CN101581374A - Electric control valve - Google Patents
Electric control valve Download PDFInfo
- Publication number
- CN101581374A CN101581374A CNA2008100710630A CN200810071063A CN101581374A CN 101581374 A CN101581374 A CN 101581374A CN A2008100710630 A CNA2008100710630 A CN A2008100710630A CN 200810071063 A CN200810071063 A CN 200810071063A CN 101581374 A CN101581374 A CN 101581374A
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- Prior art keywords
- valve plug
- opening portion
- valve
- electrically
- stepper motor
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Abstract
The invention relates to an electric control valve, in particular to a valve driven by a stepping motor. The electric control valve comprises an opening part, a valve plug and the stepping motor, wherein the opening part connects the upstream side a fluid passage with the downstream side of the fluid flowing passage, the valve plug is used for adjusting the opening area of the opening part and the flowing state of fluids positioned on the opening part, and the stepping motor enables the valve plug to move relative to the opening part; the opening part is arranged on a fixed plane, the valve plug can be sleeved with a rotating shaft of the stepping motor in an axially sliding way and rotate along with the rotating shaft, a forcing mechanism enables the valve plug to be closely attached to the fixed plane to realize the sealing of a contact surface, and the forcing mechanism is a magnet which is arranged at the rear of the opening part and used for attracting the valve plug or a spring which pushes the valve plug to the opening part. The invention solves the problem that the prior electric control valve is in a complicated structure so as to be unsuitable for the low-cost mass production.
Description
Technical field
The present invention relates to a kind of valve of controlling fluid flow state, particularly relate to a kind of stepper motor driven valve.
Background technique
Usually for the flowing state of control flows body, adopt valve plug to make the solenoid valve of straight reciprocating motion with valve rod more.Vibrations and noise can be produced during this class electrically-controlled valve work, high-precision control can not be carried out.For addressing the above problem, it is 031145259.0 that Chinese invention patent ublic specification of application CN1470789A discloses number of patent application, name is called the technological scheme of " flow control device ", proposes this device and comprises: connect the upstream side of fluid flowing path and the opening portion in downstream side; The valve plug that is used to adjust the opening area of this opening portion and adjusts the fluid flow that passes through this opening portion; And the valve drive that valve plug is relatively moved with respect to opening portion.Valve drive has: as the stepper motor of driving source; And valve plug with the approaching direction of opening portion or the direction of separating on, the revolution of the output shaft of this motor of conversion transfer mechanism that transmit and that constitute by gear train.Valve plug has towards the front end shape of the direction variation in diameter of opening portion, and the fore-end that attenuates enters the inboard of opening portion, carries out the adjustment of aperture.Can not produce vibrations and noise during this device work, and can carry out high-precision control.
But this device also has following shortcoming: 1, and use the valve plug of finger-like to cooperate with the opening portion of syphon shape, this structure manufacture difficulty is big, cost is high; The cheap requirement of mass production of incompatibility.2, it is also too complicated to make rotating moving body and guide barrel construction thereof with valve plug, makes and assembling is all taken a lot of work, required great effort; Also incompatible cheap requirement of mass production.
Summary of the invention
The present invention aims to provide a kind of electrically-controlled valve, and it simple in structure can satisfy cheap requirement of mass production.
Technological scheme of the present invention is: a kind of electrically-controlled valve, comprise: connect the upstream side of fluid flowing path and the opening portion in downstream side, the valve plug that is used to adjust the opening area of this opening portion and adjusts the fluid flow state that passes through this opening portion, and the stepper motor that valve plug is relatively moved with respect to opening portion; Described opening portion is arranged on the fixing plane; Valve plug can be sleeved on axially slidably in the rotating shaft of stepper motor and with this rotating shaft and rotate; A force application mechanism makes valve plug closely abut in this plane, realizes the sealing of surface of contact.
In a kind of enforcement structure of recommendation: described force application mechanism is to be located at the magnet that the opening portion rear attracts valve plug.
