Method and device for controlling air conditioner and air conditioner

Abstract

The invention relates to the technical field of refrigeration equipment, and discloses a method and device for controlling an air conditioner and the air conditioner. The air conditioner comprises an outdoor unit and a spraying device, the outdoor unit comprises an outdoor heat exchanger, and the spraying device corresponds to the outdoor heat exchanger and is used for spraying a solution to the outdoor heat exchanger; the method comprises the steps that when the air conditioner is in a refrigeration mode, operation parameters of the air conditioner are obtained; the refrigeration energy efficiency of the air conditioner is determined according to the operation parameters of the air conditioner; and when the refrigeration energy efficiency of the air conditioner is smaller than or equal to the preset energy efficiency and the duration is larger than or equal to the first duration, the spraying device is controlled to be started. According to the embodiment of the invention, the spraying device is controlled to work through the refrigeration energy efficiency, so that the heat dissipation effect of the outdoor heat exchanger of the outdoor unit is improved from multiple aspects, the power consumption of the air conditioner is reduced, and the normal operation of the air conditioner is ensured.

Description

Technical Field

[0001] The present application relates to the technical field of refrigeration equipment, for example, to a method, a device and an air conditioner for controlling an air conditioner. Background Art

[0002] At present, in summer, the air conditioner operates in a refrigeration condition, and the outdoor heat exchanger serves as a condenser, and the refrigerant circulates and condenses in the condenser to release heat. Due to the high temperature in summer, the heat dissipation of the condenser has a great impact on the normal use of the air conditioner. When the heat dissipation of the condenser is not good, the system will stop due to high-pressure protection, which affects the user experience.

[0003] Currently, the methods for improving the heat dissipation speed of the outdoor heat exchanger usually include improving the material of the heat exchange tube to improve the heat conduction performance of the heat exchange tube. Or, increasing the area of the outdoor heat exchanger to increase the heat dissipation area, or increasing the air intake volume to improve the heat dissipation effect.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

[0005] In the related art, by improving the structure to improve the heat dissipation of the outdoor heat exchanger, after the heat exchange effect of the outdoor heat exchanger is improved to a certain extent, the heat exchange effect cannot be further effectively improved.

[0006] It should be noted that the information disclosed in the above background art section is only used to enhance the understanding of the background of the present application, and thus may include information that does not constitute the prior art known to those of ordinary skill in the art. Summary of the Invention

[0007] To have a basic understanding of some aspects of the disclosed embodiments, a simple summary is given below. This summary is not a comprehensive review, nor is it intended to identify key / important elements or delineate the scope of protection of these embodiments, but rather serves as a preamble to the subsequent detailed description.

[0008] The embodiments of the present disclosure provide a method, a device and an air conditioner for controlling an air conditioner to improve the heat dissipation effect of the outdoor heat exchanger and improve the user experience.

[0009] The embodiments of the present disclosure provide a method for controlling an air conditioner. The air conditioner includes an outdoor unit and a spraying device. The outdoor unit includes an outdoor heat exchanger. The spraying device corresponds to the outdoor heat exchanger and is used to spray a solution onto the outdoor heat exchanger. The method includes: when the air conditioner is in a refrigeration mode, obtaining the operating parameters of the air conditioner; determining the refrigeration energy efficiency of the air conditioner according to the operating parameters of the air conditioner; and controlling the spraying device to be turned on when the refrigeration energy efficiency of the air conditioner is less than or equal to a preset energy efficiency and the duration is greater than or equal to a first duration.

[0010] Optionally, the operating parameters of the air conditioner include the temperature of the outdoor heat exchanger coil. Determining the refrigeration energy efficiency of the air conditioner according to the operating parameters of the air conditioner includes: determining the enthalpy before the compressor valve according to the temperature of the outdoor heat exchanger coil; obtaining the compressor suction enthalpy and the refrigerant flow rate of the air conditioner; determining the refrigeration capacity of the air conditioner according to the enthalpy before the compressor valve, the compressor suction enthalpy and the refrigerant flow rate of the air conditioner; and determining the refrigeration energy efficiency of the air conditioner according to the refrigeration capacity of the air conditioner.

[0011] Optionally, determining the enthalpy before the compressor valve according to the temperature of the outdoor heat exchanger coil includes:

[0012]

[0013] where Hliq is the enthalpy before the compressor valve and Tdef is the temperature of the outdoor unit coil.

[0014] Optionally, when the outdoor heat exchanger includes multiple low-temperature regions, obtaining the temperature of the outdoor heat exchanger coil includes: obtaining multiple temperatures corresponding to multiple low-temperature regions of the outdoor unit; and determining the highest temperature among the multiple temperatures as the temperature of the outdoor heat exchanger coil.

[0015] Optionally, the method further includes: controlling the spray device to turn on when the operating state of the compressor is in the frequency-limited state; or controlling the spray device to turn on when the condensation pressure of the outdoor heat exchanger is greater than or equal to a pressure threshold, the ambient temperature where the outdoor heat exchanger is located is greater than or equal to a temperature threshold, and the duration is greater than or equal to a second duration; or controlling the spray device to turn on when the fouling rate of the outdoor heat exchanger is greater than or equal to a preset fouling rate.

[0016] Optionally, the number of spray devices is multiple, and the multiple spray devices are arranged at intervals on the outer side of the outdoor heat exchanger. Controlling the spray devices to turn on when the refrigeration energy efficiency of the air conditioner is less than or equal to a preset energy efficiency and the duration is greater than or equal to a first duration includes: controlling all the multiple spray devices to turn on when the energy efficiency of the air conditioner is less than or equal to the preset energy efficiency and the duration is greater than or equal to the first duration; controlling the multiple spray devices to turn on alternately after the operating duration of the multiple spray devices reaches a third duration; or controlling the spray devices to turn on when the condensation pressure of the outdoor unit is greater than or equal to a pressure threshold, the ambient temperature where the outdoor heat exchanger is located is greater than or equal to a temperature threshold, and the duration is greater than or equal to a second duration includes: controlling all the multiple spray devices to turn on when the condensation pressure of the outdoor unit is greater than or equal to the pressure threshold, the ambient temperature where the outdoor heat exchanger is located is greater than or equal to the temperature threshold, and the duration is greater than or equal to the second duration; controlling the multiple spray devices to turn on alternately after the operating duration of the multiple spray devices reaches a fourth duration.

