Air conditioner, electric control component, heat dissipation control method of electric control component and storage medium

Abstract

The invention discloses an air conditioner, an electric control component, a heat dissipation control method of the electric control component and a storage medium, the air conditioner further comprises a shell, a compressor, a first heat exchanger, a second heat exchanger, an air supply fan, an air exhaust fan and a water utilization assembly, the electric control component is arranged on an air inlet path of the air exhaust fan, and the water utilization assembly is suitable for applying water in a water receiving tank to a condenser; the method comprises the steps of obtaining outdoor environment temperature; and under the condition that the outdoor environment temperature is higher than the first preset temperature, if it is determined that no water exists in the water receiving tank, the temperature in the electric control component is obtained, and at least one of the rotating speed of the exhaust fan and the frequency of the compressor is controlled according to the temperature in the electric control component. According to the method disclosed by the invention, when the outdoor environment temperature is relatively high, the electric control component can be quickly cooled, the temperature in the electric control component can be timely reduced, and a high-power device in the electric control component is prevented from being damaged due to over-temperature, so that the service life of the electric control component can be guaranteed.

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 electronic 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 electronic control components must be increased accordingly. The increase in electric power and in a closed electronic control environment bring challenges to the thermal design of power heating components. When the outdoor ambient temperature is high, higher requirements are put forward for the heat dissipation of electronic control components. Summary of the invention

[0003] The present invention aims to solve one of the technical problems in the related art to at least a certain extent. To this end, the first purpose of the present invention is to provide a heat dissipation control method for an electric control component in an air conditioner, which can enable the electric control component to dissipate heat quickly when the outdoor ambient temperature is high, timely reduce the temperature inside the electric control component, prevent the high-power device in the electric control component from being damaged due to overheating, and thus ensure the service life of the electric control component.

[0004] A second object of the present invention is to provide a computer-readable storage medium.

[0005] The third object of the present invention is to provide an electronic control component.

[0006] A fourth object of the present invention is to provide an air conditioner.

[0007] To achieve the above-mentioned purpose, the 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 housing, a compressor, a first heat exchanger, a second heat exchanger, an air supply fan, an exhaust fan and a water utilization component, wherein the housing has a water receiving trough, and mutually isolated air supply ducts and exhaust ducts, 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 air supply duct is connected to the exhaust duct. The outlet of the 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, the electronic control component is arranged on the air inlet path of the exhaust fan, and the water utilization component is suitable for applying the water in the water receiving tank to the condenser. The method comprises: obtaining the outdoor ambient temperature; when the outdoor ambient temperature is greater than a first preset temperature, if it is determined that there is no water in the water receiving tank, then obtaining the temperature in the electronic control component, and controlling at least one of the rotation speed of the exhaust fan and the frequency of the compressor according to the temperature in the electronic control component.

[0008] According to the heat dissipation control method of the electric control component in the air conditioner of the embodiment of the present invention, the outdoor environment temperature is first obtained, and when the outdoor environment temperature is greater than the first preset temperature, if it is determined that there is no water in the water receiving tank, the temperature inside the electric control component is obtained, and at least one of the rotation speed of the exhaust fan and the frequency of the compressor is controlled according to the temperature inside the electric control component. Thus, the method can enable the electric control component to dissipate heat quickly, reduce the temperature inside the electric control component in time, prevent the high-power device in the electric control component from being damaged due to overheating, and thus ensure the service life of the electric control component.

[0009] 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:

[0010] According to one embodiment of the present invention, determining that there is no water in the water receiving tank includes: detecting water level information in the water receiving tank; obtaining the electric power of the air conditioner when it is determined that the water level in the water receiving tank is lower than a first preset water level according to the water level information; and determining that there is no water in the water receiving tank if the electric power is greater than or equal to the first preset power.

[0011] According to one embodiment of the present invention, at least one of the rotation speed of the exhaust fan and the frequency of the compressor is controlled according to the temperature in the electronically controlled component, including: determining the temperature range in which the temperature in the electronically controlled component is located; and performing corresponding speed increase control on the rotation speed of the exhaust fan according to the temperature range in which the temperature in the electronically controlled component is located.

[0012] According to one embodiment of the present invention, the speed of the exhaust fan is controlled to increase accordingly according to the temperature range of the temperature in the electronically controlled component, including: when the temperature in the electronically controlled component is lower than the second preset temperature, the speed of the exhaust fan is controlled to increase to a first preset speed; when the temperature in the electronically controlled component is greater than or equal to the second preset temperature, the speed of the exhaust fan is controlled to increase to a second preset speed, wherein the second preset speed is higher than the first preset speed.

[0013] According to one embodiment of the present invention, at least one of the rotation speed of the exhaust fan and the frequency of the compressor is controlled according to the temperature inside the electronic control component, and also includes: when the temperature inside the electronic control component is greater than or equal to a third preset temperature, controlling the compressor to operate at a reduced frequency, wherein the third preset temperature is greater than the second preset temperature.

[0014] According to one embodiment of the present invention, when it is determined that there is water in the water receiving tank, the method further includes: controlling the water utilization component to work, controlling the exhaust fan to operate at a target speed, and controlling the compressor to operate at a target frequency, wherein the target speed is less than a first preset speed.

[0015] According to an embodiment of the present invention, when the outdoor ambient temperature is less than or equal to a first preset temperature, the method further comprises: controlling the air conditioner to operate normally.

[0016] 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.

[0017] According to the computer-readable storage medium of an embodiment of the present invention, through the above-mentioned heat dissipation control method of the electronic control component in the air conditioner, the electronic control component can dissipate heat quickly, reduce the temperature inside the electronic control component in time, and prevent the high-power devices in the electronic control component from being damaged due to overheating, thereby ensuring the service life of the electronic control component.

[0018] To achieve the above-mentioned purpose, 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.

[0019] According to the electronic control component of the embodiment of the present invention, through the above-mentioned heat dissipation control method of the electronic control component in the air conditioner, the electronic control component can quickly dissipate heat, timely reduce the temperature inside the electronic control component, and prevent high-power devices in the electronic control component from being damaged due to overheating, thereby ensuring the service life of the electronic control component.

[0020] To achieve the above-mentioned purpose, a fourth aspect of the present invention proposes an air conditioner, comprising: a housing, a compressor, a first heat exchanger, a second heat exchanger, an air supply fan and an exhaust fan, wherein the housing has a water tank, and 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, and the inlet of the exhaust fan is connected to the indoor side. The outlet of the exhaust fan is connected to the exhaust duct and the outlet of the exhaust fan is connected to the outdoor side; a water utilization component, the water utilization component is suitable for applying the water in the water receiving tank to the condenser; an electronic control component, the electronic control component is arranged on the air inlet path of the exhaust fan, the electronic control component includes a circuit board, and the circuit board is configured to obtain the temperature in the electronic control component when it is determined that there is no water in the water receiving tank when the outdoor ambient temperature is greater than a first preset temperature, and control at least one of the rotation speed of the exhaust fan and the frequency of the compressor according to the temperature in the electronic control component.

[0021] According to the air conditioner of the embodiment of the present invention, the outdoor environment temperature is first obtained through the circuit board of the electric control component, and when the outdoor environment temperature is greater than the first preset temperature, if it is determined that there is no water in the water receiving tank, the temperature inside the electric control component is obtained, and at least one of the rotation speed of the exhaust fan and the frequency of the compressor is controlled according to the temperature inside the electric control component. As a result, the air conditioner can quickly dissipate heat from the electric control component, timely reduce the temperature inside the electric control component, prevent the high-power device in the electric control component from being damaged due to overheating, and thus ensure the service life of the electric control component.

[0022] In addition, the air conditioner according to the above embodiment of the present invention may also have the following additional technical features:

[0023] According to one embodiment of the present invention, the above-mentioned air conditioner also includes: a water level detection component, which is suitable for detecting water level information in the water receiving tank; the circuit board is also configured to obtain the electric power of the air conditioner when it is determined that the water level in the water receiving tank is lower than a first preset water level according to the water level information, and determine that there is no water in the water receiving tank when the electric power is greater than or equal to the first preset power.

[0024] According to one embodiment of the present invention, the electronic control component also includes a box body assembly and a heat sink, the box body assembly having a closed first chamber and a second chamber separated from the first chamber, wherein the capacitive heating device provided on the circuit board is located in the first chamber, the power heating device provided on the circuit board is located in the second chamber, and the heat sink is located in the second chamber and is in contact with the power heating device for heat transfer.

[0025] According to an embodiment of the present invention, the box body assembly has a heat dissipation and ventilation area connecting the second chamber with the outside of the box body assembly.

[0026] According to one embodiment of the present invention, the box body assembly includes an air supply path suitable for absorbing heat from the first chamber and supplying air to the second chamber, and the heat dissipation and ventilation area includes a heat dissipation exhaust port.

[0027] According to an embodiment of the present invention, the air supply fan and the air exhaust fan are both arranged outside the housing and assembled to the housing.

