Aerosol-generating article

Abstract

An aerosol generating article according to one aspect of the present disclosure can include a tobacco medium portion, a filter portion disposed to be spaced apart from the tobacco medium portion, a cooling portion disposed between the tobacco medium portion and the filter portion, and a heat transfer portion surrounding at least a portion of the cooling portion.

Description

TECHNICAL FIELD

[0001] The disclosure relates to an aerosol generating article and an aerosol generating device. BACKGROUND

[0002] In general, tobacco refers to a perennial herb of the Solanaceae family, and in recent years, it also refers to a product manufactured for smoking and including tobacco leaves in a cigarette paper and a filter at one side. There are tens of thousands of tobacco products in the global market, and they have various shapes and forms.

[0003] In the case of a combustion-type tobacco product such as a cigarette, a cigar, and a water pipe, tobacco smoke contains many components such as tar, nitrosamines, hydrocarbons, and carbon monoxide in addition to an aerosol containing nicotine.

[0004] As an alternative to compensate for the disadvantages of such a combustion-type tobacco, a method of generating an aerosol by heating an aerosol generating material in a cigarette instead of burning the cigarette is widely used, and the demand for such a method is increasing. To meet such a demand, research on a heating-type cigarette or a heating-type aerosol generating device is actively ongoing.

[0005] In detail, an aerosol generating device has a form similar to that of a conventional combustion-type tobacco product, and generates mainstream smoke containing an aerosol by heating an aerosol generating material in a heating-type cigarette through measures such as a heater or ultrasonic vibration. The aerosol generating device has the advantage of minimizing the emission of components such as tar while being able to provide a smoking satisfaction to a smoker, and thus is attracting attention as a new market to replace a conventional combustion-type tobacco product.

[0006] However, a heating-type cigarette heated by an aerosol generating device generates high-temperature mainstream smoke within the cigarette, and the high-temperature aerosol can be directly delivered to a user. The high-temperature mainstream smoke can cause a user to feel uncomfortable or be burned. Alternatively, when the heating-type cigarette is not uniformly heated, the aerosol can not flow effectively inside the cigarette. SUMMARY

[0007] TECHNICAL PROBLEM

[0008] Accordingly, the disclosure has been made in consideration of the above-mentioned problems occurring in the prior art, and the object of the disclosure is to provide an aerosol generating article capable of preventing a user from feeling uncomfortable or being burned.

[0009] Another object of the disclosure is to provide an aerosol generating article capable of uniformly heating a tobacco medium portion, thereby improving the generation of a rich aerosol.

[0010] Solution to the problem

[0011] According to one aspect of the present disclosure, there is provided an aerosol generating article including: a tobacco medium portion; a filter portion arranged to be spaced apart from the tobacco medium portion; a cooling portion provided between the tobacco medium portion and the filter portion; and a heat transfer portion surrounding at least a portion of the cooling portion.

[0012] Advantages of the present invention

[0013] As described above, the aerosol generating article according to one aspect of the present disclosure can prevent a user from feeling uncomfortable or being burned by high-temperature mainstream smoke.

[0014] In addition, the tobacco medium portion can be uniformly heated, thereby improving the generation of rich aerosol. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 FIG. 1 is a schematic perspective exploded view illustrating an aerosol generating article according to a first embodiment of the present disclosure.

[0016] Figure 2 FIG. 2 is a schematic perspective view illustrating an aerosol generating article according to the first aspect of the present disclosure.

[0017] Figure 3 FIG. 3 is an enlarged view of the inside of the section A shown in FIG. 2. Figure 2

[0018] Figure 4 FIG. 4 is a cross-sectional view illustrating an aerosol generating article according to the first embodiment of the present disclosure.

[0019] Figure 5 FIG. 5 is an illustration of a process of heating a tobacco medium portion by inserting a heater into an aerosol generating article according to the first aspect of the present disclosure.

[0020] Figure 6 FIG. 6 is an illustration of a process of heating a tobacco medium portion by inserting a heater into an aerosol generating article according to the related art.

[0021] Figures 7 to 9 FIG. 7 is an illustration of a modified example of a heat transfer portion of an aerosol generating article according to the first embodiment of the present disclosure.

[0022] Figure 10 FIG. 8 is an illustration of a modified example of a tobacco medium portion of an aerosol generating article according to the first embodiment of the present disclosure.

[0023] Figure 11 FIG. 9 is an illustration of Figure 10 ​The illustration shows an example of a modified heat transfer section.

[0024] Figures 12 to 14 This is an illustration showing a modified example of the heat transfer portion of an aerosol-generating article according to a first embodiment of the present disclosure.

[0025] Figure 15 This is a cross-sectional view showing an aerosol-generated article according to a second embodiment of the present disclosure.

[0026] Figures 16 to 18 This is an illustration showing a modified example of the tobacco medium portion of an aerosol-generating article according to a second embodiment of the present disclosure.

[0027] Figure 19 It shows Figure 15 An illustration of a modified example of the filter portion of the aerosol-generating article shown.

[0028] Figure 20 This is a diagram illustrating the process by which a heater in an aerosol generating apparatus heats an aerosol-generated article according to the prior art.

[0029] Figure 21 This is a diagram illustrating the process by which the heater of the aerosol generating apparatus heats the aerosol generating article according to the second embodiment of this disclosure.

[0030] Figure 22 This is a schematic diagram showing the configuration of an aerosol generating apparatus in which an aerosol generating article according to the first embodiment of the present disclosure is inserted.

[0031] Figure 23 It shows Figure 22 An illustration of a modified example of the aerosol generating apparatus shown.

[0032] By convention, the various features shown in the accompanying drawings may not be drawn to scale. Therefore, for clarity, the dimensions of various features may be arbitrarily enlarged or reduced. Additionally, some figures in the drawings may not depict all components of a given system, method, or apparatus. Finally, similar reference numerals may be used throughout the specification and drawings to denote similar features. Detailed Implementation

[0033] Best solution for carrying out the present invention

[0034] According to one aspect of this disclosure, an aerosol generating article may include: a tobacco medium portion; a filter portion disposed spaced apart from the tobacco medium portion; a cooling portion disposed between the tobacco medium portion and the filter portion; and a heat transfer portion surrounding at least a portion of the cooling portion.

[0035] According to some embodiments, the heat transfer portion can extend from an inlet of the cooling portion that is in contact with the tobacco medium portion.

[0036] According to some embodiments, the cooling portion can include a first cooling section that is in contact with the tobacco medium portion and a second cooling section that is disposed between the first cooling section and the filter portion.

[0037] According to some embodiments, the heat transfer portion can extend from an inlet that is in contact with the tobacco medium portion and can surround at least a portion of the first cooling section.

[0038] According to some embodiments, the heat transfer portion can surround at least a portion of the second cooling section.

[0039] According to some embodiments, the first cooling section can include cellulose acetate tow, and the second cooling section can include a paper material.

[0040] According to some embodiments, the cooling portion can have a tubular shape.

[0041] According to some embodiments, the tobacco medium portion can include a plurality of sections.

[0042] According to some embodiments, at least one section of the plurality of sections can include a tobacco medium.

[0043] According to some embodiments, the heat transfer portion can be in the form of a metal foil.

[0044] According to some embodiments, the heat transfer portion can include at least one of aluminum, copper, ferrite, and martensite.

[0045] According to some embodiments, the heat transfer portion can include a plurality of metal strips.

[0046] According to some embodiments, the plurality of metal strips can be spaced apart from each other.

[0047] According to some embodiments, the plurality of metal strips can be arranged in parallel with an extension direction of the cooling portion.

[0048] According to some embodiments, the plurality of metal strips can be arranged to be inclined with respect to the extension direction of the cooling portion.

[0049] According to some embodiments, the aerosol-generating device according to another aspect of the disclosure can include a heater for heating at least a portion of an aerosol-generating article, a power supply for supplying power to the heater, and a controller for controlling power supplied to the power supply.

[0050] According to some embodiments, the aerosol generating apparatus may further include an aerosol generator for generating aerosols by heating a liquid composition. The aerosols generated by the aerosol generator can be incorporated into an aerosol-generated article.

[0051] Solution for this invention

[0052] Reference will now be made in detail to various embodiments of this disclosure, specific examples of which are illustrated in the accompanying drawings and described below, as embodiments of this disclosure can be modified in many different forms. However, this disclosure should not be construed as limited to the embodiments set forth herein, but rather as encompassing modifications, equivalents, or alternatives that fall within the spirit and scope of this disclosure.

[0053] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used herein, the singular form is intended to include the plural form as well, unless otherwise expressly indicated. It will also be understood that the terms “comprising,” “including,” “having,” etc., as used in this application, indicate the presence of the stated features, integers, steps, operations, elements, components, and / or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or combinations thereof.

[0054] In the following, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. Throughout the drawings, the same reference numerals will denote the same or similar elements or parts. Furthermore, it should be noted that detailed descriptions of conventional elements and elements related to the present disclosure will be omitted where such descriptions might obscure the key points of the disclosure. For the same reason, some components will be exaggerated, omitted, or shown schematically in the drawings.

[0055] In the following, an aerosol generating article according to an embodiment of the present disclosure will be described.

[0056] Figure 1 This is a schematic exploded perspective view showing an aerosol-generating article according to a first embodiment of the present disclosure. Figure 2 This is a schematic perspective view showing an aerosol-generating article according to a first embodiment of the present disclosure. Figure 3 It is along Figure 2 The enlarged cross-sectional view of section A shown in the figure. Figure 4 This is a side cross-sectional view showing an aerosol-generated article according to a first embodiment of the present disclosure.

[0057] Reference Figures 1 to 4According to the first embodiment of the present disclosure, the aerosol generating article 100 can include a tobacco medium portion 110, a cooling portion 130, a filter portion 150, and a wrapper 170. Herein, it will be understood by one of ordinary skill in the art that other general components in addition to those shown in FIG. 1 can also be included in the aerosol generating article 100. Figures 1 to 4

[0058] The aerosol generating article 100 according to the present embodiment can be heated by being inserted into an aerosol generating device 300 (see Figure 22 and Figure 23 ) to be described below. In this case, when the aerosol generating article 100 is heated, mainstream smoke can be delivered to a user. The mainstream smoke can be an airflow that flows from an upstream to a downstream inside the aerosol generating article 100. Herein, the term "upstream" can mean a side toward which the tobacco medium portion 110 is located, and the term "downstream" can mean a side toward which the filter portion 150 is located. A user of the aerosol generating article 100 can inhale the mainstream smoke through a downstream end of the aerosol generating article 100.

[0059] The aerosol generating article 100 can have a cylindrical shape. In this case, the aerosol generating article 100 can have a diameter in a range of 4.7 mm to 9.9 mm. Each of the tobacco medium portion 110, the cooling portion 130, and the filter portion 150 can also have a cylindrical shape with a diameter of 4.7 mm to 9.9 mm.

[0060] In addition, the aerosol generating article 100 can have a length in a range of 31 mm to 60 mm. The tobacco medium portion 110 can have a length in a range of 17 mm to 30 mm. The cooling portion 130 can have a length in a range of 4 mm to 10 mm, and the filter portion 150 can have a length in a range of 10 mm to 20 mm.

[0061] The shape, diameter, and length of the aerosol generating article 100 and the components of the aerosol generating article 100 are exemplary, and the present disclosure is not necessarily limited thereto. The shape and size of the aerosol generating article 100 can be partially modified within a range that can be adopted by one of ordinary skill in the art.

[0062] The tobacco medium portion 110 is located at an upstream side of the aerosol generating article 100 and can include a tobacco medium that generates an aerosol. The tobacco medium of the tobacco medium portion 110 includes nicotine, thereby providing a unique taste and aroma of a cigarette to a user inhaling the mainstream smoke.

[0063] ​When the aerosol generating article 100 is heated by the aerosol generating device 300 described below and the aerosol generated by the aerosol generating device 300 is introduced into the aerosol generating article 100, nicotine can be absorbed by the aerosol while the aerosol passes through the tobacco medium portion 110 and delivered to the user.

[0064] Here, the nicotine contained in the tobacco medium can be at least one of freebase nicotine or a nicotine salt, and the nicotine can be naturally occurring nicotine or synthetic nicotine.

[0065] The nicotine salt can be formed by adding a suitable acid including an organic acid or an inorganic acid to nicotine. The acid used to form the nicotine salt can be appropriately selected in consideration of blood nicotine absorption rate, heating temperature of the heater, flavor, solubility, etc. For example, the acid used to form the nicotine salt can be one selected from the group consisting of benzoic acid, lactic acid, salicylic acid, lauric acid, sorbic acid, levulinic acid, pyruvic acid, formic acid, acetic acid, propionic acid, butyric acid, valeric acid, hexanoic acid, octanoic acid, decanoic acid, citric acid, myristic acid, palmitic acid, stearic acid, oleic acid, linoleic acid, linolenic acid, phenylacetic acid, tartaric acid, succinic acid, fumaric acid, gluconic acid, saccharic acid, malonic acid, and malic acid, or a mixture of at least two selected from the group consisting of the above, but is not necessarily limited thereto.

[0066] Meanwhile, the tobacco medium of the tobacco medium portion 110 can be manufactured in various forms. For example, the tobacco medium can be manufactured in the form of a sheet or a rod. In addition, the tobacco medium can be manufactured in the form of tobacco threads obtained by finely cutting a tobacco sheet. In addition, the tobacco medium can be manufactured in the form of particles containing tobacco.

[0067] The tobacco medium portion 110 can have a cylindrical shape. However, the shape of the tobacco medium portion 110 is not necessarily limited thereto and can adopt a rod shape having various cross sections.

[0068] In this case, the tobacco medium portion 110 can be manufactured by folding a tobacco sheet into a cylindrical shape or by molding a tobacco rod, a tobacco thread, or a tobacco particle into a cylindrical shape.

[0069] When the tobacco medium portion 110 is manufactured from a plurality of tobacco rods obtained by finely cutting a tobacco sheet, the tobacco medium portion 110 can be formed by binding the plurality of tobacco rods in the same direction (parallel to each other) or freely binding the plurality of tobacco rods. In detail, the tobacco medium portion 110 can be formed by binding the plurality of tobacco rods, and a plurality of longitudinal channels for allowing the aerosol to pass therethrough can be formed. In this case, the longitudinal channels can be uniform or non-uniform according to the size and arrangement structure of the tobacco rods.

[0070] The tobacco medium portion 110 can further include an aerosol generating material to increase an atomization amount. 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, but is not necessarily limited thereto.

[0071] The tobacco medium portion 110 can further include a flavor material to add a flavor to an aerosol. For example, the tobacco medium portion 110 can include other additives such as a flavoring agent, a wetting agent, and / or an organic acid. In addition, a flavor liquid such as menthol or a moisturizer can be added to the tobacco medium portion 110 by spraying the flavor liquid onto the tobacco medium portion 110.

[0072] In this case, the flavoring agent can include liquorice, sucrose, fructose syrup, iso sweet, cocoa, lavender, cinnamon, cardamom, celery, fenugreek, cascarilla, sandalwood, bergamot, geranium, honey essence, rose oil, vanilla, lemon oil, orange oil, peppermint oil, cinnamon, dill, brandy, jasmine, chamomile, menthol, cinnamon, ylang-ylang, salvia, spearmint, ginger, coriander, or coffee. In addition, the wetting agent can further include glycerin or propylene glycol.

[0073] In some embodiments, the tobacco medium portion 110 can include at least one segment. For example, the tobacco medium portion 110 can include one segment or two segments. In detail, according to the embodiment shown in Figure 4 The tobacco medium portion 110 according to the embodiment shown in Figure 10 and Figure 11 may include two segments.

[0074] Referring to Figure 4 , the tobacco medium portion 110 according to the embodiment can include one segment. The segment of the tobacco medium portion 110 can be filled with a tobacco medium. In other words, in the present embodiment, the tobacco medium portion 110 can include one segment filled with a tobacco medium.

[0075] In this case, the segment can be manufactured by folding a tobacco sheet into a cylindrical shape or molding a tobacco rod, tobacco thread, or tobacco granules into a cylindrical shape. In addition, the segment can further include an aerosol generating material to increase an atomization amount and / or a flavor material.

[0076] In addition, the segment of the tobacco medium portion 110 can be heated by a heater 370 (see Figure 22 ) for heating the aerosol generating article 100 coupled to the aerosol generating device 300. In Figure 22In addition, the heater 370 can be inserted into the aerosol generating article 100 to heat the tobacco medium portion 110.

[0077] Meanwhile, in the example shown in Figure 10 and Figure 11 , the tobacco medium portion 110 can include two segments. One of the two segments can include a tobacco medium, and the other segment can not include a tobacco medium.

[0078] Referring to Figure 10 and Figure 11 , each tobacco medium portion 110 can include a first tobacco segment 111 and a second tobacco segment 113. The first tobacco segment 111 is a segment filled with a tobacco medium, and the first tobacco segment 111 can be made of the same material as that of the above-described segment of the tobacco medium portion 110 shown in Figure 4 .

[0079] The second tobacco segment 113 can be located at the upstream end of the aerosol generating article 100, and the second tobacco segment 113 can prevent the first tobacco segment 111 from being separated from the aerosol generating article 100. In other words, the tobacco medium portion 110 according to some embodiments can be configured such that the second tobacco segment 113 and the first tobacco segment 111 are arranged in sequence from the upstream end of the aerosol generating article 100.

[0080] The second tobacco segment 113 can prevent the introduction of impurities from the outside into the first tobacco segment 111, and the second tobacco segment 113 can prevent the introduction of liquefied aerosol into the aerosol generating device 300 (see Figure 22 or Figure 23 ) during smoking.

[0081] In addition, when the aerosol generating article 100 is inserted into the aerosol generating device 300, the second tobacco segment 113 can support the aerosol generating article 100 such that the aerosol generating article 100 is fixed to the aerosol generating device 300.

[0082] The second tobacco segment 113 can be a cellulose acetate filter. For example, the second tobacco segment 113 can be manufactured by adding a plasticizer such as glyceryl triacetate to a cellulose acetate tow. In addition, an aerosol generating material can be included in the cellulose acetate tow.

[0083] Nicotine can be removed from the aerosol-generating substance included in the second tobacco section 113. For example, the second tobacco section 113 can include at least one of glycerin, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol. However, the aerosol-generating substance included in the second tobacco section 113 is not necessarily limited thereto. For example, the second tobacco section 113 can include a material in which glycerin and propylene glycol are mixed at a ratio of about 8:2. However, the above-described mixing ratio is exemplary, and the present disclosure is not necessarily limited thereto.

[0084] In addition, the second tobacco section 113 can include other additives such as a flavoring agent, a wetting agent, and / or an organic acid. However, the material and type of the second tobacco section 113 are not necessarily limited thereto, and can be modified within a range that can be employed by one of ordinary skill in the art.

[0085] The second tobacco section 113 can have a through-hole to allow an aerosol from the outside to be introduced through the through-hole to form mainstream smoke inside the aerosol-generating article 110. The through-hole formed in the second tobacco section 113 can have a ring-shaped or Y-shaped cross-section. However, the cross-sectional shape of the through-hole is not necessarily limited thereto, and can take various forms.

[0086] Meanwhile, in some embodiments, for example, when the second tobacco section 113 includes a crimped sheet impregnated with an aerosol-generating substance, a through-hole can not be formed in the second tobacco section 113.

[0087] When a portion of the aerosol-generating article 110 is inserted into the aerosol-generating device 300 (see Figure 23 ), an aerosol generated by the aerosol-generating device 300 can be introduced into the aerosol-generating article 100 through the second tobacco section 113. The aerosol thus introduced can form mainstream smoke in the aerosol-generating article 100 and be delivered to a user. In addition, an aerosol generated inside the second tobacco section 113 including an aerosol-generating substance can form mainstream smoke and be delivered to a user.

[0088] In this case, the heater 390 of the aerosol-generating device 300 can be disposed around the tobacco medium portion 110 and can heat the tobacco medium portion 110. In addition, the heat transfer portion 190 can surround the first cooling section 131 of the cooling portion 130, or can surround a portion of the second cooling section 133 as well as the first cooling section 131. A detailed description of the heat transfer portion 190 will be provided below.

[0089] Referring back to Figures 1 to 4In the present embodiment, the filter portion 150 can be located at the downstream end of the aerosol generating article 100 to be spaced apart from the tobacco medium portion 110. The filter portion 150 can filter out at least one of the substances contained in the mainstream smoke.

[0090] The filter portion 150 can be a cellulose acetate filter, and the filter portion 150 can be manufactured by adding a plasticizer such as glyceryl triacetate to a cellulose acetate tow. However, the material and type of the filter portion 150 are not necessarily limited thereto, and can be modified within a range that can be employed by those skilled in the art.

[0091] The filter portion 150 can have a cylindrical shape. However, the shape of the filter portion 150 is not necessarily limited thereto, and can adopt various shapes in conformity with the shape of the tobacco medium portion 110.

[0092] The filter portion 150 can be manufactured to generate a flavor. For example, a flavor liquid can also be sprayed onto the filter portion 150, or the inside of the filter portion 150 can include a separate fiber coated with a flavor liquid.

[0093] Alternatively, the filter portion 150 can include at least one capsule (not shown). The capsule can generate a flavor or an aerosol. For example, the capsule can have a structure in which a liquid containing a flavor is encapsulated with a film. In this case, the capsule can have a spherical or cylindrical shape, but the shape of the capsule is not necessarily limited thereto.

[0094] In the aerosol generating article 100 according to the present embodiment, the cooling portion 130 can be interposed between the tobacco medium portion 110 and the filter portion 150, and the cooling portion 130 can cool the high-temperature aerosol passing therethrough. The high-temperature aerosol from the tobacco medium portion 110 can be cooled while moving inside the cooling portion 130, and the cooled aerosol can pass through the filter portion 150 and be delivered to the user. Thereby, the high-temperature aerosol can be prevented from being directly delivered to the user.

[0095] In the present embodiment, the cooling portion 130 can include a first cooling segment 131 and a second cooling segment 133. In other words, the cooling portion 130 can include two segments. However, the cooling portion 130 is not necessarily limited thereto, and can include at least two segments.

[0096] The first cooling segment 131 and the second cooling segment 133 can be sequentially arranged adjacent to the tobacco medium portion 110. In detail, the first cooling segment 131 can be arranged adjacent to the tobacco medium portion 110, and the second cooling segment 133 can be arranged between the first cooling segment 131 and the filter portion 150. In other words, in the present embodiment, the tobacco medium portion 110, the first cooling segment 131, the second cooling segment 133, and the filter portion 150 can be sequentially arranged from the upstream end toward the downstream end.

[0097] The first cooling segment 131 can cool the aerosol from the tobacco medium portion 101, and the first cooling segment 131 can prevent the tobacco medium of the tobacco medium portion 110 from being separated toward the second cooling segment 133. For example, when the heater 370 (see FIG. 3) for heating the aerosol generating article 110 is inserted into the tobacco medium portion 110, the tobacco medium in the tobacco medium portion 110 can be separated and moved toward the second cooling segment 133. Since the first cooling segment 131 is arranged between the tobacco medium portion 110 and the second cooling segment 133, the tobacco medium in the tobacco medium portion 110 can be prevented from being separated toward the second cooling segment 133. Figure 22 ) is inserted into the tobacco medium portion 110, the tobacco medium in the tobacco medium portion 110 can be separated and moved toward the second cooling segment 133. Since the first cooling segment 131 is arranged between the tobacco medium portion 110 and the second cooling segment 133, the tobacco medium in the tobacco medium portion 110 can be prevented from being separated toward the second cooling segment 133.

[0098] The first cooling segment 131 can be manufactured by adding a plasticizer such as triacetin to a cellulose acetate tow. In addition, an aerosol generating material can be included in the cellulose acetate tow.

[0099] The first cooling segment 131 can include at least one of glycerol, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol. However, the aerosol generating material included in the first cooling segment 131 is not necessarily limited thereto. For example, the first cooling segment 131 can include a material in which glycerol and propylene glycol are mixed at a ratio of about 8:2. However, the above-described mixing ratio is exemplary, and the present disclosure is not necessarily limited thereto.

[0100] In addition, the first cooling segment 131 can include other additives such as a flavoring agent, a wetting agent, and / or an organic acid. However, the material and type of the first cooling segment 131 are not necessarily limited thereto, and can be modified within a range that can be employed by a person skilled in the art.

[0101] The first cooling segment 131 can have a through-hole to allow the aerosol from the tobacco medium portion 110 to be introduced therethrough to form mainstream smoke inside the aerosol generating article 110. The through-hole formed in the first cooling segment 131 can have a ring-shaped or Y-shaped cross-section. However, the cross-sectional shape of the through-hole is not necessarily limited thereto, and can take various forms.

[0102] The second cooling section 133 can be disposed between the first cooling section 131 and the filter portion 150, and can further cool the aerosol passing through the first cooling section 131.

[0103] The second cooling section 133 can have a tubular shape to allow the aerosol to pass therethrough. In detail, the second cooling section 133 can have a through-hole T therein. The through-hole T is a space formed in the center of the second cooling section 133, and can allow the aerosol to move from the tobacco medium portion 110 to the filter portion 150 through the through-hole T. In the present embodiment, the diameter of the through-hole T of the second cooling section 133 can be greater than the diameter of the through-hole of the first cooling section 131. However, the diameter of the through-hole T of the second cooling section 133 is not necessarily limited thereto, and can be equal to or less than the diameter of the through-hole of the first cooling section 131.

[0104] The high-temperature aerosol introduced into the inlet of the second cooling section 133 can be cooled while passing through the through-hole T of the second cooling section 133. In the process of cooling the aerosol, a portion of heat contained in the aerosol can pass through the body of the second cooling section 133 and be discharged to the outside. In this case, a separate member including polylactic acid (PLA) can be disposed in the through-hole of the second cooling section 133. For example, the inside of the through-hole T can be at least partially filled with PLA.

[0105] The body of the second cooling section 133 can be manufactured by adding a plasticizer such as triacetin to a cellulose acetate tow. Alternatively, the body of the second cooling section 133 can be made of a laminated paper including a plurality of paper layers. For example, the body can be made of a laminated paper including an outer paper layer, an intermediate paper layer, and an inner paper layer, but is not necessarily limited thereto, and the body can be made of a single layer of paper. In this case, the inside of the laminated paper can be coated with a cooling material or can have a cooling film attached thereto. Here, the cooling material or the cooling film can include various materials having high thermal efficiency. However, the material and type of the body of the second cooling section 133 are not necessarily limited thereto, and can be modified within a range that can be employed by those skilled in the art.

[0106] When the body of the second cooling section 133 is made of a cellulose acetate tow, the single denier of the filaments constituting the cellulose acetate tow can be in the range of 3 to 20. Preferably, the single denier of the filaments of the body is in the range of 9 to 12.

[0107] In addition, the filaments constituting the body of the second cooling section 133 can have a Y-shaped cross-section. Here, the term "filament" can mean a long fiber bundle constituting a cellulose acetate tow.

[0108] Meanwhile, the body of the second cooling section 133 can include other additives such as flavoring agents, wetting agents, and / or organic acids. In this case, the flavoring agents can include liquorice, sucrose, fructose syrup, iso sweet, cocoa, lavender, cinnamon, cardamom, celery, fenugreek, cascarilla, sandalwood, bergamot, geranium, honey essence, rose oil, vanilla, lemon oil, orange oil, peppermint oil, cinnamon, dill, brandy, jasmine, chamomile, menthol, cinnamon, ylang-ylang, salvia, spearmint, ginger, coriander, or coffee. Also, the wetting agents can further include glycerin or propylene glycol.

[0109] The body of the second cooling section 133 can have a ring-shaped cross-section due to the through hole T. In this case, the inner diameter of the body can be equal to or greater than 2 mm. Preferably, the inner diameter of the body is in the range of 3.8 mm to 4.2 mm.

[0110] Here, the body of the second cooling section 133 can have a plurality of openings 160 for allowing external air to be introduced through the openings 160 or internal air to be discharged through the openings 160. The plurality of openings 160 can be formed to be spaced apart from each other in the circumferential direction of the body.

