Aerosol generating system and aerosol generating product

Abstract

The present application provides an aerosol generating system and an aerosol generating product. The aerosol generating system comprises: an aerosol generating product, comprising a substrate layer, and an aerosol generating matrix bonded to the substrate layer, the aerosol generating matrix being heated to generate an aerosol; and a heating device, comprising a receiving cavity for receiving the aerosol generating product, wherein a positioning structure is provided on the aerosol generating product and is used for providing guidance during the receiving of the aerosol generating product into the receiving cavity, so that the aerosol generating product is received into the receiving cavity according to a preset position or direction, and the heating device further comprises at least one heater opposite to a part of the aerosol generating matrix, so as to heat the part of the aerosol generating matrix opposite to the heater. According to the aerosol generating system, the positioning structure is arranged on the aerosol generating product to enable the heating device to receive the aerosol generating product according to the preset position, so that the part to be heated of the aerosol generating matrix is aligned with the heater and is heated.

Description

Aerosol generating systems and aerosol generating products

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the China Patent Office on December 4, 2023, with application number 202311653851.1, entitled “Aerosol Generating System and Aerosol Generating Article,” the entire contents of which are incorporated herein by reference. Technical Field

[0003] The embodiments of the present application relate to the technical field of heat-not-burn aerosol generation technology, and in particular to an aerosol generating system and an aerosol generating product. Background Art

[0004] Smoking products (e.g., cigarettes, cigars, etc.) burn tobacco to produce tobacco smoke during use. People have tried to replace these tobacco-burning products by making products that release compounds without burning. An example of such a product is a heating device that releases compounds by heating rather than burning a material. For example, the material may be tobacco or other non-tobacco products, which may or may not contain nicotine. U.S. Patent No. 5,479,948A proposes a heating device that gradually transmits partial sections or positions of an aerosol-generating substrate to a heating element for heating by transmitting a magnetic tape-like aerosol-generating substrate; such a heating device transmits heat to a magnetic tape-like aerosol-generating substrate to allow a consistent aerosol delivery amount to be accurately provided to the consumer each time.

[0005] Application Contents

[0006] One embodiment of the present application provides an aerosol generating system, comprising:

[0007] An aerosol-generating article comprising a base layer, and an aerosol-generating substrate bonded to the base layer; the aerosol-generating substrate is capable of being heated to generate an aerosol; and

[0008] a heating device comprising a receiving chamber for receiving the aerosol-generating article;

[0009] The aerosol-generating article is provided with at least one positioning structure; the positioning structure is configured to provide guidance when the aerosol-generating article is received in the receiving cavity, thereby allowing the aerosol-generating article to be received in the receiving cavity according to a predetermined position or orientation;

[0010] The heating device further comprises: at least one heater, which is opposed to a portion of the aerosol-generating substrate when the aerosol-generating article is received in the receiving cavity in a predetermined position or orientation, thereby heating the opposed portion of the aerosol-generating substrate.

[0011] In some embodiments, the positioning structure is arranged away from the aerosol-generating substrate;

[0012] And / or, the surface of the base layer has an exposed area not covered by the aerosol-generating substrate, and the positioning structure is located in the exposed area.

[0013] In some embodiments, the exposed region accounts for 30% to 70% of the surface area of ​​the base layer.

[0014] In some embodiments, the aerosol-generating article is configured substantially in the shape of a disk or disc.

[0015] In some embodiments, the ring is configured in the shape of a ring with a central hole.

[0016] In some embodiments, the aerosol-generating substrate is a stripe or track pattern extending continuously across the surface of the base layer;

[0017] Alternatively, the aerosol-generating substrate comprises a plurality of substrate units discretely or spaced apart on the surface of the base layer.

[0018] In some embodiments, the base includes a first side and a second side that are opposed to each other;

[0019] An aerosol-generating substrate is bonded to the first side of the base layer;

[0020] When the aerosol-generating article is received in the receiving cavity, the heater is located on the second side of the base layer and heats the portion of the aerosol-generating substrate from the second side.

[0021] In some embodiments, the heater is configured to heat opposing portions of the aerosol-generating substrate from room temperature to 200° C. to 400° C. within 0.5 to 2 seconds.

[0022] In some embodiments, the heater is a substantially planar heater; when the aerosol-generating article is received in the receiving cavity, at least one heater is arranged substantially parallel to the aerosol-generating substrate.

[0023] In some embodiments, the heating device comprises:

[0024] The rotary driver is used to drive the aerosol-generating article received in the receiving chamber to rotate around its central axis, thereby changing the portion of the aerosol-generating substrate opposite to the heater.

[0025] In some embodiments, the heater is positioned offset from a central axis of the receiving cavity and / or the aerosol-generating article.

[0026] In some embodiments, the heater is configured to heat opposing portions of the aerosol-generating substrate in response to a puff by a user to generate an aerosol capable of satisfying a single puff.

[0027] In some embodiments, the rotary drive is configured to drive the aerosol generator received in the receiving chamber to rotate at a predetermined angle so that the portion of the aerosol generating substrate that has been heated is rotated to be offset from the heater, and the unheated portion or the fresh portion is rotated to be opposite to the heater.

[0028] In some embodiments, the heating device is configured to: prevent the rotary drive from rotating the aerosol-generating article while the heater is heating; and prevent the heater from activating heating while the rotary drive is rotating the aerosol-generating article.

[0029] In some embodiments, at least one heater is configured in the form of a planar helical coil.

[0030] In some embodiments, the aerosol-generating article further comprises:

[0031] The support base is used to accommodate or support the base layer and the aerosol generating matrix.

[0032] In some embodiments, a temperature sensing channel is arranged in the support seat, and the temperature sensing channel passes through or extends from the surface of the support seat to the base layer; when the aerosol generating product is received in the heating device for heating, the heating device can contact or abut the base layer through the temperature sensing channel and thereby sense the temperature of the base layer.

[0033] Yet another embodiment of the present application provides an aerosol-generating article, configured to be received in a heating device and heated to generate an aerosol; the aerosol-generating article is substantially configured in the shape of a disk or disc; and the aerosol-generating article comprises:

[0034] a base layer, and an aerosol-generating substrate bonded to the base layer; the aerosol-generating substrate being configured to generate an aerosol when heated by a heating device;

[0035] The aerosol-generating substrate is a stripe or track pattern extending continuously on the surface of the base layer; or, the aerosol-generating substrate comprises a plurality of substrate units discretely or spaced apart on the surface of the base layer.

[0036] In some embodiments, at least one positioning structure is arranged on the base layer; the positioning structure is configured to provide guidance when the aerosol-generating article is received in the heating device, thereby allowing the aerosol-generating article to be received in the heating device in a predetermined orientation.

[0037] In some embodiments, further comprising:

[0038] The support base is used to accommodate or support the base layer and the aerosol generating matrix.

[0039] In some embodiments, further comprising:

[0040] an outer shell defining at least a portion of an outer surface of the aerosol-generating article and housing or retaining the base layer and the aerosol-generating substrate;

[0041] An airflow channel is defined in the housing through the aerosol-generating article to provide an airflow path for air to pass through the aerosol-generating article and carry the aerosol output;

[0042] A small portion of the aerosol-generating matrix will be exposed to the airflow channel.

[0043] In the above aerosol generating system, it is advantageous to arrange a positioning structure on the aerosol generating article so that the heating device receives the aerosol generating article according to a predetermined position, thereby aligning the portion of the aerosol generating substrate to be heated with the heater and heating it. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings. These exemplifications do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0045] FIG1 is a schematic diagram of an aerosol-generating article provided in one embodiment;

[0046] FIG2 is a schematic diagram of an aerosol generating system provided by an embodiment;

[0047] FIG3 is a schematic structural diagram of a heater provided in an embodiment;

[0048] FIG4 is a schematic diagram of an aerosol-generating article provided in yet another embodiment;

[0049] FIG5 is a schematic diagram of an aerosol-generating article provided in yet another embodiment;

[0050] FIG6 is a schematic diagram of an aerosol-generating article provided in yet another embodiment;

[0051] FIG7 is a schematic diagram of an aerosol-generating article provided in yet another embodiment;

[0052] FIG8 is a schematic structural diagram of a heater provided in yet another embodiment;

[0053] FIG9 is a schematic structural diagram of the heater in FIG8 from one perspective;

[0054] FIG10 is a structural schematic diagram of the heater in FIG8 from another perspective;

[0055] FIG11 is a schematic structural diagram of a heater according to another embodiment;

[0056] FIG12 is a schematic diagram of a heating curve provided by an embodiment;

[0057] FIG13 is a schematic structural diagram of an aerosol generating article according to yet another embodiment from one perspective;

[0058] FIG14 is a schematic cross-sectional view of the aerosol-generating article in FIG13 from one perspective;

[0059] FIG15 is a schematic cross-sectional view of an aerosol-generating article according to yet another embodiment, viewed from one perspective;

[0060] FIG16 is a schematic cross-sectional view of an aerosol-generating article according to yet another embodiment, viewed from one perspective. DETAILED DESCRIPTION

[0061] In order to facilitate the understanding of the present application, the present application is described in more detail below with reference to the accompanying drawings and specific implementation methods.

[0062] One embodiment of the present application provides an aerosol-generating article that can generate an aerosol by being heated. In some embodiments, part or all of the aerosol-generating article is intended to be consumed by a user by being heated during use.

[0063] For example, FIG1 shows a schematic diagram of an aerosol-generating article 100 according to one embodiment; in this embodiment, the aerosol-generating article 100 is generally configured in the shape of a ring. Alternatively, in still other variations, the aerosol-generating article 100 is configured in a sheet-like shape such as an ellipse, triangle, quadrilateral, polygon, etc. In an embodiment, the aerosol-generating article 100 is generally configured in the form of a disk or disc having a central hole 111.

[0064] In the embodiment of FIG. 1 , the aerosol-generating article 100 comprises:

[0065] A sheet-like base layer 110 and an aerosol generating substrate 120 formed on or bonded to the base layer 110 .

[0066] In some embodiments, the base layer 110 provides rigidity and strength to the aerosol-generating article 100; for example, the base layer 110 is rigid. In some embodiments, the base layer 110 can be made of an inorganic oxide material such as ceramic or glass, or an inorganic metal or alloy material such as stainless steel, aluminum, aluminum alloy, or tin foil. Alternatively, the base layer 110 can be made of an organic polymer plastic material such as PEEK, PI, PPS, PTFE, PA, PC, or PMMA.

[0067] In some embodiments, the base layer 110 has a thickness ranging from 0.01 mm to 1 mm. In some embodiments, the disc-shaped base layer 110 has a diameter ranging from 4 mm to 200 mm.

[0068] In some embodiments, the base layer 110 is rigid or hard. In some preferred embodiments, the surface of the base layer 110 facing or bonding to the aerosol-generating substrate 120 is non-smooth; for example, at least one of the surfaces of the first side and / or the second side of the base layer 110 is rough; for example, the surface of the first side and / or the second side of the base layer 110 is surface-processed by at least one process such as corona treatment, electrochemical etching, indentation, or frosting, thereby forming a rough surface, such as a frosted surface; the rough surface of the base layer 110 is beneficial for maintaining a close bond with the aerosol-generating substrate 120 and preventing the base layer 110 and the aerosol-generating substrate from moving relative to each other within their bonding surface.

[0069] In some embodiments, the aerosol-generating substrate 120 may be in the form of a thin layer formed on the base layer 110. For example, in some embodiments, the thickness of the aerosol-generating substrate 120 is 0.1 to 1.0 mm. In some embodiments, the thickness of the aerosol-generating substrate 120 is greater than the thickness of the base layer 110. Alternatively, the thickness of the aerosol-generating substrate 120 is greater than half the thickness of the aerosol-generating article 100.

[0070] In some embodiments, aerosol-generating substrate 120 can be used to refer to a substrate capable of releasing volatile compounds that can form an aerosol. The volatile compounds can be released to form an aerosol by heating aerosol-generating substrate 120. In some typical embodiments, aerosol-generating substrate 120 is or can include a solid at room temperature.

[0071] In some embodiments, the aerosol-generating substrate 120 may include one or more of powder, particles, shredded strips, ribbons, or flakes of one or more of herb leaves, tobacco leaves, homogenized tobacco, and expanded tobacco; or, the solid aerosol-generating substrate 120 may contain additional tobacco or non-tobacco volatile flavor compounds to be released when the substrate is heated.

[0072] In some specific embodiments, the aerosol-generating substrate 120 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 plant leaves, bark, fibrous tissue, stems, roots, petals, fruits, etc.; for example, in one specific embodiment, the active substrate includes or is derived from one or more plant species or components, derivatives, or extracts thereof, and the plant species is tobacco. For example, in one 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 leaf vein segments, reconstituted tobacco, homogenized tobacco, extruded tobacco, tobacco slurry, cast leaf tobacco, and expanded tobacco.

[0073] In some optional embodiments, the aerosol-generating substrate 120 further comprises a flavorant. The flavorant may comprise a volatile flavor component. For example, in typical embodiments, the flavorant may provide a flavor selected from menthol, lemon, vanilla, orange, wintergreen, cherry, and cinnamon. The flavorant may comprise a volatile tobacco flavorant compound that is released from the aerosol-generating substrate 120 upon heating.

[0074] In some optional embodiments, the aerosol-generating substrate 120 further includes an aerosol-forming agent or a smoke-generating agent, which facilitates the formation of a dense and stable aerosol during use. In some specific embodiments, the aerosol-forming agent or a smoke-generating agent is or includes at least one of glycerin, glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and the like.

