Aerosol-generating article

Abstract

This application discloses an aerosol generating article, comprising: a shell; and an aerosol generating matrix segment disposed within the shell. The aerosol generating matrix segment is configured to volatilize and generate aerosols upon heating. The aerosol generating matrix segment has a first end and a second end disposed opposite each other in a longitudinal direction, and a side surface extending between the first end and the second end. The shell includes a first portion covering the side surface and a second portion bent from the first portion, the second portion at least partially covering the end face of the first end. This method effectively prevents the solid matrix remaining after heating the aerosol generating article from detaching from the first end, thereby reducing the cleaning frequency of the aerosol generating device used with the aerosol generating article.

Description

[Technical Field]

[0001] This application relates to the field of aerosol technology, and more particularly to an aerosol generating article. [Background Technology]

[0002] Traditional tobacco-generating matrices (e.g., cigarettes, cigars, etc.) produce tobacco smoke by burning tobacco during use. Existing technologies offer alternatives to these traditional tobacco-generating matrices by releasing compounds through heating without combustion. Examples of such products are aerosol generating devices, which typically include a housing chamber for housing the aerosol-generating article used in conjunction with the device, and a heating element for heating the article to produce an aerosol for the user to inhale.

[0003] Aerosol generating products are filled with a solid aerosol generating matrix (such as tobacco). When heated, the aerosol generating matrix volatilizes to produce aerosols, which users can inhale by sucking them into the product. However, in existing aerosol generating products, the solid matrix remaining after heating easily detaches from the product; or, during the removal of the product from its housing after heating, the remaining solid matrix detaches from the bottom, necessitating frequent cleaning of the aerosol generating device. [Utility Model Content]

[0004] This application provides an aerosol generating article to solve the technical problem that the solid matrix remaining after heating of existing aerosol generating articles is easy to fall off from the bottom of the aerosol generating article, thus requiring frequent cleaning of the aerosol generating device used with it.

[0005] At least one embodiment of this application provides an aerosol-generating article, comprising:

[0006] case;

[0007] An aerosol generating matrix segment is disposed within the housing. The aerosol generating matrix segment is configured to volatilize and generate aerosols when heated. The aerosol generating matrix segment has a first end and a second end disposed opposite to each other in the longitudinal direction, and a side surface extending between the first end and the second end.

[0008] The housing includes a first portion covering the side surface and a second portion bent from the first portion, the second portion at least partially covering the end face of the first end.

[0009] In some embodiments, the second portion covers 50% to 98% of the area of ​​the first end face.

[0010] In some embodiments, the second portion is formed by combining a plurality of adjacent covering units.

[0011] In some embodiments, each of the covering units has the same shape.

[0012] In some embodiments, the area of ​​each of the covering units is the same.

[0013] In some embodiments, the second part has at least one first vent.

[0014] In some embodiments, the first vent has a diameter of no more than 0.8 mm. 2 The opening area.

[0015] In some embodiments, the first vent has a hydraulic diameter of 0.01 mm to 1 mm.

[0016] In some embodiments, the aerosol generating matrix segment includes at least one second vent connecting the first end and the second end, the second vent communicating with the first vent.

[0017] In some embodiments, the second vent has a diameter of 0.007 mm. 2 ~7.2mm 2 The opening area.

[0018] In some embodiments, the second vent has a hydraulic diameter of 0.05 mm to 1.5 mm.

[0019] In some embodiments, the second part consists of a plurality of adjacent covering units, each of which has at least one of the first vent holes.

[0020] In some embodiments, the aerosol generating matrix segment further includes a through hole connecting the first end and the second end, the through hole having the same longitudinal axis as the aerosol generating matrix segment, and the second portion being provided with a clearance notch for avoiding the through hole.

[0021] In some embodiments, the opening area of ​​the clearance notch is larger than the opening area of ​​the through hole, and the aerosol generating matrix section further includes at least one second vent hole that connects the first end and the second end and is spaced apart from the through hole.

[0022] In some embodiments, the second vent includes a plurality of second vents evenly surrounding the through hole.

[0023] In some embodiments, the second portion consists of a plurality of adjacent covering units, and the clearance gap is formed by the plurality of said covering units enclosing each other.

[0024] In some embodiments, the through-hole has a diameter of 0.7 mm. 2 ~20.0mm 2 The opening area.

