Heat dissipation control method of air conditioning system and air conditioning system

Abstract

The application relates to a heat dissipation control method of an air conditioning system, and particularly provides a heat dissipation control method of an air conditioning system and the air conditioning system. In order to solve the problem that the existing electric control equipment heat dissipation system cannot accurately adjust the refrigerant flow, causing the pipeline pressure drop of the air conditioning system to be high, the air conditioning system comprises a radiator and a refrigerant circulation loop, the radiator is used for heat dissipation of electric control equipment of the air conditioning system, the first flow channel and the second flow channel are arranged in the radiator, the first flow channel is communicated with the refrigerant circulation loop through a first branch, the second flow channel is communicated with the refrigerant circulation loop through a second branch, and a throttling element is arranged on the second branch; the control method comprises the following steps: obtaining the temperature T1 of the electric control equipment; and selectively opening the throttling element according to the temperature T1 of the electric control equipment. The heat exchange capacity of the radiator is adjusted by adjusting the flow of the refrigerant entering the second flow channel, the heat dissipation capacity is accurately controlled, the heat dissipation capacity of the radiator is matched with the temperature of the electric control equipment, and the pipeline pressure drop of the air conditioning system is reduced.

Description

Technical Field

[0001] This invention relates to the technical field of heat dissipation control methods for air conditioning systems, and specifically provides a heat dissipation control method and an air conditioning system for an air conditioning system. Background Technology

[0002] Outdoor units of air conditioning systems are equipped with electrical control devices, which contain heat-generating elements such as electrical control modules to regulate compressor operation. When the compressor runs for extended periods or the outdoor temperature rises, the temperature of these heat-generating elements can increase, potentially leading to overheating failures. Therefore, current technology incorporates a refrigerant radiator within the electrical control device. The refrigerant within the radiator absorbs heat from the heat-generating elements, thus lowering their temperature. However, taking the electrical control module as an example, its temperature fluctuates constantly due to changes in outdoor seasonal temperature and indoor unit load. Since the heat absorption capacity of the refrigerant radiator is limited, it cannot intelligently and precisely regulate the refrigerant flow rate, thereby failing to reduce the increased pressure drop in the air conditioning system piping caused by the refrigerant radiator.

[0003] Accordingly, there is a need in the field for a new method for controlling the heat dissipation of air conditioning systems to solve the problem that the existing electronic control equipment heat dissipation systems cannot accurately adjust the refrigerant flow, resulting in high pressure drop in the air conditioning system pipelines. Summary of the Invention

[0004] The present invention aims to solve the above-mentioned technical problems, namely, to solve the problem that the existing electronic control equipment heat dissipation system cannot accurately adjust the refrigerant flow, resulting in a high pressure drop in the air conditioning system pipeline.

[0005] In a first aspect, the present invention provides a heat dissipation control method for an air conditioning system, the air conditioning system including a radiator and a refrigerant circulation loop, the radiator being used to dissipate heat for the electronic control equipment of the air conditioning system, the radiator having a first flow channel and a second flow channel, the first flow channel being connected to the refrigerant circulation loop through a first branch, the second flow channel being connected to the refrigerant circulation loop through a second branch, and a throttling element being provided on the second branch; the control method includes: acquiring the temperature T1 of the electronic control equipment; and selectively activating the throttling element according to the temperature T1 of the electronic control equipment.

[0006] In the preferred embodiment of the heat dissipation control method for the above-mentioned air conditioning system, the step of "selectively opening the throttling element according to the temperature T1 of the electronic control equipment" further includes:

[0007] When the second preset temperature ≥ T1 ≥ the first preset temperature, the throttling element is turned on, and the opening degree of the throttling element is the first preset opening degree.

[0008] In the preferred embodiment of the heat dissipation control method of the above-mentioned air conditioning system, the step of "selectively opening the throttling element according to the temperature T1 of the electronic control device" further includes: when the third preset temperature > T1 > the second preset temperature, the opening degree of the throttling element is the second preset opening degree.

[0009] In the preferred embodiment of the heat dissipation control method of the above-mentioned air conditioning system, the step of "selectively opening the throttling element according to the temperature T1 of the electronic control equipment" further includes: when T1 ≥ the third preset temperature, the opening degree of the throttling element is the third preset opening degree.

