CN116428708A - Air conditioner and self-cleaning method thereof - Google Patents

Air conditioner and self-cleaning method thereof Download PDF

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Publication number
CN116428708A
CN116428708A CN202310290190.4A CN202310290190A CN116428708A CN 116428708 A CN116428708 A CN 116428708A CN 202310290190 A CN202310290190 A CN 202310290190A CN 116428708 A CN116428708 A CN 116428708A
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China
Prior art keywords
air conditioner
self
air outlet
preset
frosting
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Pending
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CN202310290190.4A
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Chinese (zh)
Inventor
李华刚
马振豪
荆涛
蔡泽瑶
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Haier Air Conditioner Gen Corp Ltd
Qingdao Haier Smart Technology R&D Co Ltd
Qingdao Haier Air Conditioning Electric Co Ltd
Haier Smart Home Co Ltd
Original Assignee
Qingdao Haier Air Conditioner Gen Corp Ltd
Qingdao Haier Smart Technology R&D Co 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 Smart Technology R&D Co Ltd, Qingdao Haier Air Conditioning Electric Co Ltd, Haier Smart Home Co Ltd filed Critical Qingdao Haier Air Conditioner Gen Corp Ltd
Priority to CN202310290190.4A priority Critical patent/CN116428708A/en
Publication of CN116428708A publication Critical patent/CN116428708A/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
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • 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
    • F24F11/41—Defrosting; Preventing freezing
    • 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
    • F24F11/56—Remote control
    • F24F11/58—Remote control using Internet 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
    • F24F11/62—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
    • 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
    • F24F11/65—Electronic processing for selecting an operating mode
    • 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
    • F24F2110/30—Velocity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/20—Heat-exchange fluid temperature
    • 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)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Fluid Mechanics (AREA)
  • Human Computer Interaction (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention relates to the technical field of air conditioners, in particular to an air conditioner and a self-cleaning method thereof, and aims to solve the problem that a heat exchanger cannot be cleaned in time due to the fact that a self-cleaning mode is started manually in the prior art. To this end, the self-cleaning method of the present invention comprises: when the operation of the air conditioner is stable, acquiring a first air outlet speed at an air outlet; acquiring a preset air outlet speed at an air outlet; and controlling the air conditioner to continue to operate according to the current parameters or to operate the self-cleaning mode based on the first air outlet speed and the preset air outlet speed. According to the self-cleaning air conditioner, whether the self-cleaning mode is operated or not is controlled based on the air outlet speed at the air outlet, so that the operation of the air conditioner can be controlled according to the specific condition of the air conditioner at any time, the air conditioner is self-cleaned in time, the heat exchange efficiency of the heat exchanger is better ensured, and the reliability of the self-cleaning function of the air conditioner is improved.

Description

Air conditioner and self-cleaning method thereof
Technical Field
The invention relates to the technical field of air conditioners, and particularly provides an air conditioner and a self-cleaning method thereof.
Background
With the improvement of the living standard of people, the air conditioner has become an indispensable household appliance in the home because of its ability to adjust the temperature of the indoor space and improve the air quality of the indoor space. However, after the air conditioner is operated for a long time, a large amount of dust or foreign materials are inevitably attached to the surfaces of both the indoor heat exchanger and the outdoor heat exchanger, which may reduce the heating or cooling capacity of the air conditioner, affecting comfort. In addition, the power consumption is increased due to the improvement of the power consumption, so that the resource waste is caused.
At present, the aim of cleaning the indoor heat exchanger and the outdoor heat exchanger can be achieved by performing self-cleaning treatment on the air conditioner. However, at present, a user usually manually presses a remote controller or a key on an APP matched with the air conditioner to start a self-cleaning mode of the air conditioner, so that there is a situation that surfaces of an indoor heat exchanger and an outdoor heat exchanger are dirty, but the user does not select the self-cleaning mode, so that the air conditioner is not timely self-cleaned, and the user feels that the reliability of the air conditioner with the self-cleaning capability is not high.
Accordingly, there is a need in the art for a new solution to the above-mentioned problems.
Disclosure of Invention
The invention aims to solve the technical problems, namely the problem that the heat exchanger cannot be cleaned in time due to the fact that a self-cleaning mode is started manually in the prior art.
In a first aspect, the present invention provides a self-cleaning method of an air conditioner, the self-cleaning method comprising: when the operation of the air conditioner is stable, acquiring a first air outlet speed at an air outlet; acquiring a preset air outlet speed at the air outlet; and controlling the air conditioner to continue to operate according to the current parameters or to operate in a self-cleaning mode based on the first air outlet speed and the preset air outlet speed.
In the above preferred technical solution of the self-cleaning method, the step of controlling the air conditioner to continue to operate according to the current parameters or to operate the self-cleaning mode "based on the first air outlet speed and the preset air outlet speed further includes: calculating a first difference value between the preset air outlet speed and the first air outlet speed; determining a pollution level of the heat exchanger based on the first difference; and controlling the air conditioner to continue to operate according to the current parameters or operate the self-cleaning mode based on the pollution level.
In the above preferred technical solution of the self-cleaning method, the step of controlling the air conditioner to continue to operate according to the current parameters or to operate in the frosting mode based on the pollution level further includes: and if the pollution level is greater than a pollution level threshold, controlling the air conditioner to operate the self-cleaning mode.
In the preferred technical solution of the above self-cleaning method, the self-cleaning mode includes a frosting mode and a defrosting mode, and the step of controlling the air conditioner to operate in the self-cleaning mode further includes: controlling the air conditioner to enter the frosting mode; determining a preset frosting grade based on the pollution degree grade; acquiring a second air outlet speed at the air outlet; calculating a second difference value between the preset air outlet speed and the second air outlet speed; judging whether the frosting grade of the air conditioner reaches the preset frosting grade or not based on the second difference value; and controlling the air conditioner to continue to operate in the frosting mode or the defrosting mode based on the judging result.
