CN204512599U - The micro-fluidic solenoid valve of threeway - Google Patents
The micro-fluidic solenoid valve of threeway Download PDFInfo
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- CN204512599U CN204512599U CN201520037984.0U CN201520037984U CN204512599U CN 204512599 U CN204512599 U CN 204512599U CN 201520037984 U CN201520037984 U CN 201520037984U CN 204512599 U CN204512599 U CN 204512599U
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Abstract
The utility model provides the micro-fluidic solenoid valve of a kind of threeway, it is characterized in that: electromagnetic valve body is provided with a micro electric magnet, a miniature electric rotating machine, and a bipass.Electric rotating machine clockwise or can be rotated counterclockwise bipass, there is the stroke of a H length on the top of bipass, electromagnetic valve body is stretched out in the lower end of bipass, termination, the bottom side opening shut have one circular, diameter is the round opening of Φ 100 μm ~ Φ 500 μm.It is simple that the utility model has use, convenient, can directly be connected with chip controls hole arbitrarily; Be convenient to safeguard, not easily break down, working efficiency is high.
Description
Technical field
The utility model relates to a kind of new microfluidic three-way magnetic valve and its using method, from use, is the micro-fluidic solenoid valve of threeway that a kind of micro-fluidic chip uses.
Background technique
At present, along with the develop rapidly of microfluidic chip technology, to the switch control rule of microfluidic channel, be more and more concerned.So the recently research of intelligent, the high automation of the height that controls microfluidic channel of people and production, also come more.But it is many that adjoint current most of micro-fluidic chip is also just applied in experimental research, therefore, the switch control rule of high intelligence, high automation, as controls such as air valves, is not suitable for flexible and changeable innovative experiment design and concrete experiment demand.In addition, the high intelligence adopted, the control switch of high automation, one is need experimentally to change controling parameters and software program, and two is that the other buying of needs and maintenance cost are higher, experiment user cost is relatively high, adds the popularization cost of the experimental research of micro-fluidic chip.
Therefore, a kind of control switch of micro passage of simpler, professional micro-fluidic chip is needed, in experimental research.
Summary of the invention
The technical solution of the utility model is: the micro-fluidic solenoid valve of a kind of threeway, it is primarily of electromagnetic valve body, the bipass composition of spool, it is characterized in that: electromagnetic valve body is a hollow cylinder, its center up/down perforation forms a solenoid valve inner chamber, the top of solenoid valve inner chamber is provided with the electromagnet of a miniature coils composition, and electromagnet center is wrapped in solenoid valve externally connected pipe, seals up solenoid valve externally connected pipe with this.It is long that electromagnetic valve body 10 ~ 20mm is stretched out in solenoid valve externally connected pipe upper end, and lower end is concordant with electromagnet, connects the path of remaining middle and lower part solenoid valve inner chamber and electromagnetic valve body outside atmosphere.This design is convenient to solenoid valve externally connected pipe and is connected with exterior line, while lower end concordant with electromagnet be convenient to seal process.That the wall of middle and lower part solenoid valve inner chamber is provided with sliding rotation, a cylindric solenoid valve inner chamber circle, these parts are the keys driving bipass to horizontally rotate.
The inside of electromagnetic valve body removes outside solenoid valve inner chamber and the space shared by electromagnet, a miniature electric rotating machine is installed, electric rotating machine can clockwise or be rotated counterclockwise, and electric rotating machine controls horizontally rotating of solenoid valve inner chamber circle on the wall of solenoid valve inner chamber middle and lower part by gear transmission.Because rotate and do not need much angles, so the control gear of electrical motor gearshift and rotation angle is best, save the time controling of circuit, and a difficult problem for the calibration of circuit time control.Gear controls, and angle of swing might as well adjustment and calibration.What electric rotating machine was clockwise or counterclockwise starts once at every turn, just can horizontally rotate 90 ° or anticlockwise horizontal half-twist clockwise with the inner chamber circle tongue on moving electromagnetic valve inner chamber circle.That is, electric rotating function allows the once clockwise or counterclockwise transmission 90 ° of inner chamber circle tongue.Such as: rotate forward motor and start 2 times, inner chamber circle tongue will rotate clockwise 180 °, rotate forward motor and will start 4 times, rotate clockwise 360 °, and inner chamber circle tongue drives the rotating 360 degrees of bipass and rotates back into original position.Same reverse-rotatable motor starts 2 times, and inner chamber circle tongue will rotate counterclockwise 180 °, and reverse-rotatable motor starts 4 times, rotate counterclockwise 360 °, and inner chamber circle tongue drives the rotating 360 degrees of bipass and rotates back into original position.Electric rotating machine forward starts once, oppositely starts once again, and inner chamber circle tongue drives bipass to turn clockwise 90 ° and is rotated counterclockwise again 90 °, rotates back into original position.
