CN110542235A - Air conditioner, control method and device thereof, and computer-readable storage medium - Google Patents

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

Info

Publication number
CN110542235A
CN110542235A CN201910867132.7A CN201910867132A CN110542235A CN 110542235 A CN110542235 A CN 110542235A CN 201910867132 A CN201910867132 A CN 201910867132A CN 110542235 A CN110542235 A CN 110542235A
Authority
CN
China
Prior art keywords
sub
bypass pipeline
air conditioner
heat exchanger
controlling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201910867132.7A
Other languages
Chinese (zh)
Other versions
CN110542235B (en
Inventor
朱兴丹
徐振坤
白崇俨
杜顺开
喻广南
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Midea Group Co Ltd
GD Midea Air Conditioning Equipment Co Ltd
Original Assignee
Midea Group Co Ltd
Guangdong Midea Refrigeration Equipment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Midea Group Co Ltd, Guangdong Midea Refrigeration Equipment Co Ltd filed Critical Midea Group Co Ltd
Priority to CN201910867132.7A priority Critical patent/CN110542235B/en
Publication of CN110542235A publication Critical patent/CN110542235A/en
Application granted granted Critical
Publication of CN110542235B publication Critical patent/CN110542235B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • 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
    • F25B13/00—Compression machines, plants or systems, with reversible cycle
    • 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
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/31—Expansion valves
    • 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
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F25B49/022—Compressor control arrangements
    • 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2115—Temperatures of a compressor or the drive means therefor
    • F25B2700/21152—Temperatures of a compressor or the drive means therefor at the discharge side of the compressor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Abstract

The invention provides an air conditioner and a control method thereof, a control device and a computer readable storage medium, wherein a bypass pipeline is connected to two ends of a throttling mechanism in parallel, a first switch device, a liquid storage device and a second switch device are sequentially arranged on the bypass pipeline, the bypass pipeline is divided into a first sub-bypass pipeline and a second sub-bypass pipeline by the liquid storage device, the first sub-bypass pipeline is connected between the second end of an outdoor heat exchanger and the throttling mechanism, the first switch device is arranged on the first sub-bypass pipeline and used for controlling the on-off of the first sub-bypass pipeline, the second sub-bypass pipeline is connected between the second end of the indoor heat exchanger and the throttling mechanism, and the second switch device is arranged on the second sub-bypass pipeline and used for controlling the on-off of the second sub-bypass pipeline; and responding to a shutdown instruction, controlling the first switching device to be opened, maintaining the compressor to continue to operate, and controlling the second switching device and the throttling mechanism to be closed, so that a refrigerant is stored in the liquid storage device after shutdown, and the next startup refrigeration speed is accelerated.

Description

Air conditioner, control method and device thereof, and computer-readable storage medium
Technical Field
The present invention relates to the field of refrigeration equipment, and more particularly, to an air conditioner, a control method thereof, a control device thereof, and a computer-readable storage medium.
Background
When the air conditioner reaches a refrigeration stable operation state, the refrigerant quantity of the outdoor side is relatively large, and the refrigerant quantity of the indoor side is relatively small. Before the air conditioner is started, the outdoor side temperature is high, the refrigerant can migrate to the indoor side with relatively low temperature, the amount of the refrigerant on the indoor side is relatively large, and therefore, the system balance needs to be reestablished for a long time, and the reduction speed of the outlet air temperature of the air conditioner after the air conditioner is started is low. At present, various manufacturers mainly adopt a high-frequency starting or rapid frequency increasing mode of a compressor to increase the refrigeration speed of an air conditioner.
When the compressor is started at a high frequency or is rapidly increased in frequency, the refrigerant on the indoor side is rapidly sucked completely in a short time, the refrigerant on the outdoor side cannot be completely liquefied in a short time, and an effective liquid seal is difficult to form at the throttling mechanism, so that the refrigerant flow passing through the throttling mechanism is greatly reduced, the refrigerant cannot be timely supplemented to the indoor heat exchanger, and the refrigerating speed of the air conditioner is influenced.
Disclosure of Invention
the present invention is directed to solving at least one of the problems of the prior art.
to this end, a first aspect of the present invention is directed to an air conditioner.
A second aspect of the invention aims to provide a control method.
A third aspect of the present invention is directed to a control apparatus.
a fourth aspect of the present invention is directed to an air conditioner.
A fifth aspect of the present invention is directed to a computer-readable storage medium.
To achieve the above object, a first aspect of the present invention provides an air conditioner, comprising: a compressor having an exhaust port and an intake port; the reversing component is provided with first to fourth ports, the first port is connected with the exhaust port, and the third port is connected with the suction port; the first end of the outdoor heat exchanger is connected with the second port, and the first end of the indoor heat exchanger is connected with the fourth port; a throttling mechanism connected in series between the second end of the outdoor heat exchanger and the second end of the indoor heat exchanger; the bypass pipeline is connected to two ends of the throttling mechanism in parallel, a first switch device, a liquid storage device and a second switch device are sequentially arranged on the bypass pipeline, the bypass pipeline is divided into a first sub bypass pipeline and a second sub bypass pipeline by the liquid storage device, the first sub bypass pipeline is connected between the second end of the outdoor heat exchanger and the throttling mechanism, the first switch device is arranged on the first sub bypass pipeline and used for controlling the on-off of the first sub bypass pipeline, the second sub bypass pipeline is connected between the second end of the indoor heat exchanger and the throttling mechanism, and the second switch device is arranged on the second sub bypass pipeline and used for controlling the on-off of the second sub bypass pipeline; and in response to a shutdown instruction, controlling the first switching device to be opened, maintaining the compressor to continue to operate, and controlling the second switching device and the throttling mechanism to be closed so as to enable the first sub-bypass pipeline to be connected and the second sub-bypass pipeline to be disconnected.
in the air conditioner provided by the technical scheme of the invention, the compressor, the reversing component, the outdoor heat exchanger, the throttling mechanism and the indoor heat exchanger are sequentially connected to form a refrigerant circulation loop, the first switching device, the liquid reservoir and the second switching device are sequentially connected to form a refrigerant flow path on the bypass pipeline along the direction from the second end of the outdoor heat exchanger to the second end of the indoor heat exchanger, and the first switching device, the liquid reservoir and the second switching device are positioned on the bypass pipeline and are connected in parallel with the throttling mechanism.
And responding to a shutdown instruction, controlling the second switching device to be closed so as to disconnect the second sub-bypass pipeline, controlling the first switching device to be opened so as to conduct the first sub-bypass pipeline, continuing to operate the compressor, closing the throttling mechanism, and allowing the refrigerant discharged from the exhaust port of the compressor to flow to the first sub-bypass pipeline through the outdoor heat exchanger and flow into the liquid reservoir, so that the refrigerant is gradually accumulated in the liquid reservoir. When the air conditioner is started to operate next time, the refrigerant accumulated in the liquid reservoir can quickly flow into the indoor heat exchanger, so that the speed of the refrigerant flowing into the indoor heat exchanger is increased, the amount of the refrigerant entering the indoor heat exchanger is increased, the speed of the refrigerant reaching the indoor heat exchanger can be shortened, and the starting and refrigerating speed is accelerated.
In addition, the air conditioner provided by the technical scheme of the invention also has the following additional technical characteristics:
In one embodiment, the first switching device comprises a first bidirectional electromagnetic cut-off valve, a first one-way electromagnetic cut-off valve or a first one-way mechanical valve, wherein the first one-way mechanical valve is configured to conduct in a direction from the second end of the outdoor heat exchanger to the second end of the indoor heat exchanger.
The first bidirectional electromagnetic stop valve, the first one-way electromagnetic stop valve or the first one-way mechanical valve can realize the control of the on-off of the first sub-bypass pipeline, and the control of the first one-way electromagnetic valve or the first one-way mechanical valve is simpler and has lower cost.
in one embodiment, the second switch device comprises a second bidirectional electromagnetic shutoff valve or a second one-way electromagnetic shutoff valve, wherein the second one-way electromagnetic shutoff valve is configured to selectively open or close the second sub-bypass line in the cooling mode.
the second sub-bypass pipeline can be selectively connected or disconnected under the refrigeration mode through the second one-way electromagnetic stop valve, so that the on-off of the second sub-bypass pipeline can be controlled by controlling the opening and closing of the second one-way electromagnetic stop valve.
the first switch device and the second switch device can be a first bidirectional electromagnetic stop valve and a second bidirectional electromagnetic stop valve respectively, can also be a first bidirectional electromagnetic stop valve and a second one-way electromagnetic stop valve respectively, can also be a first one-way electromagnetic stop valve and a second two-way electromagnetic stop valve respectively, can also be a first one-way electromagnetic stop valve and a second one-way electromagnetic stop valve respectively, can also be a first one-way mechanical valve and a second one-way electromagnetic stop valve respectively, further, the first one-way mechanical valve and the second one-way electromagnetic stop valve are arranged in a reverse direction at the moment, and can also be a first one-way mechanical valve and a second two-way electromagnetic stop valve respectively.
in one embodiment, the throttling mechanism comprises a cut-off throttling mechanism which can be cut off.
the cut-off throttling mechanism has a cut-off function, so that the cut-off throttling mechanism can control the on-off of a pipeline (a pipeline connected between the second end of the outdoor heat exchanger and the second end of the indoor heat exchanger) where the cut-off throttling mechanism is located, and a switching device for controlling the on-off of the pipeline where the throttling mechanism is located is not needed, so that the structure of the air conditioner is further simplified, and the cost of the air conditioner is reduced.
in one embodiment, the stop throttle mechanism comprises an electronic expansion valve.
the electronic expansion valve can effectively improve the intelligent level of the air conditioner and improve the control precision of the air conditioner.
In one embodiment, the throttling mechanism includes a throttling mechanism body and a third switching device, which are connected in series, and the third switching device is disposed on a first pipeline between the throttling mechanism body and the second end of the outdoor heat exchanger and is used for controlling the on-off of the first pipeline, or the third switching device is disposed on a second pipeline between the throttling mechanism body and the second end of the indoor heat exchanger and is used for controlling the on-off of the second pipeline.
the throttle mechanism body can have a stop function, and at the moment, the throttle mechanism body can also be used for controlling the on-off of a pipeline (a pipeline connected between the second end of the outdoor heat exchanger and the second end of the indoor heat exchanger) where the throttle mechanism body is located, for example, the throttle mechanism body is an electronic expansion valve; the throttle structure body may not have a cut-off function, for example, the throttle structure body is a capillary tube or a thermal expansion valve.
The combination of the throttling mechanism body and the third switching device realizes the control of the on-off of the pipeline where the throttling mechanism is located, so that a refrigerant can be stored in the liquid storage device when the air conditioner is turned off and the compressor continues to operate, the speed of cold air outlet of the air conditioner is increased when the air conditioner is turned on next time, and the refrigerating speed is increased.
in one embodiment, the third switching device comprises a third one-way electromagnetic shutoff valve or a third two-way electromagnetic shutoff valve, wherein the third one-way electromagnetic shutoff valve is configured to selectively open or close a pipeline in which the third one-way electromagnetic shutoff valve is located in the cooling mode.
the third unidirectional electromagnetic stop valve or the third bidirectional electromagnetic stop valve can control the on-off of the pipeline where the throttling mechanism is located, for example, if the third switching device is located on the first pipeline, the third switching device can control the on-off of the first pipeline, and if the third switching device is located on the second pipeline, the third switching device can control the on-off of the second pipeline.
In one embodiment, the throttle body includes a capillary tube, an electronic expansion valve, or a thermal expansion valve.
The capillary tube and the thermostatic expansion valve have simple structures and low cost, and the electronic expansion valve can effectively improve the intelligent level of the air conditioner and improve the control precision of the air conditioner.
In one embodiment, the air conditioner includes: a water reservoir comprising a housing, the reservoir being located within the housing, the housing being adapted to receive condensate water produced by the indoor heat exchanger.
