CN115247869B - Air conditioner control method and device, air conditioner and storage medium - Google Patents

Air conditioner control method and device, air conditioner and storage medium Download PDF

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Publication number
CN115247869B
CN115247869B CN202110470686.0A CN202110470686A CN115247869B CN 115247869 B CN115247869 B CN 115247869B CN 202110470686 A CN202110470686 A CN 202110470686A CN 115247869 B CN115247869 B CN 115247869B
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China
Prior art keywords
air conditioner
temperature
heat exchanger
indoor heat
external fan
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CN202110470686.0A
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CN115247869A (en
Inventor
邹大枢
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GD Midea Air Conditioning Equipment Co Ltd
Wuhu Meizhi Air Conditioning Equipment Co Ltd
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GD Midea Air Conditioning Equipment Co Ltd
Wuhu Meizhi Air Conditioning Equipment Co Ltd
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Application filed by GD Midea Air Conditioning Equipment Co Ltd, Wuhu Meizhi Air Conditioning Equipment Co Ltd filed Critical GD Midea Air Conditioning Equipment Co Ltd
Priority to CN202110470686.0A priority Critical patent/CN115247869B/en
Priority to PCT/CN2021/096877 priority patent/WO2022227186A1/en
Publication of CN115247869A publication Critical patent/CN115247869A/en
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Publication of CN115247869B publication Critical patent/CN115247869B/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
    • 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
    • F24F11/50—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
    • F24F11/70—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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/86—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
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F24F2110/12—Temperature of the outside air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/20—Heat-exchange fluid temperature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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

Abstract

The invention relates to the technical field of air conditioners, and discloses a control method and device of an air conditioner, the air conditioner and a storage medium, wherein the method comprises the following steps: when the air conditioner enters a heating mode, the current outdoor temperature of the outdoor environment where the air conditioner is located is firstly obtained, the starting operation of the compressor is controlled when the current outdoor temperature is larger than the preset outdoor temperature, the first indoor heat exchanger temperature after the compressor operates for a first preset time is obtained, and then the operation state of the external fan of the air conditioner is adjusted according to the first indoor heat exchanger temperature.

Description

Air conditioner control method and device, air conditioner and storage medium
Technical Field
The present invention relates to the field of air conditioners, and in particular, to a control method and apparatus for an air conditioner, and a storage medium.
Background
The existing air conditioner manufacturer optimizes the system through technology upgrading, performs environment-friendly refrigerant switching, and realizes technology cost reduction so as to improve the cost performance and competitiveness of an air conditioning system. By means of refrigerant switching, R32 refrigerant is used for replacing the refrigerant of R22 or R410a, so that the configuration of an internal machine and an external machine is reduced, and the technical cost is reduced.
Because the configuration is reduced, the outer fan and the compressor of the fixed-frequency air conditioner are started simultaneously, the inner fan is in a cold air prevention stage, particularly under the condition of relatively high outdoor temperature, the outer fan and the compressor are started simultaneously, the inner heating demand is small at the moment, the compressor of the fixed-frequency air conditioner cannot reduce the output of heat through self unloading, the running pressure of the air conditioner is too high, and further the protection shutdown is caused.
Disclosure of Invention
The invention provides a control method and device of an air conditioner, the air conditioner and a storage medium, and aims to solve the technical problem that a conventional fixed-frequency air conditioner is easy to start and stop frequently in a hot start stage of a compressor.
In order to achieve the above object, the present invention provides a control method of an air conditioner, the method comprising:
When the air conditioner is detected to enter a heating mode, acquiring the current outdoor temperature of the outdoor environment where the air conditioner is positioned;
when the current outdoor temperature is higher than the preset outdoor temperature, controlling the starting operation of the compressor, and acquiring the temperature of the first indoor heat exchanger after the compressor operates for a first preset time;
and adjusting the running state of the external fan of the air conditioner according to the temperature of the first indoor heat exchanger.
Optionally, judging whether the temperature of the first indoor heat exchanger is less than or equal to a first preset temperature;
and if the temperature of the first indoor heat exchanger is less than or equal to a first preset temperature, controlling a first external fan and a second external fan of the air conditioner to start to operate, wherein the first external fan and the second external fan are fans arranged at the outdoor heat exchanger of the air conditioner.
Optionally, if the temperature of the first indoor heat exchanger is greater than a first preset temperature and the temperature of the first indoor heat exchanger is less than a second preset temperature, the first external fan of the air conditioner or the second external fan of the air conditioner is controlled to start to operate.
Optionally, acquiring a second indoor heat exchanger temperature of the air conditioner after running for a second preset time in an adjusted running state of the external fan, and taking the second indoor heat exchanger temperature as the first indoor heat exchanger temperature;
And continuously executing the step of adjusting the running state of the external fan of the air conditioner according to the temperature of the first indoor heat exchanger.
Optionally, if the temperature of the first indoor heat exchanger is less than or equal to a first preset temperature, increasing the rotation speed of a first external fan and the rotation speed of a second external fan of the air conditioner;
and if the temperature of the first indoor heat exchanger is greater than or equal to the second preset temperature, controlling the first external fan and the second external fan of the air conditioner to stop running.
Optionally, if the temperature of the first indoor heat exchanger is less than or equal to a first preset temperature, judging whether the rotation speed of the external fan of the air conditioner reaches a preset limiting rotation speed;
and if the rotating speed of the outer fan of the air conditioner reaches the preset limiting rotating speed, reducing the rotating speed of the inner fan of the air conditioner.
Optionally, if the temperature of the first indoor heat exchanger is greater than or equal to a second preset temperature, the rotation speed of the inner fan of the air conditioner is increased.
