CN111023456B - Control method and device for fresh air of air conditioner, air conditioner and storage medium - Google Patents

Control method and device for fresh air of air conditioner, air conditioner and storage medium Download PDF

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Publication number
CN111023456B
CN111023456B CN201911372747.9A CN201911372747A CN111023456B CN 111023456 B CN111023456 B CN 111023456B CN 201911372747 A CN201911372747 A CN 201911372747A CN 111023456 B CN111023456 B CN 111023456B
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air
temperature
fresh air
air conditioner
automatically started
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CN111023456A (en
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邓赛峰
刘合心
刘潘
王猛
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Ningbo Aux Electric Co Ltd
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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
    • F24F11/41—Defrosting; Preventing freezing
    • F24F11/42—Defrosting; Preventing freezing of outdoor units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/65—Electronic processing for selecting an operating mode
    • 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
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control 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
    • F24F11/77—Control 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
    • 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
    • F24F11/81—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the air supply to heat-exchangers or bypass channels
    • 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
    • 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)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Fluid Mechanics (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention provides a control method and a device of fresh air of an air conditioner, the air conditioner and a storage medium, and relates to the technical field of air conditioners, wherein the control method of the fresh air of the air conditioner comprises the following steps: when the air conditioner normally operates, acquiring the outdoor environment temperature, the indoor return air temperature and the set temperature of the air conditioner; judging the magnitude relation between the outdoor environment temperature and the indoor return air temperature according to the current operation mode of the air conditioner, and judging whether a fresh air system is automatically started or not; if the fresh air system is not automatically started, continuously judging the magnitude relation between the indoor return air temperature and the set temperature of the air conditioner, and continuously judging whether the fresh air system is automatically started or not; and after the fresh air system is automatically started, the gear of the wind shield operation of the air supply device in the fresh air system is controlled. The invention supplements outdoor fresh air for the room when the air conditioner normally operates, and simultaneously increases a fresh air mode, thereby being beneficial to improving the air quality in the room, avoiding long-time breathing of circulating air and reducing the occurrence of air conditioner diseases.

Description

Control method and device for fresh air of air conditioner, air conditioner and storage medium
Technical Field
The invention relates to the technical field of air conditioners, in particular to a method and a device for controlling fresh air of an air conditioner, the air conditioner and a storage medium.
Background
In modern society, air conditioners have become a household appliance necessary for home use, providing a comfortable indoor environment for users. Most of the current household air conditioners are split type air conditioners, air in a room is introduced into an air return opening after a fan of an indoor unit is started, the air after heat exchange is sent back to the room through an air outlet, and the air circulates like this, so that the purpose of adjusting the indoor air is achieved.
However, in order to achieve good air-conditioning cooling or heating effects, the doors and windows of the room are generally in a closed state, so that the air in the room is always in a closed cycle; the air is in the closed circulation state and then can reduce the air quality in the room, and easy bacterial growing produces the peculiar smell, and the time of having a long time can influence human health and travelling comfort, can let the human air conditioning disease even.
Disclosure of Invention
The invention solves the problem that in the existing air conditioner, for a good air conditioner refrigerating or heating effect, doors and windows are in a closed state, so that air is in closed circulation, and at least one aspect of air quality in a room is reduced, bacteria are bred, peculiar smell is generated, and the like is generated.
In order to solve the above problems, the present invention provides a method for controlling fresh air of an air conditioner, comprising: when the air conditioner normally operates, acquiring the outdoor environment temperature, the indoor return air temperature and the set temperature of the air conditioner; judging the magnitude relation between the outdoor environment temperature and the indoor return air temperature according to the current operation mode of the air conditioner, and judging whether a fresh air system is automatically started or not according to the magnitude relation between the outdoor environment temperature and the indoor return air temperature;
if the fresh air system is not automatically started, continuously judging the magnitude relation between the indoor return air temperature and the set temperature of the air conditioner, and continuously judging whether the fresh air system is automatically started or not according to the magnitude relation between the indoor return air temperature and the set temperature of the air conditioner;
and after the fresh air system is automatically started, controlling the gear of the wind shield operation of the air supply device in the fresh air system. Therefore, when the air conditioner operates, whether the fresh air system is automatically started or not is judged according to the outdoor environment temperature and the indoor return air temperature in different operation modes, if the fresh air system is not automatically started, whether the fresh air system is automatically started or not is continuously judged according to the indoor return air temperature and the set temperature in the current operation state of the air conditioner, after the fresh air system is started, air is supplied through an air supply device arranged in the fresh air system, and because the outdoor environment temperature, the indoor return air temperature and the set temperature in the current operation state are not used, the air supply gear of the air supply device needs to be controlled; therefore, when the air conditioner is in normal operation, outdoor fresh air is supplemented for the room, a fresh air mode is added, and the air quality in the room is improved.
Further, according to the current operating mode of the air conditioner, the outdoor environment temperature and the indoor return air temperature are judged, and according to the outdoor environment temperature and the indoor return air temperature, whether the fresh air system is automatically started or not is judged, and the method specifically comprises the following steps:
when the air conditioner is in a refrigeration mode and the outdoor environment temperature is less than or equal to the indoor return air temperature, the fresh air system is automatically started; otherwise, the fresh air system is not automatically started;
when the air conditioner is in a heating mode and the outdoor environment temperature is greater than or equal to the indoor return air temperature, the fresh air system is automatically started; otherwise, the fresh air system is not automatically started;
when the air conditioner is in an air supply mode and the absolute value of the difference between the outdoor environment temperature and the indoor return air temperature is smaller than a fourth preset temperature, the fresh air system is automatically started; otherwise, the fresh air system is not automatically started.
