CN114688702A - Control method and control device of air conditioner and air conditioner - Google Patents

Control method and control device of air conditioner and air conditioner Download PDF

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Publication number
CN114688702A
CN114688702A CN202210449675.9A CN202210449675A CN114688702A CN 114688702 A CN114688702 A CN 114688702A CN 202210449675 A CN202210449675 A CN 202210449675A CN 114688702 A CN114688702 A CN 114688702A
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Prior art keywords
air conditioner
refrigerant
control mode
heat exchanger
refrigeration
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CN202210449675.9A
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CN114688702B (en
Inventor
黎顺全
陶骙
李鸿耀
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GD Midea Air Conditioning Equipment Co Ltd
Midea Group Wuhan HVAC Equipment Co Ltd
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GD Midea Air Conditioning Equipment Co Ltd
Midea Group Wuhan HVAC Equipment Co Ltd
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Priority to CN202210449675.9A priority Critical patent/CN114688702B/en
Publication of CN114688702A publication Critical patent/CN114688702A/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
    • F24F11/65—Electronic processing for selecting an operating mode
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/48—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring prior to normal operation, e.g. pre-heating or pre-cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/89—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
    • F24F5/0017—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using cold storage bodies, e.g. ice
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/40—Fluid line arrangements
    • 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
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14—Thermal energy storage

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

Abstract

The invention discloses a control method and a control device of an air conditioner and the air conditioner, wherein the method comprises the following steps: when the air conditioner is switched to a refrigeration mode, the air conditioner is controlled to operate in a first refrigeration control mode, wherein in the operation process of the first refrigeration control mode, the first electromagnetic valve is in a closed state, the second electromagnetic valve is in an open state, and a refrigerant output by the outdoor heat exchanger flows through the cold accumulation module through the second refrigerant pipeline and absorbs the cold energy of the cold accumulation module and then is input into the indoor heat exchanger. The cold storage module stores cold energy in advance, when the air conditioner is switched to the refrigeration mode, the refrigerant output by the outdoor heat exchanger enters the cold storage module through the second refrigerant pipeline to realize secondary supercooling, the actual temperature of the refrigerant is further reduced, the unit mass refrigerating capacity of the refrigerant is increased, the refrigerating effect can be effectively improved after the refrigerant enters the indoor heat exchanger, quick refrigeration is realized under the condition that the refrigeration mode is restarted by the air conditioner, the user can feel the cooling effect more quickly, and the user experience is effectively improved.

Description

Control method and control device of air conditioner and air conditioner
Technical Field
The invention relates to the technical field of air conditioner control, in particular to a control method and a control device of an air conditioner and the air conditioner.
Background
In a refrigeration mode of the air conditioner, a high-temperature refrigerant is compressed by a compressor and then enters a heat exchanger, a low-temperature refrigerant obtained by exchanging heat with the outside of a room in the heat exchanger enters an indoor heat exchanger, and air blown out of the indoor heat exchanger is refrigerated, so that refrigeration is realized. After the air conditioner is shut down, the refrigerant stops flowing in the pipeline, and under the condition that the air conditioner restarts the refrigeration mode, the refrigerant needs a period of time to be able to enter a stable refrigeration cycle, and the refrigeration effect of the air conditioner before that is not ideal, especially under the condition that the indoor temperature is higher, even if the heat exchange air volume is improved, the indoor temperature is difficult to rapidly drop, and the user experience is poor.
Disclosure of Invention
The invention aims to at least solve one of the technical problems in the prior art, and provides a control method and a control device of an air conditioner and the air conditioner, which can effectively improve the refrigeration effect and improve the user experience.
In a first aspect, an embodiment of the present invention provides a control method for an air conditioner, where the air conditioner includes an indoor heat exchanger and an outdoor heat exchanger, a first refrigerant pipeline and a second refrigerant pipeline are provided between a refrigerant output end of the outdoor heat exchanger and a refrigerant input end of the indoor heat exchanger, the first refrigerant pipeline and the second refrigerant pipeline are connected in parallel, the first refrigerant pipeline is provided with a first electromagnetic valve, the second refrigerant pipeline is provided with a second electromagnetic valve and a cold storage module in which cold is stored in advance, and the control method for the air conditioner includes:
when the air conditioner is switched to a refrigeration mode, the air conditioner is controlled to operate in a first refrigeration control mode, wherein in the operation process of the first refrigeration control mode, the first electromagnetic valve is in a closed state, the second electromagnetic valve is in an open state, and a refrigerant output by the outdoor heat exchanger flows through the cold accumulation module through the second refrigerant pipeline and absorbs the cold energy of the cold accumulation module and then is input into the indoor heat exchanger.
The control method of the air conditioner provided by the embodiment of the invention at least has the following beneficial effects: the cold-storage module of air conditioner stores cold volume in advance, the first refrigeration control mode of operation when the air conditioner switches to the refrigeration mode, the cold volume of cold-storage module is absorbed through the cold-storage module of second refrigerant pipeline flow through to the refrigerant of outdoor heat exchanger output, thereby realize the secondary subcooling of refrigerant, the actual temperature of refrigerant has further been reduced, the unit mass refrigerating capacity of refrigerant is increased, can effectively improve refrigeration effect after getting into indoor heat exchanger, realize quick refrigeration under the condition of air conditioner restart refrigeration mode, make the user can experience the cooling effect sooner, effectively promote user experience.
In a control method of an air conditioner according to an embodiment, when the air conditioner is switched to a cooling mode, controlling the air conditioner to operate in a first cooling control mode includes:
when the air conditioner is switched to a refrigeration mode, acquiring the ambient temperature;
and when the ambient temperature is greater than or equal to a preset first temperature threshold value, controlling the air conditioner to operate in the first refrigeration control mode.
In the control method of an air conditioner of an embodiment, after the obtaining of the ambient temperature, the method further includes:
and when the ambient temperature is lower than the first temperature threshold value, controlling the air conditioner to operate in a second refrigeration control mode, wherein in the operation process of the second refrigeration control mode, the first electromagnetic valve is in an open state, the second electromagnetic valve is in a closed state, and the refrigerant output by the outdoor heat exchanger is input to the indoor heat exchanger through the first refrigerant pipeline.