In the above preferred technical solution of the self-cleaning method, the step of controlling the air conditioner to continue to operate in the frosting mode or the defrosting mode based on the determination result further includes: if the frosting grade of the air conditioner does not reach the preset frosting grade, controlling the air conditioner to continue to operate in the frosting mode; and if the frosting grade of the air conditioner reaches the preset frosting grade, controlling the air conditioner to operate the defrosting mode.
In a preferred technical solution of the self-cleaning method, the self-cleaning method further includes: after the air conditioner is controlled to enter the defrosting mode, determining a preset defrosting grade based on the preset frosting grade; and when the defrosting grade of the air conditioner reaches the preset defrosting grade, controlling the air conditioner to finish running the self-cleaning mode.
In a preferred technical solution of the self-cleaning method, the self-cleaning method further includes: the preset frosting grade is improved along with the improvement of the pollution degree grade; and/or the preset defrost level increases as the preset frosting level increases.
In a preferred technical solution of the self-cleaning method, the self-cleaning method further includes: after the air conditioner is controlled to finish running the self-cleaning mode, the air conditioner is controlled to run according to parameters before the air conditioner runs the self-cleaning mode, and the air conditioner is continuously and selectively controlled to run the self-cleaning mode again according to a third difference value between the preset air outlet speed and a third air outlet speed at the air outlet.
In the above preferred technical solution of the self-cleaning method, the step of controlling the air conditioner to continue to operate according to the current parameters or to operate in the frosting mode based on the pollution level further includes: and if the pollution level is smaller than or equal to the pollution level threshold, controlling the air conditioner to continue to operate according to the current parameters.
In the technical scheme of the invention, the control method comprises the following steps: when the operation of the air conditioner is stable, the first air outlet speed and the preset air outlet speed are obtained, and the air conditioner is controlled to continue to operate according to the current parameters or to operate the self-cleaning mode based on the first air outlet speed and the preset air outlet speed, namely, whether the air conditioner operates the self-cleaning mode or not is controlled based on the air outlet speed at the air outlet, the air outlet speed can reflect the dust accumulation degree of the surface of the heat exchanger when the operation of the air conditioner is stable, so that the operation of the air conditioner can be controlled at any time according to the specific condition of the air conditioner, the operation of the air conditioner can be continuously performed according to the current parameters when the heat exchanger of the air conditioner is not required to be cleaned, and the self-cleaning mode is also performed when the heat exchanger of the air conditioner is required to be cleaned, so that the cleaning degree of the surface of the heat exchanger can be maintained in time, the heat exchange efficiency of the heat exchanger is ensured, and the reliability of the self-cleaning function of the air conditioner is further improved.
Further, a first difference value between a preset air outlet speed and a first air outlet speed is calculated, the pollution degree level of the heat exchanger is determined based on the first difference value, if the pollution degree level is larger than a pollution degree threshold value, the fact that the surface of the current heat exchanger is dirty is indicated, the heat exchanger needs to be self-cleaned, at the moment, the air conditioner is controlled to operate in a self-cleaning mode, and the heat exchanger is cleaned, so that the heat exchange efficiency of the heat exchanger is guaranteed. If the pollution level is smaller than or equal to the pollution level threshold, the surface of the current heat exchanger is not dirty, and at the moment, the air conditioner is controlled to continue to operate according to the current parameters so as to meet the requirement of a user on the temperature of the indoor space. Through the control mode, the self-cleaning mode can be started in time when the surface of the heat exchanger is dirty so as to clean the heat exchanger, so that the heat exchange efficiency of the heat exchanger can be better ensured, and the user experience is improved.
Further, when the air conditioner is controlled to operate in the self-cleaning mode, the air conditioner is controlled to enter the frosting mode, the preset frosting level is determined based on the pollution level of the heat exchanger, and then whether the frosting level of the air conditioner reaches the preset frosting level is judged based on the second difference value of the preset air outlet speed and the second air outlet speed. If the frosting grade of the air conditioner reaches the preset frosting grade, the frosting condition of the surface of the current heat exchanger is indicated to meet the self-cleaning requirement, at the moment, the air conditioner is controlled to operate in a defrosting mode, and the frosting layer on the surface of the heat exchanger is removed through the operation of the defrosting mode, so that the purpose of cleaning the heat exchanger is achieved. If the frosting grade of the air conditioner does not reach the preset frosting grade, the frosting quantity of the surface of the current heat exchanger cannot meet the self-cleaning requirement, and at the moment, the air conditioner is controlled to continue to operate in a frosting mode to continue frosting. When the air conditioner operates in the frosting mode, whether the air conditioner continuously frosts or not is controlled according to the frosting degree of the air conditioner, and whether the frosting degree of the air conditioner reaches the self-cleaning requirement is determined based on the pollution degree grade of the heat exchanger, so that more proper frosting amount can be condensed on the surface of the heat exchanger, dirt on the surface of the heat exchanger can be removed, and energy waste caused by excessive frosting is avoided.
Further, after the air conditioner is controlled to enter the defrosting mode, a preset defrosting grade is determined based on the preset frosting grade, and when the defrosting grade of the air conditioner reaches the preset defrosting grade, the air conditioner is controlled to finish running the self-cleaning mode. Therefore, the frost layer formed on the surface of the heat exchanger when the air conditioner operates in the frosting mode can be removed better, the influence on the heat exchange efficiency of the heat exchanger caused by the fact that the frost layer remains on the surface of the heat exchanger is avoided, and further, a better self-cleaning effect can be obtained, and the heat exchange efficiency of the heat exchanger is ensured better.
