Aerosol-generating device and aerosol-generating system comprising aerosol-generating device

Abstract

The aerosol-generating device comprises: a housing; a receiving portion located inside the housing and including a receiving space configured to receive at least a portion of an aerosol-generating article; and a coil arranged to surround at least one area of an outer circumferential surface of the accommodating portion and configured to generate an alternating magnetic field when power is supplied thereto, in which the coil includes: a first coil having a first resistance value; and a second coil arranged to be spaced apart from the first coil in a first direction in which the accommodating portion extends, and the second coil having a second resistance value different from the first resistance value.

Description

Technical Field

[0001] Embodiments relate to an aerosol generating device and an aerosol generating system including the aerosol generating device, and more particularly, to an aerosol generating device capable of generating aerosol by induction heating. Background Art

[0002] Recently, there has been an increase in demand for alternative methods that overcome the disadvantages of conventional cigarettes. For example, there has been an increasing demand for systems that generate aerosols by heating cigarettes or aerosol-generating substances using an aerosol-generating device rather than by burning the cigarette. Therefore, research on heated aerosol-generating devices is being actively conducted.

[0003] Recently, there has been an increasing demand for aerosol generating devices that include various components arranged in various ways inside an aerosol generating article and effectively heat the components. Therefore, research on methods for providing a user with uniform and high-quality aerosol by heating has been actively conducted. Summary of the invention

[0004] Technical issues

[0005] Embodiments according to the present disclosure may generate aerosol by heating an aerosol-generating article at a certain temperature without burning the aerosol-generating article having various components differently arranged therein, thereby providing the user with an optimal smoking experience.

[0006] Problems to be solved by the embodiments of the present disclosure are not limited to the above-mentioned problems, and unmentioned problems will be clearly understood by a person of ordinary skill in the art to which the embodiments pertain based on the specification and the accompanying drawings.

[0007] Technical solutions to the problem

[0008] According to one aspect of the present disclosure, an aerosol generating device includes a shell; a accommodating portion, which is located inside the shell and includes a accommodating space configured to accommodate at least a portion of an aerosol generating product; and a coil, which is arranged to surround at least one area of ​​an outer circumferential surface of the accommodating portion, and the coil is configured to generate an alternating magnetic field when power is supplied to the coil, wherein the coil includes: a first coil, which has a first resistance value; and a second coil, which is arranged to be spaced apart from the first coil in a first direction in which the accommodating portion extends, and the second coil has a second resistance value different from the first resistance value.

[0009] According to another aspect of the present disclosure, an aerosol generating system includes: an aerosol generating article, the aerosol generating article including a first medium part containing a first aerosol generating substance and a second medium part containing a second aerosol generating substance; a shell; a containing part, the containing part is located inside the shell and includes a containing space configured to contain at least a part of the aerosol generating article; a coil, the coil is arranged to surround at least one area of ​​the outer circumferential surface of the containing part, and the coil is configured to generate an alternating magnetic field when power is supplied to the coil; and a receptor, the receptor is configured to heat the aerosol generating article by generating heat in response to the alternating magnetic field generated by the coil, wherein the coil includes: a first coil, the first coil having a first resistance value; and a second coil, the second coil is arranged to be spaced apart from the first coil in a first direction in which the containing part extends, and the second coil has a second resistance value different from the first resistance value.

[0010] Beneficial Effects of the Invention

[0011] The aerosol generating device according to various embodiments of the present disclosure can improve both power efficiency and effective utilization of internal space.

[0012] The aerosol generating device according to various embodiments of the present disclosure may be controlled to uniformly maintain the quality of the aerosol. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a perspective view of an aerosol generating device according to an embodiment.

[0014] Figure 2 1 is an enlarged cross-sectional view showing a coil and a partial region of the coil of the aerosol generating device according to the embodiment.

[0015] 3A is an enlarged cross-sectional view showing a coil and a partial region of the coil of an aerosol generating device according to another embodiment.

[0016] FIG. 3B is a view schematically illustrating a coil of an aerosol generating device according to another embodiment.

[0017] Figure 4 is a view schematically showing an aerosol-generating article according to an embodiment.

[0018] FIG. 5A is a view showing an arrangement of coils according to an embodiment.

[0019] FIG. 5B is a view showing an arrangement of coils according to another embodiment.

[0020] FIG. 5C is a view showing an arrangement of coils according to another embodiment.

[0021] Figure 6 is a cross-sectional view showing the arrangement of coils according to the embodiment.

[0022] Figure 7 is a block diagram schematically illustrating components of an aerosol generating device according to an embodiment.

[0023] Figure 8 is a flow chart illustrating the operation of controlling the supply of power to a coil based on the type of aerosol-generating article housed in the aerosol-generating device, according to an embodiment.

[0024] Fig. 9 is a block diagram of an aerosol generating device according to another embodiment. DETAILED DESCRIPTION

[0025] Regarding the terms in each embodiment, considering the functions of the structural elements in each embodiment of the present disclosure, select the general terms that are currently widely used. However, the meaning of these terms can be changed according to intention, judicial precedents, the emergence of new technologies, etc. In addition, in some cases, the terms can be arbitrarily selected by the applicant in specific circumstances. In this case, the meaning of the term will be described in detail at the corresponding part in the description of the present disclosure. Therefore, the terms used in the various embodiments of the present disclosure should be defined based on the meaning of the terms and the description provided herein.

[0026] In addition, unless explicitly described to the contrary, the word "include" and variations such as "comprise" or "contain" will be understood to mean including the stated elements but not excluding any other elements. In addition, the terms "-device", "-component" and "module" described in this specification refer to units for processing at least one function and operation, and can be implemented by hardware components or software components and their combination.

[0027] As used herein, when a statement such as "at least any one" precedes an arrangement element, the statement modifies all elements rather than each arrangement element. For example, the statement "at least any one of a, b, and c" should be understood to include a, include b, include c, or include both a and b, include both a and c, include both b and c, or include all of a, b, and c.

[0028] In an embodiment, the aerosol generating device may be a device that generates aerosol by electrically heating a cigarette accommodated in an internal space of the aerosol generating device.

[0029] The aerosol generating device may comprise a heater. In an embodiment, the heater may be a resistive heater. For example, the heater may comprise a conductive track, and the heater may be heated when an electric current flows through the conductive track.

[0030] The heater may include a tubular heating element, a plate heating element, a needle heating element or a rod heating element, and may heat the inside or outside of the cigarette depending on the shape of the heating element.

[0031] The cigarette may include a tobacco rod and a filter rod. The tobacco rod may be formed by sheets, strands, and tiny fragments cut from tobacco sheets. In addition, the tobacco rod may be surrounded by a heat-conducting material. For example, the heat-conducting material may be, but is not limited to, a metal foil, such as an aluminum foil.

[0032] The filter rod may include a cellulose acetate filter. The filter rod may include at least one section. For example, the filter rod may include a first section configured to cool the aerosol and a second section configured to filter a specific component in the aerosol.

[0033] In another embodiment, the aerosol generating device may be a device that generates an aerosol by using a cartridge containing an aerosol generating substance.

