Aerosol generator including a light collector

Abstract

The aerosol generating device includes a heating element configured to generate heat by surface plasmon resonance, and a light concentrator configured to concentrate light at the heating element.

Description

Technical Field

[0001] The present disclosure generally relates to an aerosol generator, for example, an aerosol generator including a concentrator.

Background Art

[0002] Techniques for generating heat to heat a target have been developed. As an example, heat can be generated by supplying electrical energy to an electrically resistive element. As another example, heat can be generated by electromagnetic coupling between a coil and a susceptor. The background art described above was retained or acquired during the derivation process of the present disclosure and is not necessarily prior art publicly disclosed to the general public before the filing of the present disclosure.

Summary of the Invention

Problems to be Solved by the Invention

[0003] One aspect of the present disclosure is to provide an aerosol generator that improves the efficiency of light utilization.

Means for Solving the Problems

[0004] The aerosol generator includes a substrate, an enclosure disposed on the substrate, a cavity formed by the substrate and the enclosure and configured to accommodate an aerosol article, and a heater including a heating element disposed on the substrate and configured to generate heat by surface plasmon resonance, and a concentrator configured to concentrate light with the heating element.

[0005] The substrate may include a base defining at least a part of the cavity and a flange extending from the base.

[0006] The substrate and the enclosure may include an opaque material.

[0007] The substrate may include a thermally conductive material.

[0008] The substrate can include a heat conduction barrier material.

[0009] The heating element can include a plurality of metal particles applied on the outer surface of the substrate.

[0010] The heating element can include a metal prism including a plurality of metal particles.

[0011] The metal prism can have a thickness exceeding 0 nm and not exceeding 10 nm.

[0012] The heating element can include a plurality of metal particles applied on one surface of the substrate and the inner surface of the enclosure.

[0013] The heater can include a reflector disposed on the inner surface of the enclosure.

[0014] The condenser can include a convex lens.

[0015] The aerosol generator can further include an optical modulator configured to adjust the light collection region of the condenser.

[0016] The aerosol generator can include a light source configured to emit light toward the condenser.

[0017] The aerosol generator can further include an interchangeable cartridge including the substrate, the enclosure, and the heating element.

[0018] The cartridge includes a substrate, an enclosure disposed on the substrate, a cavity formed by the substrate and the enclosure and configured to accommodate an aerosol generating article, and a heating element disposed on the substrate and configured to generate heat by surface plasmon resonance.

Advantages of the Invention

[0019] According to one embodiment, the size of components (e.g., a battery) within the aerosol generator can be reduced. According to one embodiment, the efficiency of light utilization can be increased. The effects of the aerosol generator according to one embodiment are not limited to those described above, and other effects not mentioned will be clearly understood by those skilled in the art from the following description.

[0020] The above-described, as well as other aspects, features, and advantages of specific embodiments of the present disclosure will become apparent from the following detailed description with reference to the accompanying drawings.

Brief Description of the Drawings

[0021]

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Mode for Carrying Out the Invention

[0022] In the embodiments, the terms used are selected as generally as possible currently while taking into account the functions in the present invention, but these vary depending on the intention or precedent of those skilled in the art, the emergence of new technologies, etc. Also, in certain cases, there are terms arbitrarily selected by the applicant, and in such cases, the meaning thereof will be described in detail in the explanatory part of the corresponding invention. Therefore, the terms used in the present invention are not merely the names of the terms, but must be defined based on the meaning of the terms and the overall content of the present invention.

[0023] Throughout the specification, when any part states that it "includes" any component, this does not exclude other components unless there is a contrary description, but means that it further includes other components. Also, terms such as "~ part" and "~ module" described in the specification mean units that process at least one function or operation, and these can be embodied in hardware or software or a combination of hardware and software.

[0024] As used herein, when preceding a list of elements, an expression such as "at least any one of" modifies the elements of the list and modifies the individual elements of the list. For example, expressions such as "at least one of a, b, or c" and "at least one of a, b, and c" must be interpreted to include a, b, c, or a and b, a and c, b and c, or a and b and c.

[0025] Hereinafter, with reference to the accompanying drawings, the embodiments of the present invention will be described in detail so that those having ordinary knowledge in the technical field to which the present invention belongs can easily implement them. However, the present invention can be realized in various different forms and is not limited to the embodiments described herein.

[0026] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0027] FIGS. 1 to 3 are diagrams showing an example in which an aerosol generating article is inserted into an aerosol generator.

[0028] Referring to FIG. 1, the aerosol generator 1 includes a battery 11, a control unit 12, and a heater 13. Referring to FIGS. 2 and 3, the aerosol generator 1 further includes a vaporizer 14. Further, an aerosol generating article 2 (for example, a roll tobacco) may be inserted into the internal space of the aerosol generator 1.

[0029] In the aerosol generator 1 shown in FIGS. 1 to 3, the components related to the present embodiment are illustrated. Therefore, those having ordinary knowledge in the technical field related to the present embodiment will be able to understand that the aerosol generator 1 may further include different general components in addition to the components shown in FIGS. 1 to 3.

[0030] Also, in FIGS. 2 and 3, the heater 13 is shown as being included in the aerosol generator 1, but the heater 13 may be omitted as necessary.

[0031] In FIG. 1, the battery 11, the control unit 12, and the heater 13 are shown as being arranged in a row. Also, in FIG. 2, the battery 11, the control unit 12, the vaporizer 14, and the heater 13 are shown as being arranged in a row. Also, in FIG. 3, the vaporizer 14 and the heater 13 are shown as being arranged in parallel. However, the internal structure of the aerosol generator 1 is not limited to that shown in FIGS. 1 to 3. In other words, depending on the design of the aerosol generator 1, the arrangements of the battery 11, the control unit 12, the heater 13, and the vaporizer 14 can be changed.

[0032] When the aerosol generating article 2 is inserted into the aerosol generator 1, the aerosol generator 1 can operate the heater 13 and / or the vaporizer 14 to generate aerosol. The aerosol generated by the heater 13 and / or the vaporizer 14 passes through the aerosol generating article 2 and is transmitted to the user.

[0033] Optionally, the aerosol generator 1 can heat the heater 13 even when the aerosol generating article 2 is not inserted into the aerosol generator 1.

[0034] The battery 11 supplies the power used for the operation of the aerosol generator 1. For example, the battery 11 supplies power so that the heater 13 or the vaporizer 14 can be heated, and supplies the power necessary for the operation of the control unit 12. Further, the battery 11 may supply the power necessary for the operation of a display, a sensor, a motor, etc. installed in the aerosol generator 1.

[0035] The control unit 12 generally controls the operation of the aerosol generator 1. Specifically, the control unit 12 controls the operation of not only the battery 11, the heater 13, and the vaporizer 14 but also other components included in the aerosol generator 1. Further, the control unit 12 may check the state of each component of the aerosol generator 1 and determine whether the aerosol generator 1 is in an operable state.

[0036] The control unit 12 includes at least one processor. The processor may be realized as an array of a plurality of logic gates, or may be realized as a combination of a general-purpose microprocessor and a memory storing a program executable by this microprocessor. Also, those having ordinary knowledge in the technical field to which this embodiment belongs can understand that it can be realized by another form of hardware.

[0037] The heater 13 is heated by the power supplied from the battery 11. For example, when the aerosol generating article is inserted into the aerosol generating device 1, the heater 13 may be disposed outside the aerosol generating article. Therefore, the heated heater 13 can raise the temperature of the aerosol generating substance in the aerosol generating article.

[0038] The heater 13 may be an electric resistance heater. For example, the heater 13 includes an electrically conductive track, and the heater 13 is heated when an electric current flows through the electrically conductive track. However, the heater 13 is not limited to the above-described example, and any heater that can heat to a desired temperature is applicable without limitation. Here, the desired temperature may be preset in the aerosol generating device 1 or may be set to a temperature desired by the user.

[0039] On the other hand, as a different example, the heater 13 may be an induction heating type heater. Specifically, the heater 13 may include an electrically conductive coil for heating the aerosol generating article by an induction heating method, and the aerosol generating article may include a susceptor that can be heated by the induction heating type heater.

