Aerosol generating product and aerosol generating system

Abstract

The invention provides an aerosol generating product and an aerosol generating system. Wherein the aerosol-generating article comprises: an aerosol-generating portion configured to generate an aerosol when heated; the aerosol-generating portion is formed by helically winding a sheet precursor. According to the aerosol-generating product, the formation of the aerosol-generating part by spiral winding is more favorable in aerosol formation and uniform heating.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of heat-not-burn aerosol generation, and in particular to an aerosol generating product and an aerosol generating system. 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] An example of such a product is a heating device that releases a compound 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 tobacco or non-tobacco products are usually provided with a susceptor material arranged inside, so that in use, the tobacco or non-tobacco product can be received in a heating device with an induction coil to form induced heating. For example, Chinese patent application CN110430770A provides details on the arrangement of a sheet-like susceptor with a multilayer structure in a tobacco or non-tobacco product. Summary of the invention

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

[0005] The aerosol generating portion is configured to generate aerosol when heated; the aerosol generating portion is formed by spirally winding a sheet precursor.

[0006] In some embodiments, the aerosol generating portion comprises at least two wound layers spirally wound from a sheet precursor.

[0007] In some embodiments, there are gaps or spacings between adjacent winding layers.

[0008] In some embodiments, the aerosol generating portion has a central hole extending therethrough in the longitudinal direction.

[0009] In some embodiments, the diameter of the mesopore is between 2.3 and 4.0 mm.

[0010] In some embodiments, the wrap layer is fluid permeable.

[0011] In some embodiments, a mesh is arranged on the winding layer.

[0012] In some embodiments, the aerosol generating portion comprises:

[0013] a helically wound substrate layer; and,

[0014] An aerosol generating substrate is formed on or bonded to the base layer and is adapted to be heated to generate an aerosol.

[0015] In some embodiments, the aerosol-generating substrate comprises a number or a plurality of substrate units discretely arranged on the base layer.

[0016] In some embodiments, the aerosol-generating substrate is disposed continuously on the base layer.

[0017] In some embodiments, the base layer is configured to be penetrated by a changing magnetic field to generate heat, thereby heating the aerosol generating substrate.

[0018] In some embodiments, the aerosol-generating substrate is arranged to be heated to generate an aerosol by receiving heat from the base layer.

[0019] In some embodiments, the base layer includes a receptive metal or alloy.

[0020] In some embodiments, the base layer has a thickness of 0.02 to 0.2 mm;

[0021] And / or, the aerosol-generating substrate has a thickness of 0.05 to 1 mm.

[0022] Another embodiment of the present application further provides an aerosol generating system, comprising:

[0023] An aerosol generating article as described above;

[0024] A heating device, comprising:

[0025] a chamber for receiving the aerosol-generating article;

[0026] At least one heater for heating the aerosol generating portion.

[0027] In some embodiments, the heater comprises a plurality of heating elements; when the aerosol-generating article is received in the chamber, the plurality of heating elements are radially opposite to a plurality of longitudinal sections of the aerosol-generating portion, respectively;

[0028] The heating device also includes:

[0029] The circuit is configured to provide power to the plurality of heating elements individually one after another in a predetermined order, so that the plurality of heating elements sequentially heat different sections of the aerosol generating portion one after another in a predetermined order, thereby generating aerosol sufficient for one puff in each heating.

[0030] In the above aerosol generating article 1000, the spirally wound aerosol generating portion 1130 is more advantageous in terms of aerosol formation and uniform heating. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] 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.