Therefore, the air conditioner can work in different running modes according to the outdoor environment temperature and the indoor return air temperature; and judging whether fresh air is needed in the room or not, and improving the air environment in the room, thereby determining whether the fresh air system is automatically started or not.
Furthermore, the air conditioner is in a refrigeration mode, the outdoor environment temperature is less than or equal to the indoor return air temperature, and then the fresh air system is automatically started to control the high wind gear of the air supply device to operate.
From this, confirm that the air conditioner has got into the refrigeration mode, and outdoor ambient temperature is less than or equal to indoor return air temperature, and the temperature in the room is higher than outdoor ambient temperature, so the new trend system is automatic to be opened, and carries out the high-wind-gear operation, provides a large amount of fresh air for indoor, ensures the quality of indoor air.
Furthermore, the air conditioner is in a heating mode, the outdoor environment temperature is greater than or equal to the indoor return air temperature, and then the fresh air system is automatically started to control the high wind gear of the air supply device to operate.
From this, confirm that the air conditioner has got into the mode of heating, and outdoor ambient temperature is greater than indoor return air temperature, and the temperature in the room is less than outdoor ambient temperature, so the new trend system is automatic to be opened, and carries out the high-wind-level operation, provides a large amount of fresh air for indoor, ensures the quality of indoor air.
Furthermore, when the air conditioner is in an air supply mode and the absolute value of the difference between the outdoor environment temperature and the indoor return air temperature is less than a fourth preset temperature, the fresh air system is automatically started,
when the absolute value of the difference between the outdoor environment temperature and the indoor return air temperature is less than or equal to a third preset temperature, the air supply device runs at a high wind gear;
when the absolute value of the difference between the outdoor environment temperature and the indoor return air temperature is smaller than the fourth preset temperature and larger than the third preset temperature, the air supply device operates at a low wind gear;
the third preset temperature is less than the fourth preset temperature.
Therefore, the air conditioner enters an air supply mode, and the air inlet quantity required indoors is judged according to the outdoor environment temperature and the indoor return air temperature; thereby ensure indoor air quality and guarantee user's comfort level again promptly.
Further, if the fresh air system is not automatically started, the magnitude relation between the indoor return air temperature and the set temperature of the air conditioner is continuously judged, and whether the fresh air system is automatically started or not is continuously judged according to the magnitude relation between the indoor return air temperature and the set temperature of the air conditioner; after the automation of new trend system is opened, control the gear of air supply arrangement's in the new trend system wind gear operation specifically includes:
in the cooling mode, the air conditioner is operated,
when the indoor return air temperature is greater than or equal to the sum of the set temperature of the air conditioner and a first preset temperature, the fresh air system is not automatically started;
when the indoor return air temperature is lower than the sum of the set temperature of the air conditioner and the first preset temperature and higher than the set temperature of the air conditioner, the fresh air system is automatically started; after the fresh air system is automatically started, the operation of the air supply device at a low wind gear is controlled;
when the indoor return air temperature is less than or equal to the set temperature of the air conditioner, the fresh air system is automatically started; and after the fresh air system is automatically started, the high-wind-level operation of the air supply device is controlled.
Therefore, whether outdoor fresh air needs to be introduced into a room or not is judged according to the indoor return air temperature and the set temperature of the air conditioner, and the temperature fluctuation in the room is ensured to be small after the outdoor fresh air is introduced, so that the air inlet quantity of the fresh air system is controlled.
Further, if the fresh air system is not automatically started, the magnitude relation between the indoor return air temperature and the set temperature of the air conditioner is continuously judged, and whether the fresh air system is automatically started or not is continuously judged according to the magnitude relation between the indoor return air temperature and the set temperature of the air conditioner; after the automation of new trend system is opened, control the gear of air supply arrangement's in the new trend system wind gear operation still includes:
in the heating mode, the heating device is arranged,
when the indoor return air temperature is less than or equal to the difference between the set temperature of the air conditioner and a second preset temperature, the fresh air system is not automatically started;
when the indoor return air temperature is lower than the set temperature of the air conditioner and higher than the difference between the set temperature of the air conditioner and the second preset temperature, the fresh air system is automatically started; after the fresh air system is automatically started, the operation of the air supply device at a low wind gear is controlled;
when the indoor return air temperature is greater than or equal to the set temperature of the air conditioner, the fresh air system is automatically started; and after the fresh air system is automatically started, the high-wind-level operation of the air supply device is controlled.
Therefore, whether outdoor fresh air needs to be introduced into a room or not is judged according to the indoor return air temperature and the set temperature of the air conditioner, and the temperature fluctuation in the room is ensured to be small after the outdoor fresh air is introduced, so that the air inlet quantity of the fresh air system is controlled.
Further, still include the defrosting mode, specifically include:
in the heating mode, the fresh air system is in a closed state;
acquiring the temperature of a coil of an outdoor unit heat exchanger, and judging whether the fresh air system is automatically started or not according to the temperature of the coil of the outdoor unit heat exchanger; and after the fresh air system is automatically started, the gear of the wind shield operation of the air supply device is controlled.
Therefore, in the heating mode, the indoor air quality can be maintained, the outdoor heat exchanger can be defrosted, and the indoor heating comfort level is improved.
Further, whether the fresh air system is automatically started or not is judged according to the temperature of a coil of the outdoor unit heat exchanger; after the new trend system is automatic to be opened, control the gear of air supply arrangement's wind shelves operation includes:
when the temperature of the coil pipe is higher than a fifth preset temperature, the fresh air system keeps a closed state;
when the temperature of the coil pipe is higher than a sixth preset temperature and lower than a fifth preset temperature, the fresh air system is automatically started; after the fresh air system is started, the air supply device is controlled to operate in a reverse low wind gear;
when the temperature of the coil pipe is less than or equal to a sixth preset temperature, the fresh air system is automatically started; and after the fresh air system is started, the reverse high wind gear operation of the air supply device is controlled.
Therefore, whether the coil of the outdoor heat exchanger frosts in the frosting season is judged; thereby controlling the fresh air system from different frosting degrees; not only can promote the heating effect of heat exchanger, can also promote user's comfort level.
And further, when the temperature of the coil pipe is higher than the fifth preset temperature and the running time of the fresh air system is higher than the first preset time, the fresh air system is closed.
Therefore, after the fresh air system operates for more than the first preset time, the fresh air system is closed, and the air supply device stops operating so as to avoid redundant energy loss.
And further, when the temperature of the coil pipe is higher than the fifth preset temperature and the running time of the fresh air system is higher than the first preset time, the fresh air system is closed. Therefore, the heat leakage of the room or the entry of mosquitoes and other insects into the room through the fresh air pipe is prevented.
Compared with the prior art, the control method of the fresh air of the air conditioner has the advantages that the control method of the fresh air of the air conditioner can effectively supplement outdoor fresh air for a room when the air conditioner normally operates, and meanwhile, a fresh air mode is added, so that the improvement of the air quality in the room is facilitated, the circulating air is prevented from being breathed for a long time, and the occurrence of air conditioner diseases can be reduced.
In order to solve the above technical problems, the present invention also provides a control device of an air conditioner, comprising,
the system comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is used for acquiring the outdoor environment temperature, the indoor return air temperature and the set temperature of the air conditioner;
the calculating unit is used for judging the magnitude relation between the outdoor environment temperature and the indoor return air temperature;
the computing unit is also used for judging the magnitude relation between the indoor return air temperature and the set temperature of the air conditioner;
the computing unit is also used for judging whether the fresh air system is automatically started or not;
the control unit is used for controlling the fresh air system to be automatically started;
the control unit is also used for controlling the gear of the wind shield operation of the air supply device in the fresh air system.
Therefore, the control device is used for obtaining the outdoor environment temperature, the indoor return air temperature and the set temperature of the air conditioner; therefore, whether the fresh air system is automatically started or not is judged through the computing unit; therefore, the fresh air system is controlled to be started, so that fresh air is introduced into a room, and the air quality in the room is improved.
Compared with the prior art, the advantages of the control device of the air conditioner provided by the invention are the same as those of the control method of the fresh air of the air conditioner, and are not repeated herein.
In order to solve the technical problem, the present invention further provides an air conditioner, including a computer readable storage medium storing a computer program and a processor, where the computer program is read by the processor and executed to implement the control method of fresh air for an air conditioner as described above.
Therefore, outdoor fresh air can be effectively supplemented for the room when the air conditioner operates normally, meanwhile, a fresh air mode is added, the improvement of the air quality in the room is facilitated, the circulating air is prevented from being breathed for a long time, and the occurrence of air conditioner diseases can be reduced.
Further, the indoor unit, the outdoor unit and the fresh air system are included; the fresh air system comprises a fresh air pipeline, and two ends of the fresh air pipeline are respectively connected with the indoor unit and the outdoor unit; the fresh air pipeline is sequentially connected with an air supply outlet, a first filter, an air supply device, a valve, a second filter and an air supply nozzle from the indoor unit to the outdoor unit.
Compared with other advantages of the prior art, the air conditioner has the same advantages as the control method of the fresh air of the air conditioner has in the prior art, and is not described herein again.
In order to solve the technical problem, the present invention further provides a computer-readable storage medium, where a computer program is stored, and when the computer program is read and executed by a processor, the method for controlling fresh air of an air conditioner is implemented.
The advantages of the computer-readable storage medium of the present invention over the prior art are the same as the advantages of the control method of fresh air of an air conditioner over the prior art, and are not described herein again.
Drawings
FIG. 1 is a first flowchart of a method for controlling fresh air of an air conditioner according to an embodiment of the present invention;
FIG. 2 is a second specific flowchart of a method for controlling fresh air of an air conditioner according to an embodiment of the present invention;
FIG. 3 is a flowchart illustrating a third step in the cooling mode according to an embodiment of the present invention;
FIG. 4 is a detailed flowchart of a third step in the heating mode according to the embodiment of the present invention;
fig. 5 is a detailed flowchart of the defrosting mode in the heating mode according to the embodiment of the present invention;
FIG. 6 is a third specific flowchart of a control method for fresh air of an air conditioner in the embodiment of the present invention;
FIG. 7 is a schematic view of a normal operation mode of a fresh air system of the air conditioner according to an embodiment of the present invention;
fig. 8 is a schematic diagram of a defrosting mode of a fresh air system of an air conditioner in an embodiment of the invention.
Description of reference numerals:
1-indoor unit, 2-outdoor unit, 11-indoor unit air outlet, 21-outdoor unit air outlet, 31-fresh air pipeline, 32-air supply outlet, 33-first filter, 34-air supply device, 35-valve, 36-second filter and 37-air supply nozzle.
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.
In the description of the present invention, it is to be understood that the terms "first", "second" … … "sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first", "second" … … "sixth" may explicitly or implicitly include at least one of the feature. The description of the term "some embodiments" means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. Throughout this specification, the schematic representations of the terms used above do not necessarily refer to the same implementation or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
As shown in fig. 1 to 6, an embodiment of the present invention provides a method for controlling fresh air of an air conditioner, including: s1, when the air conditioner normally operates, acquiring outdoor ambient temperature T _ ao and indoor return air temperature T _ ai;
s2, judging the size relation between the outdoor environment temperature T _ ao and the indoor return air temperature T _ ai according to the current operation mode of the air conditioner, and judging whether the fresh air system is automatically started or not according to the size relation between the outdoor environment temperature T _ ao and the indoor return air temperature T _ ai; the method specifically comprises the following steps:
s21, when the air conditioner is in a refrigeration mode and the outdoor environment temperature T _ ao is less than or equal to the indoor return air temperature T _ ai, automatically starting the fresh air system; otherwise, the fresh air system is not automatically started.
After the fresh air system is automatically started, the high-wind-gear operation of the air supply device 34 is controlled. Therefore, the air conditioner is confirmed to enter a refrigeration mode, the outdoor environment temperature T _ ao is less than or equal to the indoor return air temperature, and the temperature in the room is higher than the outdoor environment temperature T _ ao, so that the fresh air system is automatically started, high-wind-level operation is performed, a large amount of fresh air is provided for the room, and the quality of the indoor air is guaranteed.
S22, when the air conditioner is in a heating mode and the outdoor environment temperature T _ ao is greater than or equal to the indoor return air temperature T _ ai, automatically starting the fresh air system; otherwise, the fresh air system is not automatically started.
After the fresh air system is automatically started, the high-wind-gear operation of the air supply device 34 is controlled. Therefore, the air conditioner is confirmed to enter a heating mode, the outdoor environment temperature T _ ao is larger than the indoor return air temperature, and the temperature in the room is lower than the outdoor environment temperature T _ ao, so that the fresh air system is automatically started, high-wind-level operation is performed, a large amount of fresh air is provided for the room, and the quality of the indoor air is guaranteed.
S23, when the air conditioner is in an air supply mode and the outdoor environment temperature T _ ao-indoor return air temperature T _ ai is less than a fourth preset temperature X4, automatically starting a fresh air system; on the contrary, | the outdoor environment temperature T _ ao-the indoor return air temperature T _ ai | is greater than or equal to the fourth preset temperature X4, the fresh air system is not automatically started, and because the temperature difference between the inside and the outside of the room is large, the fresh air system is not suitable to be started at this time, so that the cold of the personnel in the room or the discomfort of the body are avoided.
When the air conditioner is in an air supply mode, and the outdoor environment temperature T _ ao-indoor return air temperature T _ ai is less than a fourth preset temperature X4, the fresh air system is automatically started, and the method specifically comprises the following steps:
s231, when the outdoor environment temperature T _ ao and the indoor return air temperature T _ ai are less than or equal to a third preset temperature X3, the air supply device 34 runs in a high wind gear; at this time, the temperature inside and outside the room is considered to be the same, so the blower 34 of the fresh air system starts the high-wind-level operation.
S232, when the outdoor ambient temperature T _ ao and the indoor return air temperature T _ ai are less than a fourth preset temperature X4 and greater than a third preset temperature X3, the air supply device 34 runs in a low wind gear; at this time, the temperatures inside and outside the room are considered to be relatively close, so the air supply device 34 of the fresh air system starts to operate in a low wind gear.
The third preset temperature X3 is less than the fourth preset temperature X4.
Preferably, the third preset temperature X3 is within the range of: 1-4 ℃; preferably, the third preset temperature X3 is in the range of: 1-3 ℃; the range of the fourth preset temperature X4 is: 2-6 ℃; preferably, the fourth preset temperature X4 is in the range of: 3-5 ℃; the control can be more accurate and reasonable.
Therefore, the air conditioner enters an air supply mode, and the indoor required air inlet quantity is judged according to the outdoor environment temperature T _ ao and the indoor return air temperature T _ ai; thereby ensure indoor air quality and guarantee user's comfort level again promptly.
When the air conditioner operates, under different operation modes, whether the fresh air system is automatically started or not is judged through the outdoor environment temperature T _ ao and the indoor return air temperature T _ ai, if the fresh air system is not automatically started, whether the fresh air system is automatically started or not is continuously judged through the indoor return air temperature T _ ai and the set temperature T _ set of the air conditioner in the current operation state of the air conditioner, and after the fresh air system is started, air is supplied through an air supply device arranged in the fresh air system, and because the outdoor environment temperature T _ ao, the indoor return air temperature T _ ai and the set temperature in the current operation state are not used, the air supply gear of the air supply device 34 needs to be controlled; therefore, when the air conditioner is in normal operation, outdoor fresh air is supplemented for the room, a fresh air mode is added, and the air quality in the room is improved.
S3, if the fresh air system is not automatically started, continuously judging the size relationship between the indoor return air temperature T _ ai and the set temperature T _ set of the air conditioner, and continuously judging whether the fresh air system is automatically started or not according to the size relationship between the indoor return air temperature T _ ai and the set temperature T _ set of the air conditioner;
s31, under the refrigeration mode, continuously judging the size relation between the indoor return air temperature T _ ai and the set temperature T _ set of the air conditioner;
s311, when the indoor return air temperature T _ ai is greater than or equal to the set temperature T _ set + first preset temperature X1 of the air conditioner; the fresh air system is in a closed state. At the moment, the temperature in the room does not reach the set temperature of the air conditioner, and the fresh air system is in a closed state, so that the condition that the comfort is influenced by sending outdoor high-temperature air into the room is avoided.
S312, when the indoor return air temperature T _ ai is less than the set temperature T _ set + the first preset temperature X1 of the air conditioner and greater than the set temperature T _ set of the air conditioner, automatically starting the fresh air system; after the fresh air system is automatically started, the air supply device 34 is controlled to operate at a low wind gear; and starting an air supply device 34 of the fresh air system, enabling outdoor fresh air to enter the room through a fresh air pipeline 31, mixing the outdoor fresh air with air in the room at an air return inlet of the air conditioner, then enabling the mixed air to enter a heat exchanger of the indoor unit, reducing the temperature, and then enabling the mixed air to enter the room through an air outlet 11 of the indoor unit, so that the purpose of providing fresh air for the room is achieved.
