HK1073182B - Distribution connecting module - Google Patents

Description

Distributor wiring assembly

Technical Field

The invention relates to a distributor connection assembly for telecommunications and data technology. The distributor terminal assembly comprises a housing, in which input and output contacts accessible from the outside are arranged for connecting wires and cable conductors, wherein the housing has a cavity, in which at least one circuit board is arranged, wherein the input contacts form at least one terminal strip having a disconnection clamping contact (41), wherein the input and output contacts are detachably connected to the circuit board, wherein the terminal strip supporting the output contact is detachably connected to the housing via a front part, wherein the disconnection clamping contact is connected to the circuit board via a fork contact, and wherein the connection between the front part and the housing is designed such that, when the connection is disconnected, the terminal strip connected to the front part is separated from the circuit board together with the fork contact.

Background

Distributor terminal assemblies for telecommunications and data technology are used, for example, in main distributors or distribution distributors for connecting and exchanging incoming and outgoing cable conductors.

A distributor connection assembly for telecommunications and data technology is known from DE 10029649a1 and comprises a housing in which input and output contacts that are accessible from the outside are arranged for connecting wires or cable conductors, wherein the housing has a cavity in which functional elements are arranged between the input contacts and the output contacts. The input and output contacts are mounted on opposite end faces of the housing. The functional components are mounted on at least one printed circuit board, which is supported within the housing. The input contacts are break-off clamping contacts (Schneid-klemm-Kontakte), wherein the output contacts are likewise break-off clamping contacts or electrical connectors. The disconnection-clamping contact is preferably formed by a fork contact, with which the electrical connection of the force-transmitting connection can be formed as a functional element. It has therefore been proposed to replace defective circuit boards, in which the fork contacts are removed from the circuit board. A disadvantage of the known embodiment is that these removal processes are very difficult, since the fork contact is in force-fitting connection with the circuit board. In addition, the core wire should be removed when it is removed and reconnected after replacement.

A distributor terminal assembly for telecommunications and data technology of the above-mentioned type is known from WO 01/97339a1, comprising a housing, in which input and output contacts accessible from the outside are arranged for connecting wires and cable cores, wherein the housing has a cavity in which at least one circuit board is arranged, wherein the input contacts form at least one terminal strip with a disconnection clamping contact, wherein the input terminal contact and the output terminal contact are detachably connected to the circuit board, wherein the terminal plate supporting the output terminal contact is detachably connected to the housing through the front portion, wherein the breaking clamping contact is connected to the circuit board via a fork contact, and the connection between the front part and the housing is formed in such a way, when the connection is detached, the terminal plate connected to the front part is separated from the circuit board together with the forked contact. In this case, the front portion is locked with the housing.

DE 20120690U 1 discloses a printed circuit board terminal block, comprising a terminal housing made of insulating material, which can be connected in series, a connecting device arranged in the terminal housing for connecting external lines, a busbar arranged in the terminal housing, which has terminals formed or mounted thereon for connecting corresponding terminals of the printed circuit board, wherein the terminal housing has a recess for accommodating the printed circuit board, which has a shape adapted to the contour of the printed circuit board, and the terminals on the busbar and the terminals on the printed circuit board can be designed in an insertable manner. On the busbar, fork-shaped contacts for contacting the contact area are arranged on the circuit board, which engage the circuit board on both sides in the edge area thereof.

Connection modules are known from EP 0661777 a1 and US-3,662,321, where the components are fixed to one another by screw connections.

A pluggable cable guide is known from US-4,566,660.

Disclosure of Invention

The object of the invention is to provide a distributor connection arrangement for telecommunications and data technology, with which the printed circuit board can be easily replaced.

The solution to this technical problem is achieved by a distributor connection assembly. The distributor terminal assembly comprises a housing, in which input and output contacts accessible from the outside are arranged for connecting wires and cable conductors, wherein the housing has a cavity, in which at least one circuit board is arranged, wherein the input contacts form at least one terminal strip having a disconnection clamping contact (41), wherein the input and output contacts are detachably connected to the circuit board, wherein the terminal strip supporting the output contact is detachably connected to the housing via a front part, wherein the disconnection clamping contact is connected to the circuit board via a fork contact, and wherein the connection between the front part and the housing is designed such that, when the connection is disconnected, the terminal strip connected to the front part is separated from the circuit board together with the fork contact.

