PL173010B1 - Electronic equipment connection apparatus - Google Patents

Abstract

A multiwire shielded cable (14) for a data network is for example pre-installed in the wall (45) of a building. The end of the cable (14) enters a housing part (66) and is coupled to a Western connector (10) or another connector having a similar design, whatever the connector system that will be later used. When the user-specific equipment is later installed, a modular housing (29) is inserted into the housing part (66). The modular housing (29) has an input tip jack compatible with the connector (10) and another tip jack on the side of the user which may be a jack of the Western type, an IBM data jack or a BNC jack (27). The connector (10) is provided with a metallic shield which directly contacts the shielding of the cable (14) and the metallic shield of the input tip jack, which in turn is electrically connected to the metallic modular housing (29). An easily adaptable data installation system is thus obtained, in which the area from the end of the cable to the user-specific tip jack (27) is very effectively protected against perturbing radiation.

Description

The present invention relates to a device for connecting electronic equipment to a pre-installed shielded multi-wire cable, used in particular in a data network.

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In a data network, the cable is pre-installed in a wall of the building, for example, and ends with a wall socket. Depending on the data network being installed, system-specific connectors must be installed in the wall socket and connected to a cable. There are connectors for different systems. In order to simplify the installation, a first universal half-connector is attached to the cable, which unifiesly fits each type of second half-connector of the adapter. Thus, the first half connector is installed immediately, no matter what data transmission system is installed later, it is only necessary to insert a connector adapter, the third half connector of which represents the desired socket type. Converting from one data transfer system to another is as easy as installing. Only the connector adapter needs to be replaced.

In the case of, for example, a data transmission system to be used, on the one hand, for telephone communication and, on the other hand, for computer applications, it is necessary to use different types of installation sockets (third half connectors) depending also on the system. to be used as typical for the company data.

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A device is known in which the first half-connector is permanently installed in an installation housing inserted in a wall socket (or in a cable conduit socket). The first half coupler has several (8) flexible tabs arranged in a row, adjacent to each other. Each tab is connected by a so-called self-insulating or piercing clamp. The insulation piercing terminals are connected to each other to form the insulation piercing terminal block. They enable electrical connections of the cable wires without the need to first strip the wires of the cable. However, they take up relatively much space. The second half-connector consists of several (eight) conductive paths located next to each other on the printed circuit board. This creates an edge strip in the form of a flat plug.

With known devices, there are problems in that electrical shielding in the transition zone between the cable and the second half-connector (conductive tracks on the PCB) is only possible when a large amount of metal is used for the installation housing. It has a very complicated structure due to the necessity to meet the requirements related to high-performance data transmission networks. The quality of the shielding is limited here due to the desire to achieve a large separation between the walls of the housing and the insulation piercing terminals and / or the conductive tracks on the first and second half connectors.

EP-A3-0224 200 describes a plug and a socket for a multi-wire cable provided with a screen to suppress the penetration of electromagnetic and radioelectric interferences, and with means for discharging electrostatic charges from the screen to the ground. The plug socket is designed to be mounted on a printed circuit board.

U.S. Patent No. 4,523-296 discloses a connector that includes an adapter that reduces wear on the interface caused by frequent joining and disconnection of individual portions of the connector. This transition connector comprises a socket and a plug mounted in separate non-conductive housings and corresponding to the socket and plug fixed in the devices to be connected. The socket and plug of the adapter connector are fixed on the printed circuit board through which they are electrically connected to each other.

The object of the invention is to provide a device that enables the improvement of electrical shielding. Besides, the aim is to simplify the manipulation during installation and to ensure easy installation of various types of data communication networks.

