CN114484606A - Fresh air conditioner, control method and device thereof and readable storage medium - Google Patents

Fresh air conditioner, control method and device thereof and readable storage medium Download PDF

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Publication number
CN114484606A
CN114484606A CN202210146447.4A CN202210146447A CN114484606A CN 114484606 A CN114484606 A CN 114484606A CN 202210146447 A CN202210146447 A CN 202210146447A CN 114484606 A CN114484606 A CN 114484606A
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China
Prior art keywords
temperature
indoor
difference
outdoor
adjusting
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CN202210146447.4A
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CN114484606B (en
Inventor
秦宪
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Aux Air Conditioning Co Ltd
Ningbo Aux Electric Co Ltd
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Aux Air Conditioning Co Ltd
Ningbo Aux Electric Co Ltd
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Priority to CN202210146447.4A priority Critical patent/CN114484606B/en
Publication of CN114484606A publication Critical patent/CN114484606A/en
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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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—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
    • 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
    • F24F11/00—Control or safety arrangements
    • F24F11/89—Arrangement or mounting of control or safety devices
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F24F2110/12—Temperature of the outside air
    • 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

Abstract

The invention provides a control method of a fresh air conditioner, which comprises the following steps: under the condition that the fresh air conditioner is in a heating mode, acquiring indoor environment temperature and outdoor environment temperature; calculating the difference between the indoor environment temperature and the outdoor environment temperature; and adjusting the rotating speed of an indoor fan, the rotating speed of an outdoor fan, the frequency of a compressor, the opening of an electronic expansion valve and the electric auxiliary heating of the indoor unit of the fresh air conditioner according to the difference value. The invention solves the problems that: the technical scheme in the related art can not effectively reduce the influence of the fresh air on the indoor temperature.

Description

Fresh air conditioner, control method and device thereof and readable storage medium
Technical Field
The invention relates to the technical field of air conditioners, in particular to a fresh air conditioner, a control method and a control device of the fresh air conditioner and a readable storage medium.
Background
The fresh air conditioner is a healthy and comfortable air conditioner with fresh air function, and introduces outdoor fresh air by utilizing an induced draft fan of the air conditioner so as to replace relatively turbid indoor air, realize the circulation and ventilation between room air and outdoor air and also have the function of purifying air.
Under the mode of heating, because outdoor temperature is lower, when the new trend is opened, because outdoor temperature often has great difference in temperature with indoor temperature, the new trend can reduce room temperature suddenly. Although the variable frequency air conditioner can control parameters such as the running frequency of a compressor, the rotating speed of an indoor fan and an outdoor fan, the opening degree of an electronic expansion valve and the like after the indoor temperature changes, so that the difference between the indoor temperature and the temperature set by a user is reduced, the mode has certain hysteresis, the indoor temperature is obviously changed when the variable frequency air conditioner is automatically adjusted, the user feels poor in comfort, and meanwhile, the energy consumption of the air conditioner can be increased due to large fluctuation of the heat load.
It can be seen that the problems in the related art are: the technical scheme in the related art can not effectively reduce the influence of the fresh air on the indoor temperature.
Disclosure of Invention
The invention solves the problems that: the technical scheme in the related art can not effectively reduce the influence of fresh air on the indoor temperature.
In order to solve the above problems, a first objective of the present invention is to provide a control method for a fresh air conditioner.
The second purpose of the invention is to provide a control device of the fresh air conditioner.
The third purpose of the invention is to provide a fresh air conditioner.
A fourth object of the present invention is to provide a readable storage medium.
In order to achieve the first object of the present invention, an embodiment of the present invention provides a control method for a fresh air conditioner, where the control method includes: under the condition that the fresh air conditioner is in a heating mode, acquiring indoor environment temperature and outdoor environment temperature; calculating the difference between the indoor environment temperature and the outdoor environment temperature; and adjusting the rotating speed of an indoor fan, the rotating speed of an outdoor fan, the frequency of a compressor, the opening of an electronic expansion valve and the electric auxiliary heating of the indoor unit of the fresh air conditioner according to the difference value.
The effect that this embodiment can reach is: this embodiment is through calculating the difference of indoor ambient temperature and outdoor ambient temperature, adjusts fresh air conditioner's indoor fan rotational speed, outdoor fan rotational speed, compressor frequency, electronic expansion valve opening and indoor electromechanical auxiliary heating simultaneously according to the difference, can carry out quick response to the fresh air temperature of difference. For example, under the condition of a large difference value, namely when the indoor environment temperature is higher than the outdoor environment temperature, the heating effect of the fresh air conditioner is greatly improved by simultaneously adjusting the indoor fan rotating speed, the outdoor fan rotating speed, the compressor frequency, the opening degree of the electronic expansion valve and the indoor electromechanical auxiliary heat of the fresh air conditioner; under the condition of small difference, namely when the indoor environment temperature is lower than the outdoor environment temperature, the heating effect of the fresh air conditioner is improved to a small extent by simultaneously adjusting the indoor fan rotating speed, the outdoor fan rotating speed, the compressor frequency, the opening degree of the electronic expansion valve and the indoor electromechanical auxiliary heat of the fresh air conditioner; under the condition that the difference value is a negative value, namely the indoor environment temperature is lower than the outdoor environment temperature, the fresh air temperature is higher at the moment, the temperature is higher than the environment temperature of a user, and the heating capacity is reduced by adjusting the indoor fan rotating speed, the outdoor fan rotating speed, the compressor frequency, the opening degree of the electronic expansion valve and the indoor electromechanical auxiliary heat of the fresh air conditioner at the moment, so that the overhigh power consumption of the air conditioner is avoided. In the moment that the new trend is introduced, the comfort and the operational reliability that the new trend air conditioner used can be improved to this embodiment, have improved user's use satisfaction.
