CN115614899A - Automatic cleaning control method for air conditioner and filter screen - Google Patents

Automatic cleaning control method for air conditioner and filter screen Download PDF

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Publication number
CN115614899A
CN115614899A CN202211342326.3A CN202211342326A CN115614899A CN 115614899 A CN115614899 A CN 115614899A CN 202211342326 A CN202211342326 A CN 202211342326A CN 115614899 A CN115614899 A CN 115614899A
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CN
China
Prior art keywords
air conditioner
preset
filter screen
cleaning
time
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Pending
Application number
CN202211342326.3A
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Chinese (zh)
Inventor
陈正忠
郭华锋
申亮
黄民柱
李德鹏
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.)
Hisense Guangdong Air Conditioning Co Ltd
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Hisense Guangdong Air Conditioning Co Ltd
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Publication date
Application filed by Hisense Guangdong Air Conditioning Co Ltd filed Critical Hisense Guangdong Air Conditioning Co Ltd
Priority to CN202211342326.3A priority Critical patent/CN115614899A/en
Publication of CN115614899A publication Critical patent/CN115614899A/en
Priority to PCT/CN2023/127960 priority patent/WO2024093950A1/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
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
    • 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
    • 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
    • F24F11/67—Switching between heating and cooling modes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/28—Arrangement or mounting of filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/90—Cleaning of purification 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)
  • 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)
  • Human Computer Interaction (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention discloses an air conditioner and an automatic cleaning control method of a filter screen. The air conditioner is provided with a cleaning device for executing an automatic cleaning function, and the filter screen is automatically cleaned. After an air conditioner is powered on, when the air conditioner is started to operate, detecting the continuous shutdown time length of the air conditioner in the current cleaning period; when the continuous shutdown time is longer than a preset first time threshold, judging whether a preset condition is reached; if so, controlling the air conditioner to stop, and controlling the cleaning device to execute the automatic cleaning function; and the air conditioner enters the next cleaning period after the automatic cleaning function is executed. By adopting the technical means of the invention, the cleaning of the filter screen can be automatically realized according to the running state of the air conditioner, the normal running of the air conditioner is ensured, and good use experience is provided for users.

Description

Automatic cleaning control method for air conditioner and filter screen
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner and an automatic cleaning control method of a filter screen.
Background
With the improvement of the living standard of human beings, air conditioners have entered thousands of households, office places and public places, and are even applied to various vehicles. An air conditioner is provided indoors as a part of an air conditioning system and serves to exchange heat with indoor air, so that the indoor temperature is increased or decreased.
After a period of time of use of a traditional air conditioner, a large amount of dust can be collected on a filter screen, the dust on the filter screen needs to be removed, and an automatic cleaning device is arranged in the prior art to realize automatic cleaning of the filter screen. However, the inventors found that the prior art has at least the following problems: the starting control logic of the automatic cleaning operation of the filter screen in the prior art is simple, and the timely and effective cleaning effect of the filter screen and the requirement of a user for using an air conditioner cannot be well considered.
Disclosure of Invention
The embodiment of the invention aims to provide an air conditioner and an automatic cleaning control method of a filter screen, which can automatically clean the filter screen according to the running state of the air conditioner, ensure the normal running of the air conditioner and provide good use experience for users.
To achieve the above object, an embodiment of the present invention provides an air conditioner, including:
the top side of the shell is provided with an air inlet;
the filter screen is arranged in the shell, covers the air inlet and is used for filtering air entering from the air inlet;
the cleaning device is used for executing an automatic cleaning function and cleaning the filter screen;
a controller to:
after an air conditioner is powered on, when the air conditioner is started to operate, detecting the continuous shutdown time length of the air conditioner in the current cleaning period;
when the continuous shutdown time is longer than a preset first time threshold, judging whether a preset condition is reached;
if yes, controlling the air conditioner to stop, and controlling the cleaning device to execute the automatic cleaning function; and the air conditioner enters the next cleaning period after the execution of the automatic cleaning function is finished.
As an improvement of the above scheme, the preset conditions are specifically: and after the air conditioner is started to operate, detecting that the continuous operation time reaches a preset second time threshold value.
As an improvement of the above scheme, the air conditioner further comprises a compressor and a fan;
the controller is further configured to:
and after the air conditioner is started to operate, controlling the compressor to operate at a preset maximum operation frequency and/or controlling the fan to operate at a preset maximum operation rotating speed.
As an improvement of the above scheme, the preset conditions are specifically:
in a refrigeration mode, the current indoor temperature is lower than a preset first target indoor temperature, and the difference value between the first target indoor temperature and the indoor temperature is larger than a preset temperature difference;
in the heating mode, the current indoor temperature is higher than a preset second target indoor temperature, and the difference value between the indoor temperature and the second target indoor temperature is larger than a preset temperature difference.
As an improvement of the above scheme, the preset conditions are specifically:
in the refrigeration mode, the current indoor temperature is lower than a preset first default indoor temperature, and the continuous operation time of the air conditioner reaches a preset third time threshold;
and under the heating mode, the current indoor temperature is higher than a preset second default indoor temperature, and the continuous operation time of the air conditioner reaches a preset third time threshold.
As an improvement of the above, the controller is further configured to:
after the air conditioner is powered on, detecting the accumulated running time of the air conditioner in the current cleaning period;
when the accumulated running time is longer than a preset fourth time threshold and shorter than or equal to a preset fifth time threshold and the air conditioner is in a shutdown state, controlling the cleaning device to execute the automatic cleaning function; wherein the fifth time threshold is greater than the fourth time threshold.
As an improvement of the above, the controller is further configured to:
and when the accumulated running time is greater than or equal to the fifth time threshold, controlling the air conditioner to stop, and controlling the cleaning device to execute the automatic cleaning function.
As an improvement of the above, the controller is further configured to:
after the air conditioner is powered on, detecting the continuous operation time length of the air conditioner in the current cleaning period;
and when the continuous operation time length is greater than a preset sixth time threshold value, controlling the air conditioner to stop, and controlling the cleaning device to execute the automatic cleaning function.
The embodiment of the invention also provides an automatic cleaning control method of the filter screen, which is applied to an air conditioner, wherein the air conditioner comprises the following steps:
the top side of the shell is provided with an air inlet; the filter screen is arranged in the shell, covers the air inlet and is used for filtering air entering from the air inlet;
the cleaning device is used for executing an automatic cleaning function and cleaning the filter screen;
the method comprises the following steps:
after an air conditioner is powered on, when the air conditioner is started to operate, detecting the continuous shutdown time length of the air conditioner in the current cleaning period;
when the continuous shutdown time is longer than a preset first time threshold, judging whether a preset condition is reached;
if yes, controlling the air conditioner to stop, and controlling the cleaning device to execute the automatic cleaning function; and the air conditioner enters the next cleaning period after the execution of the automatic cleaning function is finished.
As an improvement of the above scheme, the preset conditions are specifically: and after the air conditioner is started to operate, detecting that the continuous operation time length reaches a preset second time threshold value.
Compared with the prior art, the air conditioner and the automatic cleaning control method of the filter screen disclosed by the embodiment of the invention comprise a shell, wherein the top side of the shell is provided with an air inlet; the filter screen is arranged in the shell, covers the air inlet and is used for filtering air entering from the air inlet; the cleaning device is used for executing an automatic cleaning function and cleaning the filter screen; after an air conditioner is powered on, when the air conditioner is started to operate, detecting the continuous shutdown time length of the air conditioner in the current cleaning period; when the continuous shutdown time is longer than a preset first time threshold, judging whether a preset condition is reached; if yes, controlling the air conditioner to stop, and controlling the cleaning device to execute the automatic cleaning function; and the air conditioner enters the next cleaning period after the execution of the automatic cleaning function is finished. By adopting the technical means of the embodiment of the invention, the continuous shutdown time of the air conditioner can be automatically acquired to judge whether the automatic cleaning condition is met or not, the cleaning of the filter screen is automatically realized, the problems that the operation is troublesome because a user manually takes out and cleans the filter screen, the air output is influenced because a large amount of dust is accumulated on the filter screen due to untimely cleaning of the user, the operation performance of the air conditioner is further influenced and the like are solved, the efficiency of cleaning the filter screen is effectively improved, the normal operation of the air conditioner is ensured, and the operation of the user is saved. In the embodiment of the invention, when the air conditioner is continuously started and operated for a period of time and the filter screen is not cleaned, after the air conditioner is restarted by a user, the air conditioner is stopped after the air conditioner is operated until the preset condition is met, namely, the indoor air is cooled or heated, and the requirement of the user is initially met, the cleaning device is started to automatically clean the filter screen, so that the influence on the user is reduced to the minimum, the use experience of the user is prevented from being influenced, and a good use experience is provided for the user.
Drawings
Fig. 1 is a schematic structural view of an air conditioner according to an embodiment of the present invention;
FIG. 2 is a front view of an air conditioner according to an embodiment of the present invention;
FIG. 3 isbase:Sub>A sectional view taken along line A-A of FIG. 2;
FIG. 4 is a flowchart illustrating operations performed by the controller in accordance with the first embodiment of the present invention;
FIG. 5 is a flowchart illustrating operations performed by the controller in a second implementation manner according to an embodiment of the present invention;
fig. 6 is a schematic flowchart of operations performed by the controller in the third embodiment according to the embodiment of the present invention;
fig. 7 is a schematic flowchart of operations performed by the controller in the fourth embodiment according to the embodiment of the present invention;
fig. 8 is a flowchart illustrating operations performed by the controller according to a fifth embodiment of the present invention;
fig. 9 is a schematic flowchart of operations performed by the controller in the sixth implementation manner according to an embodiment of the present invention;
fig. 10 is a flowchart illustrating operations performed by the controller according to a seventh implementation manner of the present invention;
fig. 11 is a flowchart illustrating operations performed by the controller in the eighth implementation manner according to the embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
The air conditioner comprises a split air conditioner and an integrated air conditioner, wherein the split air conditioner comprises an indoor unit and an outdoor unit, and the indoor unit of the split air conditioner is taken as an example, referring to fig. 1 to 2, fig. 1 is a schematic structural diagram of the air conditioner provided by the embodiment of the invention, and fig. 2 is a front view of the air conditioner in the embodiment of the invention; fig. 3 isbase:Sub>A sectional view taken alongbase:Sub>A-base:Sub>A in fig. 2. In the field of air conditioning, a heat exchanger is arranged in an indoor unit, the indoor unit is arranged indoors and heats or cools indoor air through the built-in heat exchanger to achieve the heating or cooling effect, and generally comprises a casing 100, a heat exchanger arranged in the casing 100 and connected with an outdoor unit of an air conditioner and a fan for sucking and pumping the indoor air, wherein when the indoor unit works, the fan rotates to suck the indoor air from an air inlet 110 on the casing 100, so that the indoor air is pumped out from an air outlet on the casing 100 after passing through the heat exchanger to exchange heat with the heat exchanger; the outdoor unit is provided with a compressor and other devices as one of the main devices for completing the refrigeration or heating cycle.
