Heat exchanger and method of manufacturing the same

Abstract

The application discloses a heat exchanger, which comprises a first collecting device, wherein the first collecting device has a first collecting cavity, the first collecting cavity is a liquid inlet cavity or a liquid outlet cavity, the first collecting cavity has a first cavity and a second cavity; the first collecting device comprises a first collecting component, a second collecting component and a connecting piece, the first connecting piece is at least partially connected between the first collecting component and the second collecting component; the first collecting component comprises a first sealing piece, the second collecting component comprises a second sealing piece; the first connecting piece has a first communicating cavity, the first communicating cavity communicates the first cavity and the second cavity, the first sealing piece seals the first cavity, and the second sealing piece seals the second cavity. The first sealing piece and the second sealing piece are relatively short, and the first collecting cavity is sealed by replacing a relatively long sealing piece, so that the phenomenon that the sealing piece is easily twisted and deformed due to being too long is avoided, and the sealing effect is affected. The application further discloses a manufacturing method of the heat exchanger.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heat exchange, in particular to a heat exchanger and a manufacturing method thereof. BACKGROUND

[0002] A heat exchanger, also known as a heat exchanger, is widely used in heat exchange systems. The heat exchanger can be used for heat exchange between heat exchange medium and external air, and can also be used for heat exchange between two heat exchange media. According to the requirements of the application scene, a heat exchanger with a larger heat exchange area is required, which requires a longer length of the header tank body matched with the core of the heat exchanger; accordingly, the length of the sealing ring used to seal the chamber of the header tank body is longer, and the longer sealing ring is prone to torsional deformation, which affects the sealing effect. SUMMARY

[0003] To solve the problems in the related art, the present application adopts the following technical solutions:

[0004] A heat exchanger, comprising a first header device, the first header device having a first header cavity, the first header cavity being a liquid inlet cavity or a liquid outlet cavity, the first header cavity having a first cavity and a second cavity;

[0005] The first header device comprises a first header component, a second header component and a first connecting piece, the first connecting piece being at least partially connected between the first header component and the second header component; the connecting piece has a first communication cavity, the first communication cavity communicating the first cavity and the second cavity;

[0006] The first header component comprises a first sealing piece, and the second header component comprises a second sealing piece, the first sealing piece sealing the first cavity, and the second sealing piece sealing the second cavity.

[0007] In the present application, the connecting piece has a first communication cavity, the first communication cavity communicates the first cavity and the second cavity, the first sealing piece seals the first cavity, and the second sealing piece seals the second cavity. The shorter first sealing piece and the second sealing piece replace the entire longer sealing piece to seal the first header cavity, reducing the risk of torsional deformation of the excessively long sealing piece, thereby improving the sealing performance.

[0008] The present application also provides a manufacturing method of a heat exchanger, comprising the following steps:

[0009] Providing a first core and a second core, the first core comprising a first heat exchange part and a second part, the first heat exchange part being connected with the second part; the second core comprising a second heat exchange part and a fourth part, the second heat exchange part being connected with the fourth part;

[0010] Providing a first sealing piece and a second sealing piece, a first part, a third part and a first connecting piece;

[0011] Assembling the first piece, the first sealing piece and the second piece to form a first current collecting component, the first sealing piece is clamped between the first piece and the second piece to form a first cavity;

[0012] Assembling the third piece, the second sealing piece and the fourth piece to form a second current collecting component, the second sealing piece is clamped between the third piece and the fourth piece to form a second cavity;

[0013] The first connecting piece connects the second piece and the fourth piece, and the first connecting piece has a first communicating cavity, the first communicating cavity communicates the first cavity and the second cavity.

[0014] In the present application, the connecting piece has a first communicating cavity, the first communicating cavity communicates the first cavity and the second cavity, the first sealing piece seals the first cavity, and the second sealing piece seals the second cavity. The shorter first sealing piece and the second sealing piece replace the entire longer sealing piece to seal the first current collecting cavity, which reduces the hidden danger of easy torsional deformation of the longer sealing piece, thereby improving the sealing performance. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a front view schematic diagram of a heat exchanger in an embodiment of the present application;

[0016] Figure 2 is Figure 1 is an enlarged structural schematic diagram of the circle A part shown in the figure;

[0017] Figure 3 is Figure 1 is a cross-sectional structural schematic diagram of the heat exchanger shown in the figure;

[0018] Figure 4 is Figure 3 is an enlarged structural schematic diagram of the circle B part shown in the figure;

[0019] Figure 5 is an exploded structural schematic diagram of a heat exchanger in an embodiment of the present application;

[0020] Figure 6 is Figure 5 is an enlarged structural schematic diagram of the circle C part shown in the figure;

[0021] Figure 7 is a structural schematic diagram of a first connecting piece of a heat exchanger in an embodiment of the present application;

[0022] Figure 8 is a structural schematic diagram of a first side plate of a heat exchanger in an embodiment of the present application;

[0023] Figure 9 is a structural schematic diagram of a third side plate of a heat exchanger in an embodiment of the present application;

[0024] Figure 10is a sectional view of the structure of the first side plate and the third side plate being connected together in an embodiment of the present application. DETAILED DESCRIPTION

[0025] The exemplary embodiments will be described in detail herein below with reference to the drawings. The following description is merely exemplary in nature and is not intended to limit the present application, application, or the application. Rather, the description is intended to provide such examples of apparatus and methods in accordance with various aspects of the present application, as set forth herein and in the appended claims.