In a second aspect, the present invention also provides an air conditioner comprising a control module configured to be able to perform the self-cleaning method of any one of the preceding claims 1 to 9.
It should be noted that the air conditioner has all the technical effects of the self-cleaning method of the foregoing solution, and the description thereof is omitted herein.
Drawings
Preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:
FIG. 1 is a control flow chart of a self-cleaning method of an air conditioner according to an embodiment of the present invention;
FIG. 2 is a control flow chart of an embodiment of the present invention for controlling an air conditioner to operate in a self-cleaning mode according to a first air outlet velocity at an air outlet of an indoor unit;
FIG. 3 is a control flow diagram of an air conditioner after entering a frosting mode according to an embodiment of the present invention;
fig. 4 is a control flow chart of an embodiment of the present invention after the air conditioner enters a defrost mode.
Detailed Description
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention.
It should be noted that in the description of the present invention, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, it should be noted that, in the description of the present application, unless explicitly stated and limited otherwise, the terms "coupled," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those skilled in the art as the case may be.
At present, a user usually relies on manually pressing a remote controller or a key on an APP matched with the air conditioner to start a self-cleaning mode of the air conditioner, so that the air conditioner cannot be cleaned in time, and the user feels that the reliability of the air conditioner with self-cleaning capability is not high. Therefore, the operation of the air conditioner is controlled according to the first air outlet speed, so that the heat exchanger can be cleaned timely, the heat exchange efficiency of the heat exchanger is ensured, and the reliability of the self-cleaning function is further improved.
The air conditioner comprises an indoor unit and an outdoor unit, wherein the indoor unit comprises an indoor fan and an indoor heat exchanger, the outdoor unit comprises a compressor, an outdoor fan and an outdoor heat exchanger, the compressor is used for enabling a refrigerant to circulate between the indoor heat exchanger and the outdoor heat exchanger, and the purpose of heating or refrigerating is achieved by means of heat release or heat absorption of the refrigerant at the indoor heat exchanger. The indoor fan is used for introducing air in the indoor space into the indoor unit, exchanging heat with the indoor heat exchanger and then returning the air to the indoor space, and the outdoor fan is used for introducing air in the outdoor environment into the outdoor unit, exchanging heat with the outdoor heat exchanger and then blowing out of the outdoor unit.
According to the invention, the air outlet of the indoor unit and the air outlet of the outdoor unit are respectively provided with the air speed sensors, and the air outlet speed of the air outlet of the indoor unit and the air outlet speed of the air outlet of the outdoor unit can be respectively detected by the two air speed sensors. When the wind speed sensor is used to detect the wind speed at the wind outlets of the indoor unit and the outdoor unit, the wind speed may be continuously detected in real time, or may be detected once every preset time period, for example, every 5 seconds.
It should be noted that the wind speed sensor may be, but is not limited to, a mechanical wind speed sensor and an ultrasonic wind speed sensor.
The air speed detector may be provided only at the air outlet of the indoor unit or at the air outlet of the outdoor unit. For convenience of description, the following description will be made taking an example in which an air speed sensor at an air outlet of an indoor unit detects an air outlet speed at the air outlet of the indoor unit.
According to the invention, the air conditioner further comprises a control module, the control module can control the air conditioner to continue to operate according to the current parameters or operate the self-cleaning mode based on the first air outlet speed and the preset air outlet speed, can determine the pollution degree grade of the heat exchanger based on the first difference value between the preset air outlet speed and the first air outlet speed, then control the air conditioner to continue to operate according to the current parameters or operate the self-cleaning mode based on the pollution degree grade, can judge whether the frosting grade of the air conditioner reaches the preset frosting grade based on the second difference value between the preset air outlet speed and the second air outlet speed after the air conditioner enters the frosting mode, and can control the air conditioner to continue to operate the frosting mode or operate the defrosting mode based on the judgment result, and can control the air conditioner to end to operate the self-cleaning mode when the defrosting grade of the air conditioner reaches the preset defrosting grade after the air conditioner enters the defrosting mode.
It should be noted that, the control module may be a control chip of the air conditioner physically, a controller dedicated to executing the method of the present application, or a functional module or a functional unit of the general controller.
Possible implementations of the self-cleaning method of the air conditioner of the present invention are described below with reference to fig. 1 to 4.
As shown in fig. 1, in one possible embodiment, the self-cleaning method of the present invention comprises:
s100: acquiring a first air outlet speed at an air outlet of an indoor unit;
s101: acquiring a preset air outlet speed at an air outlet of the indoor unit;
s102: and controlling the air conditioner to continue to operate according to the current parameters or to operate the self-cleaning mode based on the first air outlet speed and the preset air outlet speed.
In S100, a first air outlet speed at an air outlet of the indoor unit is obtained by the air speed sensor.
After the structures of the indoor heat exchanger and the outdoor heat exchanger are determined, the resistance of the surfaces of the indoor heat exchanger and the outdoor heat exchanger to air is substantially constant. However, after dust or foreign matter is deposited on the surfaces of the indoor heat exchanger and the outdoor heat exchanger, the resistance to air is changed, and thus the air outlet speeds at the air outlets of the indoor unit and the outdoor unit are also changed. That is, the air outlet speeds at the air outlets of the indoor unit and the outdoor unit can reflect the ash accumulation degree of the surfaces of the indoor heat exchanger and the outdoor heat exchanger.
In S101, a preset air outlet speed at an air outlet of the indoor unit is obtained.
