Method and device for establishing a shield connection of a shielded cable

Patent metadata

Field	Value
Publication number	US-11167371-B2
Application number	US-201816762765-A
Country	US
Kind code	B2
Filing date	Aug 15, 2018
Priority date	Nov 13, 2017
Publication date	Nov 9, 2021
Grant date	Nov 9, 2021

Abstract

Method for forming a shield connection of a shielded cable with the steps of pushing a sleeve onto a shield of a cable, inserting the cable with the sleeve into a magnetic pulse welding coil, and energizing the magnetic pulse welding coil with a current pulse in such a way that the sleeve is joined to the shield with a material bond.

First claim

What is claimed is:

1. Method for establishing a shield connection of a shielded cable comprising:
pushing a sleeve onto a shield of a cable;
inserting the cable with the sleeve into a magnetic pulse welding coil; and
energizing the magnetic pulse welding coil with a current pulse in such a way that the inner wall of the sleeve is joined with the shield with a material bond.

2. Method of claim 1 , wherein an outer insulation of the cable is removed in one area and the sleeve is pushed onto the one area.

3. Method of claim 1 , wherein the pulse has a duration of less than one second.

4. Method of claim 1 , wherein the pulse has a current of at least 100 kA.

5. Method of claim 1 , wherein the magnetic pulse welding coil is a toroidal coil and the cable with the sleeve is inserted into the magnetic pulse welding coil concentrically with the coil axis of the toroidal coil.

6. Method of claim 1 , wherein the sleeve is cold-formed by the pulse.

7. Method of claim 1 , wherein an outer insulation of the cable is removed at one end of the cable.

8. A cable comprising:
an inner conductor;
an inner insulation surrounding the inner conductor;
a shield surrounding the inner insulation;
an outer insulation surrounding the shield;
a sleeve surrounding the shield pushed onto an area freed from the outer insulation, an inner wall of the sleeve being adjacent the shield wherein the shield is welded as a material bond to the inner wall of the sleeve using magnetic pulse welding.

9. The cable of claim 8 , wherein the sleeve and the shield are made of the same metal, in particular from aluminium or alloys thereof or from copper or alloys thereof.

10. The cable of claim 8 , wherein at least the inner conductor has a round or a rectangular cross-section.

11. The cable of claim 8 , wherein the shield is formed from a metal braid and/or a metal foil.

12. The cable of claim 8 , wherein the sleeve has an opening cross-section and an outer cross-section, wherein the opening cross-section is different from the outer cross-section.

Assignees

• Auto Kabel Man Gmbh

Inventors

• Scharkowski Oliver

Classifications

• B23K2101/38

  Conductors · CPC title

• B23K20/06 Primary

  by means of high energy impulses, e.g. magnetic energy · CPC title

• H01R9/0512

  Connections to an additional grounding conductor · CPC title

• H01R4/023

  between cables or wires and terminals · CPC title

• B23K2101/32

  Wires · CPC title