Heat exchanger

Abstract

The application discloses a heat exchanger, a collecting piece comprising a first main body part and a second main body part assembled together, and a heat exchange pipe connected with the first main body part. The second main body part is provided with a first recess part and a first through groove part in communication with each other, a first side wall of the first through groove part is connected with a bottom wall of the first recess part and a bottom wall of the first through groove part, and on a plane perpendicular to a length direction of the first collecting piece, a projection of the bottom wall of the first recess part extends along the length direction of the heat exchange pipe in a direction close to the heat exchange pipe and simultaneously extends in a direction away from a second side wall of the first through groove part. The bottom wall of the first recess part is arranged to be inclined relative to the length direction of the heat exchange pipe, so that when the heat exchanger is in a working state, the fluid flowing out of an inner cavity of the heat exchange pipe can be guided to flow to a groove cavity of the first through groove part, the phenomenon that the fluid impacts the bottom wall of the first recess part is improved, and the flow resistance in the first collecting piece is reduced.

Description

Technical Field

[0001] This application relates to the field of heat exchange technology, and more particularly to a heat exchanger. Background Technology

[0002] Heat exchangers, also known as heat exchangers, are widely used in heat exchange systems (such as air conditioning systems). Heat exchangers can be used for heat exchange between a heat exchange medium and outside air, or for heat exchange between two heat exchange media.

[0003] In related technologies, the manifold includes a first main body and a second main body. A heat exchange tube is connected to the first main body, and the second main body is provided with a through-slot for collecting fluid and a recess located beside and communicating with the through-slot. On a plane perpendicular to the length direction of the manifold, the bottom wall of the recess is parallel to the end face of the heat exchange tube. When the heat exchanger is applied to a system, some of the fluid flowing out of the heat exchange tube first impacts the bottom wall of the recess before flowing into the through-slot, increasing the flow resistance and hindering fluid flow. Summary of the Invention

[0004] In view of the above-mentioned problems in the related technologies, this application provides a heat exchanger that reduces the flow resistance in the first manifold.

[0005] To achieve the above objectives, this application adopts the following technical solution: a heat exchanger, including a first manifold and a heat exchange tube, wherein the first manifold includes a first main body and a second main body assembled together, and the heat exchange tube is sealed to the first main body;

[0006] The second main body includes a first through groove and a first recess. The extension direction of the first through groove is parallel to or coincides with the length direction of the first collector. The cavity of the first recess communicates with the cavity of the first through groove. The inner cavity of the heat exchange tube communicates with the cavity of the first recess and the cavity of the first through groove, respectively. The first through groove includes a bottom wall and a first side wall and a second side wall located on both sides of the bottom wall. The bottom wall of the first through groove is away from the heat exchange tube relative to the first side wall and the second side wall of the first through groove. The first side wall of the first through groove connects the bottom wall of the first recess and the bottom wall of the first through groove.

[0007] On a plane perpendicular to the length direction of the first collector, the projection of the first groove is located outside the projection of the first through groove. The projection of the bottom wall of the first groove extends from the projection of the first side wall of the first through groove along the length direction of the heat exchange tube in a direction close to the heat exchange tube, and at the same time extends in a direction away from the second side wall of the first through groove.

[0008] The second main body of this application is provided with a first recessed portion and a first through-slot portion that are interconnected. The first sidewall of the first through-slot portion is connected to the bottom wall of the first recessed portion and the bottom wall of the first through-slot portion. On a plane perpendicular to the length direction of the first manifold, the projection of the bottom wall of the first recessed portion extends along the length direction of the heat exchange tube and towards the heat exchange tube, while extending away from the second sidewall of the first through-slot portion. The bottom wall of the first recessed portion is inclined relative to the length direction of the heat exchange tube, so that when the heat exchanger is in operation, it can guide the fluid flowing out of the inner cavity of the heat exchange tube, guiding the fluid to the cavity of the first through-slot portion, improving the phenomenon of fluid impacting the bottom wall of the first recessed portion, thereby reducing the flow resistance in the first manifold. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of an embodiment of the heat exchanger of this application;

[0010] Figure 2 This is an exploded structural diagram of an embodiment of the heat exchanger of this application;

[0011] Figure 3 This is a further exploded structural diagram of an embodiment of the heat exchanger of this application;

[0012] Figure 4 This is a cross-sectional structural schematic diagram of an embodiment of the heat exchanger of this application;

[0013] Figure 5 yes Figure 4 A partially enlarged schematic diagram of A is shown;

[0014] Figure 6 yes Figure 4 A partially enlarged schematic diagram of B is shown;

[0015] Figure 7 This is a cross-sectional schematic diagram of a portion of the structure of an embodiment of the heat exchanger of this application;

[0016] Figure 8 This is a schematic diagram of the structure of the first manifold of an embodiment of the heat exchanger of this application;

[0017] Figure 9 This is a schematic diagram of the structure of the first manifold of an embodiment of the heat exchanger of this application from another angle;

[0018] Figure 10 This is a schematic diagram of the structure of the second manifold of an embodiment of the heat exchanger of this application;

[0019] Figure 11 This is a structural schematic diagram of the second manifold of a heat exchanger embodiment of the present application from another angle;

[0020] Figure 12 This is a schematic diagram of the structure of the first baffle of an embodiment of the heat exchanger of this application;

[0021] Figure 13 This is a cross-sectional schematic diagram of the first flow collector and the first baffle after they are fitted together according to an embodiment of the heat exchanger of this application;

[0022] Figure 14 This is a schematic diagram of the side plate of an embodiment of the heat exchanger of this application;

[0023] Figure 15 This is a front view schematic diagram of a partial structure of an embodiment of the heat exchanger of this application. Detailed Implementation

[0024] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0025] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The singular forms “a,” “the,” and “the” used in this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0026] It should be understood that the terms "first," "second," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, "a" or "one," and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one; "multiple" indicates two or more. Unless otherwise stated, terms such as "front," "rear," "lower," and / or "upper" are for illustrative purposes only and are not limited to a location or spatial orientation. Terms such as "comprising" or "including" indicate that the elements or objects preceding "comprising" encompass the elements or objects listed following "comprising" or "including" and their equivalents, but do not exclude other elements or objects.

[0027] The heat exchanger of an exemplary embodiment of this application will now be described in detail with reference to the accompanying drawings. Unless otherwise specified, the features of the following embodiments and implementations can complement or combine with each other.

[0028] According to a specific embodiment of the heat exchanger of this application, such as Figure 1As shown, the heat exchanger includes a first manifold 1, a second manifold 2, and a plurality of heat exchange tubes 3. One end of each heat exchange tube 3 is connected to the first manifold 1, and the other end is connected to the second manifold 2. The inner cavity of each heat exchange tube 3 is connected to the inner cavity of the first manifold 1 and the inner cavity of the second manifold 2.

