CN104565476A - Electronic expansion valve - Google Patents
Electronic expansion valve Download PDFInfo
- Publication number
- CN104565476A CN104565476A CN201310518283.4A CN201310518283A CN104565476A CN 104565476 A CN104565476 A CN 104565476A CN 201310518283 A CN201310518283 A CN 201310518283A CN 104565476 A CN104565476 A CN 104565476A
- Authority
- CN
- China
- Prior art keywords
- chamber
- liquid
- expansion valve
- electric expansion
- valve body
- 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
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Classifications
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- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
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- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0254—Construction of housing; Use of materials therefor of lift valves with conical shaped valve members
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- 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
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- 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
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
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- 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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
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- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Magnetically Actuated Valves (AREA)
- Details Of Valves (AREA)
Abstract
The invention provides an electronic expansion valve. The electronic expansion valve comprises a valve body, a second chamber, a third chamber, a valve core and a first liquid channel hole, wherein the first chamber is formed in the valve body; a liquid inlet and a liquid outlet are oppositely formed in the two ends of the valve body; the liquid inlet and the liquid outlet are formed coaxially along the center axis of the valve body; the second chamber is formed in the first chamber; a coil is arranged in the second chamber; the third chamber passes through the second chamber; the inlet end of the third chamber is communicated with the liquid inlet; the outlet end of the third chamber is communicated with the liquid outlet; the inlet end of the third chamber and the outlet end of the third chamber are formed coaxially; the valve core capable of moving along the center axis is arranged in the third chamber; the first liquid channel hole is formed in the chamber wall of the third chamber; the first chamber is communicated with the liquid inlet through the first liquid channel hole. According to the electronic expansion valve, the flowing direction of liquid in the valve body and a direction along which the liquid flows in/out of the valve body are kept at the same straight line, so that the liquid flowing resistance and water head losing can be effectively reduced; meanwhile, the problem of noise can be solved, and installation is easy.
Description
Technical field
The present invention relates to field of air conditioning, especially, relate to a kind of electric expansion valve.
Background technique
Throttle element is refrigeration system important component part, and common throttle element has capillary tube, heating power expansion valve, electric expansion valve.Electric expansion valve because of its reaction velocity fast, degree of regulation advantages of higher is increasingly extensive in the application of air conditioner refrigerating field.But due to the restriction of existing electronic expansion valve structure form, it is generally arranged on air conditioner outdoor machine or indoor set.Inner or external to from the not far box of indoor set for being arranged on indoor set multiple on-line system, there is following problem: existing electric expansion valve liquid outlet and Way in are generally 90 °, flow resistance is large, has larger losing along stroke pressure.
Summary of the invention
The object of the invention is to provide a kind of electric expansion valve, loses larger technical problem to solve existing electric expansion valve liquid along stroke pressure.
For achieving the above object, the invention provides a kind of electric expansion valve, comprise valve body, form the first chamber in valve body, the two ends of valve body are relatively set with liquid inlet and liquid outlet, and liquid inlet and liquid outlet are arranged along the central axis coaxial of valve body; Second chamber, is arranged in the first chamber, is provided with coil in the second chamber; 3rd chamber, is applied in the second chamber, and the entrance point of the 3rd chamber is connected with liquid inlet, and the outlet end of the 3rd chamber is connected with liquid outlet, and the entrance point of the 3rd chamber and the outlet end of the 3rd chamber are coaxially arranged; The moveable spool of centrally axis is provided with in 3rd chamber; First liquid port hole, be arranged on the chamber wall of the 3rd chamber, the first chamber is connected with liquid inlet by first liquid port hole.
Further, spool is provided with the second liquid port hole being parallel to central axis and extending.
Further, the chamber wall of the 3rd chamber is provided with sliding-rail groove, and spool slides along sliding-rail groove.
Further, the inwall of sliding-rail groove is provided with oil storage hole.
Further, the internal chamber wall of the 3rd chamber is provided with the Returnning spring abutted against with spool.
Further, the first end of the second chamber is provided with sealed end cover plate.
Further, the outlet end place of the 3rd chamber is provided with seal ring.
Further, the location snap ring for position reset spring is provided with in the 3rd chamber.
Further, filter is provided with in liquid inlet and liquid outlet.
