CN108692081A - Electric expansion valve - Google Patents
Electric expansion valve Download PDFInfo
- Publication number
- CN108692081A CN108692081A CN201710228367.2A CN201710228367A CN108692081A CN 108692081 A CN108692081 A CN 108692081A CN 201710228367 A CN201710228367 A CN 201710228367A CN 108692081 A CN108692081 A CN 108692081A
- Authority
- CN
- China
- Prior art keywords
- valve body
- valve seat
- stepped hole
- electric expansion
- valve
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
-
- 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
- F16K51/00—Other details not peculiar to particular types of valves or cut-off apparatus
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve Housings (AREA)
Abstract
The present invention provides a kind of electric expansion valves.The electric expansion valve includes valve body (1), valve seat (2) and first is taken over (3), valve body (1) is provided with stepped hole (4), valve seat (2) is provided with and stepped hole (4) matched step, gap beta > 0mm between the step miner diameter end of valve seat (2) and stepped hole (4) inner hole wall of valve body (1), first, which takes over (3), is set in valve seat (2) outside, and first takes over the distance between the valve body end face for taking over end face and valve body (1) of (3) δ >=0, first takes over the gap between the periphery wall of (3) and stepped hole (4) as α > 0mm.Electric expansion valve according to the present invention can solve do not have solder inflow in the gap between valve seat and valve body in the prior art, cause the problem that welding performance is bad.
Description
Technical field
The present invention relates to air-conditioning technical fields, are applied in the refrigeration systems such as air conditioner, refrigerator more particularly to a kind of
Electric expansion valve.
Background technology
Electric expansion valve is a kind of component of Electromagnetic Control, is used in the break-make or tune that medium is controlled in industrial control system
The parameters such as the flow of whole medium, to realize expected control.In refrigeration systems, electric expansion valve is then used to adjust into evaporation
The refrigerating capacity of device supplies the refrigerant of optimal dose to evaporator, ensures the stable operation of refrigeration system.The electronics of the prior art is swollen
Swollen valve arrangement, as disclosed a kind of electric expansion valve in Japan Patent (JP2009-162369), discharge connection is direct with valve seat
It is inserted into welding, without support member, strength of connection only leans on very thin by one at the material thickness and cooperation of lower connector and valve seat for left and right
The bond strength of border annulus weld seam ensures that the welded seal of this welding line structure is not ideal enough, and bond strength is less reliable.
It is installed in system, is impacted by vibration and hyperbar, there is the hidden danger to fall off with leakage.Equally, valve seat core is combined with valve seat,
There is also the defects of weldering knotting strength difference, and when side, connecting tube is passed through high pressure, and lower connector is passed through low pressure, and valve seat forms closed with cover body
Chamber it is excessively high when, valve seat core is by downward atmospheric pressure, if solder bond intensity is slightly worse, exist fall off with leakage it is hidden
Suffer from.
Application No. is 201110436124.0, a kind of entitled Chinese invention taken over the fixed structure of valve seat
A kind of fixed structure taken over valve seat is disclosed in patent application, valve seat is disposed with stage portion and auxiliary section in an axial direction,
It takes over and is sleeved on auxiliary section periphery, the peripheral part of stage portion is provided with solder receiving portion, after butt tube and valve seat implement soldering, weldering
Expect that receiving portion forms solder areas, and solder areas extends to the engaging portion taken over stage portion.
Solder receiving portion is formed using the stage portion on valve seat in this application, solder is then ensured by the solder receiving portion
Shaping position improve production yields to avoid solder attachment in the poor weld form of take over peripheral surface.But it is welding
Weld-ring and red copper take over that heat absorption is fast, and Preferential adsorption, which is flow to, when weld-ring reaches molten condition takes in termination process, valve seat with
There is no solder inflow in gap between valve body, causes welding performance bad.
Invention content
The object of the present invention is to provide a kind of electric expansion valves, to solve the gap between valve seat and valve body in the prior art
In there is no solder inflow, cause the problem that welding performance is bad.
