Heat exchange device and condenser

Abstract

This utility model relates to the field of heat dissipation technology, and more specifically, to a heat exchange device and a condenser. The heat exchange device includes at least two sets of heat exchange plates arranged at an angle, each set including heat exchange tubes. The distribution density of the heat exchange tubes at the corners of each heat exchange plate set is less than the distribution density at the open ends of the heat exchange plate set. This heat exchange device has a compact layout and occupies a small area. Simultaneously, it reduces wind resistance in areas with lower wind speeds far from the fan, resulting in a more uniform airflow. This allows the refrigerant in the heat exchange tubes to achieve more complete heat exchange, improving heat exchange efficiency and thus enhancing the energy efficiency of air conditioners using this heat exchange device. Furthermore, it avoids the phenomenon of short-circuiting and mixing of hot and cold airflows caused by the low-temperature inlet and high-temperature outlet air being at the same horizontal level in existing planar heat exchange devices.

Description

Technical Field

[0001] This utility model relates to the field of heat dissipation technology, and more specifically, to a heat exchange device and a condenser. Background Technology

[0002] With the rapid development of information technology facilities such as data centers and communication base stations, the heat load generated by high-density network equipment in computer rooms has increased. In order to meet the heat dissipation needs, the requirements for air conditioning energy efficiency have increased, and the number of air conditioners needs to be increased, which in turn makes the requirements for the floor space of air conditioners more stringent.

[0003] Common air conditioner heat exchangers include a fan and a heat exchange plate assembly. The heat exchange plate assembly has heat exchange tubes and heat dissipation fins. When the refrigerant flows through the heat exchange tubes, heat is transferred to the heat dissipation fins. The fan drives the gas flow, so when the gas flows through the heat dissipation fins, it can carry away the heat from the heat dissipation fins, thereby achieving heat exchange with the refrigerant in the heat exchange tubes.

[0004] In the process of developing this application, the inventors discovered at least the following problems in the prior art:

[0005] To meet the aforementioned requirements for air conditioning floor space, the heat exchanger assemblies can be arranged in a V-shaped mirror distribution. However, while the V-shaped design can reduce the floor space, it will result in uneven airflow across the heat exchanger, which is not conducive to improving energy efficiency. Utility Model Content

[0006] In view of this, the purpose of this utility model is to provide a heat exchange device and a heat exchanger, the structural design of which can improve the problem of insufficient heat exchange in the heat exchanger leading to low air conditioning energy efficiency.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A heat exchange device includes at least two groups of heat exchange plates arranged at an angle to each other. Each heat exchange plate group includes heat exchange tubes, and the heat exchange tube distribution density at the corner of each heat exchange plate group is less than the heat exchange tube distribution density at the open end of the heat exchange plate group.

[0009] Optionally, in the above heat exchange device, each group of heat exchange plates is provided with multiple rows of heat exchange tubes, and the number of rows of heat exchange tubes at the corner is less than the number of rows of heat exchange tubes at the open end.

[0010] Optionally, in the above heat exchange device, a row of heat exchange tubes is provided on the inner side of the opening end, a row of heat exchange tubes is provided on the outer side of the opening end, and at least one row of heat exchange tubes is provided in the middle of the opening end.

[0011] A row of heat exchange tubes is provided on the inner side of the corner, and a row of heat exchange tubes is provided on the outer side of the open end, with the middle part of the open end left empty.

[0012] Wherein, the inner side faces the inside of the included angle, and the outer side faces the outside of the included angle.

[0013] Optionally, in the above heat exchange device, a row of heat exchange tubes is provided on the inner side of the opening end, a row of heat exchange tubes is provided on the outer side of the opening end, and at least one row of heat exchange tubes is provided in the middle of the opening end.

[0014] The inner side of the corner is empty, a row of heat exchange tubes is provided on the outer side of the corner, and at least one row of heat exchange tubes is provided in the middle of the corner;

[0015] Wherein, the inner side faces the inside of the included angle, and the outer side faces the outside of the included angle.

[0016] Optionally, in the above heat exchange device, each heat exchange plate group includes heat dissipation fins, and the heat exchange tube is disposed on the heat dissipation fins.

[0017] Optionally, in the above heat exchange device, the heat dissipation fins of at least two sets of heat exchange plate groups are symmetrically arranged, and the heat exchange tubes of at least two sets of heat exchange plate groups are symmetrical about the symmetrical surfaces of the heat dissipation fins.

