Heat exchanger

Abstract

The utility model relates to heat exchanger, including heat exchange core and mounting panel, and mounting panel has mounting hole, heat exchanger still has bushing, and bushing has through -hole, and through -hole at least partial alignment with mounting hole, bushing is welded with mounting panel, in this way, and mounting panel and bushing weld after forming integral structure, due to the through -hole of bushing at least partial alignment with the mounting hole of mounting panel, make bushing arrange in the mounting hole part of mounting panel, and further can enhance the rigidity of mounting panel in the mounting hole part, thereby resist deformation.

Description

Technical Field

[0001] This utility model relates to the field of thermal management technology, and in particular to a heat exchanger for a refrigeration system. Background Technology

[0002] Plate heat exchangers typically consist of multiple plates stacked together, with inter-plate channels formed between adjacent plates for fluid flow. Fluid flows on both sides of the plates to achieve heat exchange between the plates. Utility Model Content

[0003] In related technologies, a heat exchanger includes a heat exchange core and a mounting plate. The heat exchange core is assembled to the vehicle body via the mounting plate. The mounting plate has multiple mounting holes. When the heat exchanger is assembled or in operation, the part of the mounting plate located at the mounting holes is prone to deformation.

[0004] Therefore, it is necessary to provide a heat exchanger that addresses the above problems and aims to reduce the deformation of the mounting plate at the mounting hole.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A heat exchanger includes a heat exchange core and a mounting plate having mounting holes; the heat exchanger also includes a bushing having through holes that are at least partially aligned with the mounting holes.

[0007] The bushing is welded to the mounting plate;

[0008] Alternatively, the heat exchanger may also have fasteners that pass through the mounting holes and the through holes and are connected to the vehicle body components, and the bushing abuts against the mounting plate.

[0009] When the bushing is welded to the mounting plate, the heat exchanger of the present application includes a mounting plate and a bushing. After the mounting plate and the bushing are welded together, they form an integral structure. Since the through hole of the bushing is at least partially aligned with the mounting hole of the mounting plate, the bushing is arranged at the mounting hole of the mounting plate, which can enhance the rigidity of the mounting plate at the mounting hole and thus resist the deformation of the mounting plate.

[0010] When the bushing abuts against the mounting plate, the heat exchanger of the present application includes a mounting plate and a bushing. The bushing and the mounting plate are fixedly connected by fasteners, and the mounting plate abuts against the bushing. Since the through hole of the bushing is at least partially aligned with the mounting hole of the mounting plate, the bushing is arranged at the mounting hole of the mounting plate, which can enhance the rigidity of the mounting plate at the mounting hole, thereby resisting the deformation of the mounting plate. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the heat exchanger according to the first embodiment of the present invention;

[0012] Figure 2 for Figure 1 A schematic diagram of the structure after the explosion;

[0013] Figure 3 for Figure 1 A schematic diagram of the mounting plate structure;

[0014] Figure 4 for Figure 1 A schematic diagram of the cross-sectional structure of the mounting plate and bushing after they are stacked together;

[0015] Figure 5 for Figure 4 An enlarged structural diagram at point A;

[0016] Figure 6 for Figure 1 A schematic diagram of a heat exchanger equipped with multiple bushings;

[0017] Figure 7 for Figure 6 A schematic diagram of the first embodiment after the explosion of two adjacent bushings;

[0018] Figure 8 for Figure 6 A schematic diagram of the second embodiment after the explosion of two adjacent bushings;

[0019] Figure 9 for Figure 1 A schematic diagram of the structure in which the mounting plate and bushing mate;

[0020] Figure 10 for Figure 6 A schematic diagram of another implementation method after two adjacent bushings are fitted together.

[0021] Figure 11 for Figure 1 A schematic diagram of another embodiment after the mounting plate and bushing are assembled;

[0022] Figure 12 for Figure 10 A magnified structural diagram of point B;

[0023] Figure 13 for Figure 1 A schematic diagram of the heat exchange core structure;

[0024] Figure 14 This is a schematic diagram of the second embodiment of the heat exchanger of this utility model;

[0025] Figure 15 for Figure 14 A cross-sectional structural diagram of the mounting plate and bushing after assembly.

