Heat exchanger and air conditioning system

Abstract

The utility model provides a kind of heat exchanger and air conditioning system. Heat exchanger includes first heat exchange structure;Two second heat exchange structures. The utility model provides heat exchanger and air conditioning system, by being set to three sections and being connected in turn to first heat exchange structure, form the shape of U shape, and the two ends of U shape are closed using second heat exchange structure, to form the slot space with only one opening, simultaneously the opening of slot space is set as air outlet, so that multiple sides of slot space can be air intake, to realize the purpose of five air intake of heat exchanger, effectively increase the air intake of heat exchanger and heat exchange area, improve unit energy efficiency, effectively reduce spare and accessory machining, improve production efficiency and reduce production cost.

Description

Technical Field

[0001] This utility model relates to the field of heat exchange technology, and in particular to a heat exchanger and air conditioning system. Background Technology

[0002] Existing heat exchangers typically employ two plate heat exchangers arranged in a V-shape, with a fan positioned at the V-shaped opening to force airflow through the two plate heat exchangers for heat exchange. However, with increasingly stringent national standards, the energy efficiency of these heat exchangers often fails to meet the requirements. Improving efficiency can only be achieved by increasing the size or number of heat exchangers. However, this increase significantly increases the floor space and operating costs of the air conditioning system. Furthermore, the V-shaped arrangement of the heat exchangers causes airflow to collide and create turbulence between the two plate heat exchangers, disrupting the airflow field and severely impacting both the heat exchanger's efficiency and the overall operating efficiency of the air conditioning system. Utility Model Content

[0003] In order to solve the technical problems of low energy efficiency and low heat exchange efficiency caused by the structure of heat exchangers in the prior art, a heat exchanger and air conditioning system is provided that uses a reasonably set first heat exchange structure and second heat exchange structure to form multiple air inlets to optimize heat exchange energy efficiency and air inlet flow field.

[0004] A heat exchanger, comprising:

[0005] A first heat exchange structure, comprising a first heat exchange section, a second heat exchange section and a third heat exchange section connected in sequence;

[0006] Two second heat exchange structures are respectively disposed at both ends of the first heat exchange structure, and the second heat exchange structures and the first heat exchange structure together form a trough-shaped space. The second heat exchange section constitutes the bottom of the trough-shaped space, and the second heat exchange structure constitutes the end face of the trough-shaped space.

[0007] An air outlet is provided on the portion of the trough-shaped space away from the second heat exchange section, and the first heat exchange section, the second heat exchange section, the third heat exchange section, and the second heat exchange structure all constitute the air inlet of the trough-shaped space.

[0008] The second heat exchange structure includes a first end heat exchange section, an end face baffle, and a second end heat exchange section arranged sequentially. The first end heat exchange section is disposed on the first heat exchange section, and the second end heat exchange section is disposed on the third heat exchange section. There is an installation gap between the first end heat exchange section and the second end heat exchange section. The end face baffle is disposed at the installation gap, and the end face baffle is sealed to the first end heat exchange section, the second end heat exchange section, and the second heat exchange section.

[0009] From the second heat exchange section to the air outlet, the distance between the first heat exchange section and the third heat exchange section gradually increases.

[0010] When the second heat exchange section is parallel to the horizontal plane, the first heat exchange section is inclined to the first side relative to the vertical plane; and / or, when the second heat exchange section is parallel to the horizontal plane, the third heat exchange section is inclined to the second side relative to the vertical plane.

[0011] The first end heat exchange section is inclined with the inclination of the first heat exchange section, and the edge of the end face baffle connected to the first end heat exchange section is inclined with the inclination of the first end heat exchange section; and / or, the second end heat exchange section is inclined with the inclination of the third heat exchange section, and the edge of the end face baffle is inclined with the inclination of the second end heat exchange section.

[0012] The heat exchanger also includes an auxiliary baffle, which is disposed between the end face baffle and the second heat exchange section. The auxiliary baffle, the first end heat exchange section, the second end heat exchange section, and the end face baffle together constitute the end face of the groove-shaped space.

[0013] A side heat exchange tube is provided in the first heat exchange section, the side heat exchange tube bends at the connection between the first heat exchange section and the first end heat exchange section and extends into the first end heat exchange section; and / or, a side heat exchange tube is provided in the third heat exchange section, the side heat exchange tube bends at the connection between the third heat exchange section and the second end heat exchange section and extends into the second end heat exchange section.

[0014] The heat exchanger further includes a distribution pipe disposed within the installation spacing and connected to all the side heat exchange pipes; and / or, the heat exchanger further includes a manifold disposed within the installation spacing and connected to all the side heat exchange pipes.

[0015] The second heat exchange section is provided with a bottom heat exchange tube, and the heat exchanger also includes a branch main pipe, which is connected to the branch pipe and all the bottom heat exchange tubes; and / or, the heat exchanger also includes a manifold, which is connected to the manifold and all the bottom heat exchange tubes.

[0016] The heat exchanger also includes two end plates, which are respectively disposed at both ends of the first heat exchange structure, and the first heat exchange part, the second heat exchange part, the third heat exchange part and the second heat exchange structure are all fixedly connected to the corresponding end plates.

[0017] The heat exchanger further includes a reinforcing structure located between the first heat exchange section and the second heat exchange section and / or between the third heat exchange section and the second heat exchange section, and the reinforcing structure is connected to the two end plates.

[0018] The reinforcing structure includes a tie rod and fasteners, the tie rod being fixedly connected to the two end plates via the fasteners.

[0019] The reinforcing structure also includes a sealing plate, the end of which is sealed to the corresponding end plate, and the edge of which is sealed to the second heat exchange section, the first heat exchange section and the third heat exchange section.

[0020] The first heat exchange structure includes a plurality of first fins, the shape of which is the same as that of the end plate, and all the first fins are arranged side by side with the end plate.

[0021] The heat exchanger also includes a top frame, which is located at the air outlet, and the top ends of the first heat exchange structure and the second heat exchange structure are fixedly connected to the top frame.

[0022] An air conditioning system includes the heat exchanger described above.

[0023] The heat exchanger and air conditioning system provided by this utility model are formed by setting the first heat exchange structure into three segments connected in sequence to form a U-shape, and using the second heat exchange structure to close both ends of the U-shape, thereby forming a slot-shaped space with only one opening. At the same time, the opening of the slot-shaped space is set as an air outlet, so that air can enter from multiple sides of the slot-shaped space. That is, air can enter through the first heat exchange section, the second heat exchange section, the third heat exchange section, and the two second heat exchange structures, thereby achieving the purpose of five-sided air intake of the heat exchanger. This effectively increases the air volume and heat exchange area of ​​the heat exchanger, improves the unit's energy efficiency, and the five-sided air intake can achieve a smooth airflow field, making the air velocity more uniform without changing the fan on the heat exchanger, further improving the heat exchanger's heat transfer coefficient. Moreover, by using the second heat exchange structure and the second heat exchange section, the bottom mounting chassis and other components in the prior art are replaced, and the connection between the first heat exchange structure and the second heat exchange structure is used for installation and support, effectively reducing the processing of parts, improving production efficiency, and reducing production costs. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a heat exchanger provided in an embodiment of the present utility model;

[0025] Figure 2 A side view of a heat exchanger provided in an embodiment of this utility model;

[0026] Figure 3 A cross-sectional view of a heat exchanger provided in an embodiment of this utility model;

[0027] Figure 4 Another side view of the heat exchanger provided in an embodiment of this utility model;

[0028] Figure 5 Another cross-sectional view of the heat exchanger provided in an embodiment of this utility model;

[0029] Figure 6 A bottom view of the heat exchanger provided in an embodiment of this utility model;

[0030] Figure 7 Another cross-sectional view of the heat exchanger provided in an embodiment of this utility model;

[0031] Figure 8 A schematic diagram of the end plate of the heat exchanger provided in an embodiment of this utility model;

[0032] Figure 9 A schematic diagram showing the combination of the first heat exchange section, the second heat exchange section, the third heat exchange section, the first end heat exchange section, and the second end heat exchange section of the heat exchanger provided in the embodiment of this utility model.

[0033] Figure 10 A schematic diagram of the structure of the first fin of the heat exchanger provided in an embodiment of this utility model;

[0034] Figure 11 A schematic diagram of the side heat exchange tube of the heat exchanger provided in an embodiment of this utility model;

[0035] Figure 12 A schematic diagram of the reinforcing structure of the heat exchanger provided in this embodiment of the utility model;

[0036] Figure 13 Another structural schematic diagram of the reinforcing structure of the heat exchanger provided in an embodiment of this utility model;

[0037] Figure 14 Another schematic diagram of the reinforcing structure of the heat exchanger provided in the embodiment of the present invention;

[0038] Figure 15 This is an exploded schematic diagram of a heat exchanger provided in an embodiment of the present invention;

[0039] In the picture:

[0040] 1. First heat exchange structure; 11. First heat exchange section; 12. Second heat exchange section; 13. Third heat exchange section; 2. Second heat exchange structure; 100. Channel-shaped space; 101. Air outlet; 21. First end heat exchange section; 22. End face baffle; 23. Second end heat exchange section; 14. Side heat exchange tube; 3. Auxiliary baffle; 4. Diverter tube; 5. Collector tube; 15. Bottom heat exchange tube; 6. End plate; 7. Reinforcing structure; 16. First fin; 17. Top frame. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining this utility model and are not intended to limit this utility model.

