Heat exchanger, heat exchange system and vehicle

Abstract

The embodiment of the utility model relates to the technical field of heat exchangers, and particularly discloses a heat exchanger, a heat exchange system and a vehicle, the heat exchanger comprises a heat exchanger body, a first flow guide pipe and a mounting plate, the heat exchanger body is provided with a heat exchange channel for a heat exchange medium to pass through, and the mounting plate is fixed to the heat exchanger body and provided with a first via hole; a first groove is formed in the surface, facing the heat exchanger body, of the mounting plate and communicates with the first via hole, the first flow guide pipe penetrates through the first via hole, one end of the first flow guide pipe communicates with one end of the heat exchange channel, and a first boss is arranged on the outer side wall of the end, communicating with the heat exchange channel, of the first flow guide pipe; at least part of the first boss is located in the first groove, and the first boss abuts against the heat exchanger body and the mounting plate. Compared with an expanded connection mode, the mode that the mounting plate is sleeved and clamped with the first flow guide pipe so as to fix the first flow guide pipe to the heat exchanger body is beneficial for reducing the risk caused by deformation of the flow guide pipe, and the connection stability is enhanced.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of heat exchangers, and in particular to a heat exchanger, a heat exchange system, and a vehicle. Background Art

[0002] Heat exchangers are widely used in industries such as chemical engineering, petroleum, and power. They are used to transfer heat between two or more fluids at different temperatures, transferring heat from the higher-temperature fluid to the lower-temperature fluid, thereby bringing the fluid temperature to the specified process temperature, meeting process requirements and improving energy efficiency. A heat exchanger primarily consists of a heat exchanger body, a mounting plate, and a flow guide tube. The heat exchanger body is provided with a heat exchange channel, which is mounted within the heat exchanger body and connected to the flow guide tube at both ends. The flow guide tube is mounted on the mounting plate, which is then mounted on the heat exchanger body.

[0003] The connection between the flow guide tube and the mounting plate is typically achieved through expansion. Specifically, the flow guide tube is first inserted into the mounting plate, then squeezed into the tube using a tube expander. This creates a certain amount of compression between the mounting plate and the flow guide tube, securing them in place. The mounting plate is equipped with a positioning structure that mates with the heat exchanger body, securing the mounting plate to the heat exchanger. This expansion connection method is difficult to manufacture and suffers from low processing efficiency. Utility Model Content

[0004] In view of the above problems, the embodiments of the present application provide a heat exchanger, a heat exchange system and a vehicle, which are conducive to reducing the difficulty of installing the guide pipe and improving processing efficiency.

[0005] The inventors found that the expansion connection method is a manual process, and it is not easy to control the verticality and position of the guide tube, the processing efficiency is low, and the guide tube is easily deformed, and the deformed guide tube will affect the structure and material properties of the guide tube. In view of this, a technical solution adopted in this application is: a heat exchanger is provided, including a heat exchanger body, a first guide tube and a mounting plate, the heat exchanger body is provided with a heat exchange channel, the heat exchange channel is used for heat exchange medium to pass through, the mounting plate is fixed to the heat exchanger body, the mounting plate is provided with a first through-hole, and a first groove is provided on the surface of the mounting plate facing the heat exchanger body along the extension direction of the first through-hole, the first groove is connected to the first through-hole, the first guide tube is passed through the first through-hole, one end of the first guide tube is connected to one end of the heat exchange channel, and the outer wall of the end of the first guide tube connected to the heat exchange channel is provided with a first boss, at least part of the first boss is located in the first groove, and the first boss is abutted against both the heat exchanger body and the mounting plate.

[0006] In some embodiments, the first groove and the first boss are both annular in shape, and the annular first boss is disposed around the first flow guide tube.

[0007] In some embodiments, the heat exchanger body is provided with a second groove, and along the depth direction of the second groove, one end of the heat exchange channel is connected to the second groove, part of the first boss is located in the first groove, and the other part of the first boss is located in the second groove.

[0008] In some embodiments, the first boss is welded and fixed to the bottom of the second groove of the heat exchanger body.

[0009] In some embodiments, the thickness of the first boss is greater than the depth of the first groove, and the thickness of the first boss is greater than the depth of the second groove, and / or the thickness of the first boss is less than or equal to the sum of the depths of the first groove and the second groove.