In a kind of enforcement structure of recommendation: described force application mechanism is with the spring of valve plug top to opening portion.
In the concrete enforcement structure of a class: have groove corresponding with opening portion or breach on the described valve plug, the angle of the opening area of opening portion and valve plug rotation was the linear ratio relation when valve plug rotated with the rotating shaft of stepper motor.
Wherein the simplest mode of execution is: described opening portion is an angle less than 180 ° arc groove, has corresponding with the opening portion arc groove on the valve plug and shape and all identical groove or the breach of size.
In another kind of concrete enforcement structure: have groove corresponding with opening portion or breach on the described valve plug, the angle of the opening area of opening portion and valve plug rotation was non-linear ratio's relation when valve plug rotated with the rotating shaft of stepper motor.
Wherein the simplest mode of execution is: described opening portion is an angle less than 180 ° arc groove or straight trough, has groove or the breach corresponding with opening portion arc groove or straight trough on the valve plug.
Electrically-controlled valve of the present invention can be sleeved on valve plug axially slidably in the rotating shaft of stepper motor and with this rotating shaft and rotate; By a force application mechanism valve plug is closely abutted in the plane that opening portion is set, realize the sealing of surface of contact.The rotating shaft of stepper motor is rotated, and drives valve plug and rotates relative to opening portion, thereby adjust the opening area of this opening portion and the flowing state that the fluid of this opening portion is passed through in adjustment.It can not produce vibrations and noise when work, can carry out high-precision control; And simple in structure, be easy to processing and assembling, can satisfy cheap requirement of mass production.Force application mechanism can adopt the magnet that is located at opening portion rear attraction valve plug or with the spring of valve plug top to opening portion, structural type is flexible, but all simple.Particularly, by the selector valve groove beyond the Great Wall or the correspondingly-shaped and the size of breach and opening portion, can make the opening area of opening portion and the angle of valve plug rotation present predetermined linear ratio relation or non-linear ratio's relation.And the groove on the valve plug or breach and opening portion all are easy to design and processing.So electrically-controlled valve of the present invention has the structural design simple and flexible, be easy to processing and production, control mode is flexible and precision is high, the characteristics of good reliability.The occasion penetration and promotion that is adapted at various accurate control fluid flow states is used.
Description of drawings
Fig. 1 is an embodiment's of electrically-controlled valve of the present invention deployed configuration schematic representation.
Fig. 2 is the structural representation after Fig. 1 embodiment assembling.
Fig. 3 is the cross-sectional view after Fig. 1 embodiment assembling.
Fig. 4 is the perspective view after Fig. 1 embodiment assembling.
Fig. 5 is the perspective view of the available another kind of valve plug of Fig. 1 embodiment.
The perspective view of available flat board and valve plug when Fig. 6 regulates as the non-linear ratio for Fig. 1 embodiment.
Fig. 7 is another embodiment's of electrically-controlled valve of the present invention deployed configuration schematic representation.
Fig. 8 is Fig. 7 embodiment's a cross-sectional view.
Embodiment
One, embodiment one
An embodiment's of electrically-controlled valve of the present invention deployed configuration, as shown in Figure 1.This electrically-controlled valve comprises: valve body 1, rubber seal 2, magnet 3, the flat board 4 that is provided with opening portion 41, valve plug 5 and stepper motor 6.
Please in conjunction with Fig. 3: the bottom of valve body 1 is that the circular valve pocket 11 of cross setting is arranged at top for the base that installs and fixes usefulness.Valve pocket 11 upper side walls of valve body 1 first gas port 12 of upwards extending out, the distolateral wall of valve pocket 11 is along axis second gas port 13 of outwards extending out.The distolateral wall of valve pocket 11 is provided with a plurality of boss 14 to inner process, and each boss 14 all has screw.The distolateral wall central authorities of valve pocket 11 are provided with a supporting frame 15 magnet 3 are installed along the outside groove of depression of axis in this groove.The left and right sidewall of valve pocket 11 respectively extends outward a lug, and each lug is provided with a screw 16.
