Aerosol-generation product, aerosol-generating device and aerosol-generation system

Abstract

An aerosol-generation product (10), an aerosol-generating device and an aerosol-generation system. The aerosol-generation product (10) comprises a first unit (1) and a second unit (2), wherein the second unit (2) is arranged at one end of the first unit (1) and comprises an aerosol-generation substrate (22); and the second unit (2) is arranged coaxially with and rotationally connected to the first unit (1), such that the second unit (2) rotates relative to the first unit (1). When the aerosol-generation product (10) is connected to the aerosol-generating device, the second unit (2) is at least partially mounted in a heating chamber (70), the second unit (2) can switch the position thereof relative to a heating region by means of rotation, the second unit (2) can generate an aerosol for a user to vape during heating, and can improve the uniformity of heating by means of rotation, and it is convenient to achieve instant vaping and stop. When the second unit (2) rotates, the first unit (1) can be stationary, such that when the relative positions between the second unit (2) and the heating region are switched, the user's habits are not changed, thereby avoiding discomfort to the user and thus improving the use experience of the user.

Description

Aerosol-generating article, aerosol generating device, and aerosol generating system TECHNICAL FIELD

[0001] The present application relates to the technical field of atomization, in particular to an aerosol-generating article, an aerosol generating device and an aerosol generating system. BACKGROUND

[0002] The heating temperature of the heat-not-burn technology is generally between 50-350℃, and compared with the ordinary combustion cigarette, the heat-not-burn cigarette can greatly reduce the release of harmful substances in tobacco while retaining the traditional cigarette taste. One of the heating forms is microwave heating, which has the advantages of high heating efficiency and fast aerosol generation.

[0003] One of the heating methods of the aerosol generating device is unilateral heating, that is, the relative position between the aerosol-generating article and the heating structure does not change, and the heating structure can only heat the aerosol-generating article on one side. For this heating method, the uniformity of heating of the aerosol-generating article needs to be improved. In order to improve the uniformity of heating of the aerosol-generating article, one of the solutions is to change the relative position between the aerosol-generating article and the heating structure, for example, the relative position between the aerosol-generating article and the heating structure can be changed by rotating the aerosol-generating article, thereby achieving zone heating every time. However, this has the defect that, in the user's perspective, the aerosol-generating article needs to be rotated during use, which does not meet the use habits of some users, and even makes some users feel uncomfortable, affecting the user experience. SUMMARY

[0004] The technical problem to be solved by the present application is to provide an improved aerosol-generating article, aerosol generating device and aerosol generating system to solve at least one of the defects of the above background technology.

[0005] The technical solution adopted by the present application to solve the technical problem is: providing an aerosol-generating article, comprising a first unit and a second unit; the second unit is arranged at one end of the first unit and comprises an aerosol-generating substrate; the second unit is coaxially arranged with the first unit and is rotationally connected, so that the second unit rotates relative to the first unit.

[0006] In some embodiments, the aerosol-generating article further comprises a connecting unit; the connecting unit is connected with at least one of the second unit and the first unit, and can coaxially rotate one of the second unit and the first unit relative to the other.

[0007] In some embodiments, the first unit is rotationally connected with the connecting unit; and / or the second unit is rotationally connected with the connecting unit.

[0008] In some embodiments, the first unit is fixedly connected with the connecting unit, and the second unit is rotatably connected with the connecting unit; or, the second unit is fixedly connected with the connecting unit, and the first unit is rotatably connected with the connecting unit.

[0009] In some embodiments, the first unit and / or the second unit is sleeved on the connecting unit; and the connecting unit is sleeved on the first unit and / or the second unit.

[0010] In some embodiments, the connecting unit comprises a first rotating member and a second rotating member which are nested inside and outside each other; the first rotating member is connected with the first unit, and the second rotating member is connected with the second unit; one of the first rotating member and the second rotating member is coaxially rotatable relative to the other, so as to coaxially rotate one of the first unit and the second unit relative to the other.

[0011] In some embodiments, the aerosol generating article further comprises a limiting structure, which comprises a first limiting structure arranged on one of the first rotating member and the second rotating member, and a second limiting structure arranged on the other of the first rotating member and the second rotating member; the first limiting structure and the second limiting structure are in clamping fit with each other, and are used for limiting the axial relative displacement between the first rotating member and the second rotating member.

[0012] In some embodiments, the first limiting structure comprises a first limiting portion, and the second limiting structure comprises a second limiting portion and a third limiting portion; the first limiting portion is arranged on one of the first rotating member and the second rotating member, and the second limiting portion and the third limiting portion are arranged in a spaced manner on the other of the first rotating member and the second rotating member; the first limiting portion is limited between the second limiting portion and the third limiting portion.

[0013] In some embodiments, the aerosol generating article has a central axis, the first limiting portion is protruded on one of the first rotating member and the second rotating member in a direction intersecting the central axis, and the second limiting portion and the third limiting portion are protruded in a spaced manner on the other of the first rotating member and the second rotating member in a direction intersecting the central axis; the first limiting portion is in clamping fit between the second limiting portion and the third limiting portion.

[0014] In some embodiments, the first limiting portion extends along a circumferential thread of one of the first rotating member and the second rotating member, the second limiting portion extends along a circumferential thread of the other of the first rotating member and the second rotating member, the third limiting portion is in an annular structure, and the first limiting portion is snap-fitted between the second limiting portion and the third limiting portion.

[0015] In some embodiments, the first rotating member is sleeved on an outer periphery of the second rotating member, the first limiting portion is disposed on an inner periphery of the first rotating member, and the second limiting portion and the third limiting portion are disposed on the outer periphery of the second rotating member; a height H2 by which the second limiting portion and the third limiting portion protrude relative to the second rotating member satisfies: R6-H1<H2+R7<R6, where R7 is a cross-sectional dimension of the outer periphery of the second rotating member, R6 is a cross-sectional dimension of the inner periphery of the first rotating member, and H1 is a height by which the first limiting portion protrudes relative to the inner periphery of the first rotating member.

[0016] In some embodiments, a first variable-diameter connecting portion is formed on the first rotating member, and a second variable-diameter connecting portion is formed on the second rotating member; cross-sectional dimensions of the first variable-diameter connecting portion and the second variable-diameter connecting portion gradually decrease in a same preset direction, and the preset direction is a direction toward the second unit or a direction toward the first unit.

[0017] In some embodiments, the aerosol generating article further comprises at least one adapter; and at least one of the adapters adapts the connecting unit and the first unit together and / or adapts the connecting unit and the second unit together.

[0018] In some embodiments, the connecting unit comprises a hollow barrel; the first unit has a first opening at an end facing the second unit; a first mating structure is disposed on an inner side of the first unit at the first opening; an outer side wall of the barrel is provided with a second mating structure that mates with the first mating structure; and / or the second unit has a second opening at an end facing the first unit, and a third mating structure is disposed on an inner side of the second unit at the second opening; the outer side wall of the barrel is provided with a fourth mating structure that mates with the third mating structure.

[0019] In some embodiments, the first mating structure comprises a first internal thread structure, and the second mating structure comprises a first external thread structure that mates with the first internal thread structure; or the first mating structure comprises a first snap-fitting structure, and the second mating structure comprises a second snap-fitting structure that mates with the first snap-fitting structure.

