CN106174706A - A kind of acoustic surface wave atomizer - Google Patents
A kind of acoustic surface wave atomizer Download PDFInfo
- Publication number
- CN106174706A CN106174706A CN201610767046.5A CN201610767046A CN106174706A CN 106174706 A CN106174706 A CN 106174706A CN 201610767046 A CN201610767046 A CN 201610767046A CN 106174706 A CN106174706 A CN 106174706A
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- Prior art keywords
- oil
- atomization
- piezoelectric substrate
- acoustic
- wave
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Classifications
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/05—Devices without heating means
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/10—Devices using liquid inhalable precursors
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- Special Spraying Apparatus (AREA)
Abstract
The invention discloses a kind of acoustic surface wave atomizer, including: base (1), offer air inlet (4), bottom is provided with main frame union joint (5)；Atomization storehouse (2), connects with described air inlet (4), and inner bottom offers fixing groove and surface acoustic wave atomization chip (6) being fixed therein；Suction nozzle (3)；Host signal generating means (8)；One end of described atomization storehouse (2) is connected with described base (1), and the other end is connected with described suction nozzle (3).
Description
Technical field
The invention belongs to electronic cigarette technical field, specifically, relate to a kind of acoustic surface wave atomizer.
Background technology
Up to now, Electric heating remains the major way of commercially available electronic cigarette heating atomization ree-oil, wherein, nebulizer
As the core component of electronic cigarette, substantially it is made up of oil storage element, Oil Guide element and heating.Ree-oil in oil storage element
Being delivered on heating by oil-deflecting element, during energising suction, the high temperature of heating makes ree-oil thereon evaporation atomization, is formed
Atomizing steam with carrier gas (air) person of being sucked suck.
Ree-oil experienced by the process of high-temperature heating on heating, and when suction, the high temperature of heating is the most only possible
Cause some aroma components contained in ree-oil at high temperature to decompose rotten, cause suction abnormal flavour or aroma change, thus
Directly affect suction quality；The material that also can result in manufacturing heating and Oil Guide element cracks, comes off, carbonization or molten
Go out so that suction organoleptic quality declines and there is potential healthy hidden danger.
Existing electronic cigarette atomizing technology is in addition to the electrothermal atomized of main flow, and ultrasonic atomization is also a main trend.Up-to-date
Electronic cigarette ultrasonic atomization technique mainly includes two classes: a class still needs to use heater element first to heat ree-oil, the most again with ultrasonic
Ree-oil after atomising device atomization heating is (such as " ultrasonic activation formula electronic cigarette atomization device and electronic cigarette "
CN201610007620.7, " a kind of electronic smoke atomizer and electronic cigarette " CN201510423239.4)；Another kind of is to use to include
Piezoceramics layer and for driving the atomizing piece ultrasonic atomizatio ree-oil that its electric conductor vibrate constitutes, this technology is not required to generate heat first
Part, the upper and lower surface of the piezoceramics layer of atomizing piece used is respectively necessary for arranging two conductive layers contacted, the most also needs
Want porous oil guide structure (" a kind of soniclizer and electronic cigarette " CN201610160216.3).Soniclizer often body
Long-pending bigger so that electronic cigarette is difficult to miniaturization.
Accordingly it is desirable to the Novel atomized mode that exploitation is in addition to electrical heating atomization and ultrasonic atomization, and corresponding
Atomization plant be preferably able to miniaturization.
Summary of the invention
The present invention provides a kind of acoustic surface wave atomizer, and this atomization belongs to non-electrothermal atomized, it is not necessary to heating and/or lead
Oil element, overcomes that the tradition electrical heating organoleptic quality brought of atomization is the best or unstable, there is the defects such as healthy hidden danger, structure
Simply, direct oil dripping type can be used to be atomized, it is possible to integrated with oil storage part.
