Aerosol generating product and aerosol generating system

Abstract

According to the aerosol generating product and the aerosol generating system provided by the embodiment of the invention, the aerosol generating product comprises the medium section, the functional section and the filtering section which are sequentially arranged in the first direction, and the medium section and the functional section are both of an integrated structure; at least one first air passage hole is formed in the medium section and penetrates through at least one end, in the first direction, of the medium section; at least one second air channel hole is formed in the functional section and penetrates through at least one end, in the first direction, of the functional section. According to the aerosol generating product provided by the embodiment of the invention, the medium section and the functional section are of the integrated structure, so that the high-temperature resistance of the functional section is improved, the structural stability of the functional section is improved, the functional section is not prone to deformation and fusion after being heated, the conditions of miscellaneous gas release, suction resistance influence and airway blockage can be improved to a certain extent, and the aerosol generating effect is improved. Therefore, the use experience of the user is improved. In addition, the surface area of the medium section can be increased through the first air channel holes, heat transfer is facilitated, and the heating efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of smoking products, and in particular to an aerosol generating product and an aerosol generating system. 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 evaporate when heated to generate an aerosol and a functional segment. The functional segment cooperates with the aerosol-generating substrate to achieve the inhalation of the aerosol. The aerosol-generating substrate is heated by an external heat source so that it is heated just enough to emit a fragrance. The aerosol-generating substrate does not burn, but instead releases the aerosol by loading an atomizer and heating it at high temperature to form smoke when used.

[0003] In the prior art, the functional segment is made of materials that are prone to phase change or deformation, such as hollow paper tubes (including paper tubes with inner / outer aluminum foil, coated film, etc.), corrugated tubes, silicone parts, hollow acetate fiber structures, etc. When the functional segment is deformed and melted by heat, it will block part of the airway, release miscellaneous gases, affect the sensory organs, and affect the suction resistance, thereby reducing the user's experience. Summary of the invention

[0004] In view of this, the present application hopes to provide an aerosol generating product and an aerosol generating system that can improve the user experience.

[0005] To achieve the above-mentioned object, an embodiment of the present application provides an aerosol generating product, the aerosol generating product comprising a medium segment, a functional segment and a filter segment arranged in sequence along a first direction, the medium segment and the functional segment are both an integrated structure;

[0006] 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; at least one second airway hole is provided inside the functional segment, and the second airway hole passes through at least one end of the functional segment along the first direction.

[0007] In one embodiment, the medium segment, the functional segment and the filter segment are separable structures.

[0008] In one embodiment, in a plane perpendicular to the first direction of the aerosol generating article, the sum of the cross-sectional areas of all the second airway holes is greater than or equal to the sum of the cross-sectional areas of all the first airway holes.

[0009] In one embodiment, in a plane perpendicular to the first direction of the aerosol-generating article, a cross-sectional area of ​​a single second airway hole is greater than or equal to a cross-sectional area of ​​a single first airway hole.

[0010] In one embodiment, the hydraulic diameter of a single second airway hole is greater than or equal to the hydraulic diameter of a single first airway hole.

[0011] In one embodiment, the number of the second airway holes is less than or equal to the number of the first airway holes.

[0012] In one embodiment, in a plane perpendicular to the first direction of the aerosol generating article, the sum of the cross-sectional areas of all the second airway holes is smaller than the sum of the cross-sectional areas of all the first airway holes.

[0013] In one embodiment, on 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.

[0014] In one embodiment, the number of the second airway holes is greater than the number of the first airway holes.

[0015] In one embodiment, on a plane perpendicular to the first direction of the aerosol generating article, the cross-sectional shape of the second airway hole is at least one of a circle, an ellipse, a racetrack, a polygon and a sector.

[0016] In one embodiment, the interior of the aerosol-generating article is provided with at least one cavity.

[0017] In one embodiment, the functional section is a supporting section or a cooling section.

[0018] In one embodiment, the medium segment and the functional segment are spaced apart to define the cavity.

[0019] In one embodiment, the filtering section and the functional section are spaced apart to define the cavity.

[0020] In one embodiment, the cavity is provided at least at one end of the medium segment away from the functional segment.

[0021] In one embodiment, the cavity is provided at least at one end of the filter section away from the functional section.

[0022] In one embodiment, two ends of the functional segment are in contact with the medium segment and the filter segment respectively.

[0023] In one embodiment, a central air duct is provided inside the functional segment, and the central air duct runs through both ends of the functional segment along the first direction. There are multiple second air duct holes, and each of the second air duct holes is arranged at intervals on the circumferential side of the central air duct; on a plane perpendicular to the first direction of the aerosol generating product, the cross-sectional area of ​​the central air duct is larger than the cross-sectional area of ​​the second air duct holes.

[0024] In one embodiment, there are a plurality of second airway holes, and each of the second airway holes is formed in the functional section in a uniformly distributed manner.

[0025] In one embodiment, the medium segment, the functional segment and the filter segment are coaxially arranged cylinders with the same outer diameter, and the first direction is the axial direction of the medium segment, the functional segment and the filter segment.

[0026] In one embodiment, the filter segment is a hollow acetate fiber structure or a solid acetate fiber structure.

[0027] An embodiment of the present invention further provides an aerosol generating system, comprising an aerosol generating device and the aerosol generating product of any one of the aforementioned embodiments, wherein the aerosol generating device comprises a heating element, and the heating element is used to heat the medium segment to generate an aerosol.

[0028] An embodiment of the present application provides an aerosol generating product, which includes a medium segment, a functional segment and a filter segment arranged in sequence along a first direction. The medium segment generates aerosol when heated, the functional segment mainly functions as support and cooling, and the filter segment is used to filter the aerosol flowing through the functional segment.

