CN109084445A - A kind of initial opening method of adjustment, device and the air conditioner of electric expansion valve - Google Patents
A kind of initial opening method of adjustment, device and the air conditioner of electric expansion valve Download PDFInfo
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- CN109084445A CN109084445A CN201810966692.3A CN201810966692A CN109084445A CN 109084445 A CN109084445 A CN 109084445A CN 201810966692 A CN201810966692 A CN 201810966692A CN 109084445 A CN109084445 A CN 109084445A
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- initial opening
- expansion valve
- electric expansion
- air conditioner
- aperture
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
-
- 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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- 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)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention provides initial opening method of adjustment, device and the air conditioners of a kind of electric expansion valve, by obtain initial opening, air conditioner of the electric expansion valve in electricity operation on air conditioner it is stable when operating parameter and when stable air conditioner electric expansion valve stabilization aperture, the refrigerant charging grade of air conditioner is determined according to operating parameter, according to refrigerant charging grade and stablize aperture adjustment initial opening, initial opening adjusted value is obtained, so that initial opening electric expansion valve starts next time when is initial opening adjusted value.The application is adjusted initial opening according to the stabilization aperture of electric expansion valve when the refrigerant charging grade and air conditioner stable operation of air conditioner, the initial opening of electric expansion valve is realized to the adaptive of refrigerant charge, initial opening is no longer fixed value, it avoids in refrigerant charging excess, the excessive generation for leading to back liquid of the initial opening of electric expansion valve, promotes the reliability of air conditioner.
Description
Technical field
The present invention relates to air conditioner controlling technology field, in particular to the initial opening method of adjustment of a kind of electric expansion valve,
Device and air conditioner.
Background technique
In existing convertible frequency air-conditioner, especially multi-line system, throttle part mostly uses electronic expansion valve controls.It considers
Compressor start platform, output speed and startup stage refrigerant Rapid Circulation, in air conditioner startup stage, electric expansion valve
Also can all there be the process of a starting initialization, start to automatically control after some time again.Air-conditioning producer is universal at present
Way is, in the fixed time period of startup stage, a fixed initial opening or range, this control is arranged in electron expansion valve
Mode processed is only applicable to the suitable or on the low side situation of the refrigerant charging in air conditioner, empty when refrigerant charging excess
Adjusting device to there is startup stage because the initial opening of electric expansion valve is excessive causes flow bigger than normal, so that evaporator has little time to evaporate
Refrigerant liquid, that is, there is a phenomenon where returning liquid, reduces the reliability of air conditioner so that refrigerant liquid flows into compressor.
Summary of the invention
In view of this, the present invention is directed to propose initial opening method of adjustment, device and the air conditioner of a kind of electric expansion valve,
To solve in the prior art, because the initial opening of electric expansion valve is set as fixed value, so that air conditioner is in initial operation stage
The technical issues of liquid easily occurs back.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
In a first aspect, being applied to air conditioner, institute the present invention provides a kind of initial opening method of adjustment of electric expansion valve
Stating air conditioner includes electric expansion valve, which comprises
Obtain initial opening of the electric expansion valve in electricity operation on the air conditioner；
Obtain the air conditioner it is stable when operating parameter；
Obtain the air conditioner it is stable when the electric expansion valve stabilization aperture；
The refrigerant charging grade of the air conditioner is determined according to the operating parameter；
The initial opening is adjusted according to the refrigerant charging grade and the stable aperture, obtains initial opening adjustment
Value, so that the initial opening electric expansion valve starts next time when is the initial opening adjusted value.
Further, described according to the refrigerant charging grade and the stable aperture adjusts the initial opening, it obtains
Include: to the step of initial opening adjusted value
Calculate the difference between the initial opening and the stable aperture；
The initial opening adjusted value is calculated according to the refrigerant charging grade and the difference.
Further, the first mapping table and the second mapping table are prestored in the air conditioner, wherein described
One mapping table records the corresponding relationship for having refrigerant charging grade and regulation coefficient, and the second mapping table record has
Initial opening and the corresponding relationship for stablizing the difference and adjustment a reference value between aperture, it is described according to the refrigerant charging grade
And the difference calculates the step of initial opening adjusted value and includes:
The corresponding regulation coefficient of the refrigerant charging grade is determined in first mapping table；
The corresponding adjustment a reference value of the difference is determined in second mapping table；
The initial opening adjusted value is calculated according to the regulation coefficient and the adjustment a reference value.
Further, described according to the regulation coefficient and the adjustment a reference value calculates the initial opening adjusted value
Step includes:
According to formula P1'=P1- μ * Δ P calculates the initial opening adjusted value, wherein P1' adjusted for the initial opening
Value, P1For the initial opening of the electric expansion valve, μ is the regulation coefficient, and Δ P is the adjustment a reference value.
Further, the operating parameter includes the average aperture P of the electric expansion valvex, system high pressure saturation temperature
TH, system low-voltage saturation temperature TLAnd degree of supercooling Δ T, it is described to determine that the refrigerant of the air conditioner fills according to the operating parameter
Infuse grade the step of include:
Work as Px>k1And TH≤Ta+m1And TL≤Tb-n1And Δ T≤h1When, determine that the refrigerant charging grade is first etc.
