CN102767924A - Electronic expansion valve - Google Patents
Electronic expansion valve Download PDFInfo
- Publication number
- CN102767924A CN102767924A CN201210224644XA CN201210224644A CN102767924A CN 102767924 A CN102767924 A CN 102767924A CN 201210224644X A CN201210224644X A CN 201210224644XA CN 201210224644 A CN201210224644 A CN 201210224644A CN 102767924 A CN102767924 A CN 102767924A
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- Prior art keywords
- hole
- valve
- valve seat
- electric expansion
- short
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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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Abstract
The invention discloses an electronic expansion valve, which comprises a valve body, wherein the valve body is provided with an inlet and an outlet; a valve seat is arranged in the outlet; an outlet connecting pipe is arranged on the outlet; the valve seat is provided with an orifice matched with a valve needle and adjusted by a valve needle, and the inner cavity of the valve body is communicated with the outlet connecting pipe through the orifice; and the valve seat is also provided with a short pipe orifice for communicating the inner cavity of the valve body and the outlet connecting pipe. The valve seat is provided with the short pipe orifice for substituting a capillary, so that the electronic expansion valve is simple in structure and convenient to manufacture, the problem about connection between the electronic expansion valve and the capillary is solved, the material cost is reduced, and the manufacturing cost is also reduced; and by adopting the integrated structure, the electronic expansion valve is directly used.
Description
Technical field
The present invention relates to field of Refrigeration and Air-conditioning, particularly a kind of electric expansion valve.
Background technology
In order to increase the restriction effect of electric expansion valve; Adopt electric expansion valve to be connected with the capillary serial or parallel connection and realize that capillary is accomplished roughly throttling and regulated, electric expansion valve is accomplished accurate throttling and is regulated; But cost capillaceous is than higher; Have in addition China national Department of Intellectual Property November in 2009 Granted publication on the 18th a name be called " a kind of throttling arrangement of refrigeration heat pump system " utility model patent, Granted publication number is 201348409, discloses a kind of throttling arrangement of refrigeration heat pump system in this patent specification; Adopt electric expansion valve to be connected realization with distortion connecting line serial or parallel connection; Substitute capillary with the distortion connecting line, but the pipeline at electric expansion valve place be out of shape being connected between the connecting line and still need weld or other connected modes the manufacture craft more complicated; Though saved material cost capillaceous, on cost of manufacture, still be not reduced.
Summary of the invention
Problem to be solved by this invention just provides a kind of electric expansion valve, has not only saved material cost, but also has saved cost of manufacture, reaches the effect of effective throttling.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme: electric expansion valve comprises valve body; Said valve body is provided with import and outlet; Be provided with valve seat in the said outlet, outlet is provided with discharge connection, and said valve seat is provided with the throttle orifice that cooperates with needle and regulated by needle; Throttle orifice is communicated with body cavity with discharge connection, it is characterized in that: also be provided with the short-tube restrictor hole that body cavity is communicated with discharge connection on the said valve seat.
Further, said short-tube restrictor hole and throttle orifice parallel axes.
Further, said short-tube restrictor hole and throttle orifice axis normal.
Further, said short-tube restrictor hole is located on the valve seat side away from import.
Further, the lower end of said valve seat is provided with the noise reduction hole, and said throttle orifice is communicated with the noise reduction hole.
Further, said short-tube restrictor hole is communicated with the noise reduction hole.
Further, said noise reduction hole is circular hole or taper hole or the circular hole that is provided with taper hole for the lower end.
Further, said valve seat and valve body are structure as a whole.
Further, said electric expansion valve comprises the adjusting nut that is located in the valve body, and said adjusting nut is fixedly connected with valve seat, and said valve seat is provided with the opening that body cavity is communicated with throttle orifice and short-tube restrictor hole.
Further, said adjusting nut and valve seat are structure as a whole.
After adopting technique scheme, the present invention has following advantage: the short-tube restrictor hole is set on valve seat substitutes capillary, and not only simple in structure; Also convenient in manufacture craft; Omit electric expansion valve and connectivity problem capillaceous, when having saved material cost, also saved cost of manufacture; Adopt integral structure, directly use.
Description of drawings
Below in conjunction with accompanying drawing the present invention is described further:
Fig. 1 is the structural representation of first kind of embodiment of the present invention;
Fig. 2 is the structural representation of valve seat among second kind of embodiment of the present invention;
Fig. 3 is the structural representation of valve body among the third embodiment of the present invention and valve seat;
Fig. 4 is the structural representation of the 4th kind of embodiment of the present invention;
Fig. 5 is the structural representation of the 5th kind of embodiment of the present invention.
The specific embodiment
Embodiment one:
An embodiment of the present invention as shown in Figure 1, electric expansion valve comprises valve body 1; Said valve body is provided with import and outlet; Be provided with valve seat 2 in the said outlet, outlet is provided with discharge connection 11, and said valve seat is provided with the throttle orifice 21 that cooperates with needle 3 and regulated by needle; Throttle orifice is communicated with body cavity with discharge connection, also be provided with the short-tube restrictor hole 22 that body cavity is communicated with discharge connection on the said valve seat.In the present embodiment, said short-tube restrictor hole and throttle orifice parallel axes.The lower end of said valve seat is provided with noise reduction hole 23, and said throttle orifice is communicated with the noise reduction hole.Said noise reduction hole is circular hole or taper hole,, has selected taper hole here.
Embodiment two:
As shown in Figure 2, the structure of present embodiment and embodiment once structure difference be said short-tube restrictor hole and throttle orifice axis normal.And said short-tube restrictor hole is communicated with the noise reduction hole, and promptly the shared noise reduction of short-tube restrictor hole and throttle orifice hole reduces noise.Said in addition noise reduction hole is the circular hole that the lower end is provided with taper hole.Flow is accurately controlled during reverse flow like this.
Embodiment three:
As shown in Figure 3, in the present embodiment, said valve seat and valve body are structure as a whole.And all can apply in the present embodiment with structure among the embodiment two at embodiment one about short-tube restrictor hole and noise reduction hole, here, short-tube restrictor hole and throttle orifice parallel axes, taper hole has been selected in the noise reduction hole.
Embodiment four:
As shown in Figure 4, said electric expansion valve comprises the adjusting nut 4 that is located in the valve body, and said adjusting nut is connected with valve seat, and said valve seat is provided with the opening 24 that body cavity is communicated with throttle orifice and short-tube restrictor hole.Be provided with the caulking groove that docks with adjusting nut on the valve seat here.The direct setscrew nut of valve seat improves precision like this.
Embodiment five:
As shown in Figure 5, on the architecture basics of embodiment four, said adjusting nut and valve seat are structure as a whole.
Among the present invention, the short-tube restrictor hole is set on valve seat substitutes capillary, not only simple in structure, also convenient in manufacture craft, omitted electric expansion valve and connectivity problem capillaceous, adopt integral structure, directly use.
In addition, in above-mentioned all embodiment, said short-tube restrictor hole is located on the valve seat side away from import.Can evenly shunt through needle like this, reduce noise.
Except that above-mentioned preferred embodiment, the present invention also has other embodiment, and those skilled in the art can make various changes and distortion according to the present invention, only otherwise break away from spirit of the present invention, all should belong to the defined scope of accompanying claims of the present invention.
Claims (10)
1. electric expansion valve; Comprise valve body (1), said valve body is provided with import and outlet, is provided with valve seat (2) in the said outlet; Outlet is provided with discharge connection (11); Said valve seat is provided with the throttle orifice (21) that cooperates with needle (3) and regulated by needle, and throttle orifice is communicated with body cavity with discharge connection, it is characterized in that: also be provided with the short-tube restrictor hole (22) that body cavity is communicated with discharge connection on the said valve seat.
2. electric expansion valve according to claim 1 is characterized in that: said short-tube restrictor hole and throttle orifice parallel axes.
3. electric expansion valve according to claim 1 is characterized in that: said short-tube restrictor hole and throttle orifice axis normal.
4. according to claim 1 or 2 or 3 described electric expansion valves, it is characterized in that: said short-tube restrictor hole is located on the valve seat side away from import.
5. according to claim 1 or 2 or 3 described electric expansion valves, it is characterized in that: the lower end of said valve seat is provided with noise reduction hole (23), and said throttle orifice is communicated with the noise reduction hole.
6. electric expansion valve according to claim 5 is characterized in that: said short-tube restrictor hole is communicated with the noise reduction hole.
7. electric expansion valve according to claim 6 is characterized in that: said noise reduction hole is circular hole or taper hole or the circular hole that is provided with taper hole for the lower end.
8. according to claim 1 or 2 or 3 described electric expansion valves, it is characterized in that: said valve seat and valve body are structure as a whole.
