Electronic cigarette and heating assembly and heating member thereof

Patent metadata

Field	Value
Publication number	US-12178248-B2
Application number	US-201816969828-A
Country	US
Kind code	B2
Filing date	Feb 13, 2018
Priority date	Feb 13, 2018
Publication date	Dec 31, 2024
Grant date	Dec 31, 2024

Abstract

An electronic cigarette and a heating assembly and a heating member thereof. The heating assembly comprises a porous member for absorbing an e-liquid and at least one heating member for heating and atomizing the e-liquid absorbed by the porous member. The at least one heating member comprises an elongated sheet-shaped heating portion. At least part of the sheet-shaped heating portion is partially embedded in the porous member. The porous member comprises an atomization surface corresponding to the at least part of the sheet-shaped heating portion. The at least part of the sheet-shaped heating portion has a through hole for adjusting resistance distribution.

First claim

What is claimed is:

1. A heating assembly of an electronic cigarette, the heating assembly comprising:
a porous body configured for adsorbing e-liquid; and
at least one heating element configured for heating and atomizing the e-liquid adsorbed into the porous body;
wherein the at least one heating element comprises an elongated sheet heating portion, at least partial section of the sheet heating portion is at least partially embedded in the porous body, and the porous body comprises an atomizing surface corresponding to the at least partial section;
wherein the at least partial section is provided with a through hole configured for adjusting resistance distribution, and
wherein the at least partial section comprises a plurality of through holes, and in a length direction of the sheet heating portion, a density of the through holes in the middle is greater than that of the through holes at both end.

2. The heating assembly of the electronic cigarette according to claim 1 , wherein the at least partial section comprises a plurality of through holes, and a distribution density of the through holes in a width direction of the sheet heating portion changes gradually or changes stepwise.

3. The heating assembly of the electronic cigarette according to claim 1 , wherein the at least partial section is embedded in the porous body in a manner that a movement direction of at least one of the e-liquid and smoke in the porous body follows along a width direction of the at least partial section.

4. The heating assembly of the electronic cigarette according to claim 1 , wherein the at least partial section extends in a length direction of the at least partial section along a direction parallel to a plane where the atomizing surface is located.

5. The heating assembly of the electronic cigarette according to claim 1 , wherein two opposite surfaces of the at least partial section defined by length and width are in direct contact with the porous body.

6. The heating assembly of the electronic cigarette according to claim 1 , wherein the porous body comprises a sintered porous body, the at least partial section is integrally formed with the sintered porous body by sintering.

7. The heating assembly of the electronic cigarette according to claim 1 , wherein the at least partial section comprises a plurality of flat portions parallel to each other and a plurality of bending portions sequentially connecting the plurality of flat portions in series, the flat portions are arranged at intervals in a direction parallel to a plane where the atomizing surface is located, and the intervals are larger in the middle and smaller at both sides, or smaller in the middle and larger at the both sides.

8. The heating assembly of the electronic cigarette according to claim 1 , wherein the porous body comprises a first layer adjacent to the atomizing surface and a second layer away from the atomizing surface, a thermal conductivity of the first layer is greater than that of the second layer, wherein the at least partial section is embedded in the first layer.

9. The heating assembly of the electronic cigarette according to claim 1 , wherein the at least partial section comprises a plurality of flat portions parallel to each other and a plurality of bending portions sequentially connecting the plurality of flat portions in series, the atomizing surface is provided in a wavy shape, and the plurality of flat portions are disposed corresponding to troughs of the atomizing surface, respectively.

10. The heating assembly of the electronic cigarette according to claim 1 , wherein a thermal conductivity of the porous body gradually increases in a direction from an area away from the atomizing surface to an area adjacent to the atomizing surface.

11. The heating assembly of the electronic cigarette according to claim 1 , wherein the at least one heating element comprises two electrical connecting portions integrally connected to both ends of the sheet heating portion, respectively; each of the electrical connecting portions comprises a lower portion protruding from a lower edge of the sheet heating portion and an upper portion protruding from an upper edge of the sheet heating portion.

12. The heating assembly of the electronic cigarette according to claim 1 , wherein the at least partial section is integrally embedded in the porous body.

13. The heating assembly of the electronic cigarette according to claim 1 , wherein a width direction of the at least partial section of the sheet heating portion is substantially perpendicular to a plane where the atomizing surface is located.

14. A heating element of an electronic cigarette, the heating element comprising:
an elongated sheet heating portion;
wherein the elongated sheet heating portion is provided with a through hole configured for adjusting resistance distribution, and
wherein the sheet heating portion comprises a plurality of through holes, and in a length direction of the sheet heating portion, a density of the through holes in the middle is greater than that of the through holes at both ends.

15. The heating element of the electronic cigarette according to claim 14 , wherein the sheet heating portion comprises a plurality of through holes, and a distribution density of the through holes in a width direction of the sheet heating portion changes gradually or changes stepwise.

16. An electronic cigarette, comprising the heating assembly of the electronic cigarette of claim 1 .

Assignees

• Shenzhen Smoore Technology Ltd

Inventors

• Li Xiaoping
• Yi Changyong
• Jiang Zhenlong

Classifications

• H05B2203/021

  Heaters specially adapted for heating liquids · CPC title

• H05B2203/016

  Heaters using particular connecting means · CPC title

• H05B2203/003

  using serpentine layout · CPC title

• H05B3/18

  the conductor being embedded in an insulating material · CPC title

• H05B1/0227

  Applications · CPC title