[0032] Figure 1 is a schematic diagram of an aerosol generating article provided by an embodiment;

[0033] Figure 2 yes Figure 1 A schematic cross-sectional view of an aerosol generating article from one perspective;

[0034] Figure 3 yes Figure 2 Schematic diagram of another perspective of the aerosol generation part;

[0035] Figure 4 yes Figure 3 A cross-sectional schematic diagram of another perspective of the aerosol generation part;

[0036] Figure 5 yes Figure 3 Schematic diagram of the sheet precursor before winding in the aerosol generation section;

[0037] Figure 6 is a schematic diagram of a sheet precursor before the aerosol generating part is rolled up according to another embodiment;

[0038] Figure 7 is a schematic diagram of an aerosol generating portion of yet another embodiment from yet another perspective;

[0039] Figure 8 yes Figure 7 A cross-sectional schematic diagram of another perspective of the aerosol generation part;

[0040] Fig. 9 is a schematic diagram of an aerosol generating system of an embodiment;

[0041] Fig.10 is a schematic diagram of an aerosol generating system according to yet another embodiment. DETAILED DESCRIPTION

[0042] 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.

[0043] One embodiment of the present application provides a heated aerosol-generating article comprising a plurality of parts assembled in the form of a strip, capable of generating an aerosol when heated.

[0044] For example Figure 1 and Figure 2 is a schematic diagram of an aerosol generating article 1000 according to an embodiment of the present invention. Figure 1 and Figure 2 As shown, the aerosol generating article 1000 includes an upstream end 1100 and a downstream end 1200 opposite to each other; as used herein, the terms 'upstream' and 'downstream' are used to describe the relative positions of parts of the aerosol generating article 1000 with respect to the direction in which the user draws suction on the aerosol generating article 1000 during its use. Downstream can be the direction in which the user draws suction, and upstream is the direction away from the user accordingly; and upstream is the direction in which the external air enters the aerosol generating article 1000, and downstream is the direction in which the air flow containing the aerosol is output from the aerosol generating article 1000. In use, the aerosol generated by heating in the aerosol generating article 1000 passes through the downstream end 1200 and is transported to the user after leaving the aerosol generating article from the downstream end 1200. In use, the user can draw suction on the downstream end 1200 to inhale the aerosol.

[0045] Among them Figure 1 and Figure 2 In the illustrated embodiment, based on the convenience of inhalation by a user, the overall appearance of the aerosol generating article 1000 is a longitudinally elongated cylindrical structure. Alternatively, in some other variant embodiments, the aerosol generating article 1000 may be a longitudinally elongated elliptical cylinder, square cylinder, polygonal cylinder, etc.

[0046] The appearance of the aerosol-generating article 1000 can mimic the appearance of a conventional smokable cigarette. The aerosol-generating article 1000 can have an outer diameter between approximately 5 mm and 12 mm (e.g., 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.

[0047] according to Figure 1 and Figure 2 As shown, the aerosol generating article 1000 includes a plurality of parts arranged coaxially from an upstream end 1100 to a downstream end 1200:

[0048] Aerosol generating part 1130, cooling part 1120 and filtering part 1110. These parts are arranged sequentially and limited by outer wrapper 1140 to form aerosol generating article 1000. Among them:

[0049] Aerosol generating portion 1130, adjacent to and defining upstream end 1100; Aerosol generating portion 1130 is used to describe a substrate capable of releasing volatile compounds upon heating, which volatile compounds can form an aerosol. Aerosols as described herein can be visible or invisible and can include vapors (e.g., fine particles of a substance in a gaseous state that are typically liquid or solid at room temperature) as well as droplets of gas and condensed vapor.

