EP2359441A1

EP2359441A1 - Electric plug connector

Info

Publication number: EP2359441A1
Application number: EP09782649A
Authority: EP
Inventors: Andreas Schumann; Hartmut Gärtner
Original assignee: Telegaertner Karl Gaertner GmbH
Current assignee: Telegaertner Karl Gaertner GmbH
Priority date: 2008-12-19
Filing date: 2009-09-04
Publication date: 2011-08-24
Anticipated expiration: 2029-09-04
Also published as: US20110300740A1; US8298922B2; RU2499337C2; ES2462041T3; CN102246360A; EP2359441B1; HK1159864A1; CN102246360B; WO2010069625A1; DE102008064535A1; RU2011129559A

Abstract

The invention relates to an electric plug connector having a connection module, which has multiple contact elements to establish an electric connection to corresponding contact elements of a connection socket, and having a terminal module, which has multiple terminal elements for connecting one lead each of a cable, wherein the terminal module can be detachably connected to the connection module for establishing an electric connection between the terminal elements and one contact element each. In order to refine the plug connector such that it can be connected to the cable more easily without special tools, according to the invention the connection module comprises a housing into which the terminal module can be inserted, as well as a tension relief member that is connected to the housing and extends over the terminal module, wherein a cable connected to the terminal module can be secured to the connection module via the tension relief member.

Description

ELECTRICAL CONNECTOR PLUG

The invention relates to an electrical connection plug with a connection module, which has a plurality of contact elements for producing an electrical connection with corresponding contact elements of a connection socket, and with a connection module having a plurality of connection elements for connecting each of a wire of a cable, wherein the connection module with the connection module detachably connectable to produce an electrical connection between the connection elements and in each case a contact element.

Such connectors are known from EP 1 693 933 Al. With their help, an electrical connection can be made between a cable, in particular a telephone or data transmission cable, and a

Connection socket. In such connectors, the arrangement of the contact elements is internationally standardized, for example in the standard IEC 60503-7-5. Often the connectors are also referred to as RJ45 connector. The cable should be connected to the connector as far as possible without special tools, so that the fitter can easily connect the cable to the connection plug at the construction site. For this purpose, EP 1 693 933 A1 proposes the use of a connection module with connection elements to which the wires of the cable can be connected. The connection module with the connected wires can then be brought together with a connection module having the contact elements, so that an electrical connection between the connection elements and the contact elements is produced. In a further assembly step, a shield plate is then pushed over the connection module and the connection module. After that, a previously about the Cable pushed outer housing pushed over the connection module and the enclosing shield plate. Finally, a union nut is screwed onto the rear end region of the outer housing. This will set the cable on the connector.

Object of the present invention is to develop an electrical connector of the type mentioned in such a way that it can be easily connected without special tools with the cable.

This object is achieved in an electrical connector of the generic type according to the invention that the connection module comprises a housing into which the connection module is inserted, and connected to the housing strain relief, which engages over the connection module, wherein by means of the strain relief connected to the connection module Cable can be fixed to the connection module.

In the connector according to the invention, the individual wires of the cable can be connected to the connection elements of the connection module. After the cable has been connected, the connection module can be inserted into the housing of the connection module. As a result, an electrical connection between the connection elements of the connection module and the contact elements of the connection module is produced. To ensure that the connection between the connection module and the connection module can not be unintentionally released, the connection module has a strain relief. The strain relief is connected to the housing of the connection module, engages over the connection module and can be fixed to the cable. Thus, after inserting the connection module connected to the cable into the housing of the connection module, it is only necessary that the housing is mechanically connected to the housing. set the strain relief on the cable. Since the strain relief starting from the housing overlaps the connection module, the connection module in the housing of the connection module is held immovable at the same time by fixing the strain relief on the cable. The installation of the connection plug on the cable can thus be carried out easily without special tools.

It is advantageous if the strain relief with the cable detachably connectable and after releasing the connection between the strain relief and the cable, the connection module is removed from the housing of the connection module. This makes it possible to use the connection module multiple times. The connection module can be disconnected from the connection module. The cable can then be disconnected from the connection module and, after using a new connection module, the connection module can be reused.

It is particularly advantageous if the connection between the strain relief and the cable can be released without special tools. For example, it may be provided that a simple screwdriver is sufficient to release the connection between the strain relief and the cable.

The strain relief has in a preferred embodiment of the invention, a rigidly connected to the housing cable support member and a hingedly connected to the housing cable clamping element, wherein the cable clamping element can be locked in at least one clamping position. When connecting the cable to the connector, the cable may become trapped between the cable clamp and the cable support. For this purpose, the cable clamping element can be locked in at least one clamping position. Conveniently, the cable support element is integrally connected to the housing. the. Housing and cable support element can be made for example as a one-piece component made of metal.

It is particularly advantageous if the cable clamping element in several positions, for example in three positions, can be locked. This makes it possible to connect cables of different thickness to the connector. Depending on the cable diameter, the cable clamping element can be locked in a suitable clamping position.

It can be provided, for example, that cables with a diameter between 5 mm and 8.5 mm can be connected to the connector. Despite the different cable diameters, the cables can be reliably fixed to the connector by means of the strain relief and an electrical connection to the corresponding connection socket can be made via the connector.

In an advantageous embodiment of the invention, a lid is pivotally mounted on the housing of the connecting module, which is movable between a closed position and an open position back and forth and which is releasably lockable in its closed position. In the open position, the

Cover the interior of the housing free, so that the connection module can be inserted into the housing. In the closed position, the cover covers the interior of the housing and thus protects the connection module and the end region of the cable directly adjacent to the connection module from mechanical damage.

Preferably, the lid is releasably connectable in its closed position with the cable support member. It can be provided, for example, that the lid can be latched to the cable support element. This can be done on the lid and be arranged on the cable support member cooperating locking elements. The detachable locking of the cover makes it possible to remove the connection module with the cable connected to it at any time. For this purpose, only the lock must be solved and the lid can be pivoted to its open position.

The cable clamping element is preferably held pivotably on the lid. It can be pivoted together with the lid between the open position of the lid and the closed position of the lid. In the closed position of the lid, the cable can then be fixed by means of the cable support member on the connector.

The locking of the cable clamping element in at least one clamping position takes place in an advantageous embodiment in that the cable clamping element can be latched to the lid. For this purpose, cooperating latching elements can be arranged on the cover and on the cable clamping element. In particular, it can be provided that the cable clamping element can be latched in several clamping positions with the lid. For example, several Rastvor- jumps can be arranged on the cover or the cable clamping element, which cooperate in different clamping positions each with a complementary locking projection or a complementary locking recess on the cable clamping element or on the cover.

The cable usually has not only a plurality of wires over which electrical signals can be transmitted, but in addition the cable comprises a surrounding the wires electrically conductive shield, such as a shield braid or a screen network that is connectable to ground potential. The shield protects the wires from electromagnetic interference. To ensure reliable shielding within the connector as well. cherzustellen, in an advantageous embodiment, the housing is electrically conductive and electrically connected to the housing screen contact part of the strain relief against the shield of the cable can be pressed. In such an embodiment of the invention is made possible by the mechanical fixing of the strain relief on the cable at the same time an electrical connection between the shield contact part of the connector and the shielding of the cable. For this purpose, it is only necessary to expose the shield of the cable before connecting the cable to the connection module. If the connection module is inserted into the housing of the connection module after the connection of the cable with shielding exposed, then the cable is pressed against the shield of the cable by the strain relief, and the shield contact part is electrically conductive is a conductive connection between see the shield of the cable and the electrically conductive housing of the connector made without the need for a special tool is required.

The shield contact part is preferably arranged on the inside of the cable clamping element. It may be rigidly connected to the cable clamping element. However, it is particularly advantageous if the screen contact part forms an independent component. It can be provided, for example, that the shield contact part forms a metal-made casting, which is floatingly mounted on the housing of the connection module and can be pressed against the cable by the cable clamping element of the strain relief. The Kabelklemmelement can, as already explained above, be locked in at least one clamping position, and thereby also the shield contact part immovably be fixed to the outside of the cable arranged shield. RJ45 type connectors were originally used only for the transmission of telephone signals having a relatively low frequency. However, with the increasing popularity of computers, RJ45 connectors also transmit data signals at a significantly higher frequency. This involves the risk that the quality of the signal transmission is impaired by disturbing signal coupling between different pairs of wires. The so-called "cross-talk" is therefore of great importance in assessing the quality of connecting plugs. In a preferred embodiment of the invention, the signal coupling between different pairs of wires can be kept particularly low by the connection module has a plurality of chambers, each receiving a pair of wires. The chambers are mechanically and preferably also electrically separated. They can be mutually shielded, for example. The provision of the chambers reduces signal coupling between different wire pairs. In addition, the provision of chambers, each receiving a pair of wires, has the advantage that the connection of the wires to the connection module can be done very easily. In particular, the danger is reduced that the wires are connected incorrectly. The installer only has to ensure that the respective electrical signal transmitting pairs of wires are introduced into a chamber.

