KR20210115608A - Induction heater and aerosol-generating apparatus including the same - Google Patents

Abstract

Disclosed are an induction heating device and an aerosol generating device including the same. The aerosol generating device according to an embodiment of the present disclosure comprises: a housing which forms an accommodating space accommodating an aerosol generating product and an appearance; an inductor; and a susceptor which is heated through a 3D porous body depending on induction heating by the inductor and generates aerosol by heating the aerosol generating product accommodated through an air current. The susceptor forms a complex air current path (heat transfer path) inside a porous body, and greatly improves heating efficiency and heat transferring efficiency by performing volume heating throughout the porous body at the same time. Therefore, the induction heating device and the aerosol generating device are manufactured in a compact form.

Description

Induction heater and aerosol-generating device comprising same

The present disclosure relates to an induction heater and an aerosol-generating device comprising the same. More particularly, it relates to an induction heater capable of effectively reducing the length of an airflow path functioning as a heat transfer medium by improving heating efficiency and heat transfer efficiency, and an induction heating type aerosol generating device including the same.

In recent years, there has been an increasing demand for alternative smoking articles that overcome the disadvantages of traditional cigarettes. For example, there is an increasing demand for an aerosol-generating device that generates an aerosol by electrically heating a cigarette (e.g. a cigarette-type electronic cigarette), and accordingly, research on an electrically heated aerosol-generating device is being actively conducted.

Some electrically heated aerosol-generating devices employ a convection heater structure that transfers heat to the cigarette through an airflow path rather than directly applying heat to the cigarette. However, in such a heater structure, in order to create an appropriate temperature enough to heat the cigarette, the length of the airflow path functioning as the heating element and the heat transfer medium must be designed long enough, which makes it difficult to manufacture a compact aerosol-generating device. .

A technical problem to be solved through some embodiments of the present disclosure is to provide an induction heater capable of effectively reducing the length of an airflow path functioning as a heat transfer medium, and an induction heating aerosol generating device including the same.

Another technical problem to be solved through some embodiments of the present disclosure is to provide an induction heater having a compact structure and an induction heating aerosol generating device including the same.

The technical problems of the present disclosure are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description.

In order to solve the above technical problem, an aerosol-generating device according to some embodiments of the present disclosure is a housing, an inductor, and an inductor that forms an exterior and an accommodation space for accommodating an aerosol-generating article As induction heating is performed by the inductor and a susceptor for generating an aerosol by generating heat through a three-dimensional porous body and heating the contained aerosol-generating article through an airflow.

In some embodiments, at least a portion of the porous body may be implemented with a metal foam (metal foam).

In some embodiments, at least a portion of the porous body may be formed by a plurality of beads.

In some embodiments, the material of the susceptor may include aluminum or stainless steel.

In some embodiments, it may further include a conductive part disposed to surround at least a portion of the accommodation space and transferring heat generated in the susceptor to the received aerosol-generating article in a conductive manner.

In some embodiments, disposed inside the housing, at least a portion may further include a heat insulating part implemented as a porous aggregate of hollow beads.

According to various embodiments of the present disclosure described above, a susceptor of an induction heater that performs convection heating may be implemented as a porous structure. Since the porous structure can form a complex airflow path in a small space, the susceptor itself can function as an efficient heat transfer medium, and accordingly, the heating efficiency and heat transfer efficiency of the induction heater can be greatly improved.

In addition, since the susceptor performs volume heating over the entire three-dimensional porous body, the heating efficiency and heat transfer efficiency of the induction heater can be further improved.

In addition, as the heating efficiency and heat transfer efficiency of the induction heater are improved, the length of the airflow path functioning as a heat transfer medium and the size of the induction heater can be innovatively reduced, and accordingly, A compact aerosol-generating device can be easily designed and manufactured.

In addition, by implementing the susceptor as a bead assembly, the complexity of the airflow path and the length of the airflow path serving as a heat transfer medium can be easily controlled.

