Aerosol-generating article and aerosol-generating system

Abstract

The present application provides an aerosol generating article and an aerosol generating system; wherein the aerosol generating article comprises: an aerosol generating substrate configured to generate an aerosol when heated; a light-induced heating element combined with or in contact with the aerosol generating substrate and configured to absorb radiant light to generate heat to heat the aerosol generating substrate. The above aerosol generating article can rapidly and relatively uniformly transfer the heat generated by the light-induced heating element absorbing the radiant light to the aerosol generating substrate for heating.

Description

Technical Field

[0001] This application relates to the field of heated non-combustible aerosol generation, and more particularly to an aerosol generation product and an aerosol generation system. Background Technology

[0002] Tobacco products (such as cigarettes, cigars, etc.) produce tobacco smoke by burning tobacco during use. Efforts are being made to replace these tobacco-burning products by creating products that release compounds without combustion.

[0003] Examples of such products are heating devices that release compounds by heating rather than burning materials. For example, the material could be tobacco or other non-tobacco products, which may or may not contain nicotine. Known methods involve inserting an elongated light heater into the tobacco or other non-tobacco product, thereby heating it by radiating light from within. Chinese patent CN218104917U proposes arranging a heat-resistant, thermally conductive layer, such as a tin foil layer or aluminum foil layer, within the tobacco or non-tobacco product to transfer heat between the light heater and the tobacco or other non-tobacco product, thereby improving the heat utilization rate of the light heater. Utility Model Content

[0004] One embodiment of this application provides an aerosol generating article, comprising:

[0005] The aerosol generation matrix is ​​configured to generate aerosols when heated;

[0006] A photothermal element is attached to or in contact with the aerosol-generating matrix and is configured to absorb radiant light to generate heat, thereby heating the aerosol-generating matrix.

[0007] In some embodiments, the photothermal element and the aerosol generating matrix are in direct contact or bonded together, thereby conducting heat to each other.

[0008] In some embodiments, the photothermal element is disposed within the aerosol generating matrix; the photothermal element is tubular, extending axially along the aerosol generating matrix, and surrounds and defines a cavity.

[0009] In some embodiments, the thickness of the photothermal element may be between 0.1 and 2.0 mm.

[0010] In some embodiments, the radiation absorption coefficient of the photothermal element may be between 0.4 and 1.0.

[0011] In some embodiments, the end of the photothermal element near the downstream end of the aerosol-generating article is closed.

[0012] In some embodiments, the thermal conductivity of the photothermal element is between 150 and 1500 W / m·K.

[0013] In some embodiments, the photothermal element includes:

[0014] A thermally conductive substrate layer, and a photothermal layer formed or bonded to the substrate layer;

[0015] The photothermal layer is configured to absorb radiant light and generate heat, and the substrate layer is configured to transfer the heat from the photothermal layer to the aerosol generation matrix.

[0016] In some embodiments, the thermal conductivity of the substrate is between 50 and 500 W / m·K.

[0017] In some embodiments, the radiation absorption coefficient of the photothermal layer may be between 0.4 and 1.0.

[0018] In some embodiments, the substrate layer may include aluminum foil;

[0019] And / or, the photothermal layer includes a graphite film, a graphene film, or an aluminum oxide layer.

[0020] In some embodiments, the photothermal element is a tubular shape extending axially along the aerosol-generating matrix and surrounding and defining a cavity; the photothermal layer defines the inner surface of the cavity.

[0021] Another embodiment of this application also proposes an aerosol generation system, comprising:

[0022] Benefits of the above-mentioned aerosol-generating products; and,

[0023] Heating device, including:

[0024] A chamber for receiving the aerosol-generated product;

[0025] A light source is configured to radiate light onto the photothermal element, thereby causing the photothermal element to absorb the radiated light and generate heat, which in turn heats the aerosol-generating matrix.

