Aerosol generating product

Abstract

The aerosol generating product comprises a medium section and a functional section, the functional section is arranged at one end, in the first direction, of the medium section, the functional section is used for cooling aerosol generated by the medium section, the medium section is of an integrated structure, and at least one first air channel hole is formed in the medium section; the first air channel hole penetrates through at least one end of the medium section in the first direction. The medium section provided by the embodiment of the invention is of an integrated structure, so that the density uniformity of the medium section can be improved, and the stability of aerosol release and suction can be improved. In addition, the functional section is simple in structure, the structural design and the technological process of the aerosol generating product are simplified, and the production cost is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of smoking products, and in particular to an aerosol generating product. Background Art

[0002] Smoking articles include smoking articles that form aerosols by ignition and smoking articles that form aerosols by heating without burning. In a typical smoking article that heats without burning, it contains an aerosol-generating substrate that can volatilize when heated to generate an aerosol. The aerosol-generating substrate is heated by an external heat source so that it is heated to a degree just sufficient to emit a fragrance. The aerosol-generating substrate does not burn, but instead loads an atomizer and releases the atomizer through high-temperature heating to form smoke when used.

[0003] In the prior art, the smoking materials of smoking products are usually of three types: particle type, tobacco type, and sheet type. However, the smoking segment materials in the related technology have many problems during user use, such as: 1. The sheet-type aerosol generating matrix is ​​prone to sticking to the heating device of the device during use, and uneven aerosol release is prone to occur during the user's inhalation process; 2. The tobacco-type aerosol generating matrix is ​​prone to matrix shedding during use, and is also prone to "wire blocking" when used in conjunction with a central heating device; 3. The particle-type aerosol generating matrix is ​​prone to large differences in the uniformity of the filling particle morphology during the production and processing process, and is also prone to the seal falling off, moisture absorption, and sticking and agglomeration with the device during use.

[0004] In addition, the functional segment structure design of existing smoking products is relatively complex, resulting in complex process flow and high manufacturing cost. Summary of the invention

[0005] In view of this, the present application hopes to provide an aerosol generating product that can simplify the process and reduce production costs.

[0006] To achieve the above-mentioned purpose, an embodiment of the present application provides an aerosol generating product, which includes a medium segment and a functional segment. The functional segment is provided at one end of the medium segment along a first direction, and the functional segment is used to cool the aerosol generated by the medium segment. The medium segment is an integrated structure, and at least one first airway hole is provided inside the medium segment, and the first airway hole passes through at least one end of the medium segment along the first direction.

[0007] In one embodiment, the medium segment and the functional segment are coaxially arranged cylinders with the same outer diameter, and the first direction is the axial direction of the medium segment and the functional segment.

[0008] In one embodiment, the medium segment and the functional segment are separable structures.

[0009] In one embodiment, the functional segment is an integral structure formed by extrusion, and the interior of the functional segment has at least one second airway hole, and the second airway hole runs through at least one end of the functional segment along the first direction.

[0010] In one embodiment, in a plane perpendicular to the first direction of the aerosol generating article, the cross-sectional area of ​​the second airway hole is smaller than the cross-sectional area of ​​the first airway hole, or the hydraulic diameter of the second airway hole is smaller than the hydraulic diameter of the first airway hole.

[0011] In one embodiment, at least part of the second airway holes are in communication with the first airway holes.

[0012] In one embodiment, an airway groove is formed on the circumferential outer surface of the functional segment, and the airway groove runs through two opposite ends of the functional segment along the first direction.

[0013] In one embodiment, the composition of the functional segment is the same as that of the dielectric segment.

[0014] In one embodiment, a channel is provided inside the functional segment, and the channel runs through both ends of the functional segment along the first direction;

[0015] In a plane perpendicular to the first direction of the aerosol generating article, the cross-sectional area of ​​the channel is larger than the cross-sectional area of ​​a single first airway hole, or the hydraulic diameter of the channel is larger than the hydraulic diameter of a single first airway hole.

[0016] In one embodiment, the functional segment is a solid structure and is provided with a plurality of micropores; or, the medium segment and the functional segment are spaced apart to define a cavity.

[0017] In one embodiment, the aerosol generating article includes a covering layer, wherein the covering layer covers the circumferential exterior of the medium segment, and the covering layer and the medium segment are an integral structure.

[0018] In one embodiment, the aerosol generating article comprises a wrapping layer, which wraps around the circumferential exterior of the media segment and the functional segment.

[0019] An embodiment of the present application provides an aerosol generating product, which includes a medium segment and a functional segment. The functional segment is provided at one end of the medium segment along a first direction. The medium segment generates an aerosol when heated. The functional segment is used to cool the aerosol generated by the medium segment to avoid the problem of "burning the mouth". The functional segment can also have supporting and / or filtering functions, thereby improving the user experience.

[0020] The medium segment of the aerosol generating product provided in the embodiment of the present application is an integrated structure, which can be formed into an integrated structure by, for example, extrusion, die casting or injection molding to improve the uniformity of the density of the medium segment and improve the stability of aerosol release and suction. In addition, the functional segment structure of the embodiment of the present application is simple, which simplifies the structural design and process flow of the aerosol generating product and reduces the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of an aerosol generating product according to an embodiment of the present application;

[0022] Figure 2 for Figure 1 A cross-sectional view of an aerosol-generating article shown, wherein the dashed arrows indicate the direction of airflow in the aerosol-generating article;

[0023] Figure 3 is a schematic cross-sectional view of an aerosol generating article in a second embodiment of the present application;

[0024] Figure 4 is a schematic cross-sectional view of an aerosol generating article in a third embodiment of the present application;

[0025] Figure 5 is a schematic cross-sectional view of an aerosol generating article in a fourth embodiment of the present application;

[0026] Figure 6 is a schematic cross-sectional view of an aerosol generating article in a fifth embodiment of the present application;

[0027] Figure 7 is a schematic cross-sectional view of an aerosol generating article in a sixth embodiment of the present application;

[0028] Figure 8 It is a schematic cross-sectional view of the aerosol generating article in the seventh embodiment of the present application.

[0029] Description of Reference Numerals

[0030] 10. Medium segment; 10a. First airway hole; 20. Functional segment; 20a. Second airway hole; 20b. Channel; 30. Wrapping layer; 40. Covering layer; 100. Aerosol generating product; 100a. Cavity. DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments and technical features in the embodiments of the present application can be combined with each other, and the detailed description in the specific implementation method should be understood as an explanation of the purpose of the present application and should not be regarded as an improper limitation on the present application.

[0032] 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.

[0033] The present application provides an aerosol generating product. Figures 1 to 8 , including a medium segment 10 and a functional segment 20. That is, the medium segment 10 and the functional segment 20 are respectively located at two ends of the aerosol generating article 100, wherein the medium segment 10 is the distal lip end of the aerosol generating article 100, and the functional segment 20 is the proximal lip end of the aerosol generating article 100.

[0034] 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 .

[0035] The functional section 20 can be used to cool and / or filter the aerosol. The functional section 20 is, for example, a cooling section.

[0036] Of course, the functional section 20 may also be a filtering section. It is understandable that the filtering section is arranged at one end of the medium section and also has the function of cooling the aerosol.

[0037] The aerosol-generating article 100 relies on the medium segment 10 to generate aerosol, and the functional segment 20 is not used to generate aerosol.

[0038] 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.

[0039] The aerosol-generating article 100 is intended for use with an aerosol-generating device.

[0040] The medium segment 10 is used to generate an aerosol when heated for inhalation by a user.

[0041] In the embodiment of the present application, the medium segment 10 is substantially cylindrical, which may be a cylindrical shape (i.e., a circular cross-sectional shape), a prism shape (i.e., a polygonal cross-sectional shape), an elliptical cylinder shape (i.e., an elliptical cross-sectional shape), etc., without limitation.

[0042] Exemplarily, the medium segment 10 and the functional segment 20 are separable structures, and the two are not connected together by mechanical, physical structure or adhesive, but the two can be in contact. The medium segment 10 and the functional segment 20 are a combined structure, so different medium segments 10 and different functional segments 20 can be reasonably matched to meet the different suction needs of customers.

[0043] The medium segment 10 is an integrated structure, for example, an integrated structure can be formed by extrusion, injection molding or die-casting. Extrusion molding refers to a processing method in which a raw material mixture is added to an extruder, and the material is pushed forward by the screw through the action between the extruder barrel and the screw, and continuously passes through the mold of the extruder outlet to form various cross-section products or semi-finished products. The medium structure formed by extrusion molding is strip-shaped. In this way, after the medium segment 10 is heated and sucked or stops being heated, it is an integrated medium, which is not easy to disintegrate and fall off, and solves the problems of the thin sheet, filamentous component, granular component falling off, and difficulty in cleaning in the prior art of the thin sheet, filamentous component or loose granular medium segment 10. And the problem of uneven components.

[0044] The interior of the medium section 10 has at least one first airway hole 10a, see Figures 2 to 8 The first air channel hole 10a passes through at least one end of the medium segment 10 along the first direction.

[0045] The inside of the medium segment 10 has at least one first air passage hole 10 a . The inside of the medium segment 10 may have one first air passage hole 10 a , or the inside of the medium segment 10 may have multiple first air passage holes 10 a .

[0046] It should be noted that the “multiple” mentioned in the embodiments of the present application refers to a number of two or more.

[0047] In some embodiments, the first air channel holes 10a penetrate the same end of the medium segment 10 along the first direction, and the other end is closed.

[0048] In other embodiments, a portion of the first air passage holes 10a penetrates one end of the medium segment 10 along the first direction, and another portion of the first air passage holes 10a penetrates the other end of the medium segment 10 along the first direction.

[0049] In some other embodiments, please refer to Figures 2 to 8 Each first airway hole 10a runs through both ends of the medium segment 10 along the first direction, that is, the first airway hole 10a extends along the first direction of the medium segment 10, and the airflow can flow from one end of the medium segment 10 through the first airway hole 10a to the other end of the medium segment 10. Preferably, the first airway hole 10a is parallel to the central axis of the medium segment 10.

[0050] It should be noted that the first airway holes 10a are holes in the macroscopic sense, and the micropores are holes in the microscopic sense. The cross-sectional area of ​​the first airway holes 10a is much larger than that of the micropores. The size of the micropores is determined by the gaps between particles.

[0051] It should be noted that the shape of the first airway hole 10a is not limited here. For example, on a plane perpendicular to the first direction of the medium segment 10, the cross-sectional shape of the first airway hole 10a includes but is not limited to a circle (such as Figures 2 to 8 ), elliptical, racetrack or polygonal, wherein the polygon includes regular or irregular polygons.

[0052] 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.

[0053] The cross-sectional shape of the first airway hole 10 a refers to the cross-sectional shape of the first airway hole 10 a cut along a plane perpendicular to the first direction of the medium segment 10 .

