Abstract: An aerosol-generating device and an operation method thereof are disclosed. The aerosol-generating device of the disclosure includes a display, a button, and a controller. Upon receiving first input through the button while a screen indicating a first state among a plurality of states is displayed, the controller changes the screen indicating the first state to a screen indicating a second state. Upon receiving second input, which is different from the first input, through the button while the screen indicating the first state is displayed, the controller changes the screen indicating the first state to a setting screen related to the first state. Upon receiving input through the button while the setting screen related to the first state is displayed, the controller updates settings related to the first state. The controller changes the setting screen related to the first state to the screen indicating the first state in response to update.

Abstract: An aerosol-generating device is disclosed. The aerosol-generating device of the present disclosure includes a cartridge, which includes an inner wall defining an insertion space into which a stick is inserted and a chamber formed between the inner wall and an outer wall to store an aerosol-generating substance, a wick, which is disposed adjacent to one end of the insertion space, which is elongated so as to be connected to the chamber, and which has formed therein a hollow portion, a heater, which is configured to heat the wick, and a probe member, which is elongated such that at least a portion thereof is disposed in the insertion space. When the stick is inserted into the insertion space, the at least the portion of the probe member is inserted into the stick.

Abstract: An aerosol generating device is provided. The aerosol generating device includes: a pipe shaped to include an insertion space; a heater having a cylindrical shape that surrounds the insertion space; and an induction coil positioned relative to the heater and being configured to cause the heater to generate heat in accordance with current flowing through the induction coil.

Abstract: An aerosol-generating device is disclosed. The aerosol-generating device includes a container having a first passage; a container head, which is disposed on the container and has a first outlet at a bottom surface to communicate with the first passage; a mouthpiece, which is pivotably connected to the container head and has a second passage; and a sealing cap projecting outwards from the mouthpiece, wherein the sealing cap closes the first outlet when the mouthpiece is pivoted to a first position, and the sealing cap opens the first outlet to allow the first outlet to communicate with the second passage when the mouthpiece is pivoted to a second position.

Abstract: An aerosol-generating device including a wick configured to absorb an aerosol-generating substance, a heater configured to heat the wick, a sensor configured to sense a puff, and a controller. The controller performs control to heat the heater while puffs are sensed, and detects the temperature of the heater. Based on the temperature of the heater being equal to or higher than a predetermined threshold temperature, the controller interrupts the supply of power to the heater. Based on the temperature of the heater being lower than the threshold temperature, the controller determines whether it is necessary to change the threshold temperature. Based on a need to change the threshold temperature, the controller changes the threshold temperature based on the detected temperature of the heater.

Abstract: An aerosol-generating device is disclosed. The aerosol-generating device of the disclosure includes a housing having an insertion space defined therein, a capacitance sensor configured to output a signal corresponding to the insertion space, a memory storing a plurality of temperature profiles, a heater configured to heat a stick inserted into the insertion space, and a controller. The controller determines the amount of moisture contained in the stick based on a signal received from the capacitance sensor, and determines a target temperature of the heater based on a temperature profile corresponding to the determined amount of moisture. In at least part of a predetermined initial heating period, a first target temperature based on a first temperature profile corresponding to a first moisture amount exceeds a second target temperature based on a second temperature profile corresponding to a second moisture amount, which is larger than the first moisture amount.

Abstract: An aerosol-generating device is disclosed. The aerosol-generating device includes a cartridge having an inlet formed at a lower portion thereof; a housing, which has a reception space into which the cartridge is inserted; a base having a bottom surface and an inner circumferential surface, which surround a lower portion of the reception space, wherein the inner circumferential surface has a sensing hole; a flow sensor, which is disposed inside the housing, and is connected to the reception space through the sensing hole to detect air that flows toward the inlet from the base; and a flow guide, which projects upwards from the bottom surface of the base to surround the inlet, and is open toward the sensing hole.

Abstract: A cartridge and an aerosol generating device including the same are provided. The cartridge includes: a container shaped to define a first chamber structured to store a liquid; a frame shaped to define a second chamber through which air passes; a plate positioned between the container and the frame and separating the first chamber from the second chamber, wherein the plate is shaped to define a first liquid inlet hole to permit communication between the first chamber and the second chamber; a wick disposed at the second chamber and being in communication with the first chamber through the first liquid inlet hole; a heater configured to heat the wick; and a needle protruding from the plate into the first chamber, wherein the needle gradually narrows as a distance from the plate increases.

Abstract: An aerosol-generating device is disclosed. The aerosol-generating device of the disclosure includes a pipe having an insertion space defined therein that is elongated along a longitudinal direction; a substrate configured to cover an outer wall of a side of the pipe; and a coupler configured to couple the pipe and the substrate to each other.

Abstract: An aerosol generating device is provided. The aerosol generating device includes: a body comprising an insertion space; a heater assembly having thermal conductivity and configured to heat the insertion space; a first board installed at the body; and a bridge electrically connecting the heater assembly and the first board, wherein a temperature coefficient of resistance of the bridge is lower than a temperature coefficient of resistance of the heater assembly.

Abstract: An aerosol-generating device is disclosed. The aerosol-generating device of the disclosure includes a housing having an insertion space, a heater configured to heat a stick inserted into the insertion space, at least one sensor configured to output a signal corresponding to the insertion space, a power circuit electrically connected to the heater to transmit power to the heater, and a signal circuit electrically connected to the sensor to transmit a signal corresponding to the sensor. The power circuit includes a low-pass filter.

Abstract: A cartridge and an aerosol-generating device including the same are disclosed. The cartridge of the disclosure includes a first chamber configured to store liquid; a second chamber configured to allow air to pass therethrough; a wick extending across the second chamber and configured to receive the liquid from the first chamber; and a heating coil configured to heat the wick, wherein the wick is a silica wick, and wherein the heating coil has an electrical resistance in a range of 1.0 ohm to 1.3 ohms.

Abstract: An aerosol-generating device is disclosed. The aerosol-generating device of the disclosure includes an upper body havin gan insertion space defined therein; a heater configured to heat the insertion space; and a seal coupled to the upper body, wherein the seal is elastic and has a portion in contact with the upper body, and wherein the portion of the seal in contact with the upper body and the upper body are integrally formed with each other and have a boundary therebetween.

Abstract: An aerosol-generating device and an operation method thereof are disclosed. The aerosol-generating device of the disclosure includes a main body, a cartridge coupled to the main body, a puff sensor configured to detect a puff, and a controller. The cartridge includes a heater configured to heat an aerosol-generating substance and a memory storing data. The controller determines whether predetermined requirements for the cartridge are satisfied based on the data stored in the memory, performs control such that power is supplied to the heater based on the data stored in the memory when the predetermined requirements are satisfied, and processes the data stored in the memory so that the predetermined requirements are not satisfied when the number of times a puff is detected by the puff sensor exceeds a predetermined number of times.

Abstract: An aerosol-generating device is disclosed. The aerosol-generating device of the disclosure includes a body shaped to define an elongated insertion space that is open to an outside; a button positioned relative to a side of the body; a substrate disposed in the body and facing the button; an actuator disposed between the substrate and the button to provide elastic force relative to the button; and a light source coupled to the substrate, adjacent to the button, wherein the light source is configured to emit light in a direction parallel to the button and the substrate.

Abstract: An aerosol-generating device is disclosed. The aerosol-generating device of the disclosure includes a cartridge having therein a chamber storing liquid, a first heater for heating the liquid, a housing having an insertion space defined therein, a second heater for heating a stick inserted into the insertion space, a memory for storing a plurality of liquid temperature profiles corresponding to the first heater and a plurality of stick temperature profiles corresponding to the second heater, and a controller for setting one of a plurality of modes to an operation mode of the aerosol-generating device. The controller determines a target temperature for the first heater based on a liquid temperature profile corresponding to the operation mode among the plurality of liquid temperature profiles, and determines a target temperature for the second heater based on a stick temperature profile corresponding to the operation mode among the plurality of stick temperature profiles.

Abstract: An aerosol-generating device is disclosed. The aerosol-generating device of the disclosure includes a heater configured to heat an aerosol-generating substance, a battery configured to supply power to the heater, a protection circuit module electrically connected to the battery, and a controller. The controller determines a type of battery based on a signal corresponding to the battery transmitted from the protection circuit module, and sets any one of a plurality of modes to an operation mode based on the determined type of battery.

Abstract: An aerosol-generating device and an operation method thereof are disclosed. The aerosol-generating device of the disclosure includes an insertion space, a first sensor outputting a signal corresponding to the insertion space, a heater for heating a stick, a second sensor outputting a signal corresponding to the temperature of the heater, and a controller. The controller performs control such that power is supplied to the heater based on determination as to insertion of the stick using the first sensor. In each of a plurality of periods in which power is supplied to the heater, the controller determines whether the stick is present based on conditions related to the temperature of the heater corresponding, respectively, to the periods. Upon determining that the stick is not present, the controller performs control such that supply of power to the heater is interrupted. The conditions corresponding, respectively, to the periods differ from each other.

Abstract: An aerosol generating device is provided. The aerosol generating device includes: a body shaped to define an insertion space; a cartridge shaped to be coupled to the body; an exhaust port protruding from the cartridge and shaped to define an outlet; a connection passage extending from the insertion space and being sized to receive a portion of the exhaust port, wherein the connection passage permits communication between the insertion space and the exhaust port; and a backflow prevention membrane positioned to cover a portion of the connection passage and being structured to be deformed according to contact with the exhaust port in an insertion direction of the exhaust port.

Abstract: An aerosol-generating device and an operation method thereof are disclosed. The aerosol-generating device of the disclosure includes a heater configured to heat an aerosol-generating substance, a battery configured to supply power to the heater, a resistance detection sensor configured to output a signal corresponding to the resistance of the heater, a switching element electrically connected to the heater, and a controller configured to control operation of the switching element. The controller performs control such that the switching element is turned on in a first period in which power is supplied to the heater, determines a duty ratio based on the resistance of the heater corresponding to a signal from the resistance detection sensor in the first period, and adjusts switching operation of the switching element based on the determined duty ratio in a second period after the first period in which power is supplied to the heater.