[0010] In the preferred embodiment of the heat dissipation control method of the above-mentioned air conditioning system, the step of "when the third preset temperature > T1 > the second preset temperature, the opening degree of the throttling element is the second preset opening degree" further includes: when the third preset temperature > T1 > the second preset temperature, the opening degree of the throttling element is the second preset opening degree, and the compressor frequency of the air conditioning system gradually decreases according to the first preset rate.

[0011] In the preferred embodiment of the heat dissipation control method of the above-mentioned air conditioning system, the step of "when T1≥the third preset temperature, the opening degree of the throttling element is the third preset opening degree" further includes: when T1≥the third preset temperature, the opening degree of the throttling element is the third preset opening degree, and the compressor frequency of the air conditioning system gradually decreases according to the second preset rate.

[0012] In the preferred embodiment of the heat dissipation control method of the above-mentioned air conditioning system, the step of "selectively opening the throttling element according to the temperature T1 of the electronic control device" further includes: when T1 < first preset temperature, the throttling element is closed.

[0013] In the preferred embodiment of the heat dissipation control method of the above-mentioned air conditioning system, the control method further includes: obtaining the external ambient temperature T2 of the electronic control equipment; the step of "when the second preset temperature ≥ T1 ≥ the first preset temperature, the throttling element is turned on, and the opening degree of the throttling element is the first preset opening degree" further includes: when the second preset temperature ≥ T1 ≥ the first preset temperature and T2 ≥ the fourth preset temperature, the throttling element is turned on, and the opening degree of the throttling element is the first preset opening degree.

[0014] In a preferred embodiment of the heat dissipation control method for the above-mentioned air conditioning system, the control method further includes: when the second preset temperature ≥ T1 ≥ the first preset temperature or T2 < the fourth preset temperature, the throttling element is turned off.

[0015] The present invention also provides an air conditioning system, the air conditioning system including a controller and a memory, the memory being adapted to store multiple program codes, the program codes being adapted to be loaded and run by the controller to execute the heat dissipation control method of the air conditioning system described in any of the above technical solutions.

[0016] Those skilled in the art will understand that the air conditioning system of the present invention includes a radiator and a refrigerant circulation loop. The radiator is used to dissipate heat for the electronic control equipment of the air conditioning system. The radiator is provided with a first flow channel and a second flow channel. The first flow channel is connected to the refrigerant circulation loop through a first branch, and the second flow channel is connected to the refrigerant circulation loop through a second branch. A throttling element is provided on the second branch. The control method of the air conditioning system includes: acquiring the temperature T1 of the electronic control equipment; and selectively opening the throttling element according to the temperature T1 of the electronic control equipment.

[0017] By employing the above technical solution, this invention, through the internal arrangement of multiple refrigerant channels within the radiator and the control of refrigerant flow rate through the opening and closing of a throttling element, allows for the opening of multiple channels to increase refrigerant flow within the radiator when the temperature of the electronic control equipment is high, thereby enhancing the radiator's heat exchange effect. Specifically, when the temperature of the electronic control equipment is low, the throttling element is closed, and the refrigerant cools the equipment only through the first channel, saving energy and preventing condensation caused by the low temperature of the equipment. When the temperature of the electronic control equipment is high, the throttling element is opened, allowing both the first and second channels to cool the equipment simultaneously. Furthermore, the heat exchange capacity of the radiator can be adjusted by regulating the refrigerant flow rate into the second channel. Unlike simply reducing air conditioning system pipeline pressure drop by optimizing the shape and size of the flow channel cavity, this invention adds a flow-controllable flow channel inside the radiator, thereby adjusting the refrigerant flow of the radiator according to actual needs. This allows for precise control of the radiator's heat dissipation capacity, matching its heat dissipation capacity with the temperature of the electrical control equipment and the outdoor ambient temperature. While achieving optimal heat dissipation, it reduces the pipeline pressure drop of the air conditioning system. Furthermore, compared to traditional refrigerant radiators, the internal temperature is more than 5°C lower, further ensuring the reliability of the module board operation and ensuring the normal operation of the air conditioning system under high ambient temperature conditions. Attached Figure Description

[0018] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

[0019] Figure 1 This is a schematic diagram of the air conditioning system of the present invention;

[0020] Figure 2 This is a flowchart of the main steps of the heat dissipation control method of the air conditioning system of the present invention;

[0021] Figure 3 This is a flowchart of the steps of the first embodiment of the heat dissipation control method for the air conditioning system of the present invention;

[0022] Figure 4 This is a flowchart of the steps of the second embodiment of the heat dissipation control method for the air conditioning system of the present invention.

