CN102553767A - Piezoelectric ceramic ultrasonic atomizing sheet - Google Patents
Piezoelectric ceramic ultrasonic atomizing sheet Download PDFInfo
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- CN102553767A CN102553767A CN2011104132345A CN201110413234A CN102553767A CN 102553767 A CN102553767 A CN 102553767A CN 2011104132345 A CN2011104132345 A CN 2011104132345A CN 201110413234 A CN201110413234 A CN 201110413234A CN 102553767 A CN102553767 A CN 102553767A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
- B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
- B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
- B05B17/0607—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers
- B05B17/0638—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers spray being produced by discharging the liquid or other fluent material through a plate comprising a plurality of orifices
- B05B17/0646—Vibrating plates, i.e. plates being directly subjected to the vibrations, e.g. having a piezoelectric transducer attached thereto
Abstract
The invention discloses a piezoelectric ceramic ultrasonic atomizing sheet, comprising a piezoelectric ceramic sheet group and a metal sheet group, wherein the piezoelectric ceramic sheet group consists of at least two piezoelectric ceramic sheets, and the metal sheet group consists of at least one metal sheet. In the piezoelectric ceramic sheet group, through holes are arranged on the piezoelectric ceramic sheets; the piezoelectric ceramic sheets and the metal sheets are mutually crossed and overlapped; and the metal sheets cover the through holes entirely. The piezoelectric ceramic ultrasonic atomizing sheet disclosed by the invention is in a multilayer clamping structure, the metal sheets and the piezoelectric ceramic sheets have high bonding strength and are difficult to fall of, so that the metal sheets of one atomizing sheet are combined in various vibration modes, namely axial bending vibration and radial stretching vibration, is realized. Therefore, the vibration modes of the atomizing sheet with the structure are increased and the atomizing effect range of the atomizing sheet is widened.
Description
Technical field
This patent relates to a kind of atomizing piece that liquid is atomized of being used for, and relates in particular to a kind of ultrasonic atomizatio sheet that adopts piezoceramic material.
Background technology
Liquid can atomize it through the effect of piezoelectric ultrasonic atomization sheet vibration, and this is well-known technology, promptly atomizing piece through high frequency oscillation with the fluid molecule structure break up form vaporific.
In the prior art; The piezoelectric ultrasonic atomization sheet mainly is the piezoelectric ceramic ultrasonic atomizing piece that adopts single-layer metal double-layer ceramic sheet sandwich and two kinds of forms of single-layer metal layered ceramic sheet; All be that plane vibration (axial bending vibration and the radial expansion vibration) pattern that adopts piezoelectric ceramic piece drives the metallic membrane vibration and makes the atomization of liquid; For example the patent No. is 200320110900.9, name is called the atomizing piece that the Chinese utility model patent of " excess sound pressure electrospray sheet " discloses, and the patent No. is 201020541627.5, name is called the atomizing piece that the Chinese utility model patent of " ultrasonic atomization transducing sheet " discloses.The atomizing piece of this structure can not reach even, the thinning effect of atomizing well, and atomizing piece sheet metal vibration mode is single.
The piezoelectric ceramics of atomizing piece use at present has two kinds of type of drive, i.e. radial drive mode and axial type of drive.The used sheet metal of radial drive mode must be with protruding cap, could the radial vibration mode of piezoelectric ceramic piece be converted into the axial vibration pattern like this, thereby makes liquid produce atomizing; Axially type of drive directly can produce the required axial vibration pattern of atomizing with unilateral sheet metal.Because radial drive pattern energy conversion efficiency is low, and since the micropore on the metallic membrane have to be controlled at very little scope, so difficulty of processing is higher, and micropore easy blocking in use.
Summary of the invention
Technical problem
The technical problem that the present invention will solve provides a kind of piezoelectric ceramic ultrasonic atomizing piece that adopts sandwich type structural, is the multilayer method of clamping between sheet metal and the piezoelectric ceramic piece, has stronger structural strength.
