CN107120474B - One kind being based on optical drive liquid controlled reversing microvalve device and its application method - Google Patents
One kind being based on optical drive liquid controlled reversing microvalve device and its application method Download PDFInfo
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- CN107120474B CN107120474B CN201710204894.XA CN201710204894A CN107120474B CN 107120474 B CN107120474 B CN 107120474B CN 201710204894 A CN201710204894 A CN 201710204894A CN 107120474 B CN107120474 B CN 107120474B
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- rom drive
- drop
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- gas outlet
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K99/00—Subject matter not provided for in other groups of this subclass
- F16K99/0001—Microvalves
- F16K99/0003—Constructional types of microvalves; Details of the cutting-off member
- F16K99/0028—Valves having multiple inlets or outlets
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K99/00—Subject matter not provided for in other groups of this subclass
- F16K99/0001—Microvalves
- F16K99/0034—Operating means specially adapted for microvalves
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Mechanical Engineering (AREA)
- Micromachines (AREA)
Abstract
The invention discloses one kind to be based on optical drive liquid controlled reversing microvalve device and its application method.Body base of the present invention is provided with air inlet, body top is symmetrically provided with gas outlet I, gas outlet II, photosensitive drop I, photosensitive drop II, photosensitive drop III is located in the channel of valve body and photosensitive drop I is located at immediately below gas outlet I, photosensitive drop II is located at right above air inlet, photosensitive drop III is located at immediately below gas outlet II, it is located at the two sides of gas outlet I by the CD-ROM drive group I of same switch control, it is located at the two sides of gas outlet II by the CD-ROM drive group II of same switch control, it is located at the two sides of air inlet by the CD-ROM drive group III of same switch control, CD-ROM drive I is located at the underface of photosensitive drop I, CD-ROM drive II is located at the underface of photosensitive drop III.The present invention, which solves, controls the problems such as precision is low, dynamic response characteristic is poor low with flow efficiency in commutation process.
Description
Technical field
The present invention relates to one kind to be based on optical drive liquid controlled reversing microvalve device and its application method, belongs to precision equipment technology
Field.
Background technique
Multiple directional control valve is one of the critical component in Construction Machinery System, with the development of science and technology, wanting to reversal valve
Ask higher and higher, such as：Control mode, control precision, valve body structure and manufacture assembly cost etc..
Current main driving method mainly has electromagnetic drive and pressure-driven, and primary operational is by the big of control pressure
The features such as power of small and electromagnetism controls the switch of micro-valve, and control precision is low, dynamic response is poor, at high cost and access times
Certain damage can be caused to valve body mostly to reduce flow efficiency.
Summary of the invention
The present invention provides one kind to be based on optical drive liquid controlled reversing microvalve device and its application method, realizes micro-valve reversing work
Can, it solves and controls the problems such as precision is low, dynamic response characteristic is poor low with flow efficiency in commutation process.
The technical scheme is that：One kind be based on optical drive liquid controlled reversing microvalve device, including air inlet 1, CD-ROM drive I 2,
Photosensitive drop I 3, photosensitive drop II 4, gas outlet I 5, CD-ROM drive group I 6, CD-ROM drive group II 7, gas outlet II 8, valve body 9, photosensitive drop III
10, CD-ROM drive II 11 and CD-ROM drive group III 12；
9 bottom of valve body is provided with air inlet 1, and 9 top of valve body is symmetrically provided with gas outlet I 5, gas outlet II 8, photosensitive drop
I 3, photosensitive drop II 4, photosensitive drop III 10 are located in the channel of valve body 9 and photosensitive drop I 3 is located at I 5 underface of gas outlet, light
Quick drop II 4 is located at right above air inlet 1, photosensitive drop III 10 is located at immediately below gas outlet II 8, by the light of same switch control
Drive group I 6 is located at the two sides of gas outlet I 5, the two sides of gas outlet II 8 is located at by the CD-ROM drive group II 7 of same switch control, by same
The CD-ROM drive group III 12 of switch control is located at the two sides of air inlet 1, and CD-ROM drive I 2 is located at the underface of photosensitive drop I 3, and CD-ROM drive II 11
In the underface of photosensitive drop III 10.
The valve body 9 is made using polydimethyl siloxane material.
A kind of application method based on optical drive liquid controlled reversing microvalve device is supplied to micro-valve air inlet 1, opens CD-ROM drive group
I 6 and CD-ROM drive II 11, CD-ROM drive I 2, CD-ROM drive group II 7 and CD-ROM drive group III 12 are closed, photosensitive drop I 3 is attracted by the light source of CD-ROM drive group I 6
This gas outlet is blocked to gas outlet I 5, photosensitive drop III 10 is attracted to by the light source of CD-ROM drive II 11 and leans in 9 channel of valve body
Dipped beam drives II 11 groove, so that gas is flowed out with maximum capacity from gas outlet II 8；
Commutation：CD-ROM drive I 2 and CD-ROM drive group II 7 are opened, CD-ROM drive group I 6, CD-ROM drive II 11 and CD-ROM drive group III 12, photosensitive drop are closed
III 10, which are attracted to gas outlet II 8 by the light source of CD-ROM drive group II 7, blocks this gas outlet, and photosensitive drop I 3 is inhaled by the light source of CD-ROM drive I 2
It is introduced at the groove in 9 channel of valve body close to CD-ROM drive I 2, so that gas is flowed out with maximum capacity from gas outlet I 5.
The CD-ROM drive group III 12 of closing is opened in gas backstreaming in order to prevent, and photosensitive drop II 4 is moved at air inlet 1, will
Air inlet 1 is blocked.
The beneficial effects of the invention are as follows：
1, using multi-way reversing, the flow efficiency of system is improved.
2, by optical drive, the flexibility and energy conservation and environmental protection of system are improved.
3, it can be effectively reduced using multiple light courcess since light source scatters influence of the interference signal generated to test result, be subtracted
Small location error improves position precision, enhances dynamic response.
4, photosensitive drop is high to light source susceptibility, mentions high control precision with this so that commutation function accuracy,
It ensure that high control precision is realized in contactless driving.
5, it uses to import and export the symmetrically placed light source in central axes, can effectively guarantee that photosensitive drop movement will not be inclined
It sets, can greatly improve the control precision of micro-valve and the efficiency of gas flowing in this way.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
In figure respectively marked as：The photosensitive drop I of 1- air inlet, 2- CD-ROM drive I, 3-, the photosensitive drop II of 4-, the gas outlet 5- I, 6- light
Drive group I, 7- CD-ROM drive group II, the gas outlet 8- II, 9- valve body, the photosensitive drop III of 10-, 11- CD-ROM drive II, 12- CD-ROM drive group III.
Specific embodiment
Embodiment 1：Be based on optical drive liquid controlled reversing microvalve device as shown in Figure 1, a kind of, including air inlet 1, CD-ROM drive I 2,
Photosensitive drop I 3, photosensitive drop II 4, gas outlet I 5, CD-ROM drive group I 6, CD-ROM drive group II 7, gas outlet II 8, valve body 9, photosensitive drop III
10, CD-ROM drive II 11 and CD-ROM drive group III 12；
9 bottom of valve body is provided with air inlet 1, and 9 top of valve body is symmetrically provided with gas outlet I 5, gas outlet II 8, photosensitive drop
I 3, photosensitive drop II 4, photosensitive drop III 10 are located in the channel of valve body 9 and photosensitive drop I 3 is located at I 5 underface of gas outlet, light
Quick drop II 4 is located at right above air inlet 1, photosensitive drop III 10 is located at immediately below gas outlet II 8, by the light of same switch control
Drive group I 6 is located at the two sides of gas outlet I 5, the two sides of gas outlet II 8 is located at by the CD-ROM drive group II 7 of same switch control, by same
The CD-ROM drive group III 12 of switch control is located at the two sides of air inlet 1, and CD-ROM drive I 2 is located at the underface of photosensitive drop I 3, and CD-ROM drive II 11
In the underface of photosensitive drop III 10.
The valve body 9 is made using polydimethyl siloxane material.
A kind of application method based on optical drive liquid controlled reversing microvalve device is supplied to micro-valve air inlet 1, opens CD-ROM drive group
I 6 and CD-ROM drive II 11, CD-ROM drive I 2, CD-ROM drive group II 7 and CD-ROM drive group III 12 are closed, photosensitive drop I 3 is attracted by the light source of CD-ROM drive group I 6
This gas outlet is blocked to gas outlet I 5, photosensitive drop III 10 is attracted to by the light source of CD-ROM drive II 11 and leans in 9 channel of valve body
Dipped beam drives II 11 groove, so that gas is flowed out with maximum capacity from gas outlet II 8；
Commutation：CD-ROM drive I 2 and CD-ROM drive group II 7 are opened, CD-ROM drive group I 6, CD-ROM drive II 11 and CD-ROM drive group III 12, photosensitive drop are closed
III 10, which are attracted to gas outlet II 8 by the light source of CD-ROM drive group II 7, blocks this gas outlet, and photosensitive drop I 3 is inhaled by the light source of CD-ROM drive I 2
It is introduced at the groove in 9 channel of valve body close to CD-ROM drive I 2, so that gas is flowed out with maximum capacity from gas outlet I 5.
The CD-ROM drive group III 12 of closing is opened in gas backstreaming in order to prevent, and photosensitive drop II 4 is moved at air inlet 1, will
Air inlet 1 is blocked.
Such as：The valve gear long 50mm, wide 40mm, air inlet diameter=gas outlet diameter=D1, valve body internal passage diameter D2,
Photosensitive liquid-drop diameter d.
D1Determination：140μm；
D2Determination：320μm；
The determination of d：300μm；
Meet：D1Value be less than or equal to D2The value of the half of value, d is less than D2And it is greater than D1Twice；Work as light
It is 0 that quick drop, which is contacted with channel interior Ji Wei gap, is 5000 μm with discontiguous internal maximum distance.
The overall structure of valve is the center of entire valve with the center of circle of photosensitive drop II 4.
Light intensity L=0 ~ 30Lux used in CD-ROM drive is chosen, temperature is maintained between 20 ° ~ 25 °；
Susceptibility W=98.97% of the photosensitive drop to light；
The deformation quantity range of photosensitive drop is（15%~45%）；
Valve exit and entrance angleb：15 ~ 30 degree.
Wherein, photosensitive drop changes the susceptibility of light with the variation of temperature and light intensity, when too high or too low for temperature
Will influence photosensitive drop to the susceptibility of light, only temperature be maintained between 20 ° ~ 25 ° and light intensity should be maintained at 0 ~
Between 30Lux, the stability of photosensitive drop is in best, and photosensitive drop can just play the role of precisely being opened and closed micro-valve inlet and outlet.
Since the valve body of micro-valve is made of PDMS material, translucency is relatively good, therefore the intensity of illumination of CD-ROM drive cannot
Excessive, herein, light intensity is more than the movement travel that 30Lux then will affect other photosensitive drops.
Photosensitive drop need must deformation quantity, we select light functional polymer material as photosensitive drop herein
Material, this material can show certain deformation and movement under the participation effect of light, and stability is very high.Work as light
When driving work, photosensitive drop is mobile to valve port, and to allow photosensitive drop to make micro-valve inlet and outlet leakproofness good, photosensitive drop is needed
Occur to deform, however, deflection cannot be excessive, it is excessive, it will lead to photosensitive excessive deformation and do not have completely enclosed
Effect, so the deformation quantity selection range of the material of photosensitive drop is：（15%~45%）Only within the scope of this, ability
Guarantee that the deformation quantity of photosensitive drop can satisfy precisely opening and closing micro-valve and import and export without leaking.
Above in conjunction with attached drawing, the embodiment of the present invention is explained in detail, but the present invention is not limited to above-mentioned
Embodiment within the knowledge of a person skilled in the art can also be before not departing from present inventive concept
Put that various changes can be made.
Claims (4)
1. one kind is based on optical drive liquid controlled reversing microvalve device, including air inlet（1）, valve body（9）, gas outlet, it is characterised in that：
It further include CD-ROM drive I（2）, photosensitive drop I（3）, photosensitive drop II（4）, CD-ROM drive group I（6）, CD-ROM drive group II（7）, photosensitive drop III
（10）, CD-ROM drive II（11）With CD-ROM drive group III（12）, the gas outlet includes gas outlet I（5）, gas outlet II（8）；
The valve body（9）Bottom is provided with air inlet（1）, valve body（9）Top is symmetrically provided with gas outlet I（5）, gas outlet II（8）, light
Quick drop I（3）, photosensitive drop II（4）, photosensitive drop III（10）Positioned at valve body（9）Channel in and photosensitive drop I（3）It is located at
Gas outlet I（5）Underface, photosensitive drop II（4）Positioned at air inlet（1）Surface, photosensitive drop III（10）Positioned at gas outlet II
（8）Underface, by the CD-ROM drive group I of same switch control（6）Positioned at gas outlet I（5）Two sides, by the CD-ROM drive of same switch control
Group II（7）Positioned at gas outlet II（8）Two sides, by the CD-ROM drive group III of same switch control（12）Positioned at air inlet（1）Two sides,
CD-ROM drive I（2）Positioned at photosensitive drop I（3）Underface, CD-ROM drive II（11）Positioned at photosensitive drop III（10）Underface.
2. according to claim 1 be based on optical drive liquid controlled reversing microvalve device, it is characterised in that：The valve body（9）Make
It is made of polydimethyl siloxane material.
3. a kind of use the method described in claim 1 based on optical drive liquid controlled reversing microvalve device, it is characterised in that：
Give micro-valve air inlet（1）Gas supply opens CD-ROM drive group I（6）With CD-ROM drive II（11）, close CD-ROM drive I（2）, CD-ROM drive group II（7）With
CD-ROM drive group III（12）, photosensitive drop I（3）By CD-ROM drive group I（6）Light source be attracted to gas outlet I（5）This gas outlet is blocked, light
Quick drop III（10）By CD-ROM drive II（11）Light source be attracted to positioned at valve body（9）Close to CD-ROM drive II in channel（11）Groove,
So that gas is with maximum capacity from gas outlet II（8）Outflow；
Commutation：Open CD-ROM drive I（2）With CD-ROM drive group II（7）, close CD-ROM drive group I（6）, CD-ROM drive II（11）With CD-ROM drive group III（12）, light
Quick drop III（10）By CD-ROM drive group II（7）Light source be attracted to gas outlet II（8）This gas outlet is blocked, photosensitive drop I（3）Quilt
CD-ROM drive I（2）Light source be attracted to positioned at valve body（9）Close to CD-ROM drive I in channel（2）Groove so that gas is with maximum capacity
From gas outlet I（5）Outflow.
4. method of the use according to claim 3 based on optical drive liquid controlled reversing microvalve device, it is characterised in that：In order to
Gas backstreaming is prevented, by the CD-ROM drive group III of closing（12）It opens, photosensitive drop II（4）It is moved to air inlet（1）Place, by air inlet
（1）It blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710204894.XA CN107120474B (en) | 2017-03-31 | 2017-03-31 | One kind being based on optical drive liquid controlled reversing microvalve device and its application method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710204894.XA CN107120474B (en) | 2017-03-31 | 2017-03-31 | One kind being based on optical drive liquid controlled reversing microvalve device and its application method |
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| Publication Number | Publication Date |
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| CN107120474A CN107120474A (en) | 2017-09-01 |
| CN107120474B true CN107120474B (en) | 2018-11-27 |
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| CN201710204894.XA Active CN107120474B (en) | 2017-03-31 | 2017-03-31 | One kind being based on optical drive liquid controlled reversing microvalve device and its application method |
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| CN110645408B (en) * | 2019-11-08 | 2021-04-02 | 广州大学 | Electrowetting-driven liquid drop micro-valve liquid circulation control device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2001094823A1 (en) * | 2000-06-02 | 2001-12-13 | The Regents Of The University Of California | Controlling physical motion with electrolytically formed bubbles |
| GB2443260C (en) * | 2006-10-26 | 2017-11-29 | Cellnovo Ltd | Micro-valve |
| FR2951713B1 (en) * | 2009-10-27 | 2012-04-13 | Centre Nat Rech Scient | MICRO-SHUTTER WITH ELECTROMAGNETIC ACTUATION |
| CN103256414B (en) * | 2012-02-16 | 2015-06-03 | 同济大学 | Light-driven micro proportion valve and regulating method thereof |
| CN203036047U (en) * | 2012-12-27 | 2013-07-03 | 天津凯发阀门有限公司 | Optical driving type adjustable micro-valve structure |
| CN103062480A (en) * | 2012-12-31 | 2013-04-24 | 苏州汶颢芯片科技有限公司 | Photo-responsive micro valve based on micro-fluidic chip and production method thereof |
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