CN114838451B - Air conditioner control method and air conditioner - Google Patents

Air conditioner control method and air conditioner Download PDF

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Publication number
CN114838451B
CN114838451B CN202210564646.7A CN202210564646A CN114838451B CN 114838451 B CN114838451 B CN 114838451B CN 202210564646 A CN202210564646 A CN 202210564646A CN 114838451 B CN114838451 B CN 114838451B
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China
Prior art keywords
air conditioner
controlling
indoor unit
air
inner fan
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CN202210564646.7A
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Chinese (zh)
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CN114838451A (en
Inventor
刘怿宁
甘永健
陈焕锐
崔滢
谢龙
吕阳
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Aux Air Conditioning Co Ltd
Ningbo Aux Electric Co Ltd
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Aux Air Conditioning Co Ltd
Ningbo Aux Electric Co Ltd
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Priority to CN202210564646.7A priority Critical patent/CN114838451B/en
Publication of CN114838451A publication Critical patent/CN114838451A/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
    • F24F11/30Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • 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
    • F24F11/46Improving electric energy efficiency or saving
    • 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
    • F24F11/62Control 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
    • F24F11/72Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/79Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied air
    • 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
    • F24F11/86Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
    • 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
    • F24F2140/00Control inputs relating to system states
    • F24F2140/30Condensation of water from cooled air
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00Details or features not otherwise provided for
    • F24F2221/34Heater, e.g. gas burner, electric air heater
    • 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)
  • Thermal Sciences (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The embodiment of the invention provides a control method of an air conditioner and the air conditioner. The control method of the air conditioner comprises the following steps: after the air conditioner is started to dry and remove the mould, judging whether the air conditioner is started for the first time; if the air conditioner is not started for the first time, controlling the air conditioner to run for a fourth preset time period in a state that the compressor is stopped, the air guide piece of the indoor unit is adjusted to a cold air prevention position, and the inner fan is adjusted to a low air level, and controlling the air conditioner to dry and remove mildew according to the magnitude relation between the average current value of the inner fan in the fourth preset time period and the average current value of the target inner fan; and if the average current value of the inner fan meets a second preset condition, controlling the air conditioner to dry and remove mildew by controlling the rotating speed of the inner fan. The invention solves the technical problem that the existing drying mildew-proof function is easy to cause energy waste.

Description

Air conditioner control method and air conditioner
Technical Field
The present invention relates to the field of air conditioner control technologies, and in particular, to a control method of an air conditioner and an air conditioner.
Background
With the development of technology and the increasing level of living of people, air conditioners become an indispensable home appliance in the life of people. With the gradual maturity of the technology in the household appliances and the gradual and competitive trend, the quality requirements of consumers on the air conditioner are also higher.
The existing drying and mildew-proof functions are as follows: in the refrigeration mode, after the user remotely shuts down, the air conditioner is switched to a heating mode, and the air conditioner is shut down after running for a period of time; under the condition that the condensation water is little or no in the indoor unit heat exchanger, the indoor unit heat exchanger still operates to heat, and energy waste is caused.
Disclosure of Invention
In order to solve the above problems, the present invention provides a control method of an air conditioner, comprising: after the air conditioner is started to dry and remove the mould, judging whether the air conditioner is started for the first time; if the air conditioner is not started for the first time, controlling the air conditioner to run for a fourth preset time period in a state that the compressor is stopped, the air guide piece of the indoor unit is adjusted to a cold air prevention position, and the inner fan is adjusted to a low air level, and controlling the air conditioner to dry and remove mildew according to the magnitude relation between the average current value of the inner fan in the fourth preset time period and the average current value of the target inner fan; and if the average current value of the inner fan meets a second preset condition, controlling the air conditioner to dry and remove mildew by controlling the rotating speed of the inner fan.
