An aerosol-generating article and aerosol-generating system

Abstract

Embodiments of the present application provide an aerosol generating article and an aerosol generating system. The aerosol generating article includes a front plug section, a substrate section, and a function section arranged in sequence along a first direction, the substrate section being configured to be heated by a heating element to generate an aerosol, and the front plug section being disposed at a distal end of the substrate section. The front plug section is an integral structure. By arranging the front plug section as an integral structure, the integral structure has good stability, so that the front plug section can better cooperate with the aerosol generating device, which is conducive to improving the heating efficiency of the aerosol generating device on the aerosol generating article, improving the user's smoking experience, and also improving the manufacturing efficiency of the aerosol generating article.

Description

Cross-references to related applications

[0001] This application is based on and claims priority to Chinese Patent Application No. 202510574764.X, filed on April 30, 2025, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of atomized aerosol technology, and in particular to an aerosol generating product and an aerosol generating system. Background Technology

[0003] Aerosol generating products generally produce aerosols through heating without combustion. Specifically, aerosol generating products use an external heat source to heat the aerosol generating matrix in the product to produce aerosols. The aerosol generating matrix does not burn, but instead loads an atomizing agent. When used, the atomizing agent is released by heating to form smoke.

[0004] In related technologies, a plug is provided at the distal lip of the aerosol generating product to cooperate with the aerosol generating device. However, the stability of the plug is poor, which affects the compatibility of the aerosol generating product, reduces the heating efficiency of the aerosol generating device on the aerosol generating product, and reduces the user's suction experience. Summary of the Invention

[0005] In view of this, the embodiments of this application aim to provide an aerosol generating article and an aerosol generating system to improve the stability of the fore-plug section, so as to ensure the adaptability of the aerosol generating article.

[0006] One embodiment of this application provides an aerosol generating article, comprising: a front plug section, a matrix section, and a functional section arranged sequentially along a first direction, wherein the matrix section is used to be heated by a heating element to generate an aerosol; and the front plug section is disposed at the distal lip end of the matrix section. The front plug section is a one-piece structure.

[0007] In some embodiments, the forepump section is a one-piece structure made of a powder mixture.

[0008] In some embodiments, the powder mixture includes magnetic powder selected from iron, cobalt, nickel, and one or more of iron, cobalt, and nickel; and / or, the powder mixture includes conductive powder selected from one or more of gold, silver, copper, iron, cobalt, nickel, aluminum, tungsten, platinum, lead, germanium, TiO2, NiO, ZnO, ZnInS, CdS, and C3N4.

[0009] In some embodiments, the powder mixture comprises magnetic powder, and the permeability of the forepump section is 2.0 × 10⁻⁶. -5 H / m ~ 1.0 × 10 -3 H / m.

[0010] In some embodiments, the powder mixture comprises conductive powder, and the resistivity of the forepump section is 1.0 × 10⁻⁶. -4 Ω·m ~ 2.0×10 2 Ω·m.

[0011] In some embodiments, the pre-plug section comprises one or more combinations of cellulose materials, starch materials, fillers, gum materials, and sugar materials.

[0012] In some embodiments, the front plug section is cylindrical, and the diameter of the front plug section is 5mm to 8mm; And / or, the size of the front plug section along the first direction is 3mm to 10mm.

[0013] In some implementations, the hardness of the forepump section is not less than 90%.

[0014] In some embodiments, the outer peripheral surface of the fore-plug segment is provided with at least one groove that penetrates the end faces of opposite ends of the fore-plug segment along the first direction, and the ratio of the total area of ​​the at least one groove on the outer peripheral surface of the fore-plug segment to the area of ​​the outer peripheral surface of the fore-plug segment is 60% to 80%.

[0015] In some embodiments, the outer peripheral surface of the front plug section is provided with at least one groove that penetrates the end faces of opposite ends of the front plug section along the first direction; The at least one groove includes at least one straight groove, and / or the at least one groove includes at least one spiral groove.

[0016] In some embodiments, the fore-plug section is provided with at least one air passage that extends through the end faces of opposite ends of the fore-plug section along the first direction, and the ratio of the sum of the total cross-sectional areas of the at least one air passage to the cross-sectional area of ​​the fore-plug section is 10% to 80%.

[0017] In some embodiments, the front plug section is provided with a receiving hole that penetrates the end faces of opposite ends of the front plug section along the first direction, for the heating element of the aerosol generating device to pass through. The ratio of the cross-sectional area of ​​the receiving hole to the cross-sectional area of ​​the front plug section is 10% to 40%.

[0018] In some embodiments, the front plug section is provided with a receiving hole that penetrates the end faces of opposite ends of the front plug section along the first direction, for the heating element of the aerosol generating device to pass through. The cross-sectional shape of the receiving hole is circular, triangular, rectangular, or square.

[0019] In some embodiments, the front plug section is provided with at least one air passage that extends through the end faces of opposite ends of the front plug section along the first direction; The front plug section is provided with a receiving hole, which penetrates the end faces of the opposite ends of the front plug section along the first direction, for the heating element of the aerosol generating device to pass through. The ratio of the total cross-sectional area of ​​the at least one airway to the cross-sectional area of ​​the receiving hole is 1 to 2.

