Aerosol-generating article and aerosol-generating system

Abstract

The application discloses an aerosol generating article and an aerosol generating system. The aerosol generating article comprises a medium section and a downstream section located downstream of the medium section. A plurality of rows of air inlet holes are arranged along the axial direction of the downstream section. The inlets of the air inlet holes are arranged on the peripheral side wall of the downstream section. The plurality of rows of air inlet holes comprise a first row and a second row of air inlet holes. The cross-sectional area and / or shape of any air inlet hole in the first row is different from that of any air inlet hole in the second row. Alternatively, the opening size of any air inlet hole in the first row and that of any air inlet hole in the second row are different in the axial direction of the aerosol generating article. The aerosol generating article of the application is beneficial to improving the extraction efficiency of aerosol, the cleaning performance of the aerosol generating article, and the taste expression ability of the aerosol.

Description

Technical Field

[0001] This application relates to the field of smoke-generating products, and in particular to an aerosol-generating product and an aerosol-generating system. Background Technology

[0002] Smoke-generating products include aerosol-generating products that form aerosols by heating without combustion. During the use of an aerosol-generating product, heat is transferred from a heat source to the medium section of the aerosol-generating product, causing the medium section to release volatile compounds. These volatile compounds are carried into the air containing the aerosol-generating product when the user inhales it. As the released volatile compounds cool, they condense to form aerosols.

[0003] Aerosol-generated products in related technologies have low aerosol extraction efficiency and tend to accumulate aerosols near the lip end, leading to a series of problems such as poor appearance cleanliness and insufficient aerosol flavor expression. Utility Model Content

[0004] In view of this, the embodiments of this application aim to provide an aerosol generating product and an aerosol generating system, which are intended to improve the extraction efficiency of aerosols, the cleaning performance of the aerosol generating product, and the taste expression ability of aerosols.

[0005] To solve the above problems, the technical solution of this application embodiment is implemented as follows:

[0006] One embodiment of this application provides an aerosol generating article, which includes a medium section and a downstream section located downstream of the medium section. The downstream section is provided with multiple rows of air inlets spaced along its axial direction. The inlet of each air inlet is located on the peripheral sidewall of the downstream section. The multiple rows of air inlets include a first row and a second row of air inlets.

[0007] Wherein, the area and / or shape of the flow cross section of any of the air inlets in the first row is different from that of any of the air inlets in the second row; or, the opening size of any of the air inlets in the first row and any of the air inlets in the second row is different in the axial direction of the aerosol generating article.

[0008] In some embodiments, the number of air inlets in each row does not exceed 20; and / or,

[0009] The number of air intake holes in each row shall not be less than three.

[0010] In some embodiments, the maximum cross-sectional area of ​​a single air inlet is not less than 0.0064 mm. 2 And not greater than 0.25mm 2 .

[0011] In some embodiments, the center-to-center distance between two adjacent rows of air inlets along the axial direction of the aerosol generating article is a first dimension, and the extension dimension of the aerosol generating article in the first direction is a second dimension, wherein the first dimension accounts for 0.05% to 60% of the second dimension.

[0012] In some embodiments, the flow cross-sections of any of the air inlets in the first row and any of the air inlets in the second row have the same shape but different areas; or,

[0013] The shape of the flow cross section of any of the air inlets in the first row and any of the air inlets in the second row are different, but the area is the same.

[0014] In some embodiments, the flow cross-section of at least one row of the air inlets is circular; and / or,

[0015] The flow cross-section of at least one row of the aforementioned air inlets is square; and / or,

[0016] The flow cross-section of at least one row of the air inlets is non-circular and non-regular polygonal.

[0017] In some embodiments, in the axial direction of the aerosol-generating article, the first row is located on the side of the second row opposite to the medium section;

[0018] The cross-sectional shape of each air inlet in the first row is square, and the cross-sectional shape of each air inlet in the second row is circular.

[0019] In some embodiments, at least two rows of air inlets have different flow cross-sectional shapes; and / or,

[0020] The number of air intake holes differs in at least two rows.

[0021] In some embodiments, the number of air intakes in each row is the same, and all the air intakes are arranged in a matrix; or,

[0022] Along the axial projection of the aerosol-generated product, the orthographic projections of any two air inlets are staggered.

[0023] In some embodiments, the downstream segment includes multiple functional segments;

[0024] At least two rows of the air intake holes are located on the same functional segment; or, at least two rows of the air intake holes are located on different functional segments.

[0025] In some embodiments, the functional segment includes a support segment, and at least one row of the air inlets is located in the support segment; and / or,

[0026] The functional section includes a cooling section, and at least one row of the air inlets is located in the cooling section; and / or,

[0027] The functional section includes a filter section, and at least one row of the air inlets is located in the filter section; and / or,

[0028] The functional section includes a fragrance-carrying section, and at least one row of air inlets is located in the fragrance-carrying section.

[0029] In some embodiments, the functional segment has a multi-layered structure along its radial direction, and the number of layers through which each row of air inlets penetrates the functional segment is different.

[0030] In some embodiments, the material of the multi-layered functional segments includes at least one of corrugated paper and silicone parts.