According to the invention, the input contact and the output contact are mounted on opposite end faces of a housing, which has a stop, wherein the circuit board rests with its end face corresponding to the input contact behind the stop in the mounted state.

Further preferred embodiments of the invention are given below.

The input and output contacts are detachably connected to the circuit board, wherein the terminal strip supporting the input contacts is detachably connected to the housing via a front part, and the disconnection clamping contacts are connected to the circuit board via fork contacts, and the connection between the front part and the housing is designed in such a way that the terminal strip connected to the front part is separated from the circuit board together with the fork contacts during the disconnection. The forces necessary for producing and releasing the force-transmitting connection between the circuit board and the fork contact are thus transmitted via the connection between the front part and the housing. However, these connections can be produced or released very easily by tools in the embodiment. A further advantage is that the transmission of force is also symmetrical and uniform over the terminal block in a symmetrical connection between the front part and the housing. The distributor terminal assembly can be universally adopted by a simple process of replaceability of the circuit board. But also its application can be arbitrarily changed and expanded. It is possible to first serve as a Splitter (Splitter) for separating the speech and data services for ADSL use and then, if necessary, to replace a VDSL application if the customer later wishes. The circuit board can likewise be modified by a suitable layout of the SDSL or by a plain language application (umgetalten). It is likewise possible to combine, for example, an overvoltage protection simply by switching circuit boards.

In this case, the housing is provided with a stop, wherein the end side of the printed circuit board, which is arranged on the input contacts, is located behind the stop in the mounted state. The circuit board itself is thereby prevented from moving out of the housing when the connection is released. It is fixed by a stop which is also subjected to a reaction force when the fork contact is released. In order to be far from the circuit board, it must then be easily lifted and pulled out.

In another embodiment the connection between the front part and the housing comprises at least one bolt belonging to the front part and a thread belonging to the housing, wherein the bolt is fixed to the front part, preferably two bolts are arranged at the front part in order to achieve the symmetry described above. The front part and the terminal plate connected thereto move when the bolt is screwed.

In a further preferred embodiment, the bolt is fastened to the front part by means of a groove between the bolt head and the thread, wherein the bolt is preferably permanently (verliersicher) connected to the front part. For this purpose, the screw is inserted into an opening in the front part and is moved with the groove in a narrow region. The terminal plate is then inserted through the opening and locked with the front portion.

In a further embodiment, the side wall has a guide plate slot supporting the circuit board, wherein the edge of the guide plate slot is inclined. In this case, the circuit board must remain tilted during the movement in and out, so that it can be guided by the stop.

In another preferred embodiment the housing is made of metal. This requires, apart from the HF shield, a simple production of the ground connection.

In another preferred embodiment, the bottom and the cover of the housing are separate parts which can be connected to the side wall, wherein the connection is a screw connection.

In a further preferred embodiment, the cover and/or the base consist of a spring steel plate, on which the profile fork is mounted, with which the distributor terminal assembly can be locked on the profile bar. In this embodiment, the cover and/or the base are bolted to the side wall at least in the region of the profile fork.

In a further embodiment, a spring contact is arranged on the housing, which is connected to the circuit board and forms a ground contact.

In a further preferred embodiment, the lower and upper profile forks are formed by separate plate elements, which are preferably bolted to the side walls of the housing.

The preferred way is to mount the spring contacts on the board for making a ground connection to the circuit board.

In another embodiment, the housing rear wall is detachably connected to the housing. This embodiment is preferably used when the terminal block of the pre-wiring is blocked at the rear side. Another solution is that the rear wall of the housing has lateral cutouts, so that the terminal strip and the plug connector can be moved laterally and locked. If a large number of such cutouts (schlifz) is required, they are preferably arranged on the rear wall of the housing alternately from side to side in order to hinder the mechanical stability thereof as little as possible.

In a preferred embodiment, the cable guide can be inserted into a side wall of the housing.

In a further preferred embodiment, two terminal strips are associated with each front part, and a terminal strip or a connector is attached to the opposite end face. This embodiment is preferably used for DSL applications of the main distributor. The POTS subscriber card is therefore associated with the first front terminal board and the second front terminal board also corresponds to the subscriber, the terminal boards and the plug connectors being connected to the server (Dienstanbieter).

In a further preferred embodiment, the contact elements of the terminal strip are mechanically supported in the terminal strip in such a way that the terminal strip is connectable beforehand to the core outside the distributor block. This also makes it possible to separate the fully wired terminal strip from the printed circuit board and to replace the printed circuit board without having to remount the core.

By means of the invention it is now possible to replace the circuit board without interrupting the telephone service. In this case, a contact of the first terminal strip is short-circuited to a contact of the second terminal strip by a short-circuit bridge (kurzschluss bullet). The fully wired terminal block is then removed from the circuit board by removal of the front portion without interrupting telephone service.

The invention is explained in detail below with the aid of preferred embodiments.

Drawings

Figure 1 perspective rear view of a distributor wiring assembly

Figure 2 perspective front view of a distributor terminal assembly without a cover

Figure 3 a front part with two assembled terminal blocks and bolts

Figure 4 front part without terminal plate and bolt

FIG. 5A perspective view of a bolt

FIG. 6 is a perspective view of the housing without the cover and base

FIG. 7 side view of the housing side wall

FIG. 8 detail of the threaded area of the receiving bolt

FIG. 9 is a perspective view of a plate with lower and upper profile prongs and spring contacts

Fig. 10 is an exploded perspective view of a terminal plate of a circuit board

FIG. 11 sectional view of assembled terminal plate

Fig. 12 is a perspective rear view of the terminal plate

Detailed Description

A switchboard terminal assembly 1 is shown in figure 1 and comprises a metal housing 2 with a cover 3. Four terminal blocks 5 are arranged above and below the rear edge 4 of the housing 2, wherein each terminal block 5 is an 8DA- (Doppel-Ader) -terminal block. The terminal block 5 is provided with cut-off 'clamping' contacts which constitute the output contacts of the switchboard junction block 1. At the opposite end face, 4 rows of 2 terminal strips 5 are arranged, which form the input contacts of the distributor block 1. It should be added here that the designations input and output contact are used for definition only, since the signal flow can take place in both directions. Inside the distributor block 1 is a cavity in which the circuit boards 6 are mounted, wherein at least one circuit board 6 is mounted between one terminal strip 5 on the rear side and two corresponding terminal strips 5 on the front side, as can be seen in fig. 2. The terminal strips 5 belonging to the front row are each connected to the housing 2 via a front part 7, as will be explained in more detail below, and the cover 3 has two fork-shaped profiles 8 with which the distributor connection assembly can be locked on a profile bar, not shown. Two such profile forks are likewise mounted in the base not shown. In order to achieve sufficient strength, the cover 3 and the base are formed from a resilient sheet metal, while the remaining housing 2 can be formed from simple stainless steel, the cover 3 and the base being fastened to the housing 2 by means of screws 9, at least one screw 9 being mounted in the region of the profile fork 8. The housing 2 also has a bore 10, through which a spring contact 11 is fastened to the housing. The spring contact 11 preferably consists of two oppositely curved leaf springs, as shown, for example, in fig. 9. The leaf springs are relatively curved in the front region, so that an open region is created, which facilitates the sliding of the circuit board 6. In this case, a contact point is connected to the opening region, in which the two leaf springs are bent toward one another.

The grounding of the circuit board 6 is effected to the ground of the housing 2 by means of the spring contacts 11. It is particularly advantageous to mount a protective element, such as a surge arrester, on the circuit board 6. The spring contacts 11 preferably make contact with the circuit board 6 from the top and bottom, wherein in principle a one-sided contact is sufficient. The spring contacts 11 can thus be mounted on both sides of the housing 2 or on one side. This is dependent on the circuit board layout and the current density conducted to ground, and the housing 2 additionally comprises a support for the cable guide 13 and a slot guide 14 for the circuit board 6.

The front part 7 with two assembled terminal blocks 5 and two bolts 15 is shown in fig. 3. As can be seen in particular in fig. 4, the front portion 7 has an opening 12. The terminal plate 5 is inserted into the opening and can be locked. A slot-like region 16 is connected in each case laterally above the opening 12. The bolt 15 has a groove 19 between the bolt head 17 and the threaded portion 18, wherein the diameter of the threaded portion 18 is larger than the width of the slit-like region 16 and the diameter in the region of the groove 19 is smaller than the width of the slit-like region, which is shown in fig. 5. The bolt 15 is inserted in the opening 12 of the terminal plate 5 and moves along the slot 19 into the slit-like area. If the terminal plate 5 is then inserted and locked, the two bolts 15 are permanently fixed on the front portion 7 but can be turned. As a result, the movement of the bolt 15 when the bolt 15 is turned in a counter thread (gegenigewindde) causes a forced movement of the front part 7 and the terminal plate 5, and if the bolt 15 is also screwed onto the counter thread on the housing, the terminal plate 5 moves towards the circuit board 6, and the breaking clamping contact has a fork-shaped contact which moves over the circuit board 6 and comes into contact with the circuit board 6.

