CN205715985U - A kind of electric expansion valve - Google Patents
A kind of electric expansion valve Download PDFInfo
- Publication number
- CN205715985U CN205715985U CN201620410193.2U CN201620410193U CN205715985U CN 205715985 U CN205715985 U CN 205715985U CN 201620410193 U CN201620410193 U CN 201620410193U CN 205715985 U CN205715985 U CN 205715985U
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- CN
- China
- Prior art keywords
- needle
- valve seat
- valve
- nut
- 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.)
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Classifications
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- 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 discloses a kind of electric expansion valve, including valve seat, nut assembly and rotor assembly, described rotor assembly includes leading screw, described nut assembly includes the nut coordinated with leading screw, the bottom of described nut is provided with the nut being connected with valve seat and connects seat, the inner chamber of described valve seat is provided with needle, it is provided with spring between bottom needle top and leading screw, the internal chamber wall of described valve seat is circumferentially with the guide rib guiding needle to move axially around needle, valve base cavity is divided into upper cavity and lower chamber by described guide rib, described lower chamber be internal perisporium be the cylinder chamber of smooth shape.This utility model is provided with guide rib and guides needle, thus alleviate the air-flow impact to rotor, it is simultaneously directed to flange and valve base cavity has been separated into upper cavity and lower chamber, lower chamber is for circulating coolant, and lower chamber shape is regular, internal perisporium is smooth shape structure, is conducive to reducing turbulent flow, reduces noise and produces.
Description
Technical field
This utility model relates to operation of air conditioning systems, especially relates to a kind of electric expansion valve.
Background technology
The electric expansion valve being used for adjusting refrigerant flow rate in the refrigeration systems such as air-conditioning includes valve part and line
Circle, is controlled the flow of cold-producing medium, thus reaches control by the needle opening degree in coil drive valve part
The effect of temperature processed.In existing system, electric expansion valve is susceptible to coolant in system application process
Fluid noise phenomenon, this noise has a strong impact on air conditioner user experience.
Utility model content
Technical problem to be solved in the utility model is just to provide a kind of electric expansion valve, it is to avoid coolant fluid
Noise phenomena occurs, improves air conditioner user experience.
For solving above-mentioned technical problem, this utility model adopts the following technical scheme that a kind of electric expansion valve,
Including valve seat, nut assembly and rotor assembly, described rotor assembly includes that leading screw, described nut assembly include
The nut coordinated with leading screw, the bottom of described nut is provided with the nut being connected with valve seat and connects seat, described valve seat
Inner chamber in be provided with needle, bottom needle top and leading screw between be provided with spring, the internal chamber wall ring of described valve seat
Be circumferentially with the guide rib guiding needle to move axially around needle, valve base cavity is separated by described guide rib
For upper cavity and lower chamber, described lower chamber be internal perisporium be the cylinder chamber of smooth shape, described needle divides big footpath
Section and path section, big footpath section and upper cavity coordinate, and path section and guide rib centre bore coordinate.
As preferably, the sidewall of described valve seat is provided with the first interface connected with lower chamber, and first interface connects
First adapter, the bottom of described valve seat is provided with the second interface connected with lower chamber, and the second interface connects second
Adapter, is provided with valve seat core in described second interface, described valve seat core is provided with and coordinates with the conical head bottom needle
Valve opening.
As preferably, the top of described second interface is provided with and abuts the location coordinated with locating flange on valve seat core
Ring, described valve seat core and the second interface interference press-fit be integrated and with second adapter together with fix in furnace brazing.
As preferably, described lower chamber is the circular cylindrical cavity that diameter is equal with locating ring.
As preferably, described upper cavity is provided with and the valve needle cover of needle clearance fit.
As preferably, the top of described valve needle cover is provided with top cover, and the bottom of described leading screw is through top cover and fixes
One pressure head abutted with spring top elasticity.
As preferably, the middle part of described needle is circumferentially provided with the first flange, the upper end of described first flange with
The lower end elasticity of spring abuts.
As preferably, described needle has been wholely set diameter at the first flange underside and has been less than the first flange and and valve
Second flange of needle guard bottom through-hole matched in clearance.
As preferably, described nut connects the external annulus connection of seat nut connecting plate, the top of described valve seat
It is provided with positioning ring groove, in described nut connecting plate interference is fitted in positioning ring groove and is fixed by laser welding.
As preferably, described valve seat uses rustless steel to process.
This utility model is provided with guide rib and guides needle, thus alleviates the air-flow impact to rotor,
Being simultaneously directed to flange and valve base cavity has been separated into upper cavity and lower chamber, lower chamber is used for circulating coolant, and
And lower chamber shape is regular, internal perisporium is smooth shape structure, is conducive to reducing turbulent flow, reduces noise and produces.
Accompanying drawing explanation
With detailed description of the invention, this utility model is further described below in conjunction with the accompanying drawings:
Fig. 1 is structural representation of the present utility model；
Fig. 2 is structure for amplifying schematic diagram at I in Fig. 1.
