A substrate segment, an aerosol-generating article and an aerosol-generating system

Abstract

The application relates to the aerosol generating technical field and provides a substrate section, an aerosol generating article and an aerosol generating system. The substrate section comprises an inner support body and a medium layer. The inner support body extends along a first direction. The inner support body is formed with a socket for inserting at least part of a heating element into the socket. The medium layer is at least partially located at the outer periphery of the inner support body. When the substrate section is heated by the heating element, the shrinkage rate of the medium layer is S1, and the shrinkage rate of the inner support body is S2, wherein S1-S2>0%. The shrinkage rate S1 of the medium layer is greater than the shrinkage rate S2 of the inner support body. During central heating and smoking, the shrinkage amount of the inner support body is relatively small, the inner support body plays a supporting role, the acting force between the heated surface of the socket and the heating element is small, the heated surface of the socket is prevented from being closely attached to the heating element to some extent, and thus the needle jamming phenomenon is improved.

Description

Technical Field

[0001] This application relates to the field of aerosol generation technology, and in particular to a matrix segment, an aerosol generation product, and an aerosol generation system. Background Technology

[0002] This section is intended to provide background or context for the embodiments of this application as set forth in the claims. The description herein is not intended to be a prior art simply because it is included in this section.

[0003] In related technologies, a central heating method is used to heat the substrate segment to form an aerosol. Central heating involves inserting a heating element inside the substrate segment. During heating, the substrate segment does not burn, thus releasing the aerosol through heating. However, after heating, the substrate segment tends to adhere tightly to the heating element, leading to a stuck pin phenomenon where the substrate segment becomes trapped in the device. Utility Model Content

[0004] In view of this, embodiments of this application aim to provide a matrix segment, an aerosol generation article, and an aerosol generation system to improve the pin jamming phenomenon.

[0005] To achieve the above objectives, embodiments of this application provide a matrix segment, comprising:

[0006] An inner support body extends along a first direction and is formed with a socket for at least a portion of the heating element to be inserted into the socket;

[0007] A dielectric layer, at least partially located on the outer periphery of the inner support;

[0008] When the matrix segment is heated by the heating element, the shrinkage rate of the medium layer is S1, and the shrinkage rate of the inner support is S2, wherein S1-S2>0%.

[0009] In some embodiments, 10% ≤ S1 - S2 ≤ 30%.

[0010] In some embodiments, the dielectric layer and the inner support are integrally formed structures.

[0011] In some embodiments, the medium layer and the inner support are formed using one of the following processes: co-extrusion, die casting, and injection molding.

[0012] In some embodiments, the cross-section is a plane perpendicular to the first direction, and the cross-sectional shape of the socket is circular, square, prismatic, regular hexagonal, or irregular.

[0013] In some embodiments, the inner support has a plurality of first air passages that pass through at least one end face of the inner support along the first direction.

[0014] In some embodiments, the inner support has a first micropore; and / or,

[0015] The inner support body generates aerosols when heated.

[0016] This application provides an aerosol generating article, which includes a functional segment and a matrix segment as described in any one of the above-mentioned embodiments, wherein the functional segment is disposed at one end of the matrix segment along the first direction.

[0017] In some embodiments, the functional segment includes at least one of a filtering segment, a support segment, and a cooling segment.

[0018] This application provides an aerosol generation system, including the matrix segment or the aerosol generation article described in any of the above claims. The aerosol generation system further includes an aerosol generation device with a heating element, which is inserted into the socket.

[0019] In the matrix segment provided in this application embodiment, the shrinkage rate S1 of the medium layer is greater than the shrinkage rate S2 of the inner support. During the central heating and suction process, the shrinkage of the inner support is relatively small, and the inner support plays a supporting role. The force between the heated surface of the insertion hole and the heating element is small, which to a certain extent avoids the heated surface of the insertion hole from tightly adhering to the heating element, thereby improving the pin jamming phenomenon. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the matrix segment structure in some embodiments of this application;

[0021] Figure 2 for Figure 1 A cross-sectional schematic diagram of the matrix segment shown;

[0022] Figure 3 for Figure 1 A schematic diagram of the matrix segment shown from another perspective;

[0023] Figure 4 This is a schematic diagram of the matrix segment in some other embodiments of this application;

[0024] Figure 5 This is a schematic diagram of the structure of the matrix segment in some embodiments of this application;

[0025] Figure 6 This is a schematic diagram of the matrix segment in some embodiments of this application;

[0026] Figure 7 This is a schematic diagram of the structure of the inner support in some embodiments of this application;

[0027] Figure 8 This is a schematic diagram of the internal support structure in some other embodiments of this application;

[0028] Figure 9 This is a schematic diagram of the internal support structure in some embodiments of this application;

[0029] Figure 10 This is a schematic diagram of the structure of the aerosol-generated article in some embodiments of this application;

[0030] Figure 11 for Figure 10 The diagram shows a perspective view of the aerosol-generated product.

[0031] Explanation of reference numerals in the attached figures

[0032] 100. Aerosol generation product; 1. Matrix section; 11. Inner support; 11a. Insertion hole; 11b. First air passage; 12. Medium layer; 2. Functional section; 21. Filter section; 22. Support section; 23. Cooling section; 3. Coating layer; 4. Plug section. Detailed Implementation

[0033] It should be noted that, unless otherwise specified, the embodiments and technical features in the embodiments of this application can be combined with each other, and the detailed descriptions in the specific implementation should be understood as explanations of the purpose of this application and should not be regarded as undue limitations on this application.

[0034] In the embodiments of this application, "first direction" refers to the direction shown in the accompanying drawings. It should be understood that these directional terms are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. The application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] In this application, "multiple" includes two or more.

[0036] In related technologies, during the heating and suction process, the shrinkage rate of the matrix segment is usually 10%-30%. The large shrinkage rate of the matrix segment causes it to adhere tightly to the heating element after heating and suction, making it difficult to extract the matrix segment from the heating element. This results in the matrix segment getting stuck in the device.

[0037] Please see Figures 1 to 9 This application provides a matrix segment 1, which includes an inner support 11 and a dielectric layer 12. The inner support 11 extends along a first direction and has an insertion hole 11a for at least a portion of a heating element to be inserted into the insertion hole 11a. The dielectric layer 12 is at least partially located on the outer periphery of the inner support 11. When the matrix segment 1 is heated by the heating element, the shrinkage rate of the dielectric layer 12 is S1, and the shrinkage rate of the inner support 11 is S2, wherein S1-S2>0%.

[0038] It should be noted that, in the embodiments of this application, unless otherwise stated, the circumferential direction is the direction surrounding the straight line extending along the first direction.

[0039] The dielectric layer 12 being at least partially located on the outer periphery of the inner support 11 means that at least a portion of the dielectric layer 12 surrounds the outer periphery of the inner support 11. Exemplarily, in some embodiments, the dielectric layer 12 may conform to the outer peripheral surface of the inner support 11, meaning there is no gap between the inner peripheral surface of the dielectric layer 12 and the outer peripheral surface of the inner support 11. In other embodiments, the inner peripheral surface of the dielectric layer 12 has at least a gap with the outer peripheral surface of the inner support 11.

[0040] The inner peripheral surface of the dielectric layer 12 refers to the surface of the dielectric layer 12 surrounding a straight line extending along the first direction.

[0041] The outer peripheral surface of the inner support 11 refers to the surface of the inner support 11 surrounding a straight line extending along the first direction.

[0042] At least a portion of the heating element is inserted into the socket 11a. The circumferential surface of the socket 11a is a heated surface, which faces the heating element to receive heat from it. The circumferential surface of the socket 11a being a heated surface means that the circumferential surface of the socket 11a faces the heating element and receives heat from it. Thus, with the heating element inserted into the socket 11a, the heat generated by the heating element is first transferred to the inner support 11, and then to the dielectric layer 12. The matrix section 1 uses central heating.

[0043] The heating element is inserted into the socket 11a, and there may be a gap between the heating element and the heated surface of the socket 11a.

[0044] Shrinkage rate is the percentage of shrinkage to the original size before shrinkage. Shrinkage refers to the difference between the original and original sizes. Specifically, the original diameter before shrinkage is the initial diameter of matrix segment 1 before aerosol release, defined as Da; the diameter after shrinkage is the remaining diameter of matrix segment 1 after aerosol release, defined as Db; the shrinkage rate is defined as S, then S = (Da - Db) / Da * 100%.

[0045] The shrinkage rate of the dielectric layer 12 is S1, the diameter of the dielectric layer 12 before shrinkage is Da1, and the diameter of the dielectric layer 12 after shrinkage is Db1. Then S1 = (Da1 - Db1) / Da1 * 100%.

[0046] The shrinkage rate S2 of the inner support 11, the diameter of the inner support 11 before shrinkage is Da2, and the diameter of the inner support 11 after shrinkage is Db2, then S2=(Da2-Db2) / Da2*100%.

[0047] It is understood that the diameter of the dielectric layer 12 refers to the maximum distance between two points of the projected shape of the dielectric layer 12 with a plane perpendicular to the first direction as the projection plane. The diameter of the inner support 11 refers to the maximum distance between two points of the projected shape of the inner support 11 with a plane perpendicular to the first direction as the projection plane.

[0048] Taking the example where both the inner support 11 and the dielectric layer 12 are cylindrical, the projected shape of the inner support 11 is circular, and the diameter of the inner support 11 is the diameter of the projected shape of the circle. The projected shape of the dielectric layer 12 is also circular, and the diameter of the dielectric layer 12 is the diameter of the projected shape of the circle.

[0049] In the embodiment of this application, the shrinkage rate S1 of the substrate segment 1 and the medium layer 12 is greater than the shrinkage rate S2 of the inner support 11. During the central heating and suction process, the shrinkage of the inner support 11 is relatively small, and the inner support 11 plays a supporting role. The force between the heated surface of the insertion hole 11a and the heating element is small, which to a certain extent avoids the heated surface of the insertion hole 11a from being tightly attached to the heating element, thereby improving the pin jamming phenomenon.

[0050] Please see Figures 10 to 11 This application provides an aerosol generating article 100, including a functional segment 2 and a matrix segment 1 as described in any embodiment of this application. The functional segment 2 is disposed at one end of the matrix segment 1 along a first direction.

[0051] This application provides an aerosol generation system, including a matrix segment 1 in any embodiment of this application or an aerosol generation article 100 in any embodiment of this application. The aerosol generation system also includes an aerosol generation device with a heating element, the heating element being inserted into a socket 11a.

[0052] The heating element is used to heat the matrix section 1 to generate an aerosol.

[0053] The heating element can convert electrical energy into heat energy, which acts on the matrix segment 1. After being heated, the matrix segment 1 can generate aerosol for user use.

[0054] For example, the aerosol generating apparatus further includes a housing and a power supply component disposed within the housing. The housing has a receiving chamber, and the power output section of the power supply component is disposed within the receiving chamber or around the side wall of the receiving chamber. When the matrix segment 1 or the aerosol generating article 100 is inserted into the receiving chamber at the part corresponding to the matrix segment 1, the power output section transmits electrical energy to the heating element in a contact or non-contact manner. The heating element receives the electrical energy and generates heat, thereby heating the matrix segment 1 and generating aerosol.

[0055] The heating element can generate heat through methods including, but not limited to, resistance heating, electromagnetic heating, infrared heating, ceramic heating, microwave heating, or laser heating. The heat generated by the heating element can be transferred to the substrate segment 1 through heat convection, heat conduction, or heat radiation. For example, resistance and electromagnetic heating primarily transfer heat to the substrate segment 1 through heat conduction or heat convection. Infrared heating, microwave heating, or laser heating primarily transfer heat to the substrate segment 1 through heat radiation. The heating element can heat the substrate segment 1 through one or more of these three methods: heat conduction, heat convection, and heat radiation.

[0056] In this embodiment, the first direction does not specifically refer to the direction in which the outer contour of the matrix segment 1 is longest. Specifically, the direction in which the aerosol-generated article 100 is inserted into the receiving chamber and the direction in which the aerosol-generated article 100 is removed from the receiving chamber are both parallel to the first direction. The length of the matrix segment 1 along the first direction may be longer, shorter, or the same as its length in other directions.