Technical scheme
In order to solve above-mentioned technical problem, piezoelectric ceramic ultrasonic atomizing piece of the present invention comprises one group of piezoelectric ceramic piece group and one group of sheet metal group of being made up of a slice sheet metal at least of being made up of two happy ceramics of piezoelectricity at least; In the described piezoelectric ceramic piece group, each piezoelectric ceramic piece is provided with through hole; It is stacked that described piezoelectric ceramic piece and sheet metal intersect each other, and sheet metal covers described through hole fully.In the technical scheme of the present invention; Described piezoelectric ceramic piece and sheet metal intersect the stacked cross arrangement each other between each piezoelectric ceramic piece and the sheet metal that is meant each other, and be promptly stacked according to the arrangement mode of a slice piezoelectric ceramic piece, a slice sheet metal, a slice piezoelectric ceramic piece, a slice sheet metal; Described through hole can be a manhole, also can be other shapes applicatory.In order to realize the function of atomizing piece atomized liquid, sheet metal need cover the throughhole portions of piezoelectric ceramic piece fully, and correspondingly, the part of the covering piezoelectric ceramic piece through hole of sheet metal is processed with a large amount of orifices.
Further; In the technical scheme of the present invention; The number of piezoelectric ceramic piece and the number of sheet metal can be selected according to actual needs, are 2 like the piezoelectric ceramic piece number, and the sheet metal number is 2; The piezoelectric ceramic piece number is at least 3 in the perhaps described piezoelectric ceramic piece group, and the sheet metal number is at least 2 in the described sheet metal group.In the technical scheme of the present invention; The orifice that is provided with on each sheet metal can adopt manhole; Also can adopt the tapered through hole in cross section, and its size by greatly to minispread when order (sheet metal from the bottom to top), promptly when sheet metal be 2 when above; In order to reach better atomizing effect; The aperture of orifice is pressed the order that sheet metal (go up to down order) arranges and is arranged to big from little successively on each sheet metal, from piezoelectric ceramic piece and the stacked direction of sheet metal, on the last sheet metal aperture of orifice little under the aperture of orifice on the sheet metal.
Usually, the through hole of each piezoelectric ceramic piece residing position in the orientation of each piezoelectric ceramic piece is identical, promptly when not considering sheet metal to the covering factor of each through hole, the mutual perforation between each through hole.
Consider the common shape of atomizing piece, in the atomizing piece of technical scheme of the present invention, described piezoelectric ceramic piece and sheet metal cross section are all rounded.The external diameter of sheet metal is less than or equal to or greater than the external diameter of piezoelectric ceramic piece.
Be connected with the extraneous control circuit of atomizing piece for ease, described sheet metal edge is provided with the pad that supplies wire bonds fixing.
Further, described sheet metal can adopt various structure according to actual needs.When the part of the covering through hole of described sheet metal is writing board shape is that sheet metal integral body is when being writing board shape; Can realize the axial bending vibration of sheet metal; When the part of the covering through hole of described sheet metal is protruding cap shaped; Can realize the radial expansion vibration of sheet metal, to sheet metal shape and structure Design, can realize from different direction of vibration, liquid being atomized through this.Described sheet metal is preferential whole rounded, and its cross section is a rectangle, is the disk shape.
Further; In the described sheet metal group; Have at least the part of the covering through hole of a sheet metal to be writing board shape, and have at least the part of the covering through hole of a sheet metal to be protruding cap shaped, can realize that sheet metal flexural vibrations and axial vibration intercouple; But overcome the only defective of single vibration of existing atomizing piece, and then realize better atomizing effect.
In the technical scheme of the present invention,, can select the different working state for the piezoelectric ceramic piece and the sheet metal of varying number combination:
When each piezoelectric ceramic piece is connected in series, and the part writing board shape of each sheet metal covering piezoelectric ceramic piece through hole, when each potsherd opposite face polarity is identical, can realize the axial bending vibration.
When each piezoelectric ceramic piece is connected in series, and each sheet metal part of covering the piezoelectric ceramic piece through hole at this moment, if potsherd opposite face polarity is opposite, realizes the radial expansion vibration when being protruding cap shaped.
When each piezoelectric ceramic piece is connected in parallel; The sheet metal edge that be in the middle of each potsherd this moment stretches out piezoelectric ceramic piece; And the part that each sheet metal covers the piezoelectric ceramic piece through hole is protruding cap shaped, when each potsherd opposite face polarity is identical, realizes the radial expansion vibration.
When each piezoelectric ceramic piece is connected in parallel, be in the middle sheet metal edge of each potsherd this moment and stretch out piezoelectric ceramic piece, and the part writing board shape of each sheet metal covering piezoelectric ceramic piece through hole, when each potsherd opposite face polarity is opposite, realize the axial bending vibration.
