Global Patent Index - EP 3784489 A1

EP 3784489 A1 20210303 - LONG BUSBARS HAVING SEGMENTS FOR INCREASED ROBUSTNESS

Title (en)

LONG BUSBARS HAVING SEGMENTS FOR INCREASED ROBUSTNESS

Title (de)

LANGE SAMMELSCHIENEN MIT SEGMENTEN FÜR EINE ERHÖHTE ROBUSTHEIT

Title (fr)

BARRE COLLECTRICE ALLONGÉE COMPORTANT DES SEGMENTS LUI CONFÉRANT UNE ROBUSTESSE ACCRUE

Publication

EP 3784489 A1 20210303 (DE)

Application

EP 19712805 A 20190329

Priority

  • EP 18168755 A 20180423
  • EP 2019058016 W 20190329

Abstract (en)

[origin: WO2019206561A1] The invention relates to a vehicle window (1) which comprises, in this order, an outer glass pane, at least one outer laminated layer, at least one inner laminated layer and an inner glass pane, a PDLC layer stack being arranged between the outer laminated layer and the inner laminated layer, which PDLC layer stack is formed by a) an outer polymer substrate layer (2), b) an outer electrically conductive layer (3), c) a PDLC layer (4), d) an inner electrically conductive layer (5) and e) an inner polymer substrate layer (6), the inner electrically conductive layer (5) projecting, together with the inner polymer substrate layer (6), over a lateral portion of the PDLC layer stack, and the outer electrically conductive layer (3) projecting, together with the outer polymer substrate layer (2), over a different lateral portion of the PDLC layer stack, and a busbar (7, 8) being arranged in each case on the projecting inner electrically conductive layer (5) and the projecting outer electrically conductive layer (3), which busbar is connected to the electrically conductive layer (3, 5) of the PDLC layer stack by an electrically conductive intermediate layer (19), the busbars (7, 8) each being formed by at least two separate electrically conductive metal strips (9, 10, 11, 12, 13, 14) which are arranged one behind the other in the longitudinal direction, the adjacent, separate metal strips being connected by at least one bridge element (15) or an overlapping arrangement (16) so as to be electrically conductive. The advantages of the invention are: a more robust design of the busbar with respect to mechanical stresses, which allows the provision of longer busbars having a high level of robustness.

IPC 8 full level

B32B 17/10 (2006.01)

CPC (source: EP KR)

B32B 17/10036 (2013.01 - EP KR); B32B 17/10211 (2013.01 - EP KR); B32B 17/10504 (2013.01 - EP KR); B32B 17/10761 (2013.01 - EP KR); B32B 17/1077 (2013.01 - EP KR); B32B 17/10788 (2013.01 - EP KR); G02F 1/1334 (2013.01 - EP KR); G02F 1/13452 (2013.01 - KR); B32B 2307/102 (2013.01 - EP KR); B32B 2457/20 (2013.01 - KR); G02F 1/13452 (2013.01 - EP)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

WO 2019206561 A1 20191031; BR 112020021666 A2 20210126; CN 110636941 A 20191231; EP 3784489 A1 20210303; KR 20200144573 A 20201229; PE 20201260 A1 20201119

DOCDB simple family (application)

EP 2019058016 W 20190329; BR 112020021666 A 20190329; CN 201980000918 A 20190329; EP 19712805 A 20190329; KR 20207033399 A 20190329; PE 2020001637 A 20190329