CN115606866A

CN115606866A - Heating element and aerosol-generating device

Info

Publication number: CN115606866A
Application number: CN202211132175.9A
Authority: CN
Inventors: 梁峰; 郭玉; 杜贤武; 李欢喜; 刘小力; 冼小毅; 邓原冰
Original assignee: Shenzhen Maishi Technology Co Ltd
Current assignee: Shenzhen Maishi Technology Co Ltd
Priority date: 2022-09-16
Filing date: 2022-09-16
Publication date: 2023-01-17
Also published as: WO2024055719A1

Abstract

The present disclosure provides a heating assembly and an aerosol-generating device. The heating assembly comprises a containing structure, a plurality of heating films and a power supply assembly; the containment structure having a proximal opening for containing the aerosol-generating article therethrough and radiating infrared light when heated to heat the aerosol-generating article; the heating films are arranged on the containing structure at intervals along the length direction of the containing structure and used for heating the containing structure when electrified; each heating film is distributed in a linear shape; the power supply assembly comprises at least three electrodes; the at least three electrodes are respectively coupled with the power supply assembly and arranged at the first end and/or the second end of the accommodating structure; and every two electrodes are in a group and are electrically connected with one heating film so as to supply power to the corresponding heating film. The heating component can realize segmented heating, ensures the sustained release and the smoking taste of aerosol, and avoids the phenomenon of over-high or over-low local temperature; meanwhile, the energy consumption of the heating assembly is reduced.

Description

Heating element and aerosol-generating device

Technical Field

The invention relates to the technical field of electronic atomization, in particular to a heating assembly and an aerosol generating device.

Background

Due to the conventional aerosol generating articles, a large amount of harmful substances are generated during the combustion process; the aerosol generating device which is not combusted by heating can atomize aerosol generating products to generate aerosol only by heating a special heating assembly to about 350 ℃, and harmful substances are greatly reduced; compared with other electronic atomising devices, heating a non-combustible aerosol-generating device controls the baking temperature of the aerosol-generating article by controlling the temperature of the heating assembly to form an aerosol, which is more popular with consumers.

The form of the heating element may be divided into a central heating element inserted into the aerosol-generating article and a peripheral heating element wrapped around the aerosol-generating article. At present, whether central heating or peripheral heating generally adopts a mode that a heating element is integrally raised to a certain temperature, and an aerosol generating product is heated along the axial length direction of the aerosol generating product, so that the problem is brought that the heating element cannot be controlled according to the actual temperature field requirement of the heating element to respectively control the aerosol generating product along the axial direction, for example, the aerosol generating product is controlled in two sections, and particularly if non-sectional control integrated heating is adopted for the aerosol generating product with a longer length, the phenomenon that the local temperature is too high or too low easily occurs, and the taste of the aerosol is influenced.

Disclosure of Invention

The heating assembly and the aerosol generating device provided by the disclosure aim to solve the problem that the existing heating assembly cannot control the heating body to respectively control the aerosol generating product along the axial direction according to the actual temperature field requirement of the heating body, for example, the heating assembly is divided into two sections for control, and particularly, if the aerosol generating product with longer length is integrally heated by non-sectional control, the phenomenon that the local temperature is too high or too low easily occurs, and the taste of the aerosol is influenced.

In order to solve the technical problem, the technical scheme adopted by the disclosure is as follows: a heating assembly is provided. The heating assembly comprises an accommodating structure, a plurality of heating films and a power supply assembly; wherein the containment structure has a proximal opening for containing an aerosol-generating article therethrough and radiating infrared light when heated to heat the aerosol-generating article; the heating films are arranged on the containing structure at intervals along the length direction of the containing structure and used for heating the containing structure when power is supplied; wherein each heating film is linearly distributed; the power supply assembly comprises at least three electrodes; the at least three electrodes are respectively coupled with the power supply assembly and arranged at the first end and/or the second end of the accommodating structure; and every two electrodes are electrically connected with one heating film in a group so as to supply power to the corresponding heating film.

Wherein each of the heating films includes at least one heating wire.

Wherein each heating film comprises at least two heating wires connected in parallel.

Wherein at least some of the at least two heater wires are curved.

Wherein, the curve is a U-shaped curve or an S-shaped curve.

Wherein the plurality of heating films includes a first heating film and a second heating film;

the power supply assembly comprises a first electrode, a second electrode, a third electrode and a fourth electrode; the first electrode and the second electrode are arranged at the first end of the accommodating structure and are respectively and electrically connected with the first heating film; the third electrode and the fourth electrode are arranged at the second end of the accommodating structure and are respectively and electrically connected with the second heating film.

Two ends of a plurality of heating wires of the first heating film respectively extend to the position, close to the first end, of the accommodating structure so as to be electrically connected with the first electrode and the second electrode respectively;

two ends of the plurality of heating wires of the second heating film respectively extend to the position, close to the second end, of the accommodating structure so as to be electrically connected with the third electrode and the fourth electrode respectively.

Wherein each of the first electrode, the second electrode, the third electrode, and the fourth electrode comprises a coupling portion and a connecting portion;

the coupling part is arranged at the end part of the accommodating structure and is used for coupling with a power supply component so as to supply power to the corresponding heating film; the connecting portion is electrically connected with the coupling portion and extends in a direction departing from the coupling portion along the length direction of the accommodating structure so as to be electrically connected with one end portion of each heating wire in the adjacent heating film.

Wherein the coupling part is configured as an arc-shaped structure extending in a circumferential direction of the receiving structure.

Each heating film comprises a first heating wire and a second heating wire which are arranged at intervals; the first heating line is a curve extending along the circumferential direction of the accommodating structure; the second heater wire surrounds a peripheral contour of the first heater wire.

The second heating wire comprises a first part, a second part and a third part which are connected in sequence; the first part is positioned on one side of the first heating wire and the third part is positioned on the other side of the first heating wire along the circumferential direction of the accommodating structure; the first part is a curve extending along the circumferential direction of the accommodating structure; the third part is a straight line extending along the length direction of the accommodating structure;

the second portion is located on one side of the first heating wire close to the central area of the accommodating structure, and the second portion is a straight line extending along the circumferential direction of the accommodating structure.

The first part and the first heating wire are both U-shaped curves, and the size of each U-shaped structure is the same.

the power supply assembly comprises a first electrode, a second electrode and a third electrode; the first electrode is arranged at the first end of the accommodating structure and is electrically connected with the first heating film; the second electrode is arranged at the second end of the accommodating structure and is electrically connected with the second heating film; the third electrode and the first electrode or the second electrode are positioned at the same end of the accommodating structure and are respectively electrically connected with the first heating film and the second heating film.

Wherein the first electrode and/or the second electrode is an arc-shaped structure extending along a circumferential direction of the receiving structure;

the third electrode includes a common coupling part and a common connection part; the public coupling part and the first electrode or the second electrode are positioned at the same end of the accommodating structure and are used for being coupled with a power supply component; public connecting portion with public coupling portion electricity is connected, and follows the length direction orientation of acceping structure deviates from public coupling portion's direction extends, in order respectively with first heating film with the second heating film electricity is connected.

The plurality of heating lines of the first heating film and the plurality of heating lines of the second heating film are curves extending along the length direction of the accommodating structure.

Wherein the first heating film further comprises a first connection part and a second connection part; a first end of each heating wire in the first heating film is respectively connected with the first connecting part so as to be electrically connected with the first electrode through a part of the first connecting part; a second end of each heating wire in the first heating film is connected to the second connection portion, respectively, to be electrically connected to the third electrode through a portion of the second connection portion; and/or the presence of a gas in the gas,

the second heating film further includes a third connection part and a fourth connection part; a first end of each heating wire in the second heating film is connected to the third connection part, respectively, to be electrically connected to the third electrode through a portion of the third connection part; the second end of each heating wire in the second heating film is connected to the fourth connection portion, respectively, to be electrically connected to the fourth electrode through a portion of the fourth connection portion.

Wherein, the accommodating structure includes:

a substrate having a hollow tubular shape for housing the aerosol-generating article;

a radiation layer disposed on an inner surface of the sidewall of the substrate for radiating infrared light when heated to heat the aerosol-generating article; wherein, the heating film is arranged on one side of the substrate, which is far away from the radiation layer.

Wherein, the accommodating structure includes:

a radiation layer disposed on an outer surface of the sidewall of the substrate for radiating infrared light when heated to heat the aerosol-generating article; wherein, the heating film is arranged on one side of the radiation layer, which is far away from the substrate.

Wherein, the accommodating structure includes:

the basal body is in a hollow tubular shape; and the matrix comprises a body and an infrared radiation material dispersed in the body; the substrate is for receiving an aerosol-generating substrate and, when heated, radiates infra-red light to heat the aerosol-generating article; wherein, the heating film is arranged on the outer surface of the side wall of the substrate.

Wherein the substrate is a transparent substrate.

In order to solve the technical problem, another technical scheme adopted by the disclosure is as follows: an aerosol-generating device is provided. The aerosol-generating device comprises: a heating assembly and a power supply assembly; wherein, the heating assembly is the heating assembly related to above; the power supply assembly is electrically connected with the heating assembly and used for supplying power to the heating assembly.

The beneficial effect of this disclosed embodiment is different from prior art: the heating assembly is provided with a containing structure and a plurality of heating films, the plurality of heating films are arranged on the containing structure at intervals along the length direction of the containing structure, each heating film is distributed in a linear shape, so that the containing structure is heated when the plurality of heating films are electrified, the containing structure is heated to radiate infrared rays, and the aerosol generating product contained in the containing structure is heated and atomized by utilizing the infrared rays. Wherein, through infrared heating's mode, because the infrared ray has certain penetrability, does not need the medium, heating efficiency is higher, can effectively improve aerosol and generate preheating efficiency of goods, and can effectively reduce the inside and outside temperature difference of aerosol generation goods to it is more even to the toast of aerosol generation goods, avoids appearing local high temperature and leads to aerosol generation goods to be burnt problem. In addition, through setting up the power supply unit, make the power supply unit include at least three electrode, and every two electrodes are a set of and are connected with a heating film electricity, in order to supply power to the heating film that corresponds through this electrode group, thereby make a plurality of heating films that the interval set up can independently receive the electric power of power supply unit through the electrode group that corresponds, in order to constitute a plurality of heating regions along containment structure's length direction on containment structure, realize the segmentation heating of heating unit along its length direction, and then make this heating unit can control the heating temperature of different heating regions according to actual temperature field demand, in order to guarantee the uniformity of taste before guaranteeing the continuous release of aerosol and user's suction, avoid appearing local temperature too high or the phenomenon of crossing excessively. In addition, at least three electrodes for coupling with the power supply assembly are arranged at the first end and/or the second end of the accommodating structure, power can be supplied to the heating films respectively, the segmented heating function of the heating assembly is realized, electrodes coupled with the power supply do not need to be additionally arranged in the middle area of the accommodating structure along the length direction of the accommodating structure, the problem that the electrodes in the middle area of the accommodating structure conduct heat to the outside due to contact with other metals is effectively avoided, the energy consumption of the heating assembly is further reduced, the temperature consistency of the middle area of the accommodating structure and other areas nearby is ensured, the atomization effect of aerosol generating products corresponding to the middle area of the accommodating structure is improved, and the smoking taste and experience of a user are enhanced.

Drawings

Figure 1 is a schematic structural diagram of an aerosol-generating system provided by an embodiment of the present disclosure;

figure 2 is a schematic structural view of an aerosol-generating device provided by an embodiment of the present disclosure;

fig. 3 is a transverse cross-sectional view of a heating assembly provided in accordance with a first embodiment of the present disclosure;

FIG. 4 is a perspective view of a heating assembly provided by one embodiment of the present disclosure;

FIG. 5a is a disassembled view of the heating assembly of FIG. 4 under a first vision;

FIG. 5b is a disassembled view of the heating assembly shown in FIG. 4 under a second vision;

FIG. 6 is a transverse cross-sectional view of a heating assembly provided in an exemplary embodiment of the present disclosure;

figure 7 is a schematic view of an aerosol-generating article housed in a containment structure provided by an embodiment of the present disclosure;

figure 8 is a schematic view of an aerosol-generating article housed in a containment structure provided by another embodiment of the present disclosure;

FIG. 9a is a schematic view of the heating films and the power supply assembly shown in FIG. 4 being spread along the circumferential direction of the receiving structure;

FIG. 9b is a schematic diagram of the first heater film and the first and second electrodes of FIG. 9a;

FIG. 10 is a schematic view of a plurality of heating films and a power supply assembly provided in accordance with another embodiment after deployment;

fig. 11 is a perspective view of a heating assembly provided in accordance with another embodiment of the present disclosure;

FIG. 12 is a disassembled schematic view of the heating assembly shown in FIG. 11;

FIG. 13 is a schematic view of the heating films and power supply assemblies of FIG. 11 being deployed in a circumferential direction of the containment structure;

FIG. 14 is an expanded schematic view of a plurality of heating films and a power supply assembly provided in accordance with yet another embodiment;

fig. 15 is a transverse cross-sectional view of a heating assembly provided in accordance with a second embodiment of the present disclosure;

FIG. 16 is a transverse cross-sectional view of a heating assembly provided in accordance with another embodiment of the present disclosure;

fig. 17 is a transverse cross-sectional view of a heating assembly provided in a third embodiment of the present disclosure.

Description of reference numerals:

an aerosol-generating device 1; an aerosol-generating article 2; a heating assembly 10; a power supply component 20; a housing structure 11; a base 111; a receiving cavity 110; a first end a; a second end b; a radiation layer 112; a first insulating layer 113; a second insulating layer 114; heating the film 12; the first heating film 12a; the second heating film 12b; a first heating wire 121; a second heating wire 122; the first connection portion 123; a second connecting portion 124; a third connecting portion 125; a fourth connecting portion 126; a power supply assembly 13; first electrodes 131/136; a second electrode 132/137; third electrodes 133/138; a fourth electrode 134; a coupling portion 135a; a connecting portion 135b; a common coupling portion 139a; the common connection portion 139b.

Detailed Description

The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.

The terms "first", "second", "third" in the present disclosure are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of the feature. In the description of the present disclosure, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specifically limited otherwise. All directional indicators (such as up, down, left, right, front, rear \8230;) in the disclosed embodiments are only used to explain the relative positional relationship between the components at a particular pose (as shown in the figures), the motion, etc., and if the particular pose changes, the directional indicator changes accordingly. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the disclosure. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

The present disclosure is described in detail below with reference to the drawings and examples.

Referring to fig. 1, fig. 1 is a schematic view of an aerosol generating system according to an embodiment of the present disclosure;

in the present embodiment, there is provided an aerosol-generating system comprising an aerosol-generating device 1 and an aerosol-generating article 2 housed within the aerosol-generating device 1. Wherein the aerosol-generating device 1 is used to heat and atomise the aerosol-generating article 2 to form an aerosol for inhalation by a user. The aerosol generating device 1 can be used in the technical fields of medical treatment, cosmetology, health care, electronic atomization and the like; the specific structure and function of which can be seen in the description of the aerosol-generating device 1 provided in the examples below. The aerosol-generating article 2 may employ a solid substrate and may comprise one or more of a powder, granules, shreds of pieces, strips or flakes of one or more plant leaves such as tobacco, vanilla leaves, tea leaves, mint leaves and the like; alternatively, the solid matrix may contain additional volatile flavour compounds to be released when the matrix is heated. Of course, the aerosol-generating article 2 may also be a liquid or paste-like substrate, such as oils, liquid medicines, etc. to which the aroma component is added.

Referring to fig. 2, fig. 2 is a schematic view of an aerosol-generating device 1 according to an embodiment of the disclosure;

in the present embodiment, an aerosol-generating device 1 is provided, the aerosol-generating device 1 comprising a heating assembly 10 and a power supply assembly 20. Wherein the heating assembly 10 is for receiving and, when energised, atomising the aerosol-generating article 2 to produce an aerosol; the specific structure and function of the heating assembly 10 can be seen in the heating assembly 10 according to any of the following embodiments. The power supply assembly 20 is electrically connected to the heating assembly 10 for supplying power to the heating assembly 10. The power supply component 20 may specifically be a lithium ion battery.

Referring to fig. 3 and 4, fig. 3 is a transverse cross-sectional view of a heating element according to a first embodiment of the present disclosure; FIG. 4 is a perspective view of a heating assembly provided by an embodiment of the present disclosure; in a first embodiment, a heating assembly 10 is provided. The heating assembly 10 includes a housing structure 11, a plurality of heating films 12, and a power supply assembly 13.

As shown in fig. 3, the receiving structure 11 includes a base 111 and a radiation layer 112. The base 111 is hollow and tubular, and the base 111 has a containing cavity 110, and a proximal opening and a distal opening which are communicated with the containing cavity 110, and the proximal opening and the distal opening are oppositely arranged along the length direction C of the base 111; the following defines the proximal opening at the first end a of the receiving structure 11 and the distal opening at the second end b of the receiving structure 11. The receiving cavity 110 is for receiving an aerosol-generating article 2; the aerosol-generating article 2 is specifically received within the receiving cavity 110 or removed from the receiving cavity 110 through the proximal end opening along the length direction C of the receiving cavity 110. Wherein the proximal opening is the end of the heating assembly 10 near the mouthpiece. Specifically, the base 111 may be a hollow tubular structure, and the hollow tubular structure is surrounded to form the receiving cavity 110. Specifically, the outer diameter of the base 111 is uniform along the length direction C thereof; the base 111 may be a hollow cylindrical shape.

Specifically, the substrate 111 may be made of an insulating material, for example, the substrate 111 may be a quartz tube, a ceramic tube, a mica tube, or the like. Preferably, the substrate 111 may be a transparent quartz tube to facilitate the infrared rays to pass through. Of course, the substrate 111 may be made of non-insulating material, such as stainless steel, aluminum, etc.

The radiation layer 112 is disposed on an inner surface of a sidewall of the base 111, and is configured to radiate infrared rays when heated, so as to heat and atomize the aerosol-generating article 2 accommodated in the accommodating cavity 110 by using the infrared rays. Above-mentioned utilize infrared heating aerosol to generate goods 2, because the infrared ray has certain penetrability, does not need the medium, heating efficiency is higher, can effectively improve aerosol and generate preheating efficiency of goods 2, reduces the inside and outside temperature difference of aerosol generation goods 2 to make the toast of aerosol generation goods 2 more even, avoid appearing local high temperature and lead to aerosol generation goods 2 by the problem of singeing. Meanwhile, by disposing the radiation layer 112 on the inner surface of the base 111, the infrared rays radiated by the radiation layer 112 can be directly radiated to the aerosol-generating article 2 without passing through the base 111, and the utilization rate of the infrared rays is high.

The radiation layer 112 may be formed on the entire inner surface of the sidewall of the substrate 111 by silk-screen printing, sputtering, coating, printing, or the like. The radiation layer 112 may be specifically an infrared layer, and the material of the infrared layer includes at least one of high infrared emissivity materials such as perovskite system, spinel system, carbide, silicide, nitride, oxide, and rare earth system material.

Referring to fig. 3 to 5b, fig. 5a is a disassembled view of the heating assembly shown in fig. 4 under a first vision; FIG. 5b is a disassembled view of the heating assembly shown in FIG. 4 at a second vision; the heating films 12 are disposed on a side of the substrate 111 away from the radiation layer 112, and are disposed on the receiving structure 11 at intervals along a length direction C of the receiving structure 11, for generating heat when energized to heat the radiation layer 112, so that the radiation layer 112 is heated to radiate infrared rays. Specifically, the heating film 12 uses a resistive material that releases joule heat by being energized, such as a thick film printed resistive layer, a thin film printed resistive layer, a nano resistive layer, or the like.

As shown in fig. 3, when the substrate 111 is an insulating substrate 111, the plurality of heating films 12 are specifically disposed on a surface of the substrate 111 facing away from the radiation layer 112, and heat generated by the heating films 12 is conducted to the radiation layer 112 through the substrate 111 to heat the radiation layer 112. It is understood that in this embodiment, the heating film 12 is directly disposed on the surface of the housing structure 11, i.e., the heating film 12 is in direct contact with the surface of the housing structure 11. When the substrate 111 is a non-insulating substrate 111, it is preferable that the substrate 111 is made of a metal material, such as stainless steel, as shown in fig. 6, and fig. 6 is a transverse sectional view of the heating assembly 10 according to an embodiment of the present disclosure; a first insulating layer 113 resistant to high temperature is further formed on a surface of the base 111 on a side away from the radiation layer 112, and the heating film 12 is specifically arranged on a surface of the first insulating layer 113 on a side away from the base 111 to prevent a short circuit between the heating film 12 and the base 111; at this time, heat generated from the heating film 12 is thermally conducted to the radiation layer 112 through the first insulating layer 113 and the base 111 in order to heat the radiation layer 112. It is understood that, in this embodiment, the heating film 12 is disposed on the housing structure 11 through the first insulating layer 113, i.e., the heating film 12 is in indirect contact with the surface of the housing structure 11. In one embodiment, the first insulating layer 113 may be a glaze layer.

In this embodiment, to increase the heat utilisation of the heating assembly 10 to further increase the heating efficiency of the aerosol-generating article 2; referring to figure 7, figure 7 is a schematic view of an aerosol-generating article 2 housed in a containment structure 11 according to an embodiment of the present disclosure; when the aerosol-generating article 2 is received in the receiving cavity 110, the aerosol-generating article 2 is in direct contact with an inner surface of the side wall of the receiving structure 11 (e.g., the surface of the radiation layer 112). In this way, while infrared radiation is radiated into the aerosol-generating article 2 to heat the aerosol-generating article 2, the heat of the heating film 12 is conducted to the aerosol-generating article 2 through the housing structure 11 (e.g., the radiation layer 112) to further heat the aerosol-generating article 2 by the heat, so that the heat utilization rate is improved, and the atomization efficiency and the aerosol generation speed are increased.

Of course, in other embodiments, as shown in fig. 8, fig. 8 is a schematic view of an aerosol-generating article 2 housed in a housing structure 11 according to another embodiment of the present disclosure; the aerosol-generating article 2 may also be spaced from the inner surface of the side wall of the receiving structure 11 (e.g., the radiation layer 112) when the aerosol-generating article 2 is received in the receiving cavity 110 to prevent the radiation layer 112 from being scratched or scratched by the aerosol-generating article 2. It will be appreciated that in this embodiment, the aerosol-generating article 2 is heated primarily by infrared radiation. Further, the surface of the heating film 12 or/and the radiation layer 112 may be further coated with a protective layer, and the protective layer may specifically be a glaze layer. Wherein the thickness of the radiation layer 112 may be 10-100 microns. Preferably, the thickness of the radiation layer 112 is 20-40 microns. In this embodiment, the radiation layer 112 can be formed by thick film printing. The material of the radiation layer 112 may include one or more of black silicon, cordierite, transition metal oxide series spinel, rare earth oxide, ion co-doped perovskite, silicon carbide, zircon, and boron nitride. Of course, the thickness of the radiation layer 112 may also be 1-10 microns; preferably, the thickness of the radiation layer 112 is 1-5 microns. In this embodiment, the radiation layer 112 is embodied as a thin film coating. The radiation layer 112 material may be CrC, tiCN, diamond-like carbon film (DLC).

With reference to fig. 9a, fig. 9a is a schematic view of the heating films and the power supply assembly shown in fig. 4 being spread along the circumferential direction of the accommodating structure 11; each heater film 12 includes at least one heater wire. In an embodiment, each heating film 12 includes at least two

heating wires

121, 122 connected in parallel, and each heating wire 121/122 extends in a linear shape along a length direction C (see fig. 13) or a circumferential direction (see fig. 9 a) of the accommodating structure 11. It can be understood that the heating wire 121 has a length dimension that is much greater than a width dimension.

In one embodiment, as shown in FIG. 9a, at least one heating wire 121/122 of the at least two

heating wires

121, 122 is curved. Specifically, at least two

heater wires

121 and 122 in each heater film 12 are curved. The curve may be a U-shaped curve, or an S-shaped curve. Of course, in other embodiments, each

heating wire

121, 122 may also be any other irregularly bent line, such as a combination of S-shaped and U-shaped curves; the present disclosure is not so limited.

As shown in connection with fig. 4 and 9a, the power supply assembly 13 includes at least three electrodes; at least three electrodes are respectively coupled to the power supply module 20, and each two electrodes form an independent power supply group as a group and are electrically connected to one heating film 12 of the plurality of heating films 12 to supply power to the corresponding heating film 12 through the power supply group, so that the power and heating time of each power supply group are respectively controlled by the electric control board of the aerosol generating device 1, the plurality of heating films 12 arranged at intervals can independently receive the electric power of the power supply module 20 through the corresponding power supply group, so as to form a plurality of heating regions on the accommodating structure 11 along the length direction C of the accommodating structure 11, thereby realizing the sectional heating of the heating module 10 along the length direction C, further enabling the heating module 10 to control the heating temperatures of different heating regions according to the actual temperature field requirement, so as to ensure the continuous release of the aerosol and the consistency of the mouthfeel before and after the suction of a user, and avoid the phenomenon of over-high or over-low local temperature. Wherein, each heating film 12 is correspondingly connected with two electrodes. Each electrode may be made of a metal material having high conductivity, such as silver, gold, copper, or an alloy containing gold, silver, and copper.

Specifically, as shown in fig. 4, at least three electrodes are disposed at the first end a and/or the second end b of the receiving structure 11; by arranging at least three electrodes for coupling with the power supply component 20 at the first end a and/or the second end b of the accommodating structure 11, power can be supplied to the plurality of heating films 12 respectively, the segmented heating function of the heating component 10 is realized, and electrodes coupled with the power supply do not need to be additionally arranged in the middle area of the accommodating structure 11 along the length direction C, so that the problem that the electrodes in the middle area of the accommodating structure 11 conduct heat to the outside due to contact with other metals is effectively avoided, the energy consumption of the heating component 10 is reduced, the temperature consistency between the middle area of the accommodating structure 11 and other areas nearby is ensured, the atomization effect of the aerosol generating product 2 corresponding to the middle area of the accommodating structure 11 is improved, and the smoking taste and experience of a user are enhanced.

In one embodiment, with reference to fig. 4 to 9a, the number of the plurality of heating films 12 is two, and the two heating films 12 are a first heating film 12a and a second heating film 12b; the first heating film 12a and the second heating film 12b are disposed at intervals along the length direction C of the housing structure 11, and the first heating film 12a is disposed at a position close to the first end a of the housing structure 11. The second heating film 12b is disposed at a position close to the second end b of the housing structure 11. Specifically, the first heating film 12a and the second heating film 12b are disposed on two sides of a central cross section of the accommodating structure 11, and are symmetrically distributed along the central cross section. The central cross section of the receiving structure 11 refers to a transverse cross section of the receiving structure 11, which passes through a midpoint of the receiving structure 11 along the length direction C thereof.

Specifically, as shown in fig. 9a, the first heating film 12a and/or the second heating film 12b includes two heating wires arranged at intervals. The first heating film 12a will be described below by taking as an example two heating lines including a first heating line 121 and a second heating line 122 provided at an interval. The first heating wire 121 is a U-shaped curve extending along the circumferential direction of the receiving structure 11, and each U-shaped opening of the U-shaped curve is oriented parallel to the length direction C of the receiving structure 11. The second heating wire 122 surrounds the outer circumference of the first heating wire 121 in a delta-shaped configuration.

Specifically, referring to fig. 9b, fig. 9b is a schematic structural view of the first heating film and the first and second electrodes in fig. 9a; the second heating wire 122 includes a first portion 122a, a second portion 122b, and a third portion 122c. One end of the first portion 122a is electrically connected to the first electrode 131, and the other end is connected to the second portion 122 b; one end of the third portion 122c is electrically connected to the second electrode 132, and the other end is electrically connected to the second portion 122 b.

In an embodiment, along the circumferential direction of the receiving structure 11, the first portion 122a of the second heating wire 122 is disposed on one side of the first heating wire 121, the third portion 122C of the second heating wire 122 is disposed on the other side of the first heating wire 121, and the third portion 122C of the second heating wire 122 extends along the length direction C of the receiving structure 11 toward the direction close to the first end a of the receiving structure 11 and is linear.

The first portion 122a of the second heating wire 122 is a U-shaped curve extending in the circumferential direction of the housing structure 11. Specifically, the first portion 122a and the first heating wire 121 are located at the same height position along the length direction of the accommodating structure 11; and the first portion 122a and the first heating wire 121 are U-shaped curves, and the size of each U-shaped structure is the same.

The second portion 122b of the second heating wire 122 is located on one side of the first heating wire 121 close to the central region of the receiving structure 11, and the second portion 122b extends linearly in the circumferential direction of the receiving structure 11 and is configured in an arc structure.

The second heating film 12b includes two heating lines spaced apart from each other in a similar manner to the first heating film 12 a. It will be understood by those skilled in the art that the third portion 122c of the second heating wire 122 in the second heating film 12b extends toward a direction close to the second end b of the housing structure 11.

Referring to fig. 9a, the power supply assembly 13 includes four electrodes, which are a first electrode 131, a second electrode 132, a third electrode 133 and a fourth electrode 134. The first electrode 131 and the second electrode 132 are disposed at the first end a of the receiving structure 11 and are electrically connected to the first heating film 12a, respectively. The third electrode 133 and the fourth electrode 134 are disposed at the second end b of the receiving structure 11, and are electrically connected to the second heating film 12b, respectively.

In one embodiment, both ends of the first heating wire 121 of the first heating film 12a respectively extend to positions of the receiving structure 11 near the first end a to be electrically connected with the first electrode 131 and the second electrode 132 respectively. Both ends of the second heater wire 122 of the first heater film 12a also extend to positions close to the first end a of the housing structure 11, respectively, to be electrically connected to the first electrode 131 and the second electrode 132, respectively, so as to electrically connect the plurality of heater wires of the first heater film 12a to the first electrode 131 and the second electrode 132, respectively.

Both ends of the first heater wire 121 of the second heater film 12b extend to positions near the second end b of the housing structure 11, respectively, to be electrically connected to the third electrode 133 and the fourth electrode 134, respectively. Both ends of the second heater wire 122 of the second heater film 12b also extend to a position close to the second end b of the housing structure 11 to be electrically connected to the third electrode 133 and the fourth electrode 134, respectively, so that the plurality of heater wires of the second heater film 12b are electrically connected to the third electrode 133 and the fourth electrode 134, respectively.

In a specific embodiment, in conjunction with fig. 9a, each of the first electrode 131, the second electrode 132, the third electrode 133, and the fourth electrode 134 includes a coupling portion 135a and a connection portion 135b. The coupling part 135a is disposed at an end of the receiving structure 11, and is coupled to the power supply module 20 to supply power to the corresponding heating film 12. Specifically, the coupling portion 135a is configured in an arc-shaped structure extending in the circumferential direction of the housing structure 11. The coupling portions 135a of the two electrodes located at the same end of the receiving structure 11 are spaced apart from each other.

Since the coupling portion 135a coupled to the power supply module 20 is disposed at the end of the receiving structure 11, and the receiving structure 11 is not provided with a coupling portion to be coupled to the power supply module 20 in the middle region along the length direction C thereof, the problem that the coupling portion located in the middle region of the receiving structure 11 contacts other metals to conduct heat to the outside is effectively avoided, and thus, the power consumption of the heating module 10 is reduced, the temperature consistency between the middle region of the receiving structure 11 and other regions in the vicinity is ensured, and the atomization effect of the aerosol-generating product 2 corresponding to the middle region of the receiving structure 11 is improved.

The connection portion 135b is electrically connected to the coupling portion 135a, and protrudes in a direction away from the coupling portion 135a connected thereto along the length direction C of the receiving structure 11 to be electrically connected to one end portion of each heating line of the adjacent heating film 12.

Of course, in other embodiments, referring to fig. 10, fig. 10 is a schematic view of a plurality of heating films and power supply assemblies provided in another embodiment after deployment; the

coupling portions

135a, and 135a of the first, second, third, and

fourth electrodes

131, 132, 133, 134 may also be located at the same end of the receiving structure 11. For example, the

coupling portions

135a, 133 and 134 of the first, second and

fourth electrodes

131, 132, 133 and 134 are located at the second end b of the receiving structure 11. In this embodiment, the connection portion 135b of the first electrode 131 and the connection portion 135b of the second electrode 132 may extend toward the first end a of the receiving structure 11 and be electrically connected to one end portion of each of the plurality of heater wires of the first heater film 12 a. Of course, in this embodiment, both ends of each heating line of the first heating film 12a extend in the circumferential direction of the housing structure 11, which is not limited by the present disclosure.

In another embodiment, referring to fig. 11 to 13, fig. 11 is a perspective view of a heating assembly provided in another embodiment of the present disclosure; FIG. 12 is a disassembled schematic view of the heating assembly shown in FIG. 11;

fig. 13 is a schematic view of the heating films and the power supply module shown in fig. 11 being spread in a circumferential direction of the housing structure. Another heating element 10 is provided, the heating element 10 being different from the heating element 10 provided in the first embodiment described above in that: the power supply assembly 13 includes a first electrode 136, a second electrode 137, and a third electrode 138.

As shown in fig. 11, the first electrode 136 is disposed at the first end a of the accommodating structure 11 and electrically connected to the first heating film 12 a. The first electrode 136 is embodied as an arc-shaped structure extending in the circumferential direction of the housing structure 11. The second electrode 137 is disposed at the second end b of the accommodating structure 11 and electrically connected to the second heating film 12b; the second electrode 137 is specifically an arc-shaped structure extending in the circumferential direction of the housing structure 11.

The third electrode 138 is located at the same end of the housing structure 11 as the first electrode 136 or the second electrode 137, and is electrically connected to the first heating film 12a and the second heating film 12b, respectively. It will be appreciated that one of the first electrode 136 and the third electrode 138 is electrically connected to the positive pole of the power supply, and the other is electrically connected to the negative pole of the power supply; the first electrode 136 and the second electrode 137 are both electrically connected to the positive or negative pole of a power supply.

Referring to fig. 13, the third electrode 138 particularly includes a common coupling portion 139a and a common connection portion 139b; the common coupling portion 139a is located at the same end of the receiving structure 11 as the first electrode 136 or the second electrode 137 for coupling with the power module 20. Specifically, the common coupling portion 139a may be located at the second end b of the receiving structure 11. The common connection part 139b is electrically connected to the common coupling part 139a, and the common connection part 139b extends in a direction departing from the common coupling part 139a along the length direction C of the receiving structure 11 to be electrically connected to the first and

second heating films

12a and 12b, respectively. Specifically, the common connection portion 139b extends to a position between the first heating film 12a and the second heating film 12 b.

Specifically, in this embodiment, as shown in fig. 13, the plurality of heater lines of the first heater film 12a and the plurality of heater lines of the second heater film 12b are curved lines extending in the longitudinal direction C of the housing structure 11, respectively. For example, the first heating wire 121 and the second heating wire 122 in the first heating film 12a and the first heating wire 121 and the second heating wire 122 in the second heating film 12b are U-shaped curves extending along the length direction of the housing structure 11, respectively, and each of the U-shaped curves has an opening facing perpendicular to the length direction C of the housing structure 11.

Specifically, the first heating wire 121 and the second heating wire 122 in the first heating film 12a are symmetrically distributed along the central axis M in the width direction of the first heating film 12a; and/or the first heating wire 121 and the second heating wire 122 in the second heating film 12b are symmetrically distributed along the central axis N in the width direction of the second heating film 12 b.

