Heat exchanger

Abstract

The utility model relates to the technical field of refrigeration, in particular to a heat exchanger. The utility model provides a heat exchanger which comprises a first heat exchange assembly, a second heat exchange assembly and a draught fan, the first heat exchange assembly comprises a first heat exchange structure and a plurality of first heat exchange pipes, the first heat exchange pipes are arranged in the first heat exchange structure in a penetrating mode, and at least part of the cross section of the first heat exchange structure is in an arc shape; the second heat exchange assembly comprises a second heat exchange structure and a plurality of second heat exchange pipes, the second heat exchange pipes are arranged in the second heat exchange assembly in a penetrating mode, and the fan is arranged between the first heat exchange assembly and the second heat exchange assembly. The heat exchanger has the advantages that the arc-shaped structure can increase the contact area of the first heat exchange assembly and air to achieve high heat exchange efficiency. The fan is located between the first heat exchange assembly and the second heat exchange assembly, so that air passes through the first heat exchange assembly and the second heat exchange assembly from two directions, and the heat exchange efficiency of the heat exchanger is further optimized.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigeration, in particular to a heat exchanger. Background Art

[0002] As an important component of refrigeration systems such as air conditioners, heat exchangers determine the cooling effect of air conditioners. Therefore, the heat exchange efficiency of heat exchangers plays a vital role in the cooling efficiency of refrigeration systems.

[0003] Existing heat exchangers typically consist of a heat exchange structure and heat exchange tubes. The heat exchange structure includes components such as fins to increase the contact area with the air, and the heat exchange tubes are installed within the heat exchange structure. The heat exchange structure is usually designed as a straight plate for easy processing and assembly, but heat exchangers using this heat exchange structure have low heat exchange efficiency. Some heat exchangers have replaced the heat exchange structure with a curved structure to increase the contact area between the heat exchange structure and the air, but the improvement in heat exchange efficiency is still not significant. Utility Model Content

[0004] In order to solve the above technical problems, the present invention provides a heat exchanger.

[0005] A heat exchanger includes: a first heat exchange component, including a first heat exchange structure and a plurality of first heat exchange tubes, the plurality of first heat exchange tubes being arranged in the first heat exchange structure, and at least part of the cross-section of the first heat exchange structure being arc-shaped; a second heat exchange component, including a second heat exchange structure and a plurality of second heat exchange tubes, the plurality of second heat exchange tubes being arranged in the second heat exchange component; and a fan, arranged between the first heat exchange component and the second heat exchange component.

[0006] With this arrangement, since the heat exchanger includes a first heat exchange component and a second heat exchange component, and the first heat exchange component has an arc-shaped structure, the contact area between the first heat exchange component and the air is large, resulting in high heat exchange efficiency. The fan accelerates air flow, and since the fan is located between the first and second heat exchange components, air passes through the first and second heat exchange components from both directions. Therefore, neither the first nor the second heat exchange component exchanges heat only with air that has already exchanged heat with the other, allowing both the first and second heat exchange components to maintain high heat exchange efficiency.

[0007] In one embodiment, the side of the first heat exchange component and the second heat exchange component close to the fan is the inner side, and the side away from the fan is the outer side; the first heat exchange tube is arranged at least to form a first layer, a second layer and a third layer along the direction away from the fan, and the distance between the first heat exchange tube in the second layer and the inner side of the first heat exchange component is greater than the distance between the first heat exchange tube in the first layer and the inner side of the first heat exchange component; the distance between the first heat exchange tube in the third layer and the inner side of the first heat exchange component is greater than the distance between the first heat exchange tube in the second layer and the inner side of the first heat exchange component.

[0008] In one embodiment, the first heat exchange tubes in the first layer, the second layer and the third layer are evenly spaced along the length direction of the first heat exchange structure; the spacing A1 of the first heat exchange tubes in the first layer, the spacing A2 of the first heat exchange tubes in the second layer, and the spacing A3 of the first heat exchange tubes in the third layer are all the same.

[0009] In one embodiment, one end of the first heat exchange component abuts against one end of the second heat exchange component, and the abutted end of the first heat exchange component is the upper end, and the other end is the lower end;

[0010] The first heat exchange tube in the first layer near the lower end of the first heat exchange component is a first bottom heat exchange tube, the first heat exchange tube in the second layer near the lower end of the first heat exchange component is a second bottom heat exchange tube, and the first heat exchange tube in the third layer near the lower end of the first heat exchange component is a third bottom heat exchange tube, and the distance A4 between the first bottom heat exchange tube and the second bottom heat exchange tube is the same as the distance A5 between the third bottom heat exchange tube and the second bottom heat exchange tube.

[0011] In one embodiment, the A1 satisfies: 15 mm ≤ A1 ≤ 26 mm; and / or the A4 satisfies: 12 mm ≤ A1 ≤ 25 mm, the first bottom heat exchange tube and the third bottom heat exchange tube are closer to the lower end of the first heat exchange assembly than the second bottom heat exchange tube, and the connecting line between the first bottom heat exchange tube, the second bottom heat exchange tube and the third bottom heat exchange tube is a triangle.

[0012] In one embodiment, the second heat exchange tube is arranged in a direction away from the fan to form at least a fourth layer, a fifth layer and a sixth layer, and the distance between the second heat exchange tube in the fourth layer and the inner side of the second heat exchange component is greater than the distance between the second heat exchange tube in the fifth layer and the inner side of the second heat exchange component; the distance between the second heat exchange tube in the sixth layer and the inner side of the second heat exchange component is greater than the distance between the second heat exchange tube in the fifth layer and the inner side of the second heat exchange component.

[0013] In one embodiment, the second heat exchange tubes in the fourth layer, the fifth layer and the sixth layer are evenly spaced along the length direction of the second heat exchange structure; the spacing B1 of the second heat exchange tubes in the fourth layer, the spacing B2 of the second heat exchange tubes in the fifth layer, and the spacing B3 of the second heat exchange tubes in the sixth layer are all the same.

[0014] In one embodiment, one end of the first heat exchange component abuts against one end of the second heat exchange component, and the abutted end of the second heat exchange component is the upper end, and the other end is the lower end;

[0015] The second heat exchange tube in the fourth layer close to the lower end of the second heat exchange component is the fourth bottom heat exchange tube, the second heat exchange tube in the fifth layer close to the lower end of the second heat exchange component is the fifth bottom heat exchange tube, and the second heat exchange tube in the sixth layer close to the lower end of the second heat exchange component is the sixth bottom heat exchange tube, and the distance B4 between the fourth bottom heat exchange tube and the fifth bottom heat exchange tube is the same as the distance B5 between the sixth bottom heat exchange tube and the fifth bottom heat exchange tube.

[0016] In one embodiment, the first heat exchange assembly includes a plurality of flow paths, each of the flow paths being connected to at least four of the first heat exchange tubes, and the heat exchange medium in the flow paths flows from the first heat exchange tube close to the fan to the first heat exchange tube far from the fan, and two of the four first heat exchange tubes are disposed close to the fan;

[0017] The second heat exchange component includes multiple flow paths, each of which is connected to at least four second heat exchange tubes, and the heat exchange medium in the flow path flows from the second heat exchange tube close to the fan to the second heat exchange tube away from the fan, and two of the four second heat exchange tubes are arranged close to the fan.

[0018] In one embodiment, along the direction away from the fan, the thickness of the first heat exchange structure is H, and the thickness of the second heat exchange structure is L, which satisfy: 26 mm ≤ H ≤ 35 mm, 26 mm ≤ L ≤ 30 mm.

[0019] Compared with the existing technology, the heat exchanger provided by the present invention improves the heat exchange efficiency of the heat exchanger by setting a first heat exchange component and a second heat exchange component, and setting a fan between the two. The two heat exchange components work together to improve the layout position, size and number of the heat exchange tubes in the first heat exchange component and the second heat exchange component to further optimize the heat exchange capacity of the heat exchanger. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1A cross-sectional view of one embodiment of the heat exchanger provided by the present utility model;

[0021] Figure 2 This is a schematic structural diagram of one embodiment of the heat exchanger provided by the present utility model;

[0022] Figure 3 A cross-sectional view of one embodiment of the first heat exchange component and the second heat exchange component provided by the present invention;

[0023] Figure 4 This is a schematic diagram of flow path communication between the first heat exchange component and the second heat exchange component in one embodiment of the present invention;

[0024] Figure 5 This is a flow path connection diagram of another embodiment of the first heat exchange component provided by the present utility model.

