EP2417673A2

EP2417673A2 - Electrical plug-in connector and electrical plug-in connection

Info

Publication number: EP2417673A2
Application number: EP10715676A
Authority: EP
Inventors: Valeri Reimchen
Original assignee: Phoenix Contact GmbH and Co KG
Current assignee: Phoenix Contact GmbH and Co KG
Priority date: 2009-04-09
Filing date: 2010-03-22
Publication date: 2012-02-15
Anticipated expiration: 2030-03-22
Also published as: DE102009021594A1; CN102460843B; US8591268B2; WO2010115514A2; DE102009021594B4; EP2417673B1; US20120034809A1; WO2010115514A3; CN102460843A

Abstract

The invention illustrates and describes an electrical plug-in connector for the detachable connection of a multicore cable to a mating plug-in connector (2), having a grip body (4) surrounding the cable and the cores (3) of the cable, having a contact carrier (6) receiving and holding a plurality of contact elements (5), and having a rotatably arranged sleeve-like threaded part (7), the individual contact elements (5) being electrically conductively connected to the individual cores (2), and its being possible for the sleeve-like threaded part (7) to be screwed to a corresponding sleeve-like threaded part (9) of the mating plug-in connector (2). In the electrical plug-in connector according to the invention, the assembly of the plug-in connector, in particular of the contact elements (5), is particularly simply possible in that, in the contact carrier (6), a number is formed, corresponding to the number of contact elements (5), of outwardly open grooves (11) running parallel to the longitudinal axis of the contact carrier (6), and in that, in the front end (12) of the contact carrier (6) facing the mating plug-in connector (2), adjacent to the grooves (11), a number is formed corresponding to the number of grooves (11) of passage holes (13), through which the ends (14) of the contact elements (5) that face the cores (3) project in the longitudinal direction of the contact elements (5) when assembled.

Description

Electrical connector and electrical connector

The invention relates to an electrical connector for releasably connecting a multi-core cable with a mating connector, with a handle body surrounding the cable or the wires of the cable, with a contact carrier receiving and holding a plurality of contact elements and with a rotatably arranged sleeve-shaped threaded part, wherein the individual contact elements are electrically conductively connected to the individual wires and wherein the sleeve-shaped threaded part with a corresponding sleeve-shaped threaded portion of the mating connector is screwed.

In addition, the invention also relates to an electrical plug connection with a plug connector and a mating connector, wherein the plug connector has a cap screw as a sleeve-shaped threaded part and the mating plug connector an outer sleeve with an external thread of the cap screw of the connector corresponding female thread and a plurality of mating contact elements receiving or having holding mating contact carrier. Finally, the invention also relates to a method for connecting the wires of a multi-core cable to an electrical connector.

Electrical connectors consist essentially of two parts, the electrical connector and the mating connector. Both the connector and the mating connector each have a contact carrier with a plurality of contacts, which are either contact pins or corresponding contact sockets. Depending on whether the contact pins or the contact sockets are arranged in the respective contact carrier, the associated connecting part is also referred to as a plug or socket. In practice, it is usually the case that the connector whose contact carrier has the contact pins, d. H. the plug, a cap screw with an external thread as a sleeve-shaped threaded portion and the connector in the contact carrier, the contact sockets are arranged, d. H. the socket, an outer sleeve having an internal thread. If two cables are connected to one another with the plug connection, then the outer sleeve of the bushing is designed as a kind of union nut.

CONFIRMATION SKOPJE Such electrical connectors or connectors are used as industrial plugs in automation technology both in cabinets and field devices in different embodiments. The types M8 and Ml 2 with 4, 5, 6 or even 8 contacts have found widespread use. The connectors are used to connect connection cables with a corresponding number of cores, whereby the individual cores each consist of a conductor and a core insulation surrounding the conductor and are jointly surrounded by a cable insulation. Instead of a solid conductor, the wires can also have multiple strands, which follow - without limitation thereto - always only ladders is mentioned; this should therefore always include strands.

Electrical connectors can be either ready to assemble or ready wired, in which case the contact carrier and the cable are usually encapsulated by the handle body. In this case, the handle body itself can be produced by overmolding the contact carrier.

In the case of a connector which can not be freely assembled by the consumer, the electrical and mechanical connection of the individual wires or conductors of a cable to the individual contact elements takes place in particular by means of a solder connection or by a crimp connection. In the crimp termination technique, the stripped end of a wire is inserted axially into a corresponding ferrule (crimp barrel) or sleeve-shaped end portion of the contact element and then mechanically and mechanically crimped to the crimp barrel or contact element by mechanical compression of the crimp barrel or sleeve-shaped end portion connected. The crimping standardized in DIN EN 60352-2 results in a solderless electrical connection, whereby the crimped connection can be produced both by hand crimping tools and by means of semi or fully automatic crimping machines. The stripping of the wires and the crimping of the contact elements can be carried out by machine in a single operation, so that the crimping technique has largely superseded soldering into the background.

