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

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.