CN107192179A - The control method and computer-readable recording medium of air conditioner and electric expansion valve - Google Patents
The control method and computer-readable recording medium of air conditioner and electric expansion valve Download PDFInfo
- Publication number
- CN107192179A CN107192179A CN201710416966.7A CN201710416966A CN107192179A CN 107192179 A CN107192179 A CN 107192179A CN 201710416966 A CN201710416966 A CN 201710416966A CN 107192179 A CN107192179 A CN 107192179A
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- Prior art keywords
- expansion valve
- electric expansion
- aperture
- fluctuation
- fluctuation range
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Classifications
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- 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
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- 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
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
- F25B2600/2513—Expansion valves
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- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a kind of control method of electric expansion valve, the electric expansion valve method comprises the following steps：Detect the aperture of electric expansion valve；When the aperture of the electric expansion valve of detection has fluctuation, the aperture fluctuation range of electric expansion valve is determined, the aperture of new electric expansion valve is calculated according to the aperture fluctuation range of the electric expansion valve of determination；Electric expansion valve is controlled to be run with the new electronic expansion valve opening.The invention also discloses a kind of air conditioner and computer-readable recording medium.The present invention improves the stability of a system, reduces noise, and then improve system reliability and amenity.
Description
Technical field
The present invention relates to air-conditioning technical field, more particularly to the control method and computer of air conditioner and electric expansion valve can
Read storage medium.
Background technology
Current electronic expansion valve recombination lead-acid technique mainly presets multiple aperture gears, according to bars such as exhaust or the return-air degrees of superheat
Part carries out the regulation of electronic expansion valve opening, when often there is out big one grade of aperture, and exhaust or the return-air degree of superheat are too low, turn down
During one grade of aperture, exhaust or the return-air degree of superheat are too high.Appear in and frequently switch between two gears in the process of running
The situation of fluctuation, causes system operation unstable, produces noise, and the fluctuation of room temperature etc. influences system reliability and amenity
Property.
The above is only used for auxiliary and understands technical scheme, does not represent and recognizes that the above is existing skill
Art.
The content of the invention
It is a primary object of the present invention to provide the control method of air conditioner and electric expansion valve a kind of and computer-readable
Storage medium, it is intended to solve to appear in the situation for frequently switching fluctuation between two gears in the process of running at present, lead
Cause system operation unstable, produce noise, the fluctuation of room temperature etc. influences system reliability and the technical problem of amenity.
To achieve the above object, the present invention provides a kind of control method of electric expansion valve, the control of the electric expansion valve
System comprises the following steps：
Detect the aperture of electric expansion valve；
When the aperture of the electric expansion valve of detection has fluctuation, the aperture fluctuation range of electric expansion valve is determined, according to
The aperture fluctuation range of the electric expansion valve of determination calculates the aperture of new electric expansion valve；
Electric expansion valve is controlled to be run with the new electronic expansion valve opening.
Preferably, when the aperture of the electric expansion valve in detection has fluctuation, the aperture ripple of electric expansion valve is determined
The step of dynamic scope, aperture that new electric expansion valve is calculated according to the aperture fluctuation range of the electric expansion valve of determination, includes：
When the aperture of the electric expansion valve of detection has fluctuation, the fluctuation range of the aperture of electric expansion valve is determined；
Determine the maximum electronic expansion valve opening and minimum electronic expansion valve opening of fluctuation range；
The average of maximum electronic expansion valve opening and minimum electronic expansion valve opening is calculated, the average calculated is labeled as
The aperture of new electric expansion valve.
Preferably, after the step of fluctuation range of the aperture for determining electric expansion valve, in addition to：
It is determined that after fluctuation range, judging the aperture fluctuation of the electric expansion valve in preset time whether in described
In fluctuation range；
When in the fluctuation range, it is determined that whether the number of times in the fluctuation range is more than preset times；
After the number of times in the fluctuation range is more than preset times, performs and determine that the maximum electronics of fluctuation range is swollen
The step of swollen valve opening and minimum electronic expansion valve opening.
Preferably, before the step of aperture of the detection electric expansion valve, in addition to：
Outdoor environment temperature is detected, the aperture of corresponding electric expansion valve is determined according to the outdoor environment temperature；
Electric expansion valve is controlled to be run with the aperture of the electric expansion valve of the determination；
Adjust the aperture of electric expansion valve in real time according to the parameter of system operation.
Preferably, after the step of control electric expansion valve is run with the new electronic expansion valve opening, also wrap
Include：
Detect the aperture of electric expansion valve with the presence or absence of fluctuation；
When the aperture of electric expansion valve has fluctuation, sub- expansion valve opening is recalculated according to fluctuation range, to control
Electric expansion valve is run with the electronic expansion valve opening recalculated.
In addition, to achieve the above object, the present invention also provides a kind of air conditioner, and the air conditioner includes：Memory, processing
Device and the control program for being stored in the electric expansion valve that can be run on the memory and on the processor, the electronics are swollen
Following steps are realized when the control program of swollen valve is by the computing device：
Detect the aperture of electric expansion valve；
When the aperture of the electric expansion valve of detection has fluctuation, the aperture fluctuation range of electric expansion valve is determined, according to
The aperture fluctuation range of the electric expansion valve of determination calculates the aperture of new electric expansion valve；
Electric expansion valve is controlled to be run with the new electronic expansion valve opening.
Preferably, the processor is additionally operable to perform the control program of the electric expansion valve, to realize following steps：
When the aperture of the electric expansion valve of detection has fluctuation, the fluctuation range of the aperture of electric expansion valve is determined；
Determine the maximum electronic expansion valve opening and minimum electronic expansion valve opening of fluctuation range；
The average of maximum electronic expansion valve opening and minimum electronic expansion valve opening is calculated, the average calculated is labeled as
The aperture of new electric expansion valve.
Preferably, after the step of fluctuation range of the aperture for determining electric expansion valve, the processor is additionally operable to
The control program of the electric expansion valve is performed, to realize following steps：
It is determined that after fluctuation range, judging the aperture fluctuation of the electric expansion valve in preset time whether in described
In fluctuation range；
When in the fluctuation range, it is determined that whether the number of times in the fluctuation range is more than preset times；
After the number of times in the fluctuation range is more than preset times, performs and determine that the maximum electronics of fluctuation range is swollen
The step of swollen valve opening and minimum electronic expansion valve opening.
Preferably, before the step of aperture of the detection electric expansion valve, the processor is additionally operable to perform the electricity
The control program of sub- expansion valve, to realize following steps：
Outdoor environment temperature is detected, the aperture of corresponding electric expansion valve is determined according to the outdoor environment temperature；
Electric expansion valve is controlled to be run with the aperture of the electric expansion valve of the determination；
Adjust the aperture of electric expansion valve in real time according to the parameter of system operation.
Preferably, it is described after the step of control electric expansion valve is run with the new electronic expansion valve opening
Processor is additionally operable to perform the control program of the electric expansion valve, to realize following steps：
Detect the aperture of electric expansion valve with the presence or absence of fluctuation；
When the aperture of electric expansion valve has fluctuation, sub- expansion valve opening is recalculated according to fluctuation range, to control
Electric expansion valve is run with the electronic expansion valve opening recalculated.
In addition, to achieve the above object, the present invention also provides a kind of computer-readable recording medium, described computer-readable
Be stored with the control program of electric expansion valve on storage medium, real when the control program of the electric expansion valve is executed by processor
Existing the step of control method of electric expansion valve as described above.
The present invention is fluctuated by existing in the aperture of electric expansion valve, when continuing to fluctuate in certain fluctuation range, according to
Fluctuation range determines the aperture of a new electric expansion valve, and control air conditioner is run with new electronic expansion valve opening, it is to avoid
Continue to fluctuate between two apertures, cause system operation unstable, the problem of producing noise.Improve the stability of a system, reduction
Noise, and then improve system reliability and amenity.
Brief description of the drawings
Fig. 1 be the hardware running environment that scheme of the embodiment of the present invention is related to terminal apparatus structure schematic diagram；
Fig. 2 is the schematic flow sheet of the embodiment of control method one of electric expansion valve of the present invention；
Fig. 3 is the schematic flow sheet of the aperture regulation of electric expansion valve in one embodiment of the invention；
Fig. 4 is the calculation process schematic diagram of the aperture in the middle of electric expansion valve in one embodiment of the invention；
Fig. 5 is the schematic flow sheet of another embodiment of control method of electric expansion valve of the present invention；
Fig. 6 is the schematic flow sheet of the another embodiment of control method of electric expansion valve of the present invention；
Fig. 7 is the schematic flow sheet of electronic expansion valve opening control in one embodiment of the invention.
The realization, functional characteristics and advantage of the object of the invention will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The primary solutions of the embodiment of the present invention are：Detect the aperture of electric expansion valve；In the electric expansion valve of detection
Aperture exist fluctuation when, determine the aperture fluctuation range of electric expansion valve, according to the aperture of the electric expansion valve of determination fluctuate
The aperture of the new electric expansion valve of range computation；Electric expansion valve is controlled to be run with the new electronic expansion valve opening.
Frequently switch the situation of fluctuation between two gears due to appearing in the process of running at present, cause system
Fluctuation of service, produces noise, and the fluctuation of room temperature etc. influences system reliability and the technical problem of amenity.The present invention is carried
For a solution, fluctuated by existing in the aperture of electric expansion valve, when continuing to fluctuate in certain fluctuation range, according to
Fluctuation range determines the aperture of a new electric expansion valve, and control air conditioner is run with new electronic expansion valve opening, it is to avoid
Continue to fluctuate between two apertures, cause system operation unstable, the problem of producing noise.Improve the stability of a system, reduction
Noise, and then improve system reliability and amenity.
As shown in figure 1, Fig. 1 is the terminal structure schematic diagram for the hardware running environment that scheme of the embodiment of the present invention is related to.
Terminal of the embodiment of the present invention can be PC or smart mobile phone, tablet personal computer, E-book reader, portable
Computer etc. has the packaged type terminal device of display function.Described terminal be for realize electric expansion valve precision adjust
Section, control needs to adjust the air conditioner of electronic expansion valve opening.The terminal is connected with air conditioner, for controlling the electricity of air conditioner
Sub- expansion valve opening detection and the regulation of electronic expansion valve opening, and then control the operation of air conditioner.
As shown in figure 1, the terminal can include：Processor 1001, such as CPU, network interface 1004, user interface
1003, memory 1005, communication bus 1002.Wherein, communication bus 1002 is used to realize the connection communication between these components.
User interface 1003 can include display screen (Display), input block such as keyboard (Keyboard), optional user interface
1003 can also include wireline interface, the wave point of standard.Network interface 1004 can optionally connect including the wired of standard
Mouth, wave point (such as WI-FI interfaces).Memory 1005 can be high-speed RAM memory or stable memory
(non-volatile memory), such as magnetic disk storage.Memory 1005 optionally can also be independently of aforementioned processor
1001 storage device.
Alternatively, terminal can also include camera, RF (Radio Frequency, radio frequency) circuit, sensor, audio
Circuit, WiFi module etc..Wherein, sensor ratio such as optical sensor, motion sensor and other sensors.Specifically, light
Sensor may include ambient light sensor and proximity transducer, wherein, ambient light sensor can according to the light and shade of ambient light come
The brightness of display screen is adjusted, proximity transducer can close display screen and/or backlight when mobile terminal is moved in one's ear.As
One kind of motion sensor, gravity accelerometer can detect in all directions the size of (generally three axles) acceleration, quiet
Size and the direction of gravity are can detect that when only, application (such as horizontal/vertical screen switching, correlation available for identification mobile terminal posture
Game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, tap) etc.；Certainly, mobile terminal can also match somebody with somebody
Putting gyroscope, barometer, hygrometer, thermometer, infrared ray sensor, temperature sensor, Dorothy Holman sensor etc., other are sensed
Device, will not be repeated here.
