EP3327868B1 - Electrical connector for a multi-core electric cable - Google Patents

Description

The invention relates to an electrical connector for a multi-core electrical cable according to the preamble of claim 1.

Such an electrical connector comprises at least two input or cable-side electrical contact elements, for example in the form of contact plates, to each of which a wire of the associated electrical cable (via a suitable connection point) is connected, as well as at least two output-side electrical contact elements, for example in the form of contact plates, of which in each case an electrical plug element, for example in the form of an electrically conductive pin, goes off in order to be able to establish an electrical connection with a mating connector. Further, the connector includes a tubular outer conductor extending along a longitudinal direction from a cable-side axial end to an output-side axial end and enclosing the cable-side and the output-side contact elements, and at least one drain wire of the associated electric cable, the one Contacted screen of the cable and which is guided separately from the wires of the cable to the connector.
This arrangement is based on a classic construction of an electrical connector for multi-core electrical cable to the input side, an electrical cable is connected and the output side is provided with electrical connector elements to bring the electrical cable via the connector and in particular its connector elements with a mating connector in electrical connection to be able to. In the present case, these are in particular a plug connector in which essential components are accommodated in a tubular outer conductor and to which a drain wire of the associated electrical cable is fed.
The technical background of the invention is exemplified in the WO 2005/069445 A1 referenced, which shows the basic structure of a connector of the relevant type here, but without going into the Beilauflitzen. These form additional lines, which separated from the signal-carrying electrical lines and must be defined defined on the connector.

DE 10 2015 003935 B3 discloses an electrical connector according to the preamble of claim 1. The invention is based on the problem to improve an electrical connector of the type mentioned in view of the above requirements.
This problem is inventively solved by the provision of an electrical connector with the features of claim 1.
Thereafter, it is further provided in a generic electrical connector that the outer conductor at least one slot, referred to herein as a "second slot", which extends along the longitudinal direction of the outer conductor, and that received a respective Beilauflitze on the outer conductor in a respective associated second slot is.
In this case, the respective auxiliary strand can be fixed to the outer conductor (eg, materially bonded), in particular to the associated second slot of the outer conductor.
The solution according to the invention allows easy mounting and reliable fixation of the Beilauflitzen on the connector.
The respective Belauflitze may contain a magnetic, in particular a ferromagnetic material for simplified separation.

It can further be provided that the respective extension cord has a connector-side end portion with which it is received in the associated second slot. In addition, a respective Beilauflitze close the associated second slot.

According to one embodiment, two Beilauflitzen go from the electrical cable and on the outer conductor two second slots are formed, in each of which a Beilauflitze is added.

By extending a respective second slot of the outer conductor to the cable-side end of the outer conductor and is open there, the associated Beilauflitze can be easily inserted into the second slot. Furthermore, a respective second slot of the outer conductor may be formed closed on an end portion remote from the cable-side end of the outer conductor.

In the respective second slot of the outer conductor, a support can be formed on an end section facing away from the cable-side end of the outer conductor, against which the associated auxiliary extension strand rests. In this case, the respective Beilauflitze be fixed to the support of the associated outer conductor (cohesively).

According to one embodiment, the enclosed space enclosed by the outer conductor is filled with a potting compound. In this case, a respective Beilauflitze be performed in an associated channel formed in the potting compound.

Between the cable-side contact elements and the output-side contact elements of the connector, a carrier body may be arranged, with which the cable-side contact elements and the output-side contact elements are in each case connected, e.g. directly or indirectly via an electrical component arranged on the carrier body.

It can be provided that the carrier body forms a carrier region, which extends from a first connecting portion to a second connecting portion and with which the cable-side contact elements and the output-side contact elements are respectively in communication, and that of the carrier region at each of the two connecting portions each one Supporting portion of the support body such that the support area and the two support portions form an annular circumferential structure.

Further details and advantages of the invention will become apparent in the following description of exemplary embodiments with reference to the figures.

Figur 1A

einen elektrischen Steckverbinder für ein mehradriges elektrisches Kabel mit einem eingangsseitig angeordneten Trägerkörper für ein elektrisches Bauelement, jedoch ohne den zugehörigen Außenleiter und teilweise durchscheinend dargestellt;

Figur 1B

den elektrischen Steckverbinder aus Figur 1A zusammen mit dem zugehörigen Außenleiter;

Figur 2A

einen Querschnitt durch das an den Steckverbinder aus Figur 1A angeschlossene elektrische Kabel;

Figur 2B

eine schematische Darstellung eines Kabelschirms des elektrischen Kabels;

Figur 3A

eine Stanzgitteranordnung mit einer Mehrzahl Stanzgittern, aus denen jeweils Komponenten des Steckverbinders gemäß Figur 1A, darunter dessen Trägerkörper, durch Separieren gebildet sind;

Figur 3B

den Steckverbinder aus Figur 1A vor dem Konfigurieren des Trägerkörpers;

Fig. 3C

einen Ausschnitt der Anordnung aus Figur 3A, insbesondere hinsichtlich der Ausgestaltung des Trägerkörpers, zusammen mit einem hierauf anzuordnenden elektrischen Bauelement, nach einem Vereinzeln zu separierender Komponenten der Anordnung;

Figur 4A

eine erste Konkretisierung des Steckverbinders aus Figur 1A, insbesondere hinsichtlich des elektrischen Bauelementes;

Figur 4B

eine zweite Konkretisierung des Steckverbinders aus Figur 1A, insbesondere hinsichtlich des elektrischen Bauelementes;

Figur 5A

einen Längsschnitt durch den Steckverbinder gemäß den Figuren 1A und 1B;

Figur 5B

einen Querschnitt durch den Steckverbinder gemäß den Figuren 1A und 1B;

Figur 6A

eine Explosionsdarstellung der Anordnung aus Figur 1A und 1B vor dem Umbiegen von Stützabschnitten des Trägerkörpers;

Figur 6B

die Explosionsdarstellung gemäß Figur 6A nach dem Umbiegen der Stützabschnitte.

Show it:

Figure 1A

an electrical connector for a multi-core electrical cable with an input side arranged support body for an electrical component, but without the associated outer conductor and partially translucent shown;

FIG. 1B

the electrical connector Figure 1A together with the associated outer conductor;

FIG. 2A

a cross section through the to the connector Figure 1A connected electrical cables;

FIG. 2B

a schematic representation of a cable shield of the electric cable;

FIG. 3A

a punched grid arrangement with a plurality of punched grids, from each of which components of the connector according to Figure 1A , including the carrier body, are formed by separation;

FIG. 3B

the connector off Figure 1A before configuring the carrier body;

Fig. 3C

a section of the arrangement FIG. 3A , in particular with regard to the configuration of the carrier body, together with an electrical component to be arranged thereon, after a separation to be separated components of the arrangement;

FIG. 4A

a first concretization of the connector Figure 1A , in particular with regard to the electrical component;

FIG. 4B

a second concretization of the connector Figure 1A , in particular with regard to the electrical component;

FIG. 5A

a longitudinal section through the connector according to the Figures 1A and 1B ;

FIG. 5B

a cross section through the connector according to the Figures 1A and 1B ;

FIG. 6A

an exploded view of the arrangement Figure 1A and 1B before the bending of support sections of the carrier body;

FIG. 6B

the exploded view according to FIG. 6A after bending the support sections.

The figures Figure 1A and 1B show an electrical connector to the input side FIG. 2A shown in cross-section - multi-core electrical cable 1 is connected and the output side electrical connector elements 73, 74 for establishing an electrical connection with a mating connector. The electrical cable 1 is designed in the embodiment as a two-core electrical cable. The two wires 11, 12 of the cable 1 run along the cable longitudinal direction L side by side; they form parallel wires. These are each formed by an electrical line 11a, 12a, for example made of copper, as well as an insulating sheath 11b, 12b surrounding the respective line.

The wires 11, 12 of the cable 1 are arranged together in a cable jacket 15 which is defined by a cable jacket 15 running in the cable longitudinal direction L and is surrounded by the cable interior in a ring-shaped manner in cross-section. The cable sheath 15 consists of an electrically insulating material.

Between the serving for receiving the wires 11, 12 cable interior and the cable sheath 15 is still a (in the Figure 1A and 1B not visible) cable shield 14 is arranged. The cable shield 14 may for example be formed by a braided screen or by a film or by a screen braid in combination with a film. The cable shield 14 serves to shield the cable interior and consists for this purpose of a metallic material, such as aluminum. Thus, a cable shield 14 in the form of a foil may be an aluminum foil. Alternatively, a plastic film can be used for this purpose, which, in particular on the inside facing the cable interior, is coated with an electrically conductive material, such as aluminum.

Shield braids are used in particular for shielding at comparatively low frequencies and cable screens in the form of films for shielding at comparatively high frequencies (1 MHz to 10 GHz).

FIG. 2B schematically shows a possible concrete embodiment of a cable shield 14. Hereinafter, the cable shield 14 is wrapped in the form of a film around the cable inside, that the two connecting portions 141, 142 of the film overlap in the circumferential direction. In the overlap region resulting therefrom, the cable shield 14 can be selectively opened if - for example when assembling the cable - the cable interior is to be accessed.

The cable shield 14 may be combined with the cable jacket 15 to form a structural unit, e.g. in that the cable shield 14 is connected to the cable sheath 15 on its outer surface remote from the cable interior, for example via an adhesive.

In addition to the wires 11, 12 in the cable interior Beilauflitzen 21, 22 are arranged, each extending together with the wires 11, 12 along the cable longitudinal direction L. The Beilauflitzen 21, 22 are electrically conductive and not isolated, and they are in electrical contact with the cable shield 14. Such Beilauflitzen 21, 22 serve to define the cable shield 14 defined to ground potential, and advantageously even if the cable shield 14 is locally damaged, is torn in sections in the case of a film. Furthermore, the battens 21, 22 can additionally contribute to the shielding of the cable interior.

For assembling the cable FIG. 2A to the cable, as in the Figures 1A and 1B shown to be provided with an electrical connector 1, the battens 21, 22 had to be separated from the wires 11, 12 in order to be able to supply a respective cable component to the connector area provided for this purpose. To facilitate such assembly work, a respective Beilauflitze 21, 22 contain a magnetic, in particular a ferromagnetic material. This may be an alloy (based on iron, nickel, cobalt), in particular steel.

According to one variant, a respective fillet slit 21, 22 consists entirely of an electrically conductive ferromagnetic material. According to another variant, a respective Beilauflitze 21, 22 at least one consisting of a ferromagnetic material core, which is surrounded by an electrically conductive material. This embodiment makes it possible to optimize, on the one hand, the core of a respective fill-strands 21, 22 with regard to the magnetic properties and the optimization of the outer conductive region of a respective fill-strands 21, 22 with regard to the electrical properties (also with regard to the skin effect at high levels) frequencies). So can one respective Beilauflitze 21, 22 may be formed approximately by a core of steel, which is coated with copper. Coating can be done by electroplating, for example.

Both a respective core 11, 12 and a respective Beilauflitze 21, 22 of the electric cable 1 from the Figures 1A . 1B and 2A consists of a plurality of individual wires regularly.

For assembling the electric cable 1 from FIG. 2A , for example, this according to the Figures 1A and 1B To connect to an electrical connector, a (connector-side) connecting portion of the cable 1 is released from the cable sheath 15. Separating the battens 21, 22 from the wires 11, 12 of the cable, about those cable components 11, 12; 21, 22 separated from the respective associated connection points on the connector Figure 1A to be able to perform, takes place in the embodiment by the use of magnetic forces. As based on FIG. 2A recognizable, this is - after cutting the cable sheath 15 at the plug-side cable end - a respective Beilauflitze 21, 22 at the corresponding cable end a magnet M approximated. This generates a magnetic field F, which has the tendency to move the corresponding Beilauflitze 21, 22 - because of the ferromagnetic material contained therein - out of the cable interior, as with reference to the in Figure 1A shown configured state of the cable 1 is clear. As a result, the Beilauflitzen 21, 22 in a simple manner from the wires 11, 12 of the cable separate, without tools with the wires 11, 12 and / or Beilauflitzen 21, 22 would have to be handled.

It is decisive for the method described that a respective fillet slit 21, 22 contains a material with such magnetic properties that the slits 21, 22 can be separated from the strands 11, 12 of the cable 1 under the influence of magnetic forces. That is, the magnetic properties of the fillets 21, 22 must be different from those of a respective wire 11, 12.

By lifting a respective Beilauflitze 21, 22 from the cable interior under the action of magnetic forces can thereby a through a film of in FIG. 2B illustrated type cable shield 14 are opened automatically. Because it is only necessary for this that the ends 141, 142 of the cable shield 14 under the action of moving outward Beilauflitzen 21, 22 from each other.

At the plug-side end of the cable 1, a support crimp 16 is applied thereto, which (optionally) is surrounded by a potting 18, for example in the form of a ferrite-core-filter encapsulation can be. Such a cable-side (ferrite core) filter acts here as a jacket wave filter, in particular for the suppression of sheath waves in the form of high-frequency common mode noise, which are caused for example by electrical equipment and propagate along the cable 1. The filter thus serves to eliminate or reduce common-mode noise which occurs in phase at the two parallel wires 11, 12 or the electrical leads 11a, 12a and which are caused in particular by sheath waves in the present example.

The adjoining the plug-side end of the cable 1 connector comprises an outer conductor 8, in the embodiment in the form of an outer tube, which consists of an electrically conductive material and which surrounds the plug in cross-section annular or concrete in the exemplary embodiment annular. The outer conductor 8 extends along a longitudinal direction (cable longitudinal direction L), that is, axially, from a first, cable-side end 8a to a second, output-side end 8b. It may be connected to the support crimp 16, e.g. cohesively (by welding).

The outer conductor 8 has a pair of first slots 81 and a pair of second slots 82. The slots 81 and 82 of a respective pair of slots are arranged in the present case in each case opposite one another on the outer conductor 8. In addition, the slots 81 of the first pair of slots are arranged offset relative to slots 82 of the second pair of slots in the embodiment along the circumferential direction of the outer conductor 8 in each case by 90 °.

The slots 81 and 82 extend in the axial direction a of the connector (and thus along the cable longitudinal direction L) in each case up to the cable-side axial end of the outer conductor 8 (and form there an open end of the respective slot).

The inside of the enclosed by the outer conductor 8 interior of the connector components of the connector comprise the input side (ie, cable side) first, cable-side electrical contact elements 31, 32, in the present case in the form of contact pads. To each of these is integrally formed a connection point in the form of a receptacle 33, 34 for a (stripped) electrical line 11a and 12a of the wires 11, 12 of the electric cable 1. By fixing the electrical line 11a, 12a (core) of a respective core 11, 12 of the cable 1 in the respective associated receptacle 33, 34, there is an electrical contact with a respectively assigned cable-side via those (electrically conductive) receptacle 33 or 34 electrical contact element 31, 32nd

On the output side (and spaced from the cable-side contact elements 31, 32 in the axial direction a), the connector (in the space enclosed by the outer conductor 8 interior) second, output-side contact elements 71, 72, to each of which a male member 73 and 74, in this case Form of a plug pin, is formed, via which the connector is electrically connected to a mating connector. The plug elements 73, 74 are in the exemplary embodiment in the axial direction of a from the associated output-side contact element 71 and 72 from.

Between the cable-side contact elements 31, 32 and the output-side contact elements 71, 72 (and spaced therefrom without contact), a carrier body 4 is arranged. The carrier body 4 carries an electrical component 5, for example in the form of an electrical filter element. The term "electrical component" should explicitly include electronic components and in particular semiconducting components; furthermore active electrical components as well as passive electrical components. In particular, the electrical component may be a passive electrical filter, such as e.g. a common mode choke (CMC filter).

The carrier body 4 serves for holding and positioning of the electrical component 5 within the connector. In contrast, the support body 4 does not serve the electrical connection of the component 5. That is, there is no electrical contact between the electrical component 5 and the support body 4. Also, the support body 4 no traces or other elements, via which the electrical component 5 electrical signals be added or removed. Nonetheless, the carrier body 4 can also be made of an electrically conductive material, in particular if the electrical component 5 is accommodated in an insulating housing. In this case, the electrical component 5 via its housing cohesively, e.g. by soldering, welding or gluing, be connected to the support body 4.

The electrical component 5 is electrically connected via bond wires 61, 62, 63, 64 on the one hand to the cable-side contact elements 31, 32 and on the other hand to the output-side contact elements 71, 72. This means that the wires 11, 12 of the electric cable 1 are each electrically connected via the electrical component 5 to the plug elements 73, 74 of the connector. Electrical signals, which are supplied to the connector via the wires 11, 12 of the cable 1, thus pass through the electrical component 5, before they via the connector elements 73, 74 to a mating connector and are thus output to a mating connector associated electrical assembly.

In particular, via the electrical component 5, the cable-side (input-side) contact elements 31, 32 on the one hand be electrically connected in pairs to the output-side contact elements 71, 72 on the other hand. That is, each of the cable-side contact elements 31, 32 is connected via the electrical component 5 with exactly one of the output-side contact elements 71, 72, as described below with reference to FIG FIGS. 4A and 4B will be explained in more detail. With an electrical component 5 designed as a common-mode filter, common-mode interference can be eliminated or reduced with such a configuration, which occur at the two parallel cores 11, 12 or the electrical leads 11a, 12a (simultaneously).

The support body 4 is in the present case designed as a support bracket. For receiving the electrical component of FIG. 5, the carrier body 4 has a (planar) carrier region 40 which extends (rectilinearly) between a first connecting section 41 and a second connecting section 42. The orientation of the carrier region 40 is in the embodiment transverse to the axial direction a of the connector. On the support portion 40 of the support body 4, the electrical component 5 is placed.

Of the connecting portions 41, 42 on the support portion 40 of the support body 4 is in each case a support portion 43 and 44 of the support body 4 from. This runs curved (arcuate) in the circumferential direction along the outer conductor 8. The two support portions 43, 44 of the support body 4 together with the support portion 40 an annular contour. In the exemplary embodiment (in the manner of a secant), the carrier region 40 of the carrier body 4 runs in a straight line and transversely to the axial direction a between opposite points of the outer conductor 8.

In the region of the first and second connecting section 41, 42 of the carrier region 40, the carrier body 4 in each case penetrates one of the first slots 81 of the outer conductor 8 in the radial direction. That is, the support portion 40 of the support body 4 is located substantially in the interior of the space surrounded by the outer conductor 8, so that in particular the patch on the support body 4 electrical component 5 is also disposed in that interior. In the region of its connecting sections 41, 42, however, the carrier body 4 is led out radially (each through one of the first slots 81) out of the interior of the outer conductor 8.

The outgoing of the connecting portions 41, 42 support portions 43, 44 of the support body 4 accordingly extend outside the space enclosed by the outer conductor 8 space. In the exemplary embodiment, the support sections 43, 44 each extend arcuately in the circumferential direction along the outer wall of the outer conductor 8. Together, the two support sections 43, 44 surround the outer conductor 8 in the circumferential direction over an angle of approximately 180 °.

The support sections 43, 44 of the carrier body 4 each have a free end 43a, 44a, which faces away from the connecting section 41 or 42, on which the respective support section 43 or 44 leaves the carrier region 40 of the carrier body 4. The free ends 43a, 44a of the support portions 43, 44 face each other and face each other to form, together with the support portion 40, the described annular contour. In the embodiment, the free ends 43a, 44a (slightly) spaced apart. In another embodiment, these may also rest against one another.

In the second slots 82 of the outer conductor 8, the Beilauflitzen 21, 22 departing from the electric cable 1 are arranged with their respective free end portion 21a and 22a, so that the second slots 82 are partially closed by the Beilauflitzen 21, 22. Beilauflitzen 21, 22 may be cohesively, within the respective second slot 82, for example, by soldering or welding, set. Further details will be given below on the basis of Figures 5A and 5B be explained.

The space between the outer conductor 8 and the components 31-34, 4, 40, 5, 61-64 and 71-74 of the connector disposed therein is partially covered by a potting compound 85 (e.g. in the form of an injection molded part, filled. In the present case, this lies on the inner side of the outer conductor 8 facing the plug interior and, together with the outer conductor 8, surrounds the said components 31-34, 4, 40, 5, 61-64 and 71-74 of the plug connector. The potting 85 has channels 86 in which the free end portions 21a, 22a of the Beilauflitzen 21, 22 are received and guided.

In addition to the functions already described as a holder for the electrical component 5, the carrier body 4 - as a (multi) function bracket - on the connector still receive a plurality of other functions.

Thus, the carrier body 4 in the present case serves as a positioning means for positioning the outer conductor 8 on the connector. The positioning of the outer conductor 8 relative to the carrier body 4 takes place concretely in such a way that the outer conductor 8 with his on the cable side (that is to say at the respective end 81a facing the electrical cable 1), first slots 81 are pushed over the carrier body 4, more precisely via the connecting sections 41, 42 of the carrier body 4, until the closed end 81b of the respective slot 81 opposite the open cable-side end 81a engages with the carrier body 4, as in FIG. 1B shown. That is, the closed ends 81b of the slots 81 serve as stops for positioning the outer conductor 8 on the carrier body 4 (along the cable longitudinal direction L).

At the same time, the outer conductor 8 (as a result of the first slots 81) is arranged in a form-fitting manner on the carrier body 4. The outer conductor 8 can also be cohesively, e.g. by welding, be connected to the support body 4.

At its open, cable-side end 81 a, a respective first slot 81 of the outer conductor 8 may be provided with an insertion phase in order to avoid damaging the outer conductor 8 when pushed onto the carrier body 4.

According to one embodiment of the invention, the support body 4 each have axially extending extensions 46, which cover the first slots 81 (sections), see. FIG. 1B when the carrier body 4 and the outer conductor 8 are aligned and positioned as intended. Such extensions 46 can also serve as guide means for guiding the outer conductor 8 when pushed onto the carrier body 4. Furthermore, the extensions can act as an EMC labyrinth, so not only reduce the free line of sight, but also counteract the penetration of electromagnetic waves in the space inside the outer conductor 8.

Other functions of the support body 4 are in the embodiment in the tension and pressure relief of the arranged in the interior of the outer conductor 8 components 31-34, 4, 40, 5, 71-74 of the connector in the action of forces / torques on the outer conductor 8 and in the Pull and pressure relief of the Beilauflitzen 21, 22, in particular under the action of torsional forces (along the circumferential direction of the outer conductor 8). This makes it possible to prevent shearing of the auxiliary slits 21, 22.

On the support body 4, a coding housing can also be positioned and locked. Furthermore, for AC decoupling (by means of a capacitor) between the carrier body 4 and the contact elements 31, 32; 71, 72 a capacitor can be arranged.

FIG. 3A shows stamped grid from which the arranged within the outer conductor 8 components 31-34, 4 and 71-73 of the connector, so the cable-side electrical contact elements 31, 32 with the associated receptacles 33, 34, the support body 4 with its support portion 40 and the output side electrical contact elements 71, 72 with the associated connector elements 73, 74 may be made. It can, as in FIG. 3A also shown, a plurality of such punched grids are provided as endless goods "on tape".

In the in FIG. 3A shown state, the support body 4 has not yet been brought into the ring or bow shape, which he according to the Figures 1A and 1B should have. Rather, it is after FIG. 3A that material region from which finally the bow-shaped support body 4 is formed, just extends executed.

For the installation of integrated into the punched grid components 31-34, 4 and 71-74 in the connector whose outer conductor 8 on the laterally projecting wings of the support body 4 (ie, the later connecting and supporting portions 41, 43, 42, 44) are pushed , compare FIG. 3B ,

When the carrier body 4 and the outer conductor 8 are positioned as intended to each other by the outer conductor 8 rests with the acting as a stop closed ends 81 b of its first slots 81 on the support body 4, as in FIG. 3B then the final configuration of the components integrated into the punched grid takes place. Here, on the one hand, the support body 4 by bending in the in the Figures 1A and 1B shown transferred state in which the support portions 43, 44 along the outer circumference of the outer conductor 8 extend.

Furthermore, the components of the stamped grid are separated (for example by provided on the outer conductor 8 mounting window through), so that a total of five separate elements are present, namely two separate and spaced cable-side connecting elements 31, 32 each with an integrally molded thereon receptacle 33 and 34 and two separate and spaced-apart output-side electrical connection elements 71, 72, each with an integrally molded thereon plug member 73 and 74, wherein the latter connection elements 71, 72 are also separated from the first-mentioned connection elements 31, 32 and (axially) spaced. As the fifth element, which is separated and spaced in the embodiment of all electrical connection elements 31, 32, 41, 42, and then is still the carrier body 4 before.

The singling of the said components 30-34, 4, 71-74 can take place, for example, by means of severing those components on the stamped grid of connecting webs which are still initially connected.

The corresponding separated components of the lead frame 30-34, 4, 71-74 are in FIG. 3C together with the electrical component 5 to be fastened to the carrier body 4 and the associated bonding wires 61-64 and the potting 85, of which the carrier body 4 together with the electrical component 5 and the connecting elements 31, 32; 71, 72 is enclosed in the connector.

The FIGS. 4A and 4B show two exemplary embodiments of the electrical connector from the Figures 1A and 1B , in terms of the design of the electrical component 5. In the FIGS. 4A and 4B For this purpose, the housing 50 of the electrical component 5 is shown translucent, so that the arranged within the respective housing 50 components of the electrical component 5 can be seen.

In the FIG. 4A on the one hand and FIG. 4B On the other hand, electrical components illustrated on the other hand agree that the respective component has a ring-shaped (formed of a magnetic material) core 51 and 53, to the respective at least one winding 52a, 52b and 54a, 54b (made of an electrically conductive material / Wire) is wound.

According to the embodiment of the FIG. 4A the annular core 51 is polygonal, in the exemplary embodiment concrete rectangular, executed and has two windings 52a, 52b. These are arranged on opposite limbs of the annular core 51. From each of the two windings 52a, 52b respectively go from bonding wires 61, 63 and 62, 64, via each of which a cable-side electrical contact element 31 or 32 with an output-side contact element 71 and 72 is electrically connected. In other words, in each case one of the windings 52a, 52b of the electrical component 5 is connected between each of the cable-side contact elements 31, 32 and the associated output-side contact element 71 or 72.

This arrangement of the windings of the electrical component 5 between the cable-side and output-side contact elements 31, 32; 71, 72, such that in each case a pair of contact elements 31, 71 and 32, 72 are electrically connected to each other, applies in the same way for the embodiment of FIG. 4B ,

According to the embodiment of the FIG. 4B the annular core 53 of the electrical component 5 is arcuate or concretely circular in shape; So he has no corners. Accordingly, the two windings for 54a, 54b each run along an arcuately curved section of the core 53.
The advantages of the polygonal design of the electrical component 5 are in particular in a simple processability with a view to conveyability and positioning and in a simple fixability on the support body 4. The advantages of the annular shape of the electrical component 5 are particularly in its highly symmetrical structure and in enabling large winding lengths.

The Figures 5A and 5B show a longitudinal section ( FIG. 5A ) and a cross section ( FIG. 5B ) through the electrical connector from the Figures 1A and 1B , In this way, in particular the arrangement of axially extended extensions 46 of the carrier body 4 in the first slots 81 of the outer conductor 8 on the one hand and the arrangement of Beilauflitzen 21, 22 in the second slots 82 of the outer conductor 8 on the other hand illustrated by drawing.

Especially based FIG. 5B In addition, it is shown how torsional forces T1 acting on the outer conductor 8 or on the potting 85 are introduced into the carrier body 4, which in the cross-sectional representation of FIG FIG. 5B is exemplified by the extensions 46. Furthermore, it is shown how torsional forces T2 acting on the follower slits 21, 22 are introduced into the outer conductor 8 (from which they can in turn be discharged into the carrier body 4). As a result, a pressure and strain relief of the Beilauflitzen 21, 22 can be achieved under the action of torsional forces, which in particular prevents shearing the Beilauflitzen.

Furthermore, the point of view already described above is clarified again, according to which the carrier body 4, here represented in particular by the axially extended lateral extensions 46 (in two spatial planes), can serve as guide aid for sliding and positioning the outer conductor 8.

Similarly, it is clear how, by the covering of the first slots 81 of the outer conductor 8 by means of the extensions 46 of the support body 4, in particular because of the flared configuration of the (in cross-section mushroom-shaped) extensions 46, an EMC labyrinth is formed to the penetration of electromagnetic waves in to prevent the space surrounded by the outer conductor 8 space.

Specifically in FIG. 5A are also those locations of the second slots 82, namely in the embodiment end portions 82a in the form of beveled areas, recognizable, in the vicinity of a respective Beilauflitze 21, 22 (with their respective free end portion 21a, 22a) is fixed to the outer conductor 8, for example, materially by welding, soldering, gluing, etc., on a support (plateau 82b) formed by the respective end portion 82a. This further ensures that the ground connection of the cable shield on the battens 21, 22 to the outer conductor 8 remains stable over time and in particular the contact resistance is constant in time. The tapered end portions 82a and the pads 82b formed thereby continue to serve to transmit torsional forces. In addition, the beveled end portions 82a and the pads 82b form additional guide aids when sliding the outer conductor 8 on the potting 85th

FIG. 6A shows an exploded view of the electrical connector from the Figures 1A and 1B together with the cable side immediately adjoining components, and that before the bending of the support portions 43, 44 of the support body. 4

Cable side is in FIG. 6 the electrical cable 1 with the wires 11, 12 and their respective core (electrical line 11a and 12a) and with the Beilauflitzen 21, 22 and with the cable sheath 15 shown. The electrical connector facing the end of the electric cable 1 is provided with the already described Stützcrimp 16, on which in turn a potting 18 is applied.

The carrier body 4 is formed as described with reference to FIG Figures 1A and 1B described. It forms an inner core of the electrical connector, on which the electrical component 5 (with its housing 50) is arranged, wherein it is connected to the input and output-side electrical contact elements 31, 32; 71, 72 via wires 61, 62, 63, 64 is connected.

Externally, the connector of the outer conductor 8 is surrounded with the first and second slots 81 and 82, wherein the space between the support body 4 - with the exception of outwardly guided support portions 43, 44 - and the outer conductor 8 is filled by a potting 85.

Starting from the exploded view of the FIG. 6A the assembly of the connector, including the connection of the electric cable 1, can be described as follows:
First, the electrical cable 1 is provided and provided with the Stützcrimp 16 at its free end, to which it is to be connected to the associated electrical connector. At the electrical cable 1 are already Beilauflitzen 21, 22 have been separated, as based on the FIGS. 2A and 2B described.

Subsequently, the stamped grid is provided, from which the carrier body 4 and the cable-side and output-side contact elements 31, 32; 71, 72 together with the other associated components 33, 34; 73, 74 are formed. The stripped free ends of the wires 11, 12 of the electric cable 1, at each of which the associated core in the form of an electrical line 11a, 12a exposed, are each with a cable-side contact element 31, 32 via the receptacle 33, 34 in contact or in Intervention brought. An additional connection is preferably cohesively on the respective contact or engagement region, for example by soldering or welding. Further, the electrical component 5 is arranged on the carrier body 4 and fixed there (materially) and via the wires 61, 62, 63, 64 with the cable-side and output-side contact elements 31, 32; 71, 72 electrically connected.

The components defining the interior of the electrical connector, namely the carrier body 4 and the contact elements 31, 32; 71, 72 with the other associated components 33, 34; 73, 74 and arranged on the support body 4 electrical component 5 including the associated wires are then provided by encapsulation with the insulating potting 85 to form the channels 86.

Now, the outer conductor 8 is pushed (by means of the first slots 81) over the aforementioned components of the electrical connector, wherein the outer conductor 8 is guided by the carrier body 4, as above based FIG. 3A explained. Then the Beilauflitzen 21, 22 with their free end portions 21a, 22a, compare Figures 5A and 5B , Introduced into the provided second slots 82 of the outer conductor 8 and there cohesively, for example by soldering, welding or gluing, set. And there are the support portions 43, 44 of the support body 4 to form the annular configuration of the Figures 1A and 1B bent over, as in FIG. 6B shown, and optionally also cohesively, for example by welding, fixed to the outer conductor 8.

Finally, the transition between the electrical cable 1 and the connector is provided with the encapsulation 18, which encloses in particular the support crimp 16.

Claims (15)

1. Electrical plug-in connector for a multicore electric cable, comprising

   - at least two cable-side electrical contact elements (31, 32) with associated connection points (33, 34) to which in each case one core (11, 12) of the electric cable (1) is connected,

   - at least two output-side electrical contact elements (71, 72), from each of which an electrical plug element (73, 74) protrudes, it being possible for an electrical connection to a mating plug to be established by means of said electrical plug element,

   - a tubular external conductor (8) which extends along a longitudinal direction (L) from a cable-side end (8a) to an output-side end (8b) and which encloses the cable-side and also the output-side contact elements (31, 32; 71, 72), and

   - at least one stranded drain wire (21, 22) of the electric cable (1), which stranded drain wire makes contact with a shield (14) of the cable (1) and which stranded drain wire is guided to the plug-in connector separately from the cores (11, 12) of the cable (1),

   characterized
   in that the external conductor (8) has at least one second slot (82) which runs along the longitudinal direction (L) of the external conductor (8), and in that a respective stranded drain wire (21, 22) is held on the external conductor (8) in a respectively associated second slot (82) .
2. Electrical plug-in connector according to Claim 1, characterized in that the respective stranded drain wire (21, 22) has a plug-in connector-side end section (21a, 22a) by way of which it is held in the associated second slot (82).
3. Electrical plug-in connector according to Claim 1 or 2, characterized in that the respective stranded drain wire (21, 22) closes the associated second slot (82).
4. Electrical plug-in connector according to Claim 1, characterized in that two stranded drain wires (21, 22) originate from the electric cable (1), and in that two second slots (82) are formed on the external conductor (8), a stranded drain wire (21, 22) being held in each of the said second slots.
5. Electrical plug-in connector according to one of the preceding claims, characterized in that the respective second slot (82) of the external conductor (8) extends as far as the cable-side end of the external conductor (8) and is open there, in order to be able to insert the associated stranded drain wire (21, 22) into the second slot (82).
6. Electrical plug-in connector according to one of the preceding claims, characterized in that the respective second slot (82) of the external conductor (8) is closed at an end section (82a) which is averted from the cable-side end (8a) of the external conductor (8).
7. Electrical plug-in connector according to one of the preceding claims, characterized in that a support (82b) is formed in the respective second slot (82) of the external conductor (8) at an end section (82a) which is averted from the cable-side end (8a) of the external conductor (8), an end section (21a, 22a) of the associated stranded drain wire (21, 22) bearing on the said support.
8. Electrical plug-in connector according to one of the preceding claims, characterized in that the respective stranded drain wire (21, 22) is fixed to the external conductor (8).
9. Electrical plug-in connector according to one of the preceding claims, characterized in that the respective stranded drain wire (21, 22) is fixed to the external conductor (8) in a materially bonded manner.
10. Electrical plug-in connector according to one of the preceding claims, characterized in that the respective stranded drain wire (21, 22) is fixed to the associated second slot (82) of the external conductor (8).
11. Electrical plug-in connector according to Claims 7 and 10, characterized in that the respective stranded drain wire (21, 22), by way of its end section (21a, 22a), is fixed to the support (82b) of the associated external conductor (8).
12. Electrical plug-in connector according to one of the preceding claims, characterized in that the interior space which is enclosed by the external conductor (8) is filled with a potting compound (85).
13. Electrical plug-in connector according to Claim 12, characterized in that the respective stranded drain wire (21, 22) is guided in a duct (86) which is formed in the potting compound (85).
14. Electrical plug-in connector according to one of the preceding claims, characterized in that a carrier body (4) is arranged between the cable-side contact elements (31, 32) and the output-side contact elements (71, 72), the cable-side contact elements (31, 32) and the output-side contact elements (71, 72) each being connected to the said carrier body.
15. Electrical plug-in connector according to Claim 14, characterized in that the carrier body (4) forms a carrier region (40) which extends from a first connecting section (41) to a second connecting section (42) and to which carrier region the cable-side contact elements (31, 32) and the output-side contact elements (71, 72) are each connected, and in that in each case a supporting section (43, 44) of the carrier body (4) originates from the carrier region (40) on each of the two connecting sections (41, 42) in such a way that the carrier region (40) and the two supporting sections (43, 44) form an annularly encircling structure.

Images