Also can select the different driving connected mode, adjust each potsherd opposite face polarity, adopt the combined use of difform sheet metal, but then implementation part sheet metal axial bending vibration, part metals sheet radial expansion vibration.
When piezoelectric ceramic piece and sheet metal number all were 2, then sheet metal had only axially curved shake or two kinds of vibration modes of radial expansion vibration are selected, and promptly two kinds of vibration modes can only be selected one of which, the situation of two kinds of vibration modes couplings do not occur.
Piezoelectric ceramic ultrasonic atomizing piece of the present invention is based on the dither of sheet metal, and with liquid such as water atomization, but its operation principle is different from atomizing piece of the prior art.With the atomizing object is that water is example, its at first in the first area of first piezoelectric ceramic piece and first sheet metal formation dither through sheet metal liquid is atomized for the first time, obtain the bigger water smoke of particle; Then; First atomizing gas in the first area gets into the second area that forms at second piezoelectric ceramic piece that is arranged in order with first piezoelectric ceramic piece and first sheet metal and second sheet metal, by atomizing for the second time, thereby obtains a less water smoke of material; Like the littler water smoke of a needs material; Then carry out the one or many atomizing again, like this, can obtain desirable atomizing effect.
Beneficial effect
Piezoelectric ceramic ultrasonic atomizing piece of the present invention adopts the multilayer clamp structure; The bond strength of sheet metal and piezoelectric ceramic piece is high; Difficult drop-off; The vibration of unitary piece of metal sheet can adopt the vibration of relatively low energy to reach atomizing effect preferably, but all extensive uses in fields such as medical treatment, beauty treatment, environmental treatment, and long service life; In the time of can adopting beam mode again, sheet metal can adopt the plane sheet metal, and processing is simple, and cost reduces.Owing to adopt stacking of multi-disc potsherd; Can also realize preferably that an atomizing piece sheet metal adopts multiple vibration mode to combine; Be the combination of axial bending vibration and radial expansion vibration, increased the vibration mode of this structure atomizing piece, widened the atomizing effect scope of atomizing piece.
Figure of description
Fig. 1 is an atomizer structure plane of the present invention;
Fig. 2 is the atomizer plane of the sheet metal tape welding dish of one embodiment of the present of invention;
Fig. 3 is the atomizer profile of planar shaped (greater than piezoelectric ceramic piece) for sheet metal;
Fig. 4 is the atomizer profile of protruding hat for sheet metal;
The axially curved atomizer structure profile that shakes when Fig. 5 is series connection;
The axially curved atomizer structure profile that shakes when Fig. 6 is parallel connection;
The atomizer structure profile of radial expansion vibration when Fig. 7 is series connection;
The atomizer structure profile of radial expansion vibration when Fig. 8 is parallel connection;
Fig. 9 be one embodiment of the present of invention an axial vibration (on), the atomizer profile of radial expansion vibration (descend) combination.
The specific embodiment
Embodiment one:
Like Fig. 1, Fig. 2, shown in Figure 3, the piezoelectric ceramic ultrasonic atomizing piece of present embodiment comprise one group by 3 piezoelectric ceramic pieces promptly the piezoelectric ceramic piece group 1 formed of the happy ceramics of first piezoelectricity 11, second piezoelectric ceramic piece 12, the 3rd piezoelectric ceramic piece 13 and one group are the sheet metal group 2 that first sheet metal 21 and second metal unilateral 22 are formed by 2 sheet metals; In the described piezoelectric ceramic piece group 1, first piezoelectric ceramic piece is provided with first through hole, 14, the second piezoelectric ceramic pieces and is provided with second through hole 14 ', and the 3rd piezoelectric ceramic piece is provided with third through-hole 14 ' '; It is stacked that described piezoelectric ceramic piece and sheet metal intersect each other, promptly connects according to arranging from last order to first piezoelectric ceramic piece 11, first sheet metal 21, second piezoelectric ceramic piece 12, second sheet metal 22, the 3rd piezoelectric ceramic piece 13; First sheet metal 21 covers first through hole 14 and second through hole 14 ' fully; The position that second sheet metal 21 covers second through hole 14 ' and third through-hole 14 ' fully ', first through hole 14, second through hole 14 ' and third through-hole 14 ' ' in the piezoelectric ceramic piece orientation is identical.Sheet material wherein is a copper, and its integral body is writing board shape.
