CN219781579U

CN219781579U - Heater and aerosol generating device

Info

Publication number: CN219781579U
Application number: CN202223291198.2U
Authority: CN
Inventors: 陈伟; 胡瑞龙; 徐中立; 李永海
Original assignee: Shenzhen FirstUnion Technology Co Ltd
Current assignee: Shenzhen FirstUnion Technology Co Ltd
Priority date: 2022-12-08
Filing date: 2022-12-08
Publication date: 2023-10-03
Anticipated expiration: 2032-12-08

Abstract

The present application provides a heater and an aerosol-generating device, the heater comprising: a base; the electric heating film layer is arranged on the surface of the substrate; an electrically conductive element configured to feed electric power to the electrically heated film layer, and such that a flow direction of current on the electrically heated film layer is extended in the axial direction of the base body; wherein the conductive element comprises at least one electrode extending in the axial direction of the substrate, which electrode is arranged at intervals from the electrically heated film layer. The application feeds electric power to the electric heating film layer through at least one electrode which extends along the axial direction of the substrate and is arranged at intervals with the electric heating film layer, so that the flow direction of current on the electric heating film layer extends along the axial direction of the substrate; therefore, the resistance of the electric heating film layer can be reduced, the heating rate of the aerosol forming substrate is improved, and the use experience of a user is improved.

Description

Heater and aerosol generating device

Technical Field

The application relates to the technical field of electronic atomization, in particular to a heater and an aerosol generating device.

Background

Smoking articles such as cigarettes and cigars burn tobacco during use to produce smoke. Attempts have been made to provide alternatives to these tobacco-burning articles by creating products that release compounds without burning. An example of such a product is a so-called heated non-combustible product, which releases a compound by heating tobacco rather than burning tobacco.

The existing aerosol generating device has the problems that the resistance value of the electric heating film layer is large, the heating rate of the aerosol forming substrate is low, and the use experience of a user is low.

Disclosure of Invention

The utility model provides a heater and an aerosol generating device, and aims to solve the problems of larger resistance value of an electric heating film layer and slower heating rate of an aerosol forming substrate in the existing aerosol generating device.

In one aspect, the utility model provides a heater configured to heat an aerosol-forming substrate in an aerosol-generating article to generate an aerosol; the heater includes:

a base;

the electric heating film layer is arranged on the surface of the substrate;

an electrically conductive element configured to feed electric power to the electrically heated film layer, and such that a flow direction of current on the electrically heated film layer is extended in the axial direction of the base body;

wherein the conductive element comprises at least one electrode extending in the axial direction of the substrate, which electrode is arranged at intervals from the electrically heated film layer.

Another aspect of the utility model provides an aerosol-generating device comprising:

a housing assembly;

a heater disposed within the housing assembly;

And the battery cell is used for providing electric power.

According to the heater and the aerosol generating device provided by the application, electric power is fed to the electric heating film layer through at least one electrode which extends along the axial direction of the substrate and is arranged at intervals with the electric heating film layer, so that the flow direction of current on the electric heating film layer extends along the axial direction of the substrate; therefore, the resistance of the electric heating film layer can be reduced, the heating rate of the aerosol forming substrate is improved, and the use experience of a user is improved.

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 are not to scale, unless expressly stated otherwise.

Fig. 1 is a schematic view of an aerosol-generating device provided by an embodiment of the present application;

fig. 2 is an exploded schematic view of an aerosol-generating device provided by an embodiment of the present application;

FIG. 3 is a schematic view of a first heater provided in an embodiment of the present application;

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

FIG. 5 is a schematic diagram of a method for manufacturing a first heater according to an embodiment of the present application;

FIG. 6 is a schematic diagram of a second heater provided in an embodiment of the present application;

FIG. 7 is a schematic plan view of a second heater according to an embodiment of the present application;

FIG. 8 is a schematic view of a third heater provided in an embodiment of the present application;

FIG. 9 is a schematic plan view of a third heater according to an embodiment of the present application;

FIG. 10 is a schematic view of a fourth heater provided in an embodiment of the present application;

FIG. 11 is a schematic plan view of a fourth heater according to an embodiment of the present application;

FIG. 12 is a schematic view of a fifth heater provided in an embodiment of the present application;

FIG. 13 is a schematic plan view of a fifth heater according to an embodiment of the present application;

FIG. 14 is a schematic plan view of a sixth heater according to an embodiment of the present application;

fig. 15 is a schematic view of a seventh heater provided in an embodiment of the present application.

Detailed Description

In order that the application 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", "left", "right", "inner", "outer" and the like are used in this specification for illustrative purposes only.

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 application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used in this specification includes any and all combinations of one or more of the associated listed items.

Fig. 1-2 illustrate an aerosol-generating device 100 according to an embodiment of the application, the aerosol-generating device 100 comprising a housing assembly 6 and a heater 11, the heater 11 being arranged within the housing assembly 6.

The housing assembly 6 includes a housing 61, a fixing housing 62, a base and a bottom cover 64, wherein the fixing housing 62 and the base are both fixed in the housing 61, the base is used for fixing the heater 11, the base is disposed in the fixing housing 62, and the bottom cover 64 is disposed at one end of the housing 61 and covers the housing 61.

The base includes the base 15 of setting in the proximal end of heater 11 and sets up the base 13 at the distal end of heater 11, in fixed shell 62 is all located to base 15 and base 13, the bottom 64 epirelief is equipped with intake pipe 641, the one end that base 13 deviates from base 15 is connected with intake pipe 641, base 15, heater 11, base 13 and intake pipe 641 are coaxial to be set up, and seal through the sealing member between heater 11 and base 15, the base 13, base 13 also seals with intake pipe 641, intake pipe 641 and external air intercommunication can smoothly admit air when being convenient for the user to suck.

The aerosol-generating device 100 further comprises an electrical circuit 3 and a battery cell 7. The fixed shell 62 includes preceding shell 621 and backshell 622, preceding shell 621 and backshell 622 fixed connection, and circuit 3 and electric core 7 all set up in fixed shell 62, and electric core 7 is connected with the circuit 3 electricity, and button 4 is protruding to be established on shell 61, through pressing button 4, can realize the circular telegram or the outage to the electrical heating rete on the heater 11, and the electrical heating rete includes the electrothermal coating, and the preferred adoption can radiate infrared electrothermal coating. The circuit 3 is further connected to a charging interface 31, the charging interface 31 is exposed on the bottom cover 64, and a user can charge or upgrade the aerosol-generating device 100 through the charging interface 31 to ensure continuous use of the aerosol-generating device 100.

