Heat generating body and aerosol generating device

By forming a conductive heating film on the surface of the heating element substrate and covering it with a protective film, the problems of low temperature control accuracy and short service life in the prior art are solved, and uniform heating of the heating element and extended service life are achieved.

CN116349941BActive Publication Date: 2026-06-05ALD GRP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ALD GRP
Filing Date
2021-12-28
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

The heating element of existing heated non-combustible electronic cigarettes has low temperature control accuracy because the heating circuit and temperature measuring circuit are printed separately. Furthermore, it is prone to localized overheating during long-term use, which affects its service life.

Method used

A conductive heating film is formed on the substrate surface of the heating element, and a protective film is covered on its surface. The conductive heating film material includes nickel, nickel alloy, platinum, platinum alloy, titanium, titanium alloy, etc., and the protective film material includes silicon dioxide, titanium dioxide, aluminum nitride, silicon carbide, etc., which are formed by physical vapor deposition, chemical plating or electroplating processes.

Benefits of technology

It improves the heating uniformity of the heating element, reduces the oxidation rate of the conductive heating film, and extends the service life of the heating element.

✦ Generated by Eureka AI based on patent content.

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    Figure CN116349941B_ABST
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Abstract

The application provides a heating body and an aerosol generating device. The heating body comprises: a base body provided with a through groove in the longitudinal direction, the base body comprising a main body part and two connecting parts, the two connecting parts being arranged on the two sides of the through groove and used for connecting electrode leads; a conductive heating film, the conductive heating film at least uniformly covering the upper surface and / or the lower surface of the base body; and a protective film, the material of the protective film comprising at least one of silicon dioxide, titanium dioxide, aluminum nitride and silicon carbide. The heating body provided by the application forms a conductive heating film on the surface of the base body of the heating body, and there is no heating track, the heating is uniform, and local high heat is not generated. Furthermore, the protective film is formed on the surface of the conductive heating film, the oxidation rate of the conductive heating film can be reduced, and the service life of the heating body can be prolonged.
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