[0017] An embodiment of the present disclosure further provides a device for controlling an air conditioner, including a processor and a memory storing program instructions, wherein the processor is configured to execute the method for controlling an air conditioner according to any one of the above embodiments when running the program instructions.

[0018] An embodiment of the present disclosure further provides an air conditioner, which includes: an outdoor unit including an outdoor heat exchanger; a spraying device located in the middle of at least one side of the outdoor heat exchanger, including at least two nozzle groups, and the at least two nozzle groups spray towards both sides of the spraying device; wherein, one nozzle group includes a plurality of nozzles, and the plurality of nozzles in one nozzle group are arranged in sequence in the vertical direction; and / or, the number of the spraying devices is multiple, and the multiple spraying devices are spaced outside the outdoor heat exchanger.

[0019] Optionally, the air conditioner further includes: a connecting plate connected between the spraying device and the outdoor unit; wherein, the connecting plate is a hollow structure, and / or, the spraying device is slidably connected to the outdoor unit through the connecting plate.

[0020] Optionally, the air conditioner further includes: the device for controlling an air conditioner according to the above embodiment.

[0021] The method, device and air conditioner for controlling an air conditioner provided by the embodiments of the present disclosure can achieve the following technical effects:

[0022] The outdoor unit of the air conditioner is provided with a spraying device, and the spraying device can spray a solution onto the outdoor heat exchanger, thereby increasing the contact area between the solution and the outdoor heat exchanger by spraying onto the outdoor heat exchanger and improving the heat dissipation effect of the outdoor heat exchanger. The air conditioner of the embodiment of the present disclosure controls the operation of the spraying device according to the refrigeration energy efficiency. Poor heat dissipation of the outdoor heat exchanger of the outdoor unit is likely to cause a decrease in the refrigeration energy efficiency of the air conditioner, increase the power consumption of the air conditioner, and affect the refrigeration effect. When the refrigeration energy efficiency of the air conditioner is less than or equal to the preset energy efficiency and the duration reaches the first duration, the spraying device is controlled to be turned on, so that the solution of the spraying device can be sprayed onto the outdoor heat exchanger of the outdoor unit, and the outdoor heat exchanger is cooled by spraying to ensure the normal operation of the air conditioner. The embodiment of the present disclosure improves the heat dissipation effect of the outdoor heat exchanger of the outdoor unit in multiple aspects by the spraying device and by controlling the operation of the spraying device according to the refrigeration energy efficiency, reduces the power consumption of the air conditioner, and ensures the normal operation of the air conditioner.

[0023] The above general description and the following description are only exemplary and explanatory, and are not used to limit the present application. Description of the Drawings

[0024] One or more embodiments are exemplarily illustrated by corresponding drawings. These exemplary illustrations and the drawings do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a scale limitation, and wherein:

[0025] Figure 1 is a schematic structural diagram of a perspective of an outdoor unit provided by an embodiment of the present disclosure;

[0026] Figure 2 is a schematic structural diagram of another perspective of an outdoor unit provided by an embodiment of the present disclosure;

[0027] Figure 3 is a schematic structural diagram of a connecting plate provided by an embodiment of the present disclosure;

[0028] Figure 4 is a schematic diagram of a method for controlling an air conditioner provided by an embodiment of the present disclosure;

[0029] Figure 5 is a schematic diagram of another method for controlling an air conditioner provided by an embodiment of the present disclosure;

[0030] Figure 6 is a schematic diagram of another method for controlling an air conditioner provided by an embodiment of the present disclosure;

[0031] Figure 7 is a schematic diagram of another method for controlling an air conditioner provided by an embodiment of the present disclosure;

[0032] Figure 8 is a schematic diagram of another device for controlling an air conditioner provided by an embodiment of the present disclosure.

[0033] Reference numerals:

[0034] 10, outdoor unit; 20, outdoor heat exchanger; 201, front baffle; 30, spraying device; 301, first spraying device; 302, second spraying device; 303, third spraying device; 304, fourth spraying device; 40, connecting plate; 401, first fixing part; 402, second fixing part; 403, third fixing part; 50, cooling fan. Detailed implementation manners

[0035] In order to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. The attached drawings are for reference and illustration only, and are not intended to limit the embodiments of the present disclosure. In the following technical description, for the sake of explanation, numerous details are provided to give a thorough understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be shown in a simplified manner to simplify the drawings.

[0036] In the embodiments of the present disclosure, terms such as "first" and "second" in the description and claims of the embodiments and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that such data may be interchanged under appropriate circumstances so as to describe the embodiments of the present disclosure herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0037] In the embodiments of the present disclosure, the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", "middle", "outer", "front", and "rear" is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the embodiments of the present disclosure and their embodiments, and are not used to limit that the indicated devices, elements, or components must have a specific orientation, or be constructed and operated in a specific orientation. And, in addition to being able to represent an orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0038] In addition, the terms "arranged", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there is internal communication between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0039] Unless otherwise specified, the term "plurality" means two or more.

[0040] The term "and / or" is a description of the associated relationship of an object, indicating that three relationships may exist. For example, A and / or B means: A or B, or, A and B these three relationships.

[0041] It should be noted that, without conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0042] For the sake of convenience of description, the front, back, left, and right directions of the present application are as Figure 1 and Figure 2 shown.

