HEATER ASSEMBLY FOR AEROSOL GENERATION DEVICE AND AEROSOL GENERATION DEVICE INCLUDING THE SAME

Abstract

The heater assembly for the aerosol generating device includes a body that forms a storage space for storing an aerosol product, a heater that heats the aerosol product, and a heater that heats the aerosol product. To this end, the device includes a coil that applies a magnetic field to heat a susceptor placed in the storage space, an airflow passage cover that is located outside the body and has an airflow passage formed therein through which air passes, a pressure sensor that is located on the airflow passage cover and detects changes in pressure inside the airflow passage, and a moisture detection sensor that is located on a support unit that supports the coil and detects moisture in the aerosol product placed in the storage space.

Description

[Technical Field]

[0001] The present invention relates to a heater assembly for an aerosol generating device, which improves space utilization for arranging components such as a sensor that detects moisture in an aerosol product, and which allows smooth airflow, and an aerosol generating device including the same. [Background technology]

[0002] Recently, there has been an increasing demand for technologies to replace the method of supplying aerosols by burning a conventional cigarette. For example, research is being conducted into methods of supplying flavored aerosols by generating aerosols from liquid or solid aerosol-generating substances, or by generating vapor from a liquid aerosol-generating substance and then passing the generated vapor through a solid flavor carrier.

[0003] An example of an aerosol generating device is an induction heating type aerosol generating device that generates a magnetic field to heat a susceptor, thereby heating the aerosol generating material. Summary of the Invention [Problem to be solved by the invention]

[0004] The induction heating type aerosol generating device includes a sensor for detecting the moisture content of the aerosol product, a sensor for detecting the type of the aerosol product, and a sensor for detecting a change in pressure inside the airflow passage through which air passes.

[0005] In order to place these sensors inside the aerosol generating device, a specific space must be secured in advance, and in order to improve the utilization of the space inside the aerosol generating device while ensuring optimal function of each sensor, each sensor must be placed (mounted) in an appropriate location.

[0006] Furthermore, in order for a user to inhale aerosol through an aerosol product, external air must be introduced into the aerosol generating device. To this end, the aerosol generating device includes an airflow passage through which air moves inside. However, if air cannot move smoothly within the airflow passage, the user will be unable to easily inhale aerosol through the aerosol generating device.

[0007] The present invention provides a heater assembly for an aerosol generating device, which can improve the utilization of space for arranging components such as sensors within the aerosol generating device, and an aerosol generating device including the same.

[0008] The present invention also provides a heater assembly for an aerosol generating device that has a compact structure while accommodating various components, and an aerosol generating device including the same.

[0009] The present invention also provides a heater assembly for an aerosol generating device having a structure that allows a user to easily inhale aerosol by smoothing the flow of air within the airflow passage, and an aerosol generating device including the same.

[0010] The problems to be solved through the embodiments are not limited to the problems mentioned above, and problems not mentioned will be clearly understood by a person having ordinary skill in the art to which the embodiments pertain from this specification and the attached drawings. [Means for solving the problem]

[0011] According to one embodiment, a heater assembly for an aerosol generating device includes a body that forms a storage space for storing an aerosol product; a coil that applies a magnetic field to heat a susceptor placed in the storage space in order to heat the aerosol product; an air flow passage cover that is located outside the body and has an air flow passage through which air passes; a pressure sensor that is located on the air flow passage cover and detects changes in pressure inside the air flow passage; and a moisture detection sensor that is located on a support unit that supports the coil and detects moisture in the aerosol product stored in the storage space.

[0012] An aerosol generating device according to one embodiment includes a heater assembly for an aerosol generating device according to one embodiment, a battery that provides power to the heater assembly for the aerosol generating device, and a control unit that controls the operation of the heater assembly for the aerosol generating device. [Effects of the Invention]

[0013] The heater assembly for an aerosol generating device and the aerosol generating device according to various embodiments of the present invention can be miniaturized by increasing the utilization of space in which components are arranged, and can have a compact structure while accommodating various components.

[0014] Furthermore, the heater assembly for an aerosol generating device and the aerosol generating device according to various embodiments of the present invention facilitates airflow within the airflow passage, thereby allowing the user to easily inhale the aerosol.

[0015] The effects of the technical idea of ​​the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the following description. [Brief explanation of the drawings]

[0016] [Figure 1] 1 is a perspective view of an aerosol generating device according to one embodiment and an aerosol product inserted therein. [Figure 2]FIG. 1 is a front perspective view of a heater assembly for an aerosol generating device according to one embodiment. [Figure 3] FIG. 1 is a rear perspective view of a heater assembly for an aerosol generating device according to one embodiment. [Figure 4] FIG. 3 is an exploded perspective view of a heater assembly for the aerosol generating device according to one embodiment shown in FIG. 2. [Figure 5] This is a cross-sectional view of a heater assembly for an aerosol generating device according to one embodiment, taken along the II' cross-sectional line in Figure 2, to show the manner in which an aerosol product is inserted into the heater assembly. [Figure 6] This is a cross-sectional view of a heater assembly for an aerosol generating device according to one embodiment, taken along the II-II' cross-sectional line in Figure 2, to show the manner in which an aerosol product is inserted into the heater assembly. [Figure 7] 1 is an exploded perspective view of a holder, a first cover, a temperature sensing unit, and a shielding unit included in a heater assembly for an aerosol generating device according to one embodiment. FIG. [Figure 8] 1 is an exploded perspective view of a first cover, an airflow passage cover, and a mounting member included in a heater assembly for an aerosol generating device according to one embodiment. FIG. [Figure 9] FIG. 10 is a rear perspective view of a heater assembly for an aerosol generating device according to one embodiment, showing the connection relationship between the sealing portion, the second cover, the airflow passage cover, and the support unit. [Figure 10] 1 is an assembled perspective view of a support unit, a heater, a storage sensing unit, and a temperature sensing unit included in a heater assembly for an aerosol generating device according to one embodiment. FIG. [Figure 11] 1 is a diagram illustrating an example of an aerosol product according to one embodiment. [Figure 12] 1 is a diagram illustrating an example of an aerosol product according to one embodiment. [Figure 13] FIG. 10 is a block diagram of an aerosol generating device according to another embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0017] According to one embodiment, a heater assembly for an aerosol generating device includes a body that forms a storage space for storing an aerosol product; a coil that applies a magnetic field to heat a susceptor placed in the storage space in order to heat the aerosol product; an air flow passage cover that is located outside the body and has an air flow passage through which air passes; a pressure sensor that is located on the air flow passage cover and detects changes in pressure inside the air flow passage; and a moisture detection sensor that is located on a support unit that supports the coil and detects moisture in the aerosol product stored in the storage space.

[0018] According to one embodiment, the heater assembly for the aerosol generating device further includes an item detection sensor disposed in the air flow passage cover at a position spaced apart from the pressure sensor and configured to detect the type of the aerosol product contained in the storage space.

[0019] The airflow passage cover includes a sensor receiving portion that receives at least one of the pressure sensor and the object detection sensor.

[0020] The pressure sensor and the article detection sensor are mounted together on a single mounting member disposed on the airflow passage cover.

[0021] The heater assembly for an aerosol generating device according to one embodiment further includes a sensor protection cover coupled to the airflow passage cover so as to cover at least a portion of the pressure sensor.

[0022] The airflow passage cover has an air inlet through which air flows, and the air inlet is spaced apart from the portion into which the aerosol product is inserted.

[0023] The airflow passage communicates with the storage space, and at least a portion of the air moving through the airflow passage passes through the aerosol-producing product stored in the storage space and is discharged to the outside.

[0024] The moisture sensor is positioned on a segment of the aerosol product containing an aerosol-forming substance.

[0025] At least a portion of the moisture sensor includes a curved surface.

[0026] The heater assembly for an aerosol generating device according to one embodiment further includes a sensor bracket disposed outside the support unit, and the moisture sensor is coupled to the sensor bracket and then to the support unit.

[0027] The heater assembly for an aerosol generating device according to one embodiment further includes a first cover coupled to the body and including an article insertion portion into which the aerosol generating article is inserted.

[0028] The first cover extends along the direction in which the coil extends and includes a cover insulating member disposed between the coil and the body.

[0029] According to an embodiment, the heater assembly for an aerosol generating device further includes a temperature sensing unit disposed inside the body to sense a temperature of the coil, and the first cover further includes an escape groove into which the temperature sensing unit is inserted.

[0030] According to one embodiment, the heater assembly for the aerosol generating device further includes a holder coupled to the first cover, the holder having an insertion hole communicating with the item insertion portion so that the aerosol product can be freely accommodated in the storage space, and a ridge protruding toward the insertion hole to support the aerosol product.

[0031] An aerosol generating device according to one embodiment includes a heater assembly for an aerosol generating device according to one embodiment, a battery that provides power to the heater assembly for the aerosol generating device, and a control unit that controls the operation of the heater assembly for the aerosol generating device.

[0032] The terms used in the embodiments are generally used in the present invention, taking into consideration their functions in the present invention. However, these terms may change depending on the intentions of those skilled in the art, legal precedents, the emergence of new technologies, etc. In addition, in certain cases, the applicant may arbitrarily select terms, and in such cases, their meanings will be described in detail in the description of the invention. Therefore, the terms used in the present invention should be defined based on the meanings of the terms and the overall content of the present invention, rather than simply by their names.

[0033] Throughout the specification, when a part "includes" a certain element, this does not mean that it excludes other elements and may further include other elements, unless otherwise specified. Furthermore, terms such as "module" and "unit" used in the specification refer to a unit that processes at least one function or operation, and this may be implemented in hardware or software, or a combination of hardware and software.

[0034] As used herein, when a phrase such as "at least one of," precedes an element in an arrangement, it modifies the entire element and not each individual element in the arrangement. For example, the phrase "at least one of a, b, and c" should be interpreted as including a, b, and c, or a and b, a and c, b and c, or a, b, and c.

[0035] In one embodiment, the aerosol generating device is a device that generates an aerosol by electrically heating a cigarette contained in an internal space.

[0036] The aerosol generating device comprises a heater, in one embodiment the heater is an electrically resistive heater, for example the heater comprises a conductive track, and when an electric current is passed through the conductive track the heater is heated.

[0037] 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.

[0038] Cigarettes include tobacco rods and filter rods. Tobacco rods can be made in sheet or strand form, or can be made from shredded tobacco, which is a tobacco sheet. The tobacco rod can also be surrounded by a thermally conductive material, such as, but not limited to, a metal foil, such as aluminum foil.

[0039] The filter rod may also be a cellulose acetate filter. The filter rod may be composed of at least one or more segments. For example, the filter rod may have a first segment that cools the aerosol and a second segment that filters out certain components contained in the aerosol.

[0040] In other embodiments, the aerosol generating device is a device that generates an aerosol using a cartridge containing an aerosol generating substance.

[0041] The aerosol generating device includes a cartridge containing an aerosol-generating substance and a body supporting the cartridge. The cartridge is detachably connected to the body, but is not limited thereto. The cartridge may be formed integrally with the body, incorporated therein, or fixed so as not to be detachable by a user. The cartridge is attached to the body with the aerosol-generating substance contained therein. However, is not limited thereto, and the aerosol-generating substance may be injected into the cartridge while the cartridge is connected to the body.

[0042] The cartridge contains an aerosol-forming material in any one of a variety of states, such as a liquid, solid, gas, or gel. The aerosol-forming material includes a liquid composition. For example, the liquid composition may be a liquid containing a tobacco-containing substance that includes a volatile tobacco flavor component, or a liquid containing a non-tobacco substance.

[0043] The cartridge is activated by an electrical signal or a wireless signal transmitted from the main body to convert the phase of the aerosol-generating material inside the cartridge into a gas phase, thereby generating an aerosol. The aerosol refers to a gas mixture of vaporized particles generated from the aerosol-generating material and air.

