Cooling fin, heat exchange device, air conditioning system and vehicle

Abstract

The invention relates to a cooling fin, a heat exchange device, an air conditioning system and a vehicle. The cooling fin is of a honeycomb structure. The condensing fins are designed to be of the honeycomb-shaped structure, the fins of the honeycomb-shaped structure can greatly improve the heat exchange efficiency in the unit volume, the size is smaller, the weight is lighter, and due to the fact that the honeycomb-shaped structure is regular, the air resistance of the fins can be reduced; in addition, due to the fact that the honeycomb structure is high in stability, the structural strength of the cooling fins is higher.

Description

Technical Field

[0001] This application relates to the field of condenser technology, and more particularly to a heat sink fin, a heat exchange device, an air conditioning system, and a vehicle. Background Technology

[0002] With the development of technology, higher requirements are placed on the heat exchange capacity of condensers. Currently, the heat dissipation fins of heat dissipation systems in related technologies have insufficient heat dissipation efficiency. Therefore, it is necessary to improve the design of existing heat dissipation fins.

[0003] Therefore, a technical solution is needed to at least partially solve the above-mentioned technical problems. Summary of the Invention

[0004] This application provides a heat exchange fin, a heat exchange device, an air conditioning system, and a vehicle. The heat exchange fin can improve heat exchange efficiency, thereby at least partially solving the above-mentioned technical problems.

[0005] To achieve the above objectives, according to a first aspect of this application, a heat dissipation fin is provided, comprising:

[0006] The heat dissipation fins themselves are constructed with a honeycomb structure.

[0007] In some embodiments, the heat dissipation fins include a plurality of honeycomb units connected together to form a honeycomb structure, and at least a portion of the walls of the honeycomb units are provided with a plurality of through holes.

[0008] In some embodiments, the through holes are evenly distributed on the wall surface of the honeycomb cell.

[0009] In some embodiments, the cell has a wall thickness of 0.05mm-0.08mm and a side length of 1mm-2mm.

[0010] In some embodiments, the heat dissipation fins have at least a first end face, and the channel centerline of the heat dissipation fins is mounted at a predetermined angle to the first end face.

[0011] In some embodiments, the included angle is 0°-20°.

[0012] In some embodiments, the honeycomb structure of the heat dissipation fins is a variable aperture honeycomb structure.

[0013] In some embodiments, the heat dissipation fins are at least partially a metal foam structure.

[0014] According to a second aspect of this application, a heat exchange device is provided, comprising the aforementioned heat dissipation fins.

[0015] In some embodiments, at least two heat exchange tubes are included, and adjacent heat exchange tubes are connected by heat dissipation fins.

[0016] In some embodiments, the number of heat exchange tubes is at least three, and at least two fin arrangement areas are formed between adjacent heat exchange tubes, wherein the arrangement density of the heat dissipation fins in the at least two fin arrangement areas varies in a gradient.

[0017] In some embodiments, the heat dissipation fins have at least a first end face, and the heat exchange tube is mounted at a predetermined angle to the first end face in the width direction.

[0018] In some embodiments, the included angle is 0°-20°.

[0019] In some embodiments, the heat dissipation fins are connected to the heat exchange tube via surface contact.

[0020] In some embodiments, the heat exchange tube is provided with a fluid channel, and the inner wall of the fluid channel is at least partially provided with a spiral groove or a corrugated structure.

[0021] In some embodiments, a manifold is also included, with the manifold installed at both ends of the heat exchange tube, so that the heat exchange tube and the manifold together form a medium flow path.

[0022] In some embodiments, a harmonica tube is also included, with at least one of the manifolds having the harmonica tube mounted on it.

[0023] According to a third aspect of this application, an air conditioning system is provided, including the aforementioned heat exchange device.

[0024] According to a fourth aspect of this application, a vehicle is provided, including the aforementioned air conditioning system or heat exchange device.

[0025] In the heat dissipation fins of this application embodiment, by designing the condensation fins as a honeycomb structure, the heat exchange efficiency of the honeycomb structure can be greatly improved per unit volume, and it has a smaller size and lighter weight. Due to the regularity of the honeycomb structure, the air resistance of the fins can also be reduced. In addition, due to the high stability of the honeycomb structure, the structural strength of the heat dissipation fins is stronger.

