CN208641022U - Fluid supply unit and fine liquid drop spray driving device, generating device - Google Patents
Fluid supply unit and fine liquid drop spray driving device, generating device Download PDFInfo
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- CN208641022U CN208641022U CN201721355387.8U CN201721355387U CN208641022U CN 208641022 U CN208641022 U CN 208641022U CN 201721355387 U CN201721355387 U CN 201721355387U CN 208641022 U CN208641022 U CN 208641022U
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Abstract
The disclosure provides a kind of fluid supply unit and fine liquid drop spray driving device, generating device.The fluid supply unit includes: fluid injection portion and energy conduction piece, wherein the fluid injection portion and the energy conduction piece constitute at least partly chamber wall of the container of jet body to be painted；And the energy conduction piece is used to be in close contact with the terminal surface of piezoelectric actuator and generates vibration by driving, is sprayed by fluid injection portion to pass the fluid through and forms orientation microlayer model stream.The disclosure can be used for eye, oral cavity, nasal cavity, ear, skin and the accurate administration at other positions of body.
Description
Technical field
The utility model relates to droplet discharge technique fields, more particularly relate to the fluid supply unit of injection administration
And fine liquid drop spray driving device, generating device.
Background technique
Usually used drop delivery device, is administered by the way of instilling drug drop to body corresponding site.
It, which has, has disadvantages that, such as medical fluid cannot effectively reach disease sites or pharmaceutical quantities cannot be accurately controlled etc..With drop
It is larger due to squeezing the drug drop that oozes for the use for entering formula eyedrops, user can involuntary blink, lead to many
Medical fluid cannot effectively reach eyes.Therefore, on the one hand the administration mode of traditional drop is unable to control dosage, causes to waste；Separately
On the one hand the discomfort of user is also caused.
For the efficiency and ease of use for increasing administration, the drug delivery device of microfluidic spray has now been developed.It passes through company
Drug delivery device is connected to by connection device with atomising device, and once use, the interior spray chamber of atomising device is the residual for having drug, because
This can not be used for a long time；Also, the spraying driving element due to atomising device and ontology are monoblock type connection structure, after use only
It can be abandoning for monoblock type.
Utility model content
The brief overview about the disclosure is given below, in order to provide the basic of some aspects about the disclosure
Understand.It should be appreciated that this general introduction is not the exhaustive general introduction about the disclosure.It is not intended to determine the key of the disclosure
Or pith, it is also not intended to limit the scope of the present disclosure.Its purpose only provides certain concepts in simplified form, with this
As the preamble in greater detail discussed later.
The first purpose of the disclosure is to provide a kind of fluid supply unit and fine liquid drop spray driving device, generating device,
At least to overcome the above-mentioned problems in the prior art.
According to one aspect of the disclosure, a kind of fine liquid drop spray driving device is provided, comprising: shell, wherein can
Accommodate fluid supply unit；Piezoelectric actuator is fixed on the housing, is configured to one with the fluid supply unit
A outer wall is in close contact and drives the outer wall vibrations.
The piezoelectric actuator is standing wave formula piezoelectric actuator.
The standing wave formula piezoelectric actuator includes piezoelectric drive element and energy amplitude transformer, and energy amplitude transformer includes coaxial
Disk segments and cylindrical section, the head end face of disk segments connect piezoelectric drive element, and the terminal surface of cylindrical section is used to supply with the fluid
Unit is answered to be in close contact.
The fine liquid drop spray driving device further includes the guard mechanism being set on the shell, for opening or closing
The fluid injection portion of fluid supply unit.
A kind of fluid supply unit another aspect of the present disclosure provides, comprising: fluid injection portion and energy pass
Guide card, wherein the fluid injection portion and the energy conduction piece constitute at least partly chamber wall of the container of jet body to be painted；
And the energy conduction piece is used to be in close contact with the terminal surface of piezoelectric actuator and generates vibration by driving, to make fluid
It is sprayed via fluid injection portion and forms orientation microlayer model stream.
It further includes interface, for being connected to fluid storage units.
The fluid injection portion and the energy conduction piece are oppositely arranged on the container of the jet body to be painted.
The fluid injection portion is micro-spraying hole piece, and micro-spraying hole on piece has at least one spray orifice.
Still another aspect of the present disclosure provides a kind of fine liquid drop spray generating device, including described any
The combination of the fluid supply unit of the fine liquid drop spray driving device of form and any form.
The fluid supply unit and shell are detachably connected.
According to the fluid supply unit and fine liquid drop spray driving device, generating device of the disclosure, it is by fluid injection portion
Be arranged on fluid supply unit, and independently of driving device other than, fluid supply unit is individually replaced, and drive
Dynamic device can be used repeatedly in the case of converting fluid supply unit.The two can complement each other to form fine liquid drop spray hair
Generating apparatus can be avoided cross staining in use, driving device is not contacted with the medical fluid in fluid supply unit.
By the detailed description below in conjunction with attached drawing to the most preferred embodiment of the disclosure, the these and other of the disclosure is excellent
Point will be apparent from.
Detailed description of the invention
The disclosure can be by reference to being better understood, wherein in institute below in association with description given by attached drawing
Have and has used the same or similar appended drawing reference in attached drawing to indicate same or similar component.The attached drawing is together with following
It is described in detail together comprising in the present specification and forming a part of this specification, and is used to that this is further illustrated
Disclosed preferred embodiment and the principle and advantage for explaining the disclosure.Wherein:
Fig. 1 is a kind of schematic diagram of embodiment of the fine liquid drop spray driving device of the application；
Fig. 2 is a kind of schematic diagram of embodiment of the standing wave formula piezoelectric actuator of the application；
Fig. 3 is the schematic diagram of the another embodiment of the standing wave formula piezoelectric actuator of the application；
Fig. 4 is a kind of schematic diagram of the embodiment of the guiding light source setting of the application on the shell；
Fig. 5 is the schematic diagram that a kind of embodiment of shield mechanism is arranged on the shell of the application；
Fig. 6 is a kind of schematic diagram of specific embodiment of shield mechanism；
Fig. 7 is the schematic diagram of the another embodiment of shield mechanism；Shield mechanism is in close state；
Fig. 8 is the schematic diagram of the another embodiment of shield mechanism；Shield mechanism is in the open state；
Fig. 9 is a kind of schematic diagram of embodiment of the fluid supply unit of the application；
Figure 10 is the schematic diagram using a kind of embodiment of interface connecting fluid supply unit and fluid storage units；
A kind of structural schematic diagram of setting U-shaped card slot in Figure 11 fluid supply unit；
Figure 12 is the positional diagram of U-shaped card slot Yu fluid injection portion；
Figure 13 is a kind of schematic diagram of embodiment of the fine liquid drop spray generating device of the application；
Figure 14 is the schematic diagram of the another embodiment of the fine liquid drop spray generating device of the application；
Figure 15 is the schematic diagram of the third embodiment of the fine liquid drop spray generating device of the application；
Figure 16 is the structural schematic diagram that standing wave formula piezoelectric actuator is matched with the fluid supply unit of inner wrapping；
Figure 17 is the schematic diagram that eyedrops is sprayed target using the fine liquid drop spray generating device of the application；
Figure 18 is the schematic diagram of the 4th kind of embodiment of the fine liquid drop spray generating device of the application；
Figure 19 is one kind that fluid supply unit and shell are detachably connected in the fine liquid drop spray generating device of the application
Embodiment schematic diagram；
Figure 20 is a kind of embodiment schematic diagram that sensor is arranged on the fine liquid drop spray generating device of the application；
Figure 21 is the another embodiment schematic diagram that sensor is arranged on the fine liquid drop spray generating device of the application.