In the control method of an air conditioner of an embodiment, after the controlling the air conditioner to operate in the first cooling control mode, the method further includes:
acquiring a preset first time length threshold;
and when the running time of the first refrigeration control mode is greater than or equal to the first time threshold, controlling the air conditioner to run in a second refrigeration control mode, wherein in the running process of the second refrigeration control mode, the first electromagnetic valve is in an open state, the second electromagnetic valve is in a closed state, and the refrigerant output by the outdoor heat exchanger is input to the indoor heat exchanger through the first refrigerant pipeline.
In the control method of an air conditioner according to an embodiment, the air conditioner further includes a compressor, the compressor is connected to a refrigerant input end of the outdoor heat exchanger, a third refrigerant pipeline and a fourth refrigerant pipeline are arranged between a refrigerant output end of the indoor heat exchanger and the compressor, the third refrigerant pipeline and the fourth refrigerant pipeline are connected in parallel, the third refrigerant pipeline is provided with a third electromagnetic valve and the cold accumulation module, the fourth refrigerant pipeline is provided with a fourth electromagnetic valve, and after the air conditioner is controlled to operate in a second refrigeration control mode, the method further includes:
and controlling the air conditioner to operate in a first cold accumulation control mode, wherein in the first cold accumulation control mode, the third electromagnetic valve is in an open state, the fourth electromagnetic valve is in a closed state, and a refrigerant output by the indoor heat exchanger flows through the cold accumulation module through the third refrigerant pipeline to absorb heat of the cold accumulation module and then is input into the compressor.
In a control method of an air conditioner of an embodiment, the controlling the air conditioner to operate in a first cold storage control mode includes:
acquiring the suction temperature of the compressor;
and when the air suction temperature is lower than a preset second temperature threshold value, controlling the air conditioner to operate in the first cold storage control mode.
In the control method of an air conditioner of an embodiment, after the obtaining of the suction temperature of the compressor, the method further includes:
and when the air suction temperature is greater than or equal to the second temperature threshold value, controlling the air conditioner to operate in a second cold accumulation control mode, wherein in the second cold accumulation control mode, the third electromagnetic valve is in a closed state, the fourth electromagnetic valve is in an open state, and the refrigerant output by the indoor heat exchanger is input into the compressor through the fourth refrigerant pipeline.
In the control method of an air conditioner of an embodiment, after the controlling the air conditioner to operate the second cold storage control mode, the method further includes:
acquiring a preset second duration threshold;
when the operation time of the second cold accumulation control mode is equal to the second time threshold, the air suction temperature of the compressor is obtained again;
and when the acquired suction temperature of the compressor is less than the second temperature threshold value, controlling the air conditioner to operate the first cold storage control mode.
In the control method of an air conditioner of an embodiment, after the controlling the air conditioner to operate the first cold storage control mode, the method further includes:
acquiring a preset third time length threshold;
and when the operation time of the first cold accumulation control mode is greater than or equal to the third time threshold value, controlling the air conditioner to operate a second cold accumulation control mode, wherein in the second cold accumulation control mode, the third electromagnetic valve is in a closed state, the fourth electromagnetic valve is in an open state, and the refrigerant output by the indoor heat exchanger is input into the compressor through the fourth refrigerant pipeline.
In a control method of an air conditioner of an embodiment, after the controlling the air conditioner to operate in a first cooling control mode, the method further includes:
and controlling the air conditioner to operate in a second cold accumulation control mode, wherein in the second cold accumulation control mode, the third electromagnetic valve is in a closed state, the fourth electromagnetic valve is in an open state, and the refrigerant output by the indoor heat exchanger is input into the compressor through the fourth refrigerant pipeline.
In the control method of an air conditioner of an embodiment, the air conditioner further includes an outdoor fan, and after the operating the first cooling control mode, the method further includes:
and adjusting the rotating speed of the outdoor fan to a preset rotating speed.
In a second aspect, an embodiment of the present invention provides a control apparatus for an air conditioner, including at least one control processor and a memory, wherein the memory is used for being connected to the at least one control processor in a communication manner; the memory stores instructions executable by the at least one control processor to enable the at least one control processor to perform the method of controlling an air conditioner as described in the embodiment of the first aspect above.
In a third aspect, an embodiment of the present invention provides an air conditioner, including the control device of the air conditioner as described in the second aspect.
In a fourth aspect, embodiments of the present invention provide a computer-readable storage medium storing computer-executable instructions for causing a computer to perform the method for controlling an air conditioner as described in the first aspect.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the example serve to explain the principles of the invention and not to limit the invention.
The invention is further described below with reference to the accompanying drawings and examples;
fig. 1 is a schematic structural diagram of an air conditioner according to an embodiment of the present invention;
fig. 2 is a flowchart of a control method of an air conditioner according to another embodiment of the present invention;
FIG. 3 is a detailed flowchart of step S210 in FIG. 2;
FIG. 4 is another detailed flowchart of FIG. 2 after step S210;
FIG. 5 is another detailed flowchart of FIG. 3 after step S320;
FIG. 6 is another detailed flowchart after step S410 in FIG. 4 or step S520 in FIG. 5;
FIG. 7 is a detailed flowchart of step S610 in FIG. 3;
FIG. 8 is another detailed flowchart of FIG. 7 after step S710;
FIG. 9 is another detailed flowchart following step S810 in FIG. 8;
FIG. 10 is another detailed flowchart of FIG. 8 after step S810;
FIG. 11 is another detailed flowchart of FIG. 2 after step S210;
FIG. 12 is another detailed flowchart of FIG. 2 after step S210;
FIG. 13 is a flow chart of a specific example provided by another embodiment of the present invention;
fig. 14 is a schematic structural diagram of a control device of an air conditioner according to another embodiment of the present invention.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the description of the present invention, if there are first and second described only for the purpose of distinguishing technical features, it is not understood that relative importance is indicated or implied or that the number of indicated technical features or the precedence of the indicated technical features is implicitly indicated or implied.
In the description of the present invention, unless otherwise specifically limited, terms such as set, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention by combining the specific contents of the technical solutions.