[0044] In yet another embodiment, the aerosol generating device heats a liquid composition to generate an aerosol, and the generated aerosol is delivered to the user through the cigarette, i.e., the aerosol generated from the liquid composition travels along an airflow passage of the aerosol generating device, the airflow passage being configured to deliver the aerosol through the cigarette to the user.

[0045] In yet another embodiment, the aerosol generating device may be a device that generates an aerosol from an aerosol generating material using an ultrasonic vibration method, which refers to a method of generating an aerosol by atomizing an aerosol generating material using ultrasonic vibrations generated by a vibrator.

[0046] The aerosol generating device includes a vibrator that generates short-period vibrations to atomize the aerosol generating material. The vibrations generated by the vibrator are ultrasonic vibrations, and the frequency band of the ultrasonic vibrations is, but is not limited to, about 100 kHz to about 3.5 MHz.

[0047] The aerosol generating device further includes a wick that absorbs the aerosol-generating substance, for example, the wick is positioned to surround or contact at least a region of the vibrator.

[0048] When a voltage (e.g., an AC voltage) is applied to the vibrator, heat and / or ultrasonic vibrations are generated from the vibrator, and the heat and / or ultrasonic vibrations generated from the vibrator are transferred to the aerosol-forming substance absorbed in the wick. The aerosol-forming substance absorbed in the wick is converted into a gas phase by the heat and / or ultrasonic vibrations transferred from the vibrator, resulting in the generation of an aerosol.

[0049] For example, the heat generated from the vibrator reduces the viscosity of the aerosol-generating substance absorbed in the core, and the ultrasonic vibrations generated from the vibrator break the reduced viscosity aerosol-generating substance into fine particles, thereby generating an aerosol, but this is not limiting.

[0050] In yet another embodiment, the aerosol generating device is a device that generates an aerosol by heating an aerosol product contained in the aerosol generating device using an induction heating method.

[0051] The aerosol generating device includes a susceptor and a coil. In one embodiment, the coil applies a magnetic field to the susceptor. When power is supplied from the aerosol generating device to the coil, a magnetic field is formed inside the coil. In one embodiment, the susceptor is a magnetic material that generates heat when an external magnetic field is applied. When the susceptor is located inside the coil and a magnetic field is applied, the susceptor generates heat, thereby heating the aerosol product. Alternatively, the susceptor may be located inside the aerosol product.

[0052] In yet another embodiment, the aerosol generating device further comprises a cradle.

[0053] The aerosol generating device may be combined with a separate cradle to form a system. For example, the cradle may charge a battery of the aerosol generating device. Alternatively, the heater may heat the aerosol generating device when the cradle and the aerosol generating device are combined.

[0054] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily implement the present invention. The present invention may be embodied in a form that can be implemented in the aerosol generating device of the various embodiments described above, or may be embodied in various different forms, but is not limited to the embodiments described herein.

[0055] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0056] FIG. 1 is a perspective view of an aerosol generating device according to one embodiment and an aerosol product inserted therein.

[0057] 1, an aerosol generating device 1 according to one embodiment includes a heater assembly 10, a battery 20, a control unit 30, a vaporizer 40, and an aerosol generating device main body 50. However, the components of the aerosol generating device 1 are not limited thereto, and depending on the embodiment, at least one of the above-mentioned components (e.g., the vaporizer 40) may be omitted or another component may be added.

[0058] The aerosol generating device 1 according to one embodiment can generate aerosol by using an induction heating method to heat an aerosol product 2 accommodated in the aerosol generating device 1. The induction heating method refers to a method of applying an alternating magnetic field, which periodically changes direction, to a magnetic material that generates heat due to an external magnetic field, thereby causing the magnetic material to heat up.

[0059] When an alternating magnetic field is applied to a magnetic body, energy loss occurs in the magnetic body due to eddy current loss and hysteresis loss, and the lost energy can be released from the magnetic body as thermal energy. The greater the amplitude or frequency of the alternating magnetic field applied to the magnetic body, the greater the thermal energy that can be released from the magnetic body. The aerosol generation device 1 according to one embodiment can release thermal energy from the magnetic body by applying an alternating magnetic field to the magnetic body, and can transfer the thermal energy released from the magnetic body to an aerosol product.

[0060] The magnetic material that generates heat due to an external magnetic field also serves as a susceptor.

[0061] According to one embodiment, the susceptor is disposed inside the heater assembly 10 and is disposed so as to surround the aerosol product 2 contained in the containing space. In this case, the susceptor is generally formed in the shape of a hollow cylinder, but the shape is not limited thereto.

[0062] According to another embodiment, the susceptor may be disposed inside the aerosol product item 2 housed in the aerosol generating device 1. In this case, the susceptor may be contained inside the aerosol product item 2 in the form of a slice, a flake, a strip, or the like.

[0063] At least a portion of the susceptor may be formed of a ferromagnetic substance. For example, the susceptor may include a metal or carbon. The susceptor may include at least one of ferrite, a ferromagnetic alloy, stainless steel, and aluminum (Al). The susceptor may also include at least one of graphite, molybdenum, silicon carbide, niobium, a nickel alloy, a metal film, a ceramic such as zirconia, a transition metal such as nickel (Ni) or cobalt (Co), or a metalloid such as boron (B) or phosphorus (P).

[0064] The aerosol generation device 1 according to one embodiment accommodates a housing 2 into which an aerosol product 2 is inserted. The aerosol generation device 1 according to one embodiment has a space for accommodating the aerosol product 2. Here, a heater assembly 10 for an aerosol generation device according to one embodiment (hereinafter referred to as the "heater assembly") is disposed in the space of the aerosol generation device 1 for accommodating the aerosol product 2. For example, the heater assembly 10 includes a cylindrical accommodating space therein for accommodating the aerosol product 2. Therefore, when the aerosol product 2 is accommodated in the aerosol generation device 1, the aerosol product 2 can be accommodated in the accommodating space of the heater assembly 10. A detailed description of the aerosol product 2 accommodated in the aerosol generation device 1 according to one embodiment will be given later.

[0065] The heater assembly 10 according to one embodiment heats the aerosol product 2 housed in the aerosol generating device 1. As described above, the heater assembly 10 according to one embodiment can heat the aerosol product 2 by induction heating. According to one embodiment, the heater assembly 10 can apply an alternating magnetic field to the susceptor to generate heat.

[0066] The heater assembly 10 according to one embodiment may surround at least a portion of the aerosol product article 2 contained in the aerosol generating device 1. For example, the heater assembly 10 according to one embodiment surrounds the tobacco medium included in the aerosol product article 2. This may allow for more efficient transfer of heat from the heater assembly 10 to the tobacco medium.

[0067] The battery 20 supplies power to the aerosol generation device 1. For example, the battery 20 supplies power to the coil (which may also be called a "heater") of the heater assembly 10. As another example, the battery 20 may also supply power necessary for the operation of other components of the aerosol generation device 1 (e.g., the control unit 30, etc.).

[0068] The battery 20 includes a battery unit that supplies direct current to the coil of the heater assembly 10, and a converter that converts the direct current supplied from the battery unit into alternating current that is supplied to the coil of the heater assembly 10.

[0069] The battery unit supplies direct current to the aerosol generation 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.

[0070] The conversion unit includes a low-pass filter that filters the DC supplied from the battery and outputs the AC supplied to the heater assembly 10. The conversion unit may further include an amplifier for amplifying the DC supplied from the battery unit. For example, the conversion unit is embodied by a low-pass filter that forms a load network of a class-D amplifier.

[0071] The control unit 30 controls the overall operation of the aerosol generating device 1. The control unit 30 may be embodied 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 by the microprocessor, but is not limited to these.

[0072] According to one embodiment, the control unit 30 controls the power supplied to the heater assembly 10. Here, the control unit 30 also controls the coil of the heater assembly 10. The control unit 30 controls the battery 20 to adjust the power supplied to the coil of the heater assembly 10. For example, the control unit 30 can perform control based on the temperature of the coil of the heater assembly 10 to maintain a constant temperature at which the coil heats the aerosol product 2.

[0073] The vaporizer 40 heats the aerosol-generating substance in a liquid state to generate an aerosol, which is then transmitted to the user through the aerosol product 2. In other words, the aerosol generated by the vaporizer 40 travels along an airflow passage in the aerosol generating device 1, and the airflow passage is configured so that the aerosol generated by the vaporizer 40 passes through the aerosol product 2 and is transmitted to the user.

[0074] For example, the vaporizer 40 may include, but is not limited to, a storage unit for storing the aerosol generating substance in a liquid state, a liquid transfer means, and a heating element. For example, the storage unit, the liquid transfer means, and the heating element may be provided in the aerosol generating device 1 as independent modules.

[0075] The storage unit stores the aerosol-forming material in a liquid state. For example, the aerosol-forming material in a liquid state may be a liquid containing a tobacco-containing substance including a volatile tobacco flavor component, or a liquid containing a non-tobacco substance. The storage unit may be configured to be detachable from the vaporizer 40, or may be configured as an integral part of the vaporizer 40.

[0076] For example, the aerosol-generating substance may include water, solvent, ethanol, plant extract, fragrance, flavoring, or vitamin mixture. Flavorings include, but are not limited to, menthol, peppermint, spearmint oil, and various fruit-flavored ingredients. Flavorings include ingredients that provide the user with a variety of flavors or tastes. Vitamin mixtures include, but are not limited to, a mixture of at least one of vitamin A, vitamin B, vitamin C, and vitamin E. The aerosol-generating substance may also include an aerosol-forming agent such as glycerin or propylene glycol.

[0077] The liquid transfer means transfers the aerosol-generating substance in the reservoir to the heating element, and may be, for example, but not limited to, a wick such as cotton fiber, ceramic fiber, glass fiber, or porous ceramic.

[0078] The heating element is an element for heating the aerosol-generating substance delivered by the liquid delivery means. For example, the heating element may be, but is not limited to, a metal hot wire, a metal hot plate, a ceramic heater, or the like. The heating element may also be composed of a conductive filament such as a nichrome wire, and may be arranged in a wound structure around the liquid delivery means. The heating element is heated by supplying electric current and transfers heat to the aerosol-generating substance in contact with the heating element, thereby heating the aerosol-generating substance. As a result, an aerosol is generated.

[0079] For example, the vaporizer 40 may be called, but is not limited to, a cartomizer or an atomizer.

[0080] When the aerosol generating device 1 according to one embodiment further includes a vaporizer 40, the battery 20 supplies power to heat at least one of the heater assembly 10 or the vaporizer 40, and the control unit 30 can control the power supplied to at least one of the heater assembly 10 or the vaporizer 40.

[0081] When an aerosol product 2 is inserted into the aerosol generating device 1 according to one embodiment, the aerosol generating device 1 may activate the heater assembly 10 and / or the vaporizer 40 to generate aerosol from the aerosol product 2 and / or the vaporizer 40. The aerosol generated by the heater assembly 10 and / or the vaporizer 40 passes through the aerosol product 2 and is delivered to the user.

[0082] The aerosol generation device main body 50 forms the overall outer shape of the aerosol generation device 1 according to one embodiment. Components for operating the aerosol generation device 1 may be disposed inside the aerosol generation device main body 50. For example, the heater assembly 10, battery 20, control unit 30, and vaporizer 40 described above may be disposed inside the aerosol generation device 1. However, the heater assembly 10, battery 20, control unit 30, and vaporizer 40 are merely examples of components disposed inside the aerosol generation device 1, and other components (e.g., a user interface, a sensor, etc.) in addition to the above-described components may also be disposed inside the aerosol generation device 1.

[0083] The aerosol generation device main body 50 is formed with an air inlet 50a through which external air flows in.

[0084] Hereinafter, a heater assembly according to an embodiment will be described in detail with reference to the accompanying drawings.

[0085] FIG. 2 is a front perspective view of a heater assembly for an aerosol generating device according to one embodiment.

[0086] Referring to FIG. 2, the heater assembly 10 according to the embodiment includes a body 100, a holder 150, a first cover 200, a second cover 300, an airflow passage cover 350, a pressure sensor 400, and a mounting member 450.

[0087] The interior space of the body 100 defines a storage space for storing the aerosol product 2. A heater may be disposed in the storage space of the body 100 for storing the aerosol product 2. That is, the interior space of the body 100 may be a space for storing the aerosol product 2 and for generating a magnetic field for heating the aerosol product 2. When the aerosol product 2 is stored in the storage space of the body 100, the heater may be disposed to surround the aerosol product 2. Meanwhile, the term "heater" used herein may include a coil and a susceptor.

[0088] The body 100 functions as a main body of the heater assembly 10 for an aerosol generating device according to an embodiment, and a first cover 200 and a second cover 300 are coupled to the body 100. The first cover 200 and the second cover 300 are coupled to the body 100 and supported by the body 100. The body 100 is generally formed in a hollow cylindrical shape, but the shape is not limited thereto.

[0089] The holder 150 is disposed on one side (e.g., in the +z direction) of the body 100 and functions to support the aerosol product 2 accommodated in the accommodation space of the body 100. The holder 150 is formed with an insertion hole 150a into which the aerosol product 2 is inserted, and the insertion hole 150a communicates with the accommodation space of the body 100. The aerosol product 2 is accommodated in the accommodation space of the body 100 through the insertion hole 150a.

[0090] The first cover 200 may be coupled to one side (for example, the +z direction) of the body 100. The first cover 200 is disposed between the body 100 and the holder 150 and covers one side of the receiving space of the body 100.

[0091] The second cover 300 may be coupled to the other side (for example, the −z direction) of the body 100. The second cover 300 is coupled to the other side of the body 100 to cover the other side of the receiving space of the body 100.

[0092] The airflow passage cover 350 is located outside (for example, in the -x direction) of the body 100. An airflow passage is formed in the airflow passage cover 350, and external air moves into the heater assembly 10 through the airflow passage.

[0093] The pressure sensor 400 is disposed in the airflow passage cover 350 and senses pressure changes within the airflow passage. The pressure sensor 400 may also be called a puff sensor, and the pressure sensor 400 senses a user's puff based on various physical changes in the airflow passage or airflow channel. For example, the pressure sensor 400 senses a user's puff based on any one of a temperature change, a flow rate change, a voltage change, and a pressure change.

[0094] The mounting member 450 provides a space for mounting a sensor (for example, the pressure sensor 400) included in the heater assembly 10. The mounting member 450 is disposed on the airflow passage cover 350.

[0095] The pressure sensor 400 is mounted on the mounting member 450. With the pressure sensor 400 mounted on one side of the mounting member 450, components of the aerosol generating device body may be mounted on the other side of the mounting member 450 and electrically connected to the components. Here, the components may be at least one of a battery, a controller, and a memory. Information about a pressure change inside the airflow passage sensed by the pressure sensor 400 or information about a user's puff is transmitted to at least one of the controller and the memory. The mounting member 450 includes a metal material, for example, copper (Cu).

[0096] FIG. 3 is a rear perspective view of a heater assembly for an aerosol generating device according to one embodiment.

[0097] 3, the heater assembly 10 according to one embodiment includes a body 100, a seal portion 180, a first cover 200, a second cover 300, an airflow passage cover 350, a pressure sensor 400, and a mounting member 450. At least one of the components of the heater assembly 10 is the same as or similar to at least one of the components of the heater assembly 10 shown in FIG. 2, and therefore, a duplicated description will be omitted below.

[0098] A body groove 100a is formed in the body 100. At least a portion of the second cover 300 can be inserted into the body groove 100a. For example, one side of the second cover 300 (e.g., a portion facing the -x direction) is inserted into the body groove 100a.

[0099] The seal 180 is coupled to the second cover 300 and the airflow passage cover 350. The seal 180 is disposed on one side (e.g., in the -z direction) of the second cover 300 and one side (e.g., in the -z direction) of the airflow passage cover 350. The seal 180 serves to seal one side of the second cover 300 and one side of the airflow passage cover 350. The seal 180 includes a material such as rubber.

[0100] The sealing portion 180 and the second cover 300 have holes formed therein for one end of the mounting member 450, a wire for supplying power to the heater, one end of the storage sensing unit that senses the insertion of an aerosol product, and one end of the temperature sensing unit that senses the temperature of the heater to pass through.

[0101] Hereinafter, the coupling relationship of the heater assembly 10 according to an embodiment will be described in detail with reference to the accompanying drawings.

[0102] FIG. 4 is an exploded perspective view of a heater assembly for the aerosol generating device according to one embodiment shown in FIG.

[0103] Referring to FIG. 4, the heater assembly 10 according to one embodiment includes a body 100, a holder 150, a seal portion 180, a first cover 200, a second cover 300, an airflow passage cover 350, a pressure sensor 400, a mounting member 450, an item detection sensor 500, a moisture detection sensor 550, a support unit 600, a coil 650, a susceptor 700, a storage detection unit 750, a temperature detection unit 800, and a shielding unit 850.

[0104] At least one of the components of the heater assembly 10 according to one embodiment is identical to or similar to at least one of the components (e.g., the body 100, the holder 150, the first cover 200, and the second cover 300) of the heater assembly 10 for the aerosol generating device shown in Figures 2 and 3, and therefore, redundant description will be omitted below.

[0105] On the other hand, the components of the heater assembly 10 for an aerosol generating device according to one embodiment are not limited to these, and depending on the embodiment, at least one of the above-mentioned components may be omitted or other components may be added.

[0106] A first airflow cover seal member 380 and a second airflow cover seal member 390 are coupled to the airflow passage cover 350. The first airflow cover seal member 380 is disposed on the airflow passage cover 350 where air flows in. The first airflow cover seal member 380 functions to prevent the flowing air from leaking into spaces other than the airflow passage (for example, the space inside the aerosol generation device body). The first airflow cover seal member 380 is disposed between the airflow passage cover 350 and the air inlet of the aerosol generation device body.

[0107] The second airflow cover sealing member 390 is disposed at a portion where air is discharged on the airflow passage cover 350. The second airflow cover sealing member 390 functions to prevent air in the airflow passage from leaking to spaces other than the internal space of the support unit 600. The second airflow cover sealing member 390 is disposed between the second cover 300 and the airflow passage cover 350.

[0108] The first airflow cover sealing member 380 and the second airflow cover sealing member 390 may be sandwiched and coupled to the airflow passage cover 350, but the coupling method is not limited thereto. The first airflow cover sealing member 380 and the second airflow cover sealing member 390 each include a rubber material.

[0109] The pressure sensor 400 is mounted on a mounting member 450 and disposed on the airflow passage cover 350. The pressure sensor 400, disposed on the airflow passage cover 350, senses a change in pressure in the airflow passage formed inside the airflow passage cover 350.

[0110] At least a portion of the pressure sensor 400 may be covered by a protective cover 410. The protective cover 410 is coupled to the airflow passage cover 350 while covering the pressure sensor 400. The protective cover 410 functions to protect the pressure sensor 400 from foreign matter that has flowed into the aerosol generation device 1 or from external impacts applied to the aerosol generation device 1.

[0111] The mounting member 450 is disposed on the airflow passage cover 350. According to one embodiment, the pressure sensor 400 and the article detection sensor 500 may both be mounted on the mounting member 450. That is, the pressure sensor 400 and the article detection sensor 500 are electrically connected to the components of the aerosol generating device body via the single mounting member 450. As a result, the pressure sensor 400 and the article detection sensor 500 can be electrically connected to and operate with the components via the single mounting member 450, and therefore the heater assembly 10 according to one embodiment may implement a compact sensor arrangement (mounting) structure.

[0112] The article detection sensor 500 detects the type of aerosol product contained in the storage space. In one embodiment, the article detection sensor 500 can detect the type of aerosol product by detecting an identification mark or the like disposed on the outer surface of the aerosol product. The article detection sensor 500 can detect and recognize the identification mark by detecting the color, pattern, shape, or the like of the identification mark.

[0113] In one embodiment, the identification is a color or shape, a bar code, or a QR code (Quick Response code), and the item detection sensor 500 detects the color or shape, the bar code, or the QR code to recognize the type of aerosol product.

[0114] The control unit can heat the aerosol product with a predetermined temperature profile depending on the type of aerosol product detected by the product detection sensor 500. That is, when the product detection sensor 500 transmits information regarding the type of aerosol product detected to the control unit or memory, the memory calls up a predetermined temperature profile according to the input aerosol product, and the control unit controls the coil 650 to heat the aerosol product with the called up predetermined temperature profile.

[0115] The item detection sensor 500 may be a color sensor, an optical scanner, an NFC (Near Field Communication) reader, an RFID (Radio-Frequency Identification) reader, etc., depending on the type of identification. However, the item detection sensor 500 is applicable without limitation as long as it can recognize the identification.

[0116] In one embodiment, the item detection sensor 500 includes a color sensor. The color sensor includes an RGB (Red, Green, Blue) sensor or an XYZ optical sensor for measuring, determining, or classifying the color of the identification mark. The RGB sensor includes a three-color light source and detects color information by reflecting light off an object. The XYZ optical sensor includes an optical-to-digital converter and detects xy chromaticity coordinates according to the CIE (Commission Internationale de l'Eclairage) 1931 color space. The color sensor may also include a filter that blocks infrared light in the visible light range for more accurate color measurement.

[0117] In one embodiment, the article detection sensor 500 may include an infrared sensor, an ultrasonic sensor, a hardness measurement sensor (push-pull gauge), a capacitance sensor, and a resistance measurement circuit.

[0118] The article detection sensor 500 is disposed on the airflow passage cover 350 at a position spaced apart from the pressure sensor 400. That is, the article detection sensor 500 may be mounted on the mounting member 450 at a position different from that of the pressure sensor 400.

[0119] The article detection sensor 500 is mounted on the mounting member 450 and disposed on the airflow passage cover 350 so as to face the storage space in which the aerosol product is stored. This allows the heater assembly 10 according to one embodiment to have an arrangement structure that allows the article detection sensor 500 to easily detect the identification mark of the aerosol product.

[0120] The moisture detection sensor 550 is disposed in the support unit 600 inside the body 100 and detects moisture in the aerosol product accommodated in the accommodation space. When the susceptor 700 heats the aerosol product using the magnetic field generated by the coil 650, an aerosol can be generated. The generated aerosol contains a portion of moisture, which wets or adheres to the aerosol product. In one embodiment, the moisture detection sensor 550 detects the amount of moisture wetted or adhered to the aerosol product and transmits the detected amount to a controller or memory. When the moisture detection sensor 550 detects that the amount of moisture wetted or adhered to the aerosol product is equal to or greater than a predetermined amount, the controller generates a signal to replace the aerosol product or a signal indicating that the usage period has expired.

[0121] In one embodiment, the moisture sensor 550 senses a change in electromagnetic properties due to an object (aerosol product) adjacent to the heater assembly 10. For example, the moisture sensor 550 can be a capacitance sensor or a magnetic proximity sensor, but the type of the moisture sensor 550 is not limited to these.

[0122] The moisture detection sensor 550 has at least a curved surface that corresponds to the outer shape of the aerosol product. As a result, regardless of the orientation of the aerosol product contained in the containing space, the distance between the moisture detection sensor 550 and the aerosol product is approximately constant along the circumferential direction of the moisture detection sensor 550. As a result, the moisture detection sensor 550 can accurately detect the amount of moisture in the aerosol product regardless of the orientation of the aerosol product.

[0123] The moisture detecting sensor 550 is disposed on the support unit 600 via a sensor bracket 550a. That is, the moisture detecting sensor 550 is coupled to the sensor bracket 550a and disposed on the support unit 600. The sensor bracket 550a has at least a curved surface to correspond to the outer shape of the support unit 600. The moisture detecting sensor 550 may be attached to the sensor bracket 550a using tape, but the coupling method of the moisture detecting sensor 550 and the sensor bracket 550a is not limited thereto.

[0124] The support unit 600 is disposed inside the body 100 and functions to support the coil 650. When an aerosol product is accommodated in the accommodation space of the body 100, the support unit 600 is disposed to surround the aerosol product. The support unit 600 is also called a bobbin and is generally formed in a hollow cylindrical shape, but its shape is not limited thereto as long as it can support the coil 650.

[0125] The coil 650 is disposed inside the body 100 and heats the susceptor 700 disposed in the receiving space. When an aerosol product is received in the receiving space of the body 100, the coil 650 is disposed to surround the aerosol product.

[0126] The coil 650 applies an alternating magnetic field to the susceptor. When power is supplied to the coil from a battery, a magnetic field is formed inside the coil. When an alternating current is applied to the coil, the direction of the magnetic field formed inside the coil may change continuously. When the susceptor is positioned inside the coil and exposed to the alternating magnetic field whose direction changes periodically, the susceptor generates heat, and the aerosol product contained in the containing space of the body 100 is heated by the susceptor. This generates an aerosol.

[0127] The coil 650 extends in the longitudinal direction (e.g., z-axis direction) of the aerosol generation device 1. For example, the coil 650 may extend to a length corresponding to the length of the support unit 600, or may extend to a length shorter than the length of the support unit 600.

[0128] The coil 650 can be disposed in a position suitable for applying an alternating magnetic field to the susceptor 700. For example, the coil 650 is disposed on the support unit 600 so as to be located at a position corresponding to the susceptor 700. Such a size and arrangement of the coil 650 improves the efficiency with which the alternating magnetic field of the coil 650 is applied to the susceptor 700.

[0129] When the amplitude or frequency of the alternating magnetic field generated by the coil 650 is changed, the degree to which the susceptor 700 heats the aerosol product can also be changed. Because the amplitude or frequency of the magnetic field generated by the coil 650 is changed depending on the power applied to the coil 650, the aerosol generation device 1 can control the heating of the aerosol product by adjusting the power applied to the coil 650. For example, the aerosol generation device 1 controls the amplitude and frequency of the alternating current applied to the coil 650.

[0130] As one example, the coil 650 may be embodied as a solenoid. The coil 650 is a solenoid wound along the extension direction (e.g., the z-axis direction) of the support unit 600, and the susceptor 700 and the aerosol generator are located in the internal space of the solenoid. The material of the conductor constituting the solenoid is copper (Cu). However, the material is not limited thereto, and the conductor constituting the solenoid may be any one of silver (Ag), gold (Au), aluminum (Al), tungsten (W), zinc (Zn), and nickel (Ni), or an alloy containing at least one of them.

[0131] The susceptor 700 is disposed inside the body 100 so as to surround the aerosol product contained in the containing space. In one embodiment, the containing space is defined as the internal space of the susceptor 700. The susceptor 700 heats the aerosol product by generating heat when a magnetic field is applied by the coil 650. The susceptor 700 may be made of, but is not limited to, stainless steel (SUS).

[0132] The containment sensing unit 750 is disposed inside the body 100 and senses whether an aerosol product is contained in the containing space. Information sensed by the containment sensing unit 750 is transmitted to the control unit or memory of the aerosol generating device. When the containment sensing unit 750 senses the presence of an aerosol product, the control unit generates a signal to activate a component (e.g., coil 650) of the aerosol generating device.

[0133] As an example, the aerosol product includes a metal material such as aluminum, and the containment sensing unit 750 includes an inductance sensor that senses a change in inductance caused by the aerosol product being contained in the containment space.

[0134] As another example, the containment sensing unit 750 may include a capacitance sensor or a magnetic proximity sensor that can sense changes in electromagnetic properties due to aerosol-producing products adjacent to the containment space, but is not necessarily limited thereto, and the containment sensing unit 750 may also include other types of sensors, such as an optical sensor, a temperature sensor, a resistance sensor, etc.

[0135] The storage sensing unit 750 is disposed to surround the support unit 600 and the coil 650, and is disposed to surround the storage space of the body 100. Thus, when an aerosol product is stored in the storage space of the body 100, the storage sensing unit 750 is disposed to surround the aerosol product.

[0136] The temperature sensing unit 800 is disposed inside the body 100 and senses the temperature inside the accommodation space of the body 100. In one embodiment, the temperature sensing unit 800 senses the temperature of at least one of the coil 650 and the susceptor 700. Information sensed by the temperature sensing unit 800 is transmitted to a control unit or memory of the aerosol generating device 1.

[0137] The temperature sensing unit 800 extends in one direction (e.g., the z-axis direction) while being disposed on one side of the coil 650. The temperature sensing unit 800 is a thermocouple wire, but may be any other unit as long as it can sense the internal temperature of the accommodation space.

[0138] The shielding unit 850 is disposed inside the body 100 to surround the support unit 600 and the coil 650. The shielding unit 850 functions to shield the magnetic field generated inside the body 100 so as not to propagate to the outside. The shielding unit 850 includes a material such as aluminum (Al) or silver (Ag) and is generally formed in a hollow cylindrical shape, but the material and shape are not limited thereto.

[0139] Fig. 5 is a cross-sectional view of a heater assembly for an aerosol generating device according to one embodiment, taken along the line II' in Fig. 2, to show an aerosol product inserted into the heater assembly. Fig. 5 shows an aerosol product inserted into the heater assembly of Fig. 2.

[0140] Referring to FIG. 5, the heater assembly 10 according to one embodiment includes a body 100, a holder 150, a seal portion 180, a first cover 200, a second cover 300, an airflow passage cover 350, an item detection sensor 500, a moisture detection sensor 550, a support unit 600, a coil 650, a susceptor 700, a storage detection unit 750, and a shielding unit 850.

[0141] At least one of the components of the heater assembly 10 according to one embodiment is identical to or similar to at least one of the components of the heater assembly 10 for the aerosol generating device shown in FIG. 4, and therefore, a duplicate description will be omitted below.

[0142] The body 100 is disposed at the outermost position among the components of the heater assembly 10 (e.g., the moisture sensor 550, the support unit 600, the coil 650, the susceptor 700, the accommodation sensing unit 750, the temperature sensing unit 800, and the shielding unit 850). That is, the moisture sensor 550, the support unit 600, the coil 650, the susceptor 700, the accommodation sensing unit 750, the temperature sensing unit 800, and the shielding unit 850 are disposed inside the body 100. The body 100 includes a material such as stainless steel (SUS: Steel Use Stainless), aluminum, etc.

[0143] A first cover 200 is attached to the upper part of the body 100 (e.g., the part facing the +z direction) and a second cover 300 is attached to the lower part of the body 100 (e.g., the part facing the -z direction), thereby forming a storage space 10a inside the body 100 for storing an aerosol product 2.

[0144] The aerosol product article 2 and a susceptor 700 are disposed in the accommodation space 10a. In one embodiment, when the heater assembly 10 includes the susceptor 700 as shown in Fig. 5, the aerosol product article 2 is accommodated inside the susceptor 700 and is heated by the susceptor 700. In another embodiment, when the susceptor is disposed inside the aerosol product article 2 in the shape of a slice, a thin piece, or a strip, the coil 650 may be located at a position corresponding to the susceptor and apply a magnetic field to the susceptor to heat the susceptor.

[0145] When a susceptor is disposed inside the aerosol product 2, the heater assembly 10 for an aerosol generating device according to an embodiment does not include the susceptor 700 surrounding the aerosol product 2, and therefore may be embodied in a structure in which a space where the susceptor 700 is not disposed is omitted and other components can be disposed in the omitted space. This improves space utilization of the heater assembly 10 for an aerosol generating device according to an embodiment.

[0146] Although not shown, a material that reflects heat generated in the coil 650 and / or the susceptor 700 to the accommodation space 10a is deposited on 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. This reduces the possibility that the heat generated in the coil 650 and / or the susceptor 700 will be immediately dissipated to the outside of the heater assembly 10, thereby improving the heat insulating performance of the heater assembly 10. 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 includes a metal material such as silver (Ag).

[0147] The first cover 200 includes a cover body 210 and a cover heat insulating member 220 .

[0148] The cover main body 210 functions as the main body of the first cover 200. The holder 150 is disposed on one side (for example, in the +z direction) of the cover main body 210, and the body 100 is disposed on the other side (for example, in the -z direction) of the cover main body 210.

[0149] The cover insulating member 220 extends in one direction (for example, the -z direction) from the cover main body 210 and is disposed outside the coil 650. As a result, the cover insulating member 220 functions as a physical barrier that prevents heat generated in the accommodation 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 its thermal insulation performance by using a double physical barrier via the cover insulating member 220 in addition to the body 100.

[0150] The cover insulation member 220 is disposed between the body 100 and the coil 650. Specifically, the cover insulation member 220 is disposed inside the shielding unit 850, between the containment sensing unit 750 and the coil 650. In one embodiment, the cover insulation member 220 may be integrally formed with the cover body 210.

[0151] The airflow passage cover 350 is disposed on one side (e.g., the -x direction) of the body 100. An airflow passage 360 ​​is formed in the airflow passage cover 350. Air flows into the heater assembly 10 through the airflow passage 360 ​​and moves to the accommodation space 10a in which the aerosol product 2 is accommodated. That is, the airflow passage 360 ​​communicates with the accommodation space 10a, and at least a portion of the air moving through the airflow passage 360 ​​passes through the aerosol product 2 accommodated in the accommodation space 10a and is discharged to the outside.

[0152] An air inlet 350a is formed in the air flow passage cover 350. Air flows into the air flow passage 360 ​​in the air flow passage cover 350 through the air inlet 350a. The air inlet 350a is formed in one end of the air flow passage cover 350 and in the first air flow cover seal member 380. The air inlet 350a communicates with the air inlet of the aerosol generation device main body.

[0153] In one embodiment, the heater assembly 10 according to the present invention has a structure in which air flows into the accommodation space 10a only through the airflow passage 360 ​​formed in the airflow passage cover 350. As a result, the air flow from the outside is generated only once through the airflow passage 360 ​​formed in the airflow passage cover 350, and the pressure sensor 400 can measure the pressure in the airflow passage 360 ​​more precisely and accurately.

[0154] In one embodiment, the air inlet 350a is spaced apart from the holder 150 into which the aerosol product 2 is inserted. As a result, the air inlet 350a can be spaced apart a predetermined distance from the aerosol product 2 that the user inhales by contacting the mouth, and thus the pressure change value (Δ value) inside the aerosol generating device increases during inhalation.

[0155] The pressure change value (△ value) is a measure of the fluidity of air / airflow within the aerosol generator, and the larger the pressure change value (△ value), the greater the air fluidity. This is because the greater the difference between the pressure inside the aerosol generator and the external pressure (which is almost constant at atmospheric pressure), the easier it is for air to flow into the aerosol generator. A large pressure change value (△ value) means that the pressure inside the aerosol generator becomes lower than the initial pressure.

