CN109059334B - Air conditioner, control method and device thereof and readable storage medium - Google Patents

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

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Publication number
CN109059334B
CN109059334B CN201810793865.6A CN201810793865A CN109059334B CN 109059334 B CN109059334 B CN 109059334B CN 201810793865 A CN201810793865 A CN 201810793865A CN 109059334 B CN109059334 B CN 109059334B
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air conditioner
refrigerant
solenoid valve
communicated
refrigerant outlet
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CN109059334A (en
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王振泉
曹姚松
叶启明
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TCL Air Conditioner Zhongshan Co Ltd
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TCL Air Conditioner Zhongshan Co Ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B13/00Compression machines, plants or systems, with reversible cycle
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/30Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/41Defrosting; Preventing freezing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63Electronic processing
    • F24F11/64Electronic processing using pre-stored data
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/89Arrangement or mounting of control or safety devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/30Expansion means; Dispositions thereof
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B43/00Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/20Humidity

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Combustion & Propulsion (AREA)
  • Thermal Sciences (AREA)
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  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Analytical Chemistry (AREA)
  • Power Engineering (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention discloses an air conditioner which comprises a refrigerant circulation loop, wherein the refrigerant circulation loop comprises a condenser, an evaporator, a compressor, a four-way valve, a throttling device, a liquid storage tank and a first electromagnetic valve which are connected through pipelines, a refrigerant outlet of the liquid storage tank is connected with a refrigerant inlet of the first electromagnetic valve, and a refrigerant outlet of the first electromagnetic valve is connected between a refrigerant outlet of the throttling device and a refrigerant inlet of the evaporator, so that when the first electromagnetic valve is opened, refrigerant in the liquid storage tank flows into the refrigerant circulation loop. The invention also discloses an air conditioner control method, an air conditioner control device and a readable storage medium. The invention can reduce condensed water generated by the air conditioner and avoid the bad phenomenon that the condensed water flows out or is blown out.

Description

Air conditioner, control method and device thereof and readable storage medium
Technical Field
The present invention relates to the field of air conditioners, and in particular, to an air conditioner, an air conditioner control method, an air conditioner control device, and a readable storage medium.
Background
The air conditioner is a common household appliance, when the air conditioner is used for refrigerating, indoor high-temperature and high-humidity air flows through the evaporator for heat exchange, and is processed into low-temperature gas to be sent into the room to achieve the purpose of refrigerating. In the heat exchange process, because the air temperature reduces, when reaching dew point temperature, unnecessary moisture will be appeared on cold surface in the air, and a small amount of condensation that produces on the evaporimeter fin can discharge outdoors through air conditioner water guide disc, but if the great amount of condensation that produces on air conditioner fan or supplementary electric heater, then can leave or blow off through the air conditioner, can leave user's wall or drip on the floor when serious, cause user complaint.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention mainly aims to provide an air conditioner, which aims to reduce condensed water generated by the air conditioner and avoid the bad phenomenon that the condensed water flows out or is blown out.
In order to achieve the above object, the present invention provides an air conditioner, which comprises a refrigerant circulation loop, wherein the refrigerant circulation loop comprises a condenser, an evaporator, a compressor, a four-way valve and a throttling device which are connected by a pipeline, the four-way valve comprises a first interface, a second interface, a third interface and a fourth interface, a refrigerant outlet of the compressor is communicated with the first interface, the second interface is communicated with a refrigerant inlet of the condenser, a refrigerant outlet of the condenser is communicated with a refrigerant inlet of the throttling device, a refrigerant outlet of the throttling device is communicated with a refrigerant inlet of the evaporator, a refrigerant outlet of the evaporator is communicated with the third interface, the fourth interface is communicated with a refrigerant inlet of the compressor, the air conditioner further comprises a liquid storage tank and a first electromagnetic valve, a refrigerant outlet of the liquid storage tank is connected with a refrigerant inlet of the first electromagnetic valve, and a refrigerant outlet of the first electromagnetic valve is connected between a refrigerant outlet of the throttling device and a refrigerant inlet of the evaporator, so that when the first electromagnetic valve is opened, the refrigerant in the liquid storage tank flows into the refrigerant circulation loop.
Optionally, the air conditioner further includes a throttling component connected in series with the first electromagnetic valve, a refrigerant inlet of the throttling component is communicated with a refrigerant outlet of the first electromagnetic valve, and a refrigerant outlet of the throttling component is connected between a refrigerant outlet of the throttling device and a refrigerant inlet of the evaporator.
Optionally, the air conditioner further includes a second electromagnetic valve, a refrigerant inlet of the second electromagnetic valve is connected between the refrigerant outlet of the condenser and the refrigerant inlet of the throttling device, and the refrigerant outlet of the second electromagnetic valve is communicated with the refrigerant inlet of the liquid storage tank.
Optionally, the air conditioner further comprises a flow regulating unit, a refrigerant inlet of the flow regulating unit is communicated with a refrigerant outlet of the second electromagnetic valve, and a refrigerant outlet of the flow regulating unit is communicated with a refrigerant inlet of the liquid storage tank.
In addition, in order to achieve the above object, the present invention further provides an air conditioner control method, based on the air conditioner as described in any one of the above, comprising the steps of:
and when the air conditioner enters a condensation control mode, the first electromagnetic valve is opened so that the refrigerant in the liquid storage tank flows into a refrigerant circulation loop of the air conditioner.
Optionally, the air conditioner control method further includes:
and when the air conditioner exits the condensation control mode, closing the first electromagnetic valve.
Optionally, when the air conditioner includes a second solenoid valve, the step of opening the first solenoid valve includes:
opening the first solenoid valve and closing the second solenoid valve;
the step of closing the first solenoid valve includes:
and closing the first electromagnetic valve and opening the second electromagnetic valve so as to enable the refrigerant part in the refrigerant circulation loop to flow into the liquid storage tank.
Optionally, when the air conditioner includes a flow rate adjusting unit, the step of opening the first solenoid valve and closing the second solenoid valve includes:
opening the first electromagnetic valve and closing the second electromagnetic valve and the flow regulating unit;
the step of closing the first solenoid valve and opening the second solenoid valve includes:
and closing the first electromagnetic valve and opening the second electromagnetic valve and the flow regulating unit so as to enable the refrigerant in the refrigerant circulation loop to flow into the liquid storage tank according to a preset flow.
Optionally, the air conditioner control method further includes:
acquiring the environmental humidity;
judging whether the environment humidity is greater than or equal to a preset threshold value;
if so, controlling the air conditioner to enter the condensation control mode;
if not, controlling the air conditioner to exit the condensation control mode.
Optionally, the step of opening the first solenoid valve comprises:
determining the continuous operation time of the first electromagnetic valve according to the environment humidity and the preset threshold value;
and controlling the first electromagnetic valve to be opened and operating the continuous operation time.
Further, to achieve the above object, the present invention also provides an air conditioner control device including: the air conditioner control method comprises a memory, a processor and an air conditioner control program stored on the memory and capable of running on the processor, wherein the air conditioner control program realizes the steps of the air conditioner control method according to any one of the above items when being executed by the processor.
Further, to achieve the above object, the present invention also provides a readable storage medium having stored thereon an air conditioner control program, which when executed by a processor, implements the steps of the air conditioner control method as set forth in any one of the above.
According to the air conditioner provided by the embodiment of the invention, the additional liquid storage tank and the first electromagnetic valve are arranged outside the refrigerant circulation loop, so that the first electromagnetic valve can be opened when the air conditioner enters a condensation control mode, the refrigerant quantity in the refrigeration circulation loop is increased, the evaporation temperature is increased, the condensation water generated by the air conditioner is reduced, and the bad phenomenon that the condensation water flows out or is blown out is avoided.
Drawings
FIG. 1 is a schematic structural diagram of a communication pipeline of an air conditioner according to an embodiment of the present invention;
FIG. 2 is a first flowchart illustrating a control method of an air conditioner according to an embodiment of the present invention;
fig. 3 is a second flowchart of the air conditioner control method according to the embodiment of the invention.
The reference numbers illustrate:
Figure BDA0001734820590000031
Figure BDA0001734820590000041
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The main solution of the embodiment of the invention is as follows: the liquid storage tank 600 and the first solenoid valve 810 are arranged outside a refrigerant circulation loop of the air conditioner, a refrigerant outlet of the liquid storage tank 600 is connected with a refrigerant inlet of the first solenoid valve 810, and a refrigerant outlet of the first solenoid valve 810 is connected between a refrigerant outlet of the throttling device 500 and a refrigerant inlet of the evaporator 200, so that when the first solenoid valve 810 is opened, the refrigerant in the liquid storage tank 600 flows into the refrigerant circulation loop.