The preset air outlet speed may be stored in the air conditioner in advance, and may be considered as an air outlet speed formed at an air outlet of the indoor unit when the indoor fan is operated at a predetermined rotational speed when the surface of the indoor heat exchanger is substantially free of dust and foreign matters (for example, when the air conditioner is operated for the first time, or when the indoor heat exchanger is just self-cleaned, or the like). That is, the preset outlet air speed is related to the rotational speed of the indoor fan. Generally, the higher the rotational speed of the indoor fan, the greater the preset air outlet speed.
For example, an air-out speed database may be constructed in advance, where the air-out speed database includes reference rotational speeds of a plurality of indoor fans and reference air-out speeds corresponding to different reference rotational speeds. When the preset air outlet speed of the air outlet of the indoor fan is obtained, the current rotating speed of the indoor fan is obtained, then the current rotating speed is matched with the reference rotating speed in the air outlet speed database, and the reference air outlet speed corresponding to the reference rotating speed matched with the current rotating speed is determined to be the preset air outlet speed. Obviously, a comparison table can be constructed in advance, in the comparison table, the reference rotational speeds of different indoor fans are in one-to-one correspondence with the reference air outlet speeds, the current rotational speed of the indoor fans is compared with the reference rotational speed in the comparison table, and the reference air outlet speed corresponding to the reference rotational speed consistent with the current rotational speed is determined as the preset air outlet speed. It should be noted that, the reference air-out speed corresponding to the reference rotational speed in the air-out speed database and the comparison table may be determined by a technician through calculation, experiment, experience, etc. On the premise of not deviating from the basic principle of the application, a person skilled in the art can flexibly select a specific mode for determining the first preset air outlet rotating speed according to specific application scenes, so long as the preset air outlet velocity at the air outlet of the indoor unit can be accurately obtained.
It should be noted that, the execution of S100 and S101 is not limited to the sequential execution, and S100 and S101 may be executed first, or S101 and S100 may be executed first, or S100 and S101 may be executed simultaneously.
In S102, the air conditioner is controlled to continue to operate according to the current parameters or to operate in a self-cleaning mode based on the first air outlet speed obtained in S100 and the preset air outlet speed obtained in S101.
The self-cleaning of the air conditioner can be realized by brushing a brush, spraying and cleaning, or frosting and defrosting.
Through the control mode, the indoor heat exchanger can be continuously operated according to the current parameters when the indoor heat exchanger is not required to be cleaned, and the self-cleaning mode is operated when the indoor heat exchanger is required to be cleaned, so that the indoor heat exchanger can be cleaned timely, the surface cleanliness of the indoor heat exchanger is better maintained, and the reliability of the self-cleaning function of the air conditioner is improved.
As shown in fig. 2, in one possible embodiment, the self-cleaning method of the present invention further comprises:
s200: acquiring a first air outlet speed at an air outlet of an indoor unit;
S201: acquiring a preset air outlet speed at an air outlet of the indoor unit;
s202: calculating a first difference value between a preset air outlet speed and a first air outlet speed;
s203: determining a pollution level of the indoor heat exchanger based on the first difference value;
s204: judging whether the pollution degree level is greater than a pollution degree threshold value, if so, executing S205; if not, executing S206;
s205: controlling the air conditioner to operate in a self-cleaning mode;
s206: and controlling the air conditioner to operate according to the current parameters.
In S200, similar to S100, the first air outlet speed at the air outlet of the indoor unit is obtained by the air speed sensor.
In S201, similar to S101 described above, a preset air outlet speed at an air outlet of the indoor unit is obtained.
It should be noted that, the execution of S200 and S201 is not separately performed, and S200 and S201 may be performed first, or S201 and S200 may be performed first, or S200 and S201 may be performed simultaneously.
In S202, subtracting the first air-out speed obtained in S200 from the preset air-out speed obtained in S201 to obtain a first difference.
In S203, a pollution level of the indoor heat exchanger is determined based on the first difference determined in S202.
It should be noted that, the first air outlet speed at the air outlet of the indoor unit can reflect the dirt degree of the surface of the indoor heat exchanger, and then, when the rotating speed of the indoor fan is unchanged, the first difference value calculated based on the first air outlet speed can accurately reflect the dirt degree level of the indoor heat exchanger. The larger the first difference, the more dirty the surface of the indoor heat exchanger, and the higher the pollution level. Typically one pollution level corresponds to a first difference in a range. That is, the contamination level is used to characterize the contamination level of the indoor heat exchanger surfaces. It should be noted that, the number of levels of the pollution level may be flexibly divided according to the specific application scenario by those skilled in the art, for example, the pollution level may include three levels of one level, two levels, three levels, or five levels of one level, two levels, three levels, four levels, five levels, or obviously, other numbers of levels may be included.
For example, a pollution level database may be constructed in advance, in which different wind speed ranges and reference pollution levels corresponding to the respective wind speed ranges are stored, the first difference value determined in S202 is matched with the wind speed range in the pollution level database, and the reference pollution level corresponding to the wind speed range including the first difference value is determined as the pollution level of the indoor heat exchanger. For example, in the pollution level database, the reference pollution level corresponding to the first difference in S202 is 1m/S, and the wind speed range is 0-2 m/S is one level, and then the pollution level corresponding to the first difference in S202 is one level.
Obviously, a comparison table may be constructed, in which different wind speed ranges are in one-to-one correspondence with the reference pollution level, the first difference value determined in S202 is matched with the wind speed range in the comparison table, and the reference pollution level corresponding to the wind speed range including the first difference value is determined as the pollution level of the indoor heat exchanger. On the premise of not deviating from the basic principle of the application, a specific mode for determining the pollution level of the indoor heat exchanger based on the first difference value can be determined by a person skilled in the art according to specific application scenes, so long as the pollution level of the indoor heat exchanger can be accurately determined.
