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

The present invention relates to a multipolar connector system with an outlet and at least one connector for electrically and mechanically connecting electrical conductors.

In particular, the inventive connector system for building cabling Class E is provided. The class specifies the transmission quality of electrical signals of all transmission lines or transmission systems from one endpoint to another endpoint. In relevant standards, such as EN 50173, limit values ​​for the maximum attenuation of the crosstalk, for reflections, etc., and for the maximum frequencies are set, for example. For class E and future classes is intended to operate at frequencies up to 600 MHz and more.

It is the trend of technological progress, create building cabling in future no longer separately for phone, for computer equipment, video equipment, etc., but merely to provide a single building wiring network over which transmitted the information and data from all the services in question will. A beginning has been made to ISDN (Integrated Service Digital Network).

For generic cabling for the above purposes usually shielded cables are provided with eight cores or four pairs, each with two twisted wires. However, a maximum of four lines or two pairs of wires are required for each service. With today preferably used connector system which has become known under the designation RJ 45, more than a plug for a single service can be plugged into an electrical outlet. If two services required at a workplace, so two outlets must be installed side by side. This is a fairly complicated work because nowadays most workplaces more than a single service is required.

In addition, it has been found that the aforesaid electrical transmission parameters in the connector systems of the type RJ 45 are not suitable at frequencies of about 300 MHz and desirable sizes can be hardly achieved. This is due to the internal connection technology usually cutting / clamping terminals, the wires inside the socket or plug this connector system are often performed angled. Furthermore it is known that when the connector system RJ 45 which shields the individual pairs are not led directly to the plug contacts or can be performed.

It is the object of the present invention to provide a compared to the prior art cited improved connector system. In particular, is to ensure that at a single outlet not only a service can be removed.

Another object of the present invention is to improve the electrical transmission parameters relative to the known connector system of the type RJ 45 and to allow transmission frequencies up to 600 MHz and higher. An additional objective is to provide for the management of the shield of the connector system, that is, within the socket and within the plug an improvement.

The object is achieved with a multi-pin connector system with an outlet and at least one connector for electrically and mechanically connecting electrical conductors in that the outlet comprises a socket housing, the sides having a metal surface that the socket housing in a plurality of individually outwardly open chambers is divided, wherein in each of the chambers at least a first, externally accessible plug contact is arranged, that the plug comprises a plug housing, the sides having a metal surface, said at least one second is arranged externally accessible plug contact in the plug housing, and that for each of at least one chamber a plug is inserted into the chamber of the outlet, wherein the connecting at least one first and the at least one second plug contact.

Special embodiments and solutions for these other tasks are included in the features of the dependent claims.

The following describes their use with reference to the accompanying drawings and embodiments. Show it<ul><li>Fig. 1 is a perspective exploded view of the socket,</li><li>FIG. 2 is an exploded perspective view of the jack with the cable connected,</li><li>FIG. 3 is a perspective view of the outlet in front view,</li><li>Fig. 4 is a perspective view of the socket in rear view</li><li>Fig. 5 is an exploded perspective view of the jack in front view,</li><li>Fig. 6 is a perspective view of the single connector in front view,</li><li>Fig. 7 is a perspective view of the double connector in front view,</li><li>Fig. 8 is an exploded perspective view of the single connector,</li><li>FIG. 9 is an exploded perspective view of the single connector with cable connected,</li><li>FIG. 10 is an exploded perspective view of the dual-pin plug with the cable connected.</li></ul>

In the FIG. 1 shows an embodiment of an inventive power outlet 1 is shown. In the exploded perspective view of FIG. 1 is the outlet that is comprises of a two-part socket housing 2, 3, shown without the cable and in the open state. The two-piece housing consists of a base part 2 and a cover 3 that snaps into place on the base part in this at touchdown. To this end, substantially at the base part on the longitudinal sides a locking rib on the cover 4 and a respective resilient locking lance 5 provided executed. When replacing the cover 3 on the base part 2, the locking lances raced over the catching ribs, whereby the cover is held on the base part.

The two parts of the socket housing 2, 3 are preferably made of plastic. In particular, they are produced as injection molded parts from a thermoplastic plastics material. The two parts of the socket housing are covered on all sides with a metal layer. The coating is created in a known manner with a galvanic process. A first coating comprises a layer of copper, which conducts electricity well, and as described later, is intended for the electrical connection of a screen of an inserted into the socket cable with a arranged on the outlet port side of the mass or ground terminal 6. 7 The copper layer shields simultaneously from the outlet interior from electromagnetic fields. Over the copper layer an imaginary especially as corrosion protection nickel layer is applied.

In the interior of the socket housing, in the base part 2, a module is loaded with plug 8 poles. The module 8 comprises a plug 9, in which the outlet terminals are accessible and come into electrical connection upon insertion of a corresponding plug mating piece with the plug sockets of the latter. The plug system is associated with the Class E, that is capable of transmitting frequencies up to 600 MHz and more. The connector system is designed for cable type S / STP category. 6

Subsequent to the one facing to the connector cables to be joined end face 10 of the base part 2, in which the cable inlet aperture 11 is located, a semicircular groove 12 is provided, which extends perpendicular to the connector longitudinal axis. A similar semi-circular groove 13 is then provided on the one with the outlet facing cables to be joined end face 14 in the cover 3rd In an attached cover 3 on the base part 2 of the socket housing, the groove 12, 13 is circular. used in this groove is a ring 15, which serves for electrically connecting the screen of a cable to the mass or ground terminal 6, 7th The ring 15 is preferably, like the other parts of the socket, from a metallized plastic. It is essential that the designated 16 outer circumferential surface of the ring 15 is a good electrical conductor. In the case of a plastic ring, this may, for example, with a metal coating, similar to such a described above, can be achieved. The groove 2, 3 is dimensioned so that the ring slightly both in its longitudinal axis and in the direction of its diameter has game.

The module 8 is provided with four plastic inserts 17, each having two parallel to the longitudinal axis of the base portion disposed cylindrical through holes 18, come to rest in which plug pins. Connected to the module is a vertical partition 19 and a horizontal partition 20, between which each pair shielded wires of the connecting cable comes to rest.

In Fig. 2 is also an exploded perspective view of the socket, but shown with the cable connected. The cable 21, which is to be connected to the socket, includes multiple wires 22, 23, in the example shown eight wires, the twisted pairs run within a cable jacket 24th The two twisted wires are screened by an internal shield 25th An outer shield 26 has an all cores total of enclosing layer of wire mesh. For connecting the socket 1 to the cable 21 the jacket 24 is removed from the cable in one end. From Mantle end thereof the twisted wires are exposed to the inner shield. The ring 15 has been previously pushed through the jacket will now be arranged such that it comes to lie in the region of the sheath end, wherein the wire mesh of the outer screen 26 is laid over the outer lateral surface 16 of the ring 15th The outer circumferential surface 16 of the ring 15 should be covered evenly as possible over the entire circumference of the ring from the wire of the outer shield 26th The ring 15 is located with the above inverted wire of the outer shield 26 in the groove 12 of the base part 2. The game of the groove to the ring is such that just enough space left to accommodate the screen. In an attached cover 3, the ring 15 then together with the over its outer lateral surface 16 everted outer shield 26 of the cable 21 in the circumferential groove 12, 13. The shield 26 is located over the entire periphery of the groove distributed at the end faces and the circumferential surface of the groove 12, 13 at. The metal coating of the socket housing 2, 3 acts as a contact element or electrical contact path for establishing an electrical connection between the ring 15, the screen 26 and the plug housing 2, 3, in particular the connection tongues 6, 7, that of the ground or ground connections on outside of the cover 3 are arranged. By the groove 12, 13 of the ring 15 is held stationary with respect to the longitudinal axis of the socket. The groove acts as a stop member for the ring. Thus, the groove does not only produce an electrical contact between the shield and the connector contacts 6, 7, but is together with the ring responsible for the cable strain relief 21st The cylindrically executed ground connections 6, 7 are provided for accommodating connectors, in particular round sleeves 27, are connected to the earth or ground wires 28th Furthermore, an insert part 29 is provided in the base part or that produces 30 and 31, the contact between the inner shield 25 of the cores 22, 23 and the base part 2 with two tabs.

In Fig. 3 the socket is shown in perspective view. The module 8 of the outlet has four chambers 32, 33, 34 and 35, wherein each chamber has a pair of pairs shielded cable 21 can be accommodated. two pins 36 are each chamber of the module 8, as will be described below, is mounted. The inner chamber walls 90 serve for making contact with the plug.

In Fig. 4, the outlet is shown in a perspective view seen from the rear.

In Fig. 5 is a perspective exploded view of the socket from the front side is shown seen. In the four chambers 32, 33, 34 and 35 of the module 8 four plastic inserts 17 are inserted. The plastic inserts have on a diagonal each two through holes 18th In the through holes 18 connector pins 36 are inserted, on their rear side, the eight wires of the cable are connected. The arrangement of the two contact pins in the four chambers is such that a polarity reversal protection is achieved at the same time. The connector of a service can only be inserted in one position. The insert part 29 is used on one hand for the production of contact of the inner shields to the housing, on the other hand for locking the module 8 in the base part 2. This locking is done by a step 37 in the bottom 38 of the insert 29 engages In the composite socket, a recess in the lower edge of the vertical partition 19 into a cam 39 on the insert part 29th

Fig. 6 shows in perspective view a single connector, where the sockets are placed 88th The connector 40 is suitable for connection of a service. It comprises a lid 41 and a T-shaped part 42 which serves as a ground. The cover 41 and the bottom 42 form the housing. The guide body 43, which extend through the plug therethrough are provided with through holes 44, which lie on a diagonal and where the sockets are placed 88th The diagonals on the two guide bodies 43, on which the holes are 44, are parallel. At the rear end of the lid has a groove 45 and two cams 46 are provided for holding a kink protection for cable 47th The portions of the single and double connector are preferably manufactured from plastic. In particular, they are produced as injection molded parts from a thermoplastic plastics material and covered on all sides with a metal layer and for the rest equal prepared as the parts of the socket.

In Fig. 7 is a double plug 48 is shown in a perspective view, which is suitable to the wall outlet for a service with four pairs. The connector has four guide bodies 49 which correspond to those of the single connector. The through holes 50 are also arranged on a diagonal, the diagonal on which the through-holes are, are the top two guide elements and the lower two guide elements perpendicular to each other. In the through holes 50 jacks 89 are arranged. Between the two identically constructed lids 51 and 52 of the plug, a double T-shaped central piece 53 is arranged. In the back of the connector are two slots 54 and four cams 55 for mounting a kink protection for the cable.

In FIG. 8, the single connector 40 is shown in an exploded perspective view. The bottom 42 has a central web 70 and on either side of this web disposed bolt 71. A circular groove 56 in the rear end of the base 42 serves to receive a ring 57. In the rear part of the plug 43 lugs 58 are attached to the guide bodies, which are also provided with through-holes 59th The tabs 58 are connected to can not be seen from this figure pin with the guide bodies 43rd The bottom 42 of the plug is provided on either side of the central web 70 with strips 60 which hold the guide body 43rd The lid 41 is provided with a semi-circular groove 61 for receiving the ring 57th A holder 62 with a bend protection 63 is fixed in the groove 45 of the lid 41, which recesses 64 engage the holder 62 in the space provided on the cover cams 46th

In Fig. 9 the single connector is shown with connected cable 65 in an exploded perspective view. The guide bodies 43 are provided with beryllium bronze 72 which, has 42 contact with the housing 41 and performs the function of a screen for projecting beyond the housing parts of the guide body 43rd The cable 65 is provided at its outer insulating jacket 66 with an outer shield 67th The screen 67 consists of a wire mesh. Before connecting the cable to the connector part of the shell 66 of the outer shield 67 is removed. The shell over the projecting portion of screen 67 is placed over the ring 57, whereby a contact of the outer shield with the housing 41, 42 is produced. The housing and the ring 57 are metallized as in the outlet. Two cores 68 of the cable are twisted together and provided with an inner shield 69th The inner shield 69 is in each case clamped between the central web 70 and a bolt 71, so that contact of the inner screen 69 to the housing 41, 42 is produced.

In Fig. 10 an exploded perspective view of the dual-pin plug is shown with the cable connected. The connector corresponds to that according to FIG. 7. The center piece 53 has webs 73 two downwardly and upwardly projecting on. There are provided four guide bodies 49 which are arranged on either side of the central piece 53rd The guide bodies 49 are also provided with Berylliumbronzefolien 74 so that the protruding through the housing 51, 52, parts of the guide body 49 are shielded. Also here lugs 75 are fitted with non-visible from this figure bolts on the guide body. In the guide bodies 49 in each case two bushings 89 are disposed in the through holes 50th In the extensions 75, the exposed conductors 76 of the cable 77 are guided. The wires 78 are each clamped to the inner screens between a bolt 79 and the center web 73 in order to achieve a good contact to the housing 51, 52nd The cable 77 is basically the same design as the cable 65 shown in FIG. 9, with the difference that four twisted pairs are present. Each pair 76, 76 has an inner shield 78 with all four pairs are covered by an outer shield 84th Outermost is the insulating sheath 80. In the cover parts 51 and 52 each is a semi-circular groove 81 and 82 admitted, in which two grooves is admitted an annular plate 83rd The braid 84 of denuded external screen is placed around the plate 83, to make contact between the outer screen 84 and the housing 51, 52nd Approaches 85 in the upper cover part 51 and lugs 86 in the lower cover part 51 engage during assembly of the plug in slots 87 a centerpiece in 53rd

According to the inventive connector system optionally one or two services can be turned on, whereby each service two or four pairs of eight-core cable, the socket can be used. For one or two services with two pairs, one or two single-plug 40 and used for a service with four pairs a double plug 48th According to the inventive connector system grounding is carried out continuously. A whole through the outlet or plug all performed shield prevents incidental or crosstalk at high frequencies. The connector system is designed as a four-chamber system with four metallized chambers 32, 33, 34, 35, wherein each chamber has a pair of wires 22, 23, 68, 76 of the pairs shielded cable can be received. By this construction and by the audit conducted grounding the connector system is EMC-proof. Because of the high frequencies, the connection system is designed radially with tulips contacts. It is thereby a straight passage of the conductor achieved by the connector system, which has a favorable effect on the damping. In the connector socket 1, the plug pins are opposite to the commonly used standard 36 and arranged in the connector 40, 48, the sockets 88, 89 are housed. This reversed arrangement a better protection of the contact pins is achieved. The arrangement of the two contact pins in the four chambers on a diagonal is such that at the same time a reverse voltage protection is achieved. The connector of a service can only be inserted in one position.