Optionally, when the current outdoor temperature is less than or equal to a preset outdoor temperature, controlling the starting operation of the compressor, and controlling the starting operation of the first external fan and the second external fan of the air conditioner.
In addition, in order to achieve the above object, the present invention also provides a control device of an air conditioner, the control device of the air conditioner comprising:
the acquisition module is used for acquiring the current outdoor temperature of the outdoor environment where the air conditioner is positioned when the air conditioner is detected to enter a heating mode;
the control module is used for controlling the starting operation of the compressor when the current outdoor temperature is greater than the preset outdoor temperature, and acquiring the temperature of the first indoor heat exchanger after the compressor operates for a first preset time;
And the adjusting module is used for adjusting the running state of the external fan of the air conditioner according to the temperature of the first indoor heat exchanger.
In addition, in order to achieve the above object, the present invention also provides an air conditioner including a processor, a memory, and a control program of the air conditioner stored in the memory, which when executed by the processor, implements the steps of the control method of the air conditioner as described above.
In addition, in order to achieve the above object, the present invention also provides a computer storage medium having stored thereon a control program of an air conditioner, which when executed by a processor, implements the steps of the control method of an air conditioner as described above.
Compared with the prior art, the invention provides a control method of an air conditioner, which controls a fixed-frequency compressor to start to operate when detecting that the air conditioner enters a heating mode, and obtains the outdoor temperature of the outdoor environment where the current air conditioner is positioned; when the outdoor temperature is higher than the preset outdoor temperature, acquiring the temperature of a first indoor heat exchanger after the compressor runs for a first preset time; according to the temperature of the first indoor heat exchanger, the state of the external fan of the air conditioner is adjusted, so that the compressor of the air conditioner and the external fan of the air conditioner are controlled to start at the same time under the condition that the outdoor temperature is relatively high, and the operation state of the external fan is regulated and controlled according to the temperature of the indoor heat exchanger of the air conditioner, so that the compressor of the air conditioner reduces the output of heat through the operation state of the external fan, the operation pressure of the air conditioner is reduced, and the frequent occurrence of protection shutdown of the air conditioner is avoided.
Drawings
Fig. 1 is a schematic hardware configuration of an air conditioner according to various embodiments of the present invention;
Fig. 2 is a schematic structural view of an air conditioner according to the control method of the air conditioner of the present invention;
FIG. 3 is a flowchart illustrating a control method of an air conditioner according to a first embodiment of the present invention;
FIG. 4 is a flowchart illustrating a control method of an air conditioner according to a second embodiment of the present invention;
Fig. 5 is a schematic diagram of functional modules of an embodiment of a control device of an air conditioner according to the present invention.
Description of the drawings:
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1, fig. 1 is a schematic hardware configuration of an air conditioner according to various embodiments of the present invention. In an embodiment of the present invention, the air conditioner may include a processor 1001 (e.g., a central processing unit Central Processing Unit, a CPU), a communication bus 1002, an input port 1003, an output port 1004, and a memory 1005. Wherein the communication bus 1002 is used to enable connected communications between these components; the input port 1003 is used for data input; the output port 1004 is used for data output, and the memory 1005 may be a high-speed RAM memory or a stable memory (non-volatile memory), such as a disk memory, and the memory 1005 may be an optional storage device independent of the processor 1001. Those skilled in the art will appreciate that the hardware configuration shown in fig. 1 is not limiting of the invention and may include more or fewer components than shown, or may combine certain components, or a different arrangement of components.
With continued reference to fig. 1, the memory 1005 of fig. 1, which is a readable storage medium, may include an operating system, a network communication module, an application program module, and a control program of an air conditioner. In the terminal shown in fig. 1, the network interface 1004 is mainly used for connecting to a background server and performing data communication with the background server; the user interface 1003 is mainly used for connecting a client (user side) and performing data communication with the client; and the processor 1001 may be used to call a control program of the air conditioner stored in the memory 1005.
In this embodiment, an air conditioner includes: the controller comprises a memory 1005, a processor 1001 and a control program of an air conditioner which is stored in the memory 1005 and can be operated on the processor 1001, wherein when the processor 1001 calls the control program of the air conditioner stored in the memory 1005, the following operations are executed:
When the air conditioner is detected to enter a heating mode, acquiring the current outdoor temperature of the outdoor environment where the air conditioner is positioned;
when the current outdoor temperature is higher than the preset outdoor temperature, controlling the starting operation of the compressor, and acquiring the temperature of the first indoor heat exchanger after the compressor operates for a first preset time;
and adjusting the running state of the external fan of the air conditioner according to the temperature of the first indoor heat exchanger.
Based on the hardware structure shown in fig. 1, a first embodiment of the present invention provides a control method of an air conditioner.
It should be noted that, in the air conditioner according to the present embodiment, the above-mentioned air conditioner refers to a fixed-frequency air conditioner, that is, the rotation speed of the compressor of the air conditioner is not variable, and is a fixed-frequency compressor, specifically, referring to fig. 2, fig. 2 is a structural diagram of the air conditioner according to the present invention, as shown in fig. 2, the air conditioner is divided into an outdoor side and an indoor side, wherein the indoor side includes an inner fan 1, an indoor heat exchanger 2, and a first pipeline temperature sensor 3 for detecting the temperature of the outdoor heat exchanger 2, wherein the inner fan 1 is used to drive indoor air to pass through the indoor heat exchanger, so that the indoor air exchanges heat with refrigerant in a coil of the indoor heat exchanger, and the indoor heat exchanger 2 is used as an evaporating end when refrigerating, the refrigerant is subjected to heat absorption, the refrigerant is heated to serve as a condensing end, the refrigerant is subjected to heat dissipation, and further, the outdoor side sequentially comprises a compressor 4 with invariable rotating speed, a gas-liquid separator 5, a four-way valve 6, an outdoor heat exchanger 7, a second pipeline temperature sensor 8 for detecting the temperature of the outdoor heat exchanger 7, a first external fan 9, a second external fan 10 and impurities in a refrigerant pipeline of the air conditioner, the impurities are prevented from entering a throttling part, the throttling effect is prevented from being deteriorated or the impurities in the refrigerant pipeline of the air conditioner are prevented from being blocked, the throttling valve 12 and the second filter 13 for filtering the impurities in the refrigerant pipeline of the air conditioner are prevented from entering the throttling part, and the throttling effect is prevented from being deteriorated or the impurities are prevented from being blocked.
In this embodiment, the throttle valve 12 is composed of a refrigeration throttle valve and a heating throttle valve, and it should be noted that the heating throttle valve plays a role in throttling and reducing pressure when the air conditioner heats, and does not play a role in throttling, i.e. one-way throttling and reverse non-throttling when the air conditioner cools, and the same refrigeration throttle valve plays a role in throttling and reducing pressure when the air conditioner cools, and does not play a role in throttling, i.e. one-way throttling and reverse non-throttling when the air conditioner heats.
In this embodiment, the first external fan 9 is a fan disposed at the outdoor heat exchanger 7 of the air conditioner, and the second external fan 10 is also a fan disposed at the outdoor heat exchanger 7 of the air conditioner, where the external fan is used to drive the outdoor air to pass through the outdoor heat exchanger 7, so that the outdoor air exchanges heat with the refrigerant in the pipe of the outdoor heat exchanger 7.
It should be further noted that, in this embodiment, the number of external fans at the outdoor heat exchanger 7 of the air conditioner is not limited, in other words, in this embodiment, other external fans may be installed in the vertical direction of the outdoor heat exchanger 7 of the air conditioner, which is not limited in this embodiment.
Further, in this embodiment, in order to flexibly control the heat dissipation capacity of the outdoor heat exchanger, the air outlet of the first outdoor fan 9 may be directed toward the upper portion of the outdoor heat exchanger 7, so that the outdoor air is driven to the upper region of the outdoor heat exchanger 7 by the first outdoor fan 9 to perform heat exchange, and meanwhile, the air outlet of the second outdoor fan 10 may be directed toward the lower portion of the outdoor heat exchanger 7, so that the purpose of flexibly controlling the heat dissipation capacity of the outdoor heat exchanger may be achieved based on the cooperative cooperation of the first outdoor fan 9 and the second outdoor fan 10.
It should be noted that, the external fan in this embodiment may be located on the same side of the outdoor heat exchanger 7, or may be located on a different side of the outdoor heat exchanger 7, which is not limited in this embodiment.
Based on the air conditioner shown in fig. 2, a control method of the air conditioner of the present invention is provided, and referring to fig. 3, fig. 3 is a flowchart of a first embodiment of the control method of the air conditioner of the present invention.
The embodiments of the present invention provide embodiments of a control method of an air conditioner, and it should be noted that although a logic sequence is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than that shown or described herein.
Specifically, the control method of the air conditioner of the embodiment includes:
Step S10: when the air conditioner is detected to enter a heating mode, acquiring the current outdoor temperature of the outdoor environment where the air conditioner is positioned;
It should be noted that, the execution body of the present embodiment is the air conditioner related to fig. 2, and the present embodiment is not described herein again.
It should be understood that the outdoor temperature may be obtained by a temperature sensor provided in advance on the outside of the air conditioner, wherein the installation position of the temperature sensor may be located at any position on the outside of the air conditioner, for example, inside or outside the casing on the outside of the air conditioner, which is not limited by the present embodiment.
Step S20: when the current outdoor temperature is higher than the preset outdoor temperature, controlling the starting operation of the compressor, and acquiring the temperature of the first indoor heat exchanger after the compressor operates for a first preset time;
Specifically, the preset outdoor temperature refers to a preset specific temperature value for distinguishing a heating state of the current air conditioner, wherein the heating state refers to high-temperature heating and non-high-temperature heating, that is, when the outdoor temperature is greater than the preset outdoor temperature, the air conditioner is in high-temperature heating, and when the outdoor temperature is less than or equal to the preset outdoor temperature, the air conditioner is in non-high-temperature heating.
It is noted that when the air conditioner enters the heating mode from the standby mode, the shutdown mode or the refrigeration mode, the high-temperature and high-pressure gas refrigerant discharged by the compressor flows through the four-way valve, enters the indoor heat exchanger side to dissipate heat, passes through the filter, and then passes through the heating throttle valve to throttle to form a low-temperature and low-pressure refrigerant, and then enters the outdoor heat exchanger at the outdoor side to absorb heat and evaporate, and then flows into the gas-liquid separator to perform gas-liquid separation, and then the gas refrigerant returns to the compressor to circulate, and the liquid refrigerant is stored in the gas-liquid separator.
Specifically, in practical application, if it is detected that the outdoor temperature of the air conditioner is greater than a preset specific temperature value, it indicates that the air conditioner is currently in high-temperature heating, so in this embodiment, in order to avoid an excessive operating pressure of the air conditioner, the compressor is first brought into an operating state, and the external fan of the air conditioner is controlled to be started after the compressor is started to operate for a first preset time.
Further, in order to improve the running stability of the air conditioner, in this embodiment, when the starting running time of the compressor reaches the first preset time, the temperature value of the indoor heat exchanger is obtained through the first pipeline temperature sensor, and then the regulation strategy of the external fan of the air conditioner is determined through the temperature value.
