Aerosol-generating device

Abstract

Disclosed is an aerosol-generating device. The aerosol-generating device according to the present disclosure may comprise: a housing extending lengthwise; a heater module that is located in the inner space of the housing and provided with a heater extending in the longitudinal direction of the housing; and an extractor surrounding a portion of a side surface of the heater. The heater module may include: a bottom part on which the heater is located; and a pair of inner walls that protrude from the bottom part and are opposite to each other with respect to the heater. The extractor may include: a lower part which faces the bottom part and through which the heater passes; and a pair of side walls which protrude from the lower part, are opposite to each other with respect to the heater, and are alternately arranged with the pair of inner walls, wherein the lower part may be spaced apart from the bottom part and the heater to form a flow path for air.

Description

Aerosol generating device

[0001] The present disclosure relates to an aerosol generating device.

[0002] An aerosol generating device is designed to extract a specific component from a medium or substance through an aerosol. The medium may contain various components. The components contained in the medium may be flavoring substances of various components. For example, the components contained in the medium may include nicotine components, herbal components, and / or coffee components.

[0003] Recently, much research has been conducted on these aerosol-generating devices. In particular, much research has been conducted on the cleaning and maintenance of these devices.

[0004] The present disclosure aims to solve the above-mentioned and other problems.

[0005] Another purpose may be to provide an aerosol generating device that is easy to clean and maintain.

[0006] Another purpose may be to provide a combined structure of a heater module and an extractor that provides an insertion space for an aerosol generating article.

[0007] Another purpose may be to provide an airflow path toward the aerosol generating article.

[0008] Another purpose may be to provide a structure that improves the moldability and strength of the heater module and extractor.

[0009] Another purpose may be to provide a structure that allows easy removal of residual kerosene from the extractor.

[0010] Another purpose may be to provide a structure that prevents the user's fingers holding the heater module from touching the heater (susceptor).

[0011] According to one aspect of the present disclosure for achieving the above-described object, there is provided an aerosol generating device comprising: a housing extending longitudinally; a heater module having a heater extending in the longitudinal direction of the housing and positioned in an internal space of the housing; and an extractor surrounding a portion of a side surface of the heater, wherein the heater module comprises: a bottom part in which the heater is positioned; and a pair of inner walls protruding from the bottom part and facing each other with respect to the heater, wherein the extractor comprises: a lower part facing the bottom part and through which the heater passes; and a pair of side walls protruding from the lower part, facing each other with respect to the heater, and alternately arranged with the pair of inner walls, wherein the lower part is spaced apart from the bottom part and the heater to form an air flow path.

[0012] According to at least one embodiment of the present disclosure, an aerosol generating device that is easy to clean and maintain can be provided.

[0013] According to at least one embodiment of the present disclosure, a combined structure of a heater module and an extractor providing an insertion space for an aerosol generating article can be provided.

[0014] According to at least one embodiment of the present disclosure, an airflow path toward an aerosol generating article can be provided.

[0015] According to at least one embodiment of the present disclosure, a structure can be provided that improves the moldability and strength of a heater module and an extractor.

[0016] According to at least one embodiment of the present disclosure, a structure capable of easily removing residual kerosene from an extractor can be provided.

[0017] According to at least one embodiment of the present disclosure, a structure can be provided that prevents a user's finger holding the heater module from touching the heater (susceptor).

[0018] Further scope of the applicability of the present disclosure will become apparent from the detailed description below. However, since various modifications and variations within the spirit and scope of the present disclosure will be apparent to those skilled in the art, it should be understood that the detailed description and specific examples, such as preferred embodiments of the present disclosure, are given by way of example only.

[0019] Figure 1 is a block diagram of an aerosol generating device according to one embodiment.

[0020] Figure 2 illustrates an aerosol generating device according to one embodiment.

[0021] Figure 3 illustrates an aerosol generating device according to one embodiment.

[0022] Figure 4 is a perspective view of an aerosol generating device according to one embodiment.

[0023] Figures 5 and 6 are exploded perspective views of an aerosol generating device according to one embodiment.

[0024] Figure 7 is a perspective view of a heater module according to one embodiment.

[0025] Figures 8 and 9 are cross-sectional views of a heater module according to one embodiment.

[0026] Fig. 10 is a perspective view of an extractor according to one embodiment.

[0027] Fig. 11 is a cross-sectional view of an extractor according to one embodiment.

[0028] Figure 12 is an exploded perspective view of an extractor and heater module according to one embodiment.

[0029] Figure 13 is a perspective view of an extractor and heater module according to one embodiment.

[0030] Figures 14 and 15 are side views of an extractor and heater module according to one embodiment.

[0031] Figure 16 is a cross-sectional view of an extractor and heater module according to one embodiment.

[0032] Fig. 17 is a cross-sectional view of an extractor and heater module according to one embodiment.

[0033] Figure 18 is an enlarged view of an extractor and heater module according to one embodiment.

[0034] Figure 19 is a cutaway perspective view of an aerosol generating device according to one embodiment.

[0035] Hereinafter, embodiments disclosed in this specification will be described in detail with reference to the attached drawings. Regardless of the drawing numbers, identical or similar components will be assigned the same reference numbers, and redundant descriptions thereof will be omitted. In relation to the description of the drawings, similar drawing numbers may be used for similar or related components.

[0036] The suffixes "module" and "unit" used for components in the following description are assigned or used interchangeably only for the convenience of writing the specification, and do not have distinct meanings or roles in themselves. Meanwhile, the suffixes "module" or "unit" may include units implemented with hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit, for example. A "module" or "unit" may be a component configured integrally, or a minimum unit of the component that performs one or more functions, or a part thereof. For example, a "module" or "unit" may be implemented in the form of an application-specific integrated circuit (ASIC).

[0037] In addition, when describing the embodiments disclosed in this specification, if it is determined that a detailed description of a related known technology may obscure the gist of the embodiments disclosed in this specification, the detailed description thereof will be omitted. In addition, the attached drawings are only intended to facilitate easy understanding of the embodiments disclosed in this specification, and the technical ideas disclosed in this specification are not limited by the attached drawings, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and technical scope of the present disclosure.

[0038] Terms that include ordinal numbers, such as first, second, etc., may be used to describe various components, but the components are not limited by these terms. These terms are used solely to distinguish one component from another.

[0039] When a component is referred to as being "connected" or "connected" to another component, it should be understood that it may be directly connected or connected to that other component, but that there may be other components intervening. Conversely, when a component is referred to as being "directly connected" or "connected" to another component, it should be understood that there are no other components intervening.

[0040] Singular expressions include plural expressions unless the context clearly indicates otherwise.

[0041] Embodiments of the present disclosure may be implemented as software including one or more instructions stored in a storage medium (e.g., memory (17)) readable by a machine (e.g., an aerosol generating device (1)). For example, a processor (e.g., a control unit (12)) of the machine (e.g., an aerosol generating device (1)) may call at least one command among the one or more instructions stored from 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 command. The one or more instructions may include code generated by a compiler or code executable by an interpreter. The machine-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-transitory' simply means that the storage medium is a tangible device and does not contain signals (e.g., electromagnetic waves), and the term does not distinguish between cases where data is stored semi-permanently or temporarily on the storage medium.

[0042] In the present disclosure, the direction of the aerosol generating device (1) can be defined based on the 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).

[0043]

[0044] Fig. 1 is a block diagram of an aerosol generating device (1) according to one embodiment.

[0045] According to one embodiment, the aerosol generating device (1) may include a power source (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 the present embodiment that some of the components illustrated in FIG. 1 may be omitted or new components may be added depending on the design of the aerosol generating device (1).

[0046] 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 movement detection sensor. Meanwhile, the sensor unit (13) may further include various sensors, such as a liquid remaining amount sensor for detecting the liquid remaining amount of the cartridge, and an immersion sensor for detecting immersion of the aerosol generating device (1).

[0047] In one embodiment, the 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 for detecting the temperature of the heater (18, 24), or the heater (18, 24) itself may function as a temperature sensor. As an example, the temperature sensor may be used to measure the impedance to the heater (18). The impedance to 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 the induction coil). Based on the measured current and / or voltage, the impedance to the heater (18) may be calculated. The control unit (12) may estimate the temperature of the heater (18) based on the calculated impedance.

[0048] For example, the temperature sensor may include a resistance 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 resistance 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.

[0049] 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.

[0050] In one embodiment, the temperature sensor can detect the temperature of the power source (11). The temperature sensor can be positioned adjacent to the power source (11). For example, the temperature sensor can be attached to one surface of the power source (11) (e.g., a battery) and / or mounted on one surface of a printed circuit board. For example, the aerosol generating device (1) can include a power protection circuit module (PCM), and the temperature sensor can be positioned adjacent to the power source (11) together with the power protection circuit.

[0051] 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).