The aerosol-generating device 100 further comprises a heat insulating tube 17, the heat insulating tube 17 being disposed within the stationary housing 62, the heat insulating tube 17 being disposed at the periphery of the heater 11, the heat insulating tube 17 being adapted to avoid a significant amount of heat being transferred to the housing 61 to cause the user to feel scalding his hands. The insulating tube comprises an insulating material which may be a heat insulating gel, aerogel blanket, asbestos, aluminum silicate, calcium silicate, diatomaceous earth, zirconia, or the like. The heat insulating pipe 17 may be a vacuum heat insulating pipe. The heat insulating pipe 17 may further be formed with an infrared reflective coating to reflect part of heat radiated from the heater 11 back to the heater 11, thereby improving heating efficiency.

The aerosol-generating device 100 further comprises a temperature sensor 2, such as an NTC thermistor, PTC thermistor or thermocouple, for detecting the real-time temperature of the heater 11 and transmitting the detected real-time temperature to the circuit 3, the circuit 3 adjusting the magnitude of the current flowing through the heater 11 in dependence on the real-time temperature.

Fig. 3-4 illustrate a heater provided by a first example of the present application. As shown in fig. 3 to 4, the heater 11 includes:

the base 111 has a chamber formed therein adapted to receive an aerosol-forming substrate.

Specifically, base 111 includes a proximal end and a distal end, and a surface extending between the proximal and distal ends. The inside of the base 111 is hollow to form the chamber. The base 111 may be tubular, such as cylindrical, prismatic, or other cylindrical. The base 111 is preferably cylindrical, and the chamber is a cylindrical hole extending through the middle of the base 111.

In one example, the inner diameter of the base 111 is between 6mm and 15mm, or between 7mm and 14mm, or between 7mm and 12mm, or between 7mm and 10mm. The axial extension of the base body 111 is 15mm to 30mm, or 15mm to 28mm, or 15mm to 25mm, or 16mm to 25mm, or 18mm to 24mm, or 18mm to 22mm. The matrix 111 of this size is suitable for use in a short and thick aerosol-generating article.

In one example, the inner diameter of the base 111 is between 5mm and 5.9mm, and in a specific example may be 5.5mm, 5.4mm, etc. The axial extension of the base 111 is between 30mm and 60mm, or between 30mm and 55mm, or between 30mm and 50mm, or between 30mm and 45mm, or between 30mm and 40mm. The substrate 111 of this size is suitable for use in an elongated aerosol-generating article.

The substrate 111 may be made of a material that is resistant to high temperature and transmits infrared rays, such as quartz glass, ceramic, or mica, or may be made of other materials having high infrared transmittance, for example: the high temperature resistant material having an infrared transmittance of 95% or more is not particularly limited herein.

An aerosol-forming substrate is a substrate capable of releasing volatile compounds that can form an aerosol. Such volatile compounds may be released by heating the aerosol-forming substrate. The aerosol-forming substrate may be solid or liquid or comprise solid and liquid components. The aerosol-forming substrate may be adsorbed, coated, impregnated or otherwise loaded onto a carrier or support. The aerosol-forming substrate may conveniently be part of an aerosol-generating article.

The aerosol-forming substrate may comprise nicotine. The aerosol-forming substrate may comprise tobacco, for example may comprise a tobacco-containing material comprising volatile tobacco flavour compounds which are released from the aerosol-forming substrate when heated. The aerosol-forming substrate may comprise at least one aerosol-forming agent, which may be any suitable known compound or mixture of compounds that, in use, facilitates the formation of a dense and stable aerosol and is substantially resistant to thermal degradation at the operating temperature of the aerosol-generating system. Suitable aerosol formers are well known in the art and include, but are not limited to: polyols, such as triethylene glycol, 1, 3-butanediol and glycerol; esters of polyols, such as glycerol mono-, di-or triacetate; and fatty acid esters of mono-, di-or polycarboxylic acids, such as dimethyldodecanedioate and dimethyltetradecanedioate.

The infrared electrothermal coating 112 receives electric power to generate heat, and thus generates infrared rays with a certain wavelength, for example: far infrared rays of 8-15 μm penetrate through the substrate 111 and heat the aerosol-forming substrate in the chamber. When the wavelength of the infrared light matches the absorption wavelength of the aerosol-forming substrate, the energy of the infrared light is readily absorbed by the aerosol-forming substrate.

The infrared electrothermal coating 112 is preferably formed by uniformly stirring far infrared electrothermal ink, ceramic powder and inorganic adhesive, coating on the outer surface of the substrate 111, and then drying and curing for a certain time, wherein the thickness of the infrared electrothermal coating 112 is 30-50 μm; of course, the infrared electrothermal coating 112 can also be formed by mixing and stirring tin tetrachloride, tin oxide, antimony trichloride, titanium tetrachloride and anhydrous copper sulfate according to a certain proportion and then coating the mixture on the outer surface of the substrate 111; 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; infrared electrothermal coating 112 may also be an existing coating of other materials.

An infrared electrothermal coating 112 is formed on the surface of the substrate 111. The infrared electrothermal coating 112 may be formed on the outer surface of the base 111 or may be formed on the inner surface of the base 111.

In a preferred implementation, infrared electrothermal coating 112 is formed on the outer surface of substrate 111. The infrared electrothermal coating 112 includes a first infrared electrothermal coating S1, a second infrared electrothermal coating (S21, S22), a third infrared electrothermal coating (S31, S32) and a fourth infrared electrothermal coating (S41, S42) which are disposed at intervals from the proximal end of the base 111 toward the distal end of the base 111, i.e., in the axial direction of the base 111. The second infrared electrothermal coating (S21, S22) includes an infrared electrothermal coating S21 and an infrared electrothermal coating S22 (sub-infrared electrothermal coating) disposed at intervals along the circumferential direction of the base 111, the third infrared electrothermal coating (S31, S32) includes an infrared electrothermal coating S31 and an infrared electrothermal coating S32 disposed at intervals along the circumferential direction of the base 111, and the fourth infrared electrothermal coating (S41, S42) includes an infrared electrothermal coating S41 and an infrared electrothermal coating S42 disposed at intervals along the circumferential direction of the base 111.

The conductive element, including electrode 113 and electrode 114 disposed on substrate 111 at intervals, is used to feed the electric power provided by cell 7 to infrared electrothermal coating 112.

Electrode 113 and electrode 114 are both held in contact with infrared electrothermal coating 112 to form an electrical connection. The electrodes 113 and 114 may be conductive coatings, which may be metal coatings, which may include silver, gold, palladium, platinum, copper, nickel, molybdenum, tungsten, niobium, or metal alloy materials described above.

The electrode 113 includes an electrode 113a extending in the axial direction of the base 111 and having a stripe shape, an electrode 113b extending in the circumferential direction of the base 111 and having an arc shape, an electrode 113c, and an electrode 113d, the electrodes 113b, 113c, and 113d being sequentially arranged at intervals in the axial direction of the base 111.

The electrode 113a is spaced apart from the infrared electrothermal coating 112. One end of the electrode 113a is disposed near the proximal end of the base 111, and the other end of the electrode 113a is disposed near the distal end of the base 111. Preferably, the electrode 113a is spaced apart from the proximal or distal end of the substrate 111; the separation distance is between 0 and 1mm, and in particular examples may be 0.2mm, 0.4mm, 0.5mm, 0.7mm, and so on.

The electrode 113b is disposed near the proximal end of the base 111. The electrode 113b starts from the electrode 113a, extends in the circumferential direction of the base 111, and then ends at the electrode 113a. The circumferential extension of the electrode 113b is greater than the circumferential extension of the first infrared electrothermal coating S1. The electrode 113b is held in contact with the first infrared electrothermal coating S1 to form an electrical connection.

The electrode 113c is disposed near the middle of the substrate 111, and the electrode 113c is disposed between the second infrared electrothermal coating (S21, S22) and the third infrared electrothermal coating (S31, S32). Electrode 113c begins at electrode 113a, and a portion of electrode 113c extends in a first circumferential direction, e.g., clockwise, of substrate 111 and then is disposed adjacent electrode 114, with portion of electrode 113c being in contact with infrared electrothermal coating S22 and infrared electrothermal coating S32 to form an electrical connection; another portion of the electrode 113c is disposed near the electrode 114 after extending in a second circumferential direction of the base 111, for example, counterclockwise, and the other portion of the electrode 113c is held in contact with the infrared electrothermal coating S21 and the infrared electrothermal coating S31 to form an electrical connection.

The electrode 113d is disposed near the distal end of the base 111. Electrode 113d begins at electrode 113a, and a portion of electrode 113d extends in a first circumferential direction, e.g., clockwise, of substrate 111 and then is disposed adjacent electrode 114, with portion of electrode 113d remaining in contact with infrared electrothermal coating S42 to form an electrical connection; another part of the electrode 113d is disposed near the electrode 114 after extending in a second circumferential direction of the base 111, for example, counterclockwise, and the other part of the electrode 113d is held in contact with the infrared electrothermal coating S41 to form an electrical connection.

The electrode 114 includes an electrode 114a extending in the axial direction of the base 111 and having a stripe shape, an electrode 114b extending in the circumferential direction of the base 111 and having an arc shape, and an electrode 114c, the electrodes 114b, 114c being sequentially arranged at intervals in the axial direction of the base 111.

The electrode 114a is disposed at a distance from the second infrared electrothermal coating layer (S21, S22), the third infrared electrothermal coating layer (S31, S32), and the fourth infrared electrothermal coating layer (S41, S42). The electrode 114a and the electrode 113a are disposed at intervals along the circumferential direction of the substrate 111, that is, on both sides of the infrared electrothermal coatings S21, S31, S41. The axial extension of electrode 114a is less than the axial extension of electrode 113 a. One end of electrode 114a is disposed proximate to first infrared electrothermal coating S1, preferably, one end of electrode 114a is held in contact with first infrared electrothermal coating S1; the other end of the electrode 114a is disposed near the distal end of the base 111.

The electrode 114b is disposed between the first infrared electrothermal coating S1 and the second infrared electrothermal coating (S21, S22), or between the electrode 113b and the electrode 113 c. Electrode 114b begins at electrode 114a, and a portion of electrode 114b extends in a first circumferential direction, e.g., clockwise, of substrate 111 and then is disposed adjacent electrode 113a, with portion of electrode 114b being in contact with infrared electrothermal coating S1 and infrared electrothermal coating S21 to form an electrical connection; another portion of the electrode 114b is disposed adjacent to the electrode 113a after extending in a second circumferential direction of the base 111, for example, a counterclockwise direction, and the other portion of the electrode 114b is held in contact with the infrared electrothermal coating S1 and the infrared electrothermal coating S22 to form an electrical connection.

The electrode 114c is disposed between the third infrared electrothermal coating (S31, S32) and the fourth infrared electrothermal coating (S41, S42). Electrode 114c begins at electrode 114a, and a portion of electrode 114c extends in a first circumferential direction, e.g., clockwise, of substrate 111 and then is disposed adjacent electrode 113a, with portion of electrode 114c being in contact with infrared electrothermal coating S31 and infrared electrothermal coating S41 to form an electrical connection; another portion of the electrode 114c is disposed adjacent to the electrode 113a after extending in a second circumferential direction of the base 111, for example, a counterclockwise direction, and the other portion of the electrode 114c is held in contact with the infrared electrothermal coating S32 and the infrared electrothermal coating S42 to form an electrical connection.