In order to solve the above technical problems, as one aspect of the present invention, a kind of electric expansion valve, including valve are provided
Body, valve seat and first are taken over, and valve body is provided with stepped hole, and valve seat is provided with and the matched step of stepped hole, the step of valve seat
Gap beta > 0mm between miner diameter end and the stepped hole inner hole wall of valve body, first takes over and is set in outside valve seat, and first takes over
The distance between end face and the valve body end face of valve body δ >=0 are taken over, the gap between the first periphery wall and stepped hole taken over is α
> 0mm.
The electric expansion valve of the present invention, gap is provided between valve seat and the stepped hole of valve body, is taken over and platform first
Rank is also equipped with gap between hole, and when being subjected to, weld-ring is heated to be in molten condition and be adsorbed on first and be taken over,
Due to first take over take over the distance between end face and the valve body end face of valve body δ >=0, first takes over the valve body with valve body
End face is either extend into valve body, the gap between periphery wall and stepped hole that the weld-ring of molten condition is taken over first
The space between the periphery wall that first takes over and the internal perisporium of stepped hole is entered along gap α under the capillary action of α, into
And the tube wall taken over along first flows into and fills up the gap between the step miner diameter end of valve seat and the stepped hole inner hole wall of valve body
β, realize first take over, valve seat and valve body it is integrally molded, the welding quality of this three can be effectively ensured.
Description of the drawings
Fig. 1 diagrammatically illustrates the sectional structure chart of the electric expansion valve of the embodiment of the present invention;
Fig. 2 diagrammatically illustrates the enlarged structure schematic diagram at the electric expansion valve welding position of Fig. 1.
Reference numeral in figure:1, valve body;2, valve seat;3, it first takes over;4, stepped hole;5, weld-ring.
Specific implementation mode
The embodiment of the present invention is described in detail below, but what the present invention can be defined by the claims and cover
Multitude of different ways is implemented.
It please refers to Fig.1 with shown in Fig. 2, according to an embodiment of the invention, electric expansion valve includes valve body 1, valve seat 2 and first
Take over 3, valve body 1 are provided with stepped hole 4, valve seat 2 be provided with 4 matched step of stepped hole, the step miner diameter end of valve seat 2 with
Gap beta > 0mm between 4 inner hole wall of stepped hole of valve body 1, the first take over 3 be set in outside valve seat 2, and the first take over 3 is taken over
The distance between end face b and the valve body end face a of valve body 1 δ >=0, the gap between the periphery wall and stepped hole 4 of the first take over 3 are α
> 0mm.Preferably, the end face b that takes over of the first take over 3 is stretched into stepped hole 4.
The electric expansion valve of the present invention, is provided with gap, in the first take over 3 between valve seat 2 and the stepped hole 4 of valve body 1
It is also equipped with gap between stepped hole 4, when being subjected to, weld-ring 5 is heated to be in molten condition and be adsorbed on first
On take over 3, the distance between end face b and 1 end face of valve body of valve body 1 δ >=0 are taken over due to the first take over 3, first takes over
3 either extend into valve body 1 with 1 end face of valve body of valve body 1, the periphery wall of the weld-ring 5 of molten condition in the first take over 3
The periphery wall and stepped hole 4 of the first take over 3 are entered under the capillary action of gap α between stepped hole 4 along gap α
Internal perisporium between space, and then flowed into along the tube wall of the first take over 3 and fill up the step miner diameter end of valve seat 2 and valve body 1
4 inner hole wall of stepped hole between gap beta, realize the first take over 3, valve seat 2 and valve body 1 it is integrally molded, can be effectively ensured
The welding quality of this three.
Preferably, it is interference fitted between the step bigger diameter end and stepped hole 4 of valve seat 2.Set valve seat 2 to step structure,
It is to coordinate to be formed with the stepped hole of valve body 1 so that can be realized by different positions between valve body 1 and valve seat 2 different
Matching relationship so that the step bigger diameter end of valve seat 2 can be by realizing interference press fitting, to logical between interference section d and valve body 1
Interference section d ensures the concentricity between valve seat 2 and valve body 1, ensures the cooperation precision of the two.The step miner diameter end of valve seat 2 with
Clearance fit is formed between the miner diameter end of stepped hole 4, fit clearance β can be in shape at the cooperation position of valve seat 2 and valve body 1
At filling gap so that solder can enter in the filling gap, realize that valve seat 2 and the firm welded of valve body 1 coordinate.
By the way that different matching relationships will be set as between the step of valve seat 2 and the stepped hole of valve body 1, on the one hand can protect
The stability and accuracy of the fit structure between valve seat 2 and valve body 1 are demonstrate,proved, on the other hand can conveniently realize consolidating for the two again
Fixed welding cooperation, improves the accuracy of welding precision and position.
Preferably, transition coordinates between the first take over 3 and valve seat 2, changeover portion c, it is ensured that the first take over 3 and valve seat
Good location fit can be realized between 2, and can steadily be linked together, when the installation of the first take over 3 and valve seat 2
After accurate positioning, since the positioning accuracy between valve seat 2 and valve body 1 can ensure, the positioning accuracy between three is equal
It can ensure, improve the accuracy of three's installation site.
It is arranged with weld-ring 5 outside first take over 3, weld-ring 5 is contacted with valve body end face a.Weld-ring 5 is socketed in outside the first take over 3,
And so that weld-ring 5 is contacted with valve body end face a, the gap between weld-ring 5 and the periphery wall and stepped hole of the first take over 3 can be reduced
Spacing between α so that is more prone to be absorbed into the α of gap along the surface of the first take over 3 after the melting of weld-ring 5, it can be with
It improves solder and enters the efficiency of gap α, ensure that solder can be entered in the α of gap with molten condition, and between can continuing on
Gap α is entered in gap beta, and then ensures the weld strength between valve seat 2 and valve body 1.
Preferably, β > α can make the gap with bigger between valve seat 2 and valve body 1, so as to better ensure that valve
Connection structure intensity between seat 2 and valve body 1.
Preferably, it takes over end face b and the hole wall side of stepped hole 4 is provided with chamfering, can be entered by chamfering increase
The solder and the contact area of the first take over 3 and valve seat 2 of gap α and gap beta, further increase valve body 1, valve seat 2 and first
Weld strength between 3 three of take over ensures welding quality.
Valve body 1 is provided with the casing towards 3 stretching of the first take over close to 4 side of stepped hole of 3 one end of the first take over, and first connects
Pipe 3 is set in casing.By the side of the stepped hole 4 in valve body 1, casing is set, can increase the first take over 3 and valve body 1 it
Between length of fit, increase weld length between the two, improve weld strength between the two, ensure welding quality.Casing
It can be fixedly connected on valve body 1, can also be directly process on valve body 1 by modes such as welding.
Preferably, it takes over end face b and the step surface of valve seat 2 abuts against, it is ensured that the first take over 3 is installed on valve seat 2
In place, ensure the accuracy of the cooperation position of the two.
It these are only the preferred embodiment of the present invention, be not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.Any modification made by all within the spirits and principles of the present invention,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of electric expansion valve, which is characterized in that taken over (3) including valve body (1), valve seat (2) and first, the valve body (1)
It is provided with stepped hole (4), the valve seat (2) is provided with and the stepped hole (4) matched step, the platform of the valve seat (2)
Gap beta > 0mm between rank miner diameter end and stepped hole (4) inner hole wall of the valve body (1), described first, which takes over (3), is set in
The valve seat (2) outside, and described first take over the distance between the valve body end face for taking over end face and the valve body (1) of (3) δ >=
0, described first takes over the gap between the periphery wall of (3) and the stepped hole (4) as α > 0mm.
