CN2797792Y - Electronic expansion valve - Google Patents
Electronic expansion valve Download PDFInfo
- Publication number
- CN2797792Y CN2797792Y CN 200520101881 CN200520101881U CN2797792Y CN 2797792 Y CN2797792 Y CN 2797792Y CN 200520101881 CN200520101881 CN 200520101881 CN 200520101881 U CN200520101881 U CN 200520101881U CN 2797792 Y CN2797792 Y CN 2797792Y
- Authority
- CN
- China
- Prior art keywords
- valve seat
- valve
- seat chamber
- chamber
- port
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Electrically Driven Valve-Operating Means (AREA)
- Lift Valve (AREA)
- Details Of Valves (AREA)
Abstract
The utility model relates to an electronic expansion valve used for adjusting the flow of cooling medium. The existing valve seat chamber is a transversal hole which forms 90 DEG with a main shaft line of a valve body, the upper part of a valve port is provided with a counter hole which is arranged on a curved surface of the valve seat chamber, and the transversal hole is caused to be crossed with a vertical hole; therefore, the processing technology is complicated, the inner wall of the valve seat chamber is damaged, the abrasion of the valve port is large and the flowing noise of the cooling medium is greater. The utility model comprises a valve body and a valve seat which is connected with the lower part of the valve body, wherein a valve seat chamber is arranged on the valve seat and the valve seat chamber is communicated with a valve port. The utility model is characterized in that the valve seat chamber is a vertical cylindrical hole which is arranged along the direction of main shaft line of the valve body, the valve seat point which is positioned at the upper part of the valve seat chamber is provided with a guide hole which is communicated with the valve seat chamber and the side surface of the valve seat chamber is communicated with an inlet connecting pipe. The valve seat chamber of the utility model is arranged along the direction of the main shaft line of the valve body, a counter hole on the upper end of the valve port is omitted, the structure and the processing technology are simple and the flowing noise of the cooling medium is reduced.
Description
Technical field
The utility model relates to the parts of idle call, specifically a kind of electric expansion valve of regulating cold medium flux.
Background technique
Present electric expansion valve as shown in Figure 1, comprise valve body 1 ', be enclosed within the coil (not shown) on the valve body and be connected the valve seat 2 ' of valve body lower portion, be positioned at magnet rotor 3 ', screw mandrel 4 ' and the nut 5 ' that is connected on the screw mandrel of valve body, the valve port 7 ' that has valve seat chamber 6 ' on the valve seat and communicate with it, valve seat chamber 6 ' is and the transverse holes that becomes 90 ° along the valve body main axis, and a pilot hole 2a ' along the main axis direction is arranged at this 6 ' top, valve seat chamber, for needle 8 ' provides guiding.One counterbore 9 ' is arranged at valve port 7 ' top, and this counterbore is arranged on the curved surface of valve seat chamber (curved surface is caused by valve seat chamber cross setting), has caused cross-drilled hole and vertical core to intersect, processing technology is complicated, and destroyed the inwall of valve seat chamber, the valve port wearing and tearing are big, and refrigerant flow noise is bigger.In addition, concerning bigbore valve, because the problem of processing, the aperture of counterbore can't be opened greatly, and there is the problem of flow bottleneck in valve port.
The model utility content
Technical problem to be solved in the utility model is to overcome the defective that above-mentioned prior art exists, the electric expansion valve that provides a kind of valve seat chamber to be provided with along valve body main axis direction, save the counterbore of existing valve port upper end,, reduce refrigerant flow noise to reduce valve port wearing and tearing and simplified processing process.
For this reason, the utility model adopts following technological scheme: electric expansion valve, comprise valve body and the valve seat that is connected valve body lower portion, have the valve seat chamber on the valve seat, the valve seat chamber communicates with valve port, it is characterized in that: described valve seat chamber is a vertical cylindrical hole along the setting of valve body main axis direction, and the valve seat place that is positioned at top, valve seat chamber has a pilot hole that communicates with the valve seat chamber, and the side of valve seat chamber is communicated with an entrance sleeve.Because the valve seat chamber is a vertical cylindrical hole along the setting of valve body main axis direction, cross-drilled hole (former valve seat cell structure) is become vertical core, saved the counterbore of the valve port upper end of existing structure, avoided intersecting of cross-drilled hole (former valve seat cell structure) and vertical core (counterbore on valve port top) effectively, refrigerant flow noise is low.Because there is not counterbore in the valve port upper end, the bore of valve port is not subjected to the restriction in counterbore aperture, has avoided bigbore valve to have the problem of flow bottleneck.
Described a kind of electric expansion valve, the bottom of valve seat chamber have a valve seat core that is positioned at valve seat, and the external diameter of this valve seat core is more than or equal to the diameter of valve seat chamber, and described valve port is arranged on the valve seat core.Divide body structure because valve seat and valve seat core adopt, the valve seat core can adopt the material different with valve seat, so that improve the wear resistance of valve port.
Described a kind of electric expansion valve, the valve seat core is embedded on the valve seat, and the bottom of valve seat core is connected with a discharge connection, by discharge connection the valve seat core is carried out axially locating, has guaranteed reliability of products.
Described a kind of electric expansion valve, the center line of pilot hole and valve port and the main axis of valve body are on same straight line.But valve seat chamber, needle pilot hole and the hole time processing that is used to inlay the valve seat core have not only been simplified processing technology, and have guaranteed the coaxality of needle pilot hole and valve port, the refrigerant flow noise of avoiding needle off-centre to cause.
The utility model is provided with the main axis direction of valve seat chamber along valve body, has saved the counterbore of valve port upper end, has following beneficial effect: 1) simplify the structure and processing technology when reducing the valve port wearing and tearing, reduced refrigerant flow noise; 2) valve seat and valve seat core adopt and divide body structure, and the valve seat core can adopt the material different with valve seat, so that improve the wear resistance of valve port; Valve seat core location is reliable, technology hidden danger such as can not occur becoming flexible, come off; 3) guaranteed the coaxality of pilot hole and valve port, the refrigerant flow noise of avoiding needle off-centre to cause; 4) avoided heavy caliber valve flow bottleneck less than normal.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described.
Fig. 1 is the structural representation of existing electric expansion valve.
Fig. 2 is a structural representation of the present utility model.
Fig. 3 is the figure that cooperates of valve seat and valve seat core among Fig. 2.
Embodiment
Electric expansion valve shown in Fig. 2-3, comprise valve body 1, be enclosed within coil and the valve seat 2 that is connected valve body lower portion on the valve body, be positioned at the magnet rotor 9 of valve body, screw mandrel 10 and the nut 11 that is connected on the screw mandrel, needle 12, have the vertical valve seat chamber 3 that is provided with along valve body 1 main axis direction on the valve seat 2, cylindrical hole, valve seat 2 bottoms are inlaid with a valve seat core 7, the external diameter of valve seat core 7 is greater than the diameter of valve seat chamber 3, have the valve port 4 that communicates with valve seat chamber 3 on the valve seat core 7, the valve seat place that is positioned at 3 tops, valve seat chamber has the pilot hole 5 that communicates with valve seat chamber 3, the side of valve seat chamber 3 is communicated with entrance sleeve 6, the bottom of valve seat core 7 is connected with discharge connection 8, and utilizes 8 pairs of valve seat cores 7 of discharge connection to position.The main axis of the center line of pilot hole 5 and valve port 4 and valve body 1 is on same straight line.
Claims (4)
1, a kind of electric expansion valve, comprise valve body (1) and be connected the valve seat (2) of valve body lower portion, have valve seat chamber (3) on the valve seat (2), valve seat chamber (3) communicates with valve port (4), it is characterized in that: described valve seat chamber (3) is a vertical cylindrical hole along the setting of valve body (1) main axis direction, the valve seat place that is positioned at top, valve seat chamber (3) has a pilot hole (5) that communicates with valve seat chamber (3), and the side of valve seat chamber (3) is communicated with an entrance sleeve (6).
