US 12,137,740 B2
Porous heating body and atomizer having same
Qing Zhang, Shenzhen (CN); Jun Yuan, Shenzhen (CN); Yunkai Zhang, Shenzhen (CN); Zhengfa Li, Shenzhen (CN); Desheng Huang, Shenzhen (CN); Baoling Lei, Shenzhen (CN); Yonghai Li, Shenzhen (CN); and Zhongli Xu, Shenzhen (CN)
Assigned to SHENZHEN FIRST UNION TECHNOLOGY CO., LTD., Shenzhen (CN)
Appl. No. 17/294,511
Filed by SHENZHEN FIRST UNION TECHNOLOGY CO., LTD., Shenzhen (CN)
PCT Filed Nov. 6, 2019, PCT No. PCT/CN2019/116008
§ 371(c)(1), (2) Date May 17, 2021,
PCT Pub. No. WO2020/098544, PCT Pub. Date May 22, 2020.
Claims priority of application No. 201811357024 (CN), filed on Nov. 15, 2018.
Prior Publication US 2022/0007724 A1, Jan. 13, 2022
Int. Cl. A24F 40/46 (2020.01); A24F 40/10 (2020.01); A24F 40/42 (2020.01); A24F 40/485 (2020.01)
CPC A24F 40/46 (2020.01) [A24F 40/10 (2020.01); A24F 40/42 (2020.01); A24F 40/485 (2020.01)] 18 Claims
OG exemplary drawing
 
1. A porous heating body, comprising a porous body for conducting liquid tobacco, wherein the porous body comprises a first porous portion, a second porous portion and a third porous portion respectively for conducting the liquid tobacco, and successively disposed in the porous body along a lengthwise direction of the porous body, a first through hole being formed in the porous body and extending along the lengthwise direction of the porous body to penetrate through the first porous portion, the second porous portion and the third porous portion successively, one of an inner surface of the second porous portion facing the first through hole and an outer surface of the second porous portion being disposed as a liquid tobacco absorbing face for contacting liquid tobacco while the other one of the inner surface of the second porous portion and the outer surface of the second porous portion being disposed as an atomizing face for atomizing the liquid tobacco from the liquid tobacco absorbing face, a cross-sectional area of the first porous portion and a cross-sectional area of the third porous portion are both larger than a cross-sectional area of the second porous portion along a widthwise direction of the porous body;
a heating element extending along the lengthwise direction of the porous body is disposed on the atomizing face, the heating element comprises a heating portion for atomizing the liquid tobacco acquired from the liquid tobacco absorbing face to the atomizing face via the second porous portion to generate aerosol, at least one portion of an extension length of the heating portion along the lengthwise direction of the porous body is overlapped with an extension length of the second porous portion.