[0031] In some embodiments, the functional segment has an internal air passage extending through both axial ends of the functional segment, and the other end of at least one row of air inlets extends through the inner wall of the functional segment and communicates with the internal air passage.

[0032] Another aspect of this application provides an aerosol generation system, including:

[0033] Aerosol generating apparatus, including heating components;

[0034] The aerosol generating article according to any of the above embodiments generates aerosol under the heating action of the heating component.

[0035] The aerosol generating article of this application embodiment, by providing air inlets in the downstream section, facilitates adjustment of the air intake ratio between the distal and proximal ends of the aerosol generating article, thus making it suitable for generating inhalable aerosols during heating. Simultaneously, by combining different flow cross-sectional areas and / or different flow cross-sectional shapes, or by providing a first row and a second row of air inlets with different opening sizes along the axial direction of the aerosol generating article, a difference in airflow velocity is created in the downstream section. This improves aerosol extraction efficiency and enhances the flavor expression of the aerosol, allowing the generated aerosol to be inhaled by the user promptly, thereby reducing the amount of aerosol accumulation in the downstream section and improving the cleaning performance of the aerosol generating article. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the structure of the aerosol-generating article according to the first embodiment of this application;

[0037] Figure 2This is a schematic diagram of the structure of the aerosol-generated article according to the second embodiment of this application;

[0038] Figure 3 This is a schematic diagram of the structure of the aerosol-generated article according to the third embodiment of this application;

[0039] Figure 4 This is a simplified schematic diagram of the structure of the first embodiment of this application, showing an air inlet provided in the downstream section;

[0040] Figure 5 This is a simplified schematic diagram of the structure of the second embodiment of this application, showing an air inlet provided in the downstream section;

[0041] Figure 6 This is a simplified schematic diagram of the structure of the third embodiment of the present application, showing an air inlet provided in the downstream section;

[0042] Figure 7 This is a simplified schematic diagram of the structure of the fourth embodiment of this application, showing the provision of an air inlet in the downstream section;

[0043] Figure 8 This is a simplified schematic diagram of the structure of the fifth embodiment of this application, showing an air inlet provided in the downstream section;

[0044] Figure 9 This is a simplified schematic diagram of the structure of the sixth embodiment of this application, showing an air inlet provided in the downstream section;

[0045] Figure 10 This is a simplified schematic diagram of the structure of the seventh embodiment of the present application, showing an air inlet provided in the downstream section;

[0046] Figure 11 This is a simplified schematic diagram of the structure of the eighth embodiment of this application, showing an air inlet provided in the downstream section;

[0047] Figure 12 This is a simplified schematic diagram of the structure of the ninth embodiment of this application, showing an air inlet provided in the downstream section;

[0048] Figure 13 This is a simplified schematic diagram of the structure of the tenth embodiment of this application, showing an air inlet provided in the downstream section;

[0049] Figure 14 This is a simplified structural diagram of a functional segment according to an embodiment of this application.

[0050] Explanation of reference numerals in the attached figures

[0051] 100. Aerosol generating product; 100a. Proximal lip end; 100b. Distal lip end; 10. Medium section; 20. Downstream section; 20a. Air inlet; 21. First row; 22. Second row; 23. Third row; 24. Functional section; 24a. Internal air passage; 241. Support section; 242. Cooling section; 243. Filter section. Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of this application, and are therefore only examples, and should not be used to limit the scope of protection of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0053] In the description of the embodiments of this application, technical terms such as "first," "second," and "third" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0054] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0055] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects are in an "or" relationship.

[0056] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0057] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical term "contact" should be interpreted broadly, and can be direct contact, contact through an intermediate medium layer, contact between two contacting parties with substantially no interaction force, or contact between two contacting parties with interaction force.

[0058] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0059] The first aspect of this application provides an aerosol-generating article; please refer to [link to relevant documentation]. Figures 1 to 3 The aerosol generating article 100 includes a medium section 10 and a downstream section 20 located downstream of the medium section 10.

[0060] The aerosol generating product 100 is suitable for suction by heating without combustion.

[0061] The medium section 10 is used to generate aerosols. Specifically, the aerosol generating article 100 is used in conjunction with an aerosol generating device, which includes a heating component and a power supply component. The power supply component provides electrical energy to the heating component, which converts the electrical energy into other forms of energy and applies them to the medium section 10, thereby heating the medium section 10 to generate aerosols.

[0062] There are various heating methods for the heating components. For example, heating methods include peripheral heating and center heating. Peripheral heating refers to the heating component being positioned around the aerosol generating article 100 to bake and heat the medium section 10 from the outside in. Center heating refers to the heating component being inserted into the aerosol generating article 100 to bake and heat the medium section 10 from the inside out. These heating methods can specifically include resistance heating, electromagnetic induction heating, infrared heating, microwave heating, laser heating, air heating, electric field heating, carbon source heating, plasma heating, etc., and are not specifically limited herein.