[0023] List of reference numerals in the attached diagram:

[0024] 1. Radiator; 11. First flow channel; 12. Second flow channel; 2. First branch; 3. Second branch; 4. Refrigerant circulation loop; 5. Throttling element. Detailed Implementation

[0025] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the invention and are not intended to limit the scope of protection of the invention. Those skilled in the art can make adjustments as needed to adapt to specific applications.

[0026] It should be noted that in the description of this invention, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," indicating 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 invention. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0028] Specifically, refer to Figure 1The air conditioning system includes a radiator 1, and the electrical control equipment includes an electrical control box and heat-generating elements such as electrical control modules installed inside the electrical control box. The radiator 1 is located inside the electrical control box or in another location close to the electrical control box to dissipate heat from the electrical control equipment. The air conditioning system also includes a refrigerant circulation loop 4 formed by pipes sequentially connecting a compressor (not shown in the figure), a condenser (not shown in the figure), and an evaporator (not shown in the figure). The refrigerant circulation loop 4 is used to cool the room, and the liquid refrigerant in the refrigerant circulation loop 4 is also circulated to the radiator 1 to cool the electrical control equipment. Alternatively, the air conditioning system may also have a separate refrigerant circulation loop 4 for cooling the electrical control equipment. The refrigerant circulation loop 4 is not used for regulating the room temperature, but only for dissipating heat from the radiator 1. Those skilled in the art can flexibly configure the refrigerant circulation loop 4 as needed. The specific structure of the refrigerant circulation loop 4 does not constitute a limitation of the present invention, as long as it can provide refrigerant for heat exchange to the radiator 1, it should be within the scope of protection of the present invention.

[0029] Continue to refer to Figure 1 Specifically, the radiator 1 has two flow channels, namely a first flow channel 11 and a second flow channel 12. The first flow channel 11 is connected to the refrigerant circulation loop 4 of the air conditioning system through a first branch 2, and the second flow channel 12 is connected to the refrigerant circulation loop 4 of the air conditioning system through a second branch 3. A throttling element 5 is provided on the second branch 3, which is specifically an electronic expansion valve. However, it should be noted that the throttling element 5 can be any other element used to regulate the refrigerant flow, such as an electronic expansion valve or a thermostatic expansion valve. Those skilled in the art can set it according to their needs, and therefore all such elements should fall within the protection scope of this invention.

[0030] like Figure 2 As shown, to solve the problem of high pressure drop in air conditioning system pipelines caused by the inability of existing electronic control equipment heat dissipation systems to accurately adjust refrigerant flow, the heat dissipation control method of the air conditioning system of the present invention includes:

[0031] Step S01: Obtain the temperature T1 of the electrical control equipment;

[0032] Step S02: Selectively activate the throttling element according to the temperature T1 of the electrical control equipment.

[0033] The temperature T1 of the electrical control equipment can be measured by a temperature sensor installed outside or inside the electrical control box. The temperature sensor obtains the heating status of the heating elements inside the electrical control box, and based on the heating status, a throttling element is selectively activated to allow refrigerant to enter the second flow channel 12 of the radiator 1, thereby improving the heat exchange effect of the radiator 1. Specifically, the temperature T1 of the electrical control equipment can be the temperature of the electrical control module, the temperature of the electrical control box itself, or the temperature of other heating elements of the electrical control equipment. Those skilled in the art can set it as needed, as long as the temperature T1 reflects the heating status of the electrical control equipment, all such temperatures should fall within the protection scope of this invention.