[0111] In the present embodiment, the plurality of openings 160 can be arranged toward the inlet side of the second cooling section 133, i.e., the side adjacent to the first cooling section 131. The aerosol passing through the second cooling section 133 can be further cooled by the external air introduced through the plurality of openings 160. Accordingly, the aerosol introduced to the filter portion 150 can be cooled again, so that the high-temperature aerosol can be prevented from being directly inhaled into the user's mouth.

[0112] In the present embodiment, although it is described that the plurality of openings 160 are arranged at the inlet side of the second cooling section 133, the position of the plurality of openings 160 is not necessarily limited thereto. The plurality of openings 160 can be arranged at another position along the second cooling section 133, for example, the plurality of openings 160 can be arranged at a position toward the outlet side of the second cooling section 133 or at a central region of the second cooling section 133.

[0113] According to the present embodiment, the heat transfer portion 190 can be arranged to surround at least a portion of the cooling portion 130. The heat transfer portion 190 can insulate or cool the aerosol inside the aerosol-generating article 100. The specific process in which the heat transfer portion 190 insulates or cools the aerosol will be described below with reference to FIGS. 10 to 12. Figure 5 and Figure 6

[0114] ​The heat transfer portion 190 can surround the outer circumferential surface of the cooling portion 130, and the heat transfer portion 190 can surround only a portion or the entire cooling portion 130 of the cooling portion 130 in the longitudinal direction of the cooling portion 130.

[0115] In detail, as shown in Figure 4 In the present embodiment, the heat transfer portion 190 can surround the entire outer circumferential surface of the first cooling section 131 of the cooling portion 130.

[0116] Alternatively, in the embodiment shown in Figure 7 In the present embodiment, the heat transfer portion 190 can surround only a portion of the first cooling section 131.

[0117] Alternatively, according to the embodiment shown in Figure 8 In this case, the heat transfer portion 190 can be arranged to extend up to just before the position at which the opening 160 is formed, so as not to cover the opening 160 of the second cooling section 133.

[0118] Alternatively, according to another embodiment shown in Figure 9 In other words, the heat transfer portion 190 can be arranged to surround the entire cooling portion 130. In this case, the heat transfer portion 190 can have a plurality of openings at positions corresponding to the opening 160 of the second cooling section 133.

[0119] In the present embodiment, the heat transfer portion 190 can extend from the inlet of the cooling portion 130 that is in contact with the tobacco medium portion 110. As shown in Figure 4 In other words, the heat transfer portion 190 can be arranged to surround the cooling portion 130 from the position at which the tobacco medium portion 110 and the cooling portion 130 are in contact with each other, i.e., from the inlet of the cooling portion 130. Thereby, the heat transfer portion 190 can insulate the downstream side of the tobacco medium portion 110, so that the downstream side of the tobacco medium portion 110 is heated to a temperature equal to that of the remaining section of the tobacco medium portion 110 while the tobacco medium portion 110 is heated by the heater 370. In addition, the heat transfer portion 190 can also cool the aerosol moving inside the cooling portion 130. The detailed process in which the heat transfer portion 190 cools the aerosol moving inside the cooling portion 130 will be described below.

[0120] Hereinafter, the heat transfer portion 190 will be described with reference to Figure 5 and Figure 6A process in which the heat transfer portion 190 according to the present embodiment insulates or cools the aerosol in the aerosol generating article 100 will be described.

[0121] Figure 5 is an illustration showing a process of heating a tobacco medium portion by inserting a heater into an aerosol generating article according to the present embodiment. Figure 6 is an illustration showing a process of heating a tobacco medium portion by inserting a heater into an aerosol generating article according to the prior art.

[0122] The heat transfer portion 190 according to the present embodiment can insulate the aerosol while the tobacco medium portion 110 is heated before the user inhales mainstream smoke, and the heat transfer portion 190 according to the present embodiment can cool the aerosol while the user inhales mainstream smoke.

[0123] A process in which the user inhales mainstream smoke using the aerosol generating article 100 according to the present embodiment can include the following processes: the tobacco medium portion 110 is initially heated by the heater 370 of the aerosol generating device 300 (see Figure 22 ) inserted into the tobacco medium portion 110 to generate an aerosol; and when the tobacco medium portion 110 reaches a predetermined temperature for generating an aerosol, the user inhales mainstream smoke through the mouth.

[0124] Referring to Figure 5 , when the heater 370 initially heats the tobacco medium portion 110, the heat transfer portion 190 can insulate the downstream side portion P of the tobacco medium portion 110 adjacent to the cooling portion 130. Thereby, when the tobacco medium portion 110 is heated, the heat transfer portion 190 can insulate the downstream side portion of the tobacco medium portion such that the entire section of the tobacco medium portion 110 is heated to a uniform temperature.

[0125] The heat transfer portion 190 can be made in the form of a metal foil such that heat generated at the downstream side portion P of the tobacco medium portion 110 by the heater 370 can be prevented from being dissipated to the outside through the body of the cooling portion 130. Unlike the prior art, since the heat transfer portion 190 blocks heat from being dissipated to the outside, the temperature of the downstream side portion P of the tobacco medium portion 110 is prevented from being lowered.

[0126] Figure 6 is an illustration showing a process in which the heater 370 heats the aerosol generating article 100 according to the prior art. When the heater 370 initially heats the tobacco medium portion 110, heat at the downstream side portion P of the tobacco medium portion 110 is dissipated to the outside through the adjacent cooling portion 130 (see Figure 6than the temperature of the remaining section M of the tobacco medium portion 110 (see FIG. 1A). Thus, the temperature of the downstream side P of the tobacco medium portion 110 is lower than the temperature of the remaining section M of the tobacco medium portion 110 (see FIG. 1A). Figure 6

[0127] The heater 370 can have a shape in which the electric resistance heater H is surrounded by the ceramic material C, and there is a possibility that the cooling portion 130 is melted by the high-temperature heater 370. Thus, the insertion length of the heater 370 is limited so that the end of the heater 370 does not approach the cooling portion 130. In other words, the heater 370 is inserted so that the end of the heater 370 does not reach the end of the tobacco medium portion 110. Thus, since the heater 370 is inserted so that the end of the heater 370 does not reach the end of the tobacco medium portion 110, it is possible that the same amount of heat as the remaining section M is not provided to the downstream side P of the tobacco medium portion 110. In addition, since the heat at the downstream side P is dissipated and released to the outside by the adjacent cooling portion 130, the temperature of the downstream side P of the tobacco medium portion 110 can be lower than the temperature of the remaining section M.

[0128] When the temperature of the downstream side P of the tobacco medium portion 110 is low, the aerosol generated in the remaining section M of the tobacco medium portion 110 is liquefied at the low-temperature downstream side of the tobacco medium portion 110, thereby hindering the flow of the aerosol at the downstream side P of the tobacco medium portion 110. In other words, the aerosol generated in the tobacco medium portion 110 cannot effectively flow toward the cooling portion 130.

[0129] Thus, in the present embodiment, when the tobacco medium portion 110 is heated, the heat transfer portion 190 insulates the downstream side of the tobacco medium portion 110. This enables the aerosol generated in the tobacco medium portion 110 to effectively flow toward the cooling portion 130 without stagnating at the downstream side of the tobacco medium portion 110 due to the low temperature.

[0130] Meanwhile, when the tobacco medium portion 110 reaches a predetermined temperature for generating the aerosol, the heat transfer portion 190 can also cool the high-temperature aerosol moving inside the cooling portion 130 during the process in which the user inhales the mainstream smoke through the mouth. When the high-temperature aerosol is cooled while passing through the cooling portion 130, the heat transfer portion 190 surrounding the cooling portion 130 can dissipate heat from the cooling portion 130 to further cool the high-temperature aerosol. Thus, it is possible to prevent the high-temperature aerosol from being directly delivered to the user.

[0131] ​In this case, the heat transfer portion 190 can be in the form of a metal foil. In other words, the heat transfer portion 190 can surround the cooling portion 130 in the form of a thin metal plate. Since the metal heat transfer portion 190 is disposed on the outer circumferential surface of the cooling portion 130 adjacent to the tobacco medium portion 110, the aerosol can be insulated or cooled during inhalation.

[0132] The heat transfer portion 190 can include a metal material. For example, the heat transfer portion 190 can include at least one of aluminum, copper, ferrite, or martensite. Preferably, the heat transfer portion 190 is in the form of a metal foil including aluminum. However, the heat transfer portion 190 is not necessarily limited thereto and can employ various metals having high thermal conductivity.

[0133] In some embodiments, the heat transfer portion 190 can be circumferentially disposed to surround the outer circumferential surface of the cooling portion 130 in the form of a metal plate (see Figure 1 ). Alternatively, as shown in the embodiments of Figures 12 to 14 , the heat transfer portion 190 can be disposed to surround the outer circumferential surface of the cooling portion 130 in the form of a plurality of metal strips. The plurality of metal strips constituting the heat transfer portion 190 can be disposed to be spaced apart from each other.

[0134] Referring to Figure 12 , the heat transfer portion 191 can surround the outer circumferential surface of the first cooling section 131 of the cooling portion 130 in the form of a plurality of metal strips spaced apart from each other. In this case, the heat transfer portion 191 in the form of a plurality of metal strips can be disposed in parallel with the extension direction of the cooling portion 130. In other words, the plurality of metal strips can be disposed in parallel with the cooling portion 130.

[0135] Referring to Figure 13 , the heat transfer portion 193 can be disposed in the form of a plurality of metal strips, and the plurality of metal strips can be disposed to be inclined with respect to the extension direction of the cooling portion 130. In other words, unlike the case shown in Figure 12 , the plurality of metal strips can be disposed not in parallel with the extension direction of the cooling portion 130. In detail, the plurality of metal strips can be disposed in a spiral shape to surround the outer circumferential surface of the cooling portion 130.

[0136] Referring to Figure 14 , the heat transfer portion 195 can be disposed in the form of a plurality of metal strips, the plurality of metal strips are generally or substantially aligned with the extension direction of the cooling portion 130, and the plurality of metal strips can be disposed in a wave shape or a serpentine shape.

[0137] Referring back to Figure 4The aerosol generating article 100 according to this embodiment can be packaged using a packaging component 170. The packaging component 170 can surround the tobacco medium portion 110, the cooling portion 130, and the filter portion 150 arranged in a row. Therefore, when the packaging component 170 surrounds the tobacco medium portion 110, the cooling portion 130, and the filter portion 150, it can maintain the cylindrical shape that is the unique shape of the aerosol generating article 100.

[0138] Package 170 can surround the entire outer circumferential surface of each of the tobacco medium portion 110, cooling portion 130 and filter portion 150.

[0139] Each of the tobacco medium portion 110, cooling portion 130, and filter portion 150 constituting the aerosol generating article 100 according to this embodiment can be individually packaged (not shown) in a separate package. When the tobacco medium portion 110 comprises multiple segments, each of the multiple segments can be packaged in a separate package, or the multiple segments can be packaged in a single package. Therefore, when each of the tobacco medium portion 110, cooling portion 130, and filter portion 150 is individually packaged, the individually packaged tobacco medium portion 110, cooling portion 130, and filter portion 150 can be repackaged as a whole in a package 170.

[0140] The package 170 may have multiple openings (not shown) for allowing external air to be introduced into the aerosol generating article 100 or for allowing internal air to be exhausted from the aerosol generating article 100. The multiple openings may be formed at locations corresponding to the multiple openings 160 of the cooling section 130.

[0141] The package 170 can be made of conventional wrapping paper. For example, the package 170 can be porous or non-porous wrapping paper.

[0142] The package 170 may include a predetermined material. This predetermined material may be silicon, but is not necessarily limited to it. For example, silicon exhibits properties such as heat resistance, oxidation resistance, resistance to various chemicals, water resistance, and electrical insulation. However, any material other than silicon may be used in the package 170 without limitation, as long as the material exhibits the aforementioned properties.

[0143] In addition, the wrapper 170 can include a non-combustible material to prevent the aerosol generating article 100 according to the present embodiment from being combusted. For example, when the heater 370 of the aerosol generating device 300 heats the tobacco medium portion 110, there is a possibility that the aerosol generating article 100 is combusted. In detail, when the temperature rises to a temperature above the ignition point of any one of the materials included in the tobacco medium portion 110, the aerosol generating article can be combusted.

[0144] The wrapper 170 can prevent the aerosol generating device 300 from being contaminated by the substances generated from the aerosol generating article 100. During smoking, a liquid substance can be generated in the aerosol generating article 100. For example, when the aerosol generated from the aerosol generating article 100 is cooled by external air, a liquid substance and moisture can be generated.

[0145] Since the wrapper 170 wraps the tobacco medium portion 110, the cooling portion 130, and the filter portion 150, the liquid substance generated in the aerosol generating article 100 can be prevented from leaking out of the aerosol generating article 100. Accordingly, the inside of the aerosol generating device 300 can be prevented from being contaminated by the liquid substance generated from the aerosol generating article 100.

[0146] The wrapper 170 can define the outermost surface of the aerosol generating article 100, such that the shape and appearance of the aerosol generating article 100 can vary according to the shape of the wrapper 170. For example, characters, patterns, symbols, images can be printed on the wrapper 170. The characters, patterns, symbols, images printed on the wrapper 170 can be varied, such that the aerosol generating article 100 can provide various visual information.

[0147] Hereinafter, an aerosol generating article according to another embodiment of the present disclosure will be described.

[0148] Figure 15 FIG. 3 is a cross-sectional view illustrating an aerosol generating article according to a second embodiment of the present disclosure. Figures 16 to 18 FIG. 4 is a view illustrating another embodiment of a tobacco medium portion of an aerosol generating article. Figure 19 FIG. 5 is a view illustrating another example of a filter portion of the aerosol generating article illustrated in FIG. 3. Figure 15 FIG. 6 is a view illustrating another example of a filter portion of the aerosol generating article illustrated in FIG. 3.

[0149] Referring to FIG. 4, the tobacco medium portion 110 according to the second embodiment includes a tobacco medium 111 and a filter 112. Figure 15 The structure of the aerosol generating article according to the second embodiment is the same as that of the aerosol generating article 100 according to the first embodiment, except for the tobacco medium portion 110 and the cooling portion 130. Accordingly, a repeated description of the same configuration will be omitted.

[0150] Unlike the cooling portion 130 according to the first embodiment, according to the present embodiment, as shown in FIG. 1, the cooling portion 130 can include one segment. In other words, while the cooling portion 130 according to the above-described first embodiment includes two segments, the cooling portion 130 according to the present embodiment includes one segment. Figure 15 As shown in FIG. 1, the cooling portion 130 according to the present embodiment can include one segment. In other words, while the cooling portion 130 according to the above-described first embodiment includes two segments, the cooling portion 130 according to the present embodiment includes one segment.

[0151] In this case, the cooling portion 130 can remain the same as the above-described second cooling segment 133 according to the first embodiment in terms of shape and material.

[0152] The cooling portion 130 can have a tubular shape to allow the aerosol to pass through the cooling portion 130. In detail, the cooling portion 130 can have a through-hole T therein. The through-hole T is a space formed in the center of the cooling portion 130, and the through-hole T can allow the aerosol to move from the tobacco medium portion 110 to the filter portion 150 through the through-hole T.

[0153] The high-temperature aerosol introduced into the inlet of the cooling portion 130 can be cooled while passing through the through-hole T of the cooling portion 130. During the process of cooling the aerosol, heat from the aerosol can pass through the body of the cooling portion 130 and be dissipated to the outside.

[0154] The body of the cooling portion 130 can be manufactured by adding a plasticizer such as triacetin to a cellulose acetate tow. Alternatively, the body of the cooling portion 130 can be made of a laminated paper including a plurality of paper layers. The body of the cooling portion 130 can include other additives such as a flavoring agent, a wetting agent, and / or an organic acid.

[0155] In some embodiments, the heat transfer portion 190 can be disposed to surround the outer circumferential surface of the cooling portion 130. As in the first embodiment, the heat transfer portion 190 can extend from the inlet of the cooling portion 130 that is in contact with the tobacco medium portion 110. In this case, the heat transfer portion 190 can extend to a position before the plurality of openings 160 of the cooling portion 130. However, the heat transfer portion 190 is not necessarily limited thereto, and the heat transfer portion 190 can be disposed to surround a part or all of the cooling portion 130.

[0156] Meanwhile, in the present embodiment, as in the above-described first embodiment, the tobacco medium portion 110 can include one segment filled with a tobacco medium. Here, the tobacco medium portion 110 can be the same as the above-described tobacco medium portion 110 according to the first embodiment in terms of shape and material.

[0157] Figures 16 to 18Other examples of the tobacco medium portion 110 according to an embodiment are illustrated, in which the tobacco medium portion 110 can include two segments.

[0158] Referring to Figure 16 The tobacco medium portion 110 can include a first tobacco segment 111 and a second tobacco segment 113. The first tobacco segment 111 can remain the same as the above-described tobacco medium portion 110 according to the first embodiment in terms of material and shape. For example, the first tobacco segment 111 can include a tobacco medium, and the tobacco medium can be made in the form of a sheet or a rod. In addition, the tobacco medium can be made in the form of a tobacco thread obtained by finely cutting a tobacco sheet. In addition, the tobacco medium can be made in the form including particles of tobacco.

[0159] In addition, when the aerosol generating article 100 is inserted into the aerosol generating device 300, the second tobacco segment 113 can support the aerosol generating article 100 such that the aerosol generating article 100 is fixed to the aerosol generating device 300.

[0160] The second tobacco segment 113 can be a cellulose acetate filter. For example, the second tobacco segment 113 can be manufactured by adding a plasticizer such as glyceryl triacetate to a cellulose acetate tow. In addition, an aerosol generating material can be included in the cellulose acetate tow.

[0161] Nicotine can be removed from the aerosol generating material included in the second tobacco segment 113. For example, the second tobacco segment 113 can include at least one of glycerol, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol. However, the aerosol generating material included in the second tobacco segment 113 is not necessarily limited thereto.

[0162] In addition, the second tobacco segment 113 can include other additives such as a flavoring agent, a wetting agent, and / or an organic acid. However, the material and type of the second tobacco segment 113 are not necessarily limited thereto and can be modified within a range that can be employed by one of ordinary skill in the art.

[0163] The second tobacco segment 113 can have a through-hole for allowing an aerosol from the outside to be introduced therethrough to form mainstream smoke inside the aerosol generating article 100. The through-hole formed in the second tobacco segment 113 can have a circular or Y-shaped cross-section. However, the cross-sectional shape of the through-hole is not necessarily limited thereto and can take various forms.

[0164] Referring to Figure 17The tobacco medium portion 110 can include a first tobacco section 111 and a third tobacco section 115. The first tobacco section 111 can remain the same as the above-described first tobacco section 111 in terms of material and shape. Meanwhile, the third tobacco section 115 is located in front of the first tobacco section 111, and the third tobacco section 115 can include a curled sheet impregnated with an aerosol generating material.

[0165] Referring to Figure 18 The tobacco medium portion 110 can include a fourth tobacco section 117 and a fifth tobacco section 119. The fourth tobacco section 117 and the fifth tobacco section 119 can be in a form in which a liquid nicotine solution or a nicotine salt is impregnated into a curled sheet.

[0166] Figure 19 A modified example of the filter portion 150 according to the present embodiment is illustrated, in which a concave portion 180 can be formed downstream of the filter portion 150. The concave portion 180 has a structure in which the wrapper 170 surrounding the filter portion 150 extends further downstream beyond the filter portion 150. In other words, in the present embodiment, the wrapper 170 extends further outward beyond the filter portion 150, as compared with the above-described aerosol generating article 100 according to other embodiments. According to the shape of the wrapper 170, the filter portion 150 can have a concave stick shape.

[0167] The concave portion 180 can prevent a nicotine stain formed at the end of the filter portion 150 from being easily exposed to the outside. Accordingly, the nicotine stain formed at the filter portion 150 of the aerosol generating article 100 can not be exposed to the outside during or after smoking, thereby resulting in an improved aesthetic appearance.

[0168] Hereinafter, a process in which the heat transfer portion 190 insulates or cools an aerosol in the aerosol generating article 100 according to some embodiments will be described with reference to Figure 20 and Figure 21

[0169] Figure 20 is an illustration showing a process in which a heater of an aerosol generating device heats an aerosol generating article according to the related art. Figure 21 is an illustration showing a process in which a heater of an aerosol generating device heats an aerosol generating article according to the second embodiment of the present disclosure.

[0170] Referring to Figure 20 ​In the related art, one type of heater 390 is arranged to surround the entire tobacco medium portion 110 to uniformly heat the entire tobacco medium portion 110. Since the heater 390 is arranged to extend to the top of the aerosol generating device 300, there is a possibility that the aerosol generating device 300 is heated to a high temperature, thereby causing a user to be burned.

[0171] Referring to Figure 21 , the heat transfer portion 190 is arranged at the inlet side of the cooling portion 130 adjacent to the tobacco medium portion 110, such that the heater 390 of the aerosol generating device 300 can be arranged to have a predetermined gap G with the downstream side of the tobacco medium portion 110. Accordingly, the top of the aerosol generating device 300 is not heated to a high temperature by the heater 390, thereby preventing a user in contact with the top of the aerosol generating device 300 from being burned.

[0172] Hereinafter, an aerosol generating device into which an aerosol generating article according to a first embodiment of the disclosure is inserted will be described.

[0173] Figure 22 is a schematic view illustrating a configuration of an embodiment of an aerosol generating device into which an aerosol generating article is inserted. Figure 23 is a view illustrating another embodiment of an aerosol generating device.

[0174] Referring to Figure 22 and Figure 23 , the aerosol generating device 300 according to the present embodiment can include the heaters 370 and 390, the power supply 330, the controller 310, and the aerosol generator 350. Here, those of ordinary skill in the art related to the present embodiment will understand that other general components in addition to the components illustrated in Figure 22 and Figure 23 may also be included in the aerosol generating device 300.

[0175] Meanwhile, in Figure 23 , the power supply 330, the controller 310, and the aerosol generator 350 are exemplified as being arranged in a row or a column in an adjacent manner. However, if necessary, the arrangement of the power supply 330, the controller 310, and the aerosol generator 350 can be modified. Further, as illustrated in Figure 22 , the aerosol generator 350 can be removed, and the aerosol generating article 100 can be operated only by being heated by the heater 370.

[0176] The aerosol generating article 100 can be inserted into the aerosol generating device 300. The aerosol generating article 100 can be fixed to the aerosol generating device 300 in the inserted state by a fixing means. In the present embodiment, the tobacco medium portion 110 of the aerosol generating article 100 can serve as the fixing means. However, other fixing means can be included in addition to the tobacco medium portion 110.

[0177] The heaters 370 and 390 can heat the aerosol generating article 100. When the heaters 370 and 390 are heated by the power supplied from the power supply 330, the heaters 370 and 390 can transfer heat to the aerosol generating article 100.

[0178] The heaters 370 and 390 can be electric resistance heaters. The heaters 370 and 390 can include electrically conductive tracks. When an electric current flows through the electrically conductive tracks by the power supplied from the power supply 330, the heaters 370 and 390 can heat the aerosol generating article 100.

[0179] As another example, the heaters 370 and 390 can be inductive heaters. The heaters 370 and 390 can include electrically conductive coils to heat the aerosol generating article 100 by an induction heating method, and the aerosol generating article 100 can include a susceptor that the inductive heaters can heat.

[0180] The power supply 330 can supply power used in the aerosol generating device 300. For example, the power supply 330 can supply power used to heat the heaters 370 and 390, and the power supply 330 can supply power used to operate the controller 310. In addition, the power supply 330 can supply power used to operate a display, a sensor, a motor, etc. of the aerosol generating device 300.

[0181] The controller 310 can control the overall operation of the aerosol generating device 300. In detail, the controller 310 can control the operation of other components included in the power supply 330 and the aerosol generator 350. Furthermore, the controller 310 can determine whether the aerosol generating device 300 is in an operable state by checking the state of each component in the aerosol generating device 300.

[0182] The aerosol generator 350 can generate an aerosol by heating a liquid composition. The generated aerosol can pass through the aerosol generating article 100 and be delivered to a user. In other words, the aerosol generated by the aerosol generator 350 can be introduced into the tobacco medium portion 110 of the aerosol generating article 100.

[0183] The aerosol generator 350 can include a liquid reservoir, a liquid transfer device, and a heating element, but is not necessarily limited thereto. For example, the liquid reservoir, the liquid transfer device, and the heating element can be included in the aerosol generating device 300 as independent modules.

[0184] The liquid reservoir can store a liquid composition. For example, the liquid composition can be a liquid including a tobacco-containing substance having volatile tobacco flavor components, or the liquid composition can be a liquid including a non-tobacco substance. The liquid reservoir can be manufactured to be attached to the aerosol generating device 300 or separated from the aerosol generating device 300, or can be manufactured in a manner integrated with the aerosol generating device 300.

[0185] When the aerosol generator 350 according to the embodiment of the disclosure includes a liquid including a non-tobacco substance, the liquid composition stored in the liquid reservoir included in the aerosol generator 350 can not contain nicotine, and the aerosol generated by the aerosol generator 350 can be introduced into the tobacco medium portion 110 without containing nicotine. In this case, the aerosol not containing nicotine can pass through the tobacco medium portion 110 and absorb nicotine, and the aerosol that has passed through the tobacco medium portion 110 can contain nicotine.

[0186] The liquid composition included in the aerosol generator 350 can include water, a solvent, ethanol, a plant extract, a flavor, a flavoring agent, or a vitamin mixture. The flavor can include menthol, peppermint, spearmint oil, or various fruit flavor components, but is not necessarily limited thereto. The flavoring agent can include components capable of providing various flavors or tastes to a user. The vitamin mixture can be a mixture of at least one vitamin among vitamin A, vitamin B, vitamin C, and vitamin E, but is not necessarily limited thereto. In addition, the liquid composition can include an aerosol former such as glycerol and propylene glycol.

[0187] While the disclosure has been illustrated and described with reference to example embodiments of the disclosure, it will be understood by those of ordinary skill in the art that various changes in form and details can be made thereto without departing from the spirit and scope of the disclosure as defined by the following claims. Therefore, the scope of the disclosure is not limited by the detailed description of the disclosure, but is defined by the appended claims, and all differences within the scope will be interpreted as being included in the disclosure.

Claims

1. An aerosol generating article comprising: a tobacco medium portion; a filter portion; a cooling portion disposed between the tobacco medium portion and the filter portion; and a heat transfer portion surrounding at least a portion of an outer surface of the cooling portion, wherein the heat transfer portion is in the form of a metal foil and includes a plurality of metal strips, wherein an edge of the heat transfer portion is positioned to surround a portion of the aerosol generating article corresponding to an inlet of the cooling portion that is in contact with the tobacco medium portion. the cooling portion includes:

2. An aerosol-generating article according to claim 1, wherein, a first cooling segment in contact with the tobacco medium portion; and a second cooling segment arranged between the first cooling segment and the filter portion. the heat transfer portion surrounds at least a portion of the first cooling segment.

3. An aerosol-generating article according to claim 2, wherein, the heat transfer portion surrounds at least a portion of the second cooling segment.

4. An aerosol-generating article according to claim 3, wherein, the first cooling segment includes cellulose acetate tow, and the second cooling segment includes a paper material.

5. An aerosol-generating article according to claim 2, wherein, the cooling portion has a tubular shape.

6. An aerosol-generating article according to claim 1, wherein, the tobacco medium portion includes a plurality of segments.

7. An aerosol-generating article according to claim 1, wherein, at least one segment of the plurality of segments includes a tobacco medium.

8. An aerosol-generating article according to claim 7, wherein, the heat transfer portion includes at least one of aluminum, copper, ferrite, or martensite.

9. An aerosol-generating article according to claim 1, wherein, the plurality of metal strips are spaced apart from each other.

10. An aerosol-generating article according to claim 1, wherein, the plurality of metal strips are arranged parallel to a length direction of the cooling portion.

11. An aerosol-generating article according to claim 10, wherein, the plurality of metal strips are arranged inclined with respect to the length direction of the cooling portion.

12. An aerosol-generating article according to claim 10, wherein, ​

Images