[0040] For example, the heater 13 may include a tube type heating element, a plate type heating element, a needle type heating element, or a rod type heating element, and may heat the inside or outside of the aerosol generating article 2 according to the shape of the heating element.

[0041] Also, a plurality of heaters 13 may be arranged in the aerosol generating device 1. Here, the plurality of heaters 13 may be arranged to be inserted into the aerosol generating article 2, or may be arranged outside the aerosol generating article 2. Also, some of the plurality of heaters 13 may be arranged to be inserted into the aerosol generating article 2, and the rest may be arranged outside the aerosol generating article 2. Further, the shape of the heater 13 is not limited to the shapes shown in FIGS. 1 to 3, and may be manufactured in various shapes.

[0042] The vaporizer 14 heats the liquid-phase composition to generate an aerosol, and the generated aerosol can be transmitted to the user through the aerosol-generating article 2. In other words, the aerosol generated by the vaporizer 14 moves along the air flow path of the aerosol-generating device 1, and the air flow path can be configured such that the aerosol generated by the vaporizer 14 passes through the aerosol-generating article and is transmitted to the user.

[0043] For example, the vaporizer 14 includes, but is not limited to, a liquid storage part (for example, a storage place), liquid transmission means, and a heating element. For example, the liquid storage part, the liquid transmission means, and the heating element may be included in the aerosol-generating device 1 as independent modules.

[0044] The liquid storage part stores the liquid-phase composition. For example, the liquid-phase composition may be a liquid containing a tobacco-containing substance including a volatile tobacco fragrance component, or a liquid containing a non-tobacco substance. The liquid storage part may be manufactured so as to be detachable / attachable from the vaporizer 14, or may be manufactured integrally with the vaporizer 14.

[0045] For example, the liquid-phase composition may include water, a solvent, ethanol, a plant extract, a fragrance, a flavoring agent, or a vitamin mixture. The fragrance may include, but is not limited to, menthol, peppermint, spearmint oil, and fragrance components of various fruits. The flavoring agent includes components that can provide various fragrances or flavors to the user. The vitamin mixture is a mixture in which at least one of vitamin A, vitamin B, vitamin C, and vitamin E is mixed, but is not limited thereto. Further, the liquid-phase composition may include an aerosol-forming agent such as glycerin and propylene glycol.

[0046] The liquid transmission means can transmit the liquid-phase composition of the liquid storage part to the heating element. For example, the liquid transmission means may be a wick such as cotton fiber, ceramic fiber, glass fiber, or porous ceramic, but is not limited thereto.

[0047] The heating element is an element for heating the liquid composition transmitted by the liquid transmission means. For example, the heating element includes, but is not limited to, a metal heating wire, a metal hot plate, a ceramic heater, etc. Further, the heating element may be composed of a conductive filament such as a nichrome wire and may be arranged in a structure wound around the liquid transmission means. The heating element is heated by current supply, transfers heat to the liquid composition in contact with the heating element, and can heat the liquid composition. As a result, an aerosol can be generated.

[0048] For example, the vaporizer 14 is referred to as, but not limited to, a cartomizer or an atomizer.

[0049] On the other hand, the aerosol generating device 1 may further include a general configuration in addition to the battery 11, the control unit 12, the heater 13, and the vaporizer 14. For example, the aerosol generating device 1 may include a display capable of outputting visual information and / or a motor for outputting tactile information. Further, the aerosol generating device 1 may include at least one sensor (such as a puff detection sensor, a temperature detection sensor, an insertion detection sensor for the aerosol generating article, etc.). Also, the aerosol generating device 1 can be manufactured in a structure in which outside air can flow in or internal gas can flow out even when the aerosol generating article 2 is inserted.

[0050] Although not shown in FIGS. 1 to 3, the aerosol generating device 1 may constitute a system together with a separate cradle. For example, the cradle may be used for charging the battery 11 of the aerosol generating device 1. Or, the heater 13 may be heated in a state where the cradle and the aerosol generating device 1 are coupled.

[0051] The aerosol generating article 2 is similar to a general combustion-type aerosol generating article. For example, the aerosol generating article 2 is divided into a first part containing an aerosol generating substance and a second part containing a filter or the like. Alternatively, the second part of the aerosol generating article 2 may also contain an aerosol generating substance. For example, an aerosol generating substance made in the form of granules or capsules may be inserted into the second part.

[0052] The whole of the first part is inserted inside the aerosol generating device 1, and the second part is exposed to the outside. Alternatively, only a part of the first part may be inserted inside the aerosol generating device 1, or the whole of the first part and a part of the second part may be inserted. The user can inhale the aerosol while holding the second part in the mouth. Here, the aerosol is generated when outside air passes through the first part, and the generated aerosol is transmitted to the user's mouth through the second part.

[0053] As an example, outside air can flow in through at least one air passage formed in the aerosol generating device 1. For example, the opening and closing of the air passage formed in the aerosol generating device 1 and / or the size of the air passage can be adjusted by the user. Therefore, the amount of smoke, the smoking feeling, etc. can be adjusted by the user. As a different example, outside air may flow into the aerosol generating article 2 through at least one hole formed on the surface of the aerosol generating article 2.

[0054] Hereinafter, referring to FIGS. 4 and 5, an example of the aerosol generating article 2 will be described.

[0055] FIGS. 4 and 5 are diagrams showing an example of an aerosol generating article.

[0056] Referring to FIG. 4, the aerosol generating article 2 includes a tobacco rod 21 and a filter rod 22. The first part 21 described above with reference to FIGS. 1 to 3 includes the tobacco rod 21, and the second part 22 includes the filter rod 22.

[0057] In FIG. 4, the filter rod 22 is illustrated as a single segment, but it is not limited thereto. In other words, the filter rod 22 may be composed of a plurality of segments. For example, the filter rod 22 may include a segment for cooling the aerosol and a segment for filtering a predetermined component contained in the aerosol. Further, if necessary, the filter rod 22 may further include at least one segment for performing other functions.

[0058] The diameter of the aerosol generating article 2 is within the range of 5 mm to 9 mm, and the length may be about 48 mm, but it is not limited thereto. For example, the length of the tobacco rod 21 may be about 12 mm, the length of the first segment of the filter rod 22 may be about 10 mm, the length of the second segment of the filter rod 22 may be about 14 mm, and the length of the third segment of the filter rod 22 may be about 12 mm, but it is not limited thereto.

[0059] The aerosol generating article 2 is packaged by at least one wrapper 24. At least one hole for the inflow of outside air and the outflow of internal gas may be formed in the wrapper 24. As an example, the aerosol generating article 2 may be packaged by one wrapper 24. As a different example, the aerosol generating article 2 may be repeatedly packaged by two or more wrappers 24. For example, the tobacco rod 21 may be packaged by the first wrapper 241, and the filter rod 22 may be packaged by the wrappers 242, 243, 244. Then, the whole of the aerosol generating article 2 may be repackaged by a single wrapper 245. If the filter rod 22 is composed of a plurality of segments, each segment may be packaged by the wrappers 242, 243, 244.

[0060] The first wrapper 241 and the second wrapper 242 can be manufactured from common filter paper. For example, the first wrapper 241 and the second wrapper 242 may be porous or non-porous paper. Also, the first wrapper 241 and the second wrapper 242 may be manufactured from oil-resistant papers and / or aluminum-aluminum composite paper packaging materials.

[0061] The third wrapper 243 may be manufactured from hard paper. For example, the basis weight of the third wrapper 243 is included in the range of 88 g / m 2 ~96 g / m 2 and preferably may be included in the range of 90 g / m 2 ~94 g / m 2 Also, the thickness of the third wrapper 243 is included in the range of 120 μm to 130 μm, and preferably may be 125 μm.

[0062] The fourth wrapper 244 may be manufactured from oil-resistant hard paper. For example, the basis weight of the fourth wrapper 244 is included in the range of 88 g / m 2 ~96 g / m 2 and preferably may be included in the range of 90 g / m 2 ~94 g / m 2 Also, the thickness of the fourth wrapper 244 is included in the range of 120 μm to 130 μm, and preferably may be 125 μm.

