公开(公告)号：US12137740B2

公开(公告)日：2024-11-12

申请号：US17294511

申请日：2019-11-06

Applicant: SHENZHEN FIRST UNION TECHNOLOGY CO., LTD.

Inventor： Qing Zhang ,  Jun Yuan ,  Yunkai Zhang ,  Zhengfa Li ,  Desheng Huang ,  Baoling Lei ,  Yonghai Li ,  Zhongli Xu

IPC: A24F40/46 ,  A24F40/10 ,  A24F40/42 ,  A24F40/485

Abstract: A porous heating body includes a porous body having a first porous portion, a second porous portion and a third porous portion successively disposed in the porous body along a lengthwise direction of the porous body. 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 extends along the lengthwise direction of the porous body is disposed on the porous body. The heating element includes a heating portion. At least one portion of an extension length of the heating portion is overlapped with an extension length of the second porous portion. The porous body is shaped to enhance conductivity of liquid tobacco in a middle thereof, and storing liquid tobacco for replenishing at two bulge ends thereof.

公开(公告)号：US11297880B2

公开(公告)日：2022-04-12

申请号：US16542359

申请日：2019-08-16

Applicant: Shenzhen First Union Technology Co., Ltd.

Inventor： Qing Zhang ,  Zhengfa Li ,  Yunkai Zhang ,  Baoling Lei ,  Desheng Huang ,  Zhongli Xu ,  Yonghai Li

IPC: A24F40/46 ,  H05B3/44 ,  A24F40/44 ,  A24F40/10

Abstract: A heater, a cartridge, an atomizer and an electronic cigarette having same are disclosed, the heater includes a porous body, configured for absorbing tobacco liquid; the porous body having an absorbing surface and an atomizing surface opposite with each other; the tobacco liquid permeating from the absorbing surface to the atomizing surface; a heating element, disposed on the atomizing surface and configured to atomize the tobacco liquid stored in the porous body into an aerosol; and part of the porous body that is near the atomizing surface having a less thermal conductivity than part of the porous body that is near the absorbing surface, resulting in a big amount of aerosol while not easy to generate burnt flavor and improving user experience.