CN110530084A - The control method and device of electric expansion valve - Google Patents
The control method and device of electric expansion valve Download PDFInfo
- Publication number
- CN110530084A CN110530084A CN201910869202.2A CN201910869202A CN110530084A CN 110530084 A CN110530084 A CN 110530084A CN 201910869202 A CN201910869202 A CN 201910869202A CN 110530084 A CN110530084 A CN 110530084A
- Authority
- CN
- China
- Prior art keywords
- controller
- expansion valve
- electric expansion
- signal
- control method
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The present invention provides a kind of control method and device of electric expansion valve, control method includes: that the first controller powers on；Obtain the ac signal of first controller；First controller converts DC signal for the ac signal according to the ac signal and is input to second controller；The second controller starts according to the DC signal；The second controller is opened according to setting valve step control electric expansion valve.The mating reaction that the present invention passes through external the first controller and second controller, ac signal is set to be converted to DC signal, stable electric signal is provided for the unlatching work of electric expansion valve, and the unlatching of delivery valve step control instruction control electric expansion valve, thus, the unlatching of the electric expansion valve in equipment can be controlled under the premise of not starting equipment (such as air conditioner) complete machine with electric expansion valve.
Description
Technical field
The present invention relates to the technical fields of refrigeration equipment, a kind of control method in particular to electric expansion valve and
Device.
Background technique
Expansion valve is the important component in refrigeration system, such as in air conditioner, be generally mounted to liquid storage cylinder and evaporator it
Between, and with the variation of Load Evaporator, change the aperture of valve to control the flow of refrigerant, prevents evaporator area
Under-utilized and engine knock phenomenon.Currently, opening the mode (such as electric expansion valve) of expansion valve for example in field of air conditioning, lead to
It is often by the way that after starting outdoor unit of the air conditioner, signal picker is started to work, and collected pressure signal and temperature are believed
Number it is transferred to controller, output phase answers pulse voltage signal to the coil (driver) of electric expansion valve after processing, with driving
Electric expansion valve is opened.
However, generally requiring to vacuumize the liquid feeding into liquid storage cylinder in the production process of air conditioner, but can not start at this time
Outdoor unit of the air conditioner, controller just can not acquire pressure or temperature signal, electric expansion valve unlatching is just unable to control, because of electronics
Expansion valve is non-open state, to cause to vacuumize slowly, influences the production efficiency of air conditioner.
Summary of the invention
In view of this, the present invention is intended to provide a kind of can not start the equipment (such as air conditioner) with electric expansion valve
In the case where complete machine, the control method and device for the electric expansion valve for opening the electric expansion valve.
For this purpose, an aspect of of the present present invention provides a kind of control method of electric expansion valve comprising: on the first controller
Electricity；Obtain the ac signal of first controller；First controller is according to the ac signal by the exchange
Electric signal is converted into DC signal and is input to second controller；The second controller is opened according to the DC signal
It is dynamic；The second controller is opened according to setting valve step control electric expansion valve.
In in one aspect of the invention, by the mating reaction of external the first controller and second controller, make to exchange
Electric signal is converted to DC signal, provides stable electric signal, and delivery valve step control for the unlatching work of electric expansion valve
The unlatching of instruction control electric expansion valve, thus, it is possible to whole not starting the equipment (such as air conditioner) with electric expansion valve
Under the premise of machine, the unlatching of the electric expansion valve in equipment is controlled, so that the rate vacuumized by electric expansion valve is improved, with
Promote the production efficiency with the equipment (such as air conditioner) of the electric expansion valve.
In addition, in the control method of electric expansion valve according to the present invention, optionally, the second controller according to
Setting valve step control electric expansion valve unlatching includes: to obtain the setting valve step；The second controller is according to the setting valve
Step output pulse signal and the electromagnetic coil for being input to the electric expansion valve；The electromagnetic coil is opened according to the pulse signal
Open the electric expansion valve.Second controller can pass through output pulse signal control under the conditioning of setting valve step as a result,
The unlatching of electric expansion valve processed, without improving to electronic expansion valve controls by the temperature and air pressure impacts in environment
Convenience.