The technical effect achieved after the technical scheme is adopted is as follows: it will be appreciated that when there is condensation water on the indoor heat exchanger, the indoor air intake, i.e. the load, will be reduced, resulting in a reduction in the phase current of the indoor fan. Therefore, the condensation water accumulation degree of the indoor unit can be known according to the relation between the average current value of the inner fan and the average current value of the target inner fan in the fourth preset time period, and accordingly corresponding air conditioner drying and mildew removal measures can be adopted according to the condensation water accumulation degree of the indoor unit. If the average current value of the inner fan meets a second preset condition, the condition that the condensation water in the current indoor unit is less or the condensation water does not exist in the indoor unit is indicated, the indoor unit can be dried by controlling the air conditioner to blow, and the heating operation of the air conditioner is not required to be controlled, so that the air conditioner is controlled to dry and remove mildew by controlling the rotating speed of the inner fan, the energy consumption of the air conditioner can be reduced, and the energy waste is avoided.
In this embodiment, the second preset condition includes: i 1 >△I 2 -I 0 The method comprises the steps of carrying out a first treatment on the surface of the Wherein the I is 1 The average current value of the inner fan; the I is 0 The average current value of the inner fan is the target; the delta I 2 Is a second preset current difference.
The technical effect achieved after the technical scheme is adopted is as follows: if I 1 >△I 2 -I 0 The average current value of the inner fan is relatively larger, that is, the condensation water in the current indoor unit is relatively less or the indoor unit has no condensation water.
In the present embodiment, I 0 The drying and mildew-removing function is started for the first time, the inner fan keeps running in a low wind gear, after the heating operation of the air conditioner is controlled for a third preset time period, the indoor unit heat exchanger is free from condensation, and when the air conditioner is stopped by the compressor, the indoor unit wind guide piece is adjusted to a cold wind prevention position and the inner fan runs in a state of low wind resistance, the inner fan runs in a sixth preset time period of average current value; wherein, the judging condition of no condensation of the indoor unit heat exchanger is T p >T p2 ;T p The temperature of the inner disk; t (T) p2 Is the second inner disk temperature threshold.
In this embodiment, if the average current value of the inner fan meets a second preset condition, controlling the air conditioner to dry and remove the mildew by controlling the rotation speed of the inner fan includes: if delta I 2 -I 0 <I 1 ≤△I 1 -I 0 The air conditioner is controlled to run in a state that the rotating speed of the inner fan is adjusted to the middle wind levelAfter the fifth preset time length, controlling the air conditioner to enter a standby state; if I 1 >△I 1 -I 0 Controlling the air conditioner to enter the standby state; wherein the DeltaI 1 The first preset current difference value is obtained; the standby state includes: the inner fan stops running, and the air guide piece closes the air outlet.
The technical effect achieved after the technical scheme is adopted is as follows: if delta I 2 -I 0 <I 1 ≤△I 1 -I 0 And the fact that a small amount of condensed water exists in the current indoor unit is indicated, in order to realize quick drying of the indoor unit, the rotating speed of the inner fan of the air conditioner is adjusted from a low air gear to a medium air gear, after the air conditioner is controlled to operate in the medium air gear for a fifth preset time period, the condensed water in the indoor unit is basically removed, and therefore the air conditioner is controlled to enter a standby state. If I 1 >△I 1 -I 0 It means that the condensation water in the indoor unit is basically removed, so that the air conditioner is controlled to enter a standby state.
In this embodiment, the control method of the air conditioner further includes: and if the air conditioner is started for the first time, controlling the air conditioner to perform drying and mildew removal according to the relation between the temperature of the inner tray and the threshold value of the temperature of the inner tray after controlling the heating operation of the air conditioner for a third preset time.
The technical effect achieved after the technical scheme is adopted is as follows: if the air conditioner is started for the first time, the condensation water attached to the heat exchanger coil of the indoor unit is evaporated by controlling the air conditioner to continuously heat for a third preset time period, so that the drying and mildew removal treatment of the indoor unit is realized. After the air conditioner heating operation is controlled for a third preset time period, the drying effect of the air conditioner heating operation at the last stage is known according to the magnitude relation between the inner disc temperature and the inner disc temperature threshold value, so that corresponding air conditioner drying and mildew removing measures can be adopted according to the drying effect of the air conditioner heating operation at the last stage, and the drying and mildew removing efficiency of the air conditioner is improved.