[0028] According to one embodiment of the present invention, the housing of the exhaust fan includes a connecting pipe connected to the electronic control component, and the connecting pipe includes a curved pipe section.

[0029] According to another embodiment of the present invention, the electronic control component further includes an electronic control box and a heating device, the electronic control box is a closed box body, the circuit board is accommodated in the electronic control box, and the heating device includes an inductive device arranged on the circuit board, and the inductive device is accommodated in the electronic control box.

[0030] According to one embodiment of the present invention, the inductive device includes a first inductive device, an end of the first inductive device away from the circuit board is a distal end of the first inductive device, the electrical control box includes an inner shell and an outer shell covering the inner shell, the inner shell is an insulating shell and is formed with a first opening, the first opening is opposite to the distal end of the first inductive device, and the outer shell is a metal shell and blocks and closes the first opening.

[0031] According to one embodiment of the present invention, the inductive device includes a first inductive device, and the electrical control box includes a first box wall, the first box wall is located on a side of the first inductive device away from the circuit board, a portion of the first box wall protrudes in a direction away from the circuit board to form a protrusion, an avoidance cavity is formed on the inner side of the protrusion, and at least a portion of the first inductive device is accommodated in the avoidance cavity.

[0032] According to an embodiment of the present invention, the refrigerant in the compressor includes carbon dioxide.

[0033] 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

[0034] 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;

[0035] Figure 2 is a structural schematic diagram of an air conditioner according to an embodiment of the present invention;

[0036] Figure 3 is a structural schematic diagram of an air conditioner according to another embodiment of the present invention;

[0037] Figure 4 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;

[0038] Figure 5 is a block diagram of an electric control component according to an embodiment of the present invention;

[0039] Figure 6 is a schematic structural diagram of an electric control component according to an embodiment of the present invention;

[0040] Figure 7 is a schematic structural diagram of an electric control component according to an embodiment of the present invention;

[0041] Figure 8 is a schematic structural diagram of an electric control component according to another embodiment of the present invention;

[0042] Fig. 9 FIG. 4 is a schematic diagram of the structure of an electric control component according to an embodiment of the present invention. DETAILED DESCRIPTION

[0043] 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.

[0044] 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.

[0045] In one embodiment of the present invention, Figure 2 and Figure 3As shown, the air conditioner 1000 includes a housing 200, a compressor 300, a first heat exchanger 400, a second heat exchanger 500, a supply fan 600, an exhaust fan 700, and an electric control component 100. For example, the electric control component 100 can be used to control the actions of the compressor 300, the supply fan 600, and the exhaust fan 700. The first heat exchanger 400 and the second heat exchanger 500 exchange heat with the air flow passing therethrough, and the supply fan 600 and the exhaust fan 700 provide a flowing air flow.

[0046] The housing 200 has a mutually isolated air supply duct 200a and an exhaust duct 200b, the first heat exchanger 400 is arranged in the air supply duct 200a, the second heat exchanger 500 is arranged in the exhaust duct 200b, the first heat exchanger 400 and the second heat exchanger 500 are connected to the compressor 300 and serve as a condenser and an evaporator respectively. The inlet of the air supply fan 600 is connected to the air supply duct 200a 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 200b and the outlet of the exhaust fan 700 is connected to the outdoor side, and the electric control component 100 is arranged on the air inlet path of the exhaust fan 700.

[0047] 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 200a, 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 200b. 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 200a, 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 200b. Alternatively, the air conditioner 1000 may have only one of the above two functions.

[0048] The electric control component 100 is arranged on the air inlet path of the exhaust fan 700. While the exhaust fan 700 provides a flowing airflow to the second heat exchanger 500, the exhaust fan 700 also causes an airflow to flow through the electric control component 100 to dissipate heat for the electric control component 100. At least part of the flowing airflow provided by the exhaust fan 700 flows into the second chamber 1b from the heat dissipation air inlet 42, thereby improving the heat dissipation efficiency of the circuit assembly 2.

[0049] By arranging the electric control component 100 on the air inlet path of the exhaust fan 700, there is no need to arrange an additional exhaust fan, thus 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. Also, 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.

[0050] The housing 200 has a water receiving groove inside. Some parts in the air conditioner 1000 have a low temperature. When the moisture in the air contacts these parts, it will liquefy into water droplets, adhere to the surface of these parts, and flow down along the surface. By providing a water receiving groove, the dripping water droplets can be collected to avoid polluting the inside of the air conditioner 1000 or wetting the ground.

[0051] The water receiving tank collects the condensed water and can be reused. The condenser of the air conditioner 1000 has a high temperature during operation. Applying the condensed water to the condenser can assist the condenser in dissipating heat. The air conditioner 1000 also includes a water level detection component and a water utilization component. The water level detection component is used to detect the water level in the water receiving tank. When the water level detection component detects that the water level in the water receiving tank reaches a preset value, the water utilization component applies the water in the water receiving tank to the condenser. For example, the water utilization component may include a water spray box, a water spray nozzle, or a water wheel. The water level detection component may include a high water level sensor and a low water level sensor.

[0052] 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.

[0053] 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:

[0054] S1, obtain the outdoor ambient temperature.

[0055] The outdoor ambient temperature can be obtained through a temperature sensor installed outdoors, or it can be obtained through an online weather platform.

[0056] S2, when the outdoor ambient temperature is greater than the first preset temperature, if it is determined that there is no water in the water tank, the temperature in the electronic control component is obtained, and at least one of the rotation speed of the exhaust fan and the frequency of the compressor is controlled according to the temperature in the electronic control component. The first preset temperature can be calibrated according to actual conditions, for example, the first preset temperature can be 43°C.

[0057] Specifically, the electronic control components include bridge stacks, FRDs, IGBTs (Insulated Gate Bipolar Transistors), compressor IPMs, air intake fan IPMs, exhaust fan IPMs, PFC inductors, high-voltage large capacitors and other high-power heating devices, which are arranged in the box of the electronic control components. In order to avoid oil fume pollution, the box of the electronic control components needs to be sealed. A temperature sensor is provided in the box of the electronic control component to detect the temperature inside the electronic control component. During the cooling process of the air conditioner, condensed water will be generated, which will accumulate in the water tank and will be pumped onto the condenser by the water utilization component. The high temperature on the condenser will be used to evaporate the condensed water. The evaporation of the condensed water will take away part of the heat, and the energy efficiency of the air conditioner will be improved. Under the premise of producing the same cooling capacity, the electric power will be reduced by 200W.

[0058] When the outdoor ambient temperature is greater than 43°C (the first preset temperature), the air conditioner must ensure a cooling capacity of 3000W, and the electric power must reach 1800W. The increase in the heat generated by the high-power device will cause the temperature inside the electronic control component to rise, so it is more necessary to dissipate heat in a timely manner. If there is no water in the water tank, the controller of the electronic control component (such as MCU, single-chip microcomputer, etc.) can use the temperature sensor to measure the temperature inside the electronic control component, and when the temperature inside the electronic control component reaches a certain higher value, control the exhaust fan to increase the speed, increase the air volume flowing through the surface of the electronic control component to take away the heat; or control to reduce the frequency of the compressor to reduce the heat generated by the power device. Of course, when the temperature inside the electronic control component is too high, the exhaust fan can be controlled to increase the speed while controlling to reduce the frequency of the compressor, so that the electronic control component can quickly dissipate heat, timely reduce the temperature inside the electronic control component, and prevent the high-power device in the electronic control component from being damaged due to overheating, thereby ensuring the service life of the electronic control component.

[0059] In one embodiment of the present invention, when the outdoor ambient temperature is equal to 43°C (the first preset temperature), the temperature rise and heating conditions of each high-power heating device in the electronic control component and the temperature inside the electronic control component under different working conditions are as shown in Table 1.

[0060] Table 1

[0061]

[0062]

[0063] According to an embodiment of the present invention, determining that there is no water in the water receiving tank includes: detecting water level information in the water receiving tank; obtaining the electric power of the air conditioner when the water level in the water receiving tank is determined to be lower than a first preset water level according to the water level information; and determining that there is no water in the water receiving tank if the electric power is greater than or equal to the first preset power. The first preset water level can be calibrated according to actual conditions, and the first preset power can be calibrated according to actual conditions, for example, the first preset power can be 1800W.

[0064] Specifically, a water level detection component is installed in the water receiving tank, and the water level information in the water receiving tank can be detected by the water level detection component, wherein the water level detection component can be a water level sensor. When the water level in the water receiving tank is higher than the first preset water level, the water level sensor is closed, indicating that there is water in the water receiving tank. When the water level in the water receiving tank is lower than the first preset water level and the water level sensor is disconnected, the water level sensor is disconnected, and it is impossible to determine whether there is water in the water receiving tank. It is necessary to determine whether there is water in the water receiving tank by the electric power of the air conditioner. When the outdoor ambient temperature is greater than 43°C (the first preset temperature), when the electric power of the air conditioner is greater than or equal to 1800W (the first preset power), it can be determined that there is no water in the water receiving tank; when the electric power of the air conditioner is less than 1800W (the first preset power), it can be determined that there is water in the water receiving tank.

