Aerosol generating apparatus and its operating method

Abstract

An aerosol generating device and an operating method thereof are disclosed. The aerosol generating device of the present disclosure includes a housing in which an insertion space is formed, a heater, a resistance detection sensor that outputs a signal corresponding to a resistance value of the heater, and a control unit that determines the resistance value of the heater based on the signal of the resistance detection sensor. The control unit determines an initial resistance value of the heater when a stick is inserted into the insertion space, controls the heater to supply power based on a predetermined temperature profile, determines whether to change the initial resistance value based on a temperature of the heater calculated based on the initial resistance value and a predetermined temperature range, and changes the initial resistance value according to a difference between the calculated heater temperature and a predetermined reference temperature.

Description

[Technical Field]

[0001] This disclosure relates to an aerosol generating apparatus and a method of operating the same. [Background technology]

[0002] An aerosol generator is used to extract specific components from a medium or substance via an aerosol. The medium can contain substances with a variety of components. The substances contained in the medium can be flavor substances with a variety of components. For example, the substances contained in the medium can contain nicotine, herbal components, and / or coffee components. In recent years, much research has been conducted on such aerosol generators. [Overview of the Initiative] [Problems that the invention aims to solve]

[0003] This disclosure aims to resolve the aforementioned issues and other problems.

[0004] Another object of this disclosure is to provide an aerosol generator and a method of operating the same that can update the initial resistance value of a heater based on the heater temperature during a preheating section and / or heating section.

[0005] Another object of this disclosure is to provide an aerosol generator and a method of operating the same that can generate a constant amount of aerosol in a heated section by updating the initial resistance value of the heater.

[0006] Another object of this disclosure is to provide an aerosol generator and a method of operating the same that can accurately determine whether an aerosol-generating substance has been produced in the preheating section and / or heating section. [Means for solving the problem]

[0007] An aerosol generating apparatus according to one aspect of the present disclosure for achieving the aforementioned and other objectives may include: a housing having an elongated insertion space; a heater for heating an aerosol generating material; a resistance detection sensor that outputs a signal corresponding to the resistance value of the heater; and a control unit that determines the resistance value of the heater based on the signal from the resistance detection sensor. The control unit determines the initial resistance value of the heater when a stick is inserted into the insertion space; controls the heater to supply power based on a predetermined temperature profile; determines whether to change the initial resistance value based on the heater temperature calculated based on the initial resistance value and a predetermined temperature range; and, if it decides to change the initial resistance value, the initial resistance value may be changed by the difference between the calculated heater temperature and a predetermined reference temperature.

[0008] A method of operating an aerosol generator according to one aspect of the present disclosure for achieving the above and other objectives may include: determining an initial resistance value of a heater by a resistance detection sensor that outputs a signal corresponding to the resistance value of the heater when a stick is inserted into an insertion space formed in the housing; supplying power to the heater based on a predetermined temperature profile; determining whether to change the initial resistance value based on the heater temperature calculated based on the determined initial resistance value and a predetermined temperature; and, if it is decided to change the initial resistance value, changing the initial resistance value by the difference between the calculated heater temperature and the predetermined temperature. [Effects of the Invention]

[0009] According to at least one embodiment of the present disclosure, the initial resistance value of the heater can be updated based on the heater temperature during the preheating and / or heating phases.

[0010] According to at least one embodiment of the present disclosure, a certain amount of aerosol can be generated in the heating section by updating the initial resistance value of the heater.

[0011] According to at least one of the embodiments of the present disclosure, it is possible to accurately determine whether the aerosol product substance is exhausted in the preheating section and / or the heating section.

[0012] The applicable additional scope of the present disclosure will become apparent from the following detailed description. However, various changes and modifications within the spirit and scope of the present disclosure are clearly understandable to those skilled in the art, so the detailed description and specific examples such as the preferred embodiments of the present disclosure should be understood as being given merely by way of illustration.

[0013] The above and other objects, features and other features of the present disclosure will be clearly understandable from the following detailed description with reference to the accompanying drawings.

Brief Description of the Drawings

[0014] [Figure 1] It is a block diagram of an aerosol generating device according to an embodiment of the present disclosure. [Figure 2] It is a diagram for explaining an aerosol generating device according to an embodiment of the present disclosure. [Figure 3] It is a diagram for explaining an aerosol generating device according to an embodiment of the present disclosure. [Figure 4] It is a diagram for explaining an aerosol generating device according to an embodiment of the present disclosure. [Figure 5] It is a diagram for explaining a stick according to an embodiment of the present disclosure. [Figure 6] It is a diagram for explaining a stick according to an embodiment of the present disclosure. [Figure 7] It is a diagram for explaining a stick according to an embodiment of the present disclosure. [Figure 8] It is a flowchart showing an operation method of an aerosol generating device according to an embodiment of the present disclosure. [Figure 9] It is a flowchart showing an operation method of an aerosol generating device according to an embodiment of the present disclosure. [Figure 10] It is a diagram for explaining the operation of an aerosol generating device according to an embodiment of the present disclosure. [Figure 11]It is a diagram for explaining the operation of an aerosol generating device according to an embodiment of the present disclosure. [Figure 12] It is a diagram for explaining the operation of an aerosol generating device according to an embodiment of the present disclosure. [Figure 13] It is a diagram for explaining the operation of an aerosol generating device according to an embodiment of the present disclosure. [Figure 14] It is a diagram for explaining the operation of an aerosol generating device according to an embodiment of the present disclosure. [Figure 15] It is a diagram for explaining the operation of an aerosol generating device according to an embodiment of the present disclosure. [Figure 16] It is a diagram for explaining the operation of an aerosol generating device according to an embodiment of the present disclosure. [Figure 17] It is a diagram for explaining the operation of an aerosol generating device according to an embodiment of the present disclosure. [Figure 18] It is a diagram for explaining the operation of an aerosol generating device according to an embodiment of the present disclosure. [Figure 19] It is a diagram for explaining the operation of an aerosol generating device according to an embodiment of the present disclosure.

Embodiments for Carrying Out the Invention

[0015] Hereinafter, embodiments disclosed in this specification will be described in detail with reference to the accompanying drawings. The same or similar components are given the same reference numerals even if they are illustrated in different drawings, and duplicate descriptions thereof are omitted.

[0016] The suffixes "module" and "section" for components used in the following description are used only for the ease of explanation in the specification. "Module" and "section" do not have distinct meanings or roles from each other.

[0017] Furthermore, in subsequent descriptions of the embodiments disclosed herein, detailed explanations of related known technologies will be omitted if they could obscure the essence of the embodiments disclosed herein. The accompanying drawings are provided to facilitate understanding of the embodiments disclosed herein, and the accompanying drawings do not limit the technical ideas disclosed herein. Therefore, the accompanying drawings should be construed as including all modifications, equivalents, and substitutions included in the ideas and scope of this disclosure.

[0018] While ordinal terms such as "first," "second," etc., can be used to describe a variety of components, it should be understood that these components are not limited by these terms. These terms are used solely to distinguish one component from another.

[0019] When we say that one component is "linked" to another, it is understandable that other components may exist in between. On the other hand, when we say that one component is "directly linked" to another, it is understandable that there are no other components in between.

[0020] A singular expression includes plural expressions unless explicitly indicated otherwise in the context.

[0021] Figure 1 is a block diagram of an aerosol generating apparatus according to one embodiment of the present disclosure.

[0022] Referring to Figure 1, the aerosol generator 10 may include a communication interface 11, an input / output interface 12, an aerosol generation module 13, a memory 14, a sensor module 15, a battery 16, and / or a control unit 17.

[0023] In one embodiment, the aerosol generator 10 may consist only of a main body. In this case, the components included in the aerosol generator 10 may be located in the main body. In another embodiment, the aerosol generator 10 may consist of a cartridge for storing the aerosol-generating substance and a main body. In this case, the components included in the aerosol generator 10 may be located in at least one of the main body and the cartridge.

[0024] The communication interface 11 may include at least one communication module for communication with external devices and / or networks. For example, the communication interface 11 may include a communication module for wired communication such as USB (Universal Serial Bus). For example, the communication interface 11 may include a communication module for wireless communication such as WiFi (Wireless Fidelity) (registered trademark), Bluetooth (registered trademark), Bluetooth Low Power (BLE), Zigbee (registered trademark), and NFC (Near Field Communication).

[0025] The input / output interface 12 may include an input device that receives commands from the user and / or an output device that outputs information to the user. For example, the input device may include a touch panel, physical buttons, a microphone, etc. For example, the output device may include a display device that outputs visual information such as a display or light-emitting diode (LED), an audio device that outputs auditory information such as a speaker or buzzer, or a motor that outputs tactile information such as a haptic effect.

[0026] The input / output interface 12 can transmit data corresponding to commands input by the user via the input device to other components (etc.) of the aerosol generator 10. The input / output interface 12 can output information corresponding to data received from other components (etc.) of the aerosol generator 10 via the output device.

[0027] The aerosol generation module 13 can generate an aerosol from an aerosol-generating substance. Here, the aerosol-generating substance may be one or more substances in any of the various states that can generate aerosols, such as liquid, solid, or gel states, or a combination of two or more substances.

[0028] In one embodiment, the liquid aerosol-generating substance may be a liquid containing a tobacco-containing substance that includes volatile tobacco flavor components. In other embodiments, the liquid aerosol-generating substance may be a liquid containing a non-tobacco substance. For example, the liquid aerosol-generating substance may include water, solvent, nicotine, plant extracts, fragrances, flavorings, vitamin mixtures, and the like.

[0029] Solid aerosol-generating substances can include solid materials based on tobacco raw materials such as reconstituted tobacco sheets, shredded tobacco, and tobacco granules. They can also include solid materials containing flavor modifiers, seasonings, etc. For example, flavor modifiers can include calcium carbonate, sodium bicarbonate, calcium oxide, etc. Seasonings can include natural substances such as herbal granules, silica containing aromatic compounds, zeolite, dextrin, etc.

[0030] Furthermore, the aerosol-generating substance may further contain aerosol-forming agents such as glycerin and propylene glycol.

[0031] The aerosol generation module 13 may include at least one heater.