Condensed water generated in the operation process of the air conditioner enters the shell to be stored, and the temperature of the condensed water is low, so that the condensed water can exchange heat with a refrigerant in the liquid storage device, the temperature of the refrigerant in the liquid storage device is reduced, and the starting refrigeration speed is further accelerated when the air conditioner is started and operated next time.
In one embodiment, the housing comprises a thermal insulation material.
The casing includes insulation material to can realize the heat preservation to the comdenstion water, further strengthen the cooling capacity of comdenstion water to the refrigerant in the reservoir, insulation material can also realize the heat preservation to the reservoir, prevents that the refrigerant temperature in the reservoir from rising.
The thermal insulation material can be organic thermal insulation material (such as foam plastic), inorganic thermal insulation material (such as glass wool) or metal type thermal insulation material.
an aspect of a second aspect of the present invention provides a control method for controlling an air conditioner according to any one of the aspects of the first aspect, the control method including: and responding to a shutdown instruction, controlling the first switching device to be opened, maintaining the compressor to continue to operate, and controlling the second switching device and the throttling mechanism to be closed so as to enable the first sub-bypass pipeline to be conducted and the second sub-bypass pipeline to be disconnected.
In the control method provided by the technical scheme of the second aspect of the invention, the second switching device is controlled to be closed in response to the shutdown instruction so as to disconnect the second sub-bypass pipeline, the first switching device is controlled to be opened so as to conduct the first sub-bypass pipeline, the compressor continues to operate, the throttling mechanism is closed, the refrigerant discharged from the exhaust port of the compressor flows to the first sub-bypass pipeline through the outdoor heat exchanger and flows into the liquid accumulator, and therefore the refrigerant is gradually accumulated in the liquid accumulator. When the air conditioner is started to operate next time, the refrigerant accumulated in the liquid reservoir can quickly flow into the indoor heat exchanger, so that the speed of the refrigerant flowing into the indoor heat exchanger is increased, the amount of the refrigerant entering the indoor heat exchanger is increased, the speed of the refrigerant reaching the indoor heat exchanger can be shortened, and the starting and refrigerating speed is accelerated.
in one embodiment, after the controlling the first switching device to be turned on and the compressor to continue to operate and the controlling the second switching device and the throttle mechanism to be turned off in response to the shutdown instruction, the method includes: detecting working condition parameters of the air conditioner; and the working condition parameters of the air conditioner meet a first preset condition, the compressor is controlled to stop running, and the first switching device is controlled to be closed, so that the first sub-bypass pipeline is disconnected.
The working condition parameters of the air conditioner are detected, whether the working condition parameters meet first preset conditions or not is judged, and when the working condition parameters meet the first preset conditions, the first switching device is controlled to be turned off, so that the first sub-bypass pipeline is disconnected, the compressor is controlled to stop running, the refrigerant is stored in the liquid storage device, and the refrigerant is prevented from flowing to the outdoor heat exchanger from the liquid storage device through the first sub-bypass pipeline. The refrigerant stored in the liquid storage device can accelerate the refrigerating speed of the air conditioner when the air conditioner is started next time.
in one embodiment, the operating condition parameter of the air conditioner satisfies a first preset condition, and specifically includes: any one of the continuous operation time of the compressor is longer than a first preset time, the suction pressure of the compressor is lower than a first preset pressure, and the suction temperature of the compressor is lower than a first preset temperature.
The operating condition parameters include the length of time the compressor continues to operate, the suction pressure of the compressor, which refers to the pressure at the suction port of the compressor, or the suction temperature of the compressor, which refers to the temperature at the suction port of the compressor. When the working condition parameters meet the first preset condition, the compressor is controlled to stop running in time, so that a proper amount of refrigerant is stored in the liquid storage device, and the problem that the energy consumption of the air conditioner is high due to long-term running of the compressor can be avoided.
in one embodiment, the range of the first preset duration is 10s to 120s, which not only can ensure that a proper amount of refrigerant is stored in the liquid accumulator, but also can avoid the high energy consumption of the air conditioner caused by the long-term operation of the compressor and the damage of the compressor caused by the long-term idle running of the compressor, the range of the first preset pressure is 0MPa to 0.6MPa (absolute pressure), so that a proper amount of refrigerant is stored in the liquid accumulator, the range of the first preset temperature is-30 ℃ to 0 ℃, so that a proper amount of refrigerant is stored in the liquid accumulator, and the high energy consumption of the air conditioner caused by the long-term operation of the compressor and the damage of the compressor caused by the long-term idle running of the.
In one embodiment, the control method includes: and responding to a starting instruction of a refrigeration mode, and controlling the second switching device and the throttling mechanism to be opened so as to conduct the second sub-bypass pipeline.
and responding to the starting instruction of the refrigeration mode, starting the air conditioner to operate, and operating in the refrigeration mode. In order to ensure the normal circulation of the refrigerant, the throttle mechanism is controlled to be opened, so that the first pipeline is conducted, the second pipeline is conducted, and the refrigerant flowing out of the exhaust port of the compressor passes through the outdoor heat exchanger, the throttle mechanism and the indoor heat exchanger to realize normal refrigeration circulation. And the second switching device is controlled to be switched on, the second sub-bypass pipeline is conducted, and the refrigerant accumulated in the liquid accumulator flows to the indoor heat exchanger through the second sub-bypass pipeline, so that the amount of the refrigerant flowing to the indoor heat exchanger is increased, and the starting and refrigerating speed is accelerated.
In one embodiment, after the controlling the second switch device and the throttle mechanism to be opened in response to the cooling mode power-on command, the method includes: detecting the pressure of a refrigerant in the liquid accumulator; and controlling the second switching device to be closed when the pressure of the refrigerant is lower than a second preset pressure so as to disconnect the second sub-bypass pipeline.
When the pressure of the refrigerant in the liquid accumulator is lower than a second preset pressure, the refrigerant in the liquid accumulator hardly flows to the indoor heat exchanger through the second sub-bypass pipeline, and the second switching device is controlled to be closed at the moment. The second preset pressure may be a pressure of the refrigerant at the outlet of the throttling mechanism, that is, a pressure of the throttled refrigerant.
in one embodiment, the second preset pressure is in a range of 0.4MPa to 1.0MPa (absolute pressure), so that the refrigerant in the accumulator can sufficiently flow out of the accumulator to the indoor heat exchanger.
In one embodiment, the responding to the cooling mode power-on command controls the second switch device and the throttle mechanism to be opened, and the method further includes: controlling the first switching device to be turned on; and after a second preset time, controlling the first switch device to be closed and maintaining the second switch device to be opened.
And responding to a starting refrigeration mode instruction, controlling the first switching device to be opened so as to enable the first sub-bypass pipeline to be conducted, dividing the refrigerant flowing out of the exhaust port of the compressor into two paths after passing through the outdoor heat exchanger, wherein one path flows to the throttling mechanism through the first pipeline and flows to the indoor heat exchanger through the second pipeline, and the other path flows to the indoor heat exchanger through the first sub-bypass pipeline, the liquid storage device and the second sub-bypass pipeline.
the first switching device is controlled to be turned on, so that the refrigerant can flow into the liquid accumulator from the first sub-bypass pipeline, and more refrigerant in the liquid accumulator can flow to the indoor heat exchanger through the second sub-bypass pipeline.
In one embodiment, the second preset duration ranges from 1min to 30min, so that more refrigerants in the liquid reservoir can flow to the indoor heat exchanger through the second sub-bypass pipeline.
In one embodiment, the control method includes: and the working condition parameters of the air conditioner meet a second preset condition, and the condensed water in the water storage device is discharged.
The condensed water in the water receiver is discharged or replaced regularly, so that the temperature and the water quantity of the condensed water in the water receiver are kept in a proper range, and the condensed water in the water receiver is ensured to have a good cooling and heat-preserving effect on a refrigerant in the water receiver all the time.
in one embodiment, the second preset condition includes: any one of a time period exceeding a third preset time period from the last discharge time, an amount of condensed water in the water reservoir reaching a preset amount of water, and a temperature of the condensed water in the water reservoir exceeding a second preset temperature.
When any one of the conditions that the last discharge time exceeds a second preset duration, the condensed water amount in the water receiver reaches a preset water amount, and the temperature of the condensed water in the water receiver exceeds a second preset temperature is met, the condensed water in the water receiver is discharged, on one hand, the temperature of the condensed water is guaranteed not to be too high, and the cooling effect on a refrigerant is lost, on the other hand, the condensed water amount in the water receiver is prevented from being too large, and the condensed water is caused to overflow from the water receiver.
An aspect of the third aspect of the present invention provides a control device, including a processor and a memory, where the processor is configured to implement the steps of the control method according to any one of the first aspect of the present invention when executing the computer program stored in the memory.
An aspect of the fourth aspect of the present invention provides an air conditioner including the control device according to the third aspect.
An aspect of the fifth aspect of the present invention provides a computer-readable storage medium on which a computer program (instructions) is stored, the computer program (instructions), when executed by a processor, implementing the steps of the control method according to any one of the aspects of the second aspect.
additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
the above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of an air conditioner according to a first embodiment of the present invention;
Fig. 2 is a schematic structural diagram of an air conditioner according to a second embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a throttle mechanism according to a third embodiment of the present invention;
FIG. 4 is a flow chart illustrating a control method according to an embodiment of the present invention;
FIG. 5 is a flow chart of a control method according to a fourth embodiment of the present invention;
FIG. 6 is a flow chart of a control method according to a fourth embodiment of the present invention;
Fig. 7 is a schematic flow chart of a control method according to a fifth embodiment of the present invention;
Fig. 8 is a schematic block diagram of a control device according to an embodiment of the present invention.
Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 8 is:
The air conditioner comprises a compressor, an exhaust port 11, a suction port 12, a reversing component 2, an outdoor heat exchanger 3, an outdoor fan 4, a throttling mechanism 5, a throttling mechanism body 51, a third switching device 52, a liquid storage device 6, a water storage device 7, a shell 71, a first switching device 8, a condensed water pipe 9, an indoor heat exchanger 10, an indoor fan 20, a first pipeline 30, a second pipeline 40, a bypass pipeline 50, a first sub-bypass pipeline 502, a second sub-bypass pipeline 504, a second switching device 60, a control device 200, a processor 202 and a memory 204.
Detailed Description
in order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.
An air conditioner, a control method thereof, a control apparatus thereof, and a computer-readable storage medium according to some embodiments of the present invention are described below with reference to fig. 1 to 8 of the accompanying drawings.
As shown in fig. 1, an air conditioner according to some embodiments of the present invention includes a compressor 1, a reversing assembly 2, an outdoor fan 4, an outdoor heat exchanger 3, an indoor fan 20, an indoor heat exchanger 10, a first switching device 8, an accumulator 6, and a second switching device 60.
The compressor 1 has a discharge port 11 and a suction port 12.
The reversing assembly 2 has first to fourth ports, the first port being connected to the exhaust port 11, the third port being connected to the suction port 12, the second port being connected to the first end of the outdoor heat exchanger 3, and the fourth port being connected to the first end of the indoor heat exchanger 10.
The throttling mechanism 5 is connected in series between the second end of the outdoor heat exchanger 3 and the second end of the indoor heat exchanger 10.
the bypass pipeline 50 is connected to two ends of the throttling mechanism 5 in parallel, a first switch device 8, a liquid storage device 6 and a second switch device 60 are sequentially arranged on the bypass pipeline 50, the bypass pipeline 50 is divided into a first sub-bypass pipeline 502 and a second sub-bypass pipeline 504 by the liquid storage device 6, the first sub-bypass pipeline 502 is connected between the second end of the outdoor heat exchanger 3 and the throttling mechanism 5, the first switch device 8 is arranged on the first sub-bypass pipeline 502 and used for controlling the on-off of the first sub-bypass pipeline 502, the second sub-bypass pipeline 504 is connected between the second end of the indoor heat exchanger 10 and the throttling mechanism 5, and the second switch device 60 is arranged on the second sub-bypass pipeline 504 and used for controlling the on-off of the second sub-bypass pipeline 504; in response to the shutdown instruction, the first switching device 8 is controlled to be opened, the compressor 1 is maintained to continue to operate, and the second switching device 60 and the throttling mechanism 5 are controlled to be closed, so that the first sub-bypass pipeline 502 is connected, and the second sub-bypass pipeline 504 is disconnected.
in the air conditioner provided by the above embodiment of the present invention, the compressor 1, the reversing component 2, the outdoor heat exchanger 3, the throttling mechanism 5, and the indoor heat exchanger 10 are sequentially connected to form a refrigerant circulation loop, the first switching device 8, the reservoir 6, and the second switching device 60 are sequentially connected to form a refrigerant flow path on the bypass pipeline 50 along a direction from the second end of the outdoor heat exchanger 3 to the second end of the indoor heat exchanger 10, and the first switching device 8, the reservoir 6, and the second switching device 60 are located on the bypass pipeline 50 and are connected in parallel with the throttling mechanism 5.
In response to the shutdown instruction, the second switching device 60 is controlled to be closed to disconnect the second sub-bypass line 504, the first switching device 8 is controlled to be opened to connect the first sub-bypass line 502, the compressor 1 continues to operate, the throttling mechanism 5 is closed, the refrigerant discharged from the discharge port 11 of the compressor 1 flows to the first sub-bypass line 502 through the outdoor heat exchanger 3 and flows into the accumulator 6, and the refrigerant is gradually accumulated in the accumulator 6. When the air conditioner is started to operate next time, the refrigerant accumulated in the liquid reservoir 6 can quickly flow into the indoor heat exchanger 10, so that the speed of the refrigerant flowing into the indoor heat exchanger 10 is increased, the amount of the refrigerant entering the indoor heat exchanger 10 is increased, the speed of the refrigerant reaching the indoor heat exchanger 10 can be shortened, and the starting and refrigerating speed is accelerated.
The first embodiment is as follows:
as shown in fig. 1, the throttle means 5 includes a shut-off throttle means 5 that can be shut off, such as an electronic expansion valve.
The stopping throttle mechanism 5 has a stopping function, so that the stopping throttle mechanism 5 can control the on-off of a pipeline (a pipeline connected between the second end of the outdoor heat exchanger 3 and the second end of the indoor heat exchanger 10) where the stopping throttle mechanism is positioned, and a switch device for controlling the on-off of the pipeline where the throttle mechanism 5 is positioned is not needed to be arranged, so that the structure of the air conditioner is further simplified, and the cost of the air conditioner is reduced.
The electronic expansion valve can effectively improve the intelligent level of the air conditioner and improve the control precision of the air conditioner.
The first switching device 8 includes a first bidirectional electromagnetic cut-off valve, a first one-way electromagnetic cut-off valve, or a first one-way mechanical valve, wherein the first one-way mechanical valve is configured to be conducted in a direction from the second end of the outdoor heat exchanger 3 to the second end of the indoor heat exchanger 10.
The first bidirectional electromagnetic stop valve, the first one-way electromagnetic stop valve or the first one-way mechanical valve can control the on-off of the first sub-bypass pipeline 502, and the control of the first one-way electromagnetic valve or the first one-way mechanical valve is simpler and lower in cost.
further, the second switching device 60 includes a second two-way electromagnetic shutoff valve or a second one-way electromagnetic shutoff valve, wherein the second one-way electromagnetic shutoff valve is configured to selectively open or close the second sub-bypass line 504 in the cooling mode.
The second sub-bypass pipeline 504 can be selectively connected or disconnected through the second one-way electromagnetic stop valve in the refrigeration mode, so that the on-off of the second sub-bypass pipeline 504 can be controlled through controlling the opening and closing of the second one-way electromagnetic stop valve.
The first switch device 8 and the second switch device 60 may be a first bidirectional electromagnetic cut-off valve and a second bidirectional electromagnetic cut-off valve, may also be a first bidirectional electromagnetic cut-off valve and a second unidirectional electromagnetic cut-off valve, may also be a first unidirectional electromagnetic cut-off valve and a second bidirectional electromagnetic cut-off valve, may also be a first unidirectional electromagnetic cut-off valve and a second unidirectional electromagnetic cut-off valve, may also be a first unidirectional mechanical valve and a second unidirectional electromagnetic cut-off valve, further, at this time, the first unidirectional mechanical valve and the second unidirectional electromagnetic cut-off valve are arranged in reverse, may also be a first unidirectional mechanical valve and a second bidirectional electromagnetic cut-off valve, respectively.
Example two:
As shown in fig. 2, in the first embodiment, the air conditioner includes: the water reservoir 7, the water reservoir 7 includes a housing 71, the reservoir 6 is located in the housing 71, and the housing 71 is used for receiving the condensed water generated by the indoor heat exchanger 10. Further, the housing 71 includes a thermal insulation material.
the liquid storage device with the liquid storage function, the first switch device and the second switch device are connected in parallel at the throttling mechanism to store part of the refrigerant in advance, and condensed water generated by the shell storage indoor heat exchanger is used for cooling the refrigerant stored in advance, so that the refrigerant quantity entering the indoor side is increased when the refrigerator is started, the temperature of the refrigerant is reduced, and quick refrigeration is further facilitated. Specifically, during the operation of the cooling mode, the indoor heat exchanger 10 generates condensed water, the generated condensed water enters the shell 71 to be stored, and the temperature of the condensed water is low, so that the condensed water can exchange heat with a refrigerant in the liquid accumulator 6, and the temperature of the refrigerant in the liquid accumulator 6 is reduced, and the starting and cooling speed is further increased when the refrigerator is started next time.
The water reservoir 7 and the indoor heat exchanger 10 may be connected by a condensate pipe 9, and the condensate water generated by the indoor heat exchanger 10 flows into the case 71 through the condensate pipe 9. It is also possible that the water reservoir 7 is provided in correspondence with the indoor heat exchanger 10, for example, below the indoor heat exchanger 10, and the condensed water drops into the water reservoir 7 by its own weight.
Casing 71 includes insulation material to can realize the heat preservation to the comdenstion water, further strengthen the cooling capacity of comdenstion water to the refrigerant in the reservoir 6, insulation material can also realize the heat preservation to reservoir 6, prevents that the refrigerant temperature in the reservoir 6 from rising.
The thermal insulation material can be organic thermal insulation material (such as foam plastic), inorganic thermal insulation material (such as glass wool) or metal type thermal insulation material.
Example three:
As shown in fig. 3, the difference from the first and second embodiments is that the throttle mechanism 5 includes a throttle mechanism body 51 and a third switching device 52 connected in series, and the third switching device 52 is disposed on the first pipeline 30 between the throttle mechanism body 51 and the second end of the outdoor heat exchanger 3 and is used for controlling the on/off of the first pipeline 30, or the third switching device 52 is disposed on the second pipeline 40 between the throttle mechanism body 51 and the second end of the indoor heat exchanger 10 and is used for controlling the on/off of the second pipeline 40.
