EP4725336A1

EP4725336A1 - Aerosol generating medium and aerosol generating device

Info

Publication number: EP4725336A1
Application number: EP24829788.9A
Authority: EP
Inventors: Hang Li; Yongfu Li; Jun Ni; Jianguo Tang
Original assignee: Smoore International Holdings Ltd
Current assignee: Smoore International Holdings Ltd
Priority date: 2023-06-29
Filing date: 2024-01-26
Publication date: 2026-04-15
Also published as: CN119214358A; US20260114505A1; KR20260018161A; WO2025001126A1

Abstract

Provided in the embodiments of the present application are an aerosol generating medium and an aerosol generating device. The aerosol generating medium comprises a medium peripheral wall used for being heated to generate aerosol, a hollow space being defined by the medium peripheral wall, and the thickness of the medium peripheral wall being 0.1 mm-0.4 mm. In the aerosol generating medium provided by the embodiment of the present application, the hollow space is defined by the medium peripheral wall, thus reducing the weight and the thickness of the aerosol generating medium, and facilitating heated atomization; after being generated, aerosol can be directly released from the hollow space, thus achieving enough aerosol release space; and the configuration of the thickness dimension of the medium peripheral wall ensures the structural stability of the aerosol generating medium itself, and also allows both the surface and the inside of the medium peripheral wall to be fully heated when the medium peripheral wall is being heated, thus helping to generate aerosol rapidly, and achieving high use experience of users.

Description

CROSS-REFERENCES TO RELATED APPLICATIONS

This application is based on and claims priority to Chinese Patent Application No. 202310789514.9 filed on June 29, 2023 , which is incorporated by reference in its entirety.

TECHNICAL FIELD

The present disclosure relates to the technical field of atomization, and in particular to an aerosol generating substrate and an aerosol generating device.

BACKGROUND

An aerosol generating device is an electronic delivery system that controls the operating state and the smoke output volume through a control circuit and an atomization element for user inhalation. The aerosol generating device typically includes a heating component, a power supply assembly, and an aerosol generating substrate. The power supply assembly is used to supply power to the heating component; and the heating component in the power-up state heats and atomizes the aerosol generating substrate to generate aerosol for use by the user.
In the related technologies, the aerosol generating substrate cannot be instantly and sufficiently heated to rapidly release the aerosol, and there is not enough space for releasing the aerosol, which affects atomization efficiency and user experience.

SUMMARY

In view of the above, the embodiments of the present disclosure are expected to provide an aerosol generating substrate and an aerosol generating device. The aerosol generating substrate can be sufficiently heated to rapidly release aerosol, there can be enough space for releasing the aerosol, the atomization efficiency can be high, and the user experience can be superior.
An aerosol generating substrate includes a peripheral wall configured for being heated to generate aerosol, the peripheral wall surrounds a hollow space, and a thickness of the peripheral wall is 0.1 mm to 0.4 mm.
In some embodiments, the thickness of the peripheral wall is 0.18 mm to 0.28 mm.
In some embodiments, the thickness of the peripheral wall is set uniformly.
In some embodiments, a cross section of the peripheral wall is an annular shape.
In some embodiments, the aerosol generating substrate includes an inner frame, the inner frame is disposed within the peripheral wall and partitions the hollow space into a plurality of airway holes.
In some embodiments, the inner frame includes a plurality of supports, the first ends of the plurality of supports are directly or indirectly interconnected, the second ends of the plurality of supports are spaced apart and connected to an inner wall of the peripheral wall, and each two adjacent of the plurality of supports and the inner wall of the peripheral wall defines one of the airway holes.
In some embodiments, the inner frame includes an inner cylinder, the inner cylinder is hollow and defines at least one of the airway holes, and the plurality of supports are radially distributed around the inner cylinder.
In some embodiments, the aerosol generating substrate is an integrated structure.
In some embodiments, the aerosol generating substrate is an integrated extrusion structure.
In some embodiments, an outer surface of the peripheral wall includes a light absorbing layer; or an interior of the peripheral wall includes a light absorbing material.
Embodiments of the present disclosure provide an aerosol generating device, which includes:

the aerosol generating substrate according to any embodiment of the present disclosure; and
a laser heating assembly, configured to perform laser heating atomization on the aerosol generating substrate.

The aerosol generating device includes an accommodating chamber, and the aerosol generating substrate is accommodated in the accommodating chamber.
In some embodiments, the laser heating assembly includes a first laser emission source, and the first laser emission source is disposed on an outer side of the peripheral wall and is configured to emit laser toward the peripheral wall.
In some embodiments, the laser heating assembly includes a second laser emission source, the aerosol generating substrate includes an inner frame, the inner frame is disposed within the peripheral wall and partitions a space of the peripheral wall into a plurality of airway holes, and the second laser emission source is disposed within at least one of the airway holes and is configured to emit laser toward an inner wall of the airway hole.
In some embodiments, the aerosol generating device includes a rotation assembly, and the aerosol generating substrate is rotatable driven by the rotation assembly.
In the aerosol generating substrate provided by the embodiments of the present disclosure, the peripheral wall surrounds the hollow space. On the one hand, the weight and thickness of the aerosol generating substrate can be reduced, which can facilitate the atomization by heating. On the other hand, upon the atomization by heating, the aerosol generated from the aerosol generating matrix of the surface or interior of the peripheral wall can be directly released through the hollow space for use by the user. There is sufficient space for releasing the aerosol, which can improve the utilization rate of the aerosol. The dimensional arrangement of the thickness of the peripheral wall can ensure that the aerosol generating substrate maintains its own structural stability, while both the surface and the interior of the peripheral wall are fully heated during the heating, which can facilitate the rapid generation of the aerosol. Moreover, the aerosol generating matrix of the surface or interior of the peripheral wall can be fully utilized, with a short atomization waiting time. The structure of the aerosol generating substrate is simple, facilitating the manufacturing and installation as well as enhancing the user experience.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic structural diagram of an aerosol generating substrate according to an embodiment of the present disclosure.
FIG. 2 is a schematic structural diagram of the aerosol generating substrate shown in FIG. 1 from another perspective.
FIG. 3 is a schematic structural diagram of an aerosol generating substrate according to another embodiment of the present disclosure.
FIG. 4 is a schematic structural diagram of the aerosol generating substrate shown in FIG. 3 from another perspective.
FIG. 5 is a schematic structural diagram of an aerosol generating substrate according to yet another embodiment of the present disclosure.
FIG. 6 is a schematic structural diagram of the aerosol generating substrate shown in FIG. 5 from another perspective.

DETAILED DESCRIPTION

It should be noted that, when not conflicting, the embodiments and the technical features of the embodiments in the present disclosure may be combined with one other. The detailed description in the specific implementations should be understood as an illustrative explanation of the present disclosure, and should not be construed as any undue limitation on the present disclosure.
In the description of the embodiments of the present disclosure, the terms "inside/inner" and "outside/outer" and other indication of orientation or positional relationship are based on the orientation or positional relationship shown in the drawings. Such terms are intended only for the convenience of describing and simplifying the description of the embodiments of the present disclosure, and do not indicate or imply that the referred device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, such terms cannot be understood as any limitation on the embodiments of the present disclosure.
Referring to FIGS. 1 to 6, an aerosol generating substrate 1 is provided in the embodiments of the present disclosure.
An aerosol generating device is provided in an embodiment of the present disclosure, and the aerosol generating device includes a laser heating assembly and the aerosol generating substrate 1 according to any embodiment of the present disclosure. Here, the laser heating assembly is configured to perform laser heating and atomization on the aerosol generating substrate 1, the aerosol generating device includes an accommodating chamber, and the aerosol generating substrate 1 is accommodated in the accommodating chamber.
Of course, the aerosol generating substrate 1 may also be used in an aerosol generating device that employs other heating methods for heating, such as resistance heating, electromagnetic heating, infrared heating, microwave heating, etc. The laser heating is exemplarily illustrated in the present disclosure as an example.
The aerosol generating device is used to atomize an aerosol generating matrix to generate the aerosol for use by the user. The aerosol generating matrix includes, but is not limited to, a pharmaceutical, a nicotine-containing material or a nicotine-free material. The aerosol generating matrix may be a solid material in which plants are primarily used as raw materials (such as tobacco), added with the corresponding aerosol-forming agent and flavoring material.
The aerosol generating substrate 1 refers to the substrate capable of generating the aerosol, and the aerosol generating substrate 1 may include the aerosol generating matrix.
The aerosol generating substrate 1 is accommodated in the accommodating chamber. The accommodating chamber provides installation space and protection for the aerosol generating substrate 1, which reduces the probability of damage to the aerosol generating substrate 1. Furthermore, the heat generated by the aerosol generating substrate 1 during heating is not directly transferred to the user, thereby enhancing the operating reliability of the aerosol generating device.
It should be understood that the cross-sectional shape of the aerosol generating substrate 1 is not limited. In some examples, the cross-sectional shape of the aerosol generating substrate 1 is substantially circular, that is, the overall shape of the aerosol generating substrate 1 is substantially cylindrical. In other examples, the cross-sectional shape of the aerosol generating substrate 1 is substantially rectangular, that is, the overall shape of the aerosol generating substrate 1 is substantially rectangular cylindrical, etc.
The aerosol generating substrate 1 may be a replaceable article, that is, the aerosol generating substrate 1 may be detachably accommodated in the accommodating chamber. Upon completion of the atomization of the aerosol generating matrix included in the aerosol generating substrate, the used aerosol generating substrate 1 may be removed from the accommodating chamber and replaced with an unused aerosol generating substrate 1.
The aerosol generating substrate 1 includes a peripheral wall 10 for generating the aerosol, that is, the surface or interior of the peripheral wall 10 contains the aerosol generating matrix, and under the action of the laser heating assembly, the aerosol generating matrix of the surface or interior of the peripheral wall 10 is heated and atomized to generate the aerosol for use by the user.
Referring to FIGS. 1 and 2, a hollow space 1a is surrounded by the peripheral wall 10. After the aerosol generating matrix of the surface or interior of the peripheral wall 10 is heated and atomized to generate the aerosol, the aerosol may be released through the hollow space 1a, and subsequently used by the user under the action of suction negative pressure.
Referring to FIG. 2, the thickness T of the peripheral wall 10 is 0.1 millimeter (mm) to 0.4 mm, that is, the thickness T of the peripheral wall 10 ranges from 0.1 mm to 0.4 mm, for example, 0.1 mm, 0.12 mm, 0.15 mm, 0.2 mm, 0.23 mm, 0.26 mm, 0.29 mm, 0.31 mm, 0.35 mm, 0.38 mm, 0.4 mm, etc. In such way, the thickness of the peripheral wall 10 is thin; and when the peripheral wall 10 is heated, both of the surface and the interior of the peripheral wall 10 can be sufficiently heated, thereby generating the aerosol.
It should be noted that the larger the thickness of the aerosol generating substrate, the greater the structural strength of the aerosol generating substrate, and the stronger the installation stability. However, when being atomized by heating, the temperature of the interior of the peripheral wall is excessively different from the temperature of the surface of the peripheral wall; thus, the atomization consistency cannot be maintained, and the peripheral wall cannot be sufficiently heated. As such, the aerosol generating matrix contained in the peripheral wall cannot be fully utilized, which affects the generation of the aerosol. Further, the aerosol generated after the atomization lacks enough space to release, which affects the discharge of the aerosol and subsequently affects the user experience. Additionally, the smaller the thickness of the aerosol generating substrate, the closer the heating temperature of the peripheral wall is to the heating temperature of the surface during the atomization by heating; and thus, the atomization consistency is high. However, the structural stability of the aerosol generating substrate can be reduced, which is prone to deformation and is detrimental to the structural stability of the aerosol generating device.
Therefore, in the aerosol generating substrate 1 provided by the embodiments of the present disclosure, the peripheral wall 10 surrounds the hollow space 1a. On the one hand, the weight and thickness of the aerosol generating substrate 1 can be reduced, which can facilitate the atomization by heating. On the other hand, upon the atomization by heating, the aerosol generated from the aerosol generating matrix of the surface or interior of the peripheral wall 10 can be directly released through the hollow space 1a for use by the user. There is sufficient space for releasing the aerosol, which can improve the utilization rate of the aerosol. The dimensional arrangement of the thickness of the peripheral wall 10 can ensure that the aerosol generating substrate 1 maintains its own structural stability, while both the surface and the interior of the peripheral wall 10 are fully heated during the heating, which can facilitate the rapid generation of the aerosol. Moreover, the aerosol generating matrix of the surface or interior of the peripheral wall 10 can be fully utilized, with a short atomization waiting time. The structure of the aerosol generating substrate 1 is simple, facilitating the manufacturing and installation as well as enhancing the user experience.
In some more preferred embodiments, the thickness of the peripheral wall 10 is 0.18 mm to 0.28 mm, for example, 0.18 mm, 0.19 mm, 0.2 mm, 0.21 mm, 0.22 mm, 0.23 mm, 0.24 mm, 0.25 mm, 0.26 mm, 0.27 mm, 0.28 mm, etc. In the embodiment, the thickness of the peripheral wall 10 is more reasonable, the thickness of the peripheral wall 10 is not too large or too small. While satisfying the structural strength of the aerosol generating substrate 1, the peripheral wall 10 can be sufficiently heated during the atomization by heating, and the aerosol generation speed is rapid. In addition, the airway holes 10a can also provide sufficient space for releasing the aerosol, thereby enhancing the atomization efficiency.
In some examples, referring to FIGS. 3 to 6, the aerosol generating substrate 1 includes an inner frame 11. The inner frame 11 is disposed within the peripheral wall 10 and partitions the hollow space 1a into a plurality of airway holes 10a.
When the aerosol generating matrix of the surface or interior of the peripheral wall 10 is heated and atomized to generate the aerosol, the aerosol can be released through the airway holes 10a. After entering the airway holes 10a, the aerosol can move in the airway holes 10a, and a negative pressure can be generated when the user inhales, which causes the aerosol to flow out, under the action of the negative pressure, through the airway holes 10a for use by the user. In addition, the inner frame 11 can also provide a certain structural support for the peripheral wall 10, which can enhance the structural stability of the aerosol generating substrate 1.
It should be noted that the inner wall of the airway holes 10a is relatively smooth, that is, there is no corner or convex portion within the airway holes 10a. As such, after the atomization, the generated aerosol can rapidly flow out from the airway holes 10a under the action of suction negative pressure. This can reduce the probability of the aerosol depositing at the corner or convex portion of the airway holes 10a and forming condensate that could affect the user experience, which can further enhance the atomization reliability.
It should be understood that the airway hole 10a penetrates at least one end of the aerosol generating substrate 1. Specifically, the airway hole 10a may penetrate one end of the aerosol generating substrate 1, or may penetrate both ends of the aerosol generating substrate 1. In some examples, the airway hole 10a penetrates at least one end of the aerosol generating substrate 1 along an axial direction. That is, the airway hole 10a penetrates one end or both ends of the aerosol generating substrate 1 along the axial direction. When the airway hole 10a penetrates one end of the aerosol generating substrate 1 along the axial direction, the airway hole 10a is a blind hole, which is open at one end and closed at the other end. The aerosol generated by atomizing the aerosol generating matrix of the surface or interior of the peripheral wall 10 can flow out, under the action of suction negative pressure, from the open end for use by the user. When the airway hole 10a penetrates both ends of the aerosol generating substrate 1 along the axial direction, the airway hole 10a is a through hole, and both ends thereof are open. The aerosol generated by atomizing the aerosol generating matrix of the surface or interior of the peripheral wall 10 can flow out, under the action of suction negative pressure, from both ends for use by the user. Thus, the flow rate of the aerosol can be faster, and sufficient aerosol can be provided for the use by the user per unit time.
It should be noted that the plurality of airway holes 10a may include two, three, or more than three airway holes 10a. The shape of the airway holes 10a is not limited, and may be a sector shape, a rectangle shape, or an ellipse shape, or any other shape that is not limited herein.
In some embodiments, the thickness of the peripheral wall 10 is set uniformly.
In such way, during the atomization by heating, the aerosol generating matrix of the surface or interior of the peripheral wall 10 can be heated uniformly, which can enhance the uniformity of atomization. It can also reduce the probability of affecting the user's usage experience due to uneven thickness of the peripheral wall 10 causing either insufficient heating/atomization or excessive heating of the aerosol generating matrix that generates undesirable substances, and further improve the operating reliability of the aerosol generating device.
The cross-sectional shape of the peripheral wall 10 is not limited, and may be any an annular shape, a rectangular shape, or any other shape. In some embodiments, as shown in FIGS. 1 to 4, the cross section of the peripheral wall 10 is an annular shape, so that the structural requirements for the aerosol generating substrate 1 can be reduced, the manufacturing complexity of the peripheral wall 10 can be reduced, and the overall assembly difficulty of the aerosol generating device can also be reduced.
The specific structure of the inner frame 11 is not limited.
In some embodiments, referring to FIGS. 3 to 6, the inner frame 11 includes a plurality of supports 111, the first ends 111a of the plurality of supports 111 are directly or indirectly interconnected. The second ends 111b of the plurality of supports 111 are spaced apart and connected to an inner wall of the peripheral wall 10. Each two adjacent of the plurality of supports 111 and the inner wall of the peripheral wall 10 defines one airway hole 10a.
The airway hole 10a is defined by the cooperation of the supports 111 and the peripheral wall 10. While providing certain support for the peripheral wall 10, the supports 111 also can simplify the structure of the aerosol generating substrate 1. The plurality of supports 111 may be uniformly arranged in the peripheral wall 10, so that the area of the airway hole 10a defined by any two adjacent of the plurality of supports 111 and the inner wall of the peripheral wall 10 can be the same. Thus, when the aerosol generated during the atomization of the peripheral wall 10 is released toward different airway holes 10a, there can be uniform and sufficient release space.
It should be understood that the plurality of supports 111 may include two, three, or more than three supports 111.
It should be understood that the first ends 111a of the plurality of supports 111 are directly or indirectly interconnected. In some embodiments, the first ends 111a of the plurality of supports 111 are directly interconnected, that is, the first ends 111a of the plurality of supports 111 converge together. As such, the area of the airway hole 10a defined by each two adjacent of the plurality of supports 111 and the inner wall of the peripheral wall 10 is also larger, which can facilitate the release of aerosol. In other embodiments, the first ends 111a of the plurality of supports 111 are indirectly interconnected, that is, the first ends 111a of the plurality of supports 111 are interconnected via other structures. As such, the overall stability of the aerosol generating substrate 1 can be enhanced.
In some embodiments, referring to FIGS. 3-6, the inner frame 11 includes an inner cylinder 112. The inner cylinder 112 is hollow and defines at least one airway hole 10a, and the plurality of supports 111 are radially distributed around the inner cylinder 112.
In the embodiment, the first ends 111a of the plurality of supports 111 are interconnected via the inner cylinder 112, so that the inner cylinder 112 can provide support for the plurality of supports 111 and also enhance the structural stability of the aerosol generating substrate 1.
It should be understood that the plurality of supports 111 are radially distributed around the inner cylinder 112, that is, the inner cylinder 112 is arranged close to the central portion of the aerosol generating substrate 1. The radial distribution refers to the circumferential arrangement of the plurality of supports 111 around the inner cylinder 112. The supports 111 may extend in a straight line or a curve, which is not limited herein.
The inner cylinder 112 is hollow. On one hand, the overall weight of the aerosol generating substrate 1 can be reduced. While satisfying the structural stability, the aerosol generating substrate 1 can be set in lightweight manner, thereby enhancing the user experience. On the other hand, the inner cylinder 112 is disposed close to the center of the aerosol generating substrate 1, which can facilitate installation cooperation with the aerosol generating device, and enhance the installation stability without affecting the peripheral wall 10 to release the aerosol toward the corresponding airway hole(s) 10a. In another aspect, the inner cylinder 112 may also contain the aerosol generating matrix, so that the inner cylinder 112 can also release the aerosol toward the surrounding airway holes 10a under the action of the laser heating assembly, thereby improving the aerosol concentration and atomization efficiency.
The cross-sectional shape of the inner cylinder 112 is not limited, and may be an annular shape, a rectangular shape, a polygonal shape, or any other shape that is not limited herein.
It should be noted that the inner cylinder 112 defining at least one airway hole 10a means that the inner cylinder 112 may define one airway hole 10a, or may define two or more airway holes 10a.
It can be understood that, in some embodiments, the aerosol generating substrate 1 may have only the peripheral wall 10 containing the aerosol generating matrix. That is, in the aerosol generating substrate 1, only the peripheral wall 10 is atomized by heating to generate the aerosol, and the inner frame 11 does not contain the aerosol generating matrix and also does not generate the aerosol. In another embodiment, both the peripheral wall 10 and the inner frame 11 contain the aerosol generating matrix, and both of which can be atomized by heating. A first laser emission source is disposed on an outer side of the peripheral wall 10, and is configured to emit laser to the peripheral wall 10 to atomize the aerosol generating matrix of the surface or interior of the peripheral wall 10 to generate the aerosol. A heating component may be provided in the airway hole 10a to heat and atomize the inner frame 11.
The method for heating the aerosol generating substrate 1 is not limited.
In some examples, the laser heating assembly includes the first laser emission source disposed on the outer side of the peripheral wall 10 for emitting the laser toward the peripheral wall 10.
That is, the peripheral wall 10 receives the laser emitted by the first laser emission source. When the laser irradiates to the peripheral wall 10 (or an light absorbing layer on the peripheral wall 10), the peripheral wall 10 is heated up until it reaches the atomization temperature, and the aerosol generating matrix of the surface or interior of the peripheral wall 10 is atomized at the atomization temperature, thereby generating the aerosol for use by the user.
In the embodiment, the laser atomization method is adopted, and the laser heating offers high efficiency and rapid temperature rise. The aerosol generating matrix of the surface or interior of the aerosol generating substrate 1 can be rapidly heated and atomized to generate the aerosol. This can result in short atomization waiting time, eliminate the need for preheating the aerosol generating substrate 1, achieve high atomization efficiency, simplify the structure of the aerosol generating device, and provide a superior user experience. Additionally, the heating method of the peripheral wall 10 by the first laser emission source is non-contact heating atomization, so that there is no problem that the substrate adheres to the surface of the first laser emission source after carbonization. Thus, the performance stability of the first laser emission source and the aerosol generating device can be maintained. Simultaneously, it can also reduce the risk of harmful substances such as heavy metals due to heating of the aerosol generating substrate 1 by using a heating wire or a heating net, thereby, enhancing the stability and safety of the atomization by heating of the aerosol generating device.
It can be understood that the first laser emission source is disposed on the outer side of the peripheral wall 10, and the magnitude of the laser heating energy can be adjusted by adjusting the distance between the first laser emission source and the peripheral wall 10. As such, the real-time adjustment of the heating temperature for the aerosol generating substrate 1 can be facilitated, the accuracy of the heating temperature for the aerosol generating substrate 1 can be improved, the atomization consistency of the aerosol generating substrate 1 can be maintained, and the user experience can be enhanced.
In other embodiments, the laser heating assembly includes a second laser emission source. The second laser emission source is disposed within at least one airway hole 10a, and is configured to emit the laser toward the inner wall of the airway hole 10a.
That is, the first laser emission source and the second laser emission source can operate together to heat and atomize the aerosol generating substrate 1. Both of the peripheral wall 10 and the inner frame 11 contain the aerosol generating matrix, which can be heated and atomized. Therefore, more aerosols can be generated by atomization at the same time, and all of the aerosols generated by atomization can be released in the airway holes 10a and discharged for use by the user, which can achieve high atomization efficiency. Of course, in some embodiments, the first laser emission source may not be used, and the aerosol generating matrix may be heated by using the second laser emission source.
When the second laser emission source is disposed within the airway holes 10a defined by the inner cylinder 112, the laser emitted by the second laser emission source irradiates the inner wall of the inner cylinder 112, and the aerosol generated by atomization can be released toward the airway holes 10a on the peripheral side, so that the release of the aerosol can be more uniform without affecting the peripheral wall 10.
In some embodiments, the aerosol generating device includes a rotation assembly, and the aerosol generating substrate 1 is rotatable driven by the rotation assembly.
That is, the aerosol generating substrate 1, when being used, can rotate under the drive of the rotation assembly. This enables each time a portion of the peripheral wall 10 to receive the laser emitted by the first laser emission source (or the second laser emission source) for heating and atomization to generate the aerosol; and the generated aerosol is released to the corresponding airway hole(s) 10a, which may be one or more airway holes. While the other portion of the peripheral wall 10 is not heated and does not generate the aerosol. Upon the completion of heating and atomizing the portion of the peripheral wall 10, the rotation assembly drives the aerosol generating substrate 1 to rotate, causing the other portion of the peripheral wall 10 to receive the laser emitted by the first laser emission source (or the second laser emission source), to further generate the aerosol. Thus, even in a case that the irradiation range of the first laser emission source (or the second laser emission source) is fixed, the peripheral wall 10 can be sufficiently heated.
In some embodiments, an outer surface of the peripheral wall 10 includes a light absorbing layer, or an interior of the peripheral wall 10 includes a light absorbing material.
Specifically, the light absorbing layer may be a black aluminum foil, a carbon nanotube, or the like. The light absorbing material may be a natural material such as a tobacco extract containing tobacco melanin, or a cocoa shell pigment. The light absorbing material may also be an inorganic material such as graphene or carbon black as long as it can absorb light.
In the embodiment, the outer surface of the peripheral wall 10 is provided with the light absorbing layer, or the interior of the peripheral wall 10 is provided with the light absorbing material. Thus, the light absorption efficiency of the peripheral wall 10 can be improved, and the aerosol generating matrix of the surface or interior of the peripheral wall 10 can be heated and atomized more intensively and rapidly, thereby improving the atomization efficiency.
Specifically, when the peripheral wall 10 receives the laser emitted by the first laser emission source, the laser emitted from the first laser emission source can be sufficiently received with the assistance of the light absorbing layer or the light absorbing material, and the leakage of the laser can be reduced. As such, the peripheral wall 10 can heat up more rapidly, the atomization temperature can be reached faster, and the waiting time required for atomization can be shorter.
It should be understood that the light absorbing layer may also be provided on the inner surface of the peripheral wall 10 and the surface of the inner frame 11, and the interior of the inner frame 11 may also have the light absorbing material. Thus, when the second laser emission source is provided in the airway holes 10a, the laser emitted by the second laser emission source can also be sufficiently received with the assistance of the light absorbing layer or the light absorbing material, thereby improving the utilization rate of the laser as well as increasing the overall atomization speed of the aerosol generating substrate 1.
The molding method of the aerosol generating substrate 1 is not limited. In some embodiments, the aerosol generating substrate 1 is an integrated structure. That is, the peripheral wall 10 and the inner frame 11 are integrally formed, and the peripheral wall 10 and the inner frame 11 can be integrally formed by using the same material, thereby simplifying the molding method and facilitating the inner frame 11 to provide structural support for the peripheral wall 10 during molding. Further, the structural stability of the aerosol generating substrate 1 can be also improved. Since the inner frame 11 and the peripheral wall 10 are made of the same material, the concentration of the aerosol generating matrix can be increased. Both the inner frame 11 and the peripheral wall 10 can be heated and atomized under the action of the laser heating assembly, and the aerosol can be released toward the airway holes 10a, thereby improving the atomization efficiency and the volume of the generated aerosol, and further enhancing the user experience.
In other embodiments, the aerosol generating substrate 1 has a split-type structure. That is, the peripheral wall 10 and the inner frame 11 are two independent components, which are assembled into the aerosol generating substrate 1 after molding. The peripheral wall 10 and the inner frame 11 may be made of the same material or different materials.
In some embodiments, the aerosol generating substrate 1 is an integrated extrusion structure.
Extrusion refers to a molding method that uses the extrusion effect of a screw or plunger to force a heated and melted polymer material through a die head mold under the push of pressure to form a continuous profile with a constant cross section. In the embodiment, the aerosol generating substrate 1 adopts an integrated extrusion molding method, which has high production efficiency, fast molding speed and low production cost.
In the description of the present disclosure, a description with reference to the terms "an embodiment", "some embodiments", "examples", "specific example", or "some examples" or the like means that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the embodiments of the present disclosure. In the present disclosure, the illustrative expression of the above terms is not necessarily directed to the same embodiment or example. Moreover, the specific feature, structure, material, or characteristic described may be combined in any one or more embodiments or examples in a suitable manner. Furthermore, those skilled in the art can combine different embodiments or examples described in the present disclosure and features of different embodiments or examples without contradicting each other.
The foregoing is intended to illustrate merely preferred embodiments of the present disclosure, and is not intended to limit the present disclosure. Those skilled in the art can appreciate that various modifications and variations can be made to the present disclosure. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present disclosure shall be included within the scope of protection of the present disclosure.

Claims

An aerosol generating substrate, comprising a peripheral wall configured for being heated to generate aerosol, wherein the peripheral wall is hollowly arranged, a hollow space is surrounded by the peripheral wall, and a thickness of the peripheral wall is 0.1 mm to 0.4 mm.
The aerosol generating substrate of claim 1, wherein the thickness of the peripheral wall is 0.18 mm to 0.28 mm.
The aerosol generating substrate of claim 1, wherein the thickness of the peripheral wall is set uniformly.
The aerosol generating substrate of claim 1, wherein a cross section of the peripheral wall is an annular shape.
The aerosol generating substrate of claim 1, further comprising an inner frame, wherein the inner frame is disposed within the peripheral wall and partitions the hollow space into a plurality of airway holes.
The aerosol generating substrate of claim 5, wherein the inner frame comprises a plurality of supports, first ends of the plurality of supports are directly or indirectly interconnected, second ends of the plurality of supports are spaced apart and connected to an inner wall of the peripheral wall, and each two adjacent of the plurality of supports and the inner wall of the peripheral wall defines one of the airway holes.
The aerosol generating substrate of claim 6, wherein the inner frame comprises an inner cylinder, the inner cylinder is hollow and defines at least one of the airway holes, and the plurality of supports are radially distributed around the inner cylinder.
The aerosol generating substrate of claim 1, wherein the aerosol generating substrate is an integrated structure.
The aerosol generating substrate of claim 1, wherein the aerosol generating substrate is an integrated extrusion structure.
The aerosol generating substrate of claim 1, wherein an outer surface of the peripheral wall comprises a light absorbing layer; or an interior of the peripheral wall comprises a light absorbing material.
An aerosol generating device, comprising:
the aerosol generating substrate according to any one of claims 1 to 10;

a laser heating assembly, configured to perform laser heating and atomization on the aerosol generating substrate;

wherein the aerosol generating device comprises an accommodating chamber, and the aerosol generating substrate is accommodated in the accommodating chamber.
The aerosol generating device of claim 11, wherein the laser heating assembly comprises a first laser emission source, and the first laser emission source is disposed on an outer side of the peripheral wall and is configured to emit laser toward the peripheral wall.
The aerosol generating device of claim 11, wherein the laser heating assembly comprises a second laser emission source, the aerosol generating substrate comprises an inner frame, the inner frame is disposed within the peripheral wall and partitions a space of the peripheral wall into a plurality of airway holes, and the second laser emission source is disposed within at least one of the airway holes and is configured to emit laser toward an inner wall of the airway hole.
The aerosol generating device of claim 11, further comprising a rotation assembly, wherein the aerosol generating substrate is rotatable driven by the rotation assembly.