JP2008104966A - Atomizing apparatus and suction device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a simply structured atomizing apparatus capable of efficiency atomizing a liquid. <P>SOLUTION: The atomizing apparatus 10 is provided with an atomizer 40 and a liquid leading passage 81 communicating a reservoir 20 and the space 80 with each other to supply the liquid to the propagation zone of the surface acoustic wave by a capillary phenomenon and formed on the liquid supply plate 70. The atomizer 40 comprises a reservoir 20 for housing the liquid, a surface acoustic wave device 50 obtained by forming an interdigital transducer (IDT) electrode 52 on the main surface of a piezoelectric substrate 51, a high frequency generation circuit part connected to IDT electrode 52 and for generating surface acoustic wave and a liquid supply plate 70 fixed to the surface acoustic wave device 50 to form a space 80 with the surface acoustic wave device 50 in the thickness direction of the propagation zone of the surface acoustic wave. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an atomization device and a suction device, and more particularly, to an atomization device that atomizes a liquid using a surface acoustic wave element, and a suction device including the atomization device.

  In recent years, a suction device has been proposed for sucking a chemical solution or flavor liquid into fine particles (referred to as atomization). For example, conventionally, administration of a drug solution or the like to a patient has been performed by subcutaneous injection or the like, but as an alternative, a method of sucking through a trachea has been proposed. In addition, a pseudo smoking tool that atomizes and sucks a flavor has been proposed in order to taste a flavor similar to tobacco without burning the tobacco.

  Such suction devices and simulated smoking devices are required to atomize a liquid, and various atomizers have been developed. As a representative of these atomizers, a surface acoustic wave element is known.

  A device using a surface acoustic wave element for an atomizer includes a vibrator comprising a piezoelectric substrate on which an IDT electrode is formed, a high-frequency power source connected to the IDT electrode and generating a surface acoustic wave, and a gap between the vibrator and the vibrator. There is known an atomizer using a surface acoustic wave provided with a cover disposed in a part of the vibrator and having a slit formed at a gap end, and means for supplying a liquid to the gap (for example, Patent Document 1).

  A surface acoustic wave element; and a porous thin plate having a large number of through-holes arranged at minute intervals on a vibration surface of the surface acoustic wave element, and the liquid in the liquid container is generated by the surface acoustic wave. Liquid that is sucked into the micro gap between the surface acoustic wave element and the porous thin plate by vibration or capillary action, and the surface acoustic wave is transmitted to the porous thin plate through the liquid in the micro gap and penetrates into the porous thin plate There are known an atomizing device that atomizes the liquid by vibration and a suction device including the atomizing device (see, for example, Patent Document 2).

  There is also known an atomization apparatus using a surface acoustic wave element that uses an ink jet unit as means for supplying a liquid to the surface of the surface acoustic wave element and further atomizes droplets supplied from the ink jet unit. (For example, refer to Patent Document 3).

Japanese Unexamined Patent Publication No. 7-232114 (2nd page, FIG. 1) WO97 / 05960 (8th to 10th pages, FIGS. 3 to 5) Japanese Patent Laid-Open No. 11-114467 (page 5, FIG. 1)

  In Patent Document 1, liquid is discharged from a slit having a narrow gap end formed by a surface acoustic wave element and a cover, and the liquid is discharged as a thin film and atomized by the gap. In the gap, the supply of the liquid is promoted with the vibration ON / OFF due to the surface tension of the liquid. However, since the liquid is filled in the gap, the area of the area that is actually atomized becomes small, and thus there is a problem that the atomization efficiency decreases.

  According to Patent Document 2, vibration transmission to the porous thin plate is transmitted via a liquid between the surface acoustic wave element and vibration transmission efficiency decreases. Furthermore, since both the surface acoustic wave element and the thin porous plate are mounted in the groove of the holder, it is predicted that vibration will leak to the holder, and the transmission efficiency of vibration will be reduced. Therefore, it has the subject that the atomization efficiency of a liquid also falls.

  Furthermore, since the atomized liquid particle diameter depends on the mesh diameter of the porous thin plate, it is considered that it is difficult to make fine particles with a required liquid particle diameter of about 1 μm.

  In addition, the inhaler (suction device) according to Patent Document 2 is in a state in which the container for storing the liquid is opened, so that the liquid flows out by tilting, so that the posture during use is limited, and the storage method is limited. Or unsuitable for portable suction devices.

  Further, the atomizing device according to Patent Document 3 has a complicated structure due to the structure using an ink jet unit that supplies droplets to the surface of the elastic surface element, and is not suitable for miniaturization.

  Furthermore, a drive control circuit for driving the ink jet unit is required, and there is a problem that the circuit scale increases together with the high-frequency power source of the surface acoustic wave element, and the current consumption increases.

  An object of the present invention is to solve the above-described problems, and an atomizing device having a simple structure capable of efficiently atomizing (finely pulverizing) a liquid and a suction device easy to handle by a user, particularly small and portable. A suction device is provided.

  An atomization apparatus according to the present invention includes a reservoir for storing a liquid, a surface acoustic wave element in which an IDT electrode is formed on a main surface of a piezoelectric substrate, and a high-frequency oscillation circuit unit that generates surface acoustic waves in the surface acoustic wave element. An atomizer comprising: the surface acoustic wave element; and a liquid supply plate fixed to the surface acoustic wave element having a space in the thickness direction of the propagation region of the surface acoustic wave, the reservoir, and the space And a liquid supply means for supplying the liquid to the surface acoustic wave propagation region by capillary action.

  According to the present invention, since the liquid supplied to the surface acoustic wave propagation region is directly atomized by the excited surface acoustic wave radiation wave, the liquid can be atomized with high efficiency. Can be differentiated into fine particles of about 1 μm.

  Further, since the capillary phenomenon between the liquid and the liquid supply means is used as the means for supplying the liquid to the surface acoustic wave element, the mist using the ink jet unit as the liquid supply means as described in Patent Document 3 described above. The structure can be simplified and the size can be easily reduced as compared with the apparatus.

  Further, a drive control circuit for driving the ink jet unit is unnecessary, and the scale of the circuit is small, so that the current consumption can be reduced accordingly.

  Further, it is preferable that the space is formed by a ring-shaped spacer disposed between the liquid supply plate and the piezoelectric substrate, and is formed in a range including the propagation area of the surface acoustic wave. .

  This space means a region that atomizes when liquid is supplied. Here, by providing a ring-shaped spacer, it becomes a bank of liquid to be supplied to the surface acoustic wave propagation region, and prevents the supplied liquid from flowing out of the atomizing device in a liquid state. Can be atomized.

  Further, if the spacer is formed of a thin plate such as metal or ceramic, the volume of the space can be managed with high accuracy.