In this embodiment, the controlling the drying and mildew removal of the air conditioner according to the magnitude relation between the temperature of the inner tray and the threshold value of the temperature of the inner tray includes: if T p ≤T p1 Opening an electric heater of the indoor unit;acquiring the electric heating temperature of the indoor unit; if the electric heating temperature is greater than or equal to an electric heating temperature threshold value, the electric heater of the indoor unit is turned off; wherein the T is p The temperature of the inner disk; the T is p1 Is the first inner disk temperature threshold.
The technical effect achieved after the technical scheme is adopted is as follows: if T p ≤T p1 The temperature of the inner tray is lower, that is, the drying effect of the heating operation of the air conditioner at one stage is poorer, and the quick drying of the indoor unit of the air conditioner cannot be realized only by the heating operation of the air conditioner, so that the electric heater of the indoor unit is started to accelerate the evaporation of condensed water in the indoor unit, and the problem that users are doubtful and complaints are caused by overlong drying and mildew removing time of the indoor unit is avoided. If the electric heating temperature is greater than or equal to the electric heating temperature threshold, the fact that the current electric heating temperature is too high is indicated to easily cause the plastic part of the indoor unit of the air conditioner to be heated and deformed, even fire disaster is caused by high temperature, so that the electric heater of the indoor unit of the air conditioner is turned off, and the operation reliability of the indoor unit of the air conditioner is ensured.
In this embodiment, the controlling the drying and mildew removal of the air conditioner according to the magnitude relation between the temperature of the inner tray and the threshold value of the temperature of the inner tray further includes: if T p1 <T p ≤T p2 The air conditioner is controlled to continue to operate in the heating mode, once T is detected p >T p2 After the air conditioner is controlled to run for a fourth preset time period in a state that the compressor stops running, the outer fan stops running, the inner fan runs in a low wind gear, and the air guide piece of the indoor unit is adjusted to be in a cold air prevention position, the air conditioner is controlled to enter a standby state; wherein the standby state includes: the inner fan stops running, and the air guide piece is closed.
The technical effect achieved after the technical scheme is adopted is as follows: if T p1 <T p ≤T p2 The temperature of the inner tray is moderate, that is, the drying effect of the heating operation of the air conditioner at the last stage is better, so that the air conditioner is controlled to continue to operate in the current state, the temperature of the inner tray is continuously increased by the heating operation, and once T is detected p >T p2 The condensed water in the indoor unit is basically removed, so that the air conditioner is controlled to stop running by the compressor and the external fanAnd the air guide parts of the indoor units are adjusted to a state of cold air prevention position to run for a fourth preset time period, namely, the indoor units are controlled to continue to run so as to radiate heat generated when the air conditioner is dried and mildew is removed while the outdoor units and the outdoor fans of the air conditioner are closed. In addition, the indoor unit air guide piece is adjusted to the cold air prevention position so as to prevent hot air from being blown to a person, and the use comfort of a user is affected.
In this embodiment, the controlling the drying and mildew removal of the air conditioner according to the magnitude relation between the temperature of the inner tray and the threshold value of the temperature of the inner tray further includes: if T p >T p2 The electric heater of the indoor unit is turned off, and after the air conditioner is controlled to run for a fourth preset time period in a state that the compressor stops running, the outer fan stops running, the inner fan runs in a low wind shield mode, and the air guide piece of the indoor unit is adjusted to be in a cold air prevention position, the air conditioner is controlled to enter a standby state; wherein T is p The temperature of the inner disk; t (T) p1 A first inner disk temperature threshold; t (T) p2 A second inner disk temperature threshold; the standby state includes: the inner fan stops running, and the air guide piece closes the air outlet.
The technical effect achieved after the technical scheme is adopted is as follows: if T p >T p2 It is indicated that the condensation water in the indoor unit is basically removed, so that the electric heater of the indoor unit is turned off to avoid unnecessary energy consumption and waste.
In this embodiment, before the air conditioner starts the drying and mildew removing function, the method further includes: if the continuous operation time length of the air conditioner in the refrigeration or dehumidification mode is longer than the first preset time length or the accumulated operation time length is longer than the second preset time length, the air conditioner is controlled to start the drying and mildew removing functions.
