Aerosol-generating article, aerosol-generating system, heating device, and susceptor

Abstract

The invention provides an aerosol generating product, an aerosol generating system, a heating device and a receptor. Wherein the aerosol-generating article comprises: an aerosol-generating substrate configured to generate an aerosol when heated; the receptor can generate eddy current in a changing magnetic field to generate heat so as to heat the aerosol generating substrate; the susceptor comprises at least one woven mesh, the woven mesh comprises a plurality of first wires extending in the first direction and a plurality of second wires extending in the second direction, and at least one of the first wires and the second wires can generate eddy current in a changing magnetic field to generate heat. According to the aerosol generating product, the aerosol generating substrate is heated by the susceptor of the woven mesh, so that the absorption and utilization efficiency of the heat of the susceptor by the aerosol generating substrate is improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of heat-not-burn aerosol generation, and in particular to an aerosol generating product, an aerosol generating system, a heating device and a receptor. Background Art

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

[0003] An example of such a product is a heating device that releases a compound by heating rather than burning a material. For example, the material may be tobacco or other non-tobacco products that may or may not contain nicotine. Known tobacco or other non-tobacco products heat the tobacco or other non-tobacco products by arranging an inductive susceptor, such as a sheet-like metal susceptor, inside the susceptor to induce eddy current heating to heat the tobacco or other non-tobacco products. Summary of the invention

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

[0005] an aerosol generating substrate configured to generate an aerosol when heated;

[0006] A receptor, which can generate eddy currents and generate heat in a changing magnetic field, thereby heating the aerosol generating substrate; the receptor comprises at least one woven mesh, the woven mesh comprises a plurality of first wires extending in a first direction, and a plurality of second wires extending in a second direction, at least one of the first wires and the second wires can generate eddy currents and generate heat in a changing magnetic field.

[0007] In some embodiments, the first direction is substantially perpendicular to the second direction.

[0008] In some embodiments, each of the first and / or second filaments has a circular, oval, rectangular, triangular, or polygonal cross-sectional shape.

[0009] In some embodiments, the diameter or width of the first filament is substantially equal to the diameter or width of the second filament;

[0010] And / or, each of the first and / or second wires may have the same diameter or width.

[0011] In some embodiments, the diameter or width of the first filament is greater than the diameter or width of the second filament;

[0012] And / or, each of the first and / or second wires may have a different diameter or width.

[0013] In some embodiments, each of the first and / or second wires has a diameter or width of 0.01-0.3 mm.

[0014] In some embodiments, the mesh size or width of the woven mesh may be between 20 micrometers and 2000 micrometers.

[0015] In some embodiments, the woven mesh has a mesh density between 20 and 150 filaments per centimeter.

[0016] In some embodiments, a ratio of the area of ​​the meshes of the woven mesh to the total area of ​​the woven mesh may be between 40% and 90%.

[0017] In some embodiments, the Curie temperature of the first filament and / or the second filament is greater than 400°C;

[0018] And / or, the Curie temperature of the first filament is greater than the Curie temperature of the second filament.

[0019] In some embodiments, the susceptor is arranged to be located within the aerosol generating substrate;

[0020] and / or, the susceptor is completely surrounded or enclosed by the aerosol-generating substrate;

[0021] And / or, the aerosol-generating substrate is partially located inside the susceptor and partially located outside the susceptor.

[0022] In some embodiments, the susceptor is arranged along the longitudinal axis of the aerosol-generating article.

[0023] In some embodiments, the susceptor has an extension length no less than 70% of the extension length of the aerosol-generating substrate.

[0024] In some embodiments, the susceptor is substantially flat or planar.

[0025] In some embodiments, the width of the susceptor is between 40% and 90% of the diameter of the aerosol-generating base and / or aerosol-generating article.

[0026] In some embodiments, the susceptor is configured to be a cylinder formed by winding the braided mesh.

[0027] In some embodiments, the susceptor is disposed around the aerosol-generating substrate.

[0028] In some embodiments, the susceptor is non-closed in the circumferential direction;

[0029] And / or, the susceptor is provided with a side opening penetrating the susceptor in a longitudinal direction.

[0030] In some embodiments, the susceptor comprises only one layer of the woven mesh;

[0031] Alternatively, the susceptor comprises at least two layers of the woven mesh arranged in a laminated or stacked manner.

[0032] In some embodiments, the aerosol-generating substrate comprises a plurality of substrate units discretely arranged on the susceptor.

[0033] In some embodiments, the plurality of substrate units are configured to be heated sequentially one after another in a predetermined order to generate aerosol sufficient for one puff in each heating.

[0034] In some embodiments, the susceptor comprises a plurality of the knitted meshes arranged discretely; and the aerosol-generating substrate comprises a plurality of substrate units arranged discretely on the plurality of the knitted meshes.

[0035] Another embodiment of the present application further provides an aerosol generating system, comprising:

[0036] An aerosol generating article as described above;

[0037] A heating device, comprising:

[0038] a chamber for removably receiving the aerosol-generating article;

[0039] The induction coil is arranged around the chamber and is used to generate a changing magnetic field. When the aerosol generating product is received in the chamber, the induction coil is inductively coupled to the susceptor of the aerosol generating product to induce the susceptor to generate eddy current heating through the changing magnetic field.

[0040] Yet another embodiment of the present application further provides a heating device, which is configured to heat an aerosol-generating article including an aerosol-generating substrate to generate an aerosol; comprising:

[0041] a chamber for receiving the aerosol-generating article;

[0042] A susceptor is located in the chamber or arranged around the chamber, and can generate eddy currents in a changing magnetic field to generate heat and thus heat the aerosol generating substrate of the aerosol generating product; the susceptor comprises at least one woven mesh, the woven mesh comprises a plurality of first wires extending in a first direction, and a plurality of second wires extending in a second direction, at least one of the first wires and the second wires can generate eddy currents in a changing magnetic field to generate heat;

[0043] Induction coil, used to generate a changing magnetic field.

