CN106440562A - Air conditioner and electronic expansion valve thereof - Google Patents
Air conditioner and electronic expansion valve thereof Download PDFInfo
- Publication number
- CN106440562A CN106440562A CN201610989820.7A CN201610989820A CN106440562A CN 106440562 A CN106440562 A CN 106440562A CN 201610989820 A CN201610989820 A CN 201610989820A CN 106440562 A CN106440562 A CN 106440562A
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- electromagnetism part
- expansion valve
- electric control
- electric expansion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000003507 refrigerant Substances 0.000 claims abstract description 6
- 239000002826 coolant Substances 0.000 claims description 18
- 239000000853 adhesive Substances 0.000 claims description 8
- 230000001070 adhesive effect Effects 0.000 claims description 8
- 230000004888 barrier function Effects 0.000 claims description 3
- 238000009833 condensation Methods 0.000 abstract description 7
- 230000005494 condensation Effects 0.000 abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 21
- 239000003643 water by type Substances 0.000 description 6
- 230000005611 electricity Effects 0.000 description 5
- 238000004378 air conditioning Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
- F25B41/34—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
- F25B2600/2513—Expansion valves
-
- 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)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention discloses an electronic expansion valve. The electronic expansion valve is provided with a valve shell and a runner and further comprises an electric control device. The runner flows through the electric control device. After the electric control device is turned off, the runner can be stopped. After the electric control device is turned on, the position, passing the electric control device, of the runner is turned on. If sudden power failures happen, the electric control device plays a role, the runner is stopped after the electric control device is turned off, and a refrigerant cannot flow through the position where the runner passes the electric control device. At the moment, the refrigerating circulation refrigerant cannot circulate in an inner machine in power failure again, and accordingly the inner machine in power failure is prevented from generating a large amount of condensation water.
Description
Technical field
The present invention relates to air-conditioning part technical field, more particularly, it relates to a kind of air-conditioner and its electric expansion valve.
Background technology
At present, electric expansion valve used in air conditioning system, still keep in air conditioning unit unexpected power-off with power-off before phase
Same step number, that is, belong to open-circuit condition.And in multi-joint unit, the unexpected power-off of machine in one of, in remaining, machine does as usual and transports
During row, now in power-off the electric expansion valve of machine still in open-circuit condition, the coolant of kind of refrigeration cycle still can flow through in this power-off
Machine, and in power-off, the blower fan of machine is turned off, and machine in power-off so can be led to produce a large amount of condensation waters.
In sum, how to efficiently solve coolant to enter the interior machine circulation of power-off and produce the problem of a large amount of condensation waters,
It is current those skilled in the art's urgent problem.
Content of the invention
In view of this, first purpose of the present invention is to provide a kind of electric expansion valve, the structure of this electric expansion valve
Design can efficiently solve coolant and enter the interior machine circulation of power-off and produce the problem of a large amount of condensation waters, second of the present invention
Purpose is to provide a kind of air-conditioner including above-mentioned electric expansion valve.
In order to reach above-mentioned first purpose, the present invention provides following technical scheme：
A kind of electric expansion valve, it has valve chest and stream, also includes electric control gear, and described stream flows through described automatically controlled
Device, can block described stream after this electric control gear power-off；After the energising of this electric control gear, described stream is through described automatically controlled dress
The position put is open-minded.
Preferably, in above-mentioned electric expansion valve, described electric control gear includes：
The first electromagnetism part being oppositely arranged and the second electromagnetism part；
First permanent magnet and the second permanent magnet, and described first permanent magnet is arranged at the close described of described first electromagnetism part
Second electromagnetism part side, and described second permanent magnet is arranged at the close described first electromagnetism part side of described second electromagnetism part；
When described first electromagnetism part and the energising of the second electromagnetism part, described first electromagnetism part is with the first permanent magnet adhesive and described
Second electromagnetism part and the second permanent magnet adhesive, have gap for coolant stream between described first permanent magnet and the second permanent magnet
Cross；When described first electromagnetism part and the second electromagnetism part power-off, described first permanent magnet and the second permanent magnet adhesive are to block stream.
Preferably, in above-mentioned electric expansion valve, described first electromagnetism part and the second electromagnetism part are solenoid.
Preferably, in above-mentioned electric expansion valve, described first permanent magnet and the second permanent magnet are Magnet.
Preferably, in above-mentioned electric expansion valve, the overall all curved tabular of described first electromagnetism part and the second electromagnetism part.
Preferably, in above-mentioned electric expansion valve, described first permanent magnet and the second permanent magnet are semi-cylindrical.
Preferably, in above-mentioned electric expansion valve, the upper side and lower side of described first permanent magnet and the second permanent magnet all covers
There is insulating barrier.
Preferably, in above-mentioned electric expansion valve, described electric control gear is located at the refrigerant exit of described valve chest.