[0026] The above aerosol-generated products can be heated by photothermal elements that rapidly and relatively evenly transfer the heat generated by absorbing radiation light to the aerosol-generating matrix. Attached Figure Description

[0027] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0028] Figure 1 This is a schematic diagram of an aerosol-generated article provided in one embodiment;

[0029] Figure 2 yes Figure 1 A schematic diagram of photothermal elements arranged within the aerosol generation matrix;

[0030] Figure 3 yes Figure 1 A schematic diagram of an aerosol-generated article being heated in a heating device according to one embodiment;

[0031] Figure 4 This is a schematic diagram of a photothermal element according to yet another embodiment;

[0032] Figure 5 This is a schematic diagram of an aerosol generation matrix with a photothermal element according to yet another embodiment;

[0033] Figure 6 This is a schematic diagram of an aerosol generation matrix with a photothermal element according to yet another embodiment;

[0034] Figure 7 This is a schematic diagram of an aerosol-generated article according to yet another embodiment. Detailed Implementation

[0035] To facilitate understanding of this application, a more detailed description of this application will be provided below in conjunction with the accompanying drawings and specific embodiments.

[0036] One embodiment of this application proposes a heated aerosol generating article comprising multiple elements assembled in the form of strips, which is capable of generating aerosols when heated.

[0037] For example Figure 1 This is a schematic diagram of an aerosol-generating article 1000 according to one embodiment. Figure 1 As shown, the aerosol generating article 1000 includes an upstream end 1100 and a downstream end 1200 facing away from each other; as used herein, the terms 'upstream' and 'downstream' are used to describe the relative positions of elements or portions of elements of the aerosol generating article 1000 with respect to the direction in which a user draws air from the aerosol generating article 1000 during its use. Downstream can be a direction closer to the user's drawing direction, while upstream is correspondingly a direction away from the user; and, the upstream direction can be the direction in which external air enters the aerosol generating article 1000, and the downstream direction can be the direction in which an airflow containing aerosol exits from the aerosol generating article 1000, for example... Figure 1The direction is indicated by the middle arrow R12. During use, the aerosol generated by heating within the aerosol generating article 1000 passes through the downstream end 1200 and exits from the downstream end 1200 before being delivered to the user. During use, the user can suction from the downstream end 1200 to inhale the aerosol.

[0038] Among them Figure 1 In the illustrated embodiment, for ease of use by typical users, the aerosol generating article 1000 has an overall elongated cylindrical structure. Alternatively, in some other variations, the aerosol generating article 1000 may be an elongated elliptical cylinder, a square prism, a polygonal prism, etc.

[0039] In some embodiments, the aerosol generating article 1000 may mimic the appearance of a conventional, lit, and smokeable cigarette. The aerosol generating article 1000 may have an outer diameter between approximately 5 mm and 12 mm (e.g., between approximately 5 mm and 10 mm). The aerosol generating article 1000 also has an overall length between approximately 40 mm and 100 mm; in alternative embodiments, the aerosol generating article 1000 has an overall length between approximately 45 mm and 55 mm.

[0040] according to Figure 1 As shown, the aerosol generating article 1000 includes multiple components arranged coaxially from the upstream end 1100 to the downstream end 1200:

[0041] The plug 1140, the aerosol generating matrix 1130, the cooling element 1120, and the filter element 1110.

[0042] The plug 1140, aerosol generating matrix 1130, cooling element 1120 and filter element 1110 are arranged sequentially and constrained by an external enclosure 1160 to form an aerosol generating article 1000.

[0043] In one embodiment, the plug 1140 is located upstream of the aerosol generating matrix 1130. In another embodiment, the plug 1140 is adjacent to and defines the upstream end 1100, and is used to block or seal the upstream end 1100 of the aerosol generating article 1000, thereby preventing material of the aerosol generating matrix 1130 or generated aerosol / aerosol condensate from flowing out from the upstream end 1100. In some examples, the plug 1140 is immediately upstream of the aerosol generating matrix 1130. In another embodiment, the plug 1140 is airflow permeable, allowing air to enter from the upstream end 1100 during suction and flow through the plug 1140 to the downstream aerosol generating matrix 1130.

