Mirror reflective element assembly for an exterior mirror assembly

• US 8,558,141 B2
• Filed: 08/30/2012
• Issued: 10/15/2013
• Est. Priority Date: 01/19/2005
• Status: Active Grant

• Current Assignee: Donnelly Corporation (Magna International Incorporated)
• Original Assignee: Donnelly Corporation (Magna International Incorporated)
• Inventors: Byers, Donald C., Habibi, Hamid, Lynam, Niall R., McCabe, Ian A.
• Primary Examiner(s): FUQUA, SHAWNTINA T
• Application Number:
  US13/599,178
• Publication Number:
  US 20120325794A1
• Time in Patent Office: 411 Days
• Field of Search: 219/202, 219/219, 359/265, 359/267, 359/871, 359/872, 359/883
• US Class Current: 219/219
• CPC Class Codes: B60R 1/088 using a cell of electrically changeable optical characteristic, e.g. liquid-crystal or electrochromic mirrors
• CPC Class Codes: G02B 7/1815 with cooling or heating systems cooling arrangements for laser mirrors H01S3/0401

Abstract

A variable reflectance mirror reflective element assembly for an exterior mirror assembly includes a heater pad disposed at the fourth surface of the rear substrate. The heater pad includes a first connector that electrically connects with the transparent electrically conductive coating disposed at the second surface of the front substrate, and a second connector that electrically connects with the metallic electrically conductive coating disposed at the third surface of the rear substrate. The heater pad includes third and fourth connectors that provide, at least in part, electrical conductive connection with a heating element. The connectors are part of a unitary multi-pin connector that is configured to connect with a corresponding wire harness connector to provide electrical power to the heating element and to the transparent electrically conductive coating and the metallic electrically conductive coating of the reflective element when the exterior minor assembly is mounted at the vehicle.

Claims

1. A variable reflectance mirror reflective element assembly for an exterior mirror assembly suitable for mounting at a side of a vehicle, said mirror reflective element assembly comprising:

a front substrate having a first surface and a second surface, said second surface having a transparent electrically conductive coating disposed thereat;

a rear substrate having a third surface and a fourth surface, said third surface having a mirror reflector disposed thereat and wherein said minor reflector comprises a metallic electrically conductive coating;

an electro-optic medium disposed between said front and rear substrates, wherein transmission of visible light through said reflective element is adjustable via electrically powering said transparent electrically conductive coating and said metallic electrically conductive coating;

a heater pad disposed at said fourth surface of said rear substrate, said heater pad having a heating element established thereat, said heating element generating heat when electrically powered;

said heater pad including a first electrically conductive connector;

said first electrically conductive connector providing, at least in part, electrical conductive connection with said transparent electrically conductive coating disposed at said second surface of said front substrate;

said heater pad including a second electrically conductive connector;

said second electrically conductive connector providing, at least in part, electrical conductive connection with said metallic electrically conductive coating disposed at said third surface of said rear substrate;

wherein said heater pad comprises a third electrically conductive connector and a fourth electrically conductive connector;

said third and fourth electrically conductive connectors providing, at least in part, electrical conductive connection with said heating element; and

wherein said first, second, third and fourth electrically conductive connectors are part of a unitary multi-pin connector that is configured to connect with a corresponding connector of a wire harness of a vehicle equipped with said exterior mirror assembly to provide electrical power to said heating element and to said transparent electrically conductive coating and said metallic electrically conductive coating of said reflective element when said exterior minor assembly is mounted at a side of the equipped vehicle.

2. The minor reflective element assembly of claim 1, wherein said unitary multi-pin connector comprises one of a plug connector and a socket connector and wherein said corresponding connector of said wire harness comprises another of a plug connector and a socket connector.

3. The mirror reflective element assembly of claim 1, wherein said heater pad comprises a first electrical trace that, at least in part, provides electrical conductive connection between said first electrically conductive connector and said transparent electrically conductive coating, and wherein said heater pad comprises a second electrical trace that, at least in part, provides electrical conductive connection between said second electrically conductive connector and said metallic electrically conductive coating, and wherein said first electrical trace is electrically isolated from said second electrical trace.

4. The mirror reflective element assembly of claim 3, wherein said heating element is electrically isolated from said first and second electrical traces.

5. The minor reflective element assembly of claim 1, wherein said heater pad has a frontmost surface and a rearmost surface, and wherein said frontmost surface of said heater pad attaches at said fourth surface of said rear substrate and wherein said unitary multi-pin connector is accessible at said rearmost surface of said heater pad.

6. The minor reflective element assembly of claim 5, wherein said frontmost surface of said heater pad is adhesively attached at said fourth surface of said rear substrate.

7. The minor reflective element assembly of claim 1, wherein said heater pad comprises a flexible polymeric pad.

8. The minor reflective element assembly of claim 7, wherein said flexible polymeric pad comprises polyester.

9. The minor reflective element assembly of claim 1, wherein said heating element comprises at least one electrically conductive trace disposed at said heater pad.

10. The minor reflective element assembly of claim 1, wherein a first electrically conductive element is established at said fourth surface of said rear substrate and is in electrically conductive continuity with said transparent electrically conductive coating, and wherein a second electrically conductive element is established at said fourth surface of said rear substrate and is in electrically conductive continuity with said metallic electrically conductive coating, wherein said first electrically conductive connector is electrically conductive connected with said first electrically conductive element and said second electrically conductive connector is electrically conductive connected with said second electrically conductive element when said heater pad is disposed at said fourth surface of said rear substrate.

11. The minor reflective element assembly of claim 10, wherein said second electrically conductive element comprises a conductive coating established at said fourth surface of said rear substrate.

12. The minor reflective element assembly of claim 10, wherein said second electrically conductive element comprises at least one conductive coating that is coated over an edge portion of said rear substrate.

13. The minor reflective element assembly of claim 1, wherein said unitary multi-pin connector is configured to connect to said corresponding connector of said wire harness via a snap type connection.

14. The minor reflective element assembly of claim 1, comprising a back plate attached to at least a portion of said heater pad.

15. The minor reflective element assembly of claim 14, wherein said back plate includes an aperture therethrough, and wherein said unitary multi-pin connector is disposed at said aperture when said back plate is attached to said at least a portion of said heater pad.

16. The minor reflective element assembly of claim 1, wherein said minor reflective element assembly comprises a transflective minor reflective element assembly.

17. The minor reflective element assembly of claim 16, wherein a photo sensor is disposed behind said rear substrate for detecting light passing through said transflective minor reflective element assembly, and wherein a light concentrating device is disposed behind said rear substrate for directing light onto a sensing surface of said photo sensor.

18. A variable reflectance mirror reflective element assembly for an exterior mirror assembly suitable for mounting at a side of a vehicle, said mirror reflective element assembly comprising:

a front substrate having a first surface and a second surface, said second surface having a transparent electrically conductive coating disposed thereat;

a rear substrate having a third surface and a fourth surface, said third surface having a mirror reflector disposed thereat and wherein said minor reflector comprises a metallic electrically conductive coating;

an electrochromic medium disposed between said front and rear substrates, wherein transmission of visible light through said reflective element is adjustable via electrically powering said transparent electrically conductive coating and said metallic electrically conductive coating;

a heater pad disposed at said fourth surface of said rear substrate, said heater pad having a heating element established thereat, said heating element generating heat when electrically powered;

wherein said heater pad comprises a flexible polymeric pad;

said heater pad including a first electrically conductive connector;

said first electrically conductive connector providing, at least in part, electrical conductive connection with said transparent electrically conductive coating disposed at said second surface of said front substrate;

said heater pad including a second electrically conductive connector;

said second electrically conductive connector providing, at least in part, electrical conductive connection with said metallic electrically conductive coating disposed at said third surface of said rear substrate;

wherein said heater pad comprises a third electrically conductive connector and a fourth electrically conductive connector;

said third and fourth electrically conductive connectors providing, at least in part, electrical conductive connection with said heating element; and

wherein said first, second, third and fourth electrically conductive connectors are part of a unitary multi-pin connector that is configured to connect with a corresponding connector of a wire harness of a vehicle equipped with said exterior mirror assembly to provide electrical power to said heating element and to said transparent electrically conductive coating and said metallic electrically conductive coating of said reflective element when said exterior minor assembly is mounted at a side of the equipped vehicle.