It should be understood that the first preset time may be a specific time value that is preset, for example, 10s, 15s, etc.
It should be understood that the first preset time may also be the time consumed for switching the flow direction of the refrigerant in the refrigerant pipeline of the air conditioner to the heating flow direction, and it should be noted that, in the warm start stage of the compressor, the four-way valve has a delayed start condition, which results in the fact that the four-way valve is in a cooling state in the initial stage of the heating mode, so that the temperature of the indoor heat exchanger is in a falling stage, when the four-way valve is switched to the heating state, the refrigerant at the four-way valve is in a back collision, and the temperature of the indoor heat exchanger is slowly raised, so that the pressure of the air conditioner is gradually increased, and further, the compressor is stopped, so that in the embodiment, after the compressor is operated for the first preset time, the temperature value of the indoor heat exchanger is obtained by the first pipeline temperature sensor, and thus the corresponding control strategy is executed according to the temperature value.
Step S30: and adjusting the running state of the external fan of the air conditioner according to the temperature of the first indoor heat exchanger.
Specifically, the external fan refers to a fan in an outdoor side area of the air conditioner, such as the first external fan shown in fig. 3, or the second external fan, and in this embodiment, the external fan may further include other external fans than those shown in fig. 3, which is not limited thereto, and the present embodiment is described with the external fan shown in fig. 3 as a representative.
In the step, the outdoor heat exchanger is positioned between the air outlet of the first outdoor fan and the air suction inlet of the second outdoor fan, so that the air quantity of the outdoor air flowing through the outdoor heat exchanger can be adjusted by adjusting the running state of the outdoor fan, the heat exchange quantity of the outdoor heat exchanger is adjusted, and the aim of adjusting the running pressure of the air conditioner is fulfilled.
Specifically, in practical application, because the temperature of the indoor heat exchanger is firstly in a falling stage and then in a slowly rising stage due to the delayed start condition of the four-way valve in the warm start stage of the compressor, in this embodiment, when the temperature of the first indoor heat exchanger (i.e., the temperature value obtained by the first pipeline temperature sensor) is adjusted, whether the temperature of the first indoor heat exchanger reaches the external fan start operation condition is judged first, for example, the first preset temperature is 48 ℃, when the temperature value of the temperature of the indoor heat exchanger is detected to be less than the first preset temperature of 48 ℃, the external fan start operation condition is judged, and when the temperature value of the temperature of the indoor heat exchanger is detected to be 48 ℃, namely, the temperature value of the temperature of the indoor heat exchanger is equal to the first preset temperature of 48 ℃, the external fan start operation condition is also judged, and when the temperature of the indoor heat exchanger reaches the external fan start operation condition, the two external fans of the air conditioner are controlled to start and operate simultaneously.
Specifically, the first preset temperature is used for measuring whether the heat exchange amount of the outdoor heat exchanger is low, when the temperature of the first indoor heat exchanger is detected to reach the starting operation condition of the external fan, the fact that the temperature of a coil pipe of the current indoor heat exchanger is low is indicated, and the air outlet temperature at the air outlet of the air conditioner is low, so that the outdoor heat exchanger needs to strengthen the heat absorption and transfer to the indoor heat exchanger, and the air outlet temperature at the air outlet of the air conditioner reaches the user requirement.
Therefore, in this embodiment, when the temperature of the first indoor heat exchanger reaches the condition of starting the operation of the external fan, the first external fan and the second external fan are simultaneously started to operate, so that a large amount of outdoor air is driven to flow through the outdoor heat exchanger by the external fan which is simultaneously operated, and the heat absorbed by the outdoor heat exchanger is further enhanced.
In an application scenario, in order to improve heat exchange efficiency, the air inlet of the second external fan is opposite to the air outlet of the first external fan, and the outdoor heat exchanger is located between the air outlet of the first external fan and the air inlet of the second external fan, so that a heat dissipation air channel is formed between the air inlet of the second external fan and the air outlet of the first external fan, and the outdoor heat exchanger is located on the heat dissipation air channel, therefore, under the action of the suction force of the second external fan, the air exhausted by the first external fan completely flows through the heat dissipation air channel, and the heat exchange efficiency of the outdoor heat exchanger can be greatly improved.
Further, in order to avoid that when the two external fans are started to operate simultaneously to strengthen the heat absorbed by the outdoor heat exchanger, the heat absorbed by the outdoor heat exchanger is too much, so that the air conditioner exchanges heat forcefully.
Further, in order to improve the regulation accuracy of the air conditioner, when the two external fans are started to operate simultaneously, the rotation speeds of the two external fans can be reduced along with the increase of the temperature of the first indoor heat exchanger, for example, the first external fan is used for illustration, after the temperature of the first indoor heat exchanger is detected to reach the external fan starting operation condition, the temperature difference between the temperature of the first indoor heat exchanger and the first preset temperature is calculated to be 5 ℃, the first external fan is controlled to start to operate at 40rpm/min, when the temperature difference is 10 ℃, the first external fan is controlled to start to operate at 80rpm/min, when the temperature difference is 15 ℃, the first external fan is controlled to start to operate at 120rpm/min, and the like.
In another application scenario, in executing the step S30, the method further includes: and if the temperature of the first indoor heat exchanger is greater than or equal to the second preset temperature, controlling an external fan of the air conditioner to stop running.
Specifically, the above second preset temperature is used for measuring whether the heat exchange amount of the outdoor heat exchanger is higher, and it is to be noted that when the heat exchange amount of the outdoor heat exchanger is higher, the heat exchange of the current air conditioner is strong, and the operation pressure of the air conditioner is high, so that in order to avoid the operation pressure of the air conditioner from continuously rising to cause the stop of the compressor, the operation of the outdoor fan of the air conditioner can be controlled to stop, so that the heat exchange amount of the outdoor heat exchanger is reduced, and the operation pressure of the air conditioner is reduced.