[0057] For example, when the outer contour of matrix segment 1 is cylindrical, the first direction is the axial direction of matrix segment 1. It should be noted that even when the axial length of matrix segment 1 is less than its diameter, the first direction of matrix segment 1 is still the axial direction. As another example, when the outer contour of matrix segment 1 is cuboid, the first direction is still the direction defined above, that is, the direction in which the aerosol-generated product 100 is placed and removed from the receiving chamber. The first direction of matrix segment 1 can be any of the length, width, or height of the cuboid.

[0058] In this embodiment, the dielectric layer 12 is generally cylindrical. The cylindrical shape can be a cylinder (i.e., with a circular cross-section), a prism (i.e., with a polygonal cross-section), an elliptical cylinder (i.e., with an elliptical cross-section), etc., and is not limited thereto.

[0059] In this embodiment, the inner support 11 is generally cylindrical. The cylindrical shape can be a cylinder (i.e., with a circular cross-section), a prism (i.e., with a polygonal cross-section), an elliptical cylinder (i.e., with an elliptical cross-section), etc., and is not limited thereto.

[0060] It should be noted that, unless otherwise stated, in the embodiments of this application, the cross-section is a plane perpendicular to the first direction.

[0061] For example, one end of the aerosol generating article 100 along a first direction faces the user. For ease of description, the two ends of the first direction are defined as the proximal lip end and the distal lip end. The proximal lip end refers to the end of the aerosol generating article 100 that is closer to the user when using it, and the distal lip end refers to the end of the aerosol generating article 100 that is farther away from the user when using it. During use, the aerosol generated by the aerosol generating article 100 is delivered to the user after flowing through the functional section 2 under the action of suction negative pressure. That is, the functional section 2 is downstream of the matrix section 1 along the first direction, i.e., the proximal lip end.

[0062] Functional segment 2 can provide at least one of the following functions: filtration, adsorption, aroma enhancement, dilution, cooling, and resistance adjustment.

[0063] Filtration function refers to the function of filtering out at least some of the particulate matter in aerosols.

[0064] Adsorption function refers to the ability to adsorb at least some impurities in aerosols. It can be understood that these impurities are substances that remove the active ingredients from the aerosol; the active ingredients are those that need to be provided to the user.

[0065] The aroma-enhancing function refers to the function of adding aroma-producing components to aerosols.

[0066] The dilution function refers to the function of reducing the concentration of active ingredients in aerosols.

[0067] Cooling function refers to the function of reducing the temperature of aerosols.

[0068] The suction resistance adjustment function refers to the function of reducing or increasing suction resistance. In this way, the flow rate and distribution of aerosols can be controlled, and the suction resistance and aerosol uniformity can be optimized.

[0069] In some embodiments, 10% ≤ S1 - S2 ≤ 30%. In other words, the difference between the shrinkage rate S1 of the dielectric layer 12 and the shrinkage rate S2 of the inner support 11 is between 10% and 30%.

[0070] In this embodiment, the difference between the shrinkage rate S1 of the medium layer 12 and the shrinkage rate S2 of the inner support 11 is between 10% and 30%. During the heating and suction process, the inner support 11 can provide good support and will not tightly compress the heating element. It can also take into account the manufacturing difficulty and avoid the process difficulty caused by the large difference between the shrinkage rate of the medium layer 12 and the shrinkage rate of the inner support 11 to a certain extent.

[0071] In some embodiments, the dielectric layer 12 may be generally a cylindrical structure extending axially along a first direction.

[0072] In some embodiments, the medium layer 12 includes plant materials, auxiliary materials, smoke-generating materials, adhesive materials, and fragrance materials.

[0073] Plant-based ingredients are used to generate aerosols upon heating. Additive ingredients provide skeletal support for the plant-based ingredients. Smoke-generating ingredients produce a large amount of smoke upon heating. Binder ingredients bind the component ingredients together. Fragrance ingredients provide characteristic aromas. Thus, the plant-based and smoke-generating ingredients ensure sufficient aerosol generation, while the fragrance ingredients enhance aroma release during inhalation, improving the user experience. Additive ingredients not only improve the flowability of the mixture but also create a porous structure in the medium layer 12, facilitating aerosol extraction and flow. Binder ingredients ensure a stable mixture of plant-based powder and additives, preventing a loose structure.

[0074] In one embodiment, the plant-based raw materials are one or more combinations of tobacco leaves, tobacco fragments, tobacco stems, tobacco dust, and aromatic plants, which are powdered after being crushed. The plant-based raw materials are the core source of the aroma, and the endogenous substances in them can provide users with physiological satisfaction. Endogenous substances, such as alkaloids, enter the bloodstream and promote the pituitary gland to produce dopamine, thereby achieving physiological satisfaction.

[0075] In one embodiment, the auxiliary raw material can be one or more combinations of inorganic fillers, lubricants, and emulsifiers. The inorganic fillers include one or more combinations of heavy calcium carbonate, light calcium carbonate, zeolite, attapulgite, talc, and diatomaceous earth. The inorganic fillers can provide skeletal support for the plant material, and also have micropores, which can increase the porosity of the medium layer 12, thereby increasing the aerosol release rate.

[0076] Lubricants include one or more of candelilla wax, carnauba wax, shellac, sunflower wax, rice bran, beeswax, stearic acid, and palmitic acid. Lubricants can increase the flowability of plant-based powders, reduce friction between powder particles, resulting in a more uniform overall density of the powder. They can also reduce the pressure required during extrusion molding and decrease wear on the extrusion die.

[0077] Emulsifiers include one or more combinations of polyglycerol fatty acid esters, Tween-80, and polyvinyl alcohol. Emulsifiers can, to some extent, slow down the loss of aroma compounds during storage, increase their stability, and improve the sensory quality of the product.

[0078] In one embodiment, the smoke-generating agent raw material may include one or more combinations of: monohydric alcohol (such as menthol); polyhydric alcohol (such as propylene glycol, glycerol, triethylene glycol, 1,3-butanediol, and tetraethylene glycol); esters of polyhydric alcohols (such as triacetin, triethyl citrate, a mixture of diacetin, triethyl citrate, methyl benzoate, and triglyceride); monocarboxylic acid; dicarboxylic acid; polycarboxylic acid (such as lauric acid and myristic acid) or aliphatic esters of polycarboxylic acids (such as dimethyl dodecanoate, dimethyl tetradecanoate, erythritol, 1,3-butanediol, tetraethylene glycol, triethyl citrate, propylene carbonate, ethyl lauryl carbonate, triacetin, mesoerythritol, a mixture of diacetin, diethyl octanoate, triethyl citrate, methyl benzoate, phenylacetic acid, ethyl vanillate, triglyceride, and lauryl acetate).

[0079] In one embodiment, the adhesive raw material achieves close contact with the component raw material through interfacial wetting, generating intermolecular attraction and thus serving to bind the component raw materials, such as powders and liquids. The adhesive raw material can be one or more combinations of natural plant extracts and non-ionic modified viscous polysaccharides, including tamarind polysaccharides, guar gum, and modified cellulose (such as carboxymethyl cellulose). The adhesive is used to bond particles together, preventing them from easily falling apart, and also improves the water resistance of the medium layer 12, and is harmless to the human body.

[0080] In one embodiment, the flavoring ingredient is used to provide characteristic aromas, such as hay, roasted sweetness, or solid or liquid substances of nicotine. The flavoring ingredient may include one or more combinations of tobacco, aromatic plant extracts, extracts, essential oils, and absolutes; the flavoring ingredient may also include monomeric aroma substances, such as one or more combinations of megastigmatrienone, neophytadiene, geraniol, nerol, etc.

[0081] In some embodiments, the inner support 11 generates an aerosol when heated. For example, the inner support 11 may include plant materials, additive materials, smoke-generating materials, adhesive materials, and fragrance materials, etc. In this way, the inner support 11 can be used to replenish the aerosol volume.

[0082] In some embodiments, the inner support 11 and the medium layer 12 can produce aerosols with the same flavor. For example, the inner support 11 and the medium layer 12 can be made from the same plant materials and flavoring materials.

[0083] In some embodiments, the inner support 11 and the medium layer 12 can also produce aerosols with different flavors. For example, the inner support 11 and the medium layer 12 can be made of different plant materials or flavoring materials.

[0084] In some embodiments, the inner support 11 does not generate aerosols when heated. For example, the inner support 11 contains no plant-based materials or smoke-generating agents. In this way, the inner support 11 can isolate the dielectric layer 12 from the heating element.

[0085] Some components of the inner support 11 can be the same as those of the medium layer 12. This is beneficial for the inner support 11 and the medium layer 12 to be integrally formed. Taking co-extrusion as an example, some components of the inner support 11 can be the same as those of the inner support 12. The interaction force and expansion force between the materials are the same, which is beneficial for the inner support 11 and the medium layer 12 to be co-extruded and formed, thereby improving the yield.

[0086] In some embodiments, the dielectric layer 12 and the inner support 11 are integrally formed. In other words, the dielectric layer 12 and the inner support 11 are manufactured using an integral forming process.

[0087] In this embodiment, the dielectric layer 12 and the inner support 11 are integrally formed. On the one hand, this facilitates the connection between the dielectric layer 12 and the inner support 11, reducing the assembly and fixing process between the dielectric layer 12 and the inner support 11 and improving production efficiency. On the other hand, during the use of the matrix segment 1, such as when it is heated and sucked or after the heating stops, it remains an integral structure, making it less likely for the dielectric layer 12 to disintegrate and fall off, thus reducing the risk of the dielectric layer 12 detaching from the inner support 11.

[0088] In some embodiments, the medium layer 12 and the inner support 11 are formed using one of the following processes: co-extrusion, die casting, and injection molding.

[0089] Co-extrusion of the media layer 12 and the inner support 11 is a processing method in which the materials of the media layer 12 and the inner support 11 are jointly processed through the interaction between the barrel and the extrusion screw of the extrusion device. The materials of the media layer 12 and the inner support 11 are heated and plasticized and pushed towards the discharge port by the extrusion screw, and formed by the extrusion die.

[0090] Die casting of the medium layer 12 and the inner support 11 involves hot pressing the materials of the medium layer 12 and the inner support 11 into a die casting mold.

[0091] Injection molding of the medium layer 12 and the inner support 11 involves the material of the medium layer 12 and the material of the inner support 11 being cooled and solidified in the injection mold.

[0092] In this embodiment, the medium layer 12 and the inner support 11 are formed into an integral structure by co-extrusion, die casting or injection molding process, which can improve the bonding strength of the interface between the medium layer 12 and the inner support 11, and has the characteristics of relatively short production cycle and high yield.

[0093] In some embodiments, please refer to Figures 3 to 6With a plane perpendicular to the first direction as the cross-section, the cross-sectional shape of the socket 11a is circular, square, prismatic, regular hexagonal or irregular.

[0094] As an example, the heating element can be needle-shaped extending along the first direction, and the cross-sectional shape of the heating element can match the cross-sectional shape of the socket 11a. For example, if the cross-sectional shape of the heating element is circular, the cross-sectional shape of the socket 11a can also be circular. If the cross-sectional shape of the heating element is square, the cross-sectional shape of the socket 11a can also be square.

[0095] In this embodiment, circles, squares, rhombuses, and regular hexagons are all regular shapes. The cross-sectional shape of the insertion hole 11a is a regular shape such as a circle, square, rhombus, or regular hexagon, which is beneficial for the design and manufacture of extrusion molds, die-casting molds, or injection molds, and reduces the design and manufacturing difficulty of the aforementioned molds. Irregular shapes refer to irregular shapes other than regular shapes. The cross-sectional shape of the insertion hole 11a is irregular. The cross-sectional shape of the insertion hole 11a can be designed as irregular according to the shape of the heating element, thereby improving the matching degree between the insertion hole 11a and the heating element.

[0096] In some embodiments, the cross-section is a plane perpendicular to the first direction, and the cross-sectional shape of the socket 11a can also be an ellipse, pentagon, octagon or other polygonal regular shapes.

[0097] In some embodiments, please refer to Figure 9 The inner support 11 has a plurality of first air passages 11b, which pass through at least one end face of the inner support 11 along a first direction.

[0098] The first air passage 11b is a hole or groove with a hydraulic diameter greater than 100 μm. In this way, aerosols can enter the first air passage 11b, be collected and guided by the first air passage 11b, and improve the utilization rate of active ingredients.

[0099] The active ingredient is the ingredient that needs to be provided to the user. The active ingredient in aerosols includes, but is not limited to, at least one of nicotine, flavoring substances, glycerin, propylene glycol, and plant polysaccharides.