Because among the prior art, moisture under the high temperature and high humidity environment is easily appeared on the cold surface of air conditioner, forms the condensation water, and the condensation water can leave or blow off through the air conditioner, can leave user's wall or drip on the floor when serious.
The invention provides an air conditioner, which reduces condensed water generated by the air conditioner and avoids the bad phenomenon that the condensed water flows out or is blown out.
In the embodiment of the present invention, as shown in fig. 1, the air conditioner includes a refrigerant circulation circuit including a condenser 100, an evaporator 200, a compressor 300, a four-way valve 400, and a throttle device 500 connected by a pipeline. The four-way valve 400 has a first interface, a second interface, a third interface and a fourth interface, the refrigerant outlet 320 of the compressor 300 is communicated with the first interface, the second interface is communicated with the refrigerant inlet of the condenser 100, the refrigerant outlet of the condenser 100 is communicated with the refrigerant inlet of the throttling device 500, the refrigerant outlet of the throttling device 500 is communicated with the refrigerant inlet of the evaporator 200, the refrigerant outlet of the evaporator 200 is communicated with the third interface, and the fourth interface is communicated with the refrigerant inlet 310 of the compressor 300. The direction indicated by the arrow in fig. 1 is the flow direction of the refrigerant in the connection circuit, and it should be noted that the flow direction in fig. 1 is only one example of the refrigerant according to the embodiment of the present invention.
The air conditioner further includes a reservoir tank 600 and a first solenoid valve 810. The liquid storage tank 600 is a device for storing a refrigerant, a refrigerant outlet of the liquid storage tank 600 is connected to a refrigerant inlet of the first solenoid valve 810, and a refrigerant outlet of the first solenoid valve 810 is connected between a refrigerant outlet of the throttling device 500 and a refrigerant inlet of the evaporator 200. The first solenoid valve 810 may be a check valve to ensure that the refrigerant flows from the liquid storage tank 600 to the refrigerant circulation loop.
Wherein, a two-way stop valve 700 can be arranged between the throttling device 500 and the evaporator 200, and the two-way stop valve 700 can be used for controlling the on-off of the indoor and outdoor machines of the air conditioner (namely the evaporator 200 and the condenser 100), thereby facilitating the overhaul and maintenance of the air conditioner. The refrigerant outlet of the accumulator 600 may be connected between the refrigerant inlet of the two-way stop valve 700 and the refrigerant outlet of the throttling device 500.
When the air conditioner enters the condensation control mode, the first electromagnetic valve 810 can be opened, at the moment, the refrigerant in the liquid storage tank 600 flows into the refrigerant circulation loop through the pipeline, so that the refrigerant flow in the refrigerant circulation loop is increased, the evaporation temperature of the evaporator 200 can be increased due to the increase of the refrigerant flow, the condensation water generated by the air conditioner is reduced, and the bad phenomenon that the condensation water flows out or is blown out is avoided.
Further, in order to maintain the pressure balance of the system and maintain the stable operation state of the system, the air conditioner further includes a throttling component 820 connected in series with the first electromagnetic valve 810, a refrigerant inlet of the throttling component 820 is communicated with a refrigerant outlet of the first electromagnetic valve 810, and a refrigerant outlet of the throttling component 820 is connected between a refrigerant outlet of the throttling device 500 and a refrigerant inlet of the evaporator 200. The throttling part 820 may be embodied as a capillary tube, an electronic expansion valve, or the like. When the throttle member 820 is an electronic expansion valve and the air conditioner enters a condensation control mode, the electronic expansion valve is opened while the first electromagnetic valve 810 is opened.
Further, in order not to affect the refrigeration energy efficiency of the air conditioner when the humidity of the air conditioner is low, a recovery channel may be provided to recover the refrigerant added to the refrigerant circulation circuit in the condensation control mode. The air conditioner may further include a second solenoid valve 910, a refrigerant inlet of the second solenoid valve 910 is connected between a refrigerant outlet of the condenser 100 and a refrigerant inlet of the throttling device 500, and a refrigerant outlet of the second solenoid valve 910 is communicated with a refrigerant inlet of the liquid reservoir 600, so as to form a recovery passage. The second solenoid valve 910 controls the on/off of the recovery channel, and when the second solenoid valve 910 is opened, the refrigerant in the refrigerant circulation loop may flow back to the liquid storage tank 600 through the recovery channel for storage. The second solenoid valve 910 may be a check valve, which ensures that the refrigerant flows from the refrigerant circulation loop to the liquid storage tank 600.
