CN103909731B - Electroosmosis ink jet device - Google Patents
Electroosmosis ink jet device Download PDFInfo
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- CN103909731B CN103909731B CN201310005333.9A CN201310005333A CN103909731B CN 103909731 B CN103909731 B CN 103909731B CN 201310005333 A CN201310005333 A CN 201310005333A CN 103909731 B CN103909731 B CN 103909731B
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- 238000005370 electroosmosis Methods 0.000 title abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 34
- 230000005684 electric field Effects 0.000 claims abstract description 23
- 239000012530 fluid Substances 0.000 claims description 42
- 230000004888 barrier function Effects 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 12
- 239000011810 insulating material Substances 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 239000008400 supply water Substances 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 239000004411 aluminium Substances 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 description 12
- 238000007641 inkjet printing Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 238000007639 printing Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 229920002379 silicone rubber Polymers 0.000 description 5
- 238000005507 spraying Methods 0.000 description 5
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229910052697 platinum Inorganic materials 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000010339 dilation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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- Coating Apparatus (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention provides an electroosmosis ink-jet device, which comprises a micro-flow channel pipe, a nozzle and a microelectrode; the micro-channel pipe is in a cylindrical shape with a hollow interior, the inner cavity of the micro-channel pipe is a micro-channel for ink to flow through, one end of the micro-channel pipe is connected with an ink supply device, and the other end of the micro-channel pipe is provided with the nozzle; the inner side walls at two ends of the micro-channel pipe are respectively embedded with one microelectrode, and an electric field formed between the two microelectrodes can drive ink in the micro-channel to move towards the direction of the nozzle. The electroosmosis ink jet device is high in ink jet quality and controllable in ink jet quality. The electroosmosis ink jet device does not need a complex driving system, and has the advantages of simple structure, small volume, easy processing and easy maintenance. The inner surfaces of the micro-flow channel pipe, the nozzle and the microelectrode of the electroosmosis ink jet device are provided with the insulating layers, so that joule heat can be avoided, the material selection range of the microelectrode is expanded, and the cost is reduced.
Description
Technical field
The present invention relates to ink discharge device technical field, particularly a kind of electric osmose ink discharge device.
Background technology
Ink discharge device is the core component of ink jet type printing device or ink jet type lettering pen.Ink discharge device is for driving ink droplet to flow and ink droplet being accurately ejected into printing or writing medium surface.Its ink-jetting style is depended in ink jetting quality such as droplet size, ink drop formation, ink ejection velocity and the direction etc. of ink discharge device.Common ink-jetting style has hot bubble type ink jet (Thermalbubbleinkjet) and piezoelectric ink jet (Piezoelectricinkjet).
Hot bubble type ink jet makes ink activate by heating and produces bubble, and air bubble expansion drives ink to flow in fluid channel, and forms ink marks through nozzle injection ink droplet to printing or writing medium surface.Hot bubble type ink jet controls ink ejection amount by regulating heating-up temperature.The bubble produced in heating process can by ink and heater isolation, thus avoid ink all to be heated.After stopping heating, ink cools, bubble shrinkage, and ink-jet stops.Hot bubble type ink jet mode has that spray nozzle density is high, small volume, cost are lower and the advantage such as drive system is simpler.But, hot bubble type ink jet exists significantly not enough: on the one hand, nozzle is often in the condition of high temperature, and nozzle place colds and heat succeed each other frequently, bubble is dilation repeatedly, and make ink jetting quality unstable, droplet size, ink drop formation, jet velocity and direction are wayward, ink discharge device is easily aging, needs often maintenance or changes ink discharge device; On the other hand, due to the restriction of the thermal conduction rate of ink discharge device and ink, ink jet process often has hysteresis, and jet speed is also comparatively slow, easily produces uneven ink droplet and ink residue.
