CN114893862A - Control method and device for self-cleaning of air conditioner, air conditioner and storage medium - Google Patents

Control method and device for self-cleaning of air conditioner, air conditioner and storage medium Download PDF

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Publication number
CN114893862A
CN114893862A CN202210612410.6A CN202210612410A CN114893862A CN 114893862 A CN114893862 A CN 114893862A CN 202210612410 A CN202210612410 A CN 202210612410A CN 114893862 A CN114893862 A CN 114893862A
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CN
China
Prior art keywords
self
air conditioner
cleaning
way valve
cleaning mode
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Pending
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CN202210612410.6A
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Chinese (zh)
Inventor
宋龙
吕科磊
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Qingdao Haier Air Conditioner Gen Corp Ltd
Qingdao Haier Air Conditioning Electric Co Ltd
Haier Smart Home Co Ltd
Original Assignee
Qingdao Haier Air Conditioner Gen Corp Ltd
Qingdao Haier Air Conditioning Electric Co Ltd
Haier Smart Home Co Ltd
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Application filed by Qingdao Haier Air Conditioner Gen Corp Ltd, Qingdao Haier Air Conditioning Electric Co Ltd, Haier Smart Home Co Ltd filed Critical Qingdao Haier Air Conditioner Gen Corp Ltd
Priority to CN202210612410.6A priority Critical patent/CN114893862A/en
Publication of CN114893862A publication Critical patent/CN114893862A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F24F2110/12—Temperature of the outside air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/22—Cleaning ducts or apparatus
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Signal Processing (AREA)
  • Thermal Sciences (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention provides a control method and a control device for self-cleaning of an air conditioner, the air conditioner and a storage medium, wherein the 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 and the outdoor environment temperature is not greater than a target temperature threshold value; the first input is used for starting a 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; and after the operation of the first self-cleaning mode is finished, controlling the opening and closing of the ports of a first three-way valve and a second three-way valve in the air conditioner to form a second refrigerant circulation loop, and executing a second self-cleaning mode to clean the outdoor unit of the air conditioner. The invention can realize the cleaning of the indoor unit and the outdoor unit and effectively improve the self-cleaning efficiency of the outdoor unit of the air conditioner.

Description

Control method and device for self-cleaning of air conditioner, air conditioner and storage medium
Technical Field
The invention relates to the technical field of air conditioners, in particular to a control method and device for self-cleaning of an air conditioner, the 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 air conditioner is operated in a refrigeration mode, so that the surface of the heat exchanger is frosted, and then the heat exchanger is subjected to defrosting cleaning.
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 control method and device for self-cleaning of an air conditioner, the air conditioner and a storage medium, which are used for better controlling the self-cleaning of the air conditioner.
The invention provides a control method for self-cleaning 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 and the outdoor environment temperature is not greater than a target temperature threshold value; the first input is used for starting a 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;
after the operation of the first self-cleaning mode is finished, 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 second refrigerant circulation loop, and executing a second self-cleaning mode to clean an outdoor unit of the air conditioner;
under the first refrigerant circulation loop, the path of the refrigerant circulation flow is a compressor, a condenser, an electronic expansion valve, an evaporator and the compressor;
and under the second 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 present invention, there is provided a control method for self-cleaning of an air conditioner, the method further comprising:
receiving a second input of a user if the target heating device is determined to be in the running state and the outdoor environment temperature is greater than the target temperature threshold; the second input is for turning on a third self-cleaning mode;
responding to the second 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 third refrigerant circulation loop, and executing the third self-cleaning mode to clean an indoor unit of the air conditioner;
under the third refrigerant circulation loop, the paths of the refrigerant circulation flow are the compressor, the condenser, the target heating device, the electronic expansion valve, the evaporator, the target heating device and the compressor;
and after the third self-cleaning mode is finished, controlling the opening and closing of the ports of a first three-way valve and a second three-way valve in the air conditioner to form the first refrigerant circulation loop, and executing a fourth self-cleaning mode to clean the outdoor unit of the air conditioner.
According to a control method for self-cleaning of an air conditioner provided by the present invention, the first self-cleaning mode is performed, including:
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 air conditioner is switched from the refrigerating mode to the heating mode, the indoor unit fan runs at the maximum wind speed, and a 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 the first frost formation stage and the first frost formation stage.
According to a control method for self-cleaning of an air conditioner provided by the present invention, the performing of the second self-cleaning mode includes:
entering a second frosting stage;
in the second frosting stage, the air conditioner heats under the second refrigerant circulation loop, the compressor runs at a second target frequency, the indoor unit fan runs at a preset wind speed, the opening degree of the electronic expansion valve is adjusted to a first target opening degree, and the outdoor unit fan is in a stop running state;
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;
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;
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; the second self-cleaning mode includes the second frosting stage and the second frosting stage.
According to a control method for self-cleaning of an air conditioner provided by the present invention, the third self-cleaning mode is performed, including:
entering a third frosting stage;
in the third frosting stage, the air conditioner performs refrigeration under the third refrigerant circulation loop, the compressor runs at a third target frequency, the indoor unit fan is in a stop running state, and the outdoor unit fan is in a running state;
entering a third defrosting stage under the condition that the running time of the third defrosting stage exceeds a fifth time threshold;
in the third defrosting stage, the air conditioner is switched from the cooling mode to the heating mode, the indoor unit fan is in an operating state, and the indoor unit fan takes a sixth time length threshold value as an operating time length;
stopping running the third self-cleaning mode after the third defrosting stage is finished; the third self-cleaning mode includes the third frosting stage and the third frosting stage.
According to a control method for self-cleaning of an air conditioner provided by the present invention, the performing of the fourth self-cleaning mode includes:
entering a fourth frosting stage;
in the fourth frosting stage, the air conditioner heats under the first refrigerant circulation loop, the compressor runs at a fourth target frequency, the indoor unit fan runs at the maximum wind speed, the opening degree of the electronic expansion valve is adjusted to a second target opening degree, and the outdoor unit fan is in a stop running state;
entering a fourth defrosting stage of the fourth self-cleaning mode when the running time of the fourth defrosting stage exceeds a seventh time threshold;
in the fourth defrosting stage, the outdoor unit fan operates at the maximum wind speed, and an eighth time threshold is used as the operation time;
after the fourth defrosting stage is finished, stopping running the fourth self-cleaning mode, and recording the starting time of the third self-cleaning mode; the fourth self-cleaning mode includes the fourth frosting stage and the fourth frosting stage.
According to the present invention, after the start time of the first self-cleaning mode is recorded, the method further comprises:
when the target time length is determined to exceed a ninth 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 invention provides a control method for self-cleaning of an air conditioner, which further comprises the following steps:
when the air conditioner is determined to be in a shutdown state and the accumulated time from the last shutdown exceeds a tenth time threshold, 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 present invention, before the receiving the first input of the user, the method for controlling self-cleaning of the air conditioner further comprises:
under the condition of starting the air conditioner, starting the target heating device to operate;
receiving a third input of a user, wherein the third input is used for starting a refrigeration 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 fourth refrigerant circulation loop and execute the refrigeration mode;
in the fourth refrigerant circulation loop, the path of the refrigerant circulating flow is sequentially the compressor, the condenser, the electronic expansion valve, the evaporator, the target heating device and the compressor.
According to the present invention, before the receiving the first input of the user, the method for controlling self-cleaning of the air conditioner further comprises:
under the condition of starting the air conditioner, starting the target heating device to operate;
receiving a fourth input of a user, wherein the fourth input is used for starting a heating mode;
and responding to the fourth input, and controlling the opening and closing of the ports of the first three-way valve and the second three-way valve to form the second refrigerant circulation loop and execute the heating mode.
According to the control method for self-cleaning of the air conditioner, the target heating device is a solar heating device which is used for heating a refrigerant flowing through.
The present invention also provides a control apparatus for self-cleaning of an air conditioner, comprising:
the first 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 and the outdoor environment temperature is not greater than a target temperature threshold value; 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 first 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 the first self-cleaning mode to clean an indoor unit of the air conditioner;
the second control module is used for controlling the opening and closing of ports of a first three-way valve and a second three-way valve in the air conditioner after the operation of the first self-cleaning mode is finished so as to form a second refrigerant circulation loop, and executing a second self-cleaning mode so as to clean an outdoor unit of the air conditioner;
under the first refrigerant circulation loop, the path of the refrigerant circulation flow is a compressor, a condenser, an electronic expansion valve, an evaporator and the compressor;
and under the second 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.
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 further 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 control method for self-cleaning of an air conditioner as described in any one of the above.
The present invention also provides a computer program product comprising a computer program which, when executed by a processor, implements a control method for self-cleaning of an air conditioner as described in any one of the above.
The invention provides a control method and a device for self-cleaning of an air conditioner, the air conditioner and a storage medium, wherein the internal pipeline structure of the air conditioner is improved by adding a three-way valve and a heating device, under the condition that a target heating device in the air conditioner is determined to be in an operating state and the outdoor environment temperature is not more than a target temperature threshold value, a first input of a user is received, and in response to the first input, 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, so that the path of the refrigerant circulation flow is a compressor, a condenser, an electronic expansion valve, an evaporator and a compressor, and a first self-cleaning mode is executed under the first refrigerant circulation loop, and the heat stored by the target heating device is not used in the self-cleaning process of an indoor unit; and after the operation of the first self-cleaning mode is finished, controlling a first three-way valve and a second three-way valve in the air conditioner to form a second refrigerant circulation loop, enabling paths of refrigerant circulation flow to be a compressor, an evaporator, an electronic expansion valve, a target heating device, a condenser and a compressor, and performing auxiliary heating by using heat stored in the target heating device in the self-cleaning process of the outdoor unit when the second self-cleaning mode is executed, so that the freezing risk in a low-temperature environment can be effectively reduced, the indoor unit and the outdoor unit can be cleaned, and meanwhile, the self-cleaning efficiency of the outdoor unit of the air conditioner can be effectively improved.
Drawings
In order to more clearly illustrate the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of 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 other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural view of an air conditioner provided in the present invention;
FIG. 2 is a flow chart illustrating a control method for self-cleaning of an air conditioner according to the present invention;
FIG. 3 is a schematic structural diagram of a control device for self-cleaning of 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 control method, device, air conditioner and storage medium for self-cleaning of the air conditioner according to the present invention will be described with reference to fig. 1 to 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 control method for self-cleaning of an air conditioner, as shown in fig. 2, including: step 110, step 120 and step 130.
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 and the outdoor environment temperature is not greater than a target temperature threshold value, wherein the first input is used for starting a self-cleaning mode; the target heating device is used for heating the 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 target temperature threshold described in the embodiment of the present invention refers to a preset temperature threshold, and the specific value range thereof may be 4 ℃ to 6 ℃.
The first input described in the embodiments of the present invention refers to a user operation of turning on the self-cleaning mode in a case where it is determined that the target heating apparatus is in an operating state and the outdoor ambient temperature is not greater than the target temperature threshold.
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, under the condition that the target heating device in the air conditioner is determined to be in the running state and the outdoor environment temperature is not greater than the target temperature threshold, the air conditioner can be triggered to start the first self-cleaning mode by receiving the first input of the user, so that the self-cleaning control of the air conditioner by the user is realized, the user can conveniently control the self-cleaning frequency of the air conditioner according to personal requirements, and the user experience is favorably improved.
Step 120, responding to the first input, controlling the opening and closing of the 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 the indoor unit of the air conditioner;
specifically, in the embodiment of the present invention, in the first refrigerant circulation circuit, the refrigerant circulation flow path includes a compressor, a condenser, an electronic expansion valve, an evaporator, and the compressor.
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, and specifically refers to a self-cleaning mode executed on a first refrigerant circulation loop.
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 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 first port and the third port of the first three-way valve are connected by the second three-way valve, so that the path through which the refrigerant circulates is the compressor, the condenser, the electronic expansion valve, the evaporator, and the compressor, thereby forming the first refrigerant circulation circuit. It is understood that the first refrigerant circulation circuit does not involve a target heating device.
Furthermore, in response to the first input, a first three-way valve and a second three-way valve in the air conditioner are controlled 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.
