CN218737252U

CN218737252U - Atomization device with phonon lattice microstructure

Info

Publication number: CN218737252U
Application number: CN202222404839.4U
Authority: CN
Inventors: 林光榕; 罗景庭; 付琛; 陶然
Original assignee: Huizhou Happy Vaping Technology Ltd
Current assignee: Huizhou Happy Vaping Technology Ltd
Priority date: 2022-09-09
Filing date: 2022-09-09
Publication date: 2023-03-28
Anticipated expiration: 2032-09-09

Abstract

The utility model discloses an atomizing device with phonon dot matrix microstructure, including the piezoelectricity base, interdigital transducer and phonon dot matrix microstructure of setting at the piezoelectricity base surface, the piezoelectricity base includes the piezoelectric wafer material of oxidation blackening, phonon dot matrix microstructure locates the dead ahead of the surface acoustic wave direction of propagation that interdigital transducer sent, phonon dot matrix microstructure includes if dot matrix micro unit and dot matrix microchannel, dot matrix micro unit carries out vertically and horizontal align to grid along the surface acoustic wave direction of propagation, dot matrix micro unit establishes the pit or the boss on salient surface into concave yield piezoelectricity base surface, dot matrix microchannel and dot matrix micro unit constitute by the permeable liquid material, produce the resonance at dot matrix micro unit when surface acoustic wave propagates phonon dot matrix microstructure, the surface of dot matrix micro unit forms the liquid film and further atomizes. The surface acoustic wave atomization device has the beneficial effects that the surface acoustic wave can form resonance on the dot matrix microcell, so that the energy of the surface acoustic wave is coupled into atomized liquid more efficiently.

Description

Atomization device with phonon lattice microstructure

Technical Field

The utility model relates to an atomizing device technical field of atomized liquid, more specifically the utility model relates to an atomizing device with phonon dot matrix microstructure.

Background

The atomizing device can atomize the atomized liquid stored in the atomizing device into aerosol, namely aerosol, steam or smog for a user to inhale. The existing atomizer generally comprises a power supply assembly and an atomizer connected to each other, wherein the power supply assembly is provided with a battery or a power adapter for supplying power to the atomizer, and a control circuit. The application of the atomization device comprises an electronic cigarette, a liquid medicine atomizer, a humidifier and the like, and the atomization liquid comprises electronic cigarette liquid, liquid medicine, herbal essence liquid, other substance dissolving liquid and the like.

At present, in the aspect of application of electronic cigarettes, the electronic cigarette atomization device in the market mainstream mostly takes the electric heating atomization as the main part, and a small number of electronic cigarettes adopt the ultrasonic atomization. The electrothermal atomization is based on a heat conduction principle, an electronic cigarette is triggered to work through an airflow sensor, a mechanical key or a touch key, a circuit is conducted to supply power to a heating wire or a heating sheet (formed by winding nickel-chromium alloy, stainless steel alloy, nickel-200 alloy or titanium alloy), and heated smoke liquid is atomized to form aerosol for a user to inhale. Although the electrothermal atomization has high heat conduction rate and high atomization efficiency, the material and the structural design have many defects, which are mainly shown as follows: (1) The smoking quality and the sensory experience are seriously influenced by the generation of peculiar smell caused by dry burning or carbonization; (2) In the continuous pumping process, the heating component can be continuously heated up to 500-600 ℃, and potential safety risks exist; (3) The smoke liquid is in long-term contact with the heating component, heavy metals are leached and transferred to aerosol, and harmful ingredients such as aldehydes and the like are released by high-temperature pyrolysis, so that health hidden troubles are brought.

In addition, ultrasonic atomization formula electron cigarette utilizes the high-frequency oscillation of transducer to arouse atomizing piece high frequency resonance, and then produces ultrasonic wave directional pressure, makes tobacco juice surface uplift, takes place the cavitation around the liquid level of uplift, makes the tobacco juice atomizing produce aerosol. Compare with electric heat formula atomizing electron cigarette, ultrasonic atomization calorific capacity is little, and harmful substance release amount is low, and dry combustion method or carbonization phenomenon are not obvious, but the ultrasonic wave is a bulk acoustic wave, and the energy is uncontrollable in the spreading process to diffusion all around for the required consumption of tobacco juice atomizing is high, the speed is low, efficient, is difficult to produce the even aerosol of particle size distribution steadily, and difficult atomizing high-viscosity tobacco juice.