[0020] In some embodiments, the front plug section is provided with a receiving hole that extends through opposite ends of the front plug section along the first direction for the heating element of the aerosol generating device to pass through; the front plug section is provided with a plurality of air passages arranged around the receiving hole.

[0021] In some embodiments, the cross-sectional area of ​​each of the air passages is the same, and the plurality of air passages are uniformly arranged circumferentially along the receiving hole; or, the plurality of air passages are divided into at least two groups, each air passage in each group is arranged along the same virtual circle, wherein the receiving hole is located at the center of the virtual circle, and the cross-sectional area of ​​the air passages in at least two groups is different.

[0022] This application provides an aerosol generation system according to a second embodiment, comprising: An aerosol generating device having a receiving cavity; and the aerosol-generating article as described in any of the above embodiments; at least a portion of the aerosol-generating article is housed in the receiving cavity. The aerosol generating device includes a heating element for heating the matrix section contained in the receiving cavity to generate aerosol.

[0023] The aerosol generating product and aerosol generating system of this application embodiment, by setting the front plug section as an integral structure, the integral structure has better stability, so that the front plug section can cooperate well with the aerosol generating device, which is conducive to improving the heating efficiency of the aerosol generating device for the aerosol generating product, improving the user's suction experience, and at the same time, improving the manufacturing efficiency of the aerosol generating product. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the first aerosol-generating article provided in the embodiments of this application; Figure 2 for Figure 1 A schematic diagram of the front plug section in the middle; Figure 3 for Figure 2 Another perspective illustration; Figure 4 This is a schematic diagram of the structure of the forepump section in the second aerosol generating article provided in the embodiments of this application; Figure 5 for Figure 4 Another perspective illustration; Figure 6 A schematic diagram of the front plug section in the third aerosol generating article provided in this application embodiment; Figure 7 A schematic diagram of the structure of the forepump section in the fourth aerosol generating article provided in the embodiments of this application; Figure 8 A schematic diagram of the structure of the forepump section in the fifth aerosol generating article provided in the embodiments of this application; Figure 9 A schematic diagram of the structure of the forepump section in the sixth aerosol generating article provided in the embodiments of this application; Figure 10 A schematic diagram of the structure of the forepump section in the seventh aerosol generating article provided in the embodiments of this application; Figure 11 A schematic diagram of the structure of the forepump section in the eighth aerosol generating article provided in this application embodiment; Figure 12 This is a schematic diagram of an aerosol generation system provided in an embodiment of this application.

[0025] Explanation of reference numerals in the attached figures 1. Aerosol generating product; 11. Front plug section; 11a. Groove; 11b. Air passage; 11c. Receiving hole; 12. Matrix section; 13. Functional section; 2. Aerosol generating device; 2a. Receiving cavity; 20. Outer shell; 21. Heating element; 22. Battery. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0027] The specific technical features described in the specific embodiments can be combined in any suitable manner without contradiction. For example, different combinations of specific technical features can form different embodiments and technical solutions. To avoid unnecessary repetition, the various possible combinations of the specific technical features in this application will not be described separately.

[0028] In the following description, the terms "first," "second," etc., are used merely to distinguish different objects and do not indicate that the objects have the sameness or relationship. It should be understood that the directional descriptions "above," "below," "outside," and "inside" refer to the orientation under normal use conditions, while "left" and "right" refer to the left and right directions shown in the corresponding diagrams, which may or may not be the left and right directions under normal use conditions.

[0029] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. "A plurality of" means two or more.

[0030] One embodiment of this application provides an aerosol generating article 1, please refer to... Figure 1 The aerosol-generating product 1 includes a front plug section 11, a matrix section 12, and a functional section 13 arranged sequentially along a first direction.

[0031] It should be noted that the first direction refers to Figure 1 The direction indicated by the middle arrow.

[0032] The matrix segment 12 is used to be heated by the heating element 21 to generate an aerosol. For example, the matrix segment 12 releases an aerosol when heated.

[0033] The front plug section 11 is disposed at the distal lip end of the matrix section 12. The front plug section 11 and the functional section 13 are located at opposite ends of the matrix section 12 along the first direction. The front plug section 11 acts as a stop for the matrix section 12, effectively reducing the possibility of the matrix section 12 shrinking and deforming and detaching after heating. Furthermore, the front plug section 11 can adsorb aerosols that flow back during non-vacuuming processes, reducing the possibility of backflowing aerosols overflowing from the aerosol-generated product 1. Additionally, the front plug section 11 can absorb condensate formed in the matrix section 12, reducing the outflow of condensate from the aerosol-generated product 1.

[0034] The specific function of functional section 13 is not limited. For example, functional section 13 can play a supporting role, improving the structural strength of aerosol-generated product 1; it can play a cooling role, allowing airflow from the external environment to enter functional section 13 and mix with the aerosol during the suction process, thereby reducing the temperature of the aerosol.

[0035] The specific structure of functional segment 13 is not limited. For example, functional segment 13 can be composed of multiple structures that can achieve different functions.

