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

Abstract

The invention provides a heating device, an aerosol generating system and a light heater for the heating device. The heating device is configured to heat an aerosol generating product to generate aerosol, and comprises a receiving cavity for receiving the aerosol generating product; a light heater for emitting light to irradiate the aerosol-generating article so as to heat the aerosol-generating article by the light to generate an aerosol; the light heater is in non-contact with the aerosol-generating article when the aerosol-generating article is received within the receiving cavity. According to the heating device, the light heater and the aerosol generating product emit light to heat the aerosol generating product under the condition of non-contact heat conduction.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of heat-without-combustion aerosol generation, and in particular to a heating device, an aerosol generation system, and a photoheater for the heating device. Background Art

[0002] Smoking articles (eg, cigarettes, cigars, etc.) burn tobacco during use to produce tobacco smoke. People have attempted to replace these tobacco-burning articles by creating products that release compounds without combustion.

[0003] Examples of such products are heating devices that release compounds by heating rather than burning a material. For example, the material may be tobacco or other non-tobacco products that may or may not contain nicotine. Known heating devices heat tobacco or other non-tobacco products by contact heat transfer at temperatures of about 250°C to 500°C. Summary of the invention

[0004] One embodiment of the present application provides a heating device, which is configured to heat an aerosol-generating article to generate an aerosol; comprising:

[0005] a receiving chamber for receiving the aerosol generating product;

[0006] The optical heater is used to emit light to irradiate the aerosol generating product, so as to heat 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.

[0007] In some embodiments, the light heater is configured to be substantially a point light source, a line light source, or a surface light source;

[0008] And / or, the light heater is configured substantially in the form of a light bulb, a light tube or a light panel.

[0009] In some embodiments, the photo 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 photo heater and the receiving cavity, thereby making the photo heater non-contact with the aerosol generating product.

[0010] In some embodiments, the first spacing is 2-10 mm.

[0011] In some embodiments, it also includes:

[0012] an airflow channel defining a passage path for air to pass through the photoheater and into the aerosol-generating article;

[0013] The optical heater is at least partially exposed in the air flow channel;

[0014] and / or, the optical heater is located upstream of the aerosol generating article;

[0015] 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.

[0016] In some embodiments, the photoheater comprises:

[0017] A light-transmitting cover surrounding or defining a sealed cavity;

[0018] 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.

[0019] Or in an embodiment, the optical heater comprises:

[0020] A light-transmitting cover surrounding or defining a sealed cavity;

[0021] 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.

[0022] In some embodiments, the light emitting element is an electroluminescent element.

[0023] In some embodiments, it also includes:

[0024] Battery cells, used for power supply;

[0025] 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.

[0026] In some embodiments, the light emitting element has an operating power of about 20 to 60 W;

[0027] 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;

[0028] 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.

[0029] In some embodiments, the light emitting element includes tungsten, carbon fiber, or an oxide of at least one metal element.

[0030] In some embodiments, a halogen is enclosed in the cavity;

[0031] And / or, the cavity is enclosed with 1×10 -6 ~1×10 -2 μmol / mm 3 of halogen;

[0032] and / or, the cavity is filled with an inert gas;

[0033] and / or, the cavity has a vacuum degree;

[0034] And / or, the pressure in the cavity is less than 0.85 atm.

[0035] In some embodiments, the light-transmitting cover has a transmittance of more than 90% to the light emitted by the light-emitting element;

[0036] And / or, the light-transmitting cover comprises at least one of quartz, glass, ceramic or mica;

[0037] And / or, at least one or more collimating lenses are defined on the light-transmitting cover;

[0038] And / or, at least one protruding structure is arranged on the light-transmitting cover;

[0039] And / or, at least one heat dissipation portion is arranged on the light-transmitting cover for heat dissipation;

[0040] And / or, the light-transmitting cover is configured to be substantially spherical.

[0041] In some embodiments, 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.

[0042] In some embodiments, the first portion and the second portion are both curved surfaces or arc surfaces and have opposite bending directions;

[0043] and / or, the curvature of the first portion is greater than the curvature of the second portion;

[0044] 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.

[0045] In some embodiments, the light-transmitting cover includes a first portion and a second portion;

[0046] The light emitting element is located in the first portion and avoids the second portion;

[0047] The heating device supports the optical heater by holding the second part.

[0048] In some embodiments, the light emitting element is configured in the form of a solenoid coil;

[0049] And / or, the light emitting element has 3 to 8 windings;

[0050] And / or, the light emitting element has a length of 2 to 5 mm;

[0051] and / or, the wire material of the light emitting element has a diameter of about 0.05 to 0.4 mm;

[0052] and / or, the light emitting element is wound with tungsten wire having a purity of more than 99%;

[0053] And / or, the axis of the light emitting element is perpendicular to the longitudinal direction of the aerosol generating article or the receiving cavity.

[0054] In some embodiments, the light emitting element is configured in the form of a planar spiral coil;

[0055] and / or, the light emitting element is substantially planar;

[0056] And / or, the light emitting element comprises a flat substrate, and a light emitting track or a light emitting coating formed on the substrate;

[0057] And / or, the diameter of the light emitting element is 4 to 10 mm.

[0058] In some embodiments, it also includes:

[0059] 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.

[0060] In some embodiments, part of the light emitted by the optical heating element is irradiated to the upstream end of the aerosol, and another part is guided to the outer surface of the aerosol-generating article via the light guide.

[0061] In some embodiments, the light guide is reflective;

[0062] 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.

[0063] 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.

[0064] In some embodiments, the first light guiding segment has a cross-sectional shape that is approximately parabolic;

[0065] and / or, the optical heater is arranged at or near a focus of a parabolic cross section of the first light guiding portion;

[0066] And / or, the first light guiding segment has an approximately conical shape.

[0067] In some embodiments, it also includes:

[0068] Battery cells, used for power supply;

[0069] A circuit board, used for controlling the battery core to provide power to the light-emitting element;

[0070] 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.

[0071] In some embodiments, the optical heater further comprises:

[0072] 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;

[0073] The sealing material is arranged between the conductive lead and the light-transmitting cover to provide sealing therebetween.

[0074] In some embodiments, the sealing material comprises a metal that can withstand a temperature of at least 800°C;

[0075] And / or, the sealing material includes molybdenum, titanium or an alloy containing them.

[0076] 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 product 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 product so that the light-emitting element overlaps with the aerosol generating product in the radial direction.

[0077] In some embodiments, the light emitting element is located outside the receiving cavity;

[0078] 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.

[0079] In some embodiments, the light heater includes at least two light emitting elements that are optically isolated from each other.

[0080] In some embodiments, the light heater includes a plurality of light emitting elements arranged discretely or in an array;

[0081] 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.

[0082] Another embodiment of the present application further provides an aerosol generating system, comprising:

[0083] Aerosol-generating articles; and

[0084] The heating device described above.

[0085] Another embodiment of the present application further provides a light heater for a heating device, comprising:

[0086] A light-transmitting cover surrounding or defining a sealed cavity;

[0087] 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.

[0088] Another embodiment of the present application further provides an aerosol generating system, comprising:

[0089] A liquid storage chamber, used for storing a liquid aerosol generating matrix;

[0090] A photoheater for generating an aerosol by photoheating a liquid aerosol-generating substrate.

[0091] The above heating device heats the aerosol generating product by emitting light without contacting the aerosol generating product for heat conduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0092] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0093] Figure 1 is a schematic diagram of an aerosol generating system provided by an embodiment;

[0094] Figure 2 yes Figure 1 A schematic cross-sectional view of a medium light heater from one viewing angle;

[0095] Figure 3 is a schematic diagram of an aerosol generating system according to yet another embodiment;

[0096] Figure 4 yes Figure 3 A schematic cross-sectional view of a medium light heater from one viewing angle;

[0097] Figure 5 yes Figure 3 A structural diagram of the medium light heater from another perspective;

[0098] Figure 6 is a schematic diagram of an aerosol generating system according to yet another embodiment;

[0099] Figure 7 is a schematic diagram of an aerosol generating system according to yet another embodiment;

[0100] Figure 8 is a cross-sectional schematic diagram of a light heater according to another embodiment from one viewing angle;

[0101] Fig. 9 yes Figure 8 A structural diagram of the medium light heater from another perspective;

[0102] Fig.10 is a schematic diagram of an aerosol generating system of an embodiment;

[0103] Fig.11 is a schematic diagram of a heating device according to another embodiment;

[0104] Fig.12 is a schematic diagram of an aerosol-generating article according to yet another embodiment;

[0105] Fig.13 Yes Fig.12 Aerosol-generating articles and Fig.11 A schematic diagram of an aerosol generating system of a heating device;

[0106] Fig.14 yes Fig.11 A schematic cross-sectional view of a medium light heater from one viewing angle;

[0107] Fig.15 is a cross-sectional schematic diagram of a light heater according to another embodiment;

[0108] Fig.16 is a cross-sectional schematic diagram of a light heater according to another embodiment;

[0109] Fig.17 is a cross-sectional schematic diagram of a light heater according to another embodiment;

[0110] Fig.18 is a cross-sectional schematic diagram of a light heater according to another embodiment;

[0111] Fig.19 is a cross-sectional schematic diagram of a light heater according to another embodiment;

[0112] Fig. 20 is a cross-sectional schematic diagram of a light heater according to another embodiment;

[0113] Fig.21 is a schematic diagram of an aerosol generating system according to yet another embodiment;

[0114] Fig. 22 is a schematic diagram of a heating device according to another embodiment;

[0115] Fig.23 is a schematic diagram of an aerosol generating article according to another embodiment from one perspective;

[0116] Fig.24 yes Fig.23 A schematic diagram of another perspective of the aerosol generating article;

[0117] Fig.25 Yes Fig.23 Aerosol-generating articles and Fig. 22 A schematic diagram of an aerosol generating system of a heating device;

[0118] Fig.26 is a schematic diagram of a heating device according to another embodiment;

[0119] Fig. 27 is a schematic diagram of a spectrum of infrared light radiated by a light heater measured in an embodiment;

[0120] Fig.28 The figure is a schematic diagram of the infrared absorption spectrum of an aerosol generating substrate when heated by a light heater, measured in one embodiment. DETAILED DESCRIPTION

[0121] In order to facilitate the understanding of the present application, the present application is described in more detail below in conjunction with the accompanying drawings and specific implementation methods.

[0122] One embodiment of the present application provides an aerosol generating system for generating 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.

[0123] Figure 1 A schematic diagram of an aerosol generating system of one embodiment is shown; in this embodiment, the aerosol generating system comprises:

[0124] An aerosol-generating article 1000 includes an aerosol-generating substrate that generates an aerosol when heated;

[0125] The heating device 100 is used to receive the aerosol generating article 100 and heat it to generate an aerosol for the user to inhale.

[0126] In some embodiments, the overall appearance of the aerosol generating article 1000 is a longitudinally elongated cylindrical structure, for example, it is configured to be a cylindrical shape similar to a cigarette. Or in some other variations, the aerosol generating article 1000 may be a longitudinally elongated elliptical cylinder, a square cylinder, a polygonal cylinder, etc. In some embodiments, the appearance of the aerosol generating article 1000 may imitate the appearance of a conventional cigarette that can be ignited and smoked. The aerosol generating article 1000 may have an outer diameter between approximately 5 mm and 12 mm (for example, between approximately 5 mm and 10 mm). And the aerosol generating article 1000 has a total length between approximately 40 mm and 100 mm. In an optional embodiment, the aerosol generating article 1000 has a total length of approximately 45 mm to 55 mm.

[0127] In some embodiments, the aerosol-generating article 1000 includes an aerosol-generating substrate; an aerosol-generating substrate is used to describe a substrate that is capable of releasing volatile compounds when heated, which volatile compounds can form an aerosol. The aerosols described herein can be visible or invisible and can include vapors (e.g., fine particles of a substance that is in a gaseous state and is typically liquid or solid at room temperature) and droplets of gas and condensed vapor. The aerosol-generating substrate can include, for example, one or more of a powder, granules, pellets, fragments, strands, strips, or flakes, which include one or more of dried flowers or fragrant leaves, grass leaves, tobacco leaves, tobacco main veins, expanded tobacco, and homogenized tobacco.

[0128] In some embodiments, the aerosol generating product 1000 may further include a filter mouthpiece for filtering and outputting the aerosol; the filter mouthpiece may generally include a porous material such as cellulose acetate. In some embodiments, when the aerosol generating product 1000 is received in the heating device 100 for heating, the filter mouthpiece is exposed outside the heating device 100, thereby facilitating inhalation by the user.

[0129] according to Figure 1 As shown, the heating device 100 comprises:

[0130] 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 the heating device 100 or removed from the heating device 100 in use;

[0131] Battery cell 140, used for power supply;

[0132] 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 .

[0133] according to Figure 1 As shown, the heating device 100 also includes:

[0134] The support 20 surrounds or defines a receiving cavity 211 for receiving the aerosol generating article 1000;

[0135] The photo heater 30 is electrically connected to the circuit board 130, so that the circuit board 130 can control the power of the battery cell 140 to be provided to the photo heater 30; when the circuit board 130 provides power, the photo heater 30 can radiate light to the aerosol generating product 1000 to heat the aerosol generating product 1000 by light.

[0136] according to Figure 1 As shown, 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 provides stopping by abutting against the stopping structure 22.

[0137] according to Figure 1 As shown, 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 support 20 along the radial direction. In some embodiments, along the radial direction of the receiving cavity 211, there is a gap of about 1 to 5 mm between the aerosol generating article 1000 and the inner surface of the support 20. Figure 1 As shown, a shielding or sealing element 21, such as an O-ring, is further arranged in the bracket 20, and is arranged near the receiving port 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 bracket 20, and on one hand, mainly blocks the light emitted by the light emitter 30, so as to prevent the light from being emitted from between the aerosol generating article 1000 and the inner surface of the bracket 20 to the outside of the receiving port 111. In another aspect, the sealing element 21 clamps or holds the aerosol generating article 1000 in the radial direction.

[0138] according to Figure 1 As shown, the light heater 30 is supported and held by the bracket 20. The light heater 30 is arranged in alignment with the receiving cavity 211 along the longitudinal direction of the heating device 100. Figure 1 As shown in FIG. 1 , the light heater 30 is closer to the distal end 120 than the receiving cavity 211. In use, the light heater 30 emits light toward the proximal end 110 and / or the receiving cavity 211.

[0139] exist Figure 1In the illustrated embodiment, the light heater 30 is configured in the form of a lamp bead; in some optional embodiments, the light heater 30 is substantially a spherical lamp bead. The light heater 30 has a diameter or width dimension of approximately 3 to 7 mm. Alternatively, the light heater 30 can be approximately a point light source.

[0140] according to Figure 1 As shown, when the aerosol generating article 1000 is received in the receiving cavity 211, the light heater 30 is spaced apart from the aerosol generating article 1000. Alternatively, the light heater 30 is in non-contact with the aerosol generating article 1000. Figure 1 In the illustrated embodiment, along the longitudinal direction of the receiving cavity 211, when the aerosol generating article 1000a is received in the receiving cavity, there is a first distance d11 between the light heater 30 and the aerosol generating article 1000, and the first distance d11 is about 2-10 mm. Alternatively, along the longitudinal direction of the receiving cavity 211, there is a first distance d11 between the light heater 30 and the receiving cavity 211.

[0141] In some embodiments, the bracket 20 is rigid; the bracket 20 can be made of rigid ceramics, polymer plastics, metals, etc. Figure 1 As shown, the bracket 20 includes:

[0142] The first support portion 210 and the second support portion 220 are both substantially cylindrical or tubular, and the first support portion 210 is closer to the proximal end 110 than the second support portion 220. The first support portion 210 mainly defines a receiving cavity 211 for accommodating and receiving the aerosol generating article 1000; the second support portion 220 is used to support and hold the light heater 30. And after assembly, the light heater 30 also at least partially extends into the first support portion 210.

[0143] exist Figure 1 In the illustrated embodiment, 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 on the support arm 222 .

[0144] exist Figure 1 In the illustrated embodiment, the heating device 100 is further provided with an air flow channel, which provides a flow path for delivering air to the aerosol generating article 1000 during the user's inhalation. Figure 1Indicated by the middle arrow R1. Specifically, the second support portion 220 is also 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 is connected to the outside atmosphere through a hole and / or an assembly gap on the housing 10, so that during inhalation, the outside air can pass through the housing 10 and enter the second support portion 220 through the air inlet 221. The support arm 222 is also provided with a through hole 223 for air to pass through, so that the air in the second support portion 220 can enter the aerosol generating article 1000 of the first support portion 210.

[0145] exist Figure 1 In the illustrated embodiment, at least part of the surface of the light heater 30 is exposed in the airflow channel; and 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 inhalation, air at least partially flows through the light heater 30 to partially absorb the heat on the surface of the light heater 30 and then deliver it to the aerosol generating article 1000, so that the aerosol generating article 1000 is assisted by hot air while being heated by light. The terms 'upstream' and 'downstream' are used with respect to the relative direction in which the user inhales the aerosol generating article 1000 during its use. Downstream can be the direction close to the user's inhalation, and upstream is the direction away from the user accordingly; and upstream is the direction in which air enters, and downstream is the direction in which air flows out.

[0146] exist Figure 1 In the illustrated embodiment, the second support portion 220 is further provided with:

[0147] The receiving wall 230 is arranged perpendicular to the axial direction of the second supporting portion 220 and away from the first supporting portion 210. The receiving wall 230 is used to receive debris, condensate, etc. dropped from the aerosol generating product 1000. The second supporting portion 220 further includes a tubular extension portion 231 extending radially outward, and the conductive lead of the optical heater 30 passes through the tubular extension portion 231 and is electrically connected to the circuit board 130.

[0148] During use, the entire support 20 or the first support portion 210 or the second support portion 220 can be disassembled separately, which is beneficial for users to clean residues therefrom.

[0149] according to Figure 1 As shown, the light emitted by the light heater 30 is substantially similar to a point light source, and a part of the light is as shown in FIG. Figure 1 As shown by the arrow R2 in the middle, the light directly irradiated or radiated to the upstream end of the aerosol generating article 1000 is absorbed by the aerosol generating article 1000; another part of the light is as shown in FIG. Figure 1As indicated by the middle arrow R3 , the radiation is irradiated onto the inner surface of the first supporting portion 210 and then reflected onto the peripheral surface of the aerosol generating article 1000 and absorbed by the aerosol generating article 1000 .

[0150] According to Figure 1 As shown, at least part of the inner surface of the first support portion 210 is arranged obliquely, which is advantageous for reflecting and forming the light path shown by arrow R3. Or in a more specific embodiment, the inner surface of the first support portion 210, which is radially opposite to the aerosol generating article 1000, is inclined. Or in a more specific embodiment, at least part of the inner diameter of the first support portion 210 decreases toward the direction close to the proximal end 110 and / or the receiving port 111, which is advantageous for reflecting and forming the light path shown by arrow R3.

[0151] In some embodiments, at least a portion of the inner surface of the support 20 and / or the first support portion 210 is reflective, so as to reflect light irradiated to the support 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 support 20 and / or the first support portion 210 can be formed by spraying a reflective coating or film, etc. The reflective coating or film can include metals such as silver, aluminum, tin, stainless steel, etc.

[0152] according to Figure 1 and Figure 2 As shown, the optical heater 30 of this embodiment includes:

[0153] 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 inside the light-transmitting cover 31;

[0154] The light emitting element 32 is located in the cavity 33; the light emitting element 32 is in non-contact with the light-transmitting cover 31, and the light emitting element 32 is held or welded between the first conductive lead 341 and the second conductive lead 342, and the first conductive lead 341 and the second conductive lead 342 support and guide the current. The first conductive lead 341 and the second conductive lead 342 pass through the cavity 33 to the light-transmitting cover 31, and then are electrically connected to the circuit board 130.

[0155] exist Figure 1 and Figure 2In the illustrated embodiment, the light-emitting element 32 is an electroluminescent light-emitting 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 diameter of the first conductive lead 341 and the second conductive lead 342 is greater than the diameter of the wire material of the light-emitting element 32. In some specific embodiments, the axis of the light-emitting element 32 in the form of a solenoid coil is perpendicular to the longitudinal direction of the aerosol-generating article 1000 and / or the receiving cavity 211. In some specific embodiments, the light-emitting element 32 in the form of a solenoid coil has about 3 to 8 windings and a length of about 2 to 5 mm. And the wire material of the light-emitting element 32 has a diameter of about 0.05 to 0.4 mm.

[0156] In some embodiments, the wire material of the light emitting element 32 may include tungsten wire, carbon fiber wire or tin oxide wire. Or in some other embodiments, the wire material of the light emitting element 32 is composed of oxides of at least one metal element such as Mg, Al, Ti, Zr, Mn, Fe, Co, Ni, Cu, Cr, Zn, etc. Or in some other embodiments, the wire material of the light emitting element 32 may include a luminous metal or alloy, such as Fe-Mn-Cu alloy. In a specific embodiment, the light emitting element 32 is a tungsten wire; or, the light emitting element 32 is composed of a tungsten wire with a purity of more than 99%.

[0157] Accordingly, the first conductive lead 341 and the second conductive lead 342 may be made of silver, copper, gold, or alloys thereof.

[0158] In some embodiments, the light-transmitting cover 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-transmitting cover 31 made of quartz has a transmittance of more than 90% to the light emitted by the light-emitting element 32; in a more preferred embodiment, the light-transmitting cover 31 made of high-purity quartz has a transmittance of more than 95% to the light emitted by the light-emitting element 32.

[0159] In some embodiments, the light emitting element 32 can be powered by the circuit board 130 and then generate heat through resistive Joule heat, and emit 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 range of light waves emitted is beneficial for heating the aerosol generating substrate. Or in a more preferred specific embodiment, the light emitting element 32 can emit light at an operating temperature of 2000 to 2500°C, and the range of light waves emitted is beneficial for heating the aerosol generating substrate. In some specific embodiments, the operating temperature of the light emitting element 32 is 2000 to 2500°C.

[0160] Fig. 27 The spectrum of light emitted by the light emitting element 32 at about 2300° C. in one embodiment is shown; the wavelength range 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. And, 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% of the total light. Or 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% of the total light, which is beneficial for heating the aerosol generating article 1000.

[0161] 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 the heat from the light emitting element 32 and thus has a temperature of 300-600°C; when the light-transmitting cover 31 reaches the temperature of 300-600°C, it can also emit infrared light of a larger wavelength to supplement or assist in heating the aerosol generating product 1000. Thus, the aerosol generating matrix of the aerosol generating product 1000 can be simultaneously excited and heated by the light emitted by the light-transmitting cover 31 after being heated, and can be excited by the light emitted by the light emitting element 32 in a staggered manner, which is more advantageous in terms of heating effect.

[0162] For example Fig.28 FIG. 1 shows a schematic diagram of an infrared absorption spectrum of an aerosol-generating substrate of an aerosol-generating article 1000 when heated by a light heater 30, measured in one embodiment; Fig.28As shown in , the aerosol generating matrix has approximately a first absorption peak S1 and a second absorption peak S2 for light absorption. Furthermore, in light heating, the aerosol generating matrix of the aerosol generating product 1000 can be matched, excited and heated by the light of the second absorption peak S2, and can be dislocated and excited and heated by the light of the first absorption peak S1. Among them, the light of the second absorption peak S2 is mainly the infrared light radiated by the light-transmitting cover 31 when it reaches 300 to 600°C, and resonates and excites with the tobacco components and aroma substance molecules on the surface of the aerosol generating matrix of the aerosol generating product 1000, thereby forming heating. And, the light of the first absorption peak S1 is mainly derived from the light emitted by the light-emitting element 32 at an operating temperature of 1500 to 2800°C, with a relatively shorter wavelength (inversely related to the wave number), so it has high penetration to penetrate into the tobacco components inside the aerosol generating product 1000 and decompose them to generate aerosols through thermal effects, that is, dislocation excitation.

[0163] In some embodiments, the output voltage of the battery cell 140 can be about 3.7V to 4.5V. When the light emitting element 32 is at an operating temperature of 1500 to 2800°C, it has a resistance value of about 0.1Ω to 0.6Ω. In operation, the light emitting element 32 has an operating power of about 20 to 60W. In addition, the light emitting element 32 has a positive resistance temperature coefficient, so that the control circuit can determine the temperature of the light emitting element 32 by measuring the resistance of the light emitting element 32 during use.

[0164] In some embodiments, the cavity 33 of the light-transmitting cover 31 is filled with halogen, such as iodine vapor. In some specific embodiments, the cavity 33 is filled with 1×10 -6 ~1×10 -2 μmol / mm 3 Or in some embodiments, the cavity 33 of the light-transmitting cover 31 is filled with an inert gas, such as argon or helium.

[0165] Or 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.

[0166] according to Figure 2 As shown, the light-transmitting cover 31 includes a first portion 311 and a second portion 312; after assembly, the first portion 311 is located in the first supporting portion 210, and the second portion 312 is located in the second supporting portion 220. After assembly, the light-transmitting cover 31 is supported by the supporting arm 222 clamped and supported between the first portion 311 and the second portion 312.

[0167] exist Figure 2In the illustrated embodiment, the first portion 311 and the second portion 312 are both curved surfaces or arc surfaces, and have opposite curvature directions; the first portion 311 has a greater curvature than the second portion 312. The second portion 312 is provided with a heat dissipation portion 313, which may be, for example, a heat dissipation fin extending outward from the surface of the second portion 312, for dissipating 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 not removable or separable.

[0168] Or in some other embodiments, the second portion 312 is reflective. For example, a reflective coating such as silver, mercury, aluminum, etc. is formed on the outer surface of the second portion 312 by spraying or deposition. Furthermore, the second portion 312 is used to reflect the light emitted by the light emitting element 32 toward the first portion 311 to improve the efficiency of light utilization. In some embodiments, the second portion 312 has a cross-sectional shape of approximately a parabola, which is advantageous for reflecting the light emitted by the light emitting element 32 toward the first portion 311.

[0169] Figure 3 A schematic diagram of an aerosol generating system of yet another embodiment is shown; in this embodiment, the aerosol generating system comprises:

[0170] Aerosol generating article 1000a;

[0171] A heating device 100a is used to receive an aerosol-generating article 1000a and heat it to generate an aerosol. In this embodiment, the heating device 100a comprises:

[0172] The housing 10a is provided with a receiving opening 111a at the proximal end 110a for allowing the aerosol generating article 1000a to be removably received in the heating device 100a through the receiving opening 111a;

[0173] Battery cell 140a and circuit board 130a;

[0174] The support 20a is generally configured to be cylindrical and extends in the longitudinal direction of the housing 10a. A receiving cavity 211a is defined in the support 20a for accommodating and receiving the aerosol generating product 1000a. The diameter of the receiving cavity 211a is larger than the diameter of the aerosol generating product 1000a, so that when the aerosol generating product 1000a is received in the receiving cavity 211a, there is a distance between the support 20a and the aerosol generating product 1000a.

[0175] A stop structure 22a, such as a protrusion or abutment step arranged on the inner wall of the support 20a, for providing the upstream end of the aerosol generating article 1000a with abutment against the stop structure 22a to provide a stop;

[0176] The sealing element 21a elastically abuts between the aerosol generating article 1000a and the inner surface of the support 20a; the sealing element 21a is arranged close to the receiving port 111a to block the light emitted by the light emitter 30a to prevent the light from being emitted from between the aerosol generating article 1000a and the inner surface of the support 20a to the outside of the receiving port 111a;

[0177] The air inlet 221a is arranged near the distal end 120a to provide air to enter the support 20a during suction.

[0178] according to Figures 3 to 5 As shown, the heating device 100a also includes:

[0179] The light heater 30a is used to emit light to the aerosol generating article 1000a, so as to heat the aerosol generating article 1000a. In this embodiment, the light heater 30a is in a longitudinal shape rather than a spherical lamp bead shape. 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.

[0180] In this embodiment, the light heater 30a comprises:

[0181] The light-transmitting cover 31a is made of heat-resistant light-transmitting materials such as quartz, glass or ceramics; the light-transmitting cover 31a includes a first part 311a and a second part 312a arranged in sequence along the longitudinal direction; a cavity 33a is arranged in the first part 311a;

[0182] The light-emitting element 32a is arranged in the cavity 33a and is used for emitting light. The light-emitting element 32a is made of luminescent materials such as tungsten wire, carbon fiber wire, tin oxide wire, etc., and is then powered by the circuit board 130a to generate resistance Joule heat and emit light with a wavelength of 200nm to 3500nm at an operating temperature of 450 to 2800°C. More preferably, the light-emitting element 32a can emit light at an operating temperature of 800 to 2500°C. More preferably, the light-emitting element 32a can emit light at an operating temperature of 1300 to 2500°C. In this embodiment, the light-emitting element 32a is also configured in the form of a solenoid coil formed by a wire material. The light-emitting element 32a in the form of a solenoid coil has about 3 to 8 windings and a length of about 2 to 5 mm. In this embodiment, the axis of the light-emitting element 32a in the form of a solenoid coil 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 penetrated to the outside of the light-transmitting cover 31a through the first conductive lead 341a and the second conductive lead 342a welded together, and then connected to the circuit board 130a to supply power to the light emitting element 32a.

[0183] exist Figures 3 to 5As shown, the light-transmitting cover 31a is basically cylindrical. For example, the first part 311a is cylindrical, and the cylindrical outer surface is advantageous for allowing the emitted light to irradiate outward at a wide angle. And, the second part 312a is non-cylindrical, for example Figures 3 to 5 In the installation and fixing, the bracket 20a and / or the heating device 100a is advantageously mounted in the heating device 100a by holding or supporting the second portion 312a. The width dimension of the second portion 312a is smaller than the diameter of the first portion 311a.

[0184] exist Figures 3 to 5 As shown, the first conductive lead 341a and the second conductive lead 342a pass through the second part 312a from the cavity 33a 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 arranged in the second part 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 to prevent the first conductive lead 341a and the second conductive lead 342a from generating a gap with the second part 312a to destroy the airtightness in the light-transmitting cover 31a.

[0185] In some embodiments, the first sealing material 351a and the second sealing material 352a are 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 welding is performed 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 to form a seal.

[0186] 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 halogen, such as iodine vapor; or in some other embodiments, the cavity 33a of the light-transmitting cover 31a is filled with inert gas; or in some other embodiments, the pressure of the cavity 33a of the light-transmitting cover 31a is lower than the pressure outside the light-transmitting cover 31a, that is, the cavity 33a has a vacuum degree. For example, the pressure of the cavity 33a of the light-transmitting cover 31a is less than 0.85atm.

[0187] exist Figures 3 to 5As shown, at least one protrusion 3111a is arranged on the end of the first part 311a of the light-transmitting cover 31a away from the second part 312a. In some embodiments, the protrusion 3111a is a production-residual feature formed by hot melting at the position after the needle of the inflation device or vacuum device penetrates the light-transmitting cover 31a, vacuums or injects gas into the cavity 33a, and then pulls out the needle.

[0188] according to Figure 3 As shown, the light heater 30a is also substantially similar to a point light source, and the light emitted is substantially radiated radially outward with the light emitting element 32a as the center. During heating, part of the light emitted by the light heater 30a directly irradiates the upstream end of the aerosol generating product 1000a, and another part irradiates the inner surface of the support 20a and is then reflected to the outer surface of the aerosol generating product 1000a, thereby heating the aerosol generating product 1000a.

[0189] according to Figure 3 As shown, the light heater 30a is non-contact with the aerosol generating article 1000a, and thus the light heater 30a does not heat the aerosol generating article 1000a by contact heat conduction. Figure 3 As shown, along the longitudinal direction of the receiving cavity, when the aerosol generating article 1000a is received in the receiving cavity, there is a first distance d11 between the light heater 30a and the aerosol generating article 1000a; the first distance d11 is about 2-10 mm.

[0190] Figure 6 A schematic diagram of an aerosol generating system according to another embodiment is shown, in which a heating device 100b of the aerosol generating system comprises:

[0191] The support 20b surrounds or defines a receiving cavity for receiving and containing the aerosol generating article 1000b;

[0192] The light heater 30b is used to heat the aerosol generating product 1000b by emitting light to the aerosol generating product 1000b; and in this embodiment, the light heater 30b is basically arranged along the longitudinal extension of the bracket 20b and / or the aerosol generating product 1000b, and is spaced from the aerosol generating product 1000b; in this embodiment, the light heater 30b includes a light-transmitting cover 31b, and a light-emitting element 32b located in a cavity 33b of the light-transmitting cover 31b; the light-emitting element 32b is configured in the form of a solenoid coil; the two ends of the light-emitting element 32b are connected to the circuit board 130b after being penetrated to the outside of the light-transmitting cover 31b by welding conductive leads 34b, thereby supplying power to the light-emitting element 32b. The conductive leads 34b and the light-transmitting cover 31b are welded and sealed by a sealing material 35b.

[0193] according to Figure 6 As shown, the heating device 100b also includes:

[0194] The light guide 40b is used to guide part of the light emitted by the light heater 30b during use to the outer surface of the aerosol generating article 1000b. The light guide 40b is configured to be arranged around at least part of the light heater 30b. The light guide 40b mainly guides the light emitted by the light source close to the point light source to the outer surface of the aerosol generating article 1000b by forming reflection. The light guide 40b is located outside the light heater 30b, or the light heater 30b is enclosed in the light guide 40b.

[0195] In an embodiment, the inner surface and / or the outer surface of the light guide 40b is defined by a reflective material. For example, the light guide 40b is made of mercury, silver, aluminum, stainless steel, etc. with a bright surface; or 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 on the substrate.

[0196] In some embodiments, the light emitted by the photo heater 30b, which is a near-point light source, is partially Figure 6 The arrow R2 directly irradiates the upstream end of the aerosol generating article 1000b, as shown in FIG. Figure 6 The light indicated by the middle arrow R4 is guided to the outer surface of the aerosol generating article 1000b after at least one or more reflections via the inner surface of the light guide 40b, which is beneficial for improving the utilization rate of the light emitted by the light heater 30b.

[0197] In some embodiments, the light guide 40b includes a first light guide portion 41b and a second light guide portion 42b, wherein the first light guide portion 41b surrounds the light heater 30b and the second light guide portion 42b extends from the first light guide portion 41b to the outer surface of the aerosol generating article 1000b.

[0198] In some embodiments, the first light guide portion 41b has a cross-sectional shape of approximately a parabola. The light heater 30b is generally arranged at or near the focus (geometric term) of the parabolic cross-section of the first light guide portion 41b, which is beneficial for maximizing the utilization of the light emitted by the light heater 30b.

[0199] In some embodiments, the second light guiding portion 42b is mainly used to further reflect and guide the light reflected from the first light guiding portion 41b toward the proximal end 110 toward the outer surface of the aerosol generating article 1000b, such as Figure 6 In the embodiment, at least a portion of the second light guide portion 42b is in a curved surface configuration.

[0200] or Figure 7 A schematic diagram of an aerosol generating system of yet another embodiment is shown, in which a heating device 100c comprises:

[0201] The light heater 30c heats the aerosol generating product 1000c received in the receiving cavity by light; the light heater 30c is arranged in a longitudinal direction of the receiving cavity and is spaced apart from the receiving cavity, so as to be non-contact with the aerosol generating product 1000c;

[0202] The light guide 40c is arranged around at least a portion of the light heater 30c; the light guide 40c mainly reflects the light emitted by the light heater 30c which is similar to a point light source, so that the light is guided to 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 surrounded by the light guide 40c. In some embodiments, the light emitted by the light heater 30c which is similar to a point light source, such as part of Figure 7 The arrow R2 directly irradiates the upstream end of the aerosol generating article 1000c and the part as shown in FIG. Figure 7 The light emitted by the light heater 30c is guided to the outer surface of the aerosol generating article 1000c after at least one or more reflections on the inner surface of the light guide 40c as shown by the middle arrow R4, which is beneficial for improving the utilization rate of the light emitted by the light heater 30c. In an embodiment, 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.

[0203] exist Figure 7 In the illustrated embodiment, the light guide 40c includes a first light guide portion 41c and a second light guide portion 42c; wherein the first light guide portion 41c surrounds the light heater 30c, and the second light guide portion 42c extends from the first light guide portion 41c to the outer surface of the aerosol generating article 1000c. Figure 7 In the embodiment, the first light guide portion 41c and the second light guide portion 42c are arranged obliquely; the second light guide portion 42c is mainly used to further reflect and guide the light reflected from the first light guide portion 41c toward the proximal end 110c to the outer surface of the aerosol generating article 1000c, such as Figure 7 Middle arrow R4.

[0204] exist Figure 7 In the illustrated embodiment, the first light guide portion 41c and / or the second light guide portion 42c may be in a conical shape. Also, the angle between the first light guide portion 41c and the second light guide portion 42c is an obtuse angle; more preferably, the angle between the first light guide portion 41c and the second light guide portion 42c is between 90° and 135°.

[0205] Figures 8 to 9 A schematic diagram of a light heater 30d of yet another embodiment is shown; in this embodiment, the light heater 30d comprises:

[0206] 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 in a columnar shape. The light-transmitting cover 31d has a sealed cavity 33d therein.

[0207] The light emitting element 32d is arranged in the cavity 33d and is not in contact with the light-transmitting cover 31d; in this embodiment, the light emitting element 32d is configured in the form of a planar spiral coil; the light emitting element 32d is substantially arranged perpendicular to the longitudinal direction of the light heater 30d. In this embodiment, the light emitting element 32d of the planar spiral coil may 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.

[0208] according to Figure 8 and Fig. 9 As shown, the light-transmitting cover 31d has a first end surface 310d, which is substantially a flat surface; and the light-emitting element 32d of the planar spiral coil is substantially arranged parallel to the first end surface 310d. Figure 8 and Fig. 9 As shown, the light-transmitting cover 31d has a first extension portion 311d and a second extension portion 312d extending away from the first end surface 310d in the longitudinal direction; during installation or assembly, the heating device 100d can be combined with the first extension portion 311d and the second extension portion 312d to provide support for the light heater 30d, so that the light heater 30d is stably installed in the heating device 100d.

[0209] according to Figure 8 and Fig. 9 As shown, the two ends of the light-emitting element 32d are connected with a first conductive lead 321d and a 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 part of the first conductive lead 321d and the second conductive lead 322d passing through to the outside of the light-transmitting cover 31d is connected to the circuit board 130d for powering the light-emitting element 32d.

[0210] exist Figure 8 and Fig. 9In the illustrated embodiment, 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.

[0211] Alternatively, in some other embodiments, the light emitting element 32d is formed by printing, depositing, or spraying a slurry containing the above light emitting materials on a flat substrate; or, the light emitting element 32d includes:

[0212] 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 include the above-mentioned light-emitting materials such as tungsten, tin oxide, and carbon fiber; and the substrate may include heat-resistant rigid materials such as quartz, glass, or ceramics. 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 tortuous and extended shape, or a patterned track shape.

[0213] Fig.10 An embodiment is shown including Figure 8 and Fig. 9 Schematic diagram of a heating device 100d; 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 product 1000d and is spaced apart from the aerosol generating product 1000d. The light emitted by the light-emitting element 32d is mostly irradiated from the first end surface 310d to the upstream end surface of the aerosol generating product 1000d, for example Fig.10 As shown by the arrow R2.

[0214] or Figures 11 to 13 A schematic diagram of an aerosol generating system according to another embodiment is shown; in this embodiment, a heating device 100e of the aerosol generating system comprises:

[0215] a receiving opening 111e and a receiving cavity 24e for removably receiving an aerosol-generating article 1000e;

[0216] The optical heater 30e is configured to be in the shape of a pin, a column, a rod, a stick, etc., which at least partially extends from the base 20e into the receiving cavity 24e.

[0217] In this embodiment, the aerosol-generating article 1000e comprises at least:

[0218] 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 wrapped and restricted by an outer wrapper 1140e.

[0219] The filter element 1110e is used to filter the aerosol before it is delivered to the user. Fig.12 In the embodiment shown in FIG. 1 , the filter element 1110e comprises a conventional cellulose acetate or polypropylene tow filter of low filtration efficiency. The outer wrapper 1140e is conventional cigarette paper, fibrous material, organic polymer, or the like.

[0220] Aerosol generating substrate 1200e, near the upstream end; Aerosol generating substrate 1200e is used to describe a substrate capable of releasing volatile compounds when heated, which can form an aerosol. The aerosol described here can be visible or invisible, and can include vapor (e.g., fine particles of a substance, which are in a gaseous state, which are usually liquid or solid at room temperature) and droplets of gas and condensed vapor. Aerosol generating substrate 1200e can include, for example, one or more of the following: powder, particles, pellets, fragments, strands, strips or flakes, which contain 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 includes a gathered sheet of wrinkled homogenized tobacco material, which is limited by an outer wrapper 1140e; the gathered sheet of wrinkled homogenized tobacco material includes glycerin as an aerosol forming agent.

[0221] exist Fig.12 In the illustrated embodiment, the aerosol-generating substrate 1200e is substantially annular in shape. The aerosol-generating substrate 1200e defines a mesopore 1130e therein. In some embodiments, the aerosol-generating substrate 1200e has a length of approximately 10-20 mm. And, the mesopore 1130e has a diameter of approximately 3-5 mm.

[0222] according to Fig.13 As shown, 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 middle hole 1130e of the aerosol generating substrate 1200e and emit light to the aerosol generating substrate 1200e to heat the aerosol generating substrate 1200e. Fig.13In the illustrated embodiment, when the light heater 30e extends into the middle hole 1130e of the aerosol generating substrate 1200e for heating, the light heater 30e is non-contact with the inner surface of the aerosol generating substrate 1200e. In some embodiments, the first spacing 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 spacing 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 in the direction of heat transfer through contact. The first spacing d11 is a gap or spacing formed between the aerosol generating substrate 1200e and / or the light heater 30e in the radial direction thereof.

[0223] according to Fig.14 As shown, the optical heater 30e includes:

[0224] The light-transmitting cover 31e is made of a light-transmitting material such as quartz or glass, and is configured to be in the shape of an elongated pin, a column, a rod, or a stick. The light-transmitting cover 31e has a sealed cavity 33e therein.

[0225] 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.

[0226] Or in some other modified embodiments, the light emitting element 32e and the light-transmitting cover 31e may be in contact with each other.

[0227] exist Fig.14 In the illustrated embodiment, 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.

[0228] In some embodiments, the light-transmitting cover 31e has an outer diameter of about 1.5-4 mm; and the light-transmitting cover 31e has a wall thickness of about 0.1-0.5 mm.

[0229] In some embodiments, the light emitting element 32e has a diameter of about 1 to 3 mm; and the light emitting element 32e has a length of about 8 to 15 mm. The light emitting element 32e is made of a light emitting material such as tungsten wire, carbon fiber wire, tin oxide wire, etc., and emits light at an operating temperature of 450 to 2800° C. In this embodiment, the light emitting element 32e has a length, so that the light heater 30e is basically a linear light source. Alternatively, in an embodiment, the light heater 30e is configured as a slender lamp tube.

[0230] or Fig.15A schematic diagram of a light heater 30f of another embodiment is shown, in which the light heater 30f comprises:

[0231] 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.

[0232] or Fig.16 A schematic diagram of a light heater 30g of yet another embodiment is shown, in which the light heater 30g comprises:

[0233] The light-transmitting cover 31f comprises a first portion 311f, a second portion 312f and a third portion 313f which are arranged in sequence along the longitudinal direction and have different outer diameters; wherein the diameter of the second portion 312f is smaller than the diameters of the first portion 311f and the third portion 313f;

[0234] The light emitting element 32g is located in the second portion 312f, and in the longitudinal direction, the light emitting element 32g avoids the first portion 311f and the third portion 313f. When the light heater 30f extends into the aerosol generating substrate 1120f for heating, the first portion 311f and the third portion 313f abut against the inner surface of the aerosol generating substrate 1120f, and a second distance d12 is formed between the second portion 312f and the inner surface of the aerosol generating substrate 1120f.

[0235] or Fig.17 A schematic diagram of a light heater 30h of another embodiment is shown, in which the light heater 30h comprises:

[0236] The light-transmitting cover 31h and the light-emitting element 32h located in the light-transmitting cover 31h. In this embodiment, at least one or more protruding structures 311h are arranged on the outer surface of the light-transmitting cover 31h. The protruding structures 311h can be in an arc shape, which is equivalent to arranging at least one or more collimating lenses (optical device term) on the outer surface of the light-transmitting cover 31h, which can be used to form an optical effect similar to a collimating lens on the outer surface of the light-transmitting cover 31h, so as to improve the utilization of uniform light.

[0237] or Fig.18A schematic diagram of a light heater 30j of another variant embodiment is shown; in this embodiment, the light-transmitting cover 31j has a protrusion 311j that is approximately spherical at the front end. In some embodiments, the protrusion 311j is a production legacy feature formed by hot melting at this part after the needle of the inflation device or vacuum device penetrates the light-transmitting cover 31j, vacuums the cavity 33j or injects gas, and then pulls out the needle. Or in some other embodiments, the protrusion 311j is an artistic design for visual aesthetics. Or in some other embodiments, making the front end of the light-transmitting cover 31j smaller is beneficial for allowing the light-transmitting cover 31j to extend from the front end into the annular aerosol generating matrix 1120f.

[0238] or Fig.19 A schematic diagram of a light heater 31k of another variant embodiment is shown. In this embodiment, the light heater 30k includes:

[0239] The substrate 31k comprises a first portion 311k, a second portion 312k and a third portion 313k having different outer diameters arranged in sequence along the longitudinal direction; wherein the diameter of the second portion 312k is smaller than the diameters of the first portion 311k and the third portion 313k; and further, when the light heater 30k is inserted into the aerosol generating substrate 1120f for heating, the first portion 311k and the third portion 313fk abut against the inner surface of the aerosol generating substrate 1120f, and a second distance d12 is formed between the second portion 312k and the inner surface of the aerosol generating substrate 1120f;

[0240] The light emitting element 32k is used for emitting light. The light emitting element 32k is formed or combined with the second portion 312k of the substrate 31k and avoids the first portion 311k and the third portion 313k. The light emitting element 32k is, for example, a light emitting track or a light emitting coating formed on the second portion 312k by spraying, deposition or printing.

[0241] or Fig. 20 A schematic diagram showing a light heater 30m of yet another embodiment is shown. Fig.21 A schematic diagram of a heating device 100m including the optical heater 30m is shown; in this embodiment, the optical heater 30m includes:

[0242] 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 has a sealed cavity 33m therein. The light-transmitting cover 31m has a first extension portion 311m and a second extension portion 312m extending along the longitudinal direction toward the end and terminating at the end. During installation or assembly, the heating device 100m can be combined with the first extension portion 311m and the second extension portion 312m to provide support for the light heater 30m, so that the light heater 30m is stably installed in the heating device 100m.

[0243] The light emitting element 32d is arranged in the cavity 33m and is not in contact with the light-transmitting cover 31m; in this embodiment, the light emitting element 32m is configured in the form of a planar spiral coil; the light emitting element 32m is basically arranged perpendicular to the longitudinal direction of the light heater 30m. In this embodiment, the diameter of the light emitting element 32m of the planar spiral coil is 4 to 10 mm. The first conductive lead 321m and the second conductive lead 322m connected to the two ends of the light emitting element 32m are respectively passed through the first extension part 311m and the second extension part 312m to the outside of the light-transmitting cover 31d, thereby facilitating connection with the circuit board 130m.

[0244] according to Fig. 20 and Fig.21 As shown, the light-transmitting cover 31m has an elongated third extension portion 313m extending toward the front end and terminating at the front end; the third extension portion 313m is hollow, and the hollowness of the third extension portion 313m is connected to the cavity 33m. When the aerosol generating product 1000m is received in the heating device 100m, the light-emitting element 32m is located outside the aerosol generating matrix 1200m of the aerosol generating product 1000m; and the third extension portion 313m extends into the aerosol generating matrix 1200m of the aerosol generating product 1000m. Furthermore, in use, a part of the light emitted by the light-emitting element 32m is as follows Fig.21 The arrow R2 in the middle directly irradiates the upstream end face of the aerosol generating substrate 1200m, and the other part is as shown in FIG. Fig.21 As shown by the middle arrow R5, the light passes through the third extension portion 313m and then radiates to the inner surface of the aerosol generating substrate 1200m; radiating light from the inner surface and the upstream end face of the aerosol generating substrate 1200m simultaneously for heating is beneficial for uniform heating.

[0245] or Figure 22 to Figure 25 A schematic diagram of an aerosol generating system of a heating device 100n and an aerosol generating article 1000n according to another embodiment is shown. In this embodiment, the aerosol generating article 1000n is in sheet form. The aerosol generating article 1000n is a laminated structure including a plurality of layers. The aerosol generating article 1000n includes:

[0246] Base layer 1100n, support layer 1300n, and aerosol-generating substrate 1200n. Aerosol-generating substrate 1200n is mainly heated to generate aerosol.

[0247] In some embodiments, the base layer 1100n can be generally 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.

[0248] In some embodiments, the support layer 1300n is bonded to the base layer 1100n. The support layer 1300n is used to improve the mechanical strength of the aerosol generating article 1000n; in some embodiments, the support layer 1300n includes paper. Alternatively, the support layer 1300n includes a fiber layer; the support layer 1300n includes fiber paper made of wood fiber, hemp fiber or flax fiber, bamboo fiber, etc. In this embodiment, a plurality of discretely arranged receiving cavities 1310n are surrounded or arranged on the support layer 1300n; the aerosol generating substrate 1200n includes a plurality of substrate units discretely arranged in the receiving cavities 1310n.

[0249] In some embodiments, the plurality of discrete substrate units of the aerosol-generating substrate 1200n can be heated independently in sequence to generate an aerosol. The surfaces of the plurality of discrete substrate units of the aerosol-generating substrate 1200n have a height difference with the surface of the support layer 1300n; or, 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 concave compared to the surface of the support layer 1300n. According to Fig.24 As shown, the surrounding receiving cavity 1310n is open or opened on one side, thereby forming an output port for outputting aerosol.

[0250] 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.

[0251] according to Fig.23 and Fig.24 As shown, the base layer 1100n further includes an operating portion 1110n protruding in the length direction relative to the support layer 1300n. The operating portion 1110n is operated by a user, for example, by pinching with fingers, so as to receive the aerosol generating product 1000n into the receiving cavity 114n of the heating device 100n or remove it from the receiving cavity 114n; and in use, the operating portion 1110n is not received in the receiving cavity 114n of the heating device 100n, or the operating portion 1110n is exposed outside the receiving cavity 114n of the heating device 100n.

[0252] according to Figure 22 to Figure 25 As shown, the heating device 100n includes:

[0253] The receiving port 113n is arranged on the first side of the heating device 100n;

[0254] The receiving cavity 114n, in use, the user can receive the aerosol generating product 1000n through the receiving port 113n into the receiving cavity 114n by holding the operating portion 1110n, mainly so that 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;

[0255] The stop structure 112n, when the aerosol generating product 1000n is received in the receiving cavity 114n through the receiving port 113n, the aerosol generating product 1000n abuts against the stop structure 112n to form a stop;

[0256] When the aerosol generating article 1000n is received in the receiving chamber 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 chamber 114n during inhalation; and,

[0257] An air outlet 111n, arranged on the second side of the heating device 100n, for outputting aerosol during inhalation;

[0258] The battery cell 140n and the circuit board 130n.

[0259] according to Figure 22 to Figure 25 As shown, the heating device 100n also includes:

[0260] The light heater 30n is adjacent to the receiving cavity 114n or at least partially defines the receiving cavity 114n; when the aerosol generating product 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 product 1000n; thereby heating the substrate unit of the aerosol generating substrate 1200n by radiating light to generate an aerosol.

[0261] 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:

[0262] The light-transmitting cover 31n is at least partially exposed in the receiving cavity 114n or at least partially defines the receiving cavity 114n;

[0263] 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 to the substrate unit of the opposite aerosol generating substrate 1200n, thereby heating the substrate to generate aerosol;

[0264] 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;

[0265] The opaque supporting wall 312n is arranged opposite to the transparent cover 31n, and defines a sealed cavity between them together with the transparent cover 31n, so as to accommodate 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 and the supporting wall 312n. The light-emitting element 32n is made of luminescent materials such as tungsten wire, carbon fiber wire, tin oxide wire, etc., and then emits light at an operating temperature of 450 to 2800°C. When the light-emitting element 32n is working, the transparent cover 31n can absorb or transfer heat from the light-emitting element 32n so that it has a temperature of 300 to 600°C. In a similar embodiment, the cavity is filled with halogen, such as iodine vapor; or in some embodiments, the cavity is filled with an inert gas, such as argon or helium.

[0266] In some embodiments, the circuit board 130n is configured to control several or more light-emitting elements 32n to be heated one after another in a predetermined order. In some embodiments, the circuit board 130n is configured to control several or more light-emitting elements 32n to be heated not simultaneously; so that, for example, when the user draws, the circuit board 130n only controls one light-emitting element 32n to heat and generate an aerosol that satisfies one draw. In some embodiments, in each draw, the circuit board 130n controls several light-emitting elements 32n to heat independently. The amount of total particulate matter (TPM) generated by the substrate 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.

[0267] In some embodiments, the circuit board 130n controls the predetermined order of several light-emitting elements 32n, which are started one after another in sequence. Specifically, for example: when the user takes the first puff, the circuit board 130n provides power to the first light-emitting element 32n closest to the left for heating, generating an aerosol for one puff; when the user takes the next puff, the circuit board 130n provides power to the second light-emitting element 32n closest to the left for heating, generating an aerosol for one puff; and this is performed sequentially until all the light-emitting elements 32n are heated, and the matrix unit of the aerosol generating product 1000n has been puffed, prompting the user to replace the new aerosol generating product 1000n. In the above implementation, starting the light-emitting elements 32n separately in sequence instead of starting the heating at the same time means minimizing the unnecessary consumption of the aerosol generating matrix and reducing the waste of energy. Or in some other implementations, the order in which several light-emitting elements 32n are started in sequence according to a predetermined order is performed along the array arrangement direction. Or in some other implementation variations, the circuit board 130n controls the plurality of light emitting elements 32n to start up individually in sequence, without intervals along the arrangement direction of the light emitting elements 32n. Or in some other implementation variations, the circuit board 130n controls the plurality of light emitting elements 32n to start up individually in sequence, with intervals or in jumps.

[0268] For example, in some embodiments, several or more light-emitting elements 32n can be energized sequentially, that is, they are energized once each time the user draws, so that aerosol is generated consistently based on each draw. Accordingly, in some embodiments, each user's draw action can be sensed by an airflow sensor such as a microphone or a MEMS sensor; the circuit board 130n sequentially energizes several or more light-emitting elements 32n based on the sensing result of the airflow sensor. In a preferred implementation, the circuit board 130n controls several light-emitting elements 32n to start sequentially in a predetermined order, which is performed according to the user's draw action. And in some other variations of the implementation, the circuit board 130n controls the sequential activation of several light-emitting elements 32n, which is performed according to a predetermined interval time; for example, the predetermined interval is between about 30 seconds and 300 seconds.

[0269] When the aerosol generating product 1000n is received in the receiving cavity 114n, the substrate unit of the aerosol generating substrate 1200n faces or approaches the light-transmitting cover 31n, and has a distance from the light-transmitting cover 31n but does not contact the light-transmitting cover 31n. Alternatively, in some specific embodiments, the heating device 100n is configured so that the aerosol generating product 1000n can only be received in the receiving cavity 114n in a predetermined direction, and the predetermined direction makes the substrate unit of the aerosol generating substrate 1200n face or approach the light-transmitting cover 31n.

[0270] In this embodiment, the support wall 312n is used to support and fix the light heater 30n. Also, the support wall 312n is used to isolate the light emitting element 32n from the electronic chamber 150n where the circuit board 130n and the battery cell 140n are located. The light emitting element 32n extends into the electronic chamber 150n and is conductively connected to the circuit board 130n through the soldered conductive lead passing through the support wall 312n, so as to supply power to the light emitting element 32n.

[0271] 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.

[0272] exist Fig.25 In the illustrated embodiment, the surface of the light-transmitting cover 31n facing or adjacent to the receiving cavity 114n is a flat surface.

[0273] or in Fig.26 A schematic diagram of a heating device 100p of another embodiment is shown, in which the surface of the light-transmitting cover 31p of the optical 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 configured 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.

[0274] 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 then 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 unit, thereby selectively changing the heating of the substrate unit of the aerosol generating substrate 1200n.

[0275] Or 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:

[0276] A liquid storage chamber for storing a liquid aerosol generating matrix;

[0277] A liquid conducting element, used for being in fluid communication with the liquid storage chamber, so as to draw in the liquid aerosol to generate the substrate;

[0278] A photoheater is optically coupled to the liquid conducting element to generate an aerosol by optically heating at least a portion of a liquid aerosol-generating substrate within the liquid conducting element.

[0279] In some embodiments, the liquid-conducting element is, for example, a flexible capillary fiber element such as a sponge, natural cotton, etc., or a rigid porous element such as a porous ceramic body, a porous glass body, etc.

[0280] In some embodiments, a photoheater, such as the photoheaters described in the above embodiments, heats the liquid aerosol-generating substrate by emitting light.

[0281] It should be noted that the preferred embodiments of the present application are given in the specification and drawings of the present application, but are not limited to the embodiments described in the specification. Furthermore, it is possible for a person of ordinary skill 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 the present application.

Claims

1. A heating device configured to heat an aerosol-generating article to generate an aerosol; It is 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, It is 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, It is 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, It is characterized in that The first spacing is 2-10 mm.

5. The heating device according to claim 1 or 2, It is 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, It is 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, It is characterized in that The light emitting element is an electroluminescent element.

8. The heating device according to claim 6, It is 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, It is 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, It is 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, It is characterized in that Halogen is sealed in the cavity; And / or, the cavity is enclosed with 1×10 -6 ~1×10 -2 μmol / mm 3 of halogen; 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, It is 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, It is 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, It is 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, It is 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 part.

16. The heating device according to claim 6, It is 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, It is 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, It is 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, It is characterized in that A portion of the light emitted by the optical heating element 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, It is 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, It is 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 18, It is 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, It is 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-emitting element; 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, It is 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, It is 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, It is 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, It is 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, It is 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, It is 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, It is 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, It is 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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