In view of the problems of the conventional atomization devices, it is of great significance to explore the application of the novel atomization device in the electronic cigarette or cigarette liquid atomizer.

Surface Acoustic Wave (SAW) is a mechanical Wave that propagates along the Surface of an elastic medium, where energy is mainly concentrated and decays exponentially with depth. In the 60's of the 20 th century, the advent of a large number of artificial piezoelectric materials provided the necessary material and technological base for the development of SAW technology due to the development of semiconductor planar technology and laser technology. In 1965, white and Voltmer utilities in the united states have developed metal interdigital transducers (IDT) capable of exciting SAW on the surface of piezoelectric substrate materials.

The SAW atomization has very wide application prospect in the technical field of atomization by virtue of the characteristics of small driving power, high excitation frequency, directional and concentrated energy, small heat productivity and the like. However, the advanced development and the existing defects of the prior art are mainly reflected in the following aspects:

first, the design and improvement of an interdigital transducer, such as chinese publication No. CN111165886a and a patent application document named a variable frequency surface acoustic wave electronic cigarette, discloses a unidirectional structure SPUDT of a fan-shaped structure, which realizes generation of different surface acoustic waves in the region by utilizing IDT period variation in the aperture direction, thereby realizing control of different atomized particle sizes, and enabling the surface acoustic waves to be excited from one direction, reducing bidirectional loss. However, the proposal improves the bidirectional loss of 3dB at most and has a limit on the improvement of the atomization efficiency.

Secondly, the oil guide device is improved, for example, the chinese publication No. CN111838769a, entitled an electronic cigarette atomization device and an electronic cigarette patent application document, discloses an arc IDT which is beneficial to concentrating the energy of the surface acoustic wave to an atomization area, and winds a heating resistance wire on a porous ceramic to improve the temperature of the atomized smoke liquid, and is beneficial to improving the atomization effect. However, the heating sheet or the heating wire is adopted, a three-dimensional additional heating structure is required to be added, the planar process is not compatible, the additional power consumption is increased, and the miniaturization and the low cost are not facilitated.

The existing surface acoustic wave technology only has an integral atomization region in the atomization region, and the surface acoustic wave only generates an atomization liquid film when the region acts, so that the atomization efficiency is low.

The existing surface acoustic wave technology is generally directly through a liquid transfer device or a liquid absorption porous block material in the aspect of liquid guide materials, so that the liquid outlet amount is large and is not easy to control, and meanwhile, the thickness of a liquid film is too large relative to the wavelength, the atomization is poor, and the atomization efficiency is reduced.

In addition, the surface acoustic wave atomization needs to load larger power on the IDT, the temperature of the piezoelectric wafer is suddenly increased due to the resistance effect of the electrode, and the problem of splintering is easily caused due to the anisotropic characteristic of the piezoelectric wafer.

Disclosure of Invention

The utility model aims at overcoming the not enough of above-mentioned background art and providing an atomizing device with phonon dot matrix microstructure.

The technical scheme of the utility model is realized like this: the utility model provides an atomizing device with phonon dot matrix microstructure, includes piezoelectric substrate, sets up interdigital transducer and phonon dot matrix microstructure on piezoelectric substrate surface, piezoelectric substrate includes the piezoelectricity wafer material of oxidation blackening, phonon dot matrix microstructure locates the dead ahead of the surface acoustic wave direction of propagation that interdigital transducer sent, phonon dot matrix microstructure includes the dot matrix micro unit that a plurality of dot matrix types were arranged and communicates each the dot matrix microchannel of dot matrix micro unit, the dot matrix micro unit along surface acoustic wave direction of propagation is vertically and horizontal align to grid, the dot matrix micro unit is established to the concave recess the pit on piezoelectric substrate surface or the boss on protrusion surface, dot matrix microchannel and dot matrix micro unit constitute by the permeable liquid material, the surface acoustic wave propagates to during the phonon dot matrix microstructure the dot matrix micro unit produces the resonance, the surface of dot matrix micro unit forms the liquid film and further atomizes.

Preferably, the lattice micro units are staggered and uniformly arranged on the adjacent transverse columns, and the distance between the adjacent transverse columns is set to be an integral multiple of the half wavelength of the surface acoustic wave.

Preferably, the lattice micro-channel is arranged on the diagonal line of the lattice micro-unit between adjacent lattice micro-channels.

Preferably, the depth of the dot matrix microcell pits or the height of the lands is set to 2 to 200 micrometers.

Preferably, the lattice micro-unit is a square, and the side length of the square is 0.1 to 0.4 times the wavelength of the surface acoustic wave.

Preferably, the device further comprises a liquid storage bin for storing atomized liquid and a liquid guide piece, wherein the liquid guide piece is communicated with the liquid storage bin and the phonon lattice microstructure and guides the atomized liquid stored in the liquid storage bin to the phonon lattice microstructure.

Preferably, the liquid guiding part comprises a liquid inlet, a plurality of flow guiding micro-channels and a plurality of liquid supply ports, the liquid inlet, the flow guiding micro-channels and the liquid supply ports are communicated with one liquid supply port respectively, and the liquid supply ports are connected with the lattice micro-units on the sides of the phonon lattice microstructure in a matching manner respectively.

Preferably, the liquid supply port has a width corresponding to the width of the dot matrix micro-cells and a height of 60 to 200 μm.

Preferably, the piezoelectric substrate is composed of a piezoelectric single crystal structure, or a composite structure composed of a piezoelectric thin film and a substrate.

Preferably, the piezoelectric wafer material is an oxidized blackened lithium niobate wafer.

Preferably, the thickness of the piezoelectric substrate is set to 0.35 mm to 1 mm.

Preferably, the interdigital transducer is a conventional bidirectional interdigital transducer, or a unidirectional single-phase transducer, or a transducer formed by adding a reflection grating on one side of the conventional bidirectional interdigital transducer.

Preferably, the frequency of the alternating voltage applied to the interdigital transducer is set to 3MH _Z ～100MH _Z 。

Preferably, the electrode finger width of the interdigital transducer is 15-80 microns, the length is 1-50 millimeters, and the thickness is 80-2 microns.

The utility model discloses atomizing device with phonon dot matrix microstructure's beneficial effect is:

the atomization device is provided with a phonon lattice microstructure, when the surface acoustic wave reaches the phonon lattice microstructure, resonance is formed in the structure due to multiple times of in-phase reflection interference enhancement, and the energy of the resonance is concentrated on a lattice microcell, so that the surface acoustic wave energy is more efficiently coupled into the liquid to be atomized;

the phonon lattice microstructure is provided with a plurality of lattice micro units, each lattice unit can generate a liquid film atomization area, and compared with the traditional mode that only one atomized liquid film is atomized, the phonon lattice microstructure obviously improves the effective atomization area and is very beneficial to improving the atomization efficiency;

compared with the traditional block material which can permeate liquid directly through a liquid transfer device or absorb oil, the atomization device has the advantages that the size of the lattice micro unit is small, the size of each unit and the size of the wavelength are in the same order, the thickness of a formed liquid film is small, and the atomization speed is favorably improved;

the atomization device adopts the flow guide micro-channel, the outlet end of the flow guide micro-channel is connected with the lattice micro-unit of the phonon lattice microstructure in a matching way, so that liquid to be atomized can be effectively and uniformly supplied to each position of the phonon lattice microstructure, and the atomization efficiency is improved.

The piezoelectric substrate of the atomization device is formed by a blackened piezoelectric single crystal structure, the blackened lithium niobate is specifically adopted as a piezoelectric single crystal material, and compared with a traditional unprocessed lithium niobate substrate (transparent), the blackened lithium niobate substrate can effectively solve the problem of cracking caused by a pyroelectric effect due to overlarge loading power of a transducer in atomization application of the traditional lithium niobate substrate.

