Method and device for controlling air conditioner, air conditioner and computer readable storage medium

Abstract

The invention relates to the technical field of air conditioners, and discloses a method for controlling an air conditioner, which comprises the following steps: when the water level of condensate water is greater than or equal to a preset water level, increasing the suction superheat degree of the air conditioner; and the opening degree of a throttling valve of the air conditioner is adjusted according to the increased air suction superheat degree. When the water level of the condensate water is greater than or equal to the preset water level, the drainage device in the water pan is not smooth in drainage, and a certain degree of stalling phenomenon possibly occurs at the moment. The air suction superheat degree of the air conditioner is increased, and the opening degree of the throttle valve of the air conditioner is adaptively adjusted, so that the refrigerant flow of the system can be reduced, the refrigerating capacity of the air conditioner is reasonably reduced, and generation of condensate water is reduced. Therefore, the condensate water in the water pan can be prevented from overflowing, meanwhile, the poor comfort degree of a user caused by shutdown of the air conditioner can be avoided, and the use experience of the user can be guaranteed. The invention further discloses a device for controlling the air conditioner, the air conditioner and a computer readable storage medium.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioners, for example, to a method and device for controlling an air conditioner, an air conditioner, and a computer-readable storage medium. Background Art

[0002] At present, with the continuous improvement of living standards, air conditioners have become an important household appliance that is indispensable in people's daily lives. When the air conditioner is in refrigeration operation, the evaporator absorbs the heat of the indoor air and cools the indoor air. During this period, condensed water will continue to be generated, and the condensed water will flow into the water receiving pan below the evaporator and be pumped out through the water pump. However, due to the long-term soaking in water, the water receiving pan is prone to breed bacteria and absorb dust. Over time, the water pump will be blocked, resulting in the condensed water cannot be discharged in time. This may cause the condensed water in the water receiving pan to overflow, resulting in problems such as dripping from the ceiling, which seriously affects the user experience. Based on this, the related art proposes a control method for an air conditioner, including: receiving a dirty blockage signal of a dirty blockage of the drain pipe of the water receiving pan sent by a water level monitoring device in the water receiving pan; when receiving a dirty blockage signal of a dirty blockage of the drain pipe of the water receiving pan sent by the water level monitoring device, the air conditioner is controlled to stop running.

[0003] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0004] Although the relevant technology can achieve timely warning after dirt and blockage, directly shutting down the air conditioner has a great impact on the user's cooling experience and the user's comfort is poor.

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0006] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0007] The embodiments of the present disclosure provide a method, device, air conditioner, and computer-readable storage medium for controlling an air conditioner, which can prevent condensed water from overflowing from a water tray, and can also prevent the air conditioner from shutting down and causing poor user comfort, thereby ensuring the user experience.

[0008] In some embodiments, the air conditioner includes an evaporator, and a water receiving pan is provided under the evaporator. The water receiving pan is used to receive the condensed water generated by the evaporator. A drainage device and a detection device are provided in the water receiving pan. The drainage device is used to discharge the condensed water in the water receiving pan, and the detection device is used to detect the condensed water level in the water receiving pan; the method includes: when the condensed water level is greater than or equal to a preset water level, increasing the intake superheat of the air conditioner; and adjusting the throttle valve opening of the air conditioner according to the increased intake superheat.

[0009] In some embodiments, the device includes: a processor and a memory storing program instructions, and the processor is configured to execute the above-mentioned method for controlling an air conditioner when running the program instructions.

[0010] In some embodiments, the air conditioner includes: an evaporator; a water receiving tray, arranged below the evaporator, for receiving condensed water generated by the evaporator; a drainage device, arranged in the water receiving tray, for draining the condensed water in the water receiving tray; a detection device, arranged in the water receiving tray, for detecting the water level of the condensed water in the water receiving tray; the above-mentioned device for controlling the air conditioner is electrically connected to the detection device.

[0011] In some embodiments, the computer-readable storage medium stores program instructions, and when the program instructions are executed, the computer executes the above-mentioned method for controlling the air conditioner.