[0075] In some optional embodiments, the aerosol generating matrix 120 further includes: an adhesive; the adhesive promotes the bonding of the components in the aerosol generating matrix 120 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.

[0076] In some optional embodiments, the aerosol-generating substrate 120 further comprises reinforcing fibers. The reinforcing fibers generally have a fiber strength higher than that of the tobacco plant fibers in the active substrate, thereby enhancing the strength and plasticity of the aerosol-generating substrate 120 during use. For example, in some specific embodiments, the reinforcing fibers comprise at least one of softwood fibers, hardwood fibers, hemp fibers or flax fibers, bamboo fibers, and the like.

[0077] In a specific embodiment, the aerosol-generating matrix 120 includes: 65-90 wt% of active substrate, 3-10 wt% of reinforcing fiber, 0-5 wt% of binder, 5-15 wt% of flavor, and 10-20 wt% of aerosol former or smoke generator.

[0078] Or in another specific embodiment, the aerosol generating matrix 120 includes: 65-90 wt% of active substrate, 3-10 wt% of reinforcing fiber, 0-5 wt% of adhesive, 5-15 wt% of flavor, and 15-40 wt% of aerosol former or smoke generator.

[0079] In some embodiments, the surface density of the aerosol-generating substrate 120 is 20 to 150 g / m 2 .

[0080] In some embodiments, the water content of the aerosol-generating substrate 120 is 6-14 wt %.

[0081] In some embodiments, the aerosol-generating substrate 120 is formed on the surface of the base layer 110 by rolling, casting, or the like.

[0082] In some embodiments, the aerosol-generating substrate 120 is formed on only one side surface of the base layer 110. In use, the aerosol-generating substrate 120 can be heated by applying heat or a heater to the other side surface of the base layer 110. Alternatively, in some alternative embodiments, the aerosol-generating substrate 120 is formed on both sides of the base layer 110. For example, the aerosol-generating substrate 120 may include a first aerosol-generating substrate formed on a first side surface of the base layer 110 and a second aerosol-generating substrate formed on a second side surface of the base layer 110.

[0083] In some embodiments, the aerosol-generating substrate 120 is continuously arranged on the surface of the base layer 110. For example, in the embodiment shown in FIG1 , the aerosol-generating substrate 120 on the surface of the base layer 110 is in the shape of a continuously extending strip or track pattern. In FIG1 , the aerosol-generating substrate 120 is in the shape of a closed annular ring. Alternatively, in some alternative embodiments, the aerosol-generating substrate 120 is discontinuously arranged on the surface of the base layer 110. For example, the aerosol-generating substrate 120 includes a plurality of substrate units discretely or spaced apart on the base layer 120.

[0084] In some embodiments, the aerosol-generating substrate 120 has a thickness of 0.05 to 1 mm.

[0085] In the embodiment of FIG1 , the aerosol-generating substrate 120 does not completely cover the side surface of the base layer 120 to which it is bonded. For example, as shown in FIG1 , the side surface of the base layer 120 has an exposed area 115 that is not covered by the aerosol-generating substrate 120. In some embodiments, the area of ​​the exposed area 115 accounts for approximately 30% to 70% of the total area of ​​the side surface of the base layer 120. In some embodiments, a logo or positioning structure is disposed on the exposed area 115.

[0086] In some embodiments, the identifier, such as a color pattern feature, a magnetic induction recognition feature, a barcode, or a QR code, is used to provide an identification indication associated with the unique properties of the aerosol-generating article 100. The unique properties of the aerosol-generating article 100 include various information about the aerosol-generating article, such as authenticity information, expiration date, and place of origin. Thus, by obtaining the above information about the aerosol-generating article through the first identifier, it is possible to determine whether the aerosol-generating article is authentic, when the aerosol-generating article has expired, and where the aerosol-generating article was manufactured. Therefore, users may not inadvertently use an inauthentic aerosol-generating article, an expired aerosol-generating article, or an aerosol-generating article from an unexpected source location.

[0087] In some embodiments, positioning structures such as positioning holes, positioning grooves, etc. are used to provide guidance on receiving and positioning when the aerosol generating product 100 is received in the heating device 300, so that the aerosol generating product 100 can be accurately received in the heating device 300 according to a predetermined position or orientation; for example, the aerosol generating product 100 is aligned in the radial direction to avoid deviation to affect heating.

[0088] 1 , the base layer 110 is configured to be annular in shape with a central pore 111. The aerosol generating substrate 120 is arranged around the central pore 111. In some embodiments, the diameter of the central pore 111 is between 0.4 and 20 mm.

[0089] Yet another embodiment of the present application further provides an aerosol generating system, comprising:

[0090] an aerosol-generating article 100;

[0091] The heating device 300 is used to receive the aerosol-generating article 100 and heat it to generate an aerosol for inhalation by a user.

[0092] As shown in FIG2 , the heating device 300 includes:

[0093] a rechargeable battery cell 310 for power supply;

[0094] The circuit board 320 is a PCB board or an FPC board, on which a circuit is arranged;

[0095] A heating mechanism 340 , wherein, in use, the aerosol-generating article 100 can be received into the heating mechanism 340 through an opening or opening on a surface of the heating device 300 to be heated or removed;

[0096] The mouthpiece 350 is configured for a user to inhale the aerosol generated by the aerosol-generating article 100 through the mouthpiece 350 .

[0097] Accordingly, in some embodiments, the heating device 300 further includes:

[0098] The positioning coupling structure is configured to couple with the positioning structure on the aerosol-generating article 100. When the aerosol-generating article 100 is received in the heating device 300, the positioning coupling structure cooperates with the positioning structure to receive the aerosol-generating article 100 in the heating device 300 at a predetermined position or orientation. The positioning coupling structure may be, for example, a hole or a protrusion that mates with the positioning structure.

[0099] As shown in FIG2 , the heating mechanism 340 includes:

[0100] a heater 330 , which, when the aerosol-generating article 100 is received in the heating mechanism 340 , is offset from the center of the aerosol-generating article 100 and is opposed to a portion of the aerosol-generating substrate 120 of the aerosol-generating article 100 ; thereby, the heater 330 can be used to heat the opposed portion of the aerosol-generating substrate 120 ;

[0101] The rotational driver 370, such as a motor or an electric motor, is used to drive the aerosol-generating substrate 120 to rotate about its axis, thereby changing the position of the portion relative to the heater 330. In some embodiments, the rotational driver 370 is a motor having a rotational output end. During assembly, the rotational driver 370 extends the rotational output end into the base layer 110 of the aerosol-generating article 100 and couples with the base layer 110, thereby driving the aerosol-generating article 100 to rotate.

[0102] In some embodiments, the area in which the heater 330 contacts, abuts, or is aligned with the aerosol-generating substrate 120 is approximately 15 to 30 square millimeters; then, in each puff, the area of ​​approximately 15 to 30 square millimeters of the aerosol-generating substrate 120 opposite the heater 330 is heated, thereby generating an aerosol that can satisfy one puff.