[0010] In some embodiments, ports at both ends of the heat exchange channel for supplying and discharging heat exchange medium are located on the surface of the heat exchanger body facing the mounting plate along the depth direction of the first groove. The mounting plate is further provided with a second through-hole. A third groove is provided on the surface of the mounting plate facing the heat exchanger along the extension direction of the second through-hole, and the third groove is connected to the second through-hole. A first flow conduit is connected to one end of the heat exchange channel. The heat exchanger further includes a second flow conduit, which is provided through the second through-hole and one end of which is connected to the other end of the heat exchange channel. A second boss is provided on the outer sidewall of the end of the second flow conduit connected to the heat exchange channel, at least a portion of which is located in the third groove. The second boss abuts against both the heat exchanger body and the mounting plate.

[0011] In some embodiments, the heat exchanger body is provided with a fourth groove, and along the depth direction of the fourth groove, the port at the other end of the heat exchange channel is connected to the fourth groove, part of the second boss is located in the third groove, and the other part of the second boss is located in the fourth groove.

[0012] In some embodiments, the second boss is welded and fixed to the bottom of the fourth groove of the heat exchanger body, the thickness of the second boss is greater than the depth of the third groove, and the thickness of the first boss is greater than the depth of the fourth groove, and / or the thickness of the second boss is less than or equal to the sum of the depths of the third groove and the fourth groove.

[0013] In order to solve the above technical problems, another technical solution adopted in this application is: providing a heat exchange system, including the above heat exchanger.

[0014] In order to solve the above technical problems, another technical solution adopted in this application is: to provide a vehicle, including the above heat exchange system.

[0015] The beneficial effects of the embodiments of the present application are as follows: Unlike the prior art, the embodiments of the present application provide a heat exchanger, a heat exchange system, and a vehicle. The heat exchanger includes a heat exchanger body, a first flow conduit, and a mounting plate. The heat exchanger body is provided with a heat exchange channel for passing a heat exchange medium. The mounting plate is fixed to the heat exchanger body and has a first through-hole. A first groove is provided on a surface of the mounting plate facing the heat exchanger body along the extension direction of the first through-hole. The first groove communicates with the first through-hole. A first flow conduit is provided through the first through-hole. One end of the first flow conduit communicates with one end of the heat exchange channel. A first boss is provided on the outer wall of the end of the first flow conduit communicating with the heat exchange channel. At least a portion of the first boss is located in the first groove. The first boss abuts against both the heat exchanger body and the mounting plate. Compared to an expansion joint, the method of securing the first flow conduit to the heat exchanger body by clamping the mounting plate with the first flow conduit helps reduce the risk of deformation of the first flow conduit and enhances the stability of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the drawings without creative work.

[0017] Figure 1 is a three-dimensional diagram of a heat exchanger provided in one embodiment of the present application;

[0018] Figure 2 This is an exploded schematic diagram of a heat exchanger provided in one embodiment of the present application;

[0019] Figure 3 This is a bottom perspective view of a mounting plate provided in one embodiment of the present application;

[0020] Figure 4 yes Figure 1 Sectional view after cutting along the section line AA;

[0021] Figure 5 yes Figure 1 Cross-sectional view after cutting along cutting line BB;

[0022] Figure 6 yes Figure 5 A partial enlarged view of the middle C area. DETAILED DESCRIPTION

[0023] In order to facilitate understanding of the present application, the present application is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or there can be one or more centered elements therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements therebetween. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this specification are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used in this specification have the same meanings as those commonly understood by those skilled in the art to which this application belongs. The terms used in this specification and in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" as used in this specification includes any and all combinations of one or more of the relevant listed items.

[0025] In some embodiments, see Figures 1 to 4 The heat exchanger 100 includes a heat exchanger body 1, a first flow guide tube 2, and a mounting plate 4. The heat exchanger body 1 is provided with a heat exchange channel 10 for passing a heat exchange medium. The mounting plate 4 is fixed to the heat exchanger body 1. The heat exchange medium flows into or out of the heat exchange channel 10 through the first flow guide tube 2, and the heat exchange medium completes heat exchange in the heat exchange channel 10.

[0026] In some embodiments, the heat exchange channel 10 has one end for the heat exchange medium to enter the heat exchange channel 10, and another end for the heat exchange medium to exit the heat exchange channel 10. The heat exchange medium exchanges heat while flowing through the heat exchange channel 10.

