Aerosol generating system and aerosol generating product

Abstract

The invention provides an aerosol generating system and an aerosol generating product. Wherein the aerosol-generating system comprises: an aerosol-generating article comprising a base layer, and an aerosol-generating substrate bonded to the base layer, the aerosol-generating substrate being heated to generate an aerosol; the heating device comprises a receiving cavity for receiving the aerosol generating product; wherein a positioning structure is arranged on the aerosol generating product and is used for providing guidance when the aerosol generating product is received in the receiving cavity, so that the aerosol generating product is received in the receiving cavity according to a preset position or direction; the heating device further comprises at least one heater opposite the portion of the aerosol-generating substrate to heat the opposite portion of the aerosol-generating substrate. According to the aerosol-generating system, a positioning structure is arranged on the aerosol-generating article to enable the heating device to receive the aerosol-generating article according to a preset position, so that it is beneficial to align and heat the part to be heated of the aerosol-generating substrate with the heater.

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 system and an aerosol generating product. Background Art

[0002] Smoking products (e.g., cigarettes, cigars, etc.) burn tobacco to produce tobacco smoke during use. People try to replace these tobacco-burning products by making products that release compounds without burning. Examples of such products are heating devices that release compounds by heating rather than burning materials. 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 the aerosol-generating substrate to a heating element for heating by transmitting a tape-like aerosol-generating substrate; such a heating device transmits and heats the tape-like aerosol-generating substrate to allow a consistent aerosol delivery amount to be accurately provided to consumers each time. Summary of the invention

[0003] One embodiment of the present application provides an aerosol generating system, comprising:

[0004] 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

[0005] a heating device, comprising a receiving chamber for receiving the aerosol-generating article;

[0006] 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;

[0007] 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.

[0008] In some embodiments, the positioning structure is arranged away from the aerosol generating substrate;

[0009] 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.

[0010] In some embodiments, the exposed region accounts for 30% to 70% of the surface area of ​​the base layer.

[0011] In some embodiments, the aerosol-generating article is configured substantially in the shape of a disk or disc.

[0012] In some embodiments, the structure is configured in the shape of a donut with a central hole.

[0013] In some embodiments, the aerosol-generating substrate is a stripe or track pattern extending continuously on the surface of the base layer;

[0014] Alternatively, the aerosol-generating substrate comprises a plurality of substrate units discretely or spaced apart on the surface of the base layer.

[0015] In some embodiments, the substrate includes a first side and a second side that are opposite to each other;

[0016] The aerosol-generating substrate is bonded to a first side of the base layer;

[0017] 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.

[0018] In some embodiments, the heater is configured to heat the opposing portion of the aerosol-generating substrate from room temperature to 200° C. to 400° C. within 0.5 to 2 s.

[0019] In some embodiments, 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.

[0020] In some embodiments, the heating device comprises:

[0021] 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.

[0022] In some embodiments, the heater is arranged offset from a central axis of the receiving cavity and / or the aerosol-generating article.

[0023] 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 that can be satisfied in one puff.

[0024] In some embodiments, the rotational 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.

[0025] In some embodiments, the heating device is configured to: prevent the rotational drive from driving the aerosol-generating article to rotate when the heater is heating; and prevent the heater from starting heating when the rotational drive drives the aerosol-generating article to rotate.

[0026] In some embodiments, the at least one heater is configured in the form of a planar spiral coil.

[0027] In some embodiments, the aerosol-generating article further comprises:

[0028] The support base is used to accommodate or support the base layer and the aerosol generating matrix.

[0029] In some embodiments, 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 the base layer through the temperature sensing channel to sense the temperature of the base layer.

[0030] Another embodiment of the present application further provides an aerosol-generating article, which is configured to be received in a heating device and heated to generate an aerosol; the aerosol-generating article is basically configured in the shape of a disk or a disc; and the aerosol-generating article includes:

[0031] 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;

[0032] 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.

[0033] 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, so that the aerosol generating article is received in the heating device according to a predetermined orientation.

[0034] In some embodiments, it also includes:

[0035] The support base is used to accommodate or support the base layer and the aerosol generating matrix.

[0036] In some embodiments, it also includes:

[0037] 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;

[0038] 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;

[0039] A small portion of the aerosol generating substrate is exposed in the air flow channel.

[0040] 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

[0041] 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.