[0034] The aerosol generating device may include a cartridge containing an aerosol generating substance and a main body supporting the cartridge. The cartridge may be detachably connected to the main body, but is not limited thereto. The cartridge may be formed as one body with the main body or assembled with the main body, or may be fixed to the main body so that the cartridge cannot be removed from the main body by the user. The cartridge may be mounted on the main body while containing the aerosol generating substance. However, the present disclosure is not limited thereto. The aerosol generating substance may also be injected into the cartridge when the cartridge is connected to the main body.

[0035] The cigarette cartridge may include an aerosol-generating substance in any of a variety of states, such as a liquid, solid, gaseous, gel, etc. The aerosol-generating substance may include a liquid composition. For example, the liquid composition may be a liquid including a tobacco-containing material having a volatile tobacco flavor component, or may be a liquid including a non-tobacco material.

[0036] The cartridge can be operated by an electrical signal or a wireless signal transmitted from the main body, thereby performing the function of generating an aerosol by converting the phase of the aerosol generating substance in the cartridge into a gas phase. Aerosol can refer to a gas of vaporized particles generated from the aerosol generating substance mixed with air.

[0037] In another embodiment, the aerosol generating device can generate an aerosol by heating a liquid composition, and the generated aerosol can be delivered to a user through a cigarette. In other words, the aerosol generated from the liquid composition can move along an airflow channel of the aerosol generating device, and the airflow channel can be configured to allow the aerosol to be delivered to a user by passing through a cigarette.

[0038] In another embodiment, the aerosol generating device may be a device that generates aerosol from an aerosol generating substance by using an ultrasonic vibration method. At this time, the ultrasonic vibration method may refer to a method of generating aerosol by converting an aerosol generating substance into an aerosol through ultrasonic vibration generated by a vibrator.

[0039] The aerosol generating device may include a vibrator, and a short-period vibration is generated by the vibrator to convert the aerosol generating substance into an aerosol. The vibration generated by the vibrator may be an ultrasonic vibration, and the frequency band of the ultrasonic vibration may be a frequency band of about 100 kHz to about 3.5 MHz, but is not limited thereto.

[0040] The aerosol generating device may further comprise a core that absorbs the aerosol generating substance.For example, the core may be arranged to surround at least one region of the vibrator, or may be arranged to be in contact with at least one region of the vibrator.

[0041] When a voltage (e.g., an AC voltage) is applied to the vibrator, heat and / or ultrasonic vibrations may be generated from the vibrator, and the heat and / or ultrasonic vibrations generated from the vibrator may be transmitted to the aerosol-generating substance absorbed in the core. The aerosol-generating substance absorbed in the core may be converted into a gas phase by the heat and / or ultrasonic vibrations transmitted from the vibrator, and thus an aerosol may be generated.

[0042] For example, the viscosity of the aerosol generating substance absorbed in the core may be reduced by heat generated by the vibrator, and when the aerosol generating substance having the reduced viscosity is granulated by ultrasonic vibration generated by the vibrator, aerosol may be generated, but is not limited thereto.

[0043] In another embodiment, the aerosol generating device is a device that generates an aerosol by heating an aerosol generating article housed in the aerosol generating device by induction heating.

[0044] The aerosol generating device may include a susceptor and a coil. In an embodiment, the coil may apply a magnetic field to the susceptor. When power is supplied from the aerosol generating device to the coil, a magnetic field may be formed inside the coil. In an embodiment, the susceptor may be a magnetic body that generates heat by an external magnetic field. When the susceptor is positioned in the coil and a magnetic field is applied to the susceptor, the susceptor generates heat to heat the aerosol generating article. In addition, optionally, the susceptor may be positioned inside the aerosol generating article.

[0045] In another embodiment, the aerosol generating device may further comprise a bracket.

[0046] The aerosol generating device may construct a system together with a separate cradle. For example, the cradle may charge a battery of the aerosol generating device. Alternatively, the heater may be heated when the cradle and the aerosol generating device are coupled to each other.

[0047] Hereinafter, the present disclosure will now be described more fully with reference to the accompanying drawings, in which exemplary embodiments of the present disclosure are shown, so that a person skilled in the art can easily implement the present disclosure. The present disclosure can be implemented in a form that can be implemented in the aerosol generating device of the various embodiments described above, or can be implemented in various different forms, and is not limited to the embodiments described herein.

[0048] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

[0049] Figure 1 is a perspective view of an aerosol generating device according to an embodiment.

[0050] Reference Figure 1 , the aerosol generating device 100 according to an embodiment may include a housing 110 forming an overall appearance of the aerosol generating device 100 and an accommodation portion 110i in at least one region of the housing 110 to accommodate an aerosol generating article.

[0051] The aerosol generating device 100 can contain an aerosol generating article (not shown) and generate an aerosol by heating the contained aerosol generating article. The aerosol generated by the aerosol generating device 100 can be supplied to the user through the user's inhalation behavior (or puffing behavior), and the user can smoke according to the process.

[0052] The housing 110 may include an accommodation space (or an inner space), and the components of the aerosol generating device 100 may be arranged in the accommodation space. The components of the aerosol generating device 100 may be arranged in the accommodation space of the housing 110.

[0053] For example, a heater for heating at least one area of ​​the aerosol-generating article accommodated in the accommodating portion 110i, a battery for supplying power to the heater, and a processor may be arranged in the accommodating space of the housing 110. The heater may include a coil for generating an alternating magnetic field and a susceptor for generating heat in response to the alternating magnetic field generated by the coil, but is not limited thereto.

[0054] In addition, the above-mentioned components are only one example of the components of the aerosol generating device 100 that can be arranged in the accommodation space of the housing 110, and the components of the aerosol generating device 100 that can be arranged in the accommodation space of the housing 110 are not limited thereto.

[0055] When the aerosol generating product is heated by the heating element, an aerosol may be generated in the accommodation space of the housing 110. The generated aerosol may be discharged to the outside of the aerosol generating device 100 or to an empty space between the aerosol generating product and the accommodation portion 100i through the aerosol generating product accommodated in the accommodation portion 100i, and the user may inhale the discharged aerosol.

[0056] Although the drawings only show an embodiment in which the housing 110 is formed as a semicircular cross section as a whole, the shape of the housing 110 is not limited thereto. According to an embodiment (not shown), the housing 110 may be formed to have a cylindrical shape as a whole, or may be formed to have a polygonal prism shape (e.g., a triangular prism shape or a rectangular prism shape).

[0057] The aerosol generating device 100 according to an embodiment may further include a display 120 arranged to be exposed in at least one area of ​​the outer surface of the housing 110. For example, the display 120 may be arranged to be exposed in at least one area through a cover glass on the outer surface of the housing 110.

[0058] The display 120 may include a display panel and a touch panel for receiving a touch input. For example, the display panel may include: a light emitting device (e.g., an organic light emitting diode (OLED) or a light emitting diode (LED)) for emitting light based on a scan line and a data line; and signals provided from the scan line and the data line. The touch panel may detect changes in electrical characteristics (e.g., capacitance, radio waves, etc.) according to a user's touch input, and may send position information of the detected changes to a processor.