It will be appreciated by those skilled in the art that element in attached drawing is just for the sake of showing for the sake of simple and clear,
And be not necessarily drawn to scale.For example, the size of certain elements may be exaggerated relative to other elements in attached drawing, with
Just the understanding to the utility model embodiment is helped to improve.
Specific embodiment
It is described hereinafter in connection with exemplary embodiment of the attached drawing to the disclosure.For clarity and conciseness,
All features of actual implementation mode are not described in the description.It should be understood, however, that developing any this actual implementation
Much decisions specific to embodiment must be made during example, to realize the objectives of developer, for example, symbol
Restrictive condition those of related to system and business is closed, and these restrictive conditions may have with the difference of embodiment
Changed.In addition, it will also be appreciated that although development is likely to be extremely complex and time-consuming, to having benefited from the disclosure
For those skilled in the art of content, this development is only routine task.
Here, and also it should be noted is that, in order to avoid having obscured the disclosure because of unnecessary details, in the accompanying drawings
It illustrate only with according to the closely related apparatus structure of the scheme of the disclosure and/or processing step, and be omitted and the disclosure
The little other details of relationship.
It is discussed below to carry out in the following order:
1. fine liquid drop spray driving device
2. fluid supply unit
3. fine liquid drop spray generating device
1. fine liquid drop spray driving device
Fig. 1 is a kind of structural schematic diagram according to the fine liquid drop spray driving device 1 of the embodiment of the present disclosure.
It as shown in connection with fig. 1, may include shell 110 and pressure according to the fine liquid drop spray driving device 1 of the embodiment of the present disclosure
Electric actuator 120, piezoelectric actuator 120 are fixed on the shell 110.
Also, in conjunction with shown in Figure 19, shell 110 can be also used for accommodating fluid supply unit 2；Piezoelectric actuator 120
It is additionally configured to be in close contact with an outer wall of the fluid supply unit 2 and drives the outer wall vibrations.
As an example of the disclosure, the fine liquid drop spray driving device 1 can be individually present, and be used to be fluid
The driving source of the offer liquid injection of supply unit 2.Shell 110 may be used also in addition to that can be that piezoelectric actuator 120 provides and depends on space
To be used for connecting fluid supply unit 2, so that the relative position of piezoelectric actuator 120 Yu fluid supply unit 2 is limited, in space
On meet its close contact positional relationship.
The vibrating effect of the piezoelectric actuator 120 is related to its resonant frequency, in actual use, can be according to demand
It is selected.
The piezoelectric actuator 120 can be cymbal piezoelectric actuator, and in conjunction with shown in Figure 15, it includes being in structure
Intermediate piezoelectric drive element and the two panels cymbal thin plate in piezoelectric drive element two sides, the convex surface of cymbal thin plate is outside
End, bottom surface is connected with piezoelectric drive element；The resonant frequency of cymbal piezoelectric actuator and material, the thickness of piezoelectric drive element
It is related with diameter, it is also related with male part diameter with the material of cymbal thin plate and thickness and base diameter.
The piezoelectric actuator 120 can also be standing wave formula piezoelectric actuator.Standing wave is a kind of identical by two column amplitudes
The superposition ripple that coherent wave is formed when propagating in opposite direction on the same line.In order to meet the condition of standing wave formation, and can be
The energy output end of piezoelectric actuator obtains maximum displacement output, then to make the entirety of standing wave formula piezoelectric actuator oscillating component long
Degree is the integral multiple of ultrasonic wave half-wavelength or ultrasonic wave half-wavelength；And the wavelength of ultrasonic wave and the resonance frequency of piezoelectric drive element
It is related, therefore, in order to make piezoelectric drive element and driving source generate mechanical resonant to obtain maximum displacement output, need to choose sharp
The frequency for encouraging source is identical as the resonance frequency of piezoelectric drive element, to generate resonance.Due to the entire length of the oscillating component
Including at least two quarter-waves, and quarter-wave length between maximum amplitude point and adjacent node away from
From therefore, can be using node as being connected and fixed a little.
According to preferred embodiment of the present disclosure, in conjunction with Fig. 2 and standing wave formula piezoelectric actuator shown in Fig. 3, structure includes
Piezoelectric drive element 121 and energy amplitude transformer, the energy amplitude transformer can be for by coaxial disk segments 122 and cylindrical section 123
The integral piece of composition, piezoelectric drive element 121 are connected to 122 side of disk segments, and the output end of cylindrical section 123 is used to supply with fluid
Unit 2 is answered to be in close contact.
Further, as shown in connection with fig. 2, one section of annular can be set in the side close to cylindrical section 123 in disk segments 122
Groove 124 can realize the connection of piezoelectric actuator 120 and shell 110 by annular groove 124.
Shown in Fig. 3, an enlarged diameter section and a reduced diameter section is also can be set into disk segments 122, and enlarged diameter section can lean on
Nearly 121 side of piezoelectric drive element；Then one section of annular groove 124 can be set on reduced diameter section, as real with shell 110
The structure now connected.Enlarged diameter section can choose to be identical as the cross-sectional area of piezoelectric drive element 121, drive for transmitting piezoelectricity
The driving force of dynamic element 121, reduced diameter section can play the role of cumulative.
In accordance with an embodiment of the present disclosure, shell 110 can be connected by its internal clamping device and piezoelectric actuator 120
It connects, such as selects the annular groove 124 as bite.
In theory, if clamping device is connected at the vibration nodal point of energy amplitude transformer, to piezoelectric actuator 120
Vibrating effect influence be it is smaller, this perfect condition is extremely difficult in actual use.Therefore, as shown in Figures 2 and 3, clamp
The bite of mechanism can choose in disk segments 122 at the nearly node of 123 side of cylindrical section.