[0012] The method, device, air conditioner, and computer-readable storage medium for controlling an air conditioner provided in the embodiments of the present disclosure can achieve the following technical effects:

[0013] In the embodiment of the present disclosure, along with the cooling operation of the air conditioner, the drainage device continues to operate to continuously discharge the condensed water in the water receiving tray. When the condensed water level is greater than or equal to the preset water level, it indicates that the drainage device is not draining smoothly, and a certain degree of stalling may have occurred at this time. Therefore, the embodiment of the present disclosure increases the suction superheat of the air conditioner and adaptively adjusts the throttle valve opening of the air conditioner, so as to reduce the refrigerant flow of the system, and then reasonably reduce the cooling capacity of the air conditioner, which is beneficial to reduce the generation of condensed water. Therefore, the embodiment of the present disclosure can avoid the overflow of condensed water in the water receiving tray, and at the same time can avoid the shutdown of the air conditioner causing poor user comfort, which is beneficial to ensure the user experience.

[0014] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0016] Figure 1 is a schematic diagram of a method for controlling an air conditioner provided by an embodiment of the present disclosure;

[0017] Figure 2 is a schematic diagram of another method for controlling an air conditioner provided by an embodiment of the present disclosure;

[0018] Figure 3 is a schematic diagram of another method for controlling an air conditioner provided by an embodiment of the present disclosure;

[0019] Figure 4 is a schematic diagram of another method for controlling an air conditioner provided by an embodiment of the present disclosure;

[0020] Figure 5 is a schematic diagram of a device for controlling an air conditioner provided by an embodiment of the present disclosure;

[0021] Figure 6 It is a schematic diagram of an air conditioner provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0022] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0023] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure 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 the terms used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0024] Unless otherwise stated, the term "plurality" means two or more.

[0025] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0026] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0027] The term "correspondence" may refer to an association relationship or a binding relationship. The correspondence between A and B means that there is an association relationship or a binding relationship between A and B.

[0028] At present, with the continuous improvement of living standards, air conditioners have become an important household appliance that is indispensable in people's daily lives. When the air conditioner is in refrigeration operation, the evaporator absorbs the heat of the indoor air and cools the indoor air. During this period, condensed water will continue to be generated, and the condensed water will flow into the water receiving pan below the evaporator and be pumped out through the water pump. However, due to the long-term soaking in water, the water receiving pan is prone to breed bacteria and absorb dust. Over time, the water pump will be blocked, resulting in the condensed water cannot be discharged in time. This may cause the condensed water in the water receiving pan to overflow, resulting in problems such as dripping from the ceiling, which seriously affects the user experience. Based on this, the related art proposes a control method for an air conditioner, including: receiving a dirty blockage signal of a dirty blockage of the drain pipe of the water receiving pan sent by a water level monitoring device in the water receiving pan; when receiving a dirty blockage signal of a dirty blockage of the drain pipe of the water receiving pan sent by the water level monitoring device, the air conditioner is controlled to stop running.

[0029] Although the relevant technology can achieve timely warning after dirt and blockage, directly shutting down the air conditioner has a great impact on the user's cooling experience and the user's comfort is poor.

[0030] In the disclosed embodiment, the air conditioner includes an evaporator, a water receiving pan, a drainage device and a detection device. The water receiving pan is arranged below the evaporator to receive the condensed water generated by the evaporator. The drainage device is arranged in the water receiving pan to discharge the condensed water in the water receiving pan. The detection device is arranged in the water receiving pan to detect the water level of the condensed water in the water receiving pan. In this way, as the air conditioner is in cooling operation, the drainage device continues to operate, so that the condensed water in the water receiving pan can be continuously discharged.

[0031] Optionally, the drainage device includes a water pump and a drainage pipeline. In this way, the embodiment of the present disclosure can continuously discharge the condensed water in the water receiving tray through the drainage pipeline under the action of the water pump.

[0032] Optionally, the detection device is a float switch, so that the condensed water level in the water receiving tray can be sensed, which is conducive to timely opening of corresponding control.

[0033] Optionally, the detection device is a liquid level sensor. In this way, the condensed water level in the water receiving tray can be detected more accurately, which is conducive to timely opening of corresponding control.

[0034] Optionally, the air conditioner further comprises a device for controlling the air conditioner, which is electrically connected to the detection device. In this way, the embodiment of the present disclosure can execute a corresponding control method through the device to reduce the generation of condensed water when the condensed water level is greater than or equal to a preset water level, thereby preventing the condensed water in the water receiving tray from overflowing.

[0035] Combination Figure 1 As shown, the embodiment of the present disclosure provides a method for controlling an air conditioner, comprising:

[0036] S101, when the condensed water level is greater than or equal to a preset water level, the processor increases the suction superheat of the air conditioner.

[0037] S102: The processor adjusts the throttle valve opening of the air conditioner according to the increased suction air superheat.

[0038] According to the method for controlling an air conditioner provided by the embodiment of the present disclosure, the drainage device continues to operate as the air conditioner is in cooling operation, so as to continuously discharge the condensed water in the water receiving tray. When the condensed water level is greater than or equal to the preset water level, it indicates that the drainage device is not draining smoothly, and a certain degree of stalling may have occurred at this time. Therefore, the embodiment of the present disclosure increases the suction superheat of the air conditioner and adaptively adjusts the throttle valve opening of the air conditioner, so as to reduce the refrigerant flow of the system, thereby reasonably reducing the cooling capacity of the air conditioner, which is beneficial to reducing the generation of condensed water. Therefore, the embodiment of the present disclosure can avoid the overflow of condensed water in the water receiving tray, and at the same time can avoid the poor user comfort caused by the shutdown of the air conditioner, which is beneficial to ensuring the user experience.

[0039] Optionally, the processor increases the air intake superheat of the air conditioner, including: the processor increases the air intake superheat of the air conditioner according to the duration that the condensate water level is greater than or equal to the preset water level. In this way, the embodiment of the present disclosure obtains the duration that the condensate water level is greater than or equal to the preset water level to determine the risk of the drainage device being blocked. The longer the duration, the greater the risk of the drainage device being blocked, and the higher the possibility of condensate overflowing from the water tray. Therefore, the embodiment of the present disclosure appropriately increases the air intake superheat of the air conditioner according to the duration, so that the refrigerant flow of the system can be reduced more reasonably. While reducing the generation of condensate, it can also avoid excessive fluctuations in cooling capacity that cause user discomfort.

[0040] and / or,

[0041] Optionally, the processor increases the suction superheat of the air conditioner, including: the processor increases the suction superheat of the air conditioner according to the water level difference between the condensed water level and the preset water level. In this way, the embodiment of the present disclosure obtains the water level difference between the condensed water level and the preset water level to determine the risk of the drainage device being blocked. The larger the water level difference, the greater the risk of the drainage device being blocked, and the higher the possibility of condensed water overflowing from the water tray. Therefore, the embodiment of the present disclosure appropriately increases the suction superheat of the air conditioner according to the water level difference, thereby being able to more reasonably reduce the refrigerant flow of the system, while reducing the generation of condensed water, and also avoiding excessive fluctuations in cooling capacity that cause discomfort to users.

[0042] Optionally, the processor increases the suction superheat of the air conditioner according to the duration of the condensed water level being greater than or equal to the preset water level, including: the processor calculates SH A =SH0+(t1 / t max )×SH P1 , obtain the first target value of the suction superheat; the processor increases the suction superheat of the air conditioner to the first target value. A is the first target value of suction superheat, SH0 is the initial value of suction superheat, t1 is the duration of the condensate water level being greater than or equal to the preset water level, t max is the duration threshold, SH P1 is the first compensation value of the suction superheat. In this way, the embodiment of the present disclosure calculates the first target value after the suction superheat increases through the above formula, and can reasonably limit the compensation amount of the suction superheat according to the ratio of the duration of the condensate water level being greater than or equal to the preset water level and the duration threshold. In this way, the refrigerant flow of the system can be reduced more reasonably, and while reducing the generation of condensate, it can also avoid excessive fluctuations in cooling capacity causing discomfort to users.

[0043] Optionally, the duration threshold t max It can be obtained through experimental tests. Specifically, the air conditioner is operated at rated power for continuous cooling for a duration threshold t max It is the time taken for the drainage device to continuously operate to drain the water tray from full to empty. Preferably, the duration threshold t max It can be set to 40s to determine whether the drainage device is seriously blocked. Duration threshold t max It can also be adjusted according to actual user needs, or set to any other reasonable value such as 30s or 60s.

[0044] Optionally, the first suction gas superheat compensation value SH P1 It can be set according to indoor environmental parameters. Specifically, when the indoor ambient temperature is less than or equal to the preset temperature, a relatively comfortable low temperature environment has been created indoors, so a relatively large first compensation value SH can be set. P11 , so as to further reduce the cooling capacity of the air conditioner, which is conducive to reducing the generation of condensed water. When the indoor ambient temperature is greater than the preset temperature, a relatively small first compensation value SH can be set. P12 , so as to ensure that the condensed water in the water tray does not overflow, and at the same time, it can better guarantee the user's cooling experience. The indoor environmental parameter can also be the indoor environmental humidity. You can refer to the corresponding process in other embodiments, which will not be repeated here. Preferably, the first compensation value SH of the suction superheat P1 It can be set to 10℃ to reasonably limit the compensation amount of suction superheat. The first compensation value SH of suction superheat P1It can also be adjusted according to actual user needs, or set to any other reasonable value such as 5℃ or 12℃.

[0045] Optionally, the processor increases the suction superheat of the air conditioner according to the water level difference between the condensed water level and the preset water level, including: the processor calculates SH B =SH0+(h1 / h max )×SH P2 , obtain the second target value of the suction superheat; the processor increases the suction superheat of the air conditioner to the second target value. B is the second target value of suction superheat, SH0 is the initial value of suction superheat, h1 is the water level difference between the condensate water level and the preset water level, h max is the water level difference threshold, SH P2 is the second compensation value of the suction superheat. In this way, the embodiment of the present disclosure calculates the second target value after the suction superheat increases through the above formula, and can reasonably limit the compensation amount of the suction superheat according to the ratio of the water level difference between the condensed water level and the preset water level and the water level difference threshold. In this way, the refrigerant flow of the system can be reduced more reasonably, and while reducing the generation of condensed water, it can also avoid excessive fluctuations in cooling capacity that cause discomfort to users.

[0046] Optionally, the water level difference threshold h max It can be set according to the water tray configuration parameters. Specifically, the water level difference threshold h max It can be the difference between the total water level of the water tray and the preset water level. Preferably, the water level difference threshold h max It can be set to 5cm to determine whether the drainage device is seriously blocked. max It can also be adjusted according to actual user needs, and can be set to any other reasonable value such as 4cm or 6cm.

[0047] Optionally, the second compensation value SH of suction gas superheat P2 It can be set according to indoor environmental parameters. Specifically, when the indoor environmental humidity is greater than or equal to the preset humidity, condensation is likely to occur and more condensed water is generated, so a relatively large second compensation value SH can be set. P21 , in order to further reduce the cooling capacity of the air conditioner, which is conducive to balancing the amount of condensed water generated. When the indoor ambient humidity is lower than the preset humidity, a relatively small second compensation value SH can be set. P22 , so as to ensure that the condensed water in the water tray does not overflow, and at the same time, it can better guarantee the user's cooling experience. The indoor environmental parameter can also be the indoor ambient temperature. You can refer to the corresponding process in other embodiments, which will not be repeated here. Preferably, the second compensation value SH of the suction superheat P2It can be set to 10℃ to reasonably limit the compensation amount of suction superheat. The second compensation value SH of suction superheat P2 It can also be adjusted according to actual user needs, or set to any other reasonable value such as 5℃ or 12℃.

[0048] Optionally, the processor may periodically increase the air intake superheat of the air conditioner. In this way, the embodiment of the present disclosure can repeat the above steps at intervals of a preset time, thereby gradually increasing the air intake superheat of the air conditioner to avoid over-rapid adjustment affecting the stability of the air conditioner operation.

