Self-cleaning control method and device for air conditioner, air conditioner, medium

Abstract

The application relates to the technical field of air conditioners, and discloses a self-cleaning control method for an air conditioner, which comprises the following steps: in the case that self-cleaning is completed, in response to a start-up instruction, the number of times that the air conditioner continuously runs in a target mode is acquired, the target mode comprising a refrigeration mode or a heating mode; according to the number of times, a target heat exchange amount attenuation rate is determined; and according to the target heat exchange amount attenuation rate, a start-up strategy for executing a self-cleaning mode is determined. The method can accurately judge the change of the heat exchange performance of the air conditioner, improve the refrigeration / heating efficiency of the indoor heat exchanger, and thus reduce the power consumption of the whole machine. The application further discloses a self-cleaning control device for an air conditioner, an air conditioner and a medium.

Description

Technical Field

[0001] This application relates to the field of air conditioner technology, for example to a self-cleaning control method and device for air conditioners, an air conditioner, and a medium. Background Technology

[0002] Currently, all existing air conditioners are equipped with a self-cleaning function. During use, users can control the air conditioner to perform the self-cleaning operation by operating the self-cleaning mode on the remote control.

[0003] To achieve intelligent self-cleaning operation, a self-cleaning control method for multi-split air conditioners is disclosed. This method controls the automatic cleaning of multi-split air conditioners, which include an outdoor unit and multiple indoor units. The control method includes: acquiring the current of multiple motors of the indoor fan at the same speed after multiple consecutive startups of the indoor units; calculating the current attenuation rate based on the multiple motor currents; and controlling the self-cleaning of the multi-split air conditioner based on a preset attenuation rate and the current attenuation rates of the multiple indoor units. The calculation of the current attenuation rate based on the multiple motor currents and the control of the self-cleaning of the multi-split air conditioner based on the preset attenuation rate and the current attenuation rates of the multiple indoor units includes: comparing multiple current attenuation rates of the multiple indoor units and obtaining the maximum current attenuation rate; and controlling the self-cleaning of the indoor unit corresponding to the maximum current attenuation rate based on the maximum current attenuation rate and the preset attenuation rate. A higher current attenuation rate indicates a more severe degree of dirt accumulation in the indoor unit. When dirt accumulation occurs in the indoor unit, foreign matter (such as dust) adhering to the surface of the indoor heat exchanger affects the current value of the indoor fan.

[0004] The relevant technology can indirectly determine the dirt and blockage status of the indoor heat exchanger by measuring the current of multiple motors running at the same speed in the indoor fan, and control the multi-split air conditioner to perform self-cleaning based on the dirt and blockage status of the indoor heat exchanger.

[0005] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art:

[0006] The relevant technology cannot accurately determine the changes in the heat exchange performance of an air conditioner based solely on the dirt and blockage of the indoor heat exchanger, which will reduce the cooling / heating efficiency of the indoor heat exchanger and thus increase the power consumption of the entire unit.

[0007] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0008] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0009] This disclosure provides a self-cleaning control method, apparatus, air conditioner, and medium for air conditioners, to accurately determine changes in the heat exchange performance of the air conditioner, improve the cooling / heating efficiency of the indoor heat exchanger, and thereby reduce the overall power consumption of the unit.

[0010] In some embodiments, the method includes: upon completion of self-cleaning, in response to a power-on command, acquiring the number of times the air conditioner has continuously operated in a target mode, the target mode including a cooling mode or a heating mode; determining a target heat exchange attenuation rate based on the number of times; and determining a startup strategy for executing the self-cleaning mode based on the target heat exchange attenuation rate.

[0011] In some embodiments, the apparatus includes a processor and a memory storing program instructions, the processor being configured to execute, when running the program instructions, the self-cleaning control method for an air conditioner as described above.

[0012] In some embodiments, the air conditioner includes: an air conditioner body; and a self-cleaning control device for an air conditioner as described above, which is installed on the air conditioner body.

[0013] In some embodiments, the storage medium stores program instructions that, when executed, perform the self-cleaning control method for an air conditioner as described above.

