Aerosol generation device having differentiated heating function and aerosol-generating article applied thereto

Patent metadata

Field	Value
Publication number	US-12484625-B2
Application number	US-202218042135-A
Country	US
Kind code	B2
Filing date	Mar 25, 2022
Priority date	Apr 16, 2021
Publication date	Dec 2, 2025
Grant date	Dec 2, 2025

Abstract

An aerosol generation device having a differentiated heating function and an aerosol-generating article applied thereto are provided. The aerosol generation device according to some embodiments of the present disclosure may include a housing configured to form an accommodation space for accommodating an aerosol-generating article and a heater part configured to heat the aerosol-generating article accommodated in the accommodation space to generate an aerosol. Here, by including a first heating part configured to heat a first part of the aerosol-generating article from a first distance and a second heating part configured to heat a second part of the aerosol-generating article from a second distance longer than the first distance, the heater part can heat each part of the aerosol-generating article in a differentiated manner.

First claim

What is claimed is:

1 . An aerosol generation device comprising:
a housing configured to form an accommodation space for accommodating an aerosol-generating article; and a heater part surrounding the aerosol-generating article and configured to heat the aerosol-generating article accommodated in the accommodation space to generate an aerosol, wherein the heater part includes:
a first susceptor configured to heat a first part of the aerosol-generating article from a first distance away from a surface of the aerosol-generating article, and
a second susceptor configured to heat a second part of the aerosol-generating article from a second distance away from the surface of the aerosol-generating article, the second distance being longer than the first distance.

2 . The aerosol generation device of claim 1 , wherein the heater part further includes an inductor configured to inductively heat the first susceptor and the second susceptor.

3 . The aerosol generation device of claim 2 , wherein:
the inductor includes a first coil part that corresponds to the first susceptor and a second coil part that corresponds to the second susceptor; and a number of winding layers of the first coil part is more than the a number of winding layers of the second coil part.

4 . The aerosol generation device of claim 1 , wherein:
the first part is a first segment of the aerosol-generating article; the second part is a second segment located downstream of the first segment; the first segment includes an aerosol-forming agent; and the second segment includes a nicotine-generating substrate.

5 . The aerosol generation device of claim 4 , wherein the second susceptor is configured to heat portions of the second segment excluding a downstream end portion thereof.

6 . The aerosol generation device of claim 1 , wherein an inner diameter of the first susceptor is less than an inner diameter of the second susceptor.

7 . The aerosol generation device of claim 6 , wherein:
the heater part further includes an inductor; the inductor includes a first coil part for inductively heating the first susceptor and a second coil part for inductively heating the second susceptor; and a diameter of the first coil part is smaller than a diameter of the second coil part.

8 . The aerosol generation device of claim 6 , wherein a length of the first susceptor is longer than a length of the second susceptor.

9 . The aerosol generation device of claim 6 , wherein a thickness of the first susceptor is thicker than a thickness of the second susceptor.

10 . The aerosol generation device of claim 1 , wherein a heat capacity difference between the first susceptor and the second susceptor is 10% or less of a heat capacity of the first susceptor.

11 . The aerosol generation device of claim 1 , wherein at least one opening is formed in the second susceptor.

Assignees

• Kt & G Corp

Inventors

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

Classifications

• H05B6/44

  having more than one coil or coil segment · CPC title

• H05B6/105

  using a susceptor · CPC title

• A24D1/20

  Cigarettes specially adapted for simulated smoking devices · CPC title

• A24F40/20

  Devices using solid inhalable precursors · CPC title

• A24F40/30

  Devices using two or more structurally separated inhalable precursors, e.g. using two liquid precursors in two cartridges · CPC title