The throttle mechanism body 51 may have a cut-off function, and at this time, the throttle mechanism body 51 may also be used to control on/off of a pipeline (a pipeline connected between the second end of the outdoor heat exchanger 3 and the second end of the indoor heat exchanger 10) where the throttle mechanism body 51 is located, for example, the throttle mechanism body 51 is an electronic expansion valve, so if it is necessary to control the pipeline where the throttle mechanism 5 is located to be conducted, it is necessary to simultaneously control the third switching device 52 and the throttle mechanism body 51 to be opened; the throttle structure body may not have a cut-off function, for example, the throttle structure body is a capillary tube or a thermal expansion valve.
The on-off control of the pipeline where the throttling mechanism 5 is located is realized through the combination of the throttling mechanism body 51 and the third switching device 52, so that a refrigerant can be stored in the liquid storage device 6 when the air conditioner is turned off and the compressor 1 continues to operate, the speed of cold air outlet of the air conditioner is increased when the air conditioner is turned on next time, and the refrigerating speed is increased.
In one embodiment, the third switching device 52 includes a third one-way electromagnetic shutoff valve or a third two-way electromagnetic shutoff valve, wherein the third one-way electromagnetic shutoff valve is configured to selectively open or close the pipeline in the cooling mode.
The on-off control of the pipeline in which the throttling mechanism 5 is located can be realized by a third one-way electromagnetic stop valve or a third two-way electromagnetic stop valve, for example, if the third switching device 52 is located on the first pipeline 30, the on-off control of the first pipeline 30 is realized by the third switching device 52, and if the third switching device 52 is located on the second pipeline 40, the on-off control of the second pipeline 40 is realized by the third switching device 52.
In the case where the throttle mechanism body 51 has the cut-off function, the third switching device 52 includes a third one-way electromagnetic cut-off valve, a third two-way electromagnetic cut-off valve, or a third one-way mechanical valve, wherein the third one-way mechanical valve is turned on in a direction from the second end of the outdoor heat exchanger 3 to the second end of the indoor heat exchanger 10.
In one embodiment, the throttle body 51 includes a capillary tube, an electronic expansion valve, or a thermal expansion valve.
The capillary tube and the thermostatic expansion valve have simple structures and low cost, and the electronic expansion valve can effectively improve the intelligent level of the air conditioner and improve the control precision of the air conditioner.
An embodiment of a second aspect of the present invention provides a control method for controlling an air conditioner as in any one of the embodiments of the first aspect, as shown in fig. 4, the control method including:
in step S30, in response to the shutdown instruction, the first switching device 8 is controlled to be opened to maintain the compressor 1 to continue to operate, and the second switching device 60 and the throttling mechanism 5 are controlled to be closed, so that the first sub-bypass pipeline 502 is connected and the second sub-bypass pipeline 504 is disconnected.
corresponding to the air conditioner of the first embodiment, the second aspect of the present invention provides a control method, in response to the shutdown instruction, controlling the second switch device 60 to close, so as to disconnect the second sub-bypass pipe 504, controlling the first switch device 8 to open, so as to conduct the first sub-bypass pipe 502, and continuing to operate the compressor 1, closing the throttling mechanism 5, and allowing the refrigerant discharged from the exhaust port 11 of the compressor 1 to flow to the first sub-bypass pipe 502 through the outdoor heat exchanger 3 and flow into the accumulator 6, so that the refrigerant is gradually accumulated in the accumulator 6. When the air conditioner is started to operate next time, the refrigerant accumulated in the liquid reservoir 6 can quickly flow into the indoor heat exchanger 10, so that the speed of the refrigerant flowing into the indoor heat exchanger 10 is increased, the amount of the refrigerant entering the indoor heat exchanger 10 is increased, the speed of the refrigerant reaching the indoor heat exchanger 10 can be shortened, and the starting and refrigerating speed is accelerated.
Example four:
The fourth embodiment provides a control method for controlling the air conditioner in the first and third embodiments.
As shown in fig. 5, the control method includes: step S512, in response to the shutdown instruction, controls the first switch device 8 to be turned on, maintains the compressor 1 to continue to operate, and controls the second switch device 60 and the throttling mechanism 5 to be turned off, so that the first sub-bypass pipeline 502 is turned on, and the second sub-bypass pipeline 504 is turned off.
When the throttle mechanism 5 includes the throttle mechanism body 51 and the third switching device 52, the throttle mechanism 5 is controlled to be closed, including controlling the third switching device 52 to be closed, so as to disconnect the first pipeline 30 or the second pipeline 40 where the third switching device 52 is located.
The control method further comprises the following steps:
Step S514, detecting working condition parameters of the air conditioner;
Step S516, judging whether the working condition parameters of the air conditioner meet a first preset condition;
If the working condition parameters of the air conditioner meet the first preset condition, step S518 is executed, the compressor 1 is controlled to stop running, and the first switching device 8 is controlled to be turned off, so that the first sub-bypass pipeline 502 is disconnected;
And if the working condition parameters of the air conditioner do not meet the first preset condition, returning to the step S512.
The working condition parameter of the air conditioner is detected, whether the working condition parameter meets a first preset condition is judged, when the working condition parameter meets the first preset condition, the first switch device 8 is controlled to be closed, the first sub-bypass pipeline 502 is disconnected, the compressor 1 is controlled to stop running, the refrigerant is stored in the liquid storage device 6, the refrigerant is prevented from flowing to the outdoor heat exchanger 3 from the liquid storage device 6 through the first sub-bypass pipeline 502, and the energy consumption of the compressor 1 is increased in vain after the refrigerant amount in the liquid storage device 6 reaches the preset refrigerant amount. The refrigerant stored in the liquid accumulator 6 can accelerate the refrigerating speed of the air conditioner when the air conditioner is started next time.
Further, the working condition parameter of the air conditioner satisfies a first preset condition, and specifically includes: any one of the continuous operation time of the compressor 1 is longer than a first preset time, the suction pressure of the compressor 1 is lower than a first preset pressure, and the suction temperature of the compressor is lower than a first preset temperature.
The operating parameters include the length of time the compressor 1 continues to operate, the suction pressure of the compressor 1, which refers to the pressure at the suction port 12 of the compressor 1, or the suction temperature of the compressor, which refers to the temperature at the suction port of the compressor. When the working condition parameters meet the first preset condition, the compressor 1 is controlled to stop running in time, so that a proper amount of refrigerant is stored in the liquid storage device 6, and the high energy consumption of the air conditioner caused by the long-term running of the compressor 1 can be avoided.
in one embodiment, the first predetermined duration is in a range of 10s to 120 s. The first preset time period may be, but is not limited to, 10s, 40s, 80s, or 120 s.
The range of the first preset time is controlled to be 10 s-120 s, the situation that the stored refrigerant in the liquid storage device 6 is insufficient due to the fact that the first preset time is shorter than 10s is avoided, and the situation that the amount of the refrigerant discharged by the compressor 1 is larger than the capacity of the liquid storage device 6 due to the fact that the first preset time is longer than 120s, the energy consumption of the compressor 1 is high and the compressor is damaged due to the fact that the compressor idles for a long time can also be avoided.
Further, the first preset pressure is in a range of 0MPa to 0.6MPa, so that an appropriate amount of refrigerant is accumulated in the accumulator 6. The first preset pressure may be, but is not limited to, 0MPa, 0.3MPa, or 0.6 MPa.
The first preset temperature is in the range of-30-0 ℃, the compressor is controlled to stop running in time, the damage to the compressor caused by overhigh energy consumption of the compressor and long-term idling of the compressor is avoided, and a proper amount of refrigerant can be stored in the liquid storage device. The first preset temperature may be, but is not limited to, -30 ℃, -20 ℃, -10 ℃ or 0 ℃.
further, the control method comprises the following steps:
In step S502, in response to the cooling mode power-on command, the second switch device 60 and the throttling mechanism 5 are controlled to be turned on, so as to conduct the second sub-bypass pipeline 504. When the throttle mechanism 5 includes the throttle mechanism body 51 and the third switching device 52, the throttle mechanism 5 is controlled to be opened, including controlling the third switching device 52 to be opened, so as to conduct the first and second pipes 30 and 40 between the indoor heat exchanger 10 and the outdoor heat exchanger 3.
And responding to the starting instruction of the refrigeration mode, starting the air conditioner to operate, and operating in the refrigeration mode. In order to ensure the normal circulation of the refrigerant, the throttle mechanism 5 is controlled to be opened, so that the first pipeline 30 is conducted, the second pipeline 40 is conducted, and the refrigerant flowing out of the exhaust port 11 of the compressor 1 passes through the outdoor heat exchanger 3, the throttle mechanism 5 and the indoor heat exchanger 10 to realize the normal refrigeration circulation. The second switching device 60 is controlled to be turned on, the second sub-bypass pipeline 504 is conducted, and the refrigerant accumulated in the liquid reservoir 6 flows to the indoor heat exchanger 10 through the second sub-bypass pipeline 504, so that the amount of the refrigerant flowing to the indoor heat exchanger 10 is increased, and the starting and refrigerating speed is accelerated.
Further, step S502 further includes: the first switching device 8 is controlled to be turned on.
The control method further includes step S504, after a second preset time period t2, controlling the first switch device 8 to be turned off, maintaining the second switch device 60 to be turned on, and maintaining the throttle mechanism 5 to be turned on.
In response to the start-up and refrigeration mode instruction, the first switch device 8 is controlled to be opened to conduct the first sub-bypass pipeline 502, the refrigerant flowing out of the exhaust port 11 of the compressor 1 passes through the outdoor heat exchanger 3 and then is divided into two paths, one path flows to the throttling mechanism 5 through the first pipeline 30 and flows to the indoor heat exchanger 10 through the second pipeline 40, and the other path flows to the indoor heat exchanger 10 through the first sub-bypass pipeline 502, the liquid accumulator 6 and the second sub-bypass pipeline 504.
The first switching device 8 is controlled to be turned on, so that the refrigerant can flow into the accumulator 6 from the first sub-bypass line 502, and thus more refrigerant in the accumulator 6 can flow to the indoor heat exchanger 10 through the second sub-bypass line 504.