Electrical connectors are interfaces that transmit electrical signals or power, the connectors or connectors must meet different requirements depending on the application. In the case of connectors used in signal and data technology, in particular in the case of connectors which are used within networks and fieldbuses, In accordance with the data transmission rate of the respective network or field bus, certain high-frequency boundary conditions must be taken into account in order to ensure a faultless transmission of the signals and data.

If connectors or plug-in connections for signal and data technology are used not only in office buildings but also in harsh industrial environments, the plug connectors or plug connections must be correspondingly more robust and have the highest possible degree of protection, preferably IP67. For this reason, commercially available RJ45 plugs, as known from the office communication sector, can only be used to a limited extent in the industrial sector. Therefore, protective housing, so-called Tüllengehäuse, have been developed that can accommodate an already connected to a cable RJ45 plug and thereby protect the plug against external influences and damage. A corresponding protective housing is known, for example, from DE 100 31 341 C2.

In order to be able to use the Ml 2 connectors, which are widely used in the industrial sector, which have sufficient mechanical robustness and protection class, also in the area of signal and data technology, in particular in networks and field buses - and in particular also for Ethernet applications. their internal structure must be modified so that the requirements for data transmission can be met. In particular, at higher transmission rates while connectors with a larger number of contacts, especially with eight contacts required. Increases the number of contacts, it leads - with otherwise constant diameter of the connector - due to the small dimensions to a more complex installation of the connector and a more complex connection of the individual wires to the individual contact elements.

The present invention is therefore based on the object of further developing an initially beschri electrical connector to the effect that the assembly of the connector, in particular the mounting of the contact elements in the contact carrier is easier. In addition, the invention has for its object to provide an electrical connector that is particularly well suited for the signal and data transmission in the harsh industrial environment with the most compact possible structure. - A -

The aforementioned object is achieved in the electrical connector described above in that in the contact carrier a number of contact elements corresponding number of outwardly open, parallel to the longitudinal axis of the contact carrier extending grooves is formed, and that in the mating connector facing end side of the contact carrier, adjacent to the grooves, a number of grooves corresponding number of through holes is formed, through which protrude the ends of the contact elements remote in the assembled state in the longitudinal direction of the contact elements.

The inventive design of the contact carrier, the insertion of the contact elements in the contact carrier is much easier. By forming the outwardly open grooves instead of the otherwise formed in contact carriers, extending over the entire length of the contact carrier through holes, a contact element with its end facing away from the connected conductor can be simply inserted through the through hole in the end face of the contact carrier, wherein the contact element when passing through the through hole may have an angle to the longitudinal axis of the contact carrier greater than zero. The free end of the contact element can thus be pushed "obliquely from the side" through the through hole and only then be pivoted into the corresponding groove.

This procedure simplifies the insertion of the already connected to the wires contact elements in the contact carrier considerably. On the one hand, the free ends of the contact elements need only be pushed through the through holes formed in the end face of the contact carrier, the length of which is substantially less than the total length of the contact carrier. On the other hand, the possibility of inserting the contact elements "obliquely from the side" facilitates the assembly of a plurality of contact elements in a compact connector.

According to an advantageous embodiment of the invention, the through holes are funnel-shaped in the end face of the contact carrier, wherein the inner diameter of the through holes increases from the side facing the grooves to the mating connector facing side. The funnel-shaped design of the through holes facilitates the oblique position of the contact elements when inserted into the through holes. The insertion and pivoting of the contact elements is further facilitated if the funnel shape of the through holes is aligned concentrically with the preferred insertion direction of the contact elements. In addition, the through holes may be formed so that at their narrowest point have a slightly larger diameter than the ends of the contact elements durchzusteckenden.

The individual contact elements are guided in the electrical connector according to the invention only in a relatively small portion of their total length in a through hole, while the free end protrudes from the through hole and the wires facing the end is arranged in the mounted state in the outwardly open groove. As a result, the axial alignment of the contact elements is less well secured than in conventional contact carriers, in which the length of the through holes corresponds to the length of the contact carrier. In order to better ensure the axial alignment of the contact elements in the contact carrier, it is therefore preferably provided that the through holes are each surrounded by a collar on the end face of the contact carrier facing the mating connector. Thus, the collar does not interfere with the insertion of the free end of a contact element "obliquely from the side", the collar on the side facing the central axis of the connector side each have an interruption.