[0026] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

[0027] It is to be understood that the terms "first", "second", and "like" words used in the specification and claims of the present application do not denote any order, quantity, or importance, but are used to distinguish different components. Similarly, "one" or "a" and the like words do not denote a quantity limitation, but mean at least one; "multiple" means two or more, unless otherwise indicated. The terms "front", "lower", and / or "upper" and the like are used for convenience only and are not intended to be limiting to one position or spatial orientation. The terms "include" or "comprise" and the like are meant to be interpreted as including the elements or objects listed after such terms as well as equivalents thereof, and are not limited to the elements or objects recited.

[0028] The heat exchanger of the exemplary embodiments of the present application will be described in detail below with reference to the drawings. The features of the following embodiments and implementation can be supplemented or combined with each other without conflict.

[0029] Figures 1 to 10 The heat exchanger and components of the heat exchanger in some embodiments of the application are shown. As Figure 1 and Figure 3As shown, the heat exchanger comprises a first manifold 2, a second manifold 3 and a main body 1, the first manifold 2 and the second manifold 3 are respectively located at opposite sides of the main body 1, the first manifold 2 is connected with the main body 1, and the second manifold 3 is connected with the main body 1. The first manifold 2 has a first manifold cavity, and the second manifold 3 has a second manifold cavity, one of the first manifold cavity and the second manifold cavity is a liquid inlet cavity, and the other is a liquid outlet cavity. The first manifold cavity and the second manifold cavity are communicated through a cavity of the main body 1. The main body 1 mainly plays a heat exchange role, and comprises a plurality of heat exchange pipes arranged along the length direction of the first manifold 2 and arranged along the length direction of the second manifold 3. The first manifold 2 and the second manifold 3 are respectively located at different sides of the length direction of the heat exchange pipes. The first manifold 2 and the second manifold 3 are arranged in parallel or substantially parallel, which is explained as parallel from the visual observation, but the parallel has an error, and according to the length of the first manifold 2 and the second manifold 3, the error range can be 5°-10°.

[0030] In an embodiment of the present application, the first manifold cavity is the liquid inlet cavity. The first manifold 2 comprises an inlet portion 28, and the inlet portion 28 has an inlet cavity. The first manifold 2 comprises a first manifold pipe, and the inlet portion 28 is a pipe component protruding from the outer wall of the first manifold pipe to a direction away from the first manifold cavity. In order to facilitate the connection with other pipelines and the installation environment, the inlet portion 28 is located at opposite sides of the first manifold pipe, and the inlet portion 28 is located at one side of the length direction of the first manifold pipe, and optionally, the inlet portion 28 is located at three quarters of the length of the first manifold pipe. It can be understood that in other embodiments, the position of the inlet portion 28 on the first manifold pipe is not limited, as long as the liquid can flow into the first manifold cavity through the inlet cavity of the inlet portion 28.

[0031] The second manifold cavity is the liquid outlet cavity. The second manifold 3 comprises an outlet portion 38, and the outlet portion 38 has an outlet cavity. The second manifold 3 comprises a second manifold pipe, and the outlet portion 38 is a pipe component protruding from the outer wall of the second manifold pipe to a direction away from the second manifold cavity. In order to facilitate the connection with other pipelines and the installation environment, the outlet portion 38 is located at opposite sides of the second manifold pipe, and the outlet portion 38 is located at one side of the length direction of the second manifold pipe, and optionally, the outlet portion 38 is located at three quarters of the length of the second manifold pipe. It can be understood that in other embodiments, the position of the outlet portion 38 on the second manifold pipe is not limited, as long as the liquid can flow out of the second manifold cavity through the outlet cavity of the outlet portion 38.

[0032] Along the length direction of the first manifold 2, the inlet portion 28 and the outlet portion 38 are respectively located at different sides of the heat exchanger.

[0033] When the heat exchanger works, fluid flows into the first collecting cavity through the inlet cavity of the inlet part 28, flows to the chambers of the heat exchange pipes through the first collecting cavity, flows into the second collecting cavity after heat exchange through the heat exchange pipes, and flows out from the outlet cavity of the outlet part 38 to complete a fluid circulation path, so as to realize heat exchange.

[0034] As shown in Figures 2 to 10 , the first collecting device 2 comprises a first collecting part, a second collecting part and a first connecting piece 27. Along the length direction of the first collecting device 2, the first collecting part is located at one side of the length direction of the second collecting part, one side of the first connecting piece 27 is connected with one end of the length direction of the first collecting part, and the other side of the first connecting piece 27 is connected with one end of the length direction of the second collecting part. It can be understood that in other embodiments, the first collecting part and the second collecting part can be staggered, and the different sides of the extension direction of the first connecting piece 27 are connected with the first collecting part and the second collecting part respectively.

[0035] As shown in Figure 3 , the inlet part 28 is located in the second collecting part. The first connecting piece 27 has a first communicating cavity 270, the first collecting part has a first cavity 210, the second collecting part has a second cavity 240, and the first communicating cavity 270 communicates the first cavity 210 and the second cavity 240. The first collecting cavity comprises the first cavity 210 and the second cavity 240, and along the length direction of the first collecting device 2, the first cavity 210 is located at one side of the second cavity 240.

[0036] As shown in Figure 4 , the cross-sectional cavity of the first communicating cavity 270 is smaller than the cross-sectional cavity of the first cavity 210, and the cross-sectional cavity of the first communicating cavity 270 is smaller than the cross-sectional cavity of the second cavity 240. That is, when the heat exchanger works, the unit flow of fluid passing through the first communicating cavity 270 is smaller than the unit flow of fluid passing through the first cavity 210, and the unit flow of fluid passing through the first communicating cavity 270 is smaller than the unit flow of fluid passing through the second cavity 240. When the fluid flows from the second cavity 240 to the first cavity 210 through the first communicating cavity 270, the flow rate increases, so that the fluid can be more evenly distributed in the first cavity 210 and the second cavity 240, preventing the phenomenon that too much fluid is distributed in the second cavity 240 and too little fluid is distributed in the first cavity 210.

