EP0809331B1 - Multipolar plug system having a socket with at least one plug for electrical and mechanical connection of electric conductors - Google Patents

Abstract

The plug connector system has a plug socket fitted with at least one single or double plug (40), for a 4-pole or 8-pole connection. The plug socket module (8) is divided into 4 chambers (32,33,34,35), each associated with a respective line wire pair of a screened cable, with a pair of pins (36) cooperating with contact sleeves (88) of the inserted plug. The chambers of the plug socket module can be positioned in a square configuration, with a single plug inserted in 2 adjacent chambers, or a double plug fitted into all 4 chambers.

Description

The present invention relates to a multi-pin connector system a socket and at least one plug for electrical and mechanical Connecting electrical conductors, the socket being a socket housing includes and the socket housing in several individually after outside open chambers is divided

In particular, the connector system according to the invention is for building cabling class E provided. The class determines the transmission quality of electrical signals from entire transmission links or transmission systems from one end point to another end point. In corresponding standards, such as EN 50173, are limit values for the maximum attenuation for crosstalk, for reflections, etc., as well specified for the maximum permissible frequencies. For class E and future Classes are provided with frequencies up to 600 MHz and more work.

It is in the trend of technical progress, building cabling in the future no longer separate for telephone, for EDP systems, for video systems, etc., but only a single building wiring network to provide information on the information and data of all in Question coming services are transmitted. A start is with ISDN (Integrated Service Digital Network).

For building cabling for the aforementioned purpose Usually shielded cables with eight wires or four wire pairs each two twisted wires are provided. However, there will be a maximum of four per service Cores or two pairs of wires required. In the one that is preferably used today Connector system, which became known under the type designation RJ 45 is, at most one plug can be plugged into a socket for a single service. If two services are required at one workstation, two must Sockets can be mounted side by side. This is a fairly expensive process Work, since most workplaces nowadays have more than one Service is required.

It has also been shown that the aforementioned electrical transmission parameters in the RJ 45 connector systems at frequencies of over 300 MHz are unsuitable and desirable sizes hardly can be achieved. The internal connection technology is responsible for this with usually cutting / clamping connections, the wires inside the Socket or the plug of this connector system is often angled become. It is also known that the shields in the RJ 45 connector system of the individual wire pairs not directly up to the plug contacts are or can be managed.

The plugs according to US-A-5 342 221 are for example Suitable for mounting four pairs of connections. The plugs have one rectangular configuration. The lengths of the plugs are a function of the Number of pairs of connections that are installed in the connector. The one Plugs have a plurality of individual plugs for insertion into plug sockets the other connector. Individual of the individual plugs or plug sockets have flattened corners so that they only belong together Plugs can be plugged together. The individual plugs and sockets each have only one contact.

The subject of EP-A-0 037 013 relates to a multiple plug with a plurality of individual plug heads, each of which has at least one pole, however, is preferably bipolar and is connected to a corresponding one Number of single or multi-pole counterparts on one device or Intermediate plug can be plugged. The goal is to build a multiple connector with regard to the connection to the device or to an adapter Simplified handling with the greatest possible variability of the combination of the individual plug heads allowed among each other. This will make this goal achieved that the individual plug heads by means of connecting piece in any arrangement among themselves the different arrangement of the poles of counterparts on the device or adapter plug against falling out or pulled out, but at any time if necessary from the connector detachable again, can be plugged together to form a compact plug.

EP-A-0 700 126 relates to a connector for a cable with several Veins, which are covered by a metal shield inside a cable jacket runs, are enclosed together. It is a connector housing with a first device for electrically connecting the wires with one each in the housing arranged connector pole available. The connector poles are for manufacturing an electrical connector accessible from outside the housing. Furthermore, there is a second device for electrical connection of the shield with a ground or earth connection. The second device has a ring with at least one metal outer surface which is loosely placed over the cable end inserted into the connector. Of the protruding from the cable sheath removed into the area of the ring The screen is guided over the outer surface of the ring. Within that Housing, essentially along the entire outer surface and opposite to this there is an electrical contact element, which is electrically connected to the ground or earth connection.

It is the object of the present invention, one against the propose improved plug system mentioned prior art. Especially should be achieved that not only one at a single outlet Service can be removed.

Another object of the present invention is to provide electrical Transmission parameters compared to the known connector system of the type RJ 45 to improve and transmission frequencies up to 600 MHz and higher to enable. An additional goal is for guiding the shield within the connector system, i.e. inside the outlet and to suggest an improvement within the connector.