[0042] Figure 1 is a schematic diagram of an aerosol generating article provided by an embodiment;

[0043] Figure 2 is a schematic diagram of an aerosol generating system provided by an embodiment;

[0044] Figure 3 is a schematic diagram of the structure of a heater provided by an embodiment;

[0045] Figure 4 is a schematic diagram of an aerosol generating article provided by yet another embodiment;

[0046] Figure 5 is a schematic diagram of an aerosol generating article provided by yet another embodiment;

[0047] Figure 6 is a schematic diagram of an aerosol generating article provided by yet another embodiment;

[0048] Figure 7 is a schematic diagram of an aerosol generating article provided by yet another embodiment;

[0049] Figure 8 is a structural schematic diagram of a heater provided by yet another embodiment;

[0050] Fig. 9 yes Figure 8 A schematic diagram of the structure of the middle heater from one perspective;

[0051] Fig.10 yes Figure 8 A schematic diagram of the structure of the central heater from another perspective;

[0052] Fig.11 is a schematic structural diagram of a heater according to another embodiment;

[0053] Fig.12 is a schematic diagram of a heating curve provided by an embodiment;

[0054] Fig.13 is a schematic structural diagram of an aerosol generating article from one perspective of yet another embodiment;

[0055] Fig.14 yes Fig.13 A schematic cross-sectional view of an aerosol generating article from one perspective;

[0056] Fig.15 is a cross-sectional schematic diagram of an aerosol generating article according to another embodiment from one viewing angle;

[0057] Fig.16 FIG. 4 is a cross-sectional schematic diagram of an aerosol generating article according to another embodiment from one perspective. DETAILED DESCRIPTION

[0058] 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.

[0059] 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.

[0060] For example Figure 1 A schematic diagram of an aerosol generating article 100 of an embodiment is shown; in this embodiment, the aerosol generating article 100 is basically configured to be in the shape of a ring. Or in some other variations, the aerosol generating article 100 is configured to be in the shape of an ellipse, triangle, quadrilateral, polygon, etc. In an embodiment, the aerosol generating article 100 is basically configured to be in the form of a disk or disc having a central hole 111.

[0061] exist Figure 1 In the embodiment of the invention, the aerosol generating article 100 comprises:

[0062] A sheet-shaped base layer 110 and an aerosol generating substrate 120 formed on or combined with the base layer 110 .

[0063] In some embodiments, the base layer 110 provides rigidity to the aerosol generating article 100; for example, the base layer 110 is rigid. In some embodiments, the base layer 110 may be made of inorganic oxide materials such as ceramics or glass, or inorganic metals or alloys such as stainless steel, aluminum, aluminum alloys or tin foil, or may be made of organic polymer plastic materials such as PEEK, PI, PPS, PTFE, PA, PC, PMMA, etc.

[0064] In some embodiments, the thickness of the base layer 110 is between 0.01 mm and 1 mm. In some embodiments, the diameter of the disc-shaped base layer 110 is between 4 mm and 200 mm.

[0065] 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, electrochemical etching, indentation, frosting, etc., so as to form a rough surface, such as a frosted surface; the rough surface of the base layer 110 is advantageous 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.

[0066] 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. And 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.

[0067] In some embodiments, aerosol-generating substrate 120 may be used to refer to a substrate capable of releasing volatile compounds that can form an aerosol. The volatile compounds can be released to generate an aerosol by heating aerosol-generating substrate 120. In some typical embodiments, aerosol-generating substrate 120 is or may include a solid at room temperature.

[0068] In some embodiments, the aerosol generating substrate 120 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; alternatively, the solid aerosol generating substrate 120 may contain additional tobacco or non-tobacco volatile flavor compounds to be released when the substrate is heated.

[0069] 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 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 species or components, derivatives or extracts thereof, and the plant species 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.

[0070] In some optional embodiments, the aerosol generating substrate 120 further comprises: a flavor; the flavor may comprise a volatile flavor component. For example, in a typical embodiment, the flavor may provide a flavor selected from menthol, lemon, vanilla, orange, wintergreen, cherry and cinnamon; the flavor may comprise a volatile tobacco flavor compound released from the aerosol generating substrate 120 when heated.

[0071] In some optional embodiments, the aerosol-generating substrate 120 further includes: an aerosol-forming agent or a smoke-generating agent; the aerosol-forming agent or the smoke-generating agent helps to form a dense and stable aerosol during use. In some specific embodiments, the aerosol-forming agent or the smoke-generating agent is or includes at least one of glycerol, glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, etc.

[0072] In some optional embodiments, the aerosol generating matrix 120 also 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.

[0073] In some optional embodiments, the aerosol-generating substrate 120 further includes: 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 aerosol-generating substrate 120 during use. For example, in some specific embodiments, the reinforcing fibers include at least one of coniferous wood fibers, hardwood fibers, hemp fibers or flax fibers, bamboo fibers, etc.

[0074] 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.

[0075] 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.

[0076] In some embodiments, the surface density of aerosol-generating substrate 120 is 20 to 150 g / m 2 .

[0077] In some embodiments, the water content of the aerosol-generating substrate 120 is 6 to 14 wt %.

[0078] In some embodiments, the aerosol-generating substrate 120 is formed on the surface of the base layer 110 by rolling or casting.

[0079] In some embodiments, the aerosol generating substrate 120 is formed only on one side surface of the base layer 110, and 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 other variations, the aerosol generating substrate 120 is formed on both sides of the base layer 110 at the same time, for example, the aerosol generating substrate 120 may include a first aerosol generating substrate formed on the first side surface of the base layer 110, and a second aerosol generating substrate formed on the second side surface of the base layer 110.

[0080] In some embodiments, the aerosol generating substrate 120 is disposed continuously on the surface of the base layer 110; for example, Figure 1 In the illustrated embodiment, 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. Figure 1 In the embodiment, the aerosol generating substrate 120 is in a closed annular shape. Alternatively, in some other variations, the aerosol generating substrate 120 is arranged discontinuously on the surface of the base layer 110; for example, the aerosol generating substrate 120 includes a plurality of substrate units arranged discretely or at intervals on the base layer 120.

[0081] In some embodiments, the aerosol-generating substrate 120 has a thickness of 0.05 to 1 mm.

[0082] exist Figure 1 In the embodiment of the invention, the aerosol generating substrate 120 does not completely cover the side surface of the bonded base layer 120. Figure 1As shown, 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 about 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 arranged on the exposed area 115.

[0083] 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 product 100. The unique properties of the aerosol generating product 100 include various information of the aerosol generating product, such as authenticity information, expiration date and place of origin. Thus, by obtaining the above various information of the aerosol generating product through the first identifier, it can be determined whether the aerosol generating product is authentic, or when the aerosol generating product has expired and where the aerosol generating product is manufactured. Therefore, the user may not inadvertently use an inauthentic aerosol generating product, an expired aerosol generating product, or an aerosol generating product from an unexpected source location.

[0084] In some embodiments, positioning structures such as positioning holes, positioning grooves, etc. are used to provide guidance for receiving and positioning the aerosol generating product 100 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.

[0085] according to Figure 1 As shown, the base layer 110 is configured to be an annular shape having a mesopore 111. The aerosol generating substrate 120 is arranged around the mesopore 111. In some embodiments, the diameter of the mesopore 111 is between 0.4 and 20 mm.

[0086] Another embodiment of the present application further provides an aerosol generating system, comprising:

[0087] an aerosol generating article 100;

[0088] The heating device 300 is used to receive the aerosol generating product 100 and heat it to generate an aerosol for the user to inhale.

[0089] according to Figure 2 As shown, the heating device 300 includes:

[0090] A rechargeable battery cell 310 for power supply;

[0091] The circuit board 320 is, for example, a PCB board or an FPC board, on which a circuit is arranged;

[0092] A heating mechanism 340 , wherein in use, the aerosol generating article 100 can be received in the heating mechanism 340 through an opening or opening on the surface of the heating device 300 to be heated or removed;

[0093] The nozzle 350 is used for a user to inhale the aerosol generated by the aerosol generating article 100 through the nozzle 350 .

[0094] Accordingly, in some embodiments, the heating device 300 further includes:

[0095] The positioning coupling structure is used to couple with the positioning structure on the aerosol generating product 100; when the aerosol generating product 100 is received in the heating device 300, the positioning coupling structure cooperates with the positioning structure so that the aerosol generating product 100 is received in the heating device 300 according to a predetermined position or orientation. The positioning coupling structure is, for example, a hole, a convex point, or other structure that matches the positioning structure.

[0096] according to Figure 2 As shown, the heating mechanism 340 includes:

[0097] a heater 330, which is offset from the center of the aerosol-generating article 100 and opposite to a portion of the aerosol-generating substrate 120 of the aerosol-generating article 100 when the aerosol-generating article 100 is received in the heating mechanism 340; thereby, the heater 330 can be used to heat the opposite portion of the aerosol-generating substrate 120;

[0098] The rotary driver 370, such as a motor or an electric motor, is used to drive the aerosol generating substrate 120 to rotate around its axis, thereby changing the position of the part relative to the heater 330. In some embodiments, the rotary driver 370 is a motor with a rotation output end. During assembly, the rotary driver 370 extends the rotation 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.

[0099] 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, an area of ​​approximately 15 to 30 square millimeters of the aerosol generating substrate 120 opposite to the heater 330 is heated, thereby generating an aerosol that can satisfy one puff.

[0100] In some embodiments, the total area of ​​the aerosol generating substrate 120 may be sufficient for approximately 6 to 15 puffs by gradually varying the rotation in combination with heating on the heater 330 .

