Aerosol generating device including level sensor

Abstract

This aerosol generating device may comprise: a chamber that stores a liquid aerosol-generating material; a main body including a partition wall facing the chamber; a conductive member provided on one surface of the chamber facing the partition wall; and a level sensor that detects the amount of the liquid aerosol-generating material stored in the chamber, wherein the level sensor may detect the amount of the liquid aerosol-generating material by applying a current to the conductive member and measuring a voltage value that varies according to the capacity of the liquid aerosol-generating material.

Description

Aerosol generating device including a level sensor

[0001] Various embodiments disclosed in this document relate to an aerosol generating device including a level sensor.

[0002] Recently, there has been a growing demand for alternative products that overcome the shortcomings of traditional cigarettes. For example, demand is growing for devices that generate aerosol by electrically heating a cigarette stick (e.g., heat-not-burn electronic cigarettes). Accordingly, research is actively underway on cigarette sticks (or aerosol-generating devices) and electrically heated aerosol-generating devices into which the cigarette stick is inserted.

[0003] The background technology described above is something that the inventor possessed or acquired in the process of deriving the disclosure of the present application, and cannot necessarily be said to be a publicly known technology disclosed to the general public prior to the present application.

[0004] The aerosol generating device receives a liquid aerosol generating substance in a chamber and atomizes the liquid aerosol generating substance. As the liquid aerosol generating substance is consumed, the aerosol generating device can detect the amount of liquid aerosol generating substance remaining in the chamber and display changes in the volume of the liquid aerosol generating substance.

[0005] However, the dielectric constant of the liquid aerosol generating substance may change depending on various factors such as the raw material, concentration, and composition ratio of the liquid aerosol generating substance, and accordingly, errors may occur in the detection results of the residual amount of the liquid aerosol generating substance.

[0006] According to one embodiment, an aerosol generating device may include: a chamber for storing a liquid aerosol generating substance; a body including a partition wall facing the chamber; a conductive member provided on one surface of the chamber facing the partition wall; and a level sensor for detecting the amount of the liquid aerosol generating substance stored in the chamber. In one embodiment, the level sensor may detect the amount of the liquid aerosol generating substance by applying a current to the conductive member and measuring a voltage value that varies depending on the capacity of the liquid aerosol generating substance.

[0007] In one embodiment, the level sensor may include an electrode unit disposed opposite the conductive member and configured to apply current to the conductive member.

[0008] In one embodiment, the conductive member may be formed in the shape of a bar extending along the direction in which the chamber extends.

[0009] In one embodiment, the conductive member may include a first conductive region and a second conductive region that are spaced apart from each other.

[0010] In one embodiment, the first conductive region and the second conductive region may be arranged parallel to each other.

[0011] In one embodiment, the first conductive region and the second conductive region may have the same shape.

[0012] In one embodiment, the aerosol generating device may further include at least one processor that receives a detection result from the level sensor and controls the operation of the aerosol generating device. In one embodiment, the at least one processor may receive a detection result for each of the first conductive region and the second conductive region and correct the detection result of the level sensor.

[0013] In one embodiment, the at least one processor may correct the detection result of the level sensor by an average value of the detection results for each of the first conductive region and the second conductive region.

[0014] In one embodiment, the conductive member may further include an insulating region provided between the first conductive region and the second conductive region.

[0015] In one embodiment, the conductive member may be formed in a shape that is bent and extended at least once along the direction in which the chamber extends.

[0016] In one embodiment, the conductive member may be coupled to the chamber in a structure that protrudes from one side of the chamber.

[0017] In one embodiment, the chamber may include a groove region formed on one surface to which the conductive member is coupled to accommodate the conductive member.

[0018] In one embodiment, the conductive member may be positioned within the groove region such that one side of the chamber and the conductive member form a flat surface.

[0019] In one embodiment, the chamber may be made of a conductive resin, a conductive polymer material, or a conductive organic chemical.

[0020] In one embodiment, the chamber may be formed of a conductive material having relatively lower conductivity than the conductive member.

[0021] An aerosol generating device according to one embodiment of the present document can improve the detection accuracy of a level sensor that detects the volume of a liquid aerosol generating substance inside a chamber by a conductive member provided on the outer surface of the chamber.

[0022] Alternatively, the aerosol generating device according to one embodiment can compensate for the detection results of the level sensor by using a plurality of conductive members, and the plurality of conductive members can be arranged in various ways.

[0023] However, the effects of the aerosol generating device according to one embodiment are not limited to those mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description below.

[0024] The following drawings attached to this specification illustrate a preferred embodiment of the present invention and, together with the detailed description of the invention, serve to further understand the technical idea of ​​the present invention, and therefore, the present invention should not be interpreted as being limited to matters described in such drawings.

[0025] Figure 1 is a block diagram of an aerosol generating device according to one embodiment.

[0026] Figure 2 is a perspective view of an aerosol generating device according to one embodiment.

[0027] Figure 3 is an exploded perspective view of an aerosol generating device according to one embodiment.

[0028] Figure 4 is an exploded perspective view of a cartridge of an aerosol generating device according to one embodiment.

[0029] Figure 5 is a cross-sectional view of a cartridge of an aerosol generating device according to one embodiment.

[0030] Figure 6 is a partial cross-sectional view of an aerosol generating device according to one embodiment.

[0031] FIG. 7A is a perspective view of a cartridge of an aerosol generating device according to one embodiment.

[0032] FIG. 7b is a perspective view of a cartridge of an aerosol generating device according to one embodiment.

[0033] FIG. 7c is a perspective view of a cartridge of an aerosol generating device according to one embodiment.

[0034] FIG. 7d is a perspective view of a cartridge 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 are given the same reference numbers and redundant descriptions thereof will be omitted.

[0036] The suffixes "module" and "part" used for components in the following description are given or used interchangeably only for the convenience of writing specifications, and do not have distinct meanings or roles in themselves.

[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 in between. 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 in between. Furthermore, singular expressions include plural expressions unless the context clearly indicates otherwise.

[0040] FIG. 1 is a block diagram of an aerosol generating device (1) according to one embodiment of the present disclosure.

[0041] Referring to FIG. 1, an aerosol generating device (1) according to one embodiment may include a power source (11), a control unit (12), a sensor (13), an output unit (14), an input unit (15), a communication unit (16), a memory (17), and at least one heater (heater (18) or cartridge heater (24).

[0042] However, the internal structure of the aerosol generating device (1) is not limited to that illustrated in Fig. 1. That is, a person having ordinary skill in the art related to the present embodiment will understand that, depending on the design of the aerosol generating device (1), some of the components illustrated in Fig. 1 may be omitted or new components may be added.

[0043] In one embodiment, the sensor (13) can detect the status of the aerosol generating device (1) or the status around the aerosol generating device (1) and transmit the detected information to the control unit (12). Based on the detected information, the control unit (12) can control the aerosol generating device (1) to perform various functions, such as controlling the operation of the cartridge heater (24) and / or heater (18), restricting smoking, determining whether a stick and / or cartridge is inserted, and displaying a notification.

[0044] In one embodiment, the sensor (13) may include at least one of a temperature sensor (13a), a puff sensor (13b), an insertion detection sensor (13c), a reuse detection sensor (13d), a cartridge detection sensor (13e), a cap detection sensor (13f), and a motion detection sensor (13g).

[0045] In one embodiment, the temperature sensor (13a) can detect the temperature at which the cartridge heater (24) and / or the heater (18) is heated. The aerosol generating device (1) may include a separate temperature sensor that detects the temperature of the cartridge heater (24) and / or the heater (18), or the cartridge heater (24) and / or the heater (18) itself may serve as the temperature sensor.

[0046] In one embodiment, the temperature sensor (13a) may output a signal corresponding to the temperature of the cartridge heater (24) and / or the heater (18). For example, the temperature sensor (13a) may include a resistance element whose resistance value changes in response to a change in the temperature of the cartridge heater (24) and / or the heater (18). It may be implemented by a thermistor, which is an element that utilizes the property of the resistance changing according to the temperature. In this case, the temperature sensor (13a) may output a signal corresponding to the resistance value of the resistance element as a signal corresponding to the temperature of the cartridge heater (24) and / or the heater (18).

[0047] For example, the temperature sensor (13a) may be configured as a sensor that detects the resistance value of the cartridge heater (24) and / or the heater (18). At this time, the temperature sensor (13a) may output a signal corresponding to the resistance value of the cartridge heater (24) and / or the heater (18) as a signal corresponding to the temperature of the cartridge heater (24) and / or the heater (18).

[0048] In one embodiment, a temperature sensor (13a) may be placed around the power source (11) to monitor the temperature of the power source (11). The temperature sensor (13a) may be placed adjacent to the power source (11). For example, the temperature sensor (13a) may be attached to one side of a battery, which is the power source (11). For example, the temperature sensor (13a) may be mounted on one side of a printed circuit board.