In addition, in the control method of electric expansion valve according to the present invention, optionally, the second controller according to
The setting valve step output pulse signal and be input to the electromagnetic coil of the electric expansion valve include: the second controller into
The judgement of the row setting valve step: when setting valve step is zero, second controller first pulse signal of output is simultaneously defeated
Enter the electromagnetic coil to the electric expansion valve；When setting valve step is not equal to zero, the second controller output
Second pulse signal and the electromagnetic coil for being input to the electric expansion valve.As a result, according to the number of different setting valve steps
Value, adjustable electric expansion valve reaches different apertures, to meet different aperture demands.
In addition, optionally, first pulse signal is in the control method of electric expansion valve according to the present invention
Corresponding impulse signal value when making the electronic expansion valve opening maximum.In this case, even if setting valve step is zero,
It can guarantee that electric expansion valve can reach maximum opening, to be conducive to equipment (such as the air-conditioning with the electric expansion valve
Device) the rate vacuumized raising, with the Workshop Production efficiency etc. of further lifting means.
In addition, in the control method of electric expansion valve according to the present invention, optionally, second pulse signal with
The setting valve walks proportional.In such a case, it is possible to according to the size of setting valve step, it is corresponding to export pulse letter
Number size so that electric expansion valve reaches corresponding aperture.
In addition, optionally, the electromagnetic coil is according to institute in the control method of electric expansion valve according to the present invention
Stating pulse signal and opening the electric expansion valve is described in the electromagnetic coil is opened according to the pulse signal with setting speed
Electric expansion valve.Thus, it is possible to the speed degree that electric expansion valve is opened be controlled by setting speed, to ensure fully and pacify
Electric expansion valve is effectively opened entirely.
In addition, optionally, the setting speed is v in the control method of electric expansion valve according to the present invention,
In, 28ms/pls≤v≤35ms/pls.Preferably, the setting speed v=32ms/pls.Under normal circumstances, work as setting speed
When too small, the time for opening electric expansion valve needs is longer, will affect production efficiency；When setting speed is excessive, electronics is opened
The dynamics of expansion valve is larger, is easy to cause to damage to electric expansion valve.Therefore, by controlling in a certain range setting speed
Or certain numerical value, the excessive damage of electric expansion valve can be prevented, electric expansion valve is promoted while guaranteeing production efficiency
Service life.
In addition, optionally, the ac signal is to hand in the control method of electric expansion valve according to the present invention
Galvanic electricity pressure, the DC signal are DC voltage.Thus, it is possible to more directly form the first controller and second controller etc.
Connection between component.
In addition, in the control method of electric expansion valve according to the present invention, optionally, first controller according to
It includes: described in progress that the ac signal, which converts DC signal for the ac signal and is input to second controller,
The judgement of alternating voltage exports the alternating voltage for DC voltage when the alternating voltage, which meets first, to impose a condition.
As a result, by first impose a condition setting, can alternating voltage meet some requirements it is lower be just converted to DC voltage, from
And promote the stability etc. of the DC voltage of conversion.
In addition, optionally, described first, which imposes a condition, is in the control method of electric expansion valve according to the present invention
The alternating voltage U1Meet 110V≤U1≤250V.Preferably, it described first imposes a condition as the alternating voltage U1Meet
220V≤U1≤250V.In such a case, it is possible to make the common household electricity pressure of the alternating voltage for being supplied to controller, mention
Rise the property and validity easy to use of control device.
In addition, in the control method of electric expansion valve according to the present invention, optionally, the second controller according to
The DC signal starting includes: the judgement for carrying out the DC voltage, is imposed a condition when the DC voltage meets second
When, the second controller starting.The setting to impose a condition as a result, by second, can meet certain item in DC voltage
Just start second controller under part, so that the stability of lifting controller work, prevents voltage excessive or too low to the second control
Device damages.
In addition, optionally, described second, which imposes a condition, is in the control method of electric expansion valve according to the present invention
The DC voltage U2Meet 10V≤U2≤15V.Preferably, it described second imposes a condition as the DC voltage U2=12V.By
This, can provide stable voltage rating with electron expansion valve, to prevent overtension from burning out electric expansion valve or brownout
The generation for the case where making electric expansion valve cisco unity malfunction guarantees the stability of electric expansion valve opening process.