[0101] In some embodiments, the heater 330 is fixed; alternatively, the heater 330 is non-rotatable or non-movable.

[0102] according to Figure 2 As shown, the heating mechanism 340 also includes:

[0103] The support 360 is used to support or accommodate the aerosol generating article 100 and the rotation driver 370. After assembly, the rotation driver 370 is mounted and held on the support 360. The aerosol generating article 100 is received in the support 360 and coupled to the rotation driver 370 so as to be driven to rotate by the rotation driver 370.

[0104] In some embodiments, the rotation of the aerosol-generating article 100 is substantially rotation in the plane of the aerosol-generating article 100 . In other words, the rotation of the aerosol-generating article 100 is rotation in a plane perpendicular to the central axis of the aerosol-generating article 100 .

[0105] In some embodiments, the rotation driver 370 drives the rotation of the aerosol generating article 100, including clockwise and / or counterclockwise rotation around the aerosol generating article 100. Or in some embodiments, the rotation driver 370 drives the aerosol generating article 100 to rotate in both counterclockwise and clockwise directions. And in some embodiments, the rotation speed at which the rotation driver 370 drives the aerosol generating article 100 to rotate is between 0.5 and 5 rpm. And, the rotation speed at which the rotation driver 370 drives the aerosol generating article 100 to rotate is basically uniform or constant. Or in some other embodiments, the rotation speed at which the rotation driver 370 drives the aerosol generating article 100 is variable, for example, gradually faster or gradually slower.

[0106] In some embodiments, the rotary driver 370 is configured to drive the aerosol generating article 100 to rotate according to a predetermined rotation angle or stroke. For example, in some embodiments, after each puffing action is completed, the rotary driver 370 drives the aerosol generating article 100 to rotate by a predetermined angle, so that the heated part of the aerosol generating substrate 120 is rotated to stagger with the heater 330, and the unheated part or the fresh part is rotated to be opposite to the heater 330, so as to facilitate heating during the next puffing. For another example, in some embodiments, before each puffing action, the rotary driver 370 drives the aerosol generating article 100 to rotate by a predetermined angle based on the input signal generated by the user operating the input element (such as a mechanical button, a membrane button, a mechanical switch, a rotary encoder, etc.). For example, before puffing, the rotary driver 370 drives the aerosol generating article 100 to rotate by a predetermined angle according to the user's operation, so that the unheated part or the fresh part of the aerosol generating substrate 120 is rotated to be opposite to the heater 330, and then the heater 330 can be controlled to heat to generate an aerosol for the user to puff.

[0107] In some embodiments, the rotational drive 370 drives the aerosol-generating article 100 to rotate within an angle range of approximately 20° to 60°.

[0108] 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 in each heating to generate aerosol; while other portions of the aerosol-generating substrate 120 are not heated into aerosol.

[0109] In some embodiments, during each heating, the portion of the aerosol-generating substrate 120 opposite to the heater 330 is heated to generate an aerosol that satisfies one puff. In some embodiments, during each heating, the portion of the aerosol-generating substrate 120 opposite to 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, thereby satisfying one puff.

[0110] according to Figure 2 As shown, the support 360 has a notch 361; when the aerosol generating article 100 is received in the support 360, part of the aerosol generating article 100 is exposed in the notch 361. The heater 330 is at least partially arranged in the notch 361, so that the heater 330 can be opposite to the part of the aerosol generating article 100 in the notch 361, so as to heat it during inhalation.

[0111] In some embodiments, during each puff, the heater 330 is configured to quickly heat the portion of the aerosol-generating substrate 120 relative to generate an aerosol. For example, in some embodiments, the heater 330 is configured to quickly heat the portion of the aerosol-generating substrate 120 relative to generate an aerosol from room temperature to 200° C. to 400° C. within about 0.5 to 2 seconds to quickly generate an aerosol.

[0112] For example Fig.12 A schematic diagram showing a heating curve of the heater 330 heating the relative portion of the aerosol generating substrate 120 in one puff in one embodiment; the heating process includes:

[0113] Heating stage S1: Rapidly heating from room temperature T0 to preset temperature T1 within time t1;

[0114] Constant temperature stage S2: keep the heating temperature basically maintained at the preset temperature T1 for heating until time t2;

[0115] Cooling stage S3: cooling from the preset temperature T1 to a temperature lower than the preset temperature T2 or the room temperature T0 at time t3.

[0116] In some embodiments, the time t1 of the heating stage S1 is less than 2s, for example, the time t1 of the heating stage S1 is 1s; and the time (time t2-t1) of the heating stage S2 is less than 4s, for example, the duration of the heating stage S2 is 3s; and the time (time t3-t2) of the cooling stage S3 is less than 3s, for example, the time of the cooling stage S3 is 1s. And in some embodiments, the total time of the heater 330 from the start of heating to cooling down to a temperature lower than the preset temperature T2 or the room temperature T0 is less than 5s.

