Flexible and stretchable heaters of high robustness for automotive applications
US11479286B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2019 |
| Grant date | Oct 25, 2022 |
| Priority date | — |
| Expiry date | Apr 20, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B2203/013
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A flexible electric heating device includes a planar flexible carrier foil, at least two electrically conductive bus lines attached to a surface of the carrier foil, and at least one electric heating member, including first and second electrically conductive electrodes, electrically connected to one of the bus lines. Each electrode has at least one curved edge, wherein the curved edges are located at a distance and are facing each other. The heating member further includes a resistive heater layer, at least partially overlapping the curved edges of the electrodes to form a resistive connecting region. The curved edges are arranged such that locations of the resistive connecting region are facing the first electrode or the second electrode in directions parallel to at least three mutually orthogonal directions that lie in the carrier foil, wherein one of the orthogonal directions is aligned parallel to an edge of the carrier foil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.