As shown in Figure 3, first sheet metal 21 is provided with a large amount of first orifices 211; Second sheet metal 22 is provided with a large amount of second orifices 221, and the aperture of first orifice 211 only illustrates an orifice less than second orifice 221 among this figure.Said orifice is a conical through-hole, and its bigger opening one end gets into the direction of piezoelectric ceramic ultrasonic atomizing piece towards liquid; The direction that gets into piezoelectric ceramic piece with liquid is consistent, and the orifice of each sheet metal is descending successively, promptly becomes successively greatly in the hole from top to bottom by sheet metal, diminishes successively from bottom to up.
Like Fig. 1, shown in 2, each piezoelectric ceramic piece is all rounded with each sheet metal middle section; As shown in Figure 2, the external diameter of sheet metal is greater than the external diameter of piezoelectric ceramic piece, and the sheet metal edge is provided with the pad 3 that supplies wire bonds fixing; Sheet metal is provided with first orifice 211.
As shown in Figure 5, when each piezoelectric ceramic piece was in series connection, first piezoelectric ceramic piece 11 was identical with the opposite face polarity of second piezoelectric ceramic piece 12, and second piezoelectric ceramic piece 12 is identical with the opposite face polarity of the 3rd piezoelectric ceramic piece 13, realized the axial bending vibration.
As shown in Figure 6; When each piezoelectric ceramic piece is in parallel connection; First sheet metal 21 and second metal 22 stretch out the edge of piezoelectric ceramic piece; The opposite face polarity of first piezoelectric ceramic piece 11 and second piezoelectric ceramic piece 12 is opposite, and the opposite face polarity of second piezoelectric ceramic piece 12 and the 3rd piezoelectric ceramic piece 13 is opposite, realizes the radial expansion vibration.
When the piezoelectric ceramic ultrasonic atomizing piece of present embodiment is worked; With the atomizing object is that water is example; Second sheet metal 22 receives the driving and generating dither, and water by first atomizing, obtains the bigger atomizing gas of particle in first area 8; The atomizing gas gets in the second area 9 that is formed by first sheet metal 21 and second sheet metal 22; The dither of first sheet metal 21 carries out the atomizing second time to the atomizing gas that gets into, because first orifice, 211 external diameters of first sheet metal 21, therefore can and then obtain a less atomizing gas of material less than second orifice, 221 external diameters of second sheet metal 22.Further the atomizing gas that obtains is handled like needs, the number that then increases sheet metal and piezoelectric ceramic piece gets final product, and the orifice of sheet metal has littler external diameter.
Embodiment two:
As shown in Figure 4, the piezoelectric ceramic ultrasonic atomizing piece of present embodiment comprise one group by 3 piezoelectric ceramic pieces promptly the piezoelectric ceramic piece group formed of first piezoelectric ceramic piece 41, second piezoelectric ceramic piece 42, the 3rd piezoelectric ceramic piece 43 and one group are the sheet metal group that first sheet metal 51 and second metal unilateral 52 are formed by 2 sheet metals; First piezoelectric ceramic piece is provided with first through hole, 411, the second piezoelectric ceramic pieces and is provided with second through hole, 421, the three piezoelectric ceramic pieces and is provided with third through-hole 431; It is stacked that described piezoelectric ceramic piece and sheet metal intersect each other, promptly connects according to arranging from last order to the happy ceramics of first piezoelectricity 41, first sheet metal 51, second piezoelectric ceramic piece 42, second sheet metal 52, the happy ceramics 43 of the 3rd piezoelectricity; First sheet metal 51 covers first through hole 411 fully and second through hole, 421, the second sheet metals 52 cover second through hole 421 and third through-hole 431 fully, and each through hole is identical in the residing position of piezoelectric ceramic piece orientation.First sheet metal 51 is provided with i.e. first orifice 61 of a large amount of first orifices; Second sheet metal 52 is provided with a large amount of second orifices 71, each orifice only is shown among the figure, and the aperture of first orifice 61 is less than the aperture of second orifice 71.
Covering first through hole 411 of first sheet metal 51, the part of second through hole 421 are protruding cap shaped; Towards second piezoelectric ceramic piece, 42 convexities; Correspondingly, the part of the covering of second sheet metal 52 second through hole 421, third through-hole 431 is protruding cap shaped, towards the 3rd piezoelectric ceramic piece 43 convexities.