[0044] In some embodiments, the plug 1140 is airflow-permeable, allowing air to pass through the plug 1140 during suction and be delivered to the downstream aerosol-generating matrix 1130. In some embodiments, the plug 1140 may comprise a porous body; the term "porous" is intended to cover materials that are inherently porous as well as generally non-porous materials that become porous or permeable by providing a plurality of pores. The porous material has pores large enough to allow air to pass through and be drawn through the porous body. Because the porous body has a high surface area to volume ratio, the plug 1140 allows for rapid and efficient heating of the air drawn through the porous body. This allows for uniform heating of the air drawn through the porous body, and therefore allows for more uniform heating of the aerosol-generating matrix 1130 downstream of the plug 1140.

[0045] In some embodiments, the plug 1140 is made of a porous material, thereby allowing airflow to pass through. In some embodiments, the plug 1140 is made of porous cellulose acetate bundles, polyacrylic acid fiber bundles, polyethylene terephthalate fiber bundles, or polylactic acid fiber bundles.

[0046] In embodiments, aerosol-generating matrix 1130 is used to describe a matrix capable of releasing volatile compounds upon heating, which can form aerosols. The aerosols described herein can be visible or invisible and can comprise vapors (e.g., fine particles of matter in a gaseous state, which are typically liquid or solid at room temperature) as well as droplets of gas and condensed vapors. Aerosol-generating matrix 1130 can comprise one or more of, for example, powders, granules, pellets, fragments, strands, strips, or sheets, comprising one or more of: dried flowers or leaves, grass leaves, tobacco leaves, tobacco midribs, expanded tobacco, and homogenized tobacco. In alternative embodiments, aerosol-generating matrix 1130 comprises aggregated sheets of wrinkled homogenized tobacco material confined by an outer wrapper 1160; the aggregated sheets of wrinkled homogenized tobacco material comprise glycerol as an aerosol-forming agent.

[0047] exist Figure 1 In the illustrated embodiment, the cooling element 1120 is arranged immediately downstream of and adjacent to the aerosol generating matrix 1130. In use, the cooling element 1120 serves two purposes: firstly, to provide downstream support for the aerosol generating matrix 1130; secondly, volatile substances released from the heated aerosol generating matrix 1130 pass along the cooling element 1120 toward the proximal end 11 of the aerosol generating article, and these volatile substances can be cooled within the cooling element 1120 to form an aerosol inhaled by the user. Figure 1In an alternative embodiment shown, the cooling element 1120 includes a cooling cavity 1121 extending axially along the cooling element 1120. This axially extending cooling cavity 1121 ensures that the airflow through the cooling element 1120 is axially directed without significant radial deviation. The cooling element 1120 can cool the temperature of the aerosol stream drawn through it by means of heat transfer. The components of the aerosol will interact with the space within the cooling element 1120 and lose thermal energy. The cooling element 1120 may comprise ceramic, metal, or organic polymer plastics such as polylactic acid. In some embodiments, the temperature of the aerosol stream may decrease by more than 10 degrees Celsius as it is drawn through the cooling element 1120. In some embodiments, the temperature of the aerosol stream may decrease by more than 25 degrees Celsius or more than 30 degrees Celsius as it is drawn through the cooling element 1120.

[0048] exist Figure 1 In the illustrated embodiment, filter element 1110 is arranged immediately downstream of cooling element 1120 and defines a downstream end 1200, and is adjacent to cooling element 1120 for filtering aerosols before delivery to the user. Figure 2 In the embodiments shown, the filter element 1110 includes a conventional cellulose acetate or polypropylene tow filter tip with low filtration efficiency.

[0049] To assemble the aerosol-generating article 1000, the multiple components described above are aligned and tightly enclosed within the outer enclosure 1160. Figure 1 In the illustrated embodiment, the outer wrapping 1160 is a conventional cigarette paper, fibrous material, organic polymer, etc.

