CN113970161B - Control method of air conditioning equipment with fresh air function - Google Patents

Control method of air conditioning equipment with fresh air function Download PDF

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CN113970161B
CN113970161B CN202111430518.5A CN202111430518A CN113970161B CN 113970161 B CN113970161 B CN 113970161B CN 202111430518 A CN202111430518 A CN 202111430518A CN 113970161 B CN113970161 B CN 113970161B
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fresh air
gear
preset
inner ring
condition
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CN113970161A (en
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韩雷
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Aux Air Conditioning Co Ltd
Ningbo Aux Electric Co Ltd
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Aux Air Conditioning Co Ltd
Ningbo Aux Electric Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/88—Electrical aspects, e.g. circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
    • 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
    • F24F2110/50—Air quality properties
    • F24F2110/64—Airborne particle content
    • 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)
  • Human Computer Interaction (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention relates to the technical field of intelligent control of air conditioning equipment, in particular to a control method of air conditioning equipment with a fresh air function. A control method of air conditioning equipment with fresh air function comprises the following steps: s100, starting up the air conditioning equipment, and starting up a fresh air fan; s200, determining a gear of the fresh air fan according to the fresh air state monitoring value; s300, determining an operation mode of air conditioning equipment, and starting a compressor; s400, closing the air conditioning equipment; s500, closing the fresh air function. The control method of the air conditioning equipment with the fresh air function has the following advantages: the automatic switch-over air conditioning mode opens and closes the air conditioner, adjusts the gear of new trend fan and the frequency of outer quick-witted, fully realizes energy-conservation and travelling comfort, can all-weather operation, and the fresh air volume is sufficient, can realize thoroughly air-purifying, improves user experience.

Description

Control method of air conditioning equipment with fresh air function
Technical Field
The invention relates to the technical field of intelligent control of air conditioning equipment, in particular to a control method of air conditioning equipment with a fresh air function.
Background
With the improvement of living standard of people and the increasing of air pollution, the requirements of users on the performance of the air conditioner are also higher and higher, and the fresh air conditioner is widely popularized. The fresh air conditioner not only can adjust indoor temperature and humidity to the degree suitable for human bodies, but also can purify air and remove harmful gases in the air, such as formaldehyde and the like, and can reduce PM2.5 in the air, thereby protecting the physical health of users and being loved by the users.
However, the existing fresh air conditioner has relatively single function, a single control method and insufficient linkage control by combining the operation characteristics of the air conditioner, and has the defects of energy conservation and comfort. For example, single mode operation is limited by the difference between the internal and external ambient temperatures and cannot be performed all-weather. When the temperature difference between the inside and outside environment is large, the fresh air quantity is easy to be insufficient. The user needs to adjust the air conditioning equipment according to own feeling, and cannot thoroughly purify the air, so that the user experience is reduced.
Disclosure of Invention
In view of the above, the present invention aims to provide a control method for an air conditioning apparatus with a fresh air function, which uses fresh air as a main function mode, automatically switches an air conditioning mode according to indoor temperature and humidity, and turns on and off an air conditioner, and adjusts a gear position of a fresh air fan and a frequency of an external machine, thereby solving the problems of insufficient energy saving and comfort, all-weather operation, insufficient fresh air volume, incomplete air purification, reduced user experience, and the like.
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
a control method of air conditioning equipment with fresh air function comprises the following steps:
s100, starting the air conditioning equipment, setting a fresh air mode, and starting a fresh air fan when preset conditions of the fresh air mode meet the starting conditions of the fresh air fan;
s200, determining a gear of the fresh air fan according to the fresh air state monitoring value;
s300, according to the detection period t n Indoor ambient temperature T in Inner ring Heat exchange temperature T with outdoor unit Heat exchange Determining an operation mode of air conditioning equipment, and starting a compressor;
when the air conditioner is in the refrigeration mode, T Inner ring When the air conditioner is lifted, the refrigerating function is enhanced;
or,
when the air conditioner is in a heating mode, T Inner ring When descending, the heating function is enhanced;
s400, closing the air conditioning equipment when the preset condition of closing the air conditioning equipment is met;
s500, closing the fresh air function when the preset condition of closing the fresh air is met.
Further, in step S200, the fresh air fan gear at least includes a stop gear and a running gear.
Further, in step S200, the method for determining the gear of the fresh air fan includes:
when the fresh air state monitoring value accords with the stop gear condition, the fresh air fan gear is the stop gear;
and when the fresh air state monitoring value exceeds the stop gear condition and accords with the preset starting gear condition, the fresh air fan gear is the running gear.
Further, the preset starting gear condition includes: a first preset gear condition, a second preset gear condition, a third preset gear condition, a fourth preset gear condition;
the operating gear includes: a first gear, a second gear, a third gear and a fourth gear;
when the fresh air state monitoring value is between a first preset gear condition and a second preset gear condition, the gear of the fresh air fan is the first gear;
when the fresh air state monitoring value is between a second preset gear condition and a third preset gear condition, the gear of the fresh air fan is the second gear;
when the fresh air state monitoring value is between a third preset gear condition and a fourth preset gear condition, the gear of the fresh air fan is the third gear;
and when the fresh air state monitoring value exceeds a fourth preset gear condition, the gear of the fresh air fan is the fourth gear.
Further, the operation modes include a cooling mode and a heating mode.
Further, the gear of the fresh air fan is switched after the preset time.
Further, the fresh air starting condition comprises that the PM2.5 concentration is larger than a preset value.
Further, the air conditioning apparatus includes two types of a first fresh air module having an all heat exchanger and a second fresh air module having the all heat exchanger removed.
Further, in step S300, the control method of the enhanced cooling mode and the enhanced heating mode of the air conditioning apparatus having the first fresh air module includes:
when the preset detection period length t is reached n In, if T Inner ring -T Heat exchange ＜△T 1 And at t 0 Time and t n Time T Inner ring Is the difference (T) Inner ring n -T Inner ring 0 ) Greater than DeltaT 2 When the refrigerating mode is started;
when at t n Time and t n+1 The difference (T) Inner ring n+1 -T Inner ring n ) Less than DeltaT 3 When the refrigerating mode is closed;
when the preset detection period length t is reached n In, if T Inner ring -T Heat exchange ＞△T 1 And at t 0 Time and t n Time T Inner ring Is the difference (T) Inner ring n -T Inner ring 0 ) Less than DeltaT 3 When the heating mode is started;
when at t n Time and t n+1 Time T Inner ring Is the difference (T) Inner ring n+1 -T Inner ring n ) Greater than DeltaT 2 When the heating mode is turned off,
wherein,,
ΔT 1 a first preset temperature difference value;
ΔT 2 is a second preset temperature difference;
ΔT 3 for a third preset temperature difference
ΔT3＜ΔT 1 ＜ΔT 2 。
Further, in step S300, the method for controlling the cooling mode and the heating mode of the air conditioning apparatus having the second fresh air module includes:
when the preset detection period length t is reached n In, at t 0 Time and t n Time T Inner ring Is the difference (T) Inner ring n -T Inner ring 0 ) Greater than DeltaT 4 When the refrigerating mode is started;
when at t n Time and t n+1 The difference (T) Inner ring n+1 -T Inner ring n ) Less than DeltaT 5 When the refrigerating mode is closed;
when the preset detection period length t is reached n In, at t 0 Time and t n Time T Inner ring Is the difference (T) Inner ring n -T Inner ring 0 ) Less than DeltaT 6 When the heating mode is started;
when at t n Time and t n+1 Time T Inner ring Is the difference (T) Inner ring n+1 -T Inner ring n ) Greater than DeltaT 6 When the heating mode is turned off,
wherein,,
ΔT 4 a fourth preset temperature difference value;
ΔT 5 a fifth preset temperature difference value;
ΔT 6 for a sixth preset temperature difference
ΔT 5 ＜ΔT 4 ＜ΔT 6 。
Compared with the prior art, the control method of the air conditioning equipment with the fresh air function has the following advantages:
the technical scheme has the advantages that the fresh air is adopted as a main functional mode, the air conditioning mode is automatically switched according to the indoor temperature and humidity, the air conditioner is turned on and off, the gear of the fresh air fan and the frequency of an external machine are regulated, the energy conservation and the comfortableness are fully realized, the all-weather operation can be realized, the fresh air quantity is sufficient, the thorough air purification can be realized, and the user experience is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
fig. 1 is a flowchart of a control method of an air conditioning apparatus with fresh air function according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an air conditioning apparatus with a fresh air function, which is provided with a fresh air module of a total heat exchanger according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of an air conditioning apparatus with a fresh air function without a total heat exchanger according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a control system of an air conditioning apparatus with a fresh air function according to an embodiment of the present invention.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
The description of "first," "second," "upper," "lower," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or the number of technical features indicated. Thus, a feature defining "first", "second", "upper", "lower" may include at least one such feature, either explicitly or implicitly. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the combination between the embodiments, and all the technical solutions are within the scope of protection claimed by the present invention.
The invention discloses a control system of an air conditioner with a fresh air function, as shown in fig. 4, the system comprises a control module, and a CO2 sensor, a formaldehyde sensor, a PM2.5 sensor, a fresh air module, an inner ring temperature sensing bulb, an outer ring temperature sensing bulb and a remote controller which are respectively connected with the control module.
The invention will be described in detail below with reference to the drawings in connection with embodiments.
As shown in fig. 1, a control method of an air conditioning apparatus having a fresh air function includes:
s100, starting the air conditioning equipment, setting a fresh air mode, and starting a fresh air fan when preset conditions of the fresh air mode meet the starting conditions of the fresh air fan;
the fresh air starting condition comprises that the PM2.5 concentration is larger than a preset value. The preset value is preferably 0. Namely, when the PM2.5 is detected to be contained in the atmosphere, fresh air is started.
S200, determining a gear of the fresh air fan according to the fresh air state monitoring value;
the fresh air fan gear at least comprises a stop gear and a running gear, and the method for determining the fresh air fan gear comprises the following steps:
when the fresh air state monitoring value accords with the stop gear condition, the fresh air fan gear is the stop gear;
and when the fresh air state monitoring value exceeds the stop gear condition and accords with the preset starting gear condition, the fresh air fan gear is the running gear.
The preset starting gear condition comprises: a first preset gear condition, a second preset gear condition, a third preset gear condition, a fourth preset gear condition;
the stop condition is preferably PM2.5 at a concentration of (- ≡0)]μg/m 3 。
The first preset gear condition preferably has a concentration of PM2.5 of (0, 50]μg/m 3 The second preset gear condition is that the concentration of PM2.5 is (50, 115)]μg/m 3 The third preset gear condition is that the concentration of PM2.5 is (115,250)]μg/m 3 The fourth preset gear condition is that the concentration of PM2.5 is (250, ++]μg/m 3 。
The operating gear includes: first gear, second gear, third gear, fourth gear.
The first gear is preferably 200-300rpm, the second gear is preferably 300-400rpm, the third gear is preferably 400-500rpm, and the fourth gear is preferably 200-300rpm.
As shown in table 1, when the fresh air state monitoring value is between a first preset gear condition and a second preset gear condition, the fresh air fan gear is the first gear;
when the fresh air state monitoring value is between a second preset gear condition and a third preset gear condition, the gear of the fresh air fan is the second gear;
when the fresh air state monitoring value is between a third preset gear condition and a fourth preset gear condition, the gear of the fresh air fan is the third gear;
and when the fresh air state monitoring value exceeds a fourth preset gear condition, the gear of the fresh air fan is the fourth gear.
TABLE 1
Figure BDA0003379996020000061
The operation modes include a cooling mode and a heating mode. And switching the gear of the fresh air fan after the preset time. The preset time is preferably 5 minutes.
S300, according to the detection period t n Indoor ambient temperature T in Inner ring Heat exchange temperature T with outdoor unit Heat exchange Determining an operation mode of air conditioning equipment, and starting a compressor;
when the air conditioner is in the refrigeration mode, T Inner ring When rising, the refrigerating function is enhanced. Alternatively, when the air conditioner is in the heating mode, T Inner ring When descending, the heating function is enhanced;
specifically, the air conditioning equipment comprises a first fresh air module with a total heat exchanger and a second fresh air module without the total heat exchanger.
Further, in step S300, the control method of the enhanced cooling mode and the enhanced heating mode of the air conditioning apparatus having the first fresh air module includes:
when the preset detection period length t is reached n In, if T Inner ring -T Heat exchange ＜△T 1 And at t 0 Time and t n Time T Inner ring Is the difference (T) Inner ring n -T Inner ring 0 ) Greater than DeltaT 2 When the refrigerating mode is started;
when at t n Time and t n+1 The difference (T) Inner ring n+1 -T Inner ring n ) Less than DeltaT 3 When the refrigerating mode is closed;
when the preset detection period length t is reached n In, if T Inner ring -T Heat exchange ＞△T 1 And at t 0 Time and t n Time T Inner ring Is the difference (T) Inner ring n -T Inner ring 0 ) Less than DeltaT 3 When the heating mode is started;
when at t n Time and t n+1 Time T Inner ring Is the difference (T) Inner ring n+1 -T Inner ring n ) Greater than DeltaT 2 When the heating mode is turned off,
wherein,,
ΔT 1 a first preset temperature difference value;
ΔT 2 is a second preset temperature difference;
ΔT 3 for a third preset temperature difference
ΔT 3 ＜ΔT 1 ＜ΔT 2 。
Preferably DeltaT 1 ＝0℃，ΔT 2 ＝1℃，ΔT 3 ＝-1℃。
Further, in step S300, the method for controlling the cooling mode and the heating mode of the air conditioning apparatus having the second fresh air module includes:
when the preset detection period length t is reached n In, at t 0 Time and t n Time T Inner ring Is the difference (T) Inner ring n -T Inner ring 0 ) Greater than DeltaT 4 When the refrigerating mode is started;
when at t n Time and t n+1 The difference (T) Inner ring n+1 -T Inner ring n ) Less than DeltaT 5 When the refrigerating mode is closed;
when the preset detection period length t is reached n In, at t 0 Time and t n Time T Inner ring Is the difference (T) Inner ring n -T Inner ring 0 ) Less than DeltaT 6 When the heating mode is started;
when at t n Time and t n+1 Time T Inner ring Is the difference (T) Inner ring n+1 -T Inner ring n ) Greater than DeltaT 6 When the heating mode is turned off,
wherein,,
ΔT 4 a fourth preset temperature difference value;
ΔT 5 a fifth preset temperature difference value;
ΔT 6 for a sixth preset temperature difference
ΔT 5 ＜ΔT 4 ＜ΔT 6 。
Preferably DeltaT 4 ＝0.5℃，ΔT 5 ＝-1.5℃，ΔT 6 ＝1.5℃。
S400, closing the air conditioning equipment when the preset condition of closing the air conditioning equipment is met;
s500, closing the fresh air function when the preset condition of closing the fresh air is met.
Through the method, the fresh air is adopted as a main functional mode, the air conditioning mode is automatically switched according to the indoor temperature and humidity, the air conditioner is turned on and off, the gear of the fresh air fan and the frequency of an external machine are regulated, the energy conservation and the comfortableness are fully realized, the all-weather operation can be realized, the fresh air quantity is sufficient, the thorough air purification can be realized, and the user experience is improved.
When the user sets an intelligent fresh air mode, fresh air is used as a main function mode, the priority is higher than that of other modes, and the air conditioner performs driven control around the fresh air effect. The above method is described in one embodiment below.
According to different fresh air module structures, the control modes are different.
1. Fresh air module with total heat exchanger, as shown in fig. 2:
(1) The method is characterized in that the method is required to meet the requirement that a user only sets a fresh air starting mode from a shutdown state, and other modes are not set to be started.
(2) And judging whether the opening condition of the fresh air fan is met according to the preset condition in the fresh air mode.
