Aerosol-generating article and aerosol-generating device

Abstract

Provided in the present application are an aerosol-generating article and an aerosol-generating device. The aerosol-generating article comprises: a housing made of paper and having airflow channels therein; and a plurality of aerosol bodies capable of generating aerosol, which are distributed spaced apart from each other in the housing and in fluid communication with the airflow channels. In the aerosol-generating article, the housing is prepared using paper instead of peek plastic, which can not only reduce the production cost of the aerosol-generating article, but also reduce white pollution.

Description

Aerosol-generating article and aerosol-generating device

[0001] Cross Reference to Related Applications

[0002] This application claims priority to the prior application filed on August 5, 2024, with the China National Intellectual Property Office, application number 202411066945.3, entitled "Aerosol-generating article and aerosol-generating device", the contents of the above-mentioned prior application are incorporated herein by reference. TECHNICAL FIELD

[0003] The present application relates to the field of aerosol generation technology, in particular to an aerosol-generating article and an aerosol-generating device adapted thereto. BACKGROUND

[0004] An aerosol-generating device is a device that can make an aerosol generated by an aerosol-generating article when heated without combustion for a user to smoke. In some exemplary prior art, there is an aerosol-generating article comprising a substrate, a cover plate and a tobacco sheet, the substrate is provided with a containing groove, the tobacco sheet is contained in the containing groove, and the cover plate has a gap space between the substrate after being buckled with the substrate, the gap space is in fluid communication with the tobacco sheet and forms an airflow passage capable of transmitting aerosol.

[0005] The cover plate and the substrate are both made of peek plastic, which on the one hand causes the production cost of the aerosol-generating article to be high, and on the other hand the peek plastic is difficult to degrade and is easy to cause white pollution to the environment. SUMMARY

[0006] The embodiments of the present application provide an aerosol-generating article and an aerosol-generating device, aiming to solve the technical problems of high production cost of the existing aerosol-generating article and easy to cause white pollution to the environment.

[0007] In a first aspect, the embodiments of the present application provide an aerosol-generating article. The aerosol-generating article comprises:

[0008] a shell made of paper material, the shell having an airflow passage therein; and

[0009] a plurality of aerosol bodies capable of generating aerosol, distributed in the shell at intervals and in fluid communication with the airflow passage.

[0010] In some embodiments, the shell is formed by folding the paper material.

[0011] In some embodiments, one side wall of the shell comprises a first connecting edge and a second connecting edge arranged at least partially overlapping, the first connecting edge and the second connecting edge being located on opposite sides of the paper material after being unfolded to form the shell.

[0012] In some embodiments, the housing is assembled by a plurality of paper sheets, or the housing is assembled by a plurality of folded paper sheets.

[0013] In some embodiments, the plurality of aerosol bodies are retained on the side walls of the housing.

[0014] In some embodiments, the housing has a plurality of side walls, at least one of which is flat, and the aerosol bodies are retained on the same flat side wall in the housing.

[0015] In some embodiments, the side walls include a first side wall and a second side wall arranged non-coplanarly, and part of the aerosol bodies are retained on the first side wall and part of the aerosol bodies are retained on the second side wall.

[0016] In some embodiments, the first side wall and the second side wall are both flat, and the first side wall and the second side wall are arranged oppositely or adjacently.

[0017] In some embodiments, the housing has a substantially trapezoidal cross-section or surface.

[0018] In some embodiments, the aerosol body includes an aerosol substrate and a heating element, the aerosol substrate is arranged close to the airflow passage, and the heating element is used to heat the aerosol substrate to generate aerosol.

[0019] In some embodiments, the heating element includes a fixed portion, at least part of which is embedded in the side wall of the housing.

[0020] In some embodiments, the aerosol generating article further includes a fixing member for delimiting a boundary of the airflow passage portion, and the aerosol body is located between the fixing member and the housing.

[0021] In some embodiments, the fixing member includes a retaining portion and a through hole, the retaining portion covers part of the aerosol body to retain the aerosol body on the side wall of the housing, and the aerosol substrate is in fluid communication with the airflow passage through the through hole.

[0022] In some embodiments, the fixing member is made of paper.

[0023] In some embodiments, the aerosol generating article further includes a limiting member arranged between the fixing member and the side wall, the limiting member has a limiting hole, and at least part of the aerosol substrate is located in the limiting hole.

[0024] In some embodiments, the limiting member is made of paper.

[0025] In some embodiments, the limiting member is bonded to the side wall of the housing; and / or

[0026] The retaining portion is bonded to the limiting member.

[0027] In some embodiments, the housing has a positioning hole.

[0028] In some embodiments, the housing comprises a first port and a gas-permeable wall disposed in the first port, the gas-permeable wall being configured to allow ambient air to enter the airflow passage; or

[0029] The housing comprises an open first port, the first port being configured to allow ambient air to enter the airflow passage; or

[0030] The housing comprises an open second port, the second port being configured to allow gas in the airflow passage to flow out of the housing.

[0031] In some embodiments, the aerosol generating article further comprises a gas-impermeable layer, the gas-impermeable layer being disposed on a surface of the housing side wall; or

[0032] The housing is made of a paper material having gas-impermeability.

[0033] In some embodiments, the aerosol generating article further comprises an extraction member, the extraction member being disposed on an outer surface of the housing side wall, the extraction member comprising a connecting portion and an operating portion, the connecting portion being connected to the outer surface of the housing, the operating portion being configured to be detached from the outer surface of the housing and flipped relative to the connecting portion, thereby allowing a user to grip.

[0034] In some embodiments, the paper material satisfies at least one of the following conditions:

[0035] The paper material has a mass per square meter greater than or equal to 300 g;

[0036] The paper material has a thickness between 400 μm and 700 μm;

[0037] The paper material has a stiffness greater than or equal to 6 mN·m;

[0038] The paper material is white;

[0039] The paper material comprises a flame retardant; and

[0040] The paper material comprises board paper, tissue paper, art paper, book cover paper, or card paper.

[0041] In a second aspect, the present disclosure further provides an aerosol generating device. The aerosol generating device comprises:

[0042] The aerosol generating article includes a cover assembly, a main body, and a receiving box for receiving the aerosol generating article, the receiving box is arranged in the main body, and the main body further has an air inlet channel in fluid communication with the outside world and the receiving box;

[0043] The cover assembly is configured to be operable and based on the operation, the receiving box can be exposed or covered, and when the cover assembly covers the receiving box, there is no interference between the cover assembly and the shell of the aerosol generating article, and the cover assembly forms a sealing connection with the main body or the receiving box.

[0044] Unlike the prior art, the present application discloses an aerosol generating article and an aerosol generating device. The aerosol generating article includes a shell made of paper, and the shell has an airflow channel therein; and a plurality of aerosol bodies capable of generating aerosol are distributed in the shell at intervals and are in fluid communication with the airflow channel. The aerosol generating article uses paper to replace peek plastic to prepare the shell, which not only can reduce the production cost of the aerosol generating article, but also can reduce white pollution. BRIEF DESCRIPTION OF DRAWINGS

[0045] One or more embodiments are illustrated by way of example in the figures that are part of this disclosure and which are illustrative, but not restrictive, of the embodiments, wherein elements having the same reference number designates like elements throughout the various figures, unless otherwise expressly provided for in the patent claim(s), the figures do not limit the proportion of the elements.

[0046] FIG. 1 is a schematic view of an aerosol generating device according to some embodiments of the present application;

[0047] FIG. 2 is a schematic view of an aerosol generating device according to some embodiments of the present application;

[0048] FIG. 3 is an exploded schematic view of an aerosol generating device according to some embodiments of the present application;

[0049] FIG. 4 is another exploded schematic view of an aerosol generating device according to some embodiments of the present application;

[0050] FIG. 5 is a schematic view of an aerosol generating article according to some embodiments of the present application;

[0051] FIG. 6 is a cross-sectional view of an aerosol generating article according to some embodiments of the present application;

[0052] FIG. 7 is a schematic view of an aerosol generating article according to some embodiments of the present application before assembly;

[0053] FIG. 8 is a schematic view of an aerosol generating article according to some embodiments of the present application during preliminary assembly;

[0054] FIG. 9 is a schematic view of an aerosol generating article according to another embodiment of the present application;

[0055] FIG. 10 is a schematic view of an aerosol generating article according to another embodiment of the present application;

[0056] FIG. 11 is a schematic view of an aerosol generating article according to another embodiment of the present application, before assembly;

[0057] FIG. 12 is a schematic view of an aerosol generating article according to another embodiment of the present application, in a trapezoidal cross-section.

[0058] Reference numerals:

[0059] 1, aerosol generating device; 11, magnetic field generator; 12, main body; 121, housing; 122, window; 13, cover assembly; 131, first magnetic member; 14, storage case; 141, first receiving cavity; 142, second receiving cavity; 143, air inlet hole; 144, air outlet hole; 15, mouthpiece assembly; 16, air inlet passage; 17, first sealing ring; 18, second sealing ring; 19, fourth sealing ring; 20, third sealing ring;

[0060] 2, aerosol generating article; 21, aerosol body; 211, aerosol base material; 212, heating element; 22, housing; 221, first side wall; 222, second side wall; 223, first connecting edge; 224, second connecting edge; 23, fixing member; 231, holding portion; 232, through hole; 24, limiting member; 241, limiting hole; 25, airflow passage; 26, air-permeable wall; 27, positioning hole; 28, extraction member; 281, connecting portion; 282, operation portion; 29, sealing wall; 30, mouthpiece. Embodiments of the present application

[0061] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0062] The terms "first", "second", "third", etc. are used herein only to describe the purpose of the embodiments, and cannot be understood as indicating or implying relative importance or implying the number or order of the technical features indicated. All directional indications (such as upper, lower, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship or movement between the components, and if the specific posture changes, the directional indications will also change accordingly. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but can optionally include steps or units not listed, or can optionally include other steps or units inherent to the process, method, product or device.

[0063] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearance of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily independent or alternative embodiments to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0064] 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 can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element, or intervening elements can be present. The terms "vertical", "horizontal", "left", "right", and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation.

[0065] Referring to FIGS. 1-12, some embodiments of the present application provide an aerosol generating article 2 that can interact with an aerosol generating device 1 and can generate an aerosol under power provided by the aerosol generating device 1.

[0066] The aerosol generating article 2 includes a plurality of aerosol bodies 21 disposed apart from each other and a case 22 for accommodating the plurality of aerosol bodies 21, wherein the aerosol bodies 21 each include an aerosol base material 211 that can generate an aerosol upon being heated.

[0067] As used herein, the term "plurality" means two or more.

[0068] As used herein, the term "aerosol substrate" refers to a substrate capable of releasing volatile material to form an inhalable aerosol therefrom. The aerosol substrate can include a tobacco-containing material that contains volatile tobacco flavour compounds that are released from the substrate upon heating. In particular, the aerosol substrate can be a tobacco-containing aerosol substrate, preferably a solid tobacco-containing aerosol substrate. Alternatively, the aerosol substrate can include a non-tobacco material. The aerosol substrate can also include an aerosol former. Examples of suitable aerosol formers are glycerol and propylene glycol.

[0069] Optionally, the aerosol substrate can contain additional tobacco or non-tobacco volatile flavour compounds that are released upon heating of the aerosol substrate. The aerosol substrate can also contain microcapsules, for example containing additional tobacco or non-tobacco volatile flavour compounds, and such microcapsules can melt during heating of the solid aerosol substrate.

[0070] The aerosol substrate 211 can be generally disc-shaped or circular. The aerosol substrate 211 can be generally rectangular.

[0071] Preferably, the aerosol substrate is a tobacco sheet that includes a tobacco material, fibres, a binder and an aerosol former. Preferably, the tobacco sheet is a cast leaf. A cast leaf is a form of reconstituted tobacco formed from a slurry containing tobacco particles, fibre particles, an aerosol former, a binder and, for example, also a flavouring agent.

[0072] The tobacco particles can be in the form of tobacco dust having particles of about 30 microns to 250 microns, preferably about 30 microns to 80 microns or 100 microns to 250 microns, depending on the desired sheet thickness and the casting gap, wherein the casting gap generally defines the thickness of the sheet.

[0073] The thickness of the aerosol substrate 211 can be in the range between 0.2 mm (mm means millimetres) and 6 mm, preferably between 0.5 mm and 4 mm, more preferably between 0.2 mm and 1 mm, for example the thickness of the aerosol substrate 211 can be about 0.4 mm.

[0074] The fibre particles can include tobacco stem material, straw or other tobacco plant material, as well as other cellulose-based fibres, for example wood fibres having a low lignin content. The fibre particles can be selected based on the need to produce a sheet of sufficient tensile strength and low inclusion rate, for example between about 2% and 15%. Alternatively, fibres such as vegetable fibres can be used together with the fibre particles described above, or in the alternative, including hemp and bamboo.

[0075] In some embodiments, the aerosol generating article 2 further includes a heating element 212 for releasing heat to heat the aerosol base material 211 so that the aerosol base material 211 generates an aerosol.

[0076] The heating element 212 can be provided in plural. The plural heating elements 212 can be provided in one-to-one correspondence with the plural aerosol bodies 21, so that each heating element 212 mainly provides heat to one of the aerosol bodies 21 to make the aerosol body 21 generate an aerosol.

[0077] The heating element 212 can be a constituent of the aerosol body 21, i.e., at least one of the aerosol bodies 21 contains the heating element 212 for heating the aerosol base material 211, in addition to containing the aerosol base material 211.

[0078] In some embodiments, the aerosol body 21 further includes a heating element 212 for heating the aerosol base material 211 to generate an aerosol.

[0079] The heating element 212 can be in direct contact with the aerosol base material 211. Based on this, as an example, the aerosol base material 211 is adhered to the surface of the heating element 212 by an adhesive. As an example, the aerosol base material 211 is made into a paste, applied to the surface of the heating element 212, and after drying, an aerosol base material coating layer is formed on the surface of the heating element 212. As an example, the heating element 212 is fixed to one of the side walls of the housing 22, and the aerosol generating article 2 further includes a fixing member 23 that interferingly fits with the aerosol base material 211 so that the aerosol base material 211 is in contact with the heating element 212. As an example, at least a part of the heating element 212 is provided inside the aerosol base material 211.

[0080] The heating element 212 can be provided spaced apart from the corresponding aerosol base material 211. For example, the heating element 212 is provided on the outer surface of the housing 22 or outside the housing 22, and the aerosol base material 211 is provided inside the housing 22.

[0081] In some embodiments, the heating element 212 comprises a susceptor, the term "susceptor" when used herein refers to a material that can convert electromagnetic energy into heat. An eddy current induced in the susceptor when located within a varying electromagnetic field causes heating of the susceptor. In such embodiments, the aerosol-generating device 1 can comprise a magnetic field generator 11. The magnetic field generator 11 generates a varying magnetic field to heat the susceptor located within the varying magnetic field. In use, the susceptor is located within the varying magnetic field generated by the magnetic field generator 11. The magnetic field generator 11 is electrically connected to a power supply assembly in the aerosol-generating device 1, which provides the magnetic field generator 11 with an electric current to generate the varying magnetic field. The magnetic field generator 11 can comprise one or more induction coils that generate the varying magnetic field. In some embodiments, the aerosol-generating device 1 is capable of generating a varying magnetic field between 10 MHz (MHz represents megahertz, which is the unit of frequency of a magnetic field) and 30 MHz, for example between 20 MHz and 10 MHz, for example between 50 MHz and 7 MHz. In some embodiments, the aerosol-generating device is capable of generating a varying magnetic field with a field strength (H field or magnetic field strength) between 1 kA / m (kA / m represents kiloampere per meter, which is the unit of magnetic field strength) and 5 kA / m, for example between 2 kA / m and 3 kA / m, for example about 2.5 kA / m.

[0082] The susceptor can comprise a metal or carbon. In some embodiments, the susceptor can comprise a ferromagnetic material, for example ferrite, ferromagnetic steel or stainless steel. In some embodiments, the susceptor comprises a nickel-iron alloy. In some embodiments, the susceptor comprises a 400 series stainless steel, which includes but is not limited to 410 grade stainless steel, 420 grade stainless steel and 430 grade stainless steel.

[0083] Generally, the 400 series stainless steel is an alloy of iron, carbon and chromium, mainly in ferrite structure and martensite structure; wherein the 400 series stainless steel has magnetic properties and strong high-temperature oxidation resistance; in addition, the 400 series stainless steel does not contain nickel or contains a small amount of nickel, and belongs to nickel-saving type stainless steel.

[0084] The 410 grade stainless steel and the 420 grade stainless steel in the 400 series stainless steel are both martensitic stainless steel, and the chromium content is 12% to 14%; while the 430 grade stainless steel in the 400 series stainless steel is ferritic stainless steel, and the chromium content is 17%-18%.

[0085] In some embodiments, the heating element 212 comprises a resistive material or an infrared coating. The resistive material is capable of generating Joule heat when obtaining the power provided by the power supply assembly. The infrared coating is capable of emitting infrared rays when obtaining the power provided by the power supply assembly.

[0086] In some embodiments, the heating element 212 is substantially disc-shaped or circular. In some embodiments, the heating element 212 is substantially rectangular. In some embodiments, the heating element 212 has substantially the same shape as the aerosol substrate 211.

[0087] It is to be noted that the aerosol body 21 containing the heating element 212 is optional, and in other embodiments, the aerosol generating device has a heating element, and the aerosol generating device heats the aerosol substrate in the aerosol generating article by the heating element. And when the aerosol generating article is removed from the aerosol generating device, the heating element in the aerosol generating device can continue to remain in the aerosol generating device.

[0088] In some embodiments, a plurality of aerosol bodies 21 capable of generating aerosols are distributed in the housing 22 at intervals from each other, so that the plurality of aerosol bodies 21 are independent of each other in the housing 22. Wherein, the plurality of aerosol bodies 21 can be independent of each other before being accommodated in the housing 22. And the plurality of aerosol bodies 21 arranged in the housing 22 are configured to generate aerosols at different times, for example, the plurality of aerosol bodies 21 arranged in the housing 22 can generate aerosols in a preset order. Further, the amount of aerosol generated by each aerosol substrate 211 can be for one puff of a user, so the number of puffs of the aerosol generating article 2 can be the same as the number of aerosol bodies 21.

[0089] In some embodiments, referring to FIGS. 5, 6 and 10, the housing 22 has an airflow passage 25. The aerosol bodies 21 can be all retained on the side wall of the housing 22, and the plurality of aerosol substrates 211 can be in fluid communication with the same or different airflow passages 25. The plurality of aerosol bodies 21 accommodated in the housing 22 can share one airflow passage 25 to transmit aerosols, so the housing 22 can have one air inlet and one air outlet, so that the structure of the housing 22 is simple and the structure of the housing 22 is stable. At least two of the plurality of aerosol bodies 21 accommodated in the housing 22 can be arranged to transmit aerosols through two different airflow passages 25, respectively.

[0090] In some embodiments, referring to FIGS. 10 and 11, the aerosol bodies 21 are all retained on the same side wall in the housing 22.

[0091] In some embodiments, referring to FIG. 5 and FIG. 6, the housing 22 comprises a first side wall 221 and a second side wall 222 arranged in a non-coplanar manner, a portion of the plurality of aerosol bodies 21 are held on the first side wall 221, and a portion of the plurality of aerosol bodies 21 are held on the second side wall 222. The first side wall 221 and the second side wall 222 can be located on different sides of the same airflow channel 25, for example, the first side wall 221 and the second side wall 222 can be arranged to face the same airflow channel 25. This allows at least two aerosol substrates 211 to be in fluid communication with the airflow channel 25 in different directions, not only increasing the distribution density of the aerosol bodies 21 in the limited space within the housing 22, allowing the limited space within the housing 22 to accommodate more aerosol bodies 21 without increasing the volume of the airflow channel 25, but also allowing the aerosol bodies 21 to be more concentrated, thereby reducing the volume of the housing 22 and the volume of the airflow channel 25.

[0092] Preferably, referring to FIG. 5, the airflow channel 25 has a substantially rectangular cross-section, which has a smaller area than a circular cross-section. In one example, the width w of the airflow channel 25 is less than 15 mm, for example, the width w of the airflow channel 25 can be about 12 mm. In one example, the height h of the airflow channel 25 is less than 3 mm, for example, the height h of the airflow channel 25 can be about 2.7 mm. In one example, the difference between the width of the airflow channel 25 and the width of the aerosol substrate 211 is less than 5 mm, for example, the difference can be about 3.6 mm. It should be noted that when the aerosol substrate 211 is substantially disc-shaped or circular, the width of the aerosol substrate 211 is substantially the diameter of the disc or circle, and when the aerosol substrate 211 is substantially disc-shaped or rectangular, the width of the aerosol substrate 211 is substantially the width of the rectangle. In one example, the difference between the width w of the airflow channel 25 and the width of the aerosol substrate 211 is less than 1 / 2 of the width of the aerosol substrate 211. In a specific embodiment, the width of the aerosol substrate 211 is about 8.5 mm, and the width w of the airflow channel 25 is about 12 mm.

[0093] It should be noted that in other embodiments, the cross-section of the airflow channel 25 can also be other non-circular shapes.

[0094] The aerosol body 21 can be substantially sheet-shaped, and the first side wall 221 can have a planar inner surface, so that the first side wall 221 can better hold the aerosol body 21 and facilitate the assembly of the aerosol body 21 on the first side wall 221. The second side wall 222 can also have a planar inner surface to better hold the aerosol body 21.

[0095] Further, the first side wall 221 can be substantially flat, and the second side wall 222 can also be substantially flat.

[0096] The first side wall 221 and the second side wall 222 can be two side walls of the housing 22 which are arranged adjacently. For example, the cross section of the housing 22 can be substantially triangular, and thus the housing 22 further comprises a third side wall on which a portion of the plurality of aerosol bodies 21 can also be held.

[0097] The first side wall 221 and the second side wall 222 can be two side walls of the housing 22 which are arranged adjacently. For example, the cross section of the housing 22 can be substantially triangular, and thus the housing 22 further comprises a third side wall on which a portion of the plurality of aerosol bodies 21 can also be held.

[0098] When the first side wall 221 and the second side wall 222 are arranged oppositely, the distance between the first side wall 221 and the second side wall 222 can be substantially constant in the length direction of the housing 22. For example, the inner surface of the first side wall 221 and the inner surface of the second side wall 222 can be substantially planar, and the inner surface of the first side wall 221 and the inner surface of the second side wall 222 can be parallel to each other. In other embodiments, when the first side wall 221 and the second side wall 222 are arranged oppositely, the distance between the first side wall 221 and the second side wall 222 can gradually increase or decrease in the length direction of the housing 22.

[0099] In some embodiments, the housing 22 has a plurality of side walls, and the aerosol bodies 21 can be arranged on the same side wall. Further, in the plurality of side walls of the housing 22, at least one side wall has a substantially planar inner surface, and the aerosol bodies 21 can be held on the same substantially planar inner surface. Further, in the plurality of side walls of the housing 22, at least one side wall is substantially planar, and the planar side wall has a planar inner surface, so that the aerosol bodies 21 can be held on the same planar side wall of the housing 22.

[0100] In some embodiments, the housing 22 has a plurality of side walls, and at least one side wall of the plurality of side walls is substantially rectangular, so that the housing 22 has at least one substantially rectangular face. In other embodiments, at least one side wall of the housing 22 can be substantially trapezoidal, so that the housing 22 has at least one substantially trapezoidal face.

[0101] It is to be noted that the housing 22 can also have an arc-shaped side wall, so as to have an arc-shaped face. The housing 22 can also be substantially cylindrical, so as to have a circular face.

[0102] In some embodiments, the housing 22 comprises a first port which is open, and which is configured to allow ambient air to enter the airflow passage 25. The first side wall 221 and the second side wall 222 can define part of the boundary of the first port. In order to prevent condensate formed from aerosol in the airflow passage 25 from leaking from the first port, the aerosol generating article 2 can further comprise a gas-permeable wall 26 which allows airflow to pass therethrough, the gas-permeable wall 26 being disposed on the first port. At least part of the gas-permeable wall 26 can be located in the first port so as to connect the inner surfaces of the first side wall 221 and the second side wall 222, and at least part of the gas-permeable wall 26 can be located outside the first port so as to shield the first port and connect the end portions of the first side wall 221 and the second side wall 222. As an example, the gas-permeable wall 26 comprises a paper sheet provided with a plurality of gas-permeable holes. As an example, the gas-permeable wall 26 comprises a gas-permeable fiber mass, such as gas-permeable cotton, acetate fiber, a filter core or gauze, so that the gas-permeable wall 26 is also capable of absorbing liquid.

[0103] In some embodiments, the housing 22 comprises a second port which is open, and which is configured to allow the gas in the airflow passage 25 to flow out of the housing 22. The first side wall 221 and the second side wall 222 can define part of the boundary of the second port.

[0104] The first port and the second port can be located on opposite sides of the housing 22.

[0105] After the aerosol body 21 is accommodated in the housing 22, the aerosol substrate 211 can be disposed close to the airflow passage 25 so as to reduce the distance that the aerosol generated by the aerosol substrate 211 has to travel to flow into the airflow passage 25. Based on this, the aerosol substrate 211 can be located between the heating element 212 corresponding thereto and the airflow passage 25.

[0106] Alternatively, after the aerosol body 21 is accommodated in the housing 22, the heating element 212 can be disposed close to the airflow passage 25 so as to prevent the aerosol generated by other aerosol substrates 211 from condensing on the aerosol substrate 211 corresponding thereto, and / or to enable the condensate condensed thereon to be volatilized when heated. Based on this, the heating element 212 can be located between the aerosol substrate 211 corresponding thereto and the airflow passage 25.

[0107] In some embodiments of the present application, the housing 22 is made of paper material. Paper material is not only lower in cost than plastic, but also more environmentally friendly.

[0108] Based on this, in some embodiments, the shell 22 is formed by folding a piece of paper. The planar paper can be folded into a three-dimensional shape having at least three side walls, for example, the shell 22 is substantially a square box shape having a quadrilateral cross section, or for example, the shell 22 is substantially a triangular prism shape having a substantially triangular cross section.

[0109] For example, referring to FIGS. 5, 7 and 8, 10 and 11, one side wall of the shell 22 includes a first connecting edge 223 and a second connecting edge 224 arranged at least partially overlapped, the first connecting edge 223 and the second connecting edge 224 are located on opposite sides of the paper unfolded to form the shell 22. The first connecting edge 223 and the second connecting edge 224 can be bonded to each other by an adhesive or double-sided tape, etc., to prevent one of the first connecting edge 223 and the second connecting edge 224 located inside the side wall from being warped inward. Among them, the first connecting edge 223 and the second connecting edge 224 can have substantially the same height and length, but are not limited thereto.

[0110] For example, the paper used to make the shell 22 can overlap each other without edges after the shell 22 is made. For example: the end of one side wall of the shell 22 abuts the inner surface of the other side wall adjacent to it, and the outer surfaces of the two side walls are covered and connected by a tape, and the tape can cover the joint between the two side walls, thereby sealing the joint and preventing aerosol from leaking through the joint.

[0111] In some embodiments, the shell 22 is formed by splicing multiple pieces of paper. In the multiple pieces of paper, at least part of the paper can be flat; or, in the multiple pieces of paper, at least part of the paper is in a folded state with a fold angle.

[0112] Referring to FIGS. 7 and 8, 10 and 11, the aerosol bodies 21 can be arranged at appropriate positions of the paper before the paper is folded or spliced to form the shell 22, and then the paper is folded or spliced. After the shell 22 is formed, each aerosol body 21 is located on the corresponding side wall of the shell 22.

[0113] As an example, the heating element 212 includes a fixed portion, at least part of the fixed portion is embedded in the side wall of the shell 22 for fixation, for example, embedded in the first side wall 221 and / or the second side wall 222 for fixation. The fixed portion can be embedded in the side wall by piercing the paper, or a hole can be pre-punched on the shell 22 (which is a paper shell made of paper), and at least part of the fixed portion is embedded in the hole. It should be noted that the heating element 212 including the fixed portion is optional and other ways can be used to keep the heating element 212 on the side wall of the shell 22.

[0114] Since the shell 22 needs to support a plurality of aerosol bodies 21, the shell 22 needs to have a certain stiffness and also needs to avoid being ignited by the heated heating element 212. Therefore, the paper material used to manufacture the shell 22 needs to satisfy at least one of the following conditions:

[0115] (1) The mass per square meter of the paper material is greater than or equal to 300 g (g represents gram). Preferably, the mass per square meter of the paper material is greater than or equal to 350 g; or preferably, the mass per square meter of the paper material is greater than or equal to 400 g.

[0116] The ignition point of common paper is usually between 130 °C (°C represents Celsius) and 255.5 °C. In the present application, the aerosol substrate has a small thickness, and the preferred thickness thereof is not greater than 1 mm. Therefore, the heating temperature of the heating element 212 on the aerosol substrate 211 and the heating time of the heating element 212 on the aerosol substrate 211 can be reduced, for example, the heating temperature of the heating element 212 can be lower than 260 °C or lower than 250 °C. In the case of having the same color and the same water content, the greater the mass per square meter of the paper material, the higher the ignition point. Therefore, appropriately increasing the mass per square meter of the paper material can increase the ignition point of the paper. Therefore, the mass per square meter of the paper material used to manufacture the shell 22 can be at least greater than 300 g to prevent the shell 22 from burning when the heating element 212 is heated.

[0117] (2) The paper material is white to reduce the heat absorption capacity of the paper material.

[0118] (3) The paper material has a flame retardant therein to make the paper material have a high ignition point, and even to make the ignition point of the paper material exceed that of common paper.

[0119] (4) The thickness of the paper material is between 400 μm (μm represents micrometer) and 700 μm. Preferably, the thickness of the paper material is between 450 μm and 650 μm; or preferably, the thickness of the paper material is between 500 μm and 600 μm, for example, the thickness of the paper material can be about 555 μm.

[0120] Under the same conditions, the paper having a greater thickness has a better stiffness and can better support a plurality of aerosol bodies. However, due to the volume limitation of the aerosol generating article, the shell has a small volume, and therefore the thickness of the paper material should not exceed 700 μm.

[0121] (5) The stiffness of the paper material is greater than or equal to 6 mN·m (mN·m represents millinewton-meter, which is the unit of stiffness). Preferably, the stiffness of the paper material is greater than or equal to 6.5 mN·m. More preferably, the stiffness of the paper material is greater than or equal to 9.5 mN·m. More preferably, the stiffness of the paper material is greater than or equal to 11 mN·m, for example, the stiffness of the paper material can be about 12.3 mN·m.

[0122] Stiffness refers to the ability of paper to resist bending deformation, and is an important indicator for measuring the rigidity or softness of paper. Stiffness can directly reflect the bending resistance of paper under stress, and high stiffness means that the paper is more rigid and less likely to deform, while low stiffness means that the paper is more flexible and more likely to bend.

[0123] (6) The paper includes board paper, tissue paper, art paper, book cover paper, or card paper.

[0124] When the shell is made of paper, the aerosol-generating article can further include a gas-proof layer covering the surface of the side wall of the shell to prevent the aerosol in the shell from leaking through the side wall of the shell. Of course, the shell can also be made of paper that can prevent gas penetration.

[0125] In some embodiments, referring to FIGS. 6-8, 10, and 11, the aerosol-generating article 2 further includes a fixing member 23 for defining part of the boundary of the airflow passage 25, and the aerosol body 21 is located between the fixing member 23 and the shell 22. The fixing member 23 includes a retaining portion 231 and a through hole 232, the retaining portion 231 covers part of the aerosol body 21 to prevent the aerosol body 21 from falling off the side wall of the shell 22, so that the aerosol body 21 can be retained on the side wall of the shell 22. The airflow passage 25 and the heating element 212 in the aerosol body 21 can be located on opposite sides of the aerosol substrate 211 in the aerosol body 21, so that the aerosol substrate 211 can not only be arranged to face the airflow passage 25, but also can be in fluid communication with the airflow passage 25 through the through hole 232, so that the aerosol generated by the aerosol substrate 211 can flow into the airflow passage 25 through the through hole 232.

[0126] The area of the through hole 232 can be smaller than the area of the aerosol body 21, so as to prevent the aerosol body 21 from falling off through the through hole 232. The shape of the through hole 232 can be different from the shape of the aerosol body 21, and the size of the through hole 232 in a certain direction can be smaller than the size of the aerosol body 21 in the direction, so as to prevent the aerosol body 21 from falling off through the through hole 232.

[0127] In the embodiments shown in FIGS. 7, 8, 10, and 11, the shape of the through hole 232 is different from the shape of the aerosol body 21. The through hole 232 includes two straight edges arranged opposite to each other and two arc-shaped edges arranged opposite to each other, and the distance between the two straight edges is smaller than the width, length, or diameter of the aerosol body 21. The arc-shaped edges can be circular arcs, and the diameter of the circular arcs can be greater than or equal to the width, length, or diameter of the aerosol body 21.

[0128] As an example, the fixing member 23 is configured to be able to absorb liquid, for example, the fixing member 23 can include cotton cloth. Thus, the fixing member 23 is able to absorb the aerosol condensate formed on its surface, is also able to absorb the excess liquid in the aerosol substrate 211 and reduce the condensation of aerosol in the aerosol substrate 211, can prevent the aerosol substrate 211 from being wetted after generating aerosol, and prevent the condensate from leaking out of the shell 22.

[0129] As an example, the fixing member 23 is made of paper material. When the shell 22 and the fixing member 23 are both made of paper material, the paper material made of both can have the same thickness, the same stiffness, the same color, the same composition and / or the same mass per square meter.

[0130] As an example, referring to FIGS. 6-8, the aerosol generating article 2 further includes a limiting member 24 disposed between the fixing member 23 and the side wall of the shell 22, the limiting member 24 is provided with a limiting hole 241, and at least part of the aerosol substrate 211 is located in the limiting hole 241, and preferably the heating element 212 in the aerosol body 21 corresponding to the aerosol substrate 211 is also disposed in the limiting hole 241. The limiting hole 241 is used to determine the position of the aerosol body 21 on the side wall of the shell 22. The limiting member 24 can have a plurality of limiting holes 241, and each limiting hole 241 can be provided with an aerosol substrate 211, and the relative positions between a plurality of aerosol bodies 21 and the distribution positions of a plurality of aerosol bodies 21 on the side wall of the shell 22 are determined by the plurality of limiting holes 241 on the limiting member 24.

[0131] The limiting member 24 can be made of paper material. When the shell 22 and the limiting member 24 are both made of paper material, the paper material made of both can have the same thickness, the same stiffness, the same color, the same composition and / or the same mass per square meter. Of course, the limiting member made of paper material is optional but not mandatory.

[0132] The limiting member 24 can be adhered to the side wall of the shell 22 by using an adhesive or double-sided tape, etc. The retaining portion 231 can be adhered to the limiting member 24 by using an adhesive or double-sided tape, etc.

[0133] Preferably, the limiting hole 241 on the limiting member 24 and the through hole 232 on the fixing member 23 are correspondingly arranged, and the limiting hole 241 and the through hole 232 can have a common center axis.

[0134] When the fixing member 23, the limiting member 24 and the shell 22 are all made of paper material, the preparation process of the aerosol generating article 2 can be:

[0135] First, a first paper sheet, a second paper sheet and a third paper sheet are obtained, a limiting hole 241 is formed on the second paper sheet so that the second paper sheet becomes a limiting member 24, and a through hole 232 is formed on the third paper sheet so that the third paper sheet becomes a fixing member 23; the first paper sheet, the second paper sheet and the third paper sheet can also be provided with positioning holes 27 for mechanical transmission and / or positioning alignment; wherein the first paper sheet has the largest area.

[0136] Then, the positioning holes 27 on the limiting member 24 and the positioning holes 27 on the first paper sheet are aligned, and the limiting member 24 is pasted on the first paper sheet.

[0137] Then, the aerosol body 21 is placed in the limiting hole 241.

[0138] Then, the positioning holes 27 on the fixing member 23 and the positioning holes 27 on the limiting member 24 are aligned, and the fixing member 23 is pasted on the limiting member 24, so that the aerosol body 21 is clamped between the fixing member 23 and the first paper sheet, and at least part of the aerosol substrate 211 faces the through hole 232.

[0139] Then, the first paper sheet is folded to form a shell 22 having at least three side walls. In the embodiment shown in FIGS. 5 and 10, the shell 22 formed by folding the paper sheet has four side walls. After the shell 22 is formed, the aerosol body 21 is retained on the preset side wall of the shell 22.

[0140] Referring to FIGS. 1-4, some embodiments of the present application provide an aerosol generating device 1, which includes a main body 12 and a receiving box 14 arranged in the main body 12, and further has an air inlet passage 16 in the main body 12 for fluid communication between the outside and the receiving box 14. The receiving box 14 can receive at least part of an aerosol generating article 2, which can be any of the aerosol generating articles 2 provided in the above embodiments or other aerosol generating articles 2. When the aerosol generating article 2 is arranged in the receiving box 14, air from the outside can enter the aerosol generating article 2 through the air inlet passage 16, and the aerosol generating article 2 can generate aerosol under the power provided by a power assembly in the aerosol generating device 1.

[0141] In some embodiments, the aerosol generating article 2 received in the receiving box 14 has a shell 22 made of paper material. The shell 22 made of paper material has a smaller hardness than the shell 22 made of plastic, so it is not convenient to sealably connect the shell 22 made of paper material to the receiving box 14 and / or the main body 12 by making the shell 22 made of paper material and the silica gel plug with a sealing function in interference fit, so as to achieve sealable communication between the air inlet passage 16 and the shell 22 made of paper material.

[0142] Based on this, in some embodiments, referring to FIG. 2, the aerosol generating device 1 includes a cover assembly 13 configured to be operable and based on the operation, the cover assembly 13 can expose or cover the storage box 14, and when the cover assembly 13 covers the storage box 14, there is no extrusion or interference between the cover assembly 13 and the shell 22 of the aerosol generating article 2, and a sealing connection is formed between the cover assembly 13 and the main body 12, so that when the cover assembly 13 covers the storage box, the airflow inside the storage box 14 can be prevented from being convected with the air outside through the cover assembly 13, so that the air outside mainly enters the storage box 14 through the air inlet channel 16. It should be noted that there is no extrusion or interference between the cover assembly 13 and the shell 22 of the aerosol generating article 2, including that there is no contact between the cover assembly 13 and the shell 22 of the aerosol generating article 2, or including that although there is contact between the cover assembly 13 and the shell 22 of the aerosol generating article 2, the interaction force therebetween is small, mainly for preventing the shell 22 from shaking in the storage box 14, and not causing the shell 22 to deform.

[0143] Therefore, the detection accuracy of the airflow sensor arranged inside the main body 12 for detecting puffing and in fluid communication with the air inlet channel and / or the storage box can be improved.

[0144] In the embodiments as shown in FIGS. 2-4, the main body 12 includes an outer shell 121, the storage box 14 is located inside the outer shell 121, a window 122 is opened on the side wall of the outer shell 121, when the window 122 is open, the aerosol generating article 2 can be placed in the storage box 14, or the aerosol generating article 2 can be taken out of the storage box 14. The aerosol generating device 1 further includes a fourth sealing ring 19, which can be retained on the cover assembly 13, or can be retained on the main body 12, or can be retained on the storage box 14, when the cover assembly 13 covers the window 122, the cover assembly 13 blocks the storage box 14, and at the same time, the fourth sealing ring 19 provides a seal between the cover assembly 13 and the main body 12 or the storage box 14.

[0145] In order to make the cover assembly 13 and the main body 12 or the storage box 14 keep close fit when the cover assembly 13 covers the window 122, so that the cover assembly 13 and the main body 12 or the storage box 14 keep sealed, and at the same time, the cover assembly 13 can be removed by operation to expose the window 122. In some embodiments, a first magnetic member 131 is arranged in the cover assembly 13, and a second magnetic member is arranged in the main body 12, when the cover assembly 13 covers the window 122, the magnetic attraction force between the first magnetic member 131 and the second magnetic member makes the cover assembly 13 and the main body 12 or the storage box 14 keep sealed connection.

[0146] The cover assembly 13 can be a flip cover, one side of which is hingedly connected to the main body 12, so that the cover assembly 13 can be flipped to shield or expose the window 122. Of course, the cover assembly 13 can also be a slide cover, or the cover assembly 13 can be detachably connected to the main body 12, so that the cover assembly 13 can be removed from the housing 121.

[0147] In some embodiments, referring to FIGS. 3 and 4, the receiving box 14 includes a first receiving cavity 141 for receiving the aerosol generating article 2 at least partially, a receiving wall surrounding the first receiving cavity 141 and defining a circumferential side wall of the first receiving cavity 141, and a bottom wall defining a bottom boundary of the first receiving cavity 141, the bottom wall being connected to the receiving wall and disposed opposite the opening of the receiving box 14, the bottom wall being configured to support the aerosol generating article 2, the aerosol generating article 2 being capable of entering the first receiving cavity 141 from the opening of the receiving box 14 and exiting the first receiving cavity 141 from the opening of the receiving box 14.

[0148] The aerosol generating device 1 further includes a third sealing ring 20 surrounding the periphery of the receiving wall of the receiving box 14 and being in close contact with the receiving wall of the receiving box 14. The third sealing ring 20 is disposed adjacent to the opening of the receiving box 14 and elastically abuts against the housing 121 to provide a seal between the housing 121 and the receiving wall of the receiving box 14, so as to prevent air flow inside the main body 12 from entering the first receiving cavity 141 from the opening of the receiving box 14 after the cover assembly 13 shields the window 122. The opening of the receiving box 14 is disposed toward the window 122.

[0149] In some embodiments, referring to FIGS. 3 and 4, the receiving box 14 includes an air inlet hole 143 fluidly connecting the first receiving cavity 141 and the air inlet passage 16, and the aerosol generating device 1 further includes a first sealing ring 17 disposed between the receiving box 14 and the main body 12 to provide a seal therebetween, so that air in the air inlet passage 16 mainly enters the receiving box 14, which helps to reduce the draw resistance.

[0150] Further, referring to FIGS. 3 and 4, the receiving box 14 has a second receiving cavity 142 therein, which is in fluid communication with the first receiving cavity 141 and is configured to receive an air flow sensor, and the first receiving cavity 141 and the second receiving cavity 142 are both in fluid communication with the air inlet passage 16 through the air inlet hole 143.

[0151] In some embodiments, referring to FIGS. 3 and 4, the aerosol generating device 1 further includes a mouthpiece assembly 15 and a second sealing ring 18, the receiving case 14 includes an air outlet hole 144 fluidly connecting the aerosol generating article 2 and the mouthpiece assembly 15, and the second sealing ring 18 is disposed between the receiving case 14 and the mouthpiece assembly 15 to provide a seal between the receiving case 14 and the mouthpiece assembly 15, so that the gas in the receiving case 14 mainly enters the mouthpiece assembly 15 through the air outlet hole 144, which helps to prevent aerosol leakage and prevents the gas in the main body 12 from entering the mouthpiece assembly 15, thereby improving the taste.

[0152] In some embodiments, referring to FIG. 12, the shell 22 has a substantially trapezoidal cross section. Specifically, the width of the side wall of the shell 22 disposed toward the window 122 is less than the inner width of the first receiving cavity 141 when the aerosol generating article 2 is received in the receiving case 14, so that the aerosol generating article 2 can be easily taken out of the receiving case 14 by using the gap between the side wall of the shell 22 and the receiving wall of the receiving case 14. At the same time, the width of the side wall of the shell 22 supported by the bottom wall of the receiving case 14 is greater than the width of the side wall of the shell 22 disposed toward the window 122, so as to limit the shaking range of the aerosol generating article 2 in the receiving case 14. Preferably, the width of the side wall of the shell 22 supported by the bottom wall of the receiving case 14 is substantially the same as the inner width of the receiving case 14.

[0153] In some embodiments, the aerosol generating article 2 further includes an extraction piece 28 disposed on the outer surface of the side wall of the shell 22, the extraction piece 28 includes a connecting portion 281 connected to the outer surface of the shell 22 and an operating portion 282 configured to be detached from the outer surface of the shell 22 and be flipped relative to the connecting portion 281, so as to be gripped by a user. The user can take the aerosol generating article 2 out of the receiving case 14 by operating the operating portion 282.

[0154] The extraction piece 28 can be a plastic sheet with a small thickness, or the extraction piece 28 can be a paper sheet with a small thickness.

[0155] In another embodiment, referring to FIG. 9, the housing 22 is made of paper, the housing 22 has an aerosol substrate 211 capable of generating aerosol inside the housing 22, and the housing 22 is substantially a square box shape, and the housing 22 includes a second port, and the aerosol generating article 2 further includes a sealing wall sealing the second port. The aerosol generating article 2 further includes a mouthpiece 30 fixed on the sealing wall 29 and in fluid communication with the airflow passage 25. Therefore, the aerosol generating article 2 provided in the embodiment can be different from the aerosol generating article 2 provided in any of the above embodiments. Of course, the aerosol generating article 2 provided in the embodiment can also be formed by adding the sealing wall 29 and the mouthpiece 30 to the aerosol generating article 2 provided in any of the above embodiments in which the housing 22 is made of paper.

[0156] The sealing wall 29 can be made of paper, and the paper used to make the sealing wall 29 can be the same as the paper used to make the housing 22. The square box-shaped housing 22 and the sealing wall 29 can be formed by folding the paper. The gas-proof layer can cover the sealing wall 29 and the side wall of the housing 22 to prevent the aerosol from leaking through the joint between the sealing wall 29 and the side wall of the housing 22. Alternatively, the sealing wall 29 is made of a gas-tight plug, and the plug is sealingly connected to the side wall of the housing 22.

[0157] The mouthpiece 30 can be cylindrical or oval, and can be held by the user's lips.

[0158] When the aerosol generating article 2 includes the mouthpiece 30, the aerosol generating device 1 can not include the mouthpiece assembly 15. The mouthpiece 30 of the aerosol generating article 2 can pass through the gas outlet hole 144 of the storage box 14, and the storage box 14 is sealingly connected to the main body 12, so that the gas in the storage box 14 but outside the aerosol generating article 2 cannot flow out of the storage box 14.

[0159] It should be noted that the preferred embodiments of the present application are described in the specification and drawings of the present application, but are not limited to the embodiments described in the specification. Further, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications shall fall within the scope of the claims of the present application.

Claims

1. An aerosol-generating article, characterized in that, The aerosol generating article comprises: a housing made of paper, the housing having an airflow passage therein; and a plurality of aerosol bodies capable of generating aerosol, distributed in the housing at intervals and in fluid communication with the airflow passage.

2. An aerosol-generating article according to claim 1, wherein, The housing is formed by folding the paper.

3. An aerosol-generating article according to claim 2, wherein, One side wall of the housing comprises a first connecting edge and a second connecting edge arranged at least partially overlapped, the first connecting edge and the second connecting edge being located on opposite sides of the paper when unfolded to form the housing.

4. An aerosol-generating article according to claim 1, wherein, The housing is formed by splicing a plurality of papers, or the housing is formed by splicing a plurality of folded papers.

5. An aerosol-generating article according to claim 1, wherein, A plurality of the aerosol bodies are held on the side wall of the housing.

6. An aerosol-generating article according to claim 5, wherein, The housing has a plurality of side walls, at least one of which is flat, and the aerosol bodies are all held on the same flat side wall in the housing.

7. An aerosol-generating article according to claim 5, wherein, The side wall comprises a first side wall and a second side wall arranged non-coplanarly, part of the aerosol bodies being held on the first side wall and part of the aerosol bodies being held on the second side wall.

8. An aerosol-generating article according to claim 7, wherein, The first side wall and the second side wall are both flat, and the first side wall and the second side wall are arranged oppositely or adjacently.

9. The aerosol-generating article according to claim 1, wherein, The housing has a substantially trapezoidal cross section or face.

10. An aerosol-generating article according to claim 1, wherein, The aerosol body comprises an aerosol substrate and a heating element, the aerosol substrate being arranged close to the airflow passage, and the heating element being used to heat the aerosol substrate to generate aerosol.

11. An aerosol-generating article according to claim 10, wherein, The heating element comprises a fixed portion, at least a part of the fixed portion being embedded in the side wall of the housing.

12. An aerosol-generating article according to claim 1, wherein, The aerosol generating article further comprises a fixing member for defining part of the boundary of the airflow passage, the aerosol body being located between the fixing member and the housing; wherein the fixing member comprises a holding portion and a through hole, the holding portion covering part of the aerosol body to hold the aerosol body on the side wall of the housing, and the aerosol substrate being in fluid communication with the airflow passage through the through hole.

13. An aerosol-generating article according to claim 12, wherein, The fixing member is made of paper.

14. An aerosol-generating article according to claim 12, wherein, The aerosol generating article further comprises a limiting member arranged between the fixing member and the side wall, the limiting member having a limiting hole therein, at least part of the aerosol substrate being located in the limiting hole.

15. An aerosol-generating article according to claim 14, wherein, The limiting member is made of paper.

16. An aerosol-generating article according to claim 14, wherein, The limiting member is bonded to the side wall of the housing; and / or The holding portion is bonded to the limiting member.

17. An aerosol-generating article according to claim 1, wherein, The housing has a positioning hole.

18. An aerosol-generating article according to claim 1, wherein, The housing comprises a first port and a gas permeable wall arranged in the first port, the gas permeable wall being configured to allow ambient air to enter the airflow passage; or The housing comprises an open first port configured to allow ambient air to enter the airflow passage; or The housing comprises an open second port configured to allow the gas in the airflow passage to flow out of the housing.

19. An aerosol-generating article according to claim 1, wherein, The aerosol generating article further comprises a gas impermeable layer arranged on the surface of the side wall of the housing; or The housing is made of gas impermeable paper.

20. An aerosol-generating article according to claim 1, wherein, The aerosol generating article further comprises an extraction member disposed on an outer surface of the side wall of the housing, the extraction member comprising a connecting portion connected to the outer surface of the housing and an operating portion configured to be detached from the outer surface of the housing and flipped relative to the connecting portion so as to be gripped by a user.

21. An aerosol-generating article according to any one of claims 1 to 20, wherein, The paper satisfies at least one of the following conditions: The mass of the paper per square meter is greater than or equal to 300 g; The thickness of the paper is between 400 μm and 700 μm; The stiffness of the paper is greater than or equal to 6 mN·m; The paper is white; The paper contains a flame retardant; and The paper comprises board paper, tissue paper, art paper, book cover paper or card paper.

22. An aerosol-generating device comprising: A cover assembly, a main body and a receiving box for receiving the aerosol generating article of any one of claims 1-21, the receiving box being disposed in the main body and the main body further having a gas inlet passage in fluid communication between the outside and the receiving box; The cover assembly is configured to be operated and based on the operation, the receiving box is exposed or covered, and when the cover assembly covers the receiving box, there is no interference between the cover assembly and the housing of the aerosol generating article, and the cover assembly forms a sealing connection with the main body or the receiving box.

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