The utility model discloses an atomizing device, belong to the application of surface acoustic wave in atomizing technical field, it is little to have drive power, excitation frequency is high, energy orientation is concentrated, calorific capacity is little, the effective material of atomized liquid is difficult to destroyed, harmful substance's release amount must be than the much lower advantage of electric heat type atomizing, still concentrate and conversion efficiency is high because of its energy, can produce the aerosol that particle diameter homogeneity is good, atomized high-viscosity atomized liquid, and make the aerosol particle diameter that produces littleer because of its high frequency characteristic, the taste is more exquisite, more easily absorbed by the human body, and can make atomizing equipment's size littleer, the structure is compacter can portablely.

Drawings

FIG. 1 is a top view of an atomizing device with a phonon lattice microstructure according to the present invention;

FIG. 2 is a perspective view of the atomizing device having a phonon lattice microstructure of the present invention;

FIG. 3 is a three-dimensional exploded view of the atomizing device with a phonon lattice microstructure according to the present invention;

FIG. 4 is a perspective view of a liquid guiding member of the atomizing device having a phonon lattice microstructure according to the present invention;

FIG. 5 is a schematic diagram of a conventional bi-directional interdigital transducer;

FIG. 6 is a schematic diagram of a unidirectional single phase transducer;

fig. 7 is a transducer incorporating a reflective grating on one side of a conventional bi-directional interdigital transducer.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

The utility model has the advantages of the atomizing device of phonon dot matrix microstructure adopts the atomizing principle of surface acoustic wave and phonon dot matrix microstructure, has that calorific capacity is little, the effective material of atomized liquid is difficult to destroyed during the atomizing, the release amount of harmful substance is little and the aerosol particle diameter that produces is littleer, the taste is more exquisite, can be applied to electron cigarette, liquid medicine atomizer better.

Examples

As shown in fig. 1-4, the atomizing device with phonon lattice microstructure of the present invention comprises a piezoelectric substrate 1, and an interdigital transducer 2, a phonon lattice microstructure 3, a liquid guiding member 4, and a liquid storage chamber (not shown) which are adjacently disposed on the surface of the piezoelectric substrate 1. Wherein a dotted arrow a in fig. 2 is a propagation direction of the surface acoustic wave, and fig. 4 is a perspective view showing a bottom surface of the liquid guide 4.

Wherein, phonon dot matrix micro-structure 3 locates the dead ahead of the surface acoustic wave direction of propagation A that interdigital transducer 2 sent, phonon dot matrix micro-structure 3 includes the dot matrix microcell 31 of a plurality of dot matrix arrangements and the dot matrix microchannel 32 of intercommunication dot matrix microcell, dot matrix microcell 31 carries out vertically and horizontal align to grid along surface acoustic wave direction of propagation A, dot matrix microcell 31 is the micro-structure, dot matrix microcell 31 is established to the pit of concave recess piezoelectric substrate surface or the boss of protrusion its surface, the intercommunication is equipped with the dot matrix microchannel 32 of infiltration or transport atomizing liquid between the dot matrix microcell 31, dot matrix microchannel 32 constitutes so that the infiltration, transport and storage atomizing liquid by the permeable liquid material with dot matrix microcell 31. The lattice microchannel 32 is a micro-channel, and the atomized liquid permeates and transmits in the lattice microchannel 32 which can permeate the liquid by utilizing capillary force. The lattice micro-channels 32 can be arranged on diagonal lines of the lattice micro-units 31 between adjacent lattice micro-units, and the structure can permeate and convey atomized liquid to the lattice micro-units more quickly and uniformly. When the surface acoustic wave propagates to the phonon lattice microstructure 3, resonance is generated on each lattice micro unit 31, and a liquid film is formed on the surface of each lattice micro unit 31 and is further atomized.

The lattice micro-cells 31 may be arranged in a phononic crystal structure, and the lattice micro-cells 31 are arranged in a staggered manner in adjacent transverse rows, for example, the lattice micro-cells 31 in the next transverse row are arranged in the middle of two lattice micro-cells 31 in the previous transverse row in the transverse position. The distance X between the center points of the adjacent transverse columns is set to be integral multiple of the half wavelength of the surface acoustic wave. This structure can make the surface acoustic wave on each lattice microcell 31 to form resonance due to multiple in-phase reflection interference intensification.