In order to better ensure the axial alignment of the contact elements in the contact carrier, and to prevent unwanted swinging out of the contact elements from the grooves, a constriction is preferably formed in the individual grooves, in which the contact elements can engage in the grooves during pivoting. If the contact elements have a section with an enlarged diameter corresponding to the grooves, for example a hollow end facing the wires, then a latching between the constriction formed in the grooves and the section with increased diameter can be realized in a simple manner.

The above-described embodiment of the contact carrier according to the invention can in principle be used in all circular connectors. However, the inventive design of the contact carrier is particularly advantageous in such connectors, which have a larger number of contact elements, in particular for connectors that are used to connect cables with four wire pairs and thus have eight contact elements. In such a connector is provided according to a further advantageous embodiment of the invention hen that the contact carrier consists of four contact carrier parts, each having a quarter-circle base. If the connector is provided for connecting four pairs of wires, then two grooves are formed in each contact carrier part and two through holes are correspondingly formed in the end side of each contact carrier part facing the mating connector. The two wires of a pair of wires, which are preferably twisted together, are thus connected to two contact elements, which are arranged after assembly in a contact carrier part.

Serves the electrical connector for connecting a cable signal and data technology, in particular for connecting a cable in which the twisted wire pairs, with a metallic shield are surrounded (FTP = Foiled Twisted Pair or PiMF = pair in metal foil), so has the Electrical connector according to a further advantageous embodiment, in addition to a cylindrical sleeve se with extending in the longitudinal direction of the sleeve, disposed within the sleeve cross-shaped shielding element. The four contact carrier parts are then arranged inside the cylindrical sleeve such that the individual contact carrier parts are separated from one another by the arms of the cross-shaped shielding element. As a result, a crosstalk from one pair of wires to another pair of wires can be largely prevented, for which purpose the sleeve and the shielding element are preferably made of metal. For simplified installation of the electrical connector while the sleeve and the shielding element are preferably formed integrally.

According to a preferred embodiment, the cross-shaped shielding element protrudes on the side facing the cable out of the sleeve, so that the metallic shields of the individual twisted pairs of wires (PiMF) can be attached to the protruding end of the Schirmungselements, whereby the shield between the individual pairs of wires further improved thus further reducing the likelihood of crosstalk from one wire pair to another wire pair.

In order to further facilitate the positioning of the individual contact carrier parts within the sleeve, a stop for the contact carrier parts is preferably formed on the inner circumference of the sleeve. After inserting the contact elements in the individual contact carrier parts, these can thus be easily inserted into the chambers formed by the sleeve and the cross-shaped shielding element.

In the electrical connector described above consisting of a connector and a mating connector, wherein the connector comprises a cable surrounding a handle body, a plurality of contact elements receiving and holding contact carrier and a rotatably mounted cap screw with an external thread and the mating connector an outer sleeve with an external thread the screw corresponding inner thread and having a plurality of mating contact elements receiving or holding mating contact carrier, the suitability of the connector for the signal and data transmission, in particular for Ethernet applications is thereby improved in a simple manner that the mating contact elements of the mating connector a extending in the axial direction extending portion in which the outer diameter is reduced for impedance matching.

In order to be able to ensure error-free data transmission in the case of connectors, in particular those used in bus connections or networks with high data transmission rates, certain high-frequency boundary conditions must be taken into account. In addition to the lowest possible crosstalk between individual pairs of wires while reducing the return loss is of particular importance. The return loss is essentially determined by the homogeneity of the characteristic impedance. If an impedance discontinuity occurs in the direction of propagation of the electromagnetic wave, this leads to reflections which can overlap with the useful signals to be transmitted so that interferences can lead to the partial extinction of the useful signal to be transmitted.

Since in an electrical connector to be used in the industrial sector, in addition to the high-frequency boundary conditions other requirements, such as the highest possible protection class, sufficient compactness and high mechanical stability and ease of manufacture must be considered, it may happen that the contact elements of the connector in practice have a different differential longitudinal impedance than the mating contact elements of the mating connector. According to the invention, it has now been recognized that a difference between the differential longitudinal imple- Danz the contact elements of the connector and the differential longitudinal impedance of the mating contact elements of the mating connector can be largely reduced, that the mating contact elements have an axially extending portion in which the outer diameter - compared to the outer diameter in the other areas of the mating contact element - reduced is.

Thereby, an impedance matching of the mating contact elements to the contact elements is possible without other parameters of the connector, for example, the electrical conductivity of the contact elements and the mating contact elements or the decency of the contact elements and the mating contact elements to each other must be changed. Since the differential longitudinal impedance depends on the ratio of the diameter of a contact element or mating contact element to the center distance to adjacent contact elements or mating contact elements, the differential longitudinal impedance of the mating contact elements by changing the diameter of the mating contact elements can be adjusted so that the differential longitudinal impedance of the mating contact elements approximately a predetermined setpoint, for example, corresponds to 100 ohms.

According to an advantageous embodiment of the electrical connector, the mating contact elements facing the end of the contact elements pin-shaped and the contact elements facing the end of the mating contact elements is hollow, so that the pin-shaped ends of the contact elements can be inserted into the hollow ends of the mating contact elements. If the ends of the mating contact elements facing away from the contact elements are pin-shaped, the mating contact elements can simply be connected to a circuit board on the device side, for example by wave soldering.

To prevent crosstalk between individual wires or individual pairs of wires in the mating connector in the mating connector, the mating contact carrier of the mating connector according to a preferred embodiment of four mating contact carrier parts, each having a quarter-circle base, wherein in each mating contact carrier part at least one longitudinally extending bore is arranged to receive a mating contact element. In such an embodiment of the mating contact carrier, the four mating contact carrier parts are preferably connected by an inside of the outer sleeve ordered, extending in the longitudinal direction of the outer sleeve and the mating contact carrier extending cross-shaped shielding element against each other. The four contact carrier parts are preferably partially connected to each other at their outer periphery, so that the cross-shaped shielding element in the assembled state of the mating connector in corresponding grooves which are formed between the individual mating contact carrier parts, is arranged.

According to a further advantageous embodiment of the inventive electrical connector, in which both the mating connector and the connector has a cross-shaped shielding element, the individual arms of the cross-shaped shielding element of the connector on the mating connector side facing each extending in the longitudinal direction of the connector extension and the individual arms of the cross-shaped shielding element of the mating connector on the side facing the connector each have a corresponding counter-extension extending in the longitudinal direction of the mating connector. The extensions and the counter-extensions are arranged and formed so that they overlap in the axial direction when the connector and the mating connector are connected together. By the axial "overlapping" of the cross-shaped shielding element of the connector with the cross-shaped shielding element of the mating connector crosstalk from one pair of wires to another pair of wires over the entire length of the electrical connector is effectively suppressed.

In addition to the electrical connector described above and the electrical connector described above, the present invention also relates to a method for connecting the wires of a multi-core cable to an electrical connector, wherein the electrical Steckver-binder - as described above - a handle body, a contact carrier for Receiving a plurality of contact elements and a rotatably arranged sleeve-like threaded portion. The contact carrier of the connector has a number of contact elements corresponding number of outwardly open, parallel to the longitudinal axis of the contact carrier extending grooves and in the wires facing away from the end face of the contact carrier, adjacent to the grooves, a corresponding number of through holes. In the method, the connection of each stripped wire is characterized by the following steps: Connecting the individual stripped ends of the wires to the facing ends of the individual contact elements,

- Passing through the wires facing away from the ends of the contact elements through the through holes in the end face of the contact carrier, wherein the

When inserting contact elements have an angle to the longitudinal axis of the contact carrier greater than zero, and

- Swiveling the contact elements in the grooves in the contact carrier, so that the contact elements and with them the wires parallel to the longitudinal axis of the

Contact carrier lost.

Advantageously, the inventive method is in an electrical connector in which the wires facing the end of the contact elements is hollow, characterized by machine particularly easy to carry out that the individual stripped ends of the wires inserted into the hollow ends of the contact elements and by mechanical compression (crimping) the ends of the individual wires are electrically connected to the individual contact elements. For this purpose, a contact element inserted into the hollow end of the core can be inserted into the receptacle of a corresponding pressing jaw and then pressed together by depressing a counter-jaw, the contact element in the region of the inserted wire, whereby the stripped end of the wire is electrically and mechanically firmly connected to the contact element ,

If the individual contact elements with the wires thus connected electrically conductively inserted into the contact carrier or in individual contact carrier parts, the contact carrier or the contact carrier parts is preferably inserted into a cylindrical sleeve with a disposed within the sleeve, extending in the longitudinal direction of the sleeve cross-shaped shielding element. Thereafter, the sleeve-like threaded portion is pushed onto the sleeve and then encapsulated with the contact elements connected to the wires and the Kontakrträgerteil or the contact carrier parts for producing a handle body.

In particular, there are now a variety of ways to design and develop the electrical connector according to the invention or the erf Steckndungsgemäße electrical connector and the inventive method. Reference is made to both subordinate claims and to the subsequent claims. Description of a preferred embodiment in conjunction with the drawing. In the drawing show

1 is a perspective view of an inventive electrical connector see

2 shows the electrical connector of FIG. 1, in sectional view,

3 is a Exlosionsdarstellung of the essential components of the electrical connector of FIG. 1,

4 is an enlarged view of a portion of the connector, with wires connected,

Fig. 5 is an enlarged view of a contact carrier part of the electrical

connector,

6 shows two representations of a contact carrier part with two contact elements,

7 shows two sectional views of the contact carrier part according to FIG. 6,

8 is a perspective view of an electrical connector, consisting of a connector and a mating connector,

9 shows the electrical connector of FIG. 8, in sectional view,

10 is a perspective view of the mating connector of the electrical connector,

11 shows the mating connector according to FIG. 10, in a sectional view,

Fig. 12 is an exploded view of the essential components of the mating connector, and

Fig. 13 is an enlarged view of a mating contact element of the mating connector.

1 to 3 show an electrical connector 1 as part of an overall electrical connector shown in FIGS. 8 and 9, wherein the electrical Connector 1 for releasably connecting a cable with a mating connector 2 shown in Figs. 10 to 12 is used. The electrical connector 1 has a the cable or the - shown in Fig. 4 - 3 cores grip body 4, a total of eight contact elements 5 receiving and holding contact carrier 6 and a rotatably mounted cap screw 7 with an external thread 8. The electrical connector 1 can be connected to the mating connector 2, that the cap screw 7 with its external thread 8 in a mating connector 2 associated outer sleeve 9, which has a corresponding internal thread 10, is screwed.

As can be seen from Figs. 1 and 10, both the external thread 8 of the cap screw 7 and the internal thread 10 of the outer sleeve 9 are partially interrupted, i. Both the external thread 8 and the internal thread 10 have a plurality of thread-free areas provided in the direction of insertion or screwing-on. This makes it possible to first insert the cap screw 7 of the connector 1 in the outer sleeve 9 of the mating connector 2, wherein the cap screw 7 only has to be rotated by less than half a turn for secure attachment of connector 1 and mating connector 2. As a result, the time required to attach or detach the connector can be significantly reduced. A similar electrical plug-in connection, in which the external thread and the internal thread respectively have thread-free areas, is marketed by the applicant under the product name "SPEEDCON" (see the brochure "Industrial Plugs PLUSCON 2005", pages 58 and 59 of Phoenix Contact, Blomberg).

In the preferred embodiment of the electrical connector 1 according to the invention shown in the figures, the contact carrier 6 consists of four separate contact carrier parts 61, 62, 63, 64, each having a quarter-circle-shaped base. As can be seen in particular from FIGS. 5 to 7, two outwardly open grooves 11 extending parallel to the longitudinal axis of the connector 1 or of the contact carrier 6 are respectively formed in the individual contact carrier parts 61, 62, 63, 64. The grooves 11 serve to receive a portion of the contact elements 5. In addition, in the mating connector 2 facing end face 12 of the individual contact carrier parts 61, 62, 63, 64 each have two through holes 13 are formed, which are arranged in the end face 12 that they are directly adjacent to the grooves 11, so that the ends 14 of the contact elements 5 facing away from the cores 3 in the installed state extend through the through holes 13. project through. Since the electrical connector 1 shown in the figures has a total of eight contact elements 5, thus eight grooves 1 1 and eight through holes 13 are formed in the contact carrier 6 in total.

As can be seen in particular from the respective two illustrations in FIGS. 6 and 7, a contact element 5 can be mounted in the contact carrier 6 or a contact carrier part 61 in a particularly simple manner by the previously described design of the outwardly open grooves 11 and the through holes 13 in that initially the free, pin-shaped end 14 is greater than zero at an angle to the longitudinal axis of the contact carrier part 61, ie is slotted obliquely from the side through the through hole 13 (Fig. 6a and 7a). Only then is the contact element 5 aligned in the longitudinal direction of the contact carrier part 61 by the wires 3 facing the hollow end 15 of the contact element 5 is pivoted or pressed into the groove 11.

It is also apparent from FIGS. 5 to 7 that the through holes 13 on the side of the contact carrier 6 facing the mating connector 2 or of the individual contact carrier parts 61, 62, 63, 64 are surrounded by a collar 16, wherein the collar 16 has an interruption 17 on the side facing the center axis of the plug-in connector 1 side. In addition, in the grooves 11 in the region of the cores 3 facing hollow ends 15 of the contact elements 5, a constriction 18 is formed. This ensures that the contact elements 5 can not unintentionally swing out of the grooves 11 after swinging or pressing into the grooves 11 or fall out.

From the exploded view of the electrical connector 1 according to FIG. 3 it can be seen that the connector 1 additionally has a cylindrical sleeve 19 with a cross-shaped shielding element 20 formed inside the sleeve 19 and a shielding sleeve 21. The cylindrical sleeve 19 with the arranged therein, integrally connected to the sleeve 19 cross-shaped Schirmungselement 20 serves to receive the individual contact carrier parts 61, 62, 63, 64 with the contact elements 5 arranged therein. By the cross-shaped shielding element 20 thus the individual contact carrier parts 61, 62, 63, 64 and thus arranged in the contact carrier parts 61, 62, 63, 64 contact elements 5 are separated from each other, so that a crosstalk between one, a contact carrier member 61 associated shielded wire pair and another, a second Contact support member 62 associated shielded wire pair is largely prevented.

By arranging the further shielding sleeve 21 on the side facing away from the mating connector 2 side of the electrical connector 1, which is arranged in the handle body 4 produced by encapsulation, the individual wires 3 and the individual pairs of wires are additionally shielded. It can be seen from FIG. 2 that the cross-shaped shielding element 20 and the shielding sleeve 21 are arranged and formed in such a way that they overlap in the longitudinal direction of the connector 1. In the sectional view also also a sealing ring and a spring ring can be seen, which are omitted in the exploded view of FIG. 3, since they are not essential to the invention.

From the illustration of the mating connector 2 in FIGS. 10 to 12 it can be seen that in addition to the outer sleeve 9 with the external thread 8 of the cap screw 7 corresponding internal thread 10 in particular still a total of eight mating contact elements 22 receiving and holding mating contact carrier 23 belong to the mating connector 2.

It can be seen from FIGS. 11 to 13 that the mating contact elements 22 have a central region 24 in which the outer diameter is reduced compared to the outer diameter of the remaining regions of the mating contact elements 22. The reduction in the outer diameter of the contact elements 22 in the central region 24 serves to adapt the differential longitudinal impedance of the counter-contact elements 22, whereby an impedance jump in the longitudinal direction of the electrical connector is to be avoided. Since the differential longitudinal impedance of the individual mating contact elements 22 depends inter alia on their outer diameter and on the center distance of the mating contact elements 22, an impedance matching can be achieved by reducing the outer diameter in the middle region 24 of the mating contact elements 22, without the arrangement of the individual mating contact elements 22 must be changed.

In particular, from FIGS. 12 and 13 it can be seen that the contact elements 5 of the electrical connector 1 facing the end 25 of the mating contact elements 22 is hollow, so that the pin-shaped ends 14 of the contact elements 5 can be inserted into the hollow ends 25 of the mating contact elements 22 , The the contact elements 5 opposite ends 26 of the mating contact elements 22, however, are pin-shaped, so that the mating connector 2 can be connected, for example, with a circuit board.

As can be seen in particular from FIGS. 10 and 12, the counter-contact carrier 23 of the mating connector 2 also consists of four mating contact carrier parts 71, 72, 73, 74, each of which has a quarter-circle-shaped base surface. Corresponding to the contact carrier parts 61, 62, 63, 64, the mating contact carrier parts 71, 72, 73, 74 each have two bores 27 extending in the longitudinal direction of the mating contact carrier parts 71, 72, 73, 74 for receiving the mating contact elements 22. In contrast to the contact carrier parts 61, 62, 63, 64, however, the four mating contact carrier parts 71, 72, 73, 74 are connected to one another via an integral ring 28.

Like the electrical connector 1, the mating connector 2 also has a cross-shaped shielding element 29, by which the individual mating contact carrier parts 71, 72, 73, 74 and thus the mating contact elements 22 disposed therein are shielded from each other. Instead of a sleeve 19, the cross-shaped shielding element 29 of the mating connector 2 on the side facing away from the plug connector 1 an annular portion 30 which abuts in the mounted state on the end face of the outer sleeve 9. On the annular portion 30 four pins 31 are arranged, by means of which the mating connector 2 can be mounted on a circuit board.

From the sectional views of FIGS. 2, 9 and 11 it can be seen that the individual arms of the cross-shaped Schirmungselements 20 of the connector 1 on the mating connector 2 side facing each extending in the longitudinal direction of the connector 1 extension 32 and the individual arms of the cross-shaped Shielding element 29 of the mating connector 2 on the connector 1 side facing each have a extending in the longitudinal direction of the mating connector 2 corresponding counter-extension 33. The extensions 32 and the counter-extensions 33 are arranged and designed such that they overlap in the axial direction, ie in the longitudinal direction of the plug connection, when the plug-in connector 1 and the mating plug connector 2 are connected to one another (FIG. 9). In order to ensure a correct assignment of the individual contact elements 5 to the individual counter contact elements 22, a coding is formed between the connector 1 and the mating connector 2, so that the connector 1 and the mating connector 2 can be screwed together only in a certain orientation , The coding consists of a coding nose 34 formed on the crossing region of the cross-shaped shielding element 20 and a corresponding coding recess 35 introduced on a mating contact carrier part 72.

The figures show a particularly preferred embodiment of an electrical connector consisting of an electrical connector 1 and a mating connector 2, wherein the electrical connector 1 in particular provided and suitable, four shielded wire pairs on the four contact support members 61, 62, 63, 64 arranged eight contact elements 5 with the mating contact in the carrier 23 arranged eight mating contact elements 22 of the mating connector 2 to be releasably connected. Due to the robust and compact design of the connector 1 and the mating connector 2 and by the arrangement and design of the cross-shaped shielding elements 20 and 29, which preferably are made of metal, a connector is provided which is particularly good for Ethernet applications in harsh industrial environments suitable is. With the described and illustrated connector in particular the requirements are achieved in accordance with Catόa, so that the connector is also suitable for 10 Gigabit Ethernet and other network protocols.

Claims

claims:

1. Electrical connector for releasably connecting a multi-core cable with a mating connector (2), with a surrounding the cable or the wires (3) of the cable grip body (4), with a plurality of contact elements (5) receiving or holding contact carrier (6) and with a rotatably arranged sleeve-shaped threaded part (7), wherein the individual contact elements (5) are electrically conductively connected to the individual wires (2) and wherein the sleeve-shaped threaded part (7) with a corresponding sleeve-shaped threaded part ( 9) of the mating connector (2) can be screwed, characterized in that in the contact carrier (6) one of the number of contact elements (5) corresponding number of outwardly open, parallel to the longitudinal axis of the contact carrier (6) extending grooves (11) is formed, and that in the mating connector (2) facing the end face (12) of the contact carrier (6), adjacent to the grooves (11), one of the number Grooves (1 1) corresponding number of through holes (13) is formed through which the others (3) facing away from the ends (14) of the contact elements (5) protrude in the mounted state.

2. Electrical connector according to claim 1, characterized in that the through holes (13) in the end face (12) of the contact carrier (6) are funnel-shaped, wherein the inner diameter of the through holes (13) of the grooves (11) facing side for the mating connector (2) facing side enlarged.

3. Electrical connector according to claim 1 or 2, characterized in that the through holes (13) on the mating connector (2) facing the end face (12) of the contact carrier (6) by a collar (16) are surrounded, wherein the collar (16 ) on the central axis of the connector (1) facing side has an interruption (17).

4. Electrical connector according to one of claims 1 to 3, characterized in that in the grooves (1 1) each have a constriction (18) for latching with a corresponding portion of the contact elements (5) is formed.

5. Electrical connector according to one of claims 1 to 4, characterized in that the contact carrier (6) consists of four contact carrier parts (61, 62, 63, 64), each having a quarter-circle base, wherein in each contact carrier part (61, 62 , 63, 64) at least one groove (1 1) and in the mating connector (2) facing the end face (12) of each contact carrier part (61, 62, 63, 64) at least one through hole (13) is formed.

6. Electrical connector according to claim 5, characterized in that the four contact carrier parts (61, 62, 63, 64) surrounded by a cylindrical sleeve (19) and by a within the sleeve (19) arranged in the longitudinal direction of the sleeve (19) extending cross-shaped shielding element (20) are separated from each other, wherein the sleeve (19) and the shielding element (20) are preferably integrally formed and made of metal and wherein on the inner circumference of the sleeve (19) is preferably a stop for the contact carrier parts (61 , 62, 63, 64) is formed.

7. Electrical connector according to claim 6, characterized in that the cross-shaped shielding element (20) protrudes in the assembled state of the connector on the side facing the cable from the sleeve (19), so that on the sleeve of the (19) projecting end of the Shielding element (20), the metallic shielding of the cores (3) can be fastened.

8. Electrical connector according to one of claims 1 to 7, characterized in that the other (3) facing away from the end (14) of the contact elements (5) pin-shaped and the other (3) facing the end (15) is hollow, wherein the outer diameter of the end (15) facing the other (3) is greater than the inner diameter of the through holes (13) in the end face (12) of the contact carrier (6) or the contact carrier parts (61, 62, 63, 64).

9. Electrical connector with a connector (1) and with a mating connector (2), wherein the connector (1) enclosing a cable grip body (4), a plurality of contact elements (5) receiving or holding contact carrier (6) and a rotatably mounted cap screw (7) with an external thread (8) and the mating connector (2) an outer sleeve (9) with an external thread (8) of the cap screw (7) corresponding Having an internal thread (10) and a plurality of mating contact elements (22) receiving or holding mating contact carrier (23), characterized in that the mating contact elements (22) of the mating connector (2) has an axially extending portion (24), in the outside diameter for impedance matching is reduced.

10. Electrical connector according to claim 9, characterized in that the mating contact elements (22) facing the end (14) of the contact elements (5) pin-shaped and the contact elements (5) facing the end (25) of the mating contact elements (22) is hollow, such that the pin-shaped ends (14) of the contact elements (5) can be inserted into the hollow ends (25) of the mating contact elements (22).

11. Electrical plug connection according to claim 9 or 10, characterized in that the mating contact carrier (23) of the mating connector (2) consists of four mating contact carrier parts (71, 72, 73, 74), each having a quarter-circle-shaped base, wherein in each Mating contact carrier part (71, 72, 73, 74) at least one bore (27) for receiving a mating contact element (22) is arranged.

12. Electrical plug connection according to claim 11, characterized in that the four mating contact carrier parts (71, 72, 73, 74) by a within the outer sleeve

(9) arranged in the longitudinal direction of the outer sleeve (9) extending cross-shaped shielding element (29) are separated from each other.

13. Electrical connector according to one of claims 9 to 12, character- ized in that the contact carrier (6) of the connector (1) consists of four contact carrier parts (61, 62, 63, 64), each having a quarter-circle base, wherein at least one groove (1 1) in each contact carrier part (61, 62, 63, 64) and at least one through hole (13) in the front side (12) of each contact carrier part (61, 62, 63, 64) facing the mating connector (2) is

14. Electrical connector according to claim 13, characterized in that the four contact carrier parts (61, 62, 63, 64) of the connector (1) surrounded by a cylindrical sleeve (19) and arranged by a within the sleeve (19), in Longitudinal direction of the sleeve (19) extending cross-shaped Schirmungs- dement (20) are separated from each other.

15. Electrical plug connection according to claim 12 and 14, characterized in that the individual arms of the cross-shaped Schirmungselements (20) of the connector (1) on the mating connector (2) facing side in each case in the longitudinal direction of the connector (1) extending extension ( 32) and the individual arms of the cross-shaped shielding element (29) of the mating connector (2) on the connector (1) facing side in each case in the longitudinal direction of the mating connector (2) extending corresponding counter-extension (33), wherein the extensions (32) and the counter extensions (33) are arranged and formed to overlap in the axial direction when the connector (1) and the mating connector (2) are connected to each other.

16. A method for connecting the wires of a multi-core cable to an electrical connector, in particular according to one of claims 1 to 8, with a handle body, with a provided for receiving a plurality of contact elements contact carrier and with a rotatably mounted sleeve-shaped threaded portion, wherein in the contact carrier one of the number of contact elements corresponding number of outwardly open, parallel to the longitudinal axis of the contact carrier extending grooves and in the wires facing away from the end face of the contact carrier, adjacent to the grooves, a number of grooves corresponding number of through holes is formed, characterized by the following steps

Connecting the individual stripped ends of the wires to the facing end of the individual contact elements,

Passing through the through holes in the end face of the contact carrier, the opposite ends of the contact elements, wherein the contact elements have an angle to the longitudinal axis of the contact carrier greater than zero when passing through, and Swiveling the contact elements in the grooves in the contact carrier, so that the contact elements and with them the wires are parallel to the longitudinal axis of the contact carrier.

17. The method of claim 16, wherein the other end facing the contact elements is hollow, characterized in that the individual stripped ends of the wires inserted into the hollow ends of the contact elements and by mechanical compression (crimping) of the ends of the individual wires with the individual contact elements are electrically connected.

18. The method of claim 16 or 17, wherein the contact carrier consists of four contact carrier parts, each having a quarter-circle base surface, wherein in each contact carrier part at least one groove and in the cores facing away from the end face of each contact carrier part at least one through hole is formed, and wherein the connector has a cylindrical sleeve with a sleeve disposed within the sleeve, extending in the longitudinal direction of the sleeve extending cross-shaped shielding element, characterized in that the four contact carrier parts are inserted with the contact elements arranged therein in each case in a chamber formed by the cross-shaped shielding member and the sleeve.

19. The method according to claim 18, characterized in that the sleeve-shaped threaded part is pushed onto the sleeve and then the conductors connected to the contact elements and the contact carrier parts for producing the Griffkör- pers are molded.

20. The method of claim 18, wherein the contact carrier has a shielding sleeve, characterized in that the sleeve-shaped threaded part pushed onto the sleeve and the shielding sleeve over the wires connected to the contact elements veins and partially pushed over the sleeve and then the shielding sleeve and the Cables for the production of the handle body are molded.