Oil dripping type nebulizer includes base 1, atomization storehouse 2 and suction nozzle 3.Wherein, base 1 offers air inlet 4 and main frame connects
5.Described air inlet 4 and atomization storehouse internal run-through.Described union joint 5 electrically connects with main frame.Described atomization storehouse 2 includes sound surface
Ripple atomization chip 6 and fixing groove.Atomization one end, storehouse is connected with base, and the other end is connected with suction nozzle.The internal low side in described atomization storehouse
Having fixing groove, being fixed in atomization storehouse for surface acoustic wave being atomized chip.Described surface acoustic wave atomization chip 6 includes piezoelectricity
Substrate 6-1, interdigital transducer 6-2 and sound-absorbing material 6-3.Wherein, for described piezoelectric substrate materials can be piezoelectric monocrystal, piezoelectricity
Thin film and piezoelectric ceramics, such as quartz, Lithium metaniobate.Preferably Y cuts the Lithium metaniobate (LiNbO in 128.68 ° of directions of X3) piezoelectric substrate.
Piezoelectric substrate is after surface finish, and sputter deposition layer of metal (such as aluminum) film, is made by photoetching process and have energy thereon
The interdigital metal electrode (interdigital transducer 6-2) of translation function.Interdigital transducer 6-2 is by being located at outside piezoelectric substrate
Terminal pin 7 realizes electrically connecting with main frame.Sound-absorbing material 6-3 is arranged on the end face at piezoelectric substrate two ends, is to suppress sound table
Face ripple is roundtrip between two end faces.
Main frame comprises the signal generation apparatus 8 for driving interdigital transducer 6-2 to work.Described host signal fills
Putting 8 and include signal generator 8-1 and power amplifier 8-2, signal generator applies AC signal to surface acoustic wave atomization chip,
Signal is then amplified by power amplifier, and the signal frequency of applying is set as the operating frequency of device, is loading after amplifying
On interdigital transducer 6-2, in order to excite surface acoustic wave.The energy that surface acoustic wave carries can be with the pattern of leaky surface acoustic wave to liquid
Body transmission energy also produces deformation, thus the Free Surface of liquid is produced strong disturbance, when the surface of liquid surface self
When tension force is not enough to keep its geometric shape stable, atomization just starts to occur.
Compared with existing ultrasonic atomization technique, the advantage of the present invention:
Surface acoustic wave is a kind of elastic sound waves can only propagated at the surface of solids, and its energy is largely focused on below surface
The degree of depth is about in several wave-length coverage.Surface acoustic wave atomization is that the acoustic streaming of the acoustic energy generation by diffraction entrance liquid is to liquid table
The disturbance of the capillary wave that face produces causes, and ultrasonic atomization phenomenon is to be moved by the reciprocating-piston of piezoelectric substrate to produce
Disturbance produce.The operation frequency of acoustic surface wave atomizer is usually 10-500MHz, ratio conventional ultrasonic wave nebulizer
(20kHz-3MHz) high an order of magnitude.Therefore, acoustic surface wave atomizer smaller, more compact structure is the most portable.
As a kind of high frequency sound wave atomization method, have more higher frequency than ultrasonic atomization technique, it is possible to achieve ree-oil
The monodispersity of condensation aerosol and continuous-stable.Meanwhile, altofrequency is easy to the cigarette oil atomization that viscosity is bigger.
Bulk acoustic wave energy is propagated in whole device substrate, and surface acoustic wave is limited to piezoelectric substrate its most energy
Surface, needs power lower than bulk acoustic wave.
Surface acoustic wave is a kind of mechanical wave propagated along the shallow top layer of piezoelectric substrate, has the advantage that energy is concentrated.Easily with
Integrated circuit, microdevice, sensing and microflow control technique combine, it is simple to miniaturization, integrated.
The acoustic power intensity used in acoustic surface wave device is similar with the scope for pregnancy period physical examination with frequency, peace
Quan Xinggao.
Compared with existing electrical heating atomization technique, the advantage of the present invention:
Eliminate the organoleptic quality change that the ree-oil chemical composition change because using high-temperature electric heat element to cause, dry combustion method etc. cause
The defects such as change and health risk.