[0026] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0029] Figure 1 This is a schematic diagram of the overall structure of the heat exchange device provided in an exemplary embodiment of this application;

[0030] Figure 2 This is a schematic diagram of the installation structure of the heat dissipation fins and heat exchange tubes provided in an exemplary embodiment of this application;

[0031] Figure 3 This is a side view of the heat dissipation fins and heat exchange tubes installed in an exemplary embodiment of this application.

[0032] Figure 4 This is a cross-sectional structural diagram of the heat exchange tube provided in an exemplary embodiment of this application.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1-Heat dissipation fins, 11-Honeycomb unit, 111-Through hole, 12-Fin arrangement area, 13-First end face, 14-Channel centerline;

[0035] 2-Heat exchange tube, 21-Fluid channel, 211-Helical groove, 212-Smooth wall surface;

[0036] 3-Manifold;

[0037] 4-Harmonica tube. Detailed Implementation

[0038] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0039] In existing condensers, the fin design is usually louvered or similar, which makes it difficult to simultaneously meet the requirements of high heat dissipation, lightweight, high strength and simple manufacturing. It is also difficult to meet the current demand for high efficiency, reliability and lightweight in air conditioning systems. Therefore, condensers need to be improved.

[0040] A first aspect of this application provides a heat dissipation fin, see [link to relevant documentation]. Figures 1 to 2 The heat dissipation fins include heat dissipation fins 1, which are constructed in a honeycomb structure. It can be understood that the honeycomb structure of the heat dissipation fins 1 provides a larger heat dissipation area within the same volume, thus enabling a smaller heat exchange device, a larger unit heat dissipation area, higher heat exchange efficiency, and lighter weight, achieving high efficiency, lightweight design, and low air resistance. Furthermore, due to the high stability of the honeycomb structure, its strong resistance to bending and compression makes the fins highly stable and less prone to deformation, collapse, or curling, resulting in a stronger structural structure for the heat exchange device, making it more suitable for heat exchange applications in vibrating environments such as automotive applications. The regular structure of the honeycomb fins reduces airflow around and separation, facilitating uniform air penetration throughout the heat exchange zone, reducing air resistance, and further improving heat exchange efficiency. In addition, due to the high airflow velocity, the regular honeycomb structure of the heat dissipation fins 1 reduces dust accumulation and improves self-cleaning capabilities.

[0041] In some implementations, please refer to Figures 1 to 2 The heat dissipation fin 1 includes multiple honeycomb units 11, which are connected to form a honeycomb structure. At least some of the walls of the honeycomb units 11 are provided with multiple through holes 111. It can be understood that the honeycomb structure of the heat dissipation fin 1 is formed by combining multiple honeycomb units 11 according to a set arrangement rule. The cross-sectional shape of the honeycomb unit 11 can be set to a regular hexagon, rhombus, triangle, etc., and its cross-sectional shape is not limited. Typically, the cross-sectional shape of the honeycomb unit 11 is a regular hexagon. Each honeycomb unit 11 extends a set length along its centerline. The walls of adjacent honeycomb units 11 are fitted together to form a honeycomb pattern, which can also be called a lattice pattern. Compared with the louvered, rectangular, and wavy fins in the prior art, the honeycomb structure heat dissipation fin 1 has a larger heat dissipation area, better heat dissipation effect, higher heat dissipation efficiency per unit area, and smaller volume. Multiple through holes 111 are provided on the wall surface of some or all of the honeycomb cells 11 to form a porous fin structure. These through holes 111 penetrate the wall surface of the honeycomb cells 11, so that these through holes 111 are interconnected, which is used to enhance airflow disturbance and heat exchange capacity.

[0042] The wall thickness of the heat dissipation fin 1 is typically set to 0.05mm-0.1mm. For example, the wall thickness can be 0.06mm, 0.08mm, or 0.09mm. The side length can be 1mm-2mm. For example, the side length can be 1.2mm, 1.4mm, 1.6mm, or 1.8mm. The through hole 111 is set to 0.2mm-0.5mm. For example, the through hole 111 is set to 0.3mm or 0.4mm. The heat dissipation fins of this structure can reduce weight, improve heat dissipation efficiency, and have a certain strength.