Further, by arranging a conductive portion that transfers heat to the aerosol-generating article in a conductive manner, the heating efficiency and heat transfer efficiency of the induction heater can be further improved.

In addition, by arranging the heat insulating portion implemented as an aggregate of hollow beads inside the device, heat inside the aerosol-generating device can be prevented from being lost to the outside. Accordingly, the heating efficiency and heat transfer efficiency of the induction heater can be further improved.

In addition, by disposing the waterproofing membrane on the outer surface of the hollow bead assembly, the problem that the dropletized sidestream smoke is absorbed by the heat insulating material can be prevented in advance. Accordingly, the performance of the heat insulating unit may be continuously maintained.

Effects according to the technical spirit of the present disclosure are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those skilled in the art from the following description.

1 is an exemplary configuration diagram schematically showing an aerosol-generating device according to a first embodiment of the present disclosure.
2 illustrates a convection heater structure using a simple airflow path as a heat transfer medium.
3 is a view for explaining a method of manufacturing a susceptor according to some embodiments of the present disclosure.
4 is an exemplary configuration diagram schematically showing an aerosol-generating device according to a second embodiment of the present disclosure.
5 is an exemplary configuration diagram schematically showing an aerosol-generating device according to a third embodiment of the present disclosure.
6 is an exemplary view for explaining a heat insulator according to some embodiments of the present disclosure.
7 to 9 are exemplary block diagrams illustrating an aerosol-generating device to which an induction heater according to some embodiments of the present disclosure may be applied.

Hereinafter, preferred embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. Advantages and features of the present disclosure, and methods for achieving them, will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the technical spirit of the present disclosure is not limited to the following embodiments, but may be implemented in various different forms, and only the following embodiments complete the technical spirit of the present disclosure, and in the technical field to which the present disclosure belongs It is provided to fully inform those of ordinary skill in the scope of the present disclosure, and the technical spirit of the present disclosure is only defined by the scope of the claims.

In adding reference numerals to the components of each drawing, it should be noted that the same components are given the same reference numerals as much as possible even though they are indicated on different drawings. In addition, in describing the present disclosure, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present disclosure, the detailed description thereof will be omitted.

Unless otherwise defined, all terms (including technical and scientific terms) used herein may be used with the meaning commonly understood by those of ordinary skill in the art to which this disclosure belongs. In addition, terms defined in a commonly used dictionary are not to be interpreted ideally or excessively unless clearly defined in particular. The terminology used herein is for the purpose of describing the embodiments and is not intended to limit the present disclosure. As used herein, the singular also includes the plural unless specifically stated otherwise in the phrase.

In addition, in describing the components of the present disclosure, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only for distinguishing the components from other components, and the essence, order, or order of the components are not limited by the terms. When it is described that a component is “connected”, “coupled” or “connected” to another component, the component may be directly connected or connected to the other component, but another component is between each component. It should be understood that elements may be “connected,” “coupled,” or “connected.”

As used herein, “comprises” and/or “comprising” refers to a referenced component, step, operation and/or element of one or more other components, steps, operations and/or elements. The presence or addition is not excluded.

Prior to a description of various embodiments of the present disclosure, some terms used herein will be clarified.

As used herein, "aerosol-generating article" may mean an article capable of generating an aerosol. The aerosol-generating article may comprise an aerosol-generating substrate. The aerosol-generating article could be, for example, a cigarette, although the scope of the present disclosure is not limited to these examples.

In the present specification, "aerosol-generating substrate" may mean a material capable of generating an aerosol (aerosol). Aerosols may contain volatile compounds. The aerosol-generating substrate may be solid or liquid.

For example, the solid aerosol-generating substrate may include a solid material based on tobacco raw materials such as leaf tobacco, cut filler, reconstituted tobacco, etc., and the liquid aerosol-generating substrate contains nicotine, tobacco extract and/or various flavoring agents. liquid compositions based on it. However, the scope of the present disclosure is not limited to the examples listed above.

As a more specific example, the liquid aerosol-generating substrate may include at least one of propylene glycol (PG) and glycerin (GLY), ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol and oleic acid. It may further include at least one of one alcohol. As another example, the aerosol-generating substrate may further include at least one of nicotine, moisture, and a flavoring material. As another example, the aerosol-generating substrate may further include various additives such as cinnamon and capsaicin. The aerosol-generating substrate may include a material in the form of a gel or solid as well as a liquid material having high flowability. As such, the composition of the aerosol-generating substrate may be variously selected depending on the embodiment, and the composition ratio thereof may also vary depending on the embodiment. In the following specification, the liquid phase may refer to a liquid aerosol-generating substrate.

As used herein, "aerosol-generating device" may refer to a device that generates an aerosol using an aerosol-generating substrate to generate an aerosol that can be directly inhaled into the user's lungs through the user's mouth. The aerosol-generating device may include, for example, a liquid-type aerosol-generating device using a liquid cartridge, and a hybrid aerosol-generating device using a liquid cartridge and a cigarette together. However, in addition, various types of aerosol-generating devices may be further included, so that the scope of the present disclosure is not limited to the examples listed above. Reference is made to FIGS. 7 to 9 for some examples of aerosol-generating devices.

As used herein, "puff" means inhalation of a user, and inhalation may mean a situation in which the user is drawn into the user's oral cavity, nasal cavity, or lungs through the user's mouth or nose.

Hereinafter, various embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

1 is an exemplary configuration diagram schematically showing an induction heating type aerosol generating device 10-1 according to a first embodiment of the present disclosure.

As shown in FIG. 1 , the aerosol-generating device 10 - 1 may include an outer housing 11 , an inner housing 12 and an induction heater 13 . However, only the components related to the embodiment of the present disclosure are illustrated in FIG. 1 . Accordingly, those of ordinary skill in the art to which the present disclosure pertains can see that other general-purpose components other than those shown in FIG. 1 may be further included. For example, although not shown, the aerosol-generating device 10-1 includes a battery (not shown) that supplies power to the induction heater 13, and a component of the aerosol-generating device 10-1 (eg, the induction heater 13). , battery, etc.) may further include a control unit (not shown) for controlling the operation. Hereinafter, each component of the aerosol generating device 10-1 will be described.

The outer housing 11 may form the exterior of the aerosol-generating device 10 - 1 . In addition, the outer housing 11 may form a receiving space for receiving the aerosol-generating article 2 . The aerosol-generating article 2 may be electrically heated while being inserted into the receiving space to generate an aerosol, and the generated aerosol may be inhaled through the user's mouth. The aerosol-generating article 2 may be, for example, a cigarette, although the scope of the present disclosure is not limited thereto.

The portion 21 of the aerosol-generating article 2 may comprise a solid aerosol-generating substrate. The solid aerosol-generating substrate may be heated by an induction heater 13 to form an aerosol.

Next, the inner housing 12 may define a structure inside the aerosol-generating device 10 - 1 . The material, arrangement, etc. of the inner housing 12 may be variously modified according to the internal design of the aerosol generating device 100 .

Next, the induction heater 13 may generate an aerosol by heating the aerosol-generating article 2 accommodated in the receiving space. More specifically, the induction heater 13 may be spaced apart in the receiving space to heat the aerosol-generating article 2 by transferring heat through an airflow (ie in a convection manner). For example, the aerosol-generating article 2 can be heated by the ambient air heated by the induction heater 13 being transferred along the airflow towards the aerosol-generating article 2 in the course of smoking, for example.

The induction heater 13 may include a susceptor 131 having a three-dimensional porous body, and an inductor 132 inductively coupled to the susceptor 131 . Here, the susceptor 131 functions as a heating element and a heat transfer medium. The reason for implementing the susceptor 131 as a porous structure is that it can form a complex airflow path in a small space due to its structural characteristics, and heat preservation performance is also This is because it can improve heating efficiency and heat transfer efficiency at the same time. For convenience of understanding, detailed components of the induction heater 13 and their effects will be described in more detail.