[0034] The advantages of the above-described configuration are as follows: By setting multiple refrigerant channels inside the radiator 1 and controlling the flow rate of refrigerant into these channels by controlling the opening and closing of the throttling element, the present invention can increase the refrigerant flow rate within the radiator 1 when the temperature of the electronic control equipment is high, thereby enhancing the heat exchange effect of the radiator 1. Specifically, when the temperature of the electronic control equipment is low, the throttling element is closed, and the refrigerant only passes through the first channel 11 to cool the electronic control equipment, thereby saving energy and preventing condensation caused by the low temperature of the electronic control equipment. When the temperature of the electronic control equipment is high, the throttling element is opened, and the first channel 11 and the second channel 12 simultaneously cool the electronic control equipment. Furthermore, the heat exchange capacity of the radiator 1 can be adjusted by regulating the flow rate of refrigerant entering the second channel 12. Unlike simply reducing the pressure drop in air conditioning system pipes by optimizing the shape and size of the flow channel cavity, this invention adds a flow-controllable flow channel inside the radiator 1. This allows for precise control of the refrigerant flow rate of the radiator 1 according to actual needs, enabling precise control of the radiator 1's heat dissipation capacity. This ensures that the heat dissipation capacity of the radiator 1 matches the temperature of the electrical control equipment and the outdoor ambient temperature, achieving optimal heat dissipation while reducing the pressure drop in the air conditioning system pipes. Furthermore, compared to traditional refrigerant radiators, the internal temperature is more than 5°C lower, further ensuring the reliability of the module board operation and guaranteeing the normal operation of the air conditioning system under high ambient temperature conditions.

[0035] like Figure 3 As shown, in the first embodiment, the heat dissipation control method of the air conditioning system specifically includes:

[0036] Step S11: Obtain the temperature T1 of the electronic control module;

[0037] The electrical control module is located inside the electrical control box and is connected to the computer board. The power of the compressor can be adjusted through the electrical control module. The heat sink 1 is located inside the electrical control box to cool down the heat-generating components inside the electrical control box.

[0038] Step S12: When the second preset temperature ≥ T1 ≥ the first preset temperature, the electronic expansion valve opens, and the opening degree of the electronic expansion valve is the first preset opening degree;

[0039] Step S13: When the third preset temperature > T1 > the second preset temperature, the opening degree of the electronic expansion valve is the second preset opening degree;

[0040] Step S14: When T1 ≥ the third preset temperature, the opening degree of the electronic expansion valve is the third preset opening degree;

[0041] Step S15: When T1 < first preset temperature, the electronic expansion valve closes.

[0042] In the first embodiment, the first preset temperature is lower than the second preset temperature, and the second preset temperature is lower than the third preset temperature. For example, the first, second, and third preset temperatures are set to 70°C, 80°C, and 90°C, respectively. Secondly, the first preset opening degree is lower than the second preset opening degree, and the second preset opening degree is lower than the third preset opening degree. For example, the first, second, and third preset opening degrees are set to 2 pls / s, 5 pls / s, and the electronic expansion valve is fully open, i.e., the maximum opening degree of the electronic expansion valve, respectively.

[0043] When the temperature T1 of the electronic control module gradually rises to above 70°C but below 80°C, the electronic expansion valve is opened and its opening is set to 2 pls / s. When the temperature T1 continues to rise to above 80°C but below 90°C, the opening of the electronic expansion valve is adjusted to 5 pls / s. When the temperature T1 continues to rise to above 90°C, the opening of the electronic expansion valve is adjusted to the maximum opening, for example, 100 pls / s. In this embodiment, the opening of the electronic expansion valve is precisely controlled according to the temperature of the electronic control module inside the electronic control equipment to regulate the refrigerant flow rate into the second flow channel 12. This allows the heat dissipation capacity of the radiator 1 to match the temperature of the electronic control module, reducing the increase in air conditioning system pipeline pressure drop caused by the refrigerant radiator 1 dissipating heat for the electronic control equipment. This further ensures the reliability of the module operation and guarantees the normal operation of the air conditioning system under high ambient temperature conditions.

[0044] In one possible implementation, step S11 further includes: acquiring the temperature T1 of the electronic control module and the ambient temperature T2 of the external environment of the electronic control device;

[0045] Step: When the second preset temperature ≥ T1 ≥ the first preset temperature or T2 ≥ the fourth preset temperature, the electronic expansion valve opens, and the opening degree of the electronic expansion valve is the first preset opening degree.

