Aerosol generating article and aerosol generating system

Abstract

Provided in the embodiments of the present application are an aerosol generating article and an aerosol generating system. The aerosol generating article comprises: a housing comprising an air intake end and an air output end, a first air channel and a second air channel being provided in the housing, and the first air channel and the second air channel being separately in communication with the air intake end and the air output end; and aerosol-forming matrixes which are held in the housing and comprise a first aerosol-forming matrix and a second aerosol-forming matrix, wherein volatile substances generated by the first aerosol-forming matrix and volatile substances generated by the second aerosol-forming matrix enter the first air channel and the second air channel, respectively.

Description

Aerosol generating products and aerosol generating systems

[0001] Cross-references to related documents

[0002] This application claims priority to the prior application with application number 202311865242.2 filed with the State Intellectual Property Office of China on December 29, 2023, entitled “Aerosol Generating Product and Aerosol Generating System”. The contents of the above-mentioned prior application are incorporated into this text by introduction. Technical Field

[0003] The embodiments of the present application relate to the technical field of heat-without-combustion aerosol generation, and in particular to an aerosol generating product and an aerosol generating system. Background Art

[0004] Smoking articles (eg, cigarettes, cigars, etc.) burn tobacco during use to produce tobacco smoke. Attempts have been made to replace these tobacco-burning articles by creating products that release compounds without combustion.

[0005] A typical tobacco product contains a continuously arranged smokable matrix. During inhalation, the smoke generated by the smokable matrix is ​​conducted to the mouthpiece through the same airway. However, the smoke easily condenses in the airway, forming condensate. As the condensate accumulates in the airway, it affects the smoke and flavor of the tobacco product, thereby reducing the user experience. Summary of the Invention

[0006] The present application provides an aerosol generating product and an aerosol generating system, which can ensure the taste.

[0007] One embodiment of the present application provides an aerosol-generating article, comprising:

[0008] A housing, comprising an air inlet and an air outlet, wherein a first air passage and a second air passage are provided in the housing, wherein the first air passage and the second air passage are independently connected to the air inlet and the air outlet respectively; and

[0009] an aerosol-forming substrate retained within the housing, the aerosol-forming substrate comprising a first aerosol-forming substrate and a second aerosol-forming substrate;

[0010] The volatile substances generated by the first aerosol-forming substrate and the volatile substances generated by the second aerosol-forming substrate enter the first airway and the second airway respectively.

[0011] As an example, the air inlet end includes a first air inlet and a second air inlet that are independent of each other, the first air inlet is connected to the first air duct, and the second air inlet is connected to the second air duct.

[0012] As an example, the air outlet includes a first air outlet and a second air outlet that are independent of each other, the first air outlet is connected to the first air channel, and the second air outlet is connected to the second air channel.

[0013] As an example, the housing includes a first housing and a second housing, the first housing and the second housing are sealingly connected to each other, and the first air channel and the second air channel are formed between the first housing and the second housing.

[0014] As an example, the first shell includes a first base, the second shell includes a second base spaced apart from the first base, and the shell further includes a first convex beam extending from the air inlet end to the air outlet end, the first convex beam connecting the first base and the second base;

[0015] The first air channel and the second air channel are located between the first base and the second base, and on opposite sides of the first convex beam.

[0016] As an example, one of the first shell and the second shell includes the first convex beam, and the other includes a first connecting wall arranged at the air inlet end and a second connecting wall arranged at the air outlet end, and the first convex beam connects the first connecting wall and the second connecting wall.

[0017] As an example, the shell further includes a second convex beam extending from the air inlet end to the air outlet end, the second convex beam connecting the first base and the second base, wherein the first air duct is located between the second convex beam and the first convex beam; and / or

[0018] The shell further includes a third convex beam extending from the air inlet end to the air outlet end, wherein the third convex beam connects the first base and the second base, wherein the second air channel is located between the third convex beam and the first convex beam.

[0019] As an example, one of the first shell and the second shell includes the second convex beam, and the other includes a third connecting wall, and the second convex beam interferes with the third connecting wall; and / or

[0020] One of the first shell and the second shell includes the third protruding beam, and the other includes a fourth connecting wall, and the third protruding beam interferes with the fourth connecting wall.

[0021] As an example, the convex beams are all provided on the first shell, and the second shell is constructed into a sheet with uniform thickness.

[0022] As an example, one of the first shell and the second shell has a first receiving groove that is at least partially offset from the first airway, and the first aerosol-forming substrate is at least partially received in the first receiving groove; and / or

[0023] One of the first shell and the second shell has a second receiving groove that is at least partially offset from the second air channel, and the second aerosol-forming substrate is at least partially received in the second receiving groove.

[0024] As an example, the aerosol-generating article further comprises a first heating element, wherein the first heating element is accommodated in the first receiving tank; and / or

[0025] The aerosol-generating article further comprises a second heating element received in the first receiving recess.

[0026] As an example, there are multiple first receiving tanks and multiple first aerosol-forming substrates, and the multiple first aerosol-forming substrates are arranged in a one-to-one correspondence with the multiple first receiving tanks; and / or

[0027] There are a plurality of the second receiving tanks and a plurality of the second aerosol-forming substrates, and the plurality of the second aerosol-forming substrates are arranged in a one-to-one correspondence with the plurality of the second receiving tanks.

[0028] As an example, the aerosol-generating article further comprises a heating element, at least part of which is disposed outside or inside the shell for heating the aerosol-generating substrate.

[0029] As an example, the heating element comprises a first heating element for heating the first aerosol-forming substrate, the first heating element being at least partially arranged in the first aerosol-forming substrate, or the first aerosol-forming substrate being at least partially arranged on the first heating element; and / or

[0030] The heating element comprises a second heating element for heating the second aerosol-forming substrate, the second heating element being at least partially disposed in the second aerosol-forming substrate or the second aerosol-forming substrate being at least partially disposed on the second heating element.

[0031] As an example, the shell includes a heat-insulating material, or a heat-insulating material is provided in the shell, and the thermal conductivity of the heat-insulating material is less than or equal to 40 W / (m·K);

[0032] The heat insulating material is located between the first heating element and the second heating element, or the first heating element and the second heating element are arranged at different positions on the heat insulating material.

[0033] As an example, the heating element includes a susceptor capable of generating heat in a changing magnetic field.

[0034] As an example, the first aerosol-forming substrate is configured in a sheet shape; and / or

[0035] the second aerosol-forming substrate is configured in sheet form; and / or

[0036] The housing is configured in a flat shape.

[0037] As an example, the first airway satisfies at least one of the following conditions:

[0038] having substantially the same ventilation cross-sectional area as the second airway;

[0039] In the thickness direction of the shell, the size of the first air channel is less than or equal to 0.5 mm;

[0040] In the width direction of the housing, a size of the first air channel is less than or equal to 10 mm;

[0041] The ventilation cross-sectional area is less than or equal to 4mm 2 ;or

[0042] It is a roughly straight airway.

[0043] As an example, the housing has a non-centrosymmetrical shape.

[0044] One embodiment of the present application provides an aerosol generating system, comprising the aerosol generating article as described above, and also comprising an aerosol generating device, wherein at least a portion of the aerosol generating article is received in the aerosol generating device, wherein the aerosol generating device is configured to provide energy to heat the aerosol-forming substrate.

[0045] The aerosol-generating article and aerosol-generating system described above include a housing and first and second aerosol-forming substrates retained within the housing. The housing has an air inlet and an air outlet, and the housing has a first air duct and a second air duct within the housing. The first air duct and the second air duct independently communicate with the air inlet and the air outlet, respectively. Volatile substances generated by the first aerosol-forming substrate and the volatile substances generated by the second aerosol-forming substrate enter the first air duct and the second air duct, respectively. By using the first and second air ducts to transmit the volatile substances generated by the first and second aerosol-forming substrates, respectively, condensate is prevented from accumulating in large quantities in one air duct, thereby effectively preventing condensate from affecting the production of volatile substances by the aerosol-forming substrate in communication with that air duct, thereby helping to ensure a good mouthfeel. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings. These exemplifications do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0047] FIG1 is a schematic diagram of an aerosol generating system provided by one embodiment;

[0048] FIG2 is a schematic diagram of an aerosol-generating article provided in one embodiment;

[0049] FIG3 is another schematic diagram of an aerosol-generating article provided in another embodiment;

[0050] FIG4 is a cross-sectional view of an aerosol-generating article provided in yet another embodiment;

[0051] FIG5 is an exploded schematic diagram of an aerosol-generating article provided in yet another embodiment;

[0052] FIG6 is a further decomposition diagram of FIG5;

[0053] FIG7 is a schematic diagram of FIG6 from another perspective;

[0054] FIG8 is an exploded schematic diagram of an aerosol-generating article provided in another embodiment;

[0055] FIG9 is a schematic diagram further decomposing FIG8;

[0056] FIG10 is another schematic diagram of an aerosol generating system provided by one embodiment;

[0057] In the figure: 1. Aerosol-generating article; 11. Aerosol-forming substrate; 111. First aerosol-forming substrate; 112. Second aerosol-forming substrate; 12. Housing; 121. First housing; 1211. First substrate; 1212. First connecting wall; 1213. Second connecting wall; 1214. Third connecting wall; 1215. Fourth connecting wall; 1216. First receiving groove; 1217. Second receiving groove; 122. Second housing; 1221. Second substrate; 123. Air inlet; 1231. First air inlet; 1232. Second air inlet; 124. Air outlet; 1241. First air outlet; 1242. Second air outlet; 125. First air duct; 126. Second air duct; 127. First convex beam; 128. Second convex beam; 129. Third convex beam; 13. Heating element; 131. First heating element; 132. Second heating element; 14. Anti-fouling structure; 2. Aerosol generating device; 21. Receiving chamber; 22. Suction nozzle; 23. Magnetic field generator; 24. Air hole. DETAILED DESCRIPTION

[0058] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the described embodiment is only a regional embodiment of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0059] The terms "first", "second" and "third" in this application are only used for descriptive purposes and cannot be understood as indicating or suggesting relative importance or implicitly indicating the quantity or order of the indicated technical features. In the embodiments of the present application, all directional indications (such as up, down, left, right, front, back ...) are only used to explain the relative position relationship or movement situation between the various components under a certain posture (as shown in the accompanying drawings). If the posture changes, the directional indication also changes accordingly. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or equipment comprising a series of steps or units is not limited to the steps or units listed, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or equipment.

[0060] References to "embodiments" herein mean that the features, structures, or characteristics described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0061] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be one or more intermediate elements in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0062] 1 , an embodiment of the present application provides an aerosol generating system, which includes an aerosol generating device and an aerosol generating article 1 . The aerosol generating device 2 is used to provide energy to enable the aerosol generating article 1 to generate aerosol.

[0063] 1 to 4 , an embodiment of the present application provides an aerosol-generating product 1 , which includes a shell 12 and an aerosol-forming substrate 11 retained in the shell 12 . The aerosol-forming substrate 11 can generate volatile substances, which can form an aerosol after combining with air.

[0064] In one embodiment, the aerosol-forming substrate 11 is capable of releasing volatile compounds that can form an aerosol when heated. In one embodiment, the aerosol-forming substrate 11 is capable of releasing volatile compounds that can form an aerosol at room temperature. In one embodiment, the aerosol-generating article 1 is removably connectable to the aerosol-generating device 2. The aerosol-generating article 1 may be disposable or reusable.

[0065] The aerosol-forming substrate 11 may comprise a solid aerosol-forming substrate. The solid aerosol-forming substrate may comprise a tobacco-containing material containing volatile tobacco flavour compounds that are released from the aerosol-forming substrate upon heating. The solid aerosol-forming substrate may comprise a non-tobacco material. The solid aerosol-forming substrate may comprise a tobacco-containing material as well as a non-tobacco material.

[0066] Aerosol forming matrix 11 can comprise liquid aerosol forming matrix. Liquid aerosol forming matrix can comprise liquid containing tobacco material containing volatile tobacco flavor components, can also be the liquid comprising non-tobacco material. Liquid aerosol forming matrix can comprise water, solvent, ethanol, plant extract, spices, flavoring agent or vitamin mixture etc., spices can comprise betel nut extract, menthol, peppermint, spearmint oil, various fruity fragrance components etc., but is not limited to this. Flavoring agent can comprise the component that can provide various fragrance or local flavor to the user. Vitamin mixture can be the mixture that is mixed with at least one of vitamin A, vitamin B, vitamin C and vitamin E, but is not limited to this.

