Aerosol-generating device comprising core material

Abstract

An aerosol-generating device may include a core material, wherein the core material includes: a first end; the second end part is opposite to the first end part; an extension portion extending between the first end portion and the second end portion; and a heating body provided inside the extension portion and configured to generate heat by surface plasmon resonance.

Description

Technical Field

[0001] The present disclosure relates to an aerosol generating device, for example, to an aerosol generating device including a wick. Background Art

[0002] Typically, an aerosol generating device can generate an aerosol by heating a target (e.g., an aerosol generating substance). For example, heat can be generated by providing electrical energy to a resistive element. In another example, heat can be generated by electromagnetic coupling between a coil and a base. The above description is information obtained during the process of conceiving the present disclosure, or information already possessed at the time, and is not necessarily a technology known before filing this application. Summary of the invention

[0003] Technical issues to be solved One aspect of the present disclosure provides an aerosol generating device that can improve atomization efficiency.

[0004] Technical means of solving problems According to one aspect, a core material for an aerosol generating device is provided, wherein the core material may include: a first end; a second end opposite to the first end; an extension portion extending between the first end and the second end; and a heat generating body disposed inside the extension portion and configured to generate heat by surface plasmon resonance.

[0005] The extension portion includes a plurality of fiber bundles, and the heat generating element may be embedded in the plurality of fiber bundles.

[0006] The extension portion includes: a hollow portion; and a main body portion forming the hollow portion, wherein the heat generating body may be disposed in the hollow portion.

[0007] The core material may further include a plurality of fiber bundles disposed in the hollow portion and surrounding the heat generating body.

[0008] The core material may further include an opening disposed at the extension portion.

[0009] The core material may further include a light concentrator disposed at the opening.

[0010] The core material may further include a light diffuser disposed at the opening.

[0011] The heat generating body may include: a substrate; and a plurality of metal particles disposed on the substrate.

[0012] According to another aspect, there may be provided an aerosol generating device further comprising a light source configured to emit light toward the core material as described above and the core material.

[0013] The aerosol generating device further comprises a liquid reservoir configured to contain a liquid composition, wherein at least one of the first end portion or the second end portion can be connected to the liquid reservoir.

[0014] The core material may further include a reflector disposed on the extension portion and configured to reflect light toward the heat generating element.

[0015] Effects of the Invention According to an embodiment, the size of components (e.g., a battery) in the aerosol generating device can be reduced. According to an embodiment, heating-related elements (e.g., a Pogo™ needle) can be removed from the aerosol generating device. The effects of the aerosol generating device according to an embodiment are not limited to the above-mentioned contents, and those skilled in the art can clearly understand other effects not mentioned from the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and other aspects, features and advantages of the specific embodiments of the present disclosure will be more apparent through the following detailed description with reference to the accompanying drawings.

[0017] Figures 1 to 3 is a diagram illustrating an example of inserting an aerosol-generating article into an aerosol-generating device according to an embodiment.

[0018] Figure 4 and Figure 5 is a drawing showing an example of an aerosol-generating article according to an embodiment.

[0019] Figure 6 is a block diagram of an aerosol generating device according to an embodiment.

[0020] Figure 7 FIG. 1 is a diagram showing an aerosol generating device according to an embodiment.

[0021] Figure 8 2 is a diagram showing a core material according to an embodiment.

[0022] Fig. 9 is a drawing showing a core material according to another embodiment.

[0023] Fig.10 is a drawing showing a core material according to another embodiment.

[0024] Fig.11 is a drawing showing a core material according to another embodiment.

[0025] Fig.12 is a drawing showing a core material according to another embodiment.

[0026] Fig.13is a three-dimensional diagram of a heating element according to an embodiment.

[0027] Fig.14 is a plan view of a heating element according to an embodiment.

[0028] Fig.15 According to an embodiment Fig.14 A cross-sectional view of the heating element along line 15-15. DETAILED DESCRIPTION

[0029] When selecting the terms used in the embodiments, the functions of the embodiments are taken into consideration, and widely used general terms are selected as much as possible, but there may be differences based on the intentions of practitioners in this field, precedents, new technologies, etc. In certain cases, the applicant may also arbitrarily select terms, but in such cases, the meaning of the terms will be explained in detail in the specification. Therefore, the terms used in this specification are not simple terms and should be defined according to the meaning of the terms and the overall content of the present invention.

[0030] When it is stated throughout the specification that a certain part "includes" a component, it means that other components may also be included unless otherwise mentioned, and does not mean that other components are excluded. In addition, the terms "-part", "-module" and the like described in the specification refer to a unit that processes at least one function or operation, which may be implemented by hardware or software, or a combination of hardware and software.

[0031] The embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings to help those skilled in the art understand and implement the present disclosure. The present disclosure is not limited to the following embodiments and can be implemented in the manner of implementing the aerosol generating device of the above embodiments or in other forms.

[0032] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

[0033] Figures 1 to 3 is a diagram illustrating an example of inserting an aerosol-generating article into an aerosol-generating device according to an embodiment.

[0034] Reference Figure 1 The aerosol generating device 1 includes a battery 11, a control unit 12 and a heater 13. Figure 2 as well as Figure 3 The aerosol generating device 1 further includes a vaporizer 14 . Furthermore, an aerosol generating article 2 (eg, a cigarette) may be inserted into the inner space of the aerosol generating device 1 .

[0035] Figures 1 to 3 The aerosol generating device 1 shows the components related to this embodiment. It should be understood by those skilled in the art that, in addition to Figures 1 to 3In addition to the components shown, the aerosol generating device 1 may further include other general components.

[0036] and, Figure 2 and Figure 3 The aerosol generating device 1 is shown to include a heater 13 , but the heater 13 may be omitted as required.

[0037] Figure 1 The battery 11 , the control unit 12 , and the heater 13 are shown arranged in a row. Figure 2 The battery 11, the control unit 12, the vaporizer 14 and the heater 13 are shown arranged in a row. Figure 3 The vaporizer 14 and the heater 13 are shown to be arranged in parallel. However, the internal structure of the aerosol generating device 1 is not limited to Figures 1 to 3 In other words, the configurations of the battery 11 , the control unit 12 , the heater 13 , and the vaporizer 14 may be changed according to the design of the aerosol generating device 1 .

[0038] When the aerosol generating article 2 is inserted into the aerosol generating device 1, the aerosol generating device 1 can activate the heater 13 and / or the vaporizer 14 to generate aerosol. The aerosol generated by the heater 13 and / or the vaporizer 14 is transferred to the user through the aerosol generating article 2.

[0039] If necessary, when the aerosol-generating product 2 is not inserted into the aerosol-generating device 1 , the aerosol-generating device 1 may also heat the heater 13 .

[0040] The battery 11 provides the power required for the operation of the aerosol generating device 1. For example, the battery 11 can provide power to heat the heater 13 or the vaporizer 14, and can provide power required for the operation of the control unit 12. In addition, the battery 11 can provide power required for the operation of the display, sensor, motor, etc. provided in the aerosol generating device 1.

[0041] The control unit 12 controls the operation of the aerosol generating device 1 as a whole. Specifically, the control unit 12 can control not only the battery 11, the heater 13, and the vaporizer 14, but also the operations of other structures in the aerosol generating device 1. In addition, the control unit 12 can determine whether the aerosol generating device 1 is in an operable state by confirming the state of each structure of the aerosol generating device 1.

[0042] The control unit 12 includes at least one processor. The processor may be implemented as a plurality of logic gate arrays, or may be implemented as a combination of a general-purpose microprocessor and a memory, wherein the memory stores a program executable by the microprocessor. It is easy for a person skilled in the art to which the present invention belongs to understand that the control unit may be other forms of hardware.

[0043] The heater 13 may be powered by the battery 11 for heating. For example, when the aerosol-generating article is inserted into the aerosol-generating device 1, the heater 13 may be located outside the aerosol-generating article. Thus, the heated heater 13 may increase the temperature of the aerosol-generating substance in the aerosol-generating article.

[0044] The heater 13 may be a resistive heater. For example, the heater 13 includes a conductive track, and the heater 13 may be heated as current flows on the conductive track. However, the heater 13 is not limited to the above example, as long as it can be heated to a desired temperature. Here, the desired temperature may be pre-set in the aerosol generating device 1, or may be set by a user.

[0045] In one aspect, for another example, the heater 13 may be an induction heater. Specifically, the heater 13 may include a conductive coil that heats the aerosol-generating article by induction heating, and the aerosol-generating article may include a susceptor that can be heated by the induction heater.

[0046] For example, the heater 13 may include a tubular heating element, a plate-shaped heating element, a needle-shaped heating element or a rod-shaped heating element, and the inside or outside of the aerosol-generating article 2 may be heated according to the shape of the heating element.

[0047] In addition, a plurality of heaters 13 may be arranged in the aerosol generating device 1. In this case, the plurality of heaters 13 may be inserted into the interior of the aerosol generating product 2, or may be arranged outside the aerosol generating product 2. Alternatively, some of the heaters 13 may be inserted into the interior of the aerosol generating product 2, and the rest may be arranged outside the aerosol generating product 2. In addition, the shape of the heater 13 is not limited to Figures 1 to 3 The shape shown can also be made into various shapes.

[0048] The vaporizer 14 can heat the liquid composition to generate an aerosol, and the generated aerosol can be delivered to the user through the aerosol generating article 2. In other words, the aerosol generated by the vaporizer 14 can move through the airflow path of the aerosol generating device 1, and the airflow path enables the aerosol generated by the vaporizer 14 to be delivered to the user through the aerosol generating article.

[0049] For example, the vaporizer 14 may include a liquid storage portion (eg, a reservoir), a liquid delivery means, and a heating element, but is not limited thereto. For example, the liquid storage portion, the liquid delivery means, and the heating element may be included in the aerosol generating device 1 as independent modules.

[0050] The liquid storage portion can store a liquid composition. For example, the liquid composition can be a liquid comprising a tobacco-containing substance containing a volatile tobacco aromatic component, or a liquid comprising a non-tobacco substance. The liquid storage portion can be disassembled from the vaporizer 14, or can be formed as one with the vaporizer 14.

[0051] For example, the liquid composition may include water, solvents, ethanol, plant extracts, spices, flavoring agents, or vitamin mixtures. Spices may include menthol, mint, spearmint oil, various fruit flavor ingredients, etc., but are not limited thereto. Flavoring agents may include ingredients that provide different fragrances or tastes to users. Vitamin mixtures may be mixed with at least one of vitamin A, vitamin B, vitamin C, and vitamin E, but are not limited thereto. In addition, the liquid composition may include aerosol forming agents such as glycerol and propylene glycol.

[0052] The liquid delivery means can deliver the liquid composition of the liquid storage portion to the heating element. For example, non-limiting examples of the liquid delivery means include cotton fiber wicks, ceramic fiber wicks, glass fiber wicks, porous ceramic wicks, and the like.

[0053] The heating element heats the liquid composition conveyed by the liquid conveying means. For example, the heating element can be a metal heating wire, a metal heating plate, a ceramic heater, etc., but is not limited thereto. In addition, the heating element can be composed of a conductive wire such as a nickel-chromium alloy wire and wound around the liquid conveying means. The heating element can be heated by supplying an electric current, thereby transferring heat to the liquid composition in contact with the heating element to heat the liquid composition. Aerosol can eventually be generated.

[0054] For example, the vaporizer 14 may also be referred to as a cartomizer (cartomizer, atomizer), but is not limited thereto.

[0055] In addition to the battery 11, the control unit 12, the heater 13, and the vaporizer 14, the aerosol generating device 1 may also include other general structures. For example, the aerosol generating device 1 may also include a display that outputs visual information and / or a motor that outputs tactile information. In addition, the aerosol generating device 1 may include at least one sensor (a suction sensor, a temperature sensor, an insertion detection sensor for an aerosol generating product, etc.). Furthermore, the aerosol generating device 1 may also be made into a structure that can realize the inflow of external air and the outflow of internal gas when the aerosol generating product 2 is inserted.

[0056] although Figures 1 to 3 Although not shown in the figure, the aerosol generating device 1 can form a system together with a separate stand. For example, the stand can be used to charge the battery 11 of the aerosol generating device 1. Alternatively, the heater 13 can be heated in a state where the stand and the aerosol generating device 1 are combined.

[0057] The aerosol-generating article 2 may be similar to a conventional combustion-type cigarette. For example, the aerosol-generating article 2 may be divided into a first portion including an aerosol-generating substance and a second portion including a filter tip, etc. Furthermore, the second portion of the aerosol-generating article 2 may also include an aerosol-generating substance. For example, an aerosol-generating substance in the form of particles or capsules may also be inserted into the second portion.

[0058] Alternatively, the first part may be inserted as a whole into the aerosol generating device 1, while the second part may be exposed to the outside. Alternatively, only a portion of the first part may be inserted into the aerosol generating device 1, or the entire first part and a portion of the second part may be inserted into the aerosol generating device 1. The user may inhale the aerosol while biting the second part with the mouth. At this time, as the external air flows through the first part to generate the aerosol, the generated aerosol flows through the second part and is delivered to the user's mouth.

[0059] For example, external air may flow in through at least one air channel formed in the aerosol generating device 1. For example, the user may adjust the opening and closing of the air channel formed in the aerosol generating device 1 and / or the size of the air channel. Thus, the user may adjust the atomization amount, the smoking feeling, etc. For another example, external air may flow into the interior of the aerosol generating product 2 through at least one hole formed on the surface of the aerosol generating product 2.

[0060] Next, we will refer to Figure 4 and Figure 5 An example of an aerosol-generating article 2 is described.

[0061] Figure 4 and Figure 5 are drawings illustrating examples of aerosol-generating articles.

[0062] Reference Figure 4 The aerosol generating product 2 includes a tobacco rod 21 and a filter rod 22. Figures 1 to 3 The depicted first portion 21 comprises a tobacco rod 21 and the second portion 22 comprises a filter rod 22 .

[0063] Figure 4 The filter stick 22 shown has only one section, but is not limited thereto. In other words, the filter stick 22 can also be configured as a plurality of sections. For example, the filter stick 22 can include a section for cooling the aerosol and a section for filtering the predetermined components contained in the aerosol. In addition, as required, the filter stick 22 can also include at least one section that performs other functions.

[0064] The diameter of the aerosol generating article 2 may be within the range of 5 mm to 9 mm, and the length may be about 48 mm, but is not limited thereto. For example, the length of the tobacco rod 21 may be about 12 mm, the length of the first section of the filter rod 22 may be about 10 mm, the length of the second section of the filter rod 22 may be about 14 mm, and the length of the third section of the filter rod 22 may be about 12 mm, but is not limited thereto.

[0065] The aerosol generating product 2 may be packaged by at least one packaging material 24. The packaging material 24 may have at least one hole for the inflow of external air or the outflow of internal gas. For example, the aerosol generating product 2 may be packaged by one packaging material 24. For another example, the aerosol generating product 2 may be packaged by stacking two or more packaging materials 24. For example, the tobacco rod 21 is packaged by a first packaging material 241, and the filter rod 22 is packaged by packaging materials 242, 243, and 244. Then, the entire aerosol generating product 2 may be packaged again by a single packaging material 245. If the filter rod 22 is composed of multiple segments, each segment may be packaged by packaging materials 242, 243, and 244.

[0066] The first packaging material 241 and the second packaging material 242 can be made of general filter packaging paper. For example, the first packaging material 241 and the second packaging material 242 can be porous roll paper or non-porous roll paper. In addition, the first packaging material 241 and the second packaging material 242 can be made of oil-resistant paper and / or aluminum foil composite paper packaging material.

[0067] The third packaging material 243 may be made of hard paper. For example, the basis weight range of the third packaging material 243 may include 88 g / m 2 Up to 96g / m 2 Within, preferably included in 90g / m 2 Up to 94g / m 2 Also, the thickness of the third packaging material 243 may be in the range of 120 μm to 130 μm, and preferably may be 125 μm.

[0068] The fourth packaging material 244 can be made of oil-resistant hard paper. For example, the basis weight range of the fourth packaging material 244 can include 88g / m 2 Up to 96g / m 2 Within, preferably included in 90g / m 2 Up to 94g / m 2 Furthermore, the thickness of the fourth packaging material 244 may be in a range of 120 μm to 130 μm, and preferably may be 125 μm.

[0069] The fifth packaging material 245 may be made of sterilization paper (MFW). Here, sterilization paper (MFW) is a specially manufactured paper that is superior to ordinary paper in terms of tensile strength, water resistance, smoothness, etc. For example, the basis weight range of the fifth packaging material 245 may include 57 g / m 2 Up to 63g / m 2 Within, preferably 60g / m 2 Also, the thickness of the fifth packaging material 245 may be in a range of 64 μm to 70 μm, and preferably may be 67 μm.

[0070] A predetermined material may be added to the fifth packaging material 245. Here, a non-limiting example of the predetermined material is silicon. For example, silicon has properties such as heat resistance that is less affected by temperature, oxidation resistance that is not easily oxidized, tolerance to various chemicals, water resistance, or electrical insulation. However, silicon may not be used, and any material having the above properties may be added (or coated) to the fifth packaging material 245 without restriction.

[0071] The fifth packaging material 245 can prevent the aerosol-generating product 2 from burning. For example, the aerosol-generating product 2 may burn when the tobacco rod 210 is heated by the heater 13. Specifically, when the temperature exceeds the ignition point of any one of the materials included in the tobacco rod 310, the aerosol-generating product 2 may burn. Even in this case, since the fifth packaging material 245 includes a non-combustible material, the aerosol-generating product 2 can be prevented from burning.

[0072] In addition, the fifth packaging material 245 can prevent the support 1 from being contaminated by substances generated in the aerosol-generating product 2. When the user inhales, liquid substances may be generated in the aerosol-generating product 2. For example, as the aerosol generated by the aerosol-generating product 2 is cooled by the external air, liquid substances (e.g., moisture, etc.) may be generated. By wrapping the aerosol-generating product 2 with the fifth packaging material 245, the liquid substances generated in the aerosol-generating product 2 can be prevented from leaking to the outside of the aerosol-generating product 2.

[0073] The tobacco rod 21 includes an aerosol generating substance. For example, the aerosol generating substance may 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. In addition, the tobacco rod 21 may also include other additives such as flavoring agents, wetting agents, and / or organic acids. In addition, flavoring agents such as menthol or moisturizers may be sprayed on the tobacco rod 21 to be added to the tobacco rod 21.

[0074] The tobacco rod 21 can be made into various forms. For example, the tobacco rod 21 can be made of a sheet or a strand. Alternatively, the tobacco rod 21 can also be made of shredded tobacco sheets. The tobacco rod 21 can be wrapped with a heat-conductive material. For example, a non-limiting example of a heat-conductive material is a metal foil such as aluminum foil. For example, the heat-conductive material wrapping the tobacco rod 21 can evenly disperse the heat transferred to the tobacco rod 21, thereby increasing the thermal conductivity applied to the tobacco rod and improving the taste of the cigarette. In addition, the heat-conductive material wrapping the tobacco rod 21 can be used as a base heated by an induction heater. At this time, although not shown in the figure, the tobacco rod 21 can also include an additional base in addition to the heat-conductive material wrapping the outside.

[0075] The filter rod 22 can be a cellulose acetate filter. On the one hand, the shape of the filter rod 22 is not limited. For example, the filter rod 22 can be a cylindrical rod, or a tubular rod with a hollow interior. Alternatively, the filter rod 22 can also be a groove-shaped rod. If the filter rod 22 is formed into multiple segments, at least one of the multiple segments can be other shapes.

[0076] The first section of the filter rod 22 may be a cellulose acetate filter. For example, the first section may be a tubular structure with a hollow interior. The first section can prevent the internal material of the tobacco rod 210 from being pushed to the rear when the heater 13 is inserted, and can also achieve the effect of cooling the aerosol. The hollow diameter in the first section may be in the range of 2 mm to 4.5 mm, but is not limited thereto.

[0077] The length of the first section may range from 4 mm to 30 mm, but is not limited thereto. Preferably, the length of the first section may be 10 mm, but is not limited thereto.

[0078] The hardness of the first segment can be adjusted by adjusting the content of the plasticizer during the manufacturing process of the first segment. Also, the interior (eg, hollow) of the first segment can be inserted with a film or tube structure of the same or different material.

[0079] The second section of the filter rod 22 cools the aerosol generated by the heater 13 heating the tobacco rod 21. Thus, the user can inhale the aerosol cooled to an appropriate temperature.

[0080] The length or diameter of the second segment may be determined according to the shape of the aerosol-generating article 2. For example, the length of the second segment may range from 7 mm to 20 mm. Preferably, the length of the second segment may be about 14 mm, but is not limited thereto.

[0081] The second section can be made by weaving polymer fibers. At this time, the flavoring agent can be applied to the fibers made of polymer. Alternatively, the second section can be made by weaving together separate fibers coated with the flavoring agent and fibers made of polymer. Alternatively, the second section can be made of a curled polymer sheet.

[0082] For example, the polymer may be made of a material selected from the group consisting of polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polyethylene terephthalate (PET), polylactic acid (PLA), cellulose acetate (CA), and aluminum foil.

[0083] Since the second section is made of woven polymer fibers or curled polymer sheets, the second section may include one or more longitudinally extending channels. Here, a channel refers to a channel for gas (eg, air or aerosol) to flow.

[0084] For example, the second segment made by rolling the polymer sheet can be made of a material having a thickness between about 5 μm and about 300 μm, such as between about 10 μm and about 250 μm. Also, the total surface area of ​​the second segment can be about 300 mm 2 / mm to about 1000mm 2 / mm. In addition, the aerosol cooling element can be composed of a specific surface area of ​​about 10mm 2 / mg to about 100mm 2 / mg of material.

[0085] In addition, the second section may include a thread containing a volatile aroma component. Here, the volatile aroma component may be menthol, but is not limited thereto. For example, the thread may be filled with enough menthol to provide more than 1.5 mg of menthol to the second section.

[0086] The third section of the filter rod 22 may be a cellulose acetate filter. The length of the third section may be appropriately selected within the range of 4 mm to 20 mm. For example, the length of the third section may be approximately 12 mm, but is not limited thereto.

[0087] When preparing the third section, the flavoring agent can be sprayed on the third section to generate the flavor. Alternatively, a separate fiber coated with the flavoring agent can be inserted into the interior of the third section. The aerosol generated in the tobacco rod 21 is cooled by passing through the second section of the filter rod 22, and the cooled aerosol is delivered to the user through the third section. Therefore, when the flavoring agent is added to the third section, the persistence of the flavor delivered to the user can be improved.

[0088] In addition, the filter rod 22 may include at least one capsule 23. Here, the capsule 23 may play a role in generating fragrance or generating aerosol. For example, the capsule 23 may be a structure in which a liquid including fragrance is wrapped with a film. The capsule 23 may be spherical or cylindrical, but is not limited thereto.

[0089] Reference Figure 5 The aerosol generating article 3 may include a front end plug 33, a tobacco rod 31, and a filter rod 32. The front end plug 33 is located on the opposite side of the filter rod 32 relative to the tobacco rod 31. The front end plug 33 can prevent the tobacco rod 31 from escaping to the outside, and can also prevent the liquid aerosol in the tobacco rod 31 from flowing into the aerosol generating device (for example, Figures 1 to 3 ).

[0090] The filter rod 32 may further include a first section 321 and a second section 322. Here, the first section 321 may correspond to Figure 4 The first section of the filter rod 22, the second section 322 may correspond to Figure 4 The third section of the filter rod 22.

[0091] The diameter and overall length of the aerosol-generating article 3 may correspond to Figure 4 The diameter and overall length of the aerosol generating article 2. As a non-limiting example, the length of the front end plug 33 can be about 7 mm, the length of the tobacco rod 31 can be about 15 mm, the length of the first section 321 can be about 12 mm, and the length of the second section 322 can be about 14 mm.

[0092] The aerosol generating product 3 may be packaged with at least one packaging material 35. The packaging material 35 may be formed with at least one hole for external air to flow in or internal gas to discharge. For example, the front end plug 33 is packaged with a first packaging material 351, the tobacco rod 31 is packaged with a second packaging material 352, the first section 321 is packaged with a third packaging material 353, and the second section 322 is packaged with a fourth packaging material 354. Then, the entire aerosol generating product 3 may be packaged again with a fifth packaging material 355.

[0093] In addition, at least one through hole 36 may be formed on the fifth packaging material 355. For example, the through hole 36 may be formed in the area of ​​the tobacco rod 31, but is not limited thereto. The through hole 36 may be used to pass through the tobacco rod 31. Figure 2 and Figure 3 The heater 13 shown has the effect of transferring heat generated to the interior of the tobacco rod 31 .

[0094] In addition, the second section 322 may include at least one capsule 34. Here, the capsule 34 may play a role in generating fragrance or generating aerosol. For example, the capsule 34 may be a structure in which a liquid including fragrance is wrapped with a film. The capsule 34 may be spherical or cylindrical, but is not limited thereto.

[0095] The first packaging material 351 can be made of a general filter paper combined with a metal foil such as aluminum foil. For example, the overall thickness of the first packaging material 351 can be in the range of 45 μm to 55 μm, preferably 50.3 μm. In addition, the thickness of the metal foil of the first packaging material 351 can be in the range of 6 μm to 7 μm, preferably 6.3 μm. In addition, the basis weight of the first packaging material 351 can be in the range of 50 g / m 2 Up to 55g / m 2 Within, preferably 53g / m 2 .

[0096] The second packaging material 352 and the third packaging material 353 can be made of general filter paper. For example, the second packaging material 352 and the third packaging material 353 can be porous roll paper or non-porous roll paper.

[0097] For example, the porosity of the second packaging material 352 may be 35000 CU, but is not limited thereto. Also, the thickness of the second packaging material 352 may be in the range of 70 μm to 80 μm, preferably 78 μm. Also, the basis weight of the second packaging material 352 may be in the range of 20 g / m 2 Up to 25g / m 2 The preferred thickness is 23.5 g / m 2 .

[0098] For example, the porosity of the third packaging material 353 may be 24000 CU, but is not limited thereto. Also, the thickness of the third packaging material 353 may be in the range of 60 μm to 70 μm, preferably 68 μm. Also, the basis weight of the third packaging material 353 may be in the range of 20 g / m 2 Up to 25g / m 2 Within, preferably 21g / m 2 .

[0099] The fourth packaging material 354 may be made of PLA composite paper. Here, PLA composite paper refers to a three-layer paper consisting of a paper layer, a PLA layer, and a paper layer. For example, the thickness of the fourth packaging material 354 may range from 100 μm to 120 μm, preferably 110 μm. Also, the basis weight of the fourth packaging material 354 may range from 80 g / m 2 Up to 100g / m 2 , preferably 88g / m2 .

[0100] The fifth packaging material 355 may be sterilization paper (MFW). Here, sterilization paper (MFW) is a specially manufactured paper that is superior to ordinary paper in terms of tensile strength, water resistance, smoothness, etc. For example, the basis weight range of the fifth packaging material 355 may include 57 g / m 2 Up to 63g / m 2 Within, preferably 60g / m 2 Also, the thickness of the fifth packaging material 355 may be in the range of 64 μm to 70 μm, and preferably may be 67 μm.

[0101] A predetermined material may be added to the fifth packaging material 355. Here, a non-limiting example of the predetermined material is silicon. For example, silicon has properties such as heat resistance that is less affected by temperature, oxidation resistance that is not easily oxidized, tolerance to various chemicals, water resistance, or electrical insulation. However, silicon may not be used, and any material having the above properties may be added (or coated) to the fifth packaging material 355 without restriction.

[0102] The front end plug 33 may be made of cellulose acetate. For example, the front end plug 33 may be made by adding a plasticizer (e.g., triacetin) to a cellulose acetate tow. The mono denier of the filaments constituting the cellulose acetate tow may be in the range of 1.0 to 10.0, preferably in the range of 4.0 to 6.0. More preferably, the mono denier of the filaments of the front end plug 33 may be 5.0. And, the cross-section of the filaments constituting the front end plug 33 may be Y-shaped. The total denier of the front end plug 33 may be in the range of 20,000 to 30,000, preferably in the range of 25,000 to 30,000. More preferably, the total denier of the front end plug 33 may be 28,000.

[0103] In addition, as required, the front end plug 33 may include at least one channel, and the cross-sectional shapes of the channels may be different.

[0104] The tobacco rod 31 may correspond to the reference Figure 4 Therefore, the detailed description of the tobacco rod 31 will be omitted below.

[0105] The first section 321 may be made of cellulose acetate. For example, the first section may be a tubular structure with a hollow interior. The first section 321 may be made by adding a plasticizer (e.g., triacetin) to the cellulose acetate tow. For example, the single-filament denier and total denier of the first section 321 may be the same as the single-filament denier and total denier of the front end plug 33.

[0106] The second section 322 may be made of cellulose acetate. The monodenier of the filaments constituting the second section 322 may be included in the range of 1.0 to 10.0, preferably included in the range of 8.0 to 10.0. More preferably, the monodenier of the filaments of the second section 322 may be 9.0. In addition, the cross-section of the filaments of the second section 322 may be Y-shaped. The total denier of the second section 322 may be in the range of 20,000 to 30,000, preferably 25,000.

[0107] Figure 6 is a block diagram of an aerosol generating device according to an embodiment.

[0108] The aerosol generating device 400 includes a control unit 410, a sensor unit 420, an output unit 430, a battery 440, a heater 450, a user input unit 460, a memory 470, and a communication unit 480. However, the internal structure of the aerosol generating device 400 is not limited to Figure 6 It is easy for a person skilled in the art to understand that the aerosol generating device 400 can be omitted or modified according to different designs. Figure 6 Some of the components shown may be further added.

[0109] The sensing unit 420 can detect the state of the aerosol generating device 400 or the surrounding state of the aerosol generating device 400, and transmit the detected information to the control unit 410. The control unit 410 can control the aerosol generating device 400 to perform other functions based on the detected information, such as controlling the operation of the heater 450, restricting smoking, determining whether an aerosol generating product (e.g., a cigarette, a cartridge, etc.) is inserted, displaying a notification, etc.

[0110] The sensing part 420 may include at least one of a temperature sensor 422 , an insertion detection sensor 424 , and a suction sensor 426 , but is not limited thereto.

[0111] The temperature sensor 422 can detect the heating temperature of the heater 450 (or the aerosol generating substance). The aerosol generating device 400 may include a separate temperature sensor to detect the temperature of the heater 450, or the heater 450 itself may be used as a temperature sensor. Alternatively, the temperature sensor 422 may be disposed around the battery 440 to monitor the temperature of the battery 440.

[0112] The insertion detection sensor 424 can detect the insertion and / or removal of the aerosol generating article. For example, the insertion detection sensor 424 can include at least one of a film sensor, a pressure sensor, a light sensor, a resistance sensor, a capacitance sensor, an inductance sensor, and an infrared sensor, and can detect signal changes when the aerosol generating article is inserted and / or removed.

[0113] The puff sensor 426 may detect the user's puff based on various physical changes in the airflow path or airflow channel. For example, the puff sensor 426 may detect the user's puff based on any one of temperature change, flow change, voltage change, and pressure change.

[0114] In addition to the above sensors (422 to 426), the sensing unit 420 may further include at least one of a temperature / humidity sensor, an air pressure sensor, a magnetic sensor, an acceleration sensor, a gyroscope sensor, a position sensor (e.g., GPS), a proximity sensor, and an RGB sensor (illuminance sensor). Since a person skilled in the art can intuitively infer the function of each sensor from the name, a detailed description is omitted.

[0115] The output unit 430 may output state information about the aerosol generating device 400 to the user. The output unit 430 may include at least one of a display unit 432, a tactile unit 434, and a sound output unit 436, but is not limited thereto. When the display unit 432 and the touch pad are stacked to form a touch screen, the display unit 432 may be used not only as an output device but also as an input device.

[0116] The display unit 432 can visually provide information about the aerosol generating device 400 to the user. For example, the information about the aerosol generating device 400 may include various information such as the charging / discharging state of the battery 440 of the aerosol generating device 400, the preheating state of the heater 450, the insertion / removal state of the aerosol generating article, or the use restriction state of the aerosol generating device 400 (for example, abnormality is detected), and the display unit 432 can output the information to the outside. The display unit 432 may be a liquid crystal display panel (LCD), an organic light emitting display panel (OLED), etc. In addition, the display unit 432 may also be an LED light emitting element.

[0117] The haptic portion 434 may convert the electrical signal into a mechanical stimulation or an electrical stimulation to provide the user with tactile information about the aerosol generating device 400. For example, the haptic portion 434 may include a motor, a piezoelectric element, or an electrical stimulation device.

[0118] The sound output unit 436 may provide the user with information about the aerosol generating device 400 through sound. For example, the sound output unit 436 may convert an electrical signal into a sound signal and output it to the outside.

[0119] The battery 440 can provide the power required for the operation of the aerosol generating device 400. The battery 440 can supply power to heat the heater 450. In addition, the battery 440 can provide the power required for the operation of other components in the aerosol generating device 400 (for example, the sensing unit 420, the output unit 430, the user input unit 460, the memory 470, and the communication unit 480). The battery 440 can be a rechargeable battery or a disposable battery. For example, the battery 440 can be a lithium polymer (LiPoly) battery, but is not limited thereto.

[0120] The heater 450 may receive power from the battery 440 to heat the aerosol generating substance. Figure 6 Although not shown in the figure, the aerosol generating device 400 may further include a power conversion circuit (e.g., a DC / DC converter) that converts the power of the battery 440 and supplies it to the heater 450. In addition, when the aerosol generating device 400 generates aerosol by induction heating, the aerosol generating device 400 may further include a DC / AC converter to convert the direct current of the battery 440 into alternating current.

[0121] The control unit 410, the sensing unit 420, the output unit 430, the user input unit 460, the memory 470, and the communication unit 480 may receive power from the battery 440 to implement their functions. Figure 6 Not shown, a power conversion circuit, such as a low dropout (LDO) circuit or a voltage stabilization circuit, which converts power from the battery 440 and supplies the power to various components may also be included.

[0122] In one embodiment, the heater 450 may be made of a resistive material suitable for heating. For example, the resistive material may be a metal or metal alloy including titanium, zirconium, tantalum, platinum, nickel, cobalt, chromium, hafnium, niobium, molybdenum, tungsten, tin, gallium, manganese, iron, copper, stainless steel, nickel-chromium, etc., but is not limited thereto. In addition, the heater 150 may be implemented as a metal heating wire, a metal heating plate provided with a conductive track, a ceramic heating element, etc., but is not limited thereto.

[0123] In one embodiment, the heater 450 may be an induction heating heater. For example, the heater 450 may include a base that generates heat through a magnetic field applied by a coil, thereby heating the aerosol generating substance.

[0124] In an embodiment, the heater 450 may include a plurality of heaters. For example, the heater 450 may include a first heater for heating the aerosol-generating article and a second heater for heating the liquid.

[0125] The user input unit 460 may receive information input by a user or output information to the user. For example, the user input unit 460 may include a key pad, a dome switch, a touch pad (contact capacitance type, pressure resistance film type, infrared sensing type, surface ultrasonic conduction type, overall tension measurement type, piezoelectric effect type, etc.), a roller, a roller switch, etc., but is not limited thereto. Figure 6 Not shown, the aerosol generating device 400 may further include a connection interface such as a universal serial bus (USB) interface, and may be connected to other external devices through the USB interface to send and receive information, or to charge the battery 440.

[0126] The memory 470 is hardware for storing various data processed by the aerosol generating device 400, and can store data processed by the control unit 410 and data to be processed. The memory 470 is at least one storage medium selected from a flash memory type memory, a hard disk type memory, a multimedia card micro type memory, a card type memory (such as an SD or XD memory, etc.), a random access memory (RAM), a static random access memory (SRAM), a read-only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a programmable read-only memory (PROM), a magnetic memory, a magnetic disk, and an optical disk. The memory 470 can store the operation time of the aerosol generating device 400, the maximum number of puffs, the current number of puffs, at least one temperature curve, and the user's smoking pattern data.

[0127] The communication unit 480 may include at least one component for communicating with other electronic devices. For example, the communication unit 480 may include a short-range wireless communication unit 482 and a wireless communication unit 484 .

[0128] The short-range wireless communication unit 482 includes a Bluetooth communication unit, a Bluetooth Low Energy (BLE) communication unit, a near field communication unit (Near Field Communication unit), a WLAN (Wi-Fi) communication unit, a Zigbee communication unit, an infrared (IrDA, infrared Data Association) communication unit, a WFD (Wi-Fi Direct) communication unit, an ultra wideband (UWB) communication unit, an Ant+ communication unit, etc., but is not limited thereto.

[0129] The wireless communication unit 484 may include, but is not limited to, a cellular network communication unit, an Internet communication unit, a computer network (e.g., a LAN or WAN) communication unit, etc. The wireless communication unit 484 may use subscriber information (e.g., an International Mobile Subscriber Identifier (IMSI)) to confirm and authenticate the aerosol generating device 400 within the communication network.

[0130] The control unit 410 may control the overall operation of the aerosol generating device 400. In one embodiment, the control unit 410 may include at least one processor. The processor may be implemented as a plurality of logic gate arrays, or may be implemented as a combination of a general-purpose microprocessor and a memory, wherein the memory stores a program executable by the microprocessor. It is easy to understand for a person skilled in the art to which the present invention belongs that the at least one processor may be other forms of hardware.

[0131] The control unit 410 may control the temperature of the heater 450 by controlling the power supply from the battery 440 to the heater 450. For example, the control unit 410 may control the power supply by controlling the switching of the switching element between the battery 440 and the heater 450. In another example, the heating direct circuit may control the power supply to the heater 450 according to the control command of the control unit 410.

[0132] The control unit 410 may analyze the detection result of the sensing unit 420 and control the subsequent process. For example, the control unit 410 may control the power supplied to the heater 450 according to the detection result of the sensing unit 420, thereby starting and shutting down the heater 450. For another example, the control unit 410 may control the amount of power supplied to the heater 450 and the power supply time according to the detection result of the sensing unit 420, so that the heater 450 is heated to a predetermined temperature or maintained at a suitable temperature.

[0133] The control unit 410 may control the output unit 430 according to the result detected by the sensing unit 420. For example, when the number of puffs counted by the puff sensor 426 reaches a preset number, the control unit 410 may inform the user through at least one of the display unit 432, the tactile unit 434, and the sound output unit 436 that the aerosol generating device 400 is about to stop.

[0134] In one embodiment, the control unit 410 may control the power supply time and / or power supply amount to the heater 450 according to the state of the aerosol generating product detected by the sensing unit 420. For example, when the aerosol generating product is in an over-humidified state, the control unit 410 may control the power supply time to the induction coil, thereby extending the preheating time of the aerosol generating product compared to the normal state.

[0135] One embodiment may be implemented as a storage medium, which includes instructions executable by a computer, such as a program module executable by a computer. Computer-readable media may be any available media that can be accessed by a computer, and includes all volatile media, non-volatile media, and removable media, non-removable media. In addition, computer-readable media may include computer storage media and communication media. Computer storage media include all volatile / non-volatile media and removable / non-removable media implemented by a specific method or technology for storing computer-readable instruction codes, data structures, program modules, or other data. Communication media typically include computer-readable instruction codes, data structures, program modules, or other data such as modulated data signals of carrier waves or other transmission mechanisms, and include any information transmission media.

[0136] Figure 7 FIG. 1 is a diagram showing an aerosol generating device according to an embodiment.

[0137] Reference Figure 7 , an aerosol generating device 500 (e.g., Figures 1 to 3 The aerosol generating device 1 and / or Figure 6 The aerosol generating device 400 may include a housing 510. The housing 510 may include a first end 510A (eg, a mouth end), a second end 510B (eg, a device end) opposite the first end 510A, and an extension 510C between the first end 510A and the second end 510B.

[0138] In one embodiment, the width or diameter of the first end portion 510A may be smaller than the width or diameter of the extension portion 510C. In one embodiment not shown, the width or diameter of the first end portion 510A may be substantially the same as the width or diameter of the extension portion 510C.

[0139] In one embodiment, the housing 510 may include a reservoir 512 (eg, a liquid reservoir). The reservoir 512 may be configured to store a liquid composition 513. The reservoir 512 may be disposed near the first end 510A.

[0140] In one embodiment, the reservoir 512 may include a channel 510D leading to the second end 510B. For example, the reservoir 512 may include a substantially cylindrical shape. The channel 510D may be disposed in a central portion of the reservoir 512. The aerosol may flow out of the housing 510 through the second end 510B along the channel 510D.

[0141] In one embodiment, the housing 510 may include a single reservoir 512 .

[0142] In one embodiment, the housing 510 may include a plurality of reservoirs 512. For example, the housing 510 may include a first reservoir 512A and a second reservoir 512B. The first reservoir 512A may be disposed on a first side of the extension 510C, and the second reservoir 512B may be disposed on a second side of the extension 510C opposite to the first side. The first reservoir 512A and the second reservoir 512B may face each other and be spaced apart. The first reservoir 512A and the second reservoir 512B may form a channel 510D.

[0143] In an embodiment, the reservoir 512 may be removably coupled to the housing 510. The reservoir 512 may be replaced with a new reservoir (not shown).

[0144] In one embodiment, the housing 510 may include a cavity 510E. The cavity 510E may be communicatively connected to the channel 510D. The width of the cavity 510E may be greater than the width of the channel 510D. In one embodiment, the cavity 510E may be disposed in the center of the single reservoir 512. In one embodiment, the cavity 510E may be disposed between the first reservoir 512A and the second reservoir 512B.

[0145] In one embodiment, the aerosol generating device 500 may include a control unit 520 (eg, Figures 1 to 3 The control unit 12 and / or Figure 6 control unit 410).

[0146] In one embodiment, the aerosol generating device 500 may include a battery 530 (e.g., Figures 1 to 3 The battery 11 and / or Figure 6 of battery 440).

[0147] In an embodiment, the aerosol generating device 500 may include a light source 540. The light source 540 may be configured to generate light. For example, the light source 540 may include at least one of a light emitting diode (LED), a laser light source, or any suitable light generating device, or a combination thereof.

[0148] In an embodiment, the aerosol generating device 500 may not include the light source 540. The aerosol generating device 500 may use light external to the housing 510.

[0149] In one embodiment, light source 540 may be configured to transmit light in the ultraviolet band, the visible light band (eg, about 380 nm to about 780 nm), and / or the infrared band.

[0150] In one embodiment, the light source 540 may be configured to generate light having a wavelength for generating surface plasmon resonance (SPR) of metal particles. The light source 540 may generate light in a wavelength band corresponding to an average maximum absorptivity according to the type of metal particles. In an embodiment where the metal particles are gold (Au), the light source 540 may generate light having a wavelength of about 600 nm to about 650 nm. In an embodiment where the metal particles are silver (Ag), the light source 540 may generate light having a wavelength of about 420 nm to about 470 nm.

[0151] In an embodiment, the aerosol generating device 500 may include a plurality of light sources 540. The plurality of light sources 540 may be implemented as light sources of the same type. At least a portion of the plurality of light sources 540 may be implemented as light sources of different types.

[0152] In one embodiment, the plurality of light sources 540 can be configured to emit light substantially simultaneously. In one embodiment, the plurality of light sources 540 can emit light at different times.

[0153] In one embodiment, the plurality of light sources 540 may be configured to emit light in substantially the same time period. In one embodiment, the illumination time of any one of the plurality of light sources 540 may be different from the illumination time of another light source 540 .

[0154] In one embodiment, the plurality of light sources 540 may be configured to generate light of substantially the same wavelength band. In one embodiment, the wavelength band of light generated from any one of the plurality of light sources 540 may be different from the wavelength band of light generated from another light source 540 .

[0155] In one embodiment, the plurality of light sources 540 may be configured to generate light having substantially the same illumination. In one embodiment, the illumination of any one of the plurality of light sources 540 may be different from the illumination of another light source 540 .

[0156] In one embodiment, the aerosol generating device 500 may include a core material 550. The core material 550 may be configured to transfer the liquid composition from the reservoir 512 to the heating element 560 (e.g., Figures 1 to 3 The heater 13 and / or Figure 4 The core material 550 may include a first end 550A (eg, a first core material end), a second end 550B (eg, a second core material end) opposite to the first end 550A, and an extension 550C extending between the first end 550A and the second end 550B.

[0157] In one embodiment, the first end 550A and the second end 550B may be disposed inside the reservoir 512. In one embodiment, the first end 550A may be disposed inside the first reservoir 512A, and the second end 550B may be disposed inside the second reservoir 512B.

[0158] In one embodiment, the first end 550A can be connected to a first portion of the reservoir 512, and the second end 550B can be connected to a second portion of the reservoir 512 that is different from the first portion. For example, the first end 550A can be connected to the first reservoir 512A, and the second end 550B can be connected to the second reservoir 512B.

[0159] In one embodiment, at least a portion of the extension 550C may be disposed in the cavity 510E. In one embodiment, at least a portion of the extension 550C may be disposed inside the reservoir 512. In one embodiment, at least a portion of the extension 550C may be disposed inside the first reservoir 512A and / or inside the second reservoir 512B.

[0160] In one embodiment, the aerosol generating device 500 may include a heating element 560. The heating element 560 may be configured to generate heat. In one embodiment, the heating element 560 may be configured to generate heat by surface plasmon resonance (SPR). SPR refers to the collective oscillation of electrons propagating along the interface between metal particles and the medium. For example, the collective oscillation of the electrons of the metal particles may be caused by light propagating from the outside of the heating element 560 (e.g., the light source 540). The excitation of the electrons of the metal particles can generate thermal energy, and the generated thermal energy can be transferred within the environment in which the heating element 560 is used. In one embodiment, the heating element 560 may be included in the core material 550. For example, the heating element 560 may be disposed inside the extension 550C.

[0161] Figure 8 2 is a diagram showing a core material according to an embodiment.

[0162] Reference Figure 8 , the core material 550 may include an extension portion 550C. The extension portion 550C may include a plurality of fiber bundles 551. The plurality of fiber bundles 551 may be intertwined. The plurality of fiber bundles 551 may be predominantly arranged at a first end portion (eg, Figure 7 The first end 550A) and the second end (eg, Figure 7 The fiber bundles 551 are arranged in a substantially parallel manner between the second end portions 550B of the fiber bundles 551. Here, "substantially parallel" means that the fiber bundles 551 are not completely parallel, but are wavy due to the entanglement of the fiber bundles 551 with each other.

[0163] In one embodiment, the plurality of fiber bundles 551 may include a cotton material. In one embodiment, the plurality of fiber bundles 551 may include a silica material.

[0164] In an embodiment, the core material 550 may include an opening 552. The opening 552 may be formed in a side of the extension 550C. The opening 552 may have any size and / or shape suitable for allowing light to pass from the outside of the core material 550 to the inside of the core material 550.

[0165] In one embodiment, the core material 550 may include a heating element 560. The heating element 560 may be embedded in the extension portion 550C. The heating element 560 may be wrapped by a plurality of fiber bundles 551. The heat generated by the heating element 560 may be transferred substantially in all directions inside the core material 550. The liquid composition absorbed by the plurality of fiber bundles 551 and / or the liquid composition present in the space between the plurality of fiber bundles 551 may be phase-changed into an aerosol by the heat generated by the heating element 560. The structure in which the heating element 560 is disposed inside the core material 550 may improve the atomization efficiency.

[0166] In one embodiment, the heating element 560 may include a substrate 561. The substrate 561 may include a first substrate surface 561A, a second substrate surface 561B opposite to the first substrate surface 561A, and a plurality of side substrate surfaces 561C located between the first substrate surface 561A and the second substrate surface 561B. The first substrate surface 561A may face the opening 552. In one embodiment, the substrate 561 may include various heat transfer materials. For example, the substrate 561 may include at least one of glass, stainless steel, or other heat transfer materials, or a combination thereof.

[0167] In one embodiment, the length or width of the substrate 561 may be greater than the width or diameter of the opening 552. In an embodiment not shown, the length or width of the substrate 561 may be substantially the same as the width or diameter of the opening 552.

[0168] In one embodiment, the heating element 560 may include a metal layer 562. The metal layer 562 may include a first layer 562A. The first layer 562A may be disposed on a first substrate surface 561A. In one embodiment, the metal layer 562 may include a second layer 562B. The second metal layer 562B may be disposed on a second substrate surface 561B. In one embodiment, the metal layer 562 may include a plurality of third layers 562C. The plurality of third layers 562C may be disposed on corresponding side substrate surfaces 561C, respectively.

[0169] In one embodiment, the metal layer 562 may include a plurality of metal particles 563. For example, the plurality of metal particles 563 may include at least one of gold, silver, platinum, palladium, or any metal material suitable for generating heat through SPR, or a combination thereof.

[0170] Fig. 9 is a drawing showing a core material according to another embodiment.

[0171] Reference Fig. 9 , core material 550-1 (for example, Figure 7 The core material 550 of the embodiment may include an extension portion 550C. The extension portion 550C may include a main body portion 553 and a hollow portion 554 formed inside the main body portion 553. The hollow portion 554 may be defined by the main body portion 553. In an embodiment, the main body portion 553 and the hollow portion 554 may each include a substantially cylindrical shape.

[0172] In one embodiment, the body portion 553 may include a metal material. In one embodiment, the body portion 553 may include a ceramic material.

[0173] In one embodiment, the extension portion 550C may include a plurality of air holes 555. The plurality of air holes 555 may allow the outside of the main body portion 553 and the hollow portion 554 to communicate with each other. Aerosol in the hollow portion 554 may flow out of the main body portion 553 through the plurality of air holes 555. The plurality of air holes 555 may be formed on the side of the main body portion 553.

[0174] In an embodiment, the core material 550 may include an opening 552-1. The opening 552-1 may be formed in the body portion 553. The opening 552-1 may have any size and / or shape suitable for allowing light to pass from the exterior of the body portion 553 to the hollow portion 554.

[0175] In one embodiment, the core material 550 may include a heating element 560. The heating element 560 may be disposed in the hollow portion 554. The heating element 560 may include a substrate 561 and a metal layer 562. The metal layer 562 may include a plurality of metal particles 563.

[0176] Fig.10 is a drawing showing a core material according to another embodiment.

[0177] Reference Fig.10 , core material 550-2 (for example, Figure 7 The core material 550-2 may include an extension portion 550C. The extension portion 550C may include a plurality of fiber bundles 551, a main body portion 553, a hollow portion 554, and a plurality of pores 555. The core material 550-2 may include an opening 552-1. The core material 550-2 may include a heating element 560. The heating element 560 may include a substrate 561 and a metal layer 562. The metal layer 562 may include a plurality of metal particles 563. In one embodiment, a plurality of fiber bundles 551 may surround the heating element 560. A plurality of fiber bundles 551 may be disposed in the hollow portion 554.

[0178] Fig.11 is a drawing showing a core material according to another embodiment.

[0179] Reference Fig.11 , core material 550-3 (for example, Figure 7 The core material 550 of the embodiment of the present invention may include an extension portion 550C. The extension portion 550C may include a main body portion 553, a hollow portion 554, and a plurality of pores 555. The core material 550-3 may include an opening 552-1. The core material 550-3 may include a heating element 560. The heating element 560 may include a substrate 561 and a metal layer 562. The metal layer 562 may include a plurality of metal particles 563.

[0180] In one embodiment, the core material 550-3 may include a light concentrator 570. The light concentrator 570 may be configured to concentrate light on a specific area of ​​the heat generating element 560 (eg, a partial area of ​​the metal layer 562). For example, the light concentrator 570 may include a convex lens. The light concentrator 570 may be disposed in the opening 552-1.

[0181] In one embodiment, the core material 550 - 3 may include a reflector 580 . The reflector 580 may be configured to reflect light toward the heat generating body 560 . The reflector 580 may be formed on an inner surface of the body portion 553 .

[0182] Fig.12 is a drawing showing a core material according to another embodiment.

[0183] Reference Fig.12, core material 550-4 (for example, Figure 7 The core material 550 of the embodiment of the present invention may include an extension portion 550C. The extension portion 550C may include a main body portion 553, a hollow portion 554, and a plurality of pores 555. The core material 550-3 may include an opening 552-1. The core material 550-3 may include a heating element 560. The heating element 560 may include a substrate 561 and a metal layer 562. The metal layer 562 may include a plurality of metal particles 563. The core material 550-3 may include a reflector 580.

[0184] In one embodiment, the core material 550-4 may include a light diffuser 571. The light diffuser 571 may be configured to diffuse light to substantially the entire area of ​​the heat generating element 560 (eg, the entire area of ​​the metal layer 562). For example, the light diffuser 571 may include a concave lens. The light diffuser 571 may be disposed in the opening 552-1.

[0185] Fig.13 is a three-dimensional diagram of a heating element according to an embodiment. Fig.14 is a plan view of a heating element according to an embodiment. Fig.15 According to an embodiment Fig.14 A cross-sectional view of the heating element along line 15-15.

[0186] Reference Figures 13 to 15 , the heating element 650 may include a substrate 651 (eg, Figures 8 to 12 The substrate 651 may include a first substrate surface 651A (eg, Figure 8 The first substrate surface 561A in the figure) and the second substrate surface 651B opposite to the first substrate surface 651A (for example, Figure 8 The second substrate surface 561B in the embodiment of the present invention.

[0187] In one embodiment, the substrate 651 may include various materials. For example, the substrate 651 may include glass, silicon (Si), silicon oxide (SiO 2 ), at least one of sapphire, polystyrene or polymethyl methacrylate, or a combination thereof.

[0188] In one embodiment, the substrate 651 may include a conductive material. In one embodiment, the substrate 651 may include an electrically insulating material.

