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Film heater

A thin-film heater and heating chamber technology, applied in ohmic resistance heating, electric heating devices, tobacco, etc., can solve the problems of increased manufacturing cost, increased thermal mass, and expensive polyimide.

Pending Publication Date: 2022-04-12
ДЖЕЙТИ ИНТЕРНЕШНЛ С.А.
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This results in increased thermal mass and thus suboptimal heat transfer to the heating chamber
In addition, polyimide is relatively expensive, increasing the manufacturing cost of devices incorporating thin film polyimide heaters

Method used

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Embodiment Construction

[0055] figure 1 A membrane 100 is schematically shown comprising a flexible heating element 20 and a flexible electrically insulating backing film 30 supporting the heating element 20, wherein the backing film 30 comprises a fluoropolymer or PEEK. Fluoropolymers and PEEK have a number of favorable properties that are maintained over a wide range of operating temperatures, and thus can be used as the dielectric layer in thin film heater 100 . In particular, these materials have improved electrical insulation properties over conventional materials, which means that the thickness of the film can be reduced to reduce thermal mass and enhance heat transfer from the heating element to the structure to be heated, such as the heating chamber of an aerosol generating device. ) transmission.

[0056] Fluoropolymers and PEEK are materials characterized as being highly resistant to solvents, acids and bases, and having good dielectric properties and maintaining their mechanical propertie...

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Abstract

A thin film heater and a method of manufacturing a thin film heater are described. The film heater comprises a flexible heating element and a flexible electrically insulating backing film supporting the heating element; wherein the backing film comprises one or two of a fluorine-containing polymer or polyether-ether-ketone. By using fluoropolymers or polyetheretherketones, improved dielectric and mechanical properties are provided, particularly suitable for use in applications of aerosol-generating devices.

Description

technical field [0001] The invention relates to a thin-film heater and a method for producing a thin-film heater. Background technique [0002] Thin film heaters are used in a wide variety of applications that often require a flexible low profile heater that can conform to the surface or object to be heated. One such application is in the field of aerosol generating devices, such as reduced risk nicotine delivery products, including electronic cigarettes and tobacco vapor products. Such a device heats the aerosol-generating substance within the heating chamber to generate vapor, and thus may employ thin film heaters conforming to the surface of the heating chamber to ensure efficient heating of the aerosol-generating substance within the chamber. [0003] Thin film heaters typically include a resistive heating element enclosed in a sealed envelope of flexible dielectric film, with contact points to the heating element for connection to a power source, usually soldered to th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A24F40/46H05B3/34
CPCH05B3/34H05B2203/003A24F40/46A24F40/20H05B3/16H05B3/54H05B3/0019H05B1/0252H05B3/04A24F40/57H05B3/36H05B2203/013
Inventor T.里韦尔E.J.加西亚加西亚
Owner ДЖЕЙТИ ИНТЕРНЕШНЛ С.А.
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