KR20230078188A - Device and system for generating aerosol - Google Patents

Abstract

An aerosol-generating device according to various embodiments includes a first housing and a first end face, a second end face opposite the first end face, located in the first housing and configured to receive an aerosol-generating article; and an article insert having a length and a circumference and including an inner face between the first end face and the second end face, wherein the article insert comprises: a first end positioned on the inner face; each comprising a second end positioned on the inner surface away from the first end along its length, and an extension extending between the first end and the second end and having a variable width along the length of the inner surface; and at least one airflow passage formed between a plurality of fixing parts arranged along a circumference of the inner surface and the extension parts, wherein the at least one airflow passage is formed between adjacent first ends of the plurality of fixing parts. It may include the at least one airflow passage having a first width of, and a second width between adjacent second ends of the plurality of fixing parts different from the first width.

Description

Aerosol generating device and system {DEVICE AND SYSTEM FOR GENERATING AEROSOL}

Various embodiments below relate to aerosol-generating devices and systems.

Techniques are being developed to introduce airflow into an aerosol-generating article to achieve atomization performance. 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 and system according to various embodiments may improve the efficiency of airflow inflow.

An aerosol-generating device according to various embodiments includes a first housing and a first end face, a second end face opposite the first end face, located in the first housing and configured to receive an aerosol-generating article; and an article insert having a length and a circumference and including an inner face between the first end face and the second end face, wherein the article insert comprises: a first end positioned on the inner face; each comprising a second end positioned on the inner surface away from the first end along its length, and an extension extending between the first end and the second end and having a variable width along the length of the inner surface; and at least one airflow passage formed between a plurality of fixing parts arranged along a circumference of the inner surface and the extension parts, wherein the at least one airflow passage is formed between adjacent first ends of the plurality of fixing parts. It may include the at least one airflow passage having a first width of, and a second width between adjacent second ends of the plurality of fixing parts different from the first width.

In one embodiment, the first end may be located adjacent to the first end face, and the second end may lead to the second end face.

In one embodiment, the first width may be greater than the second width.

In one embodiment, the first end may have an inclined surface with respect to the inner surface.

In one embodiment, the extension may have a substantially linear profile between the first end and the second end.

In one embodiment, the extension part may protrude from the inner surface in a direction that crosses the longitudinal direction and the circumferential direction of the inner surface, respectively.

In one embodiment, a protruding length of the extension portion may be substantially constant between the first end and the second end.

In one embodiment, the plurality of fixing parts may be arranged at substantially equal intervals along the circumference of the inner surface.

In one embodiment, the airflow passage may be configured to introduce air into the first housing.

In one embodiment, the aerosol-generating device may further include a pressure sensor configured to recognize airflow on the airflow passage.

In one embodiment, the first housing may be configured to be sealed so that air is introduced into the article insertion part only through the at least one airflow passage.

In an embodiment, the aerosol-generating device may further include a second housing configured to communicate with the at least one airflow passage and configured to receive the aerosol-generating article and heat the aerosol-generating article.

In one embodiment, the first end may lead to the first end face, and the second end may lead to the second end face.

In one embodiment, the first end may have a surface substantially coplanar with the first end surface.

An aerosol-generating system according to various embodiments includes an aerosol-generating device comprising an aerosol-generating article and a first housing and an article insert positioned in the first housing and configured to receive the aerosol-generating article, comprising: an article insert; The portion includes a first end face, a second end face opposite the first end face, and an inner face between the first end face and the second end face having a length and a circumference, the article insert comprising: a first end located on the inner surface, a second end located on the inner surface away from the first end along the length of the inner surface, and a second end located on the inner surface between the first and second ends A plurality of fixing parts arranged along the circumference of the inner surface, and at least one air flow passage formed between the extension parts, each including an extension part extending with a variable width along the length of the at least one The airflow passage has a first width between adjacent first ends of the plurality of fixtures, and a second width between adjacent second ends of the plurality of fixtures different from the first width. It may include an airflow passage.

According to various embodiments, aerosol inhalation performance may be improved. According to various embodiments, detection performance of aerosol-generating articles may be improved. According to various embodiments, the retention of an aerosol-generating article within an aerosol-generating device may be improved. Effects of the aerosol generating device and system 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 an aerosol generating system viewed in one direction according to an embodiment.
5 is a perspective view of an article insertion part of the aerosol generating device according to an embodiment.
6 is a plan view of an article insertion part of the aerosol generating device according to an embodiment.
7 is a radial view of an article insertion part of the aerosol generating device according to an embodiment.
8 is a perspective view of an article insertion part of an aerosol generating device according to another embodiment.
9 is a plan view of an article insertion part of an aerosol generating device according to another embodiment.
10 is a radial view of an article insertion part of an aerosol generating device according to another embodiment.
11 to 13 are views illustrating examples in which an aerosol generating article (eg, cigarette) is inserted into an aerosol generating device according to an embodiment.
14 and 15 illustrate examples of aerosol-generating articles (eg, cigarettes) according to one 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.

2-7 , 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. The article insert 220 includes a first end face 220A (eg, an upper end face), a second end face 220B opposite the first end face 220A (eg, a lower end face), and a second end face 220B (eg, a lower end face). and an inner face 220C between the first end face 220A and the second end face 220B. In one embodiment, the first end face 220A can be substantially coplanar with the first face 210A of the first housing 210 and the second end face 220B is the first housing 210 ) can be located within. In one embodiment, inner face 220C may have a substantially curved profile. In some embodiments, the article insertion portion 220 may have a shape (eg, a hollow cylindrical shape) having a length and a circumference.

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. At least one (eg, four) airflow passages 224 may be formed. In one embodiment, the plurality of fixtures 222 may be configured to contact and/or press against one side (eg, side) of the aerosol-generating article 201 . In one embodiment, the at least one airflow passage 224 may introduce air into the first housing 210 (eg, into the second housing 230) only through the at least one airflow passage 224. there is. 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 at least one air flow passage 224 .

The plurality of fixing parts 222 include a first end 222A (eg, an upper end) positioned on the inner face 220C, and a second end positioned on the inner face 220C apart from the first end 222A. It may each include an end 222B (eg, a lower end) and an extension 222C extending along the length of the inner face 220C between the first end 222A and the second end 222B. Extensions 222C of the plurality of fixing parts 222 may be arranged along the circumferential direction of the inner surface 220C. In one embodiment, the extension parts 222C of the plurality of fixing parts 222 may be arranged at substantially equal intervals. In another embodiment, the distance between any one pair of extension parts 222C among the extension parts 222C of the plurality of fixing parts 222 may be different from the distance between the other pair of extension parts 222C. there is.

In one embodiment, the first end 222A may have an inclined surface relative to the inner surface 220C. In one embodiment, the first end 222A may be positioned adjacent to the first end face 220A. The first end 222A may be spaced apart from the first end face 220A by a predetermined distance D1 (eg, about 2.5 mm).

In one embodiment, the second end 222B may follow the second end face 220B. In some embodiments, the second end 222B can be substantially coplanar with the second end face 220B.

In one embodiment, the extension portion 222C may protrude in a direction (eg, a radial direction) crossing each of the longitudinal direction and the circumferential direction of the inner surface 220C. The second side surface 223B of the extension part 222C of one fixing part 222 is connected to the second side surface 223B of the extension part 222C of the other fixing part 222 facing it. An airflow passage 224 may be formed.

In one embodiment, extension 222C may have a substantially constant protruding length from inner surface 220C. For example, the first side surface 223A may be substantially parallel to the inner surface 220C when viewed in the longitudinal direction of the inner surface 220C.

In one embodiment, the extension 222C may include a first side surface 223A (eg, a radial side surface) having a normal direction substantially the same as that of the inner surface 220C and spaced apart from the inner surface 220C. ), and a plurality of second side surfaces 223B connecting the inner surface 220C and the first side surface 223A and having a normal direction intersecting the normal direction of the inner surface 220C (eg, circumferential side surface) ) can have

In some embodiments, the extension 222C may have a first chamfer surface 223C between the first end 222A and the first side surface 223A. In some embodiments, the extension part 222C may have a plurality of second chamfer faces 223D between the plurality of second side faces 223A and the inner face 220C.

In one embodiment, the plurality of fixing parts 222 may have a variable shape along the length of the inner surface 220C. For example, extension 222C may have a width that varies between first end 222A and second end 222B. The airflow passage 224 has a first width W1 (for example, about 2.5 mm) between the first ends 222A of the pair of adjacent fixing parts 222, and the first width W1 and It may have a second width W2 (eg, about 2.2 mm) between the second ends 222B of another pair of adjacent fixing parts 222 . The variable shape of the air flow passage 224 induces the inflow of a large amount of air flow through the air flow passage 224 and increases the air flow inflow efficiency, thereby increasing aerosol generation efficiency. As another example, the variable shape of the air flow passage 224 may cause a variable pressure of the air flow introduced according to Bernoulli's principle and increase the recognition rate of the sensor (eg, the pressure sensor 240).

In an embodiment, the first width W1 may be greater than the second width W2. In the longitudinal direction of the inner surface 220C, for example, in the direction in which the aerosol-generating article 201 is inserted, the airflow passages 224 having a decreasing width can introduce airflow at an increased velocity according to Bernoulli's principle. there is.

In one embodiment, a pair of adjacent second side surfaces 223B forming the airflow passage 224 may have a substantially linear profile along the length of the inner surface 220C. In some embodiments, a pair of adjacent second side surfaces 223B forming the airflow passage 224 may have a substantially curved profile along the length of the inner surface 220C.

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 a plurality of airflow passages. For example, the second housing 230 may include a first layer 232 having at least one air flow passage in fluid communication with the article insert 220, a first layer 232 connected to the first layer 232, and the first layer 232 a second layer (234) having at least one airflow passageway in fluid communication with at least one airflow passageway in the second layer (234), and at least one airflow passageway positioned within the second layer (234) and in fluid communication with the at least one airflow passageway in the second layer (234). It may include a third layer 236 having an air flow passage of.

In one embodiment, the dimension (eg, diameter) of the first layer 232 may be substantially equal to or smaller than the dimension (eg, diameter) of the second layer 234 . In one embodiment, the dimension (eg, diameter) of the second layer 234 may be substantially equal to or greater than the dimension (eg, diameter) of the third layer 236 .

In one embodiment, the second layer 234 is connected to the side portion 234A, and the third layer 236 and/or one side of the aerosol-generating article 201 (e.g., bottom). surface) may include a first bottom portion 234B configured to support it. In some embodiments, the second layer 234 comprises a second bottom portion 234C spaced apart from the first bottom portion 234B and connecting the first bottom portion 234B and the second bottom portion 234C. It may include a wall portion 234D. The second bottom portion 234C and wall portion 234D may form passages for guiding airflow to one side (eg, bottom side) of the aerosol-generating article 201 . In some embodiments, a dimension (eg, diameter) of side portion 234A may be substantially equal to or greater than a dimension (eg, diameter) of wall portion 234D.

In one embodiment, the first bottom portion 234B has at least one airflow hole in fluid communication with at least one airflow passage in the third layer 236, and the wall portion 234D is the first bottom portion 234B. It may have at least one air flow hole into which air flow passing through the at least one air flow hole is introduced.

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 on the third layer 236 and extend along the side portion 234A of the second layer 234 .

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 aerosol-generating device 200 may include a plurality of pressure sensors 240.

8 to 10, the aerosol generating device 300 (eg, the aerosol generating device 200 of FIGS. 2 to 7) according to an embodiment includes a housing 310 (eg, the first housing 210). )), and an article insertion unit 320 (eg, the article insertion unit 220).

The article insert 320 includes a first end face 320A (eg, first end face 220A), a second end face 320B (eg, second end face 220B), and an inner face ( 320C) (eg, inner surface 220C).

The article insertion unit 320 includes a plurality of (eg, four) fixing parts 322 (eg, fixing parts 222), and at least one (eg, four) airflow passages 324 (eg, : An air flow passage 224) may be included.

The plurality of fixing parts 322 include a first end 322A (eg, the first end 222A), a second end 322B (eg, the second end 222B), and an extension 322C ( Example: An extension part 222C) may be included. The extension part 322C may include a first side surface 323A (eg, the first side surface 223A) and a plurality of second side surfaces 323B (eg, the second side surface 223B). can

In one embodiment, the first end 322A may lead to the first end face 320A. The first end 322A may be spaced apart from the first end face 320A by a predetermined distance D2 (eg, about 0.5 mm). In some embodiments, the first end 322A can be substantially coplanar with the first end face 320A.

In one embodiment, the extension 322C may have a variable width between the first end 322A and the second end 322B. The air flow passage 324 has a first width W1 (for example, about 2.5 mm) between the first ends 322A of the pair of adjacent fixing parts 322, and the first width W1 and It may have a second width W2 (eg, about 1.2 mm) between the second ends 322B of another pair of adjacent fixing parts 322 .

Referring to FIG. 11 , the aerosol generating device 1 includes a battery 11, a controller 12 and a heater 13. Referring to FIGS. 12 and 13 , 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 .

In the aerosol generating device 1 shown in FIGS. 11 to 13, 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 the components shown in FIGS. 11 to 13 may be further included in the aerosol generating device 1. .

In addition, although FIGS. 12 and 13 show that the aerosol generating device 1 includes the heater 13, the heater 13 may be omitted if necessary.

11 shows that the battery 11, the controller 12, and the heater 13 are arranged in a line. 7 shows that the battery 11, the controller 12, the vaporizer 14, and the heater 13 are arranged in a line. Also, in FIG. 10, 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. 11 to 13 . 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. 11 to 13 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. 11 to 13, 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. 14 , the aerosol generating article 2 includes a tobacco rod 21 and a filter rod 22 . The first part 21 described above with reference to FIGS. 11 to 13 includes a tobacco rod 21 , and the second part 22 includes a filter rod 22 .

Although filter rod 22 is shown as a single segment in FIG. 14, 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 external 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. 15 , 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. 11 to 13) 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. 14, 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. 14 . 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. 12 and 13 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. 14 . 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
positioned in the first housing, configured to receive an aerosol-generating article, and having a first end face, a second end face opposite the first end face, and a length and a circumference, wherein the first end face and the second end face an article insert comprising an inner face between end faces;
including,
The article insertion part,
a first end located on the inner surface, a second end located on the inner surface away from the first end along the length of the inner surface, and a second end located on the inner surface between the first and second ends a plurality of fixing parts arranged along the circumference of the inner surface, each including an extension part extending and having a variable width along the length of the; and
at least one air flow passage formed between the extensions, the at least one air flow passage having a first width between adjacent first ends of the plurality of fixing parts, and a width of the plurality of fixing parts different from the first width; the at least one airflow passage having a second width between adjacent second ends;
Aerosol generating device comprising a. According to claim 1,
The aerosol-generating device of claim 1 , wherein the first end is positioned adjacent the first end face and the second end extends to the second end face. According to claim 1,
The aerosol-generating device of claim 1 , wherein the first width is greater than the second width. According to claim 1,
The aerosol-generating device of claim 1 , wherein the first end has an inclined surface relative to the inner surface. According to claim 1,
The aerosol-generating device of claim 1 , wherein the extension has a substantially linear profile between the first end and the second end. According to claim 1,
The aerosol generating device of claim 1 , wherein the extension protrudes from the inner surface in directions crossing longitudinal and circumferential directions of the inner surface, respectively. According to claim 6,
The protruding length of the extension is substantially constant between the first end and the second end. According to claim 1,
The plurality of fixing parts are arranged at substantially equal intervals along the circumference of the inner surface. According to claim 1,
The aerosol-generating device of claim 1 , wherein the airflow passage is configured to introduce air into the first housing. According to claim 1,
The aerosol-generating device further comprises a pressure sensor configured to recognize airflow on the airflow passage. According to claim 1,
The aerosol-generating device is configured to seal the first housing such that air is introduced into the article insert only through the at least one air flow passage. According to claim 1,
an aerosol-generating device further comprising a second housing configured to communicate with the at least one airflow passageway and configured to receive the aerosol-generating article and heat the aerosol-generating article. According to claim 1,
The aerosol-generating device of claim 1 , wherein the first end extends to the first end face and the second end extends to the second end face. According to claim 1,
The aerosol-generating device of claim 1 , wherein the first end has a face that is substantially coplanar with the first end face. aerosol generating articles; and
an aerosol-generating device comprising a first housing and an article insert positioned in the first housing and configured to receive the aerosol-generating article;
including,
the article insert includes a first end face, a second end face opposite the first end face, and an inner face between the first end face and the second end face, the inner face having a length and a circumference;
The article insertion part,
a first end located on the inner surface, a second end located on the inner surface away from the first end along the length of the inner surface, and a second end located on the inner surface between the first and second ends a plurality of fixing parts arranged along the circumference of the inner surface, each including an extension part extending and having a variable width along the length of the; and
at least one air flow passage formed between the extensions, the at least one air flow passage having a first width between adjacent first ends of the plurality of fixing parts, and a width of the plurality of fixing parts different from the first width; the at least one airflow passage having a second width between adjacent second ends;
An aerosol-generating system comprising a.

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