US 12,213,520 B2
Liquid cartridge and aerosol generation device including the same
Chul Ho Jang, Daejeon (KR); Gyoung Min Go, Daejeon (KR); Sung Hwan Kim, Daejeon (KR); and Yong Joon Jang, Daejeon (KR)
Assigned to KT & G CORPORATION, Daejeon (KR)
Appl. No. 17/267,285
Filed by KT&G CORPORATION, Daejeon (KR)
PCT Filed Aug. 21, 2020, PCT No. PCT/KR2020/011181
§ 371(c)(1), (2) Date Feb. 9, 2021,
PCT Pub. No. WO2021/071084, PCT Pub. Date Apr. 15, 2021.
Claims priority of application No. 10-2019-0125850 (KR), filed on Oct. 11, 2019.
Prior Publication US 2022/0295879 A1, Sep. 22, 2022
Int. Cl. A24F 40/44 (2020.01); A24F 40/42 (2020.01); A24F 40/485 (2020.01)
CPC A24F 40/42 (2020.01) [A24F 40/44 (2020.01); A24F 40/485 (2020.01)] 10 Claims
OG exemplary drawing
 
1. A liquid cartridge comprising:
a storage portion having an accommodating space configured to store an aerosol-generating substrate in a liquid state,
a wick having two ends and configured to absorb the aerosol-generating substrate that is stored in the accommodating space at the two ends, wherein one or more portions of the wick, excluding the two ends of the wick, are surrounded by a wick housing;
an air hole configured to introduce air into the accommodating space storing the aerosol-generating substrate in the liquid state and disperse positions where bubbles are generated in the accommodating space to other positions instead of near the two ends of the wick; and
a vaporizing portion configured to generate an aerosol by vaporizing the aerosol-generating substrate absorbed in the wick,
wherein the air hole is disposed at a connection portion between the wick housing and the storage portion to introduce air inside the wick housing into the accommodating space to generate bubbles near the air hole and disperse positions where bubbles are generated, and
wherein in a state in which the user's mouth is upward, the air hole is disposed at a lower end of the storage portion and above of the wick.