Aerosol-generating article and aerosol-generating system
By incorporating heat-conducting holes and drainage holes into the aerosol-generated product, the problem of insufficient aerosol volume during the initial suction phases was resolved, resulting in a better sensory experience and temperature control, while avoiding temperature fluctuations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HG INNOVATION LTD
- Filing Date
- 2025-04-28
- Publication Date
- 2026-04-17
AI Technical Summary
Existing aerosol-generating products produce a small amount of aerosol during the first few suctions, resulting in poor sensory quality.
An aerosol generating product was designed, comprising a smoke-generating section, a sealing section, a downstream section, and an outer tube. The outer tube is provided with heat-conducting holes and flow-draining holes. The heat-conducting holes facilitate rapid heating of the aerosol matrix, while the flow-draining holes control the entry of cold air to avoid temperature drop and burns.
This increases the amount of aerosol generated during the first few inhalations, improving the sensory quality for users and avoiding the problem of scalding the mouth due to unstable temperature.
Smart Images
Figure CN224125263U_ABST
Abstract
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 create aerosols by heating rather than burning an aerosol-generating matrix. Specifically, the aerosol-generating matrix is heated to produce aerosols, which are then released from the filter section of the aerosol-generating product along with the air drawn into it. However, the amount of aerosol produced by these products during the first few draws is relatively small, failing to adequately meet user needs and resulting in poor sensory quality. Utility Model Content
[0003] This application provides an aerosol generating article and an aerosol generating system to solve or partially solve the problem that current aerosol generating articles produce a small amount of aerosol during the first few aspirations, resulting in poor sensory quality.
[0004] In one embodiment, an aerosol generating article is provided, comprising a smoke-generating section, a sealing section, a downstream section, and an outer tube enclosing the smoke-generating section, the sealing section, and the downstream section; the smoke-generating section is located downstream of the sealing section and connected to the sealing section, the smoke-generating section comprising an aerosol matrix that can generate aerosols when heated and an encapsulation layer encapsulating the aerosol matrix; the sealing section is located upstream of the aerosol generating article, the downstream section is located downstream of the aerosol generating article, and an aerosol channel is formed in the downstream section for the aerosols generated by the smoke-generating section to pass through; the outer tube is provided with a drainage hole and a heat-conducting hole, the drainage hole and the heat-conducting hole respectively penetrate the outer tube, and the drainage hole penetrates to connect with the aerosol channel, the heat-conducting hole being at least partially opposite the encapsulation layer.
[0005] In some embodiments, the distance H from the heat-conducting hole to the downstream end face of the sealing section satisfies: H≤2mm.
[0006] In some embodiments, the maximum spacing L between the walls of the heat-conducting holes in the cross-section of the heat-conducting holes satisfies: 0 < L ≤ 50 μm.
[0007] In some embodiments, the heat-conducting hole has a cross-section that is one of a circular through hole, a triangular through hole, a quadrilateral through hole, or an elliptical through hole along the extension direction perpendicular to the heat-conducting hole; and / or, there are 4 to 30 heat-conducting holes; and / or, a plurality of heat-conducting holes are spaced apart along the circumference of the outer tube.
[0008] In some embodiments, the maximum spacing M between the walls of the drainage holes in the cross-section of the drainage holes satisfies: 0 < M ≤ 60 μm; and / or, the distance N from the center of the drainage hole to the end face of the downstream section away from the smoke-generating section satisfies: 15 mm ≤ N ≤ 35 mm; and / or, along the extension direction perpendicular to the drainage holes, the total cross-sectional area S1 of all the drainage holes satisfies: 0.001 mm². 2 ≤S1≤0.05mm 2 .
[0009] In some embodiments, the cross-section of the drainage hole is one of an upright isosceles triangle or an inverted isosceles triangle along the extension direction perpendicular to the drainage hole; and / or, there are 6 to 32 drainage holes, and the plurality of drainage holes are spaced apart along the circumference of the outer tube; and / or, the plurality of drainage holes are arranged in multiple rings along the circumference of the outer tube, and the multiple rings are spaced apart along the extension direction of the outer tube.
[0010] In some embodiments, the downstream section includes a filtration section and a cooling section. The filtration section is located downstream of the aerosol-generating article, and the cooling section is located between the filtration section and the smoke-generating section. The outer tube also encloses the filtration section and the cooling section. The cooling section has a first tube and a second tube. The first tube is connected to the outer tube and is located on the periphery of the second tube. A first flow channel is formed between the first tube and the second tube. The second tube is used to allow the aerosol generated by the smoke-generating section to flow into the filtration section. The drainage hole penetrates the outer tube and the first tube and communicates with the first flow channel to introduce external air into the smoke-generating section through the first flow channel.
[0011] In some embodiments, the second tube body is provided with a through hole, which penetrates the second tube body to connect the first flow channel and the interior of the second tube body, and the through hole is located on the extension line of the drainage hole.
[0012] In some embodiments, the ventilation rate C of the sealing section to the cooling section with the drainage hole satisfies: 0% ≤ C ≤ 5%; and / or, the ventilation rate Q of the cooling section satisfies: 5% ≤ Q ≤ 50%.
[0013] In one embodiment, an aerosol generation system is also provided, comprising a heating device and an aerosol generation article as described above; the heating device is provided with a heating element, a receiving cavity, and a sealing element; at least a smoke-generating section and a sealing section of the aerosol generation article are inserted into the receiving cavity; the heating element is arranged around the periphery of the receiving cavity for heating the smoke-generating section from the circumference toward the center; the sealing element is arranged around the cavity wall of the receiving cavity and located between the heating element and the opening of the receiving cavity, and the sealing element seals at least a portion of the gap between the cavity wall of the receiving cavity and the aerosol generation article.
[0014] According to the aerosol generation product of the above embodiments, the heat-conducting holes on the outer tube facilitate heat conduction, allowing heat to quickly enter the outer tube to rapidly heat the aerosol matrix, avoiding the problem of insufficient aerosol volume during the first few suctions and improving the user's sensory quality. Furthermore, in this embodiment, air enters the outer tube through the drainage holes, and the sealing section does not require air intake. This avoids the problem of cold air entering the sealing section causing a temperature drop in the smoke-generating section, resulting in a lower actual heated temperature than the preset temperature, a smaller aerosol volume, and the increased difficulty in temperature control due to the need for real-time adjustment of heating power to ensure the actual temperature of the smoke-generating section. The heat-conducting holes are at least partially aligned with the coating layer but do not penetrate it, preventing the excessively thick coating layer from generating paper-like gases when heated. It also allows heat to more easily penetrate the coating layer into the aerosol matrix and prevents leakage of the aerosol matrix or aerosols or condensate generated by the aerosol generation product from the surrounding area, thus avoiding contamination of the heating device.
[0015] When aerosol-generated products are used, the aerosol generated by the heating of the aerosol matrix flows out through the aerosol channel in the downstream section. The drainage hole on the outer tube extends into the aerosol channel and introduces gas into the aerosol channel, which can prevent the downstream section from becoming too hot due to the high temperature of the aerosol and thus avoid scalding the mouth. Attached Figure Description
[0016] Figure 1 A schematic diagram of the structure of aerosol-generated products;
[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 a CC cross-section.
[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; 60. Heat conducting hole; 70. Drainage hole;
[0030] 80. Heating device; 81. Receiving cavity; 82. Heating element; 83. Sealing element;
[0031] 90. Aerosol-generated products; 91. Downstream section. 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 article 90 includes a smoke-generating section 30, a sealing section 40, a downstream section 91, and an outer tube 50 that encloses the smoke-generating section 30, the sealing section 40, and the downstream section 91; the smoke-generating section 30 is located downstream of the sealing section 40 and is connected to the sealing section 40; further refer to Figure 3As shown, the smoke-generating section 30 includes an aerosol matrix 32 that can generate aerosols when heated and a coating layer 31 that encapsulates the aerosol matrix 32; the sealing section 40 is located at the upstream end of the aerosol-generating product 90, and the downstream section 91 is located at the downstream end of the aerosol-generating product 90. An aerosol channel for the aerosols generated by the smoke-generating section 30 to pass through is formed in the downstream section 91; the outer tube 50 is provided with a drainage hole 70 and a heat-conducting hole 60. The heat-conducting hole 60 is located upstream of the drainage hole 70. The drainage hole 70 and the heat-conducting hole 60 respectively penetrate the outer tube 50, and the drainage hole 70 penetrates to the aerosol channel. The heat-conducting hole 60 is at least partially facing the coating layer 31, and the heat-conducting hole 60 faces the end of the smoke-generating section 30 near the sealing section 40.
[0037] In this embodiment, upstream and downstream refer to the flow direction of aerosol within the aerosol generating article 90. The sealing section 40 is located at the upstream end of the aerosol generating article 90, and the downstream section 91 is located at the downstream end. The aerosol flows out from the sealing section 40 side to the downstream section 91 side. Along the length direction Z of the aerosol generating article 90, the sealing section 40, the smoke generating section 30, and the downstream section 91 are arranged sequentially. The sealing section 40, located at the upstream end of the aerosol generating article 90, 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 coating layer 31 in the smoke generating section 30 wraps around the aerosol matrix 32, preventing leakage of the aerosol matrix 32 and preventing contamination of the heating device 80 due to leakage, and also has a heat-conducting function.
[0038] In this embodiment, the aerosol generating article 90 has heat-conducting holes 60 on its outer tube 50 to facilitate heat conduction, allowing heat to quickly enter the outer tube 50 and rapidly heat the aerosol matrix 32. This avoids the problem of insufficient aerosol volume during the first few suctions, improving the user's sensory experience. Furthermore, in this embodiment, air enters the outer tube 50 through the drainage holes 70, eliminating the need for air intake in the sealing section 40. This avoids the problem of cold air entering the sealing section 40 causing a temperature drop in the smoke-generating section 30, resulting in a lower actual heated temperature than the preset temperature, leading to insufficient aerosol volume. It also avoids the increased difficulty of temperature control due to the need for real-time adjustment of the heating power to maintain the actual temperature of the smoke-generating section 30. The heat-conducting hole 60 is at least partially aligned with the wrapping layer 31 and does not penetrate the wrapping layer 31. This can prevent the excessively thick wrapping layer outside the aerosol matrix 32 from being heated and generating paper impurities. It can also make it easier for heat to penetrate the wrapping layer 31 and enter the aerosol matrix 32. Furthermore, it can prevent the aerosol matrix 32 inside the wrapping layer 31 or the aerosol or condensate generated by the aerosol matrix 32 from leaking from the aerosol-generated product 90 and contaminating the heating device 80.
[0039] When the aerosol-generating product 90 is in use, the aerosol generated by the heating of the aerosol matrix 32 flows out through the aerosol channel in the downstream section 91. The drainage hole 70 provided on the outer tube 50 extends into the aerosol channel and introduces gas into the aerosol channel, which can prevent the downstream section 91 from being too hot due to the high temperature of the aerosol.
[0040] In some embodiments, the distance H from the heat-conducting hole 60 to the downstream end face of the sealing section 40 satisfies: H ≤ 2 mm. This distance is relatively moderate, allowing the heat-conducting hole 60 to transfer heat to the smoke-generating section 30, thus effectively heating the smoke-generating section 30. When the distance from the heat-conducting hole 60 to the downstream end face of the sealing section 40 is greater than 2 mm, the distance is too great, resulting in poor heating of the portion of the smoke-generating section 30 between the heat-conducting hole 60 and the sealing section 40, affecting the amount of aerosol generated by the aerosol matrix 32.
[0041] Understandably, in practical applications, the distance H from the heat conduction hole 60 to the downstream end face of the sealing section 40 can be set according to the specific application requirements. For example, H can be one of 2mm, 1.8mm, 1.6mm, 1.4mm, 1.2mm, 1mm, 0.8mm, 0.6mm, 0.4mm, 0.2mm, or 0mm.
[0042] In some embodiments, part of the heat-conducting hole 60 faces the smoke-generating section 30 and part faces the sealing section 40, so that the heat-conducting hole 60 can also achieve a good heat conduction effect.
