CN114216231B - 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
CN114216231B
CN114216231B CN202111480583.9A CN202111480583A CN114216231B CN 114216231 B CN114216231 B CN 114216231B CN 202111480583 A CN202111480583 A CN 202111480583A CN 114216231 B CN114216231 B CN 114216231B
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Prior art keywords
air conditioner
cleaning mode
outer tube
temperature
time
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CN114216231A (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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    • 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)
  • Human Computer Interaction (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (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: when the air conditioner is in refrigeration operation, judging whether to enter the cleaning mode according to the outdoor environment temperature and the outer pipe temperature; when the air conditioner is in heating operation, judging whether to enter the cleaning mode according to the operation time of the outdoor unit; and after the air conditioner enters the cleaning mode, adjusting the running rotating speed of the outdoor fan and the opening degree of the throttle valve. According to the control method of the air conditioner, the air conditioner can automatically clean the outdoor heat exchanger through simple control logic on the basis of not 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 accumulate on the outdoor heat exchanger, so that the heat exchange efficiency of the indoor heat exchanger is reduced, and the heating and refrigerating performances of the air conditioner can be influenced due to low heat exchange efficiency. Therefore, cleaning of the outdoor heat exchanger is required to improve heat exchange efficiency. The prior art has disclosed that the cleaning device for cleaning the outdoor heat exchanger is added in the outdoor unit of the air conditioner, but the cost of the air conditioner is obviously increased, so that a method for cleaning the outdoor heat exchanger can be realized without adding other extra production cost.
The present invention has been made in view of this.
Disclosure of Invention
In order to solve the above-mentioned problems, the present invention provides a control method of an air conditioner including a cleaning mode for cleaning an outdoor heat exchanger, the control method including
When the air conditioner is in refrigeration operation, judging whether to enter the cleaning mode according to the outdoor environment temperature and the outer pipe temperature; when the air conditioner is in heating operation, judging whether to enter the cleaning mode according to the operation time of the outdoor unit;
and after the air conditioner enters the cleaning mode, adjusting the running rotating speed of the outdoor fan and the opening degree of the throttle valve.
Further optionally, when the air conditioner is in cooling operation, determining whether to enter the cleaning mode according to the outdoor environment temperature and the external pipe temperature includes
When the air conditioner is in refrigeration operation, the initial outdoor environment temperature T is obtained Outer ring 0
When the initial outdoor environment temperature T Outer ring 0 When the first temperature value is less than or equal to the first temperature value, acquiring the outdoor environment temperature T from the starting operation of the air conditioner to the time T1 Outer ring 1 Temperature T of outer tube Outer tube 1
Continuously monitoring the temperature T of the outer tube in the time T2 after the air conditioner operates to the time T1 Outer tube
According to the initial outdoor environment temperature T of the air conditioner Outer ring 0 Outdoor environment temperature T from starting operation of air conditioner to time T1 Outer ring 1 Temperature T of outer tube Outer tube 1 And the temperature T of the outer tube of the air conditioner from the time T1 to the time T2 Outer tube To determine whether to enter the cleaning mode.
Further optionally, the method is based on an initial outdoor environment temperature T of the air conditioner Outer ring 0 Outdoor environment temperature T from starting operation of air conditioner to time T1 Outer ring 1 Temperature T of outer tube Outer tube 1 And the temperature T of the outer tube of the air conditioner from the time T1 to the time T2 Outer tube To determine whether to enter the cleaning mode, including
The cleaning mode is entered when the following three temperature conditions are simultaneously met:
P1、T outer ring 1 ≤T Outer ring 0 +a second temperature value;
p2, when the air conditioner is started and operated to the time T1, T Outer tube 1 ≥T Outer ring 1 +third temperature value
P3, the temperature T of the outer tube in the time T2 after the air conditioner operates to the time T1 Outer tube Satisfy T Outer tube The temperature value is not less than 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 is in heating operation, determining whether to enter the cleaning mode according to an operation duration of the outdoor unit includes
When the air conditioner heats and operates, the air conditioner records the operation time of the outdoor unit;
and when the accumulated running time T1 of the outdoor unit is more 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 degree of the throttle valve, including
When the air conditioner enters the cleaning mode, a prompt message is sent to a user;
and if a cleaning mode instruction sent by a user is received, adjusting the running rotating speed of the outdoor fan and the opening degree 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 heating operation of the air conditioner after the air conditioner enters the cleaning mode when the air conditioner is in the cooling operation;
and controlling the outdoor fan to operate at the lowest rotating speed, and increasing the opening of the throttle valve.
Further optionally, adjusting the operating speed of the outdoor fan and the opening degree 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 of the throttle valve.
Further optionally, when the duration of entering the cleaning mode reaches a fourth set duration, exiting the cleaning mode.
The invention also proposes a control device for an air conditioner comprising one or more processors and a non-transitory computer readable storage medium storing program instructions, which when executed by the one or more processors, are adapted to carry out the method of any one of the preceding claims.
The invention also provides an air conditioner which adopts the control method or the control device.
After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects:
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 the 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 and 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. It is evident that the drawings in the following description are only examples, from which other drawings can be obtained by a person skilled in the art without the inventive effort. In the drawings:
fig. 1: the control logic diagram is provided in the embodiment of the invention;
fig. 2: the control logic diagram is used for controlling the air conditioner in the refrigerating operation according to the embodiment of the invention;
fig. 3: the embodiment of the invention is a control logic diagram in heating operation;
fig. 4: a control logic diagram of a cleaning mode according to an embodiment of the present invention.
It should be noted that these drawings and the written description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept to those skilled in the art by referring to the specific embodiments.
Detailed Description
In the description of the present invention, it should be noted that the azimuth or positional relationship indicated by the terms "inner", "outer", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "contacting," and "communicating" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Aiming at the problem that the cleaning cost is increased because a special cleaning device is required to be additionally arranged for cleaning the outdoor heat exchanger in the existing air conditioning room, the embodiment provides a control method capable of realizing the automatic cleaning of the outdoor heat exchanger through simple control logic on the basis of not adding other devices, and the control method only needs to update the control logic, does not need to increase other additional production cost and does not influence the overall production efficiency of the outdoor unit.
The air conditioner of the embodiment includes a cleaning mode for cleaning the outdoor heat exchanger, and the control method of the air conditioner is as shown in the control logic diagram of fig. 1, and includes steps S1 to S2, wherein:
s1, judging whether to enter the cleaning mode according to the outdoor environment temperature and the outer pipe temperature when the air conditioner is in refrigeration operation; when the air conditioner is in heating operation, judging whether to enter the cleaning mode according to the operation time of the outdoor unit;
s2, after the air conditioner enters the cleaning mode, the running rotating speed of the outdoor fan and the opening degree of the throttle valve are adjusted.
In this embodiment, whether to enter a cleaning mode for cleaning the outdoor heat exchanger is determined under the cooling and heating operation of the air conditioner, and is determined by the outdoor environment temperature and the outer pipe temperature under the cooling operation, and under the heating operation, because the temperature of the outer machine is low as a whole, whether the outdoor heat exchanger needs cleaning is difficult to realize according to the determination logic of the cooling operation, and therefore, the operation duration of the outdoor machine is recorded to determine. When the outdoor fan enters a cleaning mode, the running rotating speed of the outdoor fan and the opening of the throttle valve are adjusted to ensure that the surface of the outdoor heat exchanger is easy to freeze, and when the ice on the surface of the outdoor heat exchanger melts, dirt on the surface of the outdoor heat exchanger is washed away, so that the aim of cleaning the outdoor heat exchanger is fulfilled.
