Shielding device for vehicular electronic components

• US 20070182649A1
• Filed: 02/05/2007
• Published: 08/09/2007
• Est. Priority Date: 02/06/2006
• Status: Active Grant

• Current Assignee: Nissan Motor Co., Ltd.
• Original Assignee: Nissan Motor Co., Ltd.
• Inventors: Kondou, Shunji
• Granted Patent: US 8,026,861 B2
• Time in Patent Office: Days
• US Class Current: 343/713
• CPC Class Codes: H01Q 1/325 characterised by the location of the antenna on the vehicle
• CPC Class Codes: H01Q 1/42 Housings not intimately mechanically associated with radiating elements, e.g. radome
• CPC Class Codes: H01Q 1/52 Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure absorbing means H01Q17/00

Abstract

A shielding device for an electronic component for use in a vehicle. The electronic component is positioned on the vehicle and generates an electromagnetic wave. A conductive panel is positioned between the electronic component and an antenna and substantially covers the electronic component. A ground wire is connected to the conductive panel and the vehicle so as to establish a ground connection for the electromagnetic wave.

Claims

1. A shielding device for use in a vehicle having an antenna and an electronic component generating an electromagnetic wave, the electronic component mounted at least in part exterior to the vehicle, the shielding device comprising:

an exterior panel positioned between the electronic component and the antenna and having a property suitable for shielding the antenna from the electromagnetic wave.

2. The shielding device according to claim 1 wherein the exterior panel is an electrically conductive exterior panel at least partially enclosing the electronic component.

3. The shielding device according to claim 2, further comprising:

a ground wire connected to the conductive panel and the vehicle and establishing a ground connection for the electromagnetic wave.

4. The shielding device according to claim 3 wherein the conductive panel is attached to the vehicle by a fastener and the ground wire attached to the conductive panel by the fastener.

5. The shielding device according to claim 1 wherein the exterior panel comprises a resinous finisher having a metal plating layer coating an outer surface of the resinous finisher.

6. The shielding device according to claim 5 wherein the metal plating layer comprises a multi-layer structure having a chromium plating outer layer and at least one of a nickel plating layer and a copper plating layer positioned between the chromium layer and the resinous finisher.

7. The shielding device according to claim 2 wherein the conductive panel comprises a trunk compartment lid.

8. The shielding device according to claim 2 wherein the conductive panel comprises a rear spoiler.

9. An apparatus for use in a vehicle including an antenna, comprising:

means for generating an electromagnetic wave, the generating means mounted at least in part exterior to the vehicle; and

means for shielding the antenna from the electromagnetic wave, the shielding means positioned between the generating means and the antenna.

10. An electrically conductive panel for shielding electromagnetic waves generated by an electronic component attached to an exterior of a vehicle, the conductive panel comprising:

a resinous finisher; and

a metal plating layer formed on a surface of the resinous finisher.

11. The conductive panel according to claim 10 wherein the metal plating layer comprises multi-layer plating having a chromium plating layer and at least one of a nickel plating layer positioned between the chromium layer and the resinous finisher.

12. The conductive panel according to claim 10 wherein the resinous finisher is at least a portion of a vehicle exterior trunk compartment lid.

13. The conductive panel according to claim 10 wherein the resinous finisher is at least a portion of a vehicular rear spoiler.

14. A vehicle, comprising:

an electronic component mounted exterior to a trunk compartment;

an antenna for receiving signals from outside of the vehicle and mounted higher than the electronic component in a vertical direction relative to the vehicle; and

a shielding device for shielding electromagnetic waves generated by the electronic component from the antenna, the shielding device including an electrically conductive panel attached to the, vehicle distant from the antenna and having an interior cavity housing the electronic component.

15. The vehicle according to claim 14 wherein the electrically conductive panel comprises an interior component and metal plating substantially covering an outer surface of the interior component.

16. The vehicle according to claim 14 wherein the metal plating further comprises a first layer of at least one of a layer of nickel and a layer of copper positioned over the outer surface of the interior component and a layer of chromium positioned over the first layer.

17. The vehicle according to claim 15 further comprising:

a grounding member attached to the metal plating and to an inner conductive panel of the vehicle.

18. The vehicle according to claim 14 wherein the electrically conductive panel includes a first end attached to a lid of the trunk compartment and a second end opposite the first end adjacent to the rear of the vehicle, the second end defining an opening for protrusion of a selective portion of the electronic component to pass through the outer surface of the electrically conductive panel.

19. The vehicle according to claim 14 wherein the electronic component is a CCD camera including a lens, and wherein the electrically conductive panel substantially encloses the CCD camera and the lens is positioned with respect to the electrically conductive panel such that the lens is directed away from the rear of the vehicle to capture images of the environment behind the vehicle.

20. The vehicle according to claim 14 wherein the electrically conductive panel includes a lid of the trunk compartment.