[0026] Reference numerals: 1. Heat exchanger; 2. Heat exchanger core; 3. Mounting plate; 4. Mounting hole; 5. Bushing; 6. Through hole; 7. First plate surface; 8. Second plate surface; 9. First plate; 10. Second plate; 11. First protrusion; 12. First recess; 13. Second bushing; 14. Third bushing; 15. First positioning post; 16. First blind hole; 17. First composite layer; 18. First bushing; 19. Second protrusion; 20. Second recess; 21. Second positioning post; 22. Second blind hole; 23. Second composite layer ; 24. Main body plate; 25. Lug; 26. Long side; 27. Short side; 28. First side; 29. ​​Second side; 30. End plate; 31. First fluid through hole; 32. First inlet; 33. First outlet; 34. Second inlet; 35. Second outlet; 36. Second fluid through hole; 37. First fluid inlet hole; 38. Second fluid outlet hole; 39. First fluid hole; 40. Second fluid hole; 41. First lug; 42. Second lug; 43. Third lug; 44. Fourth lug; 45. Fastener. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit its scope.

[0028] This embodiment discloses a heat exchanger 1, such as Figure 1 As shown, the heat exchanger 1 includes a heat exchange core 2, which has multiple inter-plate channels and multiple inter-plate flow channels. The inter-plate channels and inter-plate flow channels are isolated from each other and are arranged alternately. The fluid in the inter-plate channels and the fluid in the inter-plate flow channels exchange heat through the plates.

[0029] like Figures 1-5 ,as well as Figures 13-14 As shown, the heat exchanger 1 also includes a mounting plate 3 with mounting holes 4. The heat exchange core 2 is fixedly connected to the mounting plate 3, wherein the fixed connection includes welding. The heat exchanger 1 is mounted on the vehicle body via the mounting plate 3. The heat exchanger 1 also has a bushing 5, which is stacked on the mounting plate 3. The bushing 5 has a through hole 6, which is at least partially aligned with the mounting hole 4.

[0030] In some embodiments, the bushing 5 is welded to the mounting plate 3; after the mounting plate 3 and the bushing 5 are welded together, they form an integral structure. Since the through hole 6 of the bushing 5 is at least partially aligned with the mounting hole 4 of the mounting plate 3, the bushing 5 is arranged at the mounting hole 4 of the mounting plate 3, which can enhance the rigidity of the mounting plate 3 at the mounting hole 4, thereby resisting deformation.

[0031] In other embodiments, the heat exchanger 1 further includes a fastener 45 that passes through the mounting hole 4 and the through hole 6 and securely connects the bushing 5 to the mounting plate 3, with the bushing 5 abutting against the mounting plate 3; wherein the fastener 45 includes a screw or bolt. Since the through hole 6 of the bushing 5 is at least partially aligned with the mounting hole 4 of the mounting plate 3, the bushing 5 is arranged at the mounting hole 4 portion of the mounting plate 3, thereby enhancing the rigidity of the mounting plate 3 at the mounting hole 4 portion and thus resisting deformation of the mounting plate 3.

[0032] More specifically, the bushing 5 has a first plate surface 7 and a second plate surface 8. The first plate surface 7 is closer to the mounting plate 3 than the second plate surface 8. The first plate surface 7 and the second plate surface 8 are located on opposite sides of the bushing 5. The first plate surface 7 at least partially abuts or is welded to the mounting plate 3. Thus, the at least partial abutment or welding of the first plate surface 7 of the bushing 5 with the mounting plate 3 enhances the rigidity of the mounting plate 3 at the mounting hole 4, thereby reducing deformation of the mounting plate 3 at the mounting hole 4. In actual assembly, fasteners pass through the through hole 6 and the mounting hole 4 and are threadedly connected to the vehicle body component, allowing the mounting plate 3 to be mounted on the vehicle body component, thereby enabling the heat exchanger 1 to be mounted to the vehicle body component. The vehicle body component includes brackets for fixing the heat exchanger 1, which are mounted on the vehicle body.

[0033] In this embodiment, the thickness of the mounting plate 3 is generally not too large in order to reduce the overall weight of the heat exchanger 1. When the heat exchanger 1 is in operation, the mounting plate 3 may deform. In particular, the part of the mounting plate 3 located at the mounting hole 4 is prone to deformation. Adding a bushing 5 to the mounting hole 4 part of the mounting plate 3, with the first plate surface 7 of the bushing 5 abutting or welding to the mounting plate 3, can improve the deformation resistance of the local part of the mounting plate 3, thereby reducing the deformation of the mounting plate 3.

[0034] In addition, such as Figures 1-6 As shown, the depth of the fastener threaded connection to the vehicle body may vary at different mounting holes 4; by setting the bushing structure 5, the fastener can be raised, so that a uniform fastener can be used at each mounting hole 4, which facilitates assembly.

[0035] like Figures 1-5As shown, the heat exchange core 2 includes multiple stacked heat exchange plates, including a first plate 9 and a second plate 10. The first plate 9 and the second plate 10 are arranged alternately along the stacking direction of the heat exchange plates. There is an inter-plate channel between the first plate 9 and one of its adjacent second plates 10, in which a first fluid flows. There is also an inter-plate flow channel between the first plate 9 and another adjacent second plate 10, in which a second fluid flows. The inter-plate channel and the inter-plate flow channel are not connected. The first fluid in the inter-plate channel and the second fluid in the inter-plate flow channel achieve heat exchange through the plates. The direction perpendicular to the first plate surface 7 of the bushing 5 is defined as the first direction X. The first direction X is also consistent with the stacking direction of the heat exchange plates and is also perpendicular to the plate surface of the mounting plate 3.

[0036] like Figures 6-8 As shown, the heat exchanger 1 has at least two bushings 5, which are stacked along a first direction X, and the through holes 6 of the at least two bushings 5 ​​are aligned with each other. Fasteners pass sequentially through the through holes 6 of the bushings 5 ​​and the mounting holes 4 of the mounting plate 3, and are then threaded to the body parts, thereby mounting the heat exchanger 1 onto the body parts. In this way, the multiple bushings 5 ​​stacked along the first direction X increase the resistance to deformation and reduce deformation of the mounting plate 3. Furthermore, this design offers greater ease of assembly; assemblers can simply stack the bushings together to achieve assembly, significantly reducing assembly time. The number of bushings 5 ​​can be two, three, or more, depending on the operating conditions.

[0037] like Figures 6-8 As shown, when assembling the bushing 5, the through holes 6 of two adjacent bushings 5 ​​need to be aligned to allow fasteners to pass through. To improve assembly efficiency, a concave-convex structure can be provided between two adjacent bushings 5 ​​to achieve positioning of the two adjacent bushings 5. More specifically, one of the two adjacent bushings 5 ​​has a first protrusion 11, and the other of the two adjacent bushings 5 ​​has a first recess 12. The first protrusion 11 is embedded into the first recess 12 to achieve positioning of the two adjacent bushings 5. In this way, when two adjacent bushings 5 ​​are stacked, the first protrusion 11 of one bushing 5 is embedded into the first recess 12 of the other bushing 5, which can achieve rapid assembly of the two adjacent bushings 5, improve the assembly efficiency of the bushings 5, and thus improve the production efficiency of the heat exchanger 1. The structure of the first protrusion 11 and the first recess 12 includes, but is not limited to, the following two embodiments, as described in detail below:

[0038] In some implementations, exemplarily, such as Figures 6-7As shown, one of two adjacent bushings 5 ​​is defined as the second bushing 13, and the other of the two adjacent bushings 5 ​​is defined as the third bushing 14. The middle part of the second bushing 13 protrudes towards the mounting plate 3 to form a first protrusion 11, and the middle part of the third bushing 14 is recessed towards the mounting plate 3 to form a first recess 12. The first protrusion 11 of the second bushing 13 is embedded into the first recess 12 of the third bushing 14, which can realize the positioning of the second bushing 13 and the third bushing 14. By simply stacking the first protrusion 11 and the first recess 12, the second bushing 13 and the third bushing 14 can be quickly assembled, which greatly improves the assembly cycle.