[0049] Optionally, the processor adjusts the throttle valve opening of the air conditioner according to the increased suction superheat, including: the processor adjusts the throttle valve opening of the air conditioner according to a PID (Proportional Integral Derivative) algorithm to stabilize the increased suction superheat. In this way, the embodiment of the present disclosure can achieve accurate adjustment of the throttle valve opening, so that the suction superheat of the air conditioner can gradually stabilize near the increased target value.

[0050] Combination Figure 2 As shown, the embodiment of the present disclosure provides another method for controlling an air conditioner, comprising:

[0051] S201: When the condensed water level is greater than or equal to a preset water level, the processor increases the suction superheat of the air conditioner.

[0052] S202: The processor adjusts the throttle valve opening of the air conditioner according to the increased suction air superheat.

[0053] S203: When the condensed water level meets a preset dirty and blocked condition, the processor limits the throttle valve opening of the air conditioner.

[0054] According to the method for controlling the air conditioner provided by the embodiment of the present disclosure, the drainage device continues to operate with the cooling operation of the air conditioner to continuously discharge the condensed water in the water receiving tray. When the condensed water level is greater than or equal to the preset water level, it indicates that the drainage device is not draining smoothly, and a certain degree of stalling may occur at this time. Therefore, the embodiment of the present disclosure increases the suction superheat of the air conditioner and adaptively adjusts the throttle valve opening of the air conditioner, so as to reduce the refrigerant flow of the system, thereby reasonably reducing the cooling capacity of the air conditioner, which is conducive to reducing the generation of condensed water. Further, when the condensed water level meets the preset dirty blocking condition, it indicates that the drainage device is stalled more seriously. Therefore, the embodiment of the present disclosure further limits the throttle valve opening of the air conditioner to ensure that the refrigerant flow of the system is not too large, so as to suppress the generation of condensed water more. Therefore, the embodiment of the present disclosure can avoid the overflow of condensed water in the water receiving tray, and at the same time can avoid the poor user comfort caused by the shutdown of the air conditioner, which is conducive to ensuring the user experience.

[0055] Optionally, the preset dirty and blocked condition includes: the duration of the condensed water level being greater than or equal to the preset water level is greater than or equal to a duration threshold. Thus, when the duration is greater than or equal to the duration threshold, it indicates that the drainage device is seriously blocked and the condensed water in the water tray cannot be effectively discharged in a short time. Therefore, it is determined that the preset dirty and blocked condition is met at this time, and the air conditioner performs further control to further suppress the generation of condensed water, thereby facilitating the avoidance of condensed water overflowing from the water tray.

[0056] and / or,

[0057] Optionally, the preset dirty and blocked condition includes: the water level difference between the condensed water level and the preset water level is greater than or equal to the water level difference threshold. Thus, when the water level difference is greater than or equal to the water level difference threshold, it indicates that the drainage device is seriously blocked, and the condensed water level in the water receiving tray is still rising or even about to overflow. Therefore, it is judged that the preset dirty and blocked condition is met at this time, and the air conditioner performs further control to further suppress the generation of condensed water, thereby facilitating the avoidance of condensed water overflowing from the water receiving tray.

[0058] Optionally, the processor limits the throttle valve opening of the air conditioner, including: the processor controls the throttle valve opening of the air conditioner to be less than or equal to a preset limit opening. In this way, when the preset dirty blockage condition is met, the embodiment of the present disclosure controls the throttle valve opening of the air conditioner to always be less than the preset limit opening, thereby ensuring that the refrigerant flow of the system is not too large, so as to further suppress the generation of condensed water. As a result, the embodiment of the present disclosure can better prevent the condensed water in the water receiving tray from overflowing.

[0059] Combination Figure 3 As shown, the embodiment of the present disclosure provides another method for controlling an air conditioner, comprising:

[0060] S301: When the condensed water level is greater than or equal to a preset water level, the processor increases the suction superheat of the air conditioner.

[0061] S302: The processor adjusts the throttle valve opening of the air conditioner according to the increased suction air superheat.