S313, when the indoor return air temperature T _ ai is less than or equal to the set temperature T _ set of the air conditioner, the fresh air system is automatically started; after the fresh air system is automatically started, the high-wind-gear operation of the air supply device 34 is controlled. At this time, the room is considered to reach the temperature set by the user, the load in the room is small, and the air supply device 34 of the fresh air system starts the high-wind-level operation to provide sufficient fresh air for the room.
S32, under the heating mode, continuously judging the size relation between the indoor return air temperature T _ ai and the set temperature T _ set of the air conditioner;
s321, when the indoor return air temperature T _ ai is less than or equal to the set temperature T _ set-second preset temperature X2 of the air conditioner, the fresh air system is not automatically started; at the moment, the temperature in the room does not reach the set temperature, and the fresh air system is in a closed state, so that the condition that the comfort is influenced by sending outdoor low-temperature air into the room is avoided;
s322, when the indoor return air temperature T _ ai is less than the set temperature T _ set of the air conditioner and greater than the set temperature T _ set of the air conditioner and a second preset temperature X2, automatically starting the fresh air system; after the fresh air system is automatically started, the air supply device 34 is controlled to operate at a low wind gear; and starting an air supply device of the fresh air system, enabling outdoor fresh air to enter a room through a fresh air pipeline 31, enabling the outdoor fresh air to enter a heat exchanger of the indoor unit after being mixed with air in the room at an air return inlet of the air conditioner, and enabling the air to enter the room through an air outlet 11 of the indoor unit after the temperature rises, so that the purpose of providing fresh air for the room is achieved.
S323, when the indoor return air temperature T _ ai is greater than or equal to the set temperature T _ set of the air conditioner, automatically starting the fresh air system; after the fresh air system is automatically started, the high-wind-gear operation of the air supply device 34 is controlled. At the moment, the room is considered to reach the temperature set by the user, the load in the room is small, and the air supply device 34 of the fresh air system starts a high wind level to operate so as to provide sufficient fresh air for the room;
preferably, the first preset temperature X1 ranges from: 1-6 ℃; preferably, the first preset temperature X1 is in the range of: 2-5 ℃; the second preset temperature X2 ranges from: 1-6 ℃; preferably, the second preset temperature X2 is in the range of: 2-5 ℃; the control can be more accurate and reasonable.
And S4, after the fresh air system is automatically started, controlling a gear of a wind shield of an air supply device in the fresh air system to operate.
And confirming that the air conditioner enters a refrigeration mode, the outdoor environment temperature T _ ao is less than or equal to the indoor return air temperature T _ ai, and the temperature in the room is higher than the outdoor environment temperature T _ ao, so that the fresh air system is automatically started, high-wind-level operation is performed, a large amount of fresh air is provided for the room, and the quality of the indoor air is guaranteed. And confirming that the air conditioner enters a heating mode, the outdoor environment temperature T _ ao is greater than the indoor return air temperature T _ ai, and the temperature in the room is lower than the outdoor environment temperature T _ ao, so that the fresh air system is automatically started, high-wind-level operation is performed, a large amount of fresh air is provided for the room, and the quality of the indoor air is guaranteed.
Preferably, when the air conditioning system runs in the fresh air mode, the air conditioning system can be set to the automatic mode or manually set the fresh air volume according to the needs. The fresh air system can be in a closed state, an open state or a default state, and the operation state can be changed by the user or the rotating speed of the air supply device 34 can be adjusted to control the fresh air volume.
In the automatic mode, the fresh air system automatically judges the fresh air volume required by a room according to the divided temperature interval and the temperature compensation value, and then controls the operation of the fresh air system according to a preset program; the user can also set the fresh air volume according to the fresh degree or subjective feeling of the air in the room, and the requirement of supplementing fresh air to the room is met.
When a user forcibly changes the running state of the fresh air system, the fresh air system immediately exits the original running state, and the requirements set by the user are taken as the main requirements; the fresh air system sets the priority, so the conflict can be avoided.
As shown in fig. 5, in some specific embodiments, the method for controlling fresh air of an air conditioner further includes a defrosting mode, which specifically includes:
s5, under the heating mode, the fresh air system is in a closed state;
s51, acquiring the coil temperature of the outdoor unit heat exchanger, and judging whether the fresh air system is automatically started or not according to the coil temperature of the outdoor unit heat exchanger; after the fresh air system is automatically started, the gear of the wind gear operation of the air supply device 34 is controlled.
Therefore, in the heating mode, the indoor air quality can be maintained, the outdoor heat exchanger can be defrosted, and the indoor heating comfort level is improved.
S511, when the temperature of the coil pipe is higher than a fifth preset temperature X5, keeping the fresh air system in a closed state; at the moment, the heat exchanger of the outdoor unit is not frosted, and the fresh air system keeps the current state;
s5111, when the temperature of the coil pipe is greater than a fifth preset temperature X5 and the operation time of the fresh air system is greater than a first preset time T1, the fresh air system is closed. Preferably, the first predetermined time T1 ranges from: 5-10 min; preferably, the first preset time T1 is 5min, at which time the fresh air system is turned off and the blower 34 stops operating, so as to avoid unnecessary energy loss.
