Abstract: As an embodiment of the present disclosure, there is disclosed an aerosol generating device including: a heater configured to generate an aerosol by heating an aerosol generating substrate; a storage unit configured to store information regarding a first time period and a second time period for controlling a temperature of the heater; and a controller configured to control power supplied to the heater, wherein the controller, when the first time period time elapses after the temperature of the heater reaches the first target temperature, changes the temperature of the heater to a second target temperature for the second time period, and the sum of the first time period and the second time period is a time period in a preset change.

Abstract: Provided herein is an aerosol generation device with a reduced preheating time. The aerosol generation device according to some embodiments of the present disclosure includes a case including an opening formed in one surface, and an article insertion portion into which an aerosol-generating article including an aerosol-generating substrate is inserted, an opening/closing type cover which is disposed on the one surface of the case to open and close the opening, and a heater configured to heat the inserted aerosol-generating article. Here, the opening/closing type cover is configured to, when closing the opening, mechanically press an aerosol-generating substrate portion of the inserted aerosol-generating article so that the entire aerosol-generating substrate portion is rapidly heated, and in this way, a preheating time of the device may be reduced.

Abstract: An aerosol generating device according to an embodiment includes a heater configured to heat an aerosol generating article accommodated in an accommodation space of the aerosol generating device, a battery configured to supply power to the heater, a temperature sensor configured to measure a temperature of the aerosol generating article, and a processor configured to control power supplied to the heater from the battery according to a preset temperature profile including a preheating period and a heating period, wherein the processor is further configured to detect whether an amount of moisture in the aerosol generating article is in a preset range based on the temperature of the aerosol generating article in the preheating period, and control a duration of the preheating period according to whether the amount of moisture in the aerosol generating article is included in the preset range.

Abstract: An aerosol generating method is provided. The aerosol generating method includes obtaining unique information of a cartridge from a tag of the cartridge connected to the electronic device, using short-range wireless communication, performing authentication of the cartridge based on the unique information of the cartridge, and when the cartridge is authenticated, generating an aerosol by vibrating an aerosol generating material included in the cartridge based on information on a natural vibration frequency of a vibrator included in the cartridge which is obtained from the tag.

Abstract: The aerosol generating device includes a housing, a mouth side end, at least one cartridge configured to store an aerosol forming substrate, and an aerosol generator connected to the cartridge and configured to generate an aerosol, wherein the aerosol generator includes a substrate including a plate shape, at least one transducer disposed on the substrate, and an atomization region on a surface of the substrate, in which an aerosol is generated, wherein the substrate is disposed in the housing to form an acute angle with respect to a central axis that is parallel to a longitudinal direction of the housing, and the transducer is configured to convert an electrical signal into a surface acoustic wave (SAW), and the SAW is transferred to the atomization region through the substrate to aerosolize the aerosol forming substrate.

Abstract: Provided is an aerosol generating device which determines a type of a liquid included in a cartridge, transmits a signal identifying the type of the liquid to a terminal, receives a control signal including information about the liquid from the terminal, controls an operation of the electronic device based on the control signal, and transmits an inhalation completion notification to the terminal.

Abstract: An aerosol generating device includes a main body including a cartridge fastening area, a cartridge detachably fastened to the cartridge fastening area, and a temperature sensor positioned to face the cartridge fastening area in the main body and including an infrared sensor, wherein the cartridge includes a reservoir configured to store an aerosol generating material, a transmission member configured to receive the aerosol generating material from the reservoir, a vibrator assembly configured to atomize the aerosol generating material by vibrating the transmission member, a housing configured to accommodate the reservoir, the transmission member, and the vibrator assembly and including a sensor hole formed at a position opposite to the temperature sensor, and a lens positioned between the sensor hole and the temperature sensor.

Abstract: A method of determining a temperature of a vibrator included in a cartridge, includes: when the vibrator of the cartridge is coupled to a driving circuit of the electronic device, supplying a signal to the driving circuit; determining a phase difference between a current and a voltage between both ends of the vibrator and a shunt resistor; determining a reactance component of the vibrator based on a resistance value of the shunt resistor and the phase difference; and determining a temperature of the vibrator based on the reactance component.

Abstract: A cartridge for an aerosol generating device includes a reservoir configured to store an aerosol generating material, a wick configured to receive the aerosol generating material from the reservoir, a vibrator configured to vibrate the wick to atomize the aerosol generating material, and a reinforcing member including an atomization space communicating with the wick, wherein the reinforcing member includes a first opening that communicates with the atomization space, and a pressing surface configured to press the wick while contacting a partial area of the wick.

Abstract: A method of controlling an electronic device includes determining whether a vibrator of a cartridge unit is connected to a driving circuit of the electronic device, determining a natural frequency of the vibrator connected to the driving circuit, and controlling a connection method of connecting one or more capacitors each connected in parallel with the vibrator based on the determined natural frequency is disclosed.

Abstract: According to an example embodiment, a drive circuit for supplying power to a vibrator includes one or more capacitors connected in parallel, an inductor connected to a first electrical contact point, a switch having a drain terminal connected to the first electrical contact point, a first power source configured to provide a voltage to a gate terminal of the switch, a second power source configured to provide a voltage to a second end of the inductor, and a resistor connected between the gate terminal of the switch and the ground.

Abstract: A cartridge for an aerosol generating device includes a reservoir configured to store an aerosol generating material, and a vibrator configured to generate vibration to atomize the aerosol generating material, wherein the vibrator may include a body configured to generate vibration, an electrode layer stacked on at least one surface of the body, and a coating layer stacked in a partial area of the electrode layer and formed of a light absorbing material.

Abstract: A driving circuit according to an example has a form of a full bridge including four switches, and the driving circuit includes a first alternating current power supply that provides a voltage to a gate terminal of a first switch and a gate terminal of a fourth switch, a second alternating current power supply that provides a voltage to a gate terminal of a second switch and a gate terminal of a third switch, and a direct current power supply that provides a direct current voltage to a drain terminal of the first switch and a drain terminal of the third switch.

Abstract: The present disclosure relates to a heating assembly including an accommodating unit configured to accommodate an aerosol generating article heatable by an induced magnetic field, a spiral coil arranged outside the accommodating unit and configured to generate an induced magnetic field toward the accommodating unit, and a first supporter arranged at a side in the accommodating unit, supporting an outer surface of the aerosol generating article, and separating the outer surface of the aerosol generating article accommodated in the accommodating unit from an inner wall of the accommodating unit, wherein the spiral coil is wound to form a plate shape covering a portion of an outer wall of the accommodating unit, and a center around which the spiral coil is wound is arranged at a point of the outer wall of the accommodating unit.

Abstract: Provided herein is an ultrasonic-based aerosol generation device. The aerosol generation device according to some embodiments of the present disclosure includes a liquid reservoir configured to store an aerosol-forming substrate in a liquid state, a wick configured to absorb the stored aerosol-forming substrate, an ultrasonic vibrator configured to vaporize the absorbed aerosol-forming substrate through ultrasonic waves to generate an aerosol, and a controller configured to control the ultrasonic vibrator. Here, at least a portion of the wick and at least a portion of the ultrasonic vibrator may be implemented to have a flat shape and may be disposed to come in close contact with each other. In this way, a vaporization area may be maximized, and vapor production may be significantly enhanced.

Abstract: A heat insulation material for an aerosol generating device includes a plurality of hollow beads, and a binder configured to bind the plurality of hollow beads together.

Abstract: A vaporizer and an aerosol-generating device including the vaporizer are provided. The vaporizer includes a liquid storage tank configured to store a liquid aerosol-generating material, and a wick-heater assembly including a porous wick that absorbs the stored aerosol-generating material through a porous body and a heater assembly that generates an aerosol by heating the absorbed aerosol-generating material.

Abstract: The present invention relates to a wick-heater assembly comprising a porous wick for absorbing a liquid aerosol-generating substrate, wherein the porous wick comprises a plurality of porous beads; and a heater for heating the absorbed liquid aerosol-generating substrate to generate an aerosol, wherein the heater is located embedded in one side of the porous wick or in the porous wick, and comprises a flat heating pattern in which a horizontal pattern and a vertical pattern are alternately repeated and connected, and wherein the spacing (A) between the vertical patterns in the heating pattern is greater than the diameter (B) of the porous bead; and an aerosol-generating device comprising the same.

Abstract: As an embodiment of the present disclosure, there is disclosed an aerosol generating device including: a heater configured to generate an aerosol by heating an aerosol generating substrate; a storage unit configured to store information regarding a first time period and a second time period for controlling a temperature of the heater; and a controller configured to control power supplied to the heater, wherein the controller, when the first time period time elapses after the temperature of the heater reaches the first target temperature, changes the temperature of the heater to a second target temperature for the second time period, and the sum of the first time period and the second time period is a time period in a preset change.

Abstract: An aerosol-generating device may include an accommodation space where an aerosol-generating article is accommodated, a heater configured to generate aerosol by heating the aerosol-generating article, a transducer configured to output ultrasonic waves toward the accommodation space, receive ultrasonic waves reflected from the accommodation space, and generate electric signals corresponding to the received ultrasonic waves, and a processor configured to determine a type of the aerosol-generating article accommodated in the accommodation space based on the electric signals generated by the transducer, and control an operation of the heater based on the determined type of the aerosol-generating article.