Heat dissipation control method for electric control component in air conditioner, electric control component and air conditioner

Abstract

The invention discloses a heat dissipation control method of an electric control component in an air conditioner, the electric control component and the air conditioner, the air conditioner further comprises a shell, a compressor, a first heat exchanger, a second heat exchanger, an air supply fan and an air exhaust fan, the electric control component is arranged on an air inlet path of the air exhaust fan and provided with an air inlet, and the first heat exchanger and the second heat exchanger are arranged in the shell. The electric control component comprises an electric control box, a circuit board and a heating device, the electric control box adopts a closed design, the circuit board is accommodated in the electric control box, the heating device is arranged on the circuit board, and an air deflector is arranged corresponding to the air inlet. The electrical parameters are used for representing the heating condition in the electric control box; and at least one of the opening degree of the air deflector and the rotating speed of the exhaust fan is controlled according to the electrical parameters. According to the control method, the heat dissipation problem of components in the electric control box can be solved, the cost is low, and the energy efficiency is high.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular to a heat dissipation control method of an electric control component in an air conditioner, a computer-readable storage medium, an electric control component and an air conditioner. Background Art

[0002] As living standards gradually improve, people pay more and more attention to the quality of life. Especially in the hot summer, installing air conditioners in the kitchen can make people feel more comfortable when cooking in the kitchen. Since the kitchen air conditioner is placed in the kitchen, the electric control box needs to be sealed to avoid oil fume pollution. In order to improve safety, the pressure of the compressor is higher than that of traditional compressors when it is working. The electric power of the matching electric control device must be increased accordingly. The increase in electric power and in a closed electric control environment brings challenges to the thermal design of power heating devices.

[0003] Among the heat dissipation solutions of the current related technologies, air cooling or refrigerant cooling can solve the heat dissipation of components with relatively small size and relatively low height. However, for other components with large size and relatively high height, there is no better heat dissipation solution in a closed environment. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems in the related art to a certain extent. To this end, the first object of the present invention is to provide a heat dissipation control method for an electric control component in an air conditioner, by determining the electrical parameters of the air conditioner when the air conditioner is running in a cooling mode, wherein the electrical parameters are used to characterize the heating situation in the electric control box, and then controlling at least one of the opening of the air guide plate and the speed of the exhaust fan according to the electrical parameters, so as to solve the heat dissipation problem of the components in the electric control box, with low cost and high energy efficiency.

[0005] A second object of the present invention is to provide a computer-readable storage medium.

[0006] The third object of the present invention is to provide an electronic control component.

[0007] A fourth object of the present invention is to provide an air conditioner.

[0008] To achieve the above-mentioned purpose, a first embodiment of the present invention proposes a heat dissipation control method for an electronically controlled component in an air conditioner, wherein the air conditioner also includes a casing, a compressor, a first heat exchanger, a second heat exchanger, an air supply fan and an exhaust fan, wherein the casing has an air supply duct and an exhaust duct isolated from each other, the first heat exchanger is arranged in the air supply duct, the second heat exchanger is arranged in the exhaust duct, the first heat exchanger and the second heat exchanger are both connected to the compressor and serve as a condenser and an evaporator respectively, the inlet of the air supply fan is connected to the air supply duct and the outlet of the air supply fan is connected to the indoor side, the inlet of the exhaust fan is connected to the exhaust duct and the The outlet of the exhaust fan is connected to the outdoor side, the electric control component is arranged on the air inlet path of the exhaust fan and is provided with an air inlet, the electric control component includes an electric control box, a circuit board, and a heating device, the electric control box adopts a closed design, the circuit board is stored in the electric control box, the heating device is arranged on the circuit board, and an air guide plate is provided corresponding to the air inlet, the method comprises: when the air conditioner is operating in a cooling mode, determining the electrical parameters of the air conditioner, wherein the electrical parameters are used to characterize the heating conditions in the electric control box; and controlling at least one of the opening of the air guide plate and the rotation speed of the exhaust fan according to the electrical parameters.

[0009] According to the heat dissipation control method of the electric control components in the air conditioner according to the embodiment of the present invention, the electrical parameters of the air conditioner are first determined when the air conditioner is running in the cooling mode, wherein the electrical parameters are used to characterize the heating situation in the electric control box, and then at least one of the opening of the air guide plate and the speed of the exhaust fan is controlled according to the electrical parameters. Thus, the method can solve the heat dissipation problem of the components in the electric control box, with low cost and high energy efficiency.

[0010] In addition, the heat dissipation control method of the electric control component in the air conditioner according to the above embodiment of the present invention may also have the following additional technical features:

[0011] According to an embodiment of the present invention, the electrical parameter includes at least one of the temperature in the electric control box and the electrical power of the air conditioner.

[0012] According to one embodiment of the present invention, when the electrical parameter includes the temperature in the electrical control box, at least one of the opening of the air guide plate and the rotational speed of the exhaust fan is controlled according to the electrical parameter, including: when the temperature in the electrical control box is greater than or equal to a first preset temperature, controlling the opening of the air guide plate to open to a preset maximum opening, and controlling the exhaust fan to operate at a preset maximum rotational speed; when the temperature in the electrical control box is less than a second preset temperature, controlling the opening of the air guide plate to open to a first preset opening, and controlling the exhaust fan to operate at a preset minimum rotational speed, wherein the first preset opening is less than the maximum opening.

[0013] According to one embodiment of the present invention, when the temperature in the electrical control box is greater than or equal to the second preset temperature and less than the first preset temperature, at least one of the opening of the air guide plate and the speed of the exhaust fan is controlled according to the electrical parameter, and also includes: determining the temperature range in which the temperature in the electrical control box is located; according to the temperature range in which the temperature in the electrical control box is located, controlling the opening of the air guide plate to change between the second preset opening and the third preset opening, and controlling the exhaust fan to maintain a target speed, wherein the second preset opening is greater than the first preset opening and less than the third preset opening, the third preset opening is less than the maximum opening, and the target speed is determined according to the system requirements of the air conditioner.

[0014] According to one embodiment of the present invention, when the electrical parameter includes the electric power of the air conditioner, at least one of the opening of the air guide plate and the rotational speed of the exhaust fan is controlled according to the electrical parameter, including: when the electric power is greater than or equal to a first preset power, controlling the opening of the air guide plate to open to a preset maximum opening, and controlling the exhaust fan to operate at a preset maximum rotational speed; when the electric power is less than a second preset power, controlling the opening of the air guide plate to open to a fourth preset opening, and controlling the exhaust fan to operate at a preset minimum rotational speed, wherein the fourth preset opening is less than the maximum opening.

[0015] According to one embodiment of the present invention, when the electric power is greater than or equal to the second preset power and less than the first preset power, at least one of the opening of the air guide plate and the speed of the exhaust fan is controlled according to the electrical parameter, and also includes: determining the power range in which the electric power is located; according to the power range in which the electric power is located, controlling the opening of the air guide plate to change between a fifth preset opening and a sixth preset opening, and controlling the exhaust fan to maintain a target speed, wherein the fifth preset opening is greater than the fourth preset opening and less than the sixth preset opening, the sixth preset opening is less than the maximum opening, and the target speed is determined according to the system requirements of the air conditioner.

[0016] According to one embodiment of the present invention, when the air conditioner is operated in air supply mode, the method further includes: controlling the opening of the air guide plate to open to a preset maximum opening, and controlling the exhaust fan to operate at a preset minimum speed.

[0017] To achieve the above-mentioned purpose, the second embodiment of the present invention proposes a computer-readable storage medium, on which a heat dissipation control program for electronic control components in an air conditioner is stored. When the heat dissipation control program is executed by a processor, the above-mentioned heat dissipation control method for electronic control components in an air conditioner is implemented.

[0018] The computer-readable storage medium according to the embodiment of the present invention can solve the heat dissipation problem of components in the electric control box by implementing the above-mentioned heat dissipation control method of the electric control component in the air conditioner when executed, with low cost and high energy efficiency.

[0019] To achieve the above-mentioned purpose, an embodiment of the third aspect of the present invention proposes an electronic control component, including a memory, a processor, and a heat dissipation control program for the electronic control component in an air conditioner stored in the memory and executable on the processor. When the processor executes the heat dissipation control program, the above-mentioned heat dissipation control method for the electronic control component in the air conditioner is implemented.