2, a kind of electric expansion valve according to claim 1, the one valve seat core (7) that is positioned at valve seat is arranged at the bottom that it is characterized in that described valve seat chamber (3), the external diameter of this valve seat core (7) is more than or equal to the diameter of valve seat chamber (3), and described valve port (4) is arranged on the valve seat core (7).
3, a kind of electric expansion valve according to claim 2 is characterized in that valve seat core (7) is embedded in the valve seat (2), and the bottom of valve seat core (7) is connected with a discharge connection (8).
4, according to claim 2 or 3 described a kind of electric expansion valves, the main axis that it is characterized in that the center line of described pilot hole (5) and valve port (4) and valve body (1) is on same straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520101881 CN2797792Y (en) | 2005-04-28 | 2005-04-28 | Electronic expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520101881 CN2797792Y (en) | 2005-04-28 | 2005-04-28 | Electronic expansion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2797792Y true CN2797792Y (en) | 2006-07-19 |
Family
ID=36869034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520101881 Expired - Lifetime CN2797792Y (en) | 2005-04-28 | 2005-04-28 | Electronic expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2797792Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245138A (en) * | 2012-02-10 | 2013-08-14 | 株式会社鹭宫制作所 | Expansion valve |
| WO2016074555A1 (en) * | 2014-11-13 | 2016-05-19 | 浙江三花股份有限公司 | Electronic 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 |
-
2005
- 2005-04-28 CN CN 200520101881 patent/CN2797792Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245138A (en) * | 2012-02-10 | 2013-08-14 | 株式会社鹭宫制作所 | Expansion valve |
| CN103245138B (en) * | 2012-02-10 | 2015-07-01 | 株式会社鹭宫制作所 | Expansion valve |
| WO2016074555A1 (en) * | 2014-11-13 | 2016-05-19 | 浙江三花股份有限公司 | Electronic 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 |
| CN111102367A (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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2797792Y (en) | Electronic expansion valve | |
| CN200946700Y (en) | Run-through type check valve | |
| CN101078442A (en) | Direct-action electromagnetic valve | |
| CN2619098Y (en) | Two-way flow pilot type electromagnetic valve | |
| CN109555971B (en) | Concentrator pipeline system and control flow thereof | |
| CN2777294Y (en) | Electro-magnetic valve having separated valve base | |
| CN2844599Y (en) | Constant-flow water-saving valve | |
| CN201954048U (en) | Integrated valve | |
| CN2743635Y (en) | New type straight moving electro magnetic valve | |
| CN201237005Y (en) | Novel electromagnetic fluid control valve | |
| CN102221103A (en) | Regulating valve with double valve seats | |
| CN206093141U (en) | Electronic expansion valve valve rod limit structure | |
| CN2619099Y (en) | Normally open DC electromagnetic valve with throtting and voltage reducing | |
| CN101418870B (en) | High power high-temperature solenoid valve | |
| CN2747424Y (en) | Electronic expansion valve | |
| CN200979004Y (en) | Digital display flow quantity differential pressure valve | |
| CN200982426Y (en) | Pilot valve core of spill valve | |
| CN2339815Y (en) | Super-high-pressure plunger pump one-way valve | |
| CN220870198U (en) | Double-position valve seat of pilot electromagnetic valve | |
| CN2662034Y (en) | Bistable pulse control type electromagnetic valve apparatus | |
| CN2898477Y (en) | High-pressure urea angular adjusting valve | |
| CN2850819Y (en) | Bearing inner and outer ring superfine grinding hone fluid pressurizing control device | |
| CN219712397U (en) | Modularized assembled valve | |
| CN217950836U (en) | Central rotary valve group assembly | |
| CN220904344U (en) | Electromagnetic valve blowing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150428 Granted publication date: 20060719 |