[0042] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0043] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate for the embodiments of the utility model described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0044] It should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "inner," and "outer," which indicate directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0045] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0046] Existing heat exchangers typically employ two plate heat exchangers arranged in a V-shape, with a fan positioned at the V-shaped opening to force airflow through the two plate heat exchangers for heat exchange. However, with increasingly stringent national standards, the energy efficiency of these heat exchangers often fails to meet the requirements. Improving efficiency can only be achieved by increasing the size or number of heat exchangers. However, this increase significantly increases the floor space and operating costs of the air conditioning system. Furthermore, the V-shaped arrangement of the heat exchangers causes airflow to collide and create turbulence between the two plate heat exchangers, disrupting the airflow field and severely impacting both the heat exchanger's efficiency and the overall operating efficiency of the air conditioning system.

[0047] Therefore, this application provides a method such as Figures 1 to 15The heat exchanger shown includes: a first heat exchange structure 1, which includes a first heat exchange section 11, a second heat exchange section 12, and a third heat exchange section 13 connected in sequence; two second heat exchange structures 2, which are respectively disposed at both ends of the first heat exchange structure 1, and the second heat exchange structures 2 and the first heat exchange structure 1 together form a trough-shaped space 100, the second heat exchange section 12 forming the bottom of the trough-shaped space 100, and the second heat exchange structure 2 forming the end face of the trough-shaped space 100; an air outlet 101 is provided on the part of the trough-shaped space 100 away from the second heat exchange section 12, and the first heat exchange section 11, the second heat exchange section 12, the third heat exchange section 13, and the second heat exchange structure 2 all constitute the air inlet of the trough-shaped space 100. By setting the first heat exchange structure 1 into three segments and connecting them sequentially to form a U-shape, and using the second heat exchange structure 2 to close both ends of the U-shape, a trough-shaped space 100 with only one opening is formed. The opening of the trough-shaped space 100 is then set as an air outlet 101, allowing air to enter from multiple sides of the trough-shaped space 100. This means air can enter through the first heat exchange section 11, the second heat exchange section 12, the third heat exchange section 13, and the two second heat exchange structures 2, achieving five-sided air intake for the heat exchanger. This effectively increases the airflow and heat exchange area of ​​the heat exchanger, improving unit energy efficiency. Furthermore, air intake from five sides creates a smooth and uniform airflow field, resulting in more uniform airflow without altering the fan on the heat exchanger, further improving the heat exchanger's heat transfer coefficient. Moreover, the second heat exchange structure 2 and the second heat exchange section 12 replace the existing bottom-mounted chassis, and the connection between the first heat exchange structure 1 and the second heat exchange structure 2 enables installation and support, effectively reducing component processing, improving production efficiency, and lowering production costs.

[0048] In one embodiment, the second heat exchange structure 2 includes a first end heat exchange part 21, an end face baffle 22, and a second end heat exchange part 23 arranged sequentially. The first end heat exchange part 21 is disposed on the first heat exchange part 11, and the second end heat exchange part 23 is disposed on the third heat exchange part 13. There is an installation gap between the first end heat exchange part 21 and the second end heat exchange part 23. The end face baffle 22 is disposed at the installation gap, and the end face baffle 22 is sealed to the first end heat exchange part 21, the second end heat exchange part 23, and the second heat exchange part 12. By dividing the second heat exchange structure 2 into a first end heat exchange section 21 and a second end heat exchange section 23, air intake and heat exchange can be achieved at the end of the heat exchanger, improving the heat exchanger's heat exchange capacity. Furthermore, the installation spacing allows for the provision of space for the installation of the heat exchanger's distribution pipes, manifolds, and related structures, preventing these structures from being located outside the heat exchanger and affecting its size. This effectively reduces the space occupied by the heat exchanger. Moreover, by distributing the first end heat exchange section 21 and the second end heat exchange section 23 on both sides of the end face baffle 22, the air intake at the end of the heat exchanger can be from the portion near the first heat exchange section 11 and the third heat exchange section 13. This, combined with the air intake of the first heat exchange section 11, the second heat exchange section 12, and the third heat exchange section 13, forms a smooth and uniform airflow field, resulting in more uniform air velocity without altering the fan on the heat exchanger, further improving the heat exchanger's heat transfer coefficient.