[0020] The electric control component according to the embodiment of the present invention can solve the heat dissipation problem of components in the electric control box by executing the above-mentioned heat dissipation control method of the electric control component in the air conditioner, with low cost and high energy efficiency.

[0021] To achieve the above-mentioned purpose, an air conditioner proposed in an embodiment of the fourth aspect of the present invention includes: a shell, a compressor, a first heat exchanger, a second heat exchanger, an air supply fan and an exhaust fan, the shell having an air supply duct and an exhaust duct isolated from each other, the first heat exchanger is arranged in the air supply duct, the second heat exchanger is arranged in the exhaust duct, the first heat exchanger and the second heat exchanger are both connected to the compressor and serve as a condenser and an evaporator respectively, the inlet of the air supply fan is connected to the air supply duct and the outlet of the air supply fan is connected to the indoor side, the inlet of the exhaust fan is connected to the exhaust duct and the outlet of the exhaust fan is connected to the indoor side Outside; an electric control component, which is arranged on the air inlet path of the exhaust fan and is provided with an air inlet, and the electric control component includes an electric control box, a circuit board, and a heating device, the electric control box adopts a closed design, the circuit board is stored in the electric control box, the heating device is arranged on the circuit board, and an air guide plate is provided corresponding to the air inlet, the circuit board is configured to determine the electrical parameters of the air conditioner when the air conditioner is operating in a cooling mode, and control at least one of the opening of the air guide plate and the rotation speed of the exhaust fan according to the electrical parameters, wherein the electrical parameters are used to characterize the heating conditions in the electric control box.

[0022] According to the air conditioner of the embodiment of the present invention, the circuit board is configured to determine the electrical parameters of the air conditioner when the air conditioner is operating in cooling mode, and control at least one of the opening of the air guide plate and the speed of the exhaust fan according to the electrical parameters, wherein the electrical parameters are used to characterize the heating conditions in the electrical control box, thereby solving the heat dissipation problem of the components in the electrical control box with low cost and high energy efficiency.

[0023] In addition, the air conditioner according to the above embodiment of the present invention may also have the following additional technical features:

[0024] According to an embodiment of the present invention, the heating device includes a capacitive device and an inductive device disposed on the circuit board, and the capacitive device and the inductive device are housed in the electric control box.

[0025] According to one embodiment of the present invention, the electrical control box includes an inner shell and an outer shell covering the inner shell, the inner shell having a through discharge hole, the inner end of the discharge hole being connected to the interior of the electrical control box, the outer shell covering the outer end of the discharge hole, and a gap connected to the outer end of the discharge hole and a slit connecting the gap to the outside of the electrical control box are formed between the outer shell and the inner shell, and the flow width of the gap and the slit are both smaller than the flow equivalent diameter of the inner end of the discharge hole.

[0026] According to an embodiment of the present invention, there are a plurality of discharge holes; and / or, the flow area of ​​the discharge holes gradually decreases along the direction from the inner end to the outer end.

[0027] According to an embodiment of the present invention, in the air flow direction of the heat dissipation duct, the exhaust hole is located downstream of the capacitive device.

[0028] According to one embodiment of the present invention, the electric control component further includes: an air duct cover, which is arranged outside the electric control box and located on the side of the inductive device away from the circuit board, a heat dissipation air duct is formed between the air duct cover and the electric control box, and the air duct cover itself or together with the electric control box defines an air inlet of the heat dissipation air duct, and the air duct cover itself or together with the electric control box defines an air outlet of the heat dissipation air duct.

[0029] According to an embodiment of the present invention, the refrigerant in the compressor includes carbon dioxide.

[0030] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a flow chart of a heat dissipation control method of an electric control component in an air conditioner according to an embodiment of the present invention;

[0032] Figure 2 is a three-dimensional appearance diagram of an air conditioner according to an embodiment of the present invention;

[0033] Figure 3 is a cross-sectional view of an air conditioner according to an embodiment of the present invention;

[0034] Figure 4 is a schematic diagram of the structure of an electric control component according to an embodiment of the present invention;

[0035] Figure 5 is based on Figure 4 A partial enlarged view of area A of the example shown;

[0036] Figure 6 A flowchart of a heat dissipation control method for an electric control component in an air conditioner according to a specific example of the present invention;

[0037] Figure 7 A flowchart of a heat dissipation control method for an electric control component in an air conditioner according to a specific example of the present invention;

[0038] Figure 8 FIG. 4 is a block diagram of an electric control component according to an embodiment of the present invention. DETAILED DESCRIPTION

[0039] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0040] In one embodiment of the present invention, Figure 2 and Figure 3 As shown, the air conditioner 1000 includes a housing 200, a compressor 300, a first heat exchanger 400, a second heat exchanger 500, an air supply fan 600, and an exhaust fan 700. The housing 200 has an air supply duct 210 and an exhaust duct 220 that are isolated from each other. The first heat exchanger 400 is arranged in the air supply duct 210, and the second heat exchanger 500 is arranged in the exhaust duct 220. The first heat exchanger 400 and the second heat exchanger 500 are both connected to the compressor 300 and serve as an evaporator and a condenser, respectively. The inlet of the air supply fan 600 is connected to the air supply duct 210 and the outlet of the air supply fan 600 is connected to the indoor side. The inlet of the exhaust fan 700 is connected to the exhaust duct 220 and the outlet of the exhaust fan 700 is connected to the outdoor side. The electric control component 100 is arranged on the air inlet path of the exhaust fan 700 and is provided with an air inlet 51.

[0041] It is worth noting that the air conditioner 1000 can cool the indoor side or heat the indoor side. When the air conditioner 1000 cools the indoor side, the first heat exchanger 400 acts as an evaporator, the second heat exchanger 500 acts as a condenser, the airflow provided by the air supply fan 600 passes through the evaporator to release heat, and the cold air flows into the indoor side along the air supply duct 210, thereby cooling the indoor side; the airflow provided by the exhaust fan 700 passes through the condenser to take away the heat of the condenser, and the hot air flows to the outdoor side along the exhaust duct 220. When the air conditioner 1000 heats the indoor side, the first heat exchanger 400 acts as a condenser, the second heat exchanger 500 acts as an evaporator, the airflow provided by the air supply fan 600 passes through the condenser to absorb heat, and the hot air flows into the indoor side along the air supply duct 210, thereby heating the indoor side; the airflow provided by the exhaust fan 700 passes through the evaporator to release heat, and the cold air flows to the outdoor side along the exhaust duct 220. Alternatively, the air conditioner may have only one of the above two functions.

[0042] The electric control component 100 is arranged on the air inlet path of the exhaust fan 700. When the air supply fan 600 provides a flowing airflow to the second heat exchanger 500, the air supply fan 600 also causes an airflow to flow through the electric control component 100 to dissipate heat from the electric control component 100. The flowing airflow provided by the air supply fan 600 flows through the heat dissipation air duct 50 to perform heat exchange with the electric control box 1, thereby improving the heat dissipation capacity of the heating device 3 in the electric control component 100 and further improving the working reliability of the electric control component 100. Since the electric control component 100 is arranged on the air inlet path of the exhaust fan 700, the electric control component 100 will not interfere with the air supply on the indoor side, and will not affect the indoor cooling or heating efficiency of the air conditioner 1000.

[0043] The air conditioner 1000 of the embodiment of the present invention can achieve heat dissipation of the electric control component 100 by using the exhaust fan 700, without setting an additional exhaust fan, simplifying the structure of the air conditioner 1000, reducing the volume and manufacturing cost of the air conditioner 1000, and facilitating the installation of the air conditioner 1000. In addition, it is also avoided that the exhaust fan occupies the internal space of the housing 200, which is beneficial to the flow of air in the exhaust duct 220 and the air supply duct 210, and avoiding reducing the air supply volume of the air conditioner 1000.

[0044] In one embodiment of the present invention, Figure 2 and Figure 4 As shown, the electric control component 100 may include an electric control box 1, a circuit board 2, and a heating device 3. The electric control box 1 adopts a closed design, the circuit board 2 is stored in the electric control box 1, the heating device 3 is arranged on the circuit board 2, and an air guide plate 800 ( Figure 4 The air guide plate 800 can be opened by a stepping motor to change the amount of natural wind entering the electric control box 1. The air duct cover 4 itself or together with the electric control box 1 defines the air inlet 51 of the heat dissipation duct 50.

