CN101306412B - Fluid spray actuating structure - Google Patents
Fluid spray actuating structure Download PDFInfo
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- CN101306412B CN101306412B CN2007101063525A CN200710106352A CN101306412B CN 101306412 B CN101306412 B CN 101306412B CN 2007101063525 A CN2007101063525 A CN 2007101063525A CN 200710106352 A CN200710106352 A CN 200710106352A CN 101306412 B CN101306412 B CN 101306412B
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- shaped hole
- actuating structure
- oscillating plate
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Abstract
The invention relates to a fluid atomizing and actuating structure which is applied to an atomizer and is used for spraying and atomizing fluid under the action of an electric field. The fluid atomizing and actuating structure comprises a base plate, a vibrating plate and an actuating element; the base plate forms a cavity for storing fluid; fixed ends are arranged on the both sides of the vibrating plate, a plurality of spraying holes are formed between the fixed ends, the fixed ends are respectively arranged fixedly arranged on the base plate for closing one side of the cavity, space blocks are formed between two adjacent spraying holes, a formed hole block and an accuracy block extending from the formed hole block in an integrated manner are arranged on each space block, wherein, the width of the cross section of the formed hole block is larger than the width of the cross section of the accuracy block, and the thickness of cross section of the accuracy block is larger than the thickness of the cross section of the formed hole block; the actuating element connected with the fixed end of the vibrating plate drives the vibrating plate to generate deformation under the action of the electric field, so that the fluid stored in the cavity is activated to be sprayed from the spraying holes.
Description
Technical field
The invention relates to a kind of actuating structure, refer to a kind of fluid spray actuating structure that is applicable to sprayer especially.
Background technology
No matter be that medicine is given birth to industry such as skill, computer technology, printing, the energy in various technical fields at present, product all develops towards sophistication and microminiaturization direction, and therefore being used for the structure that fluid ejects in the sprayer product wherein is its key technology.Therefore, how to innovate spray structure, break through its technical bottleneck and reach cost of manufacture cheap, be fit to volume production and can promote activate usefulness, be the major subjects that the required breakthrough of present this spray actuating structure industry develops.
See also Fig. 1 (a), it is the schematic diagram of the actuating structure of existing sprayer, as shown in the figure, the actuating structure 10 of existing sprayer comprises substrate 11, oscillating plate 12 and actuation element 13, wherein 11 of two substrates form a cavity 14, be mainly used to storaging liquid, and oscillating plate 12 has a plurality of spray orifices 121, and its two ends are fixedly arranged on the substrate 11 and one side closed with cavity 14, as for, oscillating plate 12 and the side of substrate 11 stiff ends are connected one respectively and activate element 13, and actuation element 13 is one to present the structure of hollow circular ring form, and its polarised direction is a thickness direction.
The actuating structure 10 of existing sprayer can apply an electric field by the thickness direction at actuation element 13, to impel actuation element 13 to produce a cross-direction shrinkage amount, and then make oscillating plate 12 interlocks of connection and follow deformation, because the piezoelectricity amount of contraction that actuation element 13 produces and the deflection of oscillating plate 12 have difference, the actuating structure 10 that causes whole sprayer is produced the flowing mode of doing of crooked (bend) form, be the crooked deformation of the direction of arrow indication dotted line of Fig. 1 (a) label A, oscillating plate 12 will produce up-down vibration because of bending shape.
When the operating frequency of actuation element 13 just is integrally-built resonant frequency, this moment, near spray orifice 121 meetings of oscillating plate 12 produced great speed, the inertia force of drop that makes its spray orifice 121 is during greater than the surface tension of spray orifice 121, the fine droplet body will be by spray orifice 121 ejections, to reach the purpose of fluid spray.
See also Fig. 1 (b), it is the schematic diagram of the actuating structure of at present common sprayer, its oscillating plate 12 all adopts the about 20 μ m of thickness～slim film of 30 μ m to make the less spray orifice of relative depth 121 forms, thus, spray orifice 121 forms can intensify the liquid of inflow cavity 14 easily and spray with superfine molecule particle concussion, but the slim oscillating plate 12 of this kind very easily causes damage to re-use under the operating position of long-term crooked deformation, will have a strong impact on its service life.
Please consult Fig. 1 (c) again, it is the schematic diagram that develops the actuating structure of another the existing sprayer that for the shortcoming of improving Fig. 1 (b), as shown in the figure, the mode of improvement is the thickness increase with oscillating plate 12, so that oscillating plate 12 is not fragile and can increase its service life, though can reach the oscillating plate problem in 12 service lifes that solves really in the mode that increases oscillating plate 12 thickness, relative meeting causes the degree of depth of spray orifice 121 to deepen, the contact area that drop 15 is adhered at spray orifice 121 places of oscillating plate 12 becomes big, make drop 15 attaching surface tension force also big (shown in Fig. 1 (d)), cause oscillating plate 12 to intensify liquid and weaken relatively, and influence the usefulness of the sprayer atomization of liquid with the kinetic energy of superfine molecule particle concussion ejection.
Therefore, how to develop a kind of fluid spray actuating structure that overcomes above-mentioned prior art disappearance, real in pressing for the problem of solution at present.
Summary of the invention
Main purpose of the present invention is to provide a kind of fluid spray actuating structure, it is a spacer block by the shaped hole piece and between constituting in the oscillating plate between two adjacent spray orifices by the extended boss of shaped hole piece one, and its cross-sectional width of shaped hole piece in the spacer block is greater than boss, the section thickness of boss then is higher than the shaped hole piece, make spacer block form a convex block, and by actuation element under effect of electric field, drive the oscillating plate that is connected with actuation element and produce deformation, the fluid that is stored in the cavity is intensified and spray from a plurality of spray orifices, actuating structure with solution traditional spray device is too thick because of oscillating plate thickness, weaken relatively with the kinetic energy of superfine molecule particle concussion ejection and cause oscillating plate to intensify fluid, and influence the usefulness of sprayer fluid atomizing.
For reaching above-mentioned purpose, of the present invention one implements the sample attitude for a kind of fluid spray actuating structure is provided than broad sense, is applicable to sprayer, it atomizes the fluid ejection under electric field action, this fluid spray actuating structure comprises: substrate, and it forms cavity, in order to store fluid; Oscillating plate, its both sides have respectively and have a plurality of spray orifices between stiff end and the stiff end, stiff end is fixedly arranged on the substrate respectively, side with closed cavity, form a spacer block between two adjacent spray orifices, and spacer block has a shaped hole piece and by the extended boss of shaped hole piece institute one, wherein the cross-sectional width of shaped hole piece comes down to the cross-sectional width greater than boss, and the section thickness of boss comes down to be higher than the section thickness of shaped hole piece; And a plurality of actuation elements, being connected on the stiff end of oscillating plate, it drives oscillating plate and produces deformation under electric field action, the fluid that is stored in the cavity is intensified and sprays from a plurality of spray orifices.
According to conception of the present invention, wherein the section thickness of shaped hole piece is essentially 20 μ m～30 μ m.
According to conception of the present invention, wherein the cross-sectional width of boss be essentially the shaped hole piece cross-sectional width 1/3rd.
According to conception of the present invention, wherein the section thickness of stiff end is essentially the summation of the section thickness of shaped hole piece and boss.
According to conception of the present invention, wherein actuation element is made of a piezoelectric.
According to conception of the present invention, wherein the direction of electric field is parallel with the polarised direction of actuation element.
According to conception of the present invention, wherein spacer block is essentially a convex block.
For reaching above-mentioned purpose, of the present invention another implemented the sample attitude for a kind of fluid spray structure is provided than broad sense, and it comprises: substrate; Oscillating plate, its both sides have respectively and have a plurality of spray orifices between stiff end and the stiff end, and stiff end is fixedly arranged on respectively on the substrate, with a side of closed cavity, form the convex block between two adjacent spray orifices; And actuation element, be connected on the stiff end of oscillating plate, drive oscillating plate and produce deformation.
For reaching above-mentioned purpose, of the present inventionly anotherly implement the sample attitude for a kind of fluid spray actuating structure is provided than broad sense, be applicable to sprayer, it atomizes the fluid ejection under electric field action, this fluid spray actuating structure comprises: substrate, and it forms cavity, in order to store fluid; Oscillating plate, its both sides have respectively and have a plurality of spray orifices between stiff end and the stiff end, and stiff end is fixedly arranged on respectively on the substrate, with a side of closed cavity, form spacer block between two adjacent spray orifices, and spacer block are the convex block; And actuation element, being connected on the stiff end of oscillating plate, it drives oscillating plate and produces deformation under electric field action, the fluid that is stored in the cavity is intensified and sprays from a plurality of spray orifices.
Description of drawings
Fig. 1 (a) is the schematic diagram of the actuating structure of existing sprayer.
Fig. 1 (b) is the schematic diagram of the actuating structure of another existing sprayer.
Fig. 1 (c) is the schematic diagram that develops the actuating structure of another the existing sprayer that in order to the shortcoming that overcomes Fig. 1 (b).
Fig. 1 (d) is the view of drop between spray orifice that the B place scope of Fig. 1 (c) is amplified.
Fig. 2 (a) is the schematic diagram of the fluid spray actuating structure of preferred embodiment of the present invention.
Fig. 2 (b) is the structural representation of the spacer block shown in Fig. 2 (a).
Fig. 2 (c) is the polarised direction of the actuation element shown in Fig. 2 (a) and the view that applies an electric field.
Fig. 2 (d) is the deformation schematic diagram of the actuation element shown in Fig. 2 (a).
Fig. 2 (e) is the view of drop between spray orifice that the C place scope of Fig. 2 (a) is amplified.
The specific embodiment
Some exemplary embodiments that embody characteristics of the present invention and advantage will be described in detail in the explanation of back segment.Be understood that the present invention can have various variations on different aspects, its neither departing from the scope of the present invention, and explanation wherein and diagram, be when the usefulness that explain in itself, but not in order to restriction the present invention.
See also Fig. 2 (a), it is the structural representation of the fluid spray actuating structure of preferred embodiment of the present invention, as shown in the figure, fluid spray actuating structure 20 of the present invention is given birth to the sprayer that skill is used applicable to medicine, fluid spray actuating structure 20 is mainly by a substrate 21, one oscillating plate 22 and one activates element 23 and constitutes, wherein 21 of substrates form a cavity 24, be mainly used to store fluid, and oscillating plate 22 is arranged between substrate 21 and the actuation element 23, and its dual-side all has a stiff end 221, be fixedly arranged on respectively on the substrate 21, can be used to side sealing with cavity 24,221 of two stiff ends at oscillating plate 22 have a plurality of spray orifices 222, and 222 of two adjacent spray orifices form a plurality of spacer blocks 223 (shown in Fig. 2 (b)), the convex block that each spacer block 223 mainly is made of shaped hole piece 2231 and boss 2232, boss 2232 is arranged at shaped hole piece 2231 tops and both are made in integrated mode, be that boss 2232 is to be extended by 2231 one of shaped hole piece, driven by actuation element 23 and can strengthen the supporting role of shaped hole piece 2231 during crooked deformation at oscillating plate 22 by boss 2232, and the cross-sectional width L1 of shaped hole piece 2231 is the cross-sectional width L2 greater than boss 2232, and the section thickness T2 of boss 2232 is the section thickness T1 that are higher than shaped hole piece 2231.
In present embodiment, the section thickness T1 of shaped hole piece 2231 can be 20 μ m～30 μ m, and the cross-sectional width L2 of boss 2232 be about shaped hole piece 2231 cross-sectional width L1 1/3rd, and the summation of the section thickness T2 of the section thickness T1 of shaped hole piece 2231 and reinforced hole piece 2231 is the section thickness T3 that is equal to the stiff end 221 of oscillating plate 225.
As for, 23 of a plurality of actuation elements are connected on the stiff end 221 of oscillating plate 22, and in some embodiment, and actuation element 23 is to be good with a structure that presents the hollow circular ring form.