Grade, wherein k1For the first default aperture, TaFor condensation side environment temperature, m1For the first preset temperature, TbFor evaporation side environment temperature
Degree, n1For the second preset temperature, h1For third preset temperature；
Work as k2≤Px≤k1And Ta+m1<TH≤Ta+m2And Tb-n1<TL≤Tb-n2And h1<ΔT≤h2When, determine the refrigeration
It is the second grade that agent, which fills grade, wherein k2For the second default aperture, m2For the 4th preset temperature, n2For the 5th preset temperature,
h2For the 6th preset temperature；
Work as k3≤Px<k2And Ta+m2<TH<Ta+m3And Tb-n2<TL<Tb-n3And h2<ΔT<h3When, determine that the refrigerant fills
Note grade is the tertiary gradient, wherein k3Aperture, m are preset for third3For the 7th preset temperature, n3For the 8th preset temperature, h3For
9th preset temperature；
Work as Px<k3And TH≥Ta+m3And TL≥Tb-n3And h2≥h3When, determine that the refrigerant charging grade is 4th etc.
Grade.
Further, the minimum value of the initial opening adjusted value is given threshold.
Second aspect, the present invention also provides a kind of initial openings of electric expansion valve to adjust device, is applied to air conditioner,
The air conditioner includes electric expansion valve, and described device includes:
Initial opening obtains module, for obtaining the electric expansion valve initially opening in electricity operation on the air conditioner
Degree；
Parameter acquisition module, for obtain the air conditioner it is stable when operating parameter；
Stablize aperture and obtain module, for obtain the air conditioner it is stable when the electric expansion valve stabilization open
Degree；
Level determination module is filled, for determining the refrigerant charging grade of the air conditioner according to the operating parameter；
Initial opening adjusts module, for described initial according to the refrigerant charging grade and the stable aperture adjustment
Aperture obtains initial opening adjusted value, so that the initial opening electric expansion valve starts next time when is initially opened to be described
Spend adjusted value.
Further, the initial opening adjustment module includes:
Difference calculating module, for calculating the difference between the initial opening and the stable aperture；
Adjustment calculation module, for calculating the initial opening according to the refrigerant charging grade and the difference
Adjusted value.
Further, the first mapping table and the second mapping table are prestored in the air conditioner, wherein described
One mapping table records the corresponding relationship for having refrigerant charging grade and regulation coefficient, and the second mapping table record has
Initial opening and the corresponding relationship for stablizing the difference and adjustment a reference value between aperture；
The adjustment calculation module is used to determine the refrigerant charging grade pair in first mapping table
The regulation coefficient answered determines the corresponding adjustment a reference value of the difference in second mapping table, and according to the tune
Integral coefficient and the adjustment a reference value calculate the initial opening adjusted value.
Further, the adjustment calculation module is used for according to formula P1'=P1- μ * Δ P calculates the initial opening tune
Whole value, wherein P1' it is the initial opening adjusted value, P1For the initial opening of the electric expansion valve, μ is adjustment system
Number, Δ P are the adjustment a reference value.
Further, the operating parameter includes the average aperture P of the electric expansion valvex, system high pressure saturation temperature
TH, system low-voltage saturation temperature TLAnd degree of supercooling Δ T；
The filling level determination module is for working as Px>k1And TH≤Ta+m1And TL≤Tb-n1And Δ T≤h1When, determine institute
Stating refrigerant charging grade is the first estate, wherein k1For the first default aperture, TaFor condensation side environment temperature, m1It is pre- for first
If temperature, TbFor evaporation side environment temperature, n1For the second preset temperature, h1For third preset temperature；Work as k2≤Px≤k1And Ta+m1<
TH≤Ta+m2And Tb-n1<TL≤Tb-n2And h1<ΔT≤h2When, determine that the refrigerant charging grade is the second grade, wherein k2
For the second default aperture, m2For the 4th preset temperature, n2For the 5th preset temperature, h2For the 6th preset temperature；Work as k3≤Px<k2And
Ta+m2<TH<Ta+m3And Tb-n2<TL<Tb-n3And h2<ΔT<h3When, determine that the refrigerant charging grade is the tertiary gradient,
In, k3Aperture, m are preset for third3For the 7th preset temperature, n3For the 8th preset temperature, h3For the 9th preset temperature；Work as Px<k3
And TH≥Ta+m3And TL≥Tb-n3And h2≥h3When, determine that the refrigerant charging grade is the fourth estate.
The third aspect, the present invention also provides a kind of air conditioner, the air conditioner includes controller and is stored with computer
The memory of program when the computer program is read and run by the controller, realizes side described in above-mentioned first aspect
Method.
Compared with the existing technology, the initial opening method of adjustment of electric expansion valve of the present invention has the advantage that
The initial opening method of adjustment of electric expansion valve of the present invention obtains the electric expansion valve in the air-conditioning
Initial opening on device when electricity operation；Obtain the air conditioner it is stable when operating parameter；Obtain the air conditioner operation
The stabilization aperture of electric expansion valve when stablizing；The refrigerant charging etc. of the air conditioner is determined according to the operating parameter
Grade；The initial opening is adjusted according to the refrigerant charging grade and the stable aperture, obtains initial opening adjusted value, with
Initial opening initial opening adjusted value when starting the electric expansion valve next time.The application is according to air conditioner
Initial opening of the stabilization aperture of electric expansion valve to electric expansion valve when refrigerant charging grade and air conditioner stable operation
It is adjusted, realizes the initial opening of electric expansion valve to the adaptive of refrigerant charge, initial opening is no longer fixed
Value, avoids when refrigerant charging excess, and the initial opening of electric expansion valve is excessive to cause air conditioner that liquid phenomenon occurs back,
To effectively reduce back liquid risk, the reliability of air conditioner is promoted.
The initial opening adjustment device and the air conditioner of the electric expansion valve and initially opening for above-mentioned electric expansion valve
Spending method of adjustment, possessed advantage is identical compared with the existing technology, and details are not described herein.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the structural block diagram of air conditioner described in the embodiment of the present invention；
Fig. 2 is the flow diagram of the initial opening method of adjustment of electric expansion valve described in the embodiment of the present invention；
Fig. 3 is the schematic diagram of the corresponding relationship of operating parameter described in the embodiment of the present invention and refrigerant charging grade；
Fig. 4 is the sub-step schematic diagram of step S105 in Fig. 2；
Fig. 5 is the schematic diagram of the first mapping table described in the embodiment of the present invention；
Fig. 6 is the schematic diagram of the second mapping table described in the embodiment of the present invention；
Fig. 7 is that the initial opening of electric expansion valve described in the embodiment of the present invention adjusts the functional block diagram of device.