[0029] In this embodiment, the heat exchanger is a parallel flow heat exchanger. Specifically, the first manifold 1 and the second manifold 2 are arranged substantially parallel to each other. Along the length of the heat exchange tube 3, the first manifold 1 is located on one side of the heat exchange tube 3, and the second manifold 2 is located on the other side of the heat exchange tube 3. Multiple heat exchange tubes 3 are arranged substantially parallel to each other along the length of the first manifold 1, and the thickness direction of the heat exchange tubes 3 is parallel to or coincides with the length direction of the first manifold 1. In some other embodiments, the heat exchanger may also be a multi-row heat exchanger or a bent heat exchanger.

[0030] Reference Figures 2 to 5 as well as Figures 7 to 9 The first manifold 1 includes a first main body 11 and a second main body 12 assembled together. The first main body 11 and the second main body 12 are each independently formed and then assembled and fixed together. The first main body 11 includes a plurality of first holes 15, which are arranged along the length of the first manifold 1, and each first hole 15 corresponds to a heat exchange tube 3. Each first hole 15 has a first hole, and the end of the heat exchange tube 3 is inserted into the first hole. The outer side wall of the end of the heat exchange tube 3 is sealed to the inner side wall of the first hole 15. It is understood that before the heat exchange tube 3 mates with the first main body 11, the first hole penetrates the first main body 11 along its thickness direction; after the heat exchange tube 3 mates with the first main body 11, the end of the heat exchange tube 3 blocks the first hole. The first main body 11 includes a first protrusion 151, which is formed by the edge of the first hole 15 protruding along the direction from the first collector 1 toward the second collector 2. The first protrusion 151 is generally annular and surrounds the heat exchange tube 3. The inner wall surface of the first protrusion 151 is sealed to the outer wall surface of the end of the heat exchange tube 3. The first protrusion 151 in the first main body 11 increases the connection area between the first main body 11 and the heat exchange tube 3, thereby improving the connection strength between the heat exchange tube 3 and the first main body 11. Optionally, each first hole 15 may include the first protrusion 151, or only some of the first holes 15 may include the first protrusion 151.

[0031] The second main body 12 includes a first through groove 121, a plurality of first grooves 122, a plurality of second grooves 123, a plurality of first spacers 124, and a plurality of second spacers 125. The inner cavity of the first collector 1 is located between the first main body 11 and the second main body 12. The inner cavity of the first collector 1 includes the cavity of the first through groove 121, the cavity of the plurality of first grooves 122, and the cavity of the plurality of second grooves 123. The cavity of the first through groove 121 is connected to the cavity of all the first grooves 122, the cavity of all the second grooves 123, and the inner cavity of all the heat exchange tubes 3.

[0032] In this embodiment, the first groove portion 122 is located between two adjacent first interval portions 124, and the first interval portion 124 is located between two adjacent first groove portions 122. Along the length direction of the first current collector 1, the first groove portions 122 and the first interval portions 124 are arranged alternately. The second groove portion 123 is located between two adjacent second interval portions 125, and the second interval portion 125 is located between two adjacent second groove portions 123. Along the length direction of the first current collector 1, the second groove portions 123 and the second interval portions 125 are arranged alternately. The first interval portions 124 and the second interval portions 125 are respectively connected to the first main body portion 11. Compared with the solution without the first interval portions 124 and the second interval portions 125, the solution of this application increases the connection area between the first main body portion 11 and the second main body portion 12, thereby increasing the connection strength between the first main body portion 11 and the second main body portion 12. In addition, the first spacer portion 124 protrudes toward the first main body portion 11 relative to the first groove portion 122, and the second spacer portion 125 protrudes toward the first main body portion 11 relative to the second groove portion 123. The first spacer portion 124 and the second spacer portion 125 can be used as reinforcing ribs to increase the strength of the second main body portion 12, thereby increasing the pressure resistance of the first manifold 1, so that the heat exchanger of this application can be applied to thermal management systems using higher pressure refrigerants, such as thermal management systems using carbon dioxide refrigerant.

[0033] In this embodiment, the first through-slot 121, the first recessed slot 122, and the second recessed slot 123 are all elongated. The extending direction of the first through-slot 121 is parallel to or coincides with the length direction of the first collector 1, and the extending directions of the first recessed slot 122 and the second recessed slot 123 are parallel to or coincide with the width direction of the heat exchange tube 3. Spatially, along the width direction of the heat exchange tube 3, the first recessed slot 122 and the first spacer 124 are located on one side of the first through-slot 121. The first recessed slot 122 is closer to the edge connection between the first main body 11 and the second main body 12 than the first through-slot 121. The second recessed slot 123 and the second spacer 125 are located on the other side of the first through-slot 121. The second recessed slot 123 is closer to the edge connection between the first main body 11 and the second main body 12 than the first through-slot 121. The first groove portion 122 corresponds to the second groove portion 123, the first interval portion 124 corresponds to the second interval portion 125, and each heat exchange tube 3 corresponds to a first groove portion 122, a second groove portion 123, and a portion of the first through groove portion 121.

[0034] On a plane perpendicular to the length of the heat exchange tube 3, the projections of two adjacent heat exchange tubes 3 do not coincide. The end face of a heat exchange tube 3 is divided into three parts: a first end face falling into the projection of a first groove 122, a second end face falling into the projection of a second groove 123, and a third end face falling into the projection of a first through groove 121. Spatially, the projections of the first spacer 124 and the second spacer 125 are located between the projections of two adjacent heat exchange tubes 3, the projection of the first through groove 121 is located between the projections of the first groove 122 and the second groove 123, and the projection of the first through groove 121 is located between the projections of the first spacer 124 and the second spacer 125.

[0035] In some other embodiments, only the first spacer 124 or only the second spacer 125 may be provided, both of which can increase the connection strength between the first main body 11 and the second main body 12, as well as increase the pressure resistance of the first current collector 1. Of course, the first spacer 124 and the second spacer 125 may not be provided. In this case, the bottom wall of the first groove 122 extends continuously along the length direction of the first current collector 1, and the bottom wall of the second groove 123 extends continuously along the length direction of the first current collector 1. The pressure resistance of the first current collector 1 is increased by increasing the wall thickness of the second main body 12, or the connection strength between the first main body 11 and the second main body 12 is increased by providing other components.

[0036] In some other embodiments, the first groove portion 122 and the first spacer portion 124 are not arranged alternately. Along the length direction of the first collector 1, at least two first groove portions 122 are provided between two adjacent first spacer portions 124. The second groove portion 123 and the second spacer portion 125 may also not be arranged alternately. Along the length direction of the first collector 1, at least two second groove portions 123 are provided between two adjacent second spacer portions 125. It is understood that on a plane perpendicular to the length direction of the heat exchange tube 3, the projections of two adjacent first spacer portions 124 have at least two projections of the end faces of the heat exchange tube 3, and the projections of two adjacent second spacer portions 125 have at least two projections of the end faces of the heat exchange tube 3.

