KR20230120068A - Aerosol generating device comprising magnetic sensor - Google Patents

Abstract

The present invention relates to an aerosol-generating device comprising: a heating housing which houses an aerosol-generating article; a first coil disposed in the heating housing and generating a magnetic field; and a first magnetic sensor detecting a change in the magnetic field generated by the first coil. By sensing the magnetic field, a profile can be set to change the current and/or voltage.

Description

Aerosol generating device including a magnetic sensor {AEROSOL GENERATING DEVICE COMPRISING MAGNETIC SENSOR}

The present disclosure relates to an aerosol-generating device, for example, to an aerosol-generating device comprising a magnetic sensor.

In order to realize atomization performance, technology is being developed to introduce an airflow into an aerosol-generating article. For example, aerosol-generating devices of the type that generate an aerosol from an aerosol-generating article in a non-combustion manner have been developed.

Various embodiments may provide an aerosol-generating device that includes a magnetic sensor configured to sense magnetic field properties.

An aerosol-generating device according to an embodiment includes a heating housing configured to receive an aerosol-generating article, a first coil disposed in the heating housing and configured to generate a magnetic field, and detecting a change in the magnetic field generated by the first coil. It may include a first magnetic sensor configured to.

In one embodiment, a first magnetic sensor may be disposed adjacent to the first coil.

In one embodiment, the first coil and the first magnetic sensor may be arranged to overlap at least partially in one direction of the heating housing.

In one embodiment, the first coil may have an axis in the longitudinal direction of the heating housing.

In one embodiment, the aerosol generating device may further include a shield that at least partially surrounds the first magnetic sensor.

In one embodiment, the aerosol generating device may include a second coil disposed in a region different from the region in which the first coil is disposed in the heating housing and configured to generate a magnetic field, and a change in the magnetic field generated by the second coil. It may further include a second magnetic sensor configured to sense .

In one embodiment, the second magnetic sensor may be disposed opposite to the second coil based on the heating housing.

In one embodiment, the second coil and the second magnetic sensor may be arranged to overlap at least partially in one direction of the heating housing.

In one embodiment, the second coil may have an axis in a direction normal to the side surface of the heating housing.

In one embodiment, the aerosol generating device may further include a shield that at least partially surrounds the second magnetic sensor.

An aerosol-generating system according to an embodiment includes an aerosol-generating article comprising a susceptor, a housing configured to receive the aerosol-generating article, a first disposed in the housing and configured to couple with the susceptor and generate a magnetic field. and an aerosol-generating device including a coil and a first magnetic sensor configured to detect a change in a magnetic field generated by the first coil.

In one embodiment, the first magnetic sensor may be disposed adjacent to the first coil.

In one embodiment, the aerosol-generating device includes a second coil disposed in a region of the heating housing different from the region in which the first coil is disposed and configured to couple with the susceptor and generate a magnetic field; and the second coil. It may further include a second magnetic sensor configured to detect a change in the magnetic field generated by the coil.

In one embodiment, the second magnetic sensor may be disposed opposite to the second coil based on the heating housing.

In one embodiment, the first coil and the first magnetic sensor are arranged to at least partially overlap in one direction of the heating housing, and the second coil and the second magnetic sensor are disposed to at least partially overlap in the direction of the heating housing. They may be arranged to partially overlap.

According to various embodiments, a profile for changing current and/or voltage may be set by sensing a magnetic field.

According to various embodiments, a puff may be detected or puff detection may be displayed according to a change in the magnetic field.

Effects of the aerosol generating device according to various embodiments are not limited to those mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description below.

1 to 3 are views illustrating examples in which an aerosol-generating article (eg, cigarette) is inserted into an aerosol-generating device according to various embodiments.
4 and 5 are diagrams illustrating examples of aerosol-generating articles (eg, cigarettes) according to various embodiments.
6 is a block diagram of an aerosol generating device according to various embodiments.
7 is a perspective view of a portion of an aerosol-generating device according to an embodiment.
8 is a side view of a portion of an aerosol-generating device according to one embodiment.
9 is a cross-sectional view of a portion of an aerosol-generating device according to one embodiment.
10 is a cross-sectional view of a portion of an aerosol-generating system according to one embodiment.

The terms used in the embodiments have been selected from general terms that are currently widely used as much as possible while considering the functions in the present invention, but they may vary according to the intention of a person skilled in the art or precedent, the emergence of new technologies, and the like. In addition, in a specific case, there is also a term arbitrarily selected by the applicant, and in this case, the meaning will be described in detail in the description of the invention. Therefore, the term used in the present invention should be defined based on the meaning of the term and the overall content of the present invention, not simply the name of the term.

When it is said that a certain part "includes" a certain component throughout the specification, it means that it may further include other components without excluding other components unless otherwise stated. In addition, terms such as "...unit" and "...module" described in the specification mean a unit that processes at least one function or operation, which is implemented as hardware or software or a combination of hardware and software. It can be.

Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those skilled in the art can easily carry out the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein.

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

1 to 3 are views illustrating examples in which a cigarette is inserted into an aerosol generating device.

Referring to FIG. 1 , the aerosol generating device 1 includes a battery 11, a controller 12 and a heater 13. Referring to FIGS. 2 and 3 , the aerosol-generating device 1 further includes a vaporizer 14 . In addition, a cigarette 2 may be inserted into the inner space of the aerosol generating device 1 .

In the aerosol generating device 1 shown in FIGS. 1 to 3, components related to the present embodiment are shown. Therefore, those of ordinary skill in the art related to this embodiment can understand that other general-purpose components other than those shown in FIGS. 1 to 3 may be further included in the aerosol generating device 1. .

In addition, although FIGS. 2 and 3 show that the aerosol generating device 1 includes the heater 13, the heater 13 may be omitted if necessary.

1 shows a battery 11, a controller 12, and a heater 13 arranged in a line. In addition, FIG. 2 shows that the battery 11, the control unit 12, the vaporizer 14 and the heater 13 are arranged in a line. Also, in FIG. 3, the vaporizer 14 and the heater 13 are shown arranged in parallel. However, the internal structure of the aerosol generating device 1 is not limited to that shown in FIGS. 1 to 3 . In other words, depending on the design of the aerosol generating device 1, the arrangement of the battery 11, the control unit 12, the heater 13 and the vaporizer 14 can be changed.

When the cigarette 2 is inserted into the aerosol-generating device 1, the aerosol-generating device 1 can operate the heater 13 and/or the vaporizer 14 to generate an aerosol. The aerosol generated by the heater 13 and/or the vaporizer 14 passes through the cigarette 2 and is delivered to the user.

If necessary, the aerosol generating device 1 can heat the heater 13 even when the cigarette 2 is not inserted into the aerosol generating device 1 .

The battery 11 supplies power used for the operation of the aerosol generating device 1 . For example, the battery 11 may supply power so that the heater 13 or the vaporizer 14 may be heated, and may supply power necessary for the control unit 12 to operate. In addition, the battery 11 may supply power necessary for the display, sensor, motor, etc. installed in the aerosol generating device 1 to operate.

The controller 12 controls the overall operation of the aerosol-generating device 1. Specifically, the controller 12 controls the operation of the battery 11, the heater 13, and the vaporizer 14 as well as other components included in the aerosol generating device 1. In addition, the controller 12 may determine whether or not the aerosol generating device 1 is in an operable state by checking the state of each component of the aerosol generating device 1 .

The controller 12 includes at least one processor. The processor may be implemented as an array of a plurality of logic gates, or may be implemented as a combination of a general-purpose microprocessor and a memory in which programs executable by the microprocessor are stored. In addition, those having ordinary knowledge in the art to which this embodiment pertains can understand that it may be implemented in other types of hardware.

The heater 13 may be heated by power supplied from the battery 11 . For example, if a cigarette is inserted into the aerosol-generating device 1, the heater 13 may be located outside the cigarette. Thus, the heated heater 13 may increase the temperature of the aerosol generating material in the cigarette.

The heater 13 may be an electrical resistive heater. For example, the heater 13 may include an electrically conductive track, and the heater 13 may be heated as current flows through the electrically conductive track. However, the heater 13 is not limited to the above example, and may be applied without limitation as long as it can be heated to a desired temperature. Here, the desired temperature may be previously set in the aerosol generating device 1 or may be set to a desired temperature by the user.

Meanwhile, as another example, the heater 13 may be an induction heating type heater. Specifically, the heater 13 may include an electrically conductive coil for heating the cigarette by an induction heating method, and the cigarette may include a susceptor capable of being heated by the induction heating type heater.

For example, the heater 13 may include a tubular heating element, a plate heating element, a needle heating element, or a rod-shaped heating element, and depending on the shape of the heating element, the inside or outside of the cigarette 2 is heated. can be heated

In addition, a plurality of heaters 13 may be disposed in the aerosol generating device 1 . At this time, the plurality of heaters 13 may be disposed to be inserted into the cigarette 2 or disposed outside the cigarette 2 . In addition, some of the plurality of heaters 13 may be disposed to be inserted into the cigarette 2, and others may be disposed outside the cigarette 2. In addition, the shape of the heater 13 is not limited to the shape shown in FIGS. 1 to 3 and may be manufactured in various shapes.

The vaporizer 14 may generate an aerosol by heating the liquid composition, and the generated aerosol may pass through the cigarette 2 and be delivered to the user. In other words, the aerosol generated by the vaporizer 14 can move along the air flow path of the aerosol generating device 1, and the air flow path allows the aerosol generated by the vaporizer 14 to pass through the cigarette and deliver to the user. It can be configured to be.

For example, vaporizer 14 may include, but is not limited to, a liquid reservoir, a liquid delivery means, and a heating element. For example, the liquid reservoir, liquid delivery means and heating element may be included in the aerosol-generating device 1 as independent modules.

The liquid reservoir may store a liquid composition. For example, the liquid composition may be a liquid containing a tobacco-containing material including a volatile tobacco flavor component, or may be a liquid containing a non-tobacco material. The liquid storage unit may be manufactured to be detachable from/attached to/from the vaporizer 14, or may be manufactured integrally with the vaporizer 14.

For example, liquid compositions may include water, solvents, ethanol, plant extracts, fragrances, flavors, or vitamin mixtures. Fragrance may include menthol, peppermint, spearmint oil, various fruit flavor components, etc., but is not limited thereto. Flavoring agents can include ingredients that can provide a variety of flavors or flavors to the user. The vitamin mixture may be a mixture of at least one of vitamin A, vitamin B, vitamin C, and vitamin E, but is not limited thereto. Liquid compositions may also contain aerosol formers such as glycerin and propylene glycol.

The liquid delivery means may deliver the liquid composition of the liquid reservoir to the heating element. For example, the liquid delivery means may be a wick such as cotton fiber, ceramic fiber, glass fiber, or porous ceramic, but is not limited thereto.

The heating element is an element for heating the liquid composition delivered by the liquid delivery means. For example, the heating element may be a metal heating wire, a metal heating plate, or a ceramic heater, but is not limited thereto. In addition, the heating element may be composed of a conductive filament such as nichrome wire, and may be disposed in a structure wound around the liquid delivery means. The heating element may be heated by supplying current, and may transfer heat to the liquid composition in contact with the heating element to heat the liquid composition. As a result, an aerosol may be generated.

For example, the vaporizer 14 may be referred to as a cartomizer or an atomizer, but is not limited thereto.

Meanwhile, the aerosol generating device 1 may further include general-purpose components other than the battery 11, the controller 12, the heater 13, and the vaporizer 14. For example, the aerosol-generating device 1 may include a display capable of outputting visual information and/or a motor for outputting tactile information. In addition, the aerosol generating device 1 may include at least one sensor (a puff detection sensor, a temperature detection sensor, a cigarette insertion detection sensor, etc.). In addition, the aerosol generating device 1 may be manufactured in a structure in which external air may flow in or internal gas may flow out even when the cigarette 2 is inserted.

Although not shown in FIGS. 1 to 3, the aerosol generating device 1 may constitute a system together with a separate cradle. For example, the cradle can be used for charging the battery 11 of the aerosol-generating device 1 . Alternatively, the heater 13 may be heated in a state in which the cradle and the aerosol generating device 1 are coupled.

Cigarette 2 may be similar to a conventional combustion cigarette. For example, the cigarette 2 may be divided into a first part containing an aerosol generating material and a second part including a filter or the like. Alternatively, the second part of the cigarette 2 may also contain an aerosol generating substance. An aerosol generating material, eg in the form of granules or capsules, may be inserted into the second part.

The entirety of the first part may be inserted into the aerosol generating device 1, and the second part may be exposed to the outside. Alternatively, only a part of the first part may be inserted into the aerosol-generating device 1, or the whole of the first part and a part of the second part may be inserted. The user may inhale the aerosol while opening the second part. At this time, the aerosol is generated by passing the external air through the first part, and the generated aerosol passes through the second part and is delivered to the user's mouth.

