Aerosol generating system and aerosol generating product

Abstract

The utility model discloses an aerosol generating system and an aerosol generating device.The aerosol generating system comprises the aerosol generating product and an aerosol generating device, and the aerosol generating product is in a long strip shape and comprises a tobacco section filled with an aerosol generating matrix in the longitudinal length direction of the tobacco section, a hollow area extending in the length direction of the tobacco section is arranged in the aerosol generating substrate; the cooling section is connected with the tobacco section; the filtering section is connected with the cooling section, and aerosol generated by the aerosol generating substrate is suitable for flowing to the cooling section and the filtering section from the hollow area; the aerosol generating device comprises: a chamber for accommodating an aerosol generating product; and the laser heating assembly comprises a laser emitter, and the laser emitter is used for emitting laser to the aerosol generating product so as to radiate energy to the aerosol generating product, so that the aerosol generating substrate generates aerosol. In this way, the heating efficiency of the aerosol generating system can be improved.

Description

Technical field

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

[0002] Traditional tobacco products (e.g., cigarettes, cigars, etc.) burn tobacco to produce tobacco smoke during use. Products that release compounds through heating rather than combustion are already available as an alternative to these traditional tobacco products. Examples of such products are aerosol-generating devices (AGDs), which typically include a heating element and a battery. The battery provides power to the heating element, which heats the aerosol-generating article in the aerosol-generating device and vaporizes or volatilizes at least a portion of the active substance to produce an inhalable aerosol.

[0003] The heating efficiency of existing heating elements is low, which affects the puffing taste and puffing experience of aerosols. [Utility Model Content]

[0004] The present application provides an aerosol generating system to improve the heating efficiency of an aerosol generating device in heating an aerosol generating article to generate aerosol.

[0005] At least one embodiment of the present application provides an aerosol generating system, comprising an aerosol generating article and an aerosol generating device for heating the aerosol generating article to generate an aerosol, wherein the aerosol generating article is in an elongated strip shape and comprises, in its longitudinal direction:

[0006] a tobacco segment, wherein the tobacco segment is filled with an aerosol-generating matrix, and the aerosol-generating matrix has a hollow region extending along the length of the tobacco segment;

[0007] a cooling section connected to the tobacco section; and

[0008] a filtering section, the filtering section being connected to the cooling section, wherein the aerosol generated by the aerosol generating substrate is adapted to flow from the hollow region to the cooling section and the filtering section;

[0009] The aerosol generating device comprises:

[0010] a chamber for housing the aerosol-generating article;

[0011] At least one laser heating assembly comprises a laser emitter, wherein the laser emitter is configured to emit a laser toward the aerosol-generating article to radiate energy toward the aerosol-generating article, thereby causing the aerosol-generating substrate to generate an aerosol.

[0012] In one embodiment, the aerosol generating device further comprises a driving mechanism, and the driving mechanism is used to drive the laser heating assembly to move along the circumference of the chamber and / or along the length direction of the chamber.

[0013] In one embodiment, the aerosol generating device further comprises a bracket, and there are multiple laser heating components, and the multiple laser heating components are mounted on the bracket, and the bracket is in transmission connection with the driving mechanism.

[0014] In one embodiment, a plurality of the laser heating assemblies are spaced apart along the circumference of the chamber and are located in the same plane, and the driving mechanism is used to drive the bracket to move along the length direction of the chamber.

[0015] In one embodiment, the driving mechanism is configured to simultaneously drive the laser heating assembly to move along the circumference of the chamber or the length direction of the chamber.

[0016] In one embodiment, the laser heating assembly includes a plurality of laser heating assemblies, and the plurality of laser heating assemblies are enclosed to form a hollow cylindrical body, and the aerosol generating article can be accommodated in the cylindrical body.

[0017] In one embodiment, the laser is infrared, and the laser has a wavelength of 800 nm to 1000 nm, or the laser has a wavelength of 808 nm to 980 nm.

[0018] In one embodiment, the laser heating assembly includes a light path shaping mechanism, which is used to adjust the spot shape of the laser output to the aerosol generating article.

[0019] In one embodiment, the optical path shaping mechanism includes at least one collimating element for collimating the emitted laser light, and at least one homogenizing element for homogenizing the laser light after the collimation process.

[0020] In one embodiment, the hollow area is located in the central area of ​​the tobacco segment.

[0021] In one embodiment, the laser heating assembly further includes a heat dissipation mechanism for dissipating heat from the laser emitter.

[0022] In one embodiment, the heat dissipation mechanism includes a heat dissipation plate and a plurality of heat dissipation fins provided on one side of the heat dissipation plate, the laser emitter is attached to the other side of the heat dissipation plate, and the plurality of heat dissipation fins are arranged in an array.

[0023] In one embodiment, the aerosol generating device further includes a controller and a battery cell, and the controller is used to control the battery cell to provide a constant current to the laser emitter.

[0024] In one embodiment, the laser emitter includes a semiconductor laser chip.

[0025] At least one embodiment of the present application further provides an aerosol-generating article, wherein the aerosol-generating article is in the shape of an elongated strip and comprises, in its longitudinal direction:

[0026] a tobacco segment, wherein the tobacco segment is filled with an aerosol-generating matrix, and the aerosol-generating matrix has a hollow region extending along the length of the tobacco segment;

[0027] a cooling section connected to the tobacco section; and

[0028] A filtering section is connected to the cooling section, and the aerosol generated by the aerosol generating substrate is suitable for flowing from the hollow area to the cooling section and the filtering section.

[0029] In one embodiment, it further includes:

[0030] A blocking piece is provided at one end of the tobacco section away from the cooling section and is used to block the aerosol generating matrix.

[0031] In one embodiment, the tobacco segment is provided with a plurality of air holes, the air holes extending in a radial direction of the tobacco segment, and each of the air holes is communicated with the hollow area.

[0032] The aerosol-generating system provided in the above embodiments includes an aerosol-generating article and an aerosol-generating device for heating the aerosol-generating article. The aerosol-generating device is equipped with a laser heating assembly, which enables the aerosol-generating device to heat the aerosol-generating article through laser heating, thereby improving the heating efficiency of the aerosol-generating device. Furthermore, the aerosol-generating matrix filled in the tobacco segment of the aerosol-generating article has a hollow region extending longitudinally, resulting in a thinner aerosol-generating matrix, further improving the heating efficiency of the laser heating and thereby enhancing the user's puffing taste and puffing experience.

Brief Description of the Drawings

[0033] One or more embodiments are exemplarily illustrated by corresponding drawings, which do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0034] Figure 1A schematic structural diagram of an aerosol generating system provided in one embodiment of the present application;

[0035] Figure 2 for Figure 1 Schematic diagram of the structure of the aerosol generating product;

[0036] Figure 3 A schematic structural diagram of an aerosol generating article provided in another embodiment of the present application;

[0037] Figure 4 A schematic structural diagram of an aerosol generating article provided in yet another embodiment of the present application;

[0038] Figure 5 for Figure 1 Schematic diagram of the structure of the laser heating component of the aerosol generating device;

[0039] Figure 6 A schematic structural diagram of an aerosol generating device provided in another embodiment of the present application;

[0040] Figure 7 A schematic structural diagram of an aerosol generating device provided in yet another embodiment of the present application;

[0041] Figure 8 It is a schematic structural diagram of multiple laser heating components arranged along the circumferential direction of the chamber;

[0042] Figure 9 A schematic structural diagram of an aerosol generating device provided in yet another embodiment of the present application;

[0043] Figure 10 This is a schematic structural diagram of an aerosol generating device provided in yet another embodiment of the present application. [Specific implementation method]

[0044] In order to facilitate the understanding of the present application, the present application is described in more detail below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" / "fixed to" another element, it can be directly on the other element, or one or more intermediate elements can exist therebetween. When an element is described as being "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements can exist therebetween. The terms "upper", "lower", "left", "right", "inside", "outside" and similar expressions used in this specification are for illustrative purposes only.

[0045] Unless otherwise defined, all technical and scientific terms used in this specification have the same meanings as those commonly understood by those skilled in the art to which this application belongs. The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit this application. The term "and / or" as used in this specification includes any and all combinations of one or more of the relevant listed items.

[0046] In addition, the technical features involved in different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0047] In the embodiments of the present application, the "installation" includes fixing or restricting a component or device to a specific position or place by welding, screwing, clamping, bonding, etc. The component or device can remain stationary at a specific position or place or can move within a limited range. After the component or device is fixed or restricted to a specific position or place, it may or may not be disassembled, which is not limited in the embodiments of the present application.

[0048] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0049] An embodiment of the present application provides an aerosol generating system, such as Figure 1 As shown, the aerosol generating system includes an aerosol generating device 100 and an aerosol generating article 200. The aerosol generating device 100 includes a battery cell 10, a mainboard 20, and at least one laser heating assembly 30. The mainboard 20 is provided with a controller for the aerosol generating device 100. The battery cell 10 and the laser heating assembly 30 are respectively electrically connected to the controller, so that the controller can control the battery cell 10 to provide electrical energy to the laser heating assembly 30. The aerosol generating device 100 also includes a longitudinally extending chamber 40 for accommodating the aerosol generating article 200. When the aerosol generating article 200 is accommodated in the chamber 40, the laser heating assembly 30 heats the aerosol generating article 200 in the chamber 40, causing at least a portion of the aerosol generating matrix filled in the aerosol generating article 200 to volatilize due to the heat, generating an aerosol.

[0050] The aerosol generating device 100 also includes an air channel 50 connecting the chamber 40 and the outside air. When the user inhales on the aerosol generating product 200, the outside air enters the chamber 40 through the air channel 50, and further enters the aerosol generating product 200, and then carries the aerosol in the aerosol generating product 200 to escape along the air flow channel in the aerosol generating product 200 for the user to inhale.

[0051] The aerosol-generating substrate is preferably a tobacco-containing material that releases volatile compounds from the article when heated; alternatively, it may be a non-tobacco material that can be heated and then suitable for electrically heated smoking. The aerosol-generating article substrate is preferably a solid substrate that may include one or more of powder, granules, shredded strips, ribbons, or flakes of one or more of herb leaves, tobacco leaves, homogenized tobacco, and expanded tobacco; alternatively, the solid substrate may contain additional tobacco or non-tobacco volatile flavor compounds that are released when the substrate is heated.

[0052] The laser heating component 30 is used to emit a laser to the aerosol generating product 200, and then radiate energy to the aerosol generating product 200 under the action of the laser to heat the aerosol generating product 200 to generate aerosol. Since the laser has high brightness, high energy density per unit area, and a fast heating rate for the medium, the aerosol generating product 200 can be heated to the target temperature in a very short time, and the aerosol generating product 200 can be quickly stimulated to generate a large amount of aerosol. Therefore, through laser heating, the heating efficiency is high, the taste consistency is good, the product utilization rate is high, and it can not only meet the good puffing taste, but also achieve a puffing experience of stopping and starting.

[0053] like Figure 2 As shown, the aerosol-generating article 200 is generally elongated and includes a tobacco section 211, a cooling section 211, and a filter section 213 along its longitudinal length. The aerosol-generating substrate 300 is filled in the tobacco section 211. The cooling section 211 is hollow and has multiple vents (not shown) on its outer surface for admitting outside air. The filter section 213 is filled with a filter material and is inhaled by the user. When the user inhales in the filter section 213, the aerosol generated in the tobacco section 211 flows into the cooling section 211. At this time, the high-temperature aerosol and the external cold air mix in the cooling section 211, thereby reducing the temperature of the aerosol. The cooled aerosol then flows into the filter section 213. The filter material in the filter section 213 filters the aerosol, removing some unwanted particulate matter in the aerosol. Finally, the filtered aerosol escapes from the filter section 213 for inhalation by the user.

[0054] In addition, when the aerosol generating matrix 300 is filled in the tobacco segment 211, a hollow area 2111 extending along the length direction of the tobacco segment 211 is maintained in the aerosol generating matrix 300, that is, the aerosol generating matrix 300 does not completely fill the tobacco segment 211. By setting the hollow area 211, the aerosol generating matrix 300 filled in the tobacco segment 211 can have a thinner thickness, so that it can be better stimulated to generate aerosol under the irradiation of the laser beam emitted by the laser heating component 30.

[0055] In some embodiments, as Figure 3 As shown, the aerosol-generating article 200 further includes a sealing portion 214 disposed at one end of the tobacco segment 211 and facing away from the cooling segment 212. The sealing portion 214 is used to seal the aerosol-generating matrix 300 filled in the tobacco segment 211, preventing the aerosol-generating matrix 300 from falling out of the tobacco segment 211. Furthermore, the sealing portion 214 is provided with a plurality of ventilation holes 216 for allowing external air to enter the tobacco segment 211. Alternatively, in some embodiments, the sealing portion 214 is made of a breathable material, allowing external air to enter the tobacco segment 211 through the tiny gaps in the sealing portion 214.

[0056] In some embodiments, as Figure 4 As shown, the tobacco segment 211 further includes a plurality of air holes 215 extending radially along the tobacco segment 211. One end of each air hole 215 communicates with the outside air, and the other end communicates with the hollow region 2111. This mitigates bulging of the outer surface of the tobacco segment 211 due to excessive heating of the aerosol-generating substrate 300 filled in the tobacco segment 211. Alternatively, in some embodiments, only one end of the air hole 215 needs to communicate with the hollow region 2111, and the other end of the air hole 215 does not need to communicate with the outside air.

[0057] like Figure 5 As shown, the laser heating component 30 includes a laser emitter 31, which is used to emit laser toward the aerosol generating product 200. The laser emitter 31 preferably uses a semiconductor laser chip. In some embodiments, the semiconductor laser chip can use an edge emitting chip (EEL) or a surface emitting chip (VCSEL), preferably an edge emitting chip (EEL). The semiconductor laser chip includes but is not limited to gallium arsenide (GaAs), cadmium sulfide (CdS), indium phosphide (InP), zinc sulfide (ZnS), gallium nitride (GaN) and other types.

[0058] In some embodiments, the light emitted by the laser emitter 31 is infrared light. To improve the absorption efficiency of the aerosol generating matrix and thus improve the heating efficiency, the wavelength of the infrared light is 800 nm to 1000 nm, more preferably 808 nm to 980 nm.

[0059] In some embodiments, as Figure 6 As shown, the aerosol generating device 100 further includes a driving mechanism 60, which is used to drive the laser heating component 30 to move along the circumference of the chamber 40 and / or along the length direction of the chamber 40, thereby adjusting the position of the laser heating component 30 irradiating the aerosol generating product 200, so that the aerosol generating product 200 is heated evenly, thereby improving the smoking taste.

[0060] In a specific embodiment, Figure 7 As shown, there are multiple laser heating components 30, and when the multiple laser heating components 30 are spaced apart on one side of the chamber 40 along the length direction of the chamber 30, the multiple laser heating components 30 are all installed on a longitudinally extending bracket 70, and the bracket 70 is connected to the driving mechanism 60. The driving mechanism 60 drives the bracket 70 to move along the circumference of the chamber 40, and the bracket 70 can drive the multiple laser heating components 30 to rotate around the aerosol generating product 200. In this way, the driving mechanism 60 does not need to drive the laser heating component 30 to move along the length direction of the chamber 40 to allow the aerosol generating product 200 to be evenly heated.

[0061] Or, in another specific embodiment, Figure 8 As shown, there are multiple laser heating components 30, and the multiple laser heating components 30 are arranged at circumferential intervals along the cavity 40. The multiple laser heating components 30 are installed on an annular bracket 70 and are located in the same plane. The driving mechanism 60 and the bracket 70 are transmission-connected. The driving mechanism 60 drives the bracket 70 to move along the length direction of the chamber 40, and the bracket 70 can drive the multiple laser heating components 30 to move along the length direction of the chamber 40. In this way, the driving mechanism 60 does not need to drive the laser heating component 30 to rotate around the aerosol generating product 200, and the aerosol generating product 200 can be evenly heated.

[0062] Alternatively, when there are fewer laser heating assemblies 30, for example, one or two laser heating assemblies 30, in order to uniformly heat the aerosol-generating article 200, the driving mechanism needs to drive the laser heating assemblies 30 to move along the circumference of the chamber 40 in a time-sharing manner, that is, to drive the laser heating assemblies 30 to rotate around the aerosol-generating article 200 and to move along the length of the chamber 40. Specifically, the driving mechanism can first drive the laser heating assembly 30 to rotate around the aerosol-generating article 200, then drive the laser heating assembly 30 to rise a certain distance along the length of the chamber 40, and then drive the laser heating assembly 30 to rotate around the aerosol-generating article 200 again, and repeat this process until the laser heating assembly 30 rises to a predetermined position.

[0063] Alternatively, in some embodiments, when the number of laser heating components 30 is small, each laser heating component 30 may also be driven by a separate driving mechanism, such as Figure 9 shown.

[0064] like Figure 6 As shown, the driving mechanism 60 includes a driving element 61 and a transmission member 62 connected to the driving element. The driving element 61 can be any one of a motor, a liquid cylinder or a pneumatic cylinder. The transmission member 62 can be any one or more of a screw, a lead screw or a gear connected to the driving element, so that the driving mechanism 60 can drive the laser heating component 30 to move.

[0065] For example, when the driving element 61 is a motor, the transmission member 62 is connected to the rotating shaft of the motor. The transmission member 62 can be a screw or a lead screw. The screw or lead screw can then convert the rotation of the rotating shaft into linear motion of the bracket 70, thereby enabling the laser heating assembly 30 to move along the length of the chamber 30. Alternatively, the transmission member 62 is a gear, which is connected to the rotating shaft of the motor, so that the motor can drive the gear to rotate. The bracket 70 is provided with a driven wheel that is driven by the gear. The driven wheel and the gear are meshed and driven to drive the bracket 70 to rotate, and the bracket 70 then drives the laser heating assembly 30 to rotate.

[0066] It should be noted that the driving mechanism 60 can also drive the laser heating component 30 to move in other ways, and this application does not limit the way in which the driving mechanism 60 drives the laser heating component 30 to move.

[0067] In some embodiments, as Figure 10 As shown, the aerosol generating device 100 does not need to use a driving mechanism 60 to drive the laser heating component 30 to move. The aerosol generating device 100 includes multiple laser heating components 30, and the multiple laser heating modules 30 are enclosed to form a hollow cylindrical body. When the aerosol generating product 200 is accommodated in the chamber 40, the tobacco segment 211 of the aerosol generating product 200 is accommodated in the cylindrical body, and then the multiple laser heating components 30 can heat the aerosol generating product 200 from multiple positions in the longitudinal and circumferential directions, so that the aerosol generating product 200 is heated evenly.

[0068] In some embodiments, as Figure 5 As shown, the laser heating module 30 further includes an optical path shaping mechanism 32. This mechanism is located in the laser's emission path and is used to collimate and / or homogenize the laser light emitted by the laser emitter 31, thereby adjusting the spot shape of the laser light output to the aerosol generating article 200. For example, the laser spot after processing by the optical path shaping mechanism 32 may be an annular column or an elongated strip. The optical path shaping mechanism 32 may be integrated with the laser emitter 31 or designed separately. The optical path shaping mechanism 32 may be a single component or a combination of multiple components.

[0069] In one embodiment, the optical path shaping mechanism 32 includes at least one collimating element (not shown) and at least one homogenizing element (not shown). The collimating element is used to collimate the emitted laser. In some embodiments, the collimating element can be one or more spherical mirrors, aspherical mirrors, or conical lenses; in this embodiment, an aspherical mirror is preferred. The homogenizing element is used to homogenize the laser after the collimation process. In some embodiments, the homogenizing element can be a diffraction optical lens or a refractive optical lens to homogenize the light beam through diffraction optics or refractive optics. In this embodiment, a diffraction optical lens is preferred.

[0070] The optical path shaping mechanism 32 may also include a spherical lens such as a plano-convex mirror or a biconvex mirror, or an aspherical lens such as a folding mirror or an aconic lens to change the shape, energy distribution, and transmission direction of the light beam. The collimating and homogenizing elements may be made of materials including, but not limited to, PC, glass, and resin lenses. In this embodiment, the collimating and homogenizing elements are preferably made of PC plastic and resin plastic.

[0071] In some embodiments, as Figure 3 As shown, the laser heating assembly 30 also includes a heat dissipation mechanism 33, which is used to dissipate heat for the laser emitter 31. The heat dissipation mechanism 33 uses a heat dissipation device made of a high thermal conductivity material. The heat dissipation device is in contact with the laser emitter 31, thereby dissipating the heat on the laser emitter 31 in a timely manner. The heat dissipation device can be a heat sink for supporting the laser emitter 31, or a heat dissipation fin in contact with the laser emitter 31. Alternatively, in some instances, the heat dissipation mechanism 33 can also be a combination of a heat dissipation device and a fan. By adding a fan used in conjunction with the heat dissipation device, the heat dissipation effect can be further increased. Alternatively, in some embodiments, the heat dissipation mechanism 33 includes a heat dissipation plate (not shown) and a plurality of heat dissipation fins (not shown) provided on one side of the heat dissipation plate. The laser emitter 31 is attached to the other side of the heat dissipation plate, and the plurality of heat dissipation fins are arranged in an array.

[0072] In some embodiments, as Figure 2 As shown, the hollow area 2111 is located in the central area of ​​the tobacco segment 211, that is, the hollow area 211 and the tobacco segment 211 have a common longitudinal axis. Figure 2 In the cross-section of the aerosol-generating article 200 shown, the thickness d of the aerosol-generating matrix 300 on both sides of the hollow region 2111 is substantially the same. This arrangement allows the aerosol-generating matrix 300 to be evenly filled within the tobacco segment 211, thereby ensuring uniform heating and sufficient volatilization of the aerosol-generating matrix 300, which is beneficial for improving the smoking experience. Alternatively, in some embodiments, the hollow region 2111 may be positioned offset from the longitudinal axis of the tobacco segment 211, as long as the hollow region 2111 exists within the aerosol-generating matrix 300.

[0073] In some embodiments, the controller is configured to control the laser emitter 31 in a pulsed manner. Specifically, the controller controls the battery cell 10 to provide a constant drive current to the laser emitter 31. The controller can then adjust the optical power of the laser emitter 31 by controlling the output voltage. Compared to constant voltage drive, constant current drive allows the laser emitter 31 to heat the aerosol-generating article 200 at a high frequency and low duty cycle, thereby increasing the heating rate.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Based on the concept of the present application, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present application as described above. For the sake of simplicity, they are not provided in detail. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An aerosol generating system comprising an aerosol generating article and an aerosol generating device for heating the aerosol generating article to generate an aerosol, characterized in that: The aerosol-generating article is in the form of an elongated strip and comprises, in its longitudinal direction: a tobacco segment, wherein the tobacco segment is filled with an aerosol-generating matrix, and the aerosol-generating matrix has a hollow region extending along the length of the tobacco segment; a cooling section connected to the tobacco section; and a filtering section, the filtering section being connected to the cooling section, wherein the aerosol generated by the aerosol generating substrate is adapted to flow from the hollow region to the cooling section and the filtering section; The aerosol generating device comprises: a chamber for housing the aerosol-generating article; At least one laser heating assembly comprises a laser emitter, wherein the laser emitter is configured to emit a laser toward the aerosol-generating article to radiate energy toward the aerosol-generating article, thereby causing the aerosol-generating substrate to generate an aerosol.

2. The aerosol generating system according to claim 1, wherein: The aerosol generating device further comprises a driving mechanism, which is used to drive the laser heating assembly to move along the circumference of the chamber and / or along the length direction of the chamber.

3. The aerosol generating system according to claim 2, wherein: The aerosol generating device further comprises a bracket, and there are a plurality of the laser heating components, which are mounted on the bracket, and the bracket is in transmission connection with the driving mechanism.

4. The aerosol generating system according to claim 3, wherein: The plurality of laser heating assemblies are arranged at intervals along the circumference of the chamber and are located in the same plane, and the driving mechanism is used to drive the bracket to move along the length direction of the chamber.

5. The aerosol generating system according to claim 2, wherein: The driving mechanism is configured to synchronously drive the laser heating assembly to move along the circumference of the chamber or the length direction of the chamber.

6. The aerosol generating system according to claim 1, wherein: The laser heating components include a plurality of laser heating components, which are enclosed to form a hollow cylindrical body, and the aerosol generating product can be accommodated in the cylindrical body.

7. The aerosol generating system according to claim 1, wherein: The laser is infrared light, and has a wavelength of 800 nm to 1000 nm, or has a wavelength of 808 nm to 980 nm.

8. The aerosol generating system according to claim 1, wherein: The laser heating assembly includes a light path shaping mechanism, which is used to adjust the spot shape of the laser output to the aerosol generating article.

9. The aerosol generating system according to claim 8, wherein: The optical path shaping mechanism includes at least one collimating component for collimating the emitted laser light, and at least one homogenizing component for homogenizing the laser light after the collimation process.

10. The aerosol generating system according to claim 1, wherein: The hollow area is located in the central area of ​​the tobacco segment.

11. The aerosol generating system according to claim 1, wherein: The laser heating assembly further includes a heat dissipation mechanism for dissipating heat from the laser emitter.

12. An aerosol generating system according to claim 11, characterized in that The heat dissipation mechanism includes a heat dissipation plate and a plurality of heat dissipation fins arranged on one side of the heat dissipation plate. The laser emitter is attached to the other side of the heat dissipation plate, and the plurality of heat dissipation fins are arranged in an array.

13. The aerosol generating system according to claim 1, wherein: The aerosol generating device further includes a controller and a battery cell, wherein the controller is used to control the battery cell to provide a constant current to the laser emitter.

14. The aerosol generating system according to claim 1, wherein: The laser emitter includes a semiconductor laser chip.

15. An aerosol-generating article, characterized in that The aerosol-generating article is in the form of an elongated strip and comprises, in its longitudinal direction: a tobacco segment, wherein the tobacco segment is filled with an aerosol-generating matrix, and the aerosol-generating matrix has a hollow region extending along the length of the tobacco segment; a cooling section connected to the tobacco section; and A filtering section is connected to the cooling section, and the aerosol generated by the aerosol generating substrate is suitable for flowing from the hollow area to the cooling section and the filtering section.

16. The sol-generated product according to claim 15, characterized in that Also includes: A blocking piece is provided at one end of the tobacco section away from the cooling section and is used to block the aerosol generating matrix.

17. The sol-forming product according to claim 15, wherein The tobacco segment is provided with a plurality of air holes, which extend in a radial direction of the tobacco segment, and each of the air holes is communicated with the hollow area.

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