[0067] In the embodiment shown in FIG1 , the aerosol-generating device 2 includes a receiving chamber 21, into which the aerosol-generating article 1 can be received. The aerosol-generating device 2 also includes a mouthpiece 22 connected to the receiving chamber 21. The mouthpiece 22 can be held between the lips of a user. The user inhales the aerosol generated by the aerosol-generating article 1 by sucking on the mouthpiece 22.

[0068] Referring to FIG. 1 , a housing 12 according to one embodiment of the present application includes an air inlet 123, an air outlet 124, and an air passage connecting the air inlet 123 and the air outlet 124. During inhalation, air flows into the interior of the housing 12 through the air inlet 123, then flows along the air passage within the housing 12, and finally flows out of the housing 12 through the air outlet 124. Volatile substances generated by the aerosol-forming substrate 11 can enter the air passage, combine with air there, and form an aerosol, which then flows along the air passage toward the air outlet 124.

[0069] In order to prevent the condensate formed by the condensation of aerosol from accumulating in the airway, the airway can have multiple airways and the multiple airways are independent of each other, so that one airway only transmits the aerosol formed based on part of the aerosol-forming matrix 11, and the aerosol formed by the remaining aerosol-forming matrix 11 is transmitted through other airways, thereby reducing the total amount of aerosol transmitted by a single airway, and then reducing the amount of condensate accumulated in the single airway. Therefore, it can prevent the condensate from affecting the aerosol-forming matrix 11 that has not yet produced volatile substances or can continue to produce volatile substances due to its large amount, and help ensure that the aerosol-forming matrix 11 is fully heated and produces volatile substances fully or in a layered manner as preset, thereby ensuring the taste.

[0070] Specifically, referring to FIG4 , the air passage includes at least a first air passage 125 and a second air passage 126. The first air passage 125 and the second air passage 126 are independently connected to the air inlet end 123 and the air outlet end 124 of the housing 12. The aerosol-forming substrate 11 includes at least a first aerosol-forming substrate 111 and a second aerosol-forming substrate 112. The volatile substances generated by the first aerosol-forming substrate 111 and the volatile substances generated by the second aerosol-forming substrate 112 enter the first air passage 125 and the second air passage 126, respectively. In other words, the first air passage 125 is capable of receiving and transmitting the volatile substances and aerosol generated by the first aerosol-forming substrate 111 to the air outlet end 124, and the second air passage 126 is capable of receiving and transmitting the volatile substances and aerosol generated by the second aerosol-forming substrate 112 to the air outlet end 124.

[0071] In one embodiment, the first aerosol-forming substrate 111 and the second aerosol-forming substrate 112 exist independently of each other, and in this embodiment, the first aerosol-forming substrate 111 and the second aerosol-forming substrate 112 can be exactly the same, or the first aerosol-forming substrate 111 and the second aerosol-forming substrate 112 can be different, for example, the two can have different flavors, different ingredients, different shapes or different sizes, etc.

[0072] It should be noted that, in other embodiments, the first aerosol-forming substrate and the second aerosol-forming substrate are not independent of each other, but are different parts of the same aerosol-forming substrate.

[0073] 2 , the air inlet end 123 of the housing 12 includes a first air inlet 1231 and a second air inlet 1232 that are independent of each other. Thus, the first air inlet 1231 and the second air inlet 1232 are spaced apart from each other. The first air inlet 1231 communicates with the first air passage 125, and the second air inlet 1232 communicates with the second air passage 1232. During inhalation, air enters the first air passage 125 and the second air passage 126 through the first air inlet 1231 and the second air inlet 1232, respectively.

[0074] It should be noted that, in other embodiments, the air inlet end of the shell includes a common air inlet, which is connected to the first air duct and the second air duct at the same time. During suction, the air enters the common air inlet and then splits into multiple paths and flows into the first air duct and the second air duct respectively.

[0075] In one embodiment, referring to Figure 3, the air outlet end 124 of the shell 12 includes a first air outlet 1241 and a second air outlet 1242 that are independent of each other, so the first air outlet 1241 and the second air outlet 1242 are spaced apart from each other, wherein the first air outlet 1241 is connected to the first air channel 125, and the second air outlet 1242 is connected to the second air channel 126. During inhalation, the aerosol in the first air channel 125 flows out of the shell 12 through the first air outlet 1241, and the aerosol in the second air channel 126 flows out of the shell 12 through the second air outlet 1242.

[0076] It should be noted that, in other embodiments, the air outlet end of the shell includes a common air outlet, which is connected to the first air duct and the second air duct at the same time. During inhalation, the aerosol in the first air duct flows out of the shell through the common air outlet, and the aerosol in the second air duct flows out of the shell through the common air outlet.

[0077] In order to facilitate the placement of the aerosol-forming substrate 11 within the housing 12 and the arrangement of the mutually independent first air channel 125 and second air channel 126 within the housing 12, the housing 12 may be divided into at least two parts. Specifically, the housing 12 includes a first housing 121 and a second housing 122, which are connected to each other, and the first air channel 125 and the second air channel 126 are formed between the first housing 121 and the second housing 122. In order to ensure that the gas in the first air channel 125 and the second air channel 126 does not leak through the connection between the first housing 121 and the second housing 122, the connection between the first housing 121 and the second housing 122 may be a sealed connection, for example, a sealing adhesive may be provided between the first housing 121 and the second housing 122, or the first housing 121 and the second housing 122 may be tightly fitted or have an interference fit.

[0078] In one embodiment, referring to Figures 4-9 , the first housing 121 includes a first base 1211, the second housing 122 includes a second base 1221 spaced apart from the first base 1211, and the first air channel 125 and the second air channel 126 are located between the first base 1211 and the second base 1221. The housing 12 also includes a first convex beam 127 extending from the air inlet end 125 to the air outlet end 126. The first air channel 125 and the second air channel 126 are located on opposite sides of the first convex beam 127. The first convex beam 127 separates and isolates the first and second air channels 125, 126 from each other, preventing the airflows in the first and second air channels 125, 126 from intersecting. The first convex beam 127 may partially define the boundary of the first air channel 125. The first convex beam 127 may also partially define the boundary of the second air channel 126.

[0079] In one embodiment, referring to Figures 4 and 7-9, the housing 12 further includes a second convex beam 128 extending from the air inlet end 123 to the air outlet end 124. The second convex beam 128 connects the first base 1211 and the second base 1221. The first air channel 125 is located between the second convex beam 128 and the first convex beam 127. The second convex beam 128 may define a portion of the boundary of the first air channel 125. The second convex beam 128 and the first convex beam 127 may be parallel to each other.

