CN113606728B - Air conditioner and control method thereof - Google Patents

Air conditioner and control method thereof Download PDF

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Publication number
CN113606728B
CN113606728B CN202110846411.2A CN202110846411A CN113606728B CN 113606728 B CN113606728 B CN 113606728B CN 202110846411 A CN202110846411 A CN 202110846411A CN 113606728 B CN113606728 B CN 113606728B
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air conditioner
temperature
current
humidity
preset value
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CN113606728A (en
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王文洁
应必业
原惠惠
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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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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/56—Remote control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/86—Control 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/88—Electrical aspects, e.g. circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F24F2110/12—Temperature of the outside air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/20—Humidity
    • F24F2110/22—Humidity of the outside air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/20—Heat-exchange fluid temperature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Thermal Sciences (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention provides an air conditioner and a control method thereof, comprising the following steps: when the air conditioner operates in a refrigerating mode, acquiring the current indoor environment temperature, the set temperature, the outdoor environment humidity in the current meteorological data and the current indoor heat exchanger coil temperature at intervals; acquiring the current dew point temperature according to the current indoor environment temperature and the outdoor environment humidity in the current meteorological data; judging the magnitude relation between the current indoor environment temperature and the set temperature and the outdoor environment humidity; and controlling the humidity of the air conditioner according to the judgment result, the current temperature of the coil of the indoor heat exchanger and the current dew point temperature. According to the air conditioner and the control method thereof, a humidity sensor does not need to be additionally arranged, the accurate regulation and control of the humidity are realized by utilizing the networking function of the air conditioner, the comfort requirement of a user in a high-humidity refrigeration scene can be met, and the cost can be saved.

Description

Air conditioner and control method thereof
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner and a control method thereof.
Background
The air conditioner serving as indoor conditioning equipment of a room can well meet the requirement of people on temperature comfort, but the comfort of the room only by ensuring the temperature of the room is more and more difficult to meet the requirement of the comfort of the people.
In order to effectively control the humidity, the current air conditioner needs to accurately obtain the room humidity, and the humidity obtaining is usually realized by adding a humidity sensor, and the adding of the humidity sensor is not only costly but also has complex humidity control logic, which undoubtedly increases the cost of the air conditioner.
Based on this, the present invention was devised.
Disclosure of Invention
The invention solves the problem that the existing air conditioner has high humidity control cost by adding a humidity sensor.
In order to solve the above problems, an object of the present invention is to provide a control method for an air conditioner, which does not need to add a humidity sensor, and utilizes a networking function of the air conditioner to realize accurate regulation and control of humidity, so as to not only meet a comfort requirement of a user in a high-humidity refrigeration scene, but also save cost.
The second objective of the invention is to provide an air conditioner.
A third object of the invention is to propose a computer-readable storage medium.
In order to achieve the above object, a control method for an air conditioner according to an embodiment of a first aspect of the present invention includes the steps of: when the air conditioner operates in a refrigerating mode, acquiring the current indoor environment temperature, the set temperature, the outdoor environment humidity in the current meteorological data and the current indoor heat exchanger coil temperature at intervals; acquiring the current dew point temperature according to the current indoor environment temperature and the outdoor environment humidity in the current meteorological data; judging the magnitude relation between the current indoor environment temperature and the set temperature and the outdoor environment humidity; and controlling the humidity of the air conditioner according to the judgment result, the current temperature of the coil of the indoor heat exchanger and the current dew point temperature.
According to the control method of the air conditioner, the current indoor environment temperature and the outdoor environment humidity in the current meteorological data are obtained, then the humidity of the air conditioner is controlled according to the current dew point temperature, the current indoor heat exchanger coil temperature, the magnitude relation between the current indoor environment temperature and the set temperature and the outdoor environment humidity, a humidity sensor is not needed to be additionally arranged, the networking function of the air conditioner is utilized to realize accurate regulation and control of the humidity, the comfort requirement of a user in a refrigeration high-humidity scene can be met, and the cost can be saved.
In addition, the control method of the air conditioner according to the above embodiment of the present invention may further have the following additional technical features:
further, according to the judgment result, the current indoor heat exchanger coil temperature and the current dew point temperature, the humidity control of the air conditioner comprises the following steps: if the current indoor environment temperature is close to the set temperature and the outdoor environment humidity is not smaller than a first preset value, adjusting the frequency of a compressor according to the magnitude relation between the current indoor heat exchanger coil temperature and the current dew point temperature to control the humidity of the air conditioner; if the current indoor environment temperature is close to the set temperature and the outdoor environment humidity is smaller than a first preset value, controlling the air conditioner to keep a current running state; and if the current indoor environment temperature is not close to the set temperature, controlling the air conditioner to keep the current running state. Therefore, the control method of the air conditioner provided by the embodiment of the invention can be used for controlling the humidity of the air conditioner only when the current indoor environment temperature is close to the set temperature and the outdoor environment humidity is high, so that the design can not only ensure that the requirement of a user on temperature comfort is met in advance, but also realize effective control on the humidity, and meanwhile, the cost is low.
Further, controlling the air conditioner to maintain the current operation state means controlling a compressor of the air conditioner to operate according to a rule formulated by the current indoor ambient temperature and the set temperature. At this time, the air conditioner does not perform the high frequency humidity control adjustment of the present invention.
Further, adjusting the frequency of the compressor according to the magnitude relation between the current indoor heat exchanger coil temperature and the current dew point temperature to control the humidity of the air conditioner, comprising: if the difference value between the current dew point temperature and the current indoor heat exchanger coil temperature is smaller than a second preset value, the fact that the indoor heat exchanger coil temperature is higher at the moment is indicated, the air conditioner is low in dehumidification speed and efficiency, the frequency of the compressor needs to be controlled to be increased, the current indoor heat exchanger coil temperature is reduced, the difference value between the dew point temperature and the indoor heat exchanger coil temperature is enlarged, the dehumidification capacity is increased, the dehumidification speed and the dehumidification efficiency are improved, and the indoor humidity is rapidly reduced; if the difference between the current dew point temperature and the current indoor heat exchanger coil temperature is not less than a second preset value, the fact that the dehumidification speed and the dehumidification efficiency of the air conditioner can meet the requirement for rapidly reducing indoor humidity at the moment is shown, the frequency of the compressor does not need to be actively increased, and therefore the air conditioner is controlled to keep the current running state. Therefore, the control method of the air conditioner provided by the embodiment of the invention can control the frequency of the compressor to rise only when the difference between the current dew point temperature and the current temperature of the coil of the indoor heat exchanger is smaller than a second preset value, and under other conditions, the dehumidification speed and the dehumidification efficiency of the air conditioner can meet the requirement of rapidly reducing the indoor humidity without actively increasing the frequency of the compressor, so that the air conditioner can continuously keep the current running state, and the low-cost and high-efficiency humidity control can be realized.
Further, if the difference between the current dew point temperature and the current indoor heat exchanger coil temperature is not smaller than a second preset value and not larger than a third preset value, the frequency of the compressor is prohibited from being reduced, wherein the second preset value is smaller than the third preset value, and therefore the frequency of the compressor can be actively adjusted to be higher and higher without actively adjusting the frequency of the compressor to keep the air conditioner in the current running state, the dehumidification speed and efficiency of the air conditioner are improved, the indoor humidity is expected to be rapidly reduced, but the frequency of the compressor cannot be adjusted to be lower, and the dehumidification speed and efficiency of the air conditioner are prevented from being reduced.
Further, if the difference between the current dew point temperature and the current temperature of the coil of the indoor heat exchanger is greater than a third preset value, the frequency of the compressor can be reduced, wherein the second preset value is less than the third preset value, the design is designed to prevent the air conditioner from frequently reaching the temperature, and after all, the humidity control effect of the air conditioner is very strong, so that the humidity of a room is possibly too low, and therefore the humidity control effect of the air conditioner can be properly reduced according to actual conditions, so that the indoor humidity is maintained at a reasonable level, and the normal work of the air conditioner is ensured.
Further, the second preset value is 3 ℃ and the third preset value is 5 ℃.
Further, the first preset value is 70%.
To achieve the above object, an air conditioner according to an embodiment of the second aspect of the present invention includes a computer-readable storage medium storing a computer program and a processor, where the computer program is read by the processor and executed by the processor to implement the method for controlling the air conditioner according to the embodiment of the first aspect of the present invention.
According to the air conditioner provided by the embodiment of the invention, a humidity sensor does not need to be additionally arranged, the networking function of the air conditioner is utilized to realize accurate regulation and control of the humidity, the comfort requirement of a user in a refrigeration high-humidity scene can be met, and the cost can be saved.
To achieve the above object, a computer-readable storage medium according to a third aspect of the present invention has instructions stored therein, and when the instructions are executed, the air conditioner performs the control method of the air conditioner according to the first aspect of the present invention.
The computer-readable storage medium of the embodiment of the invention can enable the air conditioner to realize accurate regulation and control of humidity by utilizing the networking function of the air conditioner without additionally arranging a humidity sensor, thereby not only meeting the comfort requirement of a user in a refrigeration high-humidity scene, but also saving cost.
Drawings
Fig. 1 is a flowchart of a control method of an air conditioner according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a method for controlling an air conditioner according to an embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Fig. 1 is a flowchart of a control method of an air conditioner according to an embodiment of the present invention.
As shown in fig. 1, the method for controlling an air conditioner according to an embodiment of the present invention includes the following steps:
s1, when the air conditioner operates in a refrigerating mode, the current indoor environment temperature, the set temperature, the outdoor environment humidity in the current meteorological data and the current indoor heat exchanger coil temperature are obtained at intervals.
Since the indoor ambient temperature, the outdoor ambient humidity, and the indoor heat exchanger coil temperature are constantly changing, and the set temperature may also be changing (if the user frequently operates the remote controller to adjust the set temperature), in order to enable the air conditioner to accurately control humidity, the current latest indoor ambient temperature, outdoor ambient humidity, indoor heat exchanger coil temperature, and set temperature need to be obtained at intervals (for example, 2 minutes).
In this embodiment, the obtaining of the outdoor environment humidity in the weather data is realized by connecting the air conditioner to the internet, so that the air conditioner can obtain real-time weather data through the internet when being started, and the weather data includes the environment humidity, that is, the outdoor environment humidity in the embodiment of the present invention.
And S2, acquiring the current dew point temperature according to the current indoor environment temperature and the outdoor environment humidity in the current meteorological data.
In one embodiment of the invention, the dew point temperature is calculated by the following equation: t is Dew point ＝T Inner ring +32.8Φ 3 -82.13Φ 2 +89.384 Φ -39.6 wherein T Dew point Dew point temperature, T Inner ring Is the indoor ambient temperature and phi is the outdoor ambient humidity.
And S3, judging the magnitude relation between the current indoor environment temperature and the set temperature and the outdoor environment humidity.
Judging the magnitude relation between the current indoor environment temperature and the set temperature, namely judging whether the current indoor environment temperature is close to the set temperature, if the current indoor environment temperature and the set temperature are close to each other, the indoor environment temperature basically reaches the set temperature, and considering to carry out the high-frequency humidity control regulation of the invention, otherwise, the indoor environment temperature is higher, the high-frequency humidity control regulation of the invention can not be carried out temporarily, after all, the air conditioner firstly needs to ensure good refrigeration effect, and then carries out the high-frequency humidity control regulation of the invention on the basis.
In one embodiment of the present invention, the proximity criterion is that the difference between the indoor ambient temperature and the set temperature does not exceed 1 ℃, although in other embodiments, the proximity criterion may be set to other values such as 0.8 ℃, 0.7 ℃ or 1.1 ℃.
The judgment of the outdoor environment humidity is to judge whether the humidity is smaller than a first preset value, if so, the outdoor environment humidity is not large, and the high-frequency humidity control regulation of the invention is not needed by the air conditioner, otherwise, the outdoor environment humidity is large, and the high-frequency humidity control regulation of the invention is needed by the air conditioner.
In one embodiment of the present invention, the first preset value is 70%, and in other embodiments, the first preset value may also be 65%, 71%, or other values.
And S4, controlling the humidity of the air conditioner according to the judgment result, the current coil temperature of the indoor heat exchanger and the current dew point temperature.
If the current indoor environment temperature is close to the set temperature and the outdoor environment humidity is not less than a first preset value, it is indicated that the indoor temperature is reached and the humidity is relatively high, and dehumidification operation is required, at this time, the frequency of the compressor is adjusted according to the magnitude relation between the current indoor heat exchanger coil temperature and the current dew point temperature to control the humidity of the air conditioner, and the method specifically comprises the following steps:
1. if the difference value between the current dew point temperature and the current indoor heat exchanger coil temperature is smaller than a second preset value, the fact that the indoor heat exchanger coil temperature is higher at the moment is indicated, the air conditioner is low in dehumidification speed and efficiency, the frequency of the compressor needs to be controlled to be increased, the current indoor heat exchanger coil temperature is reduced, the difference value between the dew point temperature and the indoor heat exchanger coil temperature is enlarged, the dehumidification capacity is increased, the dehumidification speed and the dehumidification efficiency are improved, and the indoor humidity is expected to be rapidly reduced.