The technical effect achieved after the technical scheme is adopted is as follows: if the continuous operation time of the air conditioner in the refrigeration or dehumidification mode is longer than the first preset time or the accumulated operation time is longer than the second preset time, the fact that a plurality of condensed water is attached to the heat exchanger coil of the air conditioner indoor unit is indicated, and in order to avoid odor or bacterial infection caused by mildew of the air conditioner indoor unit, the air conditioner is controlled to start the drying and mildew removing functions.
An embodiment of the present invention provides an air conditioner, which executes the air conditioner control method according to any one of the previous embodiments.
The embodiment of the invention provides an air conditioner, which comprises: a computer-readable storage medium storing a computer program and a packaged IC, the computer program, when read and run by the packaged IC, implementing the air conditioner control method as in any one of the previous embodiments.
In summary, the foregoing embodiments of the present application may have one or more of the following advantages or benefits:
(1) It will be appreciated that when there is condensation water on the indoor unit, the air intake of the indoor unit, i.e. the load, will be reduced, resulting in a reduction of the phase current of the indoor fan. Therefore, the condensation water accumulation degree of the indoor unit can be known according to the relation between the average current value of the inner fan and the average current value of the target inner fan in the fourth preset time period, and accordingly corresponding air conditioner drying and mildew removal measures can be adopted according to the condensation water accumulation degree of the indoor unit. If the average current value of the inner fan meets a second preset condition, the condition that the condensation water in the current indoor unit is less or the condensation water does not exist in the indoor unit is indicated, the indoor unit can be dried by controlling the air conditioner to blow, and the heating operation of the air conditioner is not required to be controlled, so that the air conditioner is controlled to dry and remove mildew by controlling the rotating speed of the inner fan, the energy consumption of the air conditioner can be reduced, and the energy waste is avoided.
(2) If T p ≤T p1 The temperature of the inner tray is lower, that is, the drying effect of the heating operation of the air conditioner at one stage is poorer, and the quick drying of the indoor unit of the air conditioner cannot be realized only by the heating operation of the air conditioner, so that the electric heater of the indoor unit is started to accelerate the evaporation of condensed water in the indoor unit, and the problem that users are doubtful and complaints are caused by overlong drying and mildew removing time of the indoor unit is avoided. If the electric heating temperature is greater than or equal to the electric heating temperature threshold, the fact that the current electric heating temperature is too high is indicated to easily cause the plastic part of the indoor unit of the air conditioner to be heated and deformed, even fire disaster is caused by high temperature, so that the electric heater of the indoor unit of the air conditioner is turned off, and the operation reliability of the indoor unit of the air conditioner is ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flowchart of a control method of an air conditioner according to a first embodiment of the present invention.
Fig. 2 is a schematic flow chart of a control method of the air conditioner in fig. 1.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
[ first embodiment ]
Referring to fig. 1, a flow chart of a control method of an air conditioner according to a first embodiment of the present invention is shown. Referring to fig. 1 and 2, the control method of the air conditioner includes: after the air conditioner is started to dry and remove the mould, judging whether the air conditioner is started for the first time; if the air conditioner is not started for the first time, controlling the air conditioner to run for a fourth preset time period in a state that the compressor is stopped, the air guide piece of the indoor unit is adjusted to a cold air prevention position, and the inner fan is adjusted to a low air level, and controlling the air conditioner to dry and remove mildew according to the magnitude relation between the average current value of the inner fan in the fourth preset time period and the average current value of the target inner fan; and if the average current value of the inner fan meets a second preset condition, controlling the air conditioner to dry and remove mildew by controlling the rotating speed of the inner fan. Wherein the value range of the fourth preset time length is 5s-10s. The air guide piece at the air outlet of the indoor unit is adjusted to a cold air prevention position so as to prevent hot air from being blown directly to a person and influence the use comfort of a user, and the air guide piece is optionally deflected downwards to a preset position so that the hot air is blown directly to the ground.
