CN107524584A - New more oscillator piezoelectric pumps - Google Patents
New more oscillator piezoelectric pumps Download PDFInfo
- Publication number
- CN107524584A CN107524584A CN201610456240.1A CN201610456240A CN107524584A CN 107524584 A CN107524584 A CN 107524584A CN 201610456240 A CN201610456240 A CN 201610456240A CN 107524584 A CN107524584 A CN 107524584A
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- CN
- China
- Prior art keywords
- oscillator
- piezoelectric
- check valve
- new
- valve
- 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.)
- Pending
Links
- 239000012530 fluid Substances 0.000 claims abstract description 22
- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims abstract description 5
- 230000000694 effects Effects 0.000 claims abstract description 3
- 238000002834 transmittance Methods 0.000 claims abstract description 3
- 210000004894 snout Anatomy 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004870 electrical engineering Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 210000000214 mouth Anatomy 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002572 peristaltic effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
- F04B43/04—Pumps having electric drive
- F04B43/043—Micropumps
- F04B43/046—Micropumps with piezoelectric drive
Abstract
New more oscillator piezoelectric pumps, are made up of butterfly plate, torque spring, valve rod and valve body.Check valve is directly pasted on oscillator, the deformation of oscillator is acted directly on check valve, reduces transmission link；In order to reduce loss of the mechanical energy in transmittance process, mechanical energy caused by the upper and lower vibration of piezoelectric vibrator is acted directly on check valve；In order that higher-pressure region of the fluid out of pump chamber is flowed through, the ability to work of piezoelectric pump is not fully exerted, and unidirectional stop valve is pasted at the center of piezoelectric vibrator；Using asynchronous driving, under alternate electrical signal effect, change the volume of each vibration cavity, with this so that fluid forms the flowing of orientation；Meet working environment and necessary requirement.
Description
Art
The present invention relates to a kind of new more oscillator piezoelectric pumps, especially apply in precision optical machinery.
Background technology
Pump is a kind of trandfer fluid or fluid is increased stressed equipment.Micropump can be according to operation principle, driving principle
And pumped (conveying) medium is classified.It can be divided into positive displacement pump, dynamical type pump and other types pump by operation principle；Can by driving principle
Pump is moved to be divided into peristaltic pump and film；It can be divided into gas pump and liquid pump by pumped (conveying) medium.Currently, it is with the development of science and technology micro-
The application of pump is increasingly wider, species is more and more.Wherein, piezoelectric pump is one kind that medium is driven using inverse piezoelectric effect
Fluid pump, it is one of most representational new Micropump.Piezoelectric pump may make up by one or several piezoelectric vibrators with check valve,
And by the integrated of multiple piezoelectric vibrators and cavity or can be superimposed further raising output pressure and flow, thus simple in construction, body
The small, good reliability of product.
The research of piezoelectric pump can trace back to year, and Japanese scholars cup rugged wise two proposes the structure of piezoelectric pump earliest.At present,
The research work to piezoelectric pump is concentrated mainly on raising performance parameter both at home and abroad（Output pressure, output flow, output accuracy）With
Ensure to reduce power consumption etc. under the premise of output performance.The application field of piezoelectric pump is very extensive, is set in Aero-Space, medical science
Apply, fuel cell and Miniature precision mechanical field etc. have good application prospect.In recent years, the research of piezoelectric pump achieved
Significant development, is not only greatly improved on output performance, and also increasingly extensive in terms of application and pumped (conveying) medium,
Conveying gas, high viscosity fluid are developed into from conveying low viscosity fluid；Valveless piezoelectric pump etc. is developed into from there is valve piezoelectric pump.Piezoelectricity
Pump can be applied in fields such as microcomputer electrical engineering, biochemistry, fuel cells.
The content of the invention
In order to overcome existing piezoelectric pump transmission link excessively complicated, it is difficult to meet working environment and it is necessary it is some will
Ask, the present invention provides a kind of new more oscillator piezoelectric pumps, and fast new more oscillator piezoelectric pumps are reduced caused by the course of work
Energy loss, at the same to a greater extent on played itself ability to work of piezoelectric pump.
The technical solution adopted for the present invention to solve the technical problems is：Check valve is affixed directly on oscillator, makes to shake
The deformation of son is acted directly on check valve, reduces transmission link；The mechanical energy as caused by piezoelectric vibrator upper and lower vibration is direct
Act on check valve, reduce loss of the mechanical energy in transmittance process；Due to pasting unidirectional cut at the center of piezoelectric vibrator
Only valve, higher-pressure region of the fluid out of pump chamber is caused to flow through, the ability to work of piezoelectric pump is fully played.
During asynchronous driving, i.e., when the operating phase difference of two piezoelectric vibrators, apply the alternating voltage of opposite in phase；It is synchronous
During driving, i.e., when the operating phase difference of two piezoelectric vibrators is, apply phase identical alternating voltage；Make in alternate electrical signal
Under, change the volume of each vibration cavity, with this so that fluid forms the flowing of orientation.
The invention has the advantages that new more oscillator piezoelectric pumps have the characteristics of saving energy consumption, work is especially reduced
During frictional dissipation；Simplify the transmission link of piezoelectric pump so that reaction and control are more accurate, sensitive；Ensureing
On the premise of not increasing energy consumption, the ability to work of piezoelectric pump in itself has been played to the full extent；Pasted at the center of piezoelectric vibrator
Unidirectional stop valve, higher-pressure region of the fluid out of pump chamber is caused to flow through, the ability to work of piezoelectric pump is fully played.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the basic structure schematic diagram of double oscillator Piezoelectric Driving axial-flow type piezoelectric pumps.
Fundamental diagram a when Fig. 2 is double-oscillator piezoelectric pump asynchronous driving.
Fundamental diagram b when Fig. 3 is double-oscillator piezoelectric pump asynchronous driving.
Fig. 4 is fundamental diagram a when double-oscillator piezoelectric pump synchronously drives.
Fig. 5 is fundamental diagram b when double-oscillator piezoelectric pump synchronously drives.
1. inlet tube in figure, 2. outlet plenums, 3. screws, 4. upper end covers, 5. second piezoelectric vibrators, 6. intermediate end covers, under 7.
End cap, 8. nuts, 9. snout cavities, 10. first piezoelectric vibrators, the check valve on 11. first oscillators, 12. inlet tubes, 13. sealings
Enclose, 14. nuts, 15. screws, 16. middle chambers, the check valve on 17 second oscillators.
Embodiment
Preferably, the basic structure schematic diagram of double-oscillator piezoelectric pump is as shown in figure 1, it is by inlet tube 1, upper end cover 4, pressure
Electric tachometer indicator 5 and 10, check valve 11 and 17, intermediate end cover 6, bottom end cover 7, sealing ring 13, screw 15, nut composition 14.
Preferably, during asynchronous driving, i.e., when the operating phase difference of two piezoelectric vibrators, the alternation electricity of opposite in phase is applied
Pressure；During synchronous driving, i.e., when the operating phase difference of two piezoelectric vibrators is, apply phase identical alternating voltage.
Preferably, operation principle during the asynchronous driving of double-oscillator piezoelectric pump is as shown in Fig. 2 during suction, in alternate electrical signal
In the presence of, first piezoelectric vibrator 10 vibrates upwards, and second piezoelectric vibrator 5 vibrates downwards, unidirectional on first oscillator
Valve 11 is closed, and the check valve 17 on second oscillator is opened in the presence of inertia force, simultaneously because the up-down vibration of oscillator makes
Volume in cavity changes, and the volume of snout cavity 9 increase, middle chamber volume reduces, the increase of the volume of outlet plenum 2, so that
The pressure of middle chamber rises, and the pressure of outlet plenum 2 declines, work of the check valve 17 on second oscillator in upper and lower both sides pressure difference
With lower opening, fluid is entered in outlet plenum, simultaneously because the pressure in snout cavity 9 reduces, in the presence of pressure difference, in air
Fluid enter in snout cavity 9；During scheduling, in the presence of alternate electrical signal, first oscillator 10 vibrates downwards, while the
Two oscillators 5 vibrate upwards, and the check valve 17 on second oscillator produces corresponding closing motion, unidirectional on first oscillator
Valve 11 is opened in the presence of inertia force, simultaneously because the up-down vibration of oscillator makes the volume in cavity change, snout cavity 9
Volume reduce, the volume of middle chamber increase, the volume of outlet plenum 2 reduces, middle so that the pressure of snout cavity 9 rises
The pressure of chamber declines, and the pressure of outlet plenum 2 rises, and the check valve 17 on first piezoelectric vibrator is in the presence of upper and lower both sides pressure difference
Open, fluid is flowed into middle chamber, simultaneously as the pressure rise of outlet plenum, fluid flow out from outlet plenum.Repeat with
Upper process, fluid can form the flowing of orientation.
Preferably, operation principle when double-oscillator piezoelectric pump synchronously drives is as shown in figure 3, during suction, in alternate electrical signal
In the presence of, vibration, check valve 17,11 are opened in the presence of inertia force downwards simultaneously for first oscillator 10 and second oscillator 5
Open, simultaneously because the up-down vibration of oscillator makes the volume in cavity change, the volume of snout cavity 9 reduces, the body of outlet plenum 2
Product increase, so that the pressure of snout cavity rises, the pressure of outlet plenum declines, and the check valve 17 on first piezoelectric vibrator is upper
Opened in the presence of the pressure difference of lower both sides, the check valve on second piezoelectric vibrator in the presence of 11 inertia force, open, and enters by valve block
Fluid in oral cavity 9 is entered in middle chamber, while the fluid in middle chamber is flowed into outlet plenum 2；During scheduling, handing over
In the presence of varying electrical signals, vibration upwards, check valve 5,10 close simultaneously for first piezoelectric vibrator 17 and second piezoelectric vibrator 11
Close, fluid flows out from outlet plenum 2.Extraneous fluid is entered in snout cavity 9 simultaneously.Above procedure is repeated, fluid being capable of shape
Into the flowing of orientation.
Claims (5)
1. new more oscillator piezoelectric pumps, are made up of butterfly plate, torque spring, valve rod and valve body, it is characterized in that：Check valve is directly pasted
On oscillator；Mechanical energy caused by the upper and lower vibration of piezoelectric vibrator is acted directly on check valve；Paste single in the center of piezoelectric vibrator
To stop valve；Using asynchronous driving.
2. new more oscillator piezoelectric pumps according to claim 1, it is characterized in that：In order that the deformation of oscillator acts directly on
On check valve, transmission link is reduced, check valve is affixed directly on oscillator.
3. new more oscillator piezoelectric pumps according to claim 1, it is characterized in that：In order to reduce mechanical energy in transmittance process
Loss, mechanical energy caused by the upper and lower vibration of piezoelectric vibrator acted directly on check valve.
4. new more oscillator piezoelectric pumps according to claim 1, it is characterized in that：In order that higher-pressure region of the fluid out of pump chamber
Flow through, the ability to work of piezoelectric pump is not fully exerted, and unidirectional stop valve is pasted at the center of piezoelectric vibrator.
5. new more oscillator piezoelectric pumps according to claim 1, it is characterized in that：Using asynchronous driving, in alternate electrical signal
Under effect, change the volume of each vibration cavity, with this so that fluid forms the flowing of orientation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610456240.1A CN107524584A (en) | 2016-06-22 | 2016-06-22 | New more oscillator piezoelectric pumps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610456240.1A CN107524584A (en) | 2016-06-22 | 2016-06-22 | New more oscillator piezoelectric pumps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107524584A true CN107524584A (en) | 2017-12-29 |
Family
ID=60735009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610456240.1A Pending CN107524584A (en) | 2016-06-22 | 2016-06-22 | New more oscillator piezoelectric pumps |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107524584A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915347A (en) * | 2019-03-03 | 2019-06-21 | 浙江师范大学 | A kind of tower miniature piezoelectric gas compressor |
| CN110364472A (en) * | 2019-07-22 | 2019-10-22 | 燕山大学 | A kind of micro- vibration actuating vacuum sucking pen |
| CN113137363A (en) * | 2021-04-26 | 2021-07-20 | 长春工业大学 | Valveless double-cavity resonance piezoelectric drive type insulin pump |
| CN113586404A (en) * | 2021-06-28 | 2021-11-02 | 宁波工程学院 | Four-chamber booster type piezoelectric pump |
| CN115355161A (en) * | 2022-10-21 | 2022-11-18 | 成都汇通西电电子有限公司 | Multi-cavity compression constant-pressure output jet piezoelectric fan |
| TWI827957B (en) * | 2021-07-23 | 2024-01-01 | 研能科技股份有限公司 | Gas transportation device |
-
2016
- 2016-06-22 CN CN201610456240.1A patent/CN107524584A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915347A (en) * | 2019-03-03 | 2019-06-21 | 浙江师范大学 | A kind of tower miniature piezoelectric gas compressor |
| CN109915347B (en) * | 2019-03-03 | 2024-03-15 | 浙江师范大学 | Tower type miniature piezoelectric gas compressor |
| CN110364472A (en) * | 2019-07-22 | 2019-10-22 | 燕山大学 | A kind of micro- vibration actuating vacuum sucking pen |
| CN113137363A (en) * | 2021-04-26 | 2021-07-20 | 长春工业大学 | Valveless double-cavity resonance piezoelectric drive type insulin pump |
| CN113137363B (en) * | 2021-04-26 | 2022-03-29 | 长春工业大学 | Valveless double-cavity resonance piezoelectric drive type insulin pump |
| CN113586404A (en) * | 2021-06-28 | 2021-11-02 | 宁波工程学院 | Four-chamber booster type piezoelectric pump |
| TWI827957B (en) * | 2021-07-23 | 2024-01-01 | 研能科技股份有限公司 | Gas transportation device |
| CN115355161A (en) * | 2022-10-21 | 2022-11-18 | 成都汇通西电电子有限公司 | Multi-cavity compression constant-pressure output jet piezoelectric fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171229 |
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| WD01 | Invention patent application deemed withdrawn after publication |