CN206206742U - Electronic expansion valve device and multi-split system - Google Patents
Electronic expansion valve device and multi-split system Download PDFInfo
- Publication number
- CN206206742U CN206206742U CN201621254840.1U CN201621254840U CN206206742U CN 206206742 U CN206206742 U CN 206206742U CN 201621254840 U CN201621254840 U CN 201621254840U CN 206206742 U CN206206742 U CN 206206742U
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- auxiliary
- electronic expansion
- expansion valve
- control mainboard
- circulation passage
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- 230000000903 blocking effect Effects 0.000 claims description 68
- 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 16
- 230000005611 electricity Effects 0.000 claims description 9
- 230000008859 change Effects 0.000 claims description 4
- 239000007788 liquid Substances 0.000 abstract description 47
- 239000003507 refrigerant Substances 0.000 description 28
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000009434 installation Methods 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000002452 interceptive effect Effects 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
- 238000005516 engineering process 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
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Electrically Driven Valve-Operating Means (AREA)
Abstract
The utility model provides an electronic expansion valve device, include: 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 utility model also provides a multi-split system.
Description
Technical field
The utility model is related to air conditioner technical field, more particularly to a kind of electronic expansion valve gear and multi-connected machine system
System.
Background technology
Multi-connected machine simultaneously to multiple user's cooling or heat supplies simultaneously, therefore can be applied usually in hotel, hotel, office building etc.
The more occasion of resident family.The normal project installation requirement of multi-connected machine：Multi-connected machine need to be unified to power and such as illuminated with other equipment dress
Putting etc. needs to keep independent.But actual this point in application is but often difficult to ensure, therefore, multi-connected machine is it is possible that part
The independently-powered situation of indoor set, this part indoor set is possible in use by individually cut-out (such as in office building layer
Machine is individually powered, this layer of all equal power down in room when personnel leave away), now electronic expansion valve of indoor unit has little time to reset, and protects
Hold current aperture and cause coolant leakage, multi-connected machine can be caused to return liquid causes compressor damage.
At present, for solve the problems, such as multi-connected machine by individually cut-out caused by return liquid, in engineering generally using separately power when,
Run into and can perform protection under more indoor set power-down conditions, in case the control of non-return liquid.But, this solution is by inspection
Survey a number of indoor set communication to go offline so as to judge its power down and report protection to shut down, this mode has certain limitation, such as
Machine is suitable in detection is how manyIf less than normal, protection may be frequently reported, it is on the high side, then may protect not in place.So, indoor set point
When opening power supply, once there are multiple indoor set power down (such as floor maintenance or multiple indoor sets when not in use), then cause many
Online whole machine protection is shut down and is not worked, so that the use (experiencing particularly not good especially for hotel) of other room air conditioners is influenceed,
If the whole machine of multi-connected machine not stoppage protection when, multi-connected machine occurs back liquid problem, influences the reliability service of multi-connected machine.
Utility model content
Based on this, it is necessary to for indoor set in current multi-connected machine engineering electric expansion valve power down do not close cause it is many
There is back the problem of liquid in on-line system, there is provided one kind can avoid causing back liquid because power down causes circulation passage not exclusively blocking
The electronic expansion valve gear of problem, while also providing a kind of multiple on-line system containing above-mentioned electric expansion valve.
Above-mentioned purpose is achieved through the following technical solutions：
A kind of electronic expansion valve gear, including：
Pedestal, circulation passage is provided with the pedestal；
Main valve component, is installed on the pedestal；And
Secondary valve module, is installed on the pedestal；The secondary 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.
Wherein in one embodiment, the secondary valve module include for block the circulation passage auxiliary blocking part and
The auxiliary controls of the control auxiliary blocking part, the auxiliary blocking part is connected with the auxiliary controls；
The auxiliary controls are powered 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.
Wherein in one embodiment, the secondary valve module also includes auxiliary armature, and the auxiliary controls are boost line
Circle, the auxiliary armature is connected with the auxiliary blocking part；
The ancillary coil is powered and can adsorb the armature, makes the armature drive the auxiliary blocking part to open described
Circulation passage.
Wherein in one embodiment, the secondary valve module also includes auxiliary elastic member, 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 is powered and 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 can drive the armature to reset and make institute
State auxiliary blocking part and block the circulation passage.
Wherein in one embodiment, the ancillary coil is hollow structure, the auxiliary elastic member and the auxiliary rank
Iron is mounted in the ancillary coil；
The auxiliary armature can drive the auxiliary blocking part to be moved in the ancillary coil.