It will be appreciated that when there is condensation water on the indoor unit, the air intake of the indoor unit, i.e. the load, will be reduced, resulting in a reduction of the phase current of the indoor fan. Therefore, the condensation water accumulation degree of the indoor unit can be known according to the relation between the average current value of the inner fan and the average current value of the target inner fan in the fourth preset time period, and accordingly corresponding air conditioner drying and mildew removal measures can be adopted according to the condensation water accumulation degree of the indoor unit. If the average current value of the inner fan meets a second preset condition, the condition that the condensation water in the current indoor unit is less or the condensation water does not exist in the indoor unit is indicated, the indoor unit can be dried by controlling the air conditioner to blow, and the heating operation of the air conditioner is not required to be controlled, so that the air conditioner is controlled to dry and remove mildew by controlling the rotating speed of the inner fan, the energy consumption of the air conditioner can be reduced, and the energy waste is avoided.
Further, the second preset condition includes: i 1 >△I 2 -I 0 The method comprises the steps of carrying out a first treatment on the surface of the Wherein the I is 1 The average current value of the inner fan; the I is 0 The average current value of the inner fan is the target; the delta I 2 Is a second preset current difference.
It will be appreciated that if I 1 >△I 2 -I 0 And the average current value of the inner fan is close to the average current value of the target inner fan, namely, the condensation water in the current indoor unit is less or the indoor unit does not have condensation water.
Further, if the average current value of the inner fan meets a second preset condition, controlling the air conditioner to dry and remove the mildew by controlling the rotation speed of the inner fan includes: if delta I 2 -I 0 <I 1 ≤△I 1 -I 0 Controlling the air conditioner to enter a standby state after controlling the air conditioner to run for a fifth preset time period in a state that the rotating speed of the inner fan is adjusted to a middle wind level; if I 1 >△I 1 -I 0 Controlling the air conditioner to enter the standby state; wherein the DeltaI 1 The first preset current difference value is obtained; the saidThe standby state includes: the inner fan stops running, and the air guide piece is closed.
It will be appreciated that if ΔI 2 -I 0 <I 1 ≤△I 1 -I 0 And the fact that a small amount of condensed water exists in the current indoor unit is indicated, in order to realize quick drying of the indoor unit, the rotating speed of the inner fan of the air conditioner is adjusted from a low air gear to a medium air gear, after the air conditioner is controlled to operate in the medium air gear for a fifth preset time period, the condensed water in the indoor unit is basically removed, and therefore the air conditioner is controlled to enter a standby state. If I 1 >△I 1 -I 0 It means that the condensation water in the indoor unit is basically removed, so that the air conditioner is controlled to enter a standby state.
Further, the control method of the air conditioner further comprises the following steps: and if the air conditioner is started for the first time, controlling the air conditioner to perform drying and mildew removal according to the relation between the temperature of the inner tray and the threshold value of the temperature of the inner tray after controlling the heating operation of the air conditioner for a third preset time.
It can be understood that if the air conditioner is started for the first time to dry and remove the mildew, the condensation water attached to the heat exchanger coil of the indoor unit is evaporated by controlling the air conditioner to continuously perform heating operation for a third preset time period, so as to realize the drying and mildew removal treatment of the indoor unit. After the air conditioner heating operation is controlled for a third preset time period, the drying effect of the air conditioner heating operation at the last stage is known according to the magnitude relation between the inner disc temperature and the inner disc temperature threshold value, so that corresponding air conditioner drying and mildew removing measures can be adopted according to the drying effect of the air conditioner heating operation at the last stage, and the drying and mildew removing efficiency of the air conditioner is improved. Wherein the value range of the third preset time length is 10s-15s.
Further, the controlling the drying and mildew removal of the air conditioner according to the magnitude relation between the temperature of the inner tray and the threshold value of the temperature of the inner tray comprises: if T p ≤T p1 Opening an electric heater of the indoor unit; acquiring the electric heating temperature of the indoor unit; if the electric heating temperature is greater than or equal to an electric heating temperature threshold value, the electric heater of the indoor unit is turned off; wherein the T is p The temperature of the inner disk; the T is p1 Is the first inner disk temperature threshold. Wherein T is p1 The range of the value of (2) is 40-50; the value range of the electric heating temperature threshold value is 65-70.