Air conditioners are generally installed on a window frame of a wall body to cool or heat an indoor environment. The refrigerant is a key factor of air conditioner refrigeration, a refrigerant pipeline is arranged between an indoor unit and an outdoor unit of the air conditioner, and when the air conditioner is in a refrigeration mode, the refrigerant circulates in the refrigerant pipeline and enters the outdoor unit to dissipate heat after the indoor unit absorbs heat. After the air conditioner is shut down, the refrigerant stops flowing in the refrigerant pipeline, when the air conditioner is restarted and a refrigeration mode is carried out, a certain time is consumed from the start compression of the compressor to the inflow of the low-temperature refrigerant into the indoor unit, the refrigerant cannot be rapidly circulated in the time, and the cold quantity generated by the air conditioner is limited. In the related art, the heat exchange amount of the outdoor heat exchanger is increased by adopting a means of improving the heat exchange air volume, although the heat exchange efficiency of the refrigerant is increased, the saturation temperature corresponding to the pressure of the refrigerant output by the outdoor heat exchanger does not change, namely, the temperature of the refrigerant input to the indoor heat exchanger is the same as the normal circulation, under the condition that the refrigerant input to the indoor heat exchanger is less, the effect of increasing the heat exchange air volume is limited, but the cooling effect is limited by the number of the refrigerants, at the initial stage of starting refrigeration of the air conditioner, the refrigerant is not circulated, a user can feel cool in a longer time, and the user experience is poor.
Based on the control method, the control device and the storage medium, the cold accumulation module is arranged between the indoor heat exchanger and the outdoor heat exchanger of the air conditioner, cold energy is stored in the cold accumulation module in advance, when the air conditioner is switched to the refrigeration mode, the first refrigeration control mode is operated, low-temperature refrigerant output by the outdoor heat exchanger flows through the cold accumulation module through the second refrigerant pipeline to absorb the cold energy of the cold accumulation module, so that secondary supercooling of the refrigerant is realized, the actual temperature of the refrigerant is further reduced, the unit mass refrigeration quantity of the refrigerant is increased, the refrigeration effect can be effectively improved after the refrigerant enters the indoor heat exchanger, quick refrigeration is realized under the condition that the refrigeration mode of the air conditioner is restarted, a user can feel the cooling effect more quickly, and the user experience is effectively improved.
The embodiments of the present invention will be further explained with reference to the drawings.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an air conditioner according to an embodiment of the present invention, which includes but is not limited to: the air conditioner comprises an indoor heat exchanger (not shown in the figure), an outdoor heat exchanger 110 and a compressor 150, wherein a first refrigerant pipeline 141 and a second refrigerant pipeline 142 are arranged between a refrigerant output end of the outdoor heat exchanger 110 and a refrigerant input end of the indoor heat exchanger, the first refrigerant pipeline 141 and the second refrigerant pipeline 142 are connected in parallel, the first refrigerant pipeline 141 is provided with a first electromagnetic valve 121, the second refrigerant pipeline 142 is provided with a second electromagnetic valve 122 and a cold accumulation module 130 stored with cold energy in advance, the compressor 150 is connected with the refrigerant input end of the outdoor heat exchanger 110, a third refrigerant pipeline 143 and a fourth refrigerant pipeline 144 are arranged between the refrigerant output end of the indoor heat exchanger and the compressor 150, the third refrigerant pipeline 143 and the fourth refrigerant pipeline 144 are connected in parallel, the third refrigerant pipeline 143 is provided with a third electromagnetic valve 123 and the cold accumulation module 130, and the fourth refrigerant pipeline 144 is provided with a fourth electromagnetic valve 124.
It should be noted that the cold storage module 130 can be a phase change cold storage and heat exchange device, two micro-channel heat exchangers are disposed in the cold storage module 130, and a phase change cold storage material is disposed between the two micro-channel heat exchangers, so that cold can be stored in the cold storage module 130 through phase change heat exchange, for example, as shown in fig. 1, a first micro-channel heat exchanger 131 and a second micro-channel heat exchanger 132 are disposed in the cold storage module 130, a second refrigerant pipeline 142 is connected to the first micro-channel heat exchanger 131, a third refrigerant pipeline 143 is connected to the second micro-channel heat exchanger 132, a refrigerant output from an outdoor heat exchanger can enter the first micro-channel heat exchanger 131 through the second refrigerant pipeline 142, the phase change cold storage material performs phase change heat absorption, the cold storage module releases the cold stored in advance into the refrigerant, the refrigerant realizes secondary supercooling, and increases the supercooling degree of the refrigerant by reducing the actual temperature of the refrigerant, thereby improving the refrigeration effect; meanwhile, before the refrigerant output by the indoor heat exchanger enters the compressor, the refrigerant can enter the second micro heat exchange channel 132 through the third refrigerant pipeline 143, the phase change material performs phase change heat release, and heat is exchanged into the refrigerant, so that the temperature of the phase change cold storage material in the cold storage module 130 is reduced, and cold storage is realized. Of course, the structure of the cold storage module 130 is only an example, and other structures capable of realizing heat exchange and cold storage may also be adopted, and the cold storage module 130 may also have more micro-channel heat exchangers, and the realization of cold storage is not limited to phase change cold storage materials, and can realize cold storage and cold release.
It should be noted that the second electromagnetic valve 122 may be disposed in front of the input end of the first microchannel heat exchanger 131 of the cold storage module 130, the refrigerant entering the second refrigerant pipeline 142 first passes through the second electromagnetic valve 122, and then enters the first microchannel heat exchanger 131, and when the second electromagnetic valve 122 is in a closed state, the refrigerant does not enter the cold storage module 130, so as to avoid wasting the cold energy stored in the cold storage module 130 when the rapid refrigeration is not needed. Similarly, the third solenoid valve 123 may be disposed in front of the input end of the second microchannel heat exchanger 132, the refrigerant entering the third refrigerant pipeline 143 first passes through the third solenoid valve 123, and then enters the second microchannel heat exchanger 132, and when the third solenoid valve 123 is in a closed state, the refrigerant does not enter the cold storage module 130, so as to avoid unnecessary heat exchange.
It should be noted that, in order to implement the control of the air conditioner, an expansion valve 160 may be further disposed at the refrigerant input end of the indoor heat exchanger, a gas-liquid separator 170 is disposed at the input end of the compressor 150, and the structures and principles of the expansion valve 160 and the gas-liquid separator 170 are well known to those skilled in the art and will not be described herein.
Based on the air conditioner 100 described above, various embodiments of the air conditioner control method of the present invention are proposed.