In a specific embodiment, as shown in fig. 13, a plurality of heater lines in the first heater film 12a, a first end of each heater line is connected together and then electrically connected to the first electrode 136. The second ends of each heater wire are connected together and then electrically connected to the end of the common connection 139b facing away from the common coupling 139 a. For example, the first end of the first heating wire 121 in the first heating film 12a and the first end of the second heating wire 122 in the first heating film 12a are connected together. The second end of the first heating wire 121 in the first heating film 12a and the second end of the second heating wire 122 in the first heating film 12a are connected together.

Specifically, the first heating film 12a may further include a first connection portion 123, the first connection portion 123 extending in a circumferential direction of the receiving structure 11, and the first end of the first heating wire 121 and the first end of the second heating wire 122 of the first heating film 12a are respectively connected to the first connection portion 123 to be electrically connected to the first electrode 136 through a portion of the first connection portion 123 protruding toward the first electrode 136.

Specifically, the first heating film 12a may further include a second connection portion 124, the second connection portion 124 extends along the circumferential direction of the receiving structure 11, and the second end of the first heating wire 121 and the second end of the second heating wire 122 of the first heating film 12a are respectively connected to the second connection portion 124 to be electrically connected to one end of the common connection portion 139b away from the common coupling portion 139a through a portion of the second connection portion 124.

Similarly, the second heating film 12b may further include a third connection portion 125, the third connection portion 125 extending in the circumferential direction of the housing structure 11, and the first end of the first heating wire 121 and the first end of the second heating wire 122 of the second heating film 12b are respectively connected to the third connection portion 125 to be electrically connected to the second electrode 137 through a portion of the third connection portion 125 protruding toward the second electrode 137.

Specifically, the second heating film 12b may further include a fourth connection portion 126, the fourth connection portion 126 extends along the circumferential direction of the receiving structure 11, and the second end of the first heating wire 121 and the second end of the second heating wire 122 of the second heating film 12b are respectively connected to the fourth connection portion 126 to be electrically connected to an end of the common connection portion 139b away from the common coupling portion 139a through a portion of the fourth connection portion 126. The fourth connecting portion 126 and the second connecting portion 124 are disposed adjacent to each other along the length direction C of the accommodating structure 11.

Of course, in other embodiments, referring to fig. 14, fig. 14 is a schematic view of a plurality of heating films and power supply assemblies provided in yet another embodiment after deployment; the first electrode 136 or the second electrode 137 may also include a coupling portion and a connection portion, and the coupling portion of the first electrode 136, the coupling portion of the second electrode 137, and the common coupling portion 139a of the third electrode 138 may also be located at the same end of the receiving structure 11. For example, the coupling portion of the first electrode 136, the common coupling portion 139a of the second electrode 137 and the third electrode 138 are all located at the second end b of the receiving structure 11. In this embodiment, the connection portion of the first electrode 136 may extend toward the first end a of the receiving structure 11 and be electrically connected to the first connection portion 123 of the first heating film 12 a.

In the heating module 10 provided in the above two embodiments, the accommodating structure 11 and the plurality of heating films 12 are provided, the plurality of heating films 12 are provided on the accommodating structure 11 at intervals along the longitudinal direction C of the accommodating structure 11, and each of the plurality of heating films 12 is linearly distributed, so that the accommodating structure 11 is heated by the plurality of heating films 12 when energized, and infrared rays are radiated, so that the aerosol-generating product 2 accommodated in the accommodating structure 11 is heated and atomized by the infrared rays. Wherein, through infrared heating's mode, because the infrared ray has certain penetrability, does not need the medium, heating efficiency is higher, can effectively improve aerosol and generate preheating efficiency of goods 2, and can effectively reduce aerosol and generate the inside and outside temperature difference of goods 2 to it is more even to the toast of aerosol generation goods 2, avoids appearing local high temperature and leads to aerosol generation goods 2 to be burnt problem. In addition, by providing the power supply module 13, the power supply module 13 includes at least three electrodes, and each two electrodes are a group and electrically connected to one heating film 12 of the plurality of heating films 12, so as to supply power to the corresponding heating film 12 through the electrode group, so that the plurality of heating films 12 arranged at intervals can independently receive the electric power of the power supply module 20 through the corresponding electrode group, so as to form a plurality of heating regions on the accommodating structure 11 along the length direction C of the accommodating structure 11, thereby realizing the sectional heating of the heating module 10, further enabling the heating module 10 to control the heating temperatures of different heating regions according to the actual temperature field requirements, so as to ensure the continuous release of aerosol and the consistency of the mouthfeel before and after the user sucks, and avoiding the phenomenon of over-high or over-low local temperature. In addition, at least three electrodes for coupling with the power supply component 20 are arranged at the first end a and/or the second end b of the accommodating structure 11, so that power can be supplied to the plurality of heating films 12 respectively, the segmented heating function of the heating component 10 is realized, electrodes coupled with the power supply do not need to be additionally arranged in the middle area of the accommodating structure 11 along the length direction of the accommodating structure, the problem that the electrodes in the middle area of the accommodating structure 11 conduct heat to the outside due to contact with other metals is effectively avoided, the energy consumption of the heating component 10 is further reduced, the temperature consistency between the middle area of the accommodating structure 11 and other areas nearby is ensured, the atomization effect of the aerosol generating product 2 corresponding to the middle area of the accommodating structure 11 is improved, and the smoking taste and experience of a user are enhanced.

In a second embodiment, referring to fig. 15, fig. 15 is a transverse cross-sectional view of a heating assembly 10 provided by a second embodiment of the present disclosure; a second heating element 10 is provided, which differs from the heating element 10 provided in the first embodiment described above in that: the radiation layer 112 is disposed on the outer surface of the sidewall of the substrate 111.

In this embodiment, as shown in fig. 15, when the radiation layer 112 is an insulating radiation layer 112, the heating film 12 is specifically disposed on a surface of the radiation layer 112 facing away from the substrate 111. The heat generated by the heating film 12 after being energized is directly conducted to the radiation layer 112, the radiation layer 112 is heated to generate infrared rays, and the infrared rays penetrate through the transparent substrate 111 and enter the accommodating cavity 110 to heat the aerosol-generating product 2 accommodated in the accommodating cavity 110. In this embodiment, the aerosol-generating article 2 may also be in direct contact with the transparent substrate 111 to conduct heat from the substrate 111 directly to the aerosol-generating article 2 for heating; alternatively, the aerosol-generating article 2 is spaced from the substrate 111.

When the radiation layer 112 is made of non-insulating material, as shown in fig. 16, fig. 16 is a transverse cross-sectional view of a heating element according to another embodiment of the present disclosure; to avoid short-circuiting of the heating film 12; the surface of the radiation layer 112 facing away from the substrate 111 is also provided with a second insulating layer 114, the second insulating layer 114 being located between the radiation layer 112 and the heating film 12.

In a third embodiment, referring to fig. 17, fig. 17 is a transverse cross-sectional view of a heating assembly provided by a third embodiment of the present disclosure; there is provided a further heating element 10, which differs from the heating element 10 provided in the previous embodiment in that: the housing structure 11 includes a base 111; the heating film 12 is disposed on the outer surface of the sidewall of the substrate 111.

The base 111 has a hollow tubular shape, and the base 111 includes a main body and an infrared radiation material dispersed in the main body. The body forms a receiving cavity 110 and a proximal end opening in communication with the receiving cavity 110 to receive the aerosol-generating article 2. The substrate 111 radiates infra-red light when heated to heat the aerosol-generating article 2. It is understood that in this embodiment, the substrate 111 itself is heated to radiate infrared light, and no infrared layer is added to the surface of the substrate 111. The substrate 111 may be a quartz tube.

Of course, in order to increase the amount of the radiated infrared rays to increase the heating rate, a radiated infrared layer may be further provided on the surface of the base 111; the details can be found in the above description, and are not described herein again.

The above are only embodiments of the present disclosure, and not intended to limit the scope of the present disclosure, and all equivalent structures or equivalent processes performed by the present disclosure and the contents of the attached drawings, or directly or indirectly applied to other related technical fields, are all included in the scope of the present disclosure.

Claims

1. A heating assembly, comprising:

a containment structure having a proximal opening for containing an aerosol-generating article therethrough and radiating infrared light when heated to heat the aerosol-generating article;

the heating films are arranged on the containing structure at intervals along the length direction of the containing structure and used for heating the containing structure when power is supplied; wherein each heating film is distributed in a linear shape;

a power supply assembly comprising at least three electrodes; the at least three electrodes are respectively coupled with the power supply assembly and arranged at the first end and/or the second end of the accommodating structure; and every two electrodes are electrically connected with one heating film in a group so as to supply power to the corresponding heating film.

2. The heating assembly of claim 1,

each of the heating films includes at least one heating wire.

3. The heating assembly of claim 2, wherein each of the heating films comprises at least two heating wires connected in parallel.

4. The heating assembly of claim 3,

at least a portion of the at least two heating lines are curvilinear.

5. The heating assembly of claim 4,

the curve is a U-shaped curve or an S-shaped curve.

6. A heating assembly according to any of claims 1-5,

the plurality of heating films includes a first heating film and a second heating film;

7. The heating assembly of claim 6,

two ends of a plurality of heating wires of the second heating film respectively extend to the position, close to the second end, of the accommodating structure so as to be electrically connected with the third electrode and the fourth electrode respectively.

8. The heating assembly of claim 7,

each of the first electrode, the second electrode, the third electrode, and the fourth electrode includes a coupling part and a connection part;

the coupling part is arranged at the end part of the accommodating structure and is used for coupling with a power supply component so as to supply power to the corresponding heating film; the connecting portion with the coupling portion electricity is connected to follow housing structure's length direction orientation deviates from the direction of coupling portion extends, with adjacent in the heating film each an end electricity of heater wire is connected.

9. The heating assembly of claim 8,

the coupling portion is configured as an arc-shaped structure extending in a circumferential direction of the receiving structure.

10. The heating assembly of claim 7,

11. The heating assembly of claim 10,

12. The heating assembly of claim 11,

the first portion and the first heating wire are both U-shaped curves, and the size of each U-shaped structure is the same.

13. A heating assembly according to any of claims 1-5,

14. The heating assembly of claim 13,

the first electrode and/or the second electrode are arc-shaped structures extending along the circumferential direction of the accommodating structure;

the third electrode includes a common coupling part and a common connection part; the common coupling part and the first electrode or the second electrode are positioned at the same end of the accommodating structure and are used for coupling with a power supply assembly; public connecting portion with public coupling portion electricity is connected, and follows the length direction orientation of acceping structure deviates from public coupling portion's direction extends, in order respectively with first heating film with the second heating film electricity is connected.

15. The heating assembly of claim 14,

the plurality of heating lines of the first heating film and the plurality of heating lines of the second heating film are curves extending in the length direction of the accommodating structure.

16. The heating assembly of claim 15,

the first heating film further includes a first connection portion and a second connection portion; a first end of each heating wire in the first heating film is connected with the first connection part respectively so as to be electrically connected with the first electrode through a part of the first connection part; a second end of each heating wire in the first heating film is connected to the second connection portion, respectively, to be electrically connected to the third electrode through a portion of the second connection portion; and/or the presence of a gas in the atmosphere,

the second heating film further includes a third connection part and a fourth connection part; a first end of each heating wire in the second heating film is connected to the third connection part, respectively, to be electrically connected to the second electrode through a portion of the third connection part; the second end of each heating wire in the second heating film is connected to the fourth connection portion, respectively, to be electrically connected to the third electrode through a portion of the fourth connection portion.

17. The heating assembly of claim 1,

the housing structure includes:

a substrate having a hollow tubular shape for receiving the aerosol-generating article;

18. The heating assembly of claim 1,

the housing structure includes:

a radiation layer disposed on an outer surface of the sidewall of the substrate for radiating infrared light when heated to heat the aerosol-generating article; wherein, the heating film is arranged on one side of the radiation layer deviating from the substrate.

19. The heating assembly of claim 1,

the housing structure includes:

20. A heating element as claimed in any of claims 17 to 19, wherein the substrate is a transparent substrate.

21. An aerosol-generating device, comprising:

a heating assembly as claimed in any one of claims 1 to 20;

and the power supply assembly is electrically connected with the heating assembly and used for supplying power to the heating assembly.