[0063] The fifth wrapper 245 may be manufactured from sterilized paper (MFW). Here, sterilized paper (MFW) means paper that is specially manufactured so that its tensile strength, water resistance, smoothness, etc. are enhanced compared to general paper. For example, the basis weight of the fifth wrapper 245 is included in the range of 57 g / m 2 ~63 g / m 2 and preferably may be 60 g / m 2 Also, the thickness of the fifth wrapper 245 is included in the range of 64 μm to 70 μm, and preferably may be 67 μm.

[0064] The fifth wrapper 245 can be internally added with a predetermined substance. Here, silicon is cited as an example of the predetermined substance, but it is not limited thereto. For example, silicon has properties such as heat resistance with little change due to temperature, oxidation resistance that is not oxidized, resistance to various chemicals, water repellency to water, or electrical insulation. However, even if it is not silicon, as long as it is a substance having the above-described properties, it can be applied (or coated) to the fifth wrapper 245 without limitation.

[0065] The fifth wrapper 245 can prevent the phenomenon of the aerosol generating article 2 from burning. For example, if the tobacco rod 21 is heated by the heater 13, the aerosol generating article 2 may burn. Specifically, when the temperature rises above the ignition point of any one of the substances contained in the tobacco rod 21, the aerosol generating article 2 burns. Even in such a case, since the fifth wrapper 245 contains a non-combustible substance, the phenomenon of the aerosol generating article 2 burning is prevented.

[0066] Also, the fifth wrapper 245 can prevent the aerosol generating device (for example, the holder) from being contaminated by the substance generated by the aerosol generating article 2. Depending on the user's puff, a liquid substance is generated inside the aerosol generating article 2. For example, when the aerosol generated by the aerosol generating article 2 is cooled by the outside air, a liquid substance (for example, moisture, etc.) is generated. By the fifth wrapper 245 packaging the aerosol generating article 2, it is possible to prevent the liquid substance generated inside the aerosol generating article 2 from leaking to the outside of the aerosol generating article 2.

[0067] The tobacco rod 21 contains aerosol generating substances. For example, the aerosol generating substances include, but are not limited to, at least one of glycerin, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol. Further, the tobacco rod 21 can contain other additive substances such as flavoring agents, wetting agents and / or organic acids. Also, a flavoring liquid such as menthol or a humectant may be added to the tobacco rod 21 by spraying it onto the tobacco rod 21.

[0068] The tobacco rod 21 can be manufactured in various ways. For example, the tobacco rod 21 may be manufactured from a sheet, or may be manufactured from a strand. Also, the tobacco rod 21 may be manufactured from cut tobacco in which the tobacco sheet is finely cut. Further, the tobacco rod 21 may be surrounded by a heat conductive substance. For example, the heat conductive substance may be a metal foil such as aluminum foil, but is not limited thereto. As an example, the heat conductive substance surrounding the tobacco rod 21 can evenly disperse the heat transmitted to the tobacco rod and improve the thermal conductivity applied to the tobacco rod, thereby improving the taste of the tobacco. Also, the heat conductive substance surrounding the tobacco rod 21 is heated by an induction heating type heater and functions as a susceptor. Here, although not shown in the drawings, the tobacco rod 21 may further include an additional susceptor in addition to the heat conductive substance surrounding the outside.

[0069] The filter rod 22 may be an acetyl cellulose filter. On the other hand, there is no limitation on the shape of the filter rod 22. For example, the filter rod 22 may be a cylindrical type rod, or may be a tube type rod containing a hollow inside. Also, the filter rod 22 may be a recess type rod. If the filter rod 22 is composed of a plurality of segments, at least one of the plurality of segments may be manufactured in a different shape.

[0070] The first segment of the filter rod 22 may be an acetyl cellulose filter. For example, the first segment may be a tubular structure having a hollow inside. When the heater 13 is inserted by the first segment, it is possible to prevent the phenomenon that the internal substance of the tobacco rod 21 shifts backward, and a cooling effect of the aerosol can also be generated. The diameter of the hollow included in the first segment is preferably within the range of 2 mm to 4.5 mm, but is not limited thereto.

[0071] The length of the first segment is preferably within the range of 4 mm to 30 mm, but is not limited thereto. Preferably, the length of the first segment is 10 mm, but is not limited thereto.

[0072] The hardness of the first segment can be adjusted by adjusting the content of the plasticizer during the manufacture of the first segment. Further, the first segment may be manufactured by inserting a structure such as a film or a tube of the same or a release material inside (for example, a hollow).

[0073] The second segment of the filter rod 22 cools the aerosol generated by the heater 13 heating the tobacco rod 21. Therefore, the user can inhale the aerosol cooled at an appropriate temperature.

[0074] The length or diameter of the second segment can be determined variously according to the form of the aerosol generating article 2. For example, the length of the second segment may be appropriately adopted within the range of 7 mm to 20 mm. Preferably, the length of the second segment is about 14 mm, but is not limited thereto.

[0075] The second segment can be manufactured by weaving polymer fibers. In this case, a flavoring liquid may be applied to the fibers made of the polymer. Alternatively, the second segment may be manufactured by weaving together fibers made of a polymer and fibers to which a flavoring liquid has been applied. Alternatively, the second segment may be formed by a wound polymer sheet.

[0076] For example, the polymer can be manufactured from a material selected from the group consisting of polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polyethylene terephthalate (PET), polylactic acid (PLA), acetyl cellulose (CA), and aluminum foil.

[0077] By forming the second segment from woven polymer fibers or wound polymer sheets, the second segment may include one or more channels extending in the longitudinal direction. Here, the channel means a passage through which a gas (e.g., air or aerosol) passes.

[0078] For example, the second segment made of a wound polymer sheet may be formed from a material having a thickness between about 5 μm and about 300 μm, e.g., between about 10 μm and about 250 μm. Also, the total surface area of the second segment may be between about 300 mm 2 / mm and about 1000 mm 2 / mm. Also, the aerosol cooling element may be formed from a material having a specific surface area between about 10 mm 2 / mg and about 100 mm 2 / mg.

[0079] On the other hand, the second segment may include a thread containing a volatile fragrance component. Here, the volatile fragrance component may be menthol, but is not limited thereto. For example, the thread may be filled with a sufficient amount of menthol to provide 1.5 mg or more of menthol to the second segment.

[0080] The third segment of the filter rod 22 may be an acetyl cellulose filter. The length of the third segment can be appropriately adopted within the range of 4 mm to 20 mm. For example, the length of the third segment may be about 12 mm, but is not limited thereto.

[0081] In the process of manufacturing the third segment, it may be manufactured such that a fragrance is generated by injecting a flavoring liquid into the third segment. Alternatively, a separate fiber coated with the flavoring liquid may be inserted into the third segment. The aerosol generated by the tobacco rod 21 is cooled by passing through the second segment of the filter rod 22, and the cooled aerosol is transmitted to the user through the third segment. Therefore, when a flavoring element is added to the third segment, an effect is produced in which the persistence of the fragrance transmitted to the user is enhanced.

[0082] Further, the filter rod 22 may include at least one capsule 23. Here, the capsule 23 may perform a function of generating a fragrance or a function of generating an aerosol. For example, the capsule 23 may have a structure in which a liquid containing a fragrance is wrapped with a film. The capsule 23 may have a spherical or cylindrical shape, but is not limited thereto.

[0083] Referring to FIG. 5, the aerosol generating article 3 further includes a shear plug 33. The shear plug 33 is disposed on one side of the tobacco rod 31 facing the filter rod 32. The shear plug 33 prevents the tobacco rod 31 from detaching externally and prevents the aerosol liquefied from the tobacco rod 31 during smoking from flowing into the aerosol generating device (for example, FIGS. 1 to 3).

[0084] The filter rod 32 includes a first segment 321 and a second segment 322. Here, the first segment 321 corresponds to the first segment of the filter rod 22 shown in FIG. 4, and the second segment 322 corresponds to the third segment of the filter rod 22 shown in FIG. 4.