Detailed description of the invention
As it is shown in figure 1, a kind of electric expansion valve, including valve seat 1, nut assembly 2 and rotor assembly 3, institute
State rotor assembly and include that leading screw 31, described nut assembly 2 include the nut 21 coordinated with leading screw 31, described
The bottom of nut 21 is provided with the nut being connected with valve seat 1 and connects seat, is provided with needle 12 in the inner chamber of described valve seat,
Being provided with spring 112 between bottom needle top and leading screw, the internal chamber wall of described valve seat is circumferentially with around needle and draws
The guide rib 101 that pilot valve pin 12 moves axially, valve base cavity is divided into by the most described guide rib 101
Upper cavity 102 and lower chamber 103, and lower chamber 103 is internal perisporium is the cylinder chamber of smooth shape, so has
It is beneficial to reduce turbulent flow, reduces noise and produce.It addition, 12 points of big footpath sections of described needle and path section, big footpath section
Coordinating with upper cavity, path section and guide rib centre bore coordinate.
Wherein, the sidewall of described valve seat 1 is provided with the first interface 104 connected with lower chamber 103, first interface
Connecting the first adapter 14, the bottom of described valve seat 1 is provided with the second interface 105 connected with lower chamber 103,
Second interface 105 connects the second adapter 15, and first interface 104 is vertical with the second interface 105, and described second
Being provided with valve seat core 13 in interface, described valve seat core 13 is provided with the valve opening 131 coordinated with the conical head bottom needle.
Coil drive rotor assembly 3 rotates, and drives needle 12 to rise or fall motion, changes needle conical head 123
And the circulation area between valve opening 131 changes the size of flow of electronic expansion valve.
Described second interface 105 is provided with the locating ring coordinated with locating flange 132 on valve seat core 13, described valve
Seat core 13 and the second interface 105 interference be press fit together after together with the second adapter 105 in furnace brazing, with
Ensure the reliable of connection, prevent valve seat core 13 from deviating from from the second interface 105.The good of valve seat core 13 is set
Place is first to process the second interface 105, and then drill bit processes lower chamber by the second interface 105
103, therefore lower chamber 103 can be processed into the circular cylindrical cavity that diameter is equal with locating ring.
Being provided with valve needle cover 11 in described upper cavity 102, the top of described valve needle cover 11 is provided with top cover 111, institute
A pressure head 311 abutted with spring upper end elasticity through top cover 111 and is fixed in the bottom stating leading screw 31, described
The middle part of needle is circumferentially provided with the first flange 121, and the upper end of described first flange is supported with the lower end elasticity of spring
Connect.Described needle has been wholely set diameter at the first flange underside and has been less than the first flange and leads to bottom valve needle cover
The second flange 122 that interporal lacuna coordinates.Needle 12 and valve needle cover 11 clearance fit, and can slide vertically
Dynamic, drive needle 12 by spring 112 and achieve reset.Described valve seat 1 use rustless steel processing and
Become, to avoid corrosion, increase the service life.
As in figure 2 it is shown, the external annulus that described nut connects seat is fixedly connected with nut connecting plate 22, described valve
The top of seat 1 is provided with positioning ring groove 106, and the interference of described nut connecting plate 22 is fitted in positioning ring groove 106
And fixed by laser welding, to ensure the reliable of connection, prevent nut connecting plate 22 from disengaging with valve seat 1.
Claims (10)
1. an electric expansion valve, including valve seat, nut assembly and rotor assembly, described rotor assembly includes leading screw,
Described nut assembly includes the nut coordinated with leading screw, and the bottom of described nut is provided with the nut being connected with valve seat
Connect seat, the inner chamber of described valve seat is provided with needle, bottom needle top and leading screw between be provided with spring, its
It is characterised by: the internal chamber wall of described valve seat is circumferentially with the guide rib guiding needle to move axially around needle,
Valve base cavity is divided into upper cavity and lower chamber by described guide rib, and described lower chamber is that internal perisporium is in smooth
The cylinder chamber of shape, described needle divides big footpath section and path section, and big footpath section and upper cavity coordinate, path section and leading
Coordinate to flange centre bore.
A kind of electric expansion valve the most according to claim 1, it is characterised in that: the sidewall of described valve seat is provided with
The first interface connected with lower chamber, first interface connect first adapter, the bottom of described valve seat be provided with under
Second interface of cavity connection, the second interface connects the second adapter, is provided with valve seat core in described second interface,
Described valve seat core is provided with the valve opening coordinated with the conical head bottom needle.
A kind of electric expansion valve the most according to claim 2, it is characterised in that: the top of described second interface
Being provided with and abut the locating ring coordinated with locating flange on valve seat core, described valve seat core and the second interface interference press-fit
It is integrated and fixes in furnace brazing together with the second adapter.
A kind of electric expansion valve the most according to claim 3, it is characterised in that: described lower chamber be diameter with
The circular cylindrical cavity that locating ring is equal.