[0025] The symbols in the figure mean the following:

[0026] 100. Heat exchanger; 10. First heat exchange component; 11. First heat exchange structure; 12. First heat exchange tube; 121. First bottom heat exchange tube; 122. Second bottom heat exchange tube; 123. Third bottom heat exchange tube; 13. First layer; 14. Second layer; 15. Third layer; 20. Second heat exchange component; 21. Second heat exchange structure; 22. Second heat exchange tube; 221. Fourth bottom heat exchange tube; 222. Fifth bottom heat exchange tube; 223. Sixth bottom heat exchange tube; 23. Fourth layer; 24. Fifth layer; 25. Sixth layer; 30. Fan; 40. Housing; 41. Heat dissipation port; 50. U-shaped tube; 60. Flow path. DETAILED DESCRIPTION

[0027] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0028] It should be noted that when a mechanism is referred to as being "fixed to" or "set on" another mechanism, it may be directly on the other mechanism or there may be a central mechanism. When a mechanism is considered to be "connected to" another mechanism, it may be directly connected to the other mechanism or there may be a central mechanism at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are for illustrative purposes only and do not represent the only implementation method.

[0029] Furthermore, 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 the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0030] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it can mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it can mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature. When a first feature is "below," "below," or "below" a second feature, it can mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is lower in level than the second feature.

[0031] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more of the relevant listed items.

[0032] See Figure 1-Figure 2 The present invention provides a heat exchanger 100, comprising a first heat exchange assembly 10, a second heat exchange assembly 20, and a fan 30. The first heat exchange assembly 10 comprises a first heat exchange structure 11 and a plurality of first heat exchange tubes 12, which are disposed within the first heat exchange structure 11, and at least a portion of the first heat exchange structure 11 has an arc-shaped cross-section. The second heat exchange assembly 20 comprises a second heat exchange structure 21 and a plurality of second heat exchange tubes 22, which are disposed within the second heat exchange assembly 20. The fan 30 is disposed between the first heat exchange assembly 10 and the second heat exchange assembly 20. Thus, since the heat exchanger 100 comprises the first heat exchange assembly 10 and the second heat exchange assembly 20, and the first heat exchange assembly 10 has an arc-shaped structure, the contact area between the first heat exchange assembly 10 and the air is large, resulting in high heat exchange efficiency. The fan 30 can accelerate the flow of air, and since the fan 30 is located between the first heat exchange component 10 and the second heat exchange component 20, the wind will pass through the first heat exchange component 10 and the second heat exchange component 20 from two directions. Therefore, neither the first heat exchange component 10 nor the second heat exchange component 20 will only exchange heat with the air that has been heat exchanged with the other, so that the first heat exchange component 10 and the second heat exchange component 20 can maintain high heat exchange efficiency.

[0033] The side of the first heat exchange assembly 10 and the second heat exchange assembly 20 closer to the fan 30 is the inner side, and the side farther from the fan 30 is the outer side. The first heat exchange tubes 12 are arranged in a direction away from the fan 30 to form at least a first layer 13, a second layer 14, and a third layer 15. The distance between the first heat exchange tubes 12 in the second layer 14 and the inner side of the first heat exchange assembly 10 is greater than the distance between the first heat exchange tubes 12 in the first layer 13 and the inner side of the first heat exchange assembly 10. The distance between the first heat exchange tubes 12 in the third layer 15 and the inner side of the first heat exchange assembly 10 is greater than the distance between the first heat exchange tubes 12 in the second layer 14 and the inner side of the first heat exchange assembly 10. In this way, the first heat exchange tubes 12 form a three-layer pipeline structure in the first heat exchange structure 11. When air passes through the first heat exchange assembly 10, it will exchange heat with the three layers of first heat exchange tubes 12 in sequence, thereby improving the heat exchange efficiency between the first heat exchange assembly 10 and the air.