[0037] As shown in Figure 5 and Figure 6 , the first collecting part comprises a first piece 21, a second piece 22 and a first sealing piece 23 located between the first piece 21 and the second piece 22, the first piece 21 is connected with the second piece 22, and the first cavity 210 is located between the first piece 21 and the second piece 22. The first sealing piece 23 seals the first cavity 210 to prevent fluid from flowing out of the first cavity 210.

[0038] The first piece 21 cooperates with the second piece 22, specifically the first piece 21 is buckled on the second piece 22 through the buckling structure and the positioning structure. As shown, the second piece 22 is rectangular in appearance. Optionally, the four corners of the second piece 22 are all rounded. The second piece 22 is circumferentially formed with a first placement groove for accommodating the first sealing piece 23. The shape of the first placement groove is matched with the shape of the first sealing piece 23, so that the first sealing piece 23 is cooperated therein. The bottom wall surface of the first piece 21 abuts against the first sealing piece 23. After the first piece 21 is buckled with the second piece 22, the first sealing piece 23 is compressed and deformed to realize the sealing effect of the first sealing piece 23. Figure 5

[0039] As shown in the drawings, the first piece 21 has a first opening portion 211 for arranging part of the first connecting piece 27 in the opening of the first opening portion 211. The first opening portion 211 is located at one end of the first piece 21 in the length direction. Optionally, the side of the first connecting piece 27 extending direction is in interference fit with the inner wall surface of the opening of the first opening portion 211. Figure 2 Figure 6 As shown in the drawings, the first sealing piece 23 is a sealing ring, which is a rectangular strip-shaped body. Since the first sealing piece 23 is used to seal the first cavity 210, the length of the first sealing piece 23 is substantially equal to the length of the first cavity 210. The length of the first cavity 210 depends on the length of the first piece 21 and the second piece 22. In an embodiment of the present application, the cross section of the first sealing piece 23 is circular, and the cylindrical strip-shaped sealing ring has the characteristics of convenient processing and good sealing performance. Optionally, the first sealing piece 23 is an integral piece. Optionally, the first sealing piece 23 is a silica gel piece or a rubber piece.

[0040] As shown in the drawings, the first sealing piece 23 is a sealing ring, which is a rectangular strip-shaped body. Since the first sealing piece 23 is used to seal the first cavity 210, the length of the first sealing piece 23 is substantially equal to the length of the first cavity 210. The length of the first cavity 210 depends on the length of the first piece 21 and the second piece 22. In an embodiment of the present application, the cross section of the first sealing piece 23 is circular, and the cylindrical strip-shaped sealing ring has the characteristics of convenient processing and good sealing performance. Optionally, the first sealing piece 23 is an integral piece. Optionally, the first sealing piece 23 is a silica gel piece or a rubber piece. Figure 5 Figure 6 As shown in the drawings, the first sealing piece 23 is a sealing ring, which is a rectangular strip-shaped body. Since the first sealing piece 23 is used to seal the first cavity 210, the length of the first sealing piece 23 is substantially equal to the length of the first cavity 210. The length of the first cavity 210 depends on the length of the first piece 21 and the second piece 22. In an embodiment of the present application, the cross section of the first sealing piece 23 is circular, and the cylindrical strip-shaped sealing ring has the characteristics of convenient processing and good sealing performance. Optionally, the first sealing piece 23 is an integral piece. Optionally, the first sealing piece 23 is a silica gel piece or a rubber piece.

[0041] In some embodiments, the first piece 21 is in the shape of a shell. Optionally, the first piece 21 is in the shape of an arched shell. The first piece 21 is a plastic piece. The second piece 22 is a metal piece, which is optionally an aluminum alloy piece. Optionally, the first piece 21 is an integral piece, and the second piece 22 is an integral piece.

[0042] The second current collecting component includes a third piece 24, a fourth piece 25, and a second sealing piece 26 located between the third piece 24 and the fourth piece 25. The third piece 24 is connected with the fourth piece 25, and a second cavity 240 is located between the third piece 24 and the fourth piece 25. The second sealing piece 26 seals the second cavity 240 to prevent fluid from flowing out of the second cavity 240.

[0043] The third piece 24 cooperates with the fourth piece 25, specifically the third piece 24 is buckled on the fourth piece 25 through the buckling structure and the positioning structure. As shown in the drawings, the fourth piece 25 is rectangular in appearance. Optionally, the four corners of the fourth piece 25 are all rounded. The fourth piece 25 is circumferentially formed with a second placement groove for accommodating the second sealing piece 26. The shape of the second placement groove is matched with the shape of the second sealing piece 26, so that the second sealing piece 26 is cooperated therein. The bottom wall surface of the third piece 24 abuts against the second sealing piece 26. After the third piece 24 is buckled with the fourth piece 25, the second sealing piece 26 is compressed and deformed to realize the sealing effect of the second sealing piece 26. Figure 5 ​​​As shown, the fourth piece 25 is visually rectangular. Optionally, all four corners of the fourth piece 25 are rounded. The fourth piece 25 has a second placement groove formed circumferentially, which is used to accommodate the second seal 26. The shape of the second placement groove is adapted to the shape of the second seal 26 so that the second seal 26 fits within it. The bottom wall surface of the third piece 24 abuts against the second seal 26. After the third piece 24 and the fourth piece 25 are engaged, the second seal 26 is compressed and deformed, achieving its sealing function.

[0044] like Figure 5 and Figure 6 As shown, the second sealing element 26 is a sealing ring, which is a rectangular strip. Since the second sealing element 26 is used to seal the second cavity 240, its length is approximately equal to the length of the second cavity 240. The length of the second cavity 240 depends on the lengths of the third element 24 and the fourth element 25. In one embodiment of this application, the cross-section of the second sealing element 26 is circular. The cylindrical strip sealing ring has the advantages of easy processing and good sealing performance. Optionally, the second sealing element 26 is a single piece. The second sealing element 26 is a silicone or rubber component.

[0045] In one embodiment of this application, the third component 24 includes an inlet 28 and a circumferential wall, and the second cavity 240 is located between the circumferential wall and the fourth component 25. The inlet 28 extends from the outer wall of the circumferential wall in a direction away from the second cavity 240. The inlet 28 is an extended pipe with a chamber, which is the inlet mouth of the inlet 28. When the heat exchanger is working, the fluid flows through the inlet mouth to the second cavity 240, and from the second cavity 240 to the first connecting cavity 270. Since the unit flow rate of the first connecting cavity 270 is less than that of the second cavity 240, the fluid will accelerate towards the first cavity 210 after passing through the first connecting cavity 270.

[0046] like Figure 2 and Figure 6 As shown, the third member 24 has a second opening 241 for a portion of the first connector 27 to be disposed within the opening of the second opening 241. The second opening 241 is located at one end of the third member 24 along its length. Optionally, one side of the first connector 27 along its extension direction is interference-fitted with the inner wall surface of the opening of the second opening 241.

[0047] Optionally, the first opening 211 and the second opening 241 are arranged facing each other or opposite each other. One side of the first connector 27 along its length mates with the first opening 211, and the other side of the first connector 27 along its length mates with the second opening 241. For example... Figure 6As shown, the second opening 241 is arched. The opening of the second opening 241 is an arched doorway. The shape of the second opening 241 is similar to the cross-sectional shape of the third member 24. Optionally, the shape of the first opening 211 corresponds to the shape of the second opening 241. Optionally, the cross-sectional shape of the first connector 27 is adapted to the shape of the first opening 211.

[0048] In some embodiments, the third component 24 is in the shape of a shell, optionally in the shape of an arched shell. The third component 24 is a plastic component. The fourth component 25 is a metal component, optionally an aluminum alloy component. The third component 24 and the fourth component 25 are each integral parts.

[0049] like Figure 7 As shown, the first connector 27 is a straight tube open at both ends, including a first open side 271 and a second open side 272. Along the extending direction of the first communicating cavity 270, the first open side 271 and the second open side 272 are located on different sides of the first connector 27. The first open side 271 mates with the first opening 211, and the first open side 271 is fitted at the opening of the first opening 211. Optionally, the outer wall surface of the first open side 271 is interference-fitted with the opening of the first opening 211. Optionally, both the first connector 27 and the first part 21 are plastic parts. The first open side 271 and the first opening 211 are welded by laser welding or ultrasonic welding. The second open side 272 mates with the second opening 241, and the second open side 272 is fitted at the opening of the second opening 241. Optionally, the outer wall surface of the second open side 272 is interference-fitted with the opening of the second opening 241. Optionally, the second opening side 272 and the second opening portion 241 are connected by laser welding or ultrasonic welding.

[0050] The first connector 27 also includes a bottom 273 and a side portion 274, with the first communicating cavity 270 located between the bottom 273 and the side portion 274. The bottom 273 is the bottom wall of the first communicating cavity 270, and the side portion 274 is the circumferential wall of the first communicating cavity 270. The shape of the first connector 27 is designed to match the shape of the first collecting component and to fit with the first opening 211 and the second opening 241. The bottom 273 is flat, allowing for easy contact between the first collecting component and the first connector 27, and facilitating laser or ultrasonic welding between them, thus increasing the reliability between them. The side portion 274 is arched, allowing for smooth fluid flow. The bottom 273 includes an inner bottom wall and an outer bottom wall, located on different sides of the bottom 273 in the thickness direction. The inner bottom wall is located in the first communicating cavity 270, and the outer bottom wall faces the main body 1. The side section 274 is arched to allow for smooth fluid flow.

[0051] The first current collecting device 2 is divided into two independent units, i.e., a first current collecting component and a second current collecting component. The first current collecting device is replaced by a first piece 21, a second piece 22, a third piece 24 and a fourth piece 25. The first piece 21, the second piece 22, the third piece 24 and the fourth piece 25 are shorter than the first component and the second component of the conventional first current collecting device. The planeness and straightness of the first piece 21, the second piece 22, the third piece 24 and the fourth piece 25 are smaller, so that the cooperation between the first piece 21, the second piece 22, the third piece 24 and the fourth piece 25 is facilitated. The smaller size of the first piece 21, the second piece 22, the third piece 24 and the fourth piece 25 also facilitates the assembly.

[0052] The first seal 23 and the second seal 26 are provided to seal the first current collecting cavity. The first seal 23 and the second seal 26 prevent the seal from being too long and being twisted and deformed, thereby affecting the sealing effect. When the seal is too long, the cross section of the seal is relatively small, the injection molding product is severely deformed, the size is difficult to control, and the qualified rate of the product is low.

