Aerosol generating device

Abstract

A non-combustion-type inhalation implement (100) comprises: a power supply (10); a conversion circuit (135) for converting electric power supplied from the power supply (10) to high-frequency electric power; a cavity (131) into which a stick (500) that includes an aerosol source can be inserted via an opening (111); a magnetic body (132); an induction coil (133) wound around the magnetic body (132), the high-frequency electric power being supplied to the induction coil (133); and a susceptor (134) in which flows an induction current generated by the magnetic field of the magnetic body (132) and the induction coil (133), the susceptor (134) being provided inside the cavity (131). The susceptor (134) is disposed on the opening (111) side as viewed from the induction coil (133).

Description

Technical Field

[0001] The present invention relates to an aerosol generating device that generates an aerosol by heating a stick.

Background Art

[0002] Aerosol generating devices using induction heating with excellent heating efficiency are known (Patent Documents 1-5). Since induction heating requires more electrical components than resistance heating, the size of the aerosol generating device tends to be large. The aerosol generating devices described in Patent Documents 1 and 2 generate an aerosol by heating a liquid, and do not heat a stick including an aerosol source. On the other hand, the aerosol generating devices described in Patent Documents 3 to 5 heat a stick including an aerosol source.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Patent Document 3

Patent Document 4

Patent Document 5

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the aerosol generation devices described in Patent Documents 3 to 5, since the susceptor and the induction coil wound around the ferromagnetic material are arranged in the radial direction, the aerosol generation device becomes large in the radial direction. Since many users of aerosol generation devices grip the aerosol generation device in the radial direction, such an increase in size in the radial direction may reduce the usability for the user.

[0005] The present invention provides an aerosol generation device capable of heating a stick throughout while suppressing an increase in thickness in the radial direction.

Means for Solving the Problems

[0006] The aerosol generation device of the present invention includes a power source, a conversion circuit that converts the electric power supplied from the power source into high-frequency power, a cavity into which a stick including an aerosol source can be inserted and removed through an opening, a magnetic body, an induction coil wound around the magnetic body and supplied with the high-frequency power, a susceptor provided in the cavity through which an induced current generated by the magnetic field of the induction coil and the magnetic body flows, and The induction coil and the susceptor are arranged side by side in a row in the insertion and extraction direction of the stick. The susceptor is arranged on the opening side when viewed from the induction coil.

Advantages of the Invention

[0007] According to the present invention, it is possible to heat the stick throughout while suppressing an increase in thickness in the radial direction of the aerosol generation device.

Brief Description of the Drawings

[0008]

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Mode for Carrying Out the Invention

[0009] (Aerosol Generation Device) Hereinafter, as an example of an aerosol generation device in the present invention, a non-combustion type suction device will be described with reference to the drawings. The non-combustion type suction device 100 of the present embodiment (hereinafter, also simply referred to as "suction device 100") generates an aerosol by heating a stick 500.

[0010] FIG. 1 is a perspective view showing an overall configuration of the suction device 100. FIG. 2 is a perspective view of the suction device 100 showing a state in which the stick 500 is attached. In the following description, for convenience, three directions orthogonal to each other are described using an orthogonal coordinate system in a three-dimensional space, which are the front-rear direction, the left-right direction, and the up-down direction. In the drawings, the front is shown as Fr, the rear as Rr, the right side as R, the left side as L, the upper side as U, and the lower side as D.

[0011] As shown in FIGS. 1 and 2, the suction device 100 is configured to generate an aerosol containing a fragrance by heating a long, substantially cylindrical stick 500, which is an example of a fragrance component generation substrate having a filling material including an aerosol source and a fragrance source.

[0012] The stick 500 includes a filling material containing an aerosol source that is heated at a predetermined temperature to generate an aerosol. The type of the aerosol source is not particularly limited, and extract substances from various natural products and / or their constituent components can be selected according to the application. The aerosol source may be solid, or may be a liquid such as a polyhydric alcohol like glycerin or propylene glycol, or water. The aerosol source may include a fragrance source such as a tobacco raw material or an extract derived from a tobacco raw material that releases a fragrance component by heating. The gas to which the fragrance component is added is not limited to an aerosol, and for example, invisible vapor may be generated.

[0013] The filling material of the stick 500 may contain tobacco flakes as a fragrance source. The material of the tobacco flakes is not particularly limited, and known materials such as laminar and midrib can be used. The filling material may contain one or more kinds of fragrances. The type of the fragrance is not particularly limited, but from the viewpoint of imparting good taste, it is preferably menthol. The fragrance source may contain plants other than tobacco (for example, mint, Chinese herbal medicine, or herbs, etc.). Depending on the application, the stick 500 may not contain a fragrance source.

[0014] (Non-combustible suction device) As shown in FIGS. 1 to 3, the suction device 100 includes a case 110, a power source 10, a control unit 120, and a heating unit 130 disposed in the internal space of the case 110. The case 110 has a substantially rectangular parallelepiped shape including a front surface, a rear surface, a left surface, a right surface, an upper surface, and a lower surface. The power source 10 is a rechargeable secondary battery, an electric double layer capacitor, etc., and preferably a lithium ion secondary battery. The electrolyte of the power source 10 may be composed of one of a gel electrolyte, an electrolytic solution, a solid electrolyte, an ionic liquid, or a combination thereof.

[0015] As shown in FIG. 2, an opening 111 into which the stick 500 can be inserted and a slider 119 for opening and closing the opening 111 are provided on the upper surface of the case 110. The slider 119 is coupled to the case 110 so as to be movable in the front-rear direction between a position where the opening 111 is closed (see FIG. 1) and a position where the opening 111 is open (see FIG. 2).

[0016] As shown in FIG. 3, on the input side of the control unit 120, a power source 10, an intake sensor 15 for detecting a puff (intake) operation, an internal switch 16 for detecting the insertion of the stick 500, and an external switch 17 which is arranged outside the case 110 and is operated by the user are connected, and a heating unit 130 is connected to the output side of the control unit 120.

[0017] Further, inside the control unit 120, as a functional configuration realized by the cooperation of hardware and software, there are provided a heating control unit 122 for controlling the heating unit 130 based on switch signals of the internal switch 16 and the external switch 17, etc., a memory 123 for storing the heating duration of the heating unit 130, the number of puff operations, etc., and a power control unit 124 for managing the charging and discharging of the power source 10.

[0018] Note that the control unit 120 is specifically a processor (computer). The structure of this processor is more specifically an electric circuit formed by combining circuit elements such as semiconductor elements. Further, the intake sensor 15 may be composed of a condenser microphone, a pressure sensor, or the like. Furthermore, instead of detecting the puff by the intake sensor 15, the puff may be detected by sensing the temperature change of the heating unit 130 due to the puff with a thermistor.

[0019] The heating unit 130 heats the stick 500 inserted from the opening 111 without burning it. When the stick 500 is heated, an aerosol is generated from the aerosol source contained in the stick 500, and the fragrance of the fragrance source contained in the stick 500 is added to the aerosol. The user can suck the aerosol containing the fragrance by sucking the suction port 502 of the stick 500 protruding from the opening 111.

[0020] (Heating unit of the first embodiment) As shown in FIGS. 4 and 5, the heating unit 130 includes a conversion circuit 135 (see FIG. 3) that converts the electric power supplied from the power source 10 into high-frequency power, a cavity 131 through which the stick 500 can be inserted and removed via the opening 111, a magnetic body 132 made of a ferromagnetic material such as a ferrite core, an induction coil 133 wound around the magnetic body 132 and supplied with high-frequency power, and a susceptor 134 through which an induced current (eddy current) flows due to the magnetic flux generated by the induction coil 133 and which converts the induced current into Joule heat (heat generation due to hysteresis loss). The heating unit 130 heats the stick 500 by so-called induction heating.

[0021] By using the magnetic body 132 in induction heating, the directivity of the magnetic flux generated by the induction coil 133 is improved by the magnetic body 132, and the efficiency of induction heating is increased as the magnetic flux density passing through the susceptor 134 increases. Further, the magnetic body 132 is magnetized as the magnetic flux generated by the induction coil 133 passes through the magnetic body 132, and the magnetic flux density passing through the susceptor 134 also increases due to the magnetic flux emitted from the magnetic body 132.