Further, in order to ensure that the air conditioner has sufficient refrigerant cooling operation, the air conditioner further includes a flow rate adjusting unit 920, wherein a refrigerant inlet of the flow rate adjusting unit 920 is communicated with a refrigerant outlet of the second solenoid valve 910, and a refrigerant outlet of the flow rate adjusting unit 920 is communicated with a refrigerant inlet of the liquid storage tank 600. The flow rate adjusting unit 920 may be simultaneously turned on when the second solenoid valve 910 is turned on, and is configured to adjust a flow rate of the refrigerant flowing back to the liquid storage tank 600 through the refrigerant circulation circuit.
Those skilled in the art will appreciate that the component communication conduit configuration shown in fig. 1 does not constitute a limitation of the apparatus and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
In addition, the present application also provides an air conditioner control device, which is connected to the first solenoid valve 810, the second solenoid valve 910, and the flow rate adjusting unit 920, respectively, and when the throttling member 820 is an electronic expansion valve, the air conditioner control device may be further connected to the throttling member 820. The air conditioner control device is arranged in the air conditioner and can be independently arranged independently from the air conditioner body. The air conditioner control device may be used to control the operations of the first solenoid valve 810, the second solenoid valve 910, the flow rate adjusting unit 920, and the throttling part 820. The air conditioner control device may specifically include a processor, such as a CPU, a memory, a humidity detection unit, and a communication bus. Wherein the communication bus is used for realizing connection communication among the components. The memory may be a high-speed RAM memory or a non-volatile memory, such as a disk memory. The memory may alternatively be a storage device separate from the aforementioned processor.
The humidity detection unit may be a metal oxide humidity sensor, such as a ceramic humidity sensor. The metal oxide humidity sensor uses ceramic formed by pressing and sintering metal oxide powder as a humidity sensing material, and changes the humidity into output of resistance value change, thereby realizing the detection of the humidity. The humidity detection unit can be placed in the space where the air conditioner is located and used for detecting the environment humidity of the space where the air conditioner is located.
In addition, the application also provides a computer storage medium, and the memory of the computer storage medium can comprise the air conditioner control program. The processor may be configured to call the air conditioner control program stored in the memory and perform operations of the following steps associated with the air conditioner control method.
Based on the air conditioner, an embodiment of the present invention provides an air conditioner control method, as shown in fig. 2, the air conditioner control method includes:
in step S10, when the air conditioner enters the condensation control mode, the first solenoid valve 810 is opened to allow the refrigerant in the liquid storage tank 600 to flow into the refrigerant circulation loop of the air conditioner.
The condensation control mode is specifically an operation mode of the air conditioner in which the air conditioner adjusts its own operation with a view to reducing the generation of condensation of the air conditioner. The condensation control mode can be entered after receiving a control instruction sent by a user, and the air conditioner can be controlled to enter the condensation control mode after reaching a preset condition according to the judgment of the ambient humidity.
When the air conditioner enters the condensation control mode, the first electromagnetic valve 810 is opened, so that the refrigerant in the liquid storage tank 600 can flow into the refrigerant circulation loop, and the amount of the refrigerant in the refrigerant circulation loop is increased.
At this time, if the air conditioner is provided with the throttling part 820 connected in series with the first solenoid valve 810, and the throttling part 820 is an electronic expansion valve, the throttling part 820 is opened while the first solenoid valve 810 is opened. Wherein, the opening degree of the throttling part 820 can be determined according to the environment humidity, or according to the environment humidity and a preset threshold value, etc.
Specifically, the air conditioner control method further determines whether the air conditioner enters a condensation control mode by:
step S00, acquiring the environmental humidity;
step S01, judging whether the environmental humidity is larger than or equal to a preset threshold value;
if yes, go to step S02; if not, go to step S03;
step S02, controlling the air conditioner to enter the condensation control mode;
and step S03, controlling the air conditioner to exit the condensation control mode.
The ambient humidity (which may be an indoor ambient humidity or an outdoor ambient humidity, especially an indoor ambient humidity) is obtained through a humidity detection unit (e.g., a metal oxide humidity sensor) disposed in the air conditioner, so that the obtained ambient humidity is more targeted. The size of the preset threshold value can be specifically set by combining the characteristics of the air conditioner, the characteristics of the use environment and the like. When the ambient humidity is greater than or equal to the preset threshold, the ambient humidity is considered to be greater, so that the air conditioner is easy to generate a large amount of condensation, and the air conditioner can be controlled to enter a condensation control mode at the moment so as to reduce the generation of the condensation; when the ambient humidity is less than the preset threshold value, the ambient humidity is considered to be low, a large amount of condensation can not be generated by the air conditioner, and the condensation control mode can be quitted at the moment, so that the air conditioner can be in better efficiency. In addition, the condensation control mode can be entered when the difference between the ambient humidity and the preset threshold is greater than or equal to the preset value, and the condensation control mode can be exited when the difference is less than the preset value.
