Control method for air conditioner self-cleaning, air conditioner, and storage medium

Abstract

The application relates to the technical field of intelligent household appliances, and discloses a control method for self-cleaning of an air conditioner, which comprises the following steps: in response to a self-cleaning request, controlling the air conditioner to run in a heating mode and controlling a fan to rotate in a first direction; obtaining an operating parameter of the air conditioner; and in the case that the operating parameter meets a preset condition, controlling the fan to rotate in a second direction, wherein the first direction is opposite to the second direction. The air conditioner comprises an indoor heat exchanger. During the operation in the heating mode, the fan is first controlled to rotate in the first direction, and then the fan is controlled to rotate in the second direction opposite to the first direction. In this way, the fan is reversed to blow the high-temperature gas after heat exchange with the indoor heat exchanger to the space on both sides of the indoor heat exchanger, so that the overall space in the indoor unit is self-cleaned, the internal space of the indoor unit is maximally cleaned, and the cleaning effect of the self-cleaning of the internal space of the indoor unit is improved. The application further discloses an air conditioner and a storage medium.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of intelligent household appliances, for example to a control method for air conditioner self-cleaning, an air conditioner and a storage medium. BACKGROUND

[0002] At present, after long-time use, dust and bacteria are easily accumulated in the air conditioner, which can cause the air conditioner to blow more dust and bacteria, and thus cause the user to have physical discomfort and other problems.

[0003] In the related art, the self-cleaning function of the air conditioner is used to remove the bacteria and dust in the air conditioner.

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

[0005] In the air conditioner self-cleaning process, the bacteria and dust in the air conditioner are removed by using the mode of first cooling the indoor unit and then heating the indoor unit, but the bacteria and dust in the position from the evaporator to the air inlet cannot be removed.

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

[0007] In order to have a basic understanding of some aspects of the disclosed embodiments, the following is a simple summary. The summary is not a general review, nor is it intended to determine the key / important components or to delineate the scope of protection of these embodiments, but as a prelude to the detailed description below.

[0008] The embodiments of the present disclosure provide a control method for air conditioner self-cleaning, an air conditioner and a storage medium, which further reduces the dust and bacteria in the air conditioner and improves the cleaning effect of air conditioner self-cleaning.

[0009] In some embodiments, a control method for air conditioner self-cleaning is provided, comprising: in response to a self-cleaning request, controlling the air conditioner to run in a heating mode and controlling a fan to rotate in a first direction; obtaining an operating parameter of the air conditioner; and in a case where the operating parameter meets a preset condition, controlling the fan to rotate in a second direction; wherein the first direction is opposite to the second direction.

[0010] Optionally, the operating parameter comprises a running time length of the fan, and the step of obtaining the operating parameter of the air conditioner comprises: obtaining a first running time length of the fan rotating in the first direction.

[0011] Optionally, the step of controlling the fan to rotate in the second direction comprises: controlling the fan to rotate in the second direction when the first duration is greater than or equal to a first duration threshold.

[0012] Optionally, the air conditioner comprises an indoor heat exchanger, and the step of obtaining the operation parameter of the air conditioner comprises: obtaining a first coil temperature of the indoor heat exchanger; and timing a first duration that the first coil temperature is greater than or equal to a first temperature threshold.

[0013] Optionally, the step of controlling the fan to rotate in the second direction comprises: controlling the fan to rotate in the second direction when the first duration is greater than or equal to a second duration threshold.

[0014] Optionally, the step of controlling the fan to rotate in the second direction is followed by: obtaining a second duration that the fan rotates in the second direction; and exiting the self-cleaning mode when the second duration is greater than or equal to a third duration threshold.

[0015] Optionally, the air conditioner comprises an indoor heat exchanger, and the step of controlling the fan to rotate in the second direction is followed by: obtaining a second coil temperature of the indoor heat exchanger; timing a second duration that the second coil temperature is greater than or equal to a second temperature threshold; and exiting the self-cleaning mode when the second duration is greater than or equal to a fourth duration threshold.

[0016] Optionally, the step of exiting the self-cleaning mode is preceded by: controlling the air conditioner to operate in a cooling mode; obtaining a current indoor ambient temperature; and controlling the air deflector to rotate by a preset angle and controlling the fan to rotate in a first direction for a preset duration when the current indoor ambient temperature is less than a preset temperature.

[0017] Optionally, the step of exiting the self-cleaning mode is followed by: obtaining an operation state of the air conditioner before the air conditioner responds to a self-cleaning request; and controlling the air conditioner to restore the operation state.

[0018] Optionally, the step of controlling the air conditioner to operate in a heating mode is preceded by: obtaining an indoor ambient temperature; and controlling the air conditioner to operate in a cooling mode for a preset time when the indoor ambient temperature is less than or equal to a preset ambient temperature.