[0037] Reference Figure 5 and Figure 7 In this embodiment, the first through-slot 121 includes a bottom wall and a first side wall and a second side wall located on both sides of the bottom wall. The bottom wall of the first through-slot 121 connects the first side wall and the second side wall of the first through-slot 121. The bottom wall of the first through-slot 121 is away from the heat exchange tube relative to the first side wall and the second side wall of the first through-slot 121. The bottom wall surface of the first through-slot 121 is arc-shaped, and the opening of the first through-slot 121 faces the first main body 11, which can be used to increase the pressure resistance of the second main body 12 and increase the internal cavity size of the first collector 1. The cavity of the first through groove 121 is connected to the inner cavity of all heat exchange tubes 3. The cavity of the first through groove 121 is connected to the cavity of all first recessed grooves 122 and the cavity of all second recessed grooves 123. The first sidewall of the first through groove 121 is connected to the bottom wall of all first recessed grooves 122 and the first sidewall of the first through groove 121 is connected to the bottom wall of all second recessed grooves 123. The cavity of the first through groove 121 can be used to collect the fluid flowing out of the heat exchange tubes 3 together, or to divert the fluid in the cavity of the first through groove 121 to each heat exchange tube 3.

[0038] In this embodiment, the bottom wall surface of the first groove portion 122, the two side walls of the first groove portion 122, and the end face of the heat exchange tube 3 are all planar. The bottom wall surface of the first groove portion 122 is inclined relative to the end face of the heat exchange tube 3, and the bottom wall surface of the first groove portion 122 is also inclined relative to the first side wall of the first through groove portion 121. Specifically, the two side walls of the first groove portion 122 are approximately parallel, and both side walls are perpendicular to the end face of the heat exchange tube 3. The projections of the two side walls along the length direction of the first collector 1 are both right-angled triangles, with one right-angled side parallel to the end face of the heat exchange tube 3 and the other right-angled side perpendicular to the end face of the heat exchange tube 3. The first groove portion 122 includes a first edge 1221 and a second edge 1222. In terms of spatial orientation, along the width direction of the heat exchange tube 3, the bottom wall surface and the side walls of the first groove portion 122 are both located between the first edge 1221 and the second edge 1222. The first edge 1221 is the boundary of the bottom wall surface of the first groove portion 122 on one side of the heat exchange tube 3 in the width direction, and the second edge 1222 is the boundary of the bottom wall surface of the first groove portion 122 on the other side of the heat exchange tube 3 in the width direction. The second edge 1222 is closer to the first through groove portion 121 than the first edge 1221. In this embodiment, both the first edge 1221 and the second edge 1222 are straight structures, that is, the bottom wall surface of the first groove portion 122 is square. Along the length direction of the heat exchange tube 3, the first edge 1221 is closer to the end face of the heat exchange tube 3 than the second edge 1222. Along the direction from the first edge 1221 to the second edge 1222, the distance between the bottom wall surface of the first groove portion 122 and the end face of the heat exchange tube 3 gradually increases.

[0039] In related technologies, when the external dimensions of a heat exchanger are fixed, the height of the first manifold 1 (the dimension along the length of the heat exchange tube 3) needs to be reduced to increase the airflow area of ​​the heat exchanger. However, when the height of the first manifold 1 is reduced, the width of the first manifold 1 is fixed because the connection area between the first main body 11 and the second main body 12 needs to be ensured. Consequently, the internal cavity of the first manifold 1 will decrease in the width direction, and correspondingly, the width of the heat exchange tube 3 will decrease, resulting in a smaller heat exchange area and potentially reducing the heat exchange efficiency. This application addresses this by creating a clearance space through a first groove 122. Under the premise that the external dimensions of the first manifold 1 are fixed, this maximizes the width of the heat exchange tube 3, increasing the heat exchange area and thus improving the heat exchange efficiency. Furthermore, the bottom wall of the first groove 122 is inclined relative to the end face of the heat exchange tube 3. Compared to a parallel arrangement of the bottom wall of the first groove 122 with the end face of the heat exchange tube 3, this reduces the thickness loss of the second main body 12, thereby improving the pressure resistance of the second main body 12. In addition, the inclined arrangement of the bottom wall of the first groove 122 also has the effect of guiding fluid flow, improving the phenomenon of fluid impacting the bottom wall of the first groove 122, reducing the flow resistance in the first collector, and enabling the fluid flowing out of the heat exchange tube 3 to better converge into the cavity of the first through groove 121, or enabling the fluid in the cavity of the first through groove 121 to be better distributed to each heat exchange tube 3, thereby improving the fluid convergence or distribution effect.

[0040] The bottom wall surface of the second groove portion 123, the two side walls of the second groove portion 123, and the end face of the heat exchange tube 3 are all planar. The bottom wall surface of the second groove portion 123 is inclined relative to the end face of the heat exchange tube 3, and the bottom wall surface of the second groove portion 123 is also inclined relative to the second side wall of the first through groove portion 121. Specifically, the two side walls of the second groove portion 123 are approximately parallel, and both side walls are perpendicular to the end face of the heat exchange tube 3. The projection of the two side walls along the length direction of the first collector 1 is a right triangle, with one right-angled side parallel to the end face of the heat exchange tube 3 and the other right-angled side perpendicular to the end face of the heat exchange tube 3. The second groove portion 123 includes a third edge 1231 and a fourth edge 1232. In terms of spatial orientation along the width direction of the heat exchange tube 3, the bottom wall surface and the side wall surface of the second groove portion 123 are both located between the third edge 1231 and the fourth edge 1232. The third edge 1231 is the boundary of the bottom wall surface of the second groove portion 123 on one side of the width direction of the heat exchange tube 3, and the fourth edge 1232 is the boundary of the bottom wall surface of the second groove portion 123 on the other side of the width direction of the heat exchange tube 3. The fourth edge 1232 is closer to the first through groove portion 121 than the third edge 1231. In this embodiment, both the third edge 1231 and the fourth edge 1232 are straight structures, that is, the bottom wall surface of the second groove portion 123 is square. Along the length direction of the heat exchange tube 3, the third edge 1231 is closer to the end face of the heat exchange tube 3 than the fourth edge 1232. Along the direction from the third edge 1231 to the fourth edge 1232, the distance between the bottom wall surface of the second groove portion 123 and the end face of the heat exchange tube 3 gradually increases.

[0041] In some other embodiments, the end face of the heat exchange tube 3 may be only the first end face, only the second end face, or only the first end face and the second end face, and the other parts may be other shapes, such as arc surfaces.

[0042] Similarly, by setting the second groove 123 to form a clearance space and the bottom wall of the second groove 123 being inclined relative to the end face of the heat exchange tube 3, under the premise that the external dimensions of the heat exchanger are fixed, the width of the heat exchange tube 3 is made larger, increasing the heat exchange area of ​​the heat exchanger, thereby improving the heat exchange effect of the heat exchanger; reducing the thickness loss of the second main body 12, thereby improving the pressure resistance of the second main body 12; and guiding the fluid flow, improving the phenomenon of fluid impacting the bottom wall of the second groove 123, reducing the flow resistance in the first collector, and improving the fluid gathering or distribution effect.