Please consult Fig. 2 (c) again, it is for the polarised direction of actuation element and apply the view of electric field, as shown in the figure, actuation element 23 of the present invention can be made of a piezoelectric, and its polarised direction is the thickness direction of actuation element 23, i.e. the direction of arrow of Fig. 2 (c) label D indication, side at the thickness direction of actuation element 23 has a signal electrode 25 in addition, can be positive electrode, relative opposite side then has an earth electrode 26, can be negative electrode.
When a voltage acts on the both sides signal electrode 25 of actuation element 23 and earth electrode 26, can produce the electric field that a direction makes progress, promptly as the direction of arrow of Fig. 2 (c) label E indication, because the polarised direction of direction of an electric field and actuation element 23 is parallel to each other, so actuation element 23 can produce a cross-direction shrinkage amount under this effect of electric field, the i.e. direction deformation of X and Y direction indication shown in Fig. 2 (c), because of actuation element 23 is to be connected with the stiff end 221 of oscillating plate 22, therefore and the stiff end 221 of oscillating plate 22 is fixed on the substrate 21, will make oscillating plate 22 interlocks that are connected with actuation element 23 and follow deformation.
Because, the piezoelectricity that actuation element 23 produces shrinks and the deflection of oscillating plate 22 has difference, will cause fluid spray actuating structure 20 to produce the flowing mode of doing of crooked (bend) form, be the crooked deformation of the direction of arrow indication dotted line of Fig. 2 (d) label F, oscillating plate 22 will produce up-down vibration because of bending shape thus, when the operating frequency of actuation element 23 just is integrally-built resonant frequency, this moment, near spray orifice 222 meetings of oscillating plate 22 produced great speed, the inertia force of drop that makes its spray orifice 222 is during greater than the surface tension of spray orifice 222, fine droplet 27 will be by spray orifice 222 ejections (shown in Fig. 2 (e)), spray drop 27 particle diameter can control 5 μ m with interior or little to 1 μ m, and the drop size that can keep its ejection is even, to reach the purpose of fluid spray.
Because the cross-sectional width L1 of the shaped hole piece 2231 of spacer block 223 of the present invention is the cross-sectional width L2 greater than boss 2232, and the section thickness T2 of boss 2232 is the section thickness T1 that are higher than shaped hole piece 2231, therefore shaped hole piece 2231 is formed in the mode that thin type is handled as can be known, its section thickness T1 can be 20 μ m～30 μ m, but this does not exceed, spray orifice 222 degree of depth that constituted on the plate face of oscillating plate 22 also have the film morphology characteristic thus, it is less to make drop be attached to the surface tension of spray orifice 222, please consult Fig. 2 (e) and Fig. 1 (d) again, come comparison with regard to the present invention and existing structure in the surface tension that spray orifice adheres to drop, can find out that the area that spray orifice 222 of the present invention adheres to drop 27 compared to spray orifice 121 places shown in Fig. 1 (d) is less, drop 27 attaching surface tension force are also little than the drop 15 shown in Fig. 1 (d) relatively, therefore spray orifice 222 forms of the present invention can increase the kinetic energy that allows liquid spray with superfine molecule particle vibration, can intensify the fluid of inflow cavity 24 easily and shake ejection, to reach best spray actuating usefulness with superfine molecule particle.
In sum, fluid spray actuating structure of the present invention is to extend a boss by one on the shaped hole piece of spacer block, become a convex block, it can strengthen the supporting role of shaped hole piece, and the shaped hole piece is adopted slim form design, make the spray orifice degree of depth of oscillating plate also have the film morphology characteristic, it is less to make drop be attached to the surface tension of spray orifice, can intensify the liquid of inflow cavity easily and shake ejection with superfine molecule particle, and under the long-term crooked deformation operating position of oscillating plate, more not fragile, can increase the benefit in service life, have industry applications and progressive.Therefore, fluid spray actuating structure of the present invention has the value of industry.