[0103] In some embodiments, the total area of ​​the aerosol-generating substrate 120 may be sufficient for approximately 6-15 puffs by gradually varying the rotation in combination with heating on the heater 330 .

[0104] In some embodiments, the heater 330 is stationary; alternatively, the heater 330 is non-rotatable or non-movable.

[0105] As shown in FIG2 , the heating mechanism 340 further includes:

[0106] The bracket 360 is used to support or accommodate the aerosol-generating article 100 and the rotary driver 370. After assembly, the rotary driver 370 is mounted and retained on the bracket 360. The aerosol-generating article 100 is received in the bracket 360 and coupled to the rotary driver 370 so as to be driven to rotate by the rotary driver 370.

[0107] In some embodiments, the rotation of the aerosol-generating article 100 is substantially in the plane of the aerosol-generating article 100 . In other words, the rotation of the aerosol-generating article 100 is in a plane perpendicular to the central axis of the aerosol-generating article 100 .

[0108] In some embodiments, the rotation drive 370 drives the aerosol-generating article 100 to rotate, including clockwise and / or counterclockwise rotation around the aerosol-generating article 100. Alternatively, in some embodiments, the rotation drive 370 drives the aerosol-generating article 100 to rotate in both counterclockwise and clockwise directions. Furthermore, in some embodiments, the rotational speed at which the rotation drive 370 drives the aerosol-generating article 100 is between 0.5 and 5 revolutions per second. Furthermore, the rotational speed at which the rotation drive 370 drives the aerosol-generating article 100 is substantially uniform or constant. Alternatively, in yet other embodiments, the rotational speed at which the rotation drive 370 drives the aerosol-generating article 100 varies, for example, gradually increasing or decreasing.

[0109] In some embodiments, the rotary actuator 370 is configured to rotate the aerosol-generating article 100 according to a predetermined rotation angle or stroke. For example, in some embodiments, after each puff, the rotary actuator 370 rotates the aerosol-generating article 100 by a predetermined angle, thereby rotating the heated portion of the aerosol-generating substrate 120 away from the heater 330 and rotating the unheated or fresh portion thereof opposite the heater 330, thereby facilitating heating during the next puff. For another example, in some embodiments, before each puff, the rotary actuator 370 rotates the aerosol-generating article 100 by a predetermined angle based on an input signal generated by a user-operated input element (e.g., a mechanical button, a membrane button, a mechanical switch, a rotary encoder, etc.). For example, before puffing, the rotary actuator 370 rotates the aerosol-generating article 100 by a predetermined angle based on the user's operation, thereby rotating the unheated or fresh portion of the aerosol-generating substrate 120 opposite the heater 330, and then controlling the heater 330 to heat the aerosol to generate an aerosol for the user to puff.

[0110] In some embodiments, the rotary drive 370 drives the aerosol-generating article 100 to rotate within an angular range of approximately 20° to 60°.

[0111] In some embodiments, the aerosol-generating article 100 is driven to rotate so that the portion of the aerosol-generating substrate 120 opposite to the heater 330 is heated during each heating, thereby generating an aerosol; while other portions of the aerosol-generating substrate 120 are not heated into an aerosol.

[0112] In some embodiments, during each heating, the portion of the aerosol-generating substrate 120 opposite the heater 330 is heated to generate an aerosol sufficient for one puff. In some embodiments, during each heating, the portion of the aerosol-generating substrate 120 opposite the heater 330 is heated to generate an amount of total particulate matter (TPM) of 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, sufficient for one puff.

[0113] 2 , the holder 360 has a notch 361. When the aerosol-generating article 100 is received in the holder 360, a portion of the aerosol-generating article 100 is exposed in the notch 361. The heater 330 is at least partially disposed within the notch 361, such that the heater 330 can face the portion of the aerosol-generating article 100 within the notch 361, thereby providing heating during inhalation.

[0114] In some embodiments, during each puff, the heater 330 is configured to rapidly apply heat to the opposing portion of the aerosol-generating substrate 120 to generate an aerosol. For example, in some embodiments, the heater 330 is configured to rapidly heat the opposing portion of the aerosol-generating substrate 120 from room temperature to 200° C. to 400° C. within approximately 0.5 to 2 seconds to rapidly generate an aerosol.

[0115] For example, FIG12 shows a schematic diagram of a heating curve of the heater 330 heating the opposite portion of the aerosol-generating substrate 120 during a single puff in one embodiment; the heating process includes:

[0116] Heating stage S1: Rapidly heating from room temperature T0 to preset temperature T1 within time t1;

[0117] Constant temperature stage S2: keep the heating temperature basically at the preset temperature T1 and heat until time t2;

[0118] Cooling stage S3: cooling from the preset temperature T1 to a temperature lower than the preset temperature T2 or room temperature T0 at time t3.

[0119] In some embodiments, the duration t1 of the heating phase S1 is less than 2 seconds, for example, 1 second; the duration of the heating phase S2 (time t2-t1) is less than 4 seconds, for example, 3 seconds; and the duration of the cooling phase S3 (time t3-t2) is less than 3 seconds, for example, 1 second. Furthermore, in some embodiments, the total time from the start of heating of the heater 330 until it cools down to below the predetermined temperature T2 or room temperature T0 is less than 5 seconds.

[0120] In some embodiments, the preset temperature T1 is higher than the lowest release temperature of at least one of the volatile compounds of the aerosol-generating substrate 120. For example, in some embodiments, the preset temperature T1 is higher than 200°C; preferably, the preset temperature T1 is higher than 220°C; for example, in one specific embodiment, the preset temperature T1 is 250°C. Furthermore, the preset temperature T2 is set to 50°C, preferably to 48°C, and more preferably to room temperature.

[0121] In yet other embodiments, during the temperature rise phase S1 of the heating process, the power supplied by the heating device 300 to the heater 330 flows unrestricted or uninterrupted to rapidly generate heat and achieve rapid temperature rise. Furthermore, in yet other embodiments, during the constant temperature phase S2, the power supplied by the heating device 300 to the heater 330 may be interrupted or alternately cycled, thereby forming a pulsed state, until time t2.

[0122] In yet other embodiments, the heating device 300 is configured to:

[0123] The rotary drive 370 is prevented from rotating the aerosol-generating article 100 relative to the heater 330 while the heater 330 is heating; and the heater 330 is prevented from being supplied with power to initiate heating while the rotary drive 370 is rotating the aerosol-generating article 100.

[0124] For example, in the embodiment shown in FIG. 3 , the heater 330 may be substantially square; or in some other variations, the heater 330 may be substantially fan-shaped; it is advantageous for the fan-shaped heater 330 to be partially adapted to the annular aerosol-generating article 100 .

[0125] In some embodiments, the heater 330 is configured to be approximately block-shaped, sheet-shaped, plate-shaped, or disk-shaped. In some embodiments, the heater 330 includes at least one of a resistive heater, an induction heater, or an infrared heater.