[0043] In this embodiment, a first groove 122 and a second groove 123 are simultaneously provided, and the bottom wall surfaces of both the first groove 122 and the second groove 123 are inclined, resulting in a larger width of the heat exchange tube 3 and better heat exchange performance. In some other embodiments, only the first groove 122 or only the second groove 123 can be provided to achieve the same effect. In some other embodiments, only the bottom wall surface of the first groove 122, or only the bottom wall surface of the second groove 123, or only a portion of the bottom wall surface of the first groove 122 or only a portion of the bottom wall surface of the second groove 123 can be inclined to achieve the same effect.

[0044] In some other embodiments, the bottom wall surface of the first groove portion 122 may be provided with protrusions or grooves to create turbulence or drainage. However, overall, the distance between the bottom wall surface of the first groove portion 122 and the end face of the heat exchange tube 3 increases along the direction from the first edge 1221 to the second edge 1222. Similarly, the bottom wall surface of the second groove portion 123 may be provided with protrusions or grooves. However, overall, the distance between the bottom wall surface of the second groove portion 123 and the end face of the heat exchange tube 3 increases along the direction from the third edge 1231 to the fourth edge 1232.

[0045] In this embodiment, all first groove portions 122 have the same structure, and all second groove portions 123 have the same structure. The structures of the first groove portions 122 and the second groove portions 123 are also the same. In some other embodiments, all first groove portions 122 may have the same structure, and all second groove portions 123 may have the same structure, but the structures of the first groove portions 122 and the second groove portions 123 may be different; or, the structures of multiple first groove portions 122 may be different, or partially the same and partially different; or, the structures of multiple second groove portions 123 may be different, or partially the same and partially different.

[0046] Along the width direction of the heat exchange tube 3, the following are sequentially arranged: one edge connection point between the first main body 11 and the second main body 12, a first groove 122, a first through groove 121, a second groove 123, and the other edge connection point between the first main body 11 and the second main body 12. The first groove 122 and the second groove 123 are provided to fully utilize the structure of the second main body 12 along the width direction of the heat exchange tube 3, allowing the width of the heat exchange tube 3 to be relatively large, resulting in a relatively large heat exchange area. The inclined arrangement of the bottom wall surfaces of the first groove 122 and the second groove 123 results in relatively small cavities for the first groove 122 and the second groove 123, effectively removing a smaller portion of the second main body 12 to create clearance space. This has minimal impact on the thickness of the second main body 12, ensuring its pressure resistance.

[0047] Reference Figure 3 , Figure 4 , Figure 6 , Figure 10 and Figure 11 The second manifold 2 includes a third main body 21 and a fourth main body 22 assembled together. The third main body 21 and the fourth main body 22 are each independently formed, then assembled and fixed together. The third main body 21 includes a plurality of second holes 23, arranged along the length of the second manifold 2, each corresponding to a heat exchange tube 3. Each second hole 23 has a second hole into which the end of the heat exchange tube 3 is inserted, and the outer side wall of the end of the heat exchange tube 3 is sealed to the inner side wall of the second hole 23. The third main body 21 includes a second protrusion 231, formed by the edge of the second hole 23 protruding along the direction of the second manifold 2 toward the first manifold 1. The second protrusion 231 is generally annular and surrounds the heat exchange tube 3, and the inner wall surface of the second protrusion 231 is sealed to the outer wall surface of the end of the heat exchange tube 3. The provision of the second protrusion 231 on the third main body 21 can increase the connection area between the third main body 21 and the heat exchange tube 3, thereby improving the connection strength between the heat exchange tube 3 and the third main body 21. Optionally, each second hole 23 may include the second protrusion 231, or only some of the second hole 23 may include the second protrusion 231.

[0048] The fourth main body 22 includes a second through-slot 221, a plurality of third recesses 222, a plurality of fourth recesses 223, a plurality of third spacers 224, and a plurality of fourth spacers 225. The second through-slot 221, the third recesses 222, and the fourth recesses 223 are all elongated. The extending direction of the second through-slot 221 is parallel to or coincides with the length direction of the second collector 2, and the extending directions of the third recesses 222 and the fourth recesses 223 are parallel to or coincide with the width direction of the heat exchange tube 3. Spatially, along the width direction of the heat exchange tube 3, the third recesses 222 and the third spacers 224 are located on one side of the second through-slot 221, and the fourth recesses 223 and the fourth spacers 225 are located on the other side of the second through-slot 221. The inner cavity of the second manifold 2 is located between the third main body 21 and the fourth main body 22. The inner cavity of the second manifold 2 includes the cavity of the second through groove 221, the cavities of a plurality of third recessed grooves 222, and the cavities of a plurality of fourth recessed grooves 223. The cavity of the second through groove 221 communicates with the cavities of all the third recessed grooves 222, the cavities of all the fourth recessed grooves 223, and the inner cavities of all the heat exchange tubes 3.

[0049] In this embodiment, the third groove portion 222 is located between two adjacent third interval portions 224, and the third interval portion 224 is located between two adjacent third groove portions 222. Along the length direction of the second current collector 2, the third groove portions 222 and the third interval portions 224 are arranged alternately. The fourth groove portion 223 is located between two adjacent fourth interval portions 225, and the fourth interval portion 225 is located between two adjacent fourth groove portions 223. Along the length direction of the second current collector 2, the fourth groove portions 223 and the fourth interval portions 225 are arranged alternately. The third interval portions 224 and the fourth interval portions 225 are respectively connected to the third main body portion 21, increasing the connection area between the third main body portion 21 and the fourth main body portion 22, thereby increasing the connection strength between the third main body portion 21 and the fourth main body portion 22. Furthermore, the third spacer 224 and the fourth spacer 225 can be used as reinforcing ribs to increase the strength of the fourth main body 22, thereby increasing the pressure resistance of the second manifold 2, so that the heat exchanger of this application can be applied to thermal management systems that use refrigerants with higher pressure, such as thermal management systems that use carbon dioxide refrigerant.

[0050] The third groove 222 corresponds to the fourth groove 223, and the third spacer 224 corresponds to the fourth spacer 225. Each heat exchange tube 3 corresponds to one third groove 222, one fourth groove 223, and a portion of the second through groove 221. In other words, the end face of a heat exchange tube 3 away from the first collector 1 is divided into three parts: a fourth end face that falls in the projection of a third groove 222, a fifth end face that falls in the projection of a fourth groove 223, and a sixth end face that falls in the projection of the second through groove 221.

[0051] Reference Figure 6 and Figure 10 In this embodiment, the bottom wall of the second through groove 221 is arc-shaped, and the opening of the second through groove 221 faces the third main body 21, which can be used to increase the pressure resistance of the fourth main body 22 and increase the inner cavity size of the second collector 2.