In step S20, when the air conditioner exits the condensation control mode, the first solenoid valve 810 is closed.
When the air conditioner exits the condensation control mode, condensation is prevented without increasing a refrigerant, at the moment, the first electromagnetic valve 810 is closed, the refrigerant in the liquid storage tank 600 stops flowing to the refrigerant circulation loop, and the air conditioner operates normally.
In this embodiment, the first solenoid valve 810 is opened in the condensation control mode to increase the refrigerant amount in the refrigerant circulation loop, so as to increase the evaporation temperature of the air conditioner, thereby reducing the generation of condensation water in the air conditioner and avoiding the occurrence of a bad phenomenon that the condensation water flows out or is blown out.
Further, when the air conditioner is provided with the second electromagnetic valve 910, the step of opening the first electromagnetic valve includes:
step S11, opening the first solenoid valve 810 and closing the second solenoid valve 910;
the step of closing the first solenoid valve 810 includes:
in step S21, the first solenoid valve 810 is closed and the second solenoid valve 910 is opened, so that the refrigerant in the refrigerant circulation loop flows into the accumulator 600.
By controlling the first solenoid valve 810 and the second solenoid valve 910 in the above manner, the refrigerant in the liquid storage tank 600 may flow to the refrigerant circulation loop in the condensation control mode, so as to increase the amount of the refrigerant in the refrigerant circulation loop. When the air conditioner is not in the condensation control mode, redundant refrigerants in the refrigerant circulation loop flow back to the liquid storage tank 600, so that the energy efficiency of the air conditioner is improved, and the refrigeration effect of the air conditioner is guaranteed.
Further, when the air conditioner is provided with the flow rate adjusting unit 920, the step of opening the first electromagnetic valve 810 and closing the second electromagnetic valve 910 includes:
step S12, opening the first solenoid valve 810, and closing the second solenoid valve 910 and the flow rate adjustment unit 920;
the step of closing the first solenoid valve 810 and opening the second solenoid valve 910 includes:
in step S22, the first solenoid valve 810 is closed, and the second solenoid valve 910 and the flow rate adjustment unit 920 are opened, so that the refrigerant in the refrigerant circulation loop flows into the liquid storage tank according to a preset flow rate.
By controlling the first solenoid valve 810, the second solenoid valve 910 and the flow rate adjusting unit 920 in the above manner, the refrigerant in the liquid storage tank 600 flows to the refrigerant circulation loop in the condensation control mode, so as to increase the amount of the refrigerant in the refrigerant circulation loop. When the air conditioner is not in the condensation control mode, the refrigerant in the refrigerant circulation loop flows back to the liquid storage tank 600. When the refrigerant in the refrigerant circulation loop is recovered, the flow rate of the recovered refrigerant can be controlled to be a preset flow rate by the flow rate adjusting unit 920, for example, 30% of the refrigerant in the refrigerant circulation loop is controlled to flow back to the liquid storage tank 600, so that the situation that the stable operation of the air conditioner is influenced by excessive recovered refrigerant is avoided, the energy efficiency of the air conditioner is improved, and the refrigeration effect of the air conditioner is ensured.
Further, as shown in fig. 3, in the steps of the air conditioner control method, the step of opening the first electromagnetic valve 810 specifically includes:
step S101, determining the continuous operation time of the first electromagnetic valve 810 according to the environment humidity and the preset threshold;
and step S102, controlling the first electromagnetic valve 810 to be opened, and operating the continuous operation time.
Specifically, the duration of the operation of the first solenoid valve 810 may be determined according to the difference between the ambient humidity and a preset threshold. The different difference values correspond to different continuous operation times, and the larger the difference value is, the larger the continuous operation time is, and the more the refrigerant quantity is supplemented into the refrigerant circulation loop from the liquid storage tank 600.
Because too much refrigerant in the refrigerant circulation loop may affect the cooling effect of the air conditioner, a time threshold may be predetermined, and after determining the duration time, it is determined whether the duration time is greater than the predetermined time threshold, if so, the duration time of the first solenoid valve 810 is corrected to the time threshold, and if not, the duration time of the first solenoid valve 810 is maintained unchanged.