[0043] Combined with Figures 1 to 3 shown, an embodiment of the present disclosure provides an air conditioner. The air conditioner includes an indoor unit and an outdoor unit 10. Both the indoor unit and the outdoor unit 10 include heat exchangers. The indoor heat exchanger of the indoor unit is used to exchange heat with indoor air to reduce the indoor temperature. The outdoor heat exchanger 20 of the outdoor unit 10 exchanges heat with outdoor air to reduce the temperature of the outdoor heat exchanger 20 of the outdoor unit 10, achieving the heat dissipation effect of the outdoor heat exchanger 20 of the outdoor unit 10. The air conditioner includes a compressor, a condenser, a throttling device, and an evaporator that are sequentially connected through a refrigerant pipeline along the refrigerant flow direction. The high-temperature and high-pressure refrigerant flowing out of the compressor flows into the condenser, and after condensing and dissipating heat in the condenser, it then flows into the throttling device, and after throttling through the throttling device, it flows into the evaporator, and after absorbing heat and evaporating in the evaporator, it then flows back into the compressor. The air conditioner includes an indoor unit and an outdoor unit 10. The indoor heat exchanger of the indoor unit includes an evaporator, and the outdoor heat exchanger 20 of the outdoor unit 10 includes a condenser.

[0044] Optionally, the air conditioner further includes a spraying device 30. The spraying device 30 corresponds to the outdoor heat exchanger 20 of the outdoor unit 10 and is used to spray a solution onto the outdoor heat exchanger 20 of the outdoor unit 10 to reduce the temperature of the outdoor heat exchanger 20 of the outdoor unit 10.

[0045] Optionally, the spraying device 30 is located in the middle of at least one side of the outdoor heat exchanger 20. The spraying device 30 includes at least two nozzle groups, and the at least two nozzle groups spray towards both sides of the spraying device 30;

[0046] In an embodiment of the present disclosure, the spraying device 30 is located in the middle of at least one side of the outdoor heat exchanger 20. The spraying device 30 can spray towards both sides through the nozzle groups, which can increase the spraying uniformity of the spraying device 30.

[0047] It should be noted that: In the embodiment of the present disclosure, the middle described does not strictly refer to the center line of one side of the outdoor heat exchanger 20. The area far from the edge and close to the center line can be regarded as the middle of the side.

[0048] Optionally, one nozzle group includes multiple nozzles, and the multiple nozzles of one nozzle group are sequentially arranged in the vertical direction.

[0049] In this embodiment of the present disclosure, the multiple nozzles of one nozzle group are sequentially arranged in the vertical direction, so that the spraying device 30 can provide spraying uniformity in the height direction, further improving the spraying uniformity of the spraying device 30.

[0050] Optionally, the number of the spraying devices 30 is multiple, and the multiple spraying devices 30 are arranged at intervals on the outer side of the outdoor heat exchanger 20.

[0051] In the embodiment of the present disclosure, the arrangement of the multiple spraying devices 30 further increases the spraying area of the spraying devices 30 and improves the heat dissipation effect.

[0052] Optionally, multiple spraying devices 30 are provided on at least one side surface of the outdoor heat exchanger 20, so as to increase the spraying area of this side surface.

[0053] Optionally, the multiple spraying devices 30 include a first spraying device 301 and a second spraying device 302. Both the first spraying device 301 and the second spraying device 302 are located on the first side surface of the outdoor heat exchanger 20, and both the first spraying device 301 and the second spraying device 302 are located in the middle of the first side surface. Specifically, the first spraying device 301 and the second spraying device 302 are respectively located on the left and right sides of the center line of the first side surface. In this way, the spraying area of the spraying device 30 can cover the first side surface of the outdoor heat exchanger 20.

[0054] Optionally, the multiple spraying devices 30 further include a third spraying device 303 and a fourth spraying device 304. The third spraying device 303 is located on the second side surface, and the fourth spraying device 304 is located on the third side surface, where the second side surface is connected to the left side of the first side surface, the third side surface is connected to the right side of the first side surface, and the second side surface and the third side surface are oppositely arranged.

[0055] In the embodiment of the present disclosure, the arrangement of the third spraying device 303 and the fourth spraying device 304 enables the multiple side surfaces of the outdoor heat exchanger 20 to be provided with spraying devices 30, which can further increase the spraying area and improve the spraying effect.

[0056] Optionally, the first spraying device 301 is located on the left side of the center line of the first side surface, and the first spraying device 301 is provided with a first valve. The third spraying device 303 is provided with a second valve. The second spraying device 302 is located on the right side of the center line of the first side surface, and the second spraying device 302 is provided with a third valve. The fourth spraying device 304 is provided with a fourth valve. Among them, the first valve, the second valve, the third valve, and the fourth valve can all be controlled to open or close to turn on or off the corresponding spraying device 30.

[0057] Optionally, the air conditioner further includes a connecting plate 40, and the connecting plate 40 is connected between the spraying device 30 and the outdoor unit 10. Among them, the connecting plate 40 is of a hollow structure.

[0058] In the embodiment of the present disclosure, the connecting plate 40 is of a hollow structure, so that it can reduce or avoid the connecting plate 40 blocking the ventilation effect of the outdoor heat exchanger 20 and affecting the heat dissipation effect.

[0059] Optionally, the spraying device 30 is slidably connected to the outdoor unit 10 through the connecting plate 40.

[0060] In the embodiment of the present disclosure, the connecting plate 40 can drive the spraying device 30 to slide relative to the outdoor unit 10. In this way, when the spraying device 30 is not needed, the connecting plate 40 can be moved to move the spraying device 30 to one side, avoiding the heat exchange device and the connecting plate 40 from affecting the ventilation effect of the outdoor heat exchanger 20 and the heat exchange effect.

[0061] Exemplarily, the spraying device 30 can be moved to the column of the outdoor heat exchanger 20 for fixation, reducing the influence of the spraying device 30 and the connecting plate 40 on the ventilation of the outdoor heat exchanger 20.

[0062] Optionally, the connecting plate 40 includes a first fixing portion 401, a second fixing portion 402 and a third fixing portion 403. The first fixing portion 401 and the second fixing portion 402 are connected to the upper and lower ends of the third fixing portion 403. The first fixing portion 401 and the second fixing portion 402 are used to connect the spraying device 30 and the outdoor unit 10. The third fixing portion 403 protrudes from the first fixing portion 401 and the second fixing portion 402, and the third fixing portion 403 protrudes in a direction away from the outdoor heat exchanger 20, so as to reduce the shielding effect of the connecting plate 40 on the outdoor heat exchanger 20 and the spraying device 30 and ensure the spraying effect and the ventilation effect.