[0046] The aforementioned external ambient temperature refers to the temperature of the area where the electronic control equipment is located. When the external ambient temperature is high, the temperature of the electronic control equipment will also rise. Therefore, when either the temperature T1 of the electronic control module or the external ambient temperature T2 exceeds the normal value, the electronic expansion valve can be opened so that the refrigerant in the second flow channel 12 and the refrigerant in the first flow channel 11 can participate in cooling together. Especially when the outdoor ambient temperature is high, opening the electronic expansion valve before the temperature of the electronic control equipment rises to the threshold can increase the heat absorption capacity of the radiator 1 in advance and prevent the electronic control equipment from overheating.

[0047] like Figure 4 As shown, in the second embodiment, the heat dissipation control method of the air conditioning system specifically includes:

[0048] Step S21: Obtain the temperature T1 of the electronic control module;

[0049] Step S22: When the second preset temperature ≥ T1 ≥ the first preset temperature, the electronic expansion valve opens, and the opening degree of the electronic expansion valve is the first preset opening degree. The compressor frequency of the air conditioning system remains unchanged.

[0050] Step S23: When the third preset temperature > T1 > the second preset temperature, the opening degree of the electronic expansion valve is the second preset opening degree, and the compressor frequency of the air conditioning system gradually decreases according to the first preset rate.

[0051] Step S24: When T1 ≥ the third preset temperature, the opening degree of the electronic expansion valve is the third preset opening degree, and the compressor frequency of the air conditioning system gradually decreases according to the second preset rate.

[0052] Step S25: When T1 < first preset temperature, the electronic expansion valve closes.

[0053] In the second embodiment, the compressor of the air conditioning system provides refrigerant to the entire system for regulating indoor temperature. When the air conditioning system operates for extended periods or at high frequencies, the temperature of the electronic control module also increases. Therefore, when the temperature of the electronic control module rises, the opening of the electronic expansion valve is adjusted to increase the flow rate of the second flow channel 12 to improve heat exchange, while the compressor frequency is reduced to decrease the indoor unit load, thereby quickly adjusting the temperature of the electronic control module to a reasonable range. Specifically, for example, the first, second, and third preset temperatures are set to 70°C, 80°C, and 90°C, respectively. Furthermore, the first preset opening is less than the second preset opening, and the second preset opening is less than the third preset opening. For example, the first, second, and third preset openings are set to 2 pls / s, 5 pls / s, and the electronic expansion valve is fully open (i.e., the maximum opening of the electronic expansion valve is 100 pls / s), respectively. The first and second preset rates are set to 2 rps / s and 5 rps / s, respectively.

[0054] When the temperature T1 of the electronic control module is greater than or equal to 70℃ and less than or equal to 80℃, the opening degree of the electronic expansion valve is 2pls / s, and the frequency of the air conditioner compressor remains unchanged. When the temperature T1 of the electronic control module is greater than 80℃ and less than 90℃, the opening degree of the electronic expansion valve is 5pls / s, and the compressor frequency gradually decreases at a rate of 2rps / s. When the temperature T1 of the electronic control module is greater than or equal to 90℃, the opening degree of the electronic expansion valve is maximized, and the frequency of the air conditioner compressor gradually decreases at a rate of 5rps / s. The higher the temperature of the electronic control module, the larger the opening degree of the electronic expansion valve, and the faster the rate of decrease in the compressor frequency. This allows the refrigerant to quickly enter the second flow channel 12 and reduces the load on the indoor unit, thus intelligently cooling the electronic control equipment and preventing overheating.

[0055] As described in the first paragraph of this section, the above embodiments are merely used to illustrate the principles of the present invention and are not intended to limit the scope of protection of the present invention. Without departing from the principles of the present invention, those skilled in the art can adjust the above structure so that the present invention can be applied to more specific application scenarios.

[0056] In addition, the present invention also provides an air conditioning system having the heat dissipation control method of the air conditioning system described in any of the above embodiments.

[0057] Although the steps in the above embodiments are described in the above order, those skilled in the art will understand that in order to achieve the effect of this embodiment, different steps do not need to be executed in such order. They can be executed simultaneously (in parallel) or in reverse order. For example, in step S23, the adjustment of the opening of the electronic expansion valve and the adjustment of the frequency of the air conditioning compressor can be executed sequentially or simultaneously. These simple changes are all within the protection scope of this invention.