Piezoelectric ink jet utilizes piezoelectric such as lead, zirconium, tantalum etc. to produce the principle of deformation after application of a voltage, realizes squeezeout ink in fluid channel to flow, and through nozzle spray ink droplet to print or writing medium surperficial.Piezoelectric ink jet is by the injection of the shape control ink droplet of piezoelectric, and droplet size, ink drop formation and injection direction all can accurately control, thus obtain good ink jetting quality.Owing to not needing high temperature, piezoelectric ink jet is on drop mass without impact, and to ink colorant no requirement (NR), ink jet process is without hysteresis, and nozzle is not fragile.But piezoelectric ink jet needs comparatively complicated drive system, complex structure, and ink discharge device volume comparatively greatly, and difficulty of processing is large, and nozzle damages or keeps in repair more difficult after blocking.
At present, be starved of that a kind of ink jetting quality is high and ink jetting quality is controlled, structure is simple, volume is little, easy processing, easy-maintaining novel ink-jet device.
Summary of the invention
The object of this invention is to provide a kind of electric osmose ink discharge device.
Electric osmose ink discharge device provided by the invention comprises miniflow deferent, nozzle and microelectrode; Described miniflow deferent is the cylindrical shape of inner hollow, and its internal cavities is the fluid channel that ink supply water flows through, and one end of described miniflow deferent is connected with ink-feeding device, and its other end is provided with described nozzle; The madial wall at described miniflow deferent two ends is respectively embedded with a described microelectrode, and the electric field formed between these two microelectrodes can drive the ink in described fluid channel to move to the direction of described nozzle.
Preferably, the madial wall in the middle part of described miniflow deferent is also embedded with microelectrode described at least one, and the direction of the electric field formed between any two adjacent described microelectrodes is identical.
Preferably, described nozzle is taper.
Preferably, the material of described microelectrode is inert metal.
Preferably, the material of described miniflow deferent and described nozzle is insulating materials.
Preferably, described electric osmose ink discharge device also comprise be embedded in described miniflow deferent madial wall on the liner of position except described microelectrode, described microelectrode and described in be lining with and be provided with multiple fluid channel, the cross section of described microelectrode and described liner is all double-edged fine-toothed comb shape, and described multiple fluid channel all communicates with described nozzle.
Preferably, the material of described miniflow deferent, described nozzle and described liner is insulating materials.
Preferably, described electric osmose ink discharge device also comprises the insulating barrier being located at described liner, described microelectrode and described inner nozzle surface.
Preferably, described electric osmose ink discharge device also comprises the insulating barrier being located at described miniflow deferent, described nozzle and described microelectrode inner surface.
Preferably, the material of described microelectrode is inert metal, copper, iron or aluminium.
The present invention has following beneficial effect:
(1) described electric osmose ink discharge device utilizes electroosmosis to drive ink to move in fluid channel, by regulating the voltage swing put between two microelectrodes can control the movement velocity of ink in fluid channel and the jet speed of nozzle, therefore its ink jetting quality is high and ink jetting quality is controlled;
(2) described electric osmose ink discharge device does not need complicated drive system, and structure is simple, and volume is little, easily processes, easy-maintaining;
(3) inner surface of the miniflow deferent of described electric osmose ink discharge device, nozzle and microelectrode is provided with insulating barrier, can avoid the generation of Joule heat, and expand the range of choice of the material of microelectrode, be conducive to reducing costs.
Accompanying drawing explanation
The longitudinal sectional drawing of the electric osmose ink discharge device that Fig. 1 provides for the embodiment of the present invention 1;
The electric osmose ink discharge device that Fig. 2 provides for the embodiment of the present invention 1 is along the transverse cross-sectional view in A-A direction;
The longitudinal sectional drawing of the electric osmose ink discharge device that Fig. 3 provides for the embodiment of the present invention 2;
The longitudinal sectional drawing of the electric osmose ink discharge device that Fig. 4 provides for the embodiment of the present invention 3;
The electric osmose ink discharge device that Fig. 5 provides for the embodiment of the present invention 3 is along the transverse cross-sectional view in B-B direction;
The electric osmose ink discharge device that Fig. 6 provides for the embodiment of the present invention 3 is along the transverse cross-sectional view in C-C direction;
The longitudinal sectional drawing of the electric osmose ink discharge device that Fig. 7 provides for the embodiment of the present invention 4;
The longitudinal sectional drawing of the electric osmose ink discharge device that Fig. 8 provides for the embodiment of the present invention 5;
The electric osmose ink discharge device that Fig. 9 provides for the embodiment of the present invention 5 is along the transverse cross-sectional view in D-D direction.
Detailed description of the invention
Below in conjunction with drawings and Examples, summary of the invention of the present invention is described in further detail.
Embodiment 1
As shown in Figure 1, the electric osmose ink discharge device that the present embodiment provides comprises miniflow deferent 11, nozzle 12 and two microelectrodes 13.The cylindrical shape of miniflow deferent 11 in inner hollow, its internal cavities is the fluid channel 14 that ink supply water flows through.One end of miniflow deferent 11 is connected with ink-feeding device (not shown), and the other end of miniflow deferent 11 is provided with nozzle 12.Nozzle 12 is such as taper, for spraying ink droplet.Microelectrode 13 is such as annular, as shown in Figure 2.Two microelectrodes 13 are embedded on the madial wall at miniflow deferent 11 two ends respectively, and two microelectrodes 13 directly can be contacted with the ink in fluid channel 14.The material of miniflow deferent 11 and nozzle 12 is insulating materials.In the present embodiment, the material of miniflow deferent 11 and nozzle 12 is such as silicon rubber.The material of microelectrode 13 is inert metal.In the present embodiment, the material of microelectrode 13 is such as platinum.Miniflow deferent 11, nozzle 12 and microelectrode 13 can adopt produced by micro processing technique to make.
During use, between two microelectrodes 13, apply voltage, form electric field between two microelectrodes 13, the ink in fluid channel 14 produces electroosmosis under the effect of electric field, drives ink to move to the direction of nozzle 12 relative to the medial surface of miniflow deferent 11.The ink moved in nozzle 12 is ejected into printing or writing medium surface by nozzle 12, thus forms ink marks.The movement velocity of ink in fluid channel 14 and the jet speed of nozzle 12 can be controlled by regulating the voltage swing put between two microelectrodes 13; The direction of motion of ink in fluid channel 14 can be changed by regulating the positive-negative polarity of the voltage put between two microelectrodes 13.The electric osmose ink discharge device that the present embodiment provides is applicable to ink that is non-conductive or weakly conducting.
Embodiment 2
As shown in Figure 3, the electric osmose ink discharge device that the present embodiment provides comprises miniflow deferent 21, nozzle 22 and three microelectrodes 23.The cylindrical shape of miniflow deferent 21 in inner hollow, its internal cavities is the fluid channel 24 that ink supply water flows through.One end of miniflow deferent 21 is connected with ink-feeding device (not shown), and the other end of miniflow deferent 21 is provided with nozzle 22.Nozzle 22 is such as taper, for spraying ink droplet.Microelectrode 23 is in such as annular.First microelectrode 231 and the second microelectrode 232 are embedded on the madial wall at miniflow deferent 21 two ends respectively, and the 3rd microelectrode 233 is embedded on the madial wall in the middle part of miniflow deferent 21, and three microelectrodes 23 directly can be contacted with the ink in fluid channel 24.The material of miniflow deferent 21 and nozzle 22 is insulating materials.In the present embodiment, the material of miniflow deferent 21 and nozzle 22 is such as silicon rubber.The material of microelectrode 23 is inert metal.In the present embodiment, the material of microelectrode 23 is such as gold.Miniflow deferent 21, nozzle 22 and microelectrode 23 can adopt produced by micro processing technique to make.
During use, the first voltage is applied between the first microelectrode 231 and the 3rd microelectrode 233, and the second voltage is applied between the 3rd microelectrode 233 and between the second microelectrode 232, the first electric field is formed between first microelectrode 231 and the 3rd microelectrode 233, the second electric field is formed between 3rd microelectrode 233 and between the second microelectrode 232, and the first electric field is identical with the direction of the second electric field, ink in fluid channel 24 produces electroosmosis under the effect of the first electric field and the second electric field, drives ink to move to the direction of nozzle 22 relative to the medial surface of miniflow deferent 21.The ink moved in nozzle 22 is ejected into printing or writing medium surface by nozzle 22, thus forms ink marks.The movement velocity of ink in fluid channel 24 and the jet speed of nozzle 22 can be controlled by regulating the size of the first voltage and the second voltage; The direction of motion of ink in fluid channel 24 can be changed by regulating the positive-negative polarity of the first voltage and the second voltage simultaneously.The electric osmose ink discharge device that the present embodiment provides is applicable to ink that is non-conductive or weakly conducting.
It should be noted that, in the present embodiment, the number of microelectrode 23 is not limited only to three, and the number of microelectrode 23 also can for being more than or equal to four.
Compared with embodiment 1, the electric osmose ink discharge device of the present embodiment adds a microelectrode at the middle part of miniflow deferent 21, first voltage and the second voltage are all obviously reduced than the voltage put between two microelectrodes of embodiment 1, reduce and execute alive difficulty, be conducive to the cost reducing electric osmose ink discharge device.
Embodiment 3
As shown in Figure 4, Figure 5 and Figure 6, the electric osmose ink discharge device that the present embodiment provides comprises miniflow deferent 31, nozzle 32, two microelectrodes 33 and liner 35.The cylindrical shape of miniflow deferent 31 in inner hollow.One end of miniflow deferent 31 is connected with ink-feeding device (not shown), and the other end of miniflow deferent 31 is provided with nozzle 32.Nozzle 32 is such as taper, for spraying ink droplet.Two microelectrodes 33 are embedded on the madial wall at miniflow deferent 31 two ends respectively, and two microelectrodes 33 directly can be contacted with the ink in fluid channel 34.Position on the madial wall that liner 35 is embedded in miniflow deferent 31 except two microelectrodes 33.Miniflow deferent 31 can be separated with liner 35, also can be integrated.Microelectrode 33 and liner 35 are provided with the fluid channel 34 of multiple circle, and the cross section of microelectrode 33 and liner 35 is all double-edged fine-toothed comb shape, as shown in Figure 5 and Figure 6.Multiple fluid channel 34 all communicates with nozzle 32, makes the ink flowing through multiple fluid channel 34 can both flow nozzle 32.The material of miniflow deferent 31, nozzle 32 and liner 35 is insulating materials.In the present embodiment, the material of miniflow deferent 31, nozzle 32 and liner 35 is such as silicon rubber.The material of microelectrode 33 is inert metal.In the present embodiment, the material of microelectrode 33 is such as silver.Miniflow deferent 31, nozzle 32, microelectrode 33 and liner 35 can adopt produced by micro processing technique to make.
During use, between two microelectrodes 33, apply voltage, form electric field between two microelectrodes 33, the ink in fluid channel 34 produces electroosmosis under the effect of electric field, drives ink to move to the direction of nozzle 32 relative to the medial surface of liner 35.The ink moved in nozzle 32 is ejected into printing or writing medium surface by nozzle 32, thus forms ink marks.The movement velocity of ink in fluid channel 34 and the jet speed of nozzle 32 can be controlled by regulating the voltage swing put between two microelectrodes 33; The direction of motion of ink in fluid channel 31 can be changed by regulating the positive-negative polarity of the voltage put between two microelectrodes 33.The electric osmose ink discharge device that the present embodiment provides is applicable to ink that is non-conductive or weakly conducting.