[0117] 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 a specific embodiment, the preset temperature T1 is 250°C. And, the preset temperature T2 is set to 50°C, preferably the preset temperature T2 is 48°C, and more preferably the preset temperature T2 is room temperature.

[0118] In some other embodiments, during the temperature rise stage S1 of the heating process, the power provided by the heating device 300 to the heater 330 flows unrestricted or uninterruptedly to quickly generate heat and achieve rapid temperature rise. And in some other embodiments, during the constant temperature stage S2, the power provided by the heating device 300 to the heater 330 may be disconnected or alternately cycled, thereby being pulsed, until time t2.

[0119] In some further embodiments, the heating device 300 is configured as follows:

[0120] When the heater 330 is heating, the rotary drive 370 is prevented from driving the aerosol-generating article 100 to rotate relative to the heater 330; and when the rotary drive 370 drives the aerosol-generating article 100 to rotate, power is prevented from being supplied to the heater 330 to initiate heating.

[0121] For example, Figure 3 In the illustrated embodiment, the heater 330 may be substantially square; or in some alternative embodiments, the heater 330 may be substantially fan-shaped; the fan-shaped heater 330 is advantageously adapted to the portion of the annular aerosol generating article 100 .

[0122] 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.

[0123] For example Figure 3 A schematic diagram of a heater 330 according to an embodiment is shown. In this embodiment, the heater 330 includes a substrate 331 and a heating element 332 formed on or bonded to the substrate 331 .

[0124] In some embodiments, the substrate 331 is used to support the heating element 332. The substrate 331 is electrically insulating. The substrate 331 is rigid. The substrate 331 is, for example, ceramic, glass, etc.

[0125] 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, etc.; 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, nickel alloy, cobalt alloy, zirconium alloy, titanium alloy, nickel-chromium alloy, nickel-iron alloy, iron-chromium alloy, iron-manganese-aluminum-based alloy, or stainless steel.

[0126] exist Figure 3 In the illustrated embodiment, the heating element 332 includes a conductive track formed on the substrate 331. The conductive track can be a conductive track formed on the substrate 331 by slurry printing, spraying, printing, etc., or can be a conductive track pattern formed by etching a conductive sheet precursor and then bonded to the substrate 331 by pasting or mechanical fixing. In some embodiments, the conductive track is a patterned conductive track, such as a circuitous, meandering conductive track. Figure 3 In the illustrated embodiment, the heating element 332 in the form of a conductive track includes an increased track width portion 3321, and the increased track width portion 3321 defines an electrical connection area forming the heating element 332. The conductive lead 333 is electrically connected to the electrical connection area defined by the increased track width portion 3321, thereby conducting current on the heating element 332. The conductive lead 333 is then electrically connected to the circuit board 320, so that the circuit board 320 controls the supply of power to the 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.

[0127] In some 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 may be an independently 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 to the heating element 332 generates heat by being penetrated by the magnetic field, thereby heating a portion of the aerosol generating substrate 120 to generate an aerosol.

[0128] or Figure 4 A schematic diagram of an aerosol generating article 100a of yet another embodiment is shown; in this embodiment, the aerosol generating article 100a comprises:

[0129] A substantially annular substrate layer 110a and an aerosol generating substrate 120a located on the substrate layer 110a; the aerosol generating substrate 120a includes a plurality of substrate units discretely arranged on the substrate layer 110a. The plurality of discrete substrate units of the aerosol generating substrate 120a can be heated by the heater 330 in sequence and independently to generate aerosol.

[0130] In some embodiments, the mass of each substrate unit of the aerosol-generating substrate 120a is about 5 mg to 60 mg. In some embodiments, the thickness of each substrate unit of the aerosol-generating substrate 120a is about 0.1 mm to 1.0 mm. In some embodiments, the area of ​​each substrate unit of the aerosol-generating substrate 120a is about 9 mm. 2 ~80mm 2 In some embodiments, the weight of the substrate unit of the aerosol-generating substrate 120a is 5 mg to 50 mg. Figure 4 As shown in , several substrate units of the aerosol generating substrate 120a are substantially circular in shape; and several substrate units are arranged around the middle hole 111a. Or in some other variations, several substrate units of the aerosol generating substrate 120a can be configured into square, polygonal, triangular, star, semicircular, heart-shaped, cross-shaped, water drop-shaped, etc.

[0131] In use, when the aerosol generating article 100a is received in the heating device 300, the aerosol generating article 100a can be driven to rotate by the rotation driver 370, thereby rotating the aerosol generating substrate 120a to change the relative position of the substrate unit and the heater 330. In each puff, the relative substrate unit can be heated by the heater 330 to generate an aerosol that satisfies one puff.

[0132] according to Figure 4 As shown, the substrate layer 110a of the aerosol generating article 100a is also provided with a plurality of positioning structures 112a, such as a plurality of positioning holes 112a arranged on the substrate layer 110a. The positioning holes 112a may be through holes penetrating the substrate layer 110a, or may be blind holes or grooves on one side surface of the substrate layer 110a.

[0133] In one aspect, the positioning structure 112a is used to provide angular positioning when the aerosol generating product 100a is received in the heating device 300; through positioning, the aerosol generating product 100a can 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.

[0134] In another aspect, the positioning structure 112a is used to provide an angle indication of the rotation of the aerosol generating article 100a driven by the rotation driver 370; for example, in some embodiments, a sensor such as a camera, an infrared light sensor, etc. is arranged in the heating device 300 to sense the positioning structure 112a during the rotation of the aerosol generating article 100a to determine the rotation angle or stroke of the aerosol generating article 100a, and then control the rotation driver 370 to stop driving so that the rotation of the aerosol generating article 100a is maintained at a predetermined angle. Specifically, before the aerosol generating article 100a rotates, the sensor is aligned with one of the positioning structures 112a, and when the aerosol generating article 100a rotates until the sensor senses that it is aligned with the next positioning structure 112a, the rotation driver 370 stops driving the aerosol generating article 100a to rotate, which is beneficial for the angular positioning of the rotation process.

[0135] exist Figure 4 In the illustrated embodiment, the plurality or several positioning structures 112a are arranged at intervals around the circumference of the base layer 110a; the plurality or several positioning structures 112a are close to the outer edge of the base layer 110a in the radial direction.

[0136] or Figure 5 A schematic diagram of an aerosol-generating article 100b of yet another embodiment is shown, in which the aerosol-generating article 100b comprises:

[0137] 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 heated by the heater 330 in sequence and independently to generate aerosol.

[0138] exist Figure 5In the illustrated embodiment, 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.

[0139] In some embodiments, a plurality of protruding teeth are arranged on the rotation output end of the rotation driver 370, such as a motor; during use, the rotation output end of the rotation 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 rotation driver 370, such as a motor, drives the rotation of the aerosol generating product 100b.

[0140] 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, so that the aerosol generating article 100b is received in the heating device 300 according to a predetermined position. This is advantageous for aligning the substrate unit of the aerosol generating substrate 120b with the heater 330b.

[0141] or Figure 6 A schematic diagram of an aerosol-generating article 100c of yet another embodiment is shown, in which the aerosol-generating article 100c comprises:

[0142] 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 arranged at intervals in the radial direction.

[0143] 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 the substrate units of adjacent aerosol-generating substrates 120c along the radial direction of the aerosol-generating article 100c is between 0.1 and 5 mm.

[0144] In some embodiments, the plurality of spaced-apart annular substrate units of the aerosol-generating substrate 120c are arranged to have different aerosol characteristics; the aerosol characteristics may include the fragrance, color, etc. of the aerosol. In some specific embodiments, the plurality of substrate units of the aerosol-generating substrate 120c may have different fragrances; for example, the plurality of substrate units may have a fragrance of menthol, lemon, vanilla, orange, holly, cherry, cinnamon, etc. Or in some other specific embodiments, the plurality of substrate units of the aerosol-generating substrate 120c may have different colors.

[0145] or Figure 7 A schematic diagram of an aerosol-generating article 100d of yet another embodiment is shown, in which the aerosol-generating article 100d comprises:

[0146] 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.

[0147] 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.

[0148] Figures 8 to 10 A schematic diagram of a heating device 300a of another embodiment is shown; in this embodiment, a heating mechanism 340a of the heating device 300a includes:

[0149] Battery cell 310a, circuit board 320a;

[0150] The heating mechanism 340a defines a receiving cavity 350a for accommodating or receiving the aerosol generating article 100; the heating mechanism 340a also includes a plurality of discretely arranged heaters 331a; in this embodiment, the heater 331a is in the form of a planar spiral coil. The heater 331a may include at least one of a resistive heater, an electromagnetic induction heater, or an infrared heater.

[0151] When the aerosol generating article 100 is received in the receiving chamber 350a, the plurality of heaters 331a are respectively opposite to different parts or regions of the aerosol generating article 100. The circuit board 320a is configured to control the plurality of heaters 331a to be heated one after another in a predetermined order according to the user's puff. In some embodiments, the circuit board 320 is configured to control the plurality of heaters 331a to not heat at the same time; so that, for example, during each puff of the user, the circuit board 320a controls only one heater 331a to heat and generate an aerosol that satisfies one puff.