Further, electric expansion valve also comprises controller, the electrical current size of controller control coil and time.
The present invention has following beneficial effect:
By liquid movement direction and liquid inlet-outlet valve body direction in valve body are kept point-blank, can effective less liquid flowing resistance and along stroke pressure loss, simultaneously can solve noise problem, install simple, save cost, improve efficiency.
Except object described above, feature and advantage, the present invention also has other object, feature and advantage.Below with reference to figure, the present invention is further detailed explanation.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is in normally off schematic diagram according to needle during not the working of one embodiment of the invention electric expansion valve;
Fig. 2 is the partial schematic sectional view according to one embodiment of the invention electric expansion valve;
Fig. 3 is the cross-sectional schematic according to one embodiment of the invention electric expansion valve;
Fig. 4 coordinates schematic diagram according to the spool of one embodiment of the invention electric expansion valve with the section of slip position structure; And
Fig. 5 is the flow direction schematic diagram according to one embodiment of the invention electric expansion valve.
Reference character in accompanying drawing is as follows: 10, valve body; 11, liquid inlet; 12, liquid outlet; 20, coil; 21, sealed end cover plate; 31, spool; 311, second liquid port hole; 32, sliding-rail groove; 321, oil storage hole; 33, first liquid port hole; 34, seal ring; 35, snap ring is located; 36, Returnning spring.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
See Fig. 1 to Fig. 5, according to electric expansion valve of the present invention, comprise valve body 10, in valve body 10, form the first chamber, the two ends of valve body 10 are relatively set with liquid inlet 11 and liquid outlet 12, and liquid inlet 11 and liquid outlet 12 are arranged along the central axis coaxial of valve body 10; Second chamber, is arranged in the first chamber, is provided with coil 20 in the second chamber; 3rd chamber, is applied in the second chamber, and the entrance point of the 3rd chamber is connected with liquid inlet 11, and the outlet end of the 3rd chamber is connected with liquid outlet 12, and the entrance point of the 3rd chamber and the outlet end of the 3rd chamber are coaxially arranged; The moveable spool 31 of centrally axis is provided with in 3rd chamber; First liquid port hole 33, be arranged on the chamber wall of the 3rd chamber, the first chamber is connected with liquid inlet 11 by first liquid port hole 33.First liquid port hole 33, be arranged on the 3rd chamber, first liquid port hole 33 is arranged on the gluing, sealing place of the entrance point of spool 31 and the 3rd chamber, and the first chamber is connected with liquid inlet 11 by first liquid port hole 33.3rd chamber is liquid flow path, and the first chamber and the 3rd chamber are by even first liquid port hole 33(4-6) be connected.Valve body 10 can be that integrated type also can be shaping by being welded to connect.Electric expansion valve can be arranged in air conditioning chamber's connection pipe for internal-external unit.Liquid flow direction and spool 31 movement direction and inlet duct outer pipe are in straight line formula, flow more steady, evenly, comprise unidirectional and two-way flow mode, by liquid movement direction and liquid inlet-outlet valve body direction in valve body are kept point-blank, effectively can reduce liquid flowing resistance and lose along stroke pressure, noise problem can be solved simultaneously, install simple, save cost, improve efficiency.
See Fig. 4,3rd chamber is the mobile cavity of spool 31,3rd chamber cavity wall is provided with symmetrically arranged slip position structure (as guide-track groove, chute etc., dovetail groove etc.) and oil storage hole 321(or oil storage tank), slip position structure realizes location and the mobile guide of spool 31, ensures spool 31 in moving process steadily and radial rotary does not occur.3rd chamber is provided with sliding-rail groove 32, and spool 31 slides along sliding-rail groove 32.The inwall of sliding-rail groove 32 is provided with oil storage hole 321.There is a void space when it is coordinated with spool 31 in sliding-rail groove 32 and oil storage hole 321, is conducive to the storage of lubricant oil, makes spool 31 moment keep good lubricating status.
See Fig. 1 and Fig. 2, in the 3rd chamber, be provided with the Returnning spring 36 abutted against with spool 31.Seal ring mounting groove is provided with in 3rd chamber.The concrete seal ring mounting groove that is provided with at the outlet end place of the 3rd chamber installs seal ring 34.The location snap ring 35 for position reset spring 36 is provided with in 3rd chamber.