As an example, outside air may be introduced through at least one air passage formed in the aerosol generating device 1 . For example, the opening and closing of the air passage formed in the aerosol generating device 1 and/or the size of the air passage may be adjusted by the user. Accordingly, the amount of smoke and the feeling of smoking can be adjusted by the user. As another example, outside air may be introduced into the cigarette 2 through at least one hole formed on the surface of the cigarette 2 .

Hereinafter, examples of the cigarette 2 will be described with reference to FIGS. 4 and 5 .

4 and 5 are diagrams showing examples of cigarettes.

Referring to FIG. 4 , the cigarette 2 includes a tobacco rod 21 and a filter rod 22 . The first portion 21 described above with reference to FIGS. 1 to 3 includes a tobacco rod 21 , and the second portion 22 includes a filter rod 22 .

Although filter rod 22 is shown as a single segment in FIG. 4, it is not limited thereto. In other words, the filter rod 22 may be composed of a plurality of segments. For example, filter rod 22 may include a segment that cools the aerosol and a segment that filters certain components contained within the aerosol. Also, if necessary, the filter rod 22 may further include at least one segment performing other functions.

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

Cigarette 2 may be wrapped by at least one wrapper 24 . At least one hole through which external air is introduced or internal gas is discharged may be formed in the wrapper 24 . As an example, the cigarette 2 may be wrapped by one wrapper 24 . As another example, the cigarette 2 may be overlappingly wrapped by two or more wrappers 24 . For example, the tobacco rod 21 may be wrapped by the first wrapper 241, and the filter rod 22 may be wrapped by the wrappers 242, 243, and 244. In addition, the entire cigarette 2 may be repackaged by a single wrapper 245 . If the filter rod 22 is composed of a plurality of segments, each segment may be wrapped by wrappers 242 , 243 , and 244 .

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

The third wrapper 243 may be made of hard paper. For example, the basis weight of the third wrapper 243 may be in the range of 88 g/m ² to 96 g/m ² , preferably in the range of 90 g/m ² to 94 g/m ² . there is. In addition, the thickness of the third wrapper 243 may be included in the range of 120 μm to 130 μm, and preferably may be 125 μm.

The fourth wrapper 244 may be made of oil-resistant hard paper. For example, the basis weight of the fourth wrapper 244 may be in the range of 88 g/m ² to 96 g/m ² , preferably in the range of 90 g/m ² to 94 g/m ² . there is. In addition, the thickness of the fourth wrapper 244 may be included in the range of 120 μm to 130 μm, and preferably may be 125 μm.

The fifth wrapper 245 may be made of sterile paper (MFW). Here, the sterile paper (MFW) refers to paper specially manufactured to improve tensile strength, water resistance, smoothness, and the like compared to general paper. For example, the basis weight of the fifth wrapper 245 may be in the range of 57 g/m ² to 63 g/m ² , and may be preferably 60 g/m ² . In addition, the thickness of the fifth wrapper 245 may be included in the range of 64 μm to 70 μm, and preferably may be 67 μm.

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

The fifth wrapper 245 can prevent the cigarette 2 from burning. For example, if the tobacco rod 210 is heated by the heater 13, there is a possibility that the cigarette 2 will burn. Specifically, when the temperature rises above the ignition point of any one of the materials included in the tobacco rod 310, the cigarette 2 may be combusted. Even in this case, since the fifth wrapper 245 includes an incombustible material, burning of the cigarette 2 can be prevented.

In addition, the fifth wrapper 245 can prevent the holder 1 from being contaminated by substances produced in the cigarette 2 . Liquid substances may be created in the cigarette 2 by the user's puff. For example, as the aerosol generated in the cigarette 2 is cooled by the outside air, liquid substances (eg, moisture, etc.) may be generated. As the fifth wrapper 245 wraps the cigarette 2 , liquid substances generated in the cigarette 2 may be prevented from leaking out of the cigarette 2 .

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

Tobacco rod 21 can be manufactured in various ways. For example, the tobacco rod 21 may be made of a sheet or may be made of a strand. In addition, the tobacco rod 21 may be made of a cut filler in which a tobacco sheet is chopped. Also, the tobacco rod 21 may be surrounded by a heat conducting material. For example, the thermal conduction material may be a metal foil such as aluminum foil, but is not limited thereto. For example, the heat conduction material surrounding the tobacco rod 21 can improve the thermal conductivity applied to the tobacco rod by evenly distributing the heat transmitted to the tobacco rod 21, thereby improving the taste of the tobacco. . In addition, the heat conduction material surrounding the tobacco rod 21 may function as a susceptor heated by an induction heating type heater. At this time, although not shown in the drawing, the tobacco rod 21 may further include an additional susceptor in addition to the heat conducting material surrounding the outside.

Filter rod 22 may be a cellulose acetate filter. On the other hand, 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 having a hollow inside. Also, the filter rod 22 may be a recess type rod. If the filter rod 22 is composed of a plurality of segments, at least one of the plurality of segments may be manufactured in a different shape.

The first segment of filter rod 22 may be a cellulose acetate filter. For example, the first segment may be a tubular structure including a hollow therein. When the heater 13 is inserted by the first segment, the internal material of the tobacco rod 210 may be prevented from being pushed back, and an aerosol cooling effect may also be generated. An appropriate diameter of the hollow included in the first segment may be employed within a range of 2 mm to 4.5 mm, but is not limited thereto.

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

The hardness of the first segment may be adjusted by adjusting the content of the plasticizer during manufacture of the first segment. In addition, the first segment may be manufactured by inserting a structure such as a film or a tube made of the same or different material into the inside (eg, hollow).

The second segment of the filter rod 22 cools the aerosol produced by the heater 13 heating the tobacco rod 21 . Thus, the user can inhale the aerosol cooled to an appropriate temperature.

The length or diameter of the second segment may be variously determined according to the shape of the cigarette 2 . For example, the length of the second segment may be appropriately employed within a range of 7 mm to 20 mm. Preferably, the length of the second segment may be about 14 mm, but is not limited thereto.

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

For example, the polymer is 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. material can be made.

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

For example, the second segment of a crimped polymer sheet may be formed from a material having a thickness between about 5 μm and about 300 μm, such as between about 10 μm and about 250 μm. Also, the total surface area of the second segment may be between about 300 mm ² /mm and about 1000 mm ² /mm. Additionally, the aerosol-cooling element may be formed from a material having a specific surface area between about 10 mm ² /mg and about 100 mm ² /mg.

