Round plug connector for screened electric cables

• US 20030194890A1
• Filed: 04/10/2003
• Published: 10/16/2003
• Est. Priority Date: 04/13/2002
• Status: Active Grant

• Current Assignee: Harting Electric Gmbh & Co. Kg (Harting KGaA)
• Original Assignee: Harting Electric Gmbh & Co. Kg (Harting KGaA)
• Inventors: Ferderer, Albert, Schwettmann, Hartmut
• Granted Patent: US 6,716,041 B2
• Time in Patent Office: Days
• US Class Current: 439/98
• 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 13/6597 the conductive member being a contact of the connector

Abstract

For connecting the cable shielding in screened electric cables in the case of a round plug connection, it is proposed that, for the purpose of making contact with the cable shield, a contact element is provided which is disposed between an insulating pressing/clamping part and an insulating body, an aperture through which the cable shield can be introduced being provided in the said contact element. Under these circumstances, the contact element is shaped in such a way that connection of the cable shield to a counterplug can take place by means of a contact part which is to be provided inside the plug connector housing, or by means of the electrically conductive outer cover of the plug connector, or via both methods.

Claims

1. Round plug connector for screened electric cables (50), the said connector having an insulating body (20) disposed in a carrier body (3) and a cable screw fitting consisting of a pressing/clamping part (30) and a metal screw bush (40), wherein the pressing/clamping part presses against the insulating body when the screw bush is screwed onto the carrier body, characterised in that

a contact element (25) is provided for making contact with cable shielding (54) on the electrical conductor (50), the said contact element being disposed on that side of the insulating body (20) which points towards the cable connection;

that the contact element (25) in the form of a flat, bending part is provided with a bent-over, resilient end (28) which engages over a projection (23′

) which is provided in a recess (23) disposed axially in the outer wall of the insulating body;

that the contact element (25) is provided with an aperture (29) into which the cable shielding (52) is introduced, the said cable shielding being received in the recess (23) and clamped fast with the bent-over, resilient end (28); and

that the contact element (25) with the bent-over, resilient end (28) is disposed in such a way that, when the screw bush (40) is screwed on, the bending edge (28′

) of the resilient end presses against the inner wall (42) of the said screw bush.

2. Plug connector according to claim 1, characterised in that

the contact element (25) has, opposite the resilient end (28), an angled portion (26) which penetrates into a slit (21) in the insulating body (20).

3. Plug connector according to claim 1 or 2, characterised in that

an insulation-piercing terminal (19), which makes contact with the angled portion (26) of the contact element (25), is disposed in the slit (21).

4. Plug connector according to any one of the preceding claims, characterised in that

polarising means (24, 34) which interact with one another are provided on the insulating body (20) and the pressing/clamping part (30).

5. Plug connector according to any one of the preceding claims, characterised in that

the insulating body (20) is provided as a conductor-guiding part for electrical conductors (54) with which contact is made by insulation-piercing terminals (19) in suitably shaped conductor-guiding ducts (22).