CN221204157U - Gas mist generating device and heater for gas mist generating device - Google Patents

Abstract

The utility model discloses an aerosol-generating device and a heater for an aerosol-generating device, the aerosol-generating device comprising a chamber and a heater for heating an aerosol-generating article received in the chamber, the chamber having an opening through which the aerosol-generating article passes in use, the heater comprising a substrate, a heating element and an electrode ring, the substrate being configured to extend along the length of the heater, at least one first engagement formation being provided on an outer surface of the substrate; a heating element surrounding or bonded to at least a portion of the substrate for heating the aerosol-generating article received within the chamber; the electrode ring is in conductive connection with the heating element, the electrode ring surrounds and is bonded to the substrate, and at least one second bonding structure coupled with the first bonding structure is provided to prevent rotation of the electrode ring relative to the substrate. Therefore, the stability of the connection between the electrode ring and the matrix is improved, the risk of the rotation of the electrode ring relative to the matrix is reduced, and the stability of the aerosol generating device is improved.

Description

Gas mist generating device and heater for gas mist generating device

Technical Field

Embodiments of the present utility model relate to the field of aerosol generation, and more particularly, to an aerosol generation device and a heater for the aerosol generation device.

Background

Smoking articles (e.g., cigarettes, cigars, etc.) burn tobacco during use to produce tobacco smoke. Attempts have been made to replace these tobacco-burning products by making products that release the compounds without burning.

An example of such a product is a heating device that releases a compound by heating rather than burning a material. For example, the material may be an aerosol-generating article comprising tobacco or other non-tobacco products, which may or may not comprise nicotine. Known heating devices, in order to heat an aerosol-generating article to a temperature capable of releasing volatile components that may form an aerosol, heat is typically applied around the aerosol-generating article by a tubular resistive heater to produce the aerosol; tubular resistive heaters typically include a tubular thermally conductive substrate, an electrode ring, and a spiral heater wire surrounding the tubular thermally conductive substrate; the heat conducting substrate is used for receiving heat of the spiral heating wire to heat the aerosol generating product, and the electrode ring is connected to the heat conducting substrate and used for preventing the spiral heating wire from being separated from the heat conducting substrate.

The inventors of the present utility model found that, in carrying out the present utility model: at present, in some shaking scenes, the electrode ring arranged on the heat conducting substrate is not firmly connected with the heat conducting substrate, and relative rotation phenomenon can occur, so that inconvenience is brought.

Disclosure of utility model

In order to solve the above technical problems, embodiments of the present utility model provide a convenient-to-use aerosol-generating device and a heater for the aerosol-generating device.

The technical scheme adopted by the embodiment of the utility model for solving the technical problems is as follows:

An aerosol-generating device configured to heat an aerosol-generating article to generate an aerosol; comprising a chamber having an opening through which, in use, the aerosol-generating article can pass, and a heater; a heater for heating an aerosol-generating article received within the chamber, comprising a substrate, a heating element and an electrode ring, the substrate being configured to extend along a length of the heater and at least partially surround or define the chamber; at least one first joint structure is arranged on the outer surface of the matrix; a heating element surrounding or bonded to at least a portion of the substrate for heating the aerosol-generating article received within the chamber; an electrode ring is in conductive connection with the heating element for at least partially directing an electrical current over the heating element; the electrode ring surrounds and is combined with the matrix, and at least one second joint structure is arranged on the electrode ring; the second engagement structure is coupled with the first engagement structure to prevent rotation of the electrode ring relative to the base.

Optionally, a plurality of first bonding structures are disposed on the outer surface of the substrate, and the plurality of first bonding structures are disposed at equal intervals around the outer surface of the substrate;

And/or a plurality of second joint structures are arranged on the electrode ring, and the second joint structures are arranged at equal intervals along the circumferential direction of the electrode ring.

