KR20210098118A - Insulation for aerosol-generating apparatus and aerosol-generating apparatus including the same - Google Patents

Abstract

Provided are an Insulating material for an aerosol generator and an aerosol generator including the same. According to some embodiments of the present invention, the aerosol generator comprises: an outer housing defining an exterior and a receiving space accommodating an aerosol-generating article; a heater heating the aerosol-generating article accommodated in the receiving space; and an insulating material disposed inside the outer housing. Since the insulating material includes a heat insulating core material and a waterproof film disposed on the outer surface of the heat insulating core material, a problem that thermal insulation performance is decreased by adsorption of liquefied sidestream smoke and the heating efficiency of the heater is increased, thereby reducing preheating time and power consumption of the aerosol generator.

Description

Insulation material for an aerosol-generating device and an aerosol-generating device comprising the same

The present disclosure relates to an aerosol-generating device comprising the same as an insulating material for an aerosol-generating device. More particularly, it relates to a thermal insulation material for an aerosol-generating device, and an aerosol-generating device including the same, designed to prevent a problem that thermal insulation performance is deteriorated as a result of absorbing the dropletized sidestream smoke.

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.

As a measure to increase energy efficiency, some electrically heated aerosol generators use cerakwool or aerogel insulation materials. However, when sidestream smoke that has penetrated into the inside of the device and formed into droplets is absorbed by the heat insulating material, the thermal conductivity of the heat insulating material is increased, so that the heat insulating performance is remarkably deteriorated, and eventually the function as the heat insulating material is lost.

A technical problem to be solved through some embodiments of the present disclosure is to provide an aerosol-generating device including an insulating material for an aerosol-generating device capable of preventing the problem of deterioration in thermal insulation performance as it absorbs sidestream smoke in a droplet form, and an 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.

An aerosol-generating device according to some embodiments of the present disclosure for solving the above technical problem, an outer housing forming an outer housing and an outer housing for accommodating an aerosol-generating article, heating the aerosol-generating article accommodated in the receiving space A heater, a heat insulating core material, and a waterproof film disposed on an outer surface of the heat insulating core material, and may include a heat insulating material disposed inside the outer housing.

In some embodiments, the waterproof film includes a first waterproof film disposed on a first outer surface of the insulating core and a second waterproof film disposed on a second outer surface opposite to the first outer surface, and the first waterproofing film Both ends of the film and the second waterproof film are adhered to seal the insulating core.

In some embodiments, the waterproof film may be a polyimide film.

In some embodiments, at least a portion of the insulating core material may be implemented as a porous structure formed by a plurality of hollow beads (bead).

In some embodiments, the heater may be a film heater, and the heat insulating part may be attached to at least a portion of the film heater.

In some embodiments, the heat insulating part may be disposed between the heater and the outer housing, and an air gap may be positioned between the heater and the heat insulating part.

In some embodiments, the insulating core material may include at least one of aerogel, perlite, ceracule, and hollow silica.

In some embodiments, the material of the waterproof film is polyetheretherketone (PEEK), polyamideimide (PAI), polyphenylsulfite (PPS), polyphenylsulfone (PPSU), polysulfone (PSU), polyether It may include at least one of sulfone (PES), polyetherimide (PEI), polytetrafluoroethylene (PTFE), and polyvinylidene fluoride (PVDF).

Insulation for an aerosol-generating device according to some embodiments of the present disclosure for solving the above-described technical problem, a heat-insulating core material including a heat-insulating material, a first waterproof film disposed on the first outer surface of the heat-insulating core material and a second waterproof film disposed on a second outer surface opposite to the first outer surface.

According to various embodiments of the present disclosure described above, the insulating material on which the waterproof film is disposed is used in the aerosol-generating device. Accordingly, the problem that the dropletized sidestream smoke is absorbed by the insulating material can be prevented in advance, and the performance of the insulating material can be continuously maintained. Furthermore, the heating efficiency of the heater is improved, so that the power consumption can be reduced, the preheating time of the apparatus can be shortened, and the initial taste of the cigarette can be increased.