After the electrodes 113 and 114 are electrically conductive, the electrodes 113 and 114 simultaneously feed the electric power supplied from the battery cell 7 to the first infrared electrothermal coating S1, the second infrared electrothermal coating (S21, S22), the third infrared electrothermal coating (S31, S32), and the fourth infrared electrothermal coating (S41, S42). That is, the first infrared electrothermal coating S1, the second infrared electrothermal coating (S21, S22), the third infrared electrothermal coating (S31, S32), and the fourth infrared electrothermal coating (S41, S42) are equivalent to being connected in parallel between the electrode 113 and the electrode 114. Infrared electrothermal coating S21 and infrared electrothermal coating S22, infrared electrothermal coating S31 and infrared electrothermal coating S32, infrared electrothermal coating S41 and infrared electrothermal coating S42 are also connected in parallel between electrode 113 and electrode 114. By a plurality of infrared electrothermal coatings connected in parallel, the resistance of the infrared electrothermal coating 112 can be reduced as a whole. Assuming that current flows from electrode 113 and from electrode 114, the current flow on infrared electrothermal coating 112 is substantially along the axial direction of substrate 111 (as indicated by the dashed arrow in the figure). Wherein the current flow direction on the first infrared electrothermal coating layer S1 and the third infrared electrothermal coating layers (S31 and S32) is consistent with the extending direction from the proximal end of the substrate 111 to the distal end of the substrate 111, and the current flow direction on the second infrared electrothermal coating layers (S21 and S22) and the fourth infrared electrothermal coating layers (S41 and S42) is consistent with the extending direction from the distal end of the substrate 111 to the proximal end of the substrate 111, and the current flow directions on the adjacent infrared electrothermal coating layers are opposite.

It will be appreciated that the number of infrared electrothermal coatings in parallel is not limited to that shown in fig. 3-4 and may be increased or decreased.

In the plurality of parallel infrared electrothermal coatings, the equivalent resistance of each infrared electrothermal coating can be the same, can be partially the same or can be different; similarly, the heating power of each infrared electrothermal coating can be the same, can be partially the same, or can be different. By adjusting the equivalent resistance of each infrared electrothermal coating, the power distribution of each region can be adjusted, thereby adjusting the temperature distribution of each region.

In a preferred implementation, the equivalent resistance of the first infrared electrothermal coating S1 is relatively smaller, the heating power is relatively larger, and the heating speed is relatively faster; in this way, the temperature of the aerosol-forming substrate corresponding to the first infrared electrothermal coating S1 can be quickly increased and a smokable aerosol can be generated, so that the preheating time of the aerosol-forming substrate is shortened and the waiting time for suction is reduced, compared with the aerosol-forming substrates corresponding to other infrared electrothermal coatings. The equivalent resistance values of the second infrared electrothermal coating (S21, S22), the third infrared electrothermal coating (S31, S32), and the fourth infrared electrothermal coating (S41, S42) may be the same.

It should be noted that the heating rate of the first infrared electrothermal coating S1 is faster than that of the other infrared electrothermal coatings, for example, the second infrared electrothermal coatings (S21, S22), and can be verified by the following ways: setting the same preset temperature, when the heating temperature of the first infrared electrothermal coating S1 reaches the preset temperature from the initial temperature (e.g., ambient temperature), if the heating temperature of the second infrared electrothermal coating (S21, S22) is lower than the preset temperature, it can be said that the heating speed of the first infrared electrothermal coating S1 is faster than the heating speed of the second infrared electrothermal coating (S21, S22). The preset temperature may be the maximum temperature of the aerosol-generating device 100 or may be the operating temperature, i.e. the temperature at which the aerosol-forming substrate is capable of generating an aerosol.

Due to the difference in equivalent resistance, heating power or heating rate, there is a difference or a large difference in temperature between different infrared electrothermal coatings during the preheating stage of the aerosol-generating device 100; while the temperature difference between the different infrared electrothermal coatings is relatively small during the soak phase or the puff phase of the aerosol-generating device 100. The pre-heating stage, the holding stage, or the pumping stage described above are different time durations in a curve of temperature variation of the aerosol-forming article or the infrared electrothermal coating over time.

Note that, according to the calculation formula r=ρl/S of the resistance, at a constant resistivity ρ (the resistivity ρ is constant when the infrared electrothermal coating is uniformly applied), the resistance value of the resistance depends on the value of the parameter L, S. Therefore, by setting the L, S parameters of the infrared electrothermal coating, the equivalent resistance value of each infrared electrothermal coating can be adjusted.

It should be noted that, in the examples of fig. 3-4, the arrangement of the electrodes 113 and 114 facilitates the routing with the battery cell 7, for example: a first wire electrically connected to the electrode 113, and a second wire electrically connected to the electrode 114, one ends of the first wire and the second wire may be disposed at the distal end of the base 111, and the other ends of the first wire and the second wire may be electrically connected to the battery cell 7. Of course, it is also possible that one end of the first wire is disposed at the distal end of the base 111 and one end of the second wire is disposed at the proximal end of the base 111.

In the example of fig. 3 to 4, the base 111 is further provided with a positioning groove, and in a preferred embodiment, the positioning groove is disposed at a distal end of the base 111, for example, formed by recessing a portion of the distal end of the base 111. The positioning groove may be used to position the base 111, for example: the projection on the base 13 mates with the detent to hold the distal end of the base 111 when assembled; when the heater 11 is manufactured, the preparation tool is matched with the positioning groove, so that information such as the direction and the end point of the electric heating film layer and the electrode can be determined, namely, the electric heating film layer and the electrode can be coated, and the manufacturing efficiency is improved.

The electrode 113a is disposed at a distance from the infrared electrothermal coating 112, and the electrode 114a is disposed at a distance from the second infrared electrothermal coating (S21, S22), the third infrared electrothermal coating (S31, S32), and the fourth infrared electrothermal coating (S41, S42), which may be achieved by at least one of:

coating a conductive element on the surface of the substrate 111; then, an electric heating film layer is coated on the surface of the substrate 111; finally, removing part of the electric heating film layer close to the electrode 113a and the electrode 114a from the coated electric heating film layer;

firstly, coating an electric heating film layer on the surface of the substrate 111, then coating a conductive element on the surface of the substrate 111, and finally removing part of the electric heating film layer close to the electrode 113a and the electrode 114 a;

firstly, coating an electric heating film layer on the surface of the substrate 111, then removing part of the electric heating film layer on the surface, and finally, coating a conductive element on part of the surface; (partial coating means that the conductive element or the electrically heated film layer is not coated with the corresponding surface, similar to the following)

Partially coating the conductive element on the first partial surface of the substrate 111, and entirely coating the electrically heated film layer on the second partial surface of the substrate 111; alternatively, the conductive elements are entirely coated on the first partial surface of the substrate 111, and the electrically heated film layer is partially coated on the second partial surface of the substrate 111; alternatively, the conductive element is partially coated on a first partial surface of the substrate 111, and the electrically heated film layer is partially coated on a second partial surface of the substrate 111; (by fully coated is meant that the conductive element or electrically heated film layer is coated over the corresponding surface)

The conductive elements are coated on a first partial surface of the substrate 111, and the electrically heated film layer is coated on a second partial surface of the substrate 111, the first partial surface being spaced apart from the second partial surface.

For ease of understanding, the method of manufacturing the heater 11 in the example of fig. 3-4 will be described in connection with one of the alternate arrangements:

as shown in fig. 5, the method for manufacturing the heater 11 includes:

step S11, providing a substrate 111, and coating an infrared electrothermal coating and a conductive element on the surface of the substrate 111;

in this step, the infrared electrothermal coating may be coated first, followed by the conductive element; or the conductive element can be coated first and then the infrared electrothermal coating can be coated. The shape of the conductive member is coated as illustrated in fig. 3 to 4, and the infrared electrothermal coating is coated for one round in the circumferential direction of the base 111 with the upper and lower ends of the infrared electrothermal coating being spaced apart from the ends of the base 111.

Step S12, removing a portion of the infrared electrothermal coating layer near the electrode 113a and the electrode 114a from the coated infrared electrothermal coating layer.

In this step, it is necessary to remove portions of the infrared electrothermal coating near the electrode 113a and the electrode 114a from among the coated infrared electrothermal coatings, thereby forming a first infrared electrothermal coating S1, a second infrared electrothermal coating (S21, S22), a third infrared electrothermal coating (S31, S32), and a fourth infrared electrothermal coating (S41, S42) shown in fig. 3 or fig. 4.

Fig. 6-7 illustrate a heater provided by a second example of the present application.

In the example of fig. 6-7, the infrared electrothermal coating 112 includes a first infrared electrothermal coating S1. The first infrared electrothermal coating S1 is not partitioned into other infrared electrothermal coatings.

The electrode 113 includes an electrode 113a extending in the axial direction of the base 111 and having a stripe shape, and an electrode 113b extending in the circumferential direction of the base 111 and having an arc shape.

Similar to the example of fig. 3-4, electrode 113a is spaced apart from first infrared electrothermal coating S1; one end of the electrode 113a is disposed near the proximal end of the base 111, and the other end of the electrode 113a is disposed near the distal end of the base 111. The electrode 113b is disposed near the proximal end of the base 111; the electrode 113b starts from the electrode 113a, extends in the circumferential direction of the base 111, and then ends at the electrode 113a; the circumferential extension of the electrode 113b is greater than the circumferential extension of the first infrared electrothermal coating S1; the electrode 113b is held in contact with the first infrared electrothermal coating S1 to form an electrical connection.

Unlike the examples of fig. 3 to 4, the electrode 114 is configured to extend in the circumferential direction of the base 111 and to be arc-shaped. An electrode 114 is disposed proximate the distal end of the base 111. The circumferential extension of the electrode 114 is the same as the circumferential extension of the first infrared electrothermal coating S1. Electrode 114 is held in contact with first infrared electrothermal coating S1 to form an electrical connection.

Unlike the examples of fig. 3-4, the inner diameter of the base 111 is between 6mm and 15mm, or between 7mm and 14mm, or between 7mm and 12mm, or between 7mm and 10mm. The axial extension of the base body 111 is 15mm to 30mm, or 15mm to 28mm, or 15mm to 25mm, or 16mm to 25mm, or 18mm to 24mm, or 18mm to 22mm. The matrix 111 of this size is suitable for use in a short and thick aerosol-generating article.

From the calculation formula r=ρl/S of the resistance, the current flow direction is the infrared electrothermal coating 112 extending substantially in the axial direction of the base 111, the value of the parameter L is decreased and the value of the parameter S is increased with respect to the infrared electrothermal coating in which the current flow direction is extending substantially in the circumferential direction of the base 111; accordingly, the heater illustrated in fig. 6-7 is capable of reducing the resistance of the infrared electrothermal coating 112. If a plurality of infrared electrothermal coatings are connected in parallel as in the examples of fig. 3-4, the resistance value of the infrared electrothermal coating 112 can be further reduced.

Similar to the examples of fig. 3-4, the arrangement of electrodes 113 and 114 facilitates routing with the cells 7.

It should be noted that, in the examples of fig. 6 to 7, the same reference numerals are used for the same components as those of the examples of fig. 3 to 4, and other non-recited matters may be referred to the foregoing, and the following examples are similar.

Fig. 8-9 illustrate a heater provided by a third example of the present application.

In the examples of fig. 8-9, the dimensions of the substrate 111 may be designed to be suitable for use with a short or long form of aerosol-generating article. Preferably, the aerosol-generating article is sized for use with a stubby type aerosol-generating article, i.e. the inner diameter of the base 111 is between 6mm and 15mm, or between 7mm and 14mm, or between 7mm and 12mm, or between 7mm and 10mm. The axial extension of the base body 111 is 15mm to 30mm, or 15mm to 28mm, or 15mm to 25mm, or 16mm to 25mm, or 18mm to 24mm, or 18mm to 22mm.

In the example of fig. 8-9, infrared electrothermal coating 112 includes a first infrared electrothermal coating S1 and a second infrared electrothermal coating S2, while second infrared electrothermal coating S2 is not separated into other infrared electrothermal coatings.

The electrode 113 includes an electrode 113a extending in the axial direction of the base 111 and having a stripe shape, and electrodes 113b, 113c extending in the circumferential direction of the base 111 and having an arc shape.

Similar to the example of fig. 3-4, electrode 113a is spaced apart from first infrared electrothermal coating S1 and second infrared electrothermal coating S2; one end of the electrode 113a is disposed near the proximal end of the base 111, and the other end of the electrode 113a is disposed near the distal end of the base 111. The electrode 113b is disposed near the proximal end of the base 111; the electrode 113b starts from the electrode 113a, extends in the circumferential direction of the base 111, and then ends at the electrode 113a; the circumferential extension of the electrode 113b is greater than the circumferential extension of the first infrared electrothermal coating S1; the electrode 113b is held in contact with the first infrared electrothermal coating S1 to form an electrical connection.

Unlike the examples of fig. 3-4, electrode 113c is disposed near the distal end of base 111. One end of the electrode 113c starts from the electrode 113a, and the other end is disposed near the electrode 114 after extending in the second circumferential direction of the base 111, i.e., counterclockwise. The electrode 113c is held in contact with the second infrared electrothermal coating S2 to form an electrical connection.

The electrode 114 includes an electrode 114a extending in the axial direction of the base 111 and having a stripe shape, and an electrode 114b extending in the circumferential direction of the base 111 and having an arc shape.

Unlike the examples of fig. 3-4, electrode 114a is disposed proximate electrode 113 a. The spacing distance between the electrode 114a and the electrode 113a is 0 to 1mm, and in specific examples, may be 0.2mm, 0.4mm, 0.5mm, 0.7mm, and so on.

Unlike the examples of fig. 3-4, electrode 114b is disposed between first infrared electrothermal coating S1 and second infrared electrothermal coating S2. One end of the electrode 114b starts from the electrode 114a, and the other end is disposed near the electrode 113a after extending in the first circumferential direction of the base 111, i.e., clockwise. Electrode 114b is held in contact with first infrared electrothermal coating S1 and second infrared electrothermal coating S2 to form an electrical connection.

Similar to the example of fig. 3-4, after electrode 113 and electrode 114 are electrically conductive, electrode 113 and electrode 114 feed the electrical power provided by cell 7 to both first ir electrothermal coating S1 and second ir electrothermal coating S2. That is, the first and second ir electrothermal coatings S1 and S2 are connected in parallel between the electrode 113 and the electrode 114. Assuming that current flows from electrode 113 and flows from electrode 114, the current flow on infrared electrothermal coating 112 is substantially extended in the axial direction of base 111 (as indicated by the dotted arrow in the figure), and thus the resistance value of infrared electrothermal coating 112 can be reduced. Further, the resistance of the infrared electrothermal coating 112 can be reduced by a plurality of infrared electrothermal coatings connected in parallel.

Similar to the examples of fig. 3-4, the arrangement of electrodes 113 and 114 facilitates routing with the cells 7. The resistance of the infrared electrothermal coating 112 can be reduced as a whole. By adjusting the equivalent resistance of each infrared electrothermal coating, the power distribution of each region can be adjusted, thereby adjusting the temperature distribution of each region.

Fig. 10 to 11 are diagrams showing a heater according to a fourth example of the present application.

In the examples of fig. 10-11, the dimensions of the substrate 111 may be designed to fit in a short and thick aerosol-generating article or in an elongated aerosol-generating article, preferably in a short and thick aerosol-generating article.

Unlike the examples of fig. 8-9, the conductive element also includes electrodes 115 spaced apart from and disposed on the substrate 111.

Unlike the examples of fig. 8 to 9, one end of the electrode 113c starts from the electrode 113a, and the other end is disposed close to the electrode 115 after extending in the second circumferential direction of the base 111, i.e., counterclockwise. The electrode 113c is spaced apart from the second infrared electrothermal coating S2.

Unlike the examples of fig. 8 to 9, the electrode 114 further includes an electrode 114c extending in the circumferential direction of the base 111 and having an arc shape. One end of the electrode 114c starts from the electrode 114a, and the other end is disposed near the electrode 115 after extending in the first circumferential direction of the base 111, i.e., clockwise. The electrode 114c is spaced apart from the second infrared electrothermal coating S2.

The electrode 115 includes electrodes 115a and 115b extending in the circumferential direction of the base 111 and having an arc shape. The electrode 115a is held in contact with the second infrared electrothermal coating S2 to form an electrical connection, and the circumferential extension length of the electrode 115a is the same as the circumferential extension length of the second infrared electrothermal coating S2. The electrode 115b is connected to the electrode 115a, and the circumferential extension length of the electrode 115b is smaller than the circumferential extension length of the electrode 115 a.

Similar to the examples of fig. 8-9, the arrangement of electrodes 113, 114 and 115 facilitates routing with the cells 7.

The infrared electrothermal coating illustrated in fig. 10 to 11 has a lower equivalent resistance value than the infrared electrothermal coating in which the current flow direction is substantially along the circumferential direction of the base 111.

Similar to the examples of fig. 8-9, electrical power may be simultaneously fed to the infrared electrothermal coating by controlling the conduction of electrode 113, electrode 114, and electrode 115. After the electrodes 113, 114, and 115 are electrically conductive, the electrodes 113, 114, and 115 simultaneously feed the electric power supplied from the battery cell 7 to the first and second infrared electrothermal coatings S1, S2. That is, the first and second ir electrothermal coatings S1 and S2 are connected in parallel between the electrodes 113, 114 and 115. By a plurality of infrared electrothermal coatings connected in parallel, the resistance of the infrared electrothermal coating 112 can be reduced as a whole. Assuming that current flows from electrode 113, electrode 115 and from electrode 114, the current flow on infrared electrothermal coating 112 is substantially along the axial direction of substrate 111 (as indicated by the dashed arrows in the figure).

Unlike the examples of fig. 8-9, staged heating of the aerosol-forming substrate may be achieved by controlling the order of conduction of electrodes 113, 114 and 115. For example, the control electrode 113 and the electrode 114 are first electrically conductive, and the first infrared electrothermal coating S1 is activated to heat the aerosol-forming substrate in the corresponding region of the first infrared electrothermal coating S1; the control electrode 114, 115 is then electrically conductive and the second ir electrothermal coating S2 is activated to heat the aerosol-forming substrate in the region corresponding to the second ir electrothermal coating S2.

Fig. 12 to 13 are diagrams showing a heater according to a fifth example of the present application.

In the examples of fig. 12-13, the dimensions of the substrate 111 may be designed to be suitable for use with a short or long form of aerosol-generating article. Preferably, the aerosol-generating article is sized for use with a stubby type aerosol-generating article, i.e. the inner diameter of the base 111 is between 6mm and 15mm, or between 7mm and 14mm, or between 7mm and 12mm, or between 7mm and 10mm. The axial extension of the base body 111 is 15mm to 30mm, or 15mm to 28mm, or 15mm to 25mm, or 16mm to 25mm, or 18mm to 24mm, or 18mm to 22mm.

In the example of fig. 12-13, infrared electrothermal coating 112 includes a first infrared electrothermal coating S1 and a second infrared electrothermal coating S2, and second infrared electrothermal coating S2 is separated into infrared electrothermal coating S21 and infrared electrothermal coating S22.

Unlike the examples of fig. 3-4, electrode 113c is disposed near the distal end of base 111.

Similar to the example of fig. 3-4, electrode 113c begins with electrode 113a, with a portion of electrode 113c extending in a first circumferential direction, e.g., clockwise, of substrate 111 and then disposed adjacent electrode 114, with the portion of electrode 113c remaining in contact with infrared electrothermal coating S22 to form an electrical connection; another part of the electrode 113c is disposed near the electrode 114 after extending in a second circumferential direction of the base 111, for example, counterclockwise, and the other part of the electrode 113c is held in contact with the infrared electrothermal coating S21 to form an electrical connection.

Similar to the example of fig. 3-4, electrode 114a is spaced from second infrared electrothermal coating S2. The electrode 114a and the electrode 113a are disposed at intervals, that is, on both sides of the infrared electrothermal coating S21. The axial extension of electrode 114a is less than the axial extension of electrode 113 a. One end of electrode 114a is disposed proximate to first infrared electrothermal coating S1, preferably, one end of electrode 114a is held in contact with first infrared electrothermal coating S1; the other end of the electrode 114a is disposed near the distal end of the base 111.

Similar to the example of fig. 3-4, electrode 114b is disposed between first infrared electrothermal coating S1 and second infrared electrothermal coating S2. Electrode 114b begins at electrode 114a, and a portion of electrode 114b extends in a first circumferential direction, e.g., clockwise, of substrate 111 and then is disposed adjacent electrode 113a, with portion of electrode 114b being in contact with infrared electrothermal coating S1 and infrared electrothermal coating S21 to form an electrical connection; another portion of the electrode 114b is disposed adjacent to the electrode 113a after extending in a second circumferential direction of the base 111, for example, a counterclockwise direction, and the other portion of the electrode 114b is held in contact with the infrared electrothermal coating S1 and the infrared electrothermal coating S22 to form an electrical connection.

Similar to the example of fig. 3-4, after electrode 113 and electrode 114 are conductive, electrode 113 and electrode 114 feed the electrical power provided by cell 7 to first infrared electrothermal coating S1, infrared electrothermal coating S21, and infrared electrothermal coating S22 simultaneously. That is, the first infrared electrothermal coating S1, the infrared electrothermal coating S21, and the infrared electrothermal coating S22 are equivalent to being connected in parallel between the electrode 113 and the electrode 114. By a plurality of infrared electrothermal coatings connected in parallel, the resistance of the infrared electrothermal coating 112 can be reduced as a whole. Assuming that current flows from electrode 113 and from electrode 114, the current flow on infrared electrothermal coating 112 is substantially along the axial direction of substrate 111 (as indicated by the dashed arrow in the figure).

Fig. 14 is a heater provided by a sixth example of the application.

Unlike the examples of fig. 12-13, the following are: the first infrared electrothermal coating S1 is divided into an infrared electrothermal coating S11 and an infrared electrothermal coating S12.

Similar to the examples of fig. 12-13, the resistance of the infrared electrothermal coating 112 may be further reduced overall.

Fig. 15 is a heater provided by a seventh example of the application.

In the example of fig. 15, the infrared electrothermal coating 112 includes a first infrared electrothermal coating S1, a second infrared electrothermal coating S2, a third infrared electrothermal coating S3, a fourth infrared electrothermal coating S4, and a fifth infrared electrothermal coating S5 sequentially arranged in the axial direction of the base 111.

In the example of fig. 15, the conductive elements include an electrode 113, an electrode 114, an electrode 115, an electrode 116, an electrode 117, and an electrode 118 that are disposed on the base 111 at intervals.

An electrode 113 is disposed near the proximal end of the substrate 111 and is held in contact with the first infrared electrothermal coating S1 to form an electrical connection.

The electrode 114 is held in contact with the first infrared electrothermal coating S1 and the second infrared electrothermal coating S2 to form an electrical connection.

Electrode 115 is held in contact with second infrared electrothermal coating S2 and third infrared electrothermal coating S3 to form an electrical connection.

The electrode 116 is held in contact with the third and fourth ir electrothermal coatings S3 and S4 to form an electrical connection.

The electrode 117 is held in contact with the fourth infrared electrothermal coating S4 and the fifth infrared electrothermal coating S5 to form an electrical connection.

Electrode 118 is held in contact with fifth infrared electrothermal coating S5 to form an electrical connection.

By controlling the conductive sequence of electrode 113, electrode 114, electrode 115, electrode 116, electrode 117, electrode 118, staged heating of the aerosol-forming substrate may be achieved.

For example: the electrode 113 and the positive electrode of the battery cell 7 can be controlled to be conducted firstly, and then the electrode 114, the electrode 115, the electrode 116, the electrode 117 and the electrode 118 are controlled to be conducted with the negative electrode of the battery cell 7 one by one in sequence; thus, when the electrodes 113 and 114 are conducted with the cell 7, the first infrared electrothermal coating S1 starts heating; when the electrode 113 and the electrode 115 are connected with the battery cell 7 (the electrode 114 is disconnected with the battery cell 7), the first infrared electrothermal coating S1 and the second infrared electrothermal coating S2 start heating; when the electrodes 113 and 116 are conducted with the battery cell 7 (the electrodes 114 and 115 are disconnected with the battery cell 7), the first infrared electrothermal coating S1, the second infrared electrothermal coating S2 and the third infrared electrothermal coating S3 start heating; when the electrodes 113 and 117 are connected with the battery cell 7 (the electrodes 114, 115, 116 and the battery cell 7 are disconnected), the first infrared electrothermal coating S1, the second infrared electrothermal coating S2, the third infrared electrothermal coating S3 and the fourth infrared electrothermal coating S4 start heating; when the electrodes 113 and 118 are connected to the cell 7 (the electrodes 114, 115, 116, 117 are disconnected from the cell 7), the first infrared electrothermal coating S1, the second infrared electrothermal coating S2, the third infrared electrothermal coating S3, the fourth infrared electrothermal coating S4 and the fifth infrared electrothermal coating S5 start heating.

For another example: the conduction between the electrode 113 and the electrode 114 and the battery core 7 can be controlled firstly, and the first infrared electrothermal coating S1 starts heating; in the case of conduction between the electrode 113 and the electrode 114 and the battery cell 7, the conduction between the electrode 115 and the battery cell 7 is controlled again, so that the first infrared electrothermal coating S1 and the second infrared electrothermal coating S2 start heating; in this order, all the electrodes are conducted with the cell 7.

For another example: the conduction between the electrode 113 and the electrode 114 and the battery core 7 can be controlled firstly, and the first infrared electrothermal coating S1 starts heating; then the control electrode 114 and the electrode 115 are conducted with the battery cell 7 (the electrode 113 is disconnected with the battery cell 7), and the second infrared electrothermal coating S2 starts heating; in this order, it is until conduction between the control electrode 117 and the electrode 118 and the cell 7.

The order of conducting the electrodes 113, 114, 115, 116, 117, and 118 is not limited to the above-described examples.

In the example of fig. 15, the substrate 111 may be sized to fit a short-and-thick type aerosol-generating article or to fit an elongated type aerosol-generating article, and is preferably sized to fit an elongated type aerosol-generating article.

It should be noted that the description of the present application and the accompanying drawings illustrate preferred embodiments of the present application, but the present application may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, which are not to be construed as additional limitations of the application, but are provided for a more thorough understanding of the present application. The above-described features are further combined with each other to form various embodiments not listed above, and are considered to be the scope of the present application described in the specification; further, modifications and variations of the present application may be apparent to those skilled in the art in light of the foregoing teachings, and all such modifications and variations are intended to be included within the scope of this application as defined in the appended claims.

Claims

1. A heater configured to heat an aerosol-forming substrate in an aerosol-generating article to generate an aerosol; characterized in that the heater comprises:

a base;

the electric heating film layer is arranged on the surface of the substrate;

2. The heater of claim 1 wherein said base is configured as a tubular structure;

the inner diameter of the matrix is between 6mm and 15mm, and the axial extension length of the matrix is between 15mm and 30mm.

3. The heater of claim 1, wherein the base further comprises a positioning slot for positioning the base.

4. The heater of claim 1, wherein the electrically heated film layer comprises an infrared electrothermal coating for receiving electrical power to generate heat to generate infrared light.

5. The heater of claim 1, wherein the electrically heated film comprises a plurality of electrically heated film layers connected in parallel and spaced apart along the axial direction of the substrate;

the conductive element is configured to feed electric power to the plurality of electrically heated film layers simultaneously, and such that a flow direction of current on the plurality of electrically heated film layers is at least one extending in the substrate axial direction.

6. The heater of claim 5, wherein the current flow on adjacent two of the plurality of electrically heated film layers is opposite.

7. The heater of claim 5, wherein at least one of the plurality of electrically heated film layers has a plurality of sub-electrically heated film layers spaced apart along the circumferential direction of the substrate.

8. The heater of claim 7, wherein at least one of the plurality of sub-electrically heated films has a resistance that is different from the resistance of the other sub-electrically heated films; or the resistances of all the plurality of sub-electric heating film layers are the same.

9. The heater of claim 5, wherein at least one of the plurality of electrically heated film layers has a resistance that is different from a resistance of the other electrically heated film layers.

10. The heater of claim 5 wherein said base comprises a proximal end and a distal end;

the electrical resistance of the electrical heating film layer near the proximal end of the substrate is smaller than the electrical resistance of the other electrical heating film layers.

11. The heater of claim 5 wherein said conductive element comprises first and second electrodes disposed in spaced relation, said first and second electrodes simultaneously feeding electrical power to said plurality of electrically heated film layers;

The first electrode comprises a third electrode extending along the axial direction of the matrix and a fourth electrode extending along the circumferential direction of the matrix, and the second electrode comprises a fifth electrode extending along the axial direction of the matrix and a sixth electrode extending along the circumferential direction of the matrix;

the third electrode and the fifth electrode are spaced apart from the plurality of electrically heated film layers, and the fourth electrode and the sixth electrode are held in contact with the plurality of electrically heated film layers to form an electrical connection.

12. The heater of claim 11, wherein the third electrode is disposed adjacent to the fifth electrode in the circumferential direction of the base body, or the third electrode and the fifth electrode are disposed on both sides of a part of the electrically heated film layer.

13. The heater of claim 11 wherein the axial extension of the third electrode is greater than the axial extension of the fifth electrode.

14. The heater of claim 11 wherein said base comprises a proximal end and a distal end;

one end of the third electrode is arranged near the proximal end of the matrix, and the other end of the third electrode is arranged near the distal end of the matrix; one end of the fifth electrode is arranged near the distal end of the matrix.

15. The heater of claim 11 wherein said first electrode comprises a plurality of said fourth electrodes and said second electrode comprises one or more of said sixth electrodes;

and one sixth electrode is arranged between two adjacent fourth electrodes along the axial direction of the matrix.

16. The heater of claim 11, wherein the fourth electrode is configured to begin at the third electrode and end at the third electrode after extending in the circumferential direction of the substrate; and/or the fourth electrode is configured to start from the third electrode, extend in the circumferential direction of the substrate, and then be disposed close to the fifth electrode.

17. The heater of claim 11, wherein the sixth electrode is configured to be disposed proximate to the third electrode after extending in the circumferential direction of the substrate beginning with the fifth electrode.

18. The heater of claim 11, wherein the conductive element further comprises a seventh electrode, the first electrode, the second electrode, and the seventh electrode simultaneously feeding electrical power to the plurality of electrically heated film layers;

The seventh electrode is configured to extend in the circumferential direction of the substrate and to remain in contact with at least one of the plurality of electrically heated film layers to form an electrical connection.

19. The heater of claim 11, wherein the third electrode and the fifth electrode are configured as strip-shaped electrodes extending in the axial direction of the substrate; and/or the fourth electrode and the sixth electrode are configured as arc-shaped electrodes extending in the circumferential direction of the base body.

20. An aerosol-generating device, comprising:

a housing assembly;

the heater of any one of claims 1-19, disposed within the housing assembly;

and the battery cell is used for providing electric power.