Further, in order to improve the heating effect of the air conditioner during the stable operation of the air conditioner, when the temperature of the first indoor heat exchanger is greater than a first preset temperature and the temperature of the first indoor heat exchanger is less than a second preset temperature, an external fan is started, namely, the first external fan of the air conditioner is started to operate, or the second external fan of the air conditioner is started, so that a small amount of outdoor air is driven to flow through the heat exchanger to perform partial heat exchange with the outdoor heat exchanger.
Further, in order to avoid that when one external fan is started to strengthen the heat absorbed by the outdoor heat exchanger, the heat absorbed by the outdoor heat exchanger is too much, so that the heat exchange of the air conditioner is strong, in this step, the external fan of the air conditioner can be controlled to start to operate at a stepped rotation speed first, wherein it should be noted that, in this embodiment, the step of starting the external fan to operate at the stepped rotation speed may be the same as the step of starting to operate at the stepped rotation speed in the first embodiment, and this embodiment will not be repeated here.
It should be understood that the foregoing is merely illustrative, and the technical solution of the present invention is not limited in any way, and those skilled in the art may perform the arrangement according to the needs in practical application, and are not listed here.
In this embodiment, under the condition that the outdoor temperature is relatively high, the compressor is controlled to start up and operate firstly, then the external fan is regulated and controlled according to the indoor heat exchanger temperature, so that the compressor and the external fan are controlled to start up non-simultaneously, the heat output is reduced through the regulation and control of the external fan, the operating pressure of the air conditioner is further reduced, and the frequent occurrence of protection shutdown of the air conditioner is avoided.
Further, a second embodiment of the control method of the air conditioner according to the present invention is provided based on the first embodiment of the control method of the air conditioner of the present invention.
Referring to fig. 4, fig. 4 is a schematic flow chart of a second embodiment of an electric control cooling method of an air conditioner according to the present invention;
the second embodiment of the electric control cooling method of the air conditioner is different from the first embodiment of the electric control cooling method of the air conditioner in that, after the step S30, the method further includes:
Step S40: acquiring a second indoor heat exchanger temperature of the air conditioner after running for a second preset time in an adjusted running state of the external fan, and taking the second indoor heat exchanger temperature as the first indoor heat exchanger temperature;
step S50: and continuously executing the step of adjusting the running state of the external fan of the air conditioner according to the temperature of the first indoor heat exchanger.
Specifically, the second preset time may be a specific preset time value, for example, 10s, 20s, etc., where the second preset time may be equal to the first preset time in the first embodiment or may be unequal to the first preset time in the first embodiment, which is not limited in this embodiment.
In this step, it should be understood that, in order to avoid frequent start-up and shut-down of the compressor during operation, the above-described steps are continuously performed after the indoor heat exchanger temperature is acquired, so that the operating pressure of the air conditioner is brought within the normal operating pressure range by performing the above-described steps.
In addition, it should be noted that the external fan is adjusted after the air conditioner enters the heating mode, so before the external fan is adjusted again, the external fan state of the air conditioner has at least three states: in this embodiment, when the step S50 is executed, the step is specifically described as dividing the above into three cases according to the temperature of the first indoor heat exchanger.
First case: and if the temperature of the first indoor heat exchanger is less than or equal to a first preset temperature.
In this step, if it is detected that both the external fans are currently in operation, for example, one external fan is started to operate at 40rpm/min and the other external fan is started to operate at 80rpm/min, the external fan started to operate at 40rpm/min may be increased to 80rpm/min, and the external fan started to operate at 80rpm/min may be increased to 120rpm/min.
It should be further noted that when the rotation speed of the external fan is increased, it needs to be judged whether the rotation speed of the external fan of the air conditioner reaches the preset limiting rotation speed, that is, whether the current rotation speed of the external fan can be increased continuously, and if the current rotation speed of the external fan cannot be increased continuously, the rotation speed of the internal fan of the air conditioner is reduced.
Specifically, the above-mentioned preset limiting rotation speed refers to the highest rotation speed of the outer fan, and it is easy to understand that when the rotation speed of the outer fan of the air conditioner cannot be increased continuously, the heat dissipation capacity of the indoor heat exchanger can be reduced by reducing the rotation speed of the inner fan in this embodiment, so as to improve the coil temperature of the indoor heat exchanger.
In addition, in some embodiments, if it is detected that the two external fans are not in the operation state at present, the two external fans are controlled to start to operate, and it should be noted that, in this embodiment, the step of controlling the two external fans to start to operate is the same as the step S30 in the first embodiment, and this embodiment is not repeated here.
Further, in some embodiments, if it is detected that one of the two external fans is currently in operation, for example, the first external fan is in operation, or the second external fan is in operation, then in this case, the external fan in the shutdown state may be started to operate, where the external fan is controlled to operate at a stepped rotation speed when the external fan is controlled to operate, and the rotation speed when the external fan is controlled to operate when the external fan is started may also be determined based on the operation rotation speed of the external fan in the current operation state.
For ease of understanding, this embodiment exemplifies the above-described step of controlling the start-up operation of another external fan.
For example, when the first preset temperature is 48 ℃, the second preset temperature is 54 ℃, and the first external fan of the current air conditioner is in a stop operation state, and the second external fan is running at a middle speed of 80rpm/min, if the temperature is detected to be between 48 ℃ and 54 ℃, the first external fan can be controlled to start to run at the lowest speed of 40rpm/min, or the first external fan can be controlled to run at the same speed of 80rpm/min as the second external fan, which is not limited in this embodiment.
