Metal matrix, composite tobacco sheet, aerosol-generating article and aerosol-generating system

Abstract

The utility model provides a metal matrix, a composite tobacco sheet, an aerosol generation product and an aerosol generation system, the metal matrix comprises a plurality of annular ribs, the annular ribs are radially distributed at intervals along the same circle center, and in any two adjacent annular ribs, one annular rib is sleeved with the other annular rib; the radial ribs are spaced in the circumferential direction of the annular ribs, each radial rib extends in the radial direction of the annular ribs, any two adjacent annular ribs are connected through the radial ribs, and the widths of the radial ribs are gradually reduced in the radial inward direction of the annular ribs. Therefore, the area of the metal capable of inductively generating heat in the unit area of the metal matrix tends to be consistent, and the thermal field distribution of the metal matrix is more uniform; and the annular ribs and the radial ribs enable the metal matrix to form a hollow structure, so that the grabbing force on the slurry forming the aerosol matrix layer is stronger.

Description

Technical Field

[0001] This application relates to the field of aerosol generation technology, and particularly to metal matrices, composite smoke sheets, aerosol generation products, and aerosol generation systems. Background Technology

[0002] Tobacco products (e.g., cigarettes, cigars, etc.) produce tobacco smoke by burning tobacco during use. Efforts are being made to replace these tobacco-burning products by creating products that release compounds without combustion. An example of such a product is a heating device that releases the compounds by heating rather than burning the material. This material could be tobacco or other non-tobacco products, which may or may not contain nicotine.

[0003] In related technologies, induction heating can use helical coils, such as planar helical coils, to heat a planar metal substrate. However, this heating method has the problem of uneven temperature field distribution in the metal substrate. Utility Model Content

[0004] To address the problem of uneven temperature field distribution in metal substrates.

[0005] This application provides a metal matrix for composite tobacco sheets, comprising:

[0006] Multiple annular ribs are distributed radially at intervals along the same center, and in any two adjacent annular ribs, one annular rib is nested inside the other annular rib.

[0007] Multiple radial ribs are spaced apart along the circumferential direction of the annular rib. Each radial rib extends along the radial direction of the annular rib. Any two adjacent annular ribs are connected by the radial ribs. The width of the radial ribs gradually decreases in the radially inward direction of the annular rib.

[0008] This application provides a metal matrix for composite tobacco sheets, wherein the widths of any two adjacent annular ribs are not the same in their radial direction.

[0009] This application provides a metal substrate for composite tobacco sheets, wherein in any two adjacent annular ribs, the distance between the two annular ribs in their radial direction is L, and there are multiple distance values ​​on the metal substrate, and the multiple distance values ​​are the same; or, at least one of the multiple distance values ​​is different from the other distance values.

[0010] This application provides a metal matrix for composite tobacco sheets, wherein among the plurality of radial ribs, there are a plurality of first-type ribs and a plurality of second-type ribs.

[0011] At least a portion of the radial ribs of the first type of ribs constitute a first rib. There are multiple first ribs, and the multiple first ribs are radially distributed. Each first rib extends along the same diameter direction, and the width of the first rib gradually decreases in the radially inward direction of the annular rib.

[0012] At least a portion of the radial ribs of a plurality of second type ribs constitute a second rib, the second rib being one or more, and the plurality of second ribs being radially distributed, each second rib extending along the same diametrical direction, and the width of the second rib gradually decreasing in the radially inward direction of the annular rib;

[0013] The length of the first rib in the radial direction of the annular rib is greater than the length of the second rib in the radial direction of the annular rib.

[0014] This application provides a metal substrate for composite tobacco sheets, wherein at least one second rib is sandwiched between any two adjacent first ribs.

[0015] This application provides a metal matrix for composite tobacco sheets, wherein the minimum angle between any two adjacent radial ribs is greater than or equal to 3°.

[0016] This application provides a metal matrix for composite tobacco sheets, wherein the maximum width of the radial ribs is 0.1mm-0.67mm.

[0017] This application provides a metal substrate for composite tobacco sheets, wherein at least one of the annular ribs and the radial ribs is provided with a perforated hole.