In an embodiment of the present invention, adjusting the indoor fan speed, the outdoor fan speed, the compressor frequency, the electronic expansion valve opening degree, and the indoor electromechanical auxiliary heat of the fresh air conditioner according to the difference specifically includes: acquiring the temperature of a coil pipe of a heat exchanger of an indoor unit, the exhaust temperature of the outdoor unit and the set temperature of the indoor unit; adjusting the rotating speed of the indoor fan according to the difference and the set temperature of the indoor unit; adjusting the rotating speed of the outdoor fan according to the difference and the set temperature of the indoor unit; adjusting the frequency of the compressor according to the difference, the exhaust temperature of the outdoor unit and the set temperature of the indoor unit; and adjusting the opening of the electronic expansion valve according to the difference, the temperature of the coil of the heat exchanger of the indoor unit and the exhaust temperature of the outdoor unit.
The effect that this embodiment can reach is: the temperature sensing device of the coil pipe of the indoor unit heat exchanger is arranged on the U pipe with the highest temperature of the indoor heat exchanger, so that the highest heat exchange temperature in a heating mode can be detected, and the phenomenon that the reliability of the operation of an air conditioner is influenced due to the overhigh temperature of the indoor heat exchanger is prevented; the outdoor unit exhaust temperature sensing device is arranged on the exhaust pipe of the air conditioner and is close to the exhaust port of the compressor as far as possible, so that the truest exhaust temperature can be detected, the running state of the air conditioner can be adjusted through the measured temperature, the exhaust temperature is not too high, and the running reliability of the air conditioner is improved. After the temperature of the coil pipe of the heat exchanger of the indoor unit, the exhaust temperature of the outdoor unit and the set temperature of the indoor unit are obtained, the rotating speed of an indoor fan, the rotating speed of an outdoor fan, the frequency of a compressor and the opening degree of an electronic expansion valve of the fresh air conditioner are adjusted according to the difference value and the three temperatures, corresponding parts of the fresh air conditioner can be efficiently adjusted according to different conditions, the influence of introduced fresh air on the indoor environment temperature is reduced, and the comfort level of a user using the fresh air conditioner is further improved.
In an embodiment of the present invention, adjusting the rotation speed of the indoor fan according to the difference and the indoor unit set temperature specifically includes: when the difference value is smaller than a first temperature threshold value and the outdoor environment temperature is larger than the set temperature of the indoor unit, adjusting the rotating speed of the indoor fan to be 0; and when the difference is greater than or equal to the first temperature threshold, or the difference is less than the first temperature threshold and the outdoor environment temperature is less than or equal to the set temperature of the indoor unit, adjusting the rotating speed of the indoor fan according to the difference.
The effect that this embodiment can reach is: the rotating speed of the indoor fan is adjusted according to the difference value and the set temperature of the indoor unit, the rotating speed of the indoor fan is correspondingly adjusted according to different conditions, the influence of fresh air on the indoor environment temperature can be timely and effectively reduced, and the indoor fan is accurately controlled.
In an embodiment of the present invention, the adjusting the rotation speed of the outdoor fan according to the difference and the indoor set temperature specifically includes: when the difference value is smaller than a second temperature threshold value and the outdoor environment temperature is larger than the set temperature of the indoor unit, the rotating speed of the outdoor fan is adjusted to be 0; and when the difference is greater than or equal to the second temperature threshold, or the difference is less than the second temperature threshold and the outdoor environment temperature is less than or equal to the set temperature of the indoor unit, adjusting the rotating speed of the outdoor fan according to the difference.
The effect that this embodiment can reach is: the rotating speed of the outdoor fan is adjusted according to the difference value and the set temperature of the indoor unit, the rotating speed of the outdoor fan is correspondingly adjusted according to different conditions, the influence of fresh air on the indoor environment temperature can be timely and effectively reduced, and the outdoor fan is accurately controlled.
In an embodiment of the present invention, adjusting the frequency of the compressor according to the difference, the outdoor unit discharge temperature, and the indoor unit set temperature includes: when the difference value is smaller than a third temperature threshold value and the outdoor environment temperature is larger than the set temperature of the indoor unit, adjusting the frequency of the compressor to be 0; when the difference is greater than or equal to the third temperature threshold and less than the fourth temperature threshold, or the difference is less than the third temperature threshold and the outdoor environment temperature is less than or equal to the set temperature of the indoor unit, adjusting the frequency of the compressor according to the difference; and when the difference value is greater than or equal to the fourth temperature threshold value, adjusting the frequency of the compressor according to the difference value and the exhaust temperature of the outdoor unit, and if the exhaust temperature of the outdoor unit is greater than the first preset temperature, maintaining the frequency of the compressor unchanged.
The effect that this embodiment can reach is: the compressor frequency is adjusted according to the difference, the outdoor unit exhaust temperature and the indoor unit set temperature, the compressor frequency is correspondingly adjusted according to different conditions, the influence of fresh air on the indoor environment temperature can be timely and effectively reduced, and the compressor frequency is accurately controlled.
In an embodiment of the present invention, adjusting the opening of the electronic expansion valve according to the difference, the temperature of the coil of the heat exchanger of the indoor unit, and the temperature of the exhaust gas of the outdoor unit specifically includes: when the difference value is smaller than a fifth temperature threshold value, adjusting the opening of the electronic expansion valve according to the difference value and the outdoor unit exhaust temperature, and if the outdoor unit exhaust temperature is larger than a second preset temperature, maintaining the opening of the electronic expansion valve before adjustment; when the difference value is greater than or equal to the fifth temperature threshold value and less than the sixth temperature threshold value, adjusting the opening of the electronic expansion valve according to the difference value; and when the difference value is greater than or equal to the sixth temperature threshold value, adjusting the opening of the electronic expansion valve according to the difference value and the temperature of the coil pipe of the heat exchanger of the indoor unit.