[0018] Optionally, in the above heat exchange device, the width of the heat dissipation fins at the opening end is equal to the width of the heat dissipation fins at the corner.

[0019] Optionally, in the above-mentioned heat exchange device, each of the heat exchange plate groups is provided with a first fixing part and a second fixing part for installing the heat exchange device at both ends.

[0020] Optionally, in the above-mentioned heat exchange device, a mounting plate is connected between the two sets of heat exchange plates that are at an angle to each other.

[0021] The heat exchange device provided by this utility model includes at least two sets of heat exchange plate groups arranged at an angle. Each heat exchange plate group includes heat exchange tubes, and the heat exchange tube distribution density at the corner of each heat exchange plate group is less than the heat exchange tube distribution density at the open end of the heat exchange plate group.

[0022] The heat exchange device provided by this invention features at least two heat exchange plate assemblies arranged at an angle, resulting in a more compact layout and reduced floor space. Furthermore, during installation, the open ends of the heat exchange plate assemblies can be positioned close to the fan. Since the distribution density of heat exchange tubes at the corners of the heat exchange plate assemblies is lower than at the open ends, wind resistance in areas with lower wind speeds away from the fan is reduced, leading to a more uniform airflow. This allows for more efficient heat exchange of the refrigerant within the heat exchange tubes, improving heat exchange efficiency and consequently enhancing the energy efficiency of air conditioners using this device. It also avoids the problem of short-circuiting and mixing of hot and cold airflows caused by the planar heat exchange devices in existing technologies where low-temperature inlet and high-temperature outlet air are at the same horizontal level.

[0023] To achieve the above objectives, this utility model also provides a condenser that includes any of the aforementioned heat exchange devices. Since the aforementioned heat exchange devices have the above-mentioned technical effects, the condenser having the aforementioned heat exchange device should also have the corresponding technical effects. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of a heat exchange device according to a specific embodiment of the present invention;

[0026] Figure 2 A cross-sectional schematic diagram of a heat exchange device according to a specific embodiment;

[0027] Figure 3 This is a front view schematic diagram of a condenser according to a specific embodiment of the present invention;

[0028] Figure 4 This is an axial view of a condenser according to a specific embodiment (fan not shown).

[0029] Figure 5 This is a side view of a condenser (fan not shown) according to a specific embodiment.

[0030] Figure label:

[0031] 10-Heat exchange device; 1-Heat exchange plate assembly; 11-Heat dissipation fins; 12-Heat exchange tube; 111-Bottom end; 112-Top end; 113-Corner; 114-Open end; 2-Mounting plate; 3-First fixing part; 4-Second fixing part;

[0032] 20 - Fan; 30 - Manifold; 40 - Main pipe. Detailed Implementation

[0033] This utility model discloses a heat exchange device and a condenser to improve the heat exchange efficiency of the heat exchange device, thereby improving the energy efficiency of the air conditioner.

[0034] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] To reduce the footprint of the heat exchanger, the heat exchange plate assembly can be arranged in a V-shape. The V-shape design can reduce the footprint to a certain extent, but due to the static pressure of the fan, the air velocity is lower or even zero closer to the corner of the V-shape and further away from the fan. This results in uneven air velocity, poor airflow organization, and low heat exchange efficiency, which is not conducive to improving energy efficiency.

[0036] Based on this, this application provides a heat exchange device and heat exchanger. By adjusting the distribution of the heat exchange tubes, the problem of uneven airflow can be improved, thereby increasing the heat exchange efficiency. The following embodiments mainly describe the above structure.

[0037] In some embodiments, please refer to Figures 1-2 The heat exchange device provided by this utility model includes two sets of heat exchange plate groups 1 arranged at an included angle. Each heat exchange plate group 1 includes heat exchange tubes 12. The distribution density of heat exchange tubes 12 at the corners 113 of each heat exchange plate group 1 is less than the distribution density of heat exchange tubes at the open ends 114 of the heat exchange plate group 1. It should be noted that the included angle is greater than 0 degrees and less than 180 degrees. For example, the two heat exchange plate groups 1 form an acute angle.

[0038] When the heat exchange device is in use, with the fan 20 on, gas, such as outdoor air, passes through the heat exchange plate assembly 1 for heat exchange. Since the two heat exchange plate assemblies 1 are arranged at a preset angle, and the fan 20 is located at the open end of the angle, the air velocity is lower near the corner. Therefore, the distribution density of heat exchange tubes 12 at the corner 113 of the heat exchange plate assembly 1 is lower than the distribution density of heat exchange tubes 12 at the open end 114 of the heat exchange plate assembly 1. It can be understood that the distribution density of heat exchange tubes 12 in the heat exchange plate assembly 1 refers to the number of heat exchange tubes 12 per unit area of ​​the heat exchange plate assembly 1. With a fixed area of ​​the heat exchange plate assembly 1, a lower distribution density of heat exchange tubes 12 indicates fewer heat exchange tubes 12. With the above arrangement, the bottom 113 of the heat exchange plate assembly 1, which is the area farthest from the fan 20, has reduced air resistance, thus improving the airflow.

[0039] It is understood that the heat exchange device may also include three or more heat exchange plate groups 1. If at least two of the three or more heat exchange plate groups 1 and the corresponding heat exchange tubes 12 satisfy the above structure, they are also within the protection scope of this application.

[0040] The heat exchange device provided by this invention features at least two heat exchange plate assemblies 1 arranged at a preset angle, resulting in a more compact layout and reduced floor space. Furthermore, by installing the heat exchange device with its open end close to the fan 20, the distribution density of the heat exchange tubes 12 at the corners 113 of the heat exchange plate assembly 1 is lower than that at the open ends 114, thus reducing wind resistance in areas with lower wind speeds far from the fan 20. This leads to a more uniform airflow, allowing the refrigerant within the heat exchange tubes 12 to achieve more complete heat exchange, improving heat exchange efficiency and consequently enhancing the energy efficiency of air conditioners using this heat exchange device. It also avoids the problem of short-circuiting and mixing of hot and cold airflows caused by the planar heat exchange device in existing technologies where low-temperature inlet and high-temperature outlet air are at the same horizontal level.

[0041] In some embodiments, the two sets of heat exchange plate assemblies 1 are at a predetermined angle. The distribution density of heat exchange tubes 12 at the bottom 113 of the heat exchange plate assembly 1 is less than the distribution density at the top 114 of the heat exchange plate assembly 1. The bottom 113 is close to the end of the two heat exchange plate assemblies 1 that is close to each other, and the top 114 is opposite to the bottom 113. That is, the bottom ends 111 of the two heat exchange plate assemblies 1 are close to each other, and the top ends 112 are opposite to the bottom ends 111 and are used to approach the fan 20 that cooperates with the heat exchange device. It can be understood that the bottom 113 of the heat exchange plate assembly 1 refers to a range of a certain length from the bottom end 111 of the heat exchange plate assembly 1; the top 114 of the heat exchange plate assembly 1 refers to a range of a certain length from the top end 112 of the heat exchange plate assembly 1. The bottom end 111 and the top end 112 refer to the opposite ends of the heat exchange plate assembly 1 and are not limited to their absolute orientation in the use state.

[0042] In some embodiments, the heat exchange plate assembly 1 is provided with multiple rows of heat exchange tubes 12, and the number of rows of heat exchange tubes 12 at the corner 113 is less than the number of rows of heat exchange tubes 12 at the open end 114. It can be understood that multiple heat exchange tubes 12 distributed sequentially along the direction from the corner 113 to the open end 114 of the heat exchange plate assembly 1 constitute one row. Figure 1 In this embodiment, each heat exchange plate group 1 is provided with four rows of heat exchange tubes 12. By reducing the number of rows of heat exchange tubes 12, the distribution density of the heat exchange tubes 12 is reduced, which facilitates processing and manufacturing or structural modification of existing heat exchange devices. For example, the number of heat exchange tubes 12 can be reduced by tube removal. That is, compared with the uniform distribution of conventional heat exchange tubes 12 on the heat exchange plate group 1, in this embodiment, tubes are removed from the corner 113 of the heat exchange plate group 1, thereby reducing the distribution density of heat exchange tubes 12 and thus reducing wind resistance.