[0063] Optionally, the outdoor unit 10 further includes a cooling fan 50, and the cooling fan 50 can drive air flow to flow through the outdoor heat exchanger 20 to improve the heat dissipation effect of the outdoor heat exchanger 20.

[0064] Optionally, there are a plurality of cooling fans 50, and the plurality of cooling fans 50 are arranged at intervals to increase the ventilation volume.

[0065] Optionally, the cooling fan 50 is located at the top of the outdoor heat exchanger.

[0066] Optionally, the spraying device 30 is disposed on the rear wall surface and / or the side surface of the outdoor unit 10. That is to say, the spraying device 30 is not disposed on the front wall surface of the outdoor unit 10 to avoid the spraying device 30 from affecting users or the components on the front side.

[0067] Optionally, the outdoor unit 10 includes an electric control box and a front baffle 201. The electric control box is located on the front side of the outdoor unit 10, and the front baffle 201 is located on the front side of the electric control box. In this way, the spraying device 30 disposed on the rear side or the side surface can avoid the spraying device 30 from spraying at the electric control box on the front side and protect the normal operation of the electric control box.

[0068] Optionally, the spraying device 30 is connected to the municipal pipe network, so that the water sprayed by the spraying device 30 is water. It can be understood that the spraying device 30 may also include a water storage tank, and the solution in the water storage tank may be a solution with other cooling media. Any solution capable of dissipating heat from the outdoor radiator is an alternative embodiment of the present application.

[0069] Combined Figure 4 As shown, an embodiment of the present disclosure also provides a method for controlling an air conditioner. The method includes:

[0070] S401, when the air conditioner is in the cooling mode, the processor obtains the operating parameters of the air conditioner.

[0071] Here, when the air conditioner is in the cooling mode, the outdoor heat exchanger of the outdoor unit is a condenser, and the condenser condenses and dissipates heat to ensure the normal operation of the air conditioner. The heat dissipation effect of the condenser affects the cooling effect, cooling energy efficiency, and power consumption of the air conditioner.

[0072] S402, according to the operating parameters of the air conditioner, the processor determines the cooling energy efficiency of the air conditioner.

[0073] Here, according to the operating parameters of the air conditioner, the cooling energy efficiency of the air conditioner is determined. Poor heat dissipation of the condenser easily leads to a decrease in the cooling energy efficiency of the air conditioner, a reduction in the cooling effect, and an increase in power consumption.

[0074] S403, when the cooling energy efficiency of the air conditioner is less than or equal to the preset energy efficiency and the duration is greater than or equal to the first duration, the processor controls the spraying device to turn on.

[0075] In the embodiment of the present disclosure, when the cooling energy efficiency of the air conditioner is less than or equal to the preset energy efficiency and this situation lasts for the first duration, it means that the cooling energy efficiency of the air conditioner continues to decrease. At this time, the cooling capacity of the air conditioner decreases and the power consumption increases, resulting in a poor user experience. The processor controls the spraying device to turn on, and the spraying device sprays the solution towards the outdoor heat exchanger. The solution is a cooling solution, which can reduce the temperature of the outdoor heat exchanger. The spraying device evenly sprays the solution on the outdoor heat exchanger, which can improve the heat dissipation effect of the outdoor heat exchanger, improve the cooling energy efficiency of the air conditioner, and thus ensure the high-energy operation of the air conditioner, improving the cooling effect and user experience.

[0076] Optionally, the operating parameters of the air conditioner include the temperature of the outdoor heat exchanger coil. According to the operating parameters of the air conditioner, determining the cooling energy efficiency of the air conditioner includes: the processor determines the cooling energy efficiency of the air conditioner according to the temperature of the outdoor heat exchanger coil.

[0077] In the embodiments of the present disclosure, the processor first obtains the temperature of the outdoor heat exchanger coil. The temperature of the outdoor heat exchanger coil can reflect the temperature of the outdoor heat exchanger. The refrigeration energy efficiency of the air conditioner is determined according to the temperature of the outdoor heat exchanger coil, making the judgment of the refrigeration energy efficiency of the air conditioner more accurate. In this way, the spray device can be controlled to be turned on in a timely manner, and the heat dissipation efficiency of the outdoor heat exchanger can be improved.

[0078] Combined with Figure 5 As shown, the embodiments of the present disclosure also provide a method for controlling an air conditioner. The method includes:

[0079] S501, when the air conditioner is in the cooling mode, the processor obtains the temperature of the outdoor heat exchanger coil.

[0080] S502, according to the temperature of the outdoor heat exchanger coil, the processor determines the refrigeration energy efficiency of the air conditioner.

[0081] S503, when the refrigeration energy efficiency of the air conditioner is less than or equal to the preset energy efficiency and the continuous duration is greater than or equal to the first duration, the processor controls the spray device to be turned on.

[0082] In the embodiments of the present disclosure, the processor determines the refrigeration energy efficiency of the air conditioner according to the outdoor heat exchanger coil, making the opening of the spray device more accurate and better cooling the outdoor heat exchanger.

[0083] Optionally, determining the refrigeration energy efficiency of the air conditioner according to the operating parameters of the air conditioner includes: processing to determine the enthalpy before the compressor valve according to the temperature of the outdoor heat exchanger coil; the processor obtains the compressor suction enthalpy and the refrigerant flow rate of the air conditioner; according to the enthalpy before the compressor valve, the compressor suction enthalpy and the refrigerant flow rate of the air conditioner, the processor determines the refrigeration capacity of the air conditioner; according to the refrigeration capacity of the air conditioner, the processor determines the refrigeration energy efficiency of the air conditioner.

[0084] In the embodiments of the present disclosure, the temperature of the outdoor heat exchanger coil can accurately reflect the temperature of the outdoor heat exchanger. The processor determines the enthalpy before the compressor valve according to the temperature of the outdoor heat exchanger coil. After determining the enthalpy before the compressor valve, the refrigeration capacity of the air conditioner can be determined according to the suction enthalpy and refrigerant flow rate of the compressor. In this way, after the processor obtains the outdoor heat exchanger coil, the refrigeration energy efficiency of the air conditioner can be determined, and the opening of the spray device can be adjusted in a timely manner to ensure the refrigeration energy efficiency of the air conditioner.