[0100] In some embodiments, the first airway 11b passes through both ends of the inner support 11 along a first direction. Thus, airflow can flow from one end of the inner support 11 along the first airway 11b to the other end. Aerosols can flow more smoothly through the first airway 11b, enabling orderly delivery of aerosols with less flow resistance and better controllability, effectively improving aerosol extraction efficiency and enhancing the suction experience.

[0101] In some embodiments, the first airway 11b passes through one end of the inner support 11 along a first direction. Aerosols can enter the first airway 11b, which can act as a buffer for the aerosols, allowing them to be released slowly.

[0102] It should be noted that the hydraulic diameter refers to the ratio of four times the cross-sectional area to the perimeter. The cross-section refers to the section perpendicular to the streamlines of the fluid. For example, if the cross-sectional shape is a regular square, the hydraulic diameter is the ratio of four times the cross-sectional area to the perimeter of the square. Similarly, if the cross-sectional shape is circular, the hydraulic diameter is the diameter of the circular cross-section.

[0103] The shape of the flow section of the first air passage 11b is not limited. For example, the shape of the flow section of the first air passage 11b can be a regular shape such as a circle, ellipse, oval, polygon, or fan. The shape of the flow section of the first air passage 11b can also be an irregular shape.

[0104] In one embodiment, the number of first airways 11b can be one or more.

[0105] The arrangement of the first airways 11b is not limited. For example, multiple first airways 11b can be arranged along a straight line, along a curve, in a two-dimensional matrix, in multiple nested rings, in concentric circles, etc.

[0106] In one embodiment, the first airway 11b may be formed inside the inner support 11.

[0107] In one embodiment, the first airway 11b may be formed on the outer peripheral surface of the inner support 11. That is, the first airway 11b has a groove-shaped structure that opens toward the medium layer 12. The groove-shaped structure has the effect of improving the extraction of effective components in the edge portion of the inner support 11 and improving the uniformity during the suction process.

[0108] In some embodiments, please refer to Figure 7 and Figure 8 The inner support 11 has a first micropore. The first micropore is a pore with a hydraulic diameter of no more than 100 μm. The first micropore can not only increase the surface area of ​​the inner support 11, which facilitates heat transfer and improves heating efficiency, but also facilitates the flow of aerosols.

[0109] In some embodiments, the inner support 11 is a particle aggregate, with first micropores between the particles, and multiple first micropores interconnecting to form first microchannels. For example, the cross-sectional area and length of the first microchannels are naturally formed by the material components, and the expansion of the material components can form the first microchannels. Aerosols can flow through the first microchannels. Thus, the first micropores not only increase the surface area of ​​the inner support 11, facilitating heat transfer and improving heating efficiency, but also facilitate aerosol flow.

[0110] In some embodiments, the inner support 11 has a first microchannel and a first airway 11b, with the first microchannel communicating with the first airway 11b. When heated, the inner support 11 releases aerosols, which are collected in the first airway 11b through the first microchannel. Aerosols released by the medium material exposed to the first airway 11b (i.e., the material located on the inner surface of the first airway 11b) can be directly released into the first airway 11b. Aerosols between adjacent first airways 11b can also circulate between each other through the first microchannel and be transported to the end near the lip, i.e., the end where the functional segment 2 is located, under the action of suction negative pressure.

[0111] In some embodiments, the medium layer 12 has a plurality of second air passages that pass through at least one end face of the medium layer 12 along a first direction.

[0112] The second airway is a hole or groove with a hydraulic diameter greater than 100 μm. In this way, aerosols can enter the second airway, where they are collected and guided, improving the utilization rate of the active ingredients.

[0113] In some embodiments, the second airway extends through both ends of the medium layer 12 along the first direction. Thus, airflow can flow from one end of the medium layer 12 along the second airway to the other end. Aerosols can flow more smoothly through the second airway, enabling orderly delivery of aerosols with less flow resistance and better controllability, effectively improving aerosol extraction efficiency and enhancing the suction experience.

[0114] In some embodiments, the second airway extends through one end of the medium layer 12 along the first direction. Aerosols can enter the second airway, which acts as a buffer, allowing for slow release of the aerosols.

[0115] The shape of the flow cross section of the second air passage is not limited. For example, the shape of the flow cross section of the second air passage can be a regular shape such as a circle, ellipse, oval, polygon, or fan, or it can be an irregular shape.

[0116] In one embodiment, the number of second airways can be one or more.

[0117] The arrangement of the second airways is not limited. For example, multiple second airways can be arranged in a straight line, along a curve, in a two-dimensional matrix, in multiple nested rings, in concentric circles, etc.

[0118] In one embodiment, the second airway may be formed inside the medium layer 12.

[0119] In one embodiment, the second air passage may be formed on the outer peripheral surface of the medium layer 12. That is, the second air passage has a groove-shaped structure that opens outward. The groove-shaped structure has the effect of improving the extraction of effective components from the edge of the medium layer 12 and improving the uniformity during the suction process.

[0120] In some embodiments, the medium layer 12 is a particle aggregate, with second micropores between the particles, and multiple second micropores interconnecting to form second microchannels. For example, the cross-sectional area and length of the second microchannels are naturally formed by the material components, and the expansion of the material components can form the second microchannels. Aerosols can flow through the second microchannels. Thus, the second micropores not only increase the surface area of ​​the medium layer 12, facilitating heat transfer and improving heating efficiency, but also facilitate aerosol flow.

[0121] In some embodiments, the dielectric layer 12 has a second microchannel and a second airway, the second microchannel being connected to the second airway. When heated, the dielectric layer 12 releases aerosols, which are collected in the second airway through the second microchannel. Aerosols released by the dielectric material exposed to the second airway (i.e., the material located on the inner surface of the second airway) can be directly released into the second airway. Aerosols between adjacent second airways can also flow between each other through the second microchannel and be transported to the proximal end, i.e., the end where the functional segment 2 is located, under the action of suction negative pressure.

