EP-4740759-A1 - AEROSOL GENERATING ARTICLE

EP4740759A1EP 4740759 A1EP4740759 A1EP 4740759A1EP-4740759-A1

Abstract

An aerosol generating article. The aerosol generating article comprises an aerosol generating matrix section (1), a functional section (2), and a wrapping layer (3). The functional section (2) comprises a cooling section (21), a supporting section (22), and a filtering section (23); the aerosol generating matrix section (1), the supporting section (22), the cooling section (21), and the filtering section (23) are sequentially arranged in the longitudinal direction; and the wrapping layer (3) wraps the periphery of the aerosol generating matrix section (1) and the periphery of the functional section (2), and side holes (3a) are formed in the part of the wrapping layer (3) located between the aerosol generating matrix section (1) and the filtering section (23). The side holes (3a) are located between the aerosol generating matrix section (1) and the filtering section (23), and the side holes (3a) introduce external airflow into the aerosol generating article, so that an aerosol temporarily stored between the aerosol generating matrix section (1) and the filtering section (23) can quickly flow to the filtering section (23), thereby improving the aerosol extraction efficiency and the aerosol release stability, and improving the vaping experience; and the temperature of the aerosol can be lowered by means of mixing contact between the external airflow and the aerosol.

Inventors

NI, JUN
DAI, Xuezhi
LI, WENFENG
TANG, JIANGUO
JIN, Zutao

Assignees

Smoore International Holdings Limited

Dates

Publication Date: 20260513
Application Date: 20240701

Claims (16)

An aerosol generating article, comprising: an aerosol generating substrate section formed with at least one gas passage, wherein the gas passage extends through at least one longitudinal end surface of the aerosol generating substrate section; a functional section comprising a cooling section, a support section, and a filter section, wherein the aerosol generating substrate section, the support section, the cooling section, and the filter section are arranged in sequence in a longitudinal direction; an enclosure layer arranged around an outer periphery of the aerosol generating substrate section and an outer periphery of the functional section, wherein at least one side hole is formed in a part of the enclosure layer located between the aerosol generating substrate section and the filter section.
The aerosol generating article according to claim 1, wherein at least one of an outer peripheral surface of the cooling section and an outer peripheral surface of the support section is formed with at least one vent hole, the vent hole being aligned with and in communication with the side hole.
The aerosol generating article according to claim 1, wherein at least one of the cooling section and the support section is formed with a hollow channel extending through both longitudinal end surfaces thereof.
The aerosol generating article according to claim 3, wherein a hydraulic diameter of the hollow channel of the support section is less than or equal to a hydraulic diameter of the hollow channel of the cooling section.
The aerosol generating article according to claim 3, wherein at least one vent hole is formed in parts of an outer peripheral surface of the cooling section and an outer peripheral surface of the support section aligned with the side hole, the vent hole fluidly connecting the side hole with the hollow channel.
The aerosol generating article according to claim 3, wherein at least one of the cooling section and the support section is formed with at least one side channel extending through both longitudinal end surfaces, the side channel being located on a transverse outer side of the hollow channel.
The aerosol generating article according to claim 6, wherein a flavoring substance is provided within the side channel.
The aerosol generating article according to claim 6, wherein a plurality of the side channels are provided, the side channels being arranged at intervals around an outer peripheral of the hollow channel.
The aerosol generating article according to claim 1, wherein the aerosol generating substrate section, the cooling section, the support section, and the filter section are cylindrical structures with the same outer diameter, central axes of the aerosol generating substrate section, the cooling section, the support section, and the filter section coinciding with one another and extending in the longitudinal direction, the cooling section being formed with a hollow channel extending through both longitudinal end surfaces of the cooling section, a projection of the hollow channel of the cooling section on a projection plane perpendicular to the longitudinal direction being circular.
The aerosol generating article according to claim 9, wherein the support section is formed with a hollow channel extending through both longitudinal end surfaces of the support section, a hydraulic diameter of the hollow channel of the support section being equal to a hydraulic diameter of the hollow channel of the cooling section.
The aerosol generating article according to claim 1, wherein the filter section is formed with a resistance-reducing channel extending through at least one longitudinal end of the filter section.
The aerosol generating article according to claim 1, wherein the enclosure layer defines at least one empty space which is a cavity, the side hole being formed in a part of a wall surface of the enclosure layer defining the cavity; the cavity is provided between the filter section and the cooling section; and/or the cavity is provided between the cooling section and the support section.
The aerosol generating article according to claim 1, wherein a hydraulic diameter of the side hole is from 0.1 mm to 0.7 mm.
The aerosol generating article according to claim 1, wherein a plurality of the side holes are provided, the plurality of side holes being arranged at intervals in a circumferential direction to form at least one air intake group.
The aerosol generating article according to claim 14, wherein the number of the air intake groups is from 1 to 7; and/or the number of side holes in each of the air intake groups is from 2 to 16.
The aerosol generating article according to claim 14, wherein a plurality of the air intake groups are provided, the plurality of air intake groups being arranged at intervals in the longitudinal direction, a distance between two adjacent air intake groups is greater than or equal to 0.5 mm.

Description

CROSS-REFERENCE TO RELATED APPLICATION The present application claims priority to the Chinese Patent Application No. 202310930047.7 filed on July 26, 2023, the application of which is hereby incorporated by reference in its entirety. TECHNICAL FIELD The present application relates to the field of aerosol generating technology, and in particular, to an aerosol generating article. BACKGROUND This section is intended to provide background or context for the embodiments of the present application. The inclusion of such descriptions in this section shall not be construed as an admission that they constitute prior art by reason of their inclusion in this section. The aerosol-generating substrate section may form an aerosol by means of combustion or by heating without combustion. Taking the aerosol-generating substrate section based on heating without combustion as an example, the aerosol-generating substrate section is heated by an external heat source to a temperature just sufficient to emit the aerosol, without causing the combustion of the aerosol-generating substrate section. During use, the aerosol is released by heating the aerosol-generating substrate section. In the related technology, the aerosol released by the aerosol-generating substrate section has a relatively high temperature, resulting in a scalding sensation when the user inhales the aerosol. SUMMARY In view of the above, embodiments of the present application aim to provide an aerosol generating article capable of reducing the temperature of the aerosol. To achieve the above aim, the present application provides an aerosol generating article, comprising: an aerosol generating substrate section formed with at least one gas passage, the gas passage extends through at least one longitudinal end surface of the aerosol generating substrate section;a functional section comprising a cooling section, a support section, and a filter section, the aerosol generating substrate section, the support section, the cooling section, and the filter section are arranged in sequence in a longitudinal direction;an enclosure layer arranged around an outer periphery of the aerosol generating substrate section and an outer periphery of the functional section, at least one side hole is formed in a part of the enclosure layer located between the aerosol generating substrate section and the filter section. In one embodiment, at least one of an outer peripheral surface of the cooling section and an outer peripheral surface of the support section is formed with at least one vent hole. The vent hole is aligned with and in communication with the side hole. In one embodiment, at least one of the cooling section and the support section is formed with a hollow channel extending through both longitudinal end surfaces. In one embodiment, a hydraulic diameter of the hollow channel of the support section is less than or equal to a hydraulic diameter of the hollow channel of the cooling section. In one embodiment, at least one vent hole is formed in parts of an outer peripheral surface of the cooling section and an outer peripheral surface of the support section aligned with the side hole. The vent hole fluidly connects the side hole with the hollow channel. In one embodiment, at least one of the cooling section and the support section is formed with at least one side channel extending through both longitudinal end surfaces. The side channel is located on a transverse outer side of the hollow channel. In one embodiment, a flavoring substance is provided within the side channel. In one embodiment, a plurality of the side channels are provided, the side channels are arranged at intervals around an outer peripheral of the hollow channel. In one embodiment, the aerosol generating substrate section, the cooling section, the support section, and the filter section are cylindrical structures with the same outer diameter. Central axes of the aerosol generating substrate section, the cooling section, the support section, and the filter section coincide with one another and extend in the longitudinal direction. The cooling section is formed with a hollow channel extending through both longitudinal end surfaces of the cooling section. A projection of the hollow channel of the cooling section on a projection plane perpendicular to the longitudinal direction is circular. In one embodiment, the support section is formed with a hollow channel extending through both longitudinal end surfaces of the support section. A hydraulic diameter of the hollow channel of the support section is equal to a hydraulic diameter of the hollow channel of the cooling section. In one embodiment, the filter section is formed with a resistance-reducing channel extending through at least one longitudinal end of the filter section. In one embodiment, the enclosure layer defines at least one empty space which is a cavity. The side hole is formed in a part of a wall surface of the enclosure layer defining the cavity. The cavi