[0034] Further, see Figure 3-Figure 5 The first heat exchange tubes 12 in the first layer 13, the second layer 14, and the third layer 15 are evenly spaced along the length of the first heat exchange structure 11; the spacing A1 of the first heat exchange tubes 12 in the first layer 13, the spacing A2 of the first heat exchange tubes 12 in the second layer 14, and the spacing A3 of the first heat exchange tubes 12 in the third layer 15 are all the same. In this way, the spacing between the first heat exchange tubes 12 in each layer is the same, which is more convenient during processing and assembly. The spacing between the first heat exchange tubes 12 in the first layer 13, the second layer 14, and the third layer 15 is also the same, which is more conducive to uniform heat exchange in the first heat exchange assembly 10. Since the two ends of each first heat exchange tube 12 need to be connected by a U-shaped tube 50, the above arrangement can also facilitate the pre-processing of welding the U-shaped tube 50, and there is no need to prepare multiple U-shaped tubes 50 of different sizes to facilitate mass production.

[0035] Of course, in other embodiments, the spacing between the first heat exchange tubes 12 in each layer can also be set to be different according to different operating conditions. For example, when the heat dissipation demand is higher in the middle of the first heat exchange assembly 10 (the middle position along the length of the first heat exchange structure 11), the first heat exchange tubes 12 are arranged more densely there.

[0036] Furthermore, one end of the first heat exchange assembly 10 abuts one end of the second heat exchange assembly 20, with the abutted end of the first heat exchange assembly 10 being the upper end and the other end being the lower end. The first heat exchange tube 12 near the lower end of the first heat exchange assembly 10 in the first layer 13 is the first bottom heat exchange tube 121, the first heat exchange tube 12 near the lower end of the first heat exchange assembly 10 in the second layer 14 is the second bottom heat exchange tube 122, and the first heat exchange tube 12 near the lower end of the first heat exchange assembly 10 in the third layer 15 is the third bottom heat exchange tube 123. The distance A4 between the first bottom heat exchange tube 121 and the second bottom heat exchange tube 122 is the same as the distance A5 between the third bottom heat exchange tube 123 and the second bottom heat exchange tube 122. Thus, because the first heat exchange assembly 10 and the second heat exchange assembly 20 abut each other, they support each other, thereby improving the overall structural strength of the heat exchanger 100. Moreover, A4=A5 can also ensure good heat exchange uniformity at the end of the first heat exchange tube 12 which is difficult to be flush, and can also facilitate the pre-processing of the U-shaped tube 50, which will not be repeated here.

[0037] A1 satisfies: 15mm≤A1≤26mm; and / or A4 satisfies: 12mm≤A1≤25mm. This ensures the number of first heat exchange tubes 12 to ensure heat exchange efficiency, while also avoiding the unnecessary cost increase when the first heat exchange tubes 12 are too densely packed without much improvement in heat exchange efficiency.

[0038] Specifically, the first bottom heat exchange tube 121 and the third bottom heat exchange tube 123 are closer to the lower end of the first heat exchange assembly 10 than the second bottom heat exchange tube 122, and the connecting line between the first bottom heat exchange tube 121, the second bottom heat exchange tube 122 and the third bottom heat exchange tube 123 is a triangle. Because A4=A5, the three can form an isosceles triangle structure, which has better heat exchange uniformity and is more convenient during the processing process and the process of inspecting product qualification.

[0039] Preferably, A1 is set to 17 mm and A4 is set to 21 mm, or A1 is set to 19.05 mm and A4 is set to 16.05 mm. According to experiments, a balance between heat exchange efficiency and cost can be achieved at these values.

[0040] Similarly, the second heat exchange tubes 22 are arranged in at least a fourth layer 23, a fifth layer 24, and a sixth layer 25, along a direction away from the fan 30. The distance between the second heat exchange tubes 22 in the fourth layer 23 and the inner side of the second heat exchange assembly 20 is greater than the distance between the second heat exchange tubes 22 in the fifth layer 24. The distance between the second heat exchange tubes 22 in the sixth layer 25 and the inner side of the second heat exchange assembly 20 is greater than the distance between the second heat exchange tubes 22 in the fifth layer 24. In this way, the second heat exchange tubes 22 form a three-layer pipeline structure in the second heat exchange structure 21. When air passes through the second heat exchange assembly 20, it exchanges heat with the three layers of second heat exchange tubes 22 in sequence, thereby improving the heat exchange efficiency between the second heat exchange assembly 20 and the air.

[0041] Furthermore, the second heat exchange tubes 22 in the fourth layer 23, the fifth layer 24, and the sixth layer 25 are evenly spaced along the length of the second heat exchange structure 21; the spacing B1 between the second heat exchange tubes 22 in the fourth layer 23, the spacing B2 between the second heat exchange tubes 22 in the fifth layer 24, and the spacing B3 between the second heat exchange tubes 22 in the sixth layer 25 are all the same. This ensures that the spacing between the second heat exchange tubes 22 in each layer is the same, facilitating processing and assembly. Furthermore, the spacing between the second heat exchange tubes 22 in the fourth layer 23, the fifth layer 24, and the sixth layer 25 is also the same, further facilitating uniform heat exchange in the second heat exchange assembly 20. Since the two ends of each second heat exchange tube 22 need to be connected via a U-shaped tube 50, this arrangement also facilitates the pre-processing of the U-shaped tube 50 for welding, eliminating the need to prepare multiple U-shaped tubes 50 of different sizes to facilitate mass production.

[0042] Furthermore, one end of the first heat exchange component 10 abuts against one end of the second heat exchange component 20, and the abutted end of the second heat exchange component 20 is the upper end, and the other end is the lower end;

[0043] The second heat exchange tube 22 near the lower end of the second heat exchange assembly 20 in the fourth layer 23 is the fourth bottom heat exchange tube 221, the second heat exchange tube 22 near the lower end of the second heat exchange assembly 20 in the fifth layer 24 is the fifth bottom heat exchange tube 222, and the second heat exchange tube 22 near the lower end of the second heat exchange assembly 20 in the sixth layer 25 is the sixth bottom heat exchange tube 223. Furthermore, the distance B4 between the fourth bottom heat exchange tube 221 and the fifth bottom heat exchange tube 222 is the same as the distance B5 between the sixth bottom heat exchange tube 223 and the fifth bottom heat exchange tube 222. Thus, the distance between the fourth bottom heat exchange tube 221 and the fifth bottom heat exchange tube 222 being the same as the distance between the sixth bottom heat exchange tube 223 and the fifth bottom heat exchange tube 222 can ensure good heat exchange uniformity at the ends of the second heat exchange tube 22 that are difficult to align, and can also facilitate the pre-processing of the U-shaped tube 50. This will not be described in detail here.

[0044] When the first heat exchange component 10 and the second heat exchange component 20 are both filled with the first heat exchange tubes 12 and the second heat exchange tubes 22, during actual operation, some of the first heat exchange tubes 12 or the second heat exchange tubes 22 may not be able to exert a good heat exchange effect (for example, because the air flow rate at the position where the heat exchange tube is located is slow). In order to improve efficiency, it is necessary to extract the tubes. Since the air volume of the fan 30 is concentrated in the middle position (the middle position has been explained above), it is preferred to extract the heat exchange tubes at both ends of the first heat exchange component 10 and the second heat exchange component 20.

[0045] In addition, in order to ensure the efficiency of the heat exchanger 100 during actual operation, the first heat exchange component 10 includes multiple flow paths 60, each flow path 60 is connected to at least four first heat exchange tubes 12, and the heat exchange medium in the flow path 60 flows from the first heat exchange tube 12 close to the fan 30 to the first heat exchange tube 12 away from the fan 30, and at least two of the four first heat exchange tubes 12 are arranged close to the fan 30; the second heat exchange component 20 includes multiple flow paths 60, each flow path 60 is connected to at least four second heat exchange tubes 22, and two of the four second heat exchange tubes 22 are arranged close to the fan 30. Since the wind force near the fan 30 is relatively strong, the two heat exchange tubes in the flow path 60 are arranged close to the fan 30 to improve the heat exchange effect.

[0046] It should be explained that being arranged close to the fan 30 means that: in the first heat exchange component 10, two of the at least four first heat exchange tubes 12 belonging to the same flow path 60 are arranged in the first layer 13, and the first layer 13 is arranged closest to the fan 30, thereby improving the heat exchange effect of the flow path 60 in response to the wind force of the fan 30; in the second heat exchange component 20, two of the at least four second heat exchange tubes 22 belonging to the same flow path 60 are arranged in the fourth layer 23, and the fourth layer 23 is arranged closest to the fan 30, thereby improving the heat exchange capacity of the second heat exchange component 20.

[0047] Understandably, not all flow paths 60 can have two heat exchange tubes located close to the fan 30. When two heat exchange tubes are located on the same layer (e.g., both on the first layer 13 or the second layer 14), the two first heat exchange tubes 12 in the first layer 13 should be located close to the fan 30 to maximize airflow. Since the second and third layers 14 and 15 are farther from the fan 30, they can be located close to the ends of the first heat exchange assembly 10, avoiding the first heat exchange tubes 12 in the first layer 13 and providing space for the first heat exchange tubes 12 in the first layer 13. The same principle applies to the second heat exchange assembly 20 and will not be further elaborated here.

[0048] In the direction away from the fan 30, the thickness of the first heat exchange structure 11 is H, and the thickness of the second heat exchange structure 21 is L, satisfying the following conditions: 26mm≤H≤35mm, 26mm≤L≤30mm. This ensures that the first and second heat exchange structures 11, 21 are large enough to accommodate sufficient heat exchange tubes, while also preventing the first and second heat exchange structures 11, 21 from being too thick and occupying too much space in the heat exchanger 100.

[0049] Preferably, 8-12 first heat exchange tubes 12 are provided in the first heat exchange structure 11, and 4-8 second heat exchange tubes 22 are provided in the second heat exchange structure 21. In this embodiment, 10 first heat exchange tubes 12 are provided in the first heat exchange structure 11, and 6 second heat exchange tubes 22 are provided in the second heat exchange structure 21.

[0050] In addition, the heat exchanger 100 further includes a shell 40 . The first heat exchange component 10 , the second heat exchange component 20 and the fan 30 are all disposed inside the shell 40 . A heat dissipation port 41 is provided on the shell 40 for air flow.

[0051] Compared with the prior art, the heat exchanger 100 provided by the present invention improves the heat exchange efficiency of the heat exchanger 100 by setting a first heat exchange component 10 and a second heat exchange component 20, and setting a fan 30 therebetween, through the joint action of the two heat exchange components, and optimizes the layout position, size and number of the heat exchange tubes in the first heat exchange component 10 and the second heat exchange component 20 to further optimize the heat exchange capacity of the heat exchanger 100.

[0052] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A heat exchanger, characterized in that: include: A first heat exchange assembly (10) comprises a first heat exchange structure (11) and a plurality of first heat exchange tubes (12), wherein the plurality of first heat exchange tubes (12) are arranged in the first heat exchange structure (11), and at least a portion of the cross section of the first heat exchange structure (11) is arc-shaped; A second heat exchange component (20) includes a second heat exchange structure (21) and a plurality of second heat exchange tubes (22), wherein the plurality of second heat exchange tubes (22) are disposed in the second heat exchange component (20); A fan (30) is provided between the first heat exchange component (10) and the second heat exchange component (20).

2. The heat exchanger according to claim 1, characterized in that The side of the first heat exchange component (10) and the second heat exchange component (20) close to the fan (30) is the inner side, and the side away from the fan (30) is the outer side; The first heat exchange tube (12) is arranged in a direction away from the fan (30) to form at least a first layer (13), a second layer (14) and a third layer (15); the distance between the first heat exchange tube (12) in the second layer (14) and the inner side of the first heat exchange component (10) is greater than the distance between the first heat exchange tube (12) in the first layer (13) and the inner side of the first heat exchange component (10); and the distance between the first heat exchange tube (12) in the third layer (15) and the inner side of the first heat exchange component (10) is greater than the distance between the first heat exchange tube (12) in the second layer (14) and the inner side of the first heat exchange component (10).

3. The heat exchanger according to claim 2, characterized in that The first heat exchange tubes (12) in the first layer (13), the second layer (14) and the third layer (15) are evenly spaced along the length direction of the first heat exchange structure (11); the spacing A1 of the first heat exchange tubes (12) in the first layer (13), the spacing A2 of the first heat exchange tubes (12) in the second layer (14), and the spacing A3 of the first heat exchange tubes (12) in the third layer (15) are all the same.

