CN106422005A - Ultrasonic atomization structure and ultrasonic atomization device using the same - Google Patents
Ultrasonic atomization structure and ultrasonic atomization device using the same Download PDFInfo
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- CN106422005A CN106422005A CN201610842366.2A CN201610842366A CN106422005A CN 106422005 A CN106422005 A CN 106422005A CN 201610842366 A CN201610842366 A CN 201610842366A CN 106422005 A CN106422005 A CN 106422005A
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- liquid
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- liquid storage
- atomization
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M11/00—Sprayers or atomisers specially adapted for therapeutic purposes
- A61M11/005—Sprayers or atomisers specially adapted for therapeutic purposes using ultrasonics
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The invention discloses an ultrasonic atomization structure and an ultrasonic atomization device using the same. The ultrasonic atomization structure comprises a liquid receiving tank 12, a liquid absorption medium 15 and an atomization unit, wherein the liquid absorption medium 15 is arranged in the liquid receiving tank 12, and the bottom surface of the liquid absorption medium 15 is immersed in liquid in the liquid receiving tank 12. When the ultrasonic atomization structure is used, the liquid absorption medium 15 absorbs the liquid in the liquid receiving tank 12 and conveys the liquid to one end of the liquid imbibition medium 15, far from the bottom surface of the liquid absorption medium 15, the atomization unit is attached to the end of the liquid absorption medium 15, far from the bottom surface of the liquid absorption medium 15, and the end of the liquid absorption medium 15, far from the bottom surface of the liquid absorption medium 15, is provided with a groove 1501. The ultrasonic atomization structure and the ultrasonic atomization device using the same can atomize the high viscosity liquid into fine drops, and can not cause a superheating phenomenon to the atomization unit.
Description
Technical field
The present invention relates to technical field of medical equipment, more particularly, to a kind of ultrasonic atomizatio structure and ultrasonic using this structure
Atomization plant.
Background technology
Many occasions in daily life are required for becoming small drop or aerosol to use liquid dispersion, example
Such as sterilization, go to eliminate the unusual smell and air wetting etc..Atomize the liquid into or vaporize and be often conducive to the Quick uniform of liquid to spread.Doctor
Atomizer on would generally comprise a heating unit or a gas compression pump, and the former can be because high temperature leads to medicine to divide
Solution；The latter then not only noise big, also usually medicine is polluted due to gas-liquid directly contact.
In order to meet the particular/special requirement conveying medicine through respiratory tract, manufacturer developed ultrasonic atomization technique in recent years,
Pass through vibration and stick to the micropore atomization piece on piezoelectric ceramic piece.In simple terms, based on this technology, and liquid directly contact
Micropore atomization piece together with energized piezoelectric ceramic piece under ultrasonic frequency vibrate, then liquid is pumped to atomizing piece
Surface simultaneously forms thin film.This layer of liquid film absorbs vibrational energy from atomizing piece and forms standing wave, and its direction of vibration is perpendicular to atomization
The surface of piece.When the amplitude under a certain given frequency increases, standing wave becomes unstable, finally bursts apart in certain critical point.Cause
This fine droplet is vertically ejected from the surface of liquid film.
Most of ultrasonic atomization equipment is all directly to arrange in a liquid by ultrasonic atomizatio unit, so on the market at present
Design be only used for being atomized water base or low-viscosity (mobile) liquid it is impossible to be used for being atomized high viscosity liquid.Because sticky liquid film meeting
Micropore on blocking atomizing piece, thus having blocked atomization, finally making piezoelectric ceramic piece temperature rise and even damaging.Accordingly, it would be desirable to
A kind of ultrasonic ultrasonic delay line memory that high viscosity liquid can be formed fine droplet by ultrasonic atomization of exploitation.
Content of the invention
It is an object of the present invention to：A kind of ultrasonic atomization structure is provided, can be effectively by high viscosity liquid mist
Turn to fine droplet, and do not damage piezoelectric ceramic piece.
A further object of the present invention is：There is provided a kind of ultrasonic atomizatio equipment, outwards injection is atomized by high viscosity liquid
Fine droplet.