In S204, based on the contamination level determined in S203, it is determined whether the contamination level is greater than a contamination level threshold.
If the contamination level is greater than the contamination level threshold, for example, the first difference obtained in S202 is 3m/S, the contamination level determined in S203 is two levels, and the contamination level threshold is one level. The fact that the surface of the indoor heat exchanger is dirty at this time is described that the indoor heat exchanger needs to be self-cleaned, at this time, the air conditioner is controlled to operate in a self-cleaning mode, that is, S205 is executed, and the cleanliness of the surface of the indoor heat exchanger is ensured by self-cleaning the indoor heat exchanger, so that the heat exchange efficiency of the indoor heat exchanger is ensured.
If the contamination level is equal to or less than the contamination level threshold, for example, the first difference obtained in S202 is 1m/S, the contamination level determined in S203 is one level, and the contamination level threshold is one level. At this time, the air conditioner is controlled to continue to operate according to the current parameters, that is, the step S206 is executed, and the temperature of the indoor space is adjusted by the air conditioner so as to meet the requirements of users. And simultaneously returning to execute S200, and continuously judging whether the air conditioner needs to be controlled to operate in a self-cleaning mode according to the first air outlet speed at the air outlet of the indoor unit.
When the pollution level is less than or equal to the pollution level threshold, the air conditioner can be directly controlled to stop running so as to avoid secondary pollution to the air in the indoor space.
Through the control mode, the indoor heat exchanger can be cleaned timely on the basis of meeting the demands of users, so that unnecessary self-cleaning times can be reduced on the basis of ensuring the heat exchange efficiency of the indoor heat exchanger, energy is saved, and user experience is improved.
It should be noted that, after the first air outlet speed and the preset air outlet speed are obtained, the pollution level may not be determined based on the first difference between the preset air outlet speed and the first air outlet speed, and then whether the air conditioner operates in the self-cleaning mode may be controlled based on the comparison result between the pollution level and the pollution level threshold, but the air conditioner may be directly controlled to operate in the self-cleaning mode when the first air outlet temperature is less than the first preset air outlet temperature, and so on.
In one possible embodiment, the self-cleaning mode of the air conditioner includes a frosting mode and a defrosting mode, that is, the air conditioner is self-cleaned by frosting and then defrosting. Possible implementations of the air conditioner operation self-cleaning mode of the present invention are described below with reference to fig. 3 and 4.
As shown in fig. 3, in one possible embodiment, the self-cleaning method of the present invention further comprises:
s300: controlling the air conditioner to enter a frosting mode;
s301: determining a preset frosting grade based on the pollution degree grade;
s302: acquiring a second air outlet speed at an air outlet of the indoor unit;
s303: acquiring a preset air outlet speed at an air outlet of the indoor unit;
s304: calculating a second difference value between the preset air outlet speed and the second air outlet speed;
s305: judging whether the frosting grade of the air conditioner reaches a preset frosting grade or not based on the second difference value;
s306: if the frosting grade of the air conditioner reaches the preset frosting grade, controlling the air conditioner to operate in a defrosting mode;
s307: and if the frosting grade of the air conditioner does not reach the preset frosting grade, controlling the air conditioner to continue to operate in the frosting mode.
In S300, after the air conditioner is controlled to operate in the self-cleaning mode in S205, the air conditioner is first controlled to enter the frosting mode to start frosting on the surface of the indoor heat exchanger.
In S301, after the air conditioner enters the frosting mode, a preset frosting level is determined based on the pollution level determined in S203.
It should be noted that S301 may be executed before S300 is executed, or S300 and S301 may be executed simultaneously.
In one possible embodiment, the preset frost level increases with increasing pollution level, and the higher the pollution level, the more dirty the surface of the indoor heat exchanger is, the larger the required frost amount is, and further the longer the required frost time is, and the higher the preset frost level is required to be reached. That is, the preset frost level is used to characterize the theoretical amount of frost required to clean the indoor heat exchanger at that pollution level.
It should be noted that, a person skilled in the art may flexibly divide the number of levels of the preset frost level according to a specific application scenario, for example, the preset frost level may include three levels of one level, two levels, and three levels, or may include five levels of one level, two levels, three levels, four levels, and five levels, and obviously, may also include other numbers of levels.
For example, a preset frost level database may be pre-constructed, where different pollution levels and reference frost levels corresponding to the pollution levels are stored in the database, the pollution level determined in S203 is matched with the pollution level in the database, and the reference frost level corresponding to the pollution level successfully matched is determined as the preset frost level. For example, the determined pollution level in S203 is one level, and in the preset frost level database, the reference frost level corresponding to the one level pollution level is one level, and then the preset frost level is also one level, and so on.
Obviously, a comparison table may be constructed, in which different pollution levels are in one-to-one correspondence with the reference frost levels, the pollution level determined in S203 is compared with the pollution level in the comparison table, and the reference frost level corresponding to the pollution level in S203 is determined as the preset frost level. On the premise of not deviating from the basic principle of the application, a specific mode of determining the preset frosting grade based on the pollution degree grade can be determined by a person skilled in the art according to specific application scenes, so long as the preset frosting grade of the current indoor heat exchanger can be accurately determined.
In S302, similar to S100 and S200, the second air outlet speed at the air outlet of the indoor unit is obtained by the air speed sensor.
In S303, similar to the above-mentioned acquisition of the preset wind speed in S101 and S201, the preset wind speed is acquired by constructing a wind speed database or a comparison table in advance.
It should be noted that the execution of S300 and S301 is not limited to the sequential execution, and S300 and S301 may be executed first, or S301 and S300 may be executed first, or S300 and S301 may be executed simultaneously.