The utility model discloses a phonon dot matrix microstructure 3 is provided with numerous dot matrix microcell 31, and every dot matrix cell 31 can both produce the liquid film atomization zone, carries out the mode of atomizing than traditional only a holistic atomized liquid film, has obviously promoted effective atomization area, is favorable to atomization efficiency to promote very much. And simultaneously, the utility model discloses an atomizing device has adopted the porous material's of permeable liquid microstructure, compares in traditional direct block material through pipettor or oil absorption, permeable liquid, and its dot matrix microcell size is little, and every unit and wavelength size are the same order of magnitude, and it is also little to form liquid film thickness, is favorable to the promotion of atomization rate.

An interdigital transducer (IDT) 2 is arranged on the surface of the piezoelectric substrate 1 and is positioned on one side of the phonon lattice microstructure 3, and Surface Acoustic Waves (SAW) generated by the interdigital transducer can act on the area of the phonon lattice microstructure 3. When the interdigital transducer (IDT) 2 is electrified to work, surface Acoustic Waves (SAW) are generated and are transmitted to the phonon lattice microstructure 3, under the action of the SAW, atomized liquid is accumulated on the surface of the lattice micro unit 31 to form a liquid film, and the liquid film is further atomized under the high-frequency vibration of the SAW.

Specifically, when the atomizing device is in operation, an alternating current signal is input into an interdigital transducer (IDT) 2, a Surface Acoustic Wave (SAW) is excited and propagated at the piezoelectric substrate part of the IDT by utilizing the inverse piezoelectric effect of the piezoelectric substrate 1, when the SAW passes through the phonon lattice microstructures, atomized liquid in the liquid permeable material of each lattice microcell 31 is sucked out and generates a liquid film in a meniscus shape, energy carried by the SAW can be diffracted into the liquid film at a specific angle in a mode of sound leakage surface waves and generates deformation, so that strong disturbance is generated on the free surface of the liquid film, and when the surface tension of the surface of the liquid film is not enough to keep the geometrical shape of the liquid film stable, atomization starts to occur. The phonon lattice microstructure 3 has the advantages that when the surface acoustic wave reaches the phonon lattice microstructure 3, resonance is formed in the structure due to multiple times of in-phase reflection interference enhancement, and the energy of the resonance is concentrated on the lattice microcell 31, so that the surface acoustic wave energy is more efficiently coupled into the liquid to be atomized, the atomization speed is higher, and the atomization efficiency is improved.

The liquid guide piece 4 is arranged on one side of the piezoelectric substrate 1, the liquid guide piece 4 is communicated with the liquid storage bin and the phonon lattice microstructure 3, the liquid guide piece 4 is provided with a liquid inlet 41 and a liquid supply port 42, the liquid inlet 41 is communicated with the liquid storage bin, and the liquid supply port 42 is connected with the phonon lattice microstructure 3 and supplies liquid. A plurality of flow guide micro-channels 40 are arranged in the liquid guide part 4, the inlet end of each flow guide micro-channel is communicated with the liquid inlet 41, the outlet end of each flow guide micro-channel is respectively provided with a liquid supply port 42, and the liquid supply ports 42 are respectively matched and communicated with the lattice micro-units 31 on the sides of the phonon lattice micro-structure 3. The utility model discloses an atomizing device has adopted the structure of water conservancy diversion microchannel 40, and the exit end of water conservancy diversion microchannel and the little unit accordant connection of dot matrix of phonon dot matrix microstructure can accurate fuel feeding control, can realize effectively treating that atomized liquid supplies to each position of phonon dot matrix microstructure evenly, improves atomization efficiency.

The period of the phonon lattice microstructure 3 is integral multiple of the half period of the IDT. In the phonon lattice microstructure 3, the spacing distance X between the transversely adjacent lattice microcells 31 is set to be an integral multiple of the half wavelength of the surface acoustic wave. The lattice micro unit is set as square block with side length of 0.1-0.4 times of the wavelength of surface acoustic wave. The depth or height of the lattice micro-unit is set to be 2-200 micrometers. The liquid supply port 42 has a width corresponding to the width of the dot matrix micro-cells 31 and a height of 60 to 200 μm. The arrangement of the phonon lattice microstructure 3 can make the surface acoustic wave propagate into the region, and then the resonance of the surface acoustic wave is generated on the lattice microcell 31 by utilizing the characteristics of the phonon crystal.