Compared with embodiment 1, the liner 35 of double-edged fine-toothed comb shape is provided with in the miniflow deferent 31 of the electric osmose ink discharge device of the present embodiment, liner 35 is provided with multiple fluid channel 34 can strengthen electroosmosis, and the driving force of ink is multiplied, and is conducive to the ink-jet efficiency improving electric osmose ink discharge device.
Embodiment 4
As shown in Figure 7, the electric osmose ink discharge device that the present embodiment provides comprises miniflow deferent 41, nozzle 42, three microelectrodes 43 and liner 45.The cylindrical shape of miniflow deferent 41 in inner hollow.One end of miniflow deferent 41 is connected with ink-feeding device (not shown), and the other end of miniflow deferent 41 is provided with nozzle 42.Nozzle 42 is such as taper, for spraying ink droplet.First microelectrode 431 and the second microelectrode 432 are embedded on the madial wall at miniflow deferent 41 two ends respectively, and the 3rd microelectrode 433 is embedded on the madial wall in the middle part of miniflow deferent 41, and three microelectrodes 43 directly can be contacted with the ink in fluid channel 44.Liner 45 is embedded in the position on miniflow deferent 41 madial wall except three microelectrodes 43.Miniflow deferent 41 can be separated with liner 45, also can be integrated.Microelectrode 43 and liner 45 are provided with the fluid channel 44 of multiple circle, and the cross section of microelectrode 43 and liner 45 is all double-edged fine-toothed comb shape.Multiple fluid channel 44 all communicates with nozzle 42, makes the ink flowing through multiple fluid channel 44 can both flow nozzle 42.The material of miniflow deferent 41, nozzle 42 and liner 45 is insulating materials.In the present embodiment, the material of miniflow deferent 41, nozzle 42 and liner 45 is such as silicon rubber.The material of microelectrode 43 is inert metal.In the present embodiment, the material of microelectrode 43 is such as platinum.Miniflow deferent 41, nozzle 42, microelectrode 43 and liner 45 can adopt produced by micro processing technique to make.
During use, the first voltage is applied between the first microelectrode 431 and the 3rd microelectrode 433, and the second voltage is applied between the 3rd microelectrode 433 and between the second microelectrode 432, the first electric field is formed between first microelectrode 431 and the 3rd microelectrode 433, the second electric field is formed between 3rd microelectrode 433 and between the second microelectrode 432, and the first electric field is identical with the direction of the second electric field, ink in fluid channel 44 produces electroosmosis under the effect of the first electric field and the second electric field, drives ink to move to the direction of nozzle 42 relative to the medial surface of liner 45.The ink moved in nozzle 42 is ejected into printing or writing medium surface by nozzle 42, thus forms ink marks.The movement velocity of ink in fluid channel 44 and the jet speed of nozzle 42 can be controlled by regulating the size of the first voltage and the second voltage; The direction of motion of ink in fluid channel 44 can be changed by regulating the positive-negative polarity of the first voltage and the second voltage simultaneously.The electric osmose ink discharge device that the present embodiment provides is applicable to ink that is non-conductive or weakly conducting.
It should be noted that, in the present embodiment, the number of microelectrode 43 is not limited only to three, and the number of microelectrode 43 also can for being more than or equal to four.
Compared with embodiment 1, the electric osmose ink discharge device of the present embodiment is with the advantage of embodiment 2 and embodiment 3.