[0027] In some embodiments, see Figure 2 and Figure 3The mounting plate 4 is provided with a first through-hole 43. A first groove 41 is provided on the surface of the mounting plate 4 facing the heat exchanger body 1 along the extension direction of the first through-hole 43. The first groove 41 communicates with the first through-hole 43. The first flow guide tube 2 is disposed through the first through-hole 43 and communicates with the heat exchanger body 1. The first flow guide tube 2 communicates with one end of the heat exchange channel 10. A first boss 21 is provided on the outer wall of the end of the first flow guide tube 2 communicating with the heat exchange channel 10. At least a portion of the first boss 21 is located in the first groove 41. The first boss 21 abuts against both the heat exchanger body 1 and the mounting plate 4, thereby securing the first flow guide tube 2. Compared with the expansion connection method, on the one hand, the embodiment of the present application fixes the first flow guide tube 2 by jointly clamping the first flow guide tube 2 through the mounting plate 4 and the heat exchanger body 1, and the cooperation between the first boss 21 and the first groove 41 is conducive to improving the verticality and position accuracy of the installation of the first flow guide tube 2. On the other hand, it replaces the expansion process, which is conducive to reducing the difficulty of installation and improving processing efficiency. On the third hand, replacing the expansion process is also conducive to reducing the possibility of deformation of the first flow guide tube 2, thereby reducing the risk of deformation of the first flow guide tube 2, enhancing the stability of the connection, and improving the aesthetic effect.

[0028] In some embodiments, the mounting plate 4 can be fixed to the heat exchanger body 1 by welding, bonding, riveting or bolting.

[0029] In some embodiments, the heat exchange medium flows into the heat exchange channel 10 from the first flow guide pipe 2 and flows out of the heat exchange channel 10 from another flow guide pipe or other outlet components.

[0030] In some embodiments, the first groove 41 and the first boss 21 are both annular in shape. The annular first boss 21 is arranged around the first guide tube 2, which is beneficial to increasing the volume and range of the first boss 21 in the first groove 41, and is beneficial to further improving the effect of the first groove 41 in restricting the movement of the first boss 21, thereby improving the stability of the connection of the first guide tube 2.

[0031] In some embodiments, for the heat exchanger body 1, please refer to Figure 2 and Figure 4 The heat exchanger body 1 includes a plurality of guide plates 11, which are arranged in parallel and spaced apart. The guide plates 11 are interconnected to form heat exchange channels 10 and medium channels 12, respectively. The heat exchange channels 10 and medium channels 12 are not interconnected. The heat exchange channels 10 and medium channels 12 are distributed on both sides of the heat exchanger body 1, or are staggered with each other. The heat exchange channels 10 are used to flow heat exchange medium, and the medium channels 12 are used to flow cooling medium. The temperatures of the heat exchange medium and the cooling medium are different. Both the heat exchange medium and the cooling medium flow on the guide plates 11 and transfer heat through the guide plates 11 to complete heat exchange.

[0032] In some embodiments, the heat exchanger body 1 is provided with a second groove 111. Along the depth direction of the second groove 111, one end of the heat exchange channel 10 communicates with the second groove 111. A portion of the first boss 21 is located in the first groove 41, while another portion of the first boss 21 is located in the second groove 111. The other portion of the first boss 21 is located in the second groove 111. This, on the one hand, helps limit the movement of the first boss 21 relative to the heat exchanger body 1, further enhancing the stability of the connection of the first flow conduit 2. On the other hand, in related art, the expansion joint connection method requires the provision of an additional retaining structure to define the relative position between the mounting plate 4 and the heat exchanger body 1. In this embodiment, a portion of the first boss 21 is located in the first groove 41, while another portion of the first boss 21 is located in the second groove 111. This collectively defines the relative positional relationship between the first flow conduit 2, the mounting plate 4, and the heat exchanger body 1. Compared to the expansion joint connection method, this eliminates the need for an additional retaining structure, improving the stability of the connection of the first flow conduit 2 while also further enhancing installation efficiency and reducing processing costs.

[0033] In some embodiments, the surface of the topmost guide plate 11 facing away from the adjacent guide plate 11 is set as a connecting surface 110, the port of one end of the heat exchange channel 10 for the heat exchange medium to flow in or out is located on the connecting surface 110, and the second groove 111 is set on the connecting surface 110.

[0034] The port at one end of the heat exchange channel 10 for the heat exchange medium to flow in or out can be understood as a hole or opening provided at one end of the heat exchange channel 10, through which the heat exchange medium can flow in or out of the heat exchange channel.

[0035] In some embodiments, the heat exchange channel 10 includes a port for the heat exchange medium to flow in and a port for the heat exchange medium to flow out.

[0036] In some embodiments, the second groove 111 is annular in shape.

