CN103879147A - Printing spraying head special for printing electronics - Google Patents
Printing spraying head special for printing electronics Download PDFInfo
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- CN103879147A CN103879147A CN201410093171.3A CN201410093171A CN103879147A CN 103879147 A CN103879147 A CN 103879147A CN 201410093171 A CN201410093171 A CN 201410093171A CN 103879147 A CN103879147 A CN 103879147A
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- piezoelectric ceramic
- ceramic ring
- printing
- piezoelectric
- ink
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Abstract
The invention discloses a printing spraying head special for printing electronics. The printing spraying head comprises a spraying pipe and a protective shell. The spraying pipe and the protective shell are fixed through a supporting portion. A spraying nozzle and the spraying pipe are integrated. A main piezoelectric ceramic ring and a correction piezoelectric ceramic ring are installed on the spraying pipe. An upper electrode of piezoelectric ceramic is connected with a wire. The wire is connected with an external power source. A voltage with a proper wave shape is input to the piezoelectric ceramic rings. It is ensured that the piezoelectric ceramic rings have an inverse piezoelectric effect and deform under the action of an electric field, and ink droplets are driven to be sprayed. According to the printing spraying head special for the printing electronics, the piezoelectric ceramic rings are adopted to replace a sheet structure in a traditional piezoelectric type spraying head, and the small piezoelectric ceramic ring is added below the spraying pipe to correct an ink spraying model, so that ink flows like laminar flow, and the requirements of the printing electronics for good chemical stability, sensitive reaction and the like of the spraying head are met.
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 market prospects.
Printed electronic (PE, Printed Electronics) is to utilize the mode of printing to realize a kind of technique and the technology of the manufacture of electronic circuit or electronic device.Printed electronic is since occurring, because it can be printed, applied widely, at a low price the feature such as excellent energy is subject to each side and pays close attention to and cause research boom.According to AUTHORITATIVE DATA statistics, printed electronics applications market in 2015 estimates to reach 5,200,000,000 dollars.
As the microelectronic Primary Component of printing, file printing shower nozzle (material printing head) is one of key factor of impact printing microelectronic product quality.But it is synthetic that all research at present all concentrates on the materials such as ink, and shower nozzle is rarely had and related to.And printed electronic is because the features such as the electric conductivity having itself require ink to keep chemical property constant, realize the injection of accurate little error in course of injection simultaneously.Existing shower nozzle can not meet the above-mentioned requirements of printed electronic, on market, does not also have for the custom-designed shower nozzle of printed electronic.
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, between jet pipe and containment vessel, fixes by support zone, and nozzle and described jet pipe are an entirety; Also comprise main piezoelectric ceramic ring and revise voltage ceramic ring, being 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, and described piezoelectric ceramics is bondd and forms layer by layer from bottom to top by substrate, anti-delamination, bottom electrode, piezoceramic material, top electrode, and 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 (SiO
2)) 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, and wherein zirconium titanium atom is than 0.52:0.48, and piezoceramic material used is Pb (Zr
0.52ti
0.48) O
3.
The top electrode of described piezoelectric ceramics adopts platinum (Pt) to be made, and is connected by the mode of welding with wire, and while guaranteeing external power supply, voltage can be sent on piezoelectric ceramics.
Described wire is connected with external power supply, input 220V alternating current, and the institute's waveform that produces voltage is as shown in Figure 1 given main piezoelectric ceramic ring, guarantees that main piezoelectric ceramic ring inverse piezoelectric effect occurs under electric field action and produces deformation, the injection of driving ink droplet.
Described wire is connected with external power supply, input 220V alternating current, the waveform that produces voltage as shown in Figure 1 give revise piezoelectric ceramic ring, guarantee to revise piezoelectric ceramic ring there is inverse piezoelectric effect and produces deformation under electric field action, jeting effect to 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, adopt 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, reduce the error that ink droplet sprays, the chemical property that guarantees course of injection ink inside is not changed, and can meet the requirements such as printed electronic is good, applied widely for shower nozzle chemical stability, the kind of can undertaking the printing of is many, be quick on the draw.