[0063] Please see Figures 1 to 3 The aerosol generating article 100 has two axial ends, namely a proximal lip end 100a and a distal lip end 100b. The proximal lip end 100a refers to the end of the aerosol generating article 100 that is close to the user's lips when the user uses it, and the distal lip end 100b refers to the end of the aerosol generating article 100 that is far away from the user's lips when the user uses it.

[0064] During the suction process, a portion of the airflow can flow from the distal lip end 100b to the proximal lip end 100a, thereby entraining the aerosol generated by the medium section 10 for the user to inhale. It can be understood that the area through which this portion of the airflow flows after passing through the medium section 10 is the downstream of the medium section 10, and the downstream section 20 refers to all structural sections of the aerosol generating product 100 located downstream of the medium section 10.

[0065] In some embodiments, the medium segment 10 and the downstream segment 20 are connected along a first direction. Here, the first direction is the axial direction of the aerosol generating article 100, and of course, the first direction is also the axial direction of both the medium segment 10 and the downstream segment 20. Specifically, the first direction is as follows: Figures 1 to 3 The direction indicated by L. That is, the downstream section 20 is located at one end of the axial direction of the medium section 10.

[0066] Please see Figures 1 to 13 The downstream section 20 is provided with multiple rows of air inlets 20a spaced along its axial direction. Here, multiple rows of air inlets 20a refers to two or more rows of air inlets 20a.

[0067] It should be noted that the air inlets 20a on each row are spaced apart in the circumferential direction of the aerosol generating product 100, while the rows are spaced apart along the axial direction of the aerosol generating product 100.

[0068] The inlet of each air inlet 20a is located on the peripheral sidewall of the downstream section 20. That is, each air inlet 20a extends radially along the aerosol generating article 100, so that when aerosol is drawn in, external airflow can enter the interior of the aerosol generating article 100 through these air inlets 20a.

[0069] External air can enter the air intake 20a through the inlet of the air intake 20a.

[0070] It should be noted that each structural segment of the aerosol generating product 100 (such as the medium segment 10, the various structural segments of the downstream segment 20, etc.) can be cylindrical. Specifically, taking the medium segment 10 as an example, the peripheral sidewall of the medium segment 10 is the cylindrical surface of the cylinder, and the two axial end faces of the medium segment 10 are circular.

[0071] The multi-row air intake 20a includes the first row 21 and the second row 22 air intake 20a.

[0072] Please see Figures 5 to 13 The area and / or shape of the flow cross section of any air inlet 20a in the first row 21 is different from that of any air inlet 20a in the second row 22.

[0073] Here, the flow cross-sectional area of ​​any air inlet 20a in the first row 21 may be different from that of any air inlet 20a in the second row 22; the shape of the flow cross-section of any air inlet 20a in the first row 21 may be different from that of any air inlet 20a in the second row 22; or both the area and shape of the flow cross-section of any air inlet 20a in the first row 21 and any air inlet 20a in the second row 22 may be different.

[0074] Alternatively, please see Figure 4 The opening size of any air inlet 20a in the first row 21 and any air inlet 20a in the second row 22 is different along the axial direction of the aerosol generating article 100. The opening size of the air inlet 20a along the axial direction of the aerosol generating article 100 refers to the maximum diameter of each air inlet 20a along the axial direction of the aerosol generating article 100. That is, in this embodiment, the shape and area of ​​the air inlets 20a in the first row 21 and the second row 22 can be the same, but the arrangement of the air inlets 20a in the two rows is different. For example... Figure 4 The air inlets 20a in the first row 21 and the air inlets 20a in the second row 22 are rectangles with the same side length and area. The long side of the air inlets 20a in the first row 21 extends along the circumference of the aerosol generating product 100, while the long side of the air inlets 20a in the second row 22 extends along the axial direction of the aerosol generating product 100.

[0075] The air intake ratio at the distal lip end 100b and proximal lip end 100a of the aerosol generating article 100 significantly affects the amount of aerosol generated and released at the proximal lip end 100a. However, in related technologies, the adjustment methods for the proximal lip end air intake in aerosol generating articles are limited, leading to aerosol accumulation in the downstream section. This, in turn, causes a series of problems such as poor appearance cleanliness of the aerosol generating article, low aerosol extraction efficiency, and insufficient aerosol flavor expression.

[0076] The aerosol generating article 100 of this application embodiment, by providing air inlets 20a in the downstream section 20, facilitates adjustment of the air intake ratio between the distal lip end 100b and the proximal lip end 100a of the aerosol generating article 100, thus making it suitable for generating inhalable aerosols when heated. Simultaneously, by combining different flow cross-sectional areas and / or different flow cross-sectional shapes, or by providing air inlets 20a of the first row 21 and the second row 22 with different opening sizes along the axial direction of the aerosol generating article 100, a difference in airflow velocity is created in the downstream section 20. This is beneficial for improving aerosol extraction efficiency and enhancing the flavor expression of the aerosol, allowing the generated aerosol to be inhaled by the user in a timely manner, thereby reducing the amount of aerosol accumulation in the downstream section 20 and improving the cleaning performance of the aerosol generating article 100.

[0077] It should be noted that suction resistance and aroma expression are two important indicators in the sensory evaluation of the aerosol generating article 100. The ventilation effect of the aerosol generating article 100 is a significant factor affecting these two indicators. The shape of the flow cross-section of the air inlet 20a and its placement significantly influence the ventilation effect. In this embodiment, the aerosol generating article 100, by selecting and combining the orifice shapes of the air inlets 20a at different locations, can effectively improve the suction experience of the aerosol generating article 100.

[0078] In some embodiments, please refer to Figures 4 to 13 The number of air inlets 20a in each row shall not exceed 20; and / or the number of air inlets 20a in each row shall not be less than 3.

[0079] For example, the number of air inlets 20a in each row can be 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, etc.

[0080] It is understandable that if there are too many air inlets 20a in each row, it may cause the aerosol-generating product 100 to break, while if there are too few air inlets 20a in each row, it may result in insufficient side-flow air intake.

[0081] In this embodiment, the number of air inlets 20a in each row is kept between 3 and 20. On the one hand, this helps to ensure the side flow air intake at the near-lip end 100a of the aerosol generating product 100, thereby improving the aerosol extraction efficiency, the cleanliness of the aerosol generating product 100, and the flavor expression ability of the aerosol. On the other hand, it also helps to ensure the structural strength of the aerosol generating product 100 and reduce the possibility of breakage.

[0082] Preferably, the number of air inlets 20a in each row can be maintained between 3 and 16 (including 3 and 16).

[0083] In some embodiments, please refer to Figures 4 to 13 The maximum cross-section of a single air inlet 20a is not less than 0.0064 mm. 2 And not greater than 0.25mm 2 .

[0084] The maximum cross-sectional area of ​​a single air inlet 20a can be 0.0064 mm. 2 0.008mm 2 0.01mm 2 0.04mm 2 0.05mm2 0.08mm 2 0.09mm 2 0.1mm 2 0.12mm 2 0.13mm 2 0.15mm 2 0.18mm 2 0.2mm 2 0.22mm 2 0.23mm 2 0.25mm 2 The point value of any one of them or the point value between any two.

[0085] It should be noted that the maximum cross-sectional area of ​​a single air intake 20a refers to the area of ​​the largest cross-section among all the cross-sections of that air intake 20a. Here, the cross-section of the air intake 20a is its flow section.

[0086] With a fixed air intake area, the smaller the flow cross-sectional area of ​​a single air intake port 20a, the more air intake ports 20a need to be set; the larger the flow cross-sectional area of ​​a single air intake port 20a, the fewer air intake ports 20a need to be set.

[0087] In this embodiment, the maximum cross-sectional area of ​​a single air inlet 20a is set to 0.0064 mm. 2 -0.25mm 2 While ensuring that the aerosol generating product 100 has a certain air intake efficiency, it can also ensure that the aerosol generating product 100 has a certain structural strength. In addition, by controlling the number of air inlets 20a, the production efficiency of the aerosol generating product 100 can be improved.

[0088] Furthermore, if the cross-sectional area of ​​a single air inlet 20a is too small, the air intake will be insufficient; while if the cross-sectional area of ​​a single air inlet 20a is too large, the airflow velocity during the intake process will be too slow, and it may even fail to perform its functions of cooling and generating aerosols. In this embodiment, the maximum cross-sectional area of ​​a single air inlet 20a is set to be no less than 0.0064 mm. 2 And not greater than 0.25mm 2 This will help improve the situation.

[0089] Preferably, the maximum cross-sectional area of ​​a single air inlet 20a is 0.01 mm. 2 -0.09mm 2 .

[0090] While enabling the aerosol generating product 100 to have a certain air intake efficiency, it also helps to further improve the production efficiency of the aerosol generating product 100.

[0091] More preferably, the maximum cross-sectional area of ​​a single air inlet 20a is 0.01 mm. 2 -0.04mm 2 .

[0092] While enabling the aerosol generating product 100 to have a certain air intake efficiency, it also helps to further improve the production efficiency of the aerosol generating product 100.

[0093] In some embodiments, please refer to Figures 1 to 3 In the axial direction of the aerosol generating article 100, the center-to-center distance between two adjacent rows of air inlets 20a is the first dimension, and the axial extension dimension of the aerosol generating article 100 is the second dimension. The proportion of the first dimension to the second dimension is 0.05% to 60%. For example, it can be 0.05%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1%, 5%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, etc.

[0094] Taking the shape of the flow cross section of the air inlet 20a in the first row 21 as circular and the shape of the flow cross section of the air inlet 20a in the second row 22 as square as an example, the first dimension refers to the distance between the center of the air inlet 20a in the first row 21 and the center of the air inlet 20a in the second row 22 in the first direction.

[0095] It should be noted that if the distance between the two rows of air inlets 20a is too small, the airflow of the two rows of air inlets 20a will tend to be consistent, which will not make it easy for the two rows of air inlets 20a to function independently. If the distance between the two rows of air inlets 20a is too large, it may cause the row of air inlets 20a closer to the lip end 100a to be too close to the lip end 100a, thus being too close to the lips during suction. This may easily cause the lips to block the holes during suction.

