Heating device, aerosol generating system, and light heater for heating device

Abstract

The present application provides a heating device, an aerosol generating system, and a light heater for a heating device. The heating device is configured to heat an aerosol generating product to generate an aerosol, and comprises: a receiving cavity used for receiving the aerosol generating product; and a light heater used for emitting light to irradiate the aerosol generating product, so that the aerosol generating product is heated by light to generate an aerosol, wherein when the aerosol generating product is received in the receiving cavity, the light heater does not contact the aerosol generating product. According to the heating device, under the condition that the light heater does not contact the aerosol generating product for heat conduction, the light heater emits light to heat the aerosol generating product.

Description

Heating device, aerosol generating system and light heater for heating device

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to a Chinese patent application filed on November 21, 2023, with application number 202323153260.6, entitled “Heating device, aerosol generating system and light heater for heating device”, and claims priority to a Chinese patent application filed on December 21, 2023, with application number 202311778737.1, entitled “Heating device, aerosol generating system and light heater for heating device”, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The embodiments of the present application relate to the technical field of heat-not-burn aerosol generation, and in particular to a heating device, an aerosol generating system, and a light heater for the heating device. Background Art

[0004] Smoking articles (eg, cigarettes, cigars, etc.) burn tobacco during use to produce tobacco smoke. Attempts have been made to replace these tobacco-burning articles by creating products that release compounds without combustion.

[0005] Examples of such products are heating devices, which release compounds by heating rather than burning a material. For example, the material can be tobacco or other non-tobacco products, which may or may not contain nicotine. Known heating devices heat tobacco or other non-tobacco products by contact heating at temperatures of approximately 250°C to 500°C. Summary of the Invention

[0006] One embodiment of the present application provides a heating device configured to heat an aerosol-generating article to generate an aerosol; comprising:

[0007] a receiving chamber for receiving the aerosol-generating article;

[0008] The optical heater is used to emit light to irradiate the aerosol-generating product, thereby heating the aerosol-generating product by light to generate aerosol; when the aerosol-generating product is received in the receiving cavity, the optical heater is in non-contact with the aerosol-generating product.

[0009] In some embodiments, the light heater is configured to be substantially a point light source, a line light source, or a surface light source;

[0010] And / or, the light heater is configured substantially in the form of a light bulb, a light tube or a light panel.

[0011] In some embodiments, the light heater is spaced apart from the receiving cavity along the longitudinal direction of the receiving cavity; when the aerosol generating product is received in the receiving cavity, there is a first distance between the light heater and the receiving cavity, thereby making the light heater non-contact with the aerosol generating product.

[0012] In some embodiments, the first spacing is 2 to 10 mm.

[0013] In some embodiments, further comprising:

[0014] an airflow channel defining a passage path for air to pass through the optical heater and into the aerosol-generating article;

[0015] The optical heater is at least partially exposed to the air flow channel;

[0016] and / or, the optical heater is located upstream of the aerosol-generating article;

[0017] And / or, during inhalation, air flows through at least a portion of the surface of the light heater to partially absorb heat from the surface of the light heater and is heated before being output to the aerosol generating article.

[0018] In some embodiments, the optical heater comprises:

[0019] A light-transmitting cover surrounding or defining a sealed cavity;

[0020] The light emitting element is used for emitting light; the light emitting element is located in the cavity and is arranged in a non-contact manner with the light-transmitting cover.

[0021] Alternatively, in an embodiment, the optical heater comprises:

[0022] A light-transmitting cover surrounding or defining a sealed cavity;

[0023] The light emitting element is used for emitting light; the light emitting element is located in the cavity and is arranged in contact with the light-transmitting cover.

[0024] In some embodiments, the light emitting element is an electroluminescent element.

[0025] In some embodiments, further comprising:

[0026] Battery cells, used for power supply;

[0027] The control circuit is used to control the battery cell to provide power to the light-emitting element, so that the light-emitting element emits light at an operating temperature of 450 to 2800°C.

[0028] In some embodiments, the light emitting element has an operating power of approximately 20 to 60 W;

[0029] And / or, the light emitting element has a resistance value of 0.1Ω to 0.6Ω at an operating temperature of 450 to 2800°C;

[0030] And / or, the proportion of light with a wavelength of 800 nm to 1300 nm in the light emitted by the light-emitting element is greater than 60% of the total light.

[0031] In some embodiments, the light emitting element includes tungsten, carbon fiber, or an oxide of at least one metal element.

[0032] In some embodiments, a halogen is enclosed in the cavity;

[0033] and / or, 1×10-6 to 1×10-2 μmol / mm3 of halogen is sealed in the cavity;

[0034] and / or, the cavity is filled with an inert gas;

[0035] and / or, the cavity has a vacuum degree;

[0036] And / or, the pressure in the cavity is less than 0.85 atm.

[0037] In some embodiments, the light-transmitting cover has a transmittance of 90% or more to the light emitted by the light-emitting element;

[0038] And / or, the light-transmitting cover comprises at least one of quartz, glass, ceramic or mica;

[0039] And / or, at least one or more collimating lenses are defined on the light-transmitting cover;

[0040] And / or, at least one protruding structure is arranged on the light-transmitting cover;

[0041] And / or, at least one heat dissipation portion is arranged on the light-transmitting cover for dissipating heat;

[0042] And / or, the light-transmitting cover is configured to be substantially spherical.

[0043] In some embodiments, the light-transmissive cover comprises a first portion and a second portion; when the aerosol-generating article is received in the receiving cavity, the first portion faces or is adjacent to the aerosol-generating article, and the second portion faces away from the aerosol-generating article.

[0044] In some embodiments, the first portion and the second portion are both curved or arcuate structures and have opposite bending directions;

[0045] and / or, the curvature of the first portion is greater than the curvature of the second portion;

[0046] And / or, the surface of the first part is smooth, and at least one raised heat dissipation portion is arranged on the surface of the second part.

[0047] In some embodiments, the light-transmitting cover includes a first portion and a second portion;

[0048] The light emitting element is located in the first portion and avoids the second portion;

[0049] The heating device supports the optical heater by holding the second portion.

[0050] In some embodiments, the light emitting element is configured in the form of a solenoid coil;

[0051] And / or, the light emitting element has 3 to 8 windings;

[0052] and / or, the light emitting element has a length of 2 to 5 mm;

[0053] and / or, the wire material of the light emitting element has a diameter of approximately 0.05 to 0.4 mm;

[0054] and / or, the light emitting element is wound with tungsten wire having a purity of 99% or more;

[0055] And / or, the axis of the light emitting element is perpendicular to the longitudinal direction of the aerosol-generating article or the receiving cavity.

[0056] In some embodiments, the light emitting element is configured in the form of a planar spiral coil;

[0057] and / or, the light emitting element is substantially planar;

[0058] And / or, the light emitting element includes a flat substrate, and a light emitting track or a light emitting coating formed on the substrate;

[0059] And / or, the diameter of the light-emitting element is 4 to 10 mm.

[0060] In some embodiments, further comprising:

[0061] A light guide is disposed around at least a portion of the light heater for directing a portion of the light emitted by the light heater toward an outer surface of the aerosol-generating article.

[0062] In some embodiments, part of the light emitted by the light heater is irradiated onto the upstream end of the aerosol, and another part is guided to the outer surface of the aerosol-generating article via the light guide.

[0063] In some embodiments, the light guide is reflective;

[0064] And / or, the light guide is configured to guide part of the light emitted by the light heater to the outer surface of the aerosol-generating article by reflecting it at least once.

[0065] In some embodiments, the light guide comprises a first light guiding portion surrounding the light heater, and a second portion extending from the first light guiding portion toward the receiving cavity or the aerosol-generating article.

[0066] In some embodiments, the first light guiding segment has an approximately parabolic cross-sectional shape;

[0067] and / or, the optical heater is located at or near a focus of a parabolic cross section of the first light guiding portion;

[0068] And / or, the first light guiding segment has an approximately conical shape.

[0069] In some embodiments, further comprising:

[0070] Battery cells, used for power supply;

[0071] A circuit board, used for controlling the battery core to provide power to the light heater;

[0072] An electronic chamber accommodates the battery core and the circuit board; the electronic chamber is optically isolated from the light heater to prevent the light emitted by the light heater from irradiating the battery core and / or the circuit board.

[0073] In some embodiments, the optical heater further comprises:

[0074] A conductive lead is electrically connected to the light emitting element for guiding current on the light emitting element; the conductive lead at least partially passes through the cavity to the outside of the light-transmitting cover;

[0075] The sealing material is arranged between the conductive lead and the light-transmitting cover to provide a seal therebetween.

[0076] In some embodiments, the sealing material comprises a metal that can withstand temperatures of at least 800°C;

[0077] And / or, the sealing material includes molybdenum, titanium or an alloy containing them.

[0078] In some embodiments, the light heater and / or the light-transmitting cover are configured as a pin or column or rod or stick extending at least partially within the receiving cavity; when the aerosol-generating article is received in the receiving cavity, the light heater and / or the light-transmitting cover are used to extend into the central hole of the aerosol-generating article so that the light-emitting element overlaps with the aerosol-generating article in the radial direction.

[0079] In some embodiments, the light emitting element is located outside the receiving cavity;

[0080] The light-transmitting cover has an extension portion that at least partially extends into the receiving cavity; when the aerosol-generating article is received in the receiving cavity, the extension portion extends into the central hole of the aerosol-generating article to guide a portion of the light emitted by the light-emitting element to the inner surface of the aerosol-generating article.

[0081] In some embodiments, the light heater includes at least two light emitting elements that are optically isolated from each other.

[0082] In some embodiments, the light heater includes a plurality of light emitting elements arranged discretely or in an array;

[0083] The plurality of light-emitting elements are configured to emit light independently or sequentially to heat different portions of the aerosol-generating article independently or sequentially.

[0084] Yet another embodiment of the present application further provides an aerosol generating system, comprising:

[0085] aerosol-generating articles; and

[0086] The heating device described above.

[0087] Yet another embodiment of the present application further provides a light heater for a heating device, comprising:

[0088] A light-transmitting cover surrounding or defining a sealed cavity;

[0089] The light emitting element is used for emitting light; the light emitting element is located in the cavity and is arranged in a non-contact manner with the light-transmitting cover.

