Electrical contact device, electrical connecting unit and method for assembling an electrical cable

Patent metadata

Field	Value
Publication number	US-10707597-B2
Application number	US-201816139135-A
Country	US
Kind code	B2
Filing date	Sep 24, 2018
Priority date	Sep 22, 2017
Publication date	Jul 7, 2020
Grant date	Jul 7, 2020

Abstract

An electrical contact device for a twin-axial electrical cable has a crimping section. In a crimped state on the twin-axial electrical cable, the crimping section is closed and has an oval cross-sectional shape in at least a portion of the crimping section.

First claim

What is claimed is:

1. An electrical contact device for a twin-axial electrical cable, comprising:
a crimping section that, in a crimped state on the twin-axial electrical cable, is closed and has an oval cross-sectional shape in at least a portion of the crimping section, an entirety of a longitudinal extension of the crimping section is disposed along the twin-axial electrical cable.

2. The electrical contact device of claim 1 , wherein, in the crimped state and in a radial plane of the crimping section, a diameter of the crimping section in a circumferential direction of the crimping section continuously varies along the crimping section.

3. The electrical contact device of claim 1 , wherein
a plurality of circumferential edge sections of the crimping section are formed in a substantially complementary or substantially form-fitting manner relative to one another;
the crimping section is formed by a single curved wall;
a pair of crimp flanks of the crimping section are formed substantially closed; and/or
in the crimped state, a crimp slit is formed in a substantially light-tight manner between the crimp flanks along an axial direction of the contact device.

4. The electrical contact device of claim 1 , wherein the contact device is a ferrule substantially constituted as a single crimping section.

5. The electrical contact device of claim 4 , wherein
the crimping section, in the crimped state, is closed and has the oval cross-sectional shape in all portions of the crimping section;
a longitudinal extension of the ferrule is disposed along an axial direction of the twin-axial electrical cable;
the ferrule has a constant inner diameter in the crimped state in an axial plane; and/or
the ferrule is formed as a single crimp flank.

6. The electrical contact device of claim 1 , wherein the contact device is a shield contact sleeve having an insulating crimping section, an outer conductor crimping section, and/or a shield contact section.

7. The electrical contact device of claim 6 , wherein
in the crimped state, the insulating crimping section and/or the outer conductor crimping section installed on the twin-axial electrical cable are closed and have the oval cross-sectional shape in all portions of the crimping sections;
the outer conductor crimping section has the oval cross-sectional shape in all portions of the outer conductor crimping section;
a crimp slit of the shield contact sleeve extends through the outer conductor crimping section; and/or
in an open state, the insulating crimping section is formed as a single gaping insulating crimping section and/or the outer conductor crimping section is formed as a single gaping outer conductor crimping section.

8. An electrical connecting unit for a twin-axial electrical cable, comprising:
an electrical contact device having a crimping section that, in a crimped state on the twin-axial electrical cable, is closed and has an oval cross-sectional shape in at least a portion of the crimping section, the electrical contact device is a ferrule and a shield contact sleeve disposed over the ferrule.

9. The electrical connecting unit of claim 8 , wherein, in a crimped state:
a crimp slit of the ferrule and a crimp slit of the shield contact sleeve are offset from one another in a circumferential direction of the connecting unit; and/or
the crimp slit of the ferrule and the crimp slit of the shield contact sleeve are arranged substantially without overlap in a radial direction of the connecting unit.

10. An electrical connector for a twin-axial electrical cable, comprising:
a connector housing; and
an electrical contact device having a crimping section that, in a crimped state on the twin-axial electrical cable, is closed and has an oval cross-sectional shape in at least a portion of the crimping section, the electrical contact device includes a ferrule and a shield contact sleeve disposed over the ferrule.

11. A method for assembling a twin-axial electrical cable, comprising:
crimping an open crimping section of an electrical contact device into a closed crimping section onto the twin-axial electrical cable, the closed crimping section having an oval cross-sectional shape at least in a portion of the crimping section, the electrical contact device includes a ferrule and a shield contact sleeve crimped over the ferrule.

12. The method of claim 11 , wherein the ferrule has the oval cross-sectional shape and is crimped on an electrical outer conductor of the twin-axial electrical cable.

13. The method of claim 12 , further comprising, after fixing the ferrule, fixing a terminal on an electrical inner conductor of the twin-axial electrical cable.

14. The method of claim 13 , further comprising, after fixing the terminal, fixing the shield contact sleeve on the twin-axial electrical cable, an insulating crimping section of the shield contact sleeve having the oval cross-sectional shape in all portions of the insulating crimping section and/or an outer conductor crimping section of the shield contact sleeve having the oval cross-sectional shape in all portions of the outer conductor crimping section.

15. The method of claim 14 , wherein, in a crimped state, a crimp slit of the ferrule and a crimp slit of the outer conductor crimping section are offset from one another in a circumferential direction of the connecting unit.

16. An assembled twin-axial electrical cable, comprising:
a twin-axial electrical cable; and
an electrical connecting unit at least partially joined to the twin-axial electrical cable, the electrical connecting unit including a ferrule with an oval cross-sectional shape fixedly connected to an electrical outer conductor of the twin-axial electrical cable and a shield contact sleeve disposed over the ferrule and having a crimping section with an oval cross-sectional shape fixedly connected to the twin-axial electrical cable.

Assignees

• Te Connectivity Germany Gmbh

Inventors

• Bergner Bert
• Mandel Christian
• Bluemmel Uwe
• Kumar Rajesh

Classifications

• H01R4/20

  using a crimping sleeve {(H01R4/01 takes precedence)} · CPC title

• H01R43/04

  for forming connections by deformation, e.g. crimping tool · CPC title

• H01R4/183 Primary

  for cylindrical elongated bodies, e.g. cables having circular cross-section (H01R4/01 takes precedence) · CPC title

• H01R4/18 Primary

  by crimping {(H01R4/01, H01R4/2495 take precedence; for coaxial cables H01R9/0518)} · CPC title

• H01B7/40

  with arrangements for facilitating mounting or securing · CPC title