For reaching this purpose, the present invention employs the following technical solutions：
On the one hand, provide a kind of ultrasonic atomizatio structure, including submerged soil, imbibition medium and atomization unit, described imbibition is situated between
Matter is arranged in submerged soil, and the bottom surface of described imbibition medium is immersed in the liquid in described submerged soil, described imbibition during use
Liquid in submerged soil is absorbed and is transported to described imbibition medium one end away from bottom surface by medium, described atomization unit with described
Imbibition medium is fitted away from one end of bottom surface；Described imbibition medium is provided with groove away from one end of bottom surface.
As a kind of preferred technical scheme, described atomization unit includes piezoelectric ceramic piece and micropore atomization piece, described micro-
Hole atomizing piece is arranged on the side near described imbibition medium for the described piezoelectric ceramic piece, and described micropore atomization piece is situated between with described imbibition
Matter is fitted away from one end of bottom surface；
Described piezoelectric ceramic piece is provided with through hole, the position of the middle part of described micropore atomization piece corresponding described through hole
Offer atomization through hole；Described atomization through hole is connected with the described groove of described imbibition medium.
Preferably, the thickness of described micropore atomization piece is less than more than 20 microns 400 microns, the aperture of described atomization through hole
For less than more than 1 micron 300 microns.
Preferably, the opening area area of described micropore atomization piece is less than the face of the described through hole of described piezoelectric ceramic piece
Long-pending.
Preferably, described atomization unit includes some groups of piezoelectric ceramic pieces being sequentially connected and micropore atomization piece, some groups
Described piezoelectric ceramic piece and micropore atomization piece carry out multistage atomizing process to liquid successively.
As a kind of preferred technical scheme, described micropore atomization piece is tabular；
Or, the middle part of described micropore atomization piece is provided with arc convex, and it is convex that described atomization through hole is opened in described arc
Play position.
Preferably, the oriented arc away from described imbibition media side protrusion of the middle part setting of described micropore atomization piece is convex
Rise.
As a kind of preferred technical scheme, described imbibition medium is inkjet printing foam.
As a kind of preferred technical scheme, described imbibition medium is divided into interconnective upstanding portion and bending part,
The center line of described upstanding portion and horizontal plane, the center line of described bending part and the angle of horizontal plane are more than 0 degree
Less than 90 degree.
As a kind of preferred technical scheme, also include ultrasonic oscillation circuit, described atomization unit passes through wire and institute
State ultrasonic oscillation circuit to connect.
Preferably, the output frequency of described ultrasonic oscillation circuit is more than 50kHz below 5MHz, and amplitude is more than 50V
Below 500V.
As a kind of preferred technical scheme, also include support and pressing plate,
It is provided with installation through-hole, described imbibition medium is inserted in described installation through-hole, described support in the middle of described support
Inwall is fitted with the side wall of described imbibition medium, and the outer wall of described support is fixedly connected with described submerged soil, the bottom of described support
It is provided with conducting gap between the bottom surface of the inwall of face and described submerged soil；
Described pressing plate is arranged on the side away from described imbibition medium for the described atomization unit, and the middle part of described pressing plate offers
Resigning through hole, described pressing plate is detachably connected with described support, described pressing plate and atomization unit described in described stent clamping.
On the other hand, provide a kind of ultrasonic atomizatio equipment, including above-mentioned ultrasonic atomizatio structure, also include mist guide tube；Institute
Stating mist guide tube is the horn-like of both ends open, and the big opening end of described mist guide tube is connected with the side wall of described submerged soil, described leads
The inner side at the big opening end of mist pipe is provided with gap of backflowing.
As a kind of preferred technical scheme, the center line of little openend of described mist guide tube and the angle of horizontal plane are 0
More than degree less than 90 degree.
As a kind of preferred technical scheme, also include reservoir, liquid storage canal and top plug,
Reservoir is arranged on the top of liquid storage canal, and the lateral wall of the bottom of reservoir is pasted with the madial wall on the top of liquid storage canal
Merging is slidably connected；The top of reservoir is provided with inlet, and described inlet is provided with the upper lid being detachably connected；Reservoir
Bottom is provided with through hole, and gap is left in the bottom surface of the bottom of reservoir and liquid storage canal, forms reservoir outlet, and reservoir passes through liquid storage
Groove outlet connects with liquid storage canal；
The upper side of liquid storage canal has air pressure balance mouth, and the bottom of liquid storage canal is connected with submerged soil bottom by leading canal；
The bottom of liquid storage canal is provided with top plug limited block and reservoir limited block, leaves air inlet between reservoir limited block and liquid storage canal bottom
Breach, the extreme higher position of described air inlet breach is not less than the extreme higher position of described liquid storage canal outlet；
Inside reservoir, liquid storage trench bottom is simultaneously located at the row that the lower section filled on top offers connection liquid storage canal on the top of top plug
Discharge hole；Outside reservoir, the middle part of top plug passes through the through hole of liquid storage trench bottom to connect top and the top of top plug for the bottom of top plug
The bottom of plug, is provided with the spring for closing described discharge orifice, uses between the bottom of top plug and the outer wall of bottom of reservoir
Shi Dingsai limited block extruding top plug, described spring-compressed, described discharge orifice is opened.
