Electrically heatable composite pane having a capacitive switching region

US10694587B2 · kind B2 · utility

Assignee

• SAINT-GOBAIN GLASS FRANCE · FR

Inventors

• Marcel KLEIN · Baesweiler, DE
• Dirk Doerner · Aachen, DE

Key dates

• Filing date: Nov 7, 2016
• Grant date: Jun 23, 2020
• Expiry date: Sep 29, 2037

Classification

• Technology area (CPC H): Electricity
• CPC primary: H05B2203/017
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

A heatable composite pane having a capacitive switching region. A substrate and a cover pane and at least one intermediate layer, which is arranged between the substrate and the cover pane. At least one heating wire and at least two busbars, which are arranged between the cover pane and the intermediate layer. The heating wire is electrically conductingly connected to the busbars such that, upon application of an electrical voltage to the busbars, a heating current flows through the heating wire, whereby the heating wire is heated. An electrically conductive contact wire, which is different from the at least one heating wire, is arranged between the substrate and the intermediate layer or between the cover pane and the intermediate layer. At least one region of the electrically conductive contact wire forms a capacitive switching region. The capacitive switching region has at least one contact region and one connection region.