19. The minor reflective element assembly of claim 18, wherein said unitary multi-pin connector comprises one of a plug connector and a socket connector and wherein said corresponding connector of said wire harness comprises another of a plug connector and a socket connector.

20. The mirror reflective element assembly of claim 18, wherein said heater pad comprises a first electrical trace that, at least in part, provides electrical conductive connection between said first electrically conductive connector and said transparent electrically conductive coating, and wherein said heater pad comprises a second electrical trace that, at least in part, provides electrical conductive connection between said second electrically conductive connector and said metallic electrically conductive coating, and wherein said first electrical trace is electrically isolated from said second electrical trace, and wherein said heating element is electrically isolated from said first and second electrical traces.

21. The minor reflective element assembly of claim 18, wherein said heater pad has a frontmost surface and a rearmost surface, and wherein said frontmost surface of said heater pad attaches at said fourth surface of said rear substrate and wherein said unitary multi-pin connector is accessible at said rearmost surface of said heater pad, and wherein said frontmost surface of said heater pad is adhesively attached at said fourth surface of said rear substrate.

22. The minor reflective element assembly of claim 18, wherein said flexible polymeric pad comprises polyester.

23. The minor reflective element assembly of claim 18, wherein a first electrically conductive element is established at said fourth surface of said rear substrate and is in electrically conductive continuity with said transparent electrically conductive coating, and wherein a second electrically conductive element is established at said fourth surface of said rear substrate and is in electrically conductive continuity with said metallic electrically conductive coating, wherein said first electrically conductive connector is electrically conductive connected with said first electrically conductive element and said second electrically conductive connector is electrically conductive connected with said second electrically conductive element when said heater pad is disposed at said fourth surface of said rear substrate.

24. The minor reflective element assembly of claim 18, comprising a back plate attached to at least a portion of said heater pad, and wherein said back plate includes an aperture therethrough, and wherein said unitary multi-pin connector is disposed at said aperture when said back plate is attached to said at least a portion of said heater pad.

25. A variable reflectance mirror reflective element assembly for an exterior mirror assembly suitable for mounting at a side of a vehicle, said mirror reflective element assembly comprising:

a front substrate having a first surface and a second surface, said second surface having a transparent electrically conductive coating disposed thereat;

a rear substrate having a third surface and a fourth surface, said third surface having a mirror reflector disposed thereat and wherein said minor reflector comprises a metallic electrically conductive coating;

an electro-optic medium disposed between said front and rear substrates, wherein transmission of visible light through said reflective element is adjustable via electrically powering said transparent electrically conductive coating and said metallic electrically conductive coating;

a heater pad disposed at said fourth surface of said rear substrate, said heater pad having a heating element established thereat, said heating element generating heat when electrically powered;

wherein said heater pad comprises a flexible polymeric pad;

said heater pad including a first electrically conductive connector;

said first electrically conductive connector providing, at least in part, electrical conductive connection with said transparent electrically conductive coating disposed at said second surface of said front substrate;

said heater pad including a second electrically conductive connector;

said second electrically conductive connector providing, at least in part, electrical conductive connection with said metallic electrically conductive coating disposed at said third surface of said rear substrate;

wherein said heater pad comprises a third electrically conductive connector and a fourth electrically conductive connector;

said third and fourth electrically conductive connectors providing, at least in part, electrical conductive connection with said heating element;

wherein said first, second, third and fourth electrically conductive connectors are part of a unitary multi-pin connector that is configured to connect with a corresponding connector of a wire harness of a vehicle equipped with said exterior mirror assembly to provide electrical power to said heating element and to said transparent electrically conductive coating and said metallic electrically conductive coating of said reflective element when said exterior minor assembly is mounted at a side of the equipped vehicle; and

a back plate attached to at least a portion of said heater pad.

26. The minor reflective element assembly of claim 25, wherein said back plate includes an aperture therethrough, and wherein said unitary multi-pin connector is disposed at said aperture when said back plate is attached to said at least a portion of said heater pad.

27. The minor reflective element assembly of claim 25, wherein said unitary multi-pin connector comprises one of a plug connector and a socket connector and wherein said corresponding connector of said wire harness comprises another of a plug connector and a socket connector.

28. The mirror reflective element assembly of claim 25, wherein said heater pad comprises a first electrical trace that, at least in part, provides electrical conductive connection between said first electrically conductive connector and said transparent electrically conductive coating, and wherein said heater pad comprises a second electrical trace that, at least in part, provides electrical conductive connection between said second electrically conductive connector and said metallic electrically conductive coating, and wherein said first electrical trace is electrically isolated from said second electrical trace, and wherein said heating element is electrically isolated from said first and second electrical traces.

29. The minor reflective element assembly of claim 25, wherein said heater pad has a frontmost surface and a rearmost surface, and wherein said frontmost surface of said heater pad attaches at said fourth surface of said rear substrate and wherein said unitary multi-pin connector is accessible at said rearmost surface of said heater pad.

30. The minor reflective element assembly of claim 25, wherein a first electrically conductive element is established at said fourth surface of said rear substrate and is in electrically conductive continuity with said transparent electrically conductive coating, and wherein a second electrically conductive element is established at said fourth surface of said rear substrate and is in electrically conductive continuity with said metallic electrically conductive coating, wherein said first electrically conductive connector is electrically conductive connected with said first electrically conductive element and said second electrically conductive connector is electrically conductive connected with said second electrically conductive element when said heater pad is disposed at said fourth surface of said rear substrate.

31. A variable reflectance mirror reflective element assembly for an exterior mirror assembly suitable for mounting at a side of a vehicle, said mirror reflective element assembly comprising:

a front substrate having a first surface and a second surface, said second surface having a transparent electrically conductive coating disposed thereat;

a rear substrate having a third surface and a fourth surface, said third surface having a mirror reflector disposed thereat and wherein said minor reflector comprises a metallic electrically conductive coating;

an electrochromic medium disposed between said front and rear substrates, wherein transmission of visible light through said reflective element is adjustable via electrically powering said transparent electrically conductive coating and said metallic electrically conductive coating;

a heater pad disposed at said fourth surface of said rear substrate, said heater pad having a heating element established thereat, said heating element generating heat when electrically powered;

wherein said heater pad comprises a flexible polymeric pad;

wherein said heater pad has a frontmost surface and a rearmost surface, and wherein said frontmost surface of said heater pad is adhesively attached at said fourth surface of said rear substrate;

said heater pad including a first electrically conductive connector;

said first electrically conductive connector providing, at least in part, electrical conductive connection with said transparent electrically conductive coating disposed at said second surface of said front substrate;

said heater pad including a second electrically conductive connector;

said second electrically conductive connector providing, at least in part, electrical conductive connection with said metallic electrically conductive coating disposed at said third surface of said rear substrate;

wherein said heater pad comprises a third electrically conductive connector and a fourth electrically conductive connector;

said third and fourth electrically conductive connectors providing, at least in part, electrical conductive connection with said heating element;

wherein said first, second, third and fourth electrically conductive connectors are part of a unitary multi-pin connector that is configured to connect with a corresponding connector of a wire harness of a vehicle equipped with said exterior mirror assembly to provide electrical power to said heating element and to said transparent electrically conductive coating and said metallic electrically conductive coating of said reflective element when said exterior minor assembly is mounted at a side of the equipped vehicle;

wherein said unitary multi-pin connector is accessible at said rearmost surface of said heater pad;

a back plate adhesively attached at said rearmost surface of said heater pad; and

wherein said back plate includes an aperture therethrough, and wherein said unitary multi-pin connector is disposed at said aperture when said back plate is adhesively attached at said rearmost surface of said heater pad.

32. The minor reflective element assembly of claim 31, wherein said unitary multi-pin connector comprises one of a plug connector and a socket connector and wherein said corresponding connector of said wire harness comprises another of a plug connector and a socket connector.

33. The mirror reflective element assembly of claim 31, wherein said heater pad comprises a first electrical trace that, at least in part, provides electrical conductive connection between said first electrically conductive connector and said transparent electrically conductive coating, and wherein said heater pad comprises a second electrical trace that, at least in part, provides electrical conductive connection between said second electrically conductive connector and said metallic electrically conductive coating, and wherein said first electrical trace is electrically isolated from said second electrical trace.

34. The mirror reflective element assembly of claim 33, wherein said heating element is electrically isolated from said first and second electrical traces.