[0058] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments of the present invention can also be implemented by hardware related to computer program instructions. The computer program can be stored in a computer-readable storage medium, and when the computer program is executed by a processor, it can implement the steps of the various method embodiments described above. The computer program includes computer program code, which can be in the form of source code, object code, executable file, or some intermediate form. The computer-readable storage medium can include any entity or device capable of carrying the computer program code, a medium, a USB flash drive, a portable hard drive, a magnetic disk, an optical disk, a computer memory, a read-only memory, a random access memory, an electrical carrier signal, a telecommunication signal, and a software distribution medium, etc. It should be noted that the content included in the computer-readable storage medium can be appropriately added or removed according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, the computer-readable storage medium does not include electrical carrier signals and telecommunication signals.

[0059] Furthermore, it should be understood that since the control module is only described as a functional unit of the system of the present invention, the physical device corresponding to the control module can be the processor itself, or a part of the processor's software, hardware, or a combination of software and hardware. Therefore, the number of control modules can be configured as needed.

[0060] Those skilled in the art will understand that the control module can be adaptively split. Specific splitting of the control module will not cause the technical solution to deviate from the principles of the present invention; therefore, the technical solutions after splitting will all fall within the protection scope of the present invention.

[0061] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A heat dissipation control method for an air conditioning system, characterized in that, The air conditioning system includes a radiator and a refrigerant circulation loop. The radiator is used to dissipate heat for the electronic control equipment of the air conditioning system. The radiator is provided with a first flow channel and a second flow channel. The first flow channel is connected to the refrigerant circulation loop through a first branch, and the second flow channel is connected to the refrigerant circulation loop through a second branch. A throttling element is provided on the second branch. Control methods include: Obtain the temperature T1 of the electrical control equipment; The throttling element is selectively activated based on the temperature T1 of the electrical control equipment; The step of "selectively opening the throttling element according to the temperature T1 of the electronic control equipment" includes: When the second preset temperature ≥ T1 ≥ the first preset temperature, the throttling element is turned on, and the opening degree of the throttling element is the first preset opening degree; When the third preset temperature > T1 > the second preset temperature, the opening degree of the throttling element is the second preset opening degree; When T1 < the first preset temperature, the throttling element is closed; Wherein, the first preset opening degree is less than the second preset opening degree.

2. The heat dissipation control method for an air conditioning system according to claim 1, characterized in that, The step of "selectively opening the throttling element according to the temperature T1 of the electronic control equipment" further includes: When T1 ≥ the third preset temperature, the opening degree of the throttling element is the third preset opening degree.

3. The heat dissipation control method for an air conditioning system according to claim 1, characterized in that, The step of "when the third preset temperature > T1 > the second preset temperature, the opening degree of the throttling element is the second preset opening degree" further includes: When the third preset temperature > T1 > the second preset temperature, the opening degree of the throttling element is the second preset opening degree, and the compressor frequency of the air conditioning system gradually decreases according to the first preset rate.

4. The heat dissipation control method for an air conditioning system according to claim 1, characterized in that, The step of "when T1 ≥ the third preset temperature, the opening degree of the throttling element is the third preset opening degree" further includes: When T1 ≥ the third preset temperature, the opening degree of the throttling element is the third preset opening degree, and the compressor frequency of the air conditioning system gradually decreases according to the second preset rate.

5. The heat dissipation control method for an air conditioning system according to claim 1, characterized in that, The control method further includes: Obtain the external ambient temperature T2 of the electrical control equipment; The step of "when the second preset temperature ≥ T1 ≥ the first preset temperature, the throttling element opens, and the opening degree of the throttling element is the first preset opening degree" further includes: When the second preset temperature ≥ T1 ≥ the first preset temperature, or T2 ≥ the fourth preset temperature, the throttling element is turned on, and the opening degree of the throttling element is the first preset opening degree.

6. An air conditioning system, characterized in that, The air conditioning system includes a controller and a memory, the memory being adapted to store multiple program codes, the program codes being adapted to be loaded and run by the controller to perform the heat dissipation control method of the air conditioning system according to any one of claims 1-5.

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