[0029] The medium section and functional section of the aerosol generating product provided in the embodiment of the present application are both one-piece structures, and the functional section is an one-piece structure provided with a second airway hole, for example, a functional section of an one-piece structure formed by a combination of any one or several materials in a polymer such as calcium carbonate, alumina, diatomaceous earth, calcined kaolin, food-grade silica gel, microcrystalline cellulose, konjac gum, starch, plant polysaccharides, LDPE (low-density polyethylene), PP (polypropylene), TPE (thermoplastic elastomer), PLA (polylactic acid), TPE-modified PP and TPE-modified PE (polyethylene) is used to improve the high temperature resistance of the functional section, thereby improving the structural stability of the functional section, and it is not easy to deform and melt after being heated, and it can improve the release of impurities to a certain extent, affect the suction resistance, and block the airway, thereby improving the user's experience. In addition, the first airway hole can increase the surface area of ​​the medium section, facilitate heat transfer, and improve heating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1This is a schematic diagram of the structure of an aerosol generating product according to an embodiment of the present application;

[0031] 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;

[0032] Figure 3 is a schematic cross-sectional view of an aerosol generating article in a second embodiment of the present application;

[0033] Figure 4 is a schematic cross-sectional view of an aerosol generating article in a third embodiment of the present application;

[0034] Figure 5 is a schematic cross-sectional view of an aerosol generating article in a fourth embodiment of the present application;

[0035] Figure 6 is a schematic cross-sectional view of an aerosol generating article in a fifth embodiment of the present application;

[0036] Figure 7 is a schematic cross-sectional view of an aerosol generating article in a sixth embodiment of the present application;

[0037] Figure 8 is a schematic cross-sectional view of an aerosol generating article in a seventh embodiment of the present application;

[0038] Fig. 9 is a schematic cross-sectional view of an aerosol generating article in an eighth embodiment of the present application;

[0039] Fig.10 is a schematic cross-sectional view of an aerosol generating article in a ninth embodiment of the present application;

[0040] Fig.11 is a schematic cross-sectional view of an aerosol generating article in the tenth embodiment of the present application;

[0041] Fig.12 is a schematic cross-sectional view of an aerosol generating article in the eleventh embodiment of the present application;

[0042] Fig.13 is a schematic cross-sectional view of an aerosol generating article in the twelfth embodiment of the present application;

[0043] Fig.14 is a schematic cross-sectional view of an aerosol generating article in the thirteenth embodiment of the present application;

[0044] Fig.15 is a schematic cross-sectional view of an aerosol generating article in the fourteenth embodiment of the present application;

[0045] Fig.16 for Figure 4The structural diagram of the functional segments shown.

[0046] Description of Reference Numerals

[0047] 10. Medium segment; 10a. First airway hole; 20. Functional segment; 20a. Second airway hole; 20b. Central airway; 30. Filter segment; 40. Wrapping layer; 100. Aerosol generating product; 100a. Cavity. DETAILED DESCRIPTION

[0048] 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.

[0049] 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.

[0050] The present application embodiment provides an aerosol generating product, please refer to Figures 1 to 16 , comprising a medium segment 10, a functional segment 20 and a filter segment 30 arranged in sequence along a first direction. That is, the functional segment 20 is located between the filter segment 30 and the medium segment 10, the functional segment 20 is used to support and / or cool down, and improve the "hot mouth" phenomenon when the user inhales the aerosol, and the filter segment 30 is used to filter the cooled aerosol.

[0051] Specifically, see Figure 2 and Figure 3 The two ends of the functional segment 20 along the first direction are in contact with the medium segment 10 and the filter segment 30 respectively. At this time, the functional segment 20 can support the medium segment 10 and the filter segment 30, thereby increasing the overall strength of the aerosol generating product. At the same time, since the functional segment 20 has the second airway hole 20a inside, it can play a role in adjusting the suction resistance. In addition, the aerosol generated by the medium segment 10 can reduce the temperature of the aerosol after passing through a certain length of the functional segment 20. That is to say, in this embodiment, the functional segment 20 has the functions of supporting, cooling and adjusting the suction resistance at the same time.

[0052] Please refer to Figure 8 , the functional segment 20 is spaced apart from the medium segment 10 and the filter segment 30. At this time, the main function of the functional segment is to cool down and adjust the suction resistance. It can be understood that in other embodiments, the functional segment 20 can also be mainly used to support and adjust the suction resistance, and the present invention is not limited to this.

[0053] It should be noted that the filter section 30 is used to filter the aerosol. It is understandable that since the aerosol flows through the filter section 30, the filter section 30 also has the function of further cooling the aerosol.

[0054] It should be noted that 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.

[0055] 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.

[0056] The aerosol-generating article 100 is intended for use with an aerosol-generating device.

[0057] The medium segment 10 is used to generate an aerosol when heated for inhalation by a user.

[0058] 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.

[0059] Exemplarily, the medium segment 10, the functional segment 20 and the filter segment 30 are separable structures, and the three are not connected together by mechanical, physical structures or adhesives, but two of them can be in contact. The medium segment 10, the functional segment 20 and the filter segment 30 are a combined structure, so different medium segments 10 and different functional segments 20 can be reasonably matched to meet customer needs for different suction resistances.

[0060] The medium segment 10 and the functional segment 20 are both one-piece structures. In one embodiment, the medium segment 10 is an one-piece structure formed by extrusion, and the functional segment 20 is also an one-piece structure formed by extrusion. That is to say, the medium segment 10 and the functional segment 20 are manufactured using the same processing technology. Compared with the prior art in which the medium segment and the filter segment are manufactured using different processing technologies, the medium segment and the filter segment are manufactured using the same processing technology, thereby improving the production efficiency of the aerosol generating product.

[0061] In other embodiments, the medium segment 10 and the filter segment may also be an integral structure formed by injection molding, die casting or other processes.

[0062] For example, see Figures 2 to 15At 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. That is, the first air passage hole 10a extends along the first direction of the medium segment 10.

[0063] It should be noted that the number of the first airway holes 10a is not limited, and may be one or more.

[0064] It should be noted that the “multiple” mentioned in the embodiments of the present application refers to a number of two or more.

[0065] The first air passage hole 10a penetrates at least one end of the medium segment 10 along the first direction, which means that the first air passage hole 10a may penetrate the opposite ends of the medium segment 10 along the first direction (see Figures 2 to 15 ), the airflow can flow from one end of the medium segment 10 along the first direction to the other end of the medium segment 10 along the first direction through the first airway hole 10a.

[0066] Of course, one end of the first airway hole 10a may penetrate the end surface of the medium segment 10 along the first direction, and the other end of the first airway hole 10a may be a blind end. Among them, each first airway hole 10a may penetrate the same end of the medium segment 10 along the first direction. In other embodiments, part of the first airway holes 10a may penetrate one end of the medium segment 10 along the first direction, and another part of the first airway holes 10a may penetrate the other end of the medium segment 10 along the first direction.

[0067] It can be understood that, compared with the first airway hole 10a penetrating one end of the medium segment 10 along the first direction, the first airway hole 10a penetrating both ends of the medium segment 10 along the first direction is more conducive to reducing the suction resistance of the user.

[0068] 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.

[0069] 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, and 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 can be connected to each other. For example, in an embodiment in which the medium segment 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.

[0070] 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 airway hole) 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.

[0071] It should be noted that the specific type of the functional section 20 is not limited here, as long as it can play a supporting and / or cooling role. Exemplarily, the functional section 20 is a supporting section or a cooling section.

[0072] For example, see Figures 2 to 15 At least one second airway hole 20a is provided inside the functional segment 20, and the second airway hole 20a penetrates at least one end 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.

[0073] By providing the second airway hole 20a, when the aerosol passes through the functional section 20, it will flow through the second airway hole 20a, which is beneficial to cooling the aerosol. At the same time, by controlling the design parameters of the second airway hole 20a, it is convenient to adjust the suction resistance.

[0074] It should be noted that the number of the second airway holes 20a is not limited, and can be one or more.

[0075] The second airway hole 20a penetrates at least one end of the functional segment 20 along the first direction, which means that the second airway hole 20a may penetrate the opposite ends of the functional segment 20 along the first direction (see Figures 2 to 15 ), the airflow can flow from one end of the functional segment 20 along the first direction to the other end of the functional segment 20 along the first direction through the second airway hole 20a.

[0076] Of course, one end of the second airway hole 20a may penetrate the end surface of the functional segment 20 along the first direction, and the other end of the second airway hole 20a may be a blind end. Among them, each second airway hole 20a may penetrate the same end of the functional segment 20 along the first direction. In other embodiments, part of the second airway holes 20a may penetrate one end of the functional segment 20 along the first direction, and another part of the second airway holes 20a may penetrate the other end of the functional segment 20 along the first direction.

[0077] It can be understood that, compared with the second airway hole 20a penetrating one end of the functional segment 20 along the first direction, the second airway hole 20a penetrating both ends of the functional segment 20 along the first direction is more conducive to reducing the suction resistance of the user.

[0078] It should be noted that micropores are also formed inside the extruded functional segment 20, that is, the gaps between the components of the functional segment 20 constitute micropores, and the micropores are connected to form micro airways connected to the second airway holes 20a. When the aerosol passes through the functional segment 20, part of the aerosol will flow through the second airway holes 20a, and the other part of the aerosol will flow through the micro airways. When flowing through the micro airways, the aerosol stays for a long time, which is conducive to the cooling of the aerosol. At the same time, the flow resistance of the aerosol when flowing through the micro airways is large, which can increase the inhalation resistance, that is, it is conducive to adjusting the size of the inhalation resistance through the functional segment 20.

[0079] It should be noted that the above-mentioned 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 and the second airway hole 20a is much larger than the cross-sectional area of ​​the micropores. Exemplarily, the cross-sectional area of ​​the first airway hole 10a and the second airway hole 20a is at least 20 times the cross-sectional area of ​​the micropores. When the size of the micropores remains roughly unchanged, when it is less than 20 times, the size of the first airway hole 10a and the second airway hole 20a will be too small, and the aerosol will not be easily released from the inner wall of the first airway hole 10a into the first airway hole 10a, and it is not easy to flow from the first airway hole 10a to the second airway hole 20a, and it will cause the user's suction resistance to be large, and the user's suction experience will decrease. Therefore, in this embodiment, when the cross-sectional area of ​​the first airway hole 10a and the second airway hole 20a is greater than or equal to 20 times the cross-sectional area of ​​the micropore, the rate of aerosol release from the inner wall of the first airway hole 10a and the flow rate in the second airway hole 20a can be guaranteed, and the inhalation resistance can also be reduced, thereby improving the user's inhalation experience.

[0080] In some embodiments, the cross-sectional area of ​​the first airway hole 10a and the second airway hole 20a is 20 to 60,000 times the cross-sectional area of ​​the micropore. If the cross-sectional area of ​​the first airway hole 10a and the second airway hole 20a exceeds 60,000 times the cross-sectional area of ​​the micropore, the area of ​​the first airway hole 10a and the second airway hole 20a will be too large, the overall quality of the generated aerosol will decrease, the strength of the functional segment 20 will also decrease, the utilization rate of the aerosol generation substrate will be low, and the heating rate will be large, and the aerosol will be easily released from the micropore into the environment.

[0081] Exemplarily, the cross-sectional area of ​​the first airway hole 10a and the second airway hole 20a is 100 to 40,000 times the cross-sectional area of ​​the micropore.

[0082] In some embodiments, the aperture of the first airway hole 10a ranges from 0.05 mm (millimeter) to 6 mm. When the diameter of the airway hole 10a is less than 0.05 mm, the processing cost of the medium segment 10 is high and it is easy to have problems such as large suction resistance and low medium utilization. When the diameter of the first airway hole 10a is greater than 6 mm, the cross-sectional area is large, the flow rate of the airflow is smaller under the same volume in the suction state, and the aerosol is prone to deposition, resulting in low aerosol utilization.

[0083] The specific value of the aperture of the first airway hole 10a is not limited, for example, 0.05mm, 0.1mm, 0.5mm, 1mm, 2mm, 3mm, 5mm, 6mm, etc.

[0084] It should be noted that the apertures of the first airway hole 10a and the second airway hole 20a refer to their equivalent diameters.

[0085] The equivalent diameter refers to the diameter of a circle with the same cross-sectional area as the object being measured.

[0086] 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.

[0087] The functional segment 20 is an integral structure formed by extrusion, and at least one second airway hole 20a is provided inside the functional segment 20. The second airway hole 20a penetrates at least one end of the functional segment 20 along the first direction. The functional segment 20 with a porous structure formed in this way has the functions of supporting, cooling and adjusting the suction resistance.

[0088] Exemplary, the medium section 10 is a particle combination, also referred to as a powder combination, a kind of reconstituted tobacco medium, for example, a reconstituted tobacco medium containing components such as smoke-generating agent and tobacco. The medium section 10 is an integrated structure, for example, an integrated structure that can be formed by an extrusion process. Wherein, extrusion molding refers to adding a raw material mixture into an extruder, and the material is pushed forward by the screw through the action between the extruder barrel and the screw, and is continuously made into a processing method of various cross-section products or semi-finished products through the mold of the extruder discharge port. The medium structure formed by extrusion molding is strip-shaped. In this way, after the medium section 10 is heated and pumped or stops being heated, it is an integrated medium, and it is not easy to disintegrate and fall, and the problem that the thin sheet, filament or scattered particle medium section 10 in the prior art appears, such as the problem of thin sheet loosening, filamentous component, particle component falling off, and being difficult to clean, and the problem of uneven components.

[0089] For example, see Figures 1 to 15 The aerosol generating article 100 includes a wrapping layer 40 , which wraps around the circumferential outside of the medium segment 10 , the functional segment 20 and the filter segment 30 .

[0090] The wrapping layer 40 can provide some protection for the medium segment 10, reducing the surface area of ​​the medium segment 10 directly exposed to the outside, thereby reducing the probability of the medium segment 10 becoming damp and deteriorating due to contact with the air, and at the same time, reducing the probability of the medium segment 10 being contaminated by contact with other components in the aerosol generating device.