[0050] The cooling portion 1120 is arranged immediately downstream of the aerosol generating portion 1130 and is adjacent to the aerosol generating portion 1130. In use, the cooling portion 1120 is used to provide support for the aerosol generating portion 1130 downstream on the one hand, and on the other hand, the volatile substances released by the aerosol generating portion 1130 after being heated pass along the cooling portion 1120 toward the downstream end 1200 of the aerosol generating article 1000, and the volatile substances can be cooled down in the cooling portion 1120 to form an aerosol inhaled by the user. Figure 2 In the optional embodiment shown in , the cooling portion 1120 includes a cooling cavity 1121 that extends along the length of the cooling portion 1120. By extending the cooling cavity 1121 axially above, the air flow passing through the cooling portion 1120 is in the longitudinal direction without a significant radial deviation. The cooling portion 1120 can function to cool the temperature of the aerosol stream drawn through the cooling portion 1120 by means of heat transfer. The components of the aerosol will interact with the space within the cooling portion 1120 and lose thermal energy. The cooling portion 1120 may include ceramics, metals, or organic polymer plastics, etc. In some embodiments, the temperature of the aerosol stream may decrease by more than 10 degrees Celsius as it is drawn through the cooling portion 1120. In some embodiments, the temperature of the aerosol stream may decrease by more than 25 degrees Celsius or more than 30 degrees Celsius as it is drawn through the cooling portion 1120.

[0051] The filtering section 1110 is disposed immediately downstream of the cooling section 1120 and defines a downstream end 1200 and is adjacent to the cooling section 1120 for filtering the aerosol before delivery to a user. Figure 2 In the embodiment shown in FIG. 1 , the filter portion 1110 includes a conventional cellulose acetate or polypropylene tow filter having low filtration efficiency.

[0052] To assemble the aerosol-generating article 1000, the various parts described above are aligned and tightly wrapped within the outer wrapper 1140. Figure 1 and Figure 2 In the embodiment shown in FIG. 1 , the outer wrapper 1140 is conventional cigarette paper, fibrous material, organic polymer, or the like.

[0053] according to Figure 3 and Figure 4 As shown, the aerosol generating portion 1130 is substantially cylindrical in shape. And, the aerosol generating portion 1130 is a cylindrical shape wound by a sheet precursor. The aerosol generating portion 1130 is spirally wound. In some embodiments, the aerosol generating portion 1130 has a length of about 15 to 40 mm. In some embodiments, the wound aerosol generating portion 1130 substantially has the same outer diameter as the aerosol generating article 1000. The outer diameter of the wound aerosol generating portion 1130 is equal to the inner diameter of the outer wrapper 1140, so that the aerosol generating portion 1130 is tightly attached to the inner wall of the outer wrapper 1140 under the elastic tension formed by the winding, and a friction force is formed between the inner wall surface of the outer wrapper 1140 to prevent the aerosol generating portion 1130 from escaping or falling out of the outer wrapper 1140 in the longitudinal direction.

[0054] according to Figure 3 and Figure 4 As shown, the aerosol generating portion 1130 formed by winding the sheet includes at least two wound layers 1131. In some embodiments, the aerosol generating portion 1130 includes an integer number of wound layers 1131; Figure 3 In the embodiment, the aerosol generating portion 1130 includes three winding layers 1131 spirally wound from the inside to the outside. In some embodiments, the aerosol generating portion 1130 includes an odd number of winding layers 1131, such as three, five, etc. Or in some other variations, the aerosol generating portion 1130 includes a non-integer number of winding layers 1131, such as 2.5 winding layers, etc.

[0055] according to Figures 2 to 4 As shown, there is a gap or spacing 1133 between adjacent winding layers 1131 of the aerosol generating part 1130; and in implementation, the gap or spacing 1133 at least partially defines an airflow channel passing through the aerosol generating part 1130; and during inhalation, the air carries the formed aerosol when passing through the gap or channel aerosol generating part 1130, and then outputs. In some embodiments, the gap or spacing 1133 between adjacent winding layers 1131 is between 0.5 and 3 mm.

[0056] In the above aerosol generating article 1000, the spirally wound aerosol generating portion 1130 is more advantageous in terms of aerosol formation and uniform heating. Specifically, it is more advantageous to uniformly heat the aerosol generating substrate in full contact with the base layer.