[0156] The comparative example, in which the air inlet 350a is located in the holder 150, has a structure in which the portion through which the user inhales and the portion into which the air flows are located close to each other. Therefore, the comparative example has a structure in which air flows in through the portion through which the user inhales, and the pressure change value (Δ value) is easily affected by the user's inhalation. For example, if the pressure change value (Δ value) inside the aerosol generator does not increase due to the user's usage characteristics (e.g., weak inhalation), it becomes difficult for external air to flow into the aerosol generator. As a result, the comparative example has a problem in that the mobility of air inside the aerosol generator is reduced.

[0157] According to the heater assembly 10 of one embodiment, the airflow passage 360 ​​is not formed in the holder 150 or the body 100, but is formed on a separate airflow passage cover 350 disposed on one side of the body 100. That is, the air inlet 350a, which is a part of the airflow passage 360, is disposed a predetermined distance away from the aerosol product 2 that the user inhales through their mouth. As a result, the heater assembly 10 of one embodiment includes a structure in which the pressure change value (Δ value) is not significantly affected by the user's inhalation, and therefore the pressure change value (Δ value) increases regardless of the inhalation characteristics. This increases the mobility of air within the aerosol generating device.

[0158] An air outlet 350b is formed in the air flow passage cover 350. The air outlet 350b is formed in the air flow passage cover 350 at a position separated from the air inlet 350a. Air moves from inside the air flow passage cover 350 to the accommodation space 10a inside the heater assembly 10 through the air outlet 350b. This is because a hole communicating with the air outlet 350b is formed in the support unit 600. The air outlet 350b may be formed in the other end of the air flow passage cover 350 communicating with the hole in the support unit 600 and in the second air flow cover seal member 390.

[0159] Air flowing into the air inlet of the aerosol generation device body passes through the air inlet 350a formed in the air flow passage cover 350, the air flow passage 360, the air outlet 350b, and the internal space of the support unit 600, and moves into the storage space 10a.

[0160] The article detection sensor 500 is disposed on the airflow passage cover 350 so as to be located on one side (e.g., in the -x direction) of the aerosol product 2. The article detection sensor 500 is disposed on the airflow passage cover 350 so as to be located at a position corresponding to an identification mark (not shown) disposed on the outer surface of the aerosol product 2 in order to detect the identification mark.

[0161] The moisture detecting sensor 550 is disposed on one side (e.g., in the +x direction) of the aerosol product 2. The moisture detecting sensor 550 is disposed to correspond to a segment of the aerosol product 2 containing an aerosol-generating material. To this end, the sensor bracket 550a may be coupled to the support unit 600 at a position corresponding to the segment of the aerosol product 2. Moisture generated when aerosol is generated from the aerosol-generating material contained in the aerosol product 2 may concentrate on or adhere to the segment. However, since the moisture detecting sensor 550 is disposed to correspond to the segment, it can accurately and precisely measure the moisture content of the aerosol product 2. For example, the moisture detecting sensor 550 is disposed downward (e.g., in the -z direction) from the middle of the support unit 600.

[0162] The support unit 600 is disposed so as to surround the accommodation space 10a, and supports a coil 650 that causes the susceptor 700 to generate heat. The support unit 600 is disposed inside the cover heat insulating member 220, and is supported by the first cover 200.

[0163] The coil 650 is disposed in the support unit 600 and may generate heat in the susceptor disposed in the accommodation space 10a. The coil 650 is wound and installed on the outer surface of the support unit 600. The coil 650 may be formed to have a circular cross-sectional area when cut based on a plane (e.g., an xz plane) passing through a first direction (e.g., the z-axis direction) in which the support unit 600 extends and a second direction (e.g., the x-axis direction) intersecting the direction in which the support unit 600 extends. That is, when the coil 650 is viewed from the y-axis direction, the coil 650 may be formed to have a circular cross-sectional area.

[0164] The susceptor 700 is disposed so as to surround the accommodation space 10a and heats the aerosol product 2 disposed in the accommodation space 10a. The susceptor 700 is disposed inside the support unit 600 and is supported by the support unit 600. The susceptor 700 is formed in a hollow cylindrical shape, but the shape is not limited to this.

[0165] The storage sensing unit 750 is disposed to surround the storage space 10a. The storage sensing unit 750 may be disposed outside the coil 650 between the cover insulating member 220 and the shielding unit 850.

[0166] The shielding unit 850 is disposed in the interior space of the body 100 to surround the receiving space 10a, and is disposed between the body 100 and the receiving sensing unit 750. That is, the shielding unit 850 is disposed outside the coil 650, thereby performing the function of shielding the magnetic field generated by the coil 650.

[0167] Figure 6 is a cross-sectional view of a heater assembly for an aerosol generating device according to one embodiment, taken along the II-II' cross-sectional line in Figure 2, to show the manner in which an aerosol product is inserted into the heater assembly.

[0168] Referring to FIG. 6, the heater assembly 10 according to one embodiment includes a body 100, a holder 150, a seal portion 180, a first cover 200, a second cover 300, an airflow passage cover 350, a pressure sensor 400, an item detection sensor 500, a moisture detection sensor 550, a support unit 600, a coil 650, a susceptor 700, a storage detection unit 750, and a shielding unit 850.

[0169] At least one of the components of the heater assembly 10 according to one embodiment is identical to or similar to at least one of the components of the heater assembly 10 for the aerosol generating device shown in FIG. 5, and therefore, a duplicate description will be omitted below.

[0170] The pressure sensor 400 is disposed in the airflow passage cover 350 to sense pressure changes in the airflow passage. While Fig. 6 shows an embodiment in which the pressure sensor 400 is disposed in a portion spaced apart upward (e.g., in the +z direction) from the middle portion of the airflow passage cover 350, this is merely an example, and the position of the pressure sensor 400 may be varied as long as it can sense pressure changes inside the airflow passage.

[0171] 7 is an exploded perspective view of a holder, a first cover, a temperature sensing unit, and a shielding unit included in a heater assembly for an aerosol generating device according to an embodiment. Hereinafter, the coupling relationship between the holder, the first cover, the temperature sensing unit, and the shielding unit will be described with reference to the accompanying drawings.

[0172] Referring to FIG. 7, the heater assembly 10 according to one embodiment includes a holder 150, a first cover 200, a temperature sensing unit 800, and a shielding unit 850.

[0173] At least one of the components of the heater assembly 10 according to one embodiment is identical to or similar to at least one of the components of the heater assembly 10 for the aerosol generating device shown in Figures 4 and 5, and therefore, a duplicate description will be omitted below.

[0174] The holder 150 is located on one side (e.g., in the +z direction) of the first cover 200 and is coupled to the first cover 200. The holder 150 may be coupled to the first cover 200 using a coupling member such as a screw, but the coupling method is not limited thereto.

[0175] The holder 150 includes ridges 150b that support the aerosol product 2 inserted into the insertion hole 150a. The ridges 150b protrude toward the insertion hole 150a and contact the aerosol product 2 inserted into the insertion hole 150a. In one embodiment, a plurality of ridges 150b may be spaced apart along the circumferential direction of the insertion hole 150a.

[0176] The first cover 200 includes a cover body 210 , a cover heat insulating member 220 , and an avoidance groove 230 .

[0177] The cover body 210 is formed with an article insertion portion 200a, and an aerosol-producing article inserted through the insertion hole 150a can be accommodated in the accommodation space 10a through the cover body 210. Although not shown, the cover body 210 is formed with holes into which a connecting member such as a screw can be inserted, and the cover body 210 can be fixedly coupled to the aerosol generating device body by connecting the screw through the hole.

[0178] The cover heat insulating member 220 extends from the cover body 210 in one direction (for example, the −z direction) and is disposed so as to surround the coil 650 and the susceptor 700.

[0179] The avoidance grooves 230 are formed in the cover insulation member 220. The avoidance grooves 230 extend in the direction in which the cover insulation member 220 extends (for example, the z-axis direction). A plurality of the avoidance grooves 230 are formed in the cover insulation member 220 at intervals from one another.

[0180] At least a portion of the temperature sensing unit 800 is inserted into the avoidance groove 230. As a result, when assembly into the heater assembly 10 according to an embodiment is completed, the cover insulation member 220 and the temperature sensing unit 800 can be disposed inside the body without interfering with each other. Therefore, there is no need to secure a separate space inside the heater assembly 10 to space the temperature sensing unit 800 from the cover insulation member 220, thereby enabling the heater assembly 10 to be made more compact.

[0181] When the cover insulation member 220 includes a plurality of avoidance grooves 230, the temperature sensing unit 800 may be inserted into any one of the avoidance grooves 230, and the wire of the coil 650 may be inserted into any other of the avoidance grooves 230. This allows the heater assembly 10 to be further miniaturized.

[0182] The shielding unit 850 may be disposed to surround the cover insulation member 220 and may be disposed inside the temperature sensing unit 800. In this case, the shielding unit 850 may be formed with a temperature sensing unit insertion groove 850a into which at least a portion of the temperature sensing unit 800 is inserted. Thus, when assembly into the heater assembly 10 according to an embodiment is completed, the temperature sensing unit 800 and the shielding unit 850 may be disposed inside the body without interfering with each other.

[0183] 8 is an exploded perspective view of a first cover, an airflow passage cover, and a mounting member included in a heater assembly for an aerosol generating device according to an embodiment. Hereinafter, the coupling relationship between the first cover, the airflow passage cover, and the mounting member will be described with reference to the accompanying drawings.

[0184] Referring to FIG. 8, the heater assembly 10 according to one embodiment includes a first cover 200, an airflow passage cover 350, a pressure sensor 400, a mounting member 450, and an article detection sensor 500.

[0185] At least one of the components of the heater assembly 10 according to one embodiment is identical to or similar to at least one of the components of the heater assembly 10 for the aerosol generating device shown in Figures 4 to 7, and therefore, a duplicate description will be omitted below.

[0186] The airflow passage cover 350 includes an airflow passage cover body 351 and a cover locking member 352 .

[0187] The airflow passage cover main body 351 functions as the main body of the airflow passage cover 350. An airflow passage is formed inside the airflow passage cover main body 351, and an air inlet 350a and an air outlet 350b are formed at positions spaced apart from each other. The airflow passage, the air inlet 350a, and the air outlet 350b are in communication with each other.

[0188] The cover locking member 352 is formed on the airflow passage cover body 351. The cover locking member 352 protrudes from the airflow passage cover body 351 toward the first cover 200. The cover locking member 352 can be inserted into the airflow passage cover coupling groove 240 formed in the cover body 210. When the cover locking member 352 is inserted into the airflow passage cover coupling groove 240, the airflow passage cover 350 is fixedly coupled to the first cover 200. Thus, according to the heater assembly 10 according to one embodiment, the first cover 200 and the airflow passage cover 350 can be coupled to each other using a simple hook coupling structure. The airflow passage cover coupling groove 240 is formed on the upper surface (e.g., the surface facing the +z direction) of the cover body 210.

[0189] The airflow passage cover 350 further includes a receiving portion 370 .

[0190] The receiving portion 370 is formed in the airflow passage cover body 351 and serves to place the mounting member 450 and the sensors 400 and 500 on the airflow passage cover 350 .

[0191] The receiving portion 370 includes a pressure sensor receiving portion 371, an object detection sensor receiving portion 372, and a mounting member receiving portion 373. The receiving portions 371, 372, and 373 are connected to each other and are located at different portions of the airflow passage cover 350.

[0192] In one embodiment, the pressure sensor accommodating portion 371 is located on a first side (e.g., a portion facing the +y direction) of the airflow passage cover 350, the item detection sensor accommodating portion 372 is located on a second side (e.g., a portion facing the +x direction) of the airflow passage cover 350, and the mounting member accommodating portion 373 is located on each of the first side (e.g., a portion facing the +y direction) and the second side (e.g., a portion facing the +x direction) of the airflow passage cover 350.

[0193] The pressure sensor 400 is accommodated in the pressure sensor accommodating portion 371. The pressure sensor 400 senses the internal pressure of the airflow passage while being accommodated in the pressure sensor accommodating portion 371. The airflow passage cover body 351 has a through-hole 350c that communicates with the pressure sensor accommodating portion 371, and the pressure sensor 400 can be inserted into the through-hole 350c to easily sense pressure changes within the airflow passage because the through-hole 350c communicates with the airflow passage.

[0194] The article detection sensor 500 is housed in the article detection sensor housing portion 372. While housed in the article detection sensor housing portion 372, the article detection sensor 500 senses the identification mark of the aerosol product.

[0195] The mounting member 450 is coupled to the airflow passage cover 350 by being received in the receiving portion 370. The pressure sensor 400 and the item detection sensor 500 are mounted together via one mounting member 450. As a result, the pressure sensor 400 and the item detection sensor 500 can be simultaneously disposed on the airflow passage cover 350 through a compact mounting structure.

[0196] The mounting member 450 includes a first mounting member 451 , a second mounting member 452 , and a third mounting member 453 .

[0197] The first mounting member 451 functions as the main body of the mounting member 450, and is connected to the second mounting member 452, the third mounting member 453, and the connecting portion 450a. The first mounting member 450 extends along the direction in which the airflow passage cover 350 extends (for example, the z-axis direction), and is housed in the mounting member housing portion 373.

[0198] The second mounting member 452 extends in one direction (for example, the +z direction) from the first mounting member 451. The pressure sensor 400 is disposed on the second mounting member 452. The pressure sensor 400 is housed in the pressure sensor accommodating portion 371 while being mounted on the second mounting member 452. The second mounting member 452 is housed in both the mounting member accommodating portion 373 and the pressure sensor accommodating portion 371.

[0199] The third mounting member 453 includes a first portion extending in one direction (e.g., the +x direction) from the first mounting member 451, a second portion extending in one direction (e.g., the -y direction) from the first portion, and a third portion extending in one direction (e.g., the +z direction) from the second portion. The item detection sensor 500 is disposed on the third mounting member 453. Specifically, the item detection sensor 500 is disposed on the third portion of the third mounting member 453. The item detection sensor 500 is accommodated in the pressure sensor accommodating portion 371 while mounted on the third mounting member 453. The third mounting member 453 is accommodated in both the mounting member accommodating portion 373 and the pressure sensor accommodating portion 371.

[0200] The mounting member 450 includes a connecting portion 450a. The connecting portion 450a is connected to an end of the first mounting member 451 and passes through the sealing portion to be connected to a memory or a control unit of the aerosol generation device main body. Information detected by the pressure sensor 400 and the article detection sensor 500 is transmitted to the memory or the control unit through the connecting portion 450a of the mounting member 450. The connecting portion 450a, the third mounting member 453, the second mounting member 452, and the first mounting member 451 are integrally formed.

[0201] 9 is a rear perspective view of a heater assembly for an aerosol generating device according to one embodiment, showing the coupling relationship between the seal portion 180, the second cover 300, the airflow passage cover 350, and the support unit 600. The coupling relationship between the seal portion 180, the second cover 300, the airflow passage cover 350, and the support unit 600 will be described below.

[0202] The heater assembly 10 according to one embodiment includes a seal portion 180, a second cover 300, an airflow passage cover 350, and a support unit 600. At least one of the components of the heater assembly 10 is the same as or similar to at least one of the components of the heater assembly 10 for the aerosol generating device shown in Figures 4 to 8, and therefore, a duplicated description will be omitted below.

[0203] The airflow passage inside the airflow passage cover 350 communicates with the inside of the support unit 600 , but the airflow passage cover 350 is not directly connected to the support unit 600 but is coupled to the support unit 600 via the second cover 300 .

[0204] In one embodiment, the airflow passage cover 350 is connected to the second cover 300 using a connecting member such as a screw, but the connecting method is not limited thereto. Also, the seal part 180 is connected to the second cover 300 and the airflow passage cover 350 on the underside (e.g., in the -z direction) of the second cover 300 and the airflow passage cover 350, respectively.

[0205] 10 is a perspective view of a support unit 600, a heater, a storage and sensing unit 750, and a temperature sensing unit 800, which are included in a heater assembly for an aerosol generating device according to an embodiment. Hereinafter, the connection relationship between the support unit 600, the coil 650, the storage and sensing unit 750, and the temperature sensing unit 800 will be described with reference to the accompanying drawings.

[0206] 10, the heater assembly 10 according to one embodiment includes a support unit 600, a coil 650, a housing sensing unit 750, and a temperature sensing unit 800. At least one of the components of the heater assembly 10 is the same as or similar to at least one of the components of the heater assembly 10 for the aerosol generating device shown in FIGS. 4 to 9, and therefore, a duplicated description will be omitted below.

[0207] The coil 650 is disposed outside the support unit 600 and is electrically connected to at least one of a battery, a memory, and a control unit of the aerosol generating device body through a connection part 650a.

[0208] The containment sensing unit 750 is disposed to surround the outside of the support unit 600 and the coil 650, and extends along the extension direction (e.g., the z-axis direction) of the support unit 600 and the coil 650. The containment sensing unit 750 is electrically connected to at least one of the battery, memory, and control unit of the aerosol generation device body through the connection part 750a.

[0209] The containment sensing unit 750 is disposed inside the body so as to surround a portion of the outer surface of the support unit 600 and the coil 650. As a result, in the heater assembly 10 according to the embodiment, the containment sensing unit 750 can be more easily inserted into the body 100 than in the comparative example in which the containment sensing unit 750 surrounds the entire outer surface of the support unit 600 and the coil 650. This improves ease of assembly into the heater assembly 10.

[0210] The temperature sensing unit 800 is disposed inside the body on one side (e.g., in the +x direction) of the support unit 600 and can sense the temperature of at least one of the coil 650 or the susceptor. In one embodiment, the temperature sensing unit 800 can sense the temperature of the coil 650 or the susceptor by contacting the support unit 600 or the susceptor.

[0211] The temperature sensing unit 800 includes a sensing body 810 and a sensing connection part 820 .

[0212] The sensing body 810 functions as the main body of the temperature sensing unit 800 and extends along the extension direction (e.g., the z-axis direction) of the heater assembly 10. The sensing body 810 is disposed between the body and the shielding unit. The sensing body 810 may be integrally formed with the sensing connecting portion 820.

[0213] The sensing connector 820 is connected to the support unit 600 or the susceptor. JPEG2025538563000002.jpg712 The sensing connection part 820 has a shape of a letter. The sensing connection part 820 includes a first part extending in a direction intersecting the extension direction of the sensing body 810 (e.g., the -x direction) and a second part extending in a direction intersecting the extension direction of the first part (e.g., the -z direction). At least a part of the first part is supported by the support unit 600, and at least a part of the second part is connected to the support unit 600 or the susceptor. In this case, the support unit 600 may have a groove 600a formed therein into which the first part of the sensing connection part 820 is inserted.

[0214] The temperature sensing unit 800 is electrically connected to at least one of a battery, a memory, and a control unit of the aerosol generating device body through a connection part 800a, which extends from the sensing body 810 in one direction (e.g., the -z direction).

[0215] 11 and 12 are diagrams illustrating examples of aerosol products according to one embodiment.

[0216] An example of an aerosol product 2 will now be described with reference to FIGS.

[0217] 11 and 12 are diagrams illustrating examples of aerosol products according to one embodiment.

[0218] Referring to FIG. 11, the aerosol production product 2 comprises a tobacco rod 21 and a filter rod 22 .

[0219] 11, the filter rod 22 is shown as a single segment, but is not limited to this. In other words, the filter rod 22 may be composed of multiple segments. For example, the filter rod 22 may include a segment that cools the aerosol and a segment that filters specific components contained in the aerosol. If necessary, the filter rod 22 may also include at least one segment that performs another function.

[0220] The aerosol-producing article 2 may have a diameter ranging from 5 mm to 9 mm and a length of about 48 mm, but is not limited thereto. For example, but not limited to, the tobacco rod 21 may have a length of about 12 mm, the first segment of the filter rod 22 may have a length of about 10 mm, the second segment of the filter rod 22 may have a length of about 14 mm, and the third segment of the filter rod 22 may have a length of about 12 mm.

[0221] The aerosol product 2 is wrapped in at least one wrapper 24. The wrapper 24 has at least one hole through which external air can flow in or internal gas can flow out. In one example, the aerosol product 2 is wrapped in a single wrapper 24. In another example, the aerosol product 2 may be wrapped in two or more wrappers 24 stacked one on top of the other. For example, the tobacco rod 21 is wrapped in a first wrapper 24a, and the filter rod 22 is wrapped in wrappers 24a, 24b, and 24c. The entire aerosol product 2 may then be repackaged in a single wrapper 24e. If the filter rod 22 is composed of multiple segments, each segment may be wrapped in a wrapper 24b, 24c, or 24d.

[0222] The first wrapper 24a and the second wrapper 24b are made of common filter wrapping paper. For example, the first wrapper 24a and the second wrapper 24b are porous wrapping paper or non-porous wrapping paper. The first wrapper 24a and the second wrapper 24b may also be made of oil-resistant paper and / or aluminum-clad wrapping material.

[0223] The third wrapper 24c may be made of hard wrapping paper. For example, the basis weight of the third wrapper 24c is 88 g / m 2 or 96 g / m 2 The thickness of the third wrapper 24c is in the range of 120 μm to 130 μm, preferably 125 μm.

[0224] The fourth wrapper 24d may be made of hard wrapping paper. For example, the basis weight of the fourth wrapper 24d is 88 g / m 2 or 96 g / m 2 and preferably 90 g / m 2 or 94g / m 2 The thickness of the fourth wrapper 24d is within the range of 120 μm to 130 μm, and preferably 125 μm.

[0225] The fifth wrapper 24e may be made of sterilized paper (MFW). Here, sterilized paper (MFW) refers to paper specially manufactured to have improved tensile strength, water resistance, smoothness, etc. compared to general paper. For example, the basis weight of the fifth wrapper 24e is 57 g / m 2 or 63g / m 2 and preferably within the range of 60 g / m 2 The thickness of the fifth wrapper 24e is in the range of 64 μm to 70 μm, and is preferably 67 μm.

[0226] A predetermined material may be added to the fifth wrapper 24e. Examples of the predetermined material include, but are not limited to, silicon. For example, silicon has properties such as heat resistance (i.e., small changes due to temperature), oxidation resistance (i.e., resistance to various chemicals), water repellency, and electrical insulation. However, any material other than silicon that has the above-mentioned properties may be applied (or coated) to the fifth wrapper 24e.

[0227] The fifth flap 24e prevents the aerosol product 2 from being burned. For example, if the tobacco rod 21 is heated by a heater, the aerosol product 2 may be burned. Specifically, if any one of the substances contained in the tobacco rod 21 is heated above its ignition point, the aerosol product 2 may be burned. Even in such a case, the fifth flap 24e contains a non-flammable substance, preventing the aerosol product 2 from being burned.

[0228] Furthermore, the fifth wrapper 24e can prevent the aerosol generation device 1 from being contaminated by the substance generated in the aerosol product 2. A liquid substance is generated in the aerosol product 2 when the user puffs. For example, the aerosol generated in the aerosol product 2 is cooled by external air, generating a liquid substance (e.g., moisture). The fifth wrapper 24e encases the aerosol product 2, thereby preventing the liquid substance generated in the aerosol product 2 from leaking outside the aerosol product 2.

[0229] The tobacco rod 21 includes an aerosol-forming material. For example, the aerosol-forming material may include at least one of glycerin, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol, but is not limited to these. The tobacco rod 21 may also include other additives, such as flavoring agents, humectants, and / or organic acids. Flavoring liquids, such as menthol or humectants, may also be added to the tobacco rod 21 by spraying them onto the tobacco rod 21.

[0230] The tobacco rod 21 may be made in various ways. For example, the tobacco rod 21 may be made of a sheet or a strand. Alternatively, the tobacco rod 21 may be made of shredded tobacco, which is a tobacco sheet cut into small pieces. The tobacco rod 21 may also be surrounded by a thermally conductive material. For example, the thermally conductive material may be a metal foil such as aluminum foil, but is not limited to this. For example, the thermally conductive material surrounding the tobacco rod 21 may uniformly distribute heat transferred to the tobacco rod 21, improving the thermal conductivity of the tobacco rod and thereby improving the tobacco taste. The thermally conductive material surrounding the tobacco rod 21 may also function as a susceptor heated by an induction heater. Although not shown in the drawings, the tobacco rod 21 may further include a susceptor in addition to the thermally conductive material surrounding the exterior.

[0231] The filter rod 22 may be a cellulose acetate filter. Meanwhile, the shape of the filter rod 22 is not limited. For example, the filter rod 22 may be a cylindrical rod or a tubular rod with a hollow interior. The filter rod 22 may also be a recessed rod. If the filter rod 22 is composed of multiple segments, at least one of the multiple segments may be manufactured in a different shape.

[0232] The first segment of the filter rod 22 may be a cellulose acetate filter. For example, the first segment may be a tube-shaped structure having a hollow interior. The first segment may prevent the inner material of the tobacco rod 21 from being pushed outward when a heater is inserted, and may also have a cooling effect on the aerosol. The hollow interior of the first segment may have a diameter ranging from 2 mm to 4.5 mm, but is not limited thereto.

[0233] The length of the first segment may be within the range of 4 mm to 30 mm, but is not limited thereto, and preferably is 10 mm, but is not limited thereto.

[0234] The hardness of the first segment can be adjusted by adjusting the amount of plasticizer used during manufacturing. The first segment is manufactured by inserting a film, tube, or other structure made of the same or different material into its interior (e.g., hollow).

[0235] The second segment of the filter rod 22 cools the aerosol generated by the heater heating the tobacco rod 21. Thus, the user can inhale the aerosol that has been cooled to an appropriate temperature.

[0236] The length or diameter of the second segment may vary depending on the shape of the aerosol product 2. For example, the length of the second segment may be within the range of 7 mm to 20 mm. Preferably, the length of the second segment is 14 mm, but is not limited thereto.

[0237] The second segment is made by weaving polymer fibers. In this case, a scented liquid may be applied to the polymer fibers. Alternatively, the second segment may be made by weaving a separate fiber coated with a scented liquid and a polymer fiber together. Alternatively, the second segment is formed by a crimped polymer sheet.

[0238] For example, the polymer is made of a material 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.

[0239] The second segment is formed from woven polymer fibers or a crimped polymer sheet, whereby the second segment comprises one or more longitudinally extending channels, where a channel refers to a passageway through which a gas (e.g., air or aerosol) passes.

[0240] For example, the second segment of crimped polymer sheet is formed from a material having a thickness between about 5 μm and about 300 μm, e.g., between about 10 μm and about 250 μm, and the total surface area of ​​the second segment is about 300 mm 2 / mm and approximately 1000mm 2 / mm. The aerosol cooling element has a specific surface area of ​​approximately 10 mm 2 / mg and about 100mm 2 It is made from between 1 / mg of material.

[0241] The second segment includes a thread containing a volatile flavoring component, such as, but not limited to, menthol. For example, the thread may be loaded with a sufficient amount of menthol to provide the second segment with at least 1.5 mg of menthol.

[0242] The third segment of the filter rod 22 may be a cellulose acetate filter. The length of the third segment may be within the range of 4 mm to 20 mm. For example, the length of the third segment may be 12 mm, but is not limited thereto.

[0243] During the manufacturing process of the third segment, the third segment may be manufactured so that a flavor is generated by spraying a flavoring liquid onto 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 effect of improving the persistence of the flavor delivered to the user is achieved.

[0244] The filter rod 22 also includes at least one capsule 23. The capsule 23 may function to generate a flavor or may function to generate an aerosol. For example, the capsule 23 has a structure in which a liquid containing a flavoring agent is enclosed in a coating. The capsule 23 may be, but is not limited to, a spherical or cylindrical shape.

[0245] 12, the aerosol production product 3 further includes a front end plug 33. The front end plug 33 may be located on one side of the tobacco rod 31 facing the filter rod 32. The front end plug 33 can prevent the tobacco rod 31 from detaching to the outside, and also prevents liquefied aerosol from flowing from the tobacco rod 31 into the aerosol generation device 1 during smoking.

[0246] The filter rod 32 includes a first segment 321 and a second segment 322. Here, the first segment 321 corresponds to the first segment of the filter rod 22 of FIG. 11, and the second segment 322 corresponds to the third segment of the filter rod 22 of FIG.

[0247] The diameter and overall length of the aerosol product 3 correspond to those of the aerosol product 2 in Figure 11. For example, but not limited to, the length of the front end 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.

[0248] The aerosol product 3 is wrapped by at least one wrapper 35. The wrapper 35 has at least one hole through which external air can flow in or internal gas can flow out. For example, the front end plug 33 is wrapped by the first wrapper 35a, the tobacco rod 31 is wrapped by the second wrapper 35b, the first segment 321 is wrapped by the third wrapper 35c, and the second segment 322 is wrapped by the fourth wrapper 35d. Then, the entire aerosol product 3 may be repackaged by the fifth wrapper 35e.

[0249] The fifth wrapper 35e may also have at least one perforation 36. For example, but not limited to, the perforation 36 may be formed in the area surrounding the tobacco rod 31. The perforation 36 may serve to transfer heat generated by the heater to the interior of the tobacco rod 31.

[0250] The second segment 322 may also include at least one capsule 34. The capsule 34 may function to generate a flavor or may function to generate an aerosol. For example, the capsule 34 has a structure in which a liquid containing a flavoring agent is enclosed in a coating. The capsule 34 may be, but is not limited to, a spherical or cylindrical shape.

[0251] The first wrapper 35a is formed by combining a metal foil, such as aluminum foil, with a common filter wrapper. For example, the total thickness of the first wrapper 35a is within the range of 45 μm to 55 μm, preferably 50.3 μm. The thickness of the metal foil of the first wrapper 35a is within the range of 6 μm to 7 μm, preferably 6.3 μm. The basis weight of the first wrapper 35a is 50 g / m 2 or 55g / m 2 and preferably within the range of 53 g / m 2 is.

[0252] The second wrapper 35b and the third wrapper 35c may be made of common filter wrapping paper, for example, porous wrapping paper or non-porous wrapping paper.

[0253] For example, the porosity of the second wrapper 35b is 35000 CU, but is not limited to this. The thickness of the second wrapper 35b is within the range of 70 μm to 80 μm, preferably 78 μm. The basis weight of the second wrapper 35b is 20 g / m 2 or 25g / m 2 and preferably 23.5 g / m 2 is.

[0254] For example, the porosity of the third wrapper 35c is 24000 CU, but is not limited to this. The thickness of the third wrapper 35c is within the range of 60 μm to 70 μm, and preferably 68 μm. The basis weight of the third wrapper 35c is 20 g / m 2 or 25g / m 2 and preferably 21 g / m 2 is.

[0255] The fourth wrapper 35d is made of PLA laminated paper. Here, PLA laminated paper means a triple layer of paper including a paper layer, a PLA layer, and another paper layer. For example, the thickness of the fourth wrapper 35d is in the range of 100 μm to 120 μm, and preferably 110 μm. The basis weight of the fourth wrapper 35d is 80 g / m2 or 100g / m 2 and preferably 88 g / m 2 is.

[0256] The fifth wrapper 35e may be made of sterilized paper (MFW). Here, sterilized paper (MFW) refers to paper specially manufactured to have improved tensile strength, water resistance, smoothness, etc. compared to general paper. For example, the basis weight of the fifth wrapper 35e is 57 g / m 2 or 63g / m 2 and preferably within the range of 60 g / m 2 The thickness of the fifth wrapper 35e is in the range of 64 μm to 70 μm, and is preferably 67 μm.

[0257] A predetermined substance may be added to the fifth wrapper 35e. Examples of the predetermined substance include, but are not limited to, silicon. For example, silicon has properties such as heat resistance (i.e., small changes due to temperature), oxidation resistance (i.e., resistance to various chemicals), water repellency, and electrical insulation. However, any substance other than silicon that has the above properties may be applied (or coated) to the fifth wrapper 35e without limitation.

[0258] The front end plug 33 may be made of cellulose acetate. For example, the front end plug 33 is made by adding a plasticizer (e.g., triacetin) to cellulose acetate tow. The mono-denier of the filaments constituting the cellulose acetate tow is within the range of 1.0 to 10.0, preferably within the range of 4.0 to 6.0. More preferably, the mono-denier of the filaments constituting the front end plug 33 is 5.0. The cross section of the filaments constituting the front end plug 33 is also Y-shaped. The total denier of the front end plug 33 is within the range of 20,000 to 30,000, preferably within the range of 25,000 to 30,000. More preferably, the total denier of the front end plug 33 is 28,000.

[0259] If desired, the front end plug 33 may also include at least one channel, the cross-sectional shape of which may be varied.

[0260] The tobacco rod 31 corresponds to the tobacco rod 21 described above with reference to Figure 11. Therefore, a detailed description of the tobacco rod 31 will be omitted below.

[0261] The first segment 321 is made of cellulose acetate. For example, the first segment is a hollow, tubular structure. The first segment 321 is made from cellulose acetate tow with a plasticizer (e.g., triacetin). For example, the monodenier and total denier of the first segment 321 are the same as those of the front end plug 33.

[0262] The second segment 322 is made of cellulose acetate. The mono-denier of the filaments constituting the second segment 322 is within the range of 1.0 to 10.0, preferably within the range of 8.0 to 10.0. More preferably, the mono-denier of the filaments of the second segment 322 is 9.0. The cross section of the filaments of the second segment 322 is Y-shaped. The total denier of the second segment 322 is within the range of 20,000 to 30,000, preferably 25,000.

[0263] FIG. 13 is a block diagram of an aerosol generating device according to another embodiment.

[0264] The aerosol generation 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. However, the internal structure of the aerosol generation device 1 is not limited to that shown in Fig. 12. That is, a person skilled in the art would understand that, depending on the design of the aerosol generation device 1, some of the components shown in Fig. 12 may be omitted or new components may be added.

[0265] The sensing unit 2000 senses the state of the aerosol generation device 1 or the state around the aerosol generation device 1, and transmits the sensed information to the control unit 1000. Based on the sensed information, the control unit 1000 controls the aerosol generation device 1 to perform various functions such as controlling the operation of the heater 5000, restricting smoking, determining whether or not to insert an aerosol product (e.g., cigarette, cartridge, etc.), and displaying notifications.

[0266] The sensing unit 2000 includes at least one of a temperature sensor 2100, an insertion sensor 2200, and a puff sensor 2300, but is not limited thereto.

[0267] The temperature sensor 2100 senses the temperature to which the heater 5000 (or the aerosol-generating substance) is heated. The aerosol-generating device 1 may include a separate temperature sensor that senses the temperature of the heater 5000, or the heater 5000 itself may function as a temperature sensor. Alternatively, the temperature sensor 2100 may be disposed around the battery 4000 so as to monitor the temperature of the battery 4000.

[0268] The insertion detection sensor 2200 detects the insertion and / or removal of an aerosol product. 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, and detects a change in signal due to the insertion and / or removal of an aerosol product.

[0269] The puff sensor 2300 detects a user's puff based on various physical changes in the airflow passage or channel, such as a temperature change, a flow rate change, a voltage change, or a pressure change.

[0270] The sensing unit 2000 further includes at least one of a temperature / humidity sensor, an air pressure sensor, a geomagnetic sensor, an acceleration sensor, a gyroscope sensor, a position sensor (e.g., GPS), a proximity sensor, and an RGB (illuminance) sensor in addition to the above-described sensors 2100 to 2300. The function of each sensor can be intuitively inferred by a skilled artisan from its name, and therefore a detailed description thereof will be omitted.

[0271] The output unit 3000 outputs and provides to a user information about the status of the aerosol generating device 1. The output unit 3000 includes, but is not limited to, at least one of a display unit 3100, a haptic unit 3200, and an audio output unit 3300. When the display unit 3100 and a touchpad are layered to form a touch screen, the display unit 3100 can be used as an input device in addition to an output device.

[0272] The display unit 3100 visually provides a user with information about the aerosol generation device 1. For example, the information about the aerosol generation device 1 refers to various information such as the charge / discharge status of the battery 4000 of the aerosol generation device 1, the preheating status of the heater 5000, the insertion / removal status of an aerosol product, or a status that restricts the use of the aerosol generation device 1 (e.g., detection of an abnormal item), and the display unit 3100 outputs the information to the outside. The display unit 3100 is, for example, a liquid crystal display panel (LCD), an organic light emitting display panel (OLED), etc. The display unit 3100 may also be in the form of an LED light emitting element.

[0273] The haptic unit 3200 converts an electrical signal into a mechanical or electrical stimulus to tactilely provide the user with information about the aerosol generation device 1. For example, the haptic unit 3200 includes a motor, a piezoelectric element, or an electrical stimulation device.

[0274] The acoustic output unit 3300 audibly provides the user with information about the aerosol generation device 1. For example, the acoustic output unit 3300 converts an electric signal into an acoustic signal and outputs it to the outside.

[0275] The battery 4000 supplies power used to operate the aerosol generation device 1. The battery 4000 supplies power to heat the heater 5000. The battery 4000 also supplies power necessary for the operation of other components provided within the aerosol generation device 1 (e.g., the sensing unit 2000, the output unit 3000, the user input unit 6000, the memory 7000, and the communication unit 8000). The battery 4000 is a rechargeable battery or a disposable battery. For example, the battery 4000 is a lithium polymer (LiPoly) battery, but is not limited thereto.

[0276] The heater 5000 receives power from the battery 4000 and heats the aerosol-generating material. Although not shown in Fig. 13, the aerosol generation device 1 may further include a power conversion circuit (e.g., a DC / DC converter) that converts the power of the battery 4000 and supplies it to the heater 5000. Furthermore, when the aerosol generation device 1 generates aerosol by an induction heating method, the aerosol generation device 1 may further include a DC / AC converter that converts the DC power supply of the battery 4000 into AC power supply.

[0277] 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 perform their functions by receiving power from the battery 4000. Although not shown in FIG. 13 , the device may further include a power conversion circuit, such as an LDO (low dropout) circuit or a voltage regulator circuit, that converts the power of the battery 4000 and supplies it to each component.

[0278] In one embodiment, the heater 5000 may be formed of any suitable electrically resistive material. For example, suitable electrically resistive materials include, but are not limited to, metals or metal alloys including titanium, zirconium, tantalum, platinum, nickel, cobalt, chromium, hafnium, niobium, molybdenum, tungsten, tin, gallium, manganese, iron, copper, stainless steel, nichrome, etc. Additionally, the heater 5000 may be embodied as, but is not limited to, a metal hot wire, a metal hot plate having conductive tracks disposed thereon, a ceramic heating element, etc.

[0279] In another embodiment, heater 5000 is an induction heater, for example, heater 5000 includes a susceptor that generates heat through a magnetic field applied by a coil to heat the aerosol-generating material.

[0280] The user input unit 6000 receives information input by a user or outputs information to a user. For example, the user input unit 6000 may be, but is not limited to, a keypad, a dome switch, a touchpad (such as a contact-type capacitance type, a pressure-type resistive film type, an infrared sensing type, a surface ultrasonic conduction type, an integral tension measurement type, or a piezoelectric effect type), a jog wheel, or a jog switch. Although not shown in FIG. 12 , the aerosol generating device 1 may further include a connection interface such as a USB (universal serial bus) interface, through which the aerosol generating device 1 can connect to other external devices to send and receive information or charge the battery 4000.

[0281] The memory 7000 is hardware that stores various data processed within the aerosol generation device 1, and stores data that has been processed by the control unit 1000 and data to be processed by the control unit 1000. The memory 7000 includes at least one type of recording medium selected from the group consisting of flash memory type, hard disk type, multimedia card micro type, card-type memory (e.g., SD or XD memory), random access memory (RAM), static random access memory (SRAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), programmable read-only memory (PROM), magnetic memory, magnetic disk, and optical disk. The memory 7000 stores the operating time of the aerosol generation device 1, the maximum number of puffs, the current number of puffs, at least one temperature profile, and data regarding the user's smoking pattern.

[0282] The communication unit 8000 includes at least one component for communication with other electronic devices. For example, the communication unit 8000 includes a short-range communication unit 8100 and a wireless communication unit 8200.

[0283] The short-range communication unit 8100 includes, but is not limited to, a Bluetooth (registered trademark) communication unit, a BLE (Bluetooth (registered trademark) Low Energy) communication unit, a short-range wireless communication unit, a WLAN (Wi-Fi) communication unit, a ZigBee communication unit, an infrared (IrDA, infrared Data Association) communication unit, a WFD (Wi-Fi Direct) communication unit, a UWB (ultra wideband) communication unit, an Ant+ communication unit, etc.

[0284] The wireless communication unit 8200 includes, but is not limited to, a cellular network communication unit, an Internet communication unit, a computer network (e.g., LAN or WAN) communication unit, etc. The wireless communication unit 8200 can identify and authenticate the aerosol generation device 1 within the communication network using subscriber information (e.g., an International Mobile Subscriber Identity (IMSI)).

[0285] The control unit 1000 controls the overall operation of the aerosol generating device 1. In one embodiment, the control unit 1000 includes at least one processor. The processor may be implemented as an array of multiple logic gates, or may be implemented as a combination of a general-purpose microprocessor and a memory storing a program executed by the microprocessor. Those skilled in the art will understand that the processor may also be implemented as other types of hardware.

[0286] The control unit 1000 controls 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 can control the power supply by controlling the switching of a switching element between the battery 4000 and the heater 5000. In another example, a heating direct circuit may control the power supply to the heater 5000 in response to a control command from the control unit 1000.

[0287] The control unit 1000 analyzes the results sensed by the sensing unit 2000 and controls subsequent processes. For example, the control unit 1000 controls the power supplied to the heater 5000 so that the operation of the heater 5000 starts or ends based on the results sensed by the sensing unit 2000. As another example, the control unit 1000 controls the amount of power supplied to the heater 5000 and the time for which the power is supplied so that the heater 5000 can be heated to a predetermined temperature or maintain an appropriate temperature based on the results sensed by the sensing unit 2000.

[0288] The control unit 1000 controls the output unit 3000 based on the result sensed by the sensing unit 2000. For example, when the number of puffs counted by the puff sensor 2300 reaches a predetermined number, the control unit 1000 can notify the user through at least one of the display unit 3100, the haptic unit 3200, and the audio output unit 3300 that the aerosol generating device 1 will soon end.

[0289] An embodiment may also be embodied in the form of a recording medium containing computer-executable instructions, such as a program module executed by a computer. Computer-readable media are any available media accessible by a computer, including both volatile and nonvolatile media, and detachable and non-detachable media. Computer-readable media also include both computer recording media and communication media. Computer recording media include both volatile and non-volatile, detachable and non-detachable media embodied in any method or technology for storing information, such as computer-readable instructions, data structures, program modules, or other data. Communication media typically include computer-readable instructions, data structures, program modules, or other data in a modulated data signal, or other transmission mechanism, and include any information delivery media.

[0290] The above description of the embodiments is merely illustrative, and those skilled in the art will understand that various modifications and equivalent embodiments are possible. Therefore, the true scope of protection of the invention should be determined by the appended claims, and all differences within the scope of the claims should be construed as being included in the scope of protection defined by the claims.

[0291] Those skilled in the art will understand that the present invention may be embodied in various modified forms without departing from the essential characteristics of the above description. Therefore, the disclosed method should be considered in an illustrative rather than a restrictive sense. The scope of the present invention is indicated by the claims, not the foregoing description, and all differences within the scope of the claims should be construed as being within the scope of the present invention.

Claims

1. a body including a storage space for storing an aerosol-producing article; a coil for applying a magnetic field to a susceptor disposed in the receiving space to generate heat in order to heat the aerosol product; an airflow passage cover located outside the body and having an airflow passage formed therein through which air passes; a pressure sensor disposed in the airflow passage cover for detecting a change in pressure inside the airflow passage; a moisture detection sensor disposed on a support unit that supports the coil and that detects moisture in the aerosol product contained in the storage space.

2. 2. The heater assembly for an aerosol generating device as described in claim 1, further comprising an item detection sensor arranged in the air flow passage cover at a position spaced apart from the pressure sensor and detecting the type of the aerosol product contained in the storage space.

3. The heater assembly for an aerosol generating device according to claim 2 , wherein the airflow passage cover includes a sensor housing portion that houses at least one of the pressure sensor and the article detection sensor.

4. 3. The heater assembly for an aerosol generating device according to claim 2, wherein the pressure sensor and the article detection sensor are both mounted on a single mounting member disposed on the airflow passage cover.

5. The heater assembly for an aerosol generating device according to claim 1 , further comprising a sensor protection cover coupled to the airflow passage cover so as to cover at least a portion of the pressure sensor.

6. The airflow passage cover is formed with an air inlet through which air flows in, 2. The heater assembly for an aerosol generating device according to claim 1, wherein the air inlet is spaced apart from a portion of the aerosol product into which the aerosol product is inserted.

7. The air flow passage communicates with the accommodation space, 2. The heater assembly for an aerosol generating device according to claim 1, wherein at least a portion of the air moving through the air flow passage passes through the aerosol product contained in the containing space and is discharged to the outside.

8. 2. The heater assembly for an aerosol generating device according to claim 1, wherein the moisture sensor is located on a segment of the aerosol product containing an aerosol generating substance.

9. The heater assembly for an aerosol generating device according to claim 1 , wherein at least a portion of the moisture sensitive sensor includes a curved surface.

10. further comprising a sensor bracket disposed outside the support unit; The heater assembly for an aerosol generating device according to claim 1 , wherein the moisture sensor is coupled to the sensor bracket and then to the support unit.

11. 2. The heater assembly for an aerosol generating device according to claim 1, further comprising a first cover coupled to the body and including an article insert into which the aerosol producing article is inserted.

12. 12. The heater assembly for an aerosol generating device according to claim 11, wherein the first cover includes a cover insulating member extending along the extension direction of the coil and disposed between the coil and the body.

13. a temperature sensing unit disposed inside the body and configured to sense a temperature of the coil; The heater assembly for an aerosol generating device according to claim 11 , wherein the first cover further includes an avoidance groove into which the temperature sensing unit is inserted.

14. The heater assembly for an aerosol generating device as described in claim 11, further comprising a holder coupled to the first cover, the holder having an insertion hole communicating with the article insertion portion so that the aerosol product can be freely accommodated in the storage space, and a ridge protruding toward the insertion hole to support the aerosol product.

15. A heater assembly for an aerosol generating device according to any one of claims 1 to 14; a battery for providing power to a heater assembly for the aerosol generating device; a control unit that controls the operation of the heater assembly for the aerosol generating device.

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