For the integral air conditioner, all air conditioning devices are integrated into one shell, and the integral air conditioner is usually convenient to move freely in a room. The embodiment of the invention can be applied to a split type air conditioner or an integrated type air conditioner.
The embodiment of the invention provides an air conditioner, which comprises a shell 100, wherein the top side of the shell is provided with an air inlet 110; the filter screen 200 is disposed in the cabinet 100 and covers the intake vent 110, for filtering air entering from the intake vent 110. And, the air conditioner further includes a cleaning device 300, and the cleaning device 300 is connected to the filter screen 200, and is configured to perform a preset automatic cleaning function, so as to clean the filter screen 200.
Optionally, the cleaning device 300 includes a rolling brush, a reel, a gear assembly, and a motor, the rolling brush extends in the left-right direction and is rotatably installed in the casing 100, and is disposed adjacent to the reel, the filter screen 200 is wound around the reel, and is wound around the reel to move in a preset position region in the casing, the gear assembly is connected to the reel, the motor is connected to the gear assembly, and the motor is controlled to start and operate to drive the gear assembly to rotate, so that the gear assembly drives the rolling brush and the reel to rotate, and the rolling brush can clean the filter screen wound on the reel continuously.
Of course, the above structure of the cleaning device is merely an example, and in practical applications, other cleaning methods may be provided, and the structure is not limited herein.
The air conditioner further includes a controller for performing operations such as information processing and control. Specifically, referring to fig. 4, it is a schematic flowchart of the operation executed by the controller in the first implementation manner according to the embodiment of the present invention. The controller is configured to perform steps S11 to S13:
s11, after the air conditioner is powered on, when the air conditioner is started to operate, detecting the continuous shutdown time of the air conditioner in the current cleaning period;
s12, when the continuous shutdown time is longer than a preset first time threshold, judging whether a preset condition is met;
s13, if yes, controlling the air conditioner to stop, and controlling the cleaning device to execute the automatic cleaning function; and the air conditioner enters the next cleaning period after the execution of the automatic cleaning function is finished.
It should be noted that, in the operation process, a corresponding start-up condition or a stop condition is preset, and is used to trigger the air conditioner to start up when the start-up condition is reached, enter a corresponding operation mode of cooling, heating or dehumidifying according to the requirement, and stop when the stop condition is reached, and then when the start-up condition is reached again, the air conditioner starts to operate again, so as to circulate. Optionally, the power-on condition is a power-on instruction operated by a user through a remote controller, and the shutdown condition is a shutdown instruction operated by the user through the remote controller.
In the embodiment of the present invention, the time that the cleaning device 300 continuously performs the preset automatic cleaning function twice is taken as a cleaning cycle, after the air conditioner is powered on and operated, the first cleaning cycle is entered, the controller obtains the operation state information of the air conditioner, and when it is determined that a certain automatic cleaning condition is met, the cleaning device 300 is controlled to perform the automatic cleaning function to clean the dust on the filter screen 200. And after the automatic cleaning function is executed, the air conditioner clears the running state information of the current period and enters the next cleaning period. It will be appreciated that the elapsed time for the different sweeping cycles is not necessarily the same.
And in the current cleaning period, the controller counts the running state information of the air conditioner in real time to execute corresponding information processing and control instruction issuing operations. It is understood that the operation state information includes a continuous operation time period t on Duration of continuous shutdown t off Accumulated running time t on_add And accumulated time t of shutdown off_add Of course, the information may also include the operating frequency and the operating speed of the compressor of the air conditioner, or the operating speed of the fan.
For example, after the air conditioner enters the current cleaning cycle, after the air conditioner continuously operates for 8 hours, the air conditioner is turned off for 3 hours under the control of the remote controller of the user and is turned on again for 12 hours, and then the air conditioner continuously operates for a time period t on Refers to the latest continuous operation time period, namely 12 hours, and the continuous shutdown time period t off Means the latest continuous shutdown duration, i.e. 3 hours, the cumulative operating duration t off_add It means that the currently accumulated starting up operation time length, i.e. 8+12=20 hours, in the current sweeping period.
Specifically, in the embodiment of the present invention, the running state information includes a continuous shutdown time period t off And presetting a first time threshold t1 to represent the continuous shutdown time t off The size of (2). After the air conditioner is powered on, in the current cleaning period, the controller detects that the continuous shutdown of the air conditioner exceeds t1 time duration, namely t off If the user controls the air conditioner to start running in the corresponding cooling or heating running mode through the remote controller, the controller continuously detects running state information of the air conditioner and judges whether preset conditions are met, wherein the preset conditions can be that the current continuous running time reaches a certain time condition or that the current indoor temperature reaches a certain temperature condition.
If yes, the air conditioner is judged to meet the preset automatic cleaning condition, the operation of the air conditioner is interrupted firstly, then the cleaning device 300 is controlled to start and operate, the filter screen is cleaned automatically, after the automatic cleaning function is finished, the air conditioner is controlled to start and operate again, the air conditioner returns to the operation state before cleaning, and the air conditioner enters the statistics and control of the next cleaning period. If not, the cleaning device 300 does not act, the current running state of the air conditioner is not changed, and the air conditioner continuously waits until the preset condition is met.
It should be noted that the first time threshold t1 is a preset value, which needs to be set to be long, so as to better represent that the air conditioner is not turned on for a long time and is not performing a cleaning operation, preferably, t1 is greater than 72 hours, alternatively, t1 is set to be one week, that is, 7 × 24 hours =168 hours, and of course, other values may be set according to actual situations, which is not limited herein.