In order to keep the signal coupling between different wire pairs low, it is advantageous if the connection module has a printed circuit board on which the connection elements are held, wherein the circuit board has contact members which are electrically connected to a respective connection element and each of a contact element of the connection module can be contacted. The printed circuit board can comprise conductor tracks in the usual way, via which the electrical signals can be transmitted from the connection elements to the contact members. In addition, the circuit board may carry capacitances and / or inductors to compensate for potential signal coupling between different pairs of wires.

It is particularly favorable if the printed circuit board has electrical conductor tracks in at least two planes, for example on its upper side and its lower side. Such circuit boards are known in the art as so-called "multi-layer".

It is particularly advantageous if connecting elements are held both on the upper side and on the underside of the printed circuit board. This allows a particularly compact design of the connection module.

The connection elements are preferably pressed into the printed circuit board. This allows a high mechanical strength of the connection elements, without thereby affecting the electrical connection between the connection elements and the conductor tracks of the printed circuit board. In addition, the production costs of the connection module can be kept low by the pressing of the connection elements in the circuit board.

The connection elements can be configured, for example, as insulation displacement terminals. It is particularly advantageous, however, if the connecting elements are designed as piercing contacts. Such piercing contacts have a piercing tip, which each penetrates a wire of the cable and thereby produces an electrical contact.

It is advantageous if the contact elements of the connection module are directly electrically connected to the contact members of the circuit board. examples For example, it may be provided that the contact members in the form of contact pads ("pads") are configured and the contact elements of the connection module each have a contact spring which can be applied under elastic deformation to a contact pad of the circuit board. There is thus a non-positive contacting of the contact elements on the circuit board. Starting from a wire of the cable, an electrical signal can thus be transmitted directly to the contact element via the connection element and the printed circuit board. When inserting the connection module into the housing of the connection module, the contact springs of the contact elements can each contact a contact field of the printed circuit board electrically and mechanically, wherein the contact springs deform elastically.

In a particularly advantageous embodiment of the invention, the connection module has at least one connection block with openings, in each of which a core of the cable can be inserted and which are aligned in each case to a connection element, wherein the connection block held on the circuit board between a mounting position and a contact position movable is, wherein the connecting elements in the mounting position of the terminal block release the openings for inserting the wires and wherein the connecting elements in the contact position of the terminal block dive into the openings for establishing an electrical connection between a respective vein and a connection element. For connecting the wires to the connection module, in such an embodiment, it is only necessary to insert the wires in each case into an opening of the at least one connection block, which first assumes its mounting position, and then to move the connection block into its contact position. In this position, a connecting element dips into each opening of the terminal block and establishes an electrical connection with the respective wire, which was previously introduced into the opening. The terminal block can be configured as a plastic molding and can carry a label that makes it easier for the fitter to insert the cores with the correct assignment in the openings.

It is particularly advantageous if the connection module has two terminal blocks, between which the printed circuit board is arranged, which carries on its upper side and on its underside connecting elements. The use of two terminal blocks, between which the circuit board is arranged, has the advantage that the terminal blocks can be pressed against each other after the insertion of the wires in the openings of the terminal blocks, so that they pass from their mounting position to their contact position and thereby the electrical connection between the wires and the connecting elements is made. The printed circuit board, which is arranged between the two terminal blocks, is subject to very little mechanical stress since the terminal blocks support one another. The risk of damage to the circuit board or the connection elements in the transition of the terminal blocks from their mounting position in their contact position is kept very low. In addition, such a design of the connector facilitates the connection of a cable, without the need for special tool must be used.

It is advantageous if on the circuit board on the top side and the underside protruding over the circuit board guide member is arranged, on which the two terminal blocks are slidably held, wherein the guide member is immersed in centrally disposed recesses of the terminal blocks. The terminal blocks can slide along the transition from their mounting position to their contact position on the guide part. It is particularly favorable if the terminal blocks can be fixed to the guide part in the assembly position. For example, it can be provided that the terminal blocks in the mounting position with the guide part are releasably latched. After the wires have been inserted into the openings of the terminal blocks, they can be pressed against one another, with the detent connection between the guide part and the terminal blocks being canceled. It is particularly advantageous if the terminal blocks can be latched in their contact position with the guide member.

The guide part can dip into a recess of the terminal blocks. The recess is preferably arranged centrally in the respective connection block. In particular, it may be provided that the terminal blocks each have four openings for insertion of a first pair of wires and a second pair of wires, and provided for the guide part recess may be disposed between the openings for the first wire pair and the openings for the second wire pair. In the contact position of the terminal block, thus, the guide part, which dips into the recess, separates the first wire pair from the second wire pair. The terminal blocks thus each define two brackets, which are separated from each other by means of the guide member.

It is particularly advantageous if the guide part forms a dividing wall which projects perpendicularly from the printed circuit board between two pairs of connecting elements.

The guide part formed as a partition wall can form an electrical shield, which is arranged between two pairs of connecting elements and thereby reduces a signal coupling between different wire pairs. As already explained, the connection module can be inserted into the housing of the connection module. For this purpose, the housing can form a shaft with a front in the insertion direction of the connection module Schachtab- cut which receives a front printed circuit board area of the printed circuit board on which the contact pads are arranged, and with a rear shaft portion which receives a rear printed circuit board area on which the connecting elements and the at least one terminal block are held. The contact springs of the contact elements can be immersed in the front shaft section so that they can electrically and mechanically contact a contact field arranged on the front printed circuit board area when the connection module is inserted into the shaft.

The printed circuit board, like the well, may have a stepped configuration in that the front duct section transitions into the rear duct section via a step and the front printed circuit board section merges into the rear circuit board section via a step, and when the connection module is inserted into the housing Stage of the shaft make a stop for the stage of the circuit board.

Preferably, the shaft walls of the front shaft section are at least partially made of an electrically insulating material, for example of a plastic material.

In an advantageous embodiment of the invention, the walls of the front shaft section form a guide for the front printed circuit board section. This facilitates the insertion of the connection module into the housing of the connection module and ensures that the contact springs of the Contact elements in the inserted position of the connection module contact each contact field of the circuit board.

The following description of a preferred embodiment of the invention düng is used in conjunction with the drawings for further explanation. Show it :

Figure 1: a perspective view of an electrical connector according to the invention;

Figure 2: a perspective, partially sectioned view of the

Connector of Figure 1 with a lid in the open position;

FIG. 3 shows an enlarged view of detail X from FIG. 2;

FIG. 4 shows a perspective view of the connector plug from FIG. 1 in the delivery state with a connection module and a connection module;

FIG. 5 is a sectional view of the connection module of FIG. 4;

FIG. 6: an enlarged view of detail Y from FIG. 5;

FIG. 7 shows an illustration of the connector of FIG. 1 in the manner of an exploded view; FIG. 8 shows a schematic representation of the connection module from FIG. 4 during insertion of wires of a cable into connection blocks of the connection module;

Figure 9 is a schematic representation of the connection module after the insertion of the wires of the cable in the terminal blocks;

Figure 10: an illustration of the interaction of the individual

Cores of the cable with connection elements of the connection module;

Figure 11: a schematic representation of the connection module with connected cable;

FIG. 12 shows a schematic representation of the connector when the connection module is inserted with the cable connected to it

Housing of the connection module;

FIG. 13 shows a schematic representation of the connector after the insertion of the connection module into the housing of the connection module;

Figure 14 is an enlarged view of detail Z of Figure 13;

FIG. 15 is a schematic representation of the connector with the cable connected;

FIG. 16 shows an enlarged view of detail Z1 in FIG. 15 with a cable clamping element in a first detent position; FIG. 17 shows an enlarged view of detail Z1 from FIG. 15 with the cable clamping element in a second detent position and FIG

Figure 18: an enlarged view of detail Zl of Figure 15 with the cable clamping element in a third detent position.