[0049] In one embodiment, a temperature sensor (13a) is disposed inside the body of the aerosol generating device (1) to detect the internal temperature of the body.

[0050] In one embodiment, the puff sensor (13b) can detect a user's puff based on various physical changes in the airflow path. The puff sensor (13b) can output a signal corresponding to the puff. For example, the puff sensor (13b) can be a pressure sensor. The puff sensor (13b) can output a signal corresponding to the internal pressure of the aerosol generating device (1). Here, the internal pressure of the aerosol generating device (1) can correspond to the pressure of the airflow path through which the gas flows. The puff sensor (13b) can be arranged in correspondence to the airflow path through which the gas flows in the aerosol generating device (1).

[0051] In one embodiment, the insertion detection sensor (13c) can detect the insertion and / or removal of the stick. The insertion detection sensor (13c) can detect a signal change according to the insertion and / or removal of the stick. The insertion detection sensor (13c) can be installed around the insertion space. The insertion detection sensor (13c) can detect the insertion and / or removal of the stick according to a change in the permittivity inside the insertion space. For example, the insertion detection sensor (13c) can be an inductive sensor and / or a capacitance sensor.

[0052] In one embodiment, the inductive sensor may include at least one coil. The coil of the inductive sensor may be positioned adjacent to the insertion space. For example, when a magnetic field changes around the current-flowing coil, the characteristics of the current flowing in the coil may change according to Faraday's law of electromagnetic induction. Here, the characteristics of the current flowing in the coil may include the frequency of the alternating current, the current value, the voltage value, the inductance value, the impedance value, etc.

[0053] In one embodiment, the inductive sensor may output a signal corresponding to a characteristic of a current flowing through the coil. For example, the inductive sensor may output a signal corresponding to the inductance value of the coil.

[0054] In one embodiment, the capacitance sensor may include a conductor. The conductor of the capacitance sensor may be positioned adjacent to the insertion space. The capacitance sensor may output a signal corresponding to the electromagnetic properties of the surroundings, for example, the electrostatic capacitance around the conductor. For example, when a stick including a wrapper made of a metal material is inserted into the insertion space, the electromagnetic properties around the conductor may be changed by the wrapper of the stick.

[0055] In one embodiment, the reuse detection sensor (13d) can detect whether the stick has been reused. The reuse detection sensor (13d) may be a color sensor. The color sensor can detect the color of the stick. The color sensor can detect the color of a portion of the wrapper that wraps the outside of the stick. The color sensor can detect a value for an optical characteristic corresponding to the color of an object based on light reflected from the object. For example, the optical characteristic may be a wavelength of light. The color sensor may be implemented as a single component with the proximity sensor, or may be implemented as a separate component distinct from the proximity sensor.

[0056] In one embodiment, at least some of the wrappers constituting the stick may change color due to aerosol. The reuse detection sensor (13d) may be positioned corresponding to a position where at least some of the wrappers that change color due to aerosol are disposed when the stick is inserted into the insertion space. For example, before the stick is used by a user, the color of at least some of the wrappers may be a first color. At this time, as at least some of the wrappers are wetted by the aerosol generated by the aerosol generating device (1) while passing through the stick, the color of at least some of the wrappers may change to a second color. Meanwhile, the color of at least some of the wrappers may be maintained at the second color after changing from the first color to the second color.

[0057] In one embodiment, the cartridge detection sensor (13e) can detect the mounting and / or removal of the cartridge. The cartridge detection sensor (13e) can be implemented by an inductance-based sensor, a capacitive sensor, a resistance sensor, a Hall sensor (hall IC) using the Hall effect, etc.

[0058] In one embodiment, the cap detection sensor (13f) can detect the attachment and / or removal of the cap. When the cap is separated from the body, a portion of the cartridge and body covered by the cap may be exposed to the outside. The cap detection sensor (13f) can be implemented by a contact sensor, a Hall sensor (hall IC), an optical sensor, or the like.

[0059] In one embodiment, the motion detection sensor (13g) can detect the movement of the aerosol generating device (1). The motion detection sensor (13g) can be implemented with at least one of an acceleration sensor and a gyro sensor.

[0060] In one embodiment, the sensor (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 (GPS), and a proximity sensor. Since the function of each sensor can be intuitively inferred by a person skilled in the art from its name, a detailed description thereof may be omitted.

[0061] In one embodiment, the output unit (14) can output information on the status of the aerosol generating device (1) and provide it to the user. The output unit (14) can include at least one of a display (14a), a haptic unit (14b), and an audio output unit (14c), but is not limited thereto. When the display (14a) and the touch pad form a layered structure to form a touch screen, the display (14a) can be used as an input device in addition to an output device.

[0062] In one embodiment, the display (14a) can visually provide information about the aerosol generating device (1) to the user.

[0063] For example, information about the aerosol generating device (1) may mean various information such as the charging / discharging status of the power supply (11) of the aerosol generating device (1), the preheating status of the heater (18), the insertion / removal status of the stick and / or cartridge, the mounting / removal status of the cap, or the status in which the use of the aerosol generating device (1) is restricted (e.g., detection of an abnormal item), and the display (14a) may output the above information to the outside. For example, the display (14a) may be in the form of an LED light-emitting element. For example, the display (14a) may be a liquid crystal display panel (LCD), an organic light-emitting display panel (OLED), or the like.

[0064] In one embodiment, the haptic unit (14b) can provide tactile information about the aerosol generating device (1) to the user by converting an electrical signal into a mechanical stimulus or an electrical stimulus. For example, the haptic unit (14b) can generate a vibration corresponding to the completion of the initial preheating when the initial power is supplied to the cartridge heater (24) and / or heater (18) for a set period of time. The haptic unit (14b) can include a vibration motor, a piezoelectric element, or an electrical stimulation device.

[0065] In one embodiment, the acoustic output unit (14c) can provide information about the aerosol generating device (1) to the user audibly. For example, the acoustic output unit (14c) can convert an electrical signal into an acoustic signal and output it externally.

[0066] In one embodiment, the power source (11) can supply power used to operate the aerosol generating device (1). The power source (11) can supply power so that the cartridge heater (24) and / or the heater (18) can be heated. In addition, the power source (11) can supply power required for the operation of other components provided in the aerosol generating device (1), such as a sensor (13), an output unit (14), an input unit (15), a communication unit (16), and a 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.

[0067] Although not shown in FIG. 1, the aerosol generating device (1) may further include a power protection circuit. The power protection circuit may be electrically connected to a power source (11) and include a switching element.

[0068] In one embodiment, the power protection circuit may block the power supply (11) according to a predetermined condition. For example, the power protection circuit may block the power supply (11) when the voltage level of the power supply (11) is equal to or higher than a first voltage corresponding to overcharge. For example, the power protection circuit may block the power supply (11) when the voltage level of the power supply (11) is lower than a second voltage corresponding to overdischarge.

[0069] In one embodiment, the heater (18) may receive power from the power source (11) to heat the medium or aerosol generating material within the stick. Although not illustrated in FIG. 1, the aerosol generating device (1) may further include a power conversion circuit (e.g., a DC / DC converter) that converts power from the power source (11) and supplies it to the cartridge heater (24) and / or the heater (18). In addition, when the aerosol generating device (1) generates the aerosol by induction heating, the aerosol generating device (1) may further include a DC / AC converter that converts the direct current power of the power source (11) into alternating current power.

[0070] In one embodiment, the control unit (12), the sensor (13), the output unit (14), the input unit (15), the communication unit (16), and the memory (17) may receive power from the power source (11) to perform their functions. Although not illustrated in FIG. 1, the device may further include a power conversion circuit, for example, an LDO (low dropout) circuit or a voltage regulator circuit, which converts the power of the power source (11) and supplies it to each component. Also, although not illustrated in FIG. 1, a noise filter may be provided between the power source (11) and the heater (18). The noise filter may be a low pass filter. The low pass filter may include at least one inductor and at least one capacitor. The cutoff frequency of the low pass filter may correspond to the frequency of the high frequency switching current applied from the power source (11) to the heater (18). The low pass filter may prevent high frequency noise components from being applied to a sensor (13), such as an insertion detection sensor (13c).

[0071] In one embodiment, the cartridge heater (24) and / or heater (18) may be formed of any suitable electrically resistive material. For example, suitable electrically resistive materials may be metals or metal alloys including, but not limited to, titanium, zirconium, tantalum, platinum, nickel, cobalt, chromium, hafnium, niobium, molybdenum, tungsten, tin, gallium, manganese, iron, copper, stainless steel, nichrome, and the like. Additionally, the heater (18) may be implemented as, but not limited to, a metal heating wire, a metal heating plate having electrically conductive tracks arranged thereon, a ceramic heating element, and the like.