[0014] The self-cleaning control method, apparatus, air conditioner, and medium for air conditioners provided in this disclosure can achieve the following technical effects:

[0015] In this embodiment, when the air conditioner receives a start-up command after completing self-cleaning, the number of times the air conditioner has continuously operated in cooling mode or heating mode is first obtained. Then, based on the number of times, a target heat exchange attenuation rate is determined to understand the change in the air conditioner's heat exchange performance. Finally, a startup strategy for executing the self-cleaning mode is determined based on the target heat exchange attenuation rate. Therefore, this embodiment, after accurately understanding the change in the air conditioner's heat exchange performance, can determine the startup strategy for executing the self-cleaning mode based on the change in heat exchange performance to achieve self-cleaning of the air conditioner, thereby effectively improving the cooling / heating efficiency of the indoor heat exchanger and reducing overall power consumption.

[0016] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0017] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0018] Figure 1 This is a schematic diagram of a self-cleaning control method for an air conditioner provided in an embodiment of this disclosure;

[0019] Figure 2 This is a schematic diagram of another self-cleaning control method for an air conditioner provided in an embodiment of this disclosure;

[0020] Figure 3 This is a schematic diagram of another self-cleaning control method for an air conditioner provided in an embodiment of this disclosure;

[0021] Figure 4 This is a schematic diagram of another self-cleaning control method for an air conditioner provided in an embodiment of this disclosure;

[0022] Figure 5 This is a schematic diagram of another self-cleaning control method for an air conditioner provided in an embodiment of this disclosure;

[0023] Figure 6 This is a schematic diagram of another self-cleaning control method for an air conditioner provided in an embodiment of this disclosure;

[0024] Figure 7 This is an application illustration of an embodiment of the present disclosure;

[0025] Figure 8 This is a schematic diagram of a self-cleaning control device for an air conditioner provided in an embodiment of this disclosure;

[0026] Figure 9 This is a schematic diagram of another self-cleaning control device for an air conditioner provided in an embodiment of this disclosure;

[0027] Figure 10 This is a schematic diagram of an air conditioner provided in an embodiment of this disclosure. Detailed Implementation

[0028] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full 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 simplified in their depiction to simplify the drawings.

[0029] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure 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 can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0030] Unless otherwise stated, the term "multiple" means two or more.

[0031] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0032] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0033] The term "correspondence" can refer to an association or binding relationship. The correspondence between A and B means that there is an association or binding relationship between A and B.

[0034] Combination Figure 1 As shown in the figure, this disclosure provides a self-cleaning control method for an air conditioner, including:

[0035] S01, after completing self-cleaning, the processor responds to the power-on command and obtains the number of times the air conditioner has continuously run in the target mode, which includes either cooling mode or heating mode.

[0036] S02, the processor determines the target heat exchange decay rate based on the number of cycles.

[0037] In this step, the number of runs is positively correlated with the heat exchange attenuation rate. Specifically, the more times the air conditioner runs continuously in the target mode, the greater the heat exchange attenuation rate. Furthermore, the heat exchange attenuation rate reflects the air conditioner's heat exchange performance. A larger heat exchange attenuation rate indicates a faster decline in the air conditioner's heat exchange performance, while a smaller rate indicates a slower decline.

[0038] S03, the processor determines the startup strategy for executing the self-cleaning mode based on the target heat exchange attenuation rate.

[0039] The self-cleaning control method for air conditioners provided in this disclosure, upon receiving a start-up command after the air conditioner has completed self-cleaning, first obtains the number of times the air conditioner has continuously operated in cooling mode or heating mode. Then, based on the number of times, a target heat exchange attenuation rate is determined to understand the change in the air conditioner's heat exchange performance. Finally, a startup strategy for executing the self-cleaning mode is determined based on the target heat exchange attenuation rate. Therefore, after accurately understanding the change in the air conditioner's heat exchange performance, this disclosure can determine the startup strategy for executing the self-cleaning mode based on the change in heat exchange performance to achieve self-cleaning of the air conditioner, thereby effectively improving the cooling / heating efficiency of the indoor heat exchanger and reducing overall power consumption.

[0040] Furthermore, when the heat exchange performance of an air conditioner declines, performing self-cleaning can improve its performance. Typically, factors affecting air conditioner heat exchange performance include foreign matter adhering to the surface of the indoor heat exchanger, and prolonged operation in cooling or heating mode. Current control methods can only identify foreign matter adhering to the indoor heat exchanger surface, but cannot accurately identify changes in heat exchange performance caused by prolonged operation in cooling or heating mode, thus failing to trigger self-cleaning. Therefore, this embodiment not only improves the cooling / heating efficiency of the indoor heat exchanger but also provides timely and effective cleaning and maintenance, enhancing self-cleaning efficiency.

[0041] It should be noted that the execution entity of the above-described self-cleaning control method for air conditioners is a processor. The processor can be configured in the air conditioner or in a server that is communicatively connected to the air conditioner. This disclosure does not impose specific limitations on this aspect.

