Aerosol-generating article

Abstract

The application provides an aerosol generating article, comprising a substrate and an aerosol generating medium. The aerosol generating medium is arranged on one side of the substrate and comprises a first aerosol generating medium and a second aerosol generating medium. At a first temperature, the first aerosol generating medium and the second aerosol generating medium are both in a first state, and the first state is a solid state. At a second temperature, the first aerosol generating medium remains in the first state, and the second aerosol generating medium changes to a second state. The change of the second aerosol generating medium from the first state to the second state is an endothermic process. Specifically, by arranging the aerosol generating medium to comprise the first aerosol generating medium and the second aerosol generating medium, and by arranging the second aerosol generating medium to change from the first state to the second state through endothermic process at the second temperature, the temperature of the first aerosol generating medium can be maintained stable, the difficulty of temperature control technology can be reduced, and uniform heating of the aerosol generating medium can be achieved.

Description

Technical Field

[0001] This application relates to the field of atomization technology, and more particularly to an aerosol generating product. Background Technology

[0002] Low-temperature baking aerosol products can significantly reduce the harmful substances in the aerosols produced after baking and heating, thus gradually becoming a safer and healthier leisure activity.

[0003] However, since the main components of low-temperature baking aerosol-generating products are generally solid aerosol generating media, such as filamentous, flake, thin sheet, granular, powder, columnar solid media containing specific aromas, solid media are prone to uneven heating, and existing heating methods are difficult to achieve accurate temperature control of solid media to ensure uniform heating. Summary of the Invention

[0004] This application provides an aerosol generating article that can solve the problem of uneven heating of the solid medium in existing aerosol generating articles.

[0005] To address the aforementioned problems, this application provides a technical solution as follows: An aerosol generating article is provided, comprising: a substrate; and an aerosol generating medium disposed on one side of the substrate, including a first aerosol generating medium and a second aerosol generating medium; wherein, at a first temperature, both the first and second aerosol generating media are in a first state, which is solid; at a second temperature, the first aerosol generating medium remains in the first state, while the second aerosol generating medium transitions to a second state; the transition of the second aerosol generating medium from the first state to the second state is an endothermic process.

[0006] In one embodiment, the second state is either liquid or gaseous.

[0007] In one embodiment, at a third temperature, the first aerosol generating medium remains in the first state, and the second aerosol generating medium changes from the second state to the third state; the change from the second state to the third state of the second aerosol generating medium is an endothermic process.

[0008] In one embodiment, a first aerosol generating medium forms a first aerosol generating medium layer, a second aerosol generating medium forms a second aerosol generating medium layer, and the first aerosol generating medium layer and the second aerosol generating medium layer are stacked.

[0009] In one embodiment, one of the first aerosol generating medium layer and the second aerosol generating medium layer is a patterned aerosol generating medium layer, and the patterned aerosol generating medium layer has a plurality of openings.

[0010] In one embodiment, the second aerosol generating medium layer is a patterned aerosol generating medium layer, with several openings dividing the second aerosol generating medium layer into multiple independent second aerosol generating medium blocks, and the distance between two adjacent second aerosol generating medium blocks is 0.1-5 mm.

[0011] In one embodiment, both the first aerosol generating medium and the second aerosol generating medium are patterned and disposed in the same layer; and the patterned first aerosol generating medium and the second aerosol generating medium form complementary patterns.

[0012] In one embodiment, the patterned second aerosol generating medium has a plurality of openings spaced apart, and the patterned first aerosol generating medium includes a plurality of first aerosol generating medium blocks spaced apart and having the same shape and size as the openings, with each first aerosol generating medium block housed within an opening.

[0013] In one embodiment, the patterned first aerosol generating medium includes a plurality of first aerosol generating medium blocks, and the patterned second aerosol generating medium includes a plurality of second aerosol generating medium blocks. The plurality of first aerosol generating medium blocks and the plurality of second aerosol generating medium blocks are arranged alternately, and the distance between two adjacent second aerosol generating medium blocks is 0.1-5 mm.

[0014] In one embodiment, the substrate includes: a photothermal conversion material layer for absorbing laser energy to generate heat; and a thermally conductive layer disposed between the photothermal conversion material layer and the aerosol generating medium for transferring the heat generated by the photothermal conversion material layer to the aerosol generating medium.

[0015] Unlike existing technologies, this application provides an aerosol generating product that includes a first aerosol generating medium and a second aerosol generating medium. When the aerosol generating medium is heated, the second aerosol generating medium absorbs heat at a second temperature and changes from a first state to a second state, thereby maintaining the temperature stability of the first aerosol generating medium. This reduces the difficulty of temperature control technology and achieves uniform heating of the aerosol generating medium. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0017] Figure 1 A schematic diagram of a specific embodiment of the first embodiment of the aerosol-generating article provided in this application;

[0018] Figure 2 for Figure 1 The diagram shows a cross-sectional view of the aerosol-generated product along line AA.

[0019] Figure 3 A cross-sectional view along line AA of another specific embodiment of the aerosol-generating article provided in this application;

[0020] Figure 4 A structural cross-sectional view along line AA of another specific embodiment of the aerosol-generating article provided in this application;

[0021] Figure 5 A structural cross-sectional view along line AA of another specific embodiment of the aerosol-generating article provided in this application;

[0022] Figure 6 A structural cross-sectional view along line AA of another specific embodiment of the aerosol-generating article provided in this application;

[0023] Figure 7 A structural cross-sectional view along line AA of another specific embodiment of the aerosol-generating article provided in this application;

[0024] Figure 8 A schematic diagram of a specific embodiment of the patterned aerosol generating medium layer in the first embodiment of the aerosol generating article provided in this application;

[0025] Figure 9 A schematic diagram of another specific embodiment of the patterned aerosol generating medium layer in the first embodiment of the aerosol generating article provided in this application;

[0026] Figure 10 A structural cross-sectional view along line AA of another specific embodiment of the aerosol-generating article provided in this application;

[0027] Figure 11 A structural cross-sectional view along line AA of another specific embodiment of the aerosol-generating article provided in this application;

[0028] Figure 12 A schematic diagram of a specific embodiment of the second embodiment of the aerosol-generating article provided in this application;

[0029] Figure 13 for Figure 12 The diagram shows a cross-sectional view of the aerosol-generated product along line AA.

[0030] Figure 14A schematic diagram of another specific embodiment of the aerosol generating medium provided in this application;

[0031] Figure 15 for Figure 14 The diagram shows a cross-sectional view of the aerosol-generated product along line AA.

[0032] Figure 16 A top view of yet another specific embodiment of the second embodiment of the aerosol-generating article provided in this application;

[0033] Figure 17 A schematic diagram of the structure of the third embodiment of the aerosol-generating article provided in this application;

[0034] Figure 18 for Figure 17 The diagram shows a cross-sectional view of the aerosol-generated product along line AA. Detailed Implementation

[0035] 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.

[0036] The terms "first," "second," and "third" in this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. 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 relationships and movements between components in a specific orientation (as shown in the figures). If the specific orientation changes, the directional indications 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.

[0037] 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.

[0038] The present application will now be described in detail with reference to the accompanying drawings and embodiments.

[0039] The applicant's research found that due to the low thermal conductivity of existing solid aerosol generating media, the parts near the heat source are prone to scorching during baking, resulting in a poor-tasting aerosol. Conversely, the aerosol generating media further away from the heat source suffers from insufficient thermal conductivity, leading to inadequate aerosol release and low user satisfaction. Furthermore, achieving rapid aerosol release requires precise temperature control technology, which current heating methods struggle to accurately regulate.

[0040] To solve the above problems, see [link to relevant documentation]. Figures 1-18 , Figure 1 A schematic diagram of a specific embodiment of the first embodiment of the aerosol-generating article provided in this application; Figure 2 for Figure 1 The diagram shows a cross-sectional view of the aerosol-generated product along line AA. Figure 3 A cross-sectional view along line AA of another specific embodiment of the aerosol-generating article provided in this application; Figure 4 A structural cross-sectional view along line AA of another specific embodiment of the aerosol-generating article provided in this application; Figure 5 A structural cross-sectional view along line AA of another specific embodiment of the aerosol-generating article provided in this application;

[0041] Figure 6 A structural cross-sectional view along line AA of another specific embodiment of the aerosol-generating article provided in this application; Figure 7 A structural cross-sectional view along line AA of another specific embodiment of the aerosol-generating article provided in this application; Figure 8 A schematic diagram of a specific embodiment of the patterned aerosol generating medium layer in the first embodiment of the aerosol generating article provided in this application; Figure 9 A schematic diagram of another specific embodiment of the patterned aerosol generating medium layer in the first embodiment of the aerosol generating article provided in this application; Figure 10 A structural cross-sectional view along line AA of another specific embodiment of the aerosol-generating article provided in this application; Figure 11A structural cross-sectional view along line AA of another specific embodiment of the aerosol-generating article provided in this application; Figure 12 A schematic diagram of a specific embodiment of the second embodiment of the aerosol-generating article provided in this application; Figure 13 for Figure 12 The diagram shows a cross-sectional view of the aerosol-generated product along line AA. Figure 14 A schematic diagram of another specific embodiment of the aerosol generating medium provided in this application; Figure 15 for Figure 14 The diagram shows a cross-sectional view of the aerosol-generated product along line AA. Figure 16 A top view of yet another specific embodiment of the second embodiment of the aerosol-generating article provided in this application; Figure 17 A schematic diagram of the structure of the third embodiment of the aerosol-generating article provided in this application; Figure 18 for Figure 17 The diagram shows a cross-sectional view of the aerosol-generated product along line AA.

[0042] Specifically, this application provides an aerosol generating article 100, including a substrate 10 and an aerosol generating medium 20. The aerosol generating medium 20 is disposed on one side of the substrate 10 and includes a first aerosol generating medium 30 and a second aerosol generating medium 40.

[0043] The shape of the aerosol-generating product 100 is not limited to, for example, Figure 1 , Figure 12 , Figure 14 as well as Figure 17 The shapes shown are square, cylindrical, etc., but can also be disc-shaped, prismatic, etc., and the cross-section perpendicular to line AA can be any shape such as triangle, pentagram, ellipse, rectangle, rhombus, etc.; the length and / or width of the aerosol-generated product 100 can be extended or reduced. No specific examples are given here.

[0044] The first aerosol generating medium 30 can be a solid medium containing a specific aroma, such as plant stems and leaves, in the form of filaments, flakes, thin sheets, granules, powders, or columns; it can also be other types of ordered solid aerosol generating media, disordered solid aerosol generating media, or particulate solid aerosol generating media. The first aerosol generating medium 30 can generate aerosols at temperatures above 250°C.

[0045] The second aerosol generating medium 40 can be a thickener added to an oily substance containing a specific aroma, such as glycerin or propylene glycol, to form a solid substance in a gel state at room temperature. Understandably, in one example, the thermal conductivity of the gel-state second aerosol generating medium 40 is higher than that of the first aerosol generating medium 30. Of course, the second aerosol generating medium 40 can also be other solid substances with high thermal conductivity; this is not limited here.

[0046] At the first temperature, both the first aerosol generating medium 30 and the second aerosol generating medium 40 are in a first state. The first temperature can be room temperature or a temperature lower than a first preset temperature. The first preset temperature can be less than 100°C, and the states of the first aerosol generating medium 30 and the second aerosol generating medium 40 will not change at the first preset temperature. The first state is solid.

[0047] At the second temperature, the first aerosol generating medium 30 remains in the first state, while the second aerosol generating medium 40 transitions to the second state. The second temperature can be greater than 100°C, and the second state can be either gaseous or liquid. The transition of the second aerosol generating medium 40 to the second state can be an endothermic process such as melting or sublimation. It is understandable that the second aerosol generating medium 40 needs to absorb energy to change from a solid to a gaseous or liquid state. Therefore, since the second temperature is greater than the first temperature, the transition of the second aerosol generating medium 40 from the first state to the second state is an endothermic process.

[0048] Specifically, the aerosol generating article 100 provided in this application embodiment includes a first aerosol generating medium 30 and a second aerosol generating medium 40 in the aerosol generating medium 20. The second aerosol generating medium 40 absorbs heat at a second temperature and changes from a first state to a second state. On the one hand, it can absorb and consume excess energy on the first aerosol generating medium 30, avoiding local scorching of the first aerosol generating medium 30. On the other hand, the second aerosol generating medium 40 has a high thermal conductivity, which can play a role in heat transfer, thereby maintaining the temperature stability of the first aerosol generating medium 30 and keeping the overall temperature of the aerosol generating medium 20 uniform. Real-time temperature feedback is not required, thereby reducing the technical difficulty of temperature control and achieving uniform heating of the aerosol generating medium 20.

[0049] In one embodiment, at a third temperature, the first aerosol generating medium 30 remains in the first state, while the second aerosol generating medium 40 transitions from the second state to the third state; this transition is an endothermic process. In this embodiment, the second state can be liquid, and the third state can be gaseous. When the second aerosol generating medium 40 transitions from solid to liquid and from liquid to gas, it simultaneously absorbs a large amount of heat and releases aerosols. This allows the temperature of the first aerosol generating medium 30 to be easily maintained at a stable level during rapid heating, preventing scorching and significantly improving the suction experience. Furthermore, the second aerosol generating medium 40 allows for relatively stable temperature control, eliminating the need for real-time temperature feedback and reducing temperature control detection costs.

[0050] The first temperature can be a temperature value or a temperature range, the second temperature can be a temperature value or a temperature range, and the third temperature can be a temperature value or a temperature range.

[0051] In this embodiment, the second aerosol generating medium 40 is a gel-like substance containing glycerol, propylene glycol, etc., with a specific aroma. The main components of the second aerosol generating medium 40 liquefy when the temperature exceeds 100 degrees Celsius; above 250 degrees Celsius, the liquefied gel medium vaporizes, absorbing a large amount of heat and releasing aerosols. It should be noted that, due to material properties, the amount of aerosol generated by heating the second aerosol generating medium 40 is greater than the amount generated by heating the first aerosol generating medium 30, thereby improving user satisfaction.

[0052] The heating method for the aerosol-generated product 100 can be at least one of the following: peripheral induction heating, central needle resistance heating, and laser heating.

[0053] Please continue reading Figure 3 In this embodiment of the application, the aerosol generating article 100 is heated by laser heating, and the substrate 10 includes a photothermal conversion material layer 11 and a thermally conductive layer 12. The photothermal conversion material layer 11 is used to absorb laser energy and generate heat energy; the thermally conductive layer 12 is disposed between the photothermal conversion material and the aerosol generating medium 20, and is used to transfer the heat energy generated by the photothermal conversion material layer 11 to the aerosol generating medium 20, so as to heat the aerosol generating medium 20 to generate an aerosol that can be used by the user.

[0054] The thermally conductive layer 12 includes, but is not limited to, materials with high thermal conductivity such as aluminum foil, copper foil, and stainless steel.

[0055] The photothermal conversion material layer 11 includes, but is not limited to, a ceramic coating with high absorption rate, a carbon-containing coating, or other materials that can absorb laser light.

[0056] Of course, in another embodiment, the heat-conducting layer 12 may not be provided, and the photothermal conversion material layer 11 may be directly provided on one side of the aerosol generating medium 20, or may wrap the aerosol generating medium 20.

[0057] The following description assumes that the semiconductor laser chip is supplied with current as the heat source to output laser light, with the laser wavelength ranging from 355 to 1550 nm; the second aerosol generating medium 40 is a gel-like substance containing glycerol, propylene glycol, etc. with a specific aroma, and has a thickness of 0.01 mm to 0.5 mm; and the first aerosol generating medium 30 has a thickness of 0.05 mm to 0.4 mm.

[0058] Specifically, the purpose of setting the thickness of the second aerosol generating medium 40 to 0.01mm-0.5mm is that the second aerosol generating medium 40 releases aerosols upon heating, exhibiting a physical state that transitions from gel to liquid to gas, vaporizing layer by layer. If the thickness is too thin, it is insufficient to generate enough aerosols; if the thickness is too thick, a single heating may not be enough to fully release all the gel, resulting in waste. The purpose of setting the thickness of the first aerosol generating medium 30 to 0.05mm-0.4mm is that if the first aerosol generating medium 30 is too thick, it will lead to poor aerosol release, reducing the amount of aerosol released; if the first aerosol generating medium 30 is too thin, it will result in too few aerosol products, reducing the amount of aerosol released.

[0059] Of course, other suitable thickness ranges for the first aerosol generating medium 30 and the second aerosol generating medium 40 can be set according to actual conditions, and no limitation is made here.

[0060] See Figures 1-11 In the first embodiment of this application, the first aerosol generating medium 30 forms a first aerosol generating medium layer, the second aerosol generating medium 40 forms a second aerosol generating medium layer, and the first aerosol generating medium layer and the second aerosol generating medium layer are stacked.

[0061] See Figure 2 or Figure 3Specifically, the second aerosol generating medium layer is disposed between the first aerosol generating medium layer and the substrate 10. A heat source heats the photothermal conversion material layer 11. After absorbing laser energy, the photothermal conversion material layer 11 heats the second aerosol generating medium layer through the heat-conducting layer 12. After absorbing heat, part of the heat is carried away by the released aerosol, and part is transferred to the first aerosol generating medium layer, enabling both layers to release aerosols simultaneously. Since the second aerosol generating medium layer absorbs a large amount of heat during melting, the temperature of the first aerosol generating medium layer is easily maintained at a stable level. Furthermore, since the first aerosol generating medium 30 requires preheating for a certain time to generate aerosols, while the second aerosol generating medium 40 can quickly release mist when the temperature reaches the required level, in this embodiment, the second aerosol generating medium layer absorbs heat first, enabling rapid aerosol release.

[0062] See Figure 4 Specifically, the first aerosol generating medium layer is disposed between the second aerosol generating medium layer and the substrate 10. The heat source heats the photothermal conversion material layer 11. After absorbing laser energy, the photothermal conversion material layer 11 heats the first aerosol generating medium layer through the heat-conducting layer 12. After the first aerosol generating medium layer absorbs heat, part of the heat will be carried away by the released aerosol, and part of the heat will be transferred to the second aerosol generating medium layer. The second aerosol generating medium layer absorbs heat, melts, and releases a large amount of aerosol, so that the first aerosol generating medium layer and the second aerosol generating medium layer release aerosol at the same time. Since the second aerosol generating medium layer absorbs a large amount of heat during the heating process, the temperature of the first aerosol generating medium 30 is easily kept in a moderate and stable state.

[0063] Furthermore, in the first embodiment of this application, one of the first aerosol generating medium layer and the second aerosol generating medium layer can be a patterned aerosol generating medium layer, and the patterned aerosol generating medium layer has a plurality of openings X.

[0064] Specifically, the first aerosol generated by heating the first aerosol generating medium 30 has a strong natural aroma, and the second aerosol generated by heating the second aerosol generating medium 40 has a large atomization amount. Therefore, by adjusting the ratio of the first aerosol and the second aerosol in the generated mixed aerosol, the taste requirements of different users can be met.

[0065] See Figure 5A second aerosol generating medium layer is disposed between the first aerosol generating medium layer and the substrate 10, and the second aerosol generating medium layer is a patterned aerosol generating medium layer. Specifically, by providing openings X on the second aerosol generating medium layer, the material content of the second aerosol generating medium layer can be reduced, thereby reducing the amount of second aerosol generated by the second aerosol generating medium layer, and thus increasing the proportion of first aerosol generated by the first aerosol generating medium layer, thereby improving the aroma of the mixed aerosol.

[0066] See Figure 6 A second aerosol generating medium layer is disposed between the first aerosol generating medium layer and the substrate 10, and the first aerosol generating medium layer is a patterned aerosol generating medium layer. Specifically, by providing openings X on the first aerosol generating medium layer, the material content of the first aerosol generating medium layer can be reduced, thereby reducing the amount of first aerosol generated by the first aerosol generating medium layer, and thus increasing the proportion of second aerosol generated by the second aerosol generating medium layer, reducing the inherent aroma of the mixed aerosol, and satisfying the taste needs of different users.

[0067] See Figure 7 A first aerosol generating medium layer is disposed between the second aerosol generating medium layer and the substrate 10, and the first aerosol generating medium layer is a patterned aerosol generating medium layer. Specifically, by providing openings X on the first aerosol generating medium layer, the material content of the first aerosol generating medium layer can be reduced, thereby reducing the amount of first aerosol generated by the first aerosol generating medium layer, and thus increasing the proportion of second aerosol generated by the second aerosol generating medium layer, reducing the inherent aroma of the mixed aerosol, and satisfying the taste needs of different users.

[0068] For example, if the aerosol generating medium is in the shape of a square sheet, see [reference needed]. Figure 8 The patterned aerosol generating medium layer can be an integral structure, and the several openings X can be through holes set on the patterned aerosol generating medium layer.

[0069] Alternatively, the patterned aerosol generating medium layer described above can be a modular structure. For example, such as... Figure 9 As shown, the second aerosol generating medium layer is a patterned aerosol generating medium layer. Several openings X divide the second aerosol generating medium layer into multiple independent second aerosol generating medium blocks 41, and the distance between two adjacent second aerosol generating medium blocks 41 is 0.1-5mm, for example, it can be 0.1mm, 0.5mm, 2mm, 3mm, 4mm or 5mm, etc.

[0070] Specifically, if two adjacent second aerosol generating medium blocks 41 are too large, the heat transfer of the first aerosol generating medium layer projected between the two adjacent second aerosol generating medium blocks 41 may be insufficient, resulting in insufficient atomization temperature and inadequate release of the first aerosol. This embodiment, by setting the distance between two adjacent second aerosol generating medium blocks 41 to 0.1-5 mm, ensures effective heat transfer between the second aerosol generating medium blocks 41 and the first aerosol generating medium layer on them, preventing insufficient heating of the first aerosol generating medium layer and resulting in low atomization.

[0071] Furthermore, in the first embodiment of this application, the patterned aerosol generating medium layer can be disposed close to the substrate 10, and the substrate 10 has a protrusion 13 that extends into the opening (not shown) and contacts another of the first and second aerosol generating medium layers. Wherein, as... Figure 10 and Figure 11 As shown, the patterned aerosol generating medium layer is a patterned second aerosol generating medium layer, and the protrusion 13 extends into the opening and contacts the first aerosol generating medium layer.

[0072] Specifically, by providing a protrusion 13 on the substrate 10, which extends into the opening and contacts the unpatterned aerosol generating medium layer, heat can be simultaneously transferred to the two stacked aerosol generating medium layers, improving atomization efficiency. Furthermore, in this embodiment, the distance between two adjacent medium blocks is not limited.

[0073] See Figures 13-16 In the second embodiment of this application, the first aerosol generating medium 30 and the second aerosol generating medium 40 are both patterned and disposed in the same layer; and the patterned first aerosol generating medium 30 and the patterned second aerosol generating medium 40 form complementary patterns.

[0074] For example, see Figure 12 and Figure 13 The patterned first aerosol generating medium 30 includes a plurality of first aerosol generating medium blocks 31, and the patterned second aerosol generating medium 40 includes a plurality of second aerosol generating medium blocks 41. The plurality of first aerosol generating medium blocks 31 and the plurality of second aerosol generating medium blocks 41 are arranged alternately to form a complementary pattern. The distance between two adjacent second aerosol generating medium blocks 41 is 0.1-5 mm. For example, it can be 0.1 mm, 0.5 mm, 2 mm, 3 mm, 4 mm, or 5 mm, etc.

[0075] Specifically, although the heat on the substrate 10 can be directly transferred to the first aerosol generating medium block 31, the existing heating method is difficult to achieve accurate temperature control. If the two adjacent second aerosol generating medium blocks 41 are too large, the energy transferred by the second aerosol generating medium blocks 41 and the heat absorbed by melting may not be able to maintain the temperature of the first aerosol generating medium block 31 in a relatively stable state. Therefore, setting the distance between the two adjacent second aerosol generating medium blocks 41 to 0.1-5mm allows the second aerosol generating medium blocks 41 to absorb a large amount of heat by melting, so that the temperature of the first aerosol generating medium 30 can be kept in a stable state, preventing the first aerosol generating medium 30 from scorching, which significantly improves the suction experience. In addition, the second aerosol generating medium 40 can keep the temperature relatively stable, eliminating the need for real-time temperature feedback and reducing the cost of temperature control and detection.

[0076] For example, see Figure 14 and Figure 15 The patterned second aerosol generating medium 40 has a plurality of openings (not shown in the figure) spaced apart, and the patterned first aerosol generating medium 30 includes a plurality of first aerosol generating medium blocks 31 spaced apart and having the same shape and size as the openings. Each first aerosol generating medium block 31 is accommodated in an opening, thereby forming a complementary pattern.

[0077] For example, see Figure 16 The patterned first aerosol generating medium 30 has a first engaging portion 32, and the patterned second aerosol generating medium 40 has a second engaging portion 42. The first engaging portion 32 and the second engaging portion 42 are complementary, thereby connecting the patterned first aerosol generating medium 30 and the patterned second aerosol generating medium 40 together through the first engaging portion 32 and the second engaging portion 42. Specifically, one of the first engaging portion 32 and the second engaging portion 42 has a first tooth shape, and the other has a second tooth shape complementary to the first tooth shape; or, one of the first engaging portion 32 and the second engaging portion 42 has a first arc shape, and the other has a second arc shape complementary to the first arc shape; or, one of the first engaging portion 32 and the second engaging portion 42 has a groove, and the other has a protrusion complementary to the groove. The specific design can be tailored to actual needs.

[0078] Specifically, unlike existing technologies, the aerosol generating matrix provided in this application includes a first aerosol generating medium 30 and a second aerosol generating medium 40 in the aerosol generating medium 20. The second aerosol generating medium 40 absorbs heat at a second temperature and changes from a first state to a second state. On the one hand, it can absorb and consume excess energy on the first aerosol generating medium 30, avoiding local scorching of the first aerosol generating medium 30. On the other hand, the second aerosol generating medium 40 has a high thermal conductivity, which can play a role in heat transfer, thereby maintaining the temperature stability of the first aerosol generating medium 30 and keeping the overall temperature of the aerosol generating medium 20 uniform. Real-time temperature feedback is not required, which can reduce the difficulty of temperature control technology and achieve uniform heating of the aerosol generating medium 20.

[0079] The above are merely embodiments of this application and do not limit the scope of this patent application. Any equivalent structural or procedural changes made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of this application.

Claims

1. An aerosol-generating product, characterized in that, include: Base; An aerosol generating medium is disposed on one side of the substrate, including a first aerosol generating medium and a second aerosol generating medium; wherein the first aerosol generating medium and the second aerosol generating medium are both patterned and disposed in the same layer; and the patterned first aerosol generating medium and the patterned second aerosol generating medium form complementary patterns. At the first temperature, both the first aerosol generating medium and the second aerosol generating medium are in a first state, which is solid. At the second temperature, the first aerosol generating medium remains in the first state, while the second aerosol generating medium changes to the second state. The process of the second aerosol generating medium changing from the first state to the second state is endothermic.

2. The aerosol-generating product according to claim 1, characterized in that, The second state is either liquid or gas.

3. The aerosol-generating product according to claim 1, characterized in that, At the third temperature, the first aerosol generating medium remains in the first state, while the second aerosol generating medium changes from the second state to the third state; the change from the second state to the third state is an endothermic process.

4. The aerosol-generating product according to claim 1, characterized in that, The patterned second aerosol generating medium has a plurality of openings spaced apart, and the patterned first aerosol generating medium includes a plurality of first aerosol generating medium blocks spaced apart and having the same shape and size as the openings, with each first aerosol generating medium block being accommodated within one of the openings.

5. The aerosol-generating product according to claim 1, characterized in that, The patterned first aerosol generating medium includes a plurality of first aerosol generating medium blocks, and the patterned second aerosol generating medium includes a plurality of second aerosol generating medium blocks. The plurality of first aerosol generating medium blocks and the plurality of second aerosol generating medium blocks are arranged alternately, and the distance between two adjacent second aerosol generating medium blocks is 0.1-5 mm.

6. The aerosol-generating product according to claim 1, characterized in that, The substrate includes: A photothermal conversion material layer, wherein the photothermal conversion material layer is used to absorb laser energy to generate heat energy; A thermally conductive layer is disposed between the photothermal conversion material layer and the aerosol generating medium, for transferring the heat energy generated by the photothermal conversion material layer to the aerosol generating medium.

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