[0062] S303: When the condensed water level meets a preset dirty and blocked condition, the processor limits the throttle valve opening of the air conditioner.

[0063] S304, the processor reduces the operating frequency of the compressor of the air conditioner. And / or,

[0064] S305: The processor increases the speed of the internal fan of the air conditioner.

[0065] According to the method for controlling an air conditioner provided by the embodiment of the present disclosure, the drainage device is continuously operated with the cooling operation of the air conditioner to continuously discharge the condensed water in the water receiving tray. When the condensed water level is greater than or equal to the preset water level, it indicates that the drainage device is not draining smoothly, and a certain degree of stalling may occur at this time. Therefore, the embodiment of the present disclosure increases the suction superheat of the air conditioner and adaptively adjusts the throttle valve opening of the air conditioner, so as to reduce the refrigerant flow of the system, thereby reasonably reducing the cooling capacity of the air conditioner, which is conducive to reducing the generation of condensed water. Further, when the condensed water level meets the preset dirty blocking condition, it indicates that the drainage device is stalled more seriously. Therefore, the embodiment of the present disclosure further limits the throttle valve opening of the air conditioner to ensure that the refrigerant flow of the system is not too large, so as to suppress the generation of condensed water more. In addition, the embodiment of the present disclosure also reduces the operating frequency of the compressor, which can reduce the refrigerant supply and suppress the generation of condensed water. And the embodiment of the present disclosure also increases the speed of the internal fan of the air conditioner, which can promote the evaporation of condensed water and reduce the amount of condensed water entering the water receiving tray. Therefore, the disclosed embodiment can prevent condensed water from overflowing from the water tray, and can also prevent the air conditioner from shutting down and causing poor user comfort, which is beneficial to ensuring the user experience.

[0066] Optionally, the processor reduces the compressor operating frequency of the air conditioner, including: the processor determines a target reduction value of the compressor operating frequency according to indoor environmental parameters; the processor reduces the compressor operating frequency of the air conditioner according to the target reduction value. The indoor environmental parameters include indoor environmental temperature and / or indoor environmental humidity. In this way, the embodiment of the present disclosure can reasonably limit the target reduction value of the compressor operating frequency in combination with indoor environmental information, thereby more reasonably reducing the compressor operating frequency of the air conditioner to avoid over-adjustment affecting the user's cooling experience.

[0067] Optionally, the processor increases the speed of the indoor fan of the air conditioner, including: the processor determines a target increase value of the speed of the indoor fan according to indoor environmental parameters; the processor increases the speed of the indoor fan of the air conditioner according to the target increase value. The indoor environmental parameters include indoor environmental temperature and / or indoor environmental humidity. In this way, the embodiment of the present disclosure can reasonably limit the target increase value of the speed of the indoor fan in combination with the indoor environmental information, thereby more reasonably increasing the speed of the indoor fan of the air conditioner to avoid excessive adjustment affecting the cooling experience of the user.

[0068] Combination Figure 4 As shown, the embodiment of the present disclosure provides another method for controlling an air conditioner, comprising:

[0069] S401: When the condensed water level is greater than or equal to a preset water level, the processor increases the suction superheat of the air conditioner.

[0070] S402: The processor adjusts the throttle valve opening of the air conditioner according to the increased suction air superheat.

[0071] S403: When the condensed water level meets a preset dirty and blocked condition, the processor limits the throttle valve opening of the air conditioner.

[0072] S404, the processor sends a cleaning reminder message.