Further, the second preset duration is in the range of 1min to 30min, so that the situation that the refrigerant in the liquid reservoir 6 does not fully flow out to the indoor heat exchanger 10 due to the fact that the second preset duration is less than 1min is avoided, the effect of improving the refrigeration starting speed is limited, the situation that the second preset duration is greater than 30min can be avoided, and the energy consumption of the compressor 1 is increased.
Further, the control method further comprises:
Step S506, detecting the pressure of the refrigerant in the liquid accumulator 6;
Step S508, judging whether the pressure of the refrigerant is lower than a second preset pressure;
If the pressure of the refrigerant is lower than the second preset pressure, step S510 is executed to control the second switch device 60 to be closed, so as to disconnect the second sub-bypass line 504;
If the pressure of the refrigerant is higher than or equal to the second predetermined pressure, the process returns to step S506.
When the pressure of the refrigerant in the accumulator 6 is lower than the second preset pressure, the refrigerant in the accumulator 6 hardly flows to the indoor heat exchanger 10 through the second sub-bypass line 504, and the second switching device 60 is controlled to be turned off. The second preset pressure may be a pressure of the refrigerant at the outlet of the throttling mechanism 5, that is, a pressure of the throttled refrigerant.
Further, the second preset pressure is in a range of 0.4MPa to 1.0MPa, so that when the second preset pressure is less than 0.4MPa, the pressure of the refrigerant in the liquid reservoir 6 is too low, the refrigerant throttled by the throttling mechanism 5 flows into the liquid reservoir 6 through the second sub-bypass pipe 504, and when the second preset pressure is greater than 1.0MPa, the refrigerant in the liquid reservoir 6 does not fully flow into the indoor heat exchanger 10.
The second predetermined pressure may be, but is not limited to, 0.4MPa, 0.7MPa, or 1.0 MPa.
corresponding to the air conditioner shown in fig. 1, the first switching device is a first solenoid valve (the first solenoid valve may be a first one-way solenoid stop valve or a first two-way solenoid stop valve), and the second switching device includes a second solenoid valve (the second solenoid valve may be a second one-way solenoid stop valve or a second two-way solenoid stop valve), and in a specific embodiment, the control method includes steps S602 to S620 shown in fig. 6. The auxiliary liquid storage device, the first electromagnetic valve and the second electromagnetic valve are connected in parallel at the throttling mechanism to store part of refrigerants in advance, the amount of the refrigerants entering the indoor side is increased when the refrigerator is started, the refrigerants are quickly supplemented to the indoor heat exchanger, quick refrigeration is realized, and the specific control method comprises the following steps: when the air conditioner receives a refrigerating mode starting operation instruction, the first electromagnetic valve, the second electromagnetic valve and the throttling mechanism are opened simultaneously, and the refrigerant stored in the auxiliary liquid storage device in advance enters the indoor heat exchanger through the second electromagnetic valve. And after the air conditioner operates for a second preset time, closing the first electromagnetic valve, and when the pressure of the refrigerant in the auxiliary liquid reservoir is lower than the throttled refrigerant pressure p1, closing the second electromagnetic valve to operate in a normal refrigeration mode. When the air conditioner receives a shutdown signal, the throttling mechanism is closed, the first electromagnetic valve is opened at the same time, and the compressor is kept running continuously, so that the refrigerant is gradually stored in the auxiliary liquid storage device 6. There are three methods for judging whether the compressor stops operating: the first is that the compressor continues to operate for a first preset time, the second is that whether the suction pressure of the compressor is smaller than the first preset pressure is judged, the third is that whether the suction temperature of the compressor is smaller than the first preset temperature is judged, if one of the conditions is met, the compressor stops operating, the first electromagnetic valve is closed, the refrigerant is stored in the auxiliary liquid storage device and used when the compressor is started for the next time, and the starting and refrigerating speed is accelerated.
Example five:
The control method provided by the fifth embodiment is used for controlling the air conditioner of the second embodiment, and when the air conditioner of the third embodiment includes the water reservoir 7, the control method provided by the fifth embodiment can also be used for controlling the air conditioner of the third embodiment.
The control method further comprises the following steps: the working condition parameters of the air conditioner meet a second preset condition, and the condensed water in the water storage device 7 is discharged.
The condensed water in the water receiver 7 is discharged or replaced regularly, so that the temperature and the water quantity of the condensed water in the water receiver 7 are kept in a proper range, and the condensed water in the water receiver 7 is ensured to have good cooling and heat preservation effects on the refrigerant in the liquid receiver 6 all the time.
Further, the second preset condition includes: any one of the time exceeding the third preset time period since the last discharge, the amount of the condensed water in the water reservoir 7 reaching the preset amount, and the temperature of the condensed water in the water reservoir 7 exceeding the second preset temperature.
When any one of the conditions that the last discharge time exceeds a second preset duration, the condensate water amount in the water receiver 7 reaches a preset water amount, and the temperature of the condensate water in the water receiver 7 exceeds a second preset temperature is met, the condensate water in the water receiver 7 is discharged, on one hand, the temperature of the condensate water is guaranteed not to be too high, and the cooling effect on a refrigerant is lost, and on the other hand, the condensate water amount in the water receiver 7 is prevented from being too large, so that the condensate water overflows from the water receiver 7.
Corresponding to the air conditioner shown in fig. 2, in the case that the first switching device is a first solenoid valve (the first solenoid valve may be a first one-way solenoid stop valve or a first two-way solenoid stop valve), and the second switching device includes a second solenoid valve (the second solenoid valve may be a second one-way solenoid stop valve or a second two-way solenoid stop valve), in a specific embodiment, the control method includes steps S602 to S620 as shown in fig. 7. When the air conditioner receives a refrigerating mode starting operation instruction, the first electromagnetic valve, the second electromagnetic valve and the throttling mechanism are opened simultaneously, and the refrigerant stored in the auxiliary liquid storage device 6 with the liquid storage in advance enters the indoor heat exchanger through the second electromagnetic valve. And the first electromagnetic valve is closed after the air conditioner operates for a second preset time, and the second electromagnetic valve is closed after the pressure of the refrigerant in the liquid storage device 6 with the liquid storage function is lower than the pressure of the refrigerant after throttling, so that the air conditioner operates in a normal refrigeration mode. Condensed water generated in the operation process of the air conditioner enters the water storage device through the condensed water pipe to be stored. When the air conditioner receives a shutdown signal, the throttling mechanism is closed, the first electromagnetic valve is opened at the same time, and the compressor is kept to continue to operate, so that the refrigerant is gradually accumulated in the liquid storage device with the liquid storage function. There are three methods for judging whether the compressor stops operating: the first is that the compressor continues to operate for a first preset time, the second is that whether the suction pressure of the compressor is smaller than the first preset pressure is judged, the third is that whether the suction temperature of the compressor is smaller than the first preset temperature is judged, if one condition is met, the compressor stops operating, the first electromagnetic valve is closed, the refrigerant is stored in a liquid storage device with a liquid storage function, meanwhile, the condensed water in the water storage device cools and preserves the temperature of the refrigerant, and the refrigerant is used when the compressor is started for next refrigeration, so that the starting and refrigeration speed is accelerated. The water in the water storage device can be discharged or replaced regularly, so that the water quantity and the temperature in the water storage device are in a proper range, and a good cooling and heat preservation effect is ensured.
To sum up, through parallelly connected auxiliary reservoir 6, first switching device and the second switching device in throttle mechanism department and store some refrigerants in advance, the refrigerant volume of entering indoor side when increasing the start makes the refrigerant replenish indoor heat exchanger fast, realizes quick refrigeration to the comdenstion water that produces by the indoor heat exchanger of water receiver storage is used for cooling the refrigerant of storing in advance in the reservoir, has not only increased the refrigerant volume of entering indoor side when making the start, has reduced the refrigerant temperature simultaneously, further does benefit to and realizes quick refrigeration.
As shown in fig. 8, an embodiment of the third aspect of the present invention provides a control apparatus 200, which includes a processor 202 and a memory 204, wherein the processor 202 is configured to implement the steps of the control method according to any one of the embodiments of the first aspect when executing the computer program stored in the memory 204.
An embodiment of a fourth aspect of the present invention provides an air conditioner including the control device 200 as the embodiment of the third aspect.
an embodiment of the fifth aspect of the present invention provides a computer-readable storage medium on which a computer program (instructions) is stored, which when executed by the processor 202 implements the steps of the control method according to any one of the embodiments of the second aspect.
as will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage mediums comprising computer-usable program code(s) (including, but not limited to, disk storage 204, CD-ROM, optical storage 204, etc.).
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor 202 of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor 202 of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory 204 that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory 204 produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It should be noted that in the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
In the description of the present invention, the term "plurality" means two or more unless explicitly specified or limited otherwise; the terms "connected," "secured," and the like are to be construed broadly and unless otherwise stated or indicated, and for example, "connected" may be a fixed connection, a removable connection, an integral connection, or an electrical connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
it will be apparent to those skilled in the art that various changes and modifications may be made therein without departing from the scope of the invention as defined in the appended claims and their equivalents, and it is intended that the invention encompass such changes and modifications as well.

Claims (24)

1. An air conditioner, comprising:
A compressor having an exhaust port and an intake port;
the reversing component is provided with a first port, a second port, a third port and a fourth port, wherein the first port is connected with the exhaust port, and the third port is connected with the suction port;
the first end of the outdoor heat exchanger is connected with the second port, and the first end of the indoor heat exchanger is connected with the fourth port;
A throttling mechanism connected in series between the second end of the outdoor heat exchanger and the second end of the indoor heat exchanger;
The bypass pipeline is connected to two ends of the throttling mechanism in parallel, a first switch device, a liquid storage device and a second switch device are sequentially arranged on the bypass pipeline, the bypass pipeline is divided into a first sub bypass pipeline and a second sub bypass pipeline by the liquid storage device, the first sub bypass pipeline is connected between the second end of the outdoor heat exchanger and the throttling mechanism, the first switch device is arranged on the first sub bypass pipeline and used for controlling the on-off of the first sub bypass pipeline, the second sub bypass pipeline is connected between the second end of the indoor heat exchanger and the throttling mechanism, and the second switch device is arranged on the second sub bypass pipeline and used for controlling the on-off of the second sub bypass pipeline;
And in response to a shutdown instruction, controlling the first switching device to be opened, maintaining the compressor to continue to operate, and controlling the second switching device and the throttling mechanism to be closed so as to enable the first sub-bypass pipeline to be connected and the second sub-bypass pipeline to be disconnected.
2. The air conditioner according to claim 1,
The first switching device includes a first bidirectional electromagnetic cut-off valve, a first one-way electromagnetic cut-off valve, or a first one-way mechanical valve, wherein the first one-way mechanical valve is configured to conduct in a direction from the second end of the outdoor heat exchanger to the second end of the indoor heat exchanger.
3. the air conditioner according to claim 1,
The second switch device comprises a second bidirectional electromagnetic stop valve or a second one-way electromagnetic stop valve, wherein the second one-way electromagnetic stop valve is configured to selectively open or close the second sub-bypass pipeline in the refrigeration mode.
4. The air conditioner according to claim 1,
The throttling mechanism comprises a cut-off throttling mechanism which can be cut off.
5. The air conditioner according to claim 4,
the stop throttling mechanism comprises an electronic expansion valve.
6. The air conditioner according to claim 1,
the throttling mechanism comprises a throttling mechanism body and a third switching device which are connected in series, wherein the third switching device is arranged on a first pipeline between the throttling mechanism body and the second end of the outdoor heat exchanger and used for controlling the on-off of the first pipeline, or the third switching device is arranged on a second pipeline between the throttling mechanism body and the second end of the indoor heat exchanger and used for controlling the on-off of the second pipeline.
7. The air conditioner according to claim 6,
the third switching device comprises a third one-way electromagnetic stop valve or a third two-way electromagnetic stop valve, wherein the third one-way electromagnetic stop valve is configured to selectively open or close the pipeline in the cooling mode.
8. The air conditioner according to claim 6,
The throttle mechanism body comprises a capillary tube, an electronic expansion valve or a thermal expansion valve.
9. The air conditioner according to any one of claims 1 to 8, comprising:
A water reservoir comprising a housing, the reservoir being located within the housing, the housing being adapted to receive condensate water produced by the indoor heat exchanger.
10. The air conditioner according to claim 9,
The housing includes a thermal insulation material.
11. A control method for controlling the air conditioner according to any one of claims 1 to 10, characterized by comprising:
And responding to a shutdown instruction, controlling a first switch device to be opened, maintaining the compressor to continue to operate, and controlling a second switch device and a throttling mechanism to be closed so as to enable a first sub-bypass pipeline to be conducted and a second sub-bypass pipeline to be disconnected, wherein the first sub-bypass pipeline is connected between a second end of the outdoor heat exchanger and the throttling mechanism, the first switch device is arranged on the first sub-bypass pipeline and is used for controlling the on-off of the first sub-bypass pipeline, the second sub-bypass pipeline is connected between a second end of the indoor heat exchanger and the throttling mechanism, and the second switch device is arranged on the second sub-bypass pipeline and is used for controlling the on-off of the second sub-bypass pipeline.
12. the control method according to claim 11, wherein the controlling the first switching device to be opened to maintain the compressor to continue operating in response to a shutdown command, and the controlling the second switching device and the throttle mechanism to be closed comprises:
Detecting working condition parameters of the air conditioner;
And the working condition parameters of the air conditioner meet a first preset condition, the compressor is controlled to stop running, and the first switching device is controlled to be closed, so that the first sub-bypass pipeline is disconnected.
13. The control method according to claim 12,
The working condition parameter of air conditioner satisfies first preset condition, specifically includes: any one of the continuous operation time of the compressor is longer than a first preset time, the suction pressure of the compressor is lower than a first preset pressure, and the suction temperature of the compressor is lower than a first preset temperature.
14. The control method according to claim 13,
The range of the first preset time is 10 s-120 s, the range of the first preset pressure is 0 MPa-0.6 MPa, and the range of the first preset temperature is-30 ℃ to 0 ℃.
15. The control method according to claim 11, characterized by comprising:
And responding to a starting instruction of a refrigeration mode, and controlling the second switching device and the throttling mechanism to be opened so as to conduct the second sub-bypass pipeline.
16. the control method according to claim 15, wherein the controlling the second switching device and the throttle mechanism to be opened in response to the cooling mode on command comprises:
Detecting the pressure of a refrigerant in the liquid accumulator;
and controlling the second switching device to be closed when the pressure of the refrigerant is lower than a second preset pressure so as to disconnect the second sub-bypass pipeline.
17. The control method according to claim 16,
The second preset pressure is in the range of 0.4MPa to 1.0 MPa.
18. the control method according to claim 15,
the response refrigeration mode start-up instruction, control the second switching device and throttle mechanism open, still include: controlling the first switching device to be started so as to conduct the first sub-bypass pipeline;
And after the second preset time, controlling the first switch device to be closed.
19. The control method according to claim 18,
The second preset duration ranges from 1min to 30 min.
20. The control method according to any one of claims 11 to 19, characterized by comprising:
and the working condition parameters of the air conditioner meet a second preset condition, and the condensed water in the water storage device is discharged.
21. The control method according to claim 20,
The second preset condition includes: any one of a time period exceeding a third preset time period from the last discharge time, an amount of condensed water in the water reservoir reaching a preset amount of water, and a temperature of the condensed water in the water reservoir exceeding a second preset temperature.
22. A control apparatus comprising a processor and a memory, the processor being adapted to implement the steps of the control method of any one of claims 11 to 21 when executing a computer program stored in the memory.
23. an air conditioner characterized by comprising the control device according to claim 22.
24. a computer-readable storage medium having stored thereon a computer program (instructions), characterized in that: the computer program (instructions), when executed by a processor, implement the steps of the control method of any one of claims 11 to 21.
CN201910867132.7A 2019-09-12 2019-09-12 Air conditioner, control method and device thereof, and computer-readable storage medium Active CN110542235B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910867132.7A CN110542235B (en) 2019-09-12 2019-09-12 Air conditioner, control method and device thereof, and computer-readable storage medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910867132.7A CN110542235B (en) 2019-09-12 2019-09-12 Air conditioner, control method and device thereof, and computer-readable storage medium

