CN114543253B - Fresh air control method and device in refrigeration mode, air conditioner and readable storage medium - Google Patents
Fresh air control method and device in refrigeration mode, air conditioner and readable storage medium Download PDFInfo
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- CN114543253B CN114543253B CN202210341606.6A CN202210341606A CN114543253B CN 114543253 B CN114543253 B CN 114543253B CN 202210341606 A CN202210341606 A CN 202210341606A CN 114543253 B CN114543253 B CN 114543253B
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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
- F24F11/0001—Control or safety arrangements for ventilation
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0035—Indoor units, e.g. fan coil units characterised by introduction of outside air to the room
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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
- F24F11/62—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
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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
- F24F11/62—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
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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
- F24F11/70—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
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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
- F24F11/70—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
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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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
- F24F11/70—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
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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
- F24F11/70—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
- F24F11/87—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units
- F24F11/871—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units by controlling outdoor fans
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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
- F24F11/89—Arrangement or mounting of control or safety devices
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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
- F24F11/0001—Control or safety arrangements for ventilation
- F24F2011/0002—Control or safety arrangements for ventilation for admittance of outside air
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/20—Humidity
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/20—Humidity
- F24F2110/22—Humidity of the outside air
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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
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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- 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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- Mechanical Engineering (AREA)
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- Physics & Mathematics (AREA)
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- Fuzzy Systems (AREA)
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- Air Conditioning Control Device (AREA)
Abstract
The application provides a fresh air control method in a refrigeration mode, which comprises the following steps: when the air conditioner is in a refrigeration mode, acquiring outdoor fresh air temperature Txg, indoor temperature Tsg, outdoor fresh air humidity Hx and indoor humidity Hs; and adjusting the air conditioner to enter a corresponding first control mode, a second control mode and a third control mode through the difference value between the outdoor fresh air temperature Txg and the indoor temperature Tsg and the difference value between the outdoor fresh air humidity Hx and the indoor humidity Hs. The embodiment of the application effectively improves the comfort level of the air conditioner.
Description
Technical Field
The application relates to the technical field of air conditioners, in particular to a fresh air control method in a refrigeration mode, a fresh air control device in the refrigeration mode of an air conditioner, an air conditioner and a readable storage medium.
Background
Along with the improvement of living standard and technological level, the comfort requirement of people on the air conditioner is higher and higher, and the requirement on the air quality in the room is also higher and higher; at present, few air conditioner manufacturers produce air conditioners with fresh air function, but when the air conditioners are operated in a refrigerating mode, the temperature of the fresh air introduced outdoors is higher than that of the indoor air, so that the indoor environment temperature is suddenly increased, the hidden danger of condensation and water dripping at the air outlet of the indoor unit is aggravated, and the use comfort of the air conditioner is further affected.
Existing fresh air is regulated, but existing fresh air control modes are single, and the quick regulation of fresh air temperature under different conditions cannot be realized, so that the comfort level of a fresh air conditioner is reduced, and the use experience of a user is influenced.
Disclosure of Invention
Therefore, the embodiment of the application provides a fresh air control method in a refrigeration mode, which effectively improves the comfort level of the air conditioner.
In order to solve the above problems, the present application provides a method for controlling fresh air in a refrigeration mode, which introduces outdoor fresh air into an indoor unit, and conveys the fresh air into the room after cooling and dehumidifying by an evaporator, comprising: when the air conditioner is in a refrigeration mode, acquiring outdoor fresh air temperature Txg, indoor temperature Tsg, outdoor fresh air humidity Hx and indoor humidity Hs; and adjusting the air conditioner to enter a corresponding first control mode, a second control mode and a third control mode through the difference value between the outdoor fresh air temperature Txg and the indoor temperature Tsg and the difference value between the outdoor fresh air humidity Hx and the indoor humidity Hs.
Compared with the prior art, the technical effect achieved by adopting the technical scheme is as follows: the outdoor fresh air temperature Txg, the indoor temperature Tsg, the outdoor fresh air humidity Hx and the indoor humidity Hs are obtained, the difference between the outdoor fresh air temperature Txg and the indoor temperature Tsg and the difference between the outdoor fresh air humidity Hx and the indoor humidity Hs are combined to judge that the air conditioner enters a first control mode, a second control mode and a third control mode, the air conditioner can be adjusted in real time through corresponding control means, after the outdoor fresh air passes through the indoor unit heat exchanger, the fresh air temperature can be reduced, the fresh air temperature is quickly close to the indoor temperature, and the comfort level of a refrigerating mode is improved; the hidden trouble of condensation and water dripping of the air outlet of the indoor unit can be reduced; meanwhile, the fresh air is cooled and dehumidified to different degrees based on different temperature and humidity difference values, so that the fresh air under different temperature and humidity difference values can be ensured to be close to indoor temperature and humidity.