At middle and lower part solenoid valve inner chamber, the bipass that termination, a bottom is shut is installed, there is a H length top distance solenoid valve externally connected pipe of bipass and the lower end surface of electromagnet, in the solenoid valve inner chamber of H length, be provided with the elastic device that flexible stroke is H length.This is the parts of spool, the bipass of spool can be rotated and can straight line motion.The upper end of elastic device is fixed on the lower end surface of electromagnet, and the lower end of elastic device heads on the ferromagnetism ears or side handles of a utensil at bipass top.Design on the ferromagnetism ears or side handles of a utensil by stroke limit card, can be blocked the ferromagnetism ears or side handles of a utensil and completes spacing simply, strengthens again electromagnetism magnetic action power simultaneously, ensure that the magnetic attracting power of straight line motion.
The top of bipass is processed with groove and coordinates with inner chamber circle tongue.Ensure that bipass can rotate with the rotation of inner chamber circle tongue.Electromagnetic valve body is stretched out in the lower end of bipass, termination, the bottom side opening shut have one circular, diameter is the round opening of Φ 100 μm ~ Φ 500 μm.H length is between 100 μm ~ 500 μm, equal one by one with the numerical value of circle opening diameter Φ 100 μm ~ Φ 500 μm, Corresponding matching.Such as: when H length=100 μm, opening diameter=Φ 100 μm is justified; During H length=200 μm, circle opening diameter=Φ 200 μm; When H length=300 μm, circle opening diameter=Φ 300 μm; During H length=400 μm, circle opening diameter=Φ 400 μm; During H length=500 μm, circle opening diameter=Φ 500 μm; According to the diameter of H length with circle opening, make the micro-fluidic three-way magnetic valve of different size.Bipass (9) external diameter 1mm, internal diameter 0.75mm.Adopt unified standard capillary, be conducive to batch production and reduce costs.
In technique scheme, described electromagnet and the airtight stickup of solenoid valve internal chamber wall, solenoid valve externally connected pipe and the airtight stickup of electromagnetic valve body inwall.The solenoid valve inner chamber bottom of described electromagnetic valve body is provided with the seal ring of closed bipass outer side wall; Ensure the airtight airtight of electromagnetic valve body.
The groove direction that the opening direction of round opening and the top of bipass of termination, described bipass bottom process is mutual in 90 ° vertical.Stretching out in the middle part of the bipass of electromagnetic valve body, just direction signs are being marked with to the side outer wall of the groove that the top of bipass processes, be namely identified at the opening direction place in 90 ° with circle opening.This purpose of design is easy to use, and simply, the switch in direction is clear and definite.The bottom of the termination of shutting in bipass bottom is processed with buffering flexible seal, designs like this, both ensure that sealing, protects bipass and micro passage.
In technique scheme, described solenoid valve inner chamber circle is processed with the stroke limit card of a bipass, when bipass is under the action of the elastic means to down stroke to distance solenoid valve externally connected pipe and the lower end surface H length of electromagnet, stroke limit card will block the ferromagnetism ears or side handles of a utensil at bipass top, and what ensure bipass is fixed on H length to down stroke.
The utility model technical characterstic is easy to make, uses simple.
Compared with controlling with existing micro-fluidic path, the utility model has following beneficial effect: (1) uses simple, convenient, can directly be connected with chip controls hole arbitrarily; (2) be convenient to safeguard, not easily break down, working efficiency is high; (3) simply easy to make, user cost is cheap, cost-saving.
Accompanying drawing explanation
Fig. 1 is the cross-sectional schematic of analysing and observe and using on chip body of the present utility model.
Fig. 2 is the overlooking of bipass of the present utility model, mainly look, elevational schematic view.
In figure: 1. electromagnetic valve body; 2. electric rotating machine; 3. electromagnet; 4. solenoid valve externally connected pipe; 5. solenoid valve inner chamber; 6. inner chamber circle tongue; 7. elastic device; 8. seal ring; 9. bipass; 10. direction signs; 11. micro-fluidic chips; 12. micro passages control mouth; 13. micro passages; 14. buffering flexible seal; 15. circle openings; 16. bipass worm's eye views; 17. bipass plan views; The 18. ferromagnetism ears or side handles of a utensil; 19. grooves.
Embodiment
Further the utility model is illustrated below in conjunction with drawings and Examples.
Embodiment one
Referring to figs. 1 through the shape and structure of Fig. 2, the micro-fluidic solenoid valve of a kind of threeway, it is 20mm that electromagnetic valve body 1 length is stretched out in solenoid valve externally connected pipe 4 upper end, and bipass 9 is Φ 500 μm at round opening 15 diameter of termination, the bottom side opening shut, H length=500 μm.
Use step is as follows:
One logical air.Keep electromagnet 3 power-off, which bar micro passage 13 of micro-fluidic chip 11 is needed to be communicated with outside, the electric rotating machine just micro passage of this micro passage 13 being controlled mouth 12 is open-minded, the arrow of direction signs 10 is faced toward the sample introduction direction of micro passage 13 towards instruction circle opening 15, the passage in sample introduction direction, micro passage 13 is communicated with outside atmosphere by bipass 9, solenoid valve inner chamber 5, solenoid valve externally connected pipe 4.
Two-way air.Keep electromagnet 3 power-off, open electric rotating machine 2, by the arrow of direction signs 10 towards instruction circle opening 15 facing to micro passage 13 go out sample prescription to go out to, micro passage 13 sample prescription to passage communicated with outside atmosphere by bipass 9, solenoid valve inner chamber 5, solenoid valve externally connected pipe 4.
Threeway access way.Open electromagnet 3 power supply, the magnetic force in electromagnet generation magnetic field overcomes the elastic force of elastic device 7, and the electromagnet 3 adhesive ferromagnetism ears or side handles of a utensil 18, the length of bipass 9 upward stroke H=500 μm, is lifted away from micro passage 13 by the bipass 9 of pressure.Now, bipass 9 rises up into micro passage and controls in mouth 12 from micro passage 13, owing to shutting bottom bipass 9, so time, sample introduction direction, micro passage 13 and go out sample prescription to passage through.
Close threeway.Close electromagnet 3 power supply, open electric rotating machine 2 by the arrow of direction signs 10 towards with the turnover sample prescription of micro passage 13 to vertical, show that circle opening 15 is vertical with the circulating direction of micro passage 13, circle opening 15 is controlled the sidewall shutoff of mouth 12 by micro passage, now, the micro passage 13 of micro-fluidic chip 11 sample introduction direction with go out sample prescription to passage closed disconnection by bipass 9.
Embodiment two
Referring to figs. 1 through the shape and structure of Fig. 2, the micro-fluidic solenoid valve of a kind of threeway, it is 10mm that electromagnetic valve body 1 length is stretched out in solenoid valve externally connected pipe 4 upper end, and bipass 9 is at the round opening 15 of termination, the bottom side opening shut, and diameter is Φ 100 μm, H length=100 μm.
Embodiment three
Referring to figs. 1 through the shape and structure of Fig. 2, the micro-fluidic solenoid valve of a kind of threeway, it is 15mm that electromagnetic valve body 1 length is stretched out in solenoid valve externally connected pipe 4 upper end, and bipass 9 is Φ 350 μm at round opening 15 diameter of termination, the bottom side opening shut, H length=350 μm.
During operation, step is as embodiment one.
Claims (3)
1. the micro-fluidic solenoid valve of threeway, it is primarily of electromagnetic valve body (1), bipass (7) composition of spool, it is characterized in that: electromagnetic valve body (1) is a hollow cylinder, its center up/down perforation forms a solenoid valve inner chamber (5), the top of solenoid valve inner chamber (5) is provided with the electromagnet (3) of a miniature coils composition, and electromagnet (3) center is wrapped in solenoid valve externally connected pipe (4); It is long that electromagnetic valve body (1) 10 ~ 20mm is stretched out in solenoid valve externally connected pipe (4) upper end, and lower end is concordant with electromagnet (3), connects the path of remaining middle and lower part solenoid valve inner chamber (5) and electromagnetic valve body (1) outside atmosphere; That the wall of middle and lower part solenoid valve inner chamber (5) is provided with sliding rotation, a cylindric solenoid valve inner chamber circle; The inside of electromagnetic valve body (1) removes outside solenoid valve inner chamber (5) and the space shared by electromagnet (3), a miniature electric rotating machine (2) is installed, electric rotating machine (2) can clockwise or be rotated counterclockwise, and electric rotating machine (2) controls horizontally rotating of solenoid valve inner chamber circle on the wall of solenoid valve inner chamber (5) middle and lower part by gear transmission; What electric rotating machine (2) was clockwise or counterclockwise starts once at every turn, just can horizontally rotate 90 ° or anticlockwise horizontal half-twist clockwise with the inner chamber circle tongue (6) on moving electromagnetic valve inner chamber circle; In middle and lower part solenoid valve inner chamber (5), the bipass (9) shut termination, a bottom is installed, top distance solenoid valve externally connected pipe (4) of bipass (9) and the lower end plane of electromagnet (3) have a H length, are provided with the elastic device (7) that flexible stroke is H length in the solenoid valve inner chamber (5) of H length; The upper end of elastic device (7) is fixed on the lower end plane of electromagnet (3), and the lower end of elastic device (7) heads on the ferromagnetism ears or side handles of a utensil (18) at the top of bipass (9); The top of bipass (9) is processed with groove (19) and matches with inner chamber circle tongue (6); Electromagnetic valve body (1) is stretched out in the lower end of bipass (9), termination, the bottom side opening shut have one circular, diameter is the round opening (15) of Φ 100 μm ~ Φ 500 μm.
2. the micro-fluidic solenoid valve of threeway according to claim 1, is characterized in that: described electromagnet (3) and the airtight stickup of solenoid valve inner chamber (5) wall, solenoid valve externally connected pipe (4) and the airtight stickup of electromagnetic valve body (1) inwall; Solenoid valve inner chamber (5) bottom of described electromagnetic valve body (1) is provided with the seal ring (8) of airtight bipass (9) outer side wall; Groove (19) direction that opening direction and the top of bipass (9) of the round opening (15) of described bipass (9) termination, bottom process is mutual in 90 ° vertical; At bipass (9) middle part of stretching out electromagnetic valve body (1), just direction signs (10) are marked with to the outer wall of groove (19) side that the top of bipass (9) processes; The bottom of the termination of shutting in bipass (9) bottom is processed with buffering flexible seal (14).
3. the micro-fluidic solenoid valve of threeway according to claim 1, is characterized in that: the stroke limit card described solenoid valve inner chamber circle being processed with a bipass (9), and what ensure bipass (9) is fixed on H length to down stroke; H length is between 100 μm ~ 500 μm, equal one by one with the numerical value of circle opening (15) diameter of phi 100 μm ~ Φ 500 μm, Corresponding matching; Bipass (9) external diameter 1mm, internal diameter 0.75mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520037984.0U CN204512599U (en) | 2015-01-20 | 2015-01-20 | The micro-fluidic solenoid valve of threeway |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520037984.0U CN204512599U (en) | 2015-01-20 | 2015-01-20 | The micro-fluidic solenoid valve of threeway |
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| CN204512599U true CN204512599U (en) | 2015-07-29 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565501A (en) * | 2015-01-20 | 2015-04-29 | 重庆科技学院 | Microfluidic three-way solenoid valve and application method thereof |
| WO2018112786A1 (en) * | 2016-12-21 | 2018-06-28 | 无锡源清天木生物科技有限公司 | Liquid flow control device and micro-flow control method for micro-flow control |
| CN109058582A (en) * | 2018-09-07 | 2018-12-21 | 深圳市刚竹医疗科技有限公司 | Valve gear |
| CN111514948A (en) * | 2020-04-27 | 2020-08-11 | 京东方科技集团股份有限公司 | Micro-fluidic chip and detection system |
-
2015
- 2015-01-20 CN CN201520037984.0U patent/CN204512599U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565501A (en) * | 2015-01-20 | 2015-04-29 | 重庆科技学院 | Microfluidic three-way solenoid valve and application method thereof |
| WO2018112786A1 (en) * | 2016-12-21 | 2018-06-28 | 无锡源清天木生物科技有限公司 | Liquid flow control device and micro-flow control method for micro-flow control |
| CN109058582A (en) * | 2018-09-07 | 2018-12-21 | 深圳市刚竹医疗科技有限公司 | Valve gear |
| CN111514948A (en) * | 2020-04-27 | 2020-08-11 | 京东方科技集团股份有限公司 | Micro-fluidic chip and detection system |
| CN111514948B (en) * | 2020-04-27 | 2022-02-22 | 京东方科技集团股份有限公司 | Micro-fluidic chip and detection system |
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