US 11,700,885 B2
Aerosol generation device including mainstream smoke passage and pressure detection passage
Jung Ho Han, Daejeon (KR); Jae Sung Choi, Hanam-si (KR); Hun Il Lim, Seoul (KR); Tae Hun Kim, Yongin-si (KR); and Hyung Jin Jung, Seoul (KR)
Assigned to KT&G CORPORATION, Daejeon (KR)
Appl. No. 16/652,915
Filed by KT&G CORPORATION, Daejeon (KR)
PCT Filed Oct. 25, 2018, PCT No. PCT/KR2018/012685
§ 371(c)(1), (2) Date Apr. 1, 2020,
PCT Pub. No. WO2019/088562, PCT Pub. Date May 9, 2019.
Claims priority of application No. 10-2017-0142578 (KR), filed on Oct. 30, 2017; application No. 10-2018-0056766 (KR), filed on May 17, 2018; and application No. 10-2018-0106156 (KR), filed on Sep. 5, 2018.
Prior Publication US 2020/0229501 A1, Jul. 23, 2020
Int. Cl. A24F 13/00 (2006.01); A24F 40/42 (2020.01); A24F 40/90 (2020.01); A24F 40/46 (2020.01); A24B 15/167 (2020.01); A24F 40/20 (2020.01); A24F 40/30 (2020.01); A24D 3/17 (2020.01); A24D 1/20 (2020.01); A24F 40/60 (2020.01); F21V 3/00 (2015.01); F21V 5/00 (2018.01); G02B 19/00 (2006.01); H05B 3/54 (2006.01); A24F 40/485 (2020.01); A24F 40/10 (2020.01); A24F 40/44 (2020.01); A24F 40/40 (2020.01); A24F 40/57 (2020.01); A24F 40/65 (2020.01); H05K 1/02 (2006.01); H05K 1/14 (2006.01); H05K 1/18 (2006.01); A24F 40/50 (2020.01); A24F 40/95 (2020.01); A24F 15/01 (2020.01); A24F 40/51 (2020.01); F21Y 115/10 (2016.01)
CPC A24F 40/42 (2020.01) [A24B 15/167 (2016.11); A24D 1/20 (2020.01); A24D 3/17 (2020.01); A24F 15/01 (2020.01); A24F 40/10 (2020.01); A24F 40/20 (2020.01); A24F 40/30 (2020.01); A24F 40/40 (2020.01); A24F 40/44 (2020.01); A24F 40/46 (2020.01); A24F 40/485 (2020.01); A24F 40/50 (2020.01); A24F 40/57 (2020.01); A24F 40/60 (2020.01); A24F 40/65 (2020.01); A24F 40/90 (2020.01); A24F 40/95 (2020.01); F21V 3/00 (2013.01); F21V 5/00 (2013.01); G02B 19/0009 (2013.01); G02B 19/0061 (2013.01); H05B 3/54 (2013.01); H05K 1/0203 (2013.01); H05K 1/0277 (2013.01); H05K 1/148 (2013.01); H05K 1/181 (2013.01); A24F 40/51 (2020.01); F21Y 2115/10 (2016.08); H05K 2201/012 (2013.01); H05K 2201/0154 (2013.01); H05K 2201/10219 (2013.01)] 23 Claims
OG exemplary drawing
 
1. An aerosol generation device comprising:
a case into which a cigarette is to be inserted;
a heater disposed in the case and configured to heat the cigarette inserted into the case;
a mainstream smoke passage connecting an end portion of the cigarette to outside the case;
a pressure detection sensor configured to detect a change in a pressure of air inhaled to pass through the cigarette; and
at least one pressure detection passage that connects the end portion of the cigarette to the pressure detection sensor, and is formed independently of the mainstream smoke passage,
wherein an accommodation portion for accommodating the pressure detection sensor is provided in the case, and a protection film for preventing leakage of air is provided between the accommodation portion and the pressure detection sensor.