[0057] according to Figures 2 to 4As shown, the coiled aerosol generating portion 1130 has a middle hole 1132 that runs through in the longitudinal direction. In some embodiments, the diameter d1 of the middle hole 1132 is greater than 1.8 mm; more preferably, the diameter d1 of the middle hole 1132 is greater than 2.3 mm. The middle hole 1132 at least partially provides a passage for carrying the aerosol out after passing through the aerosol generating portion 1130. In some specific embodiments, the diameter d1 of the middle hole 1132 is between 2.3 and 4.0 mm.

[0058] Figure 5 A schematic diagram of a sheet precursor 2130 wound to form an aerosol generating portion 1130 in one embodiment is shown; Figure 5 As shown, the sheet precursor 2130 includes a plurality of layers stacked or laminated. Alternatively, the sheet precursor 2130 has a laminated structure. Specifically, the sheet precursor 2130 includes:

[0059] Base layer 2131 , an aerosol generating substrate bonded to base layer 2131 in a stacked or laminated manner.

[0060] In some embodiments, the base layer 2131 has a thickness of about 0.02-0.2 mm; in a more preferred embodiment, the base layer 2131 has a thickness of about 0.05-0.1 mm.

[0061] In some embodiments, the substrate layer 2131 is rigid or hard. In some preferred embodiments, the surface of the substrate layer 2131 facing or bonding to the first aerosol generating substrate 2132 and / or the second aerosol generating substrate 2133 is non-smooth; for example, at least one of the surfaces of the first side and / or the second side of the substrate layer 2131 is rough; for example, the surface of the first side and / or the second side of the substrate layer 2131 of the metal or alloy foil is surface-processed by at least one process such as corona, electrochemical etching, indentation, frosting, etc., so as to form a rough surface, such as a frosted surface; the rough surface of the substrate layer 2131 is advantageous for maintaining a close bond with the first aerosol generating substrate 2132 and / or the second aerosol generating substrate 2133, and preventing the substrate layer 2131 and the aerosol generating substrate from moving relative to each other within their bonding surface.

[0062] In some embodiments, the base layer 2131 is a receptive metal or alloy that can be penetrated by a magnetic field and generate heat, such as permalloy, stainless steel, iron-silicon alloy, or iron-aluminum alloy with high magnetic permeability. The base layer 2131 generates heat by being penetrated by a magnetic field, thereby heating the aerosol generating substrate bonded to the base layer 2131 to generate aerosol.

[0063] exist Figure 5In the illustration, the aerosol generating substrates are, for example, a first aerosol generating substrate 2132 formed on a first side of a base layer 2131, and a second aerosol generating substrate 2133 formed or bonded to a second side of the base layer 2131. The first aerosol generating substrate 2132 and the second aerosol generating substrate 2133 generate an aerosol when heated.

[0064] In some embodiments, the first aerosol generating substrate 2132 and / or the second aerosol generating substrate 2133 may be used to refer to a substrate capable of releasing volatile compounds that can form an aerosol. The volatile compounds may be released to generate an aerosol by heating the first aerosol generating substrate 2132 and / or the second aerosol generating substrate 2133. In some typical embodiments, the first aerosol generating substrate 2132 and / or the second aerosol generating substrate 2133 is or may include a solid at room temperature.

[0065] In some embodiments, the first aerosol generating substrate 2132 and / or the second aerosol generating substrate 2133 may include one or more of powders, particles, shredded strips, ribbons or flakes of one or more of herb leaves, tobacco leaves, homogenized tobacco, and expanded tobacco; or, the solid first aerosol generating substrate 2132 and / or the second aerosol generating substrate 2133 may contain additional tobacco or non-tobacco volatile flavor compounds to be released when the substrate is heated.