[0025] In some embodiments, the through hole has a hydraulic diameter of 1.0 mm to 5.0 mm.

[0026] In some embodiments, the first portion and the side surface define an airflow channel connecting the first end and the second end.

[0027] In some embodiments, the side surface includes at least one recessed region connecting the first end and the second end, the first portion and the recessed region defining the airflow channel.

[0028] In some embodiments, the airflow channel has a diameter of 0.007 mm. 2 ~7.2mm 2 The cross-sectional area; or, the airflow channel has a hydraulic diameter of 0.05 mm to 1.5 mm.

[0029] The aerosol generating product provided in the above embodiments can effectively prevent the solid matrix remaining after the aerosol generating product is heated from falling off from the first end by bending the second part of the shell of the aerosol generating product to at least partially cover the end face of the first end of the aerosol generating matrix section, thereby reducing the cleaning frequency of the aerosol generating device used in conjunction with the aerosol generating product. [Attached Image Description]

[0030] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0031] Figure 1 A schematic cross-sectional view of the second part of the aerosol-generating article shell provided in an embodiment of this application before bending;

[0032] Figure 2 for Figure 1 A schematic cross-sectional view of the second part of the shell of the aerosol-generated product after bending.

[0033] Figure 3 for Figure 2 A bottom view of the product generated from aerosols;

[0034] Figure 4 for Figure 3 A schematic diagram of the product generated from aerosols, hidden within its shell.

[0035] Figure 5 A bottom view of an aerosol-generated article provided in another embodiment of this application;

[0036] Figure 6 A bottom view of an aerosol-generated article with its shell concealed, provided in another embodiment of this application; 【Detailed Implementation Methods】

[0037] To facilitate understanding of this application, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" or "attached to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. 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 may exist between them. The terms "upper," "lower," "left," "right," "inner," "outer," and similar expressions used in this specification are for illustrative purposes only.

[0038] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0039] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0040] In the embodiments of this application, "installation" includes fixing or restricting a component or device to a specific position or place by means of welding, screwing, snapping, bonding, etc. The component or device may remain stationary in the specific position or place or may move within a limited range. After the component or device is fixed or restricted to the specific position or place, it may or may not be disassembled. This application does not impose any restrictions.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0042] One embodiment of this application provides an aerosol-generating article 100, such as... Figure 1 As shown, the aerosol generating product 100 includes a shell 10, and a matrix section 20, a cooling section 30, and a filtration section 40 sequentially disposed within the shell 10 along its length. The matrix section 20 contains an aerosol generating matrix section 21 that can volatilize upon heating to generate aerosols. The aerosols escape from the matrix section 20 and enter the cooling section 30 for cooling. The filtration section 40 is filled with a solid matrix 41 for filtering the aerosols. The cooled aerosols further enter the filtration section 40 for filtration, and the user can inhale the aerosols by suctioning them from the filtration section 40.

[0043] In practical use, the aerosol generating product 100 is inserted into the receiving chamber of the aerosol generating device that is used in conjunction with the aerosol generating product 100. Then, the aerosol generating device is started, and the aerosol generating device begins to heat the aerosol generating product 100. The aerosol generating matrix section 21 is heated and volatilizes to generate aerosol, which then flows along the airflow channel inside the aerosol generating product 100 to the filter section 40. The user can then draw it in through the filter section 40.

[0044] Furthermore, the aerosol generation matrix segment 21 is a continuous, monolithic columnar structure. In some embodiments, the continuous, monolithic aerosol generation matrix segment 21 can be prepared by the following method:

[0045] First, different material components are blended into a thick slurry. In some embodiments, the aerosol generating matrix can be a composition of plant powder, fiber, adhesive, smoke generator, fragrance and water.

[0046] The block slurry was prepared by microwave drying under vacuum conditions, and then the block slurry was crushed into granular slurry and die-cast into columnar slurry in a mold.

[0047] After demolding, the aerosol generation matrix segment 21 can be prepared by drying and shaping in a limiting fixture.

[0048] In some embodiments, the aerosol generation matrix segment 21 has abundant micropores in both the axial and radial directions, through which the volatilized aerosols can be transported. The cross-sectional area of ​​a single micropore is 3 nm. 2 ~2000um 2 The hydraulic diameter is 1nm to 25um, and the microporous structure is mainly formed by the natural expansion of the slurry volume after demolding and drying and shaping in the limiting fixture.

