ELECTRICAL CONNECTOR WITH EMI SHIELD

• US 20090004917A1
• Filed: 06/27/2008
• Published: 01/01/2009
• Est. Priority Date: 06/28/2007
• Status: Active Grant

• Current Assignee: II-VI Delaware, Inc. (Coherent Corp.)
• Original Assignee: Finisar Corporation (II-VI Incorporated)
• Inventors: Ice, Donald A.
• Granted Patent: US 7,762,844 B2
• Time in Patent Office: Days
• US Class Current: 439/607.410
• CPC Class Codes: H01R 13/648 Protective earth or shield arrangements on coupling devices , e.g. anti-static shielding coaxially arranged shields H01R24/38

Abstract

An electrical connector having an electrical interface assembly electrical processing circuitry, and an EMI barrier. The electrical interface assembly has a plurality of electrical contacts for interfacing with a receptacle when the electrical connector is connected to a corresponding receptacle. The electrical processing circuitry is for processing electrical signals received from at least some of the plurality of electrical contacts and/or to be sent to the plurality of electrical contacts. The EMI barrier substantially contains the electrical processing circuitry except at a number of EMI barrier openings. The largest of these EMI barrier openings is where the electrical contacts pass through the connector.

Claims

1. An electrical connector comprising:

an electrical interface assembly having a plurality of electrical contacts for interfacing with a receptacle when the electrical connector is connected to a corresponding receptacle;

electrical processing circuitry for processing electrical signals received from at least some of the plurality of electrical contacts and/or to be sent to the plurality of electrical contacts; and

an EMI barrier that substantially contains the electrical processing circuitry except at a plurality of EMI barrier openings, wherein a first and largest of the EMI barrier opening passes therethrough at least some of the plurality of electrical contacts therethrough.

2. The electrical connector of claim 1, wherein the largest EMI barrier opening passes therethrough all of the plurality of electrical contacts.

3. The electrical connector of claim 1, further comprising:

a Transmit Optical Sub Assembly (TOSA), wherein a second EMI barrier opening is for transmitting optical transmit signals therethrough.

4. The electrical connector of claim 1, further comprising:

a transmit optical fiber, wherein the transmit optical fiber passes through the second EMI barrier opening.

5. The electrical connector of claim 4, further comprising:

a Receive Optical Sub Assembly (ROSA), wherein a third EMI barrier opening is for receiving optical signals therethrough.

6. The electrical connector of claim 5, further comprising:

a receive optical fiber, wherein the receive optical fiber passes through the third EMI barrier opening.

7. The electrical connector of claim 3, further comprising:

an optical light guide, wherein a third EMI barrier opening is for passing the optical light guide therethrough.

8. The electrical connector of claim 1, further comprising:

an optical light guide, wherein a second EMI barrier opening is for passing the optical light guide therethrough, wherein the optical light guide is optically coupled to the electrical processing circuitry so as to optical provide status information.

9. The electrical connector of claim 1, wherein the EMI barrier is structured such that when the electrical connector is plugged into a receptacle, a receptacle shield covers at least a portion of the largest EMI barrier opening such that the largest EMI barrier opening is reduced in size albeit still being the largest opening of the plurality of EMI barrier openings of the electrical connector.

10. The electrical connector of claim 1, further comprising:

a latch mechanism residing wholly outside of the EMI barrier.

11. The electrical connector of claim 1, further comprising:

a contact support mechanism comprised of an insulating material and placed at the largest EMI barrier opening to thereby provide mechanism support for the plurality of electrical contacts.

12. The electrical connector of claim 1, wherein the EMI barrier covers the electrical processing circuitry such that none of the electrical processing circuitry is external to the EMI barrier.

13. The electrical connector of claim 1, wherein the EMI barrier is composed of a single piece of conductive material.

14. The electrical connector of claim 1, wherein the EMI barrier does not contain any other opening except for the largest EMI barrier opening for passing therethrough the plurality of electrical contacts, and one or more EMI barrier openings for passing optical signals.

15. An electrical connector comprising:

electrical processing circuitry;

a plurality of electrical contacts for electrically interfacing with the electrical processing circuitry;

an electro-optical transducer configured to convert electrical signals received from the electrical processing circuitry into optical signals; and

an integrated EMI barrier piece into which the electrical processing circuitry is situated, wherein the integrated EMI barrier piece includes a first EMI barrier opening through which the plurality of electrical contacts may pass, and a second EMI barrier opening through which the optical signals generated by the electro-optical transducer may pass, wherein the first EMI barrier opening is the largest of all EMI barrier openings in the integrated EMI barrier piece.

16. The electrical connector of claim 15, further comprising:

an opto-electrical transducer configured to convert received optical signals into electrical signals for the electrical processing circuitry, wherein the integrated EMI barrier piece further includes a third EMI barrier opening through which the received optical signals are received.

17. The electrical connector of claim 16, further comprising:

an optical light guide configured to receive optical status information from the electrical processing circuitry and communicate that optical status information to external to the electrical connector, wherein the integrated EMI barrier piece further includes a fourth EMI barrier opening through which the optical light guide passes.

18. An electrical connector comprising:

an electrical interface at the front end of the connector;

an optical cable extending from the rear end of the connector; and

an EMI barrier material extending over the length of the connector, the EMI barrier material having an opening through which the electrical interface may pass at the front end of the connector, and one or more openings at the rear end of the connector through which one or more optical fibers of the optical cable may pass.

19. The electrical connector of claim 18, further comprising:

an insulating mechanical support positioned at the front end of the connector and that provides mechanism support for the electrical interface.

20. The electrical connector of claim 18, further comprising:

a connector latch positioned external to the EMI barrier material; and

a latch securing mechanism configured to secure the connector latch to the EMI barrier material.