[0039] In other implementations, exemplarily, such as Figure 6 and Figure 8 As shown, the first protrusion 11 of the second bushing 13 is the first positioning post 15, and the first recess 12 of the third bushing 14 is the first blind hole 16. The first positioning post 15 is embedded in the first blind hole 16, thereby achieving the positioning of the second bushing 13 and the third bushing 14. By simply stacking the first positioning post 15 and the first blind hole 16, the second bushing 13 and the third bushing 14 can be quickly fixed and positioned. The second bushing 13 has two first positioning holes, which are symmetrically arranged. Correspondingly, the third bushing 14 has two first blind holes 16, which are symmetrically arranged. As for the cross-sectional shape of the first positioning post 15 and the first blind hole 16, there are no particular restrictions, as long as the first positioning post 15 and the first blind hole 16 can be inserted, they can be square, circular, elliptical, or other shapes.

[0040] It should be noted that the first protrusion 11 of the second bushing 13 and the first recess 12 of the third bushing 14 are both formed by stamping, which is suitable for mass production and can reduce production costs. In addition, the extension depth of the first protrusion 11 along the first direction X is less than or equal to the extension depth of the first recess 12 along the first direction X, so as to reduce the occurrence of the second bushing 13 and the third bushing 14 not fitting together.

[0041] like Figure 9 As shown, at least one of two adjacent bushings 5 ​​has a first composite layer 17, which includes flux. The other of the two adjacent bushings 5 ​​is welded to the first composite layer 17. The two bushings 5 ​​are stacked, and after the first composite layer 17 is welded, a first welded part is formed. The first welded part is welded to the two adjacent bushings 5. That is, the two adjacent bushings 5 ​​are welded and fixed through the first composite layer 17. After the two adjacent bushings 5 ​​are welded, they form an integral structure, which can further improve the deformation resistance.

[0042] More detailed, such as Figure 9As shown, the first plate surface 7 side of the bushing 5 has a first composite layer 17, and the second plate surface 8 side of the bushing 5 also has a first composite layer 17. That is, both plates of the bushing 5 have a first composite layer 17. After two adjacent bushings 5 ​​are stacked, the first composite layer 17 and the second composite layer 23 are welded together, thereby realizing the welding and fixing of the two adjacent bushings 5. The fact that both plates of the bushing 5 have composite layers can improve the welding strength between the two adjacent bushings 5. Of course, the bushing 5 may only have a first composite layer 17 on one plate surface side. For example, the bushing 5 has a first composite layer 17 on the side with the first protrusion 11. The bushing 5 is only provided with a first composite layer 17 on one side. The two adjacent bushings 5 ​​are welded and fixed through a single layer of first composite layer 17. The bushing 5 with a single layer of composite layer structure can reduce production costs.

[0043] like Figures 1-5 As shown, when assembling the bushing 5 and the mounting plate 3, it is necessary to align the through hole 6 of the bushing 5 and the mounting hole 4 of the mounting plate 3 to allow fasteners to pass through. To improve assembly efficiency, a concave-convex positioning structure can also be provided between the bushing 5 and the mounting plate 3 to achieve positioning of the bushing 5 and the mounting plate 3. More specifically, the bushing 5 includes a first bushing 18, which is disposed adjacent to the mounting plate 3; one of the first bushing 18 and the mounting plate 3 has a second protrusion 19, and the other of the first bushing 18 and the mounting plate 3 has a second recess 20, with the second protrusion 19 embedded in the second recess 20. Thus, the second protrusion 19 of the first bushing 185 is embedded in the second recess 20 of the mounting plate 3, thereby realizing the assembly of the first bushing 18 and the mounting plate 3, improving the assembly efficiency of the first bushing 18 and the mounting plate 3, and thus improving the production efficiency of the heat exchanger 1. The structure of the second protrusion 19 and the second recess 20 includes, but is not limited to, the following two embodiments, as described in detail below:

[0044] In some implementations, exemplarily, such as Figures 1-5 As shown, the middle part of the first bushing 18 protrudes towards the mounting plate 3 to form a second protrusion 19, and the middle part of the mounting plate 3 is recessed away from the first bushing 18 to form a second recess 20. The second protrusion 19 of the first bushing 18 is embedded into the second recess 20 of the mounting plate 3, which can realize the positioning of the first bushing 18 and the mounting plate 3. By simply stacking the first bushing 18 and the mounting plate 3 through the positioning of the second protrusion 19 and the second recess 20, the assembly of the first bushing 18 and the mounting plate 3 can be realized, which greatly improves the assembly cycle.