In one example of the application, txg-tsg=tx, where Txg is outdoor fresh air temperature, tsg is indoor temperature, tx is temperature difference; hx-hs=hx, where Hx is fresh air humidity, hs is indoor humidity, and Hx is humidity difference; when Tx is more than or equal to T1 and Hx is more than or equal to H1, the air conditioner enters a first control mode; when T1 is more than Tx and more than or equal to T2, and H1 is more than or equal to Hx and more than or equal to H2, the air conditioner enters a second control mode; when T2 is more than Tx and H2 is more than Hx, the air conditioner enters a third control mode; wherein, T1 is a first temperature threshold T1, T2 is a second temperature threshold, H1 is a first humidity threshold, and H2 is a second temperature threshold; and T1 > T2, H1 > H2.
Compared with the prior art, the technical effect achieved by adopting the technical scheme is as follows: through the combination comparison judgment of the temperature difference Tx and the humidity difference Hx, when Tx is more than or equal to T1 and Hx is more than or equal to H1, the outdoor temperature is higher than the indoor temperature, and the outdoor humidity is also higher than the indoor humidity, so that the air conditioner enters a first control mode; when T1 is more than Tx and more than or equal to T2 and H1 is more than or equal to Hx and more than or equal to H2, the outdoor temperature is higher than the indoor temperature, and the outdoor humidity is higher than the indoor humidity, so that the air conditioner enters a second control mode; when T2 is more than Tx and H2 is more than Hx, the outdoor temperature is slightly higher than the indoor temperature, and the outdoor humidity is also slightly higher than the indoor humidity, so that the air conditioner enters a third control mode, the three different grades of humiture are distinguished, the air conditioner is adjusted in real time, after the outdoor fresh air passes through the indoor unit heat exchanger, the fresh air temperature can be reduced, the fresh air temperature is quickly close to the indoor temperature, and the comfort degree of a refrigerating mode is improved; the hidden trouble of condensation and water dripping of the air outlet of the indoor unit can be reduced; meanwhile, the fresh air is cooled and dehumidified to different degrees based on different temperature and humidity difference values, so that the fresh air under different temperature and humidity difference values can be ensured to be close to indoor temperature and humidity.
In one example of the present application, acquiring the outdoor fresh air humidity Hx and the indoor humidity Hs includes: acquiring the outdoor fresh air temperature Txg and the fresh air wet bulb temperature Txs, wherein hx= Txs/Txg; and acquiring the indoor temperature Tsg and the indoor wet bulb temperature Tss, wherein Hs=Tss/Tsg.
Compared with the prior art, the technical effect achieved by adopting the technical scheme is as follows: the outdoor fresh air humidity Hx obtained through the outdoor fresh air temperature Txg and the fresh air wet bulb temperature Txs, the indoor temperature Tsg and the indoor humidity Hs obtained through the indoor wet bulb temperature Tss, and the corresponding humidity can be quickly obtained through detecting the corresponding wet bulb temperature which needs to be monitored due to the outdoor fresh air temperature Txg and the indoor temperature Tsg, so that the convenience and the accuracy of detection data are improved.
In one example of the present application, the first control mode, the second control mode, and the third control mode include: increasing the compressor frequency; the rotating speed of the outdoor fan is improved.
Compared with the prior art, the technical effect achieved by adopting the technical scheme is as follows: when the fresh air temperature is higher than the indoor temperature, the refrigerating capacity of the air conditioner system is improved by improving the frequency of the compressor; the rotating speed of the outdoor fan is improved, the temperature of the indoor unit heat exchanger is reduced, and the effect of reducing the fresh air temperature and humidity is achieved.
In one example of the application, when in the first control mode, the compressor frequency is increased to a first operating frequency f1; adjusting the rotating speed of the outdoor fan to a first rotating speed n1 of the outdoor fan; increasing the compressor frequency to a second operating frequency f2 when in the second control mode; adjusting the rotating speed of the outdoor fan to a second rotating speed n2 of the outdoor fan; increasing the compressor frequency to a third operating frequency f3 when in the third control mode; adjusting the rotating speed of the outdoor fan to a third rotating speed n3 of the outdoor fan; wherein f1 > f2 > f3, and n1 > n2 > n3.
Compared with the prior art, the technical effect achieved by adopting the technical scheme is as follows: because the outdoor temperature is high relative to the indoor temperature and the outdoor humidity is also high relative to the indoor humidity, the refrigerating capacity of the air conditioner system is improved by improving the frequency of the compressor to the first operating frequency and the rotating speed of the outdoor fan to the rotating speed of the first outdoor fan, and the effect of reducing the fresh air temperature and the humidity is achieved; the frequency of the compressor is increased to a second operating frequency smaller than the first operating frequency, and the rotating speed of the outdoor fan is increased to a second rotating speed of the outdoor fan smaller than the rotating speed of the first outdoor fan, so that the refrigerating capacity of the air conditioner system is increased, and the effect of reducing the temperature and the humidity of fresh air is achieved; the frequency of the compressor is increased to a third operating frequency smaller than the second operating frequency, and the rotating speed of the outdoor fan is increased to a third rotating speed of the outdoor fan smaller than the rotating speed of the second outdoor fan, so that the refrigerating capacity of the air conditioner system is increased, and the effect of reducing the temperature and the humidity of fresh air is achieved; the temperature difference value and the humidity difference value are matched with different threshold value intervals, the frequency of the compressor and the rotating speed of the outdoor fan are accurately adjusted, and the purposes of reasonably and effectively cooling and dehumidifying fresh air in different temperature and humidity difference value states are achieved, so that insufficient cooling and dehumidifying or excessive cooling and dehumidifying are avoided.
In one example of the present application, the first control mode, the second control mode, and the third control mode include: reducing the rotating speed of an indoor fan; a coil temperature Tp is obtained, and the electronic expansion valve opening is adjusted according to the coil temperature Tp.
Compared with the prior art, the technical effect achieved by adopting the technical scheme is as follows: through reducing the rotation speed of the indoor fan, the air supply quantity of the indoor unit is reduced, and the evaporating temperature of the air conditioner is reduced, so that the temperature and the humidity of fresh air are reduced. In order to avoid too low or too high evaporation temperature, the opening of the electronic expansion valve is adjusted by combining the coil temperature Tp, so that the air conditioner can reduce the fresh air temperature and the humidity to a large extent on the premise of not damaging the air conditioner.
In one example of the present application, when in the first control mode, the indoor fan speed is reduced to a first indoor fan speed n4; when Tp is more than or equal to T3, increasing the opening of the electronic expansion valve; when T3 is more than Tp and more than or equal to T4, the opening of the electronic expansion valve is unchanged; when T4 is more than Tp, reducing the opening of the electronic expansion valve; when the control mode is in the second control mode, the rotating speed of the indoor fan is reduced to a second rotating speed n5 of the indoor fan; when Tp is more than or equal to T5, increasing the opening of the electronic expansion valve; when T5 is more than Tp and more than or equal to T6, the opening of the electronic expansion valve is unchanged; when T6 is more than Tp, reducing the opening of the electronic expansion valve; when the indoor fan is in the third control mode, the rotating speed of the indoor fan is reduced to a third rotating speed n6 of the indoor fan; when Tp is more than or equal to T7, increasing the opening of the electronic expansion valve; when T7 is more than Tp and more than or equal to T8, the opening of the electronic expansion valve is unchanged; when T8 is more than Tp, reducing the opening of the electronic expansion valve; wherein T3 is a third temperature threshold, T4 is a fourth temperature threshold, T5 is a fifth temperature threshold, T6 is a sixth temperature threshold, T7 is a seventh temperature threshold, T8 is an eighth temperature threshold, T3 is less than T5 and less than T7, T4 is less than T6 and less than T8, and n4 is less than n5 and less than n6.
Compared with the prior art, the technical effect achieved by adopting the technical scheme is as follows: the fresh air temperature and humidity in different control modes are different relative to the indoor temperature and humidity, so that different control comparison modes exist in different modes, and the air conditioner can reduce the fresh air temperature and humidity to the greatest extent on the premise of not damaging the air conditioner; and in the first control mode, the fresh air temperature and humidity are higher than the indoor temperature and humidity, in the second control mode, the fresh air temperature and humidity are higher than the indoor temperature and humidity, and in the third control mode, the fresh air temperature and humidity are closer to the indoor temperature and humidity, so that the third temperature threshold T3 is larger than the fifth temperature threshold T5 and larger than the seventh temperature T7, and the fourth temperature threshold T4 is larger than the sixth temperature threshold T6 and larger than the eighth temperature T8.
On the other hand, the application also provides a fresh air control device for the refrigerating mode of the air conditioner, which comprises the following components: the acquisition module is used for acquiring outdoor fresh air temperature Txg, indoor temperature Tsg, outdoor fresh air humidity Hx and indoor humidity Hs; and the control module is used for adjusting the air conditioner to enter a corresponding first control mode, a second control mode and a third control mode according to the difference value between the outdoor fresh air temperature Txg and the indoor temperature Tsg and the difference value between the outdoor fresh air humidity Hx and the indoor humidity Hs.
The fresh air control device of the heating mode of the air conditioner in this embodiment is used for implementing the fresh air control method of the cooling mode in any embodiment of the present application, so that the fresh air control device has all the advantages of the fresh air control method of the cooling mode in any embodiment of the present application, and will not be described herein.
In still another aspect, an embodiment of the present application further provides an air conditioner, including: the system comprises a processor, a memory and a program or an instruction stored in the memory and capable of running on the processor, wherein the program or the instruction realizes the steps of the fresh air control method in the refrigeration mode according to any one of the embodiments when the program or the instruction is executed by the processor.