Preferably, in above-mentioned electric expansion valve, also include being arranged at the support member on the downside of described electric control gear.
A kind of air-conditioner, including the electric expansion valve as any one of above-mentioned.
The electric expansion valve that the present invention provides includes valve chest and stream, it is preferred that emphasis is, this electric expansion valve also includes electricity
Control device, and stream flows through electric control gear.Wherein stream can be blocked after electric control gear power-off, that is, after electric control gear power-off,
Stream is blocked coolant through the position of electric control gear by electric control gear and can not flow through.After the energising of this electric control gear, stream is through electricity
The position of control device is opened coolant and can be flow through, now electric expansion valve normal work.
During the electromagnetic valve that the application present invention provides, if unexpected power-off, electric control gear plays a role, and hinders after electric control gear power-off
Cutout road is so that coolant can not flow through the position through electric control gear for the stream.Now the coolant of kind of refrigeration cycle can not be again in power-off
Interior machine in circulate, and then avoid the interior machine of power-off and produce a large amount of condensation waters.
In order to reach above-mentioned second purpose, present invention also offers a kind of air-conditioner, this air-conditioner includes any of the above-described
Plant electric expansion valve.Because above-mentioned electric expansion valve has above-mentioned technique effect, there is the air-conditioner of this electric expansion valve
Should have corresponding technique effect.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, acceptable
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the sectional view of electric expansion valve during energising provided in an embodiment of the present invention；
Fig. 2 is the partial enlarged drawing of a-quadrant in Fig. 1；
Fig. 3 is the sectional view of electric expansion valve during power-off provided in an embodiment of the present invention；
Fig. 4 is the partial enlarged drawing in B region in Fig. 3.
In figures 1-4：
1- the first electromagnetism part, 2- first permanent magnet, 3- support member, 4- stream, 5- second permanent magnet, 6- the second electromagnetism part,
7- valve chest.
Specific embodiment
First purpose of the present invention is to provide a kind of electric expansion valve, and the structure design of this electric expansion valve can have
Effect ground solves the problems, such as that coolant enters the interior machine circulation of power-off and produces a large amount of condensation waters, and second object of the present invention is to provide
A kind of air-conditioner including above-mentioned electric expansion valve.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of not making creative work
Embodiment, broadly falls into the scope of protection of the invention.
The present invention provides the electric expansion valve of embodiment to include valve chest 7 and stream 4, it is preferred that emphasis is, this electric expansion valve
Also include electric control gear, and stream 4 flows through electric control gear.Wherein stream 4 can be blocked after electric control gear power-off, i.e. automatically controlled dress
After putting power-off, stream 4 is blocked coolant through the position of electric control gear by electric control gear and can not flow through.After the energising of this electric control gear,
Stream 4 is opened coolant through the position of electric control gear and can be flow through, now electric expansion valve normal work.
When applying electromagnetic valve provided in an embodiment of the present invention, if unexpected power-off, electric control gear plays a role, and electric control gear breaks
Stream 4 is blocked so that coolant can not flow through the position through electric control gear for the stream 4 after electricity.Now the coolant of kind of refrigeration cycle can not
Circulate in the interior machine of power-off again, and then avoid the interior machine of power-off and produce a large amount of condensation waters.
Refer to Fig. 1-Fig. 4, electric control gear can include the first electromagnetism part 1, the second electromagnetism part 6, the first permanent magnet 2 and
Two permanent magnets 5.Wherein, the first electromagnetism part 1 and the second electromagnetism part 6 are oppositely arranged, and the first permanent magnet 2 is arranged at the first electromagnetism part 1
Near the second electromagnetism part 6 side, the second permanent magnet 5 be arranged at the second electromagnetism part 6 near the first electromagnetism part 1 side.
I.e. the first permanent magnet 2 and the second permanent magnet 5 are located between the first electromagnetism part 1 and the second electromagnetism part 6.
When the first electromagnetism part 1 and the second electromagnetism part 6 are energized, the first electromagnetism part 1 is with the first permanent magnet 2 adhesive and second electric
Magnetic part 6 and the second permanent magnet 5 adhesive, now have gap and flow through for coolant between the first permanent magnet 2 and the second permanent magnet 5.
When i.e. the first electromagnetism part 1 and the second electromagnetism part 6 are energized, the first electromagnetism part 1 generation magnetic is attracting with the first permanent magnet 2, the second electricity
Magnetic part 6 generation magnetic is attracting with the second permanent magnet 5, and suction makes the first permanent magnet 2 and the second permanent magnet 5 be relatively distant from, the
One permanent magnet 2 and the second permanent magnet 5 have gap between the two, and this gap is the local of stream 4, and now coolant can flow through
Gap between first permanent magnet 2 and the second permanent magnet 5, that is, stream 4 flow through this electric control gear position open-minded.