A device for connecting electronic equipment to a pre-installed shielded multi-conductor cable connected to a first multipolar half connector mated to a second half connector, including a first half connector which is a plug having a housing with axially parallel closely spaced one

173 010 plane in the direction of insertion of the plug through the channels into which insulated, unwired ends of the wires are inserted, and the contact plates are arranged in a row one by one, pressed into these channels from the side piercing the insulation of each of the wires, and forming terminals outside the housing of the first half-connector on side with respect to the insertion direction of the first half-connector, the flat side thereof, a significant part of the area of the rear casing with respect to the insertion direction of the first half-connector is closed by a cover partially covering the end of the cable and electrically connected to the cable jacket, and the second half-connector is a socket corresponding to the first half-connector and includes a substantially closed metal screen having direct electrical contact with the housing of the first half-connector in its position of insertion into the second half-connector according to the invention, characterized in that it comprises an adapter provided with a second half-connector on one side and a third half-connector on the other hand e, with electrically connected contacts through a printed circuit board, which, together with the second half-connector and the third half-connector, is placed in a hollow cuboidal module casing, the drimip being accessible from the rear open side. nńi7lar.7e ,. u 7 nrzpriwnei πγ7Ρ.Ητηρ.ϊ. ntwarte.i stmnv ip.st rinstenne τγ7ρρϊρ nobzlaree and the module sheath are in direct electrical contact with the metal screen of the other half-connector.

Preferably, several elastically deformable convex ridges are disposed on the inner surface of the module shell in contact with the metal shield of the second half-connector.

Preferably, a plurality of convex ridges are in contact with the metal portion of the third semi-joint.

Preferably, the module cover is snapped onto the substantially disc-shaped support frame such that the front open side is proximate the edge and the rear open side is approximately centered on the disk, the support frame being provided with a flat base plate.

Preferably, the longitudinal axis of the hollow cuboidal module shell is inclined at a slight inclination angle with respect to the plane of the disc so that the lower edge of the rear open surface is closer to the axis of the disc than the lower edge of the front open surface.

Preferably, the angle of inclination is between 10 and 20 degrees.

Preferably approximately parallel to the longitudinal axis, at least one rearwardly projecting first projection is formed at the lower edge of the rear open surface of the module cover, and at the lower edge of the front open surface there is at least one downwardly projecting second projection. a projection, the free end of the second projection being provided with a forward facing hook tooth parallel to the longitudinal axis.

Preferably, the support frame is provided with a support surface on which the module cover rests extending from the edge close to the center, and on the inner edge of the support surface there is at least one U-shaped strip under which the first projection is led, and near the outer edge. there is at least one opening for receiving the second projection, the engagement tooth extending under the support surface through the opening with the elastically flared lower front edge.

Preferably, a cover portion is snapped onto the support frame, the cover portion being provided with four walls of equal height, each surrounding the support frame extending steeply upward from the base plate of the support frame.

Preferably, the frame cover part is articulated to the area of the rear of the cover part provided with a covering surface, two side surfaces arranged on opposite side edges, a front surface and a rear surface, and the side surfaces of the cover part are approximately triangular in shape so that the covering surface is inclined. is with respect to the plane of the base, in a position of contact and alignment of the walls forming the frame of the cover part, and the side and front surfaces of the cover part.

Preferably, the rectangular front face of the lid portion is provided with a first cutout.

Preferably, the frame wall of the cover portion is provided with a second circular cutout adjacent the front surface of the cover portion, which together with the first cutout forms a resultant cutout.

Preferably, the support frame is fixed to the wall with its base plate, and that the support frame, with the module cover snap-fitted thereto, is closed with a frame cover part and a cover part, the third half connection being accessible for a fourth half-connection to be mated therewith by first and second excision, possibly by accidental excision.

Preferably, the device comprises several differently equipped modular housings, the second half connectors being identical and the third half connectors being different.

Preferably on one side in the modular housing together with the other common. .. ernł-ι f + +070 o £ Λ Q

Łuumuiiwnunc unu Preferably, the support frame is provided with two module shells arranged in parallel with small spaces adjacent to each other, the support frame being an electrical insulator.

Preferably, the device comprises a plurality of U-shaped slats and openings with optionally installable module covers in a central position possibly in one of two lateral positions symmetrical with respect to the first position, or two module covers, one in each side position, are installed.