Another aspect provides a kind of control devices of electric expansion valve characterized by comprising the first control
Device and second controller processed, wherein first controller is connected with second controller, the second controller and the electricity
Sub- expansion valve communication connection；First controller is used to obtain the ac signal of first controller, is also used to basis
The ac signal converts DC signal for the ac signal and is input to second controller；Second control
Device, which is used to control the second controller according to the DC signal, to be started, and is also used to according to setting valve step control electronic expansion
Valve is opened.Thus, it is possible to the external controller component of electric expansion valve be formed, so as to not start with the electronic expansion
Under the premise of equipment (such as air conditioner) complete machine of valve, the unlatching of the electric expansion valve in equipment is controlled, passes through electricity to improve
The rate that sub- expansion valve vacuumizes, to promote the production efficiency of the equipment (such as air conditioner) with the electric expansion valve.
In accordance with the invention it is possible to which providing a kind of can not start equipment (such as air conditioner) complete machine with electric expansion valve
In the case where, the control method and device for the electric expansion valve for opening the electric expansion valve, to promote control electronic expansion
The convenience that valve is opened has the electric expansion valve to improve the rate that equipment is vacuumized by electric expansion valve to be promoted
Equipment (such as air conditioner) production efficiency.
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 mode 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 flow diagram of the control method of electric expansion valve involved in embodiments of the present invention；
Fig. 2 is the first controller in the control method of electric expansion valve involved in embodiments of the present invention according to exchange
Electric signal converts DC signal for ac signal and is input to the flow diagram of second controller；
Fig. 3 is second controller in the control method of electric expansion valve involved in embodiments of the present invention according to direct current
The flow diagram of electric signal starting；
Fig. 4 is second controller in the control method of electric expansion valve involved in embodiments of the present invention according to setting
The flow diagram that valve step control electric expansion valve is opened；
Fig. 5 is second controller in the control method of electric expansion valve involved in embodiments of the present invention according to setting
Valve walks output pulse signal and is input to the flow diagram of the electromagnetic coil of electric expansion valve；
Fig. 6 is the operation principle schematic diagram of the control device of electric expansion valve involved in embodiments of the present invention.
Description of symbols:
The first controller of 11-, 12- second controller, 13- electromagnetic coil.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can
To be combined with each other.
The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiment.
Fig. 6 is the operation principle schematic diagram of the control device of electric expansion valve involved in embodiments of the present invention.
In the present embodiment, the control device of electric expansion valve may include: the first controller 11 and second controller
12, wherein first controller 11 is connected with second controller, and the second controller 12 and the electric expansion valve are logical
Letter connection；First controller 11 is used to obtain the ac signal of first controller, is also used to according to the exchange
Electric signal converts DC signal for the ac signal and is input to second controller 12；The second controller 12 is used
Start in controlling the second controller 12 according to the DC signal, is also used to according to setting valve step control electric expansion valve
It opens.Here, the second controller 12 is connected with the electromagnetic coil 13 of the electric expansion valve.
Thus, it is possible to form the external controller component of electric expansion valve, so as to do not start it is swollen with the electronics
Under the premise of equipment (such as air conditioner) complete machine of swollen valve, the unlatching of the electric expansion valve in equipment is controlled, is passed through to improve
The rate that electric expansion valve vacuumizes, to promote the production efficiency of the equipment (such as air conditioner) with the electric expansion valve.
Fig. 1 is the flow diagram of the control method of electric expansion valve involved in embodiments of the present invention.
Referring to Fig.1, in the present embodiment, the control method of electric expansion valve may include: that step S100: the first controls
Device 11 powers on；Step S200: the ac signal of first controller 11 is obtained；Step S300: first controller 11
DC signal is converted by the ac signal according to the ac signal and is input to second controller 12；Step
S400: the second controller 12 starts according to the DC signal；Step S500: the second controller 12 is according to setting
Valve step control electric expansion valve is opened.
