STRAIN RELIEF FOR SHIELDED-CABLE PLUG CONNECTOR

Abstract

The invention relates to an assembly comprising a plug connector and a cable (1) which is connected thereto and which has an inner conductor (2), a shielding (3), an insulation (4) between the inner conductor (2) and the shielding (3), and a jacket (5) pot which surrounds the aforementioned components, wherein a sleeve is added between the insulation (4) and the shielding (3) at a free IT end section of the cable (1), and a tubular component surrounds the shielding (3) and the sleeve.

Claims

1. An assembly comprising: a connector and a cable connected thereto and having an inner conductor, a tubular shield, insulation between the inner conductor and the inner shield, a jacket surrounding the inner conductor, shield, and insulation, an annularly continuous inner support sleeve between the insulation and the shield at a free end portion of the cable, and a tubular outer sleeve surrounding the shield an end section of the jacket, and the inner sleeve.

2. The assembly according to claim 1, wherein the outer sleeve is a crimp sleeve that is crimped onto the jacket and the shield with the inner sleeve

3. The assembly according to claim 1, wherein the outer sleeve has a radially inwardly projecting ridge that fits between axially confronting end faces of the jacket and the inner support sleeve and extends around the shield as far as the insulation.

4. The assembly according to claim 1, wherein between end faces of the jacket and the inner support sleeve there is a free space through which the shield passes frustoconically.

5. The assembly according to claim 3, wherein the shield passes up over an outer free end of the inner support sleeve.

6. The assembly according to the preceding claims, claim 1, wherein the inner support sleeve is crimped on the insulation.

7. The assembly according to claim 1, wherein an inner diameter of the section of the jacket in which the outer sleeve is seated and an outer diameter of the shield on the support sleeve are the same.

8. The assembly according to claim 1, wherein the inner support sleeve and the outer sleeve are electrically conductive and are connectable to an electrically conductive housing of a male or female plug connector.

9. The assembly according to claim 1, wherein the cable is a coaxial cable or a twisted pair cable.

Description

[0027] FIG. 1 shows two cables whose ends are designed according to the invention;

[0028] FIG. 2 shows a section through the end of a cable with a connector according to the invention;

[0029] FIG. 3 shows a plug connector with attached cable and a mating plug connector; and

[0030] FIG. 4 illustrates an assembly according to the prior art.

[0031] Referring to FIGS. 1 to 3, reference 1 designates a cable that in this embodiment is a coaxial cable and has an inner conductor 2, a shield 3, insulation 4 between the inner conductor and the shield 3 and a jacket 5 that surrounds these parts. Shortly before the end of the insulation 4, an inner support sleeve 6 is fitted on the latter and is designed in the form of a collar without a slot. The support sleeve 6 is installed between the insulation 4 and the spread shield 3. The end of the jacket 5 at the support sleeve 6 is cut back and carries an outer sleeve 7 that surrounds the extended shield 3 and the support sleeve 6. For this purpose, in order to increase strength, the outer sleeve 7 is a collar and is crimped around the end of the jacket 5 and the shield 3 together with the support sleeve 6. The support sleeve 6 can also be a crimp sleeve and can be fixed on the insulation 4. The outer sleeve 7 can be electrically conductive and is electrically connected to a housing 8 (in particular when the housing 8 consists of an electrically conductive material) and mechanically (irrespective of whether the housing 8 consists of an electrically conductive material or of an electrically non-conductive material) comes into operative connection with a housing of a mating plug connector. It is particularly advantageous if the housing 8 and also the outer sleeve 7 of the mating plug connector consist of an electrically conductive material, since it can thus be ensured that shielding is ensured via the plug connection that is formed by the plug connector and a mating plug connector.

[0032] As can be seen from FIG. 3, a free space 9 is provided into which the shield 3 extends between the end faces of the jacket 5 and the support sleeve 6. Alternatively, the outer sleeve 7 can also have a radially inwardly projecting ridge, onto which the shield 3 is placed, inserted, crimped or the like between the end faces of the jacket 5 and the support sleeve 6.

[0033] Reference 10 indicates a locking element that is actuated after the plug-in connector and a mating plug-in connector have been plugged together in order to prevent unintentional disassembly of the plug-in connection. Such a locking element 10, also referred to as a CPA, is basically known. This element 10 can consist of plastic or metallic material and generally has only a mechanical, but no electrical function.

[0034] As can also be seen from FIG. 3, the outer sleeve 7 has, at its lower end (when viewed in FIG. 3), a reinforcement region 11 that extends inward and/or outward over the cylindrical length of the outer sleeve 7 (both inward and outward in FIG. 3). Instead of such a reinforcement region 11, a straight cylindrical part, a widening, for example a frustoconical or trumpet-shaped widening or the like, is also possible. The electrical connection thereof, optionally also a mechanical connection in the sense of a guide aid, to a corresponding electrically conductive region of the mating plug connector takes place with this end region of the outer sleeve 7 in order to ensure the shielding along the plug-in connection.

[0035] Finally, FIG. 4 shows an assembly according to the prior art.

LIST OF REFERENCES

[0036] 1 Cable [0037] 2 Inner conductor [0038] 3 Shield [0039] 4 Insulation [0040] 5 Jacket [0041] 6 Inner support sleeve [0042] 7 Outer sleeve [0043] 8 Housing [0044] 9 Free space (alternatively inner collar) [0045] 10 Locking element [0046] 11 Reinforcement