Second case: and if the temperature of the first indoor heat exchanger is higher than a first preset temperature, and the temperature of the first indoor heat exchanger is lower than a second preset temperature.
In the step, when the first external fan is detected to be in a running state and the second external fan is detected to be in a stopping state, the rotating speed of the first external fan of the air conditioner is increased, or when the second external fan is detected to be in a running state and the first external fan is detected to be in a stopping state, the rotating speed of the second external fan is increased.
In addition, in another application scenario, if it is detected that the two external fans of the air conditioner are in the stopped state, one of the external fans may be driven to start to operate, for example, to drive the first external fan of the air conditioner to start to operate, and it should be noted that the step of the external fan start to operate in this embodiment is the same as the step S30 in the first embodiment, and this embodiment is not repeated here.
Third case: and if the temperature of the first indoor heat exchanger is greater than or equal to the second preset temperature.
In this step, when the temperature of the indoor heat exchanger belongs to the third condition, it indicates that the heat exchange amount of the current outdoor heat exchanger is higher, the current air conditioner exchanges heat forcefully, and the operating pressure of the air conditioner is high, so that in order to avoid the operation pressure of the air conditioner from continuously rising to cause the stop of the compressor, the two external fans of the air conditioner are controlled to stop operating, thereby reducing the heat exchange amount of the outdoor heat exchanger and further reducing the operation pressure of the air conditioner.
Further, in some embodiments, the external fan of the current air conditioner may be already in a stopped state, so in order to slow down the heat exchange amount of the external heat exchanger, the rotational speed of the internal fan of the air conditioner may be increased in this embodiment, so that the influence caused by the higher heat exchange amount of the external heat exchanger is slowed down by increasing the heat dissipation amount of the indoor heat exchanger.
In this embodiment, the above steps are performed again in a circulating manner after the air conditioner enters the heating mode, so that the air conditioner can stably run in the running process through multiple circulating steps, and noise generated by frequent start and stop of the compressor is avoided.
In addition, the embodiment also provides a control device of the air conditioner. Referring to fig. 5, fig. 5 is a schematic functional block diagram of a control device of an air conditioner according to an embodiment of the invention.
Specifically, referring to fig. 5, the control device of the air conditioner includes:
the acquisition module 10 acquires the current outdoor temperature of the outdoor environment where the air conditioner is located when the air conditioner is detected to enter a heating mode;
it should be understood that the outdoor temperature may be obtained by a temperature sensor provided in advance on the outside of the air conditioner, wherein the installation position of the temperature sensor may be located at any position on the outside of the air conditioner, for example, inside or outside the casing on the outside of the air conditioner, which is not limited by the present embodiment.
The control module 20 is configured to control the compressor to start to operate when the current outdoor temperature is greater than a preset outdoor temperature, and obtain a first indoor heat exchanger temperature after the compressor operates for a first preset time;
Specifically, the preset outdoor temperature refers to a preset specific temperature value for distinguishing a heating state of the current air conditioner, wherein the heating state refers to high-temperature heating and non-high-temperature heating, that is, when the outdoor temperature is greater than the preset outdoor temperature, the air conditioner is in high-temperature heating, and when the outdoor temperature is less than or equal to the preset outdoor temperature, the air conditioner is in non-high-temperature heating.
It is noted that when the air conditioner enters the heating mode from the standby mode, the shutdown mode or the refrigeration mode, the high-temperature and high-pressure gas refrigerant discharged by the compressor flows through the four-way valve, enters the indoor heat exchanger side to dissipate heat, passes through the filter, and then passes through the heating throttle valve to throttle to form a low-temperature and low-pressure refrigerant, and then enters the outdoor heat exchanger at the outdoor side to absorb heat and evaporate, and then flows into the gas-liquid separator to perform gas-liquid separation, and then the gas refrigerant returns to the compressor to circulate, and the liquid refrigerant is stored in the gas-liquid separator.
Specifically, in practical application, if it is detected that the outdoor temperature of the air conditioner is greater than a preset specific temperature value, it indicates that the air conditioner is currently in high-temperature heating, so in this embodiment, in order to avoid an excessive operating pressure of the air conditioner, the compressor is first brought into an operating state, and the external fan of the air conditioner is controlled to be started after the compressor is started to operate for a first preset time.
Further, in order to improve the running stability of the air conditioner, in this embodiment, when the starting running time of the compressor reaches the first preset time, the temperature value of the indoor heat exchanger is obtained through the first pipeline temperature sensor, and then the regulation strategy of the external fan of the air conditioner is determined through the temperature value.
It should be understood that the first preset time may be a specific time value that is preset, for example, 10s, 15s, etc.
It should be understood that the first preset time may also be the time consumed for switching the flow direction of the refrigerant in the refrigerant pipeline of the air conditioner to the heating flow direction, and it should be noted that, in the warm start stage of the compressor, the four-way valve has a delayed start condition, which results in the fact that the four-way valve is in a cooling state in the initial stage of the heating mode, so that the temperature of the indoor heat exchanger is in a falling stage, when the four-way valve is switched to the heating state, the refrigerant at the four-way valve is in a back collision, and the temperature of the indoor heat exchanger is slowly raised, so that the pressure of the air conditioner is gradually increased, and further, the compressor is stopped, so that in the embodiment, after the compressor is operated for the first preset time, the temperature value of the indoor heat exchanger is obtained by the first pipeline temperature sensor, and thus the corresponding control strategy is executed according to the temperature value.
And the adjusting module 30 is used for adjusting the running state of the external fan of the air conditioner according to the temperature of the first indoor heat exchanger.
