Heatable laminated vehicle window with improved heat distribution

US10703072B2 · kind B2 · utility

Assignee

• SAINT-GOBAIN GLASS FRANCE · FR

Inventors

• Marcel KLEIN · Baesweiler, DE
• Valentin SCHULZ · Niederzier, DE

Key dates

• Filing date: Sep 29, 2016
• Grant date: Jul 7, 2020
• Expiry date: Jul 27, 2037

Classification

• Technology area (CPC H): Electricity
• CPC primary: H05B2203/037
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

A heatable laminated vehicle window for separating a vehicle interior from an outer surrounding area is presented. The vehicle window includes an outer pane bonded to an inner pane via a thermoplastic intermediate layer. An electrically heatable coating of the vehicle window is electrically connected to two busbars such that by applying a supply voltage across the two bus bars, a heating current that forms heating field flows between the two busbars. In one aspect, a metal element is arranged on or in the vehicle window such that heat is dissipated out of a region of the heating field that has elevated heat generation by means of thermal conduction of the metal element.