[0020] In some embodiments, the third fitting structure comprises a second internal thread structure, and the fourth fitting structure comprises a second external thread structure matched with the second internal thread structure; or, the third fitting structure comprises a third clamping structure, and the fourth fitting structure comprises a fourth clamping structure matched with the third clamping structure.

[0021] In some embodiments, the first unit is integrally formed with the connecting unit; or, the second unit is integrally formed with the connecting unit.

[0022] The application also provides an aerosol generating device used in cooperation with the aerosol generating article, comprising a driving unit in transmission connection with the connecting unit to drive the connecting unit to rotate, so as to drive one of the first unit and the second unit to rotate coaxially relative to the other.

[0023] The application also provides an aerosol generating system comprising the aerosol generating device and any one of the aerosol generating articles described above, wherein the aerosol generating device has a heating cavity; a heating area is formed in the heating cavity; and the second unit of the aerosol generating article is at least partially installed in the heating cavity, and the second unit can switch its relative position with the heating area by rotation.

[0024] The application has at least the following beneficial effects: when the aerosol generating article is connected to the aerosol generating device, the second unit is at least partially installed in the heating cavity, the second unit can switch its relative position with the heating area by rotation, the second unit can generate aerosol for the user to smoke when heated, and rotation can improve the uniformity of heating and facilitate the realization of puffing and stopping. When the second unit rotates, the first unit can be stationary, so that the user's habit is not changed when the relative position of the second unit and the heating area is switched, thereby avoiding discomfort for the user and improving the user experience. BRIEF DESCRIPTION OF DRAWINGS

[0025] The application will be further described below with reference to the drawings and embodiments, wherein:

[0026] FIG. 1 is a perspective structural schematic view of an aerosol generating article according to a first embodiment of the application;

[0027] FIG. 2 is a longitudinal sectional view of the aerosol generating article shown in FIG. 1;

[0028] FIG. 3 is an exploded structural schematic view of the aerosol generating article shown in FIG. 2;

[0029] FIG. 4 is an exploded structural schematic view of a connecting unit of the aerosol generating article shown in FIG. 3;

[0030] FIG. 5 is a perspective structural schematic view of an aerosol generating article according to a second embodiment of the application;

[0031] Figure 6 is a longitudinal sectional view of the aerosol generating article shown in Figure 5;

[0032] Figure 7 is an exploded structural schematic view of the aerosol generating article shown in Figure 6;

[0033] Figure 8 is an exploded structural perspective schematic view of a connection unit of the aerosol generating article shown in Figure 7;

[0034] Figure 9 is an exploded structural longitudinal sectional schematic view of the connection unit of the aerosol generating article shown in Figure 7;

[0035] Figure 10 is an exploded structural schematic view of a connection unit of an aerosol generating article of a third embodiment of the present application;

[0036] Figure 11 is a structural schematic view of an aerosol generating article of a fourth embodiment of the present application;

[0037] Figure 12 is a longitudinal sectional view of the aerosol generating article shown in Figure 11;

[0038] Figure 13 is an exploded structural schematic view of the aerosol generating article shown in Figure 12;

[0039] Figure 14 is an exploded structural schematic view of a connection unit of the aerosol generating article shown in Figure 13;

[0040] Figure 15 is a structural schematic view of an aerosol generating device according to an embodiment of the present application;

[0041] Figure 16 is a structural schematic view of an aerosol generating system according to an embodiment of the present application;

[0042] Figure 17 is a longitudinal sectional schematic view of an aerosol generating article of a fifth embodiment of the present application;

[0043] Figure 18 is an exploded structural schematic view of the aerosol generating article shown in Figure 17;

[0044] Figure 19 is a structural schematic view of a first unit of the aerosol generating article shown in Figure 17;

[0045] Figure 20 is a structural schematic view of a second unit of the aerosol generating article shown in Figure 17;

[0046] Figure 21 is a longitudinal sectional schematic view of an aerosol generating article of a sixth embodiment of the present application;

[0047] Figure 22 is an exploded structural schematic view of the aerosol generating article shown in Figure 21;

[0048] Figure 23 is a longitudinal sectional schematic view of an aerosol generating article of a seventh embodiment of the present application;

[0049] Figure 24 is a structural schematic view of a first unit of the aerosol generating article shown in Figure 23;

[0050] Figure 25 is a structural schematic view of a second unit of the aerosol generating article shown in Figure 23. DETAILED DESCRIPTION

[0051] In order to have a clearer understanding of the technical features, objectives and effects of the present application, the specific embodiments of the present application will be described in detail with reference to the accompanying drawings.

[0052] Figures 1 to 14 show aerosol generating articles 10 of four embodiments of the present application, in which Figures 1 to 4 show an aerosol generating article 10 of a first embodiment of the present application, Figures 5 to 9 show an aerosol generating article 10 of a second embodiment of the present application, Figure 10 shows a partial structure of an aerosol generating article 10 of a third embodiment of the present application, and Figures 11 to 14 show an aerosol generating article 10 of a fourth embodiment of the present application. Figure 15 shows an aerosol generating device of an embodiment of the present application. The aerosol generating device is used in cooperation with the aerosol generating article 10 of any of the embodiments, and the aerosol generating device can heat the aerosol generating article 10 to generate aerosol for a user to smoke. Figure 16 shows an aerosol generating system of an embodiment of the present application. The aerosol generating system includes the aerosol generating article 10 and the aerosol generating device.

[0053] As shown in Figure 16, in some embodiments, the aerosol generating device includes a microwave heating assembly 71, a microwave feed-in unit (not shown) and a microwave generating unit 72. The microwave heating assembly 71 includes an outer conductor unit, an inner conductor unit, etc. The inner conductor unit includes a microwave radiation structure penetrating into the outer conductor unit. The aerosol generating device also has a heating cavity 70. Specifically, the heating cavity 70 can be formed in the outer conductor unit of the microwave heating assembly 71, and a heating zone can be formed in the heating cavity 70. Generally, the microwave radiation structure of the microwave heating assembly 71 can be arranged on one side of the heating cavity 70 to form the heating zone. The heating cavity 70 can be used for partially accommodating the aerosol generating article 10. The microwave feed-in unit is connected to the microwave generating unit 72 and feeds the microwaves generated by the microwave generating unit 72 into the heating cavity 70. The fed-in microwaves can continuously oscillate in the heating cavity 70, and the aerosol generating article 10 exposed to the microwave field in the heating cavity 70 is heated and atomized by the microwaves to generate aerosol for a user to smoke. Of course, in addition to the microwave heating form, the aerosol generating device can also heat the aerosol generating article 10 by other heating methods, such as resistance heating, electromagnetic induction heating, etc.

[0054] As shown in FIGS. 1 and 2, in some embodiments, the aerosol generating article 10 is generally cylindrical in shape, and can be inserted into the heating cavity 70 along the axial direction of the heating cavity 70. The aerosol generating article 10 can be at least partially rotatably arranged in the heating cavity 70. As shown in FIGS. 1 to 4, the aerosol generating article 10 of the first embodiment of the present application includes a first unit 1 and a second unit 2. The second unit 2 includes at least a solid aerosol generating substrate such as a processed plant leaf product. The second unit 2 can also include other units having specific functions. The aerosol generating substrate can be processed from plant powder, fibers, smoking materials, adhesives, etc., and exemplarily, the aerosol generating substrate can be processed into tobacco shreds by a papermaking method, a thick pulp method, a roller pressing method, a dry method, etc., and then cut and rolled into a tobacco column; or processed into a tobacco particle column by a granulation process. The second unit 2 releases aerosols with specific odors after being heated. The first unit 1 can include a filter unit and other units having specific functions. The first unit 1 can be cylindrical in shape. In some embodiments, the first unit 1 is close to the user's side for smoking, and filters the aerosols released from the second unit 2 before being inhaled by the user. The filter unit can be rolled from filter tips (acetic acid, polylactic acid, polyethylene terephthalate, cotton, etc.), cooling materials (polylactic acid, polyethylene terephthalate, silica gel, and other phase change materials), paper or other films (high molecular materials, metals, etc.).