Embodiment 5
As shown in Figure 8 and Figure 9, the electric osmose ink discharge device that the present embodiment provides comprises miniflow deferent 51, nozzle 52, two microelectrodes 53 and insulating barrier 55.The cylindrical shape of miniflow deferent 51 in inner hollow, its internal cavities is the fluid channel 54 that ink supply water flows through.Insulating barrier 55 is located at the inner surface of miniflow deferent 51, nozzle 52 and microelectrode 53, isolates for making miniflow deferent 51, nozzle 52 and microelectrode 53 and ink.The thickness of insulating barrier 55 is micron dimension.One end of miniflow deferent 51 is connected with ink-feeding device (not shown), and the other end of miniflow deferent 51 is provided with nozzle 52.Nozzle 52 is such as taper, for spraying ink droplet.Microelectrode 53 is such as annular, as shown in Figure 9.Two microelectrodes 53 are embedded on the madial wall at miniflow deferent 51 two ends respectively, and two microelectrodes 53 directly can be contacted with the ink in fluid channel 54.The material of miniflow deferent 51 and nozzle 52 is insulating materials.In the present embodiment, the material of miniflow deferent 51 and nozzle 52 is such as silicon rubber.The material of microelectrode 53 is not limited only to inert metal, can also be such as iron, copper or aluminium.In the present embodiment, the material of microelectrode 53 is such as copper.Miniflow deferent 51, nozzle 52 and microelectrode 53 can adopt produced by micro processing technique to make.
During use, between two microelectrodes 53, apply voltage, form electric field between two microelectrodes 53, the ink in fluid channel 54 produces electroosmosis under the effect of electric field, drives ink to move to the direction of nozzle 52 relative to the medial surface of miniflow deferent 51.The ink moved in nozzle 52 is ejected into printing or writing medium surface by nozzle 52, thus forms ink marks.The movement velocity of ink in fluid channel 54 and the jet speed of nozzle 52 can be controlled by regulating the voltage swing put between two microelectrodes 53; The direction of motion of ink in fluid channel 54 can be changed by regulating the positive-negative polarity of the voltage put between two microelectrodes 53.The electric osmose ink discharge device that the present embodiment provides is applicable to ink that is non-conductive or weakly conducting.
Compared with embodiment 1-4, the inner surface of the miniflow deferent 51 of the electric osmose ink discharge device of the present embodiment, nozzle 52 and microelectrode 53 is provided with insulating barrier 55, isolate for making miniflow deferent 51, nozzle 52 and microelectrode 53 and ink, the generation of Joule heat can be avoided, and make the material of microelectrode 53 be not limited only to inert metal, expand the material range of choice of microelectrode 53, be conducive to reducing costs.
Embodiment 6
The difference of the electric osmose ink discharge device that the present embodiment provides and the electric osmose ink discharge device of embodiment 2 is that the inner surface of miniflow deferent, nozzle and microelectrode is provided with insulating barrier, and all the other are identical with embodiment 2.
Embodiment 7
The difference of the electric osmose ink discharge device that the present embodiment provides and the electric osmose ink discharge device of embodiment 3 is liners, the inner surface of microelectrode and nozzle is provided with insulating barrier, and all the other are identical with embodiment 3.
Embodiment 8
The difference of the electric osmose ink discharge device that the present embodiment provides and the electric osmose ink discharge device of embodiment 4 is liners, the inner surface of microelectrode and nozzle is provided with insulating barrier, and all the other are identical with embodiment 4.
Above embodiment is only for illustration of the present invention; and be not limitation of the present invention; the those of ordinary skill of relevant technical field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all equivalent technical schemes also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (11)
1. electric osmose ink discharge device, is characterized in that, this electric osmose ink discharge device comprises miniflow deferent, nozzle and microelectrode; Described miniflow deferent is the cylindrical shape of inner hollow, and its internal cavities is the fluid channel that ink supply water flows through, and one end of described miniflow deferent is connected with ink-feeding device, and its other end is provided with described nozzle; The madial wall at described miniflow deferent two ends is respectively embedded with a described microelectrode, and the electric field formed between these two microelectrodes can drive the ink in described fluid channel to move to the direction of described nozzle;
Madial wall in the middle part of described miniflow deferent is also embedded with microelectrode described at least one, and the direction of the electric field formed between any two adjacent described microelectrodes is identical.
2. electric osmose ink discharge device according to claim 1, is characterized in that, described nozzle is taper.
3. electric osmose ink discharge device according to claim 1, is characterized in that, the material of described microelectrode is inert metal.
4. electric osmose ink discharge device according to claim 1, is characterized in that, the material of described miniflow deferent and described nozzle is insulating materials.
5. electric osmose ink discharge device according to claim 1, it is characterized in that, described electric osmose ink discharge device also comprise be embedded in described miniflow deferent madial wall on the liner of position except described microelectrode, described microelectrode and described in be lining with and be provided with multiple fluid channel, the cross section of described microelectrode and described liner is all double-edged fine-toothed comb shape, and described multiple fluid channel all communicates with described nozzle.
6. electric osmose ink discharge device according to claim 5, is characterized in that, the material of described microelectrode is inert metal.
7. electric osmose ink discharge device according to claim 5, is characterized in that, the material of described miniflow deferent, described nozzle and described liner is insulating materials.
8. electric osmose ink discharge device according to claim 5, is characterized in that, described electric osmose ink discharge device also comprises the insulating barrier being located at described liner, described microelectrode and described inner nozzle surface.
9. electric osmose ink discharge device according to claim 8, is characterized in that, the material of described microelectrode is inert metal, copper, iron or aluminium.
10. electric osmose ink discharge device according to claim 1, is characterized in that, described electric osmose ink discharge device also comprises the insulating barrier being located at described miniflow deferent, described nozzle and described microelectrode inner surface.
11. electric osmose ink discharge devices according to claim 10, is characterized in that, the material of described microelectrode is inert metal, copper, iron or aluminium.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310005333.9A CN103909731B (en) | 2013-01-07 | 2013-01-07 | Electroosmosis ink jet device |
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| CN201310005333.9A CN103909731B (en) | 2013-01-07 | 2013-01-07 | Electroosmosis ink jet device |
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| CN103909731B true CN103909731B (en) | 2016-01-13 |
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| CN1832858A (en) * | 2003-08-08 | 2006-09-13 | 夏普株式会社 | Electrostatic attraction type fluid delivery device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02160557A (en) * | 1988-12-14 | 1990-06-20 | Minolta Camera Co Ltd | Ink jet printer |
| JPH02178055A (en) * | 1988-12-28 | 1990-07-11 | Minolta Camera Co Ltd | Ink jet printer |
| JP2009234026A (en) * | 2008-03-27 | 2009-10-15 | Casio Comput Co Ltd | Electrostatic suction type ink jet head |
| JP5266456B2 (en) * | 2009-02-17 | 2013-08-21 | 浜松ナノテクノロジー株式会社 | Discharge head |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1282664A (en) * | 1999-07-30 | 2001-02-07 | 大西洋蔡塞有限公司 | Printing unit of ink jet printing equipment |
| CN1832858A (en) * | 2003-08-08 | 2006-09-13 | 夏普株式会社 | Electrostatic attraction type fluid delivery device |
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| Publication number | Publication date |
|---|---|
| CN103909731A (en) | 2014-07-09 |
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Application publication date: 20140709 Assignee: BEIJING DREAM INK TECHNOLOGIES Co.,Ltd. Assignor: Technical Institute of Physics and Chemistry Chinese Academy of Sciences Contract record no.: 2016990000417 Denomination of invention: Electro-osmosis ink jetting device Granted publication date: 20160113 License type: Exclusive License Record date: 20161008 |
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Effective date of registration: 20240228 Address after: 100081 room 9009, 9 / F, 65 North Fourth Ring Road West, Haidian District, Beijing Patentee after: BEIJING DREAM INK TECHNOLOGIES Co.,Ltd. Country or region after: China Address before: No. 29 East Zhongguancun Road, Haidian District, Beijing 100190 Patentee before: Technical Institute of Physics and Chemistry Chinese Academy of Sciences Country or region before: China |