[0091] It should be noted that the medium segment 10 and the wrapping layer 40 can be an integrated structure. That is, the medium segment 10 and the wrapping 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 wrapping layer 40 is fixed, which can reduce the probability of the medium segment 10 and the wrapping layer 40 being separated due to temperature changes, vibrations and other factors during the use of the aerosol generating product 100; on the other hand, the medium segment 10 and the wrapping layer 40 can be prepared simultaneously, thereby reducing the manufacturing steps and improving the production efficiency.

[0092] For example, the integral structure of the media portion and the wrap layer 40 is formed by a co-extrusion process.

[0093] Of course, the medium segment 10 and the wrapping layer 40 may also be a split structure.

[0094] An embodiment of the present invention further provides an aerosol generating system, including an aerosol generating device and an aerosol generating product provided in the embodiment of the present application. The aerosol generating device includes a heating element (not shown), which is used to heat the medium segment 10 to generate an aerosol.

[0095] 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.

[0096] 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.

[0097] 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.

[0098] An embodiment of the present application provides an aerosol generating product. The aerosol generating product 100 includes a medium segment 10, a functional segment 20 and a filter segment 30 arranged in sequence along a first direction. The medium segment 10 will generate an aerosol when heated. The functional segment 20 mainly functions as support and / or cooling. The filter segment 30 is used to filter the aerosol flowing through the functional segment 20. It can be understood that since the aerosol flows through the filter segment, the filter segment also has the function of further cooling the aerosol.

[0099] The medium segment 10 and the functional segment 20 of the aerosol generating product 100 provided in the embodiment of the present application are both one-piece structures, and the functional segment 20 is an one-piece structure provided with a second airway hole, for example, the functional segment 20 of the one-piece structure formed by the combination of any one or several materials of inorganic materials such as calcium carbonate, alumina, diatomaceous earth, calcined kaolin, food-grade silica gel, microcrystalline cellulose, konjac gum, starch, plant polysaccharides, LDPE (low-density polyethylene), PP (polypropylene), TPE (thermoplastic elastomer), PLA (polylactic acid), TPE-modified PP and TPE-modified PE (polyethylene) and the like polymers is used, and the high temperature resistance of the functional segment 20 is improved, thereby improving the structural stability of the functional segment 20, and it is not easy to deform and melt after being heated, and it can improve the release of impurities to a certain extent, affect the suction resistance, and block the airway, thereby improving the user's experience. In addition, the first airway hole can increase the surface area of ​​the medium segment, facilitate heat transfer, and improve heating efficiency.

[0100] In addition, compared with the prior art in which the medium segment 10 and the functional segment 20 are produced and manufactured using different processing techniques, the medium segment 10 and the functional segment 20 are produced and manufactured using the same processing technique, thereby improving the production efficiency of the aerosol generating product 100; furthermore, the medium segment 10 and the functional segment 20 are separable structures, and different medium segments 10 and different functional segments 20 can be reasonably matched to meet customer needs for different suction resistances and cooling, thereby further improving the user experience.

[0101] The specific components of the medium segment 10 are not limited herein. For example, in one embodiment, the medium segment 10 may include plant components, auxiliary components, smoke-generating agent components, adhesive components, and flavor components.

[0102] 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.

[0103] 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.

[0104] 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.

[0105] 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.

[0106] 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.

[0107] 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.

[0108] For example, in some embodiments, the composition of the functional segment 20 is the same as that of the media segment 10 .

[0109] In other embodiments, the composition of the functional segment 20 is different from that of the medium segment 10. Specifically, the functional segment 20 of an integrated structure can be formed by extrusion molding using any one or a combination of inorganic materials (calcium carbonate, alumina, diatomaceous earth, calcined kaolin, etc.), polymer materials (food grade silica gel, microcrystalline cellulose, konjac gum, starch, plant polysaccharides, etc.), and polymers (LDPE, PP, TPE, PLA, TPE modified PP, and TPE modified PE, etc.).

[0110] It should be noted that the functional segment 20 has the function of adjusting the suction resistance. Specifically, the functional segment 20 can adjust the suction resistance by controlling parameters such as the number of the second airway holes 20a of the functional segment 20 and the hydraulic diameter of the second airway holes 20a.

[0111] In order to satisfy the user's demands for sensory characteristics such as natural and smooth inhalation, smoke permeability, and comfort during the inhalation process and improve the user's use experience, it is necessary to control the inhalation resistance range of the aerosol generating product 100. It should be noted that the inhalation resistance is positively correlated with the flow resistance of the aerosol. The smaller the flow resistance of the aerosol in the aerosol generating product 100, the smaller the inhalation resistance experienced by the user; the greater the flow resistance of the aerosol in the aerosol generating product 100, the greater the inhalation resistance experienced by the user.

[0112] Exemplarily, the aerosol-generating article 100 has a draw resistance in the range of 500 Pa-1100 Pa. For example, 500 Pa, 550 Pa, 600 Pa, 650 Pa, 700 Pa, 750 Pa, 800 Pa, 850 Pa, 900 Pa, 950 Pa, 1000 Pa, 1050 Pa, 1100 Pa, etc.

[0113] When the suction resistance range of the aerosol generating product 100 is greater than 1100 Pa, the flow resistance of the aerosol in the aerosol generating product 100 is greater, the first airway hole 10a corresponding to the medium segment 10 and the second airway hole 20a corresponding to the functional segment 20 are relatively smaller, which will significantly increase the difficulty of the molding process. The sizes of the first airway hole 10a and the second airway hole 20a are not easy to control, which will increase the defective rate of the medium segment 10 and the functional segment 20.

[0114] When the suction resistance range of the aerosol generating product 100 is less than 500Pa, the number of the first airway holes 10a corresponding to the medium segment 10 and the second airway holes 20a corresponding to the functional segment 20 is small, the medium segment 10 is prone to burnt, and the medium segment 10 is prone to uneven aerosol release during the heating process (for example, the first two puffs release a large amount of aerosol, and the last few puffs release a small amount of aerosol), which affects the user's puffing experience.

[0115] When the suction resistance of the aerosol generating product 100 is within the range of 500Pa-1100Pa, the flow resistance of the medium segment 10 is relatively small (that is, the suction resistance is relatively small), and the flow rate of the aerosol is appropriate. The aerosol inside the medium segment 10 is easy to extract, the aerosol release is more uniform and the utilization rate is higher. The medium segment 10 is not prone to burning, the user experience is relatively high, and it is also easy to process and manufacture.

[0116] For example, in some implementations, see Figures 1 to 4 , on a plane perpendicular to the first direction of the aerosol generating article 100, the sum of the cross-sectional areas of all the second airway holes 20a is greater than or equal to the sum of the cross-sectional areas of all the first airway holes 10a. That is, the porosity of the functional segment 20 is greater than or equal to the porosity of the medium segment 10, that is, the suction resistance of the functional segment 20 is less than or equal to the suction resistance of the medium segment 10. In this way, the residence time of the aerosol flowing through the functional segment 20 and the contact area between the aerosol and the functional segment 20 can be increased, thereby improving the cooling effect.

[0117] For example, in some implementations, see Figures 1 to 4 , in 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 greater than or equal to the cross-sectional area of ​​a single first airway hole 10a. In other words, the hydraulic diameter of a single second airway hole 20a is greater than or equal to the hydraulic diameter of a single first airway hole 10a.

[0118] 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.

[0119] It is understandable that when the aerosol flows from the first airway hole 10a of the medium segment 10 to the second airway hole 20a of the functional segment 20, the airflow channel becomes larger, increasing the residence time of the aerosol, and the functional segment 20 is no longer heated, thereby achieving the effect of reducing the temperature of the aerosol. In addition, since the hydraulic diameter of a single second airway hole 20a is greater than or equal to the hydraulic diameter of a single first airway hole 10a, when the aerosol flows from the first airway hole 10a to the second airway hole 20a, the flow resistance of the aerosol is reduced, which is beneficial to the extraction of the aerosol. Furthermore, the functional segment 20 also has micropores. When the aerosol flows through the functional segment 20, part of the aerosol can flow through the micropores, further increasing the residence time of the aerosol, thereby further facilitating the cooling of the aerosol.

[0120] It is understandable that a small number of second airway holes 20a with a large hydraulic diameter is more conducive to cooling the aerosol. On a plane perpendicular to the first direction of the aerosol generating article 100, since the cross-sections of the functional segment 20 and the medium segment 10 are consistent, and the hydraulic diameter of a single second airway hole 20a is greater than the hydraulic diameter of a single first airway hole 10a, the number of second airway holes 20a should be less than the number of first airway holes 10a. Exemplarily, the number of second airway holes 20a is less than or equal to the number of first airway holes 10a.

[0121] For example, in some other implementations, please refer to Figure 5 , on a plane perpendicular to the first direction of the aerosol generating product 100, the sum of the cross-sectional areas of all the second airway holes 20a is less than the sum of the cross-sectional areas of all the first airway holes 10a. That is, the porosity of the functional segment 20 is less than the porosity of the medium segment 10, that is, the suction resistance of the functional segment 20 is greater than the suction resistance of the medium segment 10. In this way, when the aerosol flows from the medium segment 10 to the functional segment 20, the suction resistance of the aerosol generating product 100 can be increased, and the aerosol inside the medium segment 10 can be ensured to be easily extracted, the aerosol release is more uniform and the utilization rate is higher, and the medium segment 10 is not prone to burnt phenomenon. At the same time, it can meet the user's sensory characteristics such as natural and smooth suction, smoke permeability, and comfort during the suction process.

[0122] For example, in some other implementations, please refer to Figure 5 , in 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. In other words, the hydraulic diameter of a single second airway hole 20a is smaller than the hydraulic diameter of a single first airway hole 10a.

[0123] It is understandable that when the aerosol flows from the first airway hole 10a of the medium segment 10 to the second airway hole 20a of the functional segment 20, the airflow channel becomes smaller, that is, the suction resistance of the functional segment 20 is greater than the suction resistance of the medium segment 10, which is conducive to increasing the suction resistance of the aerosol generating article 100. Furthermore, the functional segment 20 also has micropores, and when the aerosol flows through the functional segment 20, part of the aerosol can flow through the micropores, further increasing the flow resistance of the aerosol, which is further conducive to increasing the suction resistance of the aerosol generating article 100.

[0124] It is understandable that a large number of second airway holes 20a with a small hydraulic diameter is more conducive to the increase of the draw resistance of the functional segment 20 and the aerosol generating article 100. On a plane perpendicular to the first direction of the aerosol generating article 100, since the cross-section of the functional segment 20 is consistent with that of the medium segment 10, and the hydraulic diameter of the second airway hole 20a is smaller than the hydraulic diameter of the first airway hole 10a, the number of the second airway holes 20a should be greater than the number of the first airway holes 10a. Exemplarily, in other embodiments, the number of the second airway holes 20a is greater than the number of the first airway holes 10a.

[0125] 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 aerosol generating article 100, the cross-sectional shape of the second airway hole 20a is circular (e.g. Fig.12 and Fig.13 As shown in the figure), at least one of an ellipse, a racetrack, a polygon and a fan, wherein the polygon includes a regular or irregular polygon (such as Fig.16 The long strip shown in is an irregular polygon).

[0126] 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.

[0127] For example, see Figures 6 to 15 At least one cavity 100a is provided inside the aerosol generating article 100. It should be noted that the number of cavities 100a is not limited here, that is, the number of cavities 100a can be one or more.

[0128] It should be noted that the specific position and formation method of the cavity 100a are not limited herein. For example, it can be formed between any two of the medium segment 10, the functional segment 20 and the filter segment 30, or it can be formed at the end of the medium segment 10 away from the functional segment 20, or it can be formed at the end of the filter segment 30 away from the functional segment 20.

[0129] By arranging the combined structure of the cavities 100a at different positions, the flow path of the aerosol can be increased, the airflow channel can be enlarged, and by utilizing technical principles such as heat exchange and combining the cavity 100a structure as needed, beneficial effects can be achieved in improving aerosol formation, caching and cooling.

[0130] For example, in some implementations, see Figure 6 and Fig.11 , the medium segment 10 and the functional segment 20 are spaced apart to define a cavity 100a. That is to say, the medium segment 10 and the functional segment 20 are spaced apart, and the cavity 100a is formed by the wrapping layer 40 wrapped around the peripheral side of 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 buffer 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.

[0131] For example, in some implementations, see Figure 7 and Fig.12 , the functional segment 20 and the filter segment 30 are spaced apart to define a cavity 100a. That is to say, the functional segment 20 and the filter segment 30 are spaced apart, and the cavity 100a is formed by the wrapping layer 40 wrapped around the functional segment 20 and the peripheral side of the functional segment 20. It can be understood that by forming the cavity 100a between the functional segment 20 and the filter segment 30, the aerosol generated by the heating of the medium segment 10 can flow to the functional segment 20, and then flow to the cavity 100a for buffering. Thus, in the process of transporting the aerosol, the flow path of the aerosol is increased, thereby having a rapid cooling effect. At the same time, the setting of the cavity 100a can also buffer the aerosol generated by the medium segment 10.

[0132] It should be noted that in some other embodiments, please refer to Figure 8 and Fig.13 A cavity 100a is provided between the medium segment 10 and the functional segment 20, and between the functional segment 20 and the filter segment 30. The cavity 100a provided in this embodiment has the functions of aerosol buffering and cooling, and is conducive to the rapid extraction of aerosol. And under the premise of giving priority to the aerosol buffering function, cavities 100a are provided between the medium segment 10 and the functional segment 20, and between the functional segments 20 and the functional segments 20, that is, through the alternating combination of the cavity 100a structure, the aerosol extraction rate and buffering function are further improved.

[0133] For example, in some implementations, see Fig.10 and Fig.15 The medium segment 10 is provided with a cavity 100a at least at one end away from the functional segment 20. That is, at least the far lip end of the medium segment 10 is provided with a cavity 100a, which can store air, increase the contact area between the medium segment 10 and the air, facilitate the natural diffusion of the aerosol formed by the medium segment 10 being heated, and facilitate the extraction of the aerosol.

[0134] The distal lip end of the media segment 10 refers to the end of the media segment 10 that is away from the user when the user uses the aerosol-generating article 100 .

[0135] For example, in some implementations, see Fig. 9 and Fig.14 , the filter section 30 is provided with a cavity 100a at least at one end away from the functional section 20. That is, at least the cavity 100a is provided at the near-lip end of the filter section 30, and the area of ​​the cavity 100a at the near-lip end of the filter section 30 is increased to reduce the heat conduction efficiency. As a result, after the aerosol flows out from the inlet lip end of the filter section 30, it can quickly contact with the air, that is, the heat conduction efficiency of the air is relatively low, and the aerosol meets the cold air outside to achieve rapid heat exchange and cooling, thereby improving the "hot" problem of the smoke and facilitating the aerosol extraction and cooling function.

[0136] For example, in some implementations, see Figure 7 and Figure 8 The functional segment 20 is provided with a central airway 20b inside, the central airway 20b runs through both ends of the functional segment 20 along the first direction, and the number of second airway holes 20a is multiple, and each second airway hole 20a is arranged at intervals around the central airway 20b. In other words, the central airway 20b and the second airway holes 20a both extend along the first direction, and the aerosol generated by the medium segment 10 can flow through the central airway 20b and the second airway holes 20a to be cooled.

[0137] On a plane perpendicular to the first direction of the aerosol generating article 100, the cross-sectional area of ​​the central airway 20b is greater than the cross-sectional area of ​​the second airway holes 20a. That is, the central airway 20b is arranged at the center of the functional section 20, the aperture of the central airway 20b is larger, and the aperture of the peripheral second airway holes 20a is smaller, which is conducive to the aerosol gathering to the center and being sucked, and the aerosol has better agglomeration.

[0138] Exemplarily, the number of the second airway holes 20a is multiple, and each second airway hole 20a is formed in a uniformly distributed form in the functional section 20. In other words, the apertures of the second airway holes 20a are consistent, and the uniform distribution of the second airway holes 20a is conducive to the smoothness, uniformity and cooling efficiency of the aerosol flow, and improves the user's inhalation experience.

[0139] It should be noted that the second airway holes 20a are in a "uniformly distributed" form, including that each second airway hole 20a is distributed in a matrix or concentric circles. When distributed in concentric circles, the spacing between each ring is equal, that is, the arrangement of each second airway hole 20a itself is uniform. It is understandable that each second airway hole 20a may not be uniform in the cross section of the functional segment 20, that is, each second airway hole 20a is evenly distributed, but each second airway hole 20a does not evenly divide the entire functional segment 20. For example, when the cross section of the functional segment 20 is circular, each second airway hole 20a distributed in a matrix is ​​not evenly distributed in the circular cross section.

[0140] Of course, in other embodiments, the second airway holes 20a are formed in the functional section 20 in a non-uniform distribution. For example, the apertures of the second airway holes 20a are different, and the aperture ranges show a trend of change in a certain direction, such as coaxial circular ring distribution, and the spacing between the circular rings can be equal or unequal.

[0141] Exemplarily, the medium segment 10, the functional segment 20 and the filter segment 30 are cylinders with the same outer diameter and coaxially arranged, and the first direction is the axial direction of the medium segment 10, the functional segment 20 and the filter segment 30. By configuring the medium segment 10, the functional segment 20 and the filter segment 30 to be cylinders with the same outer diameter and arranging them in sequence along the axial direction of the medium segment 10, the functional segment 20 and the filter segment 30, the structure of the aerosol generating article 100 can be made more compact, thereby improving the user experience.

[0142] Nine specific embodiments are briefly introduced below with reference to the accompanying drawings.

[0143] First embodiment

[0144] See also Figure 1 to Figure 2 In this embodiment, the aerosol generating article 100 comprises a medium segment 10, a functional segment 20 and a filter segment 30 arranged in sequence along a first direction, and the medium segment 10, the functional segment 20 and the filter segment 30 are separable structures, that is, the aerosol generating article 100 is a three-section combined structure composed of the medium segment 10, the functional segment 20 and the functional segment 20 in sequence. Both ends of the functional segment 20 are in contact with the medium segment 10 and the filter segment 30 respectively.

[0145] The medium segment 10 and the functional segment 20 are both integral structures formed by extrusion. The medium segment 10 and the functional segment 20 are manufactured using the same processing technology, thereby improving the production efficiency of the aerosol generating product 100.

[0146] The functional segment 20 is an integrated structure formed by extrusion, which improves the high temperature resistance of the functional segment 20, thereby improving the structural stability of the functional segment 20. It is not easy to deform and melt after being heated, and can improve the release of impurities, the influence of suction resistance, and the blocking of the airway to a certain extent, thereby improving the user experience.

[0147] The filter section 30 is a hollow acetate fiber structure or a solid acetate fiber structure to filter and cool the aerosol.

[0148] See also Figure 1 and Figure 2 At least one first airway hole 10a is provided inside the medium segment 10, and the first airway hole 10a penetrates at least one end of the medium segment 10 along the first direction. At least one second airway hole 20a is provided inside the functional segment 20, and the second airway hole 20a penetrates at least one end of the functional segment 20 along the first direction. The first airway hole 10a and the second airway hole 20a can play a role in adjusting the suction resistance.