[0065] According to one embodiment of the present invention, at least one of the rotation speed of the exhaust fan and the frequency of the compressor is controlled according to the temperature in the electronically controlled component, including: determining the temperature range in which the temperature in the electronically controlled component is located; and performing corresponding speed increase control on the rotation speed of the exhaust fan according to the temperature range in which the temperature in the electronically controlled component is located.

[0066] Specifically, the higher the temperature in the electronic control component, the faster the heat dissipation of the electronic control component is required, and the corresponding exhaust fan speed is higher. Therefore, different temperature intervals can be divided according to the temperature in the electronic control component, and the corresponding exhaust fan speed can be set for each temperature interval. When the temperature interval in which the temperature in the electronic control component is located is determined, the exhaust fan speed is also determined accordingly, so the exhaust fan can be controlled to increase the speed accordingly according to the determined exhaust fan speed.

[0067] According to one embodiment of the present invention, the speed of the exhaust fan is controlled to increase accordingly according to the temperature range of the temperature in the electric control component, including: when the temperature in the electric control component is less than the second preset temperature, the speed of the exhaust fan is controlled to increase to the first preset speed; when the temperature in the electric control component is greater than or equal to the second preset temperature, the speed of the exhaust fan is controlled to increase to the second preset speed, wherein the second preset speed is greater than the first preset speed. The second preset temperature can be calibrated according to actual conditions, for example, the second preset temperature can be 62°C; the first preset speed and the second preset speed can be calibrated according to actual conditions, for example, the first preset speed can be 1400rpm and the second preset speed can be 1600rpm.

[0068] Specifically, when the external ambient temperature is greater than the first preset temperature and the electric power is greater than the first preset power, when the temperature inside the electronic control component is less than the second preset temperature, the speed of the exhaust fan can be controlled to increase to the first preset speed to increase the air volume flowing through the surface of the electronic control component to quickly take away the heat; when the temperature inside the electronic control component is greater than or equal to the second preset temperature, it means that the electronic control component needs to further accelerate the heat dissipation, and the speed of the exhaust fan can be controlled to increase to the second preset speed to further increase the air volume flowing through the surface of the electronic control component to quickly take away the heat and accelerate the heat dissipation.

[0069] According to an embodiment of the present invention, at least one of the rotation speed of the exhaust fan and the frequency of the compressor is controlled according to the temperature in the electronic control component, and further includes: when the temperature in the electronic control component is greater than or equal to a third preset temperature, controlling the compressor to operate at a reduced frequency, wherein the third preset temperature is greater than the second preset temperature. For example, the third preset temperature may be 65°C.

[0070] Specifically, when the external environment temperature is greater than the first preset temperature and the electric power is greater than the first preset power, when the temperature inside the electric control component is greater than or equal to the third preset temperature, it means that the temperature inside the electric control component is too high. It is not possible to quickly dissipate heat and cool down the electric control component by simply increasing the speed of the exhaust fan to the second preset speed. It is also necessary to reduce the heat generated by the heating components in the electric control component, so it is necessary to control the compressor to reduce the frequency. For example, the speed of the exhaust fan can be controlled to maintain the second preset speed, and the frequency of the compressor can be controlled to be reduced from 55Hz to 52Hz, so that the electric control component can quickly dissipate heat, reduce the temperature inside the electric control component in time, and prevent the high-power components in the electric control component from being damaged due to overheating, thereby ensuring the service life of the electric control component.

[0071] According to one embodiment of the present invention, when it is determined that there is water in the water receiving tank, the method further includes: controlling the water utilization component to work, controlling the exhaust fan to operate at a target speed, and controlling the compressor to operate at a target frequency, wherein the target speed is less than the first preset speed. The target speed may be 1200 rpm, and the target frequency may be calibrated according to actual conditions, for example, the target frequency may be 55 Hz.

[0072] Specifically, when the external ambient temperature is greater than the first preset temperature, when the water level sensor is energized, it can be determined that there is condensed water in the water tank, and the controller of the electronic control component can control the water utilization component to pump the condensed water onto the condenser, and use the high temperature on the condenser to evaporate the condensed water. The evaporation of the condensed water takes away part of the heat, and the exhaust fan is controlled to run at a target speed to take away the heat on the surface of the electronic control component, and then the compressor is controlled to run at a target frequency for cooling.

[0073] According to an embodiment of the present invention, when the outdoor ambient temperature is less than or equal to the first preset temperature, the method further comprises: controlling the air conditioner to operate normally.

[0074] That is to say, when the outdoor ambient temperature is less than or equal to the first preset temperature, the heat generated by the electronically controlled components can be basically taken away by the air volume of the exhaust fan, and at this time the air conditioner can be controlled to operate according to normal working parameters.

[0075] As a specific example, Figure 4 As shown, the heat dissipation control method of the electric control component in the air conditioner may include the following steps:

[0076] Step S101, controlling the air conditioner to operate normally.

[0077] Step S102, obtaining the outdoor ambient temperature.

[0078] Step S103, determining whether the outdoor environment temperature is greater than a first preset temperature. If yes, executing step S104; if no, returning to step S101.

[0079] Step S104, determining whether the water level in the water receiving tank is lower than a first preset water level. If yes, executing step S105; if no, executing step S112.

[0080] Step S105, obtaining the electric power of the air conditioner.

[0081] Step S106, determining whether the electric power is greater than or equal to the first preset power. If yes, executing step S107; if no, executing step S112.

[0082] Step S107, determining whether the temperature in the electric control component is less than a second preset temperature. If yes, executing step S108; if no, executing step S109.

[0083] Step S108, controlling the speed of the exhaust fan to increase to a first preset speed.

[0084] Step S109, controlling the exhaust fan to increase its speed to a second preset speed.

[0085] Step S110, determining whether the temperature in the electric control component is greater than or equal to a third preset temperature. If yes, executing step S111; if no, returning to step S109.

[0086] Step S111, controlling the compressor to operate at a reduced frequency.

[0087] Step S112, controlling the water utilization component to work, controlling the exhaust fan to operate at a target speed, and controlling the compressor to operate at a target frequency.

[0088] In summary, according to the heat dissipation control method of the electric control component in the air conditioner according to the embodiment of the present invention, the outdoor ambient temperature is first obtained, and when the outdoor ambient temperature is greater than the first preset temperature, if it is determined that there is no water in the water tank, the temperature inside the electric control component is obtained, and at least one of the rotation speed of the exhaust fan and the frequency of the compressor is controlled according to the temperature inside the electric control component. As a result, the method can enable the electric control component to dissipate heat quickly, reduce the temperature inside the electric control component in time, prevent the high-power devices in the electric control component from being damaged due to overheating, and thus ensure the service life of the electric control component.

[0089] Corresponding to the above embodiment, the present invention also proposes a computer-readable storage medium.

[0090] 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.

[0091] According to the computer-readable storage medium of an embodiment of the present invention, through the above-mentioned heat dissipation control method of the electronic control component in the air conditioner, the electronic control component can dissipate heat quickly, reduce the temperature inside the electronic control component in time, and prevent the high-power devices in the electronic control component from being damaged due to overheating, thereby ensuring the service life of the electronic control component.

[0092] Corresponding to the above embodiment, the present invention also proposes an electric control component.

[0093] Figure 5 FIG. 4 is a block diagram of an electric control component according to an embodiment of the present invention.

[0094] like Figure 5 As shown, the electric control component 100 of the embodiment of the present invention includes: a memory 110, a processor 120, and a heat dissipation control program for the electric control component in the air conditioner stored in the memory 110 and executable on the processor 120. When the processor 120 executes the heat dissipation control program, the above-mentioned heat dissipation control method for the electric control component in the air conditioner is implemented.

[0095] According to the electronic control component of the embodiment of the present invention, through the above-mentioned heat dissipation control method of the electronic control component in the air conditioner, the electronic control component can quickly dissipate heat, timely reduce the temperature inside the electronic control component, and prevent high-power devices in the electronic control component from being damaged due to overheating, thereby ensuring the service life of the electronic control component.

[0096] Corresponding to the above embodiment, the present invention also proposes an air conditioner.

[0097] Figure 2 Schematic diagram of the structure of an air conditioner according to an embodiment of the present invention.

[0098] like Figure 2 and Figure 3 As shown, the air conditioner 1000 of the embodiment of the present invention includes a housing 200, a compressor 300, a first heat exchanger 400, a second heat exchanger 500, an air supply fan 600, an exhaust fan 700 and an electric control component 100. For example, the electric control component 100 can be used to control the actions of the compressor 300, the air supply fan 600 and the exhaust fan 700. The first heat exchanger 400 and the second heat exchanger 500 exchange heat with the air flow passing through, and the air supply fan 600 and the exhaust fan 700 provide a flowing air flow.