Optionally, the first engagement structure includes a protrusion disposed on an outer surface of the base body, and the second engagement structure includes a recess or notch disposed on the electrode ring.

Optionally, the substrate includes a first end and a second end disposed opposite each other, the first end being adjacent to the opening relative to the second end, the electrode ring being disposed adjacent to the second end.

Optionally, the substrate is a conductor, and further comprises a first conductive lead and a second conductive lead for supplying power to the heating element, wherein the first conductive lead and one end of the heating element are electrically connected to an electrode ring so as to form conductive connection; the other end of the heating element and the second conductive lead are electrically connected to the electrode ring to form a conductive connection.

Optionally, one end of the heating element is conductively coupled to the substrate proximate a first end of the substrate, and the first conductive lead is conductively coupled to the substrate proximate a second end of the substrate.

Optionally, the electrode ring is provided with a avoiding window or a notch at the second end of the substrate to expose a portion of the substrate, and the first conductive lead is connected to a portion of the substrate exposed to the avoiding window or the notch of the electrode ring.

Optionally, the first conductive lead is connected to a first bonding structure on the outer surface of the substrate.

Optionally, the heating element is configured as a heating coil disposed around the base body, and a section of the wire material of the heating coil is configured to extend in an axial direction of the instant heating coil for a length greater than a length extending in a radial direction.

The technical problems of the embodiment of the utility model are solved by adopting the following technical scheme:

A heater for an aerosol-generating device comprising a substrate, a heating element and an electrode ring, the substrate being configured as a tubular body extending along a length of the heater, the substrate having at least one first engagement formation provided on an outer surface thereof; a heating element surrounding or bonded to at least a portion of the substrate for heating the aerosol-generating article; the electrode ring is in conductive connection with the heating element for at least partially directing an electrical current over the heating element; the electrode ring surrounds and is combined with the base body, and at least one second joint structure is arranged on the electrode ring and is coupled with the first joint structure so as to prevent the electrode ring from rotating relative to the base body.

The embodiment of the utility model has the beneficial effects that: the aerosol-generating device provided by the embodiment of the utility model comprises a cavity and a heater, wherein the cavity is provided with an opening for passing aerosol-generating products; a heater for heating an aerosol-generating article received within the chamber, the heater comprising a substrate, a heating element and an electrode ring, the substrate being configured to extend along a length of the heater and at least partially surround or define the chamber; at least one first joint structure is arranged on the outer surface of the base body; a heating element surrounding or bonded to at least a portion of the substrate for heating the aerosol-generating article received within the chamber; the electrode ring is in conductive connection with the heating element for at least partially directing an electrical current over the heating element; the electrode ring surrounds and is combined with the matrix, and at least one second joint structure is arranged on the electrode ring; the second engagement structure is coupled with the first engagement structure to prevent rotation of the electrode ring relative to the base. Therefore, the stability of the connection between the electrode ring and the matrix is improved, and the risk of the rotation of the electrode ring relative to the matrix is reduced.

Drawings

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures of the drawings are not to be taken in a limiting sense, unless otherwise indicated.

FIG. 1 is a schematic view of an aerosol-generating device according to one embodiment of the present application;

FIG. 2 is a cross-sectional view of the heater of FIG. 1;

FIG. 3 is a cross-sectional view of the heating element of FIG. 2;

FIG. 4 is a schematic view of a heater according to one embodiment of the present application;

FIG. 5 is an exploded view of the structure of FIG. 4;

FIG. 6 is a schematic view showing the structure of a heater according to another embodiment of the present application;

FIG. 7 is an exploded view of the structure of FIG. 6;

In the figure: 1000. an aerosol-generating article; 100. an aerosol generating device; 110. a proximal end; 111. an opening; 120. a distal end; 121. an air inlet hole; 130. a chamber; 140. a battery cell; 150. a circuit board; 160. an air passage; 10. a housing; 20. a heater; 21. a base; 22. a heating element; 23. an electrode ring; 24. a first conductive lead; 25. a second conductive lead; 21a, a first end; 21b, a second end; 211. a first engagement structure; 231. a second engagement structure; 2111. a protrusion; 2311. and (5) a notch.

