Aerosol-generating product and aerosol-generating system

Abstract

Provided in the embodiments of the present disclosure are an aerosol-generating product and an aerosol-generating system. The aerosol-generating system comprises an aerosol-generating device and an aerosol-generating product. The aerosol-generating device comprises an accommodating member. The accommodating member has an accommodating cavity formed therein, and is configured to accommodate at least part of the aerosol-generating product in the accommodating cavity. In the circumferential direction of the aerosol-generating product, the gap between the aerosol-generating product and the accommodating member varies at at least two positions.

Description

An aerosol generating article and an aerosol generating system

[0001] The present disclosure is based on and claims priority to Chinese Patent Application No. 202410702831.7, filed on May 31, 2024, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present disclosure relates to the field of atomization technology, and in particular, to an aerosol generating article and an aerosol generating system. BACKGROUND

[0003] An aerosol generating device is an electronic delivery system that controls the working state and the amount of aerosol output by a control circuit and a heating element for a user to use. The existing aerosol medium (such as a cigarette medium) to be heated and the side wall of the containing cavity for containing the aerosol medium usually have a spacing, which can be used for air intake. In the related art, the spacing between the aerosol medium and the side wall of the containing cavity is usually the same, and when the aerosol medium is heated, it will expand, thereby causing the spacing between the aerosol medium and the side wall of the containing cavity to become zero, that is, the aerosol medium and the side wall of the containing cavity are in contact, and there is no gap between them, which will cause the air intake airway to be blocked, the suction resistance to increase, the suction to be unstable, and the user's experience to be poor. SUMMARY

[0004] Therefore, the embodiments of the present disclosure aim to provide an aerosol generating article and an aerosol generating system, which can improve the stability of suction and improve the user's experience.

[0005] To achieve the above-mentioned purpose, one aspect of the embodiments of the present disclosure provides an aerosol generating system, which comprises an aerosol generating device and an aerosol generating article, the aerosol generating device comprises a containing member, the containing member forms a containing cavity and is used for containing at least part of the aerosol generating article in the containing cavity.

[0006] In the circumferential direction of the aerosol generating article, there are at least two positions where the gap between the aerosol generating article and the containing member is different.

[0007] In some embodiments, the aerosol generating article comprises a medium segment, and there are at least two positions where the gap between the medium segment and the containing member is different.

[0008] In some embodiments, part of the outer side wall of the medium segment is recessed to form a groove, and the groove wall of the groove and the containing member define an airway.

[0009] In some embodiments, the gap between the groove and the containing member is less than or equal to 0.8 mm.

[0010] In some embodiments, the depth of the groove is less than or equal to 0.5 mm.

[0011] In some embodiments, the gap between the medium segment (excluding the groove) and the receiving element is less than or equal to 0.8 mm.

[0012] In some embodiments, the gap between the groove and the receiving member is 0.1mm-0.5mm.

[0013] In some embodiments, the depth of the groove is 0.05mm-0.3mm.

[0014] In some embodiments, the gap between the medium segment (excluding the groove) and the receiving element is 0.05mm-0.3mm.

[0015] In some embodiments, the groove has a V-shaped, arc-shaped, or polygonal cross-sectional shape on a section perpendicular to the axial direction of the medium segment.

[0016] In some embodiments, there are multiple grooves, and each groove is spaced apart circumferentially along the medium segment.

[0017] In some embodiments, in a cross-section perpendicular to the axial direction of the medium segment, the cross-section of the medium segment includes a curved segment and a straight segment, and the gap between the curved segment and the receiving member is larger than the gap between the straight segment and the receiving member.

[0018] In some embodiments, the gap between the curved segment and the receiving member is 0.15mm-0.8mm.

[0019] In some embodiments, a portion of the outer sidewall of the medium segment is recessed to form a groove, the groove wall defining an air passage between the groove wall and the receiving member, the groove extending axially along the medium segment; the outer sidewall of the medium segment located at the curved segment does not form the groove, or the depth of the groove located at the curved segment is less than the depth of the groove located at the straight segment.

[0020] In some embodiments, in a cross-section perpendicular to the axial direction of the medium segment, the cross-section of the medium segment is a closed shape formed by alternating connections of two curve segments with the same curvature and two parallel straight line segments.

[0021] In some embodiments, the distance between the outer wall of the medium segment and the center of the medium segment is a first distance, and the distance between the outer wall of the medium segment and the receiving member is a second distance, wherein the first distance and the second distance are negatively correlated.

[0022] In some embodiments, the aerosol generating device is provided with an air inlet, and the gap between the region of the medium segment facing the air inlet and the receiving element is greater than the gap between other regions of the medium segment and the receiving element.

[0023] In some embodiments, the cross-sectional shape of the medium segment is circular, elliptical, racetrack-shaped, polygonal, or sector-shaped in a section perpendicular to the axial direction of the medium segment.

[0024] In some embodiments, a portion of the inner sidewall of the receiver is recessed to form a groove, the groove wall defining an air passage between the groove and the medium segment, the groove extending axially along the medium segment.

[0025] In some embodiments, a portion of the inner sidewall of the receiver protrudes to form a support.