See Fig. 2, spool 31 seals the entrance point of the 3rd chamber, spool 31 is provided with the second liquid port hole 311 being parallel to central axis and extending.Second liquid port hole 311 is arranged on the gluing, sealing place of the entrance point of spool 31 and the 3rd chamber, and the movement direction of spool 31 and the flow direction through the liquid of second liquid port hole 311 are on the same line.
Spool 31 adopts magnetic material, and the second liquid port hole 311 on the conical surface of spool 31 is communicated with liquid inlet 11 and spool cavity.There are 2 advantages, one when spool 31 is in open time, it is inner that liquid can enter valve body 10 by second liquid port hole 311, the pressure at rapid equalisation spool 31 two ends, minimizing spool 31 moving resistance and liquid, to the impact of spool 31, make spool 31 move more steady.It two can as fluid flow paths, and because its flowing is straight line type, energy loss is minimum, and noise is lower.
See Fig. 1 and Fig. 2, the second chamber is coil installing zone, and the first end of the second chamber is provided with sealed end cover plate 21.Concrete, the second chamber realizes sealing by end cap, end cap is provided with sealed wiring device, connecting coil and outdoor power simultaneously, ensures that Power supply normally arrives coil.
See Fig. 1 and Fig. 5, electric expansion valve also comprises controller, the electrical current size of controller control coil 20 and time.Spool driving mode adopts electromagnetic type to drive.Its working procedure: when electric expansion valve does not work, coil 20 power-off, spool is in closed condition under the effect of Returnning spring.When system needs electric expansion valve to carry out Flow-rate adjustment, coil electricity, the spool 31 that coil generating electromagnetic power and magnet are made interacts, when electromagnetic force F1 is greater than elastic force and frictional force that spool moves the resistance summation F2(Returnning spring 36 that will overcome) time, spool 31 starts mobile increase aperture.Otherwise, when electromagnetic force F1 be less than spool move the resistance summation F2 that will overcome time, spool starts mobile to reduce aperture, completes Flow-rate adjustment.Spool 31 shift motion by the size of the impulsive current be applied on coil and umber of pulse to realize accurate control.
See Fig. 1 and Fig. 5, in liquid inlet 11 and liquid outlet 12, be provided with filter.Preferably, its inlet duct and outer pipe there is filter for installation, realizes liquid filtering.Further, inlet duct with outer pipe has the structure be connected with copper pipe as " horn mouth ", " pipe nut ", also to comprise directly and copper pipe realization is welded to connect.
As can be seen from the above description, the above embodiments of the present invention achieve following technique effect:
By liquid movement direction and liquid inlet-outlet valve body direction in valve body are kept point-blank, can effective less liquid flowing resistance and along stroke pressure loss, simultaneously can solve noise problem, install simple, save cost, improve efficiency
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. an electric expansion valve, is characterized in that, comprising:
Valve body (10), the first chamber is formed in described valve body (10), the two ends of described valve body (10) are relatively set with liquid inlet (11) and liquid outlet (12), and described liquid inlet (11) and described liquid outlet (12) are arranged along the central axis coaxial of described valve body (10);
Second chamber, is arranged in described first chamber, is provided with coil (20) in described second chamber;
3rd chamber, be applied in described second chamber, the entrance point of described 3rd chamber is connected with described liquid inlet (11), and the outlet end of described 3rd chamber is connected with described liquid outlet (12), and the entrance point of described 3rd chamber and the outlet end of described 3rd chamber are coaxially arranged;
Be provided with in described 3rd chamber along the moveable spool of described central axis (31);
First liquid port hole (33), is arranged on the chamber wall of described 3rd chamber, and described first chamber is connected with described liquid inlet (11) by described first liquid port hole (33).
2. electric expansion valve according to claim 1, is characterized in that, described spool (31) is provided with the second liquid port hole (311) being parallel to described central axis and extending.
3. electric expansion valve according to claim 1, is characterized in that, the chamber wall of described 3rd chamber is provided with sliding-rail groove (32), and described spool (31) slides along described sliding-rail groove (32).
4. electric expansion valve according to claim 3, is characterized in that, the inwall of described sliding-rail groove (32) is provided with oil storage hole (321).
5. electric expansion valve according to claim 1, is characterized in that, the internal chamber wall of described 3rd chamber is provided with the Returnning spring (36) abutted against with described spool (31).
