WO2024147520A1

WO2024147520A1 - Heater assembly for aerosol generating device, and aerosol generating device comprising same

Info

Publication number: WO2024147520A1
Application number: PCT/KR2023/021008
Authority: WO
Inventors: 권영범; 김동성; 김용환; 임헌일
Original assignee: 주식회사 케이티앤지
Priority date: 2023-01-02
Filing date: 2023-12-19
Publication date: 2024-07-11
Also published as: CN120265166A; US20240215645A1

Abstract

A heater assembly for an aerosol generating device, according to one embodiment, comprises: a body that forms a receiving space for accommodating an aerosol generating article; a first cover coupled to the body and having an article insertion portion into which the aerosol generating article is inserted; a support unit disposed inside the body and the first cover and surrounding the aerosol generating article accommodated in the receiving space; and a heater disposed between the inner and outer surfaces of the support unit and heating the aerosol generating article by applying a magnetic field to a susceptor disposed in the receiving space, wherein the heater is arranged so as to completely overlap with the support unit on the basis of a second direction crossing a first direction in which the support unit extends.

Description

Heater assembly for an aerosol generating device and an aerosol generating device comprising the same

Embodiments relate to a heater assembly for an aerosol generating device that is miniaturized and has improved heating efficiency, and an aerosol generating device including the same.

Recently, the demand for technology to replace the method of supplying aerosol by burning a typical cigarette is increasing. For example, an aerosol can be produced from an aerosol-generating material in a liquid state or a solid state, or an aerosol with a flavor can be supplied by generating vapor from an aerosol-generating material in a liquid state and then passing the generated vapor through a solid-state scent medium. Research on methods such as these is in progress.

An example of the aerosol generating device may include an induction heating type aerosol generating device that heats the aerosol generating material by generating a magnetic field and causing the susceptor to generate heat.

The induction heating type aerosol generating device may include a heater that generates a magnetic field to heat the susceptor and a bobbin that supports the heater.

Typically, the heater may be wound along the outer surface of the bobbin. That is, since space for the heater to be wound must be secured in advance outside the bobbin, other components of the aerosol generating device (e.g., insulation) cannot be placed outside the bobbin. As a result, due to the area in which the heater is disposed outside the bobbin, a separate space must be secured for arranging other components of the aerosol generating device, which may increase the overall size of the aerosol generating device.

Additionally, when the susceptor is disposed inside the bobbin, since the heater is wound on the outside of the bobbin, the separation distance between the heater and the susceptor can be generally increased. As a result, since the susceptor is placed in a position away from the magnetic field area generated by the heater, the heating efficiency of the susceptor may be lowered.

The present disclosure seeks to provide a heater assembly and an aerosol generating device for an aerosol generating device that can be miniaturized by reducing the area where the heater is autonomous within the aerosol generating device.

In addition, the present disclosure seeks to provide a heater assembly and an aerosol generating device for an aerosol generating device that can improve the heating efficiency of the susceptor by reducing the separation distance between the heater and the susceptor.

The problems to be solved through the embodiments are not limited to the above-mentioned problems, and problems not mentioned can be clearly understood by those skilled in the art from this specification and the attached drawings. will be.

A heater assembly for an aerosol generating device according to one embodiment includes a body forming a receiving space for accommodating an aerosol generating article; A first cover coupled to the body and having an article insertion portion into which the aerosol-generating article is inserted; a support unit disposed inside the body and the first cover and surrounding the aerosol-generating article accommodated in the receiving space; and a heater disposed between the inner and outer surfaces of the support unit and heating the aerosol-generating article by applying a magnetic field to the susceptor disposed in the receiving space. The heater may be arranged to completely overlap the support unit based on a second direction crossing the first direction in which the support unit extends.

A heater assembly for an aerosol generating device according to one embodiment includes a body forming a receiving space for accommodating an aerosol generating article; a first cover coupled to the body and having an article insertion portion into which the aerosol-generating article is inserted; a support unit disposed inside the body and the first cover and surrounding the aerosol-generating article accommodated in the receiving space; and a heater that protrudes from the inner surface of the support unit toward the receiving space and heats the aerosol-generating article by applying a magnetic field to a susceptor disposed in the receiving space.

An aerosol generating device according to one embodiment includes a heater assembly for an aerosol generating device; a battery providing power to a heater assembly for the aerosol generating device; and a control unit that controls the operation of the heater assembly for the aerosol generating device.

The heater assembly for the aerosol generating device and the aerosol generating device according to various embodiments of the present disclosure can achieve miniaturization and improve the heating efficiency of the susceptor.

The effects according to the technical idea of the present disclosure are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description below.

1 is a perspective view of an aerosol generating device and an aerosol generating article inserted therein according to one embodiment.

Figure 2 is a front perspective view of a heater assembly for an aerosol generating device according to one embodiment.

Figure 3 is a rear perspective view of a heater assembly for an aerosol generating device according to one embodiment.

FIG. 4 is an exploded perspective view of a heater assembly for an aerosol generating device according to an embodiment shown in FIG. 2.

FIG. 5 is a cross-sectional view of the heater assembly for an aerosol generating device according to an embodiment, taken along the line A-A' of FIG. 2 to explain an example of the arrangement of the heater.

FIG. 6 is a cross-sectional view of the heater assembly for an aerosol generating device according to an embodiment, taken along the line A-A' of FIG. 2 to explain another example of the arrangement of the heater.

FIG. 7 is a cross-sectional view of the heater assembly for an aerosol generating device according to an embodiment, taken along the line A-A' of FIG. 2 to explain an example of the structure of the heater.

FIG. 8 is a cross-sectional view of a heater assembly for an aerosol generating device according to an embodiment, taken along the line A-A' of FIG. 2 to explain an example of a heating method of a heater.

FIG. 9 is a cross-sectional view of the heater assembly for an aerosol generating device according to an embodiment based on the cross-section line A-A' of FIG. 2 to explain another example of the heating method of the heater.

FIG. 10 is a cross-sectional view of the heater assembly for an aerosol generating device according to an embodiment, taken along the line B-B' of FIG. 2.

Figure 11 is a perspective view of a combination of a holder, a first cover, a support unit, and a heater in a heater assembly for an aerosol generating device according to an embodiment.

Figure 12 is a perspective view of a support unit, a heater, an antenna, and a sensing unit combined in a heater assembly for an aerosol generating device according to an embodiment.

Figure 13 is a perspective view of a first cover and an antenna combined in a heater assembly for an aerosol generating device according to an embodiment.

Figure 14 is a perspective view of an antenna, a sensing unit, and a shielding unit combined in a heater assembly for an aerosol generating device according to an embodiment.

Figure 15 is a perspective view of the second cover, support unit, heater, antenna, sensing unit, and sealing part combined to explain how the sealing part is coupled to the second cover.

Figure 16 is an exploded perspective view of a second cover and a sealing portion in a heater assembly for an aerosol generating device according to an embodiment.

FIG. 17 is a diagram illustrating the second cover of FIG. 16.

FIG. 18A is a diagram illustrating the first sealing member of FIG. 16, and FIG. 18B is a diagram illustrating the second sealing member of FIG. 16.

FIG. 19 is a cross-sectional view of the heater assembly for an aerosol generating device according to an embodiment, taken along the cross-section line C-C' of FIG. 15.

20 and 21 illustrate examples of aerosol-generating articles according to one embodiment.

The support unit and the heater may be insert injection.

The heater may have a cross-sectional area extending in the first direction when cut based on a plane passing through each of the first direction in which the support unit extends and the second direction crossing the first direction.

The frequency of the magnetic field applied to the susceptor may be 5MHz or more.

The gap between adjacent parts of the heater disposed on the first side of the support unit may be different from the gap between adjacent parts of the heater disposed on the second side of the support unit.

The heater may include a first heater and a second heater disposed in different parts of the support unit.

The heater assembly for an aerosol generating device according to an embodiment may further include a sensing unit supported on the support unit inside the body and detecting the temperature of at least one of the support unit or the heater.

The heater assembly for an aerosol generating device according to an embodiment may further include a sensing connection unit disposed at a portion where the support unit and the sensing unit are connected and having a metal material.

The first cover may further include a cover insulation member extending along a direction in which the heater extends and disposed between the heater and the body.

When the first cover is coupled to the body, the cover insulation member may be inserted into the inside of the body and surround a portion of the outside of the heater.

The heater assembly for an aerosol generating device according to one embodiment may further include an antenna disposed inside the body to surround at least a portion of the outside of the heater to recognize whether the aerosol generating article is accommodated in the receiving space. there is.

The heater assembly for an aerosol generating device according to one embodiment may further include a shielding unit disposed between the antenna and the body to surround at least a portion of the outside of the antenna.

A heater assembly for an aerosol generating device according to one embodiment includes a second cover coupled to the body to form the receiving space together with the body and the first cover; and a sealing part that is inserted into the through hole formed in the second cover and seals the through hole.

The terms used in the embodiments are general terms that are currently widely used as much as possible while considering the function in the present invention, but this may vary depending on the intention or precedent of a person working in the art, the emergence of new technology, etc. In addition, in certain cases, there are terms arbitrarily selected by the applicant, and in this case, the meaning will be described in detail in the description of the relevant invention. Therefore, the terms used in the present invention should be defined based on the meaning of the term and the overall content of the present invention, rather than simply the name of the term.

When it is said that a part "includes" a certain element throughout the specification, this means that, unless specifically stated to the contrary, it does not exclude other elements but may further include other elements. Additionally, terms such as “-unit” and “-module” used in the specification refer to a unit that processes at least one function or operation, which may be implemented as hardware or software, or as a combination of hardware and software.

As used herein, when an expression such as “at least any one” precedes arranged elements, it modifies all of the arranged elements rather than each arranged element. For example, the expression “at least one of a, b, and c” should be interpreted to include a, b, c, or a and b, a and c, b and c, or a and b and c. do.

In one embodiment, the aerosol generating device may be a device that generates an aerosol by electrically heating a cigarette accommodated in an internal space.

The aerosol generating device may include a heater. In one embodiment, the heater may be an electrically resistive heater. For example, a heater may include an electrically conductive track, and the heater may be heated when a current flows through the electrically conductive track.

The heater may include a tubular heating element, a plate-shaped heating element, a needle-shaped heating element, or a rod-shaped heating element, and may heat the inside or outside of the cigarette depending on the shape of the heating element.

The cigarette may include a tobacco rod and a filter rod. Tobacco rods can be made from sheets, strands, or tobacco sheets can be made from cut fillers. Additionally, the tobacco rod may be surrounded by a heat-conducting material. For example, the heat-conducting material may be a metal foil such as aluminum foil, but is not limited thereto.

The filter rod may be a cellulose acetate filter. A filter rod may consist of at least one segment. For example, a filter rod may include a first segment that cools the aerosol and a second segment that filters certain components contained within the aerosol.

In another embodiment, an aerosol generating device may be a device that generates an aerosol using a cartridge containing an aerosol generating material.

An aerosol generating device may include a cartridge holding an aerosol generating material and a body supporting the cartridge. The cartridge may be detachably coupled to the main body, but is not limited thereto. The cartridge may be formed or assembled integrally with the main body, and may be fixed so as not to be detached or detached by the user. The cartridge may be mounted on the main body while containing the aerosol-generating material therein. However, it is not limited to this, and an aerosol-generating material may be injected into the cartridge while the cartridge is coupled to the main body.

The cartridge may contain an aerosol-generating material in any one of various states, such as liquid state, solid state, gas state, and gel state. Aerosol-generating materials may include liquid compositions. For example, the liquid composition may be a liquid containing tobacco-containing substances, including volatile tobacco flavor components, or may be a liquid containing non-tobacco substances.

The cartridge is operated by an electric signal or wireless signal transmitted from the main body, thereby converting the phase of the aerosol-generating material inside the cartridge into a gas phase to generate an aerosol. Aerosol may refer to a gas in a mixed state of vaporized particles generated from an aerosol-generating material and air.

In another embodiment, an aerosol generating device may heat a liquid composition to generate an aerosol, and the generated aerosol may pass through a cigarette and be delivered to a user. That is, the aerosol generated from the liquid composition can move along the airflow passage of the aerosol generating device, and the airflow passage can be configured to allow the aerosol to pass through the cigarette and be delivered to the user.

In another embodiment, the aerosol generating device may be a device that generates an aerosol from an aerosol generating material using an ultrasonic vibration method. At this time, the ultrasonic vibration method may refer to a method of generating an aerosol by atomizing the aerosol-generating material with ultrasonic vibration generated by a vibrator.

The aerosol generating device may include a vibrator, and may generate short-period vibration through the vibrator to atomize the aerosol-generating material. The vibration generated from the vibrator may be ultrasonic vibration, and the frequency band of the ultrasonic vibration may be from about 100 kHz to about 3.5 MHz, but is not limited thereto.

The aerosol generating device may further include a wick that absorbs the aerosol generating material. For example, the wick may be arranged to surround at least one area of the vibrator or may be arranged to contact at least one area of the vibrator.