[0059] The aerosol generating device 100 may provide various types of visual information to the user through the display 120. For example, the aerosol generating device 100 may display preheating and heating information, battery remaining amount information, time and date information, usage pattern information about the aerosol generating article, weather information, and Bluetooth connection information through the display 120. The information displayed through the display 120 is an example and is not limited to the above-described embodiments.

[0060] Figure 2 1 is an enlarged cross-sectional view showing a coil and a partial region of the coil of the aerosol generating device according to the embodiment.

[0061] Reference Figure 2 According to an embodiment of the aerosol generating device (eg, Figure 1 The aerosol generating device 100 may include a housing portion 200 and a coil 220 .

[0062] The accommodation portion 200 may include an accommodation space for accommodating the aerosol-generating article, and at least one region of the aerosol-generating article may be accommodated in the accommodation space.

[0063] The coil 220 may be arranged to surround at least one area of ​​the outer circumferential surface of the accommodating portion 200, and may generate an alternating magnetic field when power is supplied. Here, a susceptor (not shown) may be arranged inside the accommodating space of the accommodating portion 200 or in the aerosol generating article accommodated in the accommodating space, and may generate heat by the alternating magnetic field generated by the coil 220 to heat the aerosol generating article accommodated in the accommodating space of the accommodating portion 200. The heat generated by the susceptor may increase as the resistance value of the coil 220 decreases.

[0064] The coil 220 according to the embodiment may be implemented in a solenoid shape formed by being wound around the accommodating portion 200 in a first direction in which the accommodating portion 200 extends. When current is supplied to the coil 220 having the solenoid shape, the coil 220 may generate an alternating magnetic field in an internal space of the coil 220. The generated alternating magnetic field may pass through the accommodating portion 200, and when an aerosol generating article (not shown) is accommodated in the accommodating portion 200, the generated alternating magnetic field may pass through the aerosol generating article.

[0065] According to an embodiment, the wire 223 forming the coil 220 may include at least one of a conductor 231, an insulator 232, and a coupling body 233 from the inside of the wire. The conductor 231 may include a Litz wire formed by twisting strands of wire, and the coil 220 may be formed into a flat coil having a desired shape by the coupling body 233.

[0066] The Litz coil may be a coil formed by weaving about 10 to about 100 strands of Litz wire, which is a thin conductor having a diameter of about 0.1 mm and can increase its surface area from a physical point of view and improve frequency characteristics from an electrical point of view. Therefore, the effective resistance of the coil can be reduced by reducing the skin effect, and the heating efficiency of the coil can be improved according to the high-frequency alternating current.

[0067] The flat coil can have a larger coil cross-sectional area than the above-mentioned Litz coil, and thus its effective resistance can be reduced. In addition, the flat coil can be a single coil, and thus the distance between adjacent wires can be reduced.

[0068] Therefore, the coil 220 in which the Litz coil is formed as a flat coil can reduce the effective resistance of the coil to improve the heating efficiency of the coil 220, while miniaturizing the aerosol generating device by effectively utilizing space.

[0069] The insulator 232 may be formed on the outer surface of the conductor 231 coaxially with the conductor 231. When the wire 223 forming the coil 220 includes the conductor 231 and the insulator 232 and does not include the coupling body 233, production costs may be reduced. However, the coupling body 233 may fix the coil 220 into a desired shape.

[0070] When the conductor 231 is wound in a desired shape while the combined body 233 is heat-treated, bonding can occur between the wires, and thus the coil 220 can be fixed in a desired shape. The heat treatment temperature may be less than or equal to the heat resistance temperature of each of the conductor 231 and the insulator 232 and greater than or equal to the heat resistance temperature of the combined body 233.

[0071] When bonding occurs between wires by performing heat treatment on the bonding body 233, the bonding body 233 may be melted, thereby minimizing the gap between the conductive wires 223 forming the coil 220. The distance between the conductive wires 223 may be reduced, and thus, the accommodation space of the aerosol generating device may be effectively used.

[0072] The combination 233 may include at least one of polyamide, polyvinyl butyral and polyimide. In an example, the combination 233 may include a polyamide having high adhesion and a high melting point due to hydrogen bonding. In another example, the combination 233 may include polyvinyl butyral, which may have high adhesion and may be produced as a thermosetting material, and may therefore be suitable for fixing the coil 220 to a desired shape. In another example, the combination 233 may include polyimide, which may have high heat resistance to reduce the possibility of phase change in the combination 233, with little change in characteristics over a wide temperature range, and with high electrical characteristics.

[0073] The inductance value of the coil 220 may be proportional to the number of turns of wire per unit length, as shown in Equation 1.

[0074] [Equation 1]

[0075] L=μ0n 2 ia

[0076] In Equation 1, μ0 represents magnetic permeability in a vacuum, n represents the number of turns of the wire per unit length, l represents the length of the coil 220 , and A represents the cross-sectional area of ​​the coil 220 .

[0077] The electromotive force generated by the coil 220 when the alternating current is supplied may be proportional to the inductance value of the coil 220 , as shown in Equation 2.

[0078] [Equation 2]

[0079]

[0080] In Equation 2, V refers to the electromotive force, L refers to the inductance of the coil 220, and Refers to the time rate of change of the supplied alternating current. Therefore, when the number of turns n per unit length of the wire, the length I of the coil 220, and the cross-sectional area A of the coil 220 (specifically, the cross-sectional area of ​​the coil 220 perpendicular to the longitudinal direction) are larger, the inductance value can be increased, and therefore, the electrical efficiency of the coil 220 can be improved.

[0081] According to an embodiment, the coil 220 formed as a flat coil may include a circular coil section 230. However, the coil section 230 is not limited thereto, and the coil section 230 included in the coil 220 formed as a flat coil may be triangular or rectangular.

[0082] According to the shape of the coil cross section 230 included in the coil 220 formed as a flat coil, the number of turns of the coil 220 per unit length may vary, and the inductance value of the coil 220 may vary. The inductance value of the coil 220 may be controlled by changing the shape, size, number, etc. of the coil cross section 230 included in the coil 220 formed as a flat coil.

[0083] The coil 220 having a solenoid shape may include one conductive wire 223 , and may have a pair of power supply lines 221 and 222 at both ends of the coil 220 .

[0084] Fig. 3A is an enlarged cross-sectional view showing a coil of an aerosol generating device according to another embodiment and a partial region of the coil. Fig. 3B is a diagram schematically showing a coil of an aerosol generating device according to another embodiment.

[0085] The coil 320 having a spiral shape as shown in FIG. 3A and FIG. 3B may be different from the coil 320 in addition to its shape and arrangement changes. Figure 2 The coil 220 having a spiral shape shown is the same or similar, so the same description thereof is omitted below.

[0086] 3A and 3B , the coil 320 may be arranged to surround at least one area of ​​the outer circumferential surface of the accommodating portion 300. The coil 320 according to the embodiment may be implemented in a spiral shape wound around a central axis extending in a second direction that intersects the first direction in which the accommodating portion 300 extends.

[0087] In detail, when current is supplied to the coil 320 shown in FIGS. 3A and 3B , the coil 320 may generate an alternating magnetic field in the accommodation space of the accommodation portion 300, and the wire 323 forming the coil 320 shown in FIGS. 3A and 3B may generate an alternating magnetic field in the accommodation space of the accommodation portion 300. The coil 320 shown in FIGS. 3A and 3B may include at least one of a conductor 331, an insulator 332, and a coupling body 333 from the inside thereof, and when the coil 320 shown in FIGS. 3A and 3B is formed as a flat coil, the coil 320 may include a circular coil cross section 330.

[0088] According to an embodiment, the coil 320 may be wound into a shape with a diameter gradually increasing relative to a central axis arranged at a point on the outer circumferential surface of the accommodation portion 300. The coil 320 may form a curved surface and may be arranged so that the curved surface surrounds an area of ​​the outer circumferential surface of the accommodation portion 300.

[0089] The coil 320 may be wound around central axes spaced apart from each other at a plurality of points on the outer circumferential surface of the accommodation portion 300. For example, the coil 320 shown in FIG. 3A may be implemented as two spiral coils 320 formed by winding around two central axes spaced apart from each other at two points on the outer circumferential surface of the accommodation portion 300.

[0090] In addition, the coil 320 may be implemented as a spiral coil 320 formed by winding in a circular shape around a plurality of center axes spaced apart from each other, respectively. However, the number, size or shape of the spiral coil 320 is not limited to the above description and may be modified as needed.

[0091] When current is supplied to the coil 320, the magnetic field generated follows Ampere's law. The direction of the net magnetic field generated according to the arrangement of the coil 320 shown in FIGS. 3A and 3B may be a second direction intersecting the direction in which the accommodating portion 300 extends. Figure 2 The direction of the net magnetic field generated by the arrangement of the coils 220 shown may be the direction in which the receiving portion 200 extends, ie, the first direction.

[0092] Specifically, in terms of the density of the magnetic field passing through the accommodating portion 300 and the aerosol generating substance (not shown) accommodated therein, the magnetic field generated by the coil 320 having the solenoid shape shown in FIGS. 3A and 3B is greater than that generated by the coil 320 having the solenoid shape shown in FIGS. Figure 2 The magnetic field generated by the spiral coil 220 shown in FIG. 3A to FIG. 3B may have a greater density than that generated by the spiral coil 220. Therefore, the heating efficiency of the spiral coil 320 shown in FIG. 3A to FIG. 3B may be better than that of the spiral coil 320. Figure 2 The heating efficiency of the solenoid shaped coil 220 is shown.

[0093] 3A and 3B , the spiral coils 320 may each have the same size and shape and may be connected to each other through a coil connection portion 324. The coil 320 may include one wire 323 and thus may have a pair of power supply lines 321 and 322 at both ends of the wire 323.

[0094] 3B , the coil 320 may be implemented as four spiral coils 320 formed by being respectively wound around four center axes spaced apart from each other at four points on the outer circumferential surface of the accommodating portion 300. Two pairs of four spiral coils 320 may be arranged symmetrically to each other around the accommodating portion 300, and according to Ampere's law, the ratio of magnetic fields offset by the arrangement of the spiral coils 320 may be minimized.

[0095] 3B, the coil support portion 340 may be arranged to protrude from at least one area of ​​the outer circumferential surface of the accommodating portion 300 toward the outside of the accommodating portion 300, but is not limited thereto. In addition, the coil 320 may be implemented as a spiral coil 320 wound in a circular shape around each coil support portion 340 supporting each spiral coil 320. However, even when the coil support portion 340 does not support the coil 320, the coil support portion 340 may perform a function of indicating the position of the central axis around which the coil 320 is wound.

[0096] Figure 4 is a view schematically showing an aerosol-generating article according to an embodiment.

[0097] refer to Figure 4 , the aerosol generating article 400 may include a first media portion 410 , a second media portion 420 , a cooling portion 430 and a filter portion 440 .

[0098] In the aerosol-generating article 400 according to an embodiment, the first medium portion 410 may include a material for generating aerosol, and the second medium portion 420 may include nicotine.

[0099] For example, the first medium portion 410 may include at least one of glycerin, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol, but is not limited thereto. In addition, the first medium portion 410 may not include nicotine.

[0100] For example, the second media portion 420 may be formed as pipe tobacco formed from tiny pieces cut from tobacco sheets. As another example, the second media portion 420 may include a material in which pipe tobacco and reconstituted tobacco sheets are mixed at a ratio of about 4:1, but is not limited to the above mixing ratio.

[0101] An aerosol generating article (not shown) according to another embodiment may be the same as or similar to the aerosol generating article 400 according to the embodiment except that only the second medium portion (not shown) thereof is changed, and therefore, the same description thereof is omitted below.

[0102] For example, the second medium portion may be a rolled sheet impregnated with a nicotine solution. The rolled sheet may be a paper sheet that does not generate odor due to heat even when heated at a high temperature, but is not limited thereto.

[0103] An aerosol generating article (not shown) according to another embodiment may be the same as or similar to the aerosol generating article 400 according to the embodiment except that its second medium portion (not shown) is changed, and thus the same description is omitted below.

[0104] For example, the second media portion may include a plurality of tobacco particles. The tobacco particles may refer to spherical particles including tobacco material. The plurality of tobacco particles may be buried between the filter materials. The second media portion may include a paper sheet, and the plurality of tobacco particles may be uniformly dispersed inside the paper of the winding sheet, but is not limited thereto.

[0105] The cooling portion 430 can provide the user with an aerosol cooled to an appropriate temperature by generating an effect of lowering the temperature of the generated aerosol. For example, the cooling portion 430 may include cellulose acetate and may be a tubular structure including a hollow portion. However, the cooling portion 430 is not limited to the above examples and may include, but is not limited to, any cooling portion that can generate an effect of cooling the aerosol.

[0106] The filter portion 440 may include at least one capsule. For example, the capsule may include flavoring liquid, and the flavoring liquid leaked when the capsule is crushed may generate a flavor, but the present disclosure is not limited thereto.

[0107] The aerosol-generating article 400 may further comprise a wrapper 450 surrounding the outer circumferential surface of the aerosol-generating article 400. The wrapper 450 may comprise individual wrappers (not shown) surrounding the outer circumferential surface of each segment or an outer wrapper (not shown) surrounding the entire outer circumferential surface of the aerosol-generating article 400.

[0108] The aerosol-generating article 400 may also include a susceptor (not shown) therein.

[0109] The susceptor according to the embodiment may be included in the second medium portion 420. For example, the susceptor may be formed in the form of a sheet or strand, or may be dispersed and arranged in the second medium portion 420 in the form of fine particles.

[0110] A susceptor according to another embodiment may be included inside the package 450 surrounding at least a portion of the outer circumferential surface of the second dielectric portion 420. The susceptor may include a metal film. When the susceptor includes a thinly laid metal film, the heat generation efficiency of the susceptor can be maximized compared to the mass of the susceptor, and thus, the heating efficiency of the susceptor can be improved. In addition, the heat generation efficiency of the susceptor can be maximized compared to the volume of the susceptor, and thus, the internal space of the aerosol generating device (not shown) can be effectively used. The metal film may be an aluminum film, but is not limited thereto.

[0111] Fig. 5A is a view showing the arrangement of coils according to an embodiment. Fig. 5B is a view showing the arrangement of coils according to another embodiment. Fig. 5C is a view showing the arrangement of coils according to another embodiment.

[0112] According to an embodiment, an aerosol generating device (e.g., Figure 1 The aerosol generating device 100 may include a receiving portion 500 and a coil 520, 540 or 560. At least one component of the aerosol generating device may be connected to Figure 2 At least one component of the aerosol generating devices shown in FIG. 3A and FIG. 3B is the same or similar, and thus the same description is omitted below.

[0113] 5A , in one example, the coil 520 may include a solenoid-shaped coil in which one or more Litz coils are formed as a flat coil, and the coil 520 may be arranged to surround at least one region of an outer circumferential surface of the accommodation portion 500 .

[0114] According to an embodiment, the Litz coil can be formed as a flat coil to arrange a solenoid-shaped coil 521 having a first resistance value, and the Litz coil can be formed as a flat coil to arrange a solenoid-shaped coil 522 having a second resistance value different from the first resistance value so as to be spaced apart from the coil 521 in the first direction in which the accommodating portion 500 extends.

[0115] 5B , in another example, the coil 540 may include a spiral coil in which one or more Litz coils are formed as a flat coil, and the coil 540 may be arranged to surround at least one region of the outer circumferential surface of the accommodation portion 500 .

[0116] According to another embodiment, the Litz coil can be formed as a flat coil to arrange a spiral coil 541 having a first resistance value, and the Litz coil can be formed as a flat coil to arrange a spiral coil 542 having a second resistance value different from the first resistance value to be spaced apart from the coil 541 in the first direction in which the accommodating portion 500 extends.

[0117] 5C , in another example, the coil 560 may include a solenoid-shaped coil in which one or more Litz coils are formed as a flat coil and a spiral coil in which one or more Litz coils are formed as a flat coil, and the coil 560 may be arranged around at least one area of ​​the outer circumferential surface of the accommodating portion 500 .

[0118] According to another embodiment, the Litz coil can be formed as a flat coil to arrange a solenoid-shaped coil 561 having a first resistance value, and the Litz coil can be formed as a flat coil to arrange a spiral coil 562 having a second resistance value different from the first resistance value to be spaced apart from the coil 561 in the first direction in which the accommodating portion 500 extends.

[0119] According to an embodiment of the aerosol generating article (e.g., Figure 4 The aerosol generating article 400 may include a first medium portion (e.g., Figure 4 The first dielectric portion 410 and the second dielectric portion (eg, Figure 4 The first medium portion includes a material for generating smoke, and the second medium portion includes nicotine. By heating each section differently, the quality of the aerosol provided to the user can be different. In the present disclosure, the quality of the aerosol may refer to the amount of aerosol generated and / or the amount of fragrance that the user can feel when inhaling the aerosol, and the corresponding expressions may be used with the same meaning below.

[0120] For example, when the first media portion 410 is heated relatively more than the second media portion 420, the amount of aerosol generated provided to the user will increase, and when the second media portion 420 is heated relatively more than the first media portion 410, the amount of fragrance per unit volume of the aerosol provided to the user can increase.

[0121] An aerosol generating system according to embodiments may include an aerosol generating article and an aerosol generating device.

[0122] Aerosol-generating products can be used with Figure 4 The aerosol generating article 400 shown is the same or similar, so the same description is omitted below. For example, the aerosol generating device may include at least one coil that is the same or similar to the coils 520, 540, and 560 shown in Figures 5A, 5B, and 5C, respectively, so the same description is omitted below.

[0123] The aerosol generating device may further include a battery, a processor for controlling power supplied from the battery to the coil, a susceptor for generating heat by a magnetic field generated by the coil when power is supplied to the coil, a sensor for detecting the type of aerosol generating article, a memory storing a temperature profile that allows the processor to supply power according to the type of aerosol generating article, etc. The components of the aerosol generating device are merely examples, but are not limited thereto.

[0124] A coil in which the Litz coil is formed as a flat coil (e.g., coil 520, 540, or 560 of FIG. 5A, 5B, or 5C) can reduce its effective resistance to improve the heating efficiency of the coil while miniaturizing the aerosol generating device by effectively utilizing space.

[0125] According to the shape of the coil cross section (not shown) included in the coil in which the Litz coil is formed as a flat coil, the number of turns of the coil per unit length can be changed, and the inductance value of the coil can be changed. The inductance value of the coil (e.g., coil 521, 522, 541, 542, 561, or 562 of FIG. 5A, FIG. 5B, or FIG. 5C) can be controlled by changing the shape, size, or number of the coil cross section included in the coil in which the Litz coil is formed as a flat coil.

[0126] Relative to the density of the magnetic field passing through the accommodating portion 500 and the aerosol generating article (not shown) accommodated therein, the magnetic field generated by a solenoid-shaped coil (e.g., coil 521, 522, or 561 of FIG. 5A or 5C) can have a greater density than the magnetic field generated by a spiral coil (e.g., 541, 542, or 562 of FIG. 5B or 5C), and therefore, the magnitude of the desired magnetic field density can be controlled.

[0127] According to an embodiment, an aerosol generating device can simultaneously promote power efficiency and miniaturization of the device by arranging a coil in which the Leeds coil is formed as a flat coil, and at the same time expand the range of controlling aerosol quality by arranging two coils having solenoid shapes and / or spiral shapes with different resistance values ​​to surround the outer circumferential surface of the first medium part or the second medium part.

[0128] Figure 6 is a cross-sectional view showing the arrangement of coils according to the embodiment.

[0129] According to an embodiment, an aerosol generating device (e.g., Figure 1 The aerosol generating device 100 may include a receiving portion (e.g., Figure 1 The aerosol generating device may include a receiving portion 100i) and coils 620, 640, 660 and 680. At least one component of the aerosol generating device may be connected to Figure 2At least one component of the aerosol generating devices shown in FIG. 3A , FIG. 3B and FIG. 5A to FIG. 5C is the same or similar, and thus the same description thereof is omitted below.

[0130] Reference Figure 6 According to an embodiment, the first coil 624 may include coils 620 and 640 in which one or more Litz coils are formed as flat coils, and the first coil 624 may be arranged to surround at least one area of ​​the outer circumferential surface of the accommodating portion 600. The coil 620 of the first coil 624 may be electrically connected to the coil 640 of the first coil 624.

[0131] The second coil 668 may include coils 660 and 680 in which one or more Litz coils are formed as flat coils, and the second coil 668 may be arranged to surround at least one area of ​​the outer circumferential surface of the accommodation portion 600. The coil 660 of the second coil 668 may be electrically connected to the coil 680 of the second coil 668.

[0132] The first coil 624 having a first resistance value may be arranged in a region of the outer circumferential surface of the accommodating portion 600 to heat the second medium portion (eg, Figure 4 The second dielectric portion 420 of the accommodating portion 600 may be provided with a second coil 668 having a second resistance value different from the first resistance value, and may be arranged in another area of ​​the outer circumferential surface of the accommodating portion 600 to heat the first dielectric portion (eg, Figure 4 of the first dielectric portion 410).

[0133] According to an embodiment, the first coil 624 may include a coil 620 including a coil section 621 and a coil 640 including a coil section 641 , and the second coil 668 may include a coil 660 and a coil 680 including a coil section 661 and a coil 680 including a coil section 681 .

[0134] For example, coil 620 may include three larger circular coil sections 621, and coil 640 may include four smaller circular coil sections 641. In addition, coil 660 may include five triangular coil sections 661, and coil 680 may include three rectangular coil sections 681. In addition, each of coils 620, 640, 660, and 680 may be a solenoid-shaped coil and / or a spiral coil.

[0135] The above description is only an example and can be modified within the scope understood by a person of ordinary skill in the art to appropriately control the quality of the aerosol while improving the power efficiency and miniaturization of the device.

[0136] Figure 7is a block diagram schematically illustrating components of an aerosol generating device according to an embodiment. Figure 7 The aerosol generating device 700 shown may be Figure 1 An embodiment of an aerosol generating device 100 is shown.

[0137] Reference Figure 7 According to an embodiment, the aerosol generating device 700 may include a processor 710, a battery 720, a coil 730, a heating element 740, a sensor 750, and a memory 760. However, the above components are examples of the aerosol generating device 700, and the components of the aerosol generating device 700 are not limited to Figure 7 Parts shown.

[0138] The processor 710 may be electrically or operatively connected to the battery 720, the coil 730, the heating element 740, the sensor 750, and / or the memory 760 to control the overall operation of the aerosol generating device 700. When power is supplied from the battery 720 to the coil 730 under the control of the processor 710, the coil 730 may generate an alternating magnetic field, and the heating element 740 may heat an aerosol generating article (not shown) by the generated magnetic field.

[0139] The sensor 750 may be an inductive sensor for detecting the type of aerosol generating article housed in the aerosol generating device 700. The processor 710 may detect changes in electrical characteristics inside the housing portion via the sensor 750, and the processor 710 may detect the housing portion (e.g., Figure 1 For example, the processor 710 may detect the type of aerosol-generating article contained in the housing portion 100i of the aerosol-generating article. Figure 4 The first dielectric portion 410 and the second dielectric portion (eg, Figure 4 The type of aerosol generating article is determined by the combination of the second media portion 420).

[0140] The processor 710 may detect the type of aerosol-generating article housed in the aerosol-generating device 700 via the sensor 750, and display a display (eg, Figure 1 The display 120) outputs a user interface (UI) indicating the type of aerosol generating article.

[0141] The processor 710 may control the power supplied from the battery 720 to the coil 730 based on the detected type of aerosol-generating article, and may thus adjust the temperature profile by which the heating element 740 may generate heat to heat the aerosol-generating article. The memory 760 may store data about the temperature profile corresponding to the type of aerosol-generating article housed.

[0142] 5A to 5C described above, by arranging the coil in which the Litz coil is formed as a flat coil, the power efficiency and miniaturization of the device can be simultaneously promoted. In addition, by arranging two coils having a solenoid shape and / or a spiral shape having different resistance values ​​around the outer circumferential surface of the first medium portion and the second medium portion, the range for controlling the aerosol mass can be expanded.

[0143] Therefore, the aerosol generating device 700 can uniformly maintain the aerosol quality of various types of aerosol generating products in an optimal state according to the temperature curve determined according to the type of aerosol generating product, simply by executing the operation of the processor 710 according to the power supplied from the battery 720 to the coil 730.

[0144] Figure 8 is a flow chart illustrating an operation of controlling the power supply to the coil based on the type of aerosol generating article housed in the aerosol generating device according to an embodiment. Figures 1 to 7 The operation of the aerosol generating device for controlling the power supply is described with reference to the components of the aerosol generating device shown in FIG.

[0145] Reference Figure 8 In operation 801, a processor of an aerosol generating device (e.g., Figure 7 The processor 710) can be connected via the sensor ( Figure 7 The sensor 750) detects the container contained in the containing portion (e.g., Figure 1 For example, the processor may detect changes in electrical properties inside the accommodating portion via a sensor, and the changes in electrical properties may be detected differently depending on the type of aerosol-generating product accommodated in the accommodating portion to detect the type of aerosol-generating product accommodated in the accommodating portion.

[0146] In operation 802 , the processor may determine whether a first aerosol-generating article is housed.

[0147] When it is determined in operation 802 that the first aerosol-generating article is housed in the housing portion of the aerosol-generating device, in operation 803, the processor may allow the battery (e.g., Figure 7 The battery 720) supplies the first power to the coil (eg, Figure 7The coil 730) causes the heating element (e.g., Figure 7 The heating element 740) generates heat according to the first temperature curve. Therefore, the aerosol generating device can maintain the aerosol quality of the first aerosol generating product in an optimal state.

[0148] In contrast, when it is determined in operation 802 that the first aerosol-generating article is not housed in the housing portion of the aerosol-generating device, in operation 804 the processor may determine whether the second aerosol-generating article is housed.

[0149] When it is determined in operation 804 that the second aerosol-generating article is accommodated in the accommodation portion of the aerosol-generating device, the processor may allow the battery to supply a second power to the coil so that the heating element generates heat according to a second temperature profile in operation 805. Thus, the aerosol-generating device may maintain the aerosol quality of the second aerosol-generating article in an optimal state.

[0150] Although not shown in the drawings, the processor may determine whether to accommodate the third aerosol-generating product when it is determined in operation 804 that the second aerosol-generating product is not accommodated in the accommodation portion of the aerosol-generating device. Here, when it is determined that the third aerosol-generating product is accommodated in the accommodation portion of the aerosol-generating device, the processor may allow the battery to supply the third power to the coil so that the heating element generates heat according to the third temperature curve, and the aerosol-generating device may maintain the aerosol quality of the third aerosol-generating product in an optimal state.

[0151] Fig. 9 is a block diagram of an aerosol generating device 900 according to another embodiment.

[0152] The aerosol generating device 900 may include a controller 910, a sensing unit 920, an output unit 930, a battery 940, a heater 950, a user input unit 960, a memory 970, and a communication unit 980. However, the internal structure of the aerosol generating device 900 is not limited to Fig. 9 That is, according to the design of the aerosol generating device 900, a person skilled in the art will understand that the aerosol generating device 900 may be omitted. Fig. 9 Some of the components shown in or new components may be added.

[0153] The sensing unit 920 can sense the state of the aerosol generating device 900 and the state around the aerosol generating device 900, and transmit the sensed information to the controller 910. Based on the sensed information, the controller 910 can control the aerosol generating device 900 to perform various functions, such as controlling the operation of the heater 950, restricting smoking, determining whether an aerosol generating article (e.g., a cigarette, a cartridge, etc.) is inserted, displaying a notification, etc.

[0154] The sensing unit 920 may include at least one of a temperature sensor 922, an insertion detection sensor 924, and a suction sensor 926, but is not limited thereto.

[0155] The temperature sensor 922 can sense the temperature to which the heater 950 (or the aerosol generating substance) is heated. The aerosol generating device 900 can include a separate temperature sensor for sensing the temperature of the heater 950, or the heater 950 can be used as a temperature sensor. Alternatively, the temperature sensor 922 can also be arranged around the battery 940 to monitor the temperature of the battery 940.

[0156] The insertion detection sensor 924 may sense the insertion and / or removal of the aerosol generating article. For example, the insertion detection sensor 924 may include at least one of a film sensor, a pressure sensor, an optical sensor, a resistive sensor, a capacitive sensor, an inductive sensor, and an infrared sensor, and may sense a signal change according to the insertion and / or removal of the aerosol generating article.

[0157] The suction sensor 926 can sense the user's suction based on various physical changes in the airflow channel or airflow path. For example, the suction sensor 926 can sense the user's suction based on any one of temperature change, flow change, voltage change and pressure change.

[0158] The sensing unit 920 may include at least one of a temperature / humidity sensor, an air pressure sensor, a magnetic sensor, an acceleration sensor, a gyro sensor, a position sensor (e.g., a global positioning system (GPS)), a proximity sensor, and a red, green, and blue (RGB) sensor (illuminance sensor) in addition to the above-mentioned temperature sensor 922, the insertion detection sensor 924, and the suction sensor 926. Since a person of ordinary skill in the art can intuitively infer the function of each sensor from the sensor name, a detailed explanation may be omitted.

[0159] The output unit 930 may output information about the state of the aerosol generating device 900 and provide the information to the user. The output unit 930 may include at least one of a display unit 932, a tactile unit 934, and a sound output unit 936, but is not limited thereto. When the display unit 932 and the touch pad form a layered structure to form a touch screen, the display unit 932 may be used as an input device in addition to being used as an output device.

[0160] The display unit 932 may provide information about the aerosol generating device 900 to the user in a visual manner. For example, the information about the aerosol generating device 900 may refer to various information, such as the charging / discharging state of the battery 940 of the aerosol generating device 900, the preheating state of the heater 950, the insertion / removal state of the aerosol generating article, or the state in which the use of the aerosol generating device 900 is restricted (e.g., sensing an abnormal object), etc., and the display unit 932 may output the information to the outside. The display unit 932 may be, for example, a liquid crystal display panel (LCD), an organic light emitting diode (OLED) display panel, etc. The tactile unit 934 may provide information about the aerosol generating device 900 to the user in a tactile manner by converting an electrical signal into a mechanical stimulus or an electrical stimulus. For example, the tactile unit 934 may include a motor, a piezoelectric element, or an electrical stimulation device.

[0161] The haptic unit 934 may provide the user with information about the aerosol generating device 900 in a tactile manner by converting an electrical signal into a mechanical stimulation or an electrical stimulation. For example, the haptic unit 934 may include a motor, a piezoelectric element, or an electrical stimulation device.

[0162] The sound output unit 936 may audibly provide the user with information about the aerosol generating device 900. For example, the sound output unit 936 may convert an electrical signal into a sound signal and output the sound signal to the outside.

[0163] The battery 940 may supply power for operating the aerosol generating device 900. The battery 940 may supply power so that the heater 950 may be heated. In addition, the battery 940 may supply power required for the operation of other components (e.g., the sensing unit 920, the output unit 930, the user input unit 960, the memory 970, and the communication unit 980) in the aerosol generating device 900. The battery 940 may be a rechargeable battery or a disposable battery. For example, the battery 940 may be a lithium polymer (LiPoly) battery, but is not limited thereto.

[0164] The heater 950 may receive power from the battery 940 to heat the aerosol generating substance. Fig. 9 Although not illustrated in the figure, the aerosol generating device 900 may further include a power conversion circuit (e.g., a direct current (DC) / DC converter) that converts the power of the battery 940 and supplies the converted power to the heater 950. In addition, when the aerosol generating device 900 generates aerosol by an induction heating method, the aerosol generating device 900 may further include a DC / alternating current (AC) that converts the DC power of the battery 940 into AC power.

[0165] The controller 910, the sensing unit 920, the output unit 930, the user input unit 960, the memory 970, and the communication unit 980 may each receive power from the battery 940 to perform functions. Fig. 9 Although not illustrated in the figure, the aerosol generating device 900 may further include a power conversion circuit that converts the power of the battery 940 to supply power to the corresponding components, such as a low dropout (LDO) circuit or a voltage regulator circuit.

[0166] In one embodiment, the heater 950 may be formed of any suitable resistive material. For example, suitable resistive materials may be metals or metal alloys including, but not limited to, titanium, zirconium, tantalum, platinum, nickel, cobalt, chromium, hafnium, niobium, molybdenum, tungsten, tin, gallium, manganese, iron, copper, stainless steel, nickel-chromium, etc. In addition, the heater 950 may be implemented by metal wires, metal plates arranged with conductive tracks, ceramic heating elements, etc., but not limited thereto.

[0167] In another embodiment, the heater 950 may be an induction heating type heater. For example, the heater 950 may include a susceptor that generates heat by a magnetic field applied by a coil to heat the aerosol generating substance.

[0168] The user input unit 960 may receive information input from the user or may output information to the user. For example, the user input unit 960 may include a keyboard, a spring switch, a touch pad (contact capacitance method, pressure-resistant film method, infrared sensing method, surface ultrasonic conduction method, overall tension measurement method, piezoelectric effect method, etc.), a jog wheel, a jog switch, etc., but is not limited thereto. Fig. 9 Although not illustrated in the figure, the aerosol generating device 900 may further include a connection interface, such as a universal serial bus (USB) interface, and may be connected to other external devices through the connection interface, such as a USB interface, to send and receive information, or to charge the battery 940.

[0169] The memory 970 is a hardware component for storing various types of data processed in the aerosol generating device 900, and can store data processed by the controller 910 and data to be processed. The memory 970 may include at least one type of storage medium: a flash memory type memory, a hard disk type memory, a multimedia card micro type memory, a card type memory (such as a secure digital (SD) or extreme digital (XD) memory, etc.), a random access memory (RAM), a static random access memory (SRAM), a read-only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a programmable read-only memory (PROM), a magnetic memory, a magnetic disk, and an optical disk. The memory 970 may store the operating time of the aerosol generating device 900, the maximum number of puffs, the current number of puffs, at least one temperature curve, user smoking pattern data, etc.

[0170] The communication unit 980 may include at least one component for communicating with another electronic device. For example, the communication unit 980 may include a short-range wireless communication unit 982 and a wireless communication unit 984 .

[0171] The short-range wireless communication unit 982 may include a Bluetooth communication unit, a Bluetooth low energy (BLE) communication unit, a near field communication unit, a wireless LAN (WLAN) (Wi-Fi) communication unit, a Zigbee communication unit, an infrared data association (IrDA) communication unit, a Wi-Fi Direct (WFD) communication unit, an ultra-wideband (UWB) communication unit, an Ant+ communication unit, etc., but is not limited thereto.

[0172] The wireless communication unit 984 may include, but is not limited to, a cellular network communication unit, an Internet communication unit, a computer network (e.g., a local area network (LAN) or a wide area network (WAN)) communication unit, etc. The wireless communication unit 984 may also identify and authenticate the aerosol generating device 900 in the communication network by using subscriber information (e.g., an International Mobile Subscriber Identity (IMSI)).

[0173] The controller 910 may control the general operation of the aerosol generating device 900. In one embodiment, the controller 910 may include at least one processor. The processor may be implemented as an array of multiple logic gates, or may be implemented as a combination of a general-purpose microprocessor and a memory storing a program that can be executed in the microprocessor. It will be understood by those of ordinary skill in the art that the processor may be implemented in other forms of hardware.

[0174] The controller 910 may control the temperature of the heater 950 by controlling the power supply of the battery 940 to the heater 950. For example, the controller 910 may control the power supply by controlling the on-off of an on-off element between the battery 940 and the heater 950. The controller 910 may analyze the result sensed by the sensing unit 920 and control a subsequent process to be performed.

[0175] The controller 910 may analyze the result sensed by the sensing unit 920 and control a subsequent process to be performed. For example, the controller 910 may control the power supplied to the heater 950 based on the result sensed by the sensing unit 920 to start or end the operation of the heater 950. As another example, the controller 910 may control the amount of power supplied to the heater 950 and the time of supplying the power based on the result sensed by the sensing unit 920 so that the heater 950 can be heated to a certain temperature or maintained at an appropriate temperature.

[0176] The controller 910 may control the output unit 930 according to the result sensed by the sensing unit 920. For example, when the number of puffs counted by the puff sensor 926 reaches a preset number, the controller 910 may notify the user through at least one of the display unit 932, the tactile unit 934, and the sound output unit 936 that the aerosol generating device 900 is about to end.

[0177] An embodiment can also be implemented in the form of a computer-readable recording medium, which includes instructions that can be executed by a computer, such as a program module that can be executed by a computer. The computer-readable recording medium can be any available medium that can be accessed by a computer and includes volatile media and non-volatile media and removable media and non-removable media. In addition, the computer-readable recording medium may include computer storage media and communication media. Computer storage media includes all volatile media and non-volatile media and removable media and non-removable media for storing information implemented by any method or technology, such as computer-readable instructions, data structures, program modules or other data. Communication media typically include computer-readable instructions, data structures, other data in modulated data signals such as program modules, or other transmission mechanisms, and include any information transfer media.

[0178] The description of the above embodiments is merely an example, and it will be understood by those skilled in the art that various changes and equivalents may be made to the above embodiments. Therefore, the scope of the present disclosure shall be defined by the appended claims, and all differences within the scope equivalent to the scope described in the claims shall be interpreted as being included within the scope of protection defined by the claims.

Claims

1. An aerosol generating device, comprising: case; a housing portion, the housing portion being located inside the housing and comprising a housing space configured to house at least a portion of an aerosol-generating article; as well as A coil, the coil being arranged to surround at least one area of ​​the outer circumferential surface of the accommodating portion, and the coil being configured to generate an alternating magnetic field when power is supplied to the coil, wherein the coil comprises: a first coil having a first resistance value; and a second coil, the second coil being arranged to be spaced apart from the first coil in a first direction in which the accommodating portion extends, and the second coil having a second resistance value different from the first resistance value.

2. The aerosol generating device according to claim 1, wherein: When the first coil or the second coil is cut along a plane passing through each of the first direction and a second direction crossing the first direction, the first coil or the second coil has a cross section extending along the first direction.

3. The aerosol generating device according to claim 1, wherein: The first coil or the second coil includes a conductor, an insulator, and a combining body, and the conductor includes a Litz wire formed by twisting strands of wire.

4. The aerosol generating device according to claim 3, wherein: The combination includes at least one of polyamide, polyvinyl butyral and polyimide.

5. The aerosol generating device according to claim 1, wherein: The first coil or the second coil is wound around a central axis extending in a second direction intersecting the first direction.

6. The aerosol generating device according to claim 1, wherein: The first coil includes a first portion and a second portion electrically connected to the first portion, and the first portion and the second portion are respectively wound around a plurality of center axes spaced apart from each other.

7. The aerosol generating device according to claim 6, wherein: The first portion and the second portion differ from each other in at least one of the number, size and shape of cross sections and the distance between the cross sections.

8. The aerosol generating device according to claim 6, wherein: The second coil includes a third portion and a fourth portion, and the third portion and the fourth portion are respectively wound around a plurality of center axes spaced apart from each other.

9. The aerosol generating device according to claim 8, wherein: The third portion and the fourth portion differ from each other in at least one of the number, size and shape of cross sections and the distance between the cross sections.

10. The aerosol generating device according to claim 1, wherein: The accommodation portion includes a coil support portion arranged to protrude from at least one region of an outer circumferential surface of the accommodation portion toward an outside of the accommodation portion to support the coil.

11. An aerosol generating system comprising: an aerosol-generating article, the aerosol-generating article comprising a first media portion and a second media portion, the first media portion comprising a first aerosol-generating substance, the second media portion comprising a second aerosol-generating substance; case; a housing portion, the housing portion being located inside the housing and comprising a housing space configured to house at least a portion of the aerosol generating article; a coil arranged to surround at least one region of an outer circumferential surface of the accommodation portion and configured to generate an alternating magnetic field when power is supplied to the coil; as well as A susceptor configured to heat the aerosol generating article by generating heat in response to the alternating magnetic field generated by the coil, wherein the coil comprises: a first coil having a first resistance value; and a second coil arranged to be spaced apart from the first coil in a first direction in which the accommodating portion extends, and the second coil having a second resistance value different from the first resistance value.

12. An aerosol generating system according to claim 11, wherein The aerosol-generating article further comprises a package arranged to surround at least one region of the outer circumferential surface of the aerosol-generating article, and the susceptor comprises a metal film and is arranged between the outer circumferential surface of the aerosol-generating article and the package.

13. An aerosol generating system according to claim 11, wherein: The first media portion includes at least one of nicotine, filter paper including a nicotine solution, and particles, and the second media portion includes glycerin.

14. An aerosol generating system according to claim 11, further comprising: an inductive sensor configured to detect a type of aerosol-generating article housed in the housing portion; as well as A processor is electrically connected to the inductive sensor, wherein the processor is configured to control power supplied to the heating element based on the detected type of the aerosol-generating article housed in the housing portion.

15. An aerosol generating system according to claim 14, wherein: The processor is configured to: when a first aerosol-generating article is accommodated in the accommodation portion, supply a first power to the coil so that the susceptor generates heat according to a first temperature profile; and supplying a second power to the coil to cause the susceptor to generate heat according to a second temperature profile when a second aerosol-generating article is accommodated in the accommodation portion.

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