[0043] When all the heat conduction holes 60 face the sealing section 40, the sealing section 40 will affect the heat transfer and the heating effect on the smoke-generating section 30.
[0044] In some embodiments, refer to Figure 1 As shown, in the cross-section of the heat-conducting hole 60, the maximum spacing L between the hole walls of the heat-conducting hole 60 satisfies: 0 < L ≤ 50 μm. In this embodiment, when the maximum spacing L between the hole walls of the heat-conducting hole 60 is within the above range, the size of the heat-conducting hole 60 is relatively moderate, effectively ensuring that heat is transferred to the smoke-generating section 30. When the heat-conducting hole 60 is greater than 50 μm, the heat-conducting hole 60 is too large, which can easily lead to the leakage of aerosol matrix 32 and contamination of the heating device 80.
[0045] Understandably, in practical applications, the maximum spacing L of the heat conduction hole 60 is set according to the specific requirements of the application. For example, L can be one of 50μm, 45μm, 40μm, 35μm, 30μm, 25μm, 20μm, 15μm, 10μm, 5μm, or 1μm.
[0046] In some embodiments, along the extension direction perpendicular to the heat-conducting hole 60, the cross-section of the heat-conducting hole 60 is one of a circular through hole, a triangular through hole, a quadrilateral through hole, or an elliptical through hole. Furthermore, in the embodiments of this application, the above-mentioned shapes of the heat-conducting hole 60 can all meet the usage requirements of the heat-conducting hole 60, that is, effectively conduct heat to the smoke-generating section 30. (Refer to...) Figure 1 It shows a schematic diagram of the structure of the heat conduction hole 60, which has a circular through hole in cross section.
[0047] In some embodiments, the heat conduction holes 60 are provided with 4 to 30. When the number of heat conduction holes 60 in the embodiments of this application is within the above range, the heat on the smoke generation section 30 is moderate, and the aerosol matrix 32 in the smoke generation section 30 is effectively heated to generate aerosol.
[0048] Understandably, in practical applications, the number of heat conduction holes 60 is set according to the specific needs of use. For example, the number of heat conduction holes 60 can be one of 4, 5, 6, 7, 8, 10, 12, 15, 17, 20, 22, 25, or 30.
[0049] In some embodiments, refer to Figure 1 As shown, multiple heat-conducting holes 60 are spaced apart along the circumference of the outer tube 50, so that heat can enter the outer tube 50 relatively evenly and uniformly heat the aerosol matrix 32 in the smoke-generating section 30. The multiple heat-conducting holes 60 can be evenly distributed along the circumference of the outer tube 50.
[0050] In some embodiments, refer to Figure 10 As 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, and after mixing with the aerosol, the concentration of the 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.
[0051] 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.
[0052] In some embodiments, refer to Figure 2 and Figure 4As shown, the distance N from the center of the drainage hole 70 to the end face of the downstream section 91 away from the smoke-generating section 30 satisfies: 15mm≤N≤35mm.
[0053] In this embodiment of the application, when the distance N from the center of the drainage hole 70 to the end face of the downstream section 91 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 avoid covering the drainage hole 70 during the suction process.
[0054] Understandably, in practical applications, the distance N from the center of the drainage hole 70 to the end face of the downstream section 91 away from the smoke-generating section 30 is set according to the specific application requirements. For example, N can be one of 15mm, 17mm, 19mm, 20mm, 22mm, 24mm, 26mm, 28mm, 30mm, 32mm, 34mm, or 35mm.
[0055] 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 aforementioned 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, and after mixing with the aerosol, the concentration of the 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, the total cross-sectional area S1 of all drainage holes 70 is too small, and the flow rate of cold air entering through the drainage holes 70 is too small, which can easily lead to scalding the mouth.
[0056] 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 20.045mm 2 0.05mm 2 one of the.
[0057] In some embodiments, the cross-section of the drainage hole 70 is one of an upright isosceles triangle or an inverted isosceles triangle along the extension direction perpendicular to the drainage hole 70.
[0058] 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, as shown in the reference. Figure 10 As shown, an inverted isosceles triangle refers to an isosceles triangle whose vertex angle points towards the downstream end of the aerosol-generating product 90. (Refer to...) Figure 9 As shown. Upright and inverted isosceles triangles can increase the air intake rate of the inlet 70, resulting in more uniform aerosol mixing inside the aerosol-generating product 90. The principle is as follows: Compared to circular jets, triangular jets can more effectively entrain surrounding fluid, meaning more efficient mixing. The main mechanism by which triangular jets enhance mixing lies in the non-uniform curvature and the interaction between azimuth and flow vortices, causing self-induced deformation of the vortex rings. Due to this 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 major axis plane and the maximum radius of curvature appears in the minor axis plane, the minor 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 exhibits a nozzle-like shape, but continuously rotates around the central axis at the characteristic angle of the jet nozzle.
[0059] 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.
[0060] 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.
[0061] In some embodiments, a plurality of drainage holes 70 are arranged in multiple rings along the circumference of the outer tube 50, and the multiple rings are spaced apart along the extending direction of the outer tube 50. In this way, the drainage holes 70 can introduce cold air into the aerosol channel relatively uniformly, and mix it with the aerosol relatively uniformly, which can improve the sensory quality.
[0062] 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 angle between the extension direction of the drainage hole 70 and the length direction Z is acute, and the drainage hole 70 is upright; refer to Figure 4 and Figure 5 It shows a schematic diagram of the structure in which the extension direction of the drainage hole 70 is perpendicular to the length direction Z, and the drainage hole 70 is upright; refer to Figure 6 It shows a schematic diagram of a structure where the angle between the extension direction of the upstream drainage hole 70 and the length direction Z is acute, and the extension direction of the downstream drainage hole 70 is perpendicular to the length 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 length direction Z, and the drainage hole 70 is upright.
[0063] 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 guide hole 70 and moves towards the smoke generating section 30 to extract aerosols. After mixing with the aerosols, the air flows towards the filter section 10 through the second flow channel 24. When a through hole 25 is provided on the second tube 22, air outside the aerosol generating product 90 also enters the second flow channel 24 through the guide hole 70 and the through hole 25. After mixing with the aerosols in the second flow channel 24, the air flows together towards the filter section 10.
[0064] In some embodiments, the downstream section 91 includes a filtration section 10 and a cooling section 20. The filtration section 10 is located downstream of the aerosol generating article 90, and the cooling section 20 is located between the filtration section 10 and the smoke generating section 30. The outer tube 50 also wraps the filtration section 10 and the cooling section 20.
[0065] In this embodiment, the filter section 10 is used for filtration and is made of a filter material. This filter material can be selected according to 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. The cooling section 20 is provided with an aerosol channel, through which the aerosol generated by the smoke-generating section 30 flows out through the filter section 10.
[0066] In some embodiments, the cooling section 20 is provided with a first tube 21 and a second tube 22. The first tube 21 is connected to the outer tube 50, and the first tube 21 wraps around the second tube 22. A first flow channel 23 is formed between the first tube 21 and the second tube 22. The second tube 22 is surrounded by a second flow channel 24. The first flow channel and the second flow channel are constructed as aerosol channels. In addition, the drainage hole 70 passes through the outer tube 50 and the first tube 21 and communicates with the first flow channel 23 to introduce external air into the smoke generation section 30 through the first flow channel 23.
[0067] In this embodiment, the first flow channel 23 and the second flow channel 24 are configured as aerosol channels, which together serve as the passage for the aerosols generated by the smoke-generating section 30.
[0068] When the aerosol generating product 90 is in use, cold air flows into the first flow channel 23 through the inlet 70. The cold air merges with the aerosol in the first flow channel 23 to reduce the temperature of the aerosol. The cold air can also cool the second tube 22, thereby avoiding the situation where the filter section 10 is too hot due to the high temperature of the aerosol, which could cause burns.
[0069] In some embodiments, the cooling section 20 is configured as a double-layer corrugated structure, as can be referred to Figure 8 As shown, the outer layer is connected to the outer tube 50, and a first flow channel 23 is formed between the outer layer and the inner layer, while the inner layer forms a second flow channel 24. The outer layer and the inner layer are connected by a connecting layer 26 to separate the first flow channel 23 from the first tube body 21 and the second tube body 22, thus isolating them from each other.
[0070] 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.
[0071] In some embodiments, the second tube 22 is provided with a through hole 25, which penetrates the second tube 22 to connect the first flow channel 23 and the second flow channel 24. The through hole 25 is located on the extension line of the drainage hole 70.
[0072] 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, and after mixing with the aerosol, the concentration of the aerosol is moderate, resulting in good sensory quality. If 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. If 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.
[0073] 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%.
[0074] In some embodiments, the ventilation rate C of the sealing section 40 and the cooling section 20 with the drainage hole 70 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.
[0075] Understandably, in practical applications, the ratio C of the ventilation rate of the sealing section 40 to the cooling section 20 with drainage holes 70 is set according to the specific application requirements. For example, C is one of 0%, 0.5%, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, and 5%.
[0076] In some embodiments, the sealing section 40 is substantially airtight to prevent aerosols from entering the heating device 80 through the sealing section 40 and contaminating the heating device 80. The material of the sealing section 40 can 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.
[0077] In some embodiments, the outer tube 50 includes a first tube 51 and a second tube 52, wherein 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.
[0078] 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. The outer tube 50 has a drainage hole 70 corresponding to the cooling section 20 and a heat-conducting hole 60 corresponding to the smoke generating section 30. Due to the placement of the drainage hole 70 and the heat-conducting hole 60, the aerosol generating product 90 produces a larger amount of aerosol during the first few suctions, and avoids scalding the mouth, effectively improving the sensory quality of use.
[0079] This application embodiment also provides an aerosol generation system, which includes a heating device 80 and an aerosol generation article 90 as described above; the heating device 80 is provided with a heating element 82, a receiving cavity 81 and a sealing element 83; at least a smoke-generating section 30 and a sealing section 40 of the aerosol generation article 90 are inserted into the receiving cavity 81; the heating element 82 is arranged around the periphery of the receiving cavity 81 for heating the smoke-generating section 30 from the circumference toward the center; the sealing element 83 is arranged around the cavity wall of the receiving cavity 81 and is located between the heating element 82 and the opening of the receiving cavity 81, and the sealing element 83 seals at least a portion of the gap between the cavity wall of the receiving cavity 81 and the aerosol generation article 90.
[0080] 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. "Exposed" means that the drainage hole 70 is visible from the outside of the heating device 80. Then, the heating element 82 heats the smoke-generating section 30 from 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.
[0081] In this embodiment, the heat conduction holes 60 on the outer tube 50 of the aerosol generating product 90 facilitate heat conduction and allow heat to quickly enter the outer tube 50 to act rapidly on the smoke generating section 30. The sealing section 40 is basically airtight, so there is no need to set up a corresponding air passage in the heating device 80. The setting of the sealing element 83 prevents air from entering between the cavity wall of the accommodating cavity 81 and the aerosol generating product 90. This can avoid the temperature of the smoke generating section 30 dropping due to air entering the sealing section 40 of the aerosol generating product 90, which would affect the heating curve and reduce the temperature control difficulty of the heating device 80.
[0082] 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.
[0083] In this embodiment, cold air enters the cooling section 20 through the drainage hole 70 on the outer pipe 50, mixes with the heated aerosol, and the cooled aerosol is then drawn out from the filter section 10. The temperature of the smoke generation section 30 is basically consistent with the ideal. Furthermore, the cooling section 20 and the drainage hole 70 work together to control the airflow and velocity entering the cooling section 20, thereby achieving the ideal smoke concentration and rate.
[0084] Therefore, the aerosol generation system in this embodiment of the application will not have the problem of producing a small amount of aerosol in the first few suctions, which is difficult to meet the user's needs; nor will it have the problem of burning the mouth during suction, thus effectively improving the sensory quality of use.
[0085] 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 is preferably positioned upstream of the drainage hole 70 to ensure that the smoke-generating section 30 can be sealed and inserted into the receiving cavity 81. This ensures that the entire smoke-generating section 30 is heated by the heating element 82 to generate aerosol, and that the smoke-generating section 30 is heated in a relatively low-oxygen environment.
[0086] 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 article, characterized in that, It includes a smoke-generating section, a sealing section, a downstream section, and an outer tube that wraps the smoke-generating section, the sealing section, and the downstream section; The smoke-generating section is located downstream of the sealing section and is connected to the sealing section. The smoke-generating section includes an aerosol matrix that can generate aerosols when heated and a coating layer that encapsulates the aerosol matrix. The sealing section is located at the upstream end of the aerosol generating product, and the downstream section is located at the downstream end of the aerosol generating product. An aerosol channel is formed in the downstream section for the aerosol generated by the smoke generating section to pass through. The outer tube is provided with a drainage hole and a heat conduction hole, the drainage hole and the heat conduction hole respectively penetrate the outer tube, and the drainage hole penetrates to connect the aerosol channel, and the heat conduction hole is at least partially facing the coating layer.
2. An aerosol-generating article according to claim 1, wherein, The distance H from the heat-conducting hole to the downstream end face of the sealing section satisfies: H≤2mm.
3. An aerosol-generating article according to claim 1, wherein, In the cross-section of the heat-conducting hole, the maximum spacing L between the holes satisfies: 0 < L ≤ 50 μm.
4. The aerosol-generating article of claim 1, wherein, Along the extension direction perpendicular to the heat-conducting hole, the cross-section of the heat-conducting hole is one of a circular through-hole, a triangular through-hole, a quadrilateral through-hole, or an elliptical through-hole; and / or, The heat-conducting holes are provided with 4 to 30; and / or, The plurality of heat-conducting holes are arranged at intervals along the circumference of the outer tube.
5. The aerosol-generating product as described in claim 1, characterized in that, In the cross-section of the drainage hole, the maximum spacing M between the hole walls satisfies: 0 < M ≤ 60 μm; and / or, The distance N from the center of the drainage hole to the end face of the downstream section away from the smoke-generating section satisfies: 15mm ≤ N ≤ 35mm; and / or, 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 ≤ 0.05 mm 2 .
6. The aerosol-generating product as described in claim 1, characterized in that, Along the extension direction perpendicular to the drainage hole, the cross-section of the drainage hole is one of an upright isosceles triangle and an inverted isosceles triangle; and / or, The drainage holes are provided in numbers of 6 to 32, and multiple drainage holes are spaced apart along the circumference of the outer tube; and / or, The multiple drainage holes are arranged in a multi-ring pattern along the circumference of the outer tube, and the multi-ring holes are spaced apart along the extension direction of the outer tube.
7. An aerosol-generating article according to any one of claims 1 to 6, wherein, The downstream section includes a filtration section and a cooling section. The filtration section is located downstream of the aerosol generating product, and the cooling section is located between the filtration section and the smoke generating section. The outer tube also wraps around the filtration section and the cooling section. The cooling section includes a first tube and a second tube. The first tube is connected to the outer tube and 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 used to allow aerosols generated in the smoke-generating section to flow into the filtration section. The drainage hole penetrates the outer tube and the first tube body and communicates with the first flow channel to introduce external air into the smoke-generating section through the first flow channel.
8. An aerosol-generating article according to claim 7, wherein, The second tube body is provided with a through hole, which penetrates the second tube body and connects the first flow channel and the interior of the second tube body. The through hole is located on the extension line of the drainage hole.
9. An aerosol-generating article according to claim 7, wherein, The ventilation rate ratio C of the sealing section to the cooling section with the drainage holes satisfies: 0% ≤ C ≤ 5%; and / or, The ventilation rate Q of the cooling section satisfies 5% ≤ Q ≤ 50%.
10. An aerosol-generating system comprising, 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 heating element, a receiving cavity, and a sealing element; At least a smoke-generating section and a sealing section of the aerosol-generating product are inserted into the accommodating cavity; The heating element is arranged around the periphery of the accommodating cavity to heat the smoke-generating section from the circumference toward the center. The sealing element is annularly disposed on the cavity wall of the accommodating cavity and located between the heating element and the opening of the accommodating cavity. The sealing element seals at least a portion of the gap between the cavity wall of the accommodating cavity and the aerosol generating article.