CN219373820U - Atomizer and aerosol generating device - Google Patents

Abstract

The present application relates to a nebulizer and aerosol-generating device, the nebulizer comprising: a heating component; the electromagnetic coil is wound outside the heating component and comprises a plurality of turns of sub-coils which are sequentially arranged along the axial direction of the electromagnetic coil; the moving piece is connected with at least one turn of sub-coil; the moving member controllably moves the partial coil along the axial direction of the electromagnetic coil to change the winding density of at least part of the electromagnetic coil. According to the atomizer, in the heating stage of the initial heating stage, the position of the movable part can be controlled to enable part of the electromagnetic coils to have larger winding density, so that the region of the heating component corresponding to the part of the electromagnetic coils forms a concentrated high-temperature region, and aerosol is facilitated to be generated rapidly. In the middle and later heat preservation stages of heating, the movable part can be controlled to drive part of the sub-coil to move in the axial direction so as to change the winding density of the electromagnetic coil, so that the magnetic field intensity generated by each part of the electromagnetic coil in the axial direction has higher consistency, and the temperature of the whole heating assembly is kept uniform.

Description

Atomizer and aerosol generating device

Technical Field

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

Background

The aerosol is a colloid dispersion system formed by dispersing and suspending solid or liquid small particles in a gaseous medium, and the aerosol can be absorbed by a human body through a respiratory system, so that a novel alternative absorption mode is provided for users. An aerosol-generating device refers to a device that forms an aerosol from a stored nebulizable medium by means of heating, ultrasound, etc. Nebulizable media comprises liquid, gel, paste or solid aerosol-generating substrates that are nebulized to deliver an inhalable aerosol to a user in place of conventional product forms and absorption patterns.

At present, most atomizing devices heat aerosol generating matrixes in a resistance heating mode, but the resistance heating mode has the defects of concentrated heat, easiness in dry burning, easiness in scorching, peculiar smell generation and the like, and is always a problem to be solved in the atomizing field. The electromagnetic heating technology is used as an emerging atomization technology, and has the advantages of high heating speed, no pollution, high heating efficiency and the like, so that the electromagnetic heating technology is preliminarily applied to an atomization device instead of resistance heating.

An atomizing device adopting an electromagnetic heating mode generally comprises an electromagnetic heating coil and a heating body, wherein the electromagnetic heating coil is electrified to generate a magnetic field, the heating body is positioned in the magnetic field generated by the electromagnetic heating coil to heat, the aerosol generating substrate is contacted with the heating body, and the heating body heats and atomizes the aerosol generating substrate. However, since the electromagnetic thermal efficiency of the electromagnetic atomization technology is slightly inferior to the electrothermal conversion efficiency of the resistor, the aerosol generation speed is slow at the same magnetic energy in the initial stage of heating, thereby bringing a limit to the further application thereof in the aerosol generating device.

Disclosure of Invention

Accordingly, it is necessary to provide an atomizer and an aerosol-generating device, which solve the problems of low thermal conversion efficiency and low aerosol-generating speed in the initial stage of heating in the electromagnetic atomization technique.

According to one aspect of the present application, there is provided a nebulizer comprising:

a heating component;

the electromagnetic coil is wound outside the heating component and comprises a plurality of turns of sub-coils which are sequentially arranged along the axial direction of the electromagnetic coil; and

the moving piece is connected with at least one turn of the sub-coil;

wherein the moving member controllably moves a portion of the sub-coils along the axial direction of the electromagnetic coil to change the winding density of at least a portion of the electromagnetic coil.

In one embodiment, a portion of the sub-coils in the electromagnetic coil are fixed relative to the heat generating component.

In one embodiment, the sub-coils located at opposite ends of the electromagnetic coil in the axial direction are fixed with respect to the heat generating components, respectively.

In one embodiment, the outer side wall of the heating component is provided with a limiting groove, and the sub-coil is limited in the limiting groove to be fixed relative to the heating component.

In one embodiment, the moving member includes:

a moving rod extending longitudinally along an axial direction of the electromagnetic coil; a kind of electronic device with high-pressure air-conditioning system

And one end of each moving part is connected with one of the sub-coils, and the other end of each moving part is connected with the moving rod.

In one embodiment, one end of the moving part is wound around the sub-coil.

In one embodiment, the moving member includes at least one moving rod, all the moving rods are arranged along the circumference of the electromagnetic coil at intervals, the moving member further includes a connecting ring, the connecting ring is sleeved outside the heating component, and all the moving rods are connected to the connecting ring.

In one embodiment, the atomizer further comprises a driving member, wherein the driving member is in transmission connection with the moving member and is used for driving the moving member to move along the axial direction of the electromagnetic coil.