When the first electromagnetism part 1 and the second electromagnetism part 6 power-off, the first permanent magnet 2 and the second permanent magnet 5 adhesive are to block stream
Road 4.I.e. the first electromagnetism part 1 and during the second electromagnetism part 6 power-off, the first electromagnetism part 1 and the second electromagnetism part 6 no longer have magnetic, and
One electromagnetism part 1 and the second electromagnetism part 6 no longer attract the first permanent magnet 2 and the second permanent magnet 5, now the first permanent magnet 2 and second
Permanent magnet 5 attracts each other, and final first permanent magnet 2 and the second permanent magnet 5 are bonded to each other, and now the first permanent magnet 2 and second is forever
Magnet 5 blocks stream 4, and coolant can not flow through.
Preferably, the first electromagnetism part 1 and the second electromagnetism part 6 can be solenoid.Certainly, this first electromagnetism part 1 He
Second electromagnetism part 6 can also be electric magnet, is not limited thereto.
First permanent magnet 2 and the second permanent magnet 5 can be Magnet.Magnet with low cost and be easy to process, certain the
One permanent magnet 2 and the second permanent magnet 5 can also be that Magnetitum etc. has magnetic object, be not limited thereto.
For the ease of connecting and saving installing space, the first electromagnetism part 1 and the second electromagnetism part 6 can overall all curved plates
Shape, such first electromagnetism part 1 and the second electromagnetism part 6 can all be fitted with the inner surface of valve chest 7 or outer with valve chest 7
Surface in alignment is arranged.Further, the first permanent magnet 2 and the second permanent magnet 5 can be semi-cylindrical, such first permanent magnet
2 and second the cylinder of permanent magnet 5 can distinguish and directly fit with the inner side of the first electromagnetism part 1 and the second electromagnetism part 6.Certainly,
One electromagnetism part 1, the second electromagnetism part 6, the first permanent magnet 2 and the second permanent magnet 5 can also be other shapes, such as square column type,
This is not construed as limiting.
The function of adjusting for electric expansion valve step number when not affecting normally to run, can also be in the first permanent magnet 2 and the
The upper side and lower side of two permanent magnets 5 is all covered with insulating barrier, herein the upper side and lower side of the first permanent magnet 2 and the second permanent magnet 5
The upper side and lower side of first permanent magnet 2 and the second permanent magnet 5 when finger electric expansion valve is in running order.
Preferably, electric control gear may be located at the refrigerant exit of valve chest 7, and that is, electric control gear is located at the outer of valve chest 7
Side bottom.Further, this electric expansion valve also includes being arranged at the support member 3 on the downside of electric control gear, support member 3 and the first electricity
Magnetic part 1, the bottom of the second electromagnetism part 6, the first permanent magnet 2 and the second permanent magnet 5 are all connected with, to support above-mentioned part.
Certainly, electric control gear can also be located at the inside of valve chest 7, or at the refrigerant import of valve chest 7, here
It is not construed as limiting.
In addition, electric control gear can also include the first electromagnetism part 1, the second electromagnetism part 6, be arranged on the first electromagnetism part 1 and
Elastic component between two electromagnetism parts 6, after the first electromagnetism part 1 and the second electromagnetism part 6 power-off, the first electromagnetism part 1 and the second electromagnetism
Part 6 magnetic disappears, and the first electromagnetism part 1 and the second electromagnetism part 6 are acted on by elastic component and bonded to each other block stream 4.When first
When electromagnetism part 1 and the second electromagnetism part 6 energising, the first electromagnetism part 1 and the second electromagnetism part 6 are respectively provided with magnetic, the first electromagnetism part 1 and the
Two electromagnetism parts 6 are mutually exclusive to be made to have gap between the two and flows through for coolant.
Based on the electric expansion valve providing in above-described embodiment, present invention also offers a kind of air-conditioner, this air-conditioner bag
Include any one electric expansion valve in above-described embodiment.Employ the electric expansion valve in above-described embodiment due to this air-conditioner,
So the beneficial effect of this air-conditioner refer to above-described embodiment.
In this specification, each embodiment is described by the way of going forward one by one, and what each embodiment stressed is and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention.
Multiple modifications to these embodiments will be apparent from for those skilled in the art, as defined herein
General Principle can be realized without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention
It is not intended to be limited to the embodiments shown herein, and be to fit to and principles disclosed herein and features of novelty phase one
The scope the widest causing.
Claims (10)
1. a kind of electric expansion valve, it has valve chest (7) and stream (4) it is characterised in that also including electric control gear, described
Stream (4) flows through described electric control gear, can block described stream (4) after this electric control gear power-off；After the energising of this electric control gear,
Described stream (4) is open-minded through the position of described electric control gear.