It will be appreciated that if T p ≤T p1 The temperature of the inner tray is lower, that is, the drying effect of the heating operation of the air conditioner at one stage is poorer, and the quick drying of the indoor unit of the air conditioner cannot be realized only by the heating operation of the air conditioner, so that the electric heater of the indoor unit is started to accelerate the evaporation of condensed water in the indoor unit, and the problem that users are doubtful and complaints are caused by overlong drying and mildew removing time of the indoor unit is avoided. If the electric heating temperature is greater than or equal to the electric heating temperature threshold, the fact that the current electric heating temperature is too high is indicated to easily cause the plastic part of the indoor unit of the air conditioner to be heated and deformed, even fire disaster is caused by high temperature, so that the electric heater of the indoor unit of the air conditioner is turned off, and the operation reliability of the indoor unit of the air conditioner is ensured.
Further, the controlling the drying and mildew removal of the air conditioner according to the magnitude relation between the inner disc temperature and the inner disc temperature threshold value further comprises: if T p1 <T p ≤T p2 The air conditioner is controlled to continue to operate in the current state, once T is detected p >T p2 After the air conditioner is controlled to run for a fourth preset time period in a state that the compressor stops running, the outer fan stops running and the air guide piece of the indoor unit is adjusted to be in a cold air prevention position, the air conditioner is controlled to enter a standby state; wherein the standby state includes: the inner fan stops running, and the air guide piece is closed. Wherein T is p2 The range of the value of (2) is 58-62.
It will be appreciated that if T p1 <T p ≤T p2 The temperature of the inner tray is moderate, that is, the drying effect of the heating operation of the air conditioner at the last stage is better, so that the air conditioner is controlled to continue to operate in the current state, the temperature of the inner tray is continuously increased by the heating operation, and once T is detected p >T p2 The condensation water in the indoor unit is basically removed, so that the air conditioner is controlled to run for a fourth preset time period in a state that the compressor stops running, the outer fan stops running and the air guide piece of the indoor unit is adjusted to the cold air prevention position, namely, the outdoor unit and the outer fan of the air conditioner are closed, and the indoor unit is controlled to continue running to dry the air conditionerThe heat generated during drying and mould removal is dissipated. In addition, the indoor unit air guide piece is adjusted to the cold air prevention position so as to prevent hot air from being blown to a person, and the use comfort of a user is affected.
Wherein I is 0 For the first time the air conditioner is started with the drying and mildew removing functions, the inner fan keeps running in a low wind gear, after the heating operation of the air conditioner is controlled for a third preset time period, the indoor unit heat exchanger is free of condensation, and when the air conditioner is stopped by the compressor, the indoor unit wind guide piece is adjusted to a cold wind prevention position and the inner fan runs in a state of low wind resistance, the inner fan runs in a sixth preset time period of average current value. In this case, I 0 The air intake of the indoor unit is influenced by not only the condensate water on the heat exchanger but also the filth blockage of the filter screen of the heat exchanger and the air inlet along with the change of time, so that the influence of filth blockage of the filter screen of the heat exchanger and the air inlet needs to be considered in the judgment of the average current of the inner fan, namely when the filth blockage of the filter screen of the heat exchanger and the air inlet is caused, I 0 Will become smaller and further delta I 2 -I 0 Relatively become larger, and then I 1 If the second preset condition is not easy to meet, the heating mode is continuously operated to strengthen the elimination of the condensed water, and bacterial breeding under the condition of dirty blockage is avoided. Furthermore, I 0 Or may be a preset value of the program.
Wherein, the average current value I of the target internal fan 0 And clearing after the air conditioner is powered off.
Further, the controlling the drying and mildew removal of the air conditioner according to the magnitude relation between the inner disc temperature and the inner disc temperature threshold value further comprises: if T p >T p2 Closing the indoor unit electric heater; wherein the T is p2 Is the second inner disk temperature threshold.
It will be appreciated that if T p >T p2 It is indicated that the condensation water in the indoor unit is basically removed, so that the electric heater of the indoor unit is turned off to avoid unnecessary energy consumption and waste. Wherein, when the electric heating is in the on state, the T is satisfied p >T p2 And turning off the electric heater of the indoor unit no matter whether the electric heating temperature meets the electric heating temperature threshold or not, namely, giving priority to the electric heating temperature according to the temperature of the inner disc.