[0037] See also Figure 5 and Figure 6 When the first flow guide tube 2 is installed and fixed to the heat exchanger body 1 through the mounting plate 4, the first groove 41 and the second groove 111 are arranged opposite to each other. The heat exchanger body 1 and the mounting plate 4 clamp and fix the first boss 21 from top to bottom. Part of the first boss 21 is located in the first groove 41, and the other part of the first boss 21 is located in the second groove 111. The first groove 41 and the second groove 111 limit the movement of the first flow guide tube 2, ensuring the stable connection of the first flow guide tube 2 on the heat exchanger body 1 with a simple structure, reducing loosening caused by fluid pressure or vibration.

[0038] It should be noted that the heat exchange medium and the cooling medium can be the same or different types of fluids, including but not limited to water, oil, gas, and chemical solutions, depending on the specific application scenario and heat exchange requirements. For example, in a battery cooling system, the heat exchange medium can be the coolant circulating within the battery pack to absorb the heat generated during battery operation, while the cooling medium can be the coolant of an external cooling system, which removes heat from the battery coolant through the heat exchanger 100 to ensure that the battery pack continues to operate within a suitable temperature range. In addition, the flow direction of the heat exchange medium and the cooling medium can be parallel flow, countercurrent flow, or cross flow.

[0039] In some embodiments, the thickness of the first boss 21 is greater than the depth of the first groove 41 , and the thickness of the first boss 21 is greater than the depth of the second groove 111 , to ensure that the first boss 21 has engaging portions with both the first groove 41 and the second groove 111 .

[0040] In some embodiments, the thickness of the first boss 21 is less than or equal to the sum of the depths of the first groove 41 and the second groove 111 , preventing the first boss 21 from lifting the mounting plate 4 and ensuring that the mounting plate 4 can fit tightly against the connection surface 110 of the heat exchanger body 1 .

[0041] In some embodiments, the first boss 21 is welded to the bottom of the second groove 111 of the heat exchanger body 1. Specifically, an annular first welding piece 5 is disposed between the first boss 21 and the bottom of the second groove 111. The melting point of the first welding piece 5 is lower than that of both the heat exchanger body 1 and the first flow conduit 2. During the preparation of the heat exchanger 100, the first welding piece 5 is melted by heating, thereby filling the slight gap between the first boss 21 and the second groove 111. After cooling, a solid first weld layer is formed, which welds the first boss 21 to the bottom of the second groove 111, further enhancing the sealing and structural strength between the first flow conduit 2 and the heat exchanger body 1.

[0042] In an embodiment in which a second groove 111 is provided and the first boss 21 is welded and fixed to the second groove 111 of the heat exchanger body 1 through a first welding piece 5, the second groove 111 is conducive to the placement of the first welding piece 5 and plays a role in limiting the movement of the first welding piece 5, which is conducive to reducing the possibility of welding piece displacement during welding, thereby helping to improve the welding effect.

[0043] It can be understood that the heat exchanger 100 is not limited to the above structure. In other embodiments, the heat exchanger 100 can be a shell and tube heat exchanger, wherein the heat exchanger body 1 includes a shell and a heat exchange tube, a heat exchange channel is formed inside the heat exchange tube, and a medium channel is formed outside the heat exchange tube. The heat exchange medium in the heat exchange channel and the cooling medium in the medium channel transfer heat through the tube wall of the heat exchange tube to complete heat exchange.

[0044] In some embodiments, please refer to Figures 1 to 4 The heat exchange channel 10 includes a port for heat exchange medium to flow in and a port for heat exchange medium to flow out. The ports at both ends of the heat exchange channel 10 for heat exchange medium to flow in and out are both located on the surface of the heat exchanger body 1 facing the mounting plate along the depth direction of the first groove 41.

[0045] In some embodiments, as Figure 2 The guide plate 11 at the top layer of the plate heat exchanger 100 is provided with two through holes to form ports at both ends of the heat exchange channel 10 .

[0046] In some embodiments, the heat exchanger 100 further includes a second flow conduit 3, which is secured to the heat exchanger body 1 via a mounting plate 4. Specifically, the mounting plate 4 further includes a second through-hole 44. A third groove 42 is provided on the surface of the mounting plate 4 facing the heat exchanger body 1, extending along the direction of the second through-hole 44. The third groove 42 communicates with the second through-hole 44. The second flow conduit 3 passes through the second through-hole, with one end of the second flow conduit 3 communicating with the other end of the heat exchange channel 10. A second boss 31 is provided on the outer wall of the end of the second flow conduit 3 communicating with the heat exchange channel 10. At least a portion of the second boss 31 is located in the third groove 42, and the second boss 31 abuts against both the heat exchanger body 1 and the mounting plate 4.