[0096] In this embodiment, the proportion of the first dimension to the second dimension is controlled between 0.05% and 60%. This allows the two adjacent rows of air inlets 20a to function effectively. At the same time, it also helps to ensure that the row of air inlets 20a closer to the lip end 100a has sufficient spacing with the lip end 100a, thereby reducing the probability of lip blockage during suction.

[0097] In some embodiments, please refer to Figure 5 and Figure 6 The flow cross-sections of any air inlet 20a in the first row 21 and any air inlet 20a in the second row 22 have the same shape but different areas.

[0098] Specifically, please refer to Figure 5 This could mean that the cross-sectional area of ​​the air inlet 20a in the first row 21 is smaller than the cross-sectional area of ​​the air inlet 20a in the second row 22; please refer to [link / reference]. Figure 6 Alternatively, the area of ​​the flow cross-section of the air inlet 20a in the first row 21 can be greater than the area of ​​the flow cross-section of the air inlet 20a in the second row 22.

[0099] In this embodiment, when opening air inlets 20a on the aerosol generating product 100, at least two rows of air inlets 20a can be operated using tools of the same shape, which helps to reduce the production cost of the aerosol generating product 100.

[0100] In some embodiments, please refer to Figure 7 and Figure 8 The shape of the flow cross section of any air inlet 20a in the first row 21 and any air inlet 20a in the second row 22 is different, but the area is the same.

[0101] This makes it easier to control the flow rate of the side air intake of the first row 21 air intake hole 20a and the second row 22 air intake hole 20a, so that the flow rates of the two rows of air intake holes 20a are different, thereby making it easier to adjust the side air intake volume near the lip end 100a.

[0102] In some embodiments, please refer to Figure 7 , Figure 8 , Figure 12 and Figure 13 At least one row of air inlets 20a has a circular cross-section.

[0103] Under the premise of the same flow cross-sectional area, the air inlet 20a with a circular flow cross-section has a stronger ventilation effect. This is beneficial to increasing the side flow air volume, which in turn helps to further improve the extraction efficiency of aerosols, the cleaning performance of the aerosol product 100, and further improves the flavor expression ability of aerosols.

[0104] In some embodiments, please refer to Figures 4 to 8 , Figure 10 , Figure 12 and Figure 13 At least one row of air inlets 20a has a square cross-section.

[0105] Here, the square can be either a square or a rectangle.

[0106] The air inlet 20a with a square flow cross section has a good aroma resolution capability. Therefore, the aerosol generating product 100 of this embodiment is beneficial to improving the aroma resolution capability of the aerosol generating product 100.

[0107] Preferably, the cross-sectional shape of the flow passage of at least one row of air inlets 20a is square, which improves the aroma resolution capability.

[0108] In some embodiments, please refer to Figure 4 , Figures 8 to 12 At least one row of air inlets 20a has a flow cross-section that is non-circular and non-regular polygonal.

[0109] For example, it can be an ellipse, a trapezoid, an irregular polygon, etc.

[0110] In this way, the intake port 20a has a better tolerance effect.

[0111] In some embodiments, please refer to Figure 7 , Figure 8 , Figure 12 and Figure 13 In the axial direction of the aerosol generating product 100, the first row 21 is located on the side of the second row 22 away from the medium section 10; the flow cross-section of each air inlet 20a in the first row 21 is square, and the flow cross-section of each air inlet 20a in the second row 22 is circular.

[0112] In this way, the row of air inlets 20a near the medium section 10 has a better ventilation effect, which is conducive to improving the extraction efficiency of aerosols. The volatile compounds generated in the medium section 10 can be cooled in time to form aerosols. The row of air inlets 20a near the lip end 100a has a better aroma resolution ability. As a result, the aroma of the aerosol is better when it enters the mouth, which is conducive to improving the taste of the aerosol.

[0113] In some embodiments, please refer to Figures 7 to 13 At least two rows of air inlets 20a have different flow cross-sectional shapes.

[0114] For example, the downstream section 20 is further provided with a third row of air inlets 20a, and the specific location of the third row of air inlets 20a is not limited. For example, in the first direction, it can be located on the side of the second row of air inlets 20a away from the first row of air inlets 20a, or it can be located between the second row of air inlets 20a and the first row of air inlets 20a, or it can be located on the side of the first row of air inlets 20a away from the second row of air inlets 20a.

[0115] Please see Figure 12 The shape of the flow cross section of the air inlet 20a in the third row 23 can be different from the shape of the flow cross section of the air inlet 20a in the first row 21 and the air inlet 20a in the second row 22. In this way, the three rows of air inlets 20a each play a different role, which is beneficial to improving the overall performance of the aerosol generating product 100.

[0116] Please see Figure 13 The shape of the flow cross-section of the air inlet 20a in the third row 23 can also be the same as the shape of the flow cross-section of one of the air inlet 20a in the first row 21 and the air inlet 20a in the second row 22. In this way, at least two rows of air inlets 20a can be punched with tools of the same specification, which helps to reduce the production cost of aerosol generation product 100. Furthermore, at least two rows of air inlets 20a do not require tool changes during punching, which helps to improve the production efficiency of aerosol generation product 100.