[0022] The susceptor 134 is a conductive member with a circular cross-section in a plane orthogonal to the longitudinal direction. The longitudinal direction coincides with the insertion / removal direction of the stick 500, and it is disposed in the cavity 131 so as to protrude from the bottom surface portion 131a of the cavity 131 toward the opening 111 side. A recess 504 into which the susceptor 134 fits when inserted into the cavity 131 is formed in the tip surface portion in the insertion direction of the stick 500. By heating the susceptor 134 in the state of being fitted into the recess 504 by induction heating, the stick 500 is heated from the inner peripheral side. Further, a protrusion 134a that becomes smaller in diameter toward the tip side is formed at the end portion of the susceptor 134 on the opening 111 side, and this protrusion 134a functions as a fitting guide when fitting into the recess 504 of the stick 500. Note that the protrusion 134a may be a portion having a shape different from the cylindrical main body of the susceptor 134. The susceptor 134 is not limited to a cylindrical shape, and may be a prismatic shape or a flat plate shape, and the protrusion 134a may be a needle shape, a pyramid shape, a column shape, a trapezoid shape, or the like.

[0023] The magnetic body 132 is a ferromagnetic member having a cylindrical shape with a circular cross-section in a plane orthogonal to the longitudinal direction, and the longitudinal direction coincides with the insertion / removal direction of the stick 500. The magnetic body 132 of the present embodiment includes a coil winding portion 132a around which the induction coil 133 is wound, and an extending portion 132b that extends to the inside of the susceptor 134. Note that the magnetic body 132 may be composed only of the coil winding portion 132a, and the extending portion 132b may be omitted. However, by providing the extending portion 132b, more magnetic flux can be passed through the susceptor 134, and the entire stick can be heated.

[0024] Further, the magnetic body 132 is not limited to a cylindrical shape, and may be a prismatic shape or a flat plate shape. By adopting such a simple shape, the manufacturing cost can be reduced. However, by making the magnetic body 132 cylindrical, the magnetic field generated by the magnetic body 132 and the induction coil 133 has isotropy, so the heating efficiency of the stick 500 can be made constant with respect to the angle in the rolling direction of the stick 500 when inserted into the cavity 131. The magnetic body 132 is made of, for example, ferrite.

[0025] The induction coil 133 is wound around the coil winding portion 132a of the magnetic body 132 and generates magnetic flux in response to the application of high-frequency power. Most of the magnetic flux generated by the induction coil 133 reaches the susceptor 134 through the magnetic body 132, causing an induced current to be generated in the susceptor 134. The induction coil 133 wound around the coil winding portion 132a of the magnetic body 132 is arranged such that the center line C1 passing through the center of the coil coincides with the insertion and extraction direction of the stick 500. The induction coil 133 is arranged to be aligned with the susceptor 134 in the insertion and extraction direction of the stick 500.

[0026] That is, the susceptor 134 is arranged on the opening 111 side as viewed from the induction coil 133. In other words, the susceptor 134 is arranged between the induction coil 133 and the opening 111 in the insertion and extraction direction of the stick 500. Therefore, while suppressing the thickening of the aspirator 100 in the radial direction, the magnetic flux amplified by the magnetic body 132 can be passed through the susceptor 134. Thereby, while miniaturizing the aspirator 100, the stick 500 can be efficiently heated.

[0027] Also, the induction coil 133 is not wound around the susceptor 134. By doing so, not only can the shape of the induction coil 133 be prevented from becoming complicated, but it is also not necessary to expose the induction coil 133 inside the cavity 131, and the size and cost of the aspirator 100 can be reduced.

[0028] Also, in the present embodiment, when arranging the induction coil 133 and the susceptor 134 in a line in the insertion and extraction direction of the stick 500, the virtual line C2 obtained by extending the center line C1 of the induction coil 133 toward the opening 111 side overlaps with the center line C3 of the susceptor 134. By doing so, the magnetic flux generated by the induction coil 133 and the magnetic body 132 easily passes through the center of the susceptor 134, and it becomes possible to pass a large amount of magnetic flux through the susceptor 134.

[0029] In addition, since the magnetic body 132 extends to the inside of the susceptor 134, more magnetic flux can pass through the susceptor 134. In the present invention, "A extends to B" means that at least a part of A overlaps with B in the insertion and extraction direction of the stick 500, and "A does not extend to B" means that A does not overlap with B in the insertion and extraction direction.

[0030] Also, in the present embodiment, as shown in FIG. 6, when extending the magnetic body 132 to the inside of the susceptor 134, the magnetic body 132 is made not to extend to the protrusion 134a of the susceptor 134. By doing so, the shape of the magnetic body 132 can be made simpler than the case where the magnetic body 132 is extended to the protrusion 134a of the susceptor 134.