[0019] In some embodiments, an air conditioner is provided, comprising a processor and a memory storing program instructions, the processor being configured to execute the control method for air conditioner self-cleaning of any of the above embodiments when running the program instructions.

[0020] In some embodiments, a storage medium is provided, which stores program instructions. When the program instructions are executed, the control method for air conditioner self-cleaning is implemented.

[0021] The control method for air conditioner self-cleaning, the air conditioner and the storage medium provided by the embodiments of the present disclosure can achieve the following technical effects:

[0022] The air conditioner provided by the embodiments of the present disclosure comprises an indoor heat exchanger. The control method comprises: entering a self-cleaning mode of the air conditioner in response to a self-cleaning request. Specifically, the air conditioner is controlled to run in a heating mode, and the indoor heat exchanger functions as a condenser. The condenser coil temperature is raised by the air conditioner heating, and then the bacteria on the indoor heat exchanger are sterilized by high temperature. And by controlling the fan to rotate in a first direction, the high-temperature air after heat exchange with the indoor heat exchanger is blown to the space between the indoor heat exchanger and the air outlet, so as to remove the bacteria and dust in the space between the indoor heat exchanger and the air outlet.

[0023] Further, by acquiring the operating parameters of the air conditioner, the operating state of the air conditioner in the heating mode is confirmed, and then the removal degree of the bacteria and dust in the space between the indoor heat exchanger and the air outlet is confirmed. In the case where the operating parameters meet the preset conditions, the fan is controlled to rotate in a second direction opposite to the first direction. The high-temperature air after heat exchange with the indoor heat exchanger is blown to the space between the indoor heat exchanger and the air inlet, so as to remove the bacteria and dust in the space between the indoor heat exchanger and the air inlet.

[0024] The control method for air conditioner self-cleaning provided by the present disclosure controls the fan to rotate in a first direction during the operation of the heating mode, and then controls the fan to rotate in a second direction opposite to the first direction. In this way, the fan is reversed to blow the high-temperature gas after heat exchange with the indoor heat exchanger to the space on both sides of the indoor heat exchanger, and then the entire space inside the indoor unit is self-cleaned, so as to maximize the cleaning of the internal space of the indoor unit and improve the cleaning effect of the self-cleaning of the internal space of the indoor unit.

[0025] The foregoing general description and the following description are only exemplary and explanatory, and are not used to limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0026] One or more embodiments are exemplarily illustrated by corresponding drawings, which do not constitute limitation on the embodiments, elements with the same reference numerals in the drawings are shown as similar elements, the drawings do not constitute proportional limitation, and wherein:

[0027] Figure 1 is a schematic diagram of the air conditioner provided by the embodiments of the present disclosure;

[0028] Figure 2 is a flowchart of a control method for air conditioner self-cleaning provided by an embodiment of the present disclosure;

[0029] Figure 3 is a flowchart of another control method for air conditioner self-cleaning provided by an embodiment of the present disclosure;

[0030] Figure 4 is a flowchart of another control method for air conditioner self-cleaning provided by an embodiment of the present disclosure;

[0031] Figure 5 is a flowchart of another control method for air conditioner self-cleaning provided by an embodiment of the present disclosure;

[0032] Figure 6 is a flowchart of another control method for air conditioner self-cleaning provided by an embodiment of the present disclosure;

[0033] Figure 7 is a flowchart of another control method for air conditioner self-cleaning provided by an embodiment of the present disclosure;

[0034] Figure 8 is a flowchart of another control method for air conditioner self-cleaning provided by an embodiment of the present disclosure;

[0035] Figure 9 is another schematic diagram of an air conditioner provided by an embodiment of the present disclosure.

[0036] Reference signs:

[0037] 100 air conditioner; 900 processor; 901 memory; 902 communication interface; 903 bus. DETAILED DESCRIPTION

[0038] In order to enable a person skilled in the art to better understand the features and technical contents of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the drawings, which are only used for reference and do not limit the embodiments of the present disclosure. In the following technical description, in order to facilitate explanation, a plurality of details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, in order to simplify the drawings, well-known structures and devices can be simplified.

[0039] The terms "first", "second", and the like in the description and in the claims of the embodiments of the present disclosure and the above-described drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present disclosure described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0040] Unless otherwise specified, the term "a plurality of" means two or more.

[0041] In the embodiments of the present disclosure, the character " / " represents a "or" relationship between the objects before and after it. For example, A / B represents: A or B.

[0042] The term "and / or" is a description of the association relationship between objects, which means that there can be three relationships. For example, A and / or B, which means: A or B, or, A and B, the three relationships.

[0043] The term "corresponding" can refer to an association relationship or a binding relationship. A and B correspond to each other means that there is an association relationship or a binding relationship between A and B.

[0044] In some embodiments, in combination with Figure 1 As shown, an air conditioner 100 is provided, which includes a compressor, a four-way reversing valve, an outdoor heat exchanger, an electronic expansion valve and an indoor heat exchanger connected in sequence to form a refrigerant flow path. The air conditioner further includes an air conditioner indoor unit and an air conditioner outdoor unit, wherein the outdoor heat exchanger is arranged in the air conditioner outdoor unit, and the indoor heat exchanger is arranged in the air conditioner indoor unit. The air conditioner indoor unit further includes a fan for blowing the gas after heat exchange with the indoor heat exchanger into the room to adjust the indoor environment temperature.

[0045] Wherein, when the air conditioner operates in a cooling mode, the indoor heat exchanger is an evaporator, and the outdoor heat exchanger is a condenser. When the air conditioner operates in a heating mode, the indoor heat exchanger is a condenser, and the outdoor heat exchanger is an evaporator.

[0046] When the air runs in the self-cleaning mode, the cooling mode is first run, the indoor heat exchanger is an evaporator, and the outdoor heat exchanger is a condenser, so that the surface of the indoor heat exchanger is frosted. After frosting is completed, the heating mode is run again, the indoor heat exchanger is a condenser, and the outdoor heat exchanger is an evaporator, so as to defrost the indoor heat exchanger and clean the indoor heat exchanger by defrosting water. Specifically, during the operation of the self-cleaning mode, the speed of the fan is controlled to be reduced in the heating mode, so that the temperature of the coil of the indoor heat exchanger is increased, and then the temperature of the gas for heat exchange with the indoor heat exchanger is increased. The obtained high-temperature gas is used for sterilization treatment of the inside of the air conditioner indoor unit, so as to improve the sterilization effect of the air conditioner indoor unit, and then improve the self-cleaning effect.

[0047] In some embodiments, an air conditioner is provided, comprising a processor and a memory storing program instructions, the processor is configured to execute a control method for air conditioner self-cleaning when running the program instructions.

[0048] In combination Figure 1 In combination with the air conditioner shown in some embodiments, in combination Figure 2 As shown, a control method for air conditioner self-cleaning is provided, comprising:

[0049] S201, the processor controls the air conditioner to run in heating mode in response to a self-cleaning request, and controls the fan to rotate in a first direction.

[0050] S202, the processor acquires the running parameters of the air conditioner.

[0051] S203, the processor controls the fan to rotate in a second direction if the running parameters meet preset conditions.

[0052] Wherein, the first direction is opposite to the second direction.

[0053] In this embodiment, by responding to the self-cleaning request, the air conditioner enters the self-cleaning mode. Specifically, the air conditioner is controlled to run in heating mode, and then the indoor heat exchanger functions as a condenser. By heating of the air conditioner, the temperature of the condenser coil is raised, and then the high temperature is used to sterilize the bacteria on the indoor heat exchanger. And by controlling the fan to rotate in the first direction, the high-temperature air after heat exchange with the indoor heat exchanger is blown to the space between the indoor heat exchanger and the air outlet, so as to remove the bacteria and dust in the space between the indoor heat exchanger and the air outlet.

[0054] Further, by acquiring the running parameters of the air conditioner, the running state of the air conditioner in heating mode is confirmed, and then the removal degree of the bacteria and dust in the space between the indoor heat exchanger and the air outlet is confirmed. In the case where the running parameters meet the preset conditions, the fan is controlled to rotate in the second direction. So that the high-temperature air after heat exchange with the indoor heat exchanger is blown to the space between the indoor heat exchanger and the air inlet, so as to remove the bacteria and dust in the space between the indoor heat exchanger and the air inlet.

[0055] In some embodiments, the running parameters include the running time length of the fan, and the step of acquiring the running parameters of the air conditioner comprises: acquiring the first running time length of the fan rotating in the first direction.

[0056] In this embodiment, by acquiring the first running time length of the fan rotating in the first direction, the running time length of the air conditioner in heating mode and the fan rotating in the first direction is determined. Then the removal degree of the bacteria and dust in the space between the indoor heat exchanger and the air outlet is confirmed, the control accuracy of self-cleaning is improved, and the cleaning degree of removing the dust and bacteria in the air conditioner is improved.

[0057] Specifically, in a case where the first running duration satisfies the preset condition, it is confirmed that the removal degree of bacteria and dust in the space between the indoor heat exchanger and the air outlet meets the requirement. The removal of dust and bacteria at other positions in the air conditioner can be performed to further improve the cleaning degree of the air conditioner self-cleaning.

[0058] In a case where the first running duration does not satisfy the preset condition, it is confirmed that the removal degree of bacteria and dust in the space between the indoor heat exchanger and the air outlet does not meet the requirement. It is necessary to continue to control the fan to rotate in the first direction to continue to remove the bacteria and dust in the space between the indoor heat exchanger and the air outlet, and to improve the cleaning degree of the air conditioner self-cleaning.

