Aerosol generation article

Abstract

An aerosol generation article (100), comprising a substrate (10) and an aerosol generation medium (20). The aerosol generation medium (20) is arranged on one side of the substrate (10) and comprises a first aerosol generation medium (30) and a second aerosol generation medium (40); at a first temperature, the first aerosol generation medium (30) and the second aerosol generation medium (40) are both in a first state which is a solid state; at a second temperature, the first aerosol generation medium (30) is maintained in a first state, and the second aerosol generation medium (40) is changed into a second state; and the process of the second aerosol generation medium (40) being changed from a first state to a second state is a heat absorption process. Specifically, by configuring the aerosol generation medium (20) to comprise a first aerosol generation medium (30) and a second aerosol generation medium (40), and the second aerosol generation medium (40) absorbs heat at a second temperature, and is changed from a first state to a second state, thereby keeping the temperature of the first aerosol generation medium (30) stable, reducing the difficulty of temperature control technology, and achieving uniform heating of the aerosol generation medium (20).

Description

Aerosol-generating products

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority based on Chinese patent application 202311050567.5 filed on August 18, 2023, and all its contents are incorporated herein by reference.

Technical field

[0003] The present application relates to the field of atomization technology, and in particular to an aerosol generating product. [Background Technology]

[0004] Low-temperature baking aerosol-generating products can greatly reduce the harmful substances in the aerosols produced after baking and heating, and thus gradually become a safer and healthier leisure activity.

[0005] However, since the main component of low-temperature baking aerosol-generating products is generally a solid aerosol-generating medium, such as solid media such as plant leaves containing specific aromas in filamentous, sheet-like, thin-sheet, granular, powdered, cylindrical, etc., solid media are prone to uneven heating, and existing heating methods make it difficult to accurately control the temperature of the solid medium to ensure uniform heating of the solid medium.

[0006] [Summary of the invention]

[0007] The present application provides an aerosol generating product that can solve the problem of uneven heating of solid media in existing aerosol generating products.

[0008] To solve the above problems, the present application provides a technical solution: providing an aerosol-generating product, comprising: a substrate; an aerosol-generating medium, arranged on one side of the substrate, comprising a first aerosol-generating medium and a second aerosol-generating medium; wherein, at a first temperature, the first aerosol-generating medium and the second aerosol-generating medium are both in a first state, which is a solid state; at a second temperature, the first aerosol-generating medium maintains the first state, and the second aerosol-generating medium changes to a second state; the process of the second aerosol-generating medium changing from the first state to the second state is an endothermic process.

[0009] In one embodiment, the second state is liquid or gaseous.

[0010] In one embodiment, at the third temperature, the first aerosol-generating medium is maintained in the first state, and the second aerosol-generating medium changes from the second state to the third state; the change of the second aerosol-generating medium from the second state to the third state is an endothermic process.

[0011] In one embodiment, the first aerosol-generating medium forms a first aerosol-generating medium layer, the 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.

[0012] 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 having a plurality of openings.

[0013] In one embodiment, the second aerosol generating medium layer is a patterned aerosol generating medium layer, and a plurality of openings divide the second aerosol generating medium layer into a plurality of independent second aerosol generating medium blocks, and the distance between two adjacent second aerosol generating medium blocks is 0.1-5 mm.

[0014] In one embodiment, 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.

[0015] In one embodiment, the patterned second aerosol generating medium has a plurality of openings arranged at intervals, and the patterned first aerosol generating medium includes a plurality of first aerosol generating medium blocks arranged at intervals and having the same shape and size as the openings, each first aerosol generating medium block being accommodated in one opening.

[0016] 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.

[0017] In one embodiment, the substrate includes: a photothermal conversion material layer, which is used to absorb laser energy to generate thermal energy; and a thermal conductive layer, which is arranged between the photothermal conversion material layer and the aerosol generating medium and is used to transfer the thermal energy generated by the photothermal conversion material layer to the aerosol generating medium.

[0018] Different from the existing technology, the aerosol-generating product provided in the present application is configured such that the aerosol-generating medium 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 can reduce the difficulty of temperature control technology and achieve uniform heating of the aerosol-generating medium.

Brief Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive effort, among which:

[0020] FIG1 is a schematic structural diagram of a specific implementation of the first embodiment of the aerosol generating article provided by the present application;

[0021] FIG2 is a cross-sectional view of the aerosol generating article shown in FIG1 along line AA;

[0022] FIG3 is a structural cross-sectional view along line AA of another specific embodiment of the first embodiment of the aerosol generating article provided by the present application;

[0023] FIG4 is a structural cross-sectional view along line AA of another specific embodiment of the first embodiment of the aerosol generating article provided by the present application;

[0024] FIG5 is a structural cross-sectional view along line AA of another specific embodiment of the first embodiment of the aerosol generating article provided by the present application;

[0025] FIG6 is a structural cross-sectional view along line AA of another specific embodiment of the first embodiment of the aerosol generating article provided by the present application;

[0026] FIG7 is a structural cross-sectional view along line AA of another specific embodiment of the first embodiment of the aerosol generating article provided by the present application;

[0027] FIG8 is a schematic structural diagram of a specific embodiment of a patterned aerosol-generating medium layer in the first embodiment of the aerosol-generating article provided by the present application;

[0028] FIG9 is a schematic structural diagram of another specific embodiment of the patterned aerosol-generating medium layer in the first embodiment of the aerosol-generating article provided by the present application;

[0029] FIG10 is a structural cross-sectional view along line AA of another specific embodiment of the first embodiment of the aerosol generating article provided by the present application;

[0030] FIG11 is a structural cross-sectional view along line AA of another specific embodiment of the first embodiment of the aerosol generating article provided by the present application;

[0031] FIG12 is a schematic structural diagram of a specific implementation of the second embodiment of the aerosol generating article provided by the present application;

[0032] FIG13 is a cross-sectional view of the aerosol generating article shown in FIG12 along line AA;

[0033] FIG14 is a schematic structural diagram of another specific implementation of the second embodiment of the aerosol generating medium provided by the present application;

[0034] FIG15 is a cross-sectional view of the aerosol generating article shown in FIG14 taken along line AA;

[0035] FIG16 is a top view of another specific implementation of the second embodiment of the aerosol-generating article provided by the present application;

[0036] FIG17 is a schematic structural diagram of a third embodiment of an aerosol-generating article provided by the present application;

[0037] FIG18 is a cross-sectional view of the aerosol generating article shown in FIG17 taken along line AA. [Specific implementation method]

[0038] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0039] The terms "first," "second," and "third" in this application are used only for descriptive purposes and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of such features. In the description of this application, "multiple" means at least two, for example, two, three, etc., unless otherwise specifically defined. All directional indications in the embodiments of this application (such as up, down, left, right, front, back...) are only used to explain the relative positional relationship, movement, etc. between the components under a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications also change accordingly. In addition, the terms "including" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions. 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 that are not listed, or may optionally include other steps or units that are inherent to these processes, methods, products, or devices.

[0040] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0041] The present application is described in detail below with reference to the accompanying drawings and embodiments.

[0042] The applicant's research has found that due to the low thermal conductivity of existing solid aerosol-generating media, areas close to the heat source tend to burn during baking, resulting in a poor aerosol taste. Furthermore, the aerosol-generating media located farther from the heat source suffers from insufficient thermal conductivity, leading to insufficient aerosol release and low user satisfaction. Furthermore, achieving rapid aerosol release requires precise temperature control technology, and current heating methods make it difficult to accurately regulate temperature.

[0043] To solve the above problems, refer to Figures 1 to 18, Figure 1 is a structural schematic diagram of a specific embodiment of the first embodiment of the aerosol generating article provided by the present application; Figure 2 is a structural cross-sectional view of the aerosol generating article shown in Figure 1 along line AA; Figure 3 is a structural cross-sectional view of another specific embodiment of the first embodiment of the aerosol generating article provided by the present application along line AA; Figure 4 is a structural cross-sectional view of another specific embodiment of the first embodiment of the aerosol generating article provided by the present application along line AA; Figure 5 is a structural cross-sectional view of another specific embodiment of the first embodiment of the aerosol generating article provided by the present application along line AA; Figure 6 is a structural cross-sectional view of another specific embodiment of the first embodiment of the aerosol generating article provided by the present application along line AA; Figure 7 is a structural cross-sectional view of another specific embodiment of the first embodiment of the aerosol generating article provided by the present application along line AA; Figure 8 is a structural schematic diagram of a specific embodiment of the patterned aerosol generating medium layer in the first embodiment of the aerosol generating article provided by the present application; Figure 9 is a structural cross-sectional view of the aerosol generating article provided by the present application A structural schematic diagram of another specific embodiment of the patterned aerosol generating medium layer in the first embodiment of the aerosol generating article; Figure 10 is a structural cross-sectional view of another specific embodiment of the first embodiment of the aerosol generating article provided by the present application along line AA; Figure 11 is a structural cross-sectional view of another specific embodiment of the first embodiment of the aerosol generating article provided by the present application along line AA; Figure 12 is a structural schematic diagram of a specific embodiment of the second embodiment of the aerosol generating article provided by the present application; Figure 13 is a structural cross-sectional view of the aerosol generating article shown in Figure 12 along line AA; Figure 14 is a structural schematic diagram of another specific embodiment of the second embodiment of the aerosol generating medium provided by the present application; Figure 15 is a structural cross-sectional view of the aerosol generating article shown in Figure 14 along line AA; Figure 16 is a top view of another specific embodiment of the second embodiment of the aerosol generating article provided by the present application; Figure 17 is a structural schematic diagram of the third embodiment of the aerosol generating article provided by the present application; Figure 18 is a structural cross-sectional view of the aerosol generating article shown in Figure 17 along line AA.

[0044] Specifically, the present application provides an aerosol-generating article 100 , comprising a substrate 10 and an aerosol-generating medium 20 , wherein the aerosol-generating medium 20 is disposed on one side of the substrate 10 and comprises a first aerosol-generating medium 30 and a second aerosol-generating medium 40 .

[0045] The shape of the aerosol-generating article 100 is not limited to the square sheet or cylindrical shape shown in Figures 1, 12, 14, and 17. It may also be a pie or prism. The cross-section perpendicular to line AA may be any shape, such as a triangle, a five-pointed star, an ellipse, a rectangle, or a diamond. The length and / or width of the aerosol-generating article 100 may be extended or reduced. This is not a limiting example.

[0046] The first aerosol-generating medium 30 can be a solid medium made of plant stems and leaves with a specific aroma, such as filaments, sheets, flakes, 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 a temperature above 250°C.

[0047] The second aerosol-generating medium 40 can be a solid substance in a gel state at room temperature, such as an oil containing a specific aroma, such as glycerin or propylene glycol, with a thickener added thereto. It is understood that, 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, and this is not limited here.

[0048] In which, at the first temperature, the first aerosol generating medium 30 and the second aerosol generating medium 40 are both in a first state, wherein the first temperature can be room temperature or a temperature lower than a first preset temperature, wherein the first preset temperature can be lower than 100°, and the states of the first aerosol generating medium 30 and the second aerosol generating medium 40 at the first preset temperature will not change; the first state is solid.

[0049] At the second temperature, the first aerosol generating medium 30 is maintained in the first state, and the second aerosol generating medium 40 is transformed into the second state; wherein, the second temperature may be greater than 100°, the second state may be a gaseous state or a liquid state, and the transformation of the second aerosol generating medium 40 into the second state may be an endothermic process such as melting or sublimation. It can be understood that the second aerosol generating medium 40 needs to absorb energy when it is transformed from a solid state to a gaseous state or a liquid state. Therefore, the second temperature is greater than the first temperature, and the transformation of the second aerosol generating medium 40 from the first state to the second state is an endothermic process.

[0050] Specifically, the aerosol-generating product 100 provided in the embodiment of the present application is provided with an aerosol-generating medium 20 including a first aerosol-generating medium 30 and a second aerosol-generating medium 40, and 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 in the first aerosol-generating medium 30, thereby avoiding local burning of the first aerosol-generating medium 30; on the other hand, the second aerosol-generating medium 40 has a high thermal conductivity and can play a role in transferring heat, thereby maintaining the temperature stability of the first aerosol-generating medium 30 and keeping the overall temperature of the aerosol-generating medium 20 uniform, without the need for real-time temperature feedback, thereby reducing the difficulty of temperature control technology and achieving uniform heating of the aerosol-generating medium 20.

[0051] In one embodiment, at the third temperature, the first aerosol-generating medium 30 is maintained in the first state, while the second aerosol-generating medium 40 transitions from the second state to the third state. The transition of the second aerosol-generating medium from the second state to the third state is a heat-absorbing process. In this embodiment, the second state may be a liquid, and the third state may be a gas. When the second aerosol-generating medium 40 transitions from solid to liquid, and vice versa, it simultaneously absorbs a large amount of heat and releases aerosol. This allows the temperature of the first aerosol-generating medium 30 to be maintained at a moderate and stable state during rapid heating, preventing it from burning, significantly improving the puffing experience. Furthermore, the second aerosol-generating medium 40 maintains a relatively stable temperature, eliminating the need for real-time temperature feedback and reducing temperature control and monitoring costs.

