Aerosol-generating device

Patent metadata

Field	Value
Publication number	US-12465082-B2
Application number	US-202218013204-A
Country	US
Kind code	B2
Filing date	Jan 10, 2022
Priority date	Jan 22, 2021
Publication date	Nov 11, 2025
Grant date	Nov 11, 2025

Abstract

An aerosol-generating device is disclosed. The aerosol-generating device includes comprising an inner wall and an outer wall, wherein the inner wall defines an insert space configured to accommodate insertion of an aerosol-generating member, and wherein a chamber configured to store liquid is defined between the inner wall and the outer wall; a wick disposed at an end of the insert space; a heater configured to heat the wick; a passage formed between the insert space and the wick; and an infrared sensor disposed adjacent to the insert space.

First claim

The invention claimed is:

1 . An aerosol-generating device comprising:
an elongated container comprising an inner wall and an outer wall, wherein the inner wall defines an insert space configured to accommodate insertion of an aerosol-generating member, and wherein a chamber configured to store liquid is defined between the inner wall and the outer wall; a wick disposed at an end of the insert space; a heater configured to heat the wick; a passage formed between the insert space and the wick; and an infrared sensor disposed adjacent to the container, wherein the outer wall and the inner wall of the container are made of a light-permeable material.

2 . The aerosol-generating device according to claim 1 , wherein the outer wall of the container includes:
a first surface positioned adjacent to the infrared sensor; and a second surface disposed opposite the first surface and having a shape different from the first surface.

3 . The aerosol-generating device according to claim 2 , wherein the second surface is rounded.

4 . The aerosol-generating device according to claim 3 , further comprising an upper housing disposed adjacent to the first surface and comprising a reception space therein,
wherein a third surface of the upper housing is positioned to face the first surface, and wherein the infrared sensor is disposed in the reception space of the upper housing to face the first surface.

5 . The aerosol-generating device according to claim 4 , wherein the first surface and the third surface are parallel to each other.

6 . The aerosol-generating device according to claim 4 , wherein the upper housing comprises a fourth surface disposed opposite the third surface and having a shape different from the third surface.

7 . The aerosol-generating device according to claim 6 , wherein the fourth surface is rounded.

8 . The aerosol-generating device according to claim 1 , further comprising a controller configured to determine a state of the aerosol-generating member based on a comparison between a value detected by the infrared sensor and a reference value.

9 . The aerosol-generating device according to claim 8 , wherein the controller is configured to determine that the aerosol-generating member is inserted into the insert space based on the detected value exceeding a first reference value, and determine that no aerosol-generating member is inserted into the insert space based on the detected value being less than or equal to the first reference value.

10 . The aerosol-generating device according to claim 9 , wherein the controller is configured to:
determine that a first type aerosol-generating member is inserted into the insert space based on the detected value exceeding both the first reference value and a second reference value; and determine that a second type aerosol-generating member is inserted into the insert space based on the detected value exceeding the first reference value but being less than or equal to the second reference value.

11 . The aerosol-generating device according to claim 10 , wherein a position of the infrared sensor with respect to a length of the insert space corresponds to a position of a marker on a surface of the aerosol-generating member when the aerosol-generating member is inserted into the insert space.

12 . An aerosol-generating device comprising:
an elongated container comprising an inner wall and an outer wall, wherein the inner wall defines an insert space configured to accommodate insertion of an aerosol-generating member, and wherein a chamber configured to store liquid is defined between the inner wall and the outer wall; a wick disposed at an end of the insert space; a heater configured to heat the wick; a passage formed between the insert space and the wick; and an infrared sensor disposed adjacent to the container and configured to emit infrared light through the inner wall and outer wall and detect a value based on the infrared light reflected by the aerosol-generating member inserted in the insert space.

Assignees

• Kt & G Corp

Inventors

• Lee Jongsub
• Kim Minkyu
• Park Jueon
• Cho Byungsung

Classifications

• A24F40/51 Primary

  Arrangement of sensors · CPC title

• A24F40/44

  Wicks · CPC title

• A24F40/10

  Devices using liquid inhalable precursors · CPC title

• A24F40/485

  Valves; Apertures · CPC title

• A24F40/53

  Monitoring, e.g. fault detection · CPC title