Further, if the continuous operation time length of the air conditioner in the refrigeration or dehumidification mode is longer than the first preset time length or the accumulated operation time length is longer than the second preset time length, the air conditioner is controlled to start the drying and mildew removing functions. Wherein the value range of the first preset time length is 30min-60min, and the time length is Wen Tingji; the value range of the second preset time length is 2h-4h, including the time length reaching Wen Tingji; the accumulation of the first preset time length and the second preset time length is cleared when the machine is restarted.
It can be understood that if the continuous operation time of the air conditioner in the cooling or dehumidifying mode is longer than the first preset time or the accumulated operation time is longer than the second preset time, it is indicated that a great amount of condensed water is already attached to the heat exchanger coil of the air conditioner indoor unit, so as to avoid odor or bacterial infection caused by mildew of the air conditioner indoor unit, and control the air conditioner to start the drying and mildew removing functions.
Furthermore, the following limitation conditions are required to be satisfied when the air conditioner is controlled to start the drying and mildew removing functions: remote control, timing, operation panel or APP etc. are powered off without power interruption. The shutdown refers to the shutdown operation of the air conditioner by using a remote controller, a timing function, an operation panel or an APP and the like as a user. Is not equivalent to stopping when reaching temperature and powering off.
Further, if any one of the internal and external motor, the temperature sensor and the humidity detection module fails, the drying mildew-proof mode is not entered, a corresponding failure code is reported, and a user is prompted to repair the machine.
[ second embodiment ]
The second embodiment of the present invention provides an air conditioner, which executes the control method of the air conditioner provided in the first embodiment, and can achieve the same technical effects, so that repetition is avoided, and no further description is provided herein.
[ third embodiment ]
A third embodiment of the present invention provides an air conditioner. The air conditioner includes, for example: the air conditioner can realize the control method of the air conditioner provided by the first embodiment of the invention and achieve the same technical effects when the computer program is read and run by the packaging IC, and the repetition is avoided, and the description is omitted here.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (8)

1. A control method of an air conditioner, comprising:
after the air conditioner is started to dry and remove the mould, judging whether the air conditioner is started for the first time;
if the air conditioner is not started for the first time, controlling the air conditioner to run for a fourth preset time period in a state that the compressor is stopped, the air guide piece of the indoor unit is adjusted to a cold air prevention position, and the inner fan is adjusted to a low air level, and controlling the air conditioner to dry and remove mildew according to the magnitude relation between the average current value of the inner fan in the fourth preset time period and the average current value of the target inner fan;
if the average current value of the inner fan meets a second preset condition, controlling the air conditioner to dry and remove mildew by controlling the rotating speed of the inner fan;
the second preset condition includes: i 1 >△I 2 -I 0
Wherein I is 1 The average current value of the inner fan; i 0 The average current value of the inner fan is the target; deltaI 2 A second preset current difference value;
the air conditioner is started for the first time, the inner fan keeps running in a low wind gear, after the heating operation of the air conditioner is controlled for a third preset time period, the heat exchanger of the indoor unit is free from condensation, and when the air conditioner is operated in a state that the compressor is stopped, the air guide piece of the indoor unit is adjusted to a cold wind prevention position and the inner fan is in a low wind resistance state, the inner fan runs for a sixth preset time periodAverage current value, denoted as I 0
Wherein, the judging condition of no condensation of the indoor unit heat exchanger is T p >T p2 ;T p The temperature of the inner disk; t (T) p2 A second inner disk temperature threshold;
if the average current value of the inner fan meets a second preset condition, controlling the air conditioner to dry and remove the mildew by controlling the rotating speed of the inner fan comprises the following steps:
if delta I 2 -I 0 <I 1 ≤△I 1 -I 0 Controlling the air conditioner to run for a fifth preset time period in a state that the inner fan is adjusted to a middle wind shield, and controlling the air conditioner to enter a standby state;
if I 1 >△I 1 -I 0 Controlling the air conditioner to enter the standby state;
wherein DeltaI 1 The first preset current difference value is obtained;
the standby state includes: the inner fan stops running, and the air guide piece closes the air outlet.
2. The control method of an air conditioner according to claim 1, wherein the control method of an air conditioner further comprises:
and if the air conditioner is started for the first time, controlling the air conditioner to perform drying and mildew removal according to the relation between the temperature of the inner tray and the threshold value of the temperature of the inner tray after controlling the heating operation of the air conditioner for a third preset time.
3. The method for controlling an air conditioner according to claim 2, wherein controlling drying and mildew removal of the air conditioner according to a magnitude relation between an inner tray temperature and an inner tray temperature threshold value comprises:
if T p ≤T p1 Opening an electric heater of the indoor unit;
acquiring the electric heating temperature of the indoor unit;
if the electric heating temperature is greater than or equal to an electric heating temperature threshold value, the electric heater of the indoor unit is turned off;
wherein T is p Is the temperature of the inner diskA degree; t (T) p1 Is the first inner disk temperature threshold.
4. The method for controlling an air conditioner according to claim 2, wherein controlling the air conditioner to dry and remove mold according to the magnitude relation between the temperature of the inner tray and the threshold value of the temperature of the inner tray further comprises:
if T p1 <T p ≤T p2 The air conditioner is controlled to continue to operate in the heating mode, once T is detected p >T p2 After the air conditioner is controlled to run for a fourth preset time period in a state that the compressor stops running, the outer fan stops running, the inner fan runs on a low windshield, and the air guide piece of the indoor unit is adjusted to be in a cold air prevention position, the air conditioner is controlled to enter a standby state;
wherein T is p The temperature of the inner disk; t (T) p1 A first inner disk temperature threshold; t (T) p2 A second inner disk temperature threshold; the standby state includes: the inner fan stops running, and the air guide piece closes the air outlet.
5. The method for controlling an air conditioner according to claim 2, wherein controlling the air conditioner to dry and remove mold according to the magnitude relation between the temperature of the inner tray and the threshold value of the temperature of the inner tray further comprises:
if T p >T p2 The electric heater of the indoor unit is turned off, and after the air conditioner is controlled to run for a fourth preset time period in a state that the compressor stops running, the outer fan stops running, the inner fan runs in a low wind shield mode, and the air guide piece of the indoor unit is adjusted to be in a cold air prevention position, the air conditioner is controlled to enter a standby state;
wherein T is p The temperature of the inner disk; t (T) p1 A first inner disk temperature threshold; t (T) p2 A second inner disk temperature threshold; the standby state includes: the inner fan stops running, and the air guide piece closes the air outlet.
6. The control method of an air conditioner according to any one of claims 1 to 5, further comprising, before the air conditioner starts the drying and mildew-removing function:
if the continuous operation time length of the air conditioner in the refrigeration or dehumidification mode is longer than the first preset time length or the accumulated operation time length is longer than the second preset time length, the air conditioner is controlled to start the drying and mildew removing functions.
7. An air conditioner, characterized in that the air conditioner performs the air conditioner control method according to any one of claims 6.
8. An air conditioner, characterized in that the air conditioner comprises: a computer-readable storage medium storing a computer program and a packaged IC, the computer program, when read and executed by the packaged IC, implementing the air conditioner control method according to any one of claims 1 to 6.
CN202210564646.7A 2022-05-23 2022-05-23 Air conditioner control method and air conditioner Active CN114838451B (en)

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WO2019041541A1 (en) * 2017-09-04 2019-03-07 海尔集团公司 Control method and apparatus for self-cleaning of air conditioner, and air conditioner
CN111692727A (en) * 2020-03-13 2020-09-22 广东美的制冷设备有限公司 Air conditioner and sterilization control method thereof
CN114183880A (en) * 2021-12-22 2022-03-15 宁波奥克斯电气股份有限公司 Mildew-proof control method and air conditioner

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Publication number Priority date Publication date Assignee Title
CN105240994A (en) * 2015-09-18 2016-01-13 广东美的制冷设备有限公司 Drying and mould-proof control method and device for air conditioner
WO2019041541A1 (en) * 2017-09-04 2019-03-07 海尔集团公司 Control method and apparatus for self-cleaning of air conditioner, and air conditioner
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