An air conditioner self-cleaning control method, device, air conditioner and storage medium

Abstract

The application discloses a kind of self-cleaning control method, device, air conditioner and storage medium of air conditioner, the air conditioner includes: compressor, indoor heat exchanger, outdoor heat exchanger and throttling device;Indoor heat exchanger has inner fan and air deflector, and outdoor heat exchanger has outer fan;The method comprises: after air conditioner opens self-cleaning mode, under the condensation frost stage, according to indoor and outdoor environment temperature, the operating frequency of compressor is controlled, and the on-off state of inner fan, the operating state of outer fan and the on-off state of air deflector are controlled;Under the stage of defrosting, according to outdoor environment temperature, the operating frequency of compressor is controlled, and the throttling degree of throttling device and the operating state of outer fan are controlled.The scheme, through the condensation frost stage and defrosting stage of air conditioner self-cleaning mode, makes the oil dirt in air conditioner indoor machine fall off, realizes the self-cleaning of air conditioner, avoids the occurrence dirty and is affected the performance of air conditioner, improves the operation reliability of air conditioner.

Description

Technical Field

[0001] This invention belongs to the field of air conditioning technology, specifically relating to a self-cleaning control method, device, air conditioner, and storage medium for an air conditioner, and particularly to a self-cleaning control method, device, air conditioner, and storage medium for oil stains in a single-cooling air conditioner. Background Technology

[0002] As people's living standards improve and their requirements for the cooking environment increase, kitchen air conditioning is needed to maintain a comfortable room temperature, allowing people to cook in a warm and comfortable environment. However, in the kitchen environment, grease easily adheres to the heat exchanger of the indoor unit of the kitchen air conditioner, causing blockage and affecting the performance of the air conditioner.

[0003] The above content is only used to help understand the technical solution of the present invention and does not represent an admission that the above content is prior art. Summary of the Invention

[0004] The purpose of this invention is to provide a self-cleaning control method, device, air conditioner, and storage medium for air conditioners, in order to solve the problem in related solutions where oil stains easily adhere to the heat exchanger of the indoor unit of a kitchen air conditioner, causing blockage and affecting the performance of the air conditioner. This invention achieves self-cleaning by using the condensation and defrosting stages of the air conditioner's self-cleaning mode to remove oil stains from the indoor unit, thus preventing blockage and improving the reliability of the air conditioner's operation.

[0005] This invention provides a self-cleaning control method for an air conditioner. The air conditioner includes a compressor, an indoor heat exchanger, an outdoor heat exchanger, and a throttling device. The indoor heat exchanger has an indoor fan and an air guide plate, and the outdoor heat exchanger has an outdoor fan. The indoor fan operates in a first direction, enabling air to exit from the air inlet of the indoor heat exchanger and enter from the air outlet. The air conditioner has a self-cleaning mode, which includes a condensation / frost stage and a defrosting stage. The self-cleaning mode can clean the deposits inside the indoor heat exchanger. The method includes: after the air conditioner activates the self-cleaning mode, acquiring the indoor ambient temperature and the outdoor ambient temperature; during the condensation / frost stage, controlling the operating frequency of the compressor, and controlling the on / off state of the indoor fan, the operating state of the outdoor fan, and the on / off state of the air guide plate based on the indoor ambient temperature and the outdoor ambient temperature; during the defrosting stage, controlling the operating frequency of the compressor, and controlling the throttling degree of the throttling device and the operating state of the outdoor fan based on the outdoor ambient temperature.

[0006] In some embodiments, before entering the condensation and frosting stage, the method further includes: controlling the air conditioner to operate in a ventilation mode, the air guide plate to be in an open state, the internal fan to run at a set first internal fan speed and in a first direction, and controlling the air conditioner to run for a first set time in this state.

[0007] In some embodiments, during the condensation and frosting stage, the operating frequency of the compressor is controlled based on the indoor and outdoor ambient temperatures, and the on / off states of the indoor fan, the outdoor fan, and the air guide plate are also controlled. This includes: determining a first target operating frequency for the compressor based on the temperature range of the indoor ambient temperature within a first temperature range and the temperature range of the outdoor ambient temperature within a second temperature range; controlling the indoor fan to stop operating, the outdoor fan to operate at a set first outdoor fan speed, the air guide plate to close, and the compressor to operate at the first target operating frequency; and controlling the air conditioner to operate for a second set time under this state.

[0008] In some embodiments, during the defrosting stage, the operating frequency of the compressor is controlled according to the outdoor ambient temperature, and the throttling degree of the throttling device and the operating state of the outdoor fan are controlled, including: determining a second target operating frequency of the compressor based on the temperature range in the second temperature range where the outdoor ambient temperature is located; controlling the outdoor fan to stop operating, the operating frequency of the compressor to be the second target operating frequency, and the throttling degree of the throttling device to be reduced, and controlling the air conditioner to operate for a third set time under this state.

[0009] In some embodiments, after the defrosting stage, the system further includes: controlling the air guide vane to be in an open state, the indoor fan to run at a set second indoor fan speed and a first direction, the throttling device to return to its previous throttling level, the outdoor fan to run at a set second outdoor fan speed, and the compressor to run at a set operating frequency; and controlling the air conditioner to run for a fourth set time in this state; and controlling the compressor to stop running, the outdoor fan to stop running, and the indoor fan to run at a set third indoor fan speed and a first direction; and controlling the air conditioner to run for a fifth set time in this state.

[0010] In conjunction with the above method, another aspect of the present invention provides a self-cleaning control device for an air conditioner, the air conditioner comprising: a compressor, an indoor heat exchanger, an outdoor heat exchanger, and a throttling device; the indoor heat exchanger having an indoor fan and an air guide plate, and the outdoor heat exchanger having an outdoor fan; the indoor fan, operating in a first direction, enables air to exit from the air inlet of the indoor heat exchanger and air to enter from the air outlet of the indoor heat exchanger; the air conditioner has a self-cleaning mode, the self-cleaning mode having a condensation and frosting stage and a defrosting stage, the self-cleaning mode being able to clean the deposits inside the indoor heat exchanger; the self-cleaning control device includes... The unit is configured to acquire the indoor and outdoor ambient temperatures after the air conditioner activates the self-cleaning mode; the control unit is configured to control the operating frequency of the compressor, the opening and closing status of the indoor fan, the operating status of the outdoor fan, and the opening and closing status of the air guide plate based on the indoor and outdoor ambient temperatures during the condensation and frosting stage; the control unit is further configured to control the operating frequency of the compressor, the throttling degree of the throttling device, and the operating status of the outdoor fan based on the outdoor ambient temperature during the defrosting stage.