As a voltage (e.g., alternating voltage) is applied to the vibrator, heat and/or ultrasonic vibration may be generated from the vibrator, and the heat and/or ultrasonic vibration generated from the vibrator may be transmitted to the aerosol-generating material absorbed by the wick. . The aerosol-generating material absorbed into the wick may be converted into a gas phase by heat and/or ultrasonic vibration transmitted from the vibrator, and as a result, an aerosol may be generated.

For example, the viscosity of the aerosol-generating material absorbed into the wick may be lowered by the heat generated from the vibrator, and the aerosol-generating material with the lowered viscosity due to ultrasonic vibration generated from the vibrator may be converted into fine particles, thereby generating an aerosol. , but is not limited to this.

In another embodiment, the aerosol generating device may be a device that generates an aerosol by heating an aerosol generating article accommodated in the aerosol generating device using induction heating.

The aerosol generating device may include a susceptor and a coil. In one embodiment, the coil may apply a magnetic field to the susceptor. As power is supplied to the coil from the aerosol generating device, a magnetic field may be formed inside the coil. In one embodiment, the susceptor may be a magnetic material that generates heat by an external magnetic field. As the susceptor is located inside the coil and a magnetic field is applied, the aerosol-generating article may be heated by generating heat. Additionally, optionally, the susceptor may be located within the aerosol-generating article.

In another embodiment, the aerosol generating device may further include a cradle.

The aerosol generating device can form a system with a separate cradle. For example, the cradle can charge the battery of an aerosol generating device. Alternatively, the heater may be heated while the cradle and the aerosol generating device are combined.

Below, with reference to the attached drawings, embodiments of the present disclosure will be described in detail so that those skilled in the art can easily implement them. The present disclosure may be implemented in a form that can be implemented in the aerosol generating devices of the various embodiments described above, or may be implemented in a variety of different forms, and is not limited to the embodiments described herein.

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

Referring to FIG. 1, the aerosol generating device 1 according to one embodiment may include a heater assembly 10, a battery 20, a control unit 30, and a vaporizer 40. However, the components of the aerosol generating device 1 are not limited to this, and depending on the embodiment, at least one component (e.g., vaporizer 40) among the above-described components is omitted or another component is added. It could be.

The aerosol generating device 1 according to one embodiment may generate an aerosol by heating the aerosol generating article 2 accommodated in the aerosol generating device 1 using an induction heating method. The induction heating method may refer to a method of generating heat in a magnetic material by applying an alternating magnetic field whose direction changes periodically to a magnetic material that generates heat by an external magnetic field.

When an alternating magnetic field is applied to a magnetic material, energy loss due to eddy current loss and hysteresis loss may occur in the magnetic material, and the lost energy may be emitted from the magnetic material as heat energy. The larger the amplitude or frequency of the alternating magnetic field applied to the magnetic material, the more heat energy can be emitted from the magnetic material. The aerosol generating device 1 according to one embodiment can emit heat energy from a magnetic material by applying an alternating magnetic field to the magnetic material, and transfer the heat energy emitted from the magnetic material to an aerosol generating article.

A magnetic material that generates heat by an external magnetic field may be a susceptor. The susceptor may be provided in the aerosol generating device 1 in the form of a piece, flake, or strip.

According to one embodiment, the susceptor may be disposed inside the heater assembly 10 and may be disposed to surround the aerosol-generating article 2 accommodated in the receiving space. In this case, the susceptor may be formed as an overall hollow cylinder, but the shape is not limited thereto.

According to another embodiment, the susceptor may be disposed inside the aerosol-generating article (2) accommodated in the aerosol-generating device (1).

At least a portion of the susceptor may be formed of a ferromagnetic substance. For example, the susceptor may include metal or carbon. The susceptor may include at least one of ferrite, ferromagnetic alloy, stainless steel, and aluminum (Al). In addition, the susceptor is made of ceramics such as graphite, molybdenum, silicon carbide, niobium, nickel alloy, metal film, zirconia, etc. It may include at least one of a transition metal such as (Ni) or cobalt (Co), or a metalloid such as boron (B) or phosphorus (P).

An aerosol-generating device (1) according to one embodiment may accommodate an aerosol-generating article (2). A space for accommodating the aerosol generating article 2 may be formed in the aerosol generating device 1 according to one embodiment. Here, a heater assembly 10 for an aerosol generating device according to an embodiment may be disposed in the space of the aerosol generating device 1 for accommodating the aerosol generating article 2. For example, the heater assembly 10 may include a cylindrical receiving space therein for receiving the aerosol generating article 2. Accordingly, when the aerosol-generating article 2 is accommodated in the aerosol-generating device 1, the aerosol-generating article 2 can be accommodated in the receiving space of the heater assembly 10. A detailed description of the aerosol-generating article 2 accommodated in the aerosol-generating device 1 according to one embodiment will be described later.

Components for operating the aerosol generating device 1 may be disposed inside the aerosol generating device 1 according to an embodiment. For example, a heater assembly 10, a battery 20, and a control unit 30 may be disposed inside the aerosol generating device 1. However, the heater assembly 10, battery 20, and control unit 30 are only examples of components disposed inside the aerosol generating device 1, and the inside of the aerosol generating device 1 includes the above-described components. In addition to the elements, other components (e.g. user interface, sensors, etc.) may be further placed.

The heater assembly 10 for an aerosol generating device according to one embodiment may surround at least a portion of the aerosol generating article 2 accommodated in the aerosol generating device 1. For example, a heater assembly 10 for an aerosol generating device according to one embodiment may surround a tobacco medium included in an aerosol generating article 2. Accordingly, heat can be transferred from the heater assembly 10 to the tobacco medium more efficiently.

The heater assembly 10 for an aerosol generating device according to one embodiment can heat the aerosol generating article 2 accommodated in the aerosol generating device 1. As described above, the heater assembly 10 for an aerosol generating device according to one embodiment can heat the aerosol generating article 2 by induction heating. According to one embodiment, the heater assembly 10 may apply an alternating magnetic field to the susceptor included in the aerosol-generating article 2 to generate heat in the susceptor.

Battery 20 can supply power to aerosol generating device 1. For example, battery 20 can power the coils of heater assembly 10. As another example, the battery 20 may supply power required for the operation of other components of the aerosol generating device 1 (eg, the control unit 30, etc.).

The battery 20 may include a battery unit that supplies direct current to the coil of the heater assembly 10 and a conversion unit that converts the direct current supplied from the battery unit into alternating current supplied to the coil of the heater assembly 10.

The battery unit can supply direct current to the aerosol generating device (1). The battery unit may be, but is not limited to, a lithium iron phosphate (LiFePO4) battery. For example, the battery unit may be a lithium cobalt oxide (LiCoO2) battery, a lithium titanate battery, a lithium polymer (LiPoly) battery, etc.

The conversion unit may include a low-pass filter that filters the direct current supplied from the battery and outputs the alternating current supplied to the heater assembly 10. The converter may further include an amplifier for amplifying direct current supplied from the battery unit. For example, the conversion unit can be implemented through a low-pass filter that constitutes the load network of a class-D amplifier.

The control unit 30 may control the overall operation of the aerosol generating device 1. The control unit 30 may be implemented as an array of multiple logic gates, or as a combination of a general-purpose microprocessor and a memory storing a program that can be executed on the microprocessor, but is not limited to this.

According to one embodiment, the control unit 30 may control the power supplied to the heater assembly 10. Here, the control target of the control unit 30 may be the coil of the heater assembly 10. The control unit 30 may control the battery 20 to adjust the power supplied to the coil of the heater assembly 10. For example, the controller 30 may perform control to keep the temperature at which the coil heats the aerosol-generating article 2 constant based on the temperature of the coil of the heater assembly 10.

The aerosol generating device 1 according to one embodiment may further include a vaporizer 40.

The vaporizer 40 may generate an aerosol by heating an aerosol-generating material in a liquid state, and the generated aerosol may pass through the aerosol-generating article 2 and be delivered to the user. In other words, the aerosol generated by the vaporizer 40 can move along the airflow passage of the aerosol generating device 1, and the airflow passage allows the aerosol generated by the vaporizer 40 to move the aerosol generating article 2. It can be configured to pass through and be delivered to the user.

For example, the vaporizer 40 may include, but is not limited to, a reservoir for storing aerosol-generating material in a liquid state, a liquid delivery means, and a heating element. For example, the reservoir, liquid delivery means and heating element may be included in the aerosol generating device 1 as independent modules.

The storage unit may store aerosol-generating material in a liquid state. For example, the aerosol-generating material in the liquid state may be a liquid containing tobacco-containing substances including volatile tobacco flavor components, or may be a liquid containing non-tobacco substances. The storage unit may be manufactured to be detachable from/attached to the vaporizer 40, or may be manufactured integrally with the vaporizer 40.

For example, aerosol-generating substances may include water, solvents, ethanol, plant extracts, fragrances, flavoring agents, or vitamin mixtures. Fragrances may include, but are not limited to, menthol, peppermint, spearmint oil, and various fruit flavor ingredients. Flavoring agents may include ingredients that can provide various flavors or flavors to the user. The vitamin mixture may be, but is not limited to, a mixture of at least one of vitamin A, vitamin B, vitamin C, and vitamin E. Additionally, aerosol-generating materials may include aerosol formers such as glycerin and propylene glycol.

The liquid delivery means may deliver the aerosol-generating material from the reservoir to the heating element. For example, the liquid delivery means may be, but is not limited to, a wick such as cotton fiber, ceramic fiber, glass fiber, or porous ceramic.

The heating element is an element for heating the aerosol-generating material delivered by the liquid delivery means. For example, the heating element may be a metal heating wire, a metal heating plate, a ceramic heater, etc., but is not limited thereto. Additionally, the heating element may be composed of a conductive filament, such as a nichrome wire, and may be arranged in a structure wound around the liquid delivery means. The heating element can be heated by supplying an electric current and transfer heat to the aerosol-generating material in contact with the heating element, thereby heating the aerosol-generating material. As a result, aerosols may be generated.

For example, the vaporizer 40 may be referred to as a cartomizer or an atomizer, but is not limited thereto.

If the aerosol generating device 1 according to one embodiment further includes a vaporizer 40, the battery 20 may supply power so that the heater assembly 10 or the vaporizer 40 can be heated, The control unit 30 may control the power supplied to the heater assembly 10 or the vaporizer 40.

When the aerosol-generating article (2) is inserted into the aerosol-generating device (1) according to one embodiment, the aerosol-generating device (1) operates the heater assembly (10) and/or the vaporizer (40), so that the aerosol-generating article ( 2) and/or generate an aerosol from the vaporizer 40. Aerosol generated by heater assembly 10 and/or vaporizer 40 may pass through aerosol generating article 2 and be delivered to the user.

Referring to FIG. 2, the heater assembly 10 for an aerosol generating device according to one embodiment may include a body 100, a holder 150, a first cover 200, and a second cover 300. .

An accommodating space in which the aerosol-generating article 2 is accommodated may be formed in the internal space of the body 100. Here, a heater may be disposed in the receiving space of the body 100 where the aerosol generating article 2 is accommodated. That is, the internal space of the body 100 accommodates the aerosol-generating article 2 and may be a space in which a magnetic field for heating the aerosol-generating article 2 is formed. Once the aerosol-generating article 2 is received in the receiving space of the body 100, the heater may be arranged to surround the aerosol-generating article 2.

The body 100 may function as the main body of the heater assembly 10 for an aerosol generating device according to an embodiment, and the first cover 200 and the second cover 300 may be coupled to the body 100. . The first cover 200 and the second cover 300 may be coupled to the body 100 and supported on the body 100 . The body 100 may be formed as an overall hollow cylinder, but the shape is not limited thereto.

The holder 150 is disposed on one side (eg, +z direction) of the body 100 and can accommodate the function of supporting the aerosol-generating article 2 accommodated in the receiving space of the body 100. The holder 150 may be formed with an insertion hole 150a into which the aerosol-generating article 2 can be inserted, and the insertion hole 150a may communicate with the receiving space of the body 100. The aerosol-generating article 2 may be received into the receiving space of the body 100 through the insertion hole 150a.

The holder 150 may include a ridge 150b that supports the aerosol-generating article 2 inserted into the insertion hole 150a. The ridge 150b may protrude toward the insertion hole 150a and may contact the aerosol-generating article 2 inserted into the insertion hole 150a. In one embodiment, a plurality of ridges 150b may be spaced apart from each other along the circumferential direction of the insertion hole 150a.

The holder 150 may be coupled to the body 100 by being coupled to the first cover 200 . The holder 150 may include a holder protrusion 150c that protrudes toward the first cover 200. As the holder protrusion 150c is inserted into the first cover 200, the holder 150 may be coupled to the first cover 200. The holder protrusions 150c may be disposed one on each side of the insertion hole 150a.

The first cover 200 may be disposed on one side (eg, +z direction) of the body 100. The first cover 200 may be coupled to one side of the body 100 and cover one side of the receiving space of the body 100.

The second cover 300 may be disposed on the other side (eg, -z direction) of the body 100. The second cover 300 may be coupled to the other side of the body 100 and cover the other side of the receiving space of the body 100.

Referring to FIG. 3, the heater assembly 10 for an aerosol generating device according to one embodiment may include a body 100, a first cover 200, and a second cover 300. At least one of the components of the heater assembly 10 for an aerosol generating device may be the same or similar to at least one of the components of the heater assembly 10 for an aerosol generating device shown in FIG. 2, and may be duplicated below. The explanation is omitted.

The second cover 300 may include a second cover body 310, a second cover protruding member 320, a passing hole 330, and a sealing insertion groove 340. However, the components of the second cover 300 are not limited to this, and depending on the embodiment, at least one component (e.g., sealing insertion groove 340) of the above-described components is omitted or other components are omitted. It may be added.

The second cover body 310 may function as the main body of the second cover 300 and may be arranged to surround at least a portion of the body 100. The second cover body 310 may include a protrusion protruding toward the body 100, and the body 100 may include an insertion portion into which the protrusion of the second cover body 310 is inserted. As the protrusion of the second cover body 310 is inserted into the insertion portion of the body 100, the second cover 300 may be coupled to the body 100. However, the method of coupling the second cover 300 and the body 100 is not limited to this.

The second cover protruding member 320 may protrude from the second cover body 310 toward one side (eg, -z direction). A sealing part, which will be described later, may be inserted or fitted into the second cover protruding member 320. However, the method of coupling the second cover protruding member 320 and the sealing portion is not limited to this.

At least a portion of the sealing part, which will be described later, can be inserted into the through hole 330, and a line for supplying power to the heater 500 can pass through it. As at least a portion of the sealing part is inserted into the passage hole 330, one side (eg, -z direction) of the second cover 300 may be sealed. The passing hole 330 may be formed to penetrate the second cover body 310 and the second cover protruding member 320.

At least a portion of the sealing part, which will be described later, may be inserted into the sealing insertion groove 340. As at least a portion of the sealing portion is inserted into the sealing insertion groove 340, the second cover 300 and the sealing portion may be coupled. The sealing insertion groove 340 may be formed in the second cover protruding member 320. In one embodiment, the sealing insertion groove 340 may be formed one on each side of the second cover protruding member 320.

FIG. 4 is an exploded perspective view of a heater assembly for an aerosol generating device according to an embodiment shown in FIG. 2. In Figure 4, the heater 500 disposed in the support unit 400 is shown as a dotted line.

Referring to FIG. 4, the heater assembly 10 for an aerosol generating device according to an embodiment includes a body 100, a holder 150, a first sealing ring 160, a second sealing ring 170, and a third seal. Ring 180, first cover 200, second cover 300, support unit 400, heater 500, antenna 600, sensing unit 700, shielding unit 800, and sealing unit. It may include (900).

At least one of the components of the heater assembly 10 for an aerosol generating device according to an embodiment is one of the components (e.g., body 100) of the heater assembly 10 for an aerosol generating device shown in FIGS. 2 and 3. , it may be the same as or similar to at least one of the holder 150, the first cover 200, and the second cover 300, and overlapping descriptions will be omitted below.

Meanwhile, the components of the heater assembly 10 for an aerosol generating device according to an embodiment are not limited thereto, and according to the embodiment, at least one of the components described above (e.g., the first seal ring 160) ) may be omitted, or other components (e.g. susceptor) may be added.

The first sealing ring 160 may be disposed between the holder 150 and the first cover 200. The first sealing ring 160 is disposed between the holder 150 and the first cover 200 and can perform the function of sealing the space between the holder 150 and the first cover 200. The first sealing ring 160 may be formed in an overall circular ring shape, but is not limited thereto.

The second sealing ring 170 may be disposed on the first cover 200. The second sealing ring 170 may be located at the article insertion portion formed in the first cover 200 and may be arranged to surround the aerosol-generating article 2 inserted into the article insertion portion. That is, the second sealing ring 170 may function to seal between the aerosol-generating article 2 inserted into the article insertion portion and the first cover 200. The second sealing ring 170 may be formed in an overall circular ring shape, but is not limited thereto.

The third sealing ring 180 may be located inside the support unit 400 and below (eg, -z direction) the aerosol-generating article 2 accommodated in the receiving space of the body 100. The third sealing ring 180 may perform the function of sealing the inner space of the support unit 400. The third sealing ring 180 may be formed in an overall circular ring shape, but is not limited thereto.

Each of the third sealing ring 180, the second sealing ring 170, and the first sealing ring 160 may include a rubber material.

The support unit 400 is disposed in the receiving space of the body 100 and may perform the function of supporting the heater 500. When the aerosol-generating article 2 is accommodated in the receiving space of the body 100, the support unit 400 may be arranged to surround the aerosol-generating article 2. The support unit 400 may be referred to as a bobbin and may be formed as an overall hollow cylinder, but its shape is not limited to this as long as it can support the heater 500.

The heater 500 may be disposed in the receiving space of the body 100 to heat the aerosol-generating article 2 accommodated in the receiving space. When the aerosol-generating article 2 is accommodated in the receiving space of the body 100, the heater 500 may be arranged to surround the aerosol-generating article 2.

The heater 500 may be a coil that applies an alternating magnetic field to the susceptor. When power is supplied to the coil from a battery, a magnetic field may be formed inside the coil. When alternating current is applied to the coil, the direction of the magnetic field formed inside the coil may continuously change. When the susceptor is located inside the coil and exposed to an alternating magnetic field whose direction changes periodically, the susceptor may generate heat, and the aerosol-generating article 2 accommodated in the receiving space of the body 100 may be heated.

For example, the coil may generate an alternating magnetic field to heat a susceptor disposed within the aerosol-generating article 2. The susceptor generated by the heater 500 heats the aerosol-generating article 2, thereby generating an aerosol.

The heater 500 may extend in the longitudinal direction (eg, z-axis direction) of the aerosol generating device 1. For example, the heater 500 may be extended to a length corresponding to the length of the support unit 400, or may be extended to a length shorter than the length of the support unit 400.

The heater 500 may be placed in a position suitable for applying an alternating magnetic field to the susceptor. For example, the heater 500 may be placed in the support unit 400 at a position corresponding to the susceptor. By adjusting the size and arrangement of the heater 500, the efficiency with which the alternating magnetic field of the heater 500 is applied to the susceptor can be improved.

If the amplitude or frequency of the alternating magnetic field formed by the heater 500 is changed, the degree to which the heater 500 heats the aerosol-generating article 2 may also be changed. Since the amplitude or frequency of the magnetic field caused by the heater 500 can be changed by the power applied to the heater 500, the aerosol generating device 1 adjusts the power applied to the heater 500 to control the aerosol generating article 2. ) heating can be controlled. For example, the aerosol generating device 1 may control the amplitude and frequency of the alternating current applied to the heater 500.

As one example, the heater 500 may be implemented as a solenoid. The heater 500 may be a solenoid wound along the direction in which the support unit 400 extends, and a susceptor and an aerosol generating article 2 may be located in the inner space of the solenoid. The material of the conductor constituting the solenoid may be copper (Cu). However, the solenoid is not limited thereto, and an alloy containing any one or at least one of silver (Ag), gold (Au), aluminum (Al), tungsten (W), zinc (Zn), and nickel (Ni) is used. It can be the material of the conductors that make up the.

According to one embodiment, the heater 500 may be disposed inside the support unit 400. That is, the heater 500 may be disposed inside the support unit 400 and formed integrally with the support unit 400. For example, the heater 500 may be insert-injected with the support unit 400. Accordingly, according to the heater assembly 10 for an aerosol generating device according to an embodiment, the heater 500 and the support unit 400 can be manufactured together through a simple manufacturing method called insert injection. Accordingly, the productivity of the heater assembly 10 can be improved.

The insert injection process may refer to a process of injecting resin into a mold with a separate material, such as metal, already inserted into the mold. Through the insert injection process, products that combine metal and resin (e.g., thermoplastic plastic) can be manufactured. For example, if the heater 500 contains metal and the support unit 400 contains resin, the heater 500 made of metal is placed in a mold, and then the resin is injected into the mold to form the support unit 400. ) and heater 500 can be manufactured together.

The antenna 600 is disposed in the receiving space of the body 100 and can recognize whether the aerosol-generating article 2 is received in the receiving space of the body 100. Information detected by the antenna 600 may be transmitted to the control unit or memory of the aerosol generating device 1.

As an example, the aerosol-generating article 2 may include a metal material such as aluminum, and the antenna 600 detects a change in inductance that occurs as the aerosol-generating article 2 is accommodated in the receiving space of the body 100. It may include an inductance sensor that detects.

As another example, the antenna 600 may be a capacitance sensor or magnetic proximity sensor capable of detecting changes in electromagnetic properties caused by the aerosol-generating article 2 adjacent to the receiving space of the body 100. It may include a proximity sensor). However, it is not necessarily limited thereto, and the antenna 600 may include other types of sensors such as light sensors, temperature sensors, and resistance sensors.

The sensing unit 700 is disposed in the receiving space of the body 100 and can sense the temperature inside the receiving space of the body 100. In one embodiment, the sensing unit 700 may detect the temperature of at least one of the heater 500 and the susceptor. Information detected by the sensing unit 700 may be transmitted to the control unit or memory of the aerosol generating device 1.

The sensing unit 700 may be a thermocouple wire, but can be used without limitation as long as it can detect the internal temperature of the receiving space.

The shielding unit 800 may be arranged in the receiving space of the body 100 to surround the support unit 400 and the heater 500. The shielding unit 800 may be formed in the overall shape of a hollow cylinder, but the shape is not limited thereto.

The sealing portion 900 may be coupled to the second cover 300 to perform the function of sealing one side (eg, -z direction) of the second cover 300. The sealing unit 900 may include a first sealing member 910 and a second sealing member 920, and a detailed description thereof will be provided later.

Referring to Figure 5, the heater assembly 10 for an aerosol generating device according to one embodiment includes a body 100, a holder 150, a second sealing ring 170, a third sealing ring 180, and a first cover. (200), second cover 300, support unit 400, sensing connection unit 450, heater 500, antenna 600, sensing unit 700, shielding unit 800, and sealing unit ( 900).

At least one of the components of the heater assembly 10 for an aerosol generating device according to an embodiment may be the same or similar to at least one of the components of the heater assembly 10 for an aerosol generating device shown in FIG. 4, , Overlapping descriptions will be omitted below.

Meanwhile, the components of the heater assembly 10 for an aerosol generating device according to an embodiment are not limited thereto, and according to the embodiment, at least one of the components described above (e.g., the first seal ring 160) ) may be omitted, or other components may be added.

The body 100 is disposed on the outermost side among the components of the heater assembly 10 (e.g., support unit 400, heater 500, antenna 600, detection unit 700, and shielding unit 800). It can be. That is, a support unit 400, a heater 500, an antenna 600, a sensing unit 700, and a shielding unit 800 may be disposed inside the body 100. The body 100 may include materials such as stainless steel (SUS: Steel Use Stainless) and aluminum.

The upper part of the body 100 (e.g., the part facing the +z direction) and the first cover 200 are coupled, and the lower part of the body 100 (e.g., the part facing the -z direction) and the second cover 300 As the is combined, a receiving space 10a for accommodating the aerosol-generating article 2 may be formed inside the body 100.

An aerosol-generating article 2 and a susceptor may be disposed in the receiving space 10a. In one embodiment, when the heater assembly 10 includes a susceptor, the aerosol-generating article 2 can be received inside the susceptor and heated by the susceptor. In another embodiment, when a susceptor is disposed inside the aerosol-generating article 2, the heater 500 may be located at a position corresponding to the susceptor and generate heat by applying a magnetic field to the susceptor. .

When a susceptor is disposed inside the aerosol generating article 2, the heater assembly 10 for an aerosol generating device according to one embodiment does not include a separate susceptor, so the space where the susceptor is disposed may be omitted. and can be implemented in a structure where other components can be placed in the omitted space. Accordingly, space utilization of the heater assembly 10 for an aerosol generating device according to an embodiment can be improved.

Although not shown, at least a portion of the inner surface of at least one of the body 100, the first cover 200, and the second cover 300 has a space ( 10a) a reflective material may be deposited. Accordingly, the possibility that the heat generated by the heater 500 and/or the susceptor is immediately released to the outside of the heater assembly 10 is reduced, so the insulation performance of the heater assembly 10 can be improved. For example, the material deposited on the inner surface of at least one of the body 100, the first cover 200, and the second cover 300 may include a metal material such as silver (Ag).

The holder 150 may be coupled to the upper portion (eg, the portion facing the +z direction) of the first cover 200. The aerosol-generating article 2 inserted through the insertion hole 150a of the holder 150 may pass through the article insertion portion 240 formed in the first cover 200 and be accommodated in the receiving space 10a. The article insertion portion 240 may be formed to penetrate the upper and lower surfaces of the first cover 200 and may be connected to each of the insertion hole 150a and the receiving space 10a of the holder 150.