Specifically, outside air passes through air pressure balance mouth, air inlet breach, reservoir outlet and discharge orifice entrance reservoir,
Make the air pressure inside of reservoir and the air pressure inside balance of liquid storage canal.When reservoir outlet or air inlet breach are liquid-immersed
When, outside air cannot be introduced into reservoir, and the liquid in reservoir just cannot flow in liquid storage canal, now the liquid level in liquid storage canal
Reach highest liquid level.So by changing the height design to reservoir outlet or air inlet breach, and then liquid storage can be changed
The height of the highest liquid level of canal, realizes the Liquid level of whole ultrasonic atomizatio equipment.
The present invention provides a kind of ultrasonic atomizatio structure and the ultrasonic atomizatio equipment using this structure, has the beneficial effect that：
1) high viscosity liquid ultrasonic atomizatio can be become fine droplet, avoid the excessive problem of atomization unit heating simultaneously；
2) pass through to change the shape of imbibition medium, thus it is possible to vary from the injection direction of atomization unit fine droplet out；
3) pass through to change the shape of imbibition medium and mist guide tube, thus it is possible to vary from excusing from death atomization plant fine droplet out
Injection direction.
Brief description
Below according to drawings and Examples, the present invention is described in further detail.
Fig. 1 is the ultrasonic atomizatio equipment profile described in embodiment；
Fig. 2 is the assembling schematic diagram of atomization unit and imbibition medium；
Fig. 3 is the close-up schematic view of atomization unit and imbibition medium；
Fig. 4 is the schematic diagram of imbibition medium bending part；
Fig. 5 is the raised micropore atomization piece schematic diagram of middle setting；
Fig. 6 is the schematic appearance of ultrasonic atomizatio equipment.
In Fig. 1 to Fig. 6：
1st, Shang Gai；
2nd, reservoir；201st, liquid storage trench bottom；
3rd, top plug；
4th, discharge orifice；
5th, top plug limited block；
6th, liquid storage canal；
7th, air pressure balance mouth；
8th, reservoir limited block；
9th, spring；
10th, reservoir outlet；
11st, lead canal；
12nd, submerged soil；
13rd, little openend；
14th, support；
15th, imbibition medium；1501st, groove；1502nd, upstanding portion；1503rd, bending part；
16th, piezoelectric ceramic piece；
17th, wire；1701st, the first wire；1702nd, the second wire；
18th, pressing plate；
19th, micropore atomization piece；1901st, it is atomized through hole；
20th, mist guide tube；
21st, backflow gap；
22nd, switch；
23rd, screw fixed hole；24th, screwing through hole；25th, screw；
26th, charging inlet；
27th, indicator lamp；
28th, air inlet breach.
Specific embodiment
Further illustrate technical scheme below in conjunction with the accompanying drawings and by specific embodiment.