[0018] This application provides a metal matrix for composite tobacco sheets, wherein the annular ribs are circular rings.

[0019] This application provides a metal matrix for composite tobacco sheets, wherein the maximum diameter of the outer ring on the annular rib is 7mm-10mm.

[0020] This application provides a metal matrix for composite tobacco sheets, wherein there are multiple radial ribs between any two adjacent annular ribs, and the multiple radial ribs are evenly distributed along the circumferential direction of the annular ribs.

[0021] This application provides a composite tobacco sheet, comprising an aerosol matrix layer and the aforementioned metal substrate, wherein the metal substrate heats the aerosol matrix layer to generate an aerosol.

[0022] This application provides an aerosol generating article, including a shell; and

[0023] The aforementioned metal matrix; or

[0024] In the aforementioned composite tobacco sheet, the housing defines an air outlet. When the composite tobacco sheet is heated by the metal matrix to generate an aerosol, the aerosol enters the air outlet.

[0025] This application provides an aerosol generation system, characterized in that it includes an aerosol generation device; and

[0026] The aforementioned metal matrix;

[0027] The above-mentioned composite tobacco sheets; or

[0028] The aforementioned aerosol-generated products have a metal matrix that can generate heat in the magnetic field provided by the aerosol-generating device.

[0029] The metal substrate provided in this application includes multiple annular ribs and multiple radial ribs. In the radially inward direction of the annular ribs, the width of the radial ribs gradually decreases, thereby making the area of ​​the metal substrate capable of generating heat induction within a unit area more uniform, resulting in a more uniform temperature field distribution of the metal substrate. Furthermore, the annular and radial ribs create a hollow structure in the metal substrate, which strengthens the gripping force of the slurry forming the aerosol matrix layer. Attached Figure Description

[0030] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0031] Figure 1 This is a schematic diagram of a metal substrate according to an embodiment of this application;

[0032] Figure 2 This is a schematic diagram of a metal substrate according to an embodiment of this application;

[0033] Figure 3 This is a schematic diagram of a metal substrate according to an embodiment of this application;

[0034] Figure 4 for Figure 3 A magnified view of a portion of the image;

[0035] Figure 5 This is a schematic diagram of a metal substrate according to an embodiment of this application;

[0036] Figure 6 This is a schematic diagram of a metal substrate according to an embodiment of this application;

[0037] Figure 7 This is a schematic diagram of an aerosol-generated article according to an embodiment of this application;

[0038] Figure 8 This is a schematic diagram of the housing according to one embodiment of this application;

[0039] Figure 9 This is a schematic diagram of a positioning element according to one embodiment of this application;

[0040] Figure 10 This is a schematic diagram of an aerosol generation system according to an embodiment of this application.

[0041] In the picture:

[0042] 3. Metal substrate; 34. Annular rib; 35. Radial rib; 351. First type rib; 3511. First rib; 352. Second type rib; 3521. Second rib; 36. Hole;

[0043] 30. Composite tobacco sheets;

[0044] 2. Aerosol matrix layer;

[0045] 10. Aerosol-generating products;

[0046] 1. Housing; 11. Air passage; 13. First part; 14. Second part; 141. Bending section; 142. Overlapping section; 15. First mounting hole;

[0047] 5. Positioning component; 51. Hollow hole; 52. Positioning notch; 53. Second mounting hole;

[0048] 6. Limiting component; 61. Vent; 62. Third mounting hole;

[0049] 100. Aerosol generation system;

[0050] 20. Aerosol generating device. Detailed Implementation

[0051] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0052] The terms "first," "second," and "third" used in this application are for descriptive purposes only and should not be construed as indicating or implying the quantity or order of the indicated technical features relative to their importance. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship or movement of the components in a specific orientation (as shown in the accompanying drawings). If the specific orientation changes, the directional indication will also change accordingly. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0053] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0054] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be intervening elements. When an element is referred to as being "connected to" another element, it can be directly connected to the other element, or there may be one or more intervening elements. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0055] One embodiment of this application provides a metal substrate 3 for a composite tobacco sheet 30, comprising multiple annular ribs 34 and multiple radial ribs 35. The annular ribs 34 are radially spaced along the same center, and in any two adjacent annular ribs 34, one annular rib 34 is fitted inside the other annular rib 34. The radial ribs 35 are spaced apart circumferentially along the annular ribs 34, each radial rib 35 extending radially along the annular ribs 34. Any two adjacent annular ribs 34 are connected by radial ribs 35, and the width of the radial ribs 35 gradually decreases in the radially inward direction of the annular ribs 34.