[0049] Preferably, from the second heat exchange section 12 to the air outlet 101, the distance between the first heat exchange section 11 and the third heat exchange section 13 gradually increases. That is, the first heat exchange section 11 and the third heat exchange section 13 are arranged in a shape similar to the V-shaped plate heat exchanger in the prior art. This ensures that the volume in the trough space 100 is sufficient to ensure that the air intake of the heat exchanger meets the heat exchange requirements. At the same time, it increases the size of the air outlet 101 to ensure the size of the fan installed at the air outlet 101, further ensuring the air intake of the heat exchanger.

[0050] In one implementation, when the second heat exchange section 12 is parallel to the horizontal plane, the first heat exchange section 11 is inclined to the first side relative to the vertical plane. By using the inclination of the first heat exchange section 11, the distance between the first heat exchange section 11 and the third heat exchange section 13 can be gradually increased. This also prevents the air inlet of the first heat exchange section 11 from directly impacting the air inlet of the third heat exchange section 13, effectively optimizing the airflow field in the slotted space 100, avoiding turbulence problems in the heat exchanger, and improving the heat transfer coefficient of the heat exchanger.

[0051] In another embodiment, when the second heat exchange section 12 is parallel to the horizontal plane, the third heat exchange section 13 is inclined to the second side relative to the vertical plane. By utilizing the inclination of the third heat exchange section 13, the distance between the first heat exchange section 11 and the third heat exchange section 13 can be gradually increased. This also prevents the airflow into the third heat exchange section 13 from directly impacting the airflow into the first heat exchange section 11, effectively optimizing the airflow field within the trough space 100, avoiding turbulence within the heat exchanger, and improving the heat transfer coefficient of the heat exchanger.

[0052] As another implementation method, such as Figure 1 As shown, when the second heat exchange section 12 is parallel to the horizontal plane, the first heat exchange section 11 is inclined to the first side relative to the vertical plane, and the third heat exchange section 13 is inclined to the second side relative to the vertical plane. In this arrangement, the first heat exchange section 11 and the third heat exchange section 13 are arranged in a shape similar to a V-shaped plate heat exchanger in the prior art. This ensures sufficient volume within the trough space 100 to meet the heat exchange requirements, while simultaneously increasing the size of the outlet 101 to accommodate the size of the fan installed at the outlet 101, further guaranteeing the airflow to the heat exchanger.

[0053] The first end heat exchange section 21 is inclined along with the inclination of the first heat exchange section 11. The edge of the end face baffle 22 connected to the first end heat exchange section 21 is also inclined along with the inclination of the first end heat exchange section 21. By setting the first end heat exchange section 21 at an inclination, the first end heat exchange section 21 is inclined relative to the second end heat exchange section 23. This not only ensures a reliable connection between the first end heat exchange section 21 and the first heat exchange section 11, preventing interference when the heat exchange tubes in the first heat exchange section 11 enter the first end heat exchange section 21, but also improves the air intake at the end face of the heat exchanger. This allows the air intake of the first end heat exchanger to match the air intake of the first heat exchange section 11, uniformly distributing the flow field and wind speed within the trough space 100, thereby avoiding turbulence within the heat exchanger and improving the heat transfer coefficient of the heat exchanger.

[0054] Similarly, the second end heat exchange section 23 tilts along with the tilt of the third heat exchange section 13, and the edge of the end face baffle 22 tilts along with the tilt of the second end heat exchange section 23. By tilting the second end heat exchange section 23 relative to the first end heat exchange section 21, a reliable connection can be established between the second end heat exchange section 23 and the third heat exchange section 13, avoiding interference when the heat exchange tubes in the third heat exchange section 13 enter the second end heat exchange section 23. This also improves the airflow at the end face of the heat exchanger, allowing the airflow in the second end heat exchanger to coordinate with the airflow in the third heat exchange section 13, uniformly distributing the flow field and wind speed within the trough space 100, thereby avoiding turbulence within the heat exchanger and improving the heat transfer coefficient.