[0032] The aerosol generation module 13 may include an electrical resistance heater. For example, the electrical resistance heater may include at least one electrical conductive track, which can be heated by an electric current flowing through the electrical conductive track. Here, the aerosol-generating material can be heated by the heated electrical resistance heater.

[0033] Electrically conductive tracks may contain electrically resistive materials. For example, an electrically conductive track may be formed from a metallic material. Another example is that an electrically conductive track may be formed from a ceramic material, carbon, a metal alloy, or a composite material of a ceramic material and a metal.

[0034] Electrical resistance heaters can include electrically conductive tracks formed in various shapes. For example, the electrically conductive tracks can be formed in any one of the following shapes: tubular, plate-shaped, needle-shaped, rod-shaped, or coil-shaped.

[0035] The aerosol generation module 13 may include a heater using induction heating. For example, an induction heating heater may include an electrically conductive coil, and by adjusting the current flowing through the electrically conductive coil, an alternating magnetic field with periodically changing direction can be generated. When an alternating magnetic field is applied to a magnetic material, energy loss may occur in the magnetic material due to eddy current loss and hysteresis loss, and the lost energy is released as thermal energy, which can heat the aerosol-generating material adjacent to the magnetic material. Here, the object that generates heat due to the magnetic field can be called a susceptor.

[0036] On the other hand, the aerosol generation module 13 can also generate aerosols from aerosol-generating materials by generating ultrasonic vibrations.

[0037] The aerosol generation module 13 can be described as a cartomizer, atomizer, or vaporizer.

[0038] The memory 14 can store programs for each signal processing and control within the control unit 17, and can also store data processed by the control unit 17 and data to be processed.

[0039] For example, the memory 14 stores application programs designed for the purpose of performing various tasks that can be processed by the control unit 17, and can selectively provide some of the stored application programs when requested by the control unit 17.

[0040] For example, the memory 14 can store the operating time of the aerosol generator 10, the maximum number of puffs, the current number of puffs, the number of times the battery 16 has been charged, the number of times the battery 16 has been discharged, at least one temperature profile, data about the user's inhalation pattern, and data about charging and discharging. Here, a puff can mean the user's inhalation, which may be a situation in which the user draws something into their oral cavity, nasal cavity, or lungs through their mouth or nose.

[0041] The memory 14 may include at least one of the following: volatile memory (e.g., DRAM, SRAM, SDRAM, etc.) or non-volatile memory (e.g., flash memory, hard disk drive (HDD), solid-state drive (SSD), etc.).

[0042] The sensor module 15 may include at least one sensor.

[0043] For example, the sensor module 15 may include a sensor that detects puffs (hereinafter referred to as the puff sensor). Here, the puff sensor can be embodied by proximity sensors such as IR sensors, pressure sensors, gyroscopes, accelerometers, magnetic field sensors, and the like.

[0044] For example, the sensor module 15 may include a sensor that detects puffs (hereinafter referred to as the puff sensor). Here, the puff sensor can be embodied by a pressure sensor, a gyroscope, an accelerometer, a magnetic field sensor, and the like.

[0045] For example, the sensor module 15 may include a sensor (hereinafter referred to as a temperature sensor) that senses the temperature of the heater included in the aerosol generation module 13, the temperature of the aerosol generating material, etc. Here, the heater included in the aerosol generation module 13 can also serve as the temperature sensor. For example, the electrical resistive material of the heater may be a material that has a temperature coefficient of resistance. The sensor module 15 can sense the temperature of the heater by measuring the resistance of the heater, which changes with temperature.

[0046] For example, if a stick can be inserted into the main body of the aerosol generator 10, the sensor module 15 may include a sensor that detects the insertion of the stick (hereinafter referred to as the stick detection sensor).

[0047] For example, if the aerosol generator 10 includes a cartridge, the sensor module 15 may include a sensor (hereinafter referred to as a cartridge sensing sensor) that senses the attachment / detachment of the cartridge to / from the main unit, its position, etc.

[0048] Here, the stick sensing sensor and / or cartridge sensing sensor can be implemented by an inductance substrate sensor, a capacitive sensor, a resistive sensor, a Hall sensor (Hall IC) using the Hall effect, and the like.

[0049] For example, the sensor module 15 may include a voltage sensor that senses the voltage applied to a component (e.g., a battery 16) provided in the aerosol generator 10, and / or a current sensor that senses the current.

[0050] The battery 16 can supply power used to operate the aerosol generator 10 under the control of the control unit 17. The battery 16 can also supply power to other components of the aerosol generator 10. For example, the battery 16 can supply power to the communication module included in the communication interface 11, the output device included in the input / output interface 12, the heater included in the aerosol generation module 13, and so on.

[0051] Battery 16 may be a rechargeable battery or a disposable battery. For example, battery 16 may be, but is not limited to, a lithium-ion battery or a lithium polymer (Li-Polymer) battery. For example, if battery 16 is rechargeable, its charge rate (C-rate) may be 10C and its discharge rate (C-rate) may be 10C to 20C, but is not limited to these. Furthermore, for stable use, battery 16 may be manufactured to ensure that more than 80% of its total capacity is maintained even after 2000 charge-discharge cycles.

[0052] The aerosol generator 10 may further include a battery protection circuit module (PCM), which is a circuit for protecting the battery 16. The battery protection module (PCM) may be positioned adjacent to the top surface of the battery 16. For example, the battery protection module (PCM) can interrupt the circuit to the battery 16 in the event of a short circuit in a circuit connected to the battery 16, an overvoltage being applied to the battery 16, or an overcurrent flowing through the battery 16, in order to prevent overcharging and over-discharging of the battery 16.

[0053] The aerosol generator 10 may further include a charging terminal into which power supplied from an external source is input. For example, a charging terminal may be formed on one side of the main body of the aerosol generator 10, and the aerosol generator 10 can charge the battery 16 using power supplied through the charging terminal. Here, the charging terminal may consist of a wired terminal for USB communication, a pogo pin, or the like.

[0054] The aerosol generator 10 may further include a power terminal (not shown) into which power supplied from an external source is input. For example, a power line may be connected to a power terminal located on one side of the main body of the aerosol generator 10. The aerosol generator 10 can charge a battery using the power supplied via the power line connected to the power terminal. Here, the power terminal may be a wired terminal for USB communication.

[0055] The aerosol generator 10 can also wirelessly receive power supplied from an external source via the communication interface 11. For example, the aerosol generator 10 can receive power wirelessly using an antenna included in the communication module for wireless communication, and can charge the battery 16 using the wirelessly supplied power.

[0056] The control unit 17 can control the overall operation of the aerosol generator 10. The control unit 17 is connected to each component of the aerosol generator 10 and can transmit and / or receive signals to and from each component to control the overall operation of each component.

[0057] The control unit 17 may include at least one processor, which can be used to control the overall operation of the aerosol generator 10. Here, the processor may be a general-purpose processor such as a CPU (central processing unit). Of course, the processor may be a dedicated device such as an ASIC or a processor on another hardware base.

[0058] The control unit 17 can perform any one of several functions of the aerosol generator 10. For example, the control unit 17 can execute any one of several functions of the aerosol generator 10 (e.g., preheating function, heating function, charging function, cleaning function, etc.) depending on the state of each component of the aerosol generator 10, user commands received via the input / output interface 12, etc.

[0059] The control unit 17 can control the operation of each component of the aerosol generator 10 based on data stored in the memory 14. For example, based on data such as temperature profiles and user inhalation patterns stored in the memory 14, the control unit 17 can control the supply of a predetermined amount of power from the battery 16 to the aerosol generation module 13 for a predetermined time.

[0060] The control unit 17 can determine the occurrence of puffs via the puff sensor included in the sensor module 15. For example, the control unit 17 can check temperature changes, flow rate changes, pressure changes, voltage changes, etc., within the aerosol generator 10 based on the sensing values ​​of the puff sensor, and can determine the occurrence of puffs based on the results of the checks using the sensing values ​​of the puff sensor.

[0061] The control unit 17 can control the operation of each component of the aerosol generator 10 depending on whether or not puffing is performed and / or the number of puffs. For example, the control unit 17 can control whether the heater temperature is changed or maintained based on the temperature profile stored in the memory 14.

[0062] The control unit 17 can control the power supply to the heater to shut off under predetermined conditions. For example, the control unit 17 can control the power supply to the heater to shut off when the stick is removed and the cartridge is separated, when the number of puffs reaches a predetermined maximum number of puffs, when no puffs are detected for a predetermined period of time or when the remaining charge of the battery 16 falls below a predetermined value.

[0063] The control unit 17 can calculate the remaining amount of power stored in the battery 16 (hereinafter referred to as "remaining amount"). For example, the control unit 17 can calculate the remaining amount of battery 16 based on the sensing values ​​of the voltage sensor and / or current sensor included in the sensor module 15.

[0064] The control unit 17 can control the supply of power to the heater using at least one of the following methods: pulse width modulation (PWM) and proportional-integral-differential (PID).

[0065] For example, the control unit 17 can use a PWM method to control the supply of current pulses having a predetermined frequency and duty cycle to the heater. Here, the control unit 17 can control the power supplied to the heater by adjusting the frequency and duty cycle of the current pulses.

[0066] For example, the control unit 17 can determine a target temperature for control based on the temperature profile. Here, the control unit 17 can control the power supplied to the heater using a PID method, which is a feedback control method that uses the difference between the heater temperature and the target temperature, the value obtained by integrating the difference over time, and the value obtained by differentiating the difference over time.

[0067] On the other hand, while PWM and PID methods were described as examples of control methods for supplying power to the heater, the present invention is not limited to these, and various control methods such as proportional-integral (PI) and proportional-differential (PD) methods can be used.

[0068] On the other hand, the control unit 17 can control the heater to supply power under pre-set conditions. For example, if a cleaning function is selected to clean the space in which the stick is inserted according to a command input by the user via the input / output interface 12, the control unit 17 can control the heater to supply a predetermined amount of power.

[0069] Figures 2 to 4 illustrate an aerosol generating apparatus according to an embodiment of the present disclosure.

[0070] According to various embodiments of the present invention, the aerosol generating device 10 may include a main body 100 and / or a cartridge 200.

