Electronic cigarette and method for manufacturing atomizing assembly thereof

Patent metadata

Field	Value
Publication number	US-11446452-B2
Application number	US-202017004123-A
Country	US
Kind code	B2
Filing date	Aug 27, 2020
Priority date	Oct 21, 2015
Publication date	Sep 20, 2022
Grant date	Sep 20, 2022

Abstract

An electronic cigarette and a method for manufacturing an atomizing assembly thereof. The electronic cigarette comprises a liquid reservoir used for storing an e-liquid, and an atomizing assembly received in a shell. The atomizing assembly comprises: a liquid-absorbing element connected to the liquid reservoir, wherein the liquid-absorbing element is made of porous ceramic, and has a liquid-absorbing surface for absorbing the e-liquid and an atomizing surface; and a heating element embedded in the liquid-absorbing element, wherein the edge of the heating element is internally tangent to the atomizing surface, and the heating element is used for converting the e-liquid absorbed by the liquid-absorbing element into smoke. The electronic cigarette further comprises a power supply assembly received in the shell, connected to the atomizing assembly, and used for supplying power for the heating element.

First claim

What is claimed is:

1. An atomizing assembly, comprising:
a liquid absorption element made of porous ceramic, the liquid absorption element having a liquid absorption surface configured to absorb the liquid, and an atomizing surface; and
a heating element embedded in an interior of the liquid absorption element, wherein an edge of the heating element is substantially internally tangent to the atomizing surface, and the heating element is configured to atomize the liquid absorbed by the liquid absorption element into atomized gas.

2. The atomizing assembly according to claim 1 , wherein the liquid absorption element has a tubular shape, the liquid absorption element defines an atomizing passage therein, the atomizing surface is a sidewall of the atomizing passage, and the heating element is a spiral tubular heating wire, which spirally surrounds the atomizing passage.

3. The atomizing assembly according to claim 2 , wherein a distance between the heating wire to the atomizing surface is less than a distance between the heating wire to the liquid absorption surface of the liquid absorption element.

4. The atomizing assembly according to claim 2 , wherein a thermal conductivity of the liquid absorption element is gradually reduced from inside to outside along a radial direction.

5. The atomizing assembly according to claim 2 , wherein the liquid absorption element comprises a first layer proximately to the atomizing passage and a second layer away from the atomizing passage, the first layer has a higher thermal conductivity than a thermal conductivity of the second layer, the heating element is embedded in the first layer of the liquid absorption element.

6. The atomizing assembly according to claim 1 , wherein the porous ceramic has a porosity of 30% to 60%.

7. The atomizing assembly according to claim 2 , wherein the liquid absorption surface is an outer circumferential surface of the liquid absorption element.

8. The atomizing assembly according to claim 1 , wherein the liquid absorption surface is an end surface of the liquid absorption element.

9. The atomizing assembly according to claim 1 , wherein the liquid absorption element has a tubular shape, the atomizing surface is an outer circumferential surface of the liquid absorption element, and the liquid absorption surface is an inner circumferential surface of the liquid absorption element.

10. The atomizing assembly according to claim 8 , wherein the heating element is a planar helical heating wire.

11. An atomizer, comprising:
a liquid reservoir configured to store liquid; and
an atomizing assembly comprising:
a liquid absorption element connected to the liquid reservoir, the liquid absorption element being made of porous ceramic, the liquid absorption element having a liquid absorption surface configured to absorb the liquid, and an atomizing surface; and
a heating element embedded in an interior of the liquid absorption element, wherein an edge of the heating element is substantially internally tangent to the atomizing surface, and the heating element is configured to atomize the liquid absorbed by the liquid absorption element into atomized gas.

12. The atomizer according to claim 11 , wherein the liquid absorption element has a tubular shape, the liquid absorption element defines an atomizing passage therein, the atomizing surface is a sidewall of the atomizing passage, and the heating element is a spiral tubular heating wire, which spirally surrounds the atomizing passage.

13. The atomizer according to claim 12 , wherein a distance between the heating wire to the atomizing surface is less than a distance between the heating wire to the liquid absorption surface of the liquid absorption element.

14. The atomizer according to claim 12 , wherein a thermal conductivity of the liquid absorption element is gradually reduced from inside to outside along a radial direction.

15. The atomizer according to claim 12 , wherein the liquid absorption element comprises a first layer proximately to the atomizing passage and a second layer away from the atomizing passage, the first layer has a higher thermal conductivity than a thermal conductivity of the second layer, the heating element is embedded in the first layer of the liquid absorption element.

16. The atomizer according to claim 11 , wherein the porous ceramic has a porosity of 30% to 60%.

17. The atomizer according to claim 12 , wherein the liquid absorption surface is an outer circumferential surface of the liquid absorption element.

18. The atomizer according to claim 11 , wherein the liquid absorption element is located at an end of the liquid reservoir, the liquid absorption surface is a surface of the liquid absorption element facing the liquid reservoir.

19. The atomizer according to claim 11 , wherein the liquid absorption element has a tubular shape, the atomizing surface is an outer circumferential surface of the liquid absorption element, and the liquid absorption surface is an inner circumferential surface of the liquid absorption element.

20. The atomizer according to claim 18 , wherein the liquid absorption element is located at an end of the liquid reservoir, the atomizing surface is an end surface of the liquid absorption element away from the liquid reservoir, and the heating element is a planar helical heating wire.

Assignees

• Shenzhen Smoore Technology Ltd

Inventors

• Liu Pingkun

Classifications

• A24F40/46

  Shape or structure of electric heating means · CPC title

• A24F40/70

  Manufacture · CPC title

• A61M11/042

  electrical · CPC title

• A61M15/06 Primary

  Inhaling appliances shaped like cigars, cigarettes or pipes · CPC title

• A24F40/10

  Devices using liquid inhalable precursors · CPC title