CN219699046U - Heating element, aerosol-generating device, and aerosol-generating system - Google Patents

Abstract

The utility model provides a heating assembly, an aerosol generating device and an aerosol generating system. A heating assembly, comprising: a tubular body for containing at least part of an aerosol-generating article; and a heating matrix for heating the aerosol-generating article received within the tubular body; a portion of the tubular body protrudes radially towards the centre of the tubular body forming an annular clamping member configured to clamp the aerosol-generating article. The heating assembly of the present utility model is capable of holding an aerosol-generating article.

Description

Heating element, aerosol-generating device, and aerosol-generating system

Technical Field

The utility model relates to the technical field of aerosol generation, in particular to a heating assembly, an aerosol generation device and an aerosol generation system.

Background

The aerosol-generating device is capable of causing an aerosol-generating article (e.g. a smoking article) to generate an aerosol without combustion to reduce the harmful substances generated by the aerosol-generating article. The aerosol-generating device generally comprises a support having an insertion opening formed therein and a tubular body for receiving an aerosol-generating article, the aerosol-generating article being inserted into the tubular body through the insertion opening.

At one end of the aerosol-generating article is a mouthpiece, located outside the aerosol-generating device, for the user's mouth to hold the mouthpiece. However, the user tends to drag the aerosol-generating article out of the aerosol-generating device when the mouthpiece is contained, thereby creating a poor experience for the user.

Disclosure of Invention

The main object of the present utility model is to provide a heating element, an aerosol-generating device and an aerosol-generating system, which are capable of holding an aerosol-generating article.

The present utility model provides a heating assembly comprising: a tubular body for containing at least part of an aerosol-generating article; and a heating matrix for heating the aerosol-generating article received within the tubular body; a portion of the tubular body protrudes radially towards the centre of the tubular body forming an annular clamping member configured to clamp the aerosol-generating article.

Further, the clamping radius of the clamping member in the tubular body is 0.02mm to 0.08mm smaller than the clamping radius of the rest of the tubular body.

Further, the tubular body is provided with a first area and a second area, the heating matrix is arranged corresponding to the first area, and the clamping member is positioned in the second area; alternatively, the proximal end of the tubular body is open for insertion of the aerosol-generating article into the tubular body, and the ratio of the distance between the proximal end of the tubular body and the gripping member to the total length of the tubular body in the longitudinal direction of the tubular body is less than or equal to 1/3.

Further, the proximal end of the tubular body has a first opening allowing the aerosol-generating article to be inserted into the tubular body, and a distal seal disposed on the tubular body opposite the first opening.

Further, the heating assembly further comprises a first end cap having a mounting through hole formed therein, the mounting through hole configured to allow insertion of the aerosol-generating article into the tubular body, and a clamping structure extending at least partially into the mounting through hole to clamp the aerosol-generating article.

Further, the clamping radius of the clamping structure is the same as the clamping radius of the clamping member.

Further, the clamping structure is made of an elastic material or a flexible material.

Further, the clamping structure comprises a supporting body with an assembly through hole and a clamping piece connected with the inner wall surface of the assembly through hole, the clamping piece is obliquely arranged relative to the supporting body, and the clamping piece obliquely extends towards the direction of the tubular body.

Further, the tubular body has a wall thickness of 0.08mm to 1.2 mm.

Further, the tubular body is made of metal.

Further, the gripping member is formed by a local deformation of the tubular body.

Further, the heating matrix is bonded to the tubular body.

The present utility model provides a heating assembly comprising: a tubular body for containing at least part of an aerosol-generating article; at least a partial region of the tubular body is a heating zone for heating an aerosol-generating article received within the tubular body; a portion of the tubular body protrudes radially towards the centre of the tubular body forming an annular clamping member configured to clamp the aerosol-generating article.

The utility model provides an aerosol-generating device comprising the heating assembly described above, and further comprising a power supply assembly configured to provide power to the heating assembly.

The present utility model provides an aerosol-generating system comprising an aerosol-generating article and an aerosol-generating device comprising a tubular body for receiving at least part of the aerosol-generating article, and part of the tubular body protruding radially towards a centre of the tubular body to form an annular clamping member configured to clamp the aerosol-generating article and to provide a sealed connection between the aerosol-generating article and the tubular body.

By applying the technical solution of the present utility model, the clamping member is formed by protruding a part of the tubular body radially towards the center of the tubular body, and the heating assembly can clamp the aerosol-generating article with the clamping member, so that the tubular body can hold the aerosol-generating article stably in the tubular body while accommodating the aerosol-generating article.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 shows a schematic structural diagram of an embodiment of an aerosol-generating system of the present utility model;

FIG. 2 shows an E-E cross-sectional view of the aerosol-generating system of FIG. 1;

FIG. 3 shows a schematic partial structure of the aerosol-generating system of FIG. 2;

FIG. 4 shows a schematic structural view of a tubular body of the aerosol-generating system of FIG. 1;

FIG. 5 shows a F-F cross-sectional view of the tubular body of FIG. 4;

fig. 6 shows a schematic structural view of a clamping structure of the aerosol-generating system of fig. 1; and

fig. 7 shows a cross-sectional view of the clamping structure of fig. 6.

Wherein the above figures include the following reference numerals:

1. an aerosol-generating article; 11. a first opening; 12. a second opening; 20. a tubular body; 21. a clamping member; 22. heating the substrate; 31. a second end cap; 32. a first end cap; 50. a clamping structure; 51. a clamping member; 53. a housing.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

As shown in fig. 1 to 5, a first embodiment of the present utility model provides a heating assembly. The heating assembly includes a tubular body 20 and a heating matrix 22. Wherein the tubular body 20 is adapted to house at least part of the aerosol-generating article 1; the heating matrix 22 is used for heating the aerosol-generating article 1 received within the tubular body 20; a part of the tubular body 20 protrudes radially towards the centre of the tubular body 20 forming a gripping member 21, the gripping member 21 being configured to grip the aerosol-generating article 1.

The aerosol-generating article 1 refers to an article comprising an aerosol-forming substrate which is intended to be heated rather than combusted to release volatile compounds that can form an aerosol. An aerosol formed by heating an aerosol-forming substrate may contain fewer known hazardous components than an aerosol produced by combustion or pyrolysis degradation of the aerosol-forming substrate. In one example, the aerosol-forming substrate may comprise a tobacco-containing material containing volatile tobacco flavour compounds that are released from the substrate upon heating. In one example, the aerosol-forming substrate may comprise a non-tobacco material. In one example, the aerosol-forming substrate may include both tobacco-containing material and tobacco-free material. The aerosol-generating article 1 further comprises a mouthpiece which is located outside the heating assembly for the user to engage in when the aerosol-generating article 1 is combined with the heating assembly.

By forming the gripping member 21 locally of the tubular body 20, the tubular body 20 may thus hold the aerosol-generating article 1 while accommodating the aerosol-generating article 1, thereby ensuring that the aerosol-generating article 1 is not able to be withdrawn from the tubular body 20 when the user is holding the mouthpiece of the aerosol-generating article 1. The part of the tubular body forms a clamping member, namely the clamping member and the tubular body are of an integral structure, and the clamping member and the tubular body can be integrally injection molded; alternatively, the clamping member and the tubular body may be integrally cast; or, extruding a part of the tubular body to deform the part of the tubular body into a convex structure along the radial direction towards the center of the tubular body, wherein the convex structure forms a clamping member; or, one of the clamping member and the tubular body is a metal piece, and the other is a plastic piece, and the clamping member and the tubular body are formed into an integral structure through insert injection molding.

Specifically, in an example, the heating matrix 22 is bonded to the tubular body 20, for example, may be provided on an outer surface of the tubular body 20, the heating matrix 22 being configured to release heat to an interior of the tubular body 20, or the heating matrix 22 being thermally conductive through the tubular body 20 to transfer heat to the interior of the tubular body 20 to heat the aerosol-generating article 1 received inside the tubular body 20.

Alternatively, in another example, at least part of the heating matrix 22 is arranged inside the tubular body 20 and at least part of the heating matrix 22 is inserted into the aerosol-generating article 1 to heat the aerosol-generating article 1 when the aerosol-generating article 1 is received in the tubular body 20.