Detailed Description

In order that the utility model may be readily understood, a more particular description thereof will be rendered by reference to specific embodiments that are illustrated in the appended drawings. It will be understood that when an element is referred to as being "fixed" to another element, it can be directly on the other element or one or more intervening elements may be present therebetween. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or one or more intervening elements may be present therebetween. The terms "upper," "lower," "inner," "outer," "vertical," "horizontal," and the like as used in this specification, refer to an orientation or positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not denote or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used in this specification includes any and all combinations of one or more of the associated listed items.

In addition, the technical features mentioned in the different embodiments of the utility model described below can be combined with one another as long as they do not conflict with one another.

One embodiment of the present application contemplates an aerosol-generating device 100, such as that shown in fig. 1, for heating, rather than burning, an aerosol-generating article 1000, such as a cigarette, to volatilize or release at least one component of the aerosol-generating article 1000 to form an aerosol for inhalation.

In some embodiments, the aerosol-generating article 1000 preferably employs tobacco-containing materials that release volatile compounds from a matrix upon heating; or may be a non-tobacco material capable of being heated and thereafter adapted for electrical heating for smoking. The aerosol-generating article 1000 preferably employs a solid matrix, which may comprise one or more of powders, granules, shredded strips, ribbons or flakes of one or more of vanilla leaves, tobacco leaves, homogenized tobacco, expanded tobacco; or the solid substrate may contain additional volatile flavour compounds, whether tobacco or not, to be released when the substrate is heated.

And as shown in fig. 1, after the aerosol-generating article 1000 is received in the aerosol-generating device 100, it may be advantageous for a user to draw on, for example, a filter, which is partially exposed to the outside of the aerosol-generating device 100.

The configuration of the aerosol-generating device according to an embodiment of the present application may be seen in fig. 1, the overall device shape being generally configured in a flat cylindrical shape, the external components of the aerosol-generating device 100 comprising:

A housing 10 having a hollow structure inside and forming an assembly space for necessary functional components such as an electronic device and a heating device; the housing 10 has longitudinally opposed proximal 110 and distal 120 ends; wherein the proximal end 110 is provided with an opening 111 through which opening 111 the aerosol-generating article 1000 may be received within the housing 10 to be heated or removed from the housing 10; the distal end 120 is provided with an air inlet hole 121; the air intake holes 121 serve to allow outside air to enter into the case 10 during the suction.

Further according to fig. 1, the aerosol-generating device 100 further comprises a chamber 130 for receiving or housing the aerosol-generating article 1000, the chamber 130 being provided with an opening 111; in use, the aerosol-generating article 1000 may be removably received within the chamber 130 through the opening 111.

In some embodiments, the aerosol-generating device 100 further comprises an air passage 160, the air passage 160 being located between the chamber 130 and the air inlet aperture 121. In use the air channel 160 provides a channel path from the air inlet aperture 121 into the chamber 130/aerosol-generating article 1000, as indicated by arrow R11 in fig. 1.

In some embodiments, the aerosol-generating device 100 further comprises a battery cell 140 for supplying power; preferably, the battery cell 140 is a rechargeable battery cell 140 and can be charged by connection to an external power source.

In some embodiments, the aerosol-generating device 100 further comprises a circuit board 150, the circuit board 150 being connected to the electrical core 140.

In some embodiments, the aerosol-generating device 100 further comprises a heater 20 at least partially surrounding and defining the chamber 130, the heater 20 at least partially surrounding or enclosing the aerosol-generating article 1000 when the aerosol-generating article 1000 is received within the housing 10 and heating from the periphery of the aerosol-generating article 1000. And is at least partially contained and retained within the heater 20 when the aerosol-generating article 1000 is received within the housing 10.

In some embodiments, as shown in fig. 2, the heater 20 is configured to be of a substantially longitudinal tubular shape, and includes a tubular base 21, where the base 21 is made of a metal material, and may include copper, aluminum, steel, iron-chromium-aluminum, or the like, and an insulating layer is disposed on the surface of the base 21, and may be an autoxidized insulating layer formed by the material of the base 21 itself, or may be an insulating layer formed by spraying a nano ceramic coating, aluminum oxide, tungsten carbide, or the like on the surface, or by applying an insulating material such as glass glaze. In use, the aerosol-generating article 1000 is at least partially defined by the substrate 21 for receiving and retaining.

In some embodiments, the substrate 21 has a wall thickness of 0.03mm to 1 mm. In some embodiments, the substrate 21 has an inner diameter of about 5.0mm to 8.0mm, and the substrate 21 has a length of about 30 mm to 60 mm.

In some embodiments, the heater 20 further comprises a heating element 22 surrounding or engaged with at least a portion of the substrate 21 for heating the aerosol-generating article received within the chamber 130. It will be appreciated that the heating element 22 is supplied with direct current from the electrical core 140 and thereby joule heating, and that the substrate 21 in turn heats the aerosol-generating article 1000 by receiving heat from the heating element 22.

In some embodiments, the heating element 22 is configured as a heating coil that spirals around the substrate 21. The heating element 22 is made of a metal material, a metal alloy, graphite, carbon, conductive ceramic or other ceramic material and metal material composite material with appropriate resistance. Suitable metals or alloy materials include at least one of nickel, cobalt, zirconium, titanium, 316L or 310 stainless steel, nickel alloy, cobalt alloy, zirconium alloy, titanium alloy, nichrome, nickel-iron alloy, ferrochrome aluminum alloy, ferromanganese aluminum alloy, stainless steel, or the like.

In some embodiments, the heating coil has a length of about 30-60 mm. In some embodiments, the number of turns of the heating coil may be set as desired, for example, 6 to 20 turns. In some embodiments, the resistance of the heating element 22 is controlled to be between 0.4Ω and 2.5Ω, and preferably, the resistance of the heating element 22 is controlled to be between 0.4Ω and 1.5Ω.

In some embodiments, the heating element 22 is a conventional wire wrap of circular cross-section. Or in yet other variations, such as shown in fig. 3, the cross-sectional shape of the wire material of the heating element 22 is a wide or flat shape other than a conventional circular shape. In the preferred embodiment shown in fig. 3, the cross section of the wire material of the heating coil is configured to extend in the axial direction of the heating coil for a length greater than the length extending in the radial direction, so that the cross section of the wire material of the heating element 22 is flat rectangular in shape, as compared to the conventional spiral shape formed by a circular cross section wire of the heating element 22, which can promote the contact area with the base 21 to increase the heat conduction, which is advantageous in promoting the transfer of heat generated by the heating element 22 in the radial direction toward the base 21, reducing the energy loss of the heating element 22.

It should be understood that, here, the axial direction and the radial direction of the heating coil refer to the axial direction and the radial direction of the heating coil after the heating coil is in a spiral state, and since the heating coil is wound on the base 21, the axial direction of the heating coil may be regarded as the axial direction of the base 21, and the radial direction of the heating coil may be regarded as the radial direction of the base 21.

In some implementations, the heating coil is uniformly wound outside the substrate 21. And the spacing between adjacent windings or turns of the heating coil is constant or uniform in the axial direction. Or in yet other variations, the spacing between adjacent windings or turns of the heating coil is varied in the axial direction. And, in a more preferred embodiment, the number of turns or windings per unit length of the middle portion of the heating coil is smaller than the number of turns or windings per unit length of at least one of the two end portions. I.e. the windings of the middle part of the heating coil are relatively more sparse and the windings of at least one of the two end parts are relatively more encrypted. And, the spacing between adjacent windings or turns of the heating coil is non-constant in the axial direction.

In some embodiments, to facilitate modular mass production of the heater 20, and connection to the circuit board 150, as shown in fig. 2, the heater 20 further includes an electrode ring 23, the electrode ring 23 being conductively coupled to the heating element 22 for at least partially directing current across the heating element 22, the electrode ring 23 surrounding and bonded to the substrate 21, the electrode ring 23 also acting to limit movement of the heating element 22 in addition to enabling electrical connection of the heating element 22, reducing the risk of the heating element 22 becoming detached from the substrate 21.

In some embodiments, the electrode ring 23 may be made of conventional low resistivity conductive materials such as gold, silver, copper or alloys containing them, which may be advantageous for use as an electrode, but may also be made of conductive materials such as stainless steel or aluminum. Further, the thickness of the electrode ring 23 may be set as required, and in the present embodiment, the thickness of the electrode ring 23 is 0.05mm to 0.15mm.

In some embodiments, as shown in fig. 4-5, the substrate 21 includes oppositely disposed first and second ends 21a, 21b, the first end 21a being proximate to the opening 111 relative to the second end 21b, and the electrode ring 23 being disposed proximate to the second end 21b, the electrode ring 23 being in electrically conductive communication with the heating element 22.

It will be appreciated that the electrode ring 23 and the base 21 may be directly welded or connected by clamping, or may be connected by other means, and may be specifically set as required.

In some embodiments, as shown in fig. 4-7, at least one first engagement structure 211 is provided on an outer surface of the base 21 and at least one second engagement structure 231 is provided on the electrode ring 23, the second engagement structure 231 being coupled to the first engagement structure 211 to prevent rotation of the electrode ring 23 relative to the base 21.

In some embodiments, the outer surface of the base 21 is provided with a plurality of first engagement structures 211, the plurality of first engagement structures 211 being equally spaced around the outer surface of the base 21, and/or the electrode ring 23 is provided with a plurality of second engagement structures 231, the plurality of second engagement structures 231 being equally spaced along the circumference of the electrode ring 23. In this embodiment, a first bonding structure 211 may be coupled to a second bonding structure 231, and the number of the first bonding structures 211 and the second bonding structures 231 is four.

In some embodiments, the first engagement structure 211 includes a protrusion 2111 disposed on an outer surface of the base 21, and the second engagement structure 231 includes a notch 2311 disposed on the electrode ring 23, where the protrusion 2111 is coupled to the notch 2311, so as to prevent the electrode ring 23 from rotating relative to the base 21, thereby reducing a risk of misalignment or even falling off between the electrode ring 23 and the base 21 due to collision of the heating element 22 during use, and facilitating improvement of stability of the heating element 22.

It should be appreciated that protrusions 2111 on base 21 couple with indentations 2311 on electrode ring 23, either by a transition fit or by other means, as may be specifically desired. In this embodiment, the protrusions 2111 of the base 21 are mounted with the notches 2311 of the electrode ring 23 by means of a transition fit, and the mounting is achieved by aligning the notches 2311 of the electrode ring 23 with the protrusions 2111 of the base 21 and pushing the electrode ring 23 toward the second end 21b of the base 21.

In some embodiments, the shape of the protrusion 2111 matches the shape of the notch 2311, e.g., the shape of the protrusion 2111 is rectangular, and the shape of the notch 2311 is also rectangular; for another example, protrusion 2111 has a C-shape and notch 2311 has a C-shape. In some embodiments, the protrusions 2111 may be regular in shape, such as rectangular, arcuate, etc., or irregular in shape, such as saw tooth, etc., as may be desired.

In some embodiments, the first engagement structure 211 includes protrusions 2111 disposed on an outer surface of the base 21, and the second engagement structure 231 includes recesses (not shown) disposed on the electrode ring 23, the recesses being formed by protruding from a surface portion of the electrode ring 23 in a direction away from the radial direction, the protrusions 2111 being coupled to the recesses, such that the electrode ring 23 is prevented from rotating relative to the base 21, and the risk of misalignment or even detachment between the electrode ring 23 and the base 21 due to collision of the heating element 22 during use is reduced, which is advantageous for improving stability of the heating element 22.

In some embodiments, the heater 20 further comprises a first conductive lead 24 for powering the heating element 22 and a second conductive lead 25, both the first conductive lead 24 and one end of the heating element 22 being electrically connected to the substrate 21 to form a conductive connection, both the second conductive lead 25 and the other end of the heating element 22 being electrically connected to the electrode ring 23 to form a conductive connection. As such, an electrical current may make the substrate 21, the heating element 22, and the electrode ring 23 electrically conductive through the first or second electrically conductive leads 24, 25, thereby generating joule heating, enabling the heating element 22 to conduct heat to the substrate 21 to heat the aerosol-generating article 1000.

It will be appreciated that the substrate 21 is exposed for electrically conductive connection to the first electrically conductive lead 24 and the heating element 22, i.e. the electrically conductive connection is not provided with an insulating layer, in order to facilitate electrically conductive connection.

In some embodiments, one end of the heating element 22 is conductively coupled to the substrate 21 proximate the first end 21a of the substrate 21 and the first conductive lead 24 is conductively coupled to the substrate 21 proximate the second end 21b of the substrate 21.

The conductive connection may be directly welded or contact connection formed after pressing, or any other way as long as the two are conductive. The manner of welding includes, but is not limited to, laser welding, ultrasonic welding, and the like.

In some embodiments, as shown in fig. 4-5, the electrode ring 23 is provided with a notch 2311 at the second end 21b of the base 21, which is advantageous for exposing a portion of the base 21, and the first conductive lead 24 is connected to a portion of the base 21 exposed to the notch 2311 of the electrode ring 23, so that the first conductive lead 24 does not need to be extended to a certain length to be connected to the first end 21a of the base 21, which facilitates connection and fixation of the first conductive lead 24 at the second end 21b of the base 21, and reduces the risk of influencing assembly due to overlong first conductive lead 24 when the heater 20 is mounted in the housing 10.

It should be understood that the position of the base 21 for connection with the first conductive lead 24 may be other positions than the above-mentioned portion of the base 21 exposed to the notch 2311 of the electrode ring 23, and may be specifically set as required. Illustratively, as shown in FIGS. 6-7, the first conductive leads 24 are connected to first bonding structures 211 on the outer surface of the substrate 21.

In some embodiments, the circuit board 150 obtains the temperature of the heater 20 by monitoring the resistance or change in resistivity of the heating element 22. In some embodiments, the first and second conductive leads 24 and 25 each employ two different thermocouple wires, thereby forming a thermocouple therebetween for temperature measurement to obtain the temperature of the heater 20. In some embodiments, the temperature of heater 20 is monitored by adding a temperature sensor, such as a platinum-heat resistor, in contact with heating element 22.

The aerosol-generating device 100 provided by the embodiment of the application comprises a chamber 130 and a heater 20, the chamber 130 having an opening 111, the opening 111 being for the passage of the aerosol-generating article 1000; the heater 20 is for heating the aerosol-generating article 1000 received within the chamber 130, the heater 20 comprising a substrate 21, a heating element 22 and an electrode ring 23, the substrate 21 being configured to extend along the length of the heater 30 and at least partially surrounding or defining the chamber 130; at least one first engagement structure 211 is provided on the outer surface of the base 21; the heating element 22 surrounds or is bonded to at least a portion of the substrate for heating the aerosol-generating article 1000 received within the chamber 130; the electrode ring 23 is in electrically conductive connection with the heating element 22 for at least partly guiding an electrical current over the heating element 22; the electrode ring 23 surrounds and is bonded to the base 21, and at least one second bonding structure 231 is provided on the electrode ring 23; the second engagement structure 231 is coupled with the first engagement structure 211 to prevent rotation of the electrode ring 23 relative to the base 21. In this way, the stability of the connection of the electrode ring 23 to the base 21 is advantageously improved, reducing the risk of rotation of the electrode ring 23 with respect to the base 21.

The foregoing description is only of embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes using the descriptions and the drawings of the present utility model or directly or indirectly applied to other related technical fields are included in the scope of the present utility model.

Claims (10)

1. An aerosol-generating device configured to heat an aerosol-generating article to generate an aerosol; characterized by comprising the following steps:

a chamber having an opening; in use, the aerosol-generating article is capable of passing through the opening;

A heater for heating an aerosol-generating article received within the chamber; the heater includes:

A base configured to extend along a length of the heater and at least partially surround or define the chamber; at least one first engagement structure is disposed on an outer surface of the base;

A heating element surrounding or bonded to at least a portion of the substrate for heating the aerosol-generating article received within the chamber;

An electrode ring in conductive connection with the heating element for at least partially directing an electrical current over the heating element; the electrode ring surrounds and is combined with the matrix, and at least one second joint structure is arranged on the electrode ring; the second engagement structure is couplable with the first engagement structure, thereby preventing rotation of the electrode ring relative to the base.

2. The aerosol-generating device according to claim 1, wherein a plurality of first engagement structures are provided on the outer surface of the substrate, the plurality of first engagement structures being equally spaced around the outer surface of the substrate;

And/or a plurality of second joint structures are arranged on the electrode ring, and the second joint structures are arranged at equal intervals along the circumferential direction of the electrode ring.

3. The aerosol-generating device according to claim 1, wherein the first engagement structure comprises a protrusion provided on an outer surface of the substrate and the second engagement structure comprises a recess or indentation provided on the electrode ring.

4. The aerosol-generating device of claim 1, wherein the substrate comprises oppositely disposed first and second ends, the first end being adjacent the opening relative to the second end, the electrode ring being disposed adjacent the second end.

5. The aerosol-generating device of claim 4, wherein the substrate is a conductor, further comprising a first conductive lead and a second conductive lead for powering the heating element, the first conductive lead and one end of the heating element each being electrically connected to the substrate to form an electrically conductive connection;

The other end of the heating element and the second conductive lead are electrically connected to the electrode ring to form a conductive connection.

6. The aerosol-generating device of claim 5, wherein one end of the heating element is conductively coupled to the substrate proximate a first end of the substrate and the first conductive lead is conductively coupled to the substrate proximate a second end of the substrate.

7. The aerosol-generating device according to claim 6, wherein the electrode ring is provided with a notch at the second end of the substrate to reveal a portion of the substrate, the first conductive lead being connected to a portion of the substrate exposed to the notch of the electrode ring.

8. The aerosol-generating device of claim 6, wherein the first electrically conductive lead is connected to a first bonding structure on the outer surface of the substrate.

9. The aerosol-generating device according to claim 1, wherein the heating element is configured as a heating coil disposed around the base body, a cross section of wire material of the heating coil being configured to extend along an axial direction of the heating coil for a length greater than a length extending along a radial direction.

10. A heater for an aerosol-generating device, comprising:

a base body configured in a tubular shape extending in a longitudinal direction of the heater, the base body having at least one first engagement structure provided on an outer surface thereof;

A heating element surrounding or bonded to at least a portion of the substrate for heating the aerosol-generating article;

An electrode ring in conductive connection with the heating element for at least partially directing an electrical current over the heating element; the electrode ring surrounds and is combined with the matrix, and at least one second joint structure is arranged on the electrode ring; the second engagement structure is coupled with the first engagement structure to prevent rotation of the electrode ring relative to the base.