Fig. 8 is the specific functional modules schematic diagram that initial opening adjusts module in Fig. 7.
Icon: 1- air conditioner；2- electric expansion valve；3- condenser；4- evaporator；5- compressor；6- first pressure sensing
Device；7- second pressure sensor；The first temperature sensor of 8-；9- second temperature sensor；10- third temperature sensor；11- is deposited
Reservoir；12- controller；The initial opening of 13- electric expansion valve adjusts device；14- initial opening obtains module；15- parameter obtains
Modulus block；16- stablizes aperture and obtains module；17- fills level determination module；18- initial opening adjusts module；19- difference meter
Calculate module；20- adjustment calculation module.
Specific embodiment
Below in conjunction with attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Usually exist
The component of the embodiment of the present invention described and illustrated in attached drawing can be arranged and be designed with a variety of different configurations herein.Cause
This, is not intended to limit claimed invention to the detailed description of the embodiment of the present invention provided in the accompanying drawings below
Range, but it is merely representative of selected embodiment of the invention.Based on the embodiment of the present invention, those skilled in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
The initial opening method of adjustment and device of electric expansion valve provided by the embodiment of the present invention can be applied to shown in Fig. 1
Air conditioner 1 in.The air conditioner 1 include electric expansion valve 2, condenser 3, evaporator 4, compressor 5, first pressure sensor 6,
Second pressure sensor 7, the first temperature sensor 8, second temperature sensor 9, third temperature sensor 10, memory 11 and control
Device 12 processed is sequentially connected between electric expansion valve 2, evaporator 4, compressor 5 and condenser 3 with pipeline, formed one it is closed
System, refrigerant constantly circulate in system pipeline；The first pressure sensor 6 is arranged in the compressor 5 and institute
It states on the pipeline between condenser 3, the pressure for being vented side ducts for detecting compressor 5, i.e. system high pressure；The second pressure
Sensor 7 is arranged on the pipeline between the compressor 5 and the evaporator 4, for detecting 5 air-breathing side ducts of compressor
Pressure, i.e. system low-voltage；First temperature sensor 8 is used to detect the outlet pipe temperature of the condenser 3；The second temperature
Sensor 9 is for detecting condensation side environment temperature (environment temperature locating for the i.e. described condenser 3)；The third temperature sensor
10 for detecting evaporation side environment temperature (environment temperature locating for the i.e. described evaporator 4).The electric expansion valve 2, condenser
3, evaporator 4, compressor 5, first pressure sensor 6, second pressure sensor 7, the first temperature sensor 8, second temperature pass
Sensor 9, third temperature sensor 10, memory 11 are electrically connected with controller 12, on the air conditioner 1 after electricity operation, control
The working condition of electric expansion valve 2, condenser 3, evaporator 4, compressor 5 can be monitored in real time in device 12 processed, and obtains in real time
System low-voltage, the first temperature sensor 8 that system high pressure, the second pressure sensor 7 of the detection of one pressure sensor 6 detect detect
The outlet pipe temperature of condenser 3, the condensation side environment temperature that detects of second temperature sensor 9 and third temperature sensor 10 examine
The evaporation side environment temperature of survey, to judge the refrigerant charging grade in air conditioner 1, and according to refrigerant charging etc.
The stabilization aperture of electric expansion valve 2 is adjusted the initial opening of electric expansion valve 2 when grade, 1 stable operation of air conditioner, so that
Initial opening electric expansion valve 2 starts next time when is initial opening adjusted, to realize the initial of electric expansion valve 2
Aperture avoids when refrigerant charging excess the adaptive of refrigerant charge, the initial opening mistake of electric expansion valve 2
Cause air conditioner 1 that liquid phenomenon occurs back greatly, to effectively reduce back liquid risk, promotes the reliability of air conditioner 1.
Referring to figure 2., the process for the initial opening method of adjustment of electric expansion valve provided by the embodiment of the present invention is shown
It is intended to.It should be noted that the initial opening method of adjustment of electric expansion valve of the present invention is not with Fig. 2 and following institute
The specific order stated is limitation.It should be appreciated that in other embodiments, the initial opening tune of electric expansion valve of the present invention
The sequence of adjusting method part step can be exchanged with each other according to actual needs or part steps therein also can be omitted
Or it deletes.The initial opening method of adjustment of the electric expansion valve can be applicable in above-mentioned controller 12, below will be to shown in Fig. 2
Detailed process be described in detail.
Step S101 obtains initial opening of the electric expansion valve 2 in electricity operation on the air conditioner 1.
In the present embodiment, controller 12 obtains the initial opening of the electric expansion valve 2 in electricity operation on air conditioner 1.
Step S102, obtain the air conditioner 1 it is stable when operating parameter.
In the present embodiment, controller 12 after electricity operation, carries out the real time execution parameter of air conditioner 1 on air conditioner 1
Monitoring, when real time execution parameter does not change, shows that air conditioner 1 has run on stable state, real time execution ginseng at this time
Number is the operating parameter when air conditioner 1 is stable.
