Capsule, aerosol-generating article comprising capsule, and aerosol-generating system

Abstract

The capsule may be exposed to an alternating magnetic field to release the active material, and may include a core containing the active material and a shell surrounding the core, at least one of the core and the shell may include at least one induction heating element particle heated by exposure to the alternating magnetic field.

Description

TECHNICAL FIELD

[0001] Embodiments relate to a capsule, an aerosol generating article including the capsule, and an aerosol generating system, and more particularly, to a capsule that releases an active material by an alternating magnetic field, an aerosol generating article including the capsule, and an aerosol generating system. BACKGROUND

[0002] Recently, the demand for alternative methods for overcoming the disadvantages of a conventional cigarette is increasing. For example, the demand for a system that heats a cigarette (or, "aerosol generating article") using an aerosol generating device to generate an aerosol is increasing, instead of a method of generating an aerosol by burning a cigarette.

[0003] As an example of a method of heating an aerosol generating article using an aerosol generating device, there are a resistance heating method and an induction heating method. The aerosol generating device of the induction heating method arranges a heater that generates heat by an external magnetic field around or inside the aerosol generating article, and generates heat by applying a magnetic field. SUMMARY

[0004] TECHNICAL PROBLEM An active material (for example, a flavoring material, etc.) included in an aerosol generating article uses a capsule in order to prevent disappearance in storage. In general, the capsule includes an active material in a core, and includes a shell surrounding the core. The capsule is embedded in the aerosol generating article, and when used, a user presses a portion in which the capsule is embedded to break the capsule, thereby releasing the active material. However, depending on the size of the capsule, the thickness, strength, flexibility, adhesion, etc. of the shell, the user can have difficulty in breaking the capsule.

[0005] The technical problem to be solved by the embodiments of the disclosure is not limited to the above-mentioned technical problem, and a person with ordinary knowledge in the technical field to which the embodiments belong can understand the technical problem not mentioned from the specification and the drawings.

[0006] TECHNICAL SOLUTION A capsule according to an embodiment can be exposed to an alternating magnetic field to release an active material, and can include a core including an active material and a shell surrounding the core, at least one of the core and the shell can include at least one inductive heating body particle that is heated by being exposed to the alternating magnetic field.

[0007] An aerosol generating article according to an embodiment can include a capsule and an aerosol generating material that is heated to generate an aerosol.

[0008] An aerosol generating system according to an embodiment can include an aerosol generating article, and an aerosol generating device including an accommodation space into which the aerosol generating article is inserted, and applying an alternating magnetic field to the accommodation space.

[0009] ADVANTAGEOUS EFFECTS Since the capsule according to an embodiment can be exposed to an alternating magnetic field to release an active material, user intervention is not required to release the active material of the capsule, and the release timing of the active material can be easily adjusted.

[0010] Effects according to embodiments are not limited to the effects mentioned above, and persons having ordinary knowledge in the technical field to which embodiments belong can clearly understand the effects not mentioned from the specification and the attached drawings. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 is a schematic view of a capsule according to an embodiment.

[0012] Figure 2 is a schematic view of a capsule according to another embodiment.

[0013] Figure 3 is a schematic view of an aerosol generating article according to an embodiment.

[0014] Figure 4 is a schematic view of an aerosol generating article according to another embodiment.

[0015] Figure 5 is a schematic view of an aerosol generating article according to still another embodiment.

[0016] Figure 6 is a schematic view of an aerosol generating article in a sheet form according to an embodiment.

[0017] Figure 7 is a schematic view of an aerosol generating device according to an embodiment.

[0018] Figure 8 is a block diagram of an aerosol generating device according to another embodiment.

[0019] BEST MODE FOR CARRYING OUT THE INVENTION A capsule according to an embodiment can be exposed to an alternating magnetic field to release an active material, and can include a core including an active material and a shell surrounding the core, at least one of the core and the shell can include at least one inductive heating element particle that is heated by being exposed to an alternating magnetic field.

[0020] The active material can include one or more selected from the group consisting of nicotine, caffeine, an aerosol generating material, and a flavoring material.

[0021] The shell can include a lipid bilayer.

[0022] At least a portion of a surface of the inductive heating element particle can be coated with one or more selected from the group consisting of a lipid, oleic acid, starch, and silicon dioxide.

[0023] The capsule can have a diameter of 1 μm to 50 μm.

[0024] The inductive heating body particle can have a diameter of 1 nm to 100 nm.

[0025] The shell can include a plurality of the inductive heating body particles, and the shell can include a film material in which the plurality of the inductive heating body particles are dispersedly disposed.

[0026] The film material can include one or more selected from the group consisting of carbon nanotube, silicon dioxide, aluminum hydroxide, titanium dioxide, and calcium carbonate.

[0027] The sum of the weights of the plurality of the inductive heating body particles can be 5% to 10% by weight of the total weight of the film material.

[0028] The weight of the active material and the weight of the shell can have a ratio of 7:3 to 4:6.

[0029] The shell can have a thickness of 100 nm to 500 nm.

[0030] An aerosol-generating article according to an embodiment can include a capsule and an aerosol-generating material heated to generate an aerosol.

[0031] The aerosol-generating article can include a plurality of the capsules, and a difference between the diameter of the capsule and an average diameter of the plurality of the capsules can be -10% to 10% of the average diameter of the plurality of the capsules.

[0032] The aerosol-generating article can include an aerosol-generating rod including the aerosol-generating material and the capsule, and a filter rod disposed downstream of the aerosol-generating rod.

[0033] An aerosol-generating system according to an embodiment can include an aerosol-generating article, and an aerosol-generating device including a receiving space into which the aerosol-generating article is inserted, and applying an alternating magnetic field to the receiving space. DETAILED DESCRIPTION

[0034] Hereinafter, embodiments disclosed in the present specification are explained in detail with reference to the accompanying drawings, and the same or similar constituent elements are given the same reference numerals regardless of the drawings and repetitive explanations are omitted.

[0035] The suffixes "module" and "part" used in the following description for the constituent elements are given or mixed only for convenience of writing the specification, and do not have meanings or roles distinguished from each other by themselves.

[0036] Also, in describing the embodiments disclosed in this specification, in cases where it is judged that a detailed description of related known technology can confuse the gist of the embodiments disclosed in this specification, detailed description thereof will be omitted. Also, the drawings are merely for facilitating easy understanding of the embodiments disclosed in this specification, the technical idea disclosed in this specification is not limited by the drawings, and it should be understood to include all modifications, equivalents, and even alternatives included in the scope of the concept and technology of the present disclosure.

[0037] Terms including ordinal numbers such as "first," "second," etc. can be used to describe various constituent elements, but the constituent elements are not limited by the terms. The above terms are used only for the purpose of distinguishing one constituent element from another.

[0038] When it is referred to that one constituent element is "connected" or "coupled" to another constituent element, it should be understood that it can be directly connected or coupled to the other constituent element, but there can be other constituent elements therebetween. In contrast, when it is referred to that one constituent element is "directly connected" or "directly coupled" to another constituent element, it should be understood that there is no other constituent element therebetween.

[0039] Unless it can be clearly understood from the context as having a different meaning, the expression in the singular form encompasses the expression in the plural form.

[0040] As used in this specification, when an expression such as "at least any one of" precedes a constituent element arranged, it modifies the entire constituent element, not each constituent arranged. For example, the expression "at least any one of a, b, and c" should be interpreted to include a, b, c, or a and b, a and c, b and c, or a and b and c.

[0041] Throughout the specification, "an aerosol-generating device" can be a device that generates an aerosol using an aerosol-generating material in order to generate an aerosol that can be directly inhaled into a user's lungs through the user's mouth.

[0042] Throughout the specification, "an aerosol-generating article" means an article for smoking. For example, the aerosol-generating article can be a combustion cigarette using a lit combustion method, or a heating cigarette using a method of being heated by an aerosol-generating device.

[0043] Throughout the specification, "an aerosol-generating system" can include an aerosol-generating device and an aerosol-generating article. For example, the aerosol-generating system can be a system that delivers an aerosol generated by heating an aerosol-generating article using an aerosol-generating device to a user.

[0044] Throughout the specification, "puff" means a user's inhalation. The inhalation can mean a case in which an aerosol is inhaled into an oral cavity, a nasal cavity, or a lung through a user's mouth or nose.

[0045] Figure 1 is a schematic view of a capsule according to an embodiment.

[0046] Referring to Figure 1 The capsule 1 can include a core C and a shell S surrounding the core C. The core C can include an active material. Figure 1 is shown a state in which the active material is released to the outside of the capsule 1 after the capsule 1 is exposed to an alternating magnetic field according to an embodiment. For example, the capsule 1 can be used for an aerosol generating article that is heated by being exposed to an alternating magnetic field.

[0047] The active material can include a material for achieving or enhancing a physiological response. Also, the active material can include a material for changing a characteristic of an aerosol generated by an aerosol generating article. For example, the active material can include one or more selected from the group consisting of nicotine, caffeine, an aerosol generating material, and a flavoring material.

[0048] The aerosol generating material can 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.

[0049] The flavoring material can impart a flavor to an aerosol generated by a later-described aerosol generating article. The flavoring material can include a natural flavoring material and / or a synthetic flavoring material. For example, the synthetic flavoring material can include one or more selected from the group consisting of esters, alcohols, aldehydes, ketones, phenols, ethers, lactones, hydrocarbons, nitrogen-containing compounds, sulfur-containing compounds, and acids.

[0050] Also, for example, the natural flavoring material can include oil of one or more selected from the group consisting of star anise, basil, calamus, caraway, pepper, cascarilla, ginger, sage, clary sage, clove, coriander, eucalyptus, fennel, piment, juniper, fenugreek, bay laurel, mace, almond, anise, mugwort, apricot, strawberry, fig, ylang-ylang, wintergreen, plum, elderberry, chamomile, galangal, papaya, guava, cranberry, sanshool, sandalwood, perilla, jasmine, ginseng, cinnamon, carambola, styrax, spearmint, peppermint, geranium, thyme, tansy, orange, tuberose, mint, passion fruit, vanilla, rose, coffee, Japanese hemlock, pine, mango, beeswax, musk, maple, melon, peach, lavender, and rosemary.

[0051] The core C can include an oleophilic solvent mixed with an active material. For example, the oleophilic solvent can include a triglyceride, a medium-chain triglyceride (e.g., a triglyceride of caprylic acid and capric acid), a vegetable oil (e.g., olive oil, sunflower oil, corn oil, peanut oil, grape seed oil, wheat germ oil, rapeseed oil), a mineral oil, a silicone oil, or a mixture thereof with a triglyceride, a fatty acid (e.g., a polyunsaturated fatty acid, docosahexaenoic acid, etc.), a fatty acid ester (e.g., isopropyl myristate), a sucrose fatty acid ester, a liquid paraffin, squalene, etc.

[0052] Referring to Figure 1 , the core C can include a plurality of induction heat generator particles P. Although Figure 1 an example in which a plurality of induction heat generator particles P are included in the core C is illustrated, the present disclosure is not limited thereto. For example, the core C can also include a single induction heat generator particle P. As another example, the induction heat generator particles P can be included in the shell S rather than the core C, or can be included in both the core C and the shell S. For embodiments in which the shell S includes the induction heat generator particles P, a description thereof will be made later with reference to Figure 2 .

[0053] The induction heat generator particles P can be heated by an alternating magnetic field applied from the outside. For example, the induction heat generator particles P can be heated by being exposed to an alternating magnetic field generated by an aerosol-generating device. The aerosol-generating device can be a device that generates an aerosol by heating an aerosol-generating article accommodated in the aerosol-generating device in an induction heating manner.

[0054] Specifically, the induction heating method can mean a method of heating a magnetic substance that is heated by an external magnetic field by applying an alternating magnetic field having a periodically varying direction to the magnetic substance.

[0055] In the case where an alternating magnetic field is applied to a magnetic substance, energy loss can occur in the magnetic substance due to eddy current loss and hysteresis loss, and the lost energy can be released from the magnetic substance in the form of heat energy. The greater the amplitude or frequency of the alternating magnetic field applied to the magnetic substance, the more heat energy can be released from the magnetic substance.

[0056] At least a portion of the inductive heating body particles P can be formed using a ferromagnetic substance. For example, the inductive heating body particles P can include a metal or carbon. The inductive heating body particles P can include at least one of ferrite, a ferromagnetic alloy, stainless steel, and aluminum (Al). Also, the inductive heating body particles P can include at least one of a ceramic such as graphite, molybdenum, silicon carbide, niobium, a nickel alloy, zirconia, etc., a transition metal such as nickel (Ni) or cobalt (Co), and a quasi-metal such as boron or phosphorus.

[0057] The inductive heating body particles P can be heated by an alternating magnetic field, and permeability of the shell S can be increased. For example, as the inductive heating body particles P heated can reversibly or irreversibly change a structural morphology of the shell S, permeability of the shell S to the active material can be increased. Accordingly, the active material can be released to the outside of the capsule 1.

[0058] Referring to Figure 1 The shell S can include a lipid bilayer SL. The lipid bilayer SL can mean a thin polar membrane composed of two layers of lipid molecules. The capsule 1 can have a similar morphology to a liposome surrounded by the lipid bilayer SL. If the inductive heating body particles P included in the core C are heated, a distance between the lipid molecules constituting the lipid bilayer SL can be increased, and the active material of the core C can be released to the outside of the capsule 1 through the increased distance.

[0059] At least a portion of a surface of the inductive heating body particles P included in the core C can be coated with one or more selected from the group consisting of a lipid, oleic acid, starch, and silicon dioxide. For the coated inductive heating body particles P, stability of the shell S including the lipid bilayer SL in the inside can be improved.

[0060] The capsule 1 can have a diameter of about 1 μm to about 50 μm. Under the diameter range of the aforementioned capsule 1, a temperature of the capsule 1 can be easily adjusted by the inductive heating body particles P heated. Accordingly, permeability of the shell S can be easily adjusted, and a time point of releasing the active material can be adjusted. For example, the capsule 1 can have a diameter of about 2 μm to about 20 μm or a diameter of about 3 μm to about 10 μm.

[0061] Also, the induction heat generator particles P can have a diameter of about 1 nm to about 100 nm. With the diameter of the induction heat generator particles P in the foregoing range, thermal decomposition of the active material can be prevented. Also, in the case where the capsule 1 includes a plurality of induction heat generator particles P, the plurality of induction heat generator particles P can be uniformly dispersed in the inside of the capsule 1, whereby the temperature of the capsule 1 can be easily adjusted. For example, the induction heat generator particles P can have a diameter of about 10 nm to about 80 nm or a diameter of about 20 nm to about 60 nm.

[0062] Ordinary capsules require user intervention for breakage, and thus cannot be disposed in a portion of an aerosol generating article that is heated, but only in a portion (e.g., a filter portion) that is not heated. Thus, the active ingredient included in the capsule can be limited to a volatile substance that is not required to be heated. Also, the capsule needs to have an appropriate size so that the user easily breaks it, and thus occupies a volume that is not small. Accordingly, a large number of capsules cannot be included, and there can be a region in the inside of the aerosol generating article that is relatively close to the capsule and a region that is not close to the capsule. This can result in the active material not being uniformly released from the inside of the aerosol generating article.

[0063] The capsule 1 according to the embodiment can release the active material by applying an alternating magnetic field, and thus does not require user intervention. Also, the capsule 1 can be disposed in a portion of the aerosol generating article that is heated, and thus an active material that is required to be heated can also be included in the core of the capsule. Also, since the capsule 1 has a relatively small volume, a large number of capsules can be included in the aerosol generating article. Accordingly, the capsules 1 can be uniformly distributed in the inside of the aerosol generating article, and the active material can be uniformly released from the inside of the aerosol generating article.

[0064] Figure 2 is a schematic view of a capsule according to another embodiment.

[0065] Referring to Figure 2 , the capsule 1 can include a core C and a shell S surrounding the core C. The core C of the capsule 1 can include an active material. The foregoing contents regarding the core C and the active material included in the core C can equally apply to the core C of the capsule 1. Figure 1

[0066] The shell S can include a film material SM in which a plurality of induction heat generator particles P are dispersedly disposed. Although Figure 1 an embodiment in which the induction heat generator particles P are disposed in the core C is shown and Figure 2 an embodiment in which the induction heat generator particles P are disposed in the shell S is shown, the embodiments are not limited thereto. For example, the induction heat generator particles P can also be disposed in both the core C and the shell S.

[0067] ​Multiple induction heating particles P arranged inside the membrane material SM can be heated by an alternating magnetic field applied from the outside, and can directly affect the permeability of the membrane material SM. For example, the membrane material SM can be structurally deformed by the heat generated from the induction heating particles P. According to the structural deformation of the membrane material SM, the permeability of the shell S can be improved, thereby allowing the active material to be released to the outside of the capsule 1.

[0068] The membrane material SM may include one or more of the group selected from carbon nanotubes, silica, aluminum hydroxide, titanium dioxide, and calcium carbonate. However, it is not limited to this, and any material capable of safely retaining the inductive heating element particles P within the membrane material SM may be used without limitation. For example, the membrane material SM may include a silica matrix, and multiple inductive heating element particles P may be dispersedly arranged inside and / or outside the silica matrix.

[0069] Based on the total weight of the membrane material SM, the sum of the weights of the plurality of induction heating element particles P included in the membrane material SM can be from about 5% to about 10% by weight. When the sum of the weights of the plurality of induction heating element particles P included in the membrane material SM meets the aforementioned range, the capsule 1 can stably retain the active material, and the permeability of the shell S can be easily adjusted according to the heating of the induction heating element particles P. When the total weight of the membrane material SM includes less than about 5% by weight of induction heating element particles P, the active material of the core C cannot be released to the outside even when exposed to an alternating magnetic field. When the total weight of the membrane material SM includes more than about 10% by weight of induction heating element particles P, the stability of the membrane material SM may be insufficient. For example, based on the total weight of the membrane material SM, the sum of the weights of the plurality of induction heating element particles P included in the membrane material SM can be from about 6% to about 9% by weight or from about 7% to about 8% by weight.

[0070] The weight ratio of the active material to the shell S can be from about 7:3 to about 4:6. If the weight of the active material exceeds the aforementioned ratio, the shell S may have difficulty stably retaining the active material. If the weight of the active material is less than the aforementioned ratio, the release of the active material may become difficult regardless of the permeability of the shell S, which varies according to the inductively heated particle P. For example, the weight ratio of the active material to the shell S can be from about 7:3 to about 5:5 or from about 6:4 to about 4:6.

[0071] The shell S can have a thickness of about 100 nm to about 500 nm. Since the shell S has a thickness in the aforementioned range, the stability of the capsule 1 can be improved, and the permeability of the shell S can be easily adjusted. In a case where the thickness of the shell S is less than about 100 nm, the stability of the capsule 1 can be insufficient (a hole is formed in the shell S due to the size of the inductive heating element particles P included in the shell S, etc.). In a case where the thickness of the shell S exceeds about 500 nm, the permeability of the shell S can not be improved to a level capable of releasing the active material even after the inductive heating element particles P generate heat. For example, the shell S can have a thickness of about 150 nm to about 450 nm or a thickness of about 200 nm to about 400 nm.

[0072] Hereinafter, referring to Figures 3 to 6 , an aerosol generating article using the capsule 1 according to an embodiment is explained.

[0073] Figure 3 is a schematic view of an aerosol generating article according to an embodiment.

[0074] Referring to Figure 3 , the aerosol generating article 10 can include an aerosol generating rod 11 and a filter rod 12. The filter rod 12 can be disposed downstream of the aerosol generating rod 11.

[0075] "Upstream" and "downstream" can be determined based on the direction of air flow when a user inhales an aerosol using the aerosol generating article 10. For example, in a case where the user inhales an aerosol using the aerosol generating article 10 as illustrated in Figure 3 , since air moves from the aerosol generating rod 11 toward the filter rod 12, the aerosol generating rod 11 is located "upstream" of the filter rod 12. In addition, it would be easily understood by one of ordinary skill in the technical field to which the present disclosure pertains that "upstream" and "downstream" can have relativity depending on the relationship of constituent elements.

[0076] The aerosol generating rod 11 can be heated to generate an aerosol. For example, the aerosol generating rod 11 can include a tobacco material. The aerosol generating rod 11 can be heated to generate an aerosol including nicotine. The tobacco material can have a form of a tobacco strand, a tobacco particle, a tobacco sheet, a tobacco bead, a tobacco granule, a tobacco powder, or a tobacco extract, but is not limited thereto.

[0077] For example, the aerosol generating rod 11 can include a plurality of tobacco strands, and the plurality of tobacco strands can include reconstituted tobacco cut. The reconstituted tobacco cut can be made by finely cutting reconstituted tobacco sheets. The reconstituted tobacco cut can be made by the following process. A tobacco raw material is pulverized, and a slurry mixed with an aerosol generating material (e.g., glycerol, propylene glycol, etc.), a flavoring liquid, a binder (e.g., guar gum, xanthan gum, carboxymethyl cellulose, etc.), water, etc. is made. Natural pulp or cellulose can be added to the slurry, and one or more binders can be mixed and used. After the slurry is cast to form a sheet, drying is performed to make a reconstituted tobacco sheet. The reconstituted tobacco cut can be made by cutting, pinching, or finely cutting the made reconstituted tobacco sheet. The tobacco raw material can be tobacco leaves, tobacco stems, and / or tobacco dust generated in the processing of tobacco. Also, other additives such as lignocellulosic fibers can be included in the reconstituted tobacco sheet.

[0078] Also, the aerosol generating rod 11 can include tobacco cut made by cutting a plurality of tobacco leaves processed together. Also, the aerosol generating rod 11 can have the reconstituted tobacco cut and the tobacco cut mixed therein.

[0079] As another example, the aerosol generating rod 11 can include a plurality of tobacco granules. The tobacco granules can be granules having a diameter of about 100 µm to about 2,000 µm. The tobacco granules can be prepared by extruding a mixture mixed with tobacco pulverate, a pH adjuster, and a solvent.

[0080] The plurality of tobacco granules can be arranged between the filter material. For example, the filter material can include cellulose acetate fiber strands gathered together as a fiber bundle. The plurality of tobacco granules can be arranged in a state of being uniformly dispersed between the plurality of cellulose fibers. As another example, the filter material can include a crimped paper sheet. The crimped paper sheet can be arranged in a crimped state inside the aerosol generating rod 11. The crimped paper sheet can be crimped around an axis extending in a length direction of the aerosol generating rod 11. The plurality of tobacco granules can be dispersedly arranged inside the crimped paper sheet.

[0081] The tobacco material includes an aerosol generating material. For example, the aerosol generating material can include at least one of glycerol, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol, but is not limited thereto. Also, the tobacco material can include other additive materials such as a flavoring agent, a wetting agent, and / or an organic acid. Also, a flavoring liquid such as menthol or a humectant can be added to the tobacco material by being sprayed to the tobacco material.

[0082] The aerosol generating rod 11 can also include other plant materials other than the tobacco material. For example, the aerosol generating rod 11 can include a vanilla material. The aerosol generating rod 11 can also include a sheet including a vanilla material. The vanilla material can include at least one of peppermint, lemon grass, cassia, clover leaf, rose leaf, and corn silk, but is not limited thereto. The sheet including a vanilla material can be impregnated with the aerosol generating material.

[0083] Also, the aerosol generating rod 11 can include an aerosol generating base material impregnated with a liquid aerosol generating composition. The aerosol generating base material can include a crimped sheet, and the liquid aerosol generating composition can be included in the aerosol generating rod 11 in a state of being impregnated in the crimped sheet. Also, other additive materials such as a flavoring agent, a wetting agent, and / or an organic acid, and a flavoring liquid can be included in the aerosol generating rod 11 in a state of being absorbed by the crimped sheet.

[0084] The aerosol generating base material can be arranged in a crimped state inside the aerosol generating rod 11. The crimped aerosol generating base material can be crimped about an axis extending in a length direction of the aerosol generating article 10, but is not limited thereto.

[0085] The crimped sheet can be a sheet configured of a polymer material. For example, the polymer material can include at least one of paper, cellulose acetate, lyocell, polylactic acid. For example, the crimped sheet can be a paper sheet that does not generate an odor by heat even when heated at a high temperature.

[0086] The liquid aerosol generating composition can include nicotine. The nicotine can include freebase nicotine and / or nicotine salt. The freebase nicotine can refer to nicotine that is neutral without a proton attached. For example, if a strong base such as ammonia is attached to a positively charged nicotine salt, the strong base is converted into a cation, and the nicotine salt can become freebase nicotine in a neutral state.

[0087] Also, the liquid aerosol generating composition can include an aerosol generating material. The aerosol generating material can equally apply to the aforementioned content regarding the aerosol generating material included in the tobacco material.

[0088] About 0.05 g to about 1.0 g of the liquid aerosol generating composition can be impregnated per 1 g of the aerosol generating base material. For example, about 0.1 g to about 0.8 g of the liquid aerosol generating composition can be impregnated per 1 g of the aerosol generating base material.

[0089] The aerosol-generating rod 11 can include a plurality of capsules 1. Figures 1 to 2 Referring to FIG. 1, the aerosol-generating rod 11 can include a plurality of capsules 1. Figure 3 Although it is illustrated that a plurality of capsules 1 are included in the aerosol-generating rod 11, embodiments are not limited thereto. For example, the aerosol-generating rod 11 can also include one capsule 1. Also, for convenience of explanation, the size of the capsule 1 illustrated in FIG. 1 can be exaggerated in scale and can have a smaller or larger size than that illustrated in the drawing. Figure 3

[0090] Referring to FIG. 1, the aerosol-generating rod 11 can include a plurality of capsules 1. Figure 3 The plurality of capsules 1 included in the aerosol-generating rod 11 can be dispersedly arranged in the aerosol-generating rod 11. For example, the aerosol-generating rod 11 can include reconstituted tobacco cut filler, and the plurality of capsules 1 can be dispersedly arranged in the entire area of a plug formed with the reconstituted tobacco cut filler. As another example, the aerosol-generating rod 11 can include an aerosol-generating base material that is crimped about a shaft extending in a length direction, and the plurality of capsules 1 can be dispersedly arranged in the inside of the crimped aerosol-generating base material. In a case in which the aerosol-generating rod 11 is exposed to an alternating magnetic field, the plurality of capsules 1 arranged in the aerosol-generating rod 11 can release active substances. The released active substances can be moved together with an aerosol generated from the aerosol-generating rod 11.

[0091] The plurality of capsules 1 can have a uniform size distribution. That is, the plurality of capsules 1 can have similar sizes to each other. For example, the difference between the diameter of the capsule 1 and the average diameter of the plurality of capsules 1 can be about -10% to about 10% based on the average diameter of the plurality of capsules 1. Since the plurality of capsules 1 have a uniform size distribution, active ingredients can be released from the plurality of capsules 1 at similar time points. As another example, the difference between the diameter of the plurality of capsules 1 and the average diameter of the plurality of capsules 1 can be about -8% to about 8% or about -7% to about 7% based on the average diameter of the plurality of capsules 1.

[0092] The plurality of capsules 1 included in the aerosol-generating rod 11 can include different active substances from each other. For example, a portion of the plurality of capsules 1 can include a flavoring substance as an active substance, and the remaining portion of the plurality of capsules 1 can include an aerosol-generating substance as an active substance. As another example, a portion of the plurality of capsules 1 can include nicotine as an active substance, and the remaining portion of the plurality of capsules 1 can also include a flavoring substance.

[0093] Also, a portion of the plurality of capsules 1 included in the aerosol-generating rod 11 can be the capsule 1 illustrated in FIG. 1, and the remaining portion of the plurality of capsules 1 can be the capsule 1 illustrated in FIG. 2. However, embodiments are not limited thereto, and all of the plurality of capsules 1 included in the aerosol-generating rod 11 can be the capsule 1 illustrated in FIG. 1. Figure 1 Figure 2 Also, a portion of the plurality of capsules 1 included in the aerosol-generating rod 11 can be the capsule 1 illustrated in FIG. 1, and the remaining portion of the plurality of capsules 1 can be the capsule 1 illustrated in FIG. 2. However, embodiments are not limited thereto, and all of the plurality of capsules 1 included in the aerosol-generating rod 11 can be the capsule 1 illustrated in FIG. 1. Figure 1 ​​The capsule 1 shown, or both, can be Figure 2 The capsule 1 shown.

[0094] The filter rod 12 can be constructed with a plurality of segments. The filter rod 12 can include a first segment 12-1 for cooling an aerosol and a second segment 12-2 for filtering a predetermined component included in the aerosol. Although the filter rod 12 is shown to include two segments, it is not limited thereto. For example, the filter rod 12 can include a single segment. Also, the filter rod 12 can further include at least one segment performing other functions. Figure 3 Although the filter rod 12 is shown to include two segments, it is not limited thereto. For example, the filter rod 12 can include a single segment. Also, the filter rod 12 can further include at least one segment performing other functions.

[0095] The filter rod 12 can filter a portion of the component included in the aerosol passing through the filter rod 12. The filter rod 12 can include a filter material. For example, the filter rod 12 can be a cellulose acetate filter. The filter rod 12 can be manufactured by adding a plasticizer (e.g., triacetin) to a cellulose acetate tow.

[0096] The shape of the filter rod 12 is not limited. For example, the filter rod 12 can be a cylindrical rod, or a tube type rod having a hollow inside. Alternatively, the filter rod 12 can be a recess type rod. In the case where the filter rod 22 is constructed with a plurality of segments, at least one of the plurality of segments can also be manufactured in other shapes.

[0097] The filter rod 12 can be manufactured to generate a flavor. As an example, the filter rod 12 can be sprayed with a flavoring liquid, or an additional fiber coated with a flavoring liquid can be inserted into the inside of the filter rod 12.

[0098] A first segment 12-1 for cooling an aerosol can be included in the filter rod 12. The first segment 12-1 can include a high molecular material or a biodegradable high molecular material. For example, the first segment 12-1 can include polylactic acid, but is not limited thereto. As another example, the first segment 12-1 can include a cellulose acetate tube including a hollow or a paper tube formed of paper.

[0099] At least one hole 12-1h can be formed at the outer surface of the first segment 12-1. The at least one hole 12-1h can be formed along the circumferential direction of the first segment 12-1 and form more than one row. The at least one hole 12-1h can allow external air to flow into the inside of the first segment 12-1. The external air flowing into the inside of the first segment 12-1 can be mixed with the high-temperature aerosol generated by the aerosol generating rod 11.

[0100] The aerosol generating article 10 can include a wrapping member 14 surrounding one of the aerosol generating rod 11 and the filter rod 12. Also, the aerosol generating article 10 can include a wrapping member 14 surrounding both of the aerosol generating rod 11 and the filter rod 12. The wrapping member 14 can be located at the outermost profile of the aerosol generating article 10. The wrapping member 14 can be a single wrapping member, or a combination of a plurality of wrapping members.

[0101] The aerosol generating article 10 can be wrapped by two or more wrapping members 14. For example, the aerosol generating rod 11 can be wrapped by a first wrapping member 14-1, the first segment 12-1 of the filter rod 12 can be wrapped by a second wrapping member 14-2, and the second segment 12-2 of the filter rod 12 can be wrapped by a third wrapping member 14-3. Also, the entire aerosol generating article 10 can be wrapped again by a fourth wrapping member 14-4.

[0102] The first wrapping member 14-1 can surround the aerosol generating rod 11. The first wrapping member 14-1 can be combined by paper and a metal foil such as an aluminum foil. For example, the first wrapping member 14-1 can be a stacked sheet in which paper and a metal foil are stacked. The first wrapping member 14-1 can be a stacked sheet in which paper is disposed on one surface of a metal foil, or can be a stacked sheet in which paper is disposed on both surfaces of a metal foil.

[0103] The paper of the first wrapping member 14-1 can include an oil resistant substance. For example, the paper of the first wrapping member 14-1 can include polyvinyl alcohol (PVOH) or silicone. The surface of the paper of the first wrapping member 14-1 can be coated with polyvinyl alcohol or silicone.

[0104] The second wrapping member 14-2 can surround the first segment 12-1 of the filter rod 12. The second wrapping member 14-2 can include a paper roll. The paper roll of the second wrapping member 14-2 can be a porous paper roll or a non-porous paper roll. At least one perforation 15 can be formed in the second wrapping member 14-2. For example, the second wrapping member 14-2 can wrap the first segment 12-1 formed with at least one hole 12-1h, and the at least one perforation 15 formed in the second wrapping member 14-2 can be formed at a position corresponding to the at least one hole 12-1h formed in the first segment 12-1.

[0105] The third wrapping member 14-3 can surround the second segment 12-2 of the filter rod 12. The third wrapping member 14-3 can include a hard paper roll having a thickness and a basis weight greater than those of an ordinary paper roll. For example, the thickness of the hard paper roll can be about 70 μm to about 150 μm, and the basis weight can be about 50 g / m 2 to about 100 g / m 2Furthermore, the hard roll paper may include oil-resistant materials. For example, the hard roll paper may include a surface treatment using oil-resistant materials such as polyvinyl alcohol or silicone.

[0106] The fourth wrapping component 14-4 can completely surround the aerosol generating rod 11 wrapped by the first wrapping component 14-1, the first segment 12-1 of the filter rod 12 wrapped by the second wrapping component 14-2, and the second segment 12-2 of the filter rod 12 wrapped by the third wrapping component 14-3. The fourth wrapping component 14-4 can prevent the exterior of the aerosol generating article 10 from being contaminated by the aerosol generated by the aerosol generating article 10. Liquid substances can be generated within the aerosol generating article 10 by the user's suction. For example, the aerosol generated by the aerosol generating article 10 may generate liquid substances (e.g., moisture) when cooled by outside air. Because the fourth wrapping component 14-4 wraps the outer surface of the aerosol generating article 10, leakage of the generated liquid substances to the exterior of the aerosol generating article 10 can be prevented.

[0107] Figure 4 This is a schematic diagram of an aerosol-generated article according to another embodiment.

[0108] Reference Figure 4 The aerosol generating article 10 may include a front plug 13, an aerosol generating rod 11, a filter rod 12, and a wrapping component 14. Figure 4 The aerosol generating rod 11, filter rod 12, and encapsulation component 14 of the aerosol generating article 10 can be similarly applied to the aforementioned... Figure 3 The contents of the aerosol generating rod 11, filter rod 12, and packaging component 14 of the aerosol generating article 10.

[0109] The front plug 13 can be disposed upstream of the aerosol generating rod 11. The front plug 33 can be located on the opposite side of the filter rod 12 relative to the aerosol generating rod 11. The front plug 33 can prevent the aerosol generating rod 11 from detaching outward. Furthermore, the front plug 33 can prevent the liquefied aerosol from moving from the aerosol generating rod 11 towards the aerosol generating device during smoking.

[0110] The front plug 13 may include cellulose acetate. For example, the front plug 13 may be a hollow cellulose acetate tube.

[0111] The front plug 13 can be packaged by a fifth wrapping component 14-5. The fifth wrapping component 14-5 can be made of paper and metal foil such as aluminum foil. For example, the fifth wrapping component 14-5 can be a stacked sheet of paper and metal foil. The fifth wrapping component 14-5 can be a stacked sheet of paper with paper arranged on one surface of the metal foil, or it can be a stacked sheet of paper with paper arranged on both sides of the metal foil.

[0112] Also, the front end plug 13 can be wrapped by two or more wrapping members 14. For example, the front end plug 13 can be wrapped by a fifth wrapping member 14-5, the aerosol generating rod 11 can be wrapped by a first wrapping member 14-1, the first segment 12-1 of the filter rod 12 can be wrapped by a second wrapping member 14-2, and the second segment 12-2 of the filter rod 12 can be wrapped by a third wrapping member 14-3. Also, the entire aerosol generating article 10 can be wrapped again by a fourth wrapping member 14-4.

[0113] The front end plug 13 can also be heated to generate an aerosol. The front end plug 13 can include an aerosol generating material. Also, the front end plug 13 can include a wetting agent and / or other additive materials such as an organic acid, and can include a flavoring liquid such as menthol. For example, the aerosol generating material can include at least one of glycerin, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol.

[0114] The front end plug 13 can include an aerosol generating substrate. The aerosol generating material can be impregnated in the aerosol generating substrate. The aerosol generating substrate can include a crimped sheet, and the aerosol generating material can be included in the front end plug 13 in a state of being impregnated in the crimped sheet. Also, flavoring agents, wetting agents, and / or other additive materials such as an organic acid can be included in the front end plug 13 in a state of being impregnated in the crimped sheet.

[0115] The aerosol generating substrate can be arranged in a crimped state inside the front end plug 13. The crimped aerosol generating substrate can be crimped about an axis extending in a length direction of the aerosol generating article 10, but is not limited thereto.

[0116] The crimped sheet can be a sheet configured of a polymer material. For example, the polymer material can include at least one of paper, cellulose acetate, lyocell, and polylactic acid. For example, the crimped sheet can be a paper sheet that does not generate an odor due to heat even when heated at a high temperature.

[0117] The front end plug 13 can have a length of about 7 mm to about 20 mm, and the aerosol generating rod 11 can have a length of about 7 mm to about 20 mm. However, it is not necessarily limited to this numerical range, and the lengths of the front end plug 13 and the aerosol generating rod 11 can be appropriately changed.

[0118] Figure 5 FIG. 7 is a schematic view of an aerosol generating article according to still another embodiment.

[0119] Referring toFigure 5 The aerosol generating article 10 can include a front end plug 13, an aerosol generating rod 11, a filter rod 12, and a wrapping member 14. Figure 5 The front end plug 13, the aerosol generating rod 11, the filter rod 12, and the wrapping member 14 of the aerosol generating article 10 of the above-described embodiment can be identically applicable to the contents of the above-described embodiments. Figure 4 The front end plug 13, the aerosol generating rod 11, the filter rod 12, and the wrapping member 14 of the aerosol generating article 10 of the above-described embodiment can be identically applicable to the contents of the above-described embodiments.

[0120] The front end plug 13 and the aerosol generating rod 11 can include capsules 1. Referring to Figure 5 The aerosol generating rod 11 can include Figure 1 the capsule 1 shown in FIG. 1A, the front end plug 13 can include Figure 2 the capsule 1 shown in FIG. 1B. However, it is not limited thereto, and the front end plug 13 and the aerosol generating rod 11 can include the same capsule 1. Also, as another example, it can be that the aerosol generating rod 11 includes Figure 2 the capsule 1 shown in FIG. 1A, the front end plug 13 includes Figure 1 the capsule 1 shown in FIG. 1B. Each of the front end plug 13 and the aerosol generating rod 11 can also include both Figure 1 the capsule 1 shown in FIG. 1A, and Figure 2 the capsule 1 shown in FIG. 1B.