Meanwhile, the second segment may include a thread containing a volatile flavor component. Here, the volatile flavor component may be menthol, but is not limited thereto. For example, the thread may be loaded with sufficient menthol to provide at least 1.5 mg of menthol to the second segment.

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

In the process of making the third segment, flavoring liquid may be sprayed on the third segment to generate flavor. Alternatively, a separate fiber coated with 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 the flavoring element is added to the third segment, the effect of enhancing the persistence of the flavor delivered to the user may occur.

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

Referring to FIG. 5 , the cigarette 3 may further include a shear plug 33 . The shear plug 33 may be located on one side opposite to the filter rod 32 in the tobacco rod 31 . The shear plug 33 can prevent the tobacco rod 31 from escaping to the outside, and prevent the aerosol liquefied from the tobacco rod 31 from flowing into the aerosol generating device (FIGS. 1 to 3) during smoking. can

The filter rod 32 may include a first segment 321 and a second segment 322 . Here, the first segment 321 may correspond to the first segment of the filter rod 22 of FIG. 4, and the second segment 322 may correspond to the third segment of the filter rod 22 of FIG. can

The diameter and total length of the cigarette 3 may correspond to the diameter and total length of the cigarette 2 of FIG. 4 . For example, the length of the shear plug 33 is about 7 mm, the length of the tobacco rod 31 is about 15 mm, the length of the first segment 321 is about 12 mm, and the length of the second segment 322 is about 15 mm. It may be about 14 mm, but is not limited thereto.

The cigarette 3 may be wrapped by at least one wrapper 35 . At least one hole through which external air is introduced or internal gas is discharged may be formed in the wrapper 35 . For example, the shear plug 33 is wrapped by the first wrapper 351, the tobacco rod 31 is wrapped by the second wrapper 352, and the first segment by the third wrapper 353 ( 321) may be wrapped, and the second segment 322 may be wrapped by the fourth wrapper 354. In addition, the entire cigarette 3 may be repackaged by the fifth wrapper 355 .

In addition, at least one perforation 36 may be formed in the fifth wrapper 355 . For example, the perforation 36 may be formed in an area surrounding the tobacco rod 31, but is not limited thereto. Perforations 36 may serve to transfer heat generated by the heater 13 shown in FIGS. 2 and 3 to the inside of the tobacco rod 31.

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

The first wrapper 351 may be a metal foil such as aluminum foil coupled to a general filter wrapper. For example, the total thickness of the first wrapper 351 may be included in the range of 45 μm to 55 μm, and preferably may be 50.3 μm. In addition, the thickness of the metal foil of the first wrapper 351 may be included in the range of 6 μm to 7 μm, and preferably may be 6.3 μm. In addition, the basis weight of the first wrapper 351 may be within the range of 50 g/m ² to 55 g/m ² , and may be preferably 53 g/m ² .

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

For example, the porosity of the second wrapper 352 may be 35000 CU, but is not limited thereto. In addition, the thickness of the second wrapper 352 may be included in the range of 70 μm to 80 μm, and preferably may be 78 μm. In addition, the basis weight of the second wrapper 352 may be within the range of 20 g/m ² to 25 g/m ² , and may be preferably 23.5 g/m ² .

For example, the porosity of the third wrapper 353 may be 24000 CU, but is not limited thereto. In addition, the thickness of the third wrapper 353 may be included in the range of 60 μm to 70 μm, and preferably may be 68 μm. In addition, the basis weight of the third wrapper 353 may be within the range of 20 g/m ² to 25 g/m ² , and may be preferably 21 g/m ² .

The fourth wrapper 354 may be made of PLA laminate. Here, the PLA laminate means a paper layer, a PLA layer, and three layers of paper including a paper layer. For example, the thickness of the fourth wrapper 354 may be in the range of 100 μm to 120 μm, and preferably may be 110 μm. In addition, the basis weight of the fourth wrapper 354 may be in the range of 80 g/m ² to 100 g/m ² , and preferably may be 88 g/m ² .

The fifth wrapper 355 may be made of sterile paper (MFW). Here, the sterile paper (MFW) refers to paper specially manufactured to improve tensile strength, water resistance, smoothness, etc. compared to general paper. For example, the basis weight of the fifth wrapper 355 may be within the range of 57 g/m ² to 63 g/m ² , and may be preferably 60 g/m ² . In addition, the thickness of the fifth wrapper 355 may be included in the range of 64 μm to 70 μm, and preferably may be 67 μm.

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

The shear plug 33 may be made of cellulose acetate. As an example, the shear plug 33 may be made by adding a plasticizer (eg, triacetin) to cellulose acetate tow. The mono denier of the filament constituting the cellulose acetate tow may be included in the range of 1.0 to 10.0, preferably included in the range of 4.0 to 6.0. More preferably, the mono denier of the filament of the shear plug 33 may be 5.0. In addition, the cross section of the filaments constituting the front end plug 33 may be Y-shaped. The total denier of the shear plug 33 may be included in the range of 20000 to 30000, preferably included in the range of 25000 to 30000. More preferably, the total denier of the shear plug 33 may be 28000.

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

The tobacco rod 31 may correspond to the tobacco rod 21 described above with reference to FIG. 4 . Therefore, a detailed description of the tobacco rod 31 will be omitted below.

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

The second segment 322 may be made of cellulose acetate. The mono denier of the filaments constituting the second segment 322 may be included in the range of 1.0 to 10.0, preferably included in the range of 8.0 to 10.0. More preferably, the mono denier of the filament of the second segment 322 may be 9.0. In addition, the cross section of the filament of the second segment 322 may be Y-shaped. The total denier of the second segment 322 may be included in the range of 20000 to 30000, preferably 25000.

6 is a block diagram of an aerosol generating device 400 according to another embodiment.

The aerosol generating device 400 includes a control unit 410, a sensing unit 420, an output unit 430, a battery 440, a heater 450, a user input unit 460, a memory 470, and a communication unit 480. can include However, the internal structure of the aerosol generating device 400 is not limited to that shown in FIG. 6 . That is, those skilled in the art can understand that some of the components shown in FIG. 6 may be omitted or new components may be further added according to the design of the aerosol generating device 400. there is.

The sensing unit 420 may detect a state of the aerosol generating device 400 or a state around the aerosol generating device 400 and transmit the detected information to the controller 410 . Based on the detected information, the control unit 410 performs various functions such as controlling the operation of the heater 450, restricting smoking, determining whether an aerosol-generating article (eg, cigarette, cartridge, etc.) is inserted, displaying a notification, etc. The aerosol generating device 400 may be controlled.

The sensing unit 420 may include at least one of a temperature sensor 422, an insertion detection sensor 424, and a puff sensor 426, but is not limited thereto.

The temperature sensor 422 may detect the temperature at which the heater 450 (or aerosol generating material) is heated. The aerosol generating device 400 may include a separate temperature sensor for detecting the temperature of the heater 450, or the heater 450 itself may serve as a temperature sensor. Alternatively, the temperature sensor 422 may be disposed around the battery 440 to monitor the temperature of the battery 440 .

Insertion detection sensor 424 can detect insertion and/or removal of an aerosol-generating article. For example, the insertion detection sensor 424 can include at least one of a film sensor, a pressure sensor, a light sensor, a resistive sensor, a capacitive sensor, an inductive sensor, and an infrared sensor, wherein the aerosol-generating article is inserted and/or The signal change as it is removed can be detected.

The puff sensor 426 may detect a user's puff based on various physical changes in the airflow path or airflow channel. For example, the puff sensor 426 may detect a user's puff based on any one of temperature change, flow change, voltage change, and pressure change.

In addition to the sensors 422 to 426 described above, the sensing unit 4120 includes a temperature/humidity sensor, an air pressure sensor, a magnetic sensor, an acceleration sensor, a gyroscope sensor, a position sensor (eg, GPS), It may further include at least one of a proximity sensor and an RGB sensor (illuminance sensor). Since a person skilled in the art can intuitively infer the function of each sensor from its name, a detailed description thereof may be omitted.

The output unit 430 may output and provide information about the state of the aerosol generating device 400 to the user. The output unit 430 may include at least one of a display unit 432, a haptic unit 434, and a sound output unit 436, but is not limited thereto. When the display unit 432 and the touch pad form a layer structure to form a touch screen, the display unit 432 may be used as an input device as well as an output device.

The display unit 432 may visually provide information about the aerosol generating device 400 to the user. For example, the information on the aerosol generating device 400 may include the charging/discharging state of the battery 440 of the aerosol generating device 400, the preheating state of the heater 450, the insertion/removal state of the aerosol generating article, or the aerosol generating state. This may refer to various information such as a state in which use of the device 400 is restricted (eg, detection of an abnormal item), and the display unit 432 may output the information to the outside. The display unit 432 may be, for example, a liquid crystal display panel (LCD) or an organic light emitting display panel (OLED). Also, the display unit 432 may be in the form of an LED light emitting device.

The haptic unit 434 may convert electrical signals into mechanical or electrical stimuli to tactilely provide information about the aerosol generating device 400 to the user. For example, the haptic unit 434 may include a motor, a piezoelectric element, or an electrical stimulation device.

The sound output unit 436 may provide information about the aerosol generating device 400 to the user audibly. For example, the sound output unit 436 may convert an electrical signal into a sound signal and output it to the outside.

The battery 440 may supply power used for the operation of the aerosol generating device 400 . The battery 440 may supply power so that the heater 450 can be heated. In addition, the battery 440 includes other components provided in the aerosol generating device 400 (eg, the sensing unit 420, the output unit 430, the user input unit 460, the memory 470, and the communication unit 480) can supply the power required for operation. The battery 440 may be a rechargeable battery or a disposable battery. For example, the battery 440 may be a lithium polymer (LiPoly) battery, but is not limited thereto.

The heater 450 may heat the aerosol generating material by receiving power from the battery 440 . Although not shown in FIG. 6 , the aerosol generating device 400 may further include a power conversion circuit (eg, a DC/DC converter) that converts power of the battery 440 and supplies it to the heater 450 . In addition, when the aerosol generating device 400 generates aerosol using an induction heating method, the aerosol generating device 400 may further include a DC/AC converter that converts DC power of the battery 440 into AC power.

The control unit 410, the sensing unit 420, the output unit 430, the user input unit 460, the memory 470, and the communication unit 480 may receive power from the battery 440 to perform their functions. Although not shown in FIG. 6 , a power conversion circuit that converts power of the battery 440 and supplies it to respective components, for example, a low dropout (LDO) circuit or a voltage regulator circuit may be further included.

In one embodiment, heater 450 may be formed of any suitable electrically resistive material. For example, suitable electrically resistive materials are titanium, zirconium, tantalum, platinum, nickel, cobalt, chromium, hafnium, niobium, molybdenum, tungsten, tin, gallium, manganese, iron, copper, stainless steel, nichrome, and the like. It may be a metal or metal alloy containing, but is not limited thereto. In addition, the heater 130 may be implemented as a metal heating wire, a metal hot plate on which an electrically conductive track is disposed, a ceramic heating element, etc., but is not limited thereto.

In another embodiment, the heater 450 may be an induction heating type heater. For example, the heater 450 may include a susceptor that heats an aerosol-generating material by generating heat through a magnetic field applied by a coil.

In one embodiment, the heater 450 may include a plurality of heaters. For example, the heater 450 may include a first heater for heating the cigarette and a second heater for heating the liquid phase.

The user input unit 460 may receive information input from the user or output information to the user. For example, the user input unit 460 may include a key pad, a dome switch, a touch pad (contact capacitance method, pressure resistive film method, infrared sensing method, surface ultrasonic conduction method, integral type tension measurement method, piezo effect method, etc.), a jog wheel, a jog switch, and the like, but are not limited thereto. In addition, although not shown in FIG. 6, the aerosol generating device 400 further includes a connection interface such as a universal serial bus (USB) interface, and is connected to other external devices through the connection interface such as a USB interface. Thus, information may be transmitted/received or the battery 440 may be charged.

The memory 470 is hardware that stores various data processed in the aerosol generating device 400, and may store data processed by the controller 410 and data to be processed. The memory 470 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (eg SD or XD memory, etc.), RAM (RAM, random access memory) SRAM (static random access memory), ROM (ROM, read-only memory), EEPROM (electrically erasable programmable read-only memory), PROM (programmable read-only memory), magnetic memory, magnetic disk , an optical disk, and at least one type of storage medium. The memory 470 may store the operating time of the aerosol generating device 400, the maximum number of puffs, the current number of puffs, at least one temperature profile, and data on the user's smoking pattern.

The communication unit 480 may include at least one component for communication with other electronic devices. For example, the communication unit 480 may include a short range communication unit 482 and a wireless communication unit 484 .

The short-range wireless communication unit 482 includes a Bluetooth communication unit, a Bluetooth Low Energy (BLE) communication unit, a Near Field Communication unit, a WLAN (Wi-Fi) communication unit, a Zigbee communication unit, and an infrared (IrDA) communication unit. , Infrared Data Association (WFD) communication unit, WFD (Wi-Fi Direct) communication unit, UWB (ultra-wideband) communication unit, Ant + communication unit, etc. may be included, but is not limited thereto.

The wireless communication unit 484 may include, but is not limited to, a cellular network communication unit, an Internet communication unit, a computer network (eg, LAN or WAN) communication unit, and the like. The wireless communication unit 484 may identify and authenticate the aerosol generating device 400 within the communication network using subscriber information (eg, International Mobile Subscriber Identifier (IMSI)).

The controller 410 may control the overall operation of the aerosol generating device 400. In one embodiment, the controller 410 may include at least one processor. The processor may be implemented as an array of a plurality of logic gates, or may be implemented as a combination of a general-purpose microprocessor and a memory in which programs executable by the microprocessor are stored. In addition, those having ordinary knowledge in the technical field to which this embodiment belongs can understand that it may be implemented in other types of hardware.

The controller 410 may control the temperature of the heater 450 by controlling supply of power from the battery 440 to the heater 450 . For example, the controller 410 may control power supply by controlling switching of a switching element between the battery 440 and the heater 450 . In another example, the direct heating circuit may control power supply to the heater 450 according to a control command of the controller 410 .

The control unit 410 may analyze a result detected by the sensing unit 420 and control processes to be performed thereafter. For example, the controller 410 may control power supplied to the heater 450 to start or end the operation of the heater 450 based on a result detected by the sensing unit 420 . For another example, the control unit 410 controls the amount of power supplied to the heater 450 so that the heater 450 can be heated to a predetermined temperature or maintained at an appropriate temperature based on the result detected by the sensing unit 420 . You can control the amount and time the power is supplied.

The controller 410 may control the output unit 430 based on a result detected by the sensing unit 420 . For example, when the number of puffs counted through the puff sensor 426 reaches a predetermined number, the controller 410 activates at least one of the display unit 432, the haptic unit 434, and the sound output unit 436. Through this, it is possible to notify the user that the aerosol generating device 400 will soon end.

In one embodiment, the controller 410 may control power supply time and/or power supply amount to the heater 450 according to the state of the aerosol-generating article detected by the sensing unit 420 . For example, when the aerosol-generating article is in an excessively humid state, the controller 410 may increase the preheating time by controlling the power supply time to the induction coil, compared to the case where the aerosol-generating article is in a normal state.

An embodiment may be implemented in the form of a recording medium including instructions executable by a computer, such as program modules executed by a computer. Computer readable media can be any available media that can be accessed by a computer and includes both volatile and nonvolatile media, removable and non-removable media. Also, computer readable media may include both computer storage media and communication media. Computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. Communication media typically includes computer readable instructions, data structures, other data in a modulated data signal such as program modules, or other transport mechanism, and includes any information delivery media.

7 to 9 are views showing parts of an aerosol generating device according to an embodiment.

7-9 , an aerosol-generating system 500 includes an aerosol-generating article 501 (eg, cigarette 2) and a heating element 502 (eg, cigarette 2) configured to heat the aerosol-generating article 501. : A heater (13, 450)) may be included.

The aerosol-generating article 501 may include a plurality of susceptors 501A, 501B. For example, the aerosol-generating article 501 may include at least one first susceptor 501A positioned relatively downstream, and at least one second susceptor 501B positioned relatively upstream. there is.

The heating body 502 can include a heating housing 510 configured to heat the aerosol-generating article 501 .

The heating housing 510 has a first surface 510A (eg, a first end surface or an upper end surface) and a second surface 510B opposite to the first surface 510A (eg, a second end surface or a lower surface). end face), an outer side face 510C between the first face 510A and the second face 510B, and an inner side face 510D between the first face 510A and the second face 510B. A body portion 511 may be included. The first face 510A may form an at least partially open face, while the second face 510B may form an at least partially closed face. The outer side face 510C includes a first outer region 510C1 (eg, an upper outer region) connected to the first face 510A, and a second outer region 510C2 (eg, an upper outer region) connected to the second face 510B. lower outer region). The inner side face 510D includes a first inner region 510D1 (eg, an upper inner region) connected to the first face 510A, and a second inner region 510D2 (eg, an upper inner region) connected to the second face 510B. lower inner region).

Heating housing 510 may include a hollow portion 512 defined by inner side face 510D. Hollow portion 512 may be configured to at least partially receive aerosol-generating article 501 .

The heating element 502 may include a plurality of coils 520 and 530 configured to generate magnetic fields in different directions, respectively. In one embodiment, the heating element 502 includes a first coil 520 configured to generate a magnetic field in a substantially first direction (eg, -Z direction), and substantially intersecting (eg, orthogonal to) the first direction. ) may include a second coil 530 configured to generate a magnetic field in a second direction (eg, -Y direction).

The first coil 520 may be configured to magnetically couple with the first susceptor 501A. The first coil 520 has a first axis A1 (eg, a +Z axis) and at least partially surrounds the outer side surface 510C and has a first helical direction (eg, a +Z axis) about the first axis A1. It may include a first winding portion 521 wound in a clockwise direction). Here, the first axis A1 may also be defined as an axis in the longitudinal direction of the body part 511 . In one embodiment, the first winding part 521 may be located in the first outer area 510C1.

In one embodiment, the first coil 520 may include a first connection portion 522 forming a first end (eg, a lower end) of the first winding portion 521 . The first connection part 522 may be electrically connected to the second coil 530 . In one embodiment, the first connection part 522 may be located in the first outer area 510C1. In some embodiments, the first connection portion 522 may at least partially surround the first outer region 510C1 with respect to the first axis A1.

In one embodiment, the first coil 520 may include a second connection portion 523 forming a second end opposite to the first end of the first winding portion 521 (eg, an upper end). . The second connection portion 523 may be electrically connected to a controller (eg, the controller 12 or 410) of the aerosol generating device (eg, the aerosol generating device 1 or 400). In one embodiment, the second connection portion 523 may extend across the first winding portion 521 in a direction opposite to the axial direction (eg, +Z direction) of the first axis A1 while being spaced apart from the side surface 510C.

The second coil 530 may be configured to magnetically couple with the second susceptor 501B. The second coil 530 is positioned on the outer side surface 510C and has a second axis A2 (eg, +Y axis) intersecting (eg, orthogonal to) the first axis A1 and is positioned on the second axis A second winding portion 531 wound in a second spiral direction (eg, clockwise) with respect to (A2) may be included. Here, the second axis A2 may be defined as a normal direction of the outer side surface 510C or a radial direction of the body portion 511 . In one embodiment, the second winding portion 531 may be located in the second outer region 510C2.

In one embodiment, the second coil 530 may include a third connection portion 532 forming a first end (eg, a left end) of the second winding portion 531 . The third connection part 532 may be electrically connected to the first coil 520 . In one embodiment, the third connection portion 532 includes a first portion 532A physically and electrically connected to the first connection portion 522, and the first portion 532A and the second winding portion 531 ) and a second part 532B physically and electrically connected to the second part 532B. In some embodiments, the first portion 532A is positioned in the first outer region 510C1 and at least partially surrounds the first outer region 510C1 about the first axis A1, and the second portion 532B is It extends along the axial direction of the first axis A1 on the second outer region 510C2 and at least partially forms a bend and extends on the first outer region 510C1.

In one embodiment, the second coil 530 may include a fourth connection part 533 forming a second end (eg, central end) of the second winding part 531 . The fourth connection portion 533 may be electrically connected to a controller (eg, the controller 12 or 410) of the aerosol generating device (eg, the aerosol generating device 1 or 400). In one embodiment, the fourth connection portion 533 may extend at least partially across the second winding portion 531 in a direction opposite to the axial direction of the first axis A1 (eg, the +Z direction) and spaced apart from the side surface 510C. In some embodiments, the fourth connecting portion 533 can run substantially parallel to the second connecting portion 523 .

In another embodiment, the first coil 520 and the second coil 530 may not be directly connected on the outer side surface 510C. For example, the first coil 520 may not include the first connection part 522 and the second coil 530 may not include the third connection part 532 .

In some embodiments, the heating body 502, the first coil 520 and the second coil 530 of the direction (eg, -X direction) that intersects (eg, perpendicular to) the direction in which the magnetic field is generated, respectively. It may also include a third coil (not shown) configured to generate a magnetic field. The third coil may be configured to magnetically couple with the second susceptor 501B. The third coil may include a third winding portion wound in a third spiral direction (eg, clockwise direction) about a third axis crossing (eg, orthogonal to) the first axis and the second axis, respectively.

In one embodiment, the third coil may include a fifth connection part physically and electrically connected to the first winding part 521 and/or the second winding part 531 . In another embodiment, the third coil may not include the fifth connection part.

In one embodiment, the third coil may include a sixth connection part electrically connected to a controller (eg, the controller 12 or 410) of the aerosol generating device (eg, the aerosol generating device 1 or 400).

10 is a cross-sectional view of a portion of an aerosol-generating system according to one embodiment.

Referring to FIG. 10 , an aerosol-generating system 600 may include an aerosol-generating article 601 and an aerosol-generating device 602 .

In one embodiment, the aerosol-generating article 601 may include at least one susceptor 601A, 601B. For example, an aerosol-generating article 601 may include at least one first relatively downstream susceptor 601A and/or at least one relatively upstream second susceptor 601B. can In other embodiments, at least one susceptor 601A, 601B may not be included in the aerosol-generating article 601. At least one susceptor 601A, 601B may be included in the aerosol-generating device 602.

In one embodiment, the at least one susceptor 601A, 601B has various thicknesses (eg, +/-X direction thickness and/or +/-Y direction thickness) and various lengths (eg, +/-Z direction length). , can have different materials and/or different parameters. Various parameters may determine the type of susceptor 601A, 601B, and may further determine the type of various aerosol-generating articles 601.

The aerosol-generating device 602 can include a heating housing 610 . The heating housing 610 may include a body portion 611 and a hollow portion 612 . The body portion 611 includes a first face 610A, a second face 610B opposite to the first face 610A, and an outer side face 610C between the first face 610A and the second face 610B. ), and an inner side surface 610D between the first surface 610A and the second surface 610B opposite to the outer side surface 610C.

The aerosol-generating device 602 may include at least one coil 620, 630. In one embodiment, the aerosol-generating device 602 may include a first coil 620 and a second coil 630. In another embodiment, the aerosol-generating device 602 may include either a first coil 620 or a second coil 630 . In another embodiment, the aerosol generating device 602 has a first coil 620 and a second coil 630 in a direction (eg, -X direction) crossing (eg, orthogonal to) the direction in which each generates a magnetic field. It may also include a third coil (not shown) configured to generate a magnetic field.

In one embodiment, applying current and/or voltage to the first coil 620 may be independent of applying current and/or voltage to the second coil 630 . In another embodiment, applying current and/or voltage to the first coil 620 may be interlocked with applying current and/or voltage to the second coil 630 .

In one embodiment, the aerosol-generating device 602 may include a first magnetic sensor 640A configured to detect a change in the first magnetic field B1 of the first coil 620 . When a current and/or voltage is applied to the first coil 620, the first magnetic sensor 640A detects a change in magnitude and/or strength of the first magnetic field B1 by the first coil 620. can In one embodiment, the first magnetic sensor 640A may include a Hall sensor.

In one embodiment, the aerosol generating device 602 (eg, the controller 410) generates a first coil 620 based on a change in the first magnetic field B1 detected by the first magnetic sensor 640A. A profile that can change the applied current and/or voltage can be determined. For example, the current and/or voltage applied to the first coil 620 may vary depending on the type of the aerosol-generating article 601, and thus the first magnetic field 620 generated by the first coil 620 Since the change may vary, information about a change in the first magnetic field 620 sensed by the first magnetic sensor 640A may be helpful in recognizing at least one characteristic of the aerosol-generating article 601 . In other words, the aerosol-generating device 602 can be configured to correspond to various types of aerosol-generating articles 601 .

In one embodiment, the aerosol-generating device 602 (e.g., the control unit 410) generates a first magnetic field (as seen by inhalation of the aerosol-generating article 601) sensed by the first magnetic sensor 640A. Based on the change in B1), puff recognition or puff counting may be performed.

In one embodiment, the first magnetic sensor 640A may be disposed adjacent to the first coil 620 . For example, the first magnetic sensor 640A may be spaced apart by one distance on the side of the first coil 620 .

In one embodiment, the first coil 620 and the first magnetic sensor 640A may be arranged in one direction (eg, +/-Y direction) of the heating housing 620 . The first magnetic sensor 640A may at least partially overlap the first coil 620 in a normal direction (eg, +/-Y direction) of the outer side surface 610C of the body portion 611 .

In an embodiment, the first magnetic sensor 640A may be disposed on a middle portion of a length portion of the first coil 620 along the first axis A1 of the first coil 620 .

In one embodiment, the aerosol-generating device 602 may include a second magnetic sensor 640B configured to detect a change in the second magnetic field B2 of the second coil 630. When a current and/or voltage is applied to the second coil 630, the second magnetic sensor 640B detects a change in magnitude and/or strength of the second magnetic field B2 by the second coil 630. can In one embodiment, the second magnetic sensor 640B may include a Hall sensor.

In one embodiment, the aerosol generating device 602 (eg, the controller 410) generates a second coil 630 based on a change in the second magnetic field B2 detected by the second magnetic sensor 640B. A profile that can change the applied current and/or voltage can be determined. For example, the current and/or voltage applied to the second coil 630 may vary depending on the type of aerosol-generating article 601, and thus the second magnetic field 630 generated by the second coil 630 Since the change may vary, information about the change in the second magnetic field 630 sensed by the second magnetic sensor 640B may be helpful in recognizing at least one characteristic of the aerosol-generating article 601 .

In one embodiment, the aerosol-generating device 602 (e.g., the control unit 410) generates a first magnetic field (viewed as inhalation of the aerosol-generating article 601) sensed by a second magnetic sensor 640B. Based on the change in B2), puff recognition or puff counting may be performed.

In an embodiment, the second magnetic sensor 640B determines the normal direction of the +Y direction in the area where the second coil 630 is disposed in the body part 611 (eg, the second outer area 510C2 in FIG. 8 ). area) and a different area (eg, the area having a normal direction of the -Y direction in the second outer area 510C2 of FIG. 8 ). In one embodiment, the second magnetic sensor 640B may be disposed opposite to the second coil 630 with respect to the body portion 611 .

In one embodiment, the second coil 630 and the second magnetic sensor 640B may be arranged in one direction (eg, +/-Y direction) of the heating housing 620 . The second magnetic sensor 640B may at least partially overlap the second coil 630 in a normal direction (eg, +/-Y direction) of the outer side surface 610C of the body portion 611 .

In one embodiment, the second magnetic sensor 640B may be disposed on an extension of the second axis A2 of the second coil 630.

In an embodiment not shown, the aerosol generating device 602 may include a number of magnetic sensors corresponding to the number of coils. For example, the aerosol-generating device 602 includes a first magnetic sensor 640A, a second magnetic sensor 640B, and a third magnetic sensor configured to detect a change in the respective magnetic fields of the first coil, the second coil, and the third coil. A magnetic sensor (not shown) may be included.

In one embodiment, the aerosol generating device 602 may include at least one shielding portion 642A or 642B configured to shield the at least one magnetic sensor 640A or 640B from the outside. For example, the shielding units 642A and 642B may shield external magnetic or electromagnetic related noise in order to increase the sensitivity of the magnetic sensors 640A and 640B.

In one embodiment, the aerosol-generating device 602 includes a first shield 642A configured to shield the first magnetic sensor 640A and a second shield 642B configured to shield the second magnetic sensor 640B. ) may be included. In one embodiment, the first shielding part 642A may substantially shield the front surface of the first magnetic sensor 640A. In another embodiment, the first shielding part 642A may substantially shield other surfaces of the first magnetic sensor 640A except for the surface facing the first coil 620 (eg, the -Y direction surface). can In one embodiment, the second shielding part 642B may substantially shield the front surface of the second magnetic sensor 640B. In another embodiment, the second shielding part 642B may substantially shield other surfaces of the second magnetic sensor 640B except for the surface facing the second coil 630 (eg, the +Y direction surface). can

In another embodiment, the aerosol generating device 602 may include any one of the first shielding unit 642A and the second shielding unit 642B. In other embodiments, the aerosol-generating device 602 may include an additional shield configured to shield an additional magnetic sensor (eg, a third magnetic sensor).

Claims (15)

a heating housing configured to contain an aerosol-generating article;
a first coil disposed in the heating housing and configured to generate a magnetic field; and
a first magnetic sensor configured to sense a change in a magnetic field generated by the first coil;
Aerosol generating device comprising a. According to claim 1,
The aerosol-generating device of claim 1 , wherein the first magnetic sensor is disposed adjacent to the first coil. According to claim 1,
The aerosol-generating device of claim 1 , wherein the first coil and the first magnetic sensor are arranged to overlap at least partially in one direction of the heating housing. According to claim 1,
The aerosol-generating device of claim 1, wherein the first coil has an axis in a longitudinal direction of the heating housing. According to claim 1,
The aerosol-generating device further comprises a shield at least partially surrounding the first magnetic sensor. According to claim 1,
a second coil disposed in an area of the heating housing different from an area in which the first coil is disposed and configured to generate a magnetic field;
a second magnetic sensor configured to detect a change in a magnetic field generated by the second coil;
An aerosol generating device further comprising a. According to claim 6,
The second magnetic sensor is disposed opposite to the second coil with respect to the heating housing. According to claim 6,
The aerosol generating device of claim 1 , wherein the second coil and the second magnetic sensor are arranged to at least partially overlap in one direction of the heating housing. According to claim 6,
The aerosol-generating device of claim 1, wherein the second coil has an axis in a direction normal to the side surface of the heating housing. According to claim 6,
The aerosol-generating device further comprises a shield at least partially surrounding the second magnetic sensor. aerosol-generating articles comprising susceptors; and
a heating housing configured to receive the aerosol-generating article, a first coil disposed in the heating housing and coupled with the susceptor and configured to generate a magnetic field, and configured to sense a change in the magnetic field generated by the first coil. an aerosol generating device comprising a first magnetic sensor;
An aerosol-generating system comprising a. According to claim 11,
The aerosol-generating system of claim 1 , wherein the first magnetic sensor is disposed adjacent to the first coil. According to claim 11,
The aerosol generating device,
a second coil disposed in a region of the heating housing different from the region in which the first coil is disposed and configured to couple with the susceptor and generate a magnetic field; and
a second magnetic sensor configured to detect a change in a magnetic field generated by the second coil;
An aerosol-generating system further comprising. According to claim 13,
The second magnetic sensor is disposed opposite to the second coil with respect to the heating housing. According to claim 11,
The first coil and the first magnetic sensor are arranged to at least partially overlap in one direction of the heating housing, and the second coil and the second magnetic sensor are arranged to at least partially overlap in the direction of the heating housing. aerosol-generating system.

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