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;
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 air conditioner is switched from a refrigerating mode to a heating mode, the indoor unit fan runs at the maximum wind speed, and a 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 15 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 formation 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, the outdoor unit fan is in a running state, and 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 air conditioner is switched from the refrigerating mode to the heating mode, the fan of the indoor unit runs at the maximum wind speed, and the second time length threshold value is used as the running time length, so that the defrosting time of self-cleaning of the indoor unit can be effectively shortened, the first self-cleaning mode can be used for defrosting quickly, and dust can be removed efficiently.
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 case of heating in winter, when the outdoor ambient temperature is not greater than the target temperature threshold, the air conditioner is in a heating state, at this time, the frequency is adjusted to a target frequency value, such as 45Hz, within a predetermined time (such as 1.5 minutes) by controlling the compressor, the target frequency value may range from 40Hz to 50Hz, the four-way valve is conveniently reversed 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 operates according to the first target frequency (such as 80Hz), cooling is performed in a first refrigerant circulation loop, and at the same time, the indoor unit fan stops, the outdoor unit fan normally rotates, and the operation time in the first frost formation stage exceeds a first time threshold, if after 10 minutes, the air conditioner enters a first defrosting stage, in order to improve defrosting time in winter, the frequency of the compressor is controlled to be adjusted to a target frequency value, the four-way valve is controlled to be reversed, the air conditioner is adjusted to be in a heating mode, then a fan of the indoor unit is turned on to run for 0.5 minute at the maximum wind speed for drying, 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 mechanical 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. It is understood that the heating state refers to a mechanical state that the air conditioner is in the heating mode by reversing the air conditioner through the four-way valve.
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.
Step 130, after the operation of the first self-cleaning mode is finished, controlling the opening and closing of the ports of a first three-way valve and a second three-way valve in the air conditioner to form a second refrigerant circulation loop, and executing a second self-cleaning mode to clean the outdoor unit of the air conditioner;
under the second 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 second self-cleaning mode described in the embodiment of the present invention refers to a mode for controlling the air conditioner to perform self-cleaning on the outdoor unit under the second refrigerant circulation loop.
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, 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 second refrigerant circulation circuit is formed. It can be appreciated that the participation of the target heating device is increased in the second refrigerant circulation circuit compared to the first refrigerant circulation circuit.
Furthermore, after the operation of the first self-cleaning mode is finished, the ports of the first three-way valve and the second three-way valve in the air conditioner are controlled to be opened and closed to form a second refrigerant circulation loop, and the second self-cleaning mode is executed under the second refrigerant circulation loop, so that the heat stored in the target heating device is used for carrying out auxiliary heating on the heat exchanger in the self-cleaning process of the outdoor unit, the icing risk is reduced, the frosting control process and the defrosting control process in the self-cleaning mode of the outdoor unit can be effectively realized, and the outdoor unit of the air conditioner is cleaned.
Based on the content of the foregoing embodiment, as an alternative embodiment, the second self-cleaning mode is executed, and includes:
entering a second frosting stage;
in a second frosting stage, the air conditioner heats under a second refrigerant circulation loop, the compressor runs at a second target frequency, the indoor unit fan runs at a preset air speed, the opening degree of the electronic expansion valve is adjusted to a first target opening degree, and the outdoor unit fan is in a stop running state;
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 length threshold value is used as the operation time length;
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; the second self-cleaning mode includes a second frosting phase and a second frosting phase.
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; the second target frequency may be 85Hz when the outdoor ambient temperature is 5 ℃ or more and less than 16 ℃, and may be 60Hz when the outdoor ambient temperature is less than 5 ℃.
The preset wind speed described in the embodiment of the present invention may be a maximum wind speed or a wind speed corresponding to an intermediate wind speed gear.
The first target opening degree described in the embodiment of the present invention refers to an opening degree after a target opening degree value is increased on the basis of an original opening degree of the electronic expansion valve. At this time, the original opening degree of the electronic expansion valve is the opening degree of the electronic expansion valve when the electronic expansion valve does not enter the second frosting stage. The specific value range of the target opening degree value can be 90 steps to 110 steps. The maximum opening degree of the electronic expansion valve does not exceed 480 steps.
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 8 to 15 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, a second refrigerant circulation loop is formed by controlling the first three-way valve and the second three-way valve, so that the air conditioner heats under the second refrigerant circulation loop, a target heating device is added to perform auxiliary heating on the refrigerant, the compressor runs at a second target frequency, the indoor unit fan runs at the maximum wind speed, the opening degree of the electronic expansion valve is increased to the first target opening degree, the outdoor unit fan is in a stop running state, the frosting speed can be effectively increased, and the frosting time of the outdoor unit self-cleaning is 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 value as a running time, so that the defrosting time of the outdoor unit self-cleaning can be effectively shortened, the second self-cleaning mode can be used for quickly defrosting, and efficient dust removal can be realized.
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 winter heating situation, after the indoor unit finishes self-cleaning, the indoor unit enters a second frosting stage of a second self-cleaning mode, and a second refrigerant circulation loop is formed by controlling the first three-way valve and the second three-way valve, so that the air conditioner heats under the second refrigerant circulation loop, and a frosting control process of the outdoor unit self-cleaning is achieved. And further adjusting the compressor to operate at a second target frequency (such as 85Hz), the indoor unit fan to operate at the maximum wind speed, the outdoor unit fan to be in a stop operation state, meanwhile, in order to accelerate the frosting time, the opening of the electronic expansion valve can be increased by 100 steps, the maximum step is not more than 480 steps, and the second frosting stage is started when the operation time of the second frosting stage exceeds a third time threshold (such as 15 minutes). 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.
In 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 be finely controlled under the second refrigerant circulation loop so as to use the heat stored in the target heating device to perform auxiliary heating on the heat exchanger in the self-cleaning process of the outdoor unit, so that the air conditioner is more accurately and effectively controlled to operate in the self-cleaning mode of the outdoor unit, the frosting time and the defrosting time of the self-cleaning mode of the outdoor unit are favorably accelerated, the icing risk in a low-temperature environment is reduced, and the self-cleaning efficiency of the outdoor unit of the air conditioner is improved.
The control method for self-cleaning of the air conditioner comprises the steps that a three-way valve and a heating device are added to improve the structure of an internal pipeline of the air conditioner, under the condition that a target heating device in the air conditioner is determined to be in an operating state and the outdoor environment temperature is not larger than a target temperature threshold value, a first input of a user is received, and in response to the first input, 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, so that the paths of refrigerant circulation flow are a compressor, a condenser, an electronic expansion valve, an evaporator and a compressor, a first self-cleaning mode is executed under the first refrigerant circulation loop, and heat stored by the target heating device is not used in the self-cleaning process; and after the operation of the first self-cleaning mode is finished, controlling a first three-way valve and a second three-way valve in the air conditioner to form a second refrigerant circulation loop, enabling paths of refrigerant circulation flow to be a compressor, an evaporator, an electronic expansion valve, a target heating device, a condenser and a compressor, and performing auxiliary heating by using heat stored in the target heating device in the self-cleaning process of the outdoor unit when the second self-cleaning mode is executed, so that the freezing risk in a low-temperature environment can be effectively reduced, the indoor unit and the outdoor unit can be cleaned, and meanwhile, the self-cleaning efficiency of the outdoor unit of the air conditioner can be effectively improved.
Based on the content of the foregoing embodiment, as an optional embodiment, the method further includes:
receiving a second input of the user under the condition that the target heating device is determined to be in the running state and the outdoor environment temperature is greater than the target temperature threshold value; the second input is used for starting a third self-cleaning mode;
responding to a second 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 third refrigerant circulation loop, and executing a third self-cleaning mode to clean an indoor unit of the air conditioner;
under the third 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;
and after the third self-cleaning mode is finished, controlling the opening and closing of the 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 fourth self-cleaning mode to clean the outdoor unit of the air conditioner.
Specifically, in the embodiment of the present invention, in the third refrigerant circulation loop, the refrigerant circulation flow path is a compressor, a condenser, a target heating device, an electronic expansion valve, an evaporator, a target heating device, and a compressor; the first port and the second port of the air conditioner are communicated by controlling a first three-way valve in the air conditioner, and the first port and the second port of the air conditioner are communicated by controlling a second three-way valve in the air conditioner, so that a third refrigerant circulation loop is formed.
The third self-cleaning mode described in the embodiment of the present invention refers to a self-cleaning mode performed on the third refrigerant circulation circuit.
The second input described in the embodiment of the present invention refers to a user operation of turning on the third self-cleaning mode under the condition that it is determined that the target heating apparatus is in the operating state and the outdoor ambient temperature is greater than the target temperature threshold.
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.
Further, in an embodiment of the present invention, in a case where it is determined that the target heating apparatus is in an operating state and the outdoor ambient temperature is greater than the target temperature threshold value, receiving a second input of the user; responding to the second 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 third refrigerant circulation loop, executing a frosting control process and a defrosting control process in a third self-cleaning mode on the third refrigerant circulation loop to enable a target heating device to heat an inflow refrigerant before the refrigerant flows into an evaporator, and simultaneously heating a low-temperature and low-pressure refrigerant flowing out of the evaporator, so that a gas-liquid two-phase refrigerant in a saturated state can increase the flow of a gaseous refrigerant through 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 a compressor can be effectively prevented, the efficiency of the compressor is improved, and therefore, an indoor unit of the air conditioner can be efficiently cleaned;
based on the content of the foregoing embodiments, as an alternative embodiment, a third self-cleaning mode is performed, including:
entering a third frosting stage;
in a third frosting stage, the air conditioner performs refrigeration under a third refrigerant circulation loop, the compressor runs at a third target frequency, the indoor unit fan is in a stop running state, and the outdoor unit fan is in a running state;
entering a third defrosting stage under the condition that the running time of the third defrosting stage exceeds a fifth time threshold;
in a third defrosting stage, the air conditioner is switched from a refrigerating mode to a heating mode, the indoor unit fan is in an operating state, and the indoor unit fan takes a sixth time length threshold value as an operating time length;
stopping running the third self-cleaning mode after the third defrosting stage is finished; the third self-cleaning mode includes a third frost phase and a third frost phase.
Specifically, in the embodiment of the present invention, the third self-cleaning mode includes a third frosting stage and a third defrosting stage, that is, the third frosting stage refers to the frosting stage of the third self-cleaning mode, and the third defrosting stage refers to the defrosting stage of the third self-cleaning mode.
The third target frequency described in the embodiment of the present invention refers to an initial operating frequency of the compressor when the third 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 third target frequency may be 85 Hz; the third target frequency may be 80Hz when the outdoor ambient temperature is less than 22 ℃.
The fifth time duration threshold described in the embodiment of the present invention refers to a preset threshold of the operation time duration of the third frosting stage, and a specific value range thereof may be 8 to 15 minutes.
The sixth time duration threshold described in the embodiment of the present invention refers to a preset threshold of the operation time duration of the third defrosting stage, and a specific value range thereof may be 0.5 to 1 minute.
Further, in the embodiment of the present invention, a third self-cleaning mode is performed, a third frost formation stage is entered: in the third frosting stage, the air conditioner performs refrigeration under a third refrigerant circulation loop, the compressor runs at a third target frequency (such as 80Hz), 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;
and entering a third defrosting stage under the condition that the running time of the third defrosting stage exceeds a fifth time threshold: in the third defrosting stage, the air conditioner is switched from the cooling mode to the heating mode, the indoor unit fan is in the running state, and the indoor unit fan takes the sixth time threshold as the running time, so that the defrosting time of the indoor unit self-cleaning can be effectively shortened, the third self-cleaning mode can be used for defrosting quickly, and dust can be removed efficiently.
Further, in an embodiment of the present invention, after the third defrosting stage is finished, the third self-cleaning mode is stopped.
In an embodiment of the present invention, in the case of heating in winter, when the outdoor environment temperature is higher than the target temperature threshold, the air conditioner is in the heating state, at this time, the frequency of the compressor is controlled to be adjusted to the target frequency value, so as to facilitate the reversing of the four-way valve, the air conditioner is adjusted to be in the cooling mode, so that the air conditioner is in the cooling state, after the air conditioner is started to enter the third frosting stage of the third self-cleaning mode, at this time, if the outdoor environment temperature is lower than 22 ℃, the compressor of the air conditioner operates according to 80Hz, cooling is performed in the third refrigerant circulation loop, at the same time, the indoor unit fan is stopped, the outdoor unit fan rotates normally, after the operation time of the third frosting stage exceeds the fifth time threshold, for example, 10 minutes, the air conditioner enters the third frosting stage, in order to increase the defrosting time in winter, the frequency value can be adjusted to the target frequency value by controlling the frequency of the compressor, and controlling the four-way valve to change the direction, adjusting the air conditioner to be in a heating mode, then turning on the fan of the indoor unit to run for 0.5 minute at the maximum wind speed for drying, and then finishing self-cleaning of the indoor unit.
In another embodiment of the present invention, in a case of refrigeration in summer, when the outdoor environment temperature is higher than the target temperature threshold, the air conditioner is in a refrigeration state, after the air conditioner is started to enter a third frosting stage of a third self-cleaning mode, at this time, if the outdoor environment temperature is greater than or equal to 22 ℃, a compressor of the air conditioner operates according to 85Hz, refrigeration is performed in a third refrigerant circulation loop, meanwhile, an indoor unit fan stops, an outdoor unit fan normally rotates, after the operation time of the third frosting stage exceeds a fifth duration threshold, for example, 10 minutes, the air conditioner enters a third frosting stage, because the summer temperature is high, it is not necessary to switch a heating mode, at this time, only the indoor unit fan needs to be turned on, and the air conditioner operates at the maximum air speed for 0.5 minutes to perform blow-dry, and then the indoor unit self-cleaning ends.
According to the method provided by the embodiment of the invention, aiming at the scene that the outdoor environment temperature is higher than the target temperature threshold value, the running parameters of the frosting stage and the defrosting stage in the self-cleaning mode of the indoor unit are set, so that the air conditioner is finely controlled under the third refrigerant circulation loop, the running of the self-cleaning mode of the indoor unit of the air conditioner is more accurately and effectively controlled, the frosting time and the defrosting time of the self-cleaning mode of the indoor unit are favorably accelerated, the applicability of the self-cleaning function is improved, and the self-cleaning efficiency of the air conditioner is favorably improved.
Further, in the embodiment of the present invention, after the third self-cleaning mode is finished, the first three-way valve is controlled to connect the first port and the third port of the first three-way valve, and the second three-way valve is controlled to connect the first port and the third port of the second three-way valve, so as to form the first refrigerant circulation loop, and the frosting control process and the defrosting control process in the fourth self-cleaning mode are performed on the first refrigerant circulation loop, so as to clean the outdoor unit of the air conditioner.
Based on the content of the above embodiments, as an alternative embodiment, the fourth self-cleaning mode is performed, including:
entering a fourth frosting stage;
in a fourth frosting stage, the air conditioner heats under the first refrigerant circulation loop, the compressor runs at a fourth target frequency, the indoor unit fan runs at the maximum wind speed, the opening degree of the electronic expansion valve is adjusted to a second target opening degree, and the outdoor unit fan is in a stop running state;
entering a fourth defrosting stage of a fourth self-cleaning mode under the condition that the running time of the fourth defrosting stage exceeds a seventh time threshold;
in the fourth defrosting stage, the outdoor unit fan operates at the maximum wind speed, and the eighth time length threshold value is used as the operation time length;
after the fourth defrosting stage is finished, stopping running the fourth self-cleaning mode, and recording the starting time of the third self-cleaning mode; the fourth self-cleaning mode includes a fourth frost formation stage and a fourth frost formation stage.
Specifically, in the embodiment of the present invention, the fourth self-cleaning mode includes a fourth frosting stage and a fourth defrosting stage, that is, the fourth frosting stage refers to the frosting stage of the fourth self-cleaning mode, and the fourth defrosting stage refers to the defrosting stage of the fourth self-cleaning mode.
The fourth target frequency described in the embodiments of the present invention refers to an initial operating frequency of the compressor when the fourth self-cleaning mode is turned on, which is also determined based on the outdoor ambient temperature. Specifically, in the embodiment of the present invention, when the outdoor ambient temperature is 16 ℃ or higher, the fourth target frequency may be 80 Hz; when the outdoor ambient temperature is 5 ℃ or more and less than 16 ℃, the fourth target frequency may be 85 Hz.
The second target opening degree described in the embodiment of the present invention refers to an opening degree after the target opening degree value is increased on the basis of the original opening degree of the electronic expansion valve. At this time, the original opening degree of the electronic expansion valve is the opening degree of the electronic expansion valve when the electronic expansion valve does not enter the fourth frosting stage. The specific value range of the target opening value can be 40 steps to 60 steps.
The seventh time duration threshold described in the embodiment of the present invention refers to a preset threshold of the operation time duration of the fourth frosting stage, and a specific value range thereof may also be 10 to 15 minutes.
The eighth time duration threshold described in the embodiment of the present invention refers to a preset threshold of the operation time duration of the fourth defrosting stage, and is also an operation time duration threshold of an outdoor unit fan in the fourth defrosting stage, and a specific value range of the eighth time duration threshold may be 0.5 to 1 minute.
Further, in the embodiment of the present invention, after stopping running the third self-cleaning mode, executing a fourth self-cleaning mode, entering a fourth frosting stage:
in the fourth frosting stage, a first refrigerant circulation loop is formed by controlling the first three-way valve and the second three-way valve, so that the air conditioner can perform heating under the first refrigerant circulation loop, the compressor operates at a fourth target frequency, the indoor unit fan operates at the maximum wind speed, the opening degree of the electronic expansion valve is adjusted to a second target opening degree, the outdoor unit fan is in a stop operation state, the frosting speed can be effectively increased, and the frosting time of the outdoor unit for self-cleaning is shortened;
and entering a fourth defrosting stage under the condition that the running time of the fourth frosting stage exceeds a seventh time threshold: in the fourth defrosting stage, the outdoor unit fan runs at the maximum wind speed and runs for a long time with the eighth time threshold as the 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 fourth self-cleaning mode, and dust can be efficiently removed.
Further, in the embodiment of the present invention, after the fourth defrosting stage is finished, the fourth self-cleaning mode is stopped, and the on-time of the third self-cleaning mode is recorded, so as to periodically perform self-cleaning on the air conditioner.
In an embodiment of the invention, in the case of heating in winter, when the outdoor environment temperature is higher than the target temperature threshold, after the third self-cleaning mode of the indoor unit is ended, the air conditioner is adjusted to be in the heating mode, and enters a fourth frosting stage of the fourth self-cleaning mode, and the first three-way valve and the second three-way valve are controlled to form a first refrigerant circulation loop for heating, so as to realize a frosting control process for self-cleaning of the outdoor unit. And further adjusting the compressor to operate at a fourth target frequency (such as 85Hz), operating the indoor unit fan at the maximum wind speed, increasing the electronic expansion valve by 50 steps to adjust to a second target opening degree, stopping the outdoor unit fan, and entering a fourth defrosting stage when the operation time of the fourth frosting stage exceeds a seventh time threshold (such as 10 minutes). In the fourth defrosting stage, the outdoor unit fan operates 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 heating state, continues the heating operation of the air conditioner, and records the starting time of the third self-cleaning mode.
In another embodiment of the present invention, in the case of refrigeration in summer, when the outdoor environment temperature is higher than the target temperature threshold, after the third self-cleaning mode of the indoor unit is finished, the frequency of the compressor is controlled to be adjusted to the target frequency value, so that the four-way valve is reversed, the air conditioner is adjusted to be the heating mode, and the first three-way valve and the second three-way valve are controlled to form the first refrigerant circulation loop for heating, so as to implement the frosting control process of the outdoor unit self-cleaning. And further adjusting the compressor to operate at a fourth target frequency (such as 80Hz), and only operating the indoor unit fan at the maximum wind speed and the outdoor unit fan at a stop operation state without increasing an electronic expansion valve due to high temperature in summer, and entering a fourth defrosting stage when the operation time of the fourth frosting stage exceeds a seventh time threshold (such as 10 minutes). In the fourth defrosting stage, the outdoor unit fan is operated at the maximum wind speed, the outdoor unit fan is operated for 0.5 minute to blow dry, then the self-cleaning mode is quitted, 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 second port of the second three-way valve, the refrigeration state is recovered, the air conditioner continues to perform refrigeration operation, and meanwhile the starting time of the third self-cleaning mode is recorded.
In the embodiment of the invention, aiming at the scene that the outdoor environment temperature is higher than the target temperature threshold, the self-cleaning function of the outdoor unit is realized by setting the running parameters of the frosting stage and the defrosting stage in the fourth self-cleaning mode, and meanwhile, the air conditioner is set to be finely controlled under the second refrigerant circulation loop, so that the air conditioner is more accurately and effectively controlled to run in the self-cleaning mode of the outdoor unit, 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 outdoor unit of the air conditioner is improved.
According to the method provided by the embodiment of the invention, aiming at the scene that the outdoor environment temperature is higher than the target temperature threshold value, the target heating device is additionally arranged to heat the refrigerant, the opening and closing of the ports of the first three-way valve and the second three-way valve in the air conditioner are controlled, the refrigerant circulation loop is adjusted to execute the third self-cleaning mode and the fourth self-cleaning mode, the frosting control process and the defrosting control process in the self-cleaning mode can be efficiently realized, the indoor unit and the outdoor unit of the air conditioner are cleaned simultaneously, the applicability of the self-cleaning mode is improved, and the self-cleaning efficiency of the air conditioner is favorably 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 the target heating device to operate;
receiving a third input of the user, wherein the third input is used for starting a refrigeration 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 fourth refrigerant circulation loop and execute a refrigeration mode;
under the fourth refrigerant circulation loop, the path of the refrigerant circulation flow is sequentially a compressor, a condenser, an electronic expansion valve, an evaporator, a target heating device and a compressor.
Specifically, the third 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 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 invention, the first three-way valve is communicated with 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 is communicated with the first port and the second port, so that the path of the refrigerant circulating flow sequentially comprises the compressor, the condenser, the electronic expansion valve, the evaporator, the target heating device and the compressor, and a fourth refrigerant circulating 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 open and close, a fourth refrigerant circulation loop is formed, and the cooling mode of the air conditioner is executed under the fourth 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.
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 the target heating device to operate;
receiving a fourth input of the user, wherein the fourth input is used for starting a heating mode;
and responding to a fourth 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 circulating loop and execute a heating mode.
Specifically, the fourth 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 an embodiment of the present invention, a specific implementation manner of the fourth input may be the same as that of the first input, that is, the fourth 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 fourth 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, so that the path of the refrigerant circulation flow sequentially includes the compressor, the evaporator, the electronic expansion valve, the target heating device, the condenser, and the compressor, thereby forming the second refrigerant circulation circuit.
In addition, in the embodiment of the present invention, in response to a fourth input, ports of the first three-way valve and the second three-way valve are controlled to be opened and closed, a second refrigerant circulation loop is formed, and the heating 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 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 ninth 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 to run in the first self-cleaning mode from the target mode; the target duration takes the opening 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;
and after the second self-cleaning mode operation is finished, controlling the air conditioner to switch back to the target 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 ninth duration threshold described in the embodiment of the present invention refers to a preset duration threshold, and a specific value range of the ninth 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 ninth 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 for operation, 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 a specific embodiment of the invention, under the condition of heating in winter, when the air conditioner is determined to be operated in a target mode which is a heating mode and the accumulated operation time of the air conditioner exceeds 50 days, the air conditioner is controlled to automatically start a starting self-cleaning program, and after a first frosting stage of a first self-cleaning mode is entered, at the moment, the air conditioner is in a heating state, the frequency of a compressor is controlled to be adjusted to a target frequency value, a four-way valve is reversed, the air conditioner is adjusted to be in a refrigerating mode, and the air conditioner is in a refrigerating 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 10 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 in a heating state, a second refrigerant circulation loop can be formed by controlling the first three-way valve and the second three-way valve, so that the air conditioner can heat under the second refrigerant circulation loop, and the frosting control process of the self-cleaning of the outdoor unit is realized. And 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, stopping the operation of the outdoor unit fan, increasing the opening of the electronic expansion valve by 100 steps to accelerate the frosting time, preventing the outdoor condenser from being frozen, and entering a second frosting stage when the operation time of the second frosting stage exceeds a third time threshold (such as 10 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 and the second three-way valve, keeps the state of the air conditioner in the heating mode, continues to run according to the heating mode set by the air conditioner, and simultaneously records the starting time of the first self-cleaning mode.
According to the method provided by the embodiment of the invention, the self-cleaning mode is automatically started when the accumulated running time of the air conditioner exceeds the ninth time threshold value by setting the ninth 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 running 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 length from the last shutdown exceeds a tenth time length threshold value, 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;
and after the second self-cleaning mode operation is finished, controlling the air conditioner to enter a shutdown state.
Specifically, the tenth 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 tenth time threshold, that is, the time from the last shutdown when the air conditioner is in the shutdown state exceeds the tenth 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 tenth time length threshold value is set, and the self-cleaning mode is automatically started when the accumulated time length from the last shutdown exceeds the tenth time length threshold value, 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, 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, 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 tenth time threshold, the air conditioner enters an automatic shutdown self-cleaning mode; when the accumulated running time of the air conditioner exceeds a ninth 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.
The following describes the control device for self-cleaning of an air conditioner according to the present invention, and the control device for self-cleaning of an air conditioner described below and the control method for self-cleaning of an air conditioner described above may be referred to each other.
Fig. 3 is a schematic structural diagram of a control device for self-cleaning of an air conditioner according to the present invention, as shown in fig. 3, including:
a first input module 310, configured to receive a first input of a user when it is determined that a target heating device in the air conditioner is in an operating state and an outdoor ambient temperature is not greater than a target temperature threshold; the first input is used for starting a first self-cleaning mode, and the target heating device is used for heating an inflowing refrigerant;
a first control module 320, configured to control ports of a first three-way valve and a second three-way valve in the air conditioner to open and close in response to the first input, so as to form a first refrigerant circulation loop, and execute the first self-cleaning mode, so as to clean an indoor unit of the air conditioner;
the second control module 330 is configured to control ports of a first three-way valve and a second three-way valve in the air conditioner to open and close after the operation of the first self-cleaning mode is finished, so as to form a second refrigerant circulation loop, and execute a second self-cleaning mode to clean an outdoor unit of the air conditioner;
under the first refrigerant circulation loop, the path of the refrigerant circulation flow is a compressor, a condenser, an electronic expansion valve, an evaporator and the compressor;
and under the second 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.
The control device for self-cleaning of an air conditioner according to this embodiment may be used to implement the above-mentioned control method for self-cleaning of an air conditioner, and the principle and technical effects are similar, which are not described herein again.
The control device for self-cleaning of the air conditioner, provided by the embodiment of the invention, improves the internal pipeline structure of the air conditioner by adding the three-way valve and the heating device, receives 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 and the outdoor environment temperature is not more than a target temperature threshold value, responds to the first input, controls the ports of the first three-way valve and the second three-way valve in the air conditioner to be opened and closed to form a first refrigerant circulation loop, and enables the paths of the refrigerant circulation flow to be the compressor, the condenser, the electronic expansion valve, the evaporator and the compressor, so that a first self-cleaning mode is executed under the first refrigerant circulation loop, and the heat stored by the target heating device is not used in the self-cleaning process; and after the operation of the first self-cleaning mode is finished, controlling a first three-way valve and a second three-way valve in the air conditioner to form a second refrigerant circulation loop, enabling paths of refrigerant circulation flow to be a compressor, an evaporator, an electronic expansion valve, a target heating device, a condenser and a compressor, and performing auxiliary heating by using heat stored in the target heating device in the self-cleaning process of the outdoor unit when the second self-cleaning mode is executed, so that the freezing risk in a low-temperature environment can be effectively reduced, the indoor unit and the outdoor unit can be cleaned, and meanwhile, the self-cleaning efficiency of the outdoor unit of the air conditioner can be effectively 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 control method for self-cleaning 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 and the outdoor environment temperature is not greater than a target temperature threshold value; 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 the first self-cleaning mode to clean an indoor unit of the air conditioner; after the operation of the first self-cleaning mode is finished, 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 second refrigerant circulation loop, and executing a second self-cleaning mode to clean an outdoor unit of the air conditioner; under the first refrigerant circulation loop, the path of the refrigerant circulation flow is a compressor, a condenser, an electronic expansion valve, an evaporator and the compressor; and under the second 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.
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 including a computer program, the computer program being stored on a non-transitory computer-readable storage medium, the computer program being capable of executing, when executed by a processor, the control method for air conditioner self-cleaning 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 and the outdoor environment temperature is not greater than a target temperature threshold value; 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 the first self-cleaning mode to clean an indoor unit of the air conditioner; after the operation of the first self-cleaning mode is finished, 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 second refrigerant circulation loop, and executing a second self-cleaning mode to clean an outdoor unit of the air conditioner; under the first refrigerant circulation loop, the path of the refrigerant circulation flow is a compressor, a condenser, an electronic expansion valve, an evaporator and the compressor; and under the second 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.
In still 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 a control method for air conditioner self-cleaning provided to perform 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 and the outdoor environment temperature is not greater than a target temperature threshold value; 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 the first self-cleaning mode to clean an indoor unit of the air conditioner; after the operation of the first self-cleaning mode is finished, 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 second refrigerant circulation loop, and executing a second self-cleaning mode to clean an outdoor unit of the air conditioner; under the first refrigerant circulation loop, the path of the refrigerant circulation flow is a compressor, a condenser, an electronic expansion valve, an evaporator and the compressor; and under the second 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.
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 may be implemented by software plus a necessary general hardware platform, and may also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the 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 (15)

1. A control method for self-cleaning of an air conditioner is characterized by comprising 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 and the outdoor environment temperature is not greater than a target temperature threshold value; the first input is used for starting a 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;
after the operation of the first self-cleaning mode is finished, 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 second refrigerant circulation loop, and executing a second self-cleaning mode to clean an outdoor unit of the air conditioner;
under the first refrigerant circulation loop, the path of the refrigerant circulation flow is a compressor, a condenser, an electronic expansion valve, an evaporator and the compressor;
and under the second 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.
2. The control method for self-cleaning of an air conditioner according to claim 1, further comprising:
receiving a second input of a user if the target heating device is determined to be in the running state and the outdoor environment temperature is greater than the target temperature threshold; the second input is for turning on a third self-cleaning mode;
responding to the second 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 third refrigerant circulation loop, and executing the third self-cleaning mode to clean an indoor unit of the air conditioner;
under the third refrigerant circulation loop, the paths of the refrigerant circulation flow are the compressor, the condenser, the target heating device, the electronic expansion valve, the evaporator, the target heating device and the compressor;
and after the third self-cleaning mode is finished, controlling the opening and closing of the ports of a first three-way valve and a second three-way valve in the air conditioner to form the first refrigerant circulation loop, and executing a fourth self-cleaning mode to clean the outdoor unit of the air conditioner.
3. A control method for self-cleaning of an air conditioner according to claim 1, wherein the first self-cleaning mode is performed, comprising:
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 air conditioner is switched from the refrigerating mode to the heating mode, the indoor unit fan runs at the maximum wind speed, and a 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 the first frost formation stage and the first frost formation stage.
4. A control method for self-cleaning of an air conditioner according to claim 1, wherein said performing the second self-cleaning mode includes:
entering a second frosting stage;
in the second frosting stage, the air conditioner heats under the second refrigerant circulation loop, the compressor runs at a second target frequency, the indoor unit fan runs at a preset wind speed, the opening degree of the electronic expansion valve is adjusted to a first target opening degree, and the outdoor unit fan is in a stop running state;
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;
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;
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; the second self-cleaning mode includes the second frosting stage and the second frosting stage.
5. A control method for self-cleaning of an air conditioner according to claim 2, wherein the third self-cleaning mode is performed, comprising:
entering a third frosting stage;
in the third frosting stage, the air conditioner performs refrigeration under the third refrigerant circulation loop, the compressor runs at a third target frequency, the indoor unit fan is in a stop running state, and the outdoor unit fan is in a running state;
entering a third defrosting stage under the condition that the running time of the third defrosting stage exceeds a fifth time threshold;
in the third defrosting stage, the air conditioner is switched from the cooling mode to the heating mode, the indoor unit fan is in an operating state, and the indoor unit fan takes a sixth time length threshold value as an operating time length;
stopping running the third self-cleaning mode after the third defrosting stage is finished; the third self-cleaning mode includes the third frosting stage and the third frosting stage.
6. The control method for self-cleaning of an air conditioner according to claim 2, wherein the performing of the fourth self-cleaning mode includes:
entering a fourth frosting stage;
in the fourth frosting stage, the air conditioner heats under the first refrigerant circulation loop, the compressor runs at a fourth target frequency, the indoor unit fan runs at the maximum wind speed, the opening degree of the electronic expansion valve is adjusted to a second target opening degree, and the outdoor unit fan is in a stop running state;
entering a fourth defrosting stage of the fourth self-cleaning mode when the running time of the fourth defrosting stage exceeds a seventh time threshold;
in the fourth defrosting stage, the outdoor unit fan operates at the maximum wind speed, and an eighth time threshold is used as the operation time;
after the fourth defrosting stage is finished, stopping running the fourth self-cleaning mode, and recording the starting time of the third self-cleaning mode; the fourth self-cleaning mode includes the fourth frosting stage and the fourth frosting stage.
7. The control method for self-cleaning of an air conditioner according to claim 4, further comprising, after recording the turn-on time of the first self-cleaning mode:
when the target time length is determined to exceed a ninth 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.
8. The control method for self-cleaning of an air conditioner according to claim 4, further comprising:
when the air conditioner is determined to be in a shutdown state and the accumulated time from the last shutdown exceeds a tenth time threshold, 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.
9. The control method for self-cleaning of an air conditioner according to claim 7, further comprising, before said receiving a first input of a user:
under the condition of starting the air conditioner, starting the target heating device to operate;
receiving a third input of a user, wherein the third input is used for starting a refrigeration 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 fourth refrigerant circulation loop and execute the refrigeration mode;
in the fourth refrigerant circulation loop, the path of the refrigerant circulating flow is sequentially the compressor, the condenser, the electronic expansion valve, the evaporator, the target heating device and the compressor.
10. The control method for self-cleaning of an air conditioner according to claim 7, further comprising, before said receiving a first input of a user:
under the condition of starting the air conditioner, starting the target heating device to operate;
receiving a fourth input of a user, wherein the fourth input is used for starting a heating mode;
and responding to the fourth input, and controlling the opening and closing of the ports of the first three-way valve and the second three-way valve to form the second refrigerant circulation loop and execute the heating mode.
11. A control method for self-cleaning of an air conditioner according to any one of claims 1-10, wherein the target heating device is a solar heating device for heating a refrigerant flowing therethrough.
12. A control apparatus for self-cleaning of an air conditioner, comprising:
the first 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 and the outdoor environment temperature is not greater than a target temperature threshold value; 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 first 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 the first self-cleaning mode to clean an indoor unit of the air conditioner;
the second control module is used for controlling the opening and closing of ports of a first three-way valve and a second three-way valve in the air conditioner after the operation of the first self-cleaning mode is finished so as to form a second refrigerant circulation loop, and executing a second self-cleaning mode so as to clean an outdoor unit of the air conditioner;
under the first refrigerant circulation loop, the path of the refrigerant circulation flow is a compressor, a condenser, an electronic expansion valve, an evaporator and the compressor;
and under the second 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.
13. 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;
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;
further comprising a controller comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the control method for air conditioner self-cleaning as claimed in any one of claims 1 to 11 when executing the program.
14. A non-transitory computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the control method for air conditioner self-cleaning according to any one of claims 1 to 11.
15. A computer program product comprising a computer program, characterized in that the computer program, when being executed by a processor, implements the control method for air conditioner self-cleaning according to any one of claims 1 to 11.
CN202210612410.6A 2022-05-31 2022-05-31 Control method and device for self-cleaning of air conditioner, air conditioner and storage medium Pending CN114893862A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115654694A (en) * 2022-11-04 2023-01-31 青岛海尔空调器有限总公司 Control method and control device of air conditioner and air conditioner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115654694A (en) * 2022-11-04 2023-01-31 青岛海尔空调器有限总公司 Control method and control device of air conditioner and air conditioner

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