Aerosol generating product

Abstract

The invention relates to the technical field of aerosol generation, and provides an aerosol generation product which comprises an aerosol generation matrix section, a functional section and a wrapping layer, the functional section comprises a cooling section, a supporting section and a filtering section, and the aerosol generation matrix section, the supporting section, the cooling section and the filtering section are sequentially arranged in the longitudinal direction; the periphery of the aerosol generating matrix section and the periphery of the functional section are wrapped by the wrapping layer, and side holes are formed in the portion, located between the aerosol generating matrix section and the filtering section, of the wrapping layer. The side hole is located between the aerosol generation matrix section and the filtering section, external airflow is introduced into the aerosol generation product through the side hole, so that aerosol cached between the aerosol generation matrix section and the filtering section can quickly flow to the filtering section, the aerosol extraction efficiency and the aerosol release stability are improved, and the suction experience is improved; and the temperature of the aerosol can be reduced through mixed contact of external airflow and the 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, and the user experiences a "burning mouth" phenomenon when inhaling the aerosol. 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] an aerosol generating substrate segment, formed with an air passage, the air passage passing through at least one end surface of the aerosol generating substrate segment in the longitudinal direction;

[0008] The functional section includes a cooling section, a supporting section and a filtering section, wherein the aerosol generating matrix section, the supporting section, the cooling section and the filtering section are sequentially arranged in the longitudinal direction;

[0009] A wrapping layer is wrapped around the periphery of the aerosol generating substrate segment and the periphery of the functional segment, and a side hole is formed at a portion of the wrapping layer between the aerosol generating substrate segment and the filtering segment.

[0010] In some embodiments, at least one of the outer circumferential surface of the cooling section and the outer circumferential surface of the supporting section is formed with a ventilation hole, and the ventilation hole is aligned with and connected to the side hole.

[0011] In some embodiments, at least one of the cooling section and the supporting section is formed with a hollow channel passing through two end surfaces along the longitudinal direction.

[0012] In some embodiments, the hydraulic diameter of the hollow channel of the supporting section is not greater than the hydraulic diameter of the hollow channel of the cooling section.

[0013] In some embodiments, ventilation holes are formed on the outer circumferential surface of the cooling section and the outer circumferential surface of the supporting section at positions aligned with the side hole, and the ventilation holes connect the side hole and the hollow channel.

[0014] In some embodiments, at least one of the cooling section and the supporting section is formed with side channels passing through two end surfaces along the longitudinal direction, and the side channels are located on the lateral outside of the hollow channel.

[0015] In some embodiments, a flavoring substance is disposed in the side channel.

[0016] In some embodiments, there are multiple side channels, and the multiple side channels are distributed around the periphery of the hollow channel at intervals.

[0017] In some embodiments, the aerosol generating matrix segment, the cooling segment, the support segment and the filter segment are all cylindrical structures with the same outer diameter, the central axes of the aerosol generating matrix segment, the cooling segment, the support segment and the filter segment coincide with each other and are all along the longitudinal direction, the cooling segment is formed with a hollow channel passing through the two end faces along the longitudinal direction, and the projection surface is a plane perpendicular to the longitudinal direction, and the projection of the hollow channel of the cooling segment is circular.

[0018] In some embodiments, the support section is formed with a hollow channel passing through two end surfaces along the longitudinal direction, and the hydraulic diameter of the hollow channel of the support section is equal to the hydraulic diameter of the hollow channel of the cooling section.

[0019] In some embodiments, the filter segment is formed with a resistance-reducing channel passing through at least one end in the longitudinal direction.

[0020] In some embodiments, the empty space formed by the wrapping layer is a cavity, and the wall surface of the cavity formed by the wrapping layer is formed with the side hole;

[0021] The cavity is provided between the filtering section and the cooling section; and / or the cavity is provided between the cooling section and the supporting section.

[0022] In some embodiments, the hydraulic diameter of the side hole is 0.1 mm to 0.7 mm.

[0023] In some embodiments, there are multiple side holes, and the multiple side holes are arranged at intervals along the circumferential direction to form an air intake group.

[0024] In some embodiments, the number of the air intake groups is 1 to 7; and / or,

[0025] The number of the side holes in each of the air intake groups is 2 to 16.

[0026] In some embodiments, there are multiple air intake groups, and the multiple air intake groups are arranged at intervals in the longitudinal direction, and the distance between two adjacent air intake groups is not less than 0.5 mm.

[0027] The aerosol generating product provided in the embodiment of the present application, on the one hand, the aerosol generated by the aerosol generating matrix section flows through the supporting section, the cooling section and the filtering section in sequence, and the multi-section structure can extend the flow path of the aerosol, gradually reduce the temperature of the aerosol, and solve the problem of "burning the mouth" during the suction process. On the other hand, the side hole is located between the aerosol generating matrix section and the filtering section, and the side hole introduces the external airflow into the interior of the aerosol generating product, so that the aerosol buffered between the aerosol generating matrix section and the filtering section can quickly flow to the filtering section, thereby improving the aerosol extraction efficiency and the aerosol release stability, and improving the suction experience; it can also reduce the temperature of the aerosol by mixing and contacting the external airflow and the aerosol. The external airflow from the side hole basically does not enter the aerosol generating matrix section, so it has little effect on the aerosol generating matrix section, and can avoid the aerosol generating matrix section and the external airflow to generate other substances at the heating temperature to a certain extent, and ensure the purity of the aerosol. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic structural diagram of a first aerosol generating product in one embodiment of the present application;

[0029] Figure 2 for Figure 1 A cross-sectional view of the first aerosol-generating article shown;

[0030] Figure 3 Schematic diagram of the structure of a second aerosol generating product in one embodiment of the present application;

[0031] Figure 4 Schematic diagram of the structure of a third aerosol generating product in one embodiment of the present application;

[0032] Figure 5 Schematic diagram of the structure of a fourth aerosol generating product in one embodiment of the present application;

[0033] Figure 6 Schematic diagram of the structure of a fifth aerosol generating product in one embodiment of the present application;

[0034] Figure 7 Schematic diagram of the structure of a sixth aerosol generating product in one embodiment of the present application;

[0035] Figure 8 Schematic diagram of the structure of a seventh aerosol generating product in one embodiment of the present application;

[0036] Fig. 9Schematic diagram of the structure of an eighth aerosol generating product in an embodiment of the present application;

[0037] Fig.10 Schematic diagram of the structure of a ninth aerosol generating product in an embodiment of the present application;

[0038] Fig.11 Schematic diagram of the structure of a tenth aerosol generating product in an embodiment of the present application;

[0039] Fig.12 A schematic diagram of a corrugated structure in an embodiment of the present application;

[0040] Fig.13 for Fig.12 Schematic diagram of another perspective of the corrugated structure shown.

[0041] Description of Reference Numerals

[0042] Aerosol generating matrix segment 1; airway 1a;

[0043] Functional section 2; ventilation hole 2a; hollow channel 2b; side channel 2c; cooling section 21; support section 22; filtering section 23; resistance reduction channel 23a;

[0044] Wrapping layer 3; side hole 3a; air intake group 3ab; cavity 3b;

[0045] Hollow acetate fiber 10; solid acetate fiber 20; paper tube structure 30; corrugated structure 40; aluminum foil tube structure 50; DETAILED DESCRIPTION

[0046] 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.

[0047] In the present application, a plurality includes two and more than two. The unit "mm" is millimeter. The unit "℃" is Celsius.

[0048] See also Figure 1 and Figure 2 An embodiment of the present application provides an aerosol generating product, which includes an aerosol generating matrix segment 1, a functional segment 2 and a wrapping layer 3.

[0049] The functional section 2 comprises a cooling section 21, a supporting section 22 and a filtering section 23. The aerosol generating matrix section 1, the supporting section 22, the cooling section 21 and the filtering section 23 are arranged in sequence along the longitudinal direction.

[0050] The wrapping layer 3 is wrapped around the periphery of the aerosol generating matrix segment 1 and the periphery of the functional segment 2. Exemplarily, the wrapping layer 3 is wrapped around the periphery of the aerosol generating matrix segment 1 and the periphery of the functional segment 2. That is to say, the peripheries of the aerosol generating matrix segment 1, the support segment 22, the cooling segment 21 and the filtering segment 23 are all wrapped by the wrapping layer 3. The wrapping layer 3 in the figure 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 support segment 22, the cooling segment 21 and the filtering segment 23 can be first wrapped by a layer of wrapping layer 3, and then wrapped with the aerosol generating matrix segment 1 by another layer of wrapping layer 3, or other combinations can be used.

[0051] Please continue reading Figure 1 and Figure 2 The wrapping layer 3 is formed with a side hole 3a at a position between the aerosol generating substrate segment 1 and the filter segment 23. That is, the side hole 3a is located between the aerosol generating substrate segment 1 and the filter segment 23. The side hole 3a is used to introduce external gas such as air into the interior of the aerosol generating article.

[0052] In an embodiment of the present application, the aerosol generating matrix segment 1 is used to generate aerosol by heating. Exemplarily, the aerosol generating matrix segment 1 can be used to generate aerosol by heating without burning. That is, the aerosol generating matrix segment 1 is heated below the ignition point to generate aerosol. The aerosol generating matrix segment 1 does not burn during the process of generating aerosol. In some application scenarios, the aerosol generating matrix segment 1 can be used to generate aerosol by ignition. The aerosol generating matrix segment 1 of the present application is more used to generate aerosol by heating without burning.

[0053] The support segment 22 can withstand the temperature of the aerosol from the aerosol-generating substrate segment 1 and maintain its shape. The support segment 22 plays a supporting role.

[0054] The cooling section 21 is used to reduce the temperature of the aerosol, so that the aerosol is suitable for the user to inhale.

[0055] The filter section 23 is used to filter the aerosol. Exemplarily, the filter section 23 can block substances of target particle size and can also adjust the inhalation resistance. For example, the filter section 23 can filter large-size particles similar to powdery substances. The aerosol filtered by the filter section 23 has a higher consistency in particle size and a more delicate taste.

[0056] The aerosol generating article is used for users to inhale the aerosol generated by the aerosol generating matrix segment 1. For example, the user can inhale the filtered aerosol through the filter segment 23. The aerosol generated by the aerosol generating matrix segment 1 flows through the support segment 22 and the cooling segment 21 in sequence under the action of the suction negative pressure, and then is transported to the filter segment 23. That is, the functional segment 2 is located at the downstream end of the aerosol generating matrix segment 1 in the longitudinal direction.

[0057] Exemplarily, the heating temperature of the aerosol generating matrix segment 1 is about 300°C. When inhaling, the temperature of the downstream end surface of the aerosol generating matrix segment 1 is generally about 200°C, or even higher. When not inhaling, the temperature of the downstream end surface of the aerosol generating matrix segment 1 drops sharply, for example, the temperature is about 100°C. When inhaling, the excessively high temperature can easily cause the filter segment 23 to shrink and deform due to heat, affecting the appearance and inhalation experience, causing the aerosol to "burn the mouth" and making it impossible to inhale.

[0058] See also Figure 2 , the aerosol generating matrix segment 1 is formed with an air channel 1a, and the air channel 1a passes through at least one end surface of the aerosol generating matrix segment 1 in the longitudinal direction. For example, the air channel 1a passes through one end of the aerosol generating matrix segment 1 in the longitudinal direction. For another example, the air channel 1a passes through both ends of the aerosol generating matrix segment 1 in the longitudinal direction. The airflow can flow from one end of the aerosol generating matrix segment 1 along the air channel 1a to the other end of the aerosol generating matrix segment 1. The aerosol can flow more smoothly through the air channel 1a, the aerosol can be delivered in an orderly manner, the aerosol flow resistance is smaller, the controllability is good, the aerosol extraction efficiency is effectively improved, and the inhalation experience is improved.

[0059] The aerosol generating product provided in the embodiment of the present application, on the one hand, the aerosol generated by the aerosol generating matrix section 1 flows through the supporting section 22, the cooling section 21 and the filtering section 23 in sequence, and the multi-section structure can extend the flow path of the aerosol, gradually reduce the temperature of the aerosol, and solve the problem of "burning the mouth" during the suction process. On the other hand, the side hole 3a is located between the aerosol generating matrix section 1 and the filtering section 23. The side hole 3a introduces the external airflow into the interior of the aerosol generating product, so that the aerosol buffered between the aerosol generating matrix section 1 and the filtering section 23 can quickly flow to the filtering section 23, thereby improving the aerosol extraction efficiency and the aerosol release stability, and improving the suction experience; it can also reduce the temperature of the aerosol by mixing and contacting the external airflow and the aerosol. Due to the negative pressure of suction and the high temperature of the matrix, the external airflow from the side hole 3a basically does not enter the aerosol generating matrix segment 1. Therefore, it has little impact on the aerosol generating matrix segment 1, and can to a certain extent avoid the aerosol generating matrix segment 1 and the external airflow from producing other substances under the heating temperature, thereby ensuring the purity of the aerosol.

[0060] The aerosol-generating article is intended for use with an aerosol-generating device having a heating element.

[0061] The aerosol generating device provided in the embodiment of the present application is used for the aerosol generating product in any one of the embodiments of the present application. The aerosol generating device heating element is used to heat the aerosol generating substrate segment 1 to generate aerosol.

[0062] The heating methods of the heating element include, but are not limited to, resistance heating, electromagnetic heating, infrared heating, microwave heating or laser heating, etc. The heat transfer in the form of thermal convection means that the heating element is not in contact with the aerosol generating matrix segment 1, the heating element first heats the air, and then the hot air bakes and heats the aerosol generating matrix segment 1. Heat conduction means that the heating element is in contact with the aerosol generating matrix segment 1 and conducts heat to the aerosol generating matrix segment 1. Exemplarily, resistance and electromagnetic heating mainly transfer heat to the aerosol generating matrix segment 1 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 1 in the form of thermal radiation. That is, the heating element can heat the aerosol generating matrix segment 1 in one or more of the three forms of thermal conduction, thermal convection and thermal radiation.

[0063] In one embodiment, the aerosol generating substrate segment 1 is an integral structure.

[0064] For example, the aerosol generating matrix segment 1 can be made into an integral structure by injection molding, die casting or extrusion, etc. In this way, the aerosol generating matrix segment 1 is an integral medium during use, such as when heated or after heating, and is not prone to disintegration and falling.

[0065] 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 1 with a preset projection shape and corresponding pores through an extrusion mold such as a mouth mold.

[0066] It should be noted that the longitudinal direction refers to the extension direction of the aerosol generating matrix segment 1. For example, the aerosol generating matrix segment 1 is formed by extrusion, and the longitudinal direction is the extrusion direction of the aerosol generating matrix segment 1. The projected shape refers to the shape of the aerosol generating matrix segment 1 with the plane perpendicular to the longitudinal direction as the projection surface.

[0067] In one embodiment, please refer to Figures 2 to 11 The air channel 1a is a straight air channel 1a extending in a straight line along the longitudinal direction. The straight air channel 1a is easy to form and can reduce the difficulty of manufacturing. The flow resistance of the airflow in the straight air channel 1a is relatively small.

[0068] In one embodiment, please refer to Figure 2 , the number of airways 1a can be multiple.

[0069] In some embodiments, the end face of the aerosol generating matrix segment 1 away from the functional segment 2 in the longitudinal direction can be self-sealed or closed in cooperation with the aerosol generating device. Exemplarily, the heating element can seal the end face of the aerosol generating matrix segment 1 away from the functional segment 2 in the longitudinal direction. One end of the aerosol generating matrix segment 1 away from the functional segment 2 can also be sealed by a blocking element. The outer peripheral surface of the aerosol generating matrix segment 1 is wrapped with a wrapping layer 3, so that it is difficult for the outside air to enter the aerosol generating matrix segment 1 through the end face of the aerosol generating matrix segment 1 away from the functional segment 2 in the longitudinal direction, so that the aerosol generating matrix segment 1 is heated in a low oxygen or even oxygen-free environment. The aerosol generating product is always in an oxygen-free or low oxygen state during the suction process. By blocking or reducing the entry of air into the aerosol generating matrix segment 1, the heat dilution brought by the air can be reduced, the heating efficiency can be improved, and the temperature field of the heating chamber of the heating element can be kept continuously stable. It can also reduce the participation of oxygen to further reduce the generation of undesirable substances and reduce the probability of carbonization of the aerosol generating matrix segment 1.

[0070] In one embodiment, at least one of the outer peripheral surface of the cooling section 21 and the outer peripheral surface of the supporting section 22 is formed with a ventilation hole 2a, and the ventilation hole 2a is aligned with and connected to the side hole 3a. Figures 2 to 4 If the side hole 3a is located at the position of the cooling section 21, the outer peripheral surface of the cooling section 21 is formed with a ventilation hole 2a at a position aligned with the side hole 3a. Figure 5 If the side hole 3a is located at the position where the support section 22 is located, the vent 2a is formed on the outer circumference of the support section 22 aligned with the side hole 3a. If the side hole 3a is located at the position where both the cooling section 21 and the support section 22 are located, the vent 2a is formed on the outer circumference of the cooling section 21 and the outer circumference of the support section 22. The external airflow from the side hole 3a can enter the cooling section 21 and / or the support section 22 where the vent 2a is located through the vent 2a. The vent 2a can facilitate the external airflow to enter the interior of the cooling section 21 and / or the support section 22, thereby improving the extraction efficiency of the aerosol in the cooling section 21 and the support section 22.

[0071] It should be understood that the ventilation hole 2a is aligned with and connected to the side hole 3a means that the projection of the side hole 3a on the outer peripheral surface of the cooling section 21 and / or the outer peripheral surface of the supporting section 22 at least partially or completely overlaps with the ventilation hole 2a.

[0072] For some examples, see Figures 2 to 6 At least one of the cooling section 21 and the supporting section 22 is formed with a hollow channel 2b passing through two end surfaces in the longitudinal direction.

[0073] In one embodiment, please refer to Figures 2 to 5The cooling section 21 is formed with a hollow channel 2b passing through two end surfaces in the longitudinal direction. The hollow channel 2b can increase the specific surface area, improve the aerosol flow path, and achieve rapid cooling and reduce the inhalation resistance. Exemplarily, the cooling section 21 can reduce the temperature of the aerosol to below 50°C.

[0074] In another embodiment, see Figures 2 to 5 , the support section 22 is formed with a hollow channel 2b passing through two end surfaces in the longitudinal direction. In another embodiment, the cooling section 21 and the support section 22 are both formed with a hollow channel 2b. The hollow channel 2b of the support section 22 and the hollow channel 2b of the cooling section 21 can buffer the aerosol, significantly improving the buffering capacity of the aerosol, so that the aerosol can be released stably, the aerosol-generated product has good consistency from mouth to mouth, and can also improve the aerosol flow stroke to achieve rapid cooling.

[0075] For some examples, see Figures 2 to 5 , the central axis of the hollow channel 2b of the cooling section 21 coincides with the central axis of the hollow channel 2b of the supporting section 22. In this way, the aerosol from the hollow channel 2b of the supporting section 22 can enter the hollow channel 2b of the cooling section 21 roughly along a straight line.

[0076] For some examples, see Figure 5 The hydraulic diameter of the hollow channel 2b of the support section 22 is greater than the hydraulic diameter of the hollow channel 2b of the cooling section 21. The airflow velocity in the hollow channel 2b of the cooling section 21 is relatively fast, which can accelerate the aerosol extraction efficiency under the action of the Venturi effect.

[0077] For some examples, see Figure 2 and Figure 8 , the hydraulic diameter of the hollow channel 2b of the support section 22 is not greater than the hydraulic diameter of the hollow channel 2b of the cooling section 21. That is to say, both the support section 22 and the cooling section 21 are formed with a hollow channel 2b. In some embodiments, the hydraulic diameter of the hollow channel 2b of the support section 22 is equal to the hydraulic diameter of the hollow channel 2b of the cooling section 21. In other embodiments, the hydraulic diameter of the hollow channel 2b of the support section 22 is relatively small, and the aerosol can be quickly extracted to the cooling section 21. The hydraulic diameter of the hollow channel 2b of the cooling section 21 is larger, and the volume of the hollow channel 2b of the cooling section 21 can be increased, that is, the aerosol flow path is increased to achieve rapid cooling. For example, the cooling section 21 can reduce the temperature of the aerosol to below 50°C.

[0078] It should be noted that the hydraulic diameter refers to the ratio of four times the flow cross-sectional area to the perimeter. The flow cross-section refers to the cross-section taken by the streamline cluster perpendicular to the fluid. For example, if the flow cross-sectional shape of the hollow channel 2b is a regular quadrilateral, the hydraulic diameter is the ratio of four times the flow cross-sectional area of ​​the regular quadrilateral hollow channel 2b to the perimeter of the regular quadrilateral. For another example, if the flow cross-sectional shape of the hollow channel 2b is a circle, the hydraulic diameter is the diameter of the circular hollow channel 2b.

[0079] For some examples, see Figures 2 to 8 , ventilation holes 2a are formed at the positions where the outer peripheral surfaces of the cooling section 21 and the outer peripheral surfaces of the supporting section 22 are aligned with the side holes 3a, and the ventilation holes 2a are connected to the side holes 3a and the hollow passage 2b. In other words, at least one of the outer peripheral surfaces of the cooling section 21 and the outer peripheral surfaces of the supporting section 22 is formed with ventilation holes 3a, and the ventilation holes 2a are aligned with and connected to the side holes 3a. Specifically, the ventilation holes 2a pass through the wall surface of the hollow passage 2b. The external airflow enters the hollow passage 2b through the side holes 3a and the ventilation holes 2a, so that the mixing of the external airflow and the aerosol can be accelerated, and the aerosol released from the filtering section 23 is released in a larger amount, at a faster rate, and more stably.

[0080] The hollow channel 2b of the cooling section 21 is located in the central area of ​​the cooling section 21. In some embodiments, please refer to Figure 2 , the central axis of the cooling section 21 in the longitudinal direction passes through the hollow channel 2b thereon. Preferably, the central axis of the hollow channel 2b of the cooling section 21 coincides with the central axis of the cooling section 21 in the longitudinal direction. Since the flow velocity of the fluid is faster as it approaches the central area, the hollow channel 2b of the cooling section 21 is located in the central area of ​​the cooling section 21, so that the aerosol can maintain a faster flow velocity and the suction resistance is moderate.

[0081] The hollow passage 2b of the support section 22 is located in the central area of ​​the support section 22. In some embodiments, see Figure 2 , the central axis of the support segment 22 in the longitudinal direction passes through the hollow channel 2b thereon. Preferably, the central axis of the hollow channel 2b of the support segment 22 coincides with the central axis of the support segment 22 in the longitudinal direction. Since the flow velocity of the fluid is faster as it approaches the central area, the hollow channel 2b of the support segment 22 is located in the central area of ​​the support segment 22, so that the aerosol can maintain a faster flow velocity and the suction resistance is moderate.

[0082] The central axis refers to the symmetry line of an axisymmetric figure or a rotational figure. That is to say, the cooling section 21, the supporting section 22 and the hollow channel 2b can all be axisymmetric figures or rotational figures.

[0083] For some examples, see Figure 8At least one of the cooling section 21 and the supporting section 22 is formed with a side channel 2c passing through two end surfaces in the longitudinal direction, and the side channel 2c is located on the lateral outside of the hollow channel 2b. The side channel 2c can provide more aerosol flow paths, reduce suction resistance, improve aerosol extraction efficiency, reduce aerosol temperature, improve the stability of aerosol release, and enhance the user's suction experience.

[0084] For example, see Fig.12 and Fig.13 The hollow channel 2b and the side channel 2c together constitute a corrugated structure 40.

[0085] Exemplarily, in one embodiment, the cooling section 21 is formed with a hollow channel 2b and a side channel 2c, the side channel 2c is located on the lateral outer side of the hollow channel 2b of the cooling section 21, and the side channel 2c passes through the two longitudinal end surfaces of the cooling section 21. In one embodiment, the supporting section 22 is formed with a hollow channel 2b and a side channel 2c, the side channel 2c is located on the lateral outer side of the hollow channel 2b of the supporting section 22, and the side channel 2c passes through the two longitudinal end surfaces of the supporting section 22.

[0086] It should be noted that the transverse direction is perpendicular to the longitudinal direction. Taking the aerosol generating substrate segment 1 as a cylindrical shape as an example, the transverse direction is the radial direction.

[0087] In some embodiments, a flavoring substance is disposed in the side channel 2c. The flavoring substance can not only enrich or compensate the aroma, but also reduce the temperature of the aerosol by absorbing heat and releasing aroma.

[0088] Flavoring substances generally refer to substances contained in the substances ingested into the oral cavity that produce sensory impressions on sensory organs such as the tongue. Sensory impressions include physical sensations, chemical sensations, and psychological sensations. Exemplarily, the flavoring substance can be a flavoring sheet, which can contact with the aerosol at 80°C to 220°C and absorb the heat of the aerosol to release the fragrance, thereby cooling the aerosol.

[0089] Exemplarily, the flavoring substance can be installed into the side channel 2c by injection or coating.

[0090] For some examples, see Figure 8 , Fig.12 and Fig.13 The number of the side channels 2c is multiple, and the multiple side channels 2c are spaced around the outer periphery of the hollow channel 2b. The multiple side channels 2c can effectively change the flow state of the aerosol, thereby improving the cooling effect.

[0091] For some examples, see Fig.12The corrugated structure 40 includes an outer ring layer, an inner ring layer and a plurality of convex ridges. The outer ring layer is located on the transverse outer side of the inner ring layer and both are annular. The inner ring layer defines a central channel. The convex ridges are arranged between the outer ring layer and the inner ring layer. The plurality of convex ridges are arranged at intervals along the circumference to divide the space between the outer ring layer and the inner ring layer into a plurality of side channels 2c. In this way, the cooling section 21 can have a good structural strength and facilitate the aerosol to flow in the longitudinal direction. For example, the outer ring layer and the inner ring layer can both be annular.

[0092] For some examples, see Figure 3 The cooling section 21 may adopt a corrugated structure 40 .

[0093] For some examples, see Fig.10 The support section 22 may adopt a corrugated structure 40 .

[0094] Exemplarily, in some embodiments, the ventilation hole 2a may only pass through the outer ring layer. In other words, the ventilation hole 2a is communicated with the side channel 2c.

[0095] For example, in some embodiments, the ventilation hole 2a may pass through the outer annular layer and the inner annular layer. In other words, the ventilation hole 2a may be connected to the hollow channel 2b.

[0096] In some embodiments, the hydraulic diameter of the side hole 3a is 0.1 mm to 0.7 mm. For example, the hydraulic diameter of the side hole 3a is 0.1 mm, 0.15 mm, 0.2 mm, 0.25 mm, 0.3 mm, 0.35 mm, 0.4 mm, 0.45 mm, 0.5 mm, 0.6 mm or 0.7 mm, etc. In this way, the side hole 3a has little effect on the structural strength of the wrapping layer 3, and the air intake of a single side hole 3a is moderate.

[0097] For some examples, see Figure 1 The number of the side holes 3a is multiple, and the multiple side holes 3a are arranged at intervals along the circumferential direction to form an air intake group 3ab. The external airflow can enter the aerosol generating product from multiple directions in the circumferential direction, so that the external airflow contacts the aerosol at multiple angles and positions.

[0098] For some examples, see Figure 1 and Figure 2 The two side holes 3a form a pair, and the pair of side holes 3a are arranged on a straight line along the transverse direction. Exemplarily, the aerosol generating article is cylindrical, and the pair of side holes 3a are symmetrically arranged along the diameter line of the aerosol generating article.

[0099] For some examples, see Figure 1 , the number of the air intake groups 3ab is 1 to 7 (including 1 and 7). In this way, under the condition of ensuring a moderate air intake amount, the hydraulic diameter of a single side hole 3a can be relatively small.

[0100] In some embodiments, the number of side holes 3a in each air intake group 3ab is 2 to 16. Exemplarily, the number of side holes 3a in each air intake group 3ab is 2, 3, 5, 8, 10, 11, 15 or 16, etc. In this way, the multiple side holes 3a can cover multiple directions in the circumferential direction, and the hydraulic diameter of a single side hole 3a is moderate.

[0101] In some embodiments, the number of air inlet groups 3ab is multiple, and the multiple air inlet groups 3ab are arranged at intervals in the longitudinal direction, and the distance between two adjacent air inlet groups 3ab is not less than 0.5mm. Exemplarily, the distance between two adjacent air inlet groups 3ab is 0.5mm, 0.6mm or 1mm, etc. In this way, the multiple air inlet groups 3ab enable the aerosol generating product to introduce external airflow at multiple positions in the longitudinal direction, and the distance between two adjacent air inlet groups 3ab is moderate, so as to avoid the concentrated introduction of external airflow due to too small a distance, which causes airflow turbulence.

[0102] In some embodiments, the projection plane is perpendicular to the longitudinal direction, and the projection of the support section 22 coincides with the projection of the cooling section 21. Figures 2 to 11 The projection of the support section 22 and the projection of the cooling section 21 are both circular and have the same outer diameter. This facilitates the assembly of the support section 22 and the cooling section 21 into the wrapping layer 3. When the support section 22 abuts against the cooling section 21, the projections of the two overlap, which facilitates the support section 22 and the cooling section 21 to be formed by compounding or twisting.

[0103] In some embodiments, the projection plane is perpendicular to the longitudinal direction, and the projection of the filter section 23, the projection of the support section 22, the projection of the cooling section 21 and the projection of the aerosol generating matrix section 1 are all overlapped. Figures 2 to 11 , the aerosol generating matrix section 1, the cooling section 21, the support section 22 and the filtering section 23 are all cylindrical structures with the same outer diameter, the central axes of the aerosol generating matrix section 1, the cooling section 21, the support section 22 and the filtering section 23 coincide and are all along the longitudinal direction, the cooling section 21 is formed with a hollow channel 2b passing through the two end faces along the longitudinal direction, and the projection of the hollow channel 2b of the cooling section 21 is circular with the plane perpendicular to the longitudinal direction as the projection surface. In other words, the projection of the filtering section 23, the projection of the support section 22, the projection of the cooling section 21 and the projection of the aerosol generating matrix 1 are all circular and have the same outer diameter. This makes it easy to assemble the above structure into the wrapping layer 3. In this way, the aerosol generating product is also cylindrical, and the longitudinal direction is the central axis direction of the aerosol generating matrix section 1, the cooling section 21, the support section 22 and the filtering section 23.

[0104] In one embodiment, please refer to Figure 2The support section 22 is formed with a hollow channel 2b passing through the two end surfaces in the longitudinal direction, and the hydraulic diameter of the hollow channel 2b of the support section 22 is equal to the hydraulic diameter of the hollow channel 2b of the cooling section 21. In this way, the support section 22 can stably support the cooling section 21 and the aerosol generating substrate section 1.

[0105] In one embodiment, please refer to Figure 5 , the filter segment 23 is formed with a resistance reduction channel 23a passing through at least one end in the longitudinal direction. Exemplarily, in one embodiment, the resistance reduction channel 23a passes through one end of the filter segment 23 in the longitudinal direction. In another embodiment, the resistance reduction channel 23a passes through both ends of the filter segment 23 in the longitudinal direction. In this way, the resistance reduction channel 23a can provide a lower filtering effect, further increase the aerosol release amount, and avoid the aerosol generating product having an excessively large overall suction resistance or excessive weight.

[0106] The resistance reduction channel 23a of the filter section 23 is located in the central area thereof. Figure 5 , the central axis of the filtering section 23 coincides with the central axis of the resistance reduction channel 23a.

[0107] In one embodiment, please refer to Fig.10 and Fig.11 , the wrapping layer 3 is arranged to form an empty space as the cavity 3b, and the wall surface of the cavity 3b formed by the wrapping layer 3 is formed with a side hole 3a. In other words, the circumferential wall of the cavity 3b is the wrapping layer 3. The empty space refers to the space for airflow only. No solid or liquid substances are placed in the empty space. The side hole 3a is connected to the cavity 3b, and can introduce external airflow into the cavity 3b. The area of ​​the flow cross-section of the cavity 3b is large, which can provide a larger flow cross-section for the circulation of aerosols. The aerosol can be buffered in the cavity 3b to increase the buffering amount of the aerosol, providing a sufficient source of aerosol for the extraction and release of the aerosol.

[0108] In one embodiment, please refer to Fig.10 There is a cavity 3b between the filter section 23 and the cooling section 21. Thus, during the suction process, the external airflow enters the cavity 3b through the side hole 3a and flows to the filter section 23 together with the aerosol from the cooling section 21.

[0109] In one embodiment, please refer to Fig.11 There is a cavity 3b between the cooling section 21 and the supporting section 22. Thus, during the suction process, the external airflow enters the cavity 3b through the side hole 3a and flows to the cooling section 21 together with the aerosol from the supporting section 22.

[0110] In some embodiments, the support segment 22 can withstand a temperature not higher than 270° C. That is, the support segment 22 remains unchanged in shape at a temperature of 270° C. In this way, the support segment 22 has the characteristics of high heat resistance, which can avoid risks such as thermal collapse, thermal deformation, and residues that may fall from the support segment 22 blocking the airway 1a of the aerosol generating matrix segment 1, causing unstable aerosol release, etc.

[0111] In some embodiments, the support segment 22 includes a substrate and a metal coating. The substrate is annular to form a hollow channel 2b, and the metal coating is attached to at least one of the inner surface and the outer surface of the substrate along the lateral direction.

[0112] The metal coating includes, but is not limited to, at least one of aluminum foil, copper, and tin.

[0113] In some embodiments, the coating rate of the metal coating is greater than or equal to 5%. The coating rate refers to the ratio of the amount of the metal coating per unit area on the inner or outer surface of the substrate to the total amount of the metal coating and the substrate.

[0114] In some embodiments, the hollowness of the support segment 22 is not less than 30%. In this way, the hollowness of the support segment 22 is relatively large, which can reduce or prevent aerosol condensation in the support segment 22. The hollowness refers to the ratio of the volume of the hollow channel 2b to the total volume of the support segment 22.

[0115] In some embodiments, the support section 22 is formed with a plurality of air flow holes passing through two longitudinal end surfaces thereof, and the air flow holes are used to circulate aerosol.

[0116] In some embodiments, the acetate fiber is a structure in which tows are arranged side by side and spaced apart in the circumferential direction. Fig.11 , hollow acetate fiber 10 means that the center area of ​​the fiber bundle is hollow. Figure 8 Solid acetate fiber 20 means that there are only gaps between the fiber bundles and no hollow space.

[0117] In some embodiments, the filter segment 23 may be made of hollow acetate fiber 10 or solid acetate fiber 20, both of which can achieve directional filtration of harmful components in aerosol and adjust the suction resistance. Exemplarily, the suction resistance capacity of the filter segment 23 is 100 Pa to 350 Pa (including 100 Pa and 350 Pa).

[0118] In some embodiments, the cooling section 21 is formed with a plurality of flow holes passing through two longitudinal end surfaces thereof, and the flow holes are used to circulate the aerosol.

[0119] In some embodiments, the cooling section 21 and the supporting section 22 can be an integrally formed structure. For example, the cooling section 21 and the supporting section 22 can be integrally formed by extrusion, injection molding, die casting or the like.

[0120] In some embodiments, with the plane perpendicular to the longitudinal direction as the projection plane, the projection of the filter section 23, the projection of the support section 22, the projection of the cooling section 21 and the projection of the aerosol generating matrix section 1 can all be circular, elliptical or polygonal (such as square, prism or pentagon, etc.). In other words, the filter section 23, the support section 22, the cooling section 21 and the aerosol generating matrix section 1 can all be cylindrical or prism-shaped, etc.

[0121] In some embodiments, the shapes of the flow cross-sections of the side holes 3a, ventilation holes 2a, hollow channels 2b, side channels 2c, air channels 1a, resistance reduction channels 23a, air flow holes and flow holes include but are not limited to circular, elliptical or polygonal (such as square, prism or pentagon, etc.).

[0122] In some embodiments, the airway 1a is a curved airway, and at least part of the hole section of the curved airway is a curved shape with a non-zero curvature. The curved airway can greatly increase the flow path of the airflow without significantly increasing the length of the aerosol generating matrix section 1, and can extend the contact time between the airflow and the hole wall of the curved airway, thereby improving the aerosol extraction rate.

[0123] In one embodiment, the curved airway is in the shape of a spiral line. That is, the three-dimensional shape of the curved airway is in the shape of a spatial spiral line. The line connecting any point of the spiral curved airway and the starting point has an inclination angle relative to its axis. The spiral curved airway can greatly extend the flow path of the airflow, precipitate the aerosol from the aerosol generating matrix segment 1 into the curved airway, increase the flow speed of the aerosol in the aerosol generating matrix segment 1, thereby increasing the impact force of the airflow, allowing the aerosol to be evenly mixed, improving the uniformity of the aerosol, and enhancing the user's suction experience.

[0124] It should be noted that micropores may exist inside the aerosol generating matrix segment 1. For example, for the aerosol generating matrix segment 1 of the particle combination, the gaps between the particles constitute micropores. However, the airway 1a described in the present application is different from the micropores. The airway 1a described in the present application is a hole in the macroscopic sense, and the micropores are holes in the microscopic sense. The flow cross-sectional area and length of the airway 1a are much larger than those of the micropores. The airway 1a is mainly formed by design and processing, such as by die processing. Therefore, the flow cross-sectional area and length of the airway 1a can be changed according to design requirements, while the size of the micropores is determined by the gaps between the particles. For example, the material is a granular material, and the aerosol generating matrix segment 1 formed by extrusion of the material has micropores. The flow cross-sectional area and length of the micropores are naturally formed by the extrusion process and the material components. The micropores can be formed by a certain expansion after the material feeding tube flows out of the die.

[0125] The following schematically shows a specific embodiment, which is described in detail as follows:

[0126] In the first specific embodiment, please refer to Figure 1 and Figure 2 The aerosol generating matrix segment 1 has a plurality of linear air passages 1a extending in the longitudinal direction, the supporting segment 22 abuts against the downstream end face of the aerosol generating matrix segment 1, the cooling segment 21 abuts against the downstream end face of the supporting segment 22, and the filtering segment 23 abuts against the downstream end face of the cooling segment 21. The supporting segment 22 and the cooling segment 21 are both formed with hollow passages 2b, and the hydraulic diameter of the hollow passages 2b of the supporting segment 22 is equal to the hydraulic diameter of the hollow passages 2b of the cooling segment 21. The side hole 3a is located at the cooling segment 21, and the outer peripheral surface of the cooling segment 21 is formed with ventilation holes 2a at the position aligned with the side holes 3a. The ventilation holes 2a connect the hollow passages 2b and the side holes 3a of the cooling segment 21. The filtering segment 23 is a solid acetate fiber 20. The cooling segment 21 is a paper tube-shaped structure 30 having a hollow passage 2b. The supporting segment 22 is an aluminum foil tubular structure 50 having a hollow passage 2b.

[0127] It is understandable that the airway 1a in the first specific embodiment may be a curved airway, such as a spiral airway 1a, and the hydraulic diameter of the hollow channel 2b of the support section 22 may not be equal to the hydraulic diameter of the hollow channel 2b of the cooling section 21.

[0128] by Figure 1 and Figure 2 Taking the aerosol generating product as an example, when the aerosol generating matrix segment 1 is heated, the aerosol released by the medium of the aerosol generating matrix segment 1 constituting the airway 1a directly converges into the airway 1a. In addition, the aerosol generating matrix segment 1a also has micropores inside, and the micropores are at least partially connected and connected to the airway 1a. The aerosol generated by the heated aerosol generating matrix segment 1a can also converge into the airway 1a through the micropores. During the inhalation process, the aerosol generating matrix segment 1 is heated to generate aerosol. The aerosol generated by the part of the aerosol generating matrix segment 1 surrounding the airway 1a can directly enter the airway 1a. The aerosol generated by the part of the aerosol generating matrix segment 1 located around the airway 1a can enter the airway 1a through the micropores. The airflow in the airway 1b flows longitudinally and flows to the functional segment. That is to say, the aerosol from the aerosol generating matrix segment 1 passes through the supporting segment 22, the cooling segment 21 and the filtering segment 23 in sequence, and finally enters the user's oral cavity.

[0129] In the second specific embodiment, please refer to Figure 3The difference between the second specific embodiment and the first specific embodiment is that the hydraulic diameter of the hollow channel 2b of the support section 22 is greater than the hydraulic diameter of the hollow channel 2b of the cooling section 21. The support section 22 is a paper tube structure 30 having a hollow channel 2b. The wall thickness of the outer periphery of the support section 22 is less than or equal to the wall thickness of the aerosol generating matrix section 1. In this way, the cooling section 21 can withstand a temperature not higher than 200°C without thermal collapse, deformation, etc. The cooling section 21 is a corrugated structure 40 having a hollow channel 2b and multiple side channels 2c. Multiple side channels 2c can change the flow state of the aerosol and reduce the aerosol temperature.

[0130] In the third specific embodiment, please refer to Figure 4 The difference between the third specific embodiment and the second specific embodiment is that the support section 22 is a hollow acetate fiber 10 having a hollow channel 2b. The hollowness of the hollow channel 2b of the support section 22 is greater than or equal to 20%. Preferably, the hollowness of the hollow channel 2b of the support section 22 is between 35% and 40% (including 35% and 40%). In this way, the ratio of the volume of the bundle of the support section 22 to the total volume of the support section 22 is approximately 40%, which can prevent deformation and facilitate support. The cooling section 21 is a hollow acetate fiber 10 having a hollow channel 2b. The hydraulic diameter of the hollow channel 2b of the cooling section 21 is smaller than the hydraulic diameter of the hollow channel 2b of the support section 22. In this way, on the one hand, it is conducive to processing and forming and simplifies the demand for material diversification, thereby reducing the cost of material selection. On the other hand, the hollow channel 2b of the cooling section 21 and the hollow channel 2b of the supporting section 22 are designed with variable diameters. The aerosol is quickly extracted to the cooling section 21 for cooling through the Venturi effect generated by the variable diameter design. For example, the aerosol temperature is cooled from 180°C to 220°C (including 180°C and 220°C) of the aerosol generating matrix section 1 to 80°C-100°C. It can also effectively improve the aerosol extraction efficiency and has a significant advantage in the consistency of aerosol release from mouth to mouth.

[0131] In the fourth specific embodiment, please refer to Figure 5 The fourth specific embodiment differs from the third specific embodiment in that the side hole 3a is located at the support section 22, and a ventilation hole 2a is formed on the outer peripheral surface of the support section 22 in the position aligned with the side hole 3a, and the ventilation hole 2a connects the hollow channel 2b of the support section 22 and the side hole 3a. The support section 22 is a hollow paper tube structure 30 having a hollow channel 2b. The filter section 23 is a hollow acetate fiber 10 having a resistance-reducing channel 23a. The suction resistance capacity of the filter section 23 is 100Pa to 250Pa (including 100Pa and 250Pa).

[0132] In the fifth specific embodiment, please refer to Figure 6, the difference between the fifth specific embodiment and the fourth specific embodiment is that the side hole 3a is located at the cooling section 21, and the cooling section 21 is a solid acetate fiber 20, that is, the cooling section 21 does not have a hollow channel 2b. In this way, the cooling section 21 can withstand the thermal collapse, deformation and other supporting effects of the aerosol at a temperature not higher than 150°C, and the adjustable suction resistance of the cooling section 21 is between 100Pa and 350Pa (including 100Pa and 350Pa), which can achieve the overall suction resistance of the aerosol generating product of 600Pa to 1200Pa (including 600Pa and 1200Pa). The cooling section 21 can also further enhance the pre-filtration of large particles or oily substances released from the upstream aerosol generating matrix section 1, reduce the filtration pressure of the filtration section 23, and improve the safety of suction. The outer peripheral surface of the cooling section 21 is formed with a ventilation hole 2a at the position aligned with the side hole 3a. The supporting section 22 is a hollow acetate fiber 10 with a hollow channel 2b. The hollowness of the hollow channel 2b of the support section 22 is greater than or equal to 30%. In this way, under the premise of satisfying the supporting function, the buffer space of the support section 22 is increased to provide more buffer space for the aerosol.

[0133] In the sixth specific embodiment, please refer to Figure 7 The difference between the sixth embodiment and the fifth embodiment is that the support section 22 is a corrugated structure 40 having a hollow channel 2b and a plurality of side channels 2c.

[0134] In the seventh specific embodiment, please refer to Figure 8 The seventh specific embodiment differs from the sixth specific embodiment in that the filtering section 23 is solid acetate fiber 20. The cooling section 21 is hollow acetate fiber 10 having a hollow channel 2b. The hydraulic diameter of the hollow channel 2b of the supporting section 22 is smaller than the hydraulic diameter of the hollow channel 2b of the cooling section 21.

[0135] In the eighth specific embodiment, please refer to Fig. 9 The eighth specific embodiment differs from the seventh specific embodiment in that: the support section 22 is formed with a plurality of airflow holes passing through its two longitudinal end faces. The filter section 23 is a hollow acetate fiber 10 having a resistance reduction channel 23a. The hollowness of the hollow channel 2b of the cooling section 21 is greater than or equal to 75%, and the volume of the hollow channel 2b of the cooling section 21 is increased, that is, the aerosol flow path is increased to achieve rapid cooling, and the cooling section 21 has a thinner wall thickness, which is conducive to forming the ventilation hole 2a.

[0136] In the ninth specific embodiment, please refer to Fig.10The difference between the ninth specific embodiment and the eighth specific embodiment is that: there is a cavity 3b between the filter section 23 and the cooling section 21, and the wall surface of the wrapping layer 3 surrounding the cavity 3b is formed with a side hole 3a. The cooling section 21 is formed with a plurality of flow holes passing through its two longitudinal end faces. The support section 22 is a corrugated structure 40 having a hollow channel 2b and a plurality of side channels 2c. The hydraulic diameter of the flow hole is greater than or equal to the hydraulic diameter of the airway 1a, and the number of the flow holes is less than or equal to the number of the airways 1a. In this way, the overall suction resistance is adjusted by adjusting the number of flow holes and the hydraulic diameter, and a good cooling effect is achieved. The hollowness of the resistance reduction channel 23a of the transition section is less than or equal to 45%, which is conducive to rapid extraction of aerosols and stable suction from mouth to mouth.

[0137] In the tenth specific embodiment, please refer to Fig.11 The tenth specific embodiment differs from the ninth specific embodiment in that the cavity 3b is located between the cooling section 21 and the supporting section 22. The aerosol flows through the supporting section 22 and is cooled by the heat absorption of the flavoring substance, and then enters the cavity 3b. The aerosol is pre-cooled by the external airflow in the cavity 3b, for example, to below 130°C, which relieves the cooling pressure of the downstream cooling section 21, and then enters the cooling section 21 for cooling. The aerosol temperature after cooling is less than 55°C, and finally is sucked out through the filter section 23 of the hollow acetate fiber 10.

[0138] The cooling materials used in the cooling section 21 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.

[0139] The filter material used in the filter section 23 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, polyethylene terephthalate (PET) and the like.

[0140] The materials of the cooling section 21 and the filtering section 23 may be the same or different.

[0141] In one embodiment, the aerosol-generating substrate segment 1 includes plant raw materials, auxiliary raw materials, smoke-generating agent raw materials, adhesive raw materials and flavor raw materials.

[0142] 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 flavor 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 flavor raw material can enhance the release of 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 segment 1 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 constitute a stable mixture to avoid a loose structure.

[0143] 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.

[0144] 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 segment 1, thereby increasing the aerosol release rate.

[0145] 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.

[0146] 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.

[0147] 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.

[0148] 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 1 and is harmless to the human body.

[0149] 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.

[0150] 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.

[0151] 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: an aerosol generating substrate segment, formed with an air passage, the air passage passing through at least one end surface of the aerosol generating substrate segment in the longitudinal direction; The functional section includes a cooling section, a supporting section and a filtering section, wherein the aerosol generating matrix section, the supporting section, the cooling section and the filtering section are sequentially arranged in the longitudinal direction; A wrapping layer is wrapped around the periphery of the aerosol generating substrate segment and the periphery of the functional segment, and a side hole is formed at a portion of the wrapping layer between the aerosol generating substrate segment and the filtering segment.

2. The aerosol-generating article according to claim 1, wherein At least one of the outer circumferential surface of the cooling section and the outer circumferential surface of the supporting section is formed with a ventilation hole, and the ventilation hole is aligned with and connected to the side hole.

3. The aerosol-generating article according to claim 1, wherein At least one of the cooling section and the supporting section is formed with a hollow channel passing through two end surfaces along the longitudinal direction.

4. The aerosol-generating article according to claim 3, wherein: The hydraulic diameter of the hollow channel of the supporting section is not greater than the hydraulic diameter of the hollow channel of the cooling section.

5. The aerosol-generating article according to claim 3, wherein: Ventilation holes are formed on the outer circumferential surfaces of the cooling section and the supporting section at locations aligned with the side holes, and the ventilation holes communicate with the side holes and the hollow channel.

6. The aerosol-generating article of claim 3, wherein: At least one of the cooling section and the supporting section is formed with side channels passing through two end surfaces along the longitudinal direction, and the side channels are located on the lateral outside of the hollow channel.

7. An aerosol-generating article according to claim 6, characterized in that The side channel is provided with a flavoring substance.

8. The aerosol-generating article of claim 6, wherein: There are multiple side channels, and the multiple side channels are distributed around the periphery of the hollow channel at intervals.

9. The aerosol-generating article of claim 1, wherein: The aerosol generating matrix section, the cooling section, the supporting section and the filtering section are all cylindrical structures with the same outer diameter. The central axes of the aerosol generating matrix section, the cooling section, the supporting section and the filtering section coincide with each other and are all along the longitudinal direction. The cooling section is formed with a hollow channel passing through two end faces along the longitudinal direction, and the projection surface is a plane perpendicular to the longitudinal direction, and the projection of the hollow channel of the cooling section is circular.

10. An aerosol-generating article according to claim 9, characterized in that The support section is formed with a hollow channel passing through two end surfaces along the longitudinal direction, and the hydraulic diameter of the hollow channel of the support section is equal to the hydraulic diameter of the hollow channel of the cooling section.

11. The aerosol-generating article of claim 1 , wherein: The filter section is formed with a resistance-reducing channel passing through at least one end in the longitudinal direction.

12. The aerosol-generating article of claim 1, wherein: The empty space formed by the wrapping layer is a cavity, and the wall surface of the cavity formed by the wrapping layer is formed with the side hole; The cavity is provided between the filtering section and the cooling section; and / or the cavity is provided between the cooling section and the supporting section.

13. The aerosol-generating article of claim 1, wherein: The hydraulic diameter of the side hole is 0.1 mm to 0.7 mm.

14. The aerosol-generating article of claim 1, wherein: There are multiple side holes, and the multiple side holes are arranged at intervals along the circumferential direction to form an air intake group.

15. An aerosol-generating article according to claim 14, characterized in that The number of the air intake groups is 1 to 7; and / or, The number of the side holes in each of the air intake groups is 2 to 16.

16. The aerosol-generating article of claim 14, wherein: There are multiple air intake groups, and the multiple air intake groups are arranged at intervals in the longitudinal direction, and the distance between two adjacent air intake groups is not less than 0.5 mm.

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