CN-121986960-A - Aerosol generating product

CN121986960ACN 121986960 ACN121986960 ACN 121986960ACN-121986960-A

Abstract

The application discloses an aerosol generating product and an aerosol generating system, wherein the aerosol generating product comprises an aerosol forming substrate sheet and a magnetic heating body sheet, the magnetic heating body sheet and the aerosol forming substrate sheet are laminated along the thickness direction, and are attached in a surface contact manner in a lamination area, so that a main heat conduction path from the magnetic heating body sheet to the aerosol forming substrate sheet is a path passing through the thickness direction of the lamination area. Compared with the related art, the magnetic heating element sheet and the aerosol-forming substrate sheet are laminated along the thickness direction and are in surface contact in the lamination area, so that the main conduction path of heat from the magnetic heating element sheet to the substrate is a short path penetrating through the lamination thickness direction, the heat conduction distance is shortened, the interface thermal resistance is reduced, the heating response speed and the energy utilization rate are improved, the substrate is heated more uniformly, the aerosol generation efficiency and consistency are improved, and the risk caused by local overheating is reduced.

Inventors

GUO HONGLI

Assignees

郭洪礼

Dates

Publication Date: 20260508
Application Date: 20260129
Priority Date: 20251107

Claims (16)

1. An aerosol-generating article comprising: Aerosol-forming substrate sheet: magnetic heating element sheet: The magnetic heating body sheet is used for converting electromagnetic energy into heat energy; The magnetic heating body sheet and the aerosol-forming substrate sheet are laminated along the thickness direction and are attached in a surface contact manner in a lamination area, and after the magnetic heating body sheet is heated by an alternating magnetic field, heat is conducted to the aerosol-forming substrate sheet through the lamination area by heat, so that the aerosol is generated by the aerosol-forming substrate sheet; The main heat conduction path of the magnetic heating element sheet directed to the aerosol-forming substrate sheet is a path passing through the thickness direction of the lamination region.
2. The aerosol-generating article according to claim 1, wherein the stack is arranged as any one of: one side of the magnetic heating element sheet is directly adhered with one side of the aerosol-forming substrate sheet, or The magnetic heating body sheet is arranged between two aerosol forming substrate sheets, or The aerosol forming substrate sheet is sandwiched between two layers of magnetic heating element sheets.
3. An aerosol-generating article according to claim 1, wherein the magnetically-heated sheet has at least one through-hole formed therethrough on opposite surfaces thereof.
4. An aerosol-generating article according to claim 1, wherein the aerosol-forming substrate sheet is provided with at least one through-hole extending through opposite surfaces thereof.
5. The aerosol-generating article according to claim 1, wherein the aerosol-forming substrate sheet is laminated with the magnetic-heater sheet and then shaped into a three-dimensional structure, the three-dimensional structure being one or more of a rolled, folded, stacked, and spiral structure.
6. The aerosol-generating article according to claim 1, wherein the magnetically-exothermic sheet is a sheet-like magnetically-exothermic material having an average thickness P of 1 μm or less and P. Ltoreq.200 μm.
7. The aerosol-generating article according to claim 6, wherein the sheet-like magnetic heat generating substance is made of a heating material that generates heat under the action of an alternating magnetic field.
8. The aerosol-generating article according to claim 7, wherein the sheet-like magnetic heat-generating substance has an anti-corrosion treatment layer on a surface thereof.
9. The aerosol-generating article according to claim 6, wherein the heating material has at least one curie temperature for controlling a heating temperature of the sheet-like magnetic heat generating substance, the curie temperature being 200 degrees celsius to 400 degrees celsius.
10. The aerosol-generating article according to claim 1, wherein the aerosol-forming substrate sheet has a sheet-like structure having an average thickness P of 0.1≤p≤1 mm.
11. The aerosol-generating article according to claim 1, comprising a housing having a cavity formed therein, the cavity having an air inlet side and an air outlet side in communication in an air flow direction, the magnetically-heated body sheet and the aerosol-forming substrate sheet being located between the air inlet side and the air outlet side.
12. An aerosol-generating article according to claim 11, wherein an aerosol-generating segment and an aerosol-treating segment are formed in the cavity in that order along the direction of the air flow, the magnetically-heated body sheet and the aerosol-forming substrate sheet being located in the aerosol-generating segment, the aerosol-treating segment being for filtering and/or cooling the aerosol generated by the aerosol-generating segment.
13. The aerosol-generating article according to claim 12, wherein the aerosol-treatment stage comprises a filter element and a cooling stage element, the filter element and the cooling stage satisfying any one of the following arrangements: Aerosol passes through the filter element and then the cooling section along the airflow direction, or The aerosol passes through the cooling section and then the filter element along the airflow direction, or The filter element and the cooling section are alternately arranged along the axial direction in the aerosol treatment section, or The filter elements are alternately laminated with the cooling segments.
14. The aerosol-generating article according to claim 13, wherein the outlet filter element comprises a porous filter material comprising one or more of acetate fibers, polyolefin fibers, cotton fibers; The cooling section comprises a cooling material comprising one or more of acetate, polylactic acid, PLA, paper.
15. The aerosol-generating article according to claim 14, comprising a mouthpiece connected to the air-out side and in communication with the cavity, the mouthpiece outer surface being provided with a microporous structure.
16. An aerosol-generating system, comprising: An aerosol-generating article according to any one of claims 1 to 15; the heating device comprises a controller, an electromagnetic assembly, an airflow sensor and a temperature sensor; The controller is electrically connected with the airflow sensor and the temperature sensor; The controller is used for controlling the electromagnetic assembly to generate an alternating magnetic field when the airflow sensor detects the sucked airflow, so that the alternating magnetic field acts on the magnetic heating body sheet in the aerosol-generating product to heat the aerosol-forming substrate sheet to generate aerosol.

Description

Aerosol generating product Technical Field The application relates to the technical field of aerosol generation, in particular to an aerosol generating product. Background Aerosol-generating articles are formed by heating a sheet of aerosol-forming substrate to release volatile components from the substrate and form an aerosol that is inhaled by a user. The traditional products generating gas in a combustion mode can generate high-temperature combustion reaction in the use process, and the aerosol forming substrate sheet is easy to generate various harmful substances under the combustion or near combustion condition, so that the human health is adversely affected. In order to reduce the risk of combustion, aerosol-generating articles that "heat without combustion" have been widely used in recent years because of their ability to volatilize, crack or evaporate in a relatively low temperature range. In the existing heating non-combustion aerosol-generating products, a common heating mode mainly depends on an external heat source to conduct or radiate heat to the aerosol-generating products, for example, an external heating plate, a heating needle, an induction coil, a microwave radiation source and the like are used for transferring heat to the inside of the aerosol-generating products, or a heating body positioned in the center of the products is used for conducting or radiating heat to an external aerosol-forming substrate sheet. The above-mentioned mode generally has the condition that heat needs to span the casing, air gap, insulating layer or multilayer material structure, leads to heat energy transfer path longer, thermal resistance is great, and then appears that the rate of heating up is slow, heat utilization is low, temperature distribution's scheduling problem. First, the 201780058421.1 patent to phillips describes a sheet-like element heated by resistance and then heating the aerosol-forming substrate sheet by the sheet-like element, which heating is less effective in heating the area of the aerosol-forming substrate sheet remote from the heating element due to the poor thermal conductivity of the aerosol-forming substrate sheet. Second, the central heating patents 201720885413.1,201821557475.0, 2020108039.6, 20191065172.X, et al, of Shenzhen Bodi technology development Co., ltd., heat is mostly transferred from the heating element to the aerosol-forming substrate sheet by contact conduction. This system also may be less effective in heating aerosol-forming substrate sheets away from the heating element. Thirdly, CN102762118B from philippi, EP3033950B1 describes the formation and morphology of a bundle of homogenised tobacco material, and the 202210755260.4 patent from phili describes the heating of an internal magnetic metal sheet by an alternating magnetic field, followed by aerosol formation of a substrate sheet. In this technique, a magnetic metal sheet is inserted into the middle of a bundle of aerosol-forming substrate sheets (a bundle of homogenized tobacco material), and the aerosol-forming substrate in the bundle of aerosol-forming substrate sheets is folded and wound randomly in a direction perpendicular to the cigarette, and the directions in which the magnetic metal sheet and the aerosol-forming substrate are in contact with each other are also random. The aerosol-forming substrate sheet area is much larger than the magnetic metal sheet area, and most aerosol-forming substrate sheets do not directly contact the magnetic metal sheet surface. The heat needs to penetrate the multiple layers of randomly oriented aerosol-forming substrate and air to heat the aerosol-forming substrate away from the magnetic metal sheet. Because the aerosol-forming substrate sheet has a low thermal conductivity, the magnetic metal sheet is transferred to the outside of the aerosol-forming substrate sheet at a relatively slow rate, requiring a long warm-up time, and the heating of the region of the aerosol-forming substrate sheet remote from the magnetic metal sheet may be poor. The diameter of the bullet of Phillips Morris company is about 7 mm, the maximum heat conduction distance is close to 3.5 mm, a plurality of layers of aerosol forming substrate sheets and air barriers are arranged in the distance, the heat conduction efficiency is low, and the heating effect on the aerosol forming substrate sheets far away from the magnetic metal sheets is poor. Disclosure of Invention In view of the shortcomings of the prior art, the present application provides an aerosol-generating article that shortens thermal energy transfer and increases heating efficiency for aerosol-forming substrate sheets to improve aerosol-generating stability and efficiency. The technical scheme of the application is realized as follows: The application provides an aerosol-generating article comprising an aerosol-forming substrate sheet and a magnetic heat-generating body sheet, the magnetic heat-generating body sheet and the aerosol-formin