Radiator and air conditioning system

Abstract

A radiator and air conditioning system, wherein the radiator comprises a radiator body, a plurality of heat exchange pipes and a plurality of connecting pipes, a part of the heat exchange pipes are arranged through the radiator body, and the other part of the heat exchange pipes are arranged outside the radiator body, the heat exchange pipes are communicated through the connecting pipes, the radiator can be applied to the air conditioning system and connected between the condenser and the expansion element, by arranging the part of the heat exchange pipes outside the radiator body, the part of the heat exchange pipes can exchange heat with the ambient air, so as to improve the heat dissipation effect of the radiator.

Description

Technical Field

[0001] This application relates to a radiator and an air conditioning system including the radiator. Background Technology

[0002] In air conditioning systems, to ensure the operating temperature of electronic devices (heating elements), the inventors know of methods to dissipate heat from electronic devices through heat sinks, such as through refrigerant in the heat exchange tubes of the heat sink. However, during the heat dissipation process, as the refrigerant in the heat exchange tubes continuously exchanges heat with the electronic devices, its temperature continuously rises, resulting in the heat dissipation effect of the upstream heat exchange tubes being significantly better than that of the downstream heat exchange tubes. In other words, the heat dissipation uniformity of the heat sink is poor, which will lead to uneven heat dissipation of electronic devices, poor heat dissipation effect, and increased risk of overheating of electronic devices. Summary of the Invention

[0003] The purpose of this application is to provide a radiator and air conditioning system that improves the heat dissipation effect of the radiator.

[0004] To achieve the above objectives, this application adopts the following technical solution:

[0005] A radiator includes heat exchange tubes, a heat dissipation body, and connecting pipes. The number of heat exchange tubes is N, where N ≥ 3 and N is an integer. The number of connecting pipes is N-1. The heat exchange tubes are arranged along the width direction of the heat dissipation body. A portion of the heat exchange tubes pass through the heat dissipation body, while another portion is located outside the heat dissipation body. Each pair of heat exchange tubes is connected to the other through the connecting pipes.

[0006] An air conditioning system includes a condenser and an expansion element, and further includes a radiator, which is the aforementioned radiator, and the radiator is connected between the condenser and the expansion element.

[0007] The outlet of the condenser is connected to the inlet of the radiator, and the outlet of the radiator is connected to the inlet of the expansion element.

[0008] This application provides a radiator and an air conditioning system, wherein the radiator includes a heat dissipation body, a plurality of heat exchange tubes and a plurality of connecting pipes. A portion of the heat exchange tubes are disposed through the heat dissipation body, and another portion of the heat exchange tubes are disposed outside the heat dissipation body. The heat exchange tubes are connected to each other through the connecting pipes. The radiator can be used in an air conditioning system and connected between a condenser and an expansion element. By disposing of a portion of the heat exchange tubes outside the heat dissipation body, it is beneficial for these heat exchange tubes to exchange heat with the ambient air, thereby improving the heat dissipation effect of the radiator. Attached Figure Description

[0009] Figure 1A three-dimensional structural schematic diagram of one embodiment of the first implementation of the radiator;

[0010] Figure 2 for Figure 1 A three-dimensional structural diagram of the heat dissipation body;

[0011] Figure 3 for Figure 1 A three-dimensional structural diagram of the heat dissipation body and fins;

[0012] Figure 4 for Figure 1 A projection diagram on the first plane;

[0013] Figure 5 A three-dimensional structural schematic diagram of one embodiment of a second implementation of the radiator;

[0014] Figure 6 This is a schematic diagram of an air conditioning system. Detailed Implementation

[0015] The present application will be further described below with reference to the accompanying drawings and specific embodiments:

[0016] Radiators are used in air conditioning systems, primarily to dissipate heat from electronic components such as frequency converters. See also... Figure 1 and Figure 2This is one embodiment of the first implementation of the radiator. The radiator 100 includes a heat dissipation body 1, heat exchange tubes, and connecting pipes for connecting the heat exchange tubes. The number of heat exchange tubes and connecting pipes can be multiple. In this embodiment, the heat exchange tubes include a first heat exchange tube 21, a second heat exchange tube 22, a third heat exchange tube 23, and a fourth heat exchange tube 24, and the connecting pipes include a first connecting pipe 31, a second connecting pipe 32, and a third connecting pipe 33. The heat dissipation body 1 includes connecting holes that penetrate the heat dissipation body 1. The number of connecting holes is multiple (defined as ≥2, the same below), which can be selected according to actual needs. In this embodiment, the connecting holes include a first connecting hole 11 and a second connecting hole 12. The first heat exchange tube 21 passes through the first connecting hole 11 and is connected to the second heat exchange tube 22 through the first connecting tube 31. That is, part of the first connecting tube 31 is located in the first connecting hole 11. The first connecting tube 31 is connected and fixed to the first connecting hole 11. The connection and fixation can be achieved by means of threaded connection (i.e., the outer peripheral wall of the first connecting tube 31 is provided with an external thread section, and the inner peripheral wall of the first connecting hole 11 is provided with an internal thread section, and the two are threaded together to achieve threaded connection) or welding. The second heat exchange tube 22 is located outside the heat dissipation body 1, specifically on one side of the heat dissipation body 1. The second heat exchange tube 22 is connected to the third heat exchange tube 23 through the second connecting tube 32. The third heat exchange tube 23 passes through the second connecting hole 12 and is then connected to the fourth heat exchange tube 24 through the third connecting tube 33. A portion of the third heat exchange tube 23 is located in the second connecting hole 12, and the third heat exchange tube 23 is also connected and fixed to the second connecting hole 12. The fourth heat exchange tube 24 is located outside the heat dissipation body 1, specifically on the same side of the heat dissipation body 1 as the second heat exchange tube 22. Of course, in other embodiments, the fourth heat exchange tube 24 and the second heat exchange tube 22 can also be located on different sides of the heat dissipation body 1. In this embodiment, the connecting tube is specifically a U-shaped tube, which allows the fluid inside the heat exchange tube to undergo multiple baffles, which is beneficial for improving the uniformity of fluid mixing and for making the structure compact. Of course, in other embodiments, the connecting tube can also be other shapes, which are not limited here.

[0017] In the above embodiments, as an extension, the first heat exchange tube 21, the first connecting tube 31, and the second heat exchange tube 22 can be integrally formed. For ease of understanding and description, even if there is an integrally formed part, it can be defined to divide the whole into different parts. For example, the integrally formed part can still be divided into the first heat exchange tube 21, the first connecting tube 31, and the second heat exchange tube 22 according to each part. That is, the heat exchange tubes and connecting tubes can be formed separately, or some of them can be integrally formed. In addition, the third heat exchange tube 23, the third connecting tube 33, and the fourth heat exchange tube 24 can be integrally formed. Or, as other implementations, the second heat exchange tube 22, the second connecting tube 32, and the third heat exchange tube 23 can be integrally formed.

[0018] In the above embodiments, as an extension, the first connecting hole 11 and the second connecting hole 12 can also be used as heat exchangers instead of the first heat exchange tube 21 and the third heat exchange tube 23, respectively. That is, the first connecting hole 11 is connected to the second heat exchange tube 22 through the first connecting pipe 31, the second heat exchange tube 22 is connected to the second connecting hole 12 through the second connecting pipe 32, and the second connecting hole 12 is connected to the fourth heat exchange tube 24 through the third connecting pipe 33.

[0019] See Figure 1 The radiator 100 includes an inlet 51 and an outlet 52. In this embodiment, the inlet 51 can be the port of the first heat exchange tube 21 that is not connected to the second heat exchange tube 22, and the outlet 52 can be the port of the fourth heat exchange tube 24 that is not connected to the third heat exchange tube 23. The inlet 51 and the outlet 52 are located on the same side of the heat dissipation body 1, and are different from the side of the second heat exchange tube 22 and the fourth heat exchange tube 24 relative to the heat dissipation body 1. Of course, in other embodiments, the inlet and the outlet can also be located on different sides of the heat dissipation body 1, and the inlet 51 can be set separately, such as the inlet 51 being connected to the first heat exchange tube 21. Similarly, the outlet 52 can also be set separately, such as the outlet 52 being connected to the fourth heat exchange tube 24. When the radiator 100 is applied to an air conditioning system, the radiator 100 is mainly connected between the condenser and the expansion element. The refrigerant, after being condensed and cooled by the condenser, flows into the first heat exchange tube 21 from the inlet 51. The relatively low-temperature refrigerant exchanges heat with the electronic devices through the heat conduction between the first heat exchange tube 21 and the heat dissipation body 1, thereby dissipating heat from the electronic devices. Specifically, see Figure 2 In this embodiment, the heat dissipation body 1 includes a heat dissipation plane 13 for contacting electronic devices. The heat dissipation plane 13 is provided to increase the contact area between the electronic devices and the heat dissipation body, thereby improving the heat dissipation effect.