[0047] In some embodiments, the heat exchange medium flows into the heat exchange channel 10 from the first flow conduit 2 and flows out of the heat exchange channel 10 from the second flow conduit 3. In other embodiments, the heat exchange medium flows out of the heat exchange channel 10 from the first flow conduit 2 and flows into the heat exchange channel 10 from the second flow conduit 3.

[0048] In some embodiments, the third groove 42 and the second boss 31 are both annular in shape. The annular second boss 31 is arranged around the second guide tube 3, which is beneficial to increasing the volume and range of the second boss 31 in the third groove 42, and is beneficial to further improving the effect of the third groove 42 in restricting the movement of the second boss 31, thereby improving the stability of the connection of the second guide tube 3.

[0049] In some embodiments, see Figure 2 、 Figure 5 and Figure 6A fourth groove 112 is provided on the connection surface 110 of the heat exchanger body 1. Along the depth direction of the fourth groove 112, the port at the other end of the heat exchange channel 110 communicates with the fourth groove 112. Optionally, the fourth groove 112 may be annular in shape. The third groove 42 and the fourth groove 112 clamp the second boss 31 from above and below, with a portion of the second boss 31 located in the third groove 42 and the remaining portion of the second boss 31 located in the fourth groove 112, thereby stably connecting the second flow conduit 3 to the heat exchanger body 1. Furthermore, since both the first flow conduit 2 and the second flow conduit 3 are connected to the connection surface 110 of the heat exchanger body 1, the cooperation between the two grooves and the boss further defines the relative position between the mounting plate 4 and the connection surface 110. This eliminates the need for a separate positioning structure, and only requires a single mounting plate 4 to simultaneously secure the first and second flow conduits 2 and 3. This simplifies the assembly process of the heat exchanger 100 and reduces manufacturing costs.

[0050] In some embodiments, the thickness of the second boss 31 is greater than the depth of the third groove 42 , and the thickness of the second boss 31 is greater than the depth of the fourth groove 112 , to ensure that the second boss 31 has engaging portions with both the third groove 42 and the fourth groove 112 .

[0051] In some embodiments, the thickness of the second boss 31 is less than or equal to the sum of the depths of the third groove 42 and the fourth groove 112 , so as to prevent the second boss 31 from lifting the mounting plate 4 .

[0052] In some embodiments, the second boss 31 is welded to the bottom of the fourth groove 112 of the heat exchanger body 1. Specifically, an annular second welding tab 6 is disposed between the second boss 31 and the bottom of the fourth groove 112. The melting point of the second welding tab 6 is lower than that of both the heat exchanger body 1 and the second flow conduit 3. During the preparation of the heat exchanger 100, the second welding tab 6 is melted by heating, thereby filling the slight gap between the second boss 31 and the fourth groove 112. After cooling, a solid first weld layer is formed, which secures the second boss 31 to the bottom of the fourth groove 112, further enhancing the sealing and structural strength between the second flow conduit 3 and the heat exchanger body 1.

[0053] It is understood that the shapes of the first groove 41 and the second groove 111 match the shape of the first boss 21, and the shapes of the third groove 42 and the fourth groove 112 match the shape of the second boss 31. The shapes of the first boss 21 and the second boss 31 depend on the shapes of the first flow conduit 2 and the second flow conduit 3, respectively. The cross-section of the first flow conduit 2 or the second flow conduit 3 can be circular, rectangular, or other shapes, preferably circular.

[0054] In some embodiments, see Figure 2 and Figure 4The ports at both ends of the medium channel 12, for the inlet and outlet of the cooling medium, are located on the connection surface 110 and are respectively connected to the third and fourth flow conduits 7 and 8. Optionally, the cooling medium flows from the third flow conduit 7 into the medium channel 12, completes heat exchange in the medium channel 12, and then flows out of the fourth flow conduit 8. The third and fourth flow conduits 7 and 8 can be secured to the heat exchanger body 1 via screws, or by providing grooves and bosses on both the mounting plate 4 and the connection surface 110 to secure the flow conduit to the heat exchanger body 1. Further sealing and securing can be achieved by welding.

