CN220545815U

CN220545815U - Aerosol-generating article and aerosol-generating system

Info

Publication number: CN220545815U
Application number: CN202321711796.2U
Authority: CN
Inventors: 郑永胜; 徐中立; 李永海
Original assignee: Shenzhen FirstUnion Technology Co Ltd
Current assignee: Shenzhen FirstUnion Technology Co Ltd
Priority date: 2023-06-30
Filing date: 2023-06-30
Publication date: 2024-03-01
Anticipated expiration: 2033-06-30

Abstract

The present application relates to an aerosol-generating article and an aerosol-generating system comprising: an aerosol matrix portion; a hollow part arranged at the downstream of the aerosol substrate part, and provided with an air inlet hole for allowing outside air to enter the hollow part; and a first gas storage part disposed upstream of the hollow part; wherein the first air reservoir is in fluid communication with the hollow portion through the aerosol-substrate portion and at least part of the air stored in the first air reservoir is supplied by the hollow portion, the first air reservoir being configured to release at least part of the air stored therein in the direction of the hollow portion when the aerosol-generating article is drawn in.

Description

Aerosol-generating article and aerosol-generating system

Technical Field

Embodiments of the present application relate to the field of aerosol generation technology, and in particular, to an aerosol-generating article and an aerosol-generating system.

Background

An aerosol-generating device is a device that can generate an aerosol from an aerosol product (e.g., a cigarette, cigar, etc.) without burning, and can greatly reduce harmful components in the aerosol when the aerosol product generates an aerosol when not burning, as compared to when the aerosol product generates an aerosol by burning. It is therefore desirable to control the temperature of the aerosol-generating device heating the aerosol-product to prevent combustion of the aerosol-product.

However, when the heating temperature of the aerosol-generating device for the aerosol-product is low, the amount of aerosol generated by the aerosol-product per unit time is small.

In order to increase the amount of aerosol produced per unit time by the aerosol product, while ensuring that the aerosol product does not burn, the aerosol product may be heated in a low oxygen environment.

However, in the conventional aerosol-generating device or aerosol-generating device suitable for generating an aerosol by heating in a low-oxygen environment, it is difficult for a user to sufficiently suck the aerosol generated by the aerosol-generating device into the mouth when sucking the aerosol-generating device, resulting in poor taste.

Disclosure of Invention

Embodiments of the present application provide an aerosol-generating article and an aerosol-generating system that facilitate sufficient pumping of aerosols generated by the aerosol article in a hypoxic environment.

Embodiments of the present application provide an aerosol-generating article comprising:

an aerosol matrix portion;

a hollow part arranged at the downstream of the aerosol matrix part, wherein an air inlet hole allowing outside air to enter the hollow part is arranged on the hollow part; and

a first gas reservoir disposed upstream of the hollow portion, the first gas reservoir in fluid communication with the hollow portion through the aerosol matrix portion;

wherein the first air reservoir is in fluid communication with the hollow portion through the aerosol-substrate portion and at least part of the air stored in the first air reservoir is supplied by the hollow portion, the first air reservoir being configured to release at least part of the air stored therein in the direction in which the hollow portion is located when the aerosol-generating article is drawn.

Embodiments of the present application provide an aerosol-generating system comprising an aerosol-generating device and the aerosol-generating article, wherein a heating cavity is provided in the aerosol-generating device, and at least part of the aerosol-generating article is incorporated in the heating cavity.

The aerosol-generating article and the aerosol-generating system described above, the aerosol-generating article comprises the aerosol substrate portion, the hollow portion disposed downstream of the aerosol substrate portion, and the first air storage portion disposed upstream of the hollow portion, the first air storage portion is in fluid communication with the hollow portion through the aerosol substrate portion, limited by the volume of the aerosol-generating article, the first air storage portion has a limited space, air from the hollow portion is reserved in the limited space of the first air storage portion, it is ensured that the aerosol substrate portion can be heated in a low-oxygen environment, and when negative pressure is formed in the hollow portion due to suction, the air pressure in the first air storage portion is greater than the air pressure in the hollow portion, so that at least part of the air reserved in the first air storage portion can be actively released in the direction in which the hollow portion is located, and at least part of the air reserved in the first air storage portion can flow through the aerosol substrate portion and can send at least part of the aerosol generated by the aerosol substrate portion into the hollow portion in the releasing process, so that the generated aerosol can be fully sucked into the mouth by a user, thereby helping to promote the suction taste.

Drawings

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures of the drawings are not to be taken in a limiting sense, unless otherwise indicated.