As shown in fig. 2, fig. 2 is a flowchart of a control method of an air conditioner according to an embodiment of the present invention, which can be applied to the controller of the air conditioner shown in fig. 1, and the control method of the air conditioner includes, but is not limited to, step S210.
Step S210: when the air conditioner is switched to a refrigeration mode, the air conditioner is controlled to operate in a first refrigeration control mode, wherein in the operation process of the first refrigeration control mode, the first electromagnetic valve is in a closed state, the second electromagnetic valve is in an open state, and a refrigerant output by the outdoor heat exchanger flows through the cold accumulation module through the second refrigerant pipeline and absorbs cold energy of the cold accumulation module and then is input into the indoor heat exchanger.
The supercooling degree of the refrigerant refers to a difference value between a saturation temperature corresponding to the pressure of the refrigerant output by the outdoor radiator and the actual temperature of the refrigerant, and the higher the supercooling degree of the refrigerant is, the higher the refrigerating capacity per unit mass of the refrigerant is, and the better cooling effect can be achieved. The refrigerant of outdoor heat exchanger output is the liquid refrigerant that obtains after the heat dissipation, in order to improve the super-cooled rate of refrigerant, this embodiment is after the air conditioner switches to the refrigeration mode, close first solenoid valve and open the second solenoid valve, first refrigerant pipeline is truncated by first solenoid valve, the liquid refrigerant passes through the circulation of second refrigerant pipeline, and flow through the cold-storage module in the flow process, because the cold-storage module stores cold volume in advance, through the phase transition release cold volume of cold-storage material, make the liquid refrigerant can absorb cold in the cold-storage module and cool down, the secondary super-cooled of liquid refrigerant has been realized, improve the super-cooled rate of liquid refrigerant through the actual temperature that reduces liquid refrigerant. Through the technical scheme of this embodiment, the cold volume that the utilization was saved in the cold-storage module in advance is cooled down to liquid refrigerant, make the temperature of the liquid refrigerant that gets into indoor heat exchanger obtain effectual reduction when exporting from outdoor heat exchanger, switch to the refrigeration mode at the air conditioner, the refrigerant does not get into under the circumstances that the circulation leads to refrigerant quantity not enough, the promotion of unit mass refrigerating output has been realized to the refrigerant that the temperature is lower, effectively improve indoor cooling efficiency, make indoor temperature can descend sooner, let the user experience cool and pleased in feeling in the shorter time, improve user experience.
It should be noted that the triggering instruction of the first refrigeration control mode may be that the air conditioner is switched to the refrigeration mode, for example, the air conditioner is started from a shutdown state and enters the refrigeration mode, in this scenario, each fan and compressor of the air conditioner are started, the refrigerant starts to flow in each refrigerant pipeline, and reaches a normal cycle after a period of time, and before reaching the normal cycle, the supercooling degree of the refrigerant entering the indoor heat exchanger can be increased by operating the first refrigeration control mode, so that the refrigeration effect is improved, and rapid refrigeration is realized. Of course, the first refrigeration control mode may also be started when the air conditioner is switched from another operation mode to the refrigeration mode, for example, the air draft mode may be switched to the refrigeration mode, so that the refrigerant does not enter the refrigeration cycle when being switched to the refrigeration mode.
In addition, as shown in fig. 3, fig. 3 is a specific flowchart of step S210 in fig. 2, and in the example of fig. 3, step S210 further includes, but is not limited to, step S310 to step S320.
Step S310, when the air conditioner is switched to a refrigeration mode, obtaining the ambient temperature;
and step S320, when the ambient temperature is greater than or equal to a preset first temperature threshold value, controlling the air conditioner to operate in a first refrigeration control mode.
It should be noted that, after the air conditioner is switched to the refrigeration mode, according to the description of the above embodiment, the rapid cooling may be implemented through the first refrigeration control mode, and under the condition that the indoor temperature is appropriate, the air conditioner enters the refrigeration mode from the shutdown state, even if the rapid cooling is not performed, the user may not feel uncomfortable because of the room temperature, and may waste the cold energy stored in the cold storage module.
It can be understood that the collection of the ambient temperature can be realized by a temperature sensor arranged in the indoor unit, the collection of the ambient temperature can be real-time collection when the air conditioner is in a power-on state, or collection can be performed according to a set collection period, and a person skilled in the art knows how to set the temperature sensor and obtain the ambient temperature according to actual needs, which is not described herein in detail.
It should be noted that the first temperature threshold may be set according to an actual requirement, for example, a higher temperature value may be set as the first temperature threshold, and when the ambient temperature is greater than or equal to the first temperature threshold, it may be determined that the current indoor temperature is higher, and a user may feel hot indoors, and needs to quickly cool the user as soon as possible to improve the cooling experience of the air conditioner.
In addition, as shown in fig. 4, fig. 4 is a specific flowchart further included after step S320 in fig. 3, and in the example of fig. 4, step S210 further includes, but is not limited to, step S410.
And S410, when the ambient temperature is lower than the first temperature threshold value, controlling the air conditioner to operate in a second refrigeration control mode, wherein in the operation process of the second refrigeration control mode, the first electromagnetic valve is in an open state, the second electromagnetic valve is in a closed state, and the refrigerant output by the outdoor heat exchanger is input to the indoor heat exchanger through the first refrigerant pipeline.
It should be noted that, with reference to the scheme of the embodiment shown in fig. 3, when the ambient temperature is less than the first temperature threshold, it may be determined that the current indoor temperature is relatively proper, the user experience improvement caused by operating the first refrigeration control mode is relatively small, and the indoor temperature is also easily reduced to be lower than the set temperature, for example, when the indoor temperature is close to the refrigeration temperature set by the user, if the first refrigeration control mode is operated, the indoor temperature is rapidly reduced to be lower than the refrigeration temperature set by the user, but the user experience is affected, therefore, when the ambient temperature is less than the first temperature threshold, it may be considered that rapid refrigeration is not needed, at this time, the second refrigeration control mode may be operated, the first electromagnetic valve is opened, the second electromagnetic valve is closed, so that the refrigerant output by the outdoor heat exchanger directly enters the indoor heat exchanger through the first refrigerant pipeline, and performs conventional refrigeration, the cold energy stored by the cold accumulation module is saved under the condition of ensuring the user experience.
In addition, as shown in fig. 5, fig. 3 is a specific flowchart further included after step S320 in fig. 2, and in the example of fig. 5, step S320 further includes, but is not limited to, step S510 to step S520.