(3) After the fresh air fan is started, the rotating speed is controlled according to the control logic shown in the table 2:
TABLE 2
Figure BDA0003379996020000081
Figure BDA0003379996020000091
(4) After the fresh air module fan is started, if the preset detection period length tn is met, if T Inner ring -T Heat exchange ＜△T 1 (preferably DeltaT) 1 =0) and at t 0 Time and t n Time T Inner ring Is the difference (T) Inner ring n -T Inner ring 0 )＞△T 2 (preferably DeltaT) 2 And (1 ℃), the air conditioner refrigeration operation is started to ensure that the room temperature is within the comfort range of the user.
(5) At t n Time and t n+1 Time T Inner ring Is the difference (T) Inner ring n+1 -T Inner ring n )＜△T 3 (preferably DeltaT) 3 And (3) closing the air conditioner refrigeration operation when the temperature is minus 1 ℃.
(6) If the fresh air module detects that the preset condition is met and the fan stops running, the refrigerating mode also stops running.
(7) If the fresh air module fan is started, and then the preset detection period length tn is set, if the T inner ring-T heat exchange is > [ delta ] T1 (preferably [ delta ] T1=0 DEG), and the difference value of the T inner ring at the time T0 and the T inner ring at the time tn (T inner ring n-T inner ring 0) < [ delta ] T3 (preferably [ delta ] T3= -1 ℃), the air-conditioning heat operation is started to ensure that the room temperature is within the user comfort range.
(8) If at t n Time and t n+1 Time T Inner ring Is the difference (T) Inner ring n+1 -T Inner ring n )＞△T 2 (preferably DeltaT) 2 Air conditioning heating operation is turned off (=1℃).
(9) If the fresh air module detects that the preset condition is met and the fan stops running, the heating mode also stops running.
2. Fresh air module without total heat exchanger as shown in fig. 3:
(1) The method is characterized in that the method is required to meet the requirement that a user only sets a fresh air starting mode from a shutdown state, and other modes are not set to be started.
(2) And judging whether the opening condition of the fresh air fan is met according to the preset condition in the fresh air mode.
(3) After the fresh air fan is started, the rotating speed is controlled according to the control logic shown in the table 2:
(4) After the fan of the fresh air module is started, the fan is started at a preset detection period length t n If t 0 Time and t n Time T Inner ring Is the difference (T) Inner ring n -T Inner ring 0 )＞△T 4 (preferably DeltaT) 4 =0.5 ℃), the air conditioning cooling operation is turned on to ensure that the room temperature is within the user comfort range.
(5) If at t n Time and t n+1 Time T Inner ring Is the difference (T) Inner ring n+1 -T Inner ring n )＜△T 5 (preferably DeltaT) 5 -1.5 ℃), the air conditioning cooling mode is turned off.
(6) If the fresh air module detects that the preset condition is met and the fan stops running, the refrigerating mode also stops running.
(7) After the fan of the fresh air module is started, the fan is started at a preset detection period length t n If t 0 Time and t n Time T Inner ring Is the difference (T) Inner ring n -T Inner ring 0 )＜△T 6 (preferably DeltaT) 6 =1.5 ℃), then the air conditioning hot run is turned on to ensure that the room temperature is within the user comfort range.
(8) If at t n Time and t n+1 Time T Inner ring Is the difference (T) Inner ring n+1 -T Inner ring n )＞△T 6 (preferably DeltaT) 6 =1.5 ℃), the air conditioning heating operation is turned off.
