CN203176392U - Electronic expansion valve - Google Patents
Electronic expansion valve Download PDFInfo
- Publication number
- CN203176392U CN203176392U CN 201320220639 CN201320220639U CN203176392U CN 203176392 U CN203176392 U CN 203176392U CN 201320220639 CN201320220639 CN 201320220639 CN 201320220639 U CN201320220639 U CN 201320220639U CN 203176392 U CN203176392 U CN 203176392U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- supporting sleeve
- valve rod
- 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.)
- Expired - Fee Related
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- Electrically Driven Valve-Operating Means (AREA)
Abstract
The utility model discloses an electronic expansion valve, and belongs to the field of refrigeration parts. A limiting mechanism of the existing electronic expansion valve is complicated in structure and higher in cost. The electronic expansion valve is characterized in that a support sleeve is arranged in an inner cavity of a valve body, and is in a two-end-opened cylinder shape; an inner flanging facing towards a center line of the support sleeve is arranged at an opening at the upper end of the support sleeve; a bulge is arranged at the lower end of a valve rod; the width of the cross section of the bulge is greater than the inner diameter of the opening at the upper end of a through hole of the support sleeve; the lower end of the valve rod is arranged in the inner cavity of the support sleeve; the valve rod can move up and down in the inner cavity of the support sleeve to control displacement of the valve rod; a valve needle is fixedly mounted at the lower end of the through hole of the support sleeve, and is over against a valve hole in the valve body; and the valve rod is connected with the valve needle by an elastic piece. According to the electronic expansion valve, the support sleeve is arranged in the inner cavity of the valve body, and the lower end of the valve rod is arranged in the inner cavity of the support sleeve, so that a limiting effect of the valve rod can be achieved; the electronic expansion valve is simple in structure; and the cost of the expansion valve is lowered.
Description
Technical field
The utility model belongs to refrigeration accessory field, and is especially relevant with a kind of electric expansion valve.
Background technique
The final controlling element of existing electric expansion valve mainly comprises valve body, shell, coil, rotor, valve rod and needle, sends instruction by controller, and the control rotor rotates and reverse, thereby regulates the aperture between needle and the valve opening, regulates the flow of refrigeration agent.Because the rotor of existing electric expansion valve is spacing by position-limit mechanism when rotating, thus the displacement of control valve rod, thus come the top of Protective valve pole pair body cavity and needle to the impact of valve opening.Because existing position-limit mechanism component are more, structure is comparatively complicated, has increased the cost of electric expansion valve.
The model utility content
The purpose of this utility model is intended to overcome the higher defective of complex structure, cost of the position-limit mechanism existence that has electric expansion valve now, provides a kind of structure comparatively simple electric expansion valve.
For this reason, the utility model is by the following technical solutions: a kind of electric expansion valve, comprise valve body, shell, coil, rotor, valve rod and needle, the lower end of valve body arranges valve opening, output tube is fixedly installed in the lower end of valve opening, the upper end of valve body is provided with through hole, shell is fixedly installed in the valve body upper end, shell inner cavity and body cavity connect by the through hole of described valve body upper end, the sidepiece of valve body is provided with supplying tube, rotor is arranged in the shell inner cavity, valve rod is connected with rotor, mounting coil is in the outer circumferential face of shell, it is characterized in that, described electric expansion valve also comprises supporting sleeve, supporting sleeve is fixed in the inner chamber of valve body, supporting sleeve is the tubular of both ends open, the opening of supporting sleeve upper end is provided with the in-flanges towards the supporting sleeve center line, and the lower end of valve rod is provided with projection, and the cross-sectional width of projection is greater than the opening internal diameter of the through hole upper end of described supporting sleeve, the lower end of valve rod is arranged in the inner chamber of supporting sleeve, valve rod can move up and down in the supporting sleeve inner chamber, thus the displacement amount of control valve rod, and needle is fixedly installed in the through hole lower end of described supporting sleeve, needle is right against the valve opening on the described valve body, is connected by elastic component between valve rod and the needle.
As to technique scheme replenish and perfect, the utility model also comprises following technical characteristics.
Described supporting sleeve is fixed by supporting frame, and supporting frame fixedly is welded on the internal chamber wall of valve body.
Described elastic component is spring.
Described valve rod upper end is fixed by supporting mechanism.
Described supporting mechanism is bearing.
Use the utility model can reach following beneficial effect: the utility model is by arranging supporting sleeve in the inner chamber of valve body, the lower end of valve rod is arranged in the inner chamber of supporting sleeve, thereby reach the limit effect of valve rod, simple in structure, reduced the cost of electric expansion valve.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described in detail.
As shown in Figure 1, the utility model comprises valve body 5, shell 1, coil 2, rotor 13, supporting sleeve 3, valve rod 12 and needle 8, the lower end of valve body 5 arranges valve opening 7, output tube 6 is fixedly installed in the lower end of valve opening 7, the upper end of valve body 5 is provided with through hole, through hole and body cavity connect, shell 1 is fixedly installed in the valve body upper end, shell inner cavity and body cavity connect by the through hole of described valve body upper end, the sidepiece of valve body 5 is provided with supplying tube 4, rotor 13 is arranged in the shell inner cavity, and valve rod 12 is connected with rotor 13, and coil 2 is set in the outer circumferential face of shell 1; Supporting sleeve 3 is fixing by supporting frame 10, supporting frame 10 fixedly is welded on the internal chamber wall of described valve body 5, supporting sleeve 3 is the tubular of both ends open, the opening of supporting sleeve upper end is provided with the in-flanges towards the supporting sleeve center line, the lower end of valve rod 12 is provided with projection 11, the cross-sectional width of projection 11 is greater than the opening internal diameter of the through hole upper end of described supporting sleeve 3, the lower end of valve rod 12 is arranged in the inner chamber of supporting sleeve 3, valve rod 12 can move up and down in the supporting sleeve inner chamber, thereby the displacement amount of control valve rod 12, needle 8 is fixedly installed in the through hole lower end of described supporting sleeve 3, needle 8 is right against the valve opening on the described valve body 5, be connected by elastic component 9 between valve rod 12 and the needle 8, preferably adopt spring; The valve rod upper end is fixing by supporting mechanism 14, preferably adopts bearing.
Claims (5)
1. electric expansion valve, comprise valve body (5), shell (1), coil (2), rotor (13), valve rod (12) and needle (8), the lower end of valve body (5) arranges valve opening (7), output tube (6) is fixedly installed in the lower end of valve opening (7), the upper end of valve body (5) is provided with through hole, shell (1) is fixedly installed in the valve body upper end, shell inner cavity and body cavity connect by the through hole of described valve body upper end, the sidepiece of valve body (5) is provided with supplying tube (4), rotor (13) is arranged in the shell inner cavity, valve rod (12) is connected with rotor (13), coil (2) is set in the outer circumferential face of shell (1), it is characterized in that: described electric expansion valve also comprises supporting sleeve (3), supporting sleeve (3) is fixed in the inner chamber of valve body (5), supporting sleeve (3) is the tubular of both ends open, the opening of supporting sleeve upper end is provided with the in-flanges towards the supporting sleeve center line, the lower end of valve rod (12) is provided with projection (11), the cross-sectional width of projection (11) is greater than the opening internal diameter of the through hole upper end of described supporting sleeve (3), the lower end of valve rod (12) is arranged in the inner chamber of supporting sleeve (3), needle (8) is fixedly installed in the through hole lower end of described supporting sleeve (3), needle (8) is right against the valve opening on the described valve body (5), is connected by elastic component (9) between valve rod (12) and the needle (8).
2. a kind of electric expansion valve according to claim 1 is characterized in that: described supporting sleeve (3) is fixing by supporting frame (10), and supporting frame (10) fixedly is welded on the internal chamber wall of described valve body (5).
3. a kind of electric expansion valve according to claim 1 and 2, it is characterized in that: described elastic component (9) is spring.
4. a kind of electric expansion valve according to claim 3 is characterized in that: fixing by supporting mechanism (14) on the described valve rod.
5. a kind of electric expansion valve according to claim 4, it is characterized in that: described supporting mechanism (14) is bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320220639 CN203176392U (en) | 2013-04-26 | 2013-04-26 | Electronic expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320220639 CN203176392U (en) | 2013-04-26 | 2013-04-26 | Electronic expansion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203176392U true CN203176392U (en) | 2013-09-04 |
Family
ID=49073089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320220639 Expired - Fee Related CN203176392U (en) | 2013-04-26 | 2013-04-26 | Electronic expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203176392U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018068585A1 (en) * | 2016-10-12 | 2018-04-19 | 诸暨市亿霸电子阀门有限公司 | Novel electronic expansion valve |
| CN110805699A (en) * | 2019-11-22 | 2020-02-18 | 东台市高科技术创业园有限公司 | Electronic expansion valve for refrigerating system |
-
2013
- 2013-04-26 CN CN 201320220639 patent/CN203176392U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018068585A1 (en) * | 2016-10-12 | 2018-04-19 | 诸暨市亿霸电子阀门有限公司 | Novel electronic expansion valve |
| CN110805699A (en) * | 2019-11-22 | 2020-02-18 | 东台市高科技术创业园有限公司 | Electronic expansion valve for refrigerating system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20160426 |