[0052] The first temperature may be a temperature value or a temperature range, the second temperature may be a temperature value or a temperature range, and the third temperature may be a temperature value or a temperature range.

[0053] In this embodiment, the second aerosol-generating medium 40 is a gel-like substance such as glycerin or propylene glycol that contains a specific aroma. The main component of the second aerosol-generating medium 40 liquefies at temperatures above 100°C. At temperatures above 250°C, the liquefied gel vaporizes, absorbing a large amount of heat and releasing an aerosol. It should be noted that due to the material properties, the amount of aerosol generated by heating the second aerosol-generating medium 40 is greater than that generated by heating the first aerosol-generating medium 30, thereby enhancing user satisfaction.

[0054] The aerosol generating article 100 may be heated by at least one of circumferential induction heating, central needle resistance heating, and laser heating.

[0055] Please continue to refer to Figure 3. In the embodiment of the present application, the aerosol generating product 100 is heated by laser heating, and the substrate 10 includes a photothermal conversion material layer 11 and a heat-conducting layer 12. The photothermal conversion material layer 11 is used to absorb laser energy and generate heat energy; the heat-conducting layer 12 is arranged 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.

[0056] The heat-conducting layer 12 includes, but is not limited to, materials with high thermal conductivity, such as aluminum foil, copper foil, and stainless steel.

[0057] The light-to-heat 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.

[0058] Of course, in another embodiment, the heat conductive layer 12 may not be provided, and the light-to-heat 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 .

[0059] The following description assumes that the heat source is a semiconductor laser chip, and that current is provided to the semiconductor laser chip to output laser light with a wavelength between 355 and 1550 nm. The description assumes that the second aerosol generating medium 40 is a gel-like substance containing a specific aroma such as glycerin or propylene glycol, and has a thickness of 0.01 mm to 0.5 mm. The description assumes that the thickness of the first aerosol generating medium 30 is 0.05 mm to 0.4 mm.

[0060] Specifically, the thickness of the second aerosol-generating medium 40 is set to 0.01mm-0.5mm. This is because upon heating, the second aerosol-generating medium 40 releases aerosol, which gradually vaporizes from a gel to a liquid to a gas. If the thickness is too thin, sufficient aerosol generation may not be achieved. If the thickness is too thick, a single heating step may not be sufficient to fully release all the gel, resulting in waste. The thickness of the first aerosol-generating medium 30 is set to 0.05mm-0.4mm. If the first aerosol-generating medium 30 is too thick, aerosol release may be poor, reducing the amount of aerosol released. If the first aerosol-generating medium 30 is too thin, the aerosol generated by the first aerosol-generating medium 30 may be insufficient, reducing the amount of aerosol released.

[0061] Of course, the first aerosol-generating medium 30 and the second aerosol-generating medium 40 may be provided with other suitable thickness ranges according to actual conditions, which are not limited here.

[0062] 1-11 , in the first embodiment of the present 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.

[0063] Referring to Figures 2 and 3 , specifically, 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 the second aerosol-generating medium layer absorbs heat, some of the heat is carried away by the released aerosol, while some of the heat is transferred to the first aerosol-generating medium layer. This allows both the first and second aerosol-generating medium layers to release aerosol simultaneously. Because the second aerosol-generating medium layer absorbs a large amount of heat as it melts, the temperature of the first aerosol-generating medium layer is easily maintained at a moderate and stable level. Furthermore, since the first aerosol-generating medium 30 requires a certain preheating period before generating aerosol, while the second aerosol-generating medium 40 can quickly emit mist once the required temperature is reached, in this embodiment, the second aerosol-generating medium layer absorbs heat first, enabling rapid aerosol release.

[0064] Referring to Figure 4, specifically, the first aerosol generating medium layer is arranged between the second aerosol generating medium layer and the substrate 10, and the heat source heats the photothermal conversion material layer 11. After the photothermal conversion material layer 11 absorbs laser energy, it heats the first aerosol generating medium layer through the heat conductive layer 12. After the first aerosol generating medium layer absorbs heat, part of the heat will be taken 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 and 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 easy to be moderate and maintained in a stable state.