[0090] Yet another embodiment of the present application further provides an aerosol generating system, comprising:

[0091] a liquid storage chamber for storing a liquid aerosol-generating matrix;

[0092] A light heater is used to generate aerosol by heating a liquid aerosol-generating substrate through light.

[0093] The above heating device heats the aerosol generating product by emitting light without any contact between the light heater and the aerosol generating product. BRIEF DESCRIPTION OF THE DRAWINGS

[0094] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings. These exemplifications do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0095] FIG1 is a schematic diagram of an aerosol generating system provided by one embodiment;

[0096] FIG2 is a cross-sectional schematic diagram of the optical heater in FIG1 from one viewing angle;

[0097] FIG3 is a schematic diagram of an aerosol generating system according to another embodiment;

[0098] FIG4 is a cross-sectional schematic diagram of the optical heater in FIG3 from one viewing angle;

[0099] FIG5 is a structural schematic diagram of the optical heater in FIG3 from another perspective;

[0100] FIG6 is a schematic diagram of an aerosol generating system according to another embodiment;

[0101] FIG7 is a schematic diagram of an aerosol generating system according to another embodiment;

[0102] FIG8 is a cross-sectional schematic diagram of a light heater according to another embodiment from one perspective;

[0103] FIG9 is a structural schematic diagram of the optical heater in FIG8 from another perspective;

[0104] FIG10 is a schematic diagram of an aerosol generating system according to an embodiment;

[0105] FIG11 is a schematic diagram of a heating device according to another embodiment;

[0106] FIG12 is a schematic diagram of an aerosol-generating article according to yet another embodiment;

[0107] FIG13 is a schematic diagram of an aerosol generating system comprising the aerosol-generating article of FIG12 and the heating device of FIG11;

[0108] FIG14 is a cross-sectional schematic diagram of the optical heater in FIG11 from one perspective;

[0109] FIG15 is a cross-sectional schematic diagram of a light heater according to another embodiment;

[0110] FIG16 is a cross-sectional schematic diagram of a light heater according to another embodiment;

[0111] FIG17 is a cross-sectional schematic diagram of a light heater according to another embodiment;

[0112] FIG18 is a cross-sectional schematic diagram of a light heater according to another embodiment;

[0113] FIG19 is a cross-sectional schematic diagram of a light heater according to another embodiment;

[0114] FIG20 is a cross-sectional schematic diagram of a light heater according to another embodiment;

[0115] FIG21 is a schematic diagram of an aerosol generating system according to yet another embodiment;

[0116] FIG22 is a schematic diagram of a heating device according to another embodiment;

[0117] FIG23 is a schematic diagram of an aerosol-generating article according to yet another embodiment, from one perspective;

[0118] FIG24 is a schematic diagram of the aerosol-generating article in FIG23 from another perspective;

[0119] FIG25 is a schematic diagram of an aerosol-generating system comprising the aerosol-generating article of FIG23 and the heating device of FIG22;

[0120] FIG26 is a schematic diagram of a heating device according to another embodiment;

[0121] FIG27 is a schematic diagram of a spectrum of infrared light radiated by a light heater measured in one embodiment;

[0122] FIG28 is a schematic diagram showing an infrared absorption spectrum of an aerosol-generating substrate heated by a light heater, obtained in one embodiment. DETAILED DESCRIPTION

[0123] In order to facilitate the understanding of the present application, the present application is described in more detail below with reference to the accompanying drawings and specific implementation methods.

[0124] One embodiment of the present application provides an aerosol-generating system for generating an aerosol. In some embodiments, the aerosol-generating system includes an aerosol-generating article and a heating device for heating the aerosol-generating article to generate an aerosol. The aerosol-generating article can generate an aerosol by being heated.

[0125] FIG1 shows a schematic diagram of an aerosol generating system according to an embodiment; in this embodiment, the aerosol generating system comprises:

[0126] An aerosol-generating article 1000 includes an aerosol-generating substrate that generates an aerosol when heated;

[0127] The heating device 100 is used to receive the aerosol-generating article 100 and heat it to generate an aerosol for inhalation by a user.

[0128] In some embodiments, the aerosol-generating article 1000 has an overall appearance of an elongated cylindrical structure, for example, a cylindrical shape similar to a cigarette. Alternatively, in some alternative embodiments, the aerosol-generating article 1000 may be in the shape of an elongated elliptical cylinder, a square cylinder, a polygonal cylinder, etc. In some embodiments, the appearance of the aerosol-generating article 1000 may mimic the appearance of a conventional smokable cigarette. The aerosol-generating article 1000 may have an outer diameter of approximately 5 mm to 12 mm (e.g., approximately 5 mm to 10 mm). The aerosol-generating article 1000 may have a total length of approximately 40 mm to 100 mm. In an alternative embodiment, the aerosol-generating article 1000 may have a total length of approximately 45 mm to 55 mm.

[0129] In some embodiments, the aerosol-generating article 1000 includes an aerosol-generating substrate; an aerosol-generating substrate is used to describe a matrix that releases volatile compounds upon heating, which volatile compounds can form an aerosol. Aerosols, as described herein, can be visible or invisible and can include vapors (e.g., fine particles of a substance that is typically liquid or solid at room temperature, in a gaseous state) as well as droplets of gas and condensed vapor. The aerosol-generating substrate can include, for example, one or more of a powder, granules, pellets, shreds, strands, ribbons, or flakes comprising one or more of dried flowers or fragrant leaves, grass leaves, tobacco leaves, tobacco main veins, expanded tobacco, and homogenized tobacco.

[0130] In some embodiments, the aerosol-generating article 1000 may further include a filter mouthpiece for filtering and delivering the aerosol; the filter mouthpiece may typically comprise a porous material such as cellulose acetate. In some embodiments, when the aerosol-generating article 1000 is heated within the heating device 100, the filter mouthpiece is exposed outside the heating device 100, thereby facilitating inhalation by the user.

[0131] As shown in FIG1 , the heating device 100 includes:

[0132] The housing 10 has a proximal end 110 and a distal end 120 facing each other; the proximal end 110 is provided with a receiving opening 111, through which the aerosol-generating article 1000 can be received into or removed from the heating device 100 during use;

[0133] Battery cell 140, for power supply;

[0134] The circuit board 130 , such as a PCB board, is electrically connected to the battery cell 140 ; ​​the circuit board 130 is provided with a control circuit for controlling the heating of the aerosol-generating article 1000 .

[0135] As shown in FIG1 , the heating device 100 further includes:

[0136] The support 20 surrounds or defines a receiving cavity 211 for receiving the aerosol-generating article 1000;

[0137] The optical heater 30 is electrically connected to the circuit board 130, and the circuit board 130 can control the power of the battery cell 140 to be provided to the optical heater 30; when the circuit board 130 provides power, the optical heater 30 can radiate light to the aerosol generating article 1000 to heat the aerosol generating article 1000 by light.

[0138] As shown in Figure 1, a stopping structure 22 is also arranged in the heating device 100, such as a protrusion or abutting step arranged on the inner wall of the bracket 20; when the aerosol generating product 1000 is received in the receiving cavity 211 and / or in the bracket 20, the aerosol generating product 1000 is stopped by abutting against the stopping structure 22.

[0139] As shown in FIG1 , the diameter of the receiving cavity 211 is larger than the diameter of the aerosol-generating article 1000. When the aerosol-generating article 1000 is received in the receiving cavity 211, there is a gap between the aerosol-generating article 1000 and the inner surface of the holder 20 in the radial direction. In some embodiments, there is a gap of approximately 1 to 5 mm between the aerosol-generating article 1000 and the inner surface of the holder 20 in the radial direction of the receiving cavity 211. As shown in FIG1 , a blocking or sealing element 21, such as an O-ring, is disposed within the holder 20 near the receiving opening 111. When the aerosol-generating article 1000 is received in the receiving cavity 211, the sealing element 21 elastically abuts between the aerosol-generating article 1000 and the inner surface of the holder 20, primarily blocking light emitted by the light emitter 30, thereby preventing the light from escaping from between the aerosol-generating article 1000 and the inner surface of the holder 20 and out of the receiving opening 111. In another aspect, the sealing element 21 clamps or holds the aerosol-generating article 1000 in a radial direction.

[0140] As shown in FIG1 , the optical heater 30 is supported and held by the bracket 20 . The optical heater 30 is aligned with the receiving cavity 211 along the longitudinal direction of the heating device 100 . As shown in FIG1 , the optical heater 30 is closer to the distal end 120 than the receiving cavity 211. During use, the optical heater 30 emits light toward the proximal end 110 and / or the receiving cavity 211.

[0141] In the embodiment shown in FIG1 , the light heater 30 is configured as a lamp bead. In some alternative embodiments, the light heater 30 is substantially a spherical lamp bead. The light heater 30 has a diameter or width of approximately 3 to 7 mm. Alternatively, the light heater 30 can be approximately a point light source.

[0142] As shown in FIG1 , when the aerosol-generating article 1000 is received in the receiving chamber 211, the light heater 30 is spaced apart from the aerosol-generating article 1000. Alternatively, the light heater 30 and the aerosol-generating article 1000 are in non-contact. In the embodiment shown in FIG1 , along the longitudinal direction of the receiving chamber 211, when the aerosol-generating article 1000a is received in the receiving chamber, a first distance d11 is defined between the light heater 30 and the aerosol-generating article 1000. The first distance d11 is approximately 2 to 10 mm. Alternatively, along the longitudinal direction of the receiving chamber 211, a first distance d11 is defined between the light heater 30 and the receiving chamber 211.

[0143] In some embodiments, the bracket 20 is rigid; the bracket 20 can be made of rigid ceramic, polymer plastic, metal, etc. As shown in FIG1 , the bracket 20 includes:

[0144] The first support portion 210 and the second support portion 220 are both substantially cylindrical or tubular, with the first support portion 210 being closer to the proximal end 110 than the second support portion 220. The first support portion 210 primarily defines a receiving cavity 211 for accommodating and receiving the aerosol-generating article 1000, while the second support portion 220 is used to support and retain the light heater 30. After assembly, the light heater 30 at least partially extends into the first support portion 210.