Specifically, the external fan refers to a fan in an outdoor side area of the air conditioner, such as the first external fan shown in fig. 3, or the second external fan, and in this embodiment, the external fan may further include other external fans than those shown in fig. 3, which is not limited thereto, and the present embodiment is described with the external fan shown in fig. 3 as a representative.
In the step, the outdoor heat exchanger is positioned between the air outlet of the first outdoor fan and the air suction inlet of the second outdoor fan, so that the air quantity of the outdoor air flowing through the outdoor heat exchanger can be adjusted by adjusting the running state of the outdoor fan, the heat exchange quantity of the outdoor heat exchanger is adjusted, and the aim of adjusting the running pressure of the air conditioner is fulfilled.
Specifically, in practical application, because the temperature of the indoor heat exchanger is firstly in a falling stage and then in a slowly rising stage due to the delayed start condition of the four-way valve in the warm-up stage of the compressor, in this embodiment, when the temperature of the first indoor heat exchanger (i.e., the temperature value obtained by the first pipeline temperature sensor) is adjusted, it is firstly determined whether the first indoor heat exchanger reaches the external fan start-up operation condition, for example, the first preset temperature is 54 ℃, when the temperature value of the detected indoor heat exchanger is less than the first preset temperature of 54 ℃, it is determined that the external fan start-up operation condition is reached, and when the temperature value of the detected indoor heat exchanger is equal to the first preset temperature of 54 ℃, it is also determined that the external fan start-up operation condition is reached, and when the temperature of the indoor heat exchanger reaches the external fan start-up operation condition, the two external fans of the air conditioner are controlled to start up simultaneously.
Specifically, the first preset temperature is used for measuring whether the heat exchange amount of the outdoor heat exchanger is low, when the temperature of the first indoor heat exchanger is detected to reach the starting operation condition of the external fan, the fact that the temperature of a coil pipe of the current indoor heat exchanger is low is indicated, and the air outlet temperature at the air outlet of the air conditioner is low, so that the outdoor heat exchanger needs to strengthen the heat absorption and transfer to the indoor heat exchanger, and the air outlet temperature at the air outlet of the air conditioner reaches the user requirement.
Therefore, in this embodiment, when the temperature of the first indoor heat exchanger reaches the condition of starting the operation of the external fan, the first external fan and the second external fan are simultaneously started to operate, so that a large amount of outdoor air is driven to flow through the outdoor heat exchanger by the external fan which is simultaneously operated, and the heat absorbed by the outdoor heat exchanger is further enhanced.
In an application scenario, in order to improve heat exchange efficiency, the air inlet of the second external fan is opposite to the air outlet of the first external fan, and the outdoor heat exchanger is located between the air outlet of the first external fan and the air inlet of the second external fan, so that a heat dissipation air channel is formed between the air inlet of the second external fan and the air outlet of the first external fan, and the outdoor heat exchanger is located on the heat dissipation air channel, therefore, under the action of the suction force of the second external fan, the air exhausted by the first external fan completely flows through the heat dissipation air channel, and the heat exchange efficiency of the outdoor heat exchanger can be greatly improved.
Further, in order to avoid that when the two external fans are started to operate simultaneously to strengthen the heat absorbed by the outdoor heat exchanger, the heat absorbed by the outdoor heat exchanger is too much, so that the heat exchange of the air conditioner is strong, in the step, the operation can be controlled to be started at a stepped rotation speed first, for example, the stepped rotation speed starting operation is performed based on a preset rotation speed gear of the external fan, for example, the first external fan is exemplified by a first external fan, and the rotation speed gear of the first external fan is sequentially divided into a lowest gear, a middle gear and a highest gear, when the first external fan is started and operated for the first time, the first external fan is controlled to be started and operated at the lowest gear first, and when the heat absorbed by the outdoor heat exchanger needs to be strengthened is detected again, the first external fan is controlled to be started and operated at the middle gear second time, and so on.
Further, in order to improve the regulation accuracy of the air conditioner, when the two external fans are started to operate simultaneously, the rotation speeds of the two external fans can be reduced along with the increase of the temperature of the first indoor heat exchanger, for example, the first external fan is used for illustration, after the temperature difference between the temperature of the first indoor heat exchanger and the first preset temperature is calculated to be 5 ℃, the first external fan is controlled to start to operate at 40rpm/min, when the temperature difference is 10 ℃, the first external fan is controlled to start to operate at 80rpm/min, when the temperature difference is 15 ℃, the first external fan is controlled to start to operate at 120rpm/min, and so on.
In another application scenario, in executing the step S30, the method further includes: and if the temperature of the first indoor heat exchanger is greater than or equal to the second preset temperature, controlling an external fan of the air conditioner to stop running.
Specifically, the above second preset temperature is used for measuring whether the heat exchange amount of the outdoor heat exchanger is higher, and it is to be noted that when the heat exchange amount of the outdoor heat exchanger is higher, the heat exchange of the current air conditioner is strong, and the operation pressure of the air conditioner is high, so that in order to avoid the operation pressure of the air conditioner from continuously rising to cause the stop of the compressor, the operation of the outdoor fan of the air conditioner can be controlled to stop, so that the heat exchange amount of the outdoor heat exchanger is reduced, and the operation pressure of the air conditioner is reduced.
Further, in order to improve the heating effect of the air conditioner during the stable operation of the air conditioner, when the temperature of the first indoor heat exchanger is greater than a first preset temperature and the temperature of the first indoor heat exchanger is less than a second preset temperature, an external fan is started, namely, the first external fan of the air conditioner is started to operate, or the second external fan of the air conditioner is started, so that a small amount of outdoor air is driven to flow through the heat exchanger to perform partial heat exchange with the outdoor heat exchanger.
