CN2607486Y - Electronic expansion valve - Google Patents
Electronic expansion valve Download PDFInfo
- Publication number
- CN2607486Y CN2607486Y CN 03243806 CN03243806U CN2607486Y CN 2607486 Y CN2607486 Y CN 2607486Y CN 03243806 CN03243806 CN 03243806 CN 03243806 U CN03243806 U CN 03243806U CN 2607486 Y CN2607486 Y CN 2607486Y
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- CN
- China
- Prior art keywords
- stop
- stopper
- pin
- stopping
- cover
- 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
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Abstract
The utility model relates to an electron expansion valve, which mainly consists of a close over part, a stopping part, a loop part, a rotor part and a valve body part, the close over part is melt with the valve body part as a whole, the loop part is fixed on the valve body part, the stopping part consists of a stopping sheath, a pillar mode stopping device which surface top is provided with worm groove which two ends being a decollation structure, the stopping sheath is suited on the stopping device, one stopping melt is fixed on the stopping sheath, which head inserts into the worm groove of the pillar stopping device, thus make the utility model has the advantages of simple, reasonable and compact structure, convenient and reliable use, stable stress state during the work process, smaller stress moment, well use performance, long useful time and etc.
Description
Technical field
The utility model relates to a kind of electric expansion valve that is used for the throttling step-down and regulates flow, belong to the valve class.
Background technique
In the prior art, the structure of electric expansion valve as shown in Figure 1, it is mainly by cover part 1, stop component 2, coil component 3, compositions such as rotor part 4 and valve body parts 5, cover part 1 is integrally welded with valve body parts 5, coil component 3 is fixed on the valve body parts 5, and the stop pin 21 of stop component 2 is fixed on the top screw mandrel 41 of rotor part 4, and 4 of rotor parts link to each other with valve body parts 5 by screw pair.The stopper 22 of stop component 2 sees shown in the accompanying drawing 2 that for offering the thread groove 23 of two ends for the broken end structure on column, the surface head of stop pin 21 inserts in this thread groove and has the gap with it.Stopper 22 is a Spielpassung with the intermediate hole of screw mandrel 41, therefore rotor part 4 links to each other with stopper 22 by stop pin 21, can do spiral helicine relative movement between the two, the circumferential stroke of its relative movement, promptly the stop pin head depends on the angle of revolution of stopper thread groove in the angle of revolution that broken end slides in the thread groove.Be connected with pin 25 on the stopper, its circumferential movement is subjected to the restriction of position-limited lever 26, stop component can only be moved axially, and can not rotate in a circumferential direction.Because rotor part 4 is connected for screw pair with valve body parts 5, therefore rotor part 4 can only be made corkscrew motion, because it is subjected to the restriction of stop component and stop pin simultaneously again, its angle of revolution is determined, because the pitch of screw pair is definite value, so axial stroke is also determined, that is to say that its axial high-low limit position is definite, thereby has also just reached spacing purpose.So needle 51 in the valve body parts and the minimum and maximum limit open degree between the valve port 52 have also just been determined, by the rotation of rotor part 4, have just realized the adjusting of the open degree of valve, have also just realized the throttling expansion of fluid and the purpose of Flow-rate adjustment.But in the said structure, stop component 2 changes in the course of the work with the length of thread engagement in the hole of screw mandrel 41, be that position limit pin walks to stopper and cooperates the distance of section fulcrum to change, and its ultimate range is bigger, therefore its stress also changes, and that is to say that the stress of this kind limit structure changes in the course of the work.
Summary of the invention
The purpose of this utility model is to overcome the deficiency of above-mentioned existence, and the electric expansion valve of the stable and limit structure that moment is less of a kind of stress in the course of the work is provided.It is mainly by cover part, stop component, coil component, rotor part and valve body parts are formed, and cover part and valve body parts are integrally welded, and coil component is fixed on the valve body parts, described stop component is that the column stopper of broken end structure thread groove is formed by offering two ends on stop cover, the surface, the stop cover is socketed on the stopper, and a stop pin is fixed on stop and puts, and its head is inserted in the thread groove of column stopper.
Fixedly connected with the screw mandrel on rotor part top in described column stopper bottom, the stop that is positioned at stopper top puts extension pin, and the position-limited lever that this pin and is fixed on the rotor part socket-connects.
Also can fixedly connected with the cover part upper cover in described stopper top, the stop cover extension that is positioned at the stopper bottom has pin, and the position-limited lever on this pin and the rotor part socket-connects.
The stop on described stopper top cover also can directly be fixed on the cover part, and a pin has been received in the bottom of stopper, and is connected with a upright position-limited lever on the rotor part and socket-connects with pin.
The utility model compared with prior art, have simple and reasonable for structure, compactness, easy to use, reliable, stress is stable in the course of the work, and stressed moment is less, usability is good, characteristics such as long service life.
Description of drawings
Fig. 1 is the prior art constructions schematic representation.
Fig. 2 is the stopper structure schematic representation of prior art.
Fig. 3 is a structural representation of the present utility model.
Fig. 4 is another example structure schematic representation of the present utility model.
Fig. 5 is another example structure schematic representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in detail: shown in Figure 3, the utility model is mainly by cover part 1, stop component 2, coil component 3, compositions such as rotor part 4 and valve body parts 5, cover part 1 is welded into one with valve body parts 5, and coil component 3 is fixed on the valve body parts 5.Stop pin 21 on the stop component 2 is fixed on the stop cover 24.Rotor part 4 links to each other with valve body parts 5 by screw pair; Stopper 22 on the stop component 2 is fixedlyed connected with the screw mandrel 41 of rotor part 4 or is linked together by magnet steel, offers the thread groove 23 of two ends for the broken end structure on its surface, and its structure is same as shown in Figure 2.The head of stop pin 21 is inserted in this groove and has the gap with it.Stopper 22 is a Spielpassung with stop cover 24, therefore rotor part 4 links to each other with stop cover 24 by stop pin 21, can do spiral helicine relative movement between the two, the circumferential stroke of its relative movement, be the angle of revolution that stop pin 21 heads slide in the broken end spiral chute, depend on stopper 22 spiral fluted angles of revolution.Extension is connected to pin 25 on the stop cover 24, the position-limited lever 26 that this pin and is fixed on the cover part 1 socket-connects, and its circumferential movement is subjected to the restriction of position-limited lever 26, and it only limits its circumferential movement, do not limit its axial motion, i.e. stop cover 24 can only move axially and can not rotate in a circumferential direction.Because rotor part 4 and valve body parts 5 be for screw pair is connected, so rotor part 4 can only make corkscrew motion, overlap 24 and the restriction of stop pin 21 owing to it is subjected to stop simultaneously, so its angle of revolution determined; Because the pitch of screw pair is definite value, thus axial stroke also determine, that is to say that its axial high-low limit position determines, thereby also just reached spacing purpose.Therefore needle 51 in the valve body parts 5 and the minimum and maximum limit open degree between the valve port 52 have also just been determined, rotation by rotor part 4, thereby also just realized the adjusting of valve port open degree, therefore also just realized the throttling expansion of fluid and the purpose of Flow-rate adjustment.The utility model is because the length of thread engagement of stopper 22 and stop cover 24 is constant, it equals the length of stop cover 24, and moment is less, so the stress of stop cover 24 is constant in the course of the work, that is to say that the stress of this kind limit structure is constant in the course of the work.
Shown in Figure 4, present embodiment and last embodiment different structure contents be: fixedly connected with the capping on the cover part 1 in described stopper 22 tops, the stop that is positioned at stopper 22 bottoms is overlapped 24 extensions and is connected to pin 25, and this pin 25 socket-connects with a position-limited lever 26 on the rotor part 4.
Shown in Figure 5, present embodiment and the first two embodiment different structure contents be: the stop cover 24 on described stopper 22 tops directly is fixed on the cover part 1, a pin 25 has been received in the bottom of stopper 22, and is connected with a upright position-limited lever 26 on the rotor part 4 and socket-connects with pin 25.
Because embodiment 2 is identical with structure shown in Figure 3 with other structure of 3, so no longer repeat introduction.
Claims (4)
1, a kind of electric expansion valve, it is mainly by cover part, stop component, coil component, rotor part and valve body parts are formed, cover part and valve body parts are integrally welded, coil component is fixed on the valve body parts, it is characterized in that described stop component (2) by offer on stop cover (24), the surface two ends for the broken end structure thread groove (23) column stopper (22) form, stop cover (24) is socketed in (22) on the stopper, one stop pin (21) is fixed on the stop cover (24), and its head is inserted in the thread groove (23) of column stopper.
2, electric expansion valve according to claim 1, it is characterized in that described column stopper (22) bottom fixedlys connected with the screw mandrel (41) on rotor part (4) top, the last extension of stop cover (24) that is positioned at stopper (22) top has pin (25), and the position-limited lever (26) that this pin and is fixed on the rotor part (4) socket-connects.
3, electric expansion valve according to claim 1, it is characterized in that described stopper (22) top fixedlys connected with the capping on the cover part (1), stop cover (24) extension that is positioned at stopper (22) bottom is connected to pin (25), and the position-limited lever (26) on this pin and the rotor part (4) socket-connects.
4, electric expansion valve according to claim 1, (24 directly are fixed on the cover part (1) to it is characterized in that the stop cover on described stopper (22) top, the bottom extension of stopper (22) is connected to a pin (25), and is connected with a upright position-limited lever (26) on the rotor part (4) and socket-connects with pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03243806 CN2607486Y (en) | 2003-03-26 | 2003-03-26 | Electronic expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03243806 CN2607486Y (en) | 2003-03-26 | 2003-03-26 | Electronic expansion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2607486Y true CN2607486Y (en) | 2004-03-24 |
Family
ID=34169096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03243806 Expired - Lifetime CN2607486Y (en) | 2003-03-26 | 2003-03-26 | Electronic expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2607486Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100348897C (en) * | 2004-12-14 | 2007-11-14 | 浙江三花制冷集团有限公司 | Electronic expansion valve |
| CN102207199A (en) * | 2010-03-31 | 2011-10-05 | 浙江三花股份有限公司 | Electronic expansion valve |
| CN102927342A (en) * | 2011-08-09 | 2013-02-13 | 浙江三花股份有限公司 | Electronic expansion valve and valve body component thereof |
| CN103775717A (en) * | 2012-10-22 | 2014-05-07 | 艾默生环境优化技术(苏州)有限公司 | Electronic expansion valve |
| CN103807486A (en) * | 2014-02-19 | 2014-05-21 | 碧茂科技（苏州）有限公司 | Limiting structure for rotor of expansion valve body |
| CN108361386A (en) * | 2017-01-26 | 2018-08-03 | 浙江三花智能控制股份有限公司 | Electric expansion valve |
| CN109708343A (en) * | 2017-10-25 | 2019-05-03 | 浙江盾安禾田金属有限公司 | Electric expansion valve |
| US11261974B2 (en) | 2017-01-26 | 2022-03-01 | Zhejiang Sanhua Intelligent Controls Co., Ltd. | Electronic expansion valve |
-
2003
- 2003-03-26 CN CN 03243806 patent/CN2607486Y/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100348897C (en) * | 2004-12-14 | 2007-11-14 | 浙江三花制冷集团有限公司 | Electronic expansion valve |
| CN102207199A (en) * | 2010-03-31 | 2011-10-05 | 浙江三花股份有限公司 | Electronic expansion valve |
| CN102207199B (en) * | 2010-03-31 | 2015-04-22 | 浙江三花股份有限公司 | Electronic expansion valve |
| CN102927342A (en) * | 2011-08-09 | 2013-02-13 | 浙江三花股份有限公司 | Electronic expansion valve and valve body component thereof |
| CN102927342B (en) * | 2011-08-09 | 2014-05-14 | 浙江三花股份有限公司 | Electronic expansion valve and valve body component thereof |
| CN103775717A (en) * | 2012-10-22 | 2014-05-07 | 艾默生环境优化技术(苏州)有限公司 | Electronic expansion valve |
| CN103775717B (en) * | 2012-10-22 | 2017-08-29 | 艾默生环境优化技术(苏州)有限公司 | Electronic expansion valve |
| CN103807486A (en) * | 2014-02-19 | 2014-05-21 | 碧茂科技（苏州）有限公司 | Limiting structure for rotor of expansion valve body |
| CN108361386A (en) * | 2017-01-26 | 2018-08-03 | 浙江三花智能控制股份有限公司 | Electric expansion valve |
| US11261974B2 (en) | 2017-01-26 | 2022-03-01 | Zhejiang Sanhua Intelligent Controls Co., Ltd. | Electronic expansion valve |
| CN109708343A (en) * | 2017-10-25 | 2019-05-03 | 浙江盾安禾田金属有限公司 | Electric expansion valve |
| CN109708343B (en) * | 2017-10-25 | 2021-12-07 | 浙江盾安禾田金属有限公司 | Electronic expansion valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SANHUA CO., LTD., ZHEJIANG Free format text: FORMER OWNER: ZHEJIANG SANHUA GROUP CO., LTD. Effective date: 20040423 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20040423 Address after: 312500 Liquan, Chengguan Town, Xinchang County, Zhejiang Province Patentee after: Zhejiang Sanhua Group Co., Ltd. Address before: 312500 Liquan, Chengguan Town, Xinchang County, Zhejiang Province Patentee before: Zhejiang Sanhua Group Corp., Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130326 Granted publication date: 20040324 |