[0055] The second unit 2 is arranged at one end of the first unit 1, and can be coaxially arranged and rotatably connected with the first unit 1, so that the second unit 2 can rotate relative to the first unit 1.

[0056] When the aerosol generating article 10 is connected to the aerosol generating device, the second unit 2 is at least partially arranged in the heating cavity 70, and the second unit 2 can switch its relative position with the heating area by rotating, so that the second unit 2 can generate aerosols for the user to inhale when heated, and the rotation can improve the uniformity of heating and facilitate the realization of puff-by-puff smoking. When the second unit 2 rotates, the first unit 1 can be stationary, so that the user's habit is not changed when the relative position of the second unit 2 and the heating area is switched, thereby avoiding discomfort for the user and improving the user experience.

[0057] In some embodiments, the first unit 1 and the second unit 2 can be rotatably arranged around their respective central axes, and the coaxial rotation of the two can switch their relative positions. In some embodiments, the first unit 1 can also drive the second unit 2 to rotate by rotating.

[0058] As shown in FIGS. 1-14, 17-25, in some embodiments, the aerosol generating article 10 further comprises a connecting unit 3. The connecting unit 3 is connected with at least one of the second unit 2 and the first unit 1, and can drive one of the second unit 2 and the first unit 1 to rotate coaxially relative to the other. That is, the connecting unit 3 can be connected with one of the second unit 2 and the first unit 1 to drive one of the second unit 2 and the first unit 1 to rotate, or the connecting unit 3 can be connected with both the second unit 2 and the first unit 1.

[0059] When the second unit 2 is the driving member, that is, the connecting unit 3 drives the second unit 2 to rotate coaxially relative to the first unit 1, the second unit 2 can change the heating area of the aerosol generating substrate by rotation, thereby improving the uniformity of heating of the aerosol generating substrate. At the same time, in the user's view, the first unit 1 close to the user's smoking side is stationary and does not affect the user experience.

[0060] In some embodiments, the first unit 1 can be rotationally connected with the connecting unit 3, and the second unit 2 can be rotationally connected with the connecting unit 3. Of course, it can be understood that in other embodiments, one of the first unit 1 or the second unit 2 can be connected with the connecting unit 3. For example, the first unit 1 is fixedly connected with the connecting unit 3, and the second unit 2 is rotationally connected with the connecting unit 3; or the second unit 2 is fixedly connected with the connecting unit 3, and the first unit 1 is rotationally connected with the connecting unit 3. Generally, in some embodiments, the first unit 1 and the connecting unit 3 are integrally formed, so that the first unit 1 and the connecting unit 3 are fixedly connected; or the second unit 2 and the connecting unit 3 are integrally formed, so that the second unit 2 and the connecting unit 3 are fixedly connected.

[0061] In some embodiments, the first unit 1 and / or the second unit 2 are both sleeved on the connecting unit 3. Specifically, the first unit 1 and the second unit 2 are both sleeved on the connecting unit 3. In other embodiments, only the first unit 1 can be sleeved on the connecting unit 3, and the connecting unit 3 is fixedly arranged at one end of the second unit 2 facing the first unit 1; or only the second unit 2 can be sleeved on the connecting unit 3, and the connecting unit 3 is fixedly arranged at one end of the first unit 1 facing the second unit 2. In this embodiment, the first unit 1, the second unit 2, and the connecting unit 3 can be coaxially arranged and coaxially rotated. In some embodiments, the driving mechanism (not shown) can be connected with the connecting unit 3, rather than being limited to being connected with the second unit 2, and the driving mechanism can drive the connecting unit 3 to rotate, thereby driving the second unit 2 or the first unit 1 to rotate.

[0062] In some other embodiments, the connecting unit 3 can also be sleeved on the first unit 1 and / or the second unit 2. Specifically, the connecting unit 3 can be arranged on the outer periphery of the first unit 1 and the second unit 2, and be sleeved on both the first unit 1 and the second unit 2. In some other embodiments, the connecting unit 3 can be sleeved only on the first unit 1, and be fixedly arranged at the end of the second unit 2 facing the first unit 1 or partially inserted into the second unit 2; or in some other embodiments, the connecting unit 3 can be sleeved only on the second unit 2, and be fixedly arranged at the end of the first unit 1 facing the second unit 2 or partially inserted into the first unit 1.

[0063] As shown in FIGS. 2-14, in some embodiments, the connecting unit 3 comprises a first rotating member 31 and a second rotating member 32 arranged in an inner-outer nested manner. The first rotating member 31 is connected with the first unit 1, and the second rotating member 32 is connected with the second unit 2. Specifically, the aerosol generating article 10 is generally in the shape of a long column, such as a cylindrical column, a square column or a column of other shapes. The aerosol generating article 10 has a central axis y. The first unit 1, the connecting unit 3 and the second unit 2 are arranged in sequence along the central axis y.

[0064] The first rotating member 31 can be nested on the outer periphery of the second rotating member 32, or the second rotating member 32 can be nested on the outer periphery of the first rotating member 31. The inner-outer nested arrangement enables one of the first rotating member 31 and the second rotating member 32 to rotate coaxially relative to the other, thereby driving one of the first unit 1 and the second unit 2 to rotate coaxially relative to the other. That is, the relative position between the first rotating member 31 and the first unit 1 does not change, and the relative position between the second rotating member 32 and the second unit 2 does not change. By changing the circumferential relative position of the first rotating member 31 and the second rotating member 32, one of the first unit 1 and the second unit 2 can rotate coaxially relative to the other. One of the first unit 1 and the second unit 2 acts as a driving member to rotate, and the other is stationary. For example, the second unit 2 can act as a driving member to rotate relative to the first unit 1, and the first unit 1 is stationary. Alternatively, the first unit 1 can act as a driving member to rotate relative to the second unit 2, and the second unit 2 is stationary.

[0065] When the second unit 2 acts as a driving member to rotate relative to the first unit 1, the second unit 2 can change the heating area by rotating, thereby improving the uniformity of heating. At the same time, in the user's view, the first unit 1 close to the user's side for smoking is stationary and does not affect the user experience.

[0066] As shown in FIGS. 1-3, 5-7, 11-13, in some embodiments, the aerosol generating article 10 further comprises at least one tipping 4. The tipping 4 can be a wrapping paper. The tipping 4 connects the connecting unit 3 and the first unit 1 together, or connects the connecting unit 3 and the second unit 2 together, or connects the connecting unit 3 and the first unit 1, the connecting unit 3 and the second unit 2 together.

[0067] As shown in FIGS. 1-3, in the first embodiment, one tipping 4 is arranged between the first rotating member 31 and the first unit 1, and between the second rotating member 32 and the second unit 2, respectively. The tipping 4 between the first rotating member 31 and the first unit 1 is a hollow structure, which is sleeved on the outer periphery of the first unit 1 and connected with the upper end surface of the first rotating member 31 at its end close to the first rotating member 31. The tipping 4 between the second rotating member 32 and the second unit 2 is a hollow structure, which is sleeved on the outer periphery of the first unit 1 and arranged at the periphery of the second rotating member 32.

[0068] As shown in FIGS. 5-7, 11-13, in the second and fourth embodiments, one tipping 4 is arranged between the second rotating member 32 and the second unit 2, and no tipping 4 can be arranged between the first rotating member 31 and the first unit 1. The first rotating member 31 can be a hollow cylindrical structure, and the first unit 1 is directly loaded and fixed in the interior of the first rotating member 31. In other embodiments, one tipping 4 can also be arranged between the first rotating member 31 and the first unit 1.

[0069] Further, as shown in FIGS. 2 and 3, in some embodiments, the connecting unit 3 further comprises a reinforcing member 33. It can be understood that for the first rotating member 31 and the second rotating member 32 arranged in an inner-outer nested manner, the maximum cross-sectional dimension of one of the two is greater than that of the other, and the two are fitted together through the size difference. The reinforcing member 33 is used to fill between the one of the first rotating member 31 and the second rotating member 32 with smaller maximum cross-sectional dimension and the tipping 4. The reinforcing member 33 is a hollow structure, and the inner periphery thereof can be connected with the outer periphery of the one of the first rotating member 31 and the second rotating member 32 with smaller maximum cross-sectional dimension through a food-grade adhesive, which plays a supporting and reinforcing role in connection, and prevents displacement and slipping between the one of the first rotating member 31 and the second rotating member 32 with smaller maximum cross-sectional dimension and the second unit 2. Specifically:

[0070] As shown in FIGS. 1-3, in the first embodiment, the first rotating member 31 is sleeved on the outer periphery of the second rotating member 32, and the maximum cross-sectional dimension of the second rotating member 32 is smaller than that of the first rotating member 31. At this time, the reinforcing member 33 is connected between the second rotating member 32 and the adapter 4, and the lower end surface of the reinforcing member 33 is connected with the second unit 2. The reinforcing member 33 can be a structure integrally formed with the first rotating member 31, or the two can be a structure detachably connected with each other.

[0071] In other embodiments, when the second rotating member 32 is sleeved on the outer periphery of the first rotating member 31, the reinforcing member 33 is connected between the first rotating member 31 and the adapter 4, which only needs to exchange the positions of the first rotating member 31 and the second rotating member 32, and will not be described here. In some other embodiments, the reinforcing member 33 can also not be provided, and the cross-sectional dimension of the second unit 2 is designed to be consistent with the smaller one of the first rotating member 31 and the second rotating member 32. The adapter 4 can be directly covered on the outer periphery of the smaller one of the first rotating member 31 and the second rotating member 32 and on the outer periphery of the second unit 2, and the adapter 4 connects the smaller one of the first rotating member 31 and the second rotating member 32 with the second unit 2.

[0072] In some embodiments, the aerosol generating article 10 further includes a limiting structure including a first limiting structure 51 and a second limiting structure 52. The first limiting structure 51 is provided on one of the first rotating member 31 and the second rotating member 32. The second limiting structure 52 is provided on the other one of the first rotating member 31 and the second rotating member 32. The first limiting structure 51 and the second limiting structure 52 are engaged with each other to limit the axial relative displacement between the first rotating member 31 and the second rotating member 32.

[0073] Further, as shown in the first embodiment of FIGS. 3 and 4 and the second embodiment of FIGS. 7-9, in some embodiments, the first limiting structure 51 includes a first limiting portion 54, and the second limiting structure 52 includes a second limiting portion 55 and a third limiting portion 56. The first limiting portion 54 is provided on one of the first rotating member 31 and the second rotating member 32, and the second limiting portion 55 and the third limiting portion 56 are provided on the other one of the first rotating member 31 and the second rotating member 32 in a spaced manner along the direction of the central axis y. The first limiting portion 54 is limited between the second limiting portion 55 and the third limiting portion 56, thereby limiting the axial relative displacement between the first rotating member 31 and the second rotating member 32. That is, the axial relative displacement between the first rotating member 31 and the second rotating member 32 can be limited by at least three limiting portions.

[0074] As shown in the first embodiment of FIG. 3 and FIG. 4, the first limiting portion 54, the second limiting portion 55 and the third limiting portion 56 are in the form of protrusions. The first limiting portion 54 is protruded on one of the first rotating member 31 and the second rotating member 32 in a direction perpendicular to the central axis y, and the second limiting portion 55 and the third limiting portion 56 are protruded on the other of the first rotating member 31 and the second rotating member 32 in a direction perpendicular to the central axis y, and the first limiting portion 54 is clamped between the second limiting portion 55 and the third limiting portion 56. Specifically, as shown in FIG. 3 and FIG. 4, the first limiting portion 54 can be protruded on the second rotating member 32 in a direction perpendicular to the central axis y, and the second limiting portion 55 and the third limiting portion 56 can be protruded on the first rotating member 31 in a direction perpendicular to the central axis y; or, in other embodiments, the first limiting portion 54 can be protruded on the first rotating member 31 in a direction perpendicular to the central axis y, and the second limiting portion 55 and the third limiting portion 56 can be protruded on the second rotating member 32 in a direction perpendicular to the central axis y. In other embodiments, the protruding direction of the first limiting portion 54, the second limiting portion 55 and the third limiting portion 56 and the central axis y of the aerosol generating article 10 can not be perpendicular to each other (i.e. forming a right angle of 90°), but can form other acute angles.

[0075] Specifically, as shown in the embodiment of FIG. 3 and FIG. 4, the third limiting portion 56 and the first rotating member 31 are two separate parts that can be separated, which facilitates the disassembly of the first rotating member 31 and the second rotating member 32. However, in other embodiments, the third limiting portion 56 and the first rotating member 31 can be integrally formed. The first rotating member 31, the second rotating member 32 and the third limiting portion 56 are all hollow structures, and the first rotating member 31 is sleeved on the outer periphery of the second rotating member 32. The second limiting portion 55 protrudes from the inner periphery of the first rotating member 31 towards the central axis y, and the first limiting portion 54 protrudes from the outer periphery of the second rotating member 32 away from the central axis y. The outer periphery of the third limiting portion 56 cooperates with the inner periphery of the first rotating member 31, and the third limiting portion 56 enters the first rotating member 31 from the upper end of the first rotating member 31 and is located above the first limiting portion 54. As shown in FIG. 3, when the first rotating member 31, the second rotating member 32 and the third limiting portion 56 are installed, with the orientation in the figure as a reference, the upper end surface of the first limiting portion 54 and the lower end surface of the third limiting portion 56 abut, and the lower end surface of the first limiting portion 54 abuts the second limiting portion 55, thereby limiting the axial relative displacement between the first rotating member 31 and the second rotating member 32 and preventing the first rotating member 31 and the second rotating member 32 from slipping axially. However, the first rotating member 31 and the second rotating member 32 can still rotate relative to each other in the circumferential direction.

[0076] Further, in order to allow the first rotating member 31 and the second rotating member 32 to rotate relative to each other smoothly in the circumferential direction, when the first rotating member 31 is sleeved on the outer periphery of the second rotating member 32, an assembly gap is formed between the inner periphery of the first rotating member 31 and the outer periphery of the second rotating member 32; when the second rotating member 32 is sleeved on the outer periphery of the first rotating member 31, an assembly gap is formed between the inner periphery of the second rotating member 32 and the outer periphery of the first rotating member 31. Specifically, as shown in the embodiment of FIG. 4, for the inner periphery of the first rotating member 31, the inner periphery cross-sectional dimension of the position where the second limiting portion 55 is located is defined as R2, and the inner periphery cross-sectional dimension of the other position except the second limiting portion 55 is defined as R1. For the outer periphery of the second rotating member 32, the outer periphery cross-sectional dimension of the position where the first limiting portion 54 is located is defined as R3, and the outer periphery cross-sectional dimension of the other position except the first limiting portion 54 is defined as R4. Among them, R1>R3, R2>R4, so that an assembly gap is formed between the other position on the inner periphery of the first rotating member 31 except the second limiting portion 55 and the position on the outer periphery of the second rotating member 32 where the first limiting portion 54 is located; an assembly gap is formed between the position on the inner periphery of the first rotating member 31 where the second limiting portion 55 is located and the other position on the outer periphery of the second rotating member 32 except the first limiting portion 54. And R1>R3>R2>R4. When the cross-sectional shape of the first rotating member 31 and the second rotating member 32 is circular, the cross-sectional dimensions R1 and R2 refer to the inner diameter, and R3 and R4 refer to the outer diameter. However, the cross-sectional shape of the first rotating member 31 and the second rotating member 32 is not limited to be circular, but can also be other shapes. In addition, the outer periphery of the third limiting portion 56 and the inner periphery of the first rotating member 31 can not leave an assembly gap. Specifically, the outer periphery cross-sectional dimension of the third limiting portion 56 is defined as R5, which is greater than or equal to R1, so that the third limiting portion 56 and the inner periphery of the first rotating member 31 are tightly fitted or interference fitted, the relative position between the third limiting portion 56 and the first rotating member 31 does not change, and the axial slipping between the second rotating member 32 and the first rotating member 31 is effectively limited.

[0077] In the first embodiment, the first rotating member 31, the second rotating member 32, and the third limiting portion 56 are all hollow structures, and the hollow positions of the first rotating member 31, the second rotating member 32, and the third limiting portion 56 can be filled with a cooling unit. The cooling unit is beneficial to the cooling of the aerosol and improves the flow rate of the aerosol. The material of the cooling unit can include at least one of silica gel, polylactic acid, or other heat phase change materials.

[0078] As shown in FIGS. 7-9, in the second embodiment, different from the first embodiment, the first limiting portion 54 threadedly extends along one of the first rotating member 31 and the second rotating member 32, the second limiting portion 55 threadedly extends along the other of the first rotating member 31 and the second rotating member 32, the third limiting portion 56 is in the form of a ring structure, and the first limiting portion 54 is snap-fitted between the second limiting portion 55 and the third limiting portion 56. Specifically, as shown in FIG. 8, in this embodiment, the first limiting portion 54 is provided on the first rotating member 31 and threadedly extends along the circumference of the first rotating member 31. The second limiting portion 55 and the third limiting portion 56 are provided on the second rotating member 32 in a spaced-apart manner, and the second limiting portion 55 threadedly extends along the circumference of the second rotating member 32. In other embodiments, the first limiting portion 54 can be provided on the second rotating member 32 and threadedly extend along the circumference of the second rotating member 32. The second limiting portion 55 and the third limiting portion 56 are provided on the first rotating member 31 in a spaced-apart manner, and the second limiting portion 55 threadedly extends along the circumference of the first rotating member 31. The first limiting portion 54 is limited between the second limiting portion 55 and the third limiting portion 56. In the second embodiment, the axial displacement between the first rotating member 31 and the second rotating member 32 is limited by limiting the first limiting portion 54 between the second limiting portion 55 and the third limiting portion 56, effectively preventing the axial slippage of the two. The thread shapes of the first limiting portion 54 and the second limiting portion 55 are adapted to each other. During installation, the second rotating member 32 can be screwed into the first rotating member 31 by using the adapted thread shapes, so that the second limiting portion 55 is placed above the first limiting portion 54, and the third limiting portion 56 is placed below the first limiting portion 54.

[0079] In the second embodiment shown in FIGS. 7 and 8, the first rotating member 31 is sleeved on the outer circumference of the second rotating member 32, the first limiting portion 54 is provided on the inner circumference of the first rotating member 31, and the second limiting portion 55 and the third limiting portion 56 are provided on the outer circumference of the second rotating member 32. The height of the second limiting portion 55 protruding relative to the second rotating member 32 is equal to the height of the third limiting portion 56 protruding relative to the second rotating member 32, and both are defined as H2.

[0080] As shown in FIG. 8 and FIG. 9, further, in order to limit the first limiting part 54 between the second limiting part 55 and the third limiting part 56, the height H2 of the second limiting part 55 and the third limiting part 56 protruding relative to the second rotating member 32 can satisfy: R6-H1<H2+R7<R6, where R7 is the outer circumferential cross-sectional dimension of the second rotating member 32, R6 is the inner circumferential cross-sectional dimension of the first rotating member 31, and H1 is the height of the first limiting part 54 protruding relative to the inner circumference of the first rotating member 31. When the cross-sectional shape of the first rotating member 31 and the second rotating member 32 is circular, the cross-sectional dimension R6 refers to the inner diameter, and R7 refers to the outer diameter. Because H2+R7<R6, the second limiting part 55 can be fitted into the interior of the first rotating member 31, and the second limiting part 55 is screwed above the first limiting part 54 through the threaded fit, and the first limiting part 54 cannot pass the second limiting part 55 through axial displacement. At the same time, because R6-H1<H2+R7, the cross-sectional dimension at the first limiting part 54 is smaller than the cross-sectional dimension at the third limiting part 56, so the first limiting part 54 cannot pass the third limiting part 56. Thus, through the dimensional limitation, the first limiting part 54 is effectively limited between the second limiting part 55 and the third limiting part 56, preventing the axial slippage phenomenon between the first rotating member 31 and the second rotating member 32, and the threaded fit also facilitates the assembly of the parts.

[0081] As shown in FIG. 10, in the third embodiment, the limiting structure includes the first limiting structure 51 provided on the second rotating member 32 and the second limiting structure 52 provided on the second rotating member 32. The first limiting structure 51 is a boss, and the second limiting structure 52 is a groove, and the first limiting structure 51 and the second limiting structure 52 are engaged with each other to limit the axial relative displacement between the first rotating member 31 and the second rotating member 32. Alternatively, in other embodiments, the first limiting structure 51 and the second limiting structure 52 can also be threaded structures. The positions of the first limiting structure 51 and the second limiting structure 52 can be exchanged, and will not be described here.

[0082] As shown in FIGS. 11-14, in the fourth embodiment, the first rotating member 31 has a first variable-diameter connecting portion 310 formed thereon, and the second rotating member 32 has a second variable-diameter connecting portion 320 formed thereon. The cross-sectional dimension of the first variable-diameter connecting portion 310 and the cross-sectional dimension of the second variable-diameter connecting portion 320 gradually decrease in the same preset direction, which in this embodiment is the direction toward the second unit 2. In other embodiments, the preset direction can also be the direction toward the first unit 1. Specifically, in this embodiment, the cross-sectional shape of the first rotating member 31 and the cross-sectional shape of the second rotating member 32 are both circular, and the diameter of the first variable-diameter connecting portion 310 and the diameter of the second variable-diameter connecting portion 320 gradually decrease in the same preset direction. In this way, by the mutual restriction of the first variable-diameter connecting portion 310 and the second variable-diameter connecting portion 320, the relative axial displacement of the first rotating member 31 and the second rotating member 32 is limited, and the phenomenon of axial slippage of the two is avoided.

[0083] Further, as shown in the embodiment of FIG. 12, the first rotating member 31 has a first end and a second end, and the first end is closer to the second rotating member 32 than the second end. The first variable-diameter connecting portion 310 is arranged at the first end of the first rotating member 31. The second rotating member 32 has a third end and a fourth end, and the third end is closer to the first rotating member 31 than the fourth end. The second variable-diameter connecting portion 320 is arranged between the third end and the fourth end, and is closer to the third end.

[0084] The material of the first rotating member 31 and the second rotating member 32 can include at least one of white cardboard, oil-proof paper, a high polymer material (such as polypropylene PP, polyethylene PE, polylactic acid PLA, etc.), a metal material (such as gold, silver, copper, aluminum, iron, gold-containing alloy, aluminum-containing alloy, copper-containing alloy, iron-containing alloy, stainless steel, etc.). The material of the third limiting portion 56 can include at least one of white cardboard, oil-proof paper, a high polymer material (such as polypropylene PP, polyethylene PE, polylactic acid PLA, silica gel, etc.), an inorganic non-metallic material (such as ceramic, glass, polyether ether ketone PEEK, quartz, etc.), a composite wave-transparent material. The material of the reinforcing member 33 can include at least one of a high polymer material (such as polypropylene PP, polyethylene PE, polylactic acid PLA, etc.), paper, an inorganic non-metallic material (such as ceramic, glass, polyether ether ketone PEEK, quartz, etc.), a composite wave-transparent material.

[0085] FIGS. 17-20 show an aerosol generating article 10 according to a fifth embodiment of the present application. FIGS. 21 and 22 show an aerosol generating article 10 according to a sixth embodiment of the present application. FIGS. 23-25 show an aerosol generating article 10 according to a seventh embodiment of the present application.

[0086] As shown in FIGS. 17-19, in the fifth embodiment, the first unit 1 can include a first outer wrapping structure 11 and a filter structure 12. The first outer wrapping structure 11 wraps the outer periphery of the filter structure 12, such that the first unit 1 as a whole is cylindrical, and generally, the first unit 1 is cylindrical. In some embodiments, the first outer wrapping structure 11 can be a wrapping paper, such as white cardboard, oil-proof paper, etc. The material of the first outer wrapping structure 11 can refer to the material of the joint 4. The filter structure 12 can be filter cotton, which can be cylindrical. In other embodiments, the first unit 1 is not limited to include the filter structure 12, and can include other structures having specific functions.

[0087] In the present embodiment, the width of the first outer wrapping structure 11 can be greater than the height of the filter structure 12, and after the first outer wrapping structure 11 wraps the outer sidewall of the filter structure 12, a first space 110 is left between one end of the filter structure 12 and the end of the first outer wrapping structure 11 facing the second unit 2. The end of the first unit 1 facing the second unit 2 has a first opening 111. The first opening 111 can be defined by the first outer wrapping structure 11. The first opening 111 can be used to assemble with the second unit 2 or the connecting unit 3. The inner side of the first unit 1 and located at the first opening 111 is provided with a first fitting structure 112, and specifically, the first fitting structure 112 can be a first internal thread structure. The first fitting structure 112 can be used to fit with the second unit 2 or the connecting unit 3. In some embodiments, the first fitting structure 112 can not be limited to the first internal thread structure. It can be a first clamping structure. In some embodiments, the first fitting structure 112 can be omitted.

[0088] As shown in FIGS. 17, 18 and 20, in the present embodiment, the second unit 2 includes a second outer wrapping structure 21 and an aerosol generating substrate 22. The second outer wrapping structure 21 can wrap the outer periphery of the aerosol generating substrate 22, such that the second unit 2 as a whole is cylindrical, and generally, the second unit 2 can be cylindrical. In the present embodiment, the second outer wrapping structure 21 can be a wrapping paper, such as white cardboard, oil-proof paper, etc. The material of the second outer wrapping structure 21 can refer to the material of the joint 4. The end of the second unit 2 facing the first unit 1 has a second opening 211. The second opening 211 can be defined by the second outer wrapping structure 21. The second opening 211 can be used to assemble with the first unit 1 or the connecting unit 3. The aerosol generating substrate 22 is left at a set distance from the second opening 211 to form a second space 210.

[0089] In the present embodiment, a third fitting structure 212 is arranged inside the second unit 2 and at the second opening 211. The third fitting structure 212 can include a second internal thread structure. In some embodiments, the third fitting structure 212 can be fitted with the first unit 1 or the connecting unit 3. In some embodiments, the third fitting structure 212 can not be limited to the second internal thread structure. In some embodiments, the third fitting structure 212 can include a second clamping structure.

[0090] In the present embodiment, the connecting unit 3 can include a hollow cylinder 34. The cylinder 34 can be cylindrical in shape, and the outer diameter of the cylinder 34 can be smaller than the inner diameter of the first unit 1 and the second unit 2. The cylinder 34 can partially enter the first space 110 of the first unit 1 from the first opening 111, and can partially enter the second space 210 of the second unit 2 from the second opening 211.

[0091] In other embodiments, when the connecting unit 3 is sleeved on the outer periphery of the first unit 1 and the second unit 2, the inner diameter of the cylinder 34 can be greater than the outer diameter of the first unit 1 and the second unit 2.

[0092] In the present embodiment, the outer side wall of the cylinder 34 is provided with a second fitting structure 35. The second fitting structure 35 can be used to fit with the first fitting structure 112, so as to connect the first unit 1 and the connecting unit 3, to realize the relative rotation of the first unit 1 and the connecting unit 3, and to limit the first unit 1 and the connecting unit 3, so as to avoid the first unit 1 from being separated from the connecting unit 3. The second fitting structure 35 is located at one end of the cylinder 34 and extends along the circumference of the cylinder 34. In the present embodiment, the second fitting structure 35 is integrally formed with the cylinder 34. In some embodiments, the second fitting structure 35 can be omitted, and the first unit 1 can be directly sleeved on the cylinder 34.

[0093] In the present embodiment, the second fitting structure 35 can include a first external thread structure. The first external thread structure can be correspondingly arranged with the first internal thread structure of the first unit 1, and the two can be matched with each other. Specifically, the first external thread structure and the first internal thread structure can be arranged in meshing. In the present embodiment, when the connecting unit 3 is driven to rotate, the first external thread structure and the first internal thread structure can make the first unit 1 relatively rotate. In other embodiments, when the first unit 1 is rotated, the first external thread structure and the first internal thread structure can make the first unit 1 and the connecting unit 3 relatively rotate.

[0094] In some other embodiments, when the first connecting structure 112 is a first clamping structure, the second connecting structure 35 can include a second clamping structure, which can be correspondingly arranged with the first clamping structure and can be matched with the first clamping structure to limit the position of the first unit 1 and the connecting unit 3 and facilitate the rotational arrangement of the first unit 1 and the connecting unit 3. The first clamping structure and the second clamping structure can both be clamping bosses, which are arranged in steps with the barrel 34. The second clamping structure can be arranged on the first clamping structure and can be clamped into the groove 37 formed on the outer wall of the barrel 34. The outer diameter R81 of the second connecting structure 35 is greater than the inner diameter R82 at the first connecting structure 112, and the inner diameter R82 at the first connecting structure 112 is greater than the inner diameter R83 of the barrel 34.

[0095] In the present embodiment, the outer wall of the barrel 34 is provided with a fourth connecting structure 36, which is correspondingly arranged with the third connecting structure 212 and can be matched with the third connecting structure 212 to connect the second unit 2 and the connecting unit 3, to realize the relative rotation of the second unit 2 and the connecting unit 3, and to limit both the second unit 2 and the connecting unit 3 to avoid the second unit 2 from being separated from the connecting unit 3. In the present embodiment, the fourth connecting structure 36 can be arranged at the other end of the barrel 34 and can be spaced apart from the second connecting structure 35, and the space therebetween forms a groove 37. In the present embodiment, the fourth connecting structure 36 can be integrally formed with the barrel 34. Of course, it can be understood that in some other embodiments, the fourth connecting structure 36 can also be omitted. The second unit 2 can be directly arranged on the fourth connecting structure 36.

[0096] In the present embodiment, the fourth connecting structure 36 includes a second external thread structure, which can be correspondingly arranged with the second internal thread structure and can be matched with the second internal thread structure. Specifically, the second internal thread structure can be arranged in mesh with the second external thread structure. In the present embodiment, when the connecting unit 3 is driven to rotate, the second external thread structure and the second internal thread structure can also make the connecting unit 3 relatively rotate with the second unit 2; or when the second unit 2 is rotated, the second external thread structure and the second internal thread structure can make the second unit 2 relatively rotate with the connecting unit 3.

[0097] In some other embodiments, when the third fitting structure 212 comprises a third clamping structure, the fourth fitting structure 36 can be a fourth clamping structure, which can be arranged correspondingly with the third clamping structure, and the two can cooperate with each other to limit the position of the second unit 2 and the connecting unit 3, and facilitate the rotational arrangement of the second unit 2 and the connecting unit 3. The fourth fitting structure 36 can be arranged in the circumferential direction of the cylinder 34. In this embodiment, both the third clamping structure and the fourth clamping structure can be clamping bosses. The clamping bosses can be arranged in abutment with the cylinder 34. The third clamping structure can be arranged on the fourth clamping structure, and at the same time, the third clamping structure can be clamped into the groove 37. The outer diameter R85 of the fourth fitting structure 36 is greater than the inner diameter R84 of the third fitting structure 212, and the inner diameter R84 of the third fitting structure 212 is greater than the inner diameter R83 of the cylinder 34.

[0098] As shown in FIGS. 21 and 22, in the sixth embodiment, the difference from the fifth embodiment is that only the second fitting structure 35 can be arranged on the cylinder 34. The connecting unit 3 can be fixedly connected with the second unit 2, specifically, the connecting unit 3 can be fixedly connected with the second unit 2 by means of adhesive or one-piece molding or other conventional methods. The connecting unit 3 and the second unit 2 can be synchronously rotated through the fixed connection, that is, either the driving of the second unit 2 or the connecting unit 3 can make the second unit 2 rotate relative to the first unit 1.

[0099] In some other embodiments, only the fourth fitting structure 36 can be arranged on the cylinder 34, and the connecting unit 3 can be fixedly connected with the first unit 1, specifically, the connecting unit 3 can be fixedly connected with the first unit 1 by means of adhesive or one-piece molding or other conventional methods. The connecting unit 3 can be non-fixedly connected with the second unit 2 through the fourth fitting structure 36, that is, the connecting unit 3 is rotatably connected with the second unit 2. The second unit 2 can be rotated relative to the first unit 1 through the cooperation of the fourth fitting structure 36 and the third fitting structure 212.

[0100] As shown in FIGS. 23 to 25, in the seventh embodiment, the difference from the fifth embodiment is that the connecting unit 3 can be omitted, or the connecting unit 3 and the second unit 2 can be integrally formed. The second unit 2 can be directly connected with the first unit 1, and the two can be arranged in relative rotation, generally, the second unit 2 can be coaxially rotated relative to the first unit 1.

[0101] In the present embodiment, the inner side of the first unit 1 can be provided with a fifth fitting structure 113, which can be provided on the inner wall of the first outer packaging structure 11. In the present embodiment, the fifth fitting structure 113 can be a fitting groove. The fitting groove can be arranged along the circumference of the first unit 1. The end of the second unit 2 facing the first unit 1 is provided with a sixth fitting structure 213, which can be inserted into the first unit 1, specifically, the sixth fitting structure 213 can be inserted into the first space 110 from the first opening 111 and can be matched with the fifth fitting structure 113. In the present embodiment, the sixth fitting structure 213 can be clamped into the fitting groove. The sixth fitting structure 213 can be a hollow columnar structure.

[0102] In the present embodiment, when the first fitting structure 112 is a clamping boss, the outer wall of the second unit 2 at the end away from the first unit 1 is provided with a clamping groove 214, which can be matched with the first fitting structure 112, and the first fitting structure 112 can be clamped into the clamping groove 214. The clamping groove 214 can be arranged along the circumference of the second unit 2.

[0103] In some embodiments, the second unit 2 can be rotated under the drive of a driving mechanism (not shown). The driving mechanism can be connected with the second unit 2, which can drive the second unit 2 to rotate.

[0104] As shown in FIG. 14, the aerosol generating device of an embodiment of the present application further comprises a driving unit 6, which is in transmission connection with the connecting unit 3. Specifically, the driving unit 6 is in transmission connection with the first rotating member 31 or the second rotating member 32 to drive one of the first rotating member 31 and the second rotating member 32 to rotate coaxially relative to the other, thereby driving one of the first unit 1 and the second unit 2 to rotate coaxially relative to the other. Specifically, the driving unit 6 can comprise a motor 60, a first gear 61 and a second gear 62. The microwave heating assembly further comprises a cylindrical fixing seat 63, in which the aerosol generating article 10 is accommodated, the fixing seat 63 is installed in the cavity, the second gear 62 is sleeved on the outer periphery of the fixing seat 63, the first gear 61 is in meshing connection with the second gear 62, and the motor 60 is in transmission connection with the first gear 61. The torque output by the motor 60 is transmitted to the first gear 61, the second gear 62 and the fixing seat 63 in sequence, thereby driving the fixing seat 63 to rotate around the central axis y, and driving the aerosol generating article 10 to rotate around the central axis y. In use, one end of the aerosol generating article 10 close to the second unit 2 is loaded into the fixing seat 63, and the other end of the aerosol generating article 10 close to the first unit 1 is exposed outside for a user to smoke. The fixing seat 63 is sleeved on the periphery of the second rotating member 32, specifically, the fixing seat 63 is sleeved on the adapter 4 on the periphery of the second rotating member 32, thereby driving the second rotating member 32 to rotate around the central axis y, and the second unit 2 can also rotate around the central axis y. After the heating structure heats one side of the second unit 2 for a period of time, the second unit 2 rotates around the central axis y by a certain angle, so that the aerosol generating substrate heating area can be heated, and the uniformity of heating is better.

[0105] It can be understood that the above embodiments only express the preferred embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the patent of the present application; it should be pointed out that for ordinary skilled in the art, the above technical features can be freely combined without departing from the concept of the present application, and some modifications and improvements can be made, which all belong to the protection scope of the present application; therefore, any equivalent transformation and modification within the scope of the claims of the present application shall belong to the scope of the claims of the present application.

Claims

1. An aerosol-generating article (10) comprising, The aerosol generating article (10) comprises a first unit (1) and a second unit (2); the second unit (2) is arranged at one end of the first unit (1) and comprises an aerosol generating substrate (22); the second unit (2) is coaxially arranged with the first unit (1) and is rotationally connected, so that the second unit (2) rotates relative to the first unit (1).

2. An aerosol-generating article (10) according to claim 1, characterised in that, Further comprising a connecting unit (3); the connecting unit (3) is connected with at least one of the second unit (2) and the first unit (1) and can drive one of the second unit (2) and the first unit (1) to rotate coaxially relative to the other.

3. An aerosol-generating article (10) according to claim 2, wherein, The first unit (1) is rotationally connected with the connecting unit (3); And / or the second unit (2) is rotationally connected with the connecting unit (3).

4. An aerosol-generating article (10) according to claim 2, characterised in that, The first unit (1) is fixedly connected with the connecting unit (3), and the second unit (2) is rotationally connected with the connecting unit (3); Or, the second unit (2) is fixedly connected with the connecting unit (3), and the first unit (1) is rotationally connected with the connecting unit (3).

5. An aerosol-generating article (10) according to claim 2, wherein The first unit (1) and / or the second unit (2) are sleeved on the connecting unit (3); The connecting unit (3) is sleeved on the first unit (1) and / or the second unit (2).

6. An aerosol-generating article (10) according to claim 2, characterised in that, The connecting unit (3) comprises a first rotating member (31) and a second rotating member (32) arranged in an inner-outer nested manner; the first rotating member (31) is connected with the first unit (1), and the second rotating member (32) is connected with the second unit (2); one of the first rotating member (31) and the second rotating member (32) can rotate coaxially relative to the other, thereby driving one of the first unit (1) and the second unit (2) to rotate coaxially relative to the other.

7. An aerosol-generating article (10) according to claim 6, wherein, The aerosol generating article (10) further comprises a limiting structure, which comprises a first limiting structure (51) arranged on one of the first rotating member (31) and the second rotating member (32), and a second limiting structure (52) arranged on the other of the first rotating member (31) and the second rotating member (32); the first limiting structure (51) and the second limiting structure (52) are clamped and matched with each other, for limiting the axial relative displacement between the first rotating member (31) and the second rotating member (32).

8. An aerosol-generating article (10) according to claim 7, characterised in that, The first limiting structure (51) comprises a first limiting portion (54), and the second limiting structure (52) comprises a second limiting portion (55) and a third limiting portion (56); The first limiting portion (54) is arranged on one of the first rotating member (31) and the second rotating member (32), and the second limiting portion (55) and the third limiting portion (56) are arranged on the other of the first rotating member (31) and the second rotating member (32) in a spaced manner; the first limiting portion (54) is limited between the second limiting portion (55) and the third limiting portion (56).

9. An aerosol-generating article (10) according to claim 8, wherein, The aerosol generating article (10) has a central axis (y), the first limiting portion (54) is protruded on one of the first rotating member (31) and the second rotating member (32) along a direction intersecting the central axis (y), the second limiting portion (55) and the third limiting portion (56) are protruded on the other of the first rotating member (31) and the second rotating member (32) along a direction intersecting the central axis (y), and the first limiting portion (54) is clamped between the second limiting portion (55) and the third limiting portion (56).

10. An aerosol-generating article (10) according to claim 8, characterised in that, The first limiting portion (54) extends in a thread-like manner along a circumference of one of the first rotating member (31) and the second rotating member (32), the second limiting portion (55) extends in a thread-like manner along a circumference of the other of the first rotating member (31) and the second rotating member (32), and the third limiting portion (56) has an annular structure, and the first limiting portion (54) is clamped between the second limiting portion (55) and the third limiting portion (56).

11. An aerosol-generating article (10) according to claim 10, wherein, The first rotating member (31) is sleeved on an outer circumference of the second rotating member (32), the first limiting portion (54) is arranged on an inner circumference of the first rotating member (31), and the second limiting portion (55) and the third limiting portion (56) are arranged on an outer circumference of the second rotating member (32). A height H2 at which the second limiting portion (55) and the third limiting portion (56) protrude relative to the second rotating member (32) satisfies R6-H1<H2+R7<R6, where R7 is an outer circumferential cross-sectional dimension of the second rotating member (32), R6 is an inner circumferential cross-sectional dimension of the first rotating member (31), and H1 is a height at which the first limiting portion (54) protrudes relative to the inner circumference of the first rotating member (31). A first variable-diameter connecting portion (310) is formed on the first rotating member (31), and a second variable-diameter connecting portion (320) is formed on the second rotating member (32).

12. An aerosol-generating article (10) according to claim 6, characterised in that, Cross-sectional dimensions of the first variable-diameter connecting portion (310) and the second variable-diameter connecting portion (320) gradually decrease in a same preset direction, and the preset direction is a direction towards the second unit (2) or a direction towards the first unit (1). The aerosol generating article (10) further comprises at least one adapter (4).

13. An aerosol-generating article (10) according to claim 2, characterised in that, At least one of the adapters (4) connects the connecting unit (3) and the first unit (1) together and / or connects the connecting unit (3) and the second unit (2) together. The connecting unit (3) comprises a hollow barrel (34).

14. An aerosol-generating article (10) according to claim 2, characterised in that, An end of the first unit (1) towards the second unit (2) has a first opening (111), a first fitting structure (112) is arranged on an inner side of the first unit (1) at the first opening (111), and an outer side wall of the barrel (34) is provided with a second fitting structure (35) fitted with the first fitting structure (112). ​ And / or, one end of the second unit (2) towards the first unit (1) has a second opening (211), and a third matching structure (212) is arranged inside the second unit (2) and at the second opening (211); an outer side wall of the barrel (34) is provided with a fourth matching structure (36) matched with the third matching structure (212).

15. An aerosol-generating article (10) according to claim 14, wherein, The first matching structure (112) comprises a first internal thread structure, and the second matching structure (35) comprises a first external thread structure matched with the first internal thread structure. Alternatively, the first matching structure (112) comprises a first clamping structure, and the second matching structure (35) comprises a second clamping structure matched with the first clamping structure.

16. An aerosol-generating article (10) according to claim 14, wherein The third matching structure (212) comprises a second internal thread structure, and the fourth matching structure (36) comprises a second external thread structure matched with the second internal thread structure. Alternatively, the third matching structure (212) comprises a third clamping structure, and the fourth matching structure (36) comprises a fourth clamping structure matched with the third clamping structure.

17. An aerosol-generating article (10) according to claim 2, characterised in that, The first unit (1) is integrally formed with the connecting unit (3). Alternatively, the second unit (2) is integrally formed with the connecting unit (3).

18. An aerosol generation device for use with an aerosol-generating article (10) according to any one of claims 2 to 17, characterized in that, A driving unit (6) is drivingly connected with the connecting unit (3) to drive the connecting unit (3) to rotate, thereby driving one of the first unit (1) and the second unit (2) to rotate coaxially relative to the other.

19. An aerosol-generating system comprising an aerosol generating device and an aerosol generating article (10) according to any one of claims 1 to 17, characterised in that, The aerosol generating device has a heating cavity (70); a heating area is formed in the heating cavity (70); The second unit (2) of the aerosol generating article (10) is at least partially installed in the heating cavity (70), and the second unit (2) can switch its relative position with the heating area by rotating.

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