CN207049356U - A kind of new electric expansion valve - Google Patents
A kind of new electric expansion valve Download PDFInfo
- Publication number
- CN207049356U CN207049356U CN201720563030.2U CN201720563030U CN207049356U CN 207049356 U CN207049356 U CN 207049356U CN 201720563030 U CN201720563030 U CN 201720563030U CN 207049356 U CN207049356 U CN 207049356U
- Authority
- CN
- China
- Prior art keywords
- valve
- electric expansion
- rotating shaft
- movable
- drive mechanism
- 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
It the utility model is related to a kind of new electric expansion valve, drive mechanism including valve body, installed in valve body top, the rotating shaft being connected with drive mechanism, the exit of valve body is provided with determines valve with what valve body was molded, rotating shaft bottom key connection has movable valve, the bottom of movable valve abuts against with determining the top of valve, torsion spring is cased with outside rotating shaft, the both ends of torsion spring are respectively and fixedly installed in the torsion spring fixed seat in the side wall in the top and valve body of movable valve.The beneficial effects of the utility model are：By setting the regulative mode being engaged by movable valve with determining valve, and installation one is enclosed on the torsion spring outside rotating shaft between movable valve and valve body madial wall, so that electric expansion valve is in unexpected power-off, the position of movable valve when movable valve being turned into electric expansion valve normal switching-off using the energy that torsion spring is accumulated in itself when drive mechanism can not work, so as to realize function that electric expansion valve is closed automatically after unexpected power-off.
Description
Technical field
It the utility model is related to air conditioner refrigerating accessories field, more particularly to a kind of new electric expansion valve.
Background technology
Electric expansion valve is to adjust evaporator liquid supply rate according to pre-set programs, and it has adapted to the development of refrigeration electromechanical integration
It is required that with the incomparable good characteristic of heating power expansion valve, condition is provided for the intelligentized control method of refrigeration system, is a kind of
Rising auto-control energy-saving element.
The existing electric expansion valve by the use of stepper motor as drive mechanism, needed in unexpected have a power failure by stand-by power supply
It is driven and closes valve, or in the one independent electromagnetic switch valve in the upstream of electric expansion valve or downstream tandem, comes true
Electromagnetic switch valve is closed to block stream automatically when protecting power-off.Both modes, it can all increase the cost of air conditioner refrigerating accessory, because
This needs a kind of electric expansion valve that can be closed automatically after unexpected power-off.
Utility model content
The purpose of this utility model is to overcome problem above existing for prior art, there is provided a kind of new electronic expansion
Valve, it can be closed automatically after unexpected power-off.
To realize above-mentioned technical purpose and the technique effect, the utility model is achieved through the following technical solutions：
A kind of new electric expansion valve, including valve body, the drive mechanism installed in valve body top, be connected with drive mechanism
Rotating shaft, the exit of the valve body is provided with determines valve with valve body shaping, and rotating shaft bottom key connection has movable valve,
The bottom of the movable valve is abutted against with determining the top of valve, and torsion spring is cased with outside the rotating shaft, and the both ends of the torsion spring are solid respectively
Surely it is mounted in the torsion spring fixed seat in the side wall in the top and valve body of movable valve.
Further, it is described to determine valve with being respectively provided with three evenly spaced through holes on movable valve, in electric expansion valve just
When often closing, the through hole on movable valve staggers completely with determining the through hole on valve, no coincidence, and flow tune is carried out in electric expansion valve
During section, movable valve, which rotates, makes the through hole on movable valve with determining the throughhole portions on valve or being completely superposed to form runner.
Further, the bottom of the movable valve has a sliding block straight down, and the top for determining valve has one
Arc chute, the sliding block slide fit are arranged in arc chute.
Further, the top center for determining valve has a hemispherical groove, and the bottom of the rotating shaft is sphere, institute
The bottom rotation for stating rotating shaft is connected in the hemispherical groove for determining valve.
Further, the valve body is divided into drive mechanism installation chamber and Flow-rate adjustment chamber, the drive mechanism installation
Mutually separate between chamber and Flow-rate adjustment chamber, centre leave the opening passed through for rotating shaft, be provided with the opening be socketed in turn
Sealed bearing outside axle, the drive mechanism are fixedly mounted on drive mechanism installation interior, the Flow-rate adjustment chamber side
It is outlet for entrance, bottom side.
Further, the drive mechanism is stepper motor.
Further, the movable valve periphery is socketed with bearing, and the outer ring of the bearing is fixedly mounted on the outlet of valve body
Place.
The beneficial effects of the utility model are：The regulative mode being engaged by setting by movable valve with determining valve, and
Installation one is enclosed on the torsion spring outside rotating shaft between movable valve and valve body madial wall so that electric expansion valve is in unexpected power-off, driving
Movable valve when movable valve being turned into electric expansion valve normal switching-off using the energy that torsion spring is accumulated in itself when mechanism can not work
Position, so as to realize function that electric expansion valve is closed automatically after unexpected power-off.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding to of the present utility model, forms the part of the application,
Schematic description and description of the present utility model is used to explain the utility model, does not form to of the present utility model improper
Limit.In the accompanying drawings：
Fig. 1 is structural representation of the present utility model；
Fig. 2 be when movable valve is located at initial position in Fig. 1 A-A to structural representation；
Fig. 3 be movable valve rotate when Fig. 1 in A-A to structural representation；
Fig. 4 is the upward view of movable valve in the utility model；
Fig. 5 is the top view that valve is determined in the utility model.
Label declaration in figure：1- valve bodies, 101- drive mechanisms installation chamber, 102- Flow-rate adjustments chamber, 103- outlet,
104- entrances, 2- drive mechanisms, 3- rotating shafts, 4- determine valve, 5- movable valves, 6- torsion springs, 7- torsion springs mounting seat, 8- sealing ring axles
Hold, 9- bearings, 10- through holes, 11- runners, 12- sliding blocks, 13- arc chutes, 14- hemispherical grooves.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, the utility model is described in detail.
As shown in Fig. 1 to 5, a kind of new electric expansion valve, including valve body 1, the drive mechanism installed in the top of valve body 1
2nd, the rotating shaft 3 being connected with drive mechanism 2, is provided with the outlet 103 of valve body 1 and valve body 1 is integrally formed determines valve 4, rotating shaft 3
Bottom key connection has movable valve 5, and the bottom of movable valve 5 abuts against with determining the top of valve 4, and torsion spring 6, torsion spring 6 are cased with outside rotating shaft 3
Both ends be respectively and fixedly installed in the torsion spring fixed seat 7 in the side wall in the top and valve body 1 positioned at movable valve 5.
Valve 4 is determined with being respectively provided with three evenly spaced through holes 10 on movable valve 5, in electric expansion valve normal switching-off,
Through hole 10 on movable valve 5 staggers completely with the through hole 10 determined on valve 4, no coincidence, and Flow-rate adjustment is carried out in electric expansion valve
When, movable valve 5, which rotates, makes the through hole 10 on movable valve 5 partially or completely overlap to form runner with the through hole 10 determined on valve 4
11。
By setting the regulative mode being engaged by movable valve 5 with determining valve 4, and in movable valve 5 and the madial wall of valve body 1
Between installation one be enclosed on torsion spring 6 outside rotating shaft 3 so that electric expansion valve is sharp when drive mechanism 2 can not work in unexpected power-off
The position of movable valve 5 when movable valve 5 is turned to electric expansion valve normal switching-off by the energy accumulated with torsion spring 6 itself, so as to real
The function that existing electric expansion valve is closed automatically after unexpected power-off.
The bottom of movable valve 5 has a sliding block 12 straight down, and the top for determining valve 4 has an arc chute 13,
The slide fit of sliding block 12 is arranged in arc chute 13, for limiting movable valve 5 relative to the rotational angle for determining valve 4.
Determining the top center of valve 4 has a hemispherical groove 14, and the bottom of rotating shaft 3 is sphere, and the bottom of rotating shaft 3 turns
It is dynamic to be connected in the hemispherical groove 14 for determining valve 4.
Valve body 1 divides installs chamber 101 and Flow-rate adjustment chamber 102 for drive mechanism, drive mechanism installation chamber 101 with
Mutually separate between Flow-rate adjustment chamber 102, the opening passed through for rotating shaft 3 is left in centre, is provided with and is socketed in outside rotating shaft 3 in opening
Sealed bearing 8, drive mechanism 2 are fixedly mounted in drive mechanism installation room 101, and the side of Flow-rate adjustment chamber 102 is entrance
104th, bottom side is outlet 103.
Drive mechanism 2 is stepper motor.
The periphery of movable valve 5 is socketed with bearing 9, and the outer ring of bearing 9 is fixedly mounted at the outlet 103 of valve body 1.
The advantages of general principle of the present utility model, principal character and the utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Simply illustrate principle of the present utility model, on the premise of the spirit and scope of the utility model is not departed from, the utility model is also
Various changes and modifications are had, these changes and improvements are both fallen within claimed the scope of the utility model.
Claims (7)
1. a kind of new electric expansion valve, including valve body, the drive mechanism installed in valve body top, it is connected with drive mechanism
Rotating shaft, it is characterised in that：The exit of the valve body is provided with determines valve, rotating shaft bottom key connection with what valve body was molded
There is movable valve, the bottom of the movable valve abuts against with determining the top of valve, is cased with torsion spring outside the rotating shaft, and the two of the torsion spring
End is respectively and fixedly installed in the torsion spring fixed seat in the side wall in the top and valve body of movable valve.
2. new electric expansion valve according to claim 1, it is characterised in that：It is described to determine valve with respectively being set on movable valve
There are three evenly spaced through holes, in electric expansion valve normal switching-off, the through hole on movable valve is complete with determining the through hole on valve
Completely wrong to open, no coincidence, when electric expansion valve carries out Flow-rate adjustment, movable valve, which rotates, makes the through hole on movable valve with determining on valve
Throughhole portions or be completely superposed and to form runner.
3. new electric expansion valve according to claim 1, it is characterised in that：The bottom of the movable valve has one to erect
Straight downward sliding block, the top for determining valve have an arc chute, and the sliding block slide fit is arranged in arc chute.
4. new electric expansion valve according to claim 1, it is characterised in that：The top center for determining valve has
One hemispherical groove, the bottom of the rotating shaft is sphere, and the bottom of the rotating shaft rotates the hemispherical groove for being connected to and determining valve
In.
5. new electric expansion valve according to claim 1, it is characterised in that：The valve body is divided into drive mechanism installation
Chamber and Flow-rate adjustment chamber, the drive mechanism install chamber with mutually separating between Flow-rate adjustment chamber, and centre is left for rotating shaft
The opening passed through, the sealed bearing being socketed in outside rotating shaft is installed in the opening, the drive mechanism is fixedly mounted on drive
The installation of motivation structure is indoor, and the Flow-rate adjustment chamber side is entrance, bottom side is outlet.
6. new electric expansion valve according to claim 1 or 5, it is characterised in that：The drive mechanism is stepping electricity
Machine.
7. new electric expansion valve according to claim 1, it is characterised in that：The movable valve periphery is socketed with axle
Hold, the outer ring of the bearing is fixedly mounted on the exit of valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720563030.2U CN207049356U (en) | 2017-05-19 | 2017-05-19 | A kind of new electric expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720563030.2U CN207049356U (en) | 2017-05-19 | 2017-05-19 | A kind of new electric expansion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207049356U true CN207049356U (en) | 2018-02-27 |
Family
ID=61490979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720563030.2U Expired - Fee Related CN207049356U (en) | 2017-05-19 | 2017-05-19 | A kind of new electric expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207049356U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108721709A (en) * | 2018-04-02 | 2018-11-02 | 刘永梅 | A kind of flow regulator for ophthalmic phacoemulsification instrument |
-
2017
- 2017-05-19 CN CN201720563030.2U patent/CN207049356U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108721709A (en) * | 2018-04-02 | 2018-11-02 | 刘永梅 | A kind of flow regulator for ophthalmic phacoemulsification instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180227 Termination date: 20200519 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |