EP3300174B1 - Electrical connector - Google Patents

Description

The invention relates to an electrical connector with a specific EMC shielding system.

Electrical connectors or connectors are known in a variety of configurations. They usually take on cable end pieces, so that then attached to the lead wires of the cable contacts can be contacted with plug-external electrical contacts to make an electrical connection. In the case of plugs, it is usual for seals and holders for the cable to be arranged in the plug housing. Moreover, it is also essential that the electromagnetic shielding of the cable formed by the EMC shield braid be contacted in the connector housing accordingly.

A plug with a corresponding shield is for example from the DE 299 16 204 U1 , from the JP 2005 123072 A and also from the DE 20 2012 101 656 U1 known.

Due to the very different construction of connectors, which results in particular due to the requirements, such a plug has a different number of components, a different arrangement of these components and a different configuration of these individual components. This results in very different embodiments, such a braid in such a connector housing expose and contact.

Depending on this, therefore, there are also extensive and sometimes very complicated production processes. This, in particular because the braided shield outside of the cable sheath processed in a partially complex manner with respect to the length, in particular must be tailored.

It is an object of the present invention to provide a plug, with which or in which a simplified production with individually improved contacting of the electrical shield is achieved in the connector housing.

This object is achieved by a plug according to the independent claims.

According to a first aspect of a method according to the invention for producing an electrical plug, a cable with an EMC screen braid and at least one wire strand with a cable end piece is mounted in a plug housing of the plug. Surrounded by a cable sheath EMC shield braid is bent in the axial direction of the cable over a partial length of a cable sheath edge and laid in the axial direction outside of the cable sheath. In this case, bending takes place around the edge of the cable jacket to the rear, so that this bent-over part of the EMC shielding braid is positioned in an overlapping manner with the cable sheath in the axial direction. The laid outside the cable sheath part length of the EMC shield braid is bent after bending around the cable sheath edge again in itself at least once, so that the EMC shield braid is formed in the radial direction than at least two layers outside the cable sheath. As a result, an improved configuration of the arrangement of the shielding braid outside of the cable sheath is achieved. This also favors a corresponding contacting of this portion of the shielding braid outside of the cable sheath with other components of the connector. In particular, thereby a simplified production, in particular the packaging, of the plug is made possible, in particular the processing of internal EMC shields.

Advantageously, the partial length of the EMC shielding braid, which is located outside the cable sheath, defined defined in such a way that in the further manufacturing steps of the connector from bending over this partial length to the cable sheath edge abverlängloses another in itself bending the partial length to produce in axial direction oriented partial descenders of this partial length is performed. This is a particularly advantageous embodiment, because thereby the length design and also the geometric design with which the EMC shield braid extends outside the cable sheath and forms, without such a trimming step is performed during assembly of the plug.

As a result, the assembly process or manufacturing method of such a connector is substantially simplified. Since such blanking steps, in which the initially provided EMC shielding braid must be shortened specifically, are no longer necessary, unwanted length tolerances that result from such cutting can be avoided.

Another independent aspect of the invention relates to a method of manufacturing an electrical connector in which a cable is mounted with an EMC shield braid and at least one lead wire with a cable end in a connector housing. Surrounded by a cable sheath of the cable EMC shield braid is bent in the axial direction of the cable over a partial length of a cable sheath edge and moved in the axial direction outside of the cable sheath. In particular, a bending around the cable edge to the rear and thus carried out overlapping with the cable sheath in the axial direction. The partial length is defined in such a defined manner before bending around the cable jacket edge that in the further manufacturing steps of the plug from bending this partial length to the cable jacket edge a ablängungsloses or ablängungsfreies further bending in itself the partial length for generating oriented in the axial direction partial descenders is performed , The relevant advantages have already been mentioned for the advantageous embodiment of the abovementioned first aspect of a method according to the invention.

Preferably, the partial length is predetermined defined before bending around the cable sheath edge by a clamping bush of the plug is applied in an intermediate mounting position on the outside of the cable sheath such that an axial distance between a front end of the cable to which extends the EMC shield braid, and a contact edge of the clamping bush for applying a front end of the EMC shield braid is a double length of the partial length. The clamping bush is a component which remains in the finished state of the plug in this and thus does not constitute an auxiliary tool in the manufacture of the electrical connector, but is a functional component of the plug itself.

By cleverly used by anyway required components of the plug in the manufacture of these, to defined specifications for the part length make, in a particularly advantageous manner then the continuous production and in the context of bending or folding of the partial length to produce the individual arrangement of the EMC shielding system outside of the cable sheath are made possible. In this context, it is then no longer necessary to determine by absolute measurement an exposed portion of this braid, but it can be done indirectly starting from the cable sheath edge by specifically positioning the clamping bush, which then also depends on how the final geometric design and local location of this over the part length extending portion of the EMC shield braid in the final state of the plug should be. Therefore, the desired final configuration of this subregion of the EMC shielding braid outside the cable sheath and thus of that subregion which is no longer surrounded by the sheath is taken as a basis for this production step, in order then to specify the dimension for this partial length.

Again, this then contributes in a simple and advantageous manner to the precise and ablation-free multiple bending of this part length, in which case this partial length can be generated in accordance with precisely dimensioned sub-descenders with precise local location to other components of the plug targeted.

Preferably, after adjusting the intermediate mounting position of the clamping bush, the cable jacket is removed from the front end to half of the distance to produce the cable jacket edge. The EMC shield braid is then exposed over this half length of the pitch representing the partial length. By clearly and precisely predetermined length ratios can then be removed or separated in extremely precise position of the cable sheath and the partial length defined and precisely generated.

Advantageously, the EMC shield braid is braided or fanned around prior to bending around the cable sheath. Such EMC shielding braid can be constructed as a kind of network of individual braid threads, the braid threads are connected to each other, in particular woven, so that there is a corresponding mesh size. Without undesirably damaging the braided screen, this partial length results in a controlled and desired decoupling of the braided threads What is done by the weaving or unbundling. By this configuration, the individual braid threads can then be handled much better, especially with regard to their bending and their multiple folding. Just a back bending is limited in such a tubular EMC shield braid, so considered by this advantageous braiding the individual threads considered to be better and better. As a result, the individual braid threads can be positionally precisely arranged when they are bent around the cable sheath edge. The further bending of this then the partial length performing individual braid threads is then simplified and can be made more precisely with respect to the partial descenders to be created as well as the local position of the braid threads.

Advantageously, it is provided that this fanning takes place by an auxiliary tool, which is then not part of the plug itself. For example, a rotary brush can be provided here.

With regard to the braiding, a decoupling of braided threads is understood, in which case the threads can be braided or wound or else arranged and connected to one another in a different manner. This means that an EMC braided screen may be a tube wound or braided from the braid threads or otherwise made. Under the braiding or unbundling is thus understood that any type of EMC shield braid, in which the braid threads can be connected by a variety of ways, can be decoupled.

In an advantageous embodiment, the clamping basket or the clamping bush may have a seal, in particular a single lip seal or a multiple lip seal, which rests sealingly on the cable sheath or on its outer side. The clamping bush is formed as a tubular part which rests on an outer side of the cable sheath. On a cable jacket edge facing the end of the clamping sleeve may preferably be slit axially, in which case a plurality of such axial slots are formed in the circumferential direction about the longitudinal axis of the cable and thus also about the longitudinal axis of the plug. This provides flexibility in terms of their radial width.

For example, a conical or conical hollow part or a hollow ring can be provided for bending the braid threads around the cable jacket edge. This can then engage in the interior of the EMC shield braid, which is designed tubular, and bend these braid threads radially outward.

Advantageously, a single-layered region of the EMC shielding braid is produced after bending the EMC shield braid to the cable sheath edge outside of the cable sheath on which a clamping sleeve surrounding the area is applied before generating the double layer. This is another very advantageous method step, because by this clamping sleeve, which is another functional component of the plug itself, which then remains in the finished state in the plug and is functionally used in this respect, the further bending or folding the part length in itself essential favored. A targeted and thus locally accurate further folding of the parts in itself is achieved. Also, then the particular decoupled braid threads can be precisely edited with respect to their exact local location at their then defined Umbiegestellen.

Preferably, the collet is provided with an axial length that is less than half the part length. In this case, the clamping sleeve is arranged so as to overlap the free ends of braid threads of the EMC shield braid axially adjacent to a stop edge of a clamping sleeve which is separate from the clamping sleeve. The clamping sleeve is also positioned axially offset back to the cable jacket edge. Due to this specific positioning of the clamping sleeve and its individual specific geometric configuration, the further procedure for generating the at least double-layered length of the part bent in itself can be substantially improved. It is thus achieved a very precise folding or bending of the partial length at desired specific points this part length and then automatically generated by corresponding axial movement of the clamping sleeve. Additional additional tools are therefore not needed and it can be generated in the context by anyway required in the plug and after production and finally in the connector remaining parts further production of this specific bending and folding the part length. As a result, the use of actual auxiliary tools for the production of the plug, which are then however no components of the plug itself, significantly reduced become. Therefore, an extremely advantageous production process is produced.

It can also be provided that the part length bent over the cable jacket edge does not necessarily abut the front edge against the stop edge before generating the further bend for producing the at least double layer, but is axially spaced and therefore contactless thereto.

Preferably, the clamping sleeve, in particular together with the clamping sleeve coupled to the clamping sleeve, pushed in the axial direction in the direction of the cable jacket edge, in particular a front edge of the clamping sleeve, exactly to the cable sheath edge. As a result, the area of the partial length of the EMC shield braid not surrounded by the clamping sleeve is fanned radially outward, and radially projecting braid loops of the braided threads of the EMC shield braid are formed. In an extremely advantageous manner, a further assembly intermediate position is thereby achieved by a very simple movement, namely a straight displacement of the clamping sleeve in the axial direction, in which the partial length in its area which is not covered and surrounded by the clamping sleeve, brought into a desired Vorbiestellungung , which is accompanied by the braid loops or braid loops.

In particular, the clamping sleeve is connected before moving so with the part length that the braid threads are also moved with the axial displacement of the clamping sleeve. As a result, they are automatically forwarded and at defined locations to produce the multi-layered.

Advantageously, a screen sleeve separate from the ferrule is pushed coming from the edge of the cable jacket axially over the mesh loops and the clamping sleeve. As a result, to further produce the at least double layer of the partial length is achieved that the mesh loops are compressed and between an outer side of the clamping sleeve and an inner side of the shield sleeve in the radial direction double-layered braid threads of the EMC shield braid are generated. This Doppellagigkeit the braid threads is then held positionally safe, since they are kept in contact with the outside of the clamping sleeve and contacted with the inside of the shielding sleeve radially positionally secure. The partial undercuts of the partial length generated by the double layer are thus also defined Further, these double-layered sub-descendants are then further held substantially in the axial direction. This results in an outside of the cable sheath formed shielding system or a shield assembly having a very specific location of the plug over a very specific axial length a double layer.

The shielding sleeve is an at least partially electrically conductive component, which is connected to an electrically conductive region with the EMC shield braid and the connector housing.

Preferably, in the context even considered in the radial direction at least three-layer design is achieved. Because in addition to this directly adjacent double layer of the sub-descenders between the clamping sleeve and the shielding sleeve another single layer between the cable sheath and the clamping sleeve is generated. It is thus created by a single contiguous and thus not pieced or generated by separate sections part length considered in the radial direction at least two-layered and thus at least two-ply, in particular three-layer EMC shield braid part unit. This is formed from the woven individual woven threads.

Advantageously, the two-ply braid threads are surrounded over their entire axial extent of the shielding sleeve. They are therefore also protected in the context, so that once reached positional arrangement with respect to the multi-layer in the radial direction and with respect to the axial extent, in particular to the longitudinal axis of the cable and thus also to the longitudinal axis of the plug extending parallel axial extent of these individual braid threads permanently is.

In an advantageous manner, an EMC shield region is thus also created outside the cable sheath, which is formed in the circumferential direction about the longitudinal axis and thus also formed by 360 °.

In an advantageous manner, the plug housing is applied circumferentially around the shielding sleeve completely and over the entire axial length of the shielding sleeve. The plug housing thus surrounds the shielding sleeve and in the context then the partial length of the EMC shielding braid, which is located outside the cable sheath, completely.

Advantageously, it is provided that the clamping sleeve after moving into its final position and thus in its final installation position in the connector, which is defined by the position at which a front end of the clamping sleeve is flush with the cable jacket edge, is crimped. This fixes the axial position. As a result, a slipping of the shielding sleeve in the axial direction as well as a then axially undesirable displacement of the shield sleeve surrounded by the longitudinal sections of the partial length of the braid threads are prevented. Particularly advantageous thereby a strain relief of the cable is achieved.

If the cable also has an extension strand as a stranded wire, which is usually under the overall shield or a single shield or pair shield of the EMC shielding, then this can then be transferred after the partial length has been bent around the edge of the cable jacket and before the further generation of the double layer. The drain wire can then be contacted with the EMC screen braid.

If the cable also has a so-called inner jacket, it can then be cut off at this production time or in this production phase.

Preferably, a radially inner first layer of the partial length of the EMC shield braid is generated before generating a further radially outer lying at least second layer of the partial length of the EMC shield braid. The production therefore takes place virtually from the inside to the outside, which simplifies the bending processes or folding processes.

An inventive plug comprises a plug housing, which is tubular. This connector housing surrounds a clamping bush, which is annular. In particular, the clamping bush also comprises a seal, in particular a single lip seal or a multiple lip seal. The clamping bush is in particular circumferentially and completely surrounded by the connector housing in the axial direction of the plug. The plug also includes the clamping sleeve, which can also be referred to as a crimp barrel. The clamping sleeve is a component of the plug which is separate from the clamping bush. The clamping sleeve is as another Ring formed. The clamping bush preferably has different sections which have different outer radii. In the assembled state of the plug, the clamping sleeve is pushed over a portion of the clamping bush and thus surrounds the portion of the clamping bush on the circumference. Between an inner side of the clamping sleeve and an outer side of the clamping bush is in the region of the clamping bush, which is circumferentially surrounded by the clamping sleeve, a receiving space for a first layer of an EMC shield braid of a cable which can be coupled to the plug and which is in the connector housing can extend into trained. This first gap is therefore also an EMC shield mesh interspace. This first intermediate space is therefore designed for radially clamping and thus accurately fitting receiving a screen mesh layer of an EMC shield braid.

The plug also includes a shielding sleeve, which is also designed as a ring. The shielding sleeve has a larger radius than the clamping sleeve. In the assembled state of the plug, the shielding sleeve completely surrounds the clamping sleeve circumferentially, and in particular also in the axial direction of the plug, the shielding sleeve extends at least over the entire axial length of the clamping sleeve. The shielding sleeve and the clamping sleeve are formed so that in the radial direction between an inner side of the shielding sleeve and an outer side of the clamping sleeve, a further intermediate space or receiving space is formed. This second intermediate space is for receiving at least one double layer of an EMC shielding braid of a cable, which is connectable to the connector housing and can extend into the connector housing. This second intermediate space is therefore designed for radially clamping and thus accurately fitting receiving at least two shield braid layers of an EMC shield braid. The plug is therefore according to the invention with its essential parts comprising the clamping bush, the clamping sleeve and the shielding sleeve, which are separate parts to each other, designed so that they are arranged in the axial direction of the plug overlapping and peripherally surrounding each. In this case, differently defined intermediate spaces are formed in the radial direction at specific locations, which are each designed to be individually defined for accommodating one or more layers of an EMC shielding braid. Thus, two EMC shield braid layer spaces are formed.

In particular, in the case of a plug in the direction of rotation about the longitudinal axis, a 360 ° EMC shield support is formed which is designed, in particular, as an annular bearing surface between a connecting region of the shielding sleeve and the plug housing designed for connection to an inner side of the plug housing.

In particular, we thereby also generates an axial removal of free ends of the braid threads from the stop edge, so that in the final state these free ends are arranged at a specific distance to the stop edge.

Preferably, in the mounted end state, an outer side of the shielding sleeve is arranged adjacent to an inner side of the plug housing.

The shielding sleeve is an outer termination of the shield arrangement of the plug and thus a final wrapping element.

Furthermore, the invention also relates to a further plug having a plug housing and a cable, which has an EMC shielding braid and at least one stranded wire. The cable has a cable end, which is mounted in the connector housing. Surrounded by a cable sheath EMC shield braid is bent in the axial direction of the cable over a partial length of a cable sheath edge and moved in the axial direction outside of the cable sheath. The EMC shield braid is in this case arranged over the partial length of the cable sheath edge to the rear and with the cable sheath bent over in the axial direction overlapping. The laid outside of the cable sheath part length of the EMC shield braid is bent at least once in itself, so that the EMC shield braid is formed in the radial direction than at least two layers outside the cable sheath.

Preferably, it is provided that a radially inner, formed from the partial length first layer between a cable sheath surrounding the clamping bush and the clamping bushing is formed circumferentially completely and axially only partially surrounding clamping sleeve.

Advantageously, one between the cable sheath embracing clamping sleeve and the clamping sleeve is circumferentially complete and axial completely surrounding shielding sleeve formed from the partial length double layer.

The clamping bush, the clamping sleeve and the shielding sleeve are mutually separate parts of the plug itself.

Advantageously, the layers which are formed by the partial length of the EMC shielding braid, formed by over the part length mutually unbuttled braid threads.

Further geometrical configurations and positional arrangements of components of the plug can be taken from the figures. With regard to the orientation to terms such as "front", etc., reference is made to an end of the plug, which is a free end and is designed for coupling with a plug-external element, in particular a mating plug.

Further features of the invention will become apparent from the claims, the figures and the description of the figures. The features and feature combinations mentioned above in the description, as well as the features and combinations of features mentioned below in the description of the figures and / or shown alone in the figures, can be used not only in the respectively specified combination but also in other combinations or in isolation, without the frame to leave the invention. Thus, embodiments of the invention are to be regarded as encompassed and disclosed, which are not explicitly shown and explained in the figures, however, emerge and can be produced by separated combinations of features from the embodiments explained. Embodiments and combinations of features are also to be regarded as disclosed, which thus do not have all the features of an originally formulated independent claim.

Fig. 1

eine Explosionsdarstellung eines Ausführungsbeispiels eines erfindungsgemäßen Steckers ohne ein Kabel;

Fig. 2

eine schematische Schnittdarstellung durch den zusammengesetzten Stecker gemäß Fig. 1 mit einem montierten Kabel;

Fig. 3

eine vergrößerte Teildarstellung eines Teilbereichs von Fig. 2;

Fig. 4 bis Fig. 23

Darstellungen von jeweils verschiedenen Herstellungsphasen bei einem Verfahren zum Herstellen eines Ausführungsbeispiels eines erfindungsgemäßen Steckers.

Embodiments of the invention are explained in more detail below with reference to schematic drawings. Show it:

Fig. 1

an exploded view of an embodiment of a connector according to the invention without a cable;

Fig. 2

a schematic sectional view through the composite connector according to Fig. 1 with a mounted cable;

Fig. 3

an enlarged partial view of a portion of Fig. 2 ;

Fig. 4 to Fig. 23

Representations of different production phases in a method for producing an embodiment of a connector according to the invention.

In the figures, identical or functionally identical elements are provided with the same reference numerals.

In Fig. 1 an embodiment of components of a plug 1 is shown in an exploded view. The connector 1 comprises a tubular connector housing 2. This connector housing 2 also forms the outer shell of this connector 1.

In addition, the plug 1 comprises an electrically insulating insulating body 3, which is also tubular and on a front side 4 a plurality of passage openings 5, of which for clarity serving only one passage opening is provided with the reference numeral comprises. The passage openings 5 are provided for the passage of electrical contacts.

In addition, the plug 1 comprises a tubular insulator 3 separate further electrically insulating insulator 6. This insulator 6 is circumferentially surrounded in the assembled state of the plug 1 of the first insulator 3. The second insulating body 6 is designed to receive the electrical contacts 7, which are inserted into groove-like receptacles 8 of the second insulating 6 and are held axially.

In addition, the plug 1 comprises a shielding sleeve 9, which is annular. Furthermore, the plug 1 comprises a clamping sleeve 10, which is also designed as a ring. As additional to the previous components, which are separate parts, additional separate component, the plug 1 comprises a clamping bush 11. The clamping bush 11 preferably has also a seal, in particular a single lip seal or a multiple lip seal on. The clamping bush 11 is also annular or tubular and has at its front in the direction of the longitudinal axis A of the plug 1 end 12 a plurality of circumferentially spaced around the axis A to each other and formed axially extending slots.

In addition, the plug 1 comprises a connecting ring 13. This is formed in the embodiment as a screw ring which is screwed with an internal thread with an external thread 14 of the plug housing 2 and also forms an outer end of the plug. However, the connecting ring 13 may also be a compression sleeve which is pressed in the assembled end state of the plug 1 with the connector housing 2. However, the connecting ring 13 may for example also be designed for latching with the plug housing 2. The external thread 14 is then designed in each case by the appropriate counter-contour to the connecting ring 13 in the alternative embodiments. In principle, however, the connection between the connecting ring 13 and the plug housing 2 can be formed in a variety of non-positively or positively locking manner.

In the assembled state, it is provided that feet 15 of the second insulating body 6 are arranged adjacent to a radially inwardly standing flange 16 of the shielding sleeve 9. The shielding sleeve 9 is designed so that it surrounds the clamping sleeve 10 circumferentially and preferably also in the axial direction has a length which corresponds at least to the length of the clamping sleeve 10, so that the clamping sleeve 10 is completely surrounded in axial length of the shielding sleeve 9.

In addition, the clamping bush 11 has a radially outwardly raised projecting and in particular completely circumferential stop edge 17. On the front side of the clamping sleeve 10 is in the assembled state fitting, wherein the clamping sleeve 10 surrounds a front side portion 18 of the clamping bush 11 circumferentially and thus the entire clamping bush 11 only viewed over a partial length in the direction of the axis A surrounds.

In Fig. 2 is shown in a sectional view of the composite connector 1, wherein in addition also a cable 19 is shown fully assembled in the connector 1. The cable 19 is shown for clarity serving only with a same common sectional area, so at this sectional view in Fig. 2 the individual components of the cable 19 are not shown in detail. There are shown in particular on the clamping bush 11 formed sealing webs or sealing rings 20 and 21 in their normal position when the cable 19 is not installed. At the in Fig. 2 shown assembled position, these webs 20 and 21 are pushed to the side, so that they rest on an outer side 22 of a cable sheath 23.

As shown in Fig. 2 It can also be seen that the connector housing 2 has a base part 24 on which a rotary sleeve 25 is arranged rotatably mounted on the front side. This rotary sleeve 25 is also part of the connector housing. 2

In the embodiment shown, it can also be seen that the clamping bush 11 has this designated by the slots front portion 18 which is connected to a sealing member 28 and in this respect together represents the clamping bush 11.

In addition, it can be seen that in the radial direction and thus perpendicular to the axis A between an outer side 11a of the clamping bush 11, in particular an outer side of the portion 18, and an inner side 10b of the clamping sleeve 10, a first intermediate space is formed, which serves as EMC shield braid layer. Interspace 29 is formed. In this first EMC shield braid layer space 29, a first layer 30 of an extending outside of the cable sheath 23 part length of an EMC shield braid of the cable 19 is arranged. In particular, here only such a layer 30 is accurately fitting and thus also held pressed by the inner side 10b and the outer side 11a.

This partial length of the EMC shield braid is bent around a cable jacket edge 23a of the cable sheath 23 and arranged displaced in the axial direction to the rear. This means that this partial length of this EMC shield braid extends in the axial direction parallel and overlapping with the cable sheath 23 radially further outboard than the outer side 22 of the cable sheath 23. Thus, in particular this partial length viewed in the radial direction is also arranged at a distance from the outer side 22, in particular at least by the clamping bush 11 arranged between the partial length and the outer side.

In addition, between an outer side 10a of the clamping sleeve 10 and an inner side 9b of the shielding sleeve 9, viewed in the radial direction, a further, second intermediate space in the form of an EMC shielding braid layer gap 31 is formed. In this further EMC shield braid layer space 31, which is located radially further outward than the first EMC shield braid layer space 29, a further part lower length of this partial length of the EMC shield braid is at least double-layered. Thus, as viewed in the radial direction, two layers are formed on each other, these being the layers 32 and 33. The partial length of the EMC shield braid of the cable 19 is formed integrally and without interruption and the layers 29, 32 and 33 result from corresponding bending of this partial length.

One end of the plug 1, which is formed by the end facing away from the cable 19, and represents a free end is for coupling with a plug-external element, in particular a mating connector formed.

As well as in Fig. 2 can be seen, an outer side 9a of the shielding sleeve 9 lies flat against an inner side 24a of the part 24 of the plug housing 2. Alternatively, a subsequently explained in more detail connection region 34 of the shielding sleeve 9 abut against the inner side 24a, in particular abut only this connecting portion 34 and the jacket wall of the shielding sleeve 9 spaced from the inside 24a.