[0085] The diameter and overall length of the aerosol generating article 3 correspond to the diameter and overall length of the aerosol generating article 2 shown in FIG. 4. For example, the length of the shear plug 33 may be about 7 mm, the length of the tobacco rod 31 may be about 15 mm, the length of the first segment 321 may be about 12 mm, and the length of the second segment 322 may be about 14 mm, but is not limited thereto.

[0086] The aerosol generating article 3 is wrapped by at least one wrapper 35. At least one hole through which outside air can flow in or internal gas can flow out can be formed in the wrapper 35. For example, the shear plug 33 is wrapped by the first wrapper 351, the tobacco rod 31 is wrapped by the second wrapper 352, the first segment 321 is wrapped by the third wrapper 353, and the second segment 322 is wrapped by the fourth wrapper 354. Then, the whole aerosol generating article 3 can be repackaged by the fifth wrapper 355.

[0087] Also, at least one perforation 36 can be formed in the fifth wrapper 355. For example, the perforation 36 is formed in the region wrapping the tobacco rod 31, but is not limited thereto. The perforation 36 serves to transfer the heat generated by the heater 13 shown in FIGS. 2 and 3 to the inside of the tobacco rod 31.

[0088] Also, at least one capsule 34 may be included in the second segment 322. Here, the capsule 34 may perform a function of generating a fragrance or a function of generating an aerosol. For example, the capsule 34 may have a structure in which a liquid containing a fragrance is wrapped by a film. The capsule 34 has a spherical or cylindrical shape, but is not limited thereto.

[0089] The first wrapper 351 may be a general filter paper with a metal foil such as aluminum foil bonded thereto. For example, the overall thickness of the first wrapper 351 is included in the range of 45um to 55um, and may preferably be 50.3um. Also, the thickness of the metal foil of the first wrapper 351 is included in the range of 6um to 7um, and may preferably be 6.3um. Also, the weight of the first wrapper 351 is 50g / m 2 ~55g / m 2 and is included in the range of, and may preferably be 2 53g / m.

[0090] The second wrapper 352 and the third wrapper 353 are made of general filter wrapping paper. For example, the second wrapper 352 and the third wrapper 353 may be porous wrapping paper or non-porous wrapping paper.

[0091] For example, the porosity of the second wrapper 352 may be 35000 CU, but it is not limited thereto. Also, the thickness of the second wrapper 352 is included in the range of 70 μm to 80 μm, and preferably may be 78 μm. Further, the basis weight of the second wrapper 352 is included in the range of 20 g / m 2 to 25 g / m 2 and preferably may be 23.5 g / m

[0092] For example, the porosity of the third wrapper 353 may be 24000 CU, but it is not limited thereto. Also, the thickness of the third wrapper 353 is included in the range of 60 μm to 70 μm, and preferably may be 68 μm. Further, the basis weight of the third wrapper 353 is included in the range of 20 g / m 2 to 25 g / m 2 and preferably may be 21 g / m 2 and preferably may be 21 g / m

[0093] The fourth wrapper 354 may be made of PLA laminated paper. Here, the PLA laminated paper means triple paper including a paper layer, a PLA layer, and a paper layer. For example, the thickness of the fourth wrapper 354 is included in the range of 100 μm to 120 μm, and preferably may be 110 μm. Further, the basis weight of the fourth wrapper 354 is included in the range of 80 g / m 2 to 100 g / m 2 and preferably may be 88 g / m 2 and preferably may be 88 g / m

[0094] The fifth wrapper 355 may be made of sterilized paper (MFW). Here, the sterilized paper (MFW) means paper specially manufactured so that the tensile strength, water resistance, smoothness, etc. are enhanced compared to general paper. For example, the basis weight of the fifth wrapper 355 is included in the range of 57 g / m 2 to 63 g / m 2 and preferably may be 60 g / m 2It may also be so. Also, the thickness of the fifth wrapper 355 is included within the range of 64 μm to 70 μm, and preferably may be 67 μm.

[0095] The fifth wrapper 355 may have a predetermined substance added thereto. Here, an example of the predetermined substance is silicon, but it is not limited thereto. For example, silicon has properties such as heat resistance with little change due to temperature, oxidation resistance that is not oxidized, resistance to various chemicals, water repellency to water, or electrical insulation. However, even if it is not silicon, as long as it is a substance having the above-described properties, it can be applied (or coated) to the fifth wrapper 355 without limitation.

[0096] The shear plug 33 can be manufactured from acetyl cellulose. As an example, the shear plug 33 may be manufactured by adding a plasticizer (for example, triacetin) to acetyl cellulose tow. The mono denier of the filaments constituting the acetyl cellulose tow may be included within the range of 1.0 to 10.0, and preferably may be included within the range of 4.0 to 6.0. More preferably, the mono denier of the filaments of the shear plug 33 may be about 5.0. Also, the cross-section of the filaments constituting the shear plug 33 may be Y-shaped. The total denier of the shear plug 33 may be included within the range of 20,000 to 30,000, and preferably may be included within the range of 25,000 to 30,000. More preferably, the total denier of the shear plug 33 may be 28,000.

[0097] Also, if necessary, the shear plug 33 may include at least one channel, and the cross-sectional shape of the channel can be manufactured in various ways.

[0098] The tobacco rod 31 corresponds to the tobacco rod 21 described above with reference to FIG. 4. Therefore, specific descriptions of the tobacco rod 31 will be omitted below.

[0099] The first segment 321 can be manufactured from acetyl cellulose. For example, the first segment may be a tubular structure with a hollow interior. The first segment 321 can be manufactured by adding a plasticizer (e.g., triacetin) to acetyl cellulose tow. For example, the monodenier and total denier of the first segment 321 may be the same as those of the shear plug 33.

[0100] The second segment 322 can be manufactured from acetyl cellulose. The monodenier of the filaments constituting the second segment 322 may be included in the range of 1.0 to 10.0, preferably, it may be included in the range of 8.0 to 10.0. More preferably, the monodenier of the filaments of the second segment 322 may be 9.0. Also, the cross-section of the filaments of the second segment 322 may be Y-shaped. The total denier of the second segment 322 may be included in the range of 20000 to 30000, preferably, it may be 25000.

[0101] FIG. 6 is a block diagram of an aerosol generating device 400 according to another embodiment.

[0102] The aerosol generating device 400 includes a control unit 410, a detection 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 that shown in FIG. 6. That is, those having ordinary knowledge in the technical field related to this embodiment will understand that, depending on the design of the aerosol generating device 400, some of the configurations shown in FIG. 6 may be omitted or new configurations may be further added.

[0103] The detection unit 420 detects the state of the aerosol generator 400 or the state around the aerosol generator 400, and transmits the detected information to the control unit 410. Based on the detected information, the control unit 410 can control the aerosol generator 400 so that various functions such as operation control of the heater 450, restriction of smoking, determination of whether an aerosol generating article (e.g., a cigarette, a cartridge, etc.) is inserted, and notification display are executed.

[0104] The detection unit 420 includes at least one of a temperature sensor 422, an insertion detection sensor 424, and a puff sensor 426, but is not limited thereto.

[0105] The temperature sensor 422 detects the temperature at which the heater 450 (or the aerosol generating substance) heats. The aerosol generator 400 may include a separate temperature sensor for detecting the temperature of the heater 450, or the heater 450 itself may serve as the temperature sensor. Alternatively, the temperature sensor 422 may be arranged around the battery 440 so as to monitor the temperature of the battery 440.

[0106] The insertion detection sensor 424 can detect the insertion and / or removal of an aerosol generating article. For example, the insertion detection sensor 424 may include at least one of a film sensor, a pressure sensor, a light sensor, a resistive sensor, a capacitive sensor, an inductive sensor, and an infrared sensor, and can detect a signal change due to the insertion and / or removal of the aerosol generating article.

[0107] The puff sensor 426 can detect the user's puff based on various physical changes in the air flow path or air flow channel. For example, the puff sensor 426 may detect the user's puff based on any one of a temperature change, a flow change, a voltage change, and a pressure change.

[0108] In addition to the sensors 422 to 426 described above, the detection unit 420 may further include at least one of an on / humidity sensor, a barometric 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 the function of the angle sensor can be intuitively inferred by those skilled in the art from its name, a specific description thereof is omitted.

[0109] The output unit 430 outputs information regarding the state of the aerosol generator 400 and provides it to the user. The output unit 430 includes at least one of a display unit 432, a haptic unit 434, and an acoustic output unit 436, but is not limited thereto. When the display unit 432 and the touch pad form a layer structure and are configured as a touch screen, the display unit 432 may be used as an input device in addition to an output device.

[0110] The display unit 432 can visually provide information regarding the aerosol generator 400 to the user. For example, the information regarding the aerosol generator 400 means various information such as the charge / discharge state of the battery 440 of the aerosol generator 400, the preheating state of the heater 450, the insertion / removal state of the aerosol article, or the state in which the use of the aerosol generator 400 is restricted (e.g., detection of an abnormal article), and the display unit 432 may output the information to the outside. The display unit 432 may be, for example, a liquid crystal display panel (LCD), an organic light emitting display panel (OLED), or the like. Further, the display unit 432 may be in the state of an LED light emitting element.

[0111] The haptic unit 434 can convert an electrical signal into a mechanical stimulus or an electrical stimulus and provide information regarding the aerosol generator 400 to the user tactilely. For example, the haptic unit 434 may include a motor, a piezoelectric element, or an electrical stimulation device.

[0112] The audio output unit 436 can aurally provide information about the aerosol generator 400 to the user. For example, the audio output unit 436 can convert an electrical signal into an acoustic signal and output it externally.

[0113] The battery 440 supplies the power used for the operation of the aerosol generator 400. The battery 440 can supply power so that the heater 450 can be heated. Also, the battery 440 supplies the power necessary for the operation of different components (for example, the detection unit 420, the output unit 430, the user input unit 460, the memory 470, and the communication unit 480) provided in the aerosol generator 400. The battery 440 may be a rechargeable battery or a disposable battery. For example, the battery 440 may be a lithium polymer (LiPoly) battery, but is not limited thereto.

[0114] The heater 450 is supplied with power from the battery 440 and heats the aerosol generating substance. Although not shown in FIG. 6, the aerosol generator 400 may further include a power conversion circuit (for example, a DC / DC converter) that converts the power of the battery 440 and supplies it to the heater 450. Also, when the aerosol generator 400 generates aerosol by an induction heating method, the aerosol generator 400 may further include a DC / AC converter that converts the DC power supply of the battery 440 into an AC power supply.

[0115] The control unit 410, the detection unit 420, the output unit 430, the user input unit 460, the memory 470, and the communication unit 480 can be powered from the battery 440 and perform their functions. Although not shown in FIG. 6, it may further include a power conversion circuit, such as an LDO (low dropout) circuit or a voltage regulator circuit, that converts the power of the battery 440 and supplies it to each component.

[0116] In one embodiment, the heater 450 may be formed of any suitable electrically resistive material. For example, suitable electrically resistive materials may include metals or metal alloys such as titanium, zirconium, tantalum, platinum, nickel, cobalt, chromium, hafnium, niobium, molybdenum, tungsten, tin, gallium, manganese, iron, copper, stainless steel, nichrome, etc., but are not limited thereto. Further, the heater 450 may be realized as a metal wire, a metal plate with an electrically conductive track disposed thereon, a ceramic heating element, etc., but is not limited thereto.

[0117] In one embodiment, the heater 450 may be an induction heating type heater. For example, the heater 450 may generate heat through a magnetic field applied by a coil and may include a susceptor for heating the aerosol product substance.

[0118] In one 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 phase.

[0119] The user input unit 460 receives information input from the user or outputs information to the user. For example, the user input unit 460 includes a key pad, a dome switch, a touch pad (capacitive touch type, pressure resistive film type, infrared detection type, surface acoustic wave conduction type, integral tension measurement type, piezo effect type, etc.), a jog wheel, a jog switch, etc., but is not limited thereto. Also, although not shown in FIG. 6, the aerosol generating device 400 further includes a connection interface such as a USB (universal serial bus) interface, and is connected to other external devices via a connection interface such as a USB interface to transmit and receive information or to charge the battery 440.

[0120] Memory 470 may store data processed by the control unit 410 and data to be processed, as hardware for storing various data processed within the aerosol generator 400. Memory 470 may include at least one type of storage medium such as a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (such as an SD or XD memory), a RAM (random access memory), an SRAM (static random access memory), a ROM (read-only memory), an EEPROM (electrically erasable programmable read-only memory), a PROM (programmable read-only memory), a magnetic memory, a magnetic disk, or an optical disk. Memory 470 may store data such as the operating time of the aerosol generator 400, the maximum number of puffs, the current number of puffs, at least one temperature profile, and data regarding the user's smoking pattern.

[0121] The communication unit 480 includes at least one component for communication with other electronic devices. For example, the communication unit 480 includes a short-range communication unit 482 and a wireless communication unit 484.

[0122] The short-range wireless communication unit 482 includes, but is not limited to, a Bluetooth (registered trademark) communication unit, a BLE (Bluetooth (registered trademark) Low Energy) communication unit, a Near Field Communication unit, a WLAN (Wi-Fi) communication unit, a Zigbee (registered trademark) communication unit, an infrared (IrDA, infrared Data Association) communication unit, a WFD (Wi-Fi Direct) communication unit, a UWB (ultra wideband) communication unit, an Ant+ communication unit, etc.

[0123] The wireless communication unit 484 includes, but is not limited to, a cellular network communication unit, an Internet communication unit, a computer network (e.g., LAN or WAN) communication unit, etc. The wireless communication unit 484 may confirm and authenticate the aerosol generator 400 within the communication network using subscriber information (e.g., International Mobile Subscriber Identifier (IMSI)).

[0124] The control unit 410 controls the overall operation of the aerosol generator 400. In one embodiment, the control unit 410 may include at least one processor. The processor may be implemented as an array of a plurality of logic gates and can be implemented as a combination of a general-purpose microprocessor and a memory storing a program executable by the microprocessor. Also, those with ordinary knowledge in the technical field to which this embodiment belongs will understand that it can be implemented in other forms of hardware.

[0125] The control unit 410 can control the temperature of the heater 450 by controlling the supply of power from the battery 440 to the heater 450. For example, the control unit 410 can control the power supply by controlling the switching of a switching element between the battery 440 and the heater 450. As a different example, according to the control command of the control unit 410, a direct heating circuit may control the power supply to the heater 450.

[0126] The control unit 410 analyzes the results detected by the detection unit 420 and then controls the processes to be executed. For example, the control unit 410 can control the power supplied to the heater 450 so that the operation of the heater 450 is disclosed or terminated based on the results detected by the detection unit 420. As a different example, the control unit 410 can control the amount of power supplied to the heater 450 and the time for which the power is supplied so that the heater 450 is heated to a predetermined temperature or can maintain an appropriate temperature based on the results detected by the detection unit 420.

[0127] Based on the results detected by the detection unit 420, the control unit 410 can control the output unit 430. For example, when the puff count counted via the puff sensor 426 reaches a preset number of times, the control unit 410 can notify the user that the aerosol generator 400 will end soon via at least one of the display unit 432, the haptic unit 434, and the acoustic output unit 436.

[0128] In one embodiment, the control unit 410 can control the power supply time and / or the power supply amount to the heater 450 according to the state of the aerosol generating article detected by the detection unit 420. For example, when the aerosol generating article is in an over-wet state, the control unit 410 can control the power supply time to the induction coil and increase the preheating time compared to when the aerosol generating article is in a general state.

[0129] One embodiment may also be implemented in the form of a recording medium including computer-executable instructions such as program modules executed by a computer. The computer-readable recording medium may be any usable medium accessed by a computer, including all volatile and non-volatile media, separable and non-separable media. Also, the computer-readable recording medium can include all computer storage media and communication media. The computer storage media may include all volatile and non-volatile, separable and non-separable media implemented by any method or technology for storing information such as computer-readable instructions, data structures, program modules, or other data. The communication media typically includes modulated data signals such as computer-readable instructions, data structures, program modules, or other data, or other transmission mechanisms, and includes any information transmission medium.

[0130] FIG. 7 is a diagram showing an aerosol generation system according to one embodiment.

[0131] Referring to FIG. 7, the aerosol generation system 500 includes an aerosol generation article 501 (e.g., the aerosol generation article 2 of FIGS. 1 to 4 and / or the aerosol generation article 3 of FIG. 5), and an aerosol generation device 502 (e.g., the aerosol generation device 1 of FIGS. 1 to 3 and / or the aerosol generation device 400 of FIG. 6).

[0132] In one embodiment, the aerosol generation device 502 includes a housing 510. The housing 510 includes a first end 510A (e.g., the mouthpiece end), a second end 510B (e.g., the device end) opposite the first end 510A, and an extension 510C between the first end 510A and the second end 510B.

[0133] In one embodiment, the width or diameter of the first end 510A may be smaller than the width or diameter of the extension 510C. In an embodiment not shown, the width or diameter of the first end 510A may be substantially the same as the width or diameter of the extension 510C.

[0134] In one embodiment, the housing 510 includes a plurality of parts. For example, the housing 510 includes a device part 511 and a cartridge 512. The device part 511 includes the second end 510B. The device part 511 includes at least a portion of the extension 510C. The cartridge 512 includes the first end 510A. The cartridge 512 includes at least a portion of the extension 510C.

[0135] In one embodiment, the device part 511 includes a control unit 520, a battery 530, a light source 540, and an optical assembly 560, and the cartridge 512 includes a heater 550. In one embodiment, the device part 511 includes a control unit 520, a battery 530, and a light source 540, and the cartridge 512 includes a heater 550 and an optical assembly 560.

[0136] In one embodiment, the cartridge 512 may be detachably coupled to the device part 511. The cartridge 512 may be replaced with a new cartridge (not shown).

[0137] In one embodiment, the aerosol generator 502 includes a control unit 520 (for example, including the control unit 12 in FIGS. 1-3 and / or the control unit 410 in FIG. 6).

[0138] In one embodiment, the aerosol generator 502 includes a battery 530 (for example, the battery 11 in FIGS. 1-3 and / or the battery 440 in FIG. 6).

[0139] In one embodiment, the aerosol generator 502 includes 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 or a combination of light-emitting diodes (LEDs), laser light sources, or any suitable light generation device.

[0140] In one embodiment, the aerosol generator 502 may not include the light source 540. Instead, the aerosol generator 502 can use light outside the housing 510.

[0141] In one embodiment, the light source 540 may be configured to transmit light in the ultraviolet band, visible light band (for example, about 380 nm to about 780 nm), and / or infrared band.

[0142] In one embodiment, the light source 540 can be configured to generate light having a wavelength for generating surface plasmon resonance of metal particles. The light source 540 can generate light in a wavelength band corresponding to the average maximum absorbance according to the type of metal particles. In an embodiment where the metal particles are gold (Au), the light source 540 can 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 can generate light having a wavelength of about 420 nm to about 470 nm.

[0143] In one embodiment, the aerosol generator 502 includes a plurality of light sources 540. The plurality of light sources 540 may be realized by the same type of light source. Alternatively, at least some of the plurality of light sources 540 may be realized by different types of light sources.

[0144] In one embodiment, the plurality of light sources 540 may be configured to generate light substantially simultaneously. Alternatively, at least one of the plurality of light sources 540 may generate light at different times.

[0145] In one embodiment, the plurality of light sources 540 may be configured to generate light for substantially the same period of time. Alternatively, the irradiation time of at least one light source 540 may be different from that of another light source 540.

[0146] In one embodiment, the plurality of light sources 540 may be configured to generate light in substantially the same wavelength band. Alternatively, at least one of the plurality of light sources 540 can generate light having a different wavelength band.

[0147] In one embodiment, the plurality of light sources 540 may be configured to generate light at substantially the same illuminance. Alternatively, the illuminance of at least one of the plurality of light sources 540 may be different from that of another light source 540.

[0148] In one embodiment, the aerosol generator 502 includes a heater 550 (e.g., heater 13 of FIGS. 1-3 and / or heater 450 of FIG. 4). The heater 550 may be configured to heat the aerosol generating article 501.

[0149] In one embodiment, the aerosol generator 502 includes an optical assembly 560. The optical assembly 560 may be configured to transmit light with the heater 550. For example, the optical assembly 560 may be configured to transmit external light and / or the light of the light source 540.

[0150] FIG. 8 is a diagram showing a heater according to one embodiment.

[0151] Referring to FIG. 8, the heater 550 includes a substrate 551. The substrate 551 includes a base 551A. The base 551A includes a first base surface F11 (e.g., the -Z direction surface in FIG. 8) and a second base surface F12 (e.g., the +Z direction surface in FIG. 8) opposite to the first base surface F11.

[0152] In one embodiment, the substrate 551 includes a flange 551B. The flange 551B includes a first flange surface F13 (e.g., the -Z direction surface in FIG. 8) and a second flange surface F14 (e.g., the +Z direction surface in FIG. 8) opposite to the first flange surface F13. The flange 551B may extend or expand from the base 551A in a first direction (e.g., the X-axis direction).

[0153] In one embodiment, the base 551A and the flange 551B may be integrally and seamlessly connected.

[0154] In one embodiment, the first base surface F11 and the first flange surface F13 are on substantially the same plane. The second base surface F12 and the second flange surface F14 are on substantially the same plane.

[0155] In one embodiment, the substrate 551 includes a thermally conductive material. The thermally conductive material has a relatively high thermal conductivity. For example, the thermally conductive material has a thermal conductivity of about 1 W / mK or more at a temperature of 1 bar and 25°C. In one embodiment, the substrate 551 may include at least one or a combination of silicon (Si), silicon dioxide (SiO2), sapphire, polystyrene, polymethyl methacrylate, or any other material suitable for heat conduction. The thermally conductive material causes overall heating of the substrate 551.

[0156] In one embodiment, the substrate 551 includes a thermal barrier material. The thermal barrier material has a relatively low thermal conductivity. For example, the thermal barrier material has a thermal conductivity of less than about 1 W / mK at a temperature of 1 bar and 25°C. In one embodiment, the substrate 551 includes glass. The thermal barrier material causes local heating of the substrate 551.

[0157] In one embodiment, the base 551A includes a thermally conductive material, and the flange 551B includes a thermal barrier material. In one embodiment, the base 551A includes a thermal barrier material, and the flange 551B includes a thermally conductive material. In one embodiment, a partial region of the base 551A includes a thermally conductive material, and another region includes a thermal barrier material. In one embodiment, a partial region of the flange 551B includes a thermally conductive material, and another region includes a thermal barrier material.

[0158] In one embodiment, the substrate 551 includes an opaque material. The opaque material can substantially reduce light scattering of the substrate 551. In one embodiment, the substrate 551 includes a translucent material. In one embodiment, the substrate 551 includes a transparent material.

[0159] In one embodiment, the base 551A includes an opaque material, a translucent material, or a transparent material. In one embodiment, a partial region of the base 551A includes any one of an opaque material, a translucent material, or a transparent material, and another region of the base 551A includes another one of an opaque material, a translucent material, or a transparent material.

[0160] In one embodiment, the flange 551B includes an opaque material, a translucent material, or a transparent material. In one embodiment, a partial region of the flange 551B includes any one of an opaque material, a translucent material, or a transparent material, and another region of the flange 551B includes another one of an opaque material, a translucent material, or a transparent material.

[0161] In one embodiment, the heater 550 includes an enclosure 552. The enclosure 552 includes a portion 552A of the first enclosure. The portion 552A of the first enclosure extends from the second base surface F12. The portion 552A of the first enclosure extends in a second direction (e.g., the Z-axis direction) that intersects (e.g., is orthogonal to) the first direction (e.g., the X-axis direction). The portion 552A of the first enclosure includes a first outer enclosure surface F21 and a first inner enclosure surface F22 opposite the first outer enclosure surface F21.

[0162] In one embodiment, the base 551A and the portion 552A of the first enclosure may be integrally and seamlessly connected.

[0163] In an embodiment not shown, the portion 552A of the first enclosure extends in a second direction (e.g., the + / -Z direction) from the second flange surface F14. The flange 551B and the portion 552A of the first enclosure may be integrally and seamlessly connected.

[0164] In one embodiment, the enclosure 552 includes a second enclosure portion 552B. The second enclosure portion 552B is connected to the first enclosure portion 552A. The second enclosure portion 552B extends in a first direction (e.g., the X-axis direction). The second enclosure portion 552B includes a second outer enclosure surface F23 and a second inner enclosure surface F24 opposite the second outer enclosure surface F23. In one embodiment, the portion 552A of the first enclosure and the portion 552B of the second enclosure may be integrally and seamlessly connected.

[0165] In one embodiment, the enclosure 552 includes a thermally conductive material. The thermally conductive material has a relatively high thermal conductivity. For example, the thermally conductive material has a thermal conductivity of about 1 W / mK or more at a pressure of 1 bar and a temperature of 25°C. In one embodiment, the enclosure 552 may include at least one or a combination of silicon (Si), silicon dioxide (SiO2), sapphire, polystyrene, polymethyl methacrylate, or any other material suitable for heat conduction.

[0166] In one embodiment, the enclosure 552 includes a thermal barrier material. The thermal barrier material has a relatively low thermal conductivity. For example, the thermal barrier material has a thermal conductivity of less than about 1 W / mK at a pressure of 1 bar and a temperature of 25°C. In one embodiment, the enclosure 552 includes glass.

[0167] In one embodiment, the portion 552A of the first enclosure includes a thermally conductive material, and the portion 552B of the second enclosure includes a thermal barrier material. In one embodiment, the portion 552A of the first enclosure includes a thermal barrier material, and the portion 552B of the second enclosure includes a thermally conductive material.

[0168] In one embodiment, the enclosure 552 includes an opaque material. The opaque material can substantially reduce light scattering of the enclosure 552. In one embodiment, the enclosure 552 includes a translucent material. In one embodiment, the enclosure 552 includes a transparent material.

[0169] In one embodiment, the portion 552A of the first enclosure includes an opaque material, a translucent material, or a transparent material. In one embodiment, a partial region of the portion 552A of the first enclosure includes any one of an opaque material, a translucent material, or a transparent material, and another region of the portion 552A of the first enclosure includes another one of an opaque material, a translucent material, or a transparent material.

[0170] In one embodiment, the portion 552B of the second enclosure includes an opaque material, a translucent material, or a transparent material. In one embodiment, a partial region of the portion 552B of the second enclosure includes one of an opaque material, a translucent material, or a transparent material, and another region of the portion 552B of the second enclosure includes another one of an opaque material, a translucent material, or a transparent material.

[0171] In one embodiment, the heater 550 includes a cavity 553. The cavity 553 is configured to accommodate an aerosol-generating article (e.g., the aerosol-generating article 2 of FIGS. 1-4, the aerosol-generating article 3 of FIG. 5, and / or the aerosol-generating article 501 of FIG. 7). The cavity 553 may be defined by a second base surface F12, a first inner enclosure surface F22, and a second inner enclosure surface F24.

[0172] In one embodiment, the heater 550 includes a heating element 554. The heating element 554 may be configured to generate heat by surface plasmon resonance (SPR), which represents a collective oscillation of electrons propagating along the interface of metal particles with a medium. For example, the collective oscillation of electrons of the metal particles may be generated by light from outside the heating element 554. The excitation of electrons of the metal particles generates thermal energy, and the generated thermal energy can be transmitted within the environment where the heating element 554 is present. In one embodiment, the heating element 554 may be disposed on the first base surface F11. In one embodiment, the heating element 554 may be disposed on the first flange surface F13. In one embodiment, the heating element 554 includes a plurality of metal particles.

[0173] FIG. 9 is a diagram showing an optical assembly according to one embodiment.

[0174] Referring to FIG. 9, the optical assembly 560 includes a lens 561. The lens 561 can be configured to concentrate light incident on the lens 561 into a region (e.g., a light collecting region). For example, the lens 561 may include a convex lens.

[0175] In one embodiment, the optical assembly 560 includes a support 562. The support 562 is configured to support the lens 561. The support 562 may be connected to a non-effective region (e.g., a side region) of the lens 561 where light does not pass through.

[0176] In one embodiment, the optical assembly 560 includes an optical modulator 563. The optical modulator 563 may be configured to change the position of the light collecting region. For example, the optical modulator 563 includes a first electromagnetic element 563A (e.g., a magnet) disposed on the support 562, and a second electromagnetic element 563B (e.g., a coil) configured to be electromagnetically coupled to the first electromagnetic element 563A.

[0177] FIG. 10 is a perspective view of a heater according to one embodiment. FIG. 11 is a plan view of a part of the heater shown in FIG. 10 according to one embodiment. FIG. 12 is a cross-sectional view of the heater of FIG. 11 along line 12-12 according to one embodiment.

[0178] Referring to FIGS. 10 to 12, the heater 650 includes a substrate 651 (e.g., the substrate 551 in FIG. 8). The substrate 651 includes a first substrate surface 651A (e.g., the first base surface F11 and / or the first flange surface F13 shown in FIG. 8), and a second substrate surface 651B opposite to the first substrate surface 651A (e.g., the second base surface F12 and / or the second flange surface F14 shown in FIG. 8).

[0179] In one embodiment, the substrate 651 includes a thermally conductive material. For example, the substrate 651 may include silicon (Si), silicon dioxide (SiO2), sapphire, polystyrene, polymethyl methacrylate, and / or any other material suitable for heat conduction. In one embodiment, the substrate 651 includes a thermal barrier material. For example, the substrate 651 includes glass.

[0180] In one embodiment, the substrate 651 includes an electrically conductive material. In one embodiment, the substrate 651 includes an electrically insulating material.

[0181] In one embodiment, the substrate 651 has various thermal conductivities. For example, the substrate 651 has 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 at a pressure of 1 bar and a temperature of 25°C.

[0182] In one embodiment, the heater 650 includes a heating element 653. The heating element 653 includes a plurality of metal particles. The plurality of metal particles have a nanoscale size. For example, the plurality of metal particles have an average maximum diameter of about 1 μm or less. In one embodiment, the plurality of metal particles have an average maximum diameter of 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.

[0183] In one embodiment, the plurality of metal particles can be formed of any material suitable for generating heat. For example, the plurality of metal particles 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.

[0184] In one embodiment, the plurality of metal particles may be formed of any material suitable for interacting with light in a determined wavelength band (e.g., the visible light wavelength band, i.e., from about 380 nm to about 780 nm) to generate heat. The plurality of metal particles may include at least one of gold, silver, copper, palladium, or platinum, or a combination thereof.

[0185] In one embodiment, the plurality of metal particles may be formed of a metal material having an average maximum absorbance. The average maximum absorbance is defined as the absorbance of the peak value that varies depending on the wavelength band of light. The wavelength band in which the plurality of metal particles resonate includes the wavelength band that induces the average absorbance. The plurality of metal particles may be formed of a metal material having an average maximum absorbance in a 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 may vary depending on the type of metal, the type of substrate 651, the size and / or shape of the structure (e.g., metal prism) formed by the plurality of metal particles. For example, gold has a maximum absorbance in a wavelength band of about 600 nm to about 650 nm. For example, silver may have a maximum absorbance in a wavelength band of about 420 nm to about 470 nm.

[0186] In one embodiment, the deposition thickness of the plurality of metal particles may be about 10 nm or less. When the plurality of metal particles are deposited on the substrate with a thickness exceeding 10 nm, the exothermic reaction may decrease in the structure (e.g., metal prism) formed by the plurality of metal particles. For those structures formed by the plurality of metal particles with a thickness exceeding 10 nm, the possibility of heat being taken away from the periphery of the heater 650 increases, and thus the thermal efficiency of the heater 650 may be reduced.

[0187] In one embodiment, the heating element 653 includes a metal prism 654 containing a plurality of metal particles. The metal prism 654 may be formed of substantially a single structure. The metal prism 654 includes a plurality of holes H.

[0188] In one embodiment, the metal prism 654 includes a first base surface 654A facing the first substrate surface 651A of the substrate 651, a second base surface 654B opposite to the first base surface 654A, and a plurality of side surfaces 654C1, 654C2 between the first base surface 654A and the second base surface 654B. The first substrate surface 651A and the plurality of side surfaces 654C1, 654C2 define the plurality of holes H.

[0189] In one embodiment, the first base surface 654A and the second base surface 654B may be substantially parallel to each other.

[0190] In one embodiment, the first base surface 654A and / or the second base surface 654B may be formed as substantially flat surfaces.

[0191] In one embodiment, the distance between the first base surface 654A and the second base surface 654B (for example, the thickness of the metal prism 654) may be about 10 nm or less. If the metal prism 654 has a thickness exceeding 10 nm, the heat generation reaction of the plurality of metal particles forming the metal prism 654 is reduced, and as a result, the thermal efficiency of the heater 650 is reduced.

[0192] In one embodiment, the plurality of side surfaces 654C1, 654C2 of the metal prism 654 are directed in different directions. For example, the first side surface 654C1 is directed in a first direction (for example, a first radial direction), and the second side surface 654C2 is directed in a second direction (for example, a second radial direction) substantially opposite to the first direction.

[0193] In one embodiment, at least one of the plurality of side surfaces 654C1 and 654C2 may be formed of a substantially curved surface. In one embodiment, the plurality of side surfaces 654C1 and 654C2 may be formed of curved surfaces having substantially the same curvature. In one embodiment, the curvature of any one of the plurality of side surfaces 654C1 and 654C2 may be different from the curvature of the other side surface.

[0194] In one embodiment, the plurality of side surfaces 654C1 and 654C2 may be formed of 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 of a curved surface that is convex from the center of the metal prism 654.

[0195] In one embodiment, the metal prism 654 may include two side surfaces. For example, the metal prism 654 may have a substantially semi-circular or near semi-circular shape.

[0196] In one embodiment, some of the plurality of holes H may be separated from each other. Some of the holes H may be separated by a part of the metal prism 654. In one embodiment, some of the plurality of holes H may be connected to each other. In this case, two of the metal prisms 654 may not be connected to each other and may be separated by the holes H that are connected to each other.

[0197] In one embodiment, the plurality of holes H have an average maximum diameter D of about 10 nm or more, about 50 nm or more, about 90 nm or more, about 100 nm or more, about 150 nm or more, about 200 nm or more, about 300 nm or more, about 350 nm or more, about 450 nm or more, or about 500 nm or more.

[0198] In one embodiment, the plurality of holes H have an average maximum diameter D of about 1,000 nm or less, about 900 nm or less, about 800 nm or less, about 700 nm or less, about 600 nm or less, or about 550 nm or less.

[0199] FIG. 13 is a diagram showing a heater according to an embodiment.

[0200] Referring to FIG. 13, heater 550-1 (e.g., heater 550 in FIG. 8) includes a substrate 551, an enclosure 552, a cavity 553, and a heating element 554. The substrate 551 includes a base 551A and a flange 551B. The base 551A includes a first base surface F11 and a second base surface F12. The flange 551B includes a first flange surface F13 and a second flange surface F14. The enclosure 552 includes a first enclosure portion 552A and a second enclosure portion 552B. The first enclosure portion 552A includes a first outer enclosure surface F21 and a first inner enclosure surface F22. The second enclosure portion 552B includes a second outer enclosure surface F23 and a second inner enclosure surface F24. In the present embodiment, compared with the embodiment shown in FIG. 8, the heating element 554 may be disposed on the second base surface F12. Alternatively, or additionally, the heating element 554 may be disposed on the first inner enclosure surface F22 and / or the second inner enclosure surface F24.

[0201] FIG. 14 is a diagram showing a heater according to an embodiment.

[0202] Referring to FIG. 14, heater 550-2 (e.g., heater 550 in FIG. 8 and / or heater 550-1 in FIG. 13) includes a substrate 551, an enclosure 552, a cavity 553, and a heating element 554. The substrate 551 includes a base 551A and a flange 551B. The base 551A includes a first base surface F11 and a second base surface F12. The flange 551B includes a first flange surface F13 and a second flange surface F14. The enclosure 552 includes a first enclosure portion 552A and a second enclosure portion 552B. The first enclosure portion 552A includes a first outer enclosure surface F21 and a first inner enclosure surface F22. The second enclosure portion 552B includes a second outer enclosure surface F23 and a second inner enclosure surface F24.

[0203] In this embodiment, when compared with the embodiment of FIG. 8, the heater 550-2 includes a reflector 555. The reflector 555 is configured to reflect the light transmitted through the substrate 551 back to the heating element 554. By improving the light utilization efficiency of the heating element 554, the reflector 555 can enhance the thermal efficiency of the heater 550.

[0204] In one embodiment, the reflector 555 includes a first reflection layer 555A. The first reflection layer 555A may be disposed on the first internal enclosure surface F22.

[0205] In one embodiment, the reflector 555 includes a second reflection layer 555B. The second reflection layer 555B may be disposed on the second internal enclosure surface F24.

[0206] In one embodiment, the first reflection layer 555A and the second reflection layer 555B may be integrally and seamlessly connected. Alternatively, the first reflection layer 555A and the second reflection layer 555B may be separately connected to each other.

[0207] In one embodiment, the reflector 555 can include any material suitable for reflecting light. For example, the reflector 555 may include at least one or a combination of gold, silver, copper, or any other metal material suitable for reflection.

[0208] In one embodiment, the first reflection layer 555A and the second reflection layer 555B have any thickness suitable for reflecting light. The thickness of the first reflection layer 555A and / or the second reflection layer 555B may be determined to a value that substantially induces total internal reflection of light. For example, the thickness of the first reflection layer 555A and the second reflection layer 555B may be about 15 nm or less, about 12 nm or less, about 10 nm or less, about 8 nm or less, or about 5 nm or less.

[0209] The features and aspects of any of the previously described embodiments can be combined with the features and aspects of any other embodiment, as long as no resulting obvious technical conflict occurs.

Claims

1. A heater including a substrate, an enclosure disposed on the substrate, a cavity formed by the substrate and the enclosure and configured to accommodate an aerosol-generating article, and a heating element disposed on the substrate and configured to generate heat by surface plasmon resonance; a condenser configured to concentrate light on the heating element; An aerosol-generating device comprising:

2. The substrate includes a base defining at least a part of the cavity, a flange extending from the base, The aerosol-generating device according to claim 1, comprising:

3. The aerosol-generating device according to claim 1, wherein the substrate and the enclosure comprise an opaque material.

4. The aerosol-generating device according to claim 1, wherein the substrate comprises a thermally conductive material.

5. The aerosol-generating device according to claim 1, wherein the substrate comprises a thermal conduction barrier material.

6. The aerosol-generating device according to claim 1, wherein the heating element comprises a plurality of metal particles applied on an outer surface of the substrate.

7. The aerosol-generating device according to claim 1, wherein the heating element comprises a metal prism including a plurality of metal particles.

8. The aerosol-generating device according to claim 7, wherein the metal prism has a thickness of more than 0 nm and not more than 10 nm.

9. The aerosol-generating device according to claim 1, wherein the heating element comprises a plurality of metal particles applied on one surface of the substrate and an inner surface of the enclosure.

10. The aerosol-generating device according to claim 1, wherein the heater comprises a reflector disposed on an inner surface of the enclosure.

11. The aerosol-generating device according to claim 1, wherein the condenser comprises a convex lens.

12. The aerosol-generating device according to claim 1, further comprising an optical modulator configured to adjust a light-concentrating area of the condenser.

13. The aerosol-generating device according to claim 1, further comprising a light source configured to emit light toward the condenser.

14. The aerosol-generating device according to claim 1, further comprising an interchangeable cartridge including the substrate, the enclosure, and the heating element.

15. A cartridge for an aerosol-generating article, comprising a substrate, an enclosure disposed on the substrate, A cavity formed by the substrate and the enclosure and configured to contain an aerosol-generating article; A heating element disposed on the substrate and configured to generate heat by surface plasmon resonance; A cartridge comprising the above.

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