[0042] Optionally, the processor determines the target heat exchange decay rate based on the number of cycles, including:

[0043] When the number of attempts exceeds the upper limit threshold, the processor determines the target heat exchange decay rate as the relative heat exchange decay rate.

[0044] When the number of cycles equals the lower limit threshold, the processor determines the target heat exchange decay rate as the absolute heat exchange decay rate.

[0045] The upper limit threshold for the number of attempts is 2, and the lower limit threshold for the number of attempts is 1.

[0046] Thus, when the number of cycles exceeds the upper threshold, it indicates that the air conditioner has run at least twice in cooling or heating mode after receiving the start-up command following self-cleaning. In this case, the relative attenuation rate is used as the target heat exchange attenuation rate to determine the change in the air conditioner's heat exchange performance. When the number of cycles equals the lower threshold, it indicates that the air conditioner is running in cooling or heating mode for the first time after receiving the start-up command following self-cleaning. In this case, the absolute attenuation rate is used as the target heat exchange attenuation rate to determine the change in the air conditioner's heat exchange performance. This embodiment determines different heat exchange attenuation rates as target heat exchange attenuation rates based on the number of consecutive runs. This improves the cooling / heating efficiency of the indoor heat exchanger, reduces overall power consumption, and enhances the accuracy of judging changes in heat exchange performance, preventing misjudgments that lead to frequent self-cleaning and protecting the compressor.

[0047] Optionally, combined Figure 2 As shown, when the target heat transfer decay rate is a relative heat transfer decay rate, the processor determines the startup strategy for executing the self-cleaning mode based on the target heat transfer decay rate, including:

[0048] S11, The processor obtains the first relative heat transfer attenuation rate β after this power-on, operating in target mode. 相对 (n) and the second relative heat exchange decay rate β after the previous startup in target mode. 相对 (n-1). Where n represents the number of times and n>2.

[0049] In this step, the previous one indicates that it is earlier in time than the current one and is the closest in time to the current one.

[0050] S12, the processor according to β 相对 (n) and β 相对 (n-1), to obtain the change in relative heat transfer rate Δβ 相对 (n), Δβ 相对 (n)=β 相对 (n)-β 相对 (n-1).

[0051] S13, the processor in Δβ 相对 (n)>Δβ 阈值 In this case, activate the self-cleaning mode.

[0052] In this step, Δβ 阈值 Δβ represents the threshold value for the change in the rate of heat exchange attenuation. 阈值 =α●β 临界 α represents the first coefficient, 0.2 ≤ α ≤ 0.5. β 临界 This indicates the reference value corresponding to the first self-cleaning mode and the second self-cleaning mode.

[0053] Thus, in this embodiment of the present disclosure, the difference between the first relative heat exchange attenuation rate after local power-on and the second relative heat exchange attenuation rate after the previous power-on and the target mode can be used to accurately obtain the change in relative heat exchange attenuation rate Δβ. 相对 (n). Therefore, the changes in heat transfer performance corresponding to n consecutive runs in the target mode can be determined. Furthermore, in Δβ 相对 (n) is greater than Δβ 阈值 This indicates a significant decrease in the air conditioner's heat exchange performance and a severe loss of heat exchange efficiency between the previous startup and the current startup. The current cleanliness of the indoor heat exchanger is detrimental to heat exchange and makes it unsuitable for heating or cooling. Therefore, this embodiment of the present disclosure activates a self-cleaning mode. Thus, this embodiment can accurately determine the changes in the air conditioner's heat exchange performance by utilizing the change in the relative heat exchange attenuation rate after three or more consecutive runs, and promptly activate the self-cleaning mode. This effectively improves the cooling / heating efficiency of the indoor heat exchanger, thereby reducing overall power consumption.

[0054] Optionally, combined Figure 3 As shown, when the target heat transfer decay rate is a relative heat transfer decay rate, the processor determines the startup strategy for executing the self-cleaning mode based on the target heat transfer decay rate, including:

[0055] S21, the processor obtains the first relative heat transfer attenuation rate β after this power-on, operating in target mode. 相对 (n) and the second relative heat exchange decay rate β after the previous startup in target mode. 相对 (n-1). Where n represents the number of times and n>2.

[0056] S22, the processor according to β 相对 (n) and β 相对 (n-1), to obtain the change in relative heat transfer rate Δβ 相对 (n), Δβ 相对 (n)=β 相对 (n)-β 相对 (n-1).