[0066] In some specific embodiments, the first aerosol generating substrate 2132 and / or the second aerosol generating substrate 2133 may include an active substrate; the active substrate includes or is derived from one or more plant products or components thereof; for example, in some specific embodiments, the active substrate includes leaves, bark, fibrous tissue, stems, roots, petals, fruits, etc. of plants; for example, in a specific embodiment, the active substrate includes or is derived from one or more plant varieties or components, derivatives or extracts thereof, and the plant variety is tobacco. For example, in a specific embodiment, the active substrate includes a mixture of plants such as tobacco and Chinese herbal medicine. The active substrate may include tobacco or tobacco-containing materials; for example, the active substrate may include any of the following: tobacco leaves, tobacco vein segments, reconstituted tobacco, homogenized tobacco, extruded tobacco, tobacco slurry, cast leaf tobacco, and expanded tobacco.

[0067] In some optional embodiments, the first aerosol generating substrate 2132 and / or the second aerosol generating substrate 2133 further include: flavors; the flavors may include volatile flavor components. For example, in a typical embodiment, the flavors may provide a flavor selected from menthol, lemon, vanilla, orange, wintergreen, cherry, and cinnamon; the flavors may include volatile tobacco flavor compounds released from the first aerosol generating substrate 2132 and / or the second aerosol generating substrate 2133 when heated.

[0068] In some optional embodiments, the first aerosol generating substrate 2132 and / or the second aerosol generating substrate 2133 further include: an aerosol former or a smoke generating agent; the aerosol former or a smoke generating agent helps to form a dense and stable aerosol during use. In some specific embodiments, the aerosol former or a smoke generating agent is or includes at least one of glycerol, glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, etc.

[0069] In some optional embodiments, the first aerosol generating matrix 2132 and / or the second aerosol generating matrix 2133 also include: an adhesive; the adhesive promotes the bonding of the components in the first aerosol generating matrix 2132 and / or the second aerosol generating matrix 2133 during use; for example, in some specific embodiments, the adhesive is or includes at least one of gum arabic, casein, dextrin, sodium carboxymethyl cellulose, starch, polyvinyl alcohol, guar gum, etc.

[0070] In some optional embodiments, the first aerosol generating substrate 2132 and / or the second aerosol generating substrate 2133 further include: reinforcing fibers; the fiber strength of the reinforcing fibers is generally higher than the fiber strength of the tobacco plant in the active substrate, thereby enhancing the strength and plasticity of the first aerosol generating substrate 2132 and / or the second aerosol generating substrate 2133 during use. For example, in some specific embodiments, the reinforcing fibers include at least one of coniferous wood fibers, hardwood wood fibers, hemp fibers or flax fibers, bamboo fibers, etc.

[0071] In a specific embodiment, the first aerosol generating matrix 2132 and / or the second aerosol generating matrix 2133 include: 65-90 wt% active substrate, 3-10 wt% reinforcing fiber, 0-5 wt% adhesive, 5-15 wt% flavor, and 10-20 wt% aerosol former or smoke generator.

[0072] Or in another specific embodiment, the first aerosol generating matrix 2132 and / or the second aerosol generating matrix 2133 include: 65-90wt% active substrate, 3-10wt% reinforcing fiber, 0-5wt% adhesive, 5-15wt% flavor, and 15-40wt% aerosol former or smoke generator.

[0073] In some embodiments, the surface density of the first aerosol-generating substrate 2132 and / or the second aerosol-generating substrate 2133 is 20 to 150 g / m 2 .

[0074] In some embodiments, the thickness of the first aerosol-generating substrate 2132 and / or the second aerosol-generating substrate 2133 is 0.1 to 0.6 mm. And in some embodiments, the thickness of the first aerosol-generating substrate 2132 and / or the second aerosol-generating substrate 2133 is greater than the thickness of the base layer 2131 and / or the functional layer 110. Alternatively, the thickness of the first aerosol-generating substrate 2132 and / or the second aerosol-generating substrate 2133 is greater than half the thickness of the aerosol-generating article 100.

[0075] In some embodiments, the water content in the first aerosol-generating substrate 2132 and / or the second aerosol-generating substrate 2133 is 6 to 14 wt %.

[0076] In some embodiments, the thickness of the first aerosol-generating substrate 2132 and / or the second aerosol-generating substrate 2133 is 0.05 to 1 mm.

[0077] exist Figure 5 In the illustrated embodiment, the aerosol-generating substrate is continuously disposed on the surface of the first side or the second side of the sheet precursor 2130. In some embodiments, the aerosol-generating substrate is continuously formed on the sheet precursor 2130 by a process such as casting or rolling.

[0078] or Figure 6 A schematic diagram of a sheet precursor 2130a wound to form an aerosol generating portion 1130 according to another embodiment is shown; Figure 6 As shown, the sheet precursor 2130a includes:

[0079] The base layer 2131a and the aerosol generating substrate 2132a are arranged only on one side of the base layer 2131a. Figure 5 In an embodiment of a double-sided arrangement of an aerosol generating substrate, the Figure 6 The aerosol generating substrate 2132a is arranged only on one side of the base layer 2131a.

[0080] exist Figure 6 In the illustrated embodiment, the aerosol generating substrates 2132a are not arranged continuously; for example, Figure 6In the embodiment, the aerosol-generating substrate 2132a includes a plurality of substrate units discretely or spaced apart on the base layer 2131a; the aerosol-forming portion 1130 formed after winding includes a plurality of substrate units of the aerosol-generating substrate 2132a spaced apart in the axial direction. In some embodiments, a plurality of substrate units of the aerosol-generating substrate 2132a in the aerosol-forming portion 1130 are heated separately and sequentially to generate an aerosol. There is a spacing 2135a between the plurality of substrate units discretely or spaced apart in the aerosol-forming portion 1130, and the spacing 2135a separates adjacent substrate units.

[0081] In some embodiments, the substrate units of the plurality of aerosol-generating substrates 2132a in the aerosol-forming portion 1130 are heated one after another in a predetermined order. In some embodiments, the substrate units of the plurality of aerosol-generating substrates 2132a in the aerosol-forming portion 1130 are not heated at the same time; so that, for example, an aerosol sufficient for one puff is generated in one heating when the user takes a puff. For example, in each puff, the amount of total particulate matter (TPM) generated by heating a single substrate unit 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, or about 1.0 mg to about 5.0 mg.

[0082] In some embodiments, Figure 5 or Figure 6 In the aerosol-forming portion 1130 of the rolled sheet precursor 2130 / 2130a , the rolled layer 1131 is fluid-impermeable.

[0083] For example Figure 7 and Figure 8 A schematic diagram of an aerosol forming part 1130a of another variant embodiment is shown; in this embodiment, the aerosol forming part 1130a includes at least two winding layers 1131a wound by a sheet precursor. In this embodiment, the sheet precursor used to wind the aerosol forming part 1130a is a mesh shape with mesh holes, so that the winding layer 1131a of the aerosol forming part 1130a formed by winding also has a plurality of mesh holes 1134a. Figure 7 and Figure 8 In the embodiment, the winding layer 1131a of the aerosol forming portion 1130a is fluid permeable; the fluid permeable property can help air or aerosol pass through the winding layer 1131a, thereby improving the heat absorption and utilization efficiency of the winding layer 1131a.

[0084] In some embodiments, the mesh 1134a may be in the shape of a circle, a polygon, a triangle, a star, a semicircle, a heart, a cross, a teardrop, or the like.

[0085] Fig. 9 A schematic diagram of an aerosol generating system of one embodiment is shown; in this embodiment the aerosol generating system comprises:

[0086] Aerosol generating articles 1000;

[0087] The heating device 100 is used to receive and heat the aerosol generating article 1000, so that the aerosol generating part 1130 in the aerosol generating article 1000 generates aerosol for the user to inhale. Fig. 9 As shown in FIG. 1 , when the aerosol generating article 1000 is received in the heating device 100, the filter portion 1110 of the aerosol generating article 1000 is exposed outside the heating device 100, which is advantageous for the user to inhale. When the aerosol generating portion 1130 of the aerosol generating article 1000 is consumed, the user can remove the aerosol generating article 1000 from the heating device 100 for replacement.

