Aerosol-generating article and aerosol-generating system

Abstract

The utility model discloses an aerosol generating product and an aerosol generating system, in the aerosol generating product, a filtering section, a cooling section, a fuming section and a sealing section are sequentially arranged along a first direction; the cooling section is provided with a first pipe body and a second pipe body, the first pipe body is located on the periphery of the second pipe body, a first flow channel is formed between the first pipe body and the second pipe body, the interior of the second pipe body is hollow to form a second flow channel, and the second flow channel is used for allowing aerosol generated by the fuming section to flow into the filtering section; the first pipe body is connected with the outer pipe; the cooling section further comprises a plurality of drainage holes, the drainage holes penetrate through the outer pipe and the first pipe body and communicate with the first flow channel, the drainage holes are formed in the circumferential direction of the cooling section at intervals, the sections, in the extending direction perpendicular to the drainage holes, of at least part of the drainage holes are in an upright triangle shape, and the bottom edge of the upright triangle is closer to the fuming section relative to the vertex angle. Air outside the aerosol generating product is guided by the drainage hole and then flows to the smoke generating section in an accelerated manner; and the ventilation rate ratio C of the sealing section to the cooling section is less than or equal to 5%.

Description

Technical Field

[0001] This application relates to the field of aerosol generation technology, specifically to aerosol generation products and aerosol generation systems. Background Technology

[0002] In the field of heat-not-combustible materials, aerosol-generating products are placed in a heating device, and the aerosol-generating matrix is ​​heated by the heating device to form an aerosol.

[0003] In related technologies, the air inlet path is located on the heating device. When the aerosol-generating product is drawn in, air enters through the air inlet path and passes through the smoke-generating section of the aerosol-generating product from bottom to top, carrying away the aerosols generated in the smoke-generating section. However, this presents two problems: firstly, the airflow velocity is too slow, resulting in low aerosol extraction efficiency, small smoke volume, and uneven aerosol mixing; secondly, the passage of cold air through the smoke-generating section increases the difficulty of temperature control. Utility Model Content

[0004] This application provides an aerosol generating article and an aerosol generating system to solve or partially solve the problems of low smoke volume, uneven aerosol mixing, and difficulty in temperature control caused by the air inlet path being located on the heating device.

[0005] In one embodiment, an aerosol generating article is provided, comprising a filtration section, a cooling section, a smoke generating section, a sealing section, and an outer tube enclosing the filtration section, the cooling section, the smoke generating section, and the sealing section; the filtration section, the cooling section, the smoke generating section, and the sealing section are sequentially arranged along a first direction; the cooling section has a first tube and a second tube, the first tube being located on the outer periphery of the second tube, a first flow channel being formed between the first tube and the second tube, and a second flow channel being formed by the hollow interior of the second tube, the second flow channel being used to supply the gas generated by the smoke generating section. The aerosol flows into the filtration section; the first tube is connected to the outer tube; the cooling section also includes multiple drainage holes, which penetrate the outer tube and the first tube and communicate with the first flow channel. The drainage holes are arranged at intervals along the circumference of the cooling section, and at least some of the drainage holes form an upright triangle in cross-section perpendicular to the extension direction of the drainage holes. The base of the upright triangle is closer to the smoke-generating section than the apex. Air outside the aerosol-generating product is guided by the drainage holes and flows accelerated towards the smoke-generating section; the ventilation rate ratio C of the sealing section and the cooling section satisfies: C≤5%.

[0006] In some embodiments, the total cross-sectional area S1 of all the drainage holes along the extension direction perpendicular to the drainage holes satisfies: 0.001 mm. 2 ≤S1≤0.05mm 2; and / or, in the cross-section of the drainage hole, the maximum spacing M between the holes satisfies: 0 < M ≤ 60 μm.

[0007] In some embodiments, the distance N from the center of the drainage hole to the end face of the filter section away from the smoke-generating section satisfies: 15mm≤N≤35mm.

[0008] In some embodiments, the ventilation rate Q of the cooling section satisfies: 5% ≤ Q ≤ 50%.

[0009] In some embodiments, the wall of the second tube is provided with a through hole, which penetrates the second tube and connects the first flow channel and the second flow channel. The through hole is located on the extension line of the drainage hole.

[0010] In some embodiments, the cooling section is further provided with a connecting layer located between the first tube and the second tube, the connecting layer connecting the first tube and the second tube and separating a plurality of isolated first flow channels between the first tube and the second tube.

[0011] In some embodiments, the plurality of drainage holes are arranged in multiple rings along the circumference of the outer tube, the multiple rings of holes being spaced apart along the first direction, and the cross-section of the ring of holes closest to the smoke-generating section is an upright triangle.

