EP-4740761-A1 - AEROSOL GENERATING SUBSTRATE, AEROSOL GENERATING PRODUCT, AND ELECTRONIC ATOMIZING DEVICE

EP4740761A1EP 4740761 A1EP4740761 A1EP 4740761A1EP-4740761-A1

Abstract

The present application relates to the technical field of aerosol generation, and provides an aerosol generating substrate, an aerosol generating product, and an electronic atomizing device. The aerosol generating substrate comprises a base part and a plurality of subunits, wherein the plurality of subunits are located on the outer side of the base part in a first direction, the plurality of subunits are spaced in a second direction of the base part, and the space between every two adjacent subunits is a gap space, wherein the first direction intersects with the second direction. The outer surface of each subunit receives heat and then transfers the heat to the base part, where the heat is transferred from outside to inside; the aerosol generating substrate is provided with the gap spaces, and the gap spaces play a role in collecting and circulating aerosol; a subunit can release vapor in an inward direction and an outward direction, and further, the subunit can release aerosol to the gap spaces on two sides in the second direction, thereby obtaining a clear aerosol release path, avoiding the situation that the aerosol cannot be released in time, and thus improving the aerosol extraction efficiency.

Inventors

LI, HANG
LIU, MING
LI, YONGFU
SONG, BIN
CHEN, Xiaopei
NI, JUN
TANG, JIANGUO

Assignees

Smoore International Holdings Limited

Dates

Publication Date: 20260513
Application Date: 20240618

Claims (20)

An aerosol generating substrate, comprising: a base part; and a plurality of subparts located at an outer side of the base part in a first direction, the plurality of subparts being spaced apart from each other in a second direction of the base part, and a space between any two adjacent subparts of the plurality of subparts being a gap space, wherein the first direction and the second direction intersect with each other.
The aerosol generating substrate according to claim 1, wherein each of the plurality of subparts comprises a first portion and at least one second portion, the second portion and the first portion are arranged in the first direction, and a dimension of the first portion in the second direction is greater than a dimension of the second portion in the second direction; the second portion connects the base part and the first portion, or the first portion connects the base part and the second portion.
The aerosol generating substrate according to claim 2, wherein each of the plurality of subparts comprises one first portion and a plurality of second portions, the plurality of second portions are spaced apart from each other in the second direction and located at an inner side of the first portion, and the plurality of second portions connect the base part and the first portion.
The aerosol generating substrate according to claim 2, wherein a spacing between any two adjacent first portions in the second direction is a first spacing, and a ratio of the dimension of the first portion in the second direction to the first spacing is between 10:1 and 1:1.
The aerosol generating substrate according to claim 2, wherein a wall thickness of the first portion ranges from 0.1 mm to 0.5 mm.
The aerosol generating substrate according to claim 2, wherein a dimension of the second portion in the first direction ranges from 0.5 mm to 5 mm.
The aerosol generating substrate according to claim 2, wherein a ratio of the dimension of the first portion in the second direction to a dimension of the second portion in the first direction ranges from 1:2 to 2:1.
The aerosol generating substrate according to claim 1, wherein a difference between a maximum wall thickness and a minimum wall thickness of the aerosol generating substrate is a first difference, and a percentage of the first difference to the minimum wall thickness of the aerosol generating substrate ranges from 0% to 100%.
The aerosol generating substrate according to claim 1, wherein taking a plane perpendicular to a third direction as a projection plane, a hydraulic diameter of a projection shape of the aerosol generating substrate ranges from 5 mm to 15 mm.
The aerosol generating substrate according to claim 1, wherein a number of the plurality of subparts is between 6 and 30.
The aerosol generating substrate according to claim 1, wherein a minimum spacing between the any two adjacent subparts in the second direction ranges from 0.1 mm to 1 mm.
The aerosol generating substrate according to claim 1, wherein taking a plane perpendicular to a third direction as a projection plane, a ratio of a total projection area of all of the plurality of subparts to a total projection area of all the gap spaces ranges from 1:9 to 1:1.
The aerosol generating substrate according to claim 1, wherein the base part is a plate-like structure, and a wall thickness direction of the base part is consistent with the first direction; or the base part is a cylindrical structure.
The aerosol generating substrate according to claim 1, wherein at least one air passage is formed inside the base part and penetrates through at least one end of the base part in a third direction.
The aerosol generating substrate according to claim 14, wherein there are a plurality of air passages arranged spaced apart from each other.
The aerosol generating substrate according to claim 1, wherein a heat generating layer is arranged at an outer side of the aerosol generating substrate, and the heat generating layer is arranged on outer surfaces of the plurality of subparts and is configured to heat the plurality of subparts; and/or taking a plane perpendicular to a third direction as a projection plane, a projection shape of the aerosol generating substrate is circular, elliptical or polygonal.
The aerosol generating substrate according to claim 1, wherein the plurality of subparts are located at an outermost side of the aerosol generating substrate in the first direction; and/or taking a plane perpendicular to a third direction as a cross section, a cross section at any position of each of the plurality of subparts is identical, wherein the first direction and the third direction are perpendicular to each other.
The aerosol generating substrate according to claim 1, wherein the first direction and the second direction are perpendicular to each other; or the first direction is a radial direction, and the second direction is a circumferential direction.
An aerosol generating article, comprising: the aerosol generating substrate according to any one of claims 1 to 18; and a functional section arranged at an end of the aerosol generating substrate in a third direction, the functional section comprising at least a filter section configured to filter an aerosol.
An electronic atomizing device, comprising: the aerosol generating article according to claim 19; and a heating member arranged at an outer side of each of the plurality of subparts in the first direction, the heating member being configured to heat the aerosol generating substrate to generate the aerosol.

Description

CROSS-REFERENCE TO RELATED APPLICATION The present application claims priority to Chinese Patent Application No. 202310818339.1, filed on July 04, 2023, the contents of which are hereby incorporated by reference in its entirety. TECHNICAL FIELD The present application relates to the technical field of aerosol generation, and in particular to an aerosol generating substrate, an aerosol generating article, and an electronic atomizing device. BACKGROUND The aerosol generating substrate may form an aerosol by ignition or form an aerosol by heating without combustion. Taking an aerosol generating substrate that is heated without combustion as an example, the aerosol generating substrate is heated by an external heat source, so that the aerosol generating substrate is heated just enough to generate an aerosol, the aerosol generating substrate will not burn, and the aerosol is released by heating the aerosol generating substrate in use. In the related art, the density of the substancial substrate of the aerosol generating substrate is high, which leads to the fact that the aerosol cannot be released in time, and the extraction efficiency of the aerosol is greatly reduced. SUMMARY In view of this, embodiments of the present application desire to provide an aerosol generating substrate, an aerosol generating article, and an electronic atomizing device which can improve the extraction efficiency of an aerosol. In order to achieve the above object, an embodiment of the present application provides an aerosol generating substrate, including: a base part; anda plurality of subparts located at an outer side of the base part in a first direction, in which the plurality of subparts are spaced apart from each other in a second direction of the base part, and a space between any two adjacent subparts of the plurality of subparts is a gap space, in which the first direction and the second direction intersect with each other. In some embodiments, each of the plurality of subparts includes a first portion and at least one second portion, the second portion and the first portion are arranged in the first direction, and a dimension of the first portion in the second direction is greater than a dimension of the second portion in the second direction. The second portion connects the base part and the first portion, or the first portion connects the base part and the second portion. In some embodiments, each of the plurality of subparts includes one first portion and a plurality of second portions, the plurality of second portions are spaced apart from each other in the second direction and located at an inner side of the first portion, and the plurality of second portions connect the base part and the first portion. In some embodiments, a spacing between any two adjacent first portions in the second direction is a first spacing, and a ratio of the dimension of the first portion in the second direction to the first spacing is between 10:1 and 1:1. In some embodiments, a wall thickness of the first portion ranges from 0.1 mm to 0.5 mm. In some embodiments, a dimension of the second portion in the first direction ranges from 0.5 mm to 5 mm. In some embodiments, a ratio of the dimension of the first portion in the second direction to a dimension of the second portion in the first direction ranges from 1:2 to 2:1. In some embodiments, a difference between a maximum wall thickness and a minimum wall thickness of the aerosol generating substrate is a first difference, and a percentage of the first difference to the minimum wall thickness of the aerosol generating substrate ranges from 0% to 100%. In some embodiments, taking a plane perpendicular to a third direction as a projection plane, a hydraulic diameter of a projection shape of the aerosol generating substrate ranges from 5 mm to 15 mm. In some embodiments, a number of the plurality of subparts is between 6 and 30. In some embodiments, a minimum spacing between the any two adjacent subparts in the second direction ranges from 0.1 mm to 1 mm. In some embodiments, taking a plane perpendicular to a third direction as a projection plane, a ratio of a total projection area of all of the plurality of subparts to a total projection area of all the gap spaces ranges from 1:9 to 1:1. In some embodiments, the base part is a plate-like structure, and a wall thickness direction of the base part is consistent with the first direction; or the base part is a cylindrical structure. In some embodiments, at least one air passage is formed inside the base part and penetrates through at least one end of the base part in a third direction. In some embodiments, there are a plurality of air passages arranged spaced apart from each other. In some embodiments, a heat generating layer is arranged at an outer side of the aerosol generating substrate, and the heat generating layer is arranged on outer surfaces of the plurality of subparts and is configured to heat the plurality of subparts; and/or taking a pla