The effect that this embodiment can reach is: the electronic expansion valve opening is adjusted according to the difference value, the temperature of the coil pipe of the heat exchanger of the indoor unit and the exhaust temperature of the outdoor unit, the electronic expansion valve opening is correspondingly adjusted according to different conditions, the influence of fresh air on the indoor environment temperature can be timely and effectively reduced, and the electronic expansion valve opening is accurately controlled.
In one embodiment of the invention, the fresh air motor is kept running after the indoor fan rotating speed is adjusted to be 0.
The effect that this embodiment can reach is: after the indoor fan stops operating, the fresh air motor keeps operating, can give indoor continuous transport new trend, continue to bring slight warm meaning for the user. Because outdoor environment temperature is higher than indoor environment temperature, consequently when fresh air conditioner is in the mode of heating, and when the indoor set temperature is less than off-premises station set temperature, indoor fan can the bring to rest, and fresh air motor can keep the operation.
To achieve the second object of the present invention, an embodiment of the present invention provides a control device for a fresh air conditioner, wherein the control device includes: the temperature sensing module is used for acquiring the indoor environment temperature and the outdoor environment temperature under the condition that the fresh air conditioner is in a heating mode; the calculation module is used for calculating the difference value between the indoor environment temperature and the outdoor environment temperature; and the control module is used for adjusting the rotating speed of an indoor fan, the rotating speed of an outdoor fan, the frequency of a compressor, the opening of an electronic expansion valve and the indoor electromechanical auxiliary heating of the fresh air conditioner according to the difference value.
The control device of the fresh air conditioner according to the embodiment of the present invention implements the steps of the control method of the mobile air conditioner according to any embodiment of the present invention, and thus has all the beneficial effects of the control method of the fresh air conditioner according to any embodiment of the present invention, and no further description is given here.
To achieve the third object of the present invention, an embodiment of the present invention provides a fresh air conditioner, including: the control method comprises a processor, a memory and a program or an instruction which is stored on the memory and can be run on the processor, wherein the program or the instruction realizes the steps of the control method of the fresh air conditioner according to any embodiment of the invention when being executed by the processor.
The fresh air conditioner of the embodiment of the present invention implements the steps of the control method of the fresh air conditioner of any embodiment of the present invention, and thus has all the beneficial effects of the control method of the fresh air conditioner of any embodiment of the present invention, which are not described herein again.
To achieve the fourth object of the present invention, an embodiment of the present invention provides a readable storage medium, on which a program or instructions are stored, and the program or instructions, when executed by a processor, implement the steps of the control method of the fresh air conditioner according to any embodiment of the present invention.
The readable storage medium of the embodiment of the present invention implements the steps of the control method of the fresh air conditioner according to any embodiment of the present invention, so that all the beneficial effects of the control method of the fresh air conditioner according to any embodiment of the present invention are achieved, and are not described herein again.
Drawings
Fig. 1 is a flowchart illustrating steps of a method for controlling a fresh air conditioner according to some embodiments of the present invention;
fig. 2 is a second flowchart illustrating steps of a control method of a fresh air conditioner according to some embodiments of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
[ first embodiment ] A method for manufacturing a semiconductor device
Referring to fig. 1, the present embodiment provides a control method of a fresh air conditioner, where the control method includes:
s100: under the condition that the fresh air conditioner is in a heating mode, acquiring indoor environment temperature and outdoor environment temperature;
s200: calculating the difference between the indoor environment temperature and the outdoor environment temperature;
s300: and adjusting the rotating speed of an indoor fan, the rotating speed of an outdoor fan, the frequency of a compressor, the opening of an electronic expansion valve and the electric auxiliary heating of the indoor unit of the fresh air conditioner according to the difference value.
In this embodiment, a control method of a fresh air conditioner is provided. It should be noted that, in a general situation, when the fresh air conditioner heats, the outdoor environment temperature is lower than the indoor environment temperature, and at this time, the fresh air will suddenly reduce the room temperature after entering the room, and this embodiment provides a control method of the fresh air conditioner to solve this problem; meanwhile, the outdoor environment temperature is higher than the indoor environment temperature, and the condition is also included in the control method of the fresh air conditioner in the embodiment.
S100: and under the condition that the fresh air conditioner is in a heating mode, acquiring the indoor environment temperature and the outdoor environment temperature. Preferably, the indoor environment temperature sensing device is used for acquiring indoor environment temperature, the indoor environment temperature sensing device is installed at an air inlet of the indoor unit, and when indoor air flows into an air duct of the indoor unit, the indoor air flows through the indoor environment temperature sensing device, so that the actual temperature is detected; the outdoor environment temperature sensing device is used for acquiring outdoor environment temperature, the outdoor environment temperature sensing device is installed at an air inlet of the outdoor unit, and outdoor air can flow through the outdoor environment temperature sensing device when flowing into an outdoor unit air duct, so that the actual temperature is detected.
S200: the difference between the indoor ambient temperature and the outdoor ambient temperature is calculated. It should be noted that the outdoor environment temperature is the fresh air temperature, and the difference between the indoor environment temperature and the outdoor environment temperature is calculated, i.e., the difference between the indoor environment temperature and the fresh air temperature is calculated. In this embodiment, the difference is calculated by subtracting the outdoor ambient temperature from the indoor ambient temperature, and when the indoor ambient temperature is lower than the outdoor ambient temperature, the difference is a negative value; when the indoor ambient temperature is higher than the outdoor ambient temperature, the difference is a positive value.
S300: and adjusting the rotating speed of an indoor fan, the rotating speed of an outdoor fan, the frequency of a compressor, the opening of an electronic expansion valve and the electric auxiliary heating of the indoor unit of the fresh air conditioner according to the difference value. And adjusting according to the difference value between the indoor environment temperature and the outdoor environment temperature obtained in the last step, wherein the adjustment is not in sequence. Preferably, after the difference between the indoor ambient temperature and the outdoor ambient temperature is obtained through calculation, the indoor fan rotating speed, the outdoor fan rotating speed, the compressor frequency, the opening degree of the electronic expansion valve and the indoor electric auxiliary heating of the fresh air conditioner are adjusted at the same time.
It can understand ground, this embodiment is through calculating the difference of indoor ambient temperature and outdoor ambient temperature, adjusts fresh air conditioner's indoor fan rotational speed, outdoor fan rotational speed, compressor frequency, electron expansion valve opening and indoor electromechanical auxiliary heating simultaneously according to the difference, can carry out quick response to the fresh air temperature of difference. For example, under the condition of a large difference value, namely when the indoor environment temperature is higher than the outdoor environment temperature, the heating effect of the fresh air conditioner is greatly improved by simultaneously adjusting the indoor fan rotating speed, the outdoor fan rotating speed, the compressor frequency, the opening degree of the electronic expansion valve and the indoor electromechanical auxiliary heat of the fresh air conditioner; under the condition of small difference, namely when the indoor environment temperature is lower than the outdoor environment temperature, the heating effect of the fresh air conditioner is improved to a small extent by simultaneously adjusting the indoor fan rotating speed, the outdoor fan rotating speed, the compressor frequency, the opening degree of the electronic expansion valve and the indoor electromechanical auxiliary heat of the fresh air conditioner; under the condition that the difference value is a negative value, namely the indoor environment temperature is lower than the outdoor environment temperature, the fresh air temperature is higher at the moment, the temperature is higher than the environment temperature of a user, and the heating capacity is reduced by adjusting the indoor fan rotating speed, the outdoor fan rotating speed, the compressor frequency, the opening degree of the electronic expansion valve and the indoor electromechanical auxiliary heat of the fresh air conditioner at the moment, so that the overhigh power consumption of the air conditioner is avoided. In the moment that the new trend is introduced, the comfort and the operational reliability that the new trend air conditioner used can be improved to this embodiment, have improved user's use satisfaction.
[ second embodiment ]
Referring to fig. 2, in a specific embodiment, adjusting the indoor fan speed, the outdoor fan speed, the compressor frequency, the electronic expansion valve opening degree, and the indoor electromechanical auxiliary heat of the fresh air conditioner according to the difference includes:
s310: acquiring the temperature of a coil pipe of a heat exchanger of an indoor unit, the exhaust temperature of the outdoor unit and the set temperature of the indoor unit;
s320: adjusting the rotating speed of the indoor fan according to the difference and the set temperature of the indoor unit;
s330: adjusting the rotating speed of the outdoor fan according to the difference and the set temperature of the indoor unit;
s340: adjusting the frequency of the compressor according to the difference, the exhaust temperature of the outdoor unit and the set temperature of the indoor unit;
s350: and adjusting the opening of the electronic expansion valve according to the difference, the temperature of the coil of the heat exchanger of the indoor unit and the exhaust temperature of the outdoor unit.
In this embodiment, the coil temperature of the heat exchanger of the indoor unit, the exhaust temperature of the outdoor unit, and the set temperature of the indoor unit need to be obtained. The temperature of the coil of the indoor unit heat exchanger is acquired through an indoor unit heat exchanger coil temperature sensing device which is arranged on a U pipe with the highest temperature of the indoor heat exchanger so as to detect the highest heat exchange temperature in the heating mode; the outdoor unit exhaust temperature is obtained through an outdoor unit exhaust temperature sensing device, and the outdoor unit exhaust temperature sensing device is installed on an air conditioner exhaust pipe and is as close to a compressor exhaust port as possible to detect the most real exhaust temperature; the set temperature of the indoor unit is the temperature set by a user, and under the condition that the air conditioner is started, the indoor environment temperature approaches the set temperature of the indoor unit until the indoor environment temperature is the same as the set temperature.
It should be noted that, the control method of this embodiment is premised on that, when the fresh air conditioner is in the heating mode, in a general case, the indoor environment temperature is higher than the outdoor environment temperature, but it is not excluded that, in a special case, the indoor environment temperature is lower than the outdoor environment temperature, in this case, it is necessary to further determine whether the set temperature of the indoor unit is higher than the outdoor environment temperature, and if the set temperature of the indoor unit is higher than the outdoor environment temperature, the fresh air conditioner will continue to heat; if the set temperature of the indoor unit is lower than the outdoor environment temperature, the fresh air conditioner stops heating.
The temperature sensing device of the coil pipe of the indoor unit heat exchanger is arranged on the U pipe with the highest temperature of the indoor heat exchanger, so that the highest heat exchange temperature in a heating mode can be detected, and the situation that the reliability of the operation of an air conditioner is influenced due to overhigh temperature of the indoor heat exchanger is prevented; the outdoor unit exhaust temperature sensing device is arranged on the exhaust pipe of the air conditioner and is close to the exhaust port of the compressor as far as possible, so that the truest exhaust temperature can be detected, the running state of the air conditioner can be adjusted through the measured temperature, the exhaust temperature is not too high, and the running reliability of the air conditioner is improved. After the temperature of the coil pipe of the heat exchanger of the indoor unit, the exhaust temperature of the outdoor unit and the set temperature of the indoor unit are obtained, the rotating speed of an indoor fan, the rotating speed of an outdoor fan, the frequency of a compressor and the opening degree of an electronic expansion valve of the fresh air conditioner are adjusted according to the difference value and the three temperatures, corresponding parts of the fresh air conditioner can be efficiently adjusted according to different conditions, the influence of introduced fresh air on the indoor environment temperature is reduced, and the comfort level of a user using the fresh air conditioner is further improved.