[0059] Optionally, in a case where the running parameter satisfies the preset condition, the step of controlling the fan to rotate in the second direction comprises: in a case where the first running duration is greater than or equal to the first duration threshold, controlling the fan to rotate in the second direction.

[0060] In this embodiment, after the fan runs for the first duration threshold, the removal degree of bacteria and dust in the space between the indoor heat exchanger and the air outlet meets the requirement, so it is only necessary to run for the first duration threshold. In addition, setting the first duration threshold can prevent the problem of air conditioner damage caused by the temperature being too high in the air conditioner due to the first running duration being too long.

[0061] Optionally, the first duration threshold has a value range of 40 minutes to 50 minutes. The specific value of the first duration threshold comprises: 40 minutes, 45 minutes or 50 minutes.

[0062] In some embodiments, in combination with Figure 3 As shown in the figure, the embodiment of the present disclosure provides another control method for air conditioner self-cleaning, comprising:

[0063] S301, the processor controls the air conditioner to run in a heating mode and controls the fan to rotate in a first direction in response to a self-cleaning request.

[0064] S302, the processor acquires a first running duration of the fan rotating in the first direction.

[0065] S303, the processor controls the fan to rotate in a second direction in a case where the first running duration is greater than or equal to a first duration threshold.

[0066] Wherein, the first direction is opposite to the second direction.

[0067] In this embodiment, the self-cleaning mode of the air conditioner is entered in response to a self-cleaning request. Specifically, the air conditioner is controlled to operate in a heating mode, and the indoor heat exchanger functions as a condenser. The air conditioner is controlled to operate in the heating mode, so that the temperature of the coil of the condenser is increased, and the bacteria on the indoor heat exchanger are killed by the high temperature. In addition, the fan is controlled to rotate in the first direction, so that the high-temperature air after heat exchange with the indoor heat exchanger is blown to the space between the indoor heat exchanger and the air outlet, so as to remove the bacteria and dust in the space between the indoor heat exchanger and the air outlet.

[0068] Further, the first running time length of the fan rotating in the first direction is obtained to determine that the air conditioner operates in the heating mode and the fan rotates in the first direction for the running time length. Then, the degree of removal of the bacteria and dust in the space between the indoor heat exchanger and the air outlet is confirmed. In a case where the first running time length is greater than or equal to a first time threshold, the fan is controlled to rotate in the second direction. So that the high-temperature air after heat exchange with the indoor heat exchanger is blown to the space between the indoor heat exchanger and the air inlet, so as to remove the bacteria and dust in the space between the indoor heat exchanger and the air inlet.

[0069] In some embodiments, the air conditioner comprises an indoor heat exchanger, and the step of obtaining the operating parameter of the air conditioner comprises: obtaining a first coil temperature of the indoor heat exchanger. The first duration that the first coil temperature is greater than or equal to a first temperature threshold is timed.

[0070] In this embodiment, the first coil temperature of the indoor heat exchanger is obtained to confirm the current coil temperature. When the current coil temperature is greater than or equal to the first temperature threshold, if the duration is too long, it may cause damage to the air conditioner. Therefore, the duration that the current coil temperature is greater than or equal to the first temperature threshold needs to be detected to prevent damage to the air conditioner.

[0071] Optionally, the first temperature threshold has a value range of 56-60℃. The specific value of the first temperature threshold includes 56℃, 59℃ or 60℃.

[0072] In this embodiment, by setting the first temperature threshold, when the coil temperature is greater than or equal to the first temperature threshold, the sterilization effect in the air conditioner is good, so as to realize high-temperature self-cleaning.

[0073] Optionally, in a case where the operating parameter meets a preset condition, the step of controlling the fan to rotate in the second direction comprises: in a case where the first duration is greater than or equal to a second time threshold, controlling the fan to rotate in the second direction.

[0074] In this embodiment, in the case that the first duration is greater than or equal to the second duration threshold, it indicates that the first coil temperature is greater than or equal to the first temperature threshold for a period of time. At this time, the degree of removal of bacteria and dust in the space between the indoor heat exchanger and the air outlet has reached the requirement, and the bacteria and dust in other positions in the air conditioner can be further removed to improve the cleaning degree of the air conditioner. Moreover, the problem of air conditioner damage caused by the temperature being too high for too long in the air conditioner can be prevented.

[0075] Optionally, the second duration threshold has a value range of 30 minutes to 50 minutes. The specific value of the second duration threshold includes 30 minutes, 40 minutes, or 50 minutes.

[0076] Optionally, the value of the first temperature threshold is negatively correlated with the value of the second duration threshold.

[0077] For example, in the case that the value of the first temperature threshold is 56℃, the value of the second duration threshold is 50 minutes. In the case that the value of the first temperature threshold is 59℃, the value of the second duration threshold is 40 minutes. In the case that the value of the first temperature threshold is 60℃, the value of the second duration threshold is 30 minutes.