As the holder protrusion 150c of the holder 150 is inserted into the holder insertion portion 250 formed in the first cover 200, the holder 150 may be coupled to the first cover 200. The holder insertion portion 250 may be formed through machining a groove to a predetermined depth from the upper surface of the first cover 200.

The first cover 200 may be coupled to one side (eg, +z direction) of the body 100. As one side of the body 100 is inserted into the first body insertion portion 260 formed in the first cover 200, the first cover 200 may be coupled to the body 100 and the receiving space 10a One side of may be covered by the first cover 200. The first body insertion portion 260 may be formed through machining a groove to a predetermined depth from the lower surface of the first cover 200.

The first cover 200 may include a first cover body 210 and a cover insulation member 220.

The first cover body 210 may function as the main body of the first cover 200. An article insertion portion 240 is formed on the inside of the first cover body 210, so that the aerosol-generating article 2 inserted through the insertion hole 150a passes through the first cover body 210 into the receiving space ( 10a) can be accepted. A holder insertion portion 250 and a first body insertion portion 260 may be formed in the first cover body 210 at positions spaced apart from each other.

The cover insulation member 220 may extend from the first cover body 210 in one direction (eg, -z direction) and may be disposed outside the heater 500 disposed in the support unit 400. Accordingly, the cover insulation member 220 may function as a physical barrier that prevents heat generated in the receiving space 10a from being released to the outside of the heater assembly 10. Therefore, the heater assembly 10 for an aerosol generating device according to one embodiment can improve insulation performance by using a double physical barrier through the cover insulation member 220 in addition to the body 100.

In one embodiment, the cover insulation member 220 may be formed integrally with the first cover body 210.

The second cover 300 may be coupled to the other side (eg, -z direction) of the body 100. As the other side of the body 100 is inserted into the second body insertion portion 310a formed inside the second cover 300, the second cover 300 can be coupled to the body 100 and the receiving space ( The other side of 10a) may be covered by the second cover 300.

The second cover 300 may include a locking member 310b inserted into the cover insertion groove 100a of the body 100. As the locking member 310b is inserted into the cover insertion groove 100a, the coupled state between the second cover 300 and the body 100 can be maintained. The locking member 310b may protrude toward the second body insertion portion 310a along the circumferential direction of the second cover body 310, and the cover insertion groove 100a penetrates the outer and inner surfaces of the body 100. It can be formed. The locking member 310b may be formed integrally with the second cover body 310.

The support unit 400 is arranged to surround the receiving space 10a and can support the heater 500 that generates heat by the susceptor disposed in the receiving space 10a. The support unit 400 may be placed inside the shielding unit 800 and may be supported by the body 100 and the first cover 200.

The sensing connection unit 450 may be disposed on the support unit 400. The sensing connection unit 450 may perform a function to connect the sensing unit 700 to the support unit 400. Accordingly, the heater assembly 10 for an aerosol generating device according to an embodiment has the sensing unit 700 easily detecting the temperature of the heater 500 disposed in the support unit 400 through the sensing connection unit 450. It can be implemented as a structure. For example, the sensing connection unit 450 may be disposed on the support unit 400 so as to contact the heater 500.

In one embodiment, the sensing connection unit 450 may be disposed on at least a portion of the inner surface 400a of the support unit 400, and the sensing connection unit 450 and at least a portion of the support unit 400 may be insert-injected together. (Insert injection) can be done. The sensing connection unit 450 may include a metal material, such as copper (Cu), silver (Ag), gold (Au), aluminum (Al), tungsten (W), zinc (Zn), and nickel. It may include at least one of (Ni).

The heater 500 may be disposed in the support unit 400 to generate heat in the susceptor disposed in the receiving space 10a. The heater 500 is a plane that passes through each of the first direction in which the support unit 400 extends (e.g., z-axis direction) and the second direction (e.g., x-axis direction) crossing the direction in which the support unit 400 extends. When cut based on (e.g. xz plane), it can be formed into a shape with a circular cross-sectional area. That is, when the heater 500 is viewed from the y-axis direction, the heater 500 may be formed to have a circular cross-sectional shape.

According to one embodiment, the heater 500 may be disposed between the inner surface 400a of the support unit 400 and the outer surface 400b of the support unit 400. That is, based on the direction (e.g., x-axis direction) across the direction in which the heater assembly 10 extends (e.g., z-axis direction), the heater 500 may be arranged to completely overlap the support unit 400. there is. In this case, the heater 500 may be placed in the support unit 400 so that it does not protrude outward from the outer surface 400b of the support unit 400.

Accordingly, according to the heater assembly 10 for an aerosol generating device according to an embodiment, the heater 500 is not disposed on the outer surface 400b of the support unit 400, so the outer surface 400b of the support unit 400 Space for other components of the aerosol generating device 1 (eg, shielding unit 800) can be secured. Accordingly, since the space utilization inside the body 100 can be improved, the heater assembly 10 can be miniaturized.

Additionally, the heater assembly 10 for an aerosol generating device according to one embodiment may be implemented in a structure in which the overall separation distance between the heater 500 and the receiving space 10a is reduced. Accordingly, since the susceptor disposed in the receiving space 10a can be easily affected by the magnetic field generated by the heater 500, the heating efficiency of the susceptor can be improved.

The antenna 600 is arranged to surround the receiving space 10a and can recognize whether the aerosol-generating article 2 is accommodated in the receiving space 10a. The antenna 600 may be disposed inside the body 100, between the cover insulation member 220 and the shielding unit 800.

The sensing unit 700 is disposed on one side (eg, +x direction) of the support unit 400 inside the body 100 and can detect the temperature of at least one of the heater 500 or the susceptor. In one embodiment, the sensing unit 700 can sense the temperature of the heater 500 by contacting the inner surface 400a of the support unit 400. The sensing unit 700 may come into contact with the support unit 400 by contacting the sensing connection unit 450 .

The sensing unit 700 may include a sensing body 710 and a sensing connection portion 720.

The sensing body 710 may function as the main body of the sensing unit 700 and may extend along a direction in which the heater assembly 10 extends (eg, z-axis direction). The sensing body 710 may be disposed between the body 100 and the shielding unit 800. The sensing body 710 may be formed integrally with the sensing connection portion 720.

The sensing connection portion 720 may be a part of the sensing unit 700 connected to the support unit 400. The sensing connection portion 720 includes a first part extending in a direction crossing the direction in which the sensing body 710 extends (e.g., -x direction) and a direction crossing the direction in which the first part extends (e.g., -z direction). ) may include a second part extending to. At least part of the first part may be supported by the support unit 400, and at least part of the second part may be connected to the support unit 400 through the sensing connection unit 450.

The shielding unit 800 is arranged to surround the receiving space 10a inside the body 100 and may be arranged between the support unit 400 and the sensing unit 700. That is, the shielding unit 800 may be disposed outside the support unit 400 where the heater 500 is disposed. Accordingly, the shielding unit 800 may function as a physical barrier that prevents heat generated in the receiving space 10a from being released to the outside of the heater assembly 10. Therefore, the heater assembly 10 for an aerosol generating device according to an embodiment can improve insulation performance by using a triple physical barrier through the shielding unit 800 in addition to the body 100 and the cover insulation member 220. there is.

The shielding unit 800 may include a metal material to prevent heat generated in the receiving space 10a from being emitted to the outside of the heater assembly 10. For example, the shielding unit 800 may include materials such as aluminum (Al), silver (Ag), etc.

Referring to FIG. 6, the heater assembly 10 for an aerosol generating device according to one embodiment includes a body 100, a holder 150, a second sealing ring 170, a third sealing ring 180, and a first cover. (200), second cover 300, support unit 400, sensing connection unit 450, heater 500, antenna 600, sensing unit 700, shielding unit 800, and sealing unit ( 900).

At least one of the components of the heater assembly 10 for an aerosol generating device according to an embodiment may be the same or similar to at least one of the components of the heater assembly 10 for an aerosol generating device shown in FIG. 5, , Overlapping descriptions will be omitted below.

At least a portion of the heater 500 may protrude from the inner surface 400a of the support unit 400 toward the receiving space 10a. That is, based on the direction (e.g., x-axis direction) across the direction in which the heater assembly 10 extends (e.g., z-axis direction), the heater 500 may be arranged to partially overlap the support unit 400. there is. In this case, the heater 500 may be spaced apart from the outer surface 400b of the support unit 400 toward the receiving space 10a so as not to protrude outward from the outer surface 400b of the support unit 400.

In addition, compared to the embodiment shown in FIG. 5, the heater assembly 10 for an aerosol generating device according to one embodiment has a structure in which the overall separation distance between the heater 500 and the receiving space 10a is further reduced. It can be implemented. Accordingly, since the susceptor disposed in the receiving space 10a can be easily affected by the magnetic field generated by the heater 500, the heating efficiency of the susceptor can be further improved.

According to one embodiment, a groove may be formed on the inner surface 400a of the support unit 400, and the heater 500 may be placed in the support unit 400 by being inserted into the groove. The groove formed on the inner surface 400a of the support unit 400 extends along the direction in which the heater assembly 10 extends (e.g., z-axis direction) and extends in the circumferential direction of the inner surface 400a of the support unit 400. It can be formed according to

Although not shown, the heater 500 may be disposed along the inner surface 400a of the support unit 400 while being in contact with the inner surface 400a of the support unit 400.

Referring to FIG. 7, the heater assembly 10 for an aerosol generating device according to an embodiment includes a body 100, a holder 150, a second sealing ring 170, a third sealing ring 180, and a first cover. (200), second cover 300, support unit 400, sensing connection unit 450, heater 500, antenna 600, sensing unit 700, shielding unit 800, and sealing unit ( 900).

The heater 500 is a plane (e.g., xz plane) passing through each of the first direction (e.g., z-axis direction) in which the support unit 400 extends and the second direction (e.g., x-axis direction) crossing the first direction. Based on , it may be formed into a shape having a cross-sectional area extending in one direction. For example, the heater 500 may be formed into a shape with a square cross-sectional area when cut based on the xz plane. That is, when the heater 500 is viewed from the y-axis direction, the heater 500 may be formed to have a rectangular cross-sectional shape.

Accordingly, as the cross-sectional area of the heater 500 increases, the resistance of the heater 500 decreases, so even if the same power is supplied to the heater 500 from the battery, a high current can be applied to the heater 500. Therefore, the heater assembly 10 for an aerosol generating device according to an embodiment can increase the amplitude or frequency of the magnetic field applied to the susceptor, thereby increasing the heat generation amount of the susceptor. For example, in the embodiment shown in FIG. 5, the heater 500 may generate a magnetic field having a frequency of 1 MHz or more and 2 MHz or less, but in the embodiment shown in FIG. 7, the heater 500 may generate a magnetic field with a frequency of 5 MHz or more. It is possible to generate a magnetic field with .

Although not shown, even in the embodiment shown in FIG. 7, at least a portion of the heater 500 may protrude from the inner surface 400a of the support unit 400 toward the receiving space 10a. That is, based on the direction (e.g., x-axis direction) across the direction in which the heater assembly 10 extends (e.g., z-axis direction), the heater 500 may be arranged to partially overlap the support unit 400. there is. In this case, the heater 500 may protrude from the inner surface 400a of the support unit 400 toward the receiving space 10a so as not to protrude outward from the outer surface 400b of the support unit 400.

Referring to FIG. 8, the heater assembly 10 for an aerosol generating device according to an embodiment includes a body 100, a holder 150, a second sealing ring 170, a third sealing ring 180, and a first cover. (200), second cover 300, support unit 400, sensing connection unit 450, heater 500, antenna 600, sensing unit 700, shielding unit 800, and sealing unit ( 900).

The gap between adjacent parts of the heater 500 may be different along the direction in which the support unit 400 extends (eg, z-axis direction). For example, the gap between adjacent parts of the heater 500 disposed on one side (e.g., +z direction) of the support unit 400 is the gap between adjacent parts of the heater 500 disposed on the other side (e.g., -z direction) of the support unit 400. It may be shorter than the gap between adjacent parts of the heater 500 disposed in .

Accordingly, the heater assembly 10 for an aerosol generating device according to an embodiment may set the heating rate between one side of the susceptor disposed inside the heater 500 and the other side of the susceptor to be different. Therefore, the heater assembly 10 for an aerosol generating device according to one embodiment can implement a structure that can heat different parts of the susceptor to different temperatures through one heater 500 connected in series.

Although not shown, even in the embodiment shown in FIG. 8, at least a portion of the heater 500 may protrude from the inner surface 400a of the support unit 400 toward the receiving space 10a. That is, based on the direction (e.g., x-axis direction) across the direction in which the heater assembly 10 extends (e.g., z-axis direction), the heater 500 may be arranged to partially overlap the support unit 400. there is. In this case, the heater 500 may protrude from the inner surface 400a of the support unit 400 toward the receiving space 10a so as not to protrude outward from the outer surface 400b of the support unit 400.

Referring to Figure 9, the heater assembly 10 for an aerosol generating device according to one embodiment includes a body 100, a holder 150, a second sealing ring 170, a third sealing ring 180, and a first cover. (200), second cover 300, support unit 400, sensing connection unit 450, heater 500, antenna 600, sensing unit 700, shielding unit 800, and sealing unit ( 900).

The heater 500 may include a first heater 510 and a second heater 520 disposed in the support unit 400 at positions spaced apart from each other. That is, the first heater 510 and the second heater 520 may be disposed in different parts of the support unit 400. The first heater 510 and the second heater 520 may be coils that generate alternating magnetic fields, and may be connected to a battery and a control unit, respectively.

Accordingly, according to the heater assembly 10 for an aerosol generating device according to an embodiment, the control unit individually controls the first heater 510 and the second heater 520, thereby controlling the first heater 510 and the second heater 520. 2 The frequency or heating speed of the magnetic field generated by the heater 520 can be controlled to be different. Therefore, the heater assembly 10 for an aerosol generating device according to one embodiment can implement a structure that can heat different parts of the susceptor to different temperatures through two heaters 500.

According to one embodiment, the first heater 510 and the second heater 520 may be disposed between the inner surface 400a of the support unit 400 and the outer surface 400b of the support unit 400. That is, based on the direction (e.g., x-axis direction) across the direction in which the heater assembly 10 extends (e.g., z-axis direction), the first heater 510 and the second heater 520 are supported units ( 400) and can be arranged to completely overlap. In this case, the first heater 510 and the second heater 520 may be disposed in the support unit 400 so as not to protrude outward from the outer surface 400b of the support unit 400.

Accordingly, according to the heater assembly 10 for an aerosol generating device according to an embodiment, the first heater 510 and the second heater 520 are not disposed on the outer surface 400b of the support unit 400, so the support Space for other components of the aerosol generating device 1 (eg, shielding unit 800) can be secured on the outer surface 400b of the unit 400. Accordingly, since the space utilization inside the body 100 can be improved, the heater assembly 10 can be miniaturized.

In addition, the heater assembly 10 for an aerosol generating device according to one embodiment may be implemented in a structure in which the overall separation distance between the first heater 510 and the second heater 520 and the accommodation space 10a is reduced. . Accordingly, since the susceptor disposed in the receiving space 10a can be easily affected by the magnetic field generated by the first heater 510 and the second heater 520, the heating efficiency of the susceptor can be improved. .

Although not shown, even in the embodiment shown in FIG. 9, at least a portion of the first heater 510 and the second heater 520 will protrude from the inner surface 400a of the support unit 400 toward the receiving space 10a. You can. That is, based on the direction (e.g., x-axis direction) across the direction in which the heater assembly 10 extends (e.g., z-axis direction), the first heater 510 and the second heater 520 are supported units ( 400) and may be arranged to partially overlap. In this case, the first heater 510 and the second heater 520 are stored in the receiving space 10a from the inner surface 400a of the support unit 400 so as not to protrude outward from the outer surface 400b of the support unit 400. may protrude toward.

Referring to Figure 10, the heater assembly 10 for an aerosol generating device according to one embodiment includes a body 100, a holder 150, a second sealing ring 170, a third sealing ring 180, and a first cover. (200), a second cover 300, a support unit 400, a sensing connection unit 450, a heater 500, an antenna 600, a sensing unit 700, and a shielding unit 800. there is.

The first cover 200 may further include a first cover protruding member 230 and a coupling hole 270.

The first cover protruding member 230 may protrude outward so that a coupling member such as a screw can be coupled to the heater assembly 10 to be fixed within the aerosol generating device 1. The first cover protruding members 230 protrude outward from the first cover body 210 and may be disposed one at each end of the first cover body 210 . The first cover protruding member 230 may be formed integrally with the first cover body 210.

The coupling hole 270 may be formed in the first cover protruding member 230. A coupling member to be described later may be inserted into the coupling hole 270. The coupling holes 270 may be formed to penetrate the first cover protruding member 230 and may be formed in the same number as the first cover protruding member 230.

Figure 11 is a perspective view of a combination of a holder, a first cover, a support unit, and a heater in a heater assembly for an aerosol generating device according to an embodiment. In Figure 11, the heater 500 disposed in the support unit 400 is shown as a dotted line.

Referring to FIG. 11, the heater assembly 10 for an aerosol generating device according to an embodiment may include a holder 150, a first cover 200, a support unit 400, and a heater 500. At least one of the components of the heater assembly 10 for an aerosol generating device according to an embodiment is the same or similar to at least one of the components of the heater assembly 10 for an aerosol generating device shown in FIGS. 2 to 10. This can be done, and redundant explanations will be omitted below.

The holder 150 may be coupled to the first cover 200 on one side (e.g., +z direction) of the first cover 200, and specifically, the holder protrusion 150c is inserted into the holder insertion portion 250. Accordingly, the holder 150 may be coupled to the first cover 200. When the holder 150 is coupled to the first cover 200, the insertion hole 150a and the article insertion portion 240 may be in communication, and the aerosol inserted through the insertion hole 150a and the article insertion portion 240 The resulting article 2 may be supported on the ridge 150b.

The first cover 200 may be fixed within the aerosol generating device 1 as the coupling member 280 is inserted into the coupling hole 270 formed in the first cover protruding member 230. The coupling member 280 can fix the first cover 200 to the aerosol generating device 1, thereby fixing the heater assembly 10 within the aerosol generating device 1. The coupling member 280 may be a screw, but may be used without limitation as long as it can secure the first cover 200.

The cover insulation member 220 may extend along the direction in which the heater assembly 10 extends (eg, z-axis direction). In one embodiment, the cover insulation member 220 may extend longer than the support unit 400 and the heater 500. Accordingly, the cover insulation member 220 can increase the area that can cover the support unit 400 and the heater 500, thereby further improving insulation performance.

The cover insulation member 220 may be inserted into the body 100 and arranged to surround a portion of the outside of the support unit 400 and the heater 500. Accordingly, when compared to the comparative example in which the cover insulation member 220 surrounds the entire outer side of the support unit 400 and the heater 500, the heater assembly 10 for an aerosol generating device according to one embodiment has a cover. The insulation member 220 can be easily inserted into the body 100. In the comparative example, this is because during the process of inserting the cover insulation member 220 into the body 100, the area where the cover insulation member 220 interferes with the body 100 increases. Accordingly, the heater assembly 10 for an aerosol generating device according to an embodiment can improve ease of assembly between the cover insulation member 220 and the body 100.

The heater 500 may include a heater connection portion 500a to be electrically connected to the battery or control unit of the aerosol generating device 1. The heater connection portion 500a may protrude downward (eg, in the -z direction) from the support unit 400 in order to be mounted on the battery. The heater connection portion 500a protruding downward (e.g., -z direction) from the support unit 400 may be a line for supplying power to the heater 500 described above, and is shown in the second cover 300 in FIG. 3. ) can be connected to the battery or control unit by passing through the through hole 330 (shown in FIG. 3).

Figure 12 is a perspective view of a support unit, a heater, an antenna, and a sensing unit combined in a heater assembly for an aerosol generating device according to an embodiment. In Figure 12, the heater 500 disposed in the support unit 400 is shown as a dotted line.

Referring to FIG. 12, the heater assembly 10 for an aerosol generating device according to an embodiment may include a support unit 400, a heater 500, an antenna 600, and a detection unit 700. At least one of the components of the heater assembly 10 for an aerosol generating device according to an embodiment is the same or similar to at least one of the components of the heater assembly 10 for an aerosol generating device shown in FIGS. 2 to 11. This can be done, and redundant explanations will be omitted below.

The antenna 600 may include an antenna main body 610, an antenna extension part 620, and an antenna connection part 630.

The antenna body 610 may function as the main body of the antenna 600 and may extend along the direction in which the support unit 400 and the heater 500 extend (eg, the z-axis direction). The antenna body 610 may be inserted into the body 100 and arranged to surround a portion of the outside of the support unit 400 and the heater 500. Accordingly, when compared to the comparative example in which the antenna body 610 surrounds the entire outer side of the support unit 400 and the heater 500, the heater assembly 10 for an aerosol generating device according to one embodiment has the antenna body 610. (610) can be easily inserted into the body (100).

The antenna extension part 620 may extend from the antenna body 610 along the circumferential direction of the support unit 400 and the heater 500. That is, the antenna extension part 620 may be arranged to surround a portion of the outer side of the support unit 400 and the heater 500. The antenna extension part 620 may include a first extension part extending from one side of the antenna main body 610 and a second extension part extending from the other side of the antenna main body 610.

According to one embodiment, the end of the first extension portion and the end of the second extension portion may be spaced apart from each other, and a sensing passage portion 600a may be formed in the spaced portion. Accordingly, the sensing unit 700 may pass through the sensing passage portion 600a and come into contact with the support unit 400. That is, the heater assembly 10 for an aerosol generating device according to an embodiment may be implemented in a structure in which the antenna 600 and the sensing unit 700 do not contact each other, so that the antenna 600 and the sensing unit 700 It can reduce the possibility of an electrical short circuit occurring in between. The sensing connection portion 720 of the sensing unit 700 may pass through the sensing passing portion 600a.

The antenna connection unit 630 may protrude downward (eg, in the -z direction) from the antenna body 610 in order to be electrically connected to the battery or control unit of the aerosol generating device 1. The antenna connection portion 630 protruding downward (e.g., -z direction) from the antenna body 610 passes through the through hole 330 (shown in FIG. 3) of the second cover 300 (shown in FIG. 3). It can be connected to a battery or control unit. The antenna connection part 630 may be formed integrally with the antenna body 610.

The sensing unit 700 may include a sensing body 710, a sensing connector 720, and a sensing connector 730.

The sensing body 710 extends along the direction in which the support unit 400 and the heater 500 extend, and may be disposed on one side (eg, +x direction) of the support unit 400 and the heater 500. The sensing body 710 is disposed between the sensing connector 720 and the sensing connector 730, and can connect the sensing connector 720 and the sensing connector 730. The sensing body 710, the sensing connection portion 720, and the sensing connection portion 730 may be formed integrally.

The sensing connection portion 720 may be connected to the support unit 400 by passing through the sensing passage portion 600a. At least a portion of the sensing connection portion 720 may extend in a direction different from the direction in which the sensing body 710 extends and be connected to the support unit 400.

The sensing connector 730 may protrude from the sensing body 710 in one direction (eg, -z direction) in order to be electrically connected to the battery or control unit of the aerosol generating device 1. The sensing connection portion 730 protruding in one direction (e.g., -z direction) from the sensing body 710 passes through the through hole 330 (shown in FIG. 3) of the second cover 300 (shown in FIG. 3). It can be connected to the battery or control unit. In one embodiment, the sensing connection portion 730 may include a first connection portion extending in one direction (e.g., -z direction) and a second connection portion extending in a direction transverse to one direction (e.g., +x direction). there is.

Referring to FIG. 13, the heater assembly 10 for an aerosol generating device according to one embodiment may include a first cover 200 and an antenna 600. At least one of the components of the heater assembly 10 for an aerosol generating device according to an embodiment is the same or similar to at least one of the components of the heater assembly 10 for an aerosol generating device shown in FIGS. 2 to 12. This can be done, and redundant explanations will be omitted below.

The first cover body 210 may be disposed on one side (eg, +z direction) of the antenna 600 and cover one side of the antenna 600.

The cover insulation member 220 may be disposed inside the antenna 600 and surrounded by the antenna 600.

In the heater assembly 10 for an aerosol generating device according to an embodiment, when the assembly of the first cover 200 and the antenna 600 is completed, the antenna 600 surrounds at least a portion of the cover insulation member 220. It can be arranged as follows. That is, the antenna body 610 is disposed outside the cover insulation member 220 and can support the cover insulation member 220 from the outside. Accordingly, the antenna body 610 can perform the function of fixing the position of the cover insulation member 220, and the cover insulation member 220 stably dissipates heat generated within the receiving space 10a to the outside. It can perform the function of preventing

Referring to FIG. 14, the heater assembly 10 for an aerosol generating device according to an embodiment may include an antenna 600, a sensing unit 700, and a shielding unit 800. At least one of the components of the heater assembly 10 for an aerosol generating device according to an embodiment is the same or similar to at least one of the components of the heater assembly 10 for an aerosol generating device shown in FIGS. 2 to 13. This can be done, and redundant explanations will be omitted below.

The shielding unit 800 may include a shielding body 810 and a sensing passage part 820.

The shielding body 810 may function as the main body of the shielding unit 800 and may be arranged to surround the antenna 600. When assembly of the shielding unit 800 within the heater assembly 10 is completed, the shielding body 810 may be arranged to surround the support unit 400, the heater 500, and the antenna 600.

The detection passage part 820 may be formed in at least one area of the shielding body 810. The detection passage portion 820 may be formed on one side (e.g., the side facing the +x direction) of the shielding body 810, and the detection unit 700 may be disposed on one side of the shielding body 810. .

The sensing connection portion 720 may pass through the sensing passing portion 820. That is, the sensing connection part 720 may be connected to the support unit 400 by passing through the sensing passing part 820 of the shielding unit 800 and the sensing passing part 600a of the sensing unit 700. That is, according to the heater assembly 10 for an aerosol generating device according to one embodiment, even if the sensing unit 700 is disposed outside the antenna 600 and the shielding unit 800, the sensing connection portion 720 is connected to the antenna 600. ) and can be implemented in a structure that can be connected to the support unit 400 disposed inside the shielding unit 800.

Figure 15 is a perspective view of the second cover, support unit, heater, antenna, sensing unit, and sealing part combined to explain how the sealing part is coupled to the second cover. In Figure 15, the heater 500 disposed in the support unit 400 is shown as a dotted line.

Referring to Figure 15, the heater assembly 10 for an aerosol generating device according to an embodiment includes a second cover 300, a support unit 400, a heater 500, an antenna 600, a detection unit 700, And it may include a sealing part 900. At least one of the components of the heater assembly 10 for an aerosol generating device according to an embodiment is the same or similar to at least one of the components of the heater assembly 10 for an aerosol generating device shown in FIGS. 2 to 14. This can be done, and redundant explanations will be omitted below.

The heater 500 may be electrically connected to the battery or control unit through the heater connection part 500a. To this end, the heater connection part 500a may pass through the second cover 300 and be mounted on the battery or control unit.

The antenna 600 may be electrically connected to the battery or control unit through the antenna connection unit 630. To this end, the antenna connection unit 630 may pass through the second cover 300 and be mounted on the battery or control unit.

The sensing unit 700 may be electrically connected to the battery or the control unit through the sensing connector 730. To this end, the sensing connector 730 may pass through the second cover 300 and be mounted on the battery or the controller.

The sealing portion 900 is coupled to the second cover 300 and can perform the function of sealing the passage hole 330 through which the connecting

portions

500a, 630, and 730 pass through the second cover 300. . In other words, the sealing unit 900 may perform the function of sealing at least a portion of the second cover 300 and sealing the lower side (eg, -z direction) of the internal space of the body 100.

The sealing part 900 may include a first sealing member 910 and a second sealing member 920, and a detailed description thereof will be made with reference to FIG. 16.

Referring to FIG. 16, the heater assembly 10 for an aerosol generating device according to one embodiment may include a second cover 300 and a sealing portion 900. At least one of the components of the heater assembly 10 for an aerosol generating device according to an embodiment is the same or similar to at least one of the components of the heater assembly 10 for an aerosol generating device shown in FIGS. 2 to 15. This can be done, and redundant explanations will be omitted below.

The second cover 300 may include a second cover body 310, a second cover protruding member 320, a passing hole 330, and a sealing insertion groove 340.

The second cover body 310 may function as the main body of the second cover 300, and at least a portion of the sealing portion 900 (eg, the second sealing member 920) may be coupled thereto.

The second cover protruding member 320 may protrude from the second cover body 310 toward one side (eg, -z direction). The sealing part 900 may be inserted or fitted into the second cover protruding member 320. The second cover protruding member 320 may be formed integrally with the second cover body 310.

At least a portion of the sealing portion 900 (eg, the first sealing member 910) may be inserted into the passage hole 330, and the above-described connecting

portions

500a, 630, and 730 may pass therethrough. The passing hole 330 may be formed to penetrate each of the second cover body 310 and the second cover protruding member 320.

At least a portion of the sealing portion 900 (eg, the second sealing member 920) may be inserted into the sealing insertion groove 340. The sealing insertion groove 340 may be formed in the second cover protruding member 320, for example, one on each side of the second cover protruding member 320.

The sealing unit 900 may include a first sealing member 910 and a second sealing member 920.

The first sealing member 910 may be inserted into the passing hole 330. In one embodiment, the first sealing member 910 may be inserted into the passage hole 330 in an interference fit manner.

The second sealing member 920 may be coupled to the second cover protruding member 320. The second sealing member 920 includes a hole on the inside, and the second cover protruding member 320 can be inserted into the hole. In one embodiment, the second cover protruding member 320 may be inserted into the hole in an interference fit manner.

FIG. 17 is a diagram illustrating the second cover of FIG. 16.

Referring to FIG. 17 , the second cover 300 may include a second cover body 310, a second cover protruding member 320, a passing hole 330, and a sealing insertion groove 340. Since the components of the second cover 300 have been described with reference to FIG. 16, detailed description will be omitted.

The second cover 300 may include an outer surface 300a and an inner surface 300b.

The outer surface 300a of the second cover 300 may be defined as the outer surface of the second cover protruding member 320, and the second sealing member 920 is in contact with the outer surface 300a of the second cover 300. It can be.

The inner surface 300b of the second cover 300 may be defined as the inner surface of the second cover protruding member 320 facing the through hole 330, and the inner surface 300b of the second cover 300 has the first The sealing member 910 may be contacted.

Referring to FIG. 18A, the first sealing member 910 may include a first sealing body 911, a first passage groove 912, and a second passage groove 913.

The first sealing body 911 is the main body of the first sealing member 910 and can be inserted into the passing hole 330. A first passage groove 912 and a second passage groove 913 may be formed in the first sealing body 911 at positions spaced apart from each other. The first sealing body 911 may be formed in the overall shape of a rectangular parallelepiped, but may also be formed in another shape as long as it can be inserted into the through hole 330.

The first passage groove 912 is for the heater connection part 500a to pass through, and may be formed in the first sealing body 911. The first passing groove 912 may be formed by machining a groove to a predetermined depth from the outer surface of the first sealing body 911. Although two first passage grooves 912 are shown in FIG. 18A, this is an example, and there is no limit to the number of first passage grooves 912 that can be formed. For example, the first passage grooves 912 may be formed in the first sealing body 911 in the same number as the heater connection portions 500a.

The second passage groove 913 is for the sensing connection part 730 to pass through, and may be formed in the first sealing body 911 at a position spaced apart from the first passage groove 912. The second passage groove 913 may be formed by machining a groove to a predetermined depth from the outer surface of the first sealing body 911. Although one second passing groove 913 is shown in FIG. 18A, this is an example, and there is no limit to the number of second passing grooves 913 formed. For example, the second passage grooves 913 may be formed in the first sealing body 911 in the same number as the sensing connection portions 730.

Referring to FIG. 18B, the second sealing member 920 may include a second sealing body 921, a second cover insertion groove 922, and a sealing protrusion 923.

The second sealing body 921 is the main body of the second sealing member 920 and may be coupled to the second cover protruding member 320. A second cover insertion groove 922 and a sealing protrusion 923 may be formed in the second sealing body 921.

The second cover protruding member 320 may be inserted into the second cover insertion groove 922. For example, the second cover protruding member 320 may be inserted into the second cover insertion groove 922 in an interference fit manner. In this case, the second cover protruding member 320 and the second sealing body 921 There may not be a gap between the .

The sealing protrusion 923 protrudes toward the second cover insertion groove 922. When the second cover protruding member 320 is inserted into the second cover insertion groove 922, the sealing protrusion 923 may be inserted into the sealing insertion groove 340 formed on the outer surface 300a of the second cover 300. there is. Accordingly, the coupling state between the second cover 300 and the second sealing member 920 can be strengthened. One sealing protrusion 923 may be formed on one side and one on the other side of the second sealing body 921. The sealing protrusion 923 may be formed integrally with the second sealing body 921.

Hereinafter, with reference to FIG. 19, the connection structure between the second cover 300, the

connection parts

500a, 630, and 730, and the sealing part 900 will be described.

When the first sealing member 910 is inserted into the through hole 330, as shown in FIG. 19, the

connection parts

500a, 630, and 730 are between the first sealing member 910 and the second cover 300. can be placed in Therefore, even if vibration or shaking acts on the heater assembly 10 for an aerosol generating device according to an embodiment, the movement of the

connection parts

500a, 630, and 730 may be restricted.

Below, the assembly process between the second cover 300, the

connection parts

500a, 630, and 730, and the sealing part 900 will be described.

First, the

connection parts

500a, 630, and 730 are passed through the through hole 330. The heater connection part 500a, the antenna connection part 630, and the sensing connection part 730 can be passed through the through hole 330 together, and the heater connection part 500a, the antenna connection part 630, and the sensing connection part 730 can be connected together. It may also be passed through the through holes 330 sequentially.

Here, the size of the through hole 330 is larger than the respective sizes of the

connection parts

500a, 630, and 730, so the

connection parts

500a, 630, and 730 can easily pass through the through hole 330.

Next, the first sealing member 910 is inserted into the passage hole 330. In this case, the heater connection part 500a is inserted into the first passage groove 912, the antenna connection part 630 is located on the inner surface 300b of the second cover 300, and the sensing connection part 730 is inserted into the second passage groove 912. It can be inserted into the groove 913.

When the first sealing member 910 is first inserted into the through hole 330 and then the

connection parts

500a, 630, and 730 are passed through the through hole 330, the size of the through hole 330 becomes smaller. , it is difficult to pass the

connection parts

500a, 630, and 730 through the through hole 330. Therefore, in this case, the assembly process between the second cover 300, the

connection parts

500a, 630, and 730, and the sealing part 900 is not easy.

However, the heater assembly 10 for an aerosol generating device according to one embodiment preferentially inserts the

connection parts

500a, 630, and 730 into the through hole 330, and sequentially inserts the first sealing member 910 into the through hole. By inserting it into 330, assembly between the second cover 300, the

connection parts

500a, 630, and 730, and the sealing part 900 can be easily performed.

Examples of aerosol-generating articles 2 will now be described with reference to FIGS. 20 and 21 .

20, the aerosol-generating article 2 includes a tobacco rod 21 and a filter rod 22.

In Figure 20, the filter rod 22 is shown as a single segment, but the present invention is not limited thereto. In other words, the filter rod 22 may be composed of a plurality of segments. For example, filter rod 22 may include a segment that cools the aerosol and a segment that filters certain components contained within the aerosol. Additionally, if necessary, the filter rod 22 may further include at least one segment that performs another function.

The diameter of the aerosol-generating article 2 may be within the range of 5 mm to 9 mm, and the length may be, but is not limited to, approximately 48 mm. For example, the length of the tobacco rod 21 is about 12 mm, the length of the first segment of the filter rod 22 is about 10 mm, the length of the second segment of the filter rod 22 is about 14 mm, and the length of the filter rod 22 is about 14 mm. The length of the third segment may be about 12 mm, but is not limited thereto.

The aerosol-generating article 2 may be packaged by at least one wrapper 24 . At least one hole may be formed in the wrapper 24 through which external air flows in or internal gas flows out. As an example, the aerosol-generating article 2 may be packaged by one wrapper 24 . As another example, the aerosol-generating article 2 may be overlappingly wrapped by two or more wrappers 24 . For example, the tobacco rod 21 may be packaged by the first wrapper 241 and the filter rod 22 may be packaged by the

wrappers

242, 243, and 244. And, the entire aerosol-generating article 2 can be repackaged by a single wrapper 245. If the filter rod 22 is composed of a plurality of segments, each segment may be wrapped by

wrappers

242, 243, and 244.

The first wrapper 241 and the second wrapper 242 may be made of general filter paper. For example, the first wrapper 241 and the second wrapper 242 may be porous wrappers or non-porous wrappers. Additionally, the first wrapper 241 and the second wrapper 242 may be made of oil-resistant paper and/or aluminum laminate packaging.

The third wrapper 243 may be made of hard paper. For example, the basis weight of the third wrapper 243 may be within the range of 88 g/m2 to 96 g/m2, and preferably within the range of 90 g/m2 to 94 g/m2. Additionally, the thickness of the third wrapper 243 may be within the range of 120um to 130um, and may preferably be 125um.

The fourth wrapper 244 may be made of oil-resistant hard wrapping paper. For example, the basis weight of the fourth wrapper 244 may be within the range of 88 g/m2 to 96 g/m2, and preferably within the range of 90 g/m2 to 94 g/m2. Additionally, the thickness of the fourth wrapper 244 may be within the range of 120um to 130um, and may preferably be 125um.

The fifth wrapper 245 may be made of sterile paper (MFW). Here, sterilized paper (MFW) refers to paper specially manufactured to improve tensile strength, water resistance, smoothness, etc. compared to ordinary paper. For example, the basis weight of the fifth wrapper 245 may be within the range of 57 g/m2 to 63 g/m2, and preferably 60 g/m2. Additionally, the thickness of the fifth wrapper 245 may be within the range of 64um to 70um, and may preferably be 67um.

The fifth wrapper 245 may be internally added with a predetermined material. Here, an example of a certain material may be silicon, but is not limited thereto. For example, silicone has properties such as heat resistance with little change depending on temperature, oxidation resistance without oxidation, resistance to various chemicals, water repellency, or electrical insulation. However, even if it is not silicon, any material having the above-mentioned characteristics can be applied (or coated) to the fifth wrapper 245 without limitation.

The fifth wrapper 245 can prevent the aerosol-generating article 2 from burning. For example, when the tobacco rod 21 is heated by a heater, there is a possibility that the aerosol-generating article 2 combusts. Specifically, when the temperature rises above the ignition point of any one of the materials included in the tobacco rod 21, the aerosol-generating article 2 may combust. Even in this case, since the fifth wrapper 245 includes a non-combustible material, combustion of the aerosol-generating article 2 can be prevented.

Additionally, the fifth wrapper 245 can prevent the aerosol generating device 1 from being contaminated by substances generated from the aerosol generating article 2. Liquid substances may be generated within the aerosol-generating article 2 by the user's puff. For example, liquid substances (eg, moisture, etc.) can be generated by cooling the aerosol generated in the aerosol-generating article 2 by external air. As the fifth wrapper 245 wraps the aerosol-generating article 2, liquid substances generated within the aerosol-generating article 2 can be prevented from leaking out of the aerosol-generating article 2.

The tobacco load 21 contains aerosol-generating material. For example, the aerosol-generating material may include, but is not limited to, at least one of glycerin, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol. Additionally, the tobacco rod 21 may contain other additives such as flavoring agents, humectants and/or organic acids. Additionally, a flavoring liquid such as menthol or a moisturizer can be added to the tobacco rod 21 by spraying it on the tobacco rod 21 .

The tobacco rod 21 can be manufactured in various ways. For example, the tobacco rod 21 may be manufactured as a sheet or as a strand. Additionally, the tobacco rod 21 may be made of cut tobacco with finely chopped tobacco sheets. Additionally, the tobacco rod 21 may be surrounded by a heat-conducting material. For example, the heat-conducting material may be, but is not limited to, a metal foil such as aluminum foil. As an example, the heat-conducting material surrounding the tobacco rod 21 can improve the heat conductivity applied to the tobacco rod by evenly dispersing the heat transmitted to the tobacco rod 21, thereby improving the taste of the tobacco. . Additionally, the heat-conducting material surrounding the tobacco rod 21 can function as a susceptor that is heated by an induction heater. At this time, although not shown in the drawing, the tobacco rod 21 may further include an additional susceptor in addition to the heat-conducting material surrounding the outside.

Filter rod 22 may be a cellulose acetate filter. Meanwhile, there are no restrictions on the shape of the filter rod 22. For example, the filter rod 22 may be a cylindrical rod or a tubular rod with a hollow interior. Additionally, the filter rod 22 may be a recess type rod. If the filter rod 22 is composed of a plurality of segments, at least one of the plurality of segments may be manufactured in a different shape.

The first segment of filter rod 22 may be a cellulose acetate filter. For example, the first segment may be a tube-shaped structure including a hollow interior. When the heater is inserted through the first segment, the internal material of the tobacco rod 21 can be prevented from being pushed back, and the cooling effect of the aerosol can also be generated. The diameter of the hollow included in the first segment may be an appropriate diameter within the range of 2 mm to 4.5 mm, but is not limited thereto.

The length of the first segment may be an appropriate length within the range of 4 mm to 30 mm, but is not limited thereto. Preferably, the length of the first segment may be 10 mm, but is not limited thereto.

The hardness of the first segment can be adjusted by adjusting the content of the plasticizer when manufacturing the first segment. Additionally, the first segment may be manufactured by inserting a structure such as a film or tube made of the same or different material into the interior (eg, hollow).

The second segment of the filter rod (22) cools the aerosol generated by the heater heating the tobacco rod (21). Therefore, the user can inhale the aerosol cooled to an appropriate temperature.

The length or diameter of the second segment may vary depending on the shape of the aerosol-generating article 2. For example, the length of the second segment may be appropriately adopted within the range of 7 mm to 20 mm. Preferably, the length of the second segment may be about 14 mm, but is not limited thereto.

The second segment may be fabricated by weaving polymer fibers. In this case, the flavoring liquid may be applied to fibers made of polymer. Alternatively, the second segment may be manufactured by weaving separate fibers coated with a flavoring agent and fibers made of polymer together. Alternatively, the second segment may be formed by a crimped polymer sheet.

For example, the polymer may be selected from the group consisting of polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polyethylene terephthalate (PET), polylactic acid (PLA), cellulose acetate (CA), and aluminum foil. It can be made from materials.

As the second segment is formed by woven polymer fibers or crimped polymer sheets, the second segment may include one or a plurality of longitudinally extending channels. Here, the channel refers to a passage through which a gas (eg, air or aerosol) passes.

For example, the second segment comprised of a crimped polymer sheet may be formed from a material having a thickness between about 5 μm and about 300 μm, such as between about 10 μm and about 250 μm. Additionally, the total surface area of the second segment can be between about 300 mm2/mm and about 1000 mm2/mm. Additionally, the aerosol cooling element can be formed from a material having a specific surface area between about 10 mm2/mg and about 100 mm2/mg.

Meanwhile, the second segment may include threads containing volatile flavor components. Here, the volatile flavor component may be, but is not limited to, menthol. For example, the thread may be filled with a sufficient amount of menthol to provide the second segment with more than 1.5 mg of menthol.

The third segment of filter rod 22 may be a cellulose acetate filter. The length of the third segment may be appropriately adopted within the range of 4 mm to 20 mm. For example, the length of the third segment may be about 12 mm, but is not limited thereto.

In the process of manufacturing the third segment, it may be manufactured to generate flavor by spraying a flavoring liquid on the third segment. Alternatively, a separate fiber coated with a flavoring liquid may be inserted into the third segment. The aerosol generated in the tobacco rod 21 is cooled as it passes through the second segment of the filter rod 22, and the cooled aerosol is delivered to the user through the third segment. Therefore, when a flavoring element is added to the third segment, the sustainability of the flavor delivered to the user can be improved.

Additionally, the filter rod 22 may include at least one capsule 23. Here, the capsule 23 may perform a flavor generating function or an aerosol generating function. For example, the capsule 23 may have a structure in which a liquid containing fragrance is wrapped with a film. The capsule 23 may have a spherical or cylindrical shape, but is not limited thereto.

21, the aerosol-generating article 3 may further include a shear plug 33. The shear plug 33 may be located on one side of the tobacco rod 31 opposite the filter rod 32. The shear plug 33 can prevent the cigarette rod 31 from leaving the cigarette rod 31 and prevent the liquefied aerosol from the cigarette rod 31 from flowing into the aerosol generating device 1 during smoking.

The filter rod 32 may include a first segment 321 and a second segment 322. Here, the first segment 321 may correspond to the first segment of the filter rod 22 in FIG. 20, and the second segment 322 may correspond to the third segment of the filter rod 22 in FIG. 20. You can.

The diameter and overall length of the aerosol-generating article 3 may correspond to the diameter and overall length of the aerosol-generating article 2 in FIG. 20 . For example, the length of the shear plug 33 is about 7 mm, the length of the tobacco rod 31 is about 15 mm, the length of the first segment 321 is about 12 mm, and the length of the second segment 322 is about 14 mm. However, it is not limited to this.

The aerosol-generating article 3 may be packaged by at least one wrapper 35 . At least one hole may be formed in the wrapper 35 through which external air flows in or internal gas flows out. For example, the shear plug 33 is packaged by the first wrapper 351, the tobacco rod 31 is packaged by the second wrapper 352, and the first segment ( 321) may be packaged, and the second segment 322 may be packaged by the fourth wrapper 354. And, the entire aerosol-generating article 3 can be repackaged by the fifth wrapper 355.

Additionally, at least one perforation 36 may be formed in the fifth wrapper 355. For example, the perforation 36 may be formed in an area surrounding the tobacco rod 31, but is not limited thereto. The perforation 36 may serve to transfer heat generated by the heater to the inside of the tobacco rod 31.

Additionally, the second segment 322 may include at least one capsule 34. Here, the capsule 34 may perform a flavor generating function or an aerosol generating function. For example, the capsule 34 may have a structure in which a liquid containing fragrance is wrapped with a film. The capsule 34 may have a spherical or cylindrical shape, but is not limited thereto.

The first wrapper 351 may be a metal foil such as aluminum foil combined with a general filter wrapper. For example, the total thickness of the first wrapper 351 may be within the range of 45um to 55um, and may preferably be 50.3um. Additionally, the thickness of the metal foil of the first wrapper 351 may be within the range of 6um to 7um, and may preferably be 6.3um. Additionally, the basis weight of the first wrapper 351 may be within the range of 50 g/m2 to 55 g/m2, and may preferably be 53 g/m2.

The second wrapper 352 and the third wrapper 353 may be made of general filter paper. For example, the second wrapper 352 and the third wrapper 353 may be porous wrappers or non-porous wrappers.

For example, the porosity of the second wrapper 352 may be 35000CU, but is not limited thereto. Additionally, the thickness of the second wrapper 352 may be within the range of 70um to 80um, and may preferably be 78um. Additionally, the basis weight of the second wrapper 352 may be within the range of 20 g/m2 to 25 g/m2, and may preferably be 23.5 g/m2.

For example, the porosity of the third wrapper 353 may be 24000CU, but is not limited thereto. Additionally, the thickness of the third wrapper 353 may be within the range of 60um to 70um, and may preferably be 68um. Additionally, the basis weight of the third wrapper 353 may be within the range of 20 g/m2 to 25 g/m2, and may preferably be 21 g/m2.

The fourth wrapper 354 may be made of PLA lamination. Here, PLA laminate refers to three layers of paper including a paper layer, a PLA layer, and a paper layer. For example, the thickness of the fourth wrapper 354 may be within the range of 100um to 120um, and may preferably be 110um. Additionally, the basis weight of the fourth wrapper 354 may be within the range of 80 g/m2 to 100 g/m2, and may preferably be 88 g/m2.

The fifth wrapper 355 may be made of sterile paper (MFW). Here, sterilized paper (MFW) refers to paper specially manufactured to improve tensile strength, water resistance, smoothness, etc. compared to ordinary paper. For example, the basis weight of the fifth wrapper 355 may be within the range of 57 g/m2 to 63 g/m2, and preferably 60 g/m2. Additionally, the thickness of the fifth wrapper 355 may be within the range of 64um to 70um, and may preferably be 67um.

The fifth wrapper 355 may be internally added with a predetermined material. Here, an example of a certain material may be silicon, but is not limited thereto. For example, silicone has properties such as heat resistance with little change depending on temperature, oxidation resistance without oxidation, resistance to various chemicals, water repellency, or electrical insulation. However, even if it is not silicon, any material having the above-mentioned characteristics can be applied (or coated) to the fifth wrapper 355 without limitation.

The shear plug 33 may be made of cellulose acetate. As an example, the shear plug 33 may be manufactured by adding a plasticizer (eg, triacetin) to cellulose acetate tow. The mono denier of the filament constituting the cellulose acetate tow may be within the range of 1.0 to 10.0, and preferably within the range of 4.0 to 6.0. More preferably, the mono denier of the filament of the shear plug 33 may be 5.0. Additionally, the cross section of the filament constituting the shear plug 33 may be Y-shaped. The total denier of the shear plug 33 may be within the range of 20,000 to 30,000, and preferably within the range of 25,000 to 30,000. More preferably, the total denier of the shear plug 33 may be 28000.

Additionally, if necessary, the shear plug 33 may include at least one channel, and the cross-sectional shape of the channel may be manufactured in various ways.

The cigarette rod 31 may correspond to the cigarette rod 21 described above with reference to FIG. 20 . Therefore, detailed description of the tobacco rod 31 will be omitted below.

The first segment 321 may be made of cellulose acetate. For example, the first segment may be a tube-shaped structure including a hollow interior. The first segment 321 may be manufactured by adding a plasticizer (eg, triacetin) to cellulose acetate tow. For example, the mono denier and total denier of the first segment 321 may be the same as the mono denier and total denier of the shear plug 33 .

The second segment 322 may be made of cellulose acetate. The mono denier of the filament constituting the second segment 322 may be within the range of 1.0 to 10.0, and preferably within the range of 8.0 to 10.0. More preferably, the mono denier of the filaments of second segment 322 may be 9.0. Additionally, the cross-section of the filament of the second segment 322 may be Y-shaped. The total denier of the second segment 322 may be within the range of 20,000 to 30,000, and may preferably be 25,000.

Figure 22 is a block diagram of an aerosol generating device according to another embodiment.

The aerosol generating device 1 includes a control unit 1000, a sensing unit 2000, an output unit 3000, a battery 4000, a heater 5000, a user input unit 6000, a memory 7000, and a communication unit 8000. It can be included. However, the internal structure of the aerosol generating device 1 is not limited to that shown in FIG. 21. That is, those skilled in the art can understand that, depending on the design of the aerosol generating device 1, some of the configurations shown in FIG. 21 may be omitted or new configurations may be added. there is.

The sensing unit 2000 may detect the state of the aerosol generating device 1 or the state surrounding the aerosol generating device 1 and transmit the sensed information to the control unit 1000. Based on the sensed information, the control unit 1000 performs various functions such as controlling the operation of the heater 5000, restricting smoking, determining whether to insert an aerosol-generating article (e.g., cigarette, cartridge, etc.), displaying a notification, etc. The aerosol generating device (1) can be controlled.

The sensing unit 2000 may include at least one of a temperature sensor 2100, an insertion detection sensor 2200, and a puff sensor 2300, but is not limited thereto.

The temperature sensor 2100 may detect the temperature at which the heater 5000 (or an aerosol-generating material) is heated. The aerosol generating device 1 may include a separate temperature sensor that detects the temperature of the heater 5000, or the heater 5000 itself may serve as a temperature sensor. Alternatively, the temperature sensor 2100 may be disposed around the battery 4000 to monitor the temperature of the battery 4000.

Insertion detection sensor 2200 may detect insertion and/or removal of an aerosol-generating article. For example, the insertion detection sensor 2200 may include at least one of a film sensor, a pressure sensor, an optical sensor, a resistive sensor, a capacitive sensor, an inductive sensor, and an infrared sensor, where the aerosol-generating article is inserted and/or Signal changes can be detected as it is removed.

The puff sensor 2300 may detect the user's puff based on various physical changes in the airflow passage or airflow channel. For example, the puff sensor 2300 may detect the user's puff based on any one of temperature change, flow change, voltage change, and pressure change.

In addition to the sensors 2100 to 2300 described above, the sensing unit 2000 includes a temperature/humidity sensor, an atmospheric pressure sensor, a magnetic sensor, an acceleration sensor, a gyroscope sensor, a position sensor (e.g., GPS), It may further include at least one of a proximity sensor and an RGB sensor (illuminance sensor). Since the function of each sensor can be intuitively deduced by a person skilled in the art from its name, detailed descriptions may be omitted.

The output unit 3000 may output information about the status of the aerosol generating device 1 and provide it to the user. The output unit 3000 may include at least one of a display unit 3100, a haptic unit 3200, and an audio output unit 3300, but is not limited thereto. When the display unit 3100 and the touch pad form a layer structure to form a touch screen, the display unit 3100 can be used as an input device in addition to an output device.

The display unit 3100 can visually provide information about the aerosol generating device 1 to the user. For example, the information about the aerosol generating device 1 may include the charging/discharging state of the battery 4000 of the aerosol generating device 1, the preheating state of the heater 5000, the insertion/removal state of the aerosol generating article, or the aerosol generating state. It may refer to various information such as a state in which the use of the device 1 is restricted (e.g., abnormal item detection), and the display unit 3100 may output the information to the outside. The display unit 3100 may be, for example, a liquid crystal display panel (LCD) or an organic light emitting display panel (OLED). Additionally, the display unit 3100 may be in the form of an LED light-emitting device.

The haptic unit 3200 may convert an electrical signal into mechanical stimulation or electrical stimulation and tactilely provide information about the aerosol generating device 1 to the user. For example, the haptic unit 3200 may include a motor, a piezoelectric element, or an electrical stimulation device.

The sound output unit 3300 can provide information about the aerosol generating device 1 audibly to the user. For example, the audio output unit 3300 may convert an electrical signal into an acoustic signal and output it to the outside.

The battery 4000 may supply power used to operate the aerosol generating device 1. The battery 4000 may supply power so that the heater 5000 can be heated. In addition, the battery 4000 is connected to other components provided in the aerosol generating device 1 (e.g., sensing unit 2000, output unit 3000, user input unit 6000, memory 7000, and communication unit 8000). It can supply the power required for operation. The battery 4000 may be a rechargeable battery or a disposable battery. For example, the battery 4000 may be a lithium polymer (LiPoly) battery, but is not limited thereto.

The heater 5000 may heat the aerosol-generating material by receiving power from the battery 4000. Although not shown in FIG. 22, the aerosol generating device 1 may further include a power conversion circuit (eg, DC/DC converter) that converts the power of the battery 4000 and supplies it to the heater 5000. Additionally, when the aerosol generating device 1 generates an aerosol by induction heating, the aerosol generating device 1 may further include a DC/AC converter that converts the direct current power of the battery 4000 into alternating current power.

The control unit 1000, the sensing unit 2000, the output unit 3000, the user input unit 6000, the memory 7000, and the communication unit 8000 may perform their functions by receiving power from the battery 4000. Although not shown in FIG. 22, it may further include a power conversion circuit that converts the power of the battery 4000 and supplies it to each component, for example, a low dropout (LDO) circuit or a voltage regulator circuit.

In one embodiment, heater 5000 may be formed from any suitable electrically resistive material. For example, suitable electrically resistive materials include titanium, zirconium, tantalum, platinum, nickel, cobalt, chromium, hafnium, niobium, molybdenum, tungsten, tin, gallium, manganese, iron, copper, stainless steel, nichrome, etc. It may be a metal or metal alloy containing, but is not limited thereto. Additionally, the heater 5000 may be implemented as a metal hot wire, a metal hot plate with electrically conductive tracks, a ceramic heating element, etc., but is not limited thereto.

In another embodiment, the heater 5000 may be an induction heating type heater. For example, the heater 5000 may include a susceptor that heats the aerosol-generating material by generating heat through a magnetic field applied by the coil.

The user input unit 6000 may receive information input from the user or output information to the user. For example, the user input unit 6000 includes a key pad, a dome switch, and a touch pad (contact capacitive type, pressure resistance type, infrared detection type, surface ultrasonic conduction type, and integral type). Tension measurement method, piezo effect method, etc.), jog wheel, jog switch, etc., but are not limited thereto. In addition, although not shown in FIG. 21, the aerosol generating device 1 further includes a connection interface such as a USB (universal serial bus) interface, and is connected to other external devices through a connection interface such as a USB interface. This allows information to be transmitted and received or the battery 4000 to be charged.

The memory 7000 is hardware that stores various data processed within the aerosol generating device 1, and can store data processed by the control unit 1000 and data to be processed. The memory 7000 is a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory, etc.), and RAM. (RAM, random access memory) SRAM (static random access memory), ROM (read-only memory), EEPROM (electrically erasable programmable read-only memory), PROM (programmable read-only memory), magnetic memory, magnetic disk , and may include at least one type of storage medium among optical disks. The memory 7000 may store the operation time of the aerosol generating device 1, the maximum number of puffs, the current number of puffs, at least one temperature profile, and data on the user's smoking pattern.

The communication unit 8000 may include at least one component for communication with other electronic devices. For example, the communication unit 8000 may include a short-range communication unit 8100 and a wireless communication unit 8200.

The short-range wireless communication unit 8100 includes a Bluetooth communication unit, a BLE (Bluetooth Low Energy) communication unit, a Near Field Communication unit, a WLAN (Wi-Fi) communication unit, a Zigbee communication unit, and an infrared (IrDA) communication unit. , infrared Data Association) communication unit, WFD (Wi-Fi Direct) communication unit, UWB (ultra wideband) communication unit, Ant+ communication unit, etc., but is not limited thereto.

The wireless communication unit 8200 may include, but is not limited to, a cellular network communication unit, an Internet communication unit, and a computer network (eg, LAN or WAN) communication unit. The wireless communication unit 8200 may identify and authenticate the aerosol generating device 1 within the communication network using subscriber information (eg, International Mobile Subscriber Identifier (IMSI)).

The control unit 1000 may control the overall operation of the aerosol generating device 1. In one embodiment, the control unit 1000 may include at least one processor. The processor may be implemented as an array of multiple logic gates, or as a combination of a general-purpose microprocessor and a memory storing a program that can be executed on the microprocessor. Additionally, those skilled in the art can understand that this embodiment may be implemented with other types of hardware.

The control unit 1000 can control the temperature of the heater 5000 by controlling the supply of power from the battery 4000 to the heater 5000. For example, the control unit 1000 may control power supply by controlling switching of a switching element between the battery 4000 and the heater 5000. In another example, the heating direct circuit may control power supply to the heater 5000 according to a control command from the control unit 1000.

The control unit 1000 may analyze the results sensed by the sensing unit 2000 and control subsequent processes. For example, the control unit 1000 may control the power supplied to the heater 5000 to start or end the operation of the heater 5000 based on the result detected by the sensing unit 2000. For another example, based on the results detected by the sensing unit 2000, the control unit 1000 adjusts the power supplied to the heater 5000 so that the heater 5000 can be heated to a predetermined temperature or maintain an appropriate temperature. You can control the amount and time at which power is supplied.

The control unit 1000 may control the output unit 3000 based on the result sensed by the sensing unit 2000. For example, when the number of puffs counted through the puff sensor 2300 reaches a preset number, the control unit 1000 operates at least one of the display unit 3100, the haptic unit 3200, and the sound output unit 3300. Through this, it is possible to notify the user that the aerosol generating device 1 will soon be shut down.

One embodiment may also be implemented in the form of a recording medium containing instructions executable by a computer, such as program modules executed by a computer. Computer-readable media can be any available media that can be accessed by a computer and includes both volatile and non-volatile media, removable and non-removable media. Additionally, computer-readable media may include both computer storage media and communication media. Computer storage media includes both volatile and non-volatile, removable and non-removable media implemented in any method or technology for storage of information such as computer-readable instructions, data structures, program modules or other data. Communication media typically includes computer readable instructions, data structures, other data such as program modules, modulated data signals, or other transmission mechanisms, and includes any information delivery medium.

The description of the above-described embodiments is merely illustrative, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true scope of protection of the invention should be determined by the appended claims, and all differences within the equivalent scope of what is stated in the claims should be interpreted as being included in the scope of protection determined by the claims.

Claims

A body forming a receiving space for receiving an aerosol-generating article;

a first cover coupled to the body and having an article insertion portion into which the aerosol-generating article is inserted;

a support unit disposed inside the body and the first cover and surrounding the aerosol-generating article accommodated in the receiving space; and

A heater disposed between the inner and outer surfaces of the support unit and heats the aerosol-generating article by applying a magnetic field to the susceptor disposed in the receiving space,

A heater assembly for an aerosol generating device, wherein the heater is disposed to completely overlap the support unit based on a second direction crossing the first direction in which the support unit extends.
According to paragraph 1,

A heater assembly for an aerosol generating device, wherein the support unit and the heater are insert injection.
According to paragraph 1,

The heater generates an aerosol having a cross-sectional area extending in the first direction when the support unit is cut based on a plane passing through each of the first direction extending and the second direction crossing the first direction. Heater assembly for the device.
According to paragraph 3,

A heater assembly for an aerosol generating device, wherein the frequency of the magnetic field applied to the susceptor is 5 MHz or more.
According to paragraph 1,

A heater assembly for an aerosol generating device, wherein the spacing between adjacent portions of the heater disposed on the first side of the support unit is different from the spacing between adjacent portions of the heater disposed on the second side of the support unit.
According to paragraph 1,

A heater assembly for an aerosol generating device, wherein the heater includes a first heater and a second heater disposed in different portions of the support unit.
According to paragraph 1,

A heater assembly for an aerosol generating device, further comprising a sensing unit supported on the support unit inside the body and detecting the temperature of at least one of the support unit and the heater.
In clause 7,

A heater assembly for an aerosol generating device, further comprising a sensing connection unit disposed at a portion where the support unit and the sensing unit are connected and having a metal material.
According to paragraph 1,

The first cover extends along a direction in which the heater extends and further includes a cover insulation member disposed between the heater and the body.
According to clause 9,

When the first cover is coupled to the body, the cover insulation member is inserted into the inside of the body and surrounds a portion of the outside of the heater.
According to paragraph 1,

A heater assembly for an aerosol generating device, further comprising: an antenna disposed inside the body to surround at least a portion of the outside of the heater to recognize whether the aerosol generating article is accommodated in the receiving space.
According to clause 11,

A heater assembly for an aerosol generating device, further comprising: a shielding unit disposed between the antenna and the body to surround at least a portion of an outside of the antenna.
According to paragraph 1,

a second cover coupled to the body to form the receiving space together with the body and the first cover; and

A heater assembly for an aerosol generating device, further comprising a sealing portion that is inserted into the through hole formed in the second cover and seals the through hole.
A body forming a receiving space for receiving an aerosol-generating article;

a first cover coupled to the body and having an article insertion portion into which the aerosol-generating article is inserted;

a support unit disposed inside the body and the first cover and surrounding the aerosol-generating article accommodated in the receiving space; and

A heater that protrudes from the inner surface of the support unit toward the receiving space and heats the aerosol generating article by applying a magnetic field to a susceptor disposed in the receiving space.
A heater assembly for an aerosol generating device according to any one of claims 1 to 14;

a battery providing power to a heater assembly for the aerosol generating device; and

An aerosol generating device comprising; a control unit that controls the operation of the heater assembly for the aerosol generating device.