In this embodiment, under the relatively higher condition of outdoor temperature, the control compressor and the external fan are not started simultaneously, and the external fan is regulated and controlled according to the indoor heat exchanger temperature, so that the output of heat is reduced by the compressor through the regulation and control of the external fan, and the operating pressure of the air conditioner is reduced, and the frequent occurrence of protection shutdown of the air conditioner is avoided.
In addition, the embodiment of the present invention further provides a computer storage medium, where a control program of an air conditioner is stored, and when the control program of the air conditioner is run by a processor, steps of the control method of the air conditioner described above are implemented, which will not be described herein.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) as described above, comprising several instructions for causing a terminal device to perform the method according to the embodiments of the present invention.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or modifications in the structures or processes described in the specification and drawings, or the direct or indirect application of the present invention to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. A control method of an air conditioner, the method comprising:
When the air conditioner is detected to enter a heating mode, acquiring the current outdoor temperature of the outdoor environment where the air conditioner is positioned;
when the current outdoor temperature is higher than the preset outdoor temperature, controlling the starting operation of the compressor, and acquiring the temperature of the first indoor heat exchanger after the compressor operates for a first preset time;
adjusting the running state of an external fan of the air conditioner according to the temperature of the first indoor heat exchanger;
the step of adjusting the operation state of the external fan of the air conditioner according to the temperature of the first indoor heat exchanger comprises the following steps:
judging whether the temperature of the first indoor heat exchanger is less than or equal to a first preset temperature;
and if the temperature of the first indoor heat exchanger is less than or equal to a first preset temperature, controlling a first external fan and a second external fan of the air conditioner to start to operate, wherein the first external fan and the second external fan are fans arranged at the outdoor heat exchanger of the air conditioner.
2. The method according to claim 1, wherein after the step of determining whether the first indoor heat exchanger temperature is less than or equal to a first preset temperature, further comprising:
and if the temperature of the first indoor heat exchanger is higher than a first preset temperature and the temperature of the first indoor heat exchanger is lower than a second preset temperature, controlling a first external fan of the air conditioner or a second external fan of the air conditioner to start running.
3. The method according to claim 1, wherein after the step of adjusting the operation state of the outdoor fan of the air conditioner according to the temperature of the first indoor heat exchanger, further comprising:
acquiring a second indoor heat exchanger temperature of the air conditioner after running for a second preset time in an adjusted running state of the external fan, and taking the second indoor heat exchanger temperature as the first indoor heat exchanger temperature;
And continuously executing the step of adjusting the running state of the external fan of the air conditioner according to the temperature of the first indoor heat exchanger.
4. The method according to claim 3, wherein the step of continuously performing the adjustment of the operation state of the outdoor fan of the air conditioner according to the temperature of the first indoor heat exchanger further comprises:
If the temperature of the first indoor heat exchanger is smaller than or equal to a first preset temperature, the rotating speed of a first external fan and the rotating speed of a second external fan of the air conditioner are increased;
and if the temperature of the first indoor heat exchanger is greater than or equal to the second preset temperature, controlling the first external fan and the second external fan of the air conditioner to stop running.
5. The method according to claim 3, wherein the step of continuously performing the adjustment of the operation state of the outdoor fan of the air conditioner according to the temperature of the first indoor heat exchanger further comprises:
If the temperature of the first indoor heat exchanger is smaller than or equal to a first preset temperature, judging whether the rotating speed of an external fan of the air conditioner reaches a preset limiting rotating speed or not;
and if the rotating speed of the outer fan of the air conditioner reaches the preset limiting rotating speed, reducing the rotating speed of the inner fan of the air conditioner.
6. The method according to claim 3, wherein the step of continuously performing the adjustment of the operation state of the outdoor fan of the air conditioner according to the temperature of the first indoor heat exchanger further comprises:
And if the temperature of the first indoor heat exchanger is greater than or equal to the second preset temperature, increasing the rotating speed of an inner fan of the air conditioner.
7. The method according to any one of claims 1 to 6, wherein after the step of acquiring the current outdoor temperature of the outdoor environment in which the air conditioner is located when it is detected that the air conditioner enters the heating mode, further comprising:
And when the current outdoor temperature is less than or equal to the preset outdoor temperature, controlling the starting operation of the compressor, and controlling the starting operation of the first external fan and the second external fan of the air conditioner.
8. A control device of an air conditioner, characterized in that the control device of an air conditioner comprises:
the acquisition module is used for acquiring the current outdoor temperature of the outdoor environment where the air conditioner is positioned when the air conditioner is detected to enter a heating mode;
the control module is used for controlling the starting operation of the compressor when the current outdoor temperature is greater than the preset outdoor temperature, and acquiring the temperature of the first indoor heat exchanger after the compressor operates for a first preset time;
The adjusting module is used for adjusting the running state of the external fan of the air conditioner according to the temperature of the first indoor heat exchanger;
The adjusting module is further used for judging whether the temperature of the first indoor heat exchanger is smaller than or equal to a first preset temperature; and if the temperature of the first indoor heat exchanger is less than or equal to a first preset temperature, controlling a first external fan and a second external fan of the air conditioner to start to operate, wherein the first external fan and the second external fan are fans arranged at the outdoor heat exchanger of the air conditioner.
9. An air conditioner, characterized in that the air conditioner comprises a processor, a memory and a control program of the air conditioner stored in the memory, which when executed by the processor, realizes the steps of the control method of the air conditioner according to any one of claims 1 to 7.
10. A computer storage medium, wherein a control program of an air conditioner is stored on the computer storage medium, and the control program of the air conditioner, when executed by a processor, realizes the steps of the control method of an air conditioner according to any one of claims 1 to 7.
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