CN106439171B - Electronic expansion valve device, control method thereof and multi-split system - Google Patents
Electronic expansion valve device, control method thereof and multi-split system Download PDFInfo
- Publication number
- CN106439171B CN106439171B CN201611024874.6A CN201611024874A CN106439171B CN 106439171 B CN106439171 B CN 106439171B CN 201611024874 A CN201611024874 A CN 201611024874A CN 106439171 B CN106439171 B CN 106439171B
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- auxiliary
- controls
- control mainboard
- circulation passage
- armature
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000000903 blocking effect Effects 0.000 claims description 75
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 29
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 239000007788 liquid Substances 0.000 abstract description 47
- 239000003507 refrigerant Substances 0.000 description 28
- 230000000694 effects Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0644—One-way valve
- F16K31/0655—Lift 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Electrically Driven Valve-Operating Means (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention provides an electronic expansion valve device, comprising: the base is provided with a circulation channel; a main valve assembly mounted on the base; the auxiliary valve assembly is arranged on the base; the auxiliary valve assembly can open the flow passage after being electrified; the auxiliary valve assembly can block the flow channel after power failure. The auxiliary valve assembly ensures that the electronic expansion valve device can completely block a circulation channel after power failure, effectively solves the problem of liquid return of a multi-split system caused by the fact that the electronic expansion valve of an indoor unit is not closed when power failure occurs in the conventional multi-split engineering, ensures the service performance of a compressor, and improves the operation reliability of the multi-split system. The invention also provides a control method of the electronic expansion valve device and a multi-split system.
Description
Technical field
The present invention relates to air conditioner technical field, more particularly to a kind of electronic expansion valve gear and its control method and
Multi-line system.
Background technique
Multi-connected machine can give multiple users cooling supply or heat supply simultaneously simultaneously, therefore usually apply in hotel, office building etc.
The more occasion of resident.The normal project installation requirement of multi-connected machine: multi-connected machine need to be unified to power and such as illuminate dress with other equipment
It the needs such as sets and keeps independent.But practical this point in application is but often difficult to guarantee, therefore, multi-connected machine is it is possible that part
The independently-powered situation of indoor unit, this part indoor unit are possible in use by individually cutting (in such as office building layer
Machine is individually powered, this layer of all equal power down in room when personnel leave away), electronic expansion valve of indoor unit has little time to reset at this time, protects
It holds current aperture and causes coolant leakage, multi-connected machine can be caused, which to return liquid, leads to compressor damage.
Currently, to solve the problems, such as that multi-connected machine returns liquid caused by independent cutting, when generalling use separated power supply in engineering,
Protection can be executed under more indoor unit power-down conditions by encountering, to prevent the control of non-return liquid.But this solution is to pass through inspection
It surveys a certain number of indoor unit communications to go offline to judge its power down and protection is reported to shut down, there are certain limitations for this mode, such as
Is machine suitable in detection is how many? if less than normal, protection may be frequently reported, it is on the high side, then it may protect not in place.In this way, indoor unit point
When opening power supply, once there is multiple indoor unit power down (such as floor maintenance or multiple indoor units are when not in use), then cause more
Online complete machine protection, which is shut down, not to work, so that the use (experiencing especially for hotel especially bad) of other room air conditioners is influenced,
If multi-connected machine complete machine not stoppage protection when, multi-connected machine will appear back liquid problem, influence the reliability service of multi-connected machine.
Summary of the invention
Based on this, it is necessary to for indoor unit in current multi-connected machine engineering electric expansion valve power down do not close cause it is more
There is back the problem of liquid in on-line system, and providing one kind and can be avoided leads to back liquid because circulation passage is caused not exclusively to block for power down
The electronic expansion valve gear of problem, while a kind of control method applied to above-mentioned electronic expansion valve gear is additionally provided, and
A kind of multi-line system containing above-mentioned electric expansion valve is provided.
Above-mentioned purpose is achieved through the following technical solutions:
A kind of electronic expansion valve gear, comprising:
Pedestal is provided with circulation passage in the pedestal；
Main valve component is installed on the pedestal；And
Secondary valve module is installed on the pedestal；The pair valve module can open the circulation passage after being powered；It is described
The circulation passage can be blocked after secondary valve module power down.
In one of the embodiments, the secondary valve module include auxiliary blocking part for blocking the circulation passage and
The auxiliary controls of the auxiliary blocking part are controlled, the auxiliary blocking part is connect with the auxiliary controls；
The auxiliary controls energization can make the auxiliary blocking part open the circulation passage, the auxiliary controls
Power down can make the auxiliary blocking part block the circulation passage.
The secondary valve module further includes auxiliary armature in one of the embodiments, and the auxiliary controls are auxiliary line
Circle, the auxiliary armature are connect with the auxiliary blocking part；
The ancillary coil energization can adsorb the armature, drive the armature described in the auxiliary blocking part opening
Circulation passage.
The secondary valve module further includes auxiliary elastic member in one of the embodiments, one end of the auxiliary elastic member
It is fixed in the secondary valve module, the other end of the auxiliary elastic member is connected with the auxiliary armature；
The ancillary coil, which is powered, adsorbs the armature, and the armature can compress the auxiliary elastic member；
The ancillary coil power down discharges the armature, and the auxiliary elastic member is able to drive the armature and resets and make institute
It states auxiliary blocking part and blocks the circulation passage.
The ancillary coil is hollow structure in one of the embodiments, and the auxiliary elastic member and the auxiliary are held in the mouth
Iron is mounted in the ancillary coil；
The auxiliary armature is able to drive the auxiliary blocking part and moves in the ancillary coil.
The auxiliary controls can be electrically connected with control mainboard in one of the embodiments, and the control mainboard is used
In the energization and power down that control the auxiliary controls；
And the control mainboard is also adjustable the aperture of the main valve component；
The control mainboard controls the energization and power down of the auxiliary controls according to the aperture of the main valve component.
The auxiliary controls also pass through relay and are electrically connected with the control mainboard in one of the embodiments,.
The control method for further relating to a kind of electronic expansion valve gear, applied to the electronics as described in any of the above-described technical characteristic
Expansion valve device, comprising:
The main valve component of the electronic expansion valve gear opens the circulation passage of pedestal；
When the secondary valve module of the electronic expansion valve gear is powered, the pair valve module opens the circulation passage；
When the pair valve module power down, the pair valve module blocks the circulation passage.
The circulation passage that the secondary valve module can turn on or off pedestal in one of the embodiments, includes as follows
Step:
Control mainboard is powered by the auxiliary controls that relay controls the secondary valve module, and the auxiliary controls can
It is attracted the auxiliary armature of the secondary valve module, drives the auxiliary armature described in the auxiliary blocking part opening of the secondary valve module
Circulation passage；
The control mainboard controls the auxiliary controls power down by the relay, and the auxiliary controls can be released
The auxiliary armature is put, makes the auxiliary elastic member of the secondary valve module that the auxiliary blocking part be driven to block the circulation passage.
The control method of the electronic expansion valve gear in one of the embodiments, further include:
The control mainboard adjusts the aperture of the main valve component；
The control mainboard controls the energization and power down of the auxiliary controls according to the aperture of the main valve component.
The control mainboard controls the auxiliary according to the aperture of the main valve component and controls in one of the embodiments,
The energization of part includes the following steps: with power down
The control mainboard can calculate the practical step Numerical of the aperture of the main valve component；
The default step Numerical of the aperture of the main valve component is stored in the control mainboard, the default step Numerical is institute
State the step Numerical that main valve component closes the circulation passage；
Compare the default step Numerical and the practical step Numerical；
If the practical step Numerical is greater than the default step Numerical, the control mainboard controls the ancillary coil and is powered；
If the practical step Numerical is less than or equal to the default step Numerical, the control mainboard controls the ancillary coil and falls
Electricity.
The control mainboard controls the auxiliary according to the aperture of the main valve component and controls in one of the embodiments,
The energization and power down of part further include following steps:
Sensor is able to detect real work signal, and the real work signal is fed back to the control mainboard；
The control mainboard can calculate the practical step number of the aperture of the main valve component according to the real work signal
Value, to adjust the aperture of the main valve component.
A kind of multi-line system is further related to, including multiple indoor units and multiple electronics as described in any of the above-described technical characteristic
Expansion valve device；
Multiple electronic expansion valve gears are respectively arranged in multiple indoor units.
There is control mainboard in one of the embodiments, the control mainboard can be with the electricity in the indoor unit
The auxiliary controls of sub- expansion valve device are electrically connected.
Relay is additionally provided in the indoor unit in one of the embodiments, the relay is set to described auxiliary
Help control piece between the control mainboard；
The control mainboard controls the energization and power down of the auxiliary controls by the relay.
The control mainboard is also adjustable the aperture of the main valve component, the control master in one of the embodiments,
Plate controls the energization and power down of the auxiliary controls according to the aperture of the main valve component.
The default step number of the aperture of the main valve component is stored in the control mainboard in one of the embodiments,
Value；
The practical step Numerical that the control mainboard adjusts the practical step Numerical of the aperture of the main valve component is greater than described pre-
If when step Numerical, the auxiliary controls of the electronic expansion valve gear are powered；
The practical step Numerical that the control mainboard adjusts the practical step Numerical of the aperture of the main valve component is less than or equal to institute
When stating default step Numerical, the auxiliary controls power down of the electronic expansion valve gear.
Also there is in the indoor unit sensor, the sensor and the control mainboard in one of the embodiments,
Electrical connection；
The sensor is able to detect the real work signal of the indoor unit, and the real work signal is fed back to
The controller, the controller are opened according to the main valve component that the real work signal calculates the electronic expansion valve gear
The practical step Numerical of degree, to adjust the aperture of the main valve component.
The beneficial effects of the present invention are:
Electronic expansion valve gear of the invention, structure design advantages of simple, pass through the cooperation of main valve component and secondary valve module
It realizes the opening and blocking of circulation passage, and then unevaporated liquid refrigerants is avoided to flow back into compressor, guarantee that compressor can
By operation.Secondary valve module can open circulation passage after being powered, and guarantee the flowing of liquid refrigerants.Main valve group after main valve component power down
Part cannot block circulation passage, and circulation passage can be blocked after secondary valve module power down, be can be avoided in this way because of main valve component power down
The problem of caused circulation passage cannot be blocked completely, and then avoid unevaporated liquid refrigerants and multi-line system is caused to be returned
Liquid avoids compressor by liquid hazards, guarantees the performance of compressor, improves compressor reliability of operation, and then improve more
On-line system reliability of operation.Also, after the truncation for guaranteeing electronic expansion valve gear by secondary valve module, multi-line system
Indoor unit can be independently-powered, and the operation of multi-line system complete machine will not be influenced after indoor unit power down, multi-joint in guarantee
While machine system reliability, convenient for the project installation of multi-line system, user installation expense is reduced.Electronic expansion of the invention
Valve gear passes through after secondary valve module guarantees the power down of electronic expansion valve gear can block circulation passage completely, and effective solution is current
The electric expansion valve power down of indoor unit, which is not closed, in multi-connected machine engineering causes multi-line system liquid problem occur back, guarantees compressor
Service performance, improve multi-line system reliability of operation.
Control method since electronic expansion valve gear has above-mentioned technique effect, applied to above-mentioned electronic expansion valve gear
Also there is corresponding technical effect.
It include the multi-connected machine system of above-mentioned electronic expansion valve gear since electronic expansion valve gear has above-mentioned technique effect
System also has corresponding technical effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that ancillary coil is powered in the electronic expansion valve gear of one embodiment of the invention；
Fig. 2 is the structural schematic diagram of ancillary coil power down in electronic expansion valve gear shown in FIG. 1；
Wherein:
100- electronic expansion valve gear；
110- pedestal；
111- circulation passage；
1111- entrance；
The outlet 1112-；
120- main valve component；
121- rotor；
122- main coil；
123- main valve stem；
130- pair valve module；
131- assists blocking part；
132- ancillary coil；
133- assists armature；
134- auxiliary elastic member.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, by the following examples, it and combines attached
Figure, is further elaborated electronic expansion valve gear of the invention and its control method and multi-line system.It should manage
Solution, described herein specific examples are only used to explain the present invention, is not intended to limit the present invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements, unless otherwise restricted clearly.For those of ordinary skill in the art
For, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
It should be noted that it can be directly another when element is referred to as " being fixed on " or " being set to " another element
On one element or there may also be elements placed in the middle.When an element is considered as " connection " another element, it can be with
It is directly to another element or may be simultaneously present centering elements.Term as used herein " vertically ", " level
", "upper", "lower", "left", "right" and similar statement for illustrative purposes only, be not offered as being uniquely to implement
Mode.
Referring to Fig. 1 and Fig. 2, the present invention provides a kind of electronic expansion valve gear 100,100 energy of electronic expansion valve gear
It is enough that flow is adjusted, it can be applied in most of equipment for being related to flow adjusting.In the present embodiment, electric expansion valve fills
It sets 100 to be applied in the indoor unit of multi-line system, the tune of the flow of liquid refrigerants is controlled by electronic expansion valve gear 100
Section.Certainly, in other embodiments of the invention, electronic expansion valve gear 100 can be also used in other equipment.Of the invention
Electronic expansion valve gear 100 can block circulation passage 111 after capable of guaranteeing 100 power down of electronic expansion valve gear completely, effectively
Solve the problems, such as that the electric expansion valve power down of indoor unit in current multi-connected machine engineering is not closed multi-line system caused liquid occur back,
Guarantee the service performance of compressor, improves multi-line system reliability of operation.
In one embodiment of this invention, electronic expansion valve gear 100 includes pedestal 110, main valve component 120 and secondary valve group
Part 130.Main valve component 120 and secondary valve module 130 are mounted on pedestal 110.It is provided with circulation passage 111 in pedestal 110, flows
One end of circulation passage 111 is entrance 1111, and the other end of circulation passage 111 is outlet 1112.Liquid refrigerants from entrance 1111 into
Enter through circulation passage 111 and is flowed out from outlet 1112.Main valve component 120 is used to adjust the flow of liquid refrigerants, secondary valve module 130
Also it can be used in adjusting the flow of liquid refrigerants, also, when main valve component 120 cannot block circulation passage 111 completely, pass through
Secondary valve module 130 blocks circulation passage 111 completely, and to avoid electronic expansion valve gear 100, circulation passage 111 cannot during power down
It is blocked, and then avoids returning liquid problem caused by liquid refrigerants is flowed still through circulation passage 111 when power down, avoid compressor
Damage, improves the reliability of multi-line system.In the present embodiment, main valve component 120 is arranged close to entrance 1111, secondary valve module
130 are arranged far from entrance 1111.That is, main valve component 120 is than secondary valve module 130 closer to the entrance of circulation passage 111
1111, when liquid refrigerants flows in circulation passage 111, liquid refrigerants first contacts the Contact Pair valve module again of main valve component 120
130, in this way in electronic expansion 100 power down of valve gear, main valve component 120 cannot block circulation passage 111 completely, pass through secondary valve
Component 130 blocks circulation passage 111 to avoid unevaporated liquid to guarantee that electronic expansion valve gear 100 can completely close completely
State refrigerant returns in compressor, improves compressor reliability of operation.Meanwhile 130 energy of secondary valve module after the secondary energization of valve module 130
Enough open circulation passage 111.At this point it is possible to by the flow for adjusting electronic expansion valve gear 100 by main valve component 120, with
Guarantee compressor reliability service, guarantees the performance of multi-line system；Secondary valve module 130 can block after secondary 130 power down of valve module
Circulation passage 111.At this point, since secondary valve module 130 shuts circulation passage 111 completely, even if main valve component 120 is to shut completely
It can also ensure that closing is thoroughly truncated in electron collision subtraction unit.
Further, main valve component 120 includes main coil 122, rotor 121 and main valve stem 123, and rotor 121 is sheathed on master
On valve rod 123, and it is installed in main coil 122.Main valve component 120 in multi-line system with the controlling party of conventional air conditioning system
Formula is identical, and driving pulse is mainly controlled according to the degree of superheat of multi-line system and carries out flow adjusting.But when indoor unit power down
When, main valve stem 123 cannot block circulation passage 111, then lead to still have liquid refrigerants to exist when electronic expansion 100 power down of valve gear
It is flowed in circulation passage 111, influences the reliability service of compressor.Therefore, electronic expansion valve gear 100 of the invention passes through increase
Secondary valve module 130 guarantees compressor reliability of operation when power down.When indoor unit power down, secondary 130 power down of valve module, at this point,
Secondary valve module 130 can block circulation passage 111, prevent liquid refrigerants is by circulation passage 111 from flowing, and then avoid liquid
State refrigerant is flowed into compressor.
Currently, to solve the problems, such as that multi-connected machine returns liquid caused by independent cutting, when generalling use separated power supply in engineering,
Protection can be executed under more indoor unit power-down conditions by encountering, to prevent the control of non-return liquid.But this solution is to pass through inspection
It surveys a certain number of indoor unit communications to go offline to judge its power down and protection is reported to shut down, there are certain limitations for this mode, such as
Is machine suitable in detection is how many? if less than normal, protection may be frequently reported, it is on the high side, then it may protect not in place.In this way, indoor unit point
When opening power supply, once multiple indoor unit power down such as floor maintenance or multiple indoor units occur when not in use, then causes multi-joint
The protection of machine complete machine, which is shut down, not to work, so that the use for influencing other room air conditioners is especially bad especially for hotel experience, if more
Online complete machine not stoppage protection when, then multi-connected machine will appear back liquid problem, influence the reliability service of multi-connected machine.Electronics of the invention
Expansion valve device 100 realizes the opening and blocking of circulation passage 111 by the cooperation of main valve component 120 and secondary valve module 130, into
And unevaporated liquid refrigerants is avoided to flow back into compressor, guarantee compressor reliability service.Secondary valve module 130 can after being powered
Circulation passage 111 is opened, guarantees the flowing of liquid refrigerants.Main valve component 120 cannot block circulation logical after 120 power down of main valve component
Road 111 can block circulation passage 111 after secondary 130 power down of valve module, be can be avoided in this way because 120 power down of main valve component causes
Circulation passage 111 the problem of cannot being blocked completely, and then avoid unevaporated liquid refrigerants and multi-line system caused to be returned
Liquid avoids compressor by liquid hazards, guarantees the performance of compressor, improves compressor reliability of operation, and then improve more
On-line system reliability of operation.Also, after the truncation for guaranteeing electronic expansion valve gear 100 by secondary valve module 130, multi-connected machine
The indoor unit of system can be independently-powered, and the operation of multi-line system complete machine will not be influenced after indoor unit power down, is protecting
While demonstrate,proving multi-line system reliability, convenient for the project installation of multi-line system, user installation expense is reduced.Electricity of the invention
Sub- expansion valve device 100 passes through after secondary valve module 130 guarantees 100 power down of electronic expansion valve gear can block circulation passage completely
111, the electric expansion valve power down of indoor unit, which is not closed, in the current multi-connected machine engineering of effective solution causes multi-line system to occur
Liquid problem is returned, guarantees the service performance of compressor, improves multi-line system reliability of operation.
As an embodiment, secondary valve module 130 includes the auxiliary blocking part 131 for blocking circulation passage 111
And the auxiliary controls of control auxiliary blocking part 131, auxiliary blocking part 131 are connect with auxiliary controls.Blocking part 131 is assisted to hinder
After the circulation passage 111 that stops, auxiliary blocking part 131 can be abutted with the inner wall of circulation passage 111, so that liquid refrigerants cannot pass through
Circulation passage 111 flows.Auxiliary controls be for control auxiliary blocking part 131 move, auxiliary controls by be powered or
The mode of person's power down controls auxiliary blocking part 131 and moves.Auxiliary controls energization can make to assist the opening circulation of blocking part 131 logical
Road 111, auxiliary controls power down can make that blocking part 131 is assisted to block circulation passage 111.Auxiliary blocking part 131 can block
Or open circulation passage 111.After the indoor unit power down of multi-line system, although main valve component 120 is maintained because of indoor unit power down
In fixed aperture, but the auxiliary controls power down of secondary valve module 130 is so that auxiliary blocking part 131 can block circulation logical
Road 111 can return in compressor to avoid unevaporated liquid refrigerants, guarantee the service performance of compressor, then improve multi-joint
Machine system reliability of operation.In the present invention, auxiliary blocking part 131 be valve rod, baffle or other can be realized blocking stream
The structure of circulation passage 111.
Further, in the present embodiment, auxiliary controls are ancillary coil 132, and secondary valve module 130 further includes auxiliary rank
Iron 133, auxiliary armature 133 are connect with auxiliary blocking part 131.The energization of ancillary coil 132 can adsorb armature, drive armature auxiliary
Blocking part 131 is helped to open circulation passage 111.Certainly, in other embodiments of the invention, auxiliary controls can also be electromagnet
Or the structure that auxiliary blocking part 131 moves can be controlled after other energizations.When multi-line system operates normally, at indoor unit
In energized state, after ancillary coil 132 is powered, the electric current by flowing through ancillary coil 132 can generate excitation effect, auxiliary in this way
Index contour circle 132 can be attracted auxiliary armature 133, while it is logical to open circulation to assist armature 133 to move with dynamic auxiliary blocking part 131
Road 111, at this point, liquid refrigerants can flow in circulation passage 111, also, the flow of electronic expansion valve gear 100 passes through master
Valve module 120 is adjusted.After indoor unit power-off, 132 power down of ancillary coil, the auxiliary armature 133 of the release of ancillary coil 132 at this time,
Auxiliary armature 133 is able to drive auxiliary blocking part 131 and blocks circulation passage 111 downwards, although main valve component 120 is because of interior at this time
Machine power down maintains fixed aperture, but the auxiliary controls power down of secondary valve module 130 is so that auxiliary blocking part 131 can
Circulation passage 111 is blocked, can be returned in compressor to avoid unevaporated liquid refrigerants, guarantee the service performance of compressor, after
And improve multi-line system reliability of operation.
Still further, secondary valve module 130 further includes auxiliary elastic member 134, pair is fixed in one end of auxiliary elastic member 134
In valve module 130, the other end of auxiliary elastic member 134 is connected with auxiliary armature 133.Ancillary coil 132, which is powered, adsorbs armature, rank
Iron can compress auxiliary elastic member 134.132 power down of ancillary coil discharges armature, and auxiliary elastic member 134 is able to drive armature reset
And make that blocking part 131 is assisted to block circulation passage 111.Auxiliary elastic member 134 assists resistance after can be used in 132 power down of ancillary coil
Broken piece 131 automatically resets, and guarantees that secondary valve module 130 is reliable for operation.When multi-line system operates normally, indoor unit, which is in, to be powered
State, after ancillary coil 132 is powered, the electric current by flowing through ancillary coil 132 can generate excitation effect, such ancillary coil
132 can be attracted auxiliary armature 133, while armature 133 being assisted to move with dynamic auxiliary blocking part 131 to open circulation passage 111,
At this point, auxiliary armature 133 compresses auxiliary elastic member 134.After indoor unit power-off, 132 power down of ancillary coil, ancillary coil at this time
132 release auxiliary armature 133, auxiliary armature 133 falls reset under the action of by 132 elastic force of ancillary coil, while assisting armature
133 band dynamic auxiliary blocking parts 131 block downwards circulation passage 111, return in compressor, protect to avoid unevaporated liquid refrigerants
The service performance of compressor is demonstrate,proved, multi-line system reliability of operation is then improved.In the present embodiment, auxiliary elastic member 134
For spring.Certainly, in other embodiments of the invention, auxiliary elastic member 134 can also be other structures with elastic force.
In the present invention, one end of auxiliary elastic member 134 can be fixed on components static in secondary valve module 130.
Preferably, in the present embodiment, ancillary coil 132 is hollow structure, auxiliary elastic member 134 and auxiliary armature 133
It is mounted in ancillary coil 132.Auxiliary armature 133 is able to drive auxiliary blocking part 131 and moves in ancillary coil 132.This
Sample can guarantee that ancillary coil 132 generates enough magnetic field and is attracted auxiliary armature 133, simultaneously, moreover it is possible to guarantee auxiliary armature 133 with
The running track for assisting blocking part 131, avoids glancing off.Also, the structure letter of electronic expansion valve gear 100 of the invention
It is single, it is easily installed.
As an embodiment, auxiliary controls can be electrically connected with control mainboard, and control mainboard is auxiliary for controlling
Help the energization and power down of control piece.The energization and power down of ancillary coil 132 are realized by the electric and power loss that obtains of control mainboard.
Control mainboard is the master control unit of indoor unit.When multi-line system work normally when, the control mainboard of indoor unit obtain it is electric, at this point,
Control mainboard can be realized auxiliary controls energization, then realize that auxiliary blocking part 131 opens circulation passage 111.Work as indoor unit
When power-off, control mainboard power loss leads to auxiliary controls power down, and then assists blocking part 131 that can block circulation passage 111, keeps away
Exempt from unevaporated liquid refrigerants to flow back into compressor, guarantee the service performance of compressor, improves the reliability of multi-line system.
Further, auxiliary controls also pass through relay and are electrically connected with control mainboard.
Meanwhile control mainboard is also adjustable the aperture of main valve component 120, also, control mainboard can be according to main valve component
The energization and power down of 120 aperture control auxiliary controls.When multi-line system operates normally, generally according to indoor unit itself
Such as refrigeration of electronic expansion valve gear 100 is closed in control under special circumstances makes electronic expansion valve gear 100 when reaching preset temperature
In shutting state.But being lengthened using the time with electronic expansion valve gear 100, may there is a situation where to close not dead.
Therefore, electronic expansion valve gear 100 of the invention guarantees that 100 long-time of electronic expansion valve gear makes by secondary valve module 130
The truncation of used time guarantees the reliability of electronic expansion valve gear 100, then guarantees the service performance of multi-line system.
Electronic expansion valve gear 100 of the invention has default step Numerical, and presetting step Numerical is preset main valve group
The step Numerical of the closing circulation passage 111 of part 120.Control mainboard can adjust the practical step Numerical of the aperture of main valve component 120.It is logical
Crossing practical step Numerical can judge that electronic expansion valve gear 100 is in truncation state compared with default step Numerical
Opening state.Compare practical step Numerical and default step Numerical, when practical step Numerical is greater than default step Numerical, ancillary coil 132
It is powered, and flow is adjusted by main valve component 120；When practical step Numerical is less than or equal to default step Numerical, ancillary coil 132 falls
Electricity so that auxiliary blocking part 131 completely block circulation passage 111, at this point, even if main valve component 120 be shut completely, but by
Circulation passage 111 is blocked completely in the auxiliary blocking part 131 of secondary valve module 130, it can be ensured that electronic expansion valve gear 100 is thoroughly cut
It is disconnected, it avoids liquid refrigerant from circulating, improves the service performance of multi-line system.Meanwhile control mainboard can adjust main valve component
The practical step Numerical of 120 aperture is that the real work signal for detecting indoor unit according to sensor obtains.Indoor unit is according to biography
Sensor detects real work signal, and real work signal is fed back to control mainboard, and control mainboard is according to real work signal
Adjust the practical step Numerical of the aperture of main valve component 120.
In general, the movement step number of the break-in facility of electric expansion valve can be selected according to the requirement of different multi-line systems
It selects.For example, being generally acknowledged that the following electronic expansion valve gear 100 of 0 step is to shut state in certain multi-line systems, then step is preset
Numerical value is 0 step, then can be powered according to following 132 power down of ancillary coil of 0 step, the above ancillary coil 132 of 0 step when determining.For another example,
It is generally acknowledged that the following electronic expansion valve gear 100 of 50 steps is to shut state in certain multi-line systems, then presetting step Numerical is
50 steps can be powered when then determining according to following 132 power down of ancillary coil of 50 steps, the above ancillary coil 132 of 50 steps.It is logical swollen by electronics
It is found that in the step number being lower than where turning point, electronic expansion valve gear 100 begins to locate the flow formula of swollen valve gear 100
In truncation state.
The present invention also provides a kind of control methods of electronic expansion valve gear 100, applied to the electricity in above-described embodiment
Sub- expansion valve device 100, comprising:
The main valve component 120 of electronic expansion valve gear 100 opens the circulation passage 111 of pedestal 110；
When the secondary valve module 130 of electronic expansion valve gear 100 is powered, secondary valve module 130 opens circulation passage 111；
When secondary 130 power down of valve module, secondary valve module 130 blocks circulation passage 111.
Circulation passage 111 is blocked completely by the secondary valve module 130 of electronic expansion valve gear 100, to guarantee electronic expansion
Valve gear 100 can completely close, even if main valve component 120 is to shut to can also ensure that electron collision subtraction unit is thoroughly cut completely
It is disconnected to close, it avoids unevaporated liquid refrigerants from returning in compressor, improves compressor reliability of operation.
Further, the circulation passage 111 that secondary valve module 130 can turn on or off pedestal 110 includes the following steps:
Control mainboard is powered by the auxiliary controls that relay controls secondary valve module 130, and auxiliary controls can be attracted
The auxiliary armature 133 of secondary valve module 130 makes the auxiliary blocking part 131 for assisting armature 133 to drive secondary valve module 130 open circulation
Channel 111；
Control mainboard controls auxiliary controls power down by relay, and auxiliary controls can discharge auxiliary armature 133, make
The auxiliary elastic member 134 of secondary valve module 130 blocks circulation passage 111 with dynamic auxiliary blocking part 131.