[0026] One aspect of this disclosure provides an aerosol generating article applied to the aerosol generating system described above.

[0027] The aerosol generation system provided in this disclosure includes an aerosol generation device and an aerosol generation article. The aerosol generation device includes a receiving member. The receiving member forms a receiving cavity and is used to receive at least a portion of the aerosol generation article within the receiving cavity. Along the circumference of the aerosol generation article, there are at least two positions with different gaps between the aerosol generation article and the receiving member, that is, the aerosol generation article and the receiving member are not equidistant along the circumference of the aerosol generation article. Thus, when the aerosol generation article expands due to heat, the gap size between the aerosol generation article and the receiving member simultaneously decreases along the circumference of the aerosol generation article until they come into contact at the position with the smallest gap size. However, there is still a gap at the position with the larger gap size between the aerosol generation article and the receiving member, so that the aerosol generation system still has a certain air intake function. This can solve the problem of air intake channel blockage caused by the thermal expansion of the aerosol generation article, improve the stability of suction, and enhance the user experience. Furthermore, since it is not necessary to increase the gap between the aerosol generating product and the container to avoid the problem of air inlet blockage caused by thermal expansion of the aerosol generating product, the heat transfer path is shortened to a certain extent, which is conducive to rapid and efficient heating, improves heat transfer efficiency, enhances heating performance, and thus improves atomization effect. Attached Figure Description

[0028] Figure 1 is a partial structural schematic diagram of the aerosol generation system according to the first embodiment of this disclosure;

[0029] Figure 2 is a cross-sectional view from the first perspective of Figure 1;

[0030] Figure 3 is a cross-sectional view of Figure 1 from a second perspective;

[0031] Figure 4 is an enlarged view of point A in Figure 3;

[0032] Figure 5 is a cross-sectional view of the aerosol generation system of the second embodiment of the present disclosure, and its cross-sectional direction is the same as that of Figure 3.

[0033] Figure 6 is a cross-sectional view of the aerosol generation system according to the third embodiment of the present disclosure, and its cross-sectional direction is the same as that of Figure 3.

[0034] Figure 7 is a cross-sectional view of the aerosol generation system of the fourth embodiment of this disclosure, and its cross-sectional direction is the same as that of Figure 3.

[0035] Figure 8 is a cross-sectional view of an aerosol generation system in the prior art. Its cross-sectional direction is the same as that in Figure 3, and it shows the state before the expansion of the medium section.

[0036] Figure 9 is a cross-sectional view of an aerosol generation system in the prior art. Its cross-sectional direction is the same as that in Figure 3, and it shows the state after the medium section has expanded.

[0037] Explanation of reference numerals in the attached drawings: 10. Shell assembly; 11. Shell body; 11a. Installation space; 11b. Opening; 111. Outer shell; 112. Mounting bracket; 12. Air outlet unit; 12a. Air outlet channel; 12b. Air supply channel; 20. Heating unit; 21. Connector; 22. Heating element; 30. Medium section; 30a. Groove; 30b. Airflow channel; 30c. Curved section; 30d. Straight section; 40. Thermal insulation element; 100. Aerosol generation system; 100a. Receiving cavity. Detailed Implementation

[0038] It should be noted that, unless otherwise specified, the embodiments and technical features in the embodiments of this disclosure can be combined with each other, and the detailed descriptions in the specific embodiments should be understood as explanations of the purpose of this disclosure and should not be regarded as undue limitations on this disclosure.

[0039] In the description of the embodiments of this disclosure, it should be noted that the terms "upper," "lower," "top," "bottom," "first direction," and "second direction," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in Figures 2 and 5. These orientation terms are only for the convenience of describing the embodiments of this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this disclosure. The disclosure will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0040] One aspect of this disclosure provides an aerosol generation system. Referring to Figures 1 to 7, the aerosol generation system 100 includes an aerosol generation device and an aerosol generation article.

[0041] The aerosol generation system of this disclosure is applicable to both peripheral heating and central heating methods. In the peripheral heating method, the container 22 can be a heating element, and the container 22 is used to heat the medium section 30 to generate aerosols. In the central heating method, the container 22 is not a heating element; the container 22 is used to contain the aerosol generation product, and the heating element of the aerosol generation device is disposed within the medium section 30 to heat the medium section 30 to generate aerosols. The following description uses the peripheral heating method as an example, where the container 22 is a heating element.

[0042] By way of example, the aerosol generating apparatus includes a containment member 22, which forms a containment cavity 100a and is used to contain at least a portion of the aerosol generating article within the containment cavity 100a.

[0043] For example, the aerosol generating apparatus includes a housing assembly 10. The housing assembly 10 is provided with a mounting space 11a. The accommodating member 22 is at least partially disposed within the mounting space 11a.

[0044] Along the circumference of the aerosol-generating article, there are at least two positions with different gaps between the aerosol-generating article and the container 22.

[0045] For example, the aerosol generation system 100 includes a heating unit 20, which includes a housing 22 and a connector 21. The housing 22 is connected to the housing assembly 10 via the connector 21.