[0054] In addition, the shapes of the cross sections of the first airway holes 10a can be exactly the same, or the shapes of the cross sections of at least two of the first airway holes 10a can be different. For example, the shape of the cross section of at least one of the first airway holes 10a can be circular, and the shape of the cross section of at least one of the first airway holes 10a can be polygonal.

[0055] An embodiment of the present application further provides an aerosol generating device for use with the sol generating product provided in the embodiment of the present application. The aerosol generating device includes a heating component (not shown), which is used to heat the medium segment 10 to generate an aerosol.

[0056] Specifically, the aerosol generating device includes a shell and a power supply assembly arranged in the shell. The shell has a containing chamber. The power output part of the power supply assembly is arranged in the containing chamber or around the side wall of the containing chamber. When the aerosol generating product 100 is inserted into the containing chamber at a position corresponding to the first direction range where the medium segment 10 is located, the power output part transmits power to the heating assembly in a contact or non-contact manner. The heating assembly receives energy from the outside and generates heat, thereby heating the medium segment 10 and generating an aerosol.

[0057] In the embodiment of the present application, the first direction does not specifically refer to the direction in which the outer contour of the medium segment 10 is the longest. Specifically, the direction in which the aerosol generating article 100 is inserted into the containing chamber and the direction in which the aerosol generating article 100 is taken out of the containing chamber are both parallel to the first direction. The length of the medium segment 10 along the first direction may be longer, shorter, or the same as the length in other directions.

[0058] For example, when the appearance of the medium segment 10 is cylindrical, the first direction is the axial direction of the medium segment 10. It should be noted that even when the axial length of the medium segment 10 is less than its diameter, the first direction of the medium segment 10 is still the axial direction. For another example, when the appearance of the medium segment 10 is a rectangular parallelepiped, the first direction is still the direction defined above, that is, the direction in which the aerosol generating article 100 is taken out of the containing chamber. The first direction of the medium segment 10 can be any direction of the length, width, and height of the rectangular parallelepiped.

[0059] An embodiment of the present application provides an aerosol generating product. The aerosol generating product 100 includes a medium segment 10 and a functional segment 20. The functional segment 20 is provided at one end of the medium segment 10 along a first direction. The medium segment 10 generates an aerosol when heated. The functional segment 20 is used to cool the aerosol generated by the medium segment to avoid the problem of "burning the mouth". The functional segment 20 can also have supporting and / or filtering functions, thereby improving the user experience.

[0060] 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.

[0061] The medium segment 10 of the aerosol generating product provided in the embodiment of the present application is an integrated structure. For example, the integrated structure can be formed by extrusion, die-casting or injection molding to improve the uniformity of the density of the medium segment 10 and improve the stability of aerosol release and suction. In addition, the mass of the medium segment 10 with an integrated structure is relatively uniform. When the heating component heats the medium segment 10, it will not squeeze the structure around the medium segment 10, so that the medium segment 10 maintains a relatively uniform matrix density. Furthermore, the medium segment 10 with an integrated structure is not prone to sticking, agglomeration, etc. with the aerosol generating device. Furthermore, the functional segment structure of the embodiment of the present application is simple, which simplifies the structural design and process flow of the aerosol generating product and reduces the production cost.

[0062] The specific components of the medium segment 10 are not limited here. For example, in one embodiment, the medium segment 10 may include plant components, auxiliary components, smoke-generating agent components, adhesive components, and flavor components.

[0063] 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 suction process and enhance the user experience. The auxiliary component can not only improve the fluidity of the mixed material, but also make the medium segment 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.

[0064] 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.

[0065] 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 medium section 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.

[0066] 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.

[0067] 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 polysaccharide, 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 medium segment 10 and is harmless to the human body.

[0068] 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.

[0069] The first airway hole 10a can increase the surface area of ​​the medium segment 10, facilitate heat transfer, and improve heating efficiency. The aerosol in the first airway hole 10a is transported to the suction end under the action of the suction negative pressure. The first airway hole 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 medium segment 10, the smaller the suction resistance experienced by the user. The greater the flow resistance of the aerosol in the medium segment 10, the greater the suction resistance experienced by the user.

[0070] It should be noted that the medium segment 10 is formed with micropores, and the micropores are connected to each other and form a micro-airway connected to the first airway hole 10a. In other words, the micro-airway is connected to the first airway hole 10a. Since the micro-airway is formed by the connection between the micropores, the micropores are connected to the channel 10a. In addition, it can be understood that the connection between the micropores can be that some of the micropores are connected and some of the micropores are not connected; or all the micropores are connected to each other. For example, in the embodiment where the medium segment 10 is a particle combination, the gaps between the particles constitute the micropores.

[0071] The first airway hole 10a and the micro-airway can increase the surface area of ​​the medium segment 10, facilitate heat transfer, and improve heating efficiency. The medium of the medium segment 10 releases aerosols when heated, and is collected to the first airway hole 10a through the gaps between the wall materials or the micro-airway. The aerosols released by the atomized medium exposed to the first airway hole 10a (i.e., the atomized medium located on the inner wall surface of the first airway hole 10a) can be directly released to the first airway hole 10a. The aerosols between adjacent first airway holes 10a can also circulate with each other through the micro-airway and be transported to the suction end under the action of the suction negative pressure.

[0072] Exemplarily, the outer contour of the dielectric segment 10 is the same as the outer contour of the functional segment 20. That is, the outer shape of the dielectric segment 10 is the same as the outer shape of the functional segment 20, and the outer size of the dielectric segment 10 is also the same as the outer size of the functional segment 20. For example, when the outer contour of the dielectric segment 10 and the outer contour of the functional segment 20 are both cylindrical, the outer diameter of the dielectric segment 10 is the same as the outer diameter of the functional segment 20. In this way, the cooperation between the dielectric segment 10 and the functional segment 20 is more conducive.

