US 10,694,587 B2
Electrically heatable composite pane having a capacitive switching region
Marcel Klein, Baesweiler (DE); and Dirk Doerner, Aachen (DE)
Assigned to SAINT-GOBAIN GLASS FRANCE, Courbevoie (FR)
Appl. No. 15/740,789
Filed by SAINT-GOBAIN GLASS FRANCE, Courbevoie (FR)
PCT Filed Nov. 7, 2016, PCT No. PCT/EP2016/076885
§ 371(c)(1), (2) Date Dec. 28, 2017,
PCT Pub. No. WO2017/077128, PCT Pub. Date May 11, 2017.
Claims priority of application No. 15193394 (EP), filed on Nov. 6, 2015.
Prior Publication US 2018/0176995 A1, Jun. 21, 2018
Int. Cl. H05B 3/84 (2006.01); B32B 17/10 (2006.01)
CPC H05B 3/84 (2013.01) [B32B 17/10036 (2013.01); B32B 17/10174 (2013.01); B32B 17/10201 (2013.01); B32B 17/10385 (2013.01); B32B 17/10761 (2013.01); B32B 17/10788 (2013.01); B32B 2605/006 (2013.01); H05B 2203/011 (2013.01); H05B 2203/014 (2013.01); H05B 2203/016 (2013.01); H05B 2203/017 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A heatable composite pane having a capacitive switching region, comprising:
a substrate and a cover pane;
at least one intermediate layer, arranged between the substrate and the cover pane; and
at least one heating wire and at least two busbars, arranged between the cover pane and the intermediate layer, wherein the heating wire is electrically connected to the at least two busbars in a conducting manner, such that upon application of an electrical voltage to the at least two busbars, a heating current flows through the heating wire, whereby the heating wire is heated,
wherein an electrically conductive contact wire, 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,
wherein at least one region of the electrically conductive contact wire forms a capacitive switching region,
wherein the capacitive switching region has at least one contact region and one connection region, the contact region is electrically connected to the connection region, and the connection region is configured to be electrically connected to a sensor electronics system, and
wherein the contact wire is galvanically connected to one of the at least two busbars at precisely one connection region.