[0078] In some embodiments, in combination with Figure 4 As shown in the figure, the embodiment of the present disclosure provides another control method for self-cleaning of an air conditioner, comprising:

[0079] S401, the processor controls the air conditioner to run in a heating mode and controls the fan to rotate in a first direction in response to a self-cleaning request.

[0080] S402, the processor acquires a first coil temperature of an indoor heat exchanger.

[0081] S403, the processor times a first duration in which the first coil temperature is greater than or equal to a first temperature threshold.

[0082] S404, the processor controls the fan to rotate in a second direction in the case that the first duration is greater than or equal to a second duration threshold.

[0083] In this embodiment, by acquiring the first coil temperature of the indoor heat exchanger and timing the duration in which the first coil temperature is greater than or equal to the first temperature threshold, in the case that the first duration is greater than or equal to the second duration threshold, it indicates that the first coil temperature is greater than or equal to the first temperature threshold for a period of time. At this time, the degree of removal of bacteria and dust in the space between the indoor heat exchanger and the air outlet has reached the requirement, and the bacteria and dust in other positions in the air conditioner can be further removed. Moreover, the problem of air conditioner damage caused by the temperature being too high for too long in the air conditioner can be prevented.

[0084] Further, the fan is controlled to rotate in the second direction, so that the high-temperature air after heat exchange with the indoor heat exchanger is blown to the space between the indoor heat exchanger and the air inlet, to remove bacteria and dust in the space between the indoor heat exchanger and the air inlet.

[0085] In some embodiments, in combination Figure 5 As shown in the drawings, the embodiment of the present disclosure provides another control method for self-cleaning of an air conditioner, comprising:

[0086] S501, the processor controls the air conditioner to run in a heating mode and controls the fan to rotate in a first direction in response to a self-cleaning request.

[0087] S502, the processor acquires an operating parameter of the air conditioner.

[0088] S503, the processor controls the fan to rotate in a second direction in a case where the operating parameter meets a preset condition.

[0089] S504, the processor acquires a second operating duration of the fan rotating in the second direction.

[0090] S505, the processor exits the self-cleaning mode in a case where the second operating duration is greater than or equal to a third duration threshold.

[0091] The first direction is opposite to the second direction.

[0092] In this embodiment, the second operating duration of the fan rotating in the second direction is acquired after the fan is controlled to rotate in the second direction, to confirm the cleaning degree of bacteria and dust in the space between the indoor heat exchanger and the air inlet. In a case where the second operating duration is greater than or equal to the third duration threshold, it is indicated that the cleaning degree of bacteria and dust in the space between the indoor heat exchanger and the air inlet has reached the requirement, and then the self-cleaning mode is exited. At the same time, in a case where the second operating duration is greater than or equal to the third duration threshold, the problem of air conditioner damage caused by excessively high temperature inside the air conditioner may occur. Therefore, the cleaning degree of self-cleaning is accurately controlled, and the damage of the air conditioner caused by long-time operation of the air conditioner in the heating mode is prevented.

[0093] Optionally, the third duration threshold has a value range of 40 minutes to 50 minutes. The specific value of the third duration threshold includes 40 minutes, 45 minutes or 50 minutes.

[0094] Optionally, the sum of the first duration threshold and the third duration threshold is less than or equal to 90 minutes.

[0095] In this embodiment, the maximum value of the sum of the first duration threshold and the third duration threshold is set, to limit the maximum duration of the operating duration of the air conditioner in the heating mode, to prevent the air conditioner from being damaged due to excessively long duration of the air conditioner in the heating mode and excessively high temperature.

[0096] In some embodiments, in combination Figure 6 As shown in the figure, the embodiment of the present disclosure provides another control method for self-cleaning of an air conditioner, comprising:

[0097] S601, the processor controls the air conditioner to run in a heating mode and controls the fan to rotate in a first direction in response to a self-cleaning request.

[0098] S602, the processor acquires an operating parameter of the air conditioner.

[0099] S603, the processor controls the fan to rotate in a second direction in a case where the operating parameter meets a preset condition.

[0100] S604, the processor acquires a second coil temperature of an indoor heat exchanger.

[0101] S605, the processor times a second duration in which the second coil temperature is greater than or equal to a second temperature threshold.

[0102] S606, the processor exits the self-cleaning mode in a case where the second duration is greater than or equal to a fourth duration threshold.

[0103] The first direction is opposite to the second direction.

[0104] In this embodiment, by acquiring the second coil temperature of the indoor heat exchanger and timing the second duration in which the second coil temperature is greater than or equal to the second temperature threshold, the duration of the over-high coil temperature of the indoor heat exchanger is confirmed, preventing damage to the air conditioner caused by the over-long duration of the high coil temperature.