Step S510, acquiring a preset first time length threshold;
and step S520, when the running time of the first refrigeration control mode is greater than or equal to the first time threshold, controlling the air conditioner to run in a second refrigeration control mode, wherein in the running process of the second refrigeration control mode, the first electromagnetic valve is in an open state, the second electromagnetic valve is in a closed state, and the refrigerant output by the outdoor heat exchanger is input into the indoor heat exchanger through the first refrigerant pipeline.
It should be noted that the operation duration of the first cooling mode can be obtained through a timing function set in the air conditioner, which is well known to those skilled in the art and will not be described herein.
It should be noted that the first time threshold may be set according to the cooling rate and the cooling demand of the first refrigeration control mode, for example, in the first refrigeration control mode, the indoor temperature may be decreased by N degrees in a unit time, and the user may feel cooling when the indoor temperature is decreased by M degrees, so that the first time threshold may be set according to a quotient of M and N, or may be determined according to other rules, and the user may generate cooling after the first refrigeration control mode operates according to the first time threshold.
It should be noted that, the first refrigeration control mode is operated not to reduce the room temperature to the refrigeration temperature set by the user at the fastest speed, but to realize rapid cooling by using the cold energy stored in advance, so that after the first refrigeration control mode is operated according to the first time threshold, it can be determined that the room temperature has been effectively reduced, so that the user generates cool feeling.
It should be noted that, if the operation duration of the first refrigeration control mode does not reach the first duration threshold, it may be determined that the rapid cooling process does not reach the preset rapid cooling effect, and the first refrigeration control mode may be continuously operated.
In addition, as shown in fig. 6, fig. 6 is a specific flowchart further included after step S410 in fig. 4 or after step S520 in fig. 5, and in the example of fig. 6, step S610 is further included but not limited to after step S410 or step S520.
And step S610, controlling the air conditioner to operate in a first cold accumulation control mode, wherein in the first cold accumulation control mode, the third electromagnetic valve is in an open state, the fourth electromagnetic valve is in a closed state, and a refrigerant output by the indoor heat exchanger flows through the cold accumulation module through the third refrigerant pipeline to absorb heat of the cold accumulation module and then is input into the compressor.
It should be noted that, as shown in fig. 1, the compressor is connected to the third refrigerant pipeline and the fourth refrigerant pipeline at the same time, after the fourth electromagnetic valve is closed and the third electromagnetic valve is opened, the high-temperature refrigerant output by the indoor heat exchanger is input to the cold accumulation module through the third refrigerant pipeline, and the high-temperature refrigerant before compression is used as a cold source of the cold accumulation module, so that the heat is released to the high-temperature refrigerant through the phase change effect in the phase change cold accumulation material, the temperature of the phase change cold accumulation material is reduced through the heat release, and the cold accumulation is realized; meanwhile, the high-temperature refrigerant absorbing heat enters the compressor to be compressed, and the cold storage of the cold storage module can be realized by utilizing the refrigerant circulation of the air conditioner through operating the first cold storage control mode.
It should be noted that, although second refrigerant pipeline and third refrigerant pipeline all are connected with the cold-storage module, because the microchannel heat exchanger who connects is different, consequently can realize different energy release, the cold volume of cold-storage module releases the low temperature refrigerant of second refrigerant pipeline input, and simultaneously, the heat of cold-storage module releases the high temperature refrigerant of third refrigerant pipeline input, and specific phase transition heat transfer process is the technique that technical staff in this field can know, does not do more here and describe.
It is to be noted that, referring to the description of the above embodiment, in the first refrigeration control mode, the refrigerant needs to absorb the cooling capacity of the cold storage module from the cold storage module, so if the first cold storage control mode is operated in the first refrigeration control mode to provide the cooling capacity for the cold storage module, it is difficult to ensure that the cooling capacity of the cold storage module is sufficient, and the control is too complicated, so the first cold storage control mode can be operated in the operation process of the second refrigeration control mode, and the cooling capacity is stored in the cold storage module in advance before the first refrigeration control mode is operated next time, so as to ensure that the cooling capacity is stored in the cold storage module when the first refrigeration control mode is operated.
In addition, as shown in fig. 7, fig. 7 is a specific flowchart of step S610 in fig. 6, and in the example of fig. 7, step S610 further includes, but is not limited to, step S710 to step S720.
Step S710, acquiring the suction temperature of the compressor;
and S720, when the air suction temperature is less than a preset second temperature threshold value, controlling the air conditioner to operate in a first cold storage control mode.
As can be known by those skilled in the art, the suction temperature of the compressor is the temperature of the refrigerant at the input end of the compressor, and can be collected by setting a temperature sensor in the compressor, which is not described herein.
It should be noted that, referring to the description of the above embodiment, the cold storage module realizes cold storage by releasing heat to a high temperature refrigerant, the temperature of the high temperature refrigerant has a certain influence on the heat release efficiency of the cold storage module, the lower the temperature of the high temperature refrigerant, the higher the heat release efficiency of the cold storage module, and in case of the high temperature refrigerant being too high, not only the burden of the compressor is increased, but also the temperature of the refrigerant output by the compressor is affected, based on this, the second temperature threshold is set in this embodiment, by comparing the suction temperature with the second temperature threshold, when the suction temperature is less than the second temperature threshold, the temperature of the high temperature refrigerant entering the compressor is lower, so as to realize better heat suction effect in the cold storage module, it can be understood that the second temperature threshold can be adjusted according to actual requirements, for example, determined by the specific working parameters of the compressor and the outdoor heat exchanger, the cold storage module can represent that the high-temperature refrigerant has enough cold energy to absorb heat.
In addition, as shown in fig. 8, fig. 8 is a specific flowchart further included after step S710 in fig. 7, and in the example of fig. 8, step S710 further includes, but is not limited to, step S810.
And step S810, when the air suction temperature is greater than or equal to a second temperature threshold value, controlling the air conditioner to operate in a second cold accumulation control mode, wherein in the second cold accumulation control mode, the third electromagnetic valve is in a closed state, the fourth electromagnetic valve is in an open state, and the refrigerant output by the indoor heat exchanger is input into the compressor through a fourth refrigerant pipeline.