As shown in Figure 7, when each piezoelectric ceramic piece was in series connection, first piezoelectric ceramic piece 41 was identical with the opposite face polarity of second piezoelectric ceramic piece 42, and second piezoelectric ceramic piece 42 is identical with the opposite face polarity of the 3rd piezoelectric ceramic piece 43, realized the axial bending vibration.
As shown in Figure 8; When each piezoelectric ceramic piece is in parallel connection; First sheet metal 51 and second metal 52 stretch out the edge of piezoelectric ceramic piece; The opposite face polarity of first piezoelectric ceramic piece 41 and second piezoelectric ceramic piece 42 is opposite, and the opposite face polarity of second piezoelectric ceramic piece 42 and the 3rd piezoelectric ceramic piece 43 is opposite, realizes the radial expansion vibration.
The piezoelectric ceramic ultrasonic atomizing piece course of work of present embodiment is identical with embodiment one, but owing to adopted the sheet metal with protruding cap shaped, it can carry out radial vibration, thereby produces different atomizing effects.
Embodiment three:
As shown in Figure 9, another embodiment of the present invention is provided, it adopts and is similar to embodiment one, implements two structure, also adopts three piezoelectric ceramic pieces and two sheet metals, and each piezoelectric ceramic piece is arranged in order with each sheet metal is interlaced.Wherein, first sheet metal 8 is provided with a large amount of first orifices 81, and it covers the piezoelectric ceramics throughhole portions is tabular; Second sheet metal 9 is provided with a large amount of second orifices 91, and its part that covers the piezoelectric ceramics through hole is protruding cap shaped.Present embodiment can realize that sheet metal flexural vibrations and axial vibration intercouple, but overcomes the only defective of single vibration of existing atomizing piece, and then realizes better atomizing effect.
Claims (12)
1. a piezoelectric ceramic ultrasonic atomizing piece is characterized in that, this piezoelectric ceramic ultrasonic atomizing piece comprises one group of piezoelectric ceramic piece group (1) and one group of sheet metal group (2) of being made up of a slice sheet metal at least of being made up of two piezoelectric ceramic pieces at least; In the described piezoelectric ceramic piece group (1), each piezoelectric ceramic piece is provided with through hole (14); It is stacked that described piezoelectric ceramic piece and sheet metal intersect each other, and sheet metal covers described through hole (14) fully, and the zone that sheet metal covers through hole (14) is provided with at least one orifice (211,221).
2. piezoelectric ceramic ultrasonic atomizing piece as claimed in claim 1 is characterized in that, the piezoelectric ceramic piece number is at least 3 in the described piezoelectric ceramic piece group (1), and the sheet metal number is at least 2 in the described sheet metal group (2).
3. according to claim 1 or claim 2 piezoelectric ceramic ultrasonic atomizing piece is characterized in that described orifice (211,212) is a bellmouth.
4. piezoelectric ceramic ultrasonic atomizing piece as claimed in claim 3 is characterized in that, the order that the size of orifice is arranged according to sheet metal on each sheet metal is successively from greatly to minispread.
5. according to claim 1 or claim 2 piezoelectric ceramic ultrasonic atomizing piece is characterized in that the through hole of each piezoelectric ceramic piece (14) residing position in its orientation is identical.
6. according to claim 1 or claim 2 piezoelectric ceramic ultrasonic atomizing piece is characterized in that described piezoelectric ceramic piece and sheet metal global shape are rounded.
7. piezoelectric ceramic ultrasonic atomizing piece as claimed in claim 6 is characterized in that, the external diameter of sheet metal is less than or equal to the external diameter of piezoelectric ceramic piece.
8. piezoelectric ceramic ultrasonic atomizing piece as claimed in claim 6 is characterized in that the external diameter of piezoelectric ceramic piece is less than the external diameter of sheet metal.
9. piezoelectric ceramic ultrasonic atomizing piece as claimed in claim 8 is characterized in that, described sheet metal edge is provided with pad (3).
10. like claim 7 or 8 or 9 described piezoelectric ceramic ultrasonic atomizing pieces, it is characterized in that the part of the covering through hole (14) of described sheet metal is writing board shape.
11., it is characterized in that the part of the covering through hole (14) of described sheet metal is protruding cap shaped like claim 7 or 8 or 9 described piezoelectric ceramic ultrasonic atomizing pieces.
12. like claim 7 or 8 or 9 described piezoelectric ceramic ultrasonic atomizing pieces; It is characterized in that; In the described sheet metal group (2); Have at least the part of the covering through hole (14) of a sheet metal to be writing board shape, and have at least the part of the covering through hole (14) of a sheet metal to be protruding cap shaped.
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| CN2011104132345A CN102553767A (en) | 2011-12-13 | 2011-12-13 | Piezoelectric ceramic ultrasonic atomizing sheet |
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| CN102896064A (en) * | 2012-10-26 | 2013-01-30 | 南京航空航天大学 | Piezoelectric ceramic ultrasonic atomization sheet |
| CN103464330A (en) * | 2013-06-14 | 2013-12-25 | 南京航空航天大学 | Piezoelectric ceramic ultrasonic atomization sheet |
| CN103477966A (en) * | 2013-09-13 | 2014-01-01 | 江苏大学 | Intelligent intermediate-frequency ultrasonic atomizing cultivation machine |
| CN103852621A (en) * | 2012-12-06 | 2014-06-11 | 周霆 | Ultrasonic generator working current reading method and circuit |
| CN104621082A (en) * | 2015-01-26 | 2015-05-20 | 华南农业大学 | Standing wave resonant piezoelectric mist spraying device and method |
| CN106377821A (en) * | 2016-10-12 | 2017-02-08 | 盐城工学院 | Piezoelectric ceramic atomization device |
| CN106423697A (en) * | 2016-09-27 | 2017-02-22 | 魏凤林 | Ultrasonic atomizer |
| CN107185766A (en) * | 2017-07-31 | 2017-09-22 | 苏州雾联医疗科技有限公司 | A kind of piezoelectric ceramics ultrasound atomizer plate |
| CN107335575A (en) * | 2017-08-14 | 2017-11-10 | 戴承萍 | It is a kind of miniature atomising |
| CN107433245A (en) * | 2017-09-29 | 2017-12-05 | 苏州雾联医疗科技有限公司 | A kind of piezoelectric ceramic atomizer patch |
| CN107433242A (en) * | 2017-07-24 | 2017-12-05 | 苏州雾联医疗科技有限公司 | A kind of piezoelectric ceramic type atomizing piece |
| CN107433243A (en) * | 2017-08-29 | 2017-12-05 | 苏州雾联医疗科技有限公司 | A kind of microporous piezoceramic atomization sheet |
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| CN107823764A (en) * | 2017-09-20 | 2018-03-23 | 戴承萍 | A kind of piezoelectric ceramics ultrasound atomizer plate |
| JP2019521677A (en) * | 2016-06-29 | 2019-08-08 | チャイナ タバコ フーナン インダストリアル カンパニー リミテッド | Cotton-free ultrasonic atomizer and electronic cigarette |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102896064A (en) * | 2012-10-26 | 2013-01-30 | 南京航空航天大学 | Piezoelectric ceramic ultrasonic atomization sheet |
| CN103852621A (en) * | 2012-12-06 | 2014-06-11 | 周霆 | Ultrasonic generator working current reading method and circuit |
| CN103464330A (en) * | 2013-06-14 | 2013-12-25 | 南京航空航天大学 | Piezoelectric ceramic ultrasonic atomization sheet |
| CN103477966A (en) * | 2013-09-13 | 2014-01-01 | 江苏大学 | Intelligent intermediate-frequency ultrasonic atomizing cultivation machine |
| CN104621082A (en) * | 2015-01-26 | 2015-05-20 | 华南农业大学 | Standing wave resonant piezoelectric mist spraying device and method |
| CN104621082B (en) * | 2015-01-26 | 2017-01-18 | 华南农业大学 | Standing wave resonant piezoelectric mist spraying device and method |
| JP2019521677A (en) * | 2016-06-29 | 2019-08-08 | チャイナ タバコ フーナン インダストリアル カンパニー リミテッド | Cotton-free ultrasonic atomizer and electronic cigarette |
| CN106423697A (en) * | 2016-09-27 | 2017-02-22 | 魏凤林 | Ultrasonic atomizer |
| CN106377821A (en) * | 2016-10-12 | 2017-02-08 | 盐城工学院 | Piezoelectric ceramic atomization device |
| CN107433242A (en) * | 2017-07-24 | 2017-12-05 | 苏州雾联医疗科技有限公司 | A kind of piezoelectric ceramic type atomizing piece |
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Application publication date: 20120711 |