(9) If the fresh air module detects that the preset condition is met and the fan stops running, the heating mode also stops running.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It is to be understood that the invention is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims (7)

1. A control method of an air conditioning apparatus having a fresh air function, the air conditioning apparatus including two types of a first fresh air module having a total heat exchanger and a second fresh air module excluding the total heat exchanger, the control method of the air conditioning apparatus having the first fresh air module comprising:
s100, starting the air conditioning equipment, setting a fresh air mode, and starting a fresh air fan when preset conditions of the fresh air mode meet the starting conditions of the fresh air fan;
s200, determining a gear of the fresh air fan according to the fresh air state monitoring value;
s300, according to the detection period t n Indoor ambient temperature T in Inner ring Heat exchange temperature T with outdoor unit Heat exchange Determining an operation mode of air conditioning equipment, and starting a compressor;
when the air conditioner is in the refrigeration mode, T Inner ring When the air conditioner is lifted, the refrigerating function is enhanced;
when the preset detection period length t is reached n In, if T Inner ring -T Heat exchange ＜△T 1 And at t 0 Time and t n Time T Inner ring Is the difference (T) Inner ring n -T Inner ring 0 ) Greater than DeltaT 2 When the refrigerating mode is started;
when at t n Time and t n+1 The difference (T) Inner ring n+1 -T Inner ring n ) Less than DeltaT 3 When the refrigerating mode is closed;
or,
when the air conditioner is in a heating mode, T Inner ring When descending, the heating function is enhanced;
when the preset detection period length t is reached n In, if T Inner ring -T Heat exchange ＞△T 1 And at t 0 Time and t n Time T Inner ring Is the difference (T) Inner ring n -T Inner ring 0 ) Less than DeltaT 3 When the heating mode is started;
when at t n Time and t n+1 Time T Inner ring Is the difference (T) Inner ring n+1 -T Inner ring n ) Greater than DeltaT 2 When the heating mode is turned off,
wherein,,
ΔT 1 a first preset temperature difference value;
ΔT 2 is a second preset temperature difference;
ΔT 3 for a third preset temperature difference
ΔT3＜ΔT 1 ＜ΔT 2 ；
S400, closing the air conditioning equipment when the preset condition of closing the air conditioning equipment is met;
s500, closing the fresh air function when the preset condition of closing the fresh air is met.
2. The method for controlling an air conditioner having a fresh air function according to claim 1,
in step S200, the fresh air fan gear includes at least a stop gear and a running gear.
3. The method for controlling an air conditioner having a fresh air function according to claim 2, wherein,
in step S200, the method for determining the gear of the fresh air fan includes:
when the fresh air state monitoring value accords with the stop gear condition, the fresh air fan gear is the stop gear;
and when the fresh air state monitoring value exceeds the stop gear condition and accords with the preset starting gear condition, the fresh air fan gear is the running gear.
4. The method for controlling an air conditioner having a fresh air function according to claim 3,
the preset starting gear condition comprises: a first preset gear condition, a second preset gear condition, a third preset gear condition, a fourth preset gear condition;
the operating gear includes: a first gear, a second gear, a third gear and a fourth gear;
when the fresh air state monitoring value is between a first preset gear condition and a second preset gear condition, the gear of the fresh air fan is the first gear;
when the fresh air state monitoring value is between a second preset gear condition and a third preset gear condition, the gear of the fresh air fan is the second gear;
when the fresh air state monitoring value is between a third preset gear condition and a fourth preset gear condition, the gear of the fresh air fan is the third gear;
and when the fresh air state monitoring value exceeds a fourth preset gear condition, the gear of the fresh air fan is the fourth gear.
5. The method for controlling an air conditioner having a fresh air function according to claim 4,
the operation modes include a cooling mode and a heating mode.
6. The method for controlling an air conditioner having a fresh air function according to claim 5, wherein,
and switching the gear of the fresh air fan after the preset time.
7. The method for controlling an air conditioner having a fresh air function according to claim 1,
the fresh air starting condition comprises that the PM2.5 concentration is larger than a preset value.
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CN104776558B (en) * 2015-03-25 2018-10-23 珠海格力电器股份有限公司 Fresh air system and its valve area control method
CN108679791B (en) * 2018-04-16 2020-07-28 北京晶海科技有限公司 Air conditioner and purification combined operation control method and control system
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CN108592335A (en) * 2018-04-27 2018-09-28 广东美的制冷设备有限公司 Inletting fresh air control method, air conditioner and the readable storage medium storing program for executing of air conditioner
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CN112413735A (en) * 2020-12-03 2021-02-26 珠海格力电器股份有限公司 Fresh air conditioner control method and device, storage medium and fresh air conditioner
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