In addition, it can also be seen that the clamping sleeve 10 rests against the stop edge 17 on the front side. Furthermore, it can be seen that the shielding sleeve 9 has a connection region 34 on its rear edge facing the clamping bush 10, which can be a snap element or a latching element. The connecting region 34 is designed in particular for the radial connection with the inner side 24a. In particular, the connection is then such that an axial position assurance is achieved to each other. For example, therefore, an anchoring or toothing or a clawing be formed.

It may additionally or instead also be provided that on the inner side 9b of the shielding sleeve 9, in particular on a flange 16 remote from the rear end, a Verdrehschutzeinrichtung is formed. This Verdrehschutzeinrichtung is integrated in particular in the inside 9b and formed as an axial toothing. This is a rotational movement about the longitudinal axis A relative to the cable 23 and also relative to the clamping bush 11 and the clamping sleeve 10 is prevented.

As shown in Fig. 2 is shown, this connecting element 34, the entire stop edge 17 engages behind or arranged over snapping, so that here also an axially fixed connection and positionally secure arrangement between the three separate components, namely the clamping bush 11, the clamping sleeve 10 and the shield sleeve 9 is reached.

As well as in Fig. 2 can be seen, the layers 29, 32 and 33 are arranged parallel to each other in the axial direction and in particular also substantially over the same length formed to each other and thus in the axial direction, in particular, congruently positioned.

In Fig. 3 is an enlarged view of the partial section I of the plug 1 in Fig. 2 shown. The specific arrangement of the clamping bush 11, the clamping sleeve 10 and the shielding sleeve 9 and the configuration of said interstices 29 and 31 and the respective formed layers 29, 32 and 33 can be seen in more detail here.

Preferably, it is also provided that the radial height of the stop edge 17 corresponds to the radial structure comprising the first layer 30, the radial thickness of the clamping sleeve 10 and the radial thicknesses of the layers 32 and 33. In addition, it is preferably provided that the clamping sleeve 10 has an axial length which corresponds substantially, in particular equal to the axial distance between the stop edge 17 and the front cable jacket edge 23a.

In particular, it is also provided, as already mentioned above by way of example, that the axial lengths formed by the three layers 30, 32 and 33 in the exemplary embodiment advantageously extend as partial descenders of the entire partial length of the EMC shielding braid extending outside the cable sheath 23. are essentially, in particular the same length. This applies in particular to the sub-descenders which extend parallel to the axis A.

Below is an embodiment of an assembly process according to the invention or manufacturing process of the plug 1 in particular explained with the cable 19. For this purpose, as shown in Fig. 4 at the beginning of a manufacturing process, the cable 19 is provided. A cable end piece 35 is, as in Fig. 2 and Fig. 3 is shown in the assembled state, provided for mounting in the connector housing 2.

In addition, as shown in Fig. 4 the clamping bush 11 provided. This may be formed in one piece or, as it is Fig. 2 and Fig. 3 has been explained, composed of two separate parts. By means of an auxiliary tool 36, in particular an expansion sleeve, which receives the clamping bush 11, the clamping bush 11 is pushed onto the cable 19, so that it surrounds the cable sheath 23.

How to do it in Fig. 5 is shown, this is done in a well-defined manner. In this context, namely, the clamping sleeve 11 is pushed at a predetermined defined distance a1 along the axis A, in which case the distance starting from the front end 37 of the cable 19, as shown in FIG Fig. 4 was provided, dimensions. It can be specified here a distance a1 between this front end 37 and a rear end 38 of the clamping bush 11. However, it can also be provided that a distance a2 between the front end 37 and the stop edge 17 is determined.

This distance a2 is set defined so that it corresponds to twice the partial length, which should have the EMC shield braid of the cable 19 outside the cable sheath 23 in the finished state of the plug 1. This partial length is thus already based in this manufacturing state based on the final desired layers and lengths of the design of the EMC shield braid outside of the cable sheath at the final state produced in order to determine this distance and pretend can.

In particular, the entire generation of the partial length of the EMC shielding braid, which extends in the finished state of the plug 1 outside the cable sheath 23 or which is laid outside of the cable sheath 23, without cutting this partial length during the manufacturing process. This also means that advantageously starting from the manufacturing step, as in Fig. 4 has been shown until the completion of the connector 1 is a continuous production and processing of the partial length of this EMC shield braid.

In a subsequent subsequent production step, as shown in FIG Fig. 6 the cable jacket 23 over a portion of the distance a1 and thus also over a portion of the distance a2 removed. This takes place in such a way that the cable sheath 23 is removed starting from the front end 37 over exactly half of the distance a2. As a result, the cable jacket edge 23a is formed. In turn, this defined ablation length then a partial length a3 of an EMC shield braid 39 of the cable 19 is exposed. This EMC shield braid 39 may be formed like a net or lattice and may for example be braided or wound or else configured in a different manner. This EMC shield braid 39 is formed like a shell and designed completely circumferentially about the axis A, so that an optical coverage of in particular between 85% and 95% is generated.

The cable 19 may additionally have an inner jacket. This can be surrounded by the EMC shield braid 39. In addition, the cable 19 preferably also has a filling material which is likewise surrounded by the EMC shield braid 39. In this filling material, which may be a non-woven or other tissue, preferably a plurality of lead strands 40 ( Fig. 2 ) are embedded, on the front end then the already mentioned electrical contacts 7 are attached.

According to the production step Fig. 6 Subsequently, the EMC shield braid 39 is then unbound and thus braided, so that the interconnected individual braid threads 41 of the EMC shield braid 39 are exposed over this partial length a3 for themselves and thus are decoupled from each other. This can be done, for example, with another auxiliary tool, such as a rotary brush. In another manufacturing step, as he then in Fig. 8 is shown, then a flipping this EMC shield braid 39, which has been exposed outside the cable sheath 23. In this case, a bending around the cable sheath edge 23a takes place to the rear, so that, as shown in FIG Fig. 8 then the braid threads 41 rest against the outside 22 and extend axially. They are thus arranged in the axial direction overlapping with the cable sheath 23 and radially outboard. As per Fig. 8 can also be seen, it is achieved in an advantageous manner that the front free ends 41a of the braid threads 41 abut against the stop edge 17. You must in the context according to particular of the above advantageous manufacturing steps therefore can no longer be cut to length and can thus their position, as in Fig. 8 is shown cut-free and thus reach without shortening their length. This is a significant advantage of the manufacturing process, since thus corresponding cutting steps of the braid threads 41 can be omitted.

As in Fig. 9 By way of example, such bending over of the braid threads 41 can be seen starting from the illustration in FIG Fig. 7 to achieve the condition according to Fig. 8 through an in Fig. 9 only symbolically shown auxiliary tool, namely, for example, the cone element or cone element 42, take place. This is designed as a hollow ring and can be pushed over the cable sheath 23. By this procedure, the braid threads 41 are oriented oriented parallel to the cable sheath 23 and extend in the context then also relatively evenly in the direction of the axis A. As already mentioned above, the cable 19 may have an already mentioned inner sheath 43, as shown in FIGS. 8 and 9 then exposed. This inner sheath 43 is then, if it is present, according to the further method step in Fig. 10 removed, so that the already mentioned wire strands 40 are exposed. By way of example, six line strands are present here in the exemplary cable 19.

The inner jacket 43 is removed over the length a3. In addition, then also according to the representation in Fig. 10 removed the previously mentioned filling material, so that the lead wires 40 are made completely exposed.

If, in an advantageous embodiment, the cable 19 also additionally has what is known as an extension cord, then it is also folded over in a then subsequent step, in particular, and connected to the EMC screen braid 39.

In another manufacturing step, as he then in Fig. 11 is shown, then the already mentioned clamping sleeve 10 is pushed from the front and thus coming from the wire strands 40 ago in the direction of the clamping bush 11. The clamping sleeve 10 is pushed around the braid threads 41 encompassing up to the stop edge 17.

In the further manufacturing process is then as shown in Fig. 12 both the clamping bush 11 and the clamping sleeve 10 in particular jointly and simultaneously pushed back in the opposite direction towards the cable sheath edge 23a, in particular until a front end or a leading edge 10c of the clamping sleeve 10 is on the same axial position as the cable sheath edge 23a. As can be seen from the presentation in Fig. 12 As a result of this advancing movement, a radial fanning out of the braid threads 41 is automatically effected so that braided loops or braided loops 44 are formed in this intermediate manufacturing state.

In a further manufacturing step according to Fig. 13 Then, a radial force is applied to the clamping sleeve 10, wherein it is crimped.

In a further production step, as shown in FIG Fig. 14 pushed the shielding sleeve 9 from the exposed lead wires 40 forth on the cable 19. The sliding then takes place in the direction of the clamping bush 11 up to an end position of the shielding sleeve 9, as then in Fig. 2 also shown. By pushing the radially projecting mesh loops 44 are bent to the outside 10 a of the clamping sleeve 10 out, and by the geometric configurations of the shielding sleeve 9 and the clamping sleeve 10 is then already to Fig. 2 and Fig. 3 addressed EMC shield braid layer gap 31 generated in the then by this pushing the shielding sleeve 9 to its final position, as they then in Fig. 15 is shown, the double-layered design is generated automatically in this gap 31.

In Fig. 15 In this case, the state in which the connecting element 34 has snapped or latched behind the stop edge 17 is already shown.

According to another manufacturing step, as in Fig. 16 is shown, the lead wires 40 are then stripped at the front end, and as shown in FIG Fig. 17 then the contacts 7 are applied to the stripped regions of the lead wires 40. According to the further step in Fig. 18 Then, the lead wires 40 are bent radially outward, in particular arranged in a star shape to each other, so that then the second insulating element or the second insulating 6 are applied can Fig. 19 ). Between the already mentioned feet 15 of this second insulator 6 then a respective stranded wire 40 is placed, which then as shown in FIG Fig. 20 in turn be folded inward and the lead wires are each embedded in a groove 8, in particular there are also clipped. According to the next step, how he then in Fig. 21 is shown, the first insulating body 3 is pushed onto the second insulating body 6 and according to the further step in Fig. 22 then the connector housing 2 is applied. This is followed in particular by a pressing, and according to the step in Fig. 23 is then finally the connecting ring 13 is applied and connected to the connector housing 2, in particular screwed. As already mentioned above, for example, a compression can be formed. In addition, a claw of the connecting portion 34 is generated in the inner side 24 a.

In general, therefore, there is also provided a method of manufacturing an electrical connector 1 in which a cable 19 with an EMC shield braid 39 and at least one lead strand 40 with a cable end piece 35 is mounted in the connector housing 2. Surrounded by a cable sheath 23 EMC shield braid 39 is bent in the axial direction of the cable 19 over a partial length a3 on a cable sheath edge 23a backwards and with the cable sheath 23 in the axial direction overlapping and moved in the axial direction outside of the cable sheath 23. The part length a3 of the EMC shield braid 39 laid outside the cable sheath 23 is bent over again at least once after bending around the cable sheath edge 23a, so that the EMC shield braid 39 is formed at least two layers outside the cable sheath 23 in the radial direction.

As a general and independent, the partial lengths a3 before bending around the cable sheath edge 23a defined defined such that in the further manufacturing steps of the plug 1 from the bending of this partial length a3 to the cable sheath edge 23a a ablängungsloses further in itself bending the partial length a3 for the generation of in the axial direction oriented sub-descenders of this partial length a3 is performed. These partial descenders are defined by the generated layers of this partial length a3.

Claims (14)

1. A plug (1) with a plug housing (2), in which a clamping bush (11), a clamping sleeve (10) and a shielding sleeve (9) of the plug (1) are received, wherein the annular clamping sleeve (10) is arranged circumferentially surrounding a partial area (18) of the annular clamping bush (11) and a first EMC shielding braid layer clearance (29) for receiving a first shielding braid layer (30) is configured in radial direction between an inner side (10b) of the clamping sleeve (10) and an outer side (11a) of the partial area (18) of the clamping bush (11) surrounded by the clamping sleeve (10), and the annular shielding sleeve (9) is arranged circumferentially surrounding the clamping socket (10), wherein a second EMC shielding braid layer clearance (31) for receiving multiple further shielding braid layers (32, 33) is configured between an inner side (9b) of the shielding sleeve (9) and an outer side (10a) of the clamping bush (10).
2. The plug (1) according to claim 1,
   characterized in that
   the second EMC shielding braid clearance (31) is configured for receiving at least one double layer, in particular only one double layer, of an EMC shielding braid (39) of a cable (19), which is connectable to the plug housing (2) and can extend into the plug housing (2).
3. The plug (1) according to claim 1 or 2,
   characterized in that
   the first EMC shielding braid clearance (29) is configured for receiving only one layer of an EMC shielding braid (39) of a cable (19), which is connectable to the plug housing (2) and can extend into the plug housing (2).
4. The plug (1) according to any one of the preceding claims,
   characterized in that
   an outer side of the shielding sleeve (9) is arranged abutting on an inner side of the plug housing (2) in the assembled final state.
5. The plug (1) according to any one of the preceding claims,
   characterized in that
   the shielding sleeve (9) is an outer termination of the shielding arrangement of the plug (1).
6. The plug (1) according to any one of the preceding claims,
   characterized in that
   the clamping sleeve (10) is formed as a ring.
7. The plug (1) according to any one of the preceding claims,
   characterized in that
   the clamping bush (11) is completely surrounded by the plug housing (2) on the circumferential side as well as in axial direction of the plug (1).
8. The plug (1) according to any one of the preceding claims,
   characterized in that
   the plug (1) comprises a cable (19) with an EMC shielding braid (39) and at least one line strand (40) with a cable end piece (35), which is mounted in the plug housing (2), wherein the EMC shielding braid (39) surrounded by a cable jacket (23) is bent at a cable jacket border (23a) over a partial length (a3) in axial direction of the cable (19) and is laid in axial direction outside of the cable jacket (23), wherein a partial length (a3) of the EMC shielding braid (39) laid outside of the cable jacket (23) is at least once bent in itself such that the EMC shielding braid (39) is formed at least double-layered in radial direction outside of the cable jacket (23).
9. The plug (1) according to claim 8,
   characterized in that
   a radially inner, first layer (30) formed from the partial length (a3) is configured between a clamping bush (11) encompassing the cable jacket (23) and a clamping sleeve (10) circumferentially encompassing the clamping bush (11).
10. The plug (1) according to claim 8 or 9,
    characterized in that
    a double layer (32, 33) formed from the partial length (a3) is configured between a clamping sleeve (10) encompassing the cable jacket (23) and a shielding sleeve (9) circumferentially encompassing the clamping sleeve (10).
11. The plug (1) according to claim 9 or 10,
    characterized in that
    the layers (30, 32, 33) are configured by braid filaments (41) of the EMC shielding braid (39) unbraided from each other over the partial length (a3).
12. The plug (1) according to any one of the preceding claims 8 to 11,
    characterized in that
    the shielding sleeve (9) is an electrical component, which is connected to the EMC shielding braid (39) and the plug housing (2) with an electrically conducting area.
13. The plug (1) according to any one of the preceding claims 8 to 12,
    characterized in that
    the double-layered braid filaments of the EMC shielding braid (39) are surrounded by the shielding sleeve (9) over their entire axial extension.
14. The plug (1) according to any one of the preceding claims,
    characterized in that
    the plug housing (2) is arranged circumferentially completely surrounding the shielding sleeve (9) over the entire axial length of the shielding sleeve (9).

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