2. electric expansion valve according to claim 1, which is characterized in that the step bigger diameter end of the valve seat (2) with it is described
Stepped hole is interference fitted between (4).
3. electric expansion valve according to claim 1, which is characterized in that described first take over (3) and the valve seat (2) it
Between transition coordinate.
4. electric expansion valve according to claim 1, which is characterized in that described first takes over (3) is arranged with weld-ring outside
(5), the weld-ring (5) contacts with the valve body end face.
5. electric expansion valve according to claim 1, which is characterized in that β > α.
6. electric expansion valve according to claim 1, which is characterized in that the end face of taking over is close to the stepped hole (4)
Hole wall side be provided with chamfering.
7. electric expansion valve according to claim 1, which is characterized in that the valve body (1) is taken over (3) close to described first
Stepped hole (4) side of one end is provided with the casing for taking over (3) stretching towards described first, and described first, which takes over (3), is set in institute
It states in casing.
8. electric expansion valve according to claim 1, which is characterized in that the platform for taking over end face and the valve seat (2)
Terrace abuts against.
9. electric expansion valve according to claim 1, which is characterized in that the described first end face of taking over for taking over (3) is stretched into
In the stepped hole (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710228367.2A CN108692081A (en) | 2017-04-07 | 2017-04-07 | Electric expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710228367.2A CN108692081A (en) | 2017-04-07 | 2017-04-07 | Electric expansion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108692081A true CN108692081A (en) | 2018-10-23 |
Family
ID=63843071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710228367.2A Pending CN108692081A (en) | 2017-04-07 | 2017-04-07 | Electric expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108692081A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111140687A (en) * | 2018-11-06 | 2020-05-12 | 浙江三花智能控制股份有限公司 | Electronic expansion valve |
| CN111810480A (en) * | 2019-04-12 | 2020-10-23 | 浙江三花制冷集团有限公司 | Reversing valve and manufacturing method thereof |
| WO2021164584A1 (en) * | 2020-02-18 | 2021-08-26 | 浙江盾安人工环境股份有限公司 | Electronic expansion valve |
| CN113339510A (en) * | 2020-02-18 | 2021-09-03 | 浙江盾安禾田金属有限公司 | Electronic expansion valve |
| CN114738495A (en) * | 2021-01-08 | 2022-07-12 | 浙江盾安人工环境股份有限公司 | Electromagnetic valve |
| WO2023231886A1 (en) * | 2022-06-01 | 2023-12-07 | 浙江盾安人工环境股份有限公司 | Stop valve and air conditioning system |
| WO2023241260A1 (en) * | 2022-06-16 | 2023-12-21 | 广东威灵电机制造有限公司 | Electronic expansion valve |
| EP4219988A4 (en) * | 2020-10-21 | 2024-04-10 | Zhejiang Dunan Artificial Environment Co., Ltd. | One-way valve |
| JP7554927B2 (en) | 2021-01-08 | 2024-09-20 | 浙江盾安人工環境股▲ふん▼有限公司 | Solenoid valve |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878730A (en) * | 2012-06-29 | 2013-01-16 | 浙江盾安人工环境股份有限公司 | Electronic expansion valve |