The air conditioner in this embodiment operates the method for controlling fresh air in a cooling mode according to any embodiment of the present application, so that the method for controlling fresh air in a cooling mode according to any embodiment of the present application has all the advantages of the method for controlling fresh air in a cooling mode according to any embodiment of the present application, and will not be described herein.
After the technical scheme of the application is adopted, the following technical effects can be achieved:
(1) The difference between the outdoor fresh air temperature Txg and the indoor temperature Tsg and the difference between the outdoor fresh air humidity Hx and the indoor humidity Hs are combined to judge that the air conditioner enters a first control mode, a second control mode and a third control mode, the air conditioner can be adjusted in real time through corresponding control means, after the outdoor fresh air passes through the indoor unit heat exchanger, the fresh air temperature can be reduced, the fresh air temperature is enabled to be fast approximate to the indoor temperature, and the comfort level of a refrigerating mode is improved; the hidden trouble of condensation and water dripping of the air outlet of the indoor unit can be reduced; meanwhile, the fresh air is cooled and dehumidified to different degrees based on different temperature and humidity differences, so that the fresh air under different temperature and humidity differences can be ensured to be close to indoor temperature and humidity;
(2) The outdoor fresh air humidity Hx and the indoor humidity Hs are obtained through the outdoor fresh air temperature Txg and the fresh air wet bulb temperature Txs, and the indoor temperature Tsg and the indoor wet bulb temperature Tss, and the outdoor fresh air temperature Txg and the indoor temperature Tsg are required to be monitored, and then the corresponding humidity can be quickly obtained through detecting the corresponding wet bulb temperature, so that the convenience and the accuracy of the detection data are improved;
(3) Because the outdoor temperature is high relative to the indoor temperature and the outdoor humidity is also high relative to the indoor humidity, the refrigerating capacity of the air conditioner system is improved by improving the frequency of the compressor to the first operating frequency and the rotating speed of the outdoor fan to the rotating speed of the first outdoor fan, and the effect of reducing the fresh air temperature and the humidity is achieved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a heating mode fresh air control method according to a first embodiment of the present application;
FIG. 2 is a detailed flowchart of a method for controlling fresh air in a heating mode according to a first embodiment of the present application;
fig. 3 is a schematic block diagram of a fresh air control device for an air conditioner heating mode according to a second embodiment of the present application;
fig. 4 is a block diagram illustrating an air conditioner according to a third embodiment of the present application;
fig. 5 is a schematic structural diagram of a readable storage medium according to a fourth embodiment of the present application.
Reference numerals illustrate:
100 is a fresh air control device of an air conditioner in a refrigeration mode; 110 is an acquisition module; 120 is a control module; 200 is an air conditioner; 210 is a memory; 211 is a computer program; 230 is a processor; 300 is a readable storage medium; 310 are computer-executable instructions.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
[ first embodiment ]
Referring to fig. 1, the fresh air control method 100 in the refrigeration mode specifically includes:
step S10, when the air conditioner starts a refrigeration mode, acquiring outdoor fresh air temperature Txg, indoor temperature Tsg, outdoor fresh air humidity Hx and indoor humidity Hs;
in step S20, the air conditioner is adjusted to enter the corresponding first control mode, second control mode and third control mode by the difference between the outdoor fresh air temperature Txg and the indoor temperature Tsg and the difference between the outdoor fresh air humidity Hx and the indoor humidity Hs.
Specifically, the outdoor fresh air temperature Txg, the indoor temperature Tsg, the outdoor fresh air humidity Hx and the indoor humidity Hs are obtained, the difference between the outdoor fresh air temperature Txg and the indoor temperature Tsg and the difference between the outdoor fresh air humidity Hx and the indoor humidity Hs are combined to judge that the air conditioner enters a first control mode, a second control mode and a third control mode, the air conditioner can be adjusted in real time through corresponding control means, after the outdoor fresh air passes through the indoor unit heat exchanger, the fresh air temperature can be reduced, the fresh air temperature is enabled to be quickly close to the indoor temperature, and the comfort level of a refrigerating mode is improved; the hidden trouble of condensation and water dripping of the air outlet of the indoor unit can be reduced; meanwhile, the fresh air is cooled and dehumidified to different degrees based on different temperature and humidity difference values, so that the fresh air under different temperature and humidity difference values can be ensured to be close to indoor temperature and humidity.
Further, txg-tsg=tx, wherein Txg is outdoor fresh air temperature, tsg is indoor temperature, and Tx is temperature difference; hx-hs=hx, where Hx is fresh air humidity, hs is indoor humidity, and Hx is humidity difference; when Tx is more than or equal to T1 and Hx is more than or equal to H1, the air conditioner enters a first control mode; when T1 is more than Tx and more than or equal to T2, and H1 is more than or equal to Hx and more than or equal to H2, the air conditioner enters a second control mode; when T2 is more than Tx and H2 is more than Hx, the air conditioner enters a third control mode; wherein, T1 is a first temperature threshold T1, T2 is a second temperature threshold, H1 is a first humidity threshold, and H2 is a second temperature threshold; and T1 > T2, H1 > H2.