4. The heat exchanger according to claim 3, characterized in that One end of the first heat exchange component (10) abuts against one end of the second heat exchange component (20), and the abutted end of the first heat exchange component (10) is the upper end, and the other end is the lower end; The first heat exchange tube (12) in the first layer (13) close to the lower end of the first heat exchange component (10) is a first bottom heat exchange tube (121), the first heat exchange tube (12) in the second layer (14) close to the lower end of the first heat exchange component (10) is a second bottom heat exchange tube (122), and the first heat exchange tube (12) in the third layer (15) close to the lower end of the first heat exchange component (10) is a third bottom heat exchange tube (123), and the distance A4 between the first bottom heat exchange tube (121) and the second bottom heat exchange tube (122) is the same as the distance A5 between the third bottom heat exchange tube (123) and the second bottom heat exchange tube (122).

5. The heat exchanger according to claim 4, characterized in that The A1 satisfies: 15 mm ≤ A1 ≤ 26 mm; and / or the A4 satisfies: 12 mm ≤ A1 ≤ 25 mm, the first bottom heat exchange tube (121) and the third bottom heat exchange tube (123) are closer to the lower end of the first heat exchange component (10) than the second bottom heat exchange tube (122), and the connecting line between the first bottom heat exchange tube (121), the second bottom heat exchange tube (122) and the third bottom heat exchange tube (123) is a triangle.

6. The heat exchanger according to any one of claims 1 to 5, characterized in that: The second heat exchange tube (22) is arranged in a direction away from the fan (30) to form at least a fourth layer (23), a fifth layer (24) and a sixth layer (25), wherein the distance between the second heat exchange tube (22) in the fourth layer (23) and the inner side of the second heat exchange component (20) is greater than the distance between the second heat exchange tube (22) in the fifth layer (24) and the inner side of the second heat exchange component (20); and the distance between the second heat exchange tube (22) in the sixth layer (25) and the inner side of the second heat exchange component (20) is greater than the distance between the second heat exchange tube (22) in the fifth layer (24) and the inner side of the second heat exchange component (20).

7. The heat exchanger according to claim 6, characterized in that The second heat exchange tubes (22) in the fourth layer (23), the fifth layer (24) and the sixth layer (25) are evenly spaced along the length direction of the second heat exchange structure (21); the spacing B1 of the second heat exchange tubes (22) in the fourth layer (23), the spacing B2 of the second heat exchange tubes (22) in the fifth layer (24), and the spacing B3 of the second heat exchange tubes (22) in the sixth layer (25) are all the same.

8. The heat exchanger according to claim 7, characterized in that One end of the first heat exchange component (10) abuts against one end of the second heat exchange component (20), and the abutted end of the second heat exchange component (20) is the upper end, and the other end is the lower end; The second heat exchange tube (22) in the fourth layer (23) close to the lower end of the second heat exchange component (20) is a fourth bottom heat exchange tube (221), the second heat exchange tube (22) in the fifth layer (24) close to the lower end of the second heat exchange component (20) is a fifth bottom heat exchange tube (222), and the second heat exchange tube (22) in the sixth layer (25) close to the lower end of the second heat exchange component (20) is a sixth bottom heat exchange tube (223), and the distance B4 between the fourth bottom heat exchange tube (221) and the fifth bottom heat exchange tube (222) is the same as the distance B5 between the sixth bottom heat exchange tube (223) and the fifth bottom heat exchange tube (222).

9. The heat exchanger according to any one of claims 1 to 5 or 7 to 8, characterized in that: The first heat exchange assembly (10) includes a plurality of flow paths (60), each of the flow paths (60) being connected to at least four of the first heat exchange tubes (12), and the heat exchange medium in the flow paths (60) flows from the first heat exchange tube (12) close to the fan (30) to the first heat exchange tube (12) away from the fan (30), and at least two of the four first heat exchange tubes (12) are arranged close to the fan (30); The second heat exchange component (20) includes a plurality of flow paths (60), each of the flow paths (60) is connected to at least four second heat exchange tubes (22), and the heat exchange medium in the flow paths (60) flows from the second heat exchange tube (22) close to the fan (30) to the second heat exchange tube (22) away from the fan (30), and at least two of the four second heat exchange tubes (22) are arranged close to the fan (30).

10. The heat exchanger according to any one of claims 1 to 5 or 7 to 8, characterized in that: Along the direction away from the fan (30), the thickness of the first heat exchange structure (11) is H, and the thickness of the second heat exchange structure (21) is L, satisfying: 26mm≤H≤35mm, 26mm≤L≤30mm.

Images