Vaporizer and aerosol generation device including the same

Patent metadata

Field	Value
Publication number	US-12471631-B2
Application number	US-202017296837-A
Country	US
Kind code	B2
Filing date	Dec 21, 2020
Priority date	Jan 31, 2020
Publication date	Nov 18, 2025
Grant date	Nov 18, 2025

Abstract

Provided herein are a vaporizer and an aerosol generation device including the same. The vaporizer according to some embodiments of the present disclosure includes a porous wick configured to absorb an aerosol-generating substrate in a liquid state through a porous body, and a heating element which includes a heating pattern having a planar form that is embedded in the porous body and which is configured to heat the absorbed aerosol-generating substrate by the heating pattern to generate an aerosol. Since the heating pattern is embedded at a predetermined depth from a surface of the porous body, the amount of generated aerosol may be increased, and the risk of damage to the wick and the carbonization phenomenon may be reduced.

First claim

What is claimed is:

1 . A vaporizer comprising:
a porous wick configured to absorb an aerosol-generating substrate in a liquid state through a porous body; and a heating element protruding from a side surface of the porous body and comprising: a heating pattern which has a planar form and is embedded in the porous body, and configured to heat the absorbed aerosol-generating substrate by the heating pattern to generate an aerosol; one or more terminals electrically connected to the heating pattern and a battery, wherein the one or more terminals protrude from the side surface of the porous body and are folded to come in contact with the side surface of the porous body, wherein a connecting member that connects the heating pattern and the one or more terminals to each other and is embedded in the porous body, and wherein the porous wick overlaps the heating pattern, and does not overlap the one or more terminals.

2 . The vaporizer of claim 1 , wherein the heating pattern is embedded at a position deviated in a specific direction from a center of the porous body.

3 . The vaporizer of claim 2 , further comprising a liquid reservoir configured to store the aerosol-generating substrate,
wherein the specific direction is an opposite direction of a direction in which the liquid reservoir is disposed with respect to the porous wick.

4 . The vaporizer of claim 1 , wherein a depth at which the heating pattern is embedded is in a range of 0 μm to 400 μm from a surface of the porous body.

5 . The vaporizer of claim 1 , wherein the porous body is formed by a plurality of beads.

6 . The vaporizer of claim 5 , wherein the beads are ceramic beads.

7 . The vaporizer of claim 5 , wherein a diameter of each of the beads is in a range of 70 μm to 100 μm.

8 . The vaporizer of claim 5 , wherein a diameter distribution of the plurality of beads has a tolerance that is 20% of an average diameter.

9 . The vaporizer of claim 1 , further comprising an airflow tube disposed above the porous wick and configured to deliver the generated aerosol,
wherein the heating pattern is embedded in a lower portion of the porous body.

Assignees

• Kt & G Corp

Inventors

• Jang Chul Ho
• Jeong Jong Seong
• Go Gyoung Min
• Bae Hyung Jin
• Seo Jang Won
• Jeong Min Seok
• Jung Jin Chul

Classifications

• H05B3/22

  non-flexible · CPC title

• A24F40/44 Primary

  Wicks · CPC title

• A24F40/10 Primary

  Devices using liquid inhalable precursors · CPC title

• A24F40/48

  Fluid transfer means, e.g. pumps · CPC title

• A24F40/46 Primary

  Shape or structure of electric heating means · CPC title