After the continuous operation time of the first solenoid valve 810 is determined, the first solenoid valve 810 may be opened, and the first solenoid valve 810 may be controlled to be closed after the continuous operation time is maintained.
By the mode, the refrigerant circulation loop can be ensured to have enough refrigerant, so that the air conditioner is prevented from generating a large amount of condensation. The first solenoid valve 810 is closed after the first solenoid valve 810 maintains the continuous operation time, so that the phenomenon that the operation of the air conditioner is influenced by excessive refrigerant quantity in the refrigerant circulation loop can be avoided, and the refrigeration effect of the air conditioner is ensured.
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 an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. An air conditioner comprises a refrigerant circulation loop, wherein the refrigerant circulation loop comprises a condenser, an evaporator, a compressor, a four-way valve and a throttling device which are connected through pipelines, the four-way valve is provided with a first interface, a second interface, a third interface and a fourth interface, a refrigerant outlet of the compressor is communicated with the first interface, the second interface is communicated with a refrigerant inlet of the condenser, a refrigerant outlet of the condenser is communicated with a refrigerant inlet of the throttling device, a refrigerant outlet of the throttling device is communicated with a refrigerant inlet of the evaporator, a refrigerant outlet of the evaporator is communicated with the third interface, and the fourth interface is communicated with a refrigerant inlet of the compressor, and a refrigerant outlet of the first electromagnetic valve is connected between a refrigerant outlet of the throttling device and a refrigerant inlet of the evaporator, and the first electromagnetic valve is opened under a condensation control mode of the air conditioner, so that the refrigerant in the liquid storage tank flows into the refrigerant circulation loop.
2. The air conditioner as claimed in claim 1, further comprising a throttling part connected in series with the first solenoid valve, wherein a refrigerant inlet of the throttling part is communicated with a refrigerant outlet of the first solenoid valve, and a refrigerant outlet of the throttling part is connected between a refrigerant outlet of the throttling device and a refrigerant inlet of the evaporator.
3. The air conditioner as claimed in claim 2, further comprising a second solenoid valve, wherein a refrigerant inlet of the second solenoid valve is connected between the refrigerant outlet of the condenser and the refrigerant inlet of the throttling device, and the refrigerant outlet of the second solenoid valve is communicated with the refrigerant inlet of the liquid reservoir.
4. The air conditioner as claimed in claim 3, further comprising a flow rate adjusting unit, wherein a refrigerant inlet of the flow rate adjusting unit is communicated with a refrigerant outlet of the second solenoid valve, and a refrigerant outlet of the flow rate adjusting unit is communicated with a refrigerant inlet of the liquid reservoir.
5. An air conditioner control method based on the air conditioner as claimed in any one of claims 1 to 4, characterized in that the air conditioner control method comprises the steps of:
and when the air conditioner enters a condensation control mode, the first electromagnetic valve is opened so that the refrigerant in the liquid storage tank flows into a refrigerant circulation loop of the air conditioner.
6. The air conditioner controlling method as claimed in claim 5, further comprising the steps of:
and when the air conditioner exits the condensation control mode, closing the first electromagnetic valve.
7. The air conditioner controlling method as claimed in claim 6, wherein, when the air conditioner includes a second solenoid valve, the step of opening the first solenoid valve includes:
opening the first solenoid valve and closing the second solenoid valve;
the step of closing the first solenoid valve includes:
and closing the first electromagnetic valve and opening the second electromagnetic valve so as to enable the refrigerant part in the refrigerant circulation loop to flow into the liquid storage tank.
8. The air conditioner controlling method as claimed in any one of claims 5 to 7, further comprising:
acquiring the environmental humidity;
judging whether the environment humidity is greater than or equal to a preset threshold value;
if so, controlling the air conditioner to enter the condensation control mode;
if not, controlling the air conditioner to exit the condensation control mode.
9. An air conditioner control device characterized by comprising: a memory, a processor and an air conditioner control program stored on the memory and executable on the processor, the air conditioner control program when executed by the processor implementing the steps of the air conditioner control method as claimed in any one of claims 5 to 8.
10. A readable storage medium having stored thereon an air conditioner control program, which when executed by a processor, implements the steps of the air conditioner control method according to any one of claims 5 to 8.
CN201810793865.6A 2018-07-18 2018-07-18 Air conditioner, control method and device thereof and readable storage medium Active CN109059334B (en)

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