[0056] The metal substrate 3 provided in this application includes multiple annular ribs 34 and multiple radial ribs 35. In the radially inward direction of the annular ribs 34, the width of the radial ribs 35 gradually decreases, thereby making the area of ​​the metal that can generate heat induction within a unit area of ​​the metal substrate 3 more uniform, and making the temperature field distribution of the metal substrate 3 more uniform. Furthermore, the annular ribs 34 and radial ribs 35 make the metal substrate 3 form a hollow structure, which strengthens the gripping force of the slurry forming the aerosol matrix layer 2.

[0057] In one embodiment of this application, the widths of any two adjacent annular ribs 34 are not the same in their radial direction. The width of the annular rib 34 in its radial direction is equal to the width of the annular rib 34. In one embodiment of this application, the widths of multiple annular ribs 34 gradually decrease in the radially inward direction. This makes the area of ​​the heat-generating metal per unit area of ​​the metal substrate 3 more uniform, resulting in a more uniform temperature field distribution in the metal substrate 3. In one embodiment of this application, the width distribution of the annular ribs 34 can be designed according to the user's requirements for the smoke emission rate of the metal substrate 3.

[0058] In one embodiment of this application, the radial spacing between any two adjacent annular ribs 34 is L, and multiple spacing values ​​exist on the metal substrate 3, all of which are identical. In one embodiment of this application, at least one of the multiple spacing values ​​differs from the others. In one embodiment of this application, the multiple spacing values ​​gradually increase radially inward along the annular ribs 34, making the area of ​​the heat-generating metal per unit area of ​​the metal substrate 3 more uniform, resulting in a more uniform temperature field distribution on the metal substrate 3. In one embodiment of this application, the distribution of the spacing values ​​can be designed according to the user's requirements for the smoke emission rate of the metal substrate 3.

[0059] In one embodiment of this application, among the plurality of radial ribs 35, there are a plurality of first-type ribs 351 and a plurality of second-type ribs 352. At least a portion of the radial ribs 35 among the plurality of first-type ribs 351 constitute first ribs 3511. There are multiple first ribs 3511, and the multiple first ribs 3511 are radially distributed. Each first rib 3511 extends along the same diametrical direction, and the width of the first rib 3511 gradually decreases in the radially inward direction of the annular rib 35. At least a portion of the radial ribs 352 among the plurality of second-type ribs 352 constitute second ribs 3521. There are one or more second ribs 3521, and the multiple second ribs 3521 are radially distributed. Each second rib 3521 extends along the same diametrical direction, and the width of the second rib 3521 gradually decreases in the radially inward direction of the annular rib 352. The length of the first reinforcing bar 3511 in the radial direction of the annular reinforcing bar 34 is greater than the length of the second reinforcing bar 3521 in the radial direction of the annular reinforcing bar 34.

[0060] In one embodiment of this application, the plurality of annular ribs 34 include a first annular rib closest to the center, a plurality of intermediate annular ribs, and a last annular rib farthest from the center. The first rib 3511 can be connected between the first annular rib and the last annular rib, and the second rib 3521 can be connected between any two or more adjacent intermediate annular ribs.

[0061] In one embodiment of this application, at least one second rib 3521 is sandwiched between any two adjacent first ribs 3511, thereby making the area of ​​the metal substrate 3 that can generate heat induction within a unit area more uniform, and making the temperature field distribution of the metal substrate 3 more uniform.