In order to keep the displacement of the vibration output end output of standing wave formula piezoelectric actuator maximum, to make fluid supply unit 2
Interior fluid obtains the motive force of more big displacement quantity, theoretically can choose piezoelectric drive element 121 and energy amplitude transformer
Length and be set as the integral multiple of ultrasonic wave half-wavelength or ultrasonic wave half-wavelength.Such as can by piezoelectric drive element 121 with
The length of disk segments 122 and it is set as n times of a quarter ultrasonic wavelength or a quarter ultrasonic wavelength, by cylindrical section
123 length is set as n times of 3/4ths ultrasonic wavelengths or 3/4ths ultrasonic wavelengths, and n is positive integer.This only from
The theoretical value considered in effect can according to need and be selected in practical applications.
In accordance with an embodiment of the present disclosure, in order to reach better cumulative and driving effect, the disk segments 122 of energy amplitude transformer
Length can select in the range of 1mm to 10mm, and diameter can select in the range of 5mm to 20mm；123 length of cylindrical section
It can be selected in the range of 5mm to 15mm, diameter can select in the range of 2mm to 6mm；Corresponding excitation source frequency exists
It is selected between 50KHz-200KHz.It, can be by piezoelectricity capable of being made to cause for the practical matched combined of disk segments 122 and cylindrical section 123
The maximum constraint condition of output displacement of dynamic device is selected；And the frequency of driving source can comprehensively consider piezoelectric drive element
It is selected after 121 resonance frequency and the design size of energy amplitude transformer.
In order to reduce the energy loss in vibration transmission process, and promote the resonant frequency band of piezoelectric actuator 120
Width, can be with the rounded portion transition of indent at the abrupt change of cross-section between disk segments 122 and cylindrical section 123.Such as make cylindrical section 123
An end cross-sectional area be gradually increased, engaged until with disk segments 122, thus formed by cylindrical section 123 to the chamfering of disk segments 122
Transition.
In accordance with an embodiment of the present disclosure, as shown in figure 4, guiding light source 130 can also be arranged, to help injection target to carry out
Self is positioned relative to the position of injection apparatus.
Guiding light source 130, which can choose, to be arranged on shell 110, such as may be on the front cover of shell 110, and can be with
It is further disposed at position corresponding with the fluid injection portion of fluid supply unit 2, such as the periphery corresponding to fluid injection portion
Region.
Guiding light source 130 also can choose be arranged in it is other be able to guide in the structure that injection target is positioned, if by
Injection person can perceive specific jet port present position, to as far as possible just reach injection target and jet port to just
Purpose of design.
Guiding light source 130 as an example, can be configured to an annular light belt, be connected to shell 110 by Fig. 4
On front cover, and the peripheral position corresponding to fluid injection portion can be looped around.
So that drug delivery device and injection target is in correct relative position is the key that preferable realize sprays administration.Example
When such as, to ophthalmic administration, to make the jet port and eyes face of drug delivery device.To prevent from damaging eyes, the disclosure
Guide light source 130 effectively can assist to position using soft, the non-stimulated light source with fanout free region.It is especially suitable to guide light source 130
Positioning when being administered is assisted for other people, such as by the way that via the light reflected on user's eyeball, spray appropriate is found in judgement
Penetrate position.
User's may also rely on other than the guiding of guiding light source 130 for the eye spraying voluntarily used
Suitable position is found in practice as early as possible.For example, the injection of one medicament for the eyes, needs injection apparatus apart from about 2~5 centimetres of eyes, lead to
After use several times, user can be found by the relative position of palm and face than better suited eject position.
After use, nozzle is caused various forms of fluid supply unit 2 in air due to exposure in order to prevent
Pollution, according to one embodiment of the disclosure, as shown in figure 5, a shield mechanism 140 can also be arranged on shell 110.Example
Such as, the structure of shell 110 itself may include a front cover, and front cover may be at the fluid injection portion of fluid supply unit 2
Front, and hole is opened in the position for corresponding to fluid injection portion.Shield mechanism 140, which can use, to lead to described in opening and closing of fault
The design form in hole, opens or closes the fluid injection portion of fluid supply unit 2, guarantee under device non-working condition with external rings
Border keeps apart.
Further, as shown in connection with fig. 6, the specific implementation form of shield mechanism 140 can include elastic construction for one
141 outer cover can make one end of spring be fixed on shell 110 by connector when elastic construction 141 is selected as spring
On, other end connecting lid.Under normal condition, spring is in elongation state, and outer cover just closes fluid injection portion；Pressing is outer
Lid makes spring-compressed, exposes the through-hole of shell 110, can open fluid injection portion；Spring can also be natural after losing pressed by external force
It restores to the original state, then fluid injection portion is closed, protect micro-spraying hole piece not contaminated.
In specific implementation, the function of shield mechanism 140 is not necessarily to realize by the flexible characte of spring, can also lead to
Flexible torque structure is crossed to realize.
In addition, referring to figs. 7 and 8, shield mechanism 140 can also be realized by a slip lid.For example, can be
Sliding slot is set on shell 110, slip lid is enable to slide up and down along sliding slot, to open or close fluid injection portion.Fig. 7 institute
Show, is the schematic diagram that slip lid shield lives fluid injection portion；In use, slip lid is glided, as shown in figure 8, to open fluid injection
The schematic diagram in portion.
The slip lid is also used as judging whether the foundation that injection misses, if slip lid is closed, sensor can be transmitted and be closed
Signal is closed to corresponding controller, controller closes the function of injection cock accordingly, thus prevent waste caused by error starting and
Device internal contamination.
2. fluid supply unit
According to one embodiment of the disclosure, a kind of fluid supply unit 2 is also provided.
As shown in figure 9, the fluid supply unit 2 includes: fluid injection portion 210 and energy conduction piece 220, wherein
The fluid injection portion 210 and the energy conduction piece 220 constitute at least partly chamber wall of the container of jet body to be painted；And
The energy conduction piece 220 is used to be in close contact with the terminal surface of piezoelectric actuator 120 and generates vibration by driving, to make to flow
Body sprays via fluid injection portion 210 and forms orientation microlayer model stream.
According to the disclosure, fluid is accommodated by a container in fluid supply unit 2, the energy conduction on chamber wall
Piece 220 generates vibration after being used to receive the vibrational energy of piezoelectric actuator 120, to push internal fluid via fluid injection
Portion 210, which sprays, forms microlayer model stream.
The fluid supply unit 2 can be used as a self-existent structure, both can be convenient carrying；It again can be by
It needs to replace.Fluid supply unit 2 can be arranged to inner wrapping according to dosage, the medical fluid for keeping it internal is in service life appropriate
It uses up, so as to cost-effective using the medical fluid for not adding preservative, does not cause to waste.
