Aerosol-generating device and control method therefor

Abstract

An aerosol-generating device is disclosed. An aerosol-generating device according to an embodiment of the present invention may comprise: a housing having an insertion space into which an aerosol-generating article is inserted; a heater configured to heat the aerosol-generating article inserted into the insertion space; a first fan module disposed in an area adjacent to the insertion space; and a control unit configured to control driving of the first fan module on the basis of the state of the aerosol-generating device.

Description

Aerosol generating device and control method thereof

[0001] Various embodiments of the present invention relate to an aerosol generating device and a fan module provided inside the aerosol generating device.

[0002] An aerosol generating device has a structure that generates an aerosol by heating a substance in liquid or solid form and allows a user to inhale it. In order to inhale the heated aerosol into the user's mouth, a channel through which air and aerosol can flow may be provided inside the aerosol generating device.

[0003] In the narrow internal space of the aerosol generating device, the aerosol generating material can be heated, and airflow from the user's breathing can be utilized to form an airflow. The user can inhale one end of the aerosol generating item to direct air and aerosol into the mouth. On the outside of the housing of the aerosol generating device, air can flow into the inside of the housing in response to the user's inhalation.

[0004] However, when an airflow is generated with an aerosol generating material inserted, resistance to inhalation may occur for the user. There is also a concern that the aerosol heated inside the housing may cause discomfort due to high temperatures during smoking. Therefore, there is a need for a means to easily generate an airflow inside the aerosol generating device while simultaneously managing heat and removing foreign substances from within the device.

[0005] The present invention has been devised to provide an aerosol generating device configured to provide various functions by having a fan module configured to form an airflow inside the aerosol generating device.

[0006] The problems that the present invention aims to solve are not limited to those mentioned above, and other unmentioned problems will be clearly understood by a person skilled in the art from the description below.

[0007] An aerosol generating device according to one embodiment of the present invention may include a housing having an insertion space into which an aerosol generating article is inserted, a heater configured to heat the aerosol generating article inserted into the insertion space, a first fan module disposed in an area adjacent to the insertion space, and a control unit configured to control the first fan module in a plurality of modes based on the state of the aerosol generating device.

[0008] The first fan module above can generate airflow in different directions according to the plurality of modes.

[0009] The first fan module may include a blade portion comprising one or more blades, a motor configured to drive the blade portion, and a fan heater configured to heat the airflow generated through the blade portion.

[0010] The blade portion may be configured to rotate in a first direction or in a second direction opposite to the first direction.

[0011] The first fan module can be placed in an airflow channel inside the housing.

[0012] The first fan module can be placed at the bottom of the insertion space on the airflow channel.

[0013] An aerosol generating device according to one embodiment of the present invention further includes a second fan module disposed at a different location from the first fan module inside the housing, and the second fan module may be configured to include at least a portion of the configuration of the first fan module.

[0014] An aerosol generating device according to one embodiment of the present invention comprises a heater body that extends upward from the insertion space and is inserted into the aerosol generating article, and the heater body may be configured to include at least one opening region.

[0015] The above at least one opening region may include an opening region formed at the top facing the aerosol generating article from the heater body.

[0016] The above at least one opening area may be configured to communicate with the airflow channel.

[0017] The control unit of the aerosol generating device according to one embodiment of the present invention may be configured to drive the blade unit and the fan heater independently.

[0018] The control unit is configured to control the first fan module in a first mode when the preheating of the aerosol generating device begins, and the first mode may be set to rotate the blade unit in a first direction and apply power to the fan heater.

[0019] The control unit is configured to control the first fan module in a second mode after the preheating of the aerosol generating device is finished or while the puffing of the aerosol generating device is in progress, and the second mode may be set to rotate the blade unit in a first direction and cut off power to the fan heater.

[0020] The control unit may control the first fan module in a third mode when it detects that the aerosol generating article is separated from the insertion space after the puffing of the aerosol generating device ends, and the third mode may be configured to cut off power to the fan heater, and at least include a second direction control section for rotating the blade portion in a second direction.

[0021] The above third mode further includes a first direction control section for rotating the blade portion in a first direction, and the first direction control section and the second direction control section may be set to operate alternately.

[0022] A control method for an aerosol generating device according to one embodiment of the present invention comprises a housing having an insertion space into which an aerosol generating article is inserted, a heater configured to heat the aerosol generating article inserted into the insertion space, a fan module, and a control unit, wherein the fan module is disposed in an area adjacent to the insertion space, and the control method may include the step of checking the state of the aerosol generating device and the step of controlling the operation of the fan module based on the state of the aerosol generating device.

[0023] According to an embodiment of the present invention, at least one fan module is provided inside an aerosol generating device, and the fan module is controlled according to the state of the aerosol generating device. A control unit configured to control the fan module can perform various functions by controlling the blade portion of the fan module and the fan heater, respectively.

[0024] The control unit can assist in preheating the aerosol generating device through the control of the fan module, reduce resistance to the user's puff, and perform cooling and drying functions of the aerosol generating device.

[0025] The effects of the present invention are not limited to those mentioned above, and other unmentioned effects will be clearly understood by a person skilled in the art from the description below.

[0026] A more complete understanding of the present invention and the various aspects accompanying it will be more clearly understood when the following detailed description is taken in conjunction with the accompanying drawings.

[0027] FIG. 1 is a block diagram of an aerosol generating device according to one embodiment.

[0028] FIG. 2 illustrates an aerosol generating device according to one embodiment.

[0029] FIG. 3 illustrates an aerosol generating device according to one embodiment.

[0030] FIG. 4 illustrates an aerosol generating device according to one embodiment.

[0031] FIG. 5 illustrates a fan module of an aerosol generating device according to one embodiment.

[0032] FIGS. 6, FIGS. 7 and FIGS. 8 illustrate the internal structure of an aerosol generating device according to one embodiment.

[0033] FIG. 9 illustrates the internal structure of an aerosol generating device equipped with a plurality of fan modules.

[0034] FIGS. 10 and FIGS. 11 illustrate various embodiments of a heater provided in an aerosol generating device.

[0035] FIG. 12 is a flowchart illustrating a control method for an aerosol generating device according to one embodiment.

[0036] FIGS. 13, 14, and 15 are flowcharts illustrating a method in which a control unit controls a fan module in a first mode or a second mode, and drawings illustrating air flow inside an aerosol generating device.

[0037] FIGS. 16, 17, and 18 are flowcharts illustrating how a control unit controls a fan module in a third mode and drawings illustrating air flow inside an aerosol generating device.

[0038] FIG. 19 is a schematic diagram illustrating the state of an aerosol generating device in chronological order.

[0039] Hereinafter, embodiments disclosed in this specification will be described in detail with reference to the attached drawings. Identical or similar components are assigned the same reference numeral regardless of the drawing symbols, and redundant descriptions thereof will be omitted. In relation to the description of the drawings, similar drawing symbols may be used for similar or related components.

[0040] The suffixes "module" and "unit" for components used in the following description are assigned or used interchangeably solely for the sake of ease of drafting the specification, and do not inherently possess distinct meanings or roles. Meanwhile, the suffixes "module" or "unit" may include units implemented in hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit. "Module" or "unit" may be a component formed as a whole, or the smallest unit of said component or a part thereof that performs one or more functions. For example, "module" or "unit" may be implemented in the form of an application-specific integrated circuit (ASIC).

[0041] In addition, when describing the embodiments disclosed in this specification, if it is determined that a detailed description of related prior art may obscure the essence of the embodiments disclosed in this specification, such detailed description is omitted. Furthermore, the attached drawings are intended only to facilitate understanding of the embodiments disclosed in this specification, and the technical concept disclosed in this specification is not limited by the attached drawings; it should be understood that the drawings include all modifications, equivalents, and substitutions that fall within the concept and technical scope of this disclosure.

[0042] Terms including ordinal numbers, such as first, second, etc., may be used to describe various components, but said components are not limited by said terms. These terms are used solely for the purpose of distinguishing one component from another.

[0043] When it is stated that one component is "connected" or "connected" to another component, it should be understood that while it may be directly connected or connected to that other component, there may also be other components in between. On the other hand, when it is stated that one component is "directly connected" or "directly connected" to another component, it should be understood that there are no other components in between.

[0044] A singular expression includes a plural expression unless the context clearly indicates otherwise.

[0045] Embodiments of the present disclosure may be implemented as software comprising one or more instructions stored in a storage medium (e.g., memory (17)) readable by a machine (e.g., aerosol generating device (1)). For example, a processor (e.g., control unit (12)) of the machine (e.g., aerosol generating device (1)) may call at least one of the one or more instructions stored in the storage medium and execute it. This enables the machine to operate to perform at least one function according to the at least one called instruction. The one or more instructions may include code generated by a compiler or code that can be executed by an interpreter. The storage medium readable by the machine may be provided in the form of a non-transitory storage medium. Here, 'non-temporary' simply means that the storage medium is a tangible device and does not contain a signal (e.g., electromagnetic waves), and the term does not distinguish between cases where data is stored semi-permanently and cases where it is stored temporarily.

[0046] In the present disclosure, the direction of the aerosol generating device (1) can be defined based on an orthogonal coordinate system. In the orthogonal coordinate system, the x-axis direction can be defined as the left-right direction of the aerosol generating device (1). The y-axis direction can be defined as the front-back direction of the aerosol generating device (1). The z-axis direction can be defined as the up-down direction of the aerosol generating device (1).

[0047] FIG. 1 is a block diagram of an aerosol generating device (1) according to one embodiment.

[0048] According to one embodiment, the aerosol generating device (1) may include a power supply (11), a control unit (12), a sensor unit (13), an output unit (14), an input unit (15), a communication unit (16), a memory (17), and / or a heater (18, 24). However, it will be understood by those skilled in the art related to this embodiment that, depending on the design of the aerosol generating device (1), some of the components shown in FIG. 1 may be omitted or new components may be added.

[0049] According to one embodiment, the sensor unit (13) can detect the state of the aerosol generating device (1) or the state around the aerosol generating device (1) and transmit the detected information to the control unit (12). For example, the sensor unit (13) may include a temperature sensor, a puff sensor, an insertion detection sensor, a reuse detection sensor, an overly moist detection sensor, a cigarette identification sensor, a cartridge detection sensor, a cap detection sensor, and / or a motion detection sensor. Meanwhile, the sensor unit (13) may further include various sensors, such as a liquid residue sensor for detecting the liquid residue in the cartridge and a water immersion sensor for detecting the water immersion of the aerosol generating device (1).

[0050] According to one embodiment, a temperature sensor can detect the temperature at which the heater (18, 24) is heated. The aerosol generating device (1) may include a separate temperature sensor that detects the temperature of the heater (18, 24), or the heater (18, 24) itself may perform the role of a temperature sensor. For example, the temperature sensor may be used to measure the impedance of the heater (18). The impedance of the heater (18) may be correlated with the temperature of the heater (18). The temperature sensor may measure the current and / or voltage applied to the heater (18) (or induction coil). Based on the measured current and / or voltage, the impedance of the heater (18) may be calculated. The control unit (12) may estimate the temperature of the heater (18) based on the calculated impedance.

[0051] For example, the temperature sensor may include a resistive element (e.g., a thermistor) whose resistance value changes in response to a temperature change of the heater (18, 24). The temperature sensor may output a signal corresponding to the resistance value of the resistive element, and the control unit (12) may detect the temperature and / or temperature change of the heater (18, 24) based on the signal corresponding to the resistance value.

[0052] As another example, the temperature sensor may include a sensor that detects the resistance value of the heater (18, 24). The temperature sensor may output a signal corresponding to the resistance value of the heater (18, 24), and the control unit (12) may detect the temperature and / or temperature change of the heater (18, 24) based on the signal corresponding to the resistance value.

[0053] According to one embodiment, a temperature sensor can detect the temperature of a power source (11). The temperature sensor may be positioned adjacent to the power source (11). For example, the temperature sensor may be attached to one side of the power source (11) (e.g., a battery) and / or mounted on one side of a printed circuit board. For example, the aerosol generating device (1) may include a protection circuit module (PCM), and the temperature sensor may be positioned adjacent to the power source (11) together with the protection circuit module.

[0054] According to one embodiment, the temperature sensor may be placed inside the housing (not shown) of the aerosol generating device (1) to detect the temperature inside the housing (not shown).

[0055] According to one embodiment, the puff sensor can detect the user's puff.

[0056] For example, the puff sensor may include a pressure sensor. The pressure sensor may output a signal corresponding to the internal pressure of the aerosol generating device (1), and the control unit (12) may detect the user's puff based on the signal corresponding to the internal pressure. Here, the internal pressure of the aerosol generating device (1) may correspond to the pressure of the airflow path through which the gas flows. The puff sensor may be positioned in the aerosol generating device (1) in correspondence with the airflow path through which the gas flows.

[0057] As another example, the puff sensor may include a temperature sensor. When a user's puff occurs, a temporary temperature drop may occur in the airflow path, the space where the aerosol generating article is inserted (hereinafter, the insertion space), the heater (18, 24), etc. The control unit (12) can detect the user's puff based on a signal corresponding to the temperature of the airflow path, etc. output from the temperature sensor.

[0058] As another example, the puff sensor may include both a pressure sensor and a temperature sensor. In this case, the temperature sensor may measure the temperature used to correct the internal pressure measured by the pressure sensor. As an example, the puff sensor may correct a signal corresponding to the internal pressure based on the temperature measured by the temperature sensor and output the corrected signal. As another example, the puff sensor may output a signal corresponding to the temperature measured by the temperature sensor and a signal corresponding to the internal pressure measured by the puff sensor. In this case, the control unit (12) may receive the signals and correct the signal corresponding to the internal pressure based on the signal corresponding to the temperature.

[0059] As another example, the puff sensor may include a capacitance sensor. In the present disclosure, the capacitance sensor may be referred to as a cap sensor or a capacitive sensor. When a user's puff occurs, a temperature change and / or a flow of aerosol may occur within the insertion space of the aerosol generating article, and accordingly, the dielectric constant inside the insertion space may change. The control unit (12) can detect the user's puff based on a signal corresponding to the dielectric constant inside the insertion space, etc., output from the capacitance sensor.

[0060] The puff sensor is not limited to the examples described above and can be implemented as various sensors to detect the user's puff.

[0061] According to one embodiment, the insertion detection sensor can detect the insertion and / or removal of an aerosol-generating article. The insertion detection sensor may be installed around the insertion space. Additionally, the insertion detection sensor may include any combination of the examples described above.

[0062] For example, the insertion detection sensor may include a capacitance sensor. The capacitance sensor may include at least one conductor, and the at least one conductor may be disposed adjacent to the insertion space. When an aerosol-generating article is inserted into or removed from the insertion space, the dielectric constant around the conductor may change. The control unit (12) may detect the insertion and / or removal of the aerosol-generating article based on a signal corresponding to the dielectric constant inside the insertion space, etc., output from the capacitance sensor.

[0063] As another example, the insertion detection sensor may include an inductive sensor. The inductive sensor may include at least one coil, and said at least one coil may be positioned adjacent to the insertion space. If the aerosol generating article (e.g., a wrapper of the aerosol generating article) includes a conductor, when the aerosol generating article is inserted into the insertion space or removed from the insertion space, a change in the magnetic field may occur around the coil through which the current flows. The control unit (12) may detect the insertion and / or removal of the aerosol generating article including the conductor based on the characteristics of the current output from or detected by the inductive sensor (e.g., frequency of alternating current, current value, voltage value, inductance value, impedance value, etc.). Alternatively, a susceptor (SUS), etc., may be included in the aerosol generating article (e.g., the medium part of the aerosol generating article). In this case as well, a change in the magnetic field around the coil may occur based on the insertion or removal of a susceptor, etc., within the insertion space, and the control unit (12) may detect the insertion and / or removal of an aerosol generating article based on the characteristics of the current of the inductive sensor.

[0064] The insertion detection sensor is not limited to the examples described above and may be implemented as various sensors (e.g., proximity sensors, etc.) for detecting the insertion and / or removal of an aerosol-generating article. Additionally, the insertion detection sensor may include any combination of the examples described above. According to one embodiment, the insertion detection sensor may include a switch, etc., for detecting pressure caused by an aerosol-generating article.

[0065] According to one embodiment, a reuse detection sensor can detect whether an aerosol-generating article is reused. For example, the reuse detection sensor may be a color sensor for detecting the color of the aerosol-generating article. When the aerosol-generating article is used by a user, a change in color may occur in a part of the wrapper covering the outside of the aerosol-generating article due to the generated aerosol or heating. The color sensor may output a signal corresponding to an optical characteristic (e.g., wavelength of light) corresponding to the color of the wrapper based on light reflected from the wrapper. When the control unit (12) detects a change in color in a part of the wrapper, it may determine that the aerosol-generating article inserted into the insertion space has already been used.

[0066] According to one embodiment, the over-humidity detection sensor can detect whether the aerosol generating article is in an over-humid state. For example, the over-humidity detection sensor may include a capacitance sensor. The capacitance sensor may include at least one conductor disposed adjacent to an insertion space. The control unit (12) can detect whether the aerosol generating article is in an over-humid state based on the level of a signal corresponding to the dielectric constant, etc., output from the capacitance sensor. For example, the control unit (12) can determine the level range in which the level of the signal is included based on a look-up table, and determine the amount of moisture for the aerosol generating article based on the confirmed level range.

[0067] According to one embodiment, the cigarette identification sensor can detect whether an aerosol-generating article is genuine or / or detect the type of aerosol-generating article.

[0068] For example, a cigarette identification sensor may include a light sensor for detecting an identification material (or identification mark) located on the outer surface (e.g., wrapper) of an aerosol-generating article. The light sensor may irradiate light toward the identification material (or identification mark) of the aerosol-generating article and detect whether the aerosol-generating article is genuine and / or of a specific type based on the reflected light. For example, the identification material may include a material that emits light of a specific wavelength band based on the irradiated light. The control unit (12) may detect whether the aerosol-generating article is genuine and / or of a specific type based on the range of the wavelengths.

[0069] As another example, the cigarette identification sensor may include a capacitance sensor. The dielectric constant inside the insertion space may vary depending on the type of aerosol-generating item inserted into the insertion space. The control unit (12) can detect whether the aerosol-generating item is genuine and / or of the type based on a signal corresponding to the dielectric constant inside the insertion space, etc., output from the capacitance sensor.

[0070] As another example, the cigarette identification sensor may include an inductive sensor. If a conductor is included in the wrapper and / or interior (e.g., the medium) of the aerosol generating article inserted into the insertion space, the characteristics of the current detected by the inductive sensor when the aerosol generating article is inserted into the insertion space (e.g., frequency of alternating current, current value, voltage value, inductance value, impedance value, etc.) may differ depending on the type of aerosol generating article inserted into the insertion space. The control unit (12) can detect whether the inserted aerosol generating article is genuine and / or of the type based on the characteristics of the current output from or detected by the inductive sensor.

[0071] The cigarette identification sensor is not limited to the examples described above and may be implemented as various sensors for detecting whether an aerosol-generating article is genuine or / or for detecting the type of an aerosol-generating article. Additionally, the cigarette identification sensor may include any combination of the examples described above.

[0072] According to one embodiment, the cartridge detection sensor can detect the mounting and / or removal of a cartridge. For example, the cartridge detection sensor may include an inductive sensor, a capacitive sensor, a resistive sensor, a Hall sensor (hall IC), and / or an optical sensor.

[0073] According to one embodiment, a cap detection sensor can detect the mounting and / or removal of a cap. For example, the cap detection sensor may include an inductive sensor, a capacitive sensor, a resistive sensor, a contact sensor, a Hall sensor (hall IC), and / or an optical sensor. The cap may include a structure that covers at least a portion of a cartridge mounted or inserted into the aerosol generating device (1), or covers at least a portion of the housing of the aerosol generating device (1). The cap detection sensor may output a signal corresponding to the mounting or removal when the cap is mounted on the housing or removed from the housing, and the control unit (12) may detect the mounting or removal of the cap based on the signal corresponding to the mounting or removal.

[0074] According to one embodiment, the motion detection sensor can detect the movement of the aerosol generating device (1). The motion detection sensor may be implemented as at least one of an accelerometer or a gyro sensor.

[0075] According to one embodiment, the sensor unit (13) may further include at least one of a humidity sensor, an atmospheric pressure sensor, a geomagnetic sensor, a position sensor (Global Positioning System, GPS), or a proximity sensor in addition to the aforementioned sensors. Since the function of each sensor can be intuitively inferred by a person skilled in the art from its name, a detailed description may be omitted.

[0076] According to one embodiment, the output unit (14) may output information regarding the state of the aerosol generating device (1). The output unit (14) may include a display, a haptic unit and / or an acoustic output unit, but is not limited thereto. For example, information regarding the aerosol generating device (1) may include the charging / discharging state of the power supply (11) of the aerosol generating device (1), the preheating state of the heater (18, 24), the insertion / removal state of the aerosol generating article and / or cartridge, the mounting and / or removal state of the cap, or a state in which the use of the aerosol generating device (1) is restricted (e.g., detection of an abnormal article). The display may visually provide information regarding the state of the aerosol generating device (1) to the user. For example, the display may include an LED (light emitting diode) light-emitting element, a Liquid Crystal Display (LCD), an Organic Light Emitting Diodes (OLED), etc. The display can also be used as an input unit (15) if it includes a touch pad. The haptic unit can provide information about the state of the aerosol generating device (1) to the user tactilely. For example, the haptic unit may include a vibration motor, a piezoelectric element, an electric stimulation device, etc. The acoustic output unit can provide information about the aerosol generating device (1) to the user audibly. For example, the acoustic output unit can convert an electrical signal into an acoustic signal and output it externally.

[0077] According to one embodiment, the power source (11) can supply power for the operation of the aerosol generating device (1). The power source (11) may include one or more batteries. The power source (11) can supply power so that the heater (18, 24) can be heated. Additionally, the power source (11) may supply power required for the operation of other components included in the aerosol generating device (1), such as the control unit (12), sensor unit (13), output unit (14), input unit (15), communication unit (16), memory (17), etc. The power source (11) may be a rechargeable battery or a disposable battery. For example, the power source (11) may be a lithium polymer (LiPoly) battery, but is not limited thereto. The power source (11) may be a replaceable type (detachable) battery (hereinafter referred to as a removable battery). The removable battery may be mounted in a battery housing provided within the aerosol generating device (1) or removed from the battery housing. The removable battery may also be charged via wired and / or wireless connections.

[0078] According to one embodiment, the heater (18, 24) can heat the aerosol generating article and / or the medium and / or aerosol generating material within the cartridge by receiving power from the power source (11). The aerosol generating device (1) may include a heater (18) for heating the aerosol generating article and / or a cartridge heater (24) for heating the cartridge (i.e., solid and / or liquid medium).

[0079] According to one embodiment, the heater (18, 24) may be an electric resistive heater. For example, the electric resistive heater may include an electric resistive material such as a metal or metal alloy including titanium, zirconium, tantalum, platinum, nickel, cobalt, chromium, hafnium, niobium, molybdenum, tungsten, tin, gallium, manganese, iron, copper, stainless steel, nichrome, etc. The electric resistive heater may be implemented as a metal heating wire, a metal heating plate with an electric conductive track, a ceramic heating element, etc.

[0080] According to one embodiment, the heater (18, 24) may be an induction heating type heater. For example, the induction heating type heater may include a susceptor that generates heat by a magnetic field. A magnetic field may be generated from the induction coil by an alternating current flowing through the induction coil. The generated magnetic field penetrates the heater, and eddy currents may be generated in the susceptor. The susceptor may be heated based on the generation of eddy currents. According to one embodiment, the susceptor may be contained within an aerosol-generating article (e.g., a medium). In this case as well, the susceptor contained within the aerosol-generating article may be heated by the induction coil.

[0081] The heater (18, 24) is not limited to the examples described above and may include or be replaced with various heating methods, structures, components, etc. for heating an aerosol generating article and / or cartridge.

[0082] According to one embodiment, the input unit (15) can receive information input from a user. For example, the input unit (15) may include a touch panel, a button, a keypad, a dome switch, a jog wheel, a jog switch, etc.

[0083] According to one embodiment, the memory (17) is hardware that stores various data processed within the aerosol generating device (1), and can store data processed by the control unit (12) and data to be processed. For example, the memory (17) may include at least one type of storage medium among a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (e.g., SD or XD memory, etc.), RAM (random access memory), SRAM (static random access memory), ROM (read-only memory), EEPROM (electrically erasable programmable read-only memory), PROM (programmable read-only memory), magnetic memory, a magnetic disk, and an optical disk. For example, the memory (17) can store data such as the operating time of the aerosol generating device (1), the maximum number of puffs, the current number of puffs, at least one temperature profile, and the user's smoking pattern.