It should be noted that, with reference to the description of the above embodiment, after the first refrigeration control mode is operated, although rapid cooling is achieved, a certain difference may exist between the indoor temperature and the refrigeration temperature set by the user, the air conditioner is also in the high-load refrigeration state in the second refrigeration control mode, at this time, the temperature of the high-temperature refrigerant output by the indoor heat exchanger is high, and the air suction temperature is easily greater than or equal to the second temperature threshold value, in this case, even if the high-temperature refrigerant is input to the cold storage module for heat exchange, the heat exchange efficiency is low, in most use scenes, the air conditioner is operated for a certain time after reaching the set refrigeration temperature, and at this time, the second refrigeration control mode is operated, and the cold storage module does not need to be used for secondary supercooling of the refrigerant, so that the air conditioner can be controlled to operate in the second cold storage control mode, the third electromagnetic valve is closed to block the high-temperature from entering the cold storage module, but directly enters the compressor through a fourth refrigerant pipeline to carry out the subsequent flow.
It should be noted that, under the second refrigeration control mode and the second cold accumulation control mode, the air conditioner is in a conventional refrigeration process, a high-temperature refrigerant output by the indoor heat exchanger enters the compressor through the fourth refrigerant pipeline, the compressed refrigerant is input into the outdoor heat exchanger for heat exchange, and an obtained low-temperature refrigerant enters the indoor heat exchanger through the first refrigerant pipeline for refrigeration.
In addition, as shown in fig. 9, fig. 9 is a specific flowchart further included after step S810 in fig. 8, and in the example of fig. 9, step S810 further includes, but is not limited to, step S910 to step S930.
Step S910, acquiring a preset second time length threshold;
step S920, when the operation time of the second cold accumulation control mode is equal to the second time threshold, the air suction temperature of the compressor is obtained again;
and step S930, when the retrieved suction temperature of the compressor is less than the second temperature threshold, controlling the air conditioner to operate the first cold storage control mode.
It can be understood that, in the operation process of the second cold accumulation control mode, along with the reduction of the indoor temperature, the air suction temperature can be gradually reduced, therefore, the set second time length threshold value can be used as the acquisition period of the air suction temperature, in the process of operating the second cold accumulation control mode, the air suction temperature is acquired once every time length corresponding to one second time length threshold value is spaced, and is compared with the second temperature threshold value, when the air suction temperature is detected to be smaller than the second temperature threshold value, the first cold accumulation control mode is operated to store cold energy, so that the cold energy is stored in advance for the next operation of the first refrigeration control mode under the condition that the refrigeration load of the air conditioner is lower, and the energy release efficiency of the cold accumulation module is improved.
It should be noted that, the specific value of the second duration threshold may be set according to actual requirements, which is not limited in this embodiment.
In addition, as shown in fig. 10, fig. 10 is a specific flowchart further included after step S810 in fig. 8, and in the example of fig. 10, step S810 further includes, but is not limited to, step S1010 to step S1020.
Step S1010, acquiring a preset third duration threshold;
and step S1020, when the operation time of the first cold accumulation control mode is greater than or equal to a third time threshold value, controlling the air conditioner to operate a second cold accumulation control mode, wherein in the second cold accumulation control mode, the third electromagnetic valve is in a closed state, the fourth electromagnetic valve is in an open state, and the refrigerant output by the indoor heat exchanger is input into the compressor through a fourth refrigerant pipeline.
It should be noted that, according to the description of the embodiment shown in fig. 5, the operation duration of the first refrigeration control mode is the first time threshold, the third time threshold may be preset, on the premise that the air suction temperature is less than the second temperature threshold, the operation duration of the first cold storage control mode is timed, and when the operation duration of the first cold storage control mode is equal to the third time threshold, it may be determined that the heat release of the cold storage module is sufficient, and the cold stored in the cold storage module is sufficient to maintain the operation of the first refrigeration control mode, and at this time, it is not necessary to add cold to the cold storage module, and the air conditioner may be controlled to operate the second cold storage control mode.
It can be understood that the specific value of the third time length threshold may be adjusted according to an actual requirement, for example, determined according to the maximum cooling capacity and the maximum heat release efficiency that can be stored by the cold storage module, or determined according to the first time length threshold to determine the cooling capacity required by executing the first refrigeration control model once, which is not limited in this embodiment.
In addition, as shown in fig. 11, fig. 11 is a specific flowchart further included after step S210 in fig. 2, and in the example of fig. 11, step S1110 is further included after step S210, but is not limited to this.
Step S1110, controlling the air conditioner to operate in a second cold accumulation control mode, where in the second cold accumulation control mode, the third electromagnetic valve is in a closed state, the fourth electromagnetic valve is in an open state, and the refrigerant output by the indoor heat exchanger is input to the compressor through a fourth refrigerant pipeline.
It should be noted that, in the operation process of the first refrigeration control mode, the refrigerant does not enter into the normal circulation yet, the circulation path of the refrigerant is increased by operating the first cold accumulation control mode, on the contrary, the process of the refrigerant entering into the refrigeration circulation is slowed down, and according to the description of the above embodiment, the cold accumulation module stores enough cold energy in advance, under the condition, the second cold accumulation control mode can be operated, the third electromagnetic valve is closed and the fourth electromagnetic valve is opened, so that the high-temperature refrigerant output by the indoor heat exchanger enters the compressor through the fourth refrigerant pipeline, and the efficiency of the refrigerant entering into the normal refrigeration circulation is accelerated.
In addition, as shown in fig. 12, fig. 12 is a specific flowchart further included after step S210 in fig. 2, and in the example of fig. 12, step S1210 is further included after step S210, but is not limited thereto.
Step 1210, adjusting the rotation speed of the outdoor fan to a preset rotation speed.
It should be noted that, under the condition that the indoor temperature is relatively high, the temperature of the high-temperature refrigerant output by the indoor heat exchanger is relatively high, so that the preset rotating speed of the outdoor fan can be set to be the maximum rotating speed, the heat exchange effect of the outdoor heat exchanger is increased by increasing the rotating speed, and the preset rotating speed can be adjusted according to actual requirements.