[0052] In this embodiment, the bottom wall surface of the third groove portion 222, the two side walls of the third groove portion 222, and the end face of the heat exchange tube 3 are all planar. The bottom wall surface of the third groove portion 222 is inclined relative to the end face of the heat exchange tube 3. Specifically, the third groove portion 222 includes a fifth edge 2221 and a sixth edge 2222. In terms of spatial orientation along the width direction of the heat exchange tube 3, the bottom wall surface and the side walls of the third groove portion 222 are both located between the fifth edge 2221 and the sixth edge 2222. The fifth edge 2221 is the edge of the bottom wall surface of the third groove portion 222 on one side in the width direction of the heat exchange tube 3, and the sixth edge 2222 is the edge of the bottom wall surface of the third groove portion 222 on the other side in the width direction of the heat exchange tube 3. The sixth edge 2222 is closer to the second through groove portion 221 than the fifth edge 2221. Along the length of the heat exchange tube 3, the fifth edge 2221 is closer to the end face of the heat exchange tube 3 than the sixth edge 2222. Along the direction from the fifth edge 2221 toward the sixth edge 2222, the distance between the bottom wall of the third groove portion 222 and the end face of the heat exchange tube 3 gradually increases.

[0053] The bottom wall surface of the fourth groove portion 223, the two side walls of the fourth groove portion 223, and the end face of the heat exchange tube 3 are all planar. The bottom wall surface of the fourth groove portion 223 is inclined relative to the end face of the heat exchange tube 3. Specifically, the fourth groove portion 223 includes a seventh edge 2231 and an eighth edge 2232. In terms of spatial orientation along the width direction of the heat exchange tube 3, the bottom wall surface and the side walls of the fourth groove portion 223 are located between the seventh edge 2231 and the eighth edge 2232. The seventh edge 2231 is the edge of the bottom wall surface of the fourth groove portion 223 on one side in the width direction of the heat exchange tube 3, and the eighth edge 2232 is the edge of the bottom wall surface of the fourth groove portion 223 on the other side in the width direction of the heat exchange tube 3. The eighth edge 2232 is closer to the second through groove portion 221 than the seventh edge 2231. Along the length direction of the heat exchange tube 3, the seventh edge 2231 is closer to the end face of the heat exchange tube 3 than the eighth edge 2232. Along the direction from the seventh edge 2231 toward the eighth edge 2232, the distance between the bottom wall of the fourth groove 223 and the end face of the heat exchange tube 3 gradually increases.

[0054] Similarly, by setting the third groove 222 to form a clearance space and the bottom wall of the third groove 222 being inclined, and setting the fourth groove 223 to form a clearance space and the bottom wall of the fourth groove 223 being inclined, under the premise that the external dimensions of the heat exchanger are fixed, the width of the heat exchange tube 3 is made larger, the heat exchange area of ​​the heat exchanger is increased, thereby improving the heat exchange effect of the heat exchanger; the thickness loss of the fourth main body 22 is reduced, thereby improving the pressure resistance of the fourth main body 22; and it is used to guide fluid flow and improve the fluid convergence or distribution effect.

[0055] The structure of the third main body 21 is roughly the same as that of the first main body 11, and the structure of the fourth main body 22 is roughly the same as that of the second main body 12. The second hole 23 can be referred to the relevant description of the first main body 11. The structural design of the second through groove 221, the third groove 222, the fourth groove 223, the third spacer 224, and the fourth spacer 225 can be referred to the relevant description of the second main body 12, and will not be repeated here.

[0056] Reference Figures 4 to 7 The heat exchange tube 3 includes a body, a first constricted portion, and a second constricted portion. The first constricted portion is located at one end along the length of the heat exchange tube 3, and the second constricted portion is located at the other end along the length of the heat exchange tube 3. The widths of both the first and second constricted portions are smaller than the width of the body. The size of the first constricted portion is slightly smaller than the size of the first hole 15, and the size of the second constricted portion is slightly smaller than the size of the second hole 23. The size of the body is larger than the size of the first hole 15 and the second hole 23. The first constricted portion is inserted into the first hole of the first body 11, and the second constricted portion is inserted into the second hole of the second body 12. One end of the body engages with the first protrusion 151 of the first body 11, and the other end engages with the second protrusion 231 of the second body 12, thereby limiting the insertion depth of the heat exchange tube 3. Each heat exchange tube 3 has multiple parallel flow channels. Each flow channel extends through both end faces of the heat exchange tube 3 along its length and connects the inner cavity of the first manifold 1 and the inner cavity of the second manifold 2.

[0057] The first constricted portion includes a first side portion 31 and a second side portion 32. The first side portion 31 and the second side portion 32 are respectively connected to the first hole portion 15 of the first main body portion 11. The first side portion 31 is located on one side of the width direction of the heat exchange tube 3, and the second side portion 32 is located on the other side of the width direction of the heat exchange tube 3. Along the width direction of the heat exchange tube 3, the first edge 1221 is closer to the first side portion 31 relative to the second edge 1222, and the first edge 1221 is farther away from the second side portion 32 relative to the first side portion 31. The first edge 1221 is farther away from the edge of the first hole portion 15 relative to the first side portion 31. The third edge 1231 is closer to the second side portion 32 relative to the fourth edge 1232, and the third edge 1231 is farther away from the first side portion 31 relative to the second side portion 32. The third edge 1231 is farther away from the edge of the first hole portion 15 relative to the second side portion 32.

[0058] The second constricted portion includes a third side portion 33 and a fourth side portion 34, which are respectively connected to the second hole portion 23 of the third main body portion 21. The third side portion 33 is located on one side of the width direction of the heat exchange tube 3, and the fourth side portion 34 is located on the other side of the width direction of the heat exchange tube 3. Along the width direction of the heat exchange tube 3, the fifth edge 2221 is closer to the third side portion 33 than the sixth edge 2222, and the fifth edge 2221 is farther away from the fourth side portion 34 than the third side portion 33. The fifth edge 2221 is farther away from the edge of the second hole portion 23 than the edge of the third side portion 33. The seventh edge 2231 is closer to the fourth side portion 34 than the eighth edge 2232, and the seventh edge 2231 is farther away from the third side portion 33 than the fourth side portion 34. The seventh edge 2231 is farther away from the fourth side portion 34 than the edge of the second hole portion 23.

[0059] This application uses a first constriction portion that cooperates with the first main body portion 11 to limit the depth of the heat exchange tube 3 inserted into the first manifold 1, thus spacing the heat exchange tube 3 from the second main body portion 12. The first side portion 31 and the second side portion 32 are both spaced a certain distance from the second main body portion 12. Similarly, the second constriction portion cooperates with the third main body portion 21 to limit the depth of the heat exchange tube 3 inserted into the second manifold 2, thus spacing the heat exchange tube 3 from the fourth main body portion 22. The third side portion 33 and the fourth side portion 34 are both spaced a certain distance from the fourth main body portion 22. This arrangement allows for a flow channel to be provided in the area near the edge of the heat exchange tube 3 in the width direction, increasing the width of the heat exchange tube 3 while fully utilizing the space in the width direction of the heat exchange tube 3, thereby increasing the heat exchange area of ​​the heat exchanger.