6. electric expansion valve according to claim 1, is characterized in that, the first end of described second chamber is provided with sealed end cover plate (21).
7. electric expansion valve according to claim 1, is characterized in that, the outlet end place of described 3rd chamber is provided with seal ring (34).
8. electric expansion valve according to claim 5, is characterized in that, is provided with the location snap ring (35) for locating described Returnning spring (36) in described 3rd chamber.
9. electric expansion valve according to claim 1, is characterized in that, is provided with filter in described liquid inlet (11) and described liquid outlet (12).
10. electric expansion valve according to claim 1, is characterized in that, also comprises controller, and described controller controls electrical current size and the time of described coil (20).
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310518283.4A CN104565476B (en) | 2013-10-28 | 2013-10-28 | Electronic expansion valve |
| ES14857173.0T ES2694139T3 (en) | 2013-10-28 | 2014-10-17 | Electronic expansion valve |
| PCT/CN2014/088861 WO2015062422A1 (en) | 2013-10-28 | 2014-10-17 | Electronic expansion valve |
| US15/032,545 US10119735B2 (en) | 2013-10-28 | 2014-10-17 | Electronic expansion valve |
| PL14857173T PL3064811T3 (en) | 2013-10-28 | 2014-10-17 | Electronic expansion valve |
| JP2016527318A JP6212213B2 (en) | 2013-10-28 | 2014-10-17 | Electronic expansion valve |
| EP14857173.0A EP3064811B1 (en) | 2013-10-28 | 2014-10-17 | Electronic expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310518283.4A CN104565476B (en) | 2013-10-28 | 2013-10-28 | Electronic expansion valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104565476A true CN104565476A (en) | 2015-04-29 |
| CN104565476B CN104565476B (en) | 2017-02-08 |
Family
ID=53082219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310518283.4A Active CN104565476B (en) | 2013-10-28 | 2013-10-28 | Electronic expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104565476B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854796A (en) * | 2017-11-30 | 2019-06-07 | 株式会社不二工机 | Motor-driven valve |
| CN114278735A (en) * | 2020-09-28 | 2022-04-05 | 艾默生环境优化技术(苏州)有限公司 | Control system and control method for electronic expansion valve |
| WO2024060921A1 (en) * | 2022-09-21 | 2024-03-28 | 江苏恩迪汽车系统股份有限公司 | Pump and valve integration system having integrated air channel, and working principle thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU844886A1 (en) * | 1979-09-21 | 1981-07-07 | Ордена Трудового Красного Знамениинститут Биологии Южных Морей Им.O.A.Ковалевского Ah Украинской Ccp | Electromagnetic valve |
| US5341656A (en) * | 1993-05-20 | 1994-08-30 | Carrier Corporation | Combination expansion and flow distributor device |
| CN2655131Y (en) * | 2003-06-20 | 2004-11-10 | 浙江三花股份有限公司 | Electronic expansion valve with double throttle function |
| CN202835954U (en) * | 2012-09-24 | 2013-03-27 | 浙江盾安禾田金属有限公司 | Electronic expansion valve |
| CN102913678B (en) * | 2012-10-19 | 2014-06-18 | 浙江盾安禾田金属有限公司 | Electronic expansion valve |
| CN203516798U (en) * | 2013-10-28 | 2014-04-02 | 珠海格力电器股份有限公司 | Electronic expansion valve |
-
2013
- 2013-10-28 CN CN201310518283.4A patent/CN104565476B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854796A (en) * | 2017-11-30 | 2019-06-07 | 株式会社不二工机 | Motor-driven valve |
| CN114278735A (en) * | 2020-09-28 | 2022-04-05 | 艾默生环境优化技术(苏州)有限公司 | Control system and control method for electronic expansion valve |
| CN114278735B (en) * | 2020-09-28 | 2024-01-30 | 谷轮环境科技（苏州）有限公司 | Control system and control method for electronic expansion valve |
| WO2024060921A1 (en) * | 2022-09-21 | 2024-03-28 | 江苏恩迪汽车系统股份有限公司 | Pump and valve integration system having integrated air channel, and working principle thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104565476B (en) | 2017-02-08 |
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| C14 | Grant of patent or utility model | ||
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