[0152] In some embodiments, during multiple puffs by the user, the circuit board 320a controls the plurality of heaters 331a to be activated one after another in a predetermined order. Figure 8 As shown in , it can be in a clockwise or counterclockwise direction. Specifically, for example: when the user takes the first puff, the circuit board 320a provides power to the first heater 331a closest to the circuit board 320a for heating, generating an aerosol for one puff; when the user takes the next puff, the circuit board 320a provides power to the second heater 331a that is adjacent to the last activation in the clockwise direction for heating, generating an aerosol for one puff; and this is performed sequentially until all the heaters 331a are heated, the matrix unit of the aerosol generating product 100 has been puffed, and the user is prompted to replace the new aerosol generating product 100. In the above implementation, starting the heaters 331a separately in sequence instead of starting the heating at the same time means minimizing the unnecessary consumption of the aerosol generating matrix and reducing the waste of energy. Or in some other implementations, the order in which several heaters 331a are activated in sequence according to a predetermined order is performed sequentially along the direction of the interval arrangement.

[0153] according to Figures 8 to 10 As shown, in this embodiment, several heaters 331a are configured as planar heaters. Figures 8 to 10 As shown, a plurality of heaters 331a are arranged in the receiving cavity 350a, and can abut against or contact the aerosol generating product 100 when the aerosol generating product 100 is received in the receiving cavity 350a. The heater 331a is configured in the form of a planar spiral coil, and can heat the aerosol generating product 100 by generating resistive Joule heat, or by generating a magnetic field to induce eddy current heating of the base layer 110 of the aerosol generating product 100.

[0154] according to Fig. 9 and Fig.10 As shown, the heating mechanism 340a also includes:

[0155] The substrate 332a is located in the receiving cavity 350a to support or hold the heater 331a.

[0156] In some embodiments, the heater 331a and the substrate 332a are prepared separately and then mechanically connected or fastened together. Alternatively, in some 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.

[0157] or in Fig.11 FIG. 3 is a schematic diagram of a heating mechanism 340b of another embodiment, in which the heating mechanism 340b includes:

[0158] A receiving chamber 350b for receiving or containing the aerosol generating article 100;

[0159] The heater 331b is arranged adjacent to the receiving cavity 350b 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 in a non-contact manner. In some embodiments, the heater 331b can be heated by resistive heating or electromagnetic heating.

[0160] 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.

[0161] Fig.13 and Fig.14 A schematic diagram of an aerosol-generating article 100d of yet another embodiment is shown, in which the aerosol-generating article 100d comprises:

[0162] A base layer 110d, and an aerosol generating substrate 120d formed on a first side surface of the base layer 110d;

[0163] The support seat 130d is used to accommodate and fix the base layer 110d; alternatively, the base layer 110d is firmly supported and retained on the support seat 130d.

[0164] exist Fig.13 and Fig.14 In the embodiment, the support seat 130d is in the shape of a sheet or a plate, and a surface of the support seat 130d has a recess 131d; the base layer 110d is at least partially accommodated and retained in the recess 131d.

[0165] according to Fig.13 and Fig.14 As shown, the support base 130d is attached to the second side surface of the base layer 110d and covers the second side surface of the base layer 110d. Also, at least part of the aerosol generating substrate 120d is exposed outside the support base 130d.

[0166] In some embodiments, the base layer 110d is used to carry the aerosol generating substrate 120d and is in direct contact with the aerosol generating substrate 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, and can also 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.

[0167] 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.

[0168] Or in some other embodiments, the base layer 110d is only used to support the aerosol generating substrate 120d; the base layer 110d cannot be heated by induction to heat the aerosol generating substrate 120d. Accordingly, the aerosol generating substrate 120d contains magnetic particles such as iron powder particles, so that the aerosol generating substrate 120d can be heated by the internally doped magnetic particles under the penetration of the magnetic field. In this case, the base layer 110d can be an insulating material, such as glass, ceramics and fiber materials.

[0169] 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.

[0170] In use, the aerosol generating product 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 only provides a packaging or shell for the aerosol generating product 100d sold separately; in use, the user uses fingers to pick out or pour out the integrally connected base layer 110d and the aerosol generating matrix 120d from the support base 130d, and then receives them separately in the heating device 300a for heating.

