectively located on two opposite sides of the length direction (L52) of the first groove (52), the first protruding structure (31) comprises a first end face (311), the second protruding structure (32) comprises a second end face (321), the first end face (311) is attached to the second face (53), and the second end face (321) is attached to the third face (54).

2. The heat exchange module (100) according to claim 1, wherein the first rib (3) comprises a first side face (33) and a second side face (34), the first side face (33) and the second side face (34) are respectively located on two opposite sides of the width direction (W3) of the first rib (3), and in a cross section perpendicular to the length direction (L1) of the first header (1), the length of the first side face (33) has a value of a, the length of the second side face (34) has a value of b, and the wall thickness of the first tube wall (11) has a value of c, wherein when b is greater than or equal to a, a is greater than or equal to 1.5c, or when a is greater than or equal to b, b is greater than or equal to 1.5 c.

3. A heat exchange assembly (100) according to claim 2, wherein the height direction (H33) of the first side (33) of the first fin (3) and the height direction (H34) of the second side (34) are parallel to each other; when the first collecting pipe (1) comprises at least two first ribs (3), the height directions (H33) of the first side surfaces (33) of the first ribs (3) are parallel to each other, and the height directions (H34) of the second side surfaces (34) of the first ribs (3) are parallel to each other.

4. A heat exchange module (100) according to claim 2, wherein, in a cross-section taken perpendicular to the length direction (L1) of the first header (1), the first external surface (14) is circular, the first face (55) comprises a first point (551) and a second point (552) at both circumferential ends of the first face (55), a first line (56) connecting the first point (551) to the center of the first external surface (14) is defined, a second line (57) connecting the second point (552) to the center of the first external surface (14) is defined, the first line (56) and the second line (57) form a first included angle (α), and the first included angle has a value of α < 180 °.

5. A heat exchange module (100) according to claim 4, wherein said first included angle (α) has a value in the range of 0 ° < α ≦ 120 ° in a cross-section perpendicular to the length direction (L1) of said first header (1).

6. A heat exchange assembly (100) according to claim 2, wherein the first fin (3) comprises a first top surface (35), one end of the first top surface (35) is connected with the first side surface (33), the other end of the first top surface (35) is connected with the second side surface (34), in a cross section perpendicular to the length direction (L1) of the first header (1), the first top surface (35) comprises a third point (351), a fourth point (352) and a middle section (353), the third point (351) being connected to the first side surface (33), the fourth point (352) being connected to the second side surface (34), a straight line connecting the third point (351) and the fourth point (352) being defined as a third line (36), the middle section (353) protrudes from the third connecting line (36) in a direction away from the first outer surface (14).

7. A heat exchange assembly (100) according to claim 2, wherein the length direction (L33) of the first side face (33) of the first fin (3) and the length direction (L34) of the second side face (34) are parallel to each other; when the first collecting pipe (1) comprises at least two first ribs (3), the length directions (L33) of the first side surfaces (33) of the first ribs (3) are parallel to each other, and the length directions (L34) of the second side surfaces (34) of the first ribs (3) are parallel to each other.

8. A heat exchange module (100) according to claim 7, wherein the length direction (L33) of the first side (33) of the first fin (3) is parallel to the length direction (L1) of the first header (1), and the length direction (L34) of the second side (34) of the second fin (3) is parallel to the length direction (L1) of the first header (1).

9. A heat exchange assembly (100) according to any of claims 1 to 8, wherein the first tube wall (11) of the first header (1) is integrally formed with the first rib (3), and the first header (1) is an extruded profile.

10. A method of manufacturing a heat exchange assembly (100), the method comprising the steps of:

providing a first collecting pipe (1), at least one first piece (5), a second collecting pipe (2) and a plurality of heat exchange pipes (4); the heat exchange tube (4) comprises a first end portion (41) and a second end portion (42) which are located at two opposite ends of the heat exchange tube (4) in the length direction, the first end portion (41) of the heat exchange tube (4) is assembled with the first collecting tube (1), the second end portion (42) of the heat exchange tube (4) is assembled with the second collecting tube (2), the first collecting tube (1) comprises a first tube wall (11) and at least one rib (3), the first tube wall (11) comprises a first inner surface (13) and a first outer surface (14), the first piece (5) comprises at least one first groove (52) and a first surface (55), the first rib (3) is matched with the corresponding first groove (52), at least part of the first rib (3) is located in the corresponding first groove (52), and the first surface (55) is attached to the first outer surface (14), the first piece (5) comprises a second face (53) and a third face (54), the second face (53) and the third face (54) are respectively located at two opposite ends of the first groove (52) in the length direction (L52);

providing a riveting tool, riveting the first convex rib (3) on one side of the length direction (L52) of the first groove (52), wherein the riveting direction of the riveting tool is parallel to the second surface (53), part of the first convex rib (3) is riveted by the riveting tool to form a first convex structure (31), so that the first convex structure (31) is formed to be attached to the first end surface (311) of the second surface (53), riveting the first convex rib (3) on the other side of the length direction (L52) of the first groove (52), the riveting direction of the riveting tool is parallel to the third surface (54), and part of the first convex rib (3) is riveted by the riveting tool to form a second convex structure (32), so that the second convex structure (32) is formed to be attached to the second end surface (321) of the third surface (54);

the assembled first collecting pipe (1), the assembled second collecting pipe (2), the assembled heat exchange pipes (4) and the first collecting pipe (5) are integrally brazed through a furnace, the first end portion (41) is connected with the first collecting pipe (1), the second end portion (42) is connected with the second collecting pipe (2), and the first collecting pipe (5) is fixedly connected with the first collecting pipe (1).

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