Aerosol generation system

Abstract

According to the present invention, an aerosol generation system comprises: a stick (500–500F) that includes an aerosol source (504) and a susceptor (505–505F); and an aerosol generation device (100). The aerosol generation device (100) comprises a power supply (10), a conversion circuit (135) that converts power supplied from the power supply (10) to high-frequency power, a cavity (131) into which the stick (500) can be removably inserted via an opening, a first magnetic body (132), and an induction coil (133) that is wound around the first magnetic body (132) and receives the high-frequency power. When the stick (500) has been inserted into the cavity (131), the longitudinal direction of the first magnetic body (133) and the longitudinal direction of the susceptor (505) coincide with the insertion / removal direction of the stick (500), and the susceptor (505) is arranged on the opening side as seen from the induction coil (133).

Description

Technical Field

[0001] The present invention relates to an aerosol generation system including a stick and an aerosol generator.

Background Art

[0002] There are known aerosol generators using induction heating with excellent heating efficiency (Patent Documents 1-5). Since induction heating requires more electrical components than resistance heating, the size of the aerosol generator tends to be large. The aerosol generators described in Patent Documents 1 and 2 generate aerosols by heating a liquid, and do not heat a stick including an aerosol source. On the other hand, the aerosol generators 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 body are arranged in the radial direction, the aerosol generation device becomes large in the radial direction. Since the user grasps the aerosol generation device in the radial direction, it is important to prevent the aerosol generation device from becoming thicker in the radial direction in order to improve the usability and marketability of the aerosol generation device.

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

Means for Solving the Problems

[0006] The present invention is a stick including an aerosol source and a susceptor, an aerosol generation system comprising an aerosol generation device, wherein the aerosol generation device includes a power source, a conversion circuit that converts the power supplied from the power source into high-frequency power, a cavity into which the stick can be inserted and removed through an opening, a first magnetic body, an induction coil wound around the first magnetic body and supplied with the high-frequency power, and in a state where the stick is inserted into the cavity, The induction coil and the susceptor are arranged side by side in a row in the insertion and extraction direction of the stick. the longitudinal direction of the first magnetic body and the longitudinal direction of the susceptor coincide with the insertion and removal direction of the stick, and 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 the aerosol generation device from becoming thicker in the radial direction.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

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Figure 4

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Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Mode for Carrying Out the Invention

[0009] (Aerosol Generation System) Hereinafter, the aerosol generation system in the present invention will be described with reference to the drawings. This aerosol generation system 1 includes a non-combustion aspirator 100 that is an aerosol generation device (hereinafter, also simply referred to as "aspirator 100") and a stick 500 that is heated by the aspirator 100.

[0010] FIG. 1 is a perspective view showing the overall configuration of the suction device 100. FIG. 2 is a perspective view of the aerosol generation system 1 with the stick 500 attached to the suction device 100. In the following description, a three-dimensional orthogonal coordinate system is used, where three directions orthogonal to each other are, for convenience, the front-back direction, the left-right direction, and the up-down direction. In the figures, the front is indicated 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] (Overview of the stick) The stick 500 contains 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 contain 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, an 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 or 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 a 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] (Overview of the non-combustible suction device) As shown in FIGS. 1 to 3, the aspirator 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, the 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 disposed outside the case 110 and operated by the user are connected, and on the output side of the control unit 120, the heating unit 130 is connected.

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

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

[0019] The heating unit 130 heats the stick 500 inserted from the opening 111 without burning it. When the stick 500 is heated, 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] (Details of the heating unit and the stick) Next, the details of the heating unit 130 and the stick 500 will be described with reference to FIGS. 4 to 6. The heating unit 130 includes a conversion circuit 135 (see FIG. 3) that converts the electric power supplied from the power supply 10 into high-frequency electric power, a cavity 131 through which the stick 500 can be inserted and removed via the opening 111, a first magnetic body 132 made of a ferromagnetic material such as a ferrite core, and an induction coil 133 that is wound around the first magnetic body 132 and to which high-frequency electric power is supplied.