[0088] according to Fig. 9 In the embodiment shown, the overall appearance of the heating device 100 is roughly configured as a flat cylinder. The structure of the heating device 100 includes:

[0089] The housing 10 is hollow inside, thereby forming an assembly space for necessary functional components such as electronic devices; the housing 10 has a proximal end 110 and a distal end 120 opposite to each other along the length direction;

[0090] a receiving opening 111 located at the proximal end 110; in use, the aerosol generating article 1000 can be at least partially received into the housing 10 through the receiving opening 111, or removed from the housing 10 through the receiving opening 111;

[0091] The support 20 at least partially surrounds or defines a chamber; the chamber is used to receive at least a portion of the aerosol generating article 1000 extending into the housing 10 through the receiving opening 111;

[0092] The air channel 150 is located between the chamber and the air inlet 121; and in use, the air channel 150 provides a channel path from the air inlet 121 into the chamber / aerosol generating article 1000, such as Fig. 9 As shown by the arrow R11.

[0093] In some optional embodiments, the bracket 20 is tubular and the bracket 20 is not removable or fixed or movable in the housing 10 .

[0094] according to Fig. 9 As shown, the heating device 100 further includes:

[0095] A battery cell 130 for power supply;

[0096] A circuit board 140 is provided with a circuit;

[0097] At least one induction coil, such as induction coil 41, induction coil 42, induction coil 43 and induction coil 44; at least one induction coil is arranged around the support 20, and when the aerosol generating article 1000 is received in the chamber, at least one induction coil is arranged around the aerosol generating portion 1130. And at least one induction coil is electrically connected to the circuit board 140, so that the circuit board 140 can provide an alternating current to generate a changing magnetic field to induce the base layer 2131 / 2131a of the aerosol generating portion 1130 to generate heat, thereby heating the aerosol generating substrate to generate aerosol.

[0098] In some embodiments, each induction coil can be individually provided with an alternating current by the circuit board 140 to generate a changing magnetic field, so that in each puff, only one section of the aerosol generating portion 1130 is induced to generate aerosol, rather than all of them generating aerosol at the same time. For example, the circuit board 140 individually provides an alternating current to the induction coil 41 to individually generate a changing magnetic field, so that the section of the aerosol generating portion 1130 surrounded by the induction coil 41 generates aerosol.

[0099] For example, in some other embodiments, the circuit board 140 controls at least one induction coil, such as the induction coil 41, the induction coil 42, the induction coil 43 and the induction coil 44, in a predetermined order to individually activate one of them to generate a magnetic field for heating in each puff.

[0100] or Fig.10 A schematic diagram of an aerosol generating system of a further embodiment is shown, in which the aerosol generating system comprises:

[0101] a chamber having a receiving opening 111a; in use, the aerosol-generating article 1000 can be at least partially received in the chamber through the receiving opening 111a, or removed from the chamber through the receiving opening 111a;

[0102] A battery cell 130a for power supply;

[0103] A circuit board 140a having a circuit arranged thereon;

[0104] The heater 40a at least partially extends in the chamber. When the aerosol generating article 1000 is received in the chamber, the heater 40a at least partially extends into the middle hole 1132 of the aerosol generating portion 1130 of the aerosol generating article 1000, thereby heating the aerosol generating portion 1130 from the inside of the aerosol generating portion 1130 to generate an aerosol.

[0105] In some embodiments, the heater 40a includes at least one of a resistive heater, an electromagnetic induction heater, and an infrared heater.

[0106] exist Fig.10 In the illustrated embodiment, the heater 40a may include at least one heating element arranged along the longitudinal extension, such as heating element 41a, heating element 42a, heating element 43a and heating element 44a; at least one heating element is individually connected to the circuit board 140a so that it can be independently powered by the circuit board 140a to independently heat the section of the aerosol generating portion 1130 that radially coincides with them.