The embodiment of the invention provides an air conditioner, which is provided with a cleaning device for executing an automatic cleaning function and automatically cleaning a filter screen. After an air conditioner is powered on, when the air conditioner is started to operate, detecting the continuous shutdown time length of the air conditioner in the current cleaning period; when the continuous shutdown time is longer than a preset first time threshold, judging whether a preset condition is reached; if so, controlling the air conditioner to stop, and controlling the cleaning device to execute the automatic cleaning function; and the air conditioner enters the next cleaning period after the execution of the automatic cleaning function is finished. By adopting the technical means of the embodiment of the invention, the continuous shutdown time of the air conditioner can be automatically acquired to judge whether the automatic cleaning condition is met or not, the cleaning of the filter screen is automatically realized, the problems that the operation is troublesome because a user manually takes out and cleans the filter screen, the air output is influenced because a large amount of dust is accumulated on the filter screen due to untimely cleaning of the user, the operation performance of the air conditioner is further influenced and the like are solved, the efficiency of cleaning the filter screen is effectively improved, the normal operation of the air conditioner is ensured, and the operation of the user is saved. In addition, when the air conditioner is continuously started and operated for a period of time and the filter screen is not cleaned, after the air conditioner is restarted by a user, the air conditioner is stopped from operating after the air conditioner operates until the preset conditions are met, namely, the indoor air is cooled or heated, and the requirements of the user are met preliminarily, the cleaning device is started to automatically clean the filter screen, so that the influence on the user is reduced to the minimum, the use experience of the user is prevented from being influenced, and a good use experience is provided for the user.
As a preferred implementation manner, the embodiment of the present invention is further implemented on the basis of the above embodiment, and the embodiment of the present invention optimizes the preset condition.
In a first preferred embodiment, the preset conditions are specifically: after the air conditioner is started to operate, the continuous operation time length t of the air conditioner on And reaching a preset second time threshold.
Specifically, referring to fig. 5, it is a schematic flowchart of the operation executed by the controller in the second implementation manner according to the embodiment of the present invention. After the air conditioner is powered on, in the current cleaning period, the controller detects that the continuous shutdown of the air conditioner exceeds t1 time duration, namely t off If the user controls the air conditioner to start running in the corresponding cooling or heating running mode through the remote controller after the time is more than t1, the controller continuously detects the continuous running time t of the air conditioner on Determining whether the continuous operation has reached a second time threshold t2, i.e. t is satisfied on If the current value is more than t2, the preset condition is met, the operation of the air conditioner is forcibly interrupted, and then the cleaning device 300 is controlled to start to operate, so that the filter screen is automatically cleaned.
It should be noted that the second time threshold t2 is a preset value, which may be set to be short so as to implement the filter cleaning operation in time, preferably, t2 is 5 to 60 minutes, optionally, t2 is 15 minutes, and of course, other values may be set according to actual situations, which is not limited herein.
By adopting the technical means of the embodiment of the invention, when the air conditioner is continuously started and operated for a period of time and the filter screen is not cleaned, after the air conditioner is restarted by a user, the air conditioner is cooled or heated for a period of time, after the requirement of the user is initially met, the operation of the air conditioner is forcibly interrupted, the cleaning device is started to automatically clean the filter screen, the influence on the user is reduced to the minimum, and the use experience of the user is prevented from being influenced.
As a preferred embodiment, the air conditioner further comprises a compressor and a fan;
referring to fig. 6, it is a schematic flowchart of operations executed by the controller in the third implementation manner according to an embodiment of the present invention, and on the basis of the foregoing embodiment, the controller is further configured to execute the following steps:
and after the air conditioner is started to operate, controlling the compressor to operate at a preset maximum operation frequency and/or controlling the fan to operate at a preset maximum operation rotating speed.
In the embodiment of the invention, when the continuous shutdown time reaches a certain time t1, after the air conditioner is restarted, in order to quickly meet the refrigeration or heating requirements of users, the controller controls the compressor to operate at the preset maximum operation frequency and/or controls the fan to operate at the preset maximum operation speed, and then judges whether the preset conditions are met.
By adopting the technical means of the embodiment of the invention, the air conditioner can output the maximum refrigerating capacity in the refrigerating operation mode or the maximum heating capacity in the heating operation mode to meet the refrigerating or heating requirements of users as soon as possible, thereby avoiding the subsequent shutdown of the air conditioner and bringing bad experience to the users due to overlarge difference between the indoor temperature and the target temperature set by the users when the cleaning device executes the automatic cleaning function.
In a second preferred embodiment, the preset conditions are specifically: in the cooling mode, the current indoor temperature Th is lower than a preset first target indoor temperature T set_1 And the first target indoor temperature T set_1 The difference value with the indoor temperature Th is larger than a preset temperature difference delta T1; in the heating mode, the current indoor temperature Th is higher than the preset second target indoor temperature T set_2 And the indoor temperature Th and the second target indoor temperature T set_2 Is greater than a preset temperature difference deltat 1.
Specifically, referring to fig. 7, it is a flowchart of the operation executed by the controller in the fourth implementation manner in the embodiment of the present inventionSchematic representation. After the air conditioner is powered on, in the current cleaning period, the controller detects that the continuous shutdown of the air conditioner exceeds t1 duration, namely t off T1, then, if the user controls the air conditioner to start the air conditioner to operate in a corresponding refrigerating or heating operation mode through the remote controller, the controller acquires the current indoor temperature Th through a preset indoor temperature sensor and acquires the target indoor temperature T set by the user set The value may be entered by a user through a human-computer interaction module such as a remote control. If the current air conditioner is in the cooling mode, the target indoor temperature set by the user is correspondingly recorded as a first target indoor temperature T set_1 If the current indoor temperature is detected to be reduced to be lower than the target temperature by a certain temperature difference value, T is satisfied set_1 Th is greater than Delta T1, indicating that the preset condition is met; if the current air conditioner is in the heating mode, the target indoor temperature set by the user is correspondingly recorded as a second target indoor temperature T set_2 If the current indoor temperature is detected to be increased to be higher than the target temperature by a certain temperature difference value, the Th-T is also met set_1 If the difference is more than delta T1, the preset condition is met, the operation of the air conditioner is forcibly interrupted, and then the cleaning device 300 is controlled to start to operate, so that the filter screen is automatically cleaned.