[0053] Figure 1 As shown in the drawings, the main body 1 further includes a first heat exchange part 11 and a second heat exchange part 12. The first heat exchange part 11 and the second heat exchange part 12 are arranged along the length direction of the first current collecting device 2. The first heat exchange part 11 is connected to the first current collecting part. Specifically, the first heat exchange part 11 includes a plurality of first heat exchange pipes 111, and the second piece 22 includes a plurality of first plug-in grooves 220 arranged along the length direction of the second piece 22. One side of the first heat exchange pipe 111 in the length direction is located in the first plug-in groove 220. Optionally, the one side of the first heat exchange pipe 111 in the length direction is in interference fit with the first plug-in groove 220, so as to facilitate the furnace welding.

[0054] The second heat exchange part 12 is connected to the second current collecting part. Specifically, the second heat exchange part 12 includes a plurality of second heat exchange pipes 121, and the fourth piece 25 includes a plurality of second plug-in grooves 250 arranged along the length direction of the fourth piece 25. One side of the second heat exchange pipe 121 in the length direction is located in the second plug-in groove 250. Optionally, the one side of the second heat exchange pipe 121 in the length direction is in interference fit with the second plug-in groove 250, so as to facilitate the furnace welding.

[0055] Figure 1 、 Figure 3 and Figure 5 The second current collecting device 3 in an embodiment of the present application is shown. The second current collecting device 3 has substantially the same structure as the first current collecting device 2, and thus will not be described in detail. The second current collecting device 3 will only be described briefly.

[0056] The second current collecting device 3 includes a third current collecting component, a fourth current collecting component and a second connecting piece 37. The second connecting piece 37 is connected between the third current collecting component and the fourth current collecting component. Along the length direction of the second current collecting device 3, the third current collecting component is located on one side of the fourth current collecting component. The third current collecting component includes the above-mentioned outlet part 38.

[0057] The third manifold assembly includes a fifth component 31, a sixth component 32, and a third seal 33. The third manifold assembly has a third cavity 310.

[0058] The fourth manifold includes a seventh component 34, an eighth component 35, and a fourth seal 36. The fourth manifold has a fourth cavity 340.

[0059] The chamber of the second connector 37 connects the third chamber 310 and the fourth chamber 340.

[0060] like Figure 1 , Figure 3 and Figure 5 As shown, along the length of the first heat exchange tube 111, one side of the first heat exchange section is connected to the first collector component, and the other side is connected to the third collector component. Specifically, one side of several first heat exchange tubes 111 along their length is connected to the second component 22, and the other side is connected to the sixth component 32. Along the length of the second heat exchange tube 121, one side of the second heat exchange section is connected to the second collector component, and the other side is connected to the fourth collector component. Specifically, one side of several second heat exchange tubes 121 along their length is connected to the fourth component 25, and the other side is connected to the eighth component 35.

[0061] like Figures 1 to 10 As shown, the first heat exchange section further includes a first side plate 13 and a second side plate 110. Along the length direction of the first collector component, the first side plate 13 and the second side plate 110 are located on opposite sides of the first heat exchange section, respectively, to protect the first heat exchange tube 111. The second heat exchange section further includes a third side plate 14 and a fourth side plate 120. Along the length direction of the second collector component, the third side plate 14 and the fourth side plate 120 are located on opposite sides of the second heat exchange section, respectively, to protect the second heat exchange tube 121.

[0062] Along the length of the first current collecting device 2, the second side plate 110 and the fourth side plate 120 are located on different sides of the main body 1. That is, along the length of the first current collecting device 2, the second side plate 110 is further away from the first connecting member 27 relative to the first side plate 13, and the fourth side plate 120 is further away from the first connecting member 27 relative to the third side plate 14. The second side plate 110 is connected to the second member 22 on one side and to the sixth member 32 on the other side. The fourth side plate 120 is connected to the fourth member 25 on one side and to the eighth member 35 on the other side.

[0063] Figures 8 to 10The illustration shows a first side plate 13, a third side plate 14, and a partial connection structure between the first side plate 13 and the third side plate 14 in one embodiment of this application. The first side plate 13 is connected to the second component 22 on one side along its length and to the sixth component 32 on the other side. The third side plate 14 is connected to the fourth component 25 on one side along its length and to the eighth component 35 on the other side. The connection between the first side plate 13 and the third side plate 14 serves to fix the first heat exchange section and the second heat exchange section, integrating the first heat exchange section and the second heat exchange section into a single heat exchange core. Optionally, the first side plate 13 and the third side plate 14 are brazed together.

[0064] Specifically, such as Figures 8 to 10 As shown, the first side plate 13 includes a first engaging portion, and the third side plate 14 includes a second engaging portion, with the first engaging portion and the second engaging portion engaging with each other. The first engaging portion has a first engaging groove 130, and part or all of the second engaging portion is located in the first engaging groove 130, with part or all of the second engaging portion engaging with the first engaging groove 130. Optionally, part or all of the second engaging portion is interference-fitted with the first engaging groove 130 to facilitate reflow soldering.

[0065] Specifically, the first engaging portion is in the shape of a bent plate, comprising a first bottom wall 133, a first bent portion 131, and a second bent portion 132, and has a first engaging groove 130. Along the thickness direction of the first bottom wall 133, both the first bent portion 131 and the second bent portion 132 extend from the same side of the first bottom wall 133. The first bent portion 131 and the second bent portion 132 are parallel, the first bottom wall 133 is the bottom wall of the first engaging groove 130, and both the first bent portion 131 and the second bent portion 132 are side walls of the first engaging groove 130. The first engaging groove 130 is located between the first bent portion 131, the second bent portion 132, and the first bottom wall 133. Optionally, the first bent portion 131, the second bent portion 132, and the first bottom wall 133 are all rectangular straight plates. Optionally, the first side plate 13 is a single piece. The width of the optional first bend 131 is equal to the width of the second bend 132 to facilitate processing.

[0066] The second engaging portion is in the shape of a bent plate, comprising a second bottom wall 143, a third bent portion 141, and a fourth bent portion 142, and has a second engaging groove 140. Along the thickness direction of the second bottom wall 143, both the third bent portion 141 and the fourth bent portion 142 extend from the same side of the second bottom wall 143. The third bent portion 141 and the fourth bent portion 142 are parallel, the second bottom wall 143 is the bottom wall of the second engaging groove 140, and both the third bent portion 141 and the fourth bent portion 142 are side walls of the second engaging groove 140. The second engaging groove 140 is located between the third bent portion 141, the fourth bent portion 142, and the second bottom wall 143. Optionally, the third bent portion 141, the fourth bent portion 142, and the second bottom wall 143 are all rectangular straight plates. Optionally, the third side plate 14 is a single piece. Optionally, the width of the third bend 141 is equal to the width of the fourth bend 142 to facilitate processing and forming.

[0067] Optionally, the depth of the first snap-fit ​​groove 130 is less than the depth of the second snap-fit ​​groove 140. That is, the width of the first bend 131 is less than the width of the third bend 141, and the width of the second bend 132 is less than the width of the fourth bend 142.

[0068] The inner wall surface of part or all of the first bend 131 mates with the outer wall surface of part or all of the third bend 141, and the inner wall surface of part or all of the second bend 132 mates with the outer wall surface of part or all of the fourth bend 142. Optionally, the inner wall surface of part or all of the first bend 131 is fitted with the outer wall surface of part or all of the third bend 141, and the inner wall surface of part or all of the second bend 132 is fitted with the outer wall surface of part or all of the fourth bend 142, facilitating effective welding between the first bend 131 and the third bend 141, and between the second bend 132 and the fourth bend 142, thereby increasing the connection area between the first side plate 13 and the third side plate 14, and increasing the firmness between the first side plate 13 and the third side plate 14.

[0069] like Figure 8 and Figure 9 As shown, the first side plate 13 further includes a first snap-fit ​​portion 134, which is located at one end of the length direction of the first side plate 13. The first snap-fit ​​portion 134 is connected to one end of the length direction of the first bottom wall 133. The first snap-fit ​​portion 134 is in the shape of a bent plate, and includes a first mating portion 136 and a first connecting portion 135. The first connecting portion 135 is plate-shaped and is bent toward the direction of the first snap-fit ​​groove 130, and the extension direction of the first connecting portion 135 is set at an acute angle to the extension direction of the first bottom wall 133. Optionally, the first mating portion 136 is plate-shaped, and the extension direction of the first mating portion 136 is parallel to the extension direction of the first bottom wall 133.

[0070] The second piece 22 comprises a first clasp 221, which is located at one end of the second piece 22 in the length direction and is connected to one side of the second piece 22 in the length direction. The first clasp 221 has an inverted U-shaped slot, the slot width of which is greater than, less than, or equal to the thickness of the first fitting part 136. The first fitting part 136 is inserted into the U-shaped slot. Optionally, the first clasp 221 and the first fitting part 136 are connected by brazing.

[0071] The third edge plate 14 further comprises a second clasp 144, which is located at one end of the third edge plate 14 in the length direction and is connected to one end of the second bottom wall 143 in the length direction. The second clasp 144 is in the form of a bent plate, and comprises a second fitting part 146 and a second connecting part 145. The second connecting part 145 is in the form of a plate, is bent towards the direction of the second clasp slot 140, and is arranged at an acute angle to the extension direction of the second bottom wall 143. The extension direction of the second fitting part 146 is parallel to the extension direction of the second bottom wall 143.

[0072] The fourth piece 25 comprises a second clasp 251, which is located at one end of the fourth piece 25 in the length direction and is connected to one side of the fourth piece 25 in the length direction. The second clasp 251 has an inverted U-shaped slot, the slot width of which is greater than, less than, or equal to the thickness of the second fitting part 146. The second fitting part 146 is inserted into the U-shaped slot. Optionally, the second clasp 251 and the second fitting part 146 are connected by brazing.

[0073] The first clasp 221 has a first notch 137, which is located on one side of the first fitting part 136 in the length direction of the first heat exchange pipe 111 and is in the form of a square opening. This prevents interference between the first clasp 221 and the first fitting part 136.

[0074] The second clasp 144 has a second notch 147, which is located on one side of the second fitting part 146 in the length direction of the first heat exchange pipe 111 and is in the form of a square opening. This prevents interference between the second clasp 251 and the second fitting part 146.

[0075] One end of the first edge plate 13 in the length direction is structurally identical to the other end of the first edge plate 13, and the connecting structure of the corresponding components is the same. In addition, one end of the third edge plate 14 in the length direction is structurally identical to the other end of the third edge plate 14, and the connecting structure of the corresponding components is the same. The structure of the other end of the first edge plate 13 and the structure of the other end of the third edge plate 14 are not described again here.

[0076] In some embodiments, the present application also provides a manufacturing method of a heat exchanger, which comprises the following steps:

[0077] The first core body comprises a first heat exchange part 11 and a second piece 22, and the first heat exchange part 11 is connected with the second piece 22; and the second core body comprises a second heat exchange part 12 and a fourth piece 25, and the second heat exchange part 12 is connected with the fourth piece 25.

[0078] The first sealing piece 23, the second sealing piece 26, the first piece 21, the third piece 24 and the first connecting piece 27 are provided.

[0079] The first piece 21, the first sealing piece 23 and the second piece 22 are assembled to form a first current collecting part, the first sealing piece 23 is clamped between the first current collecting part and the second piece 22 to form a first cavity 210.

[0080] The third piece 24, the second sealing piece 26 and the fourth piece 25 are assembled to form a second current collecting part, the second sealing piece 26 is clamped between the third piece 24 and the fourth piece 25 to form a second cavity 240, the first connecting piece 27 connects the second piece 22 and the fourth piece 25, and the first connecting piece 27 has a first communication cavity 270 which communicates the first cavity 210 and the second cavity 240. The shorter first sealing piece 23 and the second sealing piece 26 are used to replace the entire longer sealing piece to seal the first current collecting cavity, so as to reduce the risk of easy torsional deformation of the longer sealing piece and improve the sealing performance.

[0081] Optionally, the first side plate 13 and the third side plate 14 are provided, the first side plate 13 is located on one side of the first heat exchange part 11 and connected with the first heat exchange part 11, the third side plate 14 is located on one side of the second heat exchange part 12 and connected with the second heat exchange part 12, one side of the first side plate 13 in the length direction is connected with the second piece 22, and one side of the third side plate 14 in the length direction is connected with the fourth piece 25; the third side plate 14 is connected with the first side plate 13 to improve the connection reliability of the first core body and the second core body and integrate the first core body and the second core body into a one-piece core body.

[0082] Optionally, the one-piece core body is subjected to furnace brazing.

[0083] Optionally, the first connecting piece 27 is first assembled on the first piece 21, then the first piece 21 with the first connecting piece 27 is assembled on the second piece 22, then the third piece 24 is matched with the first connecting piece 27, and the third piece 24 and the fourth piece 25 are assembled together.

[0084] Optionally, the first connecting piece 27 is laser connected or ultrasonic connected with the first piece 21, and the first connecting piece 27 is laser connected or ultrasonic connected with the second piece 22.

[0085] Optionally, the first core and the second core can be integrated into an integrated core by connecting the first side plate 13 and the second side plate 14 together with the same tooling. This can reduce the size of the core assembling device and make the size easy to control, and make the assembling of the heat exchanger more convenient and fast.

[0086] The above description is only the preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed as the preferred embodiment, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content without departing from the scope of the present application, and any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present application still belongs to the scope of the present application.

Claims

1. A heat exchanger, characterized by, The first current collecting device (2) has a first current collecting cavity (210, 240) which is a liquid inlet cavity or a liquid outlet cavity, and the first current collecting cavity (210, 240) has a first cavity (210) and a second cavity (240); The first current collecting device (2) comprises a first current collecting part (21, 22, 23, 210), a second current collecting part (24, 25, 26, 240), and a first connecting piece (27) which is at least partially connected between the first current collecting part (21, 22, 23, 210) and the second current collecting part (24, 25, 26, 240), and the first connecting piece (27) has a first communicating cavity (270) which communicates the first cavity (210) and the second cavity (240); The first current collecting part (21, 22, 23, 210) comprises a first sealing piece (23), and the second current collecting part (24, 25, 26, 240) comprises a second sealing piece (26), the first sealing piece (23) seals the first cavity (210), and the second sealing piece (26) seals the second cavity (240); the first current collecting part (21, 22, 23, 210) is located on one side of the second current collecting part (24, 25, 26, 240) in the length direction, and the first current collecting part (21, 22, 23, 210) comprises a first piece (21), a second piece (22), and the first sealing piece (23) located between the first piece (21) and the second piece (22), the first piece (21) is connected with the second piece (22), and the first cavity (210) is located between the first piece (21) and the second piece (22); the first sealing piece (23) is a sealing ring; The second current collecting part (24, 25, 26, 240) comprises a third piece (24), a fourth piece (25), and the second sealing piece (26) located between the third piece (24) and the fourth piece (25), the third piece (24) is connected with the fourth piece (25), and the second cavity (240) is located between the third piece (24) and the fourth piece (25); the second sealing piece (26) is a sealing ring; One end of the first piece (21) in the length direction has a first opening part (211), one end of the third piece (24) in the length direction has a second opening part (241), the first connecting piece (27) comprises a first opening side (271) and a second opening side (272), the first opening side (271) and the second opening side (272) are respectively located on different sides of the first connecting piece (27) in the length direction, the first opening side (271) is matched with the first opening part (211), and the second opening side (272) is matched with the second opening part (241).

2. The heat exchanger of claim 1, wherein The first connecting piece (27) is in a straight pipe shape, the first piece (21) and the third piece (24) are in a shell shape, the outer wall surface of the first opening side (271) is in interference fit with the first opening portion (211), and the outer wall surface of the second opening side (272) is in interference fit with the second opening portion (241). The first piece (21), the third piece (24) and the first connecting piece (27) are plastic pieces, the first opening side (271) and the first opening portion (211) are connected by laser welding or ultrasonic connection, and the second opening side (272) and the second opening portion (241) are connected by laser welding or ultrasonic connection.

3. The heat exchanger of claim 2, wherein The first connecting piece (27) comprises a bottom (273) and a side (274), the bottom (273) is in a flat plate shape, and the side (274) is in an arch shape.

4. The heat exchanger of claim 1, wherein The heat exchanger comprises a main body (1), the main body (1) comprises a first heat exchange part (11) and a second heat exchange part (12), the first heat exchange part (11) and the second heat exchange part (12) are arranged along the length direction of the first current collecting device (2); the first heat exchange part (11) comprises a plurality of first heat exchange pipes (111) and a first side plate (13), the plurality of first heat exchange pipes (111) and the first side plate (13) are arranged along the length direction of the current collecting device, and the first side plate (13) is located on one side of the first heat exchange part (11); The second heat exchange part (12) comprises a plurality of second heat exchange pipes (121) and a third side plate (14), the plurality of second heat exchange pipes (121) and the third side plate (14) are arranged along the length direction of the first current collecting device (2), and the first side plate (13) is located on one side of the second heat exchange part (12); the first side plate (13) is connected with the third side plate (14); The second piece (22) and the fourth piece (25) are aluminum alloy pieces, the second piece (22) is connected with the first heat exchange part (11) by brazing, and the fourth piece (25) is connected with the second heat exchange part (12) by brazing.