[0055] In the embodiment of the present application, the heat exchanger 100 is provided with a first through hole 43 and a first groove 41 on the mounting plate 4, and a first boss 21 is provided on the outer wall of one end of the first flow guide tube 2 connected to the heat exchange channel 10. The first flow guide tube 2 passes through the first through hole 43, and the first boss 21 is abutted against the heat exchanger body 1 and the mounting plate 4, thereby achieving a stable installation of the first flow guide tube 2 on the heat exchanger body 1 and avoiding the risk of deformation of the flow guide tube due to expansion connection.

[0056] The present application also provides an embodiment of a heat exchange system, which includes the above-mentioned heat exchanger 100. The structure and function of the heat exchanger 100 can be found in the above-mentioned embodiment and will not be described in detail here.

[0057] The present application also provides a vehicle embodiment, which includes the above-mentioned heat exchange system.

[0058] It should be noted that the preferred embodiments of the present application are given in the specification and drawings of this application. However, the present application can be implemented in many different forms and is not limited to the embodiments described in this specification. These embodiments are not intended to be additional limitations on the content of this application. The purpose of providing these embodiments is to make the understanding of the disclosure of this application more thorough and comprehensive. In addition, the above-mentioned technical features can be combined with each other to form various embodiments not listed above, which are all considered to be within the scope of the description of this application. In some embodiments, it is possible for ordinary technicians in this field to make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the claims attached to this application.

Claims

1. A heat exchanger, characterized in that: include: The heat exchanger body is provided with a heat exchange channel, wherein the heat exchange channel is used for passing the heat exchange medium; a mounting plate fixed to the heat exchanger body, the mounting plate being provided with a first through hole, and a first groove being provided on a surface of the mounting plate facing the heat exchanger body along an extension direction of the first through hole, the first groove being in communication with the first through hole; A first flow guide tube is passed through the first through hole, one end of the first flow guide tube is connected to one end of the heat exchange channel, and a first boss is provided on the outer side wall of the end of the first flow guide tube connected to the heat exchange channel. At least a portion of the first boss is located in the first groove, and the first boss is against both the heat exchanger body and the mounting plate.

2. The heat exchanger according to claim 1, characterized in that The first groove and the first boss are both annular in shape, and the annular first boss is disposed around the first flow guide pipe.

3. The heat exchanger according to claim 1, characterized in that The heat exchanger body is provided with a second groove. Along the depth direction of the second groove, one end of the heat exchange channel is connected to the second groove. Part of the first boss is located in the first groove, and the other part of the first boss is located in the second groove.

4. The heat exchanger according to claim 3, characterized in that , The first boss is welded and fixed to the bottom of the second groove of the heat exchanger body.

5. The heat exchanger according to claim 3, characterized in that The thickness of the first boss is greater than the depth of the first groove, and the thickness of the first boss is greater than the depth of the second groove; and / or, The thickness of the first boss is less than or equal to the sum of the depth of the first groove and the depth of the second groove.

6. The heat exchanger according to any one of claims 1 to 5, characterized in that , The ports at both ends of the heat exchange channel for the heat exchange medium to enter and exit are both located on the surface of the heat exchanger body facing the mounting plate along the depth direction of the first groove; The mounting plate is further provided with a second through hole, and a third groove is provided on a surface of the mounting plate facing the heat exchanger body along an extension direction of the second through hole, the third groove being connected to the second through hole; The first flow guide pipe is connected to one end of the heat exchange channel. The heat exchanger also includes a second flow guide pipe, which is passed through the second through hole. One end of the second flow guide pipe is connected to the other end of the heat exchange channel. A second boss is provided on the outer side wall of the end of the second flow guide pipe connected to the heat exchange channel. At least a portion of the second boss is located in the third groove. The second boss is against both the heat exchanger body and the mounting plate.

7. The heat exchanger according to claim 6, characterized in that The heat exchanger body is provided with a fourth groove. Along the depth direction of the fourth groove, the port at the other end of the heat exchange channel is connected to the fourth groove. Part of the second boss is located in the third groove, and another part of the second boss is located in the fourth groove.

8. The heat exchanger according to claim 7, characterized in that The second boss is welded and fixed to the bottom of the fourth groove of the heat exchanger body; The thickness of the second boss is greater than the depth of the third groove, and the thickness of the first boss is greater than the depth of the fourth groove; and / or, The thickness of the second boss is less than or equal to the sum of the depth of the third groove and the depth of the fourth groove.

9. A heat exchange system, characterized in that: Comprising the heat exchanger according to any one of claims 1 to 8.

10. A means of transport, characterized in that: Comprising the heat exchange system as claimed in claim 9.

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