S512, when the temperature of the coil pipe is higher than a sixth preset temperature and lower than a fifth preset temperature, automatically starting a fresh air system; after the fresh air system is started, the reverse low-wind-level operation of the air supply device is controlled; at this moment, the outdoor heat exchanger is considered to be frosted slightly or a frosting risk exists, if the frosting of the heat exchanger seriously affects the heat exchange efficiency of the heat exchanger, the heating capacity of the indoor unit is attenuated, the frost layer is thicker and thicker, and finally the indoor unit enters a defrosting mode, so that the indoor unit can pause heating, and the comfort of a user is affected. At the moment, the fresh air system is started, the air supply device reversely runs at a low wind level, an air supply outlet 32 of the fresh air system becomes an air inlet, a small amount of hot air in a room is sent to the windward side of the outdoor unit heat exchanger through the fresh air pipeline 31 by an air supply nozzle 37, the frost layer on the surface of the fin is removed, the frosting of the fin is prevented, and the heat exchange efficiency of the heat exchanger is increased.
S513, when the temperature of the coil pipe is less than or equal to a sixth preset temperature, automatically starting a fresh air system; after the fresh air system is started, the air supply device 34 is controlled to operate in a reverse high wind gear. At the moment, the outdoor unit is frosted, the frost layer is more, the heating capacity of the indoor unit is seriously attenuated, the fresh air system is started, the air supply device reversely runs at a high wind level, more hot air is blown to the surface of the heat exchanger, the fin frosting condition is improved, and the air conditioner heating running time is increased.
The fresh air control method of the embodiment can help the outdoor unit heat exchanger to defrost, increase the heat exchange efficiency of the outdoor unit heat exchanger, avoid or relieve the attenuation of heating capacity caused by frosting, and improve the heating comfort in a room.
Preferably, the range of the fifth preset temperature X5 is: 0 to 3 ℃; preferably, the fifth preset temperature X5 is in the range of: 0 ℃; the range of the sixth preset temperature X6 is: -6 to-5 ℃; preferably, the sixth preset temperature X6 is in the range of: -5 ℃; the control can be more accurate and reasonable.
The temperature of the coil pipe is higher than 0 ℃, which is the boundary temperature for judging whether the heat exchanger frosts, and when the temperature of the coil pipe is higher than 0 ℃, the moisture in the air is not easy to frost.
The temperature judgment and coil temperature of the present application is not limited to the fifth preset temperature X5 and the sixth preset temperature X6, and actually, corresponding temperature compensation can be performed on the basis of 0 ℃ according to the size of the heat exchanger, and preferably: -2-2 ℃.
And S6, controlling the valve of the fresh air system to be closed if the stop running time of the fresh air system is greater than a second preset time T2. Preferably, the second predetermined time T2 ranges from: 20-40min, preferably, the second preset time T2 is: 30 min; prevent the room from leaking heat or mosquitoes and the like from entering the room through the fresh air pipe.
Compared with the prior art, the control method of the fresh air of the air conditioner has the advantages that the control method of the fresh air of the air conditioner can effectively supplement outdoor fresh air for a room when the air conditioner normally operates, and meanwhile, a fresh air mode is added, so that the improvement of the air quality in the room is facilitated, the circulating air is prevented from being breathed for a long time, and the occurrence of air conditioner diseases can be reduced.
Another embodiment of the present invention provides a control apparatus of an air conditioner, including,
the acquisition unit is used for acquiring the outdoor ambient temperature T _ ao, the indoor return air temperature T _ ai and the set temperature T _ set of the air conditioner;
the calculating unit is used for judging the magnitude relation between the outdoor environment temperature T _ ao and the indoor return air temperature T _ ai;
the calculating unit is also used for judging the magnitude relation between the indoor return air temperature T _ ai and the set temperature T _ set of the air conditioner;
the computing unit is also used for judging whether the fresh air system is automatically started or not;
the control unit is used for controlling the fresh air system to be automatically started;
the control unit is also used for controlling the gear of the wind gear operation of the air supply device 34 in the fresh air system.
Therefore, the control device obtains the outdoor ambient temperature T _ ao, the indoor return air temperature T _ ai and the set temperature T _ set of the air conditioner; therefore, whether the fresh air system is automatically started or not is judged through the computing unit; therefore, the fresh air system is controlled to be started, so that fresh air is introduced into a room, and the air quality in the room is improved.
Compared with the prior art, the advantages of the control device of the air conditioner provided by the invention are the same as those of the control method of the fresh air of the air conditioner, and are not repeated herein.
Another embodiment of the present invention further provides an air conditioner, which includes a computer readable storage medium storing a computer program and a processor, wherein the computer program is read by the processor and executed to implement the method for controlling fresh air of the air conditioner as described above.
Therefore, outdoor fresh air can be effectively supplemented for the room when the air conditioner operates normally, meanwhile, a fresh air mode is added, the improvement of the air quality in the room is facilitated, the circulating air is prevented from being breathed for a long time, and the occurrence of air conditioner diseases can be reduced.
As shown in fig. 7 and 8, the air conditioner of the present invention further includes an indoor unit 1, an outdoor unit 2 and a fresh air system; an indoor air outlet 11 of the indoor unit 1 is used for exhausting fresh air, and the air outlet direction of the air outlet 11 of the indoor unit 1 shown in fig. 7 and 8 is shown by an arrow below the indoor unit 1; the air outlet of the outdoor unit 2 is used for exhausting old air after indoor circulation filtration, and the air outlet direction of the air outlet 21 of the outdoor unit 2 shown in fig. 7 and 8 is shown by an arrow below the indoor unit 1; the fresh air system comprises a fresh air pipeline 31, and two ends of the fresh air pipeline 31 are respectively connected with the indoor unit 1 and the outdoor unit 2; the fresh air duct 31 is connected to an air outlet 32, a first filter 33, an air blowing device 34, a valve 35, a second filter 36, and an air blowing nozzle 37 in this order from the indoor unit 1 to the outdoor unit 2. A fresh air pipeline 31 and an air supply device 34 are added in the air conditioning system to supply fresh air to a room; the air supply device can run reversely, help the outdoor heat exchanger to defrost and improve the heating comfort. As shown in fig. 7, an arrow near the fresh air pipeline 31 is an operation state of the air supply device 34 in the fresh air system in the normal mode; as shown in fig. 8, an arrow near the fresh air pipeline 31 indicates a reverse operation state of the air supply device 34 in the fresh air system in the defrosting mode.