[0099] The housing 200 has a mutually isolated air supply duct 200a and an exhaust duct 200b, the first heat exchanger 400 is arranged in the air supply duct 200a, the second heat exchanger 500 is arranged in the exhaust duct 200b, the first heat exchanger 400 and the second heat exchanger 500 are connected to the compressor 300 and serve as a condenser and an evaporator respectively. The inlet of the air supply fan 600 is connected to the air supply duct 200a 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 200b and the outlet of the exhaust fan 700 is connected to the outdoor side, and the electric control component 100 is arranged on the air inlet path of the exhaust fan 700.

[0100] 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 200a, 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 200b. 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 200a, 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 200b. Alternatively, the air conditioner 1000 may have only one of the above two functions.

[0101] The electric control component 100 is arranged on the air inlet path of the exhaust fan 700. While the exhaust fan 700 provides a flowing airflow to the second heat exchanger 500, the exhaust fan 700 also causes an airflow to flow through the electric control component 100 to dissipate heat for the electric control component 100. At least part of the flowing airflow provided by the exhaust fan 700 flows into the second chamber 1b from the heat dissipation air inlet 42, thereby improving the heat dissipation efficiency of the circuit assembly 2.

[0102] By arranging the electric control component 100 on the air inlet path of the exhaust fan 700, there is no need to arrange an additional exhaust fan, thus 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. Also, 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.

[0103] The housing 200 has a water receiving groove inside. Some parts in the air conditioner 1000 have a low temperature. When the moisture in the air contacts these parts, it will liquefy into water droplets, adhere to the surface of these parts, and flow down along the surface. By providing a water receiving groove, the dripping water droplets can be collected to avoid polluting the inside of the air conditioner 1000 or wetting the ground.

[0104] Furthermore, the electronic control component 100 includes a circuit board 21, which is configured to obtain the temperature inside the electronic control component and control at least one of the speed of the exhaust fan and the frequency of the compressor according to the temperature inside the electronic control component when it is determined that there is no water in the water tank when the outdoor ambient temperature is greater than a first preset temperature.

[0105] According to one embodiment of the present invention, the above-mentioned air conditioner 1000 also includes: a water level detection component, which is suitable for detecting water level information in the water receiving tank; the circuit board 21 is also configured to obtain the electric power of the air conditioner 1000 when it is determined that the water level in the water receiving tank is lower than a first preset water level according to the water level information, and determine that there is no water in the water receiving tank when the electric power is greater than or equal to the first preset power.

[0106] Specifically, the water receiving tank can be reused after collecting the condensed water. The temperature of the condenser of the air conditioner 1000 is high during operation. Applying the condensed water to the condenser can assist the condenser in dissipating heat. The air conditioner 1000 also includes a water level detection component and a water utilization component. The water level detection component is used to detect the water level in the water receiving tank. When the water level detection component detects that the water level in the water receiving tank reaches a first preset water level, the water utilization component applies the water in the water receiving tank to the condenser. For example, the water utilization component may include a water spray box, a water spray nozzle, or a water wheel. The water level detection component may be a water level sensor. When the water level in the water receiving tank is lower than the first preset water level and the water level sensor is disconnected, the water level sensor is disconnected, and it is impossible to determine that there is no water in the water receiving tank. It is necessary to determine that there is no water in the water receiving tank by the electric power of the air conditioner. When the outdoor ambient temperature is greater than the first preset temperature and the electric power of the air conditioner 1000 is greater than or equal to the first preset power, it can be determined that there is no water in the water receiving tank.

[0107] According to one embodiment of the present invention, Figure 6 As shown, the electronic control component 100 also includes a box body assembly 1, a circuit assembly 2 and a heat sink 3. The box body assembly 1 has a closed first chamber 1a and a second chamber 1b separated from the first chamber 1a. The circuit assembly 2 includes a circuit board 21. The capacitive heating device 22 provided on the circuit board 21 is located in the first chamber. The power heating device 23 provided on the circuit board 21 is located in the second chamber. The heat sink 3 is located in the second chamber 1b and contacts the power heating device 23 for heat transfer.

[0108] It is worth noting that the application scenarios and functions of the electric control component 100 of the present invention are not limited. For example, the electric control component 100 can be used in an air conditioner to control the operation of components such as a compressor, a solenoid valve, and a fan of the air conditioner.

[0109] For example, when the working environment in which the electric control component 100 is used contains pollutants such as oil, dust, etc. In the embodiment of the present application, by providing a closed first chamber 1a in the box assembly 1, and providing the capacitive sensing heating device 22 in the closed first chamber 1a, it is possible to reduce the pollutants such as oil smoke, dust, etc. from contacting the capacitive sensing heating device 22 and causing adverse effects on the capacitive sensing heating device 22, thereby improving the working reliability of the capacitive sensing heating device 22, improving the working stability of the electric control component 100, and extending the service life of the electric control component 100.

[0110] However, considering that the heat dissipation efficiency of a completely closed environment is low, which will aggravate the heat accumulation in the internal environment of the first chamber 1a, in some embodiments of the present application, air flow holes can be set on the surface constituting the first chamber 1a to present a generally closed form. While reducing the probability of pollutants such as oil smoke and dust entering the first chamber 1a, it also takes into account the ventilation and heat dissipation of the first chamber 1a.

[0111] The first chamber 1a and the second chamber 1b are separated, and the first chamber 1a and the second chamber 1b are separated in space, rather than the first chamber 1a and the second chamber 1b being two parts of one space. The first chamber 1a and the second chamber 1b are separated, but the two can be, but are not limited to, completely isolated, that is, in some embodiments, there is no airflow communication channel between the first chamber 1a and the second chamber 1b, while in other embodiments, the first chamber 1a and the second chamber 1b can achieve airflow communication through the communication hole 104 or the like.

[0112] The circuit component 2 generates heat when working. The present application sets the first chamber 1a as a closed structure, sets the capacitive-inductive heating device 22 in the first chamber 1a, and sets the power heating device 23 in the second chamber 1b. The capacitive-inductive heating device 22 and the power heating device 23 are placed in two chambers, so that the heat emitted by the two are not easy to affect each other, thereby improving the working reliability of the circuit component 2.

[0113] The present invention is also provided with a heat sink 3, which is also arranged in the second chamber 1b and cooperates with the power heating device 23 to transfer heat, thereby improving the heat dissipation efficiency of the power heating device 23. It is worth noting that the type of the heat sink 3 is not limited, for example, the heat sink 3 can be in the form of a fin heat exchanger, or include a heat pipe, or include a refrigerant pipe, etc., so as to facilitate the rapid heat dissipation of the power heating device 23. In addition, the heat sink 3 and the power heating device 23 cooperate in heat transfer. For example, direct or indirect contact heat transfer can be used, and for example, gap-coordinated heat radiation heat transfer can also be used, etc., which is not limited here.

[0114] In some embodiments of the present invention, the capacitive-inductive-heating device 22 includes an inductive device 221 and / or a capacitive device 222 .

[0115] The height of the power device is lower than that of the inductive device 221 and / or the capacitive device 222. Therefore, the power device and the heat sink 3 are both arranged in the second chamber 1b, which can make full use of the space and avoid the height of the second chamber 1b being too large. The inductive device 221 and / or the capacitive device 222 are higher and have greater heat dissipation than the power device. Therefore, the inductive device 221 and / or the capacitive device 222 are arranged in the first chamber 1a, so that the height of the first chamber 1a and the second chamber 1b is more balanced, and the thermal impact of the heat dissipated by the first heating device 22 on the power device in the second chamber 1b can be reduced.

[0116] Exemplarily, the capacitive-inductive heating device 22 includes at least one first inductive device, such as an inductive device with higher heat generation among the inductive devices can be the first inductive device. For example, in some examples, the first inductive device can be connected to a strong current, such as a PFC (Power Factor Correction) inductor or a common mode inductor, etc., which generates higher heat. Moreover, the height of the first inductive device is relatively high, and the far end of the first inductive device (i.e., the end away from the circuit board 21) is usually the position where the first inductive device is closest to the box body assembly 1. In some examples, the distance between the far end of the first inductive device and the box body assembly 1 can be limited to 5mm-10mm. While improving the heat radiation heat dissipation efficiency, it can also meet safety regulations and improve safety.

[0117] Exemplarily, the capacitive-inductive-heat generating device 22 includes at least one first capacitive device, which is a number of capacitive devices with relatively large heat generation among all capacitive devices. For example, the first capacitive device is a high-voltage electrolytic capacitor with relatively large heat generation, and the heat generation is relatively high. Moreover, the height of the first capacitive device is relatively high. The far end of the first capacitive device (i.e., the end away from the circuit board 21) is usually the position where the first capacitive device is closest to the box body assembly 1. In some examples, the distance between the far end of the first capacitive device and the box body assembly 1 can be limited to 5mm-10mm. While improving the heat dissipation efficiency of thermal radiation, it can also meet safety regulations and improve safety.

[0118] Exemplarily, the power heating device 23 includes at least one power device with relatively high heat generation, such as a compressor IPM, a fan IPM, an IGBT, a bridge stack and other components with relatively small size and relatively short height.