In one embodiment, the atomizer further comprises a shielding layer, the shielding layer is coated outside the electromagnetic coil, the shielding layer is provided with a communication groove extending along the axial direction of the electromagnetic coil, and the moving rod extends out of the communication groove.

According to another aspect of the present application, there is provided an aerosol-generating device comprising the atomizer of the above embodiment, the aerosol-generating device further comprising a battery assembly electrically connected to the electromagnetic coil, the electromagnetic coil being configured to generate a magnetic field under the action of electrical energy of the battery assembly, the heat-generating assembly being configured to generate heat under the action of the magnetic field generated by the electromagnetic coil.

According to the atomizer, in the heating stage of the initial heating stage, the position of the movable part can be controlled to enable part of the electromagnetic coils to have larger winding density, and the magnetic field strength generated by the part of the electromagnetic coils is larger, so that the heating component forms a concentrated high-temperature area corresponding to the area of the part of the electromagnetic coils, and aerosol is facilitated to be generated rapidly. And in the heat preservation stage of heating middle and later stages, the movable part can be controlled to drive a partial sub-coil to move in the axial direction so as to change the winding density of the electromagnetic coil, so that the magnetic field intensity generated by each part of the electromagnetic coil in the axial direction has higher consistency, the temperature of each region of the whole heating component in the axial direction is kept uniform, and finally, a good heating effect is realized, and a user obtains better use experience.

Drawings

FIG. 1 is a schematic view of a nebulizer according to an embodiment of the application;

FIG. 2 is a schematic view of the structure of the inside of the shielding layer of the atomizer shown in FIG. 1;

FIG. 3 is a schematic view of the internal structure of the atomizer shown in FIG. 1;

fig. 4 is a schematic structural view of a coil support of the atomizer according to an embodiment of the present application.

Reference numerals illustrate:

100. an atomizer; 120. a heating component; 121. a heating element; 123. a thermal insulation layer; 125. a coil support; 125a, limit grooves; 127. a shielding layer; 127a, a communication groove; 140. an electromagnetic coil; 160. a moving member; 161. a moving rod; 163. a moving part; 165. a connecting ring;

200. an aerosol-generating substrate.

Detailed Description

In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is, however, susceptible of embodiment in many other forms than those described herein and similar modifications can be made by those skilled in the art without departing from the spirit of the application, and therefore the application is not to be limited to the specific embodiments disclosed below.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.

In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Referring to fig. 1 to 3, fig. 1 shows a schematic structural diagram of an atomizer according to an embodiment of the present application, fig. 2 shows a schematic structural diagram of an inside of a shielding layer of the atomizer according to an embodiment of the present application, and fig. 3 shows a schematic structural diagram of an inside of the atomizer according to an embodiment of the present application.

Embodiments of the present application provide an aerosol-generating device for heating an aerosol-generating substrate 200 to generate an aerosol for use by a user. In the following embodiments, the aerosol-generating substrate 200 has a cylindrical structure, and includes a substrate body and a coating layer circumferentially coated outside the substrate body, wherein the substrate body may include a tobacco filler, and the tobacco filler may have a regular or irregular shape such as a thread, a granule, a sheet, or the like. The coating layer may be formed of a coating material such as cigarette paper, so that the matrix body maintains a certain shape.

It will be appreciated that the material forming the matrix body is not limited to tobacco filler, and that the matrix body may be formed from a single material or may be formed from multiple materials in a blend of different proportions, and that other substances may be added to the matrix body to produce aerosols of different compositions and different flavors to meet the different needs of the user. The material forming the coating is not limited to cigarette paper, and in other embodiments, the coating may be formed of aluminum foil or other materials to meet different requirements.

With continued reference to fig. 1-3, the aerosol-generating device includes a nebulizer 100 and a battery assembly (not shown) that is electrically connected to the nebulizer 100 for supplying power to the nebulizer 100, wherein the nebulizer 100 can generate heat under the power of the battery assembly to heat the nebulizer aerosol-generating substrate 200 to generate aerosol for a user to use.

The atomizer 100 includes a heating element 120 and an electromagnetic coil 140, the heating element 120 is used for accommodating an aerosol-generating substrate, the electromagnetic coil 140 is wound outside the heating element 120 and is electrically connected with the battery assembly, the electromagnetic coil 140 can be heated under the action of the electric energy of the battery assembly to generate a magnetic field, and the heating element 120 in the magnetic field generates heat by magnetic induction, so as to heat the atomized aerosol-generating substrate 200 to generate aerosol.

