KR20230075702A - Device for generating aerosol - Google Patents

Abstract

An aerosol-generating device according to various embodiments includes a first housing and a second housing positioned in the first housing and configured to receive an aerosol-generating article, the second housing having a first perimeter and a first width. A first layer including a first rim, and a plurality of first air flow passages formed on the first rim, and a second rim connected to the first rim and having a second circumference and a second width, and a plurality of second rims. and a second layer comprising a second air flow passage in fluid communication with the first air flow passages and formed by the second rim.

Description

Aerosol generating device {DEVICE FOR GENERATING AEROSOL}

Various embodiments below relate to an aerosol generating device.

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.

An aerosol-generating device according to various embodiments can control the flow of airflow and improve flavor suitable for various types of aerosol-generating articles.

An aerosol-generating device according to various embodiments includes a first housing and a second housing positioned in the first housing and configured to receive an aerosol-generating article, the second housing having a first perimeter and a first width. A first layer including a first rim, and a plurality of first air flow passages formed on the first rim, and a second rim connected to the first rim and having a second circumference and a second width, and a plurality of second rims. and a second layer comprising a second air flow passage in fluid communication with the first air flow passages and formed by the second rim.

In one embodiment, the plurality of first air flow passages may be formed to be recessed in a first width of the first edge.

In one embodiment, the plurality of first air flow passages may be arranged at substantially equal intervals along the first circumference of the first rim.

In one embodiment, the second airflow passage may be a single airflow passage.

In an embodiment, the second layer may further include a susceptor positioned within the second rim and configured to at least partially receive the aerosol-generating article and form the second airflow passage with the second rim. there is.

In one embodiment, the second housing includes a third rim connected to the second rim and having a third circumference and a third width, and a plurality of first rims formed on the third rim and in fluid communication with the second air passage. It may further include a third layer including 3 airflow passages.

In one embodiment, the plurality of third air flow passages may be formed to be recessed in a third width of the third edge.

In one embodiment, the plurality of third air flow passages may be arranged at substantially equal intervals along the third circumference of the third rim.

In one embodiment, the third layer, a plurality of ribs located between a pair of adjacent third air flow passages and each formed in the thickness direction of the third edge intersecting the third circumference and the third width. It may contain more sets.

In one embodiment, the second layer may further include a first bottom portion connected to the second rim and configured to support the third rim.

In one embodiment, the first bottom portion may include a plurality of first air flow holes in fluid communication with the plurality of third air flow passages.

In an embodiment, the second layer comprises a wall portion connected to the first bottom portion and comprising a plurality of second airflow holes, and a second layer connected to the wall portion and configured to guide airflow to the aerosol-generating article. It may further include a bottom portion.

In one embodiment, the second housing includes a plurality of fixing parts connected to the first rim and positioned opposite the second rim and configured to secure the aerosol-generating article, and the plurality of first airflow passages. and an article insert including a plurality of insert airflow passages formed between the plurality of fixtures and fluidly connected with the plurality of fixtures.

In one embodiment, the first housing may be configured to be sealed such that air is introduced into the second housing only through the plurality of air flow passages of the insertion part.

A housing for an aerosol generating device according to various embodiments includes a first rim having a first circumference and a first width, and a first layer including a plurality of first airflow passages formed on the first rim, the first rim a second layer comprising a second rim connected and having a second circumference and a second width, and a second air passage in fluid communication with a plurality of first air passages and defined by the second rim; and the second rim and a third layer including a third rim connected to and having a third circumference and a third width, and a plurality of third air passages formed in the third rim and in fluid communication with the second air passage.

According to various embodiments, an airflow direction and/or airflow amount may be controlled. According to various embodiments, flavors suitable for various types of aerosol-generating articles may be provided. 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 is a block diagram of an aerosol generating device according to various embodiments.
2 is a perspective view of an aerosol-generating system according to one embodiment.
FIG. 3 is a cross-sectional view of the aerosol generating system of FIG. 2 taken along line 3-3.
4 is a view of the aerosol-generating system of FIG. 2 viewed from one direction.
5 is a cross-sectional view of the aerosol generating system of FIG. 2 along line 5-5.
6 is a cross-sectional view of the aerosol-generating system of FIG. 2 taken along line 6-6.
FIG. 7 is a cross-sectional view of the aerosol generating system of FIG. 2 taken along line 7-7.
8 is a cross-sectional view of the aerosol-generating system of FIG. 2 taken along line 8-8.
9 is a cross-sectional view of the aerosol-generating system of FIG. 2 taken along line 9-9.
10 to 12 are views illustrating examples in which an aerosol generating article (eg, cigarette) is inserted into an aerosol generating device according to an embodiment.
13 and 14 show examples of aerosol-generating articles (eg, cigarettes) according to an embodiment.

Terms used in the embodiments have been selected as general terms that are currently widely used as much as possible while considering functions in the embodiments, but they may vary according to intentions or precedents of those skilled in the art, 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 may be implemented as hardware or software or a combination of hardware and software.

As used herein, when an expression such as "at least one of" precedes an array of components, it modifies the entire array rather than individual components. For example, the expression "at least one of a, b, and c" should be interpreted as including a, b, c, or a and b, a and c, b and c, or a and b and c. do.

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

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

The heater may include a tubular heating element, a plate heating element, a needle 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.

A cigarette may include a tobacco rod and a filter rod. Tobacco rods can be made into sheets, can be made into strands, and tobacco sheets can be made into chopped cut filler. Additionally, the tobacco rod 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.

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

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

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

The cartridge may hold the aerosol-generating material in any one of various states such as a liquid state, a solid state, a gaseous state, a gel state, and the like. Aerosol generating materials may include liquid compositions. 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 cartridge may perform a function of generating an aerosol by converting a phase of an aerosol-generating material inside the cartridge into a gas phase by being operated by an electric signal or a radio signal transmitted from the main body. Aerosol may refer to a gas in a state in which vaporized particles and air generated from an aerosol-generating material are mixed.

In another embodiment, the aerosol-generating device may generate an aerosol by heating the liquid composition, and the aerosol may pass through the cigarette and be delivered to the user. That is, the aerosol generated from the liquid composition can move along the air flow passage of the aerosol generating device, and the air flow passage can be configured such that the aerosol can pass through the cigarette and be delivered to the user.

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

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

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

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

For example, the viscosity of the aerosol-generating material absorbed in the wick may be lowered by heat generated from the vibrator, and the aerosol-generating material whose viscosity is lowered by the ultrasonic vibration generated from the vibrator may be finely divided, thereby generating an aerosol. , but is not limited thereto.

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

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

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

The aerosol generating device may constitute a system with a separate cradle. For example, the cradle may charge the battery of the aerosol-generating device. Alternatively, the heater may be heated in a state in which the cradle and the aerosol generating device are coupled.

Hereinafter, with reference to the accompanying drawings, an embodiment of the present disclosure will be described in detail so that those skilled in the art can easily carry it out. The present disclosure may be implemented in a form embodied in the aerosol generating devices of various embodiments described above or implemented in various different forms, and is not limited to the embodiments described herein.

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

Referring to FIG. 1 , the aerosol generating device 100 includes a control unit 110, a sensing unit 120, an output unit 130, a battery 140, a heater 150, a user input unit 160, and a memory 170. And it may include a communication unit 180. However, the internal structure of the aerosol generating device 100 is not limited to that shown in FIG. 1 . That is, those skilled in the art can understand that some of the components shown in FIG. 1 may be omitted or new components may be further added depending on the design of the aerosol generating device 100. there is.

The sensing unit 120 may detect a state of the aerosol generating device 100 or a state around the aerosol generating device 100 and transmit the detected information to the controller 110 . Based on the detected information, the control unit 110 performs various functions such as controlling the operation of the heater 150, restricting smoking, determining whether an aerosol generating article (eg, cigarette, cartridge, etc.) is inserted, and displaying a notification, etc. The aerosol generating device 100 can be controlled.

The sensing unit 120 may include at least one of a temperature sensor 122, an insertion detection sensor 124, and a puff sensor 126, but is not limited thereto.

The temperature sensor 122 may detect the temperature at which the heater 150 (or aerosol generating material) is heated. The aerosol generating device 100 may include a separate temperature sensor for detecting the temperature of the heater 150, or the heater 150 itself may serve as a temperature sensor. Alternatively, the temperature sensor 122 may be disposed around the battery 140 to monitor the temperature of the battery 140 .

Insertion detection sensor 124 may detect insertion and/or removal of an aerosol-generating article. For example, insertion detection sensor 124 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 126 may detect a user's puff based on various physical changes in the airflow path or airflow channel. For example, the puff sensor 126 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 122 to 126 described above, the sensing unit 1120 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 130 may output and provide information about the state of the aerosol generating device 100 to the user. The output unit 130 may include at least one of a display unit 132, a haptic unit 134, and a sound output unit 136, but is not limited thereto. When the display unit 132 and the touch pad form a layer structure to form a touch screen, the display unit 132 may be used as an input device as well as an output device.

The display unit 132 may visually provide information about the aerosol generating device 100 to the user. For example, the information on the aerosol generating device 100 may include the charging/discharging state of the battery 140 of the aerosol generating device 100, the preheating state of the heater 150, the insertion/removal state of the aerosol generating article, or the aerosol generation. This may refer to various information such as a state in which use of the device 100 is restricted (eg, detection of an abnormal item), and the display unit 132 may output the information to the outside. The display unit 132 may be, for example, a liquid crystal display panel (LCD) or an organic light emitting display panel (OLED). Also, the display unit 132 may be in the form of an LED light emitting device.

The haptic unit 134 may convert an electrical signal into a mechanical stimulus or an electrical stimulus to tactilely provide information about the aerosol generating device 100 to the user. For example, the haptic unit 134 may include a motor, a piezoelectric element, or an electrical stimulation device.

The sound output unit 136 may provide information about the aerosol generating device 100 to the user audibly. For example, the sound output unit 136 may convert an electrical signal into a sound signal and output it to the outside.

The battery 140 may supply power used for the operation of the aerosol generating device 100. The battery 140 may supply power so that the heater 150 can be heated. In addition, the battery 140 includes other components provided in the aerosol generating device 100 (eg, the sensing unit 120, the output unit 130, the user input unit 160, the memory 170, and the communication unit 180) can supply the power required for operation. The battery 140 may be a rechargeable battery or a disposable battery. For example, the battery 140 may be a lithium polymer (LiPoly) battery, but is not limited thereto.

The heater 150 may receive power from the battery 140 to heat the aerosol generating material. Although not shown in FIG. 1 , the aerosol generating device 100 may further include a power conversion circuit (eg, a DC/DC converter) that converts power of the battery 140 and supplies it to the heater 150 . In addition, when the aerosol generating device 100 generates aerosol using an induction heating method, the aerosol generating device 100 may further include a DC/AC converter for converting DC power of the battery 140 into AC power.

The control unit 110, the sensing unit 120, the output unit 130, the user input unit 160, the memory 170, and the communication unit 180 may receive power from the battery 140 to perform functions. Although not shown in FIG. 1 , a power conversion circuit that converts power of the battery 140 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 150 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 150 may be implemented as a metal hot 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 150 may be an induction heating type heater. For example, the heater 150 may include a susceptor that heats an aerosol-generating material by generating heat through a magnetic field applied by a coil.

The user input unit 160 may receive information input from the user or output information to the user. For example, the user input unit 160 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. 1, the aerosol generating device 100 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 140 may be charged.

The memory 170 is hardware that stores various data processed in the aerosol generating device 100, and may store data processed by the controller 110 and data to be processed. The memory 170 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 170 may store the operating time of the aerosol generating device 100, 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 180 may include at least one component for communication with other electronic devices. For example, the communication unit 180 may include a short range communication unit 182 and a wireless communication unit 184 .

The short-range wireless communication unit 182 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 184 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 184 may identify and authenticate the aerosol generating device 100 within the communication network using subscriber information (eg, International Mobile Subscriber Identifier (IMSI)).

The controller 110 may control the overall operation of the aerosol generating device 100. In one embodiment, the controller 110 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 110 may control the temperature of the heater 150 by controlling supply of power from the battery 140 to the heater 150 . For example, the controller 110 may control power supply by controlling switching of a switching element between the battery 140 and the heater 150 . In another example, the direct heating circuit may control power supply to the heater 150 according to a control command of the controller 110 .

The control unit 110 may analyze a result detected by the sensing unit 120 and control processes to be performed thereafter. For example, the controller 110 may control power supplied to the heater 150 to start or end the operation of the heater 150 based on a result detected by the sensing unit 120 . For another example, the control unit 110 controls the amount of power supplied to the heater 150 so that the heater 150 can be heated to a predetermined temperature or maintained at an appropriate temperature based on the result detected by the sensing unit 120 . You can control the amount and time the power is supplied.

The controller 110 may control the output unit 130 based on a result detected by the sensing unit 120 . For example, when the number of puffs counted through the puff sensor 126 reaches a predetermined number, the controller 110 activates at least one of the display unit 132, the haptic unit 134, and the sound output unit 136. Through this, it is possible to notify the user that the aerosol generating device (eg, the aerosol generating device 200) will soon end.

In one embodiment, the controller 110 may control power supply time and/or power supply amount to the heater 150 according to the state of the aerosol generating article detected by the sensing unit 120 . For example, when an aerosol-generating article (e.g., aerosol-generating article 201) is in an over-humidified condition, control unit 110 controls the power supply time to the induction coil so that the aerosol-generating article preheats more than under normal conditions. time can be increased.

2-9 , an aerosol-generating system 20 may include an aerosol-generating device 200 and an aerosol-generating article 201 . The aerosol generating device 200 may generate an aerosol by accommodating the aerosol generating article 201 in an internal space and electrically heating the aerosol generating article 201 .

The aerosol-generating device 200 may include a first housing 210 configured to at least partially house the aerosol-generating article 201 and to house various electronic/mechanical components. The first housing 210 may include, for example, a first face 210A (eg, a front face), a second face 210B opposite to the first face 210A (eg, a rear face), and a first face (eg, a rear face). 210A) and at least one third surface 210C (eg, a side surface) between the second surface 210B.

In one embodiment, the first housing 210 at least partially covers the first surface 210A and opens or closes a passage (eg, article insert 220) through which the aerosol-generating article 201 is inserted or removed. It may include a flap 212 configured to. The flap 212 may be rotatably connected to the third surface 210C, for example.

In one embodiment, the first housing 210 may include an opening and closing mechanism configured to open or close a passage through which the aerosol-generating article 201 is inserted or removed (eg, article insert 220 ). The opening/closing mechanism may, for example, guide slots 213B formed on the first surface 210A around the article insertion portion 220 and open or close the article insertion portion 220 along the guide slots 213B. It may include a configured door (213A). In some embodiments, door 213A and guide slot 213B may be covered by flap 212 .

In one embodiment, the first housing 210 may include a connection terminal 214 formed on the second surface 210B. The connection terminal 214 may include a connector configured to physically connect the aerosol generating device 200 to an external device through the connection terminal 214 . The connection terminal 214 may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (eg, a headphone connector).

The aerosol-generating device 200 may include an article insert 220 comprising an insertion space 221 into which an aerosol-generating article 201 is inserted and an aerosol-generating article 201 removed. In one embodiment, the article insert 220 includes a plurality of (eg, four) fixing parts 222 configured to hold the aerosol-generating article 201, and between the plurality of fixing parts 222. It may include a plurality (eg, four) of air flow passages 224 formed in the insertion part. In one embodiment, the insert airflow passages 224 may introduce air into the first housing 210 (eg, into the second housing 230) only through the insert airflow passages 224. The first housing 210 may be sealed so that air flow does not occur between the outside and the inside of the first housing 210 except for the air flow passages 224 of the insertion part.

The aerosol-generating device 200 can include a second housing 230 configured to at least partially contain an aerosol-generating article 201 and to heat the aerosol-generating article 201 . The second housing 230 may be positioned within the first housing 210 . The second housing 230 may be in fluid communication with the article insertion portion 220 .

In one embodiment, the second housing 230 may include a plurality of layers 232 , 234 , and 236 including one or more airflow passages. In one embodiment, the plurality of layers 232 , 234 , and 236 may integrally form the second housing 230 . In some embodiments, any one layer 232 , 234 , 236 among the plurality of layers 232 , 234 , 236 may be formed as a separate component from the other layer 232 , 234 , 236 . In another embodiment, the plurality of layers 232, 234, and 236 may be integrally formed seamlessly.

In one embodiment, the second housing 230 may include a first layer 232 , a second layer 234 , and a third layer 236 .

The first layer 232 has a first perimeter (eg, a first circumferential portion), a first width (eg, a first radial portion), and a first thickness (eg, a first thickness portion). It may include a first edge 232A, and a plurality of (eg, four) first airflow passages 232B formed on the first edge 232A. The plurality of first airflow passages 232B may be connected in fluid communication with the plurality of insert airflow passages 224 .

In one embodiment, the first edge (232A) may be positioned to be spaced apart from the plurality of fixing parts (222). In one embodiment, the first rim (232A) may extend in the circumferential direction and form a substantially annular structure.

In one embodiment, an inner surface of the first rim 232A may form a first clearance distance from one side (eg, side) of the aerosol-generating article 201 when the aerosol-generating article 201 is inserted. In other embodiments, the inner surface of the first rim 232A may contact one side (eg, side) of the aerosol-generating article 201 upon insertion. In another embodiment, a seal may be formed between the inner surface of the first rim 232A and one side (eg, side) of the aerosol-generating article 201 .

In one embodiment, the plurality of first air flow passages 232B may be formed to be recessed in the width direction of the first rim 232A. In another embodiment, a plurality of first air flow passages 232B may be formed within the first rim 232A. In one embodiment, the plurality of first air flow passages (232B) may be arranged at substantially equal intervals in the circumferential direction of the first edge (232A). In another embodiment, the spacing between any one pair of adjacent first air passages 232B of the plurality of first air passages 232B is the same as the spacing between the other pair of adjacent first air passages 232B. It may be different.

The second layer 234 has a second perimeter (eg, a second circumferential portion), a second width (eg, a second radial portion), and a second thickness (eg, a second thickness portion). It may include a second rim (234A), and a second air flow passage (234B) formed by the second rim (234A). Second airflow passage 234B may be connected in fluid communication with a plurality of first airflow passages 232B.

The second rim 234A may be connected to the first rim 232B. For example, the second rim 234A may be connected to the first rim 232B by another mechanical component. As another example, the second border 234A may be connected to the first border 232B. In one embodiment, the second rim (234A) may extend in the circumferential direction and form a substantially annular structure.

In one embodiment, the dimension of the inner surface of the second rim 234A (eg, the diameter of the second thickness direction portion) is the dimension of the inner surface of the first rim 232A (eg, the diameter of the first thickness direction portion). can be bigger In another embodiment, the dimension of the inner surface of the second rim 234A (eg, the diameter of the second thickness direction portion) is the dimension of the inner surface of the first rim 232A (eg, the diameter of the first thickness direction portion). may be substantially the same as In another embodiment, the dimension of the inner surface of the second rim 234A (eg, the diameter of the second thickness direction portion) is the dimension of the inner surface of the first rim 232A (eg, the diameter of the first thickness direction portion). may be smaller than

In one embodiment, an inner surface of the second rim 234A may form a second clearance distance from one side (eg, side) of the aerosol-generating article 201 when the aerosol-generating article 201 is inserted. In an embodiment, the second margin distance may be greater than the first margin distance. In another embodiment, the second clearance distance may be substantially the same as the first clearance distance. In another embodiment, the second margin distance may be smaller than the first margin distance.

In one embodiment, the second airflow passage 234B may be formed within the second rim 234A. In some embodiments, the second airflow passage 234B may be defined by one surface (eg, a portion in the second thickness direction) of the second rim 234A. In some embodiments, the secondary airflow passage 234B may also be defined by one side (eg, side) of the aerosol-generating article 201 upon insertion of the aerosol-generating article 201 .

In one embodiment, the second airflow passage 234B may be a single airflow passage. In another embodiment, the second layer 234 may include a plurality of second airflow passages 234B. For example, the number of second air passages 234B may be the same as the number of first air passages 234A. As another example, the number of second air passages 234B may be different from the number of first air passages 234A.

In one embodiment, the second housing 230 includes a susceptor 238 configured to at least partially receive the aerosol-generating article 201 and support a side (eg, side) of the aerosol-generating article 201 . can do. The susceptor 238 may be positioned within the second rim 234A. The susceptor 238 may be positioned on the third layer 236 and extend along a side portion (eg, a portion of the second edge 234A in the width direction) of the second layer 234 .

The third edge 236A has a third circumference (eg, a third circumferential portion), a third width (eg, a third radial portion), and a third thickness (eg, a third thickness direction portion). It may include three rims 236A, and a plurality of (eg, four) third air flow passages 236B formed by the third rims 236A. The plurality of third air passages 236B may be coupled in fluid communication with the second air passages 234B.

The third rim 236A may be connected to the second rim 234A. In one embodiment, the outer surface of the third rim 236A may face the inner surface of the second rim 234A. In some embodiments, an outer surface of the third rim 236A may contact the second rim 234A. In some embodiments, a seal may be formed between the outer surface of the third rim 236A and the inner surface of the second rim 234A. In one embodiment, the third edge (236A) may extend in the circumferential direction and form a substantially annular structure.

In one embodiment, the dimension of the inner surface of the third rim 236A (eg, the diameter of the third thickness direction portion) is the dimension of the inner surface of the first rim 232A (eg, the diameter of the first thickness direction portion). can be bigger In another embodiment, the dimension of the inner surface of the third rim 236A (eg, the diameter of the third thickness direction portion) is the dimension of the inner surface of the first rim 232A (eg, the diameter of the first thickness direction portion). may be substantially the same as In another embodiment, the dimension of the inner surface of the third rim 236A (eg, the diameter of the third thickness direction portion) is the dimension of the inner surface of the first rim 232A (eg, the diameter of the first thickness direction portion). may be smaller than

In one embodiment, the dimension of the inner surface of the third rim 236A (eg, the diameter of the third thickness direction portion) is the dimension of the inner surface of the second rim 232B (eg, the diameter of the second thickness direction portion). can be bigger In another embodiment, the dimension of the inner surface of the third rim 236A (eg, the diameter of the third thickness direction portion) is the dimension of the inner surface of the second rim 232B (eg, the diameter of the second thickness direction portion). may be substantially the same as In another embodiment, the dimension of the inner surface of the third rim 236A (eg, the diameter of the third thickness direction portion) is the dimension of the inner surface of the second rim 232B (eg, the diameter of the second thickness direction portion). may be smaller than

In one embodiment, an inner surface of the third rim 236A may form a third clearance distance with one side (eg, side) of the aerosol-generating article 201 when the aerosol-generating article 201 is inserted. In an embodiment, the third margin distance may be smaller than the first margin distance. In another embodiment, the third margin distance may be substantially the same as the first margin distance. In another embodiment, the third margin distance may be greater than the first margin distance. In one embodiment, the third margin distance may be smaller than the second margin distance. In another embodiment, the third margin distance may be substantially equal to the second margin distance. In another embodiment, the third margin distance may be greater than the second margin distance.

In other embodiments, the inner surface of the third rim 236A may contact one side (eg, side) of the aerosol-generating article 201 upon insertion. In another embodiment, a seal may be formed between the inner surface of the third rim 236A and one side (eg, side) of the aerosol-generating article 201 .

In one embodiment, the plurality of third air flow passages 236B may be formed to be recessed in the width direction of the third rim 236A. In another embodiment, a plurality of third airflow passages 236B may be formed within the third rim 236A. In one embodiment, the plurality of third air flow passages 236B may be arranged at substantially equal intervals in the circumferential direction of the third rim 236A. In another embodiment, the spacing between any one pair of adjacent third air passages 236B of the plurality of third air passages 236B is the same as the spacing between the other pair of adjacent third air passages 236B. It may be different.

In one embodiment, the third layer 236 may include a plurality of (eg, four) first recesses 236C formed in the thickness direction of the third edge 236A. The plurality of first recesses 236C may be configured to support at least one component (eg, the susceptor 238) in the second housing 230. A plurality of first recesses 236C may be respectively formed between a pair of adjacent third air flow passages 236B.

In one embodiment, the second layer 234 may include a first bottom portion 234C configured to support the third rim 236A. The first bottom portion 234C may be connected to the second rim 234A and may contact the third rim 236A. The first bottom part 234C may extend from the second rim 234A in a direction (eg, a radial direction) crossing the thickness direction of the second rim 234A. The first bottom portion 234C may have a greater width than the second width of the second edge 234A.

In one embodiment, the first bottom portion 234C may include a plurality of first airflow holes H1. The plurality of first air flow holes H1 are configured to communicate with the plurality of third air flow passages 236B and allow the air current passing through the plurality of third air flow passages 236B to flow out of the second rim 234A. can In one embodiment, the plurality of first airflow holes H1 may be arranged at substantially equal intervals along the circumferential direction of the first bottom portion 234C. In another embodiment, the interval between any one pair of the first air flow holes H1 among the plurality of first air flow holes H1 may be different from the interval between the other pair of first air flow holes H1.

In one embodiment, the first bottom portion 234C may include a second recess 234D formed in the thickness direction of the first bottom portion 234C. The second recess 234D can, for example, support one side (eg, the bottom side) of the aerosol-generating article 201 upon insertion of the aerosol-generating article 201 . In one embodiment, the second recess 234D may be formed between an inner edge and an outer edge of the first bottom portion 234C. In some embodiments, the second recess 234D may be at least partially formed from an inner edge to an outer edge of the first bottom portion 234C. In one embodiment, the second recess 234D may be formed between the inner edge of the first bottom portion 234C and the plurality of first airflow holes H1.

In one embodiment, the second layer 234 comprises a second bottom portion 234E spaced apart from the first bottom portion 234C and connecting the first bottom portion 234C and the second bottom portion 234E. It may include a wall portion 234F. The wall portion 234F extends from the first bottom portion 234C in a direction (eg, thickness direction) intersecting the expansion direction (eg, radial direction) of the first bottom portion 234C, and the second bottom portion 234E ) may extend in a direction (eg, a radial direction) crossing the extension direction of the wall portion 234F. In one embodiment, the second bottom portion 234E may be located in a substantially central region of the second rim 234A. The second bottom portion 234E and wall portion 234F may, for example, form a flow space for airflow with one side (eg, lower surface) of the aerosol-generating article 201 upon insertion thereof. can

In one embodiment, the wall portion 234F may include a plurality of second airflow holes H2. The plurality of second air flow holes H2 are configured to communicate with the outside of the second frame 234A, and the air flow outside the second frame 234A flows on the wall portion 234F and the second bottom portion 234E. It can move through space. For example, the plurality of second airflow holes H2 may allow the airflow passing through the plurality of third airflow passages 236B and the plurality of first airflow holes H1 to flow into the flow space. The airflow flowing into the flow space can be guided to one side (eg, the bottom) of the aerosol-generating article 201 along the second bottom portion 234E and wall portion 234F.

The aerosol-generating device 200 may include a pressure sensor 240 configured to sense the pressure of the airflow between the article insert 220 and the second housing 230 . The pressure sensor 240 may detect, for example, a change in pressure of the air flow according to a change in speed of the air flow when the air flow is introduced through the product insertion unit 220 . In one embodiment, the pressure sensor 240 may be located within the first housing 210 and on the flow stream between the article insert 220 and the second housing 230 . In some embodiments, pressure sensor 240 may be positioned adjacent to first surface 210A. In some embodiments, the pressure sensor 240 may be positioned on the flow stream between the plurality of insert airflow passages 224 and the plurality of primary airflow passages 232B. In some embodiments, the aerosol-generating device 200 may include a plurality of pressure sensors 240.

Referring to FIG. 10 , the aerosol generating device 1 includes a battery 11, a controller 12 and a heater 13. Referring to FIGS. 11 and 12 , the aerosol generating device 1 further includes a vaporizer 14 . In addition, an aerosol-generating article 2 (eg, a cigarette) may be inserted into the inner space of the aerosol-generating device 1 .

Components related to the present embodiment are shown in the aerosol generating device 1 shown in FIGS. 10 to 12 . Therefore, those skilled in the art can understand that other general-purpose components other than those shown in FIGS. 10 to 12 may be further included in the aerosol generating device 1. .

11 and 12 show that the aerosol generating device 1 includes the heater 13, but the heater 13 may be omitted if necessary.

10 shows that the battery 11, the controller 12 and the heater 13 are arranged in a line. In addition, FIG. 11 shows that the battery 11, the controller 12, the vaporizer 14, and the heater 13 are arranged in a line. 12 also shows that the vaporizer 14 and the heater 13 are arranged in parallel. However, the internal structure of the aerosol generating device 1 is not limited to that shown in FIGS. 10 to 12 . 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 aerosol-generating article 2 is inserted into the aerosol-generating device 1 , the aerosol-generating device 1 may activate the heater 13 and/or the vaporizer 14 to generate an aerosol. The aerosol generated by the heater 13 and/or vaporizer 14 passes through the aerosol-generating article 2 and is delivered to the user.

If desired, the aerosol-generating device 1 may heat the heater 13 even when the aerosol-generating article 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 aerosol-generating article 2 Can be heated outside.

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 arranged to be inserted inside the aerosol generating article 2 or may be arranged outside the aerosol generating article 2 . Also, some of the plurality of heaters 13 may be arranged to be inserted inside the aerosol-generating article 2 and others may be arranged outside the aerosol-generating article 2 . In addition, the shape of the heater 13 is not limited to the shape shown in FIGS. 10 to 12 and may be manufactured in various shapes.

Vaporizer 14 may heat the liquid composition to generate an aerosol, which may pass through aerosol-generating article 2 and be delivered to a 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 aerosol generating article 2 is inserted.

Although not shown in FIGS. 10 to 12 , 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.

The aerosol-generating article 2 may be similar to a conventional combustion cigarette. For example, the aerosol-generating article 2 can be divided into a first part comprising the aerosol-generating material and a second part comprising a filter or the like. Alternatively, the second portion of the aerosol-generating article 2 may also contain an aerosol-generating material. 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 interior of the aerosol-generating article 2 through at least one hole formed in a surface of the aerosol-generating article 2 .

Referring to FIG. 13 , the aerosol generating article 2 includes a tobacco rod 21 and a filter rod 22 . The first portion 21 described above with reference to FIGS. 10 to 12 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. 13, 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 aerosol-generating article 2 can have a diameter in the range of 5 mm to 9 mm and a length of 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.

The aerosol-generating article 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 aerosol-generating article 2 may be wrapped by a single wrapper 24 . As another example, the aerosol-generating article 2 may be overlappingly wrapped by two or more wrappers 24 . For example, the tobacco rod 21 may be wrapped by the first wrapper 241, and the filter rod 22 may be wrapped by the wrappers 242, 243, and 244. And, the entire aerosol-generating article 2 can be re-wrapped 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 . 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, etc. 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 preferably may be 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 aerosol-generating article 2 from burning. For example, if the tobacco rod 210 is heated by the heater 13, there is a possibility that the aerosol-generating article 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 aerosol-generating article 2 may be combusted. Even in this case, since the fifth wrapper 245 includes an incombustible material, burning of the aerosol-generating article 2 can be prevented.

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

The tobacco 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 vary depending on the shape of the aerosol-generating article 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. 14 , the aerosol-generating article 3 may further comprise 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. 10 to 12) 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. 13, and the second segment 322 may correspond to the third segment of the filter rod 22 of FIG. can

The diameter and overall length of the aerosol-generating article 3 may correspond to the diameter and overall length of the aerosol-generating article 2 of FIG. 13 . 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 aerosol-generating article 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. Then, the entire aerosol-generating article 3 can be re-wrapped 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. 11 and 12 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. 13 . 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.

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.

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

Claims (15)

a first housing; and
a second housing positioned in the first housing and configured to receive an aerosol-generating article;
including,
The second housing,
a first layer including a first rim having a first circumference and a first width, and a plurality of first airflow passages formed on the first rim; and
a second layer comprising a second rim connected to the first rim and having a second circumference and a second width, and a second airflow passage formed by the second rim and in fluid communication with a plurality of first airflow passages;
An aerosol generating device comprising a. According to claim 1,
The aerosol generating device of claim 1 , wherein the plurality of first air flow passages are formed to be recessed in a first width of the first edge. According to claim 1,
The plurality of first airflow passages are arranged at substantially equal intervals along a first circumference of the first rim. According to claim 1,
The aerosol generating device of claim 1, wherein the second air flow passage is a single air flow passage. According to claim 1,
wherein the second layer further comprises a susceptor positioned within the second rim and defining the second airflow passage with the second rim and configured to at least partially receive the aerosol-generating article. According to claim 1,
The second housing includes a third rim connected to the second rim and having a third circumference and a third width, and a plurality of third air passages formed in the third rim and in fluid communication with the second air passages. An aerosol-generating device further comprising a third layer to According to claim 6,
The plurality of third air passages are formed to be recessed in a third width of the third edge. According to claim 6,
The plurality of third air passages are arranged at substantially equal intervals along the third circumference of the third rim. According to claim 6,
The third layer further includes a plurality of recesses positioned between a pair of adjacent third airflow passages and formed in a thickness direction of the third edge crossing the third circumference and the third width, respectively. Aerosol generating device. According to claim 6,
wherein the second layer further comprises a first bottom portion connected to the second rim and configured to support the third rim. According to claim 10,
wherein said first bottom portion comprises a plurality of first airflow holes in fluid communication with said plurality of third airflow passages. According to claim 11,
The second layer,
a wall portion connected to the first bottom portion and including a plurality of second airflow holes; and
a second bottom portion connected to the wall portion and configured to guide an airflow to the aerosol-generating article;
An aerosol generating device further comprising a. According to claim 1,
The second housing is in fluid communication with the plurality of first airflow passages and a plurality of fixtures connected to the first rim and positioned opposite the second rim and configured to secure the aerosol-generating article. The aerosol-generating device further comprising an article insertion portion including a plurality of insertion portion air flow passages formed between the plurality of fixing portions. According to claim 13,
The aerosol-generating device is configured to hermetically seal the first housing so that air is introduced into the second housing only through the plurality of insert airflow passages. A housing for an aerosol generating device,
a first layer including a first rim having a first circumference and a first width, and a plurality of first airflow passages formed on the first rim;
a second layer comprising a second rim connected to the first rim and having a second circumference and a second width, and a second airflow passage formed by the second rim and in fluid communication with a plurality of first airflow passages; and
a third layer including a third rim connected to the second rim and having a third circumference and a third width, and a plurality of third air passages formed in the third rim and in fluid communication with the second air passages;
A housing comprising a.

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