In the present embodiment, which includes the average aperture P of electric expansion valve 2x, system high pressure saturation temperature TH、
System low-voltage saturation temperature TLAnd degree of supercooling Δ T.Wherein, the average aperture P of electric expansion valve 2xIt is electric expansion valve 2 from starting
The average value of aperture when stage reaches stable state；System high pressure saturation temperature THRefer to the corresponding saturation temperature of system high pressure
It spends, the corresponding relationship of system high pressure and saturation temperature is stored in controller 12, controller 12 is examined according to first pressure sensor 6
The system high pressure of survey can obtain the corresponding saturation temperature of system high pressure；System low-voltage saturation temperature TLRefer to that system low-voltage is corresponding
Saturation temperature, the corresponding relationship of system low-voltage and saturation temperature is stored in controller 12, controller 12 is according to second pressure
The system low-voltage that sensor 7 detects can obtain the corresponding saturation temperature of system low-voltage；Degree of supercooling Δ T is system high pressure saturation
Temperature THDifference between the outlet pipe temperature of condenser 3, the system low-voltage saturation temperature T that controller 12 will acquireLWith condenser
Degree of supercooling Δ T can be obtained in 3 outlet pipe temperature after subtracting each other.
Step S103, obtain the air conditioner 1 it is stable when the electric expansion valve 2 stabilization aperture.
In the present embodiment, when controller 12 judges that air conditioner 1 runs on stable state, electric expansion valve 2 is obtained
Current aperture that is to say the stabilization aperture of electric expansion valve 2.
Step S104 determines the refrigerant charging grade of the air conditioner 1 according to the operating parameter.
In the present embodiment, controller 12 is according to the average aperture P of electric expansion valve 2x, system high pressure saturation temperature TH, be
Unite low pressure saturation temperature TLAnd degree of supercooling Δ T judges the refrigerant charging grade of air conditioner 1.Step S104 is specifically included:
Work as Px>k1And TH≤Ta+m1And TL≤Tb-n1And Δ T≤h1When, determine that the refrigerant charging grade is the first estate, wherein
k1For the first default aperture, TaFor condensation side environment temperature, m1For the first preset temperature, TbFor evaporation side environment temperature, n1It is
Two preset temperatures, h1For third preset temperature；Work as k2≤Px≤k1And Ta+m1<TH≤Ta+m2And Tb-n1<TL≤Tb-n2And h1<ΔT
≤h2When, determine that the refrigerant charging grade is the second grade, wherein k2For the second default aperture, m2For the 4th default temperature
Degree, n2For the 5th preset temperature, h2For the 6th preset temperature；Work as k3≤Px<k2And Ta+m2<TH<Ta+m3And Tb-n2<TL<Tb-n3And
h2<ΔT<h3When, determine that the refrigerant charging grade is the tertiary gradient, wherein k3Aperture, m are preset for third3It is pre- for the 7th
If temperature, n3For the 8th preset temperature, h3For the 9th preset temperature；Work as Px<k3And TH≥Ta+m3And TL≥Tb-n3And h2≥h3When,
Determine that the refrigerant charging grade is the fourth estate.
In the present embodiment, the first estate can be set as " charging amount is few ", the second grade is " charging amount is suitable ", third etc.
Grade is " charging amount is more ", and the fourth estate is " charging amount is seriously more ", the first default aperture k1For 350 steps, the second default aperture k2For
150 steps, third preset aperture k3For 100 steps, the first preset temperature m1It is 10 DEG C, the second preset temperature n1It is 12 DEG C, third is default
Temperature h1It is 2 DEG C, the 4th preset temperature m2It is 13 DEG C, the 5th preset temperature n2It is 8 DEG C, the 6th preset temperature h2It is 3 DEG C, the 7th
Preset temperature m3It is 18 DEG C, the 8th preset temperature n3It is 5 DEG C, the 9th preset temperature h3It is 5 DEG C, then operation shown in Fig. 3 can be obtained
The corresponding relationship of parameter and refrigerant charging grade, after operating parameter of the controller 12 when obtaining 1 stable operation of air conditioner, ginseng
According to corresponding relationship shown in Fig. 3, refrigerant charging grade can be determined.
Step S105 adjusts the initial opening according to the refrigerant charging grade and the stable aperture, obtains just
Beginning aperture adjusted value, so that the initial opening electric expansion valve 2 starts next time when is the initial opening adjusted value.
As shown in figure 4, step S105 includes following sub-step:
Sub-step S1051 calculates the difference between the initial opening and the stable aperture.
In this example, it is assumed that the initial opening of electric expansion valve 2 is P1, the stabilization aperture of electric expansion valve 2 is P2,
Then controller 12 is according to initial opening P1With stablize aperture P2Difference P can be calculated2-P1。
Sub-step S1052 calculates the initial opening adjusted value according to the refrigerant charging grade and the difference.
In the present embodiment, the first mapping table and the second mapping table are prestored in the air conditioner 1, wherein
The first mapping table record has the corresponding relationship of refrigerant charging grade and regulation coefficient, second mapping table
Record has initial opening and stablizes the corresponding relationship of the difference and adjustment a reference value between aperture.Sub-step S1052 is specifically wrapped
It includes: determining the corresponding regulation coefficient of the refrigerant charging grade in first mapping table, it is corresponding described second
The corresponding adjustment a reference value of the difference is determined in relation table, according to described in the regulation coefficient and adjustment a reference value calculating
Initial opening adjusted value.
In the present embodiment, " charging amount is few " corresponding regulation coefficient μ is preferably " 0 " in refrigerant charging grade；" filling
Amount is suitable " corresponding regulation coefficient μ is preferably " 1 "；The value range of " charging amount is more " corresponding regulation coefficient μ be [1.05,
1.1], preferably " 1.05 "；The value range of " charging amount is seriously more " corresponding regulation coefficient μ be (1.1,1.2], preferably
"1.2"；In this way, available first mapping table shown in fig. 5.
In the present embodiment, difference P is set2-P1When less than or equal to " 0 ", corresponding adjustment a reference value Δ P is preferably
"0"；Difference P2-P1When greater than " 0 " and being less than or equal to " 50 ", the value range of corresponding adjustment a reference value Δ P is [10,20],
Preferably " 20 "；Difference P2-P1When greater than " 50 " and being less than or equal to " 100 ", the value range of corresponding adjustment a reference value Δ P
For (20,40], preferably 40；Difference P2-P1When greater than " 100 ", it is corresponding adjustment a reference value Δ P value range be (40,
60], preferably 60；In this way, available second mapping table shown in fig. 6.
The controller 12 obtains the corresponding adjustment system of refrigerant charging grade in the first mapping table according to figure 5
It, can be according to formula P after second mapping table several and according to figure 6 obtains the corresponding adjustment a reference value of difference1'=
P1- μ * Δ P calculates the initial opening adjusted value, wherein P1' it is the initial opening adjusted value, P1For the electric expansion valve
2 initial opening, μ are the regulation coefficient, and Δ P is the adjustment a reference value.As it can be seen that when refrigerant charge is on the low side, it is empty
It adjusts device 1 substantially without time liquid risk, therefore does not need amendment initial opening；When refrigerant charge is excessive, initial opening P1With it is steady
Determine aperture P2Between difference it is bigger, the actuation time of electric expansion valve 2 is longer, return liquid risk it is bigger.Therefore, it adjusts
Initial opening P1When, refrigerant charge is more, and regulation coefficient μ is bigger, initial opening P1With stablize aperture P2Between difference get over
Greatly, adjustment a reference value Δ P also should be bigger, with this come the flow of electric expansion valve 2 when reducing electricity operation on air conditioner 1 and when stablizing
Between, reduce back liquid risk.In this way, controller 12 will control electric expansion valve 2 when the upper electricity operation next time of air conditioner 1
Initial opening is initial opening adjusted value, and the initial opening for realizing electric expansion valve 2 is adaptive according to refrigerant charge progress
It should adjust, and no longer be fixed value.
It should be noted that in practice, controller 12 is when adjusting the initial opening of electric expansion valve 2, electronic expansion
The initial opening of valve 2 can not be turned down unlimitedly, be easy to cause electric expansion valve 2 not open normally, influence air conditioner 1
It works normally.Therefore, in the present embodiment, a given threshold is previously stored in controller 12, which is described
The minimum value of initial opening adjusted value in other words when adjusting the initial opening of electric expansion valve 2, needs to guarantee to obtain
Initial opening adjusted value cannot be below the given threshold, if be lower than the given threshold, using the given threshold as this
Initial opening adjusted value.For example, the given threshold can be Pmin+ A, wherein PminIt is opened for the minimum of electric expansion valve 2
Degree, determine that A is preset value by 2 self-characteristic of electric expansion valve, can in [30,50] range value, preferably 30.Controller
12 are calculating initial opening adjusted value P1' after, it is also necessary to further judge initial opening adjusted value P1' whether meet P1′≥
Pmin+ A, if not satisfied, then by initial opening adjusted value P1' it is determined as Pmin+ A, to guarantee initial opening adjusted value P1' most
Small value is given threshold Pmin+A。
Fig. 7 is please referred to, is that the initial opening of electric expansion valve provided by the embodiment of the present invention adjusts the function of device 13
Module diagram.It should be noted that the initial opening of electric expansion valve described in the embodiment of the present invention adjusts device 13, base
Present principles and the technical effect of generation are identical as preceding method embodiment, to briefly describe, do not refer to part in the present embodiment, can
With reference to the corresponding contents of preceding method embodiment.The initial opening adjustment device 13 of the electric expansion valve can be applied above-mentioned
In controller 12 comprising initial opening obtains module 14, parameter acquisition module 15, stable aperture and obtains module 16, filling etc.
Grade determining module 17 and initial opening adjust module 18.
It is appreciated that above-mentioned initial opening obtain module 14, parameter acquisition module 15, stablize aperture obtain module 16,
Filling level determination module 17 and initial opening adjustment module 18 can be the software function module being stored in memory 11 and
Computer program, and can be executed by controller 12.
The initial opening obtains module 14 for obtaining the electric expansion valve 2 in electricity operation on the air conditioner 1
Initial opening.
It is appreciated that the initial opening, which obtains module 14, can execute above-mentioned steps S101.
The parameter acquisition module 15 be used for obtain the air conditioner 1 it is stable when operating parameter.
It is appreciated that the parameter acquisition module 15 can execute above-mentioned steps S102.
The stable aperture obtain module 16 be used to obtain the air conditioner 1 it is stable when the electric expansion valve 2
Stablize aperture.
It is appreciated that the stable aperture, which obtains module 16, can execute above-mentioned steps S103.
The filling level determination module 17 is used to determine the refrigerant charging of the air conditioner 1 according to the operating parameter
Grade.
In the present embodiment, the operating parameter includes the average aperture P of the electric expansion valve 2x, system high pressure saturation
Temperature TH, system low-voltage saturation temperature TLAnd degree of supercooling Δ T, the filling level determination module 17 are specifically used for working as Px>k1And TH
≤Ta+m1And TL≤Tb-n1And Δ T≤h1When, determine that the refrigerant charging grade is the first estate, wherein k1It is pre- for first
If aperture, TaFor condensation side environment temperature, m1For the first preset temperature, TbFor evaporation side environment temperature, n1For the second default temperature
Degree, h1For third preset temperature；Work as k2≤Px≤k1And Ta+m1<TH≤Ta+m2And Tb-n1<TL≤Tb-n2And h1<ΔT≤h2When,
Determine that the refrigerant charging grade is the second grade, wherein k2For the second default aperture, m2For the 4th preset temperature, n2It is
Five preset temperatures, h2For the 6th preset temperature；Work as k3≤Px<k2And Ta+m2<TH<Ta+m3And Tb-n2<TL<Tb-n3And h2<ΔT<h3
When, determine that the refrigerant charging grade is the tertiary gradient, wherein k3Aperture, m are preset for third3For the 7th preset temperature, n3
For the 8th preset temperature, h3For the 9th preset temperature；Work as Px<k3And TH≥Ta+m3And TL≥Tb-n3And h2≥h3When, determine described in
Refrigerant charging grade is the fourth estate.
It is appreciated that the filling level determination module 17 can execute above-mentioned steps S104.
The initial opening adjustment module 18 is used to adjust institute according to the refrigerant charging grade and the stable aperture
Initial opening is stated, initial opening adjusted value is obtained, so that the initial opening electric expansion valve 2 starts next time when is described
Initial opening adjusted value.
It is appreciated that the initial opening adjustment module 18 can execute above-mentioned steps S105.
As shown in figure 8, the initial opening adjustment module 18 includes difference calculating module 19 and adjustment calculation module 20.
The difference calculating module 19 is used to calculate the difference between the initial opening and the stable aperture.
It is appreciated that the difference calculating module 19 can execute above-mentioned steps S1051.
The adjustment calculation module 20 is used to calculate according to the refrigerant charging grade and the difference described first
Beginning aperture adjusted value.
In the present embodiment, the first mapping table and the second mapping table are prestored in the air conditioner 1, wherein
The first mapping table record has the corresponding relationship of refrigerant charging grade and regulation coefficient, second mapping table
Record has initial opening and stablizes the corresponding relationship of the difference and adjustment a reference value between aperture.The adjustment calculation module 20
It is corresponding described second for determining the corresponding regulation coefficient of the refrigerant charging grade in first mapping table
The corresponding adjustment a reference value of the difference is determined in relation table, and calculates institute according to the regulation coefficient and the adjustment a reference value
Initial opening adjusted value is stated, specifically, the adjustment calculation module 20 is used for according to formula P1'=P1Described in-μ * Δ P is calculated
Initial opening adjusted value, wherein P1' it is the initial opening adjusted value, P1For the initial opening of the electric expansion valve 2, μ is
The regulation coefficient, Δ P are the adjustment a reference value.
It is appreciated that the adjustment calculation module 20 can execute above-mentioned steps S1052.
In conclusion initial opening method of adjustment, device and the air-conditioning of electric expansion valve provided by the embodiment of the present invention
Device, by obtaining initial opening of the electric expansion valve in electricity operation on the air conditioner；Obtain the air conditioner operation
Operating parameter when stablizing；Obtain the air conditioner it is stable when the electric expansion valve stabilization aperture；According to the fortune
Row parameter determines the refrigerant charging grade of the air conditioner；According to the refrigerant charging grade and the stable aperture adjustment
The initial opening obtains initial opening adjusted value, so that the initial opening electric expansion valve starts next time when is institute
State initial opening adjusted value.The application is according to electronic expansion when the refrigerant charging grade and air conditioner stable operation of air conditioner
The stabilization aperture of valve is adjusted the initial opening of electric expansion valve, realizes the initial opening of electric expansion valve to refrigerant
Charging amount it is adaptive, initial opening is no longer fixed value, avoid when refrigerant charging excess, electric expansion valve just
Beginning aperture is excessive to cause air conditioner that liquid phenomenon occurs back, to effectively reduce back liquid risk, promotes the reliability of air conditioner.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (12)
1. a kind of initial opening method of adjustment of electric expansion valve is applied to air conditioner (1), the air conditioner (1) includes electronics
Expansion valve (2), which is characterized in that the described method includes:
Obtain initial opening of the electric expansion valve (2) in electricity operation on the air conditioner (1)；
Obtain the air conditioner (1) it is stable when operating parameter；
Obtain the air conditioner (1) it is stable when the electric expansion valve (2) stabilization aperture；
The refrigerant charging grade of the air conditioner (1) is determined according to the operating parameter；
The initial opening is adjusted according to the refrigerant charging grade and the stable aperture, obtains initial opening adjusted value,
So that the initial opening electric expansion valve (2) starts next time when is the initial opening adjusted value.
2. the initial opening method of adjustment of electric expansion valve according to claim 1, which is characterized in that described in the foundation
The step of refrigerant charging grade and the stable aperture adjust the initial opening, obtain initial opening adjusted value include:
Calculate the difference between the initial opening and the stable aperture；
The initial opening adjusted value is calculated according to the refrigerant charging grade and the difference.
3. the initial opening method of adjustment of electric expansion valve according to claim 2, which is characterized in that the air conditioner
(1) the first mapping table and the second mapping table are prestored in, wherein the first mapping table record has refrigerant
The corresponding relationship of grade and regulation coefficient is filled, the second mapping table record has initial opening and stablizes between aperture
The corresponding relationship of difference and adjustment a reference value, it is described described initial according to the refrigerant charging grade and difference calculating
The step of aperture adjusted value includes:
The corresponding regulation coefficient of the refrigerant charging grade is determined in first mapping table；
The corresponding adjustment a reference value of the difference is determined in second mapping table；
The initial opening adjusted value is calculated according to the regulation coefficient and the adjustment a reference value.
4. the initial opening method of adjustment of electric expansion valve according to claim 3, which is characterized in that described in the foundation
Regulation coefficient and the adjustment a reference value calculate the step of initial opening adjusted value and include:
According to formula P1'=P1- μ * Δ P calculates the initial opening adjusted value, wherein P1' it is the initial opening adjusted value, P1
For the initial opening of the electric expansion valve (2), μ is the regulation coefficient, and Δ P is the adjustment a reference value.
5. the initial opening method of adjustment of electric expansion valve according to claim 1, which is characterized in that the operating parameter
Average aperture P including the electric expansion valve (2)x, system high pressure saturation temperature TH, system low-voltage saturation temperature TLAnd supercooling
Δ T is spent, the step of refrigerant charging grade that the air conditioner (1) is determined according to the operating parameter includes:
Work as Px>k1And TH≤Ta+m1And TL≤Tb-n1And Δ T≤h1When, determine that the refrigerant charging grade is the first estate,
In, k1For the first default aperture, TaFor condensation side environment temperature, m1For the first preset temperature, TbFor evaporation side environment temperature, n1For
Second preset temperature, h1For third preset temperature；
Work as k2≤Px≤k1And Ta+m1<TH≤Ta+m2And Tb-n1<TL≤Tb-n2And h1<ΔT≤h2When, determine that the refrigerant fills
Note grade is the second grade, wherein k2For the second default aperture, m2For the 4th preset temperature, n2For the 5th preset temperature, h2For
6th preset temperature；
Work as k3≤Px<k2And Ta+m2<TH<Ta+m3And Tb-n2<TL<Tb-n3And h2<ΔT<h3When, determine described refrigerant charging etc.
Grade is the tertiary gradient, wherein k3Aperture, m are preset for third3For the 7th preset temperature, n3For the 8th preset temperature, h3It is the 9th
Preset temperature；
Work as Px<k3And TH≥Ta+m3And TL≥Tb-n3And h2≥h3When, determine that the refrigerant charging grade is the fourth estate.
6. the initial opening method of adjustment of electric expansion valve according to claim 1-5, which is characterized in that described
The minimum value of initial opening adjusted value is given threshold.
7. a kind of initial opening of electric expansion valve adjusts device, it is applied to air conditioner (1), the air conditioner (1) includes electronics
Expansion valve (2), which is characterized in that described device includes:
Initial opening obtains module (14), for obtaining the electric expansion valve (2) in electricity operation on the air conditioner (1)
Initial opening；
Parameter acquisition module (15), for obtain the air conditioner (1) it is stable when operating parameter；
Stablize aperture and obtain module (16), for obtain the air conditioner (1) it is stable when the electric expansion valve (2) it is steady
Determine aperture；
It fills level determination module (17), for determining the refrigerant charging etc. of the air conditioner (1) according to the operating parameter
Grade；
Initial opening adjusts module (18), for described initial according to the refrigerant charging grade and the stable aperture adjustment
Aperture obtains initial opening adjusted value, so that the initial opening electric expansion valve (2) starts next time when is described initial
Aperture adjusted value.
8. the initial opening of electric expansion valve according to claim 7 adjusts device, which is characterized in that the initial opening
Adjusting module (18) includes:
Difference calculating module (19), for calculating the difference between the initial opening and the stable aperture；
Adjustment calculation module (20), for calculating the initial opening according to the refrigerant charging grade and the difference
Adjusted value.
9. the initial opening of electric expansion valve according to claim 8 adjusts device, which is characterized in that the air conditioner
(1) the first mapping table and the second mapping table are prestored in, wherein the first mapping table record has refrigerant
The corresponding relationship of grade and regulation coefficient is filled, the second mapping table record has initial opening and stablizes between aperture
The corresponding relationship of difference and adjustment a reference value；
The adjustment calculation module (20) is used to determine the refrigerant charging grade pair in first mapping table
The regulation coefficient answered determines the corresponding adjustment a reference value of the difference in second mapping table, and according to the tune
Integral coefficient and the adjustment a reference value calculate the initial opening adjusted value.
10. the initial opening of electric expansion valve according to claim 9 adjusts device, which is characterized in that the adjusted value
Computing module (20) is used for according to formula P1'=P1- μ * Δ P calculates the initial opening adjusted value, wherein P1' it is described initial
Aperture adjusted value, P1For the initial opening of the electric expansion valve (2), μ is the regulation coefficient, and Δ P is the adjustment benchmark
Value.
11. the initial opening of electric expansion valve according to claim 7 adjusts device, which is characterized in that the operation ginseng
Number includes the average aperture P of the electric expansion valve (2)x, system high pressure saturation temperature TH, system low-voltage saturation temperature TLAnd mistake
Cold degree Δ T；
The filling level determination module (17) is for working as Px>k1And TH≤Ta+m1And TL≤Tb-n1And Δ T≤h1When, determine institute
Stating refrigerant charging grade is the first estate, wherein k1For the first default aperture, TaFor condensation side environment temperature, m1It is pre- for first
If temperature, TbFor evaporation side environment temperature, n1For the second preset temperature, h1For third preset temperature；Work as k2≤Px≤k1And Ta+m1<
TH≤Ta+m2And Tb-n1<TL≤Tb-n2And h1<ΔT≤h2When, determine that the refrigerant charging grade is the second grade, wherein k2
For the second default aperture, m2For the 4th preset temperature, n2For the 5th preset temperature, h2For the 6th preset temperature；Work as k3≤Px<k2And
Ta+m2<TH<Ta+m3And Tb-n2<TL<Tb-n3And h2<ΔT<h3When, determine that the refrigerant charging grade is the tertiary gradient,
In, k3Aperture, m are preset for third3For the 7th preset temperature, n3For the 8th preset temperature, h3For the 9th preset temperature；Work as Px<k3
And TH≥Ta+m3And TL≥Tb-n3And h2≥h3When, determine that the refrigerant charging grade is the fourth estate.
12. a kind of air conditioner (1), which is characterized in that the air conditioner (1) includes controller (12) and is stored with computer program
Memory (11), the computer program reads by the controller (12) and when running, realize as claim 1-5 is any
Method described in.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810966692.3A CN109084445B (en) | 2018-08-23 | 2018-08-23 | A kind of initial opening method of adjustment, device and the air conditioner of electric expansion valve |
| PCT/CN2019/093741 WO2020038113A1 (en) | 2018-08-23 | 2019-06-28 | Method and device for adjusting initial opening degree of electronic expansion valve, and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810966692.3A CN109084445B (en) | 2018-08-23 | 2018-08-23 | A kind of initial opening method of adjustment, device and the air conditioner of electric expansion valve |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110500831A (en) * | 2019-08-23 | 2019-11-26 | 珠海格力电器股份有限公司 | Equipment steady-state operation control method, device, storage medium and system |
| WO2020038113A1 (en) * | 2018-08-23 | 2020-02-27 | 宁波奥克斯电气股份有限公司 | Method and device for adjusting initial opening degree of electronic expansion valve, and air conditioner |
| CN113959051A (en) * | 2021-10-08 | 2022-01-21 | 青岛海尔空调电子有限公司 | Control method for air conditioner and air conditioner |
| CN114152001A (en) * | 2021-10-20 | 2022-03-08 | 山东和同信息科技股份有限公司 | High-precision control method and system for stepping electronic expansion valve |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1786602A (en) * | 2004-12-06 | 2006-06-14 | 三星电子株式会社 | Multi-air conditioning system and valve opening controlling method thereof |
| CN104676996A (en) * | 2015-03-19 | 2015-06-03 | 珠海格力电器股份有限公司 | Method and device for generating initial opening degree of electronic expansion valve |
| CN104848487A (en) * | 2015-05-14 | 2015-08-19 | 珠海格力电器股份有限公司 | Intelligent maintenance control system and method |
| CN105783193A (en) * | 2016-04-13 | 2016-07-20 | Tcl空调器(中山)有限公司 | Initial opening degree control method and device for electronic expansion valve |
| KR101710941B1 (en) * | 2015-12-18 | 2017-02-28 | 서울대학교산학협력단 | Method for detecting shortage of refrigerant in heat pump system |
| CN106556099A (en) * | 2015-09-25 | 2017-04-05 | 约克广州空调冷冻设备有限公司 | The control method of the electric expansion valve of the indoor set of multi-online air-conditioning system |
| CN107702270A (en) * | 2017-10-11 | 2018-02-16 | 珠海格力电器股份有限公司 | Electronic expansion valve control method and device and air conditioner |
| CN108088041A (en) * | 2017-12-06 | 2018-05-29 | 广东美的制冷设备有限公司 | Control method, radiation air-conditioner and the storage medium of electric expansion valve |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018017479A (en) * | 2016-07-29 | 2018-02-01 | 株式会社富士通ゼネラル | Air conditioner |
| CN106322870B (en) * | 2016-11-14 | 2019-04-05 | 广东美的暖通设备有限公司 | The control method and control device of electric expansion valve, air conditioner heat pump system |
| CN109084445B (en) * | 2018-08-23 | 2019-10-29 | 宁波奥克斯电气股份有限公司 | A kind of initial opening method of adjustment, device and the air conditioner of electric expansion valve |
-
2018
- 2018-08-23 CN CN201810966692.3A patent/CN109084445B/en active Active
-
2019
- 2019-06-28 WO PCT/CN2019/093741 patent/WO2020038113A1/en active Application Filing
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1786602A (en) * | 2004-12-06 | 2006-06-14 | 三星电子株式会社 | Multi-air conditioning system and valve opening controlling method thereof |
| CN104676996A (en) * | 2015-03-19 | 2015-06-03 | 珠海格力电器股份有限公司 | Method and device for generating initial opening degree of electronic expansion valve |
| CN104848487A (en) * | 2015-05-14 | 2015-08-19 | 珠海格力电器股份有限公司 | Intelligent maintenance control system and method |
| CN106556099A (en) * | 2015-09-25 | 2017-04-05 | 约克广州空调冷冻设备有限公司 | The control method of the electric expansion valve of the indoor set of multi-online air-conditioning system |
| KR101710941B1 (en) * | 2015-12-18 | 2017-02-28 | 서울대학교산학협력단 | Method for detecting shortage of refrigerant in heat pump system |
| CN105783193A (en) * | 2016-04-13 | 2016-07-20 | Tcl空调器(中山)有限公司 | Initial opening degree control method and device for electronic expansion valve |
| CN107702270A (en) * | 2017-10-11 | 2018-02-16 | 珠海格力电器股份有限公司 | Electronic expansion valve control method and device and air conditioner |
| CN108088041A (en) * | 2017-12-06 | 2018-05-29 | 广东美的制冷设备有限公司 | Control method, radiation air-conditioner and the storage medium of electric expansion valve |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020038113A1 (en) * | 2018-08-23 | 2020-02-27 | 宁波奥克斯电气股份有限公司 | Method and device for adjusting initial opening degree of electronic expansion valve, and air conditioner |
| CN110500831A (en) * | 2019-08-23 | 2019-11-26 | 珠海格力电器股份有限公司 | Equipment steady-state operation control method, device, storage medium and system |
| CN113959051A (en) * | 2021-10-08 | 2022-01-21 | 青岛海尔空调电子有限公司 | Control method for air conditioner and air conditioner |
| CN113959051B (en) * | 2021-10-08 | 2023-08-15 | 青岛海尔空调电子有限公司 | Control method for air conditioner and air conditioner |
| CN114152001A (en) * | 2021-10-20 | 2022-03-08 | 山东和同信息科技股份有限公司 | High-precision control method and system for stepping electronic expansion valve |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020038113A1 (en) | 2020-02-27 |
| CN109084445B (en) | 2019-10-29 |
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