CN114893861A

CN114893861A - Air conditioner self-cleaning control method and device, air conditioner and storage medium

Info

Publication number: CN114893861A
Application number: CN202210612385.1A
Authority: CN
Inventors: 宋龙; 吕科磊
Original assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2022-08-12

Abstract

The invention provides an air conditioner self-cleaning control method, an air conditioner self-cleaning control device, an air conditioner and a storage medium, wherein the air conditioner self-cleaning control method comprises the following steps: receiving a first input of a user under the condition that a target heating device in the air conditioner is determined to be in an operating state; the first input is used for starting a first self-cleaning mode, and the target heating device is used for heating an inflowing refrigerant; responding to a first input, controlling the opening and closing of ports of a first three-way valve and a second three-way valve in the air conditioner to form a first refrigerant circulation loop, and executing a first self-cleaning mode to clean an indoor unit of the air conditioner; under the first refrigerant circulation loop, the paths of the refrigerant circulation flow are a compressor, a condenser, a target heating device, an electronic expansion valve, an evaporator, a target heating device and a compressor. The invention can effectively improve the frosting speed and efficiency of the evaporator, simultaneously can effectively prevent the liquid impact phenomenon of the refrigerant to the compressor, and improves the efficiency of the compressor, thereby greatly improving the self-cleaning efficiency of the air conditioner.

Description

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

Technical Field

The invention relates to the technical field of air conditioners, in particular to an air conditioner self-cleaning control method and device, an air conditioner and a storage medium.

Background

After the air conditioner is placed or used for a long time, accumulated dust on an indoor unit and an outdoor unit of the air conditioner can be gradually increased, the performance of the air conditioner can be influenced after the accumulated dust is accumulated to a certain degree, a large amount of bacteria can be bred even, the health of a user is influenced, and therefore the air conditioner needs to be cleaned in time.

In the prior art, the cleaning methods of the air conditioner include manual cleaning and self-cleaning of the air conditioner. The manual cleaning is time-consuming and labor-consuming, all parts of the air conditioner need to be disassembled for cleaning, and all parts need to be reassembled after cleaning is completed. Therefore, many air conditioners have a self-cleaning function, but the existing self-cleaning control mode generally has a low frosting speed, so that the whole self-cleaning process is long in time, and the self-cleaning efficiency is low.

Therefore, how to better control the air conditioner for self-cleaning has become an urgent technical problem to be solved in the industry.

Disclosure of Invention

The invention provides a self-cleaning control method and device for an air conditioner, the air conditioner and a storage medium, which are used for better controlling the air conditioner to carry out self-cleaning.

The invention provides a self-cleaning control method of an air conditioner, which comprises the following steps:

receiving a first input of a user under the condition that a target heating device in the air conditioner is determined to be in an operating state; the first input is used for starting a first self-cleaning mode, and the target heating device is used for heating an inflowing refrigerant;

responding to the first input, controlling the opening and closing of ports of a first three-way valve and a second three-way valve in the air conditioner to form a first refrigerant circulation loop, and executing a first self-cleaning mode to clean an indoor unit of the air conditioner;

under the first refrigerant circulation loop, the path of the refrigerant circulation flow is a compressor, a condenser, the target heating device, an electronic expansion valve, an evaporator, the target heating device and the compressor.

According to the self-cleaning control method of the air conditioner provided by the invention, the first self-cleaning mode is executed, and the method comprises the following steps:

entering a first frosting stage;

in the first frost formation stage, the air conditioner performs refrigeration under the first refrigerant circulation loop, the compressor runs at a first target frequency, the indoor unit fan is in a stop running state, the outdoor unit fan is in a running state, and the target frequency is determined based on the outdoor environment temperature;

entering a first defrosting stage under the condition that the running time of the first defrosting stage exceeds a first time threshold;

in the first defrosting stage, the indoor unit fan operates at the maximum wind speed, and a second time length threshold value is used as the operation time length;

stopping running the first self-cleaning mode after the first defrosting stage is finished; the first self-cleaning mode includes the first frost formation stage and the first frost formation stage.

According to the self-cleaning control method of the air conditioner provided by the invention, before the receiving the first input of the user, the method further comprises the following steps:

under the condition of starting the air conditioner, starting the target heating device to operate;

receiving a second input of a user, wherein the second input is used for starting a refrigeration mode;

responding to the second input, controlling the opening and closing of the ports of the first three-way valve and the second three-way valve to form a second refrigerant circulation loop and execute the refrigeration mode;

and under the second refrigerant circulation loop, the paths of the refrigerant circulating and flowing are the compressor, the condenser, the electronic expansion valve, the evaporator, the target heating device and the compressor.

receiving a third input of a user, wherein the third input is used for starting a heating mode;

responding to the third input, controlling the opening and closing of the ports of the first three-way valve and the second three-way valve to form a third refrigerant circulation loop and execute the heating mode;

and under the third refrigerant circulation loop, the paths of the refrigerant circulation flow are the compressor, the evaporator, the electronic expansion valve, the target heating device, the condenser and the compressor.

According to the self-cleaning control method of the air conditioner provided by the invention, after the stopping of the operation of the first self-cleaning mode, the method further comprises the following steps:

starting a second frosting stage of a second self-cleaning mode;

entering a second defrosting stage of the second self-cleaning mode under the condition that the running time of the second defrosting stage exceeds a third time length threshold;

after the second defrosting stage is finished, stopping running the second self-cleaning mode, and recording the starting time of the first self-cleaning mode;

in the second frosting stage, the air conditioner heats under the first refrigerant circulation loop, the compressor runs at a second target frequency, the indoor unit fan runs at the maximum wind speed, and the outdoor unit fan is in a stop running state;

in the second defrosting stage, the outdoor unit fan operates at the maximum wind speed, and a fourth time threshold is used as the operation time.

According to the self-cleaning control method of the air conditioner provided by the invention, after the start time of the first self-cleaning mode is recorded, the method further comprises the following steps:

when the target time length is determined to exceed a fifth time length threshold value, the target heating device is in an operation state, and the air conditioner is in a target mode, controlling the air conditioner to be switched to the first self-cleaning mode from the target mode; the target duration takes the starting time as a time starting point; the target mode comprises a cooling mode or a heating mode;

after the operation of the first self-cleaning mode is finished, controlling the air conditioner to operate the second self-cleaning mode;

and after the second self-cleaning mode operation is finished, controlling the air conditioner to switch back to the target mode.

The self-cleaning control method of the air conditioner provided by the invention further comprises the following steps:

when the air conditioner is determined to be in a shutdown state and the accumulated time length from the last shutdown exceeds a sixth time length threshold value, starting the air conditioner to operate, and starting the target heating device to operate;

controlling the air conditioner to sequentially operate the first self-cleaning mode and the second self-cleaning mode;

and after the second self-cleaning mode operation is finished, controlling the air conditioner to enter a shutdown state.

According to the self-cleaning control method of the air conditioner, the target heating device is a solar heating device, and the solar heating device is used for heating a refrigerant flowing through.

The present invention also provides a self-cleaning control device for an air conditioner, comprising:

the air conditioner comprises an input module, a control module and a control module, wherein the input module is used for receiving a first input of a user under the condition that a target heating device in the air conditioner is determined to be in an operating state; the first input is used for starting a first self-cleaning mode, and the target heating device is used for heating an inflowing refrigerant;

the control module is used for responding to the first input, controlling the opening and closing of ports of a first three-way valve and a second three-way valve in the air conditioner to form a first refrigerant circulation loop, and executing a first self-cleaning mode to clean an indoor unit of the air conditioner;

The invention also provides an air conditioner, which comprises a compressor, a four-way valve, a condenser, a first three-way valve, a second three-way valve, a target heating device, an electronic expansion valve and an evaporator;

a first port of the first three-way valve is connected with the four-way valve through the condenser, the four-way valve is connected with the compressor, and a third port of the first three-way valve is respectively connected with one end of the electronic expansion valve and a third port of the target heating device; the other end of the electronic expansion valve is connected with one end of the evaporator;

a first port of the second three-way valve is connected with the compressor through the four-way valve, and a second port of the second three-way valve is connected with a second port of the target heating device;

a second port of the first three-way valve is connected with a first port of the target heating device; a third port of the second three-way valve is respectively connected with the other end of the evaporator and a fourth port of the target heating device;

the self-cleaning control system of the air conditioner also comprises a controller, wherein the controller comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, and the processor executes the program to realize the self-cleaning control method of the air conditioner.

The present invention also provides a non-transitory computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the air conditioner self-cleaning control method as described in any one of the above.

The present invention also provides a computer program product comprising a computer program, wherein the computer program is executed by a processor to implement the self-cleaning control method of the air conditioner as described in any one of the above.

According to the air conditioner self-cleaning control method and device, the air conditioner and the storage medium, the internal pipeline structure of the air conditioner is improved by adding the three-way valve and the heating device, and the first input of a user is received under the condition that a target heating device in the air conditioner is determined to be in the running state, wherein the first input is used for starting a first self-cleaning mode; responding to a first input, controlling the opening and closing of ports of a first three-way valve and a second three-way valve in the air conditioner to form a first refrigerant circulation loop, and executing the first self-cleaning mode to clean an indoor unit of the air conditioner; under the first refrigerant circulation loop, the path of refrigerant circulation flow is a compressor, a condenser, a target heating device, an electronic expansion valve, an evaporator, a target heating device and a compressor, the target heating device heats the inflow refrigerant before the refrigerant flows into the evaporator, and simultaneously heats the low-temperature low-pressure refrigerant flowing out of the evaporator, so that the gas-liquid two-phase refrigerant in a saturated state can increase the flow of the gaseous refrigerant by absorbing heat, the temperature of the refrigerant is improved, the frosting speed and efficiency of the evaporator can be effectively improved after the refrigerant enters the evaporator, meanwhile, the liquid impact phenomenon of the refrigerant on the compressor can be effectively prevented, the efficiency of the compressor is improved, and the self-cleaning efficiency of the air conditioner can be greatly improved.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of an air conditioner provided in the present invention;

FIG. 2 is a schematic flow chart of a self-cleaning control method for an air conditioner according to the present invention;

FIG. 3 is a schematic structural diagram of a self-cleaning control device for an air conditioner according to the present invention;

fig. 4 is a schematic structural diagram of a controller in an air conditioner according to the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The self-cleaning control method and device for the air conditioner, the air conditioner and the storage medium of the invention are described in conjunction with fig. 1-4.

Fig. 1 is a schematic structural view of an air conditioner according to the present invention, as shown in fig. 1, which includes a compressor 110, a four-way valve 120, a condenser 130, a first three-way valve 140, a second three-way valve 150, a target heating device 160, an electronic expansion valve 170, and an evaporator 180;

a first port 141 of the first three-way valve 140 is connected to the four-way valve 120 through the condenser 130, the four-way valve 120 is connected to the compressor 110, and a third port 143 of the first three-way valve 140 is connected to one end of the electronic expansion valve 170 and a third port 163 of the target heating apparatus 160, respectively; the other end of the electronic expansion valve 170 is connected to one end of the evaporator 180;

a first port 151 of the second three-way valve 150 is connected to the compressor 110 through the four-way valve 120, and a second port 152 of the second three-way valve 150 is connected to a second port 162 of the target heating apparatus 160;

the second port 142 of the first three-way valve 140 is connected with the first port 161 of the target heating apparatus 160; the third port 153 of the second three-way valve 150 is connected to the other end of the evaporator 180 and the fourth port 164 of the target heating device 160, respectively.

In the embodiment of the invention, when a user is detected to start the refrigeration mode operation, the first three-way valve is communicated with the first port and the third port of the first three-way valve, the second three-way valve is communicated with the first port and the second port of the second three-way valve, at the moment, a refrigerant sequentially passes through the compressor, the condenser, the electronic expansion valve, the evaporator, the target heating device and the compressor to circularly flow, the temperature of the refrigerant is improved by heating the low-temperature low-pressure refrigerant discharged from the evaporator, the gas-liquid two-phase refrigerant in a saturated state can be changed into a gaseous refrigerant by absorbing the heat of the target heating device, the liquid refrigerant is prevented from occurring, the liquid impact phenomenon of the refrigerant on the compressor can be effectively prevented, the compressor is protected, the efficiency of the compressor is improved, and the energy consumption of the compressor is reduced;

when a user starts the heating mode to operate, the first three-way valve is communicated with the first port and the second port of the user, the second three-way valve is communicated with the first port and the third port of the user, at the moment, a refrigerant sequentially passes through the compressor, the evaporator, the electronic expansion valve, the target heating device, the condenser and the compressor to circularly flow, the low-temperature and low-pressure refrigerant which is throttled by the electronic expansion valve is heated, the gas-liquid two-phase refrigerant in a saturated state can be changed into a gaseous refrigerant by absorbing the heat of the target heating device, the temperature of the refrigerant is increased, the heat exchange efficiency of the condenser can be improved after the refrigerant enters the condenser, the efficiency of the compressor is improved, and the energy consumption of the compressor is reduced.