[ third embodiment ]
In a specific embodiment, the adjusting the rotation speed of the indoor fan according to the difference and the indoor set temperature specifically includes:
s321: when the difference value is smaller than a first temperature threshold value and the outdoor environment temperature is larger than the set temperature of the indoor unit, adjusting the rotating speed of the indoor fan to be 0;
s322: and when the difference is greater than or equal to the first temperature threshold, or the difference is less than the first temperature threshold and the outdoor environment temperature is less than or equal to the set temperature of the indoor unit, adjusting the rotating speed of the indoor fan according to the difference.
In this embodiment, the first temperature threshold is a negative value, and when the difference between the indoor ambient temperature and the outdoor ambient temperature is smaller than the first temperature threshold, it indicates that the indoor ambient temperature is lower than the outdoor ambient temperature, and if the outdoor ambient temperature is higher than the set temperature of the indoor unit, it indicates that the introduction of the fresh air will raise the indoor ambient temperature, and at this time, the operation of the indoor fan should be stopped.
It should be noted that the first temperature threshold is a negative value, and the absolute value thereof is small. Preferably, the first temperature threshold is-1 degree. When the difference between the indoor environment temperature and the outdoor environment temperature is smaller than the first temperature threshold, the outdoor environment temperature is higher than the indoor environment temperature, so that when the fresh air conditioner is in a heating mode and the set temperature of the indoor unit is lower than the outdoor environment temperature, the indoor fan stops running, namely, the rotating speed of the indoor fan is adjusted to be 0.
When the difference value between the indoor environment temperature and the outdoor environment temperature is greater than or equal to a first temperature threshold value, the indoor environment temperature is higher than the outdoor environment temperature; or the outdoor environment temperature is higher than the indoor environment temperature, but the difference value of subtracting the outdoor environment temperature from the indoor environment temperature is larger than or equal to the first temperature threshold value, and because the temperature sensing device has a certain error and the absolute value of the first temperature threshold value is smaller, the situation is still the same as the situation that the indoor environment temperature is higher than the outdoor environment temperature, namely the running of the indoor fan is not stopped, and the rotating speed of the indoor fan is adjusted according to the difference value. If the difference value is large, the indoor environment temperature is far higher than the outdoor environment temperature, the temperature of the introduced fresh air is lower than the indoor environment temperature, and the cold fresh air can cause large influence on the indoor environment temperature, so that the rotating speed of an indoor fan needs to be increased; if the difference value is smaller but larger than 0, the indoor environment temperature is slightly higher than the outdoor environment temperature, and the difference of the introduced fresh air temperature is not large compared with the indoor environment temperature, so that the indoor environment temperature is not greatly influenced, and the rotating speed of the indoor fan does not need to be adjusted to a higher level; if the difference is less than 0 but greater than or equal to the first temperature threshold, adjusting the rotating speed of the indoor fan to the mute windshield rotating speed, illustratively, the rotating speed of the mute windshield of the fan in the 1.5P air conditioner is 600r/min, and adjusting the rotating speed of the indoor fan to 600 r/min; and if the difference value is less than the first temperature threshold value and the outdoor environment temperature is less than or equal to the set temperature of the indoor unit, adjusting the rotating speed of the indoor fan to be 0.8 times of the rotating speed of the mute windshield.
According to the indoor fan control system, the rotating speed of the indoor fan is adjusted according to the difference value and the set temperature of the indoor unit, the rotating speed of the indoor fan is correspondingly adjusted according to different conditions, the influence of fresh air on the indoor environment temperature can be timely and effectively reduced, and the indoor fan is accurately controlled.
[ fourth example ] A
In a specific embodiment, the adjusting the rotation speed of the outdoor fan according to the difference and the indoor set temperature specifically comprises:
s331: when the difference value is smaller than a second temperature threshold value and the outdoor environment temperature is larger than the set temperature of the indoor unit, the rotating speed of the outdoor fan is adjusted to be 0;
s332: and when the difference is greater than or equal to the second temperature threshold, or the difference is less than the second temperature threshold and the outdoor environment temperature is less than or equal to the set temperature of the indoor unit, adjusting the rotating speed of the outdoor fan according to the difference.
In this embodiment, the second temperature threshold is a negative value, when the difference between the indoor ambient temperature and the outdoor ambient temperature is smaller than the second temperature threshold, it indicates that the indoor ambient temperature is lower than the outdoor ambient temperature, and if the outdoor ambient temperature is higher than the set temperature of the indoor unit, it indicates that the introduction of the fresh air will raise the indoor ambient temperature, and at this time, the operation of the outdoor fan should be stopped.
It should be noted that the second temperature threshold is a negative value, and its absolute value is small. Preferably, the second temperature threshold is-1 degree. When the difference value between the indoor environment temperature and the outdoor environment temperature is smaller than the second temperature threshold value, the outdoor environment temperature is higher than the indoor environment temperature, so that when the fresh air conditioner is in a heating mode and the set temperature of the indoor unit is lower than the outdoor environment temperature, the outdoor fan stops running, namely the rotating speed of the outdoor fan is adjusted to be 0.
