Shielded, molded electrical connector

• US 5,906,513 A
• Filed: 08/25/1997
• Issued: 05/25/1999
• Est. Priority Date: 03/20/1997
• Status: Expired due to Term

• Current Assignee: Woodhead Industries Incorporated (KOCH Industries Incorporated)
• Original Assignee: Woodhead Industries Incorporated (KOCH Industries Incorporated)
• Inventors: Borucki, Irena, Peterson, Bruce A.
• Primary Examiner(s): Nguyen, Khiem
• Application Number:
  US08/917,264
• Time in Patent Office: 638 Days
• Field of Search: 439/88, 439/89, 439/98, 439/99, 439/320, 439/607, 439/610, 439/931
• US Class Current: 439/607.58
• CPC Class Codes: H01R 13/65912 for shielded multiconductor cable coaxial cables with one conductor surrounded by shield H01R9/05; flat shielded cables H01R12/594
• CPC Class Codes: H01R 13/6593 the shield being composed of different pieces
• CPC Class Codes: H01R 43/24 Assembling by moulding on contact members

Abstract

A shielded, molded electrical connector includes a conductive sleeve surrounding an insert body housing the connector elements. A metal coupling member is received on the sleeve and in electrical continuity with the sleeve. An outer sheath formed of moldable thermoplastic material with wire strands embedded throughout forms a conductive shield from the sleeve to a braided shield (in the case of a cord set) or to a conductive shield on an insert body housing complementary connector elements (in the case of a splitter).

Claims

1. In combination:

a shielded cord including a plurality of insulated wires, a braided shield and an outer insulating sheath covering said shied; and

a connector comprising;

an insert having a plurality of connector terminals, each connected to an associated wire of said shielded cord, said connector terminals secured in spaced relation in an insert body of insulating material;

a tubular metal sleeve surrounding said insert body and electrically isolated from said connector terminals, a proximal end of said sleeve contacting said braided shield to establish electrical continuity therewith;

a conductive coupling nut received on said sleeve and in electrical continuity therewith; and

an overmold material extending from said cord to said sleeve and encompassing an exterior portion of said outer sheath of said cord, a portion of said braided shield extending out of said sheath and said sleeve, said overmold material including a plurality of thin, conductive interconnected wire strands embedded therein and establishing electrical continuity between said braided shield and said sleeve.

2. The article of claim 1 wherein said coupling nut is received an said sleeve and includes an externally threaded portion thereof adapted to receive a corresponding female coupling nut on a mating connector.

3. The article of claim 1 wherein said sleeve comprises an elongated cylindrical metal member surrounding at least a portion of the wires of said cord and the connection of said wires to their associated connector terminals, said insert housing, and said connector terminals, and defining at the distal end thereof, adjacent said cord, a plurality of depending tabs, said tabs defining a cavity for receiving the proximal end of said braided shield and crimped against said braided shield for establishing electrical continuity with said braided shield.

4. The article of claim 3 wherein said sleeve includes a proximal end defining an outwardly extending circumferential flange and said connector is adapted to receive a mating connector, said circumferential flange acting to limit the axial movement of said coupling nut received on said sleeve and to establish electrical continuity with said coupling nut when a mating coupling nut is coupled thereto.

5. The article of claim 4 wherein said tabs on said sleeve are at least partially defined by a plurality of slots formed in the distal end of said sleeve adjacent said braided shield and extending parallel to the axis of said sleeve whereby said tabs may be defined inwardly against said braided shield thereby to establish electrical continuity therewith.

6. The article of claim 5 wherein said sleeve further includes a first circumferential groove on the exterior thereof at the base of said labs thereby to facilitate bending of said tabs and crimping said tabs against said braided shield.

7. The article of claim 6 further comprising a second circumferential groove or the exterior of said sleeve and spaced from said tabs to provide a recess for receiving said overmold material to secure said overmold material to said sleeve by having said overmold material fill the recess off sad second groove.

8. The article of claim 6 further comprising a layer of potting compound surrounding said wires adjacent the distal ends of said insert body, said layer of potting compound terminating in a transverse plane passing through said first circumferential groove to provide a backing medium for bending said tabs.

9. In an electrical device having a first connector and at least one complementary connector, each of said first and complementary connectors being multiple-pole electrical connectors adapted to mate with respective complementary electrical connectors;

and intermediate connecting means establishing permanent electrical connections between associated poles of said first and complementary connectors, the improvement wherein each of said first and complementary connectors comprises an insert housing;

a plurality of terminal elements embedded in said insert housing in spaced relation and electrically isolated from each other;

a tubular metal sleeve received on the exterior of said insert body and extending toward the distal end thereof;

a coupling nut received on said sleeve and having threads for mating with a complementary coupling nut;

an insulating premold material encompassing said intermediate connecting means; and

thermoplastic conductive overmold material engaging the sleeves of said first and complementary connectors and encompassing said premold material for establishing electrical continuity between said sleeves and providing an RFO shield for said first and complementary connectors and said intermediate connecting means, said overmold material including a plurality of discrete conductive elements embedded therein and establishing electrical continuity throughout the body of said overmold material.

10. The article of claim 9 wherein said discrete conductive elements comprise individual lengths of wire.