[0084] According to one embodiment, the communication unit (16) may include at least one component for communication with another electronic device (e.g., portable electronic device). For example, the communication unit (16) may include a Bluetooth communication unit, a BLE (Bluetooth Low Energy) communication unit, a Near Field Communication unit, a WLAN (wireless local area network) communication unit, a Zigbee communication unit, an infrared (infrared Data Association, IrDA) communication unit, a WFD (Wireless Fidelity Direct) communication unit, an UWB (ultra wideband) communication unit, an Ant (Adaptive Network Topology)+ communication unit, a cellular network communication unit, an internet communication unit, a computer network (e.g., LAN or WAN) communication unit, etc.

[0085] According to one embodiment, the control unit (12) can control the overall operation of the aerosol generating device (1). For example, the control unit (12) may include at least one processor. The control unit (12) may be implemented as an array of logic gates, or as a combination of a general-purpose MCU (micro controller unit) (or microprocessor) and a memory storing a program that can be executed on such MCU. Furthermore, it will be understood by those skilled in the art to which this embodiment belongs that it may be implemented in other forms of hardware.

[0086] According to one embodiment, the control unit (12) can control the temperature of the heater (18, 24) by controlling the supply of power from the power source (11) to the heater (18, 24). The control unit (12) can control the temperature of the heater (18, 24) and / or the power supplied to the heater (18, 24) based on the temperature of the heater (18, 24) detected using a temperature sensor (e.g., sensor unit (13)). The control unit (12) can control the temperature of the heater (18, 24) and / or the power supplied to the heater (18, 24) based on a temperature profile and / or power profile stored in the memory (17).

[0087] According to one embodiment, the control unit (12) can control the power (e.g., voltage and / or current) supplied to the heater (18, 24) by controlling a power conversion circuit (not shown) electrically connected to the heater (18, 24) and the power source (11). For example, the power conversion circuit may include a DC / DC converter (e.g., buck converter, buck-boost converter, boost converter, Zener diode, etc.) that converts power to be supplied to the heater (18, 24), and a DC / AC converter (e.g., inverter) that converts power to be supplied to an induction coil (not shown). The DC / AC converter may be implemented as a full-bridge circuit or a half-bridge circuit including a plurality of switching elements. For example, the power conversion circuit may include at least one switching element, such as a bipolar junction transistor (BJT) or a field effect transistor (FET).

[0088] According to one embodiment, the control unit (12) can adjust the frequency and / or duty ratio of a current pulse input to at least one switching element of a power conversion circuit (not shown) to adjust the current and / or voltage supplied to the heater (18, 24). The duty ratio for the on / off operation of the switching element may correspond to the ratio of the output voltage of the power conversion circuit to the output voltage of the power supply (11).

[0089] According to one embodiment, the control unit (12) can control the power supplied to the heater (18, 24) by using at least one of a Pulse Width Modulation (PWM) method and a Proportional-Integral-Differential (PID) method. For example, the control unit (12) can control the supply of a current pulse having a predetermined frequency and duty ratio to the heater (18, 24) by using the PWM method. The control unit (12) can control the power supplied to the heater (18, 24) by adjusting the frequency and duty ratio of the current pulse. For example, the control unit (12) can determine a target temperature that is the target of the control based on a temperature profile. The control unit (12) can control the power supplied to the heater (18, 24) by using a PID method, which is a feedback control method using the difference value between the temperature of the heater (18, 24) and the target temperature, the value obtained by integrating the difference value over time, and the value obtained by differentiating the difference value over time.

[0090] According to one embodiment, the control unit (12) can determine a target power that is the target of control based on a power profile. The control unit (12) may also control the power supplied to the heater (18, 24) to correspond to a preset target power over time.

[0091] According to one embodiment, the control unit (12) can detect the user's puff by detecting the power supplied to the heater (18, 24). More specifically, the control unit (12) can control the power supplied to the heater (18, 24) using a PID method. When the user's puff occurs, a temporary temperature drop may occur in the space where the aerosol generating item is inserted (hereinafter, insertion space), the heater (18, 24), etc. Accordingly, a change may occur in the power (or current) supplied to the heater (18, 24) during the power control of the PID method. The control unit (12) can detect the user's puff based on the change in the controlled power.

[0092] According to one embodiment, the control unit (12) can prevent the heater (18, 24) from overheating. For example, the control unit (12) can control the operation of the power conversion circuit to reduce the amount of power supplied to the heater (18, 24) or stop the power supply to the heater (18, 24) based on the fact that the temperature of the heater (18, 24) exceeds a preset limit temperature.

[0093] According to one embodiment, the control unit (12) can control the charging and discharging of the power source (11). For example, the control unit (12) can check the temperature of the power source (11) using a temperature sensor (e.g., sensor unit (13)). The control unit (12) can cut off the charging of the power source (11) if the temperature of the power source (11) is above a first limit temperature. The control unit (12) can stop the use (e.g., discharge) of the power stored in the power source (11) if the temperature of the power source (11) is above a second limit temperature. The control unit (12) can calculate the remaining capacity of the power stored in the power source (11). For example, the control unit (12) can calculate the remaining capacity of the power source (11) based on the voltage and / or current sensing values ​​of the power source (11).

[0094] According to one embodiment, the control unit (12) can control the power supply to the heater (18, 24) based on the result detected by the sensor unit (13).

[0095] According to one embodiment, the control unit (12) can control the power supply to the heater (18, 24) based on the insertion and / or removal of an aerosol-generating article into the insertion space. For example, the control unit (12) can control the power supply to the heater (18, 24) when it is determined that an aerosol-generating article has been inserted into the insertion space using an insertion detection sensor (e.g., sensor unit (13)). The control unit (12) can cut off the power supply to the heater (18, 24) when it is determined that an aerosol-generating article has been removed from the insertion space using an insertion detection sensor (e.g., sensor unit (13)). The control unit (12) may also determine that an aerosol-generating article has been removed from the insertion space if the temperature of the heater (18, 24) is above a limit temperature or the temperature change slope of the heater (18, 24) is above a set slope.

[0096] According to one embodiment, the control unit (12) can control the power supply time and / or power supply amount for the heater (18, 24) based on the state of the aerosol generating article. For example, the control unit (12) can increase the power supply time (e.g., preheating time) for the heater (18, 24) if it is determined that the aerosol generating article is in an over-humid state using an over-humidity detection sensor (e.g., sensor unit (13)).

[0097] According to one embodiment, the control unit (12) can control the power supply to the heater (18, 24) based on whether the aerosol-generating article is reused. For example, if the control unit (12) determines that the aerosol-generating article has been used, it can cut off the power supply to the heater (18, 24).

[0098] According to one embodiment, the control unit (12) can control the power supply to the heater (18, 24) based on whether the cartridge is coupled and / or removed. For example, the control unit (12) can use a cartridge detection sensor (e.g., sensor unit (13)) to determine that the cartridge is separated, and if it is determined that the cartridge is separated, the power supply to the heater (18, 24) is stopped or the power is not supplied to the heater (18, 24).

[0099] According to one embodiment, the control unit (12) can control the power supply to the heater (18, 24) based on whether the aerosol generating material of the cartridge is depleted. For example, the control unit (12) may determine that the aerosol generating material of the cartridge is depleted if it determines that the temperature of the heater (18, 24) exceeds a limit temperature while preheating the heater (18, 24) (i.e., during the preheating period). If it is determined that the aerosol generating material of the cartridge is depleted, the control unit (12) may cut off the power supply to the heater (18, 24).

[0100] According to one embodiment, the control unit (12) can control the power supply to the heater (18, 24) based on whether the cartridge is usable. For example, the control unit (12) may determine that the cartridge is unusable if, based on data stored in the memory (17), the current number of puffs is determined to be greater than or equal to the maximum number of puffs set in the cartridge. Alternatively, the control unit (12) may determine that the cartridge is unusable if the total time the heater (18, 24) is heated is greater than or equal to the preset maximum time, or if the total amount of power supplied to the heater (18, 24) is greater than or equal to the preset maximum amount of power. In this case, the control unit (12) may stop the power supply to the heater (18, 24) or control that power is not supplied to the heater (18, 24).

[0101] According to one embodiment, the control unit (12) can control the power supply to the heater (18, 24) based on the user's puff. For example, the control unit (12) can determine whether a puff has occurred and / or the intensity of the puff using a puff sensor (e.g., sensor unit (13)). The control unit (12) can cut off the power supply to the heater (18, 24) when the number of puffs reaches a preset maximum number of puffs or / or when no puff is detected for more than a preset time. The control unit (12) may also control the power supply to the heater (18, 24) when a puff is detected.

[0102] According to one embodiment, the control unit (12) can control the power supply to the heater (18, 24) based on whether the aerosol generating item (or cartridge) is genuine and / or of a specific type. For example, the control unit (12) can detect whether the aerosol generating item is genuine and / or of a specific type using a cigarette identification sensor (e.g., sensor unit (13)). For example, if the control unit (12) detects that the aerosol generating item (or cartridge) is counterfeit, it can cut off the power supply to the heater (18, 24). If the control unit (12) detects that the aerosol generating item (or cartridge) is genuine, it can control (e.g., start) the power supply to the heater (18, 24). For another example, the control unit (12) can control the power supply to the heater (18, 24) differently depending on the specific type of the aerosol generating item (or cartridge). More specifically, the control unit (12) can control the temperature and / or power of the heater (18, 24) based on a first temperature profile (or a first power profile) when the aerosol generating article (or cartridge) is detected to be a first aerosol generating article (or a first cartridge), and control the temperature and / or power of the heater (18, 24) based on a second temperature profile (or a second power profile) when the aerosol generating article (or a second cartridge) is detected to be a second aerosol generating article (or a second cartridge).

[0103] According to one embodiment, the control unit (12) can control the output unit (14) based on the result detected by the sensor unit (13). For example, the control unit (12) can control the output unit (14) to provide visual, tactile, and / or auditory information that the aerosol generating device (1) will soon be terminated when the number of puffs counted using the puff sensor (e.g., sensor unit (13)) reaches a preset number. For example, the control unit (12) can also control the output unit (14) to provide visual, tactile, and / or auditory information regarding the temperature of the heater (18, 24).

[0104] According to one embodiment, the control unit (12) may store and update a history of the event that occurred in the memory (17) based on the occurrence of a predetermined event. For example, the event may include operations performed in the aerosol generating device (1), such as detection of insertion of an aerosol generating article, initiation of heating of the aerosol generating article, puff detection, puff termination, detection of overheating of the heater (18, 24), detection of overvoltage application to the heater (18, 24), termination of heating of the aerosol generating article, power on / off of the aerosol generating device (1), initiation of charging of the power source (11), detection of overcharging of the power source (11), termination of charging of the power source (11), etc. For example, the history of the event may include the time and date when the event occurred, log data corresponding to the event, etc. For example, if a predetermined event is the detection of insertion of an aerosol-generating article, the log data corresponding to the event may include data regarding the sensing value of an insertion detection sensor (e.g., sensor unit (13)). For example, if a predetermined event is the detection of overheating of a heater (18, 24), the log data corresponding to the event may include data regarding the temperature of the heater (18, 24), the voltage applied to the heater (18, 24), the current flowing through the heater (18, 24), etc.

[0105] According to one embodiment, the control unit (12) can control the communication unit (16) to form a communication link with an external device, such as a user's mobile terminal.

[0106] According to one embodiment, when the control unit (12) receives authentication data from an external device via a communication link, it may release the restriction on the use of at least one function (e.g., heating function) of the aerosol generating device (1). For example, the authentication data may include the user's birthday, a unique number representing the user, whether the user's authentication is complete, etc.

[0107] According to one embodiment, the control unit (12) can transmit data regarding the status of the aerosol generating device (1) (e.g., remaining capacity of the power supply (11), operating mode, etc.) to an external device via a communication link. The transmitted data can be output through a display of the external device, etc.

[0108] According to one embodiment, when a control unit (12) receives a location search request for an aerosol generating device (1) from an external device via a communication link, the control unit (12) can control the output unit (14) to perform an operation corresponding to the location search. For example, the control unit (12) can control the haptic unit to generate vibrations or control the display to output an object corresponding to the location search and the end of the search.

[0109] According to one embodiment, the control unit (12) can perform a firmware update when firmware data is received from an external device through a communication link.