5. The heat exchanger of claim 4, wherein The first side plate (13) comprises a first clamping part (131, 132, 133, 130), the third side plate (14) comprises a second clamping part (141, 142, 143, 140), the first clamping part (131, 132, 133, 130) has a first clamping groove (130), at least part of the second clamping part (141, 142, 143, 140) is located in the first clamping groove (130), and the second clamping part (141, 142, 143, 140) is in interference fit with the first clamping groove (130).

6. The heat exchanger of claim 5, wherein The first clamping part (131, 132, 133, 130) comprises a first bottom wall (133), a first bending part (131) and a second bending part (132), the first bending part (131) and the second bending part (132) are both extended from the first bottom wall (133) to the same side of the first bottom wall (133) along the thickness direction of the first bottom wall (133), and the first bending part (131) is parallel to the second bending part (132), the first bottom wall (133) is the bottom wall of the first clamping groove (130), and the first bending part (131) and the second bending part (132) are both side walls of the first clamping groove (130); The second clamping part (141, 142, 143, 140) comprises a second bottom wall (143), a third bending part (141) and a fourth bending part (142), the third bending part (141) and the fourth bending part (142) are both extended from the second bottom wall (143) to the same side of the second bottom wall (143) along the thickness direction of the second bottom wall (143), and the third bending part (141) is parallel to the fourth bending part (142); The inner wall surface of at least part of the first bending part (131) cooperates with the outer wall surface of at least part of the third bending part (141), and the inner wall surface of at least part of the second bending part (132) cooperates with the outer wall surface of at least part of the fourth bending part (142).

7. The heat exchanger of claim 6, wherein The first edge plate (13) further comprises a first clamping part (134), the first clamping part (134) is located at one end of the first edge plate (13) in the length direction, the first clamping part (134) is connected to one end of the first bottom wall (133) in the length direction, the first clamping part (134) is in the form of a bent plate, the first clamping part (134) comprises a first matching part (136) and a first connecting part (135), the first connecting part (135) is in the form of a plate, the extension direction of the first connecting part (135) is arranged at an acute angle with the extension direction of the first bottom wall (133); the extension direction of the first matching part (136) is arranged in parallel with the extension direction of the first bottom wall (133); The second piece (22) comprises a first clasp (221), the first clasp (221) is located at one end of the second piece (22) in the length direction and is connected to one side of the second piece (22) in the length direction, the first clasp (221) has an inverted U-shaped groove, the groove width of the U-shaped groove is greater than, less than or equal to the thickness of the first matching part (136), and the first matching part (136) is inserted into the U-shaped groove; The third edge plate (14) further comprises a second clamping part (144) located at one end of the third edge plate (14) in the length direction, connected with one end of the second bottom wall (143) in the length direction, in the form of a bent plate, comprising a second matching part (146) and a second connecting part (145), the second connecting part (145) being in the form of a plate, the extension direction of the second connecting part (145) being arranged at an acute angle with the extension direction of the second bottom wall (143); the extension direction of the second matching part (146) being arranged parallel to the extension direction of the second bottom wall (143); The fourth piece (25) comprises a second buckle (251) located at one end of the fourth piece (25) in the length direction and connected with one side of the fourth piece (25) in the length direction, the second buckle (251) having an inverted U-shaped groove, the groove width of the U-shaped groove being greater than or less than or equal to the thickness of the second matching part (146), and the second matching part (146) being inserted into the U-shaped groove.

8. The heat exchanger of claim 7, wherein The first clamping part (134) has a first notch (137) located on one side of the first matching part (136) along the length direction of the first heat exchange pipe (111), the first notch (137) being in the form of a square opening; The second clamping part (144) has a second notch (147) located on one side of the second matching part (146) along the length direction of the first heat exchange pipe (111), the second notch (147) being in the form of a square opening; The first piece (21), the second piece (22), the third piece (24) and the fourth piece (25) are respectively one-piece, and the first sealing piece (23) and the second sealing piece (26) are respectively one-piece.

9. A method of manufacturing a heat exchanger, characterized by, A manufacturing method for manufacturing the heat exchanger of any one of claims 1-8, the manufacturing method comprising the following steps: providing a first core and a second core, the first core comprising a first heat exchange part (11) and a second piece (22), the first heat exchange part (11) being connected with the second piece (22); the second core comprising a second heat exchange part (12) and a fourth piece (25), the second heat exchange part (12) being connected with the fourth piece (25); providing a first sealing piece (23), a second sealing piece (26), a first piece (21), a third piece (24) and a first connecting piece (27); assembling the first piece (21), the first sealing piece (23) and the second piece (22) to form a first collecting component (21, 22, 23, 210), the first sealing piece (23) being clamped between the first piece (21) and the second piece (22) to form a first cavity (210); assembling the third piece (24), the second sealing piece (26) and the fourth piece (25) to form a second collecting component (24, 25, 26, 240), the second sealing piece (26) being clamped between the third piece (24) and the fourth piece (25) to form a second cavity (240); The first connecting piece (27) connects the second piece (22) and the fourth piece (25), and has a first communicating cavity (270) which communicates the first cavity (210) with the second cavity (240).

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