Dull and stereotyped 4 is rounded, and opening portion 41 is an angle less than 180 ° arc groove; The screw of corresponding valve pocket 11 each boss 14 has corresponding via hole 42 on dull and stereotyped 4.Rubber seal 2 is placed between each boss 14 of distolateral wall of valve pocket 11; Pass these via holes 42 of dull and stereotyped 4 respectively with screw 43, lock the screw of corresponding boss 14; Make dull and stereotyped 4 to be fixed in the valve pocket 11 and to push down rubber seal 2.So, opening portion 41 becomes the upstream side of connection valve body 1 inner fluid stream and unique passage in downstream side.
Valve plug 5 rounded planars, its central authorities have a hole clipping 51; Its edge has arc groove corresponding and shape and all identical breach 52 of size with dull and stereotyped 1 opening portion 41.Valve plug 5 can be sleeved on axially slidably by hole clipping 51 on the inserted part of rotating shaft 65 front ends of stepper motor 6.
The and arranged on left and right sides of stepper motor 6 respectively extends outward a lug, and each lug is provided with a via hole 63.Pass these via holes 63 of stepper motor 6 respectively with screw 64, lock the screw 16 of valve body 1 valve pocket 11 corresponding lugs, stepper motor 6 is fixed on the valve body 1.Magnet 3 attracts valve plug 5 at dull and stereotyped 4 opening portions 41 rears, valve plug 5 is closely abutted in dull and stereotyped 4, realizes the sealing of surface of contact.Structure after the present embodiment assembling is please referring to Fig. 2 and Fig. 4.Stepper motor 6 links with control circuit by elastic cable paper 61 and plug 62.
When the rotating shaft 65 of stepper motor 6 was rotated, valve plug 5 also rotated thereupon; The variation of 52 jiaos of positions of breach makes dull and stereotyped 4 the opening portion 41 can be from being opened to partial occlusion fully, even blocks fully.Stepper motor 6 drives the opening area that valve plug 5 is adjusted opening portion 41, just adjusts the flowing state by the fluid of this opening portion 41.The angle that the opening area of dull and stereotyped 4 opening portions 41 and valve plug 5 rotate is the linear ratio relation.
Present embodiment also can use valve plug shown in Figure 5 50.Valve plug 50 rounded planars, its central authorities have a hole clipping 501; Its side has arc groove corresponding and shape and all identical arc groove 502 of size with dull and stereotyped 1 opening portion 41.Valve plug 50 can be sleeved on axially slidably by hole clipping 501 on the inserted part of rotating shaft 65 front ends of stepper motor 6.So, when the rotating shaft 65 of stepper motor 6 was rotated, valve plug 50 also rotated thereupon; The variation of 502 jiaos of positions of arc groove makes the arc groove of dull and stereotyped 4 opening portion 41 can be from being opened to partial occlusion fully, even blocks fully.Stepper motor 6 makes valve plug 50 adjust the opening area of opening portion 41, promptly passes through the flowing state of the fluid of this opening portion 41.The angle that the opening area of dull and stereotyped 4 opening portions 41 and valve plug 50 rotate also is the linear ratio relation.
If present embodiment adopts flat board 400 and valve plug 500 shown in Figure 6, then when the rotating shaft 65 of stepper motor 6 was rotated, the angle that the opening area of dull and stereotyped 400 opening portions 4001 and valve plug 500 rotate was non-linear ratio's relation.Among Fig. 6, dull and stereotyped 400 opening portions 4001 are straight trough, and the screw of corresponding valve pocket 11 each boss 14 has corresponding via hole 4002 on the flat board 400.The central authorities of valve plug 500 have a hole clipping 5001; Its side have with dull and stereotyped 400 on the corresponding elliptic arc groove 5002 of straight trough.