[0043] In some embodiments, a row of heat exchange tubes 12 is provided on the inner side of the opening end 114, a row of heat exchange tubes 12 is provided on the outer side of the opening end 114, and at least one row of heat exchange tubes 12 is provided in the middle of the opening end 114, wherein the inner side faces the inside of the included angle, and the outer side faces the outside of the included angle. That is, the inner side refers to the side of one of the two heat exchange plate groups 1 that is at an angle that faces the other heat exchange plate group 1, and the outer side refers to the side that is away from the other heat exchange plate group 1. The middle part is referred to as the part located between the inner side and the outer side. The wind speed corresponding to the opening end 114 region of the heat exchange plate group 1 is relatively large, and the distribution density of the heat exchange tubes 12 is correspondingly set to be relatively large.

[0044] In some embodiments, a row of heat exchange tubes 12 is provided on the inner side of the corner 113, and a row of heat exchange tubes 12 is provided on the outer side of the open end 114, with the middle of the open end 114 left empty. That is, heat exchange tubes 12 are only provided on the inner and outer sides of the corner 113 of the heat exchange plate assembly 1, and no heat exchange tubes 12 are provided in the middle, so as to reduce the distribution density of the heat exchange tubes 12. With this configuration, the empty tubes are located in the middle of the heat exchange plate assembly 1, which facilitates the connection of the heat exchange flow path formed by the heat exchange tubes 12 on both sides to the manifold 30. For example, a manifold 30 is provided on the inner or outer side of the heat exchange plate assembly 1, and each flow path is connected to the manifold 30 to flow into the main pipe 40 through the manifold 30.

[0045] In some embodiments, a row of heat exchange tubes 12 is provided on the inner side of the open end 114, a row of heat exchange tubes 12 is provided on the outer side of the open end 114, and at least one row of heat exchange tubes 12 is provided in the middle of the open end 114; the inner side of the corner 113 is empty, a row of heat exchange tubes 12 is provided on the outer side of the corner 113, and at least one row of heat exchange tubes 12 is provided in the middle of the corner 113. Unlike the embodiment described above where the middle of the corner 113 is empty and no heat exchange tubes 12 are provided, in this embodiment, the inner side of the corner 113 is empty, which can also reduce the distribution density of the heat exchange tubes 12. In addition, when multiple rows of heat exchange tubes 12 are provided in the middle of the corner 113, the number of heat exchange tubes 12 in each row can be the same or different. That is, the position and number of empty tubes can be adjusted accordingly as needed, making the form of the heat exchange device more diverse to meet personalized needs.

[0046] In some embodiments, multiple heat exchange tubes 12 are connected in series to form a heat exchange flow path. The heat exchange plate assembly 1 contains multiple heat exchange flow paths, with the number of heat exchange tubes 12 gradually increasing from the open end to the corner end. The heat exchange plate assembly 1 typically contains multiple heat exchange tubes 12, such as multiple rows of heat exchange tubes 12, with each row containing multiple heat exchange tubes 12. The multiple heat exchange tubes 12 are divided into multiple groups, with each group's heat exchange tubes 12 connected in series to form a heat exchange flow path. Multiple groups of heat exchange flow paths are connected in parallel, such as all converging into a manifold 30 and then into a main pipe 40. Since the wind speed at the corner 113 is less than that at the opening end 114, the number of heat exchange tubes 12 included in the heat exchange flow path at the corner 113 is greater than the number of heat exchange tubes 12 included in the heat exchange flow path at the opening end 114. As a result, the length of the heat exchange flow path at the corner 113 is greater than the length of the heat exchange flow path at the opening end 114, allowing the refrigerant in the heat exchange flow path at the corner 113 to exchange heat more fully, thereby further improving the overall heat exchange efficiency.

[0047] In some embodiments, the number of heat exchange tubes 12 included in each heat exchange flow path gradually increases from the top 112 to the bottom 111. The number of heat exchange tubes in the flow path closer to the fan 20, where the airflow velocity is higher, is relatively small, and the number of tubes in each heat exchange flow path gradually increases with the distance from the fan 20. This arrangement allows the heat exchange flow paths to be more precisely matched with the airflow velocity, further improving heat exchange efficiency.