[0043] The through holes 111 are evenly distributed on the wall surface of the honeycomb unit 11, ensuring that the gaps between the through holes 111 are the same. This facilitates airflow through the through holes 111 on the walls of different honeycomb units 11, promoting airflow circulation. Furthermore, the arrangement of the through holes 111 on the honeycomb wall of each honeycomb unit 11 is identical. The honeycomb unit 11 is made of metal such as copper or aluminum and is fixedly connected to the outer wall surface of the heat exchange tube 2 by brazing, forming a highly efficient heat exchange unit.

[0044] In some embodiments, the honeycomb structure of the heat dissipation fin 1 is a variable aperture honeycomb structure. It can be understood that the honeycomb structure of the heat dissipation fin 1 comprises multiple honeycomb units 11. The variable aperture honeycomb structure has two variations. The first variation is that the same honeycomb unit 11 of the heat dissipation fin 1 has a variable aperture along the centerline of its airflow channel. This allows the aperture of the honeycomb unit 11 to be gradually changed along the airflow direction, and the wall thickness can also be changed simultaneously. For example, the aperture of the honeycomb unit 11 gradually decreases from the windward direction to the outlet direction, with a larger aperture at one end and a smaller aperture at the other. The larger aperture reduces the initial airflow resistance, allowing the airflow to enter the honeycomb structure more evenly and avoiding local congestion. The smaller aperture increases airflow disturbance, enhancing convective heat transfer. At the outlet section, the reduced aperture enhances disturbance, forcing the airflow to fully contact the fins, significantly reducing the temperature gradient in the outlet area. This avoids the phenomenon in traditional uniform aperture structures where the heat transfer capacity decreases due to airflow heating at the outlet section, easily forming local high-temperature zones. The second type involves designing variable aperture heat dissipation fins 1 along the direction of the heat exchange tube 2 in the same fin arrangement area 12, so as to better adapt to the heat dissipation requirements in the direction of the heat dissipation medium flow in the same heat exchange tube 2 or the same group of heat exchange tubes 2.

[0045] In some embodiments, the heat dissipation fins 1 are at least partially composed of a metal foam structure to facilitate heat dissipation and weight reduction. Metal foam is a porous metallic material that possesses the strength, thermal conductivity, and high-temperature resistance of metals, while also exhibiting the low density, high specific surface area, and high damping performance of foam structures. For example, the metal foam may be open-cell aluminum foam or nickel foam, which has a three-dimensional open channel structure, increasing the surface area of ​​the heat dissipation fins 1 and improving heat dissipation performance. The heat dissipation fins 1 with the metal foam structure are also connected to the heat exchange tube 2 via brazing, forming a high-strength heat conduction interface.

[0046] According to a second aspect provided in this application, a heat exchange device is provided, including the aforementioned heat dissipation fins. Since this heat exchange device possesses all the technical features of heat dissipation fins, it also possesses all their technical effects.

[0047] In some embodiments, at least two heat exchange tubes are included, with adjacent heat exchange tubes connected by heat dissipation fins. It is understood that the heat exchange tube 2 is one of the core components of the condenser in a refrigeration and air conditioning system. It is a heat exchange tube used to efficiently release heat during the condensation of refrigerant from a high-temperature gaseous state to a liquid state. The heat exchange tube 2 is typically configured with a relatively flat rectangular or elliptical cross-section, with inlet or outlet ports at both ends, which are usually connected to a manifold 3. The heat exchange tube 2 has a fluid channel 21 for refrigerant flow along its extension direction. When the high-temperature, high-pressure gaseous refrigerant flows inside the heat exchange tube 2, it transfers its heat through the tube wall to the outside of the tube for heat exchange. There are at least two heat exchange tubes 2, with heat dissipation fins 1 sandwiched between them to enhance heat exchange between the heat exchange tube 2 and the outside environment. The number of heat exchange tubes 2 can be multiple, exemplarily four, six, ten, or more. The number of heat exchange tubes 2 is specifically set according to the heat dissipation requirements. The heat exchange tubes 2 are usually arranged parallel or substantially parallel to facilitate the installation of the heat dissipation fins 1.

[0048] In some implementations, please refer to Figures 1 to 2The heat exchange tubes 2 are at least three in number, and at least two fin arrangement areas 12 are formed between adjacent heat exchange tubes 2. The arrangement density of the heat dissipation fins 1 in the at least two fin arrangement areas 12 varies gradually. It can be understood that the number of heat exchange tubes 2 is set to multiple, and heat dissipation fins 1 are arranged between the multiple heat exchange tubes 2 to form at least two fin arrangement areas 12. The fin arrangement area 12 is the area between heat exchange tubes 2 with heat dissipation fins 1 already installed. The arrangement density of the heat dissipation fins 1 in the at least two fin arrangement areas 12 is different from each other, and their arrangement density varies gradually. In other words, the gradient change in arrangement density means that the arrangement density increases or decreases along the arrangement direction of the fin arrangement area. The arrangement density can increase or decrease sequentially, or it can increase or decrease intermittently. The fin arrangement density increases or decreases intermittently, and the fin arrangement density of some adjacent fin arrangement areas 12 remains consistent. After passing through a fin arrangement area 12 with a consistent arrangement density, the arrangement density of subsequent fin arrangement areas increases or decreases according to the previous arrangement pattern. For example, there are four fin arrangement areas 12 arranged in one direction, and the arrangement density of the four fin arrangement areas can increase or decrease sequentially. Alternatively, the arrangement density of the four fin arrangement areas can be the same for the first and second fin arrangement areas, and the arrangement density of the second, third, and / or fourth fin arrangement areas can increase or decrease sequentially, thus forming a gradient arrangement of heat dissipation fins 1 between different fin arrangement areas 12. In practical applications, the refrigerant flow process in the heat exchange device is a phase change from a high-temperature, high-pressure gaseous state to a low-temperature, low-pressure liquid. The gradient arrangement of the heat dissipation fins 1 between the fin arrangement areas 12 optimizes the heat transfer distribution and air resistance matching relationship. Specifically, the gradient distribution can accurately match the flow of the refrigerant and the phase change heat release process. That is, the denser fin arrangement area 12 of the heat dissipation fins 1 improves heat exchange and optimizes heat flow transfer, while the sparser fin arrangement area 12 of the heat dissipation fins 1 can improve airflow throughput and optimize wind resistance distribution. Thus, while reducing wind resistance overall, it can improve the heat dissipation performance of the heat exchange device, enabling the heat exchange device to achieve efficient and stable heat exchange under different operating conditions, especially performing better in variable load and high heat flux density application scenarios.

[0049] In some implementations, please refer to Figures 1 to 3The heat dissipation fins 1 have at least a first end face 13. The channel centerline 14 of the heat dissipation fins 1 is installed at a set angle to the first end face 13, or the heat exchange tube 2 is installed at a set angle to the first end face 13 in the width direction. The angle is set so that the channel centerline 14 of the heat dissipation fins 1 or the tube wall of the heat exchange tube 2 is parallel to the air inlet direction to adapt to the air inlet angle and reduce wind resistance. The channel centerline 14 is the centerline of the honeycomb unit 11. It can be understood that the overall structure of the condensation assembly is roughly a flat cuboid structure. The plane containing one end face of the heat dissipation fins 1 is the first end face 13. For example, the end face of the air inlet end of the heat dissipation fins 1 is the first end face 13. The width direction of the heat exchange tube 2 is the line connecting the two points of its cross-section perpendicular to the length extension direction. The arrangement of the heat dissipation fins 1 or the heat exchange tube 2 matches the air inlet angle during use to reduce wind resistance and improve air inlet efficiency. Typically, the angle of the heat dissipation fins 1 or heat exchange tubes 2 is such that the centerline of the honeycomb unit 11 of the heat dissipation fins 1 or the wall surface where the heat exchange tube 2 connects to the heat dissipation fins 1 is parallel or approximately parallel to the air intake direction, thereby improving air intake efficiency. Typically, the angle between the channel centerline 14 of the heat dissipation fins 1 or the width direction of the heat exchange tube 2 and the first end face 13 is 0°-20°. The channel centerline 14 is also the air duct centerline of the honeycomb unit 11. For example, its value is determined according to the condenser assembly and the air intake direction, and can be 3°, 6°, 9°, 12°, 15°, or 18°, etc., to facilitate adjustment of the condenser assembly's installation direction to align with the airflow direction, reduce wind resistance, avoid flow separation and backflow, and improve the overall air duct efficiency of the condenser. The inclined structural design of the heat dissipation fins 1 or heat exchange tubes 2 makes it easier to coordinate with aerodynamic paths in the overall vehicle or air conditioning system layout, enhancing the synergistic performance of heat transfer and wind resistance. Here, the air intake direction is the flow path direction of air entering the condenser assembly.

[0050] In some implementations, please refer to Figures 1 to 3The heat dissipation fin 1 has at least a first end face 13. The channel centerline 14 of the heat dissipation fin 1 is installed at a predetermined angle to the first end face 13. The heat exchange tube 2 is installed at a predetermined angle to the first end face 13 in the width direction. The angle is set such that the channel centerline 14 of the heat dissipation fin 1 and the tube wall of the heat exchange tube 2 are parallel to the air inlet direction. The angle allows the condensing assembly to be better adapted to the air inlet angle to reduce wind resistance. The channel centerline 14 is the centerline of the honeycomb unit 11. It can be understood that the overall structure of the condensing assembly is roughly a flat cuboid structure. The plane containing one end face of the heat dissipation fin 1 is the first end face 13. For example, the end face of the air inlet end of the heat dissipation fin 1 is the first end face 13. The width direction of the heat exchange tube 2 is the line connecting the two points of its cross-section perpendicular to its length extension direction. The angle between the heat dissipation fins 1 and the heat exchange tube 2 is such that the center line of the honeycomb unit 11 of the heat dissipation fins 1 is parallel or approximately parallel to the wall surface where the heat exchange tube 2 connects to the heat dissipation fins 1 and the air inlet direction, thereby improving air inlet efficiency. Typically, the angle between the heat dissipation fins 1 or the heat exchange tube 2 and the first end face 13 is 0°-20°. For example, the value is determined according to the condenser assembly and the air inlet direction, and can be 3°, 6°, 9°, 12°, 15°, or 18°, etc., to facilitate adjustment of the condenser assembly's installation direction to align with the air inlet direction, reduce wind resistance, avoid flow separation and backflow, and improve the overall fluid flow efficiency of the condenser. The air inlet direction refers to the flow path direction of air entering the condenser assembly.

[0051] In some embodiments, the heat dissipation fins 1 and the heat exchange tube 2 are connected by surface contact. It is understood that the cross-sectional shape of the heat exchange tube 2 can be rectangular, oblong, elliptical, or other shapes. The surface contact connection between the heat dissipation fins 1 and the heat exchange tube 2 increases the heat transfer area and improves heat transfer efficiency. Specifically, the connecting portions of the heat dissipation fins 1 and the heat exchange tube 2 are shaped to fit together to form a surface contact connection. Furthermore, the surface contact connection between the heat exchange tube 2 and the heat dissipation fins 1 is achieved through brazing, which not only ensures structural stability but also significantly expands the heat transfer contact area. The corresponding areas of the heat exchange tube 2 and the heat dissipation fins 1 are connected by mold pressing to achieve surface contact.

[0052] In some implementations, please refer to Figure 1 and Figure 4 The heat exchange tube 2 is provided with a fluid channel 21, and the inner wall of the fluid channel is at least partially provided with spiral grooves 211. It can be understood that the inner wall of the fluid channel 21 can be a smooth wall surface 212, or it can be a spiral groove 211 structure or a corrugated structure. The corrugated structure is a raised structure. The spiral groove 211 structure and the corrugated structure can enhance the internal turbulence of the refrigerant and improve the heat exchange efficiency. The heat exchange tube is usually flat, and its cross-section is rectangular, elliptical, or oblong.

[0053] In some implementations, please refer to Figure 1 The system also includes a manifold 3, with manifold 3 installed at both ends of the heat exchange tube 2, so that the heat exchange tube 2 and the manifold 3 together form a medium flow path. The manifold 3 is the core distribution component of the condenser in the refrigeration / air conditioning system, responsible for distributing the high-temperature, high-pressure gaseous refrigerant to each branch of the condenser (heat exchange tube 2), and simultaneously collecting the condensed liquid refrigerant and transporting it to the throttling device. It can be understood that through the cooperation of the manifold 3 and the heat exchange tube 2, the manifold 3 transports the medium to the heat exchange tube 2, forming a medium fluid path with the heat exchange tube 2. This fluid path can be S-shaped and flows out from the manifold 3. Specifically, the manifold 3 can be multi-segmented or single-segmented, and internally forms multiple flow channel areas connected to the heat exchange tube 2.