[0049] In some embodiments, the aerosol generating matrix segment 21 may further include one or more of the following: vanilla leaves, tobacco leaves, homogenized tobacco, expanded tobacco, powder, granules, fragments, strips, or sheets; or, the aerosol generating matrix segment 21 may further contain additional tobacco or non-tobacco volatile aroma compounds to be released when the matrix is ​​heated.

[0050] In some embodiments, a vent 31 for external air to enter may be provided on the cooling section 30. When the high-temperature aerosol generated by heat volatilization escapes from the matrix section 20 and enters the cooling section 30, it will mix with the cold air entering the cooling section 30 to achieve the purpose of reducing the temperature of the aerosol.

[0051] In some embodiments, the aerosol generating matrix segment 21 has a length of 5 mm to 30 mm.

[0052] In some embodiments, the porosity of the aerosol generating matrix section 21 is 5% to 95% so that the aerosols generated by volatilization can escape smoothly from the aerosol generating matrix section 21.

[0053] In some embodiments, the porosity of the aerosol generation matrix segment 21 is 10% to 85%.

[0054] In some embodiments, the porosity of the aerosol generation matrix segment 21 is 15% to 70%.

[0055] In some embodiments, the solid matrix 41 for filtering aerosols filled in the filter section 40 may be any one of cellulose acetate, polypropylene, polylactic acid, or PET fiber.

[0056] In some embodiments, the filter section 40 has a longitudinal extension length of 5 mm to 20 mm.

[0057] In some embodiments, the cooling section 30 has a longitudinal extension length of 10 mm to 60 mm.

[0058] In some embodiments, the aerosol generating matrix segment 21 has a longitudinal extension length of 5 mm to 30 mm.

[0059] Furthermore, in some embodiments, the aerosol generating article 100 has a longitudinal extension length of 40 mm to 100 mm. Alternatively, in some embodiments, the aerosol generating article 100 has a circumference of 15 mm to 50 mm.

[0060] In some embodiments, the aerosol generating article 100 may not require the cooling section 30 and the filtration section 40; only the matrix section 20 is needed. In this case, the aerosol generating device used with the aerosol generating article 100 will have a nozzle connected to the receiving chamber containing the aerosol generating article 100. In actual use, the user first opens the cover used to shield the receiving chamber, then places the aerosol generating article 100 into the receiving chamber, and then starts the aerosol generating device to heat the aerosol generating article 100. The aerosol generating matrix in the matrix section 20 evaporates upon heating, generating aerosols that are released into the receiving chamber. The user can then inhale the aerosol by sucking it through the nozzle of the aerosol generating device.

[0061] In some embodiments, such as Figure 1 and Figure 2 As shown, the aerosol generating matrix segment 21 has a first end 211 and a second end 212 disposed opposite each other in the longitudinal direction, and a side surface 213 extending between the first end 211 and the second end 212. The housing 10 includes a first portion 11 extending in the longitudinal direction and covering the side surface 213, and a second portion 12 bent from the first portion 11 and extending in the radial direction. The second portion 12 at least partially covers the end face of the first end 211. Figure 1 The second part 12 shown is a schematic diagram before bending, at this time from Figure 1 It can be seen that the second part 12 extends from the end face of the first end 211, and Figure 2 The second part 12 shown is a schematic diagram after bending, at which point the second part 12 covers the end face of the first end 211.

[0062] In this embodiment, during use, the aerosol-generating article 100 is placed into the aerosol-generating device, and the end face of the first end 211 of the aerosol production matrix section 21 is brought into contact with the aerosol-generating device, thereby holding the aerosol-generating article 100 within the aerosol-generating device. Since the second part 12 of the shell 10 at least partially covers the end face of the first end 211, it effectively prevents residual solid matter from falling from the first end 211 into the aerosol-generating device during or after heating, thereby reducing the frequency of cleaning the aerosol-generating device.

[0063] In some embodiments, the material of the housing 10 may be any one of cellulose paper, metal foil, metal foil composite cellulose paper, polyethylene composite cellulose paper, etc.

[0064] In some embodiments, the second portion 12 covers 50% to 98% of the end face area of ​​the first end 211.

[0065] In some embodiments, such as Figure 3As shown, the second part 12 is cut into multiple covering units 121. That is, the second part 12 is composed of multiple independent and adjacent covering units 121. Each covering unit 121 is independently bent and covers the end face of the first end 211 in the radial direction. In this embodiment, the wrinkles generated when the second part 12 is bent as a whole without being cut can be reduced.

[0066] In some embodiments, an adhesive may be applied to the second portion 12, which will adhere to the end face of the first end 211 when the second portion 12 is bent and covers the end face of the first end 211, thereby being advantageous in preventing solid substances remaining on or after heating from falling off the first end 211.

[0067] And, in some embodiments, such as Figure 3 As shown, each covering unit 121 has the same shape so that after bending, the end faces of two adjacent covering units 121 can fit together at the first end 211.

[0068] And, in some embodiments, such as Figure 3 As shown, each covering unit 121 has the same area under the condition of the same shape, so that after bending, the end faces of two adjacent covering units 121 at the first end 211 can fit together completely.

[0069] In some embodiments, such as Figure 3 As shown, the second part 12 has at least one first vent hole 122 so that air passes through the first vent hole 122 and enters the aerosol generation matrix section 21. Then, when the user is suctioning, the air entering the aerosol generation matrix section 21 can carry the volatilized aerosol to the second end 212 and escape.

[0070] And, in some embodiments, please continue to refer to Figure 3 In conjunction with reference Figure 4 The aerosol generation matrix section 21 also includes at least one second vent 214 connecting the first end 211 and the second end 212. The second vent 214 communicates with the first vent 122, so that during suction, external air can enter the aerosol generation matrix section 21 through the first vent 122 and flow from the first end 211 to the second end 212 along the second vent 214, carrying the generated aerosol to the second end 212, and then sequentially entering the cooling section 30 and the filtration section 40. By providing the second vent 214, the suction resistance during suction can be reduced, allowing the aerosol to flow smoothly to the second end 212.

[0071] In some embodiments, the second vent 214 has a diameter of 0.007 mm. 2 ~7.2mm 2 The opening area.

[0072] In some embodiments, the second vent 214 has a hydraulic diameter of 0.05 mm to 1.5 mm.

[0073] In some embodiments, the first vent 122 has a diameter of no more than 0.8 mm. 2 The opening area.

[0074] In some embodiments, the first vent 122 has a hydraulic diameter of 0.01 mm to 1 mm.

[0075] The hydraulic diameter in the above embodiments is an equivalent diameter, defined based on the cross-sectional area and wetted perimeter of the pipe or channel. For circular pipes, the hydraulic diameter is equal to the actual diameter of the pipe. However, for non-circular pipes or channels, such as rectangular, elliptical, or annular pipes, the formula for calculating the hydraulic diameter is: D h = 4A / p, where A is the cross-sectional area of ​​the pipe or channel, and P is the wetted perimeter (i.e., the perimeter of the fluid in contact with the wall of the pipe or channel).

[0076] In some embodiments, such as Figure 3 As shown, when the second part 12 is cut into multiple independent covering units 121, at least one first vent 122 can be opened in each covering unit 121, so that the second part 12 is provided with multiple first vent 122, and correspondingly, the aerosol generating matrix section 12 is also provided with multiple second vent 214.

[0077] In some embodiments, each adjacent preset number of first vent holes 122 is connected to a second vent hole 214, thereby reducing the number of second vent holes 214 provided on the aerosol generation matrix section 12.

[0078] For example, such as Figure 3 and Figure 4 As shown, the second part 12 includes a first covering unit 121a, a second covering unit 121b, a third covering unit 121c, a fourth covering unit 121d, a fifth covering unit 121e, and a sixth covering unit 121f. Correspondingly, the first covering unit 121a is provided with a first vent 122a, the second covering unit 121b is provided with a first vent 122b, the third covering unit 121c is provided with a first vent 122c, the fourth covering unit 121d is provided with a first vent 122d, the fifth covering unit 121e is provided with a first vent 122e, and the sixth covering unit 121f is provided with a first vent 122f.

[0079] The aerosol generating matrix section 21 is provided with a second vent 214a, a first vent 214b, and a first vent 214e spaced apart. The second vent 214a extends between adjacent first vents 122a and 122b, thereby maintaining communication between adjacent first vents 122a and 122b and the second vent 214a. The second vent 214b extends between adjacent first vents 122c and 122d, thereby maintaining communication between adjacent first vents 122c and 122d and the second vent 214b. Similarly, the second vent 214c extends between adjacent first vents 122e and 122f, thereby maintaining communication between adjacent first vents 122e and 122f and the second vent 214c. Therefore, in this way, it is only necessary to set three second vents 214 on the aerosol generation matrix section 21.

[0080] It is easy to understand that each second vent 214 can also be connected to a larger number of adjacent first vents 122, and is not limited to two adjacent numbers of first vents 122 in the above embodiment. If the number of first vents 122 is large, each second vent 214 can be connected to a larger number of adjacent first vents 122; while if the number of first vents 122 is small, each second vent 214 will be connected to a smaller number of adjacent first vents 122.

[0081] In some embodiments, such as Figure 3 As shown, the aerosol generating matrix section 21 is also provided with a through hole 215 connecting the first end 211 and the second end 212. The longitudinal axis of the through hole 215 is the same as the longitudinal axis of the aerosol generating matrix section 21, that is, the through hole 215 is located at the axial center of the aerosol generating matrix section 21. The second part 12 is provided with a clearance notch for avoiding the through hole 215.

[0082] In this embodiment, when the aerosol generating device uses center heating to heat the aerosol generating product 100, the heating element of the aerosol generating device needs to be inserted into the aerosol generating product 100 for heating. The aforementioned clearance notch allows the heating element to be inserted into the through hole 215, thereby allowing the heating element of the aerosol generating device to be inserted into the aerosol generating product 100 for heating.

[0083] In some embodiments, such as Figure 3 As shown, the clearance gap is formed by multiple covering units 121 covering the end face of the first end 211, as... Figure 3The regular hexagon 123 formed by the enclosing of multiple covering units 121 is the clearance notch. In some other embodiments, the clearance notch may also be other shapes, such as any one of the following: circular, star-shaped, petal-shaped, or near-circular, near-regular polygonal, near-star-shaped, or near-petal-shaped.

[0084] In some embodiments, the opening area of ​​the clearance notch 123 is larger than the opening area of ​​the through hole 215, so that a partial area of ​​the end face of the first end 211 is not covered by the second part 12, such as Figure 3 The end face B region of the first end 211 shown is not covered by the second part 12. As a result, external air flows through the B region and then along the gap between the second part 12 and the end face of the first end 211 to the second vent 214, and then through the second vent 214 to the second end 212 of the aerosol generation matrix end, thereby carrying the volatilized aerosol out of the second end 212 so that the aerosol can further enter the cooling section 30 and the filtration section 40.

[0085] It should be noted that the first vent 122 can be provided in the second part 12, or it can be omitted. If the first vent 122 is provided in the second part 12, external air can enter the second vent 214 through the first vent 122 or through the gap between the second part 12 and the end face of the first end 211. If the first vent 122 is not provided in the second part 12, external air can also enter the second vent 214 through the gap between the second part 12 and the end face of the first end 211.

[0086] In some embodiments, the clearance notch formed by the plurality of covering units 121 may also coincide with the through hole 215, such as... Figure 5 The clearance notch 123a shown is completely overlapped with the through hole 215. At this time, a first vent hole 122 needs to be provided in the second part 12 so that external air can enter the second vent hole 214 through the first vent hole 122.

[0087] In some embodiments, such as Figure 6 As shown, the side surface 213 of the aerosol generating matrix end 21 has at least one recessed region 216 connecting the first end 211 and the second end 213. When the first part 11 of the shell 10 covers the side surface 213, the first part 11 and the recessed region 216 define an airflow channel through which the airflow passes. When the user uses the aerosol generating product 100 for suction, the aerosol volatilized from the aerosol generating matrix section 12 can flow from the first end 211 to the second end 212 through the airflow channel, and further flow into the cooling section 30 and the filtration section 40.

[0088] It should be noted that the recessed area can also be provided on the first part 11 of the housing 10, thereby defining the airflow channel described above by the side surface 213 of the aerosol generation matrix section 21 and the recessed area provided on the first part 11.

[0089] In some embodiments, the airflow channel has a diameter of 0.007 mm. 2 ~7.2mm 2 The cross-sectional area; or, the above airflow channel has a hydraulic diameter of 0.05 mm to 1.5 mm.

[0090] Furthermore, in some embodiments, the second vent 214 and through hole 215 on the aerosol generating matrix section 21 can be any of the following: circular, semi-circular, elliptical, rectangular, trapezoidal, triangular, fan-shaped, star-shaped, petal-shaped, regular polygonal, or near-circular, near-semi-circular, near-elliptical, near-rectangular, near-trapezoidal, near-triangular, near-fan-shaped, near-star-shaped, near-petal-shaped, near-regular polygonal, etc. The second vent 214 and the first vent 215 can present different shapes.

[0091] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them; under the concept of this application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of this application as described above, which are not provided in detail for the sake of brevity; although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An aerosol-generating product, characterized in that, include: case; An aerosol generating matrix segment is disposed within the housing. The aerosol generating matrix segment is configured to volatilize and generate aerosols when heated. The aerosol generating matrix segment has a first end and a second end disposed opposite to each other in the longitudinal direction, and a side surface extending between the first end and the second end. The housing includes a first portion covering the side surface and a second portion bent from the first portion, the second portion at least partially covering the end face of the first end.

2. The aerosol-generating product according to claim 1, characterized in that, The second portion covers 50% to 98% of the area of ​​the first end face.

3. The aerosol-generating product according to claim 1, characterized in that, The second part is formed by combining multiple adjacent covering units.

4. The aerosol-generating product according to claim 3, characterized in that, Each of the covering units has the same shape.

5. The aerosol-generating product according to claim 3, characterized in that, The area of ​​each of the aforementioned covering units is the same.

6. The aerosol-generating product according to claim 1, characterized in that, The second part has at least one first vent hole.

7. The aerosol-generating product according to claim 6, characterized in that, The first vent has a diameter of no more than 0.8 mm. 2 The opening area.

8. The aerosol-generating product according to claim 6, characterized in that, The first vent has a hydraulic diameter of 0.01 mm to 1 mm.

9. The aerosol-generating product according to claim 6, characterized in that, The aerosol generating matrix section includes at least one second vent hole connecting the first end and the second end, and the second vent hole is connected to the first vent hole.

10. The aerosol-generating article according to claim 9, characterized in that, The second vent has a diameter of 0.007 mm. 2 ~7.2mm 2 The opening area.

11. The aerosol-generating article according to claim 9, characterized in that, The second vent has a hydraulic diameter of 0.05 mm to 1.5 mm.

12. The aerosol-generating article according to any one of claims 6 to 11, characterized in that, The second part consists of a plurality of adjacent covering units, each of which has at least one of the first vent holes.

13. The aerosol-generating product according to claim 1, characterized in that, The aerosol generating matrix section further includes a through hole connecting the first end and the second end. The through hole has the same longitudinal axis as the aerosol generating matrix section, and the second part is provided with a clearance notch for avoiding the through hole.

14. The aerosol-generating article according to claim 13, characterized in that, The opening area of ​​the clearance notch is larger than the opening area of ​​the through hole, and the aerosol generating matrix section further includes at least one second vent hole that connects the first end and the second end and is spaced apart from the through hole.

15. The aerosol-generating article according to claim 14, characterized in that, The second vent includes a plurality of second vents evenly surrounding the through hole.

16. The aerosol-generating article according to claim 13, characterized in that, The second part consists of a plurality of adjacent covering units, and the clearance gap is formed by the plurality of the covering units.

17. The aerosol-generating article according to claim 13, characterized in that, The through hole has a diameter of 0.7 mm. 2 ~20.0mm 2 The opening area.

18. The aerosol-generating article according to claim 13, characterized in that, The through hole has a hydraulic diameter of 1.0 mm to 5.0 mm.

19. The aerosol-generating product according to claim 1, characterized in that, The first portion and the side surface define an airflow channel that connects the first end and the second end.

20. The aerosol-generating article according to claim 19, characterized in that, The side surface includes at least one recessed region connecting the first end and the second end, and the first portion and the recessed region define the airflow channel.

21. The aerosol-generating article according to claim 19, characterized in that, The airflow channel has a diameter of 0.007 mm. 2 ~7.2mm 2 The cross-sectional area; or, the airflow channel has a hydraulic diameter of 0.05 mm to 1.5 mm.

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