In this embodiment, the thickness of the piezoelectric substrate 1 is 0.35 to 1 mm, the piezoelectric substrate 1 is formed of an oxidized and blackened piezoelectric single crystal structure, and the piezoelectric single crystal material specifically adopts oxidized and blackened lithium niobate. Compared with the traditional unprocessed lithium niobate substrate (transparent), the oxidized and blackened lithium niobate substrate has a slightly lower electromechanical coupling coefficient, but can effectively solve the problem of cracking caused by pyroelectric effect due to overlarge loading power of the traditional lithium niobate substrate in atomization application.

In other embodiments, the piezoelectric substrate 1 may also be a composite structure composed of a piezoelectric film and a substrate, the piezoelectric film may be made of ZnO, alN, or the like, and the substrate may be made of si, sapphire, or the like.

The utility model discloses an among the atomizing device, the permeable liquid material of the lattice microstructure on the piezoelectric substrate 1, including porous material or fibrous material, wherein porous material accessible magnetron sputtering or spin coating mode are prepared on piezoelectric substrate 1.

The utility model discloses an among the atomizing device, the frequency of the loaded alternating voltage sets for 3MH on the interdigital transducer _Z ～100MH _Z . An interdigital transducer (IDT) whose electrode layer is made of a material including Al, pt, ti, au, mo, or W. The electrode finger width of the interdigital transducer can be set to be 15-80 micrometers, the length is set to be 1-50 millimeters, and the thickness is set to be 80 nanometers-2 micrometers. The design of the structure size is beneficial to improving the working efficiency of the interdigital transducer.

In the present embodiment, as shown in fig. 5, the interdigital transducer 2 is a conventional bidirectional interdigital transducer, and surface acoustic waves generated by the interdigital transducer 2 are emitted to the left and right, as shown by the direction of arrows in fig. 5.

In other embodiments, as shown in fig. 6, the interdigital transducer 2 may be a unidirectional single-phase transducer, and the acoustic surface wave generated by the interdigital transducer 2 is emitted to one side, as shown by the direction of the arrow in fig. 6. The interdigital transducer 2 utilizes the asymmetry of the excitation center and the reflection center to inhibit the surface acoustic waves in the reverse direction, and can enhance the surface acoustic waves in forward propagation.

In other embodiments, as shown in fig. 7, a conventional bi-directional interdigital transducer 2 can be used, with a reflection grating 20 added to one side of the transducer, which reflects a surface acoustic wave propagating in the reverse direction back to the other side, into one direction with a surface acoustic wave propagating in the forward direction, as shown by the arrow in fig. 7.

The utility model discloses an atomizing device's theory of operation is, and phonon dot matrix microstructure comprises the structural material of can oozing liquid, and this structure intercommunication stock solution storehouse, tobacco juice perhaps treat that atomizing liquid gets into the dot matrix microstructure by the stock solution storehouse through the drain spare to in capillary effect infiltration through the dot matrix microchannel, conduct every dot matrix microcell, drain speed mainly by the porosity or the liquid guide power decision of the material of can oozing liquid. The dimensions of the phonon lattice microstructure and the lattice microcell can be determined according to the period and the excitation frequency of the transducer, and the height dimension of the lattice can be adjusted according to the requirement of atomization rate. When alternating voltage is loaded on the transducer, due to the inverse piezoelectric effect of the piezoelectric substrate, the surface acoustic wave is excited and is transmitted to the direction of the phonon lattice microstructure. When the surface acoustic wave reaches the phonon lattice microstructure, due to the acoustic microfluidic effect, liquid to be atomized in the lattice microcell is dragged out, and a liquid film is formed on the surface of the liquid film. Meanwhile, when the surface acoustic wave excited by the interdigital transducer is in contact with a liquid film arranged on a dot matrix micro unit, energy carried by the surface acoustic wave can be diffracted into liquid at a specific angle in a mode of a leaky surface acoustic wave and generates deformation, so that strong disturbance is generated on the free surface of the liquid, and when the surface tension of the liquid surface is not enough to keep the geometrical form of the liquid stable, atomization begins to occur.

The above description is only for the preferred embodiment of the present invention, and the above specific embodiments are not intended to limit the present invention. Within the scope of the technical idea of the present invention, various modifications and alterations can be made, and any person skilled in the art can make modifications, amendments or equivalent replacements according to the above description, all belonging to the protection scope of the present invention.

Claims

1. An atomizing device with a phonon lattice microstructure is characterized in that: including piezoelectricity base, the interdigital transducer and the phonon dot matrix microstructure of setting on piezoelectricity base surface, piezoelectricity base includes the piezoelectric wafer material of oxidation blackening, phonon dot matrix microstructure locates the dead ahead of the surface acoustic wave direction of propagation that the interdigital transducer sent, phonon dot matrix microstructure includes the dot matrix micro unit that a plurality of dot matrix were arranged and communicates each the dot matrix micro unit's dot matrix microchannel, the dot matrix micro unit along surface acoustic wave direction of propagation carries out vertically and horizontal align to grid, the dot matrix micro unit is established to the recess the pit on piezoelectricity base surface or the boss on protrusion surface, dot matrix microchannel and dot matrix micro unit constitute by the permeable liquid material, the surface acoustic wave propagates to during the phonon dot matrix liquid film microstructure the dot matrix micro unit produces the resonance, the surface formation of dot matrix micro unit and further atomizing.

2. The atomizing device having a phonon lattice microstructure according to claim 1, wherein: the lattice micro units are uniformly arranged on the adjacent transverse rows in a staggered mode, and the distance between the adjacent transverse rows is set to be an integral multiple of the half wavelength of the surface acoustic wave.

3. The atomizing device having a phonon lattice microstructure according to claim 1, wherein: the lattice micro-channels are arranged on diagonal lines of the lattice micro-units between adjacent lattice micro-channels.

4. The atomizing device having a phonon lattice microstructure according to claim 1, wherein: the depth of the lattice microcell pits or the height of the bosses is set to be 2-200 microns.

5. The atomizing device having a phonon lattice microstructure according to claim 1, wherein: the lattice micro unit is set as a square, and the side length of the square is set to be 0.1-0.4 times of the wavelength of the surface acoustic wave.

6. The atomizing device having a phonon lattice microstructure according to claim 1, wherein: the liquid guiding piece is communicated with the liquid storage bin and the phonon dot matrix microstructure and guides the atomized liquid stored in the liquid storage bin to the phonon dot matrix microstructure.

7. The atomizing device having a phonon lattice microstructure of claim 6, wherein: the liquid guide part comprises a liquid inlet, a plurality of flow guide micro-channels and a plurality of liquid supply ports, wherein the liquid inlet, the flow guide micro-channels and the liquid supply ports are communicated, each flow guide micro-channel is communicated with one liquid supply port, and the liquid supply ports are respectively connected with the dot matrix micro-units on the sides of the phonon dot matrix micro-structures in a matching mode.

8. The atomizing device having a phonon lattice microstructure according to claim 7, wherein: the width of the liquid supply port is equivalent to the width of the dot matrix microcell, and the height is set to be 60-200 micrometers.

9. The atomizing device having a phonon lattice microstructure according to claim 1, wherein: the piezoelectric substrate is composed of a piezoelectric single crystal structure or a composite structure composed of a piezoelectric film and a substrate.

10. The atomizing device having a phonon lattice microstructure according to claim 1, wherein: the piezoelectric wafer material is a blackened lithium niobate wafer.

11. The atomizing device having a phonon lattice microstructure of claim 1, wherein: the thickness of the piezoelectric substrate is set to be 0.35 mm to 1 mm.

12. The atomizing device having a phonon lattice microstructure according to claim 1, wherein: the interdigital transducer is a bidirectional interdigital transducer, or a unidirectional single-phase transducer, or a transducer formed by adding a reflecting grating on one side of the bidirectional interdigital transducer.

13. The atomizing device having a phonon lattice microstructure according to claim 1, wherein: the frequency of the AC voltage applied to the interdigital transducer is set to 3MH _Z ～100MH _Z 。

14. The atomizing device having a phonon lattice microstructure according to claim 1, wherein: the electrode finger width of the interdigital transducer is 15-80 micrometers, the length is 1-50 millimeters, and the thickness is 80-2 micrometers.