[0012] In some embodiments, the angle between the extension direction of the drainage hole and the first direction is an acute angle.

[0013] In some embodiments, the ring of holes closest to the filter section has an inverted triangular cross-section perpendicular to the extension direction of the drainage holes.

[0014] In one embodiment, an aerosol generation system is also provided, which includes a heating device and an aerosol generation article as described above; the heating device is provided with a receiving cavity; the smoke-generating section of the aerosol generation article is hermetically inserted into the receiving cavity, and the drainage hole is connected to the outside of the heating device.

[0015] According to the aerosol generating product of the above embodiment, air outside the aerosol generating product is guided by the inlet holes and flows rapidly towards the smoke generating section. The ventilation ratio C of the sealing section and the cooling section is less than or equal to 5%. Thus, the ventilation ratio of the sealing section is relatively small, preventing air from passing through the sealing section and entering the smoke generating section. The aerosol generating product uses triangular inlet holes, especially upright triangular inlet holes. Combined with the sealing section, the air is guided by the upright triangular inlet holes and flows rapidly towards the smoke generating section, increasing the aerosol extraction efficiency, which is beneficial for aerosol extraction and improves sensory quality. Furthermore, the absence of cold air passing through the smoke generating section avoids the temperature drop in the smoke generating section caused by air entering through the sealing section, thus reducing the difficulty of temperature control in the smoke generating section. The aerosol generated in the smoke generating section has a certain temperature. As the aerosol flows through the second tube, it heats the second tube, causing its temperature to rise. The flow of cold air through the inlet holes towards the smoke generating section also lowers the temperature of the second tube, preventing burns. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an aerosol-generated product.

[0017] Figure 2 for Figure 1 A structural schematic diagram of the first embodiment, shown in sectional view AA;

[0018] Figure 3 for Figure 1 A structural schematic diagram of the second embodiment, shown in sectional view AA;

[0019] Figure 4 for Figure 1 A structural schematic diagram of the third embodiment shown in the AA cross-sectional view;

[0020] Figure 5 for Figure 1 A structural schematic diagram of the fourth embodiment, shown in sectional view AA;

[0021] Figure 6 for Figure 1 A structural schematic diagram of the fifth embodiment shown in the AA cross-sectional view;

[0022] Figure 7 for Figure 1 A structural schematic diagram of the sixth embodiment, shown in sectional view AA;

[0023] Figure 8 for Figure 1 A structural schematic diagram of the BB cross-section;

[0024] Figure 9 A schematic diagram of the structure of the drainage hole in the aerosol-generated product according to the first embodiment;

[0025] Figure 10 This is a schematic diagram of the second embodiment of the drainage hole in the aerosol-generated product;

[0026] Figure 11 This is a schematic diagram of the heating device.

[0027] Figure 12 This is a schematic diagram of the heating device in cross-sectional view (CC view).

[0028] The accompanying diagrams are labeled as follows:

[0029] 10. Filtration section; 20. Cooling section; 21. First tube body; 22. Second tube body; 23. First flow channel; 24. Second flow channel; 25. Through hole; 26. Connecting layer; 30. Smoke generating section; 31. Coating layer; 32. Aerosol matrix; 40. Sealing section; 50. Outer tube; 51. First tube; 52. Second tube; 70. Drainage hole;

[0030] 80. Heating device; 81. Receiving cavity; 82. Heating element; 83. Sealing element;

[0031] 90. Aerosol-generated products; Z, First direction. Detailed Implementation

[0032] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0033] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments. At the same time, the steps or actions in the method description can be rearranged or adjusted in a manner obvious to those skilled in the art. Therefore, the various orders in the specification and drawings are only for the clear description of a particular embodiment and do not imply a necessary order, unless otherwise stated that a particular order must be followed.

[0034] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. Unless otherwise specified, the terms "connection" and "linkage" used in this application include both direct and indirect connections.

[0035] This application provides an aerosol generating article 90, which is inserted into a heating device 80 to be heated by the heating device 80 to generate aerosol.

