WO2023286143A1

WO2023286143A1 - Aerosol generation system

Info

Publication number: WO2023286143A1
Application number: PCT/JP2021/026209
Authority: WO
Inventors: 泰弘小野; 玲二朗川崎; 寛手塚; 和俊芹田
Original assignee: 日本たばこ産業株式会社
Priority date: 2021-07-13
Filing date: 2021-07-13
Publication date: 2023-01-19

Abstract

[Problem] To provide a setup that makes it possible to achieve efficient aerosol generation in an induction heating–type inhalation device. [Solution] According to the present invention, an aerosol generation system comprises an accommodation part that has an internal space that can accommodate an aerosol generation article that contains an aerosol source, a solenoid-type induction coil that generates a variable magnetic field when alternating current is applied thereto, and a susceptor that generates heat when penetrated by the variable magnetic field. The accommodation part has an opening that allows the internal space to communicate with the outside, and the aerosol generation article is inserted into the internal space through the opening. The susceptor has a first portion and a second portion. The first portion is arranged to protrude into the internal space from a bottom part of the accommodation part that is on the opposite side from the opening. The second portion is the portion that is not the first portion and is arranged inside the induction coil.

Description

Aerosol generation system

The present invention relates to an aerosol generation system.

Inhalation devices, such as electronic cigarettes and nebulizers, that produce substances that are inhaled by the user are widespread. For example, the suction device uses a base material including an aerosol source for generating an aerosol and a flavor source for imparting a flavor component to the generated aerosol to generate an aerosol imparted with a flavor component. A user can enjoy the flavor by inhaling the flavor component-applied aerosol generated by the suction device. The action of the user inhaling the aerosol is hereinafter also referred to as puffing or puffing action.

Until now, suction devices that use external heat sources such as heating blades have been the mainstream. However, in recent years, attention has been focused on an induction heating suction device that generates an aerosol by induction heating a susceptor using an electromagnetic induction source configured as a coil. For example, Patent Literature 1 below discloses a technique in which a blade-shaped susceptor is inserted into a substrate, and the susceptor is induction-heated by a coil arranged to surround the substrate and the susceptor to generate an aerosol. .

WO2018/220558

However, with the technique described in Patent Document 1, the magnetic field generated by the coil leaks out without penetrating into the susceptor, making it difficult to efficiently raise the temperature of the susceptor.

Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to provide a mechanism that enables efficient generation of aerosol in an induction heating suction device. .

In order to solve the above problems, according to one aspect of the present invention, there is provided a container capable of containing an aerosol-generating article containing an aerosol source in an internal space, and a solenoid that generates a varying magnetic field when an alternating current is applied. and a susceptor that generates heat when the fluctuating magnetic field penetrates. The susceptor contains the aerosol-generating article, and the susceptor is composed of a first portion arranged to protrude into the internal space from a bottom portion of the containing portion opposite to the opening, and a portion other than the first portion. and a second portion disposed inside the induction coil.

The first portion and the second portion may be formed in a columnar shape, and central axes of the first portion and the second portion may coincide.

The volume of the second portion may be larger than the volume of the first portion.

A cross-sectional area of the second portion in a direction orthogonal to a direction in which the aerosol-generating article is inserted may be greater than a cross-sectional area of at least a portion of the first portion.

The first portion may have a hollow structure.

The first portion may be thinner than the second portion.

The length of the second portion in the direction in which the aerosol-generating article is inserted may be longer than the length of the first portion.

The length of the induction coil in the direction in which the aerosol-generating article is inserted may be longer than the length of the first portion.

The susceptor has a third portion located between the first portion and the second portion and extending in a direction perpendicular to the direction in which the aerosol-generating article is inserted, the third portion being positioned to receive the aerosol-generating article. You may form the surface exposed to the said internal space among the said bottom parts of a part.

The susceptor has a fourth portion located between the second portion and the third portion and extending in a direction perpendicular to the direction in which the aerosol-generating article is inserted, the volume of the fourth portion being: It may be larger than the volume of the third portion.

The susceptor may have a fifth portion extending in a direction in which the aerosol-generating article is inserted outside the second portion, and the induction coil may be arranged inside the fifth portion.

The susceptor may have a sixth portion facing the fourth portion and extending in a direction perpendicular to the direction in which the aerosol-generating article is inserted.

The aerosol generating system may include a heat insulating portion arranged between the susceptor and other components than the induction coil.

The heat insulating part may have at least one of an airgel heat insulating material, an air heat insulating layer, or a vacuum heat insulating member.

The first portion may be inserted inside the aerosol-generating article inserted in the internal space.

The aerosol-generating system may include the aerosol-generating article.

As described above, according to the present invention, a mechanism is provided that enables efficient aerosol generation in an induction heating suction device.

It is a schematic diagram which shows the structural example of a suction device typically. It is a perspective view of the induction heating part which concerns on this embodiment. It is a sectional view of an induction heating part concerning this embodiment. It is a sectional view of a portion in which an induction heating part is arranged in a suction device concerning this embodiment. It is a perspective view of the induction heating part which concerns on a modification. It is a sectional view of an induction heating part concerning a modification. It is sectional drawing of the part in which the induction heating part in the suction device which concerns on a modification is arrange|positioned.

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the present specification and drawings, constituent elements having substantially the same functional configuration are denoted by the same reference numerals, thereby omitting redundant description.

<1. Configuration example of suction device>
The suction device according to this configuration example generates an aerosol by heating a substrate including an aerosol source from inside the substrate. This configuration example will be described below with reference to FIG.

FIG. 1 is a schematic diagram schematically showing a configuration example of a suction device. As shown in FIG. 1, the suction device 100 according to this configuration example includes a power supply unit 111, a sensor unit 112, a notification unit 113, a storage unit 114, a communication unit 115, a control unit 116, an induction heating unit 121, and a storage unit 140. including. The suction is performed by the user while the stick-shaped base material 150 is accommodated in the accommodation section 140 . Each component will be described in order below.

The power supply unit 111 accumulates power. The power supply unit 111 supplies electric power to each component of the suction device 100 . The power supply unit 111 may be composed of, for example, a rechargeable battery such as a lithium ion secondary battery. The power supply unit 111 may be charged by being connected to an external power supply via a USB (Universal Serial Bus) cable or the like. Also, the power supply unit 111 may be charged in a state of being disconnected from the device on the power transmission side by wireless power transmission technology. Alternatively, only the power supply unit 111 may be detached from the suction device 100 or may be replaced with a new power supply unit 111 .

The sensor unit 112 detects various information regarding the suction device 100 . The sensor unit 112 then outputs the detected information to the control unit 116 . As an example, the sensor unit 112 is configured by a pressure sensor such as a condenser microphone, a flow rate sensor, or a temperature sensor. When the sensor unit 112 detects a numerical value associated with the user's suction, the sensor unit 112 outputs information indicating that the user has performed suction to the control unit 116 . As another example, the sensor unit 112 is configured by an input device, such as a button or switch, that receives information input from the user. Among other things, sensor unit 112 may include a button for instructing start/stop of aerosol generation. The sensor unit 112 then outputs the information input by the user to the control unit 116 . As another example, the sensor section 112 is configured by a temperature sensor that detects the temperature of the induction heating section 121 . Such a temperature sensor detects the temperature of the induction heating part 121 based on the electrical resistance value of the conductive track of the induction heating part 121, for example. The sensor unit 112 may detect the temperature of the stick-shaped substrate 150 housed in the housing unit 140 based on the temperature of the induction heating unit 121 .

The notification unit 113 notifies the user of information. As an example, the notification unit 113 is configured by a light-emitting device such as an LED (Light Emitting Diode). In this case, the notification unit 113 emits light in different light emission patterns when the power supply unit 111 is in a charging required state, when the power supply unit 111 is being charged, when an abnormality occurs in the suction device 100, and the like. . The light emission pattern here is a concept including color, timing of lighting/lighting out, and the like. The notification unit 113 may be configured by a display device that displays an image, a sound output device that outputs sound, a vibration device that vibrates, or the like, together with or instead of the light emitting device. In addition, the notification unit 113 may notify information indicating that suction by the user has become possible. Information indicating that the suction by the user is enabled is notified when the temperature of the stick-shaped base material 150 heated by the induction heating unit 121 reaches a predetermined temperature.

The storage unit 114 stores various information for the operation of the suction device 100 . The storage unit 114 is configured by, for example, a non-volatile storage medium such as flash memory. An example of the information stored in the storage unit 114 is information regarding the OS (Operating System) of the suction device 100, such as control details of various components by the control unit 116. FIG. Another example of the information stored in the storage unit 114 is information related to suction by the user, such as the number of times of suction, suction time, total suction time, and the like.

The communication unit 115 is a communication interface for transmitting and receiving information between the suction device 100 and other devices. The communication unit 115 performs communication conforming to any wired or wireless communication standard. As such a communication standard, for example, wireless LAN (Local Area Network), wired LAN, Wi-Fi (registered trademark), Bluetooth (registered trademark), or the like can be adopted. As an example, the communication unit 115 transmits information about suction by the user to the smartphone so that the smartphone displays information about suction by the user. As another example, the communication unit 115 receives new OS information from the server in order to update the OS information stored in the storage unit 114 .

The control unit 116 functions as an arithmetic processing device and a control device, and controls the general operations within the suction device 100 according to various programs. The control unit 116 is realized by an electronic circuit such as a CPU (Central Processing Unit) and a microprocessor. In addition, the control unit 116 may include a ROM (Read Only Memory) for storing programs to be used, calculation parameters, etc., and a RAM (Random Access Memory) for temporarily storing parameters, etc. that change as appropriate. The suction device 100 executes various processes under the control of the controller 116 . Power supply from power supply unit 111 to other components, charging of power supply unit 111, detection of information by sensor unit 112, notification of information by notification unit 113, storage and reading of information by storage unit 114, and communication unit 115 Transmission and reception of information is an example of processing controlled by the control unit 116 . Other processes executed by the suction device 100, such as information input to each component and processing based on information output from each component, are also controlled by the control unit 116. FIG.

The housing part 140 has an internal space 141 and holds the stick-shaped base material 150 while housing a part of the stick-shaped base material 150 in the internal space 141 . The accommodating portion 140 has an opening 142 that communicates the internal space 141 with the outside, and accommodates the stick-shaped substrate 150 inserted into the internal space 141 through the opening 142 . For example, the housing portion 140 is a cylindrical body having an opening 142 and a bottom portion 143 as a bottom surface, and defines a columnar internal space 141 . The accommodating part 140 is configured such that the inner diameter is smaller than the outer diameter of the stick-shaped base material 150 at least in part in the height direction of the cylindrical body, and the stick-shaped base material 150 inserted into the inner space 141 is held in the container. The stick-shaped substrate 150 can be held by pressing from the outer periphery. The containment portion 140 also functions to define a flow path for air through the stick-shaped substrate 150 . An air inlet hole, which is an inlet for air into the flow path, is arranged, for example, in the bottom portion 143 . On the other hand, the air outflow hole, which is the exit of air from such a channel, is the opening 142 .

The stick-shaped base material 150 is a stick-shaped member. The stick-type substrate 150 includes a substrate portion 151 and a mouthpiece portion 152 .

The base material portion 151 includes an aerosol source. The aerosol source is atomized by heating to produce an aerosol. The aerosol source may be tobacco-derived, such as, for example, a processed product of cut tobacco or tobacco material formed into granules, sheets, or powder. Aerosol sources may also include non-tobacco sources made from plants other than tobacco, such as mints and herbs. By way of example, the aerosol source may contain perfume ingredients such as menthol. If the inhalation device 100 is a medical inhaler, the aerosol source may contain a medicament for inhalation by the patient. The aerosol source is not limited to solids, and may be, for example, polyhydric alcohols such as glycerin and propylene glycol, and liquids such as water. At least a portion of the base material portion 151 is accommodated in the internal space 141 of the accommodation portion 140 while the stick-shaped substrate 150 is held in the accommodation portion 140.

The mouthpiece 152 is a member held by the user when inhaling. At least part of the mouthpiece 152 protrudes from the opening 142 when the stick-shaped base material 150 is held in the housing 140 . Then, when the user holds the mouthpiece 152 protruding from the opening 142 in his/her mouth and sucks, air flows into the housing 140 through an air inlet hole (not shown). The air that has flowed in passes through the internal space 141 of the housing portion 140 , that is, through the base portion 151 and reaches the inside of the user's mouth together with the aerosol generated from the base portion 151 .

The induction heating unit 121 heats the aerosol source by induction heating to atomize the aerosol source and generate an aerosol. Induction heating is a process of causing a susceptor to generate heat by penetrating a varying magnetic field into the susceptor. For example, the induction heating part 121 has a sharp tip and is arranged so as to protrude from the bottom part 143 of the housing part 140 into the internal space 141 of the housing part 140 . Therefore, when the stick-shaped substrate 150 is inserted into the housing portion 140, the portion of the induction heating portion 121 that protrudes into the internal space 141 is pierced into the substrate portion 151 of the stick-shaped substrate 150 so that the stick-shaped substrate 150 is inserted. It is inserted inside the substrate 150 . Then, when the induction heating part 121 generates heat, the aerosol source contained in the stick-shaped substrate 150 is heated from inside the stick-shaped substrate 150 and atomized to generate an aerosol. The induction heating unit 121 includes a susceptor 10 and an induction coil 20, as will be described later in detail with reference to FIGS. 2-4. When an alternating current is supplied to the induction coil 20, the susceptor 10 is induction-heated by a varying magnetic field (more specifically, an alternating magnetic field) generated from the induction coil 20 to generate heat. As an example, power may be supplied and an aerosol may be generated when the sensor unit 112 detects that a predetermined user input has been performed. When the temperature of the stick-shaped substrate 150 heated by the induction heating unit 121 reaches a predetermined temperature, the suction by the user becomes possible. After that, when the sensor unit 112 detects that a predetermined user input has been performed, the power supply may be stopped. As another example, power may be supplied and aerosol may be generated during a period in which the sensor unit 112 detects that the user has inhaled.

A stick-type substrate 150 is an example of an aerosol-generating article containing an aerosol source. The suction device 100 and stick-shaped substrate 150 cooperate to generate an aerosol that is inhaled by the user. As such, the combination of suction device 100 and stick-type substrate 150 may be viewed as an aerosol generating system.

<2. Detailed Configuration of Induction Heating Unit>
FIG. 2 is a perspective view of the induction heating section 121 according to this embodiment. FIG. 3 is a cross-sectional view of the induction heating section 121 according to this embodiment. FIG. 4 is a cross-sectional view of a portion where the induction heating section 121 is arranged in the suction device 100 according to this embodiment.

As shown in FIGS. 2 and 3, the induction heating section 121 includes a susceptor 10 and an induction coil 20. Then, as shown in FIG. 4 , the induction heating part 121 is arranged so that one end protrudes into the internal space 141 of the accommodating part 140 .

In these drawings, the direction in which the stick-shaped base material 150 is inserted into the induction heating unit 121 is also referred to as the downward direction. The direction in which the stick-shaped substrate 150 is removed from the induction heating unit 121 is also referred to as an upward direction. In the induction heating part 121, the upward end is also called a front end, and the downward end is also called a rear end. The vertical direction corresponds to the longitudinal direction of the induction heating section 121 , the housing section 140 and the internal space 141 .

The direction orthogonal to the longitudinal direction is also called the transverse direction. Among the transverse directions, the direction approaching the center of the induction heating unit 121 is also referred to as the inner side. On the other hand, among the transverse directions, the direction away from the center of the induction heating section 121 is also called the outside.

Each component of the induction heating unit 121 will be described in detail below.

The induction coil 20 is a solenoid type coil. The induction coil 20 generates a varying magnetic field when alternating current is applied. The induction coil 20 is arranged so as to wind around the susceptor 10 . When an alternating current is applied to the induction coil 20, as shown in FIG. 3, a varying magnetic field 90 is generated having a direction that circulates between the space inside and outside the induction coil 20. FIG. Therefore, the fluctuating magnetic field 90 generated from the induction coil 20 enters the susceptor 10 arranged in the space inside the induction coil 20 and heats the susceptor 10 by induction.

Here, the power supply unit 111 may be a DC (Direct Current) power supply. In that case, the power supply unit 111 supplies AC power to the induction coil 20 via a DC/AC (Alternate Current) inverter. Thereby, the induction coil 20 can generate an alternating magnetic field to raise the temperature of the susceptor 10 .

The susceptor 10 is a member that generates heat when the fluctuating magnetic field 90 enters. The susceptor 10 is made of a conductive material. When the fluctuating magnetic field 90 penetrates the susceptor 10 made of a conductive material, an eddy current is induced and the susceptor 10 is heated according to the electrical resistance of the susceptor 10 . Such a heating mechanism is also called resistive heating. Furthermore, it is desirable that the susceptor 10 be made of a ferromagnetic material. This is because a combination of resistance heating and magnetic hysteresis heating can increase the heating efficiency. Magnetic hysteresis heating is the process of heating a magnetic material as the magnetic dipoles reorient in response to the penetration of a varying magnetic field 90 . Induction heating in the present invention includes at least resistance heating and may include magnetic hysteresis heating. The susceptor 10 is made of one or more materials selected from a group of materials including, for example, aluminum, iron, nickel, cobalt, conductive carbon, copper, and stainless steel.

As shown in FIG. 3, the susceptor 10 has a first portion 11 and a second portion 12. As shown in FIG. The first portion 11 is a portion of the susceptor 10 that is arranged to protrude into the internal space 141 from the bottom portion 143 on the opposite side of the opening 142 of the accommodating portion 140 . The first part 11 is inserted inside the stick-shaped substrate 150 inserted into the internal space 141 . The second portion 12 is a portion of the susceptor 10 other than the first portion 11 and arranged inside the induction coil 20 . That is, the induction coil 20 is arranged so as to surround the second portion 12 . According to such a configuration, the second portion 12 arranged inside the induction coil 20 can be efficiently induction-heated. Here, for convenience, the susceptor 10 is divided into the first portion 11 and the second portion 12, but these may be integrally formed and at least thermally connected. Note that being thermally connected means that heat transfer is possible. Therefore, the temperature of the first portion 11 rises due to heat transfer from the second portion 12 . Furthermore, even if the fluctuating magnetic field 90 generated from the induction coil 20 is not received by the second portion 12 and leaks out, if the first portion 11 receives the leaked magnetic field, the first portion 11 will induce heated. Thus, the suction device 100 according to the present embodiment can fully utilize the magnetic field generated by the induction coil 20 to raise the temperature of the first portion 11 and generate aerosol. In addition, compared to an example in which the induction coil 20 is arranged outside the housing portion 140, the thickness in the transverse direction can be reduced, so the size of the suction device 100 can be easily reduced.

　As shown in Figures 2 and 3, the first part 11 and the second part 12 are formed in a columnar shape, and the central axes of the first part 11 and the second part 12 are aligned. For example, the susceptor 10 is formed as a single metal cylinder. With such a configuration, it is possible to increase the strength of the susceptor 10 and prevent the susceptor 10 from breaking when the stick-shaped substrate 150 is inserted into the internal space 141 .

A member that prevents heat conduction is desirably arranged between the susceptor 10 and the induction coil 20 . With such a configuration, it is possible to prevent damage to the induction coil 20 due to heat transfer from the susceptor 10 . Additionally, an electrical insulator is preferably placed between the susceptor 10 and the induction coil 20 to avoid shorting the induction coil 20 .

Here, the volume of the second portion 12 is larger than the volume of the first portion 11. According to such a configuration, most of the fluctuating magnetic field 90 generated from the induction coil 20 can be received by the second portion 12, and the temperature of the second portion 12 can be efficiently raised. Furthermore, it becomes possible to improve the rate of temperature rise of the first portion 11 based on the heat transfer from the second portion 12 to the first portion 11 and to generate the aerosol more efficiently.

As an example, the cross-sectional area of the second portion 12 in the transverse direction may be larger than at least part of the cross-sectional area of the first portion 11 . For example, as shown in FIG. 3, the first portion 11 may have a hollow structure. In addition, although the first portion 11 and the second portion 12 have the same thickness (that is, diameter) in this embodiment, the first portion 11 is thinner than the second portion 12. good too. With such a configuration, the volume of the second portion 12 can be made larger than the volume of the first portion 11 to efficiently generate aerosol.

As another example, the length of the second portion 12 in the longitudinal direction may be longer than the length of the first portion 11, as shown in FIG. In other words, the length of the induction coil 20 in the longitudinal direction may be longer than the length of the first portion 11 . With such a configuration, the volume of the second portion 12 can be made larger than the volume of the first portion 11 to efficiently generate aerosol.

As shown in FIG. 4, the housing portion 140 has a holding portion 30, an interior member 40 and an exterior member 50. The exterior member 50 is a tubular member such as a cylinder. The exterior member 50 may constitute the outermost shell of the suction device 100 . The interior member 40 is a member that forms an inner wall (in particular, a side wall) of the housing portion 140 . The holding portion 30 constitutes a bottom portion 143 of the housing portion 140 .

The holding part 30 is a member that holds the induction heating part 121 . As shown in FIG. 4 , the holding portion 30 holds the induction heating portion 121 so that the first portion 11 protrudes from the bottom portion 143 of the housing portion 140 into the internal space 141 . More specifically, a hole 31 is provided at the center of the holding portion 30 in the transverse direction to vertically penetrate the holding portion 30 . The induction heating part 121 is positioned such that the first part 11 is exposed to the internal space 141 while passing through the hole 31 . According to this configuration, when the stick-shaped base material 150 is inserted into the internal space 141 through the opening 142, the tip of the induction heating part 121 pierces the stick-shaped base material 150, and the inside of the stick-shaped base material 150 is induction-heated. The first part 11 of part 121 is inserted. Therefore, by efficiently raising the temperature of the first portion 11, it is possible to efficiently generate an aerosol.

The holding part 30 is made of a material having high heat resistance. For example, the holding unit 30 is made of PEEK (Poly Ether Ether Ketone). With such a configuration, the holding part 30 can continue to hold the induction heating part 121 even when the induction heating part 121 generates high heat.

<3. Variation>
FIG. 5 is a perspective view of an induction heating section 121 according to a modification. FIG. 6 is a cross-sectional view of an induction heating unit 121 according to a modification. FIG. 7 is a cross-sectional view of a portion of the suction device 100 according to the modification, where the induction heating section 121 is arranged.

As shown in FIGS. 5 and 6, the induction heating section 121 includes a susceptor 10 and an induction coil 20. The induction coil 20 is as described in the above embodiment. The susceptor 10 according to this modification includes a third portion 13, a fourth portion 14, a fifth portion 15, and a sixth portion 16 in addition to the first portion 11 and the second portion 12 described in the above embodiment. Here, for the sake of convenience, the susceptor 10 is divided into a first portion 11, a second portion 12, a third portion 13, a fourth portion 14, a fifth portion 15 and a sixth portion 16, which are integrated together. may be formed and at least thermally connected.

The third portion 13 is a member located between the first portion 11 and the second portion 12 and extending in the transverse direction. The third portion 13 forms a surface of the bottom portion 143 that is exposed to the internal space 141 . For example, the third portion 13 is formed in a thin columnar shape with a larger diameter than each of the first portion 11 and the second portion 12 . With such a configuration, as shown in FIG. 6, the third portion 13 receives the fluctuating magnetic field 90 that has leaked out without being received by the second portion 12, and can be induction-heated. The third portion 13 contacts the tip of the stick-shaped substrate 150 inserted into the internal space 141 . Therefore, the third portion 13 can heat the stick-shaped substrate 150 from the tip. Also, the third portion 13 is thermally connected to the first portion 11 . Therefore, the first portion 11 can be heated by heat transfer from the third portion 13 and heat the stick-shaped base material 150 from the inside. As described above, the suction device 100 according to the present modification can heat the stick-shaped base material 150 not only by the first portion 11 but also by the third portion 13, so that efficient heating is possible.

The fourth portion 14 is a member positioned between the second portion 12 and the third portion 13 and extending in the transverse direction. The fourth portion 14 forms a surface of the bottom portion 143 opposite to the internal space 141 . For example, the fourth portion 14 is formed in a thin columnar shape with the same diameter as the third portion 13 . With such a configuration, as shown in FIG. 6, the fourth portion 14 receives the leaked fluctuating magnetic field 90 without being received by the second portion 12, and can be induction-heated. The fourth portion 14 is thermally connected to the third portion 13 . Therefore, as the temperature of the fourth portion 14 rises, the temperatures of the first portion 11 and the third portion 13 can be raised. Also, the fourth portion 14 is thermally connected to the second portion 12 . Therefore, the temperature of the fourth portion 14 rises as the temperature of the second portion 12 rises, and as a result, the temperatures of the first portion 11 and the third portion 13 can rise.

Here, the volume of the fourth portion 14 is larger than the volume of the third portion 13. As an example, the cross-sectional area of the fourth portion 14 in the transverse direction may be greater than at least part of the cross-sectional area of the third portion 13 . For example, as shown in FIG. 6, the third portion 13 may have a hollow structure. According to such a configuration, it is possible to improve the rate of temperature increase of the third portion 13 based on heat transfer from the fourth portion 14 to the third portion 13, and to generate aerosol more efficiently.

The fifth portion 15 is a member extending downward outside the second portion 12 . For example, the fifth portion 15 is formed in a cylindrical shape that is open at its upper and lower ends. The fifth portion 15 is connected at its upper end to the side surfaces of the third portion 13 and the fourth portion 14 and is arranged so as to be separated from the second portion 12 . On the other hand, the induction coil 20 is arranged inside the fifth portion 15 . With such a configuration, as shown in FIG. 6, the fifth portion 15 can receive the fluctuating magnetic field 90 that has leaked out without being received by the second portion 12 . The fifth portion 15 is thermally connected to the third portion 13 and the fourth portion 14 . Therefore, as the temperature of the fifth portion 15 rises, the temperatures of the first portion 11 and the third portion 13 can be raised.

The sixth portion 16 is a member that faces the fourth portion 14 and extends in the transverse direction. For example, the sixth portion 16 is formed to protrude inward from the lower end of the fifth portion 15 . With such a configuration, as shown in FIG. 6, the sixth portion 16 can receive the fluctuating magnetic field 90 that has leaked out without being received by the second portion 12 . The sixth portion 16 is thermally connected with the fifth portion 15 . Therefore, as the temperature of the sixth portion 16 rises, the temperatures of the first portion 11 and the third portion 13 can be raised.

A heat insulator 60 is arranged between the susceptor 10 and components other than the induction coil 20 . Specifically, the heat insulating portion 60 is arranged between the susceptor 10 and the exterior member 50 . That is, the heat insulating portion 60 is arranged so as to cover the outer surface, upper surface, and lower surface of the fifth portion 15 . The heat insulator 60 is a member that reduces heat transfer. For example, the heat insulating part 60 has at least one of an airgel heat insulating material, an air heat insulating layer, or a vacuum heat insulating member. With such a configuration, it is possible to prevent heat transfer from the susceptor 10 to other components of the suction device 100, thereby preventing the occurrence of various problems caused by heat.

As shown in FIG. 7 , the housing portion 140 is formed by the interior member 40 , the exterior member 50 , and the bottom portion 143 composed of the third portion 13 and the fourth portion 14 . The exterior member 50 according to this modification functions as a holding portion that holds the induction heating portion 121 so that the first portion 11 protrudes from the bottom portion 143 of the housing portion 140 into the internal space 141 . Specifically, the induction heating part 121 and the heat insulating part 60 are fitted into a concave portion formed by hollowing out a part of the inner wall of the cylindrical exterior member 50 . Thus, the exterior member 50 holds the induction heating section 121 via the heat insulating section 60 . With such a configuration, the exterior member 50 can continue to hold the induction heating section 121 even when the induction heating section 121 generates high heat.

<4. Supplement>
Although the preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, the present invention is not limited to such examples. It is clear that a person having ordinary knowledge in the technical field to which the present invention belongs can conceive of various modifications or modifications within the scope of the technical idea described in the claims. It is understood that these also belong to the technical scope of the present invention.

For example, in the above embodiment, an example in which the housing portion 140 is configured in a cylindrical shape has been described, but the present invention is not limited to such an example. The cross-sectional shape of the housing portion 140 may be elliptical or polygonal.

For example, in the above modified example, the susceptor 10 has a fourth portion 14, a fifth portion 15 and a sixth portion 16 in addition to the first portion 11, the second portion 12 and the third portion 13. Although described, the invention is not limited to such examples. As an example, the susceptor 10 may have only the fourth portion 14 or only the fifth portion 15 in addition to the first portion 11, the second portion 12 and the third portion 13. . As another example, the susceptor 10 may have a fourth portion 14 and a fifth portion 15 in addition to the first portion 11, the second portion 12 and the third portion 13, or the fifth portion 15 and the third portion. It may have six portions 16 .

The following configuration also belongs to the technical scope of the present invention.
(1)
a container capable of containing an aerosol-generating article containing an aerosol source in an interior space;
a solenoid-type induction coil that generates a varying magnetic field when alternating current is applied;
a susceptor that generates heat when the fluctuating magnetic field penetrates;
with
The storage unit has an opening that communicates the internal space with the outside, and stores the aerosol-generating article inserted into the internal space through the opening;
The susceptor includes a first portion disposed so as to protrude into the internal space from a bottom portion of the accommodating portion opposite to the opening, and a portion other than the first portion that extends inside the induction coil. a second portion disposed on the
Aerosol generation system.
(2)
The first portion and the second portion are formed in a columnar shape,
central axes of the first portion and the second portion are aligned;
The aerosol generating system according to (1) above.
(3)
the volume of the second portion is greater than the volume of the first portion;
The aerosol generating system according to (1) or (2) above.
(4)
the cross-sectional area of the second portion in a direction perpendicular to the direction in which the aerosol-generating article is inserted is greater than the cross-sectional area of at least a portion of the first portion;
The aerosol generating system according to (3) above.
(5)
The first portion is a hollow structure,
The aerosol generating system according to (4) above.
(6)
the first portion is thinner than the second portion;
The aerosol generating system according to (4) or (5) above.
(7)
the length of the second portion in the direction in which the aerosol-generating article is inserted is greater than the length of the first portion;
The aerosol generating system according to any one of (3) to (6) above.
(8)
the length of the induction coil in the direction in which the aerosol-generating article is inserted is greater than the length of the first portion;
The aerosol generating system according to any one of (3) to (7) above.
(9)
the susceptor has a third portion located between the first portion and the second portion and extending in a direction perpendicular to the direction in which the aerosol-generating article is inserted;
The third portion forms a surface of the bottom portion of the housing portion that is exposed to the internal space,
The aerosol generating system according to any one of (1) to (8) above.
(10)
the susceptor has a fourth portion located between the second portion and the third portion and extending in a direction perpendicular to the direction in which the aerosol-generating article is inserted;
the volume of the fourth portion is greater than the volume of the third portion;
The aerosol generating system according to (9) above.
(11)
the susceptor has a fifth portion outside the second portion and extending in a direction in which the aerosol-generating article is inserted;
The induction coil is positioned inside the fifth portion,
The aerosol generating system according to (10) above.
(12)
The susceptor has a sixth portion opposite the fourth portion and extending in a direction orthogonal to the direction in which the aerosol-generating article is inserted.
The aerosol generating system according to (11) above.
(13)
The aerosol-generating system comprises a heat insulator disposed between the susceptor and other components other than the induction coil.
The aerosol generating system according to any one of (1) to (12) above.
(14)
The heat insulating part has at least one of an airgel heat insulating material, an air heat insulating layer, or a vacuum heat insulating member,
The aerosol generating system according to (13) above.
(15)
the first portion is inserted inside the aerosol-generating article inserted into the interior space;
The aerosol generating system according to any one of (1) to (14) above.
(16)
wherein the aerosol-generating system comprises the aerosol-generating article;
The aerosol generating system according to any one of (1) to (15) above.

REFERENCE SIGNS LIST 100 suction device 111 power supply unit 112 sensor unit 113 notification unit 114 storage unit 115 communication unit 116 control unit 121 induction heating unit 140 housing unit 141 internal space 142 opening 143 bottom unit 150 stick-shaped substrate 151 substrate unit 152 mouthpiece unit 10 susceptor 11 1st part 12 2nd part 13 3rd part 14 4th part 15 5th part 16 6th part 20 induction coil 30 holding part 40 interior member 50 exterior member 60 heat insulation part 90 variable magnetic field

Claims

a container capable of containing an aerosol-generating article containing an aerosol source in an interior space;
a solenoid-type induction coil that generates a varying magnetic field when alternating current is applied;
a susceptor that generates heat when the fluctuating magnetic field penetrates;
with
The storage unit has an opening that communicates the internal space with the outside, and stores the aerosol-generating article inserted into the internal space through the opening;
The susceptor includes a first portion disposed so as to protrude into the internal space from a bottom portion of the accommodating portion opposite to the opening, and a portion other than the first portion that extends inside the induction coil. a second portion disposed on the
Aerosol generation system.
The first portion and the second portion are formed in a columnar shape,
central axes of the first portion and the second portion are aligned;
2. The aerosol generating system of claim 1.
the volume of the second portion is greater than the volume of the first portion;
3. An aerosol generating system according to claim 1 or 2.
the cross-sectional area of the second portion in a direction perpendicular to the direction in which the aerosol-generating article is inserted is greater than the cross-sectional area of at least a portion of the first portion;
4. The aerosol generating system of claim 3.
The first portion is a hollow structure,
5. The aerosol generating system of claim 4.
the first portion is thinner than the second portion;
6. An aerosol generating system according to claim 4 or 5.
the length of the second portion in the direction in which the aerosol-generating article is inserted is greater than the length of the first portion;
Aerosol generating system according to any one of claims 3-6.
the length of the induction coil in the direction in which the aerosol-generating article is inserted is greater than the length of the first portion;
Aerosol generating system according to any one of claims 3-7.
the susceptor has a third portion located between the first portion and the second portion and extending in a direction perpendicular to the direction in which the aerosol-generating article is inserted;
The third portion forms a surface of the bottom portion of the housing portion that is exposed to the internal space,
Aerosol generating system according to any one of claims 1-8.
the susceptor has a fourth portion located between the second portion and the third portion and extending in a direction perpendicular to the direction in which the aerosol-generating article is inserted;
the volume of the fourth portion is greater than the volume of the third portion;
10. The aerosol generating system of claim 9.
the susceptor has a fifth portion outside the second portion and extending in a direction in which the aerosol-generating article is inserted;
The induction coil is positioned inside the fifth portion,
11. The aerosol generating system of claim 10.
The susceptor has a sixth portion opposite the fourth portion and extending in a direction orthogonal to the direction in which the aerosol-generating article is inserted.
12. The aerosol generating system of claim 11.
The aerosol-generating system comprises a heat insulator disposed between the susceptor and other components other than the induction coil.
Aerosol generating system according to any one of claims 1-12.
The heat insulating part has at least one of an airgel heat insulating material, an air heat insulating layer, or a vacuum heat insulating member,
14. The aerosol generating system of claim 13.
the first portion is inserted inside the aerosol-generating article inserted into the interior space;
Aerosol generating system according to any one of claims 1-14.
wherein the aerosol-generating system comprises the aerosol-generating article;
Aerosol generating system according to any one of claims 1-15.