[0060] Reference Figure 7The maximum dimension of the first through-slot 121 in the width direction of the heat exchange tube 3 is defined as W1, that is, the maximum distance between the two side walls of the first through-slot 121 in the width direction of the heat exchange tube 3 is W1. The minimum distance between the second edge 1222 and the fourth edge 1232 in the width direction of the heat exchange tube 3 is defined as W2. The maximum distance between the first side portion 31 and the second side portion 32 in the width direction of the heat exchange tube 3 is defined as W3, that is, the maximum width of the first constriction portion is W3. The maximum dimension of the heat exchange tube 3 in the width direction of the heat exchange tube 3 is defined as W4, that is, the maximum width of the main body portion is W4. The minimum distance between the first edge 1221 and the third edge 1231 in the width direction of the heat exchange tube 3 is defined as W5. The maximum dimension of the first hole portion 15 in the width direction of the heat exchange tube 3 is defined as W6. W5 > W3 > W2 ≥ W1, W5 > W6 ≥ W3, W4 > W3, W1 ≥ 0.3 * W4. The angle between the bottom wall of the first groove 122 and the end face of the heat exchange tube 3 is defined as α, where 0° < α < 90°, and optionally, 20° < α < 60°. The angle between the bottom wall of the second groove 123 and the end face of the heat exchange tube 3 is defined as b, where 0° < b < 90°, and optionally, 20° < b < 60°. This dimensional design results in a relatively large inner cavity for the first manifold 1, allowing for smoother fluid flow, reduced flow resistance, and decreased likelihood of interference between the first main body 11, the second main body 12, and the heat exchange tube 3.

[0061] In this embodiment, the structures of the first collector 1 and the second collector 2 are roughly the same. The dimensional relationship between the heat exchange tube 3 and the first collector 1 is basically the same as the dimensional relationship between the heat exchange tube 3 and the second collector 2. The relationship between the second collector 2 and the heat exchange tube 3 can be referred to the relevant description above, and will not be repeated here.

[0062] In this embodiment, the first main body 11 and the third main body 21 are plate materials. The process of processing the first hole 15 and the second hole 23 is a piercing and flanging process. Specifically, a tool is used to punch holes in the plate material to be processed, and the material at the edge of the hole is bent and deformed to form a flanging. After processing, the flanging on the plate material is the first protrusion 151 and the second protrusion 231. The channel formed by punching holes in the plate material and the sidewall forming the channel are the first hole 15 and the second hole 23. The side of the first hole 15 away from the first protrusion 151 has a chamfered portion with a roughly arc-shaped cross-section, and the side of the second hole 23 away from the second protrusion 231 also has a chamfered portion with a roughly arc-shaped cross-section. After the first constricted portion of the heat exchange tube 3 is inserted into the first hole and the second constricted portion of the heat exchange tube 3 is inserted into the second hole, neither the first constricted portion nor the second constricted portion contacts the chamfered portion. The chamfered portion can be used to guide the fluid into or out of the inner cavity of the heat exchange tube 3.

[0063] Optionally, when processing the first hole 15 and the second hole 23, the hole can be drilled first and then the flange can be turned, or the drilling and turning can be performed simultaneously; this application does not impose any restrictions. In some other embodiments, the first protrusion 151 and the second protrusion 231 can also be processed using other processes such as splicing.

[0064] The second main body 12 and the fourth main body 22 are profiles. The processing technology for both the second main body 12 and the fourth main body 22 includes extrusion and machining. After extrusion molding, a substrate with a first through groove 121 is formed. Then, a first recessed groove 122, a second recessed groove 123, a first spacer 124, and a second spacer 125 are machined onto the substrate to form the second main body 12. Similarly, after extrusion molding, a substrate with a second through groove 221 is formed. Then, a third recessed groove 222, a fourth recessed groove 223, a third spacer 224, and a fourth spacer 225 are machined onto the substrate to form the fourth main body 22.

[0065] Reference Figures 1 to 4 as well as Figures 8 to 11 The first main body 11 also includes a plurality of first claw portions 18, which are distributed on both sides of the width direction of the first main body 11. The first claw portions 18 extend outward from the first main body 11 and clamp the edge of the second main body 12. The cross-section of the first claw portion 18 is approximately L-shaped. Before brazing, this allows the first main body 11 and the second main body 12 to fit together, reducing the possibility of separation. After brazing, it can also increase the contact area between the first main body 11 and the second main body 12, improving the connection strength between them. In some embodiments, the first claw portion 18 can be a long strip structure extending along the length direction of the first current collector 1, and the first claw portion 18 wraps around the edge of the second main body 12. The third main body 21 also includes a plurality of second claws 26, which are distributed on both sides of the width direction of the third main body 21. The design principle of the second claws 26 is the same as that of the first claws 18, and the relevant description of the first claws 18 can be referred to.

[0066] The first collector 1 also includes a first baffle 71 and a second baffle 72. The first baffle 71 is located at one end of the length direction of the first collector 1, and the second baffle 72 is located at the other end of the length direction of the first collector 1. At least a portion of the first baffle 71 is located between the first main body portion 11 and the second main body portion 12. The first baffle 71 is sealed to the first main body portion 11 and the second main body portion 12, and the first baffle 71 blocks one end of the inner cavity of the first collector 1. At least a portion of the second baffle 72 is located between the first main body portion 11 and the second main body portion 12. The second baffle 72 is sealed to the first main body portion 11 and the second main body portion 12, and the second baffle 72 blocks the other end of the inner cavity of the first collector 1. A first through groove portion 121 is located between the first baffle 71 and the second baffle 72.

[0067] The second collector 2 also includes a third baffle 73 and a fourth baffle 74. The third baffle 73 is located at one end of the length direction of the second collector 2, and the fourth baffle 74 is located at the other end of the length direction of the second collector 2. At least a portion of the third baffle 73 is located between the third main body portion 21 and the fourth main body portion 22, and the third baffle 73 is sealed to the third main body portion 21 and the fourth main body portion 22, blocking one end of the inner cavity of the second collector 2. At least a portion of the fourth baffle 74 is located between the third main body portion 21 and the fourth main body portion 22, and the fourth baffle 74 is sealed to the third main body portion 21 and the fourth main body portion 22, blocking the other end of the inner cavity of the second collector 2. The second through groove portion 221 is located between the third baffle 73 and the fourth baffle 74.

[0068] The first collector 1 and the second collector 2 have basically the same structure, the difference being that the first collector 1 also includes a fifth baffle 75, a first opening 13, and a second opening 14. The fifth baffle 75 is located between the first baffle 71 and the second baffle 72, and at least a portion of the fifth baffle 75 is located between the first main body 11 and the second main body 12. The fifth baffle 75 is sealed to the first main body 11 and the second main body 12, and divides the first through groove 121 into a first segment and a second segment. The first segment and the second segment are not connected within the first collector 1. A portion of the heat exchange tubes 3 communicates with the corresponding cavity of the first segment, and another portion of the heat exchange tubes 3 communicates with the corresponding cavity of the second segment. The first opening 13 and the second opening 14 are located in the second main body 12. The first opening 13 has a first opening that communicates with the corresponding cavity of the first segment. The second opening 14 has a second opening that communicates with the corresponding cavity of the second segment. One of the first opening 13 and the second opening 14 serves as the inlet of the heat exchanger, and the other as the outlet of the heat exchanger.