To better illustrate the technical solution of the embodiment of the present invention, a specific example is provided below in conjunction with the structure of the air conditioner shown in fig. 1, and referring to fig. 13, in this specific example, the first temperature threshold is taken as D, the second temperature threshold is taken as a, the first duration threshold is taken as E1, the second duration threshold is taken as B, the third duration threshold is taken as C1,
including but not limited to the following steps:
step S1310, when the air conditioner is in the second cooling control mode, determining whether the suction temperature T1 is less than or equal to a second temperature threshold a, if yes, performing step S1320, otherwise, performing step S1310 again after an interval B;
step S1320, opening the first electromagnetic valve and the third electromagnetic valve, closing the second electromagnetic valve and the fourth electromagnetic valve, operating the second cold accumulation control mode, recording the duration C of the first cold accumulation control mode, judging whether the duration C is greater than or equal to a third duration threshold C1, if so, executing step S1330, otherwise, executing step S1320;
step S1330, opening the first electromagnetic valve and the fourth electromagnetic valve, closing the second electromagnetic valve and the third electromagnetic valve, operating a second cold accumulation control mode, if the air conditioner is switched from a shutdown state to a refrigeration state after shutdown, and the indoor temperature T2 is greater than or equal to a first temperature threshold value D, executing step S1340, otherwise, ending the control of the air conditioner;
step S1340, raising the outdoor fan to the highest rotating speed, closing the first electromagnetic valve and the third electromagnetic valve, opening the fourth electromagnetic valve and the second electromagnetic valve, switching to a first refrigeration control mode, executing step S1350 if the duration E of the first refrigeration control mode is greater than or equal to a first time-length threshold value E1, and otherwise, continuing to execute step S1340;
and step S1350, the outdoor fan is adjusted to exit the highest rotating speed operation, the second electromagnetic valve and the third electromagnetic valve are closed, the fourth electromagnetic valve and the first electromagnetic valve are opened, the second refrigeration control mode is switched, and the control of the air conditioner is finished.
It should be noted that, in this example, the air conditioner performs the determination in the second refrigeration control mode, if the air suction temperature is less than a, it may be determined that the cooling capacity of the refrigerant output by the indoor heat exchanger is sufficient, the first cold storage mode is operated, the first electromagnetic valve is opened to block the low-temperature refrigerant from entering the cold storage module, then the third electromagnetic valve is opened to allow the high-temperature refrigerant to flow into the cold storage module through the third refrigerant pipeline, so that the cold storage module releases heat through temperature drop and phase change, and the duration time C of the first cold storage mode is recorded, when C is greater than or equal to C1, it may be determined that the heat released by the cold storage module meets the requirement, and the stored cooling capacity is sufficient for the operation of the first refrigeration control mode. After that, the air conditioner starts to execute judgment, when the condition that the refrigeration mode is started after shutdown exists, and further judges whether the indoor temperature T2 is greater than a first temperature threshold value D, if so, the air conditioner can be determined to execute rapid refrigeration, the second electromagnetic valve and the third electromagnetic valve are closed, the first electromagnetic valve and the fourth electromagnetic valve are opened, the first refrigeration control mode and the second cold accumulation control mode are operated, meanwhile, the rotating speed of an outdoor fan is adjusted to be the highest rotating speed, so that low-temperature refrigerant output by the outdoor heat exchanger enters the cold accumulation module through a second refrigerant pipeline, secondary supercooling is realized by absorbing cold energy stored in the process, and the cooled low-temperature refrigerant is input to the indoor heat exchanger, so that the heat exchange effect of the indoor heat exchanger is effectively improved, after the operating duration of the first refrigeration mode meets the first time threshold value E1, the indoor temperature is considered to achieve the effect of rapid reduction, and ending the flow. Through the process, enough cold quantity can be stored in the cold accumulation module in advance in the normal refrigeration process, the stored cold quantity is released into the refrigerant when the temperature needs to be rapidly reduced, the unit mass refrigerating capacity of the refrigerant is improved, and the rapid cooling is realized.
As shown in fig. 14, the present invention also provides a control apparatus 1400 of an air conditioner, comprising: at least one control processor 1420 and memory 1410 for communicative connection with the at least one control processor 1420; the memory 1410 stores instructions executable by the at least one control processor 1420, the instructions being executed by the at least one control processor 1420 to enable the at least one control processor 1420 to perform the control method of the air conditioner as described above.
The memory 1410, which is a non-transitory computer readable storage medium, may be used to store a non-transitory software program and a non-transitory computer executable program, such as the control method of the air conditioner in the above-described embodiments of the present invention. The control processor 1420 implements the control method of the air conditioner in the above-described embodiment of the present invention by executing the non-transitory software program and the instructions stored in the memory 1410.
The memory 1410 may include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function; the storage data area may store data and the like required to perform the control method of the air conditioner in the above-described embodiments. Further, the memory 1410 may include high speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. It is noted that the memory 1410 may alternatively comprise memory located remotely from the control processor 1420, and that such remote memory may be coupled to the terminal via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
Non-transitory software programs and instructions required to implement the control method of the air conditioner in the above-described embodiments are stored in a memory, and when executed by one or more processors, perform the control method of the air conditioner in the above-described embodiments, for example, perform the method step S210 in fig. 2, the method steps S310 to S320 in fig. 3, the method step S410 in fig. 4, the method steps S510 to S520 in fig. 5, the method step S610 in fig. 6, the method steps S710 to S720 in fig. 7, the method step S810 in fig. 8, the method steps S910 to S930 in fig. 9, the method step S1010 in fig. 10, the method step S1110 in fig. 11, the method step S1210 in fig. 12, and the method steps S1310 to S1350 in fig. 13 described above.
The present invention also provides a computer-readable storage medium storing computer-executable instructions for causing a computer to perform the control method of an air conditioner as in the above-described embodiments, for example, the method step S210 in fig. 2, the method steps S310 to S320 in fig. 3, the method step S410 in fig. 4, the method steps S510 to S520 in fig. 5, the method step S610 in fig. 6, the method steps S710 to S720 in fig. 7, the method step S810 in fig. 8, the method steps S910 to S930 in fig. 9, the method step S1010 in fig. 10, the method step S1110 in fig. 11, the method step S1210 in fig. 12, and the method steps S1310 to S1350 in fig. 13 described above.
