Composite pane for a motor vehicle and motor vehicle having such a composite pane

• US 9,758,021 B2
• Filed: 06/12/2013
• Issued: 09/12/2017
• Est. Priority Date: 06/23/2012
• Status: Active Grant

• Current Assignee: Audi AG (Volkswagen AG)
• Original Assignee: Audi AG (Volkswagen AG)
• Inventors: Gansen, Tobias, Neudecker, Marcus, Pfaller, Daniel
• Primary Examiner(s): Vonch, Jeff
• Application Number:
  US14/410,757
• Publication Number:
  US 20150151611A1
• Time in Patent Office: 1,553 Days
• Field of Search: None
• CPC Class Codes: B32B 17/06 comprising glass as the main or only constituent of a layer, next to another layer of a specific material
• CPC Class Codes: B32B 17/10005 laminated safety glass or glazing
• CPC Class Codes: B32B 17/10036 comprising two outer glass sheets
• CPC Class Codes: B32B 17/10183 being not continuous, e.g. in edge regions
• CPC Class Codes: B32B 17/10201 Dielectric coatings
• CPC Class Codes: B32B 17/10449 Wavelength selective transmission
• CPC Class Codes: B32B 17/1055 characterized by the resin layer, i.e. interlayer
• CPC Class Codes: B32B 17/10935 as a preformed layer, e.g. formed by extrusion
• CPC Class Codes: B32B 17/10981 Pre-treatment of the layers
• CPC Class Codes: B32B 2250/04 4 layers
• CPC Class Codes: B32B 2307/30 having particular thermal properties
• CPC Class Codes: B32B 2307/412 Transparent
• CPC Class Codes: B32B 2367/00 Polyesters, e.g. PET, i.e. polyethylene terephthalate
• CPC Class Codes: B32B 2519/02 RFID tags
• CPC Class Codes: B32B 2605/006 Transparent parts other than made from inorganic glass, e.g. polycarbonate glazings
• CPC Class Codes: B32B 3/266 characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
• CPC Class Codes: B60J 1/001 Double glazing for vehicles
• CPC Class Codes: B60J 1/02 arranged at the vehicle front , e.g. structure of the glazing, mounting of the glazing on windscreen mounted antenna wire H01Q1/1271
• CPC Class Codes: B60J 1/20 Accessories, e.g. wind deflectors, blinds antiglare provisions B60J3/00; wind deflectors associated with roof openings B60J7/22; removable external protective coverings for windows or windscreens B60J11/08 ; aerodynamical spoiler for vehicles B62D35/00; heating arrangements specially adapted for transparent or reflecting areas H05B3/84
• CPC Class Codes: G02B 5/0808 having a single reflecting layer G02B5/0883, G02B5/0891 take precedence
• CPC Class Codes: H01Q 1/1271 : for mounting on windscreens
• CPC Class Codes: H01Q 1/2208 : associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems methods or arrangements for sensing record carriers, e.g. for reading patterns G06K7/00; record carrier for use with machines and with at least a part designed to carry digital markings G06K19/00
• CPC Class Codes: H01Q 1/325 : characterised by the location of the antenna on the vehicle
• CPC Class Codes: H04B 7/00 : Radio transmission systems, i.e. using radiation field H04B10/00, H04B15/00 take precedence
• CPC Class Codes: Y10T 428/24331 : including nonapertured component
• CPC Class Codes: Y10T 428/24851 : Intermediate layer is discontinuous or differential
• CPC Class Codes: Y10T 428/24868 : Translucent outer layer

Abstract

A composite pane for a motor vehicle, in particular the front pane, is formed from a first pane and a second pane, which are adhered to one another by way of a film. A coating reflecting infrared rays is applied to the film. The coating has at least one cut-out, within which a transponder is arranged between the two panes. A motor vehicle has a composite pane as described above.

Claims

1. A composite pane for a front pane of a motor vehicle, comprising:

a first pane;

a second pane;

a first layer disposed between the first and second panes, the first layer including a film to adhesively bond the first and second panes to each other;

a second layer disposed between one of the first and second panes and at least a portion of the first layer, the second layer including a coating applied to the film to reflect infrared rays, the coating having a cut-out in a portion thereof such that the cut-out is circumferentially surrounded by the coating; and

a transponder arranged in the second layer and in the cut-out in the portion of the coating such that the transponder is circumferentially surrounded by the coating,

wherein

the cut-out is arranged in only the coating, and the transponder is arranged in only the cut-out in the portion of the coating so that a thickness of the transponder is the same as or less than a thickness of the coating.

2. The composite pane as claimed in claim 1, wherein

the film is not disposed between the one of the first and second panes and the transponder, so that the transponder, which is arranged in the second layer and in the cut-out in the portion of the coating, emits data through the one of the first and second panes without disruption by the film.

3. The composite pane as claimed in claim 1, wherein

the transponder is a radio frequency identification (RFID) transponder.

4. The composite pane as claimed in claim 3, wherein

the transponder is an ultra-high frequency RFID transponder.

5. The composite pane as claimed in claim 1, wherein

the transponder transmits and receives data at a frequency of 868 MHz.

6. The composite pane as claimed in claim 1, wherein

the transponder transmits and receives data at a frequency of 915 MHz.

7. The composite pane as claimed in claim 1, wherein

the coating is vapor-deposited onto the film.

8. The composite pane as claimed in claim 1, wherein

the coating is a metal oxide coating.

9. The composite pane as claimed in claim 1, wherein

the coating is a silver oxide coating.

10. The composite pane as claimed in claim 1, wherein

the first and second panes are formed from glass.

11. The composite pane as claimed in claim 3, wherein

the transponder transmits and receives data at a frequency of 915 MHz.

12. The composite pane as claimed in claim 11, wherein

the coating is vapor-deposited onto the film.

13. The composite pane as claimed in claim 12, wherein

the coating is a silver oxide coating.

14. The composite pane as claimed in claim 13, wherein

the first and second panes are formed from glass.

15. A motor vehicle comprising:

a front window formed of a composite pane, the composite pane comprising;

a first pane;

a second pane;

a first layer disposed between the first and second panes, the first layer including a film to adhesively bond the first and second panes to each other;

a second layer disposed between one of the first and second panes and at least a portion of the first layer, the second layer including a coating applied to the film to reflect infrared rays, the coating having a cut-out in a portion thereof such that the cut-out is circumferentially surrounded by the coating; and

a transponder arranged in the second layer and in the cut-out in the portion of the coating such that the transponder is circumferentially surrounded by the coating,

wherein

the cut-out is arranged in only the coating, and the transponder is arranged in only the cut-out in the portion of the coating so that a thickness of the transponder is the same as or less than a thickness of the coating.