[0020] After absorbing heat, the refrigerant in the first heat exchange tube 21 gradually increases in temperature and flows to the second heat exchange tube 22 under the action of the first connecting pipe 31. Since the second heat exchange tube 22 is located outside the heat dissipation body 1, the refrigerant in the second heat exchange tube 22 can exchange heat with the ambient air, which helps to reduce the temperature of the refrigerant. After being cooled down by exchanging heat with the ambient air, the refrigerant flows to the third heat exchange tube 23 under the action of the second connecting pipe 32, and then exchanges heat with the electronic device again through the heat conduction of the heat dissipation body 1, thus dissipating heat from the electronic device. Compared with the prior art, this is beneficial to improving the heat dissipation effect of the heat sink 100. After absorbing heat, the refrigerant in the third heat exchange tube 23 rises in temperature again and flows to the fourth heat exchange tube 24 through the third connecting pipe 33. The fourth heat exchange tube 24 is also located outside the heat dissipation body 1. The refrigerant in the fourth heat exchange tube 24 can also exchange heat with the ambient air again, and after the refrigerant temperature is reduced, it flows out from the outlet to the subsequent expansion element. The fourth heat exchange tube 24 is set to cool down the refrigerant, which is beneficial to reduce the refrigerant temperature at the outlet of the radiator. Compared with the prior art, it is beneficial for the refrigerant to have better subcooling before entering the expansion element for throttling expansion, which is beneficial to ensuring the cooling capacity of the air conditioning system.

[0021] It should be noted that, based on the above embodiments, it is easy to conceive of setting multiple heat exchange tubes and multiple connecting tubes. The heat exchange tubes and connecting tubes can be set separately or a portion of the heat exchange tubes and connecting tubes can be integrally formed. The heat exchange tubes are arranged and distributed along the width direction of the heat dissipation body 1. To improve the heat dissipation effect, according to the actual application needs, a portion of the heat exchange tubes can be set to pass through the heat dissipation body 1, and another portion of the heat exchange tubes can be set to be located outside the heat dissipation body 1. Alternatively, at least a portion of the connecting holes can be set to replace the heat exchange tubes. That is, at this time, at least a portion of the heat exchange tubes are located outside the heat dissipation body 1, and the heat exchange tubes are connected to the connecting holes and / or to each other through connecting tubes.

[0022] See Figures 1 to 3To improve the heat exchange effect between the heat exchange tubes (such as the second heat exchange tube 22 and the fourth heat exchange tube 24 in this embodiment) located outside the heat dissipation body 1 and the ambient air, the heat sink 100 may further include fins 6. There are multiple fins 6, which are arranged at intervals along the length of the heat dissipation body 1, specifically at equal intervals. The fins 6 are connected and fixed to the heat dissipation body 1, specifically by welding, adhesive, or clips, etc., and heat conduction can occur between the fins 6 and the heat dissipation body 1. Each fin is provided with a through hole 61 for the heat exchange tubes (such as the second heat exchange tube 22 and the fourth heat exchange tube 24 in this embodiment) to pass through. Each fin may have one or more through holes 61. In this embodiment, each fin has two through holes 61, which are aligned along the length of the heat dissipation body 1 for the heat exchange tubes to pass through. In this embodiment, specifically, the second heat exchange tube 22 and the fourth heat exchange tube 24 are arranged through the through hole 61 and pass through the fin 6. By setting the fin 6, on the one hand, the convective heat exchange effect between the second heat exchange tube 22 and the fourth heat exchange tube 24 and the external ambient air is improved, which is conducive to better cooling of the refrigerant; on the other hand, since the fin 6 is connected to the heat dissipation body 1, it is also conducive to improving the heat dissipation effect of the heat dissipation body 1 through heat conduction, that is, part of the heat generated by the electronic device can be dissipated through heat exchange between the fin 6 and the external ambient air. In this embodiment, the fin 6 is a straight fin. Of course, in other embodiments, the fin 6 can also be other shapes, such as corrugated fins, louvered fins, serrated fins, porous fins, etc.

[0023] See Figure 1 and Figure 4 To improve the overall heat dissipation effect of the radiator and reduce heat exchange interference between the heat exchange tubes, the positional relationship between the heat exchange tubes can be further adjusted:

[0024] Along the width of the heat sink 1, the first heat exchange tube 21 and the third heat exchange tube 23 are positioned near the center of the heat sink 1, while the second heat exchange tube 22 and the fourth heat exchange tube 24 are positioned near the sides of the heat sink 1. When the heat sink 100 includes fins 6, the second heat exchange tube 22 and the fourth heat exchange tube 24 can also be positioned near the sides of the fins 6. The second heat exchange tube 22 is positioned closer to the right side of the heat sink 1 than the first heat exchange tube 21, the first heat exchange tube 21 is positioned closer to the second heat exchange tube 22 than the third heat exchange tube 23, and the fourth heat exchange tube 24 is positioned closer to the left side of the heat sink 1 than the third heat exchange tube 23, or opposite to the other side. Alternatively, the central axis of the first heat exchange tube 21 and the central axis of the third heat exchange tube 23 can be positioned on the same horizontal plane and parallel to each other. Similarly, the central axis of the second heat exchange tube 22 and the central axis of the fourth heat exchange tube 24 can be positioned on the same horizontal plane and parallel to each other. This arrangement of the heat exchange tubes helps to improve the heat dissipation uniformity of the heat sink.

[0025] Specifically, a first plane can be defined as a plane perpendicular to the length direction of the heat sink 1. The projection of the heat sink 100 onto the first plane is shown in [reference needed]. Figure 4 Define the outer diameter of the first heat exchange tube 21 as D1, the outer diameter of the second heat exchange tube 22 as D2, the outer diameter of the third heat exchange tube 23 as D3, and the outer diameter of the fourth heat exchange tube 24 as D4. The outer diameters of the heat exchange tubes can be equal, i.e., D1 = D2 = D3 = D4. Of course, the outer diameters of the heat exchange tubes can also be unequal or only some of the heat exchange tubes can have the same outer diameter.

[0026] Along the width direction of the heat dissipation body 1, the vertical distance from the center of the projection of the first heat exchange tube 21 on the first plane to the right edge or one side edge of the projection of the heat dissipation body 1 on the first plane is defined as S1, and the vertical distance from the center of the projection of the second heat exchange tube 22 on the first plane to the right edge or one side edge of the projection of the heat dissipation body 1 on the first plane is defined as S2, where S1>S2, S1≥D1 / 2+D2, and S1-S2≥D1 / 2+D2 / 2.

[0027] Similarly, the vertical distance from the center of the projection of the third heat exchange tube 23 on the first plane to the left edge of the projection of the heat dissipation body 1 on the first plane, or in other words, relative to the other side edge, is defined as S3, and the vertical distance from the center of the projection of the fourth heat exchange tube 24 on the first plane to the left edge of the projection of the heat dissipation body 1 on the first plane, or in other words, relative to the other side edge, is defined as S4, where S3>S4, S3≥D3 / 2+D4, and S3-S4≥D3 / 2+D4 / 2.

[0028] Define the vertical distance between the center of the projection of the first heat exchange tube 21 onto the first plane and the center of the projection of the third heat exchange tube 23 onto the first plane as S5, where 0.5(S1+S3)≤S5≤1.5(S1+S3).

[0029] See Figure 5 This is an embodiment of a second implementation of the radiator. Compared to the first implementation, in this embodiment, the radiator 100 further includes a cooling fan 7. Along the width direction of the heat exchanger body 1, the cooling fan 7 is disposed on the side of the heat exchanger body 1 near the outlet 52, and is fixedly connected to the heat exchanger body 1. The cooling fan 7 increases airflow, thereby enhancing the heat dissipation effect between the refrigerant and the fins 6 within the heat exchange tubes (such as the second heat exchange tube 22 and the fourth heat exchange tube 24 in this embodiment), further facilitating refrigerant cooling. Simultaneously, since the fins 6 and the heat exchanger body 1 can be thermally connected, the cooling fan 7 also improves the heat dissipation effect of the heat exchanger body. Furthermore, placing the cooling fan 7 near the outlet 52 helps to better cool the refrigerant within the heat exchange tubes containing the outlet 52 (such as the fourth heat exchange tube 24 in this embodiment), better ensuring the subcooling of the refrigerant at the outlet 52, thus guaranteeing the cooling capacity of the air conditioning system.

[0030] The cooling fan 7 can be an axial fan, centrifugal fan, or mixed-flow fan, etc. The cooling fan 7 includes fan blades 71 and a frame 72. The number of fan blades 71 can be multiple, and the shape of the frame 72 can be square or other shapes. The frame 72 includes an inner surface 721, which is a ventilation surface that guides airflow. Along the width direction of the heat sink body 1, the inner surface 721 is positioned close to the fins and can be configured to fit against the side wall 14 of the heat sink body 1. A second plane can be defined, which is a plane perpendicular to the width direction of the heat sink body 1. In the height direction of the heat sink body 1, the projection of the fan blades 71 in the second plane overlaps or nearly overlaps with the projection of the fins 6 in the second plane. This ensures that more airflow reaches the fins 6, improving the heat dissipation effect. Furthermore, in this embodiment, along the length direction of the heat sink body 1, the cooling fan 7 is positioned at the middle position near the side where the heat sink body is located. This is because the heat dissipation effect at the middle position of the heat sink is relatively poor compared to other positions. Positioning the cooling fan 7 close to the middle position provides better ventilation and improves the heat dissipation effect.

[0031] See Figure 6 This is a system schematic diagram illustrating one embodiment of a radiator applied to an air conditioning system, to explain the specific application of the radiator 100 in the system. Figure 6 This is a simplified illustration of an air conditioning system, not a complete diagram. The air conditioning system includes a compressor 201, a condenser 202, an expansion element 203, an evaporator 204, and a radiator 100. The radiator 100 is connected between the condenser 202 and the expansion element 203. Specifically, the outlet of the condenser 202 is connected to the inlet of the radiator 100, and the outlet of the radiator 100 is connected to the inlet of the expansion element 203. It should also be noted that, regarding the working medium of the radiator, in addition to refrigerant, it can also be a coolant (such as cooling water), in which case the radiator can be used in a heat pump air conditioning system. Of course, the radiator can also be used in other places besides air conditioning systems.

[0032] It should be noted that the above embodiments are only used to illustrate this application and are not intended to limit the technical solutions described in this application. In order to make the description concise, not all possible combinations of the technical features in the above 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.

[0033] The definitions of "upper," "lower," "left," "right," "front," "back," "inner," and "outer" are based solely on the orientation or positional relationship shown in the accompanying drawings. They are merely for the convenience of describing this application and for simplifying the description, and should not be construed as limitations on this application. In addition, the ordinal numbers such as "first" and "second" are based on the accompanying drawings in the specification and are merely for distinguishing the naming methods of different components. They should not be considered as imposing any order restrictions on the components.

[0034] Although this specification has described the present application in detail with reference to the above embodiments, those skilled in the art should understand that they can still make modifications or equivalent substitutions to the present application, and all technical solutions and improvements that do not depart from the spirit and scope of the present application should be covered within the scope of the claims of the present application.