2. If the difference value between the current dew point temperature and the current temperature of the coil of the indoor heat exchanger is not smaller than a second preset value, the dehumidification speed and the dehumidification efficiency of the air conditioner can meet the requirement of rapidly reducing the indoor humidity at the moment, the frequency of the compressor does not need to be actively increased, and therefore the air conditioner is controlled to keep the current running state.
If the current indoor environment temperature is close to the set temperature and the outdoor environment humidity is smaller than a first preset value, the outdoor environment humidity is not large, the frequency of the compressor does not need to be actively increased, and at the moment, the air conditioner is controlled to keep the current running state.
If the current indoor environment temperature is not close to the set temperature, the current indoor environment temperature is higher, the high-frequency humidity control adjustment cannot be performed temporarily, and a period of time needs to be waited, so that the air conditioner is controlled to keep the current running state.
In this embodiment, controlling the air conditioner to maintain the current operation state means controlling a compressor of the air conditioner to operate according to a rule formulated by the current indoor ambient temperature and the set temperature. The air conditioner does not perform the high frequency humidity control adjustment of the present invention.
Further, in this embodiment, if the difference between the current dew point temperature and the current temperature of the coil of the indoor heat exchanger is not smaller than a second preset value and not larger than a third preset value, and the second preset value is smaller than the third preset value, the frequency of the compressor is prohibited from decreasing, that is, the frequency of the compressor may not be actively adjusted at this moment to keep the air conditioner in the current operating state, and the frequency of the compressor may also be actively increased to enhance the dehumidification speed and efficiency of the air conditioner, so as to rapidly decrease the indoor humidity, but the frequency of the compressor cannot be decreased, thereby avoiding the decrease in the dehumidification speed and efficiency of the air conditioner.
Further, in this embodiment, if the difference between the current dew point temperature and the current indoor heat exchanger coil temperature is greater than a third preset value, the frequency of the compressor may be decreased, that is, the frequency of the compressor may not be actively adjusted at this time, so that the air conditioner may maintain the current operating state, or the frequency of the compressor may be actively decreased.
In one embodiment of the present invention, the second preset value is 3 ℃ and the third preset value is 5 ℃.
In an embodiment of the present invention, as shown in fig. 2, the control method of the air conditioner may include the steps of:
and S101, starting the air conditioner.
And S102, starting a refrigeration high-frequency humidity control function. If the function is not started, the compressor of the air conditioner operates according to the rule set by the current indoor environment temperature and the set temperature, and the high-frequency humidity control regulation is not carried out.
And S103, refrigerating for 5min. Because the indoor environment temperature is not close to the set temperature when the air conditioner is just started to operate, the high-frequency humidity control adjustment cannot be carried out, and the air conditioner needs to be refrigerated for a period of time.
S104，T Inner ring -T Setting up ＞1℃。T Inner ring Indicating the indoor ambient temperature, T Setting up Setting temperature, refrigerating for 5minIf the temperature difference is more than 1 ℃, the temperature difference is not close to the temperature difference, otherwise, the temperature difference is close to the temperature difference, and the next step can be carried out; if the temperatures are not close to each other, the process returns to step S103.
And S105, the WIFI signal humidity is less than 70%.70% is first default, and the air conditioner of this embodiment obtains the outdoor environment humidity in the meteorological data through WIFI. If the outdoor environment humidity is smaller than the first preset value, it indicates that the indoor humidity is lower after refrigeration, and the high-frequency humidity control regulation of the invention is not needed, and the step S103 is returned; if the humidity of the outdoor environment is not less than the first preset value, which indicates that the humidity is high, high-frequency humidity control adjustment is needed, and the next step can be carried out.
S106, monitoring T Inner disc temperature Intelligent calculation of T Dew point temperature 。T Dew point temperature The calculation method of (2) is the same as that of the foregoing embodiment. Then according to T Inner disc temperature And T Dew point temperature The air conditioner is controlled by adjusting the frequency of the compressor according to the magnitude relation between the air conditioner and the compressor, T Inner disc temperature And T Dew point temperature The magnitude relationship between them is divided into three kinds, i.e., S107, S109, and S111.
S107，T Dew point -T Inner disc Is less than 3 ℃. The temperature of 3 ℃ is a second preset value, and at the moment, the temperature of the coil pipe of the indoor heat exchanger is higher, and high-frequency humidity control is needed.
