Self-regulating electric heating film and preparation method and use thereof
US12279342B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2021 |
| Grant date | Apr 15, 2025 |
| Priority date | — |
| Expiry date | Feb 15, 2044 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B2214/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present disclosure provides a self-regulating electric heating film, including: an insulating isolation layer, an interdigital electrode arranged on the surface of the insulating isolation layer, a positive temperature coefficient coating covering the surface of a secondary electrode of the interdigital electrode, and an insulating protective layer covering the surface of a primary electrode of the interdigital electrode, wherein the positive temperature coefficient coating is not in contact with the primary electrode of the interdigital electrode, and the insulating protective layer overlaps the positive temperature coefficient coating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.