Air conditioner, self-cleaning control method thereof and computer readable storage medium

Abstract

The application provides an air conditioner and a self-cleaning control method thereof and a computer readable storage medium. The self-cleaning control method comprises: controlling an indoor fan of the air conditioner to operate reversely in a condensation working phase of a self-cleaning mode of the air conditioner. The application aims to solve the technical problem that in the prior art, condensation water slides down, so that the condensation water on the fins of an indoor heat exchanger becomes less, and thus the self-cleaning effect of the air conditioner is poor.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioners, in particular to an air conditioner, a self-cleaning control method thereof and a computer readable storage medium. BACKGROUND

[0002] During the operation of the air conditioner, the air in the indoor environment is subjected to heat exchange through the indoor heat exchanger. During the heat exchange process, the dust in the air will gradually adhere to the surface of the indoor heat exchanger fins as the use time is prolonged. The coverage of dust on the indoor heat exchanger fins will reduce the heat conduction performance of the indoor heat exchanger, and thus reduce the heat exchange effect. Therefore, in order to ensure the heat exchange effect of the indoor heat exchanger of the indoor unit, the indoor heat exchanger is usually subjected to regular cleaning treatment. The indoor heat exchanger is often cleaned in a self-cleaning manner.

[0003] After the air conditioner enters the self-cleaning mode, it goes through three stages of condensation, frosting and defrosting. During the condensation stage, condensation water adheres to the indoor heat exchanger fins. During the frosting stage, the condensation water adhering to the indoor heat exchanger fins is frosted. During the defrosting stage, the frost adhering to the indoor heat exchanger fins is melted away, taking away the dust on the indoor heat exchanger fins. The frost thickness affects the self-cleaning effect of the air conditioner. The smaller the frost thickness, the poorer the self-cleaning effect. The frost thickness is affected by the amount of condensation water.

[0004] However, the condensation water in the condensation stage of the air conditioner self-cleaning will slide down along the indoor heat exchanger fins under the action of its own gravity, resulting in less water. The reduction of water quantity will reduce the frost thickness in the frosting stage, and thus result in a decrease in the cleaning effect. SUMMARY

[0005] The present application provides an air conditioner, a self-cleaning control method thereof and a computer readable storage medium, aiming at solving the technical problem that the condensation water slides down in the prior art, resulting in less condensation water on the indoor heat exchanger fins, and thus resulting in poor self-cleaning effect of the air conditioner.

[0006] In a first aspect, the present application provides a self-cleaning control method of an air conditioner, which comprises:

[0007] In the condensation working stage of the air conditioner in the self-cleaning mode, the indoor fan of the air conditioner is controlled to operate reversely.

[0008] Optionally, the control of the indoor fan of the air conditioner to operate reversely in the condensation working stage of the air conditioner in the self-cleaning mode comprises:

[0009] acquiring the temperature of the indoor heat exchanger;

[0010] control the indoor fan of the air conditioner to operate reversely when the temperature of the indoor heat exchanger is lower than a first preset value in the condensation working phase of the air conditioner in the self-cleaning mode;

[0011] control the indoor fan of the air conditioner to stop operating when the air conditioner enters a frosting phase of the self-cleaning mode.

[0012] Optionally, the control of the indoor fan of the air conditioner to operate reversely when the temperature of the indoor heat exchanger is lower than a first preset value comprises:

[0013] if the temperature of the indoor heat exchanger is lower than the first preset value and greater than a second preset value, control the indoor fan of the air conditioner to operate reversely at a first rotating speed;

[0014] if the temperature of the indoor heat exchanger is less than or equal to the second preset value, control the indoor fan of the air conditioner to operate reversely at a second rotating speed;

[0015] wherein the first rotating speed is less than the second rotating speed.

[0016] Optionally, if the temperature of the indoor heat exchanger is lower than the first preset value and greater than the second preset value, control the indoor fan of the air conditioner to operate reversely at the first rotating speed until the temperature of the indoor heat exchanger is less than or equal to the second preset value;

[0017] and control the rotating speed of the indoor fan of the air conditioner to increase from the first rotating speed to the second rotating speed when the temperature of the indoor heat exchanger is less than or equal to the second preset value.

[0018] Optionally, the second preset value is a dew point temperature of air in a normal pressure state.

[0019] Optionally, the first rotating speed is 400-600 r / min, and the second rotating speed is 800-1200 r / min.

[0020] Optionally, the control of the indoor fan of the air conditioner to operate reversely in the condensation working phase of the air conditioner in the self-cleaning mode comprises:

[0021] control the indoor fan of the air conditioner to stop operating first when the temperature of the indoor heat exchanger is higher than or equal to a first preset value, and then control the indoor fan of the air conditioner to operate reversely when the temperature of the indoor heat exchanger is lower than the first preset value.