[0069] The heat exchanger also includes a first pressure plate 51 and a second pressure plate 52, which are fixed to the second main body 12 of the first manifold 1. The first pressure plate 51 has a through hole that connects the outside of the heat exchanger and the first opening of the first opening 13. The second pressure plate 52 has a through hole that connects the outside of the heat exchanger and the second opening of the second opening 14.

[0070] In this embodiment, the first baffle 71, the second baffle 72, the third baffle 73, the fourth baffle 74, and the fifth baffle 75 have the same structure. The following description uses the first baffle 71 as an example. (Refer to...) Figure 11 and Figure 12 The first baffle 71 includes a base 711, a first extension 713, and a second extension 712, which extend outward from the base 711. The first main body 11 has a first through hole 111 penetrating the first main body 11, and the second main body 12 has a second through hole 126 penetrating the second main body 12. The first extension 713 is inserted into the first through hole 111, and its outer side wall is fitted and sealed against the wall forming the first through hole 111. The second extension 712 is inserted into the second through hole 126, and its outer side wall is fitted and sealed against the wall forming the second through hole 126. The base 711 includes a first mating surface 715 and a second mating surface 714. The first mating surface 715 is fitted and sealed against the wall of the first main body 11 facing the second main body 12, and the second mating surface 714 is fitted and sealed against the wall of the second main body 12 facing the first main body 11. The first baffle 71 is positioned by the first extension 713 engaging with the first main body 11 and the second extension 712 engaging with the second main body 12. The sealing connection between the first baffle 71 and both the first main body 11 and the second main body 12 achieves the effect of sealing the cavity. In some other embodiments, the first baffle 71 may only have the first extension 713 or only the second extension 712, which also achieves the effect of sealing the cavity.

[0071] The first main body 11 also has a third through hole 112 and a fifth through hole 113, both of which penetrate the first main body 11. The second main body 12 also has a fourth through hole 127 and a sixth through hole 128, both of which penetrate the second main body 12. A second baffle 72 is inserted into the third through hole 112 and the fourth through hole 127, respectively. A fifth baffle 75 is inserted into the fifth through hole 113 and the sixth through hole 128, respectively.

[0072] The third main body 21 has a seventh through hole 211 and a ninth through hole 212 penetrating the third main body 21, and the fourth main body 22 has an eighth through hole 226 and a tenth through hole 227 penetrating the fourth main body 22. The third baffle 73 is inserted into the seventh through hole 211 and the eighth through hole 226, respectively. The fourth baffle 74 is inserted into the ninth through hole 212 and the tenth through hole 227, respectively.

[0073] Reference Figures 1 to 3 as well as Figures 13 to 14 The heat exchanger also includes a side plate 4, which is arranged approximately parallel to the heat exchange tubes 3. The length direction of the side plate 4 is parallel to or coincides with the length direction of the heat exchange tubes 3, the thickness direction of the side plate 4 is parallel to or coincides with the thickness direction of the heat exchange tubes 3, and the width direction of the side plate 4 is parallel to or coincides with the width direction of the heat exchange tubes 3. Along the length direction of the first manifold 1, the side plate 4 is located on the outermost side of all the heat exchange tubes 3, serving to protect the heat exchanger.

[0074] A first mating groove 16 is provided at one end of the first main body 11. The first mating groove 16 extends through the first main body 11 along the length direction of the heat exchange tube 3 and has a cavity opening facing away from the heat exchange tube 3. A second mating groove 24 is provided at one end of the third main body 21. The second mating groove 24 extends through the third main body 21 along the length direction of the heat exchange tube 3 and has a cavity opening facing away from the heat exchange tube 3.

[0075] The side plate 4 includes a first end 42, a second end 43, and an intermediate portion 41 connecting the first end 42 and the second end 43. The first end 42 mates with the first main body portion 11, and at least a portion of the first end 42 is located in the groove of the first mating groove portion 16. The second end 43 mates with the third main body portion 21, and at least a portion of the second end 43 is located in the groove of the second mating groove portion 24.

[0076] In this embodiment, the side plate 4 has an axisymmetric structure. The first end 42 and the second end 43 have identical structures. The first mating groove 16 mates with the first end 42, and the second mating groove 24 mates with the second end 43. Therefore, the structures of the first mating groove 16 and the second mating groove 24 are also identical. The following description uses the first end 42 and the first mating groove 16 as examples.

[0077] The first end portion 42 includes a hook portion 46, a recessed portion 45, and a fitting portion 44. The recessed portion 45 connects the hook portion 46 and the fitting portion 44, and is recessed inward relative to the hook portion 46 and the fitting portion 44. The fitting portion 44 is fitted to the side wall of the first main body portion 11 away from the second main body portion 12. After brazing, the fitting portion 44 is fixedly connected to the first main body portion 11, making the side plate 4 and the first main body portion 11 an integral unit, increasing the strength of the heat exchanger. In some other embodiments, the fitting portion 44 may not be fitted to the first main body portion 11, and the fixed connection between the side plate 4 and the first main body portion 11 can be achieved through the recessed portion 45 or the hook portion 46.

[0078] The side wall of the first mating groove 16 is provided with a protrusion 161, which protrudes in the direction toward the recessed portion 45 and mates with the recessed portion 45. In the width direction of the heat exchange tube 3, the size of the hook portion 46 is larger than the size of the recessed portion 45, and the size of the hook portion 46 is larger than the maximum distance between the protrusion 161 and the other side wall, so as to prevent the first end 42 from falling out of the first main body 11 along the length direction of the heat exchange tube 3, thereby limiting the side plate 4 in the length direction of the heat exchange tube 3.

[0079] In some embodiments, only one sidewall of the first mating groove 16 may have a protrusion 161, or both sidewalls of the first mating groove 16 may have a protrusion 161, with the two protrusions 161 arranged symmetrically, and the size of the hook 46 being greater than the maximum distance between the two protrusions 161.

[0080] When assembling the heat exchanger of this application with the side plate 4 and the first manifold 1, the side plate 4 is first placed on one side of the length direction of the first manifold 1, with the first end 42 aligned with the first mating groove 16. Then, the side plate 4 and the first manifold 1 are brought closer together. After assembly, the first end 42 is accommodated in the cavity of the first mating groove 16, the hook 46 is located on one side of the protrusion 161, and the fitting part 44 is located on the other side of the protrusion 161, thereby limiting the side plate 4 in the length direction of the heat exchange tube 3. To prevent the side plate 4 from falling off along the length direction of the first manifold 1, it can be fixed by binding or snapping to limit the side plate 4 in the length direction of the first manifold 1.

[0081] There are two side plates 4, and the heat exchange tube 3 is located between the two side plates 4. A third mating groove 17 is provided at the other end of the first main body 11, and a fourth mating groove 25 is provided at the other end of the third main body 21. In this embodiment, the structures of the first mating groove 16, the second mating groove 24, the third mating groove 17, and the fourth mating groove 25 are completely identical, as described in the relevant description. The heat exchanger also includes a heat exchange element located between two adjacent heat exchange tubes 3, or between the heat exchange tube 3 and the side plate 4, to enhance the heat exchange effect of the heat exchanger. The design principle of the heat exchange element is well known to those skilled in the art and will not be elaborated further in this application.