[0121] The capsule 1 included in the front end plug 13 and the capsule 1 included in the aerosol generating rod 11 can include different active substances from each other. For example, the capsule 1 included in the front end plug 13 can include an aerosol generating substance as an active substance, and the capsule 1 included in the aerosol generating rod 11 can include nicotine. As another example, the capsule 1 included in the front end plug 13 can include a flavoring substance as an active substance, and the capsule 1 included in the aerosol generating rod 11 can include an aerosol generating substance. However, it is not limited thereto, and the capsule 1 included in the front end plug 13 and the capsule 1 included in the aerosol generating rod 11 can also include the same active substance.

[0122] The capsule 1 included in the front end plug 13 and the capsule 1 included in the aerosol generating rod 11 can release active substances at different time points. For example, the capsule 1 included in the front end plug 13 can release an active substance at an early stage of a heating interval, and the capsule 1 included in the aerosol generating rod 11 can release an active substance at a late stage of the heating interval. Herein, the "heating interval" can mean a length of time from a time point at which a heater of a later-described aerosol generating device starts heating to a time point at which the heater ends heating. Also, in the entire heating interval, a portion corresponding in time to the early stage (for example, a length of time corresponding to about half of the heating interval) corresponds to the "early stage of the heating interval", and the remaining length of time corresponds to the "late stage of the heating interval".

[0123] For example, the capsule 1 included in the front end plug 13 can preferentially release the active material compared to the capsule 1 included in the aerosol generating rod 11. Since the capsule 1 disposed upstream preferentially releases the active material compared to the capsule 1 disposed downstream, it is possible to prevent a problem in which the active materials included in the aerosol are mixed.

[0124] For example, in a case in which the capsule 1 disposed downstream releases the active material at an early stage of the heating section and the capsule 1 disposed upstream releases the active material at a late stage of the heating section, the active material released at the late stage of the heating section can pass through the capsule 1 disposed downstream together with the aerosol. Accordingly, a problem in which the active material released at the late stage of the heating section is mixed with the active material released at the early stage of the heating section can occur.

[0125] In contrast, in a case in which the capsule 1 disposed upstream releases the active material at an early stage of the heating section and the capsule 1 disposed downstream releases the active material at a late stage of the heating section, since the active material released at the late stage of the heating section does not pass through the capsule 1 disposed downstream, it is possible to prevent a problem in which the active materials are mixed with each other.

[0126] Although Figures 3 to 5 Although an example in which the aerosol generating article 10 has a rod shape is illustrated, embodiments are not limited thereto. For example, the aerosol generating article can also have a sheet shape.

[0127] Figure 6 FIG. 2 is a schematic view of an aerosol generating article according to an embodiment.

[0128] Referring to Figure 6 The aerosol generating article 10 in a sheet shape can have a circular shape in a cross-section viewed in a direction perpendicular to the length direction. However, embodiments are not limited thereto, and can also have a polygonal shape including a triangle, a rectangle, a square, or a pentagon, etc.

[0129] The aerosol generating article 10 in a sheet shape can include an aerosol generating base material 16 and a plurality of capsules 1 disposed in the aerosol generating base material 16. Figure 6 The capsules 1 of FIG. 1 can be equally applicable to the contents of the capsules 1 described above with reference to Figures 1 to 2 FIG. 2.

[0130] The aerosol generating base material 16 can be a solid including an aerosol generating material. The plurality of capsules 1 can be disposed inside the solid including the aerosol generating material. The solid including the aerosol generating material can include a tobacco material. For example, the solid including the aerosol generating material can be an integrated tobacco solid.

[0131] For example, the tobacco solid can be manufactured according to a manufacturing method including steps of: preparing a tobacco composition including a tobacco powder, a binder, and an aerosol generating material; inserting the tobacco composition into a mold in a sheet form; and drying the tobacco composition inserted into the mold in the sheet form.

[0132] The aerosol generating base material 16 can have a porous structure including a plurality of pores. For example, the aerosol generating base material 16 can include a porous tobacco solid. For example, the aerosol generating base material 16 can have a specific surface area of 200 m 2 / g to 1000 m 2 / g. Also, the aerosol generating base material 16 can have a specific surface area of 300 m 2 / g to 800 m 2 / g.

[0133] The plurality of capsules 1 can be added to the aerosol generating base material 16 in a spraying manner. According to this, a part of the plurality of capsules 1 can be disposed on an outer surface of the aerosol generating base material 16. Also, the remaining part of the plurality of capsules 1 can be disposed by moving to an inside of the aerosol generating base material 16 through the plurality of pores formed in the aerosol generating base material 16.

[0134] Figure 7 FIG. 1 is a schematic view of an aerosol-generating device according to an embodiment.

[0135] Figure 7 FIG. 1 is a schematic view of an aerosol-generating device according to an embodiment.

[0136] Referring to Figure 7 , the aerosol-generating device 100 can include a heater 150, a coil 151, a battery 140, a sensing portion 120, and a control portion 110. However, it is not limited thereto, and the aerosol-generating device 100 can include other general elements in addition to the elements shown in FIG. 1. Figure 7

[0137] The aerosol-generating device 100 can heat the aerosol-generating article 10 accommodated in the aerosol-generating device 100 in an induction heating manner to generate an aerosol. The induction heating manner can mean a manner in which a magnetic substance that generates heat by an external magnetic field is heated by applying an alternating magnetic field that periodically changes in direction to the magnetic substance.

[0138] ​In a case in which an alternating magnetic field is applied to the magnetic substance, energy loss can occur in the magnetic substance due to eddy current loss and hysteresis loss, and the lost energy can be released from the magnetic substance as heat energy. The greater the amplitude or frequency of the alternating magnetic field applied to the magnetic substance, the more heat energy can be released from the magnetic substance. The aerosol generating device 100 can release heat energy from the magnetic substance by applying an alternating magnetic field to the magnetic substance, and can transfer the heat energy released from the magnetic substance to the aerosol generating article 10.

[0139] The magnetic substance that heats by an external magnetic field can be a susceptor. The susceptor can be provided in the aerosol generating device 100 in the shape of a chip, a sheet, or a strip, etc. For example, at least a portion of the heater 150 disposed inside the aerosol generating device 100 can be formed using a susceptor substance.

[0140] At least a portion of the susceptor substance can be formed using a ferromagnetic substance. For example, the susceptor substance can include a metal or carbon. The susceptor substance can include at least one of ferrite, a ferromagnetic alloy, stainless steel, and aluminum (Al). Also, the susceptor substance can include at least one of a ceramic such as graphite, molybdenum, silicon carbide, niobium, a nickel alloy, a metal film, zirconia, etc., a transition metal such as nickel (Ni) or cobalt (Co), and a quasi-metal such as boron or phosphorus.

[0141] The aerosol generating device 100 can accommodate the aerosol generating article 10. A space for accommodating the aerosol generating article 10 can be formed in the aerosol generating device 100. The space for accommodating the aerosol generating article 10 can be disposed with the heater 150. For example, the heater 150 can have a cylindrical accommodation space for accommodating the aerosol generating article 10 inside. Accordingly, in a case in which the aerosol generating article 10 is accommodated in the aerosol generating device 100, the aerosol generating article 10 can be accommodated in the accommodation space of the heater 150.

[0142] The heater 150 can surround at least a portion of the outer side surface of the aerosol generating article 10 received in the aerosol generating device 100. For example, the heater 150 can surround the aerosol generating stick 11 included in the aerosol generating article 10. Thereby, heat can be more effectively transferred from the heater 150 to the aerosol generating stick 11.

[0143] The heater 150 can heat the aerosol generating article 10 received in the aerosol generating device 100. As described above, the heater 150 can heat the aerosol generating article 10 in an induction heating manner. The heater 150 can include an inductive heating body substance that generates heat by an external magnetic field, and the aerosol generating device 100 can apply an alternating magnetic field to the heater 150.

