公开(公告)号：US20240215654A1

公开(公告)日：2024-07-04

申请号：US18604912

申请日：2024-03-14

Applicant: KT&G CORPORATION

Inventor： Jae Min LEE

IPC: A24F40/57 ,  G05D23/19

CPC classification number: A24F40/57 ,  G05D23/1917

Abstract: Disclosed is an aerosol generating device including a heater that heats an aerosol generating material and a controller that controls power to be supplied to the heater. The controller calculates a first power amount indicating a power amount used by the heater during a preset first time period after a heating operation of the heater is started, and controls the heating operation of the heater based on whether the first power amount is greater than or equal to a preset reference power amount.

公开(公告)号：US20230112360A1

公开(公告)日：2023-04-13

申请号：US16978090

申请日：2020-05-19

Applicant: KT&G CORPORATION

Inventor： Jae Min LEE ,  Sang Kyu PARK ,  Hwi Kyeong AN ,  Seung Won LEE ,  Soung Ho JU

IPC: A24F40/465 ,  A24F40/20 ,  H05B6/36 ,  H05B6/10

Abstract: An aerosol generating device includes an accommodation space in a cylindrical shape for accommodating a cigarette, an induction coil wound along an outer surface of the accommodation space, a power supply for supplying electric power to the induction coil, a controller for controlling electric power supplied to the induction coil, and a shield film including a ferromagnetic material for shielding electromagnetic interference from electromagnetic waves emitted from the induction coil. The shield film surrounds only a portion of an outer surface of the induction coil to shield the electromagnetic interference from the electromagnetic waves having a frequency that does not exceed 500 kHz.

公开(公告)号：US20210137169A1

公开(公告)日：2021-05-13

申请号：US17057245

申请日：2019-10-23

Applicant: KT&G CORPORATION

Inventor： Jae Min LEE

IPC: A24F40/57

Abstract: According to an embodiment of the present disclosure, an aerosol generating apparatus includes a heater for generating an aerosol by heating an aerosol generating material; and a controller for controlling electric power supplied to the heater. The controller controls a frequency of an electric power signal to be changed over time within a certain range when the frequency of the electric power signal supplied to the heater is lower than or equal to a preset frequency.

公开(公告)号：US20240237750A1

公开(公告)日：2024-07-18

申请号：US17928225

申请日：2022-08-08

Applicant: KT&G CORPORATION

Inventor： Jae Min LEE ,  Sang Kyu PARK

IPC: A24F40/51 ,  A24F40/20 ,  A24F40/465 ,  A24F40/65

CPC classification number: A24F40/51 ,  A24F40/465 ,  A24F40/20 ,  A24F40/65

Abstract: An aerosol generating device includes a housing including an accommodation space for receiving an aerosol generating article, a heater configured to heat the aerosol generating article inserted into the accommodation space to generate an aerosol, a sensor configured to generate a sensing signal corresponding to a change in capacitance of the accommodation space, and a processor electrically connected to the heater and the sensor, wherein the sensor includes a printed circuit board disposed to surround at least a part of an outer circumferential surface of the accommodation space, an electrode disposed on one region of the printed circuit board and configured to generate the sensing signal corresponding to the change in capacitance of the accommodation space, and ground disposed in another region of the printed circuit board located in a direction opposite to the one region, and the electrode being electrically connected to the ground to shield noise.

公开(公告)号：US20240215652A1

公开(公告)日：2024-07-04

申请号：US17912991

申请日：2022-08-08

Applicant: KT&G CORPORATION

Inventor： Jae Min LEE

IPC: A24F40/57 ,  A24F40/51 ,  A24F40/53 ,  G01N27/22

CPC classification number: A24F40/57 ,  A24F40/51 ,  A24F40/53 ,  G01N27/223

Abstract: An aerosol generating device may include a heater configured to heat an aerosol generating article, a sensor configured to output a signal indicating a change in capacitance which occurs by insertion of the aerosol generating article, and a processor electrically connected to the heater and configured to set a preheating temperature profile for the heater on the basis of the signal output from the sensor, and supply power to the heater according to the set preheating temperature profile.

公开(公告)号：US20230148669A1

公开(公告)日：2023-05-18

申请号：US17596860

申请日：2021-09-07

Applicant: KT&G CORPORATION

Inventor： Jae Min LEE ,  Hyung Seok LEE ,  Hwi Kyeong AN ,  Soung Ho JU ,  Sang Kyu PARK

IPC: A24F40/465 ,  H05B6/10 ,  A24F40/20 ,  A24F40/51

CPC classification number: A24F40/465 ,  H05B6/105 ,  A24F40/20 ,  A24F40/51

Abstract: A heater assembly for accommodating and heating an aerosol generating article includes an accommodation space into which the aerosol generating article is inserted, a coil surrounding at least part of the accommodation space and configured to generate an induced magnetic field, and a susceptor disposed in the accommodation space and configured to generate heat according to the induced magnetic field, wherein, in a state in which the aerosol generating article is fully inserted into the accommodation space, a distal end portion of the susceptor is placed upstream of a boundary between the tobacco rod and the filter rod by a preset distance inside the aerosol generating article.

公开(公告)号：US20210227891A1

公开(公告)日：2021-07-29

申请号：US16967300

申请日：2020-03-16

Applicant: KT&G CORPORATION

Inventor： Jae Min LEE

IPC: A24F40/53 ,  G01R31/392 ,  H05B1/02 ,  A24F40/20

Abstract: Provided is an aerosol generating device having a function of estimating battery life, the aerosol generating device including a heater configured to generate an aerosol by heating an aerosol generating substance; a battery configured to supply power to the heater; a counter configured to count the number of usage times the aerosol generating device is used by a user, and a controller configured to control power supplied to the heater, wherein the controller estimates a remaining life of the battery based on at least two from among an initial output voltage of the battery, an output voltage of the battery dropped as the aerosol generating device is used for a counted number of usage times, and the counted number of usage times.

公开(公告)号：US20210195959A1

公开(公告)日：2021-07-01

申请号：US17059860

申请日：2020-03-16

Applicant: KT&G CORPORATION

Inventor： Jae Min LEE ,  Sang Kyu PARK

IPC: A24F40/53 ,  A24F40/90 ,  A24F40/10 ,  A24F40/30 ,  A24F40/20

Abstract: Provided is an aerosol generating device including at least one component accommodating space having an opening on an outer surface of the aerosol generating device and allowing a removable component to be accommodated therein through the opening; a controller configured to periodically generate a test signal; a detection signal generator configured to generate a flooding detection signal based on the test signal when a liquid is introduced through the opening; and a detection signal transmitter configured to receive a generated flooding detection signal and transmit the received flooding detection signal to the controller, wherein the controller determines whether the aerosol generating device is flooded based on the flooding detection signal.

公开(公告)号：US20210186113A1

公开(公告)日：2021-06-24

申请号：US16756217

申请日：2019-07-01

Applicant: KT&G CORPORATION

Inventor： Jae Min LEE

IPC: A24F40/57 ,  H05B1/02

Abstract: A method of controlling electric power supplied to a heater includes controlling the electric power supplied to the heater by a first method until a temperature of the heater reaches an upper limit of a pre-heating temperature section; and controlling the electric power supplied to the heater by a second method to a target temperature that is higher than the upper limit, when the temperature of the heater reaches the upper limit.

公开(公告)号：US20210093009A1

公开(公告)日：2021-04-01

申请号：US17041177

申请日：2019-11-07

Applicant: KT&G CORPORATION

Inventor： Sang Kyu PARK ,  Jong sub LEE ,  Seung Won LEE ,  Jae Min LEE ,  Soung Ho JU

IPC: A24F40/465 ,  A24F40/20 ,  A24F40/51 ,  A24F40/57 ,  H05B6/10 ,  H05B6/06

Abstract: Provided is an apparatus for generating an aerosol by induction heating, the apparatus including: at least one susceptor formed in an elongated structure extending in a longitudinal direction of a cigarette to be accommodated in the apparatus, and arranged to be inserted into the cigarette to heat the cigarette; an ejector including an accommodating space for accommodating the cigarette, and an opening formed at one end of the accommodating space so that the cigarette is inserted in the accommodating space, wherein the at least one susceptor is arranged opposite the one end in the accommodating space, and the ejector is detached from and attached to the apparatus together with the at least one susceptor; and a coil arranged to surround the ejector along the longitudinal direction when the ejector is coupled to the apparatus, and configured to apply an alternating magnetic field to the at least one susceptor so that the at least one susceptor generates heat.