[0082] The heat exchanger also includes multiple supports for fixing it in place. In this embodiment, the heat exchanger includes a first support 61, a second support 62, a third support 63, and a fourth support 64. The first support 61 and the second support 62 are fixedly connected to the second main body 12, and the third support 63 and the fourth support 64 are fixedly connected to the fourth main body 22. The first support 61 and the second support 62 are arranged along the length of the first manifold 1, and the third support 63 and the fourth support 64 are arranged along the length of the second manifold 2. The first support 61, the second support 62, the third support 63, and the fourth support 64 are used to fix the four corners of the heat exchanger, thereby ensuring that the heat exchanger is stably fixed and reducing shaking.

[0083] The above description is merely a preferred embodiment of this application and is not intended to limit this application in any way. Although this application has disclosed the preferred embodiment as above, it is not intended to limit this application. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the technical solution of this application. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the content of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A heat exchanger, characterized in that, It includes a first manifold and a heat exchange tube. The first manifold includes a first main body and a second main body assembled together. The heat exchange tube is sealed to the first main body. The second main body includes a first through groove and a first recess. The extension direction of the first through groove is parallel to or coincides with the length direction of the first collector. The cavity of the first recess communicates with the cavity of the first through groove. The inner cavity of the heat exchange tube communicates with the cavity of the first recess and the cavity of the first through groove, respectively. The first through groove includes a bottom wall and a first side wall and a second side wall located on both sides of the bottom wall. The bottom wall of the first through groove is away from the heat exchange tube relative to the first side wall and the second side wall of the first through groove. The first side wall of the first through groove connects the bottom wall of the first groove and the bottom wall of the first through groove. On a plane perpendicular to the length direction of the first collector, the projection of the first groove is located outside the projection of the first through groove. The projection of the bottom wall of the first groove extends from the projection of the first side wall of the first through groove along the length direction of the heat exchange tube in a direction close to the heat exchange tube, and at the same time extends in a direction away from the second side wall of the first through groove.

2. A heat exchanger as described in claim 1, characterized in that, The end of the heat exchange tube includes a first side portion and a second side portion. The first side portion and the second side portion are respectively connected to the first main body portion. The first side portion is located on the outermost side of one side in the width direction of the heat exchange tube, and the second side portion is located on the outermost side of the other side in the width direction of the heat exchange tube. On a plane perpendicular to the length direction of the heat exchange tube, the projection of the first side portion falls into the projection of the bottom wall of the first groove portion. The first groove includes a first edge and a second edge. In terms of spatial orientation, the bottom wall surface and the side wall surface of the first groove are both located between the first edge and the second edge. The first edge is connected to the first main body, and the second edge is connected to the first side wall of the first through groove. Along the width direction of the heat exchange tube, the first edge is closer to the first side portion relative to the second edge, and the second edge is closer to the first through groove portion relative to the first edge; along the length direction of the heat exchange tube, the first edge is closer to the first end face of the heat exchange tube relative to the second edge.

3. A heat exchanger as described in claim 2, characterized in that, The second main body includes a second groove portion, the cavity of the second groove portion is connected to the cavity of the first through groove portion, the inner cavity of the heat exchange tube is connected to the cavity of the second groove portion, and the second side wall of the first through groove portion is connected to the bottom wall of the second groove portion and the bottom wall of the first through groove portion; On a plane perpendicular to the length direction of the heat exchange tube, the projection of the second side portion falls into the projection of the bottom wall of the second groove portion; On a plane perpendicular to the length direction of the first collector, the projection of the second groove is located outside the projection of the first through groove. The projection of the bottom wall of the second groove extends from the projection of the second side wall of the first through groove toward the heat exchange tube, and at the same time extends away from the first side wall of the first through groove.

4. A heat exchanger as described in claim 3, characterized in that, The second groove includes a third edge and a fourth edge. In terms of spatial orientation along the width direction of the heat exchange tube, the bottom wall surface and the side wall surface of the second groove are both located between the third edge and the fourth edge. The third edge is connected to the first main body, and the fourth edge is connected to the second side wall of the first through groove. Along the width direction of the heat exchange tube, the third edge is closer to the second side relative to the fourth edge, and the fourth edge is closer to the first through groove relative to the third edge. Along the length direction of the heat exchange tube, the third edge is closer to the second end face of the heat exchange tube relative to the fourth edge.

5. A heat exchanger as described in claim 4, characterized in that, Along the width direction of the heat exchange tube, the first edge is farther away from the second side relative to the first side, and the third edge is farther away from the first side relative to the second side; Along the direction from the first edge toward the second edge, the distance between the bottom wall surface of the first groove and the first end face of the heat exchange tube gradually increases; Along the direction from the third edge toward the fourth edge, the distance between the bottom wall of the second groove and the second end face of the heat exchange tube gradually increases.

6. A heat exchanger as described in claim 4, characterized in that, The maximum dimension of the first through groove in the width direction of the heat exchange tube is defined as W1. The minimum distance between the second edge and the fourth edge in the width direction of the heat exchange tube is defined as W2. The maximum distance between the first side and the second side in the width direction of the heat exchange tube is defined as W3. The maximum dimension of the heat exchange tube in the width direction of the heat exchange tube is defined as W4. The minimum distance between the first edge and the third edge in the width direction of the heat exchange tube is defined as W5. W5 > W3 > W2 ≥ W1, W4 > W3, W1 ≥ 0.3 * W4.

7. A heat exchanger as described in claim 3, characterized in that, The bottom wall surface of the first groove and the first end face of the heat exchange tube are both planes, and the angle between the bottom wall surface of the first groove and the first end face of the heat exchange tube is α, where 0° < α < 90°; or, The bottom wall surface of the second groove and the second end face of the heat exchange tube are both planes, and the angle between the bottom wall surface of the second groove and the second end face of the heat exchange tube is b, where 0° < b < 90°.

8. A heat exchanger as described in claim 1, characterized in that, The second main body includes a plurality of first groove portions and a plurality of first interval portions. The plurality of first groove portions are arranged along the length direction of the first current collector, and the plurality of first interval portions are arranged along the length direction of the first current collector. The first interval portions are located between two adjacent first groove portions and are connected to the first main body.

9. A heat exchanger as described in claim 3, characterized in that, The second main body includes a plurality of second groove portions and a plurality of second spacer portions. The plurality of second groove portions are arranged along the length direction of the first current collector, and the plurality of second spacer portions are arranged along the length direction of the first current collector. The second spacer portions are located between two adjacent second groove portions, and the second spacer portions are connected to the first main body.

10. A heat exchanger as described in claim 1, characterized in that, The heat exchanger includes a side plate, which is located outside the heat exchange tube along the length of the first manifold. The first main body includes a first mating groove that extends through the length of the heat exchange tube, and the opening of the groove cavity of the first mating groove is open in a direction away from the heat exchange tube. A portion of the side plate is located in the groove cavity of the first mating groove, and the side plate is limitedly connected to the side wall of the first mating groove.

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