Aerosol generating substrate and aerosol generating product
By designing an aerosol-generating matrix with a cross-sectional area changing in the direction, the problem of excessive aerosol temperature in the prior art is solved, and the effect of reducing aerosol temperature, improving user experience, and improving aerosol density and richness is achieved.
Patent Information
- Application Number
- CN202311309987.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-10-10
- Publication Date
- 2025-04-11
AI Technical Summary
The temperature of the aerosol generated by existing aerosol products is high during heating, which makes it easy for users to have "hot mouths" when using it, affecting the user experience.
An aerosol-generating matrix is designed that extends in the first direction and changes in the cross-sectional area, including a variable diameter structure and an isometric structure with a gradually decreasing cross-sectional area, through which the temperature of the aerosol is reduced.
By reducing the temperature of the aerosol, the user experience is improved, the density and release of the aerosol is increased, and the aerosol is rich and stable.
Smart Images
Figure CN119791333A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of smoking products, and in particular to an aerosol generating substrate and an aerosol generating product. Background Art
[0002] Aerosol generating products generally generate aerosols by heating without burning. Specifically, aerosol generating products are heated by an external heat source to a degree just sufficient to emit a fragrance. Aerosol generating products do not burn, but instead load an atomizer and release the atomizer by heating when in use to form smoke.
[0003] The heating temperature of aerosol-generating products during the heating process is relatively high, so the temperature of the generated aerosol is also relatively high, which can easily cause "burning of the mouth" during use, affecting the user's experience. Summary of the invention
[0004] In view of this, embodiments of the present application hope to provide an aerosol-generating substrate and an aerosol-generating product that can reduce the temperature of the aerosol.
[0005] To achieve the above-mentioned purpose, a first aspect of an embodiment of the present application provides an aerosol generating substrate, which is an integrated structure extending along a first direction, and along the first direction, the cross-sectional area of the aerosol generating substrate at at least one position is different from the cross-sectional area at other positions.
[0006] In one embodiment, the aerosol generating substrate has a first end and a second end along a first direction, and along the first direction, an end surface area of the first end is a minimum cross-sectional area of the aerosol generating substrate.
[0007] In one embodiment, the cross-sectional area of at least a portion of the aerosol generating substrate gradually decreases along the direction from the second end to the first end.
[0008] In one embodiment, the aerosol generating substrate comprises a first segment and a second segment arranged along the first direction, and a cross-sectional area of the first segment is different from a cross-sectional area of the second segment.
[0009] In one embodiment, at least one of the first section and the second section is an equal-diameter structure.
[0010] In one embodiment, at least one of the first segment and the second segment is plural in number, and the first segment and the second segment are alternately arranged along the first direction.
[0011] In one embodiment, the aerosol generating substrate comprises a first segment and a second segment arranged along the first direction;
[0012] The first section is a variable diameter structure whose cross-sectional area gradually decreases along a first direction, the second section is a constant diameter structure, and the minimum value of the cross-sectional area of the first section is greater than the cross-sectional area of the second section; or,
[0013] The first section is a constant diameter structure, the second section is a variable diameter structure with a cross-sectional area gradually decreasing along a first direction, and the cross-sectional area of the first section is greater than the maximum value of the cross-sectional area of the second section.
[0014] In one embodiment, the aerosol generating substrate comprises a first segment and a second segment arranged along the first direction;
[0015] The cross-sectional area of the first segment and the cross-sectional area of the second segment both gradually decrease along the first direction, and the minimum value of the cross-sectional area of the first segment is greater than the maximum value of the cross-sectional area of the second segment.
[0016] In one embodiment, the end face of the aerosol generating substrate is circular, elliptical, racetrack-shaped, polygonal, oval or fan-shaped.
[0017] In one embodiment, the aerosol generating substrate has a first end and a second end along a first direction, and when projected onto a plane perpendicular to the first direction, the symmetry center of the end surface of the first end coincides with the symmetry center of the end surface of the second end.
[0018] In one embodiment, the aerosol generating substrate has a first end and a second end along the first direction, the end surface shape of the first end is consistent with the end surface shape of the second end, and the end surface area of the first end is smaller than the end surface area of the second end.
[0019] In one embodiment, the aerosol generating substrate is a rotating body structure.
[0020] In one embodiment, the aerosol generating substrate has a first end and a second end along the first direction, the end surface shape of the first end is inconsistent with the end surface shape of the second end, and the outer contour of the aerosol generating substrate changes uniformly at least along the first direction.
[0021] In one embodiment, the aerosol generating substrate has a first end and a second end along a first direction, and when projected onto a plane perpendicular to the first direction, a symmetry center of an end surface of the first end is misaligned with a symmetry center of an end surface of the second end.
[0022] In one embodiment, the aerosol generating substrate has a first end and a second end along a first direction, and the longest diameter of the end surface of the first end is 4 mm to 6 mm.
[0023] In one embodiment, the longest diameter of the end surface of the second end is 6 mm-10 mm.
[0024] In one embodiment, the ratio of the end surface area of the first end to the end surface area of the second end is 0.4-0.8.
[0025] In one embodiment, the longest diameter of the end surface of the first end is 4.5 mm-5 mm.
[0026] In one embodiment, the longest diameter of the end surface of the second end is 7 mm-8.6 mm.
[0027] In one embodiment, the ratio of the end surface area of the first end to the end surface area of the second end is 0.6-0.7.
[0028] In one embodiment, the aerosol generating substrate has at least one airway hole inside, and the airway hole passes through at least one end of the aerosol generating substrate along the first direction.
[0029] In one embodiment, on a plane perpendicular to the first direction, the cross-sectional shape of the aerosol generating substrate and / or the airway hole is circular, elliptical, racetrack-shaped, polygonal, oval or fan-shaped.
[0030] A second aspect of an embodiment of the present application provides an aerosol generating article, comprising:
[0031] The aerosol-generating substrate described above;
[0032] A functional segment disposed at one end of the aerosol generating substrate along the first direction, the functional segment at least comprising a filtering segment for filtering aerosol;
[0033] A wrapping layer wraps around the functional segment and the outer peripheral side of the aerosol generating substrate.
[0034] In one embodiment, the circumferential side wall of at least a portion of the aerosol generating substrate is spaced apart from the wrapping layer and defines a spacing space, and the aerosol generating article further includes a filling member disposed in the spacing space.
[0035] In one embodiment, the filling piece includes a fragrance-carrying material and / or a cooling material; or, the filling piece is a hollow paper tube.
[0036] In one embodiment, the filling piece and the functional section are an integrated structure.
