Method for producing a composite pane for a motor vehicle

Patent metadata

Field	Value
Publication number	US-11077650-B2
Application number	US-201716345842-A
Country	US
Kind code	B2
Filing date	Sep 21, 2017
Priority date	Oct 28, 2016
Publication date	Aug 3, 2021
Grant date	Aug 3, 2021

Abstract

A method for producing a composite pane for a motor vehicle includes heating the plastic film at least in the region of the LED into a fluid state by a heating source positioned on an outer surface of the first pane or the second pane or arranged at a distance from the outer surface of the first pane or the second pane, and introducing the LED into the plastic film into the fluid state with displacement of a predefined volume of the plastic film. After introducing the LED into the plastic film, the method includes laminating the first pane and the second pane with the interposed plastic film.

First claim

The invention claimed is:

1. A method for producing a composite pane for a motor vehicle, comprising:
providing a first pane and a second pane;
arranging a plastic film between the first pane and the second pane;
arranging a light emitting diode (LED) on a surface of the plastic film;
locally heating the plastic film at least in a region of the LED into a fluid state by a heating source positioned on an outer surface of the first pane or the second pane or arranged at a distance from the outer surface of the first pane or the second pane;
introducing the LED into the plastic film heated into the fluid state with displacement of a predefined volume of the plastic film;
after introducing the LED into the plastic film, laminating the first pane and the second pane with the interposed plastic film.

2. The method according to claim 1 , wherein the heating source heats the plastic film at least in the region of the LED with emission of radiant heat and/or convection heat.

3. The method according to claim 1 , wherein the heating source is includes a heating foil that is glued on the outer surface of the first pane or the second pane.

4. The method according to claim 3 , wherein the heating foil is glued exclusively onto a part of the outer surface of the first pane or of the second pane.

5. The method according to claim 1 , wherein the plastic film has a shape and is heated to a temperature of 50 to 150° C., and wherein the plastic film is cooled after being heated to the temperature of 50 to 150° C., the plastic film retaining its shape after cooling below a temperature of 50° C.

6. The method according to claim 5 , wherein the plastic film is heated to a temperature of 80 to 150° C.

7. The method according to claim 1 , wherein the LED is introduced into the plastic film heated into the fluid state while applying a force directed substantially perpendicular to the plastic film.

8. The method according to claim 1 , wherein the predefined volume of the plastic film is displaced substantially in a longitudinal direction of the plastic film upon introduction of the LED into the plastic film heated into the fluid state.

9. The method according to claim 1 , wherein the plastic film has a thickness, and wherein upon introduction of the LED into the plastic film heated into the fluid state, a volume of the plastic film in a direction of the thickness of the plastic film is displaced by the LED so that a remaining thickness of the plastic film after heating at a location where the LED is introduced is less than 90% of the thickness of the plastic film before heating.

Assignees

• Saint Gobain

Inventors

• Gillessen Stephan
• Bauerle Pascal
• Bris Jean Jacques

Classifications

• B29L2031/3052

  Windscreens · CPC title

• B32B2605/006

  Transparent parts other than made from inorganic glass, e.g. polycarbonate glazings · CPC title

• B32B17/10541 Primary

  comprising a light source or a light guide · CPC title

• B32B17/1055

  characterized by the resin layer, i.e. interlayer · CPC title

• B32B17/10036 Primary

  comprising two outer glass sheets · CPC title