[0052] In one embodiment, the puff sensor can detect a user's puff.

[0053] 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 an airflow path through which gas flows. The puff sensor may be arranged in correspondence to the airflow path through which gas flows in the aerosol generating device (1).

[0054] As another example, the puff sensor may include a temperature sensor. When the user puffs, a temporary temperature drop may occur in the airflow path, the space where the aerosol generating product is inserted (hereinafter, referred to as the insertion space), the heater (18, 24), etc. The control unit (12) may detect the user's puff based on a signal corresponding to the temperature of the airflow path, etc. output from the temperature sensor.

[0055] As another example, the puff sensor may include both a pressure sensor and a temperature sensor. In this case, the temperature sensor may measure a 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.

[0056] As another example, the puff sensor may include a capacitance sensor. In the present disclosure, the capacitance sensor may also be referred to as a capacitive sensor or a capacitive sensor. When a user puffs, a temperature change and / or aerosol flow may occur within the insertion space of the aerosol-generating article, and thus, the permittivity within the insertion space may change. The control unit (12) may detect the user's puff based on a signal corresponding to the permittivity within the insertion space, etc., output from the capacitance sensor.

[0057] The puff sensor is not limited to the examples described above and may be implemented with various sensors to detect the user's puff.

[0058] In one embodiment, an insertion detection sensor can detect the insertion and / or removal of an aerosol-generating item. The insertion detection sensor can be installed around the insertion space. Additionally, the insertion detection sensor can include any combination of the examples described above.

[0059] For example, the insertion detection sensor may include a capacitive sensor. The capacitive sensor may include at least one conductor, and the at least one conductor may be positioned adjacent to the insertion space. When an aerosol-generating article is inserted or removed within the insertion space, the permittivity 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 permittivity within the insertion space, etc., output from the capacitive sensor.

[0060] As another example, the insertion detection sensor may include an inductive sensor. The inductive sensor may include at least one coil, and the at least one coil may be disposed adjacent to the insertion space. If the aerosol-generating article (e.g., a wrapper of the aerosol-generating article) includes a conductor, a change in a magnetic field may occur around the current-carrying coil when the aerosol-generating article is inserted into or removed from the insertion space. 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 the alternating current, current value, voltage value, inductance value, impedance value, etc.). Alternatively, the aerosol-generating article (e.g., the medium portion of the aerosol-generating article) may include a susceptor (SUS). Even in this case, a change in the magnetic field around the coil may occur based on the insertion or removal of a susceptor or the like within the insertion space, and the control unit (12) may also detect the insertion and / or removal of the aerosol generating article based on the characteristics of the current of the inductive sensor.

[0061] The insertion detection sensor is not limited to the examples described above, and may be implemented with various sensors (e.g., proximity sensors, etc.) for detecting the insertion and / or removal of an aerosol-generating article. Furthermore, the insertion detection sensor may include any combination of the examples described above. In one embodiment, the insertion detection sensor may include a switch or the like for detecting pressure by an aerosol-generating article.

[0062] In one embodiment, a reuse detection sensor can detect whether an aerosol-generating article has been 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 color change may occur in a portion of a wrapper surrounding the exterior of the aerosol-generating article due to the generated aerosol or heating. The color sensor can output a signal corresponding to an optical characteristic (e.g., a wavelength of light) corresponding to the color of the wrapper based on light reflected from the wrapper. If a change in the color of a portion of the wrapper is detected, the control unit (12) can determine that the aerosol-generating article inserted into the insertion space has already been used.

[0063] According to one embodiment, the over-humidity detection sensor can detect whether an aerosol-generating article is over-humidified. For example, the over-humidity detection sensor can include a capacitive sensor. The capacitive sensor can include at least one conductor disposed adjacent to an insertion space. The control unit (12) can detect whether the aerosol-generating article is over-humidified based on the level of a signal corresponding to a permittivity or the like output from the capacitive sensor. For example, the control unit (12) can check a level range within which the level of the signal is included based on a look-up table, and determine the moisture content of the aerosol-generating article based on the checked level range.

[0064] In one embodiment, the cigarette identification sensor can detect whether an aerosol generating article is genuine and / or detect the type of aerosol generating article.

[0065] For example, the cigarette identification sensor may include an optical sensor for detecting an identification material (or identification mark) located on the outer surface (e.g., wrapper) of an aerosol-generating article. The optical sensor may irradiate light toward the identification material (or identification mark) of the aerosol-generating article and detect the authenticity and / or type of the aerosol-generating article based on the reflected light. For example, the identification material may include a material that emits light in a specific wavelength range based on the irradiated light. The control unit (12) may detect the authenticity and / or type of the aerosol-generating article based on the range of the wavelength.

[0066] As another example, the cigarette identification sensor may include a capacitive sensor. The dielectric constant within the insertion space may vary depending on the type of aerosol-generating product inserted into the insertion space. The control unit (12) may detect the authenticity and / or type of the aerosol-generating product based on a signal corresponding to the dielectric constant within the insertion space output from the capacitive sensor.

[0067] As another example, the cigarette identification sensor may include an inductive sensor. When a conductor is included in the wrapper and / or the interior (e.g., the medium portion) of the aerosol-generating article inserted into the insertion space, the characteristics of the current detected by the inductive sensor (e.g., frequency of the alternating current, current value, voltage value, inductance value, impedance value, etc.) when the aerosol-generating article is inserted into the insertion space may differ depending on the type of the aerosol-generating article inserted into the insertion space. The control unit (12) may detect whether the inserted aerosol-generating article is genuine and / or the type of the inserted aerosol-generating article based on the characteristics of the current output from or detected by the inductive sensor.

[0068] The cigarette identification sensor is not limited to the examples described above, and may be implemented with various sensors to detect the authenticity of an aerosol-generating product and / or the type of aerosol-generating product. Furthermore, the cigarette identification sensor may include any combination of the examples described above.

[0069] In one embodiment, the cartridge detection sensor may 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.

[0070] In one embodiment, the cap detection sensor can detect the mounting and / or removal of the cap. For example, the cap detection sensor can 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 can 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 a housing of the aerosol generating device (1). The cap detection sensor can output a signal corresponding to the mounting or removal when the cap is mounted on or removed from the housing, and the control unit (12) can detect the mounting or removal of the cap based on the signal corresponding to the mounting or removal.

[0071] According to one embodiment, the motion detection sensor can detect the movement of the aerosol generating device (1). The motion detection sensor can be implemented as at least one of an acceleration sensor or a gyro sensor.

[0072] According to one embodiment, the sensor unit (13) may further include, in addition to the aforementioned sensors, at least one of a humidity sensor, a barometric pressure sensor, a magnetic sensor, a position sensor (Global Positioning System, GPS), or a proximity sensor. Since the functions of each sensor can be intuitively inferred by a person skilled in the art from its name, a detailed description thereof may be omitted.

[0073] According to one embodiment, the output unit (14) can output information about the status of the aerosol generating device (1). The output unit (14) can include, but is not limited to, a display, a haptic unit, and / or an audio output unit. For example, the information about the aerosol generating device (1) can include a charging / discharging status of the power supply (11) of the aerosol generating device (1), a preheating status of the heater (18, 24), an insertion / removal status of an aerosol generating article and / or a cartridge, a mounting and / or removal status of a cap, or a status in which the use of the aerosol generating device (1) is restricted (e.g., detection of an abnormal article). The display can visually provide information about the status of the aerosol generating device (1) to the user. For example, the display can include a light emitting diode (LED) light emitting element, a liquid crystal display panel (LCD), an organic light emitting display panel (OLED), etc. The display, if it includes a touch pad, can also be used as an input unit (15). The haptic unit can provide tactile information about the status of the aerosol generating device (1) to the user. For example, the haptic unit can include a vibration motor, a piezoelectric element, an electrical stimulation device, etc. The acoustic output unit can provide audible information about the aerosol generating device (1) to the user. For example, the acoustic output unit can convert an electrical signal into an acoustic signal and output it to the outside.

[0074] According to one embodiment, the power source (11) can supply power for the operation of the aerosol generating device (1). The power source (11) can include one or more batteries. The power source (11) can supply power so that the heaters (18, 24) can be heated. In addition, the power source (11) can also supply power required for the operation of other components included in the aerosol generating device (1), such as the control unit (12), the sensor unit (13), the output unit (14), the input unit (15), the communication unit (16), and the memory (17). The power source (11) can be a rechargeable battery or a disposable battery. For example, the power source (11) can be a lithium polymer (LiPoly) battery, but is not limited thereto. The power source (11) can also be a replaceable type (detachable) battery (hereinafter, referred to as a removable battery). The removable battery may be mounted in the battery compartment provided within the aerosol generating device (1) or may be removed from the battery compartment. The removable battery may be charged by wire and / or wirelessly.