[0122] It should be noted that the first microchannel and second microchannel described in this application are different from the first air passage 11b and second air passage. The first microchannel and second microchannel are disordered. That is, the first microchannel and second microchannel are randomly generated. Disorder means that they are difficult to generate in an orderly manner according to the design. The first air passage 11b and second air passage are ordered, that is, they are mainly manufactured according to the design and are predictable. The first air passage 11b and second air passage described in this application are pores in a macroscopic sense, while the first microchannel and second microchannel are pores in a microscopic sense. The cross-sectional area and length of the first air passage 11b and second air passage are much larger than those of the first microchannel and second microchannel. The first air passage 11b and the second air passage are mainly formed by design and processing. For example, the first air passage 11b and the second air passage are formed by a mold, such as an extrusion mold. Therefore, the cross-sectional area and length of the first air passage 11b and the second air passage can be changed according to design requirements. The size of the first microchannel and the second microchannel is determined by the gap between particles. For example, if the material is granular, the inner support 11 of the material extrusion molding has micro-gap. The cross-sectional area and length of the first microchannel and the second microchannel are naturally formed by the extrusion process and the material composition. After the material flows out of the die, it expands to a certain extent, which can form the first microchannel and the second microchannel.

[0123] In some embodiments, the temperature at which the dielectric layer 12 generates aerosols when heated is between 100°C and 400°C.

[0124] For example, the temperature at which the medium layer 12 generates aerosol when heated can be any one of the following values ​​or a range between two points: 100°C, 110°C, 120°C, 150°C, 160°C, 200°C, 250°C, 280°C, 300°C, 350°C, 370°C, and 400°C.

[0125] In this embodiment, the temperature at which the aerosol is generated by heating the medium layer 12 is 100℃~400℃. On the one hand, the temperature of the medium layer 12 is moderate, and the effective substances of the medium layer 12 can be released, thereby generating a more abundant aerosol, making the shrinkage process basically controllable and uniform. On the other hand, the generated aerosol can be reduced to an acceptable temperature for the lips in a shorter stroke, reducing problems such as "burning the lips".

[0126] In an embodiment where the inner support 11 generates aerosols upon heating, the temperature at which the inner support 11 generates aerosols can be 100°C to 400°C.

[0127] For example, the temperature at which the inner support 11 generates aerosol when heated can be any one of the following values ​​or a range between two points: 100°C, 110°C, 120°C, 150°C, 160°C, 200°C, 250°C, 280°C, 300°C, 350°C, 370°C, and 400°C.

[0128] In this embodiment, the temperature at which the inner support 11 generates aerosol when heated is 100℃~400℃. On the one hand, the temperature of the inner support 11 is moderate, and the effective substances of the inner support 11 can be released, thereby generating a more abundant aerosol, making the shrinkage process basically controllable and uniform. On the other hand, the generated aerosol can be reduced to an acceptable temperature for the lips in a shorter stroke, reducing problems such as "burning the lips".

[0129] In some embodiments, a first component is added to the inner support 11 and / or the medium layer 12 to reduce the shrinkage rate. The first component includes one of chitosan, cellulose, cellulose derivatives, carbon nanofibers, ceramics, talc, and metal composites.

[0130] As an example, the first component includes one of chitosan, cellulose, cellulose derivatives, carbon nanofibers, ceramics, talc, and metal complexes.

[0131] As an example, the first component includes multiple components such as chitosan, cellulose, cellulose derivatives, carbon nanofibers, ceramics, talc, and metal complexes. "Multiple components" includes two or more components.

[0132] Taking chitosan as an example, the chitosan molecular chain contains a large number of hydroxyl (-OH) and amino (-NH2) groups, which can form strong hydrogen bonds with water molecules or other polar substances, reducing volume shrinkage during heating and suction. Therefore, chitosan can reduce the amount of shrinkage, thereby reducing the shrinkage rate.

[0133] Taking cellulose as an example, cellulose molecular chains are rich in hydroxyl groups (-OH), which can form a three-dimensional network structure through intermolecular hydrogen bonds. During heating and suction, this restricts the free movement of molecular chains and reduces volume shrinkage caused by water loss. In embodiments where the first component includes cellulose and chitosan, cellulose and chitosan can form a denser network structure through chemical cross-linking or physical entanglement, further inhibiting shrinkage and deformation.

[0134] In this embodiment, the first component has good safety profile and can inhibit shrinkage, reduce the amount of shrinkage, and thus reduce the shrinkage rate. Therefore, if the shrinkage rate of the medium layer 12 is too large and needs to be reduced, the first component is added to the medium layer 12; if the shrinkage rate of the inner support 11 is too large and needs to be reduced, the first component is added to the inner support 11. In this way, the shrinkage rates of the medium layer 12 and the inner support 11 can be adjusted, thereby adjusting the difference between the shrinkage rates of the medium layer 12 and the inner support 11.

[0135] In some embodiments, the difference between the shrinkage rate of the inner support 11 and the shrinkage rate of the medium layer 12 can be adjusted by adjusting the relative proportions of the first component in the inner support 11 and the first component in the medium layer 12. That is, both the inner support 11 and the medium layer 12 contain the first component, but different relative proportions of the first component in the inner support 11 and the first component in the medium layer 12 can result in different shrinkage rates.

[0136] In some embodiments, a second component is added to the inner support 11 and / or the medium layer 12 to increase the shrinkage rate. The second component includes one of arabinose, xylose, sucrose, and fructose.

[0137] As an example, the second component includes one of arabinose, xylose, sucrose, and fructose.

[0138] As an example, the second component includes a variety of arabinose, xylose, sucrose, and fructose.

[0139] Taking arabinose as an example, the hydroxyl structure of arabinose gives it strong hygroscopicity. Furthermore, arabinose may undergo caramelization to generate viscous substances, which can exacerbate the shrinkage stress of the medium or outer coating and increase the shrinkage rate.

[0140] Taking xylose as an example, the hydroxyl structure of xylose gives it strong hygroscopicity. Xylose can increase the shrinkage rate by adjusting the rate of moisture release, thereby aggravating the shrinkage stress of the medium layer 12 or the inner support 11.

[0141] In this embodiment, the second component has good safety profile and can promote shrinkage, increase the amount of shrinkage, and thus increase the shrinkage rate. Therefore, if the shrinkage rate of the medium layer 12 is too small and needs to be increased, the second component is added to the medium layer 12; if the shrinkage rate of the inner support 11 is too small and needs to be increased, the second component is added to the inner support 11. In this way, the shrinkage rates of the medium layer 12 and the inner support 11 can be adjusted, thereby adjusting the difference between the shrinkage rates of the medium layer 12 and the inner support 11.