Fluid in the fluid supply unit 2, such as medical fluid can be loaded in qualified pharmaceutical factory and be completed, and cooperate micro- liquid
It drips jeting driving device 1 to use, as shown in figure 17 as a kind of schematic diagram of medicament for the eyes injection.
The dosimetry parameter of 2 content of fluid supply unit can be adjusted according to individual agent and be set, and can also set unified dosage
Concentration.The capacity of fluid supply unit 2 can be big, dropping device such as on the market；Can also be small, meet without preservative
Demand.
According to preferred embodiment of the present disclosure, fluid supply unit 2 can also include interface 230.For example, for being arranged to
The fluid supply unit 2 of inner wrapping, after its internal flow is finished, as shown in Figure 10, can by interface 230 in addition match
The fluid storage units 3 set are connected to, to supplement supply.
Further, as shown in connection with fig. 10, the specific structure of interface 230 may include connection forcing piece 231, connect packing
The function of part 231 be in order to enable to form closed connection between the container of jet body to be painted and fluid storage units 3, without
As for fluid is in contact in flow process with outside air, generates property and change.
The interface 230 can further include puncture portion 232, and puncture portion 232 can be used to puncture fluid reservoir deposit receipt
The closed outlet of member 3, the fluid for keeping it internal are got enter into the container of jet body to be painted.The puncture portion 232 can adopt
With siphon ventilating structure (not shown), enable fluid to move smoothly through puncture portion 232 and flow out to fluid supply unit.
In accordance with an embodiment of the present disclosure, it connects and can be buckle-type connection between forcing piece 231 and fluid storage units 3；
It can also be attached using helicitic texture.
According to preferred embodiment of the present disclosure, in order to reach better jeting effect, it is desirable to reduce driving energy is in container
Internal loss, therefore can choose the relatively short position of transmission path fluid injection portion 210 and energy conduction piece is arranged
220.For example, the position of sound production that the two is just opposite on the chamber wall of jet body to be painted, as shown in Figure 9.
Fluid injection portion 210 and energy conduction piece 220 are arranged in other positions in fact, and the spray of fluid also may be implemented
It penetrates.Such as the two is arranged on the adjacent surface of the chamber wall, when the vibrated extruding container inside stream of energy conduction piece 220
When body, it can equally make fluid injection and go out.
According to the disclosure, fluid injection portion 210 can be realized using micro-spraying hole piece, as shown in Figure 9.The micro-spraying hole piece
It can be made of following one kind material: metal, high molecular material, ceramic material or monocrystal material.Wherein metal material packet
Include but be not limited to stainless steel, nickel, nickel cobalt (alloy) etc.；High molecular material, such as polyether-ether-ketone (PEEK)；Ceramic material, such as oxygen
Change aluminium, zirconium oxide etc.；Monocrystal material, such as sapphire, silicon carbide etc..
A spray orifice will be at least arranged in the micro-spraying hole on piece, to spray fluid.
The quantity of spray orifice, can in conjunction with the size at injection target position, the jeting effect to be reached and source driving force it is big
It is small to carry out comprehensively considering determination.For there is the micro-spraying hole piece of multiple spray orifices, multiple spray orifices can use multiple rule or irregular
Arrangement form.For example, multiple spray orifices can use the form of honeycomb equidistant arrangement.
According to preferred embodiment of the present disclosure, for the setting form of multiple spray orifices, in order to make the orientation microlayer model sprayed
Stream can Relatively centralized in a certain range, generate better jeting effect for injection target, can micro-spraying hole on piece with
Center is origin, is distributed in the region of diameter 1mm to 10mm, and it is 5 microns to 200 microns that the diameter of spray orifice, which can choose,.
Comprehensive selection is carried out to nozzle hole number and injection diameter, the Fluid Volume that micro-spraying hole piece can be made to spray every time is micro- 1
It rises within the scope of~200 microlitres.The case where being eyedrops for fluid, experiments verify that, which can satisfy removing damage
Effective agent amount required for eyeball after losing.
The preferred value for the Fluid Volume that micro-spraying hole piece sprays every time is 8 microlitres~15 microlitres.
The further preferred value for the Fluid Volume that micro-spraying hole piece sprays every time is 10 microlitres.
In order to preferably generate orientation microlayer model stream, the structure of the spray orifice should meet, can produce when fluid passes through
Raw Laminar Flow, and reversed air stream can be reduced during generating and orienting microlayer model stream.It is wanted to meet this
It asks, spray orifice can be made to be shaped to and gradually changed by container inner wall side to outer wall side diameter, for example, entering the fluid of spray orifice
Mouth end diameter is greater than fluid outlet diameter.Further, spray orifice can be shaped to taper, and make its side wall to hole
Central side is formed by bending arcwall.
In addition, for the guiding light source 130 being arranged on the shell 110 of fine liquid drop spray driving device 1, as a kind of replacement
Form also can choose and be arranged in micro-spraying hole on piece；And further, it is possible to which guiding light source 130 is formed a ring of light, selection
The periphery in spray orifice region is set.
In accordance with an embodiment of the present disclosure, in order to improving the ejection efficiency of fluid, remain it less on the wall, it can
Hydrophobic layer is arranged in the sidewall surfaces of spray orifice；It, can or in order to reduce outflow of the fluid in non-ejection state by spray orifice to the greatest extent
Hydrophilic layer is arranged in the sidewall surfaces of spray orifice.The setting of hydrophobic layer or hydrophilic layer is provided to make micro-spraying hole piece with good
Bio-compatibility.
Further, hydrophobic layer or hydrophilic layer can be the coating newly increased.For example, by using metal, cermet or ceramics
The coating that material is added.Wherein metal, such as gold, palladium, platinum, titanium, tin-cobalt alloy；Cermet such as chromium carbide.
Hydrophobic layer or hydrophilic layer can also carry out material modification acquisition by the sidewall surfaces to spray orifice.
According to preferred embodiment of the present disclosure, for example, the material of micro-spraying hole piece can choose nickel cobalt (alloy), the side of spray orifice
Wall surface can increase chromium carbide or gold plating, to obtain any surface finish, the hydrophily spray orifice with good biological compatibility
Surface.
Or in order to increase the hydrophobicity of injection hole surface, such as Teflon coating can be coated in the sidewall surfaces of spray orifice.
To spray orifice sidewall surfaces carry out material modification, can be spray orifice surface structure nanosizing, can also reach it is hydrophobic or
Hydrophilic purpose.
Micro-spraying hole piece is made using aluminum material for example, can choose, by the sidewall surfaces aluminium of spray orifice through anodized
Alumina flake is obtained, hydrophilic coating is formed.
The spray orifice can be obtained using following one kind machining mode: such as drilling, punching press or shearing.
Or spray orifice can be obtained using following one kind on-mechanical processing method: the electrochemical means such as electroforming, etching；Swash
Light is burnt or the means such as ablation.