Oil dripping type apparatus structure is simple, has the oil storage type device of micro fluidic device by determining the design of microchannel
Amount controls ree-oil atomization quantity, thus ensures sense organ concordance and improve Consumer's Experience.
The oil storage type device with Oil Guide core compares the oil storage type device with micro fluidic device, and structure is the simplest, system
Causing this lower, papery Oil Guide core safety and environmental protection, detachable design greatly facilitates atomization storehouse and surface acoustic wave atomization chip
Cleaning.
Accompanying drawing illustrates:
Fig. 1 is the acoustic surface wave atomizer schematic diagram of the present invention；
Fig. 2 is the oil dripping type surface acoustic wave atomization chip structure schematic diagram of the present invention；
Fig. 3 is the oil storage type surface acoustic wave atomization chip structure schematic diagram with micro fluidic device of the present invention；
Fig. 4 is the oil storage type acoustic surface wave atomizer profile with Oil Guide core of the present invention；
Fig. 5 is the oil storage type surface acoustic wave atomization chip schematic diagram with Oil Guide core of the present invention.
Reference is: 1: base；2: atomization storehouse；3: suction nozzle；4: air inlet；5: main frame union joint；6: surface acoustic wave mist
Change chip；6-1: piezoelectric substrate；6-2: interdigital transducer；6-3: sound-absorbing material；6-4: microchannel；7: terminal pin；8: main frame is believed
Number generating means；8-1: signal generator；8-2: power amplifier；9: ree-oil drop；10: oil storage cabin；10-1: oil storage cabin end
Lid；101: ree-oil arrival end；102: the ree-oil port of export；103: capillary tube；104: Oil Guide core.
Detailed description of the invention
The using method of oil dripping type nebulizer:
Assemble base 1, atomization storehouse 2 and main frame, tobacco smoke droplets is added on surface acoustic wave atomization chip 6, loads onto suction nozzle 3.Open
Dynamic host power supply, signal generation apparatus 8 works, and interdigital transducer 6-2 obtains ac signal and is energized, piezoelectric substrate 6-1
Surface vibration, excites corresponding elastic sound field by inverse piezoelectric effect in substrate, and the signal of telecommunication is changed into acoustical signal, formed with
External signal same frequency the surface acoustic wave propagated along substrate surface, surface acoustic wave is propagated along piezoelectric substrate surface, when running into position
During ree-oil drop 9 on acoustic surface wave propagation path, drop occurs atomization to form aerosol and by from nebulizer base air inlet
The air that hole 4 enters is brought suction nozzle end into and is inhaled into.As depicted in figs. 1 and 2.
There is the oil storage type nebulizer using method of micro fluidic device:
Oil storage type nebulizer includes base, atomization storehouse, oil storage cabin and suction nozzle.Wherein, base and described oil dripping type nebulizer
Identical.Atomization storehouse includes that surface acoustic wave atomization chip and fixing groove, atomization one end, storehouse are connected with base, and the other end is with oil storage cabin even
Connect.The internal low side in described atomization storehouse has fixing groove, is fixed in atomization storehouse for surface acoustic wave is atomized chip.Described sound table
Face ripple atomization chip 6 includes piezoelectric substrate 6-1, interdigital transducer 6-2, sound-absorbing material 6-3 and ree-oil microchannel 6-4.Wherein, cigarette
Oil microchannel 6-4 uses micro-processing technology in the upper manufacture of polydimethylsiloxane (PDMS), and in PDMS microchannel ree-oil conveying side
It is mutually perpendicular to the acoustic surface wave propagation direction with the interdigital transducer generation on piezoelectric substrate.Microchannel upper surface is fixed on storage
Being connected with oil storage cabin bottom bunker and by ree-oil arrival end 101, microchannel lower surface is fixed on piezoelectric substrate and is provided with cigarette
Oil export end 102.Ree-oil in oil storage cabin can use different type of drive to be delivered to through microchannel by microchannel entrance end
The port of export, and oil storage cabin and microchannel entrance end can design various Micropump or micro-valve and control oil storage by engine control system
Connection between storehouse and microchannel and shutoff.Above-mentioned ree-oil microchannel and the Micropump being connected with oil storage cabin or micro-valve etc. collectively form
Micro fluidic device.The structure of the miscellaneous part in addition to microchannel, layout and manufacture method and described oil dripping type on piezoelectric substrate
Nebulizer surface acoustic wave atomization chip is identical.