[0126] For example, FIG3 shows a schematic diagram of a heater 330 according to an embodiment. In this embodiment, the heater 330 includes a substrate 331 and a heating element 332 formed on or bonded to the substrate 331 .

[0127] In some embodiments, substrate 331 is used to support heating element 332. Substrate 331 is electrically insulating. Substrate 331 is rigid. Substrate 331 can be made of, for example, ceramic or glass.

[0128] In some embodiments, the heating element 332 is a planar heating element. In some embodiments, the heating element 332 is made of a resistive metal material, a metal alloy material, graphite, a conductive ceramic, or the like. Suitable metal or alloy materials may include, for example, at least one of nickel, cobalt, zirconium, titanium, aluminum, chromium, tungsten, iron, niobium, tantalum, molybdenum, silver, gold, platinum, palladium, a nickel alloy, a cobalt alloy, a zirconium alloy, a titanium alloy, a nickel-chromium alloy, a nickel-iron alloy, an iron-chromium alloy, an iron-manganese-aluminum-based alloy, or stainless steel.

[0129] In the embodiment shown in FIG3 , heating element 332 comprises a conductive track formed on substrate 331. The conductive track can be formed on substrate 331 by slurry printing, spraying, or printing, or can be formed by etching a conductive sheet precursor into a track pattern and then bonded to substrate 331 by adhesive bonding or mechanical fastening. In some embodiments, the conductive track is a patterned conductive track, such as a circuitous, meandering conductive track. In the embodiment shown in FIG3 , heating element 332 in the form of a conductive track includes an increased track width portion 3321, which defines an electrical connection area for heating element 332. Conductive leads 333 are electrically connected to the electrical connection area defined by increased track width portion 3321, thereby conducting current through heating element 332. Conductive leads 333 are then electrically connected to circuit board 320, enabling circuit board 320 to control the supply of power to heating element 332. In use, the heating element 332 generates heat through resistive Joule heating, and then transfers the heat to the opposite portion of the base layer 110 , thereby heating the portion of the aerosol-generating substrate 120 .

[0130] In yet other embodiments, the heating element 332 is an induction heating element capable of generating a magnetic field; for example, the heating element 332 is configured as a planar spiral coil; the heating element 332 can be a separately prepared planar spiral coil, or a coil coating printed, sprayed, or deposited on the substrate 331. The base layer 110 of the aerosol-generating article 100 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 portion of the base layer 110 opposite the heating element 332 is heated by the magnetic field, thereby heating a portion of the aerosol-generating substrate 120 to generate aerosol.

[0131] Alternatively, FIG4 shows a schematic diagram of an aerosol-generating article 100a according to yet another embodiment; in this embodiment, the aerosol-generating article 100a comprises:

[0132] A substantially annular base layer 110a and an aerosol-generating substrate 120a located on the base layer 110a; the aerosol-generating substrate 120a includes a plurality of substrate units discretely arranged on the base layer 110a. The plurality of discrete substrate units of the aerosol-generating substrate 120a can be sequentially and independently heated by a heater 330 to generate an aerosol.

[0133] In some embodiments, the mass of each substrate unit of the aerosol-generating substrate 120a is approximately 5 mg to 60 mg. In some embodiments, the thickness of each substrate unit of the aerosol-generating substrate 120a is approximately 0.1 mm to 1.0 mm. In some embodiments, the area of ​​each substrate unit of the aerosol-generating substrate 120a is approximately 9 mm. 2 ~80mm 2 In some embodiments, the weight of the substrate units of the aerosol-generating substrate 120a is 5 mg to 50 mg. As shown in FIG. 4 , several of the substrate units of the aerosol-generating substrate 120a are substantially circular in shape, and the several substrate units are arranged around the central hole 111a. Alternatively, in some other variations, the several substrate units of the aerosol-generating substrate 120a may be configured in square, polygonal, triangular, star-shaped, semicircular, heart-shaped, cross-shaped, teardrop-shaped, or the like.

[0134] During use, when the aerosol-generating article 100a is received in the heating device 300, the rotation driver 370 can drive the aerosol-generating article 100a to rotate, thereby rotating the aerosol-generating substrate 120a to change the relative position of the substrate unit and the heater 330. During each puff, the heater 330 can heat the opposing substrate unit to generate an aerosol sufficient for one puff.

[0135] As shown in FIG4 , the substrate layer 110a of the aerosol-generating article 100a is further provided with a plurality of positioning structures 112a, such as a plurality of positioning holes 112a disposed on the substrate layer 110a. The positioning holes 112a may be through holes extending through the substrate layer 110a, or may be blind holes or grooves formed on a side surface of the substrate layer 110a.

[0136] In one aspect, the positioning structure 112a is used to provide angular positioning when the aerosol-generating article 100a is received in the heating device 300; the positioning enables the aerosol-generating article 100a to be accurately received in the heating device 300 according to a predetermined direction or angle, for example, it is beneficial for the substrate unit of the aerosol-generating substrate 120a to be accurately aligned with the heater 330.

[0137] In yet another aspect, the positioning structure 112a is used to provide an indication of the angle at which the aerosol-generating article 100a is rotated by the rotational driver 370. For example, in some embodiments, a sensor, such as a camera or an infrared light sensor, is disposed within the heating device 300 to sense the positioning structure 112a during the rotation of the aerosol-generating article 100a, thereby determining the rotational angle or travel of the aerosol-generating article 100a and controlling the rotational driver 370 to stop driving the aerosol-generating article 100a so as to maintain the rotation of the aerosol-generating article 100a at a predetermined angle. Specifically, before the aerosol-generating article 100a rotates, the sensor is aligned with one of the positioning structures 112a. When the aerosol-generating article 100a rotates until the sensor senses alignment with the next positioning structure 112a, the rotational driver 370 stops driving the aerosol-generating article 100a, thereby facilitating angular positioning during the rotation process.

[0138] In the embodiment shown in FIG. 4 , a plurality of or several positioning structures 112 a are arranged at intervals around the circumference of the base layer 110 a ; the plurality of or several positioning structures 112 a are close to the outer edge of the base layer 110 a in the radial direction.

[0139] Alternatively, FIG5 shows a schematic diagram of an aerosol-generating article 100b according to another embodiment. In this embodiment, the aerosol-generating article 100b comprises:

[0140] A base layer 110b and an aerosol-generating substrate 120b located on the base layer 110b. The aerosol-generating substrate 120b includes a plurality of substrate units discretely arranged on the base layer 110b. The plurality of discrete substrate units of the aerosol-generating substrate 120b can be sequentially and independently heated by a heater 330 to generate an aerosol.

[0141] In the embodiment shown in Figure 5, the base layer 110b is annular in shape with a central hole 111b; and, a plurality of positioning structures 112b arranged around the central hole 111b are arranged on the inner edge of the base layer 110b; in this embodiment, the positioning structure 112b is a notch 112b located on the inner edge of the base layer 110b.