[0105] Further, in the case where the second duration is greater than or equal to the fourth duration threshold, it indicates that the degree of removal of bacteria and dust in the space between the indoor heat exchanger and the air inlet has reached the requirement, and then the self-cleaning mode is exited. This realizes accurate control of the cleaning degree of self-cleaning, and also prevents damage to the air conditioner caused by the over-long running of the air conditioner in the heating mode.

[0106] Optionally, the second temperature threshold has a value range of 56-60°C. The specific value of the second temperature threshold includes 56°C, 59°C or 60°C.

[0107] In this embodiment, by setting the second temperature threshold, the sterilization effect in the air conditioner is better in the case where the coil temperature is greater than or equal to the second temperature threshold, so as to realize high-temperature self-cleaning.

[0108] Optionally, the fourth duration threshold has a value range of 30-50 minutes. The specific value of the fourth duration threshold includes 30 minutes, 40 minutes or 50 minutes.

[0109] Optionally, the second temperature threshold is negatively correlated with the fourth time length threshold.

[0110] For example, when the second temperature threshold is 56℃, the fourth time length threshold is 50 minutes. When the second temperature threshold is 59℃, the fourth time length threshold is 40 minutes. When the second temperature threshold is 60℃, the fourth time length threshold is 30 minutes.

[0111] Optionally, the sum of the second time length threshold and the fourth time length threshold is less than or equal to 90 minutes.

[0112] In this embodiment, by setting the maximum value of the sum of the second time length threshold and the fourth time length threshold, the maximum time length of the air conditioner in the heating mode is limited, preventing the air conditioner from running in the heating mode for too long, causing the temperature to be too high, and thus damaging the air conditioner.

[0113] Optionally, before the step of exiting the self-cleaning mode, the method further comprises: controlling the air conditioner to run in the cooling mode; obtaining the current indoor environment temperature; and in a case where the current indoor environment temperature is less than a preset temperature, controlling the air deflector to rotate by a preset angle, and controlling the fan to rotate in a first direction for a preset time length.

[0114] In this embodiment, by controlling the air conditioner to run in the cooling mode, the indoor heat exchanger is cooled to prevent the air conditioner from being damaged due to the high temperature of the indoor heat exchanger. In addition, in a case where the indoor environment temperature is less than a preset temperature, the air deflector is controlled to rotate by a preset angle to open the air outlet, and the fan is controlled to rotate in a first direction, which realizes the discharge of the residual heat in the air conditioner and provides the user with the heating function, thereby improving the user's experience.

[0115] Further, when the air conditioner runs in the heating mode, the outdoor heat exchanger cools to form frost. When the air conditioner runs in the cooling mode, the outdoor heat exchanger heats to melt the frost. By first frosting and then defrosting the outdoor heat exchanger, the defrosting water is used to clean the outdoor heat exchanger.

[0116] Optionally, the preset temperature has a value range of 18℃ to 22℃. The specific value of the preset temperature includes 18℃, 20℃ or 22℃.

[0117] Optionally, the preset time length has a value range of 30 seconds to 90 seconds. The specific value of the preset time length includes 30 seconds, 60 seconds or 90 seconds.

[0118] Optionally, after the step of exiting the self-cleaning mode, the method further comprises: obtaining the running state of the air conditioner before the air conditioner responds to the self-cleaning request; and controlling the air conditioner to restore the previous running state.

[0119] In this embodiment, by acquiring the operation state of the air conditioner before the air conditioner responds to the self-cleaning request, and controlling the air conditioner to restore the operation state before the self-cleaning request, the user does not need to control the air conditioner to start the operation state before the self-cleaning again, the operation steps are reduced, and the user experience is improved.

[0120] Specifically, in the case where the operation state of the air conditioner before the air conditioner responds to the self-cleaning request is the cooling mode, after exiting the self-cleaning mode, the air conditioner restores the operation of the cooling mode. In the case where the operation state of the air conditioner before the air conditioner responds to the self-cleaning request is the heating mode, after exiting the self-cleaning mode, the air conditioner restores the operation of the heating mode. In the case where the operation state of the air conditioner before the air conditioner responds to the self-cleaning request is the standby mode, after exiting the self-cleaning mode, the air conditioner restores the operation of the standby mode.

[0121] In some embodiments, in combination with Figure 7 As shown in the figure, the embodiment of the present disclosure provides another control method for self-cleaning of an air conditioner, comprising:

[0122] S701, the processor acquires the indoor environment temperature in response to a self-cleaning request.

[0123] S702, the processor controls the air conditioner to operate in the cooling mode and lasts for a preset time in the case where the indoor environment temperature is less than or equal to a preset environment temperature.

[0124] S703, the processor controls the air conditioner to operate in the heating mode, and controls the fan to rotate in a first direction.

[0125] S704, the processor acquires the operation parameter of the air conditioner.

[0126] S705, the processor controls the fan to rotate in a second direction in the case where the operation parameter meets a preset condition.

[0127] Wherein, the first direction is opposite to the second direction.

[0128] In this embodiment, after receiving the self-cleaning request, the indoor environment temperature is acquired to confirm the self-cleaning mode suitable for the current environment. In the case where the indoor environment temperature is less than or equal to a preset environment temperature, it indicates that the indoor environment temperature is relatively low, and high-temperature self-cleaning can be performed, and then the air conditioner is controlled to operate in the cooling mode first and then in the heating mode, and the fan operates at a first rotating speed. To achieve the condensate water generated by the cooling and heating, remove the bacteria and dust on the indoor heat exchanger, and improve the cleaning degree of self-cleaning.

[0129] Further, when the air conditioner operates in the heating mode, the fan is controlled to be turned on, so that the air flows through the indoor heat exchanger, the drying speed of the surface of the indoor heat exchanger is improved, and the damage of the indoor heat exchanger is prevented.

[0130] In a case where the indoor environment temperature is greater than the preset environment temperature, the current self-cleaning mode should be a normal self-cleaning mode.

[0131] In a case where the indoor environment temperature is greater than the preset environment temperature, at this time, since the indoor environment temperature is relatively high, the normal self-cleaning is run to reduce the influence on the indoor environment temperature caused by temperature rise. If the air conditioner performs self-cleaning at a high temperature again, it may cause the temperature to rise too fast, affect the continuous rise of the indoor environment temperature, and affect the user experience. Therefore, during the normal self-cleaning process, the indoor heat exchanger is first controlled to run in the cooling mode, and then the indoor heat exchanger is controlled to run in the heating mode and the fan runs at the second rotating speed.

[0132] Among them, the first rotating speed is less than the second rotating speed.

[0133] Specifically, when the outdoor unit is cooling, the rotating speed of the indoor unit fan is the second rotating speed, so that the indoor unit will not cause the temperature of the coil to be too high due to heating even when heating.

[0134] In some embodiments, in combination Figure 8 As shown in FIG. 8, the embodiment of the present disclosure provides another control method for self-cleaning of an air conditioner, comprising:

[0135] S801, the processor acquires the indoor environment temperature in response to a self-cleaning request.

[0136] S802, the processor controls the air conditioner to run in the cooling mode in a case where the indoor environment temperature is less than or equal to the preset environment temperature, and continues for a preset time.

[0137] S803, the processor controls the air conditioner to run in the heating mode, and controls the fan to rotate in a first direction.

[0138] S804, the processor acquires a first running duration of the fan rotating in the first direction.

[0139] S805, the processor controls the fan to rotate in a second direction in a case where the first running duration is greater than or equal to a first duration threshold.

[0140] S806, the processor acquires a first coil temperature of the indoor heat exchanger.

[0141] S807, the processor counts a first continuous duration in which the first coil temperature is greater than or equal to a first temperature threshold.

[0142] S808, the processor controls the fan to rotate in the second direction in a case where the first continuous duration is greater than or equal to a second duration threshold.

[0143] S809, the processor acquires a second running duration of the fan rotating in the second direction.

[0144] S810, the processor exits the self-cleaning mode in a case that the second runtime is greater than or equal to a third time threshold.

[0145] S811, the processor acquires a second coil temperature of the indoor heat exchanger.

[0146] S812, the processor times a second duration that the second coil temperature is greater than or equal to a second temperature threshold.

[0147] S813, the processor exits the self-cleaning mode in a case that the second duration is greater than or equal to a fourth time threshold.

[0148] In combination Figure 9 As shown in the figure, the embodiment of the present disclosure provides an air conditioner 100, which comprises a processor 900 and a memory 901. Optionally, the air conditioner 100 can further comprise a communication interface 902 and a bus 903. Wherein, the processor 900, the communication interface 902 and the memory 901 can complete mutual communication through the bus 903. The communication interface 902 can be used for information transmission. The processor 900 can invoke the logical instructions in the memory 901 to execute the control method for air conditioner self-cleaning of the above-mentioned embodiment.

[0149] In addition, the logical instructions in the memory 901 mentioned above can be realized in the form of a software function unit and sold or used as an independent product, which can be stored in a computer readable storage medium.

[0150] The memory 901 as a kind of computer readable storage medium can be used to store software programs, computer executable programs, such as the program instructions / modules corresponding to the method in the embodiment of the present disclosure. The processor 900 executes the program instructions / modules stored in the memory 901, thereby executing function application and data processing, i.e. realizing the control method for air conditioner self-cleaning in the above-mentioned embodiment.

[0151] The memory 901 can include a program storage area and a data storage area, wherein the program storage area can store an operating system, at least one application required by a function; the data storage area can store data created according to the use of the terminal device, etc. In addition, the memory 901 can include a high-speed random access memory, and can also include a non-volatile memory.