[0145] In the embodiment shown in FIG. 1 , a support arm 222 extending in the radial direction is arranged on the second support portion 220 , and the optical heater 30 is held or fastened to the support arm 222 .

[0146] In the embodiment shown in FIG1 , the heating device 100 is further provided with an airflow channel, providing a flow path for delivering air to the aerosol-generating article 1000 during inhalation, as indicated by arrow R1 in FIG1 . Specifically, the second support portion 220 is further provided with an air inlet 221 for allowing air to enter the second support portion 220 during inhalation. In some specific embodiments, the air inlet 221 communicates with the outside atmosphere through a hole and / or assembly gap in the housing 10, thereby allowing external air to pass through the housing 10 and enter the second support portion 220 through the air inlet 221 during inhalation. The support arm 222 is further provided with a perforation 223 for air to pass through, thereby allowing air in the second support portion 220 to enter the aerosol-generating article 1000 in the first support portion 210.

[0147] In the embodiment shown in FIG1 , at least a portion of the surface of the light heater 30 is exposed in the airflow path; furthermore, the light heater 30 is located upstream of the aerosol-generating article 1000, or the aerosol-generating article 1000 is located downstream of the light heater 30. Thus, during a puff, air at least partially flows through the light heater 30, partially absorbing heat from the surface of the light heater 30 before being delivered to the aerosol-generating article 1000. This allows for simultaneous light heating and auxiliary heating of the aerosol-generating article 1000 by the hot air. The terms 'upstream' and 'downstream' are used with respect to the relative direction of a user's puff on the aerosol-generating article 1000 during use. Downstream can be the direction toward the user's puff, whereas upstream is the direction away from the user. Furthermore, upstream is the direction of air inflow, and downstream is the direction of air outflow.

[0148] In the embodiment shown in FIG1 , the second support portion 220 is further provided with:

[0149] The receiving wall 230 is arranged perpendicular to the axial direction of the second support portion 220 and facing away from the first support portion 210. The receiving wall 230 is used to receive debris, condensate, etc. that fall out of the aerosol-generating article 1000. The second support portion 220 also includes a tubular extension 231 extending radially outward. The conductive leads of the optical heater 30 pass through the tubular extension 231 and are electrically connected to the circuit board 130.

[0150] During use, the entire bracket 20 or the first supporting portion 210 or the second supporting portion 220 can be disassembled separately, which is beneficial for users to clean residues therefrom.

[0151] As shown in Figure 1, a portion of the light emitted by the light heater 30, which is basically a point light source, is directly irradiated or radiated to the upstream end of the aerosol generating article 1000 as shown by the arrow R2 in Figure 1 and is absorbed by the aerosol generating article 1000; another portion of the light is irradiated to the inner surface of the first supporting part 210 as shown by the arrow R3 in Figure 1 and is then reflected to the peripheral side surface of the aerosol generating article 1000 and is absorbed by the aerosol generating article 1000.

[0152] As shown in FIG1 , at least a portion of the inner surface of the first support portion 210 is arranged at an angle, thereby facilitating reflection to form the light path indicated by arrow R3. Alternatively, in a more specific embodiment, a portion of the inner surface of the first support portion 210 radially opposite the aerosol-generating article 1000 is inclined. Alternatively, in a more specific embodiment, the inner diameter of at least a portion of the first support portion 210 decreases toward the proximal end 110 and / or the receiving port 111, thereby facilitating reflection to form the light path indicated by arrow R3.

[0153] In some embodiments, at least a portion of the inner surface of the bracket 20 and / or the first support portion 210 is reflective, thereby reflecting light impinging on the bracket 20 and / or the first support portion 210 toward the aerosol-generating article 1000. In some specific embodiments, the reflectivity of at least a portion of the inner surface of the bracket 20 and / or the first support portion 210 can be achieved by spraying a reflective coating or film, etc. The reflective coating or film can include a metal such as silver, aluminum, tin, stainless steel, etc.

[0154] As shown in FIG1 and FIG2 , the optical heater 30 of this embodiment includes:

[0155] The light-transmitting cover 31 defines the outer surface of the light heater 30 ; the light-transmitting cover 31 is hollow and has a sealed cavity 33 therein;

[0156] The light-emitting element 32 is located within the cavity 33. The light-emitting element 32 and the light-transmitting cover 31 are non-contacting. The light-emitting element 32 is held or welded between a first conductive lead 341 and a second conductive lead 342. The first and second conductive leads 341 and 342 support and guide current. The first and second conductive leads 341 and 342 extend from the cavity 33 to the light-transmitting cover 31, and are then electrically connected to the circuit board 130.

[0157] In the embodiment shown in Figures 1 and 2, the light-emitting element 32 is an electroluminescent element that can emit light when powered by the circuit board 130. In an embodiment, the light-emitting element 32 is substantially configured in the form of a solenoid coil; and the diameters of the first conductive lead 341 and the second conductive lead 342 are larger than the diameter of the wire material of the light-emitting element 32. In some specific embodiments, the axis of the solenoid coil-shaped light-emitting element 32 is perpendicular to the longitudinal direction of the aerosol-generating article 1000 and / or the receiving cavity 211. In some specific embodiments, the solenoid coil-shaped light-emitting element 32 has approximately 3 to 8 windings and a length of approximately 2 to 5 mm. Furthermore, the wire material of the light-emitting element 32 has a diameter of approximately 0.05 to 0.4 mm.

[0158] In some embodiments, the conductor material of light-emitting element 32 may include tungsten filament, carbon fiber filament, or tin oxide filament. Alternatively, in other variations, the conductor material of light-emitting element 32 may be composed of an oxide of at least one metal element, such as Mg, Al, Ti, Zr, Mn, Fe, Co, Ni, Cu, Cr, or Zn. Alternatively, in other variations, the conductor material of light-emitting element 32 may include a luminescent metal or alloy, such as an Fe-Mn-Cu alloy. In one specific embodiment, light-emitting element 32 is a tungsten filament; alternatively, light-emitting element 32 is composed of a tungsten filament with a purity of 99% or greater.

[0159] Accordingly, the first conductive lead 341 and the second conductive lead 342 can be made of silver, copper, gold, or alloys thereof.

[0160] In some embodiments, the light shield 31 can be made of a high-temperature-resistant and light-transmitting material such as quartz, glass, ceramic, or mica; preferably, a transparent material. For example, the light shield 31 made of quartz can have a transmittance of over 90% for the light emitted by the light-emitting element 32. In a more preferred embodiment, the light shield 31 made of high-purity quartz can have a transmittance of over 95% for the light emitted by the light-emitting element 32.

[0161] In some embodiments, the light-emitting element 32 can be powered by the circuit board 130 and then heated by resistive Joule heating, emitting light at an operating temperature of 450 to 2800°C. More preferably, the light-emitting element 32 can emit light at an operating temperature of 800 to 2500°C. More preferably, the light-emitting element 32 can emit light at an operating temperature of 1300 to 2500°C. More preferably, the light-emitting element 32 can emit light at an operating temperature of 1500 to 2500°C, and the light wavelength range emitted is favorable for heating the aerosol-generating substrate. Alternatively, in a more preferred embodiment, the light-emitting element 32 can emit light at an operating temperature of 2000 to 2500°C, and the light wavelength range emitted is favorable for heating the aerosol-generating substrate. In some specific embodiments, the operating temperature of the light-emitting element 32 is 2000 to 2500°C.

[0162] FIG27 shows a spectrum of light emitted by the light-emitting element 32 at approximately 2300° C. in one embodiment. The wavelength of the light emitted by the light-emitting element 32 is in the range of 200 nm to 3500 nm. The light emitted by the light-emitting element 32 is substantially infrared light. Furthermore, the proportion of light with a wavelength of 800 nm to 1300 nm in the light emitted by the light-emitting element 32 is greater than 50%. Alternatively, in some other embodiments, the proportion of light with a wavelength of 800 nm to 1300 nm in the light emitted by the light-emitting element 32 is greater than 60%, which is advantageous for heating the aerosol-generating article 1000.

[0163] In some embodiments, when the light-emitting element 32 emits light at an operating temperature of 1500-2800°C, the light-transmitting cover 31 absorbs or transfers heat from the light-emitting element 32, thereby reaching a temperature of 300-600°C. When the light-transmitting cover 31 reaches this temperature, it can also emit infrared light of a longer wavelength to supplement or assist in heating the aerosol-generating article 1000. This allows the aerosol-generating substrate of the aerosol-generating article 1000 to be simultaneously heated by the light emitted by the heated light-transmitting cover 31, resulting in matched excitation and heating, and staggered excitation by the light emitted by the light-emitting element 32, resulting in a more favorable heating effect.

[0164] For example, Figure 28 shows a schematic diagram of the infrared absorption spectrum of the aerosol-generating substrate of the aerosol-generating article 1000 during heating by the light heater 30, as measured in one embodiment. As shown in Figure 28 , the aerosol-generating substrate's absorption of light has approximately a first absorption peak S1 and a second absorption peak S2. Furthermore, during light heating, the aerosol-generating substrate of the aerosol-generating article 1000 can be heated by both the matching excitation of light at the second absorption peak S2 and the offset excitation of light at the first absorption peak S1. The light at the second absorption peak S2 is primarily infrared light emitted by the light-transmitting cover 31 when it reaches temperatures between 300°C and 600°C. This light resonates with and excites tobacco components and aroma molecules on the surface of the aerosol-generating substrate of the aerosol-generating article 1000, thereby generating heating. In addition, the light of the first absorption peak S1 mainly comes from the light emitted by the light-emitting element 32 at an operating temperature of 1500 to 2800°C, and has a relatively shorter wavelength (inversely related to the wave number), so it has high penetrating power to penetrate into the tobacco components inside the aerosol-generating product 1000 and decompose them into aerosol through thermal effects, that is, dislocation excitation.

[0165] In some embodiments, the output voltage of the battery cell 140 can be approximately 3.7V to 4.5V. When the light-emitting element 32 operates at a temperature of 1500°C to 2800°C, it has a resistance of approximately 0.1Ω to 0.6Ω. During operation, the light-emitting element 32 has an operating power of approximately 20W to 60W. Furthermore, the light-emitting element 32 has a positive temperature coefficient of resistance, so that during use, the control circuit can determine the temperature of the light-emitting element 32 by measuring the resistance of the light-emitting element 32.

[0166] In some embodiments, the cavity 33 of the light-transmitting cover 31 is filled with a halogen, such as iodine vapor. In some specific embodiments, the cavity 33 is filled with 1×10-6 to 1×10-2 μmol / mm3 of halogen. Alternatively, in some embodiments, the cavity 33 of the light-transmitting cover 31 is filled with an inert gas, such as argon or helium.

[0167] Alternatively, in some embodiments, the pressure in the cavity 33 of the light-transmitting cover 31 is lower than the pressure outside the light-transmitting cover 31 , that is, the cavity 33 has a vacuum degree. In some specific embodiments, the pressure in the cavity 33 is lower than 0.85 atm.

[0168] As shown in FIG2 , the light shield 31 includes a first portion 311 and a second portion 312. After assembly, the first portion 311 is located within the first support portion 210, and the second portion 312 is located within the second support portion 220. After assembly, the light shield 31 is supported by the support arms 222, which are clamped and supported between the first portion 311 and the second portion 312.

[0169] In the embodiment shown in Figure 2 , both the first portion 311 and the second portion 312 are curved or arcuate surfaces with opposite curvature directions; the first portion 311 has a greater curvature than the second portion 312. A heat dissipation portion 313 is disposed on the second portion 312. The heat dissipation portion 313 may be, for example, fins extending outward from the surface of the second portion 312 to dissipate heat from the light-transmitting cover 31. In some embodiments, the heat dissipation portion 313 is integrally molded with the light-transmitting cover 31, and thus the heat dissipation portion 313 and the light-transmitting cover 31 are inseparable.

[0170] Alternatively, in some alternative embodiments, the second portion 312 is reflective. For example, the outer surface of the second portion 312 may be coated with a reflective coating such as silver, mercury, or aluminum by spraying or deposition. Furthermore, the second portion 312 is advantageously used to reflect light emitted by the light-emitting element 32 toward the first portion 311, thereby improving light utilization efficiency. In some embodiments, the second portion 312 has a substantially parabolic cross-sectional shape, which is advantageous for reflecting light emitted by the light-emitting element 32 toward the first portion 311.

[0171] FIG3 shows a schematic diagram of an aerosol generating system according to another embodiment; in this embodiment, the aerosol generating system comprises:

[0172] Aerosol-generating article 1000a;

[0173] A heating device 100a is configured to receive an aerosol-generating article 1000a and heat it to generate an aerosol. In this embodiment, the heating device 100a comprises:

[0174] The housing 10a is provided with a receiving opening 111a at the proximal end 110a for removably receiving the aerosol-generating article 1000a in the heating device 100a through the receiving opening 111a;

[0175] Battery cell 140a and circuit board 130a;

[0176] The holder 20a is generally cylindrical and extends longitudinally along the housing 10a. The holder 20a defines a receiving cavity 211a therein for accommodating and receiving the aerosol-generating article 1000a. The diameter of the receiving cavity 211a is larger than the diameter of the aerosol-generating article 1000a, such that when the aerosol-generating article 1000a is received in the receiving cavity 211a, there is a distance between the holder 20a and the receiving cavity 211a.

[0177] a stop structure 22a, such as a protrusion or abutment step arranged on the inner wall of the support 20a, for providing a stop for the upstream end of the aerosol-generating article 1000a by abutting against the stop structure 22a;

[0178] a sealing element 21 a elastically abutting between the aerosol-generating article 1000 a and the inner surface of the holder 20 a; the sealing element 21 a is disposed near the receiving opening 111 a to block light emitted by the light emitter 30 a, thereby preventing the light from being emitted from between the aerosol-generating article 1000 a and the inner surface of the holder 20 a to the outside of the receiving opening 111 a;

[0179] The air inlet 221a is arranged near the distal end 120a to allow air to enter the bracket 20a during suction.

[0180] As shown in FIG3 to FIG5 , the heating device 100a further includes:

[0181] The light heater 30a is configured to emit light toward the aerosol-generating article 1000a, thereby heating the aerosol-generating article 1000a. In this embodiment, the light heater 30a is longitudinally shaped, rather than spherical. In this embodiment, the axis of the light heater 30a is perpendicular to the longitudinal direction of the support 20a and / or the receiving cavity 211a.

[0182] In this embodiment, the light heater 30a includes:

[0183] The light-transmitting cover 31a is made of a heat-resistant light-transmitting material such as quartz, glass or ceramic. The light-transmitting cover 31a includes a first portion 311a and a second portion 312a arranged in sequence along the longitudinal direction. A cavity 33a is arranged in the first portion 311a.

[0184] The light-emitting element 32a is disposed within the cavity 33a and is configured to emit light. The light-emitting element 32a is made of a luminescent material such as tungsten filament, carbon fiber filament, or tin oxide filament. Power is supplied by the circuit board 130a to generate resistive Joule heating, and the light-emitting element 32a emits light with a wavelength of 200 nm to 3500 nm at an operating temperature of 450°C to 2800°C. More preferably, the light-emitting element 32a can emit light at an operating temperature of 800°C to 2500°C. Even more preferably, the light-emitting element 32a can emit light at an operating temperature of 1300°C to 2500°C. In this embodiment, the light-emitting element 32a is similarly configured as a solenoid coil formed from a conductive material. The solenoid coil-shaped light-emitting element 32a has approximately 3 to 8 windings and a length of approximately 2 to 5 mm. In this embodiment, the axis of the solenoid coil-shaped light-emitting element 32a is parallel to the longitudinal direction of the aerosol-generating article 1000a and / or the receiving cavity 211a. The two ends of the light emitting element 32a are connected to the outside of the light-transmitting cover 31a through the first conductive lead 341a and the second conductive lead 342a that are welded, and then connected to the circuit board 130a to supply power to the light emitting element 32a.

[0185] As shown in Figures 3 to 5 , the light-transmitting cover 31a is generally cylindrical. For example, the first portion 311a is cylindrical, and the cylindrical outer surface is advantageous for radiating the emitted light outward at a wide angle. Furthermore, the second portion 312a is non-cylindrical, such as a square column in Figures 3 to 5 . During installation and fixation, the bracket 20a and / or the heating device 100a advantageously holds or supports the second portion 312a, thereby securing the light heater 30a within the heating device 100a. The width of the second portion 312a is smaller than the diameter of the first portion 311a.

[0186] As shown in Figures 3 to 5, the first conductive lead 341a and the second conductive lead 342a extend from the cavity 33a through the second portion 312a to the outside of the light-transmitting cover 31a. A sealing material, such as a first sealing material 351a and a second sealing material 352a, is disposed within the second portion 312a. The first sealing material 351a and the second sealing material 352a are respectively used to provide a seal between the first conductive lead 341a and the second conductive lead 342a, thereby preventing the first conductive lead 341a and the second conductive lead 342a from forming a gap with the second portion 312a, thereby compromising the airtightness within the light-transmitting cover 31a.

[0187] In some embodiments, the first sealing material 351a and the second sealing material 352a are made of metals that can withstand high temperatures of at least 800°C, such as molybdenum, titanium, or alloys thereof. In some specific embodiments, during preparation, the first conductive lead 341a and the second conductive lead 342a are wrapped with a molybdenum sheet or a titanium alloy sheet, and then high-temperature welded to tightly bond the first conductive lead 341a and the second conductive lead 342a to the inner surface of the second portion 312a via the molybdenum sheet or the titanium alloy sheet, thereby forming a seal.

[0188] In some embodiments, the cavity 33a of the light-transmitting cover 31a is hermetically sealed. In some embodiments, the cavity 33a of the light-transmitting cover 31a is filled with a halogen, such as iodine vapor. In other embodiments, the cavity 33a of the light-transmitting cover 31a is filled with an inert gas. In other embodiments, the pressure in the cavity 33a of the light-transmitting cover 31a is lower than the pressure outside the light-transmitting cover 31a, i.e., the cavity 33a is vacuum. For example, the pressure in the cavity 33a of the light-transmitting cover 31a is less than 0.85 atm.

[0189] As shown in Figures 3 to 5, at least one protrusion 3111a is arranged on the end of the first portion 311a of the light-transmitting cover 31a facing away from the second portion 312a. In some embodiments, the protrusion 3111a is a residual manufacturing feature formed by heat-melting the portion after a needle of an inflation device or vacuum device penetrates the light-transmitting cover 31a, vacuuming or injecting gas into the cavity 33a, and then withdrawing the needle.

[0190] As shown in FIG3 , the light heater 30a is also essentially a point light source, emitting light that radiates radially outward from the light-emitting element 32a. During heating, a portion of the light emitted by the light heater 30a directly impinges on the upstream end of the aerosol-generating article 1000a, while a portion impinges on the inner surface of the holder 20a and is then reflected onto the outer surface of the aerosol-generating article 1000a, thereby heating the aerosol-generating article 1000a.

[0191] As shown in FIG3 , the optical heater 30a is non-contact with the aerosol-generating article 1000a, and thus the optical heater 30a does not heat the aerosol-generating article 1000a via contact heat conduction. Specifically, as shown in FIG3 , along the longitudinal direction of the receiving cavity, when the aerosol-generating article 1000a is received in the receiving cavity, a first distance d11 is defined between the optical heater 30a and the aerosol-generating article 1000a; the first distance d11 is approximately 2 to 10 mm.

[0192] FIG6 shows a schematic diagram of an aerosol generating system according to another embodiment. In this embodiment, a heating device 100b of the aerosol generating system comprises:

[0193] The support 20b surrounds or defines a receiving cavity for receiving and containing the aerosol-generating article 1000b;

[0194] The light heater 30b is configured to heat the aerosol-generating article 1000b by emitting light toward the aerosol-generating article 1000b. In this embodiment, the light heater 30b is disposed substantially along the longitudinal extension of the support 20b and / or the aerosol-generating article 1000b and is spaced apart from the aerosol-generating article 1000b. In this embodiment, the light heater 30b includes a light-transmitting cover 31b and a light-emitting element 32b located within a cavity 33b of the light-transmitting cover 31b. The light-emitting element 32b is configured in the form of a solenoid coil. Conductive leads 34b are soldered to the outside of the light-transmitting cover 31b and then connected to the circuit board 130b to power the light-emitting element 32b. The conductive leads 34b are sealed to the light-transmitting cover 31b by a sealing material 35b.

[0195] As shown in FIG6 , the heating device 100b further includes:

[0196] The light guide 40b is configured to direct a portion of the light emitted by the light heater 30b during use toward the outer surface of the aerosol-generating article 1000b. The light guide 40b is configured to surround at least a portion of the light heater 30b. The light guide 40b primarily reflects light emitted from a substantially point source and directs the light toward the outer surface of the aerosol-generating article 1000b. The light guide 40b may be located outside the light heater 30b, or the light heater 30b may be enclosed within the light guide 40b.

[0197] In some embodiments, the inner and / or outer surfaces of the light guide 40b are defined by a reflective material. For example, the light guide 40b may be made of a polished mercury, silver, aluminum, stainless steel, or the like. Alternatively, in some embodiments, the light guide 40b includes a substrate such as glass and a reflective coating such as a mercury coating deposited or sprayed onto the substrate.

[0198] In some embodiments, the light emitted by the photoheater 30b, which is a near-point light source, is partially irradiated directly onto the upstream end of the aerosol-generating article 1000b as indicated by arrow R2 in FIG. 6 , and partially reflected at least once or multiple times by the inner surface of the light guide 40b as indicated by arrow R4 in FIG. 6 , before being directed to the outer surface of the aerosol-generating article 1000b. This is advantageous for improving the utilization efficiency of the light emitted by the photoheater 30b.

[0199] In some embodiments, the light guide 40b includes a first light guiding portion 41b and a second light guiding portion 42b; wherein the first light guiding portion 41b surrounds the light heater 30b and the second light guiding portion 42b extends from the first light guiding portion 41b to the outer surface of the aerosol-generating article 1000b.

[0200] In some embodiments, the first light guide portion 41b has a cross-sectional shape that is approximately parabolic. The light heater 30b is generally positioned at or near the focus (in geometric terms) of the parabolic cross-section of the first light guide portion 41b. This arrangement is advantageous for maximizing the utilization of light emitted by the light heater 30b.

[0201] In some embodiments, the second light-guiding portion 42b is primarily used to further reflect and guide light reflected from the first light-guiding portion 41b toward the proximal end 110 toward the outer surface of the aerosol-generating article 1000b, as indicated by arrow R4 in Figure 6. In some embodiments, at least a portion of the second light-guiding portion 42b is curved.

[0202] Alternatively, FIG7 shows a schematic diagram of an aerosol generating system according to another embodiment, in which a heating device 100c comprises:

[0203] a light heater 30c for heating the aerosol-generating article 1000c received in the receiving cavity by light; the light heater 30c is spaced apart from the receiving cavity along the longitudinal direction of the receiving cavity, and is thus non-contacting with the aerosol-generating article 1000c;

[0204] A light guide 40c is disposed around at least a portion of the light heater 30c. The light guide 40c primarily reflects light emitted by the light heater 30c, which resembles a point light source, and directs the light toward the outer surface of the aerosol-generating article 1000c. The light guide 40c is located outside the light heater 30c, or the light heater 30c is enclosed within the light guide 40c. In some embodiments, part of the light emitted by the light heater 30c, which resembles a point light source, is directly irradiated onto the upstream end of the aerosol-generating article 1000c, as indicated by arrow R2 in FIG. 7 , and part of the light is reflected at least once or multiple times from the inner surface of the light guide 40c, as indicated by arrow R4 in FIG. 7 , before being directed toward the outer surface of the aerosol-generating article 1000c. This is advantageous for improving the utilization efficiency of the light emitted by the light heater 30c. In some embodiments, the inner surface of the light guide 40c is made of a reflective material. For example, the light guide 40c is made of mercury, silver, aluminum, stainless steel, etc. with a bright surface; or in some embodiments, the light guide 40c includes a substrate such as glass, and a reflective coating such as a mercury coating deposited or sprayed on the substrate.

[0205] In the embodiment shown in FIG7 , the light guide 40c includes a first light-guiding portion 41c and a second light-guiding portion 42c. The first light-guiding portion 41c surrounds the light heater 30c, and the second light-guiding portion 42c extends from the first light-guiding portion 41c to the outer surface of the aerosol-generating article 1000c. In FIG7 , both the first light-guiding portion 41c and the second light-guiding portion 42c are arranged at an angle. The second light-guiding portion 42c is primarily used to further reflect and guide light reflected from the first light-guiding portion 41c toward the proximal end 110c toward the outer surface of the aerosol-generating article 1000c, as indicated by arrow R4 in FIG7 .

[0206] In the embodiment shown in FIG7 , the first light guiding portion 41 c and / or the second light guiding portion 42 c may be tapered. Furthermore, the angle between the first light guiding portion 41 c and the second light guiding portion 42 c is an obtuse angle. More preferably, the angle between the first light guiding portion 41 c and the second light guiding portion 42 c is between 90° and 135°.

[0207] 8 and 9 show schematic diagrams of a light heater 30d according to another embodiment; in this embodiment, the light heater 30d includes:

[0208] The light-transmitting cover 31d is made of, for example, a heat-resistant, light-transmitting material such as quartz, glass, or ceramic. In this embodiment, the light-transmitting cover 31d is longitudinally extended, for example, the light-transmitting cover 31d may be cylindrical. The light-transmitting cover 31d defines a sealed cavity 33d therein.

[0209] The light-emitting element 32d is disposed within the cavity 33d and is not in contact with the light-transmitting cover 31d. In this embodiment, the light-emitting element 32d is configured as a planar spiral coil and is arranged substantially perpendicular to the longitudinal direction of the light heater 30d. In this embodiment, the light-emitting element 32d of the planar spiral coil can have substantially the same diameter as that of the aerosol-generating article 1000d; for example, the diameter of the light-emitting element 32d of the planar spiral coil is 4 to 10 mm.

[0210] As shown in Figures 8 and 9 , the light-transmitting cover 31d has a first end surface 310d that is substantially flat, and the planar spiral coil light-emitting element 32d is arranged substantially parallel to the first end surface 310d. As shown in Figures 8 and 9 , the light-transmitting cover 31d has a first extension 311d and a second extension 312d that extend longitudinally away from the first end surface 310d. During installation or assembly, the heating device 100d can be secured to the first extension 311d and the second extension 312d, thereby ensuring that the light heater 30d is stably mounted within the heating device 100d.

[0211] As shown in Figures 8 and 9, the two ends of the light-emitting element 32d are connected to the first conductive lead 321d and the second conductive lead 322d; the first conductive lead 321d passes through the first extension portion 311d from the cavity 33d to the outside of the light-transmitting cover 31d, and the second conductive lead 322d passes through the second extension portion 312d from the cavity 33d to the outside of the light-transmitting cover 31d; in use, the parts of the first conductive lead 321d and the second conductive lead 322d passing through to the outside of the light-transmitting cover 31d are connected to the circuit board 130d for powering the light-emitting element 32d.

[0212] In the embodiments shown in Figures 8 and 9, the light emitting element 32d of the planar spiral coil is spirally wound with a wire material such as tungsten wire, carbon fiber wire, etc. Alternatively, the light emitting element 32d is substantially planar.

[0213] Alternatively, in some alternative embodiments, the light-emitting element 32d is formed by printing, depositing, or spraying a slurry containing the above-mentioned light-emitting materials on a flat substrate; or, the light-emitting element 32d includes:

[0214] A substantially planar substrate, and a light-emitting track or light-emitting coating formed on the substrate by printing, deposition, or spraying. The light-emitting track or light-emitting coating may comprise light-emitting materials such as tungsten, tin oxide, or carbon fiber. The substrate may comprise a heat-resistant rigid material such as quartz, glass, or ceramic. The light-emitting track or light-emitting coating formed by printing, deposition, or spraying may be in the shape of a planar spiral coil, a winding, extended shape, or a patterned track.

[0215] FIG10 shows a schematic diagram of a heating device 100d including the heating device shown in FIG8 and FIG9 , according to one embodiment. In this embodiment, when the light heater 30d is installed in the heating device 100d , the first end surface 310d of the light-transmitting cover 31d faces the aerosol-generating article 1000d and is spaced apart from the aerosol-generating article 1000d. Light emitted by the light-emitting element 32d is primarily directed from the first end surface 310d to the upstream end surface of the aerosol-generating article 1000d , as indicated by arrow R2 in FIG10 .

[0216] Alternatively, Figures 11 to 13 show schematic diagrams of an aerosol generating system according to another embodiment; in this embodiment, a heating device 100e of the aerosol generating system includes:

[0217] a receiving opening 111e and a receiving cavity 24e for removably receiving an aerosol-generating article 1000e;

[0218] The optical heater 30e is configured to be in the shape of a pin, a column, a rod, or a bar, etc., which at least partially extends from the base 20e into the receiving cavity 24e.

[0219] In this embodiment, the aerosol-generating article 1000e comprises at least:

[0220] A plurality of elements are arranged from the upstream end to the downstream end: an aerosol-generating substrate 1200e and a filter element 1110e; the aerosol-generating substrate 1200e and the filter element 1110e are enclosed and confined by an outer wrapper 1140e.

[0221] Filter element 1110e is used to filter the aerosol before it is delivered to the user. In the embodiment shown in Figure 12, filter element 1110e comprises a conventional cellulose acetate or polypropylene tow filter with low filtration efficiency. Outer wrapper 1140e is conventional cigarette paper, fiber material, organic polymer, etc.

[0222] Aerosol-generating substrate 1200e, located near the upstream end; aerosol-generating substrate 1200e is used to describe a substrate capable of releasing volatile compounds upon heating, which can form an aerosol. Aerosols as described herein can be visible or invisible and can include vapors (e.g., fine particles of a substance in a gaseous state that is typically liquid or solid at room temperature) as well as droplets of gas and condensed vapor. Aerosol-generating substrate 1200e can include, for example, one or more of the following: powders, granules, pellets, shreds, strands, strips, or flakes comprising one or more of the following: dried flowers or fragrant leaves, grass leaves, tobacco leaves, tobacco main veins, expanded tobacco, and homogenized tobacco. In an optional embodiment, aerosol-generating substrate 1200e comprises a gathered sheet of corrugated homogenized tobacco material confined by an outer wrapper 1140e; the gathered sheet of corrugated homogenized tobacco material includes glycerin as an aerosol-forming agent.

[0223] In the embodiment shown in FIG12 , the aerosol-generating substrate 1200 e is substantially annular in shape. A central aperture 1130 e is defined within the aerosol-generating substrate 1200 e. In some embodiments, the aerosol-generating substrate 1200 e has a length of approximately 10 to 20 mm. Furthermore, the central aperture 1130 e has a diameter of approximately 3 to 5 mm.

[0224] As shown in FIG13 , when the aerosol-generating substrate 1200e is received in the receiving cavity 24e of the heating device 100e, the light heater 30e can extend into the central hole 1130e of the aerosol-generating substrate 1200e and emit light toward the aerosol-generating substrate 1200e to heat the aerosol-generating substrate 1200e. In the embodiment shown in FIG13 , when the light heater 30e extends into the central hole 1130e of the aerosol-generating substrate 1200e to provide heating, the light heater 30e and the inner surface of the aerosol-generating substrate 1200e are in non-contact. In some embodiments, the first distance d11 between the light heater 30e and the inner surface of the aerosol-generating substrate 1200e is greater than 1 mm. For example, in a specific embodiment, the first distance d11 between the light heater 30e and the inner surface of the aerosol-generating substrate 1200e is between 1 and 5 mm. This prevents the light heater 30e from heating the aerosol-generating substrate 1200e through contact heat transfer. The first distance d11 is a gap or distance formed between the aerosol-generating substrate 1200e and / or the light heater 30e in a radial direction thereof.

[0225] As shown in FIG14 , the optical heater 30 e includes:

[0226] The light-transmitting cover 31e is made of a light-transmitting material such as quartz or glass, and is configured in the shape of an elongated pin, a column, a rod, or a bar. The light-transmitting cover 31e has a sealed cavity 33e therein.

[0227] The light emitting element 32e is located in the cavity 33e and is not in contact with the light-transmitting cover 31e. The light emitting element 32e is configured in the form of a solenoid coil extending in the longitudinal direction of the light-transmitting cover 31e.

[0228] Alternatively, in some alternative embodiments, the light emitting element 32e and the light-transmitting cover 31e may be in contact with each other.

[0229] In the embodiment shown in Figure 14, the front end of the light-transmitting cover 31e is substantially flat. Alternatively, in some other embodiments, the front end of the light-transmitting cover 31e is configured to be in the shape of a conical tip.

[0230] In some embodiments, the light-transmitting cover 31e has an outer diameter of approximately 1.5-4 mm; and the light-transmitting cover 31e has a wall thickness of approximately 0.1-0.5 mm.

[0231] In some embodiments, the light-emitting element 32e has a diameter of approximately 1 to 3 mm and a length of approximately 8 to 15 mm. The light-emitting element 32e is made of a luminescent material such as tungsten filament, carbon fiber filament, or tin oxide filament, and emits light at an operating temperature of 450 to 2800°C. In this embodiment, the light-emitting element 32e has a length such that the light heater 30e is substantially a linear light source. Alternatively, in some embodiments, the light heater 30e is configured as a slender tube.

[0232] Alternatively, FIG. 15 shows a schematic diagram of a light heater 30 f according to another embodiment. In this embodiment, the light heater 30 f includes:

[0233] The light-transmitting cover 31f has an expanded portion 311f near the front end; the expanded portion 311f can be approximately spherical in shape; when the light heater 30f extends into the aerosol-generating matrix 1120f of the aerosol-generating product for light heating, the expanded portion 311f can abut against and contact the inner surface of the aerosol-generating matrix 1120f; and a second distance d12 is defined between the other parts of the light-transmitting cover 31f and the inner surface of the aerosol-generating matrix 1120f.

[0234] Alternatively, FIG. 16 shows a schematic diagram of a light heater 30g according to another embodiment. In this embodiment, the light heater 30g includes:

[0235] The light-transmitting cover 31g includes a first portion 311g, a second portion 312g, and a third portion 313g, which are arranged in sequence along the longitudinal direction and have different outer diameters; wherein the diameter of the second portion 312g is smaller than the diameters of the first portion 311g and the third portion 313g;

[0236] Light-emitting element 32g is located within second portion 312g and longitudinally avoids first portion 311g and third portion 313g. When light heater 30g extends into aerosol-generating substrate 1120f to heat, first portion 311g and third portion 313g abut against the inner surface of aerosol-generating substrate 1120f, and a second distance d12 is formed between second portion 312g and the inner surface of aerosol-generating substrate 1120f.

[0237] Alternatively, FIG. 17 shows a schematic diagram of a light heater 30h according to another embodiment. In this embodiment, the light heater 30h includes:

[0238] The light-transmitting cover 31h and the light-emitting element 32h located within the light-transmitting cover 31h are shown. In this embodiment, at least one or more raised structures 311h are arranged on the outer surface of the light-transmitting cover 31h. The raised structures 311h can be arc-shaped, which is equivalent to forming at least one or more collimating lenses (a term for optical devices) on the outer surface of the light-transmitting cover 31h. This can be used to create an optical effect similar to that of a collimating lens on the outer surface of the light-transmitting cover 31h, thereby improving the utilization of uniform light.

[0239] Alternatively, Figure 18 shows a schematic diagram of a light heater 30j according to another alternative embodiment. In this embodiment, the light-transmitting cover 31j has a roughly spherical protrusion 311j at its front end. In some embodiments, this protrusion 311j is a residual manufacturing feature formed by heat-melting the needle after it penetrates the light-transmitting cover 31j, evacuates or injects gas into the cavity 33j, and then is pulled out and the needle is removed. Alternatively, in still other embodiments, this protrusion 311j is an artistic design for visual aesthetics. Alternatively, in still other embodiments, making the front end of the light-transmitting cover 31j smaller is advantageous for allowing the light-transmitting cover 31j to extend from its front end into the annular aerosol-generating matrix 1120f.

[0240] Alternatively, FIG. 19 shows a schematic diagram of a light heater 31k according to another embodiment of the present invention. In this embodiment, the light heater 30k includes:

[0241] The substrate 31 k has a first portion 311 k, a second portion 312 k, and a third portion 313 k, which are arranged in sequence along the longitudinal direction and have different outer diameters. The diameter of the second portion 312 k is smaller than the diameters of the first portion 311 k and the third portion 313 k. When the light heater 30 k is inserted into the aerosol-generating substrate 1120 f for heating, the first portion 311 k and the third portion 313 f k abut against the inner surface of the aerosol-generating substrate 1120 f, and a second distance d12 is formed between the second portion 312 k and the inner surface of the aerosol-generating substrate 1120 f.

[0242] Light-emitting element 32k is configured to emit light. Light-emitting element 32k is formed or bonded to second portion 312k of substrate 31k, avoiding first portion 311k and third portion 313k. Light-emitting element 32k may be, for example, a light-emitting trace or light-emitting coating formed on second portion 312k by spraying, depositing, or printing.

[0243] Alternatively, FIG. 20 shows a schematic diagram of a light heater 30m according to another embodiment, and FIG. 21 shows a schematic diagram of a heating device 100m including the light heater 30m. In this embodiment, the light heater 30m includes:

[0244] The light-transmitting cover 31m is made of, for example, a heat-resistant, light-transmitting material such as quartz, glass, or ceramic. In this embodiment, the light-transmitting cover 31m defines a sealed cavity 33m therein. The light-transmitting cover 31m includes a first extension portion 311m and a second extension portion 312m extending longitudinally toward and terminating at the distal end. During installation or assembly, the heating device 100m can be coupled to the first extension portion 311m and the second extension portion 312m to thereby provide support for the optical heater 30m, thereby ensuring that the optical heater 30m is stably installed within the heating device 100m.

[0245] The light-emitting element 32m is disposed within the cavity 33m and is not in contact with the light-transmitting cover 31m. In this embodiment, the light-emitting element 32m is configured as a planar spiral coil and is arranged substantially perpendicular to the longitudinal direction of the light heater 30m. In this embodiment, the diameter of the planar spiral coil light-emitting element 32m is 4 to 10 mm. The first and second conductive leads 321m and 322m, respectively, connecting the two ends of the light-emitting element 32m, extend through the first and second extensions 311m and 312m to the outside of the light-transmitting cover 31d, thereby facilitating connection to the circuit board 130m.

[0246] As shown in Figures 20 and 21 , the light-transmitting cover 31m has an elongated third extension portion 313m that extends toward and terminates at the front end. The third extension portion 313m is hollow and communicates with the cavity 33m. When the aerosol-generating article 1000m is received in the heating device 100m, the light-emitting element 32m is located outside the aerosol-generating substrate 1200m of the aerosol-generating article 1000m, while the third extension portion 313m extends into the aerosol-generating substrate 1200m of the aerosol-generating article 1000m. Furthermore, during use, a portion of the light emitted by the light-emitting element 32m is directly irradiated to the upstream end face of the aerosol generating substrate 1200m as shown by the arrow R2 in Figure 21, and the other portion is radiated to the inner surface of the aerosol generating substrate 1200m after passing through the third extension portion 313m as shown by the arrow R5 in Figure 21; simultaneously radiating light from the inner surface and the upstream end face of the aerosol generating substrate 1200m for heating is beneficial for uniform heating.

[0247] Alternatively, Figures 22 to 25 show schematic diagrams of an aerosol generating system comprising a heating device 100n and an aerosol generating article 1000n according to yet another embodiment. In this embodiment, the aerosol generating article 1000n is in the form of a sheet. The aerosol generating article 1000n is a laminated structure comprising multiple layers. The aerosol generating article 1000n comprises:

[0248] Base layer 1100n, support layer 1300n, and aerosol-generating substrate 1200n. Aerosol-generating substrate 1200n is mainly heated to generate aerosol.

[0249] In some embodiments, the base layer 1100n can be made of heat-conductive metal or alloy foil, such as aluminum foil, ceramic, hard paper, plastic, etc. The base layer 1100n provides a substrate for combining and arranging the support layer 1300n and the aerosol generating matrix 1200n.

[0250] In some embodiments, a support layer 1300n is bonded to the base layer 1100n. The support layer 1300n serves to enhance the mechanical strength of the aerosol-generating article 1000n. In some embodiments, the support layer 1300n comprises paper. Alternatively, the support layer 1300n comprises a fiber layer, such as a fiber paper made from wood fiber, hemp fiber, flax fiber, bamboo fiber, or the like. In this embodiment, the support layer 1300n is surrounded or arranged with a plurality of discretely arranged receiving cavities 1310n. The aerosol-generating substrate 1200n comprises a plurality of substrate units discretely arranged within the receiving cavities 1310n.

[0251] In some embodiments, the discrete substrate units of the aerosol-generating substrate 1200n can be independently heated sequentially to generate an aerosol. The surfaces of the discrete substrate units of the aerosol-generating substrate 1200n are at a height difference from the surface of the support layer 1300n; alternatively, the surface of the aerosol-generating substrate 1200n is not flush with the surface of the support layer 1300n. Specifically, the surface of the aerosol-generating substrate 1200n is recessed relative to the surface of the support layer 1300n. As shown in FIG. 24 , the surrounding cavity 1310n is open or open on one side, thereby forming an outlet for outputting the aerosol.

[0252] In some embodiments, the number of substrate units of the aerosol-generating substrate 1200n may be greater, the substrate units of the aerosol-generating substrate 1200n may be arranged at intervals along a predetermined direction, or the substrate units of the aerosol-generating substrate 1200n may be arranged in a matrix.

[0253] As shown in Figures 23 and 24 , the base layer 1100n further includes an operating portion 1110n that protrudes in the longitudinal direction relative to the support layer 1300n. The operating portion 1110n is operated by a user, for example, by pinching it with a finger, to receive or remove the aerosol-generating article 1000n into or from the receiving cavity 114n of the heating device 100n. During use, the operating portion 1110n is not received in the receiving cavity 114n of the heating device 100n, or is exposed outside the receiving cavity 114n of the heating device 100n.

[0254] As shown in FIG. 22 to FIG. 25 , the heating device 100n includes:

[0255] The receiving port 113n is arranged on the first side of the heating device 100n;

[0256] The receiving cavity 114n is configured such that, during use, a user can grasp the operating portion 1110n to receive the aerosol-generating product 1000n through the receiving opening 113n into the receiving cavity 114n. Specifically, the aerosol-generating substrate 1200n is received in the receiving cavity 114n and aligned with the light heater 30n. When the aerosol-generating substrate 1200n of the aerosol-generating product 1000n is received in the receiving cavity 114n, the operating portion 1110n is exposed outside the receiving cavity 114n of the heating device 100n.

[0257] a stop structure 112n, when the aerosol-generating article 1000n is received in the receiving cavity 114n through the receiving opening 113n, the aerosol-generating article 1000n abuts against the stop structure 112n to form a stop;

[0258] When the aerosol-generating article 1000n is received in the receiving cavity 114n, the aerosol-generating article 1000n does not completely block or seal the receiving opening 113n, so that the receiving opening 113n is also used as an air inlet for external air to enter the receiving cavity 114n during inhalation; and

[0259] an air outlet 111n, arranged on the second side of the heating device 100n, for outputting aerosol during inhalation;

[0260] Battery cell 140n and circuit board 130n.

[0261] As shown in FIG. 22 to FIG. 25 , the heating device 100n further includes:

[0262] The light heater 30n is adjacent to the receiving cavity 114n or at least partially defines the receiving cavity 114n; when the aerosol-generating article 1000n is received in the receiving cavity 114n, the light heater 30n is directed toward or aligned with the aerosol-generating substrate 1200n of the aerosol-generating article 1000n; thereby heating the substrate units of the aerosol-generating substrate 1200n by radiating light to generate an aerosol.

[0263] In this embodiment, the light heater 30n is basically configured in the form of a light board; the light heater 30n is basically plate-shaped; specifically, the light heater 30n includes:

[0264] The light-transmitting cover 31n is at least partially exposed in the receiving cavity 114n or at least partially defines the receiving cavity 114n;

[0265] A plurality of light-emitting elements 32n are arranged discretely or in a matrix; the plurality of light-emitting elements 32n are arranged opposite to the substrate units of the plurality of aerosol-generating substrates 1200n; so that each light-emitting element 32n can emit light toward the substrate unit of the corresponding aerosol-generating substrate 1200n, thereby heating the substrate unit to generate aerosol;

[0266] The opaque partition wall 313n is located between adjacent light-emitting elements 32n, and can isolate or seal each light-emitting element 32n while preventing the light emitted by the light-emitting element 32n from radiating to other substrate units of the aerosol generating substrate 1200n;

[0267] The opaque support wall 312n is arranged opposite to the transparent cover 31n, and together with the transparent cover 31n, defines a sealed cavity therebetween for accommodating the light-emitting element 32n. In a similar embodiment, the cavity accommodating the light-emitting element 32n is sealed. In addition, the light-emitting element 32n is not in contact with the transparent cover 31n or the support wall 312n. The light-emitting element 32n is made of a light-emitting material such as tungsten filament, carbon fiber filament, tin oxide filament, etc., and emits light at an operating temperature of 450 to 2800°C. When the light-emitting element 32n is operating, the transparent cover 31n can absorb or transfer heat from the light-emitting element 32n so that its own temperature has a range of 300 to 600°C. In a similar embodiment, the cavity is filled with a halogen, such as iodine vapor; or in some embodiments, the cavity is filled with an inert gas, such as argon or helium.

[0268] In some embodiments, the circuit board 130n is configured to control the heating of the plurality of light-emitting elements 32n, one after another, in a predetermined order. In some embodiments, the circuit board 130n is configured to control the heating of the plurality of light-emitting elements 32n to be different from one another at a time; for example, when a user takes a puff, the circuit board 130n controls only one light-emitting element 32n to heat and generate aerosol sufficient for one puff. In some embodiments, during each puff, the circuit board 130n controls the heating of the plurality of light-emitting elements 32n independently. The amount of total particulate matter (TPM) generated by a unit of the aerosol-generating substrate 1200n may be at least 1.5 mg, at least 1.7 mg, at least 2.0 mg, at least 2.5 mg, at least 3.0 mg, about 1.0 mg to about 5.0 mg, about 1.5 mg to about 4.0 mg, about 2.0 mg to about 4.0 mg, or about 2.0 mg to about 3.0 mg, at least 3 mg to about 7 mg, about 4 mg to about 8 mg, and about 5 mg to about 10 mg.

[0269] In some embodiments, the circuit board 130n controls the predetermined order in which the plurality of light-emitting elements 32n are activated one after another. Specifically, for example, during a user's first puff, the circuit board 130n provides power to the first light-emitting element 32n closest to the left for heating, generating aerosol for one puff. During the user's next puff, the circuit board 130n provides power to the second light-emitting element 32n closest to the left for heating, generating aerosol for one puff. This process continues until all light-emitting elements 32n are heated, indicating that the substrate unit of the aerosol-generating article 1000n has been puffed through, prompting the user to replace the aerosol-generating article 1000n with a new one. In the above embodiments, activating the light-emitting elements 32n individually rather than simultaneously for heating minimizes unnecessary consumption of the aerosol-generating substrate and reduces energy waste. Alternatively, in other embodiments, the sequence in which the plurality of light-emitting elements 32n are activated in the predetermined order is along the direction of the array arrangement. Alternatively, in some alternative implementations, the circuit board 130n controls the plurality of light-emitting elements 32n to be individually activated sequentially, without interruption along the arrangement direction of the light-emitting elements 32n. Alternatively, in some alternative implementations, the circuit board 130n controls the plurality of light-emitting elements 32n to be individually activated sequentially, with interruptions or in a skipped manner.

[0270] For example, in some embodiments, several or more light-emitting elements 32n can be energized sequentially, that is, energized once each time the user takes a puff, thereby consistently generating aerosol based on each puff. Accordingly, in some embodiments, each user puff action can be sensed by an airflow sensor, such as a microphone or MEMS sensor; and based on the sensing results of the airflow sensor, the circuit board 130n sequentially energizes several or more light-emitting elements 32n. In a preferred embodiment, the circuit board 130n controls the sequential activation of several light-emitting elements 32n in a predetermined order, which is based on the user's puff action. And in some other variations, the circuit board 130n controls the sequential activation of several light-emitting elements 32n at predetermined intervals; for example, the predetermined interval is between approximately 30 seconds and 300 seconds.

[0271] When the aerosol-generating article 1000n is received in the receiving cavity 114n, the substrate units of the aerosol-generating substrate 1200n face or approach the light-transmitting cover 31n, and are spaced apart from, but not in contact with, the light-transmitting cover 31n. Alternatively, in some specific embodiments, the heating device 100n is configured such that the aerosol-generating article 1000n can only be received in the receiving cavity 114n in a predetermined orientation, where the predetermined orientation positions the substrate units of the aerosol-generating substrate 1200n toward or approach the light-transmitting cover 31n.

[0272] In this embodiment, support walls 312n are used to support and secure the light heater 30n. Furthermore, support walls 312n isolate the light-emitting element 32n from the electronics chamber 150n, where the circuit board 130n and battery cells 140n are located. Soldered conductive leads from the light-emitting element 32n pass through the support walls 312n and extend into the electronics chamber 150n, where they are electrically connected to the circuit board 130n, providing power to the light-emitting element 32n.

[0273] In some embodiments, the electronic chamber 150n and the optical heater 30n are optically isolated from each other to prevent the light emitted by the light emitting element 32n from irradiating the circuit board 130n and the battery cell 140n in the electronic chamber 150n.

[0274] In the embodiment shown in FIG. 25 , the surface of the light-transmitting cover 31 n facing or adjacent to the receiving cavity 114 n is a flat surface.

[0275] Alternatively, Figure 26 shows a schematic diagram of a heating device 100p of another embodiment, in which the surface of the light-transmitting cover 31p of the light heater facing or adjacent to the receiving cavity 114p is non-flat; for example, the surface of the light-transmitting cover 31p facing or adjacent to the receiving cavity 114p includes or is constructed to be a curved arc surface, and protrudes toward the receiving cavity 114p; thereby, the effect of a collimating lens can be approximately formed, which is beneficial for guiding the light emitted by the light-emitting element 32p toward the relative substrate unit as much as possible.

[0276] Alternatively, in some alternative embodiments, the light heater 30n and / or the aerosol generating article 1000n are movably arranged in the heating device 100n; and can be operated by a user to move one of them relative to the other, thereby changing the alignment position of the light-emitting element 32n with the discrete substrate units, thereby selectively changing the heating of the substrate units of the aerosol generating substrate 1200n.

[0277] Alternatively, in some other embodiments, the above aerosol generating system may also be an aerosol generating system that generates aerosol by heating a liquid aerosol generating substrate; for example, the aerosol generating system may include:

[0278] a liquid storage chamber for storing a liquid aerosol-generating matrix;

[0279] a liquid-conducting element for being in fluid communication with the liquid storage chamber, thereby drawing in the liquid aerosol to generate the matrix;

[0280] A light heater is optically coupled to the liquid-conducting element to generate an aerosol by optically heating at least a portion of the liquid aerosol-generating substrate within the liquid-conducting element.

[0281] In some embodiments, the liquid-conducting element is, for example, a flexible capillary fiber element such as a sponge, natural cotton, or a rigid porous element such as a porous ceramic body, a porous glass body, or the like.

[0282] In some embodiments, a light heater, such as the light heaters described in the above embodiments, heats the liquid aerosol-generating substrate by emitting light.

[0283] It should be noted that the specification and drawings of this application provide preferred embodiments of the present application, but are not limited to the embodiments described in this specification. Furthermore, it is possible for a person skilled in the art to make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the claims attached to this application.

Claims

1. A heating device, configured to heat an aerosol-generating article to generate an aerosol; characterized in that: include: a receiving chamber for receiving the aerosol generating product; a light heater for emitting light to illuminate the aerosol-generating article, thereby heating the aerosol-generating article by the light to generate an aerosol; When the aerosol-generating article is received in the receiving cavity, the photoheater is in non-contact with the aerosol-generating article.

2. The heating device according to claim 1, characterized in that The light heater is configured to be substantially a point light source, a line light source or a surface light source; And / or, the light heater is configured substantially in the form of a light bulb, a light tube or a light panel.

3. The heating device according to claim 1 or 2, characterized in that: Along the longitudinal direction of the receiving cavity, the light heater is arranged at a distance from the receiving cavity; when the aerosol generating product is received in the receiving cavity, there is a first distance between the light heater and the receiving cavity, thereby making the light heater non-contact with the aerosol generating product.

4. The heating device according to claim 3, characterized in that The first spacing is 2-10 mm.

5. The heating device according to claim 1 or 2, characterized in that: Also includes: an airflow channel defining a passage path for air to pass through the photoheater and into the aerosol-generating article; The optical heater is at least partially exposed in the air flow channel; and / or, the optical heater is located upstream of the aerosol generating article; And / or, during inhalation, air flows through at least a portion of the surface of the light heater to partially absorb heat from the surface of the light heater and is heated before being output to the aerosol generating article.

6. The heating device according to claim 1 or 2, characterized in that: The optical heater comprises: A light-transmitting cover surrounding or defining a sealed cavity; The light emitting element is used for emitting light; the light emitting element is located in the cavity and arranged in a non-contact manner with the light-transmitting cover.

7. The heating device according to claim 6, characterized in that The light emitting element is an electroluminescent element.

8. The heating device according to claim 6, characterized in that Also includes: Battery cells, used for power supply; The control circuit is used to control the battery core to provide power to the light-emitting element, so that the light-emitting element emits light at an operating temperature of 450 to 2800°C.

9. The heating device according to claim 8, characterized in that The light emitting element has an operating power of about 20 to 60 W; And / or, the light emitting element has a resistance value of 0.1Ω to 0.6Ω at an operating temperature of 450 to 2800°C; And / or, the proportion of light with a wavelength of 800nm ​​to 1300nm in the light emitted by the light-emitting element is greater than 60% of the total light.

10. The heating device according to claim 7, characterized in that The light emitting element includes tungsten, carbon fiber or an oxide of at least one metal element.

11. The heating device according to claim 6, characterized in that Halogen is sealed in the cavity; And / or, 1×10-6 to 1×10-2 μmol / mm3 of halogen is sealed in the cavity; and / or, the cavity is filled with an inert gas; and / or, the cavity has a vacuum degree; And / or, the pressure in the cavity is less than 0.85 atm.

12. The heating device according to claim 6, characterized in that The transmittance of the light-transmitting cover to the light emitted by the light-emitting element is above 90%; And / or, the light-transmitting cover comprises at least one of quartz, glass, ceramic or mica; And / or, at least one or more collimating lenses are defined on the light-transmitting cover; And / or, at least one protruding structure is arranged on the light-transmitting cover; And / or, at least one heat dissipation portion is arranged on the light-transmitting cover for heat dissipation; And / or, the light-transmitting cover is configured to be substantially spherical.

13. The heating device according to claim 6, characterized in that The light-transmissive cover includes a first portion and a second portion; when the aerosol-generating article is received in the receiving cavity, the first portion faces or is adjacent to the aerosol-generating article, and the second portion faces away from the aerosol-generating article.

14. The heating device according to claim 13, characterized in that The first part and the second part are both curved surfaces or arc surfaces and have opposite bending directions; and / or, the curvature of the first portion is greater than the curvature of the second portion; And / or, the surface of the first part is smooth, and at least one raised heat dissipation portion is arranged on the surface of the second part.

15. The heating device according to claim 6, characterized in that The light-transmitting cover comprises a first part and a second part; The light emitting element is located in the first portion and avoids the second portion; The heating device supports the optical heater by holding the second portion. support.

16. The heating device according to claim 6, characterized in that The light emitting element is configured in the form of a solenoid coil; And / or, the light emitting element has 3 to 8 windings; And / or, the light emitting element has a length of 2 to 5 mm; and / or, the wire material of the light emitting element has a diameter of about 0.05 to 0.4 mm; and / or, the light emitting element is wound with tungsten wire having a purity of more than 99%; And / or, the axis of the light emitting element is perpendicular to the longitudinal direction of the aerosol generating article or the receiving cavity.

17. The heating device according to claim 6, characterized in that The light emitting element is configured in the form of a planar spiral coil; and / or, the light emitting element is substantially planar; And / or, the light emitting element comprises a flat substrate, and a light emitting track or a light emitting coating formed on the substrate; And / or, the diameter of the light emitting element is 4 to 10 mm.

18. The heating device according to claim 1 or 2, characterized in that: Also includes: A light guide is disposed around at least a portion of the light heater for directing a portion of the light emitted by the light heater toward an outer side surface of the aerosol-generating article.

19. The heating device according to claim 18, characterized in that A portion of the light emitted by the photoheater is irradiated to the upstream end of the aerosol, and another portion is guided to the outer surface of the aerosol generating article via the light guide.

20. The heating device according to claim 18, characterized in that The light guide is reflective; And / or, the light guide is configured to guide part of the light emitted by the light heater to the outer surface of the aerosol generating article by reflecting it at least once.

21. The heating device according to claim 18, characterized in that The light guide includes a first light guiding portion surrounding the light heater, and a second portion extending from the first light guiding portion toward the receiving cavity or the aerosol generating article.

22. The heating device according to claim 21, characterized in that The first light guiding portion has a cross-sectional shape that is approximately parabolic; and / or, the optical heater is arranged at or near a focus of a parabolic cross section of the first light guiding portion; And / or, the first light guiding segment has an approximately conical shape.

23. The heating device according to claim 1 or 2, characterized in that: Also includes: Battery cells, used for power supply; A circuit board, used for controlling the battery core to provide power to the light heater; The electronic chamber accommodates the battery core and the circuit board; the electronic chamber is optically isolated from the optical heater to prevent the light emitted by the optical heater from irradiating the battery core and / or the circuit board.

24. The heating device according to claim 6, characterized in that The optical heater further comprises: A conductive lead is electrically connected to the light emitting element to guide current on the light emitting element; the conductive lead at least partially passes through the cavity to the outside of the light-transmitting cover; The sealing material is arranged between the conductive lead and the light-transmitting cover to provide sealing therebetween.

25. The heating device according to claim 24, characterized in that The sealing material comprises a metal that can withstand a temperature of at least 800°C; And / or, the sealing material includes molybdenum, titanium or an alloy containing them.

26. The heating device according to claim 6, characterized in that The light heater and / or the light-transmitting cover are configured as a pin or column or rod or bar extending at least partially within the receiving cavity; when the aerosol generating product is received in the receiving cavity, the light heater and / or the light-transmitting cover are configured to extend into the central hole of the aerosol generating product so that the light-emitting element overlaps with the aerosol generating product in the radial direction.

27. The heating device according to claim 6, characterized in that The light emitting element is located outside the receiving cavity; The light-transmitting cover has an extension portion that at least partially extends into the receiving cavity; when the aerosol generating product is received in the receiving cavity, the extension portion extends into the central hole of the aerosol generating product to guide a portion of the light emitted by the light-emitting element to the inner surface of the aerosol generating product.

28. The heating device according to claim 1 or 2, characterized in that: The optical heater includes at least two light emitting elements that are optically isolated from each other.

29. The heating device according to claim 1 or 2, characterized in that: The optical heater comprises a plurality of light emitting elements arranged discretely or in an array; The plurality of light emitting elements are configured to emit light independently or sequentially to heat different portions of the aerosol generating article independently or sequentially.

30. An aerosol generating system, characterized in that: include: Aerosol-generating products; as well as A heating device as claimed in any one of claims 1 to 29.

31. A light heater for a heating device, characterized in that: include: A light-transmitting cover surrounding or defining a sealed cavity; A light emitting element, used for emitting light; The light emitting element is located in the cavity and is arranged in a non-contact manner with the light-transmitting cover.

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