[0110] According to one embodiment, the control unit (12) transmits data regarding the sensing value of at least one sensor unit (13) to an external server (not shown) via a communication link, and receives and stores a learning model generated by learning the sensing value through machine learning, such as deep learning, from the server. The control unit (12) can use the learning model received from the server to perform operations such as determining the user's inhalation pattern and generating a temperature profile.

[0111] Although not illustrated in FIG. 1, the aerosol generating device (1) may further include a power protection circuit. The power protection circuit may include at least one switching element and may cut off the power supply (11) in response to overcharging and / or over-discharging of the power supply (11). The aerosol generating device (1) may further include a connection interface, such as a USB (universal serial bus) interface, and may transmit and receive information or charge the power supply (11) by connecting to another external device through the connection interface.

[0112] The aerosol generating article mentioned in the present disclosure may include at least one aerosol generating rod (e.g., a medium part) and at least one filter rod. A heater (18) may be positioned to correspond to at least one aerosol generating rod and may be designed differently depending on the arrangement order and / or position of the aerosol generating rod and the filter rod. The aerosol generating rod may include at least one of nicotine, an aerosol generating material, and an additive. For example, the aerosol generating material may include glycerin (e.g., vegetable glycerin (VG)) and / or propylene glycol (PG), and may include various other materials. For example, the additive may include flavoring agents and / or organic acids, and may include various other materials. For example, the aerosol generating rod may comprise an aerosol generating substrate (e.g., a sheet) impregnated with a liquid non-tobacco material (e.g., an aerosol generating material and / or nicotine), and / or may comprise a solid tobacco material (e.g., leaf tobacco, reconstituted tobacco, etc.). The tobacco material may be included in the aerosol generating rod in various forms, such as whole tobacco, granules, or powder. According to one embodiment, the additive of the aerosol generating rod may comprise a basic material. Based on the basic material, the nicotine in the tobacco material included in the aerosol generating rod may have a basic pH (e.g., pH 7.0 or higher). In this case, freebase nicotine may be released from the aerosol generating rod even at low temperatures. According to one embodiment, the aerosol generating rod comprises two or more aerosol generating rods, and said two or more aerosol generating rods may each comprise a tobacco material and / or a non-tobacco material.Meanwhile, although not illustrated, at least one aerosol generating rod and at least one filter rod may each and / or integrally be wrapped by at least one wrapper. In the present disclosure, the aerosol generating article may be referred to as a stick.

[0113] The cartridge mentioned in the present disclosure may contain an aerosol generating material having any one of the states, such as a liquid state, a solid state, a gaseous state, or a gel state. The aerosol generating material may include a liquid composition. For example, the liquid composition may be a liquid containing a tobacco-containing material containing a volatile tobacco flavor component, or a liquid containing a non-tobacco material. Meanwhile, the cartridge may include a storage portion containing the aerosol generating material and / or a liquid delivery means impregnated (containing) the aerosol generating material. For example, the liquid delivery means may include a wick such as a cotton fiber, a ceramic fiber, a glass fiber, or a porous ceramic. The cartridge heater (24) may be included in the cartridge in a coil-shaped structure that surrounds (or winds) the liquid delivery means or in a structure that contacts one side of the liquid delivery means. Alternatively, the cartridge heater (24) may be included in an aerosol generating device (1) that is detachable from the cartridge.

[0114] FIG. 2 illustrates an aerosol generating device (1) according to one embodiment. FIG. 3 illustrates an aerosol generating device (1) according to one embodiment.

[0115] According to one embodiment, the aerosol generating device (1) may include a housing (10), a power supply (11), a control unit (12), a sensor unit (13), and / or a heater (182, 183) (e.g., the heater (18) of FIG. 1). However, it will be understood by those skilled in the art related to this embodiment that the components included in the aerosol generating device (1) are not limited to those shown in FIG. 2 or FIG. 3, and that some of the components may be omitted or new configurations may be added. The aerosol generating device (1) shown in FIG. 2 may be referred to as an 'internal heating type' aerosol generating device that heats the inside of an aerosol generating article (2). The aerosol generating device (1) shown in FIG. 3 may be referred to as an 'external heating type' aerosol generating device that heats the outside of an aerosol generating article (2). In the following drawings, descriptions that overlap with FIG. 1 will be omitted.

[0116] According to one embodiment, the housing (10) may provide a space that is open upward to allow an aerosol generating article (2) to be inserted. In the present disclosure, the space that is open upward may be referred to as an insertion space. The insertion space may be formed by being recessed to a predetermined depth toward the interior of the housing (10) so that at least a portion of the aerosol generating article (2) can be inserted. The depth of the insertion space may be greater than the length of the area containing the aerosol generating material and / or medium in the aerosol generating article (2). The lower end of the aerosol generating article (2) may be inserted into the interior of the housing (10), and the upper end of the aerosol generating article (2) may protrude outside the housing (10). A user may take the upper end of the aerosol generating article (2) exposed to the outside into their mouth and inhale the aerosol.

[0117] According to one embodiment, the heater (182, 183) can heat the aerosol-generating article (2).

[0118] Referring to FIG. 2, the heater (182) may be an internal heating type heater.

[0119] According to one embodiment, the internal heating element may extend upward in a space (i.e., an insertion space) into which the aerosol generating article (2) is inserted. For example, the internal heating element may include a rod-shaped or needle-shaped heating element as illustrated, but may also include various heating elements such as a tubular heating element or a plate-shaped heating element. The internal heating element may be inserted through the lower part of the aerosol generating article (2).

[0120] According to one embodiment, the internal heating type heater may include an electric resistance heater and / or an induction heating type heater.

[0121] For example, an electric resistive heater may contain an electric resistive material on the inside (e.g., inner hollow or inner surface) or on the outside (e.g., outer surface) and may be heated as current flows through the electric resistive material. In this case, the electric resistive heater may be electrically connected to a power source (11) and may be directly heated by receiving current from the power source (11). Additionally, the induction coil (181) may be omitted.

[0122] For example, in the case of an induction heating type heater, the aerosol generating device (1) may include an induction coil (181) that surrounds at least a portion of an internal heating type heater (e.g., is placed externally to correspond to the length of at least a portion of the heater). In this case, a magnetic flux concentrator, etc., may be further included outside the induction coil (181) to increase the efficiency of induction heating. The induction heating type heater may include a susceptor and may generate heat based on a magnetic field generated from the induction coil (181). According to one embodiment, the induction heating type heater (e.g., susceptor) (or a heater module including the same) may be disposed so as to be detachable from the housing (10).

[0123] According to one embodiment, the heater (182) may be a multiple heater. The multiple heater may include a first heater and a second heater and may be inserted into an aerosol generating article (2). The first heater and the second heater may be arranged side by side along the longitudinal direction. The first heater and the second heater may operate as electric resistive heaters and / or induction heating heaters, and may be heated sequentially or simultaneously. In this case, the first heater and the second heater may be respectively placed at positions corresponding to longitudinal positions of two or more aerosol generating rods. Alternatively, the first heater and the second heater may be respectively placed at positions corresponding to longitudinal positions of a first part and a second part of a single aerosol generating rod. Meanwhile, if the heater (182) is an induction heating type heater, the aerosol generating device (1) includes a first induction coil and a second induction coil, and the first induction coil and the second induction coil may be respectively placed at positions corresponding to longitudinal positions of the first heater and the second heater. Alternatively, the first heater and the second heater may be respectively placed at positions corresponding to longitudinal positions of a first part and a second part of a single heater (182). In addition, the heater and / or induction coil may include three or more.

[0124] According to one embodiment, a susceptor may be placed (or included) inside an aerosol generating article (2) (e.g., a medium part), and the susceptor included inside the aerosol generating article (2) may be implemented to generate heat based on a magnetic field generated from an induction coil (181).

[0125] Referring to FIG. 3, the heater (183) may be an external heating type heater.

[0126] According to one embodiment, an external heating type heater may extend upwardly around a space (i.e., an insertion space) into which an aerosol generating article (2) is inserted. For example, the external heating type heater may be positioned to surround at least a portion of the insertion space. As an example, the external heating type heater may include a tube shape (e.g., a cylindrical shape) containing a hollow inside. The external heating type heater may also include a shape containing a hollow inside and surrounding said hollow. In this case, the external heating type heater may be supported by a polyimide film. A heater supported by such a film may be referred to as a film heater. The external heating type heater may be positioned to surround at least a portion of the insertion space. The external heating type heater may heat the outside of the aerosol generating article (2) inserted into said hollow.

[0127] According to one embodiment, the external heating type heater may include an electric resistive heater and / or an induction heating type heater, and a description redundant with FIG. 2 is omitted. Meanwhile, in the case of an induction heating type heater, the aerosol generating device (1) may include an external heating type heater implemented as a tube-shaped susceptor and may include an induction coil (181) that surrounds at least a portion of the external heating type heater (e.g., placed externally to correspond to the length of at least a portion of the heater). Additionally, the induction coil (181) may include a fan coil. Meanwhile, if the external heating type heater is an electric resistive heater, a separate induction coil (181) may be omitted because heat generation is possible through the flow of current on the tube-shaped electric resistive heater (e.g., film heater). Meanwhile, an insulating material may be placed on the outside of the external heating type heater. This reduces the heat radiating outward from the heater (183) and applied to the outside of the housing (10).

[0128] According to one embodiment, the heater (183) may be a multiple heater, and the first heater and the second heater may be arranged side by side along the longitudinal direction to each surround at least a portion of the insertion space. The first heater and the second heater may operate as an electric resistive heater and / or an induction heating type heater, and may be heated sequentially or simultaneously. Meanwhile, if the heater (183) is an induction heating type heater, the aerosol generating device (1) includes a first induction coil and a second induction coil, and the first induction coil and the second induction coil may be respectively arranged at positions corresponding to the longitudinal positions of the first heater and the second heater. Alternatively, the first heater and the second heater may be respectively arranged at positions corresponding to the longitudinal positions of the first portion and the second portion of a single heater (183).

[0129] Unlike as depicted in FIG. 2 or FIG. 3, the heater (182) of FIG. 2 and the heater (183) of FIG. 3 may be included together in the aerosol generating device (1). In this case, the heater (182) may heat the inside of the aerosol generating article (2), and the heater (183) may heat the outside of the aerosol generating article (2).

[0130] According to one embodiment, the aerosol generating device (1) may be provided with an airflow channel through which air flows. For example, the housing (10) may include a structure (e.g., a hole) through which air from the outside can be introduced into the housing (10). The air introduced into the housing (10) may be introduced into the aerosol generating article (2) through the bottom (i.e., upstream side) of the aerosol generating article (2). The aerosol generated based on the heating of the aerosol generating article (2) may be inhaled into the user's mouth through the top (i.e., downstream side) of the aerosol generating article (2) together with the introduced air.

[0131] FIG. 4 illustrates an aerosol generating device (1) according to one embodiment.

[0132] According to one embodiment, the aerosol generating device (1) may include a housing (10), a power source (11), a control unit (12), a sensor unit (13), and / or a heater (183, 24) (e.g., the heater (18, 24) of FIG. 1). However, it will be understood by those skilled in the art related to this embodiment that the components included in the aerosol generating device (1) are not limited to those shown in FIG. 4, and some of the components may be omitted or new components may be added. In the following drawings, descriptions that overlap with FIG. 1 will be omitted.

[0133] According to one embodiment, the housing (10) may provide a space (hereinafter, insertion space) that is open upward so that an aerosol generating article (2) can be inserted. The insertion space may be formed by being recessed to a predetermined depth toward the interior of the housing (10) so that at least a portion of the aerosol generating article (2) can be inserted. The lower end of the aerosol generating article (2) may be inserted into the interior of the housing (10), and the upper end of the aerosol generating article (2) may protrude to the exterior of the housing (10).

[0134] Unlike what is described, the cartridge (19) may provide an insertion space for receiving an aerosol generating article (2). In this case, the insertion space may be formed by being recessed to a certain depth toward the interior of the cartridge (19) so that at least a portion of the aerosol generating article (2) can be inserted. The bottom of the aerosol generating article (2) may be inserted into the interior of the cartridge (19), and the top of the aerosol generating article (2) may protrude outside the cartridge (19). Also, in this case, the aerosol generating device (1) may not include a heater (183).

[0135] According to one embodiment, the depth of the insertion space may be greater than the length of the area containing the aerosol generating material and / or medium in the aerosol generating article (2). A user may put the top of the aerosol generating article (2) exposed to the outside into their mouth and inhale air.

[0136] According to one embodiment, a heater (183) can heat an aerosol generating article (2). The heater (183) may extend upward around a space (i.e., an insertion space) into which the aerosol generating article (2) is inserted. For example, the heater (183) may be in the form of a tube (e.g., a cylinder) containing a hollow inside. The heater (183) may include a form that contains a hollow inside and surrounds said hollow. In this case, the heater (183) may be supported by a polyimide film. A heater supported by such a film may be referred to as a film heater. The heater (183) may be positioned to surround at least a portion of the insertion space. The heater (183) may heat the outside of the aerosol generating article (2) inserted into said hollow. In the present disclosure, the heater (183) may be referred to as an external heating type heater that heats the outside of the aerosol generating article (2). Meanwhile, an insulating material may be placed on the outside of the heater (183). Through this, heat radiating outward from the heater (183) and applied to the outside of the housing (10) can be reduced.

[0137] According to one embodiment, the heater (183) may include an electric resistive heater and / or an induction heating type heater.

[0138] For example, an electric resistive heater may include an electric resistive material and may be heated as current flows through the electric resistive material. In this case, the electric resistive heater may be electrically connected to a power source (11) and may be directly heated by receiving current from the power source (11).

[0139] For example, in the case of an induction heating type heater, the aerosol generating device (1) may further include an induction coil (not shown) that surrounds at least a portion of the heater (183) (e.g., placed externally to correspond to the length of at least a portion of the heater (183)). In this case, a magnetic flux concentrator, etc., may be further included outside the induction coil (not shown) to increase the efficiency of induction heating. The induction heating type heater may include a susceptor and generate heat based on a magnetic field generated from the induction coil (not shown).

[0140] According to one embodiment, the heater (183) may be a multiple heater. The multiple heater may include a first heater and a second heater and may be inserted into an aerosol generating article (2). The first heater and the second heater may be arranged side by side along the longitudinal direction. The first heater and the second heater may operate as an electric resistive heater and / or an induction heating type heater, and may be heated sequentially or simultaneously. In this case, the first heater and the second heater may be respectively placed at positions corresponding to longitudinal positions of two or more aerosol generating rods. Alternatively, the first heater and the second heater may be respectively placed at positions corresponding to longitudinal positions of a first part and a second part of a single aerosol generating rod. Meanwhile, if the heater (183) is an induction heating type heater, the aerosol generating device (1) includes a first induction coil and a second induction coil, and the first induction coil and the second induction coil may be respectively placed at positions corresponding to longitudinal positions of the first heater and the second heater. Alternatively, the first heater and the second heater may be respectively placed at positions corresponding to longitudinal positions of a first part and a second part of a single heater (183). In addition, the heater and / or induction coil may include three or more.

[0141] Unlike what is described, the aerosol generating device (1) may not include a heater (183). The aerosol generating article (2) may be heated directly or indirectly by the cartridge heater (24), or may not be heated substantially. Indirect heating may mean that the aerosol generating article (2) is heated by receiving heat contained in the aerosol as the aerosol generated by the cartridge heater (24) passes through the aerosol generating article (2). In this case, the aerosol generating device (1) may be referred to as a non-heating (or indirectly heated) aerosol generating device. The aerosol generating rod of the aerosol generating article (2) may contain additives such as a basic substance. Based on this basic substance, the nicotine contained in the aerosol generating rod may have a basic pH (e.g., pH 7.0 or higher). This basic nicotine can flow into the user's mouth along with the aerosol flowing into the aerosol generating article (2) from the cartridge (19) described later.

[0142] Unlike what is described, the heater (183) may include an internal heating type heater. For example, the internal heating type heater may include various heating elements such as a rod type, a tubular type heating element, a plate type heating element, or a needle type heating element. The internal heating type heater may be inserted through the bottom of the aerosol generating article (2) and may be set to heat the inside of the aerosol generating article (2).

[0143] According to one embodiment, the cartridge (19) may be detachably coupled to the housing (10). For example, a space may be formed on one side of the housing (10), and at least a portion of the cartridge (19) may be inserted into the space formed on one side of the housing (10) so that the cartridge (19) may be mounted on the housing (10). Alternatively, the cartridge (19) may be integrally formed with the housing (10).

[0144] According to one embodiment, the aerosol generating device (1) and / or cartridge (19) may be provided with an airflow channel through which air flows. For example, the housing (10) may include a structure that allows air from the outside to flow into the interior of the housing (10) when the cartridge (19) is inserted. The incoming air may pass through the cartridge (19) and flow into the insertion space through the airflow channel (CN) and into the user's oral cavity. The airflow channel (CN) may include various structures to reduce residual droplets or to facilitate airflow.

[0145] In FIG. 4, the cartridge (19) is shown positioned on the side of the aerosol generating article (2) and the airflow channel (CN) is shown formed from the side of the aerosol generating article (2) to the bottom (i.e., upstream side) of the aerosol generating article (2), but the positions of the cartridge (19) and the airflow channel (CN) are not limited thereto. For example, the cartridge (19) may be positioned adjacent to the bottom (i.e., upstream side) of the aerosol generating article (2), in which case the airflow channel (CN) may be formed in a substantially straight shape to connect the cartridge (19) and the bottom (i.e., upstream side) of the aerosol generating article (2).

[0146] According to one embodiment, the cartridge (19) may include a storage portion (C0) containing an aerosol generating material, a cartridge heater (24), and / or a liquid delivery means impregnating (containing) the aerosol generating material. The liquid delivery means may impregnate the aerosol generating material supplied from the chamber (C0). For example, the liquid delivery means may include a wick such as cotton fiber, ceramic fiber, glass fiber, or porous ceramic.

[0147] According to one embodiment, the cartridge heater (24) can heat an aerosol generating material contained in the cartridge (19). For example, the cartridge heater (24) may include an electric resistive heater and / or an induction heating heater.

[0148] For example, an electric resistive heater may include an electric resistive material and may be heated as current flows through the electric resistive material. For another example, in the case of an induction heating type heater, the aerosol generating device (1) may further include an induction coil (not shown) around the induction heating type heater. The induction heating type heater may include a susceptor and may generate heat based on a magnetic field generated from the induction coil (not shown). The cartridge heater (24) may be formed in a coil shape that surrounds (or wraps around) the liquid delivery means and / or in a shape that contacts one side of the liquid delivery means (e.g., a pattern shape).

[0149] Unlike what is described, the cartridge heater (24) may be included in the aerosol generating device (1). For example, the cartridge heater (24) may be included inside the housing (10). In this case, the cartridge (19) and the cartridge heater (24) may be separated by removing the cartridge (19).

[0150] According to one embodiment, an aerosol may be generated based on the heat generated by the cartridge heater (24). For example, as the aerosol generating material impregnated in the liquid delivery means is heated by the cartridge heater (24), vapor may be generated from the aerosol generating material, and as the generated vapor is mixed with the outside air introduced into the cartridge (19), an aerosol may be generated. The aerosol generated by the cartridge heater (24) may be introduced into the aerosol generating article (2) through the airflow channel (CN). While the aerosol passes through the aerosol generating article (2), tobacco or flavoring material may be added to the aerosol, and the aerosol with added tobacco or flavoring material may be inhaled into the user's mouth through one end of the aerosol generating article (2).

[0151] FIG. 5 illustrates a fan module of an aerosol generating device according to one embodiment.

[0152] Referring to FIG. 5, a fan module (20) of an aerosol generating device (1) according to one embodiment of the present invention may include a blade section (201) comprising one or more blades, a motor (not shown) for driving the blade section (201), and a fan heater (202) for heating the airflow generated through the blade section (201). The fan module (20) may be equipped with a power supply section (204) to supply current to the fan heater (202) and the motor.

[0153] The blade portion (201) includes at least one blade. The blade portion (201) can rotate and generate airflow. The blade portion (201) can be rotated in a first direction or a second direction by a motor. The second direction may be opposite to the first direction. The first direction or the second direction may correspond to a clockwise or counterclockwise direction. That is, the blade portion (201) may be capable of rotating in both directions.

[0154] The direction of airflow generated according to the rotation of the blade portion (201) may correspond to the direction of rotation of the blade portion (201). The direction of rotation of the blade portion (201) and the direction of airflow may be defined based on the airflow channel (CN) formed in the aerosol generating device (1).

[0155] An airflow channel (CN) may be provided in the aerosol generating device (1). A hole may be formed in the housing (10) of the aerosol generating device (1) through which air can be introduced from the outside of the aerosol generating device (1). Additionally, an insertion space into which an aerosol generating article (2) is inserted may be formed in the aerosol generating device (1). The airflow channel (CN) may be provided to communicate the hole and the insertion space.

[0156] While the user's puff is in progress, external air may be introduced through the hole, and air may flow into the insertion space along the airflow channel (CN). A fan module (20) may be placed in the airflow channel (CN). When the blade portion (201) of the fan module (20) rotates in a first direction, the generated airflow may be generated in a direction from the fan module (20) toward the insertion space. The first direction may be the same as the direction in which air introduced from outside the aerosol generating device (1) flows into the insertion space along the airflow channel (CN).

[0157] When the blade portion (201) of the fan module (20) rotates in a second direction, the generated airflow may be generated in a direction from the insertion space toward the outside of the aerosol generating device (1). The second direction may be opposite to the aforementioned first direction. The second direction may be the direction in which air is discharged from the insertion space toward the outside of the aerosol generating device (1) along the airflow channel (CN).

[0158] A fan heater (202) may be positioned on one side of the blade portion (201). The fan heater (202) may heat the airflow generated in the blade portion (201). The fan heater (202) may be an electric resistive heater. The airflow may be heated in such a way that current flows through the electric resistive material and the electric resistive material is heated. Alternatively, the fan heater (202) may include at least one coil. When power is supplied to the coil from the power supply portion (204), the coil may be heated. The airflow generated in the blade portion (201) may be heated as it passes through the coil.

[0159] The fan heater (202) may be formed in a shape that includes an empty space to allow airflow to pass through. The fan heater (202) may include at least one coil, and a plurality of coils may be arranged at a predetermined interval. Airflow may pass between the coils and be heated.

[0160] For example, the fan heater (202) can be formed into a mesh-shaped coil. When the coil is formed into a mesh shape, the contact area between the airflow passing through the coil and the coil is wide, making it easier to heat the airflow.

[0161] The fan module (20) may include a housing (203) that forms the outer boundary of the fan module (20). A blade portion (201) may be disposed inside the housing (203) of the fan module (20). The housing (203) of the fan module (20) may be formed so that both sides are open. One side that is open may be disposed to be covered by a fan heater (202). The fan heater (202) may be provided only on one side of the blade portion (201). The arrangement relationship between the fan heater (202) and the blade portion (201) may be determined according to the direction in which the configuration in which the airflow heated through the fan heater (202) can be utilized is arranged.

[0162] The fan module (20) can be driven by the control unit (12). The control unit (12) can control the driving of the fan module (20) based on the state of the aerosol generating device (1). The control unit (12) can control whether the motor and blade unit (201) are operating, and whether the fan heater (202) is operating. The control unit (12) can independently control the blade unit (201) and the fan heater (202). The control unit (12) can control the rotation direction of the blade unit (201), and the direction of airflow generation can be changed according to the rotation direction of the blade unit (201). The control unit (12) can also control the rotation speed of the blade unit (201). It is necessary to adjust the speed and amount of airflow formed in the blade unit (201) according to the state of the aerosol generating device (1). It is also possible to reduce the noise generated by the device.

[0163] FIGS. 6 to 8 illustrate the internal structure of an aerosol generating device according to one embodiment.

[0164] Referring to FIGS. 6 to 8, a fan module (20) may be provided inside an aerosol generating device (1) to form an airflow. The aerosol generating device (1) may include an airflow channel (CN) connecting an insertion space into which an aerosol generating article (2) is inserted and the outside of a housing (10). The fan module (20) may be placed in the airflow channel (CN) to form an airflow that flows along the airflow channel (CN).

[0165] The fan module (20) can be placed in an area adjacent to the insertion space as shown in FIGS. 6 to 8. The airflow formed by the fan module (20) can be introduced into the aerosol generating article (2).

[0166] The fan module (20) may include a blade portion (201) that forms an airflow and a fan heater (202) that heats the airflow. Through the operation of the fan module (20), an airflow according to the state of the aerosol generating device (1) can be formed to improve the function of the aerosol generating device (1). For example, the fan module (20) can assist in preheating the heater (182, 183) by discharging the heated airflow toward the heater (182, 183). After the aerosol generating article (2) is inserted into the insertion space, an aerosol can be formed inside the aerosol generating article (2) through the preheating of the heater (182, 183). To assist in preheating the heater (182, 183), the fan module (20) can discharge the heated airflow toward the heater while the heater (182, 183) is preheating.

[0167] The fan module (20) can generate airflow to reduce resistance during the user's puff. The user can inhale the top of the aerosol generating item (2) and allow the aerosol inside the aerosol generating item (2) to flow into the oral cavity. The fan module (20) can detect the user's puff and generate airflow in the same direction as the air flow direction along the puff during the puffing process.

[0168] The fan module (20) can generate airflow to cool or dry the inside of the aerosol generating device (1). The aerosol generating device (1) includes a heating heater (182, 183), and since aerosol is formed inside the device, cooling of the device and removal of droplets formed inside may be necessary. The fan module (20) can generate airflow to discharge heated air to the outside of the aerosol generating device (1) when the aerosol generating device (1) is excessively heated or when the user's smoking ends, thereby cooling the device. It is also possible to remove droplets formed inside the aerosol generating device (1) by introducing external air.

[0169] FIG. 6 corresponds to the internal structure of an aerosol generating device (1) equipped with an internal heating type heater (182). FIG. 6 is an enlarged view of a part of the aerosol generating device (1). The internal heating type heater (182) may be placed inside the insertion space of the aerosol generating device (1). When an aerosol generating article (2) is inserted into the insertion space, the internal heating type heater (182) may be inserted into the aerosol generating article (2).

[0170] An airflow channel (CN) communicating with the insertion space may be formed on the inner side of the insertion space. In FIG. 6, the airflow channel (CN) is shown extending from the bottom of the insertion space. The airflow channel (CN) can serve to communicate the outside of the aerosol generating device (1) with the insertion space. Air can be introduced into the interior of the aerosol generating article (2) inserted into the insertion space through the airflow channel (CN). The aerosol formed inside the aerosol generating article (2) through heating by the heater (182) can be inhaled into the user's mouth through the flow of air.

[0171] An airflow channel (CN) may be formed in the lower part of the insertion space. The airflow channel (CN) connects the insertion space and the outside of the aerosol generating device (1) at the lower part of the insertion space. A fan module (20) may be provided in the airflow channel (CN). The fan module (20) may be placed in the airflow channel (CN) to generate an airflow that flows through the airflow channel (CN).

[0172] The fan module (20) may be positioned in an area adjacent to the insertion space. The fan module (20) may be positioned adjacent to the insertion space to form an airflow toward the aerosol-generating article (2) inserted into the insertion space. The fan module (20) may be positioned so that the fan heater (202) faces the insertion space. The airflow generated through the blade portion (201) may flow toward the aerosol-generating article (2) after being heated by the fan heater (202).

[0173] In the case of an internal heating type heater (182), it may include a heater (182) that extends in a rod shape from the bottom of the insertion space. Since the heater (182) extends from the bottom of the insertion space, it may be positioned adjacent to the fan module (20). The fan module (20) may form an airflow toward the heater (182). To allow the airflow formed by the fan module (20) to flow into the insertion space and the heater (182), the fan module (20) may be positioned to face the bottom of the heater (182). The fan module (20) may be positioned to face the bottom of the heater (182) but spaced apart by a predetermined distance. The position where the fan module (20) is positioned may be skewed toward the insertion space side relative to the entire airflow channel (CN). Through this, the airflow formed by the fan module (20) can easily flow into the insertion space and the heater (182).

[0174] The interior of the heater (182) may be empty. A heater (182) with an empty interior can be viewed as a type of tubular heater (182). At least one opening area may be formed in the heater (182). An airflow channel (CN) may be in communication with the interior space of the heater (182). That is, the airflow formed in the fan module (20) may flow along the airflow channel (CN) through the interior of the heater (182) and through the opening area. The airflow passing through the heater (182) may flow into the interior or insertion space of the aerosol generating article (2). The insertion space and the airflow channel (CN) may be in communication through the interior space of the heater (182).

[0175] The aerosol generating device (1) may include a plurality of heaters (182), and the aerosol generating device (1) illustrated in FIG. 6 includes both an internal heating type heater (182) and an external heating type heater. That is, it may include a rod-shaped heater (182) extending from the bottom of the insertion space and a heater provided on the outside of the insertion space. The external heating type heater may include an induction coil (181).

[0176] The aerosol generating device (1) illustrated in FIG. 7 is shown to have an external heating type heater (183) applied. A heater (183) may be provided on the outside of the insertion space. When the aerosol generating article (2) is inserted into the insertion space, the heater (183) can apply heat from the outside of the aerosol generating article (2) and form an aerosol inside the aerosol generating article (2).

[0177] An airflow channel (CN) may be formed in the lower part of the insertion space. The airflow channel (CN) connects the insertion space and the outside of the aerosol generating device (1) at the lower part of the insertion space. A fan module (20) may be provided in the airflow channel (CN). The fan module (20) may be placed in the airflow channel (CN) to generate an airflow that flows through the airflow channel (CN).

[0178] The fan module (20) may be positioned in an area adjacent to the insertion space. The fan module (20) may be positioned adjacent to the insertion space to form an airflow toward the aerosol-generating article (2) inserted into the insertion space. The fan module (20) may be positioned so that the fan heater (202) faces the insertion space. The airflow generated through the blade portion (201) may flow toward the aerosol-generating article (2) after being heated by the fan heater (202).

[0179] The airflow channel (CN) can be directly connected to the insertion space. A fan module (20) positioned adjacent to the insertion space can directly flow airflow into the interior of the insertion space through the airflow channel (CN). When an aerosol generating article (2) is inserted and a heater (183) heats the aerosol generating article (2), the fan module (20) can heat the airflow and flow it into the insertion space.

[0180] FIG. 8 illustrates the interior of an aerosol generating device (1) equipped with a cartridge (19). When the cartridge (19) is equipped, an airflow channel (CN) may be formed to connect the cartridge (19) and the insertion space. One end of the airflow channel (CN) may be connected to the bottom of the insertion space. The other end of the airflow channel (CN) may be connected to the cartridge (19). Air introduced from the outside may pass through the cartridge (19) and then flow into the insertion space along the airflow channel (CN).

[0181] The fan module (20) may be placed in an airflow channel (CN) and may be placed in an area adjacent to the insertion space. The fan module (20) may be placed in a location adjacent to the insertion space to form an airflow. A heater (183) may be provided in the insertion space. The heater (183) may heat the aerosol generating article (2) inserted into the insertion space. The fan module (20) may be placed adjacent to the insertion space to form an airflow toward the insertion space and assist in preheating the heater (183). Additionally, it may form an airflow to reduce resistance when the user puffs.

[0182] In the case of an aerosol generating device (1) equipped with a cartridge (19), an internal heating type heater (182) may be provided as shown in FIG. 6. The arrangement of the heater (182) and the fan module (20) may be similar to that shown in FIG. 6. The fan module (20) is placed in an airflow channel (CN) and may be positioned to face the bottom of the heater (182). The fan module (20) may be positioned adjacent to an insertion space on the airflow channel (CN).

[0183] FIG. 9 illustrates the internal structure of an aerosol generating device equipped with a plurality of fan modules.

[0184] An aerosol generating device (1) according to one embodiment of the present invention may have at least one fan module (20). That is, the aerosol generating device (1) may have a plurality of fan modules (20). Referring to FIG. 9, it is illustrated that two fan modules (20a, 20b) are provided. Each fan module (20a, 20b) may be referred to as the first fan module (20a) and the second fan module (20b).

[0185] The first fan module (20a) and the second fan module (20b) may be placed in the airflow channel (CN). The first fan module (20a) may be placed in an area adjacent to the insertion space. The first fan module (20a) may assist in preheating the aerosol generating device (1). The first fan module (20a) may generate airflow to reduce resistance when the user puffs.

[0186] Based on the direction of airflow according to the user's puff, the airflow channel (CN) can be divided into upstream and downstream. The downstream of the airflow channel (CN) corresponds to the area adjacent to the insertion space. The first fan module (20a) can be placed downstream of the airflow channel (CN). The second fan module (20b) can be placed upstream of the airflow channel (CN) relative to the first fan module (20a).

[0187] The first fan module (20a) and the second fan module (20b) may be arranged at a predetermined distance apart. The second fan module (20b) forms an airflow on the airflow channel (CN) and can easily draw in air from outside the housing (10). The second fan module (20b) can perform the function of flowing the aerosol formed in the cartridge (19) downstream of the airflow channel (CN). When the user puffs, the second fan module (20b) can form an airflow in a direction corresponding to the user's puff. In this case, the first fan module (20a) and the second fan module (20b) can operate simultaneously. The first fan module (20a) and the second fan module (20b) can operate simultaneously, and it is also possible for them to operate individually depending on the state of the aerosol generating device (1).

[0188] FIGS. 10 and FIGS. 11 illustrate various embodiments of a heater provided in an aerosol generating device.

[0189] The heater illustrated in FIGS. 10 and 11 corresponds to an internal heating type heater (182). The heater (182) may be formed extending from the bottom of the insertion space. The heater (182) may include a heater body (182-a) that extends upward from the insertion space and is inserted into an aerosol generating article (2). The heater body (182-a) may be formed in the shape of a rod or needle. The interior of the heater body (182-a) may be formed to be empty. The heater body (182-a) may include at least one opening region (H) for the flow of air. The heater body illustrated in FIGS. 10 and 11 shows the form in which the opening region (H) is formed.

[0190] The heater body (182-a) of the heater shown in FIGS. 10 and 11 is hollow inside and is shown to have an opening area (H) formed on its surface. The aerosol generating article (2) contains an aerosol generating material for generating an aerosol. The heater body (182-a) can be inserted into the aerosol generating article (2) to heat the aerosol generating material. The aerosol generating material is heated to generate an aerosol, which is then introduced into the user's oral cavity according to the user's puff.

[0191] Since the interior of the aerosol generating article (2) contains an aerosol generating material, it is necessary to heat the aerosol generating material uniformly. In addition, it is necessary to form a wide airflow so that the airflow passing through the interior of the aerosol generating article (2) passes through the entire area of ​​the aerosol generating article (2).

[0192] An opening area (H) may be formed in the heater body (182-a), and the opening area (H) may be in communication with an airflow channel (CN). Air introduced from the airflow channel (CN) may be discharged into the opening area (H) through the internal space of the heater body (182-a). At least one opening area (H) may be formed in the heater body (182-a). By adjusting the arrangement and number of opening areas (H), the airflow flowing inside the aerosol generating article (2) can be controlled.

[0193] FIG. 10 illustrates that a plurality of opening regions (H) are formed in the heater body (182-a). The plurality of opening regions (H) may be formed at predetermined intervals and may be formed over the entire area of ​​the heater body (182-a). Air introduced into the internal space of the heater body (182-a) may pass through the plurality of opening regions (H). The opening regions (H) may be formed along the longitudinal direction of the heater body (182-a). The longitudinal direction of the heater body (182-a) is parallel to the longitudinal direction of the insertion space and the aerosol generating article (2). Accordingly, the airflow passing through the interior of the aerosol generating article (2) may pass through the entire inserted area of ​​the aerosol generating article (2).

[0194] FIG. 11 illustrates an opening area (H) formed at the top of the heater body (182-a) toward the aerosol generating article (2). The opening area (H) is formed at the top of the heater body (182-a), and air passing through the internal space of the heater body (182-a) can be discharged through the opening area (H) at the top of the heater body (182-a). Since the opening area (H) formed at the top of the heater body (182-a) corresponds to the end of the heater body (182-a), the air discharged from that part can spread radially.

[0195] The internal space of the heater body (182-a) is narrow, and an airflow in a high temperature and high pressure state flows through it. When discharged through the opening area (H) of the heater body (182-a), the airflow can spread due to the pressure difference. As the airflow spreads and flows from the opening area (H) to a wide area, the airflow can be formed to pass through a wide area of ​​the aerosol generating article (2).

[0196] Hereinafter, a control method for an aerosol generating device (1) according to one embodiment of the present invention will be described.

[0197] FIG. 12 is a flowchart illustrating a control method for an aerosol generating device according to one embodiment.

[0198] Referring to FIG. 12, a control method for an aerosol generating device (1) according to one embodiment of the present invention may include a step (S10) of recognizing the state of the aerosol generating device and a step (S20) in which a control unit controls a fan module. The control unit (12) may control the fan module (20) in response to the state of the aerosol generating device (1). The specific control method of the fan module (20) may be changed according to the state of the aerosol generating device (1).

[0199] The state of the aerosol generating device (1) can be recognized by the control unit (12). The control unit (12) can identify the state information of the aerosol generating device (1) and, in response, generate a signal to drive the fan module (20). The control unit (12) can control the timing of operation of the fan module (20), the operating time of the fan module (20), and whether the blade unit (201) or the fan heater (202) is operated.

[0200] The state of the aerosol generating device (1) may include various information. For example, the state of the aerosol generating device (1) may include the preheating state of the aerosol generating device (1), whether the user is puffing, whether an aerosol generating item (2) is inserted, or whether the aerosol generating device (1) is terminated. Depending on the perceived state of the aerosol generating device (1), the fan module (20) may operate in different ways.

[0201] The fan module (20) can be operated in at least one mode. The control unit (12) can operate the fan module (20) in a mode corresponding to the state of the aerosol generating device (1). In each mode, the fan module (20) can be controlled in a different way.

[0202] In the following, the operable modes of the fan module (20) are classified into first to third modes. In each mode, the rotation direction of the blade portion (201) and whether power is applied to the fan heater (202) can be set.

[0203] In the first mode, the blade portion (201) of the fan module (20) can rotate in a first direction. At the same time, power can be applied to the fan heater (202). When the blade portion (201) rotates in the first direction, airflow can be generated to flow from the fan module (20) toward the insertion space. When power is applied to the fan heater (202), the fan heater (202) can be heated to a high temperature. The airflow generated by the blade portion (201) rotating in the first direction can be heated in the fan heater (202).

[0204] When the fan module (20) is operated in the first mode, heated airflow can flow toward the insertion space and the aerosol generating article (2) inserted into the insertion space. This can assist in preheating the aerosol generating article (2).

[0205] In the second mode, the blade portion (201) of the fan module (20) can rotate in the first direction. At the same time, power to the fan heater (202) can be cut off. When the blade portion (201) rotates in the first direction, airflow can be generated to flow toward the insertion space. When power to the fan heater (202) is cut off, the fan heater (202) is not heated. The airflow generated by the blade portion (201) rotating in the first direction can flow toward the insertion space without being heated.

[0206] When the fan module (20) operates in the second mode, a relatively low-temperature airflow flows, and cooling and drying of the aerosol generating device (1) can be performed. In addition, resistance to the user's puff can be reduced.

[0207] In the third mode, the blade portion (201) of the fan module (20) can rotate in a second direction. At the same time, power to the fan heater (202) can be cut off. When the blade portion (201) rotates in the second direction, the airflow flows in the insertion space toward the fan module (20). That is, an airflow is formed in the opposite direction to when the blade portion (201) rotates in the first direction.

[0208] When the fan module (20) is operated in the third mode, a relatively low-temperature airflow flows, and cooling and drying of the aerosol generating device (1) can be performed.

[0209] FIGS. 13 to 15 are flowcharts illustrating a method in which a control unit controls a fan module in a first mode or a second mode, and drawings illustrating air flow inside an aerosol generating device.

[0210] FIG. 13 corresponds to a method in which a control unit (12) controls a fan module (20) to assist in preheating an aerosol generating device (1).

[0211] First, a step (S131) ​​of detecting the state of the aerosol generating device may be performed. In the case of the present embodiment, the state of the aerosol generating device (1) corresponds to whether the aerosol generating device (1) is preheated. The control unit (12) may detect (S133) whether the aerosol generating device is preheating.

[0212] Whether the aerosol generating device (1) is preheated can be detected by detecting whether the heater (182, 183) is heated. Whether the aerosol generating device (1) is preheated can be detected by detecting whether the aerosol generating device (1) has started preheating. When it is detected that the aerosol generating device (1) is preheating, the control unit (12) can control the fan module in a first mode (S135).

[0213] In the first mode, the blade portion (201) of the fan module (20) can be rotated in a first direction. At the same time, power can be applied to the fan heater (202). The airflow generated by the rotation of the blade portion (201) in the first direction can pass through the fan heater (202) and flow toward the aerosol generating article (2). Since the air heated through the fan heater (202) flows toward the aerosol generating article (2), the preheating of the aerosol generating article (2) can be completed quickly. That is, the fan module (20) can assist in the preheating of the aerosol generating device (1).

[0214] If the aerosol generating device (1) is not preheating, the step (S131) ​​of detecting the state of the aerosol generating device can be continued.

[0215] FIG. 14 corresponds to a method in which a control unit (12) controls a fan module (20) to remove heated air inside an aerosol generating device (1) or to assist a user's puff.

[0216] First, a step (S141) of detecting the state of the aerosol generating device may be performed. The state of the aerosol generating device (1) may be whether the preheating of the aerosol generating device (1) is complete. If it is detected that the preheating is complete, the control unit (12) may control the fan module (20) in a second mode. If the preheating is not complete, the step of detecting the state of the aerosol generating device (1) may be continued. That is, whether the preheating of the aerosol generating device (1) is complete may be continuously detected.

[0217] Immediately after preheating is complete, the interior of the aerosol generating item (2) is heated to a high temperature to generate aerosol. If a user inhales the aerosol generating item (2) containing high-temperature aerosol and air, the high-temperature aerosol and air may flow into the user's mouth and cause discomfort to the user. Therefore, it is necessary to expel the high-temperature aerosol and air before the user's puff.

[0218] When it is detected that preheating is complete, the control unit (12) controls the fan module in a second mode (S147). In the second mode, the control unit (12) can generate airflow by rotating the blade unit (201) in a first direction. Power applied to the fan heater (202) can be cut off. Airflow can flow along the airflow channel (CN) to the aerosol generating article (2). When airflow enters the aerosol generating article (2), high-temperature aerosol and air can be discharged to the outside of the aerosol generating article (2).

[0219] The control unit (12) can operate the fan module (20) in a second mode for a preset time. The preset time can be set to a time sufficient to discharge high-temperature aerosol and air inside the aerosol generating item (2). When the fan module (20) is operated in the second mode for a preset time, the user can start the puff. The aerosol generating device (1) may provide a separate haptic response to indicate that the user can start the puff.

[0220] A preheating completion alarm may be provided after the preheating of the aerosol generating device (1) is completed. In the case of an aerosol generating device (1) to which a fan module (20) is applied, a preheating completion alarm may be provided after the fan module (20) operates in a second mode for a preset time after the preheating is completed. In this case, the preheating process of the aerosol generating device (1) may include a step of discharging high-temperature aerosol and air inside the aerosol generating article (2).

[0221] Referring to FIG. 14, after the step (S143) of determining whether the aerosol generating device has finished preheating, the step (S145-a) of detecting whether the puff has started may be performed. If the puff has not started, the control unit (12) may operate the fan module (S147) in the aforementioned second mode.

[0222] When a puff start is detected, the fan module (20) can be controlled to assist the user's puff.

[0223] At least a portion of the aerosol generating item (2) is inserted into the insertion space. The user can puff by inhaling the exposed end of the aerosol generating item (2). Through the puff, the aerosol and air inside the aerosol generating item (2) can be inhaled.

[0224] Since the puff is being applied through the aerosol generating item (2), resistance may occur to the puff. The fan module (20) can form an airflow to reduce the resistance occurring to the user's puff. The control unit (12) can operate the fan module in a second mode (S147) in response to the user's puff.

[0225] That is, while the user is performing the puff, the fan module (20) can operate in a second mode. The fan module (20) can operate in a second mode from the time the user starts the puff until the time the user ends the puff. The state of the aerosol generating device (1), which serves as the control standard for the control unit (12), may correspond to the start and end of the puff. Whether the puff is in progress can be detected by a pressure sensor or a temperature sensor.

[0226] Referring to FIG. 15, the direction of the airflow can be determined when the fan module (20) is controlled in a first mode or a second mode. The first mode and the second mode differ in whether power is applied to the fan heater (202). Therefore, the airflow can be generated in the same direction. When the fan module (20) is controlled in a first mode or a second mode, the airflow can be formed from the fan module (20) toward the insertion space.

[0227] Air introduced from outside the aerosol generating device (1) flows along the airflow channel (CN) through the fan module (20) toward the insertion space. An aerosol generating article (2) may be inserted into the insertion space. The airflow may flow through the interior of the aerosol generating article (2).

[0228] If the aerosol generating device (1) is preheating, the fan module (20) is controlled in a first mode, power is applied to the fan heater (202), and heated airflow can be introduced into the interior of the aerosol generating device (1). After the preheating of the aerosol generating device (1) is complete and before the first puff starts, or if the user is performing a puff, the fan module (20) can be controlled in a second mode.

[0229] FIGS. 16 to 18 are flowcharts illustrating a method in which a control unit controls a fan module in a third mode and drawings illustrating air flow inside an aerosol generating device.

[0230] FIGS. 16 and 17 correspond to flowcharts illustrating how a fan module (20) is controlled to cool and dry the interior of an aerosol generating device (1).

[0231] Cooling and drying of the aerosol generating device (1) can be performed after the user's smoking has ended. Thus, the fan module (20) can be controlled by detecting whether the user has finished smoking or whether the device is being used.

[0232] Whether the user has finished smoking can be determined by detecting that the aerosol generating item (2) is separated from the insertion space after the user finishes puffing. After the aerosol generating item (2) is inserted, the user can repeat puffing several times. After the last puff is finished, the user can remove the used aerosol generating item (2) to end smoking or to use the next aerosol generating item (2) (consecutive puffs).

[0233] When the control unit (12) controls the fan module (20) in a third mode, the corresponding state of the aerosol generating device (1) may be whether smoking has ended or whether the device is on or off.

[0234] The control unit (12) can determine that the user's single puff has ended when the aerosol generating item (2) is separated from the insertion space after the user's puff has ended. In this case, the control unit (12) can control the fan module (20) in a third mode.

[0235] When a user's first smoking session is finished, the control unit (12) may control the fan module (20) between the current smoking session and the next smoking session. When the user smokes continuously while replacing the aerosol generating item (2), the control unit (12) may control the fan module (20) in a third mode during the interval between smoking sessions. The aerosol generating device (1) may provide a signal that smoking can begin after the fan module (20) has been operated in the third mode for a preset time. After receiving the smoking start signal, the user may insert the aerosol generating item (2) into the insertion space. Subsequently, the preheating of the aerosol generating device (1) may begin.

[0236] The control unit (12) can detect whether the aerosol generating device (1) is on or off. When the aerosol generating device (1) is turned off and no aerosol generating item (2) is inserted into the insertion space, the fan module (20) can be operated in a third mode. The fan module (20) operates in the third mode for a preset time after the aerosol generating device (1) is turned off and can cool and dry the inside of the aerosol generating device (1).

[0237] After the aerosol generating device (1) is turned off, the aerosol generating device (1) may be stored in the user's storage space. Therefore, when the control unit (12) controls the fan module (20) in the third mode after the aerosol generating device (1) is turned off, the rotational speed of the blade unit (201) may be reduced. The blade unit (201) may rotate at a slower speed than when controlled in the third mode between smoking and forming an airflow.

[0238] When the aerosol generating device (1) is turned off, sufficient margin is provided for the operation time of the fan module (20), so the operation time of the fan module (20) can be increased. If the fan module (20) operates in the third mode for a first time between smoking and smoking, and operates in the third mode for a second time after the aerosol generating device (1) is turned off, the second time can be set longer than the first time.

[0239] In the third mode, the blade portion (201) can be rotated in a second direction, and the power applied to the fan heater (202) can be cut off. When the blade portion (201) rotates in a second direction, an airflow can be formed in the insertion space in a direction toward the fan module (20). Air can be introduced into the airflow channel (CN) through a portion connected to the airflow channel (CN) of the insertion space. Cooling and drying inside the aerosol generating device (1) are possible through external air.

[0240] The third mode may include a plurality of control sections. The section for rotating the blade section (201) in the second direction may correspond to the second direction control section. When the control unit (12) controls the fan module (20) in the third mode, if the fan module (20) is controlled in the second direction control section of the third mode, the blade section (201) may be rotated in the second direction.

[0241] The third mode may further include a first direction control section for rotating the blade portion (201) in a first direction. The third mode may include at least one control section among the first direction control section or the second direction control section, or alternatively, may include both the first direction control section and the second direction control section.

[0242] The third mode can be configured so that the first direction control section and the second direction control section operate alternately. In this case, the blade portion (201) can rotate in the first direction during the application time of the first direction control section and then rotate in the second direction during the application time of the second direction control section.

[0243] The order of the first direction control section and the second direction control section may be changed. Additionally, if each section is applied alternately, the number of repetitions may also be changed. The blade section (201) may operate once in the second direction control section and once in the first direction control section, and then operate once in the second direction control section and once in the first direction control section again.

[0244] The third mode corresponds to a mode for cooling and drying the interior of the aerosol generating device (1), and the state of the aerosol generating device (1) for the control unit (12) to control the fan module (20) in the third mode may include whether it is in an over-humid state. Aerosol is generated inside the aerosol generating item (2), and the aerosol generating item (2) may be in an over-humid state. When smoking through the aerosol generating item (2) in an over-humid state, there is a possibility that liquid droplets may remain inside the aerosol generating device (1).

[0245] The control unit (12) can detect whether the aerosol generating item (2) is in an over-humid state. The over-humid state can be detected through an over-humidity sensor. If the over-humidity sensor determines that the inside of the aerosol generating item (2) is in an over-humid state, the control unit (12) can operate the fan module (20) in a third mode. However, for smooth removal of liquid droplets, the aerosol generating item (2) needs to be separated from the insertion space. Therefore, a step of determining whether the aerosol generating item (2) is in an over-humid state through an over-humidity sensor, and detecting whether the aerosol generating item (2) is separated if it is determined to be in an over-humid state, can be performed. Afterward, when the aerosol generating item (2) is separated from the insertion space, the control unit (12) can control the fan module (20) in a third mode.

[0246] Alternatively, the control unit (12) can control the fan module (20) in a third mode while the aerosol generating item (2) is inserted into the insertion space. While the aerosol generating item (2) is inserted into the insertion space, the control unit (12) can detect whether the aerosol generating item (2) is in an over-humid state, whether the aerosol generating device (1) is heated, etc. While the user's puffing is not taking place, the control unit (12) can control the fan module (20) to remove the over-humidity contained in the aerosol generating item (2) and at the same time discharge heated air and aerosol to the outside of the housing (10).

[0247] When the fan module (20) is operated with the aerosol generating item (2) inserted as described above, the time at which the fan module (20) is operated may correspond to a time when the user's puffing is not performed or a time set by the user. During the interval between the user's puffs, the control unit (12) can operate the fan module (20). Alternatively, the user can operate the fan module (20) by directly operating the control unit (12). When the user feels the need for cooling and drying, the user can operate the aerosol generating device (1) to cause the control unit (12) to operate the fan module (20). The user can operate the fan module (20) by operating a button provided on the aerosol generating device (1). Therefore, the aerosol generating device (1) may be equipped with a button that activates the cooling and drying function through the control unit (12).

[0248] Referring to FIG. 18, in the third mode, the airflow generated by the fan module (20) can be generated in a direction from the fan module (20) toward the insertion space, and conversely, in a direction from the insertion space toward the fan module (20).

[0249] Through bidirectional airflow, internal heat of the aerosol generating device (1) can be discharged to the outside, and aerosol generating material and droplets generated by the aerosol can be removed. Through this, cooling and drying of the aerosol generating device (1) are possible.

[0250] When a bidirectional airflow is generated by the fan module (20), the airflow can flow along the airflow channel (CN). The upstream end of the airflow channel (CN) can be formed in the housing (10) and connected to the outside of the housing (10), and the downstream end of the airflow channel (CN) can be connected to an insertion space.

[0251] In the case of an aerosol generating device (1) in which a cartridge (19) is used, an airflow channel (CN) may be formed along the side of the cartridge (19). A cartridge heater (24) may be disposed at one end of the cartridge (19). The cartridge heater (24) can generate an aerosol by heating an aerosol generating material contained in the cartridge (19). The airflow channel (CN) is formed to allow the aerosol formed in the cartridge heater (24) to move.

[0252] The cartridge (19) contains an aerosol generating material (2) and can provide heated aerosol through an airflow channel (CN). When the fan module (20) forms an airflow toward the cartridge (19) while the cartridge (19) is inserted into the housing (10), there is a risk that the cartridge (19) may be damaged, and there is a risk that the aerosol generating material may leak out due to the damage to the cartridge (19). Therefore, in the case of an aerosol generating device (1) equipped with a cartridge (19), the separation of the cartridge (19) may be considered in the control of the fan module (20).

[0253] The control unit (12) can determine whether the cartridge (19) is separated from the housing (10) when the blade unit (201) is rotated in a second direction to generate airflow toward the fan module (20) in the insertion space. If the cartridge (19) is connected to the housing (10), the control unit (12) can rotate the blade unit (201) only in the first direction without rotating it in the second direction.

[0254] The status information of the aerosol generating device (1) detected by the control unit (12) when controlling the fan module (20) may include whether the aerosol generating item (2) is reused. If the user reuses the previously used aerosol generating item (2), the control unit (12) can detect that the aerosol generating item (2) has been reused.

[0255] Whether the aerosol generating item (2) is reused can be determined by detecting the excessive moisture state of the aerosol generating item (2). When the aerosol generating item (2) is reused, some excessive moisture may be contained inside the aerosol generating item (2) due to previous use. The excessive moisture sensor can detect the excessive moisture state of the aerosol generating item (2) to detect whether the aerosol generating item (2) is reused.

[0256] When the aerosol generating item (2) is reused and the smoking using the reused aerosol generating item (2) ends, the control unit (12) can control the fan module (20) to a third mode. When the control unit (12) detects that the aerosol generating item (2) has been separated from the insertion space after the smoking ends, it can drive the fan module (20) to a third mode. Alternatively, it may be possible to drive the fan module (20) even when the aerosol generating item (2) has not been separated from the insertion space.

[0257] Figure 19 is a flowchart illustrating the state of an aerosol generating device in chronological order.

[0258] When a user uses the aerosol generating device (1), the period from the preheating of the aerosol generating device (1) to the time of turning off the aerosol generating device (1) is divided into multiple areas based on the state of the aerosol generating device (1).

[0259] The first section is the section where the aerosol generating device (1) is turned on and preheating is completed. When a user smokes through the aerosol generating device (1), the process of inserting an aerosol generating item (2) into the insertion space and preheating is performed. Therefore, the first section can be seen as the section where preheating proceeds after the aerosol generating item (2) is inserted into the insertion space.

[0260] In the first section, the fan module (20) can operate in a first mode. The fan module (20) can form an airflow in the direction where the aerosol generating article (2) is placed. Power can be applied to the fan heater (202) to heat the airflow. As the heated airflow flows toward the aerosol generating article (2), it can assist in preheating. When preheating is complete, the operation of the fan module (20) can be stopped.

[0261] The second section is the period after the aerosol generating device (1) has finished preheating and before the user's first puff begins. When preheating is complete, the aerosol generating item (2) contains high-temperature air and aerosol. If the user proceeds with the puff in this state, they may feel discomfort as they inhale high-temperature aerosol and air during the first puff.

[0262] After preheating is complete, the fan module (20) can be operated in a second mode before the user's first puff. The fan module (20) can form an airflow in the direction where the aerosol generating article (2) is placed. Power is cut off to the fan heater (202) so that the airflow flows toward the aerosol generating article (2) without heating the airflow. High-temperature aerosol and air can be removed before the user's puff.

[0263] The third section is the section where the user puffs. That is, the section where the user inhales the end of the aerosol-generating item (2) corresponds to the third section. In the third section, the fan module (20) can operate in a second mode. The fan module (20) forms an airflow in the same direction as the user's inhalation. Through this, the resistance felt by the user during puffing can be reduced.

[0264] The fourth section is the section after the user's puff has ended. This corresponds to the case where the use of the aerosol generating item (2) is completed by repeating N puffs. In this case, the user may stop smoking or resume smoking by inserting a new aerosol generating item (2).

[0265] The fourth section can be specifically viewed as the section after the user's puffing ends and the aerosol generating item (2) is separated from the insertion space. When the user's smoking ends and the aerosol generating item (2) is separated from the insertion space, the fan module (20) can operate in a third mode. In the third mode, the blade portion (201) can rotate in a first direction or a second direction to form an airflow. Power to the fan heater (202) can be cut off. When the fan module (20) operates in the third mode, cooling and drying inside the aerosol generating device (1) are possible.

[0266] The fifth section corresponds to the section after the aerosol generating device (1) is turned off following the fourth section. When the user's smoking ends and the user removes the aerosol generating item (2) from the insertion space and does not proceed with further smoking, the user can turn off the aerosol generating device (1). After being turned off, the fan module (20) may operate in a third mode for a certain period of time to cool and dry the aerosol generating device (1).

[0267] Some or other embodiments of the present disclosure described above are not exclusive or distinct from one another. Some or other embodiments of the present disclosure described above may be used in combination or combined for their respective configurations or functions.

[0268] For example, this means that configuration A described in a specific embodiment and / or drawing and configuration B described in another embodiment and / or drawing can be combined. That is, even if the combination between configurations is not directly described, it means that combination is possible, except where it is described that combination is impossible.

[0269] The foregoing detailed description should not be interpreted restrictively in all respects and should be considered exemplary. The scope of the invention shall be determined by a reasonable interpretation of the appended claims, and all modifications within the equivalent scope of the invention are included within the scope of the invention.

Claims

1. In an aerosol generating device, A housing having an insertion space into which an aerosol-generating article is inserted; A heater configured to heat the aerosol-generating article inserted into the insertion space; A first fan module disposed in an area adjacent to the above-mentioned insertion space; and It includes a control unit configured to control the first fan module in a plurality of modes based on the state of the aerosol generating device, and The above-mentioned first fan module is an aerosol generating device configured to generate airflow in different directions according to the plurality of modes.

2. In Paragraph 1, The above-mentioned first fan module is, A blade section comprising one or more blades; A motor configured to drive the above blade portion; and A fan heater configured to heat the airflow generated through the blade portion above; An aerosol generating device including 3. In Paragraph 2, An aerosol generating device configured such that the blade portion is configured to rotate in a first direction or in a second direction opposite to the first direction.

4. In Paragraph 1, The above-mentioned first fan module is, An aerosol generating device disposed in an airflow channel inside the housing.

5. In Paragraph 4, The above-mentioned first fan module is, An aerosol generating device positioned at the bottom of the insertion space on the above airflow channel.

6. In Paragraph 1, The housing further includes a second fan module positioned at a different location from the first fan module within the housing. An aerosol generating device, wherein the second fan module is configured to include at least some components of the first fan module.

7. In Paragraph 1, The heater includes a heater body that extends upward from the insertion space and is inserted into the aerosol generating article. An aerosol generating device, wherein the heater body is configured to include at least one opening area.

8. In Paragraph 7, The above at least one opening region comprises an opening region formed at the top of the heater body facing the aerosol generating article, an aerosol generating device.

9. In Paragraph 7, An aerosol generating device, wherein at least one opening region is configured to communicate with the airflow channel.

10. In Paragraph 2, An aerosol generating device, wherein the above-described control unit is configured to drive the blade unit and the fan heater independently.

11. In Paragraph 2, The above control unit is, When the preheating of the aerosol generating device begins, the first fan module is configured to be controlled in a first mode, and The above first mode is, An aerosol generating device configured to rotate the blade portion in a first direction and apply power to the fan heater.

12. In Paragraph 2, The above control unit is, The first fan module is configured to be controlled in a second mode after the preheating of the aerosol generating device is finished or while the puffing of the aerosol generating device is in progress, and The above second mode is, An aerosol generating device configured to rotate the blade portion in a first direction and cut off power to the fan heater.

13. In Paragraph 2, The above control unit is, When it is detected that the aerosol generating item is separated from the insertion space after the puffing of the aerosol generating device is terminated, the first fan module is configured to be controlled in a third mode, and The above third mode is, An aerosol generating device comprising at least a second direction control section for rotating the blade portion in a second direction, and configured to cut off power to the fan heater.

14. In Paragraph 13, The above third mode is, It further includes a first direction control section for rotating the blade portion in a first direction, and An aerosol generating device in which the first direction control section and the second direction control section are configured to operate alternately.

15. A method for controlling an aerosol generating device comprising a housing having an insertion space into which an aerosol generating article is inserted, a heater configured to heat the aerosol generating article inserted into the insertion space, a fan module, and a control unit, wherein The above fan module is placed in an area adjacent to the insertion space, and The above control method is, A step of checking the status of the above-mentioned aerosol generating device, and A control method comprising the step of controlling the operation of the fan module based on the state of the aerosol generating device.

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