[0071] Referring to Figure 2, the aerosol generating device 10 according to one embodiment may include a main body 100 configured so that a stick 20 can be inserted into the space formed by the housing 101.

[0072] The stick 20 may be similar to a typical combustible cigarette. For example, the stick 20 may be divided into a first part containing an aerosol-generating substance and a second part containing a filter or the like. Alternatively, the second part of the stick 20 may also contain an aerosol-generating substance. For example, an aerosol-generating substance formed in the form of granules or capsules may be inserted into the second part.

[0073] The entire first part can be inserted into the aerosol generator 10, while the second part can be exposed to the outside. Alternatively, only a portion of the first part can be inserted into the aerosol generator 10, or both the first and second parts can be inserted. The user can inhale the aerosol while holding the second part in their mouth. Here, the aerosol is generated when outside air passes through the first part, and the generated aerosol can pass through the second part and be transmitted to the user's mouth.

[0074] The main body 100 may be formed to have a structure that allows external air to flow into the main body 100 when the stick 20 is inserted. Here, the external air that flows into the main body 100 can pass through the stick 20 and flow into the user's mouth.

[0075] The heater may be positioned within the body 100 at a location corresponding to the position of the stick 20 when the stick 20 is inserted into the body 100. In this drawing, the heater is shown as an electrically conductive heater 110 including needle-shaped electrically conductive tracks, but the present invention is not limited thereto.

[0076] The heater can heat the inside and / or outside of the stick 20 using power supplied from the battery 16. Here, an aerosol can be generated in the heated stick 20. Here, the user can inhale the tobacco-flavored aerosol by inhaling through one end of the stick 20 with their mouth.

[0077] On the other hand, the control unit 17 can also control the heater to supply power even when the stick 20 is not inserted, under pre-set conditions. For example, if a cleaning function is selected to clean the space where the stick 20 is inserted, according to a command input by the user via the input / output interface 12, the control unit 17 can control the heater to supply a predetermined amount of power.

[0078] The control unit 17 can monitor the number of puffs based on the sensing value of the puff sensor from the moment the stick 20 is inserted.

[0079] The control unit 17 can initialize the current puff count stored in the memory 14 when the inserted stick 20 is removed.

[0080] Referring to Figure 3, an aerosol generating device 10 according to one embodiment may include a main body 100 that supports a cartridge 200 and a cartridge 200 that stores aerosol generating material.

[0081] In one embodiment, the cartridge 200 may be configured to be detachably attached to the main body 100. In another embodiment, the cartridge 200 may be configured integrally with the main body 100. For example, the cartridge 200 may be attached to the main body 100 by inserting at least a portion of the cartridge 200 into the internal space formed by the housing 101 of the main body 100.

[0082] The main unit 100 may be constructed in such a way that external air can flow into the interior of the main unit 100 when the cartridge 200 is inserted. Here, the external air that flows into the main unit 100 can flow through the cartridge 200 to the user's mouth.

[0083] The control unit 17 can determine whether the cartridge 200 is attached or detached using the cartridge sensing sensor included in the sensor module 15. For example, the cartridge sensing sensor can transmit a pulse current through one terminal connected to the cartridge 200. Here, the cartridge sensing sensor can sense whether the cartridge 200 is connected or not based on whether a pulse current is received through the other terminal.

[0084] The cartridge 200 may include a heater 210 for heating an aerosol-generating substance and / or a storage section 220 for storing the aerosol-generating substance. For example, a liquid transfer means impregnated (containing) the aerosol-generating substance may be located inside the storage section 220. The electrically conductive track of the heater 210 may be formed in a structure that winds around the liquid transfer means. Here, an aerosol can be generated by heating the liquid transfer means with the heater 210. Here, the liquid transfer means may include a wick made of cotton fibers, ceramic fibers, glass fibers, or porous ceramic.

[0085] The cartridge 200 may include an insertion space 230 into which a stick 20 can be inserted. For example, the cartridge 200 may include an insertion space formed by an inner wall (not shown) extending circumferentially along the direction in which the stick 20 is inserted. Here, the insertion space may be formed by the inner side of the inner wall being open at the top and bottom. The stick 20 can be inserted into the insertion space 230 formed by the inner wall.

[0086] The insertion space into which the stick 20 is inserted may be formed in a shape corresponding to a part of the shape of the stick 20 inserted into the insertion space. For example, if the stick 20 is formed in a cylindrical shape, the insertion space may be formed in a cylindrical shape.

[0087] When the stick 20 is inserted into the insertion space, the outer surface of the stick 20 is surrounded by the inner wall and may come into contact with the inner wall.

[0088] A portion of the stick 20 is inserted into the insertion space 230 of the cartridge 200, while the remaining portion can be exposed to the outside.

[0089] The user can inhale the aerosol by holding one end of the stick 20 in their mouth. The aerosol generated by the heater 210 can pass through the stick 20 and be delivered to the user's mouth. As the aerosol passes through the stick 20, substances contained in the stick 20 are added to the aerosol, and the aerosol with the added substances can be inhaled into the user's oral cavity through one end of the stick 20.

[0090] Referring to Figure 4, an aerosol generating device 10 according to one embodiment may include a main body 100 that supports a cartridge 200, and a cartridge 200 that stores an aerosol generating substance. The main body 100 may be configured so that a stick 20 can be inserted into an insertion space 130.

[0091] The aerosol generator 10 may include a first heater for heating the aerosol-generating substance stored in the cartridge 200. For example, when a user inhales through one end of the stick 20, the aerosol generated by the first heater can pass through the stick 20. As the aerosol passes through the stick 20, flavoring may be added to it. The flavored aerosol can then be inhaled into the user's mouth through one end of the stick 20.

[0092] On the other hand, in other embodiments, the aerosol generator 10 may also include 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. For example, the aerosol generator 10 can also generate an aerosol by heating the aerosol-generating material stored in the cartridge 200 and the stick 20, respectively, with the first heater and the second heater.

[0093] Figures 5 to 7 illustrate a stick according to an embodiment of the present disclosure.

[0094] Referring to Figure 5, the stick 20 according to one embodiment may include a tobacco rod 21 and a filter rod 22. Referring to Figure 2, the first part described above may include the tobacco rod 21. Referring to Figure 2, the second part described above may include the filter rod 22.

[0095] Figure 5 shows the filter rod 22 as a single segment, but is not limited to this. In other words, the filter rod 22 may consist of multiple segments. For example, the filter rod 22 may include a first segment for cooling the aerosol and a second segment for filtering out predetermined components contained in the aerosol. Furthermore, the filter rod 22 may optionally include at least one additional segment that performs other functions.

[0096] The diameter of the stick 20 is in the range of 5mm to 9mm, and its length may be, but is not limited to, approximately 48mm. For example, the length of the tobacco rod 21 may be, but is not limited to, approximately 12mm, the length of the first segment of the filter rod 22 may be, approximately 10mm, the length of the second segment of the filter rod 22 may be, approximately 14mm, and the length of the third segment of the filter rod 22 may be, but is not limited to, approximately 12mm.

[0097] The stick 20 may be wrapped by at least one wrapper 24. The wrapper 24 may have at least one hole formed therein, through which external air enters or internal gases exit. As an example, the stick 20 may be wrapped by one wrapper 24. As another example, the stick 20 may be wrapped in layers by two or more wrappers 24. For example, the tobacco rod 21 may be wrapped by a first wrapper 241. For example, the filter rod 22 may be wrapped by wrappers 242, 243, and 244. The tobacco rod 21 and filter rod 22 wrapped by individual wrappers may be joined together, and the entire stick 20 may be further wrapped by a third wrapper. If each of the filter rods 22 consists of multiple segments, each segment may be wrapped by individual wrappers 242, 243, and 244. The entire stick 20, with the segments wrapped by individual wrappers joined together, may be further wrapped by other wrappers.

[0098] The first wrapper 241 and the second wrapper 242 can be made from general filter packaging paper. For example, the first wrapper 241 and the second wrapper 242 may be porous packaging paper or non-porous packaging paper. Alternatively, the first wrapper 241 and the second wrapper 242 may be made from oil-resistant paper and / or aluminum laminate packaging material.

[0099] The third wrapper 243 can be made from hard wrapping paper. For example, the basis weight of the third wrapper 243 may be in the range of 88 g / m² to 96 g / m². For example, the basis weight of the third wrapper 243 may be in the range of 90 g / m² to 94 g / m². Also, the thickness of the third wrapper 243 may be in the range of 120 μm to 130 μm. For example, the thickness of the third wrapper 243 may be 125 μm.

[0100] The fourth wrapper 244 can be made from oil-resistant hard packaging paper. For example, the basis weight of the fourth wrapper 244 may be in the range of 88 g / m² to 96 g / m². For example, the basis weight of the fourth wrapper 244 may be in the range of 90 g / m² to 94 g / m². Also, the thickness of the fourth wrapper 244 may be in the range of 120 μm to 130 μm. For example, the thickness of the fourth wrapper 244 may be 125 μm.

[0101] The fifth wrapper 245 can be made from sterile paper (MFW). Here, sterile paper (MFW) may be a specially manufactured paper that has improved tensile strength, water resistance, smoothness, etc., compared to ordinary paper. For example, the basis weight of the fifth wrapper 245 may be in the range of 57 g / m2 to 63 g / m2. For example, the basis weight of the fifth wrapper 245 may be 60 g / m2. 2 This is possible. Furthermore, the thickness of the fifth wrapper 245 can fall within the range of 64 μm to 70 μm. For example, the thickness of the fifth wrapper 245 could be 67 μm.

[0102] The fifth wrapper 245 may contain a predetermined substance. Here, an example of the predetermined substance may be silicon, but is not limited to silicon. For example, silicon may have properties such as heat resistance with little change due to temperature, oxidation resistance without oxidation, resistance to various chemicals, water repellency, or electrical insulation. However, any substance having the above-mentioned properties can be applied or coated to the fifth wrapper 245 without limitation, even if it is not silicon.