It should be noted that the first preset temperature difference Δ T1 is a preset value, and Δ T1 > 0. Alternatively, Δ T1 is set to 2 ℃, and may be set to other values according to practical situations, and is not limited herein.
Optionally, under the preset condition of the embodiment of the present invention, after the air conditioner is started to operate, the compressor may also be controlled to operate at a preset maximum operating frequency, and/or the fan may be controlled to operate at a preset maximum operating speed, so that the current environment meets the requirement of the preset condition.
By adopting the technical means of the embodiment of the invention, when the air conditioner is continuously started and operated for a period of time and the filter screen is not cleaned, after the air conditioner is restarted by a user until the indoor temperature reaches a certain temperature requirement, the operation of the air conditioner is forcibly interrupted, the cleaning device is started to automatically clean the filter screen, the influence on the refrigerating/heating requirement of the user is reduced to the minimum, and the influence on the use experience of the user is avoided.
In a third preferred embodiment, the preset conditions are specifically: in the cooling mode, the current indoor temperature Th is lower than a preset first default indoor temperature T df_1 And the continuous operation time period t of the air conditioner on Reaching a preset third time threshold t3; in the heating mode, the current indoor temperature Th is higher than a preset second default indoor temperature T df_2 And a continuous operation time period t of the air conditioner on Reaching a preset third time threshold t3.
Specifically, referring to fig. 8, a flowchart of the operation performed by the controller in the fifth implementation manner in the embodiment of the present invention is shown. After the air conditioner is powered on, in the current cleaning period, the controller detects that the continuous shutdown of the air conditioner exceeds t1 duration, namely t off If the user controls the air conditioner to start running in the corresponding cooling or heating running mode through the remote controller after the time is more than t1, the controller continuously detects the continuous running time t of the air conditioner on And acquiring the current indoor temperature Th and acquiring the preset default indoor temperature T df Wherein, if the current air conditioner is in the cooling mode, the default indoor temperature T df Corresponding to the first default indoor temperature T df_1 If it is detected that the current indoor temperature has decreased to below the default indoor temperature, th < T df_1 And the air conditioner is also continuously operated for a period of time t3, namely t on If t3 is greater, the preset condition is met; if the air conditioner is in heating mode, the default indoor temperature T df Corresponding to a second default indoor temperature T df_2 If it is detected that the current indoor temperature has risen above the default indoor temperature, that is, th > T df_2 And t is on If the temperature is higher than t3, the preset condition is met, the operation of the air conditioner is forcibly interrupted, and then the cleaning device 300 is controlled to start to operate, so that the filter screen is automatically cleaned.
It should be noted that the first default indoor temperature T df_1 And a second default indoor temperature T df_2 Ambient temperature values which are comfortable for the user, for exampleSuch as setting T df_1 ＝T df_2 =24 ℃, of course, other values may be set according to actual conditions, and are not limited herein.
Optionally, under the preset condition of the embodiment of the present invention, after the air conditioner is started to operate, the compressor may also be controlled to operate at a preset maximum operating frequency, and/or the fan may be controlled to operate at a preset maximum operating speed, so that the current environment meets the requirement of the preset condition.
By adopting the technical means of the embodiment of the invention, when the air conditioner is continuously started and operated for a period of time and the filter screen is not cleaned, after the air conditioner is restarted by a user until the air conditioner is operated for a period of time and the indoor temperature reaches the default temperature requirement, the operation of the air conditioner is forcibly interrupted, the cleaning device is started to automatically clean the filter screen, the influence on the refrigerating/heating requirement of the user is reduced to the minimum, and the use experience of the user is prevented from being influenced.
As a preferred implementation manner, referring to fig. 9, which is a schematic flow chart of work performed by the controller in a sixth implementation manner according to an embodiment of the present invention, where the embodiment of the present invention is further implemented on the basis of any of the foregoing embodiments, and the operation state information further includes an accumulated operation time period t on_add (ii) a The controller is further configured to perform steps S14 and S15:
s14, after the air conditioner is powered on, detecting the accumulated running time of the air conditioner in the current cleaning period;
s15, when the accumulated running time is longer than a preset fourth time threshold and is less than or equal to a preset fifth time threshold and the air conditioner is in a stop state, controlling the cleaning device to execute the automatic cleaning function; wherein the fifth time threshold is greater than the fourth time threshold.
Specifically, in the embodiment of the present invention, a fourth time threshold t4 and a fifth time threshold t5 are preset to characterize the accumulated operation time t on_add Of (2), wherein, t4<t5. After the air conditioner is powered on, in the current cleaning period, the controller detects that the time of the accumulated shutdown of the air conditioner exceeds t4 time,the duration of t5 has not been exceeded, i.e. t4 < t on_add And after t5, further determining whether the current air conditioner is in a shutdown state, if the current air conditioner is in the shutdown state, judging that a preset automatic cleaning condition is met, controlling the cleaning device 300 to start and operate, automatically cleaning the filter screen, after the automatic cleaning function is finished, controlling the air conditioner to start and operate again, returning to the operation state before cleaning, and enabling the air conditioner to enter the statistics and control of the next cleaning period.
