CN114216231A - Control method of air conditioner and air conditioner - Google Patents

Control method of air conditioner and air conditioner Download PDF

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Publication number
CN114216231A
CN114216231A CN202111480583.9A CN202111480583A CN114216231A CN 114216231 A CN114216231 A CN 114216231A CN 202111480583 A CN202111480583 A CN 202111480583A CN 114216231 A CN114216231 A CN 114216231A
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China
Prior art keywords
air conditioner
temperature
cleaning mode
outdoor
outer tube
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Granted
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CN202111480583.9A
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Chinese (zh)
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CN114216231B (en
Inventor
刘慧�
陈圣文
周文伟
赵军猛
潘正伟
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Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
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Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
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Priority to CN202111480583.9A priority Critical patent/CN114216231B/en
Publication of CN114216231A publication Critical patent/CN114216231A/en
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Publication of CN114216231B publication Critical patent/CN114216231B/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/50Control or safety arrangements characterised by user interfaces or communication
    • F24F11/61Control or safety arrangements characterised by user interfaces or communication using timers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/30Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32Responding to malfunctions or emergencies
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/50Control or safety arrangements characterised by user interfaces or communication
    • F24F11/52Indication arrangements, e.g. displays
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63Electronic processing
    • F24F11/64Electronic processing using pre-stored data
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63Electronic processing
    • F24F11/65Electronic processing for selecting an operating mode
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/70Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74Control 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
    • F24F11/77Control 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/70Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/84Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/10Temperature
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/10Temperature
    • F24F2110/12Temperature of the outside air
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70Efficient 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)
  • Fluid Mechanics (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention belongs to the field of air conditioners, and particularly relates to a control method of an air conditioner, wherein the air conditioner comprises a cleaning mode for cleaning an outdoor heat exchanger, and the control method comprises the following steps: judging whether to enter the cleaning mode according to the outdoor environment temperature and the outer tube temperature when the air conditioner operates in a refrigerating mode; judging whether to enter the cleaning mode or not according to the running time of the outdoor unit when the air conditioner is in heating running; and when the air conditioner enters the cleaning mode, adjusting the running speed of the outdoor fan and the opening of the throttle valve. The control method of the air conditioner and the air conditioner can realize the automatic cleaning of the outdoor heat exchanger through simple control logic on the basis of not additionally adding other cleaning devices.

Description

Control method of air conditioner and air conditioner
Technical Field
The invention belongs to the field of air conditioners, and particularly relates to a control method of an air conditioner and the air conditioner.
Background
Because the outdoor unit of the air conditioner is exposed outside, dust and other impurities in the outdoor environment can be accumulated on the outdoor heat exchanger, so that the heat exchange efficiency of the outdoor heat exchanger is reduced, and the heating and refrigerating performance of the air conditioner can be influenced due to low heat exchange efficiency. Therefore, it is required to clean the outdoor heat exchanger to improve heat exchange efficiency. In the prior art, a cleaning device for cleaning the outdoor heat exchanger is additionally arranged in the outdoor unit of the air conditioner, but the cost of the air conditioner is undoubtedly increased, so that a method for cleaning the outdoor heat exchanger without increasing other additional production cost is sought.
The present invention has been made in view of this situation.
Disclosure of Invention
In order to solve the technical problem, the invention provides a control method of an air conditioner, the air conditioner comprises a cleaning mode for cleaning an outdoor heat exchanger, and the control method comprises the following steps
Judging whether to enter the cleaning mode according to the outdoor environment temperature and the outer tube temperature when the air conditioner operates in a refrigerating mode; judging whether to enter the cleaning mode or not according to the running time of the outdoor unit when the air conditioner is in heating running;
and when the air conditioner enters the cleaning mode, adjusting the running speed of the outdoor fan and the opening of the throttle valve.
Further optionally, when the air conditioner is operated in a cooling mode, determining whether to enter the cleaning mode according to the outdoor environment temperature and the outer tube temperature, including
When the air conditioner operates in a refrigerating mode, the initial outdoor environment temperature T is obtainedOuter ring 0
When the initial outdoor ambient temperature TOuter ring 0When the temperature is less than or equal to the first temperature value, the outdoor environment temperature T of the air conditioner when the air conditioner is started to operate to T1 is obtainedOuter ring 1Outer tube temperature TOuter tube 1
Continuously monitoring the temperature T of the outer pipe within a time period T2 after the air conditioner operates to T1Outer tube
According to the initial outdoor ambient temperature T of the air conditionerOuter ring 0And the outdoor environment temperature T of the air conditioner when the air conditioner is started to operate to T1Outer ring 1Outer tube temperature TOuter tube 1And the temperature T of the outer pipe of the air conditioner from T1 to T2Outer tubeTo determine whether the cleaning mode is entered.