[0044] Another embodiment of the present application further provides a susceptor for an aerosol generating system, which is used to heat an aerosol generating substrate of an aerosol generating article; characterized in that the susceptor comprises:

[0045] At least one braided mesh includes a plurality of first wires extending in a first direction and a plurality of second wires extending in a second direction, wherein at least one of the first wires and the second wires can generate eddy currents and generate heat in a changing magnetic field.

[0046] In some embodiments, the first wire comprises one of a Permalloy wire and a stainless steel wire, and the second wire comprises the other of the Permalloy wire and the stainless steel wire. In some embodiments, the Permalloy is, for example, a Permalloy with a grade of 1J85 or 1J50; the stainless steel is, for example, 430 stainless steel.

[0047] The above aerosol generating products heat the aerosol generating substrate through the susceptor of the woven mesh, which is beneficial for improving the absorption and utilization efficiency of the heat of the susceptor by the aerosol generating substrate. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] 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.

[0049] Figure 1 is a schematic structural diagram of an aerosol generating article provided by an embodiment from one perspective;

[0050] Figure 2 yes Figure 1 A schematic cross-sectional view of an aerosol generating article from one perspective;

[0051] Figure 3 In one embodiment, Figure 2 A schematic diagram of the structure of an aerosol generating system of an aerosol generating article and a heating device;

[0052] Figure 4 yes Figure 1 A cross-sectional schematic diagram of the aerosol generating article from another perspective;

[0053] Figure 5 yes Figure 4 Schematic diagram of the structure of the middle receptor from one perspective;

[0054] Figure 6 yes Figure 5 A magnified view of a local part of the mesoreceptor;

[0055] Figure 7is a schematic structural diagram of a receptor according to another embodiment;

[0056] Figure 8 is a schematic structural diagram of a receptor according to another embodiment;

[0057] Fig. 9 is a schematic structural diagram of a receptor according to another embodiment;

[0058] Fig.10 is a schematic structural diagram of a receptor according to another embodiment;

[0059] Fig.11 is a schematic structural diagram of a receptor according to another embodiment;

[0060] Fig.12 In one embodiment, Fig.11 Schematic diagram of an aerosol generating article with a receptor;

[0061] Fig.13 is a schematic diagram of an aerosol-generating article according to yet another embodiment;

[0062] Fig.14 is a schematic structural diagram of an aerosol generating system according to yet another embodiment;

[0063] Fig.15 is a schematic diagram of an aerosol-generating article according to yet another embodiment;

[0064] Fig.16 is a schematic diagram of an aerosol-generating article according to yet another embodiment. DETAILED DESCRIPTION

[0065] 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.

[0066] One embodiment of the present application provides a heated aerosol-generating article comprising a plurality of elements assembled in the form of a strip, capable of generating an aerosol when heated.

[0067] For example Figure 1 and Figure 2 is a schematic diagram of an aerosol generating article 1000 according to an embodiment of the present invention. Figure 1 and Figure 2As shown, the aerosol generating article 1000 includes an upstream end 1100 and a downstream end 1200 opposite to each other; as used herein, the terms 'upstream' and 'downstream' are used to describe the relative positions of the elements, or parts of the elements, of the aerosol generating article 1000 with respect to the direction in which the user draws suction on the aerosol generating article 1000 during its use. Downstream can be the direction in which the user draws suction, and upstream is the direction away from the user accordingly; and upstream is the direction in which the external air enters the aerosol generating article 1000, and downstream is the direction in which the air flow containing the aerosol is output from the aerosol generating article 1000. In use, the aerosol generated by heating in the aerosol generating article 1000 passes through the downstream end 1200 and is delivered to the user after leaving the aerosol generating article from the downstream end 1200. In use, the user can draw suction on the downstream end 1200 to inhale the aerosol.

[0068] Among them Figure 1 and Figure 2 In the illustrated embodiment, based on the convenience of inhalation by a user, the overall appearance of the aerosol generating article 1000 is a longitudinally elongated cylindrical structure. Alternatively, in some other variant embodiments, the aerosol generating article 1000 may be a longitudinally elongated elliptical cylinder, square cylinder, polygonal cylinder, etc.

[0069] The appearance of the aerosol-generating article 1000 can mimic the appearance of a conventional smokable cigarette. The aerosol-generating article 1000 can have an outer diameter between approximately 5 mm and 12 mm (e.g., between approximately 5 mm and 10 mm). And the aerosol-generating article 1000 has a total length between approximately 40 mm and 100 mm. In an optional embodiment, the aerosol-generating article 1000 has a total length of approximately 45 mm to 55 mm.

[0070] according to Figure 1 and Figure 2 As shown, the aerosol generating article 1000 includes a plurality of elements arranged coaxially from an upstream end 1100 to a downstream end 1200:

[0071] The plug 1140, the aerosol generating substrate 1130, the cooling element 1120 and the filter element 1110 are arranged sequentially and limited by the outer wrapper 1160 to form the aerosol generating article 1000. Among them:

[0072] The plug 1140 is adjacent to and defines the upstream end 1100, and the plug 1140 is used to block or seal the upstream end 1100 of the aerosol-generating article 1000, thereby preventing the material of the aerosol-generating substrate 1130 or the generated aerosol / aerosol condensate from flowing out of the upstream end 1100. In an embodiment, the plug 1140 is airflow-permeable, so that during inhalation, air can enter from the upstream end 1100 and pass through the plug 1140 to flow to the downstream aerosol-generating substrate 1130; for example, in some embodiments, the plug 1140 may include a porous material such as cotton fiber, cellulose acetate, folded paper, etc.

