阅读说明：本技术 气溶胶供给装置 (Aerosol supply device ) 是由 稻垣道弘 阿部裕树 若松美纪 菅沼辰矢 于 2020-03-27 设计创作，主要内容包括：气溶胶供给装置(1)具备：容纳部(储液盒(4)),其容纳液体(10)；雾化单元(5),其具有存留液体(10)的存留部(5b),对液体(10)进行雾化而生成气溶胶(11)；温度调节部,其在从容纳部(储液盒(4))到存留部(5b)的任意部位对液体的温度进行调节。(An aerosol supply device (1) is provided with: a storage unit (liquid storage box (4)) that stores liquid (10); an atomizing unit (5) which has a storage part (5b) for storing a liquid (10) and atomizes the liquid (10) to generate an aerosol (11); and a temperature adjusting part for adjusting the temperature of the liquid at any position from the accommodating part (the liquid storage box (4)) to the storage part (5 b).)

1. An aerosol supply device is characterized by comprising:

a containing section that contains a liquid;

an atomizing unit having a storage section for storing the liquid supplied from the storage section, and generating an aerosol by atomizing the liquid stored in the storage section;

and a temperature adjusting unit that adjusts the temperature of the liquid at any position from the accommodating unit to the storage unit.

2. The aerosol provision device of claim 1, which is an aerosol provision device that supplies the aerosol by atomizing the liquid by vibration, wherein,

the atomization unit is provided with:

a vibrating member that forms the aerosol by vibrating the liquid;

a vibration source that vibrates the vibration member by being supplied with electricity;

the aerosol supply device further includes a thermally conductive member thermally conductive section connected to the vibration member and the housing section,

the temperature adjustment unit includes the vibration member, the vibration source, and the member heat conduction unit.

3. The aerosol provision device of claim 1 or 2, which is an aerosol provision device that atomizes the liquid by vibration to supply the aerosol, wherein,

the atomization unit is provided with:

a vibrating member that forms the aerosol by vibrating the liquid;

a vibration source that vibrates the vibration member by being supplied with electricity;

the aerosol supply device further includes a control unit for controlling the electric power supplied to the vibration source,

the control unit performs control as follows:

making the electric power a first electric power when the temperature of the liquid is a first temperature,

causing the electric power to be a second electric power larger than the first electric power when the temperature of the liquid is a second temperature lower than the first temperature,

the electric power is made to be a third electric power smaller than the first electric power at a third temperature higher than the first temperature of the liquid.

4. The aerosol provision device of claim 2 or 3, which is an aerosol provision device that supplies the aerosol by atomizing the liquid by surface elastic waves,

the vibration member is a piezoelectric element substrate having a piezoelectric element,

the vibration source is a comb-shaped electrode that generates surface elastic waves on the piezoelectric element substrate.

5. The aerosol provision device of any one of claims 1 to 4,

an insulating structure having a lower thermal conductivity than the housing portion is provided between the housing portion and the outside of the aerosol supply device.

6. The aerosol provision device of any of claims 1 to 5,

the aerosol supply device further includes a frame that covers at least the housing portion so as to face the outside of the aerosol supply device,

the temperature adjustment unit includes an external heat conduction unit having thermal conductivity connecting the housing unit and an outer surface of the frame.

7. The aerosol provision device of any of claims 1 to 6,

the temperature adjustment unit includes a cooling unit that absorbs heat at any position from the storage unit to the storage unit.

8. The aerosol provision device of any of claims 1 to 7,

the temperature adjusting section includes a heating section that releases heat at any position from the accommodating section to the storage section.

9. The aerosol provision device of claim 7 or 8, which is an aerosol provision device that supplies the aerosol by atomizing the liquid by surface elastic waves,

the atomization unit is provided with:

a piezoelectric element substrate that has a piezoelectric element and forms the aerosol by vibrating the liquid;

a comb-shaped electrode that generates a surface acoustic wave on the piezoelectric element substrate by being supplied with power;

the cooling unit or the heating unit is disposed at a position where the piezoelectric element substrate is cooled or heated.

10. The aerosol provision device of any one of claims 1 to 9,

the temperature adjustment section includes a peltier element.

11. The aerosol provision device according to any one of claims 1 to 10, further comprising:

a pump capable of supplying the liquid to the atomizing unit;

a control unit that controls power supplied to the pump;

a temperature sensor that detects a temperature around the housing portion;

the pump is a syringe pump capable of drawing back the liquid from the atomizing unit to the accommodating portion side,

the control unit controls the pump to draw the liquid from the atomizing unit to the containing unit side or push the liquid from the containing unit to the atomizing unit side when the temperature of the liquid detected by the temperature sensor is equal to or higher than a predetermined temperature or lower.

Technical Field

The present invention relates to an aerosol supply device for supplying an aerosol obtained by atomizing a liquid.

Background

In recent years, aerosol supply devices such as flavor extractors that can provide flavor without burning a flavor source such as a cigarette have been widely used.

Further, as an aerosol supply device, an inhaler which atomizes a liquid using ultrasonic waves and can supply the liquid to a user is known.

Patent document 1 discloses an aerosol supply device (described as a liquid atomizing device in this document) for generating an aerosol by using a Surface Acoustic Wave (also referred to as SAW).

Specifically, the aerosol supply device of patent document 1 atomizes the liquid supplied from the liquid supplier through the supply hole by using the surface elastic waves generated by the piezoelectric element substrate and the comb-shaped electrodes formed on the piezoelectric element substrate.

Documents of the prior art

Patent document

Patent document 1: japanese unexamined patent publication No. 2012-24646

Disclosure of Invention

Technical problem to be solved by the invention

However, in the atomization of a liquid, the viscosity and surface tension of the liquid change due to the temperature of the liquid, and the atomization amount varies. Specifically, the viscosity and surface tension of the liquid change, and the waviness of the liquid surface and the way of separating particles also change. Therefore, even if the same power is supplied to the comb-shaped electrodes and surface elastic waves of the same energy are propagated in the liquid, the amount of atomization varies. That is, even when the same electric power is supplied to the comb-shaped electrode, the higher the viscosity of the liquid and the lower the surface tension, the lower the atomization amount of the liquid.

In this regard, since the aerosol supply device described in patent document 1 is not provided with a temperature adjustment mechanism, the atomization amount may be reduced by the influence of the ambient temperature.

In addition, when the outside air temperature is low, when the liquid is solidified, the liquid cannot be supplied onto the piezoelectric element substrate, and the aerosol cannot be generated in some cases.

The present invention has been made in view of the above problems, and an object thereof is to provide an aerosol supply device capable of stabilizing an atomization amount of a liquid and stably supplying an aerosol.

Technical solution for solving technical problem

An aerosol supply device according to the present invention is characterized by comprising: a containing section that contains a liquid; an atomizing unit having a storage section for storing the liquid supplied from the storage section, and generating an aerosol by atomizing the liquid stored in the storage section; and a temperature adjusting unit that adjusts the temperature of the liquid at any position from the accommodating unit to the storage unit.

ADVANTAGEOUS EFFECTS OF INVENTION

According to the aerosol supply device of the present invention, the supply of the liquid to the atomizing unit can be stabilized, and the aerosol can be stably supplied to the outside of the aerosol supply device.

Drawings

Fig. 1 is an explanatory view schematically showing the structure of an aerosol supply device according to the present embodiment.

Fig. 2 is a schematic view showing a state where liquid is atomized and discharged to the outside of the aerosol supply device.

Fig. 3 is a plan view showing the atomizing unit.

Fig. 4 is a schematic diagram illustrating an aerosol supply device including a peltier element and a temperature sensor according to a first modification.

Fig. 5 is a schematic diagram illustrating a housing to which a urethane foam is attached and an external heat conduction unit according to a second modification.

Detailed Description

Embodiments of the present invention will be described below with reference to the drawings. The embodiments described below are merely examples for facilitating understanding of the present invention, and do not limit the present invention. That is, the shape, arrangement, material, and the like of the components described below can be modified or improved without departing from the gist of the present invention, and it is obvious that the present invention includes equivalents thereof.

In all the drawings, the same components are denoted by the same reference numerals, and overlapping description thereof will be omitted as appropriate.

< summary >

First, an outline of the aerosol supply device 1 of the present embodiment will be described with reference to fig. 1 and 2. Fig. 1 is an explanatory diagram schematically showing a configuration of an aerosol supply device 1 according to a first embodiment. Fig. 2 is a schematic diagram showing the atomization of the liquid 10 and the discharge thereof to the outside of the aerosol provision device 1. In view of sealing performance, gaskets and packing are provided between the components constituting the aerosol supply device 1, but in the drawings such as fig. 2, the illustration thereof is partially omitted for easy understanding.

The aerosol supply device 1 of the present embodiment is characterized by including: a containing portion (liquid cartridge 4) that contains liquid 10; an atomizing unit 5 having a storage part 5b for storing the liquid 10 supplied from the storage part (liquid cartridge 4), and generating an aerosol 11 by atomizing the liquid 10 stored in the storage part 5 b; and a temperature adjusting section (the piezoelectric element substrate 5a, the electrode 5c, and the member heat conduction section 40) that adjusts the temperature of the liquid 10 at any position from the accommodating section (the liquid cartridge 4) to the storage section 5 b.

In particular, if a heat conduction unit, a heat source, or a cooling unit is directly provided as a temperature adjustment unit in the "arbitrary portion from the housing unit to the storage unit 5 b", the temperature of the liquid 10 can be efficiently adjusted by supplying or absorbing heat, which is preferable.

According to the above configuration, by adjusting the temperature of the liquid 10 from the containing section to the storage section 5b, the atomization amount of the liquid 10 can be stabilized without being affected by the outside air temperature, and the aerosol 11 can be stably supplied to the outside of the aerosol supply device 1.

< first embodiment >

< composition of each part >

Next, the structure of each part of the aerosol supply device 1 will be described with reference to fig. 3 in addition to fig. 1 and 2. Fig. 3 is a plan view showing the atomizing unit 5.

The aerosol supply device 1 of the present embodiment atomizes the liquid 10 by vibration (surface acoustic wave) to supply the aerosol 11. The term "vibration" is used herein to apply to atomization because high-frequency vibration can be propagated if surface acoustic waves are used, but is not limited thereto, and may be vibration of the entire target object (vibration member).

(atomizing unit)

As shown in fig. 2 and 3, the atomizing unit 5 includes: a vibrating member (piezoelectric element substrate 5a) that vibrates the liquid 10 to form the aerosol 11, and a vibration source (electrode 5c) that vibrates the vibrating member by being supplied with power.

In particular, in the present embodiment, the "vibration member" is the piezoelectric element substrate 5a having the piezoelectric element, and the "vibration source" is the comb-shaped electrode 5c that generates the surface elastic wave on the piezoelectric element substrate 5 a.

According to the above configuration, the energy required for atomization by the surface acoustic wave can be efficiently used.

(piezoelectric element substrate)

The piezoelectric element substrate 5a of the present embodiment is made of lithium niobate including a piezoelectric body, and has a storage section 5b for storing the liquid 10.

As shown in fig. 3, the storage portion 5b provided in the piezoelectric element substrate 5a of the present embodiment is a bottomed groove formed on the upper surface of the piezoelectric element substrate 5a and formed into an elliptical shape in a plan view. The storage part 5b is provided at least two locations, and the electrode 5c is disposed between the two locations. A through hole 5d formed to penetrate through the piezoelectric element substrate 5a in the thickness direction is formed in the center of the storage portion 5 b. The liquid 10 is supplied from the reservoir 4 to the reservoir 5b through the first flow path 6 (tube 6a) and the through hole 5d by a pump 9 described below.

(electrode)

The electrode 5c is disposed in contact with the piezoelectric element substrate 5a, and supplies surface acoustic waves to the liquid 10 stored in the storage section 5b on the piezoelectric element substrate 5 a.

The electrode 5c is formed of a comb-shaped electrode (IDT). The high-frequency power input from the power supply substrate 13 to the electrode 5c via the control substrate 12 is converted into Surface Acoustic Waves (SAW) by utilizing the piezoelectric phenomenon of the piezoelectric element substrate 5a, and propagates on the Surface of the piezoelectric element substrate 5a to both sides in the arrangement direction of the comb teeth.

The number of teeth of the electrode 5c is not limited to the illustrated one, but is determined based on the atomization efficiency of the aerosol 11, and the atomization efficiency of the aerosol 11 is determined by the surface elastic wave. The width and spacing of the teeth are determined by the frequency based on the particle size of the atomized aerosol 11.

Since control of the frequency of the electric power and the like is important in the surface acoustic wave, a resonance frequency monitoring sensor for monitoring the resonance frequency or a temperature sensor, not shown, capable of detecting the temperature of the liquid 10 just before atomization may be provided.

In terms of appearance, the aerosol supply device 1 of the present embodiment is mainly composed of a device main body 2 and an air nozzle 3 attached to an upper portion of the device main body 2 and configured to supply and discharge an aerosol 11.

(Heat conduction member)

The aerosol supply device 1 further includes a thermally conductive member thermally conductive section 40 connected to the vibration member (piezoelectric element substrate 5a) and the housing section (liquid container 4). Here, "having thermal conductivity" means that the thermal conductivity is high. The member heat conduction portion 40 is formed of a material such as copper, aluminum, or carbon. More specifically, the member heat conduction portion 40 has higher heat conductivity than other members (e.g., the tube portion 6a in the present embodiment) that are in contact with the liquid 10 between the piezoelectric element substrate 5a and the liquid reservoir 4.

The "temperature adjustment unit" of the present invention includes a vibration member (piezoelectric element substrate 5a), a vibration source (electrode 5c), and a member heat conduction unit 40.

According to the above configuration, the heat of the piezoelectric element substrate 5a caused by the vibration generated from the electrode 5c to the vibrating member (piezoelectric element substrate 5a) and transmitted to the atomized liquid 10 can be dissipated by the member heat conduction portion 40. Therefore, damage of the vibration member (piezoelectric element substrate 5a) due to heat increase can be suppressed. Further, since the housing portion (the liquid cartridge 4) can be heated, the solidification of the liquid 10 in the liquid cartridge 4 can be suppressed even in a low-temperature environment, and the aerosol supply device 1 can be stably supplied.

(thermostat)

The aerosol supply device 1 of the present embodiment includes a thermostat 41 capable of physically connecting and disconnecting the piezoelectric element substrate 5a and the component heat conduction unit 40 according to the temperature inside the aerosol supply device 1.

The thermostat 41 has a function of transmitting heat generated in the piezoelectric element substrate 5a to the reservoir 4 when the temperature reaches a predetermined temperature or higher. For example, the thermostat 41 releases the physical connection between the piezoelectric element substrate 5a and the component heat conduction portion 40 in a normal use state such as at the start of use, by utilizing a change in the shape of the bimetal or a change in the volume of wax.

Then, in order to atomize the liquid 10, an ac voltage is applied from the electrode 5c to the piezoelectric element substrate 5a, and SAW is generated on the piezoelectric element substrate 5a, thereby increasing the temperature of the piezoelectric element substrate 5 a. When the temperature is higher than or equal to the predetermined temperature, the thermostat 41 automatically operates to physically connect the piezoelectric element substrate 5a and the component heat conduction unit 40.

With such a configuration, the temperature of the piezoelectric element substrate 5a can be easily maintained within a predetermined temperature range by the liquid storage tank 4, and the atomization amount can be easily stabilized, which is preferable.

Instead of using the thermostat 41, the control unit 12a described below may be configured to operate the member heat conduction unit 40 in contact with the piezoelectric element substrate 5a by driving an actuator, not shown, based on a signal relating to the temperature detected by the temperature sensor 49 described below shown in fig. 4.

For example, when the temperature sensor 49 detects that the temperature reaches a temperature at which the liquid 10 in the liquid storage tank 4 is determined to be solidified, the control unit 12a may perform control so as to bring the member heat conduction unit 40 into contact with the piezoelectric element substrate 5 a.

Further, the piezoelectric element substrate 5a and the member heat conduction portion 40 may be always connected to each other.

The thermostat 41 is not limited to the above-described structure in which the heat is radiated from the piezoelectric element substrate 5a by mechanical operation. For example, the control unit 12a may switch the current direction of the peltier element 48 described below as shown in fig. 4 by turning on and off the electric signal of the thermostat 41, so that the peltier element 48 functions as a cooler or a heater.

(air tap)

The air nozzle 3 of the present embodiment is formed to have a tapered portion in which the lower end thereof extends widely in front view, and the width thereof is narrower as the outlet 3a is closer to the outside of the aerosol 11 at the upper end.

As shown in fig. 2, the air nozzle 3 is provided with a flow path (second flow path 7) through which the aerosol 11 generated by the atomizing unit 5 passes. Two flow paths (second flow paths 7) are independently provided for passing the aerosol 11 generated from the liquid 10 in the at least two storage portions 5b, and the two flow paths are formed to be symmetrical with respect to a virtual plane passing through the discharge port 3 a. The two second flow paths 7 are merged into one before reaching the discharge port 3a at the upper end.

In addition, the independently provided flow paths (second flow paths 7) may be formed in different lengths. That is, the two second flow paths 7 are not limited to being formed symmetrically with respect to the virtual plane passing through the discharge port 3a, and may be formed asymmetrically. For example, when the aerosol 11 containing different components passes through the two second flow paths 7, flow paths having corresponding lengths or shapes may be provided.

It is particularly preferable that, for example, the two independently provided second flow paths 7 have asymmetric portions formed with different bending ratios.

According to the above configuration, the aerosol 11 is brought into contact with the wall surface defining the asymmetric portion having different bending ratios in the two second flow paths 7, whereby particles contained in the aerosol can be deposited and reduced, and the particle diameter can be adjusted. Therefore, the user can smoothly suck the aerosol 11 without feeling discomfort in the throat due to the components contained in the aerosol 11.

Here, "bent" is a concept not limited to a sharp bend but also includes a gentle bend. The two second flow paths 7 having different bending ratios are not limited to those formed by bending both the two, and include those formed straight.

The air faucet 3 of the present embodiment includes a duckbill valve 8b and a second flow path 7 divided into two by a flow split, but the air faucet of the present invention is not limited to this.

For example, the duckbill valve 8b may not be provided, or a single flow path (first flow path 6) for the liquid 10 supplied from the reservoir 4 may be provided, and a second flow path 7 continuous thereto may be provided.

With this configuration, the second flow path 7 can be shortened before the aerosol 11 generated from the atomizing unit 5 reaches the discharge port 3 a. By shortening the second flow path 7, condensation of the aerosol 11 can be suppressed.

(device body)

As shown in fig. 2, the apparatus main body 2 includes: the liquid storage case 4, the solenoid valve 8a, the pump 9, the control board 12 having the control section 12a, the frame 45 housing the power board 13, the battery 14, and the like, and the lid 46 attached to the open upper end of the frame 45 and having a recess in which the atomizing unit 5 is housed in the upper portion thereof. The device body 2 is provided with a power switch 15 exposed to the outside.

Further, a flow path (first flow path 6) for the liquid 10 is formed in the apparatus main body 2 between the liquid cartridge 4 and the atomizing unit 5 described below. A flow path (second flow path 7) for the aerosol 11 is formed between the atomizing unit 5 and the outside within the range of the apparatus main body 2 and the below-described air nozzle 3.

(frame body)

The housing 45 of the present embodiment is provided with a heat insulating structure (vacuum region 45a) having lower thermal conductivity than the liquid cartridge 4 between the housing (liquid cartridge 4) and the outside of the aerosol supply device 1. Specifically, the heat insulating structure is configured by forming a vacuum region 45a evacuated between the inner layer and the outer layer of the frame 45.

Here, "vacuum" refers to a "state in a space filled with a gas having a pressure lower than atmospheric pressure" in a state in which a minute amount of molecules is allowed to exist. As described above, the formation of the vacuum region 45a provides an extremely low thermal conductivity, thereby providing a heat insulating effect and suppressing the influence of the external temperature on the liquid 10 in the liquid cartridge 4.

(liquid storage case)

The liquid storage case 4 of the present embodiment is composed of a main body 4a, a bottom plate 4b integrally formed at the bottom of the main body 4a, and a slider 4d which is arranged inside and is arranged in watertight relation to the inner wall surface of the main body 4a and is slidable in the main body 4 a.

A through hole 4c penetrating in the thickness direction is formed in the bottom plate 4b, and a press rod 9b of a pump 9 described below is inserted thereinto.

In the present embodiment, the liquid 10 can be supplied from the two liquid containers 4 to the two storage portions 5b of the piezoelectric element substrate 5a provided in the atomizing unit 5, independently one by one.

However, the present invention is not limited to this, and the liquid 10 may be supplied from one liquid cartridge 4 to two storage portions 5 b. With this configuration, the number of the solenoid valves 8a described below can be reduced. That is, the solenoid valve 8a may be provided in the pipe portion 6a on the side of the liquid cartridge 4 before being branched toward the two storage portions 5 b.

With this configuration, the supply and stop of the supply of the liquid 10 to the two reservoirs 5b can be regulated by one solenoid valve 8 a.

The aerosol supply device 1 may further include a plurality of reservoirs 4. In the case where two or more liquid containers 4 are used, the liquid containers 4 may contain liquids 10 having different components such as taste and flavor.

The storage unit of the present invention is not limited to the detachable liquid storage cartridge 4, and may be a container (refillable type) provided in the apparatus main body 2. When such a container is used, another channel communicating with the container and the outside may be formed so that the liquid 10 can be injected into the container through the other channel to fill the container with the liquid 10.

With such a configuration, when replenishing the liquid 10, it is not necessary to detach and reattach the solenoid valve 8a, the reservoir 4, and the tube 6a connecting these, which are provided on the user side.

(liquid)

The liquid 10 may contain a solvent such as water, glycerin, propylene glycol, or ethanol, or may contain a solute including a component such as a taste or flavor. For example, the solute is volatile components such as tobacco extract, camphor, linalool, limonene, vanillin, or nonvolatile components such as saccharides such as fructose, glucose, sucrose, or lactose, acids such as malic acid or citric acid, or salts.

The liquid 10 may be emulsified with an emulsifier or suspended with a dispersant. The liquid 10 may contain the above-mentioned nonfreezable liquid component such as glycerin, propylene glycol, or ethanol, and the melting point thereof may be at most-20 degrees, more preferably at most-30 degrees. If the liquid 10 contains an unfrozen liquid component, the liquid 10 in the atomizing unit 5 can be prevented from freezing even when the temperature of the external environment is low, such as in winter.

(volatilization prevention part)

A volatilization prevention unit 8 (solenoid valve 8a) is connected to a tube 6a connecting the liquid storage tank 4 and the atomizing unit 5 in the apparatus main body 2.

The volatilization prevention unit 8 (the electromagnetic valve 8a) includes an opening/closing unit (not shown) that can open and close the flow path (the first flow path 6) of the liquid 10.

According to the above configuration, the controller 12a operates the opening/closing portion of the solenoid valve 8a to close the first flow path 6, thereby preventing the liquid 10 in the housing portion (liquid storage cartridge 4) from volatilizing. Further, the controller 12a operates the opening/closing portion of the solenoid valve 8a to open the first flow path 6, thereby supplying the liquid 10 to the atomizing unit 5 and the aerosol 11 to the user.

In the present embodiment, a duckbill valve 8b constituting a check valve will be described as an example of the volatilization prevention section 8 for opening and closing the flow path of the aerosol 11. The duckbill valve 8b of the present embodiment is a valve made of a soft resin material and composed of opposing flat plates, and is a valve in which the opposing distance between the flat plates narrows toward the downstream (suction) side. The duckbill valve 8b closes the flow path by the contact of the plates with each other in a natural state, and opens the flow path by separating the plates from each other by suction pressure from the downstream side.

By the duckbill valve 8b functioning as a small check valve, the flow path of the aerosol 11 can be made narrow, the air nozzle 3 can be made small, and the aerosol supply device 1 can be made small. The duckbill valve 8b is preferably opened by a weak suction force without being affected by the direction of gravity, and the opening/closing portion is naturally closed by an elastic restoring force when the suction is stopped.

The two second flow paths 7 of the air faucet 3 are each provided with a volatilization prevention portion 8 (duckbill valve 8 b).

The volatilization prevention parts (duckbill valves 8b) are provided at positions on the two flow paths, respectively, and have the same length from the discharge port 3 a.

According to the above configuration, the aerosol 11 generated in the two storage portions 5b can be discharged from the discharge port 3a at the same time, and the aerosol 11 can be discharged with a small difference in discharge amount.

The volatilization prevention part 8 (duckbill valve 8b) is provided so as to be switchable between a state in which the flow path (second flow path 7) of the aerosol 11 is closed and a state in which the flow path (second flow path 7) of the aerosol 11 is opened.

According to the above configuration, the duckbill valve 8b closes the second flow path 7 of the aerosol 11 to restrict volatilization of the liquid 10 having the saturated vapor pressure as the upper limit in the closed space, thereby suppressing precipitation of the solute on the atomizing unit 5 and suppressing a decrease in the atomizing efficiency.

The volatilization prevention unit 8 of the present embodiment is a valve body (duckbill valve 8b) configured to close the flow path (second flow path 7) of the aerosol 11 in a first state and open the flow path (second flow path 7) of the aerosol 11 in a second state in which the pressure state is changed by the suction of the user. The volatilization prevention part (duckbill valve 8b) is provided between the storage part 5b and the discharge port 3 a.

Specifically, the "first state" in the present embodiment refers to a state in which the user does not suck air inside the aerosol supply device 1 from the discharge port 3 a. Conversely, the "second state" refers to a state in which the user sucks air inside the aerosol supply device 1 from the discharge port 3 a.

According to the above configuration, since the opening/closing portion is a valve body, the aerosol 11 can be supplied to the user when the user performs suction, and the volatilization of the liquid 10 to the outside through the discharge port 3a can be prevented by closing the second flow path 7 when the user does not perform suction.

In the aerosol supply device 1 for atomizing the liquid 10 by the surface acoustic wave, the volatilization prevention unit (duckbill valve 8b) is provided between the storage unit 5b and the discharge port 3a, whereby the precipitation of the solute in the storage unit 5b can be prevented. Thereby, by suppressing the concentration change of the solute of the liquid 10, stable taste or flavor can be provided.

Note that the "valve body" of the present invention is not limited to the duckbill valve 8b, and other electrically driven valves such as a solenoid valve similar to the solenoid valve 8a and an air pinch valve for closing a tube by pressurizing supplied air may be used. For example, in the case of using an electrically driven valve, a part of the second flow path 7 may be formed of a flexible tube portion to which the electrically driven valve can be connected.

Further, by using the electrically driven valve instead of the duckbill valve 8b, even if the user includes the discharge port 3a of the air nozzle 3 but does not apply the suction pressure, the aerosol 11 can be discharged to the outside by the opening control of the electrically driven valve of the control portion 12 a. That is, the present invention is applicable to a case where a diffuser for spraying aerosol without depending on the suction of a user is used. For example, the control section 12a controls the opening of the electrically driven valve in accordance with the operation of the power switch 15 described below.

The "valve body" is described by taking as an example the duckbill valve 8b which is a check valve, but is not limited to this, and may be any valve body as long as it can prevent volatilization by closing the flow path in a natural state, and may be configured to allow a reverse flow to occur in a state where a positive pressure is applied, for example.

Similarly, the volatilization prevention unit that opens and closes the first flow path 6 is not limited to the electromagnetic valve 8a, and another electrically driven valve such as an air pinch valve that closes a tube portion by pressurizing the supply air may be used.

The volatilization prevention unit that opens and closes the first channel 6 or the second channel 7 may be driven in a non-electrical manner. That is, the user may open and close the first flow path 6 or the second flow path 7 by physical driving (movement of a barrier not shown) by attaching or inserting the air faucet 3 to the apparatus main body 2.

In addition, in a state where the suction pressure is not applied, as shown in fig. 4, the second flow path 7 is closed by the duckbill valve 8b, so that even if foreign matter enters the discharge port 3a in a non-use state of the aerosol supply device 1, it is possible to prevent the foreign matter from entering the atomizing unit 5. Therefore, the discharge of the aerosol 11 containing foreign substances can be suppressed, which is advantageous in view of hygiene.

(Pump)

The aerosol supply device 1 further includes a pump 9 capable of supplying the liquid 10 to the atomizing unit 5. The pump 9 of the present embodiment is a syringe pump capable of drawing the liquid 10 from the atomizing unit 5 to the accommodating portion (the liquid cartridge 4) side.

In this way, since the pump 9 is a syringe pump, the liquid 10 can be drawn from the atomizing unit 5 toward the accommodating portion (the liquid cartridge 4). The details will be described later.

Therefore, by reducing the amount of the liquid 10 remaining on the atomizing unit 5, it is possible to suppress precipitation of the solute on the atomizing unit 5.

Specifically, the pump 9 includes a motor 9a and a pressure rod 9b that can move forward and backward by the rotational operation of the motor 9 a. When the pressing rod 9b pushes the slider 4d upward through the through hole 4c by the operation of the pump 9, the liquid 10 is pushed by the slider 4d and supplied to the atomizing unit 5.

In this way, if the pump 9 is a syringe pump, the liquid 10 can be drawn back by retracting the plunger 9b through the through hole 4c of the liquid cartridge 4, and the liquid 10 can be drawn back to the retracted position from the storage portion 5 b. Therefore, it is preferable that the amount of solute deposited in the reservoir 5b can be reduced.

For example, when citric acid is mixed in the liquid 10, the citric acid which is not misted may be precipitated and solidified in the liquid 10 remaining in the storage portion 5 b. As described above, the liquid 10 is drawn back from the storage portion 5b by the pump 9, so that precipitation of citric acid in the storage portion 5b is suppressed, and variation in the concentration of citric acid in the liquid 10 is suppressed, whereby stable taste or flavor can be provided.

Further, by providing the slider 4d in contact with the liquid 10 on the side of the liquid cartridge 4, the pump 9 (the pressure bar 9b) is not in direct contact with the liquid 10. For example, when a different type of liquid cartridge 4 is replaced to change the type of liquid 10 having a taste or flavor, the pump 9 is not replaced during the time measurement, and there is no possibility that components such as the taste or flavor are mixed before and after the liquid change.

However, the pump of the present invention is not limited to this, and may be, for example, a piezoelectric pump, not shown. The piezoelectric pump can provide a product with low power consumption. Further, the liquid 10 may be supplied by a structure utilizing a capillary phenomenon.

(control substrate)

The aerosol supply device further includes a control board 12 having a control unit 12a for controlling the power supplied to the vibration source (electrode 5 c).

The control unit 12a controls each electronic device, particularly the atomizing unit 5, to supply power to the electrode 5c, thereby generating surface elastic waves on the surface of the piezoelectric element substrate 5 a.

The controller 12a also controls the operations of the pump 9, the solenoid valve 8a, and the like. The control unit 12a of the present embodiment changes the electromagnetic valve 8a from the closed state, which is the normal state, to the open state when receiving a signal from the power supply board 13 that the user operates the power switch 15 to put the aerosol supply device 1 into the operating state.

The control unit 12a operates the motor 9a of the pump 9 to press the slide block 4d in a direction (upward) in which the volume of the liquid cartridge 4 is reduced by the pressure bar 9 b. Thus, by supplying the liquid 10 to the reservoir 5b through the first channel 6, the liquid 10 resonates with the surface acoustic wave and is atomized on the surface of the piezoelectric element substrate 5 a.

In this state, the user inhales the internal air of the aerosol supply device 1 through the discharge port 3a, and thus the discharge port 3a side of the duckbill valve 8b becomes a negative pressure. Thereby, the duckbill valve 8b is opened so that the user can inhale the aerosol 11 passing through the duckbill valve 8 b.

In addition, the control unit 12a operates the electromagnetic valve 8a (opening/closing unit) to close the flow path of the liquid 10 when the aerosol supply device 1 is not in use, for example, when the power switch 15 is closed.

In particular, when the control unit 12a closes the flow path of the liquid 10, the pump 9 is controlled to supply the liquid 10 to the atomizing unit 5, and then the liquid 10 is drawn back from the atomizing unit 5 to the housing portion (the liquid cartridge 4) side, and the flow path through which the liquid 10 is supplied to the atomizing unit 5 via the opening/closing portion (the solenoid valve 8a) is closed.

According to the above configuration, when the solute is deposited on the atomizing unit 5, the solute can be dissolved again by supplying the liquid 10 to the atomizing unit 5. Thereafter, by drawing the liquid 10 from the atomizing unit 5 toward the liquid reservoir 4, the amount of solute remaining in the atomizing unit 5 can be reduced as compared with the case where the liquid 10 is not supplied to the atomizing unit 5 and is drawn toward the liquid reservoir 4. Therefore, deposition of the solute on the atomizing unit 5 (piezoelectric element substrate 5a) can be further suppressed.

The control unit 12a may adjust the output of the pump 9 to change the feed rate of the pressure bar 9b or adjust the output of the SAW to stabilize the atomization amount based on the consumption amount of the liquid 10 per unit time detected by a sensor, not shown.

[ first modification ]

Next, a temperature adjustment unit (peltier element 48) according to a first modification will be described with reference mainly to fig. 4. Fig. 4 is a schematic diagram illustrating an aerosol supply device 1X including a peltier element 48 and a temperature sensor 49 according to a first modification.

The temperature adjustment unit of the present modification includes a cooling unit (peltier element 48) that absorbs heat at any position from the housing unit (reservoir 4) to the storage unit 5 b.

The temperature adjusting unit may include a heating unit (peltier element 48) that releases heat at any position from the accommodating unit (reservoir 4) to the storage unit 5 b.

According to the above configuration, since the liquid container includes the peltier element 48 or the heating unit 48, the temperature of the liquid 10 passing through any portion from the containing unit (the liquid storage case 4) to the storage unit 5b can be adjusted by cooling or heating the portion, thereby stabilizing the atomization amount. That is, the influence of the outside air temperature can be suppressed.

In particular, if the cooling unit is the peltier element 48, at least a part of the inside of the aerosol supply device 1X can be appropriately cooled to a temperature equal to or lower than the outside air temperature, and therefore, this is preferable as compared with an air cooling facility.

For example, when the peltier element 48 is used, since a refrigerant such as freon is not used, the influence on the environment is extremely small, the size and weight can be reduced, the shape can be freely selected, and the interference with the components in the device can be easily avoided.

Further, since the peltier element 48 has both cooling and heating functions due to its good temperature response, it can control the temperature near the normal temperature, and has no movable part, and therefore, there is no vibration and noise. And because there are no fatigue or damaged mechanical parts, the cooling method is the most suitable one for the long life and high reliability of the device.

In addition, since the operation is possible only by the harness, the use is simple, there is no fear of leakage of the refrigerant, leakage of corrosive liquid, or the like, and the maintenance is easy.

However, the cooling unit of the present invention is not limited to this, and may be configured by an air-cooling facility such as a fan or a water-cooling facility, not shown.

Further, it may be provided with a flow path through which water from the outside can be supplied to a cooling target portion (for example, the piezoelectric element substrate 5a), and the evaporation of water may be promoted by blowing air to the portion with a fan (not shown), so that the target portion is cooled by the heat of vaporization at that time. Further, a refrigerant such as freon or hydrofluorocarbon may be fed into the apparatus, and the refrigerant may be rapidly expanded by an expansion valve, not shown, provided in the apparatus, to cool the air in contact with the target portion. Further, the refrigerant may be circulated between the apparatus and the outside of the apparatus, such as a heat pump.

In particular, the cooling portion (peltier element 48) or the heating portion (peltier element 48) of the present modification is disposed at a position where the piezoelectric element substrate 5a is cooled or heated.

The "position where cooling or heating is performed" is, specifically, a position where the cooling portion (peltier element 48) or the heating portion (peltier element 48) faces the piezoelectric element substrate 5a while being separated from or in contact with the piezoelectric element substrate. The "position where cooling or heating is performed" in the present embodiment is a position where the upper surface of the peltier element 48 is in contact with the lower surface of the piezoelectric element substrate 5 a.

According to the above configuration, since the temperature of the piezoelectric element substrate 5a which is in contact with the liquid 10 at the time of atomization can be adjusted, the amount of atomization can be appropriately adjusted as compared with a configuration in which the temperature of the piezoelectric element substrate which is away from the atomization position is controlled.

In particular, by disposing the cooling unit (peltier element 48) at the above-described position, the piezoelectric element substrate 5a, which is likely to increase in temperature due to the generation of the surface acoustic wave, can be appropriately cooled by the cooling unit, and the life of the piezoelectric element substrate 5a can be made long.

More specifically, a through hole 56a is formed in a portion of the lid 56 that faces a central portion of the lower surface of the peltier element 48. The lower surface of the peltier element 48 faces the internal space of the housing 45 through the through hole 56 a.

With such a configuration, the peltier element 48 discharges heat generated from the piezoelectric element substrate 5a to the internal space of the housing 45 under the control of the control unit 12 a.

The present invention is not limited to the structure in which the peltier element 48 of the present modification is provided at a position directly below the piezoelectric element substrate 5 a. That is, the peltier element 48 is not limited to a structure in which heat generated from the piezoelectric element substrate 5a is discharged to the internal space of the housing 45 by the peltier element 48.

For example, the peltier element 48 may be configured to discharge heat generated from the piezoelectric element substrate 5a to the outside of the aerosol supply device 1X. That is, the peltier element 48 may be configured to be capable of exchanging heat in any direction between the inside of the housing 45 and the outside of the aerosol supply device 1X.

Specifically, the peltier element 48 may be mounted on the housing 45 so that one surface thereof is exposed to the outside of the aerosol supply device 1X and the opposite surface thereof is exposed to the internal space of the housing 45. According to the above configuration, the cooling and heating of the internal space of the housing 45 can be switched by merely changing the direction of the current flowing to the peltier element 48.

In order to prevent the liquid 10 in the liquid cartridge 4 from freezing when the outside air temperature is low, or to melt the frozen portion into the liquid 10, a portion (heating portion) as a temperature adjusting portion that heats the liquid cartridge 4 is not limited to the peltier element 48. For example, a heater not shown may be used.

As shown in fig. 2 and described, the aerosol supply device 1 of the above embodiment includes a pump 9 capable of supplying the liquid 10 to the atomizing unit 5, and a control unit 12a that controls the power supplied to the pump 9. The aerosol supply device 1X of the present modification includes, in addition to these, a temperature sensor 49 that detects the temperature around the housing portion (the liquid cartridge 4) shown in fig. 4. The temperature sensor 49 is a member provided with a thermocouple and a temperature measuring resistor, for example.

The pump is a syringe pump capable of drawing the liquid 10 from the atomizing unit 5 to the accommodating portion (the reservoir 4) side, as in the pump of the first embodiment.

The controller 12a receives a detection signal from the temperature sensor 49, and controls the pump 9 to draw the liquid 10 from the atomizing unit 5 to the containing section side or push the liquid 10 from the containing section to the atomizing unit 5 side when the temperature of the liquid 10 detected by the temperature sensor 49 is equal to or higher than a predetermined temperature or lower than the predetermined temperature.

The "predetermined temperature" is, for example, a temperature indicated by temperature information stored in the control board 12, which is set in advance before shipment of the product. Further, in order to enable setting after shipment of the product, it is more preferable that the temperature is changeable in accordance with the external environment or the product state if the temperature can be set variably.

For example, in summer with a high outside air temperature, the liquid 10 may expand and overflow from a predetermined portion (for example, the storage portion 5 b). Such a situation that the liquid 10 overflows from a predetermined portion due to the influence of the outside air temperature and cannot be atomized can be suppressed by drawing the liquid 10 back to the accommodating portion side by the pump 9.

In winter when the outside air temperature is low, the liquid 10 may not reach the atomizing unit 5 due to contraction of the liquid 10. Such a situation where the liquid 10 cannot reach the atomizing unit 5 and cannot be atomized due to the influence of the outside air temperature can be suppressed by pushing the liquid 10 out toward the atomizing unit 5 side by the pump 9.

That is, according to the above configuration, the position of the liquid 10 can be kept in a reasonable position by controlling the pump 9 by the control unit 12 a.

When the control unit 12a receives a signal indicating that the power switch 15 is turned off, it is preferable to control the pump 9 to return the liquid 10 from the atomizing unit 5 into the liquid storage tank 4. By doing so, leakage from the reservoir 5b can be prevented.

When the control unit 12a receives a signal indicating that the power switch 15 is turned on, the pump 9 is preferably controlled so that the liquid 10 can be supplied to a proper liquid level (for example, the storage unit 5b) and kept in a ready state in which atomization can be performed at any time.

The controller 12a controls the electric power supplied to the vibration source (the electrode 5c, another vibration motor, or the like) to be the first electric power when the temperature of the liquid 10 is the first temperature, the electric power supplied to the vibration source to be the second electric power larger than the first electric power when the temperature of the liquid 10 is the second temperature lower than the first temperature, and the electric power supplied to the vibration source to be the third electric power smaller than the first electric power when the temperature of the liquid 10 is the third temperature higher than the first temperature.

That is, when the same electric power as that in the case where the temperature of the liquid 10 is low is supplied to the electrode 5c in the case where the temperature of the liquid 10 is high, the viscosity of the liquid 10 is low as compared with the case where the temperature of the liquid 10 is low, so that the atomization amount increases. This reduces the electric power supplied to the electrode 5c to suppress the fluctuation of the atomization amount.

On the contrary, when the temperature of the liquid 10 is low, the same electric power as that in the case where the temperature of the liquid 10 is high is supplied to the electrode 5c, the viscosity of the liquid 10 is high, and therefore the atomization amount is reduced, as compared with the case where the temperature of the liquid 10 is high. This increases the power supplied to the electrode 5c to suppress the fluctuation of the atomization amount.

According to the above configuration, by adjusting the electric power supplied to the vibration source (the electrode 5c, another vibration motor, or the like), the amount of aerosol 11 generated by atomization can be finely adjusted, and the atomization amount can be stabilized.

In particular, the amount of power supplied to the counter electrode 5c is preferably set so as to stably secure the atomization amount of the liquid 10 at a low temperature, based on the temperature at a low temperature (for example, the second temperature) at which the atomization amount is small.

Note that the "temperature of the liquid 10" in the present specification means a temperature calculated by a temperature detected by the temperature sensor 49 provided in the vicinity of the liquid storage cartridge 4 (in the space around the liquid storage cartridge 4). However, the temperature is not limited to this, and may be a temperature directly detected by a temperature sensor, not shown, disposed in direct contact with the liquid 10.

[ second modification ]

Finally, the temperature control unit (external heat conduction unit 50) and the heat insulating structure (urethane foam 55c) according to the second modification will be described mainly with reference to fig. 5. Fig. 5 is a schematic diagram illustrating a housing 55 and an external heat conduction unit 50 to which a urethane foam 55c is attached according to a second modification.

The aerosol supply device 1Y of the present modification includes a frame 55 that faces the outside of the aerosol supply device 1Y and covers at least the housing portion (the liquid cartridge 4). The temperature adjusting unit includes an external heat conduction unit 50 having thermal conductivity for connecting the housing unit (the liquid cartridge 4) and the outer surface of the frame 55. Here, "having thermal conductivity" means that the thermal conductivity is high, and the outer heat conduction portion 50 is configured to include a material such as copper, aluminum, or carbon. More specifically, the external heat conduction unit 50 has higher heat conductivity than other members (for example, the frame body 55 in the present embodiment) from the outside to the liquid storage tank 4.

The external heat conduction unit 50 includes: an exposed portion 50a exposed to the outside; an introduction portion 50b for introducing heat into the inside by connecting a through hole 55b formed in the frame 55 to the exposed portion 50 a; a contact portion 50c connected to the introduction portion 50b and contacting the reservoir 4.

The exposed portion 50a is disposed in a recess 55a formed in the outer surface of the frame 55. The recess 55a is formed in at least a part of the outer surface of the frame 55 (in the present embodiment, at the same position as the liquid cartridge 4 in the axial direction).

The exposed portion 50a is disposed on the bottom side of the outer edge of the recess 55 a. According to such a structure, if it is not intended, it is possible to suppress contact of another object with the exposed portion 50a, and to suppress heat from being accidentally transmitted from another object to the exposed portion 50 a.

According to the above configuration, the temperature of the liquid 10 in the housing portion (the liquid storage cartridge 4) can be adjusted by supplying heat from the outside to the housing portion (the liquid storage cartridge 4) through the outer surface of the frame 55 or by radiating heat from the housing portion (the liquid storage cartridge 4) to the outside.

For example, as an article for supplying heat from the outside, there are an article utilizing body temperature (human hand), an article utilizing chemical heat generation (portable pocket warmer), and the like.

Further, the heat conduction portion (the member heat conduction portion 40, the outer heat conduction portion 50) may include a cylindrical or box-shaped portion so as to surround the liquid storage case 4.

The heat insulating structure of the aerosol supply device 1 according to the first embodiment shown in fig. 2 is described as a structure including the vacuum region 45a, but the structure is not limited thereto. For example, the heat insulating structure of the aerosol supply device 1Y of the present modification is a urethane foam 55c that is attached by an adhesive so as to cover the inner surface of the frame 55. The urethane foam 55c can easily form a heat insulating structure. Further, a through hole is formed in a part of the urethane foam 55c, and the introduction portion 50b of the external heat conduction portion 50 is configured to be inserted therethrough.

The aerosol supply devices 1, 1X, and 1Y of the above embodiments and the respective modifications are explained as devices for atomizing by using SAW. However, the aerosol supply device of the present invention is not limited to the device for atomizing by using SAW, and may be a device for atomizing by using a heater such as an electric heater, an ultrasonic oscillator, or the like.

The aerosol supply device may be an aspirator for ejecting liquid, a diffuser for diffusing flavor, or the like, in addition to the electronic cigarette.

In the above-described embodiment, the liquid 10 is supplied from below to the piezoelectric element substrate 5a by way of example, but the present invention is not limited thereto, and the liquid 10 may be dropped from above to the piezoelectric element substrate 5 a.

In the above-described embodiment and modifications, the structure in which the apparatus main body 2 is constituted by the frame 45 and the lid 56 as separate members has been described, but the present invention is not limited to this, and may be constituted by an integrally formed structure.

The various components in the aerosol supply device of the present invention do not need to be present independently of each other. The present invention is not limited to the above embodiments, and various modifications and changes can be made without departing from the spirit and scope of the present invention.

Of course, the configurations shown in the above-described embodiment and the modifications may be combined. For example, the aerosol supply device may include all of the components, the heat conduction unit 40, the peltier element 48, and the external heat conduction unit 50, as the temperature adjustment unit.

This patent application claims priority based on japanese patent application having application date of 2019, 4/9 and application number of japanese patent application No. 2019-.

The above embodiment includes the following technical ideas.

(1) An aerosol supply device is characterized by comprising:

a containing section that contains a liquid;

an atomizing unit having a storage section for storing the liquid supplied from the storage section, and generating an aerosol by atomizing the liquid stored in the storage section;

and a temperature adjusting unit that adjusts the temperature of the liquid at any position from the accommodating unit to the storage unit.

(2) The aerosol provision device according to (1), which is an aerosol provision device that atomizes the liquid by vibration to thereby supply the aerosol, wherein,

the atomization unit is provided with:

a vibrating member that forms the aerosol by vibrating the liquid;

a vibration source that vibrates the vibration member by being supplied with electricity;

the aerosol supply device further includes a thermally conductive member thermally conductive section connected to the vibration member and the housing section,

the temperature adjustment unit includes the vibration member, the vibration source, and the member heat conduction unit.

(3) The aerosol provision device according to (1) or (2), which is an aerosol provision device that atomizes the liquid by vibration to thereby supply the aerosol, wherein,

the atomization unit is provided with:

a vibrating member that forms the aerosol by vibrating the liquid;

a vibration source that vibrates the vibration member by being supplied with electricity;

the aerosol supply device further includes a control unit for controlling the electric power supplied to the vibration source,

the control unit performs control as follows:

the electric power is set to a first electric power when the temperature of the liquid is a first temperature, to a second electric power larger than the first electric power when the temperature of the liquid is a second temperature lower than the first temperature, and to a third electric power smaller than the first electric power when the temperature of the liquid is a third temperature higher than the first temperature.

(4) The aerosol provision device according to (2) or (3), which is an aerosol provision device that atomizes the liquid by surface elastic waves to thereby supply the aerosol, wherein,

the vibration member is a piezoelectric element substrate having a piezoelectric element,

the vibration source is a comb-shaped electrode that generates surface elastic waves on the piezoelectric element substrate.

(5) The aerosol provision device according to any one of (1) to (4),

an insulating structure having a lower thermal conductivity than the housing portion is provided between the housing portion and the outside of the aerosol supply device.

(6) The aerosol provision device according to any one of (1) to (5),

the aerosol supply device further includes a frame that covers at least the housing portion so as to face the outside of the aerosol supply device,

the temperature adjustment unit includes an external heat conduction unit having thermal conductivity connecting the housing unit and an outer surface of the frame.

(7) The aerosol provision device according to any one of (1) to (6),

the temperature adjustment unit includes a cooling unit that absorbs heat at any position from the storage unit to the storage unit.

(8) The aerosol provision device according to any one of (1) to (7),

the temperature adjusting section includes a heating section that releases heat at any position from the accommodating section to the storage section.

(9) The aerosol provision device according to (7) or (8), which is an aerosol provision device that atomizes the liquid by surface elastic waves to thereby supply the aerosol, wherein,

the atomization unit is provided with:

a piezoelectric element substrate that has a piezoelectric element and forms the aerosol by vibrating the liquid;

a comb-shaped electrode that generates a surface acoustic wave on the piezoelectric element substrate by being supplied with power;

the cooling unit or the heating unit is disposed at a position where the piezoelectric element substrate is cooled or heated.

(10) The aerosol provision device according to any one of (1) to (9), wherein,

the temperature adjustment section includes a peltier element.

(11) The aerosol supply device according to any one of (1) to (10), further comprising:

a pump capable of supplying the liquid to the atomizing unit;

a control unit that controls power supplied to the pump;

a temperature sensor that detects a temperature around the housing portion;

the pump is a syringe pump capable of drawing back the liquid from the atomizing unit to the accommodating portion side,

the control unit controls the pump to draw the liquid from the atomizing unit to the containing unit side or push the liquid from the containing unit to the atomizing unit side when the temperature of the liquid detected by the temperature sensor is equal to or higher than a predetermined temperature or lower.

Description of the reference numerals

1. 1X, 1Y aerosol supply means;

2, a device body;

3, air tap;

3a discharge port;

4 liquid storage box (accommodating part);

4a body portion;

4b a base plate;

4c through holes;

4d sliding blocks;

5 an atomizing unit;

5a piezoelectric element substrate (substrate, vibrating member, temperature adjusting section);

5b a retention portion;

5c electrodes (vibration source, temperature adjusting part);

5d, through holes;

6 first flow path

6a tube portion;

7 a second flow path;

8a volatilization prevention part;

8a solenoid valve;

8b a duckbill valve;

9a pump;

9a motor;

9b, pressing a rod;

10 liquid;

11, aerosol;

12a control substrate;

12a control unit;

13 a power supply substrate;

14 batteries;

15 a power switch;

40 parts of heat conduction parts (temperature adjusting parts);

41 a thermostat (temperature adjusting section);

45a frame body;

45a vacuum region (insulation structure);

46 a cover portion;

48 Peltier elements (cooling unit, heating unit, temperature adjusting unit);

49 a temperature sensor;

50 an external heat conduction unit (temperature adjustment unit);

50a exposed part;

50b an introduction part;

50c contact portion;

a frame body 55;

55a is concave;

55b through holes;

55c urethane foam (heat insulating structure);

56a cover portion;

56a through holes.