[0022] Optionally, the self-cleaning control method further comprises:

[0023] When the temperature of the indoor heat exchanger of the air conditioner is lower than a third preset value and the indoor fan of the air conditioner reverses rotation for a set time, the indoor fan is controlled to stop running, and the air conditioner enters a frosting stage.

[0024] In a second aspect, the application further provides an air conditioner, comprising: an indoor heat exchanger, an indoor fan and a controller; the controller is electrically connected with the indoor fan;

[0025] The controller is configured to control the indoor fan of the air conditioner to reverse rotation in a condensation working stage of the air conditioner in a self-cleaning mode.

[0026] In a third aspect, the application further provides a computer readable storage medium, and the computer readable storage medium stores a computer program, and the computer program is executed by the controller to perform the steps in the self-cleaning control method.

[0027] In the technical scheme of the embodiments of the application, when the indoor fan reverses rotation, the airflow reverses and is opposite to that when the indoor fan rotates forward, and the wind force generated by the indoor fan at least has a component opposite to the direction of gravity. The reverse rotation of the indoor fan is used in a condensation stage of the air conditioner in a self-cleaning stage, so that the condensation water generated can offset the gravity of the condensation water by using the wind force generated by the reverse rotation of the indoor fan, so that more condensation water is gathered on the fins of the indoor heat exchanger, thereby avoiding the loss of condensation water due to gravity, to increase the amount of condensation water on the fins of the indoor heat exchanger, so that when the air conditioner enters a frosting stage, the frost thickness on the fins of the indoor heat exchanger is thicker, to improve the self-cleaning effect. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical schemes in the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments description. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without any creative effort based on these drawings.

[0029] Figure 1 is a flowchart of the self-cleaning control method of the air conditioner provided in the embodiments of the application;

[0030] Figure 2 is a specific flowchart of step S100 of the self-cleaning control method of the air conditioner in the embodiments of the application;

[0031] Figure 3 is still another specific flowchart of step S100 of the self-cleaning control method of the air conditioner in the embodiments of the application;

[0032] Figure 4is another specific flowchart of step S100 of the control method of the self-cleaning of the air conditioner in the embodiments of the present application;

[0033] Figure 5 is a flowchart of step S120 of the control method of the self-cleaning of the air conditioner in the embodiments of the present application;

[0034] Figure 6 is still another flowchart of the control method of the self-cleaning of the air conditioner provided in the embodiments of the present application;

[0035] Figure 7 is a structural diagram of the air conditioner in the embodiments of the present application. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without any creative work fall within the scope of protection of the present application.

[0037] In the description of the present application, it should be understood that the terms "first", "second" are used only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0038] In the present application, the word "exemplary" is used to mean "serving as an example, instance, or illustration". Any implementation described as "exemplary" in the present application is not necessarily to be construed as preferred or advantageous over other implementations. It should also be understood that, in the specific embodiments of the present application, the data related to user information, user data, etc. When the above embodiments of the present application are applied to specific products or technologies, the user's permission or consent is required, and the collection, use and processing of related data need to comply with relevant laws, regulations and standards of the country and region.

[0039] The following description is presented to enable any person skilled in the art to practice the application as claimed. In the following description, for purposes of explanation, specific details are set forth to provide a thorough understanding of the application. It will be apparent to one skilled in the art, however, that the application can be practiced without using these specific details. In other instances, well-known structures and processes are not elaborated in order not to obscure the description of the application with unnecessary details. Thus, the present application is not intended to be limited by the embodiments shown, but is to be accorded with the widest scope consistent with the principles and features disclosed.

[0040] The embodiments of the present application provide an air conditioner, a self-cleaning control method and a computer storage medium.

[0041] In the technical scheme of the embodiments of the present application, the air conditioner comprises an indoor unit, an outdoor unit and a controller. The indoor unit comprises an indoor heat exchanger and an indoor fan arranged corresponding to the indoor heat exchanger. The outdoor unit comprises an outdoor heat exchanger, an outdoor fan arranged corresponding to the outdoor heat exchanger and a compressor. The outdoor unit or the indoor unit further comprises a throttling device. The compressor, the outdoor heat exchanger, the throttling device and the indoor heat exchanger are connected in sequence through a refrigerant pipeline to form a refrigerant circulation system of the air conditioner to realize refrigeration or heating. It should be noted that the refrigerant circulation system can be provided with more components according to actual needs in addition to the above components, which will not be described in detail here. The throttling device is used to realize the refrigeration or heating function of the air conditioner, and can also be used to realize switching between refrigeration and heating of the air conditioner. For example, the throttling device comprises a four-way valve.

[0042] In the embodiments of the present application, the indoor fan is configured to have two working modes of forward rotation and reverse rotation. When the indoor fan rotates forward, it is used to blow out the air exchanged with the indoor heat exchanger from the air outlet of the indoor unit to realize the adjustment of the indoor air. When the indoor fan rotates reversely, the airflow is opposite to that when the indoor fan rotates forward, and the wind force generated thereby has at least a component opposite to the direction of gravity. For example, when the indoor fan is configured to rotate forward, the direction of the air flow generated thereby is arranged at an acute angle with the direction of gravity or in the same direction as the direction of gravity; thus, when the indoor fan rotates reversely, the direction of the air flow generated thereby is arranged at an obtuse angle with the direction of gravity or in the opposite direction to the direction of gravity, so that the wind force generated thereby has at least a component opposite to the direction of gravity.

[0043] In the technical scheme of the embodiments of the present application, the reverse movement of the indoor fan is used in the condensation stage of the self-cleaning phase of the air conditioner to enable the wind force generated by the reverse rotation of the indoor fan to offset the gravity of the condensate water, so that more condensate water is accumulated on the indoor heat exchanger, thereby avoiding the loss of the entangled condensate water due to gravity, to increase the amount of condensate water on the indoor heat exchanger, so that the frost thickness of the indoor heat exchanger is thicker when the air conditioner enters the frosting stage, to improve the self-cleaning effect.

[0044] In the technical solution of the embodiment of the present application, the indoor fan can control the rotation direction of the impeller by an alternating current motor.

[0045] In addition, it should be noted that when the air conditioner is in the condensation stage of self-cleaning, the air conditioner is in a refrigeration operation state, the compressor, the outdoor fan and the throttling device are in a refrigeration working state, and the indoor heat exchanger is in an evaporative state to absorb heat and the outdoor heat exchanger is in a condensing state to release heat, so that the air around the indoor heat exchanger is cooled, and the water vapor in the air is converted into condensation water and adheres to the indoor heat exchanger. In the following, when the air conditioner is in the condensation stage of self-cleaning, the control method of self-cleaning of the air conditioner is not involved in the control of the working state of the compressor, the outdoor fan and the throttling device, and they are all understood as being in a refrigeration working state, and their working parameters can remain unchanged or can be automatically adjusted adaptively according to the temperature of the indoor heat exchanger (for example, the opening degree of the throttling device, the frequency of the compressor or the rotating speed of the outdoor fan, etc. to match the temperature of the indoor heat exchanger).

[0046] Specifically, as shown in Figure 1 The embodiment of the present application provides a self-cleaning control method of an air conditioner, which specifically comprises:

[0047] S100, in the condensation working stage of the air conditioner in the self-cleaning mode, the indoor fan of the air conditioner is controlled to operate reversely.

[0048] In the technical solution of the embodiment of the present application, when the indoor fan reversely rotates, the airflow reversely rotates, which is opposite to the airflow when the indoor fan rotates forwardly, and the wind force generated by the indoor fan at least has a component opposite to the direction of gravity. The reverse rotation of the indoor fan is used in the condensation stage of the air conditioner in the self-cleaning stage, so that the condensation water generated can use the wind force generated by the reverse rotation of the indoor fan to offset the gravity of the condensation water, so that more condensation water is accumulated on the fins of the indoor heat exchanger, thereby avoiding the loss of condensation water due to gravity, so as to increase the amount of condensation water on the fins of the indoor heat exchanger, so that when the air conditioner enters the frosting stage, the frost thickness on the fins of the indoor heat exchanger is thicker, so as to improve the self-cleaning effect.

[0049] In some embodiments, the air conditioner can automatically enter the self-cleaning mode, such as by measuring the air outlet speed to determine whether it enters the self-cleaning mode (the air outlet speed is small, the indoor heat exchanger is seriously polluted, the set air speed is preset, and when the measured air speed is lower than the air speed preset value, the air conditioner can automatically enter the self-cleaning mode), or by measuring the running time of the air conditioner to determine whether it enters the self-cleaning mode (the longer the running time, the greater the probability of indoor heat exchanger being polluted, such as setting the air conditioner to automatically enter the self-cleaning mode after cumulative running for a period of time), or by measuring the dust thickness on the indoor heat exchanger to determine whether it enters the self-cleaning mode (setting the thickness preset value, and when the measured thickness exceeds the thickness preset value, the air conditioner can automatically enter the self-cleaning mode).

[0050] In some other embodiments, the air conditioner can also enter the self-cleaning mode after receiving the self-cleaning instruction. For example, the user can send the self-cleaning instruction to the air conditioner through the remote control, or send the self-cleaning instruction to the air conditioner through the APP / mini program.

[0051] In some other embodiments, the air conditioner can be configured to automatically enter the self-cleaning mode and enter the self-cleaning mode after receiving the self-cleaning instruction.

[0052] As an optional implementation of the above embodiments, as shown in Figure 2 In the condensation working phase of the air conditioner in the self-cleaning mode, the control of the indoor fan of the air conditioner in reverse operation includes:

[0053] S110, obtaining the temperature of the indoor heat exchanger;

[0054] S120, in the condensation working phase of the air conditioner in the self-cleaning mode, and when the temperature of the indoor heat exchanger is lower than the first preset value, the indoor fan of the air conditioner is controlled to operate in reverse;

[0055] S130, in the frosting phase of the air conditioner in the self-cleaning mode, the indoor fan of the air conditioner is controlled to stop operating.

[0056] In an embodiment, when the air conditioner enters the condensation phase of the self-cleaning mode, the indoor heat exchanger is in a heat absorption state, the temperature of the indoor heat exchanger gradually cools down, the air around the indoor heat exchanger gradually cools down, and the water vapor in the air gradually accumulates on the indoor heat exchanger. When the temperature of the indoor heat exchanger is lower than the first preset value, the water vapor in the air is converted into a certain amount of condensation water, and at this time the indoor fan of the air conditioner is controlled to operate in reverse to make the wind generated by the indoor fan overcome the gravity of the condensation water, so as to keep the condensation water on the indoor heat exchanger and avoid the loss of the condensation water.

[0057] In some scenarios, when the air conditioner itself switches from the refrigeration state to the self-cleaning mode, the temperature of the indoor heat exchanger is lower than the first preset value, and there is a certain amount of condensate water around the indoor heat exchanger; at this time, when the air conditioner enters the condensation phase in the self-cleaning mode, the indoor fan of the air conditioner starts to operate in reverse.

[0058] In some scenarios, when the air conditioner itself switches from the refrigeration state to the self-cleaning mode, the temperature of the indoor heat exchanger is lower than the first preset value, and there is a certain amount of condensate water around the indoor heat exchanger; at this time, when the air conditioner enters the condensation phase in the self-cleaning mode, the indoor fan of the air conditioner starts to operate in reverse.

[0059] As an optional embodiment of the above embodiment, as shown in Figure 3 The control of the indoor fan of the air conditioner to operate in reverse in the condensation working phase of the air conditioner in the self-cleaning mode includes:

[0060] S123, when the temperature of the indoor heat exchanger is higher than or equal to the first preset value, control the indoor fan of the air conditioner to stop operating first, until the temperature of the indoor heat exchanger is lower than the first preset value, and then control the indoor fan of the air conditioner to operate in reverse.

[0061] For example, when the air conditioner switches from the heating working state to the self-cleaning mode, the temperature of the indoor heat exchanger is higher than or equal to the first preset value, at this time in the condensation phase of the self-cleaning mode, the indoor fan of the air conditioner stops operating first, so that the air around the indoor heat exchanger can be rapidly cooled, the water vapor in the air is quickly condensed into condensate water, and when the temperature of the indoor heat exchanger gradually decreases to the first preset value, the indoor fan starts to operate in reverse, at this time the condensate water is gathered on the indoor heat exchanger under the action of the suction force of the indoor fan.

[0062] For example, when an air conditioner switches from cooling mode to self-cleaning mode, the temperature of the indoor heat exchanger is higher than the first preset value when the air conditioner is in cooling mode. During the condensation stage of self-cleaning mode, the indoor fan of the air conditioner stops running, allowing the air around the indoor heat exchanger to cool down rapidly. The water vapor in the air quickly condenses into condensate. As the temperature of the indoor heat exchanger gradually decreases to the first preset value, the indoor fan starts to run in reverse. At this time, the condensate is drawn off by the suction of the indoor fan, overcoming the influence of gravity, and accumulates on the indoor heat exchanger.

[0063] The above embodiments aim to address the following: when the air conditioner enters self-cleaning mode, if the temperature of the indoor heat exchanger is higher or lower than a first preset value, on the one hand, since there is less condensation around the indoor heat exchanger, the indoor fan does not need to reverse, thus saving energy; on the other hand, the indoor fan is in a stopped state, and the indoor heat exchanger cools the relatively still air, causing it to cool down rapidly and generate condensation, accelerating the formation of condensation and improving self-cleaning efficiency; the indoor fan will only be turned on to reverse when the amount of condensation reaches a certain value, i.e., when the temperature of the indoor heat exchanger is lower than the first preset value.

[0064] In the above embodiments, the first preset value is set according to the specific requirements of the air conditioner's cooling efficiency and the amount of condensate needed, and is generally set between 25-30°C. It should be noted that the first preset value can be updated by the user, for example, adjusted from 28°C to 30°C, or from 30°C to 28°C.

[0065] like Figure 4 As shown, as an optional implementation of the above embodiment, controlling the indoor fan of the air conditioner to reverse operation when the temperature of the indoor heat exchanger is lower than a first preset value includes:

[0066] S121, if the temperature of the indoor heat exchanger is lower than the first preset value and higher than the second preset value, then control the indoor fan of the air conditioner to run in reverse at the first speed.

[0067] S122, if the temperature of the indoor heat exchanger is less than or equal to the second preset value, then control the indoor fan of the air conditioner to run in reverse at the second speed;

[0068] Wherein, the first rotational speed is less than the second rotational speed.

[0069] In this embodiment, the speed of the indoor fan can be adjusted by the temperature of the indoor heat exchanger, so that the suction power of the indoor fan can match the amount of condensation.

[0070] In this embodiment, when the air conditioner enters the condensation stage of the self-cleaning mode, the temperature of the indoor heat exchanger may be between the first preset value and the second preset value, or it may be lower than or equal to the second preset value, or it may be higher than the first preset value (as explained in the foregoing embodiments).

[0071] When the air conditioner enters the condensation stage of self-cleaning mode, if the temperature of the indoor heat exchanger is lower than a first preset value and higher than a second preset value, or if the temperature of the indoor heat exchanger decreases from above the first preset value to between the second and first preset values, the indoor fan of the air conditioner is controlled to reverse at a first speed. When the temperature of the indoor heat exchanger is lower than the first preset value and higher than the second preset value, the amount of condensation is relatively small, and the required suction is smaller. Therefore, it reverses at a smaller first speed, and the condensation is continuously condensed from the surrounding water vapor as it accumulates on the indoor heat exchanger. In this embodiment, the indoor fan of the air conditioner can reverse at the first speed until the frosting stage begins, or it can reverse at the first speed until the temperature of the indoor heat exchanger decreases to the second preset value, and then reverse at the second speed until the frosting stage begins.

[0072] When the temperature of the indoor heat exchanger is equal to or lower than a second preset value, the indoor fan of the air conditioner is controlled to run in reverse at a second speed. The lower the temperature of the indoor heat exchanger, the more condensation occurs, and the greater the suction required. At this time, the indoor fan runs in reverse at a higher second speed to avoid condensation loss. In this embodiment, the indoor fan of the air conditioner can run in reverse at the second speed until the frosting stage begins.

[0073] like Figure 5 As shown, as an optional implementation of the above embodiment, in S1211, if the temperature of the indoor heat exchanger is lower than the first preset value and greater than the second preset value, the indoor fan of the air conditioner is controlled to run in reverse at the first speed until the temperature of the indoor heat exchanger is less than or equal to the second preset value.

[0074] S1221 When the temperature of the indoor heat exchanger is less than or equal to the second preset value, the speed of the indoor fan of the air conditioner is controlled to increase from the first speed to the second speed and then reverse.

[0075] That is, when the temperature of the indoor heat exchanger is lower than the first preset value and greater than the second preset value or the temperature of the indoor heat exchanger decreases from being higher than the first preset value to between the second preset value and the first preset value during the condensation stage of the air conditioner entering the self-cleaning mode, the indoor fan of the air conditioner is controlled to operate reversely at the first rotating speed; when the temperature of the indoor heat exchanger is lower than the first preset value and greater than the second preset value, the amount of condensation water is relatively small, and thus the required suction is small, so that the indoor fan is reversely operated at the first rotating speed, and the condensation water is continuously condensed from the surrounding water vapor when gathering on the indoor heat exchanger. When the temperature of the indoor heat exchanger continuously decreases to be lower than or equal to the second preset value, the condensation water gradually increases, and the required suction becomes large, so that the indoor fan of the air conditioner reversely operates from the first rotating speed to the second rotating speed, the suction is increased, the loss of condensation water is avoided, and the frosting stage starts.

[0076] In some application scenarios, when the air conditioner enters the condensation stage of the self-cleaning mode, the temperature of the indoor heat exchanger is higher than the first preset value, the indoor heat exchanger is cooled, the indoor fan stops operating, and the condensation water gradually generates (the initial stage of condensation); when the temperature of the indoor heat exchanger is lower than the first preset value and greater than the second preset value, the indoor heat exchanger is still cooled, the indoor fan reversely operates at the first rotating speed, the generated suction overcomes the gravity of the condensation water, and the condensation water is well gathered on the indoor heat exchanger (the middle stage of condensation); when the temperature of the indoor heat exchanger is lower than or equal to the first preset value, the indoor heat exchanger is still cooled, and the gathered condensation water is more and more, the indoor fan reversely operates at the second rotating speed, the generated suction overcomes the gravity of the condensation water, and the condensation water is well gathered on the indoor heat exchanger (the late stage of condensation).

[0077] In the above embodiments, the operating state of the indoor fan is controlled through the temperature of the indoor heat exchanger, and then the indoor fan is controlled according to the amount of condensation water in detail, so that the self-cleaning time is shortened, the self-cleaning efficiency is improved, and unnecessary energy consumption is reduced.

[0078] As an optional implementation manner of the above embodiments, the second preset value is the dew point temperature of air in a normal pressure state. In the embodiments, the second preset value being the dew point temperature of air in a normal pressure state can be understood as being set near the dew point temperature of air in a normal pressure state, so as to reduce the loss amount of condensation water and improve the self-cleaning efficiency. The user can update the second preset value.

[0079] As an optional implementation of the above embodiment, the first rotating speed is 400-600 r / min, and the second rotating speed is 800-1200 r / min. In the embodiment, the first rotating speed can correspond to a low gear of the air conditioner, and the second rotating speed can correspond to a high gear of the air conditioner. For example, the first rotating speed can be 450 r / min, 500 r / min, or 550 r / min. The second rotating speed can be 900 r / min, 1000 r / min, or 1100 r / min. In the embodiment, when the temperature of the indoor heat exchanger is between the second preset value and the first preset value, the first rotating speed can relatively steadily increase in the range of 400-600 r / min, for example, from 400 r / min to 600 r / min, as the running time increases. In the embodiment, when the temperature of the indoor heat exchanger is lower than the second preset value, the first rotating speed can relatively steadily increase in the range of 800-1200 r / min, for example, from 800 r / min to 1200 r / min, as the running time increases. Of course, in the embodiment, when the temperature of the indoor heat exchanger is between the second preset value and the first preset value, the indoor fan can run at a certain specific rotating speed, for example, 480 r / min. Of course, in the embodiment, when the temperature of the indoor heat exchanger is lower than the second preset value, the indoor fan can run at a certain specific rotating speed, for example, 1080 r / min.

[0080] As an optional implementation of the above embodiment, as shown in Figure 6 In the condensation working phase of the air conditioner in the self-cleaning mode, after the indoor fan of the air conditioner is controlled to run reversely, the self-cleaning control method further includes:

[0081] S200, when the temperature of the indoor heat exchanger of the air conditioner is lower than a third preset value and the indoor fan of the air conditioner runs reversely for a set time, the indoor fan is controlled to stop running, and the air conditioner enters a frosting phase.

[0082] In the embodiment, when the air conditioner enters the condensation phase in the self-cleaning mode, the temperature of the indoor heat exchanger gradually decreases to the third preset value through the reverse running of the indoor fan for a period of time, the indoor heat exchanger starts frosting (condensed water condenses into solid state), and the indoor fan of the air conditioner is reversely run for a period of time when the temperature of the indoor heat exchanger gradually decreases to the third preset value, so as to ensure that the condensed water is not lost, the indoor fan is controlled to be turned off, the air conditioner enters the frosting phase, the condensed water condenses into solid state, and the frosting thickness meets the requirement of self-cleaning.

[0083] In the above embodiments, the third preset value is at least the temperature at which water can be converted into a solid state. Its specific value is a conventional setting in the art and will not be elaborated upon here. The reverse operation setting time of the indoor fan of the air conditioner is such that after the temperature of the indoor heat exchanger of the air conditioner drops below the third preset value, the indoor fan still needs to reverse operation for a set time to prevent loss of condensate before it is converted into a solid state during the initial stage of frosting, thus improving the self-cleaning time. The setting time is specifically set by the user, such as half a minute, one minute, 75 seconds, etc.

[0084] In other embodiments, the steps in the prior art can be used to determine whether the air conditioner needs to move from the condensation stage to the defrosting stage, which will not be elaborated on here.

[0085] In this embodiment, after frosting is completed, the air conditioner enters the self-cleaning defrosting stage to melt the frost on the indoor heat exchanger, thereby achieving self-cleaning of the indoor heat exchanger. The specific steps of defrosting and frosting can employ conventional techniques in the art, which are not the focus of this application's improvement and will not be elaborated upon here.

[0086] Specifically, this application provides an air conditioner for implementing the self-cleaning control method for the air conditioner proposed in this application, such as... Figure 7 As shown, it illustrates a structural schematic diagram of the air conditioner involved in the embodiments of this application, specifically:

[0087] The air conditioner may include components such as a controller 401 with one or more processing cores, a memory 402 with one or more computer-readable storage media, a power supply 403, and an input unit 404. Those skilled in the art will understand that... Figure 7 The air conditioner structure shown does not constitute a limitation on the air conditioner and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0088] in:

[0089] The controller 401 is the control center of the air conditioner, and connects all parts of the air conditioner through various interfaces and lines, and performs various functions and processes data of the air conditioner by running or executing software programs and / or modules stored in the memory 402 and calling data stored in the memory 402, thereby monitoring the air conditioner as a whole. Optionally, the controller 401 can include one or more processing cores; the controller 401 can be a central processing unit (CPU), and can also be other general-purpose controllers, digital signal processors (DSPs), application specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The general-purpose controller can be a microcontroller, or the controller can also be any conventional controller, etc. Preferably, the controller 401 can integrate an application controller and a modem controller, wherein the application controller mainly processes operating systems, user interfaces, and application programs, etc., and the modem controller mainly processes wireless communication. It can be understood that the above-mentioned modem controller can also not be integrated into the controller 401.

[0090] The memory 402 can be used to store software programs and modules, and the controller 401 executes various function applications and data processing by running the software programs and modules stored in the memory 402. The memory 402 can mainly include a program storage area and a data storage area, wherein the program storage area can store operating systems, application programs required by at least one function; and the data storage area can store data created according to the use of the air conditioner, etc. In addition, the memory 402 can include a high-speed random access memory, and can also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state memory device. Accordingly, the memory 402 can also include a memory controller to provide access of the controller 401 to the memory 402.

[0091] The air conditioner further includes a power supply 403 for supplying power to various components, and preferably the power supply 403 can be logically connected to the controller 401 through a power management system, thereby realizing functions of managing charging, discharging, and power consumption management, etc. through the power management system. The power supply 403 can also include one or more than one direct current or alternating current power supply, a recharging system, a power failure detection circuit, a power converter or inverter, a power state indicator, etc. any component.

[0092] The air conditioner can also include an input unit 404 that can be used to receive inputted digital or character information, and to generate remote controller, keyboard, mouse, joystick, optical or trackball signal inputs and user terminal inputs related to user settings and function controls.

[0093] Although not shown, the air conditioner can also include a display unit, etc., which will not be described here. In particular in the present embodiment, the controller 401 in the air conditioner will load the executable file corresponding to the process of one or more than one application program into the memory 402 according to the following instructions, and run the application program stored in the memory 402 by the controller 401, thereby realizing various functions, such as:

[0094] In the condensation working phase of the self-cleaning mode of the air conditioner, the indoor fan of the air conditioner is controlled to operate reversely.

[0095] The indoor fan of the air conditioner is controlled to operate reversely in the condensation working phase of the self-cleaning mode of the air conditioner, which comprises:

[0096] The temperature of the indoor heat exchanger is acquired;

[0097] In the condensation working phase of the self-cleaning mode of the air conditioner, and when the temperature of the indoor heat exchanger is lower than a first preset value, the indoor fan of the air conditioner is controlled to operate reversely;

[0098] In the frosting phase of the self-cleaning mode of the air conditioner, the indoor fan of the air conditioner is controlled to stop operating.

[0099] If the temperature of the indoor heat exchanger is lower than the first preset value and greater than a second preset value, the indoor fan of the air conditioner is controlled to operate reversely at a first rotating speed;

[0100] If the temperature of the indoor heat exchanger is less than or equal to the second preset value, the indoor fan of the air conditioner is controlled to operate reversely at a second rotating speed;

[0101] The first rotating speed is less than the second rotating speed.

[0102] If the temperature of the indoor heat exchanger is lower than the first preset value and greater than the second preset value, the indoor fan of the air conditioner is controlled to operate reversely at the first rotating speed until the temperature of the indoor heat exchanger is less than or equal to the second preset value;

[0103] And when the temperature of the indoor heat exchanger is less than or equal to the second preset value, the rotating speed of the indoor fan of the air conditioner is controlled to increase from the first rotating speed to the second rotating speed reversely.

[0104] The second preset value is the dew point temperature of air under normal pressure.

[0105] The first rotation speed is 400-600 r / min, and the second rotation speed is 800-1200 r / min.

[0106] The reverse operation of the indoor fan of the air conditioner in the condensation working phase of the air conditioner in the self-cleaning mode includes:

[0107] When the temperature of the indoor heat exchanger is higher than or equal to a first preset value, the indoor fan of the air conditioner is first stopped until the temperature of the indoor heat exchanger is lower than the first preset value, and then the indoor fan of the air conditioner is controlled to operate reversely.

[0108] The self-cleaning control method further includes:

[0109] When the temperature of the indoor heat exchanger of the air conditioner is lower than a third preset value and the indoor fan of the air conditioner is reversely operated for a set time, the indoor fan is controlled to stop operating, and the air conditioner enters a frosting phase.

[0110] The specific implementation of each operation can refer to the foregoing embodiments, which will not be described here.

[0111] The air conditioner and the self-cleaning control method and the storage medium thereof provided by the embodiments of the present application are described in detail above, and the principles and implementation manners of the present application are described by applying specific examples in this paper; the above embodiment descriptions are only used to help understand the method and the core idea thereof; meanwhile, for those skilled in the art, the specific implementation manners and application ranges will be changed according to the idea of the present application; in conclusion, the content of the specification should not be understood as a limitation of the present application.

Claims

1. A self-cleaning control method for an air conditioner, characterized in that, The self-cleaning control method includes: During the condensation phase of the air conditioner's self-cleaning mode, the indoor fan of the air conditioner is controlled to reverse direction; wherein... During the condensation operation phase of the air conditioner in self-cleaning mode, controlling the indoor fan of the air conditioner to reverse includes: Obtain the temperature of the indoor heat exchanger; When the air conditioner is in the condensation working stage of self-cleaning mode, and when the temperature of the indoor heat exchanger is lower than the first preset value, the indoor fan of the air conditioner is controlled to run in reverse. When the air conditioner enters the frosting stage of self-cleaning mode, the indoor fan of the air conditioner is controlled to stop operating.

2. The self-cleaning control method as described in claim 1, characterized in that, The step of controlling the indoor fan of the air conditioner to reverse operation when the temperature of the indoor heat exchanger is lower than the first preset value includes: If the temperature of the indoor heat exchanger is lower than the first preset value and higher than the second preset value, the indoor fan of the air conditioner is controlled to run in reverse at the first speed. If the temperature of the indoor heat exchanger is less than or equal to the second preset value, the indoor fan of the air conditioner is controlled to run in reverse at the second speed. Wherein, the first rotational speed is less than the second rotational speed.

3. The self-cleaning control method as described in claim 2, characterized in that, If the temperature of the indoor heat exchanger is lower than the first preset value and higher than the second preset value, the indoor fan of the air conditioner is controlled to run in reverse at the first speed until the temperature of the indoor heat exchanger is less than or equal to the second preset value. When the temperature of the indoor heat exchanger is less than or equal to the second preset value, the speed of the indoor fan of the air conditioner is controlled to increase from the first speed to the second speed and then reverse.

4. The self-cleaning control method as described in claim 2 or 3, characterized in that, The second preset value is the dew point temperature of air under normal pressure.

5. The self-cleaning control method as described in claim 2 or 3, characterized in that, The first rotational speed is 400~600 r / min, and the second rotational speed is 800-1200 r / min.

6. The self-cleaning control method as described in claim 1, characterized in that, During the condensation phase of the air conditioner in self-cleaning mode, controlling the indoor fan of the air conditioner to reverse includes: When the temperature of the indoor heat exchanger is higher than or equal to a first preset value, the indoor fan of the air conditioner is controlled to stop running until the temperature of the indoor heat exchanger is lower than the first preset value, and then the indoor fan of the air conditioner is controlled to run in reverse.

7. The self-cleaning control method as described in claim 1, characterized in that, During the condensation phase of the air conditioner's self-cleaning mode, after controlling the indoor fan of the air conditioner to reverse, the self-cleaning control method further includes: When the temperature of the indoor heat exchanger of the air conditioner is lower than the third preset value and the indoor fan of the air conditioner reverses the operation for a set time, the indoor fan is controlled to stop operating, and the air conditioner enters the frosting stage.

8. An air conditioner, characterized in that, include: Indoor heat exchangers, indoor fans, and controllers; The controller is electrically connected to the indoor fan. The controller is configured to control the indoor fan of the air conditioner to reverse during the condensation working phase of the air conditioner in self-cleaning mode. Wherein, during the condensation operation phase of the air conditioner in self-cleaning mode, controlling the indoor fan of the air conditioner to reverse operation includes: Obtain the temperature of the indoor heat exchanger; When the air conditioner is in the condensation working stage of self-cleaning mode, and when the temperature of the indoor heat exchanger is lower than the first preset value, the indoor fan of the air conditioner is controlled to run in reverse. When the air conditioner enters the frosting stage of self-cleaning mode, the indoor fan of the air conditioner is controlled to stop operating.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that is executed by the controller to implement the steps of the self-cleaning control method according to any one of claims 1 to 7.

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