Electronic expansion valve gear 100 controls the energization and power down of auxiliary controls by control mainboard, can be convenient for electronics
The opening and truncation of expansion valve device 100 improve the reliability of electronic expansion valve gear 100.Also, electricity is realized by empty mainboard
The control of sub- expansion valve device 100, process control is simple, without additional controller, reduces cost.
As an embodiment, the control method of electronic expansion valve gear 100 further include:
The aperture of control mainboard adjusting main valve component 120；
Control mainboard controls the energization and power down of auxiliary controls according to the aperture of main valve component 120.
Electronic expansion valve gear 100 adjusts the aperture between blocking part and circulation passage 111 by control mainboard and can protect
100 prolonged use of electronic expansion valve gear safety is demonstrate,proved, the service life of electronic expansion valve gear 100 is extended.
Further, the aperture adjusted between auxiliary blocking part 131 and circulation passage 111 includes the following steps:
Control mainboard includes the following steps: according to the energization that the aperture of main valve component 120 controls auxiliary controls with power down
Control mainboard can calculate the practical step Numerical of the aperture of main valve component 120；
The default step Numerical of the aperture of main valve component 120 is stored in control mainboard, presetting step Numerical is the main valve group
The step Numerical of the closing circulation passage 111 of part 120；
Compare default step Numerical and practical step Numerical；
If practical step Numerical is greater than default step Numerical, control mainboard controls ancillary coil 132 and is powered；
If practical step Numerical is less than or equal to default step Numerical, control mainboard controls 132 power down of ancillary coil.
When practical step Numerical is greater than default step Numerical, ancillary coil 132 is powered, and adjusts stream by main valve component 120
Amount, electronic expansion valve gear 100 work normally；When practical step Numerical is less than or equal to default step Numerical, ancillary coil 132 falls
Electricity so that auxiliary blocking part 131 completely block circulation passage 111, at this point, even if main valve component 120 be shut completely, but by
Circulation passage 111 is blocked completely in the auxiliary blocking part 131 of secondary valve module 130, it can be ensured that electronic expansion valve gear 100 is thoroughly cut
It is disconnected, it avoids liquid refrigerant from circulating, improves the service performance of multi-line system.
Still further, control mainboard according to the aperture of main valve component 120 control auxiliary controls energization and power down also
Include the following steps:
Sensor is able to detect real work signal, and real work signal is fed back to control mainboard；
Control mainboard can calculate the practical step Numerical of the aperture of main valve component 120 according to real work signal, to adjust
The aperture of main valve component 120.
The practical step Numerical that control mainboard can adjust the aperture of main valve component 120 is to detect indoor unit according to sensor
Real work signal obtains.Indoor unit detects real work signal according to sensor, and real work signal is fed back to control
Mainboard processed, control mainboard obtain the practical step Numerical of the aperture of main valve component 120 according to real work signal, adjust main valve component
120 aperture.
The present invention also provides a kind of multi-line systems, swollen including the electronics in multiple indoor units and multiple above-described embodiments
Swollen valve gear 100.Multiple electronic expansion valve gears 100 are respectively arranged in multiple indoor units.Multi-line system of the invention is logical
It crosses electronic expansion valve gear 100 and avoids occurring back liquid problem when power down, avoid compressor damage, improve multi-line system operation
Reliability.Also, multiple indoor units can be independently-powered, and the complete machine of multi-line system will not be influenced the indoor unit power down of part
Operation.
Further, there is control mainboard, control mainboard can be with the auxiliary control of electronic expansion valve gear 100 in indoor unit
Product electrical connection.Control mainboard is the master control unit of indoor unit, when multi-line system works normally, the control mainboard of indoor unit
It is electric, at this point, control mainboard can be realized auxiliary controls energization, then realize auxiliary blocking part 131 open circulation passage
111.When indoor unit power-off, control mainboard power loss leads to auxiliary controls power down, and then assists blocking part 131 that can block stream
Circulation passage 111 avoids unevaporated liquid refrigerants from flowing back into compressor, guarantees the service performance of compressor, improves multi-connected machine
The reliability of system.Still further, being additionally provided with relay in indoor unit, relay is set to auxiliary controls and leads in control
Between plate.Control mainboard controls the energization and power down of auxiliary controls by relay.Also, control mainboard is also adjustable main valve
The aperture of component 120, control mainboard control the energization and power down of auxiliary controls according to the aperture of main valve component 120.
Also, control the default step Numerical that the aperture of main valve component 120 is stored in control mainboard.Control mainboard adjusts main valve
When the practical step Numerical of the practical step Numerical of the aperture of component 120 is greater than default step Numerical, the auxiliary of electronic expansion valve gear 100
Control piece is powered.The practical step Numerical that control mainboard adjusts the practical step Numerical of the aperture of main valve component 120 is less than or equal to default
When step Numerical, the auxiliary controls power down of electronic expansion valve gear 100.Control mainboard adjusts the reality of the aperture of main valve component 120
When border step Numerical is less than or equal to default step Numerical, the auxiliary controls power down of electronic expansion valve gear 100, so that auxiliary blocking part
131 block circulation passages 111 completely, at this point, even if main valve component 120 is to shut completely, but it is auxiliary due to secondary valve module 130
Blocking part 131 is helped to block circulation passage 111 completely, it can be ensured that electronic expansion valve gear 100 is thoroughly truncated, and avoids liquid refrigerant
Circulation, improves the service performance of multi-line system.
Further, also there is sensor, sensor is electrically connected with control mainboard in indoor unit.Sensor is able to detect
The real work signal of indoor unit, and real work signal is fed back into controller, controller is calculated according to real work signal
The practical step Numerical of the aperture of the main valve component 120 of electronic expansion valve gear 100 is to adjust the aperture of main valve component 120.Pass through
Sensor detects the real work signal of indoor unit, and in the present embodiment, real work signal refers to the actual temperature of indoor unit,
Sensor is temperature sensor.The signal of actual temperature can be fed back to control mainboard by sensor, and control mainboard is according to reality
The aperture of the Signal Regulation main valve component 120 of temperature avoids the occurrence of excessive refrigeration to guarantee the cryogenic temperature of indoor unit, improves
Comfort level when user uses.
Only several embodiments of the present invention are expressed for above embodiments, and the description thereof is more specific and detailed, but can not
Therefore limitations on the scope of the patent of the present invention are interpreted as.It should be pointed out that for those of ordinary skill in the art,
Without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection model of the invention
It encloses.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (16)
1. a kind of control method of electronic expansion valve gear, which is characterized in that electronic expansion valve gear (100) includes pedestal
(110), circulation passage (111) are provided in the pedestal (110)；Main valve component (120) is installed on the pedestal (110)；
And secondary valve module (130), it is installed on the pedestal (110)；The pair valve module (130) can open the circulation after being powered
Channel (111)；The pair valve module (130) includes auxiliary controls, and the auxiliary controls are ancillary coil (132)；It is described
The circulation passage (111) can be blocked after secondary valve module (130) power down；The control method includes the following steps:
The main valve component (120) of the electronic expansion valve gear (100) opens the circulation passage (111) of pedestal (110)；
When the secondary valve module (130) of the electronic expansion valve gear (100) is powered, the pair valve module (130) opens the stream
Circulation passage (111)；
When described pair valve module (130) power down, the pair valve module (130) blocks the circulation passage (111)；
Wherein, the circulation passage (111) that the secondary valve module (130) can turn on or off pedestal (110) includes following step
It is rapid:
Control mainboard is powered by the auxiliary controls that relay controls the secondary valve module (130), the auxiliary controls energy
It is enough attracted the auxiliary armature (133) of the secondary valve module (130), the auxiliary armature (133) is made to drive the secondary valve module
(130) auxiliary blocking part (131) opens the circulation passage (111)；
The control mainboard controls the auxiliary controls power down by the relay, and the auxiliary controls can discharge institute
Auxiliary armature (133) is stated, the auxiliary elastic member (134) of the secondary valve module (130) is made to drive auxiliary blocking part (131) resistance
Break the circulation passage (111)；
The control mainboard adjusts the aperture of the main valve component (120)；
The control mainboard controls the energization and power down of the auxiliary controls according to the aperture of the main valve component (120)；
Wherein, the control mainboard controls the energizations of the auxiliary controls and falls according to the aperture of the main valve component (120)
Electricity includes the following steps:
The control mainboard can calculate the practical step Numerical of the aperture of the main valve component (120)；
The default step Numerical of the aperture of the main valve component (120) is stored in the control mainboard, the default step Numerical is
The main valve component (120) closes the step Numerical of the circulation passage (111)；
Compare the default step Numerical and the practical step Numerical；
If the practical step Numerical is greater than the default step Numerical, the control mainboard controls the ancillary coil (132) and is powered；
If the practical step Numerical is less than or equal to the default step Numerical, the control mainboard controls the ancillary coil (132)
Power down.
2. control method according to claim 1, which is characterized in that the pair valve module (130) includes for blocking
The auxiliary blocking part (131) of circulation passage (111) is stated, the auxiliary blocking part (131) connect with the auxiliary controls, and by
The auxiliary controls control；
The auxiliary controls energization can make the auxiliary blocking part (131) open the circulation passage (111), the auxiliary
Control piece power down can make the auxiliary blocking part (131) block the circulation passage (111).
3. control method according to claim 2, which is characterized in that the pair valve module (130) further includes auxiliary armature
(133), the auxiliary armature (133) connect with the auxiliary blocking part (131)；
The ancillary coil (132), which is powered, can adsorb the armature, make the armature that the auxiliary blocking part (131) be driven to beat
Open the circulation passage (111).
4. control method according to claim 3, which is characterized in that the pair valve module (130) further includes assistant spring
Part (134), one end of the auxiliary elastic member (134) are fixed in the secondary valve module (130), the auxiliary elastic member
(134) the other end is connected with the auxiliary armature (133)；
The ancillary coil (132), which is powered, adsorbs the armature, and the armature can compress the auxiliary elastic member (134)；
Ancillary coil (132) power down discharges the armature, and the auxiliary elastic member (134) is able to drive the armature and resets
And the auxiliary blocking part (131) is made to block the circulation passage (111).
5. control method according to claim 4, which is characterized in that the ancillary coil (132) is hollow structure, described
Auxiliary elastic member (134) and the auxiliary armature (133) are mounted in the ancillary coil (132)；
The auxiliary armature (133) is able to drive the auxiliary blocking part (131) movement in the ancillary coil (132).
6. control method according to claim 4, which is characterized in that the auxiliary controls can be electrically connected with control mainboard
It connects, the control mainboard is used to control the energization and power down of the auxiliary controls；
And the control mainboard is also adjustable the aperture of the main valve component (120)；
The control mainboard controls the energization and power down of the auxiliary controls according to the aperture of the main valve component (120).
7. control method according to claim 6, which is characterized in that the auxiliary controls also pass through relay with it is described
Control mainboard electrical connection.
8. the control method of electronic expansion valve gear according to claim 1, which is characterized in that the control mainboard according to
The aperture of the main valve component (120) controls the energization of the auxiliary controls and power down further includes following steps:
Sensor is able to detect real work signal, and the real work signal is fed back to the control mainboard；
The control mainboard can calculate the practical step number of the aperture of the main valve component (120) according to the real work signal
Value, to adjust the aperture of the main valve component (120).
9. a kind of multi-line system, which is characterized in that including multiple indoor units and electronic expansion valve gear (100)；
The electronic expansion valve gear (100) includes pedestal (110), is provided with circulation passage (111) in the pedestal (110)；
Main valve component (120) is installed on the pedestal (110)；And secondary valve module (130), it is installed on the pedestal (110)；Institute
The circulation passage (111) can be opened by stating after secondary valve module (130) are powered；It can be hindered after described pair valve module (130) power down
Break the circulation passage (111)；
Multiple electronic expansion valve gears (100) are respectively arranged in multiple indoor units；
There is control mainboard, the control mainboard can be with the auxiliary of the electronic expansion valve gear (100) in the indoor unit
Control piece electrical connection；
The control mainboard is also adjustable the aperture of the main valve component (120), and the control mainboard is according to the main valve component
(120) aperture controls the energization and power down of the auxiliary controls；
The default step Numerical of the aperture of the main valve component (120) is stored in the control mainboard；
The practical step Numerical that the control mainboard adjusts the practical step Numerical of the aperture of the main valve component (120) is greater than described pre-
If when step Numerical, the auxiliary controls of the electronic expansion valve gear (100) are powered；
The practical step Numerical that the control mainboard adjusts the practical step Numerical of the aperture of the main valve component (120) is less than or equal to institute
When stating default step Numerical, the auxiliary controls power down of the electronic expansion valve gear (100).
10. multi-line system according to claim 9, which is characterized in that the pair valve module (130) includes for blocking
The auxiliary blocking part (131) of the circulation passage (111) and the auxiliary controls of control auxiliary blocking part (131), it is described
Auxiliary blocking part (131) is connect with the auxiliary controls；
The auxiliary controls energization can make the auxiliary blocking part (131) open the circulation passage (111), the auxiliary
Control piece power down can make the auxiliary blocking part (131) block the circulation passage (111).
11. multi-line system according to claim 9, which is characterized in that the pair valve module (130) further includes auxiliary rank
Iron (133), the auxiliary controls are ancillary coil (132), the auxiliary armature (133) and the auxiliary blocking part (131)
Connection；
The ancillary coil (132), which is powered, can adsorb the armature, make the armature that the auxiliary blocking part (131) be driven to beat
Open the circulation passage (111).
12. multi-line system according to claim 11, which is characterized in that the pair valve module (130) further includes auxiliary
Elastic component (134), one end of the auxiliary elastic member (134) are fixed in the secondary valve module (130), the auxiliary elastic member
(134) the other end is connected with the auxiliary armature (133)；
The ancillary coil (132), which is powered, adsorbs the armature, and the armature can compress the auxiliary elastic member (134)；
Ancillary coil (132) power down discharges the armature, and the auxiliary elastic member (134) is able to drive the armature and resets
And the auxiliary blocking part (131) is made to block the circulation passage (111).
13. multi-line system according to claim 12, which is characterized in that the ancillary coil (132) is hollow structure,
The auxiliary elastic member (134) and the auxiliary armature (133) are mounted in the ancillary coil (132)；
The auxiliary armature (133) is able to drive the auxiliary blocking part (131) movement in the ancillary coil (132).
14. multi-line system according to claim 12, which is characterized in that the auxiliary controls can be with control mainboard
Electrical connection, the control mainboard are used to control the energization and power down of the auxiliary controls；
And the control mainboard is also adjustable the aperture of the main valve component (120)；
The control mainboard controls the energization and power down of the auxiliary controls according to the aperture of the main valve component (120).
15. multi-line system according to claim 14, which is characterized in that the auxiliary controls also pass through relay with
The control mainboard electrical connection.
16. multi-line system according to claim 9, which is characterized in that also there is sensor in the indoor unit, it is described
Sensor is electrically connected with the control mainboard；
The sensor is able to detect the real work signal of the indoor unit, and the real work signal is fed back to described
Controller, the controller calculate the main valve component of the electronic expansion valve gear (100) according to the real work signal
(120) the practical step Numerical of aperture, to adjust the aperture of the main valve component (120).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611024874.6A CN106439171B (en) | 2016-11-14 | 2016-11-14 | Electronic expansion valve device, control method thereof and multi-split system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611024874.6A CN106439171B (en) | 2016-11-14 | 2016-11-14 | Electronic expansion valve device, control method thereof and multi-split system |
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| Publication Number | Publication Date |
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| CN106439171B true CN106439171B (en) | 2019-07-05 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20220654U1 (en) * | 2002-10-18 | 2004-02-12 | Karl Dungs Gmbh & Co. Kg | Proportional control gas valve has a double valve layout with a solenoid shut off valve and a proportional valve driven by a linear motor with a spring return sufficiently strong to close the valve on loss of control power |
| CN1496460A (en) * | 2001-03-06 | 2004-05-12 | G. | Control device |
| CN201284871Y (en) * | 2008-08-08 | 2009-08-05 | 浙江三花股份有限公司 | Pilot type solenoid valve |
| CN104728483A (en) * | 2013-12-20 | 2015-06-24 | 杭州三花研究院有限公司 | Flow control valve and control method thereof and refrigeration system |
| CN206206742U (en) * | 2016-11-14 | 2017-05-31 | 珠海格力电器股份有限公司 | Electronic expansion valve device and multi-split system |
-
2016
- 2016-11-14 CN CN201611024874.6A patent/CN106439171B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1496460A (en) * | 2001-03-06 | 2004-05-12 | G. | Control device |
| DE20220654U1 (en) * | 2002-10-18 | 2004-02-12 | Karl Dungs Gmbh & Co. Kg | Proportional control gas valve has a double valve layout with a solenoid shut off valve and a proportional valve driven by a linear motor with a spring return sufficiently strong to close the valve on loss of control power |
| CN201284871Y (en) * | 2008-08-08 | 2009-08-05 | 浙江三花股份有限公司 | Pilot type solenoid valve |
| CN104728483A (en) * | 2013-12-20 | 2015-06-24 | 杭州三花研究院有限公司 | Flow control valve and control method thereof and refrigeration system |
| CN206206742U (en) * | 2016-11-14 | 2017-05-31 | 珠海格力电器股份有限公司 | Electronic expansion valve device and multi-split system |
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