2. electric expansion valve according to claim 1 is it is characterised in that described electric control gear includes：
The first electromagnetism part (1) being oppositely arranged and the second electromagnetism part (6)；
First permanent magnet (2) and the second permanent magnet (5), and described first permanent magnet (2) is arranged at described first electromagnetism part (1)
Near described second electromagnetism part (6) side, and described second permanent magnet (5) is arranged at the close described of described second electromagnetism part (6)
First electromagnetism part (1) side；
When described first electromagnetism part (1) and the energising of the second electromagnetism part (6), described first electromagnetism part (1) is inhaled with the first permanent magnet (2)
Close and described second electromagnetism part (6) and the second permanent magnet (5) adhesive, between described first permanent magnet (2) and the second permanent magnet (5)
There is gap and flow through for coolant；When described first electromagnetism part (1) and the second electromagnetism part (6) power-off, described first permanent magnet (2)
With the second permanent magnet (5) adhesive to block stream (4).
3. electric expansion valve according to claim 2 is it is characterised in that described first electromagnetism part (1) and the second electromagnetism part
(6) it is solenoid.
4. electric expansion valve according to claim 2 is it is characterised in that described first permanent magnet (2) and the second permanent magnet
(5) it is Magnet.
5. electric expansion valve according to claim 2 is it is characterised in that described first electromagnetism part (1) and the second electromagnetism part
(6) overall all curved tabular.
6. electric expansion valve according to claim 5 is it is characterised in that described first permanent magnet (2) and the second permanent magnet
(5) it is semi-cylindrical.
7. electric expansion valve according to claim 2 is it is characterised in that described first permanent magnet (2) and the second permanent magnet
(5) the upper side and lower side is all covered with insulating barrier.
8. the electric expansion valve according to any one of claim 1-7 is it is characterised in that described electric control gear is positioned at described
At the refrigerant exit of valve chest (7).
9. electric expansion valve according to claim 8 is it is characterised in that also include being arranged on the downside of described electric control gear
Support member (3).
10. a kind of air-conditioner is it is characterised in that include electric expansion valve as claimed in any one of claims 1-9 wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610989820.7A CN106440562B (en) | 2016-11-10 | 2016-11-10 | Air conditioner and electronic expansion valve thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610989820.7A CN106440562B (en) | 2016-11-10 | 2016-11-10 | Air conditioner and electronic expansion valve thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106440562A true CN106440562A (en) | 2017-02-22 |
| CN106440562B CN106440562B (en) | 2022-03-01 |
Family
ID=58206845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610989820.7A Active CN106440562B (en) | 2016-11-10 | 2016-11-10 | Air conditioner and electronic expansion valve thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106440562B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018177284A1 (en) * | 2017-03-28 | 2018-10-04 | 浙江三花智能控制股份有限公司 | Electronic expansion valve and refrigeration system having same |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4583374A (en) * | 1983-10-21 | 1986-04-22 | Veb Kombinat Luft-Und Kaltetechnik | Temperature and liquid level control system for fluid cycles |
| CN2292951Y (en) * | 1997-02-03 | 1998-09-30 | 黄宝华 | Electromagnetic valve |
| CN2379653Y (en) * | 1999-06-02 | 2000-05-24 | 黄俊诚 | Improved structure electromagnetic valve |
| CN103512288A (en) * | 2012-06-20 | 2014-01-15 | 浙江三花股份有限公司 | Electronic expansion valve |
| CN103542647A (en) * | 2012-07-13 | 2014-01-29 | 浙江三花股份有限公司 | Bidirectional throttling electronic expansion valve |
| CN206176832U (en) * | 2016-11-10 | 2017-05-17 | 珠海格力电器股份有限公司 | Air conditioner and electronic expansion valve thereof |
-
2016
- 2016-11-10 CN CN201610989820.7A patent/CN106440562B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4583374A (en) * | 1983-10-21 | 1986-04-22 | Veb Kombinat Luft-Und Kaltetechnik | Temperature and liquid level control system for fluid cycles |
| CN2292951Y (en) * | 1997-02-03 | 1998-09-30 | 黄宝华 | Electromagnetic valve |
| CN2379653Y (en) * | 1999-06-02 | 2000-05-24 | 黄俊诚 | Improved structure electromagnetic valve |
| CN103512288A (en) * | 2012-06-20 | 2014-01-15 | 浙江三花股份有限公司 | Electronic expansion valve |
| CN103542647A (en) * | 2012-07-13 | 2014-01-29 | 浙江三花股份有限公司 | Bidirectional throttling electronic expansion valve |
| CN206176832U (en) * | 2016-11-10 | 2017-05-17 | 珠海格力电器股份有限公司 | Air conditioner and electronic expansion valve thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018177284A1 (en) * | 2017-03-28 | 2018-10-04 | 浙江三花智能控制股份有限公司 | Electronic expansion valve and refrigeration system having same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106440562B (en) | 2022-03-01 |
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