[0011] In some embodiments, before entering the condensation and frosting stage, the control unit further includes: controlling the air conditioner to operate in a fan-blowing mode, the air guide vane to be in an open state, and the internal fan to run at a set first internal fan speed and in a first direction, and controlling the air conditioner to run for a first set time in this state.

[0012] In some embodiments, the control unit, during the condensation and frosting stage, controls the operating frequency of the compressor and the opening and closing states of the indoor fan, the outdoor fan, and the air guide plate according to the indoor ambient temperature and the outdoor ambient temperature. This includes: determining a first target operating frequency of the compressor based on the temperature range of the indoor ambient temperature within a first temperature range and the temperature range of the outdoor ambient temperature within a second temperature range; controlling the indoor fan to stop operating, the outdoor fan to operate at a set first outdoor fan speed, the air guide plate to close, and the compressor to operate at the first target operating frequency; and controlling the air conditioner to operate for a second set time under this state.

[0013] In some embodiments, during the defrosting phase, the control unit controls the operating frequency of the compressor and the throttling degree of the throttling device and the operating state of the outdoor fan based on the outdoor ambient temperature, including: determining a second target operating frequency of the compressor based on the temperature range in the second temperature range where the outdoor ambient temperature falls; controlling the outdoor fan to stop operating, the operating frequency of the compressor to be the second target operating frequency, and the throttling degree of the throttling device to decrease; and controlling the air conditioner to operate for a third set time under this state.

[0014] In some embodiments, after the defrosting stage, the control unit further includes: controlling the air guide vane to be in an open state, the indoor fan to run at a set second indoor fan speed and a first direction, the throttling device to return to its previous throttling level, the outdoor fan to run at a set second outdoor fan speed, and the compressor to run at a set operating frequency; and controlling the air conditioner to run for a fourth set time in this state; and controlling the compressor to stop running, the outdoor fan to stop running, and the indoor fan to run at a set third indoor fan speed and a first direction; and controlling the air conditioner to run for a fifth set time in this state.

[0015] In conjunction with the above-described device, the present invention further provides an air conditioner, comprising: the self-cleaning control device for the air conditioner described above.

[0016] In conjunction with the above method, the present invention further provides a storage medium comprising a stored program, wherein, when the program is executed, it controls the device containing the storage medium to perform the self-cleaning control method for the air conditioner described above.

[0017] The present invention, after the air conditioner activates its self-cleaning mode, controls the compressor's operating frequency, the operation of the indoor fan, the operation of the outdoor fan, and the opening and closing of the air guide vanes based on the indoor and outdoor ambient temperatures during the condensation and frosting phase. During the defrosting phase, it controls the compressor's operating frequency, the degree of throttling by the throttling device, and the operation of the outdoor fan based on the outdoor ambient temperature. By having frost adhere to oil stains and then melting the frost during the defrosting phase to remove the oil stains from the indoor heat exchanger, the air conditioner achieves self-cleaning of oil stains, solving the problem of clogging caused by oil stains and improving the operational reliability of the air conditioner.

[0018] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention.

[0019] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0020] Figure 1 This is a schematic flowchart of an embodiment of the self-cleaning control method for an air conditioner according to the present invention;

[0021] Figure 2 This is a schematic flowchart of an embodiment of the method of the present invention, which reduces the amount of liquid refrigerant in the storage tank and avoids water blowing in the indoor heat exchanger.

[0022] Figure 3 This is a schematic diagram of the structure of an embodiment of the self-cleaning control device for an air conditioner according to the present invention;

[0023] Figure 4 This is a schematic diagram of a system structure of the air conditioner of the present invention;

[0024] Figure 5 This is a schematic flowchart illustrating an embodiment of the self-cleaning mode process of the air conditioner according to the present invention.

[0025] Figure 6 This is a logic diagram illustrating the determination of the target operating frequency of the compressor according to the present invention.

[0026] Referring to the accompanying drawings, the reference numerals in the embodiments of the present invention are as follows:

[0027] 102 - Acquisition unit; 104 - Control unit. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0029] According to an embodiment of the present invention, a self-cleaning control method for an air conditioner is provided. The air conditioner includes: a compressor, an indoor heat exchanger, an outdoor heat exchanger, and a throttling device; the indoor heat exchanger has an indoor fan and an air guide plate, and the outdoor heat exchanger has an outdoor fan. Specifically, as... Figure 4The air conditioning system structure shown is a single-cooling air conditioner, meaning the refrigerant flow is unidirectional, only flowing from the outdoor unit heat exchanger to the indoor unit heat exchanger. The throttling device is a parallel structure of a two-way valve and a capillary tube. Initially, the two-way valve is closed, and only the capillary tube throttles the refrigerant at a fixed opening. Optionally, this throttling device can also be an electronic expansion valve. The indoor fan, running in the first direction, allows air to exit from the inlet of the indoor heat exchanger and enter from the outlet. The air conditioner has a self-cleaning mode, which includes a condensation / frost stage and a defrost stage, and can clean the deposits inside the indoor heat exchanger. Figure 1 The diagram shows a flowchart of an embodiment of the method of the present invention. The self-cleaning control method for this air conditioner may include steps S110 to S130.

[0030] In step S110, after the air conditioner turns on the self-cleaning mode, the indoor ambient temperature and the outdoor ambient temperature are obtained.

[0031] In step S120, during the condensation and frosting stage, the operating frequency of the compressor is controlled according to the indoor ambient temperature and the outdoor ambient temperature, and the opening and closing status of the indoor fan, the operating status of the outdoor fan, and the opening and closing status of the air guide plate are also controlled.

[0032] In some embodiments, before entering the condensation and frosting stage, a pretreatment process for the deposits inside the indoor heat exchanger is included. Specifically, this process involves controlling the air conditioner's operating mode to air supply mode, setting the air guide vane to the open state, and having the indoor fan operate at a set first indoor fan speed and in a first direction. Under this state, the air conditioner is then controlled to operate for a first set time.

[0033] After activating the self-cleaning mode, before condensation and frosting occur, the air conditioner is switched to fan mode. In fan mode, the compressor does not operate, and the indoor fan is controlled at speed R. 内转1 The air conditioner operates in the opposite direction, allowing air to exit from the inlet and enter from the outlet of the indoor heat exchanger. In this mode, the air conditioner blows moisture from the indoor heat exchanger out through the inlet, while simultaneously forming a cohesive layer of deposits within the heat exchanger. This allows for easier and more thorough frosting during the subsequent process, resulting in a more complete cleaning. Furthermore, exiting from the inlet prevents water from being blown out of the air conditioner.

[0034] In some embodiments, step S120, during the condensation and frosting stage, involves controlling the operating frequency of the compressor and the opening and closing states of the indoor fan, the operating states of the outdoor fan, and the opening and closing states of the air guide plate based on the indoor and outdoor ambient temperatures. This process includes steps S210 and S220.

[0035] Step S210: Determine the first target operating frequency of the compressor based on the range of the indoor ambient temperature within the first temperature range and the range of the outdoor ambient temperature within the second temperature range.

[0036] The compressor's operating frequency is determined based on the indoor and outdoor ambient temperatures, specifically as follows: Figure 6 As shown, the outdoor ambient temperature T 外环 The second range can be divided into: less than or equal to T 外环1 Greater than T 外环1 And less than or equal to T 外环2 Greater than T 外环2 And less than or equal to T 外环3 Greater than T 外环3 And less than or equal to T 外环4 Greater than T 外环4 According to the outdoor ambient temperature T 外环 The range of temperature T is further determined based on the indoor ambient temperature T. 内环 The operating frequency of the compressor is determined by the range of temperature T. 内环 The first range can be divided into: less than or equal to T 内环1 Greater than T 内环1 And less than or equal to T 内环2 Greater than T 内环2 Specifically, in T 外环 ≤T 外环1 In the case of T 内环 ≤T 内环1 The compressor's first target operating frequency is f1-Δf1; at T 外环 ≤T 外环1 In the case of T 内环1 <T 内环 ≤T 内环2 The compressor's first target operating frequency is f1; in T 外环 ≤T 外环1 In the case of T 内环2 <T 内环 The compressor's first target operating frequency is f1 + Δf2. At T... 外环1 <T 外环 ≤T 外环2 In the case of T 内环 ≤T 内环1 The compressor's first target operating frequency is f2-Δf1; at T 外环1 <T 外环 ≤T 外环2 In the case of T 内环1 <T 内环 ≤T 内环2The compressor's first target operating frequency is f2; at T 外环1 <T 外环 ≤T 外环2 In the case of T 内环2 <T 内环 The compressor's first target operating frequency is f2 + Δf2. At T 外环2 <T 外环 ≤T 外环3 In the case of T 内环 ≤T 内环1 The compressor's first target operating frequency is f3-Δf1; at T 外环2 <T 外环 ≤T 外环3 In the case of T 内环1 <T 内环 ≤T 内环2 The compressor's first target operating frequency is f3; in T 外环2 <T 外环 ≤T 外环3 In the case of T 内环2 <T 内环 The compressor's first target operating frequency is f3 + Δf2. At T 外环3 <T 外环 ≤T 外环4 In the case of T 内环 ≤T 内环1 The compressor's first target operating frequency is f4-Δf1; at T 外环3 <T 外环 ≤T 外环4 In the case of T 内环1 <T 内环 ≤T 内环2 The compressor's first target operating frequency is f4; in T 外环3 <T 外环 ≤T 外环4 In the case of T 内环2 <T 内环 The compressor's first target operating frequency is f4 + Δf2. At T 外环4 <T 外环 In the case of T 内环 ≤T 内环1 The compressor's first target operating frequency is f5-Δf1; at T 外环4 <T 外环 In the case of T 内环1 <T 内环 ≤T 内环2 The compressor's first target operating frequency is f5; in T 外环4 <T 外环 In the case of T 内环2 <T 内环The compressor's first target operating frequency is f5 + Δf2. Here, Δf1 and Δf2 are frequency correction values.

[0037] Step S220: Control the indoor fan to stop running, the outdoor fan to run at the set first outdoor fan speed, the air guide plate to close, and the compressor to run at the first target operating frequency. Under this state, control the air conditioner to run for a second set time.

[0038] During the condensation and frosting stage, to ensure that the deposits adhere to the interior of the indoor heat exchanger along with the frost layer, the internal temperature of the indoor heat exchanger needs to be rapidly reduced. Therefore, the indoor fan is stopped and the air deflectors are closed to prevent heat exchange between the indoor heat exchanger and the indoor air. Simultaneously, the outdoor fan is controlled to operate at the set first outdoor fan speed R. 外转1 During operation, the compressor runs at a predetermined target frequency. By precisely controlling the compressor's operating frequency, not only is condensation and frost formation achieved inside the indoor heat exchanger, but the normal operation of the air conditioner is also prevented from being affected by excessively low temperatures inside the indoor heat exchanger.

[0039] In step S130, during the defrosting stage, the operating frequency of the compressor is controlled according to the outdoor ambient temperature, and the throttling degree of the throttling device and the operating status of the external fan are also controlled.

[0040] To clean the deposits inside the indoor heat exchanger, after activating the self-cleaning mode, the system first goes through a condensation and frosting stage, causing the deposits and frost to adhere to the inside of the indoor heat exchanger. Then, during the defrosting stage, the high-temperature refrigerant heats the inside of the indoor heat exchanger, causing the deposits and frost to detach from the inside of the indoor heat exchanger. This achieves self-cleaning of the air conditioner and solves the problem of dirt and blockage in the indoor heat exchanger, which leads to a decrease in air conditioner performance.

[0041] In some embodiments, step S130, during the defrosting stage, involves controlling the operating frequency of the compressor, the degree of throttling of the throttling device, and the operating status of the external fan based on the outdoor ambient temperature. This process includes steps S310 and S320.

[0042] Step S310: Determine the second target operating frequency of the compressor based on the temperature range within the second temperature range where the outdoor ambient temperature falls.

[0043] Specifically, when T 外环 ≤T 外环1 The compressor's second target operating frequency is f6; when T 外环1 <T 外环 ≤T 外环2 The compressor's second target operating frequency is f7; when T 外环2 <T 外环≤T 外环3 The compressor's second target operating frequency is f8; when T 外环3 <T 外环 ≤T 外环4 The compressor's second target operating frequency is f9; when T 外环＞ T 外环4 The second target operating frequency of the compressor is f10.

[0044] Step S320: Control the outdoor fan to stop running, the compressor to operate at the second target operating frequency, and reduce the throttling degree of the throttling device. Under this state, control the air conditioner to run for a third set time.

[0045] During the defrosting phase, to remove frost and deposits from the interior of the indoor heat exchanger, the internal temperature needs to be increased. Therefore, to raise the temperature of the refrigerant flowing into the indoor heat exchanger, the outdoor fan is stopped to prevent condensation of the high-temperature refrigerant from the compressor. Simultaneously, the throttling effect of the throttling device is reduced, such as... Figure 4 As shown, by opening the two-way valve, high-temperature refrigerant flows through the two-way valve branch, while only a small portion of the refrigerant flows through the capillary tube branch. This reduces the degree of throttling, ensuring that the refrigerant temperature after passing through the throttling device does not drop too much. Consequently, the temperature of the refrigerant flowing into the indoor heat exchanger is increased, thus initiating the defrosting operation. Furthermore, the compressor frequency is controlled based on the outdoor ambient temperature, thereby controlling the refrigerant temperature flowing into the indoor heat exchanger. This achieves defrosting while preventing excessively high internal temperatures in the indoor heat exchanger from affecting the normal operation of the air conditioner.

[0046] In some implementations, after the defrosting stage in step S130, the process further includes reducing the amount of liquid refrigerant in the storage tank and avoiding water blowing from the indoor heat exchanger. For example... Figure 2 As shown, the process specifically includes steps S410 and S420.

[0047] Step S410: Control the air guide plate to be in the open state, the internal fan to run at the set second internal fan speed and the first direction, the throttling device to return to the throttling level before reduction, the external fan to run at the set second external fan speed, and the compressor to run at the set operating frequency. Under this state, control the air conditioner to run for a fourth set time.

[0048] During the self-cleaning process, especially the defrosting stage, the liquid refrigerant cannot effectively evaporate because the indoor heat exchanger does not exchange heat with the ambient air. This leads to an increase in liquid refrigerant in the receiver tank at the compressor inlet, affecting the reliability of the air conditioner. Therefore, after the defrosting stage is completed, it is necessary to reduce the liquid refrigerant content in the receiver tank. Specifically, the indoor and outdoor fans are controlled to operate normally, and the throttling device is restored to its previous throttling level, allowing the air conditioner to operate in normal cooling mode for a period of time to reduce the liquid refrigerant in the receiver tank. Simultaneously, since there is still liquid water produced after defrosting in the indoor heat exchanger, to avoid affecting users, the indoor fan needs to be reversed so that the air conditioner blows air out from the air inlet, expelling the water and thus not affecting the user's activity area.

[0049] Step S420: Control the compressor to stop running, control the outdoor fan to stop running, and control the indoor fan to run at a set third indoor fan speed and in a first direction. In this state, control the air conditioner to run for a fifth set time. Wherein, the third indoor fan speed > the first indoor fan speed > the second indoor fan speed. The first to fifth set times are specifically set according to the actual situation of the air conditioner and are related to the compressor displacement, the size and specifications of the indoor and outdoor heat exchangers.

[0050] After the air conditioner has been running in normal cooling mode for a period of time, the amount of liquid refrigerant in the receiver tank will decrease. Once this decrease is no longer affecting the reliability of the air conditioner's operation, the compressor and outdoor fan can be turned off. However, during the process of reducing the amount of liquid refrigerant in the receiver tank while the air conditioner is running in normal cooling mode, condensate will be generated in the indoor heat exchanger. Therefore, to prevent the condensate from being blown out of the air outlet and affecting users, it is necessary to control the indoor fan to run in reverse so that the condensate is blown out of the air inlet.

[0051] Figure 5 This is a schematic flowchart of an embodiment of the self-cleaning mode process of the air conditioner of the present invention, as shown below. Figure 5 As shown, the self-cleaning mode process of the air conditioner of the present invention includes:

[0052] Step 1: After receiving the signal to activate the self-cleaning mode, the air conditioner first controls itself to operate in fan mode, and the indoor fan operates at speed R. 内转1 The air conditioner operates in the opposite direction, with the air guide vanes of the indoor heat exchanger in a horizontal position. In this state, the air conditioner runs for time t1, after which step 2 is executed.

[0053] Step 2: Control the internal fan to stop running, the air guide plate to be in the closed state, and the external fan to operate at speed R. 外转1 The system operates and controls the compressor frequency to F1 based on the current indoor and outdoor ambient temperatures. In this state, the air conditioner runs for time t2, after which step 3 is executed.

[0054] Step 3: Control the two-way valve to open to reduce the throttling effect of the throttling device, stop the outdoor fan, and control the compressor frequency to F2 according to the current outdoor ambient temperature. In this state, control the air conditioner to run for t3 hours, and then proceed to step 4.

[0055] Step 4: Control the air guide plate to be in a horizontal position, and the internal fan to rotate at speed R. 内转2 Reverse rotation closes the two-way valve to restore the throttling effect of the throttling device to its previous level, and the outdoor fan operates at speed R. 外转2 The compressor operates at frequency F3. Among them, R... 外转2 <R 外转1 In this state, control the air conditioner to run for time t4, and then proceed to step 5.

[0056] Step 5: Control the compressor to stop running, the outdoor fan to stop running, and the indoor fan to run at speed R. 内转3 The system will operate in the opposite direction. In this state, the air conditioner will run for t5 hours, after which the internal fan will stop running, and the self-cleaning mode will end.

[0057] Using the technical solution of this embodiment, after the air conditioner activates its self-cleaning mode, during the condensation and frosting stage, the compressor's operating frequency, the opening and closing status of the indoor fan, the operating status of the outdoor fan, and the opening and closing status of the air guide plate are controlled according to the indoor and outdoor ambient temperatures. During the defrosting stage, the compressor's operating frequency, the degree of throttling by the throttling device, and the operating status of the outdoor fan are controlled according to the outdoor ambient temperature. Thus, by having frost adhere to oil stains and using the defrosting stage to melt the frost and remove the oil stains from the indoor heat exchanger, the air conditioner achieves self-cleaning of oil stains, solving the problem of clogging caused by oil stains and improving the operational reliability of the air conditioner.

[0058] According to an embodiment of the present invention, a self-cleaning control device for an air conditioner corresponding to a self-cleaning control method for an air conditioner is also provided. The air conditioner includes: a compressor, an indoor heat exchanger, an outdoor heat exchanger, and a throttling device; the indoor heat exchanger has an indoor fan and an air guide plate, and the outdoor heat exchanger has an outdoor fan. Specifically, as... Figure 4 The air conditioning system structure shown is a single-cooling type, meaning the refrigerant flow is unidirectional, only flowing from the outdoor unit heat exchanger to the indoor unit heat exchanger. The throttling device is a parallel structure of a two-way valve and a capillary tube. Initially, the two-way valve is closed, and only the capillary tube throttles the refrigerant at a fixed opening. Optionally, this throttling device can also be an electronic expansion valve. The indoor fan, operating in a first direction, allows air to exit from the inlet of the indoor heat exchanger and enter from the outlet. The air conditioner has a self-cleaning mode, which includes a condensation / frost stage and a defrost stage, effectively cleaning deposits inside the indoor heat exchanger. See also... Figure 3 The diagram shows a structural schematic of an embodiment of the device of the present invention. The self-cleaning control device for the air conditioner may include: an acquisition unit 102 and a control unit 104.

[0059] The acquisition unit 102 is configured to acquire the indoor ambient temperature and the outdoor ambient temperature after the air conditioner activates the self-cleaning mode. The specific functions and processing of the acquisition unit 102 are described in step S110.

[0060] Control unit 104 is configured to, during the condensation and frosting stage, control the operating frequency of the compressor based on the indoor and outdoor ambient temperatures, and control the on / off state of the indoor fan, the operating state of the outdoor fan, and the on / off state of the air guide vane. The specific functions and processing of this control unit 104 are described in step S120.

[0061] In some embodiments, the control unit further includes pre-treating the deposits inside the indoor heat exchanger before entering the condensation and frosting stage. Specifically, the control unit 104 is further configured to control the air conditioner to operate in a fan-supply mode, with the air guide vane in an open state, and the indoor fan running at a set first indoor fan speed and in a first direction, and to control the air conditioner to run for a first set time in this state.

[0062] After activating the self-cleaning mode, before condensation and frosting occur, the air conditioner is switched to fan mode. In fan mode, the compressor does not operate, and the indoor fan is controlled at speed R. 内转1 The air conditioner operates in the opposite direction, allowing air to exit from the inlet and enter from the outlet of the indoor heat exchanger. In this mode, the air conditioner blows moisture from the indoor heat exchanger out through the inlet, while simultaneously forming a cohesive layer of deposits within the heat exchanger. This allows for easier and more thorough frosting during the subsequent process, resulting in a more complete cleaning. Furthermore, exiting from the inlet prevents water from being blown out of the air conditioner.

[0063] In some embodiments, the control unit 104, during the condensation and frosting stage, controls the operating frequency of the compressor based on the indoor ambient temperature and the outdoor ambient temperature, and controls the on / off state of the indoor fan, the operating state of the outdoor fan, and the on / off state of the air guide plate, including:

[0064] The control unit 104 is further configured to determine a first target operating frequency of the compressor based on the temperature range within a first temperature range and the temperature range within a second temperature range of the outdoor ambient temperature. The specific functions and processing of this control unit 104 are described in step S210.

[0065] The compressor's operating frequency is determined based on the indoor and outdoor ambient temperatures, specifically as follows: Figure 6 As shown, the outdoor ambient temperature T 外环 The second range can be divided into: less than or equal to T 外环1 Greater than T 外环1 And less than or equal to T 外环2 Greater than T 外环2 And less than or equal to T 外环3 Greater than T 外环3 And less than or equal to T 外环4 Greater than T 外环4 According to the outdoor ambient temperature T 外环 The range of temperature T is further determined based on the indoor ambient temperature T. 内环 The operating frequency of the compressor is determined by the range of temperature T. 内环 The first range can be divided into: less than or equal to T 内环1 Greater than T 内环1 And less than or equal to T 内环2 Greater than T 内环2 Specifically, in T 外环 ≤T 外环1 In the case of T 内环 ≤T 内环1 The compressor's first target operating frequency is f1-Δf1; at T 外环 ≤T 外环1 In the case of T 内环1 <T 内环 ≤T 内环2 The compressor's first target operating frequency is f1; in T 外环 ≤T 外环1 In the case of T 内环2 <T 内环 The compressor's first target operating frequency is f1 + Δf2. At T... 外环1 <T 外环 ≤T 外环2 In the case of T 内环 ≤T 内环1 The compressor's first target operating frequency is f2-Δf1; at T 外环1 <T 外环 ≤T 外环2 In the case of T 内环1 <T 内环 ≤T 内环2 The compressor's first target operating frequency is f2; at T 外环1 <T 外环 ≤T 外环2 In the case of T 内环2 <T 内环 The compressor's first target operating frequency is f2 + Δf2. At T 外环2<T 外环 ≤T 外环3 In the case of T 内环 ≤T 内环1 The compressor's first target operating frequency is f3-Δf1; at T 外环2 <T 外环 ≤T 外环3 In the case of T 内环1 <T 内环 ≤T 内环2 The compressor's first target operating frequency is f3; in T 外环2 <T 外环 ≤T 外环3 In the case of T 内环2 <T 内环 The compressor's first target operating frequency is f3 + Δf2. At T 外环3 <T 外环 ≤T 外环4 In the case of T 内环 ≤T 内环1 The compressor's first target operating frequency is f4-Δf1; at T 外环3 <T 外环 ≤T 外环4 In the case of T 内环1 <T 内环 ≤T 内环2 The compressor's first target operating frequency is f4; in T 外环3 <T 外环 ≤T 外环4 In the case of T 内环2 <T 内环 The compressor's first target operating frequency is f4 + Δf2. At T 外环4 <T 外环 In the case of T 内环 ≤T 内环1 The compressor's first target operating frequency is f5-Δf1; at T 外环4 <T 外环 In the case of T 内环1 <T 内环 ≤T 内环2 The compressor's first target operating frequency is f5; in T 外环4 <T 外环 In the case of T 内环2 <T 内环 The compressor's first target operating frequency is f5 + Δf2. Here, Δf1 and Δf2 are frequency correction values.

[0066] The control unit 104 is further configured to control the indoor fan to stop running, the outdoor fan to run at a set first outdoor fan speed, the air guide plate to close, and the compressor to operate at the first target operating frequency. In this state, it also controls the air conditioner to run for a second set time. The specific functions and processing of this control unit 104 are described in step S220.

[0067] During the condensation and frosting stage, to ensure that the deposits adhere to the interior of the indoor heat exchanger along with the frost layer, the internal temperature of the indoor heat exchanger needs to be rapidly reduced. Therefore, the indoor fan is stopped and the air deflectors are closed to prevent heat exchange between the indoor heat exchanger and the indoor air. Simultaneously, the outdoor fan is controlled to operate at the set first outdoor fan speed R. 外转1 During operation, the compressor runs at a predetermined target frequency. By precisely controlling the compressor's operating frequency, not only is condensation and frost formation achieved inside the indoor heat exchanger, but the normal operation of the air conditioner is also prevented from being affected by excessively low temperatures inside the indoor heat exchanger.

[0068] The control unit 104 is also configured to, during the defrosting stage, control the operating frequency of the compressor according to the outdoor ambient temperature, and control the throttling degree of the throttling device and the operating status of the outdoor fan. For the specific functions and processing of the control unit 104, please refer to step S130.

[0069] To clean the deposits inside the indoor heat exchanger, after activating the self-cleaning mode, the system first goes through a condensation and frosting stage, causing the deposits and frost to adhere to the inside of the indoor heat exchanger. Then, during the defrosting stage, the high-temperature refrigerant heats the inside of the indoor heat exchanger, causing the deposits and frost to detach from the inside of the indoor heat exchanger. This achieves self-cleaning of the air conditioner and solves the problem of dirt and blockage in the indoor heat exchanger, which leads to a decrease in air conditioner performance.

[0070] In some embodiments, the control unit 104, during the defrosting stage, controls the operating frequency of the compressor and the throttling degree of the throttling device and the operating status of the outdoor fan according to the outdoor ambient temperature, including:

[0071] The control unit 104 is further configured to determine the second target operating frequency of the compressor based on the temperature range within the second temperature range where the outdoor ambient temperature falls. The specific functions and processing of this control unit 104 are described in step S310.

[0072] Specifically, when T 外环 ≤T 外环1 The compressor's second target operating frequency is f6; when T 外环1 <T 外环 ≤T 外环2 The compressor's second target operating frequency is f7; when T外环2 <T 外环 ≤T 外环3 The compressor's second target operating frequency is f8; when T 外环3 <T 外环 ≤T 外环4 The compressor's second target operating frequency is f9; when T 外环＞ T 外环4 The second target operating frequency of the compressor is f10.

[0073] The control unit 104 is further configured to control the outdoor fan to stop operating, the compressor to operate at the second target operating frequency, and the throttling degree of the throttling device to decrease. Under these conditions, the air conditioner is controlled to operate for a third set time. The specific functions and processing of this control unit 104 are described in step S320.

[0074] During the defrosting phase, to remove frost and deposits from the interior of the indoor heat exchanger, the internal temperature needs to be increased. Therefore, to raise the temperature of the refrigerant flowing into the indoor heat exchanger, the outdoor fan is stopped to prevent condensation of the high-temperature refrigerant from the compressor. Simultaneously, the throttling effect of the throttling device is reduced, such as... Figure 4 As shown, by opening the two-way valve, high-temperature refrigerant flows through the two-way valve branch, while only a small portion of the refrigerant flows through the capillary tube branch. This reduces the degree of throttling, ensuring that the refrigerant temperature after passing through the throttling device does not drop too much. Consequently, the temperature of the refrigerant flowing into the indoor heat exchanger is increased, thus initiating the defrosting operation. Furthermore, the compressor frequency is controlled based on the outdoor ambient temperature, thereby controlling the refrigerant temperature flowing into the indoor heat exchanger. This achieves defrosting while preventing excessively high internal temperatures in the indoor heat exchanger from affecting the normal operation of the air conditioner.

[0075] In some embodiments, the control unit 104, after the defrosting phase, further includes controlling the reduction of the liquid refrigerant level in the reservoir and preventing water blowing from the indoor heat exchanger. Specifically:

[0076] The control unit 104 is further configured to control the air guide vane to be in the open state, the indoor fan to run at a set second indoor fan speed and in the first direction, the throttling device to return to its previous throttling level, the outdoor fan to run at a set second outdoor fan speed, and the compressor to run at a set operating frequency. In this state, the control unit 104 is also configured to control the air conditioner to run for a fourth set time. For the specific functions and processing of this control unit 104, please refer to step S410.

[0077] During the self-cleaning process, especially the defrosting stage, the liquid refrigerant cannot effectively evaporate because the indoor heat exchanger does not exchange heat with the ambient air. This leads to an increase in liquid refrigerant in the receiver tank at the compressor inlet, affecting the reliability of the air conditioner. Therefore, after the defrosting stage is completed, it is necessary to reduce the liquid refrigerant content in the receiver tank. Specifically, the indoor and outdoor fans are controlled to operate normally, and the throttling device is restored to its previous throttling level, allowing the air conditioner to operate in normal cooling mode for a period of time to reduce the liquid refrigerant in the receiver tank. Simultaneously, since there is still liquid water produced after defrosting in the indoor heat exchanger, to avoid affecting users, the indoor fan needs to be reversed so that the air conditioner blows air out from the air inlet, expelling the water and thus not affecting the user's activity area.

[0078] The control unit 104 is further configured to control the compressor to stop running, the outdoor fan to stop running, and the indoor fan to run at a set third indoor fan speed and in a first direction. In this state, it controls the air conditioner to run for a fifth set time. The third indoor fan speed is greater than the first indoor fan speed, which is greater than the second indoor fan speed. The first to fifth set times are specifically set according to the actual situation of the air conditioner and are related to the compressor displacement, the size and specifications of the indoor and outdoor heat exchangers. For the specific functions and processing of the control unit 104, please refer to step S420.

[0079] After the air conditioner has been running in normal cooling mode for a period of time, the amount of liquid refrigerant in the receiver tank will decrease. Once this decrease is no longer affecting the reliability of the air conditioner's operation, the compressor and outdoor fan can be turned off. However, during the process of reducing the amount of liquid refrigerant in the receiver tank while the air conditioner is running in normal cooling mode, condensate will be generated in the indoor heat exchanger. Therefore, to prevent the condensate from being blown out of the air outlet and affecting users, it is necessary to control the indoor fan to run in reverse so that the condensate is blown out of the air inlet.

[0080] Figure 5 This is a schematic flowchart of an embodiment of the self-cleaning mode process of the air conditioner of the present invention, as shown below. Figure 5 As shown, the self-cleaning mode process of the air conditioner of the present invention includes:

[0081] Step 1: After receiving the signal to activate the self-cleaning mode, the air conditioner first controls itself to operate in fan mode, and the indoor fan operates at speed R. 内转1 The air conditioner operates in the opposite direction, with the air guide vanes of the indoor heat exchanger in a horizontal position. In this state, the air conditioner runs for time t1, after which step 2 is executed.

[0082] Step 2: Control the internal fan to stop running, the air guide plate to be in the closed state, and the external fan to operate at speed R. 外转1The system operates and controls the compressor frequency to F1 based on the current indoor and outdoor ambient temperatures. In this state, the air conditioner runs for time t2, after which step 3 is executed.

[0083] Step 3: Control the two-way valve to open to reduce the throttling effect of the throttling device, stop the outdoor fan, and control the compressor frequency to F2 according to the current outdoor ambient temperature. In this state, control the air conditioner to run for t3 hours, and then proceed to step 4.

[0084] Step 4: Control the air guide plate to be in a horizontal position, and the internal fan to rotate at speed R. 内转2 Reverse rotation closes the two-way valve to restore the throttling effect of the throttling device to its previous level, and the outdoor fan operates at speed R. 外转2 The compressor operates at frequency F3. Among them, R... 外转2 <R 外转1 In this state, control the air conditioner to run for time t4, and then proceed to step 5.

[0085] Step 5: Control the compressor to stop running, the outdoor fan to stop running, and the indoor fan to run at speed R. 内转3 The system will operate in the opposite direction. In this state, the air conditioner will run for t5 hours, after which the internal fan will stop running, and the self-cleaning mode will end.

[0086] Since the processing and functions implemented by the device in this embodiment are basically the same as the embodiments, principles and examples of the aforementioned methods, any details not covered in the description of this embodiment can be found in the relevant descriptions in the aforementioned embodiments, and will not be repeated here.

[0087] By employing the technical solution of this invention, after the air conditioner activates its self-cleaning mode, during the condensation and frosting stage, the operating frequency of the compressor, the on / off state of the indoor fan, the operating state of the outdoor fan, and the on / off state of the air guide plate are controlled according to the indoor and outdoor ambient temperatures. During the defrosting stage, the operating frequency of the compressor, the degree of throttling by the throttling device, and the operating state of the outdoor fan are controlled according to the outdoor ambient temperature. Thus, by having frost adhere to oil stains and using the defrosting stage to melt the frost and remove the oil stains from the indoor heat exchanger, the air conditioner achieves self-cleaning of oil stains, solving the problem of clogging caused by oil stains and improving the operational reliability of the air conditioner.

[0088] According to an embodiment of the present invention, an air conditioner corresponding to a self-cleaning control device for an air conditioner is also provided. This air conditioner may include the self-cleaning control device for an air conditioner described above.

[0089] Since the processing and functions implemented by the air conditioner in this embodiment are basically the same as the embodiments, principles and examples of the aforementioned device, any details not covered in the description of this embodiment can be found in the relevant descriptions in the aforementioned embodiments, and will not be repeated here.

[0090] By employing the technical solution of this invention, after the air conditioner activates its self-cleaning mode, during the condensation and frosting stage, the operating frequency of the compressor, the on / off state of the indoor fan, the operating state of the outdoor fan, and the on / off state of the air guide plate are controlled according to the indoor and outdoor ambient temperatures. During the defrosting stage, the operating frequency of the compressor, the degree of throttling by the throttling device, and the operating state of the outdoor fan are controlled according to the outdoor ambient temperature. Thus, by having frost adhere to oil stains and using the defrosting stage to melt the frost and remove the oil stains from the indoor heat exchanger, the air conditioner achieves self-cleaning of oil stains, solving the problem of clogging caused by oil stains and improving the operational reliability of the air conditioner.

[0091] According to an embodiment of the present invention, a storage medium corresponding to a self-cleaning control method for an air conditioner is also provided. The storage medium includes a stored program, wherein, when the program is executed, the device where the storage medium is located executes the self-cleaning control method for the air conditioner described above.

[0092] Since the processing and functions implemented by the storage medium in this embodiment are basically the same as the embodiments, principles and examples of the aforementioned methods, any details not covered in this embodiment can be found in the relevant descriptions in the aforementioned embodiments, and will not be repeated here.

[0093] By employing the technical solution of this invention, after the air conditioner activates its self-cleaning mode, during the condensation and frosting stage, the operating frequency of the compressor, the on / off state of the indoor fan, the operating state of the outdoor fan, and the on / off state of the air guide plate are controlled according to the indoor and outdoor ambient temperatures. During the defrosting stage, the operating frequency of the compressor, the degree of throttling by the throttling device, and the operating state of the outdoor fan are controlled according to the outdoor ambient temperature. Thus, by having frost adhere to oil stains and using the defrosting stage to melt the frost and remove the oil stains from the indoor heat exchanger, the air conditioner achieves self-cleaning of oil stains, solving the problem of clogging caused by oil stains and improving the operational reliability of the air conditioner.

[0094] In summary, it is readily understood by those skilled in the art that, without conflict, the aforementioned advantageous methods can be freely combined and superimposed.

[0095] The above description is merely an embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A self-cleaning control method for an air conditioner, characterized in that, The air conditioner includes: a compressor, an indoor heat exchanger, an outdoor heat exchanger, and a throttling device; a liquid storage tank is provided at the inlet of the compressor; the indoor heat exchanger has an internal fan and an air guide plate, and the outdoor heat exchanger has an external fan; the internal fan runs in a first direction to allow air to exit from the air inlet of the indoor heat exchanger and air to enter from the air outlet of the indoor heat exchanger; the air conditioner has a self-cleaning mode, which includes a condensation and frosting stage and a defrosting stage, and the self-cleaning mode can clean the deposits inside the indoor heat exchanger; the method includes: After the air conditioner activates the self-cleaning mode, the indoor ambient temperature and the outdoor ambient temperature are obtained. During the condensation and frosting stage, the operating frequency of the compressor is controlled according to the indoor ambient temperature and the outdoor ambient temperature, and the opening and closing status of the indoor fan, the operating status of the outdoor fan, and the opening and closing status of the air guide plate are also controlled. During the defrosting stage, the operating frequency of the compressor is controlled according to the outdoor ambient temperature, and the throttling degree of the throttling device and the operating status of the outdoor fan are also controlled. Following the defrosting stage, the process also includes: The air guide plate is controlled to be in the open state, the internal fan runs according to the set second internal fan speed and the first direction, the throttling device is restored to the throttling degree before reduction, the external fan runs according to the set second external fan speed, and the compressor runs at the set operating frequency. Under this state, the air conditioner is controlled to run for a fourth set time to reduce the liquid refrigerant in the liquid storage tank. The compressor and the outdoor fan are controlled to stop running, and the indoor fan is controlled to run at a set third indoor fan speed and in a first direction. In this state, the air conditioner is controlled to run for a fifth set time to prevent the condensate generated by the indoor heat exchanger from being blown out of the air outlet.

2. The self-cleaning control method for an air conditioner according to claim 1, characterized in that, Before entering the condensation and frosting stage, the following are also included: The air conditioner is controlled to operate in a fan-supply mode, with the air guide plate in the open state and the internal fan running at a set first internal fan speed and in a first direction. Under this state, the air conditioner is controlled to run for a first set time.

3. The self-cleaning control method for an air conditioner according to claim 1, characterized in that, During the condensation and frosting stage, the operating frequency of the compressor is controlled according to the indoor and outdoor ambient temperatures, and the on / off state of the indoor fan, the operating state of the outdoor fan, and the on / off state of the air guide vane are also controlled, including: The first target operating frequency of the compressor is determined based on the range of the indoor ambient temperature within the first temperature range and the range of the outdoor ambient temperature within the second temperature range. The system controls the indoor fan to stop running, the outdoor fan to run at a set first outdoor fan speed, the air guide plate to close, and the compressor to run at the first target operating frequency. Under these conditions, the system controls the air conditioner to run for a second set time.

4. The self-cleaning control method for an air conditioner according to claim 1, characterized in that, During the defrosting stage, the operating frequency of the compressor is controlled according to the outdoor ambient temperature, and the throttling degree of the throttling device and the operating status of the outdoor fan are also controlled, including: The second target operating frequency of the compressor is determined based on the temperature range within the second temperature range where the outdoor ambient temperature falls. The system controls the outdoor fan to stop running, the compressor to operate at the second target operating frequency, and the throttling effect of the throttling device to decrease. Under these conditions, the air conditioner is controlled to run for a third set time.

5. A self-cleaning control device for an air conditioner, characterized in that, The air conditioner includes: a compressor, an indoor heat exchanger, an outdoor heat exchanger, and a throttling device; a liquid storage tank is provided at the compressor inlet; the indoor heat exchanger has an internal fan and an air guide plate, and the outdoor heat exchanger has an external fan; the internal fan runs in a first direction to allow air to exit from the air inlet of the indoor heat exchanger and air to enter from the air outlet of the indoor heat exchanger; the air conditioner has a self-cleaning mode, which includes a condensation and frosting stage and a defrosting stage, and the self-cleaning mode can clean the deposits inside the indoor heat exchanger; the self-cleaning control device includes: The acquisition unit is configured to acquire the indoor ambient temperature and the outdoor ambient temperature after the air conditioner turns on the self-cleaning mode; The control unit is configured to, during the condensation and frosting stage, control the operating frequency of the compressor based on the indoor ambient temperature and the outdoor ambient temperature, and control the opening and closing status of the indoor fan, the operating status of the outdoor fan, and the opening and closing status of the air guide plate. The control unit is also configured to, during the defrosting stage, control the operating frequency of the compressor according to the outdoor ambient temperature, and control the throttling degree of the throttling device and the operating status of the outdoor fan; The control unit is also configured to operate after the defrosting phase: The air guide plate is controlled to be in the open state, the internal fan runs according to the set second internal fan speed and the first direction, the throttling device is restored to the throttling degree before reduction, the external fan runs according to the set second external fan speed, and the compressor runs at the set operating frequency. Under this state, the air conditioner is controlled to run for a fourth set time to reduce the liquid refrigerant in the liquid storage tank. The compressor and the outdoor fan are controlled to stop running, and the indoor fan is controlled to run at a set third indoor fan speed and in a first direction. In this state, the air conditioner is controlled to run for a fifth set time to prevent the condensate generated by the indoor heat exchanger from being blown out of the air outlet.

6. The self-cleaning control device for an air conditioner according to claim 5, characterized in that, The control unit, before entering the condensation and frosting stage, further includes: The air conditioner is controlled to operate in a fan-supply mode, with the air guide plate in the open state and the internal fan running at a set first internal fan speed and in a first direction. Under this state, the air conditioner is controlled to run for a first set time.

7. The self-cleaning control device for an air conditioner according to claim 5, characterized in that, The control unit, during the condensation and frosting stage, controls the operating frequency of the compressor based on the indoor and outdoor ambient temperatures, and controls the on / off state of the indoor fan, the operating state of the outdoor fan, and the on / off state of the air guide vane, including: The first target operating frequency of the compressor is determined based on the range of the indoor ambient temperature within the first temperature range and the range of the outdoor ambient temperature within the second temperature range. The system controls the indoor fan to stop running, the outdoor fan to run at a set first outdoor fan speed, the air guide plate to close, and the compressor to run at the first target operating frequency. Under these conditions, the system controls the air conditioner to run for a second set time.

8. An air conditioner, characterized in that, include: The self-cleaning control device for an air conditioner as described in any one of claims 5 to 7.

9. A storage medium, characterized in that, The storage medium includes a stored program, wherein, when the program is executed, it controls the device containing the storage medium to perform the self-cleaning control method of the air conditioner according to any one of claims 1 to 4.

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