An advantage of the invention is that the connector takes up less space in the exit area, i.e. in the socket, which usually has to be installed there. In this case, cable manipulation is greatly simplified. In addition, the electrical shielding in the exit zone from the cable to the second half-connector (or socket) is realized in the immediate vicinity of the hot paths, which means excellent protection against interference.

The transition zone to the third half-connector is also shielded here, and the modular housing is only exposed after a new module has been installed. Thus, it is also possible to provide various plug adapters with specially adapted modular shields, differing from each other by the type of the third half-connector, ensuring an optimization of the shielding.

Due to the use of convex ridges on the surface of the module cover, a secure connection is achieved between it and the metal screen.

In addition, the insulation and spacing of the shields ensure that no undesirable grounding will occur between them. Depending on the needs, two identical modular covers (with two identical third half connectors) or two different modular covers can be used.

In this way, flexibility and easy adaptability to different data transmission systems are ensured.

The subject of the invention in an exemplary embodiment is shown in the drawing, in which Fig. 1 shows the first half-connector in a plan view on its flat surface with contact plates, Fig. 2 - the flat surface of the mating second half-connector facing the printed circuit board, in a corresponding view from top, fig. 3 is a view according to fig. 1, in the direction of the arrow 3 ', fig. 4 - a view according to fig. 2, in the direction of the arrow 4', fig. 5 - a support frame with a BNC modular cover in a top view; Fig. 6 is a section taken along line 6-6 of Fig. 5, Fig. 7 is a support frame according to Fig. 5 with the shell part placed on top of it, with the cover part removed, in a top view, Fig. 8 is a section taken along a line. 8-8 of Fig. 7, in which the structure of the cover portion is shown with cut lines.

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The first half-connector 10 is a plug and is provided with a cuboid-like housing 11 with several parallel-axis channels 12 into which the ends 13 of the insulated cable 14 are inserted at different directions. the channels 15. The plates 16 on the one hand pierce the conductor insulation with their cutting ends 17 on the inside, and on the other hand constitute the terminals 19 of the plug being the first half-connector 10 (Fig. 3) in the foremost part of the flat surface 18 of the plug housing 11. In Fig. 1, for the sake of clarity, only five contact plates 16 are shown, whereas eight are standardly used.

A significant part of the housing of the rear plug cover 11 (the rear one relates to the direction of plug insertion) is covered with a cover 21 constituting a metal shield. The end portion of the shield 21 of the metal shield is folded to form a rim 22 and grips the shield 20 of the cable 14 which extends through it and is exposed therein. The second half-connector according to Fig. 2 is a socket 23, the housing of which is shielded to a large extent by a metal screen 24. The metal shield panels 24 bent towards the inside are not shown, ensuring contact with the metal shield 21 of the plug upon insertion. Thus, if the plug being the first half-connector 10 is inserted into the socket constituting the second half-connector 23, the terminals 19 of the plug 10 make contact with the contact plates 25 arranged inside the second half-connector 23 (socket), and the entire network leading the cable 14 to these contact plates 26 it is effectively protected by a tightly surrounding metal screen.

The second half-connector 23 shown in FIG. 4 is arranged on a printed circuit board 26, the shape of which in FIG. 2 is only shown with dashed lines. The third half-connector 27 is also placed on the printed circuit board 26. The necessary electrical connection of the contact plates 25 with the corresponding ends of the third half-connector 27 in each case takes place via the conductive tracks of the printed circuit board 26. The printed circuit board 26 constitutes an adapter 28 for the second half-connector 23 (a plug socket). ), and the third half-connector 27. The individual plug adapters 28 differ from each other only by the third half-connector 27.

The plug-in adapter 28 is disposed in at least a substantially hollow rectangular metal modular shell with an approximately U-shaped cross section, with a bottom wall 31, two opposing side walls 32 and two opposing faces 33, 34. The end walls 33, 34 are provided with openings allowing access on one side to the second half-connector 23 (socket) and on the other to the third half-connector 27 (socket). The edges of these holes are bent inwards, thus preventing the penetration of interfering fields. The top cover of the module cover 29 is a metal cover plate 35 guided, for example, in the groove guides 36 of the side walls 32. Several semicircular ridges 37 are stamped on the cover plate 35, resiliently pressing the metal screen 24 of the second half-connector 23 (socket) and the metal body of the third half-connector. 27 (slots). Similar ridges are also formed on the side walls 32. In this way, a correct electrical contact connection is ensured between the module casing 29 and the adapter 28.

In order to keep the representation clear, the contour of the module cover 29 is shown in Fig. 2 only in broken lines. Fig. 4 shows a relatively large free space in the module shell 29 below the PCB 26. It follows that the third half-connector 27 (socket) described here is of low height, and the overall internal dimension of the module shell 29 is intended to accommodate the largest half-connectors used. . For this reason, the opening in the front wall 34 is much wider, but for smaller half-connectors it is obscured by breakouts as needed along the line of weakness by wall segments. Since the module shell 29 is produced in a somewhat costly manner by die casting, it is much cheaper to manufacture only one type of module shell 29.

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In the lower left corner (according to Fig. 4) there is a first projection 38 projecting rearward parallel to the longitudinal axis of the module shell 29. It projects from the head wall 33 in the form of a head. The second identically shaped protrusion is not visible in Fig. 4 because it is covered by the protrusion 38. The front wall 34 has a step 39 at its junction with the bottom wall 31 to act as a catch for the prying tool when removing the module cover 29 from the mount. Together with this step 39, a second protrusion 41 is formed, extending downwards at right angles to the longitudinal axis, on the bottom wall 31. The second protrusion 41 at its free end remote from the bottom wall 31 is provided with a forward engaging tooth 42 ( towards the front wall 34) approximately parallel to the longitudinal axis. The bottom wall 31 is provided with a second identical projection, not visible in Fig. 4.

Figures 5 and 6 show a roughly plate support frame 43 with a flat surface of a base plate 44 with which support frame 43 is mounted on a wall 45 of a cable duct or building so that it covers an opening 46 in wall 45. Wall 45 in Figure 6 is shown in dashed lines for guidance only. The outline of the support frame 43 in plan view as shown in Fig. 5 is square with rounded corners. In the central area, the frame is provided with an opening 47 which covers a large part of the surface. The wall receptacle 48 extends perpendicularly from the base plate 44 around the opening 47 and is U-shaped when viewed from above. It serves to stiffen the support frame 43 and further includes detent recesses 52 and 53 on the opposite outer walls 49 and 51.

Between the ends of the legs U of the wall socket 48, there is a support surface 54 extending approximately from the right edge beyond the center of the support frame 43. In the transverse direction, it covers almost the entire width of the support frame. The upper side of the support surface 54 in the illustrated example of Fig. 6 is inclined at an angle of approximately 12 degrees with respect to the plane of the base plate 44. Of course, angles of between 10 and 20 degrees may be used. A bar 56 extending perpendicularly thereto is formed on the inner edge of the support surface 54. It is provided with four cutouts 57, 58, 59, 61 equally spaced in the longitudinal direction. It is embraced by the first protrusions 38 of the cover 29 of the module. The section according to Fig. 6 does not exactly correspond to the line in Fig. 5, insofar as the cutout 57 is not to be seen in the section. As a result of the aforementioned opening 47, the bar 56 is U-shaped. Near the edge 55 there are four openings 62, 63, 64, 65 formed in the support surface 54 also equidistantly spaced. The aforementioned second protrusions 41 engage and engage with catch teeth 42 underneath the support surface 54. Since the support frame 43 is made of plastic, the edge opposite the metal catch teeth 42 is resiliently subjected to snap fit and detachment of the module shell 29. In Figs. 5 and 6, the module cover 29 is marked at one of three snap-fit positions. Due to the equality of the distance between the cutouts 57-61 and the holes 62-65, the module cover 29 can be positioned as well in its central position as it is in any of the two lateral positions. It is also possible to fit two module covers 29 in these two lateral positions. The module shell 29 is released from the snap engagement using a similar fulcrum point as the fulcrum point for the lever between the step 39 and the support surface 54.

Figures 7 and 8 show a frame-like cover portion 66 that slides over a support frame 43. The cover portion 66 has four frame walls 67, 68, 69, and 71, each extending perpendicularly from the base plate 44, all of them extending perpendicularly from the base plate 44. are of equal height, for example 2.5 cm. The bridges 72 and 73 extend from opposite sides of the inner walls 67 and 69 of the skirt portion 66 each

173,010 of their inner edges 74,75 engage in the catch recesses 52,54 shown in Fig. 5 for the attachment of the cover portion 66 after it has been positioned on the support frame 43.

In Fig. 8, the dashed lines indicate the cover part 76, which matches the cover part 66 and closes it. It has a cover surface 77, two opposing approximately triangular-shaped side surfaces 78, a front surface 79 and a residual rear surface 81 in the form of a section of the side surface of the cylinder, extending concentrically with the axis of rotation, on which is supported cover portion 76, rotating relative to the portion. cover 66. From cover portion 66 extend two hook members 82, 83 having facing pins 84, 85 engaging corresponding openings in struts (not shown in detail) in a corner area of cover surface 76 and rear surface 81 to form articulations. Another resilient hook element 86 is formed on the inner edge of the frame wall 81, which presses against a catch (also not shown in detail) in the corner area of the rear face 81, thereby biasing the lid portion 76 in the closed position.

From Fig. 8, it can be seen that the inclination of the modular sheath 29 of the cable 14 reduces its curvature. This reduces the mechanical stress on the cable 14 in the plug 10. In the rectangular front face 79 of the cover part 76, the first cutout 87 of the outer edge is the one through which the third half-connector 27 is accessible, even with the cover part 76 closed. it also exposes the second cutout on the outer edge of the frame wall 68. This is achieved by breaking the wall element along predetermined score lines. Both cutouts fit to each other, creating one common rectangular or oval result cutout.

Claims (17)

Patent replacement 1.A device for connecting electronic equipment to a pre-installed shielded multi-conductor cable connected to a first multipolar half connector mated to a second half connector, including a first half connector which is a plug having a housing with axially parallel closely aligned one plane in the insertion direction of the plug, into which insulated, unwired ends of the wires are inserted, and the contact plates are arranged in a row one by one, pressed into these channels from the side piercing the insulation of each of the wires, and forming terminals outside the housing of the first half-connector on the front with respect to the insertion direction of the first half-connector, flat its side, with a significant part of the area of the rear casing, in relation to the insertion direction of the first half-connector, is closed by a cover partially covering the end of the cable and electrically connected directly to the cable sheath, and the second half-connector is a socket corresponding to the first half-connector and a cover largely closed with a metal screen having direct electrical contact with the cover of the first half-connector in its position of insertion into the second half-connector, characterized in that it includes an adapter (28) provided on one side with the second half-connector (23), and on the other side with a third half-connector (27), with electrically connected contacts through a printed circuit board (26), which, together with the second half-connector (23) and the third half-connector (27), is placed in a hollow, rectangular casing (29) of the module, with the rear open the second half connector (23) is accessible from the opposite front open side, a third half connector (27) is accessible, and the module casing (29) is in direct electrical contact with the metal shield (24) of the other half connector (23). 2. The device according to claim A device as claimed in claim 1, characterized in that a plurality of elastically deformable convex ridges (37) are disposed on the inner surface of the module shell (29) in contact with the metal shield (24) of the second half-connector (23), 3. The device according to claim 1 A device as claimed in claim 2, characterized in that several convex ridges (37) are in contact with a metal portion of the third half-connector (27). 4. The device according to claim 1 The apparatus of claim 1, characterized in that the module cover (29) snaps onto the substantially disc support frame (43), such that the front open side is proximate the edge (55) and the rear open side is approximately centered on the center of the frame (43). a disc, the support frame (43) being provided with a flat base plate (44). 5. The device according to claim 1 4. The device of claim 4, characterized in that the longitudinal axis of the hollow cuboidal shell (29) of the module is inclined at a slight inclination angle with respect to the plane of the disc, such that the lower edge of the rear open surface is closer to the axis of the disc than the lower edge of the front open surface. 6. The device according to claim 1 5. A method according to claim 5, characterized in that the angle of inclination is between 10 and 20 degrees. 7. The device according to claim 1 5. The process of claim 5, characterized in that at least one rearwardly projecting first projection (38) is formed at the lower edge of the rear open surface of the module shell (29) approximately parallel to the longitudinal axis, and at the lower edge of the front open surface is formed at an angle perpendicular to the longitudinal axis, at least one downwardly projecting second projection (41), the free end of the second projection (41) being provided with a forward engaging tooth (42) parallel to the longitudinal axis. 8. The device according to claim 1 4. A device as claimed in claim 4, characterized in that the support frame (43) is provided with a support surface (54) on which the module cover (29) rests, extending away from the 173 010 from the edge (55) near the center and on the inner edge of this support surface (54) at least one U-shaped strip (56) under which the first projection (38) is led, and near the outer edge (55) ) there is at least one opening (62, 63, 64, 65) for receiving the second projection (41), a catch tooth (42) passing under the support surface (54) through the opening with the elastically flared lower front edge. 9. The device according to claim 1 A cover part (66) is snapped onto the support frame (43), the cover part (66) being provided with four walls (67, 68, 69, 71) of equal height, each surrounding the frame. (43) extends steeply upward from the base plate (44) of the support frame (43). 10. The device according to claim 1 The closure part of claim 9, characterized in that the frame cover portion (66) is articulated to an area of the rear surface (81) of the cover portion (76) provided with a cover surface (77), two side surfaces (78) disposed on opposite side edges, the front surface (79) and a rear face (81), and the side surfaces of the lid portion (76) are approximately triangular in shape so that the covering surface (77) is inclined with respect to the plane of the base in the contact and alignment position of the walls (67, 68, 69, 71) forming the bezel of the shell portion (66) and the side surfaces (78) and front (79) of the cover portion (76). 11. The device according to claim 1 10. The device of claim 10, characterized in that the rectangular front face (79) of the cover portion (76) is provided with a first cutout (87). 12. The device according to claim 1, A recess as claimed in claim 11, characterized in that the frame wall (68) of the skirt portion (66) is provided with a second circular cutout adjacent the front surface (79) of the cover portion (76) which together with the first cutout (87) constitute an accidental cutout. 13. The device according to claim 1, A support frame according to claim 11 or 12, characterized in that the support frame (43) is attached to the wall (45) with its base plate (44), and that the support frame (43) with the module cover (29) snap-fitted thereto is closed by a shell-frame portion (66) and a cover portion (76), the third half-connector (27) being accessible to a mating fourth half-connector through a first (87), second (87) cut-out, possibly through an accidental cut-out. 14. The device according to claim 1 A device according to claim 1, characterized in that it comprises several differently equipped modular housings, the second half connectors (23) being identical and the third half connectors being different. The device according to claim 1, The apparatus of claim 1, characterized in that on one side of the modular housing together with the second half-connector (23), two-thirds of the half-connector (87) are installed. 16. The device according to claim 1, A device as claimed in claim 4, characterized in that the support frame (43) is provided with two module shells (29) arranged in parallel, closely spaced adjacent to each other, the support frame (43) being an electrical insulator. 17. The device according to claim 1 8 or 17, characterized in that it comprises several U-shaped slats (56) and openings with optionally installed module covers (29) in a central position, possibly in one of two lateral positions, symmetrical with respect to the first position, or two covers are installed (29) of the module, one in each side position.