[0073] For example, in some embodiments, please refer to Figure 4 and Figure 5 The functional section 20 can be an integral structure formed by extrusion. The integral structure functional section 20 manufactured by the extrusion molding process has the functions of temperature resistance and preventing thermal collapse in addition to the cooling function. Among them, extrusion molding can be, for example, a processing method in which a raw material mixture constituting the functional section 20 is added to an extruder, and the material mixture is pushed forward by the screw through the action between the extruder barrel and the screw, and continuously passes through the mold of the extruder outlet to form various cross-section products or semi-finished products.

[0074] For example, in some embodiments, the composition of the functional segment 20 is the same as that of the medium segment 10. In this way, during use, the functional segment 20 will not bring bad smells and avoid affecting the taste of the aerosol. In addition, the composition of the functional segment 20 is the same as that of the medium segment 10, which is more conducive to the functional segment 20 and the medium segment 10 being manufactured by the same manufacturing process and raw materials, thereby improving production efficiency.

[0075] Of course, in other embodiments, the composition of the functional segment 20 is different from that of the medium segment 10. The functional segment 20 can be made of different materials such as plant materials, polysaccharides, silica gel, resin, etc.

[0076] See also Figure 4 and Figure 5 The functional segment 20 has at least one second airway hole 20a inside, and the second airway hole 20a runs through at least one end of the functional segment 20 along the first direction.

[0077] The functional segment 20 has at least one second airway hole 20 a inside. The functional segment 20 may have one second airway hole 20 a inside, or may have multiple second airway holes 20 a inside.

[0078] In some embodiments, the second airway holes 20a penetrate the same end of the functional section 20 along the first direction, and the other end is closed.

[0079] In other embodiments, a portion of the second airway holes 20a penetrates one end of the functional segment 20 along the first direction, and another portion of the second airway holes 20a penetrates the other end of the functional segment 20 along the first direction.

[0080] In some other embodiments, please refer to Figure 4 and Figure 5 Each second airway hole 20a runs through both ends of the functional segment 20 along the first direction, that is, the second airway hole 20a extends along the first direction of the functional segment 20, and the airflow can flow from one end of the functional segment 20 through the second airway hole 20a to the other end of the functional segment 20. Preferably, the second airway hole 20a is parallel to the central axis of the functional segment 20.

[0081] It can be understood that the functional section 20 of the extruded integral structure also has micropores inside, and the micropores are connected to each other to form micro airways connected to the second airway holes 20a.

[0082] It should be noted that the first airway hole 10a and the second airway hole 20a are holes in the macroscopic sense, and the micropores are holes in the microscopic sense. The cross-sectional area of ​​the first airway hole 10a is much larger than that of the micropores. The size of the micropores is determined by the gaps between particles.

[0083] When the functional section 20 is provided with a plurality of second airway holes 20a, the aerosol can exchange heat with the hole walls of the second airway holes 20a when flowing through the second airway holes 20a. The temperature of the aerosol can be effectively reduced by using multi-airway heat exchange.

[0084] The functional segment 20 adjusts the functions of cooling, filtering and adjusting the suction resistance by setting the second airway hole 20a and controlling the design parameters of the second airway hole 20a, for example, by controlling the number of the second airway holes 20a of the functional segment 20, the cross-sectional area (hydraulic diameter) of the second airway holes 20a, the cross-sectional area of ​​the functional segment 20 and other parameters.

[0085] It should be noted that the shape of the second airway hole 20a is not limited here. For example, on a plane perpendicular to the first direction of the functional section 20, the cross-sectional shape of the second airway hole 20a includes but is not limited to a circle (such as Figure 4 and Figure 5 ), at least one of an ellipse, a racetrack, a strip, a polygon and a fan, wherein the polygon includes a regular or irregular polygon.

[0086] The cross-sectional shape of the second airway hole 20 a refers to the cross-sectional shape of the second airway hole 20 a cut along a plane perpendicular to the first direction of the functional section 20 .

[0087] In addition, the shapes of the cross sections of the second airway holes 20a can be exactly the same, or the shapes of the cross sections of at least two of the second airway holes 20a can be different. For example, the shape of the cross section of at least one of the second airway holes 20a can be circular, and the shape of the cross section of at least one of the second airway holes 20a can be polygonal.

[0088] In order to facilitate the aerosol generated by the medium segment 10 being heated to flow directly out of the second airway holes 20a of the functional segment 20 for inhalation by the user, illustratively, at least part of the second airway holes 20a are in communication with the first airway holes 10a. That is, when projected on a plane perpendicular to the first direction of the aerosol generating article 100, at least part of the orthographic projection of the second airway holes 20a and the first airway holes 10a overlap.

[0089] It should be noted that the second airway hole 20a and the first airway hole 10a mentioned here are connected directly.

[0090] For example, on a plane perpendicular to the first direction of the aerosol generating article 100, the cross-sectional area of ​​a single second airway hole 20a is smaller than the cross-sectional area of ​​a single first airway hole 10a, or the hydraulic diameter of a single second airway hole 20a is smaller than or equal to the hydraulic diameter of a single first airway hole 10a. This is conducive to achieving the functions of cooling and filtering the aerosol and adjusting the inhalation resistance of the aerosol generating article 100.

[0091] In the embodiment of the present application, the hydraulic diameter refers to the ratio of four times the flow cross-sectional area to the circumference.

[0092] It can be understood that the number of the second airway holes 20a is greater than the number of the first airway holes 10a. The second airway holes 20a with a large number and a small cross-sectional area are more conducive to cooling and filtering the aerosol, and adjusting the inhalation resistance of the aerosol generating product 100.

[0093] Exemplarily, an airway groove is formed on the circumferential outer surface of the functional segment 20, and the airway groove runs through the two opposite ends of the functional segment 20 along the first direction. The provision of the airway groove can increase the contact area between the aerosol and the functional segment 20, reduce the flow rate of the aerosol, and is more conducive to reducing the temperature of the aerosol.

[0094] It should be noted that the number of airway grooves is not limited here, that is, one airway groove or multiple airway grooves may be provided. When the functional segment 20 is provided with multiple airway grooves, each airway groove is provided at intervals on the circumferential outer surface of the functional segment 20 .

[0095] See also Figure 1 , Figure 2 and Figure 8 A channel 20b is provided inside the functional segment 20, and the channel 20b runs through both ends of the functional segment 20 along the first direction. Preferably, the center line of the channel 20b coincides or substantially coincides with the center axis of the functional segment 20 along the first direction.

[0096] Illustratively, in a plane perpendicular to the first direction of the aerosol generating article 100, the cross-sectional area of ​​the channel 20b is greater than the cross-sectional area of ​​the single first airway hole 10a. Alternatively, the hydraulic diameter of the channel 20b is greater than the hydraulic diameter of the single first airway hole 10a.

[0097] That is to say, a channel 20b with a larger aperture is provided inside the functional segment 20, and the channel 20b runs through both ends of the functional segment 20 along the first direction. The aerosol generated by the medium segment 10 can flow into the channel 20b for cooling, and is conducive to the aerosol gathering toward the center and being inhaled. The aerosol has good agglomeration properties, which facilitates the aerosol generated by the medium segment 10 to be effectively extracted from the channel 20b of the functional segment 20 for inhalation by the user.

[0098] Specifically, in order to facilitate the aerosol generated by the medium segment 10 when heated to flow directly out of the channel 20b of the functional segment 20 for the user to inhale. Figure 1 , Figure 2 and Figure 8 , at least part of the first airway hole 10a is connected to the channel 20b. That is, when projected on a plane perpendicular to the first direction of the aerosol generating article 100, the channel 20b overlaps at least part of the orthographic projection of the first airway hole 10a.

[0099] It should be noted that the communication between the channel 20b and the first airway hole 10a mentioned here refers to direct communication.

[0100] For example, in some embodiments, a channel 20b is provided inside the functional segment 20, the channel 20b runs through both ends of the functional segment 20 along the first direction, a corrugated structure is provided between the side wall of the channel 20b and the outer side wall of the functional segment 20, and the corrugated structure extends along the first direction of the functional segment 20. In other words, the channel 20b and the corrugated structure both extend along the first direction, and the aerosol generated by the medium segment 10 can flow through the channel 20b or the corrugated structure to be cooled.

[0101] The corrugated structure 21 b is, for example, located between the side wall of the channel 20 b and the outer side wall of the functional section 20 , and has a wave-shaped cross section.

[0102] A corrugated structure is provided between the side wall of the channel 20b and the outer side wall of the functional section 20. The corrugated structure is evenly distributed around the channel 20b, which is beneficial to achieving the supporting and cooling functions. In addition, it also has the function of adjusting the suction resistance.

[0103] For example, see Figure 3 , Figures 6 to 8 , the functional segment 20 is a tow-type structure. In some embodiments, please refer to Figure 6 and Figure 7 The tow-type structure is, for example, a solid acetate fiber structure, and airflow pores are formed by the gaps between the tows of the solid acetate fiber structure. The aerosol generated by the medium segment 10 can pass through the airflow pores and be inhaled by the user. The size of the airflow pores is smaller than the size of the first airway hole 10a, and has the function of adjusting the suction resistance.

[0104] In addition, when the aerosol passes through the airflow pores, the filament-type structure has a large surface area, which can filter the aerosol, thereby filtering the impurities contained in the aerosol, improving the user experience. At the same time, the resistance of airflow suction can be adjusted through the filament-type structure, and the filament-type structure can prevent the condensate formed after the aerosol condenses from flowing out of the aerosol generating product 100 and causing adverse effects on other devices in the aerosol generating device.

[0105] See also Figure 3 and Figure 8 The tow-type structure is, for example, a hollow acetate fiber structure. The functional segment 20 of the hollow acetate fiber structure can be a hollow structure formed by arranging a plurality of acetate fiber tows side by side. The gaps between the tows of the hollow acetate fiber structure form airflow pores, and the hollow acetate fiber structure has a channel 20b that penetrates both ends of the hollow acetate fiber structure along the first direction. The aerosol generated by the medium segment 10 can pass through the hollow acetate fiber structure through the airflow pores and the channel 20b.

[0106] It should be noted that the air flow pores formed in the solid acetate fiber structure and the hollow acetate fiber structure can be pores in the macroscopic sense; they can also be pores in the microscopic sense, that is, they cannot be directly identified by the naked eye.

[0107] When the functional section 20 is a hollow acetate fiber structure or a solid acetate fiber structure, it is beneficial to achieve the supporting and cooling functions and quickly extract the aerosol.

[0108] See also Figure 2 When the functional section 20 is a hollow structure, such as a hollow paper tube, it is beneficial to achieve the support and cooling functions, forming a larger channel 20b structure with an aerosol buffer function, which is beneficial to increase the total amount of aerosol generated.