[0055] Preferably, the first end heat exchange section 21 is inclined with the inclination of the first heat exchange section 11, the edge of the end face baffle 22 connected to the first end heat exchange section 21 is inclined with the inclination of the first end heat exchange section 21, the second end heat exchange section 23 is inclined with the inclination of the third heat exchange section 13, and the edge of the end face baffle 22 is inclined with the inclination of the second end heat exchange section 23. That is, at this time, the first heat exchange section 11 and the third heat exchange section 13 are arranged in a shape similar to the V-shaped plate heat exchanger in the prior art. The first end heat exchange section 21 and the second end heat exchange section 23 are also arranged in a V-shape along with the first heat exchange section 11 and the third heat exchange section 13. The installation gap formed between the first end heat exchange section 21 and the second end heat exchange section 23 is also V-shaped. In order to avoid too much gas entering the trough space 100 at the installation gap, the shape of the end face baffle 22 is also set as V-shaped, so that the end face baffle 22 and the first end heat exchange section 21 and the second end heat exchange section 23 are perfectly sealed, ensuring that there is no air leakage at the end face of the trough space 100. This ensures that the gas can only enter through the first heat exchange section 11, the second heat exchange section 12, the third heat exchange section 13 and the second heat exchange structure 2, thereby ensuring the heat exchange efficiency of the heat exchanger.

[0056] When installing the first heat exchange section 11 and the first end heat exchange section 21, the side heat exchange tube is first inserted into the first heat exchange section 11, and the end of the side heat exchange tube protrudes from the first heat exchange section 11. Then, the first end heat exchange section 21 is inserted onto the side heat exchange tube, and a bend is made at the connection position between the first heat exchange section 11 and the first end heat exchange section 21. The first end heat exchange section 21 is bent accordingly, so that the first heat exchange section 11 forms one side of the trough space 100, and the first end heat exchanger forms part of the end face of the trough space 100.

[0057] Similarly, when installing the third heat exchange section 13 and the second end heat exchange section 23, the side heat exchange tube is first inserted into the third heat exchange section 13, and the end of the side heat exchange tube protrudes from the third heat exchange section 13. Then, the second end heat exchange section 23 is inserted onto the side heat exchange tube, and the connection between the third heat exchange section 13 and the second end heat exchange section 23 is bent. The second end heat exchange section 23 is bent accordingly, so that the third heat exchange section 13 forms one side of the trough space 100, and the second end heat exchanger forms part of the end face of the trough space 100.

[0058] After both the first end heat exchange section 21 and the second end heat exchange section 23 are bent, an installation gap is naturally formed between the first end heat exchange section 21 and the second end heat exchange section 23. Then, the end face baffle 22 can be installed at the installation gap. At this time, the edge of the end face baffle 22 is reliably connected to both the first end heat exchange section 21 and the second end heat exchange section 23, preferably a sealed connection, to ensure the structural reliability of the heat exchanger.

[0059] Mounting plates are provided on the side where the first heat exchange section 21 connects to the end face baffle 22 and on the side where the second heat exchange section 23 connects to the end face baffle 22. The edge of the end face baffle 22 is also bent to form a mounting surface. The mounting surface is fitted and connected to the mounting plate, which facilitates the connection between the end face baffle 22 and the first heat exchange section 21 and the second heat exchange section 23, and also ensures reliable sealing between the end face baffle 22 and the first heat exchange section 21 and the second heat exchange section 23. This ensures that there is no air leakage at the end face of the trough space 100, and that gas can only enter through the first heat exchange section 11, the second heat exchange section 12, the third heat exchange section 13 and the second heat exchange structure 2, thereby ensuring the heat exchange efficiency of the heat exchanger.

[0060] Since the first end heat exchange section 21 and the second end heat exchange section 23 are arranged in a V-shape, a triangular-like gap is formed at the part of the first end heat exchange section 21 and the second end heat exchange section 23 near the second heat exchange section 12. In order to prevent air leakage in this triangular space, the heat exchanger also includes an auxiliary baffle 3. The auxiliary baffle 3 is disposed between the end face baffle 22 and the second heat exchange section 12. The auxiliary baffle 3, the first end heat exchange section 21, the second end heat exchange section 23, and the end face baffle 22 together constitute the end face of the trough-shaped space 100. The auxiliary baffle 3 further seals the end face of the trough-shaped space 100, thereby ensuring that there is no air leakage at the end face of the trough-shaped space 100. This ensures that the gas can only enter through the first heat exchange section 11, the second heat exchange section 12, the third heat exchange section 13, and the second heat exchange structure 2, thereby ensuring the heat exchange efficiency of the heat exchanger.

[0061] The first heat exchange section 11 is provided with a side heat exchange tube 14. The side heat exchange tube 14 is bent at the connection between the first heat exchange section 11 and the first end heat exchange section 21 and extends into the first end heat exchange section 21. This not only enables the refrigerant to be delivered into the first heat exchange section 11 and the first end heat exchange section 21, ensuring the heat exchange efficiency of the first heat exchange section 11 and the first end heat exchange section 21, but also enables the fixed connection of the first heat exchange section 11 and the first end heat exchange section 21 by utilizing the structural strength of the heat exchange tube. This overcomes the problems of complex structure and large number of parts in the prior art that require the use of frame support and other structures, effectively improving production efficiency and reducing production costs.

[0062] Similarly, a side heat exchange tube 14 is provided inside the third heat exchange section 13. The side heat exchange tube 14 is bent at the connection between the third heat exchange section 13 and the second end heat exchange section 23 and extends into the second end heat exchange section 23. This not only enables the refrigerant to be delivered into the first heat exchange section 11 and the first end heat exchange section 21, ensuring the heat exchange efficiency of the first heat exchange section 11 and the first end heat exchange section 21, but also utilizes the structural strength of the heat exchange tube to achieve a fixed connection between the first heat exchange section 11 and the first end heat exchange section 21. This overcomes the problems of complex structure and large number of parts in the prior art, which requires the use of frame support and other structures, and effectively improves production efficiency and reduces production costs.

[0063] The heat exchanger also includes a distribution pipe 4, which is disposed within the installation spacing and is connected to all the side heat exchange pipes 14. The distribution pipe 4 supplies refrigerant to all the side heat exchange pipes 14 to ensure reliable heat exchange in the first end heat exchange section 21, the first heat exchange section 11, the second end heat exchange section 23, and the second heat exchange section 12.

[0064] Similarly, the heat exchanger also includes a manifold 5, which is disposed within the installation spacing and is connected to all the side heat exchange tubes 14. The manifold 5 is used to collect the refrigerant after heat exchange in all the side heat exchange tubes 14, so as to ensure reliable heat exchange in the first end heat exchange section 21, the first heat exchange section 11, the second end heat exchange section 23 and the second heat exchange section 12.

[0065] The second heat exchange section 12 is provided with a bottom heat exchange tube 15. The heat exchanger also includes a main distribution pipe, which is connected to the distribution pipe 4 and all the bottom heat exchange tubes 15. By setting the bottom heat exchange tubes 15, the heat exchange reliability of the second heat exchange section 12 can be guaranteed. The main distribution pipe can simultaneously guarantee the refrigerant supply to the distribution pipe 4 and the bottom heat exchange tubes 15. Since the second heat exchange section 12 is directly opposite the air outlet 101, when the fan of the air outlet 101 generates negative pressure in the slotted space 100, the air volume flowing through the second heat exchange section 12 is larger than the air volume of the first heat exchange section 11 and the third heat exchange section 13. Therefore, the refrigerant supply to the bottom heat exchange tubes 15 in the second heat exchange section 12 is improved, thereby ensuring the heat exchange efficiency of the second heat exchange section 12, and thus ensuring the heat exchange efficiency of the heat exchanger.

[0066] Similarly, the heat exchanger also includes a manifold, which is connected to the manifold 5 and all the bottom heat exchange tubes 15. The manifold simultaneously ensures refrigerant collection from both the manifold 5 and the bottom heat exchange tubes 15. Since the second heat exchange section 12 is directly opposite the air outlet 101, when the fan at the air outlet 101 generates negative pressure within the trough space 100, the airflow through the second heat exchange section 12 is larger than that of the first heat exchange section 11 and the third heat exchange section 13. Therefore, the refrigerant in the bottom heat exchange tubes 15 of the second heat exchange section 12 is preferentially circulated, thereby ensuring the heat exchange efficiency of the second heat exchange section 12 and thus ensuring the overall heat exchange efficiency of the heat exchanger.

[0067] To further improve the structural strength of the heat exchanger, the heat exchanger also includes two end plates 6, which are respectively disposed at both ends of the first heat exchange structure 1. The first heat exchange part 11, the second heat exchange part 12, the third heat exchange part 13 and the second heat exchange structure 2 are all fixedly connected to the corresponding end plates 6. The two end plates 6 are used to further increase the connection strength between the first heat exchange structure 1 and the second heat exchange structure 2, thereby ensuring the structural reliability of the heat exchanger.