In accordance with an embodiment of the present disclosure, in order to guarantee the safe application performance of 2 internal flow of fluid supply unit, need by
It is isolated with free surrounding space.A closed space will be namely formed within spray orifice.
For example, removable superficial layer can be arranged on spray orifice, superficial layer is covered on the outer surface of micro-spraying hole piece, sealing
All spray orifices.In use, removing.
Alternatively, setting sealing film, for sealing each spray orifice respectively；The sealing film is in container when fluid compression
Rupture.
Again alternatively, one layer of sealed wall can be arranged in the container of jet body to be painted, the container intracavity is divided into and is leaned on
The inlet zone of the fluid storage area of nearly piezoelectric actuator and close fluid injection portion.In original state, fluid storage is in fluid reservoir
Area is deposited, when fluid is pressurized, the sealed wall is pushed to rupture.
In accordance with an embodiment of the present disclosure, the shape of energy conduction piece 220 can be diversified, such as flat, recessed,
Convex or cambered surface etc. can satisfy the requirement under different situations respectively.
For example, can choose energy conduction piece 220 is writing board shape, as shown in Figure 15 and Figure 16.Writing board shape energy passes
Guide card 220 can be used for being used cooperatively with cymbal piezoelectric actuator, as shown in figure 15；It can also match with standing wave formula piezoelectric actuator
It closes and uses, as shown in figure 16.
The shape of the energy conduction piece 220 may also is that with the shape being recessed to fluid side, the bottom table of recess
Face is configured to be in close contact with piezoelectric actuator terminal surface, accepts vibrational energy.It can be used for causing with standing wave formula piezoelectricity
Dynamic device is used cooperatively, as shown in Figure 13 and Figure 14.
In order to make energy conductive sheet 220 that there is enough intensity, and the loss in energy transfer process can be reduced to the greatest extent, it can
To be made of the sheet metal of 0.01mm to 0.2mm thickness.
According to preferred embodiment of the present disclosure, energy conduction piece 220 can use the 316L stainless steel material of 0.05mm thickness
It is made.
Or energy conduction piece 220 can also be made of the non-metallic film of 0.01mm to 0.1mm thickness.
Preferably, energy conduction piece 220 can be made of the natural emulsion film of 0.04mm thickness.
In accordance with an embodiment of the present disclosure, in conjunction with shown in Figure 11 and Figure 12, fluid supply unit can also include a U-shaped card
Slot 240, the U-shaped card slot 240 can be set on the container inner wall surface of the jet body to be painted, and in fluid injection portion
Periphery retains space for provide micro fluid.It is insufficient in the container internal flow of jet body to be painted, it only remains seldom
When dosage, a small amount of fluid can be made since surface tension effects rest in U-shaped card slot 240 by way of shaking, thus close
Fluid injection portion 210 is conducive to improve injection utilization rate, and reduces residual waste.
3. fine liquid drop spray generating device
Another embodiment of the application provides a kind of fine liquid drop spray generating device 4.
In conjunction with shown in Figure 13, Figure 14 and Figure 15, fine liquid drop spray generating device 4 can be fine liquid drop spray driving device 1
Any specific embodiment and fluid supply unit 2 any specific embodiment combination.It is whole in conjunction with one fluid injection of rear formation
Body.
Fine liquid drop spray driving device 1 can be connect with fluid supply unit 2 by dismountable mode, to facilitate fluid
The replacement of supply unit 2, and keep the relative positional relationship of piezoelectric actuator 120 and energy conduction piece 220 restrained, thus
It contacts with each other, preferably transmits vibrational energy.
It in accordance with an embodiment of the present disclosure, can be preferably with the stream of writing board shape energy conduction piece 220 in conjunction with shown in Figure 15
Body supply unit 2 is combined with the fine liquid drop spray driving device 1 for including cymbal piezoelectric actuator, forms fine liquid drop spray
Device 4.The convex surface of a piece of cymbal thin plate of cymbal piezoelectric actuator is in close contact as driving end and energy conduction piece 220.
It is that fluid supply unit 2 is caused with including standing wave formula piezoelectricity in conjunction with shown in Figure 13 according to the another embodiment of the disclosure
The example that the fine liquid drop spray driving device 1 of dynamic device combines, 123 end of cylindrical section of standing wave formula piezoelectric actuator can be made
It is in close contact for output end and energy conduction piece 220.The shape of energy conduction piece 220 can be to be recessed to fluid side, recess
The size at position can just match the output end of cylindrical section 123.Annular groove 124 can be set on cylindrical section 123, annular is recessed
Slot 124 is in close to the position of disk segments 122, and the clamping device of shell 110 can connect on annular groove 124.
According to the another embodiment of the disclosure, fine liquid drop spray generating device 4 as shown in figure 14 it is different from Figure 13's it
It is in annular groove 124 is arranged in disk segments 122, and in the position close to cylindrical section 123, shell 110 can pass through
Clamping machine is connected on annular groove 124.
Shown in Figure 16, being includes the fine liquid drop spray driving device 1 of standing wave formula piezoelectric actuator and a kind of stream of inner wrapping
The example that body supply unit 2 combines.Since the internal volume of fluid supply unit 2 is relatively small, it is possible to select writing board shape
Energy conduction piece 220.In order to reduce the fluid wastage in small space, its internal fluid injection dead angle is reduced to the greatest extent, it can be with
Selection keeps the shapes and sizes of fluid injection portion 210 and energy conduction piece 220 all identical, and almost forms fluid supply unit 2
The chamber wall in whole length direction, while making the two in the position of direct face；In this way, increasing driving force and content
Acting surface can reduce residual.
It, can be same by micro-spraying hole piece, energy conduction piece 220 and piezoelectric actuator 120 in order to reach better jeting effect
Axis setting, such as corresponding construction shown in Figure 13 to Figure 17.Coaxially, driving force can be made more directly to pass to fluid, made
Fluid is sprayed behind relatively short path by spray orifice.
The distance between micro-spraying hole piece and energy conduction piece 220 also will affect the transmitting of energy, and when getting too close to, fluid is mended
The speed filled may have little time, and then influence the effect of injection；Volume simultaneously between small spacing is too small, is not also suitable for larger appearance
The case where product supply, uses；If spacing is excessive, and will increase the loss of energy, jeting effect is also influenced.
In accordance with an embodiment of the present disclosure, micro-spraying hole piece and energy can be selected within the scope of 0~3mm according to actual needs
Measure the distance between conductive sheet 220.The selection of the distance and the size of driving force, the jet velocity to be reached, injection drop
Diameter and deposition in target it is related.With the raising of driving voltage, the spacing of the two can be increased suitably.
Preferred spacing between micro-spraying hole piece and energy conduction piece 220 is 0.2~0.8mm.
It is microlayer model in the case of micro-spraying hole piece, energy conduction piece 220 and piezoelectric actuator 120 are coaxially disposed shown in Figure 17
Schematic diagram of the injecting-generating device 4 to target injection eyedrops.Drop stream is substantially distributed in face eye it can be seen from Figure 17
In the range of ball, the jeting effect that has help to obtain.
In accordance with an embodiment of the present disclosure, by selection driving voltage and spray orifice size, target initial velocity and big can be generated
Small drop.For example, selection driving voltage so that fluid injection portion 210 generate microlayer model stream initial velocity 0.5m/s~
Within the scope of 20m/s；In conjunction with the selection to spray orifice size, liquid-drop diameter is made to be greater than 15 microns；In conjunction with to injection target position
Adjustment, at least the 70% of microlayer model current mass can be made to be deposited in target.
Alternatively, energy conductive sheet 220 and piezoelectric actuator 120 can be in close contact, it is equidistant that spray orifice is designed as honeycomb
Arrangement, by select to design parameter, to generate target velocity 0.5m/s~10m/s, average diameter size for 10 microns~
100 microns of microlayer model.
According to the still another embodiment of the disclosure, the diameter that can choose spray orifice is 35 microns, makes the initial flat of fluid
Equal jet velocity is 10m/s, injection administration distance 20mm, to reach the deposition fraction of fluid 70% in injection target.
According to the still another embodiment of the disclosure, the case where for containing polyvinyl alcohol fluid in fluid supply unit 2,
Micro-spraying hole piece, energy conduction piece 220 and piezoelectric actuator 120 can be coaxially disposed, make micro-spraying hole piece and energy conduction piece 220
Between at a distance of 0.2-0.3mm；Micro-spraying hole piece made of nickel-containing material is selected, and can choose tin-cobalt alloy coating as spray orifice table
The coating in face prevents the interior nickel of micro-spraying hole sheet material to be precipitated, liquid medicine is caused to pollute.
It is another specific embodiment of fine liquid drop spray generating device 4, using standing wave formula piezoelectric actuator shown in Figure 18
It is matched with the energy conduction piece 220 with concave shape；The container of jet body to be painted passes through connection forcing piece 231 and fluid reservoir
Memory cell 3 connects, and connection type can be buckle-type and be also possible to screw-type；Fluid storage units 3 are pierced by puncture portion 232
It is broken, realize fluid storage units 3 and the reservoir.
It is eyedrops in the embodiment of one application interface 230, such as fluid supply unit 2, by interface 230 by fluid
Supply unit 2 is combined with commercially available dropping device for eye medicine.As shown in figure 18, one can be arranged in the top of fluid supply unit 2
A aperture is combined with the connection forcing piece 231 of silica gel material in aperture, can connect puncture portion on connection forcing piece 231
232；After obtaining commercially available dropping device for eye medicine, its bottle cap is opened, drop head is then used and connects forcing piece 231 to positive,
Under the guiding for connecting forcing piece 231, puncture portion 232 is pierced into drop head and the reaming out, and after the two intercommunication, medical fluid is introduced into stream
In body supply unit 2.
Shown in Figure 19, it is another specific embodiment of fine liquid drop spray generating device 4, is provided with and is used on shell 110
The structure for installing fluid supply unit 2, can be realized being detachably connected for fluid supply unit 2, and can make fluid supply unit 2
It is in close contact with the end of piezoelectric actuator 120；The position in fluid injection portion 210 corresponds to the aperture reserved on shell 110；Outside
Clamping device on shell 110 is connected in disk segments 122.
In accordance with an embodiment of the present disclosure, in conjunction with shown in Figure 20 and Figure 21, fine liquid drop spray generating device 4 can also include passing
Sensor 410 detects whether the guard mechanism 140 is opened by sensor 410, then will test signal and pass to controller；
If controller receives 140 open signal of guard mechanism, when hydrojet switch is pressed, controller controls piezoelectric actuator 120
Can be powered generation vibration, carry out hydrojet；If controller receives 140 shutdown signal of guard mechanism, controller can export resistance
The only control signal that piezoelectric actuator 120 is powered can not also start injection even if hydrojet switch is pressed.It can effectively prevent
Accidentally spray.
Sensor 410 can be set on the inner wall of shell 110, and the verge of opening reserved on shell 110.
Since the disclosure uses in the state that outside is bright, so sensor 410 can use photosensitive element, such as light
Quick resistance realizes, as shown in figure 21.
Sensor 410 can also be realized using Hall element, and magnet 142 and Hall can be arranged on guard mechanism 140
Element cooperates the position to judge guard mechanism 140, determines whether guard mechanism 140 is opened.The setting position of magnet 142 can be with
It is: corresponding with the position of Hall element under 140 closed state of guard mechanism.
Below for for the market survey for spraying dosage: by taking medicament for the eyes as an example, commercially available five kinds of ophthalmic products are investigated,
Data are as shown in the table.
It is reported that the specific gravity of eyedrops is worked as with water phase.It is shown by data in table, every drop volume of commercially available eye drop device is about 31
~37 microlitres or so.In use, about 50%~90% medical fluid can be lost, that is to say, that only about 3.1~18.5 is micro-
The medical fluid risen can enter eyes.Have a document representation, the medical fluid that eyeball can be possessed about at 7 microlitres or so, this value is located at 3.1~
Between 18.5, therefore, setting each preferred effective dosage to be at least 7 microlitres is reasonably to estimate.In addition, it is contemplated that this
The disclosed attainable effective jet deposition amount minimum 70% of fine liquid drop spray generating device, if therefore using commercially available medicament for the eyes
If the composition of water, the disclosure should have the ability once to spray about 10 microlitres of dosage, to meet the dosage of existing eye drop device,
I.e. primary injection is approximately equal to a drop.
In the case where the concentration of liquid medicine effective component, the dosage sprayed every time can be less.
Table
The technical solution of the disclosure removes the administration in eyedrops that can be applied to eye, applies also for oral cavity, nasal cavity, ear, skin
The accurate administration at skin and other positions of body.
To sum up, embodiment according to the present utility model, the utility model provide following technical solution, but not limited to this:
Technical solution 1, a kind of fine liquid drop spray driving device, comprising:
Shell, wherein fluid supply unit can be accommodated；
Piezoelectric actuator is fixed on the housing, is configured to tight with an outer wall of the fluid supply unit
Contiguity is touched and drives the outer wall vibrations.
Technical solution 2, fine liquid drop spray driving device according to technical solution 1, the piezoelectric actuator are standing wave
Formula piezoelectric actuator.
Technical solution 3, fine liquid drop spray driving device according to technical solution 1, the piezoelectric actuator are cymbal
Piezoelectric actuator.
Technical solution 4, the fine liquid drop spray driving device according to technical solution 2,
The standing wave formula piezoelectric actuator includes piezoelectric drive element and energy amplitude transformer, and energy amplitude transformer includes coaxial
Disk segments and cylindrical section, the head end face of disk segments connect piezoelectric drive element, and the terminal surface of cylindrical section is used to supply with the fluid
Unit is answered to be in close contact.
Technical solution 5, the fine liquid drop spray driving device according to technical solution 4,
With the rounded portion transition of indent between the cylindrical section and the disk segments.
Technical solution 6, the fine liquid drop spray driving device according to any one of technical solution 1~5, further includes:
Light source is guided, for the guidance positioning to injection target.
Technical solution 7, the fine liquid drop spray driving device according to any one of technical solution 1~6, further includes:
The guard mechanism being set on the shell, for opening or closing the fluid injection portion of fluid supply unit.
Technical solution 8, the fine liquid drop spray driving device according to technical solution 7,
The guard mechanism is the outer cover for including elastic construction, it is realized using the elasticity of elastic construction to fluid ejection section
Open or close.
Technical solution 9, a kind of fluid supply unit, comprising:
Fluid injection portion and energy conduction piece,
Wherein, the fluid injection portion and the energy conduction piece constitute at least partly container of the container of jet body to be painted
Wall；And
The energy conduction piece is used to be in close contact with the terminal surface of piezoelectric actuator and generates vibration by driving, to make
Fluid sprays via fluid injection portion and forms orientation microlayer model stream.
Technical solution 10, the fluid supply unit according to technical solution 9, further includes:
Interface, for being connected to fluid storage units.
Technical solution 11, the fluid supply unit according to technical solution 10,
The interface includes connection forcing piece, and the container for guiding fluid storage units and the jet body to be painted is formed
Airtight connection.
Technical solution 12, the fluid supply unit according to technical solution 11,
The interface further includes puncture portion, for puncturing fluid storage units to realize connection.
Technical solution 13, the fluid supply unit according to any one of technical solution 9~12, the fluid injection portion
It is oppositely arranged on the container of the jet body to be painted with the energy conduction piece.
Technical solution 14, the fluid supply unit according to any one of technical solution 9~13, the fluid injection portion
For micro-spraying hole piece, micro-spraying hole on piece has at least one spray orifice.
Technical solution 15, the fluid supply unit according to technical solution 14, the spray orifice is in micro-spraying hole on piece in
It is distributed in the region that the heart is origin diameter 1mm to 10mm, the diameter of spray orifice is 5 microns to 200 microns.
Technical solution 16, the fluid supply unit according to technical solution 14 or 15, the fluid inlet end of the spray orifice
Diameter is greater than fluid outlet diameter.
Technical solution 17, the fluid supply unit according to technical solution 16, the spray orifice be bellmouth, side wall to
Hole central side is formed by bending arcwall.
Technical solution 18, the fluid supply unit according to any one of technical solution 14~17,
The sidewall surfaces of the spray orifice have hydrophobic layer or hydrophilic layer.
Technical solution 19, the fluid supply unit according to technical solution 18,
The hydrophobic layer or hydrophilic layer are by carrying out material modification acquisition to spray orifice sidewall surfaces.
Technical solution 20, the fluid supply unit according to any one of technical solution 9~19,
It further include U-shaped card slot, the U-shaped card slot is set to the container inner wall surface of the jet body to be painted, and in stream
The periphery of body ejection section retains space for provide micro fluid.
Technical solution 21, the fluid supply unit according to any one of technical solution 9~20,
The energy conduction piece is made of the sheet metal of 0.01mm to 0.2mm thickness.
Technical solution 22, the fluid supply unit according to any one of technical solution 9~20,
The energy conduction piece is made of the non-metallic film of 0.01mm to 0.1mm thickness.
Technical solution 23, a kind of fine liquid drop spray generating device, including micro- liquid described in any one of technical solution 1~8
Drip fluid supply unit described in any one of jeting driving device and technical solution 9~22.
Technical solution 24, the fine liquid drop spray generating device according to technical solution 23,
The fluid supply unit and shell are detachably connected.
Technical solution 25, the fine liquid drop spray generating device according to technical solution 23 or 24, further include sensor and
Controller, wherein
Sensor will test signal and pass to controller for detecting whether the guard mechanism is opened, and controller exists
In the state that guard mechanism is opened, control piezoelectric actuator, which is powered, generates vibration, and then driving energy conductive sheet is vibrated.
Technical solution 26, the fine liquid drop spray generating device according to any one of technical solution 23~25,
The micro-spraying hole piece, energy conduction piece and piezoelectric actuator coaxial arrangement, between micro-spraying hole piece and energy conduction piece
At a distance of 0~3mm.
Technical solution 27, the fine liquid drop spray generating device according to technical solution 26,
At a distance of 0.2~0.8mm between micro-spraying hole piece and energy conduction piece
Finally, it is to be noted that, in the present invention, such as relationship of left and right, first and second or the like
Term is only used to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying
There are any actual relationship or orders between these entities or operation.Moreover, the terms "include", "comprise" or its
Any other variant is intended to non-exclusive inclusion so that include the process, methods of a series of elements, article or
Equipment not only includes those elements, but also including other elements that are not explicitly listed, or further include for this process,
Method, article or the intrinsic element of equipment.In the absence of more restrictions, being limited by sentence "including a ..."
Element, it is not excluded that there is also other identical elements in the process, method, article or apparatus that includes the element.
Although being had been disclosed above by the description of specific embodiment of the utility model to the utility model,
It is, it should be appreciated that those skilled in the art can design in the spirit and scope of the appended claims to each of the utility model
Kind modification, improvement or equivalent.These modifications improve or equivalent should also be as being to be considered as included in the utility model and be wanted
In the range of asking protection.
Claims (27)
1. a kind of fine liquid drop spray driving device, characterized by comprising:
Shell, wherein fluid supply unit can be accommodated；
Piezoelectric actuator is fixed on the housing, is configured to closely connect with an outer wall of the fluid supply unit
It touches and drives the outer wall vibrations.
2. fine liquid drop spray driving device according to claim 1, it is characterised in that:
The piezoelectric actuator is standing wave formula piezoelectric actuator.
3. fine liquid drop spray driving device according to claim 1, it is characterised in that:
The piezoelectric actuator is cymbal piezoelectric actuator.
4. fine liquid drop spray driving device according to claim 2, it is characterised in that:
The standing wave formula piezoelectric actuator includes piezoelectric drive element and energy amplitude transformer, and energy amplitude transformer includes coaxial disk
Section and cylindrical section, the head end face of disk segments connect piezoelectric drive element, and the terminal surface of cylindrical section is used to supply with the fluid single
Member is in close contact.
5. fine liquid drop spray driving device according to claim 4, it is characterised in that:
With the rounded portion transition of indent between the cylindrical section and the disk segments.
6. fine liquid drop spray driving device according to any one of claims 1 to 5, it is characterised in that: further include:
Light source is guided, for the guidance positioning to injection target.
7. fine liquid drop spray driving device according to any one of claims 1 to 5, it is characterised in that further include:
The guard mechanism being set on the shell, for opening or closing the fluid injection portion of fluid supply unit.
8. fine liquid drop spray driving device according to claim 7, it is characterised in that:
The guard mechanism is the outer cover for including elastic construction, it is realized using the elasticity of elastic construction and is opened fluid ejection section
It opens or closes.
9. a kind of fluid supply unit, characterized by comprising:
Fluid injection portion and energy conduction piece,
Wherein, the fluid injection portion and the energy conduction piece constitute at least partly chamber wall of the container of jet body to be painted；
And
The energy conduction piece is used to be in close contact with the terminal surface of piezoelectric actuator and generates vibration by driving, to make fluid
It is sprayed via fluid injection portion and forms orientation microlayer model stream.
10. fluid supply unit according to claim 9, it is characterised in that further include:
Interface, for being connected to fluid storage units.
11. fluid supply unit according to claim 10, it is characterised in that:
The interface includes connection forcing piece, and the container for guiding fluid storage units and the jet body to be painted forms closed
Connection.
12. fluid supply unit according to claim 11, it is characterised in that:
The interface further includes puncture portion, for puncturing fluid storage units to realize connection.
13. the fluid supply unit according to any one of claim 9~12, it is characterised in that:
The fluid injection portion and the energy conduction piece are oppositely arranged on the container of the jet body to be painted.
14. the fluid supply unit according to any one of claim 9~12, it is characterised in that:
The fluid injection portion is micro-spraying hole piece, and micro-spraying hole on piece has at least one spray orifice.
15. fluid supply unit according to claim 14, it is characterised in that:
For the spray orifice in micro-spraying hole on piece using center to be distributed in the region of origin diameter 1mm to 10mm, the diameter of spray orifice is 5 micro-
Rice is to 200 microns.
16. fluid supply unit according to claim 14, it is characterised in that:
The fluid inlet end diameter of the spray orifice is greater than fluid outlet diameter.
17. fluid supply unit according to claim 16, it is characterised in that:
The spray orifice is bellmouth, and side wall is formed by bending arcwall to hole central side.
18. fluid supply unit according to claim 14, it is characterised in that:
The sidewall surfaces of the spray orifice have hydrophobic layer or hydrophilic layer.
19. fluid supply unit according to claim 18, it is characterised in that:
The hydrophobic layer or hydrophilic layer are by carrying out material modification acquisition to spray orifice sidewall surfaces.
20. the fluid supply unit according to any one of claim 9~12, it is characterised in that:
It further include U-shaped card slot, the U-shaped card slot is set to the container inner wall surface of the jet body to be painted, and sprays in fluid
The periphery for penetrating portion retains space for provide micro fluid.
21. the fluid supply unit according to any one of claim 9~12, it is characterised in that:
The energy conduction piece is made of the sheet metal of 0.01mm to 0.2mm thickness.
22. the fluid supply unit according to any one of claim 9~12, it is characterised in that:
The energy conduction piece is made of the non-metallic film of 0.01mm to 0.1mm thickness.
23. a kind of fine liquid drop spray generating device, it is characterised in that including microlayer model according to any one of claims 1 to 8
Fluid supply unit described in any one of jeting driving device and claim 9~22.
24. fine liquid drop spray generating device according to claim 23, it is characterised in that:
The fluid supply unit and shell are detachably connected.
25. the fine liquid drop spray generating device according to claim 23 or 24, it is characterised in that: further include sensor and control
Device processed, wherein
The fine liquid drop spray driving device includes the guard mechanism being set on the shell, is supplied for opening or closing fluid
Answer the fluid injection portion of unit；
The sensor will test signal and pass to controller for detecting whether the guard mechanism is opened, and controller exists
In the state that guard mechanism is opened, control piezoelectric actuator, which is powered, generates vibration, and then driving energy conductive sheet is vibrated.
26. the fine liquid drop spray generating device according to claim 23 or 24, it is characterised in that:
The fluid injection portion of the fluid supply unit is micro-spraying hole piece, and micro-spraying hole on piece has at least one spray orifice；
The micro-spraying hole piece, energy conduction piece and piezoelectric actuator coaxial arrangement, at a distance of 0 between micro-spraying hole piece and energy conduction piece
~3mm.
27. fine liquid drop spray generating device according to claim 26, it is characterised in that:
At a distance of 0.2~0.8mm between micro-spraying hole piece and energy conduction piece.
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|---|---|---|---|
| CN201721355387.8U CN208641022U (en) | 2017-10-19 | 2017-10-19 | Fluid supply unit and fine liquid drop spray driving device, generating device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721355387.8U CN208641022U (en) | 2017-10-19 | 2017-10-19 | Fluid supply unit and fine liquid drop spray driving device, generating device |
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| CN208641022U true CN208641022U (en) | 2019-03-26 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109674576A (en) * | 2017-10-19 | 2019-04-26 | 深圳市启明医药科技有限公司 | Fluid supply unit and fine liquid drop spray driving device, generating device |
| CN110160834A (en) * | 2019-05-24 | 2019-08-23 | 深圳市前海微升科学股份有限公司 | A kind of method and device of micro quantitative determination sampling |
| CN112915012A (en) * | 2020-09-10 | 2021-06-08 | 美蓝(杭州)医药科技有限公司 | Dispensing syringe and method of use thereof |
| CN114749222A (en) * | 2022-03-30 | 2022-07-15 | 北京航空航天大学 | Integrated piezoelectric multi-column uniform liquid drop generator |
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2017
- 2017-10-19 CN CN201721355387.8U patent/CN208641022U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109674576A (en) * | 2017-10-19 | 2019-04-26 | 深圳市启明医药科技有限公司 | Fluid supply unit and fine liquid drop spray driving device, generating device |
| CN109674576B (en) * | 2017-10-19 | 2024-02-27 | 深圳市启明医药科技有限公司 | Fluid supply unit, micro-droplet ejection driving device, and generation device |
| CN110160834A (en) * | 2019-05-24 | 2019-08-23 | 深圳市前海微升科学股份有限公司 | A kind of method and device of micro quantitative determination sampling |
| CN112915012A (en) * | 2020-09-10 | 2021-06-08 | 美蓝(杭州)医药科技有限公司 | Dispensing syringe and method of use thereof |
| CN114749222A (en) * | 2022-03-30 | 2022-07-15 | 北京航空航天大学 | Integrated piezoelectric multi-column uniform liquid drop generator |
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