[0072] In one embodiment, the heater (18) may be an induction heating heater. For example, the heater (18) may include a susceptor that heats the aerosol generating material by generating heat through a magnetic field applied by a coil.

[0073] In one embodiment, the input unit (15) may receive information input from a user or output information to the user. For example, the input unit (15) may be a touch panel. The touch panel may include at least one touch sensor that detects touch. For example, the touch sensor may include, but is not limited to, a capacitive touch sensor, a resistive touch sensor, a surface acoustic wave touch sensor, an infrared touch sensor, etc.

[0074] In one embodiment, the display (14a) and the touch panel may be implemented as a single panel. For example, the touch panel may be inserted into the display (14a) (on-cell type or in-cell type). For example, the touch panel may be added on to the display (14a) (add-on type).

[0075] Meanwhile, the input unit (15) may include, but is not limited to, buttons, key pads, dome switches, jog wheels, jog switches, etc.

[0076] In one embodiment, the memory (17) is hardware that stores various data processed in the aerosol generating device (1), and can store data processed and data to be processed in the control unit (12). 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. 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.

[0077] In one embodiment, the communication unit (16) may include at least one component for communicating with another electronic device. For example, the communication unit (16) may include at least one of a short-range communication unit and a wireless communication unit.

[0078] In one embodiment, the short-range wireless communication unit may include, but is not limited to, a Bluetooth communication unit, a BLE (Bluetooth Low Energy) communication unit, a Near Field Communication unit, a WLAN (Wi-Fi) communication unit, a Zigbee communication unit, an infrared (IrDA, infrared Data Association) communication unit, a WFD (Wi-Fi Direct) communication unit, an UWB (ultra wideband) communication unit, an Ant+ communication unit, and the like.

[0079] In one embodiment, the wireless communication unit may include, but is not limited to, a cellular network communication unit, an Internet communication unit, a computer network (e.g., a LAN or WAN) communication unit, and the like.

[0080] Although not shown in FIG. 1, the aerosol generating device (1) further includes a connection interface such as a USB (universal serial bus) interface, and can transmit and receive information or charge a power source (11) by connecting to another external device through a connection interface such as a USB interface.

[0081] In one embodiment, the control unit (12) can control the overall operation of the aerosol generating device (1). In one embodiment, the control unit (12) can include at least one processor. The processor can be implemented as an array of multiple logic gates, or can be implemented as a combination of a general-purpose microprocessor and a memory storing a program executable by the microprocessor. Furthermore, it will be understood by those skilled in the art to which the present embodiment pertains that the processor can be implemented as other types of hardware.

[0082] In one embodiment, the control unit (12) can control the temperature of the heater (18) by controlling the supply of power from the power source (11) to the heater (18). The control unit (12) can control the temperature of the cartridge heater (24) and / or the heater (18) based on the temperature of the cartridge heater (24) and / or the heater (18) sensed by the temperature sensor (13a). The control unit (12) can adjust the power supplied to the cartridge heater (24) and / or the heater (18) based on the temperature of the cartridge heater (24) and / or the heater (18). For example, the control unit (12) can determine a target temperature for the cartridge heater (24) and / or the heater (18) based on a temperature profile stored in the memory (17).

[0083] In one embodiment, the aerosol generating device (1) may include a power supply circuit (not shown) electrically connected to the power supply (11) between the power supply (11) and the cartridge heater (24) and / or the heater (18). The power supply circuit may be electrically connected to the cartridge heater (24), the heater (18), or the induction coil (181). The power supply circuit may include at least one switching element. The switching element may be implemented by a bipolar junction transistor (BJT), a field effect transistor (FET), or the like. The control unit (12) may control the power supply circuit.

[0084] In one embodiment, the control unit (12) can control power supply by controlling the switching of a switching element of a power supply circuit. The power supply circuit may be an inverter that converts direct current power output from a power source (11) into alternating current power. For example, the inverter may be configured as a full-bridge circuit or a half-bridge circuit including a plurality of switching elements.

[0085] In one embodiment, the control unit (12) can turn on the switching element so that power is supplied from the power source (11) to the cartridge heater (24) and / or the heater (18). The control unit (12) can turn off the switching element so that power is cut off to the cartridge heater (24) and / or the heater (18). The control unit (12) can adjust the current supplied from the power source (11) by adjusting the frequency and / or duty ratio of the current pulse input to the switching element.

[0086] In one embodiment, the control unit (12) can control the voltage output from the power source (11) by controlling the switching of the switching element of the power supply circuit. The power conversion circuit can convert the voltage output from the power source (11). For example, the power conversion circuit can include a buck converter that steps down the voltage output from the power source (11). For example, the power conversion circuit can be implemented through a buck-boost converter, a zener diode, etc.

[0087] In one embodiment, the control unit (12) can control the on / off operation of the switching element included in the power conversion circuit to adjust the level of the voltage output from the power conversion circuit. When the on state of the switching element continues, the level of the voltage output from the power conversion circuit may correspond to the level of the voltage output from the power source (11). The duty ratio for the on / off operation of the switching element may correspond to the ratio of the voltage output from the power conversion circuit to the voltage output from the power source (11). As the duty ratio for the on / off operation of the switching element decreases, the level of the voltage output from the power conversion circuit may decrease. The heater (18) can be heated based on the voltage output from the power conversion circuit.

[0088] In one embodiment, the control unit (12) can control power to be supplied to the heater (18) using at least one of a pulse width modulation (PWM) method and a proportional-integral-differential (PID) method.

[0089] 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) using the PWM method. The control unit (12) can control the power supplied to the heater (18) by adjusting the frequency and duty ratio of the current pulse.

[0090] For example, the control unit (12) can determine a target temperature that is the target of control based on a temperature profile. The control unit (12) can control the power supplied to the heater (18) by using the PID method, which is a feedback control method using a difference value between the temperature of the heater (18) and the target temperature, a value obtained by integrating the difference value over time, and a value obtained by differentiating the difference value over time.

[0091] In one embodiment, the control unit (12) can prevent the cartridge heater (24) and / or the heater (18) from overheating. For example, the control unit (12) can control the operation of the power conversion circuit to cut off the supply of power to the cartridge heater (24) and / or the heater (18) based on the temperature of the cartridge heater (24) and / or the heater (18) exceeding a preset limit temperature. For example, the control unit (12) can reduce the amount of power supplied to the cartridge heater (24) and / or the heater (18) by a predetermined percentage based on the temperature of the cartridge heater (24) and / or the heater (18) exceeding a preset limit temperature. For example, the control unit (12) can determine that the aerosol generating material contained in the cartridge is exhausted based on the temperature of the cartridge heater (24) exceeding the limit temperature, and can cut off the supply of power to the cartridge heater (24).

[0092] In one embodiment, the control unit (12) can control the charging and discharging of the power source (11). The control unit (12) can check the temperature of the power source (11) based on the output signal of the temperature sensor (13a).

[0093] In one embodiment, when a power line is connected to the battery terminal of the aerosol generating device (1), the control unit (12) can check whether the temperature of the power source (11) is equal to or higher than a first limit temperature, which is a criterion for blocking charging of the power source (11). If the temperature of the power source (11) is lower than the first limit temperature, the control unit (12) can control the power source (11) to be charged based on a preset charging current. If the temperature of the power source (11) is equal to or higher than the first limit temperature, the control unit (12) can block charging of the power source (11).

[0094] In one embodiment, when the power of the aerosol generating device (1) is turned on, the control unit (12) can check whether the temperature of the power source (11) is equal to or higher than the second limit temperature, which is a standard for blocking discharge of the power source (11). If the temperature of the power source (11) is lower than the second limit temperature, the control unit (12) can control to use the power stored in the power source (11). If the temperature of the power source (11) is equal to or higher than the second limit temperature, the control unit (12) can stop using the power stored in the power source (11).

[0095] In one embodiment, 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).

[0096] In one embodiment, the control unit (12) can determine whether a stick is inserted into the insertion space through the insertion detection sensor (13c). The control unit (12) can determine that the stick is inserted based on the output signal of the insertion detection sensor (13c). If it is determined that the stick is inserted into the insertion space, the control unit (12) can control to supply power to the cartridge heater (24) and / or the heater (18). For example, the control unit (12) can supply power to the cartridge heater (24) and / or the heater (18) based on a temperature profile stored in the memory (17).

[0097] In one embodiment, the control unit (12) can determine whether the stick is removed from the insertion space. For example, the control unit (12) can determine whether the stick is removed from the insertion space through the insertion detection sensor (13c). For example, the control unit (12) can determine that the stick is removed from the insertion space when the temperature of the heater (18) is higher than a limited temperature or when the temperature change slope of the heater (18) is higher than a set slope. When it is determined that the stick is removed from the insertion space, the control unit (12) can cut off the power supply to the cartridge heater (24) and / or the heater (18).

[0098] In one embodiment, the control unit (12) can control the power supply time and / or power supply amount to the heater (18) based on the state of the stick detected by the sensor (13). The control unit (12) can check the level range within which the level of the signal of the capacitance sensor is included based on a lookup table. The control unit (12) can determine the moisture content of the stick based on the checked level range.

[0099] In one embodiment, when the stick is in an over-humidified state, the control unit (12) can control the power supply time to the heater (18) to increase the preheating time of the stick compared to the normal state.

[0100] In one embodiment, the control unit (12) can determine whether a stick inserted into an insertion space has been reused through a reuse detection sensor (13d). For example, the control unit (12) can compare a sensing value of a signal of the reuse detection sensor (13d) with a first reference range that includes a first color, and if the sensing value is included in the first reference range, it can determine that the stick has not been used. For example, the control unit (12) can compare a sensing value of a signal of the reuse detection sensor (13d) with a second reference range that includes a second color, and if the sensing value is included in the second reference range, it can determine that the stick has been used. If it is determined that the stick has been used, the control unit (12) can cut off the supply of power to the cartridge heater (24) and / or the heater (18).

[0101] In one embodiment, the control unit (12) can determine whether the cartridge is engaged and / or removed through the cartridge detection sensor (13e). For example, the control unit (12) can determine whether the cartridge is engaged and / or removed based on the sensing value of the signal of the cartridge detection sensor (13e).

[0102] In one embodiment, the control unit (12) can determine whether the aerosol generating material of the cartridge is exhausted. For example, the control unit (12) can preheat the cartridge heater (24) and / or the heater (18) by applying power, and determine whether the temperature of the cartridge heater (24) exceeds a limited temperature during the preheating period. If the temperature of the cartridge heater (24) exceeds the limited temperature, the control unit (12) can determine that the aerosol generating material of the cartridge is exhausted. If the control unit (12) determines that the aerosol generating material of the cartridge is exhausted, the control unit (12) can cut off the supply of power to the cartridge heater (24) and / or the heater (18).

[0103] In one embodiment, the control unit (12) can determine whether the cartridge is usable. For example, the control unit (12) can determine that the cartridge is unusable if the current number of puffs is greater than or equal to the maximum number of puffs set for the cartridge based on data stored in the memory (17). For example, the control unit (12) can determine that the cartridge is unusable if the total time that the heater (24) has been heated is greater than or equal to the preset maximum time or the total amount of power supplied to the heater (24) is greater than or equal to the preset maximum amount of power.

[0104] In one embodiment, the control unit (12) can make a judgment regarding the user's inhalation through the puff sensor (13b). For example, the control unit (12) can determine whether a puff has been generated based on the sensing value of the signal of the puff sensor (13b). For example, the control unit (12) can determine the intensity of the puff based on the sensing value of the signal of the puff sensor (13b). If the number of puffs reaches a preset maximum number of puffs or if no puffs are detected for a preset time or longer, the control unit (12) can cut off the power supply to the cartridge heater (24) and / or heater (18).

[0105] In one embodiment, the control unit (12) can determine whether the cap is engaged and / or removed through the cap detection sensor (13f). For example, the control unit (12) can determine whether the cap is engaged and / or removed based on the sensing value of the signal of the cap detection sensor (13f).

[0106] In one embodiment, the control unit (12) can control the output unit (14) based on the result detected by the sensor (13). For example, when the number of puffs counted through the puff sensor (13b) reaches a preset number, the control unit (12) can notify the user that the aerosol generating device (1) will soon be terminated through at least one of the display (14a), the haptic unit (14b), and the audio output unit (14c). For example, the control unit (12) can notify the user through the output unit (14) based on a determination that there is no stick in the insertion space. For example, the control unit (12) can notify the user through the output unit (14) based on a determination that the cartridge and / or cap is not mounted. For example, the control unit (12) can transmit information about the temperature of the cartridge heater (24) and / or the heater (18) to the user through the output unit (14).

[0107] In 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. The event may include operations such as detection of insertion of a stick, initiation of heating of the stick, detection of a puff, termination of a puff, detection of overheating of the cartridge heater (24) and / or the heater (18), detection of overvoltage application to the cartridge heater (24) and / or the heater (18), termination of heating of the stick, power on / off of the aerosol generating device (1), initiation of charging of the power source (11), detection of overcharge of the power source (11), termination of charging of the power source (11), etc. performed in the aerosol generating device (1). The history of events may include the date and time when the event occurred, log data corresponding to the event, etc. For example, when the predetermined event is detection of insertion of a stick, the log data corresponding to the event may include data on a sensing value of the insertion detection sensor (13c), etc. For example, if a given event is overheating detection of the cartridge heater (24) and / or heater (18), log data corresponding to the event may include data on the temperature of the cartridge heater (24) and / or heater (18), the voltage applied to the cartridge heater (24) and / or heater (18), the current flowing through the cartridge heater (24) and / or heater (18), etc.

[0108] In one embodiment, the control unit (12) may control to form a communication link with an external device, such as a user's mobile terminal. Upon receiving data regarding authentication from the external device through the communication link, the control unit (12) may release restrictions on the use of at least one function of the aerosol generating device (1). Here, the data regarding authentication may include data indicating completion of user authentication for a user corresponding to the external device. The user may perform user authentication through the external device. The external device may determine whether user data is valid based on the user's birthday, a unique number representing the user, etc., and may receive data regarding the user's authorization to use the aerosol generating device (1) from an external server. The external device may transmit data indicating completion of user authentication to the aerosol generating device (1) based on the data regarding the authorization. When the user authentication is completed, the control unit (12) may release restrictions on the use of at least one function of the aerosol generating device (1). For example, the control unit (12) can release the restriction on the use of the heating function that supplies power to the heater (18) when user authentication is completed.

[0109] In 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 formed with the external device. Based on the received status data, the external device can output the remaining capacity of the power supply (11) of the aerosol generating device (1), the operation mode, etc., through a display of the external device.

[0110] In one embodiment, the external device may transmit a location search request to the aerosol generating device (1) based on an input that initiates location search of the aerosol generating device (1). When receiving a location search request from the external device, the control unit (12) may control at least one of the output devices to perform an operation corresponding to the location search based on the received location search request. For example, the haptic unit (14b) may generate vibration in response to the location search request. For example, the display (14a) may output an object corresponding to the location search and the end of the search in response to the location search request.

[0111] In one embodiment, the control unit (12) can control to perform a firmware update when receiving firmware data from an external device. The external device can check the current version of the firmware of the aerosol generating device (1) and determine whether a new version of the firmware exists. When an input requesting firmware download is received, the external device can receive a new version of the firmware data and transmit the new version of the firmware data to the aerosol generating device (1). The control unit (12) can control to perform a firmware update of the aerosol generating device (1) upon receiving a new version of the firmware data.

[0112] In one embodiment, the control unit (12) may transmit data on the sensing value of at least one sensor (13) to an external server (not shown) through the communication unit (16), and receive and store a learning model generated by learning the sensing value through machine learning such as deep learning from the server. The control unit (12) may perform an operation of determining a user's inhalation pattern, an operation of generating a temperature profile, etc. using the learning model received from the server. The control unit (12) may store, in the memory (17), the sensing value data of at least one sensor (13) and data for learning an artificial neural network (ANN). For example, the memory (17) may store a database for each component provided in the aerosol generating device (1) for learning the artificial neural network (ANN), and weights and biases (ias) forming the artificial neural network (ANN) structure. The control unit (12) can learn data on the sensing values ​​of at least one sensor (13), the user's suction pattern, the temperature profile, etc., stored in the memory (17), and generate at least one learning model used for determining the user's suction pattern, generating the temperature profile, etc.

[0113] FIG. 2 is a perspective view of an aerosol generating device (50) according to one embodiment, and FIG. 3 is an exploded perspective view of an aerosol generating device (50) according to one embodiment.

[0114] Referring to FIGS. 2 and 3, an aerosol generating device (50) according to one embodiment of the present disclosure (e.g., the aerosol generating device (1) of FIG. 1) may include at least a portion of a main body (100) and a case (200).

[0115] Hereinafter, any content that overlaps with the above-described content will be omitted for explanation, and it is to be understood that some components and structures of the aerosol generating device (50) may be replaced, added, or omitted within a range easily understandable to those skilled in the art by referring to the drawings and descriptions below. In addition, at least one component or feature of the above-described embodiments may be combined in the aerosol generating device (50) unless it is technically clearly impossible.

[0116] In one embodiment, the main body (100) may be composed of a first body (110) and a second body (120). The second body (120) may be positioned above the first body (110) (e.g., in the +Z direction). The first body (110) may be elongated in the vertical direction (e.g., in the Z-axis direction). The main body (100) may accommodate components for driving the device therein.

[0117] In one embodiment, the second body (120) may provide an upper-open insertion space (134). The insertion space (134) may be located inside the second body (120). The insertion space (134) may extend vertically. The insertion space (134) may be formed in a pipe (130) located inside the second body (120).

[0118] In one embodiment, the case (200) may have a hollow shape with an open bottom (e.g., in the -Z direction). The second body (120) may be inserted into the hollow of the case (200). The case (200) may be detachably coupled to the main body (100). The case (200) may cover the second body (120) so as to surround it.

[0119] In one embodiment, the lateral portion (211) of the case (200) may surround and cover the side wall (121) of the second body (120). The upper portion (212) of the case (200) may cover the upper portion or cover (180) of the second body (120). When the case (200) is coupled to the main body (100), the case (200) may cover both the main body (100) and the cartridge (300). The cartridge (300) may be placed inside the case (200).

[0120] In one embodiment, the insertion port (214) may be formed by opening the upper portion (212) of the case (200). The insertion port (214) may correspond to the opening of the insertion space (134). The cap (215) may be movably installed in the upper portion (212) of the case (200). The slide hole (213) may be formed by extending to one side from the insertion port (214) in the upper portion (212) of the case (200). The cap (215) may move along the slide hole (213). The cap (215) may open and close the insertion port (214) and the insertion space (134). The stick (S) may be inserted into the insertion space (134) through the insertion port (214). For example, the stick (S) may be a cigarette.

[0121] In one embodiment, the side wall (121) and the partition wall (125) may form a lateral portion of the second body (120). The side wall (121) and the partition wall (125) may be connected. The side wall (121) may be covered by the inner surface of the case (200). The partition wall (125) may separate the cartridge coupling space (124a) and the insertion space (134).

[0122] In one embodiment, the baffle (125) may be positioned to face the cartridge (300). For example, the baffle (125) may face a chamber (e.g., chamber (C1) of FIGS. 5 and 6) that stores a liquid aerosol generating substance in the cartridge (300).

[0123] In one embodiment, the second body (120) may include a mounting portion (122). The mounting portion (122) may extend from the lower portion of the bulkhead (125) to one side. The mounting portion (122) may be formed on the upper portion of the first body (110). The mounting portion (122) may cover the lower portion of the cartridge coupling space (124a). The bottom surface of the cartridge (300) may be supported by being mounted on the mounting portion (122).

[0124] In one embodiment, the second body (120) may include an extension (140). The extension (140) may extend from the upper portion of the partition wall (125) to one side. The extension (140) may extend in the direction in which the mounting portion (122) is formed. The extension (140) may cover the upper portion of the cartridge coupling space (124a). The extension (140) may cover the upper surface of the cartridge (300). The extension (140) may cover the cartridge inlet (301) formed in the cartridge (300). A gap through which air can flow may be formed between the extension (140) and the cartridge inlet (301).

[0125] In one embodiment, the cartridge coupling space (124a) may be formed on one side of the second body (120). The cartridge coupling space (124a) may be defined by the mounting portion (122), the partition wall (125), and the extension portion (140) of the second body (120). The bottom of the cartridge coupling space (124a) may be covered by the mounting portion (122). One side of the cartridge coupling space (124a) may be covered by the partition wall (125) of the second body (120). The upper side of the cartridge coupling space (124a) may be covered by the extension portion (140). The cartridge coupling space (124a) may be open to the outside between the mounting portion (122) and the extension portion (140).

[0126] In one embodiment, the cartridge (300) can be inserted into the cartridge coupling space (124a) and coupled to the main body (100). The cartridge (300) can be detachably coupled to the main body (100). A lateral surface (311) of the cartridge (300) can face the partition wall (125). An upper surface (312) of the cartridge (300) can be covered by an extension portion (140). A bottom surface (322) of the cartridge (300) can be mounted on a mounting portion (122). A cartridge terminal (128) can be connected to the cartridge (300) to supply power to a heater (342) inside the cartridge (300).

[0127] In one embodiment, the coupling hook (125a) may be formed on the second body (120). The pusher (125b) may be formed on the second body (120). The coupling hook (125a) and the pusher (125b) may be formed as a pair on both sides and may be positioned at opposite positions. The cartridge (300) may include a hook coupling groove (315). The hook coupling groove (315) may be formed at a position corresponding to the coupling hook (125a). When the cartridge (300) is inserted into the cartridge coupling space (124a), the coupling hook (125a) may be coupled to the hook coupling groove (315) to couple the cartridge (300) and the main body (100). The pusher (125b) and the coupling hook (125a) may move in conjunction with each other. When the pusher (125b) is pressed, the coupling hook (125a) moves in a direction that separates it from the hook coupling groove (315), and the cartridge (300) can be separated from the main body (100).

[0128] In one embodiment, the connecting passage (133) may be formed at the lower portion of the bulkhead (125). The connecting passage (133) may be in communication with the insertion space (134). The connecting passage (133) may be opened to one side of the second body (120). When the cartridge (300) is coupled to the main body (100), the discharge port (323) is inserted into the connecting passage (133), and the connecting passage (133) and the cartridge discharge port (304) may be in communication with each other.

[0129] In one embodiment, the level sensor (260) may be provided in the main body (100). For example, the level sensor (260) may be disposed in the partition wall (125) of the second body (120). The level sensor (260) may be a component of a sensor of the aerosol generating device (50) (e.g., sensor (13) of FIG. 1). The level sensor (260) may detect the capacity or level of the liquid aerosol generating material stored in the chamber (C1). The level sensor (260) may be a level sensor or a capacity sensor.

[0130] In one embodiment, a button (241) may be provided on the main body (100). For example, the button (241) may be arranged on the outer surface of the first body (110). The button (241) may be a component of an input portion (e.g., input portion (15) of FIG. 1) of the aerosol generating device (50). A user may press the button (241) to turn the aerosol generating device (50) on / off. Alternatively, the user may provide an input signal to the aerosol generating device (50) in various ways, such as pressing, rotating, or haptically touching the button (241).

[0131] In one embodiment, the display (243) may be provided on the main body (100). For example, the display (243) may be arranged on the outer surface of the first body (110). The display (243) may be a component (e.g., the display (14a) of FIG. 1) of an output unit (e.g., the output unit (14) of FIG. 1) of the aerosol generating device (50). The display (243) may visually display various information regarding operation, such as the operating status of the aerosol generating device (50), battery information, and capacity information of a liquid aerosol generating substance.

[0132] FIG. 4 is an exploded perspective view of a cartridge (300) of an aerosol generating device (50) according to one embodiment, and FIG. 5 is a cross-sectional view of a cartridge (300) of an aerosol generating device (50) according to one embodiment.

[0133] Referring to FIGS. 4 and 5, the cartridge (300) may include a first container (31) and a second container (32).

[0134] Hereinafter, any content that overlaps with the above-described content will be omitted for explanation, and it is to be understood that some components and structures of the cartridge (300) and the aerosol generating device (50) including the same may be replaced, added, or omitted within a range easily understandable to those skilled in the art by referring to the drawings and descriptions below. In addition, at least one component or feature of the above-described embodiments may be combined in the cartridge (300) and the aerosol generating device (50) including the same, unless it is technically clearly impossible.

[0135] In one embodiment, the first container (31) may be coupled to the upper side of the second container (32). The plate (35) may be coupled between the first container (31) and the second container (32) or between the first container (31) and the frame (33).

[0136] In one embodiment, the first container (31) may have a chamber (C1) capable of storing a liquid aerosol generating substance therein. The first container (31) surrounds the chamber (C1), and the lower portion of the chamber (C1) may be open. The opening of the chamber (C1) may be covered by a plate (35). The chamber (C1) may be a first chamber, a main chamber, a cartridge chamber, or a storage tank.

[0137] In one embodiment, the first container (31) may have an inlet passage (302) through which air passes. The chamber (C1) and the inlet passage (302) may be separated from each other. The inlet passage (302) may extend vertically along one side of the first container (31).

[0138] In one embodiment, the first container (31) may have a cartridge inlet (301). The cartridge inlet (301) is formed by opening the upper portion of the first container (31) and may be connected to an inlet passage (302). The cartridge inlet (301) may be connected to the upper portion of the inlet passage (302). The lower portion of the inlet passage (302) may be connected to a connecting hole (351) and a chamber inlet (303).

[0139] In one embodiment, a second container (32) may be coupled to the lower portion of the first container (31). The second container (32) may have a space (324) with an open upper portion and a covered lower portion. The frame (33) may be accommodated within the space (324) of the second container (32).

[0140] In one embodiment, the second container (32) may have a cartridge discharge port (304). The cartridge discharge port (304) may be formed on a lateral portion (321) of the second container (32).

[0141] In one embodiment, the cartridge discharge port (304) may be formed on the inside of a port protruding in the thickness direction from the side of the second container (32). The cartridge discharge port (304) may be in communication with a space (324). The second container (32) may include a discharge port (323).

[0142] In one embodiment, the discharge port (323) may form a cartridge discharge port (304) therein. The discharge port (323) may protrude from one side (321) of the second container (32). The discharge port (323) may surround the cartridge discharge port (304). The cartridge discharge port (304) may be referred to as a discharge port.

[0143] In one embodiment, the frame (33) can be inserted into a space (324) inside the second container (32) and coupled with the second container (32). A fastening member (326) protruding from the side wall of the second container (32) into the space (324) can be coupled with the frame (33) to secure the frame (33).

[0144] In one embodiment, the frame (33) may have an atomization chamber (C2) therein. The frame (33) surrounds the atomization chamber (C2), and the upper portion of the atomization chamber (C2) may be open. The upper portion of the atomization chamber (C2) may be covered by a plate (35). The atomization chamber (C2) may be a second chamber or an atomization space.

[0145] In one embodiment, the frame (33) may have a chamber inlet (303). The chamber inlet (303) may be formed by opening one side of a side wall surrounding the atomization chamber (C2). The chamber inlet (303) may extend upwardly from the atomization chamber (C2) toward the inlet passage (302). One end of the chamber inlet (303) may be connected to the atomization chamber (C2), and the other end of the chamber inlet (303) may be connected to the inlet passage (302) and the connecting hole (351).

[0146] In one embodiment, the frame (33) may have a chamber outlet (332). The chamber outlet (332) may be formed on a lateral portion of the frame (33). The chamber outlet (332) may be in communication with the atomization chamber (C2). The chamber outlet (332) may be formed on the inside of a port protruding in the thickness direction from the lateral portion of the frame (33).

[0147] In one embodiment, the chamber outlet (332) may be in communication with the atomization chamber (C2). The chamber outlet (332) may be formed at a position corresponding to the cartridge outlet (304). The chamber outlet (332) may be formed at a position opposite to the chamber inlet (303) with respect to the atomization chamber (C2). When the frame (33) is combined with the second container (32), the chamber outlet (332) and the cartridge outlet (304) may be in communication with each other.

[0148] In one embodiment, the frame (33) may have a wick coupling groove (334) therein. The wick coupling groove (334) may be in communication with the atomization chamber (C2). The wick coupling groove (334) may be formed by the atomization chamber (C2) being sunken to one side. The wick coupling grooves (334) may be formed in pairs, and a pair of wick coupling grooves (334) may be formed to be positioned opposite to each other in the atomization chamber (C2). The upper portion of the wick coupling groove (334) may be open.

[0149] In one embodiment, the wick (341) may have a cylindrical shape extending transversely in the atomization chamber (C2). Both ends of the wick (341) may be inserted and positioned in each of a pair of wick coupling grooves (334). The center of the wick (341) may be positioned in the atomization chamber (C2). The wick (341) may be connected to the chamber (C1) and may receive a liquid aerosol generating substance from the chamber (C1). The wick (341) may be fixed in the wick coupling groove (334) by a frame (33) and a plate (35).

[0150] In one embodiment, the heater (342) can be wound around the center of the wick (341). The heater (342) can be heated to heat the wick (341). For example, the heater (342) can be a resistive heater. The heater (342) can be placed in the atomization chamber (C2). An end of the heater (342) can be electrically connected to an electrode placed on the bottom of the second container (32) by penetrating the bottom of the frame (33).

[0151] In one embodiment, the plate (35) can be coupled between the first container (31) and the second container (32) or between the first container (31) and the frame (33). The plate (35) of the frame (33) can cover and seal the open portion of the chamber (C1). The plate (35) can cover the upper portion of the frame (33). The plate (35) can cover and seal the open portion of the atomization chamber (C2).

[0152] In one embodiment, the plate (35) may have a connecting hole (351) on one side. The connecting hole (351) may be located between the inlet passage (302) and the chamber inlet (303). The connecting hole (351) may connect the inlet passage (302) and the chamber inlet (303).

[0153] In one embodiment, the plate (35) may be provided with a liquid inlet hole (354). The liquid inlet holes (354) may be formed in pairs at positions corresponding to the wick coupling grooves (334). The pair of liquid inlet holes (354) may be located on the upper side of both ends of the wick (341). The liquid inlet holes (354) may connect the chamber (C1) and the wick coupling groove (334). The wick (341) may be connected to the chamber (C1) through the liquid inlet holes (354).

[0154] In one embodiment, the hook groove (335) may be formed on the upper side of the chamber outlet (332) at a position adjacent to the chamber outlet (332). The hook (353) may protrude downward from one side of the plate (35). The hook (353) may be inserted into and fastened to the hook groove (335) formed on the upper side of the frame (33). The plate (35) is fastened to the frame (33), and the first container (31) coupled to the second container (32) may press the edge portion of the plate (35) toward the frame (33).

[0155] In one embodiment, a user can hold a stick (S) inserted into the insertion space (134) in his / her mouth and inhale air. When the case (200) is connected to the main body (100), air can flow into the cartridge inlet (301) through the opening (201) formed in the case (200). The air can flow into the interior of the cartridge (300) through the cartridge inlet (301) and be discharged to the exterior of the cartridge (300) through the cartridge outlet (304). The air drawn into the interior of the cartridge (300) can sequentially pass through the inlet path (302), the connection hole (351), the chamber inlet (303), the atomization chamber (C2), the chamber outlet (332), and the cartridge outlet (304) and be discharged to the exterior.

[0156] In one embodiment, when the heater (342) heats the wick (341), an aerosol may be formed from the wick (341) within the atomization chamber (C2). Air passing through the cartridge (300) may be discharged from the atomization chamber (C2) through the cartridge discharge port (304) accompanied by the aerosol. The air discharged through the cartridge discharge port (304) may be supplied to the insertion space (134) and the stick (S) inserted into the insertion space (134) through the connection path (133).

[0157] Figure 6 is a partial cross-sectional view of an aerosol generating device (50) according to one embodiment.

[0158] Referring to FIG. 6, the second body (120) may have a side wall (121) and a partition wall (125). The side wall (121) and the partition wall (125) may be connected. The partition wall (125) may be formed to extend vertically between the pipe (130) and the cartridge coupling space (124a).

[0159] Hereinafter, any content that overlaps with the above-described content will be omitted for explanation, and it is to be understood that some components and structures of the aerosol generating device (50) may be replaced, added, or omitted within a range easily understandable to those skilled in the art by referring to the drawings and descriptions below. In addition, at least one component or feature of the above-described embodiments may be combined in the aerosol generating device (50) unless it is technically clearly impossible.

[0160] In one embodiment, the extension (140) may be formed to extend to one side from the upper portion of the second body (120). The upper surface (312) of the cartridge (300) may be covered by the extension (140). The extension (140) may cover the cartridge inlet (301) and its surroundings. A gap may be formed between the extension (140) and the cartridge inlet (301) and between the lower portion of the extension (140) and the upper surface (312) of the cartridge (300). The gap may connect the cartridge inlet (301) to the outside.

[0161] In one embodiment, the pipe (130) may be formed to be elongated in the vertical direction. The pipe (130) may be formed hollow. An insertion space (134) may be formed inside the pipe (130). The insertion space (134) may be opened upward. The insertion space (134) may extend vertically. A connection path (133) may be formed inside the pipe (130). The connection path (133) may be formed at the lower side of the insertion space (134). One end of the connection path (133) may be connected to the outside of the pipe (130), and the other end may be connected to the insertion space (134). The connection path (133) may be bent to one side from the lower part of the insertion space (134).

[0162] In one embodiment, the air flow sensor (161) may be installed inside the extension portion (140). The air flow sensor (161) may face the upper surface of the cartridge (300) or the cartridge inlet (301). The air flow sensor (161) may be installed adjacent to the cartridge inlet (301). The air flow sensor (161) may be located above the cartridge inlet (301). The air flow sensor (161) may overlap the cartridge inlet (301) in the vertical direction.

[0163] In one embodiment, the air flow sensor (161) can sense the surrounding air flow. The air flow sensor (161) may be a pressure sensor. The air flow sensor (161) can sense the air flow through changes in the surrounding air pressure. At a location adjacent to the cartridge inlet (301), the extension part (140) may have a hole for sensing the air flow. The air flow sensor (161) may be mounted on a substrate disposed inside the extension part (140) and may be electrically connected to the control unit (20). The control unit (20) may control the operations of various connected components based on the air flow sensor (161) detecting the air flow.

[0164] In one embodiment, the first sealing portion (151) may be placed between the first bulkhead portion (1251) and the inner plate (171). The first sealing portion (151) may be tightly attached to the upper portion of the first bulkhead portion (1251). The first sealing portion (151) may be tightly attached to the lower portion of the inner plate (171).

[0165] In one embodiment, the sensor receiving portion (156) of the second sealing portion (152) can seal the periphery of the first sensing hole (144). The sensor receiving portion (156) can be in close contact with the extension plate (141) around the first sensing hole (144). The second sensing hole (1564) formed in the sensor receiving portion (156) can be in communication with the first sensing hole (144). The sensor receiving portion (156) can be in close contact with the air flow sensor (161) while surrounding it. Accordingly, it is possible to prevent a failure of the substrate or sensor due to foreign substances or aerosol discharged around the opening of the pipe (130) or foreign substances entering through the first sensing hole (144).

[0166] In one embodiment, the conductive member (250) may be provided on one side of the chamber (C1). For example, the conductive member (250) may be placed on one side (311) of a cartridge (300) constituting the chamber (C1). The one side (311) of the cartridge (300) may be a side facing the partition (125) of the main body (100).

[0167] In one embodiment, the level sensor (260) can detect the amount of liquid aerosol generating material stored in the chamber (C1). The level sensor (260) can apply current to the conductive member (250) and measure a resistance value that varies depending on the amount of liquid aerosol generating material.

[0168] In one embodiment, the conductive member (250) may be connected in series or in parallel with the liquid aerosol generating material stored in the chamber (C1). A surface (e.g., one side surface (311)) constituting the chamber (C1) may be formed of an electrically conductive material. For example, the chamber (C1) may be formed of a conductive material having relatively lower conductivity than the conductive member (250). Alternatively, for example, the chamber (C1) may be formed of a conductive resin, a conductive polymer material, or a conductive organic chemical.

[0169] In one embodiment, when the volume of the liquid aerosol generating material stored in the chamber (C1) changes, the total resistance value of the conductive member (250) and the chamber (C1) may change.

[0170] For example, if the capacity of the liquid aerosol generating material inside the chamber (C1) changes, the voltage applied to the conductive member (250) may change in a situation where the same current is applied. Or, for example, if the capacity of the liquid aerosol generating material inside the chamber (C1) changes, the current flowing to the conductive member (250) may change in a situation where the same voltage is applied.

[0171] In one embodiment, the level sensor (260) can measure a change in resistance of the conductive member (250) and the chamber (C1) by passing a current through the conductive member (250), and detect a change in the capacity or volume of a liquid aerosol generating substance stored in the chamber (C1).

[0172] In one embodiment of the present document, the level sensor (260) can detect a change in the volume of a liquid aerosol generating substance inside the chamber (C1) by using a conductive member (250), and the detection accuracy of the level sensor (260) can be improved.

[0173] For example, the dielectric constant of a liquid aerosol generating substance may change depending on various factors such as the raw material, concentration, and composition ratio of the liquid aerosol generating substance. If the cartridge (300) is replaced and the dielectric constant of the liquid aerosol generating substance changes, an error may occur in the capacity measurement of the liquid aerosol generating substance by the level sensor (260).

[0174] In one embodiment of the present document, the conductive member (250) is arranged to be in direct contact with one surface of the chamber (C1), thereby being able to sensitively react to changes in the capacity of the liquid aerosol generating material. The level sensor (260) can measure changes in the capacity of the liquid aerosol generating material inside the chamber (C1) by applying current or voltage to the conductive member (250) and measuring changes in resistance of the conductive member (250) and the entire chamber (C1), thereby reducing errors in the level sensor (260) and improving accuracy. In addition, since the aerosol generating device (50) according to one embodiment of the present document can be easily implemented by arranging the conductive member (250) and the level sensor (260), the manufacturing efficiency of the aerosol generating device (50) can be improved.

[0175] In one embodiment, the level sensor (260) can transmit the detection result to at least one processor (e.g., the control unit (12) of FIG. 1). The at least one processor can control the operation of the aerosol generating device (50) based on the detection result transmitted from the level sensor (260).

[0176] For example, at least one processor may transmit information about the remaining amount of liquid aerosol generating material stored in the chamber (C1) to the user via an output (e.g., output (14) of FIG. 1) or a display (e.g., display (14a) of FIG. 1 or display (243) of FIGS. 2 and 3).

[0177] In one embodiment, the level sensor (260) may include electrode units (261, 262). The electrode units (261, 262) may be arranged opposite the conductive member (250). The conductive member (250) may be electrically connected to or in contact with the electrode units (261, 262) of the level sensor (260).

[0178] In one embodiment, the electrode unit (261, 262) may include a first electrode (261) and a second electrode (262). The first electrode (261) and the second electrode (262) may be spaced apart from each other and may contact two portions of the conductive member (250), respectively.

[0179] However, the structure and contact method of the electrode unit (261, 262) and the conductive member (250) are not limited to the structure of the drawing, and the arrangement, structure and quantity of the electrode unit (261, 262) can also be implemented in various ways corresponding to the arrangement, structure and quantity of the conductive member (250).

[0180] In one embodiment, the conductive member (250) may be formed in a bar shape extending along the direction in which the chamber (C1) extends (e.g., the Z-axis direction). Accordingly, the level sensor (260) can effectively detect a change in resistance of the conductive member (250) and the entire chamber (C1) according to a change in the capacity of the liquid aerosol generating substance in the chamber (C1).

[0181] In one embodiment, the conductive member (250) may be coupled to the chamber (C1) in a structure that protrudes from one side surface (311) of the chamber (C1). By having the conductive member (250) protruding, the volume of the chamber (C1) can be maintained, and since a separate coupling structure is not required, the efficiency in manufacturing the aerosol generating device (50) including the conductive member (250) and the level sensor (260) can be improved.

[0182] Hereinafter, cartridges (300) including a conductive member (250) according to various embodiments of the present document are exemplarily described. However, these are merely examples, and the arrangement, shape, quantity, and structure of the conductive member (250) and cartridge (300) are not limited thereto.

[0183] FIG. 7a is a perspective view of a cartridge (300a) of an aerosol generating device (50) according to one embodiment.

[0184] Referring to FIG. 7a, a cartridge (300a) according to one embodiment (e.g., cartridge (300) of FIGS. 3, 4, 5, and 6) may include a conductive member (250a) (e.g., conductive member (250) of FIGS. 4, 5, and 6).

[0185] Hereinafter, any content that overlaps with the above-described content will be omitted for explanation, and it will be understood that some configurations and structures of the cartridge (300a) and the aerosol generating device (50) including the same may be replaced, added, or omitted within a range easily understandable to those skilled in the art by referring to the drawings and descriptions below. In addition, at least one configuration or feature of the above-described embodiments may be combined with the cartridge (300a) and the aerosol generating device (50) including the same, unless it is technically clearly impossible.

[0186] In one embodiment, the conductive member (250a) may include a first conductive region (251) and a second conductive region (252). The first conductive region (251) and the second conductive region (252) may be spaced apart from each other and disposed on one side (311) of the cartridge (300a).

[0187] In one embodiment, at least one processor (e.g., the control unit (12) of FIG. 1) may receive detection results for each of the first conductive region (251) and the second conductive region (252), and use the same to correct the detection results of the level sensor (260). The first conductive region (251) and the second conductive region (252) may reduce errors in the detection results of the level sensor (260) and improve accuracy.

[0188] For example, at least one processor may correct the detection result of the level sensor (260) by an average value of the detection results for each of the first conductive region (251) and the second conductive region (252). Alternatively, without limitation thereto, at least one processor may correct the detection result of the level sensor (260) by comparing two detection results in various ways.

[0189] In one embodiment, the first conductive region (251) and the second conductive region (252) may be arranged parallel to each other. Each of the first conductive region (251) and the second conductive region (252) may be formed in a rod shape extending along the direction in which the chamber (C1) extends.

[0190] In one embodiment, the first conductive region (251) and the second conductive region (252) may be formed of the same shape, thickness, length, and material. Since the two conductive regions (the first conductive region (251) and the second conductive region (252)) have the same conditions, at least one processor can correct the detection result of the level sensor (260) through a simple and easy correction procedure.

[0191] In one embodiment, the first conductive region (251) and the second conductive region (252) are configured to have at least one different shape, thickness, length, and material to provide mutually different detection results, thereby reducing errors that may occur equally when two conductive regions (e.g., the first conductive region (251) and the second conductive region (252)) have the same conditions, and helping to correct the detection results of the level sensor (260).

[0192] FIG. 7b is a perspective view of a cartridge (300b) of an aerosol generating device (50) according to one embodiment.

[0193] Referring to FIG. 7b, a cartridge (300b) according to one embodiment (e.g., cartridge (300) of FIGS. 3, 4, 5, and 6) may include a conductive member (250b) (e.g., conductive member (250) of FIGS. 4, 5, and 6).

[0194] Hereinafter, any content that overlaps with the above-described content will be omitted for explanation, and it will be understood that some configurations and structures of the cartridge (300b) and the aerosol generating device (50) including the same may be replaced, added, or omitted within a range easily understandable to those skilled in the art by referring to the drawings and descriptions below. In addition, at least one configuration or feature of the above-described embodiments may be combined with the cartridge (300b) and the aerosol generating device (50) including the same, unless it is technically clearly impossible.

[0195] In one embodiment, the conductive member (250b) may include a first conductive region (251), a second conductive region (252), and an insulating region (253). The first conductive region (251) and the second conductive region (252) may be spaced apart from each other and disposed on one side (311) of the cartridge (300b).

[0196] In one embodiment, at least one processor (e.g., the control unit (12) of FIG. 1) may receive detection results for each of the first conductive region (251) and the second conductive region (252), and use the same to correct the detection results of the level sensor (260). The first conductive region (251) and the second conductive region (252) may reduce errors in the detection results of the level sensor (260) and improve accuracy.

[0197] For example, at least one processor may correct the detection result of the level sensor (260) by an average value of the detection results for each of the first conductive region (251) and the second conductive region (252). Alternatively, without limitation thereto, at least one processor may correct the detection result of the level sensor (260) by comparing two detection results in various ways.

[0198] In one embodiment, the first conductive region (251) and the second conductive region (252) may be arranged parallel to each other. Each of the first conductive region (251) and the second conductive region (252) may be formed in a rod shape extending along the direction in which the chamber (C1) extends.

[0199] In one embodiment, the first conductive region (251) and the second conductive region (252) may be formed of the same shape, thickness, length, and material. Since the two conductive regions (e.g., the first conductive region (251) and the second conductive region (252)) have the same conditions, at least one processor can correct the detection result of the level sensor (260) through a simple and easy correction procedure.

[0200] In one embodiment, the first conductive region (251) and the second conductive region (252) are configured to have at least one different shape, thickness, length, and material to provide mutually different detection results, thereby reducing errors that may occur equally when two conductive regions (e.g., the first conductive region (251) and the second conductive region (252)) have the same conditions, and helping to correct the detection results of the level sensor (260).

[0201] In one embodiment, an insulating region (253) may be provided between the first conductive region (251) and the second conductive region (252). The insulating region (253) may be made of a non-conductive material. The insulating region (253) may reduce or prevent electrical and / or electromagnetic interference between the first conductive region (251) and the second conductive region (252). The insulating region (253) may improve the accuracy of the detection result of the level sensor (260) by reducing or preventing the first conductive region (251) and the second conductive region (252) from mutually affecting each other.

[0202] FIG. 7c is a perspective view of a cartridge (300c) of an aerosol generating device (50) according to one embodiment.

[0203] Referring to FIG. 7c, a cartridge (300c) according to one embodiment (e.g., cartridge (300) of FIGS. 3, 4, 5, and 6) may include a conductive member (250c) (e.g., conductive member (250) of FIGS. 4, 5, and 6).

[0204] Hereinafter, any content that overlaps with the above-described content will be omitted for explanation, and it will be understood that some configurations and structures of the cartridge (300c) and the aerosol generating device (50) including the same may be replaced, added, or omitted within a range easily understandable to those skilled in the art by referring to the drawings and descriptions below. In addition, at least one configuration or feature of the embodiments described above may be combined with the cartridge (300c) and the aerosol generating device (50) including the same, unless it is technically clearly impossible.

[0205] In one embodiment, the conductive member (250c) may be formed in a shape that is bent and extended at least once along the direction in which the chamber (C1) extends. For example, the conductive member (250c) may extend in a zigzag shape along one side (311) of the cartridge (300c). Alternatively, although not shown in the drawing, the conductive member (250c) may have a shape that is bent at least once. Alternatively, the conductive member (250c) may have a semicircular, circular, elliptical, or spiral shape.

[0206] In one embodiment, the conductive member (250c) is formed in a curved or bent structure, thereby increasing the area in contact with the chamber (C1), reacting more sensitively to changes in the capacity of the liquid aerosol generating material, and improving the accuracy of the detection result of the level sensor (260).

[0207] FIG. 7d is a perspective view of a cartridge (300d) of an aerosol generating device (50) according to one embodiment.

[0208] Referring to FIG. 7d, a cartridge (300d) according to one embodiment (e.g., cartridge (300) of FIGS. 3, 4, 5, and 6) may include a groove region (311a) and a conductive member (250d) (e.g., conductive member (250) of FIGS. 4, 5, and 6).

[0209] Hereinafter, any content that overlaps with the above-described content will be omitted for explanation, and it will be understood that some configurations and structures of the cartridge (300d) and the aerosol generating device (50) including the same may be replaced, added, or omitted within a range easily understandable to those skilled in the art by referring to the drawings and descriptions below. In addition, at least one configuration or feature of the embodiments described above may be combined with the cartridge (300d) and the aerosol generating device (50) including the same, unless it is technically clearly impossible.

[0210] In one embodiment, a groove area (311a) may be formed on one side surface (311) of a cartridge (300d). The groove area (311a) may have a structure that is recessed in a direction facing the inside of the chamber (C1) from the one side surface (311). The groove area (311a) may accommodate at least a portion of the conductive member (250d).

[0211] In one embodiment, the conductive member (250d) may be disposed within the groove region (311a). For example, one surface of the chamber (C1) and the conductive member (250d) may form a substantially flat surface. By disposing the conductive member (250d) within the groove region (311a), the bonding stability of the conductive member (250d) can be provided, the area in contact with the chamber (C1) can be increased, the capacity of the liquid aerosol generating substance can be more sensitively reacted to, and the accuracy of the detection result of the level sensor (260) can be improved.

[0212] 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.

[0213] For example, it means that a configuration A described in a particular embodiment and / or drawing can be combined with a configuration B described in another embodiment and / or drawing. That is, even if a combination between configurations is not directly described, it means that a combination is possible, except in cases where a combination is described as impossible.

[0214] 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. In the aerosol generating device, A chamber for storing a liquid aerosol generating substance; A body including a bulkhead facing the chamber; A conductive member provided on one side of the chamber facing the bulkhead; and A level sensor is included for detecting the amount of the liquid aerosol generating substance stored in the chamber, The above level sensor, An aerosol generating device that detects the amount of the liquid aerosol generating substance by applying a current to the conductive member and measuring a voltage value that varies according to the capacity of the liquid aerosol generating substance.

2. In paragraph 1, The above level sensor, An aerosol generating device comprising an electrode unit disposed opposite the conductive member and applying current to the conductive member.

3. In paragraph 1, The above conductive member is, An aerosol generating device having a bar shape extending along the direction in which the chamber extends.

4. In paragraph 1, The above conductive member is, An aerosol generating device comprising a first conductive region and a second conductive region which are spaced apart from each other.

5. In paragraph 4, An aerosol generating device, wherein the first conductive region and the second conductive region are arranged parallel to each other.

6. In paragraph 4, An aerosol generating device wherein the first conductive region and the second conductive region have the same shape.

7. In paragraph 4, The aerosol generating device further includes at least one processor that receives a detection result from the level sensor and controls the operation of the aerosol generating device. At least one processor, An aerosol generating device that receives detection results for each of the first conductive area and the second conductive area and corrects the detection results of the level sensor.

8. In paragraph 7, At least one processor, An aerosol generating device that corrects the detection results of the level sensor by an average value of the detection results for each of the first conductive area and the second conductive area.

9. In paragraph 4, The above conductive member is, An aerosol generating device further comprising an insulating region provided between the first conductive region and the second conductive region.

10. In paragraph 1, The above conductive member is, An aerosol generating device having a shape that is bent and extended at least once along the direction in which the chamber extends.

11. In paragraph 1, The above conductive member is, An aerosol generating device coupled to the chamber with a structure protruding from the above-mentioned one surface of the chamber.

12. In paragraph 1, The above chamber, An aerosol generating device comprising a groove region formed on one surface to which the conductive member is coupled and configured to accommodate the conductive member.

13. In paragraph 12, The above conductive member is, An aerosol generating device, wherein the one side of the chamber and the conductive member are positioned within the groove area to form a flat surface.

14. In paragraph 1, The above chamber, An aerosol generating device comprising a conductive resin, a conductive polymer material or a conductive organic chemical.

15. In paragraph 1, The above chamber, An aerosol generating device made of a conductive material having relatively lower conductivity than the conductive member.

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