[0109] It should be noted that the material of the functional segment 20 is, for example, acetate fiber, PET (polyethylene terephthalate), resin, etc.

[0110] In some embodiments, see Figure 6 and Figure 7 The functional section 20 is a solid structure and is provided with a plurality of micropores.

[0111] Micropores are pores in a microscopic sense.

[0112] The micropores are connected to each other to form micro air channels, and at least part of the micro air channels directly penetrate the two ends of the functional segment 20 along the first direction, so that the air flow can pass through the functional segment 20 through the micro air channels.

[0113] The micro airways formed by the micropores can adjust the inhalation resistance and increase the surface area within the functional segment 20, thereby improving the filtering effect of the functional segment 20; at the same time, it is beneficial to enhance the cooling effect of the aerosol and improve the user experience.

[0114] It can be understood that the micropores may be interconnected, which may be that some of the micropores are interconnected and some of the micropores are not interconnected; or all of the micropores may be interconnected.

[0115] The solid structure of the functional segment 20 is beneficial to improving the structural strength of the functional segment 20 , so that the length of the gas medium segment 10 can be extended as much as possible while the length of the functional segment 20 can be shortened while the length of the aerosol generating article 100 remains unchanged.

[0116] Exemplarily, the dielectric segment 10 and the functional segment 20 are spaced apart from each other to define a cavity 100a.

[0117] That is to say, the medium segment 10 and the functional segment 20 are arranged at intervals, and the cavity 100a is formed by the wrapping layer 30 wrapped around the medium segment 10 and the functional segment 20. It can be understood that by forming the cavity 100a between the medium segment 10 and the functional segment 20, the aerosol generated by heating the medium segment 10 can flow into the cavity 100a. The setting of the cavity 100a can cache the aerosol generated by the medium segment 10, which can be beneficial to the extraction of the aerosol and improve the utilization rate of the medium segment 10. In addition, the setting of the cavity 100a can increase the contact area between the airflow flowing out of the medium segment 10 and the aerosol generating product 100, thereby achieving a better cooling effect; at the same time, it avoids direct contact between the functional segment 20 and the medium segment 10, so as to reduce the probability of aerosol deposition on the end faces of the functional segment 20 and the medium segment 10, and reduce the loss of aerosol during transmission.

[0118] For example, see Figures 1 to 8 The aerosol generating article 100 includes a wrapping layer 30 , which wraps around the circumferential surface of the medium segment 10 and the functional segment 20 .

[0119] The wrapping layer 30 has a certain hardness and can provide a certain degree of protection for the medium segment 10, thereby reducing the surface area of ​​the medium segment 10 directly exposed to the outside world, thereby reducing the probability of the medium segment 10 coming into contact with the air and becoming damp and deteriorating. At the same time, it also reduces the probability of the medium segment 10 coming into contact with other components in the aerosol generating device and causing contamination.

[0120] For example, see Figure 8 The aerosol generating article 100 includes a coating layer 40 coated on the circumferential surface of the medium segment 10. This can better prevent the aerosol from leaking out, and improve the extraction efficiency and utilization rate of the aerosol.

[0121] The coating layer 40 is sandwiched between the wrapping layer 30 and the dielectric segment 10. That is, in addition to the wrapping layer 30 wrapped around the circumferential surface of the dielectric segment 10 and the functional segment 20, there is also a separate internal coating layer 40 in the dielectric segment 10, and the coating layer 40 is sandwiched between the wrapping layer 30 and the dielectric segment 10.

[0122] It should be noted that the medium segment 10 and the coating layer 40 can be an integrated structure. That is, the medium segment 10 and the coating layer 40 are different parts of an integral structure. In this way, on the one hand, the relative position of the medium segment 10 and the coating layer 40 is fixed, which can reduce the probability of the medium segment 10 and the coating layer 40 being separated due to factors such as temperature changes and vibrations during the use of the aerosol generating product 100; on the other hand, the medium segment 10 and the coating layer 40 can be prepared simultaneously, thereby reducing the manufacturing steps and improving the production efficiency.

[0123] For example, in some embodiments, the integrated structure of the medium segment 10 and the coating layer 40 is formed by a co-extrusion process. Compared with the coating layer 40 being wrapped and rolled around the circumferential outside of the medium segment 10, the co-extrusion process is simpler to process, and the functional segment 20 fits more closely with the medium segment 10, resulting in higher energy utilization.

[0124] In other implementations, the medium segment 10 and the coating layer 40 may be formed separately and then composited again.

[0125] In some other embodiments, the dielectric segment 10 and the cladding layer 40 may also be a split structure.

[0126] The specific material of the coating layer 40 is not limited, and may be a functional material, such as aluminum foil, light absorbing material, thermal conductive material, etc.

[0127] Among them, the light absorbing material can be materials containing titanium dioxide, carbon powder, aluminum oxide, iron powder, aluminum and the like.

[0128] Exemplarily, the medium segment 10 and the functional segment 20 are cylinders with the same outer diameter and are coaxially arranged, and the first direction is the axial direction of the medium segment 10 and the functional segment 20. By setting the medium segment 10 and the functional segment 20 to be cylinders with the same outer diameter, and arranging the axial directions of the medium segment 10 and the functional segment 20 in sequence, the structure of the aerosol generating article 100 can be made more compact, and the user's experience is improved. The functional segment structure of the embodiment of the present application is simple, which simplifies the structural design and process flow of the aerosol generating article and reduces the production cost.

[0129] The following is a brief introduction to seven specific embodiments in conjunction with the accompanying drawings.

[0130] First embodiment

[0131] See also Figure 2 In this embodiment, the aerosol generating article 100 includes a medium segment 10 and a functional segment 20 arranged along a first direction. The medium segment 10 and the functional segment 20 are separable structures, that is, the aerosol generating article 100 is a two-segment combined structure composed of the medium segment 10 and the functional segment 20.

[0132] At least one first air passage hole 10a is provided inside the medium segment 10, and the first air passage hole 10a penetrates at least one end of the medium segment 10 along the first direction.

[0133] Among them, the medium segment 10 is an integrated structure containing a macroscopic and / or microscopic porous structure prepared by processes such as extrusion, injection molding or die-casting. The suction resistance of the medium segment 10 mainly depends on its own porosity, that is, the pore size and number of the first airway holes 10a. A functional segment 20 is provided at the upper end. While ensuring cooling and effective extraction of smoke, the suction resistance adjustment function is taken into account, so that the suction resistance of the aerosol generating product 100 meets the design requirements.

[0134] The functional section 20 is a hollow structure, for example, a hollow paper tube.

[0135] A channel 20b is provided inside the functional segment 20, and the channel 20b runs through both ends of the functional segment 20 along the first direction. Preferably, the center line of the channel 20b coincides or substantially coincides with the center axis of the functional segment 20 along the first direction.

[0136] Illustratively, in a plane perpendicular to the first direction of the aerosol generating article 100, the cross-sectional area of ​​the channel 20b is greater than the cross-sectional area of ​​the first airway hole 10a. Alternatively, the hydraulic diameter of the channel 20b is greater than the hydraulic diameter of the first airway hole 10a.

[0137] That is to say, a channel 20b with a larger aperture is provided inside the functional segment 20, and the channel 20b runs through both ends of the functional segment 20 along the first direction. The aerosol generated by the medium segment 10 can flow into the channel 20b for cooling, and is conducive to the aerosol gathering toward the center and being inhaled. The aerosol has good agglomeration properties, which facilitates the aerosol generated by the medium segment 10 to be effectively extracted from the channel 20b of the functional segment 20 for inhalation by the user.

[0138] Specifically, in order to facilitate the aerosol generated by the medium segment 10 when heated to flow directly out of the channel 20b of the functional segment 20 for inhalation by the user, illustratively, at least part of the first airway holes 10a are connected to the channel 20b. That is, when projected on a plane perpendicular to the first direction of the aerosol generating article 100, the channel 20b overlaps at least part of the orthographic projection of the first airway holes 10a.

[0139] It should be noted that the communication between the channel 20b and the first airway hole 10a mentioned here refers to direct communication.

[0140] The medium segment 10 has micropores inside, and the micropores are at least partially connected to each other and connected to the first airway hole 10a. When the medium segment 10 is heated, external airflow such as air can enter the medium segment 10 through the first airway hole 10a to diffuse, and the aerosol generated by the medium of the medium segment 10 surrounding the first airway hole 10a (i.e., the part of the medium segment 10 exposed to the first airway hole 10a) directly enters the first airway hole 10a, and the aerosol generated by other parts of the medium segment 10 (i.e., the part of the medium segment not exposed to the first airway hole 10a) can be collected into the first airway hole 10a through the micropores. In this way, during the suction process, the aerosol collected in the first airway hole 10a flows to the channel 20b of the functional segment 20, and enters the user's mouth after cooling and / filtering.

[0141] Second embodiment

[0142] See also Figure 3In this embodiment, the structure of the aerosol generating product 100 is substantially the same as that of the first embodiment, and the main differences include: in this embodiment, the functional segment 20 is a tow-type structure, and the tow-type structure is, for example, a hollow acetate fiber structure.

[0143] The functional segment 20 of the hollow acetate fiber structure can be a hollow structure formed by arranging a plurality of acetate fiber bundles side by side. The gaps between the bundles of the hollow acetate fiber structure form airflow pores, and the hollow acetate fiber structure has a channel 20b that penetrates both ends of the hollow acetate fiber structure along the first direction. The aerosol generated by the medium segment 10 can pass through the hollow acetate fiber structure through the airflow pores and the channel 20b.

[0144] It should be noted that the air flow pores formed in the solid acetate fiber structure and the hollow acetate fiber structure can be pores in the macroscopic sense; they can also be pores in the microscopic sense, that is, they cannot be directly identified by the naked eye.

[0145] Third embodiment

[0146] See also Figure 4 In this embodiment, the structure of the aerosol generating article 100 is substantially the same as that of the first embodiment, and the main differences include: in this embodiment, the functional section 20 can be an integral structure formed by extrusion.

[0147] The integrated functional segment 20 manufactured by the extrusion molding process has the functions of temperature reduction, temperature resistance and thermal collapse prevention. Extrusion molding, for example, can be a processing method in which a raw material mixture constituting the functional segment 20 is added to an extruder, and the material mixture is pushed forward by the screw through the action between the extruder barrel and the screw, and continuously passes through the mold of the extruder outlet to form various cross-section products or semi-finished products.

[0148] See also Figure 4 The functional segment 20 has at least one second airway hole 20a inside, and the second airway hole 20a runs through at least one end of the functional segment 20 along the first direction.

[0149] The functional segment 20 has at least one second airway hole 20 a inside. The functional segment 20 may have one second airway hole 20 a inside, or may have multiple second airway holes 20 a inside.

[0150] In order to facilitate the aerosol generated by the medium segment 10 being heated to flow directly out of the second airway holes 20a of the functional segment 20 for inhalation by the user, illustratively, at least part of the second airway holes 20a are in communication with the first airway holes 10a. That is, when projected on a plane perpendicular to the first direction of the aerosol generating article 100, at least part of the orthographic projection of the second airway holes 20a and the first airway holes 10a overlap.

[0151] It should be noted that the second airway hole 20a and the first airway hole 10a mentioned here are connected directly.

[0152] For example, on a plane perpendicular to the first direction of the aerosol generating article 100, the cross-sectional area of ​​the second airway hole 20a is smaller than the cross-sectional area of ​​the first airway hole 10a, or the hydraulic diameter of the second airway hole 20a is smaller than or equal to the hydraulic diameter of the first airway hole 10a. In this way, it is beneficial to achieve the functions of cooling and filtering the aerosol and adjusting the inhalation resistance of the aerosol generating article 100.

[0153] In the embodiment of the present application, the hydraulic diameter refers to the ratio of four times the flow cross-sectional area to the circumference.

[0154] It can be understood that the number of the second airway holes 20a is greater than the number of the first airway holes 10a. The second airway holes 20a with a large number and a small cross-sectional area are more conducive to cooling and filtering the aerosol, and adjusting the inhalation resistance of the aerosol generating product 100.

[0155] Fourth embodiment

[0156] See also Figure 5 In this embodiment, the structure of the aerosol generating article 100 is substantially the same as that of the third embodiment, and the main differences include: in this embodiment, the medium segment 10 and the functional segment 20 are spaced apart to define a cavity 100a.

[0157] Fifth embodiment

[0158] See also Figure 6 In this embodiment, the structure of the aerosol generating product 100 is substantially the same as that of the first embodiment, and the main differences include: in this embodiment, the functional segment 20 is a solid structure and is provided with a plurality of micropores, or the functional segment 20 is a tow-type structure, such as a solid acetate fiber structure.

[0159] Micropores are pores in a microscopic sense.

[0160] The micropores are connected to each other to form micro air channels, and at least part of the micro air channels directly penetrate the two ends of the functional segment 20 along the first direction, so that the air flow can pass through the functional segment 20 through the micro air channels.

[0161] The functional segment 20 of the solid acetate fiber structure may be a solid structure formed by arranging a number of acetate fiber bundles side by side. The gaps between the bundles of the solid acetate fiber structure form airflow pores, and the aerosol generated by the medium segment 10 can pass through the solid acetate fiber structure through the airflow pores, which has the effect of adjusting the suction resistance.

[0162] Sixth embodiment

[0163] See also Figure 7In this embodiment, the structure of the aerosol generating article 100 is substantially the same as that of the fifth embodiment, and the main differences include: in this embodiment, the medium segment 10 and the functional segment 20 are spaced apart to define a cavity 100a.

[0164] Seventh embodiment

[0165] See also Figure 8 In this embodiment, the structure of the aerosol generating product 100 is substantially the same as that of the second embodiment, and the main differences include: in this embodiment, the aerosol generating product 100 includes a coating layer 40, and the coating layer 40 is coated on the circumferential outside of the medium segment 10, and the coating layer 40 and the medium segment 10 are an integrated structure.

[0166] 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.

[0167] 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 product, characterized in that The aerosol generating product includes a medium segment and a functional segment. The functional segment is provided at one end of the medium segment along the first direction. The functional segment is used to cool and / or filter the aerosol generated by the medium segment. The medium segment is an integrated structure, and at least one first airway hole is provided inside the medium segment. The first airway hole runs through at least one end of the medium segment along the first direction.

2. The aerosol-generating article according to claim 1, wherein The medium segment and the functional segment are cylinders with the same outer diameter and are coaxially arranged, and the first direction is the axial direction of the medium segment and the functional segment.

3. The aerosol-generating article according to claim 1, wherein The medium segment and the functional segment are separable structures.

4. An aerosol generating article according to any one of claims 1 to 3, characterized in that The functional segment is an integrated structure, and has at least one second airway hole inside the functional segment, and the second airway hole runs through at least one end of the functional segment along the first direction.

5. An aerosol generating article according to claim 4, characterized in that In a plane perpendicular to the first direction of the aerosol generating article, the cross-sectional area of ​​a single second airway hole is smaller than the cross-sectional area of ​​a single first airway hole, or the hydraulic diameter of a single second airway hole is smaller than the hydraulic diameter of a single first airway hole.

6. The aerosol-generating article of claim 4, wherein: At least part of the second airway hole is in communication with the first airway hole.

7. The aerosol-generating article of claim 4, wherein: An airway groove is formed on the circumferential outer surface of the functional segment, and the airway groove runs through two opposite ends of the functional segment along the first direction; and / or the composition of the functional segment is the same as that of the medium segment.

8. The aerosol-generating article of claim 1, wherein: A channel is provided inside the functional segment, and the channel runs through two ends of the functional segment along the first direction; In a plane perpendicular to the first direction of the aerosol generating article, the cross-sectional area of ​​the channel is larger than the cross-sectional area of ​​a single first airway hole, or the hydraulic diameter of the channel is larger than the hydraulic diameter of a single first airway hole.

9. The aerosol-generating article of claim 1, wherein: The functional section is of a solid structure and is provided with a plurality of micropores; or, the medium section and the functional section are spaced apart to define a cavity.

10. The aerosol-generating article of claim 1, wherein: The aerosol generating article comprises a covering layer, wherein the covering layer covers the circumferential exterior of the medium segment, and the covering layer and the medium segment are an integral structure.

11. The aerosol-generating article of claim 1 , wherein: The aerosol-generating article comprises a wrapping layer wrapping around the circumferential exterior of the media segment and the functional segment.

Images