For example, by combining the temperature difference Tx and the humidity difference Hx with the comparison judgment, when Tx is greater than or equal to T1 and Hx is greater than or equal to H1, the outdoor temperature is higher than the indoor temperature, and the outdoor humidity is also higher than the indoor humidity, so that the air conditioner enters the first control mode; when T1 is more than Tx and more than or equal to T2 and H1 is more than or equal to Hx and more than or equal to H2, the outdoor temperature is higher than the indoor temperature, and the outdoor humidity is higher than the indoor humidity, so that the air conditioner enters a second control mode; when T2 is more than Tx and H2 is more than Hx, the outdoor temperature is slightly higher than the indoor temperature, and the outdoor humidity is also slightly higher than the indoor humidity, so that the air conditioner enters a third control mode, the three different grades of humiture are distinguished, the air conditioner is adjusted in real time, after the outdoor fresh air passes through the indoor unit heat exchanger, the fresh air temperature can be reduced, the fresh air temperature is quickly close to the indoor temperature, and the comfort degree of a refrigerating mode is improved; the hidden trouble of condensation and water dripping of the air outlet of the indoor unit can be reduced; meanwhile, the fresh air is cooled and dehumidified to different degrees based on different temperature and humidity difference values, so that the fresh air under different temperature and humidity difference values can be ensured to be close to indoor temperature and humidity.
In a specific embodiment, when Tx is greater than or equal to 10 ℃ and Hx is greater than or equal to 30%, the air conditioner enters a first control mode; when the temperature of 10 ℃ is more than Tx and is more than or equal to 5 ℃ and the temperature of 30% > Hx is more than or equal to 20%, the air conditioner enters a second control mode; when 5 ℃ is higher than Tx and 20% is higher than Hx, the air conditioner enters a third control mode.
Preferably, the control modes are not only three but also four or more, so that the air conditioner is further subdivided to achieve better adjustment effect.
Preferably, acquiring the outdoor fresh air humidity Hx and the indoor humidity Hs includes: the obtaining the outdoor fresh air humidity Hx and the indoor humidity Hs includes: acquiring the outdoor fresh air temperature Txg and the fresh air wet bulb temperature Txs, wherein hx= Txs/Txg; and acquiring the indoor temperature Tsg and the indoor wet bulb temperature Tss, wherein Hs=Tss/Tsg.
For example, the outdoor fresh air humidity Hx and the indoor humidity Hs obtained by the outdoor fresh air temperature Txg and the fresh air wet bulb temperature Txs, and the indoor temperature Tsg and the indoor wet bulb temperature Tss, because the outdoor fresh air temperature Txg and the indoor temperature Tsg are needed to be monitored, the corresponding humidity can be quickly obtained by detecting the corresponding wet bulb temperature, thereby improving the convenience and the accuracy of the detection data.
Specifically, the first control mode includes: increasing the compressor frequency to a first operating frequency f1; and adjusting the rotating speed of the outdoor fan to a first rotating speed n1 of the outdoor fan. For example, since the outdoor temperature is high relative to the indoor temperature and the outdoor humidity is also high relative to the indoor humidity, the cooling capacity of the air conditioner system is increased by increasing the frequency of the compressor to the first operating frequency f1 and the rotation speed of the outdoor fan to the first rotation speed n1 of the outdoor fan, so as to achieve the effect of reducing the fresh air temperature and humidity.
Further, the second control mode includes: increasing the compressor frequency to a second operating frequency f2; adjusting the rotating speed of the outdoor fan to a second rotating speed n2 of the outdoor fan; wherein the first operating frequency f1 is greater than the second operating frequency f2; the first outdoor fan rotational speed n1 is greater than the second outdoor fan rotational speed n2. For example, since the outdoor temperature is higher than the indoor temperature and the outdoor humidity is also higher than the indoor humidity, the cooling capacity of the air conditioner system is improved by increasing the frequency of the compressor to the second operating frequency f2 smaller than the first operating frequency f1 and the rotation speed of the outdoor fan to the second rotation speed n2 smaller than the first rotation speed n1 of the outdoor fan, so as to achieve the effect of reducing the fresh air temperature and humidity.
Still further, the third control mode includes: increasing the compressor frequency to a third operating frequency f3; adjusting the rotating speed of the outdoor fan to a third rotating speed n3 of the outdoor fan; wherein the second operating frequency f2 is greater than the third operating frequency f3; the second outdoor fan rotational speed n2 is greater than the third outdoor fan rotational speed n3. For example, since the outdoor temperature is slightly higher than the indoor temperature and the outdoor humidity is also slightly higher than the indoor humidity, the cooling capacity of the air conditioner system is improved by increasing the frequency of the compressor to the third operating frequency f3 smaller than the second operating frequency f2 and the rotation speed of the outdoor fan to the third rotation speed n3 of the outdoor fan smaller than the second rotation speed n2, so as to achieve the effect of reducing the fresh air temperature and humidity.
