KR20230103461A - Aerosol generating device - Google Patents

Abstract

An aerosol generating device is disclosed. The aerosol generating device of the present disclosure includes a battery; a temperature sensor outputting a signal corresponding to the temperature of the battery; a charging circuit for controlling current supplied to the battery; and a controller, wherein the controller controls the charging circuit to supply a preset minimum current to the battery, based on a temperature of the battery being equal to or higher than a first temperature in a state in which a preset charging current is supplied to the battery. In a state in which the minimum current is supplied to the battery, the temperature of the battery is less than a second temperature lower than the first temperature, and the current value of the charging current is greater than or equal to a preset reference current value, A charging current may be reset, and the charging circuit may be controlled so that the reset charging current is supplied to the battery.

Description

Aerosol generating device {AEROSOL GENERATING DEVICE}

The present disclosure relates to an aerosol generating device.

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 charging a battery to the maximum within a temperature range of the battery allowed during charging.

Another object may be to provide an aerosol generating device capable of preventing damage to a battery during charging.

Another object may be to provide an aerosol generating device capable of accurately calculating the temperature of a battery.

An aerosol generating device according to an aspect of the present disclosure for achieving the above object includes a battery; a temperature sensor outputting a signal corresponding to the temperature of the battery; a charging circuit for controlling current supplied to the battery; and a controller, wherein the controller controls the charging circuit to supply a preset minimum current to the battery, based on a temperature of the battery being equal to or higher than a first temperature in a state in which a preset charging current is supplied to the battery. In a state in which the minimum current is supplied to the battery, the temperature of the battery is less than a second temperature lower than the first temperature, and the current value of the charging current is greater than or equal to a preset reference current value, A charging current may be reset, and the charging circuit may be controlled so that the reset charging current is supplied to the battery.

According to at least one of the embodiments of the present disclosure, the battery may be charged up to a maximum value within a temperature range of the battery allowed during charging.

According to at least one of the embodiments of the present disclosure, damage to a battery may be prevented during charging.

According to at least one of the embodiments of the present disclosure, the temperature of the battery may be accurately calculated.

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 and 6 are. These drawings are referenced in the description of the stick according to the embodiments of the present disclosure.
7 is a flowchart illustrating an operating method of an aerosol generating device according to an embodiment of the present disclosure.
8 to 12 are views referred to in the description of the battery module 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 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 protection circuit module (PCM), which is a circuit for protecting the battery 16. The protection circuit module (PCM) may be disposed adjacent to the upper surface of the battery 16 . For example, the protection circuit 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 100 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 100 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 100 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 100 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 100 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 and 6 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 and 6 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 100 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.

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

Referring to FIG. 7 , the aerosol generating device 10 may charge the battery 16 based on the charging current in operation S710. Here, the charging current may mean a current having a preset current value to be supplied to the battery 16 when charging the battery 16 . For example, when charging of the battery 16 starts, the current value of the charging current may be preset to 1.5A.

According to one embodiment, the aerosol generating device 10 may check the temperature of the battery 16 when the start of charging the battery 16 is requested. For example, the aerosol generating device 10 may determine that charging start of the battery 16 has been requested when a power line is connected to a charging terminal formed on one side of the main body 100 .

Meanwhile, when the battery 16 is charged while the temperature of the battery 16 is equal to or higher than the limit temperature, an abnormal phenomenon such as an additional phase change of ions may occur inside the battery 16 . In addition, due to the occurrence of the abnormal phenomenon, problems such as a decrease in charging capacity of the battery 16 and damage to the battery 16 itself may occur.

According to one embodiment, the aerosol generating device 10 may start charging the battery 16 when the temperature of the battery 16 is less than a preset limit temperature. For example, the aerosol generating device 10 may block charging of the battery 16 when the temperature of the battery 16 is 43° C. or higher set as the limit temperature.

The temperature check of the battery 16 will be described with reference to FIGS. 8 to 10 .

Referring to FIG. 8 , inside the body 100 of the aerosol generating device 10, a battery 16 and a printed circuit board 800 may be disposed.

Each component provided in the aerosol generating device 10 may be mounted on one side and/or the other side of the printed circuit board 800 . Components mounted on the printed circuit board 800 may transmit or receive signals to each other through a wiring layer of the printed circuit board 800 .

A printed circuit board 800 may be disposed adjacent to the battery 16 . For example, the printed circuit board 800 may be disposed such that one side faces the battery 16 .

A charging circuit 810 , a temperature sensor 820 and/or a control circuit 830 may be disposed on the printed circuit board 800 .

The charging circuit 810 may deliver power input from the outside. For example, the charging circuit 810 may transfer power input from the outside to the battery 16 . For example, the charging circuit 810 may transfer power input from the outside to the control circuit 830 .

The charging circuit 810 may include a charging terminal to which power is input from the outside. For example, the charging circuit 810 may transfer power supplied through a power line connected to a charging terminal to the battery 16 and/or the control circuit 830 .

The charging circuit 810 may adjust current supplied to the battery 16 . For example, the charging circuit 810 may adjust the current supplied to the battery 16 by adjusting the resistance value of the variable resistor, but is not limited thereto.

The temperature sensor 820 may be implemented by a thermistor or the like, which is an element using a property in which resistance changes according to temperature. For example, the temperature sensor may include a negative temperature coefficient thermistor (NTC thermistor) having a property of decreasing resistance when the temperature increases.

The temperature sensor 820 may be disposed on one surface of the printed circuit board 800 facing the battery 16 . The temperature sensor 820 may be disposed between the charging circuit 810 and the control circuit 830 . When the temperature sensor 820 is disposed between the charging circuit 810 and the control circuit 830, the influence of temperature change due to heat generation of the heater 110 can be minimized in sensing the temperature of the battery 16. .

The temperature sensor 820 may output a signal corresponding to the temperature of the battery 16 . The controller 17 may determine the temperature of the battery 16 based on a signal from the temperature sensor 820 . For example, the controller 17 may determine the detected value of the temperature sensor 820 as the temperature of the battery 160 . For example, the controller 17 may determine a value obtained by compensating for a detected value of the temperature sensor 820 as the temperature of the battery 16 according to a predetermined criterion.

The control circuit 830 may adjust the current supplied to the heater 110 . For example, the control circuit 830 may include a field effect transistor (FET). At this time, the control circuit 830 may adjust the current supplied to the battery 16 by adjusting the frequency and duty ratio of the current pulse input to the gate terminal of the field effect transistor (FET).

Referring to FIG. 9, in the Cartesian coordinate system, the x-axis direction can be defined as the left and right directions of the aerosol generating device 10. At this time, with the origin as the reference point, a direction toward +x may mean a right direction, and a direction toward -x may mean a left direction. The y-axis direction can be defined as the forward and backward directions of the aerosol generating device 10. In this case, a direction toward +y based on the origin may mean a forward direction, and a direction toward -y may mean a rearward direction. The z-axis direction may be defined as a vertical direction of the aerosol generating device 10. A direction toward +z based on the origin may mean an upward direction, and a direction toward -z may mean a downward direction.

An insertion space 910 in which the stick 20 is disposed may be formed at an upper end of the housing 101 of the aerosol generating device 10 .

The insertion space 910 may be formed by being depressed by a predetermined depth toward the inside of the housing 101 so that at least a portion of the stick 20 can be inserted. The depth of the insertion space 910 may correspond to the length of the area containing the aerosol generating material in the stick 20 . For example, if the aerosol generating device 10 is a device capable of using the stick 20 of FIG. 5, the depth of the insertion space 910 may correspond to the length of the tobacco rod 21 of the stick 20. there is.

Inside the housing 101 of the aerosol generating device 10, components such as a battery 16, a printed circuit board 800, and a heater 920 may be disposed.

The heater 920 may be disposed adjacent to the insertion space 910 . The heater 920 may heat the stick 20 disposed in the insertion space 910 using power supplied from the battery 16 .

Inside the housing 101 of the aerosol generating device 10, an output device 930 may be disposed. For example, the output device 930 may be disposed on the printed circuit board 800 . The output device 930 may include a light emitting diode (LED) that emits light, a buzzer that outputs sound, a motor that generates vibration, and the like.

A charging terminal 940 may be disposed on one side of the housing 101 of the aerosol generating device 10. The charging terminal 940 may be a wired terminal for wired communication such as USB.

A charging circuit 810 may be disposed between the battery 16 and the charging terminal 940 . The charging circuit 810 may transfer power supplied from the outside through the charging terminal 940 to the battery 16 .

A power line 950 for supplying power may be connected to the charging terminal 940 . For example, the charging terminal 940 may be coupled to the connector 955 of the power line 950 .