[0036] Reference Figure 1 and Figure 2 As shown, the aerosol generating product 90 includes a filtration section 10, a cooling section 20, a smoke generating section 30, a sealing section 40, and an outer tube 50 that encloses the filtration section 10, cooling section 20, smoke generating section 30, and sealing section 40; along the first direction Z, the filtration section 10, cooling section 20, smoke generating section 30, and sealing section 40 are arranged sequentially; further refer to Figure 8 As shown, the cooling section 20 is provided with a first tube 21 and a second tube 22. The first tube 21 is located on the outer periphery of the second tube 22, and a first flow channel 23 is formed between the first tube 21 and the second tube 22. The interior of the second tube 22 is hollow, forming a second flow channel 24. The second flow channel 24 is used to allow the aerosol generated by the smoke-generating section 30 to flow into the filter section 10. The first tube 21 is connected to the outer tube 50. The cooling section 20 also includes a plurality of drainage holes 70, which penetrate the outer tube 50. 0 and the first tube 21 are connected to the first flow channel 23. The drainage holes 70 are arranged circumferentially along the cooling section 20. At least some of the drainage holes 70 have an upright triangle in cross-section perpendicular to the extension direction of the drainage holes 70. The base of the upright triangle is closer to the smoke-generating section 30 than the apex. The air outside the aerosol generating product 90 is guided by the drainage holes 70 and then flows accelerated to the smoke-generating section 30. The ventilation rate ratio C of the sealing section 40 and the cooling section 20 satisfies: C≤5%.

[0037] In this embodiment, the first direction Z is the flow direction of the aerosol, meaning the filter section 10 is located downstream of the aerosol generating product 90, and the sealing section 40 is located upstream of the aerosol generating product 90. The downstream end of the aerosol generating product 90 is closer to the user. The filter section 10 is used for filtration and can come into contact with the user. The sealing section 40 is used to seal the outer pipe 50, preventing the smoke generating section 30 and the aerosol matrix 32 within it from falling out of the outer pipe 50 and protecting the smoke generating section 30. The smoke generating section 30 includes an aerosol matrix 32 that generates aerosol when heated and a coating layer 31 that encapsulates the aerosol matrix 32. The coating layer 31 encapsulates the aerosol matrix 32, preventing leakage of the aerosol matrix 32 and preventing the heating device 80 from becoming contaminated due to leakage, and also has a heat-conducting function.

[0038] In this embodiment, the aerosol generating product 90 allows air outside the aerosol generating product 90 to flow rapidly towards the smoke generating section 30 after being guided by the flow-inlet hole 70. Furthermore, the ventilation rate ratio C of the sealing section 40 to the cooling section 20 is within the aforementioned range. Thus, the ventilation rate of the sealing section 40 is relatively small, preventing air from passing through the sealing section 40 and entering the smoke generating section 30. The aerosol generating product 90 receives air through the triangular flow-inlet hole 70, especially the upright triangular flow-inlet hole 70. Combined with the sealing section 41, the air is guided by the upright triangular flow-inlet hole 70 and flows rapidly towards the smoke generating section 30, increasing the aerosol extraction efficiency and improving sensory quality. Moreover, the absence of cold air passing through the smoke generating section 30 prevents the temperature of the smoke generating section 30 from decreasing due to air intake from the sealing section 40, thus reducing the difficulty of temperature control in the smoke generating section 30. The aerosol generated by the smoke-generating section 30 has a certain temperature. As the aerosol flows through the second tube 22, it heats the second tube 22, causing its temperature to rise. As the cold air is guided to the smoke-generating section 30 through the drainage hole 70, it can also reduce the temperature of the second tube 22, thus avoiding the problem of scalding the mouth.

[0039] In some embodiments, the ventilation rate ratio C of the sealing section 40 to the cooling section 20 satisfies: 0% ≤ C ≤ 5%. In this way, the sealing section 40 basically does not take in air or the amount of air taken in is small, which can prevent the sealing section 40 from taking in too much cold air and lowering the temperature of the smoke-generating section 30. The actual temperature of the smoke-generating section 30 being heated is lower than the preset temperature, which requires real-time adjustment of the heating power to ensure the actual temperature of the smoke-generating section 30, increasing the difficulty of temperature control.

[0040] Understandably, in practical applications, the ventilation rate ratio C of the sealing section 40 to the cooling section 20 is set according to the specific needs of use. For example, C can be one of 0%, 0.5%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, or 5%.

[0041] In some embodiments, the sealing section 40 may be configured to be substantially airtight to prevent air from entering the aerosol-generating article 90 through the sealing section 40, and to prevent aerosol from flowing out of the sealing section 40 and entering the heating device 80, thus contaminating the heating device 80. It is understood that the material of the sealing section 40 may be at least one of diacetate fiber, polypropylene fiber, polylactic acid fiber, and polyester fiber, with a tow specification, for example, 20.0Y42000, and a suction resistance, for example, greater than 200 Pa / mm. The material, tow specification, and suction resistance of the sealing section 40 can be specifically selected according to the application requirements, and this application embodiment does not limit the choice.

[0042] In some embodiments, the filter section 10 is made of a filter material, which can be selected according to the usage requirements. For example, the filter section 10 is made of cellulose acetate tow, or one or more products of breathable materials such as polylactic acid fiber and polyethylene.

[0043] In some embodiments, along the extending direction perpendicular to the drainage hole 70, the total cross-sectional area S1 of all drainage holes 70 satisfies: 0.001 mm. 2 ≤S1≤0.05mm 2 In this embodiment, when the total cross-sectional area S1 of all drainage holes 70 is within the above-mentioned range, the total cross-sectional area S1 of all drainage holes 70 is relatively moderate, the flow rate of cold air entering through the drainage holes 70 is moderate, the amount of aerosol is moderate, and the concentration of aerosol after mixing air and aerosol is moderate, resulting in good sensory quality. When the total cross-sectional area S1 of all drainage holes 70 is greater than 0.05 mm... 2 In cases where the total cross-sectional area S1 of all drainage holes 70 is too large, the flow rate of cold air entering through the drainage holes 70 is too high, which easily dilutes the aerosol and affects sensory quality. When the total cross-sectional area S1 of all drainage holes 70 is less than 0.001 mm², the aerosol is diluted. 2 In this case, if the total cross-sectional area S1 of all drainage holes 70 is too small, the flow rate of cold air entering through the drainage holes 70 will be too small, which may easily lead to scalding the mouth and difficulty in aerosol extraction.

[0044] Understandably, in practical applications, the total cross-sectional area S1 of all drainage holes 70 is set according to the specific usage requirements; for example, S1 may be 0.001 mm. 2 0.003mm 2 0.005mm 2 0.007mm 2 0.01mm 2 0.015mm 2 0.02mm 2 0.025mm 2 0.03mm 2 0.035mm 2 0.04mm 2 0.045mm 2 0.05mm 2 one of the.

[0045] In some embodiments, refer to Figure 10As shown, in the cross-section of the drainage hole 70, the maximum spacing M between the hole walls of the drainage hole 70 satisfies: 0 < M ≤ 60 μm. In this embodiment, when the maximum spacing M between the hole walls of the drainage hole 70 is within the above range, the size of the drainage hole 70 is relatively moderate, the flow rate of cold air entering through the drainage hole 70 is moderate, the amount of aerosol is moderate, and the concentration of aerosol after mixing air and aerosol is moderate, resulting in good sensory quality. When the maximum spacing M between the hole walls of the drainage hole 70 is greater than 60 μm, the drainage hole 70 is too large, the flow rate of cold air entering through the drainage hole 70 is large, which easily dilutes the aerosol and affects the sensory quality.

[0046] Understandably, in practical applications, the maximum spacing M of the drainage hole 70 is set according to the specific requirements of the application. For example, M can be one of 60μm, 55μm, 50μm, 45μm, 40μm, 35μm, 30μm, 25μm, 20μm, 15μm, 10μm, 5μm, or 1μm.

[0047] In some embodiments, refer to Figure 2 and Figure 4 As shown, the distance N from the center of the drainage hole 70 to the end face of the filter section 10 away from the smoke-generating section 30 satisfies: 15mm ≤ N ≤ 35mm. In this embodiment, when the distance N from the center of the drainage hole 70 to the end face of the filter section 10 away from the smoke-generating section 30 is within the above range, the setting position of the drainage hole 70 is relatively moderate. The drainage hole 70 can expose the heating device 80, and can also avoid being covered by the drainage hole 70 during the suction process.

[0048] Understandably, the distance N from the center of the drainage hole 70 to the end face of the filter section 10 away from the smoke-generating section 30 is set according to the usage requirements. For example, N is one of 15mm, 17mm, 19mm, 20mm, 22mm, 24mm, 26mm, 28mm, 30mm, 32mm, 34mm, and 35mm.

[0049] In some embodiments, the ventilation rate Q of the cooling section 20 satisfies: 5% ≤ Q ≤ 50%. In this embodiment, when the ventilation rate Q of the cooling section 20 is within the above range, the ventilation rate Q of the cooling section 20 is relatively moderate, the flow rate of cold air entering the cooling section 20 is moderate, the amount of aerosol is moderate, and the concentration of aerosol after mixing air and aerosol is moderate, resulting in good sensory quality. When the ventilation rate Q of the cooling section 20 is greater than 50%, the ventilation rate Q of the cooling section 20 is too large, which easily dilutes the aerosol and affects the sensory quality. When the ventilation rate Q of the cooling section 20 is less than 5%, the ventilation rate Q of the cooling section 20 is too small, which easily leads to scalding.

[0050] Understandably, in practical applications, the ventilation rate Q of the cooling section 20 is set according to the specific usage requirements. For example, Q can be one of 5%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, or 50%.

[0051] In some embodiments, refer to Figure 3 As shown, the second tube body 22 is provided with a through hole 25, which penetrates the second tube body 22 to connect the first flow channel 23 and the second flow channel. The through hole 25 is located on the extension line of the flow hole 70.

[0052] In this embodiment, the through hole 25 allows air outside the aerosol generating product 90 to flow downstream of the smoke generating section 30 after being guided by the drainage hole 70 and the through hole 25, and mix with the aerosol in the second tube 22, resulting in a more uniform mixing of gas and aerosol.

[0053] In some embodiments, refer to Figure 8 As shown, the cooling section 20 is further provided with a connecting layer 26 located between the first tube 21 and the second tube 22. The connecting layer 26 connects the first tube 21 and the second tube 22, and the connecting layer 26 separates multiple isolated first flow channels 23 between the first tube 21 and the second tube 22. In this embodiment, the connection layer 26 connects the first tube 21 and the second tube 22, making the positions of the first tube 21 and the second tube 22 relatively stable, and making the structure of the cooling section 2 stable.

[0054] It is understood that in some embodiments, the cooling section 20 is a double-layer corrugated pipe, with the outer layer forming a first pipe body 21 and the inner layer forming a second pipe body 22.

[0055] In some embodiments, the size of the cooling section 20 can be set according to usage requirements. This application embodiment does not specifically limit this. For example, the diameter of the columnar structure formed by the outer circumference of the first tube 21 is 7.1 mm, and the diameter of the columnar structure formed by the inner circumference of the second tube 22 is 5.2 mm.

[0056] In some embodiments, a plurality of drainage holes 70 are arranged in a multi-ring pattern along the circumference of the outer tube 50, and the multi-ring holes are spaced apart along the first direction Z. The cross-section of the ring of holes closest to the smoke-generating section 30 is an upright triangle.

[0057] In this embodiment, multiple rings of holes can be spaced out along the first direction Z to meet the flow requirements of all drainage holes 70, thereby allowing for the extraction of more air-rich aerosols and ensuring that the concentration of aerosols after mixing with air is moderate, resulting in better sensory quality.

[0058] In some embodiments, there are 6 to 32 drainage holes 70, and the plurality of drainage holes 70 are arranged at intervals along the circumference of the outer tube 50. In the embodiments of this application, when the number of drainage holes 70 is within the above range, the number of drainage holes 70 is moderate, the flow rate of cold air entering through the drainage holes 70 is moderate, the flow rate of each drainage hole 70 is also moderate, and after the introduced cold air is mixed with the aerosol, the concentration of the aerosol is moderate and the sensory quality is good.

[0059] Understandably, in practical applications, the number of drainage holes 70 is set according to the specific needs of use. For example, the number of drainage holes 70 can be one of 6, 7, 8, 10, 12, 15, 17, 20, 22, 25, 30, or 32.

[0060] In some embodiments, the angle between the extending direction of the drainage hole 70 and the first direction Z is an acute angle, as can be referred to... Figure 3 The diagram illustrates a structure where the angle between the extension direction of the drainage hole 70 and the first direction Z is acute. In this embodiment, there are two cases where the angle between the extension direction of the drainage hole 70 and the first direction Z is acute: in the direction from the outer tube 50 to the first tube body 21, one case is that the drainage hole 70 extends towards the upstream end, and the other case is that the drainage hole 70 extends towards the downstream end. When the drainage hole 70 extends towards the upstream end, it extends towards the smoke-generating section 30. Air is guided by the drainage hole 70 and flows more rapidly towards the smoke-generating section 30, which can increase the aerosol extraction efficiency, increase the aerosol quantity, and ensure uniform mixing of air and aerosol, thus improving sensory quality. When the drainage hole 70 extends towards the downstream end, it extends towards the filter section 10. Air is guided by the drainage hole 70 and flows more rapidly towards the filter section 10, which can reduce the temperature of the cooling section 20 near the filter section 10, avoiding the problem of scalding the mouth.

[0061] In some embodiments, the extension direction of the drainage hole 70 is perpendicular to the first direction Z, as can be referred to... Figure 5 It shows a schematic diagram of the structure in which the extension direction of the drainage hole 70 is perpendicular to the first direction Z.

[0062] In some embodiments, the ring of holes closest to the filter section 10 has an inverted triangular cross-section perpendicular to the extending direction of the drainage hole 70. The base of the inverted triangle is closer to the filter section 10 than its apex.

[0063] In some embodiments, along the extending direction perpendicular to the drainage hole 70, the cross-section of the drainage hole 70 is one of an upright isosceles triangle and an inverted isosceles triangle. The upright isosceles triangle is referenced... Figure 10 As shown, the inverted isosceles triangle reference Figure 9 As shown.