Concrete structure explanation：
As shown in figure 1, in the present embodiment, a kind of ultrasonic atomizatio equipment, it includes the reservoir 2 arranged up and down and liquid storage
Canal 6, the lateral wall of the bottom of reservoir 2 is fitted with the madial wall on the top of liquid storage canal 6, but can relatively rotate between the two
Or slide.The top of reservoir 2 is provided with opening, and can add from opening has liquid to be atomized, and opening is with upper lid 1 screw thread even
Connect naturally it is also possible to be designed as buckle snapping etc. to connect mode soon.The bottom of reservoir 2 is provided with discharge in the lower section on top plug 3 tops
Hole 4, reservoir 2 is connected with liquid storage canal 6 by discharge orifice 4, and the upper side of liquid storage canal 6 is provided with air pressure balance mouth 7, can be used to
Observe the liquid level situation in reservoir 2 and liquid storage canal 6, liquid storage canal 6 can also be realized and be connected with ambient pressure.Liquid storage trench bottom
201 leave gap with the inwall bottom surface of liquid storage canal 6, form reservoir outlet 10, and discharge orifice 4 passes through reservoir and exports 10 and liquid storage
Canal 6 connects.The bottom of liquid storage canal 6 is provided with reservoir limited block 8 and top plug limited block 5；Reservoir limited block 8 and liquid storage canal 6 bottom
Portion leaves air inlet breach 28, and outside air passes through air pressure balance mouth 7, air inlet breach 28, reservoir outlet 10 and discharge orifice 4 and enters
Reservoir 2, makes the air pressure inside of reservoir 2 and the air pressure inside balance of liquid storage canal 6.When reservoir outlet 10 or air inlet breach
28 by liquid-immersed when, outside air cannot be introduced into reservoir 2, and the liquid in reservoir 2 just cannot flow in liquid storage canal 6, this
When liquid storage canal 6 in liquid level reach highest liquid level.So can be by changing to reservoir outlet 10 or air inlet breach 28
Highly design, and then change the height of the highest liquid level of liquid storage canal 6, realize the Liquid level of whole ultrasonic atomizatio equipment.Yu Ben
In embodiment, the extreme higher position of air inlet breach 28 is higher than the extreme higher position of reservoir outlet 10, as long as so liquid in liquid storage canal 6
Face is higher than the extreme higher position of reservoir outlet 10, then the liquid in reservoir 2 will stop the flowing in liquid storage canal 6.Certainly, enter
The extreme higher position of gas breach 28 is highly designed can also be highly concordant with the extreme higher position of reservoir outlet 10, or is less than liquid storage
The extreme higher position height of groove outlet 10.Reservoir limited block 8 can limit the movement position on reservoir 2 vertical direction, works as storage
When liquid bath 2 occurs relative slip with liquid storage canal 6, reservoir 2 is down moved to and is contacted with reservoir limited block 8, then can not be past again
Lower motion.Inside reservoir 2, bottom is fitted with the upper surface of top plug limited block 5 in liquid storage canal 6, top on the top of top plug 3
The mid portion of plug 3 passes through the through hole of liquid storage trench bottom 201 to couple together the upper and lower pushing up plug 3.Top plug 3 bottoms and storage
It is provided with spring 9, in the state of reservoir 2 is not loaded into liquid storage canal 6, the tension force of spring 9 orders about top plug 3 between liquid bath bottom 201
Top fit with the bottom surface of reservoir 2, so that discharge orifice 4 is closed.Insert under the use state of liquid storage canal 6 in reservoir 2, top plug
3 bottom is pushed up plug limited block 5 and is withstood and cannot move downward, and spring 9 is compressed, and makes top fill in 3 top and the bottom surface of reservoir 2
Depart from, so that discharge orifice 4 is opened, realize connecting of reservoir 2 and liquid storage canal 6.
Liquid storage canal 6 bottom be provided be connected with submerged soil 12 lead canal 11, in order to make liquid level and submerged soil 12 in liquid storage canal 6
Interior liquid level is identical.The top of submerged soil 12 connects trumpet-shaped mist guide tube 20, the both ends open of mist guide tube 20, big opening end be subject to
Liquid bath 12 is connected, and the fine droplet after atomization ejects outward from little openend 13.It is provided with support 14 in submerged soil 12,
It is provided with imbibition medium 15, the lower surface of imbibition medium 15 is fitted with the bottom surface of submerged soil 12 inwall, the bottom of support 14 in the middle of frame 14
Leave gap between the bottom of portion and submerged soil 12, the liquid in submerged soil 12 can be allowed to flow in imbibition medium 15.Imbibition is situated between
Fitted with the lower surface of atomization unit in the upper surface of matter 15.
As shown in Figures 2 and 3, atomization unit includes micropore atomization piece 19 and is arranged on the piezoelectricity above micropore atomization piece 19
Potsherd 16.The centre of piezoelectric ceramic piece 16 has through hole, the micropore atomization piece below the through hole of piezoelectric ceramic piece 16
It is provided with little atomization through hole 1901 on 19.The making material of micropore atomization piece 19 can be metal, pottery even plastics, material
Selection under dither, whether there is enough intensity depending on it, in the present embodiment, the making of micropore atomization piece 19
Material is metal.Atomization through hole 1901 can be processed by multiple methods, first-selected laser or chemistry or electroetching.Atomization through hole 1901
Quantitative range can use one and arrives thousand of, and the thickness of micropore atomization piece 19 is less than more than 20 microns 400 microns, is atomized through hole
1901 aperture is less than more than 1 micron 300 microns, and in the present embodiment, the thickness of micropore atomization piece 19 is 100 microns, mist
The quantity changing through hole 1901 is 20, and the aperture of atomization through hole 1901 is 10 microns.Atomization through hole in micropore atomization piece 19
The imbibition medium 15 of 1901 lower sections is provided with groove 1501.Groove 1501 can store the transfer from imbibition medium 15 bottom and come up
Liquid, provides appropriate liquid supply rate for atomization unit.Atomization unit passes through the first wire 1701 and the second wire 1702 and outside
Ultrasonic oscillation circuit connect.It is provided with pressing plate 18 above atomization unit, be connected by screw 25 between pressing plate 18 and support 14,
So that piezoelectric ceramic piece 16, micropore atomization piece 19 and imbibition medium 15 three are in close contact.Screw is offered on pressing plate 18 lead to
Hole 24, support 14 offers screw fixed hole 23, and screw 25 is run through screwing through hole 24 and spun with screw fixed hole 23 screw thread,
Thus realizing the fixation of pressing plate 18 and support 14.
As shown in figure 1, leaving, between pressing plate 18 and mist guide tube 20 inwall, gap 21 of backflowing, leaving atomization unit and be sprayed onto and leading mist
Larger drop on pipe 20 can condense liquefaction on mist guide tube 20, and the tube wall along mist guide tube 20 flows to and backflows on gap 21,
By backflowing, gap 21 is flowed back in submerged soil 12.
Workflow explanation：
When reservoir 2 is not loaded into liquid storage canal 6, due to the elastic force effect of spring 9, the top of top plug 3 and the bottom of reservoir 2
The inwall laminating in portion, blocks discharge orifice 4, has broken off reservoir 2 and the connected relation of liquid storage canal 6.Now, open lid 1, toward storage
Adding liquid in liquid bath 2.Interpolation finishes, and tightens lid 1.
Reservoir 2 is loaded liquid storage canal 6, spring 9 is compressed, so that discharge orifice 4 is exposed, the liquid in reservoir 2 along
Discharge orifice 4 flows in liquid storage canal 6, and outside air enters liquid storage canal 6 by air pressure balance mouth 7 simultaneously, then passes through air inlet breach
28th, reservoir outlet 10 and discharge orifice 4 enter reservoir 2, realize the inside of reservoir 2 and the air pressure balance of liquid storage canal 6, make storage
Liquid in liquid bath 2 can continue the flowing in liquid storage canal 6.When the liquid level in liquid storage canal 6 rises above reservoir outlet 10
When, ambient atmos cannot enter in reservoir 2 by reservoir outlet 10, then the liquid in reservoir 2 just stops to liquid storage
Flowing in canal 6.Now the liquid level of whole ultrasonic atomizatio equipment be maintained for motionless, when outside sonic oscillation circuit is started working
When, the liquid level in submerged soil 12 declines, and the connection due to leading canal 11 acts on, and the liquid level of liquid storage canal 6 also declines, when liquid storage canal 6
The highest point that liquid level drops to liquid storage canal outlet 10 exposes liquid level, and air can enter reservoir 2 again in the manner described previously,
And then realize air pressure balance, the liquid in reservoir 2 just can flow in liquid storage canal 6, until the liquid level in liquid storage canal 6 is second highest again
Export 10 in liquid storage canal.And so on, be achieved that reservoir 2 according to user with liquid demand from trend liquid storage canal 6 additive liq
Function, and structure is simple, and whole-process automatic supply is it is not necessary to the external world gives electric energy or other active forces.
Connection due to leading canal 11 acts on, and liquid storage canal 6 can be identical with the liquid level of submerged soil 12.Imbibition medium 15 is to inhale
Receive and store the material of liquid, such as inkjet printing foam or porous fibrous material.The bottom of imbibition medium 15 absorbs and is subject to liquid
Liquid in groove 12, and the liquid absorbing is transferred to the top of imbibition medium 15.Atomization unit passes through imbibition medium 15
Groove 1501 obtains liquid, under supersonic oscillations circuit function, atomizes the liquid into as fine droplet, the spray toward in mist guide tube 20
Penetrate.From atomization unit fine droplet out, a part can be sprayed outward by the little openend 13 of mist guide tube 20, another part
Can be ejected on the inwall of mist guide tube 20, liquefaction assemble after along mist guide tube 20 inwall down landing, by pressing plate 18 with lead mist
Gap 21 of backflowing between pipe 20 is flowed back in submerged soil 12, is absorbed by imbibition medium 15 again.
Micropore atomization piece 19 in the present embodiment is contacted with imbibition medium 15, rather than directly connects with being atomized liquid
Touch.When the lower surface of micropore atomization piece 19 is contacted with the adsorbing medium reaching saturation state, micropore atomization piece 19 and imbibition
The surface that medium 15 contacts can be soaked by liquid, and then due to capillary effect, liquid can be by micropore atomization piece 19
Micropore, penetrates into upper surface from lower surface, and forms one layer of fluid film in upper surface.Excite through external ultrasonic oscillating circuit
Afterwards, micropore atomization piece 19 with CF vibration, and vibrational energy can be passed to fluid film, thus forming standing wave.Work as standing wave
Amplitude when reaching critical value, drop will eject from fluid film, and injection direction is perpendicular to micropore atomization piece 19
Upper surface.After atomization occurs, liquid continuously can be transported to top from the bottom of imbibition medium 15, finally penetrates into micro-
The upper surface of hole atomizing piece 19.With the consumption of liquid, the liquid level in submerged soil 12 and liquid storage canal 6 synchronously declines.Imbibition medium
15 can also serve as an efficient cooling system, for the heat produced by atomization unit that dissipates.
In the present embodiment, be provided with groove 1501 in the imbibition medium 15 below the micro-porous area of micropore atomization piece 19 so that
Described atomizer can be applied to high viscosity liquid.When being atomized high viscosity liquid using traditional ultrasonic ultrasonic delay line memory, micropore
Micropore on atomizing piece 19 is often blocked by sticky fluid film, and reason is that the supplementary speed of liquid is more than its atomization speed
Degree.On the other hand, this phenomenon also results in atomization unit and produces superheating phenomenon.In the present embodiment, recessed on imbibition medium 15
Groove 1501 can be used to control the speed of the liquid of the upper surface being transported to micropore atomization piece 19, can also keep micropore atomization simultaneously
The back pressure of piece 19 lower surface.Micropore on micropore atomization piece 19 can be considered capillary, by liquid from the following table of micropore atomization piece 19
Face is transported to upper surface.Because groove 1501 is located at the lower section of the opening area of atomizing piece, these capillaries can not be directly from suction
Liquid medium 15 extracts liquid.Therefore the supplementary speed of liquid and atomization speed balance each other, and inhibit the overheated of atomization unit.
Meanwhile, groove 1501 can also maintain micropore atomization piece 19 lower surface back pressure it is ensured that drop be injected in micropore atomization
The upper surface of piece 19 is carried out.These characteristics make this atomizer be applied to high viscosity liquid.The shape of the bottom surface of groove 1501,
The depth of size and groove 1501 can change according to different applications and liquid, thus adjust out being applied to various high viscosity liquid
The structure of body and atomization plant.
In the present embodiment, atomization unit by one group of piezoelectric ceramic piece 16 and micropore atomization piece 19 form it is also possible to
It is made up of the piezoelectric ceramic piece 16 of multigroup cascade and micropore atomization piece 19.Change group number can adjust atomization unit vibrations
Frequency, amplitude and mode of vibration, make atomization structure described in the present embodiment and the atomization plant can be with response external ultrasonic oscillation
The incentive action for 50kHz to 2MHz for the circuit vibration frequency range, concrete cascaded series number and vibration frequency depend on the viscous of liquid
Degree and the desired size of drop.
Imbibition medium 15 in the present embodiment can be straight cylinder or cuboid or six ribs in Fig. 1 and Fig. 2
Post, can also be as shown in figure 4, carry upstanding portion 1502 and bending part 1503.Because drop injection direction is vertical after atomization
Directly in the upper surface of micropore atomization piece 19, and the lower surface of micropore atomization piece 19 is the upper surface laminating with imbibition medium 15,
So changing the bending angle of the bending part 1503 of imbibition medium 15 it is possible to change the direction of hydrojet after atomization.
Mist guide tube 20 in Fig. 1 is collapsible tube, rather than traditional straight pipe.Because up-small and down-big contraction tubular type sets
Meter, the drop after atomization can be guided to required direction and reclaim large scale drop by mist guide tube 20.Those large-sized drops
To flow down along inwall after touching the inwall of mist guide tube 20, then flow back to submerged soil 12 through gap 21 of backflowing.The present embodiment
Mist guide tube 20 can be upright it is also possible to include vertical component and sweep, change the angle of bend of sweep,
Just from the vertical Way out arbitrarily changing little openend 13 to level, and then the hydrojet side of whole atomization plant can be changed
To.
It is appreciated that the shape of the groove 1501 in imbibition medium 15 is not limited only to column type, can also be that other are any
The sunk area of form.And the quantity of groove 1501 can for two, three even more many.The size of groove 1501 can be according to liquid
The performance of the viscosity of body and atomizer makes change.
The shape of micropore atomization piece 19, in addition to straight plain film as shown in Figure 1, can also be there is arc convex in Fig. 5
Micropore atomization piece 19.
Operation based on provided in an embodiment of the present invention ultrasonic atomization equipment will be briefly described below.
Fig. 6 is the schematic appearance of ultrasonic atomization equipment.Before starting atomizer, reservoir 2 has passed through to open
Upper lid 1, has been injected into high viscosity liquid.In the present embodiment, the viscosity of liquid used is about 200 centipoises.First, liquid can flow into
Liquid storage canal 6, then flows to submerged soil 12 by leading canal 11.Imbibition medium 15 starts the liquid absorbing in submerged soil 12 and is transported to
Micropore atomization piece 19, is finally reached a poised state, now the liquid level of submerged soil 12 and liquid storage canal 6 is equal.Work as key switch
After 22 connect, the ultrasonic vibration circuit having led to electricity exports ultrasonic excitation signals to atomization unit by wire 17.Annular
Piezoelectric ceramic piece 16 and micropore atomization piece 19 correspondingly with this ultrasonic frequency vibratory, and then eject the liquid of high viscosity liquid
Drip.The concussion frequency of the present embodiment is 120kHz, and the external diameter of ring-shaped piezo ceramic piece 16 and internal diameter are respectively 16mm and 8mm.Refer to
Show that lamp 27 can be LED light, can be used to indicate the working condition of this atomizer and battery electric quantity, charging inlet 26 can be
Mini-USB33 interface, for charging.
Herein " first ", " second " is used for the purpose of being distinguish between in description, not special implication.
It is to be understood that, above-mentioned specific embodiment is only presently preferred embodiments of the present invention and institute's application technology is former
Reason, in technical scope disclosed in this invention, change that any those familiar with the art is readily apparent that or
Replace, all should cover within the scope of the present invention.
Claims (10)
1. a kind of ultrasonic atomizatio structure is it is characterised in that including submerged soil (12), imbibition medium (15) and atomization unit, described
Imbibition medium (15) is arranged in submerged soil (12), and the bottom surface of described imbibition medium (15) is immersed in described submerged soil (12)
In liquid, during use, the liquid in submerged soil (12) is absorbed and is transported to described imbibition medium (15) by described imbibition medium (15)
Away from one end of bottom surface, described atomization unit is fitted away from one end of bottom surface with described imbibition medium (15)；Described imbibition medium
(15) one end away from bottom surface is provided with groove (1501).
2. ultrasonic atomizatio structure according to claim 1 is it is characterised in that described atomization unit includes piezoelectric ceramic piece
(16) and micropore atomization piece (19), described micropore atomization piece (19) is arranged on described piezoelectric ceramic piece (16) and is situated between near described imbibition
The side of matter (15), described micropore atomization piece (19) is fitted away from one end of bottom surface with described imbibition medium (15)；
Described piezoelectric ceramic piece (16) is provided with through hole, and the middle part of described micropore atomization piece (19) simultaneously corresponds to described through hole
Position offers atomization through hole (1901)；Described atomization through hole (1901) and the described groove (1501) of described imbibition medium (15)
Connection.
3. ultrasonic atomizatio structure according to claim 2 is it is characterised in that described micropore atomization piece (19) is tabular；
Or, the middle part of described micropore atomization piece (19) is provided with arc convex, and described atomization through hole (1901) is opened in described
Arc convex position.
4. ultrasonic atomizatio structure according to claim 1 is it is characterised in that described imbibition medium (15) steeps for inkjet printing
Foam.
5. ultrasonic atomizatio structure according to claim 1 is it is characterised in that described imbibition medium (15) is divided into is connected with each other
Upstanding portion (1502) and bending part (1503), the center line of described upstanding portion (1502) and horizontal plane, described
The center line of bending part (1503) and the angle of horizontal plane are less than more than 0 degree 90 degree.
6. ultrasonic atomizatio structure according to claim 1 is it is characterised in that also include ultrasonic oscillation circuit, described mist
Change unit to be connected with described ultrasonic oscillation circuit by wire (17).
7. ultrasonic atomizatio structure according to claim 1 is it is characterised in that also include support (14) and pressing plate (18),
It is provided with installation through-hole, described imbibition medium (15) is inserted in described installation through-hole, described in the middle of described support (14)
The inwall of frame (14) is fitted with the side wall of described imbibition medium (15), and the outer wall of described support (14) is solid with described submerged soil (12)
Fixed connection, is provided with conducting gap between the bottom surface of described support (14) and the bottom surface of inwall of described submerged soil (12)；
Described pressing plate (18) is arranged on the side away from described imbibition medium (15) for the described atomization unit, in described pressing plate (18)
Portion offers resigning through hole, and described pressing plate (18) and described support (14) are detachably connected, described pressing plate (18) and described support
(14) clamp described atomization unit.
8. a kind of ultrasonic atomizatio equipment it is characterised in that：Including the ultrasonic mist described in claim 1 to 7 any one claim
Change structure, also include mist guide tube (20)；Described mist guide tube (20) is the horn-like of both ends open, the opening greatly of described mist guide tube (20)
Mouth end is connected with the side wall of described submerged soil (12), and the inner side at the big opening end of described mist guide tube (20) is provided with gap of backflowing
(21).
9. ultrasonic atomizatio equipment according to claim 8 is it is characterised in that the little openend (13) of described mist guide tube (20)
The angle of center line and horizontal plane be less than more than 0 degree 90 degree.
10. ultrasonic atomizatio equipment according to claim 8 it is characterised in that also include reservoir (2), liquid storage canal (6) and
Top plug (3),
Reservoir (2) is arranged on the top of liquid storage canal (6), the lateral wall of bottom of reservoir (2) and the top of liquid storage canal (6)
Madial wall is fitted and is slidably connected；The top of reservoir (2) is provided with inlet, and described inlet is provided be detachably connected upper
Lid (1)；The bottom of reservoir (2) is provided with through hole；
The upper side of liquid storage canal (6) has air pressure balance mouth (7), and the bottom of liquid storage canal (6) is by leading canal (11) and submerged soil
(12) bottom is connected；The bottom of liquid storage canal (6) is provided with top plug limited block (5) and reservoir limited block (8), reservoir limited block
(8) leave air inlet breach (27) and liquid storage canal (6) bottom between；
The top on top plug (3) is internal in reservoir (2), and liquid storage trench bottom (201) simultaneously offers connection positioned at the lower section on top plug (3)
The discharge orifice (4) of liquid storage canal (6)；The bottom on top plug (3) is outside in reservoir (2), and the middle part on top plug (3) passes through liquid storage trench bottom
(201) through hole connects the top on top plug (3) and the bottom on top plug (3), the bottom on top plug (3) and the bottom of reservoir (2)
It is provided with the spring (9) for closing described discharge orifice (4), top plug limited block (5) extruding top plug (3), institute during use between outer wall
State spring (9) compression, described discharge orifice (4) is opened.
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| CN201610842366.2A CN106422005B (en) | 2016-09-22 | 2016-09-22 | Ultrasonic atomization structure and ultrasonic atomization equipment adopting same |
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|---|---|---|---|
| CN201610842366.2A CN106422005B (en) | 2016-09-22 | 2016-09-22 | Ultrasonic atomization structure and ultrasonic atomization equipment adopting same |
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