[0046] The aerosol-generating product includes a medium section 30.

[0047] The aerosol generating article is placed in the containment cavity 100a, and the containment member 22 is used to heat the medium section 30 to generate aerosol.

[0048] It should be noted that in this embodiment, the medium segment 30 is in solid form.

[0049] The structure of the aerosol generating article is not limited. Exemplarily, in some embodiments, the aerosol generating article may include a functional segment and a medium segment 30, with the functional segment disposed at one end of the medium segment 30 along the axial direction. It should be noted that the aerosol generating article relies on the medium segment 30 to generate aerosols, while the functional segment does not generate aerosols.

[0050] The functional section may include a cooling section for cooling the aerosol, thereby reducing its temperature and alleviating the "burning" sensation experienced by users when inhaling it. The functional section may also include a support section with structural strength to limit the axial movement of the media section 30. The functional section may further include a filtration section for filtering the aerosol.

[0051] In other embodiments, the aerosol-generating article does not include functional segments.

[0052] The aerosol generating article may also include an outer coating layer that surrounds the outer periphery of the functional section and the medium section 30. Of course, the aerosol generating article may also not have an outer coating layer. Specifically, in the embodiments of this disclosure, an aerosol generating article without an outer coating layer is used as an example for illustration.

[0053] The material of the medium segment 30 is not limited. Exemplarily, aerosol-generated articles include, but are not limited to, pharmaceuticals, nicotine-containing materials, or nicotine-free materials. In one embodiment, the medium segment 30 may include tobacco material. In one example, the medium segment 30 is provided with a macroscopic internal airflow channel 30b. The medium segment 30 can be manufactured by extrusion, die casting, or other methods, and the internal airflow channel 30b can be directly formed by extrusion, die casting, or other methods. Of course, the medium segment 30 may also have microscopic ventilation holes, which is not limited here.

[0054] The aerosol-generated products include, but are not limited to, materials used for medical, health, and beauty purposes.

[0055] Another aspect of the present disclosure provides an aerosol generating article, as shown in Figures 2 to 7. The aerosol generating article is applied to the aerosol generating system 100 of any embodiment of the present disclosure.

[0056] For example, the heating unit 20 is at least partially disposed within the installation space 11a. The heating unit 20 may be partially disposed within the installation space 11a or may be entirely disposed within the installation space 11a.

[0057] For example, the accommodating cavity 100a formed by the accommodating member 22 for accommodating at least a portion of the aerosol-generating article means that the accommodating cavity 100a can be used to accommodate a portion of the aerosol-generating article or to accommodate all of the aerosol-generating article.

[0058] The aerosol generating article of this embodiment is described using peripheral heating as an example. Specifically, the containment member 22 heats the aerosol generating article peripherally. Peripheral heating means that the containment member 22 is positioned around the periphery of the aerosol generating article to bake and heat the medium section 30 from the outside in. The heating method can specifically include resistance heating, electromagnetic heating, infrared heating, microwave heating, laser heating, air heating, electric field heating, carbon source heating, etc., and is not specifically limited here.

[0059] For example, the aerosol generating apparatus also includes a power supply device electrically connected to the housing 22.

[0060] The power supply unit is mainly used to supply power to the container 22 and to control the opening and closing of the entire aerosol generating device.

[0061] It should be noted that the specific type of aerosol generating device provided in the embodiments of this disclosure is not limited. For example, the aerosol generating device can be a medical nebulizer, an air humidifier, or an electronic cigarette or other nebulizer.

[0062] The housing assembly 10 can be understood as the main body of the aerosol generating device, and the housing assembly 10 constitutes the general framework of the aerosol generating device.

[0063] At least a portion of the housing assembly 10 can serve as the exterior of the aerosol generating device, and the mounting space 11a facilitates the installation of the heating unit 20.

[0064] Along the circumference of the aerosol generating article, there are at least two positions where the aerosol generating article and the container 22 have different gaps. In other words, the gap size at at least one position between the aerosol generating article and the container 22 is different from the gap size at other positions. That is, along the circumference of the aerosol generating article, the aerosol generating article and the container 22 are not equidistant.

[0065] For example, the aerosol generating article includes a medium segment 30, and there are at least two locations with different gaps between the medium segment 30 and the containment member 22 along the circumference of the medium segment 30.

[0066] In related technologies, Figure 8 shows the state of the medium segment 30' before expansion. The distance between the medium segment 30' and the receiving member 22' is usually the same. When the medium segment 30' is heated, it expands, causing the distance between the medium segment 30' and the receiving member 22' to become zero, that is, the medium segment 30' and the receiving member 22' come into contact (as shown in Figure 9, the state of the medium segment after expansion). The lack of gap between them will lead to blockage of the air intake passage, increased suction resistance, unstable suction, and a poor suction experience. Alternatively, to avoid blocking the air intake passage, the gap between them needs to be increased. However, a gap that is too large will affect the heating rate of the medium segment 30' by the receiving member 22', resulting in low heat transfer efficiency.

[0067] The aerosol generation system provided in this disclosure includes an aerosol generation device and an aerosol generation article. The aerosol generation device includes a receiving member 22. The receiving member 22 forms a receiving cavity 100a and is used to accommodate at least a portion of the aerosol generation article within the receiving cavity 100a. Along the circumference of the medium segment 30, there are at least two positions with different gaps between the medium segment 30 and the receiving member 22, that is, the medium segment 30 and the receiving member 22 are not equidistant along the circumference of the medium segment 30. Thus, when the medium segment 30 is heated and expands, the gap size between the medium segment 30 and the receiving member 22 simultaneously decreases along the circumference of the medium segment 30 until they come into contact at the position with the smallest gap size. However, there is still a gap at the position with a larger gap size between the medium segment 30 and the receiving member 22, so that the aerosol generation system 100 still has a certain air intake function. This can solve the problem of air intake channel blockage caused by the thermal expansion of the medium segment 30, improve the stability of suction, and enhance the user experience. Furthermore, since it is not necessary to increase the gap between the medium section 30 and the housing 22 to avoid the problem of the medium section 30 being blocked due to thermal expansion, the heat transfer path is shortened to a certain extent, which is conducive to rapid and efficient heating, improves heat transfer efficiency, enhances heating performance, and thus improves atomization effect.

[0068] It should be noted that there are several ways to make the aerosol generating product and the container 22 unequally spaced.

[0069] In some embodiments, referring to Figures 3 to 7, a portion of the outer sidewall of the medium segment 30 is recessed to form a groove 30a, and an air passage is defined between the groove wall of the groove 30a and the receiving member 22.

[0070] For example, the groove 30a extends axially along the medium segment 30.

[0071] In this embodiment, a groove 30a is formed by recessing part of the outer wall of the medium segment 30, so that the gap between the medium segment 30 without the groove 30a and the receiving member 22 is smaller than the gap between the groove wall of the groove 30a and the receiving member 22. Thus, when the medium segment 30 expands due to heat, the gap between the medium segment 30 and the receiving member 22 decreases along the circumference of the medium segment 30 until the medium segment 30 without the groove 30a contacts the receiving member 22. At this time, there is still a gap between the groove wall of the groove 30a and the receiving member 22, and the groove 30a extends along the axial direction of the medium segment 30. That is, the groove wall of the groove 30a and the receiving member 22 define an air passage that extends along the axial direction of the medium segment 30. This allows the aerosol generation system 100 to still have a certain air intake function, which can solve the problem of air intake passage blockage caused by the thermal expansion of the medium segment 30, improve the stability of suction, and enhance the user experience.

[0072] In other embodiments, a groove 30a may be formed by recessing part of the inner sidewall of the receiving member 22, and an air passage may be defined between the groove wall of the groove 30a and the medium section 30, with the groove 30a extending axially along the medium section 30.

[0073] In this embodiment, by recessing a portion of the inner wall of the receiving member 22 to form a groove 30a, the gap between the receiving member 22 at the location where the groove 30a is not formed and the medium segment 30 is smaller than the gap between the groove wall of the groove 30a and the medium segment 30. Thus, when the medium segment 30 expands due to heat, the gap between the medium segment 30 and the receiving member 22 simultaneously decreases along the circumference of the medium segment 30 until the location where the receiving member 22 does not form the groove 30a contacts the medium segment 30. At this point, there is still a gap between the groove wall of the groove 30a and the medium segment 30, and the groove 30a extends axially along the medium segment 30. That is, the groove wall of the groove 30a and the medium segment 30 define an air passage extending axially along the medium segment 30, so that the aerosol generation system 100 still has a certain air intake function. This can solve the problem of air intake passage blockage caused by the thermal expansion of the medium segment 30, improve the stability of suction, and enhance the user experience.

[0074] In some other embodiments, a portion of the inner sidewall of the receiving member 22 may protrude to form a support portion.

[0075] In this embodiment, by protruding a portion of the inner wall of the container 22 to form a support portion, the gap between the support portion and the medium segment 30 is smaller than the gap between the container 22 without the support portion and the medium segment 30. Thus, when the medium segment 30 expands due to heat, the gap between the medium segment 30 and the container 22 simultaneously decreases along the circumference of the medium segment 30 until the support portion contacts the medium segment 30. At this point, there is still a gap between the container 22 without the support portion and the medium segment 30, that is, the space between the container 22 without the support portion and the medium segment 30 defines an air passage extending axially along the medium segment 30. This allows the aerosol generation system 100 to still have a certain air intake function, which can solve the problem of air intake passage blockage caused by the thermal expansion of the medium segment 30, improve the stability of suction, and enhance the user experience.

[0076] In some embodiments, referring to Figures 3 to 7, the gap between the groove 30a and the receiving member 22 is less than or equal to 0.8 mm. For example, it is 0.01 mm, 0.02 mm, 0.03 mm, 0.04 mm, 0.05 mm, 0.08 mm, 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, or 0.8 mm, etc.

[0077] Here, the gap dimension between the groove 30a and the receiving member 22 is L2 as shown in Figure 4.

[0078] It is understandable that if the gap between the groove 30a and the receiving member 22 is too large, it will affect the heating speed of the medium section 30 by the receiving member 22 and will not be conducive to the forming of the medium section 30 at the groove 30a.

[0079] In this embodiment, by setting the gap between the groove 30a and the accommodating member 22 to be less than or equal to 0.8 mm, the aerosol generation system 100 can have a certain air intake function after the medium section 30 is heated and expanded, which is conducive to the molding of the medium section 30 and also conducive to rapid and efficient heating.

[0080] Furthermore, the gap between the groove 30a and the receiving member 22 is 0.1mm-0.5mm.

[0081] In this way, after the medium section 30 expands due to heat, the aerosol generation system 100 can have a good air intake function, which is more conducive to the molding of the medium section 30 and also facilitates rapid and efficient heating.

[0082] In some embodiments, as shown in Figures 3 to 7, the depth of the groove 30a is less than or equal to 0.5 mm. For example, it is 0.1 mm, 0.15 mm, 0.2 mm, 0.25 mm, 0.3 mm, 0.35 mm, 0.4 mm, 0.45 mm, or 0.5 mm, etc.

[0083] Here, the depth dimension of the groove 30a is L3 as shown in Figure 4.

[0084] It is understandable that if the depth of the groove 30a is too large, it will affect the heating speed of the medium segment 30 located in the groove 30a by the receiving part 22, and will be detrimental to the forming of the medium segment 30 in the groove 30a.

[0085] In this embodiment, by setting the depth of the groove 30a to less than or equal to 0.5mm, the aerosol generation system 100 can have a certain air intake function after the medium segment 30 is heated and expanded, which is conducive to the molding of the medium segment 30 and also facilitates the rapid and efficient heating of the medium segment 30 at the groove 30a by the receiving member 22.

[0086] Furthermore, the depth of the groove 30a is 0.05mm-0.3mm.

[0087] In this way, after the medium section 30 expands due to heat, the aerosol generation system 100 can have a good air intake function, which is more conducive to the molding of the medium section 30 and also facilitates rapid and efficient heating.

[0088] In some embodiments, referring to Figures 3 to 7, the gap between the medium segment 30 (excluding the groove 30a) and the receiving member 22 is less than or equal to 0.8 mm. For example, it is 0.01 mm, 0.03 mm, 0.05 mm, 0.08 mm, 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, or 0.8 mm, etc.

[0089] Here, the gap dimension between the medium section 30 (excluding the groove 30a) and the receiving member 22 is shown as L1 in Figure 4.

[0090] It is understandable that if the gap between the medium section 30 and the receiving member 22 is too large, except for the groove 30a, it will affect the heating speed of the medium section 30 by the receiving member 22.

[0091] In this embodiment, by setting the gap between the medium segment 30 (excluding the groove 30a) and the receiving member 22 to be less than or equal to 0.8 mm, it is beneficial to carry out rapid and efficient heating.

[0092] Furthermore, the gap between the medium section 30 (excluding the groove 30a) and the receiving member 22 is 0.05mm-0.3mm.

[0093] In some embodiments, the cross-sectional shape of the groove 30a in a section perpendicular to the axial direction of the medium segment 30 is V-shaped, arc-shaped, or polygonal.

[0094] Specifically, the cross-sectional shape of the groove 30a is V-shaped. The V-shape means that on the cross-section perpendicular to the axial direction of the medium section 30, the cross-section of the groove 30a is composed of two roughly straight sides.

[0095] The term "arc shape" means that, on a cross section perpendicular to the axial direction of the medium section 30, the cross section of the groove 30a is formed by a roughly arc-shaped edge.

[0096] A polygon can have any number of sides and can be a regular polygon or a polygon with sides that are not all equal.

[0097] In this embodiment, the shape of the groove 30a is relatively more regular, which facilitates the opening of the groove 30a.

[0098] Of course, the cross-section of the groove 30a is not limited to the above-mentioned shapes. The edge constituting the groove 30a can also be formed by a combination of various lines. Thus, the groove 30a with an irregular cross-sectional shape is formed on the cross-section perpendicular to the axial direction of the medium segment 30.

[0099] It should be noted that the number of grooves 30a is not limited here. There can be one or more. "Multiple" refers to any number of two or more.

[0100] In some embodiments, please refer to Figures 3 to 7, there are multiple grooves 30a, and each groove 30a is arranged at circumferential intervals along the medium segment 30.

[0101] Of course, it can be evenly spaced or have irregularly spaced intervals.

[0102] In some embodiments, referring to FIG6, in a cross section perpendicular to the axial direction of the medium segment 30, the cross section of the medium segment 30 includes a curved segment 30c and a straight segment 30d, and the gap between the curved segment 30d and the receiving member 22 is greater than the gap between the straight segment 30d and the receiving member 22.

[0103] Specifically, in a cross section perpendicular to the axial direction of the medium segment 30, the cross section of the medium segment 30 is a closed shape formed by alternating connections of two curved segments 30c with the same curvature and two parallel straight segments 30d. The gap between the curved segment 30c and the receiving member 22 is larger than the gap between the straight segment 30d and the receiving member 22.

[0104] Here, the cross-section of the medium segment 30 is a closed figure formed by alternating connections of two curved segments 30c with the same curvature and two parallel straight segments 30d. That is, the cross-section of the medium segment 30 is roughly track-shaped or completely track-shaped. Track-shaped refers to a shape similar to an athletic track, formed by alternating connections of two semicircles of the same radius and two parallel straight edges.

[0105] In this embodiment, by setting the gap between the curved segment 30c of the medium segment 30 and the container 22 to be larger than the gap between the straight segment 30d and the container 22, that is, increasing the distance between the curved segment 30c and the container 22 while keeping the distance between the straight segment 30d and the container 22 relatively small, when the medium segment 30 expands due to heat, the gap between the medium segment 30 and the container 22 simultaneously decreases along the circumference of the medium segment 30 until the straight segment 30d contacts the container 22. However, a gap still exists between the curved segment 30c and the container 22, allowing the aerosol generation system 100 to still have a certain air intake function. Furthermore, because the medium in the curved segment 30c of the medium segment 30 has a larger distance from the container 22, the heat transfer time is longer, thus delaying the heating time of the medium in the curved segment 30c of the medium segment 30. This achieves better effects of slow release and consistent aerosol distribution.

[0106] In some embodiments, referring to Figure 6, the gap between the curved segment 30c and the receiving member 22 is 0.15mm-0.8mm. For example, it is 0.15mm, 0.18mm, 0.2mm, 0.24mm, 0.25mm, 0.28mm, 0.3mm, 0.35mm, 0.4mm, 0.46mm, 0.5mm, 0.54mm, 0.6mm, 0.66mm, 0.7mm, 0.75mm, or 0.8mm, etc.

[0107] Here, the gap dimension between the curved segment 30c and the receiving member 22 is L4 as shown in Figure 6.

[0108] By setting the gap between the curved segment 30c and the container 22 to 0.15mm-0.8mm, and making the gap between the curved segment 30c and the container 22 larger than the gap between the straight segment 30d and the container 22, the medium in the medium segment 30 located in the curved segment 30c has a larger distance from the container 22 and a longer heat transfer time. Therefore, the heating time of the medium in the medium segment 30 located in the curved segment 30c will be delayed, which can achieve better effects of slow release of aerosol and consistency from one port to another.

[0109] In some embodiments, referring to FIG6, a portion of the outer sidewall of the medium segment 30 is recessed to form a groove 30a. An air passage is defined between the groove wall of the groove 30a and the receiving member 22. The groove 30a extends axially along the aerosol-generating article. The outer sidewall of the medium segment 30 located at the curved segment 30c does not form a groove 30a, or the depth of the groove 30a located at the curved segment 30c is less than the depth of the groove 30a located at the straight segment 30d.

[0110] Here, the outer wall of the medium segment 30 located at the curved segment 30c does not form a groove 30a. That is to say, the outer wall of the medium segment 30 located at the straight segment 30d only forms a groove 30a, while the outer wall located at the curved segment 30c does not form a groove 30a. The depth of the groove 30a located at the curved segment 30c is less than the depth of the groove 30a located at the straight segment 30d, which is equivalent to the medium of the medium segment 30 located at the curved segment 30c having a larger distance from the receiving member 22.

[0111] In this way, the medium in the curved section 30c of the medium segment 30 has a larger distance from the container 22, resulting in a longer heat transfer time. This delays the heating time of the medium in the curved section 30c. At the same time, a groove 30a is formed on the outer wall of the medium segment 30 in the straight section 30d. When the medium segment 30 expands due to heat, the aerosol generation system 100 has a certain air intake function along the circumference of the medium segment 30.

[0112] It should be noted that the specific shape of the medium segment 30 is not limited here.

[0113] In some embodiments, please refer to FIG6, the distance between the outer wall of the medium segment 30 and the center of the medium segment 30 is the first distance, and the distance between the outer wall of the medium segment 30 and the receiving member 22 is the second distance. The first distance and the second distance are negatively correlated.

[0114] The negative correlation between the first distance and the second distance means that the second distance decreases (increases) as the first distance increases (decreases). In this case, the correlation coefficient between the first distance and the second distance is negative, i.e., negatively correlated.

[0115] Here, the greater the distance between the outer wall of the medium segment 30 and the center of the medium segment 30, i.e., the greater the first distance, the greater the thickness of the medium segment 30 in that region. Conversely, the smaller the distance between the outer wall of the medium segment 30 and the center of the medium segment 30, i.e., the smaller the first distance, the smaller the thickness of the medium segment 30 in that region.

[0116] In this embodiment, as the distance between the outer wall of the medium segment 30 and the center of the medium segment 30 decreases, i.e. the first distance decreases, the gap between the outer wall of the medium segment 30 and the receiving member 22 is set to increase. In this way, the gap at the thinner part of the medium segment 30 is larger, so that more heat is carried away by the air at the thinner part, the temperature is not easy to get too high, and it is not easy to be locally heated to an excessively high temperature and produce a burnt smell.

[0117] In some embodiments, the aerosol generating device is provided with an air inlet, and the gap between the region of the medium section 30 facing the air inlet and the container 22 is greater than the gap between other regions of the medium section 30 and the container 22.

[0118] In this embodiment, by setting the gap between the area of ​​the medium section 30 facing the air inlet and the housing 22 to be larger than the gap between other areas of the medium section 30 and the housing 22, it is beneficial for air to enter, thereby ensuring the air intake volume.

[0119] As in the embodiment, the curved segment 30c of the racetrack-shaped medium section 30 has a large gap to ensure air intake. In some embodiments, please refer to Figures 3 to 7. On a cross-section perpendicular to the axial direction of the medium section 30, the cross-sectional shape of the medium section 30 is circular, elliptical, racetrack-shaped, polygonal, or fan-shaped.

[0120] In some embodiments, referring to FIG2, the heating unit 20 includes a connector 21 and a receiving member 22 fixed to the connector 21. The connector 21 is connected to the housing assembly 10. The receiving member 22 is located within the mounting space 11a and is used to heat the atomized aerosol generating article to generate an aerosol.

[0121] The type of the container 22 is not limited. For example, referring to Figures 2 to 7, the container 22 is tubular, and in a cross-section perpendicular to the height of the aerosol generating device (i.e., the axial direction of the medium section 30), the cross-sectional shape of the container 22 is rectangular, elliptical, trapezoidal, or racetrack-shaped. The internal space of the heating tube constitutes part of the receiving cavity 100a.

[0122] The material of the heating element is not limited. For example, it can be stainless steel or a quartz tube. The heating element is used to heat the aerosol generating article and cause it to generate an aerosol. That is, the aerosol generating article of this embodiment is heated circumferentially.

[0123] In some embodiments, referring to FIG2, the housing assembly 10 includes a housing body 11 and an air outlet unit 12 connected to the housing body 11. The housing body 11 is provided with an installation space 11a and an opening 11b communicating with the installation space 11a. The air outlet unit 12 is disposed at the opening 11b and defines at least a portion of the receiving cavity 100a. The air outlet unit 12 also forms an air outlet channel 12a communicating with the receiving cavity 100a.

[0124] The specific method of connecting the venting unit 12 to the shell body 11 is not limited here. For example, the venting unit 12 and the shell body 11 can be connected by magnetic attraction, snap-fit ​​connection, fastening connection or plug-in connection.

[0125] Fastening connections include, but are not limited to, screw connections, bolt connections, or rivet connections.

[0126] For example, the air outlet unit 12 and the housing body 11 are snap-fitted together, which facilitates the assembly and disassembly of the air outlet unit 12 and the housing body 11.

[0127] In one specific embodiment, as shown in Figures 2 to 4, the circumferential sidewall of the air outlet unit 12 has a snap-fit ​​flange, and the opening 11b of the shell body 11 has a snap-fit ​​groove. The snap-fit ​​flange engages with the groove to achieve a snap-fit ​​connection between the air outlet unit 12 and the shell body 11. In another specific embodiment, the area where the air outlet unit 12 contacts the shell body 11 is made of a soft material (e.g., rubber, silicone, etc.). When the air outlet unit 12 contacts the shell body 11, it undergoes elastic deformation and engages with the shell body 11, for example, by embedding itself into the shell body 11 through the opening 11b. When disassembly is required, the air outlet unit 12 can be simply pulled out. Of course, the entire air outlet unit 12 can also be made of a soft material; this is not a limitation.

[0128] In this embodiment, by configuring the housing assembly 10 to include the housing body 11 and the air outlet unit 12, the air outlet unit 12, through the air outlet channel 12a, allows the aerosol generated by the heating and atomizing aerosol generation product of the containment member 22 to enter the air outlet channel 12a from the containment cavity 100a and be drawn in by the user. That is, the aerosol can be filtered, cooled, etc. through the air outlet unit 12, so that the aerosol generation product does not need to be configured with functional sections and outer wrapping layers. In other words, the aerosol generation product in this embodiment can only include the medium section 30, saving the cooling, filtering and other components in the aerosol generation product, simplifying the manufacturing process and packaging volume of the aerosol generation product, reducing costs, and the functional sections are not discarded after being drawn in, which is beneficial to environmental protection.

[0129] In addition, depending on the product's style characteristics, filters and flavor enhancers can be placed inside the aerosol unit 12 to improve the aerosol's taste.

[0130] In some embodiments, the cross-sectional shape of the exhaust unit 12 is adapted to the cross-sectional shape of the opening 11b in a section perpendicular to the height direction of the aerosol generating device. This facilitates the connection between the exhaust unit 12 and the housing body 11.

[0131] In some embodiments, please refer to Figures 1 and 2. The shell body 11 includes a shell 111 and a mounting bracket 112. The mounting bracket 112 is disposed inside the shell 111 and together with the shell 111 defines a mounting space 11a and an opening 11b communicating with the mounting space 11a.

[0132] At least a portion of the housing 111 can serve as the exterior of the aerosol generating device, and the housing 111 facilitates the installation of the bracket 112 and the heating unit 20.

[0133] In some embodiments, the aerosol generating article extends beyond the shell body 11. By setting the aerosol generating article to extend beyond the shell body 11, it is easier to fix and install it with the gas outlet unit 12, and the temperature that the gas outlet unit 12 needs to withstand can be reduced, thereby increasing the service life of the gas outlet unit 12.

[0134] In other embodiments, the aerosol-generating article is located within the shell body 11. Because the aerosol-generating article is located within the shell body 11, it can be positioned as close as possible within the heating unit 20, thereby ensuring sufficient heating of the aerosol-generating article and improving its utilization rate.

[0135] In some embodiments, the end face of the aerosol generating article near the outlet unit 12 is flush with the end face of the shell body 11. Since the end face of the aerosol generating article near the outlet unit 12 is flush with the end face of the shell body 11, the aerosol generating article can be located as close as possible to the heating unit 20, thereby fully heating the aerosol generating article and improving its utilization rate.

[0136] In the description of this disclosure, references to terms such as "in one embodiment," "in some embodiments," "in other embodiments," "in yet another embodiment," or "exemplary," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the embodiments of this disclosure. In this disclosure, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, those skilled in the art can combine the different embodiments or examples described in this disclosure, as well as the features of those different embodiments or examples, without contradiction.

[0137] The above description is merely a preferred embodiment of this disclosure and is not intended to limit this disclosure. Various modifications and variations can be made to this disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure are included within the scope of protection of this disclosure.

Claims

1. An aerosol generation system, the aerosol generation system comprising an aerosol generation device and an aerosol generation article, the aerosol generation device comprising a receiving member forming a receiving cavity and for receiving at least a portion of the aerosol generation article within the receiving cavity; in, Along the circumference of the aerosol-generating article, there are at least two positions with different gaps between the aerosol-generating article and the container.

2. The aerosol generation system according to claim 1, wherein, The aerosol-generating article includes a medium segment, and there are at least two locations with different gaps between the medium segment and the containment.

3. The aerosol generation system according to claim 2, wherein, A portion of the outer sidewall of the medium section is recessed to form a groove, and the groove wall and the receiving member define an air passage.

4. The aerosol generation system according to claim 3, wherein, The gap between the groove and the receiving element is less than or equal to 0.8 mm; and / or, The depth of the groove is less than or equal to 0.5 mm; and / or, The gap between the medium segment (excluding the groove) and the receiving element is less than or equal to 0.8 mm.

5. The aerosol generation system according to claim 4, wherein, The gap between the groove and the receiving element is 0.1mm-0.5mm; and / or, The depth of the groove is 0.05mm-0.3mm; and / or, The gap between the medium section (excluding the groove) and the receiving element is 0.05mm-0.3mm.

6. The aerosol generation system according to claim 3, wherein, In a cross-section perpendicular to the axial direction of the medium segment, the cross-sectional shape of the groove is V-shaped, arc-shaped, or polygonal.

7. The aerosol generation system according to claim 3, wherein, The number of grooves is multiple, and each groove is spaced apart along the circumference of the medium segment.

8. The aerosol generation system according to claim 2, wherein, In a cross section perpendicular to the axial direction of the medium segment, the cross section of the medium segment includes a curved segment and a straight segment, and the gap between the curved segment and the receiving member is larger than the gap between the straight segment and the receiving member.

9. The aerosol generation system according to claim 8, wherein, The gap between the curved segment and the receiving element is 0.15mm-0.8mm.

10. The aerosol generation system according to claim 8, wherein, A portion of the outer wall of the medium segment is recessed to form a groove, and the groove wall defines an air passage between the groove wall and the receiving member. The groove extends axially along the medium segment. The outer wall of the medium segment located at the curved segment does not form the groove, or the depth of the groove located at the curved segment is less than the depth of the groove located at the straight segment.

11. The aerosol generation system according to claim 8, wherein, In a cross section perpendicular to the axial direction of the medium segment, the cross section of the medium segment is a closed figure formed by alternating connections of two curve segments with the same curvature and two parallel straight line segments.

12. The aerosol generation system according to claim 2, wherein, The distance between the outer wall of the medium segment and the center of the medium segment is the first distance, and the distance between the outer wall of the medium segment and the receiving member is the second distance. The first distance and the second distance are negatively correlated.

13. The aerosol generation system according to claim 2, wherein, The aerosol generating device is provided with an air inlet, and the gap between the region of the medium segment facing the air inlet and the receiving element is greater than the gap between other regions of the medium segment and the receiving element.

14. The aerosol generation system according to claim 2, wherein, In a cross-section perpendicular to the axial direction of the medium segment, the cross-sectional shape of the medium segment is circular, elliptical, racetrack-shaped, polygonal, or fan-shaped.

15. The aerosol generation system according to claim 2, wherein, A portion of the inner wall of the receiving member is recessed to form a groove, and an air passage is defined between the groove wall and the medium section, and the groove extends axially along the medium section. And / or, A portion of the inner wall of the receiving element protrudes to form a support portion.

16. An aerosol generating article, said aerosol generating article being used in an aerosol generating system according to any one of claims 1-15.

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