The fourth time threshold t4 and the fifth time threshold t5 are preset values, and preferably, the values of t4 and t5 are 12 to 72 hours, but may be set to other values according to actual conditions, and are not limited herein.
For example, the time length t4 is set to be 24 hours, the time length t5 is set to be 32 hours, the user remote controller controls the air conditioner to start to operate in the current cleaning period, the air conditioner continuously operates for 8 hours, then stops operating for n hours, then starts to operate again and continuously operates for 12 hours, then stops operating for n hours, and then starts to operate again and continuously operates for 6 hours and then shuts down. At this time, the controller counts the accumulated running time t on_add =8 h +12 h +6 h =26 h, satisfying t4 < t on_add T4 is not more than t4, and the air conditioner is currently in a shutdown state, the preset automatic cleaning condition is judged to be met, the cleaning device 300 is controlled to start to operate, and the filter screen is automatically cleaned. Wherein n is greater than 0.
By adopting the technical means of the embodiment of the invention, when the air conditioner is operated for a period of time in an accumulated way and the filter screen is not cleaned, the cleaning device is started to automatically clean the filter screen after the air conditioner is shut down, so that the problems that the air output of the air conditioner is influenced due to a large amount of dust accumulated on the filter screen because a user does not clean the filter screen in time, the operation performance of the air conditioner is influenced and the like can be solved, the normal use of the user is not influenced, and the use experience of the user is improved.
As a preferred embodiment, referring to fig. 10, which is a schematic flowchart of a work executed by the controller in the embodiment of the present invention in a seventh embodiment, where the embodiment of the present invention is further implemented on the basis of the previous embodiment, and the controller is further configured to execute step S16:
and S16, when the accumulated running time is greater than or equal to the fifth time threshold, controlling the air conditioner to stop, and controlling the cleaning device to execute the automatic cleaning function.
In the current cleaning period, the controller detects that the time of the accumulated shutdown of the air conditioner exceeds t5 duration, t on_add After t5 or more, whether the current air conditioner is in a shutdown state or not is judged to meet the preset automatic cleaning condition, the air conditioner is controlled to be shut down, the cleaning device 300 is controlled to start and operate, the filter screen is automatically cleaned, after the execution of the automatic cleaning function is finished, the air conditioner is controlled to start and operate again, the air conditioner returns to the operation state before cleaning, and the air conditioner enters the statistics and control of the next cleaning period.
By way of example, t5 is 32 hours. In the current cleaning period, the user remote controller controls the air conditioner to start and operate, the air conditioner continuously operates for 8 hours, stops operating for n hours, then starts and continuously operates for 12 hours, stops operating for n hours, and then starts and continuously operates for more than 12 hours. At this time, the controller counts the accumulated running time t on_add =8 h +12 h =32 h, satisfying t on_add And if the temperature is more than or equal to t5, judging that the preset automatic cleaning condition is met, forcibly interrupting the operation of the air conditioner, and controlling the cleaning device 300 to start to operate to automatically clean the filter screen. And after the execution of the automatic cleaning function is finished, the air conditioner is controlled to start to operate again, and the air conditioner returns to the operation state before cleaning.
By adopting the technical means of the embodiment of the invention, when the air conditioner is operated for a longer period of time in an accumulated way and the filter screen is not cleaned, the operation of the air conditioner is forcibly interrupted, the cleaning device is started to automatically clean the filter screen, the problems that the filter screen accumulates a large amount of dust to influence the air output of the air conditioner and further influence the operation performance of the air conditioner and the like due to untimely cleaning of a user are effectively avoided, and the normal operation of the air conditioner is ensured.
As a preferred implementation, refer to FIG. 11, which is a controller of the embodiment of the present inventionThe execution work is a flow diagram in an eighth implementation manner, and the embodiment of the present invention is further implemented on the basis of any of the above embodiments, where the operation state information includes a continuous operation time period t on The controller is further configured to perform steps S17 and S18:
s17, after the air conditioner is powered on, detecting the continuous operation time length of the air conditioner in the current cleaning period;
and S18, when the continuous operation time length is greater than a preset sixth time threshold value, controlling the air conditioner to stop, and controlling the cleaning device to execute the automatic cleaning function.
Specifically, in the embodiment of the present invention, a sixth time threshold t6 is preset to characterize the continuous operation time period t on The size of (2). After the air conditioner is powered on, in the current cleaning period, the time of the controller for detecting the continuous start of the air conditioner exceeds t6 time duration, namely t on And after t6, judging that the preset automatic cleaning condition is met, controlling the cleaning device 300 to start and operate, automatically cleaning the filter screen, after the automatic cleaning function is finished, controlling the air conditioner to start and operate again, returning to the operation state before cleaning, and enabling the air conditioner to enter the statistics and control of the next cleaning period.
It should be noted that the sixth time threshold t6 is a preset value, and the sixth time threshold t6 is preferably larger than the judgment values for the continuous boot time set in the above embodiments, that is, the second time threshold t2 and the third time threshold t3, i.e., t6 > t2, and t6 > t3. More preferably, t6 has a value of 12 to 72 hours, but may be set to other values according to actual situations, and is not limited herein.
By way of example, t3 is set to 24 hours. In the current cleaning period, the user remote controller controls the air conditioner to start and operate, the air conditioner continuously operates for 24 hours, and the controller counts the current continuous operation time t on If the time is up to t6 after 24 hours, the air conditioner is judged to meet the preset automatic cleaning condition, the operation of the air conditioner is forcibly interrupted, then the cleaning device 300 is controlled to start to operate, the filter screen is automatically cleaned, and after the automatic cleaning function is finished,and controlling the air conditioner to start to operate again, and returning to the operation state before cleaning. And then, assuming that the air conditioner continuously operates for 24 hours after being started, the operation of the air conditioner is interrupted again, the cleaning device 300 is controlled to start and operate, the filter screen is automatically cleaned, and after the automatic cleaning function is finished, the air conditioner is controlled to start and operate again, and the air conditioner returns to the operation state before cleaning.