As a result, in the present embodiment, by the mating reaction of the first external controller 11 and second controller 12, make
Ac signal is converted to DC signal, provides stable electric signal for the unlatching work of electric expansion valve, and delivery valve walks
Control instruction controls the unlatching of electric expansion valve, thus, it is possible to not starting equipment (such as the air-conditioning with electric expansion valve
Device) under the premise of complete machine, the unlatching of the electric expansion valve in equipment is controlled, to improve the speed vacuumized by electric expansion valve
Rate, to promote the production efficiency of the equipment (such as air conditioner) with the electric expansion valve.
In the present embodiment, in the step s 100: the first controller 11 powers on, so-called to power on, as to the first control
Device 11 provides electric signal.In some instances, it can be powered on by external power supply to the first controller 11, that is, pass through external power supply
Electric signal is provided to the first controller 11, such as is plugged on the socket of energization.In other examples, battery can also be passed through
Ac signal is provided Deng to the first controller 11.Thus, it is possible to start the first controller 11.
In the present embodiment, in step s 200: the ac signal of the first controller 11 is obtained, ac signal
Form is not particularly limited.In some instances, ac signal can be alternating voltage.In other examples, alternating current
Signal may be alternating current etc..Thus, it is possible to which different ac signal shapes is arranged according to the difference of practical application scene
Formula meets different application demands.
In the present embodiment, in step S300: the first controller 11 turns ac signal according to ac signal
It turns to DC signal and is input to second controller 12, the form of DC signal is not particularly limited.In some instances,
DC signal can be DC voltage.In other examples, DC signal may be DC current etc..As a result, may be used
Different DC signal forms is arranged, meets different application demands according to the difference of practical application scene.
Fig. 2 is the first controller 11 in the control method of electric expansion valve involved in embodiments of the present invention according to friendship
Galvanic electricity signal converts DC signal for ac signal and is input to the flow diagram of second controller 12.
In the present embodiment, it may include: step S310 in step S300 referring to Fig. 2: carrying out alternating voltage
Step S320: judgement when alternating voltage, which meets first, to impose a condition, alternating voltage is exported as DC voltage.Show some
In example, in step s 320, the first setting condition can be alternating voltage U1Meet 110V≤U1≤250V.In other examples
In, it may be alternating voltage U that first, which imposes a condition,1Meet 200V≤U1≤250V.In such a case, it is possible to make to be supplied to
The alternating voltage of controller is common household electricity pressure, such as American life voltage 110V or domestic voltage 220V
Deng thus, it is possible to the property and validity easy to use of hoisting control device.
In addition, can also include: step S330 after step S310 in step S300 in the present embodiment: when
When alternating voltage is unsatisfactory for the first setting condition, terminator.Thus, it is possible to prevent the damage too low or too high for voltage to controller
Go bad and so on.
In the present embodiment, in step S400: second controller 12 starts according to DC signal.As described above
, in some instances, DC signal can be DC voltage.In other examples, DC signal may be straight
Galvanic electricity stream etc..Thus, it is possible to which different DC signal forms is arranged, meets different according to the difference of practical application scene
Application demand, to realize the starting of second controller 12.
Fig. 3 is second controller 12 in the control method of electric expansion valve involved in embodiments of the present invention according to straight
The flow diagram of galvanic electricity signal enabling.
In the present embodiment, it may include: step S410 in step S400 referring to Fig. 3: carrying out DC voltage
Judgement, step S420: when DC voltage, which meets second, to impose a condition, second controller 1216 starts.In the step s 420,
Two, which impose a condition, is not particularly limited, and in some instances, the second setting condition can be DC voltage U2Meet 10V≤U2≤
15V.In other examples, it may be DC voltage U that second, which imposes a condition,2=12V.Thus, it is possible to electron expansion valve
Stable voltage rating is provided, prevents electric expansion valve from just to prevent overtension from burning out electric expansion valve or brownout
Often generation the case where work guarantees the stability of electric expansion valve opening process.
In addition, after the step s 410 can also include: step S430 in step S400 in the present embodiment: when
When DC voltage is unsatisfactory for the second setting condition, terminator.Thus, it is possible to prevent the damage too low or too high for voltage to controller
Go bad and so on.