[0048] For example, depending on the magnitude of the wind speed difference, a uniform flow path is used in areas with small wind speed differences, meaning that the number of heat exchange tubes 12 in each heat exchange flow path is the same. For instance, when the upper part includes multiple heat exchange flow paths, the number of heat exchange tubes 12 in each heat exchange flow path is the same. When the wind speed difference is large, a non-uniform flow path is used, meaning that the number of heat exchange tubes in the heat exchange flow path is relatively small near the fan 20 where the wind speed is high. As the distance from the fan 20 increases, the number of tubes in each heat exchange flow path gradually increases. For instance, when the corner 113 includes multiple heat exchange flow paths, the number of heat exchange tubes 12 in each heat exchange flow path gradually increases.

[0049] In some embodiments, the distribution density of the heat exchange tubes 12 gradually decreases from the open end 114 to the corner 113 of the heat exchange plate assembly 1. For example, the distribution density of the heat exchange tubes 12 can have two, three, or more levels. This gradual change in the distribution density of the heat exchange tubes 12 allows for more precise matching with the airflow velocity, further improving heat exchange efficiency.

[0050] In some embodiments, each heat exchange plate group 1 includes heat dissipation fins 11, and the heat exchange tubes 12 are provided with heat dissipation fins 11. The distribution density of the heat exchange tubes 12 at the corners of the heat dissipation fins 11 is less than the distribution density of the heat exchange tubes 12 at the open ends of the heat dissipation fins 11.

[0051] In some embodiments, the heat dissipation fins 11 of the two sets of heat exchange plate groups 1 arranged at an angle are symmetrically arranged, and the heat exchange tubes 12 of the two sets of heat exchange plate groups 1 arranged at an angle are symmetrical about the symmetrical plane of the heat dissipation fins 11. The heat dissipation fins 11 and the heat exchange tubes 12 are both symmetrically arranged, so that the heat exchange on both sides of the symmetrical plane is approximately the same, which improves the heat exchange uniformity and facilitates the processing and manufacturing of the heat exchange device, thereby reducing costs.

[0052] In some embodiments, the width d1 of the heat dissipation fins 11 at the open end 114 is equal to the width d2 of the heat dissipation fins 11 at the corner 113. It is understood that, when multiple rows of heat exchange tubes 12 are provided, the width direction here represents the distribution direction of the multiple rows of heat exchange tubes 12. That is, for the corner 113, the number of heat exchange tubes 12 is reduced while maintaining the width of the heat dissipation fins 11, thereby reducing the distribution density of the heat exchange tubes 12. This reduces wind resistance while ensuring a larger heat exchange area for the heat dissipation fins 11, thus improving heat exchange efficiency. Specifically, the width of the heat dissipation fins 11 corresponding to the portion with heat exchange tubes 12 remains consistent. For example, the number of heat exchange tubes 12 can be reduced by tube removal, while the size of the heat dissipation fins 11 remains unchanged.

[0053] In some embodiments, the distance between the bottommost heat exchange tube 12 (111) and the bottom end (111) of the heat dissipation fins 11 is greater than a preset distance. That is, the distance between the furthest section of the heat exchange tube 12 and the fan 20 is shortened, increasing the airflow velocity at the furthest end of the heat exchange tube 12 and thus improving heat exchange efficiency. For example, the number of heat exchange tubes 12 is reduced by tube reduction, and the heat exchange flow path is adjusted to shorten the overall height of the heat exchange coil, thereby shortening the furthest distance from the fan 20.

[0054] In some embodiments, the heat exchange plate assembly 1 has a first fixing part 3 and a second fixing part 4 at both ends for mounting the heat exchange device. By providing the first fixing part 3 and the second fixing part 4, the heat exchange device can be reliably mounted on components such as the frame. Specifically, the first fixing part 3 and the second fixing part 4 can be fixed brackets, each with bolt holes for bolt connection to the frame or similar components.

[0055] In some embodiments, a mounting plate 2 connects the two sets of heat exchange plate assemblies 1 that are at an angle. The mounting plate 2 can reliably fix the two sets of heat exchange plate assemblies 1, thereby facilitating the overall installation of the heat exchange device and making the structure of the heat exchange device more stable and reliable.

[0056] Based on the heat exchange device provided in the above embodiments, this utility model also provides a condenser, which includes a fan and any one of the heat exchange devices in the above embodiments, with the fan positioned near the open end of the heat exchange plate assembly 1. For example, the fan is positioned near the V-shaped opening of the heat exchange plate assembly 1. Since this condenser uses the heat exchange device in the above embodiments, the beneficial effects of this condenser are explained in the above embodiments.