[0149] On a plane perpendicular to the first direction of the aerosol generating product 100, the sum of the cross-sectional areas of all the second airway holes 20a is greater than or equal to the sum of the cross-sectional areas of all the first airway holes 10a, so as to achieve that the suction resistance of the functional segment 20 is less than or equal to the suction resistance of the medium segment 10; the hydraulic diameter of a single second airway hole 20a is greater than or equal to the hydraulic diameter of a single first airway hole 10a; the number of second airway holes 20a is less than or equal to the number of first airway holes 10a. A small number of second airway holes 20a with a large hydraulic diameter is more conducive to cooling the aerosol. On a plane perpendicular to the first direction of the aerosol generating product 100, since the cross-sectional areas of the functional segment 20 and the medium segment 10 are consistent, and the hydraulic diameter of the second airway hole 20a is greater than the hydraulic diameter of the first airway hole 10a, the number of second airway holes 20a should be less than the number of first airway holes 10a, so as to be more conducive to cooling the aerosol.

[0150] The suction resistance of the functional section 20 is less than or equal to the suction resistance of the medium section 10 , and thus, the main functions of the functional section 20 are support and temperature reduction.

[0151] Each second airway hole 20a is formed in the functional section 20 in a non-uniformly distributed form. Specifically, a central airway 20b is provided inside the functional section 20, and the central airway 20b runs through both ends of the functional section 20 along the first direction. The number of second airway holes 20a is multiple, and each second airway hole 20a is arranged at intervals on the peripheral side of the central airway 20b. In other words, the central airway 20b is arranged at the center of the functional section 20, and the aperture of the central airway 20b is relatively large, and the aperture of the second airway holes 20a arranged at the periphery of the central airway 20b is relatively small. This method is conducive to the aerosol gathering to the center and being sucked, and the aerosol has better agglomeration.

[0152] 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 central airway 20b and the second airway hole 20a of the functional segment 2, and finally enters the user's mouth after being filtered by the filter segment 30.

[0153] Second embodiment

[0154] See also Figure 3 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 central airway 20b is not provided inside the functional section 20, and the second airway holes 20a are formed in the functional section 20 in a uniformly distributed manner. In other words, the apertures of the second airway holes 20a are consistent, and the uniform distribution of the second airway holes 20a is conducive to the smoothness, uniformity and cooling efficiency of the aerosol flow, and improves the user's inhalation experience.

[0155] Third embodiment

[0156] See also Figure 4 and Fig.16 In this embodiment, the structure of the aerosol generating article 100 is substantially the same as that of the second embodiment, and the main differences include: in this embodiment, the cross-sectional shape of the second airway hole 20a of the functional segment 20 is a long strip.

[0157] The second airway holes 20a of this cross-sectional shape and their distribution are beneficial to the flow of aerosol and can reduce the misalignment between the second airway holes 20a of the functional segment 20 and the first airway holes 10a of the medium segment 10 to a certain extent, thereby improving the obstruction of aerosol flow. At the same time, the second airway holes 20a of this cross-sectional shape are easy to adjust the inhalation resistance. For example, the inhalation resistance can be increased by reducing the short side length of the second airway holes 20a, and the inhalation resistance can be reduced by increasing the short side length of the second airway holes 20a.

[0158] Fourth embodiment

[0159] See also Figure 5In this embodiment, the structure of the aerosol generating article 100 is substantially the same as that of the second embodiment, and the main differences include: in this embodiment, on a plane perpendicular to the first direction of the aerosol generating article 100, the sum of the cross-sectional areas of all the second airway holes 20a is smaller than the sum of the cross-sectional areas of all the first airway holes 10a.

[0160] That is, the porosity of the functional segment 20 is smaller than that of the medium segment 10, that is, the suction resistance of the functional segment 20 is greater than that of the medium segment 10. In this way, when the aerosol flows from the medium segment 10 to the functional segment 20, the suction resistance of the aerosol generating product 100 can be increased, and the aerosol inside the medium segment 10 can be easily extracted, the aerosol is released more evenly and the utilization rate is higher, and the medium segment 10 is not prone to burn. At the same time, the user's sensory characteristics such as natural and smooth suction, smoke permeability, and comfort during the suction process can be satisfied.

[0161] The cross-sectional area of ​​the second airway hole 20a is smaller than the cross-sectional area of ​​the first airway hole 10a on a plane perpendicular to the first direction of the aerosol generating article 100. That is, the hydraulic diameter of the second airway hole 20a is smaller than the hydraulic diameter of the first airway hole 10a.

[0162] It is understandable that when the aerosol flows from the first airway hole 10a of the medium segment 10 to the second airway hole 20a of the functional segment 20, the airflow channel becomes smaller, that is, the suction resistance of the functional segment 20 is greater than the suction resistance of the medium segment 10, which is conducive to increasing the suction resistance of the aerosol generating article 100. Furthermore, the functional segment 20 also has micropores, and when the aerosol flows through the functional segment 20, part of the aerosol can flow through the micropores, further increasing the flow resistance of the aerosol, which is further conducive to increasing the suction resistance of the aerosol generating article 100.

[0163] It is understandable that a large number of second airway holes 20a with a small hydraulic diameter is more conducive to the increase of the draw resistance of the functional segment 20 and the aerosol generating article 100. On a plane perpendicular to the first direction of the aerosol generating article 100, since the cross-section of the functional segment 20 is consistent with that of the medium segment 10, and the hydraulic diameter of the second airway hole 20a is smaller than the hydraulic diameter of the first airway hole 10a, the number of the second airway holes 20a should be greater than the number of the first airway holes 10a. Exemplarily, in other embodiments, the number of the second airway holes 20a is greater than the number of the first airway holes 10a.

[0164] The suction resistance of the functional segment 20 is less than or equal to the suction resistance of the medium segment 10 , and thus the main function of the functional segment 20 is to support and adjust the suction resistance.

[0165] Fifth embodiment

[0166] See also Figure 6 and Fig.11In this embodiment, the aerosol generating product 100 includes a medium segment 10, a functional segment 20 and a filter segment 30 arranged in sequence along a first direction. The medium segment 10, the functional segment 20 and the filter segment 30 are separable structures, that is, the aerosol generating product 100 is a three-section combined structure composed of the medium segment 10, the functional segment 20 and the functional segment 20 combined in sequence.

[0167] The medium segment 10 and the functional segment 20 are both integral structures formed by extrusion. The medium segment 10 and the functional segment 20 are manufactured using the same processing technology, thereby improving the production efficiency of the aerosol generating product 100.

[0168] The functional segment 20 is an integrated structure formed by extrusion, which improves the high temperature resistance of the functional segment 20, thereby improving the structural stability of the functional segment 20. It is not easy to deform and melt after being heated, and can improve the release of impurities, the influence of suction resistance, and the blocking of the airway to a certain extent, thereby improving the user experience.

[0169] See also Figure 6 and Fig.11 At least one first airway hole 10a is provided inside the medium segment 10, and the first airway hole 10a penetrates at least one end of the medium segment 10 along the first direction. At least one second airway hole 20a is provided inside the functional segment 20, and the second airway hole 20a penetrates at least one end of the functional segment 20 along the first direction. The first airway hole 10a and the second airway hole 20a can play a role in adjusting the suction resistance.