Fig. 1 is a schematic view of an aerosol-generating system provided in an embodiment of the present application;

fig. 2 is a schematic view of an aerosol-generating system provided in accordance with another embodiment of the present application;

fig. 3 is a schematic view of an aerosol-generating system provided in accordance with a further embodiment of the present application;

fig. 4 is a schematic view of an aerosol-generating article provided in an embodiment of the present application;

in the figure:

1. an aerosol-generating article; 11. an aerosol matrix portion; 12. a hollow portion; 121. a first wall portion; 122. a first cavity; 123. an air inlet hole; 13. a first gas storage part; 131. a second wall portion; 132. a second cavity; 133. a through hole; 14. a filtering part; 15. a bottom support; 16. packaging paper;

2. an aerosol-generating device; 21. a bottom cover; 22. a second gas storage part; 23. a seal ring; 24. an external heater; 25. and a power supply assembly.

Detailed Description

The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

The terms "first," "second," "third," and the like in this application are used for descriptive purposes only and are not to be construed as indicating or implying any particular order or quantity of features in relation to importance or otherwise indicated. All directional indications (such as up, down, left, right, front, back … …) in the embodiments of the present application are merely used to explain the relative positional relationship or movement between the components under a certain specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is correspondingly changed. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or one or more intervening elements may also be present therebetween. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Referring to fig. 1, an embodiment of the present application provides an aerosol-generating article 1 and an aerosol-generating system comprising an aerosol-generating article 1 and an aerosol-generating device 2, the aerosol-generating device 2 being operable to heat the aerosol-generating article 1 such that the aerosol-generating article 1 generates an aerosol for inhalation by a user.

As used herein, the term "aerosol-generating article" refers to an article comprising an aerosol matrix portion 11, which upon heating, releases volatile compounds with an aerosol from the aerosol matrix in the aerosol matrix portion 11. The aerosol base portion 11 may be intended to be heated rather than burned to release volatile compounds of the aerosol. Releasing the aerosol by heating the aerosol matrix in the aerosol matrix portion 11 may contain fewer known hazardous components than the aerosol produced by burning or pyrolysis of the aerosol matrix portion 11.

The aerosol matrix in the aerosol matrix portion 11 may be a solid, e.g. the solid aerosol matrix portion 11 may comprise one or more of the following: powders, granules, pellets, chips, threads, ribbons, flakes, and the like; or the aerosol matrix in the solid aerosol matrix portion 11 may comprise one or more of the following: herb leaves, tobacco veins, expanded tobacco, homogenized tobacco, and the like.

The aerosol matrix in the aerosol matrix portion 11 may comprise nicotine, for example the aerosol matrix portion 11 may comprise tobacco or a nicotine salt.

The aerosol matrix portion 11 may have a diameter D of at least 5 mm. The aerosol matrix portion 11 may have a diameter D of between about 5mm and about 12mm, for example between about 5mm and about 10mm or between about 6mm and about 8 mm.

The aerosol matrix portion 11 may have a longitudinal length L1 of between about 5mm and about 50mm, for example between about 10mm and about 45mm or between about 12mm and about 18 mm.

The aerosol-generating article 1 further comprises a hollow portion 12, the hollow portion 12 being arranged downstream of the aerosol-substrate portion 11 in the main flow direction of the aerosol in the aerosol-generating article 1 when the aerosol-generating article 1 is drawn, the aerosol generated by the aerosol-substrate portion 11 being able to be drawn into the mouth by a user after passing through the hollow portion 12.

Specifically, the hollow portion 12 includes a first wall portion and a first cavity 122 surrounded by the first wall portion 121, the first cavity 122 being in fluid communication with the aerosol base portion 11, the first cavity 122 being capable of providing a localized air path for aerosol generated by the aerosol base portion 11 into the mouth of a user.

The first wall portion 121 is provided with an air inlet hole 123, the air inlet hole 123 is in fluid communication with the outside of the aerosol-generating article 1 and the first cavity 122, air from the outside of the aerosol-generating article 1 can enter the first cavity 122 through the air inlet hole 123, and at least part of air in the first cavity 122 can enter the aerosol-substrate portion 11.

The aerosol-generating article 1 further comprises a first air reservoir 13, the first air reservoir 13 being arranged upstream of the hollow 12 in the direction of flow of air in the aerosol-generating article 1 when the aerosol-generating article 1 is drawn. Wherein the first air storage portion 13 and the hollow portion 12 are in fluid communication through the aerosol matrix portion 11, that is, at least part of the aerosol matrix in the aerosol matrix portion 11 is located between the hollow portion 12 and the first air storage portion 13, and air in the middle portion 12 needs to pass through at least part of the aerosol matrix to enter the first air storage portion 13 for storage, and air stored in the first air storage portion 13 needs to pass through at least part of the aerosol matrix to enter the hollow portion 12. When negative pressure is formed in the hollow part 12 due to suction, the air pressure in the first air storage part 13 is larger than the air pressure in the hollow part 12, so that at least part of air stored in the first air storage part 13 can be actively released towards the direction of the hollow part 12, and during the release process, at least part of air stored in the first air storage part 13 flows through at least part of aerosol matrix in the aerosol matrix part 11 and at least part of aerosol generated by the aerosol matrix part 11 is sent into the hollow part 12, so that the generated aerosol can be fully sucked into a mouth by a user, and the suction taste is promoted.

Air from outside the aerosol-generating article 1 can enter the first cavity 122 through the air inlet aperture 123. When the air outside the aerosol-generating article 1 is not able, or the air outside the aerosol-generating article is able to enter the aerosol-substrate portion 11 from the upstream of the aerosol-substrate portion 11 only in a small amount, if the first air storage portion 13 is not provided in the aerosol-generating article 1, it may be difficult for the aerosol generated by the aerosol-substrate portion 11 to enter the first cavity 122 due to the air entering the first cavity 122 through the air intake hole 123, or only a small amount of the aerosol generated by the aerosol-substrate portion 11 may enter the first cavity 122. Thus, the suction taste is poor. The provision of the first gas reservoir 13 in the aerosol-generating article 1 can significantly solve or ameliorate this problem.

In an embodiment, the first air reservoir 13 is arranged upstream of the aerosol-substrate portion 11, i.e. the first air reservoir 13 is closer to the bottom of the aerosol-generating article 1 than the aerosol-substrate portion 11, in the direction of flow of air in the aerosol-generating article 1 when the aerosol-generating article 1 is drawn. In other words, the aerosol substrate 11 is disposed between the first air storage 13 and the hollow 12, the first air storage 13 and the hollow 12 are spaced apart by the aerosol substrate 11, and the space between the first air storage 13 and the hollow 12 is equal to the longitudinal length L1 of the aerosol substrate 11, and the air reserved in the first air storage 13 can enter the aerosol substrate 11, and further the air reserved in the first air storage 13 can send at least part of the aerosol generated by the aerosol substrate 11 into the hollow 12.

In the aerosol-generating article 1 provided in an embodiment of the present application, the first air storage portion 13 is provided upstream of the aerosol-substrate portion 22, and when the first cavity 122 is brought to a negative pressure due to suction by the user, the air pressure in the first air storage portion 13 is greater than the air pressure in the first cavity 122, so that at least part of the air reserved in the first air storage portion 13 can actively flow toward the first cavity 122 and can flow through almost all of the aerosol substrate in the aerosol-substrate portion 11, and at least part of the aerosol generated by the aerosol-substrate portion 11 can be adhered into the first cavity 122 when flowing through the aerosol-substrate portion 11. Therefore, the first gas storage portion 13 provided upstream of the aerosol base portion 11 can increase the amount of aerosol sucked into the mouth portion by the user per unit time, contributing to the improvement of the suction taste.

In an embodiment, the first gas storage portion 13 is arranged upstream of a part of the aerosol-substrate in the aerosol-substrate portion 22, i.e. the first gas storage portion 13 is only closer to the bottom of the aerosol-generating article 1 than to a part of the aerosol-substrate in the aerosol-substrate portion 22, which part of the aerosol-substrate in the aerosol-substrate portion 22 may be upstream of the first gas storage portion 13 in the flow direction of aerosol in the aerosol-generating article 1.

So that at least part of the air stored in the first air reservoir 13 can only flow through part of the aerosol matrix upon suction, so that at least part of the aerosol generated by the part of the aerosol matrix can only be fed into the hollow 12.

When the first air storage part 13 is disposed upstream of at least part of the aerosol-substrate in the aerosol-substrate part 22, in an embodiment, the first air storage part 13 may include a second wall part 131 and a second cavity 132 surrounded by the second wall part 131, the second cavity 132 being configured to store air so that at least part of the air stored in the second cavity 132 can feed at least part of the aerosol generated by the aerosol-substrate part 11 into the first cavity 122 when a negative pressure occurs in the first cavity 122 in the hollow part 12, the aerosol can be mixed with the air entering the first cavity 122 through the air inlet hole 123 in the first cavity 122, the provision of the air inlet hole 123 can reduce both the suction resistance of the aerosol-generating article 1 and the temperature of the aerosol, prevent the aerosol from entering the mouth of the user, and also can supplement the air to the aerosol-substrate part 11 and the first air storage part 13 through the first cavity 122 when the user stops the suction.

The diameter of the second cavity 132 may be about equal to the diameter D of the aerosol matrix portion 11, e.g., the filter portion 14 may have a diameter of between about 5mm and about 12mm, e.g., between about 5mm and about 10mm or between about 6mm and about 8 mm.

Theoretically, the larger the volume of the first air storage portion 13, the more air is stored in the second cavity 132, and the more aerosol generated by the aerosol base portion 11 can be sent into the first cavity 122 and further into the mouth of the user. Thus, in some embodiments, the volume of the first gas reservoir 13 or the second cavity 132 may be one third to one half of the volume of the aerosol matrix portion 11, alternatively, the volume of the first gas reservoir 13 or the second cavity 132 may be two fifths of the volume of the aerosol matrix portion 11. The first gas storage portion 13 or the second cavity 132 is used for storing gas, so that aerosol quality and aerosol quantity entering the mouth of a user can be improved and aerosol taste can be improved when the aerosol substrate portion 11 is in a low-oxygen heating environment. Also, the space of the first air storage portion 13 or the second cavity 132 is limited by the volume of the aerosol-generating article 1, so that the air stored therein cannot provide sufficient oxygen for heating the aerosol-substrate portion 11, and thus, in the presence of the first air storage portion 13 or the second cavity 132 in the aerosol-generating article 1, the aerosol-substrate portion 11 can still be heated and generate aerosol in a low-oxygen environment, helping to ensure that the aerosol-substrate portion 11 generates a sufficient amount of aerosol per unit time.

When the first gas storage portion 13 is disposed upstream of the aerosol substrate portion 22, the volume of the first gas storage portion 13 may be less than or equal to the volume of the aerosol substrate portion 11, or the volume of the second cavity 132 may be less than or equal to the total volume of the aerosol substrate contained in the aerosol substrate portion 11.

In theory, the smaller the aperture of the air inlet hole 123, the more aerosol generated by the aerosol base portion 11 can be sent into the first cavity 122 and further into the mouth of the user, however, too small the aperture of the air inlet hole 123 will result in an increase of the suction resistance of the aerosol-generating article 1, and further will affect the suction experience of the user. Based on this, the aperture of the air intake hole 123 may be set to about 0.6±0.3mm, thereby enabling the aerosol-generating article 1 to have a suitable resistance to suction while also ensuring that a user can suck more aerosol per unit time. In a specific embodiment, the aperture of the air intake aperture 123 is about 0.6mm.

It will be appreciated that in other embodiments, at least part of the first gas reservoir may be provided in the aerosol matrix portion.

For example, the aerosol substrates in the aerosol substrate portion may be loosely arranged such that there are larger spaces between the aerosol substrates within the aerosol substrate portion or a larger number of spaces that are capable of storing air, and thus may constitute at least part of the first gas storage portion.

For example, the aerosol substrate portion may have one or more air flow grooves distributed therein, which may be formed by squeezing the aerosol substrate, and a perforated support may be provided to laterally support the aerosol substrate, preventing refilling of the aerosol substrate and thus blocking of the air flow grooves, which are used for storing air, so that the air flow grooves may constitute at least part of the first air storage portion.

For example, the aerosol substrate portion comprises an aerosol substrate and a third wall portion surrounding the aerosol substrate, the third wall portion may define at least part of a lateral boundary of the aerosol substrate portion, wherein the aerosol substrate comprises a first portion and a second portion, the first portion being downstream of the second portion, i.e. the first portion is located between the hollow portion and the second portion, the outer diameter of the first portion being larger than the outer diameter of the second portion, at least part of the first gas reservoir being arranged around the second portion, i.e. at least part of the first gas reservoir is located between the third wall portion and the second portion.

It will be appreciated that in other embodiments, the first reservoir comprises a porous body capable of storing air, the porous body having a plurality of apertures therein so as to be capable of storing air. Suitable porous bodies may include one or more of sponges, cotton fibers, acetate sticks, porous ceramics, activated carbon, fiberglass, paper, and porous silica gel. At least part of the porous body may be disposed upstream of the aerosol matrix section so that the porous body is capable of storing air to feed at least part of aerosol generated in the aerosol matrix section into the hollow section upon suction, and is also capable of absorbing oil that permeates out of the aerosol matrix in the aerosol matrix section, preventing the oil from leaking, and also capable of preventing residue generated in the aerosol matrix section from falling.

The aerosol-generating article 1 may further comprise a filter portion 14, the filter portion 14 being arranged downstream of the aerosol-substrate portion 11 in a main flow direction of the aerosol in the aerosol-generating article 1 upon inhalation of the aerosol-generating article 1, at least part of the filter portion 14 being engageable in the mouth by a user, who may inhale the aerosol generated in the aerosol-generating article 1 by the filter portion 14.

The filter portion 14 may comprise one or more suitable filter materials, for example, may comprise cellulose acetate tow.

The diameter of the filter portion 14 may be about equal to the diameter D of the aerosol matrix portion 11, e.g., the filter portion 14 may have a diameter of between about 5mm and about 12mm, e.g., between about 5mm and about 10mm or between about 6mm and about 8 mm.

The filter portion 14 may have a length L2 of between about 5mm to about 20mm or between about 5mm to about 14 mm. For example, the filter portion 14 may have a length L2 of about 14mm or 7 mm.

The hollow portion is disposed between the filter portion 14 and the aerosol base portion 11, and the aerosol generated by the aerosol base portion 11 needs to flow through the first cavity 122 to enter the filter portion 14 and further into the mouth of the user.

In an embodiment, the space between the air inlet hole 123 and the filtering portion 14 is larger than the space between the air inlet hole 123 and the aerosol base portion 11, so that the aerosol generated by the aerosol base portion 11 is easier to enter the first cavity 122 by reducing the space between the air inlet hole 123 and the aerosol base portion 11, which is beneficial to improving the sucking taste of the user.

In an embodiment, which may be referred to in fig. 4, the aerosol-generating article 1 further comprises a shoe 15, the shoe 15 sealing the upstream end of the aerosol-generating article 1, the shoe 15 being arranged at the bottom of the aerosol-generating article 1 if the filter portion 14 is located at the top of the aerosol-generating article 1, the shoe 15 being adapted to prevent outside air from entering the aerosol-generating article 1 from the bottom or upstream end of the aerosol-generating article 1. In embodiments in which the aerosol-generating article 1 comprises a shoe 15, ambient air enters the aerosol-generating article 1 primarily through the air inlet aperture 123, the provision of the shoe 15 helps to create a low oxygen heated environment for the aerosol-substrate portion 11 in the aerosol-generating article 1. Referring to fig. 4, when the first gas storage part 13 is disposed upstream of the aerosol substrate part 22, the first gas storage part 13 may be located between the shoe 15 and the aerosol substrate part 11, and the shoe 15 may define a partial boundary of the first gas storage part 11. It should be noted that the shoe 15 is optional and not necessary.

The aerosol-generating article 1 may further comprise a wrapper 16, the wrapper 16 being tubular, a portion of the wrapper 16 may constitute at least part of a wall of the aerosol-substrate portion 11 surrounding the aerosol-substrate, a portion of the wrapper 16 may constitute at least part of the first wall portion 121 of the hollow portion 12, and a portion of the wrapper 16 may constitute at least part of the second wall portion 131 of the first gas reservoir portion 13. Wrapper 16 may be conventional cigarette paper, for example wrapper 16 may be wrapper 16 having a thickness of about 0.08 mm. The wrapper 16 may have a greater stiffness or thickness than conventional cigarette paper, for example, a portion of the wrapper 16 may constitute the entirety of the second wall portion 131 in the first air storage portion 13, thereby eliminating the need to provide a support member for supporting the wrapper 16 in the first air storage portion 14, or a portion of the wrapper 16 may constitute the entirety of the first wall portion 121 in the hollow portion 12, thereby eliminating the need to provide a support member for supporting the wrapper 16 in the hollow portion 12.

The aerosol-generating article 1 may have a diameter D of between about 5mm and about 12mm, for example between about 5mm and about 10mm or between about 6mm and about 8 mm.

The aerosol-generating article 1 may have a total longitudinal length L3 of between about 30mm and about 100mm, for example between about 40mm and about 60mm or between about 42mm and about 50 mm. For example, the aerosol-generating article may have a total longitudinal length L3 of about 45 mm.

The aerosol-generating device 2 is provided with a heating chamber in which at least part of the aerosol-generating article 1 may be accommodated, wherein at least part of the aerosol-substrate portion 11 is accommodated in the heating chamber and heated therein to generate an aerosol. In one embodiment, the upper end of the heating chamber is open, and the aerosol substrate portion 11 enters the heating chamber through the upper end of the heating chamber.

A second gas reservoir 22 may be provided in the aerosol-generating device 2, the second gas reservoir 22 being in fluid communication with the first gas reservoir 13 when the aerosol-generating article 1 is combined with the aerosol-generating device 2, including the second gas reservoir 22 being in direct fluid communication with the first gas reservoir 13, or the second gas reservoir 22 being in indirect communication with the first gas reservoir 13 via the aerosol-substrate portion 11. At the time of user suction, the air stored in the second air storage portion 22 may enter the first air storage portion 13. The provision of the second air storage portion 22 can increase the amount of air that enters the aerosol base portion 11 when the user sucks, thereby enabling more aerosol generated by the aerosol base portion 11 to enter the hollow portion 12.

In an example, the second air reservoir 22 is arranged below the aerosol-generating article 1, such that air stored in the second air reservoir 22 may enter the aerosol-substrate portion 11 from the upstream end or bottom of the aerosol-substrate portion 11, and further into the hollow portion 12, helping to enable the air stored in the second air reservoir 22 to flow through almost all of the aerosol-substrate in the aerosol-substrate portion 11; based on this, the bottom cover may support the upstream end/bottom of the aerosol-generating article. For example, referring to fig. 1, the first air storage part 13 is disposed upstream of the aerosol matrix part 22, and the second air storage part 22 is disposed below the first air storage part 13, so that air stored in the second air storage part 22 may enter the first air storage part 13 from an upstream end or bottom of the first air storage part 13.

In an example, the second gas reservoir 22 at least partially surrounds the periphery of the aerosol-generating article 1, or the second gas reservoir 22 at least partially surrounds the periphery of the first gas reservoir 13, or the second gas reservoir 22 at least partially surrounds the periphery of the aerosol-substrate portion 11. For example, referring to fig. 2, the first gas storage portion 13 is disposed upstream of the aerosol substrate portion 22, and the second gas storage portion 22 is disposed at least partially around the periphery of the first gas storage portion 13.

In an example, the second gas storage portion 22 is disposed obliquely below the aerosol-generating article, or the second gas storage portion 22 is disposed obliquely below the first gas storage portion 13, so that the residue of the aerosol-substrate portion 11 falling down can be prevented from falling into the second gas storage portion 22. For example, the first gas storage portion 13 is disposed upstream of the aerosol substrate portion 22, and the second gas storage portion 22 is disposed obliquely below the first gas storage portion 13.

In an embodiment, the aerosol-generating device 2 further comprises a bottom cover 21 delimiting part of the heating chamber, the bottom cover 21 being arranged opposite the upper end of the heating chamber, and the bottom cover 21 may be configured as a closed structure, whereby the bottom cover 21 is capable of preventing air outside the heating chamber from passing through the bottom cover 21 into the heating chamber.

In an example, referring to fig. 1 to 3, the bottom cover 21 defines at least a partial boundary of the second air storage portion 22.

In an example, the upstream end/bottom of the aerosol-generating article 1 may have a gap with the bottom cover 21, and when the upstream end/bottom of the aerosol-generating article 1 is not provided with the shoe 15 described in the above embodiment, or when the shoe 15 is provided with air holes, the air in the second air storage portion 22 may enter the aerosol-substrate portion 11 from the upstream end/bottom of the aerosol-generating article 1, and the air in the first air storage portion 13 may enter the second air storage portion 22 from the upstream end/bottom of the aerosol-generating article 1.

In an example, referring to fig. 1-3, the bottom cover 21 supports the upstream end/bottom of the aerosol-generating article 1.

If the second gas storage portion 22 is disposed at least partially around the periphery of the aerosol-substrate portion 11 and the upstream end/bottom of the aerosol-generating article 1 is sealed, including the upstream end/bottom of the aerosol-generating article 1 being sealed by the shoe 15 or the upstream end/bottom of the aerosol-generating article 1 being sealed by the bottom cover 21, then a through hole 133 may be provided in the second wall portion 131 of the first gas storage portion 13, the through hole 133 being in fluid communication with the second gas storage portion 22 and the second cavity 132 in the first gas storage portion 13, such that air stored in the second gas storage portion 22 may enter the second cavity 132 in the first gas storage portion 13 through the through hole 133; alternatively, air holes may be provided in the third wall portion of the aerosol base portion 11, the air holes being in fluid communication with the second air storage portion 22 and the aerosol base portion 11, such that air stored in the second air storage portion 22 may enter the aerosol base portion 11 through the air holes.

In an example, the aerosol-generating device 2 further comprises a sealing ring 23, the inner diameter of the sealing ring 23 being smaller than the outer diameter of the aerosol-generating article 1, and the sealing ring 23 being arranged around the aerosol-generating article 1 when the aerosol-generating article 1 is coupled to the aerosol-generating device 2 such that the sealing ring 23 is in sealing connection with the aerosol-generating article 1 such that air can be prevented from entering the second air reservoir 22 along the outer surface of the aerosol-generating article 1, whereby the interior of the aerosol-generating article 1 provides outside air into an air flow channel stored in the second air reservoir 22, which air flow channel may be defined locally by the first air reservoir 13, i.e. the second cavity 132 may constitute a part of the air flow channel, which may be surrounded by the second wall 131. Specifically, the sealing ring 23 may be disposed around the hollow portion 12, and the sealing ring 23 is disposed below the air inlet hole 123, so that the sealing ring 23 does not affect the external air entering the first cavity 122 of the hollow portion 12.

It should be noted that when the first gas reservoir 13 is provided in the aerosol-generating article 1, the second gas reservoir 22 in the aerosol-generating device 2 is optional and not necessary. In some embodiments, the aerosol-generating article 1 has a first gas reservoir 13 disposed upstream of the aerosol-substrate portion 11, and the aerosol-generating device 2 may not have a second gas reservoir 22 therein.

It should be noted that, in case the aerosol-generating device 2 has the second gas reservoir 22 arranged upstream of the aerosol-generating article 1, the provision of the first gas reservoir 13 in the aerosol-generating article 1 is optional and not necessary. In some embodiments, reference may be made to fig. 3, in which the aerosol-generating device 2 has a second gas reservoir 22 arranged upstream of the aerosol-generating article 1, but in which the aerosol-generating article 1 does not have a first gas reservoir 13 arranged upstream of the aerosol-substrate portion 11.

The aerosol-generating device 2 may be described as a heated aerosol-generating device 2, which is a device comprising a heating group for heating an aerosol-substrate of the aerosol-generating article 1 to generate an aerosol.

The heating assembly may comprise an external heater 24, the external heater 24 referring to a heater positioned outside the aerosol-generating article 1 when the aerosol-generating article 1 is assembled in the aerosol-generating device 2.

Referring to fig. 1 and 2, the external heater 24 includes a tubular body 241, the tubular body 241 being disposed around the heating chamber and defining at least a partial boundary of the heating chamber. In one example, the tubular body 241 comprises a resistive material such that the tubular body 241 is capable of generating joule heat when electrically conductive. In an example, the tubular body 241 contains a susceptor which is capable of generating heat in a varying magnetic field, on the basis of which the aerosol-generating device 2 further comprises a magnetic field generator for generating a varying magnetic field, the susceptor being arranged in the coverage of the additional magnetic field generated by the magnetic field generator. In an example, the external heater 24 further includes a heating member 242 disposed on the tubular body 241, the heating member 242 may generate joule heat or may generate heat in a varying magnetic field, and the heating member 242 may be a heating coil, a metal etching net, a heat generating film layer, an infrared coating layer, or the like.

In one embodiment, the bottom cover 21 supports the bottom of the tubular body 241.

In an embodiment, referring to fig. 1, when the aerosol-generating article 1 is combined with the aerosol-generating device 2, the aerosol-substrate portion 11 is located in the tubular body 241, at least part of the first gas reservoir 13 is located in the tubular body 241, such that at least part of the first gas reservoir 13 is surrounded by the tubular body 241, such that at least part of the air stored in the first gas reservoir 13 may be heated by the external heater 24.

In an embodiment, referring to fig. 2, when the aerosol-generating article 1 is combined with the aerosol-generating device 2, a part of the aerosol-substrate portion 11 is located in the tubular body 241, at least a part of the first gas storage portion 241 extends outside the tubular body 241, in particular, at least a part of the first gas storage portion 13 extends below the tubular body 241, such that at least a part of the first gas storage portion 13 is not surrounded by the tubular body 231, more in particular, at least a part of the first gas storage portion 13 may extend into the bottom cover 21 and be surrounded by the bottom cover 21.

The heating assembly may comprise an internal heater, which refers to a heater that is positioned at least partially within the aerosol-generating article when the aerosol-generating article is assembled in the aerosol-generating device.

The internal heater may comprise a rod-like, needle-like or sheet-like heating element, which may be inserted at least partially into the aerosol-generating article, for example into the aerosol-substrate portion, when the aerosol-generating article is combined with the aerosol-generating device.

A portion of the heating member may be embedded in the bottom cover so that the heating member may be fixed to the bottom cover. Thus, at least part of the heating member may be located in the first air storage portion.

The aerosol-generating device 2 may further comprise a power supply assembly 25, the power supply assembly 25 being electrically connected to the heating assembly to provide electrical support for the heating assembly to generate a transformed magnetic field or to release heat.

The aerosol-generating device 2 provided in an embodiment of the present application may be a device that heats the aerosol-substrate portion 11 in the aerosol-generating article 1 under a low-oxygen environment and generates an aerosol, that is, when the aerosol-generating article 1 is combined with the aerosol-generating device 2, it is difficult for external air to enter the aerosol-substrate portion 11 in large amounts from the upstream end or bottom of the aerosol-generating article 1 through the aerosol-generating device 2, so that the air stored in the first air storage portion 13 is mainly supplied by the hollow portion 12 and the air stored in the second air storage portion 22 is mainly supplied by the hollow portion 12 when the suction of the aerosol-generating article 1 in a use state is intermittent. When the aerosol-generating article 1 is in the suction state in the use state, the air stored in the first air storage portion 13 and/or the second air storage portion 22 may enter the aerosol-substrate portion 11 and squeeze the aerosol generated by the aerosol-substrate portion 11 into the hollow portion 12, so that a sufficient amount of aerosol is inhaled into the mouth by the user.

The aerosol-generating article 1 provided in an embodiment of the present application may be provided with the shoe 15 so as to enable the aerosol-substrate portion 11 to be heated in a low-oxygen environment even when incorporated in a conventional aerosol-generating device 2, such that when the aerosol-generating article 1 is in a use state and the suction is intermittent, air stored in the first air storage portion 13 is mainly supplied from the hollow portion 12, and air entering the first cavity 122 through the air inlet hole 123 may pass through at least part of the aerosol-substrate in the aerosol-substrate portion 11 to be stored in the first air storage portion 13. When the aerosol-generating article 1 is in the suction state of the use state, the air stored in the first air storage portion 13 may enter at least part of the aerosol matrix portion 11 and squeeze at least part of the aerosol generated by the aerosol matrix portion 11 into the hollow portion 12, so that a sufficient amount of aerosol is inhaled into the mouth by the user.

It should be noted that the description and drawings of the present application show preferred embodiments of the present application, but are not limited to the embodiments described in the present application, and further, those skilled in the art can make modifications or changes according to the above description, and all such modifications and changes should fall within the scope of the appended claims.

Claims

1. An aerosol-generating article comprising:

an aerosol matrix portion;

a first gas storage portion disposed upstream of the hollow portion;

2. The aerosol-generating article of claim 1, wherein the aerosol-substrate portion is located between the first gas storage portion and the hollow portion.

3. The aerosol-generating article according to claim 1, wherein the volume of the first gas reservoir is less than or equal to the volume of the aerosol-substrate portion.

4. The aerosol-generating article according to claim 1, further comprising a filter portion, the hollow portion being disposed between the filter portion and the aerosol-substrate portion.

5. An aerosol-generating article according to claim 4, wherein the spacing between the air inlet aperture and the filter portion is greater than the spacing between the air inlet aperture and the aerosol-substrate portion.

6. An aerosol-generating article according to claim 1, wherein the air inlet aperture is 0.6 ± 0.3mm.

7. The aerosol-generating article according to claim 1, wherein at least part of the first gas storage portion is disposed in the aerosol-substrate portion.

8. The aerosol-generating article of claim 1, further comprising a shoe sealing an upstream end of the aerosol-generating article.

9. The aerosol-generating article according to claim 1, wherein the first gas reservoir comprises a cavity for storing air.

10. The aerosol-generating article according to claim 1, wherein the first gas reservoir comprises a porous body capable of storing air, at least part of the porous body being disposed outside and upstream of the aerosol-substrate portion.

11. The aerosol-generating article according to claim 10, wherein the porous body is a sponge, cotton fiber, acetate filter, porous ceramic, activated carbon, fiberglass, paper, or porous silica gel.

12. An aerosol-generating system comprising an aerosol-generating device and an aerosol-generating article according to any of claims 1-11, the aerosol-generating device having a heating chamber provided therein, at least part of the aerosol-generating article being incorporated in the heating chamber.

13. An aerosol-generating system according to claim 12, wherein the heating chamber is open at an upper end for at least partial insertion of the aerosol-generating article therein, the aerosol-generating device further comprising a bottom cover disposed opposite the upper end of the heating chamber, the bottom cover defining a partial boundary of the heating chamber, the bottom cover being configured in a closed configuration.

14. The aerosol-generating system of claim 13, wherein the aerosol-generating device has a second gas reservoir in fluid communication with the first gas reservoir, and wherein the bottom cover defines at least a portion of a boundary of the second gas reservoir.

15. An aerosol-generating system according to claim 12, wherein the aerosol-generating device has a second gas reservoir in fluid communication with the first gas reservoir, the aerosol-generating article being configured to provide an airflow path for ambient air into the second gas reservoir, the first gas reservoir defining a part of the airflow path.

16. The aerosol-generating system of claim 12, wherein the aerosol-generating device has a second gas reservoir therein in fluid communication with the first gas reservoir;

at least part of the second gas storage part is arranged around the first gas storage part; or alternatively

At least part of the second gas storage part is arranged below the first gas storage part; or alternatively

The second gas storage part is arranged obliquely below the first gas storage part.

17. An aerosol-generating system according to claim 12, wherein the aerosol-generating device further comprises a sealing ring, the sealing ring having an inner diameter smaller than an outer diameter of the aerosol-generating article, and the sealing ring being arranged around the aerosol-generating article.