[0065] Furthermore, in the first embodiment of the present application, one of the first aerosol generating medium layer and the second aerosol generating medium layer may be a patterned aerosol generating medium layer, and the patterned aerosol generating medium layer has a plurality of openings X.

[0066] Specifically, the first aerosol generated by heating the first aerosol generating medium 30 has a stronger original fragrance, and the second aerosol generated by heating the second aerosol generating medium 40 has a larger atomization amount. Therefore, by adjusting the proportion of the first aerosol and the second aerosol in the generated mixed aerosol, the taste requirements of different users can be met.

[0067] Referring to Figure 5 , a 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 in the second aerosol-generating medium layer, the substance 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. This, in turn, increases the proportion of first aerosol generated by the first aerosol-generating medium layer, thereby enhancing the original aroma of the mixed aerosol.

[0068] Referring to Figure 6 , the 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 in the first aerosol-generating medium layer, the substance 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. This, in turn, increases the proportion of second aerosol generated by the second aerosol-generating medium layer, reducing the original aroma of the mixed aerosol, and thus satisfying the taste requirements of different users.

[0069] Referring to Figure 7 , the 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 in the first aerosol-generating medium layer, the substance 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. This, in turn, increases the proportion of second aerosol generated by the second aerosol-generating medium layer, reducing the original aroma of the mixed aerosol, and thus satisfying the taste requirements of different users.

[0070] Taking the aerosol generating medium in a square sheet shape as an example, referring to FIG8 , the patterned aerosol generating medium layer may be an integral structure, and the plurality of openings X may be through holes provided on the patterned aerosol generating medium layer.

[0071] Alternatively, the patterned aerosol-generating medium layer may have a split structure. For example, as shown in FIG9 , the second aerosol-generating medium layer is a patterned aerosol-generating medium layer, wherein a plurality of openings X divide the second aerosol-generating medium layer into a plurality of independent second aerosol-generating medium blocks 41 . The distance between two adjacent second aerosol-generating medium blocks 41 is 0.1-5 mm, for example, 0.1 mm, 0.5 mm, 2 mm, 3 mm, 4 mm, or 5 mm.

[0072] Specifically, if two adjacent second aerosol-generating medium blocks 41 are too large, the portion of the first aerosol-generating medium layer projected between the two adjacent second aerosol-generating medium blocks 41 may not be sufficiently heated, resulting in insufficient heat transfer to the layer. This can hinder the layer from reaching the atomization temperature and lead to insufficient first aerosol release. In this embodiment, by setting the distance between two adjacent second aerosol-generating medium blocks 41 to 0.1-5 mm, effective heat transfer from the second aerosol-generating medium blocks 41 to the first aerosol-generating medium layer above them can be ensured, thus preventing insufficient heating of the first aerosol-generating medium layer and resulting in low atomization yield.

[0073] Furthermore, in the first embodiment of the present application, a patterned aerosol-generating medium layer can be disposed adjacent to a substrate 10, and the substrate 10 has a raised portion 13. The raised portion 13 extends into an opening (not shown) and contacts the other of the first aerosol-generating medium layer and the second aerosol-generating medium layer. As shown in Figures 10 and 11 , the patterned aerosol-generating medium layer is the patterned second aerosol-generating medium layer, and the raised portion 13 extends into the opening and contacts the first aerosol-generating medium layer.

[0074] Specifically, by providing the base 10 with a raised portion 13 that extends into the opening and contacts the non-patterned aerosol-generating medium layer, heat can be simultaneously transferred to the two stacked aerosol-generating matrix layers, thereby improving atomization efficiency. Furthermore, in this embodiment, the distance between adjacent medium blocks is not limited.

[0075] 13-16 , in the second embodiment of the present 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.

[0076] For example, referring to Figures 12 and 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.

[0077] Specifically, although the heat on the substrate 10 can be directly transferred to the first aerosol generating medium block 31, it is difficult to achieve accurate temperature control using existing heating methods. 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, the distance between the two adjacent second aerosol generating medium blocks 41 is set to 0.1-5mm. The second aerosol generating medium blocks 41 can be used to melt and absorb a large amount of heat to keep the temperature of the first aerosol generating medium 30 in a stable state, so that the first aerosol generating medium 30 will not burn, which is significantly helpful for the smoking experience; and the second aerosol generating medium 40 can make the temperature relatively stable, without the need for real-time temperature feedback, reducing the cost of temperature control detection.

[0078] For another example, referring to Figures 14 and 15, the patterned second aerosol generating medium 40 has a plurality of openings (not marked in the figures) arranged at intervals, and the patterned first aerosol generating medium 30 includes a plurality of first aerosol generating medium blocks 31 arranged at intervals and having the same shape and size as the openings, and each first aerosol generating medium block 31 is accommodated in an opening, thereby forming a complementary pattern.

[0079] For another example, referring to FIG16 , a patterned first aerosol-generating medium 30 has a first meshing portion 32, and a patterned second aerosol-generating medium 40 has a second meshing portion 42. The first meshing portion 32 and the second meshing portion 42 are complementary, so that the patterned first aerosol-generating medium 30 and the patterned second aerosol-generating medium 40 are connected together through the first meshing portion 32 and the second meshing portion 42. Here, one of the first meshing portion 32 and the second meshing portion 42 may be a first tooth-shaped portion, and the other may be a second tooth-shaped portion complementary to the first tooth-shaped portion; or one of the first meshing portion 32 and the second meshing portion 42 may be a first arc-shaped portion, and the other may be a second arc-shaped portion complementary to the first arc-shaped portion; or, one of the first meshing portion 32 and the second meshing portion 42 may be a groove-shaped portion, and the other may be a projection-shaped portion complementary to the groove. The specific design can be determined according to actual needs.

[0080] Specifically, different from the prior art, the aerosol-generating matrix provided in the present application includes a first aerosol-generating medium 30 and a second aerosol-generating medium 40, and the second aerosol-generating medium 40 absorbs heat at the second temperature and changes from the first state to the second state. On the one hand, it can absorb and consume excess energy on the first aerosol-generating medium 30, thereby avoiding local burning of the first aerosol-generating medium 30; on the other hand, the second aerosol-generating medium 40 has a high thermal conductivity and can play a role in transferring heat, thereby maintaining the temperature stability of the first aerosol-generating medium 30 and keeping the overall temperature of the aerosol-generating medium 20 uniform, without the need for real-time temperature feedback, thereby reducing the difficulty of temperature control technology and achieving uniform heating of the aerosol-generating medium 20.

[0081] The above is only an implementation method of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. An aerosol generating article, wherein: include: substrate; an aerosol generating medium, disposed on one side of the substrate, comprising a first aerosol generating medium and a second aerosol generating medium; Among them, 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 solid; at a second temperature, the first aerosol generating medium maintains in the first state, and the second aerosol generating medium changes to a second state; the second aerosol generating medium changes from the first state to the second state in an endothermic process.

2. An aerosol-generating article according to claim 1, wherein The second state is liquid or gas.

3. The aerosol-generating article of claim 1 , wherein: At the third temperature, the first aerosol generating medium is maintained in the first state, and the second aerosol generating medium is transformed from the second state to the third state; and the transformation of the second aerosol generating medium from the second state to the third state is an endothermic process.

4. An aerosol-generating article according to any one of claims 1 to 3, wherein: The first aerosol generating medium forms a first aerosol generating medium layer, the 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.

5. An aerosol-generating article according to claim 4, wherein 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.

6. An aerosol-generating article according to claim 5, wherein The second aerosol generating medium layer is the patterned aerosol generating medium layer, and the plurality of openings divide the second aerosol generating medium layer into a plurality of independent second aerosol generating medium blocks, and the distance between two adjacent second aerosol generating medium blocks is 0.1-5 mm.

7. An aerosol-generating article according to any one of claims 1 to 3, wherein: The first aerosol generating medium and the second aerosol generating medium are both patterned and arranged in the same layer; and the patterned first aerosol generating medium and the patterned second aerosol generating medium form a complementary pattern.

8. An aerosol-generating article according to claim 7, wherein The patterned second aerosol generating medium has a plurality of openings arranged at intervals, and the patterned first aerosol generating medium includes a plurality of first aerosol generating medium blocks arranged at intervals and having the same shape and size as the openings, and each first aerosol generating medium block is accommodated in one of the openings.

9. An aerosol-generating article according to claim 7, wherein: The patterned first aerosol generating medium includes a plurality of first aerosol generating medium blocks. 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.

10. The aerosol-generating article of claim 1, wherein: The substrate comprises: A photothermal conversion material layer, wherein the photothermal conversion material layer is used to absorb laser energy to generate thermal energy; The heat-conducting layer is disposed between the light-to-heat conversion material layer and the aerosol-generating medium, and is used to transfer the heat energy generated by the light-to-heat conversion material layer to the aerosol-generating medium.

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