[0073] Aerosol generating substrate 1130 is used to describe the matrix that can release volatile compounds when heated, and these volatile compounds can form aerosol. Aerosol described here can be visible or invisible, and can include vapor (for example, fine particles of material, these particles are in gaseous state, these particles are usually liquid or solid at room temperature) and droplets of gas and condensed vapor. Aerosol generating substrate 1130 can include one or more of the following for example: powder, particle, pellet, fragment, strand, strip or thin sheet, it comprises one or more of the following: dried flower or fragrant leaf, grass leaf, tobacco leaf, tobacco main vein, expanded tobacco and homogenized tobacco. In optional embodiment, aerosol generating substrate 1130 comprises the aggregated thin sheet of the homogenized tobacco material of wrinkle, and the homogenized tobacco material of wrinkle is limited by outer wrapper 1160; The aggregated thin sheet of the homogenized tobacco material of wrinkle comprises glycerol, as aerosol forming agent.

[0074] The cooling element 1120 is arranged immediately downstream of the aerosol generating substrate 1130 and is adjacent to the aerosol generating substrate 1130. In use, the cooling element 1120 is used to provide support for the aerosol generating substrate 1130 downstream on the one hand, and on the other hand, the volatile substances released by the aerosol generating substrate 1130 after being heated pass along the cooling element 1120 toward the proximal end 11 of the aerosol generating article, and the volatile substances can be cooled in the cooling element 1120 to form an aerosol inhaled by the user. Figure 2In the optional embodiment shown in , the cooling element 1120 includes a cooling cavity 1121 that extends along the length of the cooling element 1120. By extending the cooling cavity 1121 axially above, the air flow passing through the cooling element 1120 is in the longitudinal direction without a significant radial deviation. The cooling element 1120 can function to cool the temperature of the aerosol stream drawn through the cooling element 1120 by means of heat transfer. The components of the aerosol will interact with the space within the cooling element 1120 and lose thermal energy. The cooling element 1120 may include ceramics, metals, or organic polymer plastics, etc. In some embodiments, the temperature of the aerosol stream may decrease by more than 10 degrees Celsius as it is drawn through the cooling element 1120. In some embodiments, the temperature of the aerosol stream may decrease by more than 25 degrees Celsius or more than 30 degrees Celsius as it is drawn through the cooling element 1120.

[0075] The filter element 1110 is disposed immediately downstream of the cooling element 1120 and defines a downstream end 1200 and is adjacent to the cooling element 1120 for filtering the aerosol before delivery to a user. Figure 2 In the embodiment shown in FIG. 1 , the filter element 1110 comprises a conventional cellulose acetate or polypropylene tow filter having low filtration efficiency.

[0076] To assemble the aerosol-generating article 100, the various elements described above are aligned and tightly wrapped within the outer wrapper 1160. Figure 1 and Figure 2 In the embodiment shown in , the outer wrapper 1160 is conventional cigarette paper, fibrous material, organic polymer, etc.

[0077] In some embodiments, the plug 1140 is airflow permeable, so that air can pass through the plug 1140 during inhalation and then be delivered to the downstream aerosol-generating substrate 1130. In some embodiments, the plug 1140 may include a porous body; the term "porous" is intended to cover materials that are porous in nature as well as substantially non-porous materials that are made porous or permeable by providing a plurality of holes. The porous material must have pores of sufficient size to allow air to pass through it and be drawn through the porous body. Because the porous body has a high surface area to volume ratio, the plug 1140 can allow for rapid and efficient heating of the air drawn through the porous body. This can allow for uniform heating of the air drawn through the porous body, and therefore allow for more uniform heating of the aerosol-generating substrate 1130 downstream of the plug 1140.

[0078] according to Figure 1 and Figure 2 As shown, the aerosol generating article 100 further comprises:

[0079] The susceptor 1150 is arranged in the aerosol generating substrate 1130 ; in use, the susceptor 1150 can generate eddy currents in a changing magnetic field and generate heat, thereby heating the aerosol generating substrate 1130 to generate aerosol.

[0080] Alternatively, in some alternative embodiments, the aerosol generating article 100 may include only a basic component for generating an aerosol; for example, the aerosol generating article 100 may include only an aerosol generating substrate 1130 and a susceptor 1150. During inhalation, the airflow passing through the aerosol generating article 100 is as follows: Figure 2 As shown by the middle arrow R12, air enters from the upstream end 1100 and flows downstream, and finally carries the aerosol generated by the aerosol generating matrix 1130 and is output to the user from the filter element 1110 at the downstream end 1200.

[0081] Or in some other variations, the aerosol generating article 100 may further include more functional components; for example, the aerosol generating article 100 may further include a fragrance component located in the aerosol generating substrate 1130 to increase the fragrance of the generated aerosol, etc.

[0082] Figure 3 A schematic diagram of an aerosol generating system according to an embodiment is shown. Figure 3 In the illustration, the aerosol generating system comprises:

[0083] Aerosol generating articles 1000;

[0084] The heating device 100 is used to receive and heat the aerosol generating article 1000, so that the aerosol generating substrate 1130 in the aerosol generating article 1000 generates aerosol for the user to inhale. Figure 3 As shown in , when the aerosol generating product 1000 is received in the heating device 100, the filter element 1110 of the aerosol generating product 1000 is exposed outside the heating device 100, which is advantageous for the user to inhale. And when the aerosol generating substrate 1130 of the aerosol generating product 1000 is consumed, the user can remove the aerosol generating product 1000 from the heating device 100 for replacement.

[0085] according to Figure 3 In the embodiment shown, the overall appearance of the heating device 100 is roughly configured as a flat cylinder. The structure of the heating device 100 includes:

[0086] The housing 10 is hollow inside, thereby forming an assembly space for necessary functional components such as electronic devices; the housing 10 has a proximal end 110 and a distal end 120 opposite to each other along the length direction;

[0087] a receiving opening 111 located at the proximal end 110; in use, the aerosol generating article 1000 can be at least partially received into the housing 10 through the receiving opening 111, or removed from the housing 10 through the receiving opening 111;

[0088] The support 20 at least partially surrounds or defines a chamber; the chamber is used to receive at least a portion of the aerosol generating article 1000 extending into the housing 10 through the receiving opening 111;

[0089] The air channel 150 is located between the chamber and the air inlet 121; and in use, the air channel 150 provides a channel path from the air inlet 121 into the chamber / aerosol generating article 1000, such as Figure 3 As shown by the arrow R11.

[0090] In some optional embodiments, the bracket 20 is tubular and the bracket 20 is not removable or fixed or movable in the housing 10 .

[0091] according to Figure 3 As shown, the heating device 100 further includes:

[0092] A battery cell 130 for power supply;

[0093] A circuit board 140 having a circuit arranged thereon;

[0094] The induction coil 40 is arranged around the bracket 20; the induction coil 40 is electrically connected to the circuit board 140, and the circuit board 140 can provide an alternating current to generate a changing magnetic field to induce the receptor 1150 of the aerosol generating product 1000 to form eddy current heating, thereby heating the aerosol generating matrix 1130 to generate aerosol.

[0095] according to Figure 3 As shown, when the aerosol-generating article 1000 is received in the chamber and / or the support 20, the susceptor 1150 is located in the induction coil 40. Also, when the aerosol-generating article 1000 is received in the chamber and / or the support 20, the susceptor 1150 is inductively coupled to the induction coil 40. Thus, when the aerosol-generating article 1000 is received in the chamber and / or the support 20, the susceptor 1150 can be induced by the magnetic field generated by the induction coil 40 to form eddy current heating, thereby heating the aerosol-generating substrate 1130.

[0096] In some embodiments, when the aerosol-generating article 1000 is received in the chamber and / or the support 20, the circuit board 140 can drive the induction coil 40 to generate a magnetic field according to a predetermined heating curve to induce the susceptor 1150 on the aerosol-generating article 1000 to heat. Specifically, for example, the applicant provides a variety of modes and content details about heating the aerosol-generating article 1000 according to a predetermined heating curve in Chinese patent application CN112335940A, etc., and the above documents are incorporated herein by reference in their entirety. In some embodiments, based on the heating mode according to the predetermined heating curve, the circuit on the circuit board 140 can determine the current temperature of the susceptor 1150 according to the power or electrical energy provided to the induction coil 40 from the start of heating to the current moment.

[0097] Alternatively, in some alternative embodiments, the circuit on the circuit board 140 can determine the current temperature of the sensor 1150 based on the electrical characteristics such as the resonant voltage, current or apparent ohmic resistance of the induction coil 40. For example, Chinese patent application CN106163306A and others provide a variety of content details on determining the current temperature of the sensor 1150 according to the electrical characteristics such as the resonant voltage, current or apparent ohmic resistance, and the entire text of the above document is incorporated herein by reference.

[0098] according to Figures 4 to 6 As shown, the susceptor 1150 is configured to be arranged along the longitudinal extension of the aerosol generating article 1000. The susceptor 1150 is arranged along the longitudinal axis of the aerosol generating article 1000; or the susceptor 1150 coincides with the longitudinal axis of the aerosol generating article 1000. Or in some other variant embodiments, the susceptors 1150 may be inclined relative to the longitudinal axis of the aerosol generating article 1000. The extension length d12 of the susceptor 1150 is not less than 70% of the extension length d11 of the aerosol generating substrate 1130. In some embodiments, the extension length d11 of the aerosol generating substrate 1130 is about 10 to 18 mm, specifically, for example, d11 is about 15 mm; accordingly, the extension length d12 of the susceptor 1150 is about 8 to 15 mm, specifically, for example, d12 is about 12 mm.

[0099] exist Figures 4 to 6In the illustrated embodiment, the extension length d12 of the susceptor 1150 is less than the extension length d11 of the aerosol-generating substrate 1130, so that the susceptor 1150 avoids the two opposite longitudinal ends of the aerosol-generating substrate 1130. Alternatively, in some embodiments, the susceptor 1150 may extend to or penetrate the opposite longitudinal ends of the aerosol-generating substrate 1130, which may help provide more complete heating of the aerosol-generating substrate 1130 in use to avoid wasting substrate material. Alternatively, in some embodiments, the susceptor 1150 may not extend to either of the two opposite longitudinal ends of the aerosol-generating substrate 1130, or may extend to only one of the two longitudinal ends of the aerosol-generating substrate 1130 and be separated from the other.

[0100] exist Figures 4 to 6 In the illustrated embodiment, the susceptor 1150 is completely surrounded by the aerosol-generating substrate 1130 , such that the susceptor 1150 is enclosed by the aerosol-generating substrate 1130 .

[0101] exist Figures 4 to 6 In the illustrated embodiment, the susceptor 1150 is substantially flat or substantially planar. In this embodiment, the susceptor 1150 can be considered to be a flat sheet or strip. In this embodiment, the susceptor 1150 has two side surfaces that face each other in the thickness direction. Therefore, the depth or thickness of the susceptor 1150 is relatively small compared to other dimensions of the susceptor 1150. In this embodiment, the susceptor 1150 has an approximately rectangular shape; the width w1 of the susceptor 1150 is substantially constant along the length of the susceptor 1150. Alternatively, in other embodiments, the susceptor 1150 can have a shape other than a rectangle, such as a circle, an ellipse, an annular shape, a polygon, a square, a triangle, a star shape, or a radial fin.

[0102] exist Figures 4 to 6 In the illustrated embodiment, the width w1 of the susceptor 1150 is between 40% and 90% of the diameter of the aerosol-generating substrate 1130 and / or the aerosol-generating article 1000. For example, in some specific embodiments, the diameter of the aerosol-generating substrate 1130 / aerosol-generating article 1000 is 7.6 mm. The width w1 of the susceptor 1150 is between 3 and 7 mm.

[0103] exist Figures 4 to 6 In the illustrated embodiment, the susceptor 1150 is continuous; alternatively, the susceptor 1150 is a plurality of portions that are not discretely separated from one another. Figures 4 to 6 In the illustrated embodiment, the susceptor 1150 is fluid permeable, and the fluid permeability property can help air or aerosol pass through the susceptor 1150, thereby increasing the efficiency of heat absorption and utilization of the susceptor 1150 by the aerosol generating substrate 1130. Figures 4 to 6In the illustrated embodiment, the susceptor 1150 is in the form of a mesh having a plurality of perforations, thereby rendering the susceptor 1150 fluid permeable.

[0104] exist Figures 4 to 6 In the illustrated embodiment, the sensor 1150 comprises a woven mesh formed by weaving a plurality of threads. Figure 6 As shown, the braided susceptor 1150 comprises:

[0105] A plurality of first wires 1151 extending in a first direction, and a plurality of second wires 1152 extending in a second direction. In some implementations, the susceptor 1150 is a woven mesh woven from the first wires 1151 and the second wires 1152. Figure 6 In the embodiment of the woven susceptor 1150 , the gaps between the first filaments 1151 and the second filaments 1152 form perforations that pass through the susceptor 1150 , thereby making the susceptor 1150 fluid-permeable.

[0106] exist Figure 6 In some embodiments, the first direction may be perpendicular to the second direction; for example, the first direction is the length direction of the susceptor 1150, and the second direction is the width direction of the susceptor 1150. Alternatively, in some other embodiments, the first directions are non-perpendicular but inclined relative to each other.

[0107] In some embodiments, each of the first wire 1151 and / or the second wire 1152 may have a circular cross-section; or in some other variations, each of the first wire 1151 and / or the second wire 1152 may have an elliptical, rectangular, triangular, polygonal, or flat cross-sectional shape.

[0108] In some embodiments, each of the first filament 1151 and / or the second filament 1152 may have the same diameter or width; or in some other variations, each of the first filament 1151 and / or the second filament 1152 may have a different diameter or width. In some embodiments, the diameter or width of the first filament 1151 is substantially equal to the diameter or width of the second filament 1152; or in some other embodiments, the diameter or width of the first filament 1151 is greater than the diameter or width of the second filament 1152.

[0109] In some embodiments, each of the first filaments 1151 and / or the second filaments 1152 has a diameter or width of 0.01 to 0.3 mm; more preferably, each of the first filaments 1151 and / or the second filaments 1152 has a diameter or width of 0.05 to 0.15 mm.

[0110] In some embodiments, the susceptor 1150 of the mesh woven by the first wire 1151 and / or the second wire 1152 can have a mesh density between about 20 and about 150 wires per centimeter. Preferably, the mesh density of the woven susceptor 1150 is between about 30 and about 80 wires per centimeter. The pore size or width of the mesh of the woven susceptor 1150 can be between about 20 microns and about 2000 microns; specifically, the pore size or width of the mesh of the susceptor 1150 can be about 150 microns, that is, about 100 mesh. The ratio of the area of ​​the mesh of the woven susceptor 1150 to the total area of ​​the woven mesh can be between about 40% and about 90%, preferably between about 60% and about 80%. For Figures 4 to 6 In the embodiment shown, the total area of ​​the woven mesh can be understood as the product of the length and width of the sheet-shaped woven mesh; and for a non-planar woven mesh such as Fig.11 The total area of ​​the cylindrical woven mesh in the illustrated embodiment can be understood as the product of the circumferential dimension and the height.

[0111] In some embodiments, at least one of the first wire 1151 and the second wire 1152 is sensitive, so that the woven susceptor 1150 can generate eddy currents and generate heat in a changing magnetic field. For example, at least one of the first wire 1151 and the second wire 1152 is made of a sensitive metal or alloy, such as iron or iron alloy, nickel or nickel alloy, cobalt or cobalt alloy, graphite, ordinary carbon steel, stainless steel, ferritic stainless steel, Permalloy, etc. In some embodiments, the Curie temperature of the sensitive first wire 1151 and / or the second wire 1152 is greater than 400°C.

[0112] Or in some other embodiments, the first wire 1151 and / or the second wire 1152 are both sensitive, and both generate eddy currents in the magnetic field and generate heat; and the Curie temperature of the first wire 1151 can be greater than the Curie temperature of the second wire 1152. For example, the first wire 1151 includes a 1J85 or 1J50 permalloy wire, and the second wire 1152 includes a S430 grade stainless steel wire. Alternatively, the first wire 1151 includes both a permalloy wire and a stainless steel wire, and the second wire 1152 also includes both a permalloy wire and a stainless steel wire.

[0113] exist Figures 4 to 6 In the illustrated embodiment, the susceptor 1150 includes only one layer or one woven mesh. Alternatively, in some other variations, the susceptor 1150 may also include at least two or more layers of woven mesh.

[0114] For example Figure 7A schematic diagram of a susceptor 1150a of a modified embodiment is shown; in this embodiment, the susceptor 1150a includes a first woven mesh 1153a and a second woven mesh 1154a which are laminated or stacked in the thickness direction; wherein the first woven mesh 1153a and the second woven mesh 1154a are connected to form a connecting portion 1155a on a first side in the width direction of the susceptor 1150a, and the first woven mesh 1153a and the second woven mesh 1154a are not connected to define a gap 1156a on a second side in the width direction of the susceptor 1150a. In this embodiment, the first woven mesh 1153a and the second woven mesh 1154a are formed by bending or folding the same woven mesh.

[0115] Another example Figure 8 A schematic diagram of a susceptor 1150b of another variant embodiment is shown; in this embodiment, the susceptor 1150b includes a first woven mesh 1153b and a second woven mesh 1154b that are laminated or stacked in the thickness direction. In this embodiment, the first woven mesh 1153b and the second woven mesh 1154b are independently woven and prepared and then laminated or stacked. In some embodiments, the first woven mesh 1153b and the second woven mesh 1154b are tightly stacked. Or in some other embodiments, there may be a gap between the first woven mesh 1153b and the second woven mesh 1154b.

[0116] Alternatively, in some other embodiments, the susceptor 1150b may further include more layers of woven mesh, for example, the susceptor 1150b may include 2 to 6 layers of woven mesh. Also, when the susceptor 1150b includes at least two or more layers of woven mesh, the width of the susceptor 1150b may be reduced relative to the width of the susceptor 1150b having only a single layer of woven mesh; for example, the width of the susceptor 1150b may be between 1 and 4 mm.

[0117] In still other variations, the susceptor 1150 / 1150a / 1150b is non-flat or non-planar. The non-planar shape or non-planar susceptor 1150 / 1150a / 1150b can provide a tortuous path for the air to follow, thereby creating turbulence in the air and resulting in better heat transfer from the heating material to the aerosol generating substrate 1130. The non-planar shape or non-planar shape can also increase the surface area per unit length of the susceptor 1150 / 1150a / 1150b, which can result in greater or improved Joule heating efficiency of the susceptor 1150 / 1150a / 1150b. Specifically, the susceptor 1150 / 1150a / 1150b can be curved along one or more dimensions, such as forming an arch shape or a bridge shape.

[0118] For example Fig. 9A schematic diagram of a susceptor 1150c of yet another alternative embodiment is shown in FIG. 1 ; in this embodiment, the non-flat susceptor 1150c extends along a wavy or wave-shaped path within the aerosol generating substrate 1130; for example, the extension path of the susceptor 1150c may be a sinusoidal path. The susceptor 1150c may still be considered as a strip or ribbon, but the two side surfaces of the strip or ribbon are alternately concavely curved and convexly curved along the length of the susceptor 1150c.

[0119] Another example Fig.10 , a schematic diagram of a susceptor 1150d of another alternative embodiment is shown in FIG. 1 ; in this embodiment, the non-planar susceptor 1150d extends along a zigzag tortuous path within the aerosol generating substrate 1130. Alternatively, in another similar embodiment, the susceptor 1150d may be spiral, helical, or have an uneven non-planar shape.

[0120] Fig.11 A schematic diagram of a non-flat susceptor 1150e of another embodiment is shown; in this embodiment, the susceptor 1150e is configured to be a cylindrical shape wound by a woven mesh; and the susceptor 1150e wound by the woven mesh is not closed in the circumferential direction. Fig.12 The middle susceptor 1150e has a side opening or notch 1157e extending from the first end to the second end in the longitudinal direction. Fig.11 In the embodiment, the tubular sensor 1150e wound by the braided mesh is in the shape of a cylinder; in some other embodiments, the sensor 1150e may be in the shape of an elliptical cylinder, a triangular cylinder, a square cylinder, or the like. Fig.11 In the embodiment of the present invention, the susceptor 1150e is a mesh woven from wires. The woven susceptor 1150e may include a plurality of first wires extending in the longitudinal direction and a plurality of second wires extending in the circumferential direction; the first wires and the second wires are interlaced and woven into a mesh.

[0121] Fig.12 An embodiment having Fig.11 Schematic diagram of an aerosol generating article 1000e having a receptor 1150e; in this embodiment, the aerosol generating article 1000e includes a receptor 1150e wrapped or confined by an outer wrapper 1160e, an aerosol generating substrate 1130e, a cooling element 1120e and a filter element 1110e; wherein the aerosol generating substrate 1130e is close to or defines an upstream end 1100e, and the filter element 1110e is close to or defines a downstream end 1200e.

[0122] exist Fig.11 and Fig.12In the illustrated embodiment, the susceptor 1150e surrounds and encapsulates the aerosol-generating substrate 1130e. In use, the susceptor 1150e generates an aerosol by heating the aerosol-generating substrate 1130e from outside the aerosol-generating substrate 1130e.

[0123] or Fig.13 A schematic diagram of an aerosol-generating article 1000f having a wrapped susceptor 1150f in yet another embodiment is shown. In this embodiment, the susceptor 1150f wrapped by the woven mesh does not completely surround and encapsulate the aerosol-generating substrate 1130f. Fig.13 As shown, the susceptor 1150f wound into a cylindrical shape has substantially the same length as the aerosol generating substrate 1130f; for example, the length of the susceptor 1150f wound into a cylindrical shape is 4 to 18 mm. Fig.13 As shown, the diameter of the susceptor 1150f wound into a cylindrical shape or the diameter of the circumscribed circle is between 40% and 90% of the diameter of the aerosol generating substrate 1130f.

[0124] exist Fig.13 In the illustrated embodiment, the aerosol generating substrate 1130f comprises a first portion 1131f located inside the susceptor 1150f and a second portion 1132f located outside the susceptor 1150f. In this embodiment, the diameter or the diameter of the circumscribed circle of the cylindrical susceptor 1150f is between 3.5 and 6.5 mm.

[0125] Or in some other embodiments, the aerosol-generating substrate 1130f is not included in the susceptor 1150f wound into a cylindrical shape; that is, the aerosol-generating substrate 1130f only has a second portion 1132f located outside the susceptor 1150f. In this embodiment, the diameter of the susceptor 1150f or the diameter of the circumscribed circle is less than 60% of the diameter of the aerosol-generating article 1000f; more preferably, the diameter of the susceptor 1150f or the diameter of the circumscribed circle is less than 30% of the diameter of the aerosol-generating article 1000f.

[0126] or Fig.14 A schematic diagram of an aerosol generating system including a heating device 100g of yet another embodiment is shown; in this embodiment, the heating device 100g comprises:

[0127] The housing 10g has a proximal end 110g and a distal end 120g opposite to each other along the length direction;

[0128] a receiving opening 111g located at the proximal end 110g; in use, the aerosol generating article 1000g can be at least partially received into the housing 10g through the receiving opening 111g, or removed from the housing 10g through the receiving opening 111g;

[0129] A substantially tubular support 20g at least partially surrounding or defining a chamber; the chamber is for receiving at least a portion of the aerosol generating article 1000g extending into the housing 10g through the receiving opening 111g;

[0130] An air passage 150g, located between the chamber and the air inlet 121g; and thus in use, the air passage 150g provides a passage path from the air inlet 121g into the chamber / aerosol generating article 1000g;

[0131] 130g battery cell for power supply;

[0132] A circuit board 140g having a circuit arranged thereon;

[0133] a susceptor 30g located within the support 20g and at least partially surrounding or defining the chamber; when the aerosol-generating article 1000g is received in the chamber, the aerosol-generating substrate 1130g is at least partially contained or received within the susceptor 30g and is heated from the outside by the susceptor 30g;

[0134] The induction coil 40g is arranged around the susceptor 30g; the induction coil 40g is electrically connected to the circuit board 140g, and the circuit board 140g can provide an alternating current to generate a changing magnetic field to induce the susceptor 30g to form eddy current heating.

[0135] In an embodiment, the susceptor 30g is in the shape of a cylinder wound from a woven mesh, such that when the aerosol-generating article 1000g is received in the chamber, the susceptor 30g surrounds or encloses at least a portion of the aerosol-generating substrate 1130g.

[0136] Alternatively, in some alternative embodiments, the receptor 30g is arranged in a sheet or tube shape extending along the longitudinal direction of the chamber; when the aerosol generating product 1000g is received in the chamber, the receptor 30g can extend into or be inserted into the aerosol generating substrate 1130g for heating.

[0137] or Fig.15 A schematic diagram of an aerosol generating article 1000h according to another variant embodiment is shown; in this embodiment, the aerosol generating article 1000h is a multi-layer structure including:

[0138] The susceptor 1150h includes the braided mesh described above, and is used to generate eddy currents and generate heat in a changing magnetic field;

[0139] A support layer 1160h is combined with the receptor 1150h; the support layer 1160h is used to improve the mechanical strength of the aerosol generating article 1000h, so as to reduce or prevent the sheet-shaped aerosol generating article 1000h from bending or deformation;

[0140] The aerosol generating substrate 1130h is used to generate an aerosol when heated; the aerosol generating substrate 1130h is combined with the susceptor 1150h and is surrounded or arranged in the support layer 1160h.

[0141] according to Fig.15 As shown, the susceptor 1150h is a continuous woven mesh and can be flat; and the support layer 1160h is a thin layer of mesh; the support layer 1160h has a plurality of discretely arranged holes 1161h. The aerosol-generating substrate 1130h is arranged to include substrate units within the holes 1161h of the discretely arranged support layer 1160h. In some embodiments, the plurality of discrete substrate units of the aerosol-generating substrate 1130h can be heated independently in sequence to generate an aerosol.

[0142] For example, Fig.15 In the embodiment, several discrete substrate units of the aerosol generating substrate 1130h can be indirectly heated by the induction coil 40h adjacent to the susceptor 1150h; and the several induction coils 40h are each used to independently heat different parts of the susceptor 1150h, thereby independently heating different substrate units of the aerosol generating substrate 1130h.

[0143] or Fig.16 A schematic diagram of an aerosol generating article 1000j of yet another variant embodiment is shown; in this embodiment, the aerosol generating article 1000j comprises:

[0144] A mesh support layer 1160j having a plurality of holes 1161j;

[0145] A plurality of susceptors 1150j are discretely arranged in the holes 1161j of the support layer 1160j; each susceptor 1150j may include a woven mesh of sensitivity;

[0146] The aerosol-generating substrate 1130j includes a plurality of substrate units discretely arranged in the holes 1161j of the supporting layer 1160j, and the substrate units are combined with the susceptor 1150j; in use, the substrate units of the aerosol-generating substrate 1130j can receive heat from the relative susceptor 1150j and be heated. In addition, the supporting layer 1160j provides thermal insulation between the plurality or adjacent substrate units of the aerosol-generating substrate 1130j. In addition, the substrate units of the aerosol-generating substrate 1130j and the susceptor 1150j are supported or held by the supporting layer 1160j.

[0147] In some embodiments, a plurality of discrete substrate units of the aerosol generating substrate 1130h / 1130j are arranged in an array; in use, the substrate units can be sequentially started to be heated one after another in a predetermined order, so as to independently generate an aerosol sufficient for one inhalation in each heating. Or in some variations of implementation, the plurality of induction coils 40h sequentially and individually start to heat the substrate units of the aerosol generating substrate 1130h / 1130j without intervals along the arrangement direction. Or in some variations of implementation, the plurality of induction coils 40h sequentially and individually start to heat the substrate units of the aerosol generating substrate 1130h / 1130j, which is performed intermittently or in a jumpy manner.