[0075] According to one embodiment, the heater (18, 24) may be powered by the power source (11) to heat the aerosol generating article and / or the medium and / or the aerosol generating material within the cartridge. 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., the solid and / or liquid medium).

[0076] In one embodiment, the heater (18, 24) may be an electrically resistive heater. For example, the electrically resistive heater may include an electrically 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 electrically resistive heater may be implemented as a metal heating wire, a metal heating plate having electrically conductive tracks arranged thereon, a ceramic heating element, etc.

[0077] In one embodiment, the heater (18, 24) may be an induction heating heater. For example, the induction heating 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 may penetrate the heater, and an eddy current may be generated in the susceptor. The susceptor may be heated based on the generation of the eddy current. In one embodiment, the susceptor may be included within the aerosol generating article (e.g., the medium portion). In this case, the susceptor included within the aerosol generating article may be heated by the induction coil.

[0078] 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 the aerosol generating article and / or cartridge.

[0079] According to one embodiment, the input unit (15) can receive information input from a user. For example, the input unit (15) can include a touch panel, a button, a key pad, a dome switch, a jog wheel, a jog switch, etc.

[0080] 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 and data to be processed in the control unit (12). 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.), a random access memory (RAM), a static random access memory (SRAM), a read-only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a programmable read-only memory (PROM), a magnetic memory, a magnetic disk, and an optical disk. For example, the memory (17) may store data on the operation time of the aerosol generating device (1), the maximum number of puffs, the current number of puffs, at least one temperature profile, and a user's smoking pattern.

[0081] According to one embodiment, the communication unit (16) may include at least one component for communicating with another electronic device (e.g., a 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., a LAN or WAN) communication unit, etc.

[0082] 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) can include at least one processor. The control unit (12) can be implemented as an array of a plurality of logic gates, or can be implemented as a combination of a general-purpose MCU (microcontroller unit) (or microprocessor) and a memory storing a program that can be executed in such an MCU. In addition, it will be understood by those skilled in the art to which the present embodiment pertains that the control unit (12) can be implemented as other types of hardware.

[0083] 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., the 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 a power profile stored in the memory (17).

[0084] According to one embodiment, the control unit (12) can control 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., a buck converter, a buck-boost converter, a boost converter, a Zener diode, etc.) that converts power to be supplied to the heater (18, 24), and a DC / AC converter (e.g., an 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, a power conversion circuit may include at least one switching element, such as a bipolar junction transistor (BJT) or a field effect transistor (FET).

[0085] According to one embodiment, the control unit (12) can control the current and / or voltage supplied to the heater (18, 24) by controlling the frequency and / or duty ratio of a current pulse input to at least one switching element of the power conversion circuit (not shown). The duty ratio for the on / off operation of the switching element can correspond to the ratio of the output voltage of the power conversion circuit to the output voltage of the power source (11).

[0086] According to one embodiment, the control unit (12) can control the power supplied to the heater (18, 24) 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 a current pulse having a predetermined frequency and duty ratio to be supplied to the heater (18, 24) 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 a target of control based on a temperature profile. The control unit (12) can control the power supplied to the heater (18, 24) by using the 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.

[0087] According to one embodiment, the control unit (12) can determine a target power that is the target of control based on the power profile. The control unit (12) can also control the power supplied to the heater (18, 24) to correspond to the preset target power over time.

[0088] 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 is generated, a temporary temperature drop may occur in a space where an aerosol generating article is inserted (hereinafter, referred to as the 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 using the PID method. The control unit (12) can detect the user's puff based on the change in the controlled power.

[0089] In 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 to stop supplying power to the heater (18, 24) based on whether the temperature of the heater (18, 24) exceeds a preset limit temperature.

[0090] According to one embodiment, the control unit (12) can control 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)). If the temperature of the power source (11) is higher than a first limit temperature, the control unit (12) can block charging of the power source (11). If the temperature of the power source (11) is higher than a second limit temperature, the control unit (12) can stop using (e.g., discharging) the power stored in the power source (11). 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 voltage and / or current sensing values ​​of the power source (11).

[0091] 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).

[0092] 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 the aerosol-generating article into the insertion space. For example, the control unit (12) can control to supply power to the heater (18, 24) when it is determined that the 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 the aerosol-generating article has been removed from the insertion space using an insertion detection sensor (e.g., sensor unit (13)). The control unit (12) can also determine that the aerosol-generating article has been removed from the insertion space when the temperature of the heater (18, 24) is equal to or higher than a limited temperature or when the temperature change slope of the heater (18, 24) is equal to or higher than a set slope.

[0093] According to one embodiment, the control unit (12) can control the power supply time and / or power supply amount to the heater (18, 24) based on the state of the aerosol generating article. For example, if the control unit (12) determines that the aerosol generating article is in an over-humidity state by using an over-humidity detection sensor (e.g., sensor unit (13)), the control unit (12) can increase the power supply time (e.g., preheating time) to the heater (18, 24).

[0094] In one embodiment, the control unit (12) may control the power supply to the heater (18, 24) based on whether the aerosol generating article has been reused. For example, the control unit (12) may cut off the power supply to the heater (18, 24) if it is determined that the aerosol generating article has been used.

[0095] 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, if the control unit (12) determines that the cartridge is coupled and / or removed using a cartridge detection sensor (e.g., sensor unit (13)), the control unit (12) can control to stop the power supply to the heater (18, 24) or prevent power from being supplied to the heater (18, 24).

[0096] According to one embodiment, the control unit (12) may control the power supply to the heater (18, 24) based on whether the aerosol generating material of the cartridge has been exhausted. For example, if the control unit (12) 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), the control unit (12) may determine that the aerosol generating material of the cartridge has been exhausted. If the control unit (12) determines that the aerosol generating material of the cartridge has been exhausted, the control unit (12) may cut off the power supply to the heater (18, 24).

[0097] According to one embodiment, the control unit (12) may control the power supply to the heater (18, 24) based on whether the cartridge is available for use. For example, the control unit (12) may determine that the cartridge is unusable if the current number of puffs is determined to be greater than or equal to the maximum number of puffs set for the cartridge based on data stored in the memory (17). Alternatively, the control unit (12) may determine that the cartridge is unusable if the total time that the heater (18, 24) has been heated is greater than or equal to the preset maximum time or 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).

[0098] 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 been generated 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 and / or no puffs are detected for a preset period of time. The control unit (12) can also control the power supply to the heater (18, 24) when a puff is detected.

[0099] In one embodiment, the control unit (12) may control the power supply to the heater (18, 24) based on whether the aerosol generating article (or cartridge) is genuine and / or the type thereof. For example, the control unit (12) may detect whether the aerosol generating article is genuine and / or the type thereof using a cigarette identification sensor (e.g., sensor unit (13)). For example, if the control unit (12) detects that the aerosol generating article (or cartridge) is counterfeit, the control unit (12) may cut off the power supply to the heater (18, 24). If the control unit (12) detects that the aerosol generating article (or cartridge) is genuine, the control unit (12) may control (e.g., start) the power supply to the heater (18, 24). As another example, the control unit (12) may control the power supply to the heater (18, 24) differently depending on the type of the aerosol generating article (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 as a first aerosol generating article (or a first cartridge), and can 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 cartridge) is detected as a second aerosol generating article (or a second cartridge).

[0100] 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 visually, tactilely and / or audibly provide information that the aerosol generating device (1) is about to be terminated when the number of puffs counted using the puff sensor (e.g., the sensor unit (13)) reaches a preset number. For example, the control unit (12) can also control the output unit (14) to visually, tactilely and / or audibly provide information about the temperature of the heater (18, 24).

[0101] According to one embodiment, the control unit (12) may store and update a history of events that have occurred in the memory (17) based on the occurrence of a predetermined event. For example, the event may include operations such as detection of insertion of an aerosol generating article, initiation of heating of the aerosol generating article, detection of puff, termination of puff, 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., performed in the aerosol generating device (1). For example, the history of events may include the date and time when the event occurred, log data corresponding to the event, etc. For example, if a given event is detection of insertion of an aerosol generating article, log data corresponding to the event may include data on the sensing value of an insertion detection sensor (e.g., sensor unit (13)). For example, if a given event is detection of overheating of a heater (18, 24), log data corresponding to the event may include data on the temperature of the heater (18, 24), the voltage applied to the heater (18, 24), the current flowing through the heater (18, 24), and the like.

[0102] 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.

[0103] According to one embodiment, the control unit (12) may release restrictions on the use of at least one function (e.g., heating function) of the aerosol generating device (1) when authentication data is received from an external device via a communication link. For example, the authentication data may include the user's birthday, a unique number identifying the user, whether the user has completed authentication, etc.

[0104] According to one embodiment, the control unit (12) can transmit data on the status of the aerosol generating device (1) to an external device via a communication link (e.g., remaining capacity of the power source (11), operating mode, etc.). The transmitted data can be output through a display of the external device, etc.

[0105] According to one embodiment, when a request for location search of the aerosol generating device (1) is received 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 vibration or control the display to output an object corresponding to the location search and the end of the search.

[0106] According to one embodiment, the control unit (12) can perform a firmware update when firmware data is received from an external device via a communication link.

[0107] According to one embodiment, the control unit (12) may transmit data on the sensed values ​​of at least one sensor unit (13) to an external server (not shown) via a communication link, and receive and store a learning model generated by learning the sensed values ​​through machine learning, such as deep learning, from the server. The control unit (12) may perform an operation of determining a user's suction pattern, an operation of generating a temperature profile, etc., using the learning model received from the server.

[0108] Although not shown 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 overdischarging 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.

[0109] The aerosol generating article referred to in the present disclosure may include at least one aerosol generating rod (e.g., a medium portion) and at least one filter rod. The heater (18) may be arranged to correspond to the 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 also include various other substances. For example, the additive may include a flavoring agent and / or an organic acid, and may also include various other substances. 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 cut tobacco, granules, powder, etc. In one embodiment, the additive of the aerosol-generating rod may include an alkaline material. Based on the alkaline material, the nicotine of the tobacco material included in the aerosol-generating rod may have an alkaline 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. In one embodiment, the aerosol-generating rod may include two or more aerosol-generating rods, and the two or more aerosol-generating rods may each include a tobacco material and / or a non-tobacco material.Meanwhile, although not shown, at least one aerosol generating rod and at least one filter rod may be individually and / or integrally wrapped by at least one wrapper. In the present disclosure, the aerosol generating article may also be referred to as a stick.

[0110] The cartridge referred to in the present disclosure may contain an aerosol-generating material having any one of the following states: 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 including a volatile tobacco flavor component, or may be a liquid containing a non-tobacco material. Meanwhile, the cartridge may include a storage unit containing the aerosol-generating material and / or a liquid delivery means impregnating (containing) the aerosol-generating material. For example, the liquid delivery means may include a wick such as cotton fiber, ceramic fiber, glass fiber, or porous ceramic. The cartridge heater (24) may be included in the cartridge in the form of a coil-shaped structure surrounding (or winding) the liquid delivery means, or in a structure contacting one side of the liquid delivery means. Alternatively, the cartridge heater (24) may be included in an aerosol-generating device (1) that is separable from the cartridge.

[0111]

[0112] Fig. 2 illustrates an aerosol generating device (1) according to one embodiment. Fig. 3 illustrates an aerosol generating device (1) according to one embodiment.

[0113] 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 (182, 183) (e.g., the heater (18) of FIG. 1). However, it will be understood by those skilled in the art related to the present embodiment that the components included in the aerosol generating device (1) are not limited to those illustrated 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) illustrated in FIG. 2 may be referred to as an 'internal heating type' aerosol generating device that heats the inside of the aerosol generating article (2). The aerosol generating device (1) illustrated in FIG. 3 may be referred to as an 'external heating type' aerosol generating device that heats the outside of the aerosol generating article (2). In the drawings below, any description overlapping with that of FIG. 1 will be omitted.

[0114] According to one embodiment, the housing (10) may provide a space that is opened upwardly to allow an aerosol-generating article (2) to be inserted. In the present disclosure, the space that is opened upwardly may be referred to as an insertion space. The insertion space may be formed by being recessed toward the interior of the housing (10) to a predetermined depth so that at least a portion of the aerosol-generating article (2) can be inserted. The depth of the insertion space may be longer than the length of a region of the aerosol-generating article (2) containing an aerosol-generating material and / or medium. 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 hold the upper end of the aerosol-generating article (2) exposed to the outside in his / her mouth and inhale the aerosol.

[0115] According to one embodiment, the heater (182, 183) can heat the aerosol generating article (2).

[0116] Referring to FIG. 2, the heater (182) may be an internal heating type heater.

[0117] According to one embodiment, the internally heated heater may extend upwardly in a space (i.e., an insertion space) into which the aerosol generating article (2) is inserted. For example, the internally heated heater 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 internally heated heater may be inserted through the lower portion of the aerosol generating article (2).

[0118] According to one embodiment, the internal heating heater may include an electrical resistance heater and / or an induction heating heater.

[0119] For example, an electric resistance heater may include an electric resistance material on the inside (e.g., an inner hollow portion or inner surface) or the outside (e.g., an outer surface), and may be heated as current flows through the electric resistance material. In this case, the electric resistance heater may be electrically connected to a power source (11), and may directly generate heat by receiving current from the power source (11). In addition, the induction coil (181) may be omitted.

[0120] 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 the internal heating type heater (e.g., is disposed externally to correspond to the length of at least a portion of the heater). In this case, a magnetic flux concentrator or the like may be further included on the outside of the induction coil (181) to increase the efficiency of induction heating. The induction heating type heater includes 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 arranged to be detachable from the housing (10).

[0121] According to one embodiment, the heater (182) may be a multi-heater. The multi-heater may include a first heater and a second heater, and may be inserted into the 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 electrical resistance heater and / or an induction heater, and may be heated sequentially or simultaneously. In this case, the first heater and the second heater may be arranged at positions corresponding to the longitudinal positions of two or more aerosol generating rods, respectively (respectively). Alternatively, the first heater and the second heater may be arranged at positions corresponding to the longitudinal positions of a first portion and a second portion of one aerosol generating rod, respectively. Meanwhile, when 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 disposed at positions corresponding to the longitudinal positions of the first heater and the second heater. Alternatively, the first heater and the second heater may respectively be disposed at positions corresponding to the longitudinal positions of the first part and the second part of one heater (182). In addition, three or more heaters and / or induction coils may be included.

[0122] According to one embodiment, the susceptor may be disposed (or included) within the aerosol generating article (2) (e.g., the medium portion), and the susceptor included within the aerosol generating article (2) may be implemented to generate heat based on a magnetic field generated from an induction coil (181).

[0123] Referring to FIG. 3, the heater (183) may be an external heating type heater.

[0124] In one embodiment, the external heating heater may extend upwardly around the space into which the aerosol generating article (2) is inserted (i.e., the insertion space). For example, the external heating heater may be arranged to surround at least a portion of the insertion space. For example, the external heating heater may have a tubular shape (e.g., a cylindrical shape) having a hollow space therein. The external heating heater may also have a shape having a hollow space on the inside and surrounding the hollow space. In this case, the external heating 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 heater may be arranged to surround at least a portion of the insertion space. The external heating heater may heat the outside of the aerosol generating article (2) inserted into the hollow space.

[0125] According to one embodiment, the external heating heater may include an electric resistance heater and / or an induction heating heater, and a description overlapping with FIG. 2 will be omitted. Meanwhile, in the case of an induction heating heater, the aerosol generating device (1) may include an external heating heater implemented as a tubular susceptor, and may include an induction coil (181) surrounding at least a portion of the external heating heater (e.g., disposed externally to correspond to the length of at least a portion of the heater). In addition, the induction coil (181) may include a fan coil. Meanwhile, when the external heating heater is an electric resistance heater, a separate induction coil (181) may be omitted since heat generation is possible through current flow on a tubular electric resistance heater (e.g., a film heater). Meanwhile, an insulating material may be disposed on the outside of the external heating heater. Through this, heat radiating from the heater (183) in an outward direction and applied to the outside of the housing (10) may be reduced.

[0126] 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 surround at least a portion of the insertion space, respectively. The first heater and the second heater may operate as an electrical resistance heater and / or an induction heating heater, and may be heated sequentially or simultaneously. Meanwhile, when the heater (183) is an induction heating 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 arranged at positions corresponding to the longitudinal positions of the first heater and the second heater, respectively. Alternatively, the first heater and the second heater may be arranged at positions corresponding to the longitudinal positions of the first portion and the second portion of one heater (183), respectively.

[0127] Unlike as shown 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).

[0128] 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 can be introduced from the outside into the housing (10). The air introduced into the housing (10) may be introduced into the aerosol generating article (2) through the lower end (i.e., the 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 oral cavity through the upper end (i.e., the downstream side) of the aerosol generating article (2) together with the introduced air.

[0129]

[0130] Figure 4 is a perspective view of an aerosol generating device according to one embodiment.

[0131] Referring to Fig. 4, the housing (10) of the aerosol generating device (1) can be extended vertically. The power source (11), control unit (12), and sensor unit (13) described above with reference to Figs. 1 to 3 can be arranged in the internal space of the housing (10).

[0132] A cap (20) may be coupled to the top of the housing (10), and a hole (21H) may be formed in the cap (20). The cap (20) may be referred to as an upper cap (20). The hole (21H) may form a part of an opening (OP) into which an aerosol generating article (2) is inserted. A part of the aerosol generating article (2) may be exposed to the outside of the aerosol generating device (1). The aerosol generating article (2) may be referred to as a stick (2). The opening (OP) may be referred to as an insertion space (OP). A cover (20C) may be slidably coupled to the cap (20), and may cover or open the hole (21H).

[0133]

[0134] Figures 5 and 6 are exploded perspective views of an aerosol generating device according to one embodiment.

[0135] Referring to FIG. 5, the cap (20) may include an outer body (21) and outer wings (22). The outer body (21) may form the top of the cap (20), and a hole (21H) may be formed in the outer body (21) to form a portion of an insertion space (OP). The outer wings (22) may be formed at both ends of the outer body (21). The first outer wing (22a) may protrude downward from one end of the outer body (21). The second outer wing (22b) may protrude downward from the other end of the outer body (21). The height at which the second outer wing (22b) protrudes from the outer body (21) may be the same as the height at which the first outer wing (22a) protrudes from the outer body (21).

[0136] The extractor (30) may be disposed between the first outer wing (22a) and the second outer wing (22b) and may protrude downward from the cap (20). The extractor (30) may be detachably coupled to the cap (20). For example, the extractor (30) may be detachably coupled to the cap (20) using a hook. The height at which the extractor (30) protrudes from the outer body (21) may be greater than the height at which the outer wings (22) protrude from the outer body (21). The extractor (30) may be aligned with the hole (21H) of the cap (20) and may form a part of the insertion space (OP). The extractor (30) may be positioned closer to the first outer wing (22a) than to the second outer wing (22b).

[0137] The heater module (40) may be arranged between the first outer wing (22a) and the second outer wing (22b), and may include an inner body (41) and inner wings (42). The inner body (41) may face a lower side of the outer body (21) of the cap (20). A hole (41H) may be formed in the inner body (41), and the extractor (30) may pass through the hole (41H). The inner wings (42) may be formed at both ends of the inner body (41). The first inner wing (42a) may protrude downward from one end of the inner body (41) and may face the first outer wing (22a). The second inner wing (42b) may protrude downward from the other end of the inner body (41) and may face the second outer wing (22b). The height at which the second inner wing (42b) protrudes from the inner body (41) may be the same as the height at which the first inner wing (42a) protrudes from the inner body (41). The heater module (40) may be detachably coupled to the cap (20). For example, the heater module (40) may be detachably coupled to the cap (20) using a hook. For example, the heater module (40) may be detachably coupled to the cap (20) by the magnetic attraction of a magnet. The heater module (40) may be referred to as a holder (40) or a bracket (40).

[0138] The housing (10) may be opened upward. The first groove (10Ga) may be formed on the front surface of the upper portion of the housing (10) and may be positioned corresponding to the first inner wing (42a) and the first outer wing (22a). The second groove (10Gb) may be formed on the rear surface of the upper portion of the housing (10) and may be positioned corresponding to the second inner wing (42b) and the second outer wing (22b).

[0139] The supporter (50) may be arranged between the first groove (10Ga) and the second groove (10Gb) and may occupy an upper portion of the inner space of the housing (10). The supporter (50) may be fixed to the housing (10). The upper surface of the supporter (50), which is a support surface (51), may be positioned lower than the upper end of the housing (10). A pair of walls (52) may protrude upward from long sides of the support surface (51) and may face the inner surface of the housing (10). The pair of walls (52) may be positioned to face long sides of the outer body (21) of the cap (20). The supporter (50) may include a cup (53) into which an extractor (30) and a portion of a heater module (40) are inserted.

[0140]

[0141] Figure 7 is a perspective view of a heater module according to one embodiment.

[0142] Referring to FIG. 7, the hole (41H) of the heater module (40) may be positioned closer to the first inner wing (42a) than to the second inner wing (42b).

[0143] The inner walls (43) may be adjacent to the hole (41H) and may extend downward from the inner body (41). The inner walls (43) may protrude from the boundary of the hole (41H). The height at which the inner walls (43) protrude from the inner body (41) may be greater than the height at which the inner wings (42) protrude from the inner body (41). The inner walls (43) may be opposite to each other with respect to the center of the hole (41H). The first inner wall (43a) may protrude from the inner body (41) in a direction intersecting the inner body (41). The second inner wall (43b) may protrude from the inner body (41) in a direction intersecting the inner body (41) and may be opposite to the first inner wall (43a). The first inner wall (43a) and the second inner wall (43b) can be spaced apart from each other in a first direction, and the first inner wing (42a) and the second inner wing (42b) can be spaced apart from each other in a second direction intersecting the first direction. The first direction can be a left-right direction (i.e., x-axis direction), and the second direction can be a front-back direction (i.e., y-axis direction).

[0144] A first gap (43Ga, gap) may be formed between the first inner wall (43a) and the second inner wall (43b), and the first inner wing (42a) may face the first gap (43Ga). The first inner wing (42a) may cover a portion of the front of the first gap (43Ga) while being spaced apart from the inner wall (43). The first gap (43Ga) may be referred to as a first window (43Ga, window) or a first opening (43Ga).

[0145] A second gap (43Gb) may be formed between the first inner wall (43a) and the second inner wall (43b), and the second inner wing (42b) may face the second gap (43Gb). The second inner wing (42b) may cover a portion of the rear of the second gap (43Gb) while being spaced apart from the inner wall (43). The second gap (43Gb) may be referred to as a second window (43Gb) or a second opening (43Gb).

[0146] The first and second inner wings (42a, 42b) and the first and second gaps (43Ga, 43Gb) may be positioned in a row. For example, the first and second inner wings (42a, 42b) and the second and second gaps (43Ga, 43Gb) may be positioned in a row in the front-back direction (i.e., the y-axis direction). The first and second gaps (43Ga, 43Gb) may be positioned between the first and second inner wings (42a, 42b). The first and second inner wings (42a, 42b) may face each other through the first and second gaps (43Ga, 43Gb).

[0147] The bottom part (44) can be formed at the bottom of the inner walls (43) and can face the hole (41H). The bottom part (44) can intersect the inner walls (43). The bottom part (44) can have a circular shape.

[0148] The boundary of the hole (41H) may include a first portion (41Ha), a second portion (41Hb), a third portion (41Hc), and a fourth portion (41Hd). The first portion (41Ha) and the second portion (41Hb) may be opposite each other with respect to the center of the hole (41H) and may form a part of a circle (ellipse). The third portion (41Hc) and the fourth portion (41Hd) may be opposite each other with respect to the center of the hole (41H) and may form a part of a circle (ellipse). The third and fourth portions (41Hc, 41Hd) may share a center of curvature with the first and second portions (41Ha, 41Hb). The radius of the circle (ellipse) formed by the third and fourth parts (41Hc, 41Hd) may be larger than the radius of the circle (ellipse) formed by the first and second parts (41Ha, 41Hb). The first and second parts (41Ha, 41Hb) may be positioned in the short-axis direction of the hole (41H), and the third and fourth parts (41Hc, 41Hd) may be positioned in the long-axis direction of the hole (41H).

[0149] In other words, the third and fourth portions (41Hc, 41Hd) may be formed by being recessed into the body (41) from the first and second portions (41Ha, 41Hb). The third and fourth portions (41Hc, 41Hd) may be referred to as notches (41Hc, 41Hd, notches) or grooves (41Hc, 41Hd, grooves). The first inner wall (43a) may be formed in the first portion (41Ha), and the second inner wall (43b) may be formed in the second portion (41Hb). The third portion (41Hc) may be positioned between the first inner wing (42a) and the first gap (43Ga), and the groove (notch) formed by the third portion (41Hc) may be formed above the first gap (43Ga). The fourth portion (41Hd) may be positioned between the second inner wing (42b) and the second gap (43Gb), and the groove (notch) formed by the fourth portion (41Hd) may be formed above the second gap (43Gb).

[0150]

[0151] Figures 8 and 9 are cross-sectional views of a heater module according to one embodiment.

[0152] Referring to FIGS. 8 and 9, the boundary of the hole (41H) may form an inclined surface. That is, the first portion (41Ha), the second portion (41Hb), the third portion (41Hc), and the fourth portion (41Hd) may be formed as inclined surfaces. The first to fourth portions (41Ha, 41Hb, 41Hc, 41Hd) may be referred to as chamfer portions (41Ha, 41Hb, 41Hc, 41Hd).

[0153] The third portion (41Hc) can form a certain angle (theta c) with respect to a vertical line (V) passing through the center of the hole (41H). The angle (theta c) can be an acute angle. The angle (theta c) can be about 10 degrees. The fourth portion (41Hd) can form a certain angle (theta d) with respect to a vertical line (V) passing through the center of the hole (41H). The angle (theta d) can be equal to the angle (theta c). The angle (theta d) can be about 10 degrees.

[0154] The first portion (41Ha) can form a certain angle (theta a) with respect to a vertical line (V) passing through the center of the hole (41H). The angle (theta a) can be equal to or greater than the angle (theta c). The second portion (41Hb) can form a certain angle (theta b) with respect to a vertical line (V) passing through the center of the hole (41H). The angle (theta b) can be equal to or greater than the angle (theta c).

[0155] The inner wall (43) may form an acute angle with respect to a vertical line (V) passing through the center of the hole (41H). The angle between the vertical line (V) and the inner wall (43) may be smaller than angles (theta c, theta d). The first angle (theta 1) between the first inner wall (43a) and the vertical line (V) may be about 3 degrees. The second angle (theta 2) between the second inner wall (43b) and the vertical line (V) may be about 3 degrees. The inner wall (43) may be curved in the circumferential direction of the hole (41H). The first inner wall (43a) and the second inner wall (43b) may be symmetrical with respect to the vertical line (V). Accordingly, the mold yield of the heater module (40) may be improved, and the mold extraction of the heater module (40) may be facilitated.

[0156] The heater (18) may be placed inside the inner walls (43) and mounted on the bottom part (44). The heater (18) may include a fixing portion (182a) fixed to the bottom part (44) and a protrusion (182b) protruding from the fixing portion (182a). The protrusion (182b) may extend vertically and may have a rod or needle shape. The protrusion (182b) may be positioned on a vertical line (V) passing through the center of the hole (41H). The height of the protrusion (182b) may be smaller than the height of the inner wall (43). The protrusion (182b) may be referred to as a susceptor (182b).

[0157] The protrusion (182b) can be exposed to the outside through gaps (43Ga, 43Gp, gaps) between the inner walls (43). The first inner wing (42a) can cover a portion of the front of the first gap (43Ga), and the second inner wing (42b) can cover a portion of the rear of the second gap (43Gb). Accordingly, the user can hold the first inner wing (42a) and the second inner wing (42b) with their fingers, and the first inner wing (42a) and the second inner wing (42b) can prevent the user's fingers from touching the protrusion (182b).

[0158]

[0159] Fig. 10 is a perspective view of an extractor according to one embodiment.

[0160] Referring to FIG. 10, the extractor (30) may include an upper part (31), side walls (33), and a lower part (34).

[0161] The upper part (31) may have an overall annular band shape. The upper part (31) may have a circular shape.

[0162] The side walls (33) may extend downward from the upper part (31). The side walls (33) may protrude from the lower side of the upper part (31). The first side wall (33a) and the second side wall (33b) may protrude from the upper part (31) and may be spaced apart from each other in the circumferential direction of the upper part (31). The first side wall (33a) and the second side wall (33b) may be opposite each other with respect to the center of the upper part (31). The first side wall (33a) and the second side wall (33b) may be spaced apart from each other in a second direction. The second direction may be the front-rear direction (i.e., the y-axis direction).

[0163] A first gap (33Ga, gap) may be formed between the first side wall (33a) and the second side wall (33b). The first gap (33Ga) may be referred to as a first window (33Ga, window) or a first opening (33Ga).

[0164] A second gap (33Gb, gap) may be formed between the first side wall (33a) and the second side wall (33b). The second gap (33Gb) may be referred to as a second window (33Gb, window) or a second opening (33Gb).

[0165] The lower part (34) may be formed at the lower end of the side walls (33) and may face the center hole (31H) of the upper part (31). The lower part (34) may intersect the side walls (33). The lower part (34) may have a ring shape, and a hole (34H) may be formed in the lower part (34). The diameter of the hole (34H) may be smaller than the diameter of the center hole (31H). The hole (34H) may be aligned with the center hole (31H).

[0166] Foreign substances such as residual glue (T) of the aerosol generating article (2) may be located on the lower part (34). In order to easily remove the residual glue (T) from the extractor (30), the gaps (33Ga, 33Gb) may have a width greater than a certain value. For example, the width of the lower part of the gap (33Ga, 33Gb) where the residual glue (T) is located may be about 7 mm or more. The width of the gaps (33Ga, 33Gb) may gradually decrease from the lower part (34) toward the upper part (31). In other words, the width (Wa) of the first side wall (33a) may increase as it approaches the upper end of the first side wall (33a), and the width (Wb) of the second side wall (33b) may also increase as it approaches the upper end of the second side wall (33b). Accordingly, not only can the residual glue (T) be easily removed from the extractor (30), but the extractor (30) can also have a strength above a certain level.

[0167]

[0168] Fig. 11 is a cross-sectional view of an extractor according to one embodiment.

[0169] Referring to Fig. 11, a hole (34H) may be formed at the center of the lower part (34). The first side wall (33a) may form a certain angle (theta 3a) with respect to a vertical line (W) passing through the center of the hole (34H). The angle (theta 3a) may be an acute angle. The angle (theta 3a) may be about 5 degrees. The second side wall (33b) may form a certain angle (theta 3b) with respect to the vertical line (W) at the center of the hole (34H). The angle (theta 3b) may be substantially equal to the angle (theta 3a). The angle (theta 3b) may be about 5 degrees. The first side wall (33a) and the second side wall (33b) may be symmetrical with respect to the vertical line (W). Accordingly, the mold yield of the extractor (30) can be improved, and the mold extraction of the extractor (30) can be facilitated.

[0170] The portion (33r) where the side wall (33) and the lower part (34) meet can be formed round. The radius of curvature (R3) of the portion (33r) can be about 0.3 mm.

[0171] The side surface of the upper part (31) may be formed in several stages. The first part (311) may form the lower part of the upper part (31), and the side walls (33) may be connected to the first part (311). The outer surface of the first part (311) may form an inclined surface, and the width of the first part (311) may increase as it goes upward. The first part (311) may form a gradient of about 5 degrees. The second part (312) may be connected to the first part (311). A plurality of recessed portions may be formed on the outer surface of the second part (312). The third part (313) may be connected to the second part (312) and may form the upper part of the upper part (31). The fourth part (314) and the fifth part (315) may protrude from the outer surface of the third part (313) and may be spaced apart from each other in the circumferential direction of the third part (313). The fourth part (314) may be positioned corresponding to the first side wall (33a), and the fifth part (315) may be positioned corresponding to the second side wall (33b).

[0172]

[0173] Figure 12 is an exploded perspective view of an extractor and heater module according to one embodiment.

[0174] Referring to Fig. 12, the first side wall (33a) may be positioned corresponding to the third portion (41Hc) of the hole (41H), and the second side wall (33b) may be positioned corresponding to the fourth portion (41Hd) of the hole (41H). The distance (D4) between the third portion (41Hc) and the fourth portion (41Hd) may be greater than the distance (D3) between the lower end of the first side wall (33a) and the lower end of the second side wall (33b). The width (W3) of the lower part (34) may be smaller than the distance between the first portion (41Ha) and the second portion (41Hb).

[0175] Accordingly, the extractor (30) can be inserted into the interior of the heater module (40) through the hole (41H) of the heater module (40).

[0176]

[0177] Fig. 13 is a perspective view of an extractor and a heater module according to one embodiment. Figs. 14 and 15 are side views of an extractor and a heater module according to one embodiment.

[0178] Referring to FIGS. 13 to 15, the first side wall (33a) may be positioned in a first gap (43Ga, see FIG. 7) between the first inner wall (43a) and the second inner wall (43b). The second side wall (33b) may be positioned in a second gap (43Gb, see FIG. 7) between the first inner wall (43a) and the second inner wall (43b).

[0179] A first gap (43Ga) may be formed between a first side (43aa) of a first inner wall (43a) facing the first side wall (33a) and a first side (43ba) of a second inner wall (43b) facing the first side wall (33a). The first side (33aa) of the first side wall (33a) may extend along the first side (43aa) of the first inner wall (43a) and may contact the first side (43aa). The first sides (33aa) and the first sides (43aa) may be oblique lines inclined at an acute angle (theta 4a) with respect to a vertical line (V, W, which may be a longitudinal axis of the heater (18). The second side (33ab) of the first side wall (33a) can extend along the first side (43ba) of the second inner wall (43b) and can contact the first side (43ba). The second side (33ab) and the first side (43ba) can be diagonal lines inclined at an acute angle (theta 4b) with respect to the vertical line (V, W). The angles (theta 4a, theta 4b) can be equal to each other. Since the sides (33aa, 43aa; 33ab, 43ab) are formed diagonally, the clearance between the sides can be minimized, and the mold removal of the extractor (30) and the heater module (40) can be facilitated.

[0180] The width of the first gap (43Ga) may be the distance between the first side (43aa) of the first inner wall (43a) and the first side (43ba) of the second inner wall (43b). The width of the first gap (43Ga) may become smaller as it approaches the bottom part (44) in the inner body (41). The width of the first side wall (33a) may be the distance between the first side (33aa) and the second side (33ab) of the first side wall (33a). The width of the first side wall (33a) may become smaller as it approaches the lower part (34) in the upper part (31). The minimum width (W3a) of the first side wall (33a) may be greater than the minimum width (W4a) of the first gap (43Ga).

[0181] Accordingly, the first side wall (33a) can be inserted up to a portion of the first gap (43Ga) that forms a width equal to the minimum width (W3a). That is, the inner walls (43a, 43b) can limit the lowering of the first side wall (33a), and the lower end of the first side wall (33a) can be spaced upward from the lower end of the first gap (43Ga).

[0182] The second gap (43Gb) may be formed between the second side (43ab) of the first inner wall (43a) facing the second side wall (33b) and the second side (43bb) of the second inner wall (43b) facing the second side wall (33b). The first side (33ba) of the second side wall (33b) may extend along the second side (43ab) of the first inner wall (43a) and may contact the second side (43ab). The first side (33ba) and the second side (43ab) may be diagonally inclined at an acute angle (theta 4c) with respect to a vertical line (V, W, which may be a longitudinal axis of the heater (18). The second side (33bb) of the second side wall (33b) can extend along the second side (43bb) of the second inner wall (43b) and can contact the second side (43bb). The second sides (33bb) and the second sides (43bb) can be diagonal lines inclined at an acute angle (theta 4d) with respect to the vertical lines (V, W). The angles (theta 4c, theta 4d) can be equal to each other. Since the sides (33ba, 43ab; 33bb, 43bb) are formed diagonally, the clearance between the sides can be minimized, and the mold removal of the extractor (30) and the heater module (40) can be facilitated.

[0183] The width of the second gap (43Gb) may be the distance between the second side (43ab) of the first inner wall (43a) and the second side (43bb) of the second inner wall (43b). The width of the second gap (43Gb) may become smaller as it approaches the bottom part (44) from the inner body (41). The width of the second side wall (33b) may be the distance between the first side (33ba) and the second side (33bb) of the second side wall (33b). The width of the second side wall (33b) may become smaller as it approaches the lower part (34) from the upper part (31). The minimum width (W3b) of the second side wall (33b) may be greater than the minimum width (W4b) of the second gap (43Gb).

[0184] Accordingly, the second side wall (33b) can be inserted up to a portion of the second gap (43Gb) that forms a width equal to the minimum width (W3b). That is, the inner walls (43a, 43b) can limit the lowering of the second side wall (33b), and the lower end of the second side wall (33b) can be spaced upward from the lower end of the second gap (43Gb).

[0185]

[0186] Figure 16 is a cross-sectional view of an extractor and heater module according to one embodiment.

[0187] Referring to Fig. 16, the side walls (33) of the extractor (30) and the inner walls (43) of the heater module (40) may be arranged alternately. In the circumferential direction of the heater (18), the first inner wall (43a) and the second inner wall (43b) may be arranged alternately with the first side wall (33a) and the second side wall (33b). The first inner wall (43a) and the second inner wall (43b) may be spaced apart from and opposite to each other in a first direction (DR1), and the first side wall (33a) and the second side wall (33b) may be spaced apart from and opposite to each other in a second direction (DR2) intersecting the first direction (DR1). The first direction (DR1) may be the left-right direction (i.e., the x-axis direction), and the second direction (DR2) may be the front-back direction (i.e., the y-axis direction).

[0188] Accordingly, the side walls (33) and inner walls (43) can be arranged in a cross shape to surround the side of the heater (18).

[0189] The first inner wall (43a) and the second inner wall (43b) may be convexly curved in the radial direction of the heater (18). The inner surface of the first side wall (33a) and the inner surface of the second side wall (33b) may be concave in the radial direction of the heater (18). The side of the hollow cylinder may be divided into inner walls (43) and side walls (33).

[0190]

[0191] Fig. 17 is a cross-sectional view of an extractor and a heater module according to one embodiment. Fig. 18 is an enlarged view of an extractor and a heater module according to one embodiment.

[0192] Referring to FIGS. 17 and 18, the upper part (31) of the extractor (30) may protrude upward from the inner body (41) of the heater module (40). The first part (311) of the upper part (31) may be adjacent to the first and second parts (41Ha, 41Hb, see FIG. 12) of the hole (41H) of the heater module (40). The first part (311) may be positioned on the first and second parts (41Ha, 41Hb, see FIG. 12).

[0193] The protrusion (182b) of the heater (18) can penetrate the hole (34H) of the lower part (34) of the extractor (30). The width (W10) of the hole (34H) can be larger than the width (W11) of the protrusion (182b). That is, the boundary surface of the hole (34H) can be spaced apart from the outer surface of the protrusion (182b), and an air flow path (P13) can be formed between the hole (34H) and the protrusion (182B).

[0194] The lower part (34) of the extractor (30) may be spaced upward from the bottom part (44) of the heater module (40). An air passage (P12) may be formed between the lower part (34) and the bottom part (44). The first gap (43Ga) and the second gap (43Gb) may form a part of the air passage (P12).

[0195] The first side wall (33a) can be spaced apart from the third part (41Hc) of the hole (41H) of the heater module (40), and an air flow path (P10a) can be formed between the third part (41Hc) and the first side wall (33a).

[0196] The second side wall (33b) can be spaced apart from the fourth part (41Hd) of the hole (41H) of the heater module (40), and an air flow path (P10b) can be formed between the fourth part (41Hd) and the second side wall (33b).

[0197]

[0198] Figure 19 is a cutaway perspective view of an aerosol generating device according to one embodiment.

[0199] Referring to Fig. 19, a portion of the insertion space (OP) of the aerosol generating device (1) may be formed by holes (21H, 31H). The inner walls (43), the side walls (33) and the lower part (34) may form the remainder of the insertion space (OP). An aerosol generating article (2) may be inserted into the insertion space (OP), and a heater (18) may be inserted into the lower portion of the aerosol generating article (2, see Fig. 4) inserted into the insertion space (OP). The heater (18) may heat the aerosol generating article (2). For example, an induction coil (181, see Fig. 2) may be disposed on a side surface of the cup (53) described above and below, and the heater (18) may include a susceptor that is heated by a magnetic field generated by the induction coil (181). Alternatively, the heater (18) may be electrically connected to a power source (11, see FIG. 2) and may be heated by current supplied from the power source (11).

[0200] The cup (53) of the supporter (50) may be opened upward and surround the side surfaces of the inner walls (43) and the side walls (33). The inner walls (43) and the side walls (33) may be spaced apart from the inner surface of the cup (53). An air flow path (P11) may be formed between the walls (43, 33) and the inner surface of the cup (53). Accordingly, air may sequentially pass through the flow paths (P10, P11, P12, P13) and then be supplied to the aerosol generating article (2) inserted into the heater (18) (see dotted arrows in FIG. 19).

[0201] Accordingly, the user can hold the aerosol generating article (2) heated by the heater (18) in his / her mouth and inhale air. The aerosol generating article (2) may be referred to as a stick (2).

[0202] Meanwhile, the heater module (40) can be detachably coupled to the supporter (50). For example, the heater module (40) can be detachably coupled to the supporter (50) through a hook coupling. The first coupling portion (46a) can protrude from the lower end of the first inner wing (42a) and can be provided with a first catching groove (45a) (see FIG. 5). The second coupling portion (46b) can protrude from the lower end of the second inner wing (42b) and can be provided with a second catching groove (45b) (see FIG. 5). The first coupling portion (46a) can be inserted into the gap (56a) between the supporter (50) and the housing (10), and the first catching groove (45a) of the first coupling portion (46a) can be caught by the first hook (55a) protruding from the housing (10). The second connecting portion (46b) can be inserted into the gap (56b) between the supporter (50) and the housing (10), and the second hooking groove (45b) of the second connecting portion (46b) can be hooked to the second hook (55b) protruding from the housing (10).

[0203] In addition, the cap (20) can be detachably coupled to the supporter (50). For example, the cap (20) can be detachably coupled to the supporter (50) through a hook connection. The first wall (52a) can protrude upward from one side of the support surface (51) of the supporter (50) and can face one side (left side) of the body (21) (see FIGS. 5 and 6). The first hooking groove (52ah) can be formed in the first wall (52a), and the first hook (21a) protruding from the one side of the body (21) can be caught in the first hooking groove (52ah) (see FIGS. 5 and 6). The second wall (52b) can protrude upward from the other side of the support surface (51) of the supporter (50) and can face the other side (right side) of the body (21) (see FIGS. 5 and 6). A second hooking groove (52bh) can be formed in the second wall (52b), and a second hook (21b) protruding from the other side of the body (21) can be hooked to the second hooking groove (52bh) (see FIGS. 5 and 6).

[0204] The user can separate the extractor (30) and the cap (20) from the heater module (40) while the heater module (40) is coupled to the supporter (50). At this time, foreign substances such as residual residue (T, see FIG. 10) of the aerosol generating article (2) can be removed by the lower part (34) of the extractor (30), and the area around the heater (18) can be cleaned. Furthermore, the user can also separate the heater module (40) from the supporter (50) to clean, repair, or replace the heater module (40).

[0205]

[0206] Referring to FIGS. 1 to 19, an aerosol generating device (1) according to one aspect of the present disclosure may include: a housing (10) that is elongated; a heater module (40) having a heater (18) extending in the longitudinal direction of the housing (10) and positioned in an internal space of the housing (10); and an extractor (30) that surrounds a portion of a side of the heater (18), wherein the heater module (40) may include: a bottom part (44) in which the heater (18) is positioned; and a pair of inner walls (43) protruding from the bottom part (44) and facing each other with respect to the heater (18), and wherein the extractor (30) may include: a lower part (34) facing the bottom part (44) and through which the heater (18) passes; And, it may include a pair of side walls (33) that protrude from the lower part (34), face each other with respect to the heater (18), and are alternately arranged with the pair of inner walls (43), and the lower part (34) may be spaced apart from the bottom part (44) and the heater (18) to form an air flow path (P12, P13).

[0207] Additionally, according to another aspect of the present disclosure, the pair of inner walls (43) may be spaced apart from each other in a first direction (DR1), and the pair of side walls (33) may be spaced apart from each other in a second direction (DR2) intersecting the first direction (DR1).

[0208] Additionally, according to another aspect of the present disclosure, the lower part (34) may include a hole (34H) through which the heater (18) passes, and the boundary of the hole (34H) may be spaced apart from the outer surface of the heater (18).

[0209] In addition, according to another aspect of the present disclosure, the heater module (40) may further include: an inner body (41) having a hole (41H) through which the pair of side walls (33) pass, and the pair of inner walls (43) may protrude from the inner body (41) adjacent to the hole (41H) and connect the bottom part (44) and the inner body (41), and a boundary of the hole (41H) may be spaced apart from the pair of side walls (33) to form an air flow path (P10a, P10b).

[0210] In addition, according to another aspect of the present disclosure, the heater module (40) may further include: a groove (41Hc, 41Hd) that is sunken from the boundary of the hole (41H) of the inner body (41), and the groove (41Hc, 41Hd) may be spaced apart from the side wall (33) to form an air flow path (P10a, P10b).

[0211] In addition, according to another aspect of the present disclosure, the boundary of the hole (41H) of the inner body (41) may include: a first portion (41Ha) and a second portion (41Hb) which are opposite to each other and form a part of a circle; and a third portion (41Hc) and a fourth portion (41Hd) which are opposite to each other and are alternately positioned with the first and second portions (41Ha, 41Hb) and form a part of a circle, and a radius of the circle formed by the third and fourth portions (41Hc, 41Hd) may be larger than a radius of the circle formed by the first and second portions (41Ha, 41Hb).

[0212] Additionally, according to another aspect of the present disclosure, the third and fourth portions (41Hc, 41Hd) may be formed as inclined surfaces forming an acute angle (theta c, theta d) with respect to the longitudinal axis of the heater (18).

[0213] In addition, according to another aspect of the present disclosure, the aerosol generating device (1) may further include: a cup (53) surrounding the pair of inner walls (43) and the pair of side walls (33), and an inner surface of the cup (53) may be spaced apart from the pair of side walls (33) to form an air flow path (P11).

[0214] In addition, according to another aspect of the present disclosure, one side of the side wall (33) can be in contact with one side of the inner wall (43) and form a diagonal line.

[0215] Additionally, according to another aspect of the present disclosure, the inner wall (43) can form an acute angle (theta 1, theta 2) with respect to the longitudinal axis of the heater (18).

[0216] Additionally, according to another aspect of the present disclosure, each of the pair of side walls (33) may have a width that increases as it moves away from the lower part (34).

[0217] In addition, according to another aspect of the present disclosure, the heater module (40) comprises: a first gap (43Ga) formed between the pair of inner walls (43) and in which one (33a) of the pair of side walls (33a, 33b) is positioned; a second gap (43Gb) formed between the pair of inner walls (43) and in which the other (33b) of the pair of side walls (33a, 33b) is positioned; an inner body (41) having a hole (41H) through which the pair of side walls (33a, 33b) passes; a first inner wing (42a) bent from one end of the inner body (41) and covering a part of the first gap (43Ga); In addition, it may further include a second inner wing (42b) that is bent from the other end of the inner body (41) and covers a part of the second gap (43Gb).

[0218] In addition, according to another aspect of the present disclosure, the aerosol generating device (1) may further include: a supporter (50) fixed to the housing (10) and having a cup (53) into which the heater module (40) and the extractor (30) are inserted, and the heater module (40) may further include: a coupling portion (46a) protruding from the first inner wing (42a) and hook-coupled to the supporter (50).

[0219]

[0220] Any or all of the embodiments of the present disclosure described above are not mutually exclusive or distinct. Any or all of the embodiments of the present disclosure described above may have their respective components or functions combined or used together.

[0221] For example, it means that configuration A described in a particular embodiment and / or drawing can be combined with configuration B described in another embodiment and / or drawing. That is, even if the combination between the configurations is not directly described, it means that the combination is possible, except in cases where the combination is described as impossible.

[0222] The above detailed description should not be construed as limiting in any respect and should be considered illustrative only. The scope of the present invention should be determined by a reasonable interpretation of the appended claims, and all modifications within the equivalent scope of the present invention are intended to be included within the scope of the present invention.

Claims

1. Long extension housing; A heater module having a heater extending in the longitudinal direction of the housing and positioned in the internal space of the housing; and, comprising an extractor surrounding a portion of the side of the above heater; The above heater module: The bottom part where the above heater is located; and, A pair of inner walls protruding from the bottom part and facing each other with respect to the heater, The above extractor: A lower part facing the bottom part and through which the heater penetrates; and A pair of side walls protruding from the lower part, facing each other with respect to the heater, and arranged alternately with the pair of inner walls, The above lower part is, An aerosol generating device that forms an air path separated from the above bottom part and the above heater.

2. In paragraph 1, The above pair of inner walls, are spaced apart from each other in the first direction, The above pair of side walls, An aerosol generating device spaced apart from each other in a second direction intersecting the first direction.

3. In paragraph 1, The above lower part is, including a hole through which the heater penetrates, The boundaries of the above hall are, An aerosol generating device spaced apart from the outer surface of the above heater.

4. In paragraph 1, The above heater module: Further comprising an inner body having a hole through which the pair of side walls pass, The above pair of inner walls, Protruding from the inner body adjacent to the hole, connecting the bottom part and the inner body, The boundaries of the above hall are, An aerosol generating device that forms an air flow path separated from the above pair of side walls.

5. In paragraph 4, The above heater module: Further comprising a groove that is sunken from the boundary of the hole of the inner body, The above groove is, An aerosol generating device that forms an air flow path separated from the above side wall.

6. In paragraph 4, The above boundary of the above hole of the above inner body is: First and second parts opposite to each other and forming part of a circle; and, comprising a third part and a fourth part opposite to each other, positioned alternately with the first and second parts, and forming a part of a circle; The radius of the circle formed by the third and fourth parts is An aerosol generating device having a radius greater than the radius of the circle formed by the first and second parts.

7. In paragraph 6, The third and fourth parts above, An aerosol generating device formed by inclined surfaces forming an acute angle with respect to the longitudinal axis of the heater.

8. In paragraph 4, Further comprising a cup surrounding the pair of inner walls and the pair of side walls, The inner side of the above cup is, An aerosol generating device that forms an air flow path separated from the above pair of side walls.

9. In paragraph 1, One side of the above side wall is, An aerosol generating device that contacts one side of the inner wall and forms a diagonal line.

10. In paragraph 9, The above inner wall is, An aerosol generating device forming an acute angle with respect to the longitudinal axis of the above heater.

11. In paragraph 1, Each of the above pair of side walls, An aerosol generating device having a width that increases as it moves away from the lower part.

12. In paragraph 1, The above heater module: An inner body having a hole through which the pair of side walls pass; A first inner wing bent from one end of the inner body; and, Further comprising a second inner wing bent from the other end of the inner body, A first gap is defined between the pair of inner walls, wherein one of the pair of side walls is located, A second gap is defined between the pair of inner walls, wherein the other one of the pair of side walls is positioned, An aerosol generating device wherein the first and second gaps and the first and second inner wings are placed in a row.

13. In paragraph 12, It further includes a supporter fixed to the housing, having a cup into which the heater module and the extractor are inserted, The above heater module: An aerosol generating device further comprising a connecting portion protruding from the first inner wing and hook-connected to the supporter.

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