[0103] The fifth wrapper 245 can prevent the stick 20 from burning. For example, when the tobacco rod 21 is heated by the heater 210, the stick 20 may burn. Specifically, if the temperature rises above the flash point of any one of the materials contained in the tobacco rod 21, the stick 20 may burn. Even in such cases, the fifth wrapper 245 contains a non-combustible material, so it can prevent the stick 20 from burning.

[0104] Furthermore, the fifth wrapper 245 can prevent the main body 100 from being contaminated by substances generated in the stick 20. Liquid substances may be generated in the stick 20 by the user's puffing. For example, liquid substances (e.g., water) may be generated when the aerosol generated in the stick 20 is cooled by the outside air. By wrapping the stick 20 with the fifth wrapper 245, liquid substances generated in the stick 20 can be prevented from leaking out of the stick 20.

[0105] The tobacco rod 21 may contain an aerosol-generating substance. For example, the aerosol-generating substance 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. The tobacco rod 21 may also contain other additives such as flavoring agents, humectants, and / or organic acids. Furthermore, a flavoring liquid such as menthol or a humectant may be added to the tobacco rod 21 by spraying it.

[0106] The tobacco rod 21 can be manufactured in various ways. For example, the tobacco rod 21 can be made from a sheet. For example, the tobacco rod 21 can be made from a strand. For example, the tobacco rod 21 can be made from finely cut pieces of tobacco sheet. For example, the tobacco rod 21 can be surrounded by a heat conductive material. For example, the heat conductive material can be a metal foil such as aluminum foil, but is not limited to this. As an example, the heat conductive material surrounding the tobacco rod 21 can evenly distribute the heat transferred to the tobacco rod 21, improving the heat conductivity to the tobacco rod. Thus, the tobacco flavor can be improved. The heat conductive material surrounding the tobacco rod 21 can function as a susceptor heated by an induction heater. Here, although not shown in the drawings, the tobacco rod 21 may further include additional susceptors in addition to the heat conductive material surrounding the outside.

[0107] The filter rod 22 may be a cellulose acetate filter. On the other hand, there are no restrictions on the shape of the filter rod 22. For example, the filter rod 22 may be a cylindrical (type) rod. For example, the filter rod 22 may be a tubular (type) rod with a hollow interior. For example, the filter rod 22 may be a recessed (type) rod. If the filter rod 22 is composed of multiple segments, at least one of the multiple segments may be manufactured in a different shape.

[0108] The first segment of the filter rod 22 may be a cellulose acetate filter. For example, the first segment may be a tubular structure containing a hollow interior. The first segment can prevent the internal material of the tobacco rod 21 from being pushed backward when the heater 110 is inserted, and can also provide a cooling effect for the aerosol. The diameter of the hollow interior of the first segment can be within the range of 2 mm to 4.5 mm, but is not limited to this.

[0109] The length of the first segment can be set to an appropriate length within the range of 4 mm to 30 mm, but is not limited to this. For example, the length of the first segment could be 10 mm, but is not limited to this.

[0110] The second segment of the filter rod 22 cools the aerosol generated when the heater 110 heats the tobacco rod 21. Thus, the user can inhale the aerosol cooled to a suitable temperature.

[0111] The length or diameter of the second segment can be determined in various ways depending on the form of the stick 20. For example, the length of the second segment can be appropriately adopted within the range of 7 mm to 20 mm. Preferably, the length of the second segment may be about 14 mm, but is not limited to this.

[0112] The second segment can be manufactured by weaving polymer fibers. In this case, a flavoring liquid can be applied to the polymer fibers. Alternatively, the second segment can be manufactured by weaving together a separate fiber coated with a flavoring liquid and a polymer fiber. Alternatively, the second segment can be formed from a crimped polymer sheet.

[0113] For example, polymers can be made from materials 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.

[0114] Since the second segment is formed from woven polymer fibers or a crimped polymer sheet, the second segment may include one or more longitudinally extending channels, where the channels may be passages through which a gas (e.g., air or aerosol) passes.

[0115] For example, the second segment, which consists of a crimped polymer sheet, may be formed from a material having a thickness between approximately 5 μm and approximately 300 μm, for example, between approximately 10 μm and approximately 250 μm. The total surface area of ​​the second segment is approximately 300 mm². 2 / mm and approximately 1000mm 2 It can be between / mm. Also, the aerosol cooling element has a specific surface area of ​​approximately 10 mm². 2 / mg and approximately 100mm 2 It can be formed from materials between / mg.

[0116] On the other hand, the second segment may include a thread containing a volatile flavor component. Here, the volatile flavor component may be, but is not limited to, menthol. For example, the thread may be filled with a sufficient amount of menthol to provide 1.5 mg or more of menthol to the second segment.

[0117] The third segment of the filter rod 22 may be a cellulose acetate filter. The length of the third segment can be appropriately adopted within the range of 4 mm to 20 mm. For example, the length of the third segment may be approximately 12 mm, but is not limited to this.

[0118] The filter rod 22 may be manufactured to generate flavor. For example, a flavoring liquid may be sprayed onto the filter rod 22. For example, a separate fiber coated with a flavoring liquid may be inserted into the filter rod 22.

[0119] Furthermore, the filter rod 22 may include at least one capsule 23. Here, the capsule 23 may perform the function of generating flavor. The capsule 23 may also perform the function of generating aerosol. For example, the capsule 23 may have a structure in which a liquid containing a flavor is enclosed in a film. The capsule 23 may be spherical or cylindrical, but is not limited to these.

[0120] Referring to Figure 6, the stick 30 according to one embodiment may further include a front plug 33. The front plug 33 is located on one side of the tobacco rod 31 opposite the filter rod 32. The front plug 33 can prevent the tobacco rod 31 from detaching to the outside. The front plug 33 can prevent liquefied aerosol from the tobacco rod 31 from flowing into the aerosol generator 10 during smoking.

[0121] 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 in Figure 5. The second segment 322 may correspond to the third segment of the filter rod 22 in Figure 5.

[0122] The diameter and overall length of stick 30 may correspond to the diameter and overall length of stick 20 in Figure 5. For example, the length of the front plug 33 may be approximately 7 mm, the length of the tobacco rod 31 may be approximately 15 mm, the length of the first segment 321 may be approximately 12 mm, and the length of the second segment 322 may be approximately 14 mm, but are not limited to these.

[0123] The stick 30 may be wrapped by at least one wrapper 35. The wrapper 35 may have at least one hole through which external air enters or internal gases exit. For example, the front plug 33 may be wrapped by a first wrapper 351, the tobacco rod 31 by a second wrapper 352, the first segment 321 by a third wrapper 353, and the second segment 322 by a fourth wrapper 354. The entire stick 30 may then be rewrapped by a fifth wrapper 355.

[0124] Furthermore, at least one perforation 36 may be formed in the fifth wrapper 355. For example, the perforation 36 may be formed in the region surrounding the tobacco rod 31, but is not limited to this. For example, the perforation 36 may serve to transfer heat generated by the heater 210 shown in Figure 3 into the interior of the tobacco rod 31.

[0125] Also, the second segment 322 can include at least one capsule 34. Here, the capsule 34 can also perform a function of generating a fragrance. The capsule 34 can also perform a function of generating an aerosol. For example, the capsule 34 can have a structure in which a liquid containing a fragrance is wrapped with a film. The capsule 34 can have a spherical or cylindrical shape, but is not limited thereto.

[0126] The first wrapper 351 can be formed by bonding a metal foil such as an aluminum foil to a general filter wrapping paper. For example, the total thickness of the first wrapper 351 can be included in the range of 45 μm to 55 μm. For example, the total thickness of the first wrapper 351 can be 50.3 μm. Also, the thickness of the metal foil of the first wrapper 351 can be included in the range of 6 μm to 7 μm. For example, the thickness of the metal foil of the first wrapper 351 can be 6.3 μm. Also, the basis weight of the first wrapper 351 is 50 g / m 2 ~55 g / m 2 and can be included in the range. For example, the basis weight of the first wrapper 351 can be 53 g / m 2 and can be.

[0127] The second wrapper 352 and the third wrapper 353 can be made from a general filter wrapping paper. For example, the second wrapper 352 and the third wrapper 353 can be porous wrapping paper or non-porous wrapping paper.

[0128] For example, the porosity of the second wrapper 352 can be 35000 CU, but is not limited thereto. Also, the thickness of the second wrapper 352 can be included in the range of 70 μm to 80 μm. For example, the thickness of the second wrapper 352 can be 78 μm. Also, the basis weight of the second wrapper 352 is 20 g / m​​​​​​​​​For example, the porosity of the third wrapper 353 may be, but is not limited to, 24,000 CU. The thickness of the third wrapper 353 may be in the range of 60 μm to 70 μm. For example, the thickness of the third wrapper 353 may be 68 μm. The basis weight of the third wrapper 353 may be in the range of 20 g / m² to 25 g / m². For example, the basis weight of the third wrapper 353 may be 21 g / m². 2 It is possible.

[0130] The fourth wrapper 354 can be made from PLA laminated paper. Here, the PLA laminated paper may be a triple-layered paper consisting of a paper layer, a PLA layer, and another paper layer. For example, the thickness of the fourth wrapper 354 may be in the range of 100 μm to 120 μm. For example, the thickness of the fourth wrapper 354 may be 110 μm. The basis weight of the fourth wrapper 354 is 80 g / m². 2 ~100g / m 2 It may fall within that range. For example, the basis weight of the fourth wrapper 354 is 88 g / m². 2 It is possible.

[0131] The fifth wrapper 355 can be made from sterile paper (MFW). Here, sterile paper (MFW) may be a specially manufactured paper that has improved tensile strength, water resistance, smoothness, etc., compared to ordinary paper. For example, the basis weight of the fifth wrapper 355 is 57 g / m². 2 ~63g / m 2 It may fall within that range. For example, the basis weight of the 5th wrapper 355 is 60 g / m². 2 This is possible. Furthermore, the thickness of the fifth wrapper 355 can be in the range of 64 μm to 70 μm. For example, the thickness of the fifth wrapper 355 could be 67 μm.

[0132] The fifth wrapper 355 may contain a predetermined substance. Here, an example of the predetermined substance may be silicon, but is not limited to it. For example, silicon has properties such as heat resistance with little change due to temperature, oxidation resistance that prevents oxidation, resistance to various chemicals, water repellency, or electrical insulation. However, any substance having the above-mentioned properties can be applied (or coated) to the fifth wrapper 355 without limitation, even if it is not silicon.

[0133] The front plug 33 can be made from cellulose acetate. For example, the front plug 33 can be made by adding a plasticizer (e.g., triacetin) to cellulose acetate toe. The mono denier of the filament constituting the cellulose acetate toe can be in the range of 1.0 to 10.0. For example, the mono denier of the filament constituting the cellulose acetate toe can be in the range of 4.0 to 6.0. For example, the mono denier of the filament of the front plug 33 may be 5.0. Also, the cross-section of the filament constituting the front plug 33 may be Y-shaped. The total denier of the front plug 33 can be in the range of 20,000 to 30,000. For example, the total denier of the front plug 33 may be in the range of 25,000 to 30,000. For example, the total denier of the front plug 33 may be 28,000.

[0134] Furthermore, the front plug 33 may include at least one channel, if necessary. The cross-section of the channel can be manufactured in a variety of shapes.

[0135] The tobacco rod 31 can correspond to the tobacco rod 21 described above, as shown in Figure 5. Therefore, a detailed explanation of the tobacco rod 31 will be omitted below.

[0136] The first segment 321 may be made from cellulose acetate. For example, the first segment may be a tubular structure containing a hollow interior. The first segment 321 can be made by adding a plasticizer (e.g., triacetin) to cellulose acetate. For example, the monodenier and total denier of the first segment 321 may be the same as the monodenier and total denier of the front plug 33.

[0137] The second segment 322 can be made from cellulose acetate. The mono denier of the filament constituting the second segment 322 can be in the range of 1.0 to 10.0. For example, the mono denier of the filament of the second segment 322 can be 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. Also, the cross-section of the filament of the second segment 322 may be Y-shaped. The total denier of the second segment 322 can be in the range of 20,000 to 30,000. For example, the total denier of the second segment 322 may be 25,000.

[0138] Referring to Figure 7, the stick 40 may include a medium section 410. The stick 40 may include a cooling section 420. The stick 40 may include a filter section 430. The cooling section 420 may be positioned between the medium section 410 and the filter section 430. The stick 40 may include a wrapper 440. The wrapper 440 may enclose the medium section 410. The wrapper 440 may enclose the cooling section 420. The wrapper 440 may enclose the filter section 430. The stick 40 may have a cylindrical shape.

[0139] The medium section 410 may include a medium 411. The medium section 410 may include a first medium cover 413. The medium section 410 may include a second medium cover 415. The medium 411 may be positioned between the first medium cover 413 and the second medium cover 415. The first medium cover 413 may be positioned at one end of the stick 40. The length of the medium section 410 may be 24 mm.

[0140] The medium 411 can contain substances with diverse components. The substances contained in the medium may be flavor substances with diverse components. The medium 411 may consist of a plurality of granules. Each of the plurality of granules may have a size of 0.4 mm to 1.12 mm. The inside of the medium 411 may be filled to about 70% with granules. The length L2 of the medium 411 may be 10 mm. The first medium cover 413 may be made of acetate material. The second medium cover 415 may be made of acetate material. The first medium cover 413 may be made of paper material. The second medium cover 415 may be made of paper material. At least one of the first medium cover 413 and the second medium cover 415 may be made of paper material and have a wrinkled shape, and a plurality of gaps may be formed between them for air to flow. The gaps 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.

[0141] Therefore, each granule of the medium 411 cannot detach from the medium portion 410 and the stick 40.

[0142] The cooling section 420 may have a cylindrical shape. The cooling section 420 may have a hollow shape. The cooling section 420 may be positioned between the medium section 410 and the filter section 430. The cooling section 420 may be positioned between the second medium section 415 and the filter section 430. The cooling section 420 may be formed in a tubular shape surrounding the internal cooling passage 424. The cooling section 420 may be thicker than the wrapper 440. The cooling section 420 may be made of a paper material thicker than the wrapper 440. The length L4 of the cooling section 420 may be the same as or approximately the same as the length L2 of the medium 411. The length L4 of the cooling section 420 and the cooling passage 424 may be 10 mm. When the stick 40 is inserted into the aerosol generator 10, at least a portion of the cooling section 420 may be exposed to the outside of the aerosol generator 10.

[0143] Therefore, the cooling unit 420 supports the medium unit 410 and the filter unit 430, ensuring the rigidity of the stick 40. Furthermore, the cooling unit 420 supports the wrapper 440 between the medium unit 410 and the filter unit 430, securing the area where the wrapper 440 is bonded. Additionally, heated air and aerosols can be cooled as they pass through the cooling passage 424 inside the cooling unit 420.

[0144] The filter section 430 may be composed of an acetate filter. The filter section 430 may be located at the other end of the stick 40. When the stick 40 is inserted into the aerosol generator 10, the filter section 430 may be exposed to the outside of the aerosol generator 10. The user can inhale air by holding the filter section 430 in their mouth. The length L5 of the filter section 430 may be 14 mm.

[0145] The wrapper 440 can wrap around or surround the medium portion 410, the cooling portion 420, and the filter portion 430. The wrapper 440 can form the outer shape of the stick 40. The wrapper 440 may be made of paper material. An adhesive portion 441 may be formed on one end of the wrapper 440. The wrapper 440 wraps around the medium portion 410, the cooling portion 420, and the filter portion 430, and the adhesive portion 441 formed on one side edge may be bonded to the other side edge. The wrapper 440 that wraps around the medium portion 410, the cooling portion 420, and the filter portion 430 does not have to cover one end and the other end of the stick 40.

[0146] Therefore, the wrapper 440 can fix the medium section 410, the cooling section 420, and the filter section 430, preventing them from detaching from the stick 40.

[0147] The first thin film 443 may be positioned in a location corresponding to the first medium cover 413. The first thin film 443 may be positioned between the wrapper 440 and the first medium cover 413, or 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 metallic material. The first thin film 443 may be made of an aluminum material. The first thin film 443 may be in contact with or coated on the wrapper 440.

[0148] The second thin film 445 may be positioned in a location corresponding to the second medium cover 415. The second thin film 445 may be positioned between the wrapper 440 and the second medium cover 415, or outside the wrapper 440. The second thin film 445 may be made of a metallic material. The second thin film 445 may be made of an aluminum material. The second thin film 445 may be in close contact with or coated on the wrapper 440.

[0149] Figure 8 is a flowchart showing the operation method of an aerosol generating apparatus according to one embodiment of the present disclosure.

[0150] Referring to Figure 8, the aerosol generator 10 can detect the insertion of the stick 20 in the S810 operation. For example, the aerosol generator 10 can detect the insertion of the stick 20 into the insertion space 130 formed in the housing of the main body 100 or the insertion space 230 formed in the housing of the cartridge 200 by the stick sensing sensor included in the sensor module 15.

[0151] The aerosol generator 10 can determine the initial resistance value of the heater when the stick 20 is inserted, in S820 operation. The initial resistance value of the heater can be set as the resistance value of the heater at a reference temperature, which forms the basis for determining the heater temperature. For example, the initial resistance value of the heater can be set as the resistance value of the heater at 25°C. The determination of the initial resistance value of the heater will be explained with reference to Figure 10.

[0152] Referring to Figure 10, the aerosol generator 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.

[0153] According to one embodiment of the present disclosure, the main unit 100 may be equipped with a resistance detection sensor 150, a puff sensor 155, a battery 16 and / or a power supply circuit 160. The cartridge 200 may be equipped with a heater 210.

[0154] When the main unit 100 and the cartridge 200 are coupled, the resistance detection sensor 150 of the main unit 100 can 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.

[0155] The power supply circuit 160 located inside the main unit 100 can supply power to the heater 210 using the power stored in the battery 16. Here, the power supplied from the power supply circuit 160 to the heater 210 can be adjusted by the control unit 17.

[0156] The power supply circuit 160 may include at least one switching element that operates under the control of the control unit 17. Here, the operation of the switching element can supply power to the heater 210. For example, the switching element may be a bipolar junction transistor (BJT) or a field-effect transistor (FET).

[0157] When the heater 210 and the resistance detection sensor 150 are electrically connected, the same level of current can flow through both the heater 210 and the resistance detection sensor 150. Here, the resistance value Rs of the shunt resistor provided in the resistance detection sensor 150 may be a value that does not change with temperature.

[0158] The control unit 17 can determine the voltage V1 applied to 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, etc. The control unit 17 can 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. Here, the control unit 17 can calculate the voltage applied to the heater 210 as the 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. Furthermore, the control unit 17 can 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.

[0159] Therefore, even while the core is being heated by the heater 210, the control unit 17 can determine the temperature of the heater 210 in real time using the current flowing through the heater 210, which is calculated via the resistance detection sensor 150.

[0160] On the other hand, the resistance of the heater 210 may be that of a material having a temperature coefficient of resistance, and the resistance value Rh of the heater 210 may change with the temperature of the resistance. The control unit 17 can calculate the temperature of the heater 210 using a calculation formula for the heater 210, based on the temperature coefficient of resistance of the heater 210, the resistance value Rh of the heater 210, and the resistance value of the heater 210 at a reference temperature. Here, the calculation formula for the temperature of the heater 210 can be expressed by the following mathematical formula 1.

[0161] (Math 1) TCR = (R1 - R0) / R0 ÷ (T1 - T0)

[0162] In the above mathematical formula 1, TCR is the temperature coefficient of the 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 may be the resistance value of the heater 210 at the reference temperature. Here, T0 is 25°C, and R0 may be the resistance value of the heater 210 at 25°C.

[0163] On the other hand, while this drawing illustrates a current sensor connected in series with the heater 210, the present invention is not limited to this, and resistance detection sensors 150 can also be provided, such as a temperature sensor positioned adjacent to the heater 210 to sense the temperature of the heater 210, or a voltage sensor to sense the voltage applied to the heater 210.

[0164] Referring also to Figure 8, the aerosol generator 10 can supply power to the heater in S830 operation. For example, the aerosol generator 10 can supply power to the heater based on the temperature profile stored in memory 14.

[0165] According to one embodiment, the aerosol generator 10 can preheat the heater by supplying power to it during the preheating section. Here, "preheating" may mean maintaining or increasing the heater temperature to a certain level for aerosol generation, such as after the stick 20 is inserted but before puffing is detected, or when puffing is completed with the stick 20 inserted. For example, when the stick 20 is inserted, the aerosol generator 10 can supply a predetermined amount of power to the heater during the preheating section based on the temperature profile stored in the memory 14.

[0166] According to one embodiment, the aerosol generator 10 can heat the heater by supplying power to it in the heating section. For example, the aerosol generator 10 can determine whether a puff is detected by the puff sensor 155. If a puff is detected, the aerosol generator 10 can heat the heater. The aerosol generator 10 can supply power to the heater based on a predetermined temperature profile stored in the memory 14 so that the heater temperature rises to a temperature suitable for aerosol generation. Alternatively, the aerosol generator 10 can preheat the heater based on a predetermined temperature profile stored in the memory 14 before a puff is detected.

[0167] According to one embodiment, the power supplied to the heater during the preheating section can vary depending on the number of puffs, the time elapsed during the preheating section, and so on. For example, a predetermined power supplied to the heater during a predetermined time in the initial preheating section may be set higher than the predetermined power supplied to the heater in subsequent preheating sections.

[0168] According to one embodiment, the power supplied to the heater in the heating section may vary depending on the number of puffs, the time elapsed in the heating section, and so on. For example, the power supplied to the heater while a puff is detected may decrease as time passes while a puff is detected.

[0169] The aerosol generator 10 can determine whether to change the initial resistance value of the heater in S840 operation.

[0170] According to one embodiment, the aerosol generator 10 can determine whether to change the initial resistance value of the heater based on the heater temperature and a predetermined temperature range. For example, the aerosol generator 10 can determine that it is necessary to change the initial resistance value of the heater if the heater temperature is not within the predetermined temperature range. This will be explained with reference to Figure 9.

[0171] Referring to Figure 9, the aerosol generator 10 can supply a first power to the heater in S910 operation. Here, the first power may be a predetermined power supplied to the heater based on a temperature profile stored in memory 14 for each section in which power is supplied to the heater. For example, in the preheating section, the aerosol generator 10 can supply a predetermined first power to the heater based on a temperature profile stored in memory 14. For example, in the heating section, the aerosol generator 10 can supply a first power corresponding to a temperature profile stored in memory 14 to the heater so that the heater temperature rises to a temperature for aerosol generation.

[0172] In operation S920, the aerosol generator 10 can determine whether the heater temperature is above a predetermined first temperature while the first power is supplied to the heater. Here, the first temperature may correspond to the maximum heater temperature set for each section in which power is supplied to the heater. For example, the first temperature in the preheating section may correspond to the temperature set as the maximum heater temperature in the preheating section. For example, the first temperature in the heating section may correspond to the temperature set as the maximum heater temperature in the heating section. In operation S930, if the heater temperature is above the first temperature, the aerosol generator 10 can change the power supplied to the heater to a second power lower than the first power. For example, in the preheating section, if the heater temperature is above the first temperature while the heater is preheating with 0.5W of power, the aerosol generator 10 can change the power supplied to the heater to 0.3W. For example, in the heating section, if the heater temperature is above the first temperature while the heater is heating with 8W of power, the aerosol generator 10 can change the power supplied to the heater to 4W. Here, the second power in the heating section may be less than or equal to the minimum power required for aerosol generation.

[0173] According to one embodiment, the second power can be determined based on a predetermined power supplied to the heater for each section in which power is supplied to the heater. For example, the second power in the preheating section may be set lower by a predetermined amount than the predetermined power supplied to the heater in the preheating section. For example, the second power in the preheating section may be set lower by a certain percentage than the predetermined power supplied to the heater in the preheating section. For example, the second power in the heating section may be set lower by a predetermined amount than the predetermined power supplied to the heater in the heating section. For example, the second power in the heating section may be set lower by a certain percentage than the predetermined power supplied to the heater in the heating section.

[0174] The aerosol generator 10, in S940 operation, can determine whether the heater temperature is above a predetermined second temperature while the second power is supplied to the heater. Here, the second temperature may be the temperature corresponding to the exhaustion of the aerosol-generating substance for each section in which power is supplied to the heater. For example, the second temperature set for each section may be set to a temperature higher than the predetermined first temperature for each section.

[0175] In S950 operation, the aerosol generator 10 can cut off the power supply to the heater if the heater temperature is above the second temperature. That is, the aerosol generator 10 can determine that the aerosol generating material has been exhausted if the heater temperature is above the second temperature while the second power is being supplied to the heater. For example, in the preheating section, the aerosol generator 10 can interrupt the preheating of the heater in response to the exhaustion of the aerosol generating material. For example, in the heating section, the aerosol generator 10 can interrupt aerosol generation in response to the exhaustion of the aerosol generating material.

[0176] On the other hand, the aerosol generator 10, in S960 operation, can determine if the heater temperature is below the third temperature if the heater temperature is below the first temperature. Here, the third temperature may correspond to the lowest heater temperature set for each section in which power is supplied to the heater. For example, the third temperature in the preheating section may correspond to the temperature set as the lowest heater temperature in the preheating section. For example, the third temperature in the heating section may correspond to the temperature set as the lowest heater temperature in the heating section.

[0177] In operation S970, the aerosol generator 10 may decide to change the initial resistance value of the heater if it determines that the heater temperature is above the first temperature, below the second temperature, or below the third temperature. On the other hand, if the heater temperature is below the first temperature and above the third temperature, the aerosol generator 10 may maintain the initial resistance value of the heater.

[0178] Referring to Figure 8, if the aerosol generator 10 decides to change the initial resistance value of the heater in S850 operation, the initial resistance value of the heater can be changed by the temperature difference between the heater temperature and a predetermined reference temperature. Here, the predetermined reference temperature may be included in a predetermined temperature range. For example, in the preheating section, the predetermined reference temperature may be the target temperature of the heater in the preheating section. For example, in the heating section, the predetermined reference temperature may be the target temperature of the heater in the heating section.

[0179] According to one embodiment, the change in the initial resistance value can be proportional to the temperature difference between the heater temperature and a predetermined reference temperature. For example, if the heater temperature exceeds a predetermined temperature range, the aerosol generator 10 can increase the initial resistance value of the heater in proportion to the difference between the heater temperature and the reference temperature. For example, if the heater temperature is lower than a predetermined temperature range, the aerosol generator 10 can decrease the initial resistance value of the heater in proportion to the difference between the heater temperature and the reference temperature.

[0180] On the other hand, according to one embodiment, the aerosol generator 10 can adjust the power supply to the heater depending on whether the puff sensor included in the sensor module 15 detects a puff. For example, the aerosol generator 10 can interrupt preheating of the heater when a puff is detected. For example, the aerosol generator 10 can continue heating the heater as long as puffs are detected. For example, the aerosol generator 10 can interrupt heating when puff detection ends. For example, the aerosol generator 10 can resume preheating of the heater when puff detection ends. Here, the aerosol generator 10 can perform preheating of the heater based on the initial resistance value of the heater set in the previous preheating section or previous heating section.

[0181] On the other hand, according to one embodiment, the aerosol generator 10 can reset the initial resistance value of the heater when the stick 20 is removed. That is, the aerosol generator 10 can re-determine the initial resistance value of the heater each time the stick 20 is inserted into the insertion spaces 130, 230 formed in the main body 100 or cartridge 200 by the stick sensing sensor included in the sensor module 15.

[0182] Referring to Figures 11 and 12, if the liquid transfer means contains a sufficient amount of aerosol-generating material, the heater temperature can be maintained at a constant level corresponding to the target temperature T0 in the preheating section while the first power P1 is supplied to the heater during the preheating section. On the other hand, if the aerosol-generating material is depleted, the heater temperature can rise above the first temperature T1 set for the preheating section while the first power P1 is supplied to the heater during the preheating section.

[0183] The aerosol generator 10 can change the power supplied to the heater to a second power P2, which is lower than the first power P1, when the heater temperature is equal to or higher than the first temperature T1 set for the preheating section. Here, if the aerosol generating material is exhausted, the heater temperature may continue to rise even if the power supplied to the heater is changed to a second power P2, which is lower than the first power P1. In other words, if the liquid transfer means does not contain aerosol generating material due to the exhaustion of the aerosol generating material, the heater temperature may rise despite relatively low power.

[0184] The aerosol generator 10 can shut off the power supply to the heater when the heater temperature is above the second temperature T2 set for the preheating section while the second power P2 is supplied to the heater during the preheating section.

[0185] On the other hand, referring to Figures 13 and 14, if the aerosol-generating substance is not completely depleted, the heater temperature may rise to a predetermined first temperature T1 or higher while the first power P1 is supplied to the heater during the preheating section. For example, if the amount of aerosol-generating substance flowing into the liquid transfer means temporarily decreases while the aerosol-generating substance is not completely depleted, the heater temperature may rise to a predetermined first temperature T1 or higher during the preheating section.

[0186] The aerosol generator 10 can change the power supplied to the heater to a second power P2 which is lower than the first power P1 when the heater temperature is equal to or higher than the first temperature T1 set for the preheating section. If the power supplied to the heater is changed to the second power P2 when the aerosol generating material has not been completely consumed, the heater temperature may fall below the first temperature T1 or be maintained at the first temperature T1.

[0187] The aerosol generator 10 may decide to change the initial resistance value of the heater if the heater temperature is above the first temperature but below the second temperature during the preheating period. When the aerosol generator 10 decides to change the initial resistance value of the heater, it can do so by adjusting the temperature difference between the heater temperature and a predetermined reference temperature. For example, the aerosol generator 10 can increase the initial resistance value of the heater by adjusting the temperature difference between the maximum heater temperature calculated during the preheating period and the predetermined reference temperature. In this way, when the initial resistance value of the heater increases, the actual temperature of the heater may exceed the target temperature as the aerosol generator 10 raises the heater temperature to the target temperature. This allows for the generation of a constant amount of aerosol even when the amount of aerosol-generating material flowing through the liquid transfer means temporarily decreases.

[0188] On the other hand, referring to Figure 15, if the aerosol-generating substance is not completely depleted, the heater temperature may fall below a predetermined third temperature T3 while the first power P1 is supplied to the heater during the preheating section. For example, if the amount of aerosol-generating substance flowing into the liquid transfer means temporarily increases while the aerosol-generating substance is not completely depleted, the heater temperature may fall below a predetermined third temperature T3 during the preheating section.

[0189] The aerosol generator 10 may decide to change the initial resistance value of the heater if the heater temperature is below a predetermined third temperature T3 during the preheating section. When the aerosol generator 10 decides to change the initial resistance value of the heater, it can do so by adjusting the temperature difference between the heater temperature and a reference temperature set for the preheating section. For example, the aerosol generator 10 can reduce the initial resistance value of the heater by adjusting the temperature difference between the lowest heater temperature calculated during the preheating section and the reference temperature set for the preheating section. In this way, when the initial resistance value of the heater is reduced, the actual temperature of the heater may be lower than the target temperature as the aerosol generator 10 raises the heater temperature to the target temperature. This allows for the generation of a constant amount of aerosol even when the amount of aerosol-generating material flowing through the liquid transfer means temporarily increases.

[0190] On the other hand, referring to Figure 16, when inserting the stick 20, a resistance value different from the actual resistance value at the reference temperature may be set as the initial resistance value of the heater. For example, if the cartridge 200 is stored in a space with a high ambient temperature, and the time interval between the removal of the stick 20 from the insertion spaces 130 and 230 and its reinsertion is short, a resistance value higher than the actual resistance value at the reference temperature may be set as the initial resistance value of the heater. For example, if the cartridge 200 is stored in a space with a low ambient temperature, a resistance value lower than the actual resistance value at the reference temperature may be set as the initial resistance value of the heater.

[0191] If the initial resistance of the heater is set lower than the actual resistance at the reference temperature, the heater temperature 1610 calculated while the first power is supplied to the heater during the subsequent preheating section may be higher than or equal to the highest temperature Thigh in the preheating section. On the other hand, if the initial resistance of the heater is set higher than the actual resistance at the reference temperature, the heater temperature 1620 calculated while the first power is supplied to the heater during the subsequent preheating section may be lower than the lowest temperature Tlow in the preheating section.

[0192] The aerosol generator 10 may decide to change the initial resistance value of the heater if the heater temperature is not within a predetermined temperature range during the preheating section. In this case, if the aerosol generator 10 decides to change the initial resistance value of the heater, it may change the initial resistance value of the heater based on the temperature difference between the heater temperatures 1610 and 1620 and the reference temperature 1600 set for the preheating section.

[0193] Referring to Figure 17, in the heating section, the heater temperature may rise as first power corresponding to the temperature profile stored in memory 14 for aerosol generation is supplied to the heater. Here, if the aerosol-generating material is exhausted, the heater temperature may rise to a first temperature T1 set for the heating section as first power is supplied to the heater in the heating section.

[0194] The aerosol generator 10 can change the power supplied to the heater to a second power, which is lower than the first power, when the heater temperature is equal to or higher than the first temperature T1 set for the heating section. Here, if the aerosol generating material is exhausted, the heater temperature may continue to rise even if the power supplied to the heater is changed to a second power, which is lower than the first power. In other words, if the liquid transfer means does not contain aerosol generating material due to the exhaustion of the aerosol generating material, the heater temperature may rise despite relatively low power.

[0195] The aerosol generator 10 can shut off the power supply to the heater when the heater temperature is above the second temperature T2 set for the heating section, while the second power is being supplied to the heater in the heating section.

[0196] On the other hand, referring to Figure 18, if the aerosol-generating substance is not completely depleted, the heater temperature may rise to a first temperature T1 set for the heating section while the first power is supplied to the heater in the heating section. For example, if the amount of aerosol-generating substance flowing into the liquid transfer means temporarily decreases while the aerosol-generating substance is not completely depleted, the heater temperature may rise to a first temperature T1 set for the heating section.

[0197] The aerosol generator 10 can change the power supplied to the heater to a second power P2 which is lower than the first power P1 when the heater temperature is equal to or higher than the first temperature T1 set for the heating section. Here, if the power supplied to the heater is changed to the second power P2 when the aerosol generating material has not been exhausted, the heater temperature may be lowered to less than the first temperature T1 set for the heating section, or maintained at a constant level.

[0198] On the other hand, the aerosol generator 10 may decide to change the initial resistance value of the heater if the heater temperature is above a first temperature T1 and below a second temperature T2 set for the heating section. Here, when the aerosol generator 10 decides to change the initial resistance value of the heater, it can change the initial resistance value of the heater by the temperature difference between the heater temperature and the reference temperature set for the heating section. For example, the aerosol generator 10 can increase the initial resistance value of the heater by the temperature difference between the maximum heater temperature calculated in the heating section and the reference temperature set for the heating section. In this way, when the initial resistance value of the heater is increased, the actual temperature of the heater may become higher than the target temperature while the aerosol generator 10 is raising the heater temperature to the target temperature. This makes it possible to generate a certain amount of aerosol even when the amount of aerosol-generating substance flowing into the liquid transfer means temporarily decreases.

[0199] On the other hand, while the aerosol-generating substance is not exhausted and the first power is supplied to the heater, the heater temperature may fall below the minimum temperature set for the heating section. Here, the minimum temperature may be the minimum temperature corresponding to the case where the first power is supplied to the heater for a predetermined time or longer in the heating section. For example, if the amount of aerosol-generating substance flowing into the liquid transfer means temporarily increases while the aerosol-generating substance is not exhausted, the heater temperature may fall below the predetermined minimum temperature even if the first power is supplied to the heater for a predetermined time or longer in the heating section.

[0200] The aerosol generator 10 may decide to change the initial resistance value of the heater if the heater temperature is below the minimum temperature set for the heating section. When the aerosol generator 10 decides to change the initial resistance value of the heater, it can do so by the temperature difference between the heater temperature and the reference temperature set for the heating section. For example, the aerosol generator 10 can reduce the initial resistance value of the heater by the temperature difference between the heater temperature at the point when the first power has been supplied to the heating section for a predetermined time or longer and the reference temperature set for the heating section. In this way, when the initial resistance value of the heater is reduced, the actual temperature of the heater may be lower than the target temperature while the aerosol generator 10 raises the heater temperature to the target temperature. This allows for the generation of a constant amount of aerosol even when the amount of aerosol-generating material flowing into the liquid transfer means temporarily increases.

[0201] On the other hand, referring to Figure 19, if the initial resistance value of the heater is set lower than the actual resistance value at the reference temperature, the heater temperature 1310 calculated while the first power is supplied to the heater in the heating section after time t0 may be equal to or greater than the highest temperature Thigh in the heating section. On the other hand, if the initial resistance value of the heater is set higher than the actual resistance value at the reference temperature, the heater temperature 1320 calculated while the first power is supplied to the heater in the subsequent heating section may be less than the lowest temperature Tlow in the heating section.

[0202] The aerosol generator 10 may decide to change the initial resistance value of the heater if the heater temperature is not within the temperature range set for the heating section. In this case, if the aerosol generator 10 decides to change the initial resistance value of the heater, it may change the initial resistance value of the heater based on the temperature difference between the heater temperatures 1910 and 1920 and the reference temperature 1900 set for the heating section.

[0203] As described above, according to at least one embodiment of the present disclosure, the initial resistance value of the heater can be updated based on the heater temperature during the preheating and / or heating phases.

[0204] According to at least one embodiment of the present disclosure, a certain amount of aerosol can be generated in the heating section by updating the initial resistance value of the heater.

[0205] According to at least one of the embodiments of this disclosure, it is possible to accurately determine whether the aerosol-generating material has been completely consumed in the preheating and / or heating phases.

[0206] Referring to Figures 1 to 19, an aerosol generating device 10 according to one aspect of the present disclosure may include a housing having long insertion spaces 130 and 230 formed therein, a heater 210 for heating an aerosol generating material, a resistance detection sensor 150 that outputs a signal corresponding to the resistance value of the heater 210, and a control unit 17 that determines the resistance value of the heater 210 based on the signal from the resistance detection sensor 150. When a stick is inserted into the insertion spaces 130 and 230, the control unit 17 determines the initial resistance value of the heater 210, controls the supply of power to the heater 210 based on a predetermined temperature profile, determines 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, and if it is decided to change the initial resistance value, the initial resistance value can be changed by the difference between the calculated temperature of the heater 210 and a predetermined reference temperature.

[0207] Furthermore, according to another aspect of the present disclosure, when the stick is inserted, the control unit 17 can control the supply of power to the heater 210 based on a predetermined temperature profile in order to preheat the heater 210, and can decide whether to change the initial resistance value based on the temperature of the heater 210 calculated based on the initial resistance value and a first temperature range set in accordance with the preheating of the heater 210.

[0208] Furthermore, according to other aspects of the present disclosure, the aerosol generator may further include a puff sensor 155 for sensing puffs. When a puff is detected, the control unit 17 can control the heater 210 to supply power to it based on a predetermined temperature profile in order to heat the heater 210, and can decide whether to change the initial resistance value based on the temperature of the heater 210 calculated based on the initial resistance value and a second temperature range set in response to heating the heater 210.

[0209] Furthermore, according to other aspects of this disclosure, the amount of change in the initial resistance may be proportional to the difference between the calculated temperature of the heater 210 and the reference temperature.

[0210] Furthermore, according to other aspects of this disclosure, if the calculated temperature of the heater 210 is above a predetermined first temperature, it is possible to determine whether the aerosol-generating substance has been exhausted. If it is determined that the aerosol-generating substance has been exhausted, the power supply to the heater 210 may be cut off. If it is determined that the aerosol-generating substance has not been exhausted, it may be decided to change the initial resistance value.

[0211] Furthermore, according to another aspect of this disclosure, the control unit 17 can determine that the aerosol-generating substance has been exhausted if, while the heater 210 is supplied with a first power based on a predetermined temperature profile, the heater 210 is at or above the first temperature, and while the heater 210 is supplied with the second power, the heater 210 is at or above a predetermined second temperature. The second temperature may be at or above the first temperature.

[0212] Furthermore, according to another aspect of this disclosure, the control unit 17 may increase the initial resistance value in proportion to the difference between the calculated heater temperature 210 and the reference temperature. The first temperature may exceed the reference temperature.

[0213] Furthermore, according to another aspect of this disclosure, the control unit 17 may decide to change the initial resistance value if the calculated temperature of the heater 210 is below a predetermined third temperature, and may decrease the initial resistance value in proportion to the difference between the calculated temperature of the heater 210 and the reference temperature. The third temperature may be below the reference temperature.

[0214] On the other hand, an operating method of the aerosol generator 10 according to one aspect of this disclosure may include: when a stick is inserted into insertion spaces 130, 230 formed in the housing, an operation to determine the initial resistance value of the heater 210 using a resistance detection sensor 150 that outputs a signal corresponding to the resistance value of the heater 210; an operation to supply power to the heater 210 based on a predetermined temperature profile; an operation to decide whether to change the initial resistance value based on the temperature of the heater 210 calculated based on the determined initial resistance value and a predetermined temperature range; and, if it is decided to change the initial resistance value, an operation to change the initial resistance value by the difference between the calculated temperature of the heater 210 and a predetermined temperature.

[0215] Furthermore, according to other aspects of this disclosure, the operation of supplying power to the heater 210 may include, when the stick is inserted, the operation of supplying power to the heater 210 based on the predetermined temperature profile in order to preheat the heater 210. The operation of determining whether to change the initial resistance value may include the operation of 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 first temperature range set in accordance with the preheating of the heater 210.

[0216] Furthermore, according to other aspects of this disclosure, the operation of supplying power to the heater 210 may include the operation of supplying power to the heater 210 based on the predetermined temperature profile in order to heat the heater 210 when a puff is detected by the puff sensor 155. The operation of determining whether to change the initial resistance value may include the operation of 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 second temperature range set in response to the heating of the heater 210.

[0217] Furthermore, according to other aspects of this disclosure, the operation of determining whether to change the initial resistance value may include: determining whether the aerosol-generating material has been exhausted if the calculated temperature of the heater 210 is above a predetermined first temperature; cutting off the power supply to the heater 210 if it is determined that the aerosol-generating material has been exhausted; and deciding to change the initial resistance value if it is determined that the aerosol-generating material has not been exhausted.

[0218] Furthermore, according to other aspects of this disclosure, the operation for determining whether the aerosol-generating substance has been exhausted may include, when the heater 210 is supplied with a first power based on a predetermined temperature profile and the temperature of the heater 210 is equal to or greater than the first temperature, changing the power supplied to the heater 210 to a second power lower than the first power; and when the heater 210 is supplied with the second power and the temperature of the heater 210 is equal to or greater than a predetermined second temperature, determining that the aerosol-generating substance has been exhausted. The second temperature may be equal to or greater than the first temperature.

[0219] Furthermore, according to other aspects of this disclosure, the operation to change the initial resistance value may include an operation to increase the initial resistance value in proportion to the difference between the calculated heater temperature 210 and the reference temperature. The first temperature may exceed the reference temperature.

[0220] Furthermore, according to other aspects of this disclosure, the operation of determining whether to change the initial resistance value may include the operation of deciding to change the initial resistance value if the calculated temperature of the heater 210 is below a predetermined third temperature. The operation of changing the initial resistance value may include the operation of decreasing the initial resistance value in proportion to the difference between the calculated temperature of the heater 210 and the reference temperature. The third temperature may be below the reference temperature.

[0221] The specific or other embodiments of the above-mentioned embodiments of the present disclosure are not mutually exclusive or distinguishable. The specific or all elements of the above-mentioned embodiments of the present disclosure can be combined with or combined with other elements in terms of configuration or function.

[0222] For example, configuration A described in one embodiment of this disclosure and drawings and configuration B described in another embodiment of this disclosure and drawings can be combined with each other. That is, even if combinations between configurations are not directly described, such combinations are possible unless otherwise stated as impossible.

[0223] While the embodiments have been described above with reference to numerous exemplary examples, those skilled in the art in the field relating to the principles of this disclosure should understand that many other modifications and embodiments are possible. More specifically, a variety of modifications and variations are possible in the components and / or arrangements of the subject combinations within the scope of this disclosure, drawings, and appended claims. In addition to the modifications and variations of the components and / or arrangements, other applications will also become apparent to those skilled in the art.

Claims

1. A housing with a long insertion space formed, A heater that heats the aerosol-generating material using supplied electricity, A resistance detection sensor that outputs a signal corresponding to the resistance value of the heater, Includes a control unit, The control unit, When a stick is inserted into the insertion space, the initial resistance value of the heater is determined based on the signal output from the resistance detection sensor. Based on a predetermined temperature profile, the power supplied to the heater is controlled. If, after power is supplied to the heater based on the predetermined temperature profile, the temperature of the heater calculated based on the signal output from the resistance detection sensor and the initial resistance value does not fall within the predetermined temperature range, it is decided to change the initial resistance value. An aerosol generating apparatus characterized by changing the initial resistance value based on the difference between the calculated heater temperature and a predetermined reference temperature.

2. The control unit further, When the stick is inserted, the power supplied to the heater is controlled based on the predetermined temperature profile in order to preheat the heater. The aerosol generating apparatus according to claim 1, characterized in that if the calculated heater temperature does not fall within a first temperature range corresponding to the preheating of the heater, it is decided to change the initial resistance value.

3. It further includes a puff sensor that detects the puff, The control unit further, When the puff is detected, the power supplied to the heater is controlled based on the predetermined temperature profile. The aerosol generating apparatus according to claim 1, characterized in that if the calculated heater temperature does not fall within the second temperature range corresponding to heating the heater, it is decided to change the initial resistance value.

4. The aerosol generating apparatus according to claim 1, characterized in that the amount of change in the initial resistance value is proportional to the difference between the calculated heater temperature and the reference temperature.

5. The control unit further, If the calculated heater temperature is above a predetermined first temperature, it is determined whether the aerosol-generating substance has been completely consumed. When the aerosol-generating material is completely depleted, the power supplied to the heater is cut off. The aerosol generating apparatus according to claim 1, characterized in that if the aerosol generating substance is not exhausted, it is decided to change the initial resistance value.

6. The control unit further, When the heater is supplied with first power based on the predetermined temperature profile, if the heater temperature is equal to or higher than the first temperature, the power supplied to the heater is changed to a second power lower than the first power. When the second power is supplied to the heater and the heater temperature is above a predetermined second temperature, it is determined that the aerosol-generating substance has been completely consumed. The aerosol generating apparatus according to claim 5, characterized in that the second temperature is equal to or greater than the first temperature.

7. The control unit further increases the initial resistance value in proportion to the difference between the calculated heater temperature and the reference temperature. The aerosol generating apparatus according to claim 5, characterized in that the first temperature exceeds the reference temperature.

8. The control unit further, If the calculated heater temperature is below a predetermined third temperature, it is decided to change the initial resistance value. The initial resistance value is reduced in proportion to the difference between the calculated heater temperature and the reference temperature. The aerosol generating apparatus according to claim 1, characterized in that the third temperature is less than the reference temperature.

9. A method for operating an aerosol generating apparatus having a heater, When a stick is inserted into the insertion space formed in the housing, the operation determines the initial resistance value of the heater based on the signal output from the resistance detection sensor, An operation to control the power supplied to the heater based on a predetermined temperature profile, Based on the predetermined temperature profile, if, after power is supplied to the heater, the temperature of the heater calculated based on the signal output from the resistance detection sensor and the initial resistance value does not fall within the predetermined temperature range, the operation of deciding to change the initial resistance value, A method for operating an aerosol generator, comprising the operation of changing the initial resistance value based on the difference between the calculated heater temperature and a predetermined reference temperature.

10. The power supply operation includes, when the stick is inserted, an operation to control the power supplied to the heater based on a predetermined temperature profile in order to preheat the heater, The operation method of an aerosol generating apparatus according to claim 9, characterized in that the operation of deciding to change the initial resistance value includes the operation of deciding to change the initial resistance value if the calculated heater temperature is not included in the first temperature range corresponding to the preheating of the heater.

11. The operation to control the power includes, when a puff is detected by the puff sensor, the operation to control the power supplied to the heater based on the predetermined temperature profile, The operation method of an aerosol generating apparatus according to claim 9, characterized in that the operation of deciding to change the initial resistance value includes the operation of deciding to change the initial resistance value if the calculated heater temperature is not included in the second temperature range corresponding to heating the heater.

12. The action of deciding to change the initial resistance value is, If the calculated heater temperature is above a predetermined first temperature, the system performs an operation to determine whether the aerosol-generating substance has been completely consumed. When the aerosol-generating material is completely depleted, the power supplied to the heater is shut off. The method for operating an aerosol generating apparatus according to claim 9, characterized by including the action of deciding to change the initial resistance value if the aerosol generating substance is not exhausted.

13. The operation to determine whether the aerosol-generating substance has been completely consumed is: With the first power supplied to the heater based on the predetermined temperature profile, If the temperature of the heater is equal to or higher than the first temperature, the power supplied to the heater is changed to a second power that is lower than the first power. The operation includes determining that the aerosol-generating substance has been exhausted when the heater temperature is above a predetermined second temperature while the second power is supplied to the heater, The method for operating the aerosol generating apparatus according to claim 12, characterized in that the second temperature is equal to or greater than the first temperature.

14. The operation to change the initial resistance value includes an operation to increase the initial resistance value in proportion to the difference between the calculated heater temperature and the reference temperature. The method for operating an aerosol generating apparatus according to claim 12, characterized in that the first temperature exceeds the reference temperature.

15. The action of deciding to change the initial resistance value is, If the calculated heater temperature is below a predetermined third temperature, the operation is to decide to change the initial resistance value. The operation includes reducing the initial resistance value in proportion to the difference between the calculated heater temperature and the reference temperature, The method for operating the aerosol generating apparatus according to claim 9, characterized in that the third temperature is less than the reference temperature.

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