Heating structure and aerosol generating device including the same

Patent metadata

Field	Value
Publication number	US-2025031759-A1
Application number	US-202318275530-A
Country	US
Kind code	A1
Filing date	May 4, 2023
Priority date	May 18, 2022
Publication date	Jan 30, 2025
Grant date	—

Abstract

A heating structure configured to generate heat using surface plasmon resonance (SPR) includes a foam, wherein the foam may include a plurality of metal particles configured to generate heat by SPR, and a plurality of pores between the plurality of metal particles.

First claim

1 . A heating structure, comprising:
a foam, wherein the foam comprises: a plurality of metal particles configured to generate heat by surface plasmon resonance (SPR); and a plurality of pores between the plurality of metal particles.

2 . The heating structure of claim 1 , wherein
the foam comprises a substrate comprising the plurality of metal particles and the plurality of pores.

3 . The heating structure of claim 2 , wherein
the substrate and the plurality of metal particles are formed of different materials.

4 . The heating structure of claim 1 , wherein
the plurality of metal particles comprise nanoscale particles.

5 . The heating structure of claim 1 , wherein
the foam comprises a pervious area through which light passes between the plurality of pores.

6 . The heating structure of claim 1 , wherein
at least some the plurality of pores are in fluid communication.

7 . The heating structure of claim 1 , wherein
at least a portion of the plurality of pores are open to an outside of the foam.

8 . The heating structure of claim 1 , further comprising:
a reflecting body disposed on the foam and configured to reflect light toward the foam.

9 . The heating structure of claim 8 , wherein
the reflecting body is disposed along at least a portion of a periphery area of the foam.

10 . The heating structure of claim 1 , wherein
the foam further comprises a cavity.

11 . The heating structure of claim 1 , wherein
the foam further comprises a piercing member.

12 . An aerosol generating device, comprising:
a light source; and the heating structure according to claim 1 , which is configured to receive light from the light source.

13 . The aerosol generating device of claim 12 , wherein
the light source is configured to emit light having a wavelength of about 380 nanometers (nm) or greater.

14 . The aerosol generating device of claim 12 , wherein
the light source comprises a plurality of light sources configured to emit light respectively toward different sides of the foam.

15 . An aerosol generating system, comprising:
an aerosol generating article; and the aerosol generating device according to claim 12 , which is configured to generate an aerosol from the aerosol generating article.

Assignees

• Kt & G Corp

Inventors

• Lee Wonkyeong
• Sunwoo Paul Joon

Classifications

• H05B33/22

  characterised by the chemical or physical composition or the arrangement of auxiliary dielectric or reflective layers · CPC title

• H05B33/00

  Electroluminescent light sources · CPC title

• B22F3/1125

  involving a foaming process · CPC title

• B22F1/054

  Nanosized particles · CPC title

• B22F7/08

  with one or more parts not made from powder {(B22F7/062 takes precedence)} · CPC title