Further optionally, the method further comprises determining an initial outdoor ambient temperature T of the air conditionerOuter ring 0And the outdoor environment temperature T of the air conditioner when the air conditioner is started to operate to T1Outer ring 1Outer tube temperature TOuter tube 1And the temperature T of the outer pipe of the air conditioner from T1 to T2Outer tubeTo determine whether to enter the cleaning mode, including
Entering the cleaning mode when the following three temperature conditions are simultaneously satisfied:
P1、Touter ring 1≤TOuter ring 0+ a second temperature value;
p2, when the air conditioner is started to operate to T1 moment, TOuter tube 1≥TOuter ring 1+ third temperature value
P3, and the temperature T of the outer pipe within the time period T2 after the air conditioner operates to the time T1Outer tubeSatisfy, TOuter tubeThe temperature value is more than or equal to the fourth temperature value;
when any one of the above three conditions is not satisfied, the cleaning mode is not entered.
Further optionally, when the air conditioner performs heating operation, determining whether to enter the cleaning mode according to an operation duration of an outdoor unit, including
When the air conditioner is in heating operation, the air conditioner records the operation time length of the outdoor unit;
and when the accumulated running time T1 of the outdoor unit is longer than or equal to a third set time, judging to enter the cleaning mode.
Further optionally, after the air conditioner enters the cleaning mode, adjusting the running speed of the outdoor fan and the opening of the throttle valve, including
Sending prompt information to a user after the air conditioner enters the cleaning mode;
and if a cleaning mode instruction sent by a user is received, adjusting the running speed of the outdoor fan and the opening of the throttle valve.
Further optionally, the adjusting the operation speed of the outdoor fan and the opening of the throttle valve includes controlling the air conditioner to perform heating operation after the air conditioner enters the cleaning mode when the air conditioner performs cooling operation;
and controlling the outdoor fan to operate at the lowest rotating speed and increasing the opening degree of the throttle valve.
Further optionally, adjusting the running speed of the outdoor fan and the opening of the throttle valve further comprises
When the air conditioner is in heating operation, the air conditioner keeps the current heating mode to operate after entering the cleaning mode;
and controlling the outdoor fan to operate at the lowest rotating speed and increasing the opening degree of the throttle valve.
Further optionally, the cleaning mode is exited when a duration of entering the cleaning mode reaches a fourth set duration.
The present invention also provides a control apparatus of an air conditioner, comprising one or more processors and a non-transitory computer-readable storage medium storing program instructions, the one or more processors being configured to implement the method of any one of the above when the one or more processors execute the program instructions.
The invention also provides an air conditioner which adopts the control method or the control device.
After adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects:
the invention provides the control logic capable of automatically detecting filth blockage of the outdoor heat exchanger of the air conditioner and cleaning the outdoor heat exchanger, and the control method can ensure that the outdoor heat exchanger always works in a clean state, ensure that the heat exchanger always keeps high-efficiency heat exchange efficiency and ensure the refrigerating and heating effects of the air conditioner.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1: is a control logic diagram of an embodiment of the present invention;
FIG. 2: is a control logic diagram of the embodiment of the invention during the refrigeration operation;
FIG. 3: a control logic diagram during heating operation according to the embodiment of the invention;
FIG. 4: is a control logic diagram of the cleaning mode of the embodiment of the invention.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In the description of the present invention, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "contacting," and "communicating" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Aiming at the problem that cleaning cost is increased due to the fact that a special cleaning device needs to be additionally arranged for cleaning an outdoor heat exchanger in an existing air conditioning room, the control method for automatically cleaning the outdoor heat exchanger through simple control logic on the basis that other devices are not newly added is provided in the embodiment, the control logic only needs to be updated, other extra production cost does not need to be increased, and the overall production efficiency of the outdoor unit is not affected.
The air conditioner of the present embodiment includes a cleaning mode for cleaning the outdoor heat exchanger, and the control method of the air conditioner, as shown in the control logic diagram of fig. 1, includes steps S1-S2, wherein:
s1, judging whether to enter the cleaning mode according to the outdoor environment temperature and the outer tube temperature when the air conditioner operates in a refrigerating mode; judging whether to enter the cleaning mode or not according to the running time of the outdoor unit when the air conditioner is in heating running;
and S2, when the air conditioner enters the cleaning mode, adjusting the running speed of the outdoor fan and the opening of the throttle valve.
In this embodiment, whether the air conditioner enters a cleaning mode for cleaning the outdoor heat exchanger or not is judged under the refrigeration and heating operations of the air conditioner, the outdoor environment temperature and the outer pipe temperature are used for judging under the refrigeration operation, and under the heating operation, because the temperature of the outdoor unit is integrally low, whether the outdoor heat exchanger needs to be cleaned or not is judged according to the judgment logic of the refrigeration operation and is difficult to realize, so that the judgment is carried out by recording the operation duration of the outdoor unit. When the outdoor heat exchanger enters a cleaning mode, the surface of the outdoor heat exchanger is ensured to be easy to freeze by adjusting the running speed of the outdoor fan and the opening of the throttle valve, and when the ice on the surface of the outdoor heat exchanger is melted, dirt on the surface of the outdoor heat exchanger is washed away, so that the purpose of cleaning the outdoor heat exchanger is achieved.
Further optionally, the step S1 includes S11 to S14 when the air conditioner operates in a cooling mode, where:
s11, when the air conditioner operates in a refrigerating mode, the initial outdoor environment temperature T is obtainedOuter ring 0
S12, when the outdoor environment temperature T is startedOuter ring 0When the temperature is less than or equal to the first temperature value, the outdoor environment temperature T of the air conditioner when the air conditioner is started to operate to T1 is obtainedOuter ring 1Outer tube temperature TOuter tube 1
S13, continuously monitoring the temperature T of the outer pipe within the time period T2 after the air conditioner operates to the time T1Outer tube
S14, according to the initial outdoor environment temperature T of the air conditionerOuter ring 0And the outdoor environment temperature T of the air conditioner when the air conditioner is started to operate to T1Outer ring 1Outer tube temperature TOuter tube 1And the temperature T of the outer pipe of the air conditioner from T1 to T2Outer tubeTo determine whether the cleaning mode is entered.
As shown in the control logic diagram of fig. 2, when the air conditioner operates in a cooling mode, the outdoor unit main control panel first records the initial temperature T of the outdoor environment when the air conditioner is startedOuter ring 0When T isOuter ring 0When the temperature is less than or equal to the first temperature value, the outdoor heat exchanger needs to be cleaned. Obtaining an initial temperature TOuter ring 0The method can be obtained at the moment when the air conditioner starts to perform refrigeration operation, and can also be obtained after the air conditioner operates for a period of time. When judging TOuter ring 0After the temperature is less than or equal to the first temperature value, the outdoor environment temperature T of the air conditioner when the air conditioner is started to operate to T1 is obtainedOuter ring 1Outer tube temperature TOuter tube 1And continuously monitoring the temperature T of the outer pipe within a time period T2 after the air conditioner is operated to T1Outer tubeThe air conditioner can continuously obtain the temperature T of the outer pipe within the time period T2Outer tubeThe temperature T of the outer tube can be obtained once every set timeOuter tubeFor example, the outer tube temperature T is obtained every 5sOuter tubeAnd continuously detecting the temperature T of the outer tube for a period of T2Outer tubeWhether or not the fourth set temperature value is reached. When the outdoor ambient temperature T is obtainedOuter ring 1Outer tube temperature TOuter tube 1And TOuter tubeAfter that, the air conditioner is started to work,the outdoor unit main control board can automatically judge the following conditions, namely, when the following three temperature conditions are simultaneously met, the outdoor unit main control board enters a cleaning mode:
P1、Touter ring 1≤TOuter ring 0+ a second temperature value;
p2, when the air conditioner is started to operate to T1 moment, TOuter tube 1≥TOuter ring 1+ third temperature value
P3, and the temperature T of the outer pipe within the time period T2 after the air conditioner operates to the time T1Outer tubeSatisfy, TOuter tubeThe temperature value is more than or equal to the fourth temperature value;
when any one of the above three conditions is not satisfied, the cleaning mode is not entered.
In a specific embodiment, the time from power on to t1 is 20min, the time duration of t2 is 30min, and the three determination conditions are as follows:
P1、Touter ring 1≤TOuter ring 0+2℃;
P2、TOuter tube 1≥TOuter ring 1+15℃;
P3, after starting up and running for 30min, detecting T continuously for 20minOuter tube≥52℃。
If the judgment result synchronously meets the three conditions, the situation that the outdoor heat exchanger is dirty and blocked is described, an outdoor machine can transmit a dirty and blocked signal to an indoor machine, the air conditioner is controlled to automatically enter a cleaning mode, or a reminding signal of the dirty and blocked outdoor heat exchanger can appear on a display panel of the indoor machine, and the dirty and blocked signal of the outdoor heat exchanger can be continuously lightened until a user selects to enter the cleaning mode for cleaning the outdoor heat exchanger. If the judgment result does not satisfy the three conditions, or the detected TOuter ring 0If the temperature value is larger than the first temperature value, the outdoor heat exchanger does not need to be cleaned, and the current state can be maintained. This is because the outer ring temperature TOuter ring 0When the temperature is higher than the first temperature value, the outdoor environment temperature is higher, the outdoor unit is difficult to reach the condition of executing frosting, and the first temperature value is optionally less than or equal to 35 ℃.
Further optionally, when the air conditioner is operated for heating, the step S1 includes S11 'to S12', wherein:
s11', when the air conditioner is in heating operation, the air conditioner records the operation time length of the outdoor unit;
s12', when the cumulative operation time T1 of the outdoor unit is longer than or equal to the third set time, the outdoor unit is judged to enter the cleaning mode.
As shown in the control logic diagram of fig. 3, in the heating mode, the third set time length stored in the outdoor main control board for the outdoor heat exchanger to enter the cleaning mode is T0, and optionally 720h for T0, when the heating mode is started to operate, the outdoor main control board automatically accumulates the actual operation time length T1 of the outdoor unit, and determines the size relationship between T1 and T0, and when the main control board determines that the accumulated startup time length T1 is greater than or equal to T0, the outdoor main control board automatically enters the cleaning mode, or enters the cleaning mode according to a control instruction of a user. If the outdoor unit main control board judges that the conditions are not met, the current state is maintained to continue to operate, the main control board synchronously records the continuous operation time length T2, and when the numerical value of T1+ T2 meets the relation, the outdoor unit main control board automatically enters a cleaning mode or enters the cleaning mode according to a user instruction. And after entering the cleaning mode, clearing the accumulated time length, and accumulating the running time length of the outdoor unit again.
Further optionally, when the air conditioner of this embodiment respectively reaches the setting condition for entering the cleaning mode in the cooling or heating mode, the air conditioner may automatically enter the cleaning mode, and may also enter the cleaning mode according to an instruction of a user. Namely, if the set condition for entering the cleaning mode is reached, sending a prompt message to the user; and if a cleaning mode instruction sent by a user is received, adjusting the running speed of the outdoor fan and the opening of the throttle valve. The user can set whether the cleaning mode is required to be reminded by himself, if the cleaning mode is required to be reminded, the cleaning mode is executed according to the user instruction after the cleaning mode setting condition is reached, and if the cleaning mode is not required to be reminded, the cleaning mode is automatically executed after the cleaning mode setting condition is reached.
Further optionally, as shown in the control logic of fig. 4, when the air conditioner is in cooling operation, step S3 includes S31 to S32, where:
s31, controlling the heating operation of the air conditioner;
and S32, controlling the outdoor fan to operate at the lowest rotating speed and increasing the opening degree of the throttle valve.
When the air conditioner is operated for heating, the step S3 includes S31 'to S32', in which:
s31, keeping the current heating mode running;
and S32, controlling the outdoor fan to operate at the lowest rotating speed and increasing the opening degree of the throttle valve.
In the cleaning mode process, when the outdoor unit regulates and controls the air conditioner according to different operation modes of heating and cooling, the surface of the outdoor heat exchanger begins to frost and freeze, under the condition, the outdoor unit continuously operates for a fourth set time t, and the fourth set time t is stored in the main control panel of the outdoor unitIs provided with,tIs provided withOptional 30min, and when the running time satisfies t is more than or equal to tIs provided withAnd when the outdoor heat exchanger is in the cleaning mode, the outdoor heat exchanger is not frozen continuously, ice on the surface of the outdoor heat exchanger begins to melt, and dirt on the surface of the condenser is washed away in the process of melting the ice on the surface of the outdoor heat exchanger, so that the aim of cleaning an outdoor Chinese district is fulfilled. If the running time relation is not met, the outdoor unit continues to run for a period of time t1, and when t + t1 is more than or equal to tIs provided withAnd executing the work according to the satisfied conditions.
The present embodiment also proposes a control device of an air conditioner, which includes one or more processors and a non-transitory computer-readable storage medium storing program instructions, when the one or more processors execute the program instructions, the one or more processors are configured to implement the method of any one of the above.
The embodiment also provides an air conditioner which adopts the control method or the control device.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. A control method of an air conditioner is characterized in that the air conditioner comprises a cleaning mode for cleaning an outdoor heat exchanger, and the control method comprises the following steps
Judging whether to enter the cleaning mode according to the outdoor environment temperature and the outer tube temperature when the air conditioner operates in a refrigerating mode; judging whether to enter the cleaning mode or not according to the running time of the outdoor unit when the air conditioner is in heating running;
and when the air conditioner enters the cleaning mode, adjusting the running speed of the outdoor fan and the opening of the throttle valve.
2. The method as claimed in claim 1, wherein the step of determining whether to enter the cleaning mode according to the outdoor ambient temperature and the outer tube temperature comprises
When the air conditioner operates in a refrigerating mode, the initial outdoor environment temperature T is obtainedOuter ring 0
When the initial outdoor ambient temperature TOuter ring 0When the temperature is less than or equal to the first temperature value, the outdoor environment temperature T of the air conditioner when the air conditioner is started to operate to T1 is obtainedOuter ring 1Outer tube temperature TOuter tube 1
Continuously monitoring the temperature T of the outer pipe within the time period T2 after the air conditioner operates to the time T1Outer tube
According to the initial outdoor ambient temperature T of the air conditionerOuter ring 0And the outdoor environment temperature T of the air conditioner when the air conditioner is started to operate to T1Outer ring 1Outer tube temperature TOuter tube 1And the temperature T of the outer pipe of the air conditioner from T1 to T2Outer tubeTo determine whether the cleaning mode is entered.
3. The method as claimed in claim 2, wherein the control method is based on an initial outdoor ambient temperature T of the air conditionerOuter ring 0And the outdoor environment temperature of the air conditioner when the air conditioner is started to operate to t1TOuter ring 1Outer tube temperature TOuter tube 1And the temperature T of the outer pipe of the air conditioner from T1 to T2Outer tubeTo determine whether to enter the cleaning mode, including
Entering the cleaning mode when the following three temperature conditions are simultaneously satisfied:
P1、Touter ring 1≤TOuter ring 0+ a second temperature value;
p2, when the air conditioner is started to operate to T1 moment, TOuter tube 1≥TOuter ring 1+ third temperature value
P3, and the temperature T of the outer pipe within the time period T2 after the air conditioner operates to the time T1Outer tubeSatisfy, TOuter tubeThe temperature value is more than or equal to the fourth temperature value;
when any one of the above three conditions is not satisfied, the cleaning mode is not entered.
4. The method as claimed in claim 1, wherein the determining whether to enter the cleaning mode according to an operation time period of an outdoor unit when the air conditioner performs a heating operation includes
When the air conditioner is in heating operation, the air conditioner records the operation time length of the outdoor unit;
and when the accumulated running time T1 of the outdoor unit is longer than or equal to a third set time, judging to enter the cleaning mode.
5. The method as claimed in claim 1, wherein the adjusting of the operation speed of the outdoor fan and the opening of the throttle valve after the air conditioner enters the cleaning mode comprises
Sending prompt information to a user after the air conditioner enters the cleaning mode;
and if a cleaning mode instruction sent by a user is received, adjusting the running speed of the outdoor fan and the opening of the throttle valve.
6. The control method of an air conditioner according to claim 1 or 5, wherein said adjusting the operation speed of the outdoor fan and the opening of the throttle valve comprises
When the air conditioner operates in a refrigerating mode, the air conditioner controls the air conditioner to operate in a heating mode after entering the cleaning mode;
and controlling the outdoor fan to operate at the lowest rotating speed and increasing the opening degree of the throttle valve.
7. The control method of an air conditioner according to claim 1, wherein the operating speed of the outdoor fan and the opening of the throttle valve are adjusted, further comprising
When the air conditioner is in heating operation, the air conditioner keeps the current heating mode to operate after entering the cleaning mode;
and controlling the outdoor fan to operate at the lowest rotating speed and increasing the opening degree of the throttle valve.
8. The control method of an air conditioner according to claim 1, wherein the cleaning mode is exited when a period of time for entering the cleaning mode reaches a fourth set period of time.
9. A control apparatus of an air conditioner, comprising one or more processors and a non-transitory computer readable storage medium storing program instructions, the one or more processors being configured to implement the method according to any one of claims 1 to 9 when the program instructions are executed by the one or more processors.
10. An air conditioner using the control method according to any one of claims 1 to 8 or the control device according to claim 9.
CN202111480583.9A 2021-12-06 2021-12-06 Control method of air conditioner and air conditioner Active CN114216231B (en)

Priority Applications (1)

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