[0117] In some embodiments, please refer to Figures 4 to 8 , Figure 10 , Figure 12 and Figure 13 The number of air intake holes 20a in each row is the same, and all the air intake holes 20a are distributed in a matrix.

[0118] For example, a matrix distribution is illustrated by having three air inlets 20a per row: all air inlets 20a are divided into three columns, with the columns spaced circumferentially between them, and the air inlets 20a in each column spaced axially between them. In each column, the line connecting the centers of the air inlets 20a is parallel to the axial direction of the aerosol generating article 100.

[0119] In this embodiment, when the airflow flowing from the upstream row of air inlets 20a into the aerosol generating product 100 flows downstream of the same row of air inlets 20a, it will collide with the airflow flowing from the downstream row of air inlets 20a into the aerosol generating product 100, which is beneficial to the mixing of aerosols.

[0120] In some embodiments, please refer to Figure 9 and Figure 11 The projection along the axial direction of the aerosol-generated product 100 is such that the orthographic projections of any two air inlets 20a are offset from each other.

[0121] In other words, the air inlets 20a between rows are staggered. In this way, the airflow flowing from each row of air inlets 20a into the aerosol generating product 100 can come into contact with the flue gas. This increases the amount of flue gas that comes into contact with cold air, and the flue gas in each area can be cooled better, which is beneficial to improving the smoking experience of the aerosol.

[0122] Each row of air inlets 20a can perform different functions, such as increasing the mixing efficiency of the aerosol, cooling, and adjusting the suction resistance of the aerosol-generated product 100. For some embodiments, please refer to... Figure 9At least two rows of air inlets 20a have different numbers. In this way, the number of air inlets 20a in each row can be designed according to actual needs. While ensuring the function of the air inlets 20a in that row, it is not necessary to open too many air inlets 20a in that row, which helps to improve the production efficiency of aerosol generating product 100.

[0123] In some embodiments, please refer to Figures 1 to 3 The downstream section 20 includes multiple functional sections 24. The functional section 24 includes at least one of a support section 241, a filter section 243, and a cooling section 242.

[0124] For example, functional segment 24 includes a support segment 241, a cooling segment 242, and a filter segment 243. The support segment 241 is disposed at one end of the medium segment 10 along its axial direction, one end of the cooling segment 242 is disposed at the end of the support segment 241 away from the medium segment 10 along its axial direction, and the filter segment 243 is disposed at the other end of the cooling segment 242.

[0125] The support section 241 can connect and support the medium section 10 and the cooling section 242 at both ends. The cooling section 242 is used to reduce the temperature of the aerosol so that the temperature of the aerosol flowing out of the filter section 243 is suitable and avoids the problem of the aerosol "burning your mouth".

[0126] Of course, the positions of the support section 241 and the cooling section 242 can also be interchanged, that is, the cooling section 242 is connected to one end of the medium section 10 along the axis, and the two ends of the support section 241 are connected to the other end of the cooling section 242 and the filter section 243, respectively.

[0127] The structure of the support section 241 is not limited. For example, it can be a hollow paper tube structure or a hollow aluminum foil tube structure. Hollow paper tube structures and hollow aluminum foil tube structures have good heat resistance, are not easily deformed when heated, and can still maintain their shape after receiving heat conduction, which can increase the structural stability of the aerosol-generated product 100. Alternatively, it can also be a hollow cellulose acetate structure, a hollow silicone structure, etc.

[0128] The structure of the cooling section 242 is not limited. For example, it can be one of a hollow paper tube, a cellulose acetate tube, or an aluminum foil tube. That is, the cooling section 242 has a porous internal structure. When the airflow carrying aerosols passes through the cooling section 242, a Venturi effect is formed (the Venturi effect refers to the phenomenon that the fluid velocity increases when passing through a narrowed flow cross-section, and the velocity is inversely proportional to the flow cross-section). This allows the aerosols to pass through the cooling section 242 relatively quickly, thus enabling faster aerosol extraction. The cooling section 242 has a large specific surface area, which allows for rapid cooling of the aerosols. Alternatively, the cooling section 242 can also be a corrugated paper tube, etc.

[0129] Please see Figures 1 to 3At least two rows of air inlets 20a are located on the same functional section 24. For example, at least two rows of air inlets 20a are located on the cooling section 242. In this way, when opening the air inlets 20a, the opening of at least two rows of air inlets 20a can be completed on the same functional section 24. Therefore, during the production process, it is not necessary to repeatedly change the functional section 24 to complete the opening of all air inlets 20a, which helps to improve the production efficiency of aerosol-generated products 100.

[0130] Please see Figure 2 At least two rows of air inlets 20a are located on different functional sections 24. This allows for adjustment of the airflow velocity within at least two functional sections 24, thereby increasing the adjustment methods for the airflow within the downstream section 20 and facilitating further optimization of the suction performance of the aerosol-generated product 100 based on actual conditions.

[0131] In some embodiments, please refer to Figure 2 At least one row of air inlets 20a is located in the support section 241. The support section 241 is generally provided with internal air passages 24a extending through both ends of its axial direction. In this way, one end of the air inlet 20a on the support section 241 can communicate with the internal air passage 24a. Thus, the air flowing into the functional section 24 through the air inlet 20a can flow away more quickly through the internal air passage 24a, thereby preventing blockage of the air inlet 20a. In other words, the ventilation effect is better.

[0132] In some embodiments, please refer to Figures 1 to 3 At least one row of air inlets 20a is located in the cooling section 242. The cooling section 242 is generally also provided with internal air passages 24a running through both ends of its axial direction. In this way, one end of the air inlet 20a on the cooling section 242 can communicate with the internal air passage 24a. Thus, the air flowing into the functional section 24 through the air inlet 20a can also flow away quickly through the internal air passage 24a, thereby preventing blockage of the air inlet 20a. In other words, the ventilation effect is better.

[0133] In some embodiments, at least one row of air inlets 20a is located in the filter section 243. The filter section 243 is generally a solid structure with a large suction resistance. By providing at least one row of air inlets 20a on the filter section 243, it is convenient to adjust the suction resistance of the filter section 243.

[0134] In some embodiments, at least one row of air inlets 20a is located in the fragrance-carrying section. The fragrance-carrying section carries a large amount of fragrance substances. By providing at least one row of air inlets 20a on the fragrance-carrying section, it is convenient for the fragrance substances in the fragrance-carrying section to be released, and it is convenient to adjust the flavor of the aerosol.

[0135] In some embodiments, please refer to Figure 3 and Figure 14The functional section 24 has a multi-layer structure along its radial direction, and the number of layers through which each row of air inlets 20a penetrates the functional section 24 is different.

[0136] For example, please refer to Figure 14 The material of the multi-layered functional segment 24 includes at least one of corrugated paper and silicone parts.

[0137] Based on the aerosol generating device that uses a peripheral heating method, the gas path of the aerosol generating product 100 is generally located at the periphery of the aerosol generating product 100. The radial extension dimension of the air inlet 20a along the functional section 24 does not need to be too long. Therefore, the number of layers it passes through does not need to be too many. This helps to reduce the difficulty of opening the air inlet 20a and improve the production efficiency of the aerosol generating product 100.

[0138] Based on the aerosol generating device using a central heating method, the gas path of the aerosol generating product 100 is generally located near the central axis of the aerosol generating product 100. At least one row of air inlets 20a needs to extend to the vicinity of the central axis of the functional section 24. This facilitates the thorough mixing of the airflow entering the interior of the aerosol generating product 100 through the air inlets 20a with the airflow entering through the distal lip end 100b of the aerosol generating product 100, thereby entraining aerosols for the user to inhale.

[0139] In some embodiments, please refer to Figures 1 to 3 The functional section 24 has an internal air passage 24a that runs through both ends of the functional section 24 axially, and the other end of at least one row of air inlets 20a runs through the inner wall of the functional section 24 and communicates with the internal air passage 24a.

[0140] This is beneficial for improving the extraction efficiency of aerosols, as the aerosols are mainly generated in the central region of the product 100.

[0141] The aerosol generating article 100 of this application will be further described below with reference to three specific embodiments:

[0142] Example 1:

[0143] Please see Figure 1 The aerosol generating product 100 has two rows of air inlets 20a, both of which are located in the cooling section 242 of the aerosol generating product 100. Please refer to [link / reference needed]. Figure 9 The air inlet 20a, which is closer to the lip end 100a, has a trapezoidal cross-sectional shape, and the maximum cross-sectional area of ​​a single air inlet 20a is 0.010 mm². 2 The number of air inlets 20a is 8; the flow cross-section of the air inlets 20a farther from the near lip end 100a is elliptical, and the maximum cross-sectional area of ​​a single air inlet 20a is 0.024 mm². 2The number of air inlets 20a is 12.

[0144] Example 2:

[0145] Please see Figure 2 The aerosol-generating product 100 has three rows of air inlets 20a, two of which are located in the cooling section 242, and one row is located in the support section 241. Please refer to [link / reference]. Figure 13 Located in the cooling section 242, closer to the lip end 100a, the air inlet 20a has a square cross-sectional shape, and the maximum cross-sectional area of ​​a single air inlet 20a is 0.010 mm². 2 The number of air inlets 20a is 10; the air inlets 20a located in the cooling section 242, which are farther from the near lip end 100a, have a circular cross-sectional shape, and the number of air inlets 20a is 10; the air inlets 20a located in the support section 241 have a circular cross-sectional shape, and the area of ​​a single air inlet 20a is a maximum cross-sectional area of ​​0.008 mm. 2 The number of air inlets 20a is 10.

[0146] Example 3:

[0147] Please see Figure 3 The cooling section 242 of the aerosol generating product 100 uses a corrugated paper tube and has a three-layer structure. The aerosol generating product 100 has two rows of air inlets 20a, both located in the cooling section 242. The air inlet 20a closer to the lip end 100a penetrates only the packaging material and the first and second layers of the corrugated paper tube; the air inlet 20a farther from the lip end 100a penetrates both the packaging material and the corrugated paper tube, allowing air to directly enter the internal air passage 24a. Please refer to [link / reference]. Figure 10 The air inlet 20a, which is closer to the lip end 100a, has a square cross-sectional shape, and the maximum cross-sectional area of ​​a single air inlet 20a is 0.010 mm². 2 The number of air inlets 20a is 10; the flow cross-section of the air inlets 20a farther from the near lip end 100a is an isosceles triangle, and the maximum cross-sectional area of ​​a single air inlet 20a is 0.010 mm². 2 The number of air inlets 20a is 10.

[0148] A second aspect of this application provides an aerosol generation system, which includes an aerosol generation device and an aerosol generation article 100 according to any embodiment of this application. The aerosol generation device includes a heating component, and a medium section 10 generates aerosols under the action of the heating component.

[0149] It should be noted that when the aerosol generation system adopts the aerosol generation article 100 of any embodiment of this application, the aerosol generation system has all the advantages of the aerosol generation article 100 of that embodiment, which will not be repeated here.

[0150] The above embodiments are merely illustrative of the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. 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, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An aerosol-generating product, characterized in that, The aerosol generating product includes a medium section and a downstream section located downstream of the medium section. The downstream section is provided with multiple rows of air inlets spaced along its axial direction. The inlet of each air inlet is located on the peripheral sidewall of the downstream section. The multiple rows of air inlets include a first row and a second row of air inlets. Wherein, the area and / or shape of the flow cross section of any of the air inlets in the first row is different from that of any of the air inlets in the second row; or, the opening size of any of the air inlets in the first row and any of the air inlets in the second row is different in the axial direction of the aerosol generating article.

2. The aerosol-generating product according to claim 1, characterized in that, The number of air inlets in each row shall not exceed 20; and / or, The number of air inlets in each row shall not be less than three.

3. The aerosol-generating product according to claim 1, characterized in that, The maximum cross-sectional area of ​​a single air inlet is not less than 0.0064 mm. 2 And not greater than 0.25mm 2 .

4. The aerosol-generating product according to claim 1, characterized in that, In the axial direction of the aerosol generating article, the center-to-center distance between two adjacent rows of air inlets is the first dimension, and the axial extension dimension of the aerosol generating article is the second dimension. The proportion of the first dimension to the second dimension is 0.05% to 60%.

5. The aerosol-generating product according to claim 1, characterized in that, The flow cross-sections of any of the air inlets in the first row and any of the air inlets in the second row have the same shape but different areas; or, The shape of the flow cross section of any of the air inlets in the first row and any of the air inlets in the second row are different, but the area is the same.

6. The aerosol-generating product according to claim 1, characterized in that, The flow cross-section of at least one row of the aforementioned air inlets is circular; and / or, The flow cross-section of at least one row of the aforementioned air inlets is square; and / or, The flow cross-section of at least one row of the air inlets is non-circular and non-regular polygonal.

7. The aerosol-generating product according to claim 1, characterized in that, In the axial direction of the aerosol-generated article, the first row is located on the side of the second row away from the medium section; The cross-sectional shape of each air inlet in the first row is square, and the cross-sectional shape of each air inlet in the second row is circular.

8. The aerosol-generating product according to claim 1, characterized in that, At least two rows of air inlets have different flow cross-sectional shapes; and / or, The number of air intake holes differs in at least two rows.

9. The aerosol-generating product according to claim 1, characterized in that, The number of air intakes in each row is the same, and all the air intakes are arranged in a matrix; or... Along the axial projection of the aerosol-generated product, the orthographic projections of any two air inlets are staggered.

10. The aerosol-generating article according to any one of claims 1-9, characterized in that, The downstream section includes multiple functional sections; At least two rows of the air intake holes are located on the same functional segment; or, at least two rows of the air intake holes are located on different functional segments.

11. The aerosol-generating article according to claim 10, characterized in that, The functional segment includes a support segment, and at least one row of the air inlets is located in the support segment; and / or, The functional section includes a cooling section, and at least one row of the air inlets is located in the cooling section; and / or, The functional section includes a filter section, and at least one row of the air inlets is located in the filter section; and / or, The functional section includes a fragrance-carrying section, and at least one row of air inlets is located in the fragrance-carrying section.

12. The aerosol-generating article according to claim 10, characterized in that, The functional segment has a multi-layered structure along its radial direction, and the number of layers through which each row of air inlets penetrates the functional segment is different.

13. The aerosol-generating product according to claim 12, characterized in that, The material of the multi-layered functional segment includes at least one of corrugated paper and silicone parts.

14. The aerosol-generating article according to claim 10, characterized in that, The functional section has an internal air passage that extends through both ends of the functional section along its axial direction, and the other end of at least one row of air inlets extends through the inner wall of the functional section and communicates with the internal air passage.

15. An aerosol generation system, characterized in that, include: Aerosol generating apparatus, including heating components; The aerosol generating article according to any one of claims 1-14, wherein the aerosol generating article generates aerosol under the heating action of the heating component.

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