In S304, subtracting the second air-out speed obtained in S302 from the preset air-out speed obtained in S303 to obtain a second difference.
In S305, based on the second difference value calculated in S304, it is determined whether the frost level of the air conditioner reaches the preset frost level determined in S301.
It should be noted that the frosting amount of the indoor heat exchanger surface also affects the air outlet speed at the air outlet of the indoor unit, and the larger the second difference value is, the more the frosting amount of the indoor heat exchanger surface is, the higher the frosting level is, and generally, one frosting level corresponds to the second difference value in a range. That is, the frost level is used to characterize the amount of frost on the indoor heat exchanger surface. For example, the frost level may be adjusted by controlling the frost formation time period, the longer the frost formation time, the higher the frost formation level.
Similar to the above-described preset frosting grades, the frosting grades of the air conditioner may be classified into three grades of one grade, two grade, three grade, or five grades of one grade, two grade, three grade, four grade, five grade, etc.
For example, a frost formation level database may be previously constructed, in which different wind speed ranges and reference frost formation levels corresponding to the respective wind speed ranges are stored, the second difference value determined in S304 is matched with the wind speed range in the frost formation level database, and the reference frost formation level corresponding to the wind speed range including the second difference value is determined as the frost formation level of the indoor heat exchanger. For example, the determined second difference in S304 is 1m/S, the reference frost level corresponding to the wind speed range of 0 to 2m/S is one level in the frost level database, then the frost level corresponding to the second difference is also one level, and so on.
Obviously, a comparison table may be constructed, in which different wind speed ranges are in one-to-one correspondence with the reference frost levels, the second difference value determined in S304 is matched with the wind speed range in the comparison table, and the reference frost level corresponding to the wind speed range including the first difference value is determined as the frost level of the indoor heat exchanger. The specific manner of determining the frost level of the indoor heat exchanger based on the first difference value can be determined by a person skilled in the art according to a specific application scenario without departing from the basic principle of the application, as long as the frost level of the indoor heat exchanger can be accurately determined.
In S306, if the frost level determined in S305 does not reach the preset frost level determined in S301, for example, the frost level determined in S305 is first order, and the preset frost level determined in S301 is second order. The frosting quantity of the surface of the indoor heat exchanger is insufficient, and dust on the surface of the indoor heat exchanger is not removed, and at the moment, the air conditioner is controlled to continue to operate in a frosting mode, and the frosting quantity is continuously increased.
In S307, if the frost level determined in S305 reaches the preset frost level determined in S301, for example, the frost level determined in S305 is two, and the preset frost level determined in S301 is two. The existing frosting quantity of the surface of the indoor heat exchanger is enough, dust on the surface of the indoor heat exchanger can be effectively removed by using the frosting quantity, continuous frosting is not needed, and at the moment, the air conditioner is controlled to operate in a defrosting mode so as to remove a frosting layer formed on the surface of the indoor heat exchanger. And simultaneously returning to execute S302, and continuously judging whether the frosting grade of the air conditioner reaches the preset frosting grade according to the second air outlet speed at the air outlet of the indoor unit.
It should be noted that if the frost formation level of the air conditioner reaches the preset frost formation level, the air conditioner may be controlled to operate in the frost formation mode after a period of time, so as to form more frost on the surface of the indoor heat exchanger.
Through the control mode, more proper frosting quantity can be condensed on the surface of the heat exchanger, dirt on the surface of the heat exchanger can be removed, and energy waste caused by excessive frosting can be avoided.
It should be noted that, when the air conditioner is controlled to operate in the self-cleaning mode, whether the defrosting mode is operated may not be determined based on whether the frosting level of the indoor heat exchanger reaches the preset frosting level, but the air conditioner may be directly controlled to enter the defrosting mode after the air conditioner is controlled to enter the frosting mode for a preset period of time.
As shown in fig. 4, in one possible embodiment, the self-cleaning method of the present invention further comprises:
s400: determining a preset defrost level based on the preset defrost level;
s401: and when the defrosting grade of the air conditioner reaches a preset defrosting grade, controlling the air conditioner to finish running the self-cleaning mode.
In S400, after controlling the air conditioner to enter the defrost mode, a preset defrost level is determined based on the preset defrost level determined in S301.
Since the air conditioner controls the air conditioner to operate in the defrosting mode after the frosting level reaches the preset frosting level, the frosting level of the indoor heat exchanger can be considered to be the preset frosting level after the air conditioner enters the defrosting mode.
In one possible embodiment, the preset defrost level is increased with an increase in the preset defrost level, the higher the defrost level that needs to be achieved in order to obtain a better defrost effect. That is, the preset defrost level is a theoretical defrost force required to characterize the amount of frost on the indoor heat exchanger surfaces.
Similar to the above-described preset frost formation level, the preset frost formation level may be divided into three levels of one level, two levels, three levels, or five levels of one level, two levels, three levels, four levels, five levels, etc.
For example, a preset defrost level database may be previously constructed, in which different frost formation levels and reference defrost levels corresponding to the respective preset frost formation levels are stored, the preset frost formation level determined in S301 is matched with the frost formation level in the defrost level database, and the reference defrost level corresponding to the successfully matched frost formation level is determined as the preset defrost level. For example, the preset frost level determined in S301 is one level, and in the preset defrost level database, the reference defrost level corresponding to the frost level of one level is one level, and then the preset defrost level is also one level, and so on.
Obviously, a comparison table may be constructed, in which different frost formation levels are in one-to-one correspondence with the reference frost formation levels, the preset frost formation level determined in S301 is compared with the frost formation level in the comparison table, and the reference frost formation level corresponding to the preset frost formation level in S301 is determined as the preset frost formation level. On the premise of not deviating from the basic principle of the application, a specific mode of determining the preset defrosting grade based on the preset frosting grade can be determined by a person skilled in the art according to specific application scenes, so long as a good defrosting effect can be obtained based on the determined preset defrosting grade.
