CN-122004539-A - Aerosol generating article and aerosol generating system

CN122004539ACN 122004539 ACN122004539 ACN 122004539ACN-122004539-A

Abstract

The present application provides an aerosol-generating article and an aerosol-generating device. The aerosol-generating article comprises a media rod and a filter rod aligned along a longitudinal direction of the aerosol-generating device. The media wand includes a media portion that receives media and at least one airflow path formed through the media portion in a longitudinal direction.

Inventors

ZHENG ZAISHENG
JIN DONGXIAN
JIN LONGHUAN
AN BINGLONG
LI ZHENGLAI

Assignees

韩国烟草人参公社

Dates

Publication Date: 20260512
Application Date: 20230208
Priority Date: 20220209

Claims (15)

1. An aerosol-generating article comprising: A first end portion, which is an upstream-side end portion; A second end portion which is a downstream end portion opposite to the first end portion; Filter tip rod, and A dielectric rod aligned with the filter rod in a longitudinal direction from the first end toward the second end and disposed in an upstream direction of the filter rod, Wherein, the dielectric rod includes: A medium section that accommodates a medium; a main air flow path formed through the center of the medium portion, and A plurality of sub-air flow paths formed in parallel with the main air flow path around the main air flow path.
2. An aerosol-generating article according to claim 1, wherein each of the plurality of sub-airflow paths has a cross-sectional area that is smaller than a cross-sectional area of the main airflow path.
3. An aerosol-generating article according to claim 1, wherein the media rod further comprises: A package which covers the medium portion of the medium rod, and And a side air flow path formed along the longitudinal direction as a space between the medium portion and the package.
4. An aerosol-generating article according to claim 1, wherein a cross-section of each of the plurality of sub-airflow paths in a direction perpendicular to the longitudinal direction comprises a curve.
5. An aerosol-generating article according to claim 1, wherein at least two of the plurality of sub-airflow paths are radially spaced apart from the main airflow path by different distances.
6. An aerosol-generating article according to claim 3, wherein at least two of the plurality of sub-airflow paths radially overlap between the main airflow path and the package.
7. An aerosol-generating article according to claim 1, wherein the medium portion is circular in cross-section in a direction perpendicular to the longitudinal direction.
8. An aerosol-generating article according to claim 1, wherein the filter rod comprises a cylindrical cellulose acetate filter.
9. An aerosol-generating article according to claim 1, wherein the filter rod comprises a tubular paper filter or a cellulose acetate filter.
10. An aerosol-generating system comprising: an aerosol-generating article according to claim 1, and An aerosol-generating device comprising a housing, an elongate cavity formed inside the housing for accommodating the aerosol-generating article, and a heating portion for heating the aerosol-generating article accommodated in the elongate cavity, Wherein the heating portion comprises an internal heating type heating element which heats the interior of the medium portion when the aerosol-generating article is received within the elongate cavity.
11. An aerosol-generating system according to claim 10, wherein the internal heating type heating element heats a central portion of the medium portion located adjacent the primary airflow path formed through the center of the medium portion when the aerosol-generating article is received within the elongate cavity.
12. An aerosol-generating system according to claim 10, wherein the internal heating type heating element is inserted into the main airflow path to heat a central portion of the media portion when the aerosol-generating article is housed within the elongate cavity.
13. An aerosol-generating system according to claim 11 or 12, wherein, The internal heating type heating element is a direct heating type heating element, The internal heating type heating element is in contact with a central portion of the medium portion.
14. An aerosol-generating system according to claim 10, wherein the internal heating type heating element is configured to protrude from an end of the elongate cavity.
15. An aerosol-generating system according to claim 10, wherein the internal heating type heating element comprises a plate-like heating element, a needle-like heating element or a rod-like heating element.

Description

Aerosol generating article and aerosol generating system The present application is a divisional application of the application patent application "aerosol-generating article and aerosol-generating system" with application number 202380009605.4, day 2023, month 2 and 8. Technical Field The following embodiments relate to aerosol-generating articles and aerosol-generating systems. Background Recently, there has been an increase in the demand for alternative articles that overcome the shortcomings of conventional cigarettes. For example, there is an increasing demand for devices for generating aerosols (e.g., heated tobacco products) by electrically heating cigarette rods. Accordingly, research into electrically heated aerosol-generating devices and cigarette rods (or aerosol-generating articles) applied thereto is actively underway. For example, korean patent publication No. 10-2017-0132323 discloses a non-combustion type flavor inhaler, a flavor inhalation component source unit, and an atomizing unit. Disclosure of Invention Technical problem to be solved It is an aspect according to embodiments to provide an aerosol-generating article comprising a media rod having a plurality of airflow paths to allow a thermally generated airflow to flow smoothly with an aerosol. It is an aspect according to embodiments to provide an aerosol-generating system that improves heating efficiency by providing a plurality of heating bodies and dispersing a heat source. Technical method for solving the problems An aerosol-generating article according to various embodiments includes a media rod and a filter rod aligned along a longitudinal direction of the aerosol-generating article, wherein the media rod may include a media portion configured to house a medium, and a plurality of airflow paths formed through the media portion along the longitudinal direction. In an embodiment, the air flow path may include a main air flow path formed through a central portion of the media portion and at least one sub air flow path formed around the main air flow path. In an embodiment, the sub-airflow path may have a smaller cross-sectional area than the cross-sectional area of the main airflow path. In an embodiment, the media bar may further include a wrapper wrapped around the media portion of the media bar, and a side air flow path formed between the media portion and the wrapper in the longitudinal direction. In an embodiment, a cross-section of the media portion taken perpendicular to the longitudinal direction may have one of a circular shape, an elliptical shape, a convex polygonal shape, and a concave polygonal shape. In an embodiment, the aerosol-generating article may further comprise an atomizing rod configured to house the aerosol-forming substrate, wherein the atomizing rod may be arranged at the upstream end of the media rod. In an embodiment, the aerosol-generating article may further comprise a soft capsule housed in at least one of the media rod, the filter rod, and the atomizing rod, wherein the soft capsule may be formed from a thermally decomposable material. An aerosol-generating system according to various embodiments may include an aerosol-generating article comprising a media rod comprising a media portion configured to house a media, a primary airflow path formed through the media portion in a longitudinal direction, and at least one secondary airflow path formed parallel to the primary airflow path around the primary airflow path, and an aerosol-generating device comprising a housing, an elongated cavity formed in the housing and configured to house the aerosol-generating article, and a heater configured to heat the aerosol-generating article housed in the elongated cavity. In an embodiment, the heater may comprise a first heating element which is inserted into the aerosol-generating article when the aerosol-generating article is received in the elongate cavity, and a second heating element which is positioned outside the aerosol-generating article when the aerosol-generating article is received in the elongate cavity. In an embodiment, the first heating element and the second heating element may be of a direct heating type, an induction heating type, or a hot air blowing heating type. In an embodiment, the maximum heating temperature of the first heating element may be lower than the maximum heating temperature of the second heating element. In an embodiment, the aerosol generated by the heat of the heater may move to the downstream side of the aerosol-generating article through the main airflow path and the sub airflow path. In an embodiment, the media stick may further comprise a media sheet wrapped around the outside surface of the media portion, a wrapper wrapped around the media sheet, and a side air flow path formed between the media sheet and the wrapper in the longitudinal direction. The aerosol generated by the heat of the heater may move through the sub-airflow path and the side airflow path to the downstrea