The susceptor 131 may function as a heating element that performs volume heating over the entire porous body and a heat transfer medium. Specifically, the susceptor 131 may generate heat through the three-dimensional porous body by induction heating by the inductor 132 (function as a heating element). Since the susceptor 131 generates heat over the entire three-dimensional porous body, the heating performance may be superior to that of the planar heating element. In addition, the susceptor 131 can accumulate and transfer heat (function as a heat transfer medium) through a complex airflow path formed within the porous body. Accordingly, efficient heat transfer (diffusion) can be achieved in a small space, and the length L of the airflow path and the size of the induction heater 13 can be innovatively reduced. In order to provide more convenience of understanding, it will be described in comparison with the convection heater structure illustrated in FIG. 2 .

2 illustrates a convection heater structure using a simple airflow path as a heat transfer medium.

The convection heater 3 illustrated in FIG. 2 has a shape in which a heating wire is wound around a ceramic rod, and the air around the heating wire is transmitted through a simple airflow path to heat the aerosol-generating article 2 It adopts a structure. . In this structure, since heated air is difficult to sufficiently accumulate, the heating area of the convection heater 3 must be significantly increased, and this causes the convection heater 3 and the length of the airflow path acting as a heat transfer medium (L) ) must also be designed long enough. That is, in the structure illustrated in FIG. 2 , the size of the convection heater 3 is inevitably large, and it is difficult to manufacture the aerosol-generating device compactly.

Contrary to this, in the induction heater 13 illustrated in FIG. 1 , a complex airflow path is formed inside the susceptor 131 and volume heating is performed, and the heating area (ie, the contact area between the airflow and the susceptor) relative to space is reduced. can be significantly increased. Accordingly, the air can be sufficiently heated even in a small space, and as a result, the length L of the airflow path can be shortened innovatively, and the aerosol generating device 10-1 can also be manufactured in a compact form. . In addition, since the heating efficiency of the induction heater 13 is greatly improved, the effect of greatly reducing power consumption can also be achieved.

Meanwhile, a method of implementing the porous body of the susceptor 131 may vary according to embodiments.

In some embodiments, the porous body of the susceptor 131 may be implemented with metal foam. For example, the susceptor 131 may be manufactured through foam molding. However, the scope of the present disclosure is not limited thereto.

In some other embodiments, the porous body of the susceptor 131 may be formed by a plurality of beads. That is, the porous body may be implemented as a bead aggregate (aggregate). For example, as shown in FIG. 3 , the susceptor 131 may be manufactured by packing a plurality of beads 20 . The packing method may be sphere packing, but the scope of the present disclosure is not limited thereto. For the packing structure, various structures such as, for example, a body-centered cubic structure (BCC) and a face-centered cubic structure (FCC), etc., may be variously selected and designed according to the complexity of the airflow path. can In this embodiment, a porous body having a uniform pore size and distribution can be easily manufactured, and the pore size, distribution, porosity, etc. can be easily controlled based on the bead size (or packing structure). Accordingly, the susceptor 131 in which volume heating is uniformly performed can be easily manufactured, and the length L of the airflow path or the size of the susceptor 131 can also be easily controlled.

In the above-described embodiment, the diameter distribution of the plurality of beads may have an error range within 30% of the average diameter. Preferably, the diameter distribution of the plurality of beads may have an error range of within 25%, 23% or 21%. More preferably, the diameter distribution of the plurality of beads may have an error range of within 20%, 18%, 16%, 14%, 12% or 10%. Even more preferably, the diameter distribution of the plurality of beads may have an error range of within 8%, 6% or 5%. Since it is not easy to continuously manufacture beads having the same diameter, the cost and difficulty of manufacturing the susceptor 131 can be greatly reduced within this error range.

Meanwhile, the susceptor 131 may be implemented with any material capable of induction heating. For example, the susceptor 131 may be implemented with a material such as a metal material containing iron such as aluminum or stainless steel (e.g. SUS304, SUS430), a ferromagnetic material, or a non-ferrous metal capable of induction heating.