Connect nebulizer base and main frame, connect atomization storehouse and oil storage cabin, in oil storage cabin, fill ree-oil, cover suction nozzle.
Starting host power supply, engine control system and signal generation apparatus work, control system controls the ree-oil in oil storage cabin by micro-
Passage ree-oil arrival end 101 drops in piezoelectric substrate surface after microchannel 6-4 is delivered to the ree-oil port of export 102, and signal fills
Put 8 and trigger the surface acoustic wave propagated along piezoelectric substrate surface, when surface acoustic wave runs into the ree-oil liquid being positioned on its propagation path
When dripping 9, drop occurs atomization form aerosol and brought into suction nozzle end by the air entered from nebulizer base air inlet and inhaled
Enter.As shown in figures 1 and 3.
There is the oil storage type nebulizer using method of Oil Guide core:
Oil storage type nebulizer includes base 1, atomization storehouse 2, oil storage cabin 10 and suction nozzle end 3.Set between atomization storehouse 2 and base 1
Fixing groove 11 is had to be atomized chip 6 for fixed sound surface wave.Base side wall is provided with air inflow openings 4 and connects inside atomization storehouse
Logical.Oil storage cabin 10 top nearly suction nozzle end is provided with end cap 10-1 and can open oiling.Aperture is had in the side cavity wall of oil storage cabin 10
And in communication and that be installed on bulkhead capillary hollow 103.Oil storage cabin 10 is different from common with the position relationship in atomization storehouse 2
Electronic smoke atomizer being arranged side by side radially, but being arranged side by side vertically.Described capillary tube 103 is atomized with surface acoustic wave
The piezoelectric substrate 6-1 surface of chip 6 fits tightly.Described capillary tube 103 embeds Oil Guide core 104, and this Oil Guide core one end is prolonged
Extending in oil storage cabin cavity, the other end extends to outside capillary end and contacts with piezoelectric substrate 6-1 surface.Described atomization storehouse 2
The c-type structure opened wide for side, its open end just can be combined closely with the side outer wall of oil storage cabin 10.Atomization storehouse 2 and base 1
Fixing connection.It is Demountable between described oil storage cabin 10 and atomization storehouse 2, it is simple to change Oil Guide core 104 and clean atomization
Storehouse 2 and surface acoustic wave atomization chip 6.Described oil storage cabin 10 and atomization storehouse 2 all can use transparent material to make, in order to Real Time Observation
Ree-oil consumes and ree-oil atomization situation.Described Oil Guide core 104 can use cellulose polyester paper filtration core, it is possible to uses other safety
The porous material of environmental protection.Described Oil Guide core 104 siphon ree-oil from oil storage cabin 10, can by the capillary pressure produced in Oil Guide core
Conveying ree-oil is to being atomized on chip 6 continuously.
Before suction, being embedded in capillary tube 103 by Oil Guide core 104 and make one end extend in oil storage cabin, the other end extends to
Outside capillary end.By oil storage cabin and atomization storehouse and then be connected with base.Ree-oil is added, until ree-oil liquid level is high in oil storage cabin
In capillary tube end face.Close oil storage cabin 10 top end cap.Connect nebulizer and main frame, cover suction nozzle.Start host power supply, main frame
Signal generation apparatus 8 works, and interdigital transducer 6-2 obtains ac signal and is energized, piezoelectric substrate 6-1 surface vibration, logical
Cross inverse piezoelectric effect in substrate, excite corresponding elastic sound field, the signal of telecommunication is changed into acoustical signal, formed same with external signal
Frequency the surface acoustic wave propagated along substrate surface, surface acoustic wave is propagated along piezoelectric substrate surface, is positioned at when surface acoustic wave runs into
On its propagation path and when being positioned at the ree-oil liquid film 9 of Oil Guide core front end, acoustic wave energy leaks in liquid film, and the scope of freedom of film becomes not
Stable, liquid-sheet disintegration forms aerosol and is brought into suction nozzle end by the air entered from nebulizer base air inlet and be inhaled into.As
Shown in Fig. 1 and Fig. 4 and Fig. 5.