[0031] Also, in the present embodiment, as shown in FIG. 5, the length L1 of the induction coil 133 in the insertion and extraction direction of the stick 500 is made longer than the length L2 of the susceptor 134 in the same direction. By doing so, a high magnetic flux density magnetic field can be generated by the long induction coil 133, so that the generation amount and generation efficiency of the aerosol can be improved. Note that the length L1 of the induction coil 133 in the insertion and extraction direction of the stick 500 may be made shorter than the length L2 of the susceptor 134 in the same direction. In this case, since the long susceptor 134 makes it easier to heat the entire length of the stick 500, the generation amount and generation efficiency of the aerosol can be improved.

[0032] (Heating section of the second embodiment) Next, the heating sections 130B to 130D of the second to fourth embodiments will be described with reference to FIGS. 7 to 11. However, for the configurations common to the above embodiments, the descriptions of the above embodiments may be incorporated by using the same reference numerals as those of the above embodiments.

[0033] As shown in Fig. 7, the heating unit 130B of the second embodiment is different from the first embodiment in that when extending the magnetic body 132 to the inside of the susceptor 134, the magnetic body 132 is extended to the tip surface of the protrusion 134a of the susceptor 134. By doing so, since magnetic flux can pass through to the end of the susceptor 134, the heating efficiency of the stick 500 can be improved.

[0034] (Heating unit of the third embodiment) As shown in Fig. 8, the heating unit 130C of the third embodiment is different from the second embodiment in that when extending the magnetic body 132 to the inside of the susceptor 134, the magnetic body 132 is extended to the protrusion 134a of the susceptor 134 but not to the tip surface of the protrusion 134a. By doing so, not only can magnetic flux pass through substantially the entire length of the susceptor 134, but it also becomes difficult for impurities and liquid to penetrate from the interface between the magnetic body 132 and the susceptor 134. As a result, the durability of the aspirator 100 is improved and its operation becomes stable.

[0035] (Heating unit of the fourth embodiment) As shown in Figs. 9 and 10, the heating unit 130D of the fourth embodiment is different from the above-described embodiments in that the susceptor 134 has a slit 134b extending in the insertion and extraction direction of the stick 500. In the heating units 130, 130B, and 130C of the foregoing embodiments, the magnetic flux density passing through the susceptor 134 by the magnetic body 132 increases, but still the magnetic flux density may decrease from the side closer to the induction coil 133 to the side farther away in the susceptor 134. When such an unevenness in magnetic flux density occurs, the induced current concentrates near the root of the susceptor 134 close to the induction coil 133, and a temperature gradient is generated in the susceptor 134 where the temperature is high near the root of the susceptor 134 and low as it moves away from the induction coil 133. When a temperature gradient occurs in the susceptor 134, the stick 500 cannot be heated uniformly, and the aerosol generation efficiency may deteriorate.

[0036] Therefore, in the present embodiment, by providing the susceptor 134 with a slit 134b extending in the insertion and extraction direction of the stick 500, the flow of the induced current in the susceptor 134 is improved by the slit 134b, and the temperature gradient likely to occur in the longitudinal direction of the susceptor 134 is alleviated.

[0037] Preferably, the end of the slit 134b on the opening 111 side does not extend to the protrusion 134a of the susceptor 134. Further, preferably, the end of the slit 134b on the induction coil 133 side extends to the end (end face) of the susceptor 134 on the induction coil 133 side. By doing so, as shown in FIG. 11, the induced current that tends to concentrate on the induction coil 133 side of the susceptor 134 detours around the slit 134b and circulates to the opening 111 side. As a result, the induced current can flow from the root side to the tip side of the susceptor 134, and it becomes possible to further alleviate the temperature gradient of the susceptor 134.

[0038] An insulating member (not shown) can be provided in the slit 134b. In other words, the slit 134b may be filled with an insulating member. As a specific example, an epoxy resin may be used as this insulating member. By doing so, the intrusion of foreign matter from the slit 134b can be suppressed, so that the durability of the aspirator 100 can be improved. In the examples shown in FIGS. 9 to 11, the slit 134b was only at one location in the circumferential direction, but two or more slits may be provided. Also, a ceramic or glass having better heat resistance than the epoxy resin may be used as the insulating member.

[0039] As described above, various embodiments have been described with reference to the drawings. Needless to say, the present invention is not limited to such examples. It is obvious that those skilled in the art can conceive of various modification examples or correction examples within the scope described in the claims, and it is naturally understood that they also belong to the technical scope of the present invention. Also, within the scope not departing from the gist of the invention, the components in the above embodiments may be arbitrarily combined.

[0040] The following matters are at least described in this specification. In the parentheses, corresponding components and the like in the above-described embodiments are shown, but the present invention is not limited thereto.

[0041] (1) A power supply (power supply 10), A conversion circuit (conversion circuit 135) that converts the electric power supplied from the power supply into high-frequency power, A cavity (cavity 131) into which a stick (stick 500) including an aerosol source can be inserted and removed through an opening (opening 111), A magnetic body (magnetic body 132), An induction coil (induction coil 133) wound around the magnetic body and supplied with the high-frequency power, A susceptor (susceptor 134) provided in the cavity through which an induced current generated by the magnetic field of the induction coil and the magnetic body flows, The susceptor is an aerosol generating device disposed on the opening side when viewed from the induction coil.

[0042] According to (1), by arranging the induction coil and the susceptor in a row, it is possible to pass the magnetic flux amplified by the magnetic body through the susceptor while suppressing the aerosol generating device from becoming thick in the radial direction. Thereby, while miniaturizing the aerosol generating device, it is possible to heat the stick throughout.

[0043] (2) The aerosol generating device according to (1), The magnetic body extends to the inside of the susceptor, Aerosol generating device.

[0044] According to (2), since a larger amount of magnetic flux can be passed through the susceptor by the magnetic body extending to the inside of the susceptor, the entire stick can be heated.

[0045] (3) The aerosol generating device according to (2), The susceptor has a protrusion (protrusion 134a) at an end portion on the opening side, The magnetic body does not extend to the protrusion. Aerosol generating device.

[0046] According to (3), the shape of the magnetic body can be made simpler compared to the case where the magnetic body is extended to the protrusion of the susceptor, so the cost of the aerosol generating device can be reduced.

[0047] (4) An aerosol generating device according to any one of (1) to (3), The magnetic body has a flat plate shape or a cylindrical shape. Aerosol generating device.

[0048] According to (4), a magnetic body with a simple shape can be used, so the cost of the aerosol generating device can be reduced.

[0049] (5) An aerosol generating device according to (2), The susceptor has a protrusion (protrusion 134a) at the end on the opening side, The magnetic body extends to the protrusion. Aerosol generating device.

[0050] According to (5), compared to the case where the magnetic body is not extended to the protrusion of the susceptor, magnetic flux can be passed through the entire length of the susceptor, so the stick can be heated throughout its entire length.

[0051] (6) An aerosol generating device according to (5), The magnetic body extends to the tip surface of the protrusion. Aerosol generating device.

[0052] According to (6), magnetic flux can be passed through to the end of the susceptor, so the stick can be heated throughout its entire length.

[0053] (7) An aerosol generating device according to (5), The magnetic body does not extend to the tip surface of the protrusion. Aerosol generating device.

[0054] According to (7), since it becomes difficult for impurities and liquid to enter from the interface between the magnetic body and the susceptor, the durability of the aerosol generator is improved and its operation becomes stable.

[0055] (8) An aerosol generator according to any one of (1) to (7), A virtual line (virtual line C2) obtained by extending a center line (center line C1) of the induction coil extending in the insertion / extraction direction of the stick to the opening side overlaps with a center line (center line C3) of the susceptor extending in the insertion / extraction direction. Aerosol generator.

[0056] (8) According to (8), the magnetic flux amplified by the magnetic body easily passes through the center of the susceptor, and a large amount of magnetic flux can pass through the susceptor.

[0057] (9) An aerosol generator according to any one of (1) to (8), The induction coil is not wound around the susceptor. Aerosol generator.

[0058] (9) According to (9), since the shape of the induction coil does not become complicated and there is no need to expose the induction coil in the cavity, the size and cost of the aerosol generator can be reduced.

[0059] (10) An aerosol generator according to any one of (1) to (9), A length (length L1) of the induction coil in the insertion / extraction direction of the stick is shorter than a length (length L2) of the susceptor in the insertion / extraction direction. Aerosol generator.

[0060] (10) According to (10), since a long susceptor makes it easy to heat the stick over its entire length, the amount of aerosol generated and the generation efficiency can be improved.

[0061] (11) An aerosol generator according to any one of (1) to (9), The length of the induction coil (length L1) in the insertion and extraction direction of the stick is longer than the length of the susceptor (length L2) in the insertion and extraction direction. Aerosol generating device.

[0062] According to (11), since a long induction coil can generate a magnetic field with a high magnetic flux density, the amount and efficiency of aerosol generation can be improved.

[0063] (12) An aerosol generating device according to any one of (1) to (11), The susceptor has a gap (slit 134b) extending in the insertion and extraction direction of the stick. Aerosol generating device.

[0064] According to (12), the gap can improve the flow of the induced current in the susceptor, so that the stick can be heated uniformly throughout.

[0065] (13) An aerosol generating device according to (12), The susceptor has a protrusion (protrusion 134a) at the end on the opening side. The gap does not extend up to the protrusion. Aerosol generating device.

[0066] According to (13), the induced current that tends to concentrate near the base of the susceptor can be made to flow to other parts of the susceptor, so that the stick can be heated appropriately throughout.

[0067] (14) An aerosol generating device according to (12) or (13), The susceptor has a protrusion (protrusion 134a) at the end on the opening side. The gap extends to the end on the side of the susceptor different from the opening side. Aerosol generating device.

[0068] According to (14), the induced current that tends to concentrate near the base of the susceptor can be made to flow to other parts of the susceptor, so that the entire stick can be appropriately heated.

[0069] (15) An aerosol generating device according to any one of (12) to (14), wherein a member having insulating properties is provided in at least a part of the gap. Aerosol generating device.

[0070] (15) According to (15), intrusion of foreign matter from the slit can be suppressed, so that the durability of the aerosol generating device is improved and its operation becomes stable.

Explanation of reference numerals

[0071] 10 Power supply 111 Opening 131 Cavity 132 Magnetic body 133 Induction coil 134 Susceptor 134a Protrusion 134b Slit (gap) 135 Conversion circuit 500 Stick

Claims

1. A power supply, a conversion circuit that converts the power supplied from the power supply into high-frequency power, a cavity in which a stick containing an aerosol source can be inserted and removed through an opening, a magnetic body, an induction coil wound around the magnetic body and supplied with the high-frequency power, a susceptor provided in the cavity through which an induced current generated by the magnetic field of the induction coil and the magnetic body flows, and comprising: the induction coil and the susceptor are arranged side by side in a line in the insertion and removal direction of the stick, the susceptor is arranged on the opening side when viewed from the induction coil, an aerosol generating device.

2. The aerosol generating device according to claim 1, wherein the magnetic body extends into the susceptor, an aerosol generating device.

3. The aerosol generating device according to claim 2, wherein the susceptor has a protrusion at the end on the opening side, the magnetic body does not extend to the protrusion, an aerosol generating device.

4. The aerosol generating device according to any one of claims 1 to 3, wherein the magnetic body has a flat plate shape or a cylindrical shape, an aerosol generating device.

5. The aerosol generating device according to claim 2, wherein the susceptor has a protrusion at the end on the opening side, the magnetic body extends to the protrusion, an aerosol generating device.

6. The aerosol generating device according to claim 5, wherein the magnetic body extends to the tip surface of the protrusion, an aerosol generating device.

7. The aerosol generating device according to claim 5, wherein the magnetic body does not extend to the tip surface of the protrusion, an aerosol generating device.

8. The aerosol generating device according to any one of claims 1 to 7, wherein a virtual line obtained by extending the center line of the induction coil extending in the insertion and removal direction of the stick to the opening side overlaps with the center line of the susceptor extending in the insertion and removal direction, an aerosol generating device.

9. The aerosol generating device according to any one of claims 1 to 8, wherein the induction coil is not wound around the susceptor, an aerosol generating device.

10. The aerosol generating device according to any one of claims 1 to 9, wherein the length of the induction coil in the insertion and removal direction of the stick is shorter than the length of the susceptor in the insertion and removal direction, an aerosol generating device.

11. The aerosol generating device according to any one of claims 1 to 9, wherein The length of the induction coil in the insertion and extraction direction of the stick is longer than the length of the susceptor in the insertion and extraction direction. Aerosol generating device.

12. An aerosol generating device according to any one of Claims 1 to 11, wherein the susceptor has a gap extending in the insertion and extraction direction of the stick. Aerosol generating device.

13. An aerosol generating device according to Claim 12, wherein the susceptor has a protrusion at the end on the opening side, and the gap does not extend up to the protrusion. Aerosol generating device.

14. An aerosol generating device according to Claim 12 or 13, wherein the susceptor has a protrusion at the end on the opening side, and the gap extends to the end on the side different from the opening side of the susceptor. Aerosol generating device.

15. An aerosol generating device according to any one of Claims 12 to 14, wherein a member having insulating properties is provided in at least a part of the gap. Aerosol generating device.

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