[0073] According to the method for controlling an air conditioner provided by the embodiment of the present disclosure, the drainage device is continuously operated with the cooling operation of the air conditioner to continuously discharge the condensed water in the water receiving tray. When the condensed water level is greater than or equal to the preset water level, it indicates that the drainage device is not draining smoothly, and a certain degree of stalling may occur at this time. Therefore, the embodiment of the present disclosure increases the suction superheat of the air conditioner and adaptively adjusts the throttle valve opening of the air conditioner, so as to reduce the refrigerant flow of the system, thereby reasonably reducing the cooling capacity of the air conditioner, which is conducive to reducing the generation of condensed water. Further, when the condensed water level meets the preset dirty blocking condition, it indicates that the drainage device is stalled more seriously. Therefore, the embodiment of the present disclosure further limits the throttle valve opening of the air conditioner to ensure that the refrigerant flow of the system is not too large, so as to suppress the generation of condensed water more. In addition, the embodiment of the present disclosure also sends a cleaning reminder message to remind the user to clean the drainage device in time after using the air conditioner, which is conducive to the subsequent normal cooling operation of the air conditioner. Therefore, the embodiment of the present disclosure can avoid the overflow of condensed water in the water receiving tray, and can also avoid the poor user comfort caused by the shutdown of the air conditioner, which is conducive to ensuring the user's use experience.

[0074] Combination Figure 5 As shown, the embodiment of the present disclosure provides a device 500 for controlling an air conditioner, including a processor 501 and a memory 502. Optionally, the device 500 may also include a communication interface 503 and a bus 504. The processor 501, the communication interface 503, and the memory 502 may communicate with each other through the bus 504. The communication interface 503 may be used for information transmission. The processor 501 may call the logic instructions in the memory 502 to execute the method for controlling the air conditioner of the above embodiment.

[0075] In addition, the logic instructions in the memory 502 described above can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent product.

[0076] The memory 502 is a computer-readable storage medium that can be used to store software programs and computer executable programs, such as program instructions / modules corresponding to the method in the embodiment of the present disclosure. The processor 501 executes the function application and data processing by running the program instructions / modules stored in the memory 502, that is, the method for controlling the air conditioner in the above embodiment is implemented.

[0077] The memory 502 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application 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 502 may include a high-speed random access memory and may also include a non-volatile memory.

[0078] Combination Figure 6 As shown, the embodiment of the present disclosure provides an air conditioner, including: an air conditioner body 600, and the above-mentioned device 500 for controlling the air conditioner. The device 500 for controlling the air conditioner is installed on the air conditioner body 600. The installation relationship described here is not limited to being placed inside the air conditioner body 600, but also includes installation connections with other components of the air conditioner, including but not limited to physical connections, electrical connections or signal transmission connections, etc. It can be understood by those skilled in the art that the device 500 for controlling the air conditioner can be adapted to a feasible product body, thereby realizing other feasible embodiments.

[0079] An embodiment of the present disclosure provides a computer-readable storage medium storing computer-executable instructions, wherein the computer-executable instructions are configured to execute the above-mentioned method for controlling an air conditioner.

[0080] The technical solution of the embodiment of the present disclosure can be embodied in the form of a software product, which 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 aforementioned storage medium may be a non-transient storage medium, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a disk or an optical disk, and other media that can store program codes.

[0081] The above description and the accompanying drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural, logical, electrical, process and other changes. The embodiments represent only possible changes. Unless explicitly required, separate components and functions are optional, and the order of operation may vary. The parts and features of some embodiments may be included in or replace the parts and features of other embodiments. Moreover, the words used in this application are only used to describe the embodiments and are not used to limit the claims. As used in the description of the embodiments and the claims, unless the context clearly indicates, the singular forms of "a", "an" and "the" are intended to include plural forms as well. Similarly, the term "and / or" as used in this application refers to any and all possible combinations of listings containing one or more associated ones. In addition, when used in the present application, the term "comprise" and its variants "comprises" and / or comprising refer to the presence of 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 thereof. In the absence of further restrictions, the elements defined by the sentence "comprising a ..." do not exclude the presence of other identical elements in the process, method or device comprising the elements. In this article, each embodiment may focus on the differences from other embodiments, and the same and similar parts between the various embodiments may refer to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, then the relevant parts can refer to the description of the method part.

[0082] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software may depend on the specific application and design constraints of the technical solution. The technicians may use different methods for each specific application to implement the described functions, but such implementations should not be considered to exceed the scope of the embodiments of the present disclosure. The technicians may clearly understand that, for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above may refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here.