[0037] The embodiment of the present application provides an aerosol generating substrate, which is an integrated structure extending along a first direction, and along the first direction, the cross-sectional area of the aerosol generating substrate at at least one position is different from the cross-sectional area at other positions, that is, the aerosol generating substrate will have a relatively large cross-sectional area and a relatively small cross-sectional area. The gap between the relatively large cross-sectional area and the wrapping layer of the aerosol generating product is small or there is no gap, and the gap between the relatively small cross-sectional area and the wrapping layer of the aerosol generating product is large. In this way, when in use, the negative pressure generated at the large gap is small, that is, the flow rate of the aerosol in the relatively small cross-sectional area is slow. At the same time, since the flow rate of the aerosol in the relatively small cross-sectional area is slow, the contact time with the aerosol generating product is relatively long, which can help reduce the temperature of the aerosol. In addition, the accumulation of aerosol in the relatively small cross-sectional area can be increased, the aerosol density is increased, and the clumping property is enhanced, which can be regarded as an increase in the amount of aerosol released, improving the use experience. Furthermore, since there is a certain gap between the area with relatively small cross-sectional area and the wrapping layer of the aerosol generating product, the heating element can heat the aerosol generating matrix through heat conduction, heat convection, and heat radiation, thereby improving energy utilization efficiency, increasing aerosol extraction efficiency, and improving the richness of the aerosol. BRIEF DESCRIPTION OF THE DRAWINGS
[0038] Figure 1 A cross-sectional view of an aerosol generating article according to some embodiments of the present application;
[0039] Figure 2 A cross-sectional view of an aerosol generating article according to some embodiments of the present application;
[0040] Figure 3 A schematic diagram of the structure of an aerosol generating substrate according to some embodiments of the present application;
[0041] Figure 4 A schematic diagram of the structure of an aerosol generating substrate according to some embodiments of the present application;
[0042] Figure 5 A schematic diagram of the structure of an aerosol generating substrate according to some embodiments of the present application;
[0043] Figure 6 A schematic diagram of the structure of an aerosol generating substrate according to some embodiments of the present application;
[0044] Figure 7 A schematic diagram of the structure of an aerosol generating substrate according to some embodiments of the present application;
[0045] Figure 8 A schematic diagram of the structure of an aerosol generating substrate according to some embodiments of the present application;
[0046] Fig. 9 A schematic diagram of the structure of an aerosol generating substrate according to some embodiments of the present application;
[0047] Fig.10 A schematic diagram of the structure of an aerosol generating substrate according to some embodiments of the present application;
[0048] Fig.11 A schematic diagram of the structure of an aerosol generating substrate according to some embodiments of the present application;
[0049] Fig.12 Schematic diagram of the structure of the aerosol generating substrate according to some embodiments of the present application.
[0050] Description of Reference Numerals
[0051] 10. Aerosol generating matrix; 10a. Airway hole; 10b. First end; 10c. Second end; 10d. First section; 10e. Second section; 10n. Through hole; 20. Functional section; 21. Cooling section; 22. Filtering section; 30. Filling member; 40. Wrapping layer; 100. Aerosol generating product; 100a. Interval space. DETAILED DESCRIPTION
[0052] In the description of this application, the "first direction" orientation or position relationship is based on the attached Figure 1 and Figure 2 Regarding the orientation or positional relationship shown, it should be understood that these orientation terms are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0053] The present application embodiment provides an aerosol generating product, please refer to Figures 1 to 12 The aerosol-generating article 100 comprises an aerosol-generating substrate 10 , a functional segment 20 and a wrapping layer 40 .
[0054] The functional segment 20 is disposed at one end of the aerosol generating substrate 10 along the first direction, and the functional segment 20 at least includes a filtering segment 22 for filtering aerosol.
[0055] The functional segment 20 is arranged at one end of the aerosol generating substrate 10 along the first direction, that is, the aerosol generating substrate 10 and the functional segment 20 are respectively located at the two ends of the aerosol generating product 100, wherein the aerosol generating substrate 10 is the far lip end of the aerosol generating product 100, and the functional segment 20 is the near lip end of the aerosol generating product 100.
[0056] The proximal lip end refers to the end of the aerosol generating article 100 that is close to the user when the user uses the aerosol generating article 100 , and the distal lip end refers to the end of the aerosol generating article 100 that is far away from the user when the user uses the aerosol generating article 100 .
[0057] The functional section 20 comprises at least a filter section 22 for filtering aerosols.
[0058] It should be noted that the filter section 22 is used to filter the aerosol. It is understandable that since the aerosol flows through the filter section 22, the filter section 22 also has the function of further cooling the aerosol.
[0059] The functional section 20 may further include a cooling section 21 which can be used to cool the aerosol.
[0060] The cooling section 21 may be disposed between the aerosol generating substrate 10 and the filtering section 22 .
[0061] Of course, the functional segment 20 may also have the functions of supporting and / or filtering and / or adjusting the suction resistance.
[0062] The aerosol-generating article 100 relies on the aerosol-generating substrate 10 to generate an aerosol, and the functional segment 20 is not used to generate an aerosol.
[0063] The wrapping layer 40 wraps around the outer peripheral side of the functional segment 20 and the aerosol generating substrate 10. The wrapping layer 40 provides installation space and protection for the aerosol generating substrate 10 and the functional segment 20, reduces the probability of damage to the aerosol generating substrate 10 and the functional segment 20, and the heat generated by the aerosol generating substrate 10 when heated will not be directly transferred to the user, thereby increasing the reliability of the aerosol generating article 100.
[0064] Among them, the wrapping layer 40 wrapped around the outer peripheral side of the aerosol generating matrix 10 and the functional segment 20 can be the wrapping layer 40 wrapped around the entire outer peripheral side of the aerosol generating matrix 10 and the functional segment 20, or the wrapping layer 40 wrapped around part of the outer peripheral side of the aerosol generating matrix 10 and the functional segment 20.
[0065] It is understandable that the material of the wrapping layer 40 has a certain structural strength to reduce the probability of deformation of the aerosol generating article 100 due to airflow pressure during use.
[0066] The specific material of the wrapping layer 40 is not limited, such as one or more combinations of fiber paper, metal foil, metal foil composite fiber paper, PE (Polyethylene), polyethylene composite fiber paper, PBAT (Poly (butyleneadipate-co-terephthalate, poly (butylene adipate-co-terephthalate)) and the like.
[0067] It should be noted that, when the wrapping layer 40 wraps the entire outer circumference of the functional segment 20, the user can directly hold the wrapping layer 40 in the mouth to inhale the aerosol; when the wrapping layer 40 wraps part of the outer circumference of the functional segment 20, the user can directly hold the part of the functional segment 20 extending beyond the wrapping layer 40 in the mouth to inhale the aerosol. Of course, the user can also provide a nozzle outside the functional segment 20 to inhale the aerosol through the nozzle.
[0068] It should be noted that the aerosol generating product 100 of the embodiment of the present application can be used for inhalation by ignition or by heating without burning. In the embodiment of the present application, the aerosol generating product 100 is used for inhalation by heating without burning as an example.
[0069] The aerosol generating article 100 is used in conjunction with an aerosol generating device having a heating element. Specifically, the heating element heats and atomizes the aerosol generating substrate 10 to generate an aerosol for users to inhale or for use in medicine, beauty, etc.
[0070] There are many heating methods for the heating element. Exemplarily, the heating methods include central heating and peripheral heating. The central heating method refers to the heating element being inserted into the interior of the aerosol generating substrate 10 to bake and heat the aerosol generating substrate 10 from the inside to the outside. The peripheral heating method refers to the heating element being arranged at the periphery of the aerosol generating substrate 10 to bake and heat the aerosol generating substrate 10 from the outside to the inside. These heating methods may specifically be resistance heating, electromagnetic heating, infrared heating, microwave heating, laser heating, and the like.
[0071] The present application embodiment provides an aerosol generating matrix, please refer to Figures 1 to 12 The aerosol generating substrate 10 is an integrated structure extending along a first direction. In addition, along the first direction, the cross-sectional area of at least one position of the aerosol generating substrate 10 is different from the cross-sectional area of other positions.
[0072] The cross-sectional area at at least one position of the aerosol generating substrate 10 is different from the cross-sectional areas at other positions, which means that the aerosol generating substrate 10 is a variable cross-sectional structure with a changing cross-sectional area, rather than a uniform cross-sectional structure with the same cross-sectional area at any position. The position where the cross-sectional area of the aerosol generating substrate 10 changes may be any position of the aerosol generating substrate 10 along the first direction.
[0073] The cross-sectional area of the aerosol generating substrate 10 may be larger at at least one position than at other positions, or may be smaller at at least one position than at other positions, as long as the cross-sectional area of the aerosol generating substrate 10 varies.
[0074] The cross-sectional area at at least one position of the aerosol generating substrate 10 is different from the cross-sectional area at other positions, that is, the aerosol generating substrate 10 may have regions with relatively large cross-sectional areas and regions with relatively small cross-sectional areas. The gap between the regions with relatively large cross-sectional areas and the wrapping layer 40 of the aerosol generating product 100 is small or there is no gap, and the gap between the regions with relatively small cross-sectional areas and the wrapping layer 40 of the aerosol generating product 100 is large.
[0075] The cross-sectional area of the aerosol-generating substrate 10 refers to the area of a cross section of the aerosol-generating substrate 10 cut along a plane perpendicular to the first direction of the aerosol-generating substrate 10 .
[0076] In the related art, the aerosol generating matrix is generally set to have a constant cross-section along the axial direction. However, when the aerosol with a higher temperature flows through the aerosol generating matrix with a constant cross-section, the flow rate of the aerosol is basically constant. Therefore, the cooling effect of the aerosol is poor.
[0077] The embodiment of the present application provides an aerosol generating substrate, wherein the aerosol generating substrate 10 is an integrated structure extending along a first direction, and along the first direction, the cross-sectional area of the aerosol generating substrate 10 at least at one position is different from the cross-sectional area at other positions, that is, the aerosol generating substrate 10 will have a relatively large cross-sectional area and a relatively small cross-sectional area. The gap between the relatively large cross-sectional area and the wrapping layer 40 of the aerosol generating product 100 is small or there is no gap, and the gap between the relatively small cross-sectional area and the wrapping layer 40 of the aerosol generating product 100 is large. In this way, when in use, the negative pressure generated at the large gap is small, that is, the flow rate of the aerosol in the relatively small cross-sectional area is slow. At the same time, since the flow rate of the aerosol in the relatively small cross-sectional area is slow, the contact time with the aerosol generating product 100 is relatively long, which can help reduce the temperature of the aerosol. In addition, the accumulation of aerosol in the relatively small cross-sectional area can be increased, the aerosol density is increased, and the clumping property is enhanced, which can be regarded as an increase in the amount of aerosol released, and an improvement in the use experience. Furthermore, since there is a certain gap between the region with relatively small cross-sectional area and the wrapping layer 40 of the aerosol generating product 100, the heating element can heat the aerosol generating matrix 10 by heating methods such as heat conduction, heat convection, and heat radiation, thereby improving energy utilization efficiency, increasing aerosol extraction efficiency, and improving the richness of the aerosol.
[0078] In the embodiment of the present application, the first direction does not specifically refer to the direction in which the outer contour of the aerosol-generating substrate 10 is the longest. Specifically, the direction in which the aerosol-generating article 100 is inserted into the storage bin and the direction in which the aerosol-generating article 100 is taken out of the storage bin are both parallel to the first direction. The length of the aerosol-generating substrate 10 along the first direction may be longer, shorter, or the same as the length in other directions.
[0079] For example, when the appearance of the aerosol generating substrate 10 is cylindrical, the first direction is the axial direction of the aerosol generating substrate 10. It should be noted that even when the axial length of the aerosol generating substrate 10 is smaller than its diameter, the first direction of the aerosol generating substrate 10 is still the axial direction. For another example, when the appearance of the aerosol generating substrate 10 is a rectangular parallelepiped, the first direction is still the direction defined above, that is, the direction in which the aerosol generating product 100 is taken out of the containing chamber. The first direction of the aerosol generating substrate 10 can be any direction of the length, width, and height of the rectangular parallelepiped.
[0080] In the related art, the smoking materials of smoking products are, for example, granular, shredded tobacco, thin sheets, etc., which are formed by integral filling, rolling or gathering. When shredded tobacco smoking products are matched with a central heat source, the central material of the smoking products tends to move upward, resulting in "shred blocking". Granular smoking products are prone to poor uniformity of filling particle shape during production and processing, and the seals are prone to fall off, moisture absorption, and sticking and agglomeration with utensils during use.
[0081] The aerosol generating matrix provided in the embodiment of the present application is an integrated structure, for example, an integrated structure can be formed by extrusion, die casting or injection molding to improve the uniformity of the density of the aerosol generating matrix 10, and improve the stability of aerosol release and suction. In addition, the mass of the aerosol generating matrix 10 with an integrated structure is relatively uniform. When the heating element heats the aerosol generating matrix 10, it will not squeeze the structure around the aerosol generating matrix 10, so that the aerosol generating matrix 10 maintains a relatively uniform matrix density. Furthermore, the aerosol generating matrix 10 with an integrated structure is not easy to stick to the aerosol generating device, agglomerate, etc.
[0082] The specific components of the aerosol generating matrix 10 are not limited herein. For example, in one embodiment, the aerosol generating matrix 10 may include plant components, auxiliary components, smoke generating agent components, adhesive components, and flavor components.
[0083] The plant component is used to generate an aerosol when heated. The auxiliary component is used to provide a skeleton support for the plant component. The smoke-generating agent component is used to generate smoke when heated. The adhesive component is used to bond the various raw material components. The flavor component is used to provide a characteristic aroma. In this way, the plant component and the smoke-generating agent component can ensure the amount of aerosol generated, while the flavor component can enhance the release of aroma during the inhalation process and enhance the user experience. The auxiliary component can not only improve the fluidity of the mixed material, but also make the aerosol generating matrix 10 porous to facilitate the extraction and flow of the aerosol. The adhesive component ensures that the plant component and the auxiliary component etc. constitute a stable mixture to avoid a loose structure.
[0084] Exemplarily, the plant component can be one or more combinations of powders formed after crushing tobacco raw materials, tobacco leaf fragments, tobacco stems, tobacco dust, and flavor plants. Plant components are the core source of flavor. Endogenous substances in plant components can produce physiological satisfaction for users. Endogenous substances such as alkaloids enter the human blood and promote the pituitary gland to produce dopamine, thereby obtaining physiological satisfaction.
[0085] Exemplarily, the auxiliary agent component can be one or more combinations of inorganic fillers, lubricants, and emulsifiers. Among them, the inorganic filler includes one or more combinations of heavy calcium carbonate, light calcium carbonate, zeolite, attapulgite, talcum powder, and diatomaceous earth. The inorganic filler can provide a skeleton support for the plant component, and the inorganic filler also has micropores, which can increase the porosity of the aerosol generating matrix 10, thereby increasing the aerosol release rate. The lubricant includes one or more combinations of candelilla wax, carnauba wax, shellac, sunflower wax, rice bran, beeswax, stearic acid, and palmitic acid. The lubricant can increase the fluidity of the plant component powder, reduce the friction between the plant component powders, make the overall density of the plant component powder distribution more uniform, and can also reduce the pressure required for the extrusion molding process, and reduce the wear of the die. The emulsifier includes one or more combinations of polyglycerol fatty acid esters, Tween-80, and polyvinyl alcohol. The emulsifier can slow down the loss of flavor substances during storage to a certain extent, increase the stability of flavor substances, and improve the sensory quality of the product.
[0086] Exemplarily, the smoke-generating agent component may include: a monohydric alcohol (such as menthol); a polyhydric alcohol (such as propylene glycol, glycerol, triethylene glycol, 1,3-butylene glycol and tetraethylene glycol); an ester of a polyhydric alcohol (such as triacetin, triethyl citrate, a mixture of diacetin esters, triethyl citrate, benzyl benzoate, glyceryl tributyrate); a monocarboxylic acid; a dicarboxylic acid; a polycarboxylic acid (such as lauric acid, myristic acid) or an aliphatic ester of a polycarboxylic acid (such as dimethyl dodecanedioate, dimethyl tetradecanedioate, erythritol, 1,3-butylene glycol, tetraethylene glycol, triethyl citrate, propylene carbonate, ethyl laurate, Triactin, meso-erythritol, a mixture of diacetin esters, diethyl suberate, triethyl citrate, benzyl benzoate, benzyl phenylacetate, ethyl vanillate, glyceryl tributyrate, lauryl acetate) in one or more combinations.
[0087] Exemplarily, the adhesive component is in close contact with the interface of the component raw materials by wetting, generating intermolecular attraction, thereby playing a role in bonding the component raw materials, such as powders, liquids, etc. The adhesive component can be a natural plant extract, a non-ionized modified viscous polysaccharide, including one or more combinations of tamarind polysaccharides, guar gum, and modified cellulose (such as carboxymethyl cellulose). The adhesive is used to bond the particles together, which is not easy to loosen. In addition, it improves the water resistance of the aerosol generating matrix 10 and is harmless to the human body.
[0088] Exemplarily, the flavor component is used to provide a characteristic aroma, such as hay aroma, roasted sweet aroma, solid or liquid substances of nicotine. The flavor component may include one or more combinations of tobacco or other plants, flavor plant extracts, extracts, essential oils, and absolute oils; the flavor component may include monomeric flavor substances, such as one or more combinations of megastigmatriene, neophytadiene, geraniol, nerol, etc.
[0089] In some embodiments, see Figures 3 to 9 The aerosol generating substrate 10 has at least one air passage hole 10a inside. The air passage hole 10a passes through at least one end of the aerosol generating substrate 10 along the first direction.
[0090] The aerosol-generating matrix 10 has at least one air passage hole 10 a therein. The aerosol-generating matrix 10 may have one air passage hole 10 a therein, or may have a plurality of air passage holes 10 a therein.
[0091] It should be noted that the “multiple” mentioned in the embodiments of the present application refers to a number of two or more.
[0092] In some embodiments, the airway holes 10a pass through the same end of the aerosol generating substrate 10 along the first direction, and the other end is closed.
[0093] In other embodiments, a portion of the airway holes 10a passes through one end of the aerosol generating substrate 10 along the first direction, and another portion of the airway holes 10a passes through the other end of the aerosol generating substrate 10 along the first direction.
[0094] In some other embodiments, please refer to Figures 3 to 9 Each airway hole 10a passes through both ends of the aerosol generating substrate 10 along the first direction, that is, the airway hole 10a extends along the first direction of the aerosol generating substrate 10, and the airflow can flow from one end of the aerosol generating substrate 10 through the airway hole 10a to the other end of the aerosol generating substrate 10. Preferably, the airway hole 10a is parallel to the central axis of the aerosol generating substrate 10.
[0095] Of course, the airway hole 10a may also be arranged to penetrate the side wall of the aerosol generating substrate 10 .
[0096] In some embodiments, see Figure 4 , Figures 10 to 12 The aerosol generating substrate 10 has a through hole 10n inside, and the airway holes 10a are arranged around the through hole 10n. The through hole 10n passes through at least one end of the aerosol generating substrate 10 along the first direction.
[0097] The pore walls of the airway holes 10a and the through holes 10n constitute the inner surface of the aerosol generating matrix 10. The airway holes 10a can increase the inner surface area of the aerosol generating matrix 10, facilitate heat transfer, and improve heating efficiency. In addition, the aerosol generating matrix 10 generates aerosol after heating, and the aerosol is collected in the airway holes 10a and transported to the suction end under the action of the suction negative pressure. The airway holes 10a can reduce the suction resistance of the user's suction and improve the user experience. It should be noted that the suction resistance is positively correlated with the flow resistance of the aerosol. The smaller the flow resistance of the aerosol in the aerosol generating matrix 10, the smaller the suction resistance experienced by the user. The greater the flow resistance of the aerosol in the aerosol generating matrix 10, the greater the suction resistance experienced by the user.
[0098] It should be noted that the shape of the aerosol generating substrate 10 is not limited herein. For example, in a plane perpendicular to the first direction, the cross-sectional shape of the aerosol generating substrate 10 includes but is not limited to a circle (e.g. Figure 3 to Figure 4 , Figures 9 to 12 ), ellipse, racetrack, polygon or fan-shaped, wherein the polygon includes regular or irregular polygon.
[0099] It should be noted that the shape of the airway hole 10a is not limited here. For example, on a plane perpendicular to the first direction, the cross-sectional shape of the airway hole 10a includes but is not limited to a circle (such as Figures 3 to 9 ), ellipse, racetrack, polygon or fan-shaped, wherein the polygon includes regular or irregular polygon.
[0100] Among them, the runway shape refers to: a shape similar to an athletics track, composed of two semicircles and two parallel straight edges alternately connected.
[0101] The cross-sectional shape of the airway hole 10 a refers to the cross-sectional shape of the airway hole 10 a cut along a plane perpendicular to the first direction of the aerosol generating substrate 10 .
[0102] Exemplarily, when the shape of the airway hole 10 a is circular, the lateral support strength of the aerosol generating substrate 10 can be increased, and the reprocessing performance of the aerosol generating substrate 10 can be improved.
[0103] Exemplarily, when the shape of the airway hole 10a is a square hole, the heating uniformity of the aerosol generating substrate 10 can be improved.
[0104] For example, when the shape of the airway hole 10a is a diamond-shaped hole, the lateral cutting performance of the aerosol generating substrate 10 can be improved, and the deformation of the aerosol generating substrate 10 caused by cutting during the processing can be reduced.
[0105] Exemplarily, when the airway hole 10a is in the shape of a fan-shaped hole, the heat transfer path is single, which can increase the service life of the aerosol generating substrate 10 compared to a multi-path heat transfer method.
[0106] It should be noted that the size of the airway hole 10 a may vary with the size of the end surface of the aerosol generating substrate 10 .
[0107] For example, in some embodiments, see Figure 3 and Figure 6 The aerosol generating matrix 10 has a plurality of airway holes 10 a inside, and each of the airway holes 10 a is formed in the aerosol generating matrix 10 in a uniformly distributed manner.
[0108] It should be noted that the airway holes 10a are in a "uniformly distributed" form, including that each airway hole 10a is distributed in a matrix or concentric circles, that is, the arrangement of each airway hole 10a itself is uniform. It is understandable that each airway hole 10a may be uneven in the cross section of the aerosol generating matrix 10, that is, each airway hole 10a is evenly distributed, but each airway hole 10a does not evenly divide the entire aerosol generating matrix 10. For example, when the cross section of the aerosol generating matrix 10 is circular, the airway holes 10a distributed in a matrix are not evenly distributed in the circular cross section. The pore walls of the airway holes 10a constitute the surface of the aerosol generating matrix 10, and the airway holes 10a can increase the surface area of the aerosol generating matrix 10, facilitate heat transfer, and improve heating efficiency. In addition, the aerosol flows out through the micropores and is collected in the airway holes 10a, and is transported to the suction end under the action of the suction negative pressure, which can reduce the suction resistance of the user's suction and improve the user experience.
[0109] For example, the airway holes 10a may be distributed in a matrix (see Figure 6 and Figure 8 ), or, the distribution of the airway holes 10a is: the distribution after omitting the top corner points on the basis of the matrix distribution (see Figure 3 ).
[0110] For example, all the airway holes 10a are distributed on multiple trajectory lines, wherein the airway holes 10a on a single trajectory line can be arranged along the circumferential direction around the center of the aerosol generating matrix 10, and multiple trajectory lines can be arranged in concentric circles along the radial direction of the aerosol generating matrix 10.
[0111] Of course, in other embodiments, the aerosol generating substrate 10 has a plurality of airway holes 10a inside, and each airway hole 10a is formed in the aerosol generating substrate 10 in a non-uniform distribution, such as in a tic-tac-toe shape or a star shape.
[0112] It is understandable that the distribution of the airway holes 10a is not limited here, and can be specifically set according to factors such as the suction resistance of the aerosol generating matrix 10, the number of puffs, and the utilization rate control of the aerosol generating matrix 10.
[0113] In addition, the cross-sectional shapes of the airway holes 10a can be exactly the same, or the cross-sectional shapes of at least two of the airway holes 10a can be different. For example, the cross-sectional shape of at least one airway hole 10a can be circular, and the cross-sectional shape of at least one airway hole 10a can be polygonal.
[0114] It should be noted that the aerosol generating matrix 10 is formed with micropores, and the micropores are connected to each other and form micro-airways connected to the airway holes 10a. In other words, the micro-airways are connected to the airway holes 10a, and since the micro-airways are formed by the connection between the micropores, the micropores are connected to the micro-airways. In addition, it can be understood that the connection between the micropores may be that some of the micropores are connected and some of the micropores are not connected; or all the micropores may be connected to each other. For example, in an embodiment in which the aerosol generating matrix 10 is a particle combination, the gaps between the particles constitute the micropores. The size of the micropores is determined by the gaps between the particles.
[0115] The airway holes 10a and the micro-airways can increase the surface area of the aerosol generating matrix 10, facilitate heat transfer, and improve heating efficiency. The medium of the aerosol generating matrix 10 releases aerosols when heated, and is collected to the airway holes 10a through the gaps between the wall materials or the micro-airways. The aerosols released by the atomized medium exposed to the airway holes 10a (i.e., the atomized medium located on the inner wall surface of the airway holes 10a) can be directly released to the airway holes 10a. The aerosols between adjacent airway holes 10a can also circulate with each other through the micro-airways and be transported to the suction end under the action of the suction negative pressure.
[0116] In some embodiments, see Figures 1 to 9 The aerosol generating substrate 10 has a first end 10 b and a second end 10 c along the first direction, and the end surface area of the first end 10 b is the minimum cross-sectional area of the aerosol generating substrate 10 along the first direction.
[0117] In a plane perpendicular to the first direction, the end surface area of the first end 10b is the minimum cross-sectional area of the aerosol-generating substrate 10, that is, along the direction from the second end 10c to the first end 10b, the cross-sectional area of at least part of the aerosol-generating substrate 10 decreases, and the end surface area of the first end 10b is smaller than the cross-sectional area of the aerosol-generating substrate 10 in other regions, so that the gap between the circumferential side wall of the first end 10b and the wrapping layer 40 of the aerosol-generating article 100 is larger than the gap between the circumferential side wall of the aerosol-generating substrate 10 in other regions and the wrapping layer 40.
[0118] In this way, by setting the first end 10b as the proximal lip end, the negative pressure generated at the first end 10b during use is small, that is, the flow rate of the aerosol at the first end 10b is slow. At the same time, since the flow rate of the aerosol in the area with a relatively small cross-sectional area is slow, the contact time with the aerosol generating article 100 is relatively long, which can further help reduce the temperature of the aerosol. In addition, the accumulation of aerosol at the first end 10b can be increased, the aerosol density is increased, and the clumping property is enhanced, which can be regarded as an increase in the amount of aerosol released, improving the use experience.
[0119] In some embodiments, see Figures 3 to 9 , along the direction from the second end 10c to the first end 10b, the cross-sectional area of at least a portion of the aerosol generating substrate 10 gradually decreases.
[0120] The cross-sectional area of at least part of the aerosol generating substrate 10 gradually decreases, that is, the cross-sectional area of the aerosol generating substrate 10 along the first direction may gradually decrease in the entire region, or may gradually decrease in the cross-sectional area of part of the region along the first direction.
[0121] The cross-sectional area of at least part of the aerosol generating substrate 10 gradually decreases, that is, the gap between the circumferential side wall of at least part of the aerosol generating substrate 10 and the wrapping layer 40 gradually increases. Therefore, when in use, the negative pressure generated in the gap between the aerosol generating substrate 10 and the wrapping layer 40 gradually decreases, and the flow rate of the aerosol also gradually slows down, which is further beneficial to reduce the temperature of the aerosol.
[0122] The aerosol generating substrate 10 may also be provided with at least two sections, for example, see Figures 10 to 12 In some embodiments, the aerosol generating substrate 10 comprises a first segment 10d and a second segment 10e arranged along a first direction, and a cross-sectional area of the first segment 10d is different from a cross-sectional area of the second segment 10e.
[0123] The cross-sectional area of the first section 10d is different from the cross-sectional area of the second section 10e, that is, one of the first section 10d and the second section 10e has the largest cross-sectional area, and the other has the smallest cross-sectional area.
[0124] It should be noted that the difference between the cross-sectional area of the aerosol generating substrate 10 gradually changing along the first direction and the aerosol generating substrate 10 having at least two sections is that the outer wall of the aerosol generating substrate 10 whose cross-sectional area gradually changes along the first direction always maintains a smooth transition along the first direction, that is, the outer wall of the aerosol generating substrate 10 uniformly changes along the first direction, that is, there is no contour line on the aerosol generating substrate 10 where the cross-sectional area changes significantly, while there is a contour line between two adjacent sections of the aerosol generating substrate 10 with at least two sections where the cross-sectional area changes significantly.
[0125] The cross-sectional area of the first section 10d is different from the cross-sectional area of the second section 10e and can have various structural forms. For example, see Figures 10 to 12, at least one of the first section 10d and the second section 10e is of equal diameter. The cross-sectional area of the first section 10d may be the maximum cross-sectional area of the aerosol-generating substrate 10, and the cross-sectional area of the second section 10e may be the minimum cross-sectional area of the aerosol-generating substrate 10, or the cross-sectional area of the first section 10d may be the minimum cross-sectional area of the aerosol-generating substrate 10, and the cross-sectional area of the second section 10e may be the maximum cross-sectional area of the aerosol-generating substrate 10.
[0126] Among them, at least one of the first section 10d and the second section 10e is an equal-diameter structure, one of the first section 10d and the second section 10e can be an equal-diameter structure, or both of the first section 10d and the second section 10e can be equal-diameter structures.
[0127] An equal-diameter structure refers to a structure in which the cross-sectional area remains consistent, i.e., there is no contour line where the cross-sectional area changes significantly, that is, the cross-sectional area at any position on the first section 10d is the same, and / or the cross-sectional area at any position on the second section 10e is also the same.
[0128] In some embodiments, see Figure 11 to Figure 12 , at least one of the first section 10d and the second section 10e is in plurality, and the first section 10d and the second section 10e are alternately arranged along the first direction. That is, along the first direction, the cross-sectional area of the aerosol-generating substrate 10 may alternately change between increasing and decreasing, for example, the cross-sectional area of the aerosol-generating substrate 10 may increase first and then decrease, or may decrease first and then increase, as long as it can alternately change.
[0129] It should be noted that the cross-sectional area of the first section 10d and the second section 10e is not limited here. The cross-sectional area of the first section 10d may be larger than that of the second section 10e, or the cross-sectional area of the second section 10e may be larger than that of the first section 10d.
[0130] In this way, when in use, the flow rate of the aerosol in the area with a relatively small cross-sectional area can be alternately reduced, which is further conducive to reducing the temperature of the aerosol. In addition, the accumulation of the aerosol in the area with a relatively small cross-sectional area can be alternately increased, the aerosol density is increased, and the clumping property is enhanced, which can be regarded as an increase in the amount of aerosol released, improving the user experience.
[0131] For example, in one specific embodiment, see Fig.11 There are two first sections 10d and one second section 10e. The second section 10e is arranged between the two first sections 10d. Both the first section 10d and the second section 10e are equal-diameter structures, and the cross-sectional area of the first section 10d is greater than the cross-sectional area of the second section 10e.
[0132] For example, in another specific embodiment, please refer to Fig.12 The number of the first segments 10d is three, the number of the second segments 10e is two, the first segments 10d and the second segments 10e are alternately arranged along the first direction, the first segments 10d and the second segments 10e are both equal-diameter structures, and the cross-sectional area of the first segment 10d is greater than the cross-sectional area of the second segment 10e.
[0133] In some embodiments, the aerosol generating substrate 10 includes a first section 10d and a second section 10e arranged along a first direction. The first section 10d is a variable diameter structure whose cross-sectional area gradually decreases along the first direction. The second section 10e is a constant diameter structure. The minimum value of the cross-sectional area of the first section 10d is greater than the cross-sectional area of the second section 10e.
[0134] The minimum value of the cross-sectional area of the first section 10d is greater than the cross-sectional area of the second section 10e, that is, the first section 10d has the largest cross-sectional area, the second section 10e has the smallest cross-sectional area, and along the direction from the first section 10d to the second section 10e, the cross-sectional area of the aerosol generating substrate 10 tends to decrease, and the gap between the outer wall of the aerosol generating substrate 10 and the wrapping layer 40 tends to increase.
[0135] In some embodiments, the first section 10d may be a constant diameter structure, and the second section 10e may be a variable diameter structure whose cross-sectional area gradually decreases along the first direction. The cross-sectional area of the first section 10d is greater than the maximum cross-sectional area of the second section 10e.
[0136] The cross-sectional area of the first section 10d is greater than the maximum cross-sectional area of the second section 10e, that is, the first section 10d has the largest cross-sectional area, the second section 10e has the smallest cross-sectional area, and along the direction from the first section 10d to the second section 10e, the cross-sectional area of the aerosol generating substrate 10 tends to decrease, and the gap between the outer wall of the aerosol generating substrate 10 and the wrapping layer 40 tends to increase.
[0137] Exemplarily, the first section 10d and the second section 10e may both be variable diameter structures. For example, the cross-sectional area of the first section 10d and the cross-sectional area of the second section 10e both gradually decrease along the first direction, and the minimum value of the cross-sectional area of the first section 10d is greater than the maximum value of the cross-sectional area of the second section 10e.
[0138] The maximum value of the cross-sectional area of the first segment 10d is actually the end surface area of the first segment 10d away from the second segment 10e, and the minimum value of the cross-sectional area of the second segment 10e is actually the end surface area of the second segment 10e away from the first segment 10d. By making the minimum value of the cross-sectional area of the first segment 10d greater than the maximum value of the cross-sectional area of the second segment 10e, the end surface area of the far lip end of the aerosol generating matrix 10 can be made the maximum cross-sectional area of the aerosol generating matrix 10, and the end surface area of the near lip end of the aerosol generating matrix 10 can be made the minimum cross-sectional area of the aerosol generating matrix 10.
[0139] Thus, along the direction from the first section 10d to the second section 10e, the cross-sectional area of the aerosol generating substrate 10 tends to decrease, and the gap between the outer side wall of the aerosol generating substrate 10 and the wrapping layer 40 tends to increase.
[0140] In some embodiments, see Figures 3 to 12 The end face shape of the aerosol generating substrate 10 is circular, elliptical, racetrack-shaped, polygonal, oval or fan-shaped.
[0141] The end surface shape of the aerosol-generating substrate 10 includes the end surface shape of the first end 10b of the aerosol-generating substrate 10 and the end surface shape of the second end 10c of the aerosol-generating substrate 10. That is, the end surface shape of the first end 10b of the aerosol-generating substrate 10 includes, but is not limited to, a circle, an ellipse, a racetrack, a polygon, an oval, or a fan; and / or, the end surface shape of the second end 10c of the aerosol-generating substrate 10 includes, but is not limited to, a circle, an ellipse, a racetrack, a polygon, an oval, or a fan.
[0142] Here, oval refers to a shape similar to the outline of an egg, or a shape similar to an ellipsoid after tapering.
[0143] In some implementations, see Figures 3 to 6 The end surface shape of the first end 10b of the aerosol-generating substrate 10 and the end surface shape of the second end 10c of the aerosol-generating substrate 10 may be consistent.
[0144] Exemplarily, the end surface area of the first end 10b is smaller than the end surface area of the second end 10c. That is, the end surface shape of the first end 10b of the aerosol-generating substrate 10 and the end surface shape of the second end 10c of the aerosol-generating substrate 10 are similar shapes.
[0145] Here, similar shapes refer to the same end face shapes but different end face areas.
[0146] The release of aerosol aroma substances can be differentially regulated by controlling the ratio between the end surface area of the first end 10b and the end surface area of the second end 10c.
[0147] Of course, see Figures 10 to 12 The end surface shape of the first end 10b of the aerosol generating substrate 10 and the end surface shape of the second end 10c of the aerosol generating substrate 10 may be consistent, and the end surface area of the first end 10b is equal to the end surface area of the second end 10c.
[0148] In some implementations, see Figure 3 and Figure 4 , the aerosol generating substrate 10 is a rotating body structure.
[0149] Among them, the body of revolution refers to: the surface formed by a plane curve rotating around a fixed straight line in the plane in which it is located is called the surface of revolution; the fixed straight line is called the axis of the body of revolution; the geometric body enclosed by the closed surface of revolution is called the body of revolution.
[0150] For other implementations, see Figures 7 to 9 The end surface shape of the first end 10b of the aerosol generating substrate 10 may be inconsistent with the end surface shape of the second end 10c of the aerosol generating substrate 10. The outer contour of the aerosol generating substrate 10 is uniformly and gradually changed at least along the first direction. In other words, the different end surface shapes of the aerosol generating substrate 10 along the first direction are smoothly connected.
[0151] There are many structures in which the end surface shape of the first end 10b of the aerosol generating substrate 10 and the end surface shape of the second end 10c of the aerosol generating substrate 10 are similar in shape, for example, Figure 3 and Figure 4 As shown in the aerosol generating substrate 10, the end surface shape of the first end 10b of the aerosol generating substrate 10 and the end surface shape of the second end 10c of the aerosol generating substrate 10 are both circular; Figure 5 As shown in the aerosol generating substrate 10, the end surface shape of the first end 10b of the aerosol generating substrate 10 and the end surface shape of the second end 10c of the aerosol generating substrate 10 are both triangular; Figure 6 The aerosol generating substrate 10 shown in the figure has an end face shape of the first end 10b of the aerosol generating substrate 10 and an end face shape of the second end 10c of the aerosol generating substrate 10 that are both quadrilaterals; however, the end face area of the first end 10b of the aerosol generating substrate 10 and the end face area of the second end 10c of the aerosol generating substrate 10, that is, the end face size of the first end 10b and the end face size of the second end 10c are different.
[0152] There are various structures in which the end surface shape of the first end 10b of the aerosol generating substrate 10 is inconsistent with the end surface shape of the second end 10c of the aerosol generating substrate 10, for example: Figure 7The aerosol generating substrate 10 shown in FIG. 1 has an end surface shape of a first end 10b of the aerosol generating substrate 10 that is triangular, and an end surface shape of a second end 10c of the aerosol generating substrate 10 that is circular; Figure 8 The aerosol generating substrate 10 shown has an end face shape of a first end 10b of the aerosol generating substrate 10 that is a quadrilateral, and an end face shape of a second end 10c of the aerosol generating substrate 10 that is a circle; the end face area of the first end 10b of the aerosol generating substrate 10 is smaller than the end face area of the second end 10c of the aerosol generating substrate 10, that is, the end face size of the first end 10b is smaller than the end face size of the second end 10c.
[0153] In some embodiments, see Figures 3 to 8 , projected onto a plane perpendicular to the first direction, the symmetry center of the end surface of the first end 10b coincides with the symmetry center of the end surface of the second end 10c.
[0154] The center of symmetry of the end surface of the first end 10b coincides with the center of symmetry of the end surface of the second end 10c, that is, the axis of symmetry of the aerosol generating substrate 10 is parallel to the first direction.
[0155] Of course, in other embodiments, see Fig. 9 , when projected onto a plane perpendicular to the first direction, the symmetry center of the end surface of the first end 10b is misaligned with the symmetry center of the end surface of the second end 10c.
[0156] The symmetry center of the end surface of the first end 10b is offset from the symmetry center of the end surface of the second end 10c, that is, the symmetry axis of the aerosol generating substrate 10 is not parallel to the first direction, or the aerosol generating substrate 10 has no symmetry axis.
[0157] Of course, in other embodiments, the end surface of the first end 10b and / or the end surface of the second end 10c may also not have a symmetry center.
[0158] The aerosol generating substrate 10 is described as an example of uniform gradual change along the first direction. The aerosol generating substrate 10 in this embodiment is columnar. When the heating element heats the columnar aerosol generating substrate 10, the aerosol generating substrate 10 generates aerosol. Due to the negative pressure generated by suction, the aerosol flows to the proximal lip end. The aerosol generating substrate 10 has a relatively large cross-sectional area and a relatively small cross-sectional area. The gap between the relatively small cross-sectional area and the wrapping layer 40 of the aerosol generating product 100 is large. When in use, the air flow velocity is reduced at the large gap, and the aerosol gathers there, which increases the aerosol density during use and enhances the agglomeration property. It can be regarded as an increase in the amount of aerosol released, and the ratio of the cross-sectional area of the first end 10b of the columnar aerosol generating substrate 10 to the cross-sectional area of the second end 10c can be controlled, which is conducive to adjusting the aerosol agglomeration efficiency.
[0159] It can be understood that if the cooling material is coated on the area with a relatively small cross-sectional area of the aerosol generating substrate 10, that is, the cooling material is wrapped or coated on the outside of the area with a relatively small cross-sectional area of the aerosol generating substrate 10, it is beneficial for the aerosol to fully contact with the cooling material here, thereby further reducing the temperature of the aerosol.
[0160] In addition, when the heating element heats the aerosol generating matrix 10, the area with a relatively large cross-sectional area of the aerosol generating matrix 10 can directly contact the heating element for heat conduction, while the area with a relatively small cross-sectional area of the aerosol generating matrix 10 is more susceptible to heat convection and heat radiation effects, thereby achieving thermal zone differences in different areas of the aerosol generating matrix 10, effectively improving the release of aerosol aroma substances, and increasing the richness of the aerosol. By controlling the difference in the cross-sectional area of the columnar aerosol generating matrix 10, the release of aerosol aroma substances can be differentially adjusted.
[0161] In some embodiments, the longest diameter of the end surface of the first end 10b is 4 mm-6 mm, for example, 4 mm, 4.1 mm, 4.2 mm, 4.3 mm, 4.5 mm, 4.6 mm, 4.8 mm, 5 mm, 5.2 mm, 5.3 mm, 5.5 mm, 5.6 mm, 5.7 mm, 5.9 mm, 6 mm, etc.
[0162] Preferably, the longest diameter of the end surface of the first end 10b is 4.5 mm-5 mm, such as 4.5 mm, 4.7 mm, 4.9 mm, 5 mm, etc.
[0163] Among them, the longest diameter refers to: in the end face, the distance corresponding to the two points with the largest distance is the longest diameter. For example, when the end face is circular, the longest diameter is the length of the diameter; when the end face is rectangular, the longest diameter is the length of the diagonal.
[0164] In some embodiments, the longest diameter of the end surface of the second end 10c is 6mm-10mm, for example, 6mm, 6.1mm, 6.2mm, 6.4mm, 6.5mm, 6.6mm, 6.8mm, 7mm, 7.2mm, 7.3mm, 7.5mm, 7.6mm, 7.8mm, 7.9mm, 8mm, 8.5mm, 8.6mm, 8.8mm, 9mm, 9.6mm, 9.7mm, 9.9mm, 10mm, etc.
[0165] Preferably, the longest diameter of the end surface of the second end 10c is 7 mm-8.6 mm, for example, 7 mm, 7.1 mm, 7.4 mm, 7.5 mm, 7.7 mm, 8 mm, 8.1 mm, 8.2 mm, 8.3 mm, 8.4 mm, 8.5 mm, 8.6 mm, etc.
[0166] In some embodiments, the ratio of the end surface area of the first end 10b to the end surface area of the second end 10c is 0.4-0.8, such as 0.4, 0.45, 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, etc.
[0167] Preferably, the ratio of the end surface area of the first end 10b to the end surface area of the second end 10c is 0.6-0.7, for example, 0.6, 0.61, 0.62, 0.63, 0.64, 0.66, 0.67, 0.68, 0.69, 0.7, etc.
[0168] When the ratio of the end face area of the first end 10b to the end face area of the second end 10c is in the range of 0.4-0.8, the size difference between the cross-sectional area of the first end 10b and the cross-sectional area of the second end 10c can be appropriately achieved to achieve the adjustment of aerosol agglomeration efficiency and alienation adjustment of aerosol aroma substance release, thereby improving the user experience.
[0169] In some embodiments, see Figure 1 and Figure 2 The circumferential side wall of at least a portion of the aerosol generating substrate 10 is spaced apart from the wrapping layer 40 and defines a spacing space 100a. The aerosol generating article 100 further includes a filling member 30 disposed in the spacing space 100a.
[0170] The cross-sectional area at at least one position of the aerosol generating matrix 10 is different from the cross-sectional areas at other positions, which means that the aerosol generating matrix 10 is a variable cross-sectional structure with a changing cross-sectional area, that is, the cross-sectional area at at least one position of the aerosol generating matrix 10 is smaller than the cross-sectional areas at other positions, that is, the circumferential side wall of the aerosol generating matrix 10 located in the region with relatively small cross-sectional area is spaced apart from the wrapping layer 40 and defines a spacing space 100a, and the filling member 30 is filled in the spacing space 100a.
[0171] In this way, the filling member 30 can be provided to fit the aerosol generating matrix 10, and functional materials and the like can be provided in the filling member 30 to achieve the desired functions, thereby improving the user experience.
[0172] In some embodiments, the filling member 30 includes a fragrance-carrying material. In this way, during use, the fragrance substance is released, thereby increasing the richness of the aerosol, thereby improving the user's experience.
[0173] In some embodiments, the filler 30 includes a cooling material. For example, the cooling material is wrapped or coated on the filler 30, which is beneficial for the aerosol to fully contact with the cooling material at this place, thereby further reducing the temperature of the aerosol.
[0174] In some embodiments, the filler 30 is a hollow paper tube, which is used to fit the aerosol generating substrate 10 , thereby improving the stability of the aerosol generating substrate 10 .
[0175] In some embodiments, the filling member 30 and the functional section 20 are an integrated structure. The integrated filling member 30 and the functional section 20 can reduce the number of parts, reduce assembly time, and improve assembly efficiency.
[0176] Of course, the filling piece 30 and the functional section 20 may also be a separate structure. The separate filling piece 30 and the functional section 20 are conducive to forming a desired structure.
[0177] In the description of the present application, the description with reference to the terms "in one embodiment", "in some embodiments", "in other embodiments", "in yet other embodiments", or "exemplary" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In the present application, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.
[0178] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application are included in the protection scope of the present application.
Claims
1. An aerosol generating substrate, characterized in that The aerosol generating substrate is an integral structure extending along a first direction, and along the first direction, the cross-sectional area of the aerosol generating substrate at at least one position is different from the cross-sectional areas at other positions.
2. The aerosol-generating substrate according to claim 1, characterized in that The aerosol generating substrate has a first end and a second end along a first direction, and along the first direction, an end surface area of the first end is a minimum cross-sectional area of the aerosol generating substrate.
3. The aerosol-generating substrate according to claim 2, characterized in that In a direction from the second end to the first end, the cross-sectional area of at least a portion of the aerosol generating substrate gradually decreases.
4. The aerosol-generating substrate according to claim 1, characterized in that The aerosol generating substrate comprises a first segment and a second segment arranged along the first direction, and a cross-sectional area of the first segment is different from a cross-sectional area of the second segment.
5. The aerosol-generating substrate according to claim 4, characterized in that At least one of the first section and the second section is of equal diameter structure.
6. The aerosol-generating article of claim 4, wherein: The number of at least one of the first segment and the second segment is plural, and the first segment and the second segment are alternately arranged along the first direction.
7. The aerosol-generating substrate according to claim 1, characterized in that The aerosol generating substrate comprises a first segment and a second segment arranged along the first direction; The first section is a variable diameter structure whose cross-sectional area gradually decreases along a first direction, the second section is a constant diameter structure, and the minimum value of the cross-sectional area of the first section is greater than the cross-sectional area of the second section; or, The first section is a constant diameter structure, the second section is a variable diameter structure with a cross-sectional area gradually decreasing along a first direction, and the cross-sectional area of the first section is greater than the maximum value of the cross-sectional area of the second section.
8. The aerosol-generating substrate according to claim 1, characterized in that The aerosol generating substrate comprises a first segment and a second segment arranged along the first direction; The cross-sectional area of the first segment and the cross-sectional area of the second segment both gradually decrease along the first direction, and the minimum value of the cross-sectional area of the first segment is greater than the maximum value of the cross-sectional area of the second segment.
9. An aerosol generating substrate according to any one of claims 1 to 8, characterised in that The end face shape of the aerosol generating substrate is circular, elliptical, racetrack-shaped, polygonal, oval or fan-shaped.
10. An aerosol-generating substrate according to any one of claims 1 to 8, characterised in that The aerosol generating substrate has a first end and a second end along a first direction, and when projected onto a plane perpendicular to the first direction, the symmetry center of the end surface of the first end coincides with the symmetry center of the end surface of the second end.
11. An aerosol generating substrate according to any one of claims 1 to 8, characterised in that The aerosol generating substrate has a first end and a second end along the first direction, an end surface shape of the first end is consistent with an end surface shape of the second end, and an end surface area of the first end is smaller than an end surface area of the second end.
12. The aerosol-generating substrate according to claim 11, characterized in that The aerosol generating substrate is a rotating body structure.
13. An aerosol-generating substrate according to any one of claims 1 to 8, characterized in that The aerosol generating substrate has a first end and a second end along the first direction, the end surface shape of the first end is inconsistent with the end surface shape of the second end, and the outer contour of the aerosol generating substrate changes uniformly and gradually at least along the first direction.
14. An aerosol-generating substrate according to any one of claims 1 to 8, characterised in that The aerosol generating substrate has a first end and a second end along a first direction, and when projected onto a plane perpendicular to the first direction, the symmetry center of the end surface of the first end is misaligned with the symmetry center of the end surface of the second end.
15. An aerosol-generating substrate according to any one of claims 1 to 8, characterised in that The aerosol generating substrate has a first end and a second end along a first direction; The longest diameter of the end surface of the first end is 4 mm to 6 mm; and / or, The longest diameter of the end surface of the second end is 6 mm to 10 mm; and / or, The ratio of the end surface area of the first end to the end surface area of the second end is 0.4-0.
8.
16. The aerosol-generating substrate according to claim 15, characterized in that The longest diameter of the end surface of the first end is 4.5 mm-5 mm; and / or, The longest diameter of the end surface of the second end is 7 mm to 8.6 mm; and / or, The ratio of the end surface area of the first end to the end surface area of the second end is 0.6-0.
7.
17. An aerosol-generating substrate according to any one of claims 1 to 8, characterised in that The aerosol generating substrate has at least one air passage hole inside, and the air passage hole passes through at least one end of the aerosol generating substrate along the first direction.
18. An aerosol-generating substrate according to claim 17, characterized in that In a plane perpendicular to the first direction, the cross-sectional shape of the aerosol generating substrate and / or the airway hole is circular, elliptical, racetrack-shaped, polygonal, oval or fan-shaped.
19. An aerosol generating article, characterized in that include: The aerosol-generating substrate according to any one of claims 1 to 18; A functional segment disposed at one end of the aerosol generating substrate along the first direction, the functional segment at least comprising a filtering segment for filtering aerosol; A wrapping layer wraps around the functional segment and the outer peripheral side of the aerosol generating substrate.
20. An aerosol-generating article according to claim 19, wherein The circumferential side wall of at least a portion of the aerosol generating substrate is spaced apart from the wrapping layer and defines a spacing space, and the aerosol generating article further includes a filling member disposed in the spacing space.
21. An aerosol-generating article according to claim 20, characterized in that The filling piece includes fragrance-carrying material and / or cooling material; or, the filling piece is a hollow paper tube.
22. The aerosol-generating article of claim 20, wherein: The filling piece and the functional section are an integrated structure.