[0064] In this embodiment, an isosceles triangle is a triangle with at least two equal sides. The two equal sides are called the legs of the triangle. In an isosceles triangle, the two equal sides are called the legs, and the other side is called the base. The angle between the two legs is called the vertex angle, and the angle between a leg and the base is called the base angle. The two base angles of an isosceles triangle are equal in measure. An upright isosceles triangle is one whose vertex angle faces the upstream end of the aerosol generating product 90, and an inverted isosceles triangle is one whose vertex angle faces the downstream end of the aerosol generating product 90. Upright and inverted isosceles triangles can increase the air intake rate of the inlet 70, making the aerosol mixing inside the aerosol generating product 90 more uniform. The principle is as follows: Compared with a circular jet, a triangular jet can more effectively entrain surrounding fluid, which means more effective mixing. The main mechanism by which a triangular jet can enhance mixing is the non-uniform curvature and the interaction between the azimuth vortex and the flow vortex, causing self-induced deformation of the vortex ring. Due to self-induction, vortex rings with small radii of curvature will propagate downstream at a faster speed and diffuse more quickly. Since the minimum radius of curvature of the vortex ring appears in the long axis plane and the maximum radius of curvature appears in the short axis plane, the short axis develops at a faster speed, resulting in an "axis transformation" phenomenon at a certain distance from the outlet. That is, as this flow develops downstream, their cross-sectional average flow field takes on a shape similar to that of a nozzle, but rotates continuously around the central axis at the characteristic angle of the jet nozzle.

[0065] In some embodiments, it is understood that the direction of the triangle's extension and whether the triangle is upright or inverted are specifically set according to usage requirements, for example, referring to... Figure 2 and Figure 3 It shows a schematic diagram of a structure in which the extension direction of the drainage hole 70 forms an acute angle with the first direction Z, and the drainage hole 70 is upright; refer to Figure 4 and Figure 5 It shows a schematic diagram of a structure in which the extension direction of the drainage hole 70 is perpendicular to the first direction Z, and the drainage hole 70 is upright; refer to Figure 6 It shows a schematic diagram of a structure in which the extension direction of the upstream drainage hole 70 forms an acute angle with the first direction Z, and the extension direction of the downstream drainage hole 70 is perpendicular to the first direction Z; refer to Figure 7 It shows a schematic diagram of the structure in which the extension direction of the drainage hole 70 in the two rings of holes on the upstream and downstream sides makes an acute angle with the first direction Z, and the drainage hole 70 is upright.

[0066] Reference Figure 10 As shown, the triangular inlet 70 is upright. In the gas entering through the upright inlet 70, the airflow towards the smoke-generating section 30 is greater than the airflow towards the filter section 10. (Refer to...) Figure 9As shown, the triangular inlet 70 is inverted, with the air intake towards the filter section 10 being greater than the air intake towards the smoke-generating section 30. When the extension direction of the inlet 70 is perpendicular to the first direction Z, part of the gas entering through the inlet 70 flows towards the smoke-generating section 30, and part flows towards the filter section 10. When the extension direction of the inlet 70 forms an acute angle with the first direction Z and extends towards the smoke-generating section 30, most of the gas entering through the inlet 70 enters the smoke-generating section 30 and mixes with the aerosol. When the extension direction of the inlet 70 forms an acute angle with the first direction Z and extends towards the filter section 10, most of the gas entering through the inlet 70 flows towards the filter section 10, which can reduce the temperature of the filter section 10. In summary, the triangular inlet design can be comprehensively adjusted based on the main airflow direction, temperature control at the filter section 10, airflow rate, and aerosol volume in actual use to improve the sensory quality of the aerosol-generated product 90.

[0067] In some embodiments, refer to Figures 2 to 7 As shown, when the aerosol generating product 90 is in use, air outside the aerosol generating product 90 enters the first flow channel 23 through the drainage hole 70 and moves towards the smoke generating section 30 to extract aerosols. After the air and aerosols mix, they flow towards the filter section 10 through the second flow channel 24 formed inside the second tube 22. When a through hole 25 is provided on the second tube 22, air outside the aerosol generating product 90 enters the second flow channel 24 through the drainage hole 70 and the through hole 25. After the air mixes with the aerosols in the second flow channel 24, they flow together towards the filter section 10.

[0068] In some embodiments, refer to Figure 2 As shown, the outer tube 50 includes a first tube 51 and a second tube 52. The first tube 51 is made of, for example, tipping paper, and the second tube 52 is made of, for example, 65g / m³ paper. 2 Made of molded paper; the second tube 52 wraps the cooling section 20, the smoke-generating section 30 and the sealing section 40, the first tube 51 wraps the filter section 10 and the end of the second tube 52 away from the sealing section 40.

[0069] This application provides an aerosol generating article 90, as shown in the embodiments below. Figure 11 and Figure 12As shown, the aerosol generating product 90 includes a filter section 10, a cooling section 20, a smoke generating section 30, and a sealing section 40 arranged sequentially, as well as an outer tube 50 that surrounds the filter section 10, cooling section 20, smoke generating section 30, and sealing section 40. A drainage hole 70 is provided on the outer tube 50 corresponding to the cooling section 20. Because the ventilation rate of the sealing section 40 is relatively small, it can prevent air from passing through the sealing section 40 and entering the smoke generating section 30; therefore, the aerosol generating product 90 receives air through the drainage hole 70. Air is guided through the guide hole 70 and flows rapidly towards the smoke-generating section 30, mixing with the heated aerosol to lower its temperature. The cooled aerosol is then drawn out. The guide hole 70 increases aerosol extraction efficiency, increases the amount of aerosol, and ensures uniform mixing of air and aerosol, thus improving sensory quality. Furthermore, by preventing cold air from passing through the smoke-generating section 30, the temperature of the smoke-generating section 30 is prevented from dropping due to air intake from the sealing section 40, which would affect the heating curve and reduce the difficulty of temperature control in the smoke-generating section 30. During the flow of cold air through the guide hole 70 towards the smoke-generating section 30, the temperature of the second tube 22 is also reduced, preventing burns to the mouthpiece.

[0070] This application embodiment also provides an aerosol generation system, which includes a heating device 80 and an aerosol generation product 90 as described above; the heating device 80 is provided with a receiving cavity 81; the smoke-generating section 30 of the aerosol generation product 90 is sealed and inserted into the receiving cavity 81, and the drainage hole 70 is connected to the outside of the heating device 80.

[0071] In the aerosol generation system of this embodiment, the smoke-generating section 30 is sealed and inserted into the accommodating cavity 81. The heating device 80 heats the smoke-generating section 30 to generate aerosols from the aerosol matrix 32. The aerosol generation product 90 is air-intaken through the drainage hole 70, which is connected to the outside of the heating device 80. Air outside the aerosol generation product 90 is guided by the drainage hole 70 and flows rapidly towards the smoke-generating section 30, increasing aerosol extraction efficiency, increasing aerosol quantity, and ensuring uniform mixing of air and aerosol, thus improving sensory quality. Furthermore, since cold air does not pass through the smoke-generating section 30, the temperature of the smoke-generating section 30 is prevented from dropping due to air intake from the sealing section 40, which would affect the heating curve and reduce the difficulty of temperature control for the smoke-generating section 30. The aerosol generated by the smoke-generating section 30 has a certain temperature. As the aerosol flows through the second tube 22, it heats the second tube 22, causing its temperature to rise. As the cold air is guided to the smoke-generating section 30 through the drainage hole 70, it can also reduce the temperature of the second tube 22, thus avoiding the problem of scalding the mouth.

[0072] In some embodiments, the drainage hole 70 is exposed outside the heating device 80, that is, the drainage hole 70 can be seen from the outside of the heating device 80.

[0073] In other embodiments, a drainage hole 70 is also provided in the accommodating cavity 81, and the heating device 80 is provided with an air passage that communicates with the drainage hole 70.

[0074] In some embodiments, the heating device 80 is further provided with a heating element 82 and a sealing element 83; the heating element 82 is disposed around the periphery of the accommodating cavity 81 for heating the smoke-generating section 30 from the circumference toward the center; the sealing element 83 is disposed around the cavity wall of the accommodating cavity 81 and is located between the heating element 82 and the opening of the accommodating cavity 81, and the sealing element 83 seals at least a portion of the gap between the cavity wall of the accommodating cavity 81 and the aerosol generating article 90.

[0075] In use, the aerosol generation system of this embodiment pushes the smoke-generating section 30 and sealing section 40 of the aerosol generation product 90 into the receiving cavity 81. A portion of the cooling section 20 of the aerosol generation product 90 can be inserted into the receiving cavity 81; alternatively, the cooling section 20 can be completely exposed outside the heating device 80. When the aerosol generation product 90 is assembled, the heating element 82 faces the smoke-generating section 30, and the drainage hole 70 is exposed outside the heating device 80. Then, the heating element 82 heats the smoke-generating section 30 from the circumference towards the center. After preheating for a certain period, the aerosol matrix 32 within the smoke-generating section 30 generates aerosol. The aerosol flows through the aerosol channel in the cooling section 20 into the filter section 10 and then flows out through the filter section 10.

[0076] In conventional technology, the heating device 80 is equipped with an air inlet duct that introduces cold air into the sealing section 40. The cold air then enters the aerosol-generating product 90 from the sealing section 40. After passing through the smoke-generating section 30, the cold air mixes with the aerosol generated in the smoke-generating section 30 and carries the aerosol out of the filter section 10. The cold air entering the smoke-generating section 30 causes its temperature to drop, resulting in the actual heated temperature of the smoke-generating section 30 being lower than the preset temperature. This necessitates real-time adjustments to the heating power to maintain the actual temperature of the smoke-generating section 30, increasing the difficulty of temperature control.