| CN103174860A (en) * | 2011-12-22 | 2013-06-26 | 浙江三花股份有限公司 | Fixing structure of connecting tube and valve seat |
| US20130206851A1 (en) * | 2012-02-10 | 2013-08-15 | Kabushiki Kaisha Saginomiya Seisakusho | Expansion valve |
| CN203163369U (en) * | 2012-02-10 | 2013-08-28 | 株式会社鹭宫制作所 | Expansion valve |
| KR20140054562A (en) * | 2012-10-29 | 2014-05-09 | 그린산업 주식회사 | Electronic expansion valve |
| CN103836211A (en) * | 2014-03-25 | 2014-06-04 | 浙江三花股份有限公司 | Valve seat assembly of electronic expansion valve and manufacturing method of valve seat assembly |
| CN204004479U (en) * | 2013-12-13 | 2014-12-10 | 浙江盾安禾田金属有限公司 | A kind of electric expansion valve |
| CN105508623A (en) * | 2014-09-26 | 2016-04-20 | 浙江盾安人工环境股份有限公司 | Electronic expansion valve |
| CN105716335A (en) * | 2014-12-03 | 2016-06-29 | 浙江盾安人工环境股份有限公司 | Electronic expansion valve |
| CN205715985U (en) * | 2016-05-06 | 2016-11-23 | 浙江盾安禾田金属有限公司 | A kind of electric expansion valve |
-
2017
- 2017-04-07 CN CN201710228367.2A patent/CN108692081A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174860A (en) * | 2011-12-22 | 2013-06-26 | 浙江三花股份有限公司 | Fixing structure of connecting tube and valve seat |
| US20130206851A1 (en) * | 2012-02-10 | 2013-08-15 | Kabushiki Kaisha Saginomiya Seisakusho | Expansion valve |
| CN203163369U (en) * | 2012-02-10 | 2013-08-28 | 株式会社鹭宫制作所 | Expansion valve |
| CN102878730A (en) * | 2012-06-29 | 2013-01-16 | 浙江盾安人工环境股份有限公司 | Electronic expansion valve |
| KR20140054562A (en) * | 2012-10-29 | 2014-05-09 | 그린산업 주식회사 | Electronic expansion valve |
| CN204004479U (en) * | 2013-12-13 | 2014-12-10 | 浙江盾安禾田金属有限公司 | A kind of electric expansion valve |
| CN103836211A (en) * | 2014-03-25 | 2014-06-04 | 浙江三花股份有限公司 | Valve seat assembly of electronic expansion valve and manufacturing method of valve seat assembly |
| CN105508623A (en) * | 2014-09-26 | 2016-04-20 | 浙江盾安人工环境股份有限公司 | Electronic expansion valve |
| CN105716335A (en) * | 2014-12-03 | 2016-06-29 | 浙江盾安人工环境股份有限公司 | Electronic expansion valve |
| CN205715985U (en) * | 2016-05-06 | 2016-11-23 | 浙江盾安禾田金属有限公司 | A kind of electric expansion valve |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111140687A (en) * | 2018-11-06 | 2020-05-12 | 浙江三花智能控制股份有限公司 | Electronic expansion valve |
| CN111810480A (en) * | 2019-04-12 | 2020-10-23 | 浙江三花制冷集团有限公司 | Reversing valve and manufacturing method thereof |
| WO2021164584A1 (en) * | 2020-02-18 | 2021-08-26 | 浙江盾安人工环境股份有限公司 | Electronic expansion valve |
| CN113339510A (en) * | 2020-02-18 | 2021-09-03 | 浙江盾安禾田金属有限公司 | Electronic expansion valve |
| JP2023513413A (en) * | 2020-02-18 | 2023-03-31 | 浙江盾安人工環境股▲ふん▼有限公司 | electronic expansion valve |
| JP7398560B2 (en) | 2020-02-18 | 2023-12-14 | 浙江盾安人工環境股▲ふん▼有限公司 | electronic expansion valve |
| EP4219988A4 (en) * | 2020-10-21 | 2024-04-10 | Zhejiang Dunan Artificial Environment Co., Ltd. | One-way valve |
| CN114738495A (en) * | 2021-01-08 | 2022-07-12 | 浙江盾安人工环境股份有限公司 | Electromagnetic valve |
| JP7554927B2 (en) | 2021-01-08 | 2024-09-20 | 浙江盾安人工環境股▲ふん▼有限公司 | Solenoid valve |
| WO2023231886A1 (en) * | 2022-06-01 | 2023-12-07 | 浙江盾安人工环境股份有限公司 | Stop valve and air conditioning system |
| WO2023241260A1 (en) * | 2022-06-16 | 2023-12-21 | 广东威灵电机制造有限公司 | Electronic expansion valve |
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