[0080] In one embodiment, referring to Figures 4 and 7-9, the housing 12 further includes a third convex beam 129 extending from the air inlet end 123 to the air outlet end 124. The third convex beam 129 connects the first base 1211 and the second base 1221. The second air passage 126 is located between the third convex beam 129 and the first convex beam 127. The third convex beam 129 may partially define the boundary of the second air passage 126. The third convex beam 129 and the first convex beam 127 may be parallel to each other.

[0081] In one embodiment, referring to Figures 5 to 7, the shell 12 also includes a third connecting wall 1214. After the first shell 121 and the second shell 122 are connected to each other, the second protruding beam 128 can interfere with the third connecting wall 1214 in the width direction of the shell 12. For example, the second protruding beam 128 can be squeezed or interference fit with the third connecting wall 1214 in the width direction of the shell 12. The interaction force generated by the interference helps to maintain the connection between the first shell 121 and the second shell 122.

[0082] In one embodiment, the third connecting wall 1214 extends from the air inlet end 123 to the air outlet end 124 , connects the first base 1211 and the second base 1221 , and the first air channel 125 is located between the third connecting wall 1214 and the first convex beam 127 .

[0083] In one embodiment, referring to Figures 5 to 7, the shell 12 also includes a fourth connecting wall 1215. After the first shell 121 and the second shell 122 are connected to each other, the third protruding beam 129 can interfere with the fourth connecting wall 1215 in the width direction of the shell 12. For example, the third protruding beam 129 can be squeezed or interference fit with the fourth connecting wall 1215 in the width direction of the shell 12. The interaction force generated by the interference helps to maintain the connection between the first shell 121 and the second shell 122.

[0084] In one embodiment, the fourth connecting wall 1215 extends from the air inlet end 123 to the air outlet end 124 , connects the first base 1211 and the second base 1221 , and the second air channel 126 is located between the fourth connecting wall 1215 and the first convex beam 127 .

[0085] In one embodiment, the housing 12 includes both a second convex beam 128 and a fourth connecting wall 1215. One of the first housing 121 and the second housing 122 includes the second convex beam 128, and the other includes the fourth connecting wall 1215. In the width direction of the housing 12, the second convex beam 128 and the fourth connecting wall 1215 are spaced apart from each other and are located on opposite sides of the first convex beam 127.

[0086] Alternatively, one of the first shell 121 and the second shell 122 includes both the second convex beam 128 and the fourth connecting wall 1215 , and the second convex beam 128 and the fourth connecting wall 1215 are located on opposite sides of the first convex beam 127 .

[0087] In one embodiment, the housing 12 includes both a third protruding beam 129 and a third connecting wall 1214 .

[0088] Among them, one of the first shell 121 and the second shell 122 includes a third protruding beam 129, and the other includes a third connecting wall 1214. In the width direction of the shell 12, the third protruding beam 129 and the third connecting wall 1214 are spaced from each other, and the two are located on opposite sides of the first protruding beam 127.

[0089] Alternatively, one of the first shell 121 and the second shell 122 includes both the third convex beam 129 and the third connecting wall 1214 , and the third convex beam 129 and the third connecting wall 1214 are located on opposite sides of the first convex beam 127 .

[0090] In one embodiment, the housing 121 includes a first convex beam 127, a second convex beam 18, and a third convex beam 129. The first convex beam 127, the second convex beam 18, and the third convex beam 129 are spaced apart in the width direction of the housing 12. The first convex beam 127, the second convex beam 18, and the third convex beam 129 can be arranged parallel to each other in pairs.

[0091] In one embodiment, the housing 121 includes a third connecting wall 1214 and a fourth connecting wall 1215. The fourth connecting wall 1215 is spaced apart from the third connecting wall 1214 in the width direction of the housing 12. The fourth connecting wall 1215 can be arranged parallel to the third connecting wall 1214.

[0092] In the embodiment shown in Figures 8 and 9, the first convex beam 127 is a component of the first housing 121. The first convex beam 127 can be vertically connected to the first base 1211. The first convex beam 127 can be integrally formed with the first base 1211, such as by integral injection molding. After the first housing 121 and the second housing 122 are sealed together, the first convex beam 127 tightly abuts the second base 1221, or a sealing adhesive is provided between the first convex beam 127 and the second base 1221, thereby forming a sealed connection between the first convex beam 127 and the second base 1221.

[0093] In the embodiment shown in Figures 4-7, the first convex beam 127 is a component of the second housing 122. The first convex beam 127 can be vertically connected to the second base 1221. The first convex beam 127 can be integrally formed with the second base 1221, such as by integral injection molding. After the first housing 121 and the second housing 122 are sealed together, the first convex beam 127 tightly abuts the first base 1211, or a sealing adhesive is provided between the first convex beam 127 and the first base 1211, thereby achieving a sealed connection between the first convex beam 127 and the first base 1211.

[0094] 5 and 6 , the first housing 121 further includes a first connecting wall 1212 disposed at the air inlet end 123 and a second connecting wall 1213 disposed at the air outlet end 124. The first connecting wall 1212 and the second connecting wall 1213 may be perpendicularly connected to the first base 1211 and may be integrally formed with the first base 1211. A first convex beam 127 connects the first connecting wall 1212 and the second connecting wall 1213 and may interfere with both the first connecting wall 1212 and the second connecting wall 1213. The interaction force generated by the interference helps maintain the connection between the first housing 121 and the second housing 122. The interference between the first convex beam 127 and the first connecting wall 1212 and the second connecting wall 1214 helps to airtightly isolate the first air duct 125 from the second air duct 126. The first connecting wall 1212 and the second connecting wall 1213 may be disposed perpendicular to the first convex beam 127.

[0095] The air inlet may be opened on the first connecting wall 1212 , and the air outlet may be opened on the second connecting wall 1213 .

[0096] In the embodiment shown in Figures 5 and 6, the third connecting wall 1214 and the fourth connecting wall 1215 are components of the first shell 121, and the third connecting wall 1214 and the fourth connecting wall 1215 can be vertically connected to the first base 1211. The third connecting wall 1214 and the fourth connecting wall 1215 can be integrally processed and molded with the first base 1211, such as integral injection molding; the second convex beam 128 and the third convex beam 129 are components of the second shell 122, and the second convex beam 128 and the third convex beam 129 can be vertically connected to the second base 1221. The second convex beam 128 and the third convex beam 129 can be integrally processed and molded with the second base 1221, such as integral injection molding.