When the difference value between the indoor environment temperature and the outdoor environment temperature is greater than or equal to a second temperature threshold value, the indoor environment temperature is higher than the outdoor environment temperature; or the outdoor environment temperature is higher than the indoor environment temperature, but the difference value of subtracting the outdoor environment temperature from the indoor environment temperature is larger than or equal to the second temperature threshold value, and because the temperature sensing device has a certain error and the absolute value of the second temperature threshold value is smaller, the situation is still the same as the situation that the indoor environment temperature is higher than the outdoor environment temperature, namely the running of the outdoor fan is not stopped, and the rotating speed of the outdoor fan is adjusted according to the difference value. If the difference value is large, the indoor environment temperature is far higher than the outdoor environment temperature, the temperature of the introduced fresh air is lower than the indoor environment temperature, and the cold fresh air can cause large influence on the indoor environment temperature, so that the rotating speed of an outdoor fan needs to be increased; if the difference value is smaller but larger than 0, the indoor environment temperature is slightly higher than the outdoor environment temperature, and the difference of the introduced fresh air temperature is not large compared with the indoor environment temperature, so that the indoor environment temperature is not greatly influenced, and the rotating speed of the outdoor fan does not need to be adjusted to a higher level; if the difference is less than 0 but greater than or equal to the second temperature threshold, adjusting the rotating speed of the outdoor fan to the rotating speed of the mute windshield, for example, the rotating speed of the mute windshield of the external fan of the 1.5P air conditioner is 600r/min, and adjusting the rotating speed of the outdoor fan to 600 r/min; and if the difference value is less than the second temperature threshold value and the outdoor environment temperature is less than or equal to the set temperature of the indoor unit, adjusting the rotating speed of the outdoor fan to be 0.8 times of the rotating speed of the mute windshield.
The outdoor fan rotating speed is adjusted according to the difference value and the set temperature of the indoor unit, the rotating speed of the outdoor fan is adjusted correspondingly according to different conditions, the influence of fresh air on the indoor environment temperature can be reduced timely and effectively, and the outdoor fan is controlled accurately.
[ fifth embodiment ]
In a specific embodiment, adjusting the frequency of the compressor according to the difference, the outdoor unit discharge temperature, and the indoor unit set temperature includes:
s341: when the difference value is smaller than a third temperature threshold value and the outdoor environment temperature is larger than the set temperature of the indoor unit, adjusting the frequency of the compressor to be 0;
s342: when the difference is greater than or equal to the third temperature threshold and less than the fourth temperature threshold, or the difference is less than the third temperature threshold and the outdoor environment temperature is less than or equal to the set temperature of the indoor unit, adjusting the frequency of the compressor according to the difference;
s343: and when the difference value is greater than or equal to the fourth temperature threshold value, adjusting the frequency of the compressor according to the difference value and the exhaust temperature of the outdoor unit, and if the exhaust temperature of the outdoor unit is greater than the first preset temperature, maintaining the frequency of the compressor unchanged.
In this embodiment, the third temperature threshold is a negative value, when the difference between the indoor ambient temperature and the outdoor ambient temperature is smaller than the third temperature threshold, it indicates that the indoor ambient temperature is lower than the outdoor ambient temperature, and if the outdoor ambient temperature is higher than the set temperature of the indoor unit, it indicates that the introduction of the fresh air will raise the indoor ambient temperature, and at this time, the operation of the compressor should be stopped.
It should be noted that the third temperature threshold is a negative value, and its absolute value is small; the fourth temperature threshold is a positive value. Preferably, the third temperature threshold is-1 degree, the fourth temperature threshold is 3 degrees, and the first preset temperature is 115 degrees. When the difference between the indoor environment temperature and the outdoor environment temperature is smaller than the third temperature threshold, the outdoor environment temperature is higher than the indoor environment temperature, so that when the fresh air conditioner is in the heating mode and the set temperature of the indoor unit is lower than the outdoor environment temperature, the compressor stops running, namely the frequency of the compressor is adjusted to be 0.
When the difference between the indoor environment temperature and the outdoor environment temperature is greater than or equal to the third temperature threshold and less than the fourth temperature threshold, the indoor environment temperature is higher than the outdoor environment temperature, or the outdoor environment temperature is higher than the indoor environment temperature, but the difference between the indoor environment temperature and the outdoor environment temperature is greater than or equal to the third temperature threshold. If the difference value is larger, the indoor environment temperature is far higher than the outdoor environment temperature, the temperature of the introduced fresh air is lower than the indoor environment temperature, and the cold fresh air can cause larger influence on the indoor environment temperature, so that the frequency of a room compressor needs to be improved; if the difference value is smaller but larger than 0, the indoor environment temperature is slightly higher than the outdoor environment temperature, and the difference of the introduced fresh air temperature is not large compared with the indoor environment temperature, so that the indoor environment temperature is not greatly influenced, and the frequency of the compressor does not need to be adjusted to a higher level; if the difference is less than 0 but greater than or equal to the third temperature threshold, adjusting the frequency of the compressor to be 0.7 times of the current frequency; and if the difference value is less than the second temperature threshold value and the outdoor environment temperature is less than or equal to the set temperature of the indoor unit, adjusting the rotating speed of the outdoor fan to be 0.6 times of the rotating speed of the mute windshield.
And when the difference value between the indoor environment temperature and the outdoor environment temperature is greater than or equal to the fourth temperature threshold value, the indoor environment temperature is higher than the outdoor environment temperature, and the difference value is larger. And adjusting the frequency of the compressor according to the difference value, improving the flow rate of a system refrigerant, improving the heating capacity, and maintaining the current frequency to prevent the compressor from being burnt out due to overheating if the exhaust temperature of the outdoor unit is higher than a first preset temperature after the frequency is improved. Illustratively, when the difference is greater than or equal to 3 degrees and less than 4 degrees, if the current operating frequency of the compressor of the 1.5P air conditioner is 100Hz, the frequency of the compressor is increased to 1.1 times the current frequency, i.e., to 110 Hz. If the outdoor unit discharge temperature is higher than 115 degrees after the frequency is increased, the current frequency is maintained, i.e. the compressor frequency is kept at 110 Hz.
The compressor frequency is adjusted according to the difference value, the exhaust temperature of the outdoor unit and the set temperature of the indoor unit, the compressor frequency is correspondingly adjusted according to different conditions, the influence of fresh air on the indoor environment temperature can be timely and effectively reduced, and the compressor frequency is accurately controlled.