[0057] In some embodiments, please refer to Figures 3-5 The heat exchange device 10 is placed below the fan 20. When the fan 20 is turned on, outdoor air enters from both sides of the heat exchange plate group 1 and flows into the area inside the angle formed by the heat exchange plate group 1, and then is discharged by the fan. Heat exchange is carried out through the heat exchange device 10. The heat exchange device 10 solves the problem of insufficient heat exchange caused by uneven airflow organization in traditional V-type heat exchangers. On the other hand, the design is relatively compact and the overall footprint is small.

[0058] In some embodiments, the condenser is a centralized condenser with an integrated refrigerant pump. The condenser includes a fan 20 located at the top 112 and blowing air upwards, a refrigerant pump located at the corner 113, and a heat exchange device 10 located above the refrigerant pump. The heat exchange device 10 adopts any of the structures described in the above embodiments. A manifold 30 is provided on one side of each heat dissipation fin 11 to connect the heat exchange flow path. A main pipe 40 is provided between the corner 113 of the heat exchange device 10 and the refrigerant pump to collect the refrigerant in each manifold 30. This centralized condenser adopts a two-in-one design concept, integrating an outdoor condenser and a pump energy-saving module, which has the effects of reducing the footprint, optimizing the structural design, and simplifying system organization.

[0059] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0060] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A heat exchange device, characterized in that, It includes at least two sets of heat exchange plate groups (1) arranged at an angle, each heat exchange plate group (1) including heat exchange tubes (12), the distribution density of the heat exchange tubes (12) at the corner (113) of each heat exchange plate group (1) is less than the distribution density of the heat exchange tubes (12) at the open end (114) of the heat exchange plate group (1).

2. The heat exchange device according to claim 1, characterized in that, Each heat exchange plate group (1) is provided with multiple rows of heat exchange tubes (12), and the number of rows of heat exchange tubes (12) at the corner (113) is less than the number of rows of heat exchange tubes (12) at the open end (114).

3. The heat exchange device according to claim 2, characterized in that, A row of heat exchange tubes (12) is provided on the inner side of the opening end (114), a row of heat exchange tubes (12) is provided on the outer side of the opening end (114), and at least one row of heat exchange tubes (12) is provided in the middle of the opening end (114). A row of heat exchange tubes (12) is provided on the inner side of the corner (113), and a row of heat exchange tubes (12) is provided on the outer side of the open end (114). The middle part of the open end (114) is empty. Wherein, the inner side faces the inside of the included angle, and the outer side faces the outside of the included angle.

4. The heat exchange device according to claim 2, characterized in that, A row of heat exchange tubes (12) is provided on the inner side of the opening end (114), a row of heat exchange tubes (12) is provided on the outer side of the opening end (114), and at least one row of heat exchange tubes (12) is provided in the middle of the opening end (114). The inner side of the corner (113) is empty, a row of heat exchange tubes (12) is provided on the outer side of the corner (113), and at least one row of heat exchange tubes (12) is provided in the middle of the corner (113). Wherein, the inner side faces the inside of the included angle, and the outer side faces the outside of the included angle.

5. The heat exchange device according to any one of claims 1-4, characterized in that, Each heat exchange plate group (1) includes heat dissipation fins (11), and the heat exchange tube (12) is disposed on the heat dissipation fins (11).

6. The heat exchange device according to claim 5, characterized in that, The heat exchange fins (11) of the two sets of heat exchange plate groups (1) at an angle are symmetrically arranged, and the heat exchange tubes (12) of the two sets of heat exchange plate groups (1) at an angle are symmetrical about the symmetrical surfaces of the heat exchange fins (11).

7. The heat exchange device according to claim 5, characterized in that, The width of the heat dissipation fins (11) at the opening end (114) is equal to the width of the heat dissipation fins (11) at the corner (113).

8. The heat exchange device according to any one of claims 1-4, characterized in that, Each heat exchange plate assembly (1) has a first fixing part (3) and a second fixing part (4) at both ends for installing the heat exchange device.

9. The heat exchange device according to any one of claims 1-4, characterized in that, An mounting plate (2) is connected between the two sets of heat exchange plates (1) that are at an angle to each other.

10. A condenser, characterized in that, Includes a fan (20) and a heat exchange device (10) as described in any one of claims 1-9, wherein the fan (20) is disposed near the open end of the heat exchange plate assembly (1).

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