CONNECTOR ARRANGEMENT

Description

FIELD OF THE INVENTION

[0001] The present invention relates to a connector assembly comprising a cable and a connector. TECHNICAL BACKGROUND

[0002] To connect cables to connectors, it is common practice to crimp the cable and connector together in a connection area. The force with which the cable is crimped to the connector affects the mechanical holding force between the cable and the connector. The problem with this is that crimping is associated with deformation of the cable and the connector. This deformation has a detrimental effect on the electrical properties of a connector assembly.

[0003] This is a situation that needs to be improved.

[0004] EP 3 242 359 A1 shows a connector assembly with a connector and a cable connected to the connector, wherein the cable has an inner conductor and an outer conductor and the connector has an inner conductor and an outer conductor, wherein the connector assembly has a crimping area in which the cable is crimped with a crimp sleeve.

[0005] US 6 257 920 B1 shows a connector arrangement. SUMMARY OF THE INVENTION

[0006] Against this background, the present invention is based on the object of providing a connector assembly with an increased holding force between the cable and the connector and improved electrical properties of the connector assembly.

[0007] According to the invention, this object is achieved by a connector assembly having the features of patent claim 1. A nose has a relatively small diameter, which is a few millimeters and / or, depending on the cable diameter, less than one tenth of the cable diameter.

[0008] The idea underlying the present invention is to increase the holding force of a connector on a cable by providing a crimp sleeve that interacts more mechanically with the cable. This is achieved by a crimp sleeve with several inward-facing lugs. The lugs are rather small, allowing them to easily engage with an underlying cable section.

[0009] In this way, the force with which a crimp sleeve is pressed onto the cable can be reduced, since the holding force is already increased by the geometry of the crimp sleeve or the cable. This has a positive effect on the electrical properties of the connector assembly, since compression is generally detrimental to the electrical properties of a connector assembly.

[0010] According to the invention, the nose is formed on a front end of the crimp sleeve, wherein the crimp sleeve is crimped to the shielding braid and the shielding braid is formed within the crimp sleeve. Front end means that the nose rests on an edge of a front end of the crimp sleeve. This enables a more angular contour of the nose compared to a nose that does not rest on an edge. If an angular nose is formed in a central area of ​​a crimp sleeve, the crimp sleeve may tear. In contrast, a crimp sleeve can deform more flexibly in a region of a nose if the nose rests on an edge of the crimp sleeve. A crimp sleeve with a more angular contour can interact mechanically with a cable more effectively. This increases the holding force of the crimp sleeve on the cable.

[0011] According to the invention, the crimp sleeve has a plurality of protrusions formed on opposite ends of the crimp sleeve. This increases the holding force of a crimp sleeve on a cable by allowing multiple protrusions to mechanically interact with the cable. Depending on the number of protrusions provided, geometric deformation of the protrusions or deformation of the cable in the area affected by the protrusions can be minimized. This reduces electrical interference caused by cable deformation.

[0012] According to the invention, the nose rests against an outer conductor of the cable and engages the cable's braided shield. The interaction of the nose with an outer conductor of the cable is particularly advantageous. The interaction of a nose with a braided shield or outer conductor of the cable is particularly effective because a nose can hook or claw particularly well into the braid of an outer conductor.

[0013] According to the invention, the crimp sleeve has at least one recess. The recess forms a window in the crimp sleeve and allows for effective engagement of a cable component underneath.

[0014] According to the invention, a braided shield of the cable engages the recess. A braided shield deforms particularly advantageously during a crimping process by deforming into the recess.

[0015] Advantageous embodiments and further developments emerge from subclaim 2 and from the description with reference to the figures of the drawing. It is understood that the features mentioned above and those to be explained below can be used not only in the respective combinations specified, but also in other combinations or on their own, without departing from the scope of the present invention.

[0016] According to an advantageous embodiment of the invention, the crimp sleeve is crimped to an outer conductor crimp. This ensures a particularly effective crimp connection between a cable and a connector by means of a crimp sleeve.

[0017] The above embodiments and developments can be combined with one another as desired, where appropriate. Further possible embodiments, developments, and implementations of the invention also include combinations of features of the invention not explicitly mentioned above or described below with respect to the exemplary embodiments. In particular, those skilled in the art will also add individual aspects as improvements or additions to the respective basic form of the present invention. TABLE OF CONTENTS OF THE DRAWING

[0018] The present invention will be explained in more detail below with reference to the exemplary embodiments shown in the schematic figures of the drawing. In the drawings: Fig. 1 is a schematic perspective view of an embodiment of a cable according to the invention; Fig. 2 is a schematic perspective view of an embodiment of a crimp sleeve according to the invention; Fig. 3 is a schematic perspective view of an embodiment of a connector assembly according to the invention;

[0019] The accompanying drawing figures are intended to provide a further understanding of embodiments of the invention. They illustrate embodiments and, in conjunction with the description, serve to explain principles and concepts of the invention. Other embodiments and many of the noted advantages will be apparent upon reference to the drawings. Elements of the drawings are not necessarily shown to scale relative to one another.

[0020] In the figures of the drawing, identical, functionally identical and acting elements, features and components are provided with the same reference symbols, unless otherwise stated.

[0021] In the following, the figures are described coherently and comprehensively. DESCRIPTION OF EMBODIMENTS

[0022] Figure 1 shows an embodiment of a cable 50 according to the invention for crimping with a connector 101. The cable 50 has an outer conductor 52, an inner conductor 51, an insulating part 54, a sheath 53, and a crimp sleeve 10. The crimp sleeve 10 is crimped to the outer conductor 52 of the cable 50. In a later assembly step, the crimp sleeve 10 is also crimped to an outer conductor crimp 106. Figure 2shows an embodiment of a crimp sleeve 10 according to the invention for crimping with a cable 50. The crimp sleeve 10 has a recess 12 that forms an axially central window of the crimp sleeve 10. The window extends approximately over two-thirds of the circumference of the crimp sleeve 10. The crimp sleeve further has a first front end 13 and a plug-in end 14 opposite the front end 13. At the front ends 13 and 14, the crimp sleeve 10 has two radially inwardly directed lugs 11. The lugs 11 are relatively small compared to the overall circumference of the crimp sleeve 10. Due to the size of the lugs 11, they can hook into an outer conductor braid of the outer conductor 52 without significant deformation. This increases the holding force of the crimp sleeve 10 on the cable 50 with minimal mechanical deformation of the cable 50.Low mechanical deformation is desirable, as mechanical deformation impairs the electrical properties of a cable. Figure 3 shows a connector assembly 100 with a cable 50 and a connector 101. The connector 101 has an outer conductor 105, an insulating part 104, and an inner conductor 103. The cable 50 and the connector 101 are crimped at several points with an outer conductor crimp 106, so that the cable 50 is attached to the connector 101. The outer conductor crimp 106 is crimped to the outer conductor 105 of the connector 101.

[0023] It can be seen that the cable 50 has been stripped in the area of ​​the outer conductor crimp 106. This means that the sheath 53 of the cable has been removed in this area. In addition, the crimp sleeve 10 has been pushed onto the stripped area of ​​the cable 50. The outer conductor braid of the outer conductor 52 of the cable 50 has been turned over or folded back over the crimp sleeve 10. The outer conductor crimp 106 is crimped to the cable in the area of ​​the crimp sleeve 10. In the area where the outer conductor braid is folded over, the insulating part 54 and the inner conductor 51 are exposed. In this area, the insulating part 54 and the inner conductor 51 are surrounded by the outer conductor crimp 106 and the outer conductor 105 of the connector 101, respectively. List of reference symbols

[0024] 10Crimp sleeve 11Nose 12Recess 13Front end 14Front end 50Cable 51Inner conductor 52Outer conductor 53Sheath 54Insulating part 100Connector arrangement 101Connector 103Inner conductor 104Insulating part 105Outer conductor 106Outer conductor crimp

Claims

1. Connector arrangement (100) having a connector (101) and a cable (50) connected to the connector, wherein the cable has an inner conductor (51) as well as an outer conductor (52), comprising a braided sheath, and the connector has an inner conductor (103) as well as an outer conductor (105), wherein the connector arrangement has a crimp region in which the cable is crimped with a crimp barrel (10), wherein the crimp barrel has at least one radially inwardly directed lug (11), wherein the lug is formed at a frontal end (13; 14) of the crimp barrel, wherein the crimp barrel is crimped with the braided sheath and the braided sheath is formed within the crimp barrel, characterized in that the crimp barrel has a plurality of lugs which are formed at opposing frontal ends (13, 14) of the crimp barrel, wherein each lug bears against the outer conductor of the cable and engages in the braided sheath of the cable, wherein the crimp barrel has at least one recess (12) and the braided sheath engages in the recess.

2. Connector arrangement according to the preceding claim, wherein the crimp barrel is crimped with an outer conductor crimp (106) and the outer conductor crimp is crimped with an outer conductor of the connector.