Specifically, the heat generating component 120 has a hollow columnar structure, the central axis direction of the heat generating component 120 is the Z direction in fig. 1, and the circumferential direction of the heat generating component 120 is the phi direction in fig. 1. The heating component 120 forms a accommodating cavity, and the accommodating cavity extends lengthwise along the central axis direction of the heating component 120, and one end of the accommodating cavity in the axial direction is open, so that one end of the aerosol-generating substrate can be inserted into the accommodating cavity through the open end of the accommodating cavity. It is understood that the shape of the heat generating component 120 is not limited, and the cross section of the accommodating cavity may be regular or irregular, such as circular, triangular, etc.

Further, the heat generating component 120 includes a heat generating body 121, a heat insulating layer 123, and a coil holder 125. The heating element 121 is in a hollow column structure to form a containing cavity, and the heating element 121 may be a magnetic conduction heating element, a pure iron heating element, a stainless steel heating element, a low carbon steel heating element, and the like. It is to be understood that the specific material of the heating element 121 is not limited as long as it can generate heat under a magnetic field. The heat insulating layer 123 may be formed of a material having good heat insulating properties, such as aerogel, and the heat insulating layer 123 is coated on an outer circumferential surface of the heating body 121 to block heat generated by the heating body 121 from being emitted outwards. The coil support 125 is sleeved outside the heat insulation layer 123 to fix the heat insulation layer 123 and install the electromagnetic coil 140. It will be appreciated that the specific configuration of the heat generating component 120 is not so limited and may be set as desired to meet different heat generating requirements.

The electromagnetic coil 140 is formed by spirally extending at least one wire bundle along the axial direction of the heating component 120, the central axis of the electromagnetic coil 140 axially coincides with the center of the heating component 120, and the electromagnetic coil comprises a plurality of turns of sub-coils which are sequentially arranged along the axial direction of the electromagnetic coil, each turn of sub-coil circumferentially surrounds the heating component 120, and the surrounding angle of each turn of sub-coil is approximately 360 degrees. It is understood that in other embodiments, the central axis of the electromagnetic coil 140 may also be misaligned with the central axis of the heat generating component 120 based on the different shapes of the heat generating component 120.

As described in the background art, the conventional electromagnetic heating technology allows the temperature of each region of the heat generating component 120 in the axial direction to have a higher uniformity, but at the same time, the highest temperature is smaller, thereby reducing the aerosol generation rate at the initial stage of heating and improving the power consumption of the atomizer 100.

Based on the above technical problem, the atomizer 100 of the present application further includes a moving member 160, where the moving member 160 is connected to at least one turn of the sub-coil of the electromagnetic coil 140 and controllably moves the sub-coil along the axial direction of the electromagnetic coil 140 to change the winding density of at least a portion of the electromagnetic coil 140.

The term "winding density of the electromagnetic coil 140" means the number of turns of the sub-coil per unit length in the axial direction of the electromagnetic coil 140. The greater the winding density of the electromagnetic coil 140, the more turns of the sub-coils per unit length, the smaller the pitch between adjacent sub-coils, and the stronger the magnetic field strength generated by the electromagnetic coil 140 per unit length. The smaller the winding density of the electromagnetic coil 140, the fewer the number of turns of the sub-coils per unit length, the larger the pitch between adjacent sub-coils, and the weaker the strength of the magnetic field generated by the electromagnetic coil 140 per unit length.

In this way, in the heating stage of the initial stage of heating, the position of the moving member 160 can be controlled to make a portion of the electromagnetic coil 140 have a larger winding density, and the magnetic field strength generated by the portion of the electromagnetic coil 140 is larger, so that the region of the heating element 120 corresponding to the portion of the electromagnetic coil 140 forms a concentrated high-temperature region, which is beneficial to fast aerosol generation. In the middle and later heat preservation stages of heating, the movable member 160 can be controlled to drive part of the sub-coils to move in the axial direction so as to change the winding density of the electromagnetic coil 140, so that the magnetic field strength generated by each part of the electromagnetic coil 140 in the axial direction has higher consistency, the temperature of each region of the whole heating assembly 120 in the axial direction is kept uniform, and finally, a good heating effect is realized, and a user obtains better use experience.

Further, part of the sub-coils in the electromagnetic coil 140 are fixed relative to the heating component 120, so that the electromagnetic coil 140 is prevented from being separated from the heating component 120 in the moving process, and the safety of the atomizer 100 is ensured.

It will be appreciated that any sub-coil may be provided as desired to be fixed with respect to the heat generating component 120, and sub-coils not fixed with respect to the heat generating component 120 may be moved with respect to the heat generating component 120. As a preferred embodiment, the sub-coils at two opposite ends of the electromagnetic coil 140 in the axial direction are fixed relative to the heating component 120, respectively, and the middle portion of the electromagnetic coil 140 can move along the axial direction of the electromagnetic coil 140 under the driving of the moving member 160, so that the electromagnetic coil 140 is effectively prevented from separating from the heating component 120 during the moving process under the condition that the density of the electromagnetic coil 140 can be changed to the greatest extent.

Further, referring to fig. 4, fig. 4 shows a schematic structural diagram of a coil support according to an embodiment of the present application, in some embodiments, in order to fix a sub-coil, a limiting slot 125a is formed on an outer side wall of the coil support 125 of the heating component 120, a length direction of the limiting slot 125a extends along a circumferential direction of the coil support 125, and a shape and a size of the limiting slot 125a are matched with a shape and a size of a wire bundle forming the electromagnetic coil 140, and the sub-coil may be clamped in the limiting slot 125a to be fixed relative to the coil support 125.

As a preferred embodiment, the coil support 125 is provided with a plurality of sets of limiting grooves 125a at opposite ends in the axial direction, and a plurality of sets of limiting grooves 125a at the same end of the coil support 125 are disposed at intervals in the circumferential direction, each set of limiting grooves 125a includes at least one limiting groove 125a, and when a set of limiting grooves 125a includes at least two limiting grooves 125a, the limiting grooves 125a belonging to the same set are disposed at intervals in the axial direction of the coil support 125, so that adjacent sub-coils can be respectively clamped.

In this way, the sub-coils located at opposite ends of the electromagnetic coil 140 in the axial direction are respectively limited in the limiting grooves 125a, and the same sub-coil can be limited in a plurality of limiting grooves 125a arranged along the circumferential direction of the coil support 125 at the same time. Therefore, both ends of the electromagnetic coil 140 in the axial direction are fixed to the coil bracket 125 through the limiting grooves 125a, and only the middle portion can be moved by the moving member 160.

It will be appreciated that the movable portion of the electromagnetic coil 140 and the portion fixed relative to the heat generating component 120 are not limited to the above embodiments, and only one end of the electromagnetic coil 140 in the axial direction may be fixed relative to the coil support 125, or the middle portion of the electromagnetic coil 140 may be fixed relative to the heat generating component 120, and the fixing manner is not limited only by the limiting slot 125a, but also other manners, such as limiting buckle, may be used to limit the sub-coils.

The moving member 160 includes a moving rod 161 and at least one moving part 163. The moving rod 161 extends lengthwise in the axial direction of the heat generating assembly 120, and one end of each moving part 163 is connected to any one turn of the coil, and the other end is connected to the moving rod 161. Thus, the moving rod 161 can drive the moving part 163 to move under the action of external force, and further drive at least one turn of the sub-coil to move. As a preferred embodiment, one end of the moving part 163 is circular to be wound around the sub-coil, so that the normal operation of the sub-coil is not affected.

In some embodiments, the moving member 160 includes at least one moving rod 161, all of the moving rods 161 are arranged at intervals along the circumference of the heat generating assembly 120, and any one of the moving rods 161 may be simultaneously connected to the same turn of the sub-coil. The moving member 160 further includes a connection ring 165, the connection ring 165 is sleeved outside the heating element 120, and all the moving rods 161 are connected to the connection ring 165. Thus, all the connecting rod moving rods 161 can be driven to synchronously move through the connecting ring 165, and the sub-coils connected by the moving part 163 can be driven to synchronously move.

In particular, in one embodiment, the moving member 160 includes two moving rods 161, where the two moving rods 161 are disposed on two opposite sides of the heating component 120 in a radial direction and are simultaneously connected to a connection ring 165, one end of one moving rod 161 is provided with three moving parts 163, the three moving parts 163 are respectively sleeved on three coils, one end of one moving rod 161 is provided with two moving parts 163, and the two moving parts 163 are respectively sleeved on two coils of the three coils.

When the moving rod 161 moves along the axial direction of the atomizing assembly, the moving part 163 can drive the three coils connected with the moving rod to move along the axial direction of the electromagnetic coil 140, so that other sub-coils arranged adjacent to the moving rod are stretched or compressed along the axial direction, and finally the winding density of the electromagnetic coil 140 is adjusted.

In some embodiments, the atomizer 100 further comprises a driving member (not shown) drivingly connected to the moving member 160 for driving the moving member 160 to move in the axial direction of the electromagnetic coil 140. As a preferred embodiment, the driving member is a motor, and the moving speed and moving direction of the moving member 160 can be adjusted by controlling the rotation speed and the rotation direction of the motor. In other embodiments, the moving rod 161 may be manually moved. It will be appreciated that the driving manner, the moving speed and the starting position of the moving member 160 are not limited, and can be set according to the requirements, so as to meet different atomization requirements.

In some embodiments, the atomizer 100 further includes a shielding layer 127, where the shielding layer 127 is circumferentially wrapped around the electromagnetic coil 140, and is used for limiting the electromagnetic coil 140, and simultaneously preventing the electromagnetic coil 140 from radiating electromagnetic waves outwards.

Further, the shielding layer 127 is provided with a communication groove 127a, the communication groove 127a extends along the axial direction of the electromagnetic coil 140, and it is understood that the length of the communication groove 127a is set according to the stroke of the moving rod 161, and the moving rod 161 extends out of the communication groove 127a to be connected with a driving member or to be convenient for a user to grasp. Moreover, the communication groove 127a can play a limiting role on the moving stroke of the moving rod 161, so as to prevent the electromagnetic coil 140 from being damaged due to the overlarge moving range of the moving rod 161.

As a preferred embodiment, the shielding layer 127 is provided with two communicating grooves 127a, the two communicating grooves 127a are respectively disposed on two opposite sides of the shielding layer 127 in a radial direction, the two moving rods 161 can extend out of the shielding layer 127 through the communicating grooves 127a, and the connecting ring 165 is disposed inside the shielding layer 127.

In the above-described atomizer 100 and the aerosol-generating device provided with the same, the coil density of the electromagnetic coil 140 can be flexibly adjusted by moving a part of the sub-coils of the electromagnetic coil 140 by driving the driving means or manually moving the driving means, and the coil density of the part of the sub-coils can be increased at the initial stage of heating to concentrate the heating element 120 into a high temperature region, thereby enabling the aerosol-generating substrate located in the high temperature region to rapidly generate aerosol. In the middle and later stages of heating, the winding density of part of the electromagnetic coils 140 can be reduced by moving part of the sub-coils, so that the uniformity of the axial temperature of the heating component 120 is ensured, and the aerosol generating substrate 200 has a good heating effect, and meanwhile, the energy consumption of the atomizer 100 is reduced, so that the further popularization and application of the electromagnetic heating technology are facilitated.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.

Claims (10)

1. An atomizer, comprising:

a heating component;

the electromagnetic coil is wound outside the heating component and comprises a plurality of turns of sub-coils which are sequentially arranged along the axial direction of the electromagnetic coil; and

the moving piece is connected with at least one turn of the sub-coil;

wherein the moving member controllably moves a portion of the sub-coils along the axial direction of the electromagnetic coil to change the winding density of at least a portion of the electromagnetic coil.

2. The atomizer of claim 1 wherein a portion of said sub-coils in said electromagnetic coil are fixed relative to said heat generating component.

3. The atomizer of claim 2 wherein said sub-coils axially located at opposite ends of said electromagnetic coil are each fixed relative to said heat generating component.

4. A nebulizer as claimed in claim 2 or claim 3, wherein the outer side wall of the heat generating component is provided with a limit groove, and the sub-coil is limited in the limit groove to be fixed relative to the heat generating component.

5. The nebulizer of claim 1, wherein the moving member comprises:

a moving rod extending longitudinally along an axial direction of the electromagnetic coil; a kind of electronic device with high-pressure air-conditioning system

And one end of each moving part is connected with one of the sub-coils, and the other end of each moving part is connected with the moving rod.

6. The atomizer of claim 5 wherein one end of said moving portion is wound around said sub-coil.

7. The atomizer of claim 5 wherein said moving member includes at least one moving rod, all of said moving rods being circumferentially spaced about said electromagnetic coil, said moving member further including a connecting ring, said connecting ring being disposed about said heating element, all of said moving rods being connected to said connecting ring.

8. The nebulizer of claim 5, further comprising a driving member drivingly connected to the moving member for driving the moving member to move in an axial direction of the electromagnetic coil.

9. The atomizer of claim 5 further comprising a shielding layer, said shielding layer being wrapped around said electromagnetic coil, said shielding layer being provided with a communication slot extending axially of said electromagnetic coil, said travel bar extending beyond said communication slot.

10. An aerosol-generating device comprising an atomizer according to any one of claims 1 to 9, the aerosol-generating device further comprising a battery assembly electrically connected to the electromagnetic coil, the electromagnetic coil being configured to generate a magnetic field under the action of electrical energy of the battery assembly, the heat-generating assembly being configured to generate heat under the action of the magnetic field generated by the electromagnetic coil.