By adopting the technical means of the embodiment of the invention, when the air conditioner is continuously started and operated for a period of time and the filter screen is not cleaned, the operation of the air conditioner is forcibly interrupted, the cleaning device is started to automatically clean the filter screen, the problems that the air output of the air conditioner is influenced and the operation performance of the air conditioner is influenced due to the fact that a large amount of dust is accumulated on the filter screen because a user does not clean the filter screen in time are effectively avoided, and the normal operation of the air conditioner is ensured.
As a preferred implementation, in addition to any of the above embodiments, before the controlling the cleaning device to perform the automatic cleaning function, the controller is configured to:
judging whether a preset precondition for allowing the automatic cleaning function to be executed is met;
if yes, executing the following steps: controlling the air conditioner to stop, and executing the automatic cleaning function by the cleaning device;
if not, the current running state of the air conditioner is maintained unchanged.
When the judgment meets the preset automatic cleaning condition, in order to avoid the influence of forcibly executing the shutdown of the air conditioner on the work or rest of a user or the normal operation of the air conditioner, the precondition for allowing the automatic cleaning function to be executed is preset, when the judgment is made according to the embodiment that the accumulated operation time or the continuous operation time in the current cleaning period of the air conditioner is met and the preset automatic cleaning condition is met, whether the preset precondition for allowing the automatic cleaning function to be executed is met is judged, if so, the air conditioner is controlled to be shut down, the cleaning device 300 is controlled to be started to operate, and the filter screen is automatically cleaned. If not, the current running state of the air conditioner is maintained unchanged until the preset precondition that the execution of the automatic cleaning function is allowed is judged to be met, if the air conditioner is in the starting state, the air conditioner is controlled to stop, and then the cleaning device 300 is controlled to start running to automatically clean the filter screen.
By adopting the technical means of the embodiment of the invention, the precondition of allowing the automatic cleaning function to be executed is set according to the use requirement of the user or the running state of the air conditioner, the automatic cleaning operation of the filter screen when the user is in a rest state or an important working state is effectively avoided, the cleaning noise influences the rest of the user and causes bad experience to the user, and the adverse effect on the service life of the air conditioner caused by forced shutdown for automatic cleaning operation when the air conditioner is in a special running mode can also be avoided.
Preferably, the judging whether the preset precondition that the automatic cleaning function is allowed to be executed is satisfied includes:
judging whether a shutdown control instruction input by a user is received; the shutdown control instruction is used for controlling the air conditioner to shut down;
and/or judging whether the current time is not in a preset time period set by a user;
and/or judging whether the current indoor light intensity is greater than a preset light intensity threshold value.
For example, in an embodiment, when it is determined that a preset automatic cleaning condition is met, if the air conditioner is in a power-on running state and the controller does not receive a power-off control instruction input by a user through a remote controller or the like, it is determined that the precondition for allowing the automatic cleaning function to be executed is not met, and a current running state of the air conditioner is maintained unchanged; and when the controller receives a shutdown control instruction input by a user, judging that the precondition for allowing the automatic cleaning function to be executed is met, controlling the air conditioner to stop, controlling the cleaning device 300 to start to operate, and automatically cleaning the filter screen.
In another embodiment, the user setting time period is defined as a user rest time period, and the user rest time period is 23. Furthermore, when the preset self-cleaning condition is judged to be met, if the current time is judged to be within the time period of 23-00.
In another embodiment, the air conditioner is provided with a light intensity detection device for detecting the current indoor light intensity and sending the current indoor light intensity to the controller. Presetting a light intensity threshold, if the current indoor light intensity is greater than the light intensity threshold, indicating that the current indoor light is stronger and possibly in a daytime or a light-on state, judging that the user is not at rest, and if the air conditioner is in a starting state, controlling the air conditioner to stop and controlling the cleaning device to execute an automatic cleaning function; if the current indoor light intensity is smaller than or equal to the light intensity threshold value, the current indoor light is weak and may be in a night state, a light-off state or a curtain-up state, it is determined that the user is resting, the air conditioner maintains the original state, and the cleaning device is not controlled to perform the operation of the automatic cleaning function.
The embodiment of the invention also provides an automatic cleaning control method of the filter screen, which is applied to an air conditioner, wherein the air conditioner comprises the following steps:
the top side of the shell is provided with an air inlet; the filter screen is arranged in the shell, covers the air inlet and is used for filtering air entering from the air inlet;
the cleaning device is used for executing an automatic cleaning function and cleaning the filter screen;
the automatic cleaning control method of the filter screen specifically comprises the following steps of S21 to S24:
s21, after the air conditioner is powered on, when the air conditioner is started to operate, detecting the continuous shutdown time of the air conditioner in the current cleaning period;
s22, when the continuous shutdown time is longer than a preset first time threshold, judging whether a preset condition is met;
s23, if yes, controlling the air conditioner to stop, and controlling the cleaning device to execute the automatic cleaning function; and the air conditioner enters the next cleaning period after the execution of the automatic cleaning function is finished.
By adopting the technical means of the embodiment of the invention, the continuous shutdown time of the air conditioner can be automatically acquired to judge whether the automatic cleaning condition is met or not, the cleaning of the filter screen is automatically realized, the problems that the operation is troublesome because a user manually takes out and cleans the filter screen, the air output is influenced because a large amount of dust is accumulated on the filter screen due to untimely cleaning of the user, the operation performance of the air conditioner is further influenced and the like are solved, the efficiency of cleaning the filter screen is effectively improved, the normal operation of the air conditioner is ensured, and the operation of the user is saved. In addition, when the air conditioner is continuously started and operated for a period of time and the filter screen is not cleaned, after the air conditioner is restarted by a user, the air conditioner is forcibly stopped from operating after the air conditioner is operated for a while until the preset conditions are met, namely, the indoor air is cooled or heated, and the requirements of the user are met initially, the cleaning device is started to automatically clean the filter screen, so that the influence on the user is reduced to the minimum, the use experience of the user is prevented from being influenced, and a good use experience is provided for the user.
It should be noted that, the automatic cleaning control method for a filter screen provided in the embodiment of the present invention is the same as all the process steps executed by the controller of an air conditioner in the above embodiment, and the working principles and beneficial effects of the two are in one-to-one correspondence, so that the detailed description is omitted.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above may be implemented by a computer program, which may be stored in a computer readable storage medium and executed by a computer to implement the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.

Claims (10)

1. An air conditioner, comprising:
the top side of the shell is provided with an air inlet;
the filter screen is arranged in the shell, covers the air inlet and is used for filtering air entering from the air inlet;
the cleaning device is used for executing an automatic cleaning function and cleaning the filter screen;
a controller to:
after an air conditioner is powered on, when the air conditioner is started to operate, detecting the continuous shutdown time length of the air conditioner in the current cleaning period;
when the continuous shutdown time is longer than a preset first time threshold, judging whether a preset condition is reached;
if so, controlling the air conditioner to stop, and controlling the cleaning device to execute the automatic cleaning function; and the air conditioner enters the next cleaning period after the automatic cleaning function is executed.
2. The air conditioner according to claim 1, wherein the preset condition is specifically: and after the air conditioner is started to operate, detecting that the continuous operation time reaches a preset second time threshold value.
3. The air conditioner of claim 2, further comprising a compressor and a fan;
the controller is further configured to:
and after the air conditioner is started to operate, controlling the compressor to operate at a preset maximum operation frequency and/or controlling the fan to operate at a preset maximum operation rotating speed.
4. The air conditioner according to claim 1, wherein the preset conditions are specifically:
in the refrigeration mode, the current indoor temperature is lower than a preset first target indoor temperature, and the difference value between the first target indoor temperature and the indoor temperature is larger than a preset temperature difference;
in the heating mode, the current indoor temperature is higher than a preset second target indoor temperature, and the difference value between the indoor temperature and the second target indoor temperature is larger than a preset temperature difference.
5. The air conditioner according to claim 1, wherein the preset condition is specifically:
in the refrigeration mode, the current indoor temperature is lower than a preset first default indoor temperature, and the continuous operation time of the air conditioner reaches a preset third time threshold;
and under the heating mode, the current indoor temperature is higher than a preset second default indoor temperature, and the continuous operation time of the air conditioner reaches a preset third time threshold.
6. The air conditioner of claim 1, wherein the controller is further configured to:
after the air conditioner is powered on, detecting the accumulated running time of the air conditioner in the current cleaning period;
when the accumulated running time is longer than a preset fourth time threshold and is less than or equal to a preset fifth time threshold and the air conditioner is in a shutdown state, controlling the cleaning device to execute the automatic cleaning function; wherein the fifth time threshold is greater than the fourth time threshold.
7. The air conditioner of claim 6, wherein the controller is further configured to:
and when the accumulated running time is greater than or equal to the fifth time threshold, controlling the air conditioner to stop, and controlling the cleaning device to execute the automatic cleaning function.
8. The air conditioner of claim 1, wherein the controller is further configured to:
after the air conditioner is powered on, detecting the continuous operation time length of the air conditioner in the current cleaning period;
and when the continuous operation time length is greater than a preset sixth time threshold value, controlling the air conditioner to stop, and controlling the cleaning device to execute the automatic cleaning function.
9. The automatic cleaning control method of the filter screen is characterized by being applied to an air conditioner, and the air conditioner comprises the following steps:
the top side of the shell is provided with an air inlet; the filter screen is arranged in the shell, covers the air inlet and is used for filtering air entering from the air inlet;
the cleaning device is used for executing an automatic cleaning function and cleaning the filter screen;
the method comprises the following steps:
after an air conditioner is powered on, when the air conditioner is started to operate, detecting the continuous shutdown time length of the air conditioner in the current cleaning period;
when the continuous shutdown time is longer than a preset first time threshold, judging whether a preset condition is reached;
if yes, controlling the air conditioner to stop, and controlling the cleaning device to execute the automatic cleaning function; and the air conditioner enters the next cleaning period after the execution of the automatic cleaning function is finished.
10. The method for controlling automatic cleaning of a filter screen according to claim 9, wherein the preset conditions are specifically: and after the air conditioner is started to operate, detecting that the continuous operation time length reaches a preset second time threshold value.
CN202211342326.3A 2022-10-31 2022-10-31 Automatic cleaning control method for air conditioner and filter screen Pending CN115614899A (en)

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CN202211342326.3A CN115614899A (en) 2022-10-31 2022-10-31 Automatic cleaning control method for air conditioner and filter screen
PCT/CN2023/127960 WO2024093950A1 (en) 2022-10-31 2023-10-30 Air conditioner and control method therefor

Applications Claiming Priority (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024093950A1 (en) * 2022-10-31 2024-05-10 海信（广东）空调有限公司 Air conditioner and control method therefor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024093950A1 (en) * 2022-10-31 2024-05-10 海信（广东）空调有限公司 Air conditioner and control method therefor

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