In addition, dull and stereotyped opening portion also can adopt the arc groove of angle less than other form of 180 °, for example the arc groove of the little rotation water droplet formula in big other end; And on valve plug, have groove corresponding or breach with this arc groove.Make that the angle that the opening area of this flat board opening portion and valve plug rotate is non-linear ratio's relation when the rotating shaft 65 of stepper motor 6 is rotated.
Two, embodiment two
An embodiment's of electrically-controlled valve of the present invention deployed configuration, as shown in Figure 7.This electrically-controlled valve comprises: valve body 1 ', rubber seal 2 ', spring 3 ', be provided with opening portion 41 ' flat board 4 ', valve plug 5 ' and stepper motor 6 '.
Please in conjunction with Fig. 8: valve body 1 ' the bottom be for installing and fixing the base of usefulness, top have the circular valve pocket 11 of cross setting '.Valve body 1 ' valve pocket 11 ' upper side wall upwards extend out first gas port 12 ', valve pocket 11 ' distolateral wall along axis outwards extend out second gas port 13 '.Valve pocket 11 ' distolateral wall be provided with a plurality of boss 14 to inner process ', each boss 14 ' all have screw.Valve pocket 11 ' distolateral wall central authorities along axis outwards the groove of depression '.Valve pocket 11 ' left and right sidewall respectively extend outward a lug, each lug be provided with a screw 16 '.
Dull and stereotyped 4 ' rounded, opening portion 41 ' be angle is less than 180 ° arc groove; Dull and stereotyped 4 ' go up corresponding valve pocket 11 ' each boss 14 ' screw have corresponding via hole 42 '.With rubber seal 2 ' be placed on valve pocket 11 ' each boss 14 of distolateral wall ' between; Respectively with screw 43 ' pass dull and stereotyped 4 ' these via holes 42 ', lock corresponding boss 14 ' screw; Make dull and stereotyped 4 ' be fixed on valve pocket 11 ' interior and push down rubber seal 2 '.Opening portion 41 ' be to connect the upstream side of valve body 1 ' inner fluid stream and unique passage in downstream side.
Valve plug 5 ' rounded planar, its central authorities have a hole clipping 51 '; Its edge have with dull and stereotyped 1 ' opening portion 41 ' the corresponding and shape of arc groove and all identical arc groove 52 of size '.Spring 3 ' be sleeved on stepper motor 6 ' rotating shaft 65 ' on.Valve plug 5 ' by hole clipping 51 ' can be sleeved on axially slidably stepper motor 6 ' the inserted part of rotating shaft 65 ' front end on.
Stepper motor 6 ' and arranged on left and right sides respectively extend outward a lug, each lug be provided with a via hole 63 '.Respectively with screw 64 ' pass stepper motor 6 ' these via holes 63 ', lock the screw 16 of valve body 1 ' valve pocket 11 ' corresponding lug ', make stepper motor 6 ' be fixed on valve body 1 ' on.Spring 3 ' with valve plug 5 ' top to dull and stereotyped 4 ' opening portion 41 ', make valve plug 5 ' with dull and stereotyped 4 ' closely abut in, realize the sealing of surface of contact.Stepper motor 6 ' by elastic cable paper 61 ' and plug 62 ' link with control circuit.
When stepper motor 6 ' rotating shaft 65 ' rotation the time, valve plug 5 ' also thereupon rotate; The variation of position, arc groove 52 ' angle, make dull and stereotyped 4 ' opening portion 41 ' can be from being opened to partial occlusion fully, even block fully.Stepper motor 6 ' drive valve plug 5 ' adjustment opening portion 41 ' opening area, just adjust by this opening portion 41 ' the flowing state of fluid.Dull and stereotyped 4 ' opening portion 41 ' opening area and the angle of valve plug 5 ' rotation be the linear ratio relation.
If present embodiment adopts flat board 400 and valve plug 500 shown in Figure 6, then when stepper motor 6 ' rotating shaft 65 ' rotations the time, the angle of the opening area of dull and stereotyped 400 opening portions 4001 and valve plug 500 rotations is the non-linear ratio and concerns.Among Fig. 6, dull and stereotyped 400 opening portions 4001 are straight trough, corresponding valve pocket 11 ' each boss 14 on dull and stereotyped 400 ' screw have corresponding via hole 4002.The central authorities of valve plug 500 have a hole clipping 5001; Its side have with dull and stereotyped 400 on the corresponding elliptic arc groove 5002 of straight trough.
In addition, dull and stereotyped opening portion also can adopt the arc groove of angle less than other form of 180 °, for example the arc groove of the little rotation water droplet formula in big other end; And on valve plug, have groove corresponding or breach with this arc groove.Also can so that stepper motor 6 ' rotating shaft 65 ' rotation the time, the angle that the opening area of this flat board opening portion and valve plug rotate is non-linear ratio's relation.
The above, only be preferred embodiment of the present invention, do not limit scope of the invention process with this, the equivalence of doing according to technological scheme of the present invention and description changes and modification, for example uses marmem or piezoelectric constant or magnetostriction materials or other retractable material and material to substitute spring or the like; All should belong to the scope that the present invention is contained.
Claims (7)
1. electrically-controlled valve, comprise: connect the upstream side of fluid flowing path and the opening portion in downstream side, the valve plug that is used to adjust the opening area of this opening portion and adjusts the fluid flow state that passes through this opening portion, and the stepper motor that valve plug is relatively moved with respect to opening portion; It is characterized in that: described opening portion is arranged on the fixing plane; Valve plug can be sleeved on axially slidably in the rotating shaft of stepper motor and with this rotating shaft and rotate; A force application mechanism makes valve plug closely abut in this plane, realizes the sealing of surface of contact.
2. a kind of electrically-controlled valve according to claim 1 is characterized in that: described force application mechanism is to be located at the magnet that the opening portion rear attracts valve plug.
3. a kind of electrically-controlled valve according to claim 1 is characterized in that: described force application mechanism is for pushing up valve plug on the spring to opening portion.
4. according to claim 1 or 2 or 3 described a kind of electrically-controlled valve, it is characterized in that: have groove corresponding with opening portion or breach on the described valve plug, the angle of the opening area of opening portion and valve plug rotation was the linear ratio relation when valve plug rotated with the rotating shaft of stepper motor.
5. a kind of electrically-controlled valve according to claim 4 is characterized in that: described opening portion is an angle less than 180 ° arc groove, has corresponding with the opening portion arc groove on the valve plug and shape and all identical groove or the breach of size.
6. according to claim 1 or 2 or 3 described a kind of electrically-controlled valve, it is characterized in that: have groove corresponding with opening portion or breach on the described valve plug, the angle of the opening area of opening portion and valve plug rotation was non-linear ratio's relation when valve plug rotated with the rotating shaft of stepper motor.
7. a kind of electrically-controlled valve according to claim 6 is characterized in that: described opening portion is an angle less than 180 ° arc groove or straight trough, has groove or the breach corresponding with opening portion arc groove or straight trough on the valve plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100710630A CN101581374A (en) | 2008-05-14 | 2008-05-14 | Electric control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100710630A CN101581374A (en) | 2008-05-14 | 2008-05-14 | Electric control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101581374A true CN101581374A (en) | 2009-11-18 |
Family
ID=41363647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100710630A Pending CN101581374A (en) | 2008-05-14 | 2008-05-14 | Electric control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101581374A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105805329A (en) * | 2016-04-22 | 2016-07-27 | 中山市金艺金属制品有限公司 | Stepless regulation gas valve |
-
2008
- 2008-05-14 CN CNA2008100710630A patent/CN101581374A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105805329A (en) * | 2016-04-22 | 2016-07-27 | 中山市金艺金属制品有限公司 | Stepless regulation gas valve |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20091118 |