[0057] S23, the processor is at Δβ 相对 (n)>Δβ 阈值 In this case, activate the self-cleaning mode.

[0058] S24, the processor is at Δβ 相对 (n)≤Δβ 阈值 In the event of a self-cleaning trigger command, a self-cleaning operation corresponding to the relative heat exchange attenuation rate is triggered.

[0059] In this step, Δβ 阈值Δβ represents the threshold value for the change in the rate of heat exchange attenuation. 阈值 =α·β 临界 α represents the first coefficient, and 0.2 ≤ α ≤ 0.5.

[0060] Thus, in Δβ 相对 (n) is less than or equal to Δβ 阈值 This indicates that during the period from the previous startup to the current startup, the air conditioner's heat exchange performance has decreased, but the decrease is not significant, and there is a slight loss in heat exchange efficiency. Currently, the cleanliness of the indoor heat exchanger is moderate, and it can directly perform heating or cooling. However, different users have different needs regarding the degree of self-cleaning of the air conditioner. Therefore, in this embodiment, in response to a self-cleaning trigger command, a self-cleaning operation corresponding to the relative heat exchange attenuation rate is triggered. Thus, this embodiment can accurately determine the change in the air conditioner's heat exchange performance by utilizing the change in the relative heat exchange attenuation rate after three or more consecutive runs, and promptly activate the self-cleaning mode based on the user's self-cleaning trigger command when the cleanliness of the indoor heat exchanger is moderate. This balances the cooling / heating efficiency of the indoor heat exchanger, the overall power consumption, and the user's actual needs.

[0061] Optionally, the processor in Δβ 相对 (n)>Δβ 阈值 In the case of self-cleaning mode, the processor also pushes a first notification message to indicate that it has entered the self-cleaning mode.

[0062] Thus, in this embodiment of the present disclosure, when the air conditioner automatically executes the self-cleaning mode, it promptly notifies the user that the air conditioner has automatically entered the self-cleaning mode.

[0063] Optionally, in response to a self-cleaning trigger instruction, the processor triggers the execution of a self-cleaning operation corresponding to the relative heat transfer decay rate, including:

[0064] When the processor receives a self-cleaning trigger command, it initiates self-cleaning mode.

[0065] If the processor does not receive a self-cleaning trigger command, it will enter the corresponding mode based on subsequent input commands sent by the user.

[0066] Thus, embodiments of this disclosure can selectively activate the self-cleaning mode based on whether the user sends a self-cleaning trigger command.

[0067] Optionally, combined Figure 4 As shown, the processor obtains the relative heat transfer decay rate in the following manner:

[0068] S31, after the processor completes self-cleaning and is turned on for the nth time in target mode, it obtains the first coil temperature value te(n) of the indoor heat exchanger at the nth time of startup.

[0069] S32, after the processor controls the air conditioner to run continuously with the first current operating parameters within the duration threshold, it obtains the second coil temperature value ts(n) of the indoor heat exchanger after the continuous operation duration threshold.

[0070] The duration threshold can be 2 minutes, 3 minutes, or other values. The upper limit for the duration threshold is 5 minutes. Understandably, the duration threshold can also be set according to the air conditioner model.

[0071] S33, processor computing Obtain the relative heat exchange decay rate β 相对 (n).

[0072] Where Δt(n) represents the temperature difference of the first coil of the indoor heat exchanger within the time threshold, Δt(n) = te(n) - ts(n).

[0073] In this way, after the processor completes self-cleaning, each time it runs in the target mode, it controls the air conditioner to continuously operate with the first current operating parameters within a time threshold, keeping the refrigerant supply flow rate and velocity, as well as the indoor fan speed and outdoor fan speed, constant. Within the time threshold, the main difference in target mode operation lies in whether the indoor heat exchanger is clean, or, in other words, the main difference between each run in target mode lies in the heat exchange performance or efficiency of the indoor heat exchanger. If the indoor heat exchanger is relatively clean, its heat exchange performance is essentially maintained. Ideally, after each actuator continuously operates with its respective first current operating parameters within the time threshold, the heat exchange volume remains essentially constant. If the indoor heat exchanger is poorly clean, the heat exchange efficiency decreases and the heat exchange performance is reduced. That is, the heat exchange efficiency corresponds to different coil temperature differences. Therefore, the heat exchange efficiency or performance of the indoor heat exchanger can be reflected by the coil temperature difference.

[0074] Meanwhile, with repeated use of the air conditioner, even after multiple self-cleaning cycles, the heat exchange efficiency and performance of the indoor heat exchanger gradually decline. Based on the above technical considerations, this embodiment uses the coil temperature difference Δt(1) of the indoor heat exchanger within a time threshold, calculated at the first start-up after self-cleaning, as the relative benchmark parameter for the air conditioner's heat exchange efficiency. Therefore, the relative heat exchange attenuation rate for each subsequent cycle can be obtained by comparing Δt(1)-Δt(n) with Δt(1). This facilitates accurate calculation of the heat exchange attenuation rate for the third and subsequent cycles, thereby effectively improving the cooling / heating efficiency of the indoor heat exchanger and reducing overall power consumption.

[0075] Optionally, the processor continues to run with a first current running parameter within a duration threshold, including:

[0076] The processor obtains the first current operating parameters of each actuator of the air conditioner at the nth time it is turned on.

[0077] The processor controls each execution device to run continuously within a time threshold using its own first current operating parameters.

[0078] The actuators include a compressor, an indoor fan, an outdoor fan, and an electronic expansion valve. The first current operating parameters for each actuator include the compressor's operating frequency, the indoor fan's rotational speed, the outdoor fan's rotational speed, and the electronic expansion valve's opening degree.

[0079] In this way, after the processor completes self-cleaning, each time it runs in the target mode, it controls each actuator to continuously operate with its own first current operating parameters, keeping the refrigerant supply flow rate and velocity, as well as the indoor and outdoor fan speeds, constant. The main difference between each run in the target mode within the time threshold lies in whether the indoor heat exchanger is clean, or, more specifically, in the heat exchange performance or efficiency of the indoor heat exchanger. If the indoor heat exchanger is relatively clean, its heat exchange performance remains essentially constant. Ideally, after each actuator continuously operates with its own first current operating parameters within the time threshold, the heat exchange volume remains essentially constant. If the indoor heat exchanger is poorly clean, the heat exchange efficiency decreases, and the heat exchange performance is reduced. That is, the heat exchange efficiency corresponds to different coil temperature differences. Therefore, the heat exchange efficiency or performance of the indoor heat exchanger can be reflected by the coil temperature difference.

[0080] Combination Figure 5 As shown, this disclosure provides another self-cleaning control method for air conditioners, including:

[0081] S41, after completing self-cleaning, the processor responds to the power-on command and obtains the number of times the air conditioner has continuously run in a target mode, which may be either cooling mode or heating mode.

[0082] S42, the processor determines the target heat exchange decay rate based on the number of cycles.

[0083] S43, the processor is at a target heat transfer decay rate of absolute heat transfer decay rate β 绝对 In the case of β, determine 绝对 >β 阈值 Is the condition true? If true, proceed to step S44. If false, proceed to step S45.

[0084] S44, the processor pushes a notification message instructing the self-cleaning process to be performed again.

[0085] S45, the processor responds to the self-cleaning trigger instruction and triggers the execution of the self-cleaning operation corresponding to the absolute heat transfer decay rate.

[0086] Where, β 阈值 This represents the threshold for the heat exchange rate decay. β 阈值 =γ·β 临界 γ represents the second coefficient, 0.8≤χ≤0.9.

[0087] Using the self-cleaning control method for air conditioners provided in this disclosure embodiment, in β 绝对 >β 阈值 Upon activation, it indicates that although this is the first run after self-cleaning, the indoor heat exchanger may have become contaminated due to prolonged inactivity after self-cleaning, resulting in a poor level of cleanliness. In this case, a notification message is sent to instruct the user to perform self-cleaning again. (In β...) 绝对 ≤β 阈值 When the user sends a self-cleaning trigger command, the self-cleaning process is initiated.

[0088] Optionally, before the processor responds to the self-cleaning trigger command and triggers the execution of the self-cleaning operation corresponding to the absolute heat exchange rate decay in step S45, the processor further includes: pushing a second notification message, the second notification message being used to indicate that the self-cleaning mode has been completed.

[0089] Thus, this embodiment of the disclosure can determine whether the air conditioner has completed self-cleaning based on the absolute heat exchange attenuation rate, and promptly notify the user before receiving the self-cleaning trigger command. This allows the user to choose whether to send a self-cleaning trigger command or not, based on their specific needs.

[0090] Optionally, in step S45, the processor, in response to the self-cleaning trigger command, triggers the execution of a self-cleaning operation corresponding to the absolute heat transfer rate decay, including:

[0091] When the processor receives a self-cleaning trigger instruction, it executes the second self-cleaning mode.