[0050] In some embodiments, the thickness of the outer wrapping 1160 is 0.2 mm to 0.5 mm; more preferably, the thickness of the outer wrapping 1160 is 0.35 mm to 0.45 mm.

[0051] In some embodiments, the axial length of the aerosol generating matrix 1130 may be between 6 and 15 mm.

[0052] according to Figures 1 to 2 As shown, the aerosol generating product 1000 also includes:

[0053] A photothermal element 1150 is arranged within an aerosol generation matrix 1130.

[0054] exist Figure 1 and Figure 2As shown, the photothermal element 1150 is configured as a tubular shape extending axially along the aerosol generating matrix 1130. In an embodiment, the photothermal element 1150 extends substantially axially through the aerosol generating matrix 1130. In an embodiment, the length of the photothermal element 1150 is substantially equal to the length of the aerosol generating matrix 1130. Alternatively, in some variations, the length of the photothermal element 1150 may be less than the length of the aerosol generating matrix 1130.

[0055] In one embodiment, a cavity 1151 is surrounded and defined within the photothermal element 1150. In another embodiment, the cavity 1151 is a through-hole extending through the photothermal element 1150 and / or the aerosol generation matrix 1130. In another embodiment, the cavity 1151 is arranged along the central axis of the aerosol generation matrix 1130. In another embodiment, the cross-section of the cavity 1151 is substantially circular. In some embodiments, the inner diameter of the photothermal element 1150 and / or the cavity 1151 may be between 2 and 5 mm.

[0056] In this embodiment, the photothermal element 1150 can efficiently absorb light radiated from the light source and convert it into heat, thereby heating the aerosol generating matrix 1130 to generate an aerosol. In this embodiment, the photothermal element 1150 is made of a material with a high radiation absorption coefficient, so that the photothermal element 1150 can generate heat by absorbing light during use.

[0057] In this embodiment, "radiative absorption coefficient" is a term used in materials science, optics, and thermodynamics to characterize the ability to absorb radiant light, such as sunlight. It is defined as the ratio of the radiant light absorbed by a material's surface to the radiant light projected onto its surface. In this embodiment, the "radiative absorption coefficient" can be used to measure a material's performance in absorbing and utilizing light energy; more specifically, when radiant light propagates through a material, the material absorbs some of the energy of the radiant light and converts it into heat energy. Generally, the larger the radiative absorption coefficient, the stronger the material's ability to absorb light radiation. Furthermore, the "radiative absorption coefficient" can be measured using the testing method specified in the standard GB / T 30592-2014.

[0058] In this embodiment, the radiation absorption coefficient of the photothermal element 1150 is between 0.4 and 1.0. More preferably, the radiation absorption coefficient of the photothermal element 1150 is between 0.5 and 1.0. More preferably, the radiation absorption coefficient of the photothermal element 1150 is between 0.9 and 1.0.

[0059] In embodiments, the photothermal element 1150 may be entirely or partially made of a material with a relatively high radiation absorption coefficient, such as a photothermal material. For example, in some embodiments, the photothermal element 1150 may be made of at least one of carbon-based photothermal materials, such as graphite, graphene, graphene oxide (GO), reduced graphene oxide (rGO), carbon nanotubes, and carbon black. Or in other embodiments, the photothermal element 1150 may be made of inorganic photothermal materials; for example, the photothermal element 1150 may be made of inorganic metal oxide semiconductor materials including Ti2O3 nanoparticles, black TiO2, alumina Al2O3, MoO3 quantum dots, and Fe3O4. Or in yet other embodiments, the photothermal element 1150 may be made of organic photothermal materials such as phthalonitrile and diphenylamine, indocyanine green, Prussian blue, and thiadiazole derivatives.

[0060] In some embodiments, the thermal conductivity of the photothermal element 1150 prepared from the above materials is between 150 and 1500 W / m·K. In use, it is advantageous to transfer the heat generated by absorbing radiant light to the aerosol-generating matrix 1130 for heating in a relatively uniform or rapid manner.

[0061] In some embodiments, the photothermal element 1150 may comprise only materials with relatively high radiation absorption coefficients. Alternatively, the photothermal element 1150 may be entirely made of materials with relatively high radiation absorption coefficients.

[0062] In some embodiments, the thickness of the tubular photothermal element 1150 may be between 0.1 and 2.0 mm; more preferably, the thickness of the tubular photothermal element 1150 may be between 0.6 and 1.5 mm.

[0063] For example Figure 3 It shows Figure 1 A schematic diagram of an aerosol-generating article 1000 being heated within a heating apparatus according to one embodiment; Figure 3 As shown, the heating device may include:

[0064] The chamber has an opening 40; in use, the aerosol-generating article 1000 can be removably received in the chamber through the opening 40.

[0065] The light source 30, which extends at least partially within the chamber, can be inserted into the cavity 1151 of the photothermal element 1150 to emit light when the aerosol generating article 1000 is received within the chamber. This causes the photothermal element 1150 to absorb the light emitted by the light source 30 to generate heat, which in turn heats the aerosol generating matrix 1130 to release a variety of volatile compounds. These volatile compounds are formed solely through heat treatment.

[0066] Cell 10 is used for power supply;

[0067] The circuit board 20, such as a PCB board or FPC board, has integrated or arranged circuits; the circuits are used to guide current between the battery cell 10 and the light source 30.

[0068] In this embodiment, the light source 30 radiates light to the photothermal element 1150, thereby causing the photothermal element 1150 to generate heat, which in turn heats the aerosol generating matrix 1130 to a temperature above the minimum heating temperature for aerosol generation, thereby generating an aerosol that can be inhaled by the user.

[0069] exist Figure 6 In the illustrated embodiment, the light source 30 is generally shaped like a pin, needle, rod, column, sheet, or plate. When the aerosol generating article 1000 is received in the chamber, the light source 30 passes through the plug 1140 from the upstream end 1100 of the aerosol generating article 1000 and is inserted into the cavity 1151 of the photothermal element 1150 to emit light, thereby heating the photothermal element 1150 to generate aerosol. In some embodiments, the light source 30 may have a length of approximately 10 to 18 mm and an outer diameter of approximately 2 to 4 mm.

[0070] In this embodiment, the plug 1140 can be punctured or penetrated by the light source 30.

[0071] In this embodiment, when the aerosol generating article 1000 is received in the heating device, the light source 30 is inserted into the cavity 1151 of the photothermal element 1150. In use, the aerosol generating matrix 1130 is heated by the photothermal element 1150 to generate aerosol, which is then output downstream.

[0072] exist Figure 3 In the illustrated embodiment, the light source 30 is approximately a line light source. Figure 3 In the embodiment shown, the light source 30 is configured as an elongated lamp tube.

[0073] exist Figure 3 In the illustrated embodiment, the light source 30 includes:

[0074] Housing 31 defines at least a portion of the outer surface of the light source 30;

[0075] The light-emitting element 32 is located inside the housing 31 and is used to emit light.

[0076] In some embodiments, the light source 30 is a halogen tungsten lamp, a xenon lamp, or the like. Or in yet other embodiments, the light source 30 is an incandescent lamp.

[0077] exist Figure 3As shown, the housing 31 is configured to have a pin, needle, column, or rod-like shape. In this embodiment, the housing 31 is hollow to encapsulate the light-emitting element 32.

[0078] In some embodiments, the outer casing 31 is closed or sealed. In some embodiments, the outer casing 31 may be made of a high-temperature resistant and light-transmitting material such as quartz, glass, ceramic, or mica; preferably, it is a transparent material. For example, the outer casing 31 made of quartz glass or borosilicate glass has a transmittance of more than 90% for the light emitted by the light-emitting element 32; in a more preferred embodiment, the outer casing 31 made of high-purity quartz has a transmittance of more than 95% for the light emitted by the light-emitting element 32.

[0079] In some embodiments, the light source 30 is a halogen tungsten lamp; in other embodiments, the housing 31 is filled with halogen, such as iodine vapor. In some specific embodiments, the housing 31 is sealed with a 1×10 -6 ~1×10 -2 μmol / mm 3 Halogen. Or in some embodiments, the housing 31 is filled with an inert gas, such as argon or helium.

[0080] In some embodiments, the light source 30 is a xenon lamp tube, which can have a higher color temperature; in some embodiments, the housing 31 is filled with xenon.

[0081] In some embodiments, the housing 31 has an outer diameter of approximately 2.0 to 4.0 mm and a wall thickness of approximately 0.3 to 0.8 mm; the inner diameter of the housing 31 is approximately 1.0 to 3.2 mm. In one specific embodiment, the housing 31 has an outer diameter of approximately 2.5 mm and a wall thickness of approximately 0.6 mm.

[0082] exist Figure 3 As shown, the light-emitting element 32 is arranged in the form of a solenoid coil. In some embodiments, the wire material of the light-emitting element 32 may include tungsten wire, molybdenum wire, carbon fiber wire or tin oxide wire, stainless steel wire, nickel-chromium alloy wire, etc. In a specific embodiment, the light-emitting element 32 is a tungsten wire; or, the light-emitting element 32 is made of tungsten wire with a purity of 99% or higher.

[0083] In some embodiments, the light-emitting element 32 is powered by the circuit board 20 and heats up through resistive Joule heating, emitting light at an operating temperature of 300–800°C. More preferably, the light-emitting element 32 emits light at an operating temperature of 300–550°C. In some embodiments, the wavelength range of the light emitted by the light-emitting element 32 is in the range of 200 nm–3500 nm. The light emitted by the light-emitting element 32 is primarily infrared light.

[0084] In some embodiments, the circuitry on the circuit board 20 is configured to supply power to the light source 30 at a power of 10W to 12W, thereby enabling the light intensity of the light source 30 to heat the aerosol generating matrix 1130 from room temperature to generate aerosols within 3s to 5s.

[0085] In some embodiments, when the aerosol generating article 1000 is received in the heating device, the light source 30 is inserted into the cavity 1151 of the photothermal element 1150, and there is a gap between it and the inner surface of the photothermal element 1150, thus it is non-contact. In some embodiments, when the aerosol generating article 1000 is received in the heating device, the light source 30 is inserted into the cavity 1151 of the photothermal element 1150, and there is a gap of 0.1 to 1.0 mm between it and the inner surface of the photothermal element 1150. Therefore, in use, on the one hand, heat transfer through contact between the photothermal element 1150 and the light source 30 can be reduced, and on the other hand, the problem of impurities such as tobacco and tar adhering to and contaminating the light source 30, affecting the heating efficiency and flavor of the food, which is present in center-contact heating, can be solved.

[0086] Or for example Figure 4 The diagram shows a schematic of a photothermal element 1150a according to another embodiment. The photothermal element 1150a of this embodiment may include a thermally conductive substrate layer 1152a and a photothermal layer 1153a formed on the substrate layer 1152a by processes such as spraying, deposition, anodizing, and carbon coating.

[0087] In some embodiments, the thermally conductive substrate 1152a may be made of a thermally conductive metal or alloy material. In some embodiments, the thermally conductive substrate 1152a may include foils of relatively high thermal conductivity metals or alloys such as aluminum foil, copper foil, tin foil, gold foil, silver foil, and stainless steel foil. In some embodiments, the thermal conductivity of the substrate 1152a may be between 50 and 500 W / m·K.

[0088] In some embodiments, the photothermal layer 1153a may include a material having the aforementioned relatively high radiation absorption coefficient. In embodiments, the radiation absorption coefficient of the photothermal layer 1153a may be between 0.4 and 1.0.