Further, it is preferable that the liquid supply means is a liquid conduction path formed on the liquid supply plate and having a minute gap communicating the reservoir and the space.
Here, the minute gap is, for example, a slit or a thin tubular gap that can suck liquid by capillary action.

  By doing so, the ink jet unit as the liquid supply means as described in Patent Document 3 is not necessary, and the liquid conduction path is formed in the liquid supply plate, so that the liquid described in Patent Document 1 described above is used. A tube or the like for supply is not required, the structure is simplified, and the atomization device can be downsized.

It is preferable that a plurality of end portions communicating with the space of the liquid conduction path are provided.
If it does in this way, the supply amount to the propagation area of the surface acoustic wave of a liquid will increase and the amount of atomization will increase by increasing the number of the liquid outlets (indicating the edge part connected to space) of a liquid passage. be able to. Since the liquid is sucked into the liquid conduction path by capillary action, the number of liquid outlets can be increased and the liquid supply amount can be increased without adding a special member.

  It is preferable that the liquid supply plate is formed of a lyophilic material, or at least a lyophilic film is formed on a surface that contacts the liquid.

  If it does in this way, the wettability with respect to the liquid supply plate of a liquid can be improved, and the fluidity | liquidity of a liquid can be improved. In particular, the effect is large in the liquid conduction path.

  Further, it is preferable that an insulating lyophilic film is formed in the surface acoustic wave propagation region of the surface acoustic wave element.

By forming a lyophilic film on the surface of the surface acoustic wave propagation region, it is possible to improve the wettability of the liquid to the piezoelectric substrate. Atomization efficiency can be improved.
In addition, since the lyophilic film has an insulating property, a short circuit between the IDT electrodes can be prevented.
Note that an insulating protective film may be formed and a lyophilic film may be formed on the surface thereof.

  It is desirable that a lyophilic film formed on the surface of the surface acoustic wave propagation region and a liquid repellent film formed on the outer periphery of the surface acoustic wave propagation region are provided.

  There is a slight gap between the IDT electrode and the spacer. Therefore, even if the majority of the area where the IDT electrode is formed is lyophilic, it is predicted that the liquid will flow between the spacer and the IDT electrode if the amount of supplied liquid is large. It is conceivable that the residual amount of liquid gradually increases by continuing the operation. Here, by providing a liquid repellent film, the liquid flowing outside the IDT electrode formation range is liquid repelled, and when it moves to a range having lyophilicity by a slight surface wave, it is thinned and instantly atomized. Therefore, it is possible to suppress the liquid from remaining on the piezoelectric substrate, and to reduce the influence on the vibration characteristics due to the remaining liquid remaining.

  Further, a septum provided in the liquid outflow portion of the reservoir and a liquid intake port protruding from the liquid supply plate are provided, and by inserting the liquid intake port into the septum, the reservoir and the It is desirable to communicate with the space.

  By providing the septum in the reservoir, it is possible to easily join the reservoir and the atomizer with a simple structure and to prevent leakage of liquid from the joined portion. Further, the reservoir can be easily separated and replaced.

  Further, since the liquid intake port provided in the liquid supply plate is directly inserted into the reservoir, the liquid conduction path can be shortened. Therefore, in addition to providing the lyophilic film described above, Fluid resistance to liquid flow can be reduced.

The liquid supply means includes a first liquid-absorbing porous member having one end in contact with the liquid stored in the reservoir and the other end in contact with the surface of the surface acoustic wave propagation region. It is preferable that the supply plate is inserted or stuck.
Here, as a liquid absorption porous member, there exists a porous material which uses felt, a pulp, and resin as a raw material, for example.

  As described above, by using the liquid-absorbing porous member as the liquid supply means, the liquid is absorbed by the capillary phenomenon, and the same effect as in the case where the above-described liquid conduction path is provided can be obtained.

  In addition, by adjusting the cross-sectional area of the liquid-absorbing porous member, it is possible to easily adjust the liquid supply amount, and there is an effect that it is easier than managing the minute gaps in the liquid conduction path.

  Further, it is preferable that a second liquid-absorbing porous member having elasticity is further provided between the other end of the first liquid-absorbing porous member and the surface of the surface acoustic wave propagation region. .

  The second liquid-absorbing porous member in contact with the surface of the surface acoustic wave propagation region is made of an elastic material, so that each dimensional variation is absorbed, and the liquid-absorbing porous member as a liquid supply means Can be reliably contacted with the surface of the surface acoustic wave propagation region.

  Further, since the second liquid-absorbing porous member is a material having elasticity, the influence on the vibration of the surface acoustic wave element can be suppressed.

  Moreover, it is desirable that a film with low liquid permeability is formed on the surface excluding one end and the other end of the first liquid-absorbing porous member.

  Thus, by forming a film with low liquid permeability in a range other than the inlet portion and the outlet portion when supplying the liquid, the liquid is prevented from evaporating from the first liquid-absorbing porous member, The required amount of liquid can be supplied to the surface acoustic wave propagation region.

  The reservoir and the atomizer are detachable, and the reservoir has a third liquid-absorbing porous member that communicates with the inside and outside of the reservoir, and the atomizer includes the atomizer. A fourth liquid-absorbing porous member communicating with the outside of the vessel and the space, and when the reservoir and the atomizer are mounted, the third liquid-absorbing porous member and the fourth It is preferable that the end surfaces of the liquid-absorbing porous members are in contact with each other.

  By making the reservoir and the atomizer detachable, the atomizer can be used repeatedly, and the reservoir can be exchanged. Further, when the reservoir and the atomizer are mounted, the liquid supply from the reservoir to the atomizer is made by bringing the end surfaces of the third liquid-absorbing porous member and the fourth liquid-absorbing porous member into contact with each other. Can be performed without any special operation.

  Further, at least one of the contact surfaces of the third liquid-absorbing porous member and the fourth liquid-absorbing porous member is provided with an elastic liquid-absorbing porous member. preferable.

  Thus, since the liquid-absorbing porous member having elasticity is provided between the third liquid-absorbing porous member and the fourth liquid-absorbing porous member, the reservoir is attached to the atomizer. Sometimes, there is an effect that a dimensional variation between the reservoir and the atomizer is absorbed, the contact between the reservoir and the atomizer is ensured, and a liquid flow path can be secured.

  The reservoir preferably includes a cap that surrounds the third liquid-absorbing porous member or the liquid-absorbing porous member having elasticity.

  Providing the cap in this way protects the third liquid-absorbing porous member or the elastic liquid-absorbing porous member, and prevents the liquid from flowing out of the reservoir when the reservoir is a single body. Can do.

  Further, a case having higher rigidity than the reservoir for storing the reservoir is further provided, and the third liquid-absorbing porous member or the elastic liquid-absorbing porous member protrudes outside the case. It is desirable.

  As described above, the atomizing device of the present invention enables replacement use of the reservoir. Therefore, it is conceivable that the reservoir is sold alone or the user performs an operation for mounting on the atomizer. At this time, by storing the reservoir in the case, deformation of the reservoir can be prevented.

  Moreover, it is desirable that a septum for injecting liquid from the outside is provided in the reservoir.

  In this way, by providing a septum, it is possible to easily inject liquid using an injection tool such as an injection needle at the time of manufacture, and the user himself / herself can supply liquid from a large liquid container to the reservoir. Additional injections can also be made, improving convenience and economy.

  Moreover, it is desirable that an opening for injecting liquid into the reservoir is opened in the vicinity of the septum.

By doing so, the liquid can be injected in a state where the reservoir is stored in the case.
If the reservoir is made of a flexible material, it is possible that when the liquid is supplied to the atomizer, the inside of the reservoir becomes negative with respect to the atmospheric pressure, preventing the supply of the liquid. The opening also serves as a ventilation hole inside and outside the case, and the pressure inside the case is always the same as the external atmospheric pressure, so that supply of liquid by negative pressure is not hindered.

  In addition, it is preferable that a cap is further provided to surround the third liquid-absorbing porous member or the elastic liquid-absorbing porous member in a state where the reservoir is separated from the atomizer.

  By providing such a cap, it is possible to protect the third liquid-absorbing porous member or the liquid-absorbing porous member having elasticity, and to prevent the outflow of liquid when the reservoir is a single body. By providing the case and the cap having high rigidity, there is an effect that the handling of the reservoir becomes easy.

  The suction device according to the present invention includes a reservoir for storing a liquid, a surface acoustic wave element in which an IDT electrode is formed on a main surface of a piezoelectric substrate, and a high-frequency oscillation circuit unit that generates surface acoustic waves in the surface acoustic wave element. An atomizer comprising: the surface acoustic wave element; and a liquid supply plate that has a space in the thickness direction of the propagation region of the surface acoustic wave and is fixed to the surface acoustic wave element; the reservoir; An atomizer comprising: a liquid supply means that communicates with a space and supplies the liquid to the surface acoustic wave propagation region by capillary action; and the reservoir and the space communicate with each other, and the elastic surface by capillary action A liquid supply means for supplying the liquid to a wave propagation region, a control unit including at least the high-frequency oscillation circuit unit, a power supply for supplying power to the control unit, and the atomization device Atomized in And Kuwae opening having a flow path body particles flows, characterized in that is provided.

  According to the present invention, it is possible to reduce the size of the suction device with a simple structure that supplies the liquid stored in the reservoir onto the surface acoustic wave element by using the capillary phenomenon.

  Moreover, if the functional parts described above are unitized and each unit is connected in series, a thin pipe shape can be obtained, and a portable suction device can be provided.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 3 show an atomizing device according to Embodiment 1, FIGS. 4 and 5 show Embodiment 2, FIGS. 6 and 7 show Embodiment 3, FIG. 8 shows an atomizing device according to Embodiment 4, and FIG. 1 shows a suction device of the present invention.
Note that the drawings referred to in the following description are schematic views in which the vertical and horizontal scales of members or portions are different from actual ones for convenience of illustration.
(Embodiment 1)

  FIG. 1 is a plan view of an atomization apparatus according to Embodiment 1 of the present invention, and FIG. 2 is a cross-sectional view showing the AA cut surface of FIG. 1 and 2, the atomizing device 10 is configured by connecting a reservoir 20 that stores a liquid and an atomizer 40 that atomizes (sprays) the liquid supplied from the reservoir 20 and discharges it. Yes.

  The reservoir 20 includes a thin liquid case 21, a septum 30 attached to the end of the liquid case 21 and connected to the atomizer 40, and a septum for injecting liquid into the liquid case 21 at a position substantially opposite to the septum 30. 130.

  Here, the liquid stored in the reservoir 20 is not particularly limited to a liquid such as a chemical liquid or a flavor liquid such as a flavor, but a liquid having a viscosity capable of sucking the liquid conduction path 81 described later by a capillary phenomenon can be used. is there.

  The septum 30 is attached to the opening 22 of the liquid case 21 with the insertion portion 31 facing the atomizer 40 side. The opening 22 increases the mounting strength of the septum 30 by making it thicker than other portions of the liquid case 21.

When the reservoir 20 is not attached to the atomizer 40, the septum 30 and the septum 130 are closed, and no liquid leaks.
When liquid is injected into the reservoir 20, the liquid can be injected by inserting a needle (not shown) such as an injection needle into the septum 130.

  Although liquid can be similarly injected from the insertion portion 31 of the septum 30 without providing the septum 130, in this embodiment, the septum 30 has an intake port 75 protruding from the liquid supply plate 70. Since it is inserted, since the shape of the insertion part is different, it is provided separately.

The atomizer 40 includes a surface acoustic wave element 50 and a liquid supply plate 70 disposed on the upper surface of the surface acoustic wave element 50. In the surface acoustic wave element 50, an IDT electrode (Interdigital Transducer) 52 including an excitation electrode 53 and a reflector 54 is formed on one main surface (hereinafter simply referred to as a surface) of a piezoelectric substrate 51. The piezoelectric substrate 51 is not particularly limited as long as it is a piezoelectric material, but is a piezoelectric single crystal such as LiNbO ₃ , LiTO ₃ , quartz, PZT (registered trademark), piezoelectric ceramic, or PZT (registered trademark) on a glass substrate. Etc. can be used.

  A spacer 60 is in close contact with the surface of the piezoelectric substrate 51. The spacer 60 is a ring-shaped thin plate made of a metal such as stainless steel, and is disposed so as to surround a surface acoustic wave propagation region including the excitation electrode 53 and the reflector 54. Therefore, there is no influence on the excitation and propagation of the surface acoustic wave by providing the spacer 60. A liquid supply plate 70 is in close contact with the surface of the spacer 60.

  The liquid supply plate 70 includes an intake port 75 protruding in a peninsular shape toward the reservoir 20 side, a slit-like liquid conduction path 81 penetrating from the intake port 75, and a discharge port 71 for discharging atomized liquid particulates. Two ventilation holes 73 are provided.

  The liquid supply plate 70 is closely fixed to the upper surface of the spacer 60. At this time, a space 80 is formed above the IDT electrode 52 in the thickness direction. In a state where the intake port 75 is inserted into the septum 30 of the reservoir 20, one end of the liquid conduction path 81 is in contact with the liquid in the reservoir 20, and the other end communicates with the space 80 described above continuously to the dropping port 72. ing.

  The liquid conduction path 81 is formed with a minute gap having a size that allows the liquid to be filled by capillary action from the reservoir 20 to the dropping port 72. Therefore, as a method of forming this gap, the liquid supply plate 70 is divided by the liquid conduction path 81 in the thickness direction into the liquid supply plate main body 70a and the liquid conduction path plate 70b, and one of them corresponds to the liquid conduction path 81. It can be easily formed by a method of joining after forming the groove to be formed.

  A vent hole 73 is formed in the liquid supply plate 70. The vent hole 73 communicates with the space 80 of the atomizer 40 and the outside, and is atomized by equalizing the internal and external pressures. The flow of liquid fine particles to the discharge port 71 is promoted.

  A lyophilic film (not shown) is formed on the surface of the liquid supply plate 70 that contacts the liquid. That is, the lyophilic film is formed over the liquid conduction path 81, the dripping port 72, and the inner surface of the space 80. The material of the liquid supply plate 70 is not particularly limited, but the lyophilic film may not be formed if it is a lyophilic material.

Next, the configuration of the surface acoustic wave element 50 of this embodiment will be described.
FIG. 3 is a plan view showing the surface acoustic wave device according to this embodiment. In FIG. 3, the surface acoustic wave element 50 is configured by forming an IDT electrode 52 on the surface of a piezoelectric substrate 51. The IDT electrode 52 includes an excitation electrode 53 in which a pair of interdigital electrodes are interleaved in a comb shape, and a reflector 54 including a grid-like electrode disposed in the propagation direction of the surface acoustic wave. One of the interdigitated electrodes is an IN electrode and the other is a ground electrode. A spacer 60 is fixed around the IDT electrode 52 that is spaced apart in the planar direction.

A lyophilic film 55 is formed on the surface of the piezoelectric substrate 51 in the area where the IDT electrode 52 is formed, that is, in the area where the surface acoustic wave propagates. The lyophilic film 55 has an insulating property, and prevents a short circuit between the IDT electrodes 52 when the supplied liquid has conductivity. Furthermore, the lyophilic film 55 functions as a protective film for the IDT electrode 52 and prevents the IDT electrode 52 from being corroded by the liquid.
Note that the insulating film may be formed first, and then the lyophilic film 55 may be formed on the surface thereof.
A liquid repellent film 56 is formed between the outer periphery of the lyophilic film 55 and the spacer 60.

  Then, the atomization effect | action of the atomization apparatus 10 by this embodiment is demonstrated with reference to FIGS. With the reservoir 20 and the atomizer 40 attached, the liquid in the reservoir 20 reaches the dropping port 72 via the liquid conduction path 81 by a capillary phenomenon, and drops on the surface of the surface acoustic wave element 50. A lyophilic film 55 is formed on the inner surfaces of the liquid conducting path 81 and the dropping port 72 to reduce the resistance of the liquid path.

  In such a state, when an excitation signal is input to the excitation electrode 53, a surface acoustic wave is excited and vibrates at a predetermined resonance frequency. The liquid dropped on the surface is atomized by the radiated wave of the surface acoustic wave, and the atomized liquid fine particles are discharged from the discharge port 71. Since the lyophilic film 55 is formed on the surface of the surface acoustic wave element 50, the dropped liquid is a thin film in the surface acoustic wave propagation region (the range of the lyophilic film 55). Therefore, the efficiency of the atomization action by the surface acoustic wave is increased.

  Since the liquid repellent film 56 is provided on the outer periphery of the surface acoustic wave propagation region, the liquid flowing or scattered from the surface acoustic wave propagation region is repelled to the region where the lyophilic film 55 is formed. Return by surface acoustic wave to promote atomization.

  The IDT electrode 52 has a reflector 54 to increase the vibration intensity of the surface acoustic wave. The reflector 54 is not necessarily required.

  In FIG. 1, the case where there is one liquid conduction path 81 is described as an example. In this case, even in a structure in which a plurality of liquid conduction paths are communicated with the reservoir 20, the number of liquid conduction paths communicating with the reservoir 20 is one, and a plurality of liquid conduction paths are branched from the middle so that a plurality of liquid conduction paths are provided in the space 80. It is good also as a structure which makes a dripping port communicate. In this case, it is more preferable to arrange the liquid dropping position on the surface acoustic wave element in a well-balanced manner.

  Therefore, according to the first embodiment described above, since the liquid is directly atomized by the radiated wave of the excited surface acoustic wave, the liquid is more liquid than the atomizing device that indirectly atomizes as described in Patent Document 2 described above. Can be atomized with high efficiency. If the resonance frequency of the surface acoustic wave is set to several tens of MHz, a fine particle diameter of about 1 μm can be obtained.

In addition, since the capillary phenomenon of the liquid conduction path 81 is used as means for supplying the liquid to the surface acoustic wave element 50, as in the above-mentioned Patent Document 3, the atomization apparatus using an ink jet unit as the liquid supply means. In comparison, the structure can be simplified and the size can be easily reduced.
In addition, a drive control circuit for driving the ink jet unit is unnecessary, the circuit scale is small, and current consumption can be reduced.

  Further, by providing a ring-shaped spacer 60 between the piezoelectric substrate 51 and the liquid supply plate 70, the spacer 60 becomes a bank of liquid supplied to the surface acoustic wave propagation region, and the surface acoustic wave element in the liquid state 50 can be prevented from flowing out, and the supplied liquid can be efficiently atomized.

  Further, if the spacer 60 is formed of a thin plate such as metal or ceramic, the gap in the space 80 can be managed with high accuracy.

  In addition, since the liquid conduction path 81 is formed in the liquid supply plate 70, the tube for liquid supply described in Patent Document 1 described above is unnecessary, and the structure of the wooden atomizer 10 is simple. realizable.

  The reservoir 20 includes a septum 30 provided in the opening 22 and a septum 130 provided at a position substantially opposite to the septum 30. The septum 30 communicates with the reservoir 20 and the space 80 of the atomizer 40 by inserting a liquid intake port 75 projecting from the liquid supply plate 70. Therefore, the reservoir 20 and the atomizer 40 can be joined with a simple structure, and liquid leakage from the joined portion can be prevented. In addition, the reservoir 20 can be easily separated. Furthermore, the liquid conduction path can be shortened.

  In addition, by inserting a needle such as an injection needle into the septum 130, the reservoir 20 can be filled with liquid or the user can inject additional liquid during manufacture.

  Further, the liquid supply plate 70 is formed of a lyophilic material, or at least the lyophilic film 55 is formed on the surface in contact with the liquid, thereby improving the wettability with respect to the liquid supply plate 70 and the liquid. The fluidity of can be improved. In particular, the liquid conduction path 81 has a great effect.

Furthermore, the wettability of the liquid to the piezoelectric substrate 51 is improved by forming an insulating lyophilic film 55 on the surface of the surface acoustic wave propagation region of the surface acoustic wave element 50 (piezoelectric substrate 51). Therefore, the liquid supplied onto the piezoelectric substrate 51 becomes a thin film, and the atomization efficiency by the surface acoustic wave can be improved.
Further, since the lyophilic film 55 has an insulating property, it is possible to prevent the IDT electrode 52 from being short-circuited and to prevent the IDT electrode 52 from being corroded.

  Further, by providing the lyophobic film 56 around the outer periphery of the lyophilic film 55, the liquid flowing outside the formation range of the IDT electrode 52 is lyophobic and moves by a slight surface acoustic wave, thereby improving the lyophilic property. When moving to the range, the film is thinned and instantly atomized, so that the liquid can be prevented from remaining on the piezoelectric substrate 51, and the influence on the vibration characteristics can be reduced.

Furthermore, by providing a plurality of liquid dripping ports 72 communicating with the space 80 of the liquid conduction path 81, the amount of liquid supplied can be increased and the amount of atomization can be increased. Since the liquid is sucked into the liquid conduction path 81 by capillary action, the liquid supply amount can be increased by increasing the number of liquid dropping ports without adding a special member.
(Embodiment 2)

Then, the atomization apparatus which concerns on Embodiment 2 of this invention is demonstrated with reference to drawings. Embodiment 2 is characterized in that a liquid-absorbing porous member is used as the liquid supply means. Therefore, the description will focus on the differences from the first embodiment described above, and common portions will be described with the same reference numerals. The surface acoustic wave element 50 has the same configuration as that of the first embodiment.
FIG. 4 is a plan view showing the atomization device according to the second embodiment, and FIG. 5 is a cross-sectional view showing a BB cut surface of FIG. 4 and 5, in the atomization apparatus 10 of the present embodiment, the reservoir 20 and the space 80 of the atomizer 40 are a first liquid-absorbing porous member 82 (hereinafter simply referred to as a porous member 82). It is communicated by.

  The porous member 82 is a member with excellent liquid absorbency that is formed into a rod shape using felt, pulp, resin, or the like as a raw material. The porous member 82 may be inserted on either the atomizer 40 side or the reservoir 20 side. In the atomizer 40 side, the porous member 82 is inserted into an insertion hole 78 provided in the liquid supply plate 70. On the reservoir 20 side, it is inserted and held in a holding member 32 disposed in the liquid case 21. The porous member 82 may have a structure that is adhered to the plate surface of the liquid supply plate 70.

  The holding member 32 and the porous member 82 are in a fitting relationship within a range in which the liquid does not leak and the liquid can be absorbed. A liquid adsorbing member 90 that is more flexible than the porous member 82 is accommodated on the holding member 32 side in the liquid case 21.

  One end of the porous member 82 is inserted into the liquid adsorbing member 90, absorbs the liquid through the liquid adsorbing member 90, and draws the liquid in the direction of the other end on the atomizer 40 side. Move by phenomenon.

  A second liquid-absorbing porous member 83 having elasticity for connecting the porous member 82 and the piezoelectric substrate 51 (hereinafter simply referred to as porous) is provided at the tip of the other end of the porous member 82 on the atomizer 40 side. (Referred to as a material member 83). The porous member 83 is in contact with the porous member 82 and the piezoelectric substrate 51 with an initial deflection amount, but has elasticity and has a pressing force that does not affect excitation and propagation of the surface acoustic wave. To be adjusted.

  The liquid adsorbing member 90 is provided so that the porous member 82 is always in contact with the liquid regardless of the posture of the reservoir 20 and the remaining amount of the liquid. However, if the porous member 82 is in contact with the liquid, the liquid adsorbing member 90 is not necessarily provided. It does not have to be.

  A film with low liquid permeability is formed on the surface of the porous member 82 (not shown). This membrane is provided in a contact area with the insertion hole 78 provided in the liquid supply plate 70 of the porous member 82, and a portion that contacts the liquid (portion that absorbs the liquid) in the reservoir 20, the porous member 83, The leakage of the liquid other than the contacted part (part supplying the liquid) is suppressed.

In the liquid supply plate 70, a discharge groove 74 that communicates with the space 80 is formed up to the atomized liquid fine particle discharge port 76 that crosses the upper portion of the spacer 60 and opens to the outside of the side surface.
The discharge groove 74 may have a structure in which a discharge port 71 opened on the upper surface of the liquid supply plate 70 is provided, as in the first embodiment (see FIG. 2).

  The atomization effect according to the second embodiment is the same as that of the first embodiment, but the liquid in the reservoir 20 moves from the porous members 82 and 83 to the surface acoustic wave propagation region of the piezoelectric substrate 51 by capillary action, and is porous. The liquid supplied to the contact surface between the material member 83 and the piezoelectric substrate 51 is atomized by the surface acoustic wave radiation and discharged from the discharge port 76.

  Since the surface acoustic wave propagation region of the piezoelectric substrate 51 is provided with the lyophilic film 55 (see FIG. 3), the liquid present on the surface of the porous member 83 is separated by the lyophilic film 55. It develops into a thin film and is atomized by surface acoustic waves. As the liquid on the surface of the porous member 83 is atomized, the liquid supply from the reservoir 20 continues to the porous member 83.

  Therefore, according to the second embodiment described above, by providing the porous member 82 as the liquid supply member, it is possible to supply the liquid by a capillary phenomenon as in the structure in which the liquid conduction path 81 according to the first embodiment described above is provided. . In the first embodiment and the second embodiment, the liquid is supplied using the capillary phenomenon. However, if the porous member 82 is used, the dimensional control can be performed with higher accuracy than the structure using the liquid conduction path 81. Without it, the desired liquid supply function can be achieved.

  In addition, since a porous member 83 having elasticity is further provided between the porous member 82 and the surface of the surface acoustic wave propagation region, the dimensional variation of each related member is absorbed, and the porous member 83 is absorbed. And the piezoelectric substrate 51 can be reliably contacted.

  Further, since the porous member 83 is a material having elasticity, the influence on the vibration of the surface acoustic wave element 50 can be suppressed.

Further, a range other than the inlet portion and the outlet portion when the liquid is supplied to the porous member 82 (that is, the porous member 82 in contact with the liquid in the reservoir 20 and the contact range between the porous member 82 and the insertion hole 78). ) Can be prevented from evaporating from the porous member 82, and the required amount of liquid can be supplied to the atomizer 40.
(Embodiment 3)

Then, the atomization apparatus which concerns on Embodiment 3 of this invention is demonstrated with reference to drawings. Embodiment 3 is characterized in that the reservoir 20 and the atomizer 40 are detachable, and in particular, the reservoir 20 and the atomizer 40 are each provided with a liquid-absorbing porous member. is doing.
FIG. 6 is a cross-sectional view showing a part of the atomizing device according to the third embodiment. In FIG. 6, the atomizing device 10 is configured by fitting and coupling the fitting portion 33 of the reservoir 20 and the fitting portion 77 of the atomizer 40.

  The reservoir 20 includes a liquid case 21, a holding member 32 that is press-fitted into the opening 22 of the liquid case 21, and a third liquid-absorbing porous member 85 (hereinafter simply referred to as a porous member) that is inserted into the holding member 32. 85) and a liquid-absorbing porous member 87 (hereinafter simply referred to as a porous member 87) having elasticity inserted into the tip of the porous member 85.

  One of the porous members 87 is in close contact with the porous member 85, and the other protrudes outside the holding member 32. In a state where the reservoir 20 is inserted into the atomizer 40, the porous member 87 is in close contact with the liquid-absorbing porous member 88 (hereinafter simply referred to as the porous member 88) having elasticity on the atomizer 40 side. To do.

The atomizer 40 includes a liquid supply plate 70 disposed on the upper surface of the surface acoustic wave element 50 (common to the first embodiment), and a porous member that is inserted into an insertion hole 78 provided in the liquid supply plate 70. 86 and a porous member 88 that is in close contact with the porous member 86. A spacer 60 (see FIG. 5) is disposed between the piezoelectric substrate 51 and the liquid supply plate 70. Further, the structure of the space inside the atomizer 40, the discharge port of the atomized liquid fine particles, and the like are the same as those of the above-described second embodiment (see FIG. 5), and thus the description thereof is omitted.
A concave fitting portion 77 is formed at the end of the liquid supply plate 70 on the reservoir 20 side.

The fitting portion 33 on the reservoir 20 side and the fitting portion 77 on the atomizer 40 side have a convex portion protruding in one of them and a concave portion in the other, and the convex portion and the concave portion are fitted. By doing so, the reservoir 20 and the atomizer 40 are mounted, and the porous member 87 and the porous member 88 are in close contact with each other. In a mounted state, the liquid in the reservoir 20 and the space 80 in the atomizer 40 are communicated by the porous members 85 to 88, and the liquid is supplied to the surface of the surface acoustic wave element 50 by capillary action. .
Since the atomizing action is the same as that of the second embodiment described above, description thereof is omitted.

  The liquid adsorbing member 90 (see FIGS. 4 and 5) described in the second embodiment is accommodated in the liquid case 21, and the liquid adsorbing member 90 and the porous member 85 are brought into contact with each other. it can.

  Further, the mounting structure of the reservoir 20 and the atomizer 40 is not limited to the fitting connection, and may be a screw structure or a hook structure.

  6 illustrates the structure including the porous members 87 and 88 on the reservoir 20 side and the atomizer 40 side, respectively, the porous members 87 and 88 may be configured to include either one. . Specifically, in the case of the structure including the porous member 87, it can be realized by extending the porous member 86 on the atomizer 40 side to a position where it is in close contact with the porous member 87.

  In the case of the structure including the porous member 88, the porous member 85 on the reservoir 20 side may be extended until it is in close contact with the porous member 88.

  Alternatively, a structure in which the porous member 85 and the porous member 86 are directly adhered without using the porous members 87 and 88 is also included in the scope of the present invention.

In this embodiment, since the reservoir 20 and the atomizer 40 are detachable, the state of the reservoir 20 alone will be described.
FIG. 7 is a cross-sectional view illustrating the form of the reservoir according to the third embodiment. In FIG. 7, a cap 95 is attached to the fitting portion 33 of the holding member 32. The cap 95 has the same shape as the fitting portion 77 (see FIG. 6) provided on the liquid supply plate 70, and is fitted and coupled to the holding member 32.

  In addition, by providing a packing (not shown) between the cap 95 and the fitting portion 33 of the holding member 32, it is possible to prevent liquid from leaking from the porous member 87 to the outside.

  When the reservoir 20 and the atomizer 40 are screwed together, a male screw may be formed in the fitting portion 32 and a female screw may be formed inside the cap 95, which is more effective in preventing liquid leakage.

  Therefore, according to the third embodiment described above, since the reservoir 20 and the atomizer 40 are detachable, the atomizer 40 can be used repeatedly, and the reservoir 20 can be used interchangeably. . In addition, when the reservoir 20 and the atomizer 40 are mounted, the end surfaces of the porous member 87 and the porous member 88 can be brought into contact (intimate contact), and liquid supply from the reservoir 20 to the atomizer 40 can be specially performed. It can be done without any operation.

  Further, since the porous members 87 and 88 having elasticity are provided, when the reservoir 20 is attached to the atomizer 40, the dimensional variations of the reservoir 20 and the atomizer 40 are absorbed, and the reservoir 20 and the fog There is an effect that the adhesiveness with the chemical generator 40 can be improved and a liquid flow path can be secured.

Further, since the reservoir 20 includes the cap 95 surrounding the porous member 85 or the porous member 87, it is possible to protect the porous member 85 or the porous member 87 and prevent the liquid from flowing out.
(Embodiment 4)

Then, the atomization apparatus which concerns on Embodiment 4 of this invention is demonstrated with reference to drawings. The fourth embodiment is characterized in that the reservoir is stored in the case. In addition, since the atomizer of this embodiment can employ | adopt the atomizer 40 (refer FIG. 6) described in Embodiment 3 mentioned above, illustration and description are abbreviate | omitted.
FIG. 8 is a cross-sectional view illustrating a reservoir according to the fourth embodiment. In FIG. 8, the reservoir 120 includes a liquid case 121 that stores a liquid and a case that stores the liquid case 121 (hereinafter, referred to as a reservoir case 150).

  The liquid case 121 has a reservoir opening 122 on one side and a septum 130 on the side facing the reservoir opening 122. The septum 130 is provided for injecting liquid into the liquid case 121.

  The reservoir case 150 is a container formed with a material or thickness that is greater in rigidity than the liquid case 121, and includes a case main body 151 and a case lid 152, and the liquid case 121 is inserted into the case main body 151. After that, the case lid 152 is fixed to be integrated.

  The case lid 152 is provided with an opening 153 at a position where the septum 130 can be seen, so that liquid can be injected from the septum 130 into the liquid case 121.

  A holding member 132 is mounted on the reservoir opening 122 side, and a porous member 85 is provided through the holding member 132 and the reservoir opening 122 of the liquid case 121. One end of the porous member 85 is in contact with the liquid, the other end is extended into the holding member 132, and a porous member 87 having elasticity is provided at the tip.

  Further, a cap 95 is fitted to the front end portion 133 of the holding member to protect the porous members 85 and 87 and prevent leakage of the liquid to the outside. The coupling between the cap 95 and the holding member 132 may be a screw coupling other than the fitting.

  In the atomization apparatus of the present embodiment, the reservoir 120 and the atomizer 40 are coupled by attaching the reservoir 120 having the reservoir case 150 to the atomizer 40, and liquid is generated in the surface acoustic wave element 50 by capillary action. Supplied.

  Therefore, the atomization apparatus according to Embodiment 4 described above can attach and detach the reservoir 120 and the atomizer 40. Accordingly, it is conceivable that the reservoir 120 is sold alone, or that the user performs a mounting operation on the atomizer 40. At this time, by storing the liquid case 121 in the reservoir case 150, deformation of the liquid case 121 can be prevented, and the liquid case 121 can be formed of a thin flexible material.

  Further, by providing the septum 130 in the liquid case 121, it is possible to easily inject the liquid at the time of manufacture, and the user himself can additionally inject the liquid from the large liquid container into the reservoir 120. , Can improve convenience and economy.

In addition, since the opening 152 is provided in the reservoir case 150 at a position where the septum 130 is viewed, the liquid can be injected while the liquid case 121 is stored in the reservoir case 150.
If the liquid case 121 is formed of a flexible material, when the liquid is supplied to the atomizer 40, the liquid case 121 has a negative pressure with respect to the atmospheric pressure. It is possible. However, the opening 153 of the reservoir case 150 also serves as a vent for the inside and outside of the reservoir case 150. By always keeping the pressure inside the reservoir case 150 the same as the external atmospheric pressure, the liquid supply due to the negative pressure accompanying the liquid supply can be prevented. I do not disturb.

Furthermore, by providing the cap 95 to the reservoir 120, the porous member 85 or the elastic porous member 87 can be protected, and when the reservoir 120 is a single unit, the outflow of liquid can be prevented. The handling property of the reservoir alone is improved.
(Suction device)

Next, a suction device equipped with the atomizing device shown in the first to fourth embodiments will be described with reference to the drawings.
FIG. 9 is a sectional view showing a schematic structure of the suction device according to the present invention. In FIG. 9, the suction device 200 includes a battery 140 as a power source, an atomization device 10 including a reservoir 20 and an atomizer 40, a control unit 145, and a first case 250 having a tail opening 251. It is arranged in a straight line. In addition, although the atomization apparatus 10 has illustrated the structure shown in Embodiment 1, the atomization apparatus shown in Embodiment 2-Embodiment 4 is also employable.

  Here, the battery 140 is detachably inserted into the battery case 211 to constitute the battery unit 210, and the control unit 145 including a high-frequency oscillation circuit unit for inputting an excitation signal to the surface acoustic wave element 50 is the fourth. The control unit 220 is configured by being attached to the case 221.

  The reservoir 20 is detachably attached to the third case 223 to constitute the reservoir unit 230, and the atomizer 40 is attached to the second case 225 to constitute the atomizer unit 240 to form the first case 250. Is fitted.

  The battery unit 210 is coupled to the control unit 220 by the screwing unit 212, the control unit 220 is fitted and coupled by the reservoir unit 230 and the fitting unit 222, and the reservoir unit 230 is fitted to the atomizer unit 240. The part 224 is fitted and connected.

  Further, the atomizer unit 240 is fitted and coupled to the first case 250 by a fitting portion 253. The reservoir 20 communicates with the inside of the atomizer 40 through a liquid conduction path 81. A space 180 between the upper portion of the atomizer 40 and the second case 225 communicates with the flow path 252 opened in the first case 250.

  Each unit and the first case 250 described above are linearly coupled and integrated as shown in FIG. Each unit is easily detachable because it is screwed or fitted to another adjacent unit. In particular, since there is an opportunity to replace the battery 140 and the reservoir 20 that are consumables, a unit can be formed as described above so that the battery 140 and the reservoir 20 can be attached and detached without using a special tool or the like. .

  Next, the operation of the suction device 200 will be described with reference to FIG. The battery 140 supplies power to the control unit 145, and the control unit 145 includes a power supply control circuit (not shown) and a high-frequency oscillation circuit unit that outputs an excitation signal to the surface acoustic wave element 50. Therefore, an excitation signal is output from the control unit 145 to the surface acoustic wave element 50.

  The liquid in the reservoir 20 is dropped as a droplet on the surface of the surface acoustic wave element 50 via the liquid conduction path 81 by capillary action. The surface acoustic wave element 50 generates a surface acoustic wave based on the excitation signal in conjunction with the dropping of the liquid and atomizes the liquid by the radiation wave. The atomized liquid fine particles once stay in the space 180. Here, the user holds the grip opening 251 at the tip of the first case 250 and sucks the liquid fine particles.

  In the second case 225, an air circulation hole 226 is opened. Therefore, since external air flows in from the air circulation hole 226 when sucked from the tail opening 251, the pressure in the space 180 becomes substantially constant (atmospheric pressure), and continuous suction is facilitated.

  Therefore, the above-described suction device 200 of the present invention drops the liquid stored in the reservoir 20 onto the surface acoustic wave element 50 through the liquid conduction path 81 and efficiently atomizes the liquid by the atomizer 40 described above. Then, the suction can be sucked from the tail opening 251.

  Further, since the battery unit 210, the control unit 220, the reservoir unit 230, the atomizer unit 240, and the first case 250 are detachably unitized, the assemblability is good and each of them can be disassembled independently. Can be maintained, so that there is an effect that the maintainability is good. In particular, since the reservoir 20 and the battery 140 are consumables and need to be replaced, according to the structure of this embodiment, they can be easily replaced.

  Moreover, since each unit is made detachable, the atomizer unit 240 to which the liquid adheres and the first case 250 held in the mouth can be easily cleaned. In particular, if the first case 250 is made of a material having excellent heat resistance and chemical resistance, sterilization and the like can be performed independently, so that the suction device 200 excellent in terms of hygiene can be realized.

  Further, since the fine particles atomized in the surface acoustic wave element 50 are discharged only from the discharge port 71, it is possible to prevent a drive abnormality caused by liquid or atomized fine particles adhering to the control unit 145.

In addition, since these units are connected in series, they can be in the form of a thin pipe, and the portable suction device 200 can be provided.
Furthermore, since the atomized liquid fine particles are concentrated and sucked in the flow path 252 of the first case 250, the liquid fine particles can be sucked efficiently.

  It should be noted that the present invention is not limited to the above-described embodiment, but includes modifications and improvements as long as the object of the present invention can be achieved.

The atomization apparatus of the present invention described above can atomize and atomize various liquids such as flavor liquids, chemicals, and paints.
In addition, it can be used as an smoking device that is harmless to the environment and human body, such as an electronic cigarette, and an oral suction device for chemicals.

The top view of the atomization apparatus which concerns on Embodiment 1 of this invention. Sectional drawing which shows the AA cut surface of FIG. 1 is a plan view showing a surface acoustic wave element according to Embodiment 1 of the present invention. The top view which shows the atomization apparatus which concerns on Embodiment 2 of this invention. Sectional drawing which shows the BB cut surface of FIG. Sectional drawing which shows a part of atomization apparatus which concerns on Embodiment 3 of this invention. Sectional drawing shown about the form of the reservoir | reserver which concerns on Embodiment 3 of this invention. Sectional drawing which shows the reservoir | reserver which concerns on Embodiment 4 of this invention. Sectional drawing which shows schematic structure of the suction apparatus by this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Atomization apparatus, 20 ... Reservoir, 40 ... Atomizer, 50 ... Surface acoustic wave element, 51 ... Piezoelectric substrate, 70 ... Liquid supply plate, 80 ... Space, 81 ... Liquid conduction path as a liquid supply means, 145 ... Control unit including high frequency power supply.

Claims (19)

A reservoir containing the liquid;
A surface acoustic wave element in which an IDT electrode is formed on the principal surface of the piezoelectric substrate;
A high-frequency oscillation circuit section for generating a surface acoustic wave in the surface acoustic wave element;
An atomizer comprising: the surface acoustic wave element; and a liquid supply plate having a space in a thickness direction of a propagation region of the surface acoustic wave and fixed to the surface acoustic wave element;
Liquid supply means for communicating the reservoir and the space, and supplying the liquid to the surface acoustic wave propagation region by capillary action;
An atomizing device characterized in that is provided. The atomization device according to claim 1,
The space is formed by a ring-shaped spacer disposed between the liquid supply plate and the piezoelectric substrate, and is formed in a range including a propagation region of the surface acoustic wave. Atomization device. In the atomization apparatus of Claim 1 or Claim 2,
The atomizing apparatus, wherein the liquid supply means is a liquid conduction path formed on the liquid supply plate and having a minute gap communicating the reservoir and the space. In the atomization apparatus as described in any one of Claim 1 thru | or 3,
An atomizing device comprising a plurality of end portions communicating with the space of the liquid conduction path. In the atomization apparatus as described in any one of Claims 1 thru | or 4,
The atomization apparatus, wherein the liquid supply plate is formed of a lyophilic material, or a lyophilic film is formed on at least a surface in contact with the liquid. In the atomization apparatus as described in any one of Claims 1 thru | or 5,
An atomizing device, wherein a lyophilic film having an insulating property is formed in a propagation region of the surface acoustic wave of the surface acoustic wave element. The atomization device according to claim 6,
A lyophilic film formed on the surface of the surface acoustic wave propagation region;
A liquid repellent film formed on the outer periphery of the surface acoustic wave propagation region;
An atomizing device characterized in that is provided. In the atomization apparatus as described in any one of Claim 1 thru | or 7,
A septum provided at the liquid outlet of the reservoir;
A liquid intake port protruding from the liquid supply plate, and
An atomizing apparatus, wherein the reservoir and the space are communicated with each other by inserting the liquid intake into the septum. The atomization device according to claim 1,
The liquid supply means includes a first liquid-absorbing porous member having one end in contact with the liquid accommodated in the reservoir and the other end in contact with the surface of the surface acoustic wave propagation region. An atomizing device, characterized in that it is inserted into or attached to. The atomization device according to claim 9,
A second liquid-absorbing porous member having elasticity is further provided between the other end of the first liquid-absorbing porous member and the surface of the surface acoustic wave propagation region. Atomization device. The atomization device according to claim 9 or 10,
An atomization apparatus, wherein a film having low liquid permeability is formed on a surface excluding one end and the other end of the first liquid-absorbing porous member. The atomization device according to claim 1,
The reservoir and the atomizer are detachable,
The reservoir has a third liquid-absorbing porous member communicating with the inside and outside of the reservoir;
The atomizer has a fourth liquid-absorbing porous member communicating the outside of the atomizer and the space;
When the reservoir and the atomizer are mounted, the end surfaces of the third liquid-absorbing porous member and the fourth liquid-absorbing porous member are in contact with each other. The atomization device according to claim 12,
The liquid absorbing porous member having elasticity is provided on at least one of the contact surfaces of the third liquid absorbing porous member and the fourth liquid absorbing porous member. Atomizing device to do. The atomization device according to claim 12 or 13,
The atomizing device, wherein the reservoir includes a cap surrounding the third liquid-absorbing porous member or the liquid-absorbing porous member having elasticity. The atomization device according to claim 11 or 13,
A case having higher rigidity than the reservoir for storing the reservoir, wherein the third liquid-absorbing porous member or the liquid-absorbing porous member having elasticity protrudes outside the case; A characteristic atomizer. The atomization device according to any one of claims 1 to 15,
An atomizing device, wherein a septum for injecting liquid from outside is provided in the reservoir. The atomization device according to claim 15 or 16,
An atomizing device, wherein an opening for injecting liquid into the reservoir is provided in the vicinity of the septum. The atomization device according to any one of claims 12 to 17,
An atomization further comprising a cap surrounding the third liquid absorbent porous member or the elastic liquid absorbent porous member in a state where the reservoir is separated from the atomizer. apparatus. A reservoir for storing a liquid; a surface acoustic wave element in which an IDT electrode is formed on a main surface of a piezoelectric substrate; a high-frequency oscillation circuit unit that generates a surface acoustic wave in the surface acoustic wave element; and the surface acoustic wave element; A nebulizer comprising a liquid supply plate having a space in the thickness direction of the propagation region of the surface acoustic wave and fixed to the surface acoustic wave element, and the reservoir and the space communicate with each other by capillary action. An atomizer comprising: a liquid supply means for supplying the liquid to the surface acoustic wave propagation region; and the reservoir and the space communicate with each other, and the liquid is supplied to the surface acoustic wave propagation region by capillary action An atomizing device provided with a liquid supply means,
A control unit including at least the high-frequency oscillation circuit unit;
A power source for supplying power to the control unit;
A tail opening having a flow path through which liquid fine particles atomized by the atomizing device circulate;
A suction device comprising:

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