[0083] In the embodiments disclosed herein, the disclosed methods and products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units can be only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between each other shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms. The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to implement this embodiment. In addition, each functional unit in the embodiment of the present disclosure may be integrated in a processing unit, or each unit may exist physically alone, or two or more units may be integrated in one unit.

[0084] The flowchart and block diagram in the accompanying drawings show the possible architecture, function and operation of the system, method and computer program product according to the embodiment of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of the code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. In some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. In the description corresponding to the flowchart and the block diagram in the accompanying drawings, the operations or steps corresponding to different boxes can also occur in a different order from the order disclosed in the description, and 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 opposite order, which can depend on the functions involved. Each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, may be implemented by a dedicated hardware-based system that performs the specified functions or actions, or may 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 comprises an evaporator, a water receiving pan is provided below the evaporator, the water receiving pan is used to receive condensed water generated by the evaporator, a drainage device and a detection device are provided in the water receiving pan, the drainage device is used to discharge the condensed water in the water receiving pan, and the detection device is used to detect the water level of the condensed water in the water receiving pan; the method comprises: When the condensate water level is greater than or equal to the preset water level, the air intake superheat of the air conditioner is increased; According to the increased suction air superheat, the throttle valve opening of the air conditioner is adjusted.

2. The method according to claim 1, characterized in that Increase the air intake superheat of the air conditioner, including: According to the duration of time when the condensed water level is greater than or equal to the preset water level, increasing the suction superheat of the air conditioner; and / or, The air intake superheat of the air conditioner is increased according to the water level difference between the condensed water level and the preset water level.

3. The method according to claim 2, characterized in that According to the duration of the condensed water level being greater than or equal to the preset water level, the suction air superheat of the air conditioner is increased, including: Calculate SH A =SH0+(t1 / t max )×SH P1 , obtain the first target value of suction air superheat; increasing the suction air superheat of the air conditioner to a first target value; Among them, SH A is the first target value of suction superheat, SH0 is the initial value of suction superheat, t1 is the duration of the condensate water level being greater than or equal to the preset water level, t max is the duration threshold, SH P1 It is the first compensation value of suction gas superheat.

4. The method according to claim 2, characterized in that: According to the water level difference between the condensed water level and the preset water level, the suction superheat of the air conditioner is increased, including: Calculate SH B =SH0+(h1 / h max )×SH P2 , obtaining a second target value of suction air superheat; increasing the suction air superheat of the air conditioner to a second target value; Among them, SH B is the second target value of suction superheat, SH0 is the initial value of suction superheat, h1 is the water level difference between the condensate water level and the preset water level, h max is the water level difference threshold, SH P2 It is the second compensation value of suction gas superheat.

5. The method according to any one of claims 1 to 4, characterized in that: After adjusting the throttle valve opening of the air conditioner according to the increased suction superheat, the following steps are also included: When the condensed water level meets the preset dirty and clogging conditions, the throttle valve opening of the air conditioner is limited.

6. The method according to claim 5, characterized in that The preset dirty and blocking conditions include: The duration of the condensed water level being greater than or equal to the preset water level is greater than or equal to the duration threshold; and / or, The water level difference between the condensed water level and the preset water level is greater than or equal to the water level difference threshold.

7. The method according to claim 5, characterized in that After limiting the throttle valve opening of the air conditioner, it also includes: reducing the frequency of operation of the air conditioner compressor; and / or, Increase the air conditioner's internal fan speed.

8. The method according to claim 5, characterized in that When the condensate water level meets the preset dirty and blocking conditions, it also includes: Send cleaning reminder messages.

9. 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 8 when running the program instructions.

10. An air conditioner, characterized in that: include: Evaporator; The water receiving tray is located below the evaporator and is used to receive the condensed water generated by the evaporator; A drainage device is provided in the water receiving tray and is used to discharge the condensed water in the water receiving tray; A detection device, arranged in the water receiving tray, for detecting the water level of condensed water in the water receiving tray; The device for controlling an air conditioner as claimed in claim 9, electrically connected to the detection device.

11. A computer-readable storage medium storing program instructions, characterized in that: When the program instructions are executed, the computer is used to execute the method for controlling an air conditioner according to any one of claims 1 to 8.

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