[0170] In this embodiment, please refer to Figure 6 and Fig.11 The dielectric segment 10 and the functional segment 20 are spaced apart to define a cavity 100a.

[0171] That is to say, the medium segment 10 and the functional segment 20 are spaced apart to define a cavity 100a. That is to say, the medium segment 10 and the functional segment 20 are spaced apart and are surrounded by the wrapping layer 40 wrapped around the periphery of the medium segment 10 and the functional segment 20 to form the cavity 100a. 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 buffer 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.

[0172] Sixth embodiment

[0173] See also Figure 7 and Fig.12In 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 cavity 100a is arranged between the functional section 20 and the filtering section 30.

[0174] That is, the functional segment 20 and the filter segment 30 are arranged at intervals, and the cavity 100a is formed by the wrapping layer 40 wrapped around the functional segment 20 and the peripheral side of the functional segment 20. It can be understood that by forming the cavity 100a between the functional segment 20 and the filter segment 30, the aerosol generated by heating the medium segment 10 can flow to the functional segment 20, and then flow to the cavity 100a for buffering, thereby increasing the flow path of the aerosol during the aerosol transportation process, thereby having a rapid cooling effect, and at the same time, the setting of the cavity 100a can also buffer the aerosol generated by the medium segment 10.

[0175] Seventh embodiment

[0176] See also Figure 8 and Fig.13 In this embodiment, the structure of the aerosol generating product 100 is substantially the same as that of the fifth embodiment, and the main differences include: in this embodiment, a cavity 100a is provided between the medium segment 10 and the functional segment 20, and between the functional segment 20 and the filter segment 30.

[0177] The cavity 100a provided in this embodiment has the functions of aerosol buffering and cooling, and is conducive to the rapid extraction of aerosol. Under the premise of giving priority to the aerosol buffering function, the cavity 100a is provided between the medium segment 10 and the functional segment 20, and between the functional segments 20 and the functional segments 20, that is, through the alternating combination of the cavity 100a structure, the aerosol extraction rate and buffering function are further improved.

[0178] Eighth embodiment

[0179] See also Fig.10 and Fig.15 In 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 cavity 100a is arranged at one end of the medium segment 10 away from the functional segment 20.

[0180] In this embodiment, a cavity 100a is provided at one end of the medium segment 10 away from the functional segment 20 to increase the contact area between the medium segment 10 and the air, which is beneficial to the natural diffusion of the aerosol formed by the heating of the medium segment 10 and the extraction of the aerosol.

[0181] Ninth embodiment

[0182] See also Fig. 9 and Fig.14In 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 cavity 100a is arranged at one end of the filter segment 30 away from the functional segment 20.

[0183] In this embodiment, a cavity 100a is provided at one end of the functional section 20 away from the functional section 20, thereby increasing the area of ​​the cavity 100a near the lip end of the filter section 30 and reducing the heat conduction efficiency. As a result, after the aerosol flows out from the inlet lip end of the filter section 30, it can quickly come into contact with the air. That is, the air has a relatively low thermal conductivity efficiency, and the aerosol can quickly exchange heat and cool down when it meets the cold air outside, thereby improving the "hot" problem of the smoke and facilitating the aerosol extraction and cooling functions.

[0184] 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.

[0185] 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 article comprises a medium segment, a functional segment and a filter segment arranged in sequence along a first direction, wherein the medium segment and the functional segment are both integral structures; 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; at least one second airway hole is provided inside the functional segment, and the second airway hole passes through at least one end of the functional segment along the first direction.

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

3. The aerosol-generating article according to claim 1, wherein In a plane perpendicular to the first direction of the aerosol-generating article, the sum of the cross-sectional areas of all the second airway holes is greater than or equal to the sum of the cross-sectional areas of all the first airway holes.

4. The aerosol-generating article according to claim 3, wherein: In a plane perpendicular to the first direction of the aerosol generating article, the cross-sectional area of ​​a single second airway hole is greater than or equal to the cross-sectional area of ​​a single first airway hole; Alternatively, the hydraulic diameter of a single second airway hole is greater than or equal to the hydraulic diameter of a single first airway hole.

5. The aerosol-generating article according to claim 3, wherein: The number of the second airway holes is less than or equal to the number of the first airway holes.

6. The aerosol-generating article of claim 1, wherein: In a plane perpendicular to the first direction of the aerosol-generating article, the sum of the cross-sectional areas of all the second airway holes is smaller than the sum of the cross-sectional areas of all the first airway holes.

7. An aerosol-generating article according to claim 6, 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.

8. The aerosol-generating article of claim 6, wherein: The number of the second airway holes is greater than the number of the first airway holes.

9. The aerosol-generating article of claim 1, wherein: In a plane perpendicular to the first direction of the aerosol generating article, a cross-sectional shape of the second airway hole is at least one of a circle, an ellipse, a racetrack, a polygon and a sector.

10. The aerosol-generating article of claim 1, wherein: The aerosol generating article has at least one cavity inside; and / or the functional section is a supporting section or a cooling section.

11. An aerosol-generating article according to claim 10, characterized in that The medium segment and the functional segment are spaced apart to define the cavity; and / or the filter segment and the functional segment are spaced apart to define the cavity.

12. The aerosol-generating article of claim 10, wherein: The cavity is disposed at least at one end of the medium segment away from the functional segment; and / or the cavity is disposed at least at one end of the filter segment away from the functional segment.

13. The aerosol-generating article of claim 1, wherein: Two ends of the functional segment are in contact with the medium segment and the filter segment respectively.

14. The aerosol-generating article of claim 1, wherein: A central air channel is provided inside the functional segment, and the central air channel runs through both ends of the functional segment along the first direction. There are multiple second air channel holes, and each of the second air channel holes is arranged at intervals on the circumferential side of the central air channel; on a plane perpendicular to the first direction of the aerosol generating product, the cross-sectional area of ​​the central air channel is larger than the cross-sectional area of ​​the second air channel holes.

15. The aerosol-generating article of claim 1, wherein: There are a plurality of second airway holes, and each of the second airway holes is formed in the functional section in a uniformly distributed manner.

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

17. The aerosol-generating article of claim 1, wherein: The filter section is a hollow acetate fiber structure or a solid acetate fiber structure.

18. An aerosol generating system, characterized in that: The aerosol generating system comprises an aerosol generating device and the aerosol generating article according to any one of claims 1 to 17, wherein the aerosol generating device comprises a heating element for heating the media segment to generate an aerosol.

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