[0092] If the processor does not receive a self-cleaning trigger command, it will enter the corresponding mode based on subsequent input commands sent by the user.

[0093] Thus, embodiments of this disclosure can selectively activate the self-cleaning mode based on whether the user sends a self-cleaning trigger command.

[0094] Optionally, combined Figure 6 As shown, the processor obtains the absolute heat transfer decay rate in the following manner:

[0095] S51, when the air conditioner is turned on for the first time in target mode after installation, the processor obtains the first coil temperature value te(0) of the indoor heat exchanger at the moment of first turn-on.

[0096] S52, after the processor controls the air conditioner to run continuously with the second current operating parameters within the duration threshold, it obtains the second coil temperature value ts(0) of the indoor heat exchanger after the continuous operation duration threshold.

[0097] S53, processor computing Obtain the absolute heat transfer decay rate β 绝对 .

[0098] Where Δt(0) represents the temperature difference of the second coil of the indoor heat exchanger within the time threshold, Δt(0) = te(0) - ts(0).

[0099] Thus, when the air conditioner is first turned on in the target mode after installation, Δt(0) is calculated and used as the absolute benchmark parameter for the air conditioner's heat exchange efficiency. Then, when the air conditioner is first turned on after self-cleaning (n=1), Δt(1) = te(1) - ts(1) is calculated. By comparing Δt(0) - Δt(1) with Δt(0), the absolute heat exchange attenuation rate can be obtained. This is beneficial for accurately calculating the heat exchange attenuation rate of the indoor heat exchanger during the first turn-on after self-cleaning, thereby effectively improving the cooling / heating efficiency of the indoor heat exchanger when operating in the target mode, and ultimately reducing the overall power consumption.

[0100] Optionally, the processor initiates a self-cleaning mode, including:

[0101] In β 相对 (n)>β 临界 In this case, the first self-cleaning mode will be executed.

[0102] In β 相对 (n)≤β 临界 In this case, the second self-cleaning mode will be executed.

[0103] Among them, the self-cleaning strength of the first self-cleaning mode is greater than that of the second self-cleaning mode.

[0104] Thus, in β 相对 (n)>β 临界 In this case, it indicates a large heat exchange attenuation rate and severe blockage of the indoor heat exchanger; therefore, the first cleaning mode is executed. When β≤β 临界 When the temperature reaches a certain level, it indicates that the heat exchange rate is moderate and the indoor heat exchanger is only slightly clogged. Therefore, the second cleaning mode is executed.

[0105] Optionally, the total power consumption of the first self-cleaning mode is greater than that of the second self-cleaning mode, and / or the runtime of the first self-cleaning mode is greater than that of the second self-cleaning mode.

[0106] Thus, the first self-cleaning mode is more powerful than the second self-cleaning mode.

[0107] Optionally, the air conditioner can be set to a powerful self-cleaning mode and a normal self-cleaning mode. The first self-cleaning mode is the powerful self-cleaning mode. The second self-cleaning mode is the normal self-cleaning mode.

[0108] In practical applications, such as Figure 7 As shown, the self-cleaning control method for air conditioners performs the following steps:

[0109] S61, after completing self-cleaning, the processor responds to the power-on command, powers on, and obtains the number of times n that the air conditioner has continuously run in cooling mode.

[0110] S62, the processor determines whether n=1 is true. If yes, execute S71; otherwise, execute S63.

[0111] S63, the processor determines whether n > 2 is true. If so, then execute S64.

[0112] S64, the processor calculates the change in relative heat transfer decay rate Δβ 相对 (n), and determine Δβ 相对 (n)>Δβ 阈值 Is the condition true? If yes, proceed to S65. If no, proceed to S69.

[0113] S65, the processor executes self-cleaning mode and pushes a first notification message indicating that it has entered self-cleaning mode.

[0114] S66, the processor determines β 相对 (n)>β 临界 Is the condition true? If yes, proceed to S67. If no, proceed to S68.

[0115] S67, the processor executes the first self-cleaning mode.

[0116] S68, the processor executes the second self-cleaning mode.

[0117] In step S69, the processor determines whether a self-cleaning trigger instruction has been received. If yes, it executes step S66. If no, it executes step S70.

[0118] S70: The processor enters the corresponding mode based on subsequent input commands sent by the user.