Publications (2)

Publication Number Publication Date
CN110542235A true CN110542235A (en) 2019-12-06
CN110542235B CN110542235B (en) 2021-03-02

Family

ID=68713537

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910867132.7A Active CN110542235B (en) 2019-09-12 2019-09-12 Air conditioner, control method and device thereof, and computer-readable storage medium

Country Status (1)

Country Link
CN (1) CN110542235B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106403413A (en) * 2016-11-25 2017-02-15 广州华凌制冷设备有限公司 Air conditioning system and control method

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5372013A (en) * 1993-07-26 1994-12-13 Billy Y. B. Lau Quick cooling air conditioning system
JPH0798161A (en) * 1993-09-29 1995-04-11 Toshiba Corp Freezer using mixed refrigerant
JP2000179958A (en) * 1998-12-16 2000-06-30 Matsushita Electric Ind Co Ltd Air conditioner
JP2000266415A (en) * 1999-03-15 2000-09-29 Bosch Automotive Systems Corp Refrigerating cycle
JP2009156531A (en) * 2007-12-27 2009-07-16 Mitsubishi Electric Corp Refrigeration system
CN203550268U (en) * 2013-09-23 2014-04-16 广东美的制冷设备有限公司 Air conditioner
US20150377532A1 (en) * 2014-06-26 2015-12-31 Robert B. Uselton Active Refrigerant Charge Compensation for Refrigeration and Air Conditioning Systems
CN105222238A (en) * 2015-08-20 2016-01-06 地球村同益科技(深圳)有限公司 A kind of energy-saving central air conditioner
WO2017022101A1 (en) * 2015-08-05 2017-02-09 三菱電機株式会社 Chilling unit
CN106403413A (en) * 2016-11-25 2017-02-15 广州华凌制冷设备有限公司 Air conditioning system and control method
CN208567193U (en) * 2018-06-07 2019-03-01 邯郸美的制冷设备有限公司 Air-conditioning system

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5372013A (en) * 1993-07-26 1994-12-13 Billy Y. B. Lau Quick cooling air conditioning system
JPH0798161A (en) * 1993-09-29 1995-04-11 Toshiba Corp Freezer using mixed refrigerant
JP2000179958A (en) * 1998-12-16 2000-06-30 Matsushita Electric Ind Co Ltd Air conditioner
JP2000266415A (en) * 1999-03-15 2000-09-29 Bosch Automotive Systems Corp Refrigerating cycle
JP2009156531A (en) * 2007-12-27 2009-07-16 Mitsubishi Electric Corp Refrigeration system
CN203550268U (en) * 2013-09-23 2014-04-16 广东美的制冷设备有限公司 Air conditioner
US20150377532A1 (en) * 2014-06-26 2015-12-31 Robert B. Uselton Active Refrigerant Charge Compensation for Refrigeration and Air Conditioning Systems
WO2017022101A1 (en) * 2015-08-05 2017-02-09 三菱電機株式会社 Chilling unit
CN105222238A (en) * 2015-08-20 2016-01-06 地球村同益科技(深圳)有限公司 A kind of energy-saving central air conditioner
CN106403413A (en) * 2016-11-25 2017-02-15 广州华凌制冷设备有限公司 Air conditioning system and control method
CN208567193U (en) * 2018-06-07 2019-03-01 邯郸美的制冷设备有限公司 Air-conditioning system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106403413A (en) * 2016-11-25 2017-02-15 广州华凌制冷设备有限公司 Air conditioning system and control method

Also Published As

Publication number Publication date
CN110542235B (en) 2021-03-02

Similar Documents

Publication Publication Date Title
JP5809872B2 (en) Heating device
JP2016031182A (en) Air conditioner
JP5375904B2 (en) Air conditioner
CN111207502B (en) Operation control method, operation control device, air conditioning system, and storage medium
CN110715485A (en) Air conditioner, control method and device thereof, and computer-readable storage medium
CN110542231B (en) Air conditioner, control method and device thereof, and computer-readable storage medium
CN114440392A (en) Air conditioner and air conditioner control method
CN202546973U (en) Heat pump type air conditioning device
CN210801680U (en) Cold and warm dual-purpose air source heat pump system
JP2018063094A (en) Air conditioner with hot water supply function
CN110542235B (en) Air conditioner, control method and device thereof, and computer-readable storage medium
CN110715484A (en) Air conditioner, control method and device thereof, and computer-readable storage medium
JP2002013781A (en) Air-conditioning system
CN114353249A (en) Control method and device for multi-split air conditioner and multi-split air conditioner
JP2017009269A (en) Air conditioning system
CN110542227B (en) Air conditioner, control method and device thereof, and computer-readable storage medium
CN110542233B (en) Air conditioner, control method and device thereof, and computer-readable storage medium
CN105135788A (en) Refrigerator and control method thereof
CN110542228A (en) Air conditioner, control method and device thereof, and computer-readable storage medium
CN110542229A (en) air conditioner, control method and device thereof, and computer-readable storage medium
CN110542236B (en) Air conditioner, control method and device thereof, and computer-readable storage medium
CN111578450A (en) Air conditioning system and defrosting method thereof
CN110715483A (en) Air conditioner, control method and device thereof, and computer-readable storage medium
CN219955728U (en) Throttling arrangement and refrigerating system
WO2023092866A1 (en) Refrigerant circulation amount adjusting method and apparatus, and refrigeration system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant