Smoking body, aerosol generating device and aerosol generating system

Abstract

The utility model relates to a smoke generating body and an aerosol generating device and system. The smoke generating body comprises a porous material base body and a smoke generating agent, the smoke generating agent is adsorbed in the porous material base body, a groove is formed in the side wall of the porous material base body, and the groove extends from one end of the porous material base body to the other end of the porous material base body. Therefore, the problem of penetration of the smoke agent can be reduced while a good atomization effect is obtained.

Description

Technical Field

[0001] The utility model relates to the technical field of aerosol generation, in particular to a smoke generating body, an aerosol generating device and an aerosol generating system. Background Art

[0002] An aerosol generating device is a device that can convert a smoke generating agent such as a liquid or solid substance into an aerosol.

[0003] The heat-not-burn cigarette is a special aerosol generating device, and it will be described by taking it as an example. The heating temperature of the heat-not-burn cigarette is usually 200°C to 400°C, which is much lower than the combustion temperature of traditional cigarettes, and the harmful components generated by heating are greatly reduced, so it has developed rapidly. In order to simulate the "smoking" effect of traditional cigarettes, a smoke generating agent needs to be added to the smoke generating body of the heated cigarette. The commonly used smoke generating agent is glycerol or a mixed solvent containing glycerol, and its mass content is usually 20% to 40%. In order to pursue a stronger smoking effect, the glycerol content will be higher.

[0004] The high content of glycerol in the heat-not-burn cigarette will penetrate to the outside of the wrapping material layer, showing patches, which seriously affects the appearance quality of the cigarette and the experience of consumers.

[0005] Therefore, it is necessary to improve the traditional technology to reduce the problem of smoke generating agent penetration while obtaining a good atomization effect. Summary of the Utility Model

[0006] Based on this, it is necessary to provide a smoke generating body, an aerosol generating device and an aerosol generating system, which can reduce the problem of smoke generating agent penetration while obtaining a good atomization effect.

[0007] In the first aspect of the present application, a smoke generating body is provided. The smoke generating body includes a porous material matrix and a smoke generating agent adsorbed in the porous material matrix. A groove is provided on the side wall of the porous material matrix, and the groove extends from one end of the porous material matrix to the other end.

[0008] The traditional matrix for adsorbing the smoke generating agent is generally formed of materials such as tobacco leaves, cut tobacco, stem cut tobacco, and tobacco sheet. These materials have no porous structure. Therefore, on the one hand, the adsorption capacity for the smoke generating agent is limited, and on the other hand, the smoke generating agent is likely to penetrate after adsorption, especially when the adsorption amount is large.

[0009] Thus, the above-mentioned smoke-generating body uses a porous material matrix, and the smoke agent is adsorbed in the porous material matrix, which can adsorb more smoke agent and is not prone to leakage. In addition, a through groove is provided on the side wall of the porous material matrix, and this groove can serve as a channel for smoke transmission. When the smoke-generating body is atomized by heat, the smoke formed by atomization in the central region of the smoke-generating body is more likely to diffuse to the groove on the side wall. This through channel also facilitates the transmission of the atomized smoke, thus improving the smoke release efficiency, obtaining a good atomization effect, and reducing the penetration problem at the same time. Further, when the above-mentioned smoke-generating body is applied to cigarettes, it can also improve the appearance quality of cigarettes and the experience of consumers.

[0010] In some embodiments, based on the total area of the side wall of the smoke-generating body, the area proportion of the region where the groove is located is from 1 / 5 to 4 / 5.

[0011] In some embodiments, based on the total area of the side wall of the smoke-generating body, the area proportion of the region where the groove is located is from 1 / 4 to 3 / 4.

[0012] In some embodiments, the cross-sectional shape of the groove is a sector, a polygon, or an irregular shape.

[0013] In some embodiments, the number of the grooves on the side wall of the smoke-generating body is 1 to 50.

[0014] In some embodiments, the porous material matrix is a cylindrical structure, and the groove is located on the side wall of the cylindrical structure.

[0015] In some embodiments, the length of the porous material matrix is 2 mm to 15 mm.

[0016] In some embodiments, a pore channel is provided inside the porous material matrix, and the pore channel extends from one end of the porous material matrix to the other end.

[0017] In some embodiments, the pore diameter of the pore channel is 1.0 mm to 3.0 mm.

[0018] In some embodiments, based on the volume of the cylindrical structure, the volume proportion of the groove and the pore channel is 5% to 40%.

[0019] In some embodiments, the number of the pore channels is 1 to 10.

[0020] In some embodiments, the cross-sectional shape of the pore channel is a circle, an ellipse, a sector, a polygon, or an irregular shape.

[0021] In some embodiments, the porous material matrix is an inorganic porous material matrix.

[0022] In some of these embodiments, the porous material substrate is a porous particulate material substrate.

[0023] In a second aspect of the present application, there is provided an aerosol generating device, including a wrapping material layer, a filter body, a hollow device, and a fuming body provided in the second aspect of the present application; the wrapping material layer is wrapped around the outside of the filter body, the hollow device, and the fuming body that are connected in sequence; a channel is formed between the area of the side wall of the fuming body where the groove is provided and the wrapping material layer.

[0024] In a third aspect of the present application, there is provided an aerosol generating system, including the fuming body provided in the first aspect of the present application or the aerosol generating device provided in the second aspect of the present application, and a heating appliance; the heating appliance is used to heat the fuming body or the aerosol generating device.

[0025] In some of these embodiments, the heating appliance includes a heating component, a battery component, a control component, and a housing. The battery component is a battery component for supplying power to the heating appliance, the control component is used to control the battery component, and the heating component, the battery component, and the control component are accommodated in the housing. Description of the Drawings

[0026] Figure 1 It is a schematic diagram of the radial cross-sectional structure of the fuming body according to an embodiment of the present application;

[0027] Figure 2 It is a schematic diagram of the cross-sectional structure of the aerosol generating device according to an embodiment of the present application;

[0028] Figure 3 It is a schematic diagram of the radial cross-sectional structure of the fuming body according to another embodiment of the present application.

[0029] Description of the Reference Numerals:

[0030] 10. Filter body; 20. Hollow device; 30. Fuming body; 31. Groove; 32. Channel; 40. Wrapping material layer; 50. Aerosol matrix. Detailed Embodiments

[0031] To facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. Preferred embodiments of the present utility model are shown in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. It should be understood that the purpose of providing these embodiments is to make the understanding of the disclosed content of the present utility model more thorough and comprehensive.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this utility model belongs. The terms used in the description of this utility model in this article are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0033] In the description of this utility model, it should be understood that the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "a plurality of" means two or more unless otherwise specifically defined.

[0034] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this utility model and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation on this utility model.

[0035] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0036] In this utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected to", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0037] In the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature has a lower horizontal height than the second feature.

[0038] The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0039] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this utility model belongs. The terms used in the description of this utility model herein are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0041] As described in the background art, increasing the content of the smoke generator can improve the atomization effect, but it will increase the problem of smoke generator penetration. To reduce the penetration phenomenon, one technique is to add an anti-penetration layer in the wrapping material layer, but this increases the cost. Based on this, the present application provides a smoke body, a preparation method thereof, an aerosol generating device and a system, which can obtain a good atomization effect while reducing the problem of smoke generator penetration.

[0042] Furthermore, when the above-mentioned smoke body is applied to cigarettes, it can also improve the appearance quality of cigarettes and the experience of consumers.

[0043] Please refer to Figure 1 , an embodiment of the present application provides a smoke body 30. The smoke body 30 includes a porous material matrix and a smoke generator, and the smoke generator is adsorbed in the porous material of the porous material matrix. A groove 31 is provided on the side wall of the porous material matrix, and the groove 31 extends from one end of the porous material matrix to the other end.

[0044] Traditional matrices for adsorbing smoke agents are generally formed of plant fibers such as tobacco leaves, cut tobacco, stem cuttings, and reconstituted tobacco. These materials do not have a porous structure themselves. Therefore, on the one hand, their adsorption capacity for smoke agents is limited, and on the other hand, it is easy to cause the penetration of smoke agents after adsorption, especially when the adsorption amount is large.

[0045] Taking reconstituted tobacco as an example, its saturated adsorption capacity for smoke agents such as glycerol is low. For example, when the mass content of glycerol exceeds 20%, the surface of the smoke body will become wet, which easily leads to penetration and agglomeration. For heat-not-burn cigarettes, taking the smoke agent glycerol as an example, glycerol can evaporate and be released above 150°C. However, due to the poor thermal conductivity of the smoke body made of plant fiber materials, the set temperature of the central heating type heating component is about 350°C, and the set temperature of the circumferential heating type heating component is about 250°C. Usually, only the heated material close to the heat source can be heated to near the set temperature, while the temperature of most of the heated materials in the area is much lower than the set temperature range. Therefore, in fact, the efficiency of glycerol release and atomization is not high. The glycerol released and heated in the high-temperature area will be adsorbed and absorbed by the smoke body in the low-temperature area, which also reduces the efficiency of glycerol release and atomization. In addition, too high heating temperature will cause the pyrolysis of glycerol, generating harmful substances such as acetaldehyde and acrolein. Therefore, the present application has made the above improvements to the smoke body.

[0046] In this way, the above-mentioned smoke body 30 adopts a porous material matrix, and the smoke agent is adsorbed in the porous material matrix, which can adsorb more smoke agents and is not easy to leak. In addition, a through groove 31 is provided on the side wall of the porous material matrix. This groove 31 can be used as a channel for smoke transmission. When the smoke body 30 is atomized by heating, the smoke formed by atomization in the central area of the smoke body 30 is more likely to diffuse to the groove 31 on the side wall. This through channel also facilitates the transmission of the atomized smoke, thus improving the smoke release efficiency, obtaining a good atomization effect, and at the same time reducing the penetration problem. Further, when the above-mentioned smoke body 30 is applied to cigarettes, it can also improve the appearance quality of cigarettes and the experience of consumers.

[0047] Specifically, the smoke agent is adsorbed in the porous material of the porous material matrix.

[0048] Please refer to Figure 2 , another embodiment of the present application also provides an aerosol generating device, including a filter body 10, a hollow device 20, the above-mentioned smoke body 30, and a wrapping material layer 40; the wrapping material layer 40 is wrapped around the outside of the filter body 10, the hollow device 20, and the smoke body 30 connected in sequence; the groove 31 of the smoke body 30 penetrates from one end of the smoke body 30 close to the hollow device 20 to the other end, and a channel is formed between the area of the side wall of the smoke body 30 provided with the groove 31 and the wrapping material layer 40.

[0049] Thus, for the above aerosol generating device, the use of the above-mentioned smoke generating body 30 allows it to adsorb more smoke agent and is not prone to leakage. In addition, a channel is formed between the area of the side wall of the above-mentioned smoke generating body 30 where the through groove 31 is provided and the wrapping material layer 40. When the smoke generating body 30 is heated and atomized, the smoke formed by atomization in the area near the center of the smoke generating body 30 is more likely to diffuse to the groove 31 on the side wall. At the same time, this through channel also facilitates the transmission of the atomized smoke, thus improving the smoke release efficiency, obtaining a good atomization effect, and further reducing the penetration problem.

[0050] Further, the hollow device 20 has a hollow portion, and the channel formed between the area of the side wall of the smoke generating body 30 where the groove 31 is provided and the wrapping material layer 40 communicates with this hollow portion. Thus, the smoke can be very quickly transmitted from this channel to the hollow portion of the hollow device 20, thereby enhancing the smoke release efficiency.

[0051] In some embodiments, based on the total area of the side wall of the smoke generating body 30, the proportion of the area of the region where the groove 31 is located is from 1 / 5 to 4 / 5. As an example, this area ratio can be 1 / 5, 1 / 4, 30%, 1 / 3, 35%, 2 / 5, 1 / 2, 55%, 60%, 2 / 3, 70%, 3 / 4, 4 / 5, or within the range formed by any two of the above point values. It can be understood that the total area of the side wall of the smoke generating body 30 refers to the side wall area of the smoke generating body 30 without the groove 31 being opened; taking the porous material substrate as a cylindrical structure in the following text as an example, the total area of the side wall of the smoke generating body 30 is the side wall area of the porous material substrate presenting a cylindrical structure as a whole.

[0052] Further, based on the total area of the side wall of the smoke generating body 30, the proportion of the area of the region where the groove 31 is located is from 1 / 4 to 3 / 4. Further, the proportion of this area can be from 1 / 3 to 2 / 3. Optionally, the proportion of the area of the region where the groove 31 is located is 50% - 70%.

[0053] The proportion of the area of the region where the groove 31 is located can affect the smoke transmission and smoke release efficiency. Further controlling it within this range can enhance the smoke release efficiency and obtain a good atomization effect.

[0054] In some embodiments, the aerosol generating device can be used in combination with a surrounding heating type heating component or a central heating type heating component.

[0055] In a specific example, the aerosol generating device can be used in combination with a surrounding heating type heating component, and the area of the side wall of the smoke generating body 30 where the groove 31 is not provided is in contact with the wrapping material layer 40. Thus, the area of the side wall of the smoke generating body 30 in contact with the wrapping material layer 40 can ensure the heating efficiency of the heating appliance for heating the aerosol generating device, so as to cause the smoke generating body 30 to be heated and atomized, generating an atomization effect.

[0056] In some of these embodiments, the cross-sectional shape of the groove 31 is a sector, a polygon, or an irregular shape.

[0057] Further, the sector includes a semi-circle, a sector less than 180°, or a sector greater than 180°; the same applies hereinafter.

[0058] Further, the polygon includes, but is not limited to, a triangle, a quadrilateral, a pentagon, a hexagon, etc. The quadrilateral includes, but is not limited to, a square, a rectangle, a trapezoid, a parallelogram, etc. In the example as Figure 1 or Figure 3 shown, the cross-sectional shape of the groove 31 is a sector.

[0059] In some of these embodiments, the number of grooves 31 on the side wall of the smoke generating body 30 is at least one, such as 1 to 50, optionally 3 to 30; further optionally 4 to 20, and can also be within the range formed by any two integers from 1 to 50.

[0060] In some of these embodiments, the porous material substrate is a cylindrical structure, and the groove 31 is located on the side wall of the cylindrical structure. Further, the filter body 10 and the hollow device 20 are also cylindrical, and the wrapping material layer 40 is formed into a cylindrical shape and wrapped around the outside of the cylindrical filter body 10, hollow device 20, and smoke generating body 30. Further, since the hollow device 20 has a hollow portion, it is a cylindrical shape.

[0061] Further, the smoke generating body 30 is cylindrical, and the groove 31 penetrates from one end to the other end in the axial direction of the porous material substrate; the groove 31 axially communicates with the two opposite end faces of the porous material substrate. In the aerosol generating device, the groove 31 of the smoke generating body 30 penetrates from one end close to the hollow device 20 to the other end of the porous material substrate.

[0062] Further, the length (dimension in the axial direction) of the smoke generating body 30 or the porous material substrate is 2 mm to 15 mm. As an example, it can be 2 mm, 3 mm, 5 mm, 6 mm, 8 mm, 10 mm, 12 mm, 15 mm, or within the range formed by any two of the above point values. Optionally, the length can be 3 mm to 12 mm; more optionally 5 mm to 10 mm.

[0063] Further, the cross-sectional shapes and sizes of any two positions where the groove 31 penetrates from one end to the other end in the axial direction can be the same or different. In a specific example, the cross-sectional shapes of any two positions where the groove 31 penetrates from one end to the other end in the axial direction are the same. Further, not only are the cross-sectional shapes the same but they also coincide with each other.

[0064] Further, the total arc length of the side wall of the smoke generating body 30 in contact with the wrapping material layer 40 accounts for 1 / 5 to 4 / 5 of the total inner circumference of the wrapping material layer 40; as an example, this ratio can be 1 / 5, 1 / 4, 30%, 1 / 3, 35%, 2 / 5, 1 / 2, 55%, 60%, 2 / 3, 70%, 3 / 4, 4 / 5, or within the range formed by any two of the above point values. Further, this ratio can be 1 / 4 to 3 / 4, and more preferably 1 / 3 to 2 / 3. Please continue to refer to Figure 1 , the total inner circumference of the wrapping material layer 40 is the same as the outer circumference of the smoke generating body 30 (the circular ring formed by the outermost solid line and the dashed line); the total arc length of the side wall of the smoke generating body 30 in contact with the wrapping material layer 40 is the Figure 1 total length of the outer solid line area in

[0065] In some embodiments, a channel 32 is provided inside the porous material matrix, and the channel 32 extends from one end of the porous material matrix to the other end; specifically, it extends along the axis of the cylinder. Thus, the channel 32 can also communicate with the hollow portion of the hollow device 20. On the one hand, the channel 32 can be used for smoke transmission, and on the other hand, in some examples, it can be used to accommodate a central heating type heating component to achieve central heating.

[0066] Further, the aperture of the channel 32 is 1.0 mm to 3.0 mm. As an example, it can be 1.0 mm, 2.0 mm, 3.0 mm, or within the range formed by any two of the above point values as the end values

[0067] In some embodiments, based on the volume of the cylindrical structure, the volume ratio of the groove 31 and the channel 32 is 5% to 40%. As an example, the volume ratio of the channel 32 can be 5%, 8%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, or within the range formed by any two of the above point values as the end values. Further, this volume ratio can be 30% to 40%.

[0068] Further, the volume ratio of the channel is 2% to 20%, and the rest is the volume ratio of the groove. As an example, the volume ratio of the channel is 2%, 3%, 5%, 8%, 10%, 12%, 15%, 18%, 20%, or within the range formed by any two of the above point values as the end values.

[0069] Further, the number of channels 32 inside the smoke generating body 30 is at least one, such as 1 to 10, for example, it can be 1 to 3. Further, at least one channel 32 is located at the axis of the smoke generating body 30.

[0070] In some of these embodiments, the cross-sectional shape of the channel 32 is circular, elliptical, fan-shaped, polygonal, or irregular. Further, the polygon includes, but is not limited to, a triangle, a quadrilateral, a pentagon, a hexagon, etc. The quadrilateral includes, but is not limited to, a square, a rectangle, a trapezoid, a parallelogram, etc.

[0071] In some of these embodiments, in the radial cross-section of the smoke generating body 30, the total area of the grooves 31 and the channels 32 accounts for 5% - 40% of the inner cross-section formed by enclosing the wrapping material layer 40; as an example, the area ratio of the channel 32 can be 5%, 8%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, or within the range formed by any two of the above point values as the end values. Further, the area ratio can be 10% - 30%, and can be optionally 15% - 25%.

[0072] Please refer to Figure 3 , in some other embodiments, no channel 32 is provided inside the smoke generating body 30, which is a solid structure macroscopically.

[0073] In some of these embodiments, the porous material matrix is an inorganic porous material matrix.

[0074] In some embodiments, the porous material matrix is a porous particulate material matrix, and the porous material is a porous particulate material. Further, the porous material is an inorganic porous particulate material.

[0075] In some of these embodiments, the smoke generating body 30 includes a porous particulate material matrix and a smoke generating agent, and the smoke generating agent is adsorbed in the porous particulate material matrix. The porous particulate material matrix is different from the traditional smoke generating body 30 made of plant fiber material. The porous material in the porous particulate material matrix is a porous particulate material, which can adsorb a higher content of the smoke generating agent without exudation, so the penetration of the smoke generating agent such as glycerol can be reduced.

[0076] Further, for the above-mentioned smoke generating body 30 using a porous particulate material matrix, combined with the groove 31 structure design of the smoke generating body 30, it is beneficial to the atomization release efficiency of the smoke generating agent with a high adsorption amount.

[0077] Further, the porous particulate material matrix is a heat-conducting material. The good heat-conducting performance of the porous particulate material matrix can improve the heat conduction of the smoke generating body 30, improve its heat uniformity, and improve the atomization release efficiency of the smoke generating agent such as glycerol.

[0078] Further, the porous particulate material of the porous particulate material matrix includes at least one of natural porous mineral materials, metal oxides, hydroxides, carbonates, sulfates, activated carbon, and molecular sieves. Further, the natural porous mineral materials include at least one of diatomaceous earth, montmorillonite, sepiolite, and kaolin.

[0079] Further, the average particle size of the porous particulate material is from 200 microns to 600 microns; by way of example, it may be 200 microns, 300 microns, 400 microns, 500 microns, 600 microns, or within the range formed by any two of the above point values as the end values.

[0080] Further, the smoke generator includes at least one of glycerol, propylene glycol, ethylene glycol, xylitol, and erythritol. Optionally, the smoke generator at least includes glycerol; optionally, it may further include at least one of propylene glycol, ethylene glycol, xylitol, and erythritol.

[0081] In some embodiments, the smoke body 30 is applied to a cigarette. The mass of the smoke generator in the smoke body 30 is 15 mg to 30 mg per cigarette, such as 15 mg per cigarette, 20 mg per cigarette, 25 mg per cigarette, 30 mg per cigarette, or within the range formed by any two of the above point values as the end values. Further, the mass of the smoke generator contained in each aerosol generating device is 15 mg to 30 mg.

[0082] In some embodiments, the smoke body 30 further includes one or more of a tobacco extract, a green tea extract, a black tea extract, a coffee flavor essence, a mint essence, an orange flavor essence, a strawberry flavor essence, a honeydew melon flavor essence, and a mango flavor essence, which are adsorbed in the porous material. Further, in some examples, the smoke body 30 further includes a tobacco extract.

[0083] In other embodiments, the smoke body 30 does not contain a tobacco component.

[0084] One embodiment of the present application provides a preparation method of any one of the above smoke bodies, including the following step S10:

[0085] Let the porous material adsorb the smoke generator, and then extrude and mold the porous material adsorbed with the smoke generator to obtain the smoke body 30.

[0086] The above preparation method of the smoke body allows the porous material to first adsorb the smoke generator and then be extruded and molded to form a porous material matrix, so that the smoke generator is adsorbed in the porous material in the porous material matrix, enabling the smoke body to adsorb more smoke generator and not easily leak.

[0087] Understandably, in the process of extruding and molding the porous material adsorbed with the smoke agent, a binder can be added or not added according to the viscosity requirements of the porous material. Some porous materials are viscous by themselves, so the binder can be not added; while some porous materials have low viscosity, and the binder can be added to increase the viscosity and facilitate molding. Further, the binder includes at least one of gum, cellulose binder, polysaccharide, organic acid, and conjugate base salt of organic acid. Among them, the most commonly used binder is carboxymethyl cellulose (sodium), and the dosage is 0.5wt% - 2wt%, based on the weight of the porous material adsorbed with the smoke agent; as an example, the dosage ratio of this binder can be 0.5wt%, 0.8wt%, 1wt%, 1.2wt%, 1.5wt%, 2wt%, or within the range formed by any two of the above point values.

[0088] In some of these embodiments, the step S10 of adsorbing the smoke agent on the porous material and then extruding and molding the porous material adsorbed with the smoke agent includes the following steps S11 - S13:

[0089] S11. Adsorb the smoke agent on the porous material;

[0090] S12. Granulate the porous material adsorbed with the smoke agent;

[0091] S13. Extrude and mold the porous granular material obtained by granulation to obtain the smoke body 30.

[0092] Further, one of the methods such as impregnation, stirring and mixing, spraying, etc. can be used to make the porous material adsorb the smoke agent. Further, control the adsorption time to reach the saturated adsorption amount.

[0093] Further, before the above-mentioned porous material adsorbs the smoke agent or granulates, it also includes a pretreatment step: crushing the material to an average diameter less than or equal to 80 microns.

[0094] Further, after granulation and before extrusion and molding, it also includes processes such as drying, sizing, and sieving the porous granular material obtained by granulation, where the drying temperature is lower than the evaporation temperature of the smoke agent. In this way, a porous granular material with an average particle size of 200 microns - 600 microns is prepared.

[0095] Or, in some other embodiments, in some of these embodiments, the step S10 of adsorbing the smoke agent on the porous material and then extruding and molding the porous material adsorbed with the smoke agent includes the following steps S21 - S23:

[0096] S21. Granulate the porous material to obtain a porous granular material;

[0097] S22. Adsorb the smoke agent on the porous granular material;

[0098] S23. Then, the porous particulate material adsorbed with the smoke agent is extruded into a molded body to obtain the smoke body 30.

[0099] Further, the porous particulate material can be adsorbed with the smoke agent by one of methods such as impregnation, stirring and mixing, spraying, etc. Further, the adsorption time is controlled to reach the saturated adsorption amount.

[0100] Further, after granulating to obtain the porous particulate material and before the porous particulate material is adsorbed with the smoke agent, it further includes processes such as drying, sizing, and sieving the obtained porous particulate material in sequence, wherein the drying temperature is lower than the evaporation temperature of the smoke agent. Thus, a porous particulate material with an average particle size of 200 microns to 600 microns is prepared.

[0101] Further, for extrusion molding, according to the diameter of the heated cigarette, a corresponding mold can be used to extrude into a corresponding shape; according to requirements such as the shape of the groove, a corresponding mold can be used to extrude into a corresponding shape; according to requirements such as the shape of the pore channel, a corresponding mold can be used to extrude into a corresponding shape.

[0102] One embodiment of the present application provides a preparation method of any one of the above aerosol generating devices, including the following steps:

[0103] The filter body 10, the hollow device 20, and the smoke body 30 are sequentially arranged, and a wrapping material layer 40 is used to wrap the outside of the sequentially connected filter body 10, hollow device 20, and smoke body 30 to obtain the aerosol generating device.

[0104] In some embodiments, the aerosol generating device can also be used in combination with an aerosol matrix 50. Further, for example, the aerosol matrix 50 can be arranged on the side of the smoke body 30 away from the hollow device 20, and a wrapping material layer 40 is used to wrap the outside of the sequentially connected filter body 10, hollow device 20, smoke body 30, and aerosol matrix 50. Further, the aerosol matrix 50 can be a matrix formed by plant fibers such as tobacco leaves, cut tobacco, stem cut tobacco, and reconstituted tobacco.

[0105] Further, the aerosol matrix 50 contains a smoke agent, and the mass of the smoke agent in the smoke body 30 accounts for 25% - 40% of the total mass of the smoke agents in both the aerosol matrix 50 and the smoke body 30. As examples, it can be 25%, 30%, 35%, 37.5%, or 40%, or within the range formed by any two of the above point values.

[0106] It can be understood that in some examples, the smoke body 30 can also be used alone without being used in combination with the aerosol matrix 50.

[0107] Another embodiment of the present application further provides an aerosol generating system, including any one of the above aerosol generating devices and a heating appliance for heating the aerosol generating device.

[0108] In some embodiments, the heating appliance includes a heating component, a battery component, a control component, and a housing. The battery component is used to supply power to the heating appliance, the control component is used to control the battery component, and the heating component, the battery component, and the control component are housed in the housing.

[0109] Furthermore, the heating component can be a central heating type heating component or a circumferential heating type heating component.

[0110] In order to make the objectives, technical solutions, and advantages of this application more concise and clear, specific embodiments are used to illustrate this application below. However, this application is by no means limited to these embodiments. The embodiments described below are only preferred embodiments of this application and can be used to describe this application, and should not be construed as a limitation on the scope of this application. It should be noted that any modifications, equivalent replacements, and improvements made within the spirit and principle of this application should be included within the protection scope of this application.

[0111] To better illustrate this application, the content of this application will be further described below in conjunction with embodiments. The following are specific embodiments.

[0112] Embodiment 1

[0113] (1) Preparation of the fuming body.

[0114] The porous material sepiolite is adsorbed with the fuming agent glycerol; then the porous material adsorbed with the fuming agent is granulated; the granulated porous particle material sepiolite and an aqueous solution of sodium carboxymethylcellulose are mixed and extruded through a mold, where the dosage of sodium carboxymethylcellulose is 1 wt% of the porous particle material (the water in the aqueous solution of sodium carboxymethylcellulose is removed by heating during extrusion molding). A cylindrical fuming body is obtained.

[0115] During extrusion molding, grooves are formed on the side wall of the fuming body and channels are formed inside; specifically, 3 axially penetrating grooves are formed on the side wall, and the cross-sectional shape of the groove is trapezoidal.

[0116] The mass of glycerol contained in the fuming body is the second glycerol content in Table 1.

[0117] (2) Preparation of the aerosol generating device.

[0118] The aerosol matrix is formed of tobacco sheet and adsorbed with glycerol; the content of glycerol in the aerosol matrix is the first glycerol content in Table 1.

[0119] The filter body, the hollow device, the fuming body, and the aerosol matrix are sequentially arranged, and a wrapping material layer (wrapping paper) is used to wrap the outside of the sequentially connected filter body, hollow device, fuming body, and aerosol matrix to obtain the aerosol generating device.

[0120] Among them, in the smoke-generating body, the total volume ratio of each groove and pore channel is simply referred to as the pore ratio in Table 1; based on the total side area of the smoke-generating body, the area ratio of the region where the groove is located is the area ratio of the area not in contact with the coating material layer.

[0121] The area ratio of the region where the groove is located + the area ratio of the area in contact with the coating material layer = 100%.

[0122] The area ratio of the area in contact with the coating material layer is simply referred to as the contact area ratio in Table 1.

[0123] Examples 2 to 10

[0124] Examples 2 to 10 are basically the same as Example 1, except that at least one of the type of porous material, aerosol matrix, glycerol content in the smoke-generating body, pore ratio, and contact area ratio is different, as specifically shown in Table 1. Among them, the pore ratio and the contact area ratio can be adjusted by the number and size of the grooves.

[0125] Comparative Example 1

[0126] It is basically the same as Example 1, except that the above-mentioned smoke-generating body is not provided, and only contains a tobacco sheet aerosol generation matrix; at the same time, the total glycerol content is the total mass in the smoke-generating body and the aerosol generation matrix in Example 1.

[0127] Comparative Example 2

[0128] It is basically the same as Example 2, except that the above-mentioned smoke-generating body is not provided, and only contains a tobacco sheet aerosol generation matrix; at the same time, the total glycerol content is the total mass in the smoke-generating body and the aerosol generation matrix in Example 2.

[0129] Examples 11 to 20

[0130] Examples 11 to 20 are basically the same as Example 1, except that at least one of the type of porous material, aerosol matrix, glycerol content in the smoke-generating body, pore ratio, and contact area ratio is different, as specifically shown in Table 1. Among them, the pore ratio and the contact area ratio can be adjusted by the number and size of the grooves.

[0131] The aerosol generating devices (cigarettes) prepared in each example and comparative example were subjected to glycerol release amount, glycerol release rate, and cigarette appearance detection at different heating temperatures. The cigarette appearance detection was carried out by visual observation.

[0132] The process of detecting the glycerol release amount and glycerol release rate at different heating temperatures is as follows:

[0133] Use a linear smoking machine to suck and heat the heat-not-burn cigarette. The smoking parameters of the cigarette are as follows: suction curve: bell-shaped; suction volume: (35.0 ± 0.3) mL; suction duration: 2 s; suction interval: 30 s; each cigarette is smoked 7 times. Use a 44 mm Cambridge filter to trap the particulate matter in the aerosol of the heat-not-burn cigarette. Each filter traps the particulate matter of 5 cigarette samples.

[0134] Use the GC-TCD method. For the specific reference, see "Wang Kang, Liu Jun, Xiao Shaohong, et al. Simultaneous determination of the moisture in the aerosol of heat-not-burn cigarettes and the release amounts of nicotine, glycerol, 1,2-propanediol, triacetin and menthol by GC-TCD [J]. Tobacco Science & Technology, 2019, 52(3): 63-68." to test the released glycerol content.

[0135] Glycerol release rate = (mass of released glycerol) / (total mass of glycerol in the aerosol matrix + glycerol in the independent smoking body) × 100%.

[0136] Table 1

[0137]

[0138] It can be seen from Table 1 that:

[0139] 1. It can be seen from Comparative Example 1 and Examples 1-10, and it can be seen from Comparative Example 2 and Examples 11-20 that under the conditions of the same glycerol content and the same heating temperature, the glycerol release amount and release rate of the cigarettes with the above-mentioned smoking bodies are higher than those of the cigarettes without the above-mentioned smoking bodies.

[0140] 2. By comparing the results of Examples 1-10 and Examples 11-20 at different heating temperatures, it can be seen that increasing the heating temperature can increase the glycerol release amount and release rate.

[0141] 3. The cigarettes of the embodiments of the present application can achieve glycerol atomization at a lower temperature (below 190°C).

[0142] The technical features of the above-mentioned embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0143] The above-described embodiments merely represent several implementation manners of the present utility model. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several variations and improvements can still be made, and these all fall within the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims, and the description and drawings can be used to explain the content of the claims.

Claims

1. A smoke-generating body, characterized in that, The smoke generator includes a porous material matrix and a smoke agent, the smoke agent is adsorbed in the porous material matrix, a groove is provided on the side wall of the porous material matrix, and the groove extends from one end of the porous material matrix to the other end.

2. The smoke-generating body according to claim 1, characterized in that, Based on the total side wall area of the smoke generator, the area proportion of the region where the groove is located is from 1 / 5 to 4 / 5.

3. The smoke generating body according to claim 2, wherein, Based on the total side wall area of the smoke generator, the area proportion of the region where the groove is located is from 1 / 4 to 3 / 4.

4. The smoke-generating body according to claim 1, wherein, The cross-sectional shape of the groove is a sector, a polygon or an irregular shape.

5. The smoke-generating body according to claim 1, wherein The number of the grooves on the side wall of the smoke generator is 1 to 50.

6. The smoke generating body according to any one of claims 1 to 5, characterized in that, The porous material matrix is a cylindrical structure, and the groove is located on the side wall of the cylindrical structure.

7. The smoke-generating body according to claim 6, wherein, The length of the porous material matrix is 2 mm to 15 mm.

8. The smoke-generating body according to claim 6, characterized in that, Pore channels are provided inside the porous material matrix, and the pore channels extend from one end of the porous material matrix to the other end.

9. The smoke-generating body according to claim 8, wherein, The pore diameter of the pore channels is 1.0 mm to 3.0 mm.

10. The smoke-generating body according to claim 8, wherein Based on the volume of the cylindrical structure, the volume proportion of the groove and the pore channels is 5% to 40%.

11. The smoke-generating body according to claim 8, wherein The number of the pore channels is 1 to 10.

12. The smoke-generating body according to claim 8, characterized in that, The cross-sectional shape of the pore channels is a circle, an ellipse, a sector, a polygon or an irregular shape.

13. The smoke generator according to any one of claims 1 to 5, 7 to 12, characterized in that, The porous material matrix is an inorganic porous material matrix.

14. The smoke generator according to any one of claims 1 to 5 and 7 to 12, characterized in that, The porous material matrix is a porous particle material matrix.

15. An aerosol generating device, characterized in that, It includes a wrapping material layer, a filter body, a hollow device and the smoke generator according to any one of claims 1 to 14; the wrapping material layer wraps the outside of the filter body, the hollow device and the smoke generator which are connected in sequence; a channel is formed between the region where the groove is provided on the side wall of the smoke generator and the wrapping material layer.

16. An aerosol generating system, characterized in that, It includes the smoke generator according to any one of claims 1 to 14 or the aerosol generating device according to claim 15, and a heating appliance; The heating appliance is used to heat the smoke generator or the aerosol generating device.

17. The aerosol generating system according to claim 16, characterized in that, The heating appliance includes a heating component, a battery component, a control component and a housing. The battery component is used to supply power to the heating appliance, the control component is used to control the battery component, and the heating component, the battery component and the control component are accommodated in the housing.

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