[0097] The third connecting wall 1214 and the fourth connecting wall 1215 are spaced apart from each other in the width direction of the shell 12, and the first shell 121 may have a receiving space between the third connecting wall 1213 and the fourth connecting wall 1214. After the first shell 121 and the second shell 122 are connected to each other, at least a part of the second shell 122 is received in the receiving space of the first shell 121.

[0098] After the first shell 121 and the second shell 122 are connected to each other, the second convex beam 128 and the third convex beam 129 can abut against and support the first base 1211. The second convex beam 128 and the third convex beam 129 can be located between the third connecting wall 1214 and the fourth connecting wall 1215.

[0099] It should be noted that, in other embodiments, the third connecting wall and / or the fourth connecting wall may be a component of the second shell, and the second convex beam and / or the third convex beam may be a component of the first shell. Alternatively, in other embodiments, the third connecting wall, the fourth connecting wall, the second convex beam and / or the third convex beam may be independent of the first shell and the second shell, and may be connected to the first shell and the second shell by bonding, riveting, or interlocking.

[0100] The first aerosol-forming substrate 111 and the second aerosol-forming substrate 121 may be an assembly of particles, strips, or filaments, and thus have a large number of pores that allow airflow. In one embodiment, at least a portion of the first air channel 125 passes through the interior of the first aerosol-forming substrate 111. Along the direction of airflow in the first air channel 125, at least a portion of the first air channel 125 may be coaxial with the first aerosol-forming substrate 111. In one embodiment, at least a portion of the second air channel 126 passes through the interior of the second aerosol-forming substrate 112. At least a portion of the second air channel 126 may be coaxial with the second aerosol-forming substrate 112.

[0101] In one embodiment, referring to FIG. 4 , the housing 12 includes a first receiving groove 1216. At least a portion of the first receiving groove 1216 is offset from the first air channel 125, such that, along the direction of airflow in the first air channel 125, the central axis of the first air channel 125 is offset from the central axis of the first receiving groove 1216. The first aerosol-forming substrate 111 is at least partially received in the first receiving groove 1216. The first receiving groove 1216 prevents the first aerosol-forming substrate 111 and its residue from falling out of the housing 12. The first receiving groove 1216 positions the first aerosol-forming substrate 111 and prevents the first aerosol-forming substrate 111 from shifting within the housing 12.

[0102] In one embodiment, referring to FIG. 4 , the housing 12 includes a second receiving groove 1217. At least a portion of the second receiving groove 1217 is offset from the second air channel 126, such that, along the direction of airflow in the second air channel 126, the central axis of the second air channel 126 is offset from the central axis of the second receiving groove 1217. The second aerosol-forming substrate 112 is at least partially received in the second receiving groove 1217. The second receiving groove 1217 prevents the first aerosol-forming substrate 111 and its residue from falling out of the housing 12. The second receiving groove 1217 positions the second aerosol-forming substrate 112 and prevents the second aerosol-forming substrate 112 from shifting within the housing 12.

[0103] The first receiving groove 1216 and the second receiving groove 1217 may both be provided on the first housing 121. The first receiving groove 1216 and the second receiving groove 1217 may both be provided on the second housing 122. The first receiving groove 1216 may be provided on the first housing 121, and the second receiving groove 1217 may be provided on the second housing 122. Only the first receiving groove 1216 may be provided, i.e. the second aerosol-forming substrate 112 may not be retained in the housing 12 via the second receiving groove 1217. Only the second receiving groove 1217 may be provided, i.e. the first aerosol-forming substrate 111 may not be retained in the housing 12 via the first receiving groove 1216.

[0104] In one embodiment, referring to FIG. 4 , FIG. 7 and FIG. 9 , the aerosol-generating article 1 further comprises a heating element 13 , at least part of which is disposed outside or inside the shell 12 for heating the aerosol-generating substrate 11 .

[0105] The first aerosol-forming substrate 111 and the second aerosol-forming substrate 112 may be heated simultaneously by the same heating element 13 so that when the heating element 13 is operated, the first aerosol-forming substrate 111 and the second aerosol-forming substrate 112 can operate simultaneously and produce volatile substances.

[0106] Alternatively, the heating element 13 may comprise multiple parts to heat the first aerosol-forming substrate 111 and the second aerosol-forming substrate 112 separately, so that the first aerosol-forming substrate 111 and the second aerosol-forming substrate 112 can work simultaneously, sequentially or alternately.

[0107] Specifically, the heating element 13 may include a first heating element 131 and a first heating element 132 primarily for heating the first aerosol-forming substrate 111. The first heating element 131 may be spaced apart from the first aerosol-forming substrate 111, thereby indirectly heating the first aerosol-forming substrate 111. At least a portion of the first heating element 131 may be disposed within the first aerosol-forming substrate 111, thereby heating the first aerosol-forming substrate 111 within the first aerosol-forming substrate 111. At least a portion of the first aerosol-forming substrate 111 may be disposed on the first heating element 131, such that the first heating element 131 is in contact with the first aerosol-forming substrate 111 and heats the first aerosol-forming substrate 111 from the outside of the first aerosol-forming substrate 111.

[0108] The first heating element 131 may constitute at least a partial carrier of the first aerosol-forming substrate 111 , capable of supporting at least part of the first aerosol-forming substrate 111 , for example the first aerosol-forming substrate 111 may be coated on the first heating element 131 .

[0109] The heating element 13 may include a second heating element 132, which is primarily used to heat the second aerosol-forming substrate 112. The second heating element 132 may be spaced apart from the second aerosol-forming substrate 112, thereby indirectly heating the second aerosol-forming substrate 112. At least a portion of the second heating element 132 may be disposed within the second aerosol-forming substrate 112, thereby heating the second aerosol-forming substrate 112 within the interior of the second aerosol-forming substrate 112. At least a portion of the second aerosol-forming substrate 112 may be disposed on the second heating element 132, such that the second heating element 132 is able to contact the second aerosol-forming substrate 112 and heat the second aerosol-forming substrate 112 at the exterior of the second aerosol-forming substrate 112.

[0110] The second heating element 132 may constitute at least a partial carrier for the second aerosol-forming substrate 112 , being capable of supporting at least a portion of the second aerosol-forming substrate 132 , for example the second aerosol-forming substrate 112 may be coated on the second heating element 132 .

[0111] In one embodiment, at least a portion of the first heating element 131 is accommodated in the first accommodation groove 1216 . In one embodiment, at least a portion of the second heating element 132 is accommodated in the second accommodation groove 1217 .

[0112] In one embodiment, the housing 12 includes a thermal insulation material, or a thermal insulation material is provided in the housing 12. The thermal insulation material refers to a material having a thermal conductivity of less than or equal to 40 W / (m·K) at 23°C and a relative humidity of 50%. Preferably, the thermal conductivity of the thermal insulation material used in this application can be less than or equal to 10 W / (m·K), for example, less than or equal to 1 W / (m·K). For example, the thermal insulation material includes, but is not limited to, at least one of: PAEK-based materials, PI materials, PBI materials, glass fiber, glass felt, ceramics, or silica. Among them, AEK-based materials include PEEK, PEKK, PEKEKK, or PEK materials.

[0113] In order to reduce the mutual influence between the first aerosol-forming substrate 111 and the second aerosol-forming substrate 112 during operation, a thermal insulation material is provided between the first aerosol-forming substrate 111 and the second aerosol-forming substrate 112. For example, at least a portion of the first aerosol-forming substrate 111 and at least a portion of the second aerosol-forming substrate 112 are respectively retained in a first receiving groove 1216 and a second receiving groove 1217 of a first housing 121, wherein the first housing 121 is made of a thermal insulation material.

[0114] In order to reduce the effect of the first heating element 131 on the second aerosol-forming substrate 112 during operation, and to reduce the effect of the second heating element 132 on the first aerosol-forming substrate 111 during operation, a thermal insulation material may be provided between the first heating element 131 and the second heating element 132. The provision of thermal insulation material between the first heating element 131 and the second heating element 132 includes: the first heating element 131 and the second heating element 132 are separated by the thermal insulation material, or the first heating element 131 and the second heating element 132 are provided at different locations on the thermal insulation material. The provision of the first heating element 131 and the second heating element 132 at different locations on the thermal insulation material includes: the first heating element 131 and the second heating element 132 are provided at different locations on the same thermal insulation material, or the first heating element 131 and the second heating element 132 are provided at different locations on the thermal insulation material.

[0115] In one embodiment, the first heating element 131 and the second heating element 132 are respectively held in the first receiving groove 1216 and the second receiving groove 1217 of the first shell 121 , wherein the first shell 121 is made of a heat-insulating material.

[0116] In one embodiment, referring to Figures 5 to 9, there are multiple first aerosol-forming substrates 111, and the multiple first aerosol-forming substrates 111 can be spaced apart from each other in pairs. There can be a heat-insulating material between any two first aerosol-forming substrates 111, or any two first aerosol-forming substrates 111 can be arranged at different positions of the heat-insulating material.

[0117] There may be a plurality of first receiving tanks 1216 , and a plurality of first aerosol-forming substrates 111 may be arranged in a one-to-one correspondence with the plurality of first receiving tanks 1216 , so that each first receiving tank 1216 can accommodate a first aerosol-forming substrate 111 .

[0118] There may be a plurality of first heating elements 131, and the plurality of first aerosol-forming substrates 111 may be provided in a one-to-one correspondence with the plurality of first heating elements 131, so that each first heating element 131 can heat only one first aerosol-forming substrate 111. A heat insulating material may be provided between any two first heating elements 131, or any two first heating elements 131 may be provided at different positions on the heat insulating material.

[0119] In one embodiment, referring to Figures 5 to 9, there are multiple second aerosol-forming substrates 112, and the multiple second aerosol-forming substrates 112 can be spaced apart from each other in pairs. There can be a heat-insulating material between any two second aerosol-forming substrates 112, or any two second aerosol-forming substrates 112 can be set at different positions of the heat-insulating material.

[0120] There may be a plurality of second receiving grooves 1217 , and a plurality of second aerosol-forming substrates 112 may be arranged in a one-to-one correspondence with the plurality of second receiving grooves 1217 , so that each second receiving groove 1217 can accommodate a second aerosol-forming substrate 112 .

[0121] There may be a plurality of second heating elements 132, and the plurality of second aerosol-forming substrates 112 may be provided in a one-to-one correspondence with the plurality of second heating elements 132, so that each second heating element 132 can heat only one second aerosol-forming substrate 112. Insulating material may be provided between any two second heating elements 132, or any two second heating elements 132 may be provided at different locations on the insulating material.

[0122] In one embodiment, the sum of the number of first aerosol-forming substrates 111 and second aerosol-forming substrates 112 equals the total number of puffs designed for the aerosol-generating article 1. For example, if the total number of puffs designed for the aerosol-generating article 1 is six, the sum of the number of first aerosol-forming substrates 111 and second aerosol-forming substrates 112 may equal six. The aerosol formed by the volatile substances generated by a single first aerosol-forming substrate 111 or a single second aerosol-forming substrate 112 can be configured to meet the requirements of a single puff. Therefore, heating each first aerosol-forming substrate 111 and each second aerosol-forming substrate 112 independently in sequence can ensure consistent fullness with each puff.

[0123] The number of first aerosol-forming substrates 111 and the number of second aerosol-forming substrates 112 may be equal, or may be unequal.

[0124] It should be noted that in other embodiments, multiple first aerosol-forming substrates may be heated simultaneously to cause the multiple first aerosol-forming substrates to simultaneously generate volatile substances, or at least one first aerosol-forming substrate and at least one second aerosol-forming substrate may be heated simultaneously.

[0125] In one embodiment, the heating element 13 includes a sensor capable of generating heat in a changing magnetic field. Therefore, there is no need to use wires to electrically connect the heating element 13 in the aerosol generating product 1 and the power supply component in the aerosol generating device 2, which helps to remove the aerosol generating product 1 from the aerosol generating device 2 and replace it with a new aerosol generating product 1.

[0126] The susceptor may comprise metal or carbon. In one embodiment, the susceptor may comprise a ferromagnetic material, such as ferrite, ferromagnetic steel, or stainless steel. In one embodiment, the susceptor comprises a nickel-iron alloy. In one embodiment, the susceptor comprises 400 series stainless steel, including 410, 420, or 430 grade stainless steel.

[0127] The first heating element 131 may include a susceptor, and the second heating element 132 may include a susceptor. The first heating element 131 and the second heating element 132 may be identical, for example, they may have the same material, the same resistivity, the same magnetic permeability, or the same size. Of course, the first heating element 131 and the second heating element 132 may be different.

[0128] In this regard, referring to FIG. 10 , the aerosol generating device 2 includes a magnetic field generator 23. The magnetic field generator 23 is electrically connected to a power supply assembly in the aerosol generating device 2. The power supply assembly is configured to provide a varying current to the magnetic field generator 23, so that the magnetic field generator 23 generates a varying magnetic field. In one embodiment, the magnetic field generator 23 is capable of generating a varying magnetic field between 1 and 30 MHz, for example, between 2 and 10 MHz, and for example, between 5 and 7 MHz.

[0129] When the aerosol-generating article 1 is coupled to the receiving chamber 21 of the aerosol-generating device 2 , the corresponding susceptors in the aerosol-generating article 1 are within the magnetic field coverage of the corresponding magnetic field generator 23 .

[0130] In one embodiment, the magnetic field generator 23 comprises a helical coil. In the embodiment shown in FIG10 , the magnetic field generator 23 comprises a disc coil.

[0131] In one embodiment, referring to FIG. 10 , there are multiple magnetic field generators 23 , and the multiple magnetic field generators 23 are arranged in a one-to-one correspondence with the first heating element 131 and the second heating element 132 , so that when one magnetic field generator 23 generates a changing magnetic field, only one heating element can generate heat.

[0132] In order to reduce processing costs, referring to Figures 8 and 9, the first shell 121 or the second shell 122 is constructed into a sheet with uniform thickness. For example, the second shell 122 is constructed into a sheet with uniform thickness. The above-mentioned accommodating grooves, convex beams, air ducts or connecting walls are all formed on the first shell 121, so that only a more complex mold design is required for the first shell 121, thereby reducing the mold opening cost.

[0133] It should be noted that the configuration of the first shell 121 or the second shell 122 as a sheet with uniform thickness is optional but not mandatory. In the embodiment shown in FIG5-7 , the first receiving groove 1216 and the second receiving groove 1217 are formed on the first base 1211 of the first shell 121, thereby retaining the first aerosol-forming substrate 111 and the second aerosol-forming substrate 112 on the first shell 121. The first convex beam 127, the second convex beam 128, and the third convex beam 129 are formed on the second base 1221 of the second shell 122, thereby forming the first air channel 125 and the second air channel 127 on the second shell 122. The provision of the convex beams on the second base 1221 helps to increase the strength of the second base 1221 and prevents deformation of the second shell 122 during the assembly of the first and second shells 121, 122.

[0134] In one embodiment, as shown in Figures 2 and 3 , the housing 12 is configured to be flat, with its width being greater than twice its thickness. As shown in Figures 6 to 9 , the first aerosol-forming substrate 111 and the second aerosol-forming substrate 112 may be configured to be sheet-shaped to reduce the thickness of the housing 12.

[0135] In one embodiment, as shown in Figures 2 and 3 , the housing 12 has a non-centrally symmetrical shape, and the orientation of the housing 12 for assembly into the aerosol generating device 2 is determined by the non-centrally symmetrical shape of the housing 12. In the embodiment shown in Figures 2 and 3 , the housing 12 has a foolproof structure 14. The foolproof structure 14 can make the housing 12 roughly rectangular with one corner missing, or can make the housing 12 have another non-centrally symmetrical shape.

[0136] In order to ensure that the aerosol in the first airway 125 is not excessively diluted when the first aerosol-forming substrate 111 is in operation and that the concentration of the aerosol in the first airway 125 meets the preset requirements, the first airway 125 can have a smaller ventilation volume. Specifically, in one example, the ventilation cross-sectional area of ​​the first airway 125 is less than or equal to 4 mm. 2 , for example, about 2.2 mm 2 In one example, in the thickness direction of the shell 12, the size of the first air channel 125 is less than or equal to 0.5 mm, for example, about 0.35 mm; in one example, in the width direction of the shell 12, the size of the first air channel 125 is less than or equal to 10 mm, for example, about 6.3 mm. In the embodiments shown in Figures 7 and 9, in the thickness direction of the shell 12, the size of the first air channel 125 is related to the depth of the protruding beam toward the first shell 121 or the second shell 122; in the width direction of the shell 12, the size of the first air channel 125 is related to the distance between two adjacent protruding beams. The ventilation cross-sectional area of ​​the first air channel 125 is related to the size of the first air channel 125 in the width direction of the shell 12 and the thickness direction of the shell 12.

[0137] The second air passage 126 may have substantially the same size as the first air passage 125 , or the second air passage 126 may have substantially the same ventilation cross-sectional area as the first air passage 125 .

[0138] In order to prevent the aerosol from condensing in the first air channel 125 to form condensate, the first air channel 125 can be set to be a roughly straight air channel, or the first air channel 125 can be set to be an air channel with uniform size in the width direction of the shell 12, or the first air channel 125 can be set to be an air channel with uniform size in the thickness direction of the shell 12.

[0139] When the air inlet end 123 of the housing 12 has a first air inlet 1231 and a second air inlet 1232 that are independent of each other, the aerosol generating device 2 can be provided with two independent air holes. The two air holes 24 are provided in a one-to-one correspondence with the first air inlet 1231 and the second air inlet 1232. External air enters the aerosol generating device 2 through the two air holes 24, and then independently enters the first air inlet 1231 and the second air inlet 1232.

[0140] The above-mentioned aerosol-generating product 1 and aerosol-generating system include a shell 12 and a first aerosol-forming substrate 111 and a second aerosol-forming substrate 112 retained inside the shell 12. The shell 12 has an air inlet end 123 and an air outlet end 124, and the shell 12 has a first air duct 125 and a second air duct 126 inside. The first air duct 125 and the second air duct 126 are independently connected to the air inlet end 123 and the air outlet end 124 respectively. The volatile substances generated by the first aerosol-forming substrate 111 and the volatile substances generated by the second aerosol-forming substrate 112 enter the first air duct 125 and the second air duct 126 respectively. By using the first air channel 125 and the second air channel 126 to respectively conduct the volatile substances produced by the first aerosol-forming substrate 111 and the second aerosol-forming substrate 112, it is possible to prevent condensation from accumulating in large quantities in one air channel, thereby effectively preventing the condensation from clogging the air channel and affecting the production of volatile substances by the aerosol-forming substrate 11 connected to the air channel. Therefore, it helps to ensure the taste and prevent the air channel from being blocked.

[0141] It should be noted that the specification and drawings of this application provide preferred embodiments of the present application, but are not limited to the embodiments described in this specification. Furthermore, it is possible for a person skilled in the art to make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the claims attached to this application.

Claims

1. An aerosol-generating article, characterized in that, include: A housing, comprising an air inlet and an air outlet, wherein the housing has a first air passage and a second air passage, wherein the first air passage and the second air passage are independently connected to the air inlet and the air outlet respectively; and an aerosol-forming substrate retained within the housing, the aerosol-forming substrate comprising a first aerosol-forming substrate and a second aerosol-forming substrate; The volatile substances generated by the first aerosol-forming substrate and the volatile substances generated by the second aerosol-forming substrate enter the first airway and the second airway respectively.

2. The aerosol-generating article according to claim 1, wherein, The air inlet end includes a first air inlet and a second air inlet that are independent of each other, the first air inlet is connected to the first air channel, and the second air inlet is connected to the second air channel.

3. The aerosol-generating article according to claim 1, wherein The air outlet end includes a first air outlet and a second air outlet that are independent of each other, the first air outlet is connected to the first air channel, and the second air outlet is connected to the second air channel.

4. The aerosol-generating article according to claim 1, wherein, The housing includes a first housing and a second housing, the first housing and the second housing are sealingly connected to each other, and the first air passage and the second air passage are formed between the first housing and the second housing.

5. The aerosol-generating article according to claim 4, wherein, The first shell includes a first base, the second shell includes a second base spaced apart from the first base, the shell further includes a first convex beam extending from the air inlet end to the air outlet end, the first convex beam connecting the first base and the second base; The first air channel and the second air channel are located between the first substrate and the second substrate and on opposite sides of the first convex beam.

6. The aerosol-generating article according to claim 5, wherein One of the first shell and the second shell includes the first convex beam, and the other includes a first connecting wall arranged at the air inlet end and a second connecting wall arranged at the air outlet end, and the first convex beam connects the first connecting wall and the second connecting wall.

7. The aerosol-generating article according to claim 5, wherein, The housing further comprises a second convex beam extending from the air inlet end to the air outlet end, the second convex beam connecting the first substrate and the second substrate, wherein the first air passage is located between the second convex beam and the first convex beam; and / or The shell further includes a third convex beam extending from the air inlet end to the air outlet end, the third convex beam connecting the first base body and the second base body, wherein the second air passage is located between the third convex beam and the first convex beam.

8. The aerosol-generating article according to claim 7, wherein, One of the first shell and the second shell includes the second convex beam, and the other includes a third connecting wall, and the second convex beam interferes with the third connecting wall; and / or One of the first shell and the second shell includes the third protruding beam, and the other includes a fourth connecting wall, and the third protruding beam interferes with the fourth connecting wall.

9. The aerosol-generating article according to claim 7, wherein, The convex beams are all arranged on the first shell, and the second shell is constructed in a sheet shape with uniform thickness.

10. The aerosol-generating article according to claim 4, wherein, One of the first shell and the second shell has a first receiving groove at least partially offset from the first airway, and the first aerosol-forming substrate is at least partially received in the first receiving groove; and / or One of the first housing and the second housing has a second receiving groove that is at least partially offset from the second air passage, and at least a portion of the second aerosol-forming substrate is received in the second receiving groove.

11. The aerosol-generating article according to claim 10, wherein, The aerosol-generating article further includes a first heating element received in the first receiving groove; and / or The aerosol-generating article further includes a second heating element received in the first receiving groove.

12. The aerosol-generating article according to claim 10, wherein, There are a plurality of the first receiving grooves and a plurality of the first aerosol-forming substrates, and the plurality of the first aerosol-forming substrates are provided in one-to-one correspondence with the plurality of the first receiving grooves; and / or There are a plurality of the second receiving grooves and a plurality of the second aerosol-forming substrates, and the plurality of the second aerosol-forming substrates are provided in one-to-one correspondence with the plurality of the second receiving grooves.

13. The aerosol-generating article according to claim 1, characterized in that, The aerosol-generating article further includes a heating element, at least a portion of which is disposed outside or inside the housing for heating the aerosol-forming substrate.

14. The aerosol-generating article according to claim 13, wherein, The heating element includes a first heating element for heating the first aerosol-forming substrate, at least a portion of the first heating element is disposed in the first aerosol-forming substrate, or at least a portion of the first aerosol-forming substrate is disposed on the first heating element; and / or The heating element includes a second heating element for heating the second aerosol-forming substrate, at least a portion of the second heating element is disposed in the second aerosol-forming substrate, or at least a portion of the second aerosol-forming substrate is disposed on the second heating element.

15. The aerosol-generating article according to claim 14, wherein, The housing includes a heat-insulating material, or a heat-insulating material is disposed inside the housing, and the thermal conductivity of the heat-insulating material is less than or equal to 40 W / (m·K); There is the heat-insulating material between the first heating element and the second heating element, or they are disposed at different positions of the heat-insulating material.

16. The aerosol-generating article according to claim 13, wherein, The heating element includes a susceptor that can generate heat in a changing magnetic field.

17. The aerosol-generating article according to claim 1, characterized in that, The first aerosol-forming substrate is configured to be sheet-shaped; and / or The second aerosol-forming substrate is configured to be sheet-shaped; and / or The housing is configured to be flat.

18. The aerosol-generating article according to claim 1, wherein, The first air passage satisfies at least one of the following conditions: It has a substantially same ventilation cross-sectional area as the second air passage; In the thickness direction of the housing, the size of the first air passage is less than or equal to 0.5 mm; In the width direction of the housing, the size of the first air passage is less than or equal to 10 mm; The ventilation cross-sectional area is less than or equal to 4 mm 2 ; or It is substantially a straight air passage.

19. The aerosol-generating article according to claim 1, wherein, The housing has a non-centrally symmetric shape.

20. An aerosol generating system, characterized in that, An aerosol-generating device includes the aerosol-generating article according to any one of claims 1-19, and at least a portion of the aerosol-generating article is received in the aerosol-generating device, wherein the aerosol-generating device is configured to provide energy to heat the aerosol-forming substrate.

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