In the present embodiment, in step S500: second controller 12 is opened according to setting valve step control electric expansion valve
It opens.Thus, it is possible to control unlatching electric expansion valve, to carry out vacuumizing for equipment.
Fig. 4 be in the control method of electric expansion valve involved in embodiments of the present invention second controller 12 according to setting
Determine the flow diagram that valve step control electric expansion valve is opened.
In the present embodiment, it may include: step S510 in step S500 referring to Fig. 4: obtaining setting valve step, step
Rapid S520: second controller 12 walks output pulse signal according to setting valve and is input to the electromagnetic coil of electric expansion valve, step
S530: electromagnetic coil opens electric expansion valve according to pulse signal.As a result, according to the numerical value of different setting valve steps, can adjust
Section electric expansion valve reaches different apertures, to meet different aperture demands.
In some instances, in step S510, setting valve step be can be through artificial settings, and it is silent to be also possible to device
Recognize.Thus, it is possible to meet different application demands under different application scenarios.
In the present embodiment, in step S530, electromagnetic coil, which opens electric expansion valve according to pulse signal, to be
Electromagnetic coil opens electric expansion valve according to pulse signal with setting speed.Wherein, the value of setting speed is not particularly limited.
In some instances, setting speed v, wherein 28ms/pls≤v≤35ms/pls, such as setting speed v can be 30ms/
Pls, 32ms/pls or 33ms/pls.Under normal circumstances, when setting speed is too small, open electric expansion valve need time compared with
It is long, it will affect production efficiency；When setting speed is excessive, the dynamics for opening electric expansion valve is larger, is easy to electric expansion valve
It causes to damage.Therefore, by the way that setting speed control in a certain range or certain numerical value, can guaranteed the same of production efficiency
When, the excessive damage of electric expansion valve is prevented, the service life of electric expansion valve is promoted.
Fig. 5 be in the control method of electric expansion valve involved in embodiments of the present invention second controller 12 according to setting
Determine valve step output pulse signal and is input to the flow diagram of the electromagnetic coil of electric expansion valve.
In the present embodiment, referring to Fig. 5 may include: step S521 in step S520: second controller 12 into
The judgement that setting valve of going walks), step S522: when setting valve step is zero, the first pulse signal of output of second controller 12 is simultaneously defeated
Enter the electromagnetic coil to electric expansion valve, step S523: when setting valve step not equal to zero, second controller 12 exports the second arteries and veins
It rushes signal and is input to the electromagnetic coil of electric expansion valve.As a result, according to the numerical value of different setting valve steps, adjustable electronics
Expansion valve reaches different apertures, to meet different aperture demands.
In addition, in the present embodiment, the size of the first pulse signal is not particularly limited.In some instances, first
Pulse signal can be corresponding impulse signal value when making electronic expansion valve opening maximum.For example, electronic expansion valve opening is maximum
When valve step can be 480 steps, the first pulse signal can be 540.In this case, even if setting valve step is zero,
It can guarantee that electric expansion valve can reach maximum opening, to be conducive to equipment (such as the air-conditioning with the electric expansion valve
Device) the rate vacuumized raising, with the Workshop Production efficiency etc. of further lifting means.
In the present embodiment, the size of the second pulse signal is not particularly limited.In some instances, the second pulse is believed
Number can with setting valve walk proportional.For example, the second pulse signal can be X, setting valve step can be A, and wherein A is
Integer greater than 0 and less than or equal to 480, then the proportional relationship can be X=540*A/480, wherein 480 can be electronics
Corresponding valve step when expansion valve opening maximum, 540 can be the corresponding maximum value of the second pulse signal.In other examples,
Such as when setting the value of valve step A as 160 or 240, the value of corresponding second pulse signal X can be 180 or 270, with
So that electric expansion valve is in the aperture of three molecules one or half.In such a case, it is possible to according to the big of setting valve step
Small, the size of corresponding output pulse signal is opened so as to realize in difference so that electric expansion valve reaches corresponding aperture
Under degree state, to application the electric expansion valve equipment (such as air conditioner) flow adjusting, be conducive to equipment progressive
It can test, such as refrigeration performance test etc..
The foregoing is merely better embodiments of the invention, are not intended to limit the invention, any this field skill
Art personnel, all within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in this
Within the protection scope of invention.
Claims (12)
1. a kind of control method of electric expansion valve characterized by comprising
First controller (11) powers on；
Obtain the ac signal of first controller (11)；
First controller (11) converts DC signal and defeated for the ac signal according to the ac signal
Enter to second controller (12)；
The second controller (12) starts according to the DC signal；
The second controller (12) is opened according to setting valve step control electric expansion valve.
2. the control method of electric expansion valve according to claim 1, which is characterized in that second controller (12) root
Include: according to setting valve step control electric expansion valve unlatching
Obtain the setting valve step；
The second controller (12) walks output pulse signal according to the setting valve and is input to the electricity of the electric expansion valve
Magnetic coil；
The electromagnetic coil opens the electric expansion valve according to the pulse signal.
3. the control method of electric expansion valve according to claim 2, which is characterized in that second controller (12) root
Include: according to the electromagnetic coil that the setting valve walks output pulse signal and is input to the electric expansion valve
The second controller (12) carries out the judgement of the setting valve step: when setting valve step is zero, second control
Device (12) processed exports the first pulse signal and is input to the electromagnetic coil of the electric expansion valve；When the setting valve walks not
When equal to zero, the second controller (12) exports the second pulse signal and is input to the electromagnetic wire of the electric expansion valve
Circle.
4. the control method of electric expansion valve according to claim 3, which is characterized in that second pulse signal and institute
State setting valve step proportional.
5. the control method of electric expansion valve according to claim 2, which is characterized in that the electromagnetic coil is according to
Pulse signal opens the electric expansion valve and opens the electricity according to the pulse signal for the electromagnetic coil with setting speed
Sub- expansion valve.
6. the control method of electric expansion valve according to claim 5, which is characterized in that the setting speed is v,
In, 28ms/pls≤v≤35ms/pls.
7. the control method of electric expansion valve according to claim 1, which is characterized in that the ac signal is exchange
Voltage, the DC signal are DC voltage.
8. the control method of electric expansion valve according to claim 7, which is characterized in that the first controller (11) root
DC signal, which is converted, by the ac signal according to the ac signal and is input to second controller (12) includes:
The judgement for carrying out the alternating voltage, it is when the alternating voltage, which meets first, to impose a condition, the alternating voltage is defeated
It is out DC voltage.
9. the control method of electric expansion valve according to claim 8, which is characterized in that described first imposes a condition as institute
State alternating voltage U1Meet 110V≤U1≤250V。
10. the control method of electric expansion valve according to claim 8 or claim 9, which is characterized in that the second controller
(12) include: according to DC signal starting
The judgement for carrying out the DC voltage, when the DC voltage, which meets second, to impose a condition, the second controller
(12) start.
11. the control method of electric expansion valve according to claim 10, which is characterized in that described second, which imposes a condition, is
The DC voltage U2Meet 10V≤U2≤15V。
12. a kind of control device of electric expansion valve characterized by comprising the first controller (11) and second controller
(12), wherein first controller (11) is connected with second controller, and the second controller (12) and the electronics are swollen
Swollen valve communication connection；First controller (11) is used to obtain the ac signal of first controller, is also used to basis
The ac signal converts DC signal for the ac signal and is input to second controller (12)；Described second
Controller (12) starts according to the DC signal, is also used to be opened according to setting valve step control electric expansion valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910869202.2A CN110530084B (en) | 2019-09-16 | 2019-09-16 | Control method and device of electronic expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910869202.2A CN110530084B (en) | 2019-09-16 | 2019-09-16 | Control method and device of electronic expansion valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110530084A true CN110530084A (en) | 2019-12-03 |