5. according to a kind of electric expansion valve described in Claims 1-4 any one, it is characterised in that: on described
Cavity is provided with and the valve needle cover of needle clearance fit.
A kind of electric expansion valve the most according to claim 5, it is characterised in that: the top of described valve needle cover sets
Having top cover, the bottom of described leading screw is through top cover and fixes a pressure head abutted with spring top elasticity.
A kind of electric expansion valve the most according to claim 6, it is characterised in that: the middle part of described needle is along ring
To being provided with the first flange, the upper end of described first flange abuts with the lower end elasticity of spring.
A kind of electric expansion valve the most according to claim 7, it is characterised in that: described needle is at the first flange
Downside is wholely set diameter and is less than the first flange and the second flange with valve needle cover bottom through-hole matched in clearance.
A kind of electric expansion valve the most according to claim 1, it is characterised in that: described nut connects outside seat
Ring wall connects has nut connecting plate, the top of described valve seat to be provided with positioning ring groove, described nut connecting plate interference
In being fitted in positioning ring groove and fixed by laser welding.
A kind of electric expansion valve the most according to claim 1, it is characterised in that: described valve seat uses stainless
Steel processes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620410193.2U CN205715985U (en) | 2016-05-06 | 2016-05-06 | A kind of electric expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620410193.2U CN205715985U (en) | 2016-05-06 | 2016-05-06 | A kind of electric expansion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205715985U true CN205715985U (en) | 2016-11-23 |
Family
ID=57303362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620410193.2U Active CN205715985U (en) | 2016-05-06 | 2016-05-06 | A kind of electric expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205715985U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106679247A (en) * | 2016-12-12 | 2017-05-17 | 盾安环境技术有限公司 | Electronic expansion valve of vehicle air conditioner system |
| CN107061762A (en) * | 2016-12-13 | 2017-08-18 | 盾安环境技术有限公司 | A kind of pilot valve and main valve attachment structure and method |
| CN108375250A (en) * | 2017-01-31 | 2018-08-07 | 株式会社鹭宫制作所 | Motor-driven valve and refrigerating circulation system |
| CN108692081A (en) * | 2017-04-07 | 2018-10-23 | 浙江盾安机械有限公司 | Electric expansion valve |
| CN111102366A (en) * | 2018-10-27 | 2020-05-05 | 浙江三花智能控制股份有限公司 | Electronic expansion valve |
| CN106678382B (en) * | 2016-12-13 | 2022-06-17 | 盾安环境技术有限公司 | Electronic expansion valve of vehicle air conditioning system |
| WO2023005178A1 (en) * | 2021-07-30 | 2023-02-02 | 浙江三花智能控制股份有限公司 | Electric valve |
| US11906217B2 (en) | 2018-10-27 | 2024-02-20 | Zhejiang Sanhua Intelligent Controls Co., Ltd. | Electronic expansion valve |
-
2016
- 2016-05-06 CN CN201620410193.2U patent/CN205715985U/en active Active
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106679247B (en) * | 2016-12-12 | 2021-12-07 | 盾安环境技术有限公司 | Electronic expansion valve of air conditioning system for vehicle |
| CN106679247A (en) * | 2016-12-12 | 2017-05-17 | 盾安环境技术有限公司 | Electronic expansion valve of vehicle air conditioner system |
| CN106678382B (en) * | 2016-12-13 | 2022-06-17 | 盾安环境技术有限公司 | Electronic expansion valve of vehicle air conditioning system |
| CN107061762B (en) * | 2016-12-13 | 2022-03-25 | 盾安环境技术有限公司 | Connecting structure and method for pilot valve and main valve body |
| CN114483968A (en) * | 2016-12-13 | 2022-05-13 | 盾安环境技术有限公司 | Connecting structure and method for pilot valve and main valve body |
| CN107061762A (en) * | 2016-12-13 | 2017-08-18 | 盾安环境技术有限公司 | A kind of pilot valve and main valve attachment structure and method |
| CN114483968B (en) * | 2016-12-13 | 2023-06-06 | 盾安环境技术有限公司 | Pilot valve and main valve body connecting structure and method |
| CN108375250B (en) * | 2017-01-31 | 2021-01-08 | 株式会社鹭宫制作所 | Electric valve and refrigeration cycle system |
| CN108375250A (en) * | 2017-01-31 | 2018-08-07 | 株式会社鹭宫制作所 | Motor-driven valve and refrigerating circulation system |
| CN108692081A (en) * | 2017-04-07 | 2018-10-23 | 浙江盾安机械有限公司 | Electric expansion valve |
| CN111102366A (en) * | 2018-10-27 | 2020-05-05 | 浙江三花智能控制股份有限公司 | Electronic expansion valve |
| US11906217B2 (en) | 2018-10-27 | 2024-02-20 | Zhejiang Sanhua Intelligent Controls Co., Ltd. | Electronic expansion valve |
| WO2023005178A1 (en) * | 2021-07-30 | 2023-02-02 | 浙江三花智能控制股份有限公司 | Electric valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |