Aerosol generating product

Abstract

The invention relates to the technical field of aerosol generation, and provides an aerosol generation product which comprises a functional section and an aerosol generation matrix section. The functional section comprises a cooling section, a center channel and side channels are formed in the cooling section, and the side channels are located on the outer side of the center channel; a functional section is arranged at one end of the aerosol generating substrate section in the longitudinal direction, a transverse air channel extending in the transverse direction is formed in the aerosol generating substrate section, and the ends, close to the aerosol generating substrate section, of the center channel and the side channels communicate with the aerosol generating substrate section. The aerosol generating matrix section provided by the invention can reduce the temperature of aerosol.

Description

Technical Field

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

[0002] This section is intended to provide a background or context for the embodiments of the present application. No description herein is admitted to be prior art by virtue of its inclusion in this section.

[0003] The aerosol-generating substrate segment can form an aerosol by ignition or by heating without burning. Taking the aerosol-generating substrate segment that is heated without burning as an example, the aerosol-generating substrate segment is heated by an external heat source so that the aerosol-generating substrate segment is just heated to a degree sufficient to emit an aerosol, and the aerosol-generating substrate segment does not burn. When used, the aerosol-generating substrate segment is heated to release the aerosol.

[0004] In the related art, the aerosol released by the aerosol generating matrix segment has a relatively high temperature, which causes the problem of "burning the mouth". Summary of the invention

[0005] In view of this, embodiments of the present application hope to provide an aerosol generating product capable of reducing the temperature of aerosol.

[0006] To achieve the above objectives, the present application provides an aerosol generating product, comprising:

[0007] A functional section, wherein the functional section includes a cooling section, wherein the cooling section is formed with a central channel and side channels, and the side channels are located outside the central channel;

[0008] An aerosol generating matrix segment, wherein the functional segment is arranged at one end of the aerosol generating matrix segment along the longitudinal direction, the aerosol generating matrix segment forms a transverse airway extending along the transverse direction, and the central channel and the side channel are both connected to the aerosol generating matrix segment at one end close to the aerosol generating matrix segment.

[0009] In one embodiment, the aerosol generating substrate segment forms a longitudinal air channel extending in the longitudinal direction, at least one end of the longitudinal air channel passes through the end surface of the aerosol generating substrate segment in the longitudinal direction, and each of the transverse air channels is connected to at least one of the longitudinal air channels.

[0010] In one embodiment, the central channel and the side channel are respectively connected to at least one of the longitudinal air channels at one end close to the aerosol generating substrate segment.

[0011] In one embodiment, there are multiple side channels, and the multiple side channels are distributed at intervals along the circumference of the central channel.

[0012] In one embodiment, the side channel is formed inside the cooling section.

[0013] In one embodiment, the cooling section includes an outer peripheral layer, an inner peripheral layer and convex ridges, the outer peripheral layer is located laterally outside the inner peripheral layer and both are in a circular ring shape, the inner peripheral layer defines the central channel, and the convex ridges are arranged between the outer peripheral layer and the inner peripheral layer and jointly define the side channel.

[0014] In one embodiment, the temperature-lowering section comprises an annular top wall, and the annular top wall seals an end of the inner peripheral layer and the outer peripheral layer away from the aerosol generating substrate section.

[0015] In one embodiment, the cross-sectional area of ​​the side channel is 0.01 mm 2 Up to 0.5mm 2 .

[0016] In one embodiment, the central channel and the side channels both pass through the two end surfaces of the cooling section along the longitudinal direction; the aerosol generating product includes a first blocking member, which is arranged on the end surface of the cooling section along the longitudinal direction away from the aerosol generating matrix section, and the first blocking member is formed with a flow port connected to the central channel, and the first blocking member blocks the port of the side channel along the longitudinal direction away from the aerosol generating matrix section.

[0017] In one embodiment, the aerosol generating product includes a wrapping layer, and the outer peripheral surface of the aerosol generating matrix segment and the outer peripheral surface of the functional segment are both wrapped with the wrapping layer, and the wrapping layer has pores formed at the position corresponding to the cooling segment, and the pores are connected to the side channel.

[0018] In one embodiment, the number of the pores is 1 to 10; and / or,

[0019] The hydraulic diameter of the pores is 0.1 mm to 2.0 mm.

[0020] In one embodiment, the aerosol generating article comprises a second blocking member, which blocks an end surface of the aerosol generating substrate segment away from the cooling segment in the longitudinal direction.

[0021] In one embodiment, the side channel is formed on the outer peripheral surface of the cooling section.

[0022] In one embodiment, the number of the transverse air channels is multiple, and the multiple transverse air channels are distributed at intervals along the circumference of the aerosol generating substrate segment.

[0023] In one embodiment, the functional section includes a filtering section, and the filtering section is arranged at one end of the cooling section away from the aerosol generating substrate section in the longitudinal direction.

[0024] In one embodiment, the functional segment and the aerosol generating substrate segment are both cylindrical, wherein the longitudinal direction is the axial direction of the functional segment and the aerosol generating substrate segment or a direction parallel to the axial direction, and the longitudinal direction and the transverse direction are perpendicular to each other.

[0025] The present application provides an aerosol generating product. On the one hand, by forming a transverse airway extending in the transverse direction in the aerosol generating matrix segment, the transverse airway is not only conducive to the diffusion of the airflow in the transverse direction inside the aerosol generating matrix segment, thereby improving the uniformity of aerosol extraction and having a good consistency in taste; the transverse airway is also conducive to heat transfer, improving heating efficiency, and improving aerosol extraction efficiency. On the other hand, the side channels can provide more aerosol flow paths, reduce suction resistance, and improve aerosol extraction efficiency. Both the central channel and the side channels can increase the specific surface area, thereby increasing the heat exchange area, achieving rapid cooling, and avoiding the "hot mouth" problem that occurs when users inhale aerosols. The central channel and the side channels can also be used to cache aerosols, significantly improving the caching capacity of aerosols, so that the aerosol can be released stably, and the aerosol generating product has good puff-by-puff consistency, thereby improving the user's suction experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic cross-sectional view of a first aerosol generating article in an embodiment of the present application;

[0027] Figure 2 is a schematic cross-sectional view of a second aerosol generating article in one embodiment of the present application;

[0028] Figure 3 is a schematic cross-sectional view of a third aerosol generating article in an embodiment of the present application;

[0029] Figure 4 This is a schematic structural diagram of a first cooling section in an embodiment of the present application;

[0030] Figure 5 This is a schematic diagram of the structure of the second cooling section in one embodiment of the present application;

[0031] Figure 6 This is a schematic structural diagram of a third cooling section in an embodiment of the present application;

[0032] Figure 7 Schematic diagram of the structure of the first aerosol generating product in one embodiment of the present application.

[0033] Description of Reference Numerals

[0034] Aerosol generating product 100; functional section 1; cooling section 11; central channel 11a; side channel 11b; ventilation hole 11c; outer peripheral layer 111; inner peripheral layer 112; convex ridges 113; annular top wall 114; first barrier sheet 1131; second barrier sheet 1132; filtering section 12; aerosol generating matrix section 2; transverse airway 2a; longitudinal airway 2b; wrapping layer 3; air hole 3a; first blocking member 4; flow port 4a; second blocking member 5. DETAILED DESCRIPTION

[0035] It should be noted that, in the absence of conflict, the embodiments and technical features in the embodiments of the present application can be combined with each other, and the detailed description in the specific implementation method should be understood as an explanation of the purpose of the present application and should not be regarded as an improper limitation on the present application.

[0036] In this application, "a plurality" includes two and more than two. The unit "mm" is millimeter. The unit "mm 2 ” is square millimeters.

[0037] The present application embodiment provides an aerosol generating product, please refer to Figures 1 to 7 The aerosol generating article 100 comprises a functional section 1 and an aerosol generating substrate section 2. The functional section 1 comprises a cooling section 11, and the cooling section 11 is formed with a central channel 11a and a side channel 11b, and the side channel 11b is located outside the central channel 11a. The functional section 1 is provided at one end of the aerosol generating substrate section 2 in the longitudinal direction, and the aerosol generating substrate section 2 is formed with a transverse air channel 2a extending in the transverse direction, and a section of the central channel 11a and the side channel 11b close to the aerosol generating substrate section 2 are both connected to the aerosol generating substrate section 2.

[0038] Wherein, the transverse direction intersects the longitudinal direction. For example, the transverse direction may be perpendicular to the longitudinal direction or the transverse direction may be inclined relative to the longitudinal direction (i.e., the angle between the transverse direction and the longitudinal direction is not equal to 90°), for example, the transverse direction may also form a certain acute angle or obtuse angle with the longitudinal direction, i.e., the transverse direction is inclined relative to the longitudinal direction.

[0039] The aerosol generating product 100 provided in the embodiment of the present application, on the one hand, by forming a transverse airway 2a extending in the transverse direction in the aerosol generating matrix segment 2, the transverse airway 2a is not only conducive to the airflow to diffuse in the transverse direction inside the aerosol generating matrix segment 2, thereby improving the uniformity of aerosol extraction and having a good consistency of taste; the transverse airway 2a is also conducive to heat transfer, improving heating efficiency, and improving aerosol extraction efficiency. On the other hand, the side channel 11b can provide more aerosol flow paths, reduce suction resistance, and improve aerosol extraction efficiency. Both the central channel 11a and the side channel 11b can increase the specific surface area, thereby increasing the heat exchange area, achieving rapid cooling, and avoiding the "hot mouth" problem that occurs when the user inhales the aerosol. The central channel 11a and the side channel 11b can also be used to cache aerosols, significantly improving the cache capacity of aerosols, so that the aerosols can be released stably, and the aerosol generating product 100 has good consistency from mouth to mouth, thereby improving the user's suction experience.

[0040] It should be noted that, in the embodiment of the present application, the aerosol generating matrix segment 2 is used to generate aerosol by heating. Exemplarily, the aerosol generating matrix segment 2 can be used to generate aerosol by heating without burning. That is, the aerosol generating matrix segment 2 is heated below the ignition point to generate aerosol. The aerosol generating matrix segment 2 does not burn during the process of generating aerosol. In some application scenarios, the aerosol generating matrix segment 2 can be used to generate aerosol by ignition. The aerosol generating matrix segment 2 of the present application is more used to generate aerosol by heating without burning.

[0041] For example, in one embodiment, please refer to Figures 1 to 3 The functional section 1 includes a filtering section 12, which is arranged at one end of the cooling section 11 which is away from the aerosol generating substrate section 2 in the longitudinal direction. The filtering section 12 is used to filter the aerosol generated by the aerosol generating substrate section 2.

[0042] The aerosol generating article 100 is used for a user to inhale the aerosol generated by the aerosol generating matrix segment 2. For example, the user can inhale the filtered aerosol by holding the filter segment 12 in the mouth. The aerosol generated by the aerosol generating matrix segment 2 is transported to the filter segment 12 under the action of the suction negative pressure.

[0043] In one embodiment, please refer to Figures 1 to 3 The number of transverse air channels 2a is multiple, and the multiple transverse air channels 2a are spaced apart along the circumference of the aerosol generating matrix segment 2. On the one hand, the specific surface area of ​​the aerosol generating matrix segment 2 can be further increased, which is convenient for heat transfer and heating efficiency, so as to increase the aerosol generation rate; on the other hand, by providing multiple transverse air channels 2a, the diffusion efficiency of the airflow in the aerosol generating matrix segment 2 can be further improved, so that the aerosol extraction uniformity is better and the user's inhalation experience is good.

[0044] In one embodiment, please refer to Figures 1 to 3 The aerosol generating matrix segment 2 is formed with a longitudinal air channel 2b extending in the longitudinal direction, at least one end of the longitudinal air channel 2b passes through the end surface of the aerosol generating matrix segment 2 in the longitudinal direction, and each transverse air channel 2a is connected with at least one longitudinal air channel 2b. In this way, on the one hand, the airflow can enter the longitudinal air channel 2b through the side channel 11b and diffuse in the longitudinal air channel 2b to further improve the aerosol extraction rate; on the other hand, the airflow will heat the longitudinal air channel 2b when flowing through it, so that its volume expands and the oxygen content decreases, so that the aerosol extraction rate can be improved; on the other hand, by connecting with the transverse air channel 2a, the extraction flow path can be extended, and the uniformity of aerosol extraction is better.

[0045] Exemplarily, the number of the longitudinal air passages 2b is not limited, and may be one or more.

[0046] At least one end of the longitudinal air channel 2b passes through the longitudinal end surface of the aerosol generating substrate segment 2, which means that the longitudinal air channel 2b can pass through the opposite ends of the aerosol generating substrate segment 2 along the longitudinal direction, and the airflow can flow from one end of the aerosol generating substrate segment 2 along the longitudinal direction through the longitudinal air channel 2b to the other end of the aerosol generating substrate segment 2 along the longitudinal direction.

[0047] Of course, one end of the longitudinal air channel 2b may pass through the end surface of the aerosol generating substrate segment 2 in the longitudinal direction, and the other end of the longitudinal air channel 2b may be a blind end. Among them, each longitudinal air channel 2b may pass through the same end of the aerosol generating substrate segment 2 in the longitudinal direction. In other embodiments, part of the longitudinal air channel 2b may pass through one end of the aerosol generating substrate segment 2 in the longitudinal direction, and another part of the longitudinal air channel 2b may pass through the other end of the aerosol generating substrate segment 2 in the longitudinal direction.

[0048] It can be understood that, compared with the longitudinal air passage 2b passing through one end of the aerosol generating substrate segment 2 along the longitudinal direction, the longitudinal air passage 2b passing through both ends of the aerosol generating substrate segment 2 along the longitudinal direction is more conducive to reducing the user's inhalation resistance.

[0049] The longitudinal airway 2b can increase the specific surface area of ​​the aerosol generating matrix segment 2, facilitate heat transfer, and improve heating efficiency. The aerosol in the longitudinal airway 2b is transported to the suction end under the action of the suction negative pressure, and the longitudinal airway 2b can reduce the suction resistance of the user's suction and improve the user experience. It should be noted that the suction resistance is positively correlated with the flow resistance of the aerosol. The smaller the flow resistance of the aerosol in the aerosol generating matrix segment 2, the smaller the suction resistance experienced by the user. The greater the flow resistance of the aerosol in the aerosol generating matrix segment 2, the greater the suction resistance experienced by the user.

[0050] In one embodiment, the central channel 11a and the side channel 11b are connected to at least one longitudinal air channel 2b at one end close to the aerosol generating substrate segment 2. In this way, the airflow can enter the longitudinal air channel 2b through the side channel 11b and diffuse in the longitudinal air channel 2b to further improve the aerosol extraction rate; after the airflow extracts the aerosol, the user can inhale through the central channel 11a. In one embodiment, please refer to Figures 1 to 3 , the central channel 11a of the cooling section 11 is located in the central area of ​​the cooling section 11. In some embodiments, the central axis of the cooling section 11 along the longitudinal direction passes through the central channel 11a thereon. Preferably, the central axis of the central channel 11a of the cooling section 11 coincides with the central axis of the cooling section 11 along the longitudinal direction. Since the flow velocity of the fluid is faster as it approaches the central area, the central channel 11a of the cooling section 11 is located in the central area of ​​the cooling section 11, so that the aerosol can maintain a faster flow velocity and the suction resistance is moderate.

[0051] The central axis refers to the symmetry line of an axisymmetric figure or a rotational figure. In other words, the cooling section 11 and the central channel 11a can both be axisymmetric figures or rotational figures.

[0052] In one embodiment, please refer to Figures 1 to 3 The aerosol generating article 100 includes a wrapping layer 3, and the outer peripheral surface of the aerosol generating matrix segment 2 and the outer peripheral surface of the functional segment 1 are both wrapped with the wrapping layer 3. In this way, the wrapping layer 3 can play a certain protective role on the aerosol generating matrix segment 2, reduce the surface area of ​​the aerosol generating matrix segment 2 directly exposed to the outside, thereby reducing the probability of the aerosol generating matrix segment 2 being damp and deteriorating due to contact with the air, and at the same time, reducing the probability of the aerosol generating matrix segment 2 being contaminated by contact with other components in the aerosol generating device.

[0053] Exemplarily, the wrapping layer 3 may be one layer or more layers. Figure 1 The middle wrapping layer 3 is a single layer, and can be designed as two or more wrapping layers 3 according to the design requirements and manufacturing process of the aerosol generating product. For example, during manufacturing, the cooling section 11 and the filtering section 12 can be first wrapped by a layer of wrapping layer 3, and then wrapped with a layer of wrapping layer 3 and the aerosol generating matrix section 2. Other combinations are also possible.

[0054] See also Figures 1 to 3 The wrapping layer 3 is formed with air holes 3a at the portion corresponding to the cooling section 11, and the air holes 3a are connected to the side channel 11b. The air holes 3a are used to introduce external airflow into the side channel 11b. External airflow, such as air, can enter the side channel 11b from the air holes 3a, and then enter the longitudinal air channel 2b and the transverse air channel 2a to diffuse, so as to extract the aerosol.

[0055] In one embodiment, the number of the air holes 3a is 1 to 10. Exemplarily, the number of the air holes 3a can be 1, 2, 3, 6, 8 or 10, etc. Thus, by setting a suitable number of air holes 3a, not only the air intake of the external airflow can be increased, but also the external airflow can be transported to each corresponding side channel 11b to extract the aerosol at each location of the aerosol generating matrix segment 2, thereby improving the extraction rate and uniformity of the aerosol.

[0056] In one embodiment, the hydraulic diameter of the pore 3a is 0.1 mm to 2.0 mm. For example, the hydraulic diameter of the pore 3a can be 0.1 mm, 0.4 mm, 0.7 mm, 1.0 mm, 1.2 mm, 1.5 mm, 1.8 mm or 2.0 mm, etc. In this way, by setting the hydraulic diameter of the pore 3a of a suitable size, the intake amount and intake flow rate of the external airflow can be controlled, so as to facilitate the extraction of aerosol.

[0057] In one embodiment, the number of pores 3a is 1 to 10, and the hydraulic diameter of the pores 3a is 0.1 mm to 2.0 mm. In this way, the aerosol can be further extracted.

[0058] It should be noted that the hydraulic diameter refers to the ratio of four times the cross-sectional area of ​​the flow passage to the perimeter. The flow passage refers to the cross-section taken by the streamline cluster perpendicular to the fluid. For example, if the cross-sectional shape of the central channel 11a is a regular quadrilateral, the hydraulic diameter is the ratio of four times the cross-sectional area of ​​the regular quadrilateral central channel 11a to the perimeter of the regular quadrilateral. For another example, if the cross-sectional shape of the central channel 11a is a circle, the hydraulic diameter is the diameter of the circular central channel 11a.

[0059] In one embodiment, please refer to Figures 1 to 4 A ventilation hole 11c is formed on the outer circumference of the cooling section 11 at a position aligned with the air hole 3a, and the ventilation hole 11c connects the air hole 3a and the side channel 11b. External airflow from the air hole 3a can enter the side channel 11b through the ventilation hole 11c.

[0060] It should be understood that the ventilation hole 11c is formed at a position of the outer circumference of the cooling section 11 aligned with the air hole 3a, which means that the projection of the air hole 3a on the outer circumference of the cooling section 11 and the ventilation hole 11c at least partially overlap.

[0061] In one embodiment, please refer to Figures 1 to 6, there are multiple side channels 11b, and the multiple side channels 11b are spaced apart along the circumference of the central channel 11a. Here, by spaced apart the multiple side channels 11b along the circumference of the central channel 11a, on the one hand, multiple groups of external airflows can be delivered for extracting aerosols, thereby increasing the amount of aerosols extracted; on the other hand, the heat exchange area of ​​the airflow containing aerosols in the central channel 11a can be increased to further reduce its temperature, thereby reducing the inlet temperature of the aerosols.

[0062] In one embodiment, the number of the side channels 11b is 1 to 30. Exemplarily, the number of the side channels 11b can be 1, 4, 7, 10, 13, 16, 19, 22, 25, 27 or 30, etc. Thus, by setting a suitable number of side channels 11b, on the one hand, the external airflow can be transported to various places of the aerosol generating matrix section 2 to improve the uniformity of aerosol extraction; on the other hand, the airflow containing aerosol in the central channel 11a can be cooled to a large extent, the inlet temperature of the aerosol can be reduced, and the user's inhalation experience is good.

[0063] In one embodiment, the cross-sectional area of ​​the side channel 11b is 0.01 mm 2 Up to 0.5mm 2 For example, the cross-sectional area of ​​the side channel 11b may be 0.01 mm 2 , 0.05mm 2 , 0.1mm 2 , 0.15mm 2 , 0.2mm 2 , 0.25mm 2 , 0.3mm 2 , 0.35mm 2 , 0.4mm 2 , 0.45mm 2 or 0.5mm 2 Here, by setting a suitable cross-sectional area, the flow velocity of the external airflow can be increased to cool the airflow containing aerosol in the central channel 11a.

[0064] In one embodiment, please refer to Figure 2 and Figure 3, the central channel 11a and the side channel 11b both pass through the two end faces of the cooling section 11 in the longitudinal direction. The aerosol generating product 100 includes a first blocking member 4, which is arranged on the end face of the cooling section 11 in the longitudinal direction away from the aerosol generating matrix section 2, and the first blocking member 4 is formed with a flow port 4a connected to the central channel 11a. In this way, the airflow containing aerosol can enter the flow port 4a through the central channel 11a to reach the suction end. The first blocking member 4 blocks the port of the side channel 11b in the longitudinal direction away from the aerosol generating matrix section 2. In this way, under the negative pressure of suction, it is possible to prevent the external airflow from directly entering the suction end from the port of the side channel 11b in the longitudinal direction away from the aerosol generating matrix section 2 to reduce the airflow amount of the external airflow entering the aerosol generating matrix section 2, so that the flow velocity of the external airflow in the aerosol generating matrix section 2 can be increased, thereby improving the extraction of aerosol by the external airflow, and improving the utilization rate and overall uniformity of the aerosol by the user during use.

[0065] For example, in one embodiment, the material of the first blocking member 4 can be silicone, natural rubber, PLA (polylactide), aluminum foil, nickel foil or other metal materials. In some embodiments, the first blocking member 4 can be a high-density acetate rod.

[0066] Exemplarily, in one embodiment, the wrapping layer 3 wraps around the outer periphery of the first blocking member 4 .

[0067] On the other hand, an embodiment of the present application provides an aerosol generating device, which is used with the aerosol generating article 100 provided in the embodiment of the present application. The aerosol generating device includes a heating component, and the heating component is used to heat the aerosol generating substrate segment 2 to generate an aerosol.

[0068] The heating methods of the heating component include, but are not limited to, resistance heating, electromagnetic heating, infrared heating, microwave heating or laser heating. The heat transfer in the form of thermal convection means that the heating component is not in contact with the aerosol generating matrix segment 2, the heating component first heats the air, and then the hot air bakes and heats the aerosol generating matrix segment 2. Heat conduction means that the heating component is in contact with the aerosol generating matrix segment 2 and conducts heat to the aerosol generating matrix segment 2. Exemplarily, resistance and electromagnetic heating mainly transfer heat to the aerosol generating matrix segment 2 in the form of thermal conduction or thermal convection. Infrared heating, microwave heating or laser heating mainly transfer heat to the aerosol generating matrix segment 2 in the form of thermal radiation. That is, the heating component can heat the aerosol generating matrix segment 2 in one or more of the three forms of thermal conduction, thermal convection and thermal radiation.

[0069] In one embodiment, please refer to Figure 3The aerosol generating product 100 includes a second blocking member 5, which blocks the end face of the aerosol generating matrix segment 2 that is away from the cooling segment 11 in the longitudinal direction. On the one hand, it can reduce or block the external airflow from contacting the aerosol generating matrix segment 2 through the end face of the aerosol generating matrix segment 2 that is away from the cooling segment 11 in the longitudinal direction, reduce the heat dilution brought by the external airflow, and make the temperature field of the heated aerosol generating matrix segment 2 more stable and have good thermal efficiency; on the other hand, here, one end of the aerosol generating matrix segment 2 in the longitudinal direction is blocked, so that the aerosol generating matrix segment 2 is heated to generate aerosol in a low oxygen or oxygen-free environment. At this time, the generated aerosol will diffuse toward the aerobic area, that is, diffuse toward the external airflow, and finally be extracted by the external airflow. Since the aerosol generating matrix segment 2 has less participation of oxygen in the heating process, the generation of harmful substances can be reduced.

[0070] Exemplarily, in one embodiment, the second blocking member 5 can be made of silicone, natural rubber, PLA (polylactide), aluminum foil, nickel foil or other metal materials. In some embodiments, the second blocking member 5 can be a high-density acetate rod. In other embodiments, a heating component can be used to block the end face of the aerosol generating matrix section 2 away from the cooling section 11 in the longitudinal direction.

[0071] In some embodiments, the number of pores 3a is 1 to 10, the hydraulic diameter of the pores 3a is 0.1 mm to 2.0 mm, the first blocking member 4 blocks the port of the side channel 11b away from the aerosol generating matrix segment 2 in the longitudinal direction, and the second blocking member 5 blocks the end face of the aerosol generating matrix segment 2 away from the cooling segment 11 in the longitudinal direction. In this way, compared with the related art, the intake speed of the external airflow in the embodiment of the present application can be increased by 150% to 300%, and the inlet temperature of the aerosol can be reduced by 5°C to 15°C. Therefore, in the intake process of this setting, the extraction of aerosol can be greatly improved, and the inlet temperature of the aerosol is moderate, and the user's inhalation experience is good.

[0072] In one embodiment, please refer to Figure 4 , the side channel 11b is formed inside the cooling section 11. In this way, the outer structure of the cooling section 11 can protect the side channel 11b to ensure stable delivery of external airflow and good working stability.

[0073] In one embodiment, please refer to Figure 4The cooling section 11 includes an outer peripheral layer 111, an inner peripheral layer 112 and convex ribs 113. The outer peripheral layer 111 is located laterally outside the inner peripheral layer 112 and both are in a circular shape. The inner peripheral layer 112 defines a central channel 11a. The convex ribs 113 are arranged between the outer peripheral layer 111 and the inner peripheral layer 112 and together define a side channel 11b. Exemplarily, the convex rib 113 includes a first barrier sheet 1131 and a second barrier sheet 1132, both of which extend longitudinally, one end of the first barrier sheet 1131 and one end of the second barrier sheet 1132 are connected at a certain angle, the other end of the first barrier sheet 1131 and the other end of the second barrier sheet 1132 are arranged to be spaced apart so that the projection of the convex rib 113 along the longitudinal direction is roughly in the shape of "<", the connecting ends of the first barrier sheet 1131 and the second barrier sheet 1132 are connected to the outer wall of the inner peripheral layer 112, and the two ends of the interval between the first barrier sheet 1131 and the second barrier sheet 1132 are connected to the inner wall of the outer peripheral layer 111 to jointly define the side channel 11b.

[0074] In some embodiments, the number of ribs 113 is not limited, and there can be multiple ribs 113, which are arranged circumferentially between the inner wall of the outer layer 111 and the outer wall of the inner layer 112, and the first barrier sheet 1131 and the second barrier sheet 1132 of two adjacent ribs 113 are connected. In this way, the inner layer 112 can divide and seal the aerosol generating matrix segment 2, so that the external airflow first enters the side channel 11b through the pores 3a, then enters the longitudinal airway 2b, and then realizes airflow reversal in the transverse airway 2a. On the one hand, the extraction flow path of the external airflow can be extended, and the extraction efficiency is good; on the other hand, the intake flow velocity and flow rate of the external airflow can be precisely controlled by the number and cross-sectional size of the side channels 11b and the number and cross-sectional size of the pores 3a.

[0075] See also Figure 2 ,and Figure 4 , the side channel 11b can pass through both ends of the cooling section 11. Figure 1 As shown, the end of the cooling section 11 away from the aerosol generating matrix section 2 is closed by an annular top wall 114 connecting the inner and outer peripheral layers. The cooling section 11 includes an annular top wall 114, which closes the inner peripheral layer 112 and the outer peripheral layer 111 away from the end of the aerosol generating matrix section 2. In other words, the port of the side channel 11b away from the aerosol generating matrix section 2 is closed by the annular top wall 114. In this way, under the negative pressure of suction, it is possible to prevent the external airflow from directly entering the suction end from the port of the side channel 11b away from the aerosol generating matrix section 2 in the longitudinal direction, resulting in a reduction in the airflow of the external airflow entering the aerosol generating matrix section 2. In this way, the flow velocity of the external airflow in the aerosol generating matrix section 2 can be increased, thereby improving the extraction of aerosol by the external airflow, and improving the utilization rate and overall uniformity of the aerosol by the user during use.

[0076] In one embodiment, please refer to Figure 5 and Figure 6 , the side channel 11b is formed on the outer peripheral surface of the cooling section 11. That is to say, the side channel 11b is a groove opening outward. In this way, the difficulty of processing the side channel 11b can be reduced. In some embodiments, the wrapping layer 3 closes the outward opening of the groove. In some embodiments, a plurality of circumferential cylindrical protrusions are formed on the outer peripheral surface of the cooling section 11, and the space between two adjacent cylindrical protrusions is a groove. In this way, each side channel 11b is independent of each other, and each side channel 11b can independently transport the external airflow, with high reliability.

[0077] In some embodiments, the shapes of the flow cross-sections of the air holes 3a, ventilation holes 11c, central channels 11a, side channels 11b, transverse air channels 2a and longitudinal air channels 2b include but are not limited to circular, elliptical or polygonal (such as square, prism or pentagon, etc.).

[0078] In some embodiments, the projection plane is perpendicular to the longitudinal direction, and the projection of the filter section 12, the projection of the cooling section 11 and the projection of the aerosol generating matrix section 2 are all overlapped. Figures 1 to 3 The projection of the filtering section 12, the projection of the cooling section 11 and the projection of the aerosol generating matrix section 2 are all circular and have the same outer diameter. This facilitates the assembly of the above structure into the wrapping layer 3.

[0079] It should be noted that micropores may exist inside the aerosol generating matrix segment 2. For example, for the aerosol generating matrix segment 2 of the particle combination, the gaps between the particles constitute micropores. However, the airway described in the present application is different from the micropores. The airway described in the present application belongs to the pores in the macroscopic sense, and the micropores belong to the pores in the microscopic sense. The projected area and length of the airway are much larger than those of the micropores. The airway is mainly formed by design and processing, such as by processing by a die. Therefore, the projected area and length of the airway can be changed according to the design requirements, while the size of the micropore is determined by the gaps between the particles. For example, the material is a granular material, and the aerosol generating matrix segment 2 formed by extrusion of the material has micropores. The projected area and length of the micropores are naturally formed by the extrusion process and the material components. The material feeding tube expands to a certain extent after flowing out of the die, which can form micropores.

[0080] It should be noted that the aerosol generating matrix segment 2 is a particle assembly, and micropores are formed between the particles of the particle assembly, that is, the gaps between the particles constitute micropores, and the micropores are connected to form micro airways connected to the transverse airways 2a and the longitudinal airways 2b.

[0081] In the embodiment of the present application, the transverse airway 2a, the longitudinal airway 2b and the micropores can increase the surface area of ​​the aerosol generating matrix section 2, facilitate heat transfer, and improve heating efficiency. The dielectric material of the aerosol generating matrix section 2 releases aerosols when heated, and is collected to the transverse airway 2a and / or the longitudinal airway 2b through the gaps between the wall materials or the micro-airways. The aerosols released by the dielectric material exposed to the transverse airway 2a (i.e., the dielectric material located on the inner wall surface of the transverse airway 2a) can be directly released to the transverse airway 2a, and the aerosols released by the dielectric material exposed to the longitudinal airway 2b (i.e., the dielectric material located on the inner wall surface of the longitudinal airway 2b) can be directly released to the longitudinal airway 2b. The external airflow can enter the side channel 11b through the air hole 3a and the ventilation hole 11c and enter the aerosol generating matrix section 2 through the longitudinal airway 2b aligned therewith, and then diffuse to other longitudinal airways 2b through the transverse airway 2a. The airflow in the longitudinal airway 2b is transported to the downstream end where the functional section 2 is located under the action of the suction negative pressure.

[0082] See also Figure 1 , the external airflow can enter the side channel 11b through the air hole 3a and the ventilation hole 11c. The side channel 11b can provide more aerosol flow paths, reduce the suction resistance, and improve the aerosol extraction efficiency; due to the obstruction of the annular top wall 114, the external airflow will enter the longitudinal airway 2b along the longitudinal direction and diffuse, which can not only improve the uniformity of aerosol extraction, but also help to heat the external airflow, expand its volume, reduce the oxygen content, and improve the aerosol extraction rate; the external airflow can also diffuse through the transverse airway 2a to other longitudinal airways 2b connected thereto, which is beneficial to heat transfer, improve heating efficiency, and improve aerosol extraction efficiency, and finally transported to the downstream end where the functional section 2 is located under the action of suction negative pressure.

[0083] See also Figure 2 The external airflow can enter the side channel 11b through the air holes 3a and the ventilation holes 11c. Due to the obstruction of the first blocking member 4, the external airflow from the side channel 11b will enter the longitudinal airway 2b along the longitudinal direction for diffusion. The external airflow can also diffuse to other longitudinal airways 2b connected thereto through the transverse airway 2a, and the aerosol generated by the medium material of the aerosol generating matrix segment 2 can be collected into the longitudinal airway 2b through the micro-airway and the transverse airway 2a, and finally transported to the downstream end where the functional segment 2 is located under the action of the suction negative pressure.

[0084] See also Figure 3, the external airflow can enter the side channel 11b through the air hole 3a and the ventilation hole 11c. Due to the obstruction of the first blocking member 4 and the annular top wall 114, the external airflow from the side channel 11b will enter the longitudinal airway 2b in the longitudinal direction for diffusion. The external airflow can also diffuse to other longitudinal airways 2b connected thereto through the transverse airway 2a, and the aerosol generated by the medium material of the aerosol generating matrix segment 2 can be collected into the longitudinal airway 2b through the micro airway and the transverse airway 2a. Since the second blocking member 5 blocks the end face of the aerosol generating matrix segment 2 away from the cooling segment 11 in the longitudinal direction, it can reduce or even eliminate the external airflow from the end face of the aerosol generating matrix segment 2 away from the cooling segment 11 in the longitudinal direction to enter the aerosol generating matrix segment 2.

[0085] In one embodiment, the functional section 1 and the aerosol generating matrix section 2 are both cylindrical, wherein the longitudinal direction is the axial direction of the functional section 1 and the aerosol generating matrix section 2 or a direction parallel to the axial direction, and the longitudinal direction is perpendicular to the transverse direction. In other words, the filtering section 12, the cooling section 11 and the aerosol generating matrix section 2 are all cylindrical.

[0086] Exemplarily, in one embodiment, the filtration section 12, the cooling section 11 and the aerosol generating matrix section 2 are coaxial. That is, the filtration section 12, the cooling section 11 and the aerosol generating matrix section 2 are all cylindrical, and the central axes of the filtration section 12, the cooling section 11 and the aerosol generating matrix section 2 coincide.

[0087] In one embodiment, the aerosol generating substrate segment 2 is an integral structure.

[0088] For example, the aerosol generating matrix segment 2 can be made into an integral structure by injection molding, die casting or extrusion, etc. In this way, the aerosol generating matrix segment 2 is an integral medium during use, such as when heated or after heating, and is not prone to disintegration and falling.

[0089] Extrusion molding refers to a processing method in which the material passes through the interaction between the barrel and the extrusion screw of the extrusion device, the material is plasticized by heat and pushed toward the discharge port by the extrusion screw, and is formed into an aerosol-generating matrix segment 2 with a preset projection shape and corresponding pores through an extrusion mold such as a mouth mold.

[0090] The cooling materials used in the cooling section 11 include but are not limited to one or more combinations of PE (polyethylene), PLA (Polylactic Acid), PBAT (Polybutylene Adipate Terephthalate), PP (Polypropylene), acetate fiber, acrylic fiber and the like.

[0091] The filter material used in the filter section 12 includes but is not limited to one or more combinations of PE (polyethylene), PLA (Polylactic Acid), PBAT (Polybutylene Adipate Terephthalate), PP (Polypropylene), acetate fiber, acrylic fiber and the like.

[0092] The materials of the cooling section 11 and the filtering section 12 may be the same or different.

[0093] In one embodiment, the aerosol-generating substrate segment 2 includes plant raw materials, auxiliary raw materials, smoke-generating agent raw materials, adhesive raw materials, and flavor raw materials.

[0094] The plant raw material is used to generate aerosol when heated. The auxiliary raw material is used to provide a skeleton support for the plant raw material. The smoke-generating agent raw material is used to generate a large amount of smoke when heated. The adhesive raw material is used to bond the component raw materials. The fragrance raw material is used to provide a characteristic aroma. In this way, the plant raw material and the smoke-generating agent raw material can ensure the amount of aerosol generated, while the fragrance raw material can enhance the release of the aroma during the suction process and enhance the user experience. The auxiliary raw material can not only improve the fluidity of the mixed material, but also make the aerosol generating matrix section 2 porous, so as to facilitate the extraction and flow of the aerosol. The adhesive raw material ensures that the plant raw material powder and the auxiliary agent etc. constitute a stable mixture to avoid a loose structure.

[0095] In one embodiment, the plant raw material is one or more combinations of powders formed by crushing tobacco raw materials, tobacco leaf fragments, tobacco stems, tobacco dust, and aromatic plants. The plant raw material is the core source of flavor. The endogenous substances in the plant raw material can produce physiological satisfaction for the user. The endogenous substances, such as alkaloids, enter the human blood and promote the pituitary gland to produce dopamine, thereby obtaining physiological satisfaction.

[0096] In one embodiment, the auxiliary agent raw material can be one or more combinations of inorganic fillers, lubricants, and emulsifiers. Among them, the inorganic filler includes one or more combinations of heavy calcium carbonate, light calcium carbonate, zeolite, attapulgite, talc, and diatomaceous earth. The inorganic filler can provide a skeleton support for the plant raw material, and the inorganic filler also has micropores, which can increase the porosity of the aerosol generation matrix section 2, thereby increasing the aerosol release rate.

[0097] The lubricant includes one or more combinations of candelilla wax, carnauba wax, shellac, sunflower wax, rice bran, beeswax, stearic acid, and palmitic acid. The lubricant can increase the fluidity of the plant raw material powder, reduce the friction between the plant raw material powders, make the overall density of the plant raw material powder distribution more uniform, and also reduce the pressure required in the extrusion molding process and reduce the wear of the die.

[0098] The emulsifier includes one or more combinations of polyglycerol fatty acid ester, Tween-80, and polyvinyl alcohol. The emulsifier can slow down the loss of flavor substances during storage to a certain extent, increase the stability of flavor substances, and improve the sensory quality of the product.

[0099] In one embodiment, the smoke-generating agent raw material may include: a monohydric alcohol (such as menthol); a polyhydric alcohol (such as propylene glycol, glycerol, triethylene glycol, 1,3-butylene glycol and tetraethylene glycol); an ester of a polyhydric alcohol (such as triacetin, triethyl citrate, a mixture of diacetin esters, triethyl citrate, benzyl benzoate, glyceryl tributyrate); a monocarboxylic acid; a dicarboxylic acid; a polycarboxylic acid (such as lauric acid, myristic acid) or an aliphatic ester of a polycarboxylic acid (such as dimethyl dodecanedioate, dimethyl tetradecanedioate, erythritol, 1,3-butylene glycol, tetraethylene glycol, triethyl citrate, propylene carbonate, ethyl laurate, Triactin, meso-erythritol, a mixture of diacetin esters, diethyl suberate, triethyl citrate, benzyl benzoate, benzyl phenylacetate, ethyl vanillate, glyceryl tributyrate, lauryl acetate) or one or more combinations thereof.

[0100] In one embodiment, the adhesive raw material is in close contact with the component raw material interface by wetting, generating intermolecular attraction, thereby playing the role of bonding the component raw materials such as powders, liquids, etc. The adhesive raw material can be a natural plant extract, a non-ionized modified viscous polysaccharide, including one or more combinations of tamarind polysaccharide, guar gum, and modified cellulose (such as carboxymethyl cellulose). The adhesive is used to bond the particles together, which is not easy to loosen. In addition, it improves the water resistance of the aerosol generating matrix segment 2 and is harmless to the human body.

[0101] In one embodiment, the flavor raw material is used to provide a characteristic aroma, such as a solid or liquid substance of hay aroma, roasted sweet aroma, and nicotine. The flavor raw material may include one or more combinations of tobacco, flavor plant extracts, extracts, essential oils, and absolute oils; the flavor raw material may include one or more combinations of monomer flavor substances, such as megastigmatriene, neophytadiene, geraniol, nerol, and the like.

[0102] In the description of the present application, the description with reference to the terms "in one embodiment", "in some embodiments", "in other embodiments", "in yet other embodiments", or "exemplary" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In the present application, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0103] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application are included in the protection scope of the present application.

Claims

1. An aerosol generating product, characterized in that include: A functional section, wherein the functional section includes a cooling section, wherein the cooling section is formed with a central channel and side channels, and the side channels are located outside the central channel; An aerosol generating matrix segment, wherein the functional segment is arranged at one end of the aerosol generating matrix segment along the longitudinal direction, the aerosol generating matrix segment forms a transverse airway extending along the transverse direction, and the central channel and the side channel are both connected to the aerosol generating matrix segment at one end close to the aerosol generating matrix segment.

2. The aerosol-generating article according to claim 1, wherein The aerosol generating substrate segment is formed with a longitudinal air channel extending in the longitudinal direction, at least one end of the longitudinal air channel passes through the end surface of the aerosol generating substrate segment in the longitudinal direction, and each of the transverse air channels is connected to at least one of the longitudinal air channels.

3. The aerosol-generating article according to claim 2, wherein: The central channel and the side channel are respectively connected to at least one of the longitudinal air channels at one end close to the aerosol generating substrate segment.

4. The aerosol-generating article of claim 1, wherein: There are multiple side channels, and the multiple side channels are distributed at intervals along the circumference of the central channel.

5. The aerosol-generating article of claim 1, wherein: The side channel is formed inside the temperature reduction section.

6. An aerosol generating article according to claim 5, characterized in that The cooling section includes an outer peripheral layer, an inner peripheral layer and convex ridges, the outer peripheral layer is located laterally outside the inner peripheral layer and both are in a circular shape, the inner peripheral layer defines the central channel, and the convex ridges are arranged between the outer peripheral layer and the inner peripheral layer and jointly define the side channel.

7. An aerosol generating article according to claim 6, characterized in that The temperature-lowering section comprises an annular top wall, and the annular top wall seals one end of the inner peripheral layer and the outer peripheral layer away from the aerosol-generating substrate section.

8. The aerosol-generating article of claim 1, wherein: The cross-sectional area of ​​the side channel is 0.01 mm 2 Up to 0.5mm 2 .

9. The aerosol-generating article of claim 1, wherein: The central channel and the side channels both pass through the two end faces of the cooling section along the longitudinal direction; the aerosol generating product includes a first blocking piece, which is arranged on the end face of the cooling section away from the aerosol generating matrix section along the longitudinal direction, and the first blocking piece is formed with a flow port connected to the central channel, and the first blocking piece blocks the port of the side channel away from the aerosol generating matrix section along the longitudinal direction.

10. The aerosol-generating article of claim 1, wherein: The aerosol generating product comprises a wrapping layer, the outer peripheral surface of the aerosol generating substrate segment and the outer peripheral surface of the functional segment are both wrapped with the wrapping layer, the wrapping layer is formed with pores at the position corresponding to the cooling segment, and the pores are connected with the side channel.

11. An aerosol-generating article according to claim 10, characterized in that The number of the pores is 1 to 10; and / or, The hydraulic diameter of the pores is 0.1 mm to 2.0 mm.

12. The aerosol-generating article of claim 10, wherein: The aerosol generating article comprises a second blocking member, which blocks an end surface of the aerosol generating substrate segment away from the cooling segment in the longitudinal direction.

13. The aerosol-generating article of claim 1, wherein: The side channel is formed on the outer peripheral surface of the temperature reduction section.

14. The aerosol-generating article of claim 1, wherein: The number of the transverse air channels is multiple, and the multiple transverse air channels are distributed at intervals along the circumference of the aerosol generating substrate segment.

15. The aerosol-generating article of claim 1, wherein: The functional section comprises a filtering section, and the filtering section is arranged at one end of the cooling section away from the aerosol generating substrate section in the longitudinal direction.

16. The aerosol-generating article of claim 1, wherein: The functional segment and the aerosol generating matrix segment are both cylindrical, wherein the longitudinal direction is the axial direction of the functional segment and the aerosol generating matrix segment or a direction parallel to the axial direction, and the longitudinal direction and the transverse direction are perpendicular to each other.

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