[0119] S71, the processor calculates the change in absolute heat transfer rate β. 绝对 And determine β 绝对 >β 阈值 Is the condition true? If yes, proceed to step S72. If no, proceed to step S73.

[0120] S72, the processor pushes a prompt message to instruct the self-cleaning process to be performed again.

[0121] S73, the processor pushes a second notification message to indicate that the self-cleaning mode has been completed.

[0122] In step S74, the processor determines whether a self-cleaning trigger instruction has been received. If yes, it executes step S76. If no, it executes step S75.

[0123] S75, the processor enters the corresponding mode based on subsequent input commands sent by the user.

[0124] S76, the processor executes the second self-cleaning mode.

[0125] Combination Figure 8 As shown, this embodiment of the disclosure provides a self-cleaning control device 200 for an air conditioner, including a response module 201, a determination module 202, and an execution module 203. The response module 201 is configured to, upon completion of self-cleaning, respond to a power-on command to obtain the number of times the air conditioner has continuously operated in a target mode, where the target mode includes either a cooling mode or a heating mode. The determination module 202 is configured to determine a target heat exchange attenuation rate based on the number of operations. The execution module 203 is configured to determine a startup strategy for executing the self-cleaning mode based on the target heat exchange attenuation rate.

[0126] By employing the self-cleaning control device for air conditioners provided in this embodiment, after accurately knowing the changes in the heat exchange performance of the air conditioner, the activation strategy for executing the self-cleaning mode can be determined based on the changes in heat exchange performance to achieve self-cleaning of the air conditioner, thereby effectively improving the cooling / heating efficiency of the indoor heat exchanger and reducing the overall power consumption.

[0127] Combination Figure 9 As shown, this disclosure provides a self-cleaning control device 300 for an air conditioner, including a processor 400 and a memory 401. Optionally, the device may further include a communication interface 402 and a bus 403. The processor 400, communication interface 402, and memory 401 can communicate with each other via the bus 403. The communication interface 402 can be used for information transmission. The processor 400 can call logical instructions in the memory 401 to execute the self-cleaning control method for an air conditioner described in the above embodiment.

[0128] Furthermore, the logic instructions in the aforementioned memory 401 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium.

[0129] The memory 401, as a computer-readable storage medium, can be used to store software programs and computer-executable programs, such as program instructions / modules corresponding to the methods in the embodiments of this disclosure. The processor 400 executes functional applications and data processing by running the program instructions / modules stored in the memory 401, thereby implementing the self-cleaning control method for air conditioners in the above embodiments.

[0130] The memory 401 may include a program storage area and a data storage area. The program storage area may store the operating system and applications required for at least one function; the data storage area may store data created based on the use of the terminal device. Furthermore, the memory 401 may include high-speed random access memory and may also include non-volatile memory.

[0131] Combination Figure 10 As shown, this disclosure provides an air conditioner 600, including: an air conditioner body, and the aforementioned self-cleaning control device 200 (300) for the air conditioner. The self-cleaning control device 200 (300) for the air conditioner is installed on the air conditioner body. The installation relationship described herein is not limited to placement 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. Those skilled in the art will understand that the self-cleaning control device 200 (300) for the air conditioner can be adapted to feasible product bodies to achieve other feasible embodiments.

[0132] This disclosure provides a computer-readable storage medium storing computer-executable instructions configured to perform the above-described self-cleaning control method for an air conditioner.

[0133] The aforementioned computer-readable storage medium may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

[0134] The technical solutions of this 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 to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in this disclosure. The aforementioned storage medium can be a non-transitory storage medium, including: a USB flash drive, a portable hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and other media capable of storing program code; it can also be a transient storage medium.

[0135] The foregoing description and accompanying drawings fully illustrate embodiments of this disclosure to enable those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, procedural, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. Moreover, the terminology used in this application is for describing embodiments only and is not intended to limit the claims. As used in the description of embodiments and claims, the singular forms “a,” “an,” and “the” are intended to equally include the plural forms unless the context clearly indicates otherwise. Similarly, the term “and / or” as used in this application means including one or more of the associated listed items and all possible combinations thereof. Additionally, when used in this application, the term "comprise" and its variations "comprises" and / or "comprising" refer to the presence of stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof. Without further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the process, method, or apparatus that includes said element. In this document, each embodiment may focus on the differences from other embodiments, and similar or identical parts between embodiments can be referred to mutually. For methods, products, etc., disclosed in the embodiments, if they correspond to the method section disclosed in the embodiments, the relevant parts can be referred to the description of the method section.