Accompanying drawing explanation
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-piezoceramic material, 15-top electrode, 16-external power supply.
Fig. 3: main piezoelectric ceramic ring and correction piezoelectric ceramic ring structural representation in printed electronic private print shower nozzle of the present invention.
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.
The specific embodiment
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, and fixing by support zone 2 between jet pipe 3 and containment vessel 1, nozzle 4 and described jet pipe 3 are an entirety; Also comprise main piezoelectric ceramic ring 5 and revise voltage ceramic ring 6, being looped around on jet pipe, and main piezoelectric ceramic ring 5 is all connected with external power supply 16 by wire 7 with correction piezoelectric ceramic ring 6.
As shown in Figure 3, described main piezoelectric ceramic ring 5 and correction piezoelectric ceramic ring 6 are made up of connecting portion 8 and piezoelectric ceramics 9.
As shown in Figure 4, described piezoelectric ceramics 9 is bondd and forms layer by layer from bottom to top by substrate (silicon 10 and silica 1 1), anti-delamination 12, bottom electrode 13, piezoceramic material 14, top electrode 15, and wherein top electrode 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 made up of bottom silicon 10 and upper strata silica 11; Anti-delamination 12 adopts the metal such as thallium (Ti) or gold (Au) to be made; Bottom electrode 13 adopts platinum (Pt) to be made; Piezoceramic material 14 adopts lead zirconate titanate (PZT) to be made, wherein zirconium titanium ratio 0.52:0.48, and piezoceramic material used is Pb (Zr0
.52ti
0.48) O
3; The top electrode 15 of piezoelectric ceramics 9 adopts platinum (Pt) to be made, and is connected with soldered wire 7, and while guaranteeing external power supply, voltage can be sent on piezoelectric ceramics.
Another wire 7 is connected with another external power supply 16, input the voltage of suitable waveform to revising piezoelectric ceramic ring 6, guarantee to revise piezoelectric ceramic ring 6 there is inverse piezoelectric effect and produces deformation under electric field action, jeting effect to ink droplet is revised, ink droplet is sprayed more concentrated, error is less.
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: utilizing the inverse piezoelectric effect of piezoelectric ceramic ring 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.There is inverse piezoelectric effect at electric field E effect lower piezoelectric pottery, 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 present all piezoelectric ink jet shower nozzles is all situation about studying according to laminar model, the present invention by ink the flow process in shower nozzle regard turbulent flow as, and provide one and revise piezoelectric ceramic ring, make the ink more convergence laminar flow that flows.Why select like this, because with regard to printed electronic, special ink viscosity is generally less than 40cP (1cP=1dynscm-2=10-1Pas), what have even only has about 1cP, in the time that print speed is very fast, the mobile reality of ink more approaches turbulent flow in this case, and laminar flow can be processed equally while carrying out numeric value analysis according to turbulence model, adopt turbulence model to process therefore the present invention relates to the mobile research of ink, and in the time of sprinkler design, increase a correction 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 printed electronic and common ink-jet ink to shower nozzle require different.The just color attribute that common ink possesses, and printed electronic contains certain electric property (such as the associated materials that contains different conductive silver pastes or semiconductor, insulator according to the different in kind of electric capacity, electric pole, resistance) conventionally with ink.As shown in table 2, be 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 contrast as shown in table 3.
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, kept the stability of ink performance, and other features of piezoelectric ink jet also meet the requirement of printed electronic, therefore the nozzle specially used design of printed electronic of the present invention adopts the mode of minute-pressure electricity.
According to existing research, circular piezoelectric pottery has obvious advantage compared with square, and piezoceramic material lead zirconate titanate PZT is functional, dependent variable is larger, under low voltage condition, strain and electric field are substantially linear, and stable performance, therefore the present invention selects piezoelectric ceramics cylinder ring, PZT ceramic material to design printed electronic printing head.And PZT strain in the time of zirconium titanium ratio 0.52:0.48 is best, to pretend as preferably, piezoceramic material is selected Pb (Zr
0.52ti
0.48) O
3.
Asking for an interview Fig. 4, is the piezoelectric ceramics structural representation in the present embodiment piezoelectric ceramic ring used.Piezoelectric ceramics is bondd from bottom to top layer by layer by substrate (10 and 11), anti-delamination 1, bottom electrode 13, piezoceramic material 14, top electrode 15.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, in ink droplet injection cycle 40 μ s, driving signal frequency 16～24kHz, maximal rate can reach more than 50000.Not only reduce the error that ink droplet sprays, guaranteed that the chemical property of course of injection ink inside is not changed, and can meet the requirements such as printed electronic 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 the association area such as other stereosopic printings, 3D printing, market range of application is very extensive.With Pb (Zr0.52Ti0.48) O
3as the piezoelectric of shower nozzle, not only can realize well the accurate injection of ink droplet, also can reduce ink droplet injection error by control inputs voltage waveform.
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).
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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 CN103879147B (en) | 2016-05-25 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106635745A (en) * | 2017-02-09 | 2017-05-10 | 合肥智格电子信息科技有限公司 | Biological 3D (three-dimensional) print head |
| CN113459671A (en) * | 2021-06-28 | 2021-10-01 | 华南理工大学 | Flexible variable-size micro-piezoelectric spray head based on electromagnetic coupling effect and adjusting method |
| CN114312028A (en) * | 2021-12-22 | 2022-04-12 | Tcl华星光电技术有限公司 | Printhead inkjet system and inkjet printing apparatus |
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| GB2304814A (en) * | 1995-08-29 | 1997-03-26 | Bosch Gmbh Robert | I.c. engine fuel injection valve with piezostack actuation |
| US20070097182A1 (en) * | 2004-02-27 | 2007-05-03 | Canon Kabushiki Kaisha | Piezoelectric thin film, method of manufacturing piezoelectric thin film, piezoelectric element, and ink jet recording head |
| US20070170275A1 (en) * | 2006-01-23 | 2007-07-26 | Kimberly-Clark Worldwide, Inc. | Ultrasonic fuel injector |
| CN101288864A (en) * | 2008-06-11 | 2008-10-22 | 刘淑芹 | Liquid spray head based on piezoelectric bridge type beam and flexible film |
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2014
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Patent Citations (8)
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|---|---|---|---|---|
| GB2304814A (en) * | 1995-08-29 | 1997-03-26 | Bosch Gmbh Robert | I.c. engine fuel injection valve with piezostack actuation |
| US20070097182A1 (en) * | 2004-02-27 | 2007-05-03 | Canon Kabushiki Kaisha | Piezoelectric thin film, method of manufacturing piezoelectric thin film, piezoelectric element, and ink jet recording head |
| US20070170275A1 (en) * | 2006-01-23 | 2007-07-26 | Kimberly-Clark Worldwide, Inc. | Ultrasonic fuel injector |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106635745A (en) * | 2017-02-09 | 2017-05-10 | 合肥智格电子信息科技有限公司 | Biological 3D (three-dimensional) print head |
| 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 |
| CN113459671A (en) * | 2021-06-28 | 2021-10-01 | 华南理工大学 | Flexible variable-size micro-piezoelectric spray head based on electromagnetic coupling effect and adjusting method |
| CN114312028A (en) * | 2021-12-22 | 2022-04-12 | Tcl华星光电技术有限公司 | Printhead inkjet system and inkjet printing apparatus |
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| Publication number | Publication date |
|---|---|
| CN103879147B (en) | 2016-05-25 |
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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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