Aerosol generating product and aerosol generating system

Abstract

According to the aerosol generating product and the aerosol generating system, the aerosol generating product comprises the medium section, the first functional section, the second functional section and the third functional section which are sequentially arranged in the first direction, one of the second functional section and the third functional section is a cooling section, the medium section is of an integrated structure, and the first functional section is of a hollow structure. At least one first air channel hole is formed in the medium section, and the first air channel hole penetrates through at least one end, in the first direction, of the medium section; the draw resistance of the first functional section is different from the draw resistance of the medium section. According to the aerosol generating product provided by the embodiment of the invention, the first functional section is arranged, and the draw resistance of the first functional section is different from that of the medium section, so that the draw resistance of the aerosol generating product can be kept in a proper range, and the use experience of a user is improved. In addition, the medium section is of an integrated structure, so that the density uniformity of the medium section is improved, and the stability of aerosol release and suction is improved.

Description

Technical Field

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

[0002] This section is intended to provide a background or context to the embodiments of the application that are recited in the claims. No description herein is admitted to be prior art by inclusion in this section.

[0003] Smoking articles include smoking articles that form aerosols by ignition and smoking articles that form aerosols by heating without burning. In a typical smoking article that heats without burning, it contains an aerosol-generating substrate that can evaporate when heated to generate an aerosol and a functional segment. The functional segment cooperates with the aerosol-generating substrate to achieve the inhalation of the aerosol. The aerosol-generating substrate is heated by an external heat source so that it is heated just enough to emit a fragrance. The aerosol-generating substrate does not burn, but instead releases the aerosol by loading an atomizer and heating it at high temperature to form smoke when used.

[0004] Among them, the inhalation resistance of the smoking product during the inhalation process is an important indicator of the smoking product. In the prior art, the inhalation resistance of the smoking product is too small or too large, which leads to a small amount of aerosol inhaled, reducing the user's experience. Summary of the invention

[0005] In view of this, the present application hopes to provide an aerosol generating product and an aerosol generating system with suitable inhalation resistance.

[0006] To achieve the above-mentioned object, an embodiment of the present application provides an aerosol generating product, comprising a medium segment, a first functional segment, a second functional segment and a third functional segment arranged in sequence along a first direction;

[0007] One of the second functional section and the third functional section is a temperature reduction section;

[0008] The medium segment is an integrated structure, and has at least one first airway hole inside the medium segment, and the first airway hole passes through at least one end of the medium segment along the first direction;

[0009] The suction resistance of the first functional section is different from the suction resistance of the medium section.

[0010] In one embodiment, the medium segment, the second functional segment, the third functional segment and the first functional segment are separable structures, and the first functional segment is an integrated structure.

[0011] In one embodiment, the first functional segment has at least one second airway hole inside, and the second airway hole passes through at least one end of the first functional segment along the first direction.

[0012] In one embodiment, on a plane perpendicular to the first direction of the aerosol generating article, the cross-sectional shape of the second airway hole is at least one of a circle, an ellipse, a racetrack, a strip, a polygon and a sector.

[0013] In one embodiment, in a plane perpendicular to the first direction of the aerosol generating article, the cross-sectional shape of the second airway hole is circular;

[0014] The cross-sectional area of ​​a single second airway hole is smaller than the cross-sectional area of ​​a single first airway hole, or the hydraulic diameter of a single second airway hole is smaller than the hydraulic diameter of a single first airway hole.

[0015] In one embodiment, in a plane perpendicular to the first direction of the aerosol generating article, the cross-sectional shape of the second airway hole is a long strip;

[0016] The cross-sectional area of ​​a single second airway hole is greater than the cross-sectional area of ​​a single first airway hole.

[0017] In one embodiment, an airway groove is formed on the circumferential outer surface of the first functional segment, and the airway groove passes through two opposite ends of the first functional segment along the first direction.

[0018] In one embodiment, the composition of the first functional segment is the same as the composition of the dielectric segment.

[0019] In one embodiment, the first functional section is in the shape of a screen.

[0020] In one embodiment, the first functional section is a folding structure or a pleated structure, and the folding structure or the pleated structure has an interlayer air channel extending along a first direction.

[0021] In one embodiment, the first functional segment is a tow-type structure.

[0022] In one embodiment, the interior of the aerosol-generating article is provided with at least one cavity.

[0023] In one embodiment, the medium segment and the first functional segment are spaced apart to define the cavity.

[0024] In one embodiment, the first functional segment and the second functional segment are spaced apart from each other to define the cavity.

[0025] In one embodiment, the second functional section is a cooling section, and a first channel passing through both ends of the cooling section along a first direction is provided inside the cooling section, and a center line of the first channel coincides with a central axis of the cooling section along the first direction; a second channel passing through both ends of the first functional section along the first direction is provided inside the first functional section, and a center line of the second channel coincides with a central axis of the first functional section along the first direction, and a cross-sectional area of ​​the second channel is greater than a cross-sectional area of ​​the first channel.

[0026] In one embodiment, the second functional section is a cooling section, and the third functional section is a filtering section; or, the second functional section is a filtering section, and the third functional section is a cooling section.

[0027] In one embodiment, the medium segment, the second functional segment, the third functional segment and the first functional segment are cylindrical and are coaxially arranged, and the first direction is the axial direction of the four.

[0028] An embodiment of the present application further provides an aerosol generating system, comprising an aerosol generating device and any of the aforementioned aerosol generating products, wherein the aerosol generating device comprises a heating element, and the heating element is used to heat the medium segment to generate an aerosol.

[0029] The embodiment of the present application provides an aerosol generating product, which includes a medium segment, a first functional segment, a second functional segment and a third functional segment arranged in sequence along a first direction. The medium segment generates an aerosol when heated, and one of the second functional segment and the third functional segment is a cooling segment, which is used to cool the aerosol to avoid the problem of "burning the mouth". The other of the second functional segment and the third functional segment can have the function of supporting and / or filtering and / or cooling. The embodiment of the present application sets a first functional segment, and the suction resistance of the first functional segment is different from the suction resistance of the medium segment, which is conducive to maintaining the suction resistance of the aerosol generating product within an appropriate range, that is, the suction resistance of the aerosol generating product can be made appropriate, which improves the user's use experience. In addition, the medium segment is an integrated structure, for example, the medium segment can be molded by extrusion, die casting or injection molding to improve the uniformity of the density of the medium segment and improve the stability of aerosol release and suction. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the structure of an aerosol generating product according to an embodiment of the present application;

[0031] Figure 2 for Figure 1 A cross-sectional view of an aerosol-generating article shown, wherein the dashed arrows indicate the direction of airflow in the aerosol-generating article;

[0032] Figure 3is a schematic cross-sectional view of an aerosol generating article in a second embodiment of the present application;

[0033] Figure 4 is a schematic cross-sectional view of an aerosol generating article in a third embodiment of the present application;

[0034] Figure 5 is a schematic cross-sectional view of an aerosol generating article in a fourth embodiment of the present application;

[0035] Figure 6 is a schematic cross-sectional view of an aerosol generating article in a fifth embodiment of the present application;

[0036] Figure 7 is a schematic cross-sectional view of an aerosol generating article in a sixth embodiment of the present application;

[0037] Figure 8 is a schematic cross-sectional view of an aerosol generating article in a seventh embodiment of the present application;

[0038] Fig. 9 is a schematic cross-sectional view of an aerosol generating article in an eighth embodiment of the present application;

[0039] Fig.10 is a schematic cross-sectional view of an aerosol generating article in a ninth embodiment of the present application;

[0040] Fig.11 is a schematic cross-sectional view of an aerosol generating article in the tenth embodiment of the present application;

[0041] Fig.12 for Figure 3 A schematic diagram of the structure of the first functional section shown in ;

[0042] Fig.13 for Figure 4 A schematic diagram of the structure of the first functional section shown in ;

[0043] Fig.14 for Fig. 9 Schematic diagram of the structure of the first functional segment shown in .

[0044] Description of Reference Numerals

[0045] 10. Medium segment; 10a. First airway hole; 20. First functional segment; 20a. Second airway hole; 20b. Second channel; 20c. Airway groove; 20d. Interlayer airway; 30. Second functional segment; 30a. First channel; 40. Third functional segment; 50. Wrapping layer; 100. Aerosol generating product; 100a. Cavity. 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 description of this application, the "first direction" orientation or position relationship is based on the attached Figure 1 and Figure 2 Regarding the orientation or positional relationship shown, it should be understood that these orientation terms are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0048] The present application provides an aerosol generating product. Figures 1 to 14 , including a medium segment 10, a first functional segment 20, a second functional segment 30 and a third functional segment 40 arranged in sequence along a first direction.

[0049] One of the second functional section 30 and the third functional section 40 is a cooling section for cooling the aerosol.

[0050] The other of the second functional segment 30 and the third functional segment 40 may have the function of supporting and / or filtering and / or cooling. The draw resistance of the first functional segment 20 is different from the draw resistance of the medium segment 10. Thus, the draw resistance of the aerosol generating article 100 may be kept within an appropriate range by controlling the draw resistance of the first functional segment 20 itself.

[0051] Specifically, see Figure 3 and Figure 4 The two ends of the second functional segment 30 along the first direction are in contact with the first functional segment 20 and the third functional segment 40 respectively. At this time, the second functional segment 30 can support the first functional segment 20 and the third functional segment 40 to increase the overall strength of the aerosol generating product. At the same time, the second functional segment 30 can also be solid acetate fiber or solid PET, which can perform directionally filtering on the aerosol to remove harmful components therein, and can also adjust the suction resistance to better prevent the aerosol generating product from causing suction voids due to too small suction resistance and affecting the suction experience. In addition, the aerosol generated by the medium segment 10 can reduce the temperature of the aerosol after passing through a certain length of the second functional segment 30. That is to say, in this embodiment, the second functional segment 30 simultaneously has the functions of supporting, cooling and adjusting the suction resistance.

[0052] See also Figure 2, the second functional section 30 is spaced apart from the first functional section 20. At this time, the second functional section 30 mainly functions to cool down and adjust the draw resistance. It can be understood that in other embodiments, the second functional section 30 can also be mainly used for supporting and adjusting the draw resistance, or the second functional section 30 can also be mainly used for filtering and adjusting the draw resistance, which is not limited in the present application.

[0053] It should be noted that when one of the second functional segment 30 and the third functional segment 40 is used to filter the aerosol, it can be understood that since the aerosol flows through the functional segment, the functional segment also has the function of further cooling the aerosol.

[0054] The aerosol-generating article 100 relies on the medium segment 10 to generate aerosol, and the first functional segment 20 , the second functional segment 30 and the third functional segment 40 are not used to generate aerosol.

[0055] It should be noted that the aerosol generating product 100 of the embodiment of the present application can be used for inhalation by ignition or by heating without burning. In the embodiment of the present application, the aerosol generating product 100 is used for inhalation by heating without burning as an example.

[0056] The aerosol-generating article 100 is intended for use with an aerosol-generating device.

[0057] The medium segment 10 is used to generate an aerosol when heated for inhalation by a user.

[0058] In the embodiment of the present application, the medium segment 10 is substantially cylindrical, which may be a cylindrical shape (i.e., a circular cross-sectional shape), a prism shape (i.e., a polygonal cross-sectional shape), an elliptical cylinder shape (i.e., an elliptical cross-sectional shape), etc., without limitation.

[0059] Exemplarily, the medium segment 10, the first functional segment 20, the second functional segment 30 and the third functional segment 40 are separable structures, and the four are not connected together by mechanical, physical structures or adhesives, but two of them may be in contact, that is, the medium segment 10, the first functional segment 20, the second functional segment 30 and the third functional segment 40 are a combined structure, thus, different medium segments 10, different first functional segments 20, different second functional segments 30 and different third functional segments 40 can be reasonably matched to meet the different suction needs of customers.

[0060] Exemplary, the medium section 10 is a particle combination, also referred to as a powder combination, a kind of reconstituted tobacco medium, for example, a reconstituted tobacco medium containing components such as smoke-generating agent, tobacco. The medium section 10 is an integrated structure, for example, an integrated structure can be formed by extrusion, injection molding or die-casting molding process. Wherein, extrusion molding refers to adding a raw material mixture into an extruder, and the material is pushed forward by the screw through the action between the extruder barrel and the screw, and is continuously made into a processing method of various cross-section products or semi-finished products by the mold of the extruder discharge port. The medium structure formed by extrusion molding is strip-shaped. In this way, after the medium section 10 is heated and sucked or stops being heated, it is an integrated medium, and it is not easy to disintegrate and fall, and the problem that the thin sheet, filament or scattered particle medium section 10 in the prior art appears, such as the problem of thin sheet loosening, filamentous component, particle component falling off, being difficult to clean, and the problem of uneven components.

[0061] The interior of the medium section 10 has at least one first airway hole 10a, see Figures 2 to 11 , the first air channel hole 10a passes through at least one end of the medium segment 10 along the first direction.

[0062] The inside of the medium segment 10 has at least one first air passage hole 10 a . The inside of the medium segment 10 may have one first air passage hole 10 a , or the inside of the medium segment 10 may have multiple first air passage holes 10 a .

[0063] It should be noted that the “multiple” mentioned in the embodiments of the present application refers to a number of two or more.

[0064] In some embodiments, the first air channel holes 10a pass through the same end of the medium segment 10 along the first direction, and the other end is closed.

[0065] In other embodiments, a portion of the first air passage holes 10a passes through one end of the medium segment 10 along the first direction, and another portion of the first air passage holes 10a passes through the other end of the medium segment 10 along the first direction.

[0066] In some other embodiments, please refer to Figures 2 to 11 Each first airway hole 10a passes through both ends of the medium segment 10 along the first direction, that is, the first airway hole 10a extends along the first direction of the medium segment 10, and the airflow can flow from one end of the medium segment 10 through the first airway hole 10a to the other end of the medium segment 10. Preferably, the first airway hole 10a is parallel to the central axis of the medium segment 10.

[0067] The hole wall of the first airway hole 10a constitutes the inner surface of the medium segment 10. The first airway hole 10a can increase the inner surface area of ​​the medium segment 10, facilitate heat transfer, and improve heating efficiency. In addition, the medium segment 10 generates aerosol after heating, and the aerosol is collected in the first airway hole 10a and transported to the suction end under the action of the suction negative pressure. The first airway hole 10a can reduce the suction resistance of the user and improve the user experience. It should be noted that the suction resistance is positively correlated with the flow resistance of the aerosol. The smaller the flow resistance of the aerosol in the medium segment 10, the smaller the suction resistance experienced by the user. The greater the flow resistance of the aerosol in the medium segment 10, the greater the suction resistance experienced by the user.

[0068] It should be noted that the shape of the first airway hole 10a is not limited here. For example, on a plane perpendicular to the first direction of the medium segment 10, the cross-sectional shape of the first airway hole 10a includes but is not limited to a circle (such as Figures 2 to 11 ), elliptical, racetrack or polygonal, wherein the polygon includes regular or irregular polygons.

[0069] Among them, the runway shape refers to: a shape similar to an athletics track, composed of two semicircles and two parallel straight edges alternately connected.

[0070] The cross-sectional shape of the first airway hole 10 a refers to the cross-sectional shape of the first airway hole 10 a cut along a plane perpendicular to the first direction of the medium segment 10 .

[0071] In addition, the shapes of the cross sections of the first airway holes 10a can be exactly the same, or the shapes of the cross sections of at least two of the first airway holes 10a can be different. For example, the shape of the cross section of at least one of the first airway holes 10a can be circular, and the shape of the cross section of at least one of the first airway holes 10a can be polygonal.

[0072] For example, see Figures 1 to 11 The aerosol generating article 100 includes a wrapping layer 50 , which wraps around the circumferential surfaces of the medium segment 10 , the first functional segment 20 , the second functional segment 30 and the third functional segment 40 .

[0073] The wrapping layer 50 has a certain hardness and can provide a certain degree of protection for the medium segment 10, thereby reducing the surface area of ​​the medium segment 10 directly exposed to the outside world, thereby reducing the probability of the medium segment 10 coming into contact with the air and becoming damp and deteriorating. At the same time, it also reduces the probability of the medium segment 10 coming into contact with other components in the aerosol generating device and causing contamination.

[0074] It should be noted that the medium segment 10 and the wrapping layer 50 can be an integrated structure. That is, the medium segment 10 and the wrapping layer 50 are different parts of an integral structure. In this way, on the one hand, the relative position of the medium segment 10 and the wrapping layer 50 is fixed, which can reduce the probability of the medium segment 10 and the wrapping layer 50 being separated due to temperature changes, vibrations and other factors during the use of the aerosol generating product 100; on the other hand, the medium segment 10 and the wrapping layer 50 can be prepared simultaneously, thereby reducing the manufacturing steps and improving the production efficiency.

[0075] For example, the integral structure of the media portion and the wrap layer 50 is formed by a co-extrusion process.

[0076] Of course, the medium segment 10 and the wrapping layer 50 may also be a split structure.

[0077] The embodiment of the present application also provides an aerosol generating system, including an aerosol generating device and the aerosol generating product provided by the above embodiment, wherein the aerosol generating device includes a heating element (not shown) for heating the medium segment 10 to generate an aerosol.

[0078] Specifically, the aerosol generating device includes a shell and a power supply assembly arranged in the shell. The shell has a containing chamber. The power output part of the power supply assembly is arranged in the containing chamber or around the side wall of the containing chamber. When the aerosol generating product 100 is inserted into the containing chamber at a position corresponding to the first direction range where the medium segment 10 is located, the power output part transmits power to the heating assembly in a contact or non-contact manner. The heating assembly receives energy from the outside and generates heat, thereby heating the medium segment 10 and generating an aerosol.

[0079] In the embodiment of the present application, the first direction does not specifically refer to the direction in which the outer contour of the medium segment 10 is the longest. Specifically, the direction in which the aerosol generating article 100 is inserted into the containing chamber and the direction in which the aerosol generating article 100 is taken out of the containing chamber are both parallel to the first direction. The length of the medium segment 10 along the first direction may be longer, shorter, or the same as the length in other directions.

[0080] For example, when the appearance of the medium segment 10 is cylindrical, the first direction is the axial direction of the medium segment 10. It should be noted that even when the axial length of the medium segment 10 is less than its diameter, the first direction of the medium segment 10 is still the axial direction. For another example, when the appearance of the medium segment 10 is a rectangular parallelepiped, the first direction is still the direction defined above, that is, the direction in which the aerosol generating article 100 is taken out of the containing chamber. The first direction of the medium segment 10 can be any direction of the length, width, and height of the rectangular parallelepiped.

[0081] The embodiment of the present application provides an aerosol generating product, the aerosol generating product 100 comprises a medium segment 10, a first functional segment 20, a second functional segment 30 and a third functional segment 40 arranged in sequence along a first direction, the medium segment 10 generates an aerosol when heated, one of the second functional segment 30 and the third functional segment 40 is a cooling segment, which is used to cool the aerosol to avoid the problem of "burning the mouth", and the other of the second functional segment 30 and the third functional segment 40 can have the function of supporting and / or filtering and / or cooling. The embodiment of the present application sets the first functional segment 20, and the suction resistance of the first functional segment 20 is different from the suction resistance of the medium segment 10, which is conducive to achieving the suction resistance of the aerosol generating product 100 to be kept within an appropriate range, that is, the suction resistance of the aerosol generating product 100 can be appropriate, which improves the user's use experience. In addition, the medium segment 10 is an integrated structure, for example, the medium segment 10 can be formed by extrusion, die casting or injection molding process to improve the uniformity of the density of the medium segment 10 and improve the stability of aerosol release and suction.

[0082] Exemplarily, the medium segment 10, the first functional segment 20, the second functional segment 30 and the third functional segment 40 are separable structures. Therefore, different medium segments 10, different first functional segments 20, different second functional segments 30 and different third functional segments 40 can be reasonably matched to meet the needs of customers for different suction resistances and temperatures, further improving the user experience.

[0083] The specific components of the medium segment 10 are not limited herein. For example, in one embodiment, the medium segment 10 may include plant components, auxiliary components, smoke-generating agent components, adhesive components, and flavor components.

[0084] The plant component is used to generate an aerosol when heated. The auxiliary component is used to provide a skeleton support for the plant component. The smoke-generating agent component is used to generate smoke when heated. The adhesive component is used to bond the various raw material components. The flavor component is used to provide a characteristic aroma. In this way, the plant component and the smoke-generating agent component can ensure the amount of aerosol generated, while the flavor component can enhance the release of aroma during the suction process and enhance the user experience. The auxiliary component can not only improve the fluidity of the mixed material, but also make the medium segment 10 porous to facilitate the extraction and flow of the aerosol. The adhesive component ensures that the plant component and the auxiliary component etc. constitute a stable mixture to avoid a loose structure.

[0085] Exemplarily, the plant component can be one or more combinations of powders formed after crushing tobacco raw materials, tobacco leaf fragments, tobacco stems, tobacco dust, and flavor plants. Plant components are the core source of flavor. Endogenous substances in plant components can produce physiological satisfaction for users. Endogenous substances such as alkaloids enter the human blood and promote the pituitary gland to produce dopamine, thereby obtaining physiological satisfaction.

[0086] Exemplarily, the auxiliary agent component 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, talcum powder, and diatomaceous earth. The inorganic filler can provide a skeleton support for the plant component, and the inorganic filler also has micropores, which can increase the porosity of the medium section 10, thereby increasing the aerosol release rate. 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 component powder, reduce the friction between the plant component powders, make the overall density of the plant component powder distribution more uniform, and can also reduce the pressure required for the extrusion molding process and reduce the wear of the die. The emulsifier includes one or more combinations of polyglycerol fatty acid esters, 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.

[0087] Exemplarily, the smoke-generating agent component 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) in one or more combinations.

[0088] Exemplarily, the adhesive component is in close contact with the interface of the component raw materials by wetting, generating intermolecular attraction, thereby playing a role in bonding the component raw materials, such as powders, liquids, etc. The adhesive component 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 medium segment 10 and is harmless to the human body.

[0089] Exemplarily, the flavor component is used to provide a characteristic aroma, such as hay aroma, roasted sweet aroma, solid or liquid substances of nicotine. The flavor component may include one or more combinations of tobacco or other plants, flavor plant extracts, extracts, essential oils, and absolute oils; the flavor component may include monomeric flavor substances, such as one or more combinations of megastigmatriene, neophytadiene, geraniol, nerol, etc.

[0090] It should be noted that the medium segment 10 is formed with micropores, and the micropores are connected to each other and form a micro-airway connected to the first airway hole 10a. In other words, the micro-airway is connected to the first airway hole 10a, and since the micro-airway is formed by the connection between the micropores, the micropores are connected to the channel 10a. In addition, it can be understood that the connection between the micropores can be that some of the micropores are connected and some of the micropores are not connected; or all the micropores can be connected to each other. For example, in an embodiment in which the medium segment 10 is a particle combination, the gaps between the particles constitute the micropores. The size of the micropores is determined by the gaps between the particles.

[0091] The first airway hole 10a and the micro-airway can increase the surface area of ​​the medium segment 10, facilitate heat transfer, and improve heating efficiency. The medium of the medium segment 10 releases aerosols when heated, and is collected to the first airway hole 10a through the gaps between the wall materials or the micro-airway. The aerosols released by the atomized medium exposed to the first airway hole 10a (i.e., the atomized medium located on the inner wall surface of the first airway hole 10a) can be directly released to the first airway hole 10a. The aerosols between adjacent first airway holes 10a can also circulate with each other through the micro-airway and be transported to the suction end under the action of the suction negative pressure.

[0092] It should be noted that the first airway holes 10a are holes in a macroscopic sense, and the micropores are holes in a microscopic sense. The cross-sectional area of ​​the first airway holes 10a is much larger than that of the micropores.

[0093] Exemplarily, the cross-sectional area of ​​the first airway hole 10a is at least 20 times the cross-sectional area of ​​the micropore. When the size of the micropore remains roughly unchanged, when it is less than 20 times, the size of the first airway hole 10a will be too small, and the aerosol will not be easily released from the inner wall of the first airway hole 10a into the first airway hole 10a, and it will cause the user's suction resistance to be large, and the user's suction experience will be reduced. Therefore, in this embodiment, when the cross-sectional area of ​​the airway hole 10a is greater than or equal to 20 times the cross-sectional area of ​​the micropore, the rate of aerosol release from the inner wall of the airway hole 10a can be guaranteed, and the suction resistance can also be reduced, thereby improving the user's suction experience.

[0094] In some embodiments, the cross-sectional area of ​​the first airway hole 10a is 20 to 60,000 times the cross-sectional area of ​​the micropore. If the cross-sectional area of ​​the first airway hole 10a exceeds 60,000 times the cross-sectional area of ​​the micropore, the area of ​​the first airway hole 10a will be too large, the overall quality of the generated aerosol will decrease, the utilization rate of the aerosol generation substrate will be low, and the heating rate will be large, and the aerosol will be easily released from the micropore into the environment.

[0095] Exemplarily, the cross-sectional area of ​​the first airway hole 10a is 100 to 40,000 times the cross-sectional area of ​​the micropore.

[0096] In some embodiments, the aperture of the first airway hole 10a ranges from 0.05 mm (millimeter) to 6 mm. When the diameter of the first airway hole 10a is less than 0.05 mm, the processing cost of the medium segment 10 is high and it is easy to have problems such as large suction resistance and low medium utilization. When the diameter of the first airway hole 10a is greater than 6 mm, the cross-sectional area is large, the flow rate of the airflow is smaller under the same volume in the suction state, and the aerosol is prone to deposition, resulting in low aerosol utilization.

[0097] The specific value of the aperture of the first airway hole 10a is not limited, for example, 0.05mm, 0.1mm, 0.5mm, 1mm, 2mm, 3mm, 5mm, 6mm, etc.

[0098] It should be noted that the aperture of the first airway hole 10a refers to its equivalent diameter.

[0099] The equivalent diameter refers to the diameter of a circle with the same cross-sectional area as the object being measured.

[0100] The first airway hole 10a and the micro-airway can increase the surface area of ​​the medium segment 10, facilitate heat transfer, and improve heating efficiency. The medium of the medium segment 10 releases aerosols when heated, and is collected to the airway hole 10a through the gaps between the wall materials or the micro-airway. The aerosols released by the atomized medium exposed to the airway hole 10a (i.e., the atomized medium located on the inner wall surface of the first airway hole 10a) can be directly released to the first airway hole 10a. The aerosols between adjacent first airway holes 10a can also circulate with each other through the micro-airway and be transported to the suction end under the action of the suction negative pressure.

[0101] It should be noted that one of the second functional section 30 and the third functional section 40 is a cooling section, and the other of the second functional section 30 and the third functional section 40 can be a cooling section, a supporting section or a filtering section. The cooling section has a cooling function, the supporting section has a supporting function, and the filtering section has a filtering function.

[0102] Exemplarily, in some embodiments, the second functional section 30 is a filtering section, and the third functional section 40 is a cooling section.

[0103] It can be understood that since the aerosol flows through the first functional section 20 and the filter section, the first functional section 20 and the filter section can play a preliminary cooling function on the aerosol.

[0104] For other implementations, see Figures 2 to 11 The second functional section 30 is a cooling section, and the third functional section 40 is a filtering section. In the embodiment of the present application, the second functional section 30 is a cooling section, and the third functional section 40 is a filtering section.

[0105] That is, the aerosol generated by the heating medium segment 10 first flows through the first functional segment 20, then flows through the cooling segment for cooling, and then flows through the filtering segment after cooling, and the filtering segment can filter out large particles and undesirable impurities in the aerosol. That is, the aerosol generated by the heating medium segment 10 passes through the first functional segment 20, the cooling segment, and the filtering segment in sequence for suction resistance adjustment, cooling, and filtering before being inhaled by the user.

[0106] For example, in some embodiments, please refer to Figures 2 to 6 , the first functional section 20 can be an integrated structure. In one embodiment, the first functional section 20 of the integrated structure manufactured by the extrusion molding process has the function of adjusting the suction resistance, and also has the function of temperature resistance and preventing thermal collapse. In addition, according to the product style characteristics, flavors can be loaded to increase the richness of the aerosol. Among them, extrusion molding refers to a processing method in which the raw material mixture constituting the first functional section 20 is added to the extruder, and the material mixture is pushed forward by the screw through the action between the extruder barrel and the screw, and continuously passes through the mold of the extruder outlet to form various cross-section products or semi-finished products.

[0107] In other embodiments, the first functional section 20 may also be an integral structure formed by injection molding, die casting or other processes.

[0108] For example, in some embodiments, the composition of the first functional segment 20 is the same as that of the medium segment 10. In this way, during use, the first functional segment 20 will not bring bad smells and avoid affecting the taste of the aerosol. In addition, the composition of the first functional segment 20 is the same as that of the medium segment 10, which is more conducive to the first functional segment 20 and the medium segment 10 being manufactured by the same manufacturing process and raw materials, thereby improving production efficiency.

[0109] Of course, in other embodiments, the composition of the first functional segment 20 is different from that of the medium segment 10. The first functional segment 20 can be made of different materials such as plant materials, polysaccharides, silica gel, resin, etc.

[0110] The first functional section 20 has at least one second airway hole 20a inside. Figure 2 , Figure 3 , Figure 5 and Figure 6 The second airway hole 20a passes through at least one end of the first functional segment 20 along the first direction.

[0111] The first functional segment 20 has at least one second airway hole 20 a therein, and the first functional segment 20 may have one second airway hole 20 a therein, or the first functional segment 20 may have multiple second airway holes 20 a therein.

[0112] In some embodiments, the second airway holes 20a pass through the same end of the first functional section 20 along the first direction, and the other end is closed.

[0113] In other embodiments, a portion of the second airway holes 20a passes through one end of the first functional segment 20 along the first direction, and another portion of the second airway holes 20a passes through the other end of the first functional segment 20 along the first direction.

[0114] In some other embodiments, please refer to Figure 2 , Figure 3 , Figure 5 and Figure 6 Each second airway hole 20a passes through both ends of the first functional segment 20 along the first direction, that is, the second airway hole 20a extends along the first direction of the first functional segment 20, and the airflow can flow from one end of the first functional segment 20 through the second airway hole 20a to the other end of the first functional segment 20. Preferably, the second airway hole 20a is parallel to the central axis of the first functional segment 20.

[0115] It should be noted that the inhalation resistance is positively correlated with the flow resistance of the aerosol. The smaller the flow resistance of the aerosol in the first functional section 20, the smaller the inhalation resistance experienced by the user. The greater the flow resistance of the aerosol in the first functional section 20, the greater the inhalation resistance experienced by the user.

[0116] The first functional segment 20 adjusts the suction resistance by setting the second airway holes 20a and controlling the design parameters of the second airway holes 20a, for example, by controlling the number of the second airway holes 20a of the first functional segment 20, the cross-sectional area (hydraulic diameter) of the second airway holes 20a, the cross-sectional area of ​​the first functional segment 20 and other parameters.

[0117] When the first functional section 20 is provided with a plurality of second airway holes 20a, the aerosol can exchange heat with the hole wall of the second airway hole 20a when flowing through the second airway hole 20a, and the temperature of the aerosol can be effectively reduced by using multi-airway heat exchange.

[0118] It should be noted that the shape of the second airway hole 20a is not limited here. For example, on a plane perpendicular to the first direction of the first functional section 20, the cross-sectional shape of the second airway hole 20a includes but is not limited to a circle (such as Figure 2 , Figure 5 and Figure 6 ), oval, track, long strip (such as Figure 3 ), polygons and sectors, wherein the polygons include regular or irregular polygons.

[0119] The cross-sectional shape of the second airway hole 20 a refers to the cross-sectional shape of the second airway hole 20 a cut along a plane perpendicular to the first direction of the first functional section 20 .

[0120] In addition, the shapes of the cross sections of the second airway holes 20a can be exactly the same, or the shapes of the cross sections of at least two of the second airway holes 20a can be different. For example, the shape of the cross section of at least one of the second airway holes 20a can be circular, and the shape of the cross section of at least one of the second airway holes 20a can be polygonal.

[0121] Exemplarily, on a plane perpendicular to the first direction of the aerosol generating article 100, the sum of the cross-sectional areas of all the second airway holes 20a is smaller than the sum of the cross-sectional areas of all the first airway holes 10a, that is, the porosity of the first functional segment 20 is smaller than the porosity of the medium segment 10, so that the draw resistance of the first functional segment 20 is greater than the draw resistance of the medium segment 10. In other words, the draw resistance of the aerosol generating article 100 can be increased by the first functional segment 20, which is conducive to maintaining the draw resistance of the aerosol generating article 100 within an appropriate range.

[0122] In some implementations, see Figure 2 The cross-sectional shape of the second airway hole 20a is circular. When the number of the second airway holes 20a is greater than the number of the first airway holes 10a, the cross-sectional area of ​​a single second airway hole 20a is smaller than the cross-sectional area of ​​a single first airway hole 10a. The second airway holes 20a with a large number and small cross-sectional areas are more conducive to adjusting the inhalation resistance of the aerosol generating product 100.

[0123] When the cross-sectional shape of the second airway hole 20a is circular, the cross-sectional area of ​​a single second airway hole 20a is smaller than the cross-sectional area of ​​a single first airway hole 10a, that is, the hydraulic diameter of a single second airway hole 20a is smaller than the hydraulic diameter of a single first airway hole 10a.

[0124] In the embodiment of the present application, the hydraulic diameter refers to the ratio of four times the flow cross-sectional area to the circumference.

[0125] In other embodiments, the cross-sectional shape of the second airway hole 20a can also be elliptical or polygonal. When the number of second airway holes 20a is greater than or equal to the number of first airway holes 10a, the cross-sectional area of ​​a single second airway hole 20a is smaller than the cross-sectional area of ​​a single first airway hole 10a.

[0126] In some other embodiments, please refer to Figure 3 and Fig.12 , on a plane perpendicular to the first direction of the aerosol generating product 100, the cross-sectional shape of the second airway hole 20a is a long strip, and the cross-sectional area of ​​a single second airway hole 20a is larger than the cross-sectional area of ​​a single first airway hole 10a. In this way, it is beneficial to the flow of aerosol and improves the situation where the flow of aerosol is hindered when the second airway hole 20a is misaligned with the first airway hole 10a. At the same time, it is beneficial to adjust the inhalation resistance. For example, the inhalation resistance can be increased by reducing the length of the short side of the long strip second airway hole 20a, and the inhalation resistance can be reduced by increasing the length of the short side of the long strip second airway hole 20a. Of course, the inhalation resistance can also be increased by reducing the length of the long side of the long strip second airway hole 20a, and the inhalation resistance can be reduced by increasing the length of the long side of the long strip second airway hole 20a.

[0127] Of course, the cross-sectional shape of the second airway hole 20a may also be a racetrack shape, and the cross-sectional area of ​​a single second airway hole 20a is greater than the cross-sectional area of ​​a single first airway hole 10a.

[0128] For example, see Figure 4 and Fig.13 The first functional segment 20 is provided with an airway groove 20c on its circumferential outer surface, and the airway groove 20c passes through two opposite ends of the first functional segment 20 along the first direction. The provision of the airway groove 20c can increase the contact area between the aerosol and the first functional segment 20, reduce the flow rate of the aerosol, and is more conducive to reducing the temperature of the aerosol.

[0129] It should be noted that the number of the airway grooves 20c is not limited, that is, one airway groove 20c or multiple airway grooves 20c may be provided. When the first functional segment 20 is provided with multiple airway grooves 20c, each airway groove 20c is provided at intervals on the circumferential outer surface of the first functional segment 20.

[0130] For example, in some other implementations, please refer to Figure 7 and Figure 8 , the first functional section 20 is in a mesh shape. The mesh-shaped first functional section 20, that is, the first functional section 20 has a smaller size along the first direction, and a plurality of second airway holes 20a are formed thereon and pass through along the first direction. In this way, on the basis of adjusting the inhalation resistance of the aerosol generating article 100, the size of the first functional section 20 along the first direction can be effectively reduced, thereby facilitating the reduction of the overall size of the aerosol generating article 100 and making the structure more compact.

[0131] The specific method of forming the mesh-like first functional section 20 is not limited, for example, it is formed by interweaving a plurality of crisscrossing filamentary structures, and the interlaced filamentary structures are surrounded to form the second airway hole 20a;

[0132] For example, see Figure 8 The mesh-shaped first functional section 20 is in the shape of a thin plate, and the second airway hole 20 a passes through the first functional section 20 along the thickness direction of the first functional section 20 .

[0133] For other implementations, see Fig. 9 When the mesh-shaped first functional section 20 is in the shape of a thin plate, a flange may be formed on the edge of the first functional section 20, and the first functional section 20 abuts against the medium section 10 through the flange, or abuts against the second functional section 30 through the flange.

[0134] The specific material of the mesh-shaped first functional segment 20 is not limited. For example, the material can be a metal mesh, a paper tube covered with high-permeability paper / film, etc., so that the first functional segment 20 has a certain temperature resistance. A plurality of second airway holes 20a are arranged in the first functional segment 20. The aperture of the second airway hole 20a is smaller than the aperture of the first airway hole 10a, so that the first functional segment 20 has the function of adjusting the suction resistance of the aerosol generating product 100. At the same time, the aerosol can collide and exchange heat with the first functional segment 20, thereby having a cooling and / or filtering effect on the aerosol.

[0135] For example, see Fig. 9 and Fig.14 The first functional section 20 is a folding structure or a pleated structure, and the folding structure or the pleated structure has an interlayer air channel 20d extending along the first direction. In this way, on the basis of adjusting the inhalation resistance of the aerosol generating product 100, the flow path of the aerosol and the contact area with the first functional section 20 can be lengthened, thereby having the function of initially cooling the aerosol. In addition, the first functional section 20 of the folding structure or the pleated structure also has a supporting and filtering function.

[0136] It should be noted that the specific material of the first functional section 20 of the foldable structure or the pleated structure is not limited here. For example, polylactic acid (PLA), paper, etc. can be selected and gathered to form a shape. By controlling the porosity, the suction resistance of the aerosol generating product 100 can be adjusted.

[0137] In addition, the first functional section 20 can be supported by a phase change material, which absorbs heat by phase change to enhance the effect of lowering the aerosol temperature. The phase change material is, for example, polylactic acid (PLA), which can phase change, melt, and absorb heat when a 120°C steam flow passes through.

[0138] For example, see Fig.10 and Fig.11 , the first functional segment 20 is a tow-type structure. In some embodiments, please refer to Fig.10The tow-type structure is, for example, a solid acetate fiber structure, and airflow pores are formed by the gaps between the tows of the solid acetate fiber structure. The aerosol generated by the medium segment 10 can pass through the airflow pores and flow to the second functional segment 30. The size of the airflow pores is smaller than the size of the first airway hole 10a, and has the function of adjusting the suction resistance.

[0139] In addition, when the aerosol passes through the airflow pores, the filament-type structure has a large surface area, which can filter the aerosol, thereby filtering the impurities contained in the aerosol, improving the user experience. At the same time, the resistance of airflow suction can be adjusted through the filament-type structure, and the filament-type structure can prevent the condensate formed after the aerosol condenses from flowing out of the aerosol generating product 100 and causing adverse effects on other devices in the aerosol generating device.

[0140] It should be noted that the air flow pores formed in the filament bundle structure can be pores in a macroscopic sense; they can also be pores in a microscopic sense, that is, they cannot be directly identified by the naked eye.

[0141] For example, see Figure 2 , Figures 5 to 8 At least one cavity 100a is provided inside the aerosol generating article 100. It should be noted that the number of cavities 100a is not limited here, that is, the number of cavities 100a can be one or more.

[0142] It should be noted that the specific position and formation method of the cavity 100a are not limited herein. For example, it can be formed between any two of the dielectric segment 10, the first functional segment 20, the second functional segment 30 and the third functional segment 40, or it can be formed at the end of the dielectric segment 10 away from the first functional segment 20, or it can be formed at the end of the third functional segment 40 away from the second functional segment 30.

[0143] By arranging the combined structure of the cavities 100a at different positions, the flow path of the aerosol can be increased, the airflow channel can be enlarged, and by utilizing technical principles such as heat exchange and combining the cavity 100a structure as needed, beneficial effects can be achieved in improving aerosol formation, caching and cooling.

[0144] For example, in some implementations, see Figure 5 , Figure 7 and Figure 8, the medium segment 10 and the first functional segment 20 are spaced apart to define a cavity 100a. That is, the medium segment 10 and the first functional segment 20 are spaced apart, and the cavity 100a is formed by the wrapping layer 50 wrapped around the periphery of the medium segment 10 and the first functional segment 20. It can be understood that by forming the cavity 100a between the medium segment 10 and the first functional segment 20, the aerosol generated by heating the medium segment 10 can flow into the cavity 100a, and the setting of the cavity 100a can buffer the aerosol generated by the medium segment 10, that is, the cavity 100a has the function of buffering and converging high-temperature aerosol, which can be beneficial to the extraction of aerosol and improve the utilization rate of the medium segment 10. In addition, the setting of the cavity 100a can increase the contact area between the airflow flowing out of the medium segment 10 and the aerosol generating product 100, thereby achieving a better cooling effect.

[0145] For example, in some other embodiments, please refer to Figure 2 , the first functional segment 20 and the second functional segment 30 are spaced apart to define a cavity 100a. That is, the first functional segment 20 and the second functional segment 30 are spaced apart, and the cavity 100a is formed by the wrapping layer 50 wrapped around the first functional segment 20 and the second functional segment 30. It can be understood that by forming the cavity 100a between the first functional segment 20 and the second functional segment 30, the aerosol generated by the heating of the medium segment 10 can flow to the first functional segment 20, and then flow to the cavity 100a for buffering. Therefore, in the process of transporting the aerosol, the flow path of the aerosol is increased, thereby having a rapid cooling effect. At the same time, the setting of the cavity 100a can also buffer the aerosol generated by the medium segment 10.

[0146] See also Figures 2 to 9 The second functional section 30 is a cooling section, and a first channel 30a passing through both ends of the cooling section along the first direction is arranged inside the cooling section. The center line of the first channel 30a coincides or roughly coincides with the central axis of the cooling section along the first direction.

[0147] Specifically, the cooling section can be, for example, one of a hollow paper tube, a cellulose acetate tube or an aluminum foil tube. That is to say, a first channel 30a with a larger aperture is provided inside the cooling section. The first channel 30a passes through both ends of the cooling section along the first direction. The aerosol generated by the medium section 10 can flow through the first functional section 20 and then flow into the first channel 30a for cooling, which is beneficial for the aerosol to gather toward the center and be sucked, and the aerosol has better agglomeration.

[0148] That is, the first functional section 20 and the cooling section are spaced apart to define a cavity 100a, and a high-speed airflow enters the first channel 30a of the cooling section from the cavity 100a to form a Venturi effect (the Venturi effect refers to the phenomenon that the flow velocity of a fluid increases when the fluid passes through a reduced flow cross section, and the flow velocity is inversely proportional to the flow cross section), and the aerosol can pass through the first channel 30a more quickly, thereby extracting the aerosol more quickly. The cross-sectional dimensions of the first channel 30a and the cavity 100a are relatively large, so the cooling section has a large specific surface area, which can achieve rapid cooling of the aerosol.

[0149] It should be noted that in some embodiments, please refer to Figure 6 A cavity 100a is provided between the medium segment 10 and the first functional segment 20, and between the first functional segment 20 and the second functional segment 30. In this embodiment, when the high-temperature aerosol flows through each cavity 100a, buffer diffusion and throttling and pressure reduction are formed, which has the functions of segmented throttling and enhancing the effect of reducing the temperature of the aerosol, and is conducive to the rapid extraction of the aerosol.

[0150] For example, see Figure 4 and Fig.11 The first functional segment 20 is provided with a second channel 20b passing through both ends of the first functional segment 20 along the first direction, and the center line of the second channel 20b coincides or substantially coincides with the center axis of the first functional segment 20 along the first direction. The second channel 20b is provided to facilitate the aerosol to gather toward the center and be sucked, and the aerosol has better agglomeration.

[0151] In some implementations, see Figure 4 The first functional section 20 is an integrated structure. The first functional section 20 can be provided with a second channel 20b, and no second airway hole 20a is provided. However, an airway groove 20c can be provided. Of course, the first functional section 20 can be provided with a second airway hole 20a while providing the second channel 20b. The second airway hole 20a is provided on the peripheral side of the second channel 20b, and the cross-sectional area of ​​the second channel 20b is greater than the cross-sectional area of ​​the second airway hole 20a.

[0152] For other implementations, see Fig.11 The first functional section 20 is a tow type structure, and the tow type structure is provided with a second channel 20b.

[0153] The cross-sectional area of ​​the second channel 20b is greater than that of the first channel 30a. Therefore, the high-speed airflow enters the first channel 30a from the second channel 20b to form a Venturi effect, which is more conducive to cooling the airflow.

[0154] For example, the filter segment may be composed of acetate fiber, PET (polyethylene terephthalate), polysaccharide, propylene fiber, etc. The filter segment can filter harmful components (carbon monoxide, tar, etc.) in the aerosol, and can adjust the draw resistance of the aerosol generating article 100 together with the first functional segment 20 so that the draw resistance meets the design requirements.

[0155] For example, the cooling section may be one of a hollow paper tube, a hollow acetate fiber or a corrugated paper tube. The cooling section is mainly used to reduce the temperature of the aerosol.

[0156] Exemplarily, the medium segment 10, the first functional segment 20, the second functional segment 30 and the third functional segment 40 are cylindrical and coaxially arranged, and the first direction is the axial direction of the four. By setting the medium segment 10, the first functional segment 20, the second functional segment 30 and the third functional segment 40 to be cylindrical and arranging them in sequence along the axial direction of the four, the structure of the aerosol generating article 100 can be made more compact, thereby improving the user's use experience.

[0157] Ten specific embodiments are briefly introduced below with reference to the accompanying drawings.

[0158] First embodiment

[0159] See also Figure 2 In this embodiment, the aerosol generating product 100 includes a medium segment 10, a first functional segment 20, a second functional segment 30 and a third functional segment 40 arranged in sequence along a first direction. The medium segment 10, the first functional segment 20, the second functional segment 30 and the third functional segment 40 are separable structures, that is, the aerosol generating product 100 is a four-segment combination structure composed of the medium segment 10, the first functional segment 20, the second functional segment 30 and the third functional segment 40 combined in sequence.

[0160] The second functional section 30 is a cooling section, and the third functional section 40 is a filtering section. The cooling section is hollow acetate fiber, which has cooling and filtering functions. The filtering section is solid acetate fiber, which mainly has filtering functions.

[0161] See also Figure 2 The medium segment 10 is an integrated structure, for example, the integrated structure can be formed by extrusion, injection molding or die casting.

[0162] The first functional section 20 can be an integral structure formed by extrusion. The integral structure of the first functional section 20 manufactured by the extrusion molding process has the functions of adjusting the suction resistance, temperature resistance, and preventing thermal collapse. In addition, it can also be loaded with fragrances according to the product style characteristics to increase the richness of the aerosol.

[0163] The medium segment 10 has at least one first airway hole 10a disposed inside, and the first airway hole 10a passes through at least one end of the medium segment 10 along the first direction. The first functional segment 20 has at least one second airway hole 20a disposed inside, and the second airway hole 20a passes through at least one end of the first functional segment 20 along the first direction.

[0164] On a plane perpendicular to the first direction of the aerosol generating article 100, the cross-sectional shape of the second airway hole 20a is circular, and when the number of the second airway holes 20a is greater than or equal to the number of the first airway holes 10a, the cross-sectional area of ​​a single second airway hole 20a is smaller than the cross-sectional area of ​​the first airway hole 10a. A large number of second airway holes 20a with a small cross-sectional area are more conducive to adjusting the draw resistance of the aerosol generating article 100.

[0165] Among them, the medium segment 10 is an integrated structure containing a macroscopic and / or microscopic porous structure prepared by processes such as extrusion, injection molding or die-casting. The suction resistance of the medium segment 10 mainly depends on its own porosity, that is, the pore size and number of the first airway holes 10a. The upper end adopts a ternary functional segment structure design consisting of a first functional segment 20, a cooling segment and a filtering segment. While ensuring cooling and effective extraction of smoke, the suction resistance adjustment function is taken into account, so that the suction resistance of the aerosol generating product 100 meets the design requirements.

[0166] The aerosol flow mode in this embodiment is specifically described. The medium segment 10 has micropores inside, and the micropores are at least partially connected to each other and connected to the first airway hole 10a. When the medium segment 10 is heated, external airflow such as air can enter the medium segment 10 through the first airway hole 10a to diffuse, and the aerosol generated by the medium of the medium segment 10 surrounding the first airway hole 10a (that is, the part of the medium segment 10 exposed to the first airway hole 10a) directly enters the first airway hole 10a, and the aerosol generated by other parts of the medium segment 10 (that is, the part of the medium segment not exposed to the first airway hole 10a) can be collected into the first airway hole 10a through the micropores. In this way, during the inhalation process, the aerosol collected in the first airway hole 10a flows to the second airway hole 20a of the first functional segment 20, and the aerosol in the second airway hole 20a flows to the cavity 100a between the first functional segment 20 and the second functional segment 30. Then, under the action of the Venturi effect, the aerosol can pass through the first channel 30a of the second functional segment 30 more quickly, and finally flow out through the third functional segment 40 into the user's mouth.

[0167] Second embodiment

[0168] See also Figure 3 and Fig.12In this embodiment, the structure of the aerosol generating article 100 is substantially the same as that of the first embodiment, and the main differences include: in this embodiment, on a plane perpendicular to the first direction of the aerosol generating article 100, the cross-sectional shape of the second airway hole 20a is a long strip, and the cross-sectional area of ​​a single second airway hole 20a is greater than the cross-sectional area of ​​a single first airway hole 10a.

[0169] In this way, it is beneficial to the flow of aerosol and improves the situation where the flow of aerosol is obstructed when the second airway hole 20a is misaligned with the first airway hole 10a. At the same time, it is beneficial to adjust the inhalation resistance. For example, the inhalation resistance can be increased by reducing the length of the short side of the long strip second airway hole 20a, and the inhalation resistance can be reduced by increasing the length of the short side of the long strip second airway hole 20a. Of course, the inhalation resistance can also be increased by reducing the length of the long side of the long strip second airway hole 20a, and the inhalation resistance can be reduced by increasing the length of the long side of the long strip second airway hole 20a.

[0170] Third embodiment

[0171] See also Figure 4 and Fig.13 In this embodiment, the structure of the aerosol generating article 100 is substantially the same as that of the first embodiment, and the main differences include: in this embodiment, the first functional segment 20 is provided with a second channel 20b passing through both ends of the first functional segment 20 along the first direction, and the center line of the second channel 20b coincides or substantially coincides with the center axis of the first functional segment 20 along the first direction. The provision of the second channel 20b is conducive to the aerosol gathering toward the center and being sucked, and the aerosol has better agglomeration.

[0172] A first channel 30a passing through two ends of the cooling section along the first direction is provided inside the cooling section, and a center line of the first channel 30a coincides or substantially coincides with a central axis of the cooling section along the first direction.

[0173] The cross-sectional area of ​​the second channel 20b is greater than that of the first channel 30a. Therefore, the high-speed airflow enters the first channel 30a from the second channel 20b to form a Venturi effect, which is more conducive to cooling the airflow.

[0174] An airway groove 20c is formed on the circumferential outer surface of the first functional segment 20, and the airway groove 20c passes through two opposite ends of the first functional segment 20 along the first direction. The provision of the airway groove 20c can increase the contact area between the aerosol and the first functional segment 20, reduce the flow rate of the aerosol, and is more conducive to reducing the temperature of the aerosol.

[0175] Fourth embodiment

[0176] See also Figure 5In this embodiment, the structure of the aerosol generating article 100 is substantially the same as that of the first embodiment, and the main differences include: in this embodiment, the medium segment 10 and the first functional segment 20 are spaced apart to define a cavity 100a. In other words, the medium segment 10 and the first functional segment 20 are spaced apart and surrounded by the wrapping layer 50 wrapped around the periphery of the medium segment 10 and the first functional segment 20 to form the cavity 100a.

[0177] It can be understood that, by forming the cavity 100a between the medium segment 10 and the first functional segment 20, the aerosol generated by heating the medium segment 10 can flow into the cavity 100a, and the setting of the cavity 100a can buffer the aerosol generated by the medium segment 10, that is, the cavity 100a has the function of buffering and converging high-temperature aerosol, which can be beneficial to the extraction of aerosol and improve the utilization rate of the medium segment 10. In addition, the setting of the cavity 100a can increase the contact area between the airflow flowing out of the medium segment 10 and the aerosol generating article 100, thereby achieving a better cooling effect.

[0178] Fifth embodiment

[0179] See also Figure 2 In this embodiment, the structure of the aerosol generating article 100 is substantially the same as that of the first embodiment, and the differences mainly include: in this embodiment, the first functional section 20 and the cooling section are spaced apart to define a cavity 100a. In other words, the first functional section 20 and the cooling section are spaced apart, and the cavity 100a is formed by the wrapping layer 50 wrapped around the first functional section 20 and the cooling section.

[0180] It can be understood that, by forming the cavity 100a between the first functional segment 20 and the cooling segment, the aerosol generated by heating the medium segment 10 can flow to the first functional segment 20, and then flow to the cavity 100a for buffering. Thus, during the aerosol transport process, the flow path of the aerosol is increased, thereby achieving a rapid cooling effect. At the same time, the setting of the cavity 100a can also buffer the aerosol generated by the medium segment 10.

[0181] A first channel 30a passing through two ends of the cooling section along the first direction is provided inside the cooling section, and a center line of the first channel 30a coincides or substantially coincides with a central axis of the cooling section along the first direction.

[0182] Specifically, the cooling section can be, for example, one of a hollow paper tube, a cellulose acetate tube or an aluminum foil tube. That is to say, a first channel 30a with a larger aperture is provided inside the cooling section, and a high-speed airflow enters the first channel 30a of the cooling section from the cavity 100a to form a Venturi effect, which is more conducive to cooling the airflow.

[0183] Sixth embodiment

[0184] See also Figure 6 In this embodiment, the structure of the aerosol generating product 100 is substantially the same as that of the first embodiment, and the main differences include: in this embodiment, a cavity 100a is provided between the medium segment 10 and the first functional segment 20, and between the first functional segment 20 and the second functional segment 30.

[0185] In this embodiment, when the high-temperature aerosol flows through each cavity 100a, buffer diffusion and throttling and pressure reduction are formed, which has the functions of segmented throttling and enhancing the effect of lowering the aerosol temperature, and is conducive to rapid extraction of the aerosol.

[0186] Seventh embodiment

[0187] See also Figure 7 and Figure 8 In this embodiment, the structure of the aerosol generating product 100 is substantially the same as that of the first embodiment, and the main differences include: in this embodiment, the first functional segment 20 is in a mesh shape. The mesh-shaped first functional segment 20, that is, the size of the first functional segment 20 along the first direction is small, and a plurality of second airway holes 20a that pass through along the first direction are formed thereon. In this way, on the basis of adjusting the inhalation resistance of the aerosol generating product 100, the size of the first functional segment 20 along the first direction can be effectively reduced, thereby facilitating the reduction of the overall size of the aerosol generating product 100 and making the structure more compact.

[0188] The specific material of the mesh-shaped first functional segment 20 is not limited. For example, the material can be a metal mesh, a paper tube covered with high-permeability paper / film, etc., so that the first functional segment 20 has a certain temperature resistance. A plurality of second airway holes 20a are arranged in the first functional segment 20. The aperture of the second airway hole 20a is smaller than the aperture of the first airway hole 10a, so that the first functional segment 20 has the function of adjusting the suction resistance of the aerosol generating product 100. At the same time, the aerosol can collide and exchange heat with the first functional segment 20, thereby having a cooling and / or filtering effect on the aerosol.

[0189] Eighth embodiment

[0190] See also Fig. 9 and Fig.14 In this embodiment, the structure of the aerosol generating product 100 is substantially the same as that of the first embodiment, and the main differences include: in this embodiment, the first functional section 20 is a folding structure, and the interior of the folding structure has an interlayer air channel 20d extending along the first direction. In this way, on the basis of adjusting the inhalation resistance of the aerosol generating product 100, the flow path of the aerosol and the contact area with the first functional section 20 can be lengthened, thereby also having the function of preliminarily cooling the aerosol. In addition, the first functional section 20 of the folding structure also has a supporting and filtering function.

[0191] It should be noted that the specific material of the first functional section 20 of the foldable structure is not limited here. For example, polylactic acid (PLA), paper, etc. can be selected and formed by gathering. By controlling the porosity, the suction resistance of the aerosol generating product 100 can be adjusted.

[0192] In addition, the first functional section 20 can be supported by a phase change material, which absorbs heat by phase change to enhance the effect of lowering the aerosol temperature. The phase change material is, for example, polylactic acid (PLA), which can phase change, melt, and absorb heat when a 120°C steam flow passes through.

[0193] Ninth embodiment

[0194] See also Fig.10 In this embodiment, the structure of the aerosol generating article 100 is substantially the same as that of the first embodiment, and the main differences include: in this embodiment, the first functional segment 20 is a tow-type structure. In some embodiments, the tow-type structure is, for example, a solid acetate fiber structure, and airflow pores are formed by gaps between the tows of the solid acetate fiber structure. The aerosol generated by the medium segment 10 can pass through the airflow pores and flow to the cooling segment. The size of the airflow pores is smaller than the size of the first airway hole 10a, and has the function of adjusting the suction resistance.

[0195] In addition, when the aerosol passes through the airflow pores, the filament-type structure has a large surface area, which can filter the aerosol, thereby filtering the impurities contained in the aerosol, improving the user experience. At the same time, the resistance of airflow suction can be adjusted through the filament-type structure, and the filament-type structure can prevent the condensate formed after the aerosol condenses from flowing out of the aerosol generating product 100 and causing adverse effects on other devices in the aerosol generating device.

[0196] It should be noted that the air flow pores formed in the filament bundle structure can be pores in a macroscopic sense; they can also be pores in a microscopic sense, that is, they cannot be directly identified by the naked eye.

[0197] Tenth embodiment

[0198] See also Fig.11 In this embodiment, the structure of the aerosol generating product 100 is substantially the same as that of the ninth embodiment, and the main differences include: in this embodiment, the tow-type structure is a hollow acetate fiber structure, that is, the tow-type structure is provided with a second channel 20b.

[0199] 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.

[0200] 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 The aerosol generating article comprises a medium segment, a first functional segment, a second functional segment and a third functional segment arranged in sequence along a first direction; One of the second functional section and the third functional section is a temperature reduction section; The medium segment is an integrated structure, and has at least one first airway hole inside the medium segment, and the first airway hole passes through at least one end of the medium segment along the first direction; The suction resistance of the first functional section is different from the suction resistance of the medium section.

2. The aerosol-generating article according to claim 1, wherein The medium segment, the first functional segment, the second functional segment and the third functional segment are separable structures, and the first functional segment is an integrated structure.

3. The aerosol-generating article according to claim 2, wherein: The first functional segment has at least one second airway hole inside, and the second airway hole passes through at least one end of the first functional segment along the first direction.

4. The aerosol-generating article according to claim 3, wherein: On a plane perpendicular to the first direction of the aerosol generating article, the cross-sectional shape of the second airway hole is at least one of a circle, an ellipse, a racetrack, a strip, a polygon and a sector.

5. The aerosol-generating article according to claim 3, wherein: In a plane perpendicular to the first direction of the aerosol generating article, the cross-sectional shape of the second airway hole is circular; The cross-sectional area of ​​a single second airway hole is smaller than the cross-sectional area of ​​a single first airway hole, or the hydraulic diameter of a single second airway hole is smaller than the hydraulic diameter of a single first airway hole.

6. The aerosol-generating article of claim 3, wherein: On a plane perpendicular to the first direction of the aerosol generating article, the cross-sectional shape of the second airway hole is a long strip; The cross-sectional area of ​​a single second airway hole is greater than the cross-sectional area of ​​a single first airway hole.

7. The aerosol-generating article of claim 2, wherein: An airway groove is formed on the circumferential outer surface of the first functional segment, and the airway groove passes through two opposite ends of the first functional segment along the first direction; and / or the composition of the first functional segment is the same as that of the medium segment.

8. The aerosol-generating article of claim 1, wherein: The first functional section is in a mesh shape.

9. The aerosol-generating article of claim 1, wherein: The first functional section is a folding structure or a pleated structure, and the folding structure or the pleated structure has an interlayer air channel extending along a first direction.

10. The aerosol-generating article of claim 1, wherein: The first functional segment is a tow-type structure.

11. The aerosol-generating article of claim 1 , wherein: The aerosol-generating article has at least one cavity defined therein.

12. An aerosol-generating article according to claim 11, characterized in that The medium segment and the first functional segment are spaced apart to define the cavity; and / or the first functional segment and the second functional segment are spaced apart to define the cavity.

13. The aerosol-generating article of claim 1, wherein: The second functional section is a cooling section, and a first channel passing through both ends of the cooling section along a first direction is arranged inside the cooling section, and a center line of the first channel coincides with a central axis of the cooling section along the first direction; the first functional section is provided with a second channel passing through both ends of the first functional section along the first direction, and a center line of the second channel coincides with a central axis of the first functional section along the first direction, and a cross-sectional area of ​​the second channel is greater than a cross-sectional area of ​​the first channel.

14. The aerosol-generating article of claim 1, wherein: The second functional section is a cooling section, and the third functional section is a filtering section; or, the second functional section is a filtering section, and the third functional section is a cooling section.

15. The aerosol-generating article of claim 1, wherein: The medium segment, the first functional segment, the second functional segment and the third functional segment are cylindrical and are coaxially arranged, and the first direction is the axial direction of the four.

16. An aerosol generating system, characterized in that: The aerosol generating system comprises an aerosol generating device and the aerosol generating article according to any one of claims 1 to 15, wherein the aerosol generating device comprises a heating element for heating the medium segment to generate an aerosol.

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