[0142] In some embodiments, a plurality of protruding teeth are arranged on the rotational output end of the rotational driver 370, such as a motor; during use, the rotational output end of the rotational driver 370 is inserted into the middle hole 111b of the base layer 110b, and a coupling is formed through the protruding teeth and the notch 112b, so that the rotational driver 370, such as a motor, drives the rotation of the aerosol generating product 100b.

[0143] Alternatively, in some aspects, when the aerosol-generating article 100b is received in the heating device 300, the heating device 300 forms a coupling by engaging with the notch 112b, thereby positioning the aerosol-generating article 100b in the heating device 300 in a predetermined position. This is advantageous for aligning the substrate units of the aerosol-generating substrate 120b with the heater 330b.

[0144] Alternatively, FIG6 shows a schematic diagram of an aerosol-generating article 100c according to another embodiment. In this embodiment, the aerosol-generating article 100c comprises:

[0145] A substantially annular base layer 110c and an aerosol-generating substrate 120c bonded to the base layer 110c. In this embodiment, the aerosol-generating substrate 120c comprises a plurality of annular substrate units arranged in a radial direction of the aerosol-generating article 100c. In this embodiment, the plurality of substrate units of the aerosol-generating substrate 120c are spaced apart in the radial direction.

[0146] In some embodiments, the radial width of the substrate units of the aerosol-generating substrate 120c is between 0.5 and 10 mm. In some embodiments, the spacing between adjacent substrate units of the aerosol-generating substrate 120c along the radial direction of the aerosol-generating article 100c is between 0.1 and 5 mm.

[0147] In some embodiments, the multiple, spaced-apart, annular substrate units of the aerosol-generating substrate 120c are arranged to have different aerosol properties. Aerosol properties may include aerosol fragrance, color, etc. In some specific embodiments, the multiple substrate units of the aerosol-generating substrate 120c may each have a different fragrance. For example, the multiple substrate units may each have a fragrance selected from the group consisting of menthol, lemon, vanilla, orange, wintergreen, cherry, and cinnamon. Alternatively, in other specific embodiments, the multiple substrate units of the aerosol-generating substrate 120c may each have a different color.

[0148] Alternatively, FIG. 7 shows a schematic diagram of an aerosol-generating article 100d according to another embodiment. In this embodiment, the aerosol-generating article 100d comprises:

[0149] A substantially annular base layer 110d and an aerosol-generating substrate 120d bonded to the base layer 110d. In this embodiment, the aerosol-generating substrate 120d is in the shape of a flat spiral.

[0150] A positioning structure 112d is also arranged on the base layer 110d to provide positioning when the aerosol-generating article 100d is received in the heating device 300 and / or rotated; in this embodiment, the positioning structure 112d includes positioning holes 112d located at both ends of the planar spiral aerosol-generating matrix 120d.

[0151] 8 to 10 show schematic diagrams of a heating device 300a according to another embodiment. In this embodiment, a heating mechanism 340a of the heating device 300a includes:

[0152] Battery cell 310a, circuit board 320a;

[0153] The heating mechanism 340a defines a receiving cavity 350a for accommodating or receiving the aerosol-generating article 100. The heating mechanism 340a further includes a plurality of discretely arranged heaters 331a. In this embodiment, the heaters 331a are in the form of planar spiral coils. The heaters 331a may include at least one of a resistive heater, an electromagnetic induction heater, or an infrared heater.

[0154] When the aerosol-generating article 100 is received in the receiving chamber 350a, the plurality of heaters 331a are positioned opposite different portions or regions of the aerosol-generating article 100. The circuit board 320a is configured to control the plurality of heaters 331a to heat sequentially, one after the other, in a predetermined order based on a user's puff. In some embodiments, the circuit board 320 is configured to control the plurality of heaters 331a to heat at different times; for example, during each puff by the user, the circuit board 320a controls only one heater 331a to heat the aerosol sufficient for that puff.

[0155] In some embodiments, during multiple puffs by a user, the circuit board 320a controls the activation of the multiple heaters 331a in a predetermined order, one after another. For example, as shown in FIG8 , this can be done in a clockwise or counterclockwise direction. Specifically, for example, during the user's first puff, the circuit board 320a provides power to the first heater 331a closest to the circuit board 320a for heating, generating aerosol for one puff. During the user's next puff, the circuit board 320a provides power to the second heater 331a immediately adjacent to the last activated heater in a clockwise direction for heating, generating aerosol for one puff. This process continues until all heaters 331a are heated, the substrate unit of the aerosol-generating article 100 has been puffed, and the user is prompted to replace the aerosol-generating article 100. In the above embodiment, activating the heaters 331a individually in sequence rather than simultaneously means minimizing unnecessary consumption of the aerosol-generating substrate and reducing energy waste. Alternatively, in some other implementations, the order in which the heaters 331a are sequentially activated according to a predetermined order is performed sequentially along the direction of the spaced arrangement.

[0156] As shown in Figures 8 to 10 , in this embodiment, the plurality of heaters 331 a are configured as planar heaters. As shown in Figures 8 to 10 , the plurality of heaters 331 a are disposed within the receiving cavity 350 a and can abut or contact the aerosol-generating article 100 when the aerosol-generating article 100 is received within the receiving cavity 350 a. The heaters 331 a are configured as planar spiral coils, thereby heating the aerosol-generating article 100 by generating resistive Joule heating or by generating a magnetic field to induce eddy current heating in the base layer 110 of the aerosol-generating article 100.

[0157] As shown in FIG9 and FIG10 , the heating mechanism 340a further includes:

[0158] The substrate 332a is located in the receiving cavity 350a to support or hold the heater 331a.

[0159] In some embodiments, the heater 331a and the substrate 332a are independently manufactured and then mechanically connected or fastened together. Alternatively, in other embodiments, the heater 331a may be in the form of a coating or thin layer formed on the substrate 332a by deposition, printing, or spraying.

[0160] Alternatively, FIG11 shows a schematic diagram of a heating mechanism 340b of another embodiment, in which the heating mechanism 340b includes:

[0161] a receiving cavity 350b for receiving or containing the aerosol-generating article 100;

[0162] The heater 331b is disposed adjacent to and isolated from the receiving cavity 350b; when the aerosol-generating article 100 is received in the receiving cavity 350b, the heater 331b heats the aerosol-generating article 100 without contact. In some embodiments, the heater 331b may be heated by resistive heating or electromagnetic heating.

[0163] In some embodiments, the heater 331b is substantially parallel to the aerosol-generating article 100 when the aerosol-generating article 100 is received in the receiving cavity 350b.

[0164] 13 and 14 show schematic diagrams of an aerosol-generating article 100d according to yet another embodiment. In this embodiment, the aerosol-generating article 100d comprises:

[0165] a base layer 110d and an aerosol generating substrate 120d formed on a first side surface of the base layer 110d;

[0166] The support base 130d is used to accommodate and fix the base layer 110d; alternatively, the base layer 110d is firmly supported and retained on the support base 130d.

[0167] In the embodiment of FIG. 13 and FIG. 14 , the support base 130 d is in the shape of a sheet or plate, and a surface of the support base 130 d has a recess 131 d ; the base layer 110 d is at least partially accommodated and retained in the recess 131 d .

[0168] 13 and 14 , the support base 130d is in contact with and covers the second side surface of the base layer 110d , and at least a portion of the aerosol generating substrate 120d is exposed outside the support base 130d .

[0169] In some embodiments, the base layer 110d is used to support the aerosol generating matrix 120d and is in direct contact with the aerosol generating matrix 120d; the base layer 110d is a metal material that can be penetrated by a magnetic field and generate heat. For example, the base layer 110d includes aluminum, nickel, and ferromagnetic materials, such as iron-based alloys, nickel-based alloys, stainless steel series such as 420 stainless steel, 430 stainless steel, etc., graphite, carbon and other materials, or can be two or more composite materials, such as stainless steel-nickel composite, iron-nickel composite, iron-aluminum composite, etc. (such as an aluminum layer deposited on the surface of iron, etc.), wherein the Curie temperature of the ferromagnetic material is not lower than 300°C, preferably not lower than 400°C.

[0170] In some embodiments, the support base 130d is made of non-sensitive rigid materials, such as inorganic ceramics, glass, organic polymer plastics such as PEEK, PC, etc.

[0171] Alternatively, in some alternative embodiments, the base layer 110d serves only to support the aerosol-generating substrate 120d; the base layer 110d cannot be inductively heated to heat the aerosol-generating substrate 120d. Accordingly, the aerosol-generating substrate 120d may contain magnetic particles, such as iron powder particles, so that the aerosol-generating substrate 120d can be heated by the internally doped magnetic particles when a magnetic field penetrates. In this case, the base layer 110d may be made of an insulating material, such as glass, ceramic, or fiber.

[0172] In some embodiments, the support seat 130d can be made of ceramic, glass, and plastic, preferably an insulating material with low thermal conductivity and low mass heat capacity, such as zirconia, glass, PEEK, etc., and the long-term temperature resistance needs to be no less than 250°C.

[0173] During use, the aerosol-generating article 100d can be received in the heating device 300a together with the support base 130d for heating. Alternatively, in some alternative embodiments, the support base 130d merely serves as a packaging or shell for the aerosol-generating article 100d sold separately. During use, the user can remove or pour the integrally connected base layer 110d and aerosol-generating substrate 120d from the support base 130d using their fingers, and then receive the aerosol-generating substrate 120d separately in the heating device 300a for heating.

[0174] Alternatively, FIG. 15 shows a schematic diagram of an aerosol-generating article 100e according to another alternative embodiment. In this embodiment, the aerosol-generating article 100e comprises:

[0175] A base layer 110e, and an aerosol generating substrate 120e formed on a first side surface of the base layer 110e;

[0176] The housing includes a support base 130e and an upper cover 140e, which define a mounting space therebetween for accommodating and retaining the base layer 110e and the aerosol-generating substrate 120e. In the sold state, the aerosol-generating substrate 120e is shielded and covered by the upper cover 140e, which helps to protect the aerosol-generating substrate 120e from water and moisture.

[0177] In some embodiments, the support base 130e and the upper cover 140e are made of non-sensitive rigid materials, such as inorganic ceramics, glass, organic polymer plastics such as PEEK, PC, etc.

[0178] In some embodiments, the upper cover 140e and the support base 130e jointly define the outer shell or outer surface of the aerosol-generating article 100e. During use, the upper cover 140e and the support base 130e of the aerosol-generating article 100e can be received as a whole within the heating device 300a for heating. Accordingly, when they are received as a whole within the heating device 300a, fastening components such as snaps or magnets can be provided within the heating device 300a to securely hold them within the heating device 300a.

[0179] In the embodiment shown in FIG15 , an airflow channel 150e is further defined between the upper cover 140e and the support base 130e. At least a portion of the aerosol-generating substrate 120e is exposed to the airflow channel 150e, or airflow at least partially flows through the aerosol-generating substrate 120e. When the aerosol-generating article 100e is received within the heating device 300a, the airflow channel 150e at least partially provides air for passing through the aerosol-generating article 100e, carrying the aerosol as it is output, as indicated by arrow R1 in FIG15 .

[0180] Alternatively, in some other embodiments, the upper cover 140e and the support base 130e can be disassembled relative to each other; such a disassembly design allows the internal aerosol generating matrix 120e to be replaced, thereby avoiding the generation of odor by aerosol condensate remaining in the shell defined by the upper cover 140e and the support base 130e during long-term use, and facilitating cleaning.

[0181] In some embodiments, when the receptive base layer 110e generates eddy current heating in an alternating magnetic field operating at a frequency of 500 kHz, the skin depth is approximately 0.12 mm. The thickness of the base layer 110e is preferably 0.26 mm, which results in higher heating efficiency. However, the thicker the base layer 110e, the higher the energy required, resulting in unnecessary energy loss. Therefore, the thickness of the base layer 110e is preferably in the range of 30 μm to 0.2 mm, more preferably 30 μm to 0.1 mm. Considering the electrical and magnetic properties of the conductive and conductive magnetic materials, the corresponding alternating magnetic field operating frequency is in the range of 500 kHz to 20 MHz.

[0182] In some embodiments, the induction heater 331a of the planar spiral coil of the heating device 300a is made of Litz wire, which is a strand of twisted wire. The diameter of each wire is at least 1 / 4 of the skin depth. In some embodiments, the wire material of the induction heater 331a of the planar spiral coil has a rectangular cross-section, and the width of the rectangular cross-section of the wire material is less than 1 / 2.25 of the skin depth.

[0183] In some embodiments, the output voltage of the battery cell 310a of the heating device 300a is in the range of 2.5V to 6V, the output current is in the range of 2A to 10A, and the output power is in the range of 5W to 60W. During use, the base layer 110e can be heated to 250°C or even higher, 400°C, within 1 second under the influence of a magnetic field. Alternatively, the base layer 110e can be heated to 250°C or even higher, 400°C, within 0.5 seconds under the influence of a magnetic field, achieving an instant-in-puff user experience.

[0184] In some embodiments, during the heating process, the circuit board 320a of the heating device 300a determines the partially heated temperature of the base layer 110e by detecting the apparent ohmic resistance of the operating induction heater 331a. For example, Chinese patent application CN106163306A and others provide various details regarding determining the current temperature of a sensor that has been heated by a magnetic field based on electrical characteristics such as resonant voltage, current, or apparent ohmic resistance. The entire contents of these documents are incorporated herein by reference.