9. according to claim 1 or 2 or 3 described electric expansion valves; It is characterized in that: said electric expansion valve comprises the adjusting nut (4) that is located in the valve body; Said adjusting nut is fixedly connected with valve seat, and said valve seat is provided with the opening (24) that body cavity is communicated with throttle orifice and short-tube restrictor hole.
10. electric expansion valve according to claim 9 is characterized in that: said adjusting nut and valve seat are structure as a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210224644XA CN102767924A (en) | 2012-06-28 | 2012-06-28 | Electronic expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210224644XA CN102767924A (en) | 2012-06-28 | 2012-06-28 | Electronic expansion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102767924A true CN102767924A (en) | 2012-11-07 |
Family
ID=47095419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210224644XA Pending CN102767924A (en) | 2012-06-28 | 2012-06-28 | Electronic expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102767924A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148651A (en) * | 2013-03-26 | 2013-06-12 | 东莞市金瑞五金制品有限公司 | Expansion valve |
| CN103836851A (en) * | 2014-03-25 | 2014-06-04 | 浙江三花股份有限公司 | Valve seat assembly of electronic expansion valve and manufacturing method of valve seat assembly |
| CN106855128A (en) * | 2015-12-09 | 2017-06-16 | 浙江三花智能控制股份有限公司 | Two-period form electric expansion valve |
| CN106870750A (en) * | 2015-12-10 | 2017-06-20 | 浙江三花智能控制股份有限公司 | Two-period form electric expansion valve |
| CN107356025A (en) * | 2016-05-10 | 2017-11-17 | 浙江三花智能控制股份有限公司 | Electric expansion valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07332807A (en) * | 1994-06-09 | 1995-12-22 | Nippondenso Co Ltd | Suprecooling control valve and refrigeration cycle |
| US6321995B1 (en) * | 1999-10-21 | 2001-11-27 | Parker-Hannifin Corporation | Thermostatic expansion valve |
| JP2005351605A (en) * | 2004-06-14 | 2005-12-22 | Daikin Ind Ltd | Expansion valve and refrigeration device |
| CN2846913Y (en) * | 2005-12-08 | 2006-12-13 | 浙江中宝自控元件有限公司 | Electronic expansion valve |
| CN201121713Y (en) * | 2007-11-06 | 2008-09-24 | 浙江三花股份有限公司 | Valve structure and electronic expansion valve |
-
2012
- 2012-06-28 CN CN201210224644XA patent/CN102767924A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07332807A (en) * | 1994-06-09 | 1995-12-22 | Nippondenso Co Ltd | Suprecooling control valve and refrigeration cycle |
| US6321995B1 (en) * | 1999-10-21 | 2001-11-27 | Parker-Hannifin Corporation | Thermostatic expansion valve |
| JP2005351605A (en) * | 2004-06-14 | 2005-12-22 | Daikin Ind Ltd | Expansion valve and refrigeration device |
| CN2846913Y (en) * | 2005-12-08 | 2006-12-13 | 浙江中宝自控元件有限公司 | Electronic expansion valve |
| CN201121713Y (en) * | 2007-11-06 | 2008-09-24 | 浙江三花股份有限公司 | Valve structure and electronic expansion valve |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148651A (en) * | 2013-03-26 | 2013-06-12 | 东莞市金瑞五金制品有限公司 | Expansion valve |
| CN103148651B (en) * | 2013-03-26 | 2015-07-08 | 东莞市金瑞五金制品有限公司 | Expansion valve |
| CN103836851A (en) * | 2014-03-25 | 2014-06-04 | 浙江三花股份有限公司 | Valve seat assembly of electronic expansion valve and manufacturing method of valve seat assembly |
| CN106855128A (en) * | 2015-12-09 | 2017-06-16 | 浙江三花智能控制股份有限公司 | Two-period form electric expansion valve |
| CN106870750A (en) * | 2015-12-10 | 2017-06-20 | 浙江三花智能控制股份有限公司 | Two-period form electric expansion valve |
| CN107356025A (en) * | 2016-05-10 | 2017-11-17 | 浙江三花智能控制股份有限公司 | Electric expansion valve |
| CN107356025B (en) * | 2016-05-10 | 2021-08-10 | 浙江三花智能控制股份有限公司 | Electronic expansion valve |
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| PB01 | Publication | ||
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Application publication date: 20121107 |