In S401, determining a defrosting level of the air conditioner, and when the defrosting level of the air conditioner reaches a preset defrosting level, it can be considered that the frost layer on the surface of the indoor heat exchanger is basically removed, and at this time, controlling the air conditioner to end to operate the self-cleaning mode.
The defrosting level may be adjusted by the coil temperature of the indoor heat exchanger, the duration of time at the temperature, the rotational speed of the indoor fan, and the like. Similar to the above-described preset defrost level, the preset defrost level may be divided into three levels of one level, two levels, three levels, or five levels of one level, two levels, three levels, four levels, five levels, etc.
In the present embodiment, the defrost level of the air conditioner may be determined by: for example, a defrosting level database may be pre-constructed, in which different coil temperatures and rotational speeds of the fans and reference defrosting levels corresponding to respective parameters are stored, the coil temperatures of the indoor heat exchanger and the rotational speeds of the indoor fans are matched with the temperatures and rotational speeds in the database, and the reference defrosting levels corresponding to the successfully matched temperatures and rotational speeds are determined as the defrosting level of the air conditioner.
Obviously, a comparison table can be constructed, in which different coil temperatures and rotating speeds of the fans are respectively in one-to-one correspondence with different reference defrosting grades, the coil temperatures of the indoor heat exchanger and the rotating speeds of the indoor fans are compared with the temperatures and rotating speeds in the comparison table, and the reference defrosting grade corresponding to the temperatures and rotating speeds corresponding to the coil temperatures and rotating speeds of the indoor heat exchanger is determined as the defrosting grade of the air conditioner.
Of course, the fourth air outlet speed at the air outlet of the indoor unit may be obtained again, and a fourth difference between the preset air outlet speed and the fourth air outlet speed may be calculated. At this time, a defrosting level database may be previously constructed, in which different wind speed ranges and reference defrosting levels corresponding to the respective wind speed ranges are stored, the fourth difference value is matched with the wind speed range in the defrosting level database, and the reference defrosting level corresponding to the wind speed range including the fourth difference value is determined as the defrosting level of the indoor heat exchanger. For example, if the fourth difference is 1m/s and the reference defrost level corresponding to the wind speed range of 0 to 2m/s is one level in the defrost level database, the defrost level corresponding to the fourth difference is also one level, and so on.
Without deviating from the basic principle of the present application, a person skilled in the art may determine a specific manner of the defrosting level of the air conditioner according to a specific application scenario, as long as the defrosting level can accurately reflect the removal degree of the surface frost layer of the indoor heat exchanger.
Through the control mode, the frost layer formed on the surface of the indoor heat exchanger can be effectively removed, the influence of the frost layer residue on the heat exchange efficiency is avoided, a good defrosting effect is obtained, and a good self-cleaning effect can be obtained.
It should be noted that, after the air conditioner is controlled to enter the defrosting mode, the defrosting level of the air conditioner may not be further considered, but the air conditioner may be controlled to end the self-cleaning mode after the air conditioner is controlled to enter the defrosting mode for a preset period of time.
In one possible embodiment, after the control air conditioner ends the self-cleaning mode of operation, the control air conditioner is operated according to parameters before the control air conditioner operates the self-cleaning mode. That is, if the operation parameters of the air conditioner are adjusted according to the frost formation level or the defrost level during the self-cleaning, the operation parameters of the air conditioner are adjusted to the operation parameters before the self-cleaning mode of operation thereof at this time and then are operated. And the air conditioner is controlled to run again in the self-cleaning mode or is controlled to run continuously according to the current parameters according to the third difference value between the preset air outlet temperature and the third air outlet speed at the air outlet of the indoor unit. Through such control mode to can monitor the concrete state of air conditioner better, can in time carry out self-cleaning to indoor heat exchanger, ensure indoor heat exchanger's heat exchange efficiency. It should be noted that, according to the third difference value between the preset air outlet speed and the third air outlet speed at the air outlet of the indoor fan, the air conditioner is controlled to operate in the self-cleaning mode again, or the air conditioner is controlled to continue to operate according to the current parameter, with reference to the specific control modes from S200 to S206, the control modes of the air conditioner are controlled to operate according to the first difference value between the preset air outlet speed and the first air outlet speed, when the third difference value is larger, the air conditioner is controlled to operate in the self-cleaning mode again, and when the third difference value is smaller, the air conditioner is controlled to continue to operate according to the current parameter, and the specific control logic is not repeated here.
After the air conditioner is controlled to finish the operation self-cleaning mode, the air conditioner can be directly controlled to operate according to the current parameters, and a user can automatically adjust the operation parameters according to self experience.
It should be noted that, although the above description is given by taking the self-cleaning of the indoor heat exchanger as an example, the above process is equally applicable to the self-cleaning of the outdoor heat exchanger, and the adjustment of the heat exchanger does not deviate from the basic principle of the present invention, and all the processes fall within the protection scope of the present invention.
In summary, in the preferred technical scheme of the invention, the air conditioner is controlled to continue to operate according to the current parameters or to operate the self-cleaning mode based on the first air outlet speed and the preset air outlet speed at the air outlet, so that the operation of the air conditioner can be controlled according to the specific condition of the air conditioner at any time, the air conditioner is cleaned in time, the heat exchange efficiency of the heat exchanger is ensured, and the reliability of the self-cleaning function of the air conditioner is further improved. The pollution degree grade is determined based on the first difference value between the preset air outlet speed and the first air outlet speed, the air conditioner is controlled to operate in a self-cleaning mode when the pollution degree grade is larger than the pollution degree threshold value, and the air conditioner is controlled to continue to operate according to the current parameters when the pollution degree grade is smaller than or equal to the pollution degree threshold value, so that the heat exchanger can be cleaned timely, and user experience is improved. When the air conditioner operates in the self-cleaning mode, whether the frosting grade of the air conditioner reaches the preset frosting grade or not is judged based on the second difference value of the preset air outlet speed and the second air outlet speed by determining the preset frosting grade based on the pollution degree grade of the heat exchanger, so that more proper frosting quantity can be formed, dirt on the surface of the heat exchanger can be removed, and energy waste caused by excessive frosting is avoided. After the air conditioner enters the defrosting mode, the preset defrosting grade is determined based on the preset frosting grade, and when the defrosting grade of the air conditioner reaches the preset defrosting grade, the air conditioner is controlled to finish running the self-cleaning mode, so that a better defrosting effect can be obtained, and a better self-cleaning effect is obtained.
Furthermore, the invention also provides an air conditioner comprising a control module configured to be able to perform the self-cleaning method according to any one of the above solutions.
It should be noted that the air conditioner has all the technical effects of the self-cleaning method of the foregoing solution, and the description thereof is omitted herein.
Although the steps are described in the above-described sequential order in the above-described embodiments, it will be appreciated by those skilled in the art that, in order to achieve the effects of the present embodiments, the steps need not be performed in such order, and may be performed simultaneously (in parallel) or in reverse order, and these simple variations are within the scope of the present application.
Thus far, the technical solution of the present invention has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present invention is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present invention, and such modifications and substitutions will fall within the scope of the present invention.

Claims (10)

1. A self-cleaning method of an air conditioner, the self-cleaning method comprising:
when the operation of the air conditioner is stable, acquiring a first air outlet speed at an air outlet;
acquiring a preset air outlet speed at the air outlet;
and controlling the air conditioner to continue to operate according to the current parameters or to operate in a self-cleaning mode based on the first air outlet speed and the preset air outlet speed.
2. The self-cleaning method according to claim 1, wherein the air conditioner includes a heat exchanger, and the step of controlling the air conditioner to continue to operate according to the current parameters or to operate the self-cleaning mode based on the first air outlet speed and the preset air outlet speed further includes:
calculating a first difference value between the preset air outlet speed and the first air outlet speed;
determining a pollution level of the heat exchanger based on the first difference;
and controlling the air conditioner to continue to operate according to the current parameters or operate the self-cleaning mode based on the pollution level.
3. The self-cleaning method according to claim 2, wherein the step of controlling the air conditioner to continue to operate according to the current parameters or to operate in a frosting mode based on the pollution level further comprises:
And if the pollution level is greater than a pollution level threshold, controlling the air conditioner to operate the self-cleaning mode.
4. A self-cleaning method according to claim 3, wherein the self-cleaning mode comprises a frosting mode and a defrosting mode,
the step of controlling the air conditioner to operate in the self-cleaning mode further includes:
controlling the air conditioner to enter the frosting mode;
determining a preset frosting grade based on the pollution degree grade;
acquiring a second air outlet speed at the air outlet;
calculating a second difference value between the preset air outlet speed and the second air outlet speed;
judging whether the frosting grade of the air conditioner reaches the preset frosting grade or not based on the second difference value;
and controlling the air conditioner to continue to operate in the frosting mode or the defrosting mode based on the judging result.
5. The self-cleaning method according to claim 4, wherein the step of controlling the air conditioner to continue to operate in the frosting mode or the defrosting mode based on the judgment result further comprises:
if the frosting grade of the air conditioner does not reach the preset frosting grade, controlling the air conditioner to continue to operate in the frosting mode;
And if the frosting grade of the air conditioner reaches the preset frosting grade, controlling the air conditioner to operate the defrosting mode.
6. The self-cleaning method according to claim 5, further comprising:
after the air conditioner is controlled to enter the defrosting mode, determining a preset defrosting grade based on the preset frosting grade;
and when the defrosting grade of the air conditioner reaches the preset defrosting grade, controlling the air conditioner to finish running the self-cleaning mode.
7. The self-cleaning method according to claim 6, further comprising:
the preset frosting grade is improved along with the improvement of the pollution degree grade; and/or
The preset defrost level increases as the preset defrost level increases.
8. The self-cleaning method according to claim 6, further comprising:
after the air conditioner is controlled to finish running the self-cleaning mode, the air conditioner is controlled to run according to parameters before the air conditioner runs the self-cleaning mode, and the air conditioner is continuously and selectively controlled to run the self-cleaning mode again according to a third difference value between the preset air outlet speed and a third air outlet speed at the air outlet.
9. The self-cleaning method according to claim 2, wherein the step of controlling the air conditioner to continue to operate according to the current parameters or to operate in a frosting mode based on the pollution level further comprises:
and if the pollution level is smaller than or equal to the pollution level threshold, controlling the air conditioner to continue to operate according to the current parameters.
10. An air conditioner characterized in that it comprises a control module configured to be able to perform the self-cleaning method according to any one of the preceding claims 1 to 9.
CN202310290190.4A 2023-03-23 2023-03-23 Air conditioner and self-cleaning method thereof Pending CN116428708A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310290190.4A CN116428708A (en) 2023-03-23 2023-03-23 Air conditioner and self-cleaning method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310290190.4A CN116428708A (en) 2023-03-23 2023-03-23 Air conditioner and self-cleaning method thereof

Publications (1)

Publication Number Publication Date
CN116428708A true CN116428708A (en) 2023-07-14

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
CN (1) CN116428708A (en)

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