[0045] The circuit board 2 is configured to determine the electrical parameters of the air conditioner 1000 when the air conditioner 1000 is operating in a cooling mode, and to control at least one of the opening of the air guide plate 800 and the speed of the exhaust fan 700 according to the electrical parameters, wherein the electrical parameters are used to characterize the heating conditions inside the electrical control box 100.

[0046] When the air conditioner 1000 is operated in cooling mode, the compressor 300, the air supply fan 600 and the exhaust fan 700 of the air conditioner 1000 are all started and operated normally. The negative pressure generated by the rotation of the exhaust fan 700 will suck in the external natural wind, a part of which participates in the heat exchange of the air conditioner 1000 and discharges the heat of the compressor 300, and the other part can absorb and discharge the heat generated by the electric control box 100. Figure 2As shown, the direction of the arrow is that natural wind enters the exhaust fan 700 from the air inlet 51 and is then discharged from the exhaust duct 220 .

[0047] Combination Figure 3 and Figure 4 As shown, the air-cooled heat sink 7 is located at the upper end, and the inductive device 31 (such as a PFC inductor) and the capacitive device 32 (such as a high-voltage large capacitor) are located at the lower end. It should be noted that the positions of the air-cooled heat sink 7, the inductive device 31 and the capacitive device 32 can be interchanged, that is, the inductive device 31 and the capacitive device 32 are located at the upper end, and the air-cooled heat sink 7 is located at the lower end. The natural wind with a relatively low temperature first enters from the air inlet 51, passes through the heat dissipation duct 50, and takes away the heat generated by the inductive device 31 and the capacitive device 32 when they are working. After heat exchange between the fins of the air-cooled heat sink 7, it can be converted into natural wind with a higher temperature and enter the interior of the air conditioner 1000. Then, the exhaust fan 700 can drive the rotation of the fan blades, and the negative pressure generated will discharge the natural wind with a higher temperature from the exhaust duct 220 of the exhaust fan 700, thereby completing the entire heat dissipation process.

[0048] In one embodiment of the present invention, Figure 3 As shown, the tops of the inductive device 31 (such as the PFC inductor 310) and the capacitive device 32 (such as the high-voltage large capacitor 320) can be made into windows (the electric control box 100 can be composed of an iron shell wrapped around a plastic shell, and the window is formed by cutting a part of the plastic shell), so as to be more conducive to conducting the heat to the heat dissipation duct formed by the metal shell.

[0049] The following describes a heat dissipation control method for an electric control component in an air conditioner, a computer-readable storage medium, an electric control component, and an air conditioner according to embodiments of the present invention with reference to the accompanying drawings.

[0050] Figure 1 The figure is a flow chart of a heat dissipation control method of an electric control component in an air conditioner according to an embodiment of the present invention.

[0051] like Figure 1 As shown, the heat dissipation control method of the electric control component in the air conditioner according to the embodiment of the present invention may include the following steps:

[0052] S1, when the air conditioner is running in cooling mode, determining electrical parameters of the air conditioner, wherein the electrical parameters are used to characterize the heating condition in the electric control box, and the electrical parameters may include at least one of the temperature in the electric control box and the electric power of the air conditioner.

[0053] S2, controlling at least one of the opening of the air guide plate and the rotation speed of the exhaust fan according to the electrical parameters.

[0054] Specifically, the air conditioner can have multiple operating modes, such as cooling mode, heating mode, air supply mode, etc., and can determine the current operating mode of the air conditioner according to the user's instructions. For example, the user can select the current operating mode of the air conditioner through the remote control corresponding to the air conditioner, or through a mobile device connected to the air conditioner, such as through an application on a mobile phone.

[0055] When the air conditioner is running in cooling mode, the compressor, air supply fan and exhaust fan of the air conditioner are working. After the air conditioner has been running for a period of time, the heating device in the electric control box will heat up seriously. Therefore, it is necessary to determine the heating situation in the electric control box so as to take corresponding measures to dissipate heat for the heating device according to the heating situation, so as to prevent the heating device from being damaged due to untimely heat dissipation for a long time. When determining the heating situation in the electric control box, the heating situation in the electric control box can be determined by obtaining the temperature in the electric control box. For example, when the obtained temperature is higher than a certain set value, it can be determined that the heating situation in the electric control box is more serious. Alternatively, the heating situation in the electric control box can be determined by obtaining the electric power of the air conditioner according to the electric power. For example, when the obtained electric power is higher than a certain set value, it can be determined that the heating situation in the electric control box is more serious.

[0056] After determining the electrical parameters of the air conditioner, at least one of the opening of the air guide plate and the speed of the exhaust fan can be controlled according to the electrical parameters. For example, when controlling the opening of the air guide plate according to the electrical parameters, such as controlling the opening of the air guide plate according to the temperature in the electric control box, the opening of the air guide plate can be adjusted to a larger size when the temperature in the electric control box is higher, so as to allow more natural wind to enter and dissipate the heat of the heating components in the electric control box. For another example, when controlling the opening of the air guide plate according to the electrical power of the air conditioner, the opening of the air guide plate can be adjusted to a larger size when the electrical power is higher, so as to allow more natural wind to enter and dissipate the heat of the heating components in the electric control box.

[0057] For another example, when the speed of the exhaust fan is controlled according to electrical parameters, such as when the speed of the exhaust fan is controlled according to the temperature in the electric control box, the speed of the exhaust fan can be adjusted to be larger when the temperature in the electric control box is higher, and the natural wind is discharged faster by the negative pressure generated, thus completing the current heat dissipation process. For another example, when the speed of the exhaust fan is controlled according to the electrical power of the air conditioner, the speed of the exhaust fan can be adjusted to be larger when the electrical power is higher, and the natural wind is discharged faster by the negative pressure generated, thus completing the current heat dissipation process.

[0058] The opening of the air guide plate and the speed of the exhaust fan can also be controlled at the same time. For example, when the temperature in the electric control box is higher, the opening of the air guide plate is adjusted to a larger size to allow more natural wind to enter and dissipate the heat of the heating components in the electric control box, and the speed of the exhaust fan is adjusted to a larger size to expel the natural wind faster through the generated negative pressure, thereby completing the current heat dissipation process. For another example, when the electric power is greater, the opening of the air guide plate is adjusted to a larger size to allow more natural wind to enter and dissipate the heat of the heating components in the electric control box, and the speed of the exhaust fan is adjusted to a larger size to expel the natural wind faster through the generated negative pressure, thereby completing the current heat dissipation process.

[0059] Therefore, when the air conditioner is running in cooling mode, the electrical parameters of the air conditioner are determined, wherein the electrical parameters are used to characterize the heat conditions in the electrical control box, and then at least one of the opening of the air guide plate and the speed of the exhaust fan is controlled according to the electrical parameters, thereby solving the heat dissipation problem of components in the electrical control box with low cost and high energy efficiency.

[0060] According to one embodiment of the present invention, when the electrical parameter includes the temperature in the electric control box, at least one of the opening of the air guide plate and the speed of the exhaust fan is controlled according to the electrical parameter, including: when the temperature in the electric control box is greater than or equal to the first preset temperature, the opening of the air guide plate is controlled to open to a preset maximum opening, and the exhaust fan is controlled to run at a preset maximum speed; when the temperature in the electric control box is less than a second preset temperature, the opening of the air guide plate is controlled to open to a first preset opening, and the exhaust fan is controlled to run at a preset minimum speed, wherein the first preset opening is less than the maximum opening. The first preset opening can be determined according to actual conditions, the first preset temperature can be determined according to actual conditions, and the second preset temperature can be determined according to actual conditions.