The task is done with a multi-pin connector system a socket and at least one plug for electrical and mechanical Connecting electrical conductors solved in that in each of the Chambers two first plug contacts accessible from the outside are arranged, that the connector comprises a connector housing, at least in the connector housing two guide bodies, each with two second ones accessible from the outside Plug contacts are arranged, and that one chamber in each chamber the chamber of the socket is plugged in, the first and the Connect the second plug contacts and the socket housing and that Plug housing have a metal surface on all sides and that Plug system is provided for connecting multi-core cables, wherein each core of the cable within the outlet is essentially in the is guided and connected in the axial direction of the first plug contacts and that within the connector each core of another cable essentially guided and connected in the axial direction of the second plug contacts and the connectable cables are shielded cables, which are a first Have a shield underneath a cable sheath that covers all the wires in the cable encloses that two twisted wires of the cable together are included with a second screen, the second screen inside of the socket housing directly to the first plug contacts is and that the second shield of another cable inside the connector housing is led directly to the second plug contacts.

Special designs and solutions for the others mentioned Tasks are included in the features of the dependent claims.

Fig. 1 eine perspektivische Explosionsansicht der Steckdose,

Fig. 2 eine perspektivische Explosionsansicht der Steckdose mit angeschlossenem Kabel,

Fig. 3 eine perspektivische Darstellung der Steckdose in Ansicht von vorne,

Fig. 4 eine perspektivische Ansicht der Steckdose in Ansicht von hinten,

Fig. 5 eine perspektivische Explosionsansicht der Steckdose in Ansicht von vorne,

Fig. 6 eine perspektivische Darstellung des Einfachsteckers in Ansicht von vorne,

Fig. 7 eine perspektivische Darstellung des Doppelsteckers in Ansicht von vorne,

Fig. 8 eine perspektivische Explosionsansicht des Einfachsteckers,

Fig. 9 eine perspektivische Explosionsansicht des Einfachsteckers mit angeschlossenem Kabel,

Fig. 10 eine perspektivische Explosionsansicht des Doppelsteckers mit angeschlossenem Kabel.

Exemplary embodiments and their use are described in more detail below with reference to the accompanying drawing. Show it

1 is an exploded perspective view of the socket,

2 is an exploded perspective view of the socket with the cable connected,

3 is a perspective view of the socket in front view,

4 is a perspective view of the socket in rear view,

5 is an exploded perspective view of the socket in front view,

6 is a perspective view of the single connector in front view,

7 is a perspective view of the double connector in front view,

8 is an exploded perspective view of the single plug,

9 is an exploded perspective view of the single plug with connected cable,

Fig. 10 is an exploded perspective view of the double connector with the cable connected.

1 is an embodiment of an inventive Socket 1 shown. In the perspective exploded view of FIG. 1 is the socket, which comprises a two-part socket housing 2, 3 is shown without cable and in the open state. The two-part housing consists of a base part 2 and a cover 3, which when put on clicks onto the base part. To do this are essentially on Base part on the long sides each a locking rib 4 and each on the cover a resilient locking tongue 5 is provided. When putting the cover on 3 snap onto the base part 2, the snap-in tongues over the snap-in ribs, which holds the cover to the base.

The two parts of the socket housing 2, 3 are preferred made of plastic. In particular, they are injection molded parts from one thermoplastic manufactured. The two parts of the socket housing are coated on all sides with a metal layer. The coating is after known type created with a galvanic process. A first coating comprises a copper layer, which conducts electricity well, and how further on is described for the electrical connection of a screen one in the Socket inserted cable with one on the socket connection side arranged ground or earth connection 6, 7, is determined. The copper layer shields the socket interior from electromagnetic fields at the same time from. Above the copper layer is an anti-corrosion protection Nickel layer applied.

A module 8 is located inside the socket housing, in the base part 2 inserted with plug poles. The module 8 has an insertion opening 9, in which the socket poles are accessible and when a corresponding one Plug counterpart with the sockets of the latter in to make an electrical connection. The connector system is assigned to class E, i.e. suitable for transmitting frequencies up to 600 MHz and more. The connector system is intended for S / STP Category 6 cables.

Connected to a cable to be connected to the connector facing end face 10 of the base part 2, in which the cable insertion opening 11 is arranged, a semicircular groove 12 is provided, which is rectangular extends to the longitudinal axis of the connector. The same semicircular groove 13 is then connected to a cable to be connected to the socket End face 14 in the cover 3. With the cover on 3 on the base part 2 of the socket housing is the groove 12, 13 circular. In this groove, a ring 15 is used for electrical connection the shield of a cable with the earth or earth connection 6, 7 serves. The ring 15 is preferably, like the other parts of the socket, made of a metallized plastic. It is essential that the one labeled 16 outer surface of the ring 15 is good electrical conductivity. At a Plastic ring can do this, for example, with a metal coating, similar to such as described above can be achieved. The groove 2, 3 is dimensioned so that the ring both in its longitudinal axis and in the direction of its diameter easily has play.

The module 8 is provided with four plastic inserts 17, one of which each two cylindrical arranged parallel to the longitudinal axis of the base part Has through holes 18 in which connector pins come to rest. With a vertical partition 19 and a horizontal one are connected to the module Partition wall 20, between each of which a shielded pair of wires of the connecting cable comes to rest.

2 is also an exploded perspective view of the Socket, but shown with the cable connected. The cable 21 that to be connected to the socket comprises a plurality of wires 22, 23, In the example shown, eight wires twisted in pairs within a cable jacket 24 run. Two twisted wires are through an inner one Shield 25 shielded. An outer screen 26 shows all of the wires as a whole surrounding layer from a wire mesh. To connect the Socket 1 on the cable 21, the jacket 24 of the cable in an end region away. The twisted veins with the inner lie from the end of the jacket Shielding free. The ring 15 has previously been pushed over the jacket is now arranged so that it is in the area of the jacket end comes to rest, the wire mesh of the outer screen 26 over the outer circumferential surface 16 of the ring 15 is placed. The outer surface 16 of the ring 15 should as far as possible over the entire circumference of the ring Wire mesh of the outer screen 26 may be covered evenly. The ring 15 lies with the wire mesh of the outer screen turned over it 26 in the groove 12 of the base part 2. The play of the groove to the ring is such that there is just enough space to accommodate the umbrella. With attached Cover 3, the ring 15 is then together with its Outer outer surface 16 upside down outer shield 26 of the cable 21 in the circumferential groove 12, 13. The screen 26 lies over the entire circumference of the Groove distributed on the end faces and the outer surface of the groove 12, 13. Of the metallic coating of the socket housing 2, 3 acts as a contact element or electrical contact track for establishing an electrical connection between the ring 15, the screen 26 and the connector housing 2, 3, in particular the connecting tabs 6, 7, which are for the ground or earth connections on the Outside of the cover 3 are arranged. Through the groove 12, 13 is the Ring 15 held stationary with respect to the longitudinal axis of the socket. The groove acts as a stop organ for the ring. So the groove is not just an electrical one Contact between the screen and the tongues 6, 7 forth, but together with the ring is also responsible for the strain relief of the cable 21. The cylindrical earth connections 6, 7 are for receiving of connectors, in particular round sleeves 27 provided to the Ground or earth wires 28 are connected. Furthermore, the basic part is still an insert part 29 is provided, the contact with two tabs 30 and 31 between the inner screens 25 of the wires 22, 23 and the base part 2.

In Fig. 3 the socket is shown in perspective. The module 8 of the socket has four chambers 32, 33, 34 and 35, wherein one pair of wires of the pair-shielded cable 21 per chamber was added can be. For each chamber of module 8, see below is described, two connector pins 36 mounted. The inner chamber walls 90 are used to make contact with the plug.

In Fig. 4 the socket is a perspective view from the back shown from seen.

5 is an exploded perspective view of the socket shown viewed from the front. In the four chambers 32, 33, 34 and 35 of the module 8, four plastic inserts 17 are inserted. The plastic inserts each have two through holes 18 on a diagonal. In the through holes 18, plug pins 36 are used on the back the eight wires of the cable are connected. The arrangement of each two connector pins in the four chambers is such that at the same time reverse polarity protection is achieved. The plug of a service can only be in one Position. The insert part 29 is used on the one hand for production contact from internal screens to the case, on the other hand for locking the module 8 in the base part 2. This locking takes place by a step 37 in the bottom 38 of the insert part 29. In the assembled Socket engages a recess on the bottom edge of the vertical Partition 19 into a cam 39 on the insert part 29.

Fig. 6 shows a perspective view of a single plug, in which the receptacles 88 are housed. The plug 40 is suitable yourself to join a service. It comprises a cover 41 and a T-shaped one Part 42, which serves as the floor. The cover 41 and the bottom 42 form the housing. The guide body 43, which extends through the connector extend are provided with through holes 44 which are on a diagonal lie and in which the sockets 88 are arranged. The diagonals on the two guide bodies 43 on which the holes 44 lie are parallel. In the rear end of the cover are a groove 45 and two cams 46 for Holding a kink protection provided for the cable 47. The parts of the simple and double plug are preferably made of plastic. Especially they are injection molded parts made of a thermoplastic made and coated on all sides with a metal layer and the rest manufactured in the same way as the parts of the socket.

A double plug 48 is shown in perspective in FIG. 7 shown, which is for connecting a service with four wire pairs to the Socket is suitable. The plug has four guide bodies 49, the one of the single plug. The through holes 50 are also arranged on a diagonal, the diagonals on which the Through holes are located, the upper two guide bodies and the lower the two guide bodies are at right angles to each other. In the through holes 50 sockets 89 are arranged. Between the two equally trained Covers 51 and 52 of the connector is a double T-shaped center piece 53 arranged. In the rear part of the connector are two grooves 54 and four cams 55 for mounting an anti-kink protection for the cable.

8 is a perspective exploded view of the single plug 40 shown. The bottom 42 has a central web 70 and this on both sides Pins 71 arranged on the web. An arcuate groove 56 in the back End of the bottom 42 serves to receive a ring 57. In the back Part of the connector is plugged onto the guide body 43 extension pieces 58, which are also provided with through holes 59. The end pieces 58 are with bolts not visible from this figure with the guide bodies 43 connected. The bottom 42 of the plug is on both sides of the Center bar 70 provided with strips 60 which hold the guide body 43. The cover 41 has a semicircular groove 61 for receiving the ring 57 provided. A holder 62 with a bend protection 63 is in the groove 45 of the Lid 41 attached, with recesses 64 on the holder 62 in the on the lid provided cams 46 engage.

9 is a perspective exploded view of the single plug shown with connected cable 65. The guide body 43 are with Berylliumbronze 72 provided which has contact with the housing 41, 42 and the function of a screen for the parts that protrude beyond the housing the guide body 43 exercises. The cable 65 is under its outer insulation jacket 66 provided with an outer screen 67. The screen 67 consists of a wire mesh. Before connecting the cable to the Part of the sheath 66 of the outer shield 67 is removed from the plug. The protruding part of the screen 67 over the casing is over the Ring 57 put over, causing a contact of the outer screen with the housing 41, 42 is produced. The housing and the ring 57 are as in the Metallized socket. Two wires 68 of the cable are twisted together and provided with an inner screen 69. The inner screen 69 is each clamped between the central web 70 and a bolt 71, so that a Contact of the inner screen 69 with the housing 41, 42 is made.

10 is an exploded perspective view of the double connector shown with connected cable. The plug corresponds to that 7. The center piece 53 has two protruding downwards and upwards Bridges 73. Four guide bodies 49 are provided, on both sides of the middle piece 53 are arranged. The guide body 49 are also provided with beryllium bronze foils 74 so that the over the housing 51, 52 protruding parts of the guide body 49 are shielded. Also here are extension pieces 75 on the guide body from this figure not visible bolts. There are two in each of the guide bodies 49 Bushings 89 arranged in the through holes 50. In the end pieces 75, the exposed wires 76 of the cable 77 are guided. The veins are with the inner screens 78 each between a bolt 79 and the central web 73 clamped in order to achieve good contact with the housing 51, 52. The In principle, cable 77 is constructed in the same way as cable 65 according to FIG. 9, with the difference is that there are four twisted pairs. Each Wire pair 76, 76 has an inner screen 78, with all four wire pairs are encased by an outer screen 84. Most is located the insulation jacket 80. In the cover parts 51 and 52 is a semicircular Grooves 81 and 82 embedded, in which two grooves an annular Plate 83 is inserted. Braid 84 of the exposed exterior Screen is placed around the plate 83 to make contact between the outside Manufacture screen 84 and the housing 51, 52. Approaches 85 in the upper Cover part 51 and lugs 86 in the lower cover part 52 snap when assembled of the plug in grooves 87 in the center piece 53.

In the connector system according to the invention, one can optionally or two services are switched on, two or four per service Wire pairs of the eight-core cable of the socket can be used. For one or two services with two wire pairs become one or two single plugs 40 and for a service with four wire pairs a double connector 48 used. In the connector system according to the invention, the earthing is uninterrupted carried out. One through the whole outlet or the whole The shield made through the connector prevents secondary or crosstalk. The connector system is a four-chamber system with four metallized Chambers 32, 33, 34, 35 formed, with one pair of wires per chamber 22, 23, 68, 76 of the pair shielded cable can be added. The plug system is due to this construction and the grounding carried out EMC-tight. Because of the high frequencies, the connection system executed radially with tulip contacts. This makes it a straight passage the conductor through the connector system achieves what is beneficial to the attenuation affects. In the socket 1 are contrary to the common Norm the connector pins 36 arranged and in the connector 40, 48 are the sockets 88, 89 housed. This reversed arrangement makes a better protection of the contact pins achieved. The arrangement of the two contact pins in the four chambers on a diagonal is that at the same time one Reverse polarity protection is achieved. The plug of a service can only be in one single position.

Claims (12)

1. Multipolar connector system with an outlet (1) and at least one connector (40, 48) for electrical and mechanical connection of electrical conductors (22, 23, 68, 76), the outlet (1) comprising an outlet housing (2, 3, 8) and the outlet housing being divided into a plurality of individual, outwardly open chambers (32, 33, 34, 35), characterised in that two externally accessible first connector contacts (36) are disposed in each of the chambers, in that the connector (40, 48) comprises a connector housing (41, 42, 51, 52), at least two guide bodies (43, 49), with two externally accessible second connector contacts (88, 89) each, being disposed in the connector housing, and in that one guide body (43, 49) per chamber (32, 33, 34, 35) is engageable in the chamber of the outlet (1), whereby the first (36) and the second connector contacts (88, 89) connect, and the outlet housing and the connector housing have a metallic surface on all sides, and the connector system is foreseen for connection of multi-core cables, each wire (22, 23) of the cable (21) being led and connected inside the outlet (1) essentially in the axial direction of the first connector contacts (36), and in that each wire (68, 76) of another cable (65, 77) is led and connected inside the connector (40, 48) essentially in the axial direction of the second connector contacts (88, 89), and the connectable cables (21, 65, 77) being shielded cables which have a first shield (26, 67, 84) under a cable sheathing (24, 66, 80), which shield encloses all wires (22, 23; 68; 76) of the cable, in that each pair of twisted-together wires (22, 23; 68; 76) of the cable is contained together by a second shield (25, 69, 78), the second shield (25) being led inside the outlet housing (2, 3, 8) directly up to the first connector contacts (36), and in that the second shield (69, 78) of another cable (65, 77) is led inside the connector housing (41, 42, 51, 52) directly up to the second connector contacts (88, 89).
2. Connector system according to claim 1, characterised in that there are four chambers (32, 33, 34, 35), in that the chambers are preferably disposed in pairs next to one another and over one another, in that two first connector contacts (36) are provided in each chamber, and in that one single connector (40) per two chambers or a double connector (48) per four chambers is provided and is engageable.
3. Connector system according to claim 2, characterised in that the first connector contacts (36) are disposed in the chambers of the outlet, and the corresponding second connector contacts (88, 89) are disposed in the connectors (40, 48) in such a way that one of the connectors is engageable in two specific, associated chambers only.
4. Connector system according to one of the claims 1 to 3, characterised in that all first connector contacts, which are disposed in the outlet, are contact pins (36), and in that the second connector contacts, which are disposed in the connectors, are contact sockets (88, 89).
5. Connector system according to one of the claims 1 to 4, characterised in that the guide bodies (43, 49) project out of the connector housing (41, 42, 51, 52) of the connector (40, 48), which guide bodies project into the associated chamber (32, 33, 34, 35) of the outlet housing (2, 3, 8) when the connector is plugged in, and are led through the inner chamber walling (90), and in that the guide bodies (43, 49) partially have at least one generated surface covered with a metallic shield (72, 74), which surface establishes an electrical contact with the metallic inner walling (90) of the chamber of the outlet housing (2, 3, 8).
6. Connector system according to one of the preceding claims, characterised in that a single connector (40) with two guide bodies (43) is provided for connection of a service with two pairs of wires (68) to the outlet (1).
7. Connector system according to one of the preceding claims, characterised in that two single connectors (40) with two guide bodies (43) each are provided for connection of two services with two pairs of wires (68) each to the outlet (1).
8. Connector system according to one of the preceding claims, characterised in that a double connector (48) with four guide bodies (49) is provided for connection of a service with four pairs of wires (76) to the outlet (1).
9. Connector system according to claim 5, characterised in that the connector is provided with two or four guide bodies (43, 49).
10. Connector system according to claim 5, characterised in that two connectors with two guide bodies each can be combined, with holding means, into a single connector with four guide bodies.
11. Connector system according to one of the claims 1 to 4, characterised in that the outlet is provided with led-out and prolonged connector contacts for direct mounting on a printed circuit board.
12. Connector system according to one of the claims 1 to 11, characterised in that it is provided in cabling inside buildings for transmission of signals with frequencies of up to 600 MHz and higher.

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