Wherein in one embodiment, the auxiliary controls can be electrically connected with control mainboard, and the control mainboard is used
In the energization and power down that control the auxiliary controls；
And the control mainboard can also adjust 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.
Wherein in one embodiment, the auxiliary controls are also electrically connected by relay with the control mainboard.
Further relate to a kind of multiple on-line system, including multiple indoor sets and multiple electronics as described above described in any technical characteristic
Expansion valve device；
Multiple electronic expansion valve gears are respectively arranged in multiple indoor sets.
Wherein in one embodiment, there is control mainboard in the indoor set, the control mainboard can be with the electricity
The auxiliary controls electrical connection of sub- expansion valve device.
Wherein in one embodiment, relay is additionally provided with the indoor set, the relay is arranged at described auxiliary
Control piece is helped between the control mainboard；
Energization and power down that the control mainboard passes through auxiliary controls described in the Control.
Wherein in one embodiment, the control mainboard can also adjust the aperture of the main valve component, the control master
Plate controls the energization and power down of the auxiliary controls according to the aperture of the main valve component.
Wherein in one embodiment, the default step number of the aperture of the main valve component that is stored with the control mainboard
Value；
The control mainboard adjusts the actual step Numerical of the actual step Numerical of the aperture of the main valve component more than described pre-
If during step Numerical, the auxiliary controls of the electronic expansion valve gear are powered；
The actual step Numerical that the control mainboard adjusts the actual 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.
Wherein in one embodiment, also there is sensor, the sensor and the control mainboard in the indoor set
Electrical connection；
The sensor can detect the real work signal of the indoor set, and the real work signal is fed back to
The controller, controller main valve component of electronic expansion valve gear according to the real work signal of change is opened
The actual step Numerical of degree, to adjust the aperture of the main valve component.
The beneficial effects of the utility model are：
Electronic expansion valve gear of the present utility model, structure design advantages of simple, by main valve component and secondary valve module
Opening and the blocking of circulation passage are realized in cooperation, and then avoid unevaporated liquid refrigerants from being back in compressor, it is ensured that compression
Machine reliability service.Secondary valve module can open circulation passage after being powered, it is ensured that the flowing of liquid refrigerants.It is main after main valve component power down
Valve module can not block circulation passage, and circulation passage can be blocked after secondary valve module power down, can so avoid because of main valve component
The problem that circulation passage can not be blocked completely caused by power down, and then avoid unevaporated liquid refrigerants and cause multi-connected machine system
Unite back liquid, it is to avoid compressor is subject to liquid hazards, it is ensured that the performance of compressor, improve the reliability of compressor operating, Jin Erti
Multiple on-line system reliability of operation high.Also, after ensureing the blocking of electronic expansion valve gear by secondary valve module, multi-connected machine system
The indoor set of system can ensure with independently-powered, even if also not interfering with the operation of the whole machine of multiple on-line system after indoor set power down
While multiple on-line system reliability, it is easy to the project installation of multiple on-line system, reduces user installation expense.It is of the present utility model
Electronic expansion valve gear can completely block circulation passage after secondary valve module ensures electronic expansion valve gear power down, effectively
Solving the problems, such as that the electric expansion valve power down of indoor set in current multi-connected machine engineering is not closed causes multiple on-line system liquid occur back, protects
The performance of compressor is demonstrate,proved, multiple on-line system reliability of operation is improved.
Because electronic expansion valve gear has above-mentioned technique effect, include the multi-connected machine system of above-mentioned electronic expansion valve gear
System also has corresponding technique effect.
Brief description of the drawings
The structural representation that Fig. 1 is powered for ancillary coil in the electronic expansion valve gear of the embodiment of the utility model one；
Fig. 2 is the structural representation of ancillary coil power down in the electronic expansion valve gear shown in Fig. 1；
Wherein：
100- electronic expansion valve gears；
110- pedestals；
111- circulation passages；
1111- entrances；
1112- is exported；
120- main valve components；
121- rotors；
122- main coils；
123- main valve stems；
130- pair valve modules；
131- aids in blocking part；
132- ancillary coils；
133- aids in armature；
134- auxiliary elastic members.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, by the following examples, and tie
Accompanying drawing is closed, electronic expansion valve gear of the present utility model and multiple on-line system are further elaborated.It should be appreciated that this
The described specific embodiment in place is only used to explain the utility model, is not used to limit the utility model.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. term should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integrally；Can be
Mechanically connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be two
The connection of element internal or two interaction relationships of element, unless otherwise clearly restriction.For the common skill of this area
For art personnel, concrete meaning of the above-mentioned term in the utility model can be as the case may be understood.