Fig. 2 is a schematic flow chart of a self-cleaning control method for an air conditioner, as shown in fig. 2, including:

step 110, receiving a first input of a user under the condition that a target heating device in the air conditioner is determined to be in an operating state; the first input is used for starting a first self-cleaning mode, and the target heating device is used for heating an inflowing refrigerant;

specifically, the target heating device described in the embodiment of the present invention is used for heating the incoming refrigerant, and may specifically adopt a solar heating device or an electric heating device.

In the embodiment of the invention, when the air conditioner is started to operate, the target heating device can be synchronously started to heat.

Optionally, in an embodiment of the present invention, the target heating device is a solar heating device, and the solar heating device is configured to heat a refrigerant flowing through the solar heating device.

In the embodiment of the invention, the solar heating technology is adopted, abundant solar energy resources are fully utilized, and the refrigerant in the air conditioner is heated, so that the aims of environmental protection, energy conservation and emission reduction can be fulfilled.

The first input described in the embodiments of the present invention refers to a user operation for turning on the first self-cleaning mode.

Wherein the first input may be expressed in at least one of the following ways:

first, the first input may be represented as a touch input, including but not limited to operations such as a click input, a slide input, and a press input.

In this embodiment, through wireless interconnection, the operation of the air conditioner may be controlled through the electronic device of the user, and the first input of the user may be received, which may be represented as receiving the first input of the user in a display area of a display screen of the electronic device, and then automatically sending the first input to the air conditioner, and the controller of the air conditioner may receive the first input of the user.

Second, the first input may be represented as a physical key input.

In this embodiment, the terminal body for controlling the air conditioner may be provided with an entity button for triggering the air conditioner to start the first self-cleaning mode, and the first input of the user is received, which may be expressed as receiving, at the electronic device, the first input of the user pressing the corresponding entity button, and then automatically sending the first input to the air conditioner, and the controller of the air conditioner may receive the first input of the user.

Third, the first input may be represented as a voice input.

In this embodiment, the air conditioner may be preset with a voice interaction module to perform voice interaction with a user, and may implement the first input after receiving a voice of the user, such as a voice of "start self-cleaning", and send the first input to the air conditioner.

Of course, in other embodiments, the first input may also be expressed in other forms, which may be determined according to actual needs, and the embodiment of the present invention does not limit this.

According to the method provided by the embodiment of the invention, the air conditioner can be triggered to start the first self-cleaning mode by receiving the first input of the user, so that the user can autonomously control the cleaning of the air conditioner, the user can conveniently control the self-cleaning frequency of the air conditioner according to personal requirements, and the user experience is improved.

Step 120, responding to the first input, controlling the opening and closing of ports of a first three-way valve and a second three-way valve in the air conditioner to form a first refrigerant circulation loop, and executing a first self-cleaning mode to clean an indoor unit of the air conditioner;

under the first refrigerant circulation loop, the paths of the refrigerant circulation flow are a compressor, a condenser, a target heating device, an electronic expansion valve, an evaporator, a target heating device and a compressor.

Specifically, the first self-cleaning mode described in the embodiments of the present invention refers to a mode for controlling an air conditioner to perform self-cleaning on an indoor unit.

The first three-way valve and the second three-way valve described in the embodiment of the present invention are two preset three-way valves, wherein as shown in fig. 1, the first three-way valve is disposed between the condenser and the electronic expansion valve, and the second three-way valve is disposed between the four-way valve and the evaporator, and is used for controlling a circulation loop of a refrigerant flowing so that the refrigerant can be heated by the target heating device.

In the embodiment of the present invention, the first three-way valve is connected to the first port and the second port of the first three-way valve by controlling the opening and closing of the ports of the first three-way valve and the second three-way valve, and the second three-way valve is connected to the first port and the second port of the second three-way valve, so that the path through which the refrigerant circulates is the compressor, the condenser, the target heating device, the electronic expansion valve, the evaporator, the target heating device, and the compressor, thereby forming the first refrigerant circulation loop.

Furthermore, in response to the first input, the ports of a first three-way valve and a second three-way valve in the air conditioner are controlled to be opened and closed to form a first refrigerant circulation loop, and a first self-cleaning mode is executed under the first refrigerant circulation loop, so that when the air conditioner performs self-cleaning operation, a frosting control process and a defrosting control process under the self-cleaning mode can be effectively realized, and an indoor unit of the air conditioner is cleaned.

According to the method, the internal pipeline structure of the air conditioner is improved by adding the three-way valve and the heating device, and under the condition that a target heating device in the air conditioner is determined to be in an operating state, a first input of a user is received, wherein the first input is used for starting a first self-cleaning mode; responding to a first input, controlling the opening and closing of ports of a first three-way valve and a second three-way valve in the air conditioner to form a first refrigerant circulation loop, and executing the first self-cleaning mode to clean an indoor unit of the air conditioner; under the first refrigerant circulation loop, the path of refrigerant circulation flow is a compressor, a condenser, a target heating device, an electronic expansion valve, an evaporator, a target heating device and a compressor, the target heating device heats the inflow refrigerant before the refrigerant flows into the evaporator, and simultaneously heats the low-temperature low-pressure refrigerant flowing out of the evaporator, so that the gas-liquid two-phase refrigerant in a saturated state can increase the flow of the gaseous refrigerant by absorbing heat, the temperature of the refrigerant is improved, the frosting speed and efficiency of the evaporator can be effectively improved after the refrigerant enters the evaporator, meanwhile, the liquid impact phenomenon of the refrigerant on the compressor can be effectively prevented, the efficiency of the compressor is improved, and the self-cleaning efficiency of the air conditioner can be greatly improved.

Based on the content of the foregoing embodiments, as an alternative embodiment, the first self-cleaning mode is executed, and includes:

entering a first frosting stage;

in a first frost formation stage, the air conditioner performs refrigeration under a first refrigerant circulation loop, the compressor runs at a first target frequency, the indoor unit fan is in a stop running state, the outdoor unit fan is in a running state, and the target frequency is determined based on the outdoor environment temperature;

in the first defrosting stage, the indoor unit fan runs at the maximum wind speed, and the second time length threshold value is used as the running time length;

stopping running the first self-cleaning mode after the first defrosting stage is finished; the first self-cleaning mode includes a first frost formation stage and a first frost formation stage.