And S108, increasing the frequency of the compressor to 3Hz. The frequency of the compressor is increased by 3Hz actively, so that the temperature of the coil pipe of the indoor heat exchanger is reduced, the dehumidification capacity is increased, the dehumidification speed and efficiency are improved, and the indoor humidity is reduced rapidly.
S109，3℃≤T Dew point -T Inner disc Less than or equal to 5 ℃.3 ℃ is the second preset value and 5 ℃ is the third preset value.
And S110, controlling and calculating the frequency according to the normal frequency, but forbidding frequency reduction. Because the dehumidification speed and the dehumidification efficiency of the air conditioner can meet the requirement of quickly reducing the indoor humidity, the frequency of the compressor can be not actively adjusted, the air conditioner is enabled to keep the current running state, and certainly, the frequency of the compressor can also be actively increased, so that the dehumidification speed and the dehumidification efficiency of the air conditioner are enhanced, the indoor humidity is expected to be quickly reduced, but the frequency of the compressor cannot be reduced, and the dehumidification speed and the dehumidification efficiency of the air conditioner are prevented from being reduced.
S111，T Dew point -T Inner disc Is greater than 5 ℃.5 ℃ is the third preset value.
And S112, controlling and calculating the frequency according to the normal frequency, and reducing the frequency. Because the air conditioner dehumidification speed and efficiency can satisfy the requirement of reducing indoor humidity fast at this moment, consequently can not initiatively adjust the frequency of compressor lets the air conditioner keeps current running state, of course, also can initiatively reduce the frequency of compressor, because indoor heat exchanger coil pipe temperature is lower this moment, the air conditioner dehumidification speed is fast, efficient, the air conditioner easily frequently reaches the temperature, and probably makes room humidity hang down, so in order to avoid appearing above-mentioned problem, can suitably reduce the frequency of compressor, reduce air conditioner accuse wet effect then to maintain indoor humidity at reasonable level and make the air conditioner normally work.
And S113, judging the period before quitting. That is, after finishing the high-frequency humidity control adjustment, the high-frequency humidity control adjustment is waited for 2min, and then the high-frequency humidity control adjustment of the invention is continued from the step S104, because the indoor environment temperature, the outdoor environment humidity and the indoor heat exchanger coil temperature are changed all the time, in order to enable the air conditioner to accurately control humidity, the high-frequency humidity control adjustment of the invention is needed to be carried out every 2 min.
And S114, exiting the refrigeration high-frequency humidity control function. After exiting, the air conditioner does not circulate to perform the high-frequency humidity control regulation of the invention.
And S115, normal refrigeration operation is carried out. That is, the compressor of the air conditioner will be operated in a rule formulated according to the current indoor ambient temperature and the set temperature.
And S116, shutting down the air conditioner.
In summary, according to the control method of the air conditioner in the embodiment of the present invention, the current dew point temperature is obtained by obtaining the current indoor environment temperature and the outdoor environment humidity in the current meteorological data, and then the humidity of the air conditioner is controlled according to the magnitude relationship between the current dew point temperature and the current indoor heat exchanger coil temperature, the current indoor environment temperature and the set temperature, and the outdoor environment humidity, without adding a humidity sensor, the precise regulation and control of the humidity is realized by using the wifi function of the air conditioner, so that the comfort requirement of a user in a high-humidity refrigeration scene can be met, and the cost can be saved.
Corresponding to the embodiment, the invention further provides an air conditioner.
The air conditioner provided by the embodiment of the invention comprises a computer readable storage medium and a processor, wherein the computer readable storage medium stores a computer program, and the computer program is read by the processor and runs to realize the control method of the air conditioner provided by the embodiment of the invention.
According to the air conditioner provided by the embodiment of the invention, a humidity sensor does not need to be additionally arranged, the accurate regulation and control of the humidity are realized by utilizing the wifi function of the air conditioner, the comfort requirement of a user in a refrigeration high-humidity scene can be met, and the cost can be saved.
The invention further provides a computer readable storage medium corresponding to the above embodiment.
The computer-readable storage medium of an embodiment of the present invention has instructions stored therein, which when executed, the air conditioner performs the control method of the air conditioner proposed by the above-described embodiment of the present invention.