When the air conditioner is in operation, the fan of the indoor unit is started to operate, the air supply device 34 of the fresh air system is controlled to be started and stopped, outdoor air is sent into the air return opening of the indoor unit through the fresh air pipe, mixed with air in a room and then enters the indoor unit, and then the air is sent into the room through the air outlet 11 of the indoor unit, so that the purpose of providing fresh air for the room is achieved.
The fresh air pipeline 31 is added in the fresh air system of the air conditioner, so that air at an indoor air return inlet can be sent to an outdoor unit during heating, the heat exchange efficiency of an outdoor heat exchanger is improved, the fins of the outdoor heat exchanger are prevented or slowed down from frosting, and the heating operation time is increased. The first filter 33 and the second filter 36 of the fresh air system play roles of filtering and purifying air, so that the fresh air pipeline 31 is prevented from being blocked, and the cleanliness of the air in the room is guaranteed.
The air supply device 34 of the invention provides power for a fresh air system, the opening size of the valve 35 and the rotating speed of the air supply device 34 control the fresh air quantity, and the nozzle 37 sends fresh air to the return air inlet of the indoor unit; (when the defrosting is assisted, the fresh air system runs in the reverse direction, and the air supply nozzle is changed into an air inlet nozzle).
The fresh air system of the present invention is not limited to the above-mentioned embodiments, and may have a single or multiple fresh air pipes 31 or other devices, and may be installed in other sequences or manners.
Compared with other advantages of the prior art, the air conditioner has the same advantages as the control method of the fresh air of the air conditioner has in the prior art, and is not described herein again.
The invention also provides a computer readable storage medium, wherein a computer program is stored in the computer readable storage medium, and when the computer program is read and executed by a processor, the control method of the fresh air of the air conditioner is realized.
The advantages of the computer-readable storage medium in this embodiment over the prior art are the same as the advantages of the control method of fresh air of the air conditioner over the prior art, and are not described herein again.
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 (14)

1. A control method of fresh air of an air conditioner is characterized by comprising the following steps:
when the air conditioner normally operates, acquiring the outdoor environment temperature, the indoor return air temperature and the set temperature of the air conditioner; judging the magnitude relation between the outdoor environment temperature and the indoor return air temperature according to the current operation mode of the air conditioner, and judging whether a fresh air system is automatically started or not according to the magnitude relation between the outdoor environment temperature and the indoor return air temperature;
if the fresh air system is not automatically started, continuously judging the magnitude relation between the indoor return air temperature and the set temperature of the air conditioner, and continuously judging whether the fresh air system is automatically started or not according to the magnitude relation between the indoor return air temperature and the set temperature of the air conditioner; after the new trend system is automatic to be opened, control the gear of the wind regime operation of air supply arrangement (34) in the new trend system includes: in a refrigeration mode, when the indoor return air temperature is greater than or equal to the sum of the set temperature of the air conditioner and a first preset temperature, the fresh air system is not automatically started; when the indoor return air temperature is lower than the sum of the set temperature of the air conditioner and the first preset temperature and higher than the set temperature of the air conditioner, the fresh air system is automatically started; after the fresh air system is automatically started, the air supply device (34) is controlled to operate at a low wind gear; when the indoor return air temperature is less than or equal to the set temperature of the air conditioner, the fresh air system is automatically started; and after the fresh air system is automatically started, the air supply device (34) is controlled to operate at a high wind gear.
2. The method for controlling fresh air of an air conditioner according to claim 1, wherein the step of judging the magnitude relation between the outdoor environment temperature and the indoor return air temperature according to the current operation mode of the air conditioner and judging whether a fresh air system is automatically started according to the magnitude relation between the outdoor environment temperature and the indoor return air temperature comprises the following steps:
when the air conditioner is in a refrigeration mode and the outdoor environment temperature is less than or equal to the indoor return air temperature, the fresh air system is automatically started; otherwise, the fresh air system is not automatically started;
when the air conditioner is in a heating mode and the outdoor environment temperature is greater than or equal to the indoor return air temperature, the fresh air system is automatically started; otherwise, the fresh air system is not automatically started;
when the air conditioner is in an air supply mode and the absolute value of the difference between the outdoor environment temperature and the indoor return air temperature is smaller than a fourth preset temperature, the fresh air system is automatically started; otherwise, the fresh air system is not automatically started.
3. The method for controlling fresh air of an air conditioner as claimed in claim 2, wherein the air conditioner is in a cooling mode, and the outdoor ambient temperature is less than or equal to the indoor return air temperature, so that the fresh air system is automatically turned on to control the high-wind-level operation of the air supply device (34).
4. The method for controlling fresh air of an air conditioner as claimed in claim 2, wherein the air conditioner is in a heating mode, and the outdoor ambient temperature is greater than or equal to the indoor return air temperature, and then the fresh air system is automatically started to control the high-wind-level operation of the air supply device (34).
5. The method for controlling fresh air of an air conditioner according to claim 2, wherein when the air conditioner is in a blowing mode and an absolute value of a difference between the outdoor ambient temperature and the indoor return air temperature is less than a fourth preset temperature, the method specifically comprises the following steps:
when the absolute value of the difference between the outdoor environment temperature and the indoor return air temperature is less than or equal to a third preset temperature, the air supply device (34) operates in a high wind gear;
when the absolute value of the difference between the outdoor environment temperature and the indoor return air temperature is smaller than the fourth preset temperature and larger than the third preset temperature, the air supply device (34) operates at a low wind gear;
the third preset temperature is less than the fourth preset temperature.
6. The method for controlling fresh air of an air conditioner as claimed in claim 1, wherein if the fresh air system is not automatically turned on, the relationship between the indoor return air temperature and the set temperature of the air conditioner is continuously judged, and whether the fresh air system is automatically turned on or not is continuously judged according to the relationship between the indoor return air temperature and the set temperature of the air conditioner; after the automation of new trend system is opened, control the gear of the wind regime operation of air supply arrangement (34) in the new trend system still includes:
in the heating mode, the heating device is arranged,
when the indoor return air temperature is less than or equal to the difference between the set temperature of the air conditioner and a second preset temperature, the fresh air system is not automatically started;
when the indoor return air temperature is lower than the set temperature of the air conditioner and higher than the difference between the set temperature of the air conditioner and the second preset temperature, the fresh air system is automatically started; after the fresh air system is automatically started, the air supply device (34) is controlled to operate at a low wind gear;
when the indoor return air temperature is greater than or equal to the set temperature of the air conditioner, the fresh air system is automatically started; and after the fresh air system is automatically started, the air supply device (34) is controlled to operate at a high wind gear.
7. The method for controlling fresh air of an air conditioner according to claim 1, further comprising a defrosting mode, specifically comprising:
in the heating mode, the fresh air system is in a closed state;
acquiring the temperature of a coil of an outdoor unit heat exchanger, and judging whether the fresh air system is automatically started or not according to the temperature of the coil of the outdoor unit heat exchanger; and after the fresh air system is automatically started, the gear of the wind shield operation of the air supply device (34) is controlled.
8. The method for controlling fresh air of an air conditioner as claimed in claim 7, wherein whether the fresh air system is automatically turned on is judged according to the temperature of the coil of the heat exchanger of the outdoor unit; after the new trend system is automatic to be opened, control the gear of air supply arrangement (34) wind gear operation includes:
when the temperature of the coil pipe is higher than a fifth preset temperature, the fresh air system keeps a closed state;
when the temperature of the coil pipe is higher than a sixth preset temperature and lower than a fifth preset temperature, the fresh air system is automatically started; after the fresh air system is started, the air supply device (34) is controlled to operate in a reverse low wind gear;
when the temperature of the coil pipe is less than or equal to the sixth preset temperature, the fresh air system is automatically started; and after the fresh air system is started, the air supply device (34) is controlled to operate in a reverse high wind gear.
9. The method as claimed in claim 8, wherein when the coil temperature is higher than the fifth preset temperature and the operation time of the fresh air system is higher than the first preset time, the fresh air system is turned off.
10. The method for controlling fresh air of an air conditioner as claimed in claim 1, characterized in that when the operation stop time of the fresh air system is greater than a second preset time, the valve (35) of the fresh air system is controlled to be closed.
11. A control apparatus of an air conditioner, comprising:
the system comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is used for acquiring the outdoor environment temperature, the indoor return air temperature and the set temperature of the air conditioner;
the calculating unit is used for judging the magnitude relation between the outdoor environment temperature and the indoor return air temperature;
the computing unit is also used for judging the magnitude relation between the indoor return air temperature and the set temperature of the air conditioner;
the computing unit is also used for judging whether the fresh air system is automatically started or not;
the control unit is used for controlling the fresh air system to be automatically started;
the control unit is also used for controlling the gear of the wind shield operation of an air supply device (34) in the fresh air system, and comprises: in a refrigeration mode, when the indoor return air temperature is greater than or equal to the sum of the set temperature of the air conditioner and a first preset temperature, the fresh air system is not automatically started; when the indoor return air temperature is lower than the sum of the set temperature of the air conditioner and the first preset temperature and higher than the set temperature of the air conditioner, the fresh air system is automatically started; after the fresh air system is automatically started, the air supply device (34) is controlled to operate at a low wind gear; when the indoor return air temperature is less than or equal to the set temperature of the air conditioner, the fresh air system is automatically started; and after the fresh air system is automatically started, the air supply device (34) is controlled to operate at a high wind gear.
12. An air conditioner comprising a computer readable storage medium storing a computer program and a processor, wherein the computer program is read by the processor and executed to implement the method for controlling fresh air for air conditioners as claimed in any one of claims 1 to 10.
13. The air conditioner according to claim 12, comprising an indoor unit (1), an outdoor unit (2) and a fresh air system; the fresh air system comprises a fresh air pipeline (31), and two ends of the fresh air pipeline (31) are respectively connected with the indoor unit (1) and the outdoor unit (2); the fresh air pipeline (31) is sequentially connected with an air supply outlet (32), a first filter (33), an air supply device (34), a valve (35), a second filter (36) and an air supply nozzle (37) from the indoor unit (1) to the outdoor unit (2).
14. A computer-readable storage medium, characterized in that it stores a computer program which, when read and executed by a processor, implements the control method of fresh air for air conditioners according to any one of claims 1 to 10.
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CN209386432U (en) * 2019-01-06 2019-09-13 宁波东大空调设备有限公司 A kind of fresh air, air conditioner integrated machine
CN110579006A (en) * 2019-07-27 2019-12-17 广州松下空调器有限公司 linkage control method and system for air conditioning equipment

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