[0085] Combined with Figure 6 As shown, the embodiments of the present disclosure also provide a method for controlling an air conditioner. The method includes:

[0086] S601, when the air conditioner is in the cooling mode, the processor obtains the temperature of the outdoor heat exchanger coil.

[0087] S602. Based on the temperature of the outdoor heat exchanger coil, the processor determines the enthalpy before the compressor valve.

[0088] S603. The processor obtains the compressor suction enthalpy and the refrigerant flow rate of the air conditioner.

[0089] S604. Based on the enthalpy before the compressor valve, the compressor suction enthalpy, and the refrigerant flow rate of the air conditioner, the processor determines the refrigeration capacity of the air conditioner.

[0090] S605. Based on the refrigeration capacity of the air conditioner, the processor determines the refrigeration energy efficiency of the air conditioner.

[0091] S606. When the refrigeration energy efficiency of the air conditioner is less than or equal to the preset energy efficiency and the continuous duration is greater than or equal to the first duration, the processor controls the spray device to turn on.

[0092] The enthalpy before the compressor valve refers to the enthalpy value of the working medium flowing before the compressor valve. Enthalpy is a physical quantity in thermodynamics that describes the thermal energy of a system. In the related art, to calculate the enthalpy before the compressor valve, the state parameters of the working medium, such as temperature, pressure, and composition, etc., need to be known. The specific calculation method depends on the nature of the working medium and the thermodynamic model used. In the embodiments of the present disclosure, the processor can determine the enthalpy before the compressor valve by obtaining the temperature of the outdoor heat exchanger coil. Then, by combining the prior art to obtain the compressor suction enthalpy and the refrigerant flow rate of the air conditioner, the refrigeration capacity and refrigeration energy efficiency of the air conditioner can be determined. Determining the enthalpy before the compressor valve through the temperature of the outdoor heat exchanger coil greatly improves the convenience of obtaining the enthalpy before the compressor valve, improves the convenience and accuracy of determining the energy efficiency of the air conditioner, and reduces the influence of other factors.

[0093] Optionally, determining the enthalpy before the compressor valve based on the temperature of the outdoor heat exchanger coil includes:

[0094]

[0095] Wherein, Hliq is the enthalpy before the compressor valve, and Tdef is the temperature of the outdoor unit coil.

[0096] In the embodiments of the present disclosure, the enthalpy before the compressor valve is determined using the above calculation formula. In this way, after the processor obtains the temperature of the outdoor heat exchanger coil, the enthalpy before the compressor valve can be determined. This simplifies the method of obtaining the enthalpy before the compressor valve, improves the convenience of obtaining the refrigeration energy efficiency of the air conditioner, and does not require the use of more complex thermodynamic models, such as thermodynamic diagrams, etc., for determination.

[0097] Optionally, the temperature of the outdoor unit coil is detected by a temperature sensor.

[0098] Optionally, the temperature of the outdoor unit coil is the temperature of the low-temperature region of the outdoor heat exchanger coil, that is, the lowest temperature of the outdoor heat exchanger coil. Here, the temperature sensor is provided in the low-temperature region of the outdoor heat exchanger coil where frosting is most likely to occur. This low-temperature region has the lowest temperature and is prone to frosting. This low-temperature region can be obtained through simulation or multiple simulations.

[0099] Optionally, when the outdoor heat exchanger includes multiple low-temperature regions, obtaining the temperature of the outdoor heat exchanger coil includes: the processor obtains multiple temperatures corresponding to multiple low-temperature regions of the outdoor unit; the processor determines the highest temperature among the multiple temperatures as the temperature of the outdoor heat exchanger coil.

[0100] In the embodiments of the present disclosure, when the size of the outdoor heat exchanger is large or the quantity is large, there may be multiple low-temperature regions with relatively low temperatures. In this case, the outdoor heat exchanger includes multiple low-temperature regions, and the number of temperature sensors is also multiple. When the lowest temperatures detected by the multiple temperature sensors are different, the coil temperature of the outdoor heat exchanger is the highest temperature among the multiple lowest temperatures. This can enable the spray device to be turned on in a timely manner to ensure the heat dissipation effect of the entire outdoor heat exchanger.

[0101] Optionally, according to the enthalpy before the compressor valve, the compressor suction enthalpy, and the refrigerant flow rate of the air conditioner, the processor determines the refrigeration capacity of the air conditioner, including: Qc = m(Hsuc - Hliq), where Qc is the refrigeration capacity of the air conditioner, m is the refrigerant flow rate of the air conditioner, and Hsuc is the suction enthalpy of the compressor.

[0102] In the embodiments of the present disclosure, the refrigeration capacity of the air conditioner is determined by the product of the refrigerant flow rate of the air conditioner and the difference between the suction enthalpy of the compressor and the enthalpy before the compressor valve.

[0103] Optionally, according to the refrigeration capacity of the air conditioner, the refrigeration energy efficiency of the air conditioner is determined, including: EER = Qc / f. Where EER is the refrigeration energy efficiency of the air conditioner and f is the operating power of the air conditioner.

[0104] Specifically, the calculation formula for the refrigerant flow rate of the air conditioner is: m = ηv * ρsuc * N * disp; where ηv is the volumetric efficiency of the compressor, ρsuc is the suction density of the compressor, N is the rotational speed of the compressor, and disp is the cylinder volume of the compressor.

[0105] Optionally, the method for controlling the air conditioner further includes: when the operating state of the compressor is in the frequency-limited state, controlling the spray device to turn on.

[0106] In the embodiments of the present disclosure, when the operating state of the compressor is in a frequency limit state such as high pressure, exhaust temperature, CT current or module temperature, the operating temperature of the outdoor heat exchanger of the outdoor unit is relatively high. Turning on the spraying device can reduce the pressure of the outdoor heat exchanger, thereby reducing the operating frequency of the compressor and ensuring the normal operation of the air conditioner.

[0107] Optionally, when the compressor is running, if the high-pressure pressure is greater than the shutdown pressure, or the exhaust temperature of the compressor is greater than the shutdown temperature, or the CE current is greater than the shutdown current, or the temperature of the electronic control module is greater than the shutdown temperature, the compressor is in a frequency limit state.

[0108] Optionally, the method for controlling the air conditioner further includes: when the condensation pressure of the outdoor heat exchanger is greater than or equal to the pressure threshold and the ambient temperature where the outdoor heat exchanger is located is greater than or equal to the temperature threshold, controlling the spraying device to turn on.

[0109] In the embodiments of the present disclosure, when the external ambient temperature is relatively high and the condensation pressure of the outdoor heat exchanger is relatively high, the heat dissipation of the outdoor heat exchanger is poor. Turning on the spraying device can improve the heat dissipation effect of the outdoor heat exchanger, reduce the condensation pressure of the outdoor heat exchanger, and improve the heat dissipation capacity.

[0110] Optionally, when the condensation pressure of the outdoor heat exchanger is greater than or equal to the pressure threshold, the ambient temperature where the outdoor heat exchanger is located is greater than or equal to the temperature threshold, and the duration reaches the second duration, controlling the spraying device to turn on.

[0111] Optionally, when the dirt blockage rate of the outdoor heat exchanger is greater than or equal to the preset dirt blockage rate, controlling the spraying device to turn on.

[0112] In the embodiments of the present disclosure, when the dirt blockage rate of the outdoor heat exchanger is relatively high, it will also affect the heat dissipation effect of the outdoor heat exchanger. Turning on the spraying device can not only improve the heat dissipation effect of the radiator, but also clean the outdoor heat exchanger, avoid dirt blockage of the outdoor heat exchanger, and improve the heat exchange efficiency of the outdoor heat exchanger.

[0113] The calculation of the heat exchange dirt blockage rate can be obtained by various algorithms. For example, the dirt blockage rate can be judged online by using a heat exchanger dirt blockage model established based on the heat exchanger capacity, subcooling degree and heat exchange temperature difference.

[0114] Optionally, when the number of spraying devices is multiple, when the refrigeration energy efficiency of the air conditioner is less than or equal to the preset energy efficiency and the duration is greater than or equal to the first duration, controlling the spraying devices to turn on includes: when the energy efficiency of the air conditioner is less than or equal to the preset energy efficiency and the duration is greater than or equal to the first duration, controlling all the multiple spraying devices to turn on; after the operating duration of the multiple spraying devices reaches the third duration, controlling the multiple spraying devices to turn on alternately.

[0115] In the embodiments of the present disclosure, when the number of spray devices is multiple, when the processor controls the spray devices to be turned on, the processor controls all the multiple spray devices to be turned on, so as to increase the spray area and improve the heat dissipation effect. After the spray devices spray the solution on the outdoor heat exchanger, the temperature of the outdoor heat exchanger changes sensitively, the temperature of the coils of the outdoor heat exchanger changes sensitively, and the adjustment of the refrigeration energy efficiency of the air conditioner is relatively sensitive. After the multiple spray devices operate for a third duration, the multiple spray devices are controlled to be alternately turned on, which can not only reduce energy consumption but also ensure the heat exchange effect of the outdoor heat exchanger.

[0116] Combined with Figure 7 As shown, the embodiments of the present disclosure also provide a method for controlling an air conditioner, and the method includes:

[0117] S701, when the air conditioner is in the refrigeration mode, the processor obtains the temperature of the coils of the outdoor heat exchanger.

[0118] S702, according to the temperature of the coils of the outdoor heat exchanger, the processor determines the enthalpy before the compressor valve.

[0119] S703, the processor obtains the compressor suction enthalpy and the refrigerant flow rate of the air conditioner;

[0120] S704, according to the enthalpy before the compressor valve, the compressor suction enthalpy and the refrigerant flow rate of the air conditioner, the processor determines the refrigeration capacity of the air conditioner.

[0121] S705, according to the refrigeration capacity of the air conditioner, the processor determines the refrigeration energy efficiency of the air conditioner.

[0122] S706, when the refrigeration energy efficiency of the air conditioner is less than or equal to the preset energy efficiency and the continuous duration is greater than or equal to the first duration, the processor controls all the multiple spray devices to be turned on.

[0123] S707, after the multiple spray devices operate for a third duration, the processor controls the multiple spray devices to be alternately turned on.

[0124] Optionally, when the condensing pressure of the outdoor unit is greater than or equal to the pressure threshold, the ambient temperature where the outdoor heat exchanger is located is greater than or equal to the temperature threshold, and the continuous duration is greater than or equal to the second duration, controlling the spray devices to be turned on includes: when the condensing pressure of the outdoor unit is greater than or equal to the pressure threshold, the ambient temperature where the outdoor heat exchanger is located is greater than or equal to the temperature threshold, and the continuous duration is greater than or equal to the second duration, controlling all the multiple spray devices to be turned on; after the operation duration of the multiple spray devices reaches the fourth duration, controlling the multiple spray devices to be alternately turned on.

[0125] In the embodiments of the present disclosure, when the number of the spraying devices is multiple, when the processor controls the spraying devices to be turned on, the processor controls all the multiple spraying devices to be turned on, so as to increase the spraying area and improve the heat dissipation effect. After the spraying solution of the spraying devices is sprayed on the outdoor heat exchanger, the condensation pressure and temperature of the outdoor heat exchanger change relatively sensitively. After the multiple spraying devices operate for a third time period, the multiple spraying devices are controlled to be alternately turned on, which can not only reduce the energy consumption, but also ensure the heat exchange effect of the outdoor heat exchanger.

[0126] Optionally, when the operating state of the compressor is in the frequency limit state, all the multiple spraying devices are controlled to be turned on, and the multiple spraying devices are controlled to operate at intervals corresponding to the duration of the highest gear. That is to say, the processor controls the multiple spraying devices to increase the spraying amount, reduce the spraying interval, and improve the heat dissipation effect.

[0127] Optionally, when the fouling rate of the outdoor heat exchanger is greater than or equal to the preset fouling rate, the processor controls the multiple spraying devices to be turned on, and controls the multiple spraying devices to operate at intervals corresponding to the duration of the highest gear.

[0128] In the embodiments of the present disclosure, when the outdoor heat exchanger is severely fouled, the multiple spraying devices are controlled to increase the spraying amount, reduce the spraying interval, improve the cleaning effect, and improve the heat dissipation effect.

[0129] Optionally, the multiple spraying devices include a first spraying device and a second spraying device. When the processor controls the multiple spraying devices to be alternately turned on, the processor controls the first spraying device and the second spraying device to be alternately turned on.

[0130] Optionally, the multiple spraying devices are a first spraying group and a second spraying group. The first spraying group includes a first spraying device and a third spraying device, and the second spraying group includes a second spraying device and a fourth spraying device. When the processor controls the multiple spraying devices to be alternately turned on, the spraying devices of the first spraying group and the spraying devices of the second spraying group are alternately turned on. When the first spraying group is turned on, the first spraying device or the third spraying device is turned on. When the second spraying group is turned on, the second spraying device or the fourth spraying device is turned on.

[0131] Optionally, the processor controls the multiple spraying devices to alternately operate at a preset interval duration. The preset interval duration can be determined according to the heat dissipation speed of the outdoor heat exchanger, etc., to ensure the heat dissipation effect of the outdoor heat exchanger while reducing the energy consumption.

[0132] Optionally, when the total duration of the multiple spraying devices being turned on is greater than or equal to a fourth time period, all the multiple spraying devices are controlled to stop working.

[0133] Optionally, the gear of the later turned-on spraying device is determined by the operating parameters of the outdoor heat exchanger when the previously turned-on spraying device ends.

[0134] Optionally, when the compressor exits the frequency limit state and the duration reaches the fifth duration, the processor controls the spraying device to stop working.

[0135] Specifically, when the high-pressure pressure is less than or equal to the shutdown pressure, the exhaust temperature is less than or equal to the shutdown temperature, the current is less than or equal to the shutdown current, and the temperature of the electronic control module is less than or equal to the shutdown temperature, the compressor exits the frequency limit state.

[0136] Optionally, when the refrigeration energy efficiency of the air conditioner is greater than the preset energy efficiency and the duration is greater than or equal to the sixth duration, the processor controls the spraying device to stop working.

[0137] Optionally, when the fouling rate of the outdoor heat exchanger is less than the preset fouling rate and the duration reaches the seventh preset duration, the processor controls the spraying device to stop working.

[0138] Optionally, before obtaining the operating parameters of the air conditioner, the method further includes: obtaining the connection state of the spraying device, and when the spraying device is powered on, obtaining the operating parameters of the air conditioner to ensure that the spraying device is connected, so that the outdoor unit has the spraying condition and prevent errors due to the unconnected spraying device.

[0139] Combined Figure 8 As shown, an embodiment of the present disclosure provides a device for controlling an air conditioner, including a processor 100 and a memory 101. Optionally, the device may further include a communication interface 102 and a bus 103. Among them, the processor 100, the communication interface 102, and the memory 101 can communicate with each other through the bus 103. The communication interface 102 can be used for information transmission. The processor 100 can call the logical instructions in the memory 101 to execute the method for controlling the air conditioner in the above embodiment.

[0140] In addition, when the logical instructions in the above-mentioned memory 101 are implemented in the form of a software functional unit and sold or used as an independent product, they can be stored in a computer-readable storage medium.

[0141] The memory 101, as a computer-readable storage medium, can be used to store software programs and computer-executable programs, such as the program instructions / modules corresponding to the method in the embodiment of the present disclosure. The processor 100 executes functional applications and data processing by running the program instructions / modules stored in the memory 101, that is, implements the method for controlling the air conditioner in the above embodiment.

[0142] The memory 101 may include a program storage area and a data storage area. Among them, the program storage area may store an operating system and application programs required for at least one function; the data storage area may store data created according to the use of the terminal device, etc. In addition, the memory 101 may include a high-speed random access memory and may also include a non-volatile memory.

[0143] An embodiment of the present disclosure provides an air conditioner, including: an air conditioner body, and the above-mentioned device for controlling the air conditioner. The device for controlling the air conditioner is installed on the air conditioner body. The installation relationship described here is not limited to being placed inside the product, but also includes installation connections with other components of the product, including but not limited to physical connections, electrical connections, or signal transmission connections, etc. Those skilled in the art can understand that the device for controlling the air conditioner can be adapted to a feasible product body, thereby implementing other feasible embodiments.

[0144] An embodiment of the present disclosure provides a computer-readable storage medium storing computer-executable instructions, and the computer-executable instructions are set to execute the above-mentioned method for controlling an air conditioner.

[0145] The above-mentioned computer-readable storage medium may be a transient computer-readable storage medium or a non-transient computer-readable storage medium.

[0146] The technical solution of the embodiment of the present disclosure can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes one or more instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in the embodiment of the present disclosure. The foregoing storage medium may be a non-transient storage medium, including: a USB flash drive, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk, or an optical disc, etc., which are various media that can store program codes, or may also be a transient storage medium.

[0147] The above description and the accompanying drawings fully illustrate the embodiments of the present disclosure, enabling those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, process, and other changes. Embodiments merely represent possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. Moreover, the terms used in this application are only for describing embodiments and do not limit the claims. As used in the description of embodiments and claims, unless the context clearly indicates otherwise, the singular forms "a", "an", and "the" are intended to also include the plural forms. Similarly, as used in this application, the term "and / or" refers to any and all possible combinations of one or more of the associated listed items. Additionally, when used in this application, the term "comprise" and its variants "comprises" and / or "comprising" etc. mean the presence of the stated features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or groups of these. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, or apparatus comprising the element. Herein, each embodiment may focus on the differences from other embodiments, and the same or similar parts among the embodiments may be referred to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, the relevant parts may refer to the description of the method part.

[0148] Those skilled in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed in a hardware or software manner may depend on the specific application and design constraints of the technical solution. The skilled person may use different methods for each specific application to implement the described functions, but such implementation should not be considered to exceed the scope of the embodiments of the present disclosure. The skilled person can clearly understand that for the convenience and brevity of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments and will not be elaborated herein.

[0149] In the embodiments disclosed herein, the disclosed methods, products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units can be merely a logical function division. In actual implementation, there can be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Additionally, the displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces. The indirect couplings or communication connections of devices or units can be in electrical, mechanical, or other forms. The units described as separate components may or may not be physically separated. The components shown as units may or may not be physical units, that is, they can be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to implement this embodiment. Additionally, in the embodiments of the present disclosure, the various functional units can be integrated in one processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit.

[0150] The flowcharts and block diagrams in the accompanying drawings illustrate the possible architectures, functions, and operations of systems, methods, and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagram can represent a module, a program segment, or a part of code that contains one or more executable instructions for implementing the specified logical function. In some alternative implementations, the functions marked in the blocks can occur in a different order than marked in the accompanying drawings. For example, two consecutive blocks can actually be executed substantially in parallel, and they can sometimes be executed in the reverse order, which can depend on the functions involved. In the descriptions corresponding to the flowcharts and block diagrams in the accompanying drawings, the operations or steps corresponding to different blocks can also occur in a different order than disclosed in the description. Sometimes, there is no specific order between different operations or steps. For example, two consecutive operations or steps can actually be executed substantially in parallel, and they can sometimes be executed in the reverse order, which can depend on the functions involved. Each block in the block diagram and / or flowchart, and the combination of blocks in the block diagram and / or flowchart, can be implemented by a dedicated hardware-based system for performing the specified functions or actions, or can be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. A method for controlling an air conditioner, characterized in that, The air conditioner includes an outdoor unit and a spraying device, the outdoor unit includes an outdoor heat exchanger, the spraying device corresponds to the outdoor heat exchanger and is used to spray a solution onto the outdoor heat exchanger; the method includes: When the air conditioner is in cooling mode, obtaining operating parameters of the air conditioner; Determine the cooling energy efficiency of the air conditioner based on its operating parameters; When the cooling energy efficiency of the air conditioner is less than or equal to the preset energy efficiency and the duration is greater than or equal to the first duration, the spray device is controlled to turn on.

2. The method according to claim 1, wherein The operating parameters of the air conditioner include the temperature of the outdoor heat exchanger coil. Based on the operating parameters of the air conditioner, the cooling energy efficiency of the air conditioner is determined, including: Determine the enthalpy before the compressor valve based on the temperature of the outdoor heat exchanger coil; Obtain the compressor suction enthalpy and the air conditioner refrigerant flow rate; Determine the cooling capacity of the air conditioner based on the enthalpy before the compressor valve, the compressor suction enthalpy and the refrigerant flow of the air conditioner; Determine the cooling energy efficiency of the air conditioner based on its cooling capacity.

3. The method according to claim 2, wherein Based on the temperature of the outdoor heat exchanger coil, determine the enthalpy before the compressor valve, including: Where Hliq is the enthalpy before the compressor valve, and Tdef is the temperature of the outdoor unit coil.

4. The method according to claim 2, wherein When the outdoor heat exchanger includes multiple low-temperature zones, obtaining the temperature of the outdoor heat exchanger coil includes: Get multiple temperatures corresponding to multiple low-temperature areas of the outdoor unit; The highest temperature among the multiple temperatures is determined to be the temperature of the outdoor heat exchanger coil.

5. The method according to any one of claims 2 to 4, characterized in that, Also includes: When the compressor is in the frequency-limited state, the spray device is controlled to open; or, When the condensing pressure of the outdoor heat exchanger is greater than or equal to the pressure threshold and the ambient temperature of the outdoor heat exchanger is greater than or equal to the temperature threshold, and the duration is greater than or equal to the second duration, the spray device is controlled to open; or, When the dirt and blockage rate of the outdoor heat exchanger is greater than or equal to the preset dirt and blockage rate, the spray device is controlled to open.

6. The method according to claim 5, characterized in that There are multiple spray devices, and the multiple spray devices are arranged at intervals outside the outdoor heat exchanger; When the cooling energy efficiency of the air conditioner is less than or equal to the preset energy efficiency and the duration is greater than or equal to the first duration, controlling the spray device to turn on includes: When the energy efficiency of the air conditioner is less than or equal to the preset energy efficiency and the duration is greater than or equal to the first duration, controlling the plurality of spray devices to be turned on; After the multiple spraying devices have been running for a third time, the multiple spraying devices are controlled to be turned on alternately; or, When the condensing pressure of the outdoor unit is greater than or equal to the pressure threshold and the ambient temperature of the outdoor heat exchanger is greater than or equal to the temperature threshold, and the duration is greater than or equal to the second duration, controlling the spray device to turn on includes: When the condensing pressure of the outdoor unit is greater than or equal to the pressure threshold and the ambient temperature of the outdoor heat exchanger is greater than or equal to the temperature threshold, and the duration is greater than or equal to the second duration, controlling the plurality of spray devices to be turned on; After the operation time of the plurality of spray devices reaches a fourth time period, the plurality of spray devices are controlled to be turned on alternately.

7. A device for controlling an air conditioner, comprising a processor and a memory storing program instructions, characterized in that: The processor is configured to execute the method for controlling an air conditioner according to any one of claims 1 to 6 when running the program instructions.

8. An air conditioner, characterized in that, include: outdoor unit, including an outdoor heat exchanger; The spraying device is located in the middle of at least one side of the outdoor heat exchanger, and includes at least two nozzle groups, and the at least two nozzle groups spray towards both sides of the spraying device; Wherein, one nozzle group includes a plurality of nozzles, and the plurality of nozzles in one nozzle group are arranged in sequence in the vertical direction; and / or, the number of spraying devices is multiple, and the multiple spraying devices are arranged at intervals on the outer side of the outdoor heat exchanger.

9. The air conditioner according to claim 8, characterized in that It further includes: A connecting plate, which is connected between the spraying device and the outdoor unit; Wherein, the connecting plate is of a hollow structure, and / or, the spraying device is slidably connected to the outdoor unit through the connecting plate.

10. The air conditioner according to claim 8, characterized in that It further includes: The device for controlling an air conditioner as described in claim 7.

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