KR20230055912A - Aerosol generating device and method thereof - Google Patents

Abstract

An aerosol-generating device and an operating method thereof are disclosed. The aerosol-generating device of the present invention comprises: a heater heating an aerosol-generating material; a resistance detection sensor outputting a signal corresponding to a resistance value of the heater; a puff sensor sensing a puff; and a control unit determining the resistance value of the heater based on a signal of the resistance detection sensor. The control unit may determine an initial resistance value of the heater based on the insertion of a stick into an insertion space, heat the heater based on a preset temperature profile on the basis of the fact that the puff is detected through the puff sensor, determine whether the initial resistance value is to be changed based on the temperature of the heater calculated based on the initial resistance value and a preset temperature range corresponding to heating of the heater, and change the initial resistance value according to a difference between the calculated temperature of the heater and the preset reference temperature based on the determination for changing the initial resistance value. The initial resistance value of the heater can be updated.

Description

Aerosol generating device and its operating method {AEROSOL GENERATING DEVICE AND METHOD THEREOF}

The present disclosure relates to an aerosol generating device and an operating method thereof.

Aerosol generating devices are for extracting certain components from a medium or substance through an aerosol. The medium may contain materials of various components. Substances included in the medium may be flavor substances of various components. For example, the substance included in the medium may include a nicotine component, an herbal component, and/or a coffee component. Recently, many studies on these aerosol generating devices have been conducted.

The present disclosure aims to solve the foregoing and other problems.

Another object may be to provide an aerosol generating device capable of updating an initial resistance value of a heater based on a temperature of the heater in a heating section and an operating method thereof.

Another object may be to provide an aerosol generating device capable of constantly generating aerosol in a heating section by updating an initial resistance value of a heater and an operating method thereof.

Another object may be to provide an aerosol generating device and an operating method capable of accurately determining whether an aerosol generating material is exhausted in a preheating section.

An aerosol generating device according to an aspect of the present disclosure for achieving the above object includes a heater for heating an aerosol generating material; a resistance detection sensor outputting a signal corresponding to the resistance value of the heater; A puff sensor for detecting a puff; and a controller configured to determine a resistance value of the heater based on a signal from the resistance detection sensor, wherein the controller determines an initial resistance value of the heater based on insertion of a stick into an insertion space, and the puff Based on the detection of the puff through the sensor, the heater is heated based on a preset temperature profile, the temperature of the heater calculated based on the initial resistance value, and a preset temperature range corresponding to the heating of the heater Based on, it is determined whether to change the initial resistance value, and based on the determination to change the initial resistance value, the initial resistance value may be changed according to a difference between the calculated temperature of the heater and a preset reference temperature. there is.

In order to achieve the above object, a method of operating an aerosol generating device according to an aspect of the present disclosure includes a resistance detection sensor outputting a signal corresponding to a resistance value of a heater based on insertion of a stick into an insertion space, determining an initial resistance value of the heater; Heating a heater based on a preset temperature profile based on the detection of the puff through the puff sensor; determining whether to change the initial resistance value based on the temperature of the heater calculated based on the initial resistance value and a preset temperature range corresponding to heating of the heater; and based on the determination to change the initial resistance value, changing the initial resistance value according to a difference between the calculated temperature of the heater and a predetermined reference temperature.

According to at least one of the embodiments of the present disclosure, the initial resistance value of the heater may be updated based on the temperature of the heater in the heating section.

According to at least one of the embodiments of the present disclosure, an aerosol may be constantly generated in a heating section by updating an initial resistance value of the heater.

According to at least one of the embodiments of the present disclosure, it is possible to accurately determine whether or not the aerosol generating material is exhausted in the heating section.

Additional scope of applicability of the present disclosure will become apparent from the detailed description that follows. However, since various changes and modifications within the spirit and scope of the present disclosure may be clearly understood by those skilled in the art, it should be understood that the detailed description and specific embodiments such as the preferred embodiments of the present disclosure are given by way of example only.

Figure 1 is. It is a block diagram of an aerosol generating device according to an embodiment of the present disclosure.
2 to 4 are. These drawings are referenced in the description of the aerosol generating device according to the embodiments of the present disclosure.
5 to 7 are. These drawings are referenced in the description of the stick according to the embodiments of the present disclosure.
8 and 9 are flow charts illustrating an operating method of an aerosol generating device according to an embodiment of the present disclosure.
10 to 13 are views referenced for description of the operation of the aerosol generating device according to an embodiment of the present disclosure.

Hereinafter, embodiments disclosed herein will be described in detail with reference to the accompanying drawings. Regardless of the reference numerals, the same or similar components are given the same reference numerals, and overlapping descriptions thereof will be omitted.

The suffixes "module" and "unit" for components used in the following description may be given or used interchangeably in consideration of ease of writing the specification. "Module" and "unit" do not have meanings or roles distinct from each other by themselves.

In addition, in describing the embodiments disclosed in this specification, if it is determined that a detailed description of a related known technology may obscure the gist of the embodiment disclosed in this specification, the detailed description thereof will be omitted. In addition, the accompanying drawings are only for easy understanding of the embodiments disclosed in this specification, and the technical ideas disclosed in this specification are not limited by the accompanying drawings. It should be understood that the accompanying drawings include all modifications, equivalents or substitutes included in the spirit and scope of the present disclosure.

Terms including ordinal numbers, such as first and second, may be used to describe various components. However, the components are not limited by the terms. These terms are only used for the purpose of distinguishing one component from another.

When an element is referred to as being “connected” or “connected” to another element, it may be directly connected or connected to the other element. However, it should be understood that other components may exist in the middle. On the other hand, when an element is referred to as “directly connected” or “directly connected” to another element, it should be understood that no other element exists in the middle.

Singular expressions include plural expressions unless the context clearly dictates otherwise.

Figure 1 is. It is a block diagram of an aerosol generating device according to an embodiment of the present disclosure.

Referring to FIG. 1, the aerosol generating device 10 includes a communication interface 11, an input/output interface 12, an aerosol generating module 13, a memory 14, a sensor module 15, a battery 16, and/or Alternatively, the controller 17 may be included.

In one embodiment, the aerosol generating device 10 may be composed of only the main body. In this case, components included in the aerosol generating device 10 may be located in the main body. In another embodiment, the aerosol generating device 10 may be composed of a main body and a cartridge holding an aerosol generating material. In this case, components included in the aerosol generating device 10 may be located on at least one of the main body and the cartridge.

The communication interface 11 may include at least one communication module for communication with an external device and/or network. For example, the communication interface 11 may include a communication module for wired communication such as universal serial bus (USB). For example, the communication interface 11 may include a communication module for wireless communication such as WiFi (wireless fidelity), Bluetooth, Bluetooth Low Energy (BLE), Zigbee, and NFC (near field communication). can

The input/output interface 12 may include an input device for receiving a command from a user and/or an output device for outputting information to the user. For example, the input device may include a touch panel, physical buttons, and a microphone. For example, the output device outputs tactile information such as a display device, a display device that outputs visual information such as a light emitting diode (LED), an audio device that outputs auditory information such as a speaker and a buzzer, and a haptic effect. It may include a motor that does.

The input/output interface 12 may transfer data corresponding to a command input from a user through an input device to other component(s) of the aerosol generating device 10 . The input/output interface 12 may output information corresponding to data received from the other component(s) of the aerosol generating device 10 through an output device.

The aerosol generating module 13 may generate an aerosol from an aerosol generating material. Here, the aerosol-generating material may refer to any one material or a combination of two or more materials in various states such as a liquid state, a solid state, and a gel state capable of generating an aerosol.

The liquid aerosol-generating material may be, according to one embodiment, a liquid comprising a tobacco-containing material comprising a volatile tobacco flavor component. The liquid aerosol generating material may be a liquid comprising a non-tobacco material according to another embodiment. For example, liquid aerosol-generating substances may include water, solvents, nicotine, plant extracts, fragrances, flavoring agents, vitamin mixtures, and the like.

Solid-state aerosol-generating materials may include solid materials based on tobacco raw materials, such as leafy leaf sheets, cut fillers, and granules. In addition, the solid-state aerosol-generating material may include a solid material including a taste control agent, a flavoring material, and the like. For example, the taste control agent may include calcium carbonate, sodium hydrogen carbonate, calcium oxide and the like. For example, the fragrance material may include natural materials such as herbal granules, or silica, zeolite, and dextrin including fragrance components.

In addition, the aerosol generating material may further include an aerosol former such as glycerin or propylene glycol.

The aerosol generating module 13 may include at least one heater.

The aerosol generating module 13 may include an electrical resistive heater. For example, an electrical resistive heater may include at least one electrically conductive track. An electrical resistive heater can be heated by a current flowing through an electrically conductive track. At this time, the aerosol generating material may be heated by the heated electrical resistive heater.

The electrically conductive track may include an electrically resistive material. As an example, the electrically conductive track may be formed of a metallic material. As another example, the electrically conductive tracks may be formed of a ceramic material, carbon, a metal alloy, or a combination of a ceramic material and a metal.

The electrical resistive heater may include electrically conductive tracks formed in various shapes. For example, the electrically conductive track may be formed in any one of a tubular shape, a plate shape, a needle shape, a rod shape, and a coil shape.

The aerosol generating module 13 may include a heater using an induction heating method. For example, an induction heating type heater may include an electrically conductive coil. The induction heating type heater may generate an alternating magnetic field whose direction is periodically changed by adjusting the current flowing through the electrically conductive coil. In this case, when an alternating magnetic field is applied to the magnetic body, energy loss due to eddy current loss and hysteresis loss may occur in the magnetic body. Also, as the energy lost is released as thermal energy, the aerosol generating material adjacent to the magnetic body may be heated. Here, an object generating heat by a magnetic field may be referred to as a susceptor.

Meanwhile, the aerosol generating module 13 may generate an aerosol from an aerosol generating material by generating ultrasonic vibrations.

The aerosol generating module 13 may be referred to as a cartomizer, an atomizer, a vaporizer, and the like.

The memory 14 may store programs for processing and controlling each signal in the control unit 17 . The memory 14 may store data processed by the controller 17 and data to be processed.

For example, the memory 14 may store application programs designed for the purpose of performing various tasks processable by the control unit 17 . The memory 14 may selectively provide some of the stored application programs upon request of the control unit 17 .

For example, the memory 14 may include the operating time of the aerosol generating device 10, the maximum number of puffs, the current number of puffs, the number of times the battery 16 is charged, the number of times the battery 16 is discharged, at least one temperature profile, Data on the user's suction pattern, data on charging/discharging, and the like may be stored. Here, the puff may mean user's inhalation. Inhalation may refer to a situation in which the user draws into the user's oral cavity, nasal cavity, or lungs through the mouth or nose.

The memory 14 includes volatile memory (eg, DRAM, SRAM, SDRAM, etc.), non-volatile memory (eg, flash memory, hard disk drive (HDD)), solid state drive (Solid-state drive), and the like. state drive; SSD), etc.).

The sensor module 15 may include at least one sensor.

For example, the sensor module 15 may include a sensor for detecting a puff (hereinafter referred to as a puff sensor). In this case, the puff sensor may be implemented by a proximity sensor such as an IR sensor, a pressure sensor, a gyro sensor, an acceleration sensor, a magnetic field sensor, and the like.

For example, the sensor module 15 may include a sensor (hereinafter referred to as a temperature sensor) for sensing the temperature of a heater included in the aerosol generating module 13 and the temperature of an aerosol generating material. At this time, a heater included in the aerosol generating module 13 may serve as a temperature sensor. For example. The electrical resistive material of the heater may be a material having a temperature coefficient of resistance. The sensor module 15 may sense the temperature of the heater by measuring the resistance of the heater, which varies according to the temperature.

For example, when a stick can be inserted into the main body of the aerosol generating device 10, the sensor module 15 may include a sensor (hereinafter referred to as a stick detection sensor) for detecting the insertion of the stick.

For example, when the aerosol generating device 10 includes a cartridge, the sensor module 15 may include a sensor (hereinafter referred to as a cartridge detection sensor) that detects the attachment/detachment, position, etc. of the cartridge to the main body. there is.

At this time, the stick detection sensor and/or the cartridge detection sensor may be implemented by an inductance-based sensor, a capacitive sensor, a resistance sensor, a hall sensor using a hall effect (hall IC), and the like.

For example, the sensor module 15 may include a voltage sensor for detecting voltage applied to a component (eg, battery 16) provided in the aerosol generating device 10 and/or a current sensor for detecting current. can

The battery 16 may supply power used for the operation of the aerosol generating device 10 under the control of the controller 17 . The battery 16 may supply power to other components included in the aerosol generating device 10 . For example, the battery 16 may supply power to a communication module included in the communication interface 11, an output device included in the input/output interface 12, a heater included in the aerosol generating module 13, and the like.

The battery 16 may be a rechargeable battery or a disposable battery. For example, the battery 16 may be a lithium ion battery or a lithium polymer (Li-Polymer) battery, but is not limited thereto. For example, when the battery 16 can be charged, the charge rate (C-rate) of the battery 16 may be 10C and the discharge rate (C-rate) may be 10C to 20C, but is not limited thereto. In addition, for stable use, the battery 16 may be manufactured so that 80% or more of the total capacity may be secured even when charging/discharging is performed 2000 times.

The aerosol generating device 10 may further include a battery protection module (PCM), which is a circuit for protecting the battery 16. The battery protection module (PCM) may be disposed adjacent to the upper surface of the battery 16 . For example, the battery protection module (PCM), in order to prevent overcharging and overdischarging of the battery 16, when a short circuit occurs in a circuit connected to the battery 16, when an overvoltage is applied to the battery 16 , in the case where an overcurrent flows through the battery 16, the electric path to the battery 16 can be cut off.

The aerosol generating device 10 may further include a charging terminal into which power supplied from the outside is input. For example, a charging terminal may be formed on one side of the main body of the aerosol generating device 10. The aerosol generating device 10 may charge the battery 16 using power supplied through a charging terminal. At this time, the charging terminal may include a wired terminal for USB communication, a pogo pin, and the like.

The aerosol generating device 10 may wirelessly receive power supplied from the outside through the communication interface 11 . For example, the aerosol generating device 10 may receive power wirelessly using an antenna included in a communication module for wireless communication. The aerosol generating device 10 may charge the battery 16 using power supplied wirelessly.

The controller 17 may control the overall operation of the aerosol generating device 10 . The control unit 17 may be connected to each component provided in the aerosol generating device 10. The control unit 17 may transmit and/or receive signals between each component and control the overall operation of each component.

The controller 17 may include at least one processor. The controller 17 may control the overall operation of the aerosol generating device 10 by using a processor. Here, the processor may be a general processor such as a central processing unit (CPU). Of course, the processor may be a dedicated device such as an ASIC or other hardware-based processor.

The controller 17 may perform any one of a plurality of functions of the aerosol generating device 10 . For example, the control unit 17 may perform a plurality of functions of the aerosol generating device 10 ( Example: preheating function, heating function, charging function, cleaning function, etc.) may be performed.

The controller 17 may control the operation of each component provided in the aerosol generating device 10 based on data stored in the memory 14 . For example, the control unit 17 controls the supply of a predetermined power from the battery 16 to the aerosol generating module 13 for a predetermined period of time based on data on the temperature profile, the user's inhalation pattern, etc. stored in the memory 14. You can control it.

The controller 17 may determine whether a puff is present through a puff sensor included in the sensor module 15 . For example, the controller 17 may check a temperature change, a flow change, a pressure change, a voltage change, and the like in the aerosol generating device 10 based on the sensing value of the puff sensor. The control unit 17 may determine whether or not a puff is present according to a result confirmed based on the sensing value of the puff sensor.

The control unit 17 may control the operation of each component provided in the aerosol generating device 10 according to whether or not puffs are puffed and/or the number of puffs. For example, the controller 17 may control the temperature of the heater to be changed or maintained based on the temperature profile stored in the memory 14 .

The control unit 17 may control power supply to the heater to be cut off according to a predetermined condition. For example, when the stick is removed, when the cartridge is separated, when the number of puffs reaches a preset maximum number of puffs, when no puffs are detected for a preset time or more, the remaining capacity of the battery 16 reaches a predetermined value. In the case of less than or equal to, the control unit 17 may control power supply to the heater to be cut off.

The control unit 17 may calculate the remaining capacity of power stored in the battery 16 (hereinafter, remaining power amount). For example, the controller 17 may calculate the amount of remaining power of the battery 16 based on a sensing value of a voltage sensor and/or a current sensor included in the sensor module 15 .

The controller 17 controls power to be supplied to the heater using at least one of a pulse width modulation (PWM) method and a proportional-integral-differential (PID) method. can

For example, the control unit 17 may control a current pulse having a predetermined frequency and duty ratio to be supplied to the heater using a PWM method. At this time, the controller 17 may control power supplied to the heater by adjusting the frequency and duty ratio of the current pulse.

For example, the control unit 17 can determine a target temperature serving as a control target based on the temperature profile. At this time, the control unit 17 uses a PID method, which is a feedback control method through a difference value between the temperature of the heater and the target temperature, a value obtained by integrating the difference value over time, and a value obtained by differentiating the difference value over time. By using it, it is possible to control the power supplied to the heater.

On the other hand, although the PWM method and the PID method have been described as examples of control methods for supplying power to the heater, the present invention is not limited thereto, and a proportional-integral (PI) method, a proportional-derivative (Proportional-Integral) method, Differential, PD) method, etc. may be used in various control methods.

Meanwhile, the controller 17 may control power to be supplied to the heater according to preset conditions. For example, when a cleaning function for cleaning a space into which a stick is inserted is selected according to a command input from a user through the input/output interface 12, the controller 17 may control a predetermined power to be supplied to the heater.

2 to 6 are views referenced for description of an aerosol generating device according to embodiments of the present disclosure.

According to various embodiments of the present invention, the aerosol generating device 10 may include a main body 100 and/or a cartridge 200.

Referring to FIG. 2 , the aerosol generating device 10 according to an embodiment may include a main body 100 configured to allow the stick 20 to be inserted into a space formed by the housing 101 .

The stick 20 may be similar to a conventional combustible cigarette. For example, the stick 20 may be divided into a first part containing an aerosol generating material and a second part including a filter. Alternatively, the aerosol generating material may also be included in the second part of the stick 20 . An aerosol generating material, eg in the form of granules or capsules, may be inserted into the second part.

The entire first part may be inserted into the aerosol generating device 10, 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 10, or parts of the first part and the second part may be inserted. The user may inhale the aerosol while opening the second portion. At this time, the aerosol is generated by passing the external air through the first portion, and the generated aerosol may pass through the second portion and be delivered to the user's mouth.

The main body 100 may be formed in a structure in which external air may be introduced into the main body 100 in a state in which the stick 20 is inserted. At this time, the outside air introduced into the main body 100 may flow into the user's mouth through the stick 20 .

The heater may be disposed at a position within the body 100 corresponding to a position of the stick 20 when the stick 20 is inserted into the body 100 . In this drawing, the heater is shown as being an electrically conductive heater 110 including a needle-shaped electrically conductive track, but the present invention is not limited thereto.

The heater may heat the inside and/or outside of the stick 20 using power supplied from the battery 16 . At this time, aerosol may be generated from the heated stick 20 . At this time, the user may inhale the tobacco-flavored aerosol by inhaling one end of the stick 20 through the mouth.

Meanwhile, the controller 17 may control power to be supplied to the heater according to a preset condition even when the stick 20 is not inserted. For example, when a cleaning function for cleaning a space into which the stick 20 is inserted is selected according to a command input from a user through the input/output interface 12, the control unit 17 may control a predetermined power to be supplied to the heater. there is.

The controller 17 may monitor the number of puffs based on a value sensed by the puff sensor from the time point when the stick 20 is inserted.

The controller 17 may initialize the current number of puffs stored in the memory 14 when the inserted stick 20 is removed.

Referring to FIG. 3 , an aerosol generating device 10 according to an embodiment may include a main body 100 supporting a cartridge 200 and a cartridge 200 holding an aerosol generating material.

The cartridge 200 may be configured to be detachable from the main body 100 according to one embodiment. The cartridge 200 may be integrally formed with the main body 100 according to another embodiment. For example, at least a portion of the cartridge 200 may be inserted into an inner space formed by the housing 101 of the main body 100, and the cartridge 200 may be mounted on the main body 100.

The main body 100 may be formed in a structure in which external air may be introduced into the main body 100 in a state in which the cartridge 200 is inserted. At this time, outside air introduced into the main body 100 may flow into the user's mouth through the cartridge 200 .

The controller 17 may determine whether the cartridge 200 is mounted/detached through a cartridge detection sensor included in the sensor module 15 . For example, the cartridge detection sensor may transmit a pulse current through one terminal connected to the cartridge 200 . In this case, the cartridge detecting sensor may detect whether or not the cartridge 200 is connected based on whether a pulse current is received through the other terminal.

The cartridge 200 may include a heater 210 for heating the aerosol generating material and/or a reservoir 220 for holding the aerosol generating material. For example, a liquid delivery means that impregnates (contains) an aerosol generating material may be disposed inside the reservoir 220 . The electrically conductive track of the heater 210 may be formed into a structure that winds the liquid delivery means. At this time, as the liquid delivery unit is heated by the heater 210, aerosol may be generated. Here, the liquid delivery means may include a wick such as cotton fiber, ceramic fiber, glass fiber, or porous ceramic.

The cartridge 200 may include an insertion space 230 configured to allow the stick 20 to be inserted. For example, the cartridge 200 may include an insertion space formed by an inner wall (not shown) extending in a circumferential direction along a direction in which the stick 20 is inserted. At this time, the insertion space may be formed by opening the inner side of the inner wall vertically. The stick 20 may be inserted into the insertion space 230 formed by the inner wall.

The insertion space into which the stick 20 is inserted may be formed in a shape corresponding to the shape of a portion of the stick 20 inserted into the insertion space. For example, when the stick 20 is formed in a cylindrical shape, the insertion space may be formed in a cylindrical shape.

When the stick 20 is inserted into the insertion space, the outer circumferential surface of the stick 20 is surrounded by an inner wall and may be in contact with the inner wall.

A portion of the stick 20 is inserted into the insertion space 230 of the cartridge 200, and the remaining portion may be exposed to the outside.

The user may inhale the aerosol while holding one end of the stick 20 in the mouth. The aerosol generated by the heater 210 may pass through the stick 20 and be delivered to the user's mouth. At this time, while the aerosol passes through the stick 20, the substance contained in the stick 20 may be added to the aerosol, and the aerosol with the substance added may be inhaled into the user's mouth through one end of the stick 20 there is.

Referring to FIG. 4 , an aerosol generating device 10 according to an embodiment may include a main body 100 supporting a cartridge 200 and a cartridge 200 holding an aerosol generating material. The main body 100 may be configured such that the stick 20 can be inserted into the insertion space 130 .

The aerosol generating device 10 may include a first heater for heating the aerosol generating material stored in the cartridge 200 . For example, when a user inhales one end of the stick 20 through the mouth, aerosol generated by the first heater may pass through the stick 20 . At this time, while the aerosol passes through the stick 20, a flavor may be added to the aerosol. The flavored aerosol may be inhaled into the user's mouth through one end of the stick 20 .

Meanwhile, according to another embodiment, the aerosol generating device 10 includes a first heater for heating the aerosol generating material stored in the cartridge 200 and a second heater for heating the stick 20 inserted into the main body 100. may include each. For example, the aerosol generating device 10 may generate an aerosol by heating the aerosol generating material stored in the cartridge 200 and the stick 20 through the first heater and the second heater, respectively.

5 to 7 are. These drawings are referenced in the description of the stick according to the embodiments of the present disclosure. Detailed descriptions of overlapping contents in FIGS. 5 to 7 will be omitted.

Referring to FIG. 5 , a cigarette 20 according to an embodiment may include a tobacco rod 21 and a filter rod 22 . The first part described above with reference to FIG. 2 may include a tobacco rod 21 . The second part described above with reference to FIG. 2 may include the filter rod 22 .

Although filter rod 22 is shown as a single segment in FIG. 5, 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 first segment that cools the aerosol and a second segment that filters certain components contained in the aerosol. Also, if necessary, the filter rod 22 may further include at least one segment performing other functions.

The diameter of the stick 20 is within the range of 5mm to 9mm, and the length may be about 48mm, 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 length of the filter rod 22 The length of the third segment of may be about 12 mm, but is not limited thereto.

The stick 20 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 stick 20 may be wrapped by one wrapper 24 . As another example, the stick 20 may be overlappingly wrapped by two or more wrappers 24 . For example, the tobacco rod 21 may be wrapped by the first wrapper 241 . For example, the filter rod 22 may be wrapped by wrappers 242 , 243 , and 244 . The tobacco rod 21 and the filter rod 22 wrapped by individual wrappers may be combined. The entire stick 20 may be re-wrapped by the third wrapper 245 . When each of the filter rods 22 is composed of a plurality of segments, each segment may be wrapped by individual wrappers 242, 243, and 244. The entire stick 20 in which segments wrapped by individual wrappers are combined may be re-wrapped by another wrapper.

The first wrapper 241 and the second wrapper 242 may be made of general filter paper. For example, the first wrapper 241 and the second wrapper 242 may be porous wrappers or non-porous wrappers. 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 within a range of 88 g/m 2 to 96 g/m 2 . For example, the basis weight of the third wrapper 243 may be within a 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 120um to 130um. For example, the thickness of the third wrapper 243 may be 125um.

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

The fifth wrapper 245 may be made of sterile paper (MFW). Here, the sterilized paper (MFW) may refer to paper specially manufactured to improve tensile strength, water resistance, smoothness, and the like compared to general paper. For example, the basis weight of the fifth wrapper 245 may be within a range of 57 g/m 2 to 63 g/m 2 . For example, the basis weight of the fifth wrapper 245 may be 60 g/m 2 . Also, the thickness of the fifth wrapper 245 may be within a range of 64um to 70um. For example, the thickness of the fifth wrapper 245 may be 67um.

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 may have 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 coated or coated on the fifth wrapper 245 without limitation.

The fifth wrapper 245 may prevent the stick 20 from burning. For example, when the tobacco rod 21 is heated by the heater 110, there is a possibility that the stick 20 is burned. Specifically, when the temperature rises above the ignition point of any one of the materials included in the tobacco rod 21, the stick 20 may be burned. Even in this case, since the fifth wrapper 245 includes an incombustible material, burning of the stick 20 can be prevented.

In addition, the fifth wrapper 245 may prevent the main body 100 from being contaminated by substances produced in the stick 20 . Liquid substances may be created in the stick 20 by the user's puff. For example, liquid substances (eg, moisture, etc.) may be generated by cooling the aerosol generated in the stick 20 by external air. As the fifth wrapper 245 wraps the stick 20 , liquid substances generated in the stick 20 may be prevented from leaking out of the stick 20 .

The tobacco rod 21 may contain 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 .

The tobacco rod 21 can be manufactured in various ways. For example, the tobacco rod 21 may be made of a sheet. For example, the tobacco rod 21 may be made of a strand. For example, the tobacco rod 21 may be made of a cut filler in which a tobacco sheet is chopped. For example, 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 . This can improve the taste of tobacco. A heat conduction material surrounding the tobacco rod 21 may function as a susceptor to be 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.

The 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. For example, the filter rod 22 may be a tubular rod having a hollow inside. For example, the filter rod 22 may be a recess type rod. When the filter rod 22 is composed of a plurality of segments, at least one of the plurality of segments may be manufactured in a different shape.

