Aerosol-generating product and aerosol-generating device

Abstract

The invention relates to an aerosol generating product and an aerosol generating device. The aerosol generating product comprises a card type compact medium, and a plurality of air holes are formed in the card type compact medium in a penetrating mode. The aerosol generating device comprises a shell, and a containing cavity used for containing at least part of the aerosol generating product is formed in the shell. Due to the shape and high compactness of the card type compact medium, the heat transfer path can be shortened, the preheating time is shortened, and the smoke amount is increased; the air holes in the card type compact medium are beneficial to improving the medium utilization rate.

Description

Technical Field

[0001] This invention relates to the field of atomization technology, and more specifically, to an aerosol generating product and an aerosol generating device. Background Technology

[0002] Aerosol-generating products are produced by heating aerosol extracts at low temperatures using an aerosol generating device, releasing the extracts without combustion. Traditional aerosol-generating products are mostly cylindrical, and their main drawbacks in user experience include long preheating times and low media utilization. The preheating time for most commercially available aerosol-generating products is around 25 seconds, and the baking area is less than half the media volume. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an aerosol generating product with short preheating time, large smoke volume, and high medium utilization rate, as well as an aerosol generating device for heating the aerosol generating product, in view of the above-mentioned defects of the prior art.

[0004] The technical solution adopted by the present invention to solve its technical problem is: to construct an aerosol generating product, including a card-type dense medium, wherein multiple air holes are formed through the card-type dense medium.

[0005] In some embodiments, the density of the card-type dense medium is 0.8 g / mm². 3 ~1.5g / mm 3 .

[0006] In some embodiments, the width of the cross-section of the card-type dense medium is 8mm to 14mm, and the thickness is 1.5mm to 3mm.

[0007] In some embodiments, a plurality of grooves are formed on the outer surface of the card-type dense medium, each groove extending along the axial direction of the card-type dense medium, and the plurality of grooves are evenly spaced along the width direction of the card-type dense medium.

[0008] In some embodiments, the aerosol-generating article further includes a thermally conductive film wrapped around the card-type dense medium; the thermally conductive film includes aluminum foil or tin foil.

[0009] In some embodiments, the aerosol-generating article further includes:

[0010] A support section, wherein at least one through hole is formed through the support section and communicates with the plurality of air holes;

[0011] The filter section, the card-type dense medium, the support section, and the filter section are arranged sequentially along the axial direction of the aerosol-generating article; and

[0012] A packaging film that covers at least a portion of the support section and the filter section.

[0013] The present invention also provides an aerosol generating apparatus for heating an aerosol generating article as described in any of the preceding claims, comprising a housing; wherein a receiving cavity for accommodating at least a portion of the aerosol generating article is formed within the housing.

[0014] In some embodiments, the aerosol generating apparatus further includes a heating element disposed in the housing; the heating element is disposed on the outside of the card-type dense medium or inserted into the card-type dense medium.

[0015] In some embodiments, the heating element is a flat tube that matches the shape of the card-type dense medium, and the inner wall surface of the heating element defines at least a portion of the receiving cavity.

[0016] In some embodiments, the outer surface of the heating element is provided with a glaze layer.

[0017] Implementing this invention has at least the following beneficial effects: due to the shape and high density of the card-type dense medium, the heat transfer path can be shortened, the preheating time can be shortened, and the amount of smoke can be increased; the pores on the card-type dense medium are beneficial to improving the utilization rate of the medium. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0019] Figure 1 This is a three-dimensional structural schematic diagram of the aerosol generation system in some embodiments of the present invention;

[0020] Figure 2 yes Figure 1 A schematic diagram of the longitudinal cross-sectional structure of the aerosol generation system shown.

[0021] Figure 3 yes Figure 1 The diagram shows the exploded structure of the aerosol generation system.

[0022] Figure 4 yes Figure 3 Longitudinal cross-sectional view of the aerosol-generated product;

[0023] Figure 5 yes Figure 4 The diagram shows the exploded structure of the aerosol-generated product.

[0024] Figure 6 yes Figure 5 A schematic diagram of the structure of a card-type dense medium;

[0025] Figure 7This is a longitudinal cross-sectional structural diagram of the aerosol-generated product combined with the heating element;

[0026] Figure 8 yes Figure 3 A schematic diagram of the structure of the heating element. Detailed Implementation

[0027] To provide a clearer understanding of the technical features, objectives, and effects of the present invention, specific embodiments are now described in detail with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the invention. However, the invention can be practiced in many ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0028] In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. Furthermore, in this invention, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," etc., 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, unless otherwise explicitly specified. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0029] Figures 1 to 3 An aerosol generation system 1 according to some embodiments of the present invention is shown. The aerosol generation system 1 may include an aerosol generation article 10 and an aerosol generation device 20. The aerosol generation device 20 has a receiving cavity 220 formed within it for containing at least a portion of the aerosol generation article 10. The aerosol generation device 20 can, upon being powered on, perform low-temperature baking heating on the aerosol generation article 10 contained in the receiving cavity 220 to release aerosol extracts from the aerosol generation article 10 in a non-combustible state. The heating methods that the aerosol generation device 20 may employ include, but are not limited to, one or more of the following: heat conduction, electromagnetic fields, infrared radiation, ultrasound, microwaves, and plasma.

[0030] In some embodiments, the aerosol generating apparatus 20 may include a housing 29 and a heating element 22 disposed within the housing 29. The heating element 22 may be tubular, with its inner wall defining at least a partial receiving cavity 220. The heating element 22 may be, but is not limited to, a resistive heating element or an electromagnetic heating element. The heating element 22 is heated by resistance or electromagnetic means, and after being heated, the heating element 22 transfers heat to the aerosol generating article 10. Correspondingly, the material of the heating element 22 may be a magnetic or non-magnetic metal, including but not limited to SUS, aluminum, etc.

[0031] like Figures 4 to 6 As shown, the aerosol generating article 10 may include an outer packaging 11, a card-type dense medium 12, a support section 13, and a filter section 14. The card-type dense medium 12, the support section 13, and the filter section 14 are arranged sequentially along the axial direction of the aerosol generating article 10, and the outer packaging 11 covers at least a portion of the card-type dense medium 12, the support section 13, and the filter section 14.

[0032] The card-type dense medium 12 may be made from, but is not limited to, tobacco, tea, or other plant materials. When the aerosol generating article 10 is housed in the receiving cavity 220, at least a portion of the card-type dense medium 12 is in contact with the heating element 22. After heating, the heating element 22 transfers heat to the card-type dense medium 12 through contact heat transfer, thereby achieving heating and atomization of the card-type dense medium 12.

[0033] The card-type dense medium 12 is generally card-shaped with a flat, elongated cross-section, meaning the width W1 of the cross-section is greater than the thickness D1. In some embodiments, the width W1 of the card-type dense medium 12 can be 8mm to 14mm, for example, 9mm or 12mm; the thickness D1 can be 1.5mm to 3mm, for example, 2.5mm; and the axial length L1 can be 14mm to 20mm, for example, 16mm or 18mm. The relatively small thickness D1 of the cross-section of the card-type dense medium 12 (not greater than 3mm) reduces the distance from the heating element to the center of the medium to less than 1.5mm during heating, which helps to shorten the heat transfer path, improve thermal efficiency, and shorten preheating time.

[0034] In one specific embodiment, the cross-sectional shape of the card-type dense medium 12 is approximately a racetrack circle, and the length, width, and thickness dimensions of the card-type dense medium 12 are 18mm*12mm*2.5mm or 16mm*9mm*2.5mm. In other embodiments, the cross-sectional shape of the card-type dense medium 12 may also be elliptical, rectangular, or other shapes.

[0035] Furthermore, the card-type dense medium 12 has a higher medium density than conventional media, thus enabling the generation of a greater amount of smoke. Conventional media have a density of 0.3 g / mm². 3 ~0.5g / mm 3 The card-type dense medium 12 of the present invention has a media density of 0.8 g / mm². 3 ~1.5g / mm 3 .

[0036] Correspondingly, if traditional cylindrical media are used to prepare card-type media, the compression of the micropores between the media due to the flattening of the circle leads to increased suction resistance and difficulty in suction. Therefore, it is impossible to prepare card-type dense media through simple extrusion. In this embodiment, the card-type dense media 12 also has pores 120 formed through it. The card-type dense media 12 can form an integrated structure with its own air channels by opening pores in the dense media. Specifically, the dense media can be prepared by processes such as extrusion and upsetting. The pores 120 can be integrally formed with the dense media or formed in subsequent processing. This integrated card-type dense media 12 with its own air channels has the advantages of low cost and high media utilization.

[0037] The shape of the pores 120 is not limited; for example, they can be various shapes such as round holes, square holes, and elliptical holes. The number of pores 120 can be one or more. Preferably, there are multiple pores 120, each pore 120 penetrating the card-type dense medium 12 axially. The multiple pores 120 can be evenly spaced along the width and / or thickness direction of the card-type dense medium 12. Further, the multiple pores 120 can be distributed in one or more rows, with each row of pores extending in the width direction of the card-type dense medium 12, which is beneficial for fully carrying out the aerosol generated after atomization of the card-type dense medium 12.

[0038] The outer packaging 11 may include a thermally conductive film 111 wrapped around the card-type dense medium 12. The thermally conductive film 111 may be a thin metal film with a high thermal transfer coefficient, such as aluminum foil or tin foil. By directly wrapping the card-type dense medium 12 with the thermally conductive film 111, heat is quickly transferred to the card-type dense medium 12 by utilizing the high thermal conductivity of the thermally conductive film 111, thereby achieving the effect of rapid smoke generation.

[0039] In addition, such as Figure 7As shown, due to the high density of the card-type dense medium 12, its elasticity is worse than that of ordinary media. When the aerosol generating product 10 is inserted into the heating element 22, there may be a contact gap Y between it and the heating element 22, resulting in a large thermal resistance and poor heating effect. However, by setting a heat-conducting film 111 to wrap the card-type dense medium 12, as long as there is a contact area X within the heating element 22 that contacts the heat-conducting film 111, the high heat transfer performance of the heat-conducting film 111 can be relied upon to quickly transfer heat to other non-contact areas of the heat-conducting film 111 (the area corresponding to the contact gap Y), thereby solving the contact flatness requirement of the card-type dense medium 12 on the rigid (inelastic) heating element 22 and achieving a rapid smoke generation effect.

[0040] For example Figure 5 As shown, the two outer surfaces 121 of the card-type dense medium 12, which are arranged opposite each other in the thickness direction, can also be recessed to form a plurality of grooves 122. The plurality of grooves 122 can be evenly spaced in the width direction of the card-type dense medium 12 and can extend axially to both ends of the card-type dense medium 12. On the one hand, the grooves 122 can facilitate airflow, which helps to reduce suction resistance. On the other hand, the presence of the plurality of grooves 122 makes the outer surface 121 of the card-type dense medium 12 form a convex-concave structure. When the card-type dense medium 12 is heated by the heating element 22, the convex-concave structure also helps to solve the heat transfer problem caused by uneven contact.

[0041] Of course, in other embodiments, the aerosol generating device 20 may also use an electromagnetically heated heat-conducting film 111. After the heat-conducting film 111 is heated in the magnetic field, it transfers the heat to the card-type dense medium 12. Thus, the heating element 22 may or may not be provided in the aerosol generating device 20.

[0042] In other embodiments, the heating element 22 is not limited to a tubular shape. For example, the heating element 22 may also be sheet-shaped, which can be disposed on one or both sides of the card-type dense medium 12 in the thickness direction for heating; alternatively, the sheet-shaped heating element 22 may be inserted into the card-type dense medium 12 for heating; or, the sheet-shaped heating element 22 may be disposed between two card-type dense medium sheets 12 for heating. Furthermore, the heating element 22 may also be one or more columnar heating elements inserted into the card-type dense medium 12 for heating. Yet another example is that the heating element 22 may also be a combination of at least two of the following: tubular heating elements, sheet-shaped heating elements, and columnar heating elements for heating.

[0043] In addition, the thermal contact problem between the card-type dense medium 12 and the heating element 22 can also be solved by other known technologies. For example, there can be two card-type dense media 12, with an elastic device sandwiched between the two card-type dense media 12, and the thermal contact problem can be solved by the elastic force of the elastic device.

[0044] The support section 13 can be a hollow tube with a through hole 130 formed axially inside. This through hole 130 serves to allow airflow and also provides some cooling, reducing the temperature of the aerosol inhaled into the user's mouth. The material of the support section 13 includes, but is not limited to, paper, silicone, and plastic. Alternatively, in other embodiments, the support section 13 can be columnar with multiple through holes 130 formed therethrough.

[0045] The filter section 14 can be a porous structure made of polyester fiber or cellulose acetate, etc. In this embodiment, the shapes of the support section 13 and the filter section 14 are matched with the card-type dense medium 12. The card-type dense medium 12, the support section 13, and the filter section 14 are arranged coaxially in sequence, so that the aerosol generating product 10 is generally flat and card-shaped. Of course, in other embodiments, the shapes of the support section 13 and / or the filter section 14 are not limited.

[0046] The outer packaging 11 may further include a packaging film 112 that wraps around at least a portion of the support section 13 and the filter section 14. The material of the packaging film 112 may include, but is not limited to, one or more of paper sheets, paper tubes, foil sheets, and foil tubes. In this embodiment, the outer packaging 11 completely wraps around the support section 13 and the filter section 14, and may also wrap around a portion of the upper end of the thermally conductive film 111. Of course, in other embodiments, the lower end face of the packaging film 112 may abut against or be spaced from the upper end face of the thermally conductive film 111, or the thermally conductive film 111 may wrap around a portion of the lower end of the packaging film 112.

[0047] like Figure 2 As shown, when the aerosol generating product 10 is housed in the aerosol generating device 20, the filter section 14 can be exposed outside the aerosol generating device 20 for direct use by the user for suction. Alternatively, the filter section 14 can also be housed in the aerosol generating device 20 and suctioned through the suction nozzle 26 on the aerosol generating device 20.

[0048] For example Figure 2 , Figure 3 , Figure 7 , Figure 8 As shown, the heating element 22 includes a heating body 222, which is used to contain and heat the card-type dense medium 12. The shape of the heating body 222 matches the shape of the card-type dense medium 12; that is, the heating body 222 is a flat tube, such as a racetrack-shaped tube. The width dimension W2 of the cross-section of the heating body 222 is greater than the thickness dimension D2, which greatly shortens the heat transfer path and can reduce the preheating time of the card-type dense medium 12 to within 10 seconds, improving the user experience.

[0049] To address the common problem of easy deformation in flat heating elements 22, the tube of the heating element 22 can be glazed to form a glaze layer on the outer wall of the tube, thereby enhancing the strength of the tube.

[0050] In some embodiments, the heating element 22 may further include a guide portion 221 disposed at one end of the heating body 222, the cross-sectional area of ​​the guide portion 221 gradually increasing in the direction away from the heating body 222, so that the aerosol generating article 10 can be conveniently inserted into the heating body 222 via the guide portion 221.

[0051] In some embodiments, the heating element 22 may further include a mounting portion 223 disposed at the other end of the heating body 222. The cross-sectional area of ​​the mounting portion 223 gradually increases in the direction away from the heating body 222, and the heating element 22 can be fitted onto the support base 27 via the mounting portion 223. Furthermore, the mounting portion 223 and the guide portion 221 may be symmetrically arranged, so that the installation direction of the heating element 22 does not need to be considered during installation.

[0052] The heating element 22 can be integrally molded. Of course, in other embodiments, the mounting part 223 and / or the guide part 221 can be separately molded from the heating body 222 and then assembled together.

[0053] In some embodiments, the housing 29 may include a cylindrical housing 24, a suction nozzle 26 disposed at one end (shown as the upper end) of the cylindrical housing 24, and a support 28 disposed at the other end (shown as the lower end) of the cylindrical housing 24. An air intake channel 260 is formed through the suction nozzle 26, and a filter segment 14 is at least partially accommodated in the air intake channel 260, with the porous structure on the filter segment 14 communicating with the air intake channel 260.

[0054] In some embodiments, the nozzle 26 can be detachably mounted on the upper end of the cylindrical housing 24 via a snap-fit ​​connection, magnetic connection, or other means. This allows for easy removal and replacement of the aerosol generating product 10 with a new one after heating is complete, by detaching the nozzle 26 from the cylindrical housing 24. Alternatively, in other embodiments, the nozzle 26 can be connected to the cylindrical housing 24 via a sliding or rotating connection, also enabling the replacement and reuse of the aerosol generating product 10.

[0055] In some embodiments, the aerosol generating device 20 may further include a heat insulation member 23 sleeved around the heating element 22. The heat insulation member 23 is disposed between the cylindrical shell 24 and the heating element 22, and may have one or more layers. It can reduce the heat transferred from the heating element 22 to the cylindrical shell 24, preventing the cylindrical shell 24 from becoming too hot and affecting the user experience. Understandably, the material and form of the heat insulation member 23 are not limited. For example, the heat insulation member 23 may be one or more layers of aerogel; or, the heat insulation member 23 may be an air insulation structure.

[0056] In some embodiments, the aerosol generating apparatus 20 may further include a top cover 25 and a support base 27. The top cover 25 is disposed in the upper opening of the cylindrical housing 24 and defines the upper positions of the heat insulation member 23 and the heating element 22. The top cover 25 is also provided with a through hole 250 for the aerosol generating article 10 to pass through. The support base 27 is disposed in the lower opening of the cylindrical housing 24 and defines the lower positions of the heat insulation member 23 and the heating element 22. The support base 27 is provided with at least one air inlet 270 for outside air to enter through the air inlet 120.

[0057] In some embodiments, the support 27 may include a base 271 and a sleeve portion 272 protruding upward from the upper end face of the base 271. The sleeve portion 272 is annular or annular with a notch, and the mounting portion 223 of the heating element 22 is fitted onto the sleeve portion 272. An air inlet 270 is disposed through the base 271 and located within the annular area defined by the sleeve portion 272. Further, there may be multiple air inlets 270, which may be evenly spaced in the width direction and / or thickness direction of the aerosol generating article 10.

[0058] Understandably, the above-mentioned technical features can be used in any combination without restriction.

[0059] The above embodiments merely illustrate specific implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can freely combine the above technical features without departing from the concept of the present invention, and can also make several modifications and improvements, all of which fall within the protection scope of the present invention. Therefore, all equivalent transformations and modifications made with respect to the scope of the claims of the present invention should fall within the scope of the claims of the present invention.

Claims

1. An aerosol-generating product, characterized in that, include: Card-type dense medium (12); The card-type dense medium (12) has multiple pores (120) formed throughout it.

2. The aerosol-generating product according to claim 1, characterized in that, The density of the card-type dense medium (12) is 0.8 g / mm². 3 ~1.5g / mm 3 .

3. The aerosol-generating product according to claim 1, characterized in that, The width of the cross-section of the card-type dense medium (12) is 8mm to 14mm, and the thickness is 1.5mm to 3mm.

4. The aerosol-generating product according to claim 1, characterized in that, The outer surface of the card-type dense medium (12) has a plurality of grooves (122), each groove (122) extending along the axial direction of the card-type dense medium (12), and the plurality of grooves (122) are evenly spaced along the width direction of the card-type dense medium (12).

5. The aerosol-generating product according to claim 1, characterized in that, The aerosol-generating product also includes: A thermally conductive film (111) wrapped around the card-type dense medium (12); The thermally conductive film (111) comprises aluminum foil or tin foil.

6. The aerosol-generating article according to any one of claims 1-5, characterized in that, The aerosol-generating product also includes: A support section (13) having at least one through hole (130) that communicates with the plurality of air holes (120); The filter section (14), the card-type dense medium (12), the support section (13), and the filter section (14) are arranged sequentially along the axial direction of the aerosol-generating article; and A packaging film (112) that wraps around at least part of the support section (13) and the filter section (14).

7. An aerosol generating apparatus for heating the aerosol-generating article as described in any one of claims 1-6, characterized in that, include: The outer casing (29) has a receiving cavity (220) formed therein for accommodating at least a portion of the aerosol-generating article.

8. The aerosol generating apparatus according to claim 7, characterized in that, The aerosol generating device further includes: A heating element (22) is disposed in the outer casing (29); The heating element (22) is disposed on the outside of the card-type dense medium (12) or inserted into the card-type dense medium (12).

9. The aerosol generating apparatus according to claim 8, characterized in that, The heating element (22) is a flat tube that matches the shape of the card-type dense medium (12), and the inner wall surface of the heating element (22) defines at least a portion of the receiving cavity (220).

10. The aerosol generating apparatus according to claim 9, characterized in that, The outer surface of the heating element (22) is provided with a glaze layer.

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