As shown in fig. 4 and 5, at least part of the clamping member 21 may be configured in a ring-shaped structure. In this way, the clamping member 21 may circumferentially clamp the aerosol-generating article 1 when the aerosol-generating article 1 is received in the tubular body 20. In particular, the proximal end of the tubular body 20 is open for insertion of said aerosol-generating article 1 into said tubular body 20, the proximal end of the tubular body 20 being located above the distal end of the tubular body 20, and the clamping member 21 being located above the distal end of the aerosol-generating article 1 when the aerosol-generating article 1 is suitable for generating an aerosol in a low oxygen environment. The annular structured gripping member 21 may be configured to be in sealing connection with the aerosol-generating article 1 when the aerosol-generating article 1 is received in the tubular body 20, to prevent air entering from the proximal end of the tubular body 20 from flowing to the distal end of the aerosol-generating article 1, or to prevent air from flowing from the proximal end of the tubular body 20 to the distal end of the aerosol-generating article 1.

When the aerosol-generating article 1 is adapted to generate an aerosol in a low oxygen environment, the clamping member 21 provides a sealed connection between the tubular body 20 and the aerosol-generating article 1 when the aerosol-generating article 1 is received in the tubular body 20, while the distal end of the tubular body 20 is sealed against air entering the distal end of the aerosol-generating article 1 from the distal end of the tubular body 20, such that a sealed space is formed within the tubular body 20 between the distal end of the tubular body 20 and the clamping member 21 of annular structure when the aerosol-generating article 1 is received in the tubular body 20, the sealed space being isolated from the outside air.

In an example, the tubular body 20 comprises a side wall surrounding the aerosol-generating article 1 and a bottom wall below the aerosol-generating article 1 when the aerosol-generating article 1 is received in the tubular body 20, the distal end of the tubular body 20 being sealed by the bottom wall, wherein the side wall and the bottom wall of the tubular body 20 may be integrally formed. In another example, and referring to fig. 2, the heating assembly may further include a second end cap 31, at least a partial bond of the second end cap 31 to the distal end of the tubular body 20, and where the second end cap 31 and the tubular body 20 interface with each other, a seal ring is provided that provides a sealed connection between the second end cap 31 and the tubular body 20 such that the second end cap 31 seals the distal end of the tubular body 20. Referring to fig. 2, the second end cap 31 may have a chamber therein in fluid communication with the interior of the tubular body 20, through which ambient air cannot enter the aerosol-generating article 1 when the aerosol-generating article 1 is received in the tubular body 20 and the user withdraws the aerosol-generating article 1, such that the chamber falls into the category of sealing the distal end of the tubular body 20. Referring to fig. 2, the second end cap 31 may support the distal end of the aerosol-generating article 1 when the aerosol-generating article 1 is received in the tubular body 20. Referring to fig. 2, the distal end of the tubular body 20 has a second opening 12, and a second end cap 31 is partially embedded in the second opening 12.

It should be noted that when the aerosol-generating article 1 is an aerosol-generating article 1 which is not suitable for generating an aerosol in a low oxygen environment, and when the aerosol-generating article 1 is received in the tubular body 20, in one example, the clamping member 21 may still provide a sealed connection between the tubular body 20 and the aerosol-generating article 1; in another example, there may be a passage between the gripping member 21 and the aerosol-generating article 1 allowing air to pass, for example the gripping surface of the gripping member 21 is petal-shaped or gear-shaped, etc., or for example the gripping member 21 comprises a plurality of members with a gap between adjacent two members allowing air to pass, and the plurality of members are arranged in a ring shape, i.e. the gripping member 21 is configured in a discontinuous ring shape.

As shown in fig. 5, the clamping radius a of the clamping member 21 in the tubular body 20 may be 0.02mm to 0.08mm smaller than the clamping radius B of the rest of the tubular body 20. On the one hand, the clamping radius of the clamping member 21 is smaller than the clamping radius of the rest of the tubular body 20 by 0.08mm, so that the problem of influencing the insertion and extraction of the aerosol-generating article 1 due to too small clamping radius of the clamping member 21 can be avoided; on the other hand, the clamping radius of the clamping member 21 is smaller than the clamping radius of the rest of the tubular body 20 by 0.02mm, so that the problem of influencing the clamping or sealing effect due to an excessively large clamping radius of the clamping member 21 can be avoided.

The aerosol-generating article 1 has a cooling section and a heated section, the heated section having an aerosol-forming substrate therein, the cooling section having a more stable outer diameter than the heated section due to evaporation of solvent and moisture in the aerosol-forming substrate after heating of the heated section, and the clamping member 21 may be configured to clamp the cooling section of the aerosol-generating article 1 when the aerosol-generating article 1 is received in the tubular body 20 in one example.

In an example, as shown in fig. 5, the tubular body 20 has a first region and a second region, the heating substrate 22 is disposed only corresponding to the first region, for example, the heating substrate 22 is located at the outer periphery of the first region of the tubular body 20, and the clamping member 21 is formed at the second region, so as to avoid damage of the clamping member 21 under heat released from the heating substrate 22.

In an example, as shown in fig. 4, in an embodiment of the utility model, the proximal end of the tubular body 20 has a first opening 11 allowing the aerosol-generating article 1 to be inserted into the tubular body 20, and the ratio of the distance C between the proximal end of the tubular body 20 and the clamping member 21 to the total length of the tubular body 20 in the longitudinal direction of the tubular body 20 is less than or equal to 1/3.

As shown in fig. 2, 3 and 6, in an example, the heating assembly further comprises a first end cap 32 and a clamping structure 50, the first end cap 32 having a mounting through hole formed therein, the mounting through hole being configured to allow the aerosol-generating article 1 to be inserted into the tubular body 20, at least part of the clamping structure 50 extending into the mounting through hole to clamp the aerosol-generating article 1.

The gripping structure 50 may be arranged above the tubular body 20, whereby a double gripping of the aerosol-generating article 1 by the gripping structure 50 and the gripping member 21 may be achieved, ensuring the stability of the gripping.

The clamping radius D of the clamping cavity of the clamping structure 50 may be the same as the clamping radius a of the clamping member 21, but is not limited thereto.

The gripping structure 50 may be made of a resilient material or a flexible material. For example, may be made of a silicone material.

As shown in fig. 1 and 7, in an example, the holding structure 50 includes a support body having an assembly through hole and a holding piece 51 connected to an inner wall surface of the assembly through hole, the holding piece 51 is disposed obliquely with respect to the support body, and the holding piece 51 extends obliquely toward a direction in which the tubular body 20 is located. On the one hand, insertion of the aerosol-generating article 1 into the tubular body 20 may be facilitated; on the other hand, the obliquely arranged holder 51 can prevent the aerosol-generating article 1 from being pulled out of the tubular body 20 after insertion of the aerosol-generating article 1.

In one example, the tubular body 20 has a wall thickness of 0.08mm to 1.2mm when the heating matrix 22 is bonded to the tubular body 20. By providing the heating matrix 22 with a smaller thickness, the consumption of heat released by the heating matrix 22 by the tubular body 20 is reduced, thereby achieving the goal of energy conservation.

In one example, the tubular body 20 is made of metal when the heating matrix 22 is bonded to the tubular body 20. The metal has good thermal conductivity and low heat capacity, so that the consumption of heat released by the heating matrix 22 by the tubular body 20 is reduced, thereby achieving the purpose of energy saving.

In one example, the tubular body 20 includes a metal pipe, i.e., a pipe made of metal, so that the metal pipe can be locally deformed by pressing or punching the metal pipe inward, thereby forming the clamping member 21 protruding toward the center of the tubular body 20 on the metal pipe, facilitating the processing and formation of the clamping member 21.

In one example, the heating matrix 22 comprises a resistive material that, when electrically conductive, is capable of generating joule heat. Suitable resistive materials include, but are not limited to: semiconductors such as doped ceramics, conductive ceramics (e.g., molybdenum disilicide), carbon, graphite, metals, metal alloys, and composites made of ceramic materials and metal materials. Such composite materials may include doped or undoped ceramics. Examples of suitable doped ceramics include doped silicon carbide. Examples of suitable metals include titanium, zirconium, tantalum, and platinum group metals. Examples of suitable metal alloys include stainless steel, constantan (Constantan), nickel-containing alloys, cobalt-containing alloys, chromium-containing alloys, aluminum-containing alloys, titanium-containing alloys, zirconium-containing alloys, hafnium-containing alloys, niobium-containing alloys, molybdenum-containing alloys, tantalum-containing alloys, tungsten-containing alloys, tin-containing alloys, gallium-containing alloys, manganese-containing alloys, and iron-containing alloys, as well as nickel-, iron-, cobalt-based superalloys, stainless steel, iron-aluminum-based alloys, and iron-manganese-aluminum-based alloys. In the composite material, the resistive material may be embedded in, encapsulated or coated by the insulating material, or vice versa, as desired, depending on the kinetics of energy transfer and the desired external physicochemical properties. The heating substrate 22 may be prepared as a heating coil, a heating mesh, a resistive film, a resistive coating, or the like.

In one example, the heating substrate 22 comprises a susceptor. Susceptors refer to materials that may convert electromagnetic energy into heat. Eddy currents and hysteresis induced in the susceptor when located within a varying electromagnetic field can cause heating of the susceptor. In such embodiments, the susceptor is designed to engage with an aerosol-generating device comprising a magnetic field generator. The magnetic field generator generates a varying magnetic field to heat a susceptor located within the varying magnetic field. In use, the susceptor is located within a varying magnetic field generated by the magnetic field generator. The magnetic field generator is electrically connected with the power supply component, and the power supply component provides current for generating a changed magnetic field for the magnetic field generator. The magnetic field generator may comprise one or more induction coils that generate a varying magnetic field, which may surround the susceptor. Wherein the susceptor may comprise metal or carbon. In an embodiment, the susceptor may comprise a ferromagnetic material, such as ferrite, ferromagnetic steel, or stainless steel. In one embodiment, the susceptor comprises a nickel-iron alloy. In one embodiment, the susceptor comprises a 400 series stainless steel, the 400 series stainless steel comprising a 410 grade or 420 grade or 430 grade stainless steel.

In one example, the heating substrate 22 comprises an infrared electrothermal coating that is capable of generating thermal energy when energized, thereby generating infrared light of a wavelength, such as: infrared rays of 0.75-1000 μm. In the embodiment of the present utility model, the wavelength of the infrared ray is not limited. The infrared electrothermal coating is optionally formed by uniformly stirring far infrared electrothermal ink, ceramic powder and inorganic adhesive, then coating on the outer surface of a matrix, and then drying and curing for a certain time, wherein the thickness of the infrared electrothermal coating is 30-50 mu m; of course, the infrared electrothermal coating can be coated on the outer surface of the substrate after being mixed and stirred by tin tetrachloride, tin oxide, antimony trichloride, titanium tetrachloride and anhydrous copper sulfate according to a certain proportion; or one of a silicon carbide ceramic layer, a carbon fiber composite layer, a zirconium titanium oxide ceramic layer, a zirconium titanium nitride ceramic layer, a zirconium titanium boride ceramic layer, a zirconium titanium carbide ceramic layer, an iron oxide ceramic layer, an iron nitride ceramic layer, an iron boride ceramic layer, an iron carbide ceramic layer, a rare earth oxide ceramic layer, a rare earth nitride ceramic layer, a rare earth boride ceramic layer, a rare earth carbide ceramic layer, a nickel cobalt oxide ceramic layer, a nickel cobalt nitride ceramic layer, a nickel cobalt boride ceramic layer, a nickel cobalt carbide ceramic layer, or a high silicon molecular sieve ceramic layer; the infrared electrothermal coating can also be an existing coating of other materials.

As shown in fig. 5, a second embodiment of the present utility model provides a heating assembly. The main difference between the second embodiment and the first embodiment is that the tubular body 20 comprises a susceptor, that the aerosol-generating device and the aerosol-generating system adapted to the heating assembly further comprise a magnetic field generator, that at least a partial region of the tubular body 20 may generate eddy currents and hysteresis under interaction of the magnetic field generator and the susceptor, which region forms a heating zone of the tubular body 20, and that the tubular body 20 releases heat through the heating zone to the aerosol-generating article 1 accommodated in the tubular body 20 for heating the aerosol-generating article. In one example, the clamping member 21 may be formed by deformation of the susceptor under pressure. In an example, only a partial region of the tubular body 20 may generate eddy currents and hysteresis, thereby forming a heating zone, and the remaining region where the clamping member 21 may be formed may be free of eddy currents and hysteresis or weak.

As shown in fig. 1 and 2, an embodiment of the present utility model provides an aerosol-generating device. The aerosol-generating device comprises the heating assembly of any of the examples above, further comprising a power supply assembly configured to provide power to heat the substrate or the magnetic field generator.

As shown in fig. 1, in an embodiment of the present utility model, the aerosol-generating device further comprises a housing 53 for housing the heating assembly and the power supply assembly.

The aerosol-generating device has all of the advantages of the heating assembly described above and will not be described in detail herein.

Embodiments of the present utility model provide an aerosol-generating system. The aerosol-generating system comprises an aerosol-generating article 1 and the aerosol-generating device described above.

From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects: by forming the gripping member by radially projecting a part of the tubular body towards the centre of the tubular body and by means of which the heating assembly can grip the aerosol-generating article, the tubular body can hold the aerosol-generating article stably in the tubular body while at the same time accommodating the aerosol-generating article.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (15)

1. A heating assembly, comprising:

a tubular body (20) for housing at least part of the aerosol-generating article (1); and

-a heating matrix (22) for heating an aerosol-generating article (1) received within the tubular body (20);

-the part of the tubular body (20) protrudes radially towards the centre of the tubular body (20) forming an annular clamping member (21), the clamping member (21) being configured to clamp the aerosol-generating article (1).

2. A heating assembly according to claim 1, wherein the clamping radius of the clamping member (21) in the tubular body (20) is 0.02mm to 0.08mm smaller than the clamping radius of the rest of the tubular body (20).

3. A heating assembly according to claim 1, wherein the tubular body (20) has a first zone and a second zone, the heating matrix (22) being arranged in correspondence of the first zone, the gripping member (21) being located in the second zone; or alternatively, the process may be performed,

the proximal end of the tubular body (20) is open for insertion of the aerosol-generating article (1) into the tubular body (20), and the ratio of the distance between the proximal end of the tubular body (20) and the clamping member (21) to the total length of the tubular body (20) in the longitudinal direction of the tubular body (20) is less than or equal to 1/3.

4. A heating assembly according to any one of claims 1 to 3, wherein the proximal end of the tubular body (20) has a first opening (11) allowing the aerosol-generating article (1) to be inserted into the tubular body (20), the distal end of the tubular body (20) being sealed against the first opening (11).

5. A heating assembly according to any one of claims 1 to 3, further comprising a first end cap (32) and a clamping structure (50), the first end cap (32) having a mounting through hole formed therein, the mounting through hole being configured to allow insertion of the aerosol-generating article (1) into the tubular body (20), at least part of the clamping structure (50) extending into the mounting through hole to clamp the aerosol-generating article (1).

6. A heating assembly according to claim 5, wherein the clamping radius of the clamping structure (50) is the same as the clamping radius of the clamping member (21).

7. A heating assembly according to claim 5, wherein the clamping structure (50) is made of an elastic or flexible material.

8. A heating assembly according to claim 5, wherein the holding structure (50) comprises a supporting body having an assembly through hole and a holding member (51) connected to an inner wall surface of the assembly through hole, the holding member (51) is provided obliquely with respect to the supporting body, and the holding member (51) extends obliquely toward a direction in which the tubular body (20) is located.

9. A heating assembly according to any one of claims 1 to 3, wherein the tubular body (20) has a wall thickness of 0.08mm to 1.2 mm.

10. A heating assembly according to any one of claims 1 to 3, wherein the tubular body (20) is made of metal.

11. A heating assembly according to claim 10, wherein the clamping member (21) is formed by a local deformation of the tubular body (20).

12. A heating assembly according to any one of claims 1 to 3, wherein the heating matrix (22) is bonded to the tubular body (20).

13. A heating assembly, comprising:

a tubular body (20) for housing at least part of the aerosol-generating article (1);

at least a partial region of the tubular body (20) is a heating zone for heating an aerosol-generating article (1) received within the tubular body (20);

-the part of the tubular body (20) protrudes radially towards the centre of the tubular body (20) forming an annular clamping member (21), the clamping member (21) being configured to clamp the aerosol-generating article (1).

14. An aerosol-generating device comprising the heating assembly of any of claims 1 to 13, further comprising a power supply assembly configured to provide power to the heating assembly.

15. An aerosol-generating system, comprising an aerosol-generating article (1) and an aerosol-generating device, the aerosol-generating device comprising a tubular body (20), the tubular body (20) being adapted to house at least part of the aerosol-generating article (1), and part of the tubular body (20) protruding radially towards a centre of the tubular body (20) to form an annular clamping member (21), the clamping member (21) being configured to clamp the aerosol-generating article (1) and to provide a sealed connection between the aerosol-generating article (1) and the tubular body (20).