In the drawing, an inventive connector 10 is shown schematically, to which a cable 11 can be connected and which cooperates with a known per se and not shown in the drawing connection bushing. For this purpose, the connector 10 has a plug head 13 with a plurality of contact elements 14. In the illustrated embodiment, eight contact elements 14 are arranged next to one another. The plug head 13 can be inserted into a complementarily formed shaft of the connecting bush to produce a detachable connection. In the shaft contact elements of the connector socket protrude, which can electrically contact the contact elements 14 of the connector 10, so that an electrical connection between the connector 10 and the connector socket can be made in the usual way.

The connector 10 has a connection module 16 and a connection module 17. This is particularly clear from Figure 4. The connection module 16 comprises the plug head 13 with the contact elements 14, and the cable 11 can be connected to the connection module 17.

As becomes clear in particular from FIGS. 5 and 7, the connecting module 16 has a housing 19 on which a cover 21 is pivotably mounted. The cover 21 is between an open position shown in Figures 2, 4 and 5 and a closed position shown in Figure 1 and movable. In the open position, the cover 21 releases a housing interior 22 into which the connection module 17 can be inserted and to which the connection module 17 can also be removed again if required. The housing 19 is made of metal, for example of a metallic die-cast material, for example of a zinc die-cast. The lid 21 is also made of a metal, preferably of a die-cast material, such as zinc die-cast.

The contact elements 14 are held on an electrically insulating support member 24 which is fixed to a front end of the housing 19 and made of an electrically insulating plastic material. The contact elements 14 are pressed into the carrier part 24 and have a free-standing contact head 26, which can be contacted by a corresponding contact element of the connection socket and from the underside of which an elastically deformable contact spring 27 protrudes. This becomes clear in particular from FIG.

In addition to the carrier part 24, a fastening part 29 is held on the housing 19, which, like the carrier part 24, is made of an electrically insulating plastic material and has a spring-elastic pawl 30 projecting outwardly from the housing 19, and a cover 31, which projects into the housing 19 at the front side is insertable. With the help of the pawl 30 of the fastening part 29 of the connector 10 is mechanically latched with a corresponding connector socket.

In the interior of the housing 22, the carrier part 24 and the cover 31 of the fastening part 29 define a front shaft section 33 between them. The direction facing away from the contact elements 14 is closed to the front side. whose shaft section 33 via a shaft step 34, a rear shaft section 35 at.

As is clear in particular from FIG. 7, a shield contact element 38 is arranged on the inside of the cover 21, which is mounted floating on the housing 19 and which, just like the housing 19 and the cover 21, is made of a metal, preferably of a die-cast material, for example made of die-cast zinc.

On the outside, a cable clamping element 40, which is produced from an electrically insulating plastic material, is pivotably mounted on the cover 21. The cable clamping element 40 is in several clamping positions, in the illustrated embodiment, there are three clamping positions, with the lid 21 can be latched. For this purpose, three locking projections 42, 43, 44 are integrally formed on mutually remote outer sides of the lid 19 at a distance from each other, which cooperate with an integrally formed on the cable clamping element 40 locking lug 46. This becomes clear in particular from FIGS. 15 to 18.

The cable clamping element 40 cooperates with a plate-shaped Kabelstützele- element 48 which is integrally connected to the housing 19.

Cable support member 48 and housing 19 form a one-piece diecast part, between which the cable 11 can be clamped. This will be explained in more detail below.

The connection module 17 comprises a printed circuit board 50 into which connection elements 51 are pressed. Four connection elements 51 project upwards from the upper side 53 of the printed circuit board 50 and four further connection elements 51 project downwards from the underside 54 of the printed circuit board 50. The connecting elements 51 are designed as so-called piercing contacts and comprehensively each have a piercing tip. The cable 11 has a total of eight wires 56 to 63, wherein the wires 56 and 57 form a first pair of wires for transmitting an electrical signal. The wires 58 and 59 form a second wire pair, the wires 60 and 61 form a third wire pair and the wires 62 and 63 form a fourth wire pair, via each of which an electrical signal can be transmitted. By means of the eight connection elements 51, one core 56 to 63 can each be contacted.

