CN204004479U - A kind of electric expansion valve - Google Patents
A kind of electric expansion valve Download PDFInfo
- Publication number
- CN204004479U CN204004479U CN201420476409.6U CN201420476409U CN204004479U CN 204004479 U CN204004479 U CN 204004479U CN 201420476409 U CN201420476409 U CN 201420476409U CN 204004479 U CN204004479 U CN 204004479U
- Authority
- CN
- China
- Prior art keywords
- valve
- seat
- electric expansion
- guide sleeve
- valve 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.)
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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
Abstract
The utility model electric expansion valve, comprise guide sleeve and the valve port seat that offers valve port, the axis of described guide sleeve and the dead in line of valve port, described electric expansion valve also comprises the needle that can move and change valve port openings of sizes in guide sleeve, described guide sleeve and valve port seat separate machined and sheathed, be welded in one.The utility model is for guide sleeve lengthwise but simple in structure, and the flat baroque feature of valve port seat, separates manufacture by guide sleeve and valve port seat, has simplified complexity made in one piece, has reduced raw-material unreasonable waste, easily manufactured, with low cost.
Description
Technical field
The utility model patent relates to field of Refrigeration and Air-conditioning, especially a kind of electric expansion valve for chiller plant.
Background technique
Chiller plant is realized the control of refrigeration flow by electric expansion valve.Electric expansion valve is the principle of utilizing stepper motor, with the forward and reverse rotation of coil drive magnetic rotor component, and the rotating operation of magnetic rotor component is converted into moving up and down of screw mandrel, and drive the valve rod being attached thereto to rise or decline by screw mandrel, control the uninterrupted of electric expansion valve.
In the patent documentation that application number is " CN201010515234.1 ", a kind of mortor operated valve is disclosed, it comprises valve seat and is assembled in valve seat axis direction in order to accommodate the valve core case of needle, described valve core case comprises valve port and guide sleeve, and by needle, the mobile open size of valve port that changes in guide sleeve regulates refrigeration flow to described mortor operated valve.But valve port and the guide sleeve of described valve core case are integrated design, by the moulding of monoblock bar cutting, high cost.
Given this, be necessary to design a kind of new electric expansion valve and solve the problems referred to above.
Summary of the invention
The technical problems to be solved in the utility model is: a kind of easily manufactured, with low cost electric expansion valve is provided.
For achieving the above object, the utility model provides following technological scheme: a kind of electric expansion valve, comprise guide sleeve and the valve port seat that offers valve port, the axis of described guide sleeve and the dead in line of valve port, described electric expansion valve also comprises the needle that can move and change valve port openings of sizes in guide sleeve, described guide sleeve and valve port seat separate machined and sheathed, be welded in one.
Further, described guide sleeve is tubing.
Further, described valve port seat is provided with for the first sheathed positioning step of guide sleeve, and described valve port seat and guide sleeve are combined to form valve core case.
Further, described electric expansion valve also comprises the valve seat of installing for valve core case, and described valve port seat is provided with for the second sheathed positioning step of valve seat.
Further, described valve seat is provided with the step that mates with the second positioning step complementation, and the internal surface after described valve seat coordinates with valve core case is concordant.
Further, described electric expansion valve also comprises valve seat and jointly encloses with valve seat the sleeve pipe that forms electric expansion valve external frame, and described valve port seat is shaped in valve seat.
Further, on described valve seat, group is provided with entrance sleeve and discharge connection, on described guide sleeve, offers suction port, and described entrance sleeve, suction port, valve port and discharge connection form a stream.
Further, described valve port seat is provided with and takes over for export the 3rd sheathed positioning step with respect to the opposite side of the first positioning step.
Compared with prior art, the utility model at least has the following advantages: for guide sleeve lengthwise but simple in structure, the flat baroque feature of valve port seat, guide sleeve and valve port seat are separated to manufacture, simplify complexity made in one piece, reduce raw-material unreasonable waste, easily manufactured, with low cost.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model first embodiment's electric expansion valve.
Fig. 2 is the structural representation of the utility model second embodiment's electric expansion valve.
Embodiment
Refer to Fig. 1 and Fig. 2, describe the embodiment of the utility model electric expansion valve below in conjunction with accompanying drawing in detail.
Refer to Fig. 1, the utility model electric expansion valve 100 comprises valve seat 1, nut seat 3 and the sleeve pipe 6 installed for valve core case 10, described valve core case 10 comprises valve port seat 11 and guide sleeve 2, and described valve port seat 11 is provided with valve port 12, the dead in line of the axis of described guide sleeve 2 and valve port 12.Described electric expansion valve 100 also comprises and can and change the needle 42 of valve port 12 openings of sizes in the interior movement of guide sleeve 2, described guide sleeve 2 and valve port seat 11 separate machined and sheathed, be welded in one, described guide sleeve is tubing.This design is for guide sleeve 2 lengthwises but simple in structure, and the flat baroque feature of valve port seat 11, separates manufacture by guide sleeve 2 and valve port seat 11, has simplified complexity made in one piece, has reduced raw-material unreasonable waste, and easily manufactured, with low cost.
Described valve port seat 11 is provided with for the first sheathed positioning step 111 of guide sleeve 2, and described valve port seat 11 and guide sleeve 2 are combined to form described valve core case 10.Described valve port seat 11 is provided with for the second sheathed positioning step 112 of valve seat 1.Described valve seat 1 be provided with the second positioning step 112 complementations mate step (do not indicate), the internal surface after described valve seat 1 coordinates with valve core case 10 is concordant, to be more conducive to the motion path of smooth and easy fluid.On described valve seat 1, group is provided with entrance sleeve 91 and discharge connection 92, on described guide sleeve 2, offers suction port 21, and described entrance sleeve 91, suction port 21, valve port 12 and discharge connection 92 form a stream.Described valve port seat 11 is provided with and takes over for export 92 the 3rd sheathed positioning steps 113 with respect to the opposite side of the first positioning step 111.The setting of above-mentioned multiple positioning steps, can, for corresponding cooperation assembling provides guiding, also can play better welding or sealing effect simultaneously on the one hand.
After assembling, the position relationship of each parts and working principle are indirectly as attached: guide sleeve 2 is located between nut seat 3 and valve port 12, on nut seat 3, be connected with valve hole part 4, valve hole part 4 comprises screw mandrel 41 and links with screw mandrel 41 and can and change the needle 42 of valve port 12 openings of sizes in the interior movement of guide sleeve 2, screw mandrel 41 is threaded with nut seat 3, needle 41 is along the openings of sizes of guide sleeve 2 Mobile control valve mouths 12, screw mandrel 41 is connected with magnet rotor 5 after stretching out nut seat 3, sleeve pipe 6 connecting valve seats 1 also hide nut seat 3, magnet rotor 5 and guide sleeve 2, jointly enclose and form electric expansion valve 100 external frame sleeve pipe 6 arranged outside coils (not shown) with valve seat 1, coil electricity rear driving magnet rotor 5 rotates, magnet rotor 5 rotates and drives screw mandrel 41 to move axially along nut seat 3, screw mandrel 41 drives needle 42 along guide sleeve 2 axial motions, control the adjusting that needle 42 and the degree that overlaps of valve port 12 realize flow.
In sum, these are only preferred embodiment of the present utility model, should not limit scope of the present utility model with this.For example, the valve seat 1 of the utility model first embodiment's electric expansion valve 100 and valve port seat 11 are point to be arranged, and in Fig. 2 the utility model second embodiment's electric expansion valve 100 ', described valve seat 1 and valve port seat 11 also can be wholely set that (the second example structure and the first example structure are basic identical, therefore continue to use the first embodiment's label, the understanding of concrete structure can be joined the first embodiment's description), then guide sleeve is assembled to then welding on the valve seat with valve port seat, so can make full use of the general character that valve seat and valve port seat belong to flat thin-wall part together, can realize equally technique effect of the present utility model.Be that every simple equivalence of doing according to the utility model claims and description changes and modifies, all should still belong in the scope that the utility model patent contains.
Claims (8)
1. an electric expansion valve, comprise tubulose guide sleeve and the valve port seat that offers valve port, the axis of described guide sleeve and the dead in line of valve port, described electric expansion valve also comprises the needle that can move and change valve port openings of sizes in guide sleeve, it is characterized in that: described guide sleeve and valve port seat separate machined and sheathed, be welded in one.
2. electric expansion valve as claimed in claim 1, is characterized in that: described guide sleeve is tubing.
3. electric expansion valve as claimed in claim 1, is characterized in that: described valve port seat is provided with for the first sheathed positioning step of guide sleeve, and described valve port seat and guide sleeve are combined to form valve core case.
4. electric expansion valve as claimed in claim 3, is characterized in that: described electric expansion valve also comprises the valve seat of installing for valve core case, and described valve port seat is provided with for the second sheathed positioning step of valve seat.
5. electric expansion valve as claimed in claim 4, is characterized in that: described valve seat is provided with the step that mates with the second positioning step complementation, and the internal surface after described valve seat coordinates with valve core case is concordant.
6. electric expansion valve as claimed in claim 3, is characterized in that: described electric expansion valve also comprises valve seat and jointly enclose with valve seat the sleeve pipe that forms electric expansion valve external frame, and described valve port seat is shaped in valve seat.
7. the electric expansion valve as described in any one in claim 4-6, it is characterized in that: on described valve seat, group is provided with entrance sleeve and discharge connection, on described guide sleeve, offer suction port, described entrance sleeve, suction port, valve port and discharge connection form a stream.
8. electric expansion valve as claimed in claim 7, is characterized in that: described valve port seat is provided with and takes over for export the 3rd sheathed positioning step with respect to the opposite side of the first positioning step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420476409.6U CN204004479U (en) | 2013-12-13 | 2014-08-22 | A kind of electric expansion valve |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320815966.1 | 2013-12-13 | ||
| CN201320815966 | 2013-12-13 | ||
| CN201420476409.6U CN204004479U (en) | 2013-12-13 | 2014-08-22 | A kind of electric expansion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204004479U true CN204004479U (en) | 2014-12-10 |
Family
ID=52044482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420476409.6U Active CN204004479U (en) | 2013-12-13 | 2014-08-22 | A kind of electric expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204004479U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061762A (en) * | 2016-12-13 | 2017-08-18 | 盾安环境技术有限公司 | A kind of pilot valve and main valve attachment structure and method |
| CN108692081A (en) * | 2017-04-07 | 2018-10-23 | 浙江盾安机械有限公司 | Electric expansion valve |
-
2014
- 2014-08-22 CN CN201420476409.6U patent/CN204004479U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061762A (en) * | 2016-12-13 | 2017-08-18 | 盾安环境技术有限公司 | A kind of pilot valve and main valve attachment structure and method |
| CN107061762B (en) * | 2016-12-13 | 2022-03-25 | 盾安环境技术有限公司 | Connecting structure and method for pilot valve and main valve body |
| CN114483968A (en) * | 2016-12-13 | 2022-05-13 | 盾安环境技术有限公司 | Connecting structure and method for pilot valve and main valve body |
| CN114483968B (en) * | 2016-12-13 | 2023-06-06 | 盾安环境技术有限公司 | Pilot valve and main valve body connecting structure and method |
| CN108692081A (en) * | 2017-04-07 | 2018-10-23 | 浙江盾安机械有限公司 | Electric expansion valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |