Aerosol generating device and aerosol generating system

Patent metadata

Field	Value
Publication number	US-12402651-B2
Application number	US-202017280989-A
Country	US
Kind code	B2
Filing date	Dec 15, 2020
Priority date	Mar 2, 2020
Publication date	Sep 2, 2025
Grant date	Sep 2, 2025

Abstract

An aerosol generating system includes an aerosol generating device including a first vaporizer configured to generate a first aerosol by heating a first liquid composition, a second vaporizer configured to generate a second aerosol by heating a second liquid composition, and a controller configured to control the first vaporizer and the second vaporizer, and an aerosol generating article accommodated in the aerosol generating device and indirectly heated by heat generated by the first vaporizer and the second vaporizer, wherein the controller is configured to control power supplied to the first vaporizer and the second vaporizer, based on a first mode, in which a smokeless aerosol is generated, and a second mode, in which a transport amount of nicotine included in the aerosol generating article is adjusted.

First claim

The invention claimed is:

1. An aerosol generating system comprising:
an aerosol generating device comprising a first vaporizer configured to generate a first aerosol by heating a first liquid composition, a second vaporizer configured to generate a second aerosol by heating a second liquid composition, and a controller configured to control the first vaporizer and the second vaporizer; and
an aerosol generating article accommodated in the aerosol generating device and indirectly heated by heat generated by the first vaporizer and the second vaporizer,
wherein the controller is configured to control power supplied to the first vaporizer and the second vaporizer, based on a first mode, in which a smokeless aerosol is generated, and a second mode, in which a transport amount of nicotine included in the aerosol generating article is adjusted,
wherein the first vaporizer comprises a first hollow portion,
wherein the second vaporizer comprises a second hollow portion,
wherein the first vaporizer and the second vaporizer are detachably coupled to each other, and
wherein, in a state in which the first vaporizer and the second vaporizer are coupled, the first hollow portion and the second hollow portion form a hollow into which the aerosol generating article is inserted.

2. The aerosol generating system of claim 1 , wherein
the first vaporizer comprises a first liquid storage storing the first liquid composition,
the second vaporizer comprises a second liquid storage storing the second liquid composition, and
the first liquid storage and the second liquid storage are divided by a partition.

3. The aerosol generating system of claim 1 , wherein the first vaporizer and the second vaporizer are arranged to allow at least one of the first aerosol and the second aerosol to pass through the aerosol generating article.

4. The aerosol generating system of claim 1 , wherein the first liquid composition comprises a first moisturizer, and
the first moisturizer comprises a mixture in which vegetable glycerin and propylene glycol are mixed at a certain ratio.

5. The aerosol generating system of claim 4 , wherein a ratio of the vegetable glycerin to the propylene glycol in the first moisturizer is between about 4:1 and about 9:1.

6. The aerosol generating system of claim 1 , wherein
the second liquid composition comprises a second moisturizer, and
the second moisturizer only comprises propylene glycol.

7. The aerosol generating system of claim 1 , wherein the aerosol generating article comprises a tobacco medium container and a filter.

8. The aerosol generating system of claim 7 , wherein the nicotine is contained in the tobacco medium container.

9. The aerosol generating system of claim 7 , wherein the aerosol generating article further comprises a heat-conducting wrapper surrounding the tobacco medium container and configured to deliver, to the tobacco medium container, heat generated by the first vaporizer and the second vaporizer.

10. The aerosol generating system of claim 1 , wherein
the first vaporizer and the second vaporizer are configured to indirectly heat the aerosol generating article by heating the hollow.

11. The aerosol generating system of claim 10 , wherein the first vaporizer and the second vaporizer are configured to indirectly heat the aerosol generating article at a temperature ranging from about 150 degrees Celsius to about 250 degrees Celsius.

12. The aerosol generating system of claim 1 , wherein the controller is configured to, in the first mode, supply power only to the second vaporizer.

13. The aerosol generating system of claim 1 , wherein the controller is configured to, in the second mode, selectively supply power to the second vaporizer while supplying power to the first vaporizer.

14. The aerosol generating system of claim 1 , wherein
the aerosol generating device further comprises a communication unit configured to communicate with an external device,
the communication unit is configured to receive a remote control signal from the external device, and
the controller is configured to control power supplied to the first vaporizer and the second vaporizer, based on the remote control signal.

Assignees

• Kt & G Corp

Inventors

• Park In Su
• Ki Sung Jong
• Kim Young Joong
• Lee John Tae
• Jung Sun Hwan
• Jeoung Eun Mi

Classifications

• A24F40/50

  Control or monitoring · CPC title

• A24F40/42

  Cartridges or containers for inhalable precursors · CPC title

• A24F40/10

  Devices using liquid inhalable precursors · CPC title

• A24B15/167

  in liquid or vaporisable form, e.g. liquid compositions for electronic cigarettes · CPC title

• A24F40/65

  Devices with integrated communication means, e.g. wireless communication means · CPC title