[ sixth embodiment ]
In a specific embodiment, adjusting the opening of the electronic expansion valve according to the difference, the temperature of the coil of the heat exchanger of the indoor unit, and the temperature of the exhaust gas of the outdoor unit specifically includes:
s351: when the difference value is smaller than a fifth temperature threshold value, adjusting the opening of the electronic expansion valve according to the difference value and the outdoor unit exhaust temperature, and if the outdoor unit exhaust temperature is larger than a second preset temperature, maintaining the opening of the electronic expansion valve before adjustment;
s352: when the difference value is greater than or equal to the fifth temperature threshold value and less than the sixth temperature threshold value, adjusting the opening of the electronic expansion valve according to the difference value;
s353: and when the difference value is greater than or equal to the sixth temperature threshold value, adjusting the opening of the electronic expansion valve according to the difference value and the temperature of the coil pipe of the heat exchanger of the indoor unit.
Preferably, the fifth temperature threshold is 2 degrees, the sixth temperature threshold is 3 degrees, and the second preset temperature is 115 degrees.
In this embodiment, when the difference between the indoor ambient temperature and the outdoor ambient temperature is smaller than the fifth temperature threshold, the opening of the electronic expansion valve is adjusted according to the difference and the outdoor unit discharge temperature, and if the outdoor unit discharge temperature is greater than the second preset temperature, the opening of the electronic expansion valve is maintained before adjustment. Illustratively, when the difference is less than-1 degree, the opening degree of the electronic expansion valve is decreased to 0.6 times the current opening degree. When the outdoor unit discharge temperature is higher than 115 degrees after the opening degree of the electronic expansion valve is reduced, the opening degree of the electronic expansion valve is kept unchanged before adjustment.
And when the difference value is greater than or equal to the fifth temperature threshold value and less than the sixth temperature threshold value, adjusting the opening of the electronic expansion valve according to the difference value. Illustratively, when the difference is greater than or equal to 2 degrees and less than 3 degrees, the opening of the electronic expansion valve is kept unchanged.
And when the difference value is greater than or equal to the sixth temperature threshold value, adjusting the opening of the electronic expansion valve according to the difference value and the temperature of the coil pipe of the heat exchanger of the indoor unit. Illustratively, when the difference is greater than or equal to 5 degrees, the opening of the electronic expansion valve is increased, the flow rate of a system refrigerant is increased, and the heating capacity is increased, for example, if the current opening of the electronic expansion valve of the 1.5P air conditioner is 200 degrees, and the temperature of the coil of the heat exchanger of the indoor unit is 60 degrees, the opening of the electronic expansion valve is increased at a speed of 20 degrees per second until the temperature of the coil of the heat exchanger of the indoor unit is increased to 65 degrees.
According to the difference value, the temperature of the coil pipe of the heat exchanger of the indoor unit and the exhaust temperature of the outdoor unit, the opening of the electronic expansion valve is adjusted correspondingly according to different conditions, the influence of fresh air on the indoor environment temperature can be timely and effectively reduced, and the opening of the electronic expansion valve is accurately controlled.
[ seventh example ]
In one particular embodiment, the fresh air motor remains operational after the indoor fan speed is adjusted to 0.
In this embodiment, first temperature threshold value is the negative value, and when the difference of indoor ambient temperature and outdoor ambient temperature was less than first temperature threshold value, it is less than outdoor ambient temperature to explain indoor ambient temperature, if outdoor ambient temperature was greater than indoor set temperature, explains that the introduction of new trend can rise indoor ambient temperature, should stop the operation of indoor fan this moment, and the new trend is clicked and is kept the operation, gives indoor continuous transport new trend.
Understandably, after the indoor fan stops running, the fresh air motor keeps running, can continuously convey fresh air indoors, and continue to bring slight warmth for users. Because outdoor environment temperature is higher than indoor environment temperature, consequently when fresh air conditioner is in the mode of heating, and when the indoor set temperature is less than off-premises station set temperature, indoor fan can the bring to rest, and fresh air motor can keep the operation.
[ eighth embodiment ]
The following table 1 is an example to explain the embodiments of the present invention.
It should be noted that, the set temperature of the indoor unit is denoted as Tset, the outdoor environment temperature is denoted as Tfresh air, the outdoor unit exhaust temperature is denoted as Texhaust, the coil temperature of the indoor unit heat exchanger is denoted as Tinner coil,
TABLE 1
Figure BDA0003509188680000141
Figure BDA0003509188680000151
Figure BDA0003509188680000161
Figure BDA0003509188680000171
Figure BDA0003509188680000181
[ ninth example ] A
This embodiment provides a controlling means of new trend air conditioner, its characterized in that, controlling means includes: the temperature sensing module is used for acquiring the indoor environment temperature and the outdoor environment temperature under the condition that the fresh air conditioner is in a heating mode; the calculation module is used for calculating the difference value between the indoor environment temperature and the outdoor environment temperature; and the control module is used for adjusting the rotating speed of an indoor fan, the rotating speed of an outdoor fan, the frequency of a compressor, the opening of an electronic expansion valve and the indoor electromechanical auxiliary heating of the fresh air conditioner according to the difference value.
It should be noted that the control module specifically includes: acquiring the temperature of a coil pipe of a heat exchanger of an indoor unit, the exhaust temperature of the outdoor unit and the set temperature of the indoor unit; adjusting the rotating speed of the indoor fan according to the difference and the set temperature of the indoor unit; adjusting the rotating speed of the outdoor fan according to the difference and the set temperature of the indoor unit; adjusting the frequency of the compressor according to the difference, the exhaust temperature of the outdoor unit and the set temperature of the indoor unit; and adjusting the opening of the electronic expansion valve according to the difference, the temperature of the coil of the heat exchanger of the indoor unit and the exhaust temperature of the outdoor unit.