[0119] According to one embodiment of the present invention, Figure 7As shown, the box body assembly 1 has a heat dissipation and ventilation area 4 connecting the second chamber 1b with the outside of the box body assembly 1. By providing the heat dissipation and ventilation area 4, the external air of the box body assembly 1 can circulate with the inside of the second chamber 1b through the heat dissipation and ventilation area 4, so that the second chamber 1b can be ventilated with the outside of the box body assembly 1 through the heat dissipation and ventilation area 4, and the external air of the box body assembly 1 contacts and exchanges heat with the power heating device 23 and the heat sink 3 in the second chamber 1b, thereby improving the heat dissipation efficiency of the power heating device 23.

[0120] In some embodiments, the heat dissipation and ventilation area 4 includes a heat dissipation and exhaust port 41. It is worth noting that the shape of the heat dissipation and exhaust port 41 is not limited, for example, it can be an open shape, or it can be composed of a plurality of small holes. For example, at least one of the surfaces constituting the second chamber 1b can be completely open, and the open surface constitutes the heat dissipation and ventilation area 4 in the form of an opening. Optionally, at least one of the surfaces constituting the second chamber 1b is provided with a heat dissipation and exhaust port 41 composed of a plurality of small holes.

[0121] In some embodiments of the present invention, Figure 2 and Figure 3 As shown, the box body assembly 1 includes an air supply path S suitable for absorbing heat from the first chamber 1a and supplying air to the second chamber 1b, and the second chamber 1b is connected to the outside of the box body assembly 1. Therefore, by setting the air supply path S, the air flow exchanges heat with the first chamber 1a and then flows to the second chamber 1b, and then can flow out of the box body assembly 1 through the heat dissipation exhaust port 41, which can improve the heat dissipation efficiency of the capacitive heating device 22 in the first chamber 1a.

[0122] According to one embodiment of the present invention, Figure 6 As shown, the air supply path S includes a first path S1, and the first path S1 includes an air inlet 101 and a heat dissipation duct 10 arranged in sequence along the air flow direction. The air inlet 101 connects the heat dissipation duct 10 with the outside of the box body assembly 1. The heat dissipation duct 10 is located outside the first chamber 1a and covers at least part of the cavity wall of the first chamber 1a to cooperate with the first chamber 1a in heat transfer. The outlet 102 of the heat dissipation duct 10 is connected to the second chamber 1b.

[0123] According to another embodiment of the present invention, Figure 7 As shown, the air supply path S includes a second path S2, and the second path S2 includes an air inlet hole 103, an internal space of the first chamber 1a, and a connecting hole 104 arranged in sequence along the air flow direction. The air inlet hole 103 connects the first chamber 1a with the outside of the box body assembly 1, and the connecting hole 104 connects the first chamber 1a with the second chamber 1b.

[0124] In the above embodiment, the surface constituting the first chamber 1a is provided with an air inlet 103. Figure 7As shown, the arrow direction is the airflow direction. The airflow outside the box assembly 1 flows into the first chamber 1a through the air inlet 103, and exchanges heat with the capacitive heating device 22 in the first chamber 1a to achieve heat dissipation and cooling of the first heating device 22. The airflow after heat exchange flows into the second chamber 1b through the connecting hole 104, and finally flows out of the box assembly 1 from the heat dissipation exhaust port 41 connected to the second chamber 1b.

[0125] In some embodiments of the present invention, Figure 6 and Figure 7 As shown, the heat dissipation outlet 41 is located at one end of the second chamber 1b in the length direction, and the heat dissipation air inlet 42 includes an air inlet opening 421, and the air inlet opening 421 is located at the other end of the second chamber 1b in the length direction. The airflow outside the box assembly 1 flows into the second chamber 1b from the air inlet opening 421, flows along the length direction of the second chamber 1b, and fully contacts the second heating device 23 and the heat sink 3 in the second chamber 1b, thereby improving the heat dissipation efficiency of the second heating device 23 and the heat sink 3.

[0126] In some embodiments, a protective net is provided at the air inlet opening 421, and the protective net can shield the heat sink 3 in the second chamber 1b to prevent the user from contacting the heat sink 3 with high voltage, thereby providing safety in use.

[0127] In some embodiments of the present invention, Figure 6 and Figure 7 As shown, the box assembly 1 includes an electric control box 11 and an air duct cover 12, a first chamber 1a is formed in the electric control box 11, the air duct cover 12 is arranged outside the electric control box 11 at intervals, and the heat dissipation duct 10 and the second chamber 1b are both formed between the electric control box 11 and the air duct cover 12. The electric control box 11 is constructed as the cavity wall of the first cavity 1a, and the heat dissipation duct 10 is directly formed between the air duct cover 12 and the electric control box 11. When the airflow flows in the heat dissipation duct 10, it can directly exchange heat with the cavity wall of the first cavity 1a, thereby improving the heat exchange efficiency. Moreover, the structure of the box assembly 1 is simple and easy to process. Optionally, the air duct cover 12 itself defines the air inlet 101; also optionally, the air duct cover 12 and the electric control box 11 jointly define the air inlet 101. Thus, flexible design and processing can be achieved.

[0128] According to one embodiment of the present invention, Figure 2 As shown, the air supply fan 600 and the exhaust fan 700 are both arranged outside the housing 200 and assembled to the housing 200. Alternatively, in other embodiments, such as Figure 3As shown, the exhaust fan 700 and the air supply fan 600 are both arranged in the housing 200, the air supply fan 600 is arranged in the air supply duct 200a, and the exhaust fan 700 is arranged in the exhaust duct 200b, and the air supply duct 200a and the exhaust duct 200b are isolated from each other by the partition 201. Therefore, the exhaust fan 700 can be flexibly arranged under the premise of meeting the ventilation requirements.

[0129] According to one embodiment of the present invention, Figure 2 As shown, the housing of the exhaust fan 700 includes a connecting pipe 800 connected to the electric control component 100, and the connecting pipe 800 includes a curved pipe section 801. The airflow passing through the electric control component 100 flows to the exhaust fan 700 through the connecting pipe 800. By providing the curved pipe section 801, the wind resistance of the airflow flowing in the circulation pipe can be reduced, the airflow velocity can be increased, and the heat dissipation of the electric control component 100 is beneficial.

[0130] Exemplarily, the center line of the curved pipe section 801 is arc-shaped, and the length of the curved pipe section 801 is 48mm-60mm, the diameter is 38mm-50mm, and the center angle of the center line of the curved pipe section 801 is 75°-160°. For example, the center angle of the center line of the curved pipe section 801 is 90°, which can save manufacturing materials, and the curved pipe section 801 with a center angle of 90° has a shorter path, a smaller internal wind resistance, and is conducive to airflow.

[0131] In some other embodiments of the present invention, the electric control component 100 has another structure. Figure 8 and Fig. 9 Provide detailed explanation.

[0132] According to another embodiment of the present invention, Figure 8 As shown, the electric control component also includes an electric control box 11 and a heating device 3a. The electric control box 11 is a closed box body. The circuit board 21 is accommodated in the electric control box 11. The heating device 3a includes an inductive device 31 arranged on the circuit board 21, and the inductive device 31 is accommodated in the electric control box 11.

[0133] It is worth noting that the application scenario of the electronic control component 100 of the present invention is not limited. For example, the electronic control component 100 can be used to control the actions of components such as compressors, solenoid valves, and fans.

[0134] For example, when the working environment of the electric control component 100 is relatively complex, such as when there are pollutants such as oil and dust in the air of the working environment. In the embodiment of the present invention, by setting the electric control box 11 as a closed box body, pollutants such as oil and dust can be prevented from entering the electric control box 11, and the circuit board 21 and the inductive device 31 are stored inside the electric control box 11, which can prevent oil from contacting the inductive device 31 and causing adverse effects on the inductive device 31, thereby improving the working reliability of the inductive device 31 and the working stability of the electric control component 100, thereby extending the service life of the electric control component 100.

[0135] It is also worth noting that the "closed" mentioned in the present invention should be understood in a broad sense. The electric control box 11 does not have an air flow channel (such as a heat dissipation hole) for heat dissipation, which can be understood as a closed state.

[0136] According to the electric control component 100 of the embodiment of the present invention, by setting the electric control box 11 as a closed box body, it is possible to prevent pollutants such as oil and dust from entering the electric control box 11, and by storing the circuit board 21 and the inductive device 31 inside the electric control box 11, it is possible to prevent oil from contacting the inductive device 31 and causing adverse effects on the inductive device 31, thereby improving the working reliability of the inductive device 31 and improving the working stability of the electric control component 100, thereby extending the service life of the electric control component 100.

[0137] It is worth noting that the electric control component 100 of the present invention sets the electric control box 11 as a closed box body, and the circuit board 21 and the inductive device 31 are both set in the electric control box 11. When the electric control component 100 is working, the inductive device 31 will generate heat. Since the electric control box 11 of the embodiment of the present invention is not provided with a through hole for heat dissipation, some embodiments of the present invention also perform heat dissipation design on the electric control component 100 to improve the heat dissipation capacity of the electric control component 100, and further improve the working reliability of the electric control component 100.