[0089] In an embodiment, for the tubular photothermal element 1150a, there is a thermally conductive substrate layer 1152a and a photothermal layer 1153a located outside the substrate layer 1152a. In some embodiments, the photothermal layer 1153a is disposed on or defines the inner surface of the photothermal element 1150a; and the thermally conductive substrate layer 1152a is disposed on or defines the outer surface of the photothermal element 1150a.

[0090] In one embodiment, the photothermal layer 1153a is located inside the photothermal element 1150a and is used to absorb light radiated by the light source inserted into the cavity 1151a to generate heat. In another embodiment, the aerosol generation matrix 1130 surrounds and is bonded to the thermally conductive substrate layer 1152a of the photothermal element 1150a from the outside, thereby transferring the heat generated by the photothermal layer 1153a to the aerosol generation matrix 1130 to heat the aerosol generation matrix 1130.

[0091] In some specific embodiments, the thermally conductive substrate 1152a is an aluminum foil, and the photothermal layer 1153a is a graphite film or a graphene film.

[0092] Alternatively, in another specific embodiment, the thermally conductive substrate 1152a is an aluminum foil, and the photothermal layer 1153a is a black aluminum oxide layer formed by anodizing a portion of the surface of the substrate 1152a.

[0093] exist Figure 4 In the illustrated embodiment, the downstream end of the photothermal element 1150a and / or cavity 1151a is closed; specifically, the downstream end of the photothermal element 1150a and / or cavity 1151a is closed by end wall 1154a.

[0094] In some embodiments, the end wall 1154a is integrally formed with the substrate layer 1152a; or, the end wall 1154a is formed from a portion of the material of the substrate layer 1152a. For example, in some embodiments, a portion of the foil material is stamped to form the end wall 1154a by stamping a foil material of a ductile metal or alloy, and another portion is extended along the stamping direction to form a tubular substrate layer 1152a.

[0095] Alternatively, in some other embodiments, the end wall 1154a is integrally formed with the photothermal layer 1153a; or, the end wall 1154a is formed from a portion of the material of the photothermal layer 1153a.

[0096] In some other embodiments, the aerosol generating matrix 1130 can also be configured as a non-cylindrical shape; for example, the aerosol generating matrix 1130 can also be configured as a triangular prism, square prism, pentagonal prism, polygonal prism, etc. In the aerosol generating article 1000, multiple air channels surrounding the aerosol generating matrix 1130 can be formed or defined between the aerosol generating matrix 1130 and the outer wrapping 1160, which is advantageous for reducing suction resistance and improving the uniform output of aerosols.

[0097] For example Figure 5The diagram shows a schematic of a pentagonal prism-shaped aerosol generating matrix 1130b in another embodiment, within which a photothermal element 1150b may be arranged. For example... Figure 6 A schematic diagram of another embodiment of the aerosol generation matrix 1130c is shown. Figure 6 The aerosol generating matrix 1130c has a plurality of circumferentially spaced protrusions 1131c, which are radially arranged on the outside of the aerosol generating matrix 1130c; and the protrusions 1131c are tapered in shape with gradually decreasing width; and the gaps between adjacent protrusions 1131c can form or define an air channel between the aerosol generating matrix 1130c and the outer wrapping 1160.

[0098] Alternatively, in some other variations, the photothermal element 1150 and / or cavity 1151a may also be configured in the shape of a triangular prism, a square prism, a pentagonal prism, a multi-prism, etc., which is advantageous for light sources 30 adapted to the shape of triangular prisms, square prisms, pentagonal prisms, multi-prisms, etc.

[0099] or Figure 7 A schematic diagram of another embodiment of an aerosol-generated article 1000d is shown; in Figure 7 As shown, the aerosol generating article 1000d includes multiple components coaxially arranged from the upstream end 1100d to the downstream end 1200d: a plug 1140d, an aerosol generating matrix 1130d, a cooling element 1120d, and a filter element 1110d. And in Figure 7 In the middle, the cooling element 1120d and the filter element 1110d are wrapped and confined from the outside by the outer wrapping 1160d.