[0077] In this embodiment, cold air enters the cooling section 20 through the drainage hole 70 on the outer pipe 50, extracting and mixing with the aerosol. The cold air does not affect the temperature of the smoke-generating section 30, ensuring that the temperature of the smoke-generating section 30 is essentially consistent with the ideal temperature. Furthermore, the cooling section 20 and the drainage hole 70 work together to control the airflow rate and velocity, achieving the ideal smoke concentration and rate.

[0078] In some embodiments, the sealing element 83 may be a sealing ring or other sealing structure. The specific structure of the sealing element 83 is not limited in the embodiments of this application. When in use, the sealing element 83 needs to be placed on the upstream side of the drainage hole 70 to ensure that the smoke-generating section 30 can be sealed and inserted into the receiving cavity 81. In this way, the entire smoke-generating section 30 is heated by the heating element 82 to generate aerosol, and the smoke-generating section 30 is heated in a relatively low oxygen environment.

[0079] The above examples illustrate this application only to aid understanding and are not intended to limit its scope. Those skilled in the art to which this application pertains can make various simple deductions, modifications, or substitutions based on the ideas presented.

Claims

1. An aerosol-generating product, characterized in that, It includes a filtration section, a cooling section, a smoke-generating section, a sealing section, and an outer tube that wraps around the filtration section, the cooling section, the smoke-generating section, and the sealing section; the filtration section, the cooling section, the smoke-generating section, and the sealing section are arranged sequentially along a first direction; The cooling section is provided with a first tube and a second tube. The first tube is located on the outer periphery of the second tube. A first flow channel is formed between the first tube and the second tube. The second tube is hollow inside to form a second flow channel. The second flow channel is used to allow the aerosol generated by the smoke-generating section to flow into the filtration section. The first tube is connected to the outer tube. The cooling section also includes multiple drainage holes, which penetrate the outer tube and the first tube body and communicate with the first flow channel. The drainage holes are arranged at intervals along the circumference of the cooling section. At least some of the drainage holes have an upright triangle in cross-section perpendicular to the extension direction of the drainage holes. The base of the upright triangle is closer to the smoke-generating section than the apex. Air outside the aerosol generating product is guided by the drainage holes and flows towards the smoke-generating section at an accelerated speed. The ventilation rate ratio C of the sealing section to the cooling section satisfies: C≤5%.

2. The aerosol-generating product as described in claim 1, characterized in that, Along the extension direction perpendicular to the drainage holes, the total cross-sectional area S1 of all the drainage holes satisfies: 0.001 mm. 2 ≤S1≤0.05mm 2 ; and / or, In the cross-section of the drainage hole, the maximum spacing M between the holes satisfies: 0 < M ≤ 60 μm.

3. The aerosol-generating product as described in claim 1, characterized in that, The distance N from the center of the drainage hole to the end face of the filter section away from the smoke-generating section satisfies: 15mm≤N≤35mm.

4. The aerosol-generating product as described in claim 1, characterized in that, The ventilation rate Q of the cooling section satisfies: 5% ≤ Q ≤ 50%.

5. The aerosol-generating product as described in claim 1, characterized in that, The second tube has a through hole in its wall, which connects the first flow channel and the second flow channel through the second tube. The through hole is located on the extension line of the drainage hole.

6. The aerosol-generating product as described in claim 1, characterized in that, The cooling section is further provided with a connecting layer located between the first tube and the second tube. The connecting layer connects the first tube and the second tube and separates multiple isolated first flow channels between the first tube and the second tube.

7. The aerosol-generating article according to any one of claims 1-6, characterized in that, The multiple drainage holes are arranged in multiple rings along the circumference of the outer tube. The multiple rings of holes are spaced apart along the first direction, and the cross-section of the ring of holes closest to the smoke-generating section is an upright triangle.

8. The aerosol-generating article as described in claim 7, characterized in that, The angle between the extension direction of the drainage hole and the first direction is an acute angle.

9. The aerosol-generating article as described in claim 7, characterized in that, The ring of holes closest to the filter section has an inverted triangular cross-section perpendicular to the extension direction of the drainage hole.

10. An aerosol generation system, characterized in that, Includes a heating device and an aerosol-generating article as described in any one of claims 1-9; the heating device is provided with a receiving cavity; The smoke-generating section of the aerosol-generating product is sealed and inserted into the accommodating cavity, and the drainage hole is connected to the outside of the heating device.

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