The printed circuit board 50 forms a rear printed circuit board region 66 in the region of the connecting elements 51. This passes through a circuit board stage 67 in a front printed circuit board area 68 whose width is less than the width of the rear circuit board portion 66. At the front end portion of the circuit board 50 a total of eight contact members in the form of contact pads 70 are arranged, which are known per se and therefore for Achieving a better overview in the drawing, not shown interconnects each electrically connected to a connection element 51. The conductor tracks are partially arranged on the upper side 53 and partly on the underside 54 of the printed circuit board 50.

In the rear printed circuit board area 66, the printed circuit board 50 carries a guide element in the form of a partition wall 72 protruding from the printed circuit board 50 on both the upper side and the lower side. The dividing wall 72 is arranged centrally in the rear printed circuit board area 66 between two pairs of connecting elements 51, which respectively connect a pair of wires 56 , 57 and 58, 59 and 60, 61 and 62, 63, respectively.

The partition wall 72 carries on the upper side 53 of the printed circuit board 50, a first terminal block 74 and on the underside 54 of the printed circuit board 50, the partition carries a second terminal block 75. The two terminal blocks 74th and 75 are made of an electrically insulating plastic material and each have four openings in the form of longitudinal holes 77. In each case a transverse bore 78, which is arranged in alignment with a connection element 51, opens into the longitudinal bores 77. For mounting the terminal blocks 74 and 75 on the partition wall 72, the terminal blocks 74 and 75 between two pairs of longitudinal holes 77 in the longitudinal and transverse direction of the terminal blocks 74, 75 in the center each have a central opening 79 into which the partition 72 dips.

In the delivered, not yet connected to a cable 11 state of the connector 10, the terminal blocks 74 and 75 are locked in a mounting position at a distance from the circuit board 50 to the partition 72. In the assembly position, the terminal blocks 74 and 75 at such a distance to the top 53 and the bottom 54 of the circuit board 50 that the upper side or underside of the circuit board 50 projecting connecting elements 51 are not yet dive into the longitudinal holes 77. In the mounting position of the terminal blocks 74 and 75, the cores 56 to 63 can be inserted into the longitudinal bores 77 of the connecting elements 51 unhindered. Subsequently, the terminal blocks 74 and 75 can be pressed against each other, so that they are transferred to a contact position in which they occupy a smaller distance from the circuit board 50. In the contact position, the connection elements 51 dip laterally into the longitudinal bores 77 via the transverse bores 78, so that the piercing tips of the connection elements 51 can each penetrate a vein 56 to 63 and electrically contact them. As a result, an electrical connection is made between the wires 56 to 63 and the connecting elements 51, which in turn are electrically connected to the contact pads 70 via the printed conductors, not shown in the drawing. The wires 56, 57 of the first wire pair are separated in the contact position of the terminal block 74 by means of the partition wall 72 of the cores 58, 59 of the second wire pair. The terminal block 74 is divided by the partition wall 72 into two chambers, each receiving a pair of wires. In a corresponding manner, the connection block 75 is subdivided by the dividing wall 72 into two chambers each receiving a pair of cores. Overall, the connection module 17 has four separate chambers for receiving in each case a pair of wires.

As already explained, the connection module 17 can be introduced into the housing interior 22. In this case, the front printed circuit board area 68 dips into the front shaft section 33, so that the contact springs 77 can each contact a contact pad 70 electrically and mechanically, with the contact springs 27 elastically deforming. The front printed circuit board area 68 lies flat on the electrically insulating cover 31 and is contacted on the upper side by the electrically insulating contact head 26. This becomes clear in particular from FIG. The front shaft section 33 thus forms a guide for the printed circuit board 50.

The connection module 17 can be pushed so far into the housing interior 22 until the circuit board stage 67 abuts against the chute stage 34. This thus forms a stop for the connection module 17.

If the connection module 17 is inserted into the housing interior 22, the free edges of the partition wall 72 projecting from the printed circuit board 50 abut against the inside of the housing 19. The partition wall 72, like the housing 19, is electrically conductive and forms an electrical shield arranged between and shielding the above-mentioned pairs of wires. After the insertion of the connection module 17 with the cable 11 connected thereto into the housing interior 22, the housing interior 22 can be closed by means of the cover 21. In its closed position, the lid 21 can be latched to the housing 19. For this purpose, the cover 21 on opposite outer sides latching projections 81, 82 which dive in the closed position of the lid 21 respectively in a complementarily formed locking receptacle 83 and 84 of the cable support member 48 which is integrally connected to the housing 19. After closing the lid 21, the cable clamping element 40 arranged pivotably on the cover 21 can be pressed against the cable 11 and latched in a clamping position adapted to the respective thickness of the cable 11 by means of the latching projections 42, 43 and 44 and the associated latching lug 46. The cable 11 is thereby clamped between the cable clamping element 40 and the cable support element 48. Cable clamping element 40 and cable support member 48 together form a strain relief of the connector 10.

The shield contact element 38 is arranged on the inside of the cable clamping element 40 and is pressed by the cable clamping element 40 against the cable 11. It can thereby the before connecting the cable 11 to the

Terminal module 17 contact exposed shield 87 of the cable 11, so that an electrical connection is made between the electrically conductive housing 19 and the shield 87. The latter can be configured for example in the form of a shield braid or a screen network. Such shields 87 are known per se to a person skilled in the art.

The installation of a cable 11 on the connector 10 is thus very simple and can be performed without special tools by the fitter on a construction site. In a first assembly step, which is shown in FIG. is set, the fitter introduces the wires 56 to 63 in the longitudinal holes 77 of the terminal blocks 74 and 75, which initially occupy their mounting position. Previously, the fitter has exposed the shield 87 of the cable 11 at one end portion.

In a second assembly step, as shown in Figure 9, the fitter presses the two terminal blocks 74 and 75 against each other with the interposition of the circuit board 50. The terminal blocks 74 and 75 thereby go into their mounting position and the connection elements 51 dive into the longitudinal holes 77 a for producing an electrical contact between the wires 56 to 63 and the connection elements 51.

The over the terminal blocks 74 and 75 projecting end portions of the wires 56 and 63 can then be separated, as shown in Figure 11. Thereafter, in a further assembly step, the fitter can insert the connection module 17 into the housing interior 22, the contact springs 27 each contacting a contact field of the printed circuit board 50.

In a further assembly step, which is shown in Figure 13, the fitter can then close the lid 21, wherein the lid 21 is locked in its closed position with the cable support member 48, as shown in Figure 14.

In a final assembly step, the installer can then press the cable clamping element 40 against the cable 11 and in a desired

Snap latching position with the lid 21, wherein at the same time the shield contact element 38, the shield 87 electrically contacted. The connector 10 is then reliably fixed to the cable 11 and there is in each case an electrical connection between the wires 56 to 63 and the Kon- The connection plug 10 can then be connected in the usual way with a connection socket, wherein by means of the pawl 30 of the fastening part 29, a mechanically detachable connection between the connector 10 and the corresponding connection socket can be manufactured.

The installation of a cable 11 on the connector 10 is thus very simple.

If the connection between the cable 11 and the connector 10 is to be released again, the fitter can open the cover 21 again for this purpose, and then he can remove the connection module 17 from the housing interior 22. The connection module 17 can then be disconnected from the cable 11 by means of a side cutter and the connection module 16 can be used again in conjunction with another connection module.

Claims

PATENT CLAIMS

1. An electrical connector with a connection module having a plurality of contact elements for producing an electrical connection with corresponding contact elements of a connector socket, and with a connection module having a plurality of connection elements for connecting each of a wire of a cable, wherein the connection module with the connection module is detachably connectable to Producing an electrical connection between the connection elements and in each case one contact element, characterized in that the connection module (16) comprises a housing (19) into which the connection module (17) can be inserted, and a strain relief (40) connected to the housing (19) , 48), which engages over the connection module (17), wherein by means of the strain relief (40, 48) to the connection module (17) connected cable (11) on the connection module (16) can be fixed.

2. Electrical connector according to claim 1, characterized in that the strain relief (40, 48) releasably connectable to the cable (11) and after releasing the connection between the strain relief (40, 48) and cable (11) the connection module (17) Housing (19) of the connection module (16) can be removed.

3. Electrical connector according to claim 1 or 2, characterized in that the strain relief a rigidly connected to the housing (19) cable support member (48) and a hinged to the housing (19) has a connected cable clamping element (40) which can be locked in at least one clamping position.

4. Electrical connector according to claim 3, characterized in that the cable clamping element (40) can be locked in several clamping positions.

5. Electrical connector according to claim 3 or 4, characterized in that on the housing (19) a lid (21) is pivotally mounted, which is movable back and forth between a closed position and an open position and which is releasably lockable in the closed position.

6. Electrical connector according to claim 5, characterized in that the cover (21) with the cable support member (48) is releasably connectable.

7. Electrical connector according to claim 5 or 6, characterized in that the cable clamping element (40) is pivotally supported on the cover (21).

8. Electrical connector according to one of claims 5 to 7, characterized in that the cable clamping element (40) with the lid (21) can be latched.

9. Electrical connector according to one of the preceding claims, characterized in that the housing (19) is electrically conductive and that an electrically connected to the housing (19) shield contact element (38) of the strain relief (40, 48) against a shield (87 ) of the cable (11) can be pressed.

10. Electrical connector according to claim 9, characterized in that the shield contact element (38) on the inside of the Kabelklemmelements (40) is arranged.

11. Electrical connector according to one of the preceding claims, characterized in that the connection module (17) has a plurality of chambers each receiving a pair of wires (56, 57; 58, 59; 60, 61; 62, 63).

12. Electrical connector according to one of the preceding claims, characterized in that the connection module (17) comprises a printed circuit board (50) on which the connection elements (51) are held, wherein the circuit board (50) contact members (70) which electrically are connected to a connection element (51) and in each case by a contact element (14) are contacted.

13. Electrical connector according to claim 12, characterized in that both on the upper side (53) and on the underside (54) of the printed circuit board (50) connecting elements (51) are held.

14. Electrical connector according to claim 12 or 13, characterized in that the connection elements (51) are pressed into the circuit board (50).

15. Electrical connector according to claim 12, 13 or 14, characterized in that the connection elements (51) are designed as piercing contacts.

16. Electrical connector according to one of claims 12 to 15, characterized in that the contact members in the form of contact fields (70) are configured and the contact elements (14) each have a contact spring (27), which under elastic deformation to a contact field (70 ) can be applied.

17. Electrical connector according to one of claims 12 to 16, characterized in that the connection module (17) has at least one connection block (74, 75) with openings (77), in each of which a wire (56 to 63) of the cable (11 ) are insertable and each aligned with a connecting element (51) are aligned, wherein the terminal block (74, 75) on the circuit board (50) between a mounting position and a contact position is movably held, wherein the connecting elements (51) in the mounting position of Terminal block (74, 75), the openings (77) release for inserting the wires (56 to 63) and wherein the connection elements (51) in the contact position of the terminal block (77, 78) in the openings (77) immerse for establishing an electrical connection between in each case a wire (56 to 63) and a connecting element (51).

18. An electrical connector according to claim 17, characterized in that the connection module (17) has two terminal blocks (74, 75), between which the printed circuit board (50) is arranged, on its upper side (53) and on its underside (54). Wearing connecting elements (51).

19. An electrical connector according to claim 18, characterized in that on the circuit board (50) has a top side and underside on the circuit board (50) projecting guide member (72) is arranged on in that the two connection blocks (74, 75) are held displaceably, wherein the guide part (72) dips into centrally arranged recesses (79) of the connection blocks (74, 75).

20. An electrical connector according to claim 19, characterized in that the guide part forms a partition wall (72) which protrudes perpendicularly from the printed circuit board (50) between two pairs of connection elements (51).

21. An electrical connector according to claim 20, characterized in that the partition wall (72) forms an electrical shield, which is arranged between two pairs of connection elements.

22. Electrical connector according to one of claims 17 to 21, characterized in that the at least one connection block (74, 75) in the mounting position on the guide part (72) can be fixed.

23. Electrical connector according to one of claims 17 to 22, characterized in that the housing (19) forms a shaft with a in the insertion direction of the connection module (17) front shaft portion (33) having a front printed circuit board region (66) of the printed circuit board (50 ), on which the contact pads (70) are arranged, and with a rear shaft section (35) which accommodates a rear circuit board region (66) on which the connection elements (51) and the at least one connection block (74, 75) are held ,