It will be described again with reference to FIG. 1 .

The inductor 132 may inductively heat the susceptor 131 using electromagnetic induction. The inductor 132 may include, for example, one or more coils, but the scope of the present disclosure is not limited thereto. The inductor 132 may be electrically connected to a battery (not shown) to receive electricity, and a control process for this may be performed by a controller (not shown).

So far, the aerosol-generating device 10-1 according to the first embodiment of the present disclosure has been described with reference to FIGS. 1 to 3 . As described above, the susceptor 131 of the induction heater 13 for performing convection heating may be implemented as a porous structure. Since the porous structure can form a complex airflow path in a small space, the susceptor 131 itself can function as an efficient heat transfer medium, and thus the heating efficiency and heat transfer efficiency of the induction heater 13 are greatly improved. can be improved In addition, since the susceptor 131 performs volume heating over the entire three-dimensional porous body, the heating efficiency and heat transfer efficiency of the induction heater 13 can be further improved. Accordingly, the length L of the airflow path serving as the heat transfer medium can be innovatively reduced, and a compact aerosol-generating device that meets the user's needs can be easily designed and manufactured.

Hereinafter, the aerosol generating device 10-2 according to the second embodiment of the present disclosure will be described. In the following description, for the sake of clarity of the specification, redundant descriptions are excluded and the description continues with a focus on differences from the previous embodiments.

4 is an exemplary configuration diagram schematically showing an aerosol-generating device 10-2 according to a second embodiment of the present disclosure.

As shown in FIG. 4 , the aerosol-generating device 10 - 2 may further include a conductive portion 14 disposed thermally adjacent to the aerosol-generating article 2 received in the receiving space.

The conductive portion 14 may be implemented with a thermally conductive material to transfer the heat generated by the susceptor 131 to the aerosol-generating article 2 in a conductive manner. Accordingly, heat transfer efficiency may be further improved, and the induction heater 13 and the aerosol generating device 10-2 may be manufactured in a more compact form.

So far, the aerosol-generating device 10-2 according to the second embodiment of the present disclosure has been described with reference to FIG. 4 . Hereinafter, the aerosol generating device 10-3 according to the third embodiment of the present disclosure will be described with reference to FIG. 5 .

5 is an exemplary configuration diagram illustrating an aerosol-generating device 10-3 according to a third embodiment of the present disclosure.

As shown in FIG. 5 , the aerosol-generating device 10 - 3 may further include an insulating portion 15 disposed between the inner housing 12 and the conductive portion 14 . However, in some embodiments, the conductive part 14 may be omitted, and in this case, the heat insulating part 15 may be disposed inside the inner housing 12 .

The thermal insulation unit 15 may further improve the heating efficiency of the induction heater 13 by blocking the heat inside the aerosol generating device 10 - 3 from being lost to the outside. Furthermore, the thermal insulation unit 15 allows the heat generated by the induction heater 13 to be concentrated on the aerosol-generating article 2, thereby shortening the preheating time of the aerosol-generating device 10-3 and reducing power consumption. have. In addition, the initial taste of the aerosol-generating article 2 can be greatly improved through fast preheating.

In some embodiments, as shown in FIG. 6 , the heat insulating part 15 may include an assembly of hollow beads 151 and a waterproofing film 152 formed on an outer surface of the assembly. The hollow bead may be, for example, a hollow bead made of a ceramic material, but the scope of the present disclosure is not limited thereto. In addition, the waterproof film may include, for example, a glass film, a polyimide coating film, a water-repellent coating film, and a combination thereof, but the scope of the present disclosure is not limited thereto. According to this embodiment, the problem that the performance of the heat insulating part 15 is reduced due to moisture absorption can be solved. For example, if sidestream smoke penetrates into the device and forms droplets, the insulation may become wet and the insulation ability may gradually deteriorate. However, according to the present embodiment, this problem can be solved by blocking the absorption of the sidestream smoke that has been formed into droplets through the waterproofing membrane.

In the above-described embodiment, the diameter of the hollow bead 151 may be 75㎛ to 500㎛. Preferably, the diameter of the hollow beads may be 100 μm to 450 μm, 150 μm to 450 μm, or 150 μm to 400 μm. Within this numerical range, excellent thermal insulation performance and ease of manufacture may be secured. For example, it may be preferable that the diameter of the hollow bead 151 be 75 μm or more, because the larger the size of the hollow bead 151, the better the thermal insulation performance. In addition, it may be preferable that the diameter of the hollow bead 151 be 500 μm or less, which increases the surface curvature as the size of the hollow bead 151 increases, increasing the cost and difficulty required to form a waterproofing film. because it does

So far, the aerosol-generating device 10-3 according to the third embodiment of the present disclosure has been described with reference to FIGS. 5 and 6 . According to the above, by disposing the heat insulating part 15 implemented as an aggregate of the hollow beads 151 inside the device 10-3, the heat inside the aerosol generating device 10-3 is lost to the outside. can be prevented. Accordingly, the heating efficiency and heat transfer efficiency of the induction heater 13 may be further improved. In addition, by disposing the waterproofing membrane 152 on the outer surface of the hollow bead assembly, the problem that the dropletized sidestream smoke is absorbed can be prevented in advance. Accordingly, even if time elapses, the performance of the heat insulating unit 15 can be preserved.

Hereinafter, the aerosol-generating devices 100-1 to 100-3 to which the induction heater 13 according to some embodiments of the present disclosure may be applied will be described with reference to FIGS. 7 to 9 .

7 to 9 are exemplary block diagrams illustrating the aerosol-generating devices 100-1 to 100-3. Although not shown in detail in the drawings, the above-mentioned induction heater 13 and related technical configurations (e.g. conductive part 14, heat insulating part 15) may be applied to implement the heater part 140 .

7 illustrates a cigarette-type aerosol-generating device 100-1, and FIGS. 8 and 9 illustrate hybrid-type aerosol-generating devices 100-2 and 100-3 using a liquid and a cigarette together. Hereinafter, each aerosol generating device 100-1 to 100-3 will be described.

7 , the aerosol generating device 100 - 1 may include a heater unit 140 , a battery 130 , and a control unit 120 . However, this is only a preferred embodiment for achieving the object of the present disclosure, and it goes without saying that some components may be added or omitted as necessary. In addition, each component of the aerosol-generating device 100-1 shown in FIG. 7 represents functionally distinct functional elements, in which a plurality of components are implemented in a form that is integrated with each other in an actual physical environment, or a single component. The element may be implemented in a form in which the element is divided into a plurality of detailed functional elements. Hereinafter, each component of the aerosol generating device 100-1 will be described.

The heater unit 140 may heat the cigarette 150 in a convection manner. The cigarette 150 includes a solid aerosol-generating substrate and is capable of generating an aerosol as it is heated. The generated aerosol can be inhaled through the mouth of the user. The heater unit 140 or the heating temperature of the heater unit 140 may be controlled by the controller 120 . For the heater unit 140, reference will be made to the description of the induction heater 13 mentioned above.

Next, the battery 130 may supply power used to operate the aerosol generating device 100 - 1 . For example, the battery 130 may supply power to the heater unit 140 to heat the aerosol-generating substrate included in the cigarette 150 , and may supply power required for the control unit 120 to operate.

In addition, the battery 130 may supply power required to operate electrical components such as a display (not shown), a sensor (not shown), and a motor (not shown) installed in the aerosol generating device 100-1.

Next, the controller 120 may control the overall operation of the aerosol generating device 100 - 1 . For example, the controller 120 may control the operation of the heater unit 140 and the battery 130 , and may also control the operation of other components included in the aerosol generating device 100 - 1 . The control unit 120 may control the power supplied by the battery 130 , the heating temperature of the heater unit 140 , and the like. Also, the controller 120 may determine whether the aerosol-generating device 100-1 is in an operable state by checking the state of each of the components of the aerosol-generating device 100-1.

The controller 120 may be implemented by at least one processor. The processor may be implemented as an array of a plurality of logic gates, or may be implemented as a combination of a general-purpose microprocessor and a memory in which a program executable in the microprocessor is stored. In addition, those of ordinary skill in the art to which the present disclosure pertains may clearly understand that the controller 120 may be implemented with other types of hardware.

Hereinafter, the hybrid aerosol generating devices 100-2 and 100-3 will be briefly described with reference to FIGS. 8 and 9 .

8 illustrates an aerosol-generating device 100-2 in which a vaporizer 1 and a cigarette 150 are arranged in parallel, and FIG. 9 is an aerosol in which the vaporizer 1 and the cigarette 150 are arranged in series. A generating device 100-3 is illustrated. However, the internal structure of the aerosol-generating device is not limited to that illustrated in FIGS. 8 and 9 , and the arrangement of components may be changed according to a design method.

8 and 9, the vaporizer 1 comprises a liquid reservoir for storing a liquid aerosol-generating substrate, a wick for absorbing the aerosol-generating substrate, and a heating element for heating the absorbed aerosol-generating substrate to generate an aerosol. may include The aerosol generated by the vaporizer 1 may pass through the cigarette 150 and be inhaled through the user's mouth. The heating element of the vaporizer 1 may also be controlled by the control unit 120 .

Up to now, exemplary aerosol-generating devices 100-1 to 100-3 to which the induction heater 13 according to some embodiments of the present disclosure can be applied have been described with reference to FIGS. 7 to 9 .

In the above, even if all the components constituting the embodiment of the present disclosure are described as being combined or operated in combination, the technical spirit of the present disclosure is not necessarily limited to this embodiment. That is, within the scope of the object of the present disclosure, all of the components may operate by selectively combining one or more.

Although embodiments of the present disclosure have been described above with reference to the accompanying drawings, those of ordinary skill in the art to which the present disclosure pertains may practice the present disclosure in other specific forms without changing the technical spirit or essential features. can understand that there is Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. The protection scope of the present disclosure should be interpreted by the following claims, and all technical ideas within the equivalent range should be construed as being included in the scope of the technical ideas defined by the present disclosure.

10-1, 10-2, 10-3: aerosol generating device
2: aerosol-generating article
11: outer housing 12: inner housing
13: induction heater 14: conduction part
15: insulation 131: susceptor
132: inductor
100-1, 100-2, 100-3: aerosol generating device
1: vaporizer 120: control unit
130: battery 140: heater unit
150: cigarette

Claims (8)

a housing defining an exterior and a receiving space for receiving the aerosol-generating article;
inductors; and
a susceptor that generates heat through a three-dimensional porous body as it is inductively heated by the inductor and generates an aerosol by heating the contained aerosol-generating article through an airflow,
Induction heating aerosol generating device. According to claim 1,
At least a portion of the porous body is implemented as a metal foam (metal foam),
Induction heating aerosol generating device. According to claim 1,
At least a portion of the porous body is formed by a plurality of beads (bead),
Induction heating aerosol generating device. According to claim 1,
The material of the susceptor includes aluminum or stainless steel,
Induction heating aerosol generating device. According to claim 1,
It is disposed so as to surround at least a portion of the receiving space, further comprising a conductive part for transferring the heat generated in the susceptor to the received aerosol-generating article in a conductive manner,
Induction heating aerosol generating device. According to claim 1,
It is disposed inside the housing, at least a portion further comprising a heat insulating portion implemented as a porous aggregate of hollow beads,
Induction heating aerosol generating device. 7. The method of claim 6,
The heat insulating portion further comprises a glass film formed on the outer surface of the porous assembly,
aerosol-generating device. 7. The method of claim 6,
The heat insulating part further comprises a polyimide coating film or a water-repellent coating film formed on the outer surface of the porous assembly,
aerosol-generating device.

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