Further, the first operating frequency f1 is greater than the second operating frequency f2 and greater than the third operating frequency f3, the first outdoor fan rotating speed n1 is greater than the second outdoor fan rotating speed n2 and greater than the third outdoor fan rotating speed n3, namely f1 > f2 > f3, and n1 > n2 > n3.
In a specific embodiment, after the 1.5P air conditioner enters the first control mode, the compressor is quickly raised to the highest operating frequency of 90Hz, and the outdoor fan speed is quickly raised to the highest windshield 1100r/min; when the air conditioner with the speed of 1.5P enters the second control mode, the compressor is quickly lifted to the highest operation frequency of 81Hz of 90 percent, and the rotating speed of the outdoor fan is quickly lifted to the highest windshield 990r/min of 90 percent; when the air conditioner of 1.5P enters the third control mode, the compressor is quickly lifted to the highest operation frequency of 80 percent of 72Hz, and the rotating speed of the outdoor fan is quickly lifted to the highest windshield 880r/min of 80 percent.
Specifically, the first control mode, the second control mode, and the third control mode include: reducing the rotating speed of an indoor fan; a coil temperature Tp is obtained, and the electronic expansion valve opening is adjusted according to the coil temperature Tp.
For example, by reducing the rotational speed of the indoor fan, the air supply quantity of the indoor unit is reduced, and the evaporating temperature of the air conditioner is reduced, so that the temperature and the humidity of fresh air are reduced. In order to avoid too low or too high evaporation temperature, the opening of the electronic expansion valve is adjusted by combining the coil temperature Tp, so that the air conditioner can reduce the fresh air temperature and the humidity to a large extent on the premise of not damaging the air conditioner.
Preferably, the first control mode further includes: reducing the rotation speed of the indoor fan to the rotation speed of the first indoor fan; acquiring a coil temperature Tp, and adjusting the opening of the electronic expansion valve according to the coil temperature Tp; when Tp is more than or equal to T3, increasing the opening of the electronic expansion valve; when T3 is more than Tp and more than or equal to T4, the opening of the electronic expansion valve is unchanged; and when T4 is larger than Tp, reducing the opening of the electronic expansion valve, wherein T3 is a third temperature threshold value, and T4 is a fourth temperature threshold value.
For example, by reducing the rotational speed of the indoor fan, the air supply quantity of the indoor unit is reduced, and the evaporating temperature of the air conditioner is reduced, so that the temperature and the humidity of fresh air are reduced. In order to avoid too low or too high evaporation temperature, the opening of the electronic expansion valve is adjusted by combining the coil temperature Tp, so that the air conditioner can reduce the fresh air temperature and the humidity to a large extent on the premise of not damaging the air conditioner.
Further, the second control mode further includes: reducing the rotation speed of the indoor fan to the rotation speed of a second indoor fan; acquiring a coil temperature Tp, and adjusting the opening of the electronic expansion valve according to the coil temperature Tp; when Tp is more than or equal to T5, increasing the opening of the electronic expansion valve; when T5 is more than Tp and more than or equal to T6, the opening of the electronic expansion valve is unchanged; when T6 is more than Tp, reducing the opening of the electronic expansion valve; the rotating speed of the first indoor fan is smaller than that of the second indoor fan; t5 is a fifth temperature threshold, T6 is a sixth temperature threshold, and the fifth temperature threshold T5 is greater than the sixth temperature threshold T6 and greater than the third temperature threshold T3 and greater than the fourth temperature threshold T4.
For example, because the outdoor temperature is higher than the indoor temperature and the outdoor humidity is also higher than the indoor humidity, the rotation speed of the indoor fan is adjusted to the rotation speed of the second indoor fan which is smaller than the rotation speed of the first indoor fan, the air supply quantity of the indoor unit is reduced, the evaporating temperature of the air conditioner is reduced, and the temperature and the humidity of fresh air are reduced; on the other hand, a fifth temperature threshold T5 and a sixth temperature threshold T6 which are larger than the third temperature threshold T3 are selected to judge the coil temperature Tp, so that the electronic expansion valve is controlled, and the air conditioner can reduce the fresh air temperature and the fresh air humidity to the greatest extent on the premise of not damaging the air conditioner.
Still further, the third control mode further includes: reducing the rotation speed of the indoor fan to the rotation speed of a third indoor fan; acquiring a coil temperature Tp, and adjusting the opening of the electronic expansion valve according to the coil temperature Tp; when Tp is more than or equal to T7, increasing the opening of the electronic expansion valve; when T7 is more than Tp and more than or equal to T8, the opening of the electronic expansion valve is unchanged; when T8 is more than Tp, reducing the opening of the electronic expansion valve; wherein T7 is a seventh temperature threshold, T8 is an eighth temperature threshold, and the seventh temperature threshold T7 is greater than the eighth preset temperature T8 and greater than the fifth temperature threshold T5 and greater than the sixth temperature threshold T6.