[0136] Those skilled in the art will recognize that the units and algorithm steps of the various examples 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 implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the embodiments of this disclosure. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0137] The methods and products (including but not limited to devices and equipment) disclosed in the embodiments herein can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For instance, the division of units may be merely a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the shown or discussed units may be through some interfaces, and the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the units may be selected to implement this embodiment according to actual needs. Furthermore, the functional units in the embodiments of this disclosure may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0138] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to embodiments of this disclosure. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions marked in the blocks may occur in a different order than that shown in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending 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 may also occur in a different order than disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. Each block in a block diagram and / or flowchart, and combinations of blocks in a block diagram and / or flowchart, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

Claims

1. A self-cleaning control method for an air conditioner, characterized in that, include: After self-cleaning is completed, in response to the power-on command, the number of times the air conditioner has continuously run in a target mode is obtained, wherein the target mode is either cooling mode or heating mode; Based on the number of times, determine the target heat exchange attenuation rate; Based on the target heat exchange attenuation rate, determine the start-up strategy for executing the self-cleaning mode; Determining the target heat exchange attenuation rate based on the number of times includes: If the number of times exceeds the upper limit threshold, the target heat exchange decay rate is determined to be the relative heat exchange decay rate. When the number of times is equal to the lower limit threshold, the target heat exchange decay rate is determined to be the absolute heat exchange decay rate; The relative heat exchange rate attenuation is obtained as follows: After completing self-cleaning, proceed in the target mode described above. On the first startup, obtain the indoor heat exchanger data at the first... The first coil temperature value at the moment of initial startup ; After controlling the air conditioner to run continuously with the first current operating parameters within a time threshold, the second coil temperature value of the indoor heat exchanger after continuous operation for the time threshold is obtained. ; calculate To obtain the relative heat exchange attenuation rate ; in, This represents the temperature difference of the first coil in the indoor heat exchanger within the specified time threshold. , Indicates the number of times, >2; The absolute heat exchange rate attenuation is obtained as follows: When the air conditioner is first turned on in the target mode after installation, the first coil temperature value of the indoor heat exchanger is obtained at the moment of first start-up. ; After controlling the air conditioner to continuously operate at the second current operating parameters within the specified time threshold, the second coil temperature value of the indoor heat exchanger after continuous operation for the specified time threshold is obtained. ; calculate To obtain the absolute heat exchange attenuation rate ; in, This represents the temperature difference of the second coil of the indoor heat exchanger within the specified time threshold. .

2. The method according to claim 1, characterized in that, When the target heat exchange decay rate is a relative heat exchange decay rate, determining the activation strategy for executing the self-cleaning mode based on the target heat exchange decay rate includes: Obtain the first relative heat exchange attenuation rate after startup in the target mode. And the second relative heat exchange attenuation rate after the previous startup when operating in the target mode. ; according to and To obtain the change in the relative heat exchange attenuation rate , ; exist In this case, activate the self-cleaning mode.

3. The method according to claim 2, characterized in that, The step of determining the activation strategy for executing the self-cleaning mode based on the target heat exchange attenuation rate further includes: exist In the event of a self-cleaning trigger command, a self-cleaning operation corresponding to the relative heat exchange attenuation rate is triggered.

4. The method according to claim 2, characterized in that, The activation of the self-cleaning mode includes: exist In this case, the first self-cleaning mode is executed; exist In the event of this, the second self-cleaning mode will be executed; The self-cleaning intensity of the first self-cleaning mode is greater than that of the second self-cleaning mode.

5. The method according to claim 1, characterized in that, The target heat exchange rate attenuation rate is the absolute heat exchange rate attenuation rate. In the case of the target heat exchange attenuation rate, determining the activation strategy for executing the self-cleaning mode includes: exist In such cases, a notification message is pushed out, which instructs the user to perform self-cleaning again; exist In the event of a self-cleaning trigger command, a self-cleaning operation corresponding to the absolute heat exchange rate attenuation is triggered.

6. A self-cleaning control device for an air conditioner, comprising a processor and a memory storing program instructions, characterized in that, The processor is configured to execute, when running the program instructions, the self-cleaning control method for an air conditioner as described in any one of claims 1 to 5.

7. An air conditioner, characterized in that, include: Air conditioner unit; The self-cleaning control device for an air conditioner as described in claim 6 is installed on the air conditioner body.

8. A storage medium storing program instructions, characterized in that, When the program instructions are executed, they perform the self-cleaning control method for an air conditioner as described in any one of claims 1 to 5.

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