US 12,357,033 B2
Aerosol generating device and operation method thereof
Sang Kyu Park, Seoul (KR); and Jae Min Lee, Siheung-si (KR)
Assigned to KT&G CORPORATION, Daejeon (KR)
Appl. No. 17/265,918
Filed by KT&G CORPORATION, Daejeon (KR)
PCT Filed Nov. 9, 2020, PCT No. PCT/KR2020/015625
§ 371(c)(1), (2) Date Feb. 4, 2021,
PCT Pub. No. WO2021/096182, PCT Pub. Date May 20, 2021.
Claims priority of application No. 10-2019-0144531 (KR), filed on Nov. 12, 2019.
Prior Publication US 2022/0338552 A1, Oct. 27, 2022
Int. Cl. A24F 40/57 (2020.01); A24F 40/20 (2020.01); A24F 40/46 (2020.01); H05B 1/02 (2006.01)
CPC A24F 40/57 (2020.01) [A24F 40/20 (2020.01); A24F 40/46 (2020.01); H05B 1/0244 (2013.01); H05B 2203/037 (2013.01)] 7 Claims
OG exemplary drawing
 
1. An aerosol generating device comprising:
a heater including a first electrically conductive track and a second electrically conductive track having a higher temperature coefficient of resistance than the first electrically conductive track;
a battery configured to supply power to the heater; and
a controller configured to control the battery to selectively supply power to the first electrically conductive track for heating a tobacco rod of a cigarette accommodated in the aerosol generating device in a first temperature change section or supply power to the second electrically conductive track for heating the tobacco rod of the cigarette in a second temperature change section, the cigarette comprising the tobacco rod and a filter rod,
wherein the first temperature change section corresponds to a preheating section for increasing a temperature of the heater up to an operation temperature, and the second temperature change section corresponds to a smoking section for substantially maintaining the temperature of the heater at the operation temperature, and
wherein the operation temperature is a temperature at which aerosol is generated from an aerosol generating material included in the tobacco rod.