Porous component and electronic cigarette including the same

Patent metadata

Field	Value
Publication number	US-11602172-B2
Application number	US-202016942971-A
Country	US
Kind code	B2
Filing date	Jul 30, 2020
Priority date	Aug 2, 2019
Publication date	Mar 14, 2023
Grant date	Mar 14, 2023

Abstract

The present disclosure relates to a porous component and an electronic cigarette including the same. The porous component includes a porous substrate, an atomizing portion located on the porous substrate; a liquid guiding portion located on the porous substrate, a porosity of the liquid guiding portion being greater than a porosity of the atomizing portion; and a functional portion located on the porous substrate. A porosity of the functional portion is greater than a porosity of the liquid guiding portion, and a thermal conductivity of the functional portion is greater than a thermal conductivity of the atomizing portion and the liquid guiding portion.

First claim

What is claimed is:

1. A porous component for an electronic cigarette, the porous component comprising:
a porous substrate;
an atomizing portion located on the porous substrate;
a liquid guiding portion located on the porous substrate, a porosity of the liquid guiding portion being greater than a porosity of the atomizing portion; and
a functional portion located on the porous substrate,
wherein a porosity of the functional portion is greater than a porosity of the liquid guiding portion, and a thermal conductivity of the functional portion is greater than a thermal conductivity of the atomizing portion and the liquid guiding portion.

2. The porous component according to claim 1 , wherein the functional portion is connected to at least one of the atomizing portion and the liquid guiding portion and comprises a first functional portion connected to the liquid guiding portion, a porosity of the first functional portion is greater than the porosity of the liquid guiding portion, the liquid guiding portion is connected to the atomizing portion; the atomizing portion, the liquid guiding portion, and the first functional portion are horizontally arranged on a side of the porous substrate.

3. The porous component according to claim 2 , wherein a plurality of the liquid guiding portions and a plurality of the first functional portions are provided, each first functional portion is surrounded by a corresponding liquid guiding portion, and the plurality of liquid guiding portions are surrounded by the atomizing portion.

4. The porous component according to claim 3 , wherein the plurality of first functional portions are arranged in an array, each of the first functional portions has a rectangular shape, and each of the liquid guiding portions is shaped as a rectangular frame.

5. The porous component according to claim 1 , wherein the functional portion comprises a second functional portion connected to the atomizing portion and the liquid guiding portion, a thermal conductivity of the second functional portion is greater than the thermal conductivity of the atomizing portion and the liquid guiding portion; the atomizing portion, the liquid guiding portion, and the second functional portion are horizontally arranged on a side of the porous substrate.

6. The porous component according to claim 5 , wherein a plurality of the liquid guiding portions and a plurality of the second functional portions are provided, each liquid guiding portion is surrounded by a corresponding second functional portion, and the plurality of second functional portions are surrounded by the atomizing portion.

7. The porous component according to claim 6 , wherein the plurality of second functional portions are arranged in an array, each of the second functional portions has a ring shape, and each of the liquid guiding portions has a circular shape.

8. The porous component according to claim 5 , wherein a plurality of the atomizing portion, a plurality of the liquid guiding portion and a plurality of the second functional portion are provided, the plurality of atomizing portion are spaced apart in parallel, the plurality of liquid guiding portions and the plurality of second functional portions are alternatively arranged between two adjacent atomizing portions along an extending direction thereof.

9. The porous component according to claim 1 , wherein the functional portion comprises a first functional portion and a second functional portion, the first functional portion is connected to the liquid guiding portion, the second functional portion is connected to at least one of the atomizing portion and the liquid guiding portion; the atomizing portion, the liquid guiding portion, the first functional portion, and the second functional portion are horizontally arranged on a side of the porous substrate.

10. The porous component according to claim 9 , wherein the first functional portion is surrounded by the liquid guiding portion, a plurality of the second functional portion are provided, the liquid guiding portion is surrounded by at least one second functional portion, and at least one second functional portion is surrounded by the atomizing portion, the atomizing portion is surrounded by at least one second functional portion.

11. The porous component according to claim 10 , wherein the first functional portion has a circular shape, the atomizing portion, the liquid guiding portion, and the second functional portions each has a ring shape concentric with the first functional portion.

12. The porous component according to claim 1 , wherein the functional portion comprises a first functional portion, the liquid guiding portion and the first functional portion are horizontally arranged on a side of the porous substrate, the atomizing portion is laminated on a side of the liquid guiding portion and the first functional portion away from the porous substrate.

13. The porous component according to claim 12 , wherein a plurality of the first functional portion are provided, the liquid guiding portion is located between two adjacent first functional portions, each of the first functional portions is in partial contact with the atomizing portion.

14. The porous component according to claim 12 , wherein a side of the porous substrate away from the liquid guiding portion and the first functional portions forms a groove for storing liquid.

15. The porous component according to claim 1 , wherein a porosity of the atomizing portion is less than 20%, a porosity of the liquid guiding portion is in a range from 20% to 60%, a porosity of the functional portion is in a range from 40% to 70%, a thermal conductivity of the functional portion is greater than 10 W/m·K, a pore size of the porous substrate is in a range from 10 μm to 50 μm, a porosity of the porous substrate is in a range from 30% to 70%.

16. The porous component according to claim 1 , wherein the atomizing portion is made of at least one selected from a group consisting of alumina ceramic, silicon oxide ceramic, zirconia ceramic, silicon nitride ceramic, cordierite ceramic, silicon carbide ceramic, aluminum titanate ceramic, spodumene ceramic, and mullite ceramic, the liquid guiding portion is made of at least one selected from a group consisting of alumina ceramic, cordierite ceramic, diatomaceous earth ceramic, and silicon carbide ceramic, the porous substrate is made of at least one selected from a group consisting of porous ceramic and porous metal.

17. The porous component according to claim 2 , wherein the first functional portion is made of the alumina ceramic.

18. The porous component according to claim 5 , wherein the second functional portion is made of at least one selected from a group consisting of silicon carbide, silicon nitride, and aluminum nitride.

19. The porous component according to claim 1 , wherein the functional portion is connected to at least one of the atomizing portion and the liquid guiding portion, the porous component further comprises electrically conductive tracks positioned on the atomizing portion.

20. An electronic cigarette, comprising:
a porous component, the porous component comprising:
a porous substrate;
an atomizing portion located on the porous substrate;
a liquid guiding portion located on the porous substrate, a porosity of the liquid guiding portion being greater than a porosity of the atomizing portion; and
a functional portion located on the porous substrate,
wherein a porosity of the functional portion is greater than a porosity of the liquid guiding portion, and a therm

Assignees

• Shenzhen Smoore Technology Ltd

Inventors

• Xiao Congwen
• Jiang Zhenlong
• Luo Hongliang
• Xiao Lingrong
• Li Xiaoping

Classifications

• A24F40/44 Primary

  Wicks · CPC title

• A24F40/46 Primary

  Shape or structure of electric heating means · CPC title

• A24F40/10

  Devices using liquid inhalable precursors · CPC title

• H05B1/0227

  Applications · CPC title