The controller 17 may determine whether the power line 950 is connected to the charging terminal 940 . For example, the controller 17 may determine whether the power line 950 is connected to the charging terminal 940 according to a signal generated in response to the connection between the charging terminal 940 and the power line 950. .

The controller 17 may start charging the battery 16 when the power line 950 is connected to the charging terminal 940 . When the power line 950 is connected to the charging terminal 940, the controller 17 controls each component provided in the aerosol generating device 10 so that power supplied through the power line 950 is transmitted to the battery 16. can control the operation of For example, the controller 17 starts charging the battery 16 when the power line 950 is connected to the charging terminal 940 while the stick 20 is inserted into the housing 101. can

The structure of the aerosol generating device 10 is not limited to that shown in FIG. 9, and the arrangement of the battery 16, the insertion space 910, the heater 920, the charging terminal 940, etc. may vary depending on the embodiment. can

Meanwhile, the controller 17 may be mounted on the printed circuit board 800 . The controller 17 may monitor the detection value of the temperature sensor 820 . For example, the controller 17 may monitor a detection value corresponding to a resistance value of a thermistor constituting the temperature sensor 820 .

The controller 17 may determine the temperature of the battery 16 based on the detection value of the temperature sensor 820 . For example, the controller 17 may determine the detected value of the temperature sensor 820 as the temperature of the battery 16 . For example, the controller 17 may determine a value obtained by compensating for a value detected by the temperature sensor 820 as the temperature of the battery 16 according to a predetermined criterion.

The controller 17 may calculate the temperature of the battery 16 using a compensation function that compensates for a signal of the temperature sensor 820 . Here, the compensation function may be stored in the memory 14.

The controller 17 may calculate the temperature of the battery 16 by using a compensation function corresponding to the operating state of the aerosol generating device 10 from among a plurality of compensation functions. That is, the control unit 17 considers that the degree of heat generation of each component and the effect of the heat generation of each component on the temperature sensor 820 vary according to the operating state of the aerosol generating device 10, and the plurality of compensation functions A signal of the temperature sensor 820 may be compensated by selecting one of them. In this regard, it will be described with reference to FIG. 10 .

Referring to FIG. 10 , the controller 17 may compensate the signal of the temperature sensor 820 based on the first compensation function 1010 while the heater 110 is being heated. For example, when the temperature corresponding to the signal of the temperature sensor 820 is 50°C while the heater 110 is being heated, the temperature of the battery 16 may be calculated as 38°C.

Meanwhile, the controller 17 may compensate the signal of the temperature sensor 820 based on the second compensation function 1020 while the battery 16 is being charged. For example, when the temperature corresponding to the signal of the temperature sensor 820 is 50°C while the battery 16 is being charged, the temperature of the battery 16 may be calculated as 58°C.

Meanwhile, the controller 17 may compensate the signal of the temperature sensor 820 based on the second compensation function 1020 while the battery 16 is being charged. For example, when the temperature corresponding to the signal of the temperature sensor 820 is 50°C while the battery 16 is being charged, the temperature of the battery 16 may be calculated as 58°C.

Meanwhile, the controller 17 may compensate the signal of the temperature sensor 820 based on the third compensation function 1030 in the standby state. For example, in the standby state, when the temperature corresponding to the signal of the temperature sensor 820 is 50°C, the temperature of the battery 16 may be calculated as 50°C.

In operation S720, the aerosol generating device 10 may check whether the temperature Tbat of the battery 16 is equal to or higher than the preset first temperature T1. Here, the first temperature T1 may mean a maximum value of a temperature range in which charging of the battery 16 is sustained. In this case, the first temperature T1 may be set to a limit temperature or less, which is a criterion for blocking charging of the battery 16 . For example, the aerosol generating device 10 may check whether the temperature Tbat of the battery 16 is equal to or higher than the first temperature T1 of 42°C.

When the temperature Tbat of the battery 16 is less than the preset first temperature T1, the aerosol generating device 10 may continue to charge the battery 16 based on the preset charging current.

In operation S730, the aerosol generating device 10 may charge the battery 16 based on a preset minimum current when the temperature Tbat of the battery 16 is equal to or higher than the preset first temperature T1. there is. Here, the minimum current may mean a current having a minimum current value capable of charging the battery 16 when charging the battery 16 . For example, the current value of the minimum current may be preset to 0.5A.

The aerosol generating device 10 may check whether the temperature Tbat of the battery 16 is less than the preset second temperature T2 in operation S740. Here, the second temperature T2 may mean a temperature at which an increase in the current value of the current supplied to the battery 16 is permitted. For example, the second temperature T2 may be a predetermined temperature lower than the first temperature T1. For example, the aerosol generating device 10 may check whether the temperature Tbat of the battery 16 is less than the second temperature T2 of 40°C.

The aerosol generating device 10 may continue to charge the battery 16 based on the preset minimum current when the temperature Tbat of the battery 16 is equal to or higher than the preset second temperature T2.

The aerosol generating device 10, in operation S750, when the temperature Tbat of the battery 16 is less than the preset second temperature T2, determines whether the current value of the preset charging current is equal to or greater than the preset reference current value You can check. Here, the reference current value may mean a minimum current value at which resetting of the charging current is permitted. In this case, the reference current value may be set to be equal to or greater than the sum of the current value of the minimum current and the current value for resetting the charging current. For example, when the current value of the minimum current is 0.5A and the current value for resetting the preset charging current is 0.2A, the reference current value may be preset to 0.75A.

The aerosol generating device 10 may reset the charging current when the current value of the preset charging current is greater than or equal to the preset reference current value in operation S760. For example, the aerosol generating device 10 may reset a current value lower than the current value of the currently set charging current by a current value for resetting the charging current to the current value of the charging current.

The aerosol generating device 10 may charge the battery 16 based on the reset charging current. For example, the controller 17 of the aerosol generating device 10 may control the charging circuit 810 to supply the reset charging current to the battery 16 .

Meanwhile, in operation S770, the aerosol generating device 10 may stop charging the battery 16 when the current value of the preset charging current is less than the preset reference current value.

11 and 12, when charging of the battery 16 starts at the time t1, the aerosol generating device 10 supplies a current of 1.5A, which is preset as the current value of the charging current, to the battery 16 can

According to one embodiment, the aerosol generating device 10 may start charging the battery 16 based on the temperature of the battery 16 being less than 43° C. set as the limit temperature at time t1.

On the other hand, the aerosol generating device 10 supplies a current of 0.5A, which is preset as the current value of the minimum current, to the battery 16 at the time t2 when the temperature of the battery 16 is determined to be 42 ° C. or higher, which is the first temperature. can

The aerosol generating device 10 may supply a current of 1.3 A reset to the current value of the charging current to the battery 16 at the time of t3 when the temperature of the battery 16 is determined to be less than the second temperature of 40 ° C. .

The aerosol generating device 10 may change the current value of the current supplied to the battery 16 based on the temperature of the battery 16 from the time t3 to the time t10.

Meanwhile, at time t11 when the temperature of the battery 16 is determined to be less than the second temperature of 40° C., the current value of 0.7A set as the current charging current may be less than 0.75A set as the reference current value. At this time, the aerosol generating device 10 may stop charging the battery 16.

According to one embodiment, the aerosol generating device 10 may output a message corresponding to the charging suspension of the battery 16 through the output device 930 based on the charging suspension of the battery 16 . For example, the aerosol generating device 10 may emit light in a pattern corresponding to a charging stop of the battery 16 through a light emitting diode (LED) that emits light. For example, the aerosol generating device 10 may output a sound of a pattern corresponding to the charging interruption of the battery 16 through a buzzer that outputs a sound.

According to one embodiment, the aerosol generating device 10 may store, in the memory 14, a history of charging interruption of the battery 16 based on the interruption of charging of the battery 16. For example, the aerosol generating device 10 may store, in the memory 14, the time and number of times charging of the battery 16 is stopped due to the temperature of the battery 16.

As described above, according to at least one of the embodiments of the present disclosure, the battery 16 may be charged up to a maximum value within a temperature range of the battery 16 allowed during charging.

Also, according to at least one of the embodiments of the present disclosure, damage to the battery 16 may be prevented during charging.

In addition, according to at least one of the embodiments of the present disclosure, the temperature of the battery 16 can be accurately calculated.

1 to 12, an aerosol generating device 10 according to an aspect of the present disclosure includes a battery; a temperature sensor outputting a signal corresponding to the temperature of the battery; a charging circuit for controlling current supplied to the battery; and a controller, wherein the controller controls the charging circuit to supply a preset minimum current to the battery, based on a temperature of the battery being equal to or higher than a first temperature in a state in which a preset charging current is supplied to the battery. In a state in which the minimum current is supplied to the battery, the temperature of the battery is less than a second temperature lower than the first temperature, and the current value of the charging current is greater than or equal to a preset reference current value, A charging current may be reset, and the charging circuit may be controlled so that the reset charging current is supplied to the battery.

Further, according to another aspect of the present disclosure, the control unit may, in a state in which the minimum current is supplied to the battery, the temperature of the battery is less than the second temperature, and the current value of the charging current is the reference The charging circuit may be controlled so that charging of the battery is stopped based on the current being less than the current value.

Also, according to another aspect of the present disclosure, the reference current value may be greater than or equal to the sum of the current value of the minimum current and the current value for resetting the charging current.

Also, according to another aspect of the present disclosure, the control unit may reset a current value lower than a preset current value of the charging current by a predetermined current value as a current value of the charging current.

Further, according to another aspect of the present disclosure, further comprising an output device that emits light, wherein the control unit, based on the charging interruption of the battery, responds to the charging interruption of the battery through the output device. A pattern of light can be emitted.

In addition, according to another aspect of the present disclosure, a memory may be further included, and the controller may store a history of charging interruption of the battery in the memory, based on the charging interruption of the battery.

Also, according to another aspect of the present disclosure, a heater for heating the aerosol generating material; and a control circuit for adjusting current supplied to the heater, wherein the temperature sensor, the charging circuit, and the control circuit are mounted on a printed circuit board disposed adjacent to the battery, and the temperature sensor is circuit and the control circuit.

Further, according to another aspect of the present disclosure, the printed circuit board may be disposed parallel to the battery, and the temperature sensor may be mounted on one surface of the printed circuit board facing the battery.

Further, according to another aspect of the present disclosure, the controller further includes a heater for heating an aerosol generating material, and the controller includes a first of a plurality of compensation functions for compensating a signal of the temperature sensor while the heater is heated. The temperature of the battery may be calculated using 1 compensation function, and the temperature of the battery may be calculated using a second compensation function different from the first compensation function while the battery is being charged.

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 (9)

battery;
a temperature sensor outputting a signal corresponding to the temperature of the battery;
a charging circuit for controlling current supplied to the battery; and
Including a control unit,
The control unit,
Controlling the charging circuit so that a preset minimum current is supplied to the battery based on a temperature of the battery being equal to or higher than a first temperature in a state in which a preset charging current is supplied to the battery;
In a state in which the minimum current is supplied to the battery, the charging current is determined based on the fact that the temperature of the battery is less than a second temperature lower than the first temperature and the current value of the charging current is greater than or equal to a preset reference current value. reset,
The aerosol generating device, characterized in that for controlling the charging circuit so that the reset charging current is supplied to the battery. According to claim 1,
The control unit,
In a state in which the minimum current is supplied to the battery, the charging circuit stops charging the battery based on the fact that the temperature of the battery is less than the second temperature and the current value of the charging current is less than the reference current value. Aerosol generating device, characterized in that for controlling. According to claim 1,
The aerosol generating device, characterized in that the reference current value is greater than or equal to the sum of the current value of the minimum current and the current value for resetting the charging current. According to claim 1,
The control unit,
The aerosol generating device, characterized in that resetting a current value lower than the predetermined current value of the charging current by a predetermined current value to the current value of the charging current. According to claim 2,
Further comprising an output device that emits light,
The control unit,
Based on the suspension of charging of the battery, the aerosol generating device, characterized in that for emitting light of a pattern corresponding to the suspension of charging of the battery through the output device. According to claim 2,
contain more memory;
The control unit,
Based on the suspension of charging of the battery, the aerosol generating device characterized in that for storing the history of the charging suspension of the battery in the memory. According to claim 1,
a heater for heating the aerosol generating material; and
A control circuit for adjusting the current supplied to the heater;
The temperature sensor, the charging circuit, and the control circuit are mounted on a printed circuit board disposed adjacent to the battery,
The aerosol generating device, characterized in that the temperature sensor is disposed between the charging circuit and the control circuit. According to claim 7,
The printed circuit board is disposed parallel to the battery,
The aerosol generating device, characterized in that the temperature sensor is mounted on one side of the printed circuit board facing the battery. According to claim 1,
Further comprising a heater for heating the aerosol generating material;
The control unit,
While the heater is being heated, the temperature of the battery is calculated using a first compensation function among a plurality of compensation functions for compensating a signal of the temperature sensor,
While the battery is being charged, a second compensation function different from the first compensation function is used to calculate the temperature of the battery.

Images