[0021] When the stick 500 is inserted into the cavity 131, it includes a suction port 502 (filter) located at the end on the opening 111 side, which is one side in the insertion / extraction direction, a plug 503 located at the end on the induction coil 133 side, which is the other side in the insertion / extraction direction, and connected to the bottom surface portion 131a of the cavity 131, a susceptor 505 through which an induced current (eddy current) flows due to the magnetic flux generated by the induction coil 133 of the suction device 100 and which converts the induced current into Joule heat (heat generation due to hysteresis loss), an aerosol source 504 disposed around the susceptor 505, and a cooling flow path 506 located between the aerosol source 504 and the suction port 502 and cooling the aerosol. Note that the aerosol source 504 in the present embodiment includes a fragrance source.

[0022] The heating portion 130 of the suction device 100 and the susceptor 505 of the stick 500 heat the aerosol source 504 by so-called induction heating. Most of the magnetic flux generated by the induction coil 133 reaches the susceptor 505 of the stick 500 and generates an induced current in the susceptor 505. By using the first magnetic body 132 in induction heating, the directivity of the magnetic flux generated by the induction coil 133 is improved by the first magnetic body 132, and the efficiency of induction heating is increased as the magnetic flux density penetrating the susceptor 505 increases. Furthermore, since the magnetic flux generated by the induction coil 133 penetrates the first magnetic body 132, the first magnetic body 132 is magnetized, and the magnetic flux density penetrating the susceptor 505 also increases due to the magnetic flux emitted from the first magnetic body 132.

[0023] The first 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 induction coil 133 is wound around the outer peripheral side thereof. The susceptor 505 is a conductive member having a circular cross-section in a plane orthogonal to the longitudinal direction. Note that the first magnetic body 132 and the susceptor 505 are not limited to the cylindrical shape, and may be ferromagnetic members having a prismatic shape or a flat plate shape. When the stick 500 is inserted into the cavity 131, the longitudinal direction of the first magnetic body 132 and the longitudinal direction of the susceptor 505 coincide with the insertion / extraction direction of the stick 500, and the susceptor 505 is disposed on the opening 111 side as viewed from the induction coil 133.

[0024] According to the heating unit 130 and the stick 500 configured as described above, the induction coil 133 and the susceptor 505 are arranged in a line 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 first magnetic body 132 can be passed through the susceptor 505. Thereby, while miniaturizing the aspirator 100, the stick 500 can be heated over the entire length.

[0025] Further, since the first magnetic body 132 has a circular cross-section in a plane orthogonal to the longitudinal direction, the magnetic field generated by the first magnetic body 132 and the induction coil 133 has isotropy. Thereby, 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 inserting into the cavity 131. The first magnetic body 132 is made of, for example, ferrite. Note that the cross-section of the first magnetic body 132 may not be a perfect circle or an elliptical shape, but may be a shape including a straight line in a part thereof.

[0026] Further, in the present embodiment, when arranging the induction coil 133 and the susceptor 505 in a line in the insertion and extraction direction of the stick 500, as shown in FIGS. 4 and 6, a 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 505. By doing so, the magnetic flux generated by the induction coil 133 and the first magnetic body 132 easily passes through the center of the susceptor 505, and it becomes possible to pass a large amount of magnetic flux through the susceptor 505.

[0027] Further, as shown in FIGS. 4 to 6, the stick 500 includes a second magnetic body 507 disposed inside the susceptor 505 such that the longitudinal direction thereof coincides with the insertion and extraction direction of the stick 500. The second magnetic body 507 of the present embodiment is a cylindrical ferromagnetic member having a circular cross-section in a plane orthogonal to the longitudinal direction, and is arranged to be aligned in a line in the insertion and extraction direction of the first magnetic body 132 and the stick 500 in a state where the stick 500 is inserted into the cavity 131. The second magnetic body 507 is made of, for example, ferrite. Note that the cross-section of the second magnetic body 507 may not be a perfect circle or an elliptical shape, but may be a shape including a straight line in a part thereof.

[0028] When such a second magnetic body 507 is provided, more magnetic flux can be delivered to the susceptor 505 via the second magnetic body 507, so that the heating efficiency of the stick 500 can be improved. That is, the magnetic flux generated by the induction coil 133 penetrates the first magnetic body 132 and the second magnetic body 507, so that the first magnetic body 132 and the second magnetic body 507 are magnetized, and the magnetic flux density penetrating the susceptor 505 also increases due to the magnetic flux emitted from the first magnetic body 132 and the second magnetic body 507. In addition, since the cross-sections of the surfaces orthogonal to the longitudinal directions of the first magnetic body 132 and the second magnetic body 507 both have a circular shape, the magnetic field generated by the first magnetic body 132, the second magnetic body 507, and the induction coil 133 has isotropy. Thereby, 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 it is inserted into the cavity 131. Note that the second magnetic body 507 is not limited to a cylindrical shape, and may be a ferromagnetic member having a prismatic shape or a flat plate shape.

[0029] In addition, the cross-sectional area of the second magnetic body 507 on the surface orthogonal to the longitudinal direction of the second magnetic body 507 is preferably equal to or larger than the cross-sectional area of the first magnetic body 132 on the surface orthogonal to the longitudinal direction of the first magnetic body 132. By doing so, since most of the magnetic flux generated by the first magnetic body 132 and the induction coil 133 can be delivered to the susceptor 505, the heating efficiency of the stick 500 can be improved.

[0030] Further, the second magnetic body 507 has an end on the side of the induction coil 133 (hereinafter sometimes referred to as the other end) extending to the plug 503. For example, as shown in FIGS. 4 and 5, the other end of the second magnetic body 507 penetrates the plug 503 and extends to the other end of the stick 500. By doing so, the space between the first magnetic body and the second magnetic body becomes less likely to be empty compared to the case where the second magnetic body 507 does not extend to the plug 503. As a result, a large amount of magnetic flux can be delivered to the susceptor 505. In the present invention, "A extends to B" means that at least a part of A overlaps B in the insertion / extraction direction of the stick 500, and "A does not extend to B" means that A does not overlap B in the insertion / extraction direction. It should be noted that "A does not extend to B" includes the case where the end of A abuts on the end of B.

[0031] Also, as shown in FIGS. 4 and 5, the susceptor 505 also has an end on the side of the induction coil 133 (hereinafter sometimes referred to as the other end) extending to the plug 503, and further penetrates the plug 503 and extends to the other end of the stick 500. By doing so, leakage magnetic flux can be reduced compared to the case where the susceptor 505 is not extended to the plug 503, so the heating efficiency of the stick 500 can be improved.

[0032] (Second Embodiment) Next, the sticks 500B to 500F of the second to sixth embodiments will be described with reference to FIGS. 7 to 13. However, for the configurations common to the above embodiments, the same reference numerals as those in the above embodiments may be used, and the description of the above embodiments may be incorporated.

[0033] The stick 500B of the second embodiment is different from the first embodiment in that the other end of the susceptor 505B and the other end of the second magnetic body 507B do not extend to the plug 503B as shown in FIG. 7. That is, in the stick 500B, the other end of the susceptor 505B and the other end of the second magnetic body 507B abut on the plug 503B, and the plug 503B covers the other end of the susceptor 505B and the other end of the second magnetic body 507B.

[0034] According to such a second embodiment, since the susceptor 505B does not heat the plug 503B that does not contribute to aerosol generation, the portion that contributes to aerosol generation (the aerosol source 504) can be concentrated and heated, so that the aerosol generation efficiency can be improved. Further, it is possible to prevent the susceptor 505B and the second magnetic body 507B from falling off the stick 500B due to the plug 503B.

[0035] (Third Embodiment) As shown in FIG. 8, the stick 500C of the third embodiment is different from the first embodiment in that the other end of the susceptor 505C does not extend to the plug 503C, and is different from the second embodiment in that the other end of the second magnetic body 507C extends to the plug 503C. That is, in the stick 500C, the other end of the susceptor 505C abuts on the plug 503C, and the plug 503C covers the other end of the susceptor 505C. Further, the other end of the second magnetic body 507C extends to the plug 503C, and further penetrates the plug 503C and extends to the other end of the stick 500.

[0036] According to such a third embodiment, since the susceptor 505C does not heat the plug 503C that does not contribute to aerosol generation, the portion that contributes to aerosol generation (the aerosol source 504) can be concentrated and heated, so that the aerosol generation efficiency can be improved. Further, compared with the case where the second magnetic body 507C does not extend to the plug 503C, more magnetic flux can be delivered from the first magnetic body 132 to the susceptor 505B through the second magnetic body 507C. Further, it is possible to prevent the susceptor 505C from falling off the stick 500C due to the plug 503C.

[0037] (Fourth Embodiment) As shown in FIG. 9, the stick 500D of the fourth embodiment is different from the first to third embodiments in that the susceptor 505D does not contain a magnetic body inside. That is, in the stick 500D, only the other end of the susceptor 505D extends to the plug 503D, and further penetrates the plug 503D and extends to the other end of the stick 500.

[0038] According to such a fourth embodiment, compared with the case where a magnetic body is provided inside the susceptor 505D, the structure of the stick 500D becomes simpler, so that the cost of the stick 500D can be reduced. Further, since the susceptor 505D extends to the plug 503D, compared with the case where the susceptor 505D is not extended to the plug 503D, it can reach from the first magnetic body 132 to the susceptor 505B, so that leakage magnetic flux can be reduced and the heating efficiency of the stick 500D can be improved.

[0039] (Fifth Embodiment) As shown in FIG. 10, the stick 500E of the fifth embodiment is different from the first to third embodiments in that it does not contain a magnetic body inside the susceptor 505E, and is different from the fourth embodiment in that the susceptor 505E does not extend to the plug 503E. That is, in the stick 500E, only the other end of the susceptor 505E abuts against the plug 503E, and the plug 503E covers the other end of the susceptor 505E.

[0040] According to such a fifth embodiment, compared with the case where a magnetic body is provided inside the susceptor 505E, the structure of the stick 500E becomes simpler, so that the cost of the stick 500E can be reduced. Further, since the susceptor 505E does not heat the plug 503E that does not contribute to aerosol generation, the portion contributing to aerosol generation (aerosol source 504) can be intensively heated, so that the aerosol generation efficiency can be improved. Further, it is possible to prevent the susceptor 505E from falling off from the stick 500E due to the plug 503E.

[0041] (Sixth Embodiment) As shown in FIGS. 11 and 12, the stick 500F of the sixth embodiment is different from the first embodiment in that the susceptor 505F has a slit 505a extending in the longitudinal direction (the insertion and extraction direction of the stick 500F). In the first embodiment, the magnetic flux density penetrating the susceptor 505 by the first magnetic body 132 and the second magnetic body 507 increases, but still, the magnetic flux density may decrease from the side closer to the induction coil 133 toward the side farther from the induction coil 133 in the susceptor 505. When such an unevenness in magnetic flux density occurs, an induced current concentrates near the base of the susceptor 505 close to the induction coil 133, and a temperature gradient occurs in the susceptor 505 where the temperature is high near the base of the susceptor 505 and low as it moves away from the induction coil 133. When a temperature gradient occurs in the susceptor 505, the stick 500 cannot be heated uniformly, and the aerosol generation efficiency may deteriorate.

[0042] Therefore, in this embodiment, a slit 505a extending in the longitudinal direction is provided in the susceptor 505F. Thereby, the flow of the induced current in the susceptor 505F is improved by the slit 505a, and the temperature gradient that easily occurs in the longitudinal direction of the susceptor 505F can be alleviated.

[0043] Further, the susceptor 505F has a protrusion 505b at the end on the opening 111 side. It is preferable that the slit 505a does not extend to the protrusion 505b. Also, the slit 505a is preferably formed such that the end on the induction coil 133 side extends to the end of the susceptor 505F on the induction coil 133 side. In this way, as shown in FIG. 13, the induced current that tends to concentrate on the induction coil 133 side of the susceptor 505F detours around the slit 505a and circulates to the opening 111 side. Thereby, an induced current can flow from the base side to the tip side of the susceptor 505F, and it becomes possible to further alleviate the temperature gradient of the susceptor 505. Although the case where the susceptor 505F has the protrusion 505b has been exemplified, it is not necessarily required to have the protrusion 505b. In this case, it is preferable that the slit 505a does not extend to the end on the opening 111 side. Also, the length of the slit 505a is preferably 3 / 4 or less, or 1 / 2 or less of the total length in the longitudinal direction.

[0044] An insulating member (not shown) can be provided in the slit 505a. In other words, the slit 505a may be filled with an insulating member. As a specific example, an epoxy resin may be used as the insulating member. By doing so, the intrusion of foreign matter from the slit 505a can be suppressed, and the durability of the aspirator 100 can be improved. In the examples shown in FIGS. 11 to 13, the slit 505a was provided at only one location in the circumferential direction, but two or more slits may be provided. Further, the slit 505a can also be applied to the susceptors 505B to 505E of the second to fifth embodiments. Also, a ceramic or glass having better heat resistance than the epoxy resin may be used as the insulating member.

[0045] 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 respective components in the above embodiments may be arbitrarily combined.

[0046] At least the following matters are described in this specification. Although the corresponding components etc. in the above-described embodiments are shown in parentheses, the present invention is not limited thereto.

[0047] (1) A stick (sticks 500 to 500F) including an aerosol source (aerosol source 504) and a susceptor (susceptors 505 to 505F), An aerosol generation system (aerosol generation system 1) including an aerosol generation device (non-combustion aspirator 100), wherein The aerosol generation device includes A power source (power source 10), A conversion circuit (conversion circuit 135) that converts the electric power supplied from the power source into high-frequency power, a cavity (cavity 131) into which the stick can be inserted and removed through an opening, a first magnetic body (first magnetic body 132), an induction coil (induction coil 133) wound around the first magnetic body and to which the high-frequency power is supplied, and in a state where the stick is inserted into the cavity, the longitudinal direction of the first magnetic body and the longitudinal direction of the susceptor coincide with the insertion and removal direction of the stick, and the susceptor is disposed on the opening side when viewed from the induction coil, an aerosol generation system.

[0048] (1) According to this, by arranging the first magnetic body and the susceptor in a row in the insertion and removal direction so that their longitudinal directions coincide with the insertion and removal direction of the stick, while suppressing the aerosol generation device from becoming thick in the radial direction, the magnetic flux amplified by the first magnetic body can be passed through the susceptor. Thereby, while miniaturizing the aerosol generation device, the stick can be heated throughout.

[0049] (2) The aerosol generation system according to (1), the cross section of the first magnetic body in a plane orthogonal to the longitudinal direction of the first magnetic body has a circular shape, an aerosol generation system.

[0050] (2) According to this, since the magnetic field generated by the first magnetic body and the induction coil has isotropy, the heating efficiency of the stick can be made constant with respect to the angle in the rolling direction of the stick when inserting into the cavity.

[0051] (3) The aerosol generation system according to (1), the stick includes a second magnetic body (second magnetic bodies 507 to 507C) at least a part of which is located inside the susceptor, an aerosol generation system.

[0052] According to (3), more magnetic flux can be delivered to the susceptor, so the heating efficiency of the stick can be improved.

[0053] (4) The aerosol generation system according to (3), The cross-section of the first magnetic body on the plane orthogonal to the longitudinal direction of the first magnetic body has a circular shape, The cross-section of the second magnetic body on the plane orthogonal to the longitudinal direction of the second magnetic body has a circular shape, Aerosol generation system.

[0054] (4) According to this, since the magnetic field generated by the first magnetic body, the second magnetic body, and the induction coil has isotropy, the heating efficiency of the stick can be made constant with respect to the angle in the rolling direction of the stick when inserted into the cavity.

[0055] (5) The aerosol generation system according to (4), The cross-sectional area of the second magnetic body on the plane orthogonal to the longitudinal direction of the second magnetic body is equal to or larger than the cross-sectional area of the first magnetic body on the plane orthogonal to the longitudinal direction of the first magnetic body, Aerosol generation system.

[0056] (5) According to this, since much of the magnetic flux generated by the first magnetic body and the induction coil can be delivered to the susceptor, the heating efficiency of the stick can be improved.

[0057] (6) The aerosol generation system according to any one of (3) to (5), The stick includes a suction port (suction port 502) located on the opening side and a plug (plug 503) located on the side opposite to the opening side in the insertion and extraction direction of the stick, The second magnetic body extends to the plug, Aerosol generation system.

[0058] According to (6), compared with the case where the second magnetic body does not extend to the plug, the space between the first magnetic body and the second magnetic body is less likely to be empty. As a result, more magnetic flux can be delivered to the susceptor, so the heating efficiency of the stick can be improved.

[0059] (7) An aerosol generation system according to (6), wherein the susceptor extends to the plug, aerosol generation system.

[0060] (7) According to (7), compared with the case where the susceptor does not extend to the plug, leakage magnetic flux can be reduced, so the heating efficiency of the stick can be improved.

[0061] (8) An aerosol generation system according to (6), wherein the susceptor does not extend to the plug, aerosol generation system.

[0062] (8) According to (8), by not heating the plug that does not contribute to aerosol generation, the portion that contributes to aerosol generation can be concentratedly heated, so the aerosol generation efficiency can be improved. Also, the detachment of the susceptor can be suppressed.

[0063] (9) An aerosol generation system according to (1) or (2), wherein the stick does not contain a magnetic body inside the susceptor, aerosol generation system.

[0064] (9) According to (9), compared with the case where a magnetic body is provided inside the susceptor, the structure of the stick becomes simpler, so the cost of the stick can be reduced.

[0065] (10) An aerosol generation system according to (9), wherein the stick includes a suction port (suction port 502) located on the opening side and a plug (plug 503) located on the side opposite to the opening side in the insertion and extraction direction of the stick, The susceptor extends to the plug. Aerosol generation system.

[0066] (10) According to this, compared with the case where the susceptor does not extend to the plug, the leakage magnetic flux can be reduced, so the heating efficiency of the stick can be improved.

[0067] (11) The aerosol generation system according to (9), The stick includes a suction port (suction port 502) located on the opening side and a plug (plug 503) located on the side opposite to the opening side in the insertion and extraction direction of the stick. The susceptor does not extend to the plug. Aerosol generation system.

[0068] (11) According to this, by not heating the plug that does not contribute to aerosol generation, the portion that contributes to aerosol generation can be concentratedly heated, so the generation efficiency of the aerosol can be improved. Also, the detachment of the susceptor can be suppressed.

[0069] (12) The aerosol generation system according to any one of (1) to (11), The susceptor has a gap (slit 505a) extending in the longitudinal direction. Aerosol generation system.

[0070] (12) According to this, the flow of the induced current in the susceptor can be improved by the gap, so the entire stick can be heated.

[0071] (13) The aerosol generation system according to (12), The susceptor has a protrusion (protrusion 505b) at the end on the opening side. The gap does not extend to the protrusion. Aerosol generation system.

[0072] 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 entire stick can be heated.

[0073] An aerosol generation system according to (14), (12) or (13), wherein the gap extends to an end portion on the side opposite to the opening side, Aerosol generation system.

[0074] 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 heated.

[0075] An aerosol generation system according to any one of (15), (12) to (14), wherein at least a part of the gap is provided with a member having insulating properties, Aerosol generation system.

[0076] According to (15), intrusion of foreign matter from the slit can be suppressed, so that the durability of the aerosol generation device is improved and its operation is stabilized.

Explanation of reference numerals

[0077] 1 Aerosol generation system 10 Power supply 100 Non-combustion type suction device (aerosol generation device) 131 Cavity 132 First magnetic body 133 Induction coil 135 Conversion circuit 500~500F Stick 502 Suction port 503~503E Plug 504 Aerosol source 505~505F Susceptor 505a Slit (gap) 505b Projection 507 Second magnetic body

Claims

1. A stick including an aerosol source and a susceptor, and an aerosol generating device, comprising an aerosol generating system, wherein the aerosol generating device includes a power source, a conversion circuit that converts the power supplied from the power source into high-frequency power, a cavity into which the stick can be inserted and removed through an opening, a first magnetic body, an induction coil wound around the first magnetic body and supplied with the high-frequency power, and in a state where the stick is inserted into the cavity, the induction coil and the susceptor are arranged in a line in the insertion and removal direction of the stick, the longitudinal direction of the first magnetic body and the longitudinal direction of the susceptor coincide with the insertion and removal direction of the stick, and the susceptor is arranged on the opening side when viewed from the induction coil, an aerosol generating system.

2. The aerosol generating system according to claim 1, wherein a cross-section of the first magnetic body in a plane orthogonal to the longitudinal direction of the first magnetic body has a circular shape, an aerosol generating system.

3. The aerosol generating system according to claim 1, wherein the stick includes a second magnetic body at least a part of which is located inside the susceptor, an aerosol generating system.

4. The aerosol generating system according to claim 3, wherein a cross-section of the first magnetic body in a plane orthogonal to the longitudinal direction of the first magnetic body has a circular shape, a cross-section of the second magnetic body in a plane orthogonal to the longitudinal direction of the second magnetic body has a circular shape, an aerosol generating system.

5. The aerosol generating system according to claim 4, wherein a cross-sectional area of the second magnetic body in a plane orthogonal to the longitudinal direction of the second magnetic body is equal to or larger than a cross-sectional area of the first magnetic body in a plane orthogonal to the longitudinal direction of the first magnetic body, an aerosol generating system.

6. The aerosol generating system according to any one of claims 3 to 5, wherein the stick includes a suction port located on the opening side and a plug located on the side opposite to the opening side in the insertion and removal direction of the stick, the second magnetic body extends to the plug, an aerosol generating system.

7. The aerosol generating system according to claim 6, wherein the susceptor extends to the plug, an aerosol generating system.

8. The aerosol generating system according to claim 6, wherein the susceptor does not extend to the plug, Aerosol generation system.

9. The aerosol generation system according to claim 1 or 2, wherein the stick does not contain a magnetic material inside the susceptor, Aerosol generation system.

10. The aerosol generation system according to claim 9, wherein the stick includes a suction port located on the opening side and a plug located on the side opposite to the opening side in the insertion and extraction direction of the stick, and the susceptor extends to the plug, Aerosol generation system.

11. The aerosol generation system according to claim 9, wherein the stick includes a suction port located on the opening side and a plug located on the side opposite to the opening side in the insertion and extraction direction of the stick, and the susceptor does not extend to the plug, Aerosol generation system.

12. The aerosol generation system according to any one of claims 1 to 11, wherein the susceptor has a gap extending in the longitudinal direction, Aerosol generation system.

13. The aerosol generation system according to claim 12, wherein the susceptor has a protrusion at the end on the opening side, and the gap does not extend to the protrusion, Aerosol generation system.

14. The aerosol generation system according to claim 12 or 13, wherein the gap extends to the end on the side opposite to the opening side, Aerosol generation system.

15. The aerosol generation system 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 generation system.

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