The computer-readable storage medium of the embodiment of the invention can enable the air conditioner to realize accurate regulation and control of humidity by using the wifi function of the air conditioner without additionally arranging a humidity sensor, thereby not only meeting the comfort requirement of a user in a refrigeration high-humidity scene, but also saving cost.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (9)

1. A method of controlling an air conditioner, comprising:
when the air conditioner operates in a refrigerating mode, acquiring the current indoor environment temperature, the set temperature, the outdoor environment humidity in the current meteorological data and the current indoor heat exchanger coil temperature at intervals;
acquiring the current dew point temperature according to the current indoor environment temperature and the outdoor environment humidity in the current meteorological data;
judging the magnitude relation between the current indoor environment temperature and the set temperature and the outdoor environment humidity;
according to the judgment result, the current indoor heat exchanger coil temperature and the current dew point temperature, the humidity of the air conditioner is controlled, and the method comprises the following steps:
if the current indoor environment temperature is close to the set temperature and the outdoor environment humidity is not smaller than a first preset value, adjusting the frequency of a compressor according to the magnitude relation between the current indoor heat exchanger coil temperature and the current dew point temperature to control the humidity of the air conditioner;
if the current indoor environment temperature is close to the set temperature and the outdoor environment humidity is smaller than a first preset value, controlling the air conditioner to keep a current running state;
and if the current indoor environment temperature is not close to the set temperature, controlling the air conditioner to keep the current running state.
2. The control method of an air conditioner according to claim 1, wherein the controlling of the air conditioner to maintain the current operation state means controlling a compressor of the air conditioner to operate according to a rule formulated according to the current indoor ambient temperature and the set temperature.
3. The method of controlling an air conditioner according to claim 2, wherein adjusting the frequency of the compressor according to the magnitude relationship between the current indoor heat exchanger coil temperature and the current dew point temperature to perform humidity control of the air conditioner comprises:
if the difference value between the current dew point temperature and the current indoor heat exchanger coil temperature is smaller than a second preset value, controlling the frequency of the compressor to rise, and reducing the current indoor heat exchanger coil temperature;
and if the difference value between the current dew point temperature and the current temperature of the coil of the indoor heat exchanger is not less than a second preset value, controlling the air conditioner to keep the current running state.
4. The control method of an air conditioner according to claim 3, wherein if the difference between the current dew point temperature and the current indoor heat exchanger coil temperature is neither less than a second preset value nor more than a third preset value, wherein the second preset value is less than the third preset value, the frequency of the compressor is prohibited from being lowered.
5. The control method of an air conditioner according to claim 3, wherein the frequency of the compressor can be decreased if the difference between the current dew point temperature and the current indoor heat exchanger coil temperature is greater than a third preset value, wherein the second preset value is less than the third preset value.
6. The control method of an air conditioner according to claim 4, wherein the second preset value is 3 ℃ and the third preset value is 5 ℃.
7. The control method of an air conditioner according to claim 1, wherein the first preset value is 70%.
8. An air conditioner comprising a computer readable storage medium storing a computer program and a processor, the computer program being read and executed by the processor to implement the method of any one of claims 1 to 7.
9. A computer-readable storage medium having instructions stored therein, when the instructions are executed, the air conditioner performing the control method of the air conditioner according to any one of claims 1 to 7.
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CN104930656A (en) * 2015-06-12 2015-09-23 广东美的制冷设备有限公司 Air conditioner temperature and humidity double-control method and device and air conditioner indoor unit
CN104949270A (en) * 2015-06-12 2015-09-30 广东美的制冷设备有限公司 Refrigeration control method and device of air conditioner and air conditioner
CN106196472A (en) * 2016-07-25 2016-12-07 广东美的制冷设备有限公司 The temperature/humidity control method of air-conditioner and device
CN106225151A (en) * 2016-07-25 2016-12-14 广东美的制冷设备有限公司 Air-conditioner and temperature/humidity control method thereof
CN111473461A (en) * 2020-04-22 2020-07-31 宁波奥克斯电气股份有限公司 Dehumidification control method and device for air conditioner and air conditioner

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104930656A (en) * 2015-06-12 2015-09-23 广东美的制冷设备有限公司 Air conditioner temperature and humidity double-control method and device and air conditioner indoor unit
CN104949270A (en) * 2015-06-12 2015-09-30 广东美的制冷设备有限公司 Refrigeration control method and device of air conditioner and air conditioner
CN106196472A (en) * 2016-07-25 2016-12-07 广东美的制冷设备有限公司 The temperature/humidity control method of air-conditioner and device
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