[0062] In one embodiment of this application, the minimum included angle between any two adjacent radial ribs 35 is greater than or equal to 3°. In one embodiment of this application, the minimum included angle between any two adjacent radial ribs 35 is 3°-6°. In one embodiment of this application, the minimum included angle between any two adjacent radial ribs 35 is 3°, 4°, 6°, 8°, 10°, or 15°.

[0063] In one embodiment of this application, the maximum width of the radial rib 35 is 0.1mm-0.67mm. In another embodiment of this application, the width of the radial rib 35 is 0.10mm, 0.12mm, 0.15mm, 0.20mm, 0.40mm, 0.30mm, 0.67mm, or 0.24mm.

[0064] In one embodiment of this application, there are multiple radial ribs 35 between any two adjacent annular ribs 34, and the multiple radial ribs 35 are evenly distributed along the circumferential direction of the annular ribs 34.

[0065] In one embodiment of this application, at least one of the annular rib 34 and the radial rib 35 is provided with a perforated hole 36. On the one hand, the perforated hole 36 allows the aerosol generated by heating the metal substrate 3 to pass through, and on the other hand, the perforated hole 36 can adjust the area distribution of the metal substrate 3, so that the temperature field distribution of the metal substrate 3 is more uniform.

[0066] In one embodiment of this application, the perforated holes 36 are arranged in an ordered or disordered manner. In one embodiment, the perforated holes 36 may be arranged in an array. In one embodiment, the perforated holes 36 may be arranged in a circular, elliptical, racetrack-shaped, rectangular, triangular-hexagonal, or other shape. In one embodiment, the perforated holes 36 may be arranged in a centrally symmetrical or axially symmetrical pattern. In one embodiment, the cross-section of the perforated holes 36 is circular, polygonal, or irregular. In one embodiment, the cross-section of the perforated holes 36 is triangular, rectangular, circular, elliptical, racetrack-shaped, hexagonal, or other irregular shape.

[0067] In one embodiment of this application, the annular rib 34 can be a circular ring.

[0068] In one embodiment of this application, the maximum diameter of the outer ring on the annular rib 34 is 7mm-10mm. In another embodiment of this application, the maximum diameter of the outer ring on the annular rib 34 is 7mm, 8mm, 9mm, or 10mm.

[0069] One embodiment of this application provides a composite tobacco sheet 30, including an aerosol matrix layer 2 and the aforementioned metal substrate 3, wherein the metal substrate 3 heats the aerosol matrix layer 2 to generate an aerosol.

[0070] In one embodiment of this application, the aerosol matrix layer 2 and the metal substrate 3 can be stacked and in direct contact. In another embodiment of this application, the aerosol matrix layer 2 and the metal substrate 3 can be stacked and fixedly connected. It should be noted that the aerosol matrix layer 2 can be fixed to the surface of the metal substrate 3, and the aerosol matrix layer 2 and the metal substrate 3 are stacked. For example, in some examples, the aerosol generating matrix layer 2 can be bonded to the metal substrate 3.

[0071] It should be noted that the term "stacked" in this application can be interpreted broadly. It can be a limitation on the positional relationship between two components, but it does not specifically limit the contact relationship (e.g., direct contact or indirect contact) or connection relationship (e.g., no connection, fixed connection, or adhesive bonding).

[0072] In one embodiment of this application, the metal substrate 3 may be sheet-like. In another embodiment, the thickness of the metal substrate 3 is 0.05mm-0.15mm; specifically, the thickness may be 0.05mm, 0.10mm, 0.12mm, or 0.15mm. The metal substrate 3 has a certain rigidity, enabling it to support the aerosol-generating matrix layer 2. When fixed between the limiting member 6 and the inner wall of the shell 1, it is not easily deformed.

[0073] In one embodiment of this application, the metal substrate 3 comprises a sensitive metal or alloy that can be penetrated by a magnetic field and generate heat. When the metal substrate 3 is placed in a changing magnetic field, according to the law of electromagnetic induction, the magnetic flux passing through the metal substrate 3 changes, generating an induced electromotive force (EMF) within the metal substrate 3. Since the metal substrate 3 is a conductor with relatively low resistance, a closed loop is formed inside the metal substrate 3 under the influence of the induced EMF, generating induced eddy currents. As the eddy currents flow inside the metal substrate 3, electrical energy is converted into heat energy, thereby raising the temperature of the metal substrate 3. The heat generated by the metal substrate 3 can heat the aerosol-forming matrix layer 3.

[0074] In one embodiment of this application, the metal matrix 3 comprises a soft magnetic alloy. Soft magnetic alloys are widely used in energy conversion and signal processing fields due to their core advantages of high electromagnetic response, low loss, and high saturation magnetization.

[0075] In one embodiment of this application, the metal substrate 3 includes aluminum foil, nickel-iron alloy, high-nickel alloy, stainless steel, or pure iron.

[0076] In one embodiment of this application, the metal substrate 3 is formed by punching, rolling, and deposition.

[0077] In one embodiment of this application, the aerosol matrix layer 2 includes tobacco extract. The tobacco extract can be obtained by extracting extracts from tobacco leaves and flowers using a solvent, then extracting the extracts with ethanol, followed by drying, dehydration, desalting, and cooking of the raw materials, adding an extract with a special aroma, and performing ultrasonic-assisted extraction to finally obtain a tobacco extract with a specific flavor. In one embodiment of this application, the tobacco extract is mainly used for tobacco flavoring, which can enhance the aroma, reduce off-flavors, and improve cigarette quality. Its aroma is realistic and natural, making it an excellent raw material for cigarette flavoring. Furthermore, tobacco extract can also be used in daily-use fragrances to provide unique aromas and flavors.

[0078] In one embodiment of this application, the main components of the tobacco extract include furfuryl alcohol, benzyl alcohol, phytol, solanone, β-turfayne, β-ionone, hexahydrofarnesone, diene, daidzeinone, dihydroactinolone, isopentenone, indole, etc.

[0079] One embodiment of this application provides an aerosol generating article, including a shell 1; and

[0080] The aforementioned metal substrate 3; or

[0081] The aforementioned composite tobacco sheet 30 has an air passage 11 defined by the housing 1. When the composite tobacco sheet 30 is heated by the metal substrate 3 to generate aerosol, the aerosol enters the air passage 11.

[0082] In one embodiment of this application, the aerosol matrix layer 2 is bonded to the housing 1. In another embodiment of this application, the aerosol matrix layer 2 is bonded to the housing 1 using an adhesive material that does not produce odor when heated, so that the adhesive material does not affect the taste of the aerosol when the aerosol matrix layer 2 is heated.

[0083] In one embodiment of this application, the aerosol generating article 10 includes a positioning member 5, which is fixed on the inner wall of the air passage 11. The positioning member 5 is provided with a through hole 51, which communicates with the periphery of the positioning member 5 to form a positioning notch 52, which communicates with the air passage 11.

[0084] In one embodiment of this application, the positioning member 5 is fixedly connected to the housing 1 so that the through hole 51 of the positioning member 5 can position the metal substrate 3 and the aerosol matrix layer 2.

[0085] In one embodiment of this application, the positioning member 5 is attached to the inner wall of the housing 1, and the through hole 51 communicates with the periphery of the positioning member 5 to form a positioning notch 52. At least a portion of the edge of the aerosol matrix layer 2 is fitted into the positioning notch 52. The positioning notch 52 has a limiting effect on the aerosol matrix layer 2 and the metal substrate 3, and the inner edge of the positioning notch 52 can limit the movement of the aerosol matrix layer 2 and the metal substrate 3 in the circumferential direction.

[0086] In one embodiment of this application, the positioning member 5 is flat, and the contact area between the inner wall of the air passage 11 and the positioning member 5 is planar. The positioning member 5 is bonded to the inner wall of the air passage 11. This improves the stability of the fit between the positioning member 5 and the inner wall of the air passage 11.

[0087] In one embodiment of this application, the limiting member 6 and the positioning member 5 are stacked and fixedly connected, and the metal substrate 3 and the aerosol matrix layer 2 are sandwiched between the limiting member 6 and the inner wall of the shell 1. The limiting member 6 positions the metal substrate 3 and the aerosol matrix layer 2 in the axial direction of the metal substrate 3.

[0088] In one embodiment of this application, the limiting member 6 is provided with a vent 61, and the metal substrate 3 is partially exposed to the vent 61, so that the aerosol generated by heating the metal substrate 3 can pass through the vent 61 and enter the air passage 11 of the housing 1.

[0089] In one embodiment of this application, the housing 1 is provided with a first mounting hole 15, the positioning member 5 is provided with a second mounting hole 53, and the limiting member 6 is provided with a third mounting hole 62. During the installation of the aerosol generating product 10, the first mounting hole 15, the second mounting hole 53 and the third mounting hole 62 pass through the mounting post for positioning and installation.

[0090] In one embodiment of this application, at least one of the limiting member 6, the positioning member 5, and the housing 1 is made of paper.

[0091] In one embodiment of this application, both the limiting member 6 and the positioning member 5 are sheet-like and are bonded together. In another embodiment, the limiting member 6 and the positioning member 5 are stacked, with the positioning member 5 located between the limiting member 6 and the housing 1. Further, one side of the positioning member 5 is bonded to the housing 1, and the other side is bonded to the limiting member 6. The metal substrate 3 and the aerosol matrix layer 2 are embedded in the positioning notch 52, and both are sandwiched between the limiting member 6 and the housing 1. The limiting member 6 positions the metal substrate 3 and the aerosol matrix layer 2 along the axis of the metal substrate 3, and the positioning member 5 positions the metal substrate 3 and the aerosol matrix layer 2 in the circumferential direction of the metal substrate 3. Furthermore, the positioning notch 52 can serve as a channel for aerosol to escape into the airway 11.

[0092] In one embodiment of this application, the housing 1 includes a first portion 13 and a second portion 14. A composite tobacco sheet 30 is fixed to the first portion 13. The second portion 14 is connected to the first portion 13 and is folded relative to the first portion 13 to form an air passage 11, within which the composite tobacco sheet 30 is located. In one embodiment of this application, a positioning member 5 is bonded to the first portion 13.

[0093] In one embodiment of this application, two second parts 14 are connected to the two sides of the first part 13 respectively. The two second parts 14 are bent toward the first part 13 and stacked and bonded. After the two second parts 14 are stacked, they are opposite to the first part 13. In the manufacturing process of the aerosol generating article 10, a flat material can be folded and bonded to form the shell 1, making the manufacturing process of the shell 1 simple and convenient.

[0094] In one embodiment of this application, the second part 14 includes a bent section 141 and an overlapping section 142 connected to the bent section 141. The bent section 141 is connected to the first part 13. The two overlapping sections 142 are stacked. The bent section 18 is opposite to the positioning notch 52, and the bent section 18 seals the metal substrate 3 and the aerosol matrix layer 2 inside the positioning notch 52. The two overlapping sections 142 are stacked and opposite to the first part 13, so that after the aerosol generating article 10 is installed into the heating chamber of the aerosol generating device, the first part 13 is located at the bottom of the heating chamber, and the two overlapping sections 142 are located on the opening side of the heating chamber. The thickness of the two overlapping sections 142 after stacking does not affect the assembly of the housing 1 and the heating chamber.

[0095] In one embodiment of this application, the through hole 51 is a circular hole, and the arc corresponding to the positioning notch 52 is greater than or equal to 45°. In one embodiment of this application, as... Figure 3 As shown, the arc corresponding to the positioning notch 52 can be 90°. In other embodiments of this application, the arc corresponding to the positioning notch 52 can be 45°.

[0096] One embodiment of this application provides an aerosol generation system 100, characterized in that it includes an aerosol generation device 20; and

[0097] The aforementioned metal substrate 3; or

[0098] The above-mentioned composite tobacco sheet 30; or

[0099] The metal substrate 3 of the aforementioned aerosol-generating product 10 can generate heat in the magnetic field provided by the aerosol generating device 20.

[0100] In one embodiment of this application, the aerosol generating device 20 may include a coil. When the coil is energized, it can convert an electric field into a magnetic field. Under the action of the magnetic field, the metal substrate 3 generates an induced current and heats up, thereby heating the aerosol matrix layer 2 to generate aerosol.

[0101] It should be noted that the preferred embodiments of this application are given in the specification and accompanying drawings, but are not limited to the embodiments described in this specification. Furthermore, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A metal matrix for composite tobacco sheets, characterized in that, include: Multiple annular ribs are distributed radially at intervals along the same center, and in any two adjacent annular ribs, one annular rib is nested inside the other annular rib. Multiple radial ribs are spaced apart along the circumferential direction of the annular rib. Each radial rib extends along the radial direction of the annular rib. Any two adjacent annular ribs are connected by the radial ribs. The width of the radial ribs gradually decreases in the radially inward direction of the annular rib.

2. The metal matrix for composite tobacco sheets according to claim 1, characterized in that, In any two adjacent annular ribs, the widths of the two annular ribs in their radial direction are not the same.

3. The metal matrix for composite tobacco sheets according to claim 1, characterized in that, In any two adjacent annular ribs, the distance between the two annular ribs in their radial direction is L. There are multiple distance values ​​on the metal substrate, and the multiple distance values ​​are the same; or, at least one of the multiple distance values ​​is different from the other distance values.

4. The metal matrix for composite tobacco sheets according to claim 1, characterized in that, Among the multiple radial stiffeners, there are multiple type I stiffeners and multiple type II stiffeners. At least a portion of the radial ribs of the first type of ribs constitute a first rib. There are multiple first ribs, and the multiple first ribs are radially distributed. Each first rib extends along the same diameter direction, and the width of the first rib gradually decreases in the radially inward direction of the annular rib. At least a portion of the radial ribs of a plurality of second type ribs constitute a second rib, the second rib being one or more, and the plurality of second ribs being radially distributed, each second rib extending along the same diametrical direction, and the width of the second rib gradually decreasing in the radially inward direction of the annular rib; The length of the first rib in the radial direction of the annular rib is greater than the length of the second rib in the radial direction of the annular rib.

5. The metal matrix for composite tobacco sheets according to claim 4, characterized in that, At least one second rib is sandwiched between any two adjacent first ribs.

6. The metal matrix for composite tobacco sheets according to claim 1, characterized in that, The minimum angle between any two adjacent radial ribs is greater than or equal to 3°.

7. The metal matrix for composite tobacco sheets according to claim 1, characterized in that, The maximum width of the radial rib is 0.1mm-0.67mm.

8. The metal matrix for composite tobacco sheets according to claim 1, characterized in that, At least one of the annular ribs and the radial ribs is provided with a perforated hole.

9. The metal matrix for composite tobacco sheets according to claim 1, characterized in that, The annular rib is a circular ring.

10. The metal matrix for composite tobacco sheets according to claim 9, characterized in that, The maximum diameter of the outer ring on the annular rib is 7mm-10mm.

11. The metal matrix for composite tobacco sheets according to claim 1, characterized in that, There are multiple radial ribs between any two adjacent annular ribs, and these multiple radial ribs are evenly distributed along the circumferential direction of the annular ribs.

12. A composite tobacco sheet, characterized in that, It includes an aerosol matrix layer and a metal substrate as described in any one of claims 1-10, wherein the metal substrate heats the aerosol matrix layer to generate an aerosol.

13. An aerosol-generating product, characterized in that, Including the casing; and The metal matrix according to any one of claims 1-11; or According to claim 12, the composite tobacco sheet, the housing defines an air outlet, and when the composite tobacco sheet is heated by the metal matrix to generate an aerosol, the aerosol enters the air outlet.

14. An aerosol generation system, characterized in that, Including aerosol generating devices; and The metal matrix according to any one of claims 1-11; The composite tobacco sheet according to claim 12; or The aerosol-generating article of claim 13, wherein the metal matrix thereof can generate heat in the magnetic field provided by the aerosol-generating device.

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