[0036] The front plug section 11 is a one-piece structure. Understandably, the one-piece structure has better stability, which can improve the stability of the front plug section 11 in conjunction with the aerosol generating device 2, and improve the heating efficiency of the aerosol generating device 2 on the aerosol generating product 1. As a result, the matrix section 12 generates more aerosol, thereby improving the user's suction experience.

[0037] It should be noted that there are no restrictions on the specific processing method for the integrated structure, such as extrusion molding, die forming, roll forming, freeze forming, spray drying molding, gel forming, injection molding, die casting, and integrated molding of composite materials.

[0038] The aerosol generating product 1 provided in this application embodiment has a front plug section 11 as an integral structure. The integral structure has better stability, which allows the front plug section 11 to cooperate well with the aerosol generating device 2. This is beneficial to improving the heating efficiency of the aerosol generating device 2 on the aerosol generating product 1, improving the user's suction experience, and also improving the manufacturing efficiency of the aerosol generating product 1.

[0039] Please refer to Figure 12 One embodiment of this application provides an aerosol generation system, which includes an aerosol generation device 2 and an aerosol generation article 1 according to any embodiment.

[0040] The aerosol generating apparatus 2 has a receiving cavity 2a, in which at least a portion of the aerosol generating article 1 is contained. It is understood that the receiving cavity 2a provides space for the aerosol generating article 1, which may be entirely contained within the receiving cavity 2a, or partially contained within the receiving cavity 2a while the other part is located outside the receiving cavity 2a.

[0041] The aerosol generating device 2 provided in this application embodiment allows external gas entering the receiving cavity 2a to enter the aerosol generating product 1 through the front plug section 11, which can improve the suction resistance when the user inhales and improve the user's inhalation experience.

[0042] For example, the aerosol generating device 2 includes a housing 20, which can form the appearance of the aerosol generating device 2 and can also form a receiving cavity 2a. In addition, the housing 20 can also protect the internal components of the aerosol generating device 2.

[0043] The aerosol generating device 2 includes a heating element 21, which heats the matrix segment 12 housed in the receiving cavity 2a to generate an aerosol. It is understood that the heat generated by the heating element 21 can heat and atomize the matrix segment 12, thereby generating an aerosol that can be inhaled by a user or used in medicine, beauty, etc.

[0044] The heating element 21 can be heated in various ways. For example, heating methods include center heating and peripheral heating. Center heating refers to the heating element 21 being inserted into the aerosol-generating product 1 to bake and heat it from the inside out. Peripheral heating refers to the heating element 21 being positioned around the aerosol-generating product 1 to bake and heat it from the outside in. These heating methods can specifically include resistance heating, electromagnetic heating, infrared heating, microwave heating, laser heating, etc. It should be noted that, in this embodiment, the first direction does not specifically refer to the direction in which the outer contour of the aerosol-generating article 1 is longest. Specifically, the arrangement direction of the functional segment 13, the matrix segment 12, and the front plug segment 11 is consistent with the first direction; the direction in which the aerosol-generating article 1 is inserted into the aerosol generating device 2 and the direction in which the aerosol-generating article 1 is removed from the aerosol generating device 2 are both parallel to the first direction. The length of the aerosol-generating article 1 along the first direction can be longer, shorter, or the same as its length in other directions. For example, when the outer contour of the aerosol generating article 1 is cylindrical, the first direction is the axial direction of the aerosol generating article 1. It should be noted that even when the axial length of the aerosol generating article 1 is less than its diameter, the first direction of the aerosol generating article 1 is still the axial direction. As another example, when the outer contour of the aerosol generating article 1 is cuboid, the first direction is still the direction defined above, that is, the arrangement direction of the functional segment 13, the matrix segment 12 and the front plug segment 11, or the direction in which the receiving cavity 2a takes in and places the aerosol generating article 1. The first direction of the aerosol generating article 1 can be any of the length, width and height directions of the cuboid.

[0045] For example, the aerosol generating device 2 also includes a battery 22, which can provide power to the aerosol generating device 2.

[0046] It should be noted that the specific structure of the matrix segment 12 is not limited here. Exemplarily, in one embodiment, the matrix segment 12 may be made of the atomizing medium itself, such as a smoky flavoring medium. In other embodiments, the matrix segment 12 may also include a matrix and an atomizing medium loaded on the matrix. The matrix may be, for example, high-temperature resistant carbon fiber. Thus, by providing a matrix, the strength of the matrix segment 12 can be improved, and it can withstand a certain degree of high temperature without producing odor.

[0047] The specific composition of the matrix segment 12 is not limited here. For example, in one embodiment, the matrix segment 12 may include plant components, smoke-generating agent components, etc.

[0048] The function of the smoke-generating agent is to produce a large amount of vapor upon heating, thereby increasing the amount of smoke in the smoke-generating product. In one embodiment, the smoke-generating agent may include, for example, one or more combinations of: a monohydric alcohol (such as menthol); a polyhydric alcohol (such as propylene glycol, triethylene glycol, 1,3-butanediol, and glycerol); an ester of a polyhydric alcohol (such as glyceryl monoacetate, glyceryl diacetate, or glyceryl triacetate); a monocarboxylic acid; a polycarboxylic acid (such as lauric acid, myristic acid) or an aliphatic ester of a polycarboxylic acid (such as dimethyl dodecanoate, dimethyl tetradecanoate, erythritol, 1,3-butanediol, tetraethylene glycol, triethyl citrate, propylene carbonate, ethyl lauryl acetate, triacetin, meso-erythritol, a mixture of diacetins, diethyl caprylate, triethyl citrate, methyl benzoate, phenylacetic acid, ethyl vanillate, glyceryl tributate, and lauryl acetate).

[0049] For example, the weight of the smoke-generating agent component in the matrix segment 12 accounts for no less than 10% of the total weight of the matrix segment 12. This ensures that the aerosol generated by the matrix segment 12 has a reasonable amount of smoke.

[0050] For example, the aerosol generating article 1 further includes a coating layer covering the outer periphery of the functional segment 13, the matrix segment 12, and the foreplug segment 11. It is understood that the coating layer can connect the functional segment 13, the matrix segment 12, and the foreplug segment 11, thereby improving the overall stability of the aerosol generating article 1.

[0051] The material of the wrapping layer is not limited. For example, the wrapping layer includes, but is not limited to, one or more combinations of materials such as fiber paper, metal foil, metal foil composite fiber paper, polyethylene composite fiber paper, PE (polyethylene), and PBAT (butylene adipate-co-terephthalate).

[0052] In some embodiments, the front plug section 11 is an integral structure made of a powder mixture.

[0053] It should be noted that, in the embodiments of this application, powder mixture refers to a substance formed by mixing two or more powdered materials with different components.

[0054] It is understandable that by mixing powdered materials of different components and then molding them in one piece, the uniformity of the different components in the molded front plug section 11 can be improved, thus ensuring the structural stability of the front plug section 11.

[0055] It should be noted that during the preparation of the pre-plug section 11, the powder needs to be mixed with a solvent to form a slurry, which is then shaped and dried. The finished pre-plug section 11 may still contain a certain amount of solvent, or it may contain no solvent (the solvent has almost completely evaporated). The solvent can be water, VG (Vegetable Glycerin), or PG (Propylene Glycol). It should be noted that the specific materials of the powder mixture are not limited.

[0056] In some embodiments, the powder mixture includes magnetic powder. It should be noted that magnetic powder refers to a magnetic material in powder form. It is understood that the front plug section 11, made from the powder mixture including the magnetic powder, is magnetic. When the aerosol generating article 1 enters the receiving cavity 2a of the aerosol generating device 2, the magnetic front plug section 11 can cause a change in the magnetic field within the receiving cavity 2a, enabling the aerosol generating device 2 to quickly identify the aerosol generating article 1. This reduces the recognition delay or failure of the aerosol generating device 2 after the aerosol generating article 1 enters, facilitating "instant recognition" of the aerosol generating device 2 and improving the user experience.

[0057] The magnetic powder is selected from one or more of iron, cobalt, and nickel. It is understood that iron, cobalt, and nickel are all ferromagnetic materials with strong ferromagnetism, which makes them easy to magnetize and retain their magnetism. The magnetic powder composed of one or more of iron, cobalt, and nickel also has strong ferromagnetism, so as to ensure that the front plug section 11 made of the powder mixture including the magnetic powder is magnetic.

[0058] Of course, in the above-mentioned iron, cobalt, and nickel, iron refers to metals containing the element iron, which can be elemental iron and / or iron alloys. Cobalt refers to metals containing the element cobalt, which can be elemental cobalt and / or cobalt alloys. Nickel refers to metals containing the element iron, which can be elemental nickel and / or nickel alloys.

[0059] It should be noted that the composition of magnetic powder includes the following types: First, magnetic powder includes one of iron, cobalt and nickel, such as powders corresponding to elemental iron, iron alloy, elemental cobalt, cobalt alloy, elemental nickel and nickel alloy.

[0060] The second type of magnetic powder includes any two or three of iron, cobalt, and nickel. For example, it can be any two or a mixture of the three types of powder: elemental iron / iron alloy powder, elemental cobalt / cobalt alloy powder, elemental nickel / nickel alloy powder, or iron-cobalt-nickel alloy powder. It can also be at least one of the following: iron-cobalt alloy (e.g., Fe-50Co), iron-nickel alloy (e.g., Fe-36Ni), cobalt-nickel alloy (e.g., Co-35Ni-20Cr-10Mo), or iron-cobalt-nickel alloy (e.g., Al-Ni-Co-Fe).

[0061] In some embodiments, the permeability (hereinafter referred to as μ) of the front plug section 11 is 2.0 × 10⁻⁶. -5 H / m ~ 1.0 × 10 -3 H / m (Henry per meter, characterizing the ability of a material to be magnetized in an applied magnetic field), i.e., 2.0 × 10⁻⁶ -5 H / m≤μ≤1.0×10 -3 H / m. This makes the magnetic permeability μ of the front plug section 11 reasonable. When the aerosol generating product 1 enters the receiving cavity 2a of the aerosol generating device 2, the front plug section 11 can cause a significant change in the magnetic field within the receiving cavity 2a, which facilitates the aerosol generating device 2 to quickly identify the aerosol generating product 1.

[0062] In some embodiments, the powder mixture includes conductive powder. It should be noted that conductive powder refers to a conductive material in powder form. It is understood that the pre-plug section 11, made from the powder mixture including conductive powder, is conductive. The aerosol generating device 2 can use a detection circuit to detect the pre-plug section 11. By detecting changes in the electrical signal of the detection circuit, the aerosol generating device 2 can quickly identify the aerosol-generated product 1, which is beneficial for achieving "instant identification" of the aerosol generating device 2.

[0063] The conductive powder is selected from one or more of the following: gold, silver, copper, iron, cobalt, nickel, aluminum, tungsten, platinum, lead, germanium, TiO2, NiO, ZnO, ZnInS, CdS, and C3N4. It is understood that gold, silver, copper, iron, cobalt, nickel, aluminum, tungsten, platinum, and lead are metallic materials with strong conductivity. These metallic materials include elemental metals and / or their corresponding alloys. For example, gold refers to elemental gold and / or gold alloys.

[0064] Germanium, TiO2, NiO, ZnO, ZnInS, CdS, and C3N4 materials become conductive after processing and modification. For example, ZnO doped with aluminum has strong conductivity, NiO has strong conductivity after high-temperature treatment, and TiO2 has strong conductivity after oxygen-deficient treatment. This makes the conductive powder composed of the above materials conductive, so as to ensure that the front plug section 11 made of the powder mixture including the conductive powder is conductive.

[0065] In some embodiments, the resistivity (hereinafter referred to as ρ) of the fore-plug section 11 is 1.0 × 10⁻⁶. -4 Ω·m ~ 2.0×10 2 Ω·m (ohm-meter, characterizing the inherent property of a material to impede the flow of electric current), i.e., 1.0 × 10⁻⁶ -4 Ω·m≤ρ≤2.0×10 2 Ω·m. In this way, the resistivity ρ of the front plug section 11 is reasonable. After the aerosol generating product 1 is inserted into the receiving cavity 2a, the front plug section 11 can cause a significant change in the electrical signal of the detection circuit, so that the aerosol generating device 2 can quickly identify the aerosol generating product 1. For example, the fore-end section 11 includes one or more of the following materials: cellulose material, starch material, filler, gum material, and sugar material.

[0066] Cellulose materials include, but are not limited to, microcrystalline cellulose, methylcellulose, ethylcellulose, carboxymethylcellulose, etc.

[0067] Starch materials include, but are not limited to, amylose, amylopectin, and modified starch.

[0068] Fillers include, but are not limited to, diatomaceous earth, talc, light calcium carbonate, and calcium stearate carbonate.

[0069] Adhesive materials include, but are not limited to, xanthan gum, guar gum, and tamarind gum.

[0070] Carbohydrates include, but are not limited to, glucose, pullulan, and glucomannan.

[0071] For example, the pre-plug section 11 includes a fragrance material. It is understood that this allows the user to inhale aerosols containing the fragrance material, thereby enhancing the user's sensory experience.

[0072] Fragrance ingredients include, but are not limited to, mint essence, lemon essence, blueberry essence, watermelon essence, etc.

[0073] It should be noted that the fragrance material can be mixed into the powder mixture before the front plug section 11 is integrally molded, and molded together with the powder mixture.

[0074] For example, the mass of the fragrance material (hereinafter referred to as G1) accounts for 5% to 15% of the mass of the powder mixture (hereinafter referred to as G), that is, 5% ≤ G1 / G ≤ 15%. For example, G1 / G is 5%, 6%, 7%, 8%, 9%, 10%, 11%, 12%, 13%, 14%, or 15%. This ensures a reasonable proportion of fragrance material, resulting in a reasonable amount of fragrance material in the aerosol inhaled by the user, thus improving the user's inhalation experience.

[0075] It should be noted that the mass G of the powder mixture mentioned above does not include the mass G1 of the flavoring material.

[0076] It should be noted that the specific shape of the front plug section 11 is not limited.

[0077] In some embodiments, please refer to Figure 1 The front plug section 11 is cylindrical, and its diameter (hereinafter referred to as D) is 5mm (length unit, millimeter) to 8mm, that is, 5mm≤D≤8mm. For example, D is 5mm, 6mm, 7mm or 8mm. This makes the thickness of the front plug section 11 reasonable and easy to manufacture.

[0078] In some embodiments, the dimension of the front plug section 11 along the first direction (hereinafter referred to as H) is 3mm to 10mm, that is, 3mm≤H≤10mm. For example, H is 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, or 10mm. This makes the length of the front plug section 11 reasonable, which can ensure that the suction resistance of the aerosol generating article 1 is reasonable, and can also prevent the aerosol from flowing back at the front plug section 11 and affecting the suction experience.

[0079] It should be noted that the dimension of the front plug section 11 along the first direction is the distance between the two opposite ends of the front plug section 11 along the first direction, and also relative to the length dimension of the front plug section 11.

[0080] In some embodiments, the hardness (hereinafter referred to as HCI) of the front plug section 11 is not less than 90%, that is, HCI≥90%. This gives the front plug section 11 a certain structural strength, enabling it to maintain its shape during the cooperation with the aerosol generating device 2 and improving the stability of the aerosol generating product 1.

[0081] It should be noted that hardness refers to the indentation measured after applying a radial test force of 2.94N through the front plug section 11 of a certain diameter and holding it for 15 seconds, and is calculated using the following formula: HCI = (Da) ÷ D × 100%, where HCI is the hardness, D is the diameter of the sample before compression (in mm), and a is the indentation amount (in mm).

[0082] In some embodiments, please refer to Figures 2 to 5 The outer peripheral surface of the front plug section 11 is provided with at least one groove 11a. The groove 11a penetrates the end faces of the two opposite ends of the front plug section 11 along the first direction. External airflow can flow into the matrix section 12 through the groove 11a. The groove 11a can improve the air permeability of the front plug section 11.

[0083] The ratio of the total area of ​​at least one groove 11a on the outer periphery of the front plug section 11 (hereinafter referred to as S1) to the area of ​​the outer periphery of the front plug section 11 (hereinafter referred to as S) is 60% to 80%, that is, 60% ≤ S1 / S ≤ 80%. For example, S1 / S is 60%, 65%, 70%, 75%, or 80%, etc. It is understandable that the ratio of the sum of the surface areas of all grooves 11a to the outer periphery surface area of ​​the front plug section 11 is reasonable, so that the air permeability of the front plug section 11 is reasonable, that is, it can have reasonable suction resistance and can also ensure that it can block the backflow of aerosols generated by the user during the suction process.

[0084] It should be noted that the outer circumferential surface area of ​​the front plug section 11 refers to the diameter of the cross-section of the front plug section 11 multiplied by π (pi), and then multiplied by the dimension H of the front plug section 11 along the first direction.

[0085] It should be noted that the specific shape of the groove 11a is not limited.

[0086] For example, please refer to Figures 2 to 5 All grooves 11a include at least one straight groove 11a, and / or all grooves 11a include at least one spiral groove 11a.

[0087] The above technical solutions include the following: First, please refer to... Figures 2 to 3 All grooves 11a are straight grooves 11a; for the second type, please refer to... Figures 4 to 5 All grooves 11a are spiral grooves 11a; the third type is where some grooves 11a are straight grooves 11a and the other part of grooves 11a are spiral grooves 11a.

[0088] A straight groove 11a refers to a groove 11a that extends along a straight line. The straight groove 11a can be parallel to the first direction or it can be set at an angle to the first direction. A straight channel facilitates processing and manufacturing.

[0089] The spiral groove 11a refers to the groove 11a extending along the spiral line. The spiral channel can extend the flow path of the airflow.

[0090] In some embodiments, please refer to Figure 3 and Figure 5 The front plug section 11 is provided with at least one air passage 11b, which penetrates the end faces of the front plug section 11 at both ends along the first direction. The ratio of the total cross-sectional area of ​​the at least one air passage 11b (hereinafter referred to as S2) to the cross-sectional area of ​​the front plug section 11 (hereinafter referred to as S3) is 10% to 80%, that is, 10%≤S2 / S3≤80%. For example, S2 / S3 is 10%, 20%, 30%, 40%, 50%, 60%, 65%, 70%, 75% or 80%, etc.

[0091] Understandably, the airway 11b penetrating the end faces of the two opposite ends of the front plug section 11 along the first direction helps improve the air permeability of the front plug section 11, facilitating the flow of air from the external environment into the matrix section 12 to extract aerosols, thus facilitating suction for the user. The ratio of the total cross-sectional area S2 of the airway 11b to the cross-sectional area S3 of the front plug section 11 is reasonable, giving the airway 11b a reasonable cross-sectional area. This improves the air permeability of the front plug section 11 while also ensuring its structural strength.

[0092] It should be noted that the total cross-sectional area S2 of the airway 11b mentioned above refers to the sum of the areas enclosed by the outer contours of the largest cross-section of all airways 11b.

[0093] It should be noted that the specific type of airway 11b is not limited.

[0094] For example, all air passages 11b include at least one straight passage, and / or, all air passages 11b include at least one spiral passage that extends spirally inside the aerosol-generating article 1.

[0095] The above technical solutions include the following types: First, all airways 11b are straight channels; second, all airways 11b are spiral channels; third, some airways 11b are straight channels and others are spiral channels.

[0096] A straight channel refers to a channel that extends along a straight line. A straight channel can be parallel to the first direction or at an angle to it. Straight channels are easier to process and manufacture.

[0097] A spiral channel refers to a channel that extends along a spiral line. Spiral channels can extend the flow path of airflow.

[0098] It should be noted that the air passages 11b and grooves 11a in the front plug section 11 can be configured in the following ways: First, the front plug section 11 is provided with at least one air passage 11b, and the outer peripheral surface of the front plug section 11 is not provided with grooves 11a; Second, the outer peripheral surface of the front plug section 11 is provided with at least one groove 11a, and the front plug section 11 is not provided with air passages 11b; Third, the outer peripheral surface of the front plug section 11 is provided with at least one groove 11a, and the front plug section 11 is also provided with air passages 11b.

[0099] In some embodiments, please refer to Figures 6 to 9The front plug section 11 is provided with a receiving hole 11c, which penetrates the end faces of opposite ends of the front plug section 11 along the first direction, for the heating element 21 of the aerosol generating device 2 to pass through. It is understood that the receiving hole 11c has high stability, and the receiving hole 11c is not easily deformed when the heating element passes through it, thereby improving the compatibility between the aerosol generating product 1 and the aerosol generating device 2.

[0100] In an embodiment where the heating element 21 of the aerosol generating device 2 adopts a central heating method, the heating element 21 can enter the matrix section 12 through the receiving hole 11c to heat the matrix section 12, thereby improving the heating effect of the heating element on the matrix section 12.

[0101] For example, the ratio of the cross-sectional area of ​​the receiving hole 11c (hereinafter referred to as S4) to the cross-sectional area S3 of the front plug section 11 is 10% to 40%, that is, 10% ≤ S4 / S3 ≤ 40%. For example, S2 / S3 is 10%, 20%, 30%, or 40%, etc. In this way, the ratio of the cross-sectional area S4 of the receiving hole 11c to the cross-sectional area S3 of the front plug section 11 is reasonable, so that the receiving hole 11c can allow the heating element 21 to pass through while ensuring the structural strength of the front plug section 11.

[0102] It should be noted that the specific shape of the cross-section of the receiving hole 11c is not limited.

[0103] For example, please refer to Figures 6 to 9 The cross-sectional shape of the receiving hole 11c is circular, triangular, rectangular, or square. It can be understood that the cross-sectional shape of the receiving hole 11c is adapted to the shape of the heating element 21, so that the heating element 21 can pass through the receiving hole 11c.

[0104] In some embodiments, please refer to Figure 10 and Figure 11 The ratio of the total cross-sectional area S2 of at least one airway 11b to the cross-sectional area S4 of the receiving hole 11c is 1 to 2, i.e., 1.0 ≤ S2 / S4 ≤ 2.0. For example, S2 / S3 is 1.0, 1.5, or 2.0, etc. It is understood that making the ratio of the total cross-sectional area S2 of all airways 11b to the cross-sectional area S4 of the receiving hole 11c reasonable can ensure the structural strength of the front plug section 11 and increase the air permeability of the front plug section 11.

[0105] In the embodiment with receiving hole 11c, please refer to Figure 10 and Figure 11The front plug section 11 is provided with multiple air channels 11b, which are arranged around the receiving hole 11c. In this way, when the heating element 21 is inserted through the receiving hole 11c to generate the aerosol product 1, the front plug section 11 still has good air permeability to ensure that the external airflow can enter the matrix section 12 to extract the aerosol and to ensure the user's suction experience.

[0106] It should be noted that the cross-sectional area of ​​each airway 11b is not limited.

[0107] In some embodiments, please refer to Figure 10 Each airway 11b has the same cross-sectional area, and all airways bb are evenly arranged along the circumference of the receiving hole 11c. It can be understood that the uniform distribution of each airway 11b can improve the suction resistance consistency of the front plug section 11, thereby improving the user's suction experience.

[0108] In other embodiments, please refer to Figure 11 All airways 11b are divided into at least two groups, and each airway 11b in each group is arranged along the same virtual circle, wherein the receiving hole 11c is located at the center of the virtual circle, and the cross-sectional areas of the airways 11b in at least the two groups are different.

[0109] Understandably, the two sets of airways 11b with different cross-sectional areas allow for different airflow rates, resulting in different suction resistances. This creates a sense of layering in the suction resistance of the front plug section 11, allowing the user to experience a sense of layering during inhalation. Furthermore, the arrangement of each airway 11b along the same virtual circle ensures good consistency in the suction resistance of the front plug section 11, allowing the user to experience both layering and an unbalanced suction resistance during inhalation, thus improving the user's inhalation experience.

[0110] It should be noted that the virtual circle is not an actual circle. Each airway 11b in each group is arranged along the same virtual circle. The accommodating hole 11c being located at the center of the virtual circle means that the arrangement of each airway 11b in the group is roughly circular, and the accommodating hole 11c is located at the center of the circle.

[0111] It should be noted that micropores are formed in the aforementioned pre-plug section 11, matrix section 12 and functional section 13, and the micropores are interconnected to form micro-air channels.

[0112] The aforementioned air passage 11b is a pore in a macroscopic sense, while the micropore is a pore in a microscopic sense. The shape and size of the micropore are determined by the manufacturing process, rather than being machined using tools or molds. The cross-sectional area of ​​the air passage 11b is much larger than that of the micropore; for example, the diameter of the air passage 11b is at least 20 times that of the micropore.

[0113] In some embodiments, the front plug section 11 may have only micropores and no air passage 11b.

[0114] In the description of this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," 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 different embodiments or examples described in this application, as well as features of different embodiments or examples.

[0115] 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 should be included within the scope of protection of this application.

Claims

1. An aerosol-generating product, characterized in that, include: A fore plug section, a matrix section, and a functional section are arranged sequentially along a first direction, wherein the matrix section is used to be heated by a heating element to generate an aerosol; The pre-plug segment is disposed at the distal lip end of the matrix segment; The front plug section is a one-piece structure.

2. The aerosol-generating product according to claim 1, characterized in that, The front plug section is a one-piece structure made of a powder mixture.

3. The aerosol-generating product according to claim 2, characterized in that, The powder mixture includes magnetic powder selected from one or more of iron, cobalt, and nickel; and / or, the powder mixture includes conductive powder selected from one or more of gold, silver, copper, iron, cobalt, nickel, aluminum, tungsten, platinum, lead, germanium, TiO2, NiO, ZnO, ZnInS, CdS, and C3N4.

4. The aerosol-generating product according to claim 2, characterized in that, The powder mixture includes magnetic powder, and the permeability of the fore-plug section is 2.0 × 10⁻⁶. -5 H / m ~ 1.0 × 10 -3 H / m.

5. The aerosol-generating product according to claim 2, characterized in that, The powder mixture includes conductive powder, and the resistivity of the fore-plug section is 1.0 × 10⁻⁶. -4 Ω·m ~ 2.0×10 2 Ω·m.

6. The aerosol-generating product according to claim 1, characterized in that, The fore-end section comprises one or more of the following materials: cellulose material, starch material, filler, gum material, and sugar material.

7. The aerosol-generating article according to any one of claims 1 to 6, characterized in that, The front plug section is cylindrical, and the diameter of the front plug section is 5mm~8mm; And / or, the size of the front plug section along the first direction is 3mm to 10mm.

8. The aerosol-generating article according to any one of claims 1 to 6, characterized in that, The hardness of the fore-end section is not less than 90%.

9. The aerosol-generating article according to any one of claims 1 to 6, characterized in that, The outer peripheral surface of the front plug section is provided with at least one groove, the groove penetrates the end faces of the opposite ends of the front plug section along the first direction, and the ratio of the total area of ​​the at least one groove on the outer peripheral surface of the front plug section to the area of ​​the outer peripheral surface of the front plug section is 60% to 80%.

10. The aerosol-generating article according to any one of claims 1 to 6, characterized in that, The outer peripheral surface of the front plug section is provided with at least one groove, the groove penetrating the end faces of the opposite ends of the front plug section along the first direction; The at least one groove includes at least one straight groove, and / or the at least one groove includes at least one spiral groove.

11. The aerosol-generating article according to any one of claims 1 to 9, characterized in that, The front plug section is provided with at least one air passage, which penetrates the end faces of the front plug section at opposite ends along the first direction, and the ratio of the total cross-sectional area of ​​the at least one air passage to the cross-sectional area of ​​the front plug section is 10% to 80%.

12. The aerosol-generating article according to any one of claims 1 to 6, characterized in that, The front plug section is provided with a receiving hole, which penetrates the end faces of the opposite ends of the front plug section along the first direction, for the heating element of the aerosol generating device to pass through. The ratio of the cross-sectional area of ​​the receiving hole to the cross-sectional area of ​​the front plug section is 10% to 40%.

13. The aerosol-generating article according to any one of claims 1 to 6, characterized in that, The front plug section is provided with a receiving hole, which penetrates the end faces of the opposite ends of the front plug section along the first direction, for the heating element of the aerosol generating device to pass through. The cross-sectional shape of the receiving hole is circular, triangular, rectangular, or square.

14. The aerosol-generating article according to any one of claims 1 to 6, characterized in that, The front plug section is provided with at least one air passage, which penetrates the end faces of the front plug section at opposite ends along the first direction. The front plug section is provided with a receiving hole, which penetrates the end faces of the opposite ends of the front plug section along the first direction, for the heating element of the aerosol generating device to pass through. The ratio of the total cross-sectional area of ​​the at least one airway to the cross-sectional area of ​​the receiving hole is 1 to 2.

15. The aerosol-generating article according to any one of claims 1 to 6, characterized in that, The front plug section is provided with a receiving hole that extends through both ends of the front plug section along the first direction, for the heating element of the aerosol generating device to pass through; the front plug section is provided with multiple air passages that are arranged around the receiving hole.

16. The aerosol-generating article according to claim 15, characterized in that, Each of the air passages has the same cross-sectional area, and the plurality of air passages are uniformly arranged around the circumference of the receiving hole; or, the plurality of air passages are divided into at least two groups, each air passage in each group is arranged along the same virtual circle, wherein the receiving hole is located at the center of the virtual circle, and the cross-sectional areas of the air passages in at least two groups are different.

17. An aerosol generation system, characterized in that, include: An aerosol generating device having a receiving cavity; And the aerosol-generating articles according to any one of claims 1-16; At least a portion of the aerosol-generated article is contained within the receiving cavity. The aerosol generating device includes a heating element for heating the matrix section contained in the receiving cavity to generate aerosol.

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