[0061] Specifically, in the case where the electrical parameters include the temperature inside the electric control box, when controlling at least one of the opening of the air guide plate and the speed of the exhaust fan according to the temperature inside the electric control box, the temperature inside the electric control box can be first compared with a first preset temperature. If the temperature inside the electric control box is greater than or equal to the first preset temperature, the opening of the air guide plate can be controlled to be opened to a preset maximum opening, and the exhaust fan can be controlled to run at a preset maximum speed. For example, a temperature sensor can be installed in the electric control box. If the temperature obtained by the temperature sensor is 70 degrees, if the first preset temperature is set to 55 degrees, the temperature inside the electric control box can be determined. If the temperature inside the electric control box is greater than or equal to the first preset temperature, the temperature inside the electric control box is relatively high, so that the opening of the air guide plate can be controlled to be opened to the preset maximum opening, and the exhaust fan can be controlled to run at the preset maximum speed. For example, the opening of the air guide plate can be controlled to be opened to 100%, and the exhaust fan can run at 1200 rpm, so that natural wind with a relatively low temperature enters through the air guide plate, and can take away the heat inside the electric control box through the heat dissipation air duct to achieve the heat dissipation effect. At the same time, the rotation of the exhaust fan drives the fan blades to move at a high speed, and the negative pressure generated discharges the natural wind with a higher temperature from the exhaust port of the exhaust fan, completing the entire heat dissipation process.

[0062] The temperature in the electric control box is compared with the second preset temperature. If the temperature in the electric control box is lower than the second preset temperature, the opening of the air guide plate can be controlled to open to the first preset opening, and the exhaust fan can be controlled to run at a preset minimum speed. For example, if the temperature obtained by the temperature sensor is 30 degrees, if the second preset temperature is set to 35 degrees, it can be determined that the temperature in the electric control box is lower than the second preset temperature, so that the opening of the air guide plate can be controlled to open to the first preset opening, and the exhaust fan can be controlled to run at a preset minimum speed, wherein the first preset opening is lower than the maximum opening, for example, the maximum opening is 100%, The first preset opening can be 40%, and the preset minimum speed can be 500 rpm. When the temperature in the current electric control box is low, the opening of the air guide plate is reduced, so that natural wind with a relatively low temperature enters through the air duct cover, and can take away the heat in the electric control box through the heat dissipation air duct to achieve the heat dissipation effect, and reduce the wind speed of the exhaust fan, operate at the minimum speed to drive the fan blades to move, and the negative pressure generated will discharge the natural wind with a higher temperature from the exhaust port of the exhaust fan, completing the entire heat dissipation process, and can adjust the air volume when the electric control box is dissipating heat, improve the energy efficiency of the air conditioner, and achieve the purpose of energy saving.

[0063] According to one embodiment of the present invention, when the temperature in the electric control box is greater than or equal to the second preset temperature and less than the first preset temperature, at least one of the opening of the air guide plate and the speed of the exhaust fan is controlled according to the electrical parameters, and further includes: determining the temperature range of the temperature in the electric control box; according to the temperature range of the temperature in the electric control box, controlling the opening of the air guide plate to change between the second preset opening and the third preset opening, and controlling the exhaust fan to maintain the target speed, wherein the second preset opening is greater than the first preset opening and less than the third preset opening, the third preset opening is less than the maximum opening, and the target speed is determined according to the system requirements of the air conditioner. The second preset opening and the third preset opening can be determined according to actual conditions.

[0064] Specifically, the temperature in the electric control box is compared with the first preset temperature and the second preset temperature. If the temperature in the electric control box is greater than or equal to the second preset temperature and less than the first preset temperature, the temperature range in which the temperature in the electric control box is located can be determined first. For example, four temperature ranges can be divided between the first preset temperature and the second preset temperature. For example, if the first preset temperature is 55 degrees and the second preset temperature is 35 degrees, the temperature of 50-55 degrees (greater than or equal to 50 degrees and less than 55 degrees) can be used as the first temperature range, the temperature of 45-50 degrees (greater than or equal to 45 degrees and less than 50 degrees) can be used as the second temperature range, and the temperature of 40-45 degrees (greater than or equal to 40 degrees and less than 35 degrees) can be used as the second temperature range. 45 degrees) as the third temperature interval, and the temperature of 35-40 degrees (greater than or equal to 35 degrees and less than 40 degrees) as the fourth temperature interval. If the temperature in the electric control box obtained by the temperature sensor is 52 degrees, it can be determined that the temperature in the electric control box is in the first temperature interval. If the temperature in the electric control box obtained by the temperature sensor is 48 degrees, it can be determined that the temperature in the electric control box is in the second temperature interval. If the temperature in the electric control box obtained by the temperature sensor is 43 degrees, it can be determined that the temperature in the electric control box is in the third temperature interval. If the temperature in the electric control box obtained by the temperature sensor is 36 degrees, it can be determined that the temperature in the electric control box is in the fourth temperature interval.

[0065] It should be noted that when dividing the temperature intervals, the division may be performed in a proportional manner or in a non-proportional manner, such as dividing the intervals in a step-type manner, which will not be elaborated here.

[0066] After determining the temperature range in which the temperature in the electric control box is located, the opening of the air guide plate can be controlled to change between the second preset opening and the third preset opening according to the temperature range in which the temperature in the electric control box is located, wherein the second preset opening is greater than the first preset opening and less than the third preset opening, and the third preset opening is less than the maximum opening. For example, the maximum opening of the air guide plate is 100%, the third preset opening can be set to 80%, and the second preset opening can be set to 50%. It should be noted that the above 80% and 50% refer to the proportion of the current opening of the air guide plate cover to the total opening of the air guide plate. Thus, the opening of the air guide plate can be controlled to change between 50%-80% according to the temperature range in which the temperature in the electric control box is located.

[0067] For example, when the temperature of the electric control box is 52 degrees, it can be determined that the temperature inside the electric control box is in the first temperature range. In this range, the opening of the air guide plate can be controlled to be 80%; when the temperature inside the electric control box is 48 degrees, it can be determined that the temperature inside the electric control box is in the second temperature range. In this range, the opening of the air guide plate can be controlled to be 70%; when the temperature inside the electric control box is 43 degrees, it can be determined that the temperature inside the electric control box is in the third temperature range. In this range, the opening of the air guide plate can be controlled to be 60%; when the temperature inside the electric control box is 36 degrees, it can be determined that the temperature inside the electric control box is in the fourth temperature range. In this range, the opening of the air guide plate can be controlled to be 50%.

[0068] Furthermore, when the opening of the air guide plate is controlled to change between the second preset opening and the third preset opening, the exhaust fan is also controlled to maintain a target speed, wherein the target speed is determined based on the system requirements of the air conditioner. For example, the target speed may be 1000 rpm. In the above example, when the opening of the air guide plate is controlled to change between 50% and 80%, the exhaust fan is also controlled to maintain operation at 1000 rpm to drive the fan blades to move at high speed. The negative pressure generated discharges the natural wind with a higher temperature from the exhaust port of the exhaust fan, thereby completing the entire heat dissipation process.

[0069] According to one embodiment of the present invention, when the electrical parameters include the electric power of the air conditioner, at least one of the opening of the air guide plate and the speed of the exhaust fan is controlled according to the electrical parameters, including: when the electric power is greater than or equal to a first preset power, controlling the opening of the air guide plate to open to a preset maximum opening, and controlling the exhaust fan to operate at a preset maximum speed; when the electric power is less than a second preset power, controlling the opening of the air guide plate to open to a fourth preset opening, and controlling the exhaust fan to operate at a preset minimum speed, wherein the fourth preset opening is less than the maximum opening.

[0070] Specifically, when the electrical parameters include the electric power of the air conditioner, when controlling at least one of the opening of the air guide plate and the speed of the exhaust fan according to the electric power of the air conditioner, the electric power can be first compared with a first preset power. If the electric power is greater than or equal to the first preset power, the opening of the air guide plate can be controlled to be opened to a preset maximum opening, and the exhaust fan can be controlled to run at a preset maximum speed. For example, the electric power of the air conditioner can be obtained by a power meter, or the electric power of the air conditioner can be determined based on the current and voltage when the air conditioner is working. If the electric power obtained is 2200W, if the first preset power is set to 2100W, it can be determined that the temperature in the electric control box is greater than or equal to the first preset temperature, and the current electric power of the air conditioner is relatively high, so the opening of the air guide plate can be controlled to be opened to the preset maximum opening, and the exhaust fan can be controlled to run at the preset maximum speed. For example, the opening of the air guide plate can be controlled to be opened to 100%, and the exhaust fan can run at 1200 rpm, so that natural wind with a relatively low temperature enters through the air duct cover, and can take away the heat in the electric control box through the heat dissipation air duct to achieve the heat dissipation effect. At the same time, the rotation of the exhaust fan drives the fan blades to move at high speed, and the negative pressure generated discharges the natural wind with a higher temperature from the exhaust port of the exhaust fan, completing the entire heat dissipation process.

[0071] The electric power of the air conditioner is compared with the second preset power. If the electric power is less than the second preset power, the opening of the air guide plate can be controlled to open to a fourth preset opening, and the exhaust fan can be controlled to run at a preset minimum speed. For example, when the electric power of the air conditioner is obtained to be 800W, if the second preset power is set to 900W, it can be determined that the electric power of the air conditioner is less than the second preset power, so that the opening of the air guide plate can be controlled to open to a fourth preset opening, and the exhaust fan can be controlled to run at a preset minimum speed, wherein the fourth preset opening is less than the maximum opening. For example, the maximum opening is 100%, and the fourth preset opening can be 40% ( It can be the same as the first preset opening or different), the preset minimum speed can be 500 rpm, so that when the current air conditioner has low electric power, the opening of the air guide plate is reduced, so that natural wind with a relatively low temperature enters through the air duct cover, and can take away the heat in the electronic control box through the heat dissipation air duct to achieve the heat dissipation effect, and reduce the wind speed of the exhaust fan, operate at the minimum speed to drive the fan blades to move, and the negative pressure generated will discharge the natural wind with a higher temperature from the exhaust port of the exhaust fan, completing the entire heat dissipation process, and can adjust the air volume when the electronic control box is dissipating heat, improve the energy efficiency of the air conditioner, and achieve the purpose of energy saving.

[0072] According to one embodiment of the present invention, when the electric power is greater than or equal to the second preset power and less than the first preset power, at least one of the opening of the air guide plate and the speed of the exhaust fan is controlled according to the electrical parameters, and also includes: determining the power range in which the electric power is located; according to the power range in which the electric power is located, controlling the opening of the air guide plate to change between a fifth preset opening and a sixth preset opening, and controlling the exhaust fan to maintain a target speed, wherein the fifth preset opening is greater than the fourth preset opening and less than the sixth preset opening, the sixth preset opening is less than the maximum opening, and the target speed is determined according to the system requirements of the air conditioner.

[0073] Specifically, the electric power is compared with the first preset power and the second preset power. If the electric power is greater than or equal to the second preset power and less than the first preset power, the power range in which the electric power is located can be determined first. For example, four power ranges can be divided between the first preset power and the second preset power. For example, the first preset power is 2100W and the second preset power is 900W. The power of 1800-2100W (greater than or equal to 1800W and less than 2100W) can be used as the first power range, the power of 1500-1800W (greater than or equal to 1500W and less than 1800W) can be used as the second power range, the power of 1200-1500W (greater than or equal to 1200W and less than 1500W) can be used as the third power range, and the power of 900-1200W (greater than or equal to 900W and less than 1200W) can be used as the fourth power range. If the electric power obtained is 1900W, it can be determined that the electric power is in the first power range. If the electric power obtained is 1600W, it can be determined that the electric power is in the second power range. If the electric power obtained is 1400W, it can be determined that the electric power is in the third power range. If the electric power obtained is 1000W, it can be determined that the electric power is in the fourth power range.

[0074] It should be noted that when dividing the power intervals, the division may be performed in a proportional manner or in a non-proportional manner, such as dividing the intervals in a step-type manner, which will not be elaborated here.

[0075] After determining the power range in which the electric power is located, the opening of the air guide plate can be controlled to change between the fifth preset opening and the sixth preset opening according to the temperature range in which the electric power is located, wherein the fifth preset opening is greater than the fourth preset opening and less than the sixth preset opening, and the sixth preset opening is less than the maximum opening. For example, the maximum opening of the air guide plate is 100%, the sixth preset opening can be set to 80% (which can be the same as the third preset opening or different), and the fifth preset opening can be set to 50% (which can be the same as the second preset opening or different). It should be noted that the above 80% and 50% refer to the proportion of the current opening of the air guide plate to the total opening of the air duct cover. Therefore, the opening of the air guide plate can be controlled to change between 50%-80% according to the power range in which the electric power is located.

[0076] For example, if the electric power is 1900W, it can be determined that the electric power is in the first power range. When in this range, the opening of the air guide plate can be controlled to 80%; if the electric power is 1600W, it can be determined that the electric power is in the second power range. When in this range, the opening of the air guide plate can be controlled to 70%; if the electric power is 1400W, it can be determined that the electric power is in the third power range. When in this range, the opening of the air guide plate can be controlled to 60%; if the electric power is 1000W, it can be determined that the electric power is in the fourth power range. When in this range, the opening of the air guide plate can be controlled to 50%.

[0077] Furthermore, when the opening of the air guide plate is controlled to change between the fifth preset opening and the sixth preset opening, the exhaust fan is also controlled to maintain a target speed, wherein the target speed is determined based on the system requirements of the air conditioner. For example, the target speed may be 1100 rpm. In the above example, when the opening of the air guide plate is controlled to change between 50% and 80%, the exhaust fan is also controlled to maintain operation at 1100 rpm to drive the fan blades to move at high speed. The negative pressure generated discharges the natural wind with a higher temperature from the exhaust port of the exhaust fan, thereby completing the entire heat dissipation process.

[0078] In another embodiment of the present invention, if a temperature sensor is installed in the electric control box, the opening of the air guide plate can be adjusted based on the temperature in the electric control box obtained by the temperature sensor and the electric power of the air conditioner. Specifically, it can be determined which of the temperature in the electric control box and the electric power of the air conditioner meets the condition first, and one of them shall prevail. For example, when the temperature sensor first obtains that the temperature in the electric control box is 60 degrees, which is higher than the first preset temperature of 55 degrees, at least one of the opening of the air guide plate and the speed of the exhaust fan can be controlled according to the temperature in the electric control box, such as controlling the opening of the air guide plate to open to the preset maximum opening, and controlling the exhaust fan to run at the preset maximum speed. If the temperature sensor currently fails or the temperature sensor is not updated in time when obtaining the temperature in the electric control box, and the electric power of the air conditioner changes significantly at this time, such as the electric power is reduced to 1000W, at this time, at least one of the opening of the air guide plate and the speed of the exhaust fan can be controlled according to the electric power, such as controlling the opening of the air guide plate to 50%, and controlling the exhaust fan to run at 1100 rpm. Therefore, by controlling the opening of the air guide plate and the rotation speed of the exhaust fan in two ways, the reliability of the air conditioner operation can be improved.

[0079] In addition, in one embodiment of the present invention, after the air conditioner is shut down, if the current opening of the air guide plate is not 100%, for example, the current air duct opening is 60%, after the air conditioner is shut down, the opening of the air guide plate can be controlled to be 100%, that is, when the air conditioner is started up next time, the opening of the air guide plate can be prevented from being unable to be adjusted normally and opened at the maximum opening, thereby preventing the temperature rise of the electric control box from exceeding the standard, such as when the temperature inside the electric control box is too high, or the electric power of the air conditioner is too large, to ensure normal heat dissipation of the electric control box.

[0080] According to one embodiment of the present invention, when the air conditioner is operated in the air supply mode, the method further includes: controlling the opening of the air guide plate to open to a preset maximum opening, and controlling the exhaust fan to operate at a preset minimum speed.

[0081] Specifically, the air conditioner can have multiple operating modes, such as cooling mode, heating mode, air supply mode, etc., and the current operating mode of the air conditioner can be determined according to the user's instructions. For example, the user can select the current operating mode of the air conditioner through the air conditioner remote control, or through a mobile device connected to the air conditioner, such as through a mobile phone application. When the air conditioner is running in the air supply mode, the compressor does not work, and the opening of the air guide plate can be controlled to open to the preset maximum opening, and the exhaust fan can be controlled to run at a preset minimum speed, such as controlling the opening of the air guide plate to 100% and the exhaust fan speed to 500 rpm, so as to obtain more natural wind, circulate the air in the room, and keep the air fresh.

[0082] As a specific example, Figure 6 As shown, the heat dissipation control method for determining the heat dissipation of the electric control components in the air conditioner according to the temperature in the electric control box may include the following steps:

[0083] S101, determine whether the current operation mode of the air conditioner is the air supply mode. If yes, execute step S102; if not, execute step S103.

[0084] S102, controlling the opening of the air guide plate to open to a preset maximum opening, and controlling the exhaust fan to run at a preset minimum speed.

[0085] S103, determining whether the current operating mode of the air conditioner is the cooling mode. If yes, execute step S104; if no, execute step S101.

[0086] S104, controlling the opening of the air guide plate to be opened to a preset maximum opening, and obtaining the temperature in the electric control box.

[0087] S105, determining whether the temperature in the electric control box is greater than or equal to a first preset temperature. If yes, executing step S106; if no, executing step S107.

[0088] S106, controlling the opening of the air guide plate to open to a preset maximum opening, and controlling the exhaust fan to run at a preset maximum speed, and entering step S111.

[0089] S107, determining whether the temperature in the electric control box is lower than a second preset temperature. If yes, executing step S108; if no, executing step S109.

[0090] S108, controlling the opening of the air guide plate to open to a first preset opening, and controlling the exhaust fan to run at a preset minimum speed, and entering step S111.

[0091] S109, determining the temperature range of the temperature in the electric control box.

[0092] S110, according to the temperature range of the temperature in the electric control box, controlling the opening of the air guide plate to change between a second preset opening and a third preset opening, and controlling the exhaust fan to maintain a target speed.

[0093] S111, determine whether the air conditioner is in a shutdown or stopped state. If yes, execute step S112; if not, execute step S101.

[0094] S112, controlling the opening of the air guide plate to open to a preset maximum opening, and turning off the air conditioner.

[0095] As a specific example, Figure 7As shown, the method for determining the heat dissipation control of the electric control components in the air conditioner according to the electric power of the air conditioner may include the following steps:

[0096] S201, determine whether the current operation mode of the air conditioner is the air supply mode. If yes, execute step S202; if not, execute step S203.

[0097] S202, controlling the opening of the air guide plate to open to a preset maximum opening, and controlling the exhaust fan to run at a preset minimum speed.

[0098] S203, determining whether the current operating mode of the air conditioner is the cooling mode. If yes, execute step S204; if no, execute step S201.

[0099] S204, controlling the opening of the air guide plate to open to a preset maximum opening, and obtaining the electric power of the air conditioner.

[0100] S205, determining whether the electric power is greater than or equal to a first preset power. If yes, executing step S206; if no, executing step S207.

[0101] S206, control the opening of the air guide plate to open to a preset maximum opening, and control the exhaust fan to run at a preset maximum speed, and enter step S211.

[0102] S207, determine whether the electric power is less than the second preset power. If yes, execute step S208; if not, execute step S209.

[0103] S208, controlling the opening of the air guide plate to open to a fourth preset opening, and controlling the exhaust fan to run at a preset minimum speed, and entering step S211.

[0104] S209, determining the power range in which the electric power is located.

[0105] S210, controlling the opening of the air guide plate to change between a fifth preset opening and a sixth preset opening according to the power range of the electric power, and controlling the exhaust fan to maintain the target speed.

[0106] S211, determine whether the air conditioner is in a shutdown or stopped state. If yes, execute step S212; if not, execute step S201.

[0107] S212, controlling the opening of the air guide plate to open to a preset maximum opening, and turning off the air conditioner.

[0108] In summary, according to the heat dissipation control method of the electric control components in the air conditioner according to the embodiment of the present invention, the electrical parameters of the air conditioner are first determined when the air conditioner is running in the cooling mode, wherein the electrical parameters are used to characterize the heating situation in the electric control box, and then at least one of the opening of the air guide plate and the speed of the exhaust fan is controlled according to the electrical parameters. Therefore, the method can solve the heat dissipation problem of the components in the electric control box, with low cost and high energy efficiency.

[0109] Corresponding to the above embodiment, the present invention also proposes a computer-readable storage medium.

[0110] The computer-readable storage medium of the embodiment of the present invention stores a heat dissipation control program for an electric control component in an air conditioner, and the heat dissipation control program implements the above-mentioned heat dissipation control method for an electric control component in an air conditioner when executed by a processor.

[0111] According to the computer-readable storage medium of the embodiment of the present invention, by executing the above-mentioned heat dissipation control method of the electric control component in the air conditioner, the heat dissipation problem of the components in the electric control box can be solved with low cost and high energy efficiency.

[0112] Corresponding to the above embodiment, the present invention also proposes an electric control component.

[0113] like Figure 8 As shown, the electric control component 100 of the embodiment of the present invention may include: a memory 101, a processor 102, and a heat dissipation control program for the electric control component in the air conditioner stored in the memory 101 and executable on the processor 102. When the processor 102 executes the heat dissipation control program, the above-mentioned heat dissipation control method for the electric control component in the air conditioner is implemented.

[0114] The electric control component according to the embodiment of the present invention can solve the heat dissipation problem of components in the electric control box by executing the above-mentioned heat dissipation control method of the electric control component in the air conditioner, with low cost and high energy efficiency.

[0115] Corresponding to the above embodiment, the present invention also proposes an air conditioner.

[0116] Combination Figures 2 to 5As shown, the air conditioner 1000 of the embodiment of the present invention may include: a housing 200, a compressor 300, a first heat exchanger 400, a second heat exchanger 500, an air supply fan 600, and an exhaust fan 700. The housing 200 has an air supply duct 210 and an exhaust duct 220 that are isolated from each other. The first heat exchanger 400 is arranged in the air supply duct 210, and the second heat exchanger 500 is arranged in the exhaust duct 220. The first heat exchanger 400 and the second heat exchanger 500 are both connected to the compressor 300 and serve as an evaporator and a condenser, respectively. The inlet of the air supply fan 600 is connected to the air supply duct 210 and the outlet of the air supply fan 600 is connected to the indoor side, the inlet of the exhaust fan 700 is connected to the exhaust duct 220 and the outlet of the exhaust fan 700 is connected to the outdoor side; the electric control component 100 is arranged on the air inlet path of the exhaust fan 700, and is provided with an air inlet 51. The electric control component 100 includes an electric control box 1, a circuit board 2, and a heating device 3. The electric control box 1 adopts a closed design. The circuit board 2 is stored in the electric control box 1. The heating device 3 is arranged on the circuit board 2. An air guide plate 800 is provided corresponding to the air inlet 51. The circuit board 2 is configured to determine the electrical parameters of the air conditioner 1000 when the air conditioner 1000 is running in a cooling mode, and control at least one of the opening of the air guide plate 800 and the rotation speed of the exhaust fan 700 according to the electrical parameters, wherein the electrical parameters are used to characterize the heating conditions in the electric control box 100.

[0117] According to an embodiment of the present invention, the heating device 3 includes a capacitive device 32 and an inductive device 31 disposed on the circuit board 2, and the capacitive device 32 and the inductive device 31 are accommodated in the electric control box 1. The electric control box 1 of the embodiment of the present invention is configured as a closed box body, which can prevent pollutants such as oil and dust from entering the electric control box 1, and can prevent oil from contacting the capacitive device 32 and the inductive device 31 and causing adverse effects on the capacitive device 32 and the inductive device 31, thereby improving the working reliability of the capacitive device 32 and the inductive device 31.

[0118] According to one embodiment of the present invention, the electric control box 1 includes an inner shell 11 and an outer shell 12 covering the inner shell 11, the inner shell 11 has a through discharge hole 113, the inner end of the discharge hole 113 is connected to the interior of the electric control box 1, the outer shell 12 covers the outer end of the discharge hole 113, and a gap 121 connected to the outer end of the discharge hole 113 and a gap 122 connecting the gap 121 to the outside of the electric control box 100 are formed between the outer shell 12 and the inner shell 11, and the flow widths of the gap 121 and the gap 122 are both smaller than the flow equivalent diameter D of the inner end of the discharge hole 113.

[0119] Specifically, the discharge hole 113 does not directly connect the inside and outside of the electric control box 1, and the outflow path of the electrolyte is not simply to flow out of the electric control box 1 from the discharge hole 113. A gap 121 is formed between the outer shell 12 and the inner shell 11, and the gap 121 is connected to the outer end of the discharge hole 113. A gap 122 is also formed between the outer shell 12 and the inner shell 11, and the gap 122 is connected to the gap 121 and to the outside of the electric control box 1, and the gap 122 connects the gap 121 to the outside of the electric control box 1. As a result, the electrolyte volatilized from the capacitive device 32 can be discharged to the outside of the electric control box 1 through the discharge hole 113, the gap 121, and the gap 122 in sequence.

[0120] Exemplarily, the gap 121 and the slit 122 are connected and are formed between the inner shell 11 and the outer shell 12. An angle is set between the outflow direction of the gap 121 and the outflow direction of the slit 122 to increase the air flow resistance in the discharge path formed by the discharge hole 113, the gap 121 and the slit 122, and reduce the occurrence of the airflow outside the electric control box 1 flowing into the inside of the electric control box 1 through the discharge path. In some specific embodiments, such as Figure 5 As shown, a gap 121 is formed between the outer shell 12 and the inner shell 11 covering the outer end of the discharge hole 113 , and in the cross-sectional direction, an extending direction of the gap 121 is perpendicular to an extending direction of the slit 122 .

[0121] For example, as shown in Figure 5, the flow width T1 of the gap 121 and the flow width T2 of the gap 122 are both smaller than the equivalent diameter D of the inner end of the discharge hole 113 (i.e., the end connected to the inside of the electric control box 1). When the electrolyte flows along the path of the discharge hole 113, the gap 121 and the gap 122, the flow area of ​​the electrolyte gradually decreases, and the flow rate of the electrolyte gradually increases. This ensures that the discharge path formed by the discharge hole 113, the gap 121 and the gap 122 is unidirectional, and only the electrolyte volatilized by the capacitor can be discharged through the discharge path, and no external airflow will enter the electric control box 1 to dissipate heat and cool down the electrical components inside the electric control box 1. Therefore, this path does not belong to the airflow channel for heat dissipation. In addition, when there is a heat dissipation duct 50 outside, the heat inside the electric control box 1 and the negative pressure of the duct can be used to further improve the efficiency of unidirectional discharge of volatilized electrolyte.

[0122] According to one embodiment of the present invention, Figure 5 As shown, there are multiple discharge holes 113; and / or, the flow area of ​​the discharge hole 113 gradually decreases along the direction from the inner end (i.e., the end connected to the inside of the electric control box 1) to the outer end (i.e., the end connected to the gap 121).

[0123] In some embodiments of the present invention, Figure 5As shown, there are multiple discharge holes 113, which increase the flow width of the electrolyte volatilized from the capacitor flowing out of the electric control box 1 and improve the outflow efficiency of the electrolyte.

[0124] In some embodiments of the present invention, the flow area of ​​the discharge hole 113 gradually decreases along the direction from the inner end (i.e., the end connected to the inside of the electric control box 1) to the outer end (i.e., the end connected to the gap 121), and the electrolyte volatilized from the capacitor flows from the electric control box 1 to the gap 121 through the discharge hole 113 in a unidirectional manner, thereby further ensuring the unidirectionality of the discharge path formed by the discharge hole 113, the gap 121 and the slit 122, and allowing the volatilized electrolyte to be discharged more effectively.

[0125] In some specific embodiments of the present invention, Figure 5 As shown, there are multiple discharge holes 113, and the multiple discharge holes 113 are arranged at intervals along the extension direction of the gap 121, and the communication area between the discharge hole 113 and the gap 121 is increased, thereby improving the outflow efficiency of the electrolyte volatilized from the capacitor. The flow area of ​​each discharge hole 113 gradually decreases along the direction from the inner end to the outer end, and the flow area gradually decreases during the process of the electrolyte flowing from the discharge hole 113 to the gap 121, and the flow rate of the electrolyte gradually increases, so that the electrolyte remains unidirectional during the process of flowing out of the discharge hole 113, and the increase in the flow rate of the electrolyte allows the volatilized electrolyte to be discharged more effectively.

[0126] According to one embodiment of the present invention, in the air flow direction of the heat dissipation duct 50, the discharge hole 113 is located downstream of the capacitive device 32. Figure 4 As shown, the direction of the arrow is the direction of air flow. The air flow first passes through the position opposite to the capacitive device 32, and then passes through the position opposite to the discharge hole 113. Therefore, the electrolyte volatilized from the capacitive device 32 can be discharged more directly and quickly through the heat dissipation duct 50, thereby improving the electrolyte discharge efficiency and improving safety.

[0127] It is understandable that if Figure 4 As shown, the arrow direction is the air flow direction. Figure 5 When the heat dissipation airflow flows through the gap 122, the pressure at the connection point between the gap 122 and the outside of the electric control box 1 is relatively small. By utilizing the negative pressure of the heat dissipation air duct 50, the electrolyte can be more effectively discharged from the electric control box 1 through the gap 122, thereby improving the discharge efficiency of the volatilized electrolyte.

[0128] According to one embodiment of the present invention, the electric control component further includes: an air duct cover 4, which is arranged outside the electric control box 1 and is located on the side of the inductive device 31 away from the circuit board, and a heat dissipation air duct 50 is formed between the air duct cover 4 and the electric control box 1. The air duct cover 4 itself or together with the electric control box 1 defines an air inlet 51 of the heat dissipation air duct 50, and the air duct cover 4 itself or together with the electric control box 1 defines an air outlet 52 of the heat dissipation air duct.

[0129] Specifically, when the electric control component 100 is working, the heat generating device 3 generates heat, and the electric control box 1 of the present invention is not provided with a through hole for heat dissipation, so the inductive device 31 dissipates heat by heat radiation to the electric control box 1. By providing the air duct cover 4, a heat dissipation air duct 50 is formed between the air duct cover 4 and the electric control box 1, and the heat dissipation airflow flows through the heat dissipation air duct 50 to exchange heat with the electric control box 1, taking away the heat radiated from the inductive element to the electric control box 1, thereby accelerating the heat dissipation efficiency of the inductive device 31.

[0130] Optionally, the air duct cover 4 may form an air inlet 51 for the heat dissipation airflow to enter, or the air duct cover 4 and the electric control box 1 may jointly form an air inlet 51 for the heat dissipation airflow to enter. Similarly, the air duct cover 4 may form an air outlet 52 for the heat dissipation airflow to flow out, or the air duct cover 4 and the electric control box 1 may jointly form an air outlet 52 for the heat dissipation airflow to flow out.

[0131] The end of the inductive device 31 away from the circuit board 2 is the distal end of the inductive device 31. The distal end of the inductive device 31 is closest to the electric control box 1. The inductive device 31 mainly radiates heat from the electric control box 1 through the distal end. In some embodiments of the present invention, the air duct cover 4 is arranged outside the electric control box 1 near the distal end of the inductive device 31, so that the heat dissipation air duct 50 is closer to the distal end of the inductive device 31, which is conducive to accelerating the heat dissipation efficiency of the inductive device 31.

[0132] In some specific embodiments of the present invention, the air duct cover 4 is a plastic part, which not only forms the heat dissipation air duct 50, but also plays an insulating role to improve the safety of the electric control component 100. However, it is not limited thereto, and the air duct cover 4 can also be a metal cover, so that the air duct cover 4 can also dissipate heat by heat radiation.

[0133] According to one embodiment of the present invention, the refrigerant in the compressor 300 includes carbon dioxide. Carbon dioxide has a small flow loss, good heat transfer effect, and is safe and non-toxic. However, the critical temperature of carbon dioxide is low and the refrigeration efficiency is low. Therefore, the operating pressure of the air conditioner 1000 is large, and the requirements of the electronic control component 100 for heat dissipation are higher. The air conditioner 1000 is provided with the electronic control component 100 of the above embodiment, which can improve the heat dissipation efficiency of the electronic control component 100 and improve the working stability of the air conditioner 1000.

[0134] It should be noted that for details not disclosed in the air conditioner of the embodiment of the present invention, please refer to the details disclosed in the heat dissipation control method of the electric control component in the air conditioner of the embodiment of the present invention, and the details will not be repeated here.

[0135] According to the air conditioner of the embodiment of the present invention, the circuit board is configured to determine the electrical parameters of the air conditioner when the air conditioner is operating in cooling mode, and control at least one of the opening of the air guide plate and the speed of the exhaust fan according to the electrical parameters, wherein the electrical parameters are used to characterize the heating conditions in the electrical control box, thereby solving the heat dissipation problem of the components in the electrical control box with low cost and high energy efficiency.

[0136] It should be noted that the logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be specifically implemented in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purposes of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection portion with one or more wirings (electronic device), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing in other suitable ways if necessary, and then stored in a computer memory.

[0137] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, a plurality of steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0138] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0139] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0140] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0141] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A method for controlling heat dissipation of an electric control component in an air conditioner, characterized in that: The air conditioner further comprises a housing, a compressor, a first heat exchanger, a second heat exchanger, an air supply fan and an exhaust fan, wherein the housing has an air supply duct and an exhaust duct isolated from each other, the first heat exchanger is arranged in the air supply duct, the second heat exchanger is arranged in the exhaust duct, the first heat exchanger and the second heat exchanger are both connected to the compressor and serve as a condenser and an evaporator respectively, the inlet of the air supply fan is communicated with the air supply duct and the outlet of the air supply fan is communicated to the indoor side, the inlet of the exhaust fan is communicated with the exhaust duct and the outlet of the exhaust fan is communicated to the outdoor side, the electric control component is arranged on the air inlet path of the exhaust fan and is provided with an air inlet, the electric control component comprises an electric control box, a circuit board and a heating device, the electric control box adopts a closed design, the circuit board is accommodated in the electric control box, the heating device is arranged on the circuit board, and an air guide plate is arranged corresponding to the air inlet, the method comprises: When the air conditioner is operated in a cooling mode, determining electrical parameters of the air conditioner, wherein the electrical parameters are used to characterize the heating condition in the electric control box; At least one of the opening of the air guide plate and the rotation speed of the exhaust fan is controlled according to the electrical parameter.

2. The method according to claim 1, characterized in that The electrical parameter includes at least one of a temperature in the electric control box and an electrical power of the air conditioner.

3. The method according to claim 2, characterized in that In a case where the electrical parameter includes the temperature in the electric control box, controlling at least one of the opening of the air guide plate and the rotation speed of the exhaust fan according to the electrical parameter includes: When the temperature in the electric control box is greater than or equal to a first preset temperature, the air guide plate is controlled to open to a preset maximum opening, and the exhaust fan is controlled to run at a preset maximum speed; When the temperature in the electric control box is lower than the second preset temperature, the opening of the air guide plate is controlled to be opened to the first preset opening, and the exhaust fan is controlled to run at a preset minimum speed, wherein the first preset opening is lower than the maximum opening.

4. The method according to claim 3, characterized in that When the temperature in the electric control box is greater than or equal to the second preset temperature and less than the first preset temperature, at least one of the opening of the air guide plate and the speed of the exhaust fan is controlled according to the electrical parameter, further comprising: Determining the temperature range of the temperature in the electric control box; According to the temperature range of the temperature in the electronic control box, the opening of the air guide plate is controlled to change between a second preset opening and a third preset opening, and the exhaust fan is controlled to maintain a target speed, wherein the second preset opening is greater than the first preset opening and less than the third preset opening, the third preset opening is less than the maximum opening, and the target speed is determined according to the system requirements of the air conditioner.

5. The method according to claim 2, characterized in that: In the case where the electrical parameter includes the electrical power of the air conditioner, controlling at least one of the opening of the air guide plate and the rotation speed of the exhaust fan according to the electrical parameter includes: When the electric power is greater than or equal to the first preset power, the air guide plate is controlled to open to a preset maximum opening, and the exhaust fan is controlled to run at a preset maximum speed; When the electric power is less than the second preset power, the opening of the air guide plate is controlled to open to a fourth preset opening, and the exhaust fan is controlled to run at a preset minimum speed, wherein the fourth preset opening is less than the maximum opening.

6. The method according to claim 5, characterized in that When the electric power is greater than or equal to the second preset power and less than the first preset power, at least one of the opening of the air guide plate and the rotation speed of the exhaust fan is controlled according to the electrical parameter, further comprising: determining a power interval in which the electric power is located; According to the power range in which the electric power is located, the opening of the air guide plate is controlled to change between a fifth preset opening and a sixth preset opening, and the exhaust fan is controlled to maintain a target speed, wherein the fifth preset opening is greater than the fourth preset opening and less than the sixth preset opening, and the sixth preset opening is less than the maximum opening, and the target speed is determined according to the system requirements of the air conditioner.

7. The method according to any one of claims 1 to 6, characterized in that When the air conditioner is operated in an air supply mode, the method further comprises: The opening of the air guide plate is controlled to be opened to a preset maximum opening, and the exhaust fan is controlled to run at a preset minimum speed.

8. A computer-readable storage medium, characterized in that: A heat dissipation control program of an electric control component in an air conditioner is stored thereon, and when the heat dissipation control program is executed by a processor, a heat dissipation control method of an electric control component in an air conditioner according to any one of claims 1-7 is implemented.

9. An electric control component, characterized in that: include: A memory, a processor, and a heat dissipation control program for an electric control component in an air conditioner stored in the memory and executable on the processor. When the processor executes the heat dissipation control program, a heat dissipation control method for an electric control component in an air conditioner according to any one of claims 1 to 7 is implemented.

10. An air conditioner, characterized in that: include: A housing, a compressor, a first heat exchanger, a second heat exchanger, an air supply fan and an exhaust fan, wherein the housing has an air supply duct and an exhaust duct isolated from each other, the first heat exchanger is arranged in the air supply duct, the second heat exchanger is arranged in the exhaust duct, the first heat exchanger and the second heat exchanger are both connected to the compressor and serve as a condenser and an evaporator respectively, the inlet of the air supply fan is connected to the air supply duct and the outlet of the air supply fan is connected to the indoor side, the inlet of the exhaust fan is connected to the exhaust duct and the outlet of the exhaust fan is connected to the outdoor side; An electric control component is arranged on the air inlet path of the exhaust fan and is provided with an air inlet. The electric control component includes an electric control box, a circuit board, and a heating device. The electric control box adopts a closed design. The circuit board is stored in the electric control box. The heating device is arranged on the circuit board. An air guide plate is provided corresponding to the air inlet. The circuit board is configured to determine the electrical parameters of the air conditioner when the air conditioner is operating in a cooling mode, and control at least one of the opening of the air guide plate and the rotation speed of the exhaust fan according to the electrical parameters, wherein the electrical parameters are used to characterize the heating conditions in the electric control box.

11. The air conditioner according to claim 10, characterized in that: The heating device includes a capacitive device and an inductive device arranged on the circuit board, and the capacitive device and the inductive device are accommodated in the electric control box.

12. The air conditioner according to claim 11, characterized in that: The electric control box includes an inner shell and an outer shell covering the inner shell, the inner shell having a through discharge hole, the inner end of the discharge hole being connected to the interior of the electric control box, the outer shell covering the outer end of the discharge hole, and a gap connected to the outer end of the discharge hole and a slit connecting the gap to the outside of the electric control box being formed between the outer shell and the inner shell, the flow width of the gap and the slit being smaller than the flow equivalent diameter of the inner end of the discharge hole.

13. The air conditioner according to claim 12, characterized in that: There are multiple discharge holes; and / or, the flow area of ​​the discharge holes gradually decreases along the direction from the inner end to the outer end.

14. The air conditioner according to claim 12, characterized in that: In the air flow direction of the heat dissipation air duct, the exhaust hole is located downstream of the capacitive device.

15. The air conditioner according to claim 11, characterized in that: The electronic control component also includes: An air duct cover is arranged outside the electric control box and is located on a side of the inductive device away from the circuit board. A heat dissipation air duct is formed between the air duct cover and the electric control box. The air duct cover itself or together with the electric control box defines an air inlet of the heat dissipation air duct. The air duct cover itself or together with the electric control box defines an air outlet of the heat dissipation air duct.

16. The air conditioner according to any one of claims 10 to 15, characterized in that: The refrigerant in the compressor includes carbon dioxide.

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