[0138] In some embodiments of the present invention, Figure 8 As shown, the inductive device 31 includes a first inductive device 310, and the end of the first inductive device 310 away from the circuit board 21 is the distal end of the first inductive device 310. The distance L1 between the distal end of the first inductive device 310 and the electric control box 11 is 5mm-10mm, for example, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, etc. In general, the distal end of the first inductive device 310 is the position of the first inductive device 310 closest to the electric control box 11. When the distance between the distal end of the first inductive device 310 and the electric control box 11 is too large, the heat radiation heat dissipation efficiency of the first inductive device 310 to the electric control box 11 is low, and the heat dissipation capacity of the first inductive device 310 is insufficient; and when the distance between the distal end of the first inductive device 310 and the electric control box 11 is too small, the electrical safety distance is not met.

[0139] According to one embodiment of the present invention, Figure 8 As shown, the inductive device 31 includes a first inductive device 310, and the end of the first inductive device 310 away from the circuit board 21 is the distal end of the first inductive device 310. The electric control box 11 includes an inner shell 11a and an outer shell 12 covering the inner shell 11a. The inner shell 11a is an insulating shell and is formed with a first opening 111. The first opening 111 is opposite to the distal end of the first inductive device 310. The outer shell 12 is a metal shell and blocks and closes the first opening 111.

[0140] Therefore, in this embodiment, the electric control box 11 is set to at least a double-layer structure, and the metal shell can ensure the structural reliability and fire resistance of the electric control box 11. The insulating shell can be used to play the role of insulation, etc., to improve the safety of the electric control component 100. Optionally, the inner shell 11a can be a plastic part, which not only has an insulating effect but also has a flame retardant effect, which is conducive to improving the flame retardant and fire resistance of the electric control box 11. By setting the electric control box 11 to a double-layer structure, with the inner shell 11a being a plastic shell and the outer shell 12 being a metal shell, the manufacturing cost of the inner shell 11a is low, and on the basis of improving the working reliability of the electric control box 11, the manufacturing cost of the electric control box 11 can also be reduced.

[0141] Generally, the distal end of the first inductive device 310 is the position of the first inductive device 310 closest to the electric control box 11. It can be understood that the outer shell 12 of the present invention is a metal shell with strong thermal conductivity, the inner shell 11a is an insulating shell with weaker thermal conductivity than the outer shell 12, and the outer shell 12 is located outside the inner shell 11a, and the outer shell 12 can directly contact the external space. Therefore, by providing the first opening 111 at the position where the inner shell 11a is opposite to the distal end of the first inductive device 310, the first inductive device 310 directly radiates heat to the outer shell 12 through the first opening 111, which is conducive to the heat radiation heat dissipation of the first inductive device 310 to the electric control box 11, and improves the heat radiation heat dissipation efficiency of the first inductive device 310.

[0142] The inductive device 31 may be one or more inductive devices 31, at least one of which is a first inductive device 310, and a first opening 111 is provided at the inner shell 11a opposite to the distal end of the first inductive device 310, and openings may or may not be provided at the inner shell 11a opposite to other inductive devices 31. For example, in some examples, the first inductive device 310 may be connected to a strong current, such as a PFC inductor (where PFC is the abbreviation of Power Factor Correction) or a common mode inductor, etc. The first inductive device 310 generates high heat, while the other inductive devices 31 generate relatively low heat, so the embodiment of the present application gives priority to designing the heat dissipation of the first inductive device 310. By providing the first opening 111 at the inner shell 11a opposite to the distal end of the first inductive device 310, the heat radiation heat dissipation efficiency of the first inductive device 310 and the metal shell is high, which is conducive to the heat radiation heat dissipation of the first inductive device 310 to the electric control box 11.

[0143] When there are multiple first inductive devices 310, optionally, at least two first inductive devices 310 correspond to the same first opening 111, that is, a first opening 111 is provided on the inner shell 11a, and the range of the first opening 111 is relatively large, which can be opposite to the far ends of at least two first inductive devices 310; or, also optionally, each first inductive device 310 corresponds to a different first opening 111, and the first inductive devices 310 correspond to the first openings 111 one by one.

[0144] In some specific embodiments of the present invention, the outer shell 12 is a metal shell, and the inner shell 11a is a plastic shell. The metal shell can ensure the structural reliability and fire resistance of the electric control box 11, and the insulating shell can be used to play the role of insulation, etc. The plastic shell has not only the insulation function, but also the flame retardant function, which is beneficial to improve the flame retardant and fire resistance of the electric control box 11. In addition, the manufacturing cost of the electric control box 11 can also be reduced.

[0145] According to one embodiment of the present invention, the inductive device 31 includes a first inductive device 310, and the electric control box 11 includes a first box wall 10a, the first box wall 10a is located on the side of the first inductive device 310 away from the circuit board 21, and a portion of the first box wall 10a protrudes in a direction away from the circuit board 21 to form a protrusion b, and an avoidance cavity is formed on the inner side of the protrusion b, and at least a portion of the first inductive device 310 is accommodated in the avoidance cavity.

[0146] By providing the protrusion b to form an avoidance cavity to accommodate the inductive device 31, the first aspect can increase the heat radiation area of ​​the first inductive device 310 and improve the heat dissipation efficiency. It can be understood that the first inductive device 310 is at least partially accommodated in the avoidance cavity. In addition to heat radiation with the side wall of the electric control box 11 away from the circuit board 21, the first inductive device 310 also radiates heat with the wall located on the side of the first inductive device 310. Compared with heat radiation only with the side wall away from the circuit board 21, the first box wall 10a of the electric control box 11 of the embodiment of the present invention can increase the heat radiation area of ​​the first inductive device 310 by providing the protrusion b, which is beneficial to the heat radiation heat dissipation of the first inductive device 310 to the electric control box 11, and improves the heat radiation heat dissipation efficiency of the first inductive device 310.

[0147] The protrusion b is provided to form an avoidance cavity to accommodate the inductive device 31 . On the second aspect, the protrusion b can cover the heat dissipation of the first inductive device 310 , thereby reducing the adverse thermal impact of the heat flowing to other locations on other components on the circuit board 21 .

[0148] The avoidance cavity is formed by setting the protruding portion b to accommodate the inductive device 31. In the third aspect, the avoidance cavity avoids the first inductive device 310, improves the interference between the first inductive device 310 and the electric control box 11, and improves the working stability of the first inductive device 310. In addition, only a part of the electric control box 11 needs to be protruded in the direction away from the circuit board 21, and the electric control box 11 does not need to be raised as a whole to be away from the circuit board 21. The non-protruding part can save materials and reduce manufacturing costs. In addition, the non-protruding part of the electric control box 11 is closer to other components on the circuit board 21, which is conducive to the heat radiation and heat dissipation of other components.

[0149] There may be one or more inductive devices 31 , at least one of which is a first inductive device 310 , which is accommodated in the avoidance cavity, and the remaining inductive devices 31 may be arranged corresponding to the flat portion of the electric control box 11 .

[0150] For example, in some examples, the first inductive device 310 may be connected to a strong current, such as a PFC inductor or a common mode inductor, etc. The first inductive device 310 generates high heat and has a high height, while other inductive devices 31 are relatively low in height and generate relatively low heat. Therefore, a protrusion b is provided at the first box wall 10a opposite to the first inductive device 310. The protrusion b forms an avoidance cavity to avoid the first inductive device 310, which is conducive to the heat radiation heat dissipation of the first inductive device 310 to the electric control box 11, and can also cover the heat dissipation of the first inductive device 310 to avoid adverse thermal effects on other inductive devices 31, improve the interference between the first inductive device 310 and the electric control box 11, and improve the working stability of the first inductive device 310. The other inductive devices 31 with relatively low heights are arranged corresponding to the non-protruding parts of the electric control box 11, which not only saves materials, but also facilitates the heat radiation heat dissipation of the inductive devices 31 with low heights.

[0151] When there are multiple first inductive devices 310, optionally, at least two first inductive devices 310 are housed in the same avoidance cavity; or, further optionally, each first inductive device 310 is housed in a different avoidance cavity, and the first inductive devices 310 are arranged in a one-to-one correspondence with the protrusions b.

[0152] In some embodiments of the present invention, in the cross section of the circuit board 21, the cross-sectional width of the protrusion b remains unchanged in the direction away from the circuit board 21, and the protrusion b is constructed as a rectangle, and the protrusion b is formed by mutually perpendicular sides, which is convenient for design and processing.

[0153] Alternatively, in other embodiments of the present invention, Figure 8 and Fig. 9 As shown, on the cross section of the circuit board 21, the cross-sectional width of the protrusion b gradually decreases in the direction away from the circuit board 21. Compared with setting the cross-sectional width of the protrusion b to remain unchanged in the direction away from the circuit board 21, or expanding in the direction away from the circuit board 21, the shape of the protrusion b in the embodiment of the present invention can reduce the external space occupied by the electric control box 11 and save manufacturing materials.

[0154] In addition, the cross-sectional width of the protrusion b gradually decreases in the direction away from the circuit board 21, and the avoidance cavity formed by the protrusion b is funnel-shaped, which shrinks in the direction away from the circuit board 21, which is beneficial to concentrate the heat dissipation of the first inductive device 310, and further reduce the adverse thermal effects of the heat flowing to other locations on other components on the circuit board 21.

[0155] For some annular first inductive devices 310, such as Figure 8 and Fig. 9As shown, the placement orientation of the first inductive device 310 can be set to roughly match the shape of the protrusion b to maximize the use of the space in the avoidance cavity and reduce the distance between each position of the protrusion b and the first inductive device 310, thereby improving the thermal radiation heat dissipation efficiency of the first inductive device 310.

[0156] Furthermore, when used in the embodiment having a "heat dissipation duct 50" described later, the airflow of the heat dissipation duct 50 can be set to flow in a direction from one side of the width of the protrusion b to the other side of the width. In this way, since the width gradually decreases, it is conducive to smooth flow of the airflow, reducing wind resistance, improving ventilation efficiency, and facilitating heat dissipation.

[0157] Alternatively, if Figure 8 As shown, the cross-sectional profile of the protrusion b is a trapezoid, the spacing between the waists of the trapezoid gradually decreases in the direction away from the circuit board 21, and the side away from the circuit board 21 is connected to the two waists and parallel to the bottom of the trapezoid. Each side of the trapezoid is a straight line, which facilitates the manufacturing and processing of the protrusion b and improves the production efficiency of the electric control box 11.

[0158] Alternatively, if Fig. 9 As shown, the cross-sectional profile of the protrusion b is an arc. When the cross-sectional shape of the first inductive device 310 is a circular ring, the first inductive device 310 is disposed in the avoidance cavity formed by the protrusion b having an arc-shaped cross-sectional profile, which can improve the shape matching degree between the first inductive device 310 and the protrusion b, and the spacing between the protrusion b and the first inductive device 310 is small and uniform, thereby improving the heat radiation heat dissipation efficiency of the first inductive device 310.

[0159] Alternatively, the cross-sectional profile of the protrusion b is a stage-shaped structure formed by an arc-shaped waist, the waist of the stage-shaped structure is an arc-shaped structure, and the spacing between the waists gradually decreases in the direction away from the circuit board 21, and the edge away from the circuit board 21 is connected to the two waists and is parallel to the bottom of the protrusion b. This can not only improve the shape matching degree between the first inductive device 310 and the protrusion b, but also facilitate the manufacturing and processing of the protrusion b.

[0160] Alternatively, the cross-sectional profile of the protrusion b may also be a pyramid-shaped, stepped shape, etc., which will not be elaborated here.

[0161] In some embodiments of the present invention, Figure 8 and Fig. 9 As shown, the electric control component 100 further includes an air duct cover 4a disposed outside the electric control box 11, and a heat dissipation air duct 50 is formed between the air duct cover 4a and the first box wall 10a. The air flow direction of the heat dissipation air duct 50 is from one side of the cross-sectional width of the protrusion b to the other side of the cross-sectional width, as shown in FIG. Figure 8 As shown, the arrow direction is the air flow direction.

[0162] By providing the air duct cover 4a, a heat dissipation air duct 50 is formed between the air duct cover 4a and the first box wall 10a. The heat dissipation airflow flows through the heat dissipation air duct 50 to exchange heat with the first box wall 10a. The heat dissipation airflow takes away the heat radiated from the inductive element to the electric control box 11, thereby achieving heat dissipation of the heating element 3a. Furthermore, by providing the air duct cover 4a to dissipate heat from the electric control box 11, it is not necessary to provide an airflow channel for heat dissipation on the electric control box 11, thereby preventing pollutants such as oil and dust from entering the electric control box 11, thereby improving the working stability of the electric control component 100.

[0163] The airflow in the heat dissipation duct 50 flows from one side of the cross-sectional width of the protrusion b to the other side of the cross-sectional width. Figure 8 and Fig. 9 As shown, the arrow direction is the airflow direction. Since the cross-sectional width gradually decreases in the direction away from the circuit board 21, the airflow rises along one side of the cross-sectional width of the protrusion b in the direction away from the circuit board 21, and in the process of flowing to the other side of the cross-sectional width of the protrusion b, the airflow rises gently along the protrusion b. Compared with setting the cross-sectional width of the protrusion b to remain unchanged in the direction away from the circuit board 21, or setting the cross-sectional width of the protrusion b to expand in the direction away from the circuit board 21, the cross-sectional width shape of the protrusion b in the embodiment of the present invention can reduce wind resistance, improve airflow, thereby improving ventilation efficiency, and improving the heat dissipation efficiency of the electric control component 100.

[0164] In some specific embodiments of the present invention, the air duct cover 4a is a plastic part, which not only forms the heat dissipation air duct 50, but also serves as insulation and flame retardant, improves the safety of the electric control component 100, and reduces the cost. However, the present application is not limited thereto, for example, in other embodiments of the present application, the air duct cover 4a can also be set as a metal cover.

[0165] In some embodiments of the present invention, Fig. 9 As shown, the capacitive device 32 includes a first capacitive device 320, and the end of the first capacitive device 320 away from the circuit board 21 is the distal end of the first capacitive device 320. The distance L2 between the distal end of the first capacitive device 320 and the electric control box 11 is 5mm-10mm, for example, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, etc. In general, the distal end of the first capacitive device 320 is the position of the first capacitive device 320 closest to the electric control box 11. When the distance between the distal end of the first capacitive device 320 and the electric control box 11 is too large, the heat radiation heat dissipation efficiency of the first capacitive device 320 to the electric control box 11 is low, and the heat dissipation capacity of the first capacitive device 320 is insufficient; and when the distance between the distal end of the first capacitive device 320 and the electric control box 11 is too small, the electrical safety distance is not met.

[0166] By setting the distance between the distal end of the first capacitive device 320 and the electric control box 11 to the above-mentioned distance value, the distance between the distal end of the first capacitive device 320 and the electric control box 11 is smaller, which is beneficial to the heat radiation heat dissipation from the first capacitive device 320 to the electric control box 11, thereby improving the heat dissipation effect of the first capacitive device 320; and by setting the distance between the distal end of the first capacitive device 320 and the electric control box 11 to the above-mentioned distance value, the requirement of electrical safety distance can also be met.

[0167] In some embodiments of the present invention, Fig. 9 As shown, the inductive device 31 includes a first inductive device 310, and the capacitive device 32 includes a first capacitive device 320. The first inductive device 310 and the first capacitive device 320 are located on the same side of the circuit board 21 in the thickness direction, and the height H1 of the first inductive device 310 is higher than the height H2 of the first capacitive device 320 in the thickness direction of the circuit board 21, that is, H1>H2. The electric control box 11 includes a first box wall 10a, and the first box wall 10a is located on a side of the first inductive device 310 away from the circuit board 21. The first box wall 10a corresponding to the first inductive device 310 is the first part of the first box wall 10a, and the first box wall 10a corresponding to the first capacitive device 320 is the second part of the first box wall 10a. The distance H3 between the first part of the first box wall 10a and the circuit board 21 is greater than the distance H4 between the second part of the first box wall 10a and the circuit board 21, that is, H3>H4.

[0168] In some embodiments of the present invention, Figure 8 As shown, the distance between the air duct cover 4a and the electric control box 11 is the height H0 of the heat dissipation duct 50, and the height of the heat dissipation duct 50 at least at the position corresponding to the inductive device 31 is 10mm to 15mm, for example, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, etc.

[0169] If the height of the heat dissipation duct 50 is too large or too small, it is not conducive to the heat dissipation of the inductive device 31. When the height of the heat dissipation duct 50 is too large, the flow rate of the heat dissipation airflow through the heat dissipation duct 50 is slow, and the heat exchange efficiency between the heat dissipation airflow and the electric control box 11 is low; when the height of the heat dissipation duct 50 is too small, the heat dissipation airflow flow is small and the heat dissipation capacity is insufficient. By setting the height of the heat dissipation duct 50 at the position corresponding to the inductive device 31 to the above range, the heat exchange efficiency of the heat dissipation airflow can be improved, thereby improving the heat dissipation speed of the inductive device 31.

[0170] In some embodiments of the present invention, Figure 8 and Fig. 9As shown, the electric control component 100 also includes an air duct cover 4a, which is arranged outside the electric control box 11 and located on the side of the inductive device 31 away from the circuit board 21. A heat dissipation air duct 50 is formed between the air duct cover 4a and the electric control box 11. The air duct cover 4a itself or together with the electric control box 11 defines an air inlet 51 of the heat dissipation air duct 50, and the air duct cover 4a itself or together with the electric control box 11 defines an air outlet 52 of the heat dissipation air duct 50.