It will be understood by those skilled in the art that the restriction of the terminal structure shown in Fig. 1 not structure paired terminal, can be wrapped
Include than illustrating more or less parts, either combine some parts or different parts arrangement.
As shown in figure 1, leading to as operating system, network can be included in a kind of memory 1005 of computer-readable storage medium
Believe the control application program of module, Subscriber Interface Module SIM and electric expansion valve.
In the terminal shown in Fig. 1, network interface 1004 is mainly used in connecting background server, is carried out with background server
Data communication；User interface 1003 is mainly used in connection client (user terminal), and row data communication is entered with client；And processor
1001 can be used for the control application program of calling the electric expansion valve stored in memory 1005, and perform following operate：
Detect the aperture of electric expansion valve；
When the aperture of the electric expansion valve of detection has fluctuation, the aperture fluctuation range of electric expansion valve is determined, according to
The aperture fluctuation range of the electric expansion valve of determination calculates the aperture of new electric expansion valve；
Electric expansion valve is controlled to be run with the new electronic expansion valve opening.
Further, processor 1001 can call the control application journey of the electric expansion valve stored in memory 1005
Sequence, also performs following operate：
When the aperture of the electric expansion valve of detection has fluctuation, the fluctuation range of the aperture of electric expansion valve is determined；
Determine the maximum electronic expansion valve opening and minimum electronic expansion valve opening of fluctuation range；
The average of maximum electronic expansion valve opening and minimum electronic expansion valve opening is calculated, the average calculated is labeled as
The aperture of new electric expansion valve.
Further, after the step of fluctuation range of the aperture for determining electric expansion valve, processor 1001 can be with
The application program of the electric expansion valve stored in memory 1005 is called, following operate also is performed：
It is determined that after fluctuation range, judging the aperture fluctuation of the electric expansion valve in preset time whether in described
In fluctuation range；
When in the fluctuation range, it is determined that whether the number of times in the fluctuation range is more than preset times；
After the number of times in the fluctuation range is more than preset times, performs and determine that the maximum electronics of fluctuation range is swollen
The step of swollen valve opening and minimum electronic expansion valve opening.
Further, before the step of aperture of the detection electric expansion valve, processor 1001 can call memory
The control application program of the electric expansion valve stored in 1005, also performs following operate：
Outdoor environment temperature is detected, the aperture of corresponding electric expansion valve is determined according to the outdoor environment temperature；
Electric expansion valve is controlled to be run with the aperture of the electric expansion valve of the determination；
Adjust the aperture of electric expansion valve in real time according to the parameter of system operation.
Further, after the step of control electric expansion valve is run with the new electronic expansion valve opening, place
Reason device 1001 can call the control application program of the electric expansion valve stored in memory 1005, also perform following operate：
Detect the aperture of electric expansion valve with the presence or absence of fluctuation；
When the aperture of electric expansion valve has fluctuation, sub- expansion valve opening is recalculated according to fluctuation range, to control
Electric expansion valve is run with the electronic expansion valve opening recalculated.
Reference picture 2, the first embodiment of the present invention provides a kind of control method of electric expansion valve, the electric expansion valve
Control method include：
Step S10, detects the aperture of electric expansion valve；
In one embodiment of this invention, air conditioner is multi-gang air-conditioner device or detachable air conditioner etc., the electronics
It is air conditioner room unit electric expansion valve that expansion valve, which is preferably, and the air conditioner is described by taking multi-connected machine as an example, and an outdoor unit connects
Multiple indoor sets are connect, each indoor set is provided with corresponding electric expansion valve, and each indoor set is individually controlled, and passes through electronic expansion
The aperture regulation of valve controls the flow of refrigerant.After air conditioner unlatching, it can open or open by opening an indoor set
Multiple indoor sets are opened, it is necessary to be controlled to the electric expansion valve of indoor set after air conditioner is opened, and then are controlled to interior
The ability that environment freezes or heated, to provide comfortable indoor environment.It is not each indoor set in air conditioner running
Electric expansion valve be required to regulation, and current indoor machine electric expansion valve need regulation when, acquisition be currently needed for regulation
Electric expansion valve where aperture is interval and regulation direction, (set according to demand, for example, 1min at interval of preset time
Or 2min etc.), whether detection, which once needs to adjust or receive regulating command, is adjusted.The electric expansion valve, which has, much to be opened
Degree, the flow of aperture difference correspondence refrigerant is different, and the regulation direction is increase aperture, reduces aperture or keep three kinds of aperture.
It is different according to demand and have different regulation directions.
After air conditioner unlatching, with reference to Fig. 3, the process of the aperture regulation of electric expansion valve includes：
Step S11, detects outdoor environment temperature, opening for corresponding electric expansion valve is determined according to the outdoor environment temperature
Degree；
Specifically, on air conditioner after electricity, electric expansion valve first resets, air-conditioning its outdoor unit detection outdoor environment temperature T1,
And preset and opened electric expansion valve with different aperture according to different outdoor temperature T1, it is as shown in table 1 below in the present embodiment
(only schematically describing, can be adjusted according to actual conditions), outdoor environment temperature T1 is swollen by electronics for boundary with 5 DEG C and 25 DEG C
The opening aperture of swollen valve is divided into three kinds.And in other embodiments, outdoor environment temperature T1 can be divided into three or four
Even more boundaries, set the opening aperture of electric expansion valve to correspond to a variety of with this.
| Outdoor environment temperature T1 scopes | The target aperture of electric expansion valve |
| 25℃≤T1 | 200 steps |
| 25 DEG C of 5 DEG C≤T1 ＜ | 180 steps |
| 5 DEG C of T1 ＜ | 160 steps |
Table 1
After outdoor environment temperature T1 is got, the target aperture of corresponding electric expansion valve is inquired according to table 1.
Step S12, control electric expansion valve is run with the aperture of the electric expansion valve of the determination；
Electric expansion valve is controlled with the electronic expansion of the determination in the target aperture for inquiring corresponding electric expansion valve
The aperture operation of valve.
Step S13, the aperture of electric expansion valve is adjusted according to the parameter of system operation in real time.
The aperture of the electric expansion valve, the system of air-conditioner outdoor unit are adjusted according to the delivery temperature Td of compressor in real time
The delivery temperature Td of compressor is detected, according to the delivery temperature Td of different compressors by the aperture regulation of electric expansion valve to phase
The default aperture answered.In other embodiments, can be according to the suction temperature of compressor, the delivery temperature degree of superheat, condenser
The aperture of any one in evaporating temperature and the suction temperature degree of superheat or multiple real-time regulation electric expansion valves.Preferably, it is empty
Device is adjusted to detect a delivery temperature Td value again every 1 minute.Air conditioner can also be set between others in other embodiments
Every time detecting delivery temperature Td.If delivery temperature Td values and last detected value are in same interval, not swollen to Current electronic
Swollen valve opening is adjusted, if not in same interval, the intervals control electric expansion valve according to where current exhaust gas temperature Td
Aperture, regulation to the corresponding electric expansion valve target apertures of current exhaust gas temperature Td.Delivery temperature Td and electric expansion valve are opened
The corresponding relation of degree is rule of thumb set, and is set according to household air-conditioner.
Run in the electric expansion valve of control air conditioner with the aperture determined, and constantly regulate in the process of running, detection
The aperture of electric expansion valve, judges that the aperture of electric expansion valve has fluctuation.There is the deterministic process fluctuated in the aperture：Electricity
The aperture of sub- expansion valve is not affixed to an opening value, or the aperture of electric expansion valve is not stablized in default scope
It is interior, or in the open range allowed, if meeting above-mentioned one of condition, judge that the aperture of electric expansion valve has ripple
It is dynamic.
Step S20, when the aperture of the electric expansion valve of detection has fluctuation, determines the aperture fluctuation model of electric expansion valve
Enclose, the aperture of new electric expansion valve is calculated according to the aperture fluctuation range of the electric expansion valve of determination；
The fluctuation range of electric expansion valve is set in advance, for example, for the step of 160 step -200, or the step of 180 step -200 ripple
Dynamic scope, set fluctuation range is set according to the performance of electric expansion valve, is multiple fluctuation ranges.Detecting electronics
After the aperture of expansion valve, the electric expansion valve of the detection is the aperture of the electric expansion valve at multiple time points, in running
It is middle to adjust the aperture of electric expansion valve in real time according to the parameter of system operation, and make it that electric expansion valve is produced and change, and because
The parameter of system operation is continually changing or changed repeatedly, can cause the fluctuation of the aperture of electric expansion valve, in electric expansion valve
Aperture fluctuation in set in the range of when, this scope is defined as to the fluctuation range of Current electronic expansion valve, according to determination
The aperture fluctuation range of electric expansion valve calculate the aperture of new electric expansion valve, the aperture of the new electric expansion valve is
The aperture of the centre of identified fluctuation range, or occur the opening value of most electric expansion valves in wave process.
Specifically, with reference to Fig. 4, the calculation of the aperture of the centre includes：
Step S21, when the aperture of the electric expansion valve of detection has fluctuation, determines the fluctuation of the aperture of electric expansion valve
Scope；
Step S22, determines the maximum electronic expansion valve opening and minimum electronic expansion valve opening of fluctuation range；
Step S23, calculates the average of maximum electronic expansion valve opening and minimum electronic expansion valve opening, equal by what is calculated
Aperture of the value labeled as new electric expansion valve.
It is determined that after the aperture of electric expansion valve, for example, electronic expansion valve opening is fluctuated in 160 steps between 200 steps, newly
Electronic expansion valve opening be 180 steps；Electronic expansion valve opening is fluctuated in 180 steps between 200 steps, and new electric expansion valve is opened
Spend for 190 steps.
Step S30, control electric expansion valve is run with the new electronic expansion valve opening.
After calculating obtains new electronic expansion valve opening, run according to new electronic expansion valve opening.So pass through electricity
The determination of the aperture fluctuation of sub- expansion valve, new electronic expansion valve opening is determined according to fluctuation range, it is to avoid electric expansion valve frequency
Numerous regulation, produces noise, causes system unstable.For example, regulation before, it is necessary to 160 steps between 200 steps fluctuate, and
After 180 steps are operated in, electric expansion valve is just without regulation, because from the spacer step of 180 steps to 160 steps and 200 steps to 180 steps
Number gap is reduced, and gap is in the error range that can allow, and therefore the change regulation that will not continue, is more stablized, will not be produced
Raw fluctuation.
The present embodiment is fluctuated by existing in the aperture of electric expansion valve, when continuing to fluctuate in certain fluctuation range, root
The aperture of a new electric expansion valve is determined according to fluctuation range, control air conditioner is run with new electronic expansion valve opening, kept away
Hand-free continues to be fluctuated between two apertures, causes system operation unstable, the problem of producing noise.Improve the stability of a system, drop
Low noise, and then improve system reliability and amenity.
Further, reference picture 5, the second embodiment of the present invention provides a kind of air conditioner room unit control method, described
Determine electric expansion valve aperture fluctuation range the step of after, in addition to：
Step S40, it is determined that after fluctuation range, judge the electric expansion valve in preset time aperture fluctuation whether
In the fluctuation range；
Step S50, when in the fluctuation range, it is determined that whether the number of times in the fluctuation range is more than in advance
If number of times；
Step S60, after the number of times in the fluctuation range is more than preset times, performs and determines fluctuation range most
The step of big electronic expansion valve opening and minimum electronic expansion valve opening.
In an embodiment of the present invention, determining that a fluctuation range judges again according to the electronic expansion valve opening of detection
Whether the electric expansion valve of detection is in the fluctuation range determined in preset time, if in this fluctuation range
Whether number of times is more than preset times, and the preset times can be inferior with 3 times or 4, after more than preset times, determines fluctuation range
Maximum electronic expansion valve opening and minimum electronic expansion valve opening；Calculate maximum electronic expansion valve opening and minimum electronic expansion
The average of valve opening, the average calculated is labeled as the aperture of new electric expansion valve.After less than preset times, remember again
Number, the aperture of detection electric expansion valve is with the presence or absence of fluctuation.The aperture of electric expansion valve is adjusted using intermediate interpolated method so that
The aperture of electric expansion valve is stable, will not continued jitters.Specifically, the aperture P of recorded electronic expansion valve in the process of running, when
In time T, when P fluctuates number of times equal to or more than m times between P1 and P2, operation aperture P=(P1+P2)/2 is performed, as
One new control.
After according to new electronic expansion valve opening operation, in an embodiment of the present invention, with reference to Fig. 6, the control electricity
After the step of sub- expansion valve is run with the new electronic expansion valve opening, in addition to：
Step S70, the aperture of detection electric expansion valve is with the presence or absence of fluctuation；
Step S80, when the aperture of electric expansion valve has fluctuation, recalculates sub- expansion valve according to fluctuation range and opens
Degree, is run with controlling electric expansion valve with the electronic expansion valve opening recalculated.
Fluctuation is being still had according to new operation aperture, is continuing repetitive operation, constantly refines, to reach stable operation,
Further avoid the occurrence of the situation for frequently switching fluctuation between two gears, it is to avoid cause system unstable, noise is produced,
Fluctuation of room temperature etc. influences system reliability and the situation of human body comfort.
In order to preferably describe the embodiment of the present invention, with reference to Fig. 7, the opening degree control procedure of electric expansion valve includes：
Step S100, normal operation；Whether step S200, electronic expansion valve opening changesIf so, step S300 is performed,
If it is not, returning to whether detection electronic expansion valve opening changes；Step S300, operation aperture P is fluctuated between P1 and P2If so,
Step S400 is performed, returns to whether detection electronic expansion valve opening changes if not；Step S400, frequency n accumulation+1；Step
In S500, time T, n=m (such as m=3)If so, step S600 is performed, if it is not, performing step S700；Step S600, operation is opened
Spend P=(P1+P2)/2；Step S700, numeration n is reset, and numeration n returns to whether detection electronic expansion valve opening changes after resetting.
Pass through intermediate interpolated method so that operation tends towards stability, it is to avoid appear in the situation for frequently switching fluctuation between two gears, keep away
Exempt to cause system operation unstable, the generation of noise, the situation of the influence system reliability such as fluctuation of room temperature and amenity.
In one embodiment, the present invention also provides a kind of air conditioner, and the air conditioner includes：Memory, processor and deposit
The control program for the electric expansion valve that can be run on the memory and on the processor is stored up, the electric expansion valve
Following steps are realized when control program is by the computing device：
Detect the aperture of electric expansion valve；
In one embodiment of this invention, air conditioner is multi-gang air-conditioner device or detachable air conditioner etc., the electronics
It is air conditioner room unit electric expansion valve that expansion valve, which is preferably, and the air conditioner is described by taking multi-connected machine as an example, and an outdoor unit connects
Multiple indoor sets are connect, each indoor set is provided with corresponding electric expansion valve, and each indoor set is individually controlled, and passes through electronic expansion
The aperture regulation of valve controls the flow of refrigerant.After air conditioner unlatching, it can open or open by opening an indoor set
Multiple indoor sets are opened, it is necessary to be controlled to the electric expansion valve of indoor set after air conditioner is opened, and then are controlled to interior
The ability that environment freezes or heated, to provide comfortable indoor environment.It is not each indoor set in air conditioner running
Electric expansion valve be required to regulation, and current indoor machine electric expansion valve need regulation when, acquisition be currently needed for regulation
Electric expansion valve where aperture is interval and regulation direction, (set according to demand, for example, 1min at interval of preset time
Or 2min etc.), whether detection, which once needs to adjust or receive regulating command, is adjusted.The electric expansion valve, which has, much to be opened
Degree, the flow of aperture difference correspondence refrigerant is different, and the regulation direction is increase aperture, reduces aperture or keep three kinds of aperture.
It is different according to demand and have different regulation directions.
After air conditioner unlatching, the process of the aperture regulation of electric expansion valve includes：
Outdoor environment temperature is detected, the aperture of corresponding electric expansion valve is determined according to the outdoor environment temperature；
Specifically, on air conditioner after electricity, electric expansion valve first resets, air-conditioning its outdoor unit detection outdoor environment temperature T1,
And preset and opened electric expansion valve with different aperture according to different outdoor temperature T1, it is as shown in table 1 below in the present embodiment
(only schematically describing, can be adjusted according to actual conditions), outdoor environment temperature T1 is swollen by electronics for boundary with 5 DEG C and 25 DEG C
The opening aperture of swollen valve is divided into three kinds.And in other embodiments, outdoor environment temperature T1 can be divided into three or four
Even more boundaries, set the opening aperture of electric expansion valve to correspond to a variety of with this.
| Outdoor environment temperature T1 scopes | The target aperture of electric expansion valve |
| 25℃≤T1 | 200 steps |
| 25 DEG C of 5 DEG C≤T1 ＜ | 180 steps |
| 5 DEG C of T1 ＜ | 160 steps |
Table 1
After outdoor environment temperature T1 is got, the target aperture of corresponding electric expansion valve is inquired according to table 1.
Electric expansion valve is controlled to be run with the aperture of the electric expansion valve of the determination；
Electric expansion valve is controlled with the electronic expansion of the determination in the target aperture for inquiring corresponding electric expansion valve
The aperture operation of valve.
Adjust the aperture of electric expansion valve in real time according to the parameter of system operation.
The aperture of the electric expansion valve, the system of air-conditioner outdoor unit are adjusted according to the delivery temperature Td of compressor in real time
The delivery temperature Td of compressor is detected, according to the delivery temperature Td of different compressors by the aperture regulation of electric expansion valve to phase
The default aperture answered.In other embodiments, can be according to the suction temperature of compressor, the delivery temperature degree of superheat, condenser
The aperture of any one in evaporating temperature and the suction temperature degree of superheat or multiple real-time regulation electric expansion valves.Preferably, it is empty
Device is adjusted to detect a delivery temperature Td value again every 1 minute.Air conditioner can also be set between others in other embodiments
Every time detecting delivery temperature Td.If delivery temperature Td values and last detected value are in same interval, not swollen to Current electronic
Swollen valve opening is adjusted, if not in same interval, the intervals control electric expansion valve according to where current exhaust gas temperature Td
Aperture, regulation to the corresponding electric expansion valve target apertures of current exhaust gas temperature Td.Delivery temperature Td and electric expansion valve are opened
The corresponding relation of degree is rule of thumb set, and is set according to household air-conditioner.
Run in the electric expansion valve of control air conditioner with the aperture determined, and constantly regulate in the process of running, detection
The aperture of electric expansion valve, judges that the aperture of electric expansion valve has fluctuation.There is the deterministic process fluctuated in the aperture：Electricity
The aperture of sub- expansion valve is not affixed to an opening value, or the aperture of electric expansion valve is not stablized in default scope
It is interior, or in the open range allowed, if meeting above-mentioned one of condition, judge that the aperture of electric expansion valve has ripple
It is dynamic.
When the aperture of the electric expansion valve of detection has fluctuation, the aperture fluctuation range of electric expansion valve is determined, according to
The aperture fluctuation range of the electric expansion valve of determination calculates the aperture of new electric expansion valve；
The fluctuation range of electric expansion valve is set in advance, for example, for the step of 160 step -200, or the step of 180 step -200 ripple
Dynamic scope, set fluctuation range is set according to the performance of electric expansion valve, is multiple fluctuation ranges.Detecting electronics
After the aperture of expansion valve, the electric expansion valve of the detection is the aperture of the electric expansion valve at multiple time points, in running
It is middle to adjust the aperture of electric expansion valve in real time according to the parameter of system operation, and make it that electric expansion valve is produced and change, and because
The parameter of system operation is continually changing or changed repeatedly, can cause the fluctuation of the aperture of electric expansion valve, in electric expansion valve
Aperture fluctuation in set in the range of when, this scope is defined as to the fluctuation range of Current electronic expansion valve, according to determination
The aperture fluctuation range of electric expansion valve calculate the aperture of new electric expansion valve, the aperture of the new electric expansion valve is
The aperture of the centre of identified fluctuation range, or occur the opening value of most electric expansion valves in wave process.
Specifically, the calculation of the aperture of the centre includes：
When the aperture of the electric expansion valve of detection has fluctuation, the fluctuation range of the aperture of electric expansion valve is determined；
Determine the maximum electronic expansion valve opening and minimum electronic expansion valve opening of fluctuation range；
The average of maximum electronic expansion valve opening and minimum electronic expansion valve opening is calculated, the average calculated is labeled as
The aperture of new electric expansion valve.
It is determined that after the aperture of electric expansion valve, for example, electronic expansion valve opening is fluctuated in 160 steps between 200 steps, newly
Electronic expansion valve opening be 180 steps；Electronic expansion valve opening is fluctuated in 180 steps between 200 steps, and new electric expansion valve is opened
Spend for 190 steps.
Electric expansion valve is controlled to be run with the new electronic expansion valve opening.
After calculating obtains new electronic expansion valve opening, run according to new electronic expansion valve opening.So pass through electricity
The determination of the aperture fluctuation of sub- expansion valve, new electronic expansion valve opening is determined according to fluctuation range, it is to avoid electric expansion valve frequency
Numerous regulation, produces noise, causes system unstable.For example, regulation before, it is necessary to 160 steps between 200 steps fluctuate, and
After 180 steps are operated in, electric expansion valve is just without regulation, because from the spacer step of 180 steps to 160 steps and 200 steps to 180 steps
Number gap is reduced, and gap is in the error range that can allow, and therefore the change regulation that will not continue, is more stablized, will not be produced
Raw fluctuation.
The present embodiment is fluctuated by existing in the aperture of electric expansion valve, when continuing to fluctuate in certain fluctuation range, root
The aperture of a new electric expansion valve is determined according to fluctuation range, control air conditioner is run with new electronic expansion valve opening, kept away
Hand-free continues to be fluctuated between two apertures, causes system operation unstable, the problem of producing noise.Improve the stability of a system, drop
Low noise, and then improve system reliability and amenity.
Further, after the step of fluctuation range of the aperture for determining electric expansion valve, the electric expansion valve
Control program by the computing device when realize following steps：
It is determined that after fluctuation range, judging the aperture fluctuation of the electric expansion valve in preset time whether in described
In fluctuation range；
When in the fluctuation range, it is determined that whether the number of times in the fluctuation range is more than preset times；
After the number of times in the fluctuation range is more than preset times, performs and determine that the maximum electronics of fluctuation range is swollen
The step of swollen valve opening and minimum electronic expansion valve opening.
In an embodiment of the present invention, determining that a fluctuation range judges again according to the electronic expansion valve opening of detection
Whether the electric expansion valve of detection is in the fluctuation range determined in preset time, if in this fluctuation range
Whether number of times is more than preset times, and the preset times can be inferior with 3 times or 4, after more than preset times, determines fluctuation range
Maximum electronic expansion valve opening and minimum electronic expansion valve opening；Calculate maximum electronic expansion valve opening and minimum electronic expansion
The average of valve opening, the average calculated is labeled as the aperture of new electric expansion valve.After less than preset times, remember again
Number, the aperture of detection electric expansion valve is with the presence or absence of fluctuation.The aperture of electric expansion valve is adjusted using intermediate interpolated method so that
The aperture of electric expansion valve is stable, will not continued jitters.Specifically, the aperture P of recorded electronic expansion valve in the process of running, when
In time T, when P fluctuates number of times equal to or more than m times between P1 and P2, operation aperture P=(P1+P2)/2 is performed, as
One new control.
After according to new electronic expansion valve opening operation, in an embodiment of the present invention, with reference to Fig. 6, the control electricity
After the step of sub- expansion valve is run with the new electronic expansion valve opening, in addition to：
Detect the aperture of electric expansion valve with the presence or absence of fluctuation；
When the aperture of electric expansion valve has fluctuation, sub- expansion valve opening is recalculated according to fluctuation range, to control
Electric expansion valve is run with the electronic expansion valve opening recalculated.
Fluctuation is being still had according to new operation aperture, is continuing repetitive operation, constantly refines, to reach stable operation,
Further avoid the occurrence of the situation for frequently switching fluctuation between two gears, it is to avoid cause system unstable, noise is produced,
Fluctuation of room temperature etc. influences system reliability and the situation of human body comfort.
In addition, the embodiment of the present invention also proposes a kind of computer-readable recording medium, the computer-readable recording medium
On be stored with the control program of electric expansion valve, following behaviour is realized when the control program of the electric expansion valve is executed by processor
Make：
Detect the aperture of electric expansion valve；
When the aperture of the electric expansion valve of detection has fluctuation, the aperture fluctuation range of electric expansion valve is determined, according to
The aperture fluctuation range of the electric expansion valve of determination calculates the aperture of new electric expansion valve；
Electric expansion valve is controlled to be run with the new electronic expansion valve opening.
Further, following operation is also realized when the control program of the electric expansion valve is executed by processor：
When the aperture of the electric expansion valve of detection has fluctuation, the fluctuation range of the aperture of electric expansion valve is determined；
Determine the maximum electronic expansion valve opening and minimum electronic expansion valve opening of fluctuation range；
The average of maximum electronic expansion valve opening and minimum electronic expansion valve opening is calculated, the average calculated is labeled as
The aperture of new electric expansion valve.
Further, after the step of fluctuation range of the aperture for determining electric expansion valve, the electric expansion valve
Control program also realize following operation when being executed by processor：
It is determined that after fluctuation range, judging the aperture fluctuation of the electric expansion valve in preset time whether in described
In fluctuation range；
When in the fluctuation range, it is determined that whether the number of times in the fluctuation range is more than preset times；
After the number of times in the fluctuation range is more than preset times, performs and determine that the maximum electronics of fluctuation range is swollen
The step of swollen valve opening and minimum electronic expansion valve opening.
Further, before the step of aperture of the detection electric expansion valve, the control program of the electric expansion valve
Following operation is also realized when being executed by processor：
Outdoor environment temperature is detected, the aperture of corresponding electric expansion valve is determined according to the outdoor environment temperature；
Electric expansion valve is controlled to be run with the aperture of the electric expansion valve of the determination；
Adjust the aperture of electric expansion valve in real time according to the parameter of system operation.
Further, after the step of control electric expansion valve is run with the new electronic expansion valve opening, institute
The control program for stating electric expansion valve also realizes following operation when being executed by processor：
Detect the aperture of electric expansion valve with the presence or absence of fluctuation；
When the aperture of electric expansion valve has fluctuation, sub- expansion valve opening is recalculated according to fluctuation range, to control
Electric expansion valve is run with the electronic expansion valve opening recalculated.
It should be noted that herein, term " comprising ", "comprising" or its any other variant are intended to non-row
His property is included, so that process, method, article or system including a series of key elements not only include those key elements, and
And also including other key elements being not expressly set out, or also include for this process, method, article or system institute inherently
Key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that including this
Also there is other identical element in process, method, article or the system of key element.
The embodiments of the present invention are for illustration only, and the quality of embodiment is not represented.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Understood based on such, technical scheme is substantially done to prior art in other words
Going out the part of contribution can be embodied in the form of software product, and the computer software product is stored in one as described above
In storage medium (such as ROM/RAM, magnetic disc, CD), including some instructions to cause a station terminal equipment (can be mobile phone,
Computer, server, air conditioner, or network equipment etc.) perform method described in each of the invention embodiment.
The preferred embodiments of the present invention are these are only, are not intended to limit the scope of the invention, it is every to utilize this hair
Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (11)
1. a kind of control method of electric expansion valve, it is characterised in that the control of the electric expansion valve comprises the following steps：
Detect the aperture of electric expansion valve；
When the aperture of the electric expansion valve of detection has fluctuation, the aperture fluctuation range of electric expansion valve is determined, according to determination
The aperture fluctuation range of electric expansion valve calculate the aperture of new electric expansion valve；
Electric expansion valve is controlled to be run with the new electronic expansion valve opening.
2. the control method of electric expansion valve as claimed in claim 1, it is characterised in that the electric expansion valve in detection
Aperture exist fluctuation when, determine the aperture fluctuation range of electric expansion valve, according to the aperture of the electric expansion valve of determination fluctuate
The step of aperture of the new electric expansion valve of range computation, includes：
When the aperture of the electric expansion valve of detection has fluctuation, the fluctuation range of the aperture of electric expansion valve is determined；
Determine the maximum electronic expansion valve opening and minimum electronic expansion valve opening of fluctuation range；
The average of the maximum electronic expansion valve opening of calculating and minimum electronic expansion valve opening, the average calculated is labeled as newly
The aperture of electric expansion valve.
3. the control method of electric expansion valve as claimed in claim 2, it is characterised in that the determination electric expansion valve is opened
After the step of fluctuation range of degree, in addition to：
It is determined that after fluctuation range, judging whether the aperture fluctuation of the electric expansion valve in preset time is in the fluctuation
In the range of；
When in the fluctuation range, it is determined that whether the number of times in the fluctuation range is more than preset times；
After the number of times in the fluctuation range is more than preset times, the maximum electric expansion valve for determining fluctuation range is performed
The step of aperture and minimum electronic expansion valve opening.
4. the control method of electric expansion valve as claimed in claim 1, it is characterised in that the detection electric expansion valve is opened
Before the step of spending, in addition to：
Outdoor environment temperature is detected, the aperture of corresponding electric expansion valve is determined according to the outdoor environment temperature；
Electric expansion valve is controlled to be run with the aperture of the electric expansion valve of the determination；
Adjust the aperture of electric expansion valve in real time according to the parameter of system operation.
5. the control method of the electric expansion valve as described in any one of Claims 1-4, it is characterised in that the control electronics
After the step of expansion valve is run with the new electronic expansion valve opening, in addition to：
Detect the aperture of electric expansion valve with the presence or absence of fluctuation；
When the aperture of electric expansion valve has fluctuation, sub- expansion valve opening is recalculated according to fluctuation range, to control electronics
Expansion valve is run with the electronic expansion valve opening recalculated.
6. a kind of air conditioner, it is characterised in that the air conditioner includes：Memory, processor and it is stored on the memory
And the control program for the electric expansion valve that can be run on the processor, the control program of the electric expansion valve is by the place
Reason device realizes following steps when performing：
Detect the aperture of electric expansion valve；
When the aperture of the electric expansion valve of detection has fluctuation, the aperture fluctuation range of electric expansion valve is determined, according to determination
The aperture fluctuation range of electric expansion valve calculate the aperture of new electric expansion valve；
Electric expansion valve is controlled to be run with the new electronic expansion valve opening.
7. air conditioner as claimed in claim 6, it is characterised in that the processor is additionally operable to perform the electric expansion valve
Control program, to realize following steps：
When the aperture of the electric expansion valve of detection has fluctuation, the fluctuation range of the aperture of electric expansion valve is determined；
Determine the maximum electronic expansion valve opening and minimum electronic expansion valve opening of fluctuation range；
The average of the maximum electronic expansion valve opening of calculating and minimum electronic expansion valve opening, the average calculated is labeled as newly
The aperture of electric expansion valve.
8. air conditioner as claimed in claim 6, it is characterised in that the fluctuation range of the aperture of the determination electric expansion valve
After step, the processor is additionally operable to perform the control program of the electric expansion valve, to realize following steps：
It is determined that after fluctuation range, judging whether the aperture fluctuation of the electric expansion valve in preset time is in the fluctuation
In the range of；
When in the fluctuation range, it is determined that whether the number of times in the fluctuation range is more than preset times；
After the number of times in the fluctuation range is more than preset times, the maximum electric expansion valve for determining fluctuation range is performed
The step of aperture and minimum electronic expansion valve opening.
9. the air conditioner as described in any one of claim 6 to 8, it is characterised in that the aperture of the detection electric expansion valve
Before step, the processor is additionally operable to perform the control program of the electric expansion valve, to realize following steps：
Outdoor environment temperature is detected, the aperture of corresponding electric expansion valve is determined according to the outdoor environment temperature；
Electric expansion valve is controlled to be run with the aperture of the electric expansion valve of the determination；
Adjust the aperture of electric expansion valve in real time according to the parameter of system operation.
10. the air conditioner as described in any one of claim 6 to 8, it is characterised in that the control electric expansion valve is with described new
Electronic expansion valve opening the step of run after, the processor is additionally operable to perform the control program of the electric expansion valve,
To realize following steps：
Detect the aperture of electric expansion valve with the presence or absence of fluctuation；
When the aperture of electric expansion valve has fluctuation, sub- expansion valve opening is recalculated according to fluctuation range, to control electronics
Expansion valve is run with the electronic expansion valve opening recalculated.
11. a kind of computer-readable recording medium, it is characterised in that the electronics that is stored with the computer-readable recording medium is swollen
The control program of swollen valve, is realized when the control program of the electric expansion valve is executed by processor as any in claim 1 to 5
The step of control method of electric expansion valve described in.
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| CN108613336A (en) * | 2018-05-15 | 2018-10-02 | 青岛海尔空调电子有限公司 | It is a kind of for controlling the method and apparatus of air conditioner, air conditioner, computer readable storage medium |
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| CN109668274A (en) * | 2018-12-20 | 2019-04-23 | 广东Tcl智能暖通设备有限公司 | Hydrojet control method for electronic expansion valve, air conditioner and readable storage medium storing program for executing |
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| CN110579039A (en) * | 2019-09-12 | 2019-12-17 | 青岛海信日立空调系统有限公司 | control method of refrigerant circulating system |
| CN112254311A (en) * | 2020-10-14 | 2021-01-22 | 珠海格力电器股份有限公司 | Control method of electronic expansion valve and air conditioner |
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