[0189] In embodiments, the substrate 651 may have various thermal conductivities. For example, at a pressure of 1 bar and a temperature of 25° C., the substrate 651 may have a thermal conductivity of about 0.6 W / mK or less, about 1 W / mK to about 2 W / mK, about 2 W / mK to about 5 W / mK, about 5 W / mK to about 10 W / mK, about 10 W / mK to about 100 W / mK, or about 100 W / mK to about 200 W / mK.

[0190] In one embodiment, the heating element 650 may include a plurality of metal particles 653 (eg, Figures 8 to 12 The plurality of metal particles may be nanometer-sized. For example, the average maximum diameter of the plurality of metal particles may be about 1 μm or less. In one embodiment, the average maximum diameter of the plurality of metal particles may be about 700 nm or less, about 600 nm or less, about 500 nm or less, about 400 nm or less, about 300 nm or less, about 200 nm or less, about 150 nm or less, or about 100 nm or less. In one embodiment, the plurality of metal particles 653 may be formed of any material suitable for generating heat, for example, the plurality of metal particles 653 may include at least one of gold, silver, copper, palladium, platinum, aluminum, titanium, nickel, chromium, iron, cobalt, manganese, rhodium and ruthenium or a combination thereof.

[0191] In one embodiment, the plurality of metal particles 653 may be formed of any material suitable for generating heat by interacting with light of a certain wavelength band (e.g., a visible light wavelength band, i.e., about 380 nm to about 780 nm). The plurality of metal particles 653 may include at least one of gold, silver, copper, palladium, or platinum, or a combination thereof.

[0192] In one embodiment, the plurality of metal particles 653 may be formed of a metal material having an average maximum absorbance. The average maximum absorbance may be defined as the absorbance of a peak value that varies according to a wavelength band of light. The wavelength band of resonance of the plurality of metal particles 653 may include a wavelength band corresponding to the average maximum absorbance. The plurality of metal particles 653 may be formed of a metal material having an average maximum absorbance wavelength band between about 430 nm and about 450 nm, between about 480 nm and about 500 nm, between about 490 nm and about 510 nm, between about 500 nm and about 520 nm, between about 550 nm and about 570 nm, between about 600 nm and about 620 nm, between about 620 nm and about 640 nm, between about 630 nm and about 650 nm, between about 640 nm and about 660 nm, between about 680 nm and about 700 nm, or between about 700 nm and about 750 nm. The average maximum absorbance of the plurality of metal particles 653 may vary depending on the type of metal, the type of substrate 651, the size of a structure (e.g., a metal prism) formed by the plurality of metal particles 653, and / or the shape of the structure. For example, gold may have a maximum absorbance in a wavelength range of about 600 nm to about 650 nm. For example, silver may have a maximum absorbance in a wavelength range of about 420 nm to about 470 nm.

[0193] In one embodiment, the deposition thickness of the plurality of metal particles 653 may be about 10 nm or less. When the plurality of metal particles 653 are deposited on the substrate to have a thickness greater than 10 nm, an exothermic reaction in a structure (e.g., a metal prism) formed by the plurality of metal particles 653 may be reduced. When the thickness of the structure formed by the plurality of metal particles 653 exceeds 10 nm, the possibility of heat loss to the periphery of the heating element 650 may increase, and thus, the thermal efficiency of the heating element 650 may be reduced.

[0194] The metal prism 654 may be formed as a substantially single structure. The metal prism 654 may include a plurality of holes H.

[0195] In one embodiment, the metal prism 654 may include a first base surface 654A facing the first substrate surface 651A of the substrate 651 (see Fig.15 ), a second substrate surface 654B opposite to the first substrate surface 654A, and a plurality of side surfaces 654C1, 654C2 located between the first substrate surface 654A and the second substrate surface 654B. The first substrate surface 651A and the plurality of side surfaces 654C1, 654C2 may define a plurality of holes H.

[0196] In one embodiment, the first base surface 654A and the second base surface 654B may be substantially parallel to each other.

[0197] In one embodiment, the first base surface 654A and / or the second base surface 654B may be formed as a substantially flat surface.

[0198] In one embodiment, the distance between the first base surface 654A and the second base surface 654B (eg, the thickness of the metal prism 654) may be less than about 10 nm. When the thickness of the metal prism 654 exceeds 10 nm, the exothermic reaction of the plurality of metal particles forming the metal prism 654 may be reduced, thereby reducing the thermal efficiency of the heating element 650.

[0199] In one embodiment, the multiple side surfaces 654C1 and 654C2 of the metal prism 654 may face different directions. For example, the first side surface 654C1 may face a first direction (e.g., a first radial direction), and the second side surface 654C2 may face a second direction (e.g., a second radial direction) substantially opposite to the first direction.

[0200] In one embodiment, at least one of the plurality of side surfaces 654C1, 654C2 may be formed as a substantially curved surface. In one embodiment, the plurality of side surfaces 654C1, 654C2 may be formed as curved surfaces with substantially the same curvature. In one embodiment, the curvature of any one of the plurality of side surfaces 654C1, 654C2 may be different from the curvature of another side surface.

[0201] In one embodiment, the plurality of side surfaces 654C1 and 654C2 may be formed as curved surfaces that are concave toward the center of the metal prism 654. In one embodiment, at least one of the plurality of side surfaces 654C1 and 654C2 may be formed as a curved surface that is convex from the center of the metal prism 654.

[0202] In one embodiment, the metal prism 654 may include two sides. For example, the metal prism 654 may have a substantially semicircular or semicircular shape.

[0203] In one embodiment, some of the holes H among the plurality of holes H may be separated by a portion of the metal prism 654. In one embodiment, some of the plurality of holes H may be connected to each other.

[0204] In one embodiment, the average maximum diameter D of the plurality of holes H may be greater than about 10 nm, greater than about 50 nm, greater than about 90 nm, greater than about 100 nm, greater than about 150 nm, greater than about 200 nm, greater than about 300 nm, greater than about 350 nm, greater than about 450 nm, or greater than about 500 nm.

[0205] In one embodiment, the average maximum diameter D of the plurality of holes H may be less than about 1000 nm, less than about 900 nm, less than about 800 nm, less than about 700 nm, less than about 600 nm, or less than about 550 nm.

[0206] Without causing obvious technical conflicts, the features and forms of any embodiment described herein may be combined with the features and forms of any other embodiment.

Claims

1. A core material for an aerosol generating device, characterized in that: include: a first end portion; a second end portion, which is opposite to the first end portion; an extension extending between the first end and the second end; and The heat generating element is disposed inside the extension portion and is configured to generate heat by surface plasmon resonance.

2. The core material according to claim 1, characterized in that: The extension portion includes a plurality of fiber bundles, The heat generating element is embedded in the plurality of fiber bundles.

3. The core material according to claim 1, characterized in that: The extension portion comprises: Hollow parts; and a main body portion defining said hollow portion, The heat generating element is disposed in the hollow portion.

4. The core material according to claim 3, characterized in that: It also includes a plurality of fiber bundles, which are disposed in the hollow portion and arranged around the heat generating element.

5. The core material according to claim 1, characterized in that Also included is an opening formed in the extension portion.

6. The core material according to claim 5, characterized in that The invention also includes a light concentrator which is arranged in the opening.

7. The core material according to claim 5, characterized in that: Also included is a light diffuser disposed in the opening.

8. The core material according to claim 1, characterized in that The heating element comprises: substrate; and A plurality of metal particles are stacked on the substrate.

9. An aerosol generating device, characterized in that: include: The core material according to claim 1; as well as A light source is configured to emit light toward the core material.

10. The aerosol generating device according to claim 9, characterized in that Also includes: a reservoir configured to contain a liquid composition, Wherein, at least one of the first end and the second end is connected to the liquid reservoir.

11. The aerosol generating device according to claim 9, characterized in that: Also includes: A reflector is disposed on the extension portion and configured to reflect light toward the heating element.

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