[0142] In some embodiments, the difference between the shrinkage rate of the inner support 11 and the shrinkage rate of the medium layer 12 can be adjusted by adjusting the relative proportions of the second component in the inner support 11 and the second component in the medium layer 12. That is, both the inner support 11 and the medium layer 12 contain the second component, but different relative proportions of the second component in the inner support 11 and the second component in the medium layer 12 can result in different shrinkage rates.

[0143] In some embodiments, please refer to Figure 10 and Figure 11 The aerosol generating article 100 includes a coating layer 3, which is wrapped around the functional segment 2 and the medium layer 12.

[0144] In this embodiment, on the one hand, the encapsulation layer 3 can protect the functional segment 2 and the dielectric layer 12, reducing the contact between the functional segment 2 and the dielectric layer 12 and external objects. On the other hand, the encapsulation layer 3 can also tightly wrap the functional segment 2 and the dielectric layer 12, combining the functional segment 2 and the matrix segment 1 into a whole.

[0145] In some embodiments, the medium layer 12 is bonded to the encapsulation layer 3.

[0146] As an example, the medium layer 12 and the wrapping layer 3 can be bonded by means of adhesives, double-sided tape, tape or solvent bonding.

[0147] Adhesives include, but are not limited to, epoxy resins, instant adhesives, or hot melt adhesives.

[0148] In this embodiment, the medium layer 12 is bonded to the encapsulation layer 3, which can strengthen the connection between the medium layer 12 and the encapsulation layer 3 and reduce the risk of the matrix segment 1 coming off the encapsulation layer 3.

[0149] In some embodiments, the dielectric layer 12 and the encapsulation layer 3 are interference-fitted.

[0150] As an example, the encapsulation layer 3 is wound circumferentially to form a placement cavity, and the matrix segment 1 can be filled into the placement cavity from one end in the first direction. The outer peripheral surface of the medium layer 12 abuts against the wall of the placement cavity to achieve an interference fit.

[0151] In this embodiment, the medium layer 12 and the wrapping layer 3 are interference-fitted, which can reduce the use of adhesives, double-sided tape and other bonding materials, and make the assembly method simpler.

[0152] In some embodiments, functional segment 2 is bonded to wrapping layer 3.

[0153] As an example, functional segment 2 and wrapping layer 3 can be bonded by means of adhesives, double-sided tape, tape or solvent bonding.

[0154] In this embodiment, the functional segment 2 is bonded to the wrapping layer 3, which can strengthen the connection between the functional segment 2 and the wrapping layer 3 and reduce the risk of the functional segment 2 coming off the wrapping layer 3.

[0155] In some embodiments, functional segment 2 is interference-fitted with encapsulation layer 3.

[0156] As an example, the wrapping layer 3 is wound circumferentially to form a placement cavity, and the functional segment 2 can be filled into the placement cavity from one end in the first direction. The outer peripheral surface of the functional segment 2 abuts against the wall of the placement cavity to achieve an interference fit.

[0157] In this embodiment, the functional segment 2 and the wrapping layer 3 are interference-fitted, which can reduce the use of adhesives, double-sided tape and other bonding materials, and make the assembly method simpler.

[0158] In some embodiments, please refer to Figure 11 The aerosol generating product 100 includes a plug section 4, which is located at one end of the matrix section 1 away from the functional section 2 along a first direction, and the outer periphery of the plug section 4 is wrapped by a wrapping layer 3.

[0159] In this embodiment, the plug section 4 can block the end of the matrix section 1 away from the functional section 2 along the first direction, which can reduce the risk of the matrix section 1 coming off the wrapping layer 3.

[0160] In some embodiments, the plug segment 4 is bonded to the wrapping layer 3.

[0161] As an example, the plug section 4 and the wrapping layer 3 can be bonded by means of adhesive, double-sided tape, tape or solvent bonding.

[0162] In this embodiment, the plug segment 4 is bonded to the wrapping layer 3, which can strengthen the connection between the plug segment 4 and the wrapping layer 3 and reduce the risk of the plug segment 4 coming off the wrapping layer 3.

[0163] In some embodiments, the plug section 4 is interference-fitted with the wrapping layer 3.

[0164] As an example, the wrapping layer 3 is wound circumferentially to form a placement cavity, and the plug section 4 can be filled into the placement cavity from one end in the first direction. The outer peripheral surface of the plug section 4 abuts against the wall of the placement cavity to achieve an interference fit.

[0165] In this embodiment, the plug section 4 and the wrapping layer 3 are interference-fitted, which can reduce the use of adhesives, double-sided tape and other bonding materials, and make the assembly method simpler.

[0166] The number of functional segments 2 is unlimited; there can be one or more functional segments 2. In embodiments where there are multiple functional segments 2, the wrapping layer 3 can wrap around the outer periphery of all functional segments 2. In this way, the wrapping layer 3 can also fix all functional segments 2 into a whole.

[0167] In some embodiments, please refer to Figures 10 to 11 Functional segment 2 includes at least one of filter segment 21, support segment 22 and cooling segment 23.

[0168] For example, functional segment 2 includes one of filter segment 21, support segment 22 and cooling segment 23.

[0169] For example, functional segment 2 includes two of the following: filter segment 21, support segment 22, and cooling segment 23.

[0170] For example, functional segment 2 includes three of the following: filter segment 21, support segment 22, and cooling segment 23.

[0171] Filter section 21 can block substances of the target particle size and also adjust the suction resistance. For example, filter section 21 can filter large-diameter particles similar to powder. Aerosols filtered through filter section 21 have a higher particle size uniformity and a smoother taste.

[0172] The support segment 22 can withstand the temperature from the aerosol in the matrix segment 1 and maintain its shape. The support segment 22 serves a supporting function.

[0173] The cooling section 23 is used to lower the temperature of the aerosol, thus making the aerosol suitable for user application.

[0174] In this embodiment, the filter section 21 provides a filtration function, the support section 22 provides a support function, and the cooling section 23 provides a cooling function. The functional section 2 can include at least one of the filter section 21, the support section 22, and the cooling section 23 as needed to improve the user experience.

