Light-emitting diode module for a vehicle, and productions

Patent metadata

Field	Value
Publication number	US-9630551-B2
Application number	US-201414580598-A
Country	US
Kind code	B2
Filing date	Dec 23, 2014
Priority date	Oct 27, 2008
Publication date	Apr 25, 2017
Grant date	Apr 25, 2017

Abstract

A light-emitting diode module, for a vehicle, includes a first transparent sheet having a first main face and a second main face and an edge face; the diodes each including an emitting chip able to emit one or more wavelengths in the visible, guided in the first sheet; a bracket supporting the diodes, extending as a border of the glazing and fastened to the glazing; and a seal against fluid(s), able to protect the chips and the light-emission volume of the chips before injection into the first sheet. An embodiment of the invention also relates to the manufacture of this module.

First claim

The invention claimed is:

1. A light-emitting module, comprising:
a glazing including two opposite main faces and an edge face, the glazing further including a first transparent sheet and a second transparent sheet that is laminated with the first transparent sheet, wherein at least part of a periphery of the second sheet extends beyond at least part of a periphery of the first transparent sheet so that a first main face of the second transparent sheet facing toward the first transparent sheet has a portion, located between said part of the periphery of the second sheet and said part of the periphery of the first transparent sheet, that is not laminated with the first transparent sheet;
a light source mounted to the glazing and configured to emit a radiation beam having a wavelength in the visible spectrum, the light source having an emitting surface, for emitting the radiation beam, positioned in said portion of the glazing that is located between said part of the periphery of the second sheet and said part of the periphery of the first transparent sheet, and
an encapsulation structure surrounding the edge face of the glazing and covering the light source.

2. The light-emitting module of claim 1 , wherein the light source includes a plurality of light-emitting diodes.

3. The light-emitting module of claim 1 , comprising a bracket for mounting the light source to the glazing.

4. The light-emitting module of claim 3 , wherein the bracket is attached to said portion of the second transparent sheet.

5. The light-emitting module of claim 3 , wherein the bracket is mounted to one or two of the two opposite main faces of the first transparent sheet.

6. The light-emitting module of claim 5 , wherein the first transparent sheet includes a first main face that faces the first main face of the second transparent sheet and a second main face that is opposite the first main face, and wherein the bracket is mounted to the second main face of the first transparent sheet.

7. The light-emitting module of claim 1 , wherein the emitting surface of the light source is arranged to face an edge face of the first transparent sheet that defines said part of the periphery of the first transparent sheet so that, in use, the radiation beam enters the first transparent sheet via the edge face of the first transparent sheet.

8. The light-emitting module of claim 1 , wherein the encapsulation structure includes a polymeric encapsulation that extends from said part of the periphery of the second sheet to said part of the periphery of the first transparent sheet.

9. The light-emitting module of claim 8 , wherein the polymeric encapsulation extends beyond the edge face of the glazing and covers at least a portion of one of the two opposite main faces of the glazing.

10. The light-emitting module of claim 9 , wherein the rectangular strip is glued to one of the main faces of the first and/or second transparent sheets.

11. The light-emitting module of claim 8 , wherein the polymeric encapsulation is flush with an exterior main face of the second transparent sheet that is opposite the first main face of the second transparent sheet.

12. The light-emitting module of claim 8 , wherein the polymeric encapsulation covers a portion of a main face of the first transparent sheet.

13. The light-emitting module of claim 8 , wherein the first transparent sheet includes a first main face that faces the first main face of the second transparent sheet and a second main face that is opposite the first main face, wherein the polymeric encapsulation covers at least part of the second main face of the first transparent sheet.

14. The light-emitting module of claim 8 , comprising a bracket for mounting the light source to the glazing, wherein the polymeric encapsulation covers the bracket.

15. The light-emitting module of. claim 1 , wherein the first transparent sheet and the second transparent sheet are glass sheets.

16. The light-emitting module of claim 1 , wherein the encapsulation structure forms a seal against one or more fluids for protecting the light source.

17. The light-emitting module of claim 1 , comprising a lamination interlayer arranged between the first transparent sheet and the second transparent sheet.

18. The light-emitting module of claim 1 , comprising a seal arranged between the light source and the encapsulation structure.

19. The light-emitting module of claim 18 , wherein the seal comprises an encapsulation material that is made of polyurethane or of a flexible thermoplastic chosen from a thermoplastic elastomer (TPE), polyvinyl chloride (PVC) and ethylene-propylene-diene-terpolymer (EPDM).

20. The light-emitting module of claim 1 , comprising a bracket for mounting the light source to the glazing, wherein the bracket is a rectangular strip that is fastened to one of the main faces of the first and/or second transparent sheets.

21. A roof for a vehicle comprising the light-emitting module of claim 1 .

22. A light-emitting module, comprising:
a glazing including two opposite main faces and an edge face, the glazing further including a first transparent glass sheet and a second transparent glass sheet that is laminated with the first transparent sheet via a lamination polymeric sheet arranged between the first transparent glass sheet and the second transparent glass sheet;
a light source mounted to the glazing and configured to emit a radiation beam having a wavelength in the visible spectrum, the light source having an emitting surface, for emitting the radiation beam, toward an edge face of the glazing;
a bracket for supporting the light source, the bracket mounted to at least one of the main faces of the first transparent glass sheet and the second transparent glass sheet, and
a polymeric encapsulation structure surrounding the edge face of the glazing and covering the bracket.

Assignees

• Saint Gobain

Inventors

• Verrat-Debailleul Adèle
• Mottelet Béatrice

Classifications

• B32B17/10541

  comprising a light source or a light guide · CPC title

• B60Q3/208

  Sun roofs; Windows · CPC title

• G02B6/0076

  Stacked arrangements of multiple light guides of the same or different cross-sectional area · CPC title

• G02B6/0068

  Arrangements of plural sources, e.g. multi-colour light sources · CPC title

• B32B17/10155

  Edge treatment or chamfering · CPC title