[0185] Alternatively, Figure 16 shows a schematic diagram of an aerosol generating article 100f according to another embodiment; in this embodiment, a temperature sensing channel 132f is arranged in the support seat 130f; the temperature sensing channel 132f extends from the surface of the support seat 130f to the base layer 110f; the temperature sensing channel 132f can be in the form of a hole or groove formed in the support seat 130f.

[0186] Accordingly, the heating device 300a includes:

[0187] The temperature sensor 380f is, for example, a thermocouple. When the aerosol-generating article 100f is received in the heating device 300a, the temperature sensor 380f can pass through the temperature sensing channel 132f and rest against the base layer 110f to sense the temperature during the heating process.

[0188] Alternatively, in some other variations, a temperature-sensitive element is arranged on the surface of the support base 130f that contacts the base layer 110f, and an electrical contact or electrical terminal conductively connected to the temperature-sensitive element is arranged on the surface of the support base 130f; when the aerosol-generating product 100f is received in the heating device 300a, the heating device 300a can detect the resistance value of the temperature-sensitive element through the electrical contact or electrical terminal, and thereby determine the heating temperature of the base layer 110f.

[0189] It should be noted that the specification and drawings of this application provide preferred embodiments of the present application, but are not limited to the embodiments described in this specification. Furthermore, it is possible for a person skilled in the art to make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the claims attached to this application.

Claims

1. An aerosol generating system, characterized in that: include: An aerosol-generating article comprising a base layer, and an aerosol-generating substrate bonded to the base layer; The aerosol-generating substrate can be heated to generate an aerosol; and a heating device, comprising a receiving chamber for receiving the aerosol generating article; Wherein, at least one positioning structure is arranged on the aerosol generating article; the positioning structure is configured to provide guidance when the aerosol generating article is received in the receiving cavity, so that the aerosol generating article is received in the receiving cavity according to a predetermined position or direction; The heating device further comprises: at least one heater, which is opposite to a portion of the aerosol generating substrate when the aerosol generating article is received in the receiving cavity in a predetermined position or orientation, thereby heating the opposite portion of the aerosol generating substrate.

2. The aerosol generating system according to claim 1, wherein: The positioning structure includes at least one of a hole, a groove or a notch formed on the base layer.

3. An aerosol generating system according to claim 1 or 2, characterized in that The positioning structure is arranged away from the aerosol generating substrate; And / or, the surface of the base layer has an exposed area not covered by the aerosol generating substrate, and the positioning structure is located in the exposed area.

4. An aerosol generating system according to claim 3, characterized in that The ratio of the exposed area to the surface area of ​​the base layer is 30% to 70%.

5. The aerosol generating system according to claim 1 or 2, characterized in that: The aerosol-generating article is substantially configured in the shape of a disk or disc; And / or the aerosol-generating article is configured to be in the shape of a donut with a central hole.

6. The aerosol generating system according to claim 1 or 2, characterized in that: The aerosol generating matrix is ​​a stripe or track pattern extending continuously on the surface of the base layer; Alternatively, the aerosol-generating substrate comprises a plurality of substrate units discretely or spaced apart on the surface of the base layer.

7. An aerosol generating system according to claim 1 or 2, characterized in that The substrate includes a first side and a second side opposite to each other; The aerosol-generating substrate is bonded to a first side of the base layer; The heater is located on a second side of the base layer and heats a portion of the aerosol-generating substrate from the second side when the aerosol-generating article is received in the receiving cavity.

8. An aerosol generating system according to claim 7, characterized in that The heater is configured to heat the opposite portion of the aerosol generating substrate from room temperature to 200° C. to 400° C. within 0.5 to 2 seconds.

9. An aerosol generating system according to claim 1 or 2, characterized in that The heater is a substantially planar heater; when the aerosol-generating article is received in the receiving cavity, the at least one heater is arranged substantially parallel to the aerosol-generating substrate.

10. An aerosol generating system according to claim 1 or 2, characterized in that The heating device comprises: A rotary driver is used to drive the aerosol generating article received in the receiving chamber to rotate around its central axis, thereby changing the portion of the aerosol generating substrate opposite to the heater.

11. An aerosol generating system according to claim 10, characterized in that The heater is arranged offset from a central axis of the receiving cavity and / or the aerosol-generating article.

12. An aerosol generating system according to claim 10, characterized in that The heater is configured to heat the portion of the aerosol generating substrate opposite to the portion of the aerosol generating substrate according to the user's puff to generate an aerosol that can satisfy one puff; The rotary drive is configured to drive the aerosol generating substrate received in the receiving chamber to rotate at a predetermined angle so that the portion of the aerosol generating substrate that has been heated is rotated to be offset from the heater, and the unheated portion or the fresh portion is rotated to be opposite to the heater.

13. An aerosol generating system according to claim 10, characterized in that The heating device is configured to: prevent the rotary drive from driving the aerosol-generating article to rotate when the heater is heating; and prevent the heater from starting heating when the rotary drive drives the aerosol-generating article to rotate.

14. An aerosol generating system according to claim 9, characterized in that The at least one heater is configured in the form of a planar spiral coil.

15. An aerosol generating system according to claim 1 or 2, characterized in that The aerosol-generating article further comprises: The support base is used to accommodate or support the base layer and the aerosol generating matrix.

16. An aerosol generating system according to claim 15, characterized in that A temperature sensing channel is arranged in the support base, and the temperature sensing channel passes through or extends from the surface of the support base to the base layer; when the aerosol generating product is received in the heating device for heating, the heating device can contact or abut against the base layer through the temperature sensing channel to sense the temperature of the base layer.

17. An aerosol-generating article, configured to be received in a heating device and heated to generate an aerosol; characterized in that: The aerosol-generating article is substantially configured in the shape of a disk or disc; And, the aerosol-generating article comprises: a base layer, and an aerosol generating substrate bonded to the base layer; the aerosol generating substrate being configured to generate an aerosol when heated by a heating device; The aerosol generating substrate is a stripe or track pattern extending continuously on the surface of the base layer; or, the aerosol generating substrate includes a plurality of substrate units discretely or spaced apart on the surface of the base layer.

18. An aerosol-generating article according to claim 17, wherein At least one positioning structure is arranged on the base layer; the positioning structure is configured to provide guidance when the aerosol generating product is received in the heating device, so that the aerosol generating product is received in the heating device according to a predetermined orientation.

19. The aerosol-generating article of claim 17, wherein: Also includes: The support base is used to accommodate or support the base layer and the aerosol generating matrix.

20. The aerosol-generating article of claim 17, wherein: Also includes: an outer shell defining at least a portion of an outer surface of the aerosol-generating article and containing or retaining the base layer and the aerosol-generating substrate; An airflow channel is defined in the housing through the aerosol generating article to provide an airflow path for air to pass through the aerosol generating article to carry the aerosol output; A small portion of the aerosol generating substrate is exposed in the air flow channel.

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