[0068] Furthermore, the heat exchanger also includes a reinforcing structure 7, which is located between the first heat exchange section 11 and the second heat exchange section 12 and / or between the third heat exchange section 13 and the second heat exchange section 12, and is connected to the two end plates 6. The reinforcing structure 7 strengthens the connection between the two end plates 6, further ensuring the structural strength of the heat exchanger.

[0069] As one embodiment, the reinforcing structure 7 includes a tie rod and fasteners. The tie rod is fixedly connected to the two end plates 6 by the fasteners. The tie rod is parallel to the bottom heat exchange tube 15. The two ends of the tie rod are fixedly connected to the corresponding end plates 6 by the fasteners. The structural strength of the tie rod can be used to ensure the reliability of the relative position between the two end plates 6, thereby ensuring the structural reliability of the first heat exchange structure 1 and the second heat exchange structure 2.

[0070] In another embodiment, the reinforcing structure 7 further includes a sealing plate, the end of which is sealed to the corresponding end plate 6, and the edge of which is sealed to the second heat exchange section 12, the first heat exchange section 11, and the third heat exchange section 13. The structural strength of the sealing plate ensures reliable relative positioning between the two end plates 6. Simultaneously, the sealing plate seals the spaces between the first heat exchange section 11 and the second heat exchange section 12, and between the third heat exchange section 13 and the second heat exchange section 12, thereby preventing air leakage between the first heat exchange section 11 and the second heat exchange section 12, and / or between the third heat exchange section 13 and the second heat exchange section 12. This ensures that gas can only enter through the first heat exchange section 11, the second heat exchange section 12, the third heat exchange section 13, and the second heat exchange structure 2, thus guaranteeing the heat exchange efficiency of the heat exchanger.

[0071] The first heat exchange structure 1 includes a plurality of first fins 16. The shape of the first fins 16 is the same as that of the end plate 6, and all the first fins 16 are arranged side by side with the end plate 6. By setting the first fins 16 to have the same shape as the end plate 6, the first heat exchange structure 1 can form an integral structure, thereby minimizing the number of heat exchanger components, reducing the production cost of the heat exchanger, and improving production efficiency.

[0072] The first fin 16 includes a first part, a second part and a third part connected in sequence. The first parts of all the first fins 16 are arranged side by side and together form a first heat exchange part 11 through the side heat exchange tubes 14 inserted therethrough. The second parts of all the first fins 16 are arranged side by side and together form a second heat exchange part 12 through the bottom heat exchange tubes 15 inserted therethrough. The third parts of all the first fins 16 are arranged side by side and together form a third heat exchange part 13 through the side heat exchange tubes 14 inserted therethrough.

[0073] The second heat exchange structure includes second fins, a portion of which are arranged in parallel to form a first end heat exchange section, and another portion of which are arranged in parallel to form a second end heat exchange section.

[0074] The heat exchanger also includes a top frame 17, which is disposed at the air outlet 101. The top ends of the first heat exchange structure 1 and the second heat exchange structure 2 are both fixedly connected to the top frame 17. The top frame 17 is used to fix the fan disposed at the air outlet 101, and also to create a sealed connection between the fan and the air outlet 101, ensuring that gas can only enter through the first heat exchange section 11, the second heat exchange section 12, the third heat exchange section 13, and the second heat exchange structure 2, thereby ensuring the heat exchange efficiency of the heat exchanger.

[0075] An air conditioning system includes the heat exchanger described above.

[0076] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A heat exchanger, characterized in that: include: The first heat exchange structure (1) includes a first heat exchange section (11), a second heat exchange section (12) and a third heat exchange section (13) connected in sequence. Two second heat exchange structures (2) are respectively disposed at both ends of the first heat exchange structure (1), and the second heat exchange structures (2) and the first heat exchange structure (1) together form a trough-shaped space (100). The second heat exchange part (12) constitutes the bottom of the trough-shaped space (100), and the second heat exchange structure (2) constitutes the end face of the trough-shaped space (100). An air outlet (101) is provided on the portion of the trough space (100) away from the second heat exchange section (12). The first heat exchange section (11), the second heat exchange section (12), the third heat exchange section (13) and the second heat exchange structure (2) all constitute the air inlet of the trough space (100).

2. The heat exchanger of claim 1, wherein: The second heat exchange structure (2) includes a first end heat exchange part (21), an end face baffle (22), and a second end heat exchange part (23) arranged sequentially. The first end heat exchange part (21) is disposed on the first heat exchange part (11), and the second end heat exchange part (23) is disposed on the third heat exchange part (13). There is an installation gap between the first end heat exchange part (21) and the second end heat exchange part (23). The end face baffle (22) is disposed at the installation gap, and the end face baffle (22) is sealed to the first end heat exchange part (21), the second end heat exchange part (23), and the second heat exchange part (12).

3. The heat exchanger of claim 2, wherein: From the second heat exchange section (12) to the air outlet (101), the distance between the first heat exchange section (11) and the third heat exchange section (13) gradually increases.

4. The heat exchanger of claim 3, wherein: When the second heat exchange section (12) is parallel to the horizontal plane, the first heat exchange section (11) is inclined to the first side relative to the vertical plane; and / or, when the second heat exchange section (12) is parallel to the horizontal plane, the third heat exchange section (13) is inclined to the second side relative to the vertical plane.

5. The heat exchanger of claim 4, wherein: The first end heat exchange section (21) tilts with the tilt of the first heat exchange section (11), and the edge of the end face baffle (22) connected to the first end heat exchange section (21) tilts with the tilt of the first end heat exchange section (21); and / or, the second end heat exchange section (23) tilts with the tilt of the third heat exchange section (13), and the edge of the end face baffle (22) tilts with the tilt of the second end heat exchange section (23).

6. The heat exchanger of claim 5, wherein: The heat exchanger also includes an auxiliary baffle (3), which is disposed between the end face baffle (22) and the second heat exchange part (12). The auxiliary baffle (3), the first end heat exchange part (21), the second end heat exchange part (23), and the end face baffle (22) together constitute the end face of the groove space (100).

7. The heat exchanger of claim 2, wherein: A side heat exchange tube (14) is provided in the first heat exchange section (11), the side heat exchange tube (14) bends at the connection between the first heat exchange section (11) and the first end heat exchange section (21) and extends into the first end heat exchange section (21); and / or, a side heat exchange tube (14) is provided in the third heat exchange section (13), the side heat exchange tube (14) bends at the connection between the third heat exchange section (13) and the second end heat exchange section (23) and extends into the second end heat exchange section (23).

8. The heat exchanger of claim 7, wherein: The heat exchanger further includes a flow divider (4), which is disposed within the installation spacing and is connected to all the side heat exchange tubes (14); and / or, the heat exchanger further includes a manifold (5), which is disposed within the installation spacing and is connected to all the side heat exchange tubes (14).

9. The heat exchanger of claim 8, wherein: The second heat exchange section (12) is provided with a bottom heat exchange tube (15). The heat exchanger also includes a branch main pipe, which is connected to the branch pipe (4) and all the bottom heat exchange tubes (15); and / or, the heat exchanger also includes a collector main pipe, which is connected to the collector pipe (5) and all the bottom heat exchange tubes (15).

10. The heat exchanger according to claim 1, characterized in that: The heat exchanger also includes two end plates (6), which are respectively disposed at both ends of the first heat exchange structure (1), and the first heat exchange part (11), the second heat exchange part (12), the third heat exchange part (13) and the second heat exchange structure (2) are all fixedly connected to the corresponding end plates (6).

11. The heat exchanger of claim 10, wherein: The heat exchanger further includes a reinforcing structure (7), which is located between the first heat exchange section (11) and the second heat exchange section (12) and / or between the third heat exchange section (13) and the second heat exchange section (12), and the reinforcing structure (7) is connected to the two end plates (6).

12. The heat exchanger of claim 11, wherein: The reinforcing structure (7) includes a tie rod and a fastener, the tie rod being fixedly connected to the two end plates (6) by the fastener.

13. The heat exchanger of claim 11, wherein: The reinforcing structure (7) also includes a sealing plate, the end of which is sealed to the corresponding end plate (6), and the edge of which is sealed to the second heat exchange part (12), the first heat exchange part (11) and the third heat exchange part (13).

14. The heat exchanger of claim 10, wherein: The first heat exchange structure (1) includes a plurality of first fins (16), the shape of the first fins (16) is the same as the shape of the end plate (6), and all the first fins (16) are arranged side by side with the end plate (6).

15. The heat exchanger of claim 1, wherein: The heat exchanger also includes a top frame (17), which is located at the air outlet (101), and the top of the first heat exchange structure (1) and the top of the second heat exchange structure (2) are fixedly connected to the top frame (17).

16. An air conditioning system characterized by: The heat exchanger includes any one of claims 1 to 15.

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