[0100] exist Figure 7 In the illustrated embodiment, the aerosol-generating article 1000d further includes:

[0101] The photothermal element 1150d is located outside the aerosol generation matrix 1130d and surrounds and encloses the aerosol generation matrix 1130d from the outside. The photothermal element 1150d can absorb light and convert it into heat, thereby heating the aerosol generation matrix 1130d from the outside.

[0102] exist Figure 7 In the illustrated embodiment, the outer surface of the photothermal element 1150d is exposed, so that the photothermal element 1150d can be heated by radiating light to the outer surface of the photothermal element 1150d during use.

[0103] In one embodiment, the photothermal element 1150d at least partially defines the outer surface of the aerosol-generating article 1000d; Figure 7As shown, the outer surface of the aerosol-generating article 1000d is defined by the photothermal element 1150d and the outer wrapping 1160d. In this embodiment, the outer surface of the photothermal element 1150d is capable of absorbing radiant light and thus generating heat.

[0104] It should be noted that the preferred embodiments of this application are given in the specification and accompanying drawings, but are not limited to the embodiments described in this specification. Furthermore, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. An aerosol-generating product, characterized in that, include: The aerosol generation matrix is ​​configured to generate aerosols when heated; A photothermal element is attached to or in contact with the aerosol-generating matrix and is configured to absorb radiant light to generate heat, thereby heating the aerosol-generating matrix.

2. The aerosol-generating product as described in claim 1, characterized in that, The photothermal element and the aerosol generating matrix are in direct contact or bonded together, thus conducting heat to each other.

3. The aerosol-generating product as described in claim 1 or 2, characterized in that, The photothermal element is arranged within the aerosol generating matrix; the photothermal element is a tubular shape extending axially along the aerosol generating matrix and surrounding and defining a cavity.

4. The aerosol-generating product as described in claim 3, characterized in that, The thickness of the photothermal element can be between 0.1 and 2.0 mm.

5. The aerosol-generating product as described in claim 3, characterized in that, The radiation absorption coefficient of the photothermal element can be between 0.4 and 1.

0.

6. The aerosol-generating product as described in claim 3, characterized in that, The end of the photothermal element near the downstream end of the aerosol-generating article is closed.

7. The aerosol-generating article as described in claim 1 or 2, characterized in that, The thermal conductivity of the photothermal element is between 150 and 1500 W / m·K.

8. The aerosol-generating article as described in claim 1 or 2, characterized in that, The photothermal element includes: A thermally conductive substrate layer, and a photothermal layer formed or bonded to the substrate layer; The photothermal layer is configured to absorb radiant light and generate heat, and the substrate layer is configured to transfer the heat from the photothermal layer to the aerosol generation matrix.

9. The aerosol-generating article as described in claim 8, characterized in that, The thermal conductivity of the substrate is between 50 and 500 W / m·K.

10. The aerosol-generating article as described in claim 8, characterized in that, The radiation absorption coefficient of the photothermal layer can be between 0.4 and 1.

0.

11. The aerosol-generating article as described in claim 8, characterized in that, The substrate layer may include or be aluminum foil; And / or, the photothermal layer comprises a graphite film or a graphene film.

12. The aerosol-generating article as described in claim 8, characterized in that, The photothermal element is a tubular shape extending axially along the aerosol generating matrix and surrounding and defining a cavity; the photothermal layer defines the inner surface of the cavity.

13. An aerosol generation system, characterized in that, include: The aerosol-generating article according to any one of claims 1 to 12; as well as, Heating device, including: A chamber for receiving the aerosol-generated product; A light source is configured to radiate light onto the photothermal element, thereby causing the photothermal element to absorb the radiated light and generate heat, which in turn heats the aerosol-generating matrix.

Images