[ tenth embodiment ]
This embodiment provides a new trend air conditioner, it includes: the control method comprises a processor, a memory and a program or an instruction which is stored on the memory and can be run on the processor, wherein the program or the instruction realizes the steps of the control method of the fresh air conditioner according to any embodiment of the invention when being executed by the processor.
[ eleventh embodiment ]
The embodiment provides a readable storage medium, on which a program or instructions are stored, and when the program or instructions are executed by a processor, the steps of the control method of the fresh air conditioner according to any embodiment of the invention are implemented.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (10)

1. A control method of a fresh air conditioner is characterized by comprising the following steps:
under the condition that the fresh air conditioner is in a heating mode, acquiring indoor environment temperature and outdoor environment temperature;
calculating a difference between the indoor ambient temperature and the outdoor ambient temperature;
and adjusting the rotating speed of an indoor fan, the rotating speed of an outdoor fan, the frequency of a compressor, the opening of an electronic expansion valve and the indoor electromechanical auxiliary heating of the fresh air conditioner according to the difference value.
2. The control method according to claim 1, wherein the adjusting of the indoor fan speed, the outdoor fan speed, the compressor frequency, the electronic expansion valve opening degree and the indoor electromechanical auxiliary heating of the fresh air conditioner according to the difference value specifically comprises:
acquiring the temperature of a coil pipe of a heat exchanger of an indoor unit, the exhaust temperature of the outdoor unit and the set temperature of the indoor unit;
adjusting the rotating speed of the indoor fan according to the difference and the set temperature of the indoor unit;
adjusting the rotating speed of the outdoor fan according to the difference and the set temperature of the indoor unit;
adjusting the frequency of the compressor according to the difference, the exhaust temperature of the outdoor unit and the set temperature of the indoor unit;
and adjusting the opening of the electronic expansion valve according to the difference, the temperature of the coil pipe of the heat exchanger of the indoor unit and the exhaust temperature of the outdoor unit.
3. The control method according to claim 2, wherein the adjusting the indoor fan rotation speed according to the difference and the indoor unit set temperature specifically comprises:
when the difference value is smaller than a first temperature threshold value and the outdoor environment temperature is larger than the set temperature of the indoor unit, adjusting the rotating speed of the indoor fan to be 0;
and when the difference is greater than or equal to the first temperature threshold, or the difference is smaller than the first temperature threshold and the outdoor environment temperature is smaller than or equal to the set temperature of the indoor unit, adjusting the rotating speed of the indoor fan according to the difference.
4. The control method according to claim 2, wherein the adjusting the rotation speed of the outdoor fan according to the difference and the indoor unit set temperature specifically comprises:
when the difference value is smaller than a second temperature threshold value and the outdoor environment temperature is larger than the set temperature of the indoor unit, adjusting the rotating speed of the outdoor fan to be 0;
and when the difference is greater than or equal to the second temperature threshold, or the difference is less than the second temperature threshold and the outdoor environment temperature is less than or equal to the set temperature of the indoor unit, adjusting the rotating speed of the outdoor fan according to the difference.
5. The method of claim 2, wherein the adjusting the compressor frequency based on the difference, the outdoor unit discharge temperature, and the indoor unit set temperature comprises:
when the difference value is smaller than a third temperature threshold value and the outdoor environment temperature is larger than the set temperature of the indoor unit, adjusting the frequency of the compressor to be 0;
when the difference is greater than or equal to the third temperature threshold value and less than a fourth temperature threshold value, or the difference is less than the third temperature threshold value and the outdoor environment temperature is less than or equal to the set temperature of the indoor unit, adjusting the frequency of the compressor according to the difference;
when the difference value is larger than or equal to the fourth temperature threshold value, the frequency of the compressor is adjusted according to the difference value and the outdoor unit exhaust temperature, and if the outdoor unit exhaust temperature is larger than a first preset temperature, the frequency of the compressor is kept unchanged.
6. The method according to claim 2, wherein the adjusting the opening of the electronic expansion valve according to the difference, the temperature of the coil of the indoor heat exchanger, and the temperature of the outdoor discharge air comprises:
when the difference value is smaller than a fifth temperature threshold value, adjusting the opening of the electronic expansion valve according to the difference value and the outdoor unit exhaust temperature, and if the outdoor unit exhaust temperature is larger than a second preset temperature, maintaining the opening of the electronic expansion valve before adjustment;
when the difference value is greater than or equal to a fifth temperature threshold value and less than a sixth temperature threshold value, adjusting the opening of the electronic expansion valve according to the difference value;
and when the difference value is larger than or equal to the sixth temperature threshold value, adjusting the opening of the electronic expansion valve according to the difference value and the temperature of the coil pipe of the heat exchanger of the indoor unit.
7. The control method of claim 3, wherein a fresh air motor remains running after said adjusting said indoor fan speed to 0.
8. The utility model provides a controlling means of new trend air conditioner which characterized in that, controlling means includes:
the temperature sensing module is used for acquiring the indoor environment temperature and the outdoor environment temperature under the condition that the fresh air conditioner is in a heating mode;
a calculation module for calculating a difference between the indoor ambient temperature and the outdoor ambient temperature;
and the control module is used for adjusting the indoor fan rotating speed, the outdoor fan rotating speed, the compressor frequency, the opening degree of the electronic expansion valve and the indoor electromechanical auxiliary heating of the fresh air conditioner according to the difference value.
9. The utility model provides a fresh air conditioner which characterized in that, fresh air conditioner includes: a processor, a memory and a program or instructions stored on the memory and executable on the processor, which when executed by the processor implement the steps of the control method of any one of claims 1 to 7.
10. A readable storage medium, characterized in that it stores thereon a program or instructions which, when executed by a processor, implement the steps of the control method according to any one of claims 1 to 7.
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