[0144] The coil 151 can be equipped to the aerosol generating device 100. The coil 151 can apply an alternating magnetic field to the heater 150. In a case in which power is supplied from the aerosol generating device 100 to the coil 151, a magnetic field can be formed inside the coil 151. In a case in which an alternating current is applied to the coil 151, the direction of the magnetic field formed inside the coil 151 can continuously change. In a case in which the heater 150 is located inside the coil 151 and is exposed to the alternating magnetic field whose direction periodically changes, the heater 150 can generate heat, and the aerosol generating article 10 received in the receiving space of the heater 150 can be heated.

[0145] The coil 151 can be wound along the outer side surface of the heater 150. Also, the coil 151 can be wound along the inner surface of the outer case of the aerosol generating device 100. The heater 150 can be located in an inner space formed by the coil 151 being wound. In a case in which power is supplied to the coil 151, an alternating magnetic field generated by the coil 151 can be applied to the heater 150.

[0146] The coil 151 can extend in the length direction of the aerosol generating device 100. The coil 151 can extend an appropriate length in the length direction. For example, the coil 151 can extend to a length corresponding to the length of the heater 150, or can extend to a length longer than the length of the heater 150.

[0147] The coil 151 can be disposed at a position suitable for applying an alternating magnetic field to the heater 150. For example, the coil 151 can be disposed at a position corresponding to the heater 150. By the size and disposition of the coil 151 as described above, the efficiency of the application of the alternating magnetic field of the coil 151 to the heater 150 can be improved.

[0148] In a case where the amplitude or frequency of the alternating magnetic field formed by the coil 151 is changed, the degree to which the heater 150 heats the aerosol generating article 10 also changes. Since the amplitude or frequency of the magnetic field caused by the coil 151 can be changed by the power applied to the coil 151, the aerosol generating device 100 can control the heating of the aerosol generating article 10 by adjusting the power applied to the coil 151. For example, the aerosol generating device 100 can control the amplitude and frequency of the alternating current applied to the coil 151.

[0149] As one example, the coil 151 can be implemented by a solenoid. The coil 151 can be a solenoid wound along the inner surface of the outer case of the aerosol generating device 100, and the heater 150 and the aerosol generating article 10 can be located in the inner space of the solenoid. The material of the wire constituting the solenoid can be copper (Cu). However, it is not limited thereto, and any one of silver (Ag), gold (Au), aluminum (Al), tungsten (W), zinc (Zn), and nickel (Ni) or an alloy including at least one thereof can be the material of the wire constituting the solenoid.

[0150] The battery 140 can supply power to the aerosol generating device 100. The battery 140 can supply power to the coil 151. The battery 140 can include a battery that supplies direct current to the aerosol generating device 100 and a conversion part that converts the direct current supplied from the battery into alternating current supplied to the coil 151.

[0151] The battery 140 can supply direct current to the aerosol generating device 100. The battery 140 can be a lithium iron phosphate (LiFePO4) battery, but is not limited thereto. For example, the battery can be a lithium cobalt oxide (LiCoO2) battery, a lithium titanate battery, a lithium polymer (LiPoly) battery, or the like.

[0152] The conversion part can include a low-pass filter that performs filtering on the direct current supplied from the battery and outputs the alternating current supplied to the coil 151. The conversion part can further include an amplifier for amplifying the direct current supplied from the battery. For example, the conversion part can be implemented by a low-pass filter constituting a load network of a class-D amplifier.

[0153] The control part 110 can control the power supplied to the coil 151. The control part 110 can control the battery 140 to adjust the power supplied to the coil 151. For example, the control part 110 can perform control for maintaining the temperature of the heater 150 constant based on the temperature of the heater 150 for the heater 150 to heat the aerosol generating article 10.

[0154] Figure 8 is a block diagram of an aerosol generating device according to another embodiment.

[0155] The aerosol-generating device 100 can include a control portion 110, a sensing portion 120, an output portion 130, a battery 140, a heater 150, a user input portion 160, a storage 170, and a communication portion 180. However, the internal structure of the aerosol-generating device 100 is not limited to Figure 8 what is illustrated. That is, it can be understood by those skilled in the art to which the present embodiment pertains that, according to the design of the aerosol-generating device 100, some of the configurations Figure 8 illustrated can be omitted or new configurations can be added.

[0156] The sensing portion 120 can sense the state of the aerosol-generating device 100 or the state of the surroundings of the aerosol-generating device 100, and can deliver the sensed information to the control portion 110. The control portion 110 can control the aerosol-generating device 100 based on the sensed information to perform various functions such as controlling the operation of the heater 150, limiting smoking, determining whether an aerosol-generating article (e.g., a cigarette, a cartridge, etc.) is inserted, notification display, etc.

[0157] The sensing portion 120 can include at least one of a temperature sensor 122, an insertion sensing sensor 124, and a puffing sensor 126, but is not limited thereto.

[0158] The temperature sensor 122 can sense the temperature at which the heater 150 (or, an aerosol-generating material) is heated. The aerosol-generating device 100 can include a separate temperature sensor that senses the temperature of the heater 150, or the heater 150 itself can function as a temperature sensor. Alternatively, the temperature sensor 122 can also be disposed around the battery 140 to monitor the temperature of the battery 140.

[0159] The insertion sensing sensor 124 can sense the insertion and / or removal of an aerosol-generating article. For example, the insertion sensing sensor 124 can include at least one of a film sensor, a pressure sensor, a light sensor, a resistive sensor, a capacitive sensor, a flow sensor, and an infrared sensor, and can sense a signal change according to the insertion and / or removal of the aerosol-generating article.

[0160] The puffing sensor 126 can sense the user's puffing based on various physical changes in the airflow passage or the airflow channel. For example, the puffing sensor 126 can sense the user's puffing based on any one of a temperature change, a flow change, a voltage change, and a pressure change.

[0161] The sensing part 120 can further include at least one of a temperature / humidity sensor, a barometric 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 an RGB sensor (illuminance sensor), in addition to the aforementioned sensors 122 to 126. Since a person of ordinary skill can intuitively infer the functions of the respective sensors from the names of the sensors, a detailed description thereof will be omitted.

[0162] The output part 130 can output and provide information on the state of the aerosol generating device 100 to the user. The output part 130 can include at least one of a display part 132, a haptic part 134, and a sound output part 136, but is not limited thereto. In the case where the display part 132 and the touch panel form a layered structure to constitute a touch screen, the display part 132 can also function as an input device in addition to an output device.

[0163] The display part 132 can visually provide the user with information on the aerosol generating device 100. For example, the information on the aerosol generating device 100 can represent various information such as the charging / discharging state of the battery 140 of the aerosol generating device 100, the preheating state of the heater 150, the insertion / removal state of the aerosol generating article, or the state in which the use of the aerosol generating device 100 is restricted (e.g., an abnormal article is sensed), and the like, and the display part 132 can output the above information to the outside. For example, the display part 132 can be, for example, a liquid crystal display panel (LCD), an organic light emitting diode display panel (OLED), or the like. Also, the display part 132 can be in the form of an LED light emitting element.

[0164] The haptic part 134 can convert an electrical signal into a mechanical or electrical stimulus and haptically provide the user with information on the aerosol generating device 100. For example, the haptic part 134 can include a motor, a piezoelectric element, or an electrical stimulus device.

[0165] The sound output part 136 can audibly provide the user with information on the aerosol generating device 100. For example, the sound output part 136 can convert an electrical signal into a sound signal and output the sound signal to the outside.

[0166] The battery 140 can supply power for operating the aerosol-generating device 100. The battery 140 can supply power to enable heating of the heater 150. Also, the battery 140 can supply power required for operation of other constituents (the sensing part 120, the output part 130, the user input part 160, the memory 170, and the communication part 180) equipped within the aerosol-generating device 100. The battery 140 can be a rechargeable battery or a primary battery. For example, the battery 140 can be a lithium polymer (LiPoly) power source, but is not limited thereto.

[0167] The heater 150 can receive power from the battery 140 to heat the aerosol-generating substance. Although not shown in FIG. 1, the aerosol-generating device 100 can further include a power conversion circuit (e.g., a DC / DC converter) that converts power of the battery 140 and supplies the same to the heater 150. Also, in the case where the aerosol-generating device 100 generates an aerosol in an induction heating manner, the aerosol-generating device 100 can further include a DC / AC converter that converts a direct current power source of the battery 140 into an alternating current power source. Figure 8

[0168] The control part 110, the sensing part 120, the output part 130, the user input part 160, the memory 170, and the communication part 180 can perform functions by receiving power from the battery 140. Although not shown in FIG. 1, a power conversion circuit (e.g., a low dropout (LDO) circuit or a voltage regulator circuit) that converts power of the battery 140 and supplies the same to each constituent element can be further included. Figure 8

[0169] In an embodiment, the heater 150 can be formed of any suitable resistive substance. For example, the suitable resistive substance can be a metal or a metal alloy including titanium, zirconium, tantalum, platinum, nickel, cobalt, chromium, hafnium, niobium, molybdenum, tungsten, tin, gallium, manganese, iron, copper, stainless steel, nickel-chromium, or the like, but is not limited thereto. Also, the heater 150 can be implemented by a metal heating wire, a metal heating plate on which a conductive track is disposed, a ceramic heating element, or the like, but is not limited thereto.

[0170] In another embodiment, the heater 150 can be a heater of an induction heating type. For example, the heater 150 can include an induction heating element that heats an aerosol-generating substance by generating heat through a magnetic field applied by a coil.

[0171] ​​The user input portion 160 can receive information input from a user, or can output information to the user. For example, the user input portion 160 can have a key pad, a dome switch, a touch pad (a contact type capacitive method, a pressure type resistive film method, an infrared sensing method, a surface acoustic wave transmission method, an integral type tension measurement method, a piezoelectric effect method, etc.), an adjusting wheel, a jog switch, etc., but is not limited thereto. Also, although not shown in the drawings, the aerosol generating device 100 can further include a connection interface such as a universal serial bus (USB) interface, and can be connected with other external devices through the connection interface such as the USB interface, thereby transmitting / receiving information or charging the battery 140. Figure 8

[0172] The memory 170 is hardware for storing various data processed within the aerosol generating device 100, and can store data processed in the control portion 110 and data to be processed. The memory 170 can include at least one type of storage medium among a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, an SD (secure digital) or XD (extreme digital) 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, an optical disk. The memory 170 can store data of a working time, a maximum number of puffs, a current number of puffs, at least one temperature profile, and a smoking pattern of a user of the aerosol generating device 100, etc.

[0173] The communication portion 180 can include at least one constituent element for communication with other electronic devices. For example, the communication portion 180 can include a short distance communication portion 182 and a wireless communication portion 184.

[0174] ​The short-range wireless communication unit 182 can include a Bluetooth communication unit, a Bluetooth Low Energy (BLE) communication unit, a Near Field Communication unit, a wireless local area network (WLAN) (Wireless Fidelity (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, or the like, but is not limited thereto.

[0175] The wireless communication unit 184 can include 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, or the like, but is not limited thereto. The wireless communication unit 184 can also confirm and authenticate the aerosol generating device 100 within a communication network using user information (e.g., an International Mobile Subscriber Identity (IMSI)).

[0176] The control unit 110 can control the overall operation of the aerosol generating device 100. In an embodiment, the control unit 110 can include at least one processor. The processor can be implemented by an array of a plurality of logic gates, or by a combination of a general-purpose microprocessor and a memory in which a program executable in the microprocessor is stored. Also, as long as it is understood by one of ordinary skill in the art to which the present embodiment pertains, it can also be implemented in other forms of hardware.

[0177] The control unit 110 can control the temperature of the heater 150 by controlling the supply of power to the heater 150 from the battery 140. For example, the control unit 110 can control the supply of power by controlling the switching of a switching element between the battery 140 and the heater 150. In another embodiment, the control unit 110 can also control the supply of power to the heater 150 from the heating integrated circuit according to a control command.

[0178] The control unit 110 can analyze the result sensed by the sensing unit 120 and control the process to be performed thereafter. For example, the control unit 110 can control the power supplied to the heater 150 based on the result sensed by the sensing unit 120 to start or end the operation of the heater 150. As another example, the control unit 110 can control the amount of power supplied to the heater 150 and the power supply time based on the result sensed by the sensing unit 120 to heat the heater 150 to a predetermined temperature or maintain an appropriate temperature.

[0179] The control portion 110 can control the output portion 130 based on a result sensed by the sensing portion 120. For example, if the number of puffs counted by the puff sensor 126 reaches a set number of times, the control portion 110 can give a user a warning that the aerosol-generating device 100 is about to end through at least one of the display portion 132, the haptic portion 134, and the sound output portion 136.

[0180] Certain embodiments of the disclosure described above or other embodiments are not mutually exclusive or clearly different from each other. The constituent elements or functions of each of certain embodiments of the disclosure described above or other embodiments can be used or combined.

[0181] For example, this means that an A constituent element described in a specific embodiment and / or a drawing can be combined with a B constituent element described in another embodiment and / or a drawing. That is, this means that even in the case where a combination between constituent elements is not directly described, a combination can be made except for the case where it is described as impossible to combine.

[0182] The above detailed description is to be considered as merely illustrative of a number of ways by which the application can be implemented. It can be appreciated that all specific examples described above and below are supplied merely to better describe and to disclose the application, and are not intended to limit the scope of the application. Various modifications, enhancements, and alterations can be made to the above-described embodiments without departing from the spirit and scope of the application.

Claims

1. A capsule that is a capsule for an aerosol-generating article that releases an active material by exposure to an alternating magnetic field, wherein the capsule includes a core that includes the active material and a shell that surrounds the core, at least one of the core and the shell includes at least one induction heat generator particle that is heated by exposure to the alternating magnetic field. 2.The capsule according to claim 1, wherein the active material includes one or more selected from the group consisting of nicotine, caffeine, an aerosol-generating material, and a flavoring material. 3.The capsule according to claim 1, wherein the shell includes a lipid bilayer. 4.The capsule according to claim 1, wherein at least a portion of a surface of the induction heat generator particle is coated with one or more selected from the group consisting of a lipid, oleic acid, starch, and silicon dioxide. 5.The capsule according to claim 1, wherein the capsule has a diameter of 1 μm to 50 μm. 6.The capsule according to claim 1, wherein the induction heat generator particle has a diameter of 1 nm to 100 nm. 7.The capsule according to claim 1, wherein the shell includes a plurality of the induction heat generator particles, the shell includes a film material in which a plurality of the induction heat generator particles are dispersedly arranged. 8.The capsule according to claim 7, wherein the film material includes one or more selected from the group consisting of carbon nanotubes, silicon dioxide, aluminum hydroxide, titanium dioxide, and calcium carbonate. 9.The capsule according to claim 7, wherein a total weight of the plurality of the induction heat generator particles is 5% to 10% by weight of a total weight of the film material. 10.The capsule according to claim 1, wherein a weight of the active material and a weight of the shell have a ratio of 7:3 to 4:

6. 11.The capsule according to claim 1, wherein the shell has a thickness of 100 nm to 500 nm. 12.An aerosol-generating article, comprising: the capsule according to claim 1 and an aerosol-generating material that is heated to generate an aerosol. 13.The aerosol-generating article according to claim 12, wherein the aerosol-generating article includes a plurality of the capsules, a difference between a diameter of the capsule and an average diameter of the plurality of the capsules is -10% to 10% of the average diameter of the plurality of the capsules. 14.The aerosol-generating article according to claim 12, wherein the aerosol-generating article includes an aerosol-generating rod that includes the aerosol-generating material and the capsule and a filter rod arranged downstream of the aerosol-generating rod. 15.An aerosol-generating system, comprising: the aerosol-generating article according to claim 12; and an aerosol-generating device that includes a housing space into which the aerosol-generating article is inserted and that applies an alternating magnetic field to the housing space. ​

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