Aerosol generating substrate, aerosol generating product, and aerosol generating device

Patent metadata

Field	Value
Publication number	US-2025380734-A1
Application number	US-202519304077-A
Country	US
Kind code	A1
Filing date	Aug 19, 2025
Priority date	Feb 20, 2023
Publication date	Dec 18, 2025
Grant date	—

Abstract

An aerosol generating substrate has a columnar shape. An interior of the aerosol generating substrate is provided with at least one insertion hole for a heating element. The at least one insertion hole extends along a length direction of the aerosol generating substrate and passes through at least one end of the aerosol generating substrate along the length direction.

First claim

What is claimed is:

1 . An aerosol generating substrate, wherein the aerosol generating substrate has a columnar shape, an interior of the aerosol generating substrate is provided with at least one insertion hole for a heating element, and the at least one insertion hole extends along a length direction of the aerosol generating substrate and passes through at least one end of the aerosol generating substrate along the length direction.

2 . The aerosol generating substrate of claim 1 , the aerosol generating substrate is provided with a channel that extends along the length direction of the aerosol generating substrate and passes through at least one end of the aerosol generating substrate along the length direction.

3 . The aerosol generating substrate of claim 2 , wherein the at least one insertion hole comprises only one insertion hole,
wherein the one insertion hole extends along the length direction of the aerosol generating substrate, and wherein the one insertion hole is provided on a central axis of the aerosol generating substrate.

4 . The aerosol generating substrate of claim 3 , wherein the channel comprises a plurality of air holes,
wherein the plurality of air holes are provided inside the aerosol generating substrate, and wherein, on a cross section perpendicular to the length direction, a cross section of the at least one insertion hole comprises an elongated strip and air holes of the plurality of air holes are symmetrically distributed about the at least one insertion hole.

5 . The aerosol generating substrate of claim 3 , wherein the channel comprises a plurality of air holes,
wherein the plurality of air holes are provided inside the aerosol generating substrate, wherein the at least one insertion hole is a columnar hole, and wherein, in a plane perpendicular to the length direction of the aerosol generating substrate, air holes of the plurality of air holes are symmetrically distributed with the at least one insertion hole as an origin.

6 . The aerosol generating substrate of claim 3 , wherein the channel comprises a plurality of air holes,
wherein the plurality of air holes are provided inside the aerosol generating substrate, wherein a central line of the at least one insertion hole along the extension direction coincides with a central axis of the aerosol generating substrate along the length direction, and wherein air holes of the plurality of air holes are arranged along a circumferential direction around a center of the at least one insertion hole.

7 . The aerosol generating substrate of claim 3 , wherein the channel comprises a plurality of air holes,
wherein the plurality of air holes are provided inside the aerosol generating substrate, wherein all air holes of the plurality of air holes are distributed on a plurality of trajectory lines, wherein air holes on an individual trajectory line of the plurality of trajectory lines are linearly arranged along a first direction, wherein the plurality of trajectory lines are arranged along a second direction, and wherein the first direction is not parallel to the second direction.

8 . The aerosol generating substrate of claim 7 , wherein the air holes on the individual trajectory line are linearly arranged along the first direction,
wherein the plurality of trajectory lines are arranged in parallel along the second direction, and wherein the first direction is perpendicular to the second direction.

9 . The aerosol generating substrate of claim 8 , wherein a distance between two adjacent air holes of the plurality of air holes on the individual trajectory line is equal to a distance between two adjacent trajectory lines of the plurality of trajectory lines.

10 . The aerosol generating substrate of claim 7 , wherein the air holes on the individual trajectory line are arranged along a circumferential direction around a center of the aerosol generating substrate, and
wherein the plurality of trajectory lines are arranged in concentric circles along radial directions of the aerosol generating substrate.

11 . The aerosol generating substrate of claim 7 , wherein at least one of:
the air holes on the individual trajectory line are repeatedly arranged and in directions extending outward along radial directions of the aerosol generating substrate, a hydraulic diameter on each trajectory line of the plurality of trajectory lines increases, and a spacing between air holes on two adjacent trajectory lines of the plurality of trajectory lines decreases.

12 . The aerosol generating substrate of claim 1 , wherein the aerosol generating substrate is an integral structure.

13 . The aerosol generating substrate of claim 1 , wherein the at least one insertion hole passes through two opposite ends of the aerosol generating substrate along the length direction, and
wherein, in a plane perpendicular to the length direction, a cross-sectional shape of the aerosol generating substrate comprises a circle.

14 . The aerosol generating substrate of claim 2 , wherein the aerosol generating substrate comprises a particle combination,
wherein a plurality of micropores are formed among particles of the particle combination, wherein at least some micropores of the plurality of the micropores are communicated with each other to form micro air passages communicated with the channel and/or the at least one insertion hole, and wherein a cross-sectional area of each micropore of the plurality of the micropores ranges from 0.7 nm 2 to 710 μm 2 , or a hydraulic diameter of the micropores of the plurality of the micro pores ranges from 10 nm to 30 μm.

15 . The aerosol generating substrate of claim 1 , wherein at least one of:
on a cross section perpendicular to the length direction, a cross-sectional shape of the at least one insertion hole comprises an elongated strip, a length of the cross section ranges from 1 mm to 40 mm, and a width of the cross section ranges from 0.05 mm to 3 mm.

16 . The aerosol generating substrate of claim 1 , wherein a cross-sectional shape of the at least one insertion hole comprises a circle, and
wherein an aperture of the at least one insertion hole ranges from 0.1 mm to 3 mm.

17 . The aerosol generating substrate of claim 1 , wherein the at least one insertion hole is a columnar hole, and
wherein a cross-sectional area of the at least one insertion hole ranges from 0.01 mm 2 to 7.1 mm 2 .

18 . An aerosol generating product, comprising:
the aerosol generating substrate of claim 1 ; a functional segment disposed at one end of the aerosol generating substrate along the length direction, the functional segment comprising at least a filter segment configured to filter an aerosol; and an outer wrapping layer wrapping around the functional segment and a circumferential outer portion of the aerosol generating substrate.

19 . The aerosol generating product of claim 18 , wherein the functional segment comprises a temperature-reducing segment, and
wherein the temperature-reducing segment is located between the filter segment and the aerosol generating substrate.

20 . An aerosol generating device for use with the aerosol generating product of claim 18 , the aerosol generating device comprising:
a heating component comprising a heating element, the heating element being configured to be inserted into the at least one insertion hole and heat the aerosol generating substrate so as to form an aerosol.

Assignees

• Smoore International Holdings Ltd

Inventors

• Tang Jianguo
• Wei Mingwen
• Ni Jun
• Liao Guimin

Classifications

• A24D1/20 Primary

  Cigarettes specially adapted for simulated smoking devices · CPC title

• A24F40/20

  Devices using solid inhalable precursors · CPC title

• A24F40/465

  specially adapted for induction heating · CPC title

• A24F40/46

  Shape or structure of electric heating means · CPC title

• A24B15/16

  of tobacco substitutes · CPC title