[0054] In some implementations, please refer to Figure 1 It also includes a harmonica tube 4, which is installed on at least one of the manifolds 3. The harmonica tube 4 has a parallel arrangement of porous heat exchange tubes 2. It is understood that the harmonica tube 4 is connected to the manifold 3 and is used to connect the condenser module to the external refrigeration system, ensuring continuous refrigerant circulation. The harmonica tube 4 is sealed to the manifold 3 by welding or mechanical means, and is configured with multiple ports according to the system layout to optimize flow path control.

[0055] A third aspect of this application provides an air conditioning system including the aforementioned heat exchange device. Since this air conditioning system possesses all the technical features of the heat exchange device, it also possesses all its technical effects.

[0056] A fourth aspect of this application provides a vehicle that includes the aforementioned air conditioning system or heat exchange device. Since the vehicle possesses all the technical features of the air conditioning system or heat exchange device, it also possesses all its technical effects.

[0057] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0058] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0059] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0060] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A heat dissipation fin (1), characterized in that, The heat dissipation fins (1)(1) are constructed in a honeycomb structure.

2. The heat dissipation fins (1) according to claim 1, characterized in that, The heat dissipation fins (1) include multiple honeycomb units (11), which are connected to form a honeycomb structure. At least some of the honeycomb units (11) have multiple through holes (111) on their walls.

3. The heat dissipation fins (1) according to claim 2, characterized in that, The through holes (111) are evenly distributed on the wall surface of the honeycomb unit (11).

4. The heat dissipation fins (1) according to claim 2, characterized in that, The cell unit (11) has a wall thickness of 0.05mm-0.08mm and a side length of 1mm-2mm.

5. The heat dissipation fins (1) according to claim 1, characterized in that, The heat dissipation fins (1) have at least a first end face (13), and the channel center line (14) of the heat dissipation fins (1) is installed at a set angle with the first end face (13).

6. The heat dissipation fins (1) according to claim 5, characterized in that, The included angle is 0°-20°.

7. The heat dissipation fin (1) according to any one of claims 1-6, characterized in that, The honeycomb structure of the heat dissipation fins (1) is a variable aperture honeycomb structure.

8. The heat dissipation fin (1) according to any one of claims 1-6, characterized in that, The heat dissipation fins (1) are at least partially metal foam structures.

9. A heat exchange device, characterized in that, Includes the heat dissipation fins (1) as described in any one of claims 1-8.

10. The heat exchange device according to claim 9, characterized in that, It includes at least two heat exchange tubes (2), and adjacent heat exchange tubes (2) are connected by the heat dissipation fins (1).

11. The heat exchange device according to claim 10, characterized in that, The number of heat exchange tubes (2) is at least three, and at least two fin arrangement areas (12) are formed between adjacent heat exchange tubes (2), and the arrangement density of the heat dissipation fins (1) in the at least two fin arrangement areas (12) varies in a gradient.

12. The heat exchange device according to claim 10, characterized in that, The heat dissipation fins (1) have at least a first end face (13), and the heat exchange tube (2) is installed at a set angle to the first end face (13) in the width direction.

13. The heat exchange device according to claim 12, characterized in that, The included angle is 0°-20°.

14. The heat exchange device according to claim 10, characterized in that, The heat dissipation fins (1) are connected to the heat exchange tubes (2) by surface contact.

15. The heat exchange device according to any one of claims 10-14, characterized in that, The heat exchange tube (2) is provided with a fluid channel (21), and the inner wall of the fluid channel is provided with at least a portion of a spiral groove (211) or a corrugated structure.

16. The heat exchange device according to any one of claims 10-14, characterized in that, It also includes a manifold (3), with the manifold (3) installed at both ends of the heat exchange tube (2) so that the heat exchange tube (2) and the manifold (3) together form a medium flow path.

17. The heat exchange device according to claim 16, characterized in that, It also includes a harmonica tube (4), and at least one of the manifolds (3) is fitted with the harmonica tube (4).

18. An air conditioning system, characterized in that, Including the heat exchange device described in any one of claims 9-17.

19. A vehicle, characterized in that, It includes the heat exchange device according to any one of claims 9-17 or the air conditioning system according to claim 18.

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