[0045] In other implementations, exemplarily, such as Figure 4 , Figure 5 and Figure 12As shown, the second protrusion 19 of the first bushing 18 is the second positioning post 21, and the second recess 20 of the mounting plate 3 is the second blind hole 22. The second positioning post 21 is embedded in the second blind hole 22, which realizes the positioning of the first bushing 18 and the mounting plate 3. By simply stacking the first bushing 18 and the mounting plate 3 through the positioning of the second positioning post 21 and the second blind hole 22, the assembly of the first bushing 18 and the mounting plate 3 can be achieved, which greatly improves the assembly cycle. The first bushing 18 has two second positioning holes, which are symmetrically arranged. Correspondingly, the mounting plate 3 has two second blind holes 22, which are symmetrically arranged. As for the shape of the second positioning post 21 and the second blind hole 22, there is no particular limitation, as long as the second positioning post 21 and the second blind hole 22 can be inserted, they can be square, round, oval or other shapes.

[0046] It should be noted that the second protrusion 19 of the first bushing 18 and the second recess 20 of the mounting plate 3 are both formed by stamping, which is suitable for mass production and can reduce production costs. In addition, the extension depth of the second protrusion 19 along the first direction X is less than or equal to the extension depth of the second recess 20 along the first direction X, so as to reduce the occurrence of the first bushing 185 and the mounting plate 3 not fitting together.

[0047] like Figure 5 As shown, the first bushing 18 has a second composite layer 23, which includes flux. The second composite layer 23 is welded to the mounting plate 3. Thus, the first bushing 18 is stacked onto the mounting plate 3, and the second composite layer 23 of the first bushing 18 is in contact with the mounting plate 3. After welding, the second composite layer 23 forms a second welded part, which welds the first bushing 18 and the mounting plate 3 together. That is, the first bushing 18 and the mounting plate 3 are welded and fixed together through the second composite layer 23. After welding, the first bushing 18 and the mounting plate 3 form an integral structure, which further improves the resistance to deformation.

[0048] It should be noted that the two bushings 5 ​​stacked on top of each other can have the same or different structures; of course, the bushing 5 adjacent to the mounting plate 3 can have the same or different structure as the other bushings 5; when the structure of each bushing 5 is the same, the same stamping die can be used for production, thus reducing production costs. In addition, each bushing 5 has a composite layer on only one side of its plate surface, and the side of the bushing 5 closest to the mounting plate 3 has a composite layer. After multiple bushings 5 ​​are stacked along the first direction X, they are then stacked onto the mounting plate 3. After welding, adjacent bushings 5 ​​are welded and fixed through the first composite layer 17, and the mounting plate 3 and bushings 5 ​​are welded and fixed through the second composite layer 23.

[0049] like Figures 1-3 as well as Figure 12As shown, the mounting plate 3 has a main plate portion 24, the heat exchange core 2 is welded to the main plate portion 24, and the mounting plate 3 also has a plurality of lugs 25. The lugs 25 are fixedly connected to the main plate portion 24 or are an integral structure. Preferably, the lugs 25 are an integral structure with the main plate portion 24. The lugs 25 have mounting holes 4 and protrude relative to the main plate portion 24. The bushing 5 is stacked to the lugs 25, and the first plate surface 7 of the bushing 5 is welded to the lugs 25. In this way, the main plate portion 24 is fixed to the vehicle body part by the lugs 25, which can save raw materials and reduce manufacturing costs.

[0050] like Figure 12 As shown, the mounting plate 3 has a second direction Y, and the plurality of lugs 25 include two sets of lugs 25, which are symmetrically arranged relative to the main plate portion 24. This allows for more even force distribution at the four corners of the mounting plate 3, reducing deformation caused by uneven force distribution. For example, the main plate portion 24 is rectangular, having a long side 26 and a short side 27, with the extension direction of the short side 27 being the second direction Y. The mounting plate 3 has four lugs 25. Along the second direction Y of the mounting plate 3, the mounting plate 3 has a first side 28 and a second side 29, located on opposite sides of the mounting plate 3. Two lugs 25 are located on the first side 28 of the mounting plate 3, and the other two lugs 25 are located on the second side 29 of the mounting plate 3, with the two lugs 25 on the first side 28 and the two lugs 25 on the second side 29 symmetrically arranged.

[0051] It should be noted that the mounting plate 3 may have bushing 5 structures at two lugs 25 or at all four lugs 25; for example, two of the four lugs 25 of the mounting plate 3 have bushing 5, and the two lugs 25 are symmetrically arranged along the second direction Y; or, all four lugs 25 of the mounting plate 3 have bushing 5 structures.

[0052] like Figure 5 As shown, the thickness of bushing 5 affects its resistance to deformation; the greater the thickness of bushing 5, the greater its resistance to deformation. Along the first direction X, the thickness of bushing 5 is greater than or equal to the thickness of mounting plate 3. This gives bushing 5 higher strength, thereby improving its resistance to deformation.

[0053] like Figures 12-13As shown, the heat exchange core 2 has an end plate 30, which is close to and welded to the mounting plate 3. The end plate 30 has a first fluid through hole 31 through which fluid enters and exits the heat exchange core 2. The first fluid through hole 31 includes an inlet and an outlet. The inlet includes a first inlet 37, and the outlet includes a first outlet 38. The heat exchange core 2 has a first channel and a second channel. The first inlet 37, the first channel, the inter-plate channel, the second channel, and the first outlet 38 are interconnected. The first fluid flows sequentially through the first inlet 37, the first channel, and the inter-plate channel. The heat exchange core 2 has a first fluid channel and a second fluid channel. The second inlet 39, the inter-plate channel, the second fluid channel, and the second outlet 40 are interconnected. The first fluid flows sequentially through the second inlet 39, the first fluid channel, the inter-plate channel, and the second fluid channel, and finally flows out from the second outlet 40. The first fluid and the second fluid can be the same fluid or two different fluids. The first fluid in the inter-plate channel and the second fluid in the inter-plate channel achieve heat exchange through the plates.

[0054] like Figures 12-13 As shown, the main body plate 24 is welded to the end plate 30. The main body plate 24 has a second fluid through hole 36, which is at least partially aligned with the first fluid through hole 31. More specifically, the main body plate 24 has a substrate surface, and the projection of the wall forming the second fluid through hole 36 onto the substrate surface is the same as the projection of the wall forming the first fluid through hole 31 onto the substrate surface. The second fluid through hole 36 is partially aligned with the first fluid through hole 31. When the heat exchanger 1 is in operation, fluid enters the interior of the heat exchanger 1 through the second fluid through hole 36. Since the second fluid through hole 36 is partially aligned with the first fluid through hole 31, the wall forming the second fluid through hole 36 coincides with the wall forming the first fluid through hole 31. The fluid flow will impact the main body plate 24, which may deform and pull the lug 25. The lug 25 deforms, and the bushing 5 is stacked on the lug 25 to reduce the deformation of the lug 25.

[0055] like Figures 12-13As shown, the second fluid through-hole 36 includes a first fluid inlet 32 ​​and a second fluid outlet 33. The first fluid inlet 32 ​​is connected to the first inlet 37, and the second fluid outlet 33 is connected to the first outlet 38. Fluid enters the interplate channel of the heat exchanger 1 through the first fluid inlet 32 ​​of the mounting plate 3 and the first inlet 37 of the end plate 30, and then flows out through the first outlet 38 of the end plate 30 and the second fluid outlet 33 of the mounting plate 3. The second fluid through-hole 36 also includes a first fluid hole 34 and a second fluid hole 35. The first fluid hole 34 is connected to the second inlet 39, and the second fluid hole 35 is connected to the second outlet 40. Fluid enters the interplate channel of the heat exchanger 1 through the first fluid hole 34 of the mounting plate 3 and the second inlet 39 of the end plate 30, and then flows out through the second outlet 40 of the end plate 30 and the second fluid hole 35 of the mounting plate 3.

[0056] In this embodiment, as Figures 12-13 As shown, two of the four lugs 25 of the mounting plate 3 have bushings 5. The first inlet 37 is a water-side inlet, and the first outlet 38 is a water-side outlet. The lugs 25 include a first lug 41, a second lug 42, a third lug 43, and a fourth lug 44. The first lug 41 and the second lug 42 are located on the first side 28 of the mounting plate 3, and the third lug 43 and the fourth lug 44 are located on the second side 29 of the mounting plate 3. The first lug 41 and the third lug 43 both have bushings 5, while the second lug 42 and the fourth lug 44 do not have bushings 5. This increases the deformation resistance of the first lug 41 and the second lug 42. Alternatively, bushings 5 ​​can be provided on the lugs 25 near the agent-side inlet, that is, the second lug 42 and the fourth lug 44 both have bushings 5, while the first lug 41 and the third lug 43 do not have bushings 5.

[0057] In addition, such as Figures 1-6 As shown, the depth of the fastener threaded connection to the vehicle body may differ at different lugs 25. For example, the thread depth at the first lug 41 and the second lug 42 is lower than that at the third lug 43 and the fourth lug 44. Taking a screw as an example, the screw includes a head and a shank with threads. For the same screw, after assembly, part of the shank of the screw at the first lug 41 and the second lug 42 will be exposed outside the through hole 6. By setting a bushing 5, the screw can be raised, so that a uniform fastener can be used at each lug 25, which is convenient for assembly.

[0058] The technical features of the above-described technical solutions can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above-described technical solutions are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0059] The above-described embodiments are merely examples of several implementations of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications without departing from the concept of this utility model, and these modifications all fall within the protection scope of this utility model.

Claims

1. A heat exchanger, characterized in that, The heat exchanger (1) includes a heat exchange core (2) and a mounting plate (3), the mounting plate (3) having mounting holes (4); the heat exchanger (1) also has a bushing (5) having a through hole (6), the through hole (6) being at least partially aligned with the mounting holes (4); The bushing (5) is welded to the mounting plate (3); Alternatively, the heat exchanger (1) may also have a fastener (45) by which the bushing (5) is fixedly connected to the mounting plate (3) and the bushing (5) abuts against the mounting plate (3).

2. The heat exchanger according to claim 1, characterized in that, The bushing (5) has a first plate (7) which is at least partially welded to the mounting plate (3).

3. The heat exchanger according to claim 2, characterized in that, The direction perpendicular to the first plate surface (7) is defined as the first direction X; the heat exchanger (1) has at least two bushings (5), which are stacked along the first direction X.

4. The heat exchanger according to claim 3, characterized in that, One of two adjacent bushings (5) has a first protrusion (11) and the other of two adjacent bushings (5) has a first recess (12), the first protrusion (11) being inserted into the first recess (12).

5. The heat exchanger according to claim 3 or 4, characterized in that, At least one of two adjacent bushings (5) has a first composite layer (17) which welds the two adjacent bushings (5).

6. The heat exchanger according to any one of claims 2 to 5, characterized in that, The bushing (5) includes a first bushing (18) which is disposed adjacent to the mounting plate (3); one of the first bushing (18) and the mounting plate (3) has a second protrusion (19) and the other of the first bushing (18) and the mounting plate (3) has a second recess (20), and the second protrusion (19) is embedded in the second recess (20).

7. The heat exchanger according to claim 6, characterized in that, The first bushing (18) has a second composite layer (23), which is welded to the mounting plate (3).

8. The heat exchanger according to any one of claims 2 to 7, characterized in that, The mounting plate (3) has a main plate portion (24) and a plurality of lugs (25) protruding relative to the main plate portion (24); the first plate surface (7) is welded to the lugs (25) and the lugs (25) have the mounting holes (4).

9. The heat exchanger according to any one of claims 1 to 7, characterized in that, Along the first direction X, the thickness of the bushing (5) is greater than or equal to the thickness of the mounting plate (3).

10. The heat exchanger according to claim 8, characterized in that, The heat exchange core (2) has an end plate (30) with a first fluid through hole (31); the main body plate (24) is welded to the end plate (30) and has a second fluid through hole (36) which is at least partially aligned with the first fluid through hole (31).

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