[0148] 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 product, characterized in that include: an aerosol generating substrate configured to generate an aerosol when heated; A receptor, which can generate eddy currents and generate heat in a changing magnetic field, thereby heating the aerosol generating substrate; the receptor comprises at least one woven mesh, the woven mesh comprises a plurality of first wires extending in a first direction, and a plurality of second wires extending in a second direction, at least one of the first wires and the second wires can generate eddy currents and generate heat in a changing magnetic field.

2. The aerosol-generating article according to claim 1, wherein The first direction is substantially perpendicular to the second direction.

3. An aerosol generating article according to claim 1 or 2, characterized in that Each of the first and / or second wires has a circular, elliptical, rectangular, triangular or polygonal cross-sectional shape.

4. An aerosol generating article according to claim 1 or 2, characterized in that The diameter or width of the first filament is substantially equal to the diameter or width of the second filament; And / or, each of the first and / or second wires may have the same diameter or width.

5. An aerosol generating article according to claim 1 or 2, characterized in that The diameter or width of the first wire is greater than the diameter or width of the second wire; And / or, each of the first and / or second wires may have a different diameter or width.

6. An aerosol generating article according to claim 1 or 2, characterized in that Each of the first and / or second wires has a diameter or width of 0.01 to 0.3 mm.

7. An aerosol generating article according to claim 1 or 2, characterized in that The pore size or width of the mesh of the woven mesh may be between 20 microns and 2000 microns.

8. An aerosol generating article according to claim 1 or 2, characterized in that The woven mesh has a mesh density between 20 and 150 filaments per centimeter.

9. An aerosol generating article according to claim 1 or 2, characterized in that A ratio of an area of ​​meshes of the woven mesh to a total area of ​​the woven mesh may be between 40% and 90%.

10. An aerosol-generating article according to claim 1 or 2, characterized in that The Curie temperature of the first filament and / or the second filament is greater than 400° C.; And / or, the Curie temperature of the first filament is greater than the Curie temperature of the second filament.

11. An aerosol-generating article according to claim 1 or 2, characterized in that The susceptor is arranged to be located within the aerosol generating substrate; and / or, the susceptor is completely surrounded or enclosed by the aerosol-generating substrate; And / or, the aerosol-generating substrate is partially located inside the susceptor and partially located outside the susceptor.

12. An aerosol-generating article according to claim 11, characterized in that The susceptor is arranged along the longitudinal axis of the aerosol-generating article.

13. An aerosol-generating article according to claim 12, characterized in that The susceptor has an extension length of not less than 70% of the extension length of the aerosol generating substrate.

14. An aerosol-generating article according to claim 1 or 2, characterized in that The susceptor is substantially flat or planar.

15. An aerosol-generating article according to claim 14, characterized in that The width of the susceptor is between 40% and 90% of the diameter of the aerosol generating base and / or the aerosol generating article.

16. An aerosol-generating article according to claim 1 or 2, characterized in that The susceptor is configured in a cylindrical shape formed by winding the braided mesh.

17. An aerosol-generating article according to claim 16, characterized in that The susceptor is arranged around the aerosol-generating substrate.

18. An aerosol-generating article according to claim 16, wherein The susceptor is non-closed in the circumferential direction; And / or, the susceptor is provided with a side opening penetrating the susceptor in the longitudinal direction.

19. An aerosol-generating article according to claim 1 or 2, characterized in that The susceptor comprises only one layer of the woven mesh; Alternatively, the susceptor comprises at least two layers of the woven mesh arranged in a laminated or stacked manner.

20. An aerosol-generating article according to claim 1 or 2, characterized in that The aerosol-generating substrate comprises a plurality of substrate units discretely arranged on the susceptor.

21. An aerosol-generating article according to claim 20, characterized in that The plurality of substrate units are configured to be heated sequentially one after another in a predetermined order to generate aerosol sufficient for one inhalation in each heating.

22. An aerosol-generating article according to claim 1 or 2, characterized in that The susceptor comprises a plurality of the woven meshes arranged discretely; and the aerosol generating substrate comprises a plurality of substrate units arranged discretely on the plurality of the woven meshes.

23. An aerosol generating system, characterized in that: include: An aerosol-generating article as claimed in any one of claims 1 to 22; A heating device, comprising: a chamber for removably receiving the aerosol-generating article; The induction coil is arranged around the chamber and is used to generate a changing magnetic field. When the aerosol generating product is received in the chamber, the induction coil is inductively coupled to the susceptor of the aerosol generating product to induce the susceptor to generate eddy current heating through the changing magnetic field.

24. A heating device configured to heat an aerosol-generating article comprising an aerosol-generating substrate to generate an aerosol; characterized in that include: a chamber for receiving the aerosol-generating article; A susceptor is located in the chamber or arranged around the chamber, and can generate eddy currents in a changing magnetic field to generate heat and thus heat the aerosol generating substrate of the aerosol generating product; the susceptor comprises at least one woven mesh, the woven mesh comprises a plurality of first wires extending in a first direction, and a plurality of second wires extending in a second direction, at least one of the first wires and the second wires can generate eddy currents in a changing magnetic field to generate heat; Induction coil, used to generate a changing magnetic field.

25. A susceptor for an aerosol generating system, for heating an aerosol generating substrate of an aerosol generating article; characterized in that: The receptor comprises: At least one braided mesh includes a plurality of first wires extending in a first direction and a plurality of second wires extending in a second direction, wherein at least one of the first wires and the second wires can generate eddy currents and generate heat in a changing magnetic field.

26. A susceptor for an aerosol generating system according to claim 25, wherein: The first wire includes one of a Permalloy wire and a stainless steel wire, and the second wire includes the other of a Permalloy wire and a stainless steel wire.

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