Claims

1. A radiator, comprising a heat exchange tube, a heat dissipation body, and a connecting pipe, wherein the heat dissipation body includes a connecting hole that penetrates the heat dissipation body, characterized in that: The number of heat exchange tubes, connecting tubes, and connecting holes are all multiple. The heat exchange tubes and connecting tubes are set separately or a portion of the heat exchange tubes and connecting tubes are integrally formed. The heat exchange tubes are arranged and distributed along the width direction of the heat dissipation body. A portion of the heat exchange tubes are disposed through the connecting holes and pass through the heat dissipation body, while another portion of the heat exchange tubes are located outside the heat dissipation body, and the heat exchange tubes are connected to each other through the connecting pipes. Alternatively, at least a portion of the connecting holes may be provided as heat exchange tubes, at least a portion of the heat exchange tubes may be located outside the heat dissipation body, the heat exchange tubes may be connected to the connecting holes via connecting pipes, and the heat exchange tubes may be connected to each other via connecting pipes. The heat exchange tubes include a first heat exchange tube, a second heat exchange tube, a third heat exchange tube, and a fourth heat exchange tube. Along the width direction of the heat dissipation body, the first heat exchange tube and the third heat exchange tube are disposed near the middle position of the heat dissipation body, and the second heat exchange tube and the fourth heat exchange tube are disposed near their respective sides of the heat dissipation body. The second heat exchange tube is disposed on the side of the first heat exchange tube closest to the heat dissipation body, the first heat exchange tube is disposed closer to the second heat exchange tube than the third heat exchange tube, and the fourth heat exchange tube is disposed on the opposite side of the heat dissipation body than the third heat exchange tube. Define a first plane, which is a plane perpendicular to the length direction of the heat dissipation body. Define the outer diameter of the first heat exchange tube as D1, the outer diameter of the second heat exchange tube as D2, the outer diameter of the third heat exchange tube as D3, and the outer diameter of the fourth heat exchange tube as D4. Along the width direction of the heat dissipation body, the vertical distance from the center of the projection of the first heat exchange tube on the first plane to one side edge of the projection of the heat dissipation body on the first plane is defined as S1, and the vertical distance from the center of the projection of the second heat exchange tube on the first plane to the one side edge of the projection of the heat dissipation body on the first plane is defined as S2, where S1>S2, S1≥D1 / 2+D2, S1-S2≥D1 / 2+D2 / 2; The vertical distance from the center of the projection of the third heat exchange tube onto the first plane to the opposite edge of the projection of the heat dissipation body onto the first plane is defined as S3, and the vertical distance from the center of the projection of the fourth heat exchange tube onto the first plane to the opposite edge of the projection of the heat dissipation body onto the first plane is defined as S4, where S3>S4, S3≥D3 / 2+D4, and S3-S4≥D3 / 2+D4 / 2. The vertical distance between the center of the projection of the first heat exchange tube onto the first plane and the center of the projection of the third heat exchange tube onto the first plane is defined as S5, where 0.5(S1+S3)≤S5≤1.5(S1+S3).

2. The radiator according to claim 1, characterized in that: The radiator includes an inlet and an outlet, which are the ports of the heat exchange tube, or the inlet and the outlet are separately provided, and the inlet and the outlet are respectively connected to the heat exchange tube; the inlet and the outlet are located on the same side of the radiator body.

3. The radiator according to claim 2, characterized in that: The radiator also includes fins, and there are multiple fins. The fins are arranged at equal intervals along the length of the radiator body. The fins are connected and fixed to the radiator body, and the heat exchange tubes located outside the radiator body pass through the fins.

4. The radiator according to claim 3, characterized in that: The radiator also includes a cooling fan, which is located on the side of the radiator near the outlet along the width direction of the radiator body, and is connected and fixed to the radiator body.

5. The radiator according to claim 4, characterized in that: Along the length of the heat sink body, the cooling fan is positioned at the middle of the side near the heat sink body; the cooling fan includes fan blades and an inner side surface, the inner side surface is positioned close to the fins, and the inner side surface is in contact with the side wall of the heat sink body; Define a second plane, which is a plane perpendicular to the width direction of the heat dissipation body. In the height direction of the heat dissipation body, the projection of the fan blade in the second plane overlaps or tends to overlap with the projection of the fins in the second plane.

6. The radiator according to any one of claims 1-5, characterized in that: The connecting pipe includes a first connecting pipe, a second connecting pipe, and a third connecting pipe. The first heat exchange pipe passes through the heat dissipation body and is connected to the second heat exchange pipe through the first connecting pipe. The second heat exchange pipe is located outside the heat dissipation body. The second heat exchange pipe is connected to the third heat exchange pipe through the second connecting pipe. The third heat exchange pipe passes through the heat dissipation body and is connected to the fourth heat exchange pipe through the third connecting pipe. The fourth heat exchange pipe is located outside the heat dissipation body. The second heat exchange pipe and the fourth heat exchange pipe are located on the same side of the heat dissipation body.

7. The radiator according to claim 6, characterized in that: The second heat exchange tube and the fourth heat exchange tube are arranged to pass through the fins of the radiator; the connecting pipe is a U-shaped pipe.

8. An air conditioning system, the air conditioning system comprising a condenser and an expansion element, characterized in that; The air conditioning system further includes a radiator, which is the radiator according to any one of claims 1-7, and the radiator is connected between the condenser and the expansion element; The outlet of the condenser is connected to the inlet of the radiator, and the outlet of the radiator is connected to the inlet of the expansion element.

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