Claims (8)
1. an acoustic surface wave atomizer, it is characterised in that including:
Base (1), offers air inlet (4), and bottom is provided with main frame union joint (5)；
Atomization storehouse (2), connects with described air inlet (4), and inner bottom offers fixing groove and the surface acoustic wave being fixed therein
Atomization chip (6)；
Suction nozzle (3)；
Host signal generating means (8)；
One end of described atomization storehouse (2) is connected with described base (1), and the other end is connected with described suction nozzle (3).
Acoustic surface wave atomizer the most according to claim 1, it is characterised in that described surface acoustic wave atomization chip (6) is
Oil dripping type surface acoustic wave atomization chip or oil storage type surface acoustic wave atomization chip, including:
Piezoelectric substrate (6-1), outside is provided with terminal pin (7)；
Interdigital transducer (6-2), is arranged in described piezoelectric substrate (6-1) surface；
Sound-absorbing material (6-3), is arranged on described piezoelectric substrate (6-1) end face at described interdigital transducer (6-2) two ends.
Acoustic surface wave atomizer the most according to claim 1, it is characterised in that described host signal generating means (8) is wrapped
Include signal generator (8-1) and power amplifier (8-2).
Acoustic surface wave atomizer the most according to claim 2, it is characterised in that described oil storage type surface acoustic wave atomization chip
On be disposed with microchannel (6-4) and the ree-oil arrival end (101) connected by described microchannel (6-4) and the ree-oil port of export
(102)。
Acoustic surface wave atomizer the most according to claim 2, it is characterised in that described oil storage type surface acoustic wave atomization chip
(6) it is disposed with the capillary tube (103) fitted tightly with its surface on, described capillary tube (103) is embedded with Oil Guide core (104),
Described Oil Guide core (104) one end extends to outside described capillary tube (103) end and contacts, separately with described piezoelectric substrate (6-1) surface
One end extends in oil storage cabin cavity (10).
Acoustic surface wave atomizer the most according to claim 2, it is characterised in that described piezoelectric substrate (6-1) is piezoelectricity list
Crystalline substance, piezoelectric membrane or piezoelectric ceramics.
Acoustic surface wave atomizer the most according to claim 6, it is characterised in that described piezoelectric substrate (6-1) be quartz or
Lithium metaniobate.
Acoustic surface wave atomizer the most according to claim 7, it is characterised in that described piezoelectric substrate (6-1) is that Y cuts
The Lithium metaniobate in X128.68 ° of direction.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610767046.5A CN106174706A (en) | 2016-08-31 | 2016-08-31 | A kind of acoustic surface wave atomizer |
| PCT/CN2017/099529 WO2018041106A1 (en) | 2016-08-31 | 2017-08-29 | Acoustic surface wave atomizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610767046.5A CN106174706A (en) | 2016-08-31 | 2016-08-31 | A kind of acoustic surface wave atomizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106174706A true CN106174706A (en) | 2016-12-07 |
Family
ID=58089943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610767046.5A Pending CN106174706A (en) | 2016-08-31 | 2016-08-31 | A kind of acoustic surface wave atomizer |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106174706A (en) |
| WO (1) | WO2018041106A1 (en) |
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| CN108030153A (en) * | 2018-01-26 | 2018-05-15 | 云南中烟工业有限责任公司 | A kind of surface acoustic wave electronic cigarette system |
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