[0152] The embodiment of the present disclosure provides a computer readable storage medium, which stores computer executable instructions, and the computer executable instructions are set to execute the control method for air conditioner self-cleaning.

[0153] The computer readable storage medium described above can be a transitory computer readable storage medium or a non-transitory computer readable storage medium.

[0154] The technical solutions of the embodiments of the present disclosure can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes one or more instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method disclosed in the embodiments of the present disclosure. The aforementioned storage medium can be a non-transitory storage medium, including a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various media that can store program codes, or can be a transitory storage medium.

[0155] The above description and drawings sufficiently illustrate the embodiments of the present disclosure to enable one skilled in the art to practice them. Other embodiments can include structural, logical, electrical, process, and other changes. The embodiments represent only a few of the possible variations. Individual components and functions are optional unless explicitly required, and the order of operations can be changed. Parts and features of some embodiments can be included in or replace parts and features of other embodiments. Also, the words used in this application are used only to describe the embodiments and not to limit the claims. As used in the description of the embodiments and the claims, unless the context clearly requires otherwise, the singular forms "a," "an," and "the" are intended to include the plural forms as well. Similarly, the term "and / or" as used in this application refers to any and all possible combinations of one or more associated listed items. In addition, when used in this application, the term "comprise" and its variations "comprises" and / or comprises" and the like mean the presence of the stated features, integers, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. Without more limitations, the element defined by the phrase "comprising a" does not exclude the presence of additional identical elements in the process, method, or device including the stated element. In this document, each embodiment focuses on the differences from other embodiments, and the same or similar parts between various embodiments can be referred to each other. For the method, product, etc. disclosed in the embodiments, if it corresponds to the method part disclosed in the embodiments, the relevant part can be referred to the description of the method part.

[0156] Those skilled in the art can understand that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be realized by electronic hardware or a combination of computer software and electronic hardware. Whether the functions are realized in hardware or software depends on the specific application and design constraints of the technical solution. The skilled person can use different methods for each specific application to realize the described functions, but such implementation should not be considered beyond the scope of the embodiments of the present disclosure. The skilled person can clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described system, device and unit can refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

[0157] In the embodiments disclosed herein, the disclosed methods, products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the above-described device embodiments are only schematic, for example, the division of the units can only be a logical function division, and actual implementation can have another division manner, for example, a plurality of 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 the units shown or discussed can be indirect coupling or communication connection through some interface, device or unit, and can be electrical, mechanical or other forms. The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, that is, they can be located in one place, or can be distributed on a plurality of network units. Part or all of the units can be selected according to actual needs to implement the embodiments. In addition, each functional unit in the embodiments of the present disclosure can be integrated in one processing unit, or each unit can be a physically independent unit, or two or more units can be integrated in one unit.

[0158] The computer program instructions can also be loaded onto a computer, other programmable data processing apparatus, or other processing device to cause a series of operational steps to be performed on the computer, other programmable apparatus or other processing device to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide processes for implementing the functions / acts specified in the flowchart and / or block diagram block or blocks.

Claims

1. A control method for self-cleaning of an air conditioner, the method comprising: The air conditioner comprises an indoor heat exchanger, and the control method comprises: In response to a self-cleaning request, an indoor environment temperature is obtained; in a case where the indoor environment temperature is less than or equal to a preset environment temperature, the air conditioner is controlled to run in a cooling mode, and the air conditioner is controlled to run in a heating mode for a preset time, and a fan is controlled to rotate in a first direction; A first running duration of the fan rotating in the first direction is obtained; in a case where the first running duration is greater than or equal to a first duration threshold, the fan is controlled to rotate in a second direction; A first coil temperature of the indoor heat exchanger is obtained; a first continuous duration during which the first coil temperature is greater than or equal to a first temperature threshold is timed; in a case where the first continuous duration is greater than or equal to a second duration threshold, the fan is controlled to rotate in the second direction; wherein the first direction is opposite to the second direction; A second coil temperature of the indoor heat exchanger is obtained; A second continuous duration during which the second coil temperature is greater than or equal to a second temperature threshold is timed; In a case where the second continuous duration is greater than or equal to a fourth duration threshold, the self-cleaning mode is exited.

2. The control method according to claim 1, characterized by, After the step of controlling the fan to rotate in the second direction, the method further comprises: A second running duration of the fan rotating in the second direction is obtained; In a case where the second running duration is greater than or equal to a third duration threshold, the self-cleaning mode is exited.

3. An air conditioner comprising a processor and a memory having stored therein program instructions, wherein, The processor is configured to execute the control method for air conditioner self-cleaning according to claim 1 or 2 when the program instructions are executed.

4. A storage medium storing program instructions, characterized in that, The program instructions, when executed, perform the control method for air conditioner self-cleaning according to claim 1 or 2.

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