The first segment of filter rod 22 may be a cellulose acetate filter. For example, the first segment may be a tube-shaped structure including a hollow therein. When the heater 110 is inserted by the first segment, the internal material of the tobacco rod 21 may be prevented from being pushed back, and a cooling effect of the aerosol may be generated. The diameter of the hollow included in the first segment may be appropriately employed within a range of 2 mm to 4.5 mm, but is not limited thereto.

The length of the first segment may be appropriately employed within a range of 4 mm to 30 mm, but is not limited thereto. For example, the length of the first segment may be 10 mm, but is not limited thereto.

The second segment of the filter rod 22 cools the aerosol produced by the heater 110 heating the tobacco rod 21 . Thus, the user can inhale the aerosol cooled to an appropriate temperature.

The length or diameter of the second segment may be variously determined according to the shape of the stick 20 . 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 may refer to 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.

The filter rod 22 may be manufactured to generate flavor. As an example, flavoring liquid may be sprayed onto the filter rod 22 . As an example, a separate fiber coated with flavoring liquid may be inserted into the filter rod 22 .

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 flavor. The capsule 23 may also function to generate 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. 6 , the stick 30 according to one embodiment may further include a shear plug 33 . The front end plug 33 is 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. The shear plug 33 can prevent the aerosol liquefied from the tobacco rod 31 from flowing into the aerosol generating device 10 during smoking.

The filter rod 32 may include a first segment 321 and a second segment 322 . The first segment 321 may correspond to the first segment of the filter rod 22 of FIG. 5 . The second segment 322 may correspond to the third segment of the filter rod 22 of FIG. 5 .

The diameter and total length of the stick 30 may correspond to the diameter and total length of the stick 20 of FIG. 5 . For example, the length of the shear plug 33 is about 7 mm, the length of the tobacco rod 31 is about 15 mm, the length of the first segment 321 is about 12 mm, and the length of the second segment 322 is about 14 mm. may, but is not limited thereto.

The stick 30 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. Also, the entire stick 30 may 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. For example, the perforation 36 may serve to transfer heat generated by the heater 210 shown in FIG. 3 to the inside of the tobacco rod 31.

In addition, at least one capsule 34 may be included in the second segment 322 . Here, the capsule 34 may also perform a function of generating flavor. The capsule 34 may also perform the 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 within a range of 45um to 55um. For example, the total thickness of the first wrapper 351 may be 50.3um. In addition, the thickness of the metal foil of the first wrapper 351 may be included in the range of 6um to 7um. For example, the thickness of the metal foil of the first wrapper 351 may be 6.3um. In addition, the basis weight of the first wrapper 351 may be included in the range of 50 g/m 2 to 55 g/m 2 . For example, the basis weight of the first wrapper 351 may be 53 g/m2.

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 70um ~ 80um. For example, the thickness of the second wrapper 352 may be 78um. 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 . For example, the basis weight of the second wrapper 352 may be 23.5 g/m2.

For example, the porosity of the third wrapper 353 may be 24000 CU, but is not limited thereto. Also, the thickness of the third wrapper 353 may be within a range of 60um to 70um. For example, the thickness of the third wrapper 353 may be 68um. 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 . For example, the basis weight of the 3 wrappers 353 may be 21 g/m2.

The fourth wrapper 354 may be made of PLA laminate. Here, the PLA laminate may refer to three layers of paper including a paper layer, a PLA layer, and a paper layer. For example, the thickness of the fourth wrapper 354 may be included in the range of 100um to 120um. For example, the thickness of the fourth wrapper 354 may be 110um. In addition, the basis weight of the fourth wrapper 354 may be included in the range of 80 g/m 2 to 100 g/m 2 . For example, the basis weight of the fourth wrapper 354 may be 88 g/m2.

The fifth wrapper 355 may be made of sterile paper (MFW). Here, the sterilized paper (MFW) may refer to paper specially manufactured to improve tensile strength, water resistance, smoothness, and the like compared to general paper. For example, the basis weight of the fifth wrapper 355 may be within a range of 57 g/m 2 to 63 g/m 2 . For example, the basis weight of the fifth wrapper 355 may be 60 g/m2. In addition, the thickness of the fifth wrapper 355 may be included in the range of 64um to 70um. For example, the thickness of the fifth wrapper 355 may be 67um.

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 that does not oxidize, 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 fabricated by adding a plasticizer (eg, triacetin) to cellulose acetate tow. The mono denier of the filaments constituting the cellulose acetate tow may be included in the range of 1.0 to 10.0. For example, the monodenier of the filament constituting the cellulose acetate tow may be included in the range of 4.0 to 6.0. For example, 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. For example, the total denier of the front end plug 33 may be included in the range of 25000 to 30000. For example, 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. The shape of the cross section of the channel of the shear plug 330 can be manufactured in various ways.

The tobacco rod 31 may correspond to the tobacco rod 21 described above with reference to FIG. 5 . 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 tube-shaped 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. For example, the mono denier of the filament of the second segment 322 may be included in the range of 8.0 to 10.0. For example, 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. For example, the total denier of the second segment 322 may be 25000.

Referring to FIG. 7 , the stick 40 may include a medium part 410 . The stick 40 may include a cooling unit 420 . The stick 40 may include a filter unit 430 . The cooling unit 420 may be disposed between the medium unit 410 and the filter unit 430 . Stick 40 may include wrapper 440 . The wrapper 440 may cover the medium unit 410 . The wrapper 440 may cover the cooling unit 420 . The wrapper 440 may cover the filter unit 430 . The stick 40 may have a cylindrical shape.

The medium unit 410 may include a medium 411 . The medium unit 410 may include a first medium cover 413 . The medium unit 410 may include a second medium cover 415 . The medium 411 may be disposed between the first medium cover 413 and the second medium cover 415 . The first medium cover 413 may be disposed on one end of the stick 40 . The medium part 410 may have a length of 24 mm.

The medium 411 may include materials of various components. Substances included in the medium may be flavor substances of various components. Medium 411 may be composed of a plurality of granules. Each of the plurality of granules may have a size of 0.4 mm to 1.12 mm. The medium 411 may be filled with about 70% of granules therein. The medium 411 may have a length L2 of 10 mm. The first medium cover 413 may be made of an acetate material. The second medium cover 415 may be made of an acetate material. The first medium cover 413 may be made of a paper material. The second media cover 415 may be made of a paper material. At least one of the first medium cover 413 and the second medium cover 415 is made of a paper material and is gathered into a corrugated shape, and a plurality of gaps for air to flow may be formed therebetween. The gap may be smaller than the size of each granule of the medium 411 . The length L1 of the first medium cover 413 may be shorter than the length L2 of the medium 411 . The length L3 of the second medium cover 413 may be shorter than the length L2 of the medium 411 . The length L1 of the first medium cover 413 may be 7 mm. The length L2 of the second medium cover 413 may be 7 mm.

Accordingly, each granule of the medium 411 may not be separated from the medium part 410 and the stick 40 .

The cooling unit 420 may have a cylindrical shape. The cooling unit 420 may have a hollow shape. The cooling unit 420 may be disposed between the medium unit 410 and the filter unit 430 . The cooling unit 420 may be disposed between the second medium unit 415 and the filter unit 430 . The cooling unit 420 may be formed in a tubular shape surrounding an internal cooling path 424 . The cooling unit 420 may be thicker than the wrapper 440 . The cooling unit 420 may be made of a thicker paper material than the wrapper 440 . The length L4 of the cooling unit 420 may be the same as or similar to the length L2 of the medium 411 . The length L4 of the cooling part 420 and the cooling path 424 may be 10 mm. When the stick 40 is inserted into the aerosol generating device 10, at least a portion of the cooling unit 420 may be exposed to the outside of the aerosol generating device 10.

Accordingly, the cooling unit 420 supports the medium unit 410 and the filter unit 430, and the rigidity of the stick 40 can be secured. In addition, the cooling unit 420 may support the wrapper 440 between the medium unit 410 and the filter unit 430 and secure an area to which the wrapper 440 may be adhered. In addition, the heated air and aerosol may be cooled while passing through the cooling path 424 inside the cooling unit 420 .

The filter unit 430 may be composed of a filter made of an acetate material. The filter unit 430 may be disposed at the other end of the stick 40. When the stick 40 is inserted into the aerosol generating device 10, the filter unit 430 may be exposed to the outside of the aerosol generating device 10. A user may inhale air while holding the filter unit 430 in his/her mouth. The length L5 of the filter unit 430 may be 14 mm.

The wrapper 440 may surround or surround the medium unit 410 , the cooling unit 420 and the filter unit 430 . The wrapper 440 may configure the outer shape of the stick 40 . The wrapper 440 may be made of a paper material. The adhesive portion 441 may be formed on one edge of the wrapper 440 . The wrapper 440 surrounds the medium unit 410, the cooling unit 420, and the filter unit 430, and the adhesive unit 441 formed on one edge and the other edge may be adhered to each other. The wrapper 440 covering the medium unit 410, the cooling unit 420, and the filter unit 430 may not cover one end and the other end of the stick 40.

Accordingly, the wrapper 440 may fix the medium unit 410, the cooling unit 420, and the filter unit 430, and prevent separation from the stick 40.

The first thin film 443 may be disposed at a position corresponding to the first medium cover 413 . The first thin film 443 may be disposed between the wrapper 440 and the first medium cover 413 or disposed outside the wrapper 440 . The first thin film 443 may surround the first medium cover 413 . The first thin film 443 may be made of a metal material. The first thin film 443 may be made of an aluminum material. The first thin film 443 may adhere to or be coated on the wrapper 440 .

The second thin film 445 may be disposed at a position corresponding to the second medium cover 415 . The second thin film 445 may be disposed between the wrapper 440 and the second medium cover 415 or disposed outside the wrapper 440 . The second thin film 445 may be made of a metal material. The second thin film 445 may be made of aluminum. The second thin film 445 may adhere to or be coated on the wrapper 440 .

8 is a flowchart illustrating an operating method of an aerosol generating device according to an embodiment of the present disclosure.

Referring to FIG. 8 , the aerosol generating device 10 may detect insertion of the stick 20 in operation S810. For example, the aerosol generating device 10, through a stick detection sensor included in the sensor module 15, the insertion space 130 formed in the housing of the main body 100 or the insertion space formed in the housing of the cartridge 200 Insertion of stick 20 into 230 can be detected.

The aerosol generating device 10 may determine an initial resistance value of the heater based on the insertion of the stick 20 in operation S820. The initial resistance value of the heater may be set to a resistance value of the heater at a reference temperature, which is a basis for determining the temperature of the heater. For example, the initial resistance value of the heater may be set to the resistance value of the heater at 25°C. Regarding the determination of the initial resistance value of the heater, it will be described with reference to FIG. 10 .

Referring to FIG. 10 , the aerosol generating device 10 may include a resistance detection sensor 150, a puff sensor 155, a battery 16, a power supply circuit 160, and/or a heater 210. .

According to an embodiment of the present disclosure, a resistance detection sensor 150, a puff sensor 155, a battery 16, and/or a power supply circuit 160 may be disposed in the main body 100. A heater 210 may be disposed in the cartridge 200 .

When the main body 100 and the cartridge 200 are coupled, the resistance detection sensor 150 of the main body 100 may be electrically connected to the heater 210 of the cartridge 200 . For example, the resistance detection sensor 150 may be a current sensor that detects current.

The power supply circuit 160 disposed inside the main body 100 may supply power to the heater 210 using power stored in the battery 16 . At this time, power supplied to the heater 210 from the power supply circuit 160 may be adjusted according to the control of the control unit 17 .

The power supply circuit 160 may include at least one switching element that operates under the control of the control unit 17 . At this time, power may be supplied to the heater 210 according to the operation of the switching element. For example, the switching element may be a Bipolar Junction Transistor (BJT) or a Field Effective Transistor (FET).

When the heater 210 and the resistance detection sensor 150 are electrically connected, the same level of current may flow through the heater 210 and the resistance detection sensor 150 . Here, the resistance value Rs of the shunt resistor included in the resistance detection sensor 150 may be a value that does not vary depending on temperature.

The control unit 17 controls the heater 210 and the resistance detection sensor 150 based on the power supplied to the heater 210 from the power supply circuit 160, the current flowing through the heater 210 and the resistance detection sensor 150, and the like. ) It is possible to determine the voltage (V1) applied to. The controller 17 may calculate the voltage V2 applied to the shunt resistor based on the current flowing through the shunt resistor of the resistance detection sensor 150 and the resistance value Rs of the shunt resistor. At this time, the controller 17 transmits a difference (V1-V2) between the voltage V1 applied to the heater 210 and the resistance detection sensor 150 and the voltage V2 applied to the shunt resistor to the heater 210. It can be calculated from the applied voltage. Also, the controller 17 may calculate the resistance value Rh of the heater 210 based on the voltage applied to the heater 210 and the current flowing through the heater 210 .

Therefore, the controller 17, while the wick is heated by the heater 210, uses the current flowing through the heater 210 calculated through the resistance detection sensor 150 to measure the temperature of the heater 210 in real time. can be judged by

Meanwhile, the resistance of the heater 210 may be a material having a temperature coefficient of resistance, and the resistance value Rh of the heater 210 may vary according to the temperature of the resistance. The control unit 17 determines the temperature coefficient of resistance of the heater 210, the resistance value (Rh) of the heater 210, and the heater 210 at the reference temperature based on a calculation formula for calculating the temperature of the heater 210. The temperature of the heater 210 corresponding to the resistance value of ) can be calculated. Here, a formula for calculating the temperature of the heater 210 may correspond to Equation 1 below.

In Equation 1, TCR is the temperature coefficient of resistance of the heater 210, T1 is the temperature of the heater 210, R1 is the resistance value of the heater 210, T0 is the reference temperature, and R0 is the heater 210 at the reference temperature. ) may be a resistance value of Here, T0 may be 25°C, and R0 may be a resistance value of the heater 210 at 25°C.

Meanwhile, in this drawing, a current sensor connected in series to the heater 210 has been described as an example, but the present invention is not limited thereto, and a temperature sensor disposed adjacent to the heater 210 to sense the temperature of the heater 210 , a voltage sensor for detecting a voltage applied to the heater 210 may be provided as the resistance detection sensor 150 .

Referring back to FIG. 8 , the aerosol generating device 10 may determine whether a puff is detected through the puff sensor 155 in operation S830. For example, the aerosol generating device 10 may preheat the heater based on a preset temperature profile stored in the memory 14 while a puff is not detected. Here, the preheating is performed by raising the temperature of the heater to a certain level in preparation for generation of aerosol, such as before the puff is detected after the stick 20 is inserted or when the puff ends while the stick 20 is inserted. It can mean to keep or increase.

The aerosol generating device 10 may heat the heater based on the puff being detected in operation S840. For example, the aerosol generating device 10 may supply power to the heater based on a preset temperature profile stored in the memory 14 so that the temperature of the heater rises to a temperature for generating an aerosol.

According to an embodiment, the preset power to be supplied to the heater in the heating section may vary according to the number of puffs, the elapsed time in the heating section, and the like. For example, while a puff is sensed, power supplied to the heater may decrease according to the lapse of time in which the puff is sensed.

The aerosol generating device 10 may determine whether to change the initial resistance value of the heater in operation S850. According to an embodiment, the aerosol generating device 10 may determine whether to change the initial resistance value of the heater based on the temperature of the heater and a preset temperature range corresponding to heating. For example, the aerosol generating device 10 may determine that the initial resistance value of the heater needs to be changed based on the fact that the temperature of the heater is not within a preset temperature range. In this regard, it will be described with reference to FIG. 9 .

Referring to FIG. 9 , the aerosol generating device 10 may heat the heater based on the first electric power corresponding to the heating of the heater in operation S910. For example, the aerosol generating device 10 may supply first power corresponding to the temperature profile stored in the memory 14 to the heater so that the temperature of the heater rises to a temperature for generating an aerosol.

In operation S920, the aerosol generating device 10 may determine whether the temperature of the heater is equal to or greater than a preset first temperature in a state in which the first power is supplied to the heater. Here, the first temperature may correspond to the highest temperature of the heater in the heating section.

The aerosol generating device 10 may change power supplied to the heater to second power lower than the first power based on the fact that the temperature of the heater is equal to or higher than the first temperature in operation S930. Here, the second power may be equal to or less than the minimum power for generating the aerosol. For example, the aerosol generating device 10 may change the power supplied to the heater to 4W when the temperature of the heater is equal to or higher than the first temperature in a state of heating the heater based on the power of 8W.

According to an embodiment, the second power may be determined based on power preset to be supplied to the heater in the heating section according to the temperature profile. For example, the second power may be determined to be lower than power preset to be supplied to the heater in the heating section by a predetermined power. For example, the second power may be determined to be lower than power preset to be supplied to the heater in the heating section by a predetermined ratio.

In operation S940, the aerosol generating device 10 may determine whether the temperature of the heater is equal to or higher than a preset second temperature in a state in which the second power is supplied to the heater. Here, the second temperature may be a temperature corresponding to exhaustion of the aerosol generating material. For example, the second temperature may be set to a higher temperature than the first temperature.

The aerosol generating device 10 may cut off supply of power to the heater based on the fact that the temperature of the heater is equal to or higher than the second temperature in operation S950. That is, the aerosol generating device 10 may determine that the aerosol generating material is exhausted when the temperature of the heater is equal to or higher than the second temperature while the second power is supplied to the heater. At this time, the aerosol generating device 10 may stop generating aerosol in response to exhaustion of the aerosol generating material.

Meanwhile, in operation S960 , the aerosol generating device 10 may determine whether the temperature of the heater is less than the third temperature based on the fact that the temperature of the heater is less than the first temperature. Here, the third temperature may correspond to the lowest temperature of the heater in the heating section.

The aerosol generating device 10 may determine, in operation S970, to change the initial resistance value of the heater when the temperature of the heater is greater than or equal to the first temperature and less than the second temperature, or when the temperature of the heater is less than the third temperature. . Meanwhile, the aerosol generating device 10 may maintain the initial resistance value of the heater based on the fact that the temperature of the heater is lower than the first temperature and higher than the third temperature.

Referring back to FIG. 8 , in operation S860, the aerosol generating device 10 determines the initial resistance of the heater according to the temperature difference between the temperature of the heater and the preset reference temperature based on the decision to change the initial resistance of the heater. value can be changed. Here, the preset reference temperature may be included in the preset temperature range. For example, the preset reference temperature may be a target temperature of the heater in the heating section.

According to an embodiment, the degree to which the initial resistance value is changed may be proportional to a temperature difference between the temperature of the heater and a preset reference temperature. For example, the aerosol generating device 10 may increase the initial resistance value of the heater in proportion to the difference between the temperature of the heater and the reference temperature, based on the fact that the temperature of the heater exceeds a preset temperature range. For example, the aerosol generating device 10 may reduce the initial resistance value of the heater in proportion to the difference between the temperature of the heater and the reference temperature, based on the fact that the temperature of the heater falls below a preset temperature range.

Meanwhile, according to an embodiment, the aerosol generating device 10 may determine whether or not to heat the heater based on whether a puff is detected through a puff sensor included in the sensor module 15 . For example, the aerosol generating device 10 may continuously heat the heater based on the puff being sensed. For example, the aerosol generating device 10 may stop heating the heater based on the end of puff sensing. At this time, the aerosol generating device 10 may preheat the heater based on the initial resistance value of the heater set in the heating section.

Meanwhile, according to an embodiment, the aerosol generating device 10 may initialize the initial resistance value of the heater based on the removal of the stick 20 . That is, in the aerosol generating device 10, the stick 20 is inserted into the insertion spaces 130 and 230 formed in the main body 100 or the cartridge 200 through the stick detection sensor included in the sensor module 15. Each time, the initial resistance value of the heater can be re-determined.

Referring to FIG. 11 , the temperature of the heater may increase while the first power corresponding to the temperature profile stored in the memory 14 is supplied to the heater to generate aerosol. In this case, when the aerosol generating material is exhausted, the temperature of the heater may be higher than the preset first temperature T1 while the first power is supplied to the heater.

The aerosol generating device 10 may change the power supplied to the heater to second power lower than the first power based on that the temperature of the heater is equal to or higher than the preset first temperature T1. At this time, when the aerosol generating material is exhausted, even if the power supplied to the heater is changed to the second power lower than the first power, the temperature of the heater may continuously rise. That is, when the liquid delivery means does not contain the aerosol generating material due to exhaustion of the aerosol generating material, the temperature of the heater may rise despite relatively low power.

The aerosol generating device 10 may cut off the supply of power to the heater based on the fact that the temperature of the heater is equal to or higher than the second temperature T2 in a state in which the second power is supplied to the heater.

Meanwhile, referring to FIG. 12 , while the first power is supplied to the heater in a state in which the aerosol generating material is not exhausted, the temperature of the heater may increase to a predetermined first temperature T1 or higher. For example, when the amount of the aerosol generating material flowing through the liquid delivery means temporarily decreases in a state where the aerosol generating material is not exhausted, the temperature of the heater may be increased to a predetermined first temperature T1 or higher.

The aerosol generating device 10 may change the electric power supplied to the heater to the second electric power P2 lower than the first electric power P1 based on the fact that the temperature of the heater is equal to or higher than the preset first temperature T1. At this time, when the aerosol generating material is not exhausted, the temperature of the heater may be lowered to less than the first temperature T1 or maintained at a certain level in response to the change of the power supplied to the heater to the second power P2. can

The aerosol generating device 10 may determine to change the initial resistance value of the heater based on that the temperature of the heater is greater than or equal to the first temperature and less than the second temperature. At this time, the aerosol generating device 10 may change the initial resistance value of the heater according to a temperature difference between the temperature of the heater and a preset reference temperature based on the decision to change the initial resistance value of the heater. For example, the aerosol generating device 10 may increase the initial resistance of the heater according to a temperature difference between the highest temperature of the heater calculated in the heating section and a predetermined reference temperature. As such, when the initial resistance value of the heater increases, the actual temperature of the heater may be higher than the target temperature while the aerosol generating device 10 raises the temperature of the heater to the target temperature. Through this, even when the amount of the aerosol-generating substance flowing into the liquid delivery means is temporarily reduced, the aerosol can be constantly generated.

Meanwhile, in a state in which the aerosol generating material is not exhausted, while the first power is supplied to the heater, the temperature of the heater may be lowered to less than a preset minimum temperature of the aerosol. Here, the lowest temperature may be the lowest temperature corresponding to a case where the first power is supplied to the heater for a predetermined period of time or more. For example, in a state where the aerosol generating material is not exhausted, when the amount of the aerosol generating material flowing through the liquid delivery means temporarily increases, even if the first electric power is supplied to the heater for a predetermined time or more, the temperature of the heater is lowered to a preset minimum. temperature can be lowered.

The aerosol generating device 10 may determine to change the initial resistance value of the heater based on that the temperature of the heater is less than a preset minimum. At this time, the aerosol generating device 10 may change the initial resistance value of the heater according to a temperature difference between the temperature of the heater and a preset reference temperature based on the decision to change the initial resistance value of the heater. For example, the aerosol generating device 10 may reduce the initial resistance value of the heater according to a temperature difference between the temperature of the heater when the first power is supplied for a predetermined time or more in the heating section and a preset reference temperature. there is. As such, when the initial resistance value of the heater decreases, the actual temperature of the heater may be lower than the target temperature while the aerosol generating device 10 raises the temperature of the heater to the target temperature. Through this, even when the amount of the aerosol-generating material flowing into the liquid delivery means temporarily increases, the aerosol can be constantly generated.

Meanwhile, referring to FIG. 13 , based on the insertion of the stick 20, a resistance value different from the resistance value at the actual reference temperature may be set as the initial resistance value of the heater. For example, when the cartridge 200 is stored in a space with a high ambient temperature or when the time interval until the stick 20 is removed from the insertion spaces 130 and 230 and then inserted again is short, A resistance value higher than the resistance value at the reference temperature may be set as the initial resistance value of the heater. For example, in the case where the cartridge 200 is stored in a space where the ambient temperature is low, a resistance value lower than the resistance value at the actual reference temperature may be set as the initial resistance value of the heater.

When the initial resistance value of the heater is set lower than the resistance value at the actual reference temperature, the temperature 1310 of the heater calculated while the first power is supplied to the heater in the heating section after time t0 is the highest temperature in the heating section ( Thigh) or higher. On the other hand, when the initial resistance value of the heater is set higher than the resistance value at the actual reference temperature, the temperature 1320 of the heater calculated while the first power is supplied to the heater in the subsequent heating section is the lowest temperature in the heating section ( Tlow) may be less.

The aerosol generating device 10 may determine to change the initial resistance value of the heater based on the fact that the temperature of the heater does not fall within a preset temperature range. At this time, the aerosol generating device 10 determines the initial resistance value of the heater according to the temperature difference between the heater temperatures 1310 and 1320 and the preset reference temperature 1300 based on the determination to change the initial resistance value of the heater. can be changed.

In Equation 1, TCR is the temperature coefficient of resistance of the heater 210, T1 is the temperature of the heater 210, R1 is the resistance value of the heater 210, T0 is the reference temperature, and R0 is the heater 210 at the reference temperature. ) may be a resistance value of Here, T0 may be 25°C, and R0 may be a resistance value of the heater 210 at 25°C.

Meanwhile, in this drawing, a current sensor connected in series to the heater 210 has been described as an example, but the present invention is not limited thereto, and a temperature sensor disposed adjacent to the heater 210 to sense the temperature of the heater 210 , a voltage sensor for detecting a voltage applied to the heater 210 may be provided as the resistance detection sensor 150 .

Referring back to FIG. 8 , the aerosol generating device 10 may determine whether a puff is detected through the puff sensor 155 in operation S830. For example, the aerosol generating device 10 may preheat the heater based on a preset temperature profile stored in the memory 14 while a puff is not detected. Here, the preheating is performed by raising the temperature of the heater to a certain level in preparation for generation of aerosol, such as before the puff is detected after the stick 20 is inserted or when the puff ends while the stick 20 is inserted. It can mean to keep or increase.

The aerosol generating device 10 may heat the heater based on the puff being detected in operation S840. For example, the aerosol generating device 10 may supply power to the heater based on a preset temperature profile stored in the memory 14 so that the temperature of the heater rises to a temperature for generating an aerosol.

According to an embodiment, the preset power to be supplied to the heater in the heating section may vary according to the number of puffs, the elapsed time in the heating section, and the like. For example, while a puff is sensed, power supplied to the heater may decrease according to the lapse of time in which the puff is sensed.

The aerosol generating device 10 may determine whether to change the initial resistance value of the heater in operation S850. According to an embodiment, the aerosol generating device 10 may determine whether to change the initial resistance value of the heater based on the temperature of the heater and a preset temperature range corresponding to heating. For example, the aerosol generating device 10 may determine that the initial resistance value of the heater needs to be changed based on the fact that the temperature of the heater is not within a preset temperature range. In this regard, it will be described with reference to FIG. 9 .

Referring to FIG. 9 , the aerosol generating device 10 may heat the heater based on the first electric power corresponding to the heating of the heater in operation S910. For example, the aerosol generating device 10 may supply first power corresponding to the temperature profile stored in the memory 14 to the heater so that the temperature of the heater rises to a temperature for generating an aerosol.

In operation S920, the aerosol generating device 10 may determine whether the temperature of the heater is equal to or greater than a preset first temperature in a state in which the first power is supplied to the heater. Here, the first temperature may correspond to the highest temperature of the heater in the heating section.

The aerosol generating device 10 may change power supplied to the heater to second power lower than the first power based on the fact that the temperature of the heater is equal to or higher than the first temperature in operation S930. Here, the second power may be equal to or less than the minimum power for generating the aerosol. For example, the aerosol generating device 10 may change the power supplied to the heater to 4W when the temperature of the heater is equal to or higher than the first temperature in a state of heating the heater based on the power of 8W.

According to an embodiment, the second power may be determined based on power preset to be supplied to the heater in the heating section according to the temperature profile. For example, the second power may be determined to be lower than power preset to be supplied to the heater in the heating section by a predetermined power. For example, the second power may be determined to be lower than power preset to be supplied to the heater in the heating section by a predetermined ratio.

In operation S940, the aerosol generating device 10 may determine whether the temperature of the heater is equal to or higher than a preset second temperature in a state in which the second power is supplied to the heater. Here, the second temperature may be a temperature corresponding to exhaustion of the aerosol generating material. For example, the second temperature may be set to a higher temperature than the first temperature.

The aerosol generating device 10 may cut off supply of power to the heater based on the fact that the temperature of the heater is equal to or higher than the second temperature in operation S950. That is, the aerosol generating device 10 may determine that the aerosol generating material is exhausted when the temperature of the heater is equal to or higher than the second temperature while the second power is supplied to the heater. At this time, the aerosol generating device 10 may stop generating aerosol in response to exhaustion of the aerosol generating material.

Meanwhile, in operation S960 , the aerosol generating device 10 may determine whether the temperature of the heater is less than the third temperature based on the fact that the temperature of the heater is less than the first temperature. Here, the third temperature may correspond to the lowest temperature of the heater in the heating section.

The aerosol generating device 10 may determine, in operation S970, to change the initial resistance value of the heater when the temperature of the heater is greater than or equal to the first temperature and less than the second temperature, or when the temperature of the heater is less than the third temperature. . Meanwhile, the aerosol generating device 10 may maintain the initial resistance value of the heater based on the fact that the temperature of the heater is lower than the first temperature and higher than the third temperature.

Referring back to FIG. 8 , in operation S860, the aerosol generating device 10 determines the initial resistance of the heater according to the temperature difference between the temperature of the heater and the preset reference temperature based on the decision to change the initial resistance of the heater. value can be changed. Here, the preset reference temperature may be included in the preset temperature range. For example, the preset reference temperature may be a target temperature of the heater in the heating section.

According to an embodiment, the degree to which the initial resistance value is changed may be proportional to a temperature difference between the temperature of the heater and a preset reference temperature. For example, the aerosol generating device 10 may increase the initial resistance value of the heater in proportion to the difference between the temperature of the heater and the reference temperature, based on the fact that the temperature of the heater exceeds a preset temperature range. For example, the aerosol generating device 10 may reduce the initial resistance value of the heater in proportion to the difference between the temperature of the heater and the reference temperature, based on the fact that the temperature of the heater falls below a preset temperature range.

Meanwhile, according to an embodiment, the aerosol generating device 10 may determine whether or not to heat the heater based on whether a puff is detected through a puff sensor included in the sensor module 15 . For example, the aerosol generating device 10 may continuously heat the heater based on the puff being sensed. For example, the aerosol generating device 10 may stop heating the heater based on the end of puff sensing. At this time, the aerosol generating device 10 may preheat the heater based on the initial resistance value of the heater set in the heating section.

Meanwhile, according to an embodiment, the aerosol generating device 10 may initialize the initial resistance value of the heater based on the removal of the stick 20 . That is, in the aerosol generating device 10, the stick 20 is inserted into the insertion spaces 130 and 230 formed in the main body 100 or the cartridge 200 through the stick detection sensor included in the sensor module 15. Each time, the initial resistance value of the heater can be re-determined.

Referring to FIG. 11 , the temperature of the heater may increase while the first power corresponding to the temperature profile stored in the memory 14 is supplied to the heater to generate aerosol. In this case, when the aerosol generating material is exhausted, the temperature of the heater may be higher than the preset first temperature T1 while the first power is supplied to the heater.

The aerosol generating device 10 may change the power supplied to the heater to second power lower than the first power based on that the temperature of the heater is equal to or higher than the preset first temperature T1. At this time, when the aerosol generating material is exhausted, even if the power supplied to the heater is changed to the second power lower than the first power, the temperature of the heater may continuously rise. That is, when the liquid delivery means does not contain the aerosol generating material due to exhaustion of the aerosol generating material, the temperature of the heater may rise despite relatively low power.

The aerosol generating device 10 may cut off the supply of power to the heater based on the fact that the temperature of the heater is equal to or higher than the second temperature T2 in a state in which the second power is supplied to the heater.

Meanwhile, referring to FIG. 12 , while the first power is supplied to the heater in a state in which the aerosol generating material is not exhausted, the temperature of the heater may increase to a predetermined first temperature T1 or higher. For example, when the amount of the aerosol generating material flowing through the liquid delivery means temporarily decreases in a state where the aerosol generating material is not exhausted, the temperature of the heater may be increased to a predetermined first temperature T1 or higher.

The aerosol generating device 10 may change the electric power supplied to the heater to the second electric power P2 lower than the first electric power P1 based on the fact that the temperature of the heater is equal to or higher than the preset first temperature T1. At this time, when the aerosol generating material is not exhausted, the temperature of the heater may be lowered to less than the first temperature T1 or maintained at a certain level in response to the change of the power supplied to the heater to the second power P2. can

The aerosol generating device 10 may determine to change the initial resistance value of the heater based on that the temperature of the heater is greater than or equal to the first temperature and less than the second temperature. At this time, the aerosol generating device 10 may change the initial resistance value of the heater according to a temperature difference between the temperature of the heater and a preset reference temperature based on the decision to change the initial resistance value of the heater. For example, the aerosol generating device 10 may increase the initial resistance of the heater according to a temperature difference between the highest temperature of the heater calculated in the heating section and a predetermined reference temperature. As such, when the initial resistance value of the heater increases, the actual temperature of the heater may be higher than the target temperature while the aerosol generating device 10 raises the temperature of the heater to the target temperature. Through this, even when the amount of the aerosol-generating substance flowing into the liquid delivery means is temporarily reduced, the aerosol can be constantly generated.

Meanwhile, in a state in which the aerosol generating material is not exhausted, while the first power is supplied to the heater, the temperature of the heater may be lowered to less than a preset minimum temperature of the aerosol. Here, the lowest temperature may be the lowest temperature corresponding to a case where the first power is supplied to the heater for a predetermined period of time or longer. For example, in a state where the aerosol generating material is not exhausted, when the amount of the aerosol generating material flowing through the liquid delivery means temporarily increases, even if the first electric power is supplied to the heater for a predetermined time or more, the temperature of the heater is lowered to a preset minimum. temperature can be lowered.

The aerosol generating device 10 may determine to change the initial resistance value of the heater based on that the temperature of the heater is less than a preset minimum. At this time, the aerosol generating device 10 may change the initial resistance value of the heater according to a temperature difference between the temperature of the heater and a preset reference temperature based on the decision to change the initial resistance value of the heater. For example, the aerosol generating device 10 may reduce the initial resistance value of the heater according to a temperature difference between the temperature of the heater when the first power is supplied for a predetermined time or more in the heating section and a preset reference temperature. there is. As such, when the initial resistance value of the heater decreases, the actual temperature of the heater may be lower than the target temperature while the aerosol generating device 10 raises the temperature of the heater to the target temperature. Through this, even when the amount of the aerosol-generating material flowing into the liquid delivery means temporarily increases, the aerosol can be constantly generated.

Meanwhile, referring to FIG. 13 , based on the insertion of the stick 20, a resistance value different from the resistance value at the actual reference temperature may be set as the initial resistance value of the heater. For example, when the cartridge 200 is stored in a space with a high ambient temperature or when the time interval until the stick 20 is removed from the insertion spaces 130 and 230 and then inserted again is short, A resistance value higher than the resistance value at the reference temperature may be set as the initial resistance value of the heater. For example, in the case where the cartridge 200 is stored in a space where the ambient temperature is low, a resistance value lower than the resistance value at the actual reference temperature may be set as the initial resistance value of the heater.

When the initial resistance value of the heater is set lower than the resistance value at the actual reference temperature, the temperature 1310 of the heater calculated while the first power is supplied to the heater in the heating section after time t0 is the highest temperature in the heating section ( Thigh) or higher. On the other hand, when the initial resistance value of the heater is set higher than the resistance value at the actual reference temperature, the temperature 1320 of the heater calculated while the first power is supplied to the heater in the subsequent heating section is the lowest temperature in the heating section ( Tlow) may be less.

The aerosol generating device 10 may determine to change the initial resistance value of the heater based on the fact that the temperature of the heater does not fall within a preset temperature range. At this time, the aerosol generating device 10 determines the initial resistance value of the heater according to the temperature difference between the heater temperatures 1310 and 1320 and the preset reference temperature 1300 based on the determination to change the initial resistance value of the heater. can be changed.

1 to 13, an aerosol generating device 10 according to an aspect of the present disclosure includes a heater 210 for heating an aerosol generating material; a resistance detection sensor 150 outputting a signal corresponding to the resistance value of the heater 210; A puff sensor 155 for detecting a puff; And a control unit 17 for determining a resistance value of the heater 210 based on a signal of the resistance detection sensor 150, wherein the control unit 21 has a stick for the insertion spaces 130 and 230 ( Based on the insertion of 20), an initial resistance value of the heater 210 is determined, and based on the detection of the puff through the puff sensor 155, the heater 210 is set based on a preset temperature profile. heating, and determining whether to change the initial resistance value based on the temperature of the heater 210 calculated based on the initial resistance value and a predetermined temperature range corresponding to the heating of the heater 210; , Based on the determination to change the initial resistance value, the initial resistance value may be changed according to a difference between the calculated temperature of the heater 210 and a preset reference temperature.

Also, according to another aspect of the present disclosure, the degree to which the initial resistance value is changed may be proportional to the difference between the calculated temperature of the heater 210 and the reference temperature.

In addition, according to another aspect of the present disclosure, based on that the calculated temperature of the heater 210 is equal to or higher than a preset first temperature, whether or not the aerosol generating material is exhausted is determined, and the aerosol generating material is exhausted. Based on the determination that the power supply to the heater 210 is cut off, and based on the determination that the aerosol generating material is not exhausted, it may be determined to change the initial resistance value.

In addition, according to another aspect of the present disclosure, the controller 17 controls the temperature of the heater 210 in a state in which the first power based on the preset temperature profile is supplied to the heater 210 . Based on the first temperature or higher, power supplied to the heater 210 is changed to second power lower than the first power, and in a state in which the second power is supplied to the heater 210, the heater Based on the fact that the temperature of 210 is equal to or greater than the preset second temperature, it is determined that the aerosol generating material is exhausted, and the second temperature may be greater than or equal to the first temperature.

Further, according to another aspect of the present disclosure, the control unit 17 increases the initial resistance value in proportion to a difference between the calculated temperature of the heater 210 and the reference temperature, and the first The temperature may exceed the reference temperature.

In addition, according to another aspect of the present disclosure, the controller 17 determines to change the initial resistance value based on the calculated temperature of the heater 210 being less than a preset third temperature, , the initial resistance value is reduced in proportion to the difference between the calculated temperature of the heater 210 and the reference temperature, and the third temperature may be less than the reference temperature.

Meanwhile, in the method of operating the aerosol generating device 10 according to one aspect of the present disclosure, a signal corresponding to the resistance value of the heater 210 is generated based on the insertion of the stick 20 into the insertion spaces 130 and 230. determining an initial resistance value of the heater 210 through the output resistance detection sensor 150; Heating the heater 210 based on a preset temperature profile based on the detection of the puff through the puff sensor 155; determining whether to change the initial resistance value based on the temperature of the heater 210 calculated based on the initial resistance value and a preset temperature range corresponding to heating of the heater 210; and based on the determination to change the initial resistance value, changing the initial resistance value according to a difference between the calculated temperature of the heater 210 and a preset reference temperature.

Also, according to another aspect of the present disclosure, the degree to which the initial resistance value is changed may be proportional to the difference between the calculated temperature of the heater 210 and the predetermined temperature.

Further, according to another aspect of the present disclosure, the operation of determining whether to change the initial resistance value may include generating the aerosol based on the calculated temperature of the heater 210 being greater than or equal to a preset first temperature. An operation of determining whether the substance is exhausted; cutting off supply of electric power to the heater 210 based on the determination that the aerosol generating material is exhausted; and determining to change the initial resistance value based on the determination that the aerosol generating material is not exhausted.

Further, according to another aspect of the present disclosure, the operation of determining whether the aerosol generating material is exhausted is performed in a state in which first power based on the predetermined temperature profile is supplied to the heater 210, the heater 210 an operation of changing power supplied to the heater 210 to second power lower than the first power based on that the temperature of the heater 210 is equal to or higher than the first temperature; and determining that the aerosol-generating material is exhausted based on a temperature of the heater 210 being equal to or higher than a predetermined second temperature in a state in which the second power is supplied to the heater 210, The second temperature may be greater than or equal to the first temperature.

Further, according to another aspect of the present disclosure, the operation of changing the initial resistance value is an operation of increasing the initial resistance value in proportion to the difference between the calculated temperature of the heater 210 and the reference temperature. Including, the first temperature may exceed the reference temperature.

In addition, according to another aspect of the present disclosure, the operation of determining whether to change the initial resistance value is based on the calculated temperature of the heater 210 being less than a preset third temperature, the initial resistance An operation of determining that the value is changed, and the operation of changing the initial resistance value is an operation of reducing the initial resistance value in proportion to a difference between the calculated temperature of the heater 210 and the reference temperature. Including, the third temperature may be less than the reference temperature.

Certain or other embodiments of the present disclosure described above are not mutually exclusive or distinct from each other. Certain or other embodiments of the present disclosure described above may be combined or used in combination with each component or function.

For example, configuration A described in a specific embodiment and/or drawing may be combined with configuration B described in another embodiment and/or drawing. That is, even if the combination between the components is not directly explained, it means that the combination is possible except for the case where the combination is impossible.

The above detailed description should not be construed as limiting in all respects and should be considered illustrative. The scope of the present invention should be determined by reasonable interpretation of the appended claims, and all changes within the equivalent scope of the present invention are included in the scope of the present invention.

Claims (12)

a heater for heating the aerosol generating material;
a resistance detection sensor outputting a signal corresponding to the resistance value of the heater;
A puff sensor for detecting a puff; and
A control unit determining a resistance value of the heater based on a signal of the resistance detection sensor,
The control unit,
Determine an initial resistance value of the heater based on the insertion of the stick into the insertion space;
Based on the detection of the puff through the puff sensor, heating the heater based on a preset temperature profile,
Determine whether to change the initial resistance value based on the temperature of the heater calculated based on the initial resistance value and a preset temperature range corresponding to heating of the heater;
Based on the determination to change the initial resistance value, the aerosol generating device, characterized in that for changing the initial resistance value according to the difference between the calculated temperature of the heater and a preset reference temperature. According to claim 1,
The degree of change of the initial resistance value is proportional to the difference between the calculated temperature of the heater and the reference temperature. According to claim 1,
The control unit,
Based on the calculated temperature of the heater being greater than or equal to a preset first temperature, determining whether the aerosol generating material is exhausted;
Based on the determination that the aerosol generating material is exhausted, cut off the supply of power to the heater;
and determining to change the initial resistance value based on the determination that the aerosol generating material is not exhausted. The control unit,
In a state in which the first power based on the preset temperature profile is supplied to the heater, the power supplied to the heater is changed to second power lower than the first power based on the fact that the temperature of the heater is equal to or higher than the first temperature. change,
In a state in which the second power is supplied to the heater, it is determined that the aerosol generating material is exhausted based on the fact that the temperature of the heater is equal to or higher than a preset second temperature;
The aerosol generating device, characterized in that the second temperature is higher than the first temperature. According to claim 3,
The control unit,
Increasing the initial resistance value in proportion to the difference between the calculated temperature of the heater and the reference temperature;
The aerosol generating device, characterized in that the first temperature exceeds the reference temperature. According to claim 1,
The control unit,
Based on the calculated temperature of the heater being less than a preset third temperature, determining to change the initial resistance value;
Decreasing the initial resistance value in proportion to a difference between the calculated temperature of the heater and the reference temperature;
The aerosol generating device, characterized in that the third temperature is less than the reference temperature. In the operating method of the aerosol generating device,
determining an initial resistance value of the heater through a resistance detection sensor that outputs a signal corresponding to the resistance value of the heater based on the insertion of the stick into the insertion space;
Heating a heater based on a preset temperature profile based on the detection of the puff through the puff sensor;
determining whether to change the initial resistance value based on the temperature of the heater calculated based on the initial resistance value and a preset temperature range corresponding to heating of the heater; and
Based on the determination to change the initial resistance value, the method of operating the aerosol generating device comprising the operation of changing the initial resistance value according to the difference between the calculated temperature of the heater and a preset reference temperature. According to claim 7,
The degree of change of the initial resistance value is proportional to the difference between the calculated temperature of the heater and the reference temperature. According to claim 7,
The operation of determining whether to change the initial resistance value,
determining whether the aerosol-generating material is exhausted based on the calculated temperature of the heater being greater than or equal to a preset first temperature;
cutting off supply of power to the heater based on the determination that the aerosol generating material is exhausted; and
and determining to change the initial resistance value based on the determination that the aerosol generating material is not exhausted. According to claim 9,
The operation of determining whether the aerosol generating material is exhausted,
In a state in which the first power based on the preset temperature profile is supplied to the heater, the power supplied to the heater is changed to second power lower than the first power based on the fact that the temperature of the heater is equal to or higher than the first temperature. action to change; and
In a state in which the second power is supplied to the heater, determining that the aerosol generating material is exhausted based on a temperature of the heater being equal to or higher than a preset second temperature;
The method of operating an aerosol generating device, characterized in that the second temperature is equal to or higher than the first temperature. According to claim 9,
The operation of changing the initial resistance value,
An operation of increasing the initial resistance value in proportion to a difference between the calculated temperature of the heater and the reference temperature;
The method of operating an aerosol generating device, characterized in that the first temperature exceeds the reference temperature. According to claim 7,
The operation of determining whether to change the initial resistance value,
And determining to change the initial resistance value based on that the calculated temperature of the heater is less than a preset third temperature,
The operation of changing the initial resistance value,
And reducing the initial resistance value in proportion to a difference between the calculated temperature of the heater and the reference temperature,
The method of operating an aerosol generating device, characterized in that the third temperature is less than the reference temperature.

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