CN103879147B - A kind of printed electronic private print shower nozzle - Google Patents
A kind of printed electronic private print shower nozzle Download PDFInfo
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- CN103879147B CN103879147B CN201410093171.3A CN201410093171A CN103879147B CN 103879147 B CN103879147 B CN 103879147B CN 201410093171 A CN201410093171 A CN 201410093171A CN 103879147 B CN103879147 B CN 103879147B
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- ceramic ring
- piezoelectric ceramic
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- jet pipe
- shower nozzle
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Abstract
The invention discloses a kind of printed electronic private print shower nozzle, comprise jet pipe and containment vessel, between jet pipe and containment vessel, fix by support zone, nozzle and described jet pipe are an entirety; Main piezoelectric ceramic ring is installed on jet pipe and revises piezoelectric ceramic ring, the top electrode of described piezoelectric ceramics is connected with wire. Described wire is connected with external power supply, inputs the voltage of suitable waveform to piezoelectric ceramic ring, ensures that piezoelectric ceramic ring inverse piezoelectric effect occurs under electric field action and produces deformation, drives ink droplet to spray. The present invention adopts piezoelectric ceramic ring to replace the laminated structure in conventional piezoelectric formula shower nozzle, below jet pipe, increasing a little piezoelectric ceramic ring revises ink jet model, make the mobile more convergence laminar flow of ink, can meet printed electronic for requirements such as shower nozzle chemical stability are good, be quick on the draw.
Description
Technical field
The invention belongs to printed electronic field, be specifically related to a kind of printed electronic private print shower nozzle.
Background technology
As the rising industry of global industrial manufacturing industry, printed electronic has broad application and good cityField prospect.
Printed electronic (PE, PrintedElectronics), be utilize printing mode realize electronic circuit orA kind of technique and the technology of the manufacture of electronic device. Printed electronic is since occurring, because it can print, be suitable for modelEnclose wide, the feature such as excellent energy is subject to each side and pays close attention to and cause research boom at a low price. According to AUTHORITATIVE DATA statistics, 2015Year printed electronics applications market expectation reaches 5,200,000,000 dollars.
As the microelectronic Primary Component of printing, file printing shower nozzle (materialprintinghead) is impactOne of key factor of printing microelectronic product quality. But all research at present all concentrates on the materials such as ink and closesBecome, shower nozzle is rarely had and related to. And printed electronic is because the features such as the electric conductivity having itself require ink in sprayPenetrate in process and keep chemical property constant, realize the injection of accurate little error simultaneously. Existing shower nozzle can not be expiredThe above-mentioned requirements of foot printed electronic, does not have for the custom-designed shower nozzle of printed electronic on market yet.
For solving above-mentioned demand and technical problem, the invention provides a kind of printed electronic private print shower nozzle.
Summary of the invention
The deficiency existing for prior art, the invention provides a kind of printed electronic private print shower nozzle.
The technical solution adopted in the present invention is:
A kind of printed electronic private print shower nozzle, comprises jet pipe and containment vessel, passes through to prop up between jet pipe and containment vesselPosition, support part is fixed, and nozzle and described jet pipe are an entirety; Also comprise main piezoelectric ceramic ring and revise voltage ceramic ring,Be looped around on jet pipe, and main piezoelectric ceramic ring is all connected with external power supply by wire with correction piezoelectric ceramic ring.
Described main piezoelectric ceramic ring and correction piezoelectric ceramic ring are made up of connecting portion and piezoelectric ceramics, describedPiezoelectric ceramics by substrate, anti-delamination, bottom electrode, piezoceramic material, top electrode from bottom to top layer by layer bonding andBecome, top electrode is connected with wire.
As preferably, the connecting portion of described piezoelectric ceramic ring is made by epoxy adhesive.
As preferably, the substrate of piezoelectric ceramics is by bottom silicon (Si) and upper strata silica (SiO2)) composition.
The anti-delamination of described piezoelectric ceramics adopts the metal such as thallium (Ti) or gold (Au) to be made.
The bottom electrode of described piezoelectric ceramics adopts platinum (Pt) to be made.
The piezoceramic material of described piezoelectric ceramics adopts lead zirconate titanate (PZT) to be made, wherein zirconium titaniumAtomic ratio 0.52:0.48, piezoceramic material used is Pb (Zr0.52Ti0.48)O3。
The top electrode of described piezoelectric ceramics adopts platinum (Pt) to be made, and passes through the mode of welding with wireConnect, while ensureing external power supply, voltage can be sent on piezoelectric ceramics.
Described wire is connected with external power supply, input 220V alternating current, the waveform that produces as shown in Figure 1Voltage give main piezoelectric ceramic ring, ensure main piezoelectric ceramic ring under electric field action, occur inverse piezoelectric effect and produceDeformation, drives ink droplet to spray.
Described wire is connected with external power supply, input 220V alternating current, the waveform that produces as shown in Figure 1Voltage give revise piezoelectric ceramic ring, ensure revise piezoelectric ceramic ring under electric field action, there is inverse piezoelectric effect alsoProduce deformation, the jeting effect of ink droplet is revised, ink droplet is sprayed more concentrated, error is less.
As preferably, described containment vessel is made by copper (Cu), and protection jet pipe and nozzle do not suffer damage.
As preferably, described jet pipe and nozzle are made by glass or polytetrafluoroethylene (PTFE).
As preferably, described support zone is made by epoxy resin.
The present invention proposes a kind of shower nozzle that is exclusively used in printed electronic in a creative way, adopts piezoelectric ceramic ring to replace traditionLaminated structure in piezoelectric type shower nozzle increases a little piezoelectric ceramic ring to ink jet model below jet pipeRevise, make the mobile more convergence laminar flow of ink, reduce the error that ink droplet sprays, ensure course of injection ink insideChemical property be not changed, can meet printed electronic good, applied widely for shower nozzle chemical stability,The requirements such as the kind of can undertaking the printing of is many, be quick on the draw.
Brief description of the drawings
Fig. 1: the voltage waveform view that the present invention applies.
Fig. 2: printed electronic private print nozzle structure schematic diagram of the present invention, Fig. 2, in 3,4,1-containment vessel, 2-Support zone, 3-jet pipe, 4-nozzle, the main piezoelectric ceramic ring of 5-, 6-revises piezoelectric ceramic ring, 7-wire, 8-Connecting portion, 9-piezoelectric ceramics, 10-silicon, 11-silica, the anti-delamination of 12-, 13-bottom electrode, 14-piezoelectricityCeramic material, 15-top electrode, 16-external power supply.
Fig. 3: in printed electronic private print shower nozzle of the present invention, main piezoelectric ceramic ring and correction piezoelectric ceramics ring structure showIntention.
Fig. 4: the piezoelectric ceramics part-structure schematic diagram in main piezoelectric ceramic ring of the present invention and correction piezoelectric ceramic ring.
Fig. 5: printed electronic private print shower nozzle ink-jet schematic diagram of the present invention.
Detailed description of the invention
Below with reference to accompanying drawing, the present invention is further elaborated.
As shown in Figure 2, a kind of printed electronic private print shower nozzle, comprises jet pipe 3 and containment vessel 1, jet pipe3 and containment vessel 1 between fixing by support zone 2, nozzle 4 and described jet pipe 3 are an entirety; Also compriseMain piezoelectric ceramic ring 5 and correction voltage ceramic ring 6, be looped around on jet pipe, and main piezoelectric ceramic ring 5 and correctionPiezoelectric ceramic ring 6 is all connected with external power supply 16 by wire 7.
As shown in Figure 3, described main piezoelectric ceramic ring 5 and correction piezoelectric ceramic ring 6 are by connecting portion 8 HesPiezoelectric ceramics 9 forms.
As shown in Figure 4, described piezoelectric ceramics 9 is by substrate (silicon 10 and silica 1 1), anti-delamination12, bottom electrode 13, piezoceramic material 14, top electrode 15 bond and form layer by layer from bottom to top, wherein power onThe utmost point 15 is connected (being that wire 7 is welded on the top electrode 15 on piezoelectric ceramics 9) with wire 7.
The connecting portion 8 of piezoelectric ceramic ring (5 and 6) is made by epoxy adhesive.
The substrate of piezoelectric ceramics 9 parts of main piezoelectric ceramic ring 5, correction piezoelectric ceramic ring 6 is by bottom silicon 10 andUpper strata silica 11 forms; Anti-delamination 12 adopts the metal such as thallium (Ti) or gold (Au) to be made; UnderElectrode 13 adopts platinum (Pt) to be made; Piezoceramic material 14 adopt lead zirconate titanate (PZT) make andBecome, wherein zirconium titanium ratio 0.52:0.48, piezoceramic material used is Pb (Zr0.52Ti0.48)O3; Piezoelectric ceramics 9Top electrode 15 adopt platinum (Pt) to be made, and be connected with soldered wire 7, ensure external power supplyTime voltage can be sent on piezoelectric ceramics.
Wire 7 is connected with external power supply 16, inputs the voltage of suitable waveform to main piezoelectric ceramic ring 5, ensures mainThere is inverse piezoelectric effect and produce deformation in piezoelectric ceramic ring 5, drive ink droplet to spray under electric field action.
Another wire 7 is connected with another external power supply 16, inputs the voltage of suitable waveform to revising piezoelectricityCeramic ring 6, ensures to revise piezoelectric ceramic ring 6 and inverse piezoelectric effect occurs under electric field action and produce deformation, rightThe jeting effect of ink droplet is revised, and ink droplet is sprayed more concentrated, and error is less.
Containment vessel 1 is made by copper (Cu), and protection jet pipe 3 and nozzle 4 do not suffer damage.
Jet pipe 3 and nozzle 4 are made by glass or polytetrafluoroethylene (PTFE).
Support zone 2 is made by epoxy resin.
Wherein each parts composition and parameter are as following table:
Table 1 nozzle component composition and parameter
Ask for an interview Fig. 5, printed electronic private print shower nozzle principle of the present invention is: utilize the contrary of piezoelectric ceramic ring to pressElectrical effect is mechanical energy by electric energy conversion. Particularly: when shower nozzle is not worked, state is A. In the time of its work,The power supply external by wire applies voltage to piezoelectric ceramic ring, produces electric field E, as shown in B. At electric field EThere is inverse piezoelectric effect in effect lower piezoelectric pottery, and produce deformation and push jet pipe, and then ink in extruding jet pipe,As shown in C. After ink is squeezed, spray jet pipe, thereby realize the course of injection of ink.
In the time that external power supply provides suitable voltage waveform, ink can complete the accurate injection of little error.
Being different from all piezoelectric ink jet shower nozzles is at present all situation about studying according to laminar model, the present inventionFlow process by ink in shower nozzle is regarded turbulent flow as, and provides a correction piezoelectric ceramic ring, makes ink streamMoving more convergence laminar flow. Why selecting like this, is that special ink viscosity is general because with regard to printed electronicBe less than 40cP (1cP=1dynscm-2=10-1Pas), what have even only has about 1cP, works as in this caseWhen print speed is very fast, the ink reality that flows more approaches turbulent flow, and laminar flow while carrying out numeric value analysis according to turbulence modelCan be processed equally, adopt turbulence model to process therefore the present invention relates to the mobile research of ink, and at shower nozzleWhen design, increase by one and revise piezoelectric ceramic ring, make the mobile more convergence laminar flow of ink.
Printed electronic private print shower nozzle of the present invention adopts the mode of minute-pressure electricity, why selects like this, be because ofFor printed electronic and common ink-jet ink to shower nozzle require different. The just color that common ink possesses belongs toProperty, and printed electronic contains certain electric property (such as according to electric capacity, electric pole, resistance conventionally with inkDifferent in kind and contain different conductive silver pastes or the associated materials of semiconductor, insulator). It is as shown in table 2,For the main difference of printed electronic ink and common ink.
The contrast of table 2 printed electronic ink and common ink
| Printed electronic ink | Common ink-jet ink | |
| Flow model | Turbulent flow | Laminar flow |
| Ink excursion | Diverse material, technique, attribute | More single |
| Chemical stability | Can not change the performance of ink own | Part is variable |
At present ripe and conventional ink-jetting style mainly contains two kinds of piezoelectric type and thermal bubble types, and both are to such as table 3Shown in.
The contrast of table 3 thermal bubble type and two kinds of ink-jetting styles of piezoelectric type
Because piezoelectric ink jet process does not have variations in temperature, keep the stability of ink performance, and piezoelectric ink jetOther features also meet the requirement of printed electronic, therefore the nozzle specially used design of printed electronic of the present invention adopts minute-pressure electricityMode.
According to existing research, circular piezoelectric pottery has obvious advantage compared with square, and piezoelectricity potteryCeramic material lead zirconate titanate PZT functional, dependent variable is larger, under low voltage condition, strain and electric fieldSubstantially linear, stable performance, therefore the present invention selects piezoelectric ceramics cylinder ring, PZT ceramic material to printingBrush electronic printable shower nozzle designs. And PZT strain in the time of zirconium titanium ratio 0.52:0.48 is best, pretend as preferably,Piezoceramic material is selected Pb (Zr0.52Ti0.48)O3。
Asking for an interview Fig. 4, is the piezoelectric ceramics structural representation in the present embodiment piezoelectric ceramic ring used. Piezoelectricity potteryPorcelain by substrate (10 and 11), anti-delamination 1, bottom electrode 13, piezoceramic material 14, top electrode 15 by underUpwards bond layer by layer. Effect and the parameter of each parts are as shown in table 4.
Table 4 piezoelectric ceramics structure composition and each parts effect
After tested, select the performance of the shower nozzle that above parameter obtains as shown in table 5.
Table 5 sprinkler performance parameter
The shower nozzle of the present invention ink viscosity scope 1～100cP that can undertake the printing of, ink droplet diameter 100 μ m, ink droplet sprays weekIn phases 40 μ s, driving signal frequency 16～24kHz, maximal rate can reach more than 50000. Not only reduceThe ink droplet error of spraying, ensure that the chemical property of course of injection ink inside is not changed, and can meet sealThe requirements such as brush electronics is good, applied widely for shower nozzle chemical stability, the kind of can undertaking the printing of is many, be quick on the draw.
Spray this mode and be not only applicable to printed electronic and realize ink droplet by minute-pressure electricity, also can be used for that other are verticalThe association areas such as body printing, 3D printing, market range of application is very extensive. With Pb (Zr0.52Ti0.48) O3As the piezoelectric of shower nozzle, not only can realize well the accurate injection of ink droplet, also can pass through control inputsVoltage waveform reduces ink droplet injection error.
Claims (4)
1. a printed electronic private print shower nozzle, comprises jet pipe (3) and containment vessel (1), and fixing by support zone (2) between jet pipe (3) and containment vessel (1), nozzle (4) and described jet pipe (3) are an entirety; It is characterized in that, also comprise main piezoelectric ceramic ring (5) and revise voltage ceramic ring (6), be looped around on jet pipe, and main piezoelectric ceramic ring (5) and correction piezoelectric ceramic ring (6) all pass through wire (7) and be connected with external power supply (16);
Under electric field action, there is inverse piezoelectric effect and produce deformation in described main piezoelectric ceramic ring, driving ink droplet sprays, and described correction piezoelectric ceramic ring inverse piezoelectric effect occurs under electric field action and produces deformation, and the jeting effect of ink droplet is revised, ink droplet is sprayed more concentrated, error is less.
2. printed electronic private print shower nozzle according to claim 1, it is characterized in that: described main piezoelectric ceramic ring (5) and correction piezoelectric ceramic ring (6) are made up of connecting portion (8) and piezoelectric ceramics (9), described piezoelectric ceramics (9) is bondd and forms layer by layer from bottom to top by substrate, anti-delamination (12), bottom electrode (13), piezoceramic material (14), top electrode (15), and top electrode (15) is connected with wire (7).
3. printed electronic private print shower nozzle according to claim 2, it is characterized in that: the piezoelectric ceramics (9) of described main piezoelectric ceramic ring (5) and correction piezoelectric ceramic ring (6) is hollow cylinder, and is looped around on jet pipe (3) by connecting portion (8).
4. printed electronic private print shower nozzle according to claim 2, is characterized in that: the piezoceramic material (14) of described piezoelectric ceramics (9) adopts lead zirconate titanate to be made, and wherein zirconium titanium atom compares 0.52:0.48.
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| CN201410093171.3A CN103879147B (en) | 2014-03-13 | 2014-03-13 | A kind of printed electronic private print shower nozzle |
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| CN201410093171.3A CN103879147B (en) | 2014-03-13 | 2014-03-13 | A kind of printed electronic private print shower nozzle |
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| CN103879147B true CN103879147B (en) | 2016-05-25 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106635745B (en) * | 2017-02-09 | 2019-06-07 | 合肥智格电子信息科技有限公司 | Biological 3D printing spray head |
| CN113459671B (en) * | 2021-06-28 | 2022-04-22 | 华南理工大学 | Flexible variable-size micro-piezoelectric spray head based on electromagnetic coupling effect and adjusting method |
| CN114312028B (en) * | 2021-12-22 | 2023-03-17 | Tcl华星光电技术有限公司 | Printhead inkjet system and inkjet printing apparatus |
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| CN101288864A (en) * | 2008-06-11 | 2008-10-22 | 刘淑芹 | Liquid spray head based on piezoelectric bridge type beam and flexible thin film |
| CN103157577A (en) * | 2013-04-03 | 2013-06-19 | 哈尔滨工业大学（威海） | Piezoelectrically-driven jet type glue dispensing device |
| CN103434272A (en) * | 2013-08-23 | 2013-12-11 | 浙江大学 | Piezoelectric type jet nozzle device for micro-droplet generation |
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| DE19531652A1 (en) * | 1995-08-29 | 1997-05-07 | Bosch Gmbh Robert | Fuel injection valve for internal combustion engines |
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| US8028930B2 (en) * | 2006-01-23 | 2011-10-04 | Kimberly-Clark Worldwide, Inc. | Ultrasonic fuel injector |
| CN101703980A (en) * | 2009-11-09 | 2010-05-12 | 哈尔滨工程大学 | Ultrasonic wave and pressure rotary atomizer |
| US8550601B2 (en) * | 2011-03-23 | 2013-10-08 | Xerox Corporation | Use of photoresist material as an interstitial fill for PZT printhead fabrication |
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Patent Citations (3)
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| CN101288864A (en) * | 2008-06-11 | 2008-10-22 | 刘淑芹 | Liquid spray head based on piezoelectric bridge type beam and flexible thin film |
| CN103157577A (en) * | 2013-04-03 | 2013-06-19 | 哈尔滨工业大学（威海） | Piezoelectrically-driven jet type glue dispensing device |
| CN103434272A (en) * | 2013-08-23 | 2013-12-11 | 浙江大学 | Piezoelectric type jet nozzle device for micro-droplet generation |
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Effective date of registration: 20170808 Address after: 431600 Chengdong Industrial Development Zone, Xiaogan, Hubei, Hanchuan Patentee after: HUBEI HENGDA PACKING CO., LTD. Address before: 430072 Hubei Province, Wuhan city Wuchang District of Wuhan University Luojiashan Patentee before: Wuhan University |
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