[0171] When the electric control component 100 is working, the heat generating device 3a generates heat, and the electric control box 11 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 11. By providing the air duct cover 4a, a heat dissipation air duct 50 is formed between the air duct cover 4a and the electric control box 11, and the heat dissipation airflow flows through the heat dissipation air duct 50 to exchange heat with the electric control box 11, taking away the heat radiated from the inductive element to the electric control box 11, thereby accelerating the heat dissipation efficiency of the inductive device 31.

[0172] Optionally, the air duct cover 4a may form an air inlet 51 for the heat dissipation airflow to enter, or the air duct cover 4a and the electric control box 11 may jointly form an air inlet 51 for the heat dissipation airflow to enter. Similarly, the air duct cover 4a may form an air outlet 52 for the heat dissipation airflow to flow out, or the air duct cover 4a and the electric control box 11 may jointly form an air outlet 52 for the heat dissipation airflow to flow out.

[0173] In some specific embodiments of the present invention, the inductive device 31 includes a PFC inductor, and the capacitive device 32 includes a high-voltage electrolytic capacitor. The PFC inductor and the high-voltage electrolytic capacitor are located on the same side of the circuit board 21 and are arranged in parallel in the air flow direction of the heat dissipation duct 50 to prevent thermal crosstalk between the PFC inductor and the high-voltage electrolytic capacitor.

[0174] In some embodiments of the present invention, Figure 8 and Fig. 9 As shown, a power device 6 is also provided on the circuit board 21. The power device 6 generates heat when working, and the power device 6 is arranged on the circuit board 21 and enclosed in the electric control box 11. Therefore, the electric control component 100 also includes a heat sink 7. The heat sink 7 cooperates with at least one power device 6 for heat transfer, and at least part of the heat sink 7 is located outside the electric control box 11. The heat sink 7 conducts the heat of the power device 6 to the outside of the electric control box 11, thereby improving the heat dissipation capacity of the power device 6.

[0175] In the air flow direction of the heat dissipation duct 50, the radiator 7 is located downstream of the inductive device 31. The heat dissipation airflow first passes through the electric control box 11 corresponding to the inductive device 31, and then passes through the radiator 7, thereby avoiding the heat of the radiator 7 from adversely affecting the heat dissipation of the inductive device 31. In addition, the heat dissipation airflow flowing in the heat dissipation duct 50 undergoes multiple heat exchanges, thereby improving the heat exchange efficiency of the heat dissipation airflow.

[0176] In some embodiments of the present invention, the power device 6 includes, but is not limited to, several relatively small and short components such as a compressor IPM, a fan IPM, an IGBT, and a bridge stack.

[0177] In some embodiments of the present invention, the heat sink 7 includes heat dissipation fins, the power device 6 conducts heat to the heat dissipation fins, and the heat dissipation airflow flows through the heat dissipation fins to perform heat exchange with the heat dissipation fins, taking away the heat, thereby improving the heat dissipation effect of the power device 6. It is worth noting that the method of "heat transfer coordination" is not limited, for example, it can be direct or indirect contact heat transfer, or it can be heat radiation heat transfer with a small gap, etc.

[0178] 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 electric control component 100 has a higher requirement for heat dissipation. The air conditioner 1000 of the present invention is provided with the above-mentioned electric control component 100, which can improve the heat dissipation efficiency of the electric control component 100 and improve the working stability of the air conditioner 1000.

[0179] 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.

[0180] 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.

[0181] 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.

[0182] 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.

[0183] 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.

[0184] 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, an exhaust fan and a water utilization component. The housing has a water receiving tank, and an air supply duct and an exhaust duct isolated from each other. The first heat exchanger is arranged in the air supply duct, and 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. The electric control component is arranged on the air inlet path of the exhaust fan. The water utilization component is suitable for applying the water in the water receiving tank to the condenser. The method comprises: Get the outdoor ambient temperature; When the outdoor ambient temperature is greater than a first preset temperature, if it is determined that there is no water in the water receiving tank, the temperature inside the electronic control component is obtained, and at least one of the rotation speed of the exhaust fan and the frequency of the compressor is controlled according to the temperature inside the electronic control component.

2. The method according to claim 1, characterized in that Determining that there is no water in the water receiving tank includes: Detecting water level information in the water receiving tank; When it is determined according to the water level information that the water level in the water receiving tank is lower than a first preset water level, obtaining the electric power of the air conditioner; If the electric power is greater than or equal to the first preset power, it is determined that there is no water in the water receiving tank.

3. The method according to claim 1 or 2, characterized in that: Controlling at least one of the rotation speed of the exhaust fan and the frequency of the compressor according to the temperature in the electronically controlled component, comprising: Determining a temperature range within which the temperature of the electronically controlled component is located; The speed of the exhaust fan is controlled to increase accordingly according to the temperature range of the temperature in the electronically controlled component.

4. The method according to claim 3, characterized in that The speed of the exhaust fan is controlled to increase accordingly according to the temperature range of the temperature in the electric control component, including: When the temperature in the electric control component is lower than the second preset temperature, controlling the speed of the exhaust fan to increase to the first preset speed; When the temperature in the electric control component is greater than or equal to a second preset temperature, the speed of the exhaust fan is controlled to increase to a second preset speed, wherein the second preset speed is greater than the first preset speed.

5. The method according to claim 4, characterized in that At least one of the rotation speed of the exhaust fan and the frequency of the compressor is controlled according to the temperature in the electric control component, and further comprising: When the temperature in the electronic control component is greater than or equal to a third preset temperature, the compressor is controlled to operate at a reduced frequency, wherein the third preset temperature is greater than the second preset temperature.

6. The method according to claim 4, characterized in that When it is determined that there is water in the water receiving tank, the method further includes: The water utilization component is controlled to work, the exhaust fan is controlled to operate at a target speed, and the compressor is controlled to operate at a target frequency, wherein the target speed is less than a first preset speed.

7. The method according to claim 1, characterized in that When the outdoor ambient temperature is less than or equal to a first preset temperature, the method further includes: Control the air conditioner to operate normally.

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 a water tank, and 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; a water utilization component, the water utilization component being adapted to apply the water in the water receiving tank to the condenser; An electronic control component is arranged on the air inlet path of the exhaust fan, and the electronic control component includes a circuit board. The circuit board is configured to obtain the temperature inside the electronic control component when it is determined that there is no water in the water receiving tank when the outdoor ambient temperature is greater than a first preset temperature, and control at least one of the rotation speed of the exhaust fan and the frequency of the compressor according to the temperature inside the electronic control component.

11. The air conditioner according to claim 10, characterized in that: Also includes: A water level detection component, wherein the water level detection component is suitable for detecting water level information in the water receiving tank; The circuit board is also configured to obtain the electric power of the air conditioner when it is determined according to the water level information that the water level in the water receiving tank is lower than a first preset water level, and determine that there is no water in the water receiving tank when the electric power is greater than or equal to the first preset power.

12. The air conditioner according to claim 10, characterized in that: The electronic control component also includes a box body assembly and a heat sink, wherein the box body assembly has a closed first chamber and a second chamber separated from the first chamber, wherein the capacitive heating device arranged on the circuit board is located in the first chamber, and the power heating device arranged on the circuit board is located in the second chamber, and the heat sink is located in the second chamber and contacts with the power heating device for heat transfer.

13. The air conditioner according to claim 12, characterized in that: The box body assembly has a heat dissipation and ventilation area communicating with the second chamber and the outside of the box body assembly.

14. The air conditioner according to claim 13, characterized in that: The box body assembly includes an air supply path suitable for absorbing heat from the first chamber and supplying air to the second chamber, and the heat dissipation and ventilation area includes a heat dissipation exhaust port.

15. The air conditioner according to claim 10, characterized in that: The air supply fan and the air exhaust fan are both arranged outside the housing and assembled to the housing.

16. The air conditioner according to claim 15, characterized in that: The housing of the exhaust fan includes a connecting pipe connected to the electric control component, and the connecting pipe includes a curved pipe section.

17. The air conditioner according to claim 10, characterized in that: The electric control component further includes an electric control box and a heating device. The electric control box is a closed box body. The circuit board is accommodated in the electric control box. The heating device includes an inductive device arranged on the circuit board. The inductive device is accommodated in the electric control box.

18. The air conditioner according to claim 17, characterized in that: The inductive device includes a first inductive device, an end of the first inductive device away from the circuit board is a distal end of the first inductive device, the electric control box includes an inner shell and an outer shell covering the inner shell, the inner shell is an insulating shell and is formed with a first opening, the first opening is opposite to the distal end of the first inductive device, and the outer shell is a metal shell and blocks and closes the first opening.

19. The air conditioner according to claim 17, characterized in that: The inductive device includes a first inductive device, and the electrical control box includes a first box wall. The first box wall is located on a side of the first inductive device away from the circuit board. A portion of the first box wall protrudes in a direction away from the circuit board to form a protrusion, and an avoidance cavity is formed on the inner side of the protrusion. At least a portion of the first inductive device is accommodated in the avoidance cavity.

20. The air conditioner according to any one of claims 10 to 19, characterized in that: The refrigerant in the compressor includes carbon dioxide.

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