Claims (6)
1. a fluid spray actuating structure is applicable to a sprayer, and with fluid ejection atomizing, it comprises under electric field action for it:
One substrate, it forms a cavity, in order to store this fluid;
One oscillating plate, its both sides have respectively between a stiff end and this stiff end and have a plurality of spray orifices, this stiff end is fixedly arranged on respectively on this substrate, to seal a side of this cavity, form a spacer block between two adjacent these spray orifices, and this spacer block has a shaped hole piece and reaches by the extended boss of this shaped hole piece institute one, wherein the cross-sectional width of this boss be essentially this shaped hole piece cross-sectional width 1/3rd, the section thickness of this boss comes down to be higher than the section thickness of this shaped hole piece; And
One activates element, is connected on this stiff end of this oscillating plate, and it drives this oscillating plate and produce deformation under this electric field action, this fluid that is stored in this cavity is intensified and sprays from these a plurality of spray orifices.
2. fluid spray actuating structure according to claim 1 is characterized in that the section thickness of this shaped hole piece is essentially 20 μ m～30 μ m.
3. fluid spray actuating structure according to claim 1 is characterized in that the section thickness of this stiff end is essentially the summation of the section thickness of this shaped hole piece and this boss.
4. fluid spray according to claim 1 causes structure, it is characterized in that this actuation element is made of a piezoelectric.
5. fluid spray actuating structure according to claim 1, the direction that it is characterized in that this electric field are parallel with the polarised direction of this actuation element.
6. fluid spray actuating structure according to claim 1 is characterized in that this spacer block is essentially a convex block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101063525A CN101306412B (en) | 2007-05-17 | 2007-05-17 | Fluid spray actuating structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101063525A CN101306412B (en) | 2007-05-17 | 2007-05-17 | Fluid spray actuating structure |
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| Publication Number | Publication Date |
|---|---|
| CN101306412A CN101306412A (en) | 2008-11-19 |
| CN101306412B true CN101306412B (en) | 2011-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2007101063525A Active CN101306412B (en) | 2007-05-17 | 2007-05-17 | Fluid spray actuating structure |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2016179828A1 (en) * | 2015-05-14 | 2016-11-17 | 惠州市吉瑞科技有限公司深圳分公司 | Electronic cigarette |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5152456A (en) * | 1989-12-12 | 1992-10-06 | Bespak, Plc | Dispensing apparatus having a perforate outlet member and a vibrating device |
| US6712455B2 (en) * | 2001-03-30 | 2004-03-30 | Philip Morris Incorporated | Piezoelectrically driven printhead array |
| CN1586653A (en) * | 2004-09-03 | 2005-03-02 | 清华大学 | Piezoelectric driven array micro spray and its processing method |
| CN1853798A (en) * | 2005-04-21 | 2006-11-01 | 财团法人工业技术研究院 | Spray generator |
| CN1916227A (en) * | 2005-08-19 | 2007-02-21 | 南茂科技股份有限公司 | Method for manufacturing jet orifice piece |
| CN1923377A (en) * | 2005-08-30 | 2007-03-07 | 财团法人工业技术研究院 | Atomizer structure |
-
2007
- 2007-05-17 CN CN2007101063525A patent/CN101306412B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5152456A (en) * | 1989-12-12 | 1992-10-06 | Bespak, Plc | Dispensing apparatus having a perforate outlet member and a vibrating device |
| US6712455B2 (en) * | 2001-03-30 | 2004-03-30 | Philip Morris Incorporated | Piezoelectrically driven printhead array |
| CN1586653A (en) * | 2004-09-03 | 2005-03-02 | 清华大学 | Piezoelectric driven array micro spray and its processing method |
| CN1853798A (en) * | 2005-04-21 | 2006-11-01 | 财团法人工业技术研究院 | Spray generator |
| CN1916227A (en) * | 2005-08-19 | 2007-02-21 | 南茂科技股份有限公司 | Method for manufacturing jet orifice piece |
| CN1923377A (en) * | 2005-08-30 | 2007-03-07 | 财团法人工业技术研究院 | Atomizer structure |
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| Publication number | Publication date |
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| CN101306412A (en) | 2008-11-19 |
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