[0107] In some specific embodiments, at least one heating element, such as heating element 41a, heating element 42a, heating element 43a and heating element 44a, may include an induction coil that generates a magnetic field, a resistance heating coil, an infrared transmitting coil, etc.

[0108] For example, in some specific embodiments, the aerosol generating portion 1130 is composed of Figure 6 The sheet precursor 2130a is wound and formed; the wound aerosol generating portion 1130 includes a plurality of substrate units of the aerosol generating substrate 2135a arranged at intervals in the longitudinal direction. Accordingly, when the aerosol generating portion 1130 is received in the chamber, each heating element in the heater 40a is radially aligned with one substrate unit of the aerosol generating substrate 2135a. Furthermore, in each puff, the circuit board 140a supplies power to one heating element individually to heat one substrate unit individually.

[0109] 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. An aerosol generating article, It is characterized in that include: an aerosol generating portion configured to generate an aerosol when heated; The aerosol generating part is formed by spirally winding a sheet precursor.

2. An aerosol-generating article according to claim 1, It is characterized in that The aerosol generating portion includes at least two wound layers spirally wound from a sheet precursor.

3. An aerosol-generating article according to claim 2, It is characterized in that There are gaps or spacings between adjacent winding layers.

4. An aerosol-generating article according to any one of claims 1 to 3, It is characterized in that The aerosol generating part has a middle hole which penetrates in the longitudinal direction.

5. An aerosol-generating article according to claim 4, It is characterized in that The diameter of the mesopore is between 2.3 and 4.0 mm.

6. An aerosol-generating article according to any one of claims 1 to 3, It is characterized in that The wrap layer is fluid permeable.

7. An aerosol-generating article according to any one of claims 1 to 3, It is characterized in that The winding layer is provided with mesh holes.

8. An aerosol-generating article according to any one of claims 1 to 3, It is characterized in that The aerosol generating part comprises: a helically wound substrate layer; and, An aerosol generating substrate is formed on or bonded to the base layer and is adapted to be heated to generate an aerosol.

9. An aerosol-generating article according to claim 8, It is characterized in that The aerosol-generating substrate comprises a plurality or a plurality of substrate units discretely arranged on the base layer.

10. An aerosol-generating article according to claim 8, It is characterized in that The aerosol-generating substrate is disposed continuously on the base layer.

11. An aerosol-generating article according to claim 8, It is characterized in that The base layer is configured to be penetrated by a changing magnetic field to generate heat, thereby heating the aerosol generating substrate.

12. An aerosol-generating article according to claim 8, It is characterized in that The aerosol-generating substrate is arranged to be heated by receiving heat from the base layer to generate an aerosol.

13. An aerosol-generating article according to claim 8, It is characterized in that The base layer includes a receptive metal or alloy.

14. An aerosol-generating article according to claim 8, It is characterized in that The base layer has a thickness of 0.02 to 0.2 mm; And / or, the aerosol-generating substrate has a thickness of 0.05 to 1 mm.

15. An aerosol generating system, It is characterized in that include: An aerosol-generating article as claimed in any one of claims 1 to 14; A heating device, comprising: a chamber for receiving the aerosol-generating article; At least one heater for heating the aerosol generating portion.

16. An aerosol generating system according to claim 15, It is characterized in that The heater comprises a plurality of heating elements; when the aerosol generating article is received in the chamber, the plurality of heating elements are respectively radially opposite to a plurality of longitudinal sections of the aerosol generating portion; The heating device also includes: The circuit is configured to provide power to the plurality of heating elements individually one after another in a predetermined order, so that the plurality of heating elements sequentially heat different sections of the aerosol generating portion one after another in a predetermined order, thereby generating aerosol sufficient for one puff in each heating.

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