Process for producing a cover with a glass pane and electrical function elements

• US 20050001456A1
• Filed: 06/30/2004
• Published: 01/06/2005
• Est. Priority Date: 07/01/2003
• Status: Active Grant

• Current Assignee: Webasto AG (Webasto Beteiligungs Verwaltung Gbr)
• Original Assignee: Webasto AG (Webasto Beteiligungs Verwaltung Gbr)
• Inventors: Erbeck, Gerit, Bohm, Hubert
• Granted Patent: US 7,360,306 B2
• Time in Patent Office: Days
• US Class Current: 296/215
• CPC Class Codes: B32B 17/10018 comprising only one glass sheet
• CPC Class Codes: B32B 17/10495 optoelectronic, i.e. optical valve
• CPC Class Codes: B32B 17/10761 containing vinyl acetal
• CPC Class Codes: B32B 17/1077 containing polyurethane
• CPC Class Codes: B32B 17/1088 by superposing a plurality of layered products
• CPC Class Codes: B32B 2037/1215 Hot-melt adhesive
• CPC Class Codes: B32B 2367/00 Polyesters, e.g. PET, i.e. polyethylene terephthalate
• CPC Class Codes: B32B 2369/00 Polycarbonates
• CPC Class Codes: B32B 2605/00 Vehicles
• CPC Class Codes: B32B 27/36 comprising polyesters
• CPC Class Codes: B60J 7/04 with rigid plate-like element or elements , e.g. open roofs with harmonica-type folding rigid panels B60J7/061 takes precedence
• CPC Class Codes: H01L 31/048 Encapsulation of modules
• CPC Class Codes: Y02E 10/50 Photovoltaic [PV] energy
• CPC Class Codes: Y02T 10/90 Energy harvesting concepts as power supply for auxiliaries' energy consumption, e.g. photovoltaic sun-roof
• CPC Class Codes: Y10T 29/4913 Assembling to base an electrical component, e.g., capacitor, etc.
• CPC Class Codes: Y10T 29/49155 Manufacturing circuit on or in base
• CPC Class Codes: Y10T 29/49622 Vehicular structural member making

Abstract

A process for producing a cover (11) with a glass pane (14) for a motor vehicle roof, in which, first, a combination film (10) with a shatter prevention film and electrical function elements (22, 24, 26, 28, 30) integrated into the combination film is produced, and then, the combination film is securely attached to a side of the pane, e.g., the side facing the vehicle interior. Furthermore the invention relates to a cover for a motor vehicle roof produced in this manner.

Claims

1. Process for producing a cover with a glass pane for a motor vehicle roof, comprising,

first producing a combination film having a shatter prevention film and electrical function elements integrated therein, and

then securely attaching the combination film to a side of the glass pane which, in use, face a vehicle interior space.

2. Process as claimed in claim 1, wherein the electrical function elements are applied to a first film by coating.

3. Process as claimed in claim 2, wherein said coating is performed by a vacuum coating or silk-screen printing process.

4. Process as claimed in claim 1, wherein the electrical function elements are cemented to a first film.

5. Process as claimed in claim 1, wherein the electrical function elements are provided with contact electrodes formed of a conductive polymer material.

6. Process as claimed in claim 5, wherein an insulation coating is applied to the electrical function elements after the contact electrodes are formed.

7. Process as claimed in claim 1, wherein the function elements are applied to a first film, then the electrical function elements are provided with electrical contacts, and then a second film is applied to the function elements.

8. Process as claimed in claim 7, wherein the first film is the shatter prevention film.

9. Process as claimed in claim 1, wherein the combination film with the electrical function elements is laminated onto the bottom of the pane using a hot-melt adhesive film or a cement.

10. Process as claimed in claim 9, wherein a laminator or autoclave is used for lamination.

11. Process as claimed in claim 1, wherein the electrical function elements are at least one element selected from the group consisting of electroluminescent elements, electrochrome elements, suspended particle device elements, liquid crystal elements, touch pads, light diffusing elements, thin film solar cells, transparent solar cells and organic light emitting diodes.

12. Process as claimed in claim 1, wherein the cover is transparent.

13. Process as claimed in claim 4, wherein the combination film is transparent at least in portions.

14. Process as claimed in claim in claim 1, wherein the cover is mounted securely in a roof opening.

15. Process as claimed in claim in claim 1, wherein the cover is adjustable in order to alternately close the roof opening and at least partially clear it.

16. Process as claimed in claim 8, wherein the shatter prevention film is a polycarbonate or polyethyleneterephthalate film.

17. Process as claimed in claim 8, wherein the shatter prevention film is provided with a perforation which is foamed into an edge foam of the cover.

18. Process as claimed in claim 16, wherein the shatter prevention film is provided with a perforation which is foamed into an edge foam of the cover.

19. Process as claimed in claim 9, wherein a PU (polyurethane) or acrylic resin cement is used.

20. Process as claimed in claim 9, wherein a PVB (polyvinylbutyral) or a TPU (thermoplastic polyurethane) hot-melt adhesive film is used.

21. Process as claimed in claim 1, wherein at least one of an IR and UV reflecting layer is incorporating into the combination film.

22. Process as claimed in claim 1, wherein the combination film is provided at various points with different electrical function elements.

23. Process as claimed in claim 1, wherein touch-sensitive switches are integrated into the combination film in order to switch the electrical function elements.

24. Cover for a motor vehicle roof, with a glass pane and a combination film which is formed of a shatter prevention film, a side of the shatter prevention film facing the glass pane being a carrier to which electrical function elements are applied and which is laminated onto the glass pane by a hot-melt adhesive film or a cement.