Further alternatively, the step S1 includes S11 to S14 during the cooling operation of the air conditioner, where:
s11, when the air conditioner is in refrigeration operation, obtaining initial outdoor environment temperature T Outer ring 0
S12, when the initial outdoor environment temperature T Outer ring 0 When the first temperature value is less than or equal to the first temperature value, acquiring the outdoor environment temperature T from the starting operation of the air conditioner to the time T1 Outer ring 1 Temperature T of outer tube Outer tube 1
S13, continuously monitoring the temperature T of the outer tube within the time T2 after the air conditioner operates to the time T1 Outer tube
S14, according to the initial outdoor environment temperature T of the air conditioner Outer ring 0 Outdoor environment temperature T from starting operation of air conditioner to time T1 Outer ring 1 Temperature T of outer tube Outer tube 1 And the temperature T of the outer tube of the air conditioner from the time T1 to the time T2 Outer tube To determine whether to enter the cleaning mode.
As shown in the control logic diagram of fig. 2, when the air conditioner is in cooling operation, the main control board of the outdoor unit first records the initial temperature T of the outdoor environment when the air conditioner is turned on Outer ring 0 When T Outer ring 0 And when the temperature is less than or equal to the first temperature value, cleaning the outdoor heat exchanger. Obtaining an initial temperature T Outer ring 0 The air conditioner can be obtained at the moment when the air conditioner starts the refrigeration operation, and also can be obtained after the air conditioner operates for a period of time. When judging T Outer ring 0 After the first temperature value is less than or equal to the first temperature value, acquiring the outdoor environment temperature T from the starting operation of the air conditioner to the time T1 Outer ring 1 Temperature T of outer tube Outer tube 1 And continuously monitoring the temperature T of the outer tube within the time T2 after the air conditioner operates to the time T1 Outer tube The air conditioner can continuously acquire the temperature T of the outer tube within the time T2 Outer tube The temperature T of the outer tube can also be obtained once every set time Outer tube For example, the outer tube temperature T is obtained every 5s Outer tube And continuously detecting the temperature T of the outer tube for a period of T2 Outer tube Whether the fourth set temperature value is reached. When the outdoor environment temperature T is obtained Outer ring 1 Temperature T of outer tube Outer tube 1 T is as follows Outer tube After that, the main control board of the outdoor unit automatically judges the following conditions, namely, enters a cleaning mode when the following three temperature conditions are met simultaneously:
P1、T outer ring 1 ≤T Outer ring 0 +a second temperature value;
p2, when the air conditioner is started and operated to the time T1, T Outer tube 1 ≥T Outer ring 1 +third temperature value
P3, the temperature T of the outer tube in the time T2 after the air conditioner operates to the time T1 Outer tube Satisfy T Outer tube The temperature value is not less than 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 period from starting up to t1 is 20min, the time period of t2 is 30min, and three judgment conditions are as follows:
P1、T outer ring 1 ≤T Outer ring 0 +2℃;
P2、T Outer tube 1 ≥T Outer ring 1 +15℃;
P3, after starting up and running for 30min, detecting T for 20min continuously Outer tube ≥52℃。
If the judging result synchronously meets the three conditions, the situation that the outdoor heat exchanger is dirty is indicated, the outdoor opportunity transmits a dirty blocking signal to the indoor unit, the air conditioner is controlled to automatically enter a cleaning mode, or a reminding signal of the dirty blocking of the outdoor heat exchanger appears on a display panel of the indoor unit, and the dirty blocking signal of the outdoor heat exchanger continuously shines until a user selects to enter a cleaning mode for cleaning the outdoor heat exchanger. If the judging result does not meet the three conditions, or the detected T Outer ring 0 And if the temperature is larger than the first temperature value, the outdoor heat exchanger is not required to be cleaned, and the current state operation is maintained. This is because of the outer ring temperature T Outer ring 0 When the first temperature value is more 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 less than or equal to 35 ℃ optionally.
Further alternatively, step S1 includes S11 'to S12' when the air conditioner is in heating operation, wherein:
s11', when the air conditioner heats and operates, the air conditioner records the operation time of the outdoor unit;
and S12', judging to enter the cleaning mode when the accumulated operation time length T1 of the outdoor unit is more than or equal to a third set time length.
As shown in the control logic diagram of fig. 3, in the heating mode, the third set duration of the outdoor heat exchanger stored in the main control board of the outdoor unit entering the cleaning mode is T0, and T0 is optionally 720h, when the heating mode is started, the main control board of the outdoor unit automatically accumulates the actual running duration T1 of the outdoor unit, determines the magnitude relation between T1 and T0, and when the main control board determines that the accumulated starting duration T1 is greater than or equal to T0, automatically enters the cleaning mode, or enters the cleaning mode according to a control instruction of a user. If the main control board of the outdoor unit judges that the conditions are not met, the main control board keeps the current state to continue running, the main control board synchronously records the duration T2 of the continued running, and when the numerical value of T1+ T2 meets the relation, the main control board automatically enters a cleaning mode or enters the cleaning mode according to a user instruction. When the cleaning mode is entered, the accumulated time length is cleared, and the running time length of the outdoor unit is accumulated again.
Further alternatively, when the air conditioner in this embodiment reaches the set conditions for entering the cleaning mode in the cooling or heating mode, the air conditioner may automatically enter the cleaning mode, or may enter the cleaning mode according to a user instruction. If the set condition for entering the cleaning mode is reached, a prompt message is sent to the user; and if a cleaning mode instruction sent by a user is received, adjusting the running rotating speed of the outdoor fan and the opening degree of the throttle valve. The user can set whether the cleaning mode reminding is needed or not by himself, if the cleaning mode reminding is needed, the cleaning mode is executed according to the user instruction after the cleaning mode setting condition is entered, and if the cleaning mode reminding is not needed, the cleaning mode is automatically executed after the cleaning mode setting condition is reached.
Further alternatively, as shown in the control logic of fig. 4, step S3 includes S31 to S32 when the air conditioner is in cooling operation, wherein:
s31, controlling the heating operation of the air conditioner;
s32, controlling the outdoor fan to operate at the lowest rotation speed, and increasing the opening degree of the throttle valve.
When the air conditioner is in heating operation, the step S3 includes S31 'to S32', wherein:
s31, keeping the current heating mode to operate;
s32, controlling the outdoor fan to operate at the lowest rotation speed, and increasing the opening degree of the throttle valve.
In the cleaning mode, when the outdoor unit performs the above-mentioned regulation and control on the air conditioner according to different operation modes of heating and cooling, the surface of the outdoor heat exchanger will start to frost and freeze, under this condition, the outdoor unit continuously operates for a fourth set time t, and the main control board of the outdoor unit stores the fourth set time t Is provided with ,t Is provided with Optionally 30min, when the running time satisfies t not less than t Is provided with And 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 outdoor hua is fulfilled. If the operation time relation is not satisfied, the outdoor unit continues to operate for a period of time t1, and when t+t1 is greater than or equal to t Is provided with And executing the work according to the satisfied conditions.
The present embodiment also proposes a control device for an air conditioner, which includes 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-mentioned methods when the one or more processors execute the program instructions.
The embodiment also provides an air conditioner, which adopts the control method or the control device.
The foregoing description is only illustrative of the preferred embodiment of the present invention, and is not to be construed as limiting the invention, but is to be construed as limiting the invention to any and all simple modifications, equivalent variations and adaptations of the embodiments described above, which are within the scope of the invention, may be made by those skilled in the art without departing from the scope of the invention.

Claims (8)

1. A control method of an air conditioner, the air conditioner including a cleaning mode for cleaning an outdoor heat exchanger, the control method comprising
When the air conditioner is in refrigeration operation, judging whether to enter the cleaning mode according to the outdoor environment temperature and the outer pipe temperature; when the air conditioner is in heating operation, judging whether to enter the cleaning mode according to the operation time of the outdoor unit;
when the air conditioner enters the cleaning mode, the running rotating speed of the outdoor fan and the opening of the throttle valve are adjusted;
when the air conditioner is in refrigeration operation, judging whether to enter the cleaning mode according to the outdoor environment temperature and the outer tube temperature, wherein the method comprises the following steps of
When the air conditioner is in refrigeration operation, the initial outdoor environment temperature T is obtained Outer ring 0
When the initial outdoor environment temperature T Outer ring 0 When the first temperature value is less than or equal to the first temperature value, acquiring the outdoor environment temperature T from the starting operation of the air conditioner to the time T1 Outer ring 1 Temperature T of outer tube Outer tube 1
Continuously monitoring the temperature T of the outer tube in the time T2 after the air conditioner operates to the time T1 Outer tube
According to the initial outdoor environment temperature T of the air conditioner Outer ring 0 Outdoor environment temperature T from starting operation of air conditioner to time T1 Outer ring 1 Temperature T of outer tube Outer tube 1 And the temperature T of the outer tube of the air conditioner from the time T1 to the time T2 Outer tube Judging whether the cleaning mode is entered or not;
according to the initial outdoor environment temperature T of the air conditioner Outer ring 0 Outdoor environment temperature T from starting operation of air conditioner to time T1 Outer ring 1 Temperature T of outer tube Outer tube 1 And the temperature T of the outer tube of the air conditioner from the time T1 to the time T2 Outer tube To determine whether to enter the cleaning mode, including
The cleaning mode is entered when the following three temperature conditions are simultaneously met:
P1、T outer ring 1 ≤T Outer ring 0 +a second temperature value;
p2, when the air conditioner is started and operated to the time T1, T Outer tube 1 ≥T Outer ring 1 +third temperature value
P3, the temperature T of the outer tube in the time T2 after the air conditioner operates to the time T1 Outer tube Satisfy T Outer tube The temperature value is not less than the fourth temperature value;
when any one of the above three conditions is not satisfied, the cleaning mode is not entered.
2. The method according to claim 1, wherein the step of determining whether to enter the cleaning mode according to an operation time of the outdoor unit when the air conditioner is operated for heating comprises
When the air conditioner heats and operates, the air conditioner records the operation time of the outdoor unit;
and when the accumulated running time T1 of the outdoor unit is more than or equal to a third set time, judging to enter the cleaning mode.
3. The method according to claim 1, wherein the step of adjusting the operation speed of the outdoor fan and the throttle opening after the air conditioner enters the cleaning mode comprises the steps of
When the air conditioner enters the cleaning mode, a prompt message is sent to a user;
and if a cleaning mode instruction sent by a user is received, adjusting the running rotating speed of the outdoor fan and the opening degree of the throttle valve.
4. A control method of an air conditioner according to claim 1 or 3, wherein said adjusting the operation speed of the outdoor fan and the throttle opening degree comprises
When the air conditioner operates in a refrigerating mode, the air conditioner enters the cleaning mode and then controls the air conditioner to operate in a heating mode;
and controlling the outdoor fan to operate at the lowest rotating speed, and increasing the opening of the throttle valve.
5. The method of controlling an air conditioner according to claim 1, wherein the adjusting the operating speed of the outdoor fan and the throttle opening degree 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 of the throttle valve.
6. The control method of an air conditioner according to claim 1, wherein the cleaning mode is exited when a time period for entering the cleaning mode reaches a fourth set time period.
7. A control device for an air conditioner, characterized in that it comprises one or more processors and a non-transitory computer readable storage medium storing program instructions, which when executed by the one or more processors are adapted to carry out the method according to any one of claims 1-6.
8. An air conditioner employing the control method according to any one of claims 1 to 6 or employing the control device according to claim 7.
CN202111480583.9A 2021-12-06 2021-12-06 Control method of air conditioner and air conditioner Active CN114216231B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111480583.9A CN114216231B (en) 2021-12-06 2021-12-06 Control method of air conditioner and air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111480583.9A CN114216231B (en) 2021-12-06 2021-12-06 Control method of air conditioner and air conditioner

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