In addition, a porous structure formed by a plurality of ceramic hollow beads is used as a heat insulating material. Such a porous structure has low thermal conductivity and excellent thermal insulation performance, thereby minimizing thermal energy loss.

In addition, the heater of the aerosol-generating device is implemented as a film heater, and a heat insulating material is disposed on the film heater. For example, a heat insulator may be disposed on the film heater by a heat fusion method to form a heat insulator-integrated film heater. Accordingly, the space occupied by the heat insulating material and the heater is minimized, and a compact aerosol generating device can be easily manufactured.

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 a view for explaining a problem in which the performance of the insulating material is deteriorated due to sidestream smoke.
2 shows an exemplary structure of an insulating material for an aerosol-generating device according to some embodiments of the present disclosure.
3 and 4 are views for explaining a hollow bead-based insulator according to some embodiments of the present disclosure.
5 illustrates an aerosol-generating device to which a method for disposing an insulating material according to a first embodiment of the present disclosure is applied.
6 illustrates an aerosol-generating device to which a method for disposing an insulating material according to a second embodiment of the present disclosure is applied.
7 to 9 are exemplary block diagrams illustrating an aerosol-generating device to which an insulating material 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 a component is described as being “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.

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 present 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 vaporizing unit, and a hybrid aerosol-generating device using a liquid vaporizing unit 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, "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 may be, for example, a cigarette, but the scope of the present disclosure is not limited to these examples.

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.

As used herein, "upstream" or "upstream direction" means a direction away from the smoker's bend, and "downstream" or "downstream direction" may mean a direction approaching from the smoker's bend. .

Before describing various embodiments of the present disclosure in earnest, a problem in which the performance of the insulator is deteriorated due to sidestream smoke will be described.

1 is a view for explaining a problem in which the performance of the insulating material is deteriorated due to sidestream smoke, and illustrates smoking of the cigarette 23 through the aerosol generating device 20 .

As illustrated in FIG. 1 , a heater 22 disposed around the cigarette 23 heats the cigarette 23 so that smoking can be achieved. In this case, the heat insulating material 21 may be disposed around the heater 22 in order to reduce thermal energy loss of the heater 22 .

During smoking, mainstream smoke and sidestream smoke may be generated from the cigarette 23 . As illustrated in FIG. 1 , mainstream smoke is inhaled through the user's mouth, and sidestream smoke generated at the upstream end of the cigarette 23 may penetrate into the aerosol-generating device 20 .

At this time, when the internal temperature of the aerosol generating device 20 falls, the sidestream smoke may become droplets, and a phenomenon may occur in which the heat insulating material 21 absorbs the dropletized sidestream smoke. In addition, as this phenomenon continues, the thermal conductivity of the insulator 21 is gradually increased, and eventually loses its function as a heat insulator.

Hereinafter, the technical idea of the present disclosure for solving the above-described problems will be described in detail through various embodiments.

2 shows an exemplary structure of an insulating material 10 for an aerosol-generating device according to some embodiments of the present disclosure.

As shown in FIG. 2 , the heat insulating material 10 may include a heat insulating core 12 including a heat insulating material and a waterproof film 11 disposed on the outer surface of the heat insulating core 12 . For example, the first waterproof film 11-1 is disposed (eg laminated) on the first outer surface of the heat insulating core 12, and the second waterproof film 11-2 is disposed on the second outer surface opposite to the first outer surface. ) can be placed (eg stacked). The waterproof film 11 may play a role in preserving the thermal insulation performance of the insulating core 12 by blocking external moisture (e.g. dropletized sidestream smoke) and airflow.

Here, disposing the waterproof film 11 on the insulating core 12 means not only attaching the waterproof film 11 using an adhesive material, but also all of the methods for making the insulating core 12 and the waterproof film 11 in close contact. methods can be included. For example, vacuum filling the insulating core 12 between the waterproof films 11-1 and 11-2 may also be included in the meaning of the arrangement.

In some embodiments, the waterproof film 11 may be arranged such that the insulating core 12 is sealed (sealed) from the outside. For example, as illustrated in FIG. 1 , when the first waterproof film 11-1 and the second waterproof film 11-2 are disposed on each outer surface of the insulating core 12, the first waterproof film ( 11-1) and both ends 13-1 and 13-2 of the second waterproof film 11-2 may be bonded (sealed). In this case, the heat insulating core 12 may be completely sealed from the outside to prevent penetration of external moisture or airflow. For example, a problem in which moisture or airflow permeates between the heat insulating core 12 and the waterproof film 11 and deteriorates the performance of the heat insulating core 12 may be prevented in advance.

The material of the insulating core 12 may vary, which may vary according to embodiments.

In some embodiments, the material of the insulating core 12 may include at least one of airgel, silica gel, pearlite (eg close cell type), cerakwool, and hollow silica. .

In some embodiments, the material of the insulating core 12 may include a hollow bead (e.g., a hollow ceramic bead, a hollow silica bead). For example, a porous structure including a plurality of hollow beads may be used as the heat insulating core 12 . This embodiment will be described in more detail later with reference to FIGS. 3 and 4 .

However, the material of the insulating core 12 is not limited to the above-described examples, and other types of insulating materials may be applied to the insulating core 12 .

In addition, the material of the waterproof film 11 may also vary, which may also vary depending on the embodiment.

In some embodiments, the waterproof film 11 may be a polyimide film. The polyimide film not only blocks moisture absorption, but also has excellent heat resistance, so it may be suitable as a heat insulator disposed in a film heater.

In some other embodiments, the waterproof film 11 may be implemented as a film of another material having waterproof properties. For example, the material of the waterproof film 11 is polyetheretherketone (PEEK), polyamideimide (PAI), polyphenylen sulfide (PPS), polyphenylsulfone (PPSU) , polysulfone (PSU), polyethersulfone (PES), polyetherimide (PEI), polytetrafluoroethylene (PTFE), polyvinylidene fluoride (PVDF) It may include at least one. However, it is not limited to the above examples.

On the other hand, since the waterproof film 11 and/or the insulating core 12 is disposed inside the aerosol generating device (eg 30-1, 30-2 in FIG. 5 or FIG. 6), it is preferable to be implemented with a material having high heat resistance. can For example, the waterproof film 11 and/or the heat insulating core 12 may be preferably implemented with a material having a heat resistance of about 200 degrees or more.

So far, it has been described with respect to the insulation 10 for an aerosol-generating device according to some embodiments of the present disclosure with reference to FIG. 2 . As described above, by providing the waterproof film 11 on the outer surface of the heat insulating material 10 , absorption of the dropletized sidestream smoke can be blocked. Accordingly, the performance of the insulator 10 may be continuously maintained. Hereinafter, the hollow bead-based insulator 10 will be described with reference to FIGS. 3 and 4 .

3 illustrates a hollow bead-based insulation 10 according to some embodiments of the present disclosure.

As shown in FIG. 3 , the heat insulating material 10 may include a heat insulating core material 12 and a waterproof film 11 disposed on the outer surface, and a porous structure formed by a plurality of hollow beads is a heat insulating core material 12 . can be used as The waterproof film 11 may block penetration of moisture or airflow through pores on the outer surface of the heat insulating core 12 .

The porous structure 12 may be formed by packing a plurality of hollow beads. For example, as shown in FIG. 4 , the porous structure 12 may be formed by sphere packing and firing a plurality of hollow beads 30 . The sphere packing method may be, for example, a body-centered cubic structure (BCC), a face-centered cubic structure (FCC), etc., but the scope of the present disclosure is not limited to the above examples. .

It may be preferable that the material of the hollow bead is a ceramic bead having low thermal conductivity. In addition, the ceramic beads may include, for example, ceramic silica beads and ceramic alumina beads. However, the scope of the present disclosure is not limited to the examples listed above, and hollow beads made of other materials having low thermal conductivity may be used.

In some embodiments, the diameter of the hollow beads may be between 75 μm and 500 μm. 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 beads be 75 μm or more, because the larger the size of the hollow beads, the better the thermal insulation performance of the porous structure. In addition, it may be preferable that the diameter of the hollow bead be 500 μm or less, because as the size of the hollow bead increases, the surface curvature increases, making it difficult to closely dispose the waterproof film 11 .

Also, in some embodiments, the diameter distribution of the plurality of hollow beads may have an error range of 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 required for manufacturing the porous structure 12 within this error range can be greatly reduced.

On the other hand, according to some embodiments of the present disclosure, the initial porous structure is formed by packing the hollow beads of the first size, and the final porous structure is formed by packing the hollow beads of the second size on the outer surface of the initial porous structure. You may. In this case, the second size may have a smaller value than the first size. In this case, since the pore size of the outer surface of the porous structure becomes small, the waterproof film 11 can be easily disposed. In addition, by forming the initial porous structure with a hollow bead of a sufficiently large size, the performance of the heat insulating material 10 can be improved.

So far, the method for manufacturing the hollow bead-based insulation 10 through the packing and firing process has been described, but in some other embodiments of the present disclosure, the hollow beads are densely filled between the waterproof film 11 . In this way, the heat insulating material 10 may be manufactured. In this case, since the firing process is not performed, the heat insulating material 10 can be manufactured in a flexible film form, and the manufactured heat insulating material 1 wraps the heater (eg the film type heater 33 illustrated in FIG. 5 ) or is attached to the heater. It can be well utilized in this way (see FIG. 5).

So far, the hollow bead-based insulation 10 according to some embodiments of the present disclosure has been described with reference to FIGS. 3 and 4 . Hereinafter, an embodiment of the method of disposing the above-described heat insulator 10 will be described with reference to FIGS. 5 and 6 .

5 illustrates an aerosol-generating device 30-1 to which a method for disposing a heat insulator according to a first embodiment of the present disclosure is applied.

As illustrated in FIG. 5 , in this embodiment, the heat insulating material 10 is attached to the heater 33 to improve the heating efficiency of the heater 33 . For example, the heat insulating material 10 is manufactured in the form of a flexible film, the heater 33 is also implemented as a film type heater, and the manufactured film type heat insulating material 10 is attached to the film type heater 33 by thermal fusion or adhesive method. can Hereinafter, the present embodiment together with the components of the aerosol generating device 30-1 will be described in more detail.

As shown in FIG. 5 , the aerosol-generating device 30 - 1 may include an outer housing 31 , an inner housing 32 , a heater 33 , and an insulating material 10 attached to the heater 33 . . However, only the components related to the embodiment of the present disclosure are illustrated in FIG. 5 . Accordingly, those skilled in the art to which the present disclosure pertains can see that other general-purpose components other than the components shown in FIG. 5 may be further included. For example, although not shown, the aerosol-generating device 30-1 includes a battery (not shown) that supplies power to the heater 33, and a component of the aerosol-generating device 30-1 (eg heater 33, a battery). etc.) may further include a control unit (not shown) for controlling the operation. Hereinafter, each component of the aerosol generating device 30-1 will be described.

The outer housing 31 may form the exterior of the aerosol-generating device 30 - 1 . In addition, the outer housing 31 may define 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 by the user through the mouth. The aerosol-generating article 2 may be, for example, a cigarette, although the scope of the present disclosure is not limited to this example.

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 a heater 33 to form an aerosol.

Next, the inner housing 32 may define the inner structure of the aerosol-generating device 30 - 1 . The material, arrangement, etc. of the inner housing 32 may be variously modified according to the internal design of the aerosol generating device 30 - 1 .

In some embodiments, at least a portion of the inner housing 32 may be implemented with an insulating material. In this case, heat (energy) loss to the outside of the aerosol-generating device 30-1 can be more effectively blocked.

Next, the heater 33 may heat the aerosol-generating article 2 contained in the receiving space. For example, the heater 33 may be arranged to surround at least a portion of the receiving space to heat the aerosol-generating article 2 .

As mentioned above, the heater 33 may be implemented as a film-type heater. In addition, a heat insulating material 10 may be attached to the heater 33 . The insulator 10 may be attached to the heater 33 by thermal fusion or adhesion, but the scope of the present disclosure is not limited thereto. In addition, the heat insulating material 10 may be manufactured in the form of a flexible film and attached to a desired portion of the heater 33 . For example, the heat insulating material 10 may be attached to surround the entire heater 33 , or may be attached to only a portion of the heater 33 . As a more specific example, the heat insulating material 10 may be attached in a form that surrounds the surface of the heater 33 opposite to the aerosol-generating article 2 (see FIG. 5 ). In this case, since the heat of the heater 33 can be concentrated toward the aerosol-generating article 2 , the heating efficiency of the heater 33 can be further improved.

So far, the aerosol generating device 30 - 1 according to the first embodiment of the present disclosure has been described with reference to FIG. 5 . As described above, since the heat insulating material 10 is attached to the film heater 33 , the heating efficiency of the heater 33 may be improved. Specifically, the heat of the heater 33 is concentrated on the aerosol-generating article 2 by the heat insulating material 10 , so that the heating efficiency of the heater 33 is improved, and the taste of the aerosol-generating article 2 (especially in the initial stage) taste) can also be improved. In addition, as heating efficiency is improved, the preheating time of the aerosol generating device 30 - 1 may be shortened, and power consumption may be greatly reduced. Furthermore, since the space occupied by the insulating material 10 is minimized, there is also an advantage that the aerosol generating device 30 - 1 can be manufactured more compactly.

In addition, since the heat insulating material 10 is attached to the heater 33 and disposed in the aerosol generating device 30-1, a separate process for disposing the heat insulating material 10 does not need to be performed. For example, by attaching the heat insulating material 10 when the heater 33 is manufactured, the heater 33 and the heat insulating material 10 can be manufactured integrally, and the manufacturing process can be simplified by arranging it in the aerosol generating device 30-1. there is.

Hereinafter, the aerosol generating device 30 - 2 according to the second embodiment of the present disclosure will be described with reference to FIG. 6 . For clarity of the specification, content overlapping with the previous embodiment will be omitted and description will be continued focusing on differences.

6 illustrates an aerosol-generating device 30 - 2 to which a method for disposing a heat insulator according to a second embodiment of the present disclosure is applied.

As shown in FIG. 6 , in this embodiment, the heat insulating material 10 may be disposed around the heater 33 with an air gap. More specifically, the insulator 10 may be disposed between the heater 33 and the inner housing 32 , and an air gap may be positioned between the insulator 10 and the heater 33 .

The air gap prevents heat transfer, thereby minimizing heat loss to the outside of the aerosol-generating device 30 - 2 and further improving the effect of the heat insulating material 10 . However, in this embodiment, since the process of disposing the heat insulating material 10 must be separately performed, the manufacturing process may be more complicated than in the previous embodiment.

So far, a method for disposing a heat insulator according to some embodiments of the present disclosure has been described with reference to FIGS. 5 and 6 . According to the above bar, by disposing the heat insulating material 10 in the aerosol generating device (30-1, 30-2), it is possible to improve the heating efficiency of the heater (33). Furthermore, the heat of the heater 33 is effectively concentrated on the aerosol-generating article 2 through the insulating material 10, whereby the taste (particularly the initial taste) of the aerosol-generating article 2 is improved, and the aerosol-generating device ( The preheating time of 30-1 and 30-2) may be shortened, and power consumption may be greatly reduced.

Hereinafter, various types of aerosol-generating devices 100-1 to 100-3 to which the insulating material 10 according to the embodiment can be applied will be introduced 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 heat insulating material 10 according to the embodiment may be attached to the heater 140 or disposed around the heater 140 . The heater 140 may correspond to the heater 33 illustrated in FIG. 1 .

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.

As shown in FIG. 7 , the aerosol generating device 100 - 1 may include a heater 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 140 may be disposed around the cigarette 150 to heat the cigarette 150 . 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 140 may be, for example, an electrically resistive heater, but is not limited thereto. The heater 140 or the heating temperature of the heater 140 may be controlled by the controller 120 .

An insulating material for an aerosol-generating device according to the embodiment (10 in FIG. 2 ) may be disposed around the heater 140 , thereby reducing heat energy loss to the outside and improving the heating efficiency of the heater 140 . there is. In addition, the taste of the cigarette 150 may be improved and the preheating time and power consumption of the aerosol generating device 100 - 1 may be reduced.

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 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 140 and the battery 130 , and may also control the operation of other components included in the aerosol generating device 100 - 1 . The controller 120 may control the power supplied by the battery 130 , the heating temperature of the heater 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-type 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 the vaporizing unit 1 and the cigarette 150 are arranged in parallel, and FIG. 9 is an aerosol in which the vaporizing unit 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 vaporization unit 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 an insulating material 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 though all 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: insulation material 11: waterproof film
12: insulating core material
30-1, 30-2: aerosol generating device
2: aerosol-generating article 31: outer housing
32: inner housing 33: heater
100-1, 100-2, 100-3: aerosol generating device
1: vaporizer 120: control unit
130: battery 140: heater
150: cigarette

Claims (14)

an outer housing defining an exterior and a receiving space for receiving the aerosol-generating article;
a heater for heating the aerosol-generating article accommodated in the accommodation space; and
A heat insulating core material and a waterproof film disposed on an outer surface of the insulating core material, comprising a heat insulating material located inside the outer housing,
aerosol-generating device. According to claim 1,
The waterproof film includes a first waterproof film disposed on a first outer surface of the heat insulating core and a second waterproof film disposed on a second outer surface opposite to the first outer surface,
Both ends of the first waterproof film and the second waterproof film are adhered to seal the insulating core material,
aerosol-generating device. According to claim 1,
The waterproof film is a polyimide film,
aerosol-generating device. According to claim 1,
The waterproof film is implemented with a heat-resistant material,
aerosol-generating device. According to claim 1,
At least a portion of the insulating core material is implemented as a porous structure formed by a plurality of hollow beads (bead),
aerosol-generating device. 6. The method of claim 5,
The hollow beads are hollow ceramic beads,
aerosol-generating device. 6. The method of claim 5,
The diameter of the hollow beads is 75㎛ to 500㎛,
aerosol-generating device. According to claim 1,
The heater is a film heater,
The heat insulating portion is attached to at least a portion of the film-type heater,
aerosol-generating device. 9. The method of claim 8,
The heat insulating portion is attached to the film-type heater in a heat-sealing manner,
aerosol-generating device. According to claim 1,
The heat insulating part is disposed between the heater and the outer housing,
An air gap is positioned between the heater and the heat insulator,
aerosol-generating device. According to claim 1,
The insulating core includes at least one material of airgel, perlite, ceracule, and hollow silica,
aerosol-generating device. According to claim 1,
The material of the waterproof film is polyetheretherketone (PEEK), polyamideimide (PAI), polyphenylsulfite (PPS), polyphenylsulfone (PPSU), polysulfone (PSU), polyethersulfone (PES), poly containing at least one of etherimide (PEI), polytetrafluoroethylene (PTFE), and polyvinylidene fluoride (PVDF),
aerosol-generating device. an insulating core material comprising an insulating material;
a first waterproof film disposed on the first outer surface of the heat insulating core; and
Containing a second waterproof film disposed on a second outer surface opposite to the first outer surface,
Insulation for aerosol-generating devices. 14. The method of claim 13,
Both ends of the first waterproof film and the second waterproof film are adhered to seal the insulating core material,
Insulation for aerosol-generating devices.

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