[0175] As an example, functional segment 2 includes a filtering segment 21 and a cooling segment 23, which are arranged sequentially from the proximal lip end to the distal lip end. A wrapping layer 3 is wrapped around the outer periphery of both the filtering segment 21 and the cooling segment 23. In this way, the wrapping layer 3 fixes the filtering segment 21 and the cooling segment 23 into a whole.

[0176] As an example, functional segment 2 includes a filter segment 21, a support segment 22, and a cooling segment 23, which are arranged sequentially from the proximal lip end to the distal lip end. A wrapping layer 3 is wrapped around the outer periphery of the filter segment 21, the support segment 22, and the cooling segment 23. In this way, the wrapping layer 3 fixes the filter segment 21, the support segment 22, and the cooling segment 23 into a whole.

[0177] The structural shape of the filter section 21, cooling section 23 and support section 22 is not limited, and at least one of the filter section 21, cooling section 23 and support section 22 can adopt a corrugated structure.

[0178] For example, the cooling section 23 can form a hollow channel that passes through both ends of the cooling section 23 along the first direction.

[0179] In this application, a comparative experiment was conducted using three comparative examples and five embodiments of this application, as detailed below:

[0180] The matrix segments of the three comparative examples and the five embodiments of this application were placed in the same test environment for testing, wherein the same heating element was used to circumferentially heat the matrix segments and the heating temperature was the same.

[0181] Comparative Example 1

[0182] In Comparative Example 1, S1-S2 = -30%, meaning that the shrinkage rate of the medium layer is 30% smaller than that of the inner support. After heating, the inner support and the heating element fit together very tightly.

[0183] Comparative Example 2

[0184] In Comparative Example 2, S1-S2 = -10%, meaning that the shrinkage rate of the medium layer is 10% smaller than that of the inner support. After heating, the inner support and the heating element fit together tightly.

[0185] Comparative Example 3

[0186] In Comparative Example 3, S1-S2 = 0%, meaning the shrinkage rate of the medium layer is equal to the shrinkage rate of the inner support. After heating, the inner support adheres to the heating element.

[0187] Example 1 of this application

[0188] In the first embodiment of this application, S1-S2 = 10%, that is, the shrinkage rate of the medium layer 12 is 10% greater than the shrinkage rate of the inner support 11. After heating, a small gap is generated between the inner support 11 and the heating element.

[0189] Example 2 of this application

[0190] In Embodiment 2 of this application, S1-S2 = 30%, that is, the shrinkage rate of the medium layer 12 is 30% greater than the shrinkage rate of the inner support 11. After heating, a large gap is generated between the inner support 11 and the heating element.

[0191] Example 3 of this application

[0192] In Embodiment 3 of this application, S1-S2 = 50%, that is, the shrinkage rate of the medium layer 12 is 50% greater than the shrinkage rate of the inner support 11. After heating, a large gap is generated between the inner support 11 and the heating element.

[0193] Example 4 of this application

[0194] In Embodiment 4 of this application, S1-S2 = 70%, that is, the shrinkage rate of the medium layer 12 is 70% greater than the shrinkage rate of the inner support 11. After heating, a large gap is generated between the inner support 11 and the heating element.

[0195] Example 5 of this application

[0196] In Embodiment 4 of this application, S1-S2 = 90%, that is, the shrinkage rate of the medium layer 12 is 90% greater than the shrinkage rate of the inner support 11. After heating, a large gap is generated between the inner support 11 and the heating element.

[0197] For the above comparative tests, Table 1 records the cold drawing resistance of the matrix section 1 being pulled out from the heating element in the above comparative examples and embodiments of this application. Please refer to Table 1 for details.

[0198] Table 1

[0199]

[0200]

[0201] According to Table 1, it can be seen that when the difference between the shrinkage rate of the medium layer 12 and the shrinkage rate of the inner support 11 increases from -30% (Comparative Example 1) to 10% (Example 1 of this application), the cold drawing resistance and the probability of pin jamming are greatly reduced. When the difference between the shrinkage rate of the medium layer 12 and the shrinkage rate of the inner support 11 is greater than 10% (Examples 1 to 5 of this application), the cold drawing resistance and the probability of pin jamming are very small.

[0202] In the description of this application, the references to terms such as "in one embodiment," "in some embodiments," "in other embodiments," "in yet another embodiment," or "exemplary," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this application, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine the different embodiments or examples described in this application, as well as the features of the different embodiments or examples.

[0203] The above description is merely a preferred embodiment of this application and is not intended to limit the application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application are included within the scope of protection of this application.

Claims

1. A matrix segment, characterized in that, include: An inner support body extends along a first direction and is formed with a socket for at least a portion of the heating element to be inserted into the socket; A dielectric layer, at least partially located on the outer periphery of the inner support; When the matrix segment is heated by the heating element, the shrinkage rate of the medium layer is S1, and the shrinkage rate of the inner support is S2, wherein S1-S2>0%.

2. The matrix segment according to claim 1, characterized in that, 10% ≤ S1 - S2 ≤ 30%.

3. The matrix segment according to claim 1, characterized in that, The medium layer and the inner support are integrally formed structures.

4. The matrix segment according to claim 3, characterized in that, The medium layer and the inner support are formed using one of the following processes: co-extrusion, die casting, and injection molding.

5. The matrix segment according to claim 1, characterized in that, With a plane perpendicular to the first direction as the cross-section, the cross-sectional shape of the socket is circular, square, prismatic, regular hexagonal, or irregular.

6. The matrix segment according to claim 1, characterized in that, The inner support has a plurality of first air passages, the first air passages passing through at least one end face of the inner support along the first direction.

7. The matrix segment according to claim 1, characterized in that, The inner support has a first micropore; and / or, The inner support body generates aerosols when heated.

8. An aerosol-generating product, characterized in that, The aerosol-generating article includes a functional segment and a matrix segment as described in any one of claims 1 to 7, wherein the functional segment is disposed at one end of the matrix segment along the first direction.

9. The aerosol-generating product according to claim 8, characterized in that, The functional section includes at least one of a filtration section, a support section, and a cooling section.

10. An aerosol generation system, characterized in that, The aerosol generation system includes the matrix segment as described in any one of claims 1 to 7 or the aerosol generation article as described in any one of claims 8 to 9, and further includes an aerosol generation device having a heating element inserted into the socket.

Images