Specifically, in the embodiment of the present invention, the first self-cleaning mode includes a first frost stage and a first frost stage, that is, the first frost stage refers to a frost stage of the first self-cleaning mode, and the first frost stage refers to a frost stage of the first self-cleaning mode.

The first target frequency described in the embodiment of the present invention refers to an initial operating frequency of the compressor when the first self-cleaning mode is turned on, which is determined based on the outdoor ambient temperature; specifically, in an embodiment of the present invention, when the outdoor ambient temperature is 22 ℃ or higher, the first target frequency may be 85 Hz; the first target frequency may be 80Hz when the outdoor ambient temperature is less than 22 ℃.

The first time threshold described in the embodiment of the present invention refers to a preset threshold of the operation time of the first defrosting stage, and a specific value range thereof may be 10 to 20 minutes.

The second time duration threshold described in the embodiment of the present invention refers to a preset threshold of the operation time duration of the first defrosting stage, and a specific value range thereof may be 0.5 to 1 minute.

Further, in an embodiment of the present invention, a first self-cleaning mode is performed, entering a first frost stage: in the first frosting stage, the air conditioner performs refrigeration under a first refrigerant circulation loop, the compressor runs at a first target frequency, the indoor unit fan is in a stop running state, and the outdoor unit fan is in a running state, so that the frosting time of the indoor unit self-cleaning can be effectively shortened;

entering a first defrosting stage when the running time of the first defrosting stage exceeds a first time threshold: in the first defrosting stage, the fan of the indoor unit operates at the maximum wind speed, and the second time length threshold value is used as the operation time length, so that the defrosting time of the indoor unit for self cleaning can be effectively shortened, the defrosting can be rapidly performed in the first self cleaning mode, and the dust can be efficiently removed.

Further, in an embodiment of the present invention, after the first defrosting stage is finished, the operation of the first self-cleaning mode is stopped.

In an embodiment of the present invention, in a cooling condition in summer, the air conditioner is in a cooling state, after the air conditioner is started to enter a first defrosting stage of the first self-cleaning mode, at this time, if the outdoor ambient temperature is greater than or equal to 22 ℃, a compressor of the air conditioner operates according to a first target frequency (e.g., 85Hz), cooling is performed in the first refrigerant circulation loop, and at the same time, the indoor unit fan is stopped, the outdoor unit fan rotates normally, and after the operation time of the first defrosting stage exceeds a first time threshold, for example, after 15 minutes, the air conditioner enters the first defrosting stage, the indoor unit fan is turned on to operate at the maximum wind speed for 0.5 minutes, and then, self-cleaning of the indoor unit is finished.

In another embodiment of the present invention, in the case of heating in winter, the air conditioner is in a heating state, at this time, the frequency of the compressor is controlled to be adjusted to a target frequency value (e.g. 45Hz) within a predetermined time (e.g. 1.5 minutes), the value of the target frequency value may range from 40Hz to 50Hz, reversing is performed by controlling the low-frequency operation of the compressor, the air conditioner is adjusted to a cooling mode, so that the air conditioner is in a cooling state, after the air conditioner is started to enter a first frost formation stage of a first self-cleaning mode, at this time, if the outdoor ambient temperature is less than 22 ℃, the compressor of the air conditioner is operated according to a first target frequency (e.g. 80Hz), cooling is performed in a first refrigerant circulation loop, at the same time, the indoor unit fan is stopped, the outdoor unit fan is normally rotated, and the operation time in the first frost formation stage exceeds a first time threshold, for example, after 15 minutes, the air conditioner enters a first defrosting stage, in order to improve defrosting time in winter, the frequency can be adjusted to a target frequency value by controlling the frequency of the compressor within a preset time (for example, 1.5 minutes), so that the four-way valve can be conveniently reversed, the air conditioner is adjusted to a heating mode, then the fan of the indoor unit is turned on to run for 0.5 minute at the maximum wind speed, and then self-cleaning of the indoor unit is finished.

It should be noted that the cooling state described in the embodiment of the present invention refers to a state where the air conditioner is in the cooling mode by reversing the air conditioner through the four-way valve. For example, the air conditioner operates in a cooling mode, and after the air conditioner is turned off and exits the cooling mode, the air conditioner is still in a cooling state.

According to the method provided by the embodiment of the invention, the air conditioner is finely controlled under the first refrigerant circulation loop by setting the operation parameters of the frosting stage and the defrosting stage in the self-cleaning mode of the indoor unit, so that the air conditioner is more accurately and effectively controlled to operate in the self-cleaning mode of the indoor unit, the frosting time and the defrosting time in the self-cleaning mode of the indoor unit can be accelerated, and the self-cleaning efficiency of the air conditioner is improved.

Based on the content of the foregoing embodiment, as an optional embodiment, after stopping running the first self-cleaning mode, the method further includes:

starting a second frosting stage of a second self-cleaning mode;

entering a second defrosting stage of a second self-cleaning mode under the condition that the running time of the second defrosting stage exceeds a third time length threshold;

in the second defrosting stage, the outdoor unit fan operates at the maximum wind speed, and the fourth time threshold is used as the operation time.

In particular, in an embodiment of the present invention, the second self-cleaning mode includes a second frosting phase and a second frosting phase, that is, the second frosting phase refers to the frosting phase of the second self-cleaning mode, and the second frosting phase refers to the frosting phase of the second self-cleaning mode.

The second target frequency described in the embodiments of the present invention refers to an initial operating frequency of the compressor when the second self-cleaning mode is turned on, which is also determined based on the outdoor ambient temperature. Specifically, in an embodiment of the present invention, when the outdoor ambient temperature is 16 ℃ or higher, the second target frequency may be 80 Hz; when the outdoor environment temperature is greater than or equal to 5 ℃ and less than 16 ℃, the second target frequency may be 85Hz, and when the outdoor environment temperature is less than 5 ℃, the second target frequency may be 0Hz, that is, the compressor stops operating, at this time, only the indoor unit self-cleaning is performed, but the outdoor unit self-cleaning is not performed.

The third time duration threshold described in the embodiment of the present invention refers to a preset threshold of the operation time duration of the second frosting stage, and a specific value range thereof may also be 13 to 20 minutes.

The fourth time threshold described in the embodiment of the present invention refers to a preset threshold of the operation time of the second defrosting stage, and is also an operation time threshold of an outdoor unit fan in the second defrosting stage, and a specific value range of the fourth time threshold may be 0.5 to 1 minute.

Further, in the embodiment of the present invention, after stopping running the first self-cleaning mode, executing a second self-cleaning mode, entering a second frosting stage:

in the second frosting stage, the running frequency of the compressor is reduced, the four-way valve is adjusted to change the direction, so that the air conditioner is switched from the previous refrigerating mode to the heating mode, the air conditioner is enabled to heat under the first refrigerant circulation loop, the compressor is adjusted to run at the second target frequency, the indoor unit fan runs at the maximum wind speed, the outdoor unit fan is in the stop running state, and the frosting time of the self-cleaning outdoor unit can be effectively shortened;

and entering a second frosting stage under the condition that the running time of the second frosting stage exceeds a third time length threshold: in the second defrosting stage, the outdoor unit fan runs at the maximum wind speed and runs for a long time by taking the fourth time threshold as a running time, so that the defrosting time of the outdoor unit self-cleaning can be effectively shortened, the outdoor unit can quickly defrost in the second self-cleaning mode, and the dust can be efficiently removed.

Further, in the embodiment of the present invention, after the second defrosting stage is finished, the second self-cleaning mode is stopped, and the starting time of the first self-cleaning mode is recorded, so as to periodically perform self-cleaning on the air conditioner.

In an embodiment of the present invention, in a cooling condition in summer, after the self-cleaning of the indoor unit is finished, the frequency of the compressor is controlled to be adjusted to a target frequency value within a predetermined time (for example, 1.5 minutes), so that the four-way valve can be conveniently reversed, and the air conditioner is adjusted to be in a heating mode, so as to realize a frosting control process of the self-cleaning of the outdoor unit. And further adjusting the compressor to operate at a second target frequency (such as 80Hz), operating the indoor unit fan at the maximum wind speed, stopping the outdoor unit fan, and entering a second defrosting stage when the operation time of the second defrosting stage exceeds a third time threshold (such as 15 minutes). In the second defrosting stage, the outdoor unit fan runs at the maximum wind speed for 0.5 minute, then the air conditioner is controlled to stop, the self-cleaning mode exits, the first three-way valve is controlled to be communicated with the first port and the third port of the air conditioner, the second three-way valve is controlled to be communicated with the first port and the third port of the air conditioner, the state during stopping is recovered, and meanwhile, the starting time of the self-cleaning at this time is recorded, namely the starting time of the first self-cleaning mode is recorded.

In another embodiment of the present invention, in the case of heating in winter, after the indoor unit finishes self-cleaning, the indoor unit enters a second frosting stage of a second self-cleaning mode, and the air conditioner can be adjusted to the heating mode by controlling the low-frequency operation of the compressor and reversing the four-way valve, so that the air conditioner is in the heating state, and a frosting control process of self-cleaning of the outdoor unit is realized. And further adjusting the compressor to operate at a second target frequency (for example, 85Hz), the indoor unit fan to operate at the maximum wind speed, and the outdoor unit fan to be in a stopped state, and simultaneously, in order to accelerate the frosting time, increasing the opening of the electronic expansion valve, wherein the opening threshold value can be increased within a range of 50 to 100 steps, and when the operation time of the second frosting stage exceeds a third time threshold value (for example, 15 minutes), entering the second frosting stage. And in the second defrosting stage, the outdoor unit fan runs at the maximum wind speed for 0.5 minute, then the air conditioner is controlled to stop, the self-cleaning mode exits, the first three-way valve is controlled to be communicated with the first port and the third port of the first three-way valve, the second three-way valve is controlled to be communicated with the first port and the third port of the second three-way valve, the state during the stop is recovered, and meanwhile, the starting time of the first self-cleaning mode is recorded.

According to the method provided by the embodiment of the invention, the self-cleaning function of the outdoor unit is realized by setting the operation parameters of the frosting stage and the defrosting stage in the second self-cleaning mode, and meanwhile, the air conditioner is set to perform fine control under the first refrigerant circulation loop, so that the air conditioner is controlled to operate in the self-cleaning mode of the outdoor unit more accurately and more effectively, the frosting time and the defrosting time of the self-cleaning mode of the outdoor unit are favorably accelerated, and the self-cleaning efficiency of the air conditioner is further improved.

Based on the content of the foregoing embodiment, as an optional embodiment, before receiving the first input of the user, the method further includes:

under the condition of starting the air conditioner, starting a target heating device to operate;

receiving a second input of the user, wherein the second input is used for starting a refrigeration mode;

responding to a second input, controlling the opening and closing of ports of the first three-way valve and the second three-way valve to form a second refrigerant circulation loop and execute a refrigeration mode;

and under the second refrigerant circulation loop, the paths of the refrigerant circulation flow are a compressor, a condenser, an electronic expansion valve, an evaporator, a target heating device and a compressor.

Specifically, the second input described in the embodiments of the present invention refers to a user operation for turning on the cooling mode of the air conditioner.

In the embodiment of the present invention, the specific implementation manner of the second input may be the same as that of the first input, that is, the second input may be represented by at least one of the three manners of the first input, which is not described herein again, and the implementation manner of the second input is not specifically limited in the embodiment of the present invention.

In the embodiment of the present invention, the first three-way valve connects the first port and the third port by controlling the opening and closing of the ports of the first three-way valve and the second three-way valve, and the second three-way valve connects the first port and the second port, so that the path of the refrigerant circulation flow is the compressor, the condenser, the electronic expansion valve, the evaporator, the target heating device, and the compressor, and a second refrigerant circulation loop is formed.

Further, in the embodiment of the present invention, in response to the second input, the ports of the first three-way valve and the second three-way valve are controlled to open and close, so as to form the second refrigerant circulation loop, and the cooling mode of the air conditioner is executed under the second refrigerant circulation loop.

According to the method provided by the embodiment of the invention, the target heating device and the three-way valve are additionally arranged, so that the low-temperature and low-pressure refrigerant from the evaporator can be heated when the refrigeration mode is operated, the temperature of the refrigerant is increased, the gas-liquid two-phase refrigerant in a saturated state can be changed into a gaseous refrigerant through heat absorption, the liquid refrigerant is prevented from occurring, the liquid impact phenomenon of the refrigerant on the compressor can be effectively prevented, the compressor is protected, meanwhile, the efficiency of the compressor is improved, the energy consumption of the compressor is reduced, and the refrigeration efficiency of the air conditioner can be effectively improved.

receiving a third input of the user, wherein the third input is used for starting a heating mode;

responding to a third input, controlling the opening and closing of ports of the first three-way valve and the second three-way valve to form a third refrigerant circulation loop and execute a heating mode;

and under the third refrigerant circulation loop, the paths of the refrigerant circulation flow are a compressor, an evaporator, an electronic expansion valve, a target heating device, a condenser and a compressor.

Specifically, the third input described in the embodiments of the present invention refers to a user operation for turning on the heating mode of the air conditioner.

In the embodiment of the present invention, the specific implementation manner of the third input may be the same as that of the first input, that is, the third input may be represented by at least one of the three manners of the first input, which is not described herein again, and the implementation manner of the third input is not specifically limited in the embodiment of the present invention.

In the embodiment of the present invention, the first three-way valve connects the first port and the second port by controlling the opening and closing of the ports of the first three-way valve and the second three-way valve, and the second three-way valve connects the first port and the third port by controlling the opening and closing of the ports of the first three-way valve and the second three-way valve, so that the path of the refrigerant circulation flow is the compressor, the evaporator, the electronic expansion valve, the target heating device, the condenser and the compressor, and a third refrigerant circulation loop is formed.

In addition, in the embodiment of the present invention, in response to a third input, ports of the first three-way valve and the second three-way valve are controlled to be opened and closed, so as to form a third refrigerant circulation loop, and a heating mode of the air conditioner is executed under the third refrigerant circulation loop.

According to the method provided by the embodiment of the invention, the target heating device and the three-way valve are additionally arranged, so that the low-temperature and low-pressure refrigerant discharged after throttling of the electronic expansion valve can be heated in the heating mode, the gas-liquid two-phase refrigerant in a saturated state is changed into a gaseous refrigerant through heat absorption, the temperature of the refrigerant is increased, the heat exchange efficiency of the condenser can be improved after the refrigerant enters the condenser, the efficiency of the compressor is improved, the energy consumption of the compressor is reduced, and the heating efficiency of the air conditioner can be effectively improved.

Based on the content of the foregoing embodiment, as an alternative embodiment, after recording the starting time of the first self-cleaning mode, the method further includes:

when the target time length is determined to exceed the fifth time length threshold value, the target heating device is in the running state, and the air conditioner is in the target mode, controlling the air conditioner to be switched into the first self-cleaning mode to run from the target mode; the target duration takes the starting time as a time starting point; the target mode comprises a cooling mode or a heating mode;

after the first self-cleaning mode operation is finished, controlling the air conditioner to operate a second self-cleaning mode;

Specifically, the target time period described in the embodiment of the present invention refers to an accumulated operation time period of the air conditioner starting from the turn-on time of the first self-cleaning mode.

The fifth time duration threshold described in the embodiment of the present invention refers to a preset time duration threshold, and a specific value range of the fifth time duration threshold may be 45 to 60 days.

The target mode described in the embodiments of the present invention may include a cooling mode or a heating mode.

Further, in the embodiment of the present invention, after the start time of the first self-cleaning mode is recorded, it is determined that the target time length exceeds the fifth time length threshold, the target heating device is in the operating state, and the air conditioner is in the target mode, that is, the accumulated operating time length of the air conditioner exceeds the fifth time length threshold, at this time, the air conditioner will automatically switch the current target mode to the first self-cleaning mode to operate, execute the first self-cleaning mode, and perform self-cleaning on the indoor unit;

further, in the embodiment of the present invention, after the operation in the first self-cleaning mode is finished, the air conditioner is controlled to operate in the second self-cleaning mode to self-clean the outdoor unit; after the second self-cleaning mode is finished, the indoor unit and the outdoor unit are both cleaned, and at the moment, the air conditioner is controlled to be switched back to the target mode of the previous operation, so that the automatic starting self-cleaning function can be realized.

In one embodiment of the present invention, in a cooling condition in summer, when it is determined that the air conditioner is operating in the target mode as the cooling mode and the accumulated operating time of the air conditioner exceeds 50 days, the air conditioner is controlled to automatically start the startup self-cleaning program, at this time, the air conditioner is operating in the cooling state, after the air conditioner enters the first defrosting stage of the first self-cleaning mode, the compressor is controlled to operate at the self-cleaning operating frequency, i.e. the first target frequency, the first three-way valve and the second three-way valve are controlled to form a first refrigerant circulation loop, cooling is performed in the first refrigerant circulation loop, at this time, the indoor fan is stopped, the outdoor fan is normally rotated, after the operating time of the first defrosting stage exceeds a first time threshold, if the air conditioner is operating for 15 minutes, the indoor fan is turned on to operate at the maximum wind speed for 0.5 minutes, and then, the self-cleaning of the indoor unit is finished;

after the self-cleaning of the indoor unit is finished, the running frequency of the compressor is controlled to be adjusted to a target frequency value, the four-way valve is reversed, and the air conditioner is adjusted to be in a heating mode, so that the frosting control process of the self-cleaning of the outdoor unit is realized; and further adjusting the compressor to operate at a second target frequency (such as 80Hz), operating the indoor unit fan at the maximum wind speed, stopping the outdoor unit fan, and entering a second defrosting stage when the operation time of the second defrosting stage exceeds a third time threshold (such as 15 minutes). In the second defrosting stage, the outdoor unit fan runs at the maximum wind speed, runs for 0.5 minute to dry, then exits from the self-cleaning mode, controls the first three-way valve to be communicated with the first port and the third port of the first three-way valve, controls the second three-way valve to be communicated with the first port and the second port of the second three-way valve, restores the state in the refrigeration mode, continues to run according to the refrigeration mode set by the air conditioner before, and records the starting time of the first self-cleaning mode at this time.

In another embodiment of the invention, in the case of heating in winter, when it is determined that the target mode of the air conditioner is the heating mode and the accumulated running time of the air conditioner exceeds 50 days, the air conditioner is controlled to automatically start a starting self-cleaning program, and after entering a first frosting stage of a first self-cleaning mode, the air conditioner is in the heating state, the frequency of the compressor is controlled to be adjusted to a target frequency value, the four-way valve is reversed, the air conditioner is adjusted to be in the cooling mode, and the air conditioner is in the cooling state; then the compressor of the air conditioner operates according to a first target frequency (such as 80Hz), the first three-way valve and the second three-way valve are controlled to form a first refrigerant circulation loop, refrigeration is carried out under the first refrigerant circulation loop, meanwhile, the indoor unit fan stops, the outdoor unit fan normally rotates, the operation time of the first defrosting stage exceeds a first time threshold, for example, after 15 minutes, the air conditioner enters a first defrosting stage, in order to improve the defrosting time in winter, the operation frequency of the compressor can be reduced through control, the four-way valve is reversed, the air conditioner is adjusted to a heating mode, then the indoor unit fan is opened to operate for 0.5 minutes at the maximum wind speed, and then the self-cleaning of the indoor unit is finished;

after the self-cleaning of the indoor unit is finished, the air conditioner is still in a heating mode, the air conditioner is in a heating state, and the frosting control process of the self-cleaning of the outdoor unit can be realized. Entering a second frosting stage of a second self-cleaning mode, adjusting the compressor to operate at a second target frequency (such as 85Hz), operating the indoor unit fan at the maximum wind speed, and operating the outdoor unit fan at a stop state, and meanwhile, in order to accelerate the frosting time, increasing the opening of the electronic expansion valve, wherein the opening threshold value increasing range can be 50-100 steps; and entering a second frosting stage when the running time of the second frosting stage exceeds a third time length threshold (such as 15 minutes). In the second defrosting stage, the outdoor unit fan runs at the maximum wind speed, runs for 0.5 minute to blow dry, then exits from the self-cleaning mode, controls the first three-way valve to be communicated with the first port and the second port of the first three-way valve, controls the second three-way valve to be communicated with the first port and the third port of the second three-way valve, restores the state in the heating mode, continues to run according to the heating mode set by the air conditioner before, and records the starting time of the first self-cleaning mode at this time.

According to the method provided by the embodiment of the invention, the self-cleaning mode is automatically started when the accumulated operation time of the air conditioner is judged to exceed the fifth time threshold value by setting the fifth time threshold value, so that the self-cleaning of the air conditioner is periodically and automatically realized, the air conditioner is continuously kept in a cleaning state, the user experience is favorably improved, after the self-cleaning is finished, the self-cleaning mode is automatically exited and is switched to the operation mode selected by the user, the normal use of the user is not influenced, and the user experience is good.

Based on the content of the foregoing embodiment, as an optional embodiment, the method further includes:

under the condition that the air conditioner is determined to be in a shutdown state and the accumulated time from the last shutdown exceeds a sixth time threshold, starting the air conditioner to operate, and starting a target heating device to operate;

controlling the air conditioner to sequentially run a first self-cleaning mode and a second self-cleaning mode;

Specifically, the sixth duration threshold described in the embodiment of the present invention refers to a preset duration threshold, and a specific value range thereof may be 80 to 100 days.

Further, in the embodiment of the present invention, when it is determined that the air conditioner is in the shutdown state and the accumulated time from the last shutdown exceeds the sixth time threshold, that is, the time from the last shutdown when the air conditioner is in the shutdown state exceeds the sixth time threshold, the air conditioner may be started to operate, and the target heating device may be started to operate; and then controlling the air conditioner to operate the first self-cleaning mode and the second self-cleaning mode, fully cleaning the indoor unit and the outdoor unit, and after the second self-cleaning mode is finished, namely the indoor unit and the outdoor unit are cleaned, controlling the air conditioner to recover to the previous state, namely entering a shutdown state.

According to the method provided by the embodiment of the invention, the self-cleaning mode is automatically started when the accumulated time from the last shutdown exceeds the sixth time threshold by setting the sixth time threshold, so that the air conditioner is periodically and automatically cleaned in the shutdown state, the air conditioner is continuously kept in the cleaning state, a clean state is provided for the next use of the air conditioner, the comfort of the user using the air conditioner is ensured, the user experience is favorably improved, after the self-cleaning is finished, the air conditioner automatically exits from the self-cleaning mode and enters the shutdown state, the normal use of the user is not influenced, and the user experience is good.

It should be noted that, in the embodiment of the present invention, four modes, namely, a manual shutdown self-cleaning mode, a manual startup self-cleaning mode, an automatic shutdown self-cleaning mode and an automatic startup self-cleaning mode, may be implemented, when the air conditioner is in operation and in use, when a user manually presses a key to select a self-cleaning function, and then presses a power key to shut down, the air conditioner enters the manual shutdown self-cleaning mode; when a user manually presses a key to select a self-cleaning function and does not press a power key to shut down, entering a manual starting self-cleaning mode; when the accumulated standby time of the air conditioner exceeds a sixth time threshold, the air conditioner enters an automatic shutdown self-cleaning mode; when the accumulated running time of the air conditioner exceeds a fifth time length threshold value, the air conditioner enters an automatic starting self-cleaning mode;

it should be noted that, in the self-cleaning mode, the first self-cleaning mode and the second self-cleaning mode may be performed to clean the indoor unit and the outdoor unit.

After each self-cleaning operation, recording the starting time, and setting the next automatic self-cleaning time according to the time, wherein the time interval of two times is not less than 50 days, the manual time is not limited, and the automatic self-cleaning device can be started at any time. The determination of the outdoor ambient temperature is made only once when the self-cleaning is turned on, and is not made thereafter. When the outdoor temperature is lower than 5 ℃, only the indoor unit self-cleaning is carried out, and the outdoor unit self-cleaning is not carried out, because the outdoor environment temperature is too low, the outdoor self-cleaning is easy to freeze and cannot be defrosted when the outdoor environment temperature is in high-frequency operation, and the normal functional operation of the air conditioner is influenced.

The following describes the self-cleaning control device of the air conditioner provided by the present invention, and the self-cleaning control device of the air conditioner described below and the self-cleaning control method of the air conditioner described above can be referred to each other.

Fig. 3 is a schematic structural diagram of a self-cleaning control device of an air conditioner provided by the invention, as shown in fig. 3, comprising:

an input module 310, configured to receive a first input of a user if it is determined that a target heating apparatus in an air conditioner is in an operating state; the first input is used for starting a first self-cleaning mode, and the target heating device is used for heating an inflowing refrigerant;

the control module 320 is configured to, in response to the first input, control ports of a first three-way valve and a second three-way valve in the air conditioner to open and close to form a first refrigerant circulation loop, and execute a first self-cleaning mode to clean an indoor unit of the air conditioner;

The self-cleaning control device of the air conditioner according to this embodiment may be used to implement the above-mentioned embodiments of the self-cleaning control method of the air conditioner, and the principle and technical effects are similar, which are not described herein again.

According to the device provided by the embodiment of the invention, the internal pipeline structure of the air conditioner is improved by adding the three-way valve and the heating device, and the first input of a user is received under the condition that a target heating device in the air conditioner is determined to be in an operating state, wherein the first input is used for starting a first self-cleaning mode; responding to a first input, controlling the opening and closing of ports of a first three-way valve and a second three-way valve in the air conditioner to form a first refrigerant circulation loop, and executing the first self-cleaning mode to clean an indoor unit of the air conditioner; under the first refrigerant circulation loop, the path of refrigerant circulation flow is a compressor, a condenser, a target heating device, an electronic expansion valve, an evaporator, a target heating device and a compressor, the target heating device heats the inflow refrigerant before the refrigerant flows into the evaporator, and simultaneously heats the low-temperature low-pressure refrigerant flowing out of the evaporator, so that the gas-liquid two-phase refrigerant in a saturated state can increase the flow of the gaseous refrigerant by absorbing heat, the temperature of the refrigerant is improved, the frosting speed and efficiency of the evaporator can be effectively improved after the refrigerant enters the evaporator, meanwhile, the liquid impact phenomenon of the refrigerant on the compressor can be effectively prevented, the efficiency of the compressor is improved, and the self-cleaning efficiency of the air conditioner can be greatly improved.

Fig. 4 is a schematic structural diagram of a controller in an air conditioner according to the present invention, and as shown in fig. 4, the electronic device may include: a processor (processor)410, a communication Interface 420, a memory (memory)430 and a communication bus 440, wherein the processor 410, the communication Interface 420 and the memory 430 are communicated with each other via the communication bus 440. The processor 410 may call logic instructions in the memory 430 to execute the self-cleaning control method of the air conditioner provided by the above methods, the method comprising: receiving a first input of a user under the condition that a target heating device in the air conditioner is determined to be in an operating state; the first input is used for starting a first self-cleaning mode, and the target heating device is used for heating an inflowing refrigerant; responding to the first input, controlling the opening and closing of ports of a first three-way valve and a second three-way valve in the air conditioner to form a first refrigerant circulation loop, and executing a first self-cleaning mode to clean an indoor unit of the air conditioner; under the first refrigerant circulation loop, the path of the refrigerant circulation flow is a compressor, a condenser, the target heating device, an electronic expansion valve, an evaporator, the target heating device and the compressor.

In addition, the logic instructions in the memory 430 may be implemented in the form of software functional units and stored in a computer readable storage medium when the software functional units are sold or used as independent products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

In another aspect, the present invention also provides a computer program product, the computer program product comprising a computer program, the computer program being stored on a non-transitory computer-readable storage medium, wherein when the computer program is executed by a processor, the computer is capable of executing the air conditioner self-cleaning control method provided by the above methods, the method comprising: receiving a first input of a user under the condition that a target heating device in the air conditioner is determined to be in an operating state; the first input is used for starting a first self-cleaning mode, and the target heating device is used for heating an inflowing refrigerant; responding to the first input, controlling the opening and closing of ports of a first three-way valve and a second three-way valve in the air conditioner to form a first refrigerant circulation loop, and executing a first self-cleaning mode to clean an indoor unit of the air conditioner; under the first refrigerant circulation loop, the path of the refrigerant circulation flow is a compressor, a condenser, the target heating device, an electronic expansion valve, an evaporator, the target heating device and the compressor.

In yet another aspect, the present invention also provides a non-transitory computer-readable storage medium having stored thereon a computer program, which when executed by a processor, implements an air conditioner self-cleaning control method provided by the above methods, the method including: receiving a first input of a user under the condition that a target heating device in the air conditioner is determined to be in an operating state; the first input is used for starting a first self-cleaning mode, and the target heating device is used for heating an inflowing refrigerant; responding to the first input, controlling the opening and closing of ports of a first three-way valve and a second three-way valve in the air conditioner to form a first refrigerant circulation loop, and executing a first self-cleaning mode to clean an indoor unit of the air conditioner; under the first refrigerant circulation loop, the path of the refrigerant circulation flow is a compressor, a condenser, the target heating device, an electronic expansion valve, an evaporator, the target heating device and the compressor.

The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.

Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. Based on the understanding, the above technical solutions substantially or otherwise contributing to the prior art may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as ROM/RAM, magnetic disk, optical disk, etc., and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method according to the various embodiments or some parts of the embodiments.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A self-cleaning control method of an air conditioner is characterized by comprising the following steps:

2. An air conditioner self-cleaning control method as claimed in claim 1, wherein performing the first self-cleaning mode comprises:

entering a first frosting stage;

3. The air conditioner self-cleaning control method as claimed in claim 1, further comprising, before said receiving a first input from a user:

4. The air conditioner self-cleaning control method as claimed in claim 1, further comprising, before said receiving a first input from a user:

5. An air conditioner self-cleaning control method as set forth in claim 2, further comprising, after said stopping operation of said first self-cleaning mode:

starting a second frosting stage of a second self-cleaning mode;

6. An air conditioner self-cleaning control method as claimed in claim 5, further comprising, after recording the turn-on time of the first self-cleaning mode:

7. An air conditioner self-cleaning control method as claimed in claim 5, further comprising:

when the air conditioner is determined to be in a shutdown state and the accumulated time from the last shutdown exceeds a sixth time threshold, starting the air conditioner to operate, and starting the target heating device to operate;

8. An air conditioner self-cleaning control method as claimed in any one of claims 1-7, wherein said target heating device is a solar heating device for heating a refrigerant flowing therethrough.

9. An air conditioner self-cleaning control device, comprising:

10. An air conditioner is characterized by comprising a compressor, a four-way valve, a condenser, a first three-way valve, a second three-way valve, a target heating device, an electronic expansion valve and an evaporator;

further comprising a controller including a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the air conditioner self-cleaning control method as claimed in any one of claims 1 to 8 when executing the program.

11. A non-transitory computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the air conditioner self-cleaning control method according to any one of claims 1 to 8.

12. A computer program product comprising a computer program, wherein the computer program, when executed by a processor, implements the air conditioner self-cleaning control method as claimed in any one of claims 1 to 8.