For example, since the outdoor temperature is higher than the indoor temperature and the outdoor humidity is also higher than the indoor humidity, the rotation speed of the indoor fan is adjusted to the rotation speed of the third indoor fan which is smaller than the rotation speed of the second indoor fan, the air supply quantity of the indoor unit is reduced, the evaporating temperature of the air conditioner is reduced, and the temperature and the humidity of fresh air are reduced; on the other hand, a seventh temperature threshold T7 and an eighth preset temperature T8 which are larger than the fifth temperature threshold T5 are selected to judge the coil temperature Tp, so that the electronic expansion valve is controlled, and the air conditioner can reduce the fresh air temperature and the fresh air humidity to the greatest extent on the premise of not damaging the air conditioner.
In a specific embodiment, when the 1.5P air conditioner is in the first control mode, the temperature is rapidly reduced to 50% of the current rotating speed, if the current rotating speed of the air conditioner is 1300r/min, the temperature is reduced to 650r/mi, and if the coil temperature Tp is more than or equal to 8 ℃, the temperature is reduced by 5 degrees every 1 min; if the coil temperature Tp is more than or equal to 8 ℃ and is more than or equal to 6 ℃, the existing opening degree is kept; if the temperature of the coil is more than 6 ℃ and is Tp, the temperature is increased by 5 ℃ every 1 min; when the 1.5P air conditioner is in the second control mode, rapidly reducing the temperature to 60% of the current rotating speed, if the current rotating speed of the air conditioner is 1300r/min, reducing the temperature to 780r/min, and if the coil temperature Tp is more than or equal to 11 ℃, reducing the temperature by 5 degrees every 1 min; if the coil temperature Tp is more than or equal to 11 ℃ and is more than or equal to 9 ℃, the existing opening degree is kept; if the temperature of the coil is 9 ℃ and is larger than the temperature Tp of the coil, the temperature is increased by 5 ℃ every 1 min; when the 1.5P air conditioner is in the third control mode, the current rotating speed is rapidly reduced to 70%, if the current rotating speed of the air conditioner is 1300r/min, the current rotating speed is reduced to 910r/min, and if the coil temperature Tp is more than or equal to 14 ℃, the current rotating speed is reduced by 5 degrees every 1 min; if the temperature Tp of the coil pipe is more than or equal to 12 ℃, the existing opening degree is kept; if 12 ℃ is higher than the coil temperature Tp, the temperature is increased by 5 degrees every 1 min.
[ second embodiment ]
Referring to fig. 3, an embodiment of the present application further provides a fresh air control device 100 for a refrigeration mode of an air conditioner, including, for example: an acquiring module 110, configured to acquire an outdoor fresh air temperature Txg, an indoor temperature Tsg, an outdoor fresh air humidity Hx, and an indoor humidity Hs; the control module 120 is configured to adjust the air conditioner to enter a corresponding first control mode, second control mode, and third control mode according to a difference between the outdoor fresh air temperature Txg and the indoor temperature Tsg and a difference between the outdoor fresh air humidity Hx and the indoor humidity Hs.
In a specific embodiment, the obtaining module 110 and the control module 120 of the fresh air control device 100 for heating mode of the air conditioner cooperate to implement the fresh air control method for cooling mode of the first embodiment, which is not described herein again.
[ third embodiment ]
Referring to fig. 4, a schematic structural diagram of an air conditioner according to a fourth embodiment of the present application is provided, the air conditioner 200 includes, for example, a processor 230 and a memory 210 electrically connected to the processor 230, the memory 210 stores a computer program 211, and the processor 230 loads the computer program 211 to implement the fresh air control method in the cooling mode according to the first embodiment.
[ fourth embodiment ]
Referring to fig. 5, the present embodiment further provides a readable storage medium 300, where the readable storage medium 300 stores computer executable instructions 310, and when the computer executable instructions 310 are read and executed by a processor, the air conditioner in which the readable storage medium 300 is located is controlled to implement the cooling mode fresh air control method as described in the first embodiment.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. The above-described embodiments of the apparatus are merely illustrative, and, for example, functional modules in various embodiments of the present application may be integrated together to form a single part, or each module may exist alone, or two or more modules may be integrated to form a single part.
The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned readable storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims (5)
1. A fresh air control method in a refrigeration mode introduces outdoor fresh air into an indoor unit, and conveys the outdoor fresh air into a room after cooling and dehumidifying through an evaporator, and is characterized by comprising the following steps:
when the air conditioner is in a refrigeration mode, acquiring outdoor fresh air temperature Txg, indoor temperature Tsg, outdoor fresh air humidity Hx and indoor humidity Hs;
the air conditioner is regulated to enter a corresponding first control mode, a second control mode and a third control mode through the difference value between the outdoor fresh air temperature Txg and the indoor temperature Tsg and the difference value between the outdoor fresh air humidity Hx and the indoor humidity Hs;
txg-tsg=tx, wherein Txg is outdoor fresh air temperature, tsg is indoor temperature, and Tx is temperature difference;
hx-hs=hx, where Hx is fresh air humidity, hs is indoor humidity, and Hx is humidity difference;
when Tx is more than or equal to T1 and Hx is more than or equal to H1, the air conditioner enters a first control mode; when T1 is more than Tx and more than or equal to T2, and H1 is more than or equal to Hx and more than or equal to H2, the air conditioner enters a second control mode; when T2 is more than Tx and H2 is more than Hx, the air conditioner enters a third control mode;
wherein, T1 is a first temperature threshold, T2 is a second temperature threshold, H1 is a first humidity threshold, and H2 is a second temperature threshold;
the first control mode, the second control mode, and the third control mode include: increasing the compressor frequency; the rotating speed of the outdoor fan is improved; increasing the compressor frequency to a first operating frequency f1 when in the first control mode; adjusting the rotating speed of the outdoor fan to a first rotating speed n1 of the outdoor fan; increasing the compressor frequency to a second operating frequency f2 when in the second control mode; adjusting the rotating speed of the outdoor fan to a second rotating speed n2 of the outdoor fan; increasing the compressor frequency to a third operating frequency f3 when in the third control mode; adjusting the rotating speed of the outdoor fan to a third rotating speed n3 of the outdoor fan; wherein f1 > f2 > f3, n1 > n2 > n3;
the first control mode, the second control mode, and the third control mode further include: reducing the rotating speed of an indoor fan; acquiring a coil temperature Tp, and adjusting the opening of an electronic expansion valve according to the coil temperature Tp; when the first control mode is adopted, the rotating speed of the indoor fan is reduced to a first rotating speed n4 of the indoor fan; when Tp is more than or equal to T3, increasing the opening of the electronic expansion valve; when T3 is more than Tp and more than or equal to T4, the opening of the electronic expansion valve is unchanged; when T4 is more than Tp, reducing the opening of the electronic expansion valve; when the control mode is in the second control mode, the rotating speed of the indoor fan is reduced to a second rotating speed n5 of the indoor fan; when Tp is more than or equal to T5, increasing the opening of the electronic expansion valve; when T5 is more than Tp and more than or equal to T6, the opening of the electronic expansion valve is unchanged; when T6 is more than Tp, reducing the opening of the electronic expansion valve; when the indoor fan is in the third control mode, the rotating speed of the indoor fan is reduced to a third rotating speed n6 of the indoor fan; when Tp is more than or equal to T7, increasing the opening of the electronic expansion valve; when T7 is more than Tp and more than or equal to T8, the opening of the electronic expansion valve is unchanged; when T8 is more than Tp, reducing the opening of the electronic expansion valve; wherein T3 is a third temperature threshold, T4 is a fourth temperature threshold, T5 is a fifth temperature threshold, T6 is a sixth temperature threshold, T7 is a seventh temperature threshold, T8 is an eighth temperature threshold, T3 is less than T5 and less than T7, T4 is less than T6 and less than T8, and n4 is less than n5 and less than n6.
2. The cooling mode fresh air control method according to claim 1, wherein acquiring the outdoor fresh air humidity Hx and the indoor humidity Hs includes:
acquiring the outdoor fresh air temperature Txg and the fresh air wet bulb temperature Txs, wherein hx= Txs/Txg;
and acquiring the indoor temperature Tsg and the indoor wet bulb temperature Tss, wherein Hs=Tss/Tsg.
3. The utility model provides a cold mode new trend controlling means of air conditioner which characterized in that includes:
the acquisition module is used for acquiring outdoor fresh air temperature Txg, indoor temperature Tsg, outdoor fresh air humidity Hx and indoor humidity Hs;
the control module is used for adjusting the air conditioner to enter a corresponding first control mode, a second control mode and a third control mode according to the difference value between the outdoor fresh air temperature Txg and the indoor temperature Tsg and the difference value between the outdoor fresh air humidity Hx and the indoor humidity Hs;
wherein, the acquisition module and the control module cooperate to realize the fresh air control method in the refrigeration mode according to any one of claims 1-2.
4. An air conditioner characterized by a processor, a memory and a program or instruction stored on said memory and executable on said processor, said program or instruction implementing the steps of the cooling mode fresh air control method according to any one of claims 1-2 when executed by said processor.
5. A readable storage medium, characterized in that the readable storage medium comprises a stored computer program, wherein the computer program, when being executed by a processor, controls a device in which the storage medium is located to perform the steps of the cooling mode fresh air control method according to any one of claims 1-2.
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