The above-described embodiments of the apparatus are merely illustrative, wherein the units illustrated as separate components may or may not be physically separate, i.e. may be located in one place, or may also be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
One of ordinary skill in the art will appreciate that all or some of the steps, systems, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as is well known to those skilled in the art.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims (14)

1. The control method of the air conditioner is characterized by comprising an indoor heat exchanger and an outdoor heat exchanger, wherein a first refrigerant pipeline and a second refrigerant pipeline are arranged between a refrigerant output end of the outdoor heat exchanger and a refrigerant input end of the indoor heat exchanger and are connected in parallel, the first refrigerant pipeline is provided with a first electromagnetic valve, the second refrigerant pipeline is provided with a second electromagnetic valve and a cold accumulation module with cold energy stored in advance, and the control method of the air conditioner comprises the following steps:
and when the air conditioner is switched to a refrigeration mode, the air conditioner is controlled to operate in a first refrigeration control mode, wherein in the operation process of the first refrigeration control mode, the first electromagnetic valve is in a closed state, the second electromagnetic valve is in an open state, and a refrigerant output by the outdoor heat exchanger flows through the cold accumulation module through the second refrigerant pipeline and absorbs the cold energy of the cold accumulation module and then is input into the indoor heat exchanger.
2. The method as claimed in claim 1, wherein the controlling the air conditioner to operate in a first cooling control mode when the air conditioner is switched to the cooling mode comprises:
when the air conditioner is switched to a refrigeration mode, acquiring the ambient temperature;
and when the ambient temperature is greater than or equal to a preset first temperature threshold value, controlling the air conditioner to operate in the first refrigeration control mode.
3. The control method of an air conditioner according to claim 2, wherein after said obtaining the ambient temperature, the method further comprises:
and when the ambient temperature is lower than the first temperature threshold value, controlling the air conditioner to operate in a second refrigeration control mode, wherein in the operation process of the second refrigeration control mode, the first electromagnetic valve is in an open state, the second electromagnetic valve is in a closed state, and the refrigerant output by the outdoor heat exchanger is input to the indoor heat exchanger through the first refrigerant pipeline.
4. The control method of an air conditioner according to claim 2, wherein after said controlling the air conditioner to operate the first cooling control mode, the method further comprises:
acquiring a preset first time length threshold;
and when the running time of the first refrigeration control mode is greater than or equal to the first time threshold value, controlling the air conditioner to run in a second refrigeration control mode, wherein in the running process of the second refrigeration control mode, the first electromagnetic valve is in an open state, the second electromagnetic valve is in a closed state, and the refrigerant output by the outdoor heat exchanger is input to the indoor heat exchanger through the first refrigerant pipeline.
5. The method as claimed in claim 3 or 4, wherein the air conditioner further includes a compressor, the compressor is connected to the refrigerant input end of the outdoor heat exchanger, a third refrigerant pipeline and a fourth refrigerant pipeline are disposed between the refrigerant output end of the indoor heat exchanger and the compressor, the third refrigerant pipeline and the fourth refrigerant pipeline are connected in parallel, the third refrigerant pipeline is provided with a third solenoid valve and the cold accumulation module, the fourth refrigerant pipeline is provided with a fourth solenoid valve, and after the controlling the air conditioner to operate in the second refrigeration control mode, the method further includes:
and controlling the air conditioner to operate in a first cold accumulation control mode, wherein in the first cold accumulation control mode, the third electromagnetic valve is in an open state, the fourth electromagnetic valve is in a closed state, and a refrigerant output by the indoor heat exchanger flows through the cold accumulation module through the third refrigerant pipeline to absorb heat of the cold accumulation module and then is input into the compressor.
6. The control method of an air conditioner according to claim 5, wherein the controlling the air conditioner to operate in a first cold storage control mode includes:
acquiring the suction temperature of the compressor;
and when the air suction temperature is lower than a preset second temperature threshold value, controlling the air conditioner to operate in the first cold storage control mode.
7. The control method of an air conditioner according to claim 6, wherein after said obtaining of the suction temperature of said compressor, said method further comprises:
and when the air suction temperature is greater than or equal to the second temperature threshold value, controlling the air conditioner to operate in a second cold accumulation control mode, wherein in the second cold accumulation control mode, the third electromagnetic valve is in a closed state, the fourth electromagnetic valve is in an open state, and the refrigerant output by the indoor heat exchanger is input into the compressor through the fourth refrigerant pipeline.
8. The control method of an air conditioner according to claim 7, characterized in that after said controlling the air conditioner to operate the second cold storage control mode, the method further comprises:
acquiring a preset second duration threshold;
when the operation time of the second cold accumulation control mode is equal to the second time threshold, the air suction temperature of the compressor is obtained again;
and when the acquired suction temperature of the compressor is less than the second temperature threshold value, controlling the air conditioner to operate the first cold accumulation control mode.
9. The control method of an air conditioner according to claim 6, characterized in that after said controlling the air conditioner to operate the first cold storage control mode, the method further comprises:
acquiring a preset third duration threshold;
and when the operation time of the first cold accumulation control mode is greater than or equal to the third time threshold value, controlling the air conditioner to operate a second cold accumulation control mode, wherein in the second cold accumulation control mode, the third electromagnetic valve is in a closed state, the fourth electromagnetic valve is in an open state, and the refrigerant output by the indoor heat exchanger is input into the compressor through the fourth refrigerant pipeline.
10. The control method of an air conditioner according to claim 5, wherein after said controlling the air conditioner to operate in the first cooling control mode, the method further comprises:
and controlling the air conditioner to operate in a second cold accumulation control mode, wherein in the second cold accumulation control mode, the third electromagnetic valve is in a closed state, the fourth electromagnetic valve is in an open state, and the refrigerant output by the indoor heat exchanger is input into the compressor through the fourth refrigerant pipeline.
11. The control method of an air conditioner according to claim 1, wherein the air conditioner further includes an outdoor fan, and after the operating the first cooling control mode, the method further includes:
and adjusting the rotating speed of the outdoor fan to a preset rotating speed.
12. A control device of an air conditioner is characterized by comprising at least one control processor and a memory which is in communication connection with the at least one control processor; the memory stores instructions executable by the at least one control processor to enable the at least one control processor to perform the control method of the air conditioner according to any one of claims 1 to 11.
13. An air conditioner characterized by comprising the control device of the air conditioner of claim 12.
14. A computer-readable storage medium storing computer-executable instructions for causing a computer to perform the control method of an air conditioner according to any one of claims 1 to 11.
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CN117299251A (en) * 2023-11-30 2023-12-29 珠海格力电器股份有限公司 Working condition switching method and device for high-low temperature test box and high-low temperature test box

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