[0171] or Fig.15 A schematic diagram of an aerosol generating article 100e according to another alternative embodiment is shown, in which the aerosol generating article 100e comprises:

[0172] A base layer 110e, and an aerosol generating substrate 120e formed on a first side surface of the base layer 110e;

[0173] The housing includes a support base 130e and an upper cover 140e, and a mounting space for accommodating and holding the base layer 110e / aerosol generating matrix 120e is formed therebetween. In the selling state, the aerosol generating matrix 120e is shielded and covered by the upper cover 140e, which is beneficial for keeping the aerosol generating matrix 120e waterproof and moisture-proof.

[0174] 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.

[0175] In some embodiments, the upper cover 140e and the support base 130e jointly define the outer shell or outer surface of the aerosol generating product 100e. In use, the upper cover 140e and the support base 130e of the aerosol generating product 100e can be received as a whole in the heating device 300a for heating. Accordingly, when they are received as a whole in the heating device 300a, a fastening component such as a buckle or a magnetic attraction can be provided in the heating device 300a to keep them firmly in the heating device 300a.

[0176] exist Fig.15 In the illustrated embodiment, an air flow 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 air flow channel 150e, or the air flow channel 150e at least partially flows through the aerosol generating substrate 120e. When the aerosol generating article 100e is received in the heating device 300a, the air flow channel 150e at least partially provides air to pass through the aerosol generating article 100e and carry the aerosol output, such as Fig.15 As shown by the arrow R1.

[0177] 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 outer shell defined by the upper cover 140e and the support base 130e during long-term use, and facilitating cleaning.

[0178] In some embodiments, when the sensitive base layer 110e generates eddy current heat under an alternating magnetic field with an operating frequency of 500kHz, the skin depth is about 0.12mm, and the thickness of the base layer 110e is preferably 0.26mm, that is, the heating efficiency is relatively high at this time, but the thicker the base layer 110e is, the higher the energy it requires, resulting in unnecessary energy loss. Therefore, the thickness of the base layer 110e is preferably in the range of 30μm to 0.2mm, more preferably 30 microns to 0.1mm, and combined with the electrical and magnetic properties of the conductive material and the conductive magnetic material, the operating frequency of the corresponding alternating magnetic field is in the range of 500kHz to 20MHz.

[0179] In some embodiments, the induction heater 331a of the planar spiral coil of the heating device 300a is made of a Litz wire twisted with multiple wire strands, and the diameter of each wire strand is at least less than 1 / 4 of the skin depth. In some embodiments, the wire material of the induction heater 331a of the planar spiral coil is rectangular in cross section, and the width of the rectangular cross section of the wire material is less than 1 / 2.25 of the skin depth.

[0180] 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. In use, the heating temperature of the base layer 110e can be raised to 250°C or even higher to 400°C within 1s under the penetration of the magnetic field; or the heating temperature of the base layer 110e can be raised to 250°C or even higher to 400°C within 0.5s under the penetration of the magnetic field, so as to achieve the user experience of instant inhalation.

[0181] In some embodiments, during the heating process, the circuit board 320a of the heating device 300a determines the temperature of the partially heated portion of the base layer 110e by detecting the apparent ohmic resistance of the induction heater 331a in operation. For example, Chinese patent application CN106163306A and others provide a variety of details on determining the current temperature of a sensor that is penetrated by a magnetic field and generates heat according to electrical characteristics such as resonant voltage, current or apparent ohmic resistance, and the entire text of the above document is incorporated herein by reference.

[0182] or Fig.16 A schematic diagram of an aerosol generating article 100f of yet another embodiment is shown; in this embodiment, a temperature sensing channel 132f is arranged in the support seat 130f; the temperature sensing channel 132f penetrates 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.

[0183] Accordingly, the heating device 300a comprises:

[0184] The temperature sensor 380f is, for example, a thermocouple. When the aerosol generating product 100f is received in the heating device 300a, the temperature sensor 380f can pass through the temperature sensing channel 132f and abut against the base layer 110f to sense the temperature during the heating process.

[0185] Or in some other varied embodiments, a temperature-sensitive element is arranged on the surface of the support seat 130f that contacts the base layer 110f, and an electric contact or electric terminal that is conductively connected to the temperature-sensitive element is arranged on the surface of the support seat 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 electric contact or electric terminal, and then determine the heating temperature of the base layer 110f.

[0186] 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 system, It is 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. An aerosol generating system according to claim 1, It is characterized in that 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, It is 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, It is characterized in that The ratio of the exposed area to the surface area of ​​the base layer is 30% to 70%.

5. An aerosol generating system according to claim 1 or 2, It is 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. An aerosol generating system according to claim 1 or 2, It is 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, It is 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, It is 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, It is 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, It is 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, It is 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, It is 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, It is 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, It is 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, It is 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 article according to claim 15, It is 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; It is 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, It is characterized in that 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. An aerosol-generating article according to claim 17, It is characterized in that 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, It is characterized in that 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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