In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score
Can be the first and second feature directly contacts, or the first and second features are by intermediary mediate contact.And, first is special
Levy second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only
Represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be with
Be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height less than second feature.
It should be noted that when element is referred to as " being fixed on " or " being arranged at " another element, it can be directly another
On one element or can also there is element 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 " vertical ", " level
", " on ", D score, "left", "right" and similar statement for illustrative purposes only, it is unique implementation to be not offered as
Mode.
Referring to Fig. 1 and Fig. 2, the utility model provides a kind of electronic expansion valve gear 100, the electronic expansion valve gear
100 can be adjusted to flow, can be applied to major part and are related in the equipment of Flow-rate adjustment.In the present embodiment, electronics is swollen
Swollen valve gear 100 is applied in the indoor set of multiple on-line system, and the flow of liquid refrigerants is controlled by electronic expansion valve gear 100
Regulation.Certainly, in other embodiment of the present utility model, electronic expansion valve gear 100 can be also used in other equipment.
Electronic expansion valve gear 100 of the present utility model can completely block circulation after ensure that the power down of electronic expansion valve gear 100
Passage 111, the electric expansion valve power down for effectively solving indoor set in current multi-connected machine engineering is not closed and causes multiple on-line system
There is back liquid problem, it is ensured that the performance of compressor, improve multiple on-line system reliability of operation.
In an embodiment of the present utility model, electronic expansion valve gear 100 includes pedestal 110, main valve component 120 and pair
Valve module 130.Main valve component 120 is mounted on pedestal 110 with secondary valve module 130.Circulation passage is provided with pedestal 110
111, one end of circulation passage 111 is entrance 1111, and the other end of circulation passage 111 is outlet 1112.Liquid refrigerants is from entrance
1111 enter through circulation passage 111 and are flowed out from outlet 1112.Main valve component 120 is used to adjust the flow of liquid refrigerants, secondary valve
Component 130 also can be used in adjusting the flow of liquid refrigerants, also, when main valve component 120 can not completely block circulation passage 111
When, circulation passage 111 is blocked by secondary valve module 130 completely, to avoid the circulation passage in power down of electronic expansion valve gear 100
Liquid problem is returned caused by 111 can not be blocked, and then liquid refrigerants flows still through circulation passage 111 when avoiding power down, is kept away
Exempt from compressor damage, improve the reliability of multiple on-line system.In the present embodiment, main valve component 120 is set near entrance 1111,
Secondary valve module 130 is set away from entrance 1111.That is, main valve component 120 is than secondary valve module 130 closer to circulation passage
111 entrance 1111, when liquid refrigerants flows in circulation passage 111, liquid refrigerants first contacts the Contact Pair again of main valve component 120
Valve module 130, so in electronic expansion 100 power down of valve gear, main valve component 120 can not completely block circulation passage 111, lead to
Cross secondary valve module 130 and block circulation passage 111 completely, to ensure that electronic expansion valve gear 100 can be completely closed, it is to avoid do not steam
The liquid refrigerants of hair is returned in compressor, improves the reliability of compressor operating.Meanwhile, the secondary valve group after being powered of secondary valve module 130
Part 130 can open circulation passage 111.At this point it is possible to adjust electronic expansion valve gear 100 by by main valve component 120
Flow, to ensure compressor reliability service, it is ensured that the performance of multiple on-line system；The secondary energy of valve module 130 after the power down of secondary valve module 130
Enough block circulation passage 111.Now, because secondary valve module 130 shuts circulation passage 111 completely, even if main valve component 120 has been
It is fully closed extremely to can also ensure that electron collision subtraction unit thoroughly blocks closing.
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 multiple on-line system with the controlling party of conventional air conditioning system
Formula is identical, and mainly the degree of superheat according to multiple on-line system controls the driving pulse to carry out Flow-rate adjustment.But, when indoor set power down
When, main valve stem 123 can not block circulation passage 111, then cause still have liquid refrigerants to exist during electronic expansion 100 power down of valve gear
Flowed in circulation passage 111, influence the reliability service of compressor.Therefore, electronic expansion valve gear 100 of the present utility model passes through
Increase the reliability that secondary valve module 130 ensures compressor operating during power down.When indoor set power down, the power down of secondary valve module 130, this
When, secondary valve module 130 can block circulation passage 111 so that liquid refrigerants can not be flowed by circulation passage 111, and then be kept away
Exempt from liquid refrigerants to flow into in compressor.
At present, for solve the problems, such as multi-connected machine by individually cut-out caused by return liquid, in engineering generally using separately power when,
Run into and can perform protection under more indoor set power-down conditions, in case the control of non-return liquid.But, this solution is by inspection
Survey a number of indoor set communication to go offline so as to judge its power down and report protection to shut down, this mode has certain limitation, such as
Machine is suitable in detection is how manyIf less than normal, protection may be frequently reported, it is on the high side, then may protect not in place.So, indoor set point
When opening power supply, once occur multiple indoor set power down such as floor maintenance or multiple indoor set cause when not in use, then it is multi-joint
The whole machine protection of machine is shut down and is not worked, so that influence the use of other room air conditioners to experience particularly not good especially for hotel, if many
Online whole machine not stoppage protection when, then multi-connected machine occurs back liquid problem, influences the reliability service of multi-connected machine.It is of the present utility model
Electronic expansion valve gear 100 realizes opening and the resistance of circulation passage 111 by main valve component 120 and the cooperation of secondary valve module 130
It is disconnected, and then avoid unevaporated liquid refrigerants from being back in compressor, it is ensured that compressor reliability service.Secondary valve module 130 is powered
After can open circulation passage 111, it is ensured that the flowing of liquid refrigerants.Main valve component 120 can not be blocked after the power down of main valve component 120
Circulation passage 111, circulation passage 111 can be blocked after the power down of secondary valve module 130, can so avoid falling because of main valve component 120
The problem that circulation passage 111 can not be blocked completely caused by electric, and then avoid unevaporated liquid refrigerants and cause multi-connected machine
System returns liquid, it is to avoid compressor is subject to liquid hazards, it is ensured that the performance of compressor, improves the reliability of compressor operating, and then
Improve multiple on-line system reliability of operation.Also, after ensureing the blocking of electronic expansion valve gear 100 by secondary valve module 130,
The indoor set of multiple on-line system can be with independently-powered, even if also not interfering with the fortune of the whole machine of multiple on-line system after indoor set power down
OK, while multiple on-line system reliability is ensured, it is easy to the project installation of multiple on-line system, reduces user installation expense.This
The electronic expansion valve gear 100 of utility model can be complete after secondary valve module 130 ensures the power down of electronic expansion valve gear 100
Blocking circulation passage 111, effectively solve indoor set in current multi-connected machine engineering electric expansion valve power down do not close cause it is many
There is back liquid problem in on-line system, it is ensured that the performance of compressor, improves multiple on-line system reliability of operation.
Used as a kind of 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, aid in blocking part 131 to be connected with auxiliary controls.Auxiliary blocking part 131 hinders
After cutout circulation passage 111, auxiliary blocking part 131 can be abutted with the inwall of circulation passage 111, so that liquid refrigerants can not 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 to move.Auxiliary controls are powered can make the opening circulation of auxiliary blocking part 131 logical
Road 111, auxiliary controls power down can make auxiliary blocking part 131 block circulation passage 111.Auxiliary blocking part 131 can be blocked
Or open circulation passage 111.After the indoor set power down of multiple on-line system, although main valve component 120 is maintained because of indoor set power down
In fixed aperture, but the auxiliary controls power down of secondary valve module 130 and then enable that auxiliary blocking part 131 blocks circulation and leads to
Road 111, can avoid unevaporated liquid refrigerants from returning in compressor, it is ensured that the performance of compressor, then improve multi-joint
The reliability of machine system operation.In the utility model, auxiliary blocking part 131 be valve rod, catch or other can realize resistance
The structure of the circulation passage 111 that stops.
Further, in the present embodiment, auxiliary controls are ancillary coil 132, and secondary valve module 130 also includes that auxiliary is held in the mouth
Iron 133, auxiliary armature 133 is connected with auxiliary blocking part 131.Ancillary coil 132 is powered and can adsorb armature, drives armature auxiliary
Blocking part 131 is helped to open circulation passage 111.Certainly, in other embodiment of the present utility model, auxiliary controls can also be electricity
Can control to aid in the structure of the motion of blocking part 131 after magnet or other energizations.It is indoor when multiple on-line system is normally run
Machine is in "on" position, after ancillary coil 132 is powered, by the electric current for flowing through ancillary coil 132 excitation can be produced to act on, this
Sample ancillary coil 132 can adhesive auxiliary armature 133, while aid in armature 133 move to open stream with dynamic auxiliary blocking part 131
Circulation passage 111, now, liquid refrigerants can flow in circulation passage 111, also, the flow of electronic expansion valve gear 100 leads to
Main valve component 120 is crossed to adjust.After indoor set is powered off, the power down of ancillary coil 132, the now release of ancillary coil 132 auxiliary armature
133, auxiliary armature 133 can with dynamic auxiliary blocking part 131 downwards blocking circulation passage 111, although now main valve component 120 because
Indoor set power down maintains fixed aperture, but the auxiliary controls power down of secondary valve module 130 and then causes auxiliary blocking part 131
Circulation passage 111 can be blocked, unevaporated liquid refrigerants can be avoided to return in compressor, it is ensured that the usability of compressor
Can, then improve multiple on-line system reliability of operation.
Yet further, secondary valve module 130 also includes auxiliary elastic member 134, and 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 is powered and adsorbs armature, rank
Iron can compress auxiliary elastic member 134.The power down of ancillary coil 132 discharges armature, and auxiliary elastic member 134 can reset with moving armature
And auxiliary blocking part 131 is blocked circulation passage 111.Auxiliary elastic member 134 aids in resistance after can be used in the power down of ancillary coil 132
Broken piece 131 automatically resets, it is ensured that secondary valve module 130 is reliable.When multiple on-line system is normally run, indoor set is in and is powered
State, after ancillary coil 132 is powered, can produce excitation to act on, such ancillary coil by the electric current for flowing through ancillary coil 132
132 can adhesive auxiliary armature 133, while aid in armature 133 moved with dynamic auxiliary blocking part 131 to open circulation passage 111,
Now, auxiliary armature 133 compression auxiliary elastic member 134.After indoor set is powered off, the power down of ancillary coil 132, now ancillary coil
132 release auxiliary armature 133, auxiliary armature 133 is fallen to resetting by the presence of the elastic force of ancillary coil 132, while aiding in armature
133 band dynamic auxiliary blocking parts 131 block downwards circulation passage 111, to avoid unevaporated liquid refrigerants from returning in compressor, protect
The performance of compressor is demonstrate,proved, multiple on-line system reliability of operation is then improved.In the present embodiment, auxiliary elastic member 134
It is spring.Certainly, in other embodiment of the present utility model, auxiliary elastic member 134 can also have elastic force for other
Structure.In the utility model, one end of auxiliary elastic member 134 can be fixed on parts static in secondary valve module 130.
It is preferred that 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 can be moved with dynamic auxiliary blocking part 131 in ancillary coil 132.This
Sample ensure that ancillary coil 132 produces enough magnetic field adhesive auxiliary armature 133, while, moreover it is possible to ensure auxiliary armature 133 with
Aid in the running orbit of blocking part 131, it is to avoid glance off.Also, the structure of electronic expansion valve gear 100 of the present utility model
Simply, it is easily installed.
Used as a kind of 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 of ancillary coil 132 is to obtain what electric and dead electricity was realized by control mainboard with power down.
Control mainboard is the master control unit of indoor set.When multiple on-line system normal work, the control mainboard of indoor set obtains electric, now,
Control mainboard can realize that auxiliary controls are powered, and then realize that auxiliary blocking part 131 opens circulation passage 111.Work as indoor set
During power-off, control mainboard dead electricity causes auxiliary controls power down, and then auxiliary blocking part 131 can block circulation passage 111, keep away
Exempt from unevaporated liquid refrigerants to be back in compressor, it is ensured that the performance of compressor, improve the reliability of multiple on-line system.
Further, auxiliary controls are also electrically connected by relay with control mainboard.
Meanwhile, control mainboard can also adjust the aperture of main valve component 120, also, control mainboard can be according to main valve component
120 aperture controls the energization and power down of auxiliary controls.When multiple on-line system is normally run, typically according to indoor set itself
When control is closed electronic expansion valve gear 100 such as refrigeration reaches preset temperature under special circumstances, make electronic expansion valve gear 100
In shutting state.But, as the use time of electronic expansion valve gear 100 is lengthened, may exist and close not dead situation.
Therefore, when electronic expansion valve gear 100 of the present utility model ensures that electronic expansion valve gear 100 is long by secondary valve module 130
Between blocking when using, it is ensured that the reliability of electronic expansion valve gear 100, then ensure the performance of multiple on-line system.
Electronic expansion valve gear 100 of the present utility model has default step Numerical, and it is master set in advance to preset step Numerical
Valve module 120 closes the step Numerical of circulation passage 111.Control mainboard can adjust the actual step number of the aperture of main valve component 120
Value.Relatively can interpolate that electronic expansion valve gear 100 is in blocking state also by actual step Numerical and default step Numerical
It is in open mode.Compare actual step Numerical and default step Numerical, when actual step Numerical is more than default step Numerical, boost line
Circle 132 is powered, and adjusts flow by main valve component 120；When actual step Numerical is less than or equal to default step Numerical, ancillary coil
132 power down, so that auxiliary blocking part 131 blocks circulation passage 111 completely, now, even if main valve component 120 to shut completely,
But because the auxiliary blocking part 131 of secondary valve module 130 blocks circulation passage 111 completely, it can be ensured that electronic expansion valve gear 100
Thoroughly block, it is to avoid liquid refrigerant circulates, improve the performance of multiple on-line system.Meanwhile, control mainboard can adjust master
The actual step Numerical of the aperture of valve module 120 is to detect that the real work signal of indoor set is obtained according to sensor.Indoor set
Real work signal is detected according to sensor, and real work signal is fed back into control mainboard, control mainboard is according to actual work
Make the actual step Numerical of the aperture of Signal Regulation main valve component 120.
Generally, the action step number of the break-in facility of electric expansion valve can be selected according to the requirement of different multiple on-line systems
Select.Such as, it is generally acknowledged that the following electronic expansion valve gear 100 of 0 step to shut state, then presets step in some multiple on-line systems
Numerical value is 0 step, then can be powered according to following ancillary coil 132 power down of 0 step, 0 step above ancillary coil 132 when judging.Again such as,
It is generally acknowledged that the following electronic expansion valve gear 100 of 50 steps is to shut state in some multiple on-line systems, then presetting step Numerical is
50 steps, then can be powered when judging according to following ancillary coil 132 power down of 50 steps, 50 step above ancillary coils 132.It is logical swollen by electronics
The flow formula of swollen valve gear 100 understands, in the step number where less than turning point, electronic expansion valve gear 100 begins to place
In the state of blocking.
The utility model additionally provides a kind of control method of electronic expansion valve gear 100, is applied in above-described embodiment
Electronic expansion valve gear 100, including：
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；
During secondary 130 power down of valve module, the blocking circulation passage 111 of secondary valve module 130.
Circulation passage 111 is blocked by the secondary valve module 130 of electronic expansion valve gear 100 completely, to ensure electronic expansion
Valve gear 100 can be completely closed, even if main valve component 120 can also ensure that electron collision subtraction unit thoroughly cuts to shut completely
It is disconnected to close, it is to avoid unevaporated liquid refrigerants is returned in compressor, improve the reliability of compressor operating.
Further, secondary valve module 130 can open or close the circulation passage 111 of pedestal 110 and comprise the following steps：
Control mainboard is powered by the auxiliary controls of Control pair valve module 130, and auxiliary controls being capable of adhesive
The auxiliary armature 133 of secondary valve module 130, makes auxiliary armature 133 drive the auxiliary blocking part 131 of secondary valve module 130 to open circulation
Passage 111；
By Control auxiliary controls power down, auxiliary controls can discharge auxiliary armature 133 to control mainboard, 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 easy to electronics
The opening of expansion valve device 100 with block, improve the reliability of electronic expansion valve gear 100.Also, electricity is realized by empty mainboard
The control of sub- expansion valve device 100, programme-control is simple, without extra controller, reduces cost.
Used as a kind of embodiment, the control method of electronic expansion valve gear 100 also includes：
The aperture of control mainboard regulation 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 and can protect by control mainboard
Card electronic expansion valve gear 100 is prolonged to use safety, the service life of extension electronic expansion valve gear 100.
Further, the aperture between regulation auxiliary blocking part 131 and circulation passage 111 comprises the following steps：
Control mainboard controls the energization of auxiliary controls to comprise the following steps with power down according to the aperture of main valve component 120：
Control mainboard can calculate the actual step Numerical of the aperture of main valve component 120；
Be stored with control mainboard main valve component 120 aperture default step Numerical, preset step Numerical be the main valve group
Part 120 closes the step Numerical of circulation passage 111；
Compare default step Numerical and actual step Numerical；
If actual step Numerical is more than default step Numerical, control mainboard control ancillary coil 132 is powered；
If actual step Numerical is less than or equal to default step Numerical, the control mainboard control power down of ancillary coil 132.
When actual step Numerical is more than default step Numerical, ancillary coil 132 is powered, and adjusts stream by main valve component 120
Amount, the normal work of electronic expansion valve gear 100；When actual step Numerical is less than or equal to default step Numerical, ancillary coil 132 falls
Electricity, so that auxiliary blocking part 131 blocks circulation passage 111 completely, now, even if main valve component 120 to 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 thoroughly cuts
It is disconnected, it is to avoid liquid refrigerant circulates, improve the performance of multiple on-line system.
Yet further, energization and the power down that control mainboard controls auxiliary controls according to the aperture of main valve component 120 are also
Comprise the following steps：
Sensor can detect real work signal, and real work signal is fed back into control mainboard；
Control mainboard can be according to the actual step Numerical of the aperture of real work signal of change main valve component 120, to adjust
The aperture of main valve component 120.
The actual step Numerical that control mainboard can adjust the aperture of main valve component 120 is to detect indoor set according to sensor
Real work signal is obtained.Indoor set detects real work signal according to sensor, and real work signal is fed back into control
Mainboard processed, control mainboard obtains the actual step Numerical of the aperture of main valve component 120 according to real work signal, adjusts main valve component
120 aperture.
The utility model additionally provides the electricity in a kind of multiple on-line system, including multiple indoor sets and multiple above-described embodiments
Sub- expansion valve device 100.Multiple electronic expansion valve gears 100 are respectively arranged in multiple indoor sets.It is of the present utility model multi-joint
Machine system avoids occurring back liquid problem during power down by electronic expansion valve gear 100, it is to avoid compressor damage, improves multi-connected machine system
System reliability of operation.Also, multiple indoor sets can be independently-powered, even if part indoor set power down does not interfere with multi-connected machine system yet
The whole machine operation of system.
Further, there is control mainboard, control mainboard can be with the auxiliary control of electronic expansion valve gear 100 in indoor set
Product is electrically connected.Control mainboard is the master control unit of indoor set, when multiple on-line system normal work, the control mainboard of indoor set
Obtain electric, now, control mainboard can realize that auxiliary controls are powered, then realize that auxiliary blocking part 131 opens circulation passage
111.When indoor set is powered off, control mainboard dead electricity causes auxiliary controls power down, and then auxiliary blocking part 131 can block stream
Circulation passage 111, it is to avoid unevaporated liquid refrigerants is back in compressor, it is ensured that the performance of compressor, improves multi-connected machine
The reliability of system.Yet further, relay is additionally provided with indoor set, relay is arranged at auxiliary controls and is led in control
Between plate.Energization and power down that control mainboard passes through Control auxiliary controls.Also, control mainboard can also adjust main valve
The aperture of component 120, control mainboard controls the energization and power down of auxiliary controls according to the aperture of main valve component 120.
Also, the default step Numerical of the aperture of the main valve component 120 that is stored with control control mainboard.Control mainboard adjusts main valve
When the actual step Numerical of the actual step Numerical of the aperture of component 120 is more than default step Numerical, the auxiliary of electronic expansion valve gear 100
Control piece is powered.The actual step Numerical of the actual step Numerical of the aperture of control mainboard regulation main valve component 120 is less than or equal to default
During step Numerical, the auxiliary controls power down of electronic expansion valve gear 100.The reality of the aperture of control mainboard regulation 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 passage 111 completely, now, even if main valve component 120 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 blocked, it is to avoid liquid refrigerant
Circulation, improves the performance of multiple on-line system.
Further, also there is sensor, sensor is electrically connected with control mainboard in indoor set.Sensor can be detected
The real work signal of indoor set, and real work signal is fed back into controller, controller is according to real work signal of change
The actual step Numerical of the aperture of the main valve component 120 of electronic expansion valve gear 100 is adjusting the aperture of main valve component 120.Pass through
Sensor detects the real work signal of indoor set, and in the present embodiment, real work signal refers to the actual temperature of indoor set,
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, to ensure the cryogenic temperature of indoor set, it is to avoid excessively refrigeration occur, improve
Comfort level when user uses.
Above example only expresses several embodiments of the present utility model, and its description is more specific and detailed, but simultaneously
Therefore the limitation to the utility model the scope of the claims can not be interpreted as.It should be pointed out that for the ordinary skill of this area
For personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these belong to this
The protection domain of utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (13)
1. a kind of electronic expansion valve gear, it is characterised in that including：
Pedestal (110), circulation passage (111) is provided with the pedestal (110)；
Main valve component (120), is installed on the pedestal (110)；And
Secondary valve module (130), is installed on the pedestal (110)；The secondary valve module (130) can open the stream after being powered
Circulation passage (111)；The circulation passage (111) can be blocked after the secondary valve module (130) power down.
2. electronic expansion valve gear according to claim 1, it is characterised in that the secondary valve module (130) is including being used for
The auxiliary blocking part (131) for blocking the circulation passage (111) and the auxiliary controls for controlling auxiliary blocking part (131),
Auxiliary blocking part (131) is connected with the auxiliary controls；
The auxiliary controls are powered can make auxiliary blocking part (131) open the circulation passage (111), the auxiliary
Control piece power down can make auxiliary blocking part (131) block the circulation passage (111).
3. electronic expansion valve gear according to claim 2, it is characterised in that the secondary valve module (130) also includes auxiliary
Armature (133) is helped, the auxiliary controls are ancillary coil (132), described to aid in armature (133) and the auxiliary blocking part
(131) connect；
The ancillary coil (132) is powered and can adsorb the armature, makes the armature drive auxiliary blocking part (131) to beat
Open the circulation passage (111).
4. electronic expansion valve gear according to claim 3, it is characterised in that the secondary valve module (130) also includes auxiliary
One end of elastic component (134), the auxiliary elastic member (134) is helped to be fixed in the secondary valve module (130), the assistant spring
The other end of part (134) is connected with auxiliary armature (133)；
The ancillary coil (132) is powered and 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) can drive the armature to reset
And auxiliary blocking part (131) is blocked the circulation passage (111).
5. electronic expansion valve gear according to claim 4, it is characterised in that the ancillary coil (132) is hollow knot
Structure, the auxiliary elastic member (134) is mounted in the ancillary coil (132) with auxiliary armature (133)；
Auxiliary armature (133) can drive auxiliary blocking part (131) motion in the ancillary coil (132).
6. electronic expansion valve gear according to claim 2, it is characterised in that the auxiliary controls can be led with control
Plate is electrically connected, and the control mainboard is used to control the energization and power down of the auxiliary controls；
And the control mainboard can also adjust 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. electronic expansion valve gear according to claim 6, it is characterised in that the auxiliary controls also pass through relay
Electrically connected with the control mainboard.
8. a kind of multiple on-line system, it is characterised in that including multiple indoor sets and multiple as described in any one of claim 1 to 7
Electronic expansion valve gear (100)；
Multiple electronic expansion valve gears (100) are respectively arranged in multiple indoor sets.
9. multiple on-line system according to claim 8, it is characterised in that there is control mainboard in the indoor set, it is described
Control mainboard can be electrically connected with the auxiliary controls of the electronic expansion valve gear (100).
10. multiple on-line system according to claim 9, it is characterised in that relay, institute are additionally provided with the indoor set
State relay and be arranged at the auxiliary controls between the control mainboard；
Energization and power down that the control mainboard passes through auxiliary controls described in the Control.
11. multiple on-line systems according to claim 10, it is characterised in that the control mainboard can also adjust the main valve
The aperture of component (120), the control mainboard controls the logical of the auxiliary controls according to the aperture of the main valve component (120)
Electricity and power down.
12. multiple on-line systems according to claim 11, it is characterised in that be stored with the main valve in the control mainboard
The default step Numerical of the aperture of component (120)；
The control mainboard adjusts the actual step Numerical of the actual step Numerical of the aperture of the main valve component (120) more than described pre-
If during step Numerical, the auxiliary controls of the electronic expansion valve gear (100) are powered；
The actual step Numerical that the control mainboard adjusts the actual 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).
13. multiple on-line systems according to claim 12, it is characterised in that also there is sensor, institute in the indoor set
Sensor is stated to be electrically connected with the control mainboard；
The sensor can detect the real work signal of the indoor set, and the real work signal is fed back into described
Controller, the main valve component of controller electronic expansion valve gear (100) according to the real work signal of change
(120) the actual 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 |
|---|---|---|---|
| CN201621254840.1U CN206206742U (en) | 2016-11-14 | 2016-11-14 | Electronic expansion valve device and multi-split system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621254840.1U CN206206742U (en) | 2016-11-14 | 2016-11-14 | Electronic expansion valve device and multi-split system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439171A (en) * | 2016-11-14 | 2017-02-22 | 珠海格力电器股份有限公司 | Electronic expansion valve device, control method thereof and multi-split system |
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2016
- 2016-11-14 CN CN201621254840.1U patent/CN206206742U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439171A (en) * | 2016-11-14 | 2017-02-22 | 珠海格力电器股份有限公司 | Electronic expansion valve device, control method thereof and multi-split system |
| CN106439171B (en) * | 2016-11-14 | 2019-07-05 | 珠海格力电器股份有限公司 | Electronic expansion valve device, control method thereof and multi-split system |
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