| CN110530084B CN110530084B (en) | 2022-02-01 |
Family
ID=68668716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910869202.2A Active CN110530084B (en) | 2019-09-16 | 2019-09-16 | Control method and device of electronic expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110530084B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115164454A (en) * | 2022-07-11 | 2022-10-11 | 珠海格力电器股份有限公司 | Control method and control device for electronic expansion valve body |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007017075A (en) * | 2005-07-07 | 2007-01-25 | Mitsubishi Heavy Ind Ltd | Refrigeration unit and operation method thereof |
| CN104515333A (en) * | 2013-09-28 | 2015-04-15 | 杭州三花研究院有限公司 | Circulating system of refrigerant |
| CN104792078A (en) * | 2015-04-29 | 2015-07-22 | 四川长虹空调有限公司 | Device and method for driving electronic expansion valve with multiple communication modes |
| EP1923646A4 (en) * | 2005-09-09 | 2016-11-16 | Daikin Ind Ltd | Refrigeration device |
-
2019
- 2019-09-16 CN CN201910869202.2A patent/CN110530084B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007017075A (en) * | 2005-07-07 | 2007-01-25 | Mitsubishi Heavy Ind Ltd | Refrigeration unit and operation method thereof |
| EP1923646A4 (en) * | 2005-09-09 | 2016-11-16 | Daikin Ind Ltd | Refrigeration device |
| CN104515333A (en) * | 2013-09-28 | 2015-04-15 | 杭州三花研究院有限公司 | Circulating system of refrigerant |
| CN104792078A (en) * | 2015-04-29 | 2015-07-22 | 四川长虹空调有限公司 | Device and method for driving electronic expansion valve with multiple communication modes |
Non-Patent Citations (2)
| Title |
|---|
| 朱瑞琪: "《制冷装置自动化》", 28 February 2009, 西安交通大学出版社 * |
| 陈天及: "《商业用制冷装置》", 31 October 2001, 天津科学技术出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115164454A (en) * | 2022-07-11 | 2022-10-11 | 珠海格力电器股份有限公司 | Control method and control device for electronic expansion valve body |
| CN115164454B (en) * | 2022-07-11 | 2024-02-27 | 珠海格力电器股份有限公司 | Control method and control device for electronic expansion valve body |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110530084B (en) | 2022-02-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106066435A (en) | Photovoltaic DC-to-AC converter aging testing system | |
| CN105276758A (en) | Method and device for estimating power consumption of variable-frequency air conditioner | |
| CN104952667B (en) | A kind of electromagnetic switch intelligent controlling device suitable for low voltage power supply system | |
| CN110440395A (en) | A kind of control method of energy-saving operation of air conditioner, system and air-conditioning | |
| CN107461844A (en) | Air-conditioning system and its Poewr control method and device | |
| CN110530084A (en) | The control method and device of electric expansion valve | |
| CN104896172B (en) | A kind of control method of urea pump air solenoid valve | |
| CN104901403B (en) | A kind of wireless charging system for electric automobile and method that power adjusting is realized based on phased inverter | |
| CN105932654A (en) | Air conditioner and power supply control circuit of fan for air conditioner | |
| CN205691700U (en) | Photovoltaic DC-to-AC converter aging testing system | |
| CN105490360A (en) | Mobile phone wireless charging circuit | |
| CN204538988U (en) | A kind of Switching Power Supply, frequency-variable controller and convertible frequency air-conditioner | |
| CN107020914B (en) | A kind of blower fan control system and air-conditioning of air-conditioning | |
| CN203720617U (en) | A communication base station machine room power saving and air exchange energy saving controlling apparatus | |
| CN107193312B (en) | A kind of list battery core simulator | |
| CN109861332A (en) | It is a kind of based on fuzzy proportional-integral wireless charging control method | |
| CN205333831U (en) | Experimental loading system of welding source | |
| CN205335949U (en) | Indoor unit and air conditioner | |
| CN217927401U (en) | Low-power-consumption control device for direct-current electromagnetic valve in germanium tetrachloride rectification | |
| CN107762822B (en) | A kind of self checking method of compressor and the controller of compressor | |
| CN208596959U (en) | A kind of wireless charging circuit of power battery | |
| CN207473058U (en) | Electric transmission experimental rig and system | |
| CN206246328U (en) | A kind of compressor of air conditioner controls circuit and air-conditioner | |
| CN206461538U (en) | A kind of screw machine central air-conditioning synchronous motor Variable Frequency Drives | |
| CN205986702U (en) | Electric device's wave filter subassembly and this electric device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |