CN203216169U - Improved electronic expansion valve - Google Patents
Improved electronic expansion valve Download PDFInfo
- Publication number
- CN203216169U CN203216169U CN2013202282499U CN201320228249U CN203216169U CN 203216169 U CN203216169 U CN 203216169U CN 2013202282499 U CN2013202282499 U CN 2013202282499U CN 201320228249 U CN201320228249 U CN 201320228249U CN 203216169 U CN203216169 U CN 203216169U
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- CN
- China
- Prior art keywords
- valve
- shell
- needle
- rotor
- annular groove
- 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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- 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 an improved electronic expansion valve, which belongs to the field of refrigerating accessories. The valve hole of the conventional electronic expansion valve has the defect of easiness in wearing. The improved electronic expansion valve comprises a valve body, a shell, a coil, a rotor, a valve rod, a valve needle, an input tube and an output tube, wherein a conical valve hole is formed in the lower end of the valve body; the output tube is connected to the lower end of the valve hole; the shell is fixedly arranged at the upper end of the valve body; the inner cavity of the shell is communicated with the inner cavity of the valve body; the side part of the valve body is provided with the input tube; the rotor is arranged in the inner cavity of the shell; the valve rod is connected with the rotor; the coil is sleeved on the outer peripheral face of the shell; the bottom of the valve rod is provided with an annular groove; the valve needle is fixedly arranged at the lower end of the annular groove; and a spring is arranged in the annular groove. When valve rod is used for driving the valve needle to move downwards, the valve needle is contacted with the valve hole, at the moment, the spring is compressed, and the valve rod does not impact the valve hole under the action of upward elastic force, so that the service life of the valve hole is prolonged.
Description
Technical field
The utility model belongs to refrigeration accessory field, and is especially relevant with a kind of electric expansion valve.
Background technology
The actuator 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 cold-producing medium.Because needle is directly to be fixedly mounted on the valve rod of valve needle, when needle with stem movement in the valve opening of valve seat, when needle cooperates with valve opening, this moment, needle was because limited, valve rod is because inertia, and valve rod produces the impulsive force to valve opening, can be to the valve opening inner wall abrasion under long-time.
The utility model content
The purpose of this utility model is intended to overcome easy the to be frayed defective of the valve opening existence that has electric expansion valve now, the electric expansion valve that provides a kind of valve opening to be difficult for being worn.
For this reason, the utility model is by the following technical solutions: a kind of electric expansion valve of improvement, comprise valve body, shell, coil, rotor, valve rod, needle, input pipe and efferent duct, the lower end of valve body arranges the taper valve opening, efferent duct is undertaken in the lower end of valve opening, shell is fixedly installed in the upper end of valve body, shell inner cavity and body cavity connect, and the sidepiece of valve body is provided with input pipe, and rotor is arranged in the shell inner cavity, valve rod is connected with rotor, mounting coil is characterized in that in the outer peripheral face of shell the bottom of described valve rod is provided with annular groove, described needle is fixedly installed in the lower end of annular groove, in the annular groove inner chamber spring is set.
As to technique scheme replenish and perfect, the utility model also comprises following technical characterictic.
Bearing fixing is passed through in described valve rod upper end.
Use the utility model can reach following beneficial effect: the utility model arranges annular groove by the bottom at valve rod, needle is fixedly installed in the lower end of annular groove, between the end face of annular groove and needle spring is set, when valve rod drive needle moves down, needle contacts with valve opening, spring compression this moment, and valve rod is subjected to elastic force upwards, valve rod can not produce valve opening and impact the life-span of having improved valve opening.
Description of drawings
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in detail.
As shown in Figure 1, the utility model comprises valve body 4, shell 1, coil 9, rotor 2, valve rod 8, needle 6, input pipe 3 and efferent duct 5, the lower end of valve body 4 arranges the taper valve opening, efferent duct 5 is undertaken in the lower end of valve opening, shell 1 is fixedly installed in the upper end of valve body 4, shell inner cavity and body cavity connect, the sidepiece of valve body 4 is provided with input pipe 3, rotor 2 is arranged in the shell inner cavity, and valve rod 8 is connected with rotor 2, and coil 9 is set in the outer peripheral face of shell 1, the bottom of valve rod 8 is provided with annular groove, needle 6 is fixedly installed in the lower end of annular groove, and spring 7 is set in the annular groove inner chamber, and the valve rod upper end is fixing by bearing 10.
Claims (2)
1. the electric expansion valve of an improvement, comprise valve body (4), shell (1), coil (9), rotor (2), valve rod (8), needle (6), input pipe (3) and efferent duct (5), the lower end of valve body (4) arranges the taper valve opening, efferent duct (5) is undertaken in the lower end of valve opening, shell (1) is fixedly installed in the upper end of valve body (4), shell inner cavity and body cavity connect, the sidepiece of valve body (4) is provided with input pipe (3), rotor (2) is arranged in the shell inner cavity, valve rod (8) is connected with rotor (2), coil (9) is set in the outer peripheral face of shell (1), it is characterized in that: the bottom of described valve rod (8) is provided with annular groove, described needle (6) is fixedly installed in the lower end of annular groove, and spring (7) is set in the annular groove inner chamber.
2. the electric expansion valve of a kind of improvement according to claim 1 is characterized in that: fixing by bearing (10) on the described valve rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202282499U CN203216169U (en) | 2013-04-26 | 2013-04-26 | Improved electronic expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202282499U CN203216169U (en) | 2013-04-26 | 2013-04-26 | Improved electronic expansion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203216169U true CN203216169U (en) | 2013-09-25 |
Family
ID=49205696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202282499U Expired - Fee Related CN203216169U (en) | 2013-04-26 | 2013-04-26 | Improved electronic expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203216169U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112324925A (en) * | 2019-08-01 | 2021-02-05 | 马勒国际有限公司 | Method for mounting valve needle and bearing bush in expansion valve of air conditioning system |
-
2013
- 2013-04-26 CN CN2013202282499U patent/CN203216169U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112324925A (en) * | 2019-08-01 | 2021-02-05 | 马勒国际有限公司 | Method for mounting valve needle and bearing bush in expansion valve of air conditioning 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: 20130925 Termination date: 20160426 |