Aerosol generating device comprising a cartridge

Patent metadata

Field	Value
Publication number	US-2024225103-A1
Application number	US-202218000114-A
Country	US
Kind code	A1
Filing date	Aug 11, 2022
Priority date	Aug 13, 2021
Publication date	Jul 11, 2024
Grant date	—

Abstract

An aerosol generating device includes: a cartridge including a storage for storing the aerosol generating material and a first airflow passage through which airflow moves along a path surrounding the storage; and a main body including a coupling portion to which the cartridge is detachably coupled, wherein a gap is formed between the main body and the cartridge such that external air flows into the aerosol generating device through the gap.

First claim

1 . An aerosol generating device comprising:
a cartridge comprising a storage for storing an aerosol generating material, and a first airflow passage through which airflow moves along a path surrounding the storage; and a main body including a coupling portion to which the cartridge is detachably coupled, wherein a gap is formed between the main body and the cartridge such that external air flows into the aerosol generating device through the gap.

2 . The aerosol generating device of claim 1 , wherein
the cartridge further comprises an atomizer, the first airflow passage comprises an inlet portion through which the external air that has flown into the aerosol generating device flows into the cartridge and a bypass portion surrounding the storage, and the bypass portion connects the inlet portion to the atomizer.

3 . The aerosol generating device of claim 2 , wherein the bypass portion comprises a first portion extending along an outer wall of the storage in a longitudinal direction of the cartridge, a second portion extending in a direction crossing the longitudinal direction of the cartridge, and a third portion extending in the longitudinal direction of the cartridge.

4 . The aerosol generating device of claim 2 , wherein
the cartridge further comprises an atomizer, the first airflow passage comprises a discharge portion for guiding an aerosol to outside of the cartridge, and the discharge portion and the bypass portion is connected to the atomizer.

5 . The aerosol generating device of claim 4 , wherein
the cartridge further comprises a mouthpiece, and the mouthpiece comprises a second airflow passage of which one end is connected to the outside and another end is connected to the discharge portion.

6 . The aerosol generating device of claim 5 , wherein
the mouthpiece is movable between an open position and a closed position, and the second airflow passage is connected to the discharge portion when the mouthpiece is in the open position.

7 . The aerosol generating device of claim 5 , wherein
the main body further comprises a cover including an opening having a size corresponding to the mouthpiece, and the cover is coupled to the main body such that coupling between the cartridge and the main body is maintained.

8 . The aerosol generating device of claim 4 , wherein the cartridge further comprises:
a first housing in which the storage and the discharge portion are located; and a second housing in which the inlet portion is located.

9 . The aerosol generating device of claim 8 , wherein
the cartridge further comprises an O-ring located between the first housing and the second housing, and the O-ring closely seals a space between the first housing and the second housing.

10 . The aerosol generating device of claim 1 , wherein
the cartridge further comprises an atomizer, and the coupling portion comprises an accommodating groove accommodating at least a portion of the cartridge, and a connection terminal electrically connected to the atomizer.

11 . The aerosol generating device of claim 1 , wherein the cartridge further comprises:
an atomizer; a first conductor connected to one surface of the atomizer; and a second conductor connected to another surface of the atomizer.

12 . The aerosol generating device of claim 11 , wherein
the first conductor covers at least a portion of the one surface of the atomizer and at least a portion of an outer circumferential surface of the atomizer, and the second conductor elastically presses the atomizer in a direction from the other surface of the atomizer to the one surface of the atomizer.

13 . The aerosol generating device of claim 11 , wherein
the cartridge further comprises an circuit board electrically connected to the atomizer through the first conductor and the second conductor, and the circuit board comprises a resistor that eliminates noise from a signal applied to the atomizer.

14 . The aerosol generating device of claim 1 , wherein the cartridge further comprises:
an atomizer; a wick configured to absorb the aerosol generating material stored in the storage; and an absorbing plate arranged to cover at least a portion of the atomizer and configured to retain the aerosol generating material absorbed by the wick.

15 . The aerosol generating device of claim 1 , wherein
the main body further includes an inhalation detecting sensor, and the inhalation detecting sensor is located in an area of the main body facing an outer circumferential surface of the cartridge coupled to the main body, and configured to detect the external air flowing into the aerosol generating device through the gap.

Assignees

• Kt & G Corp

Inventors

• Lee Won Kyeong
• Lee Jong Sub
• Cho Byung Sung

Classifications

• A24F7/00

  Mouthpieces for pipes; Mouthpieces for cigar or cigarette holders · CPC title

• A24F40/51

  Arrangement of sensors · CPC title

• A24F40/05

  Devices without heating means · CPC title

• A24F40/44

  Wicks · CPC title

• A24F40/46

  Shape or structure of electric heating means · CPC title