Before describing the structure of the housing in detail, a preferred embodiment of the terminal strip 5 should first be explained in detail with the aid of fig. 10 to 12. With this embodiment, the terminal block can be wired beforehand and connected to the circuit board afterwards.

Fig. 10 shows the terminal strip 5 in perspective, the terminal strip 5 comprising a first housing part 20, a second housing part 30 and a plurality of contact elements 40. The first housing portion 20 has a clamping rib 21, a wire guide lug 22 and a slot flange 23. The second housing portion 30 has a card slot support 31 and a card slot flange 32. In addition, the portion of the second housing part 30 facing the circuit board forms a comb-like extent, on the inner side of which upper and lower ribs 33 are mounted, part of which is visible in fig. 12, wherein the ribs 33 are bevelled in the front extent. The plug connector can be easily moved on the circuit board by the formed slope. The contact element 40 has a severing clamp contact 41 and a fork contact 41, wherein the severing clamp contact 41 and the fork contact 42 are twisted about 45 ° relative to one another. The fork contacts 42 each have two rounded, inwardly arched contact regions 43. The breaking clamping contact 41 of the contact element 40 is inserted in the seat between the clamping ribs 21 and is mechanically fixed there. The second housing part 30 is then locked to the first housing part 20, with the card slot collar 23 engaging in the card slot support 31. The contact element 40 is furthermore supported mechanically on a lower edge 44 and/or a lower edge 45 of the severing clamp 41 on a mechanical stop that is not visible in the second housing part 30.

This assembled condition is shown in fig. 11 and 12. Fig. 11 here shows a section of the terminal plate, wherein the cutting position is between two clamping ribs. As can be seen in particular in fig. 11, the lower edge 45 is located on a stop of the second housing part (30), so that the contact element 40 is held permanently mechanically in the terminal block 5, so that in this state the core can be connected to the breaking clamping contact 41, otherwise the connecting force can press the contact element 40 out. The mechanical coupling force will be received by the mechanical stop in the second housing part 30. The height of the ribs 33 is such that the contact areas 43 project out. It is thus ensured that there is sufficient contact pressure between the contact region 43 and a contact pad mounted on the terminal plate.

In fig. 6, the housing 2 is shown in perspective without the cover and the bottom, and in the front region the housing 2 has two end faces 50. Four threads 51 are machined into each end face 50, into which threads the bolts 15 can be screwed. The side walls have holes 52 in which the cable guides 13 can be inserted. In addition, heat losses generated by the functional components on the circuit board can be dissipated via the opening 52. In addition, the hole 10 of the spring contact can be seen. The side walls each have two bends 53, into which the slot guides 14 are added, the exact course of which can be seen in fig. 7. It should therefore be appreciated that the upper edge of the slot guide 14 is inclined downwardly so as to transition into a horizontal region. The circuit board can thus be guided obliquely upwards from the front edge until it falls behind the stop 54. The stop 54 is shown enlarged in fig. 8. Here the stop 54 projects slightly above the centre line of the imaginary thread 51. The printed circuit board rests on the lower edge of the guide plate slot 14 in the inserted state, so that its end face lies below the stop 54. In the middle area the housing has inwardly directed ribs 55, holes 56 are threaded and bolted to the housing 2 via the cover and base, and the rear wall 57 has openings 58 similar to the openings 12 of the front part 7. The terminal plate 5 can then be inserted into this opening 12 and locked.

Fig. 9 shows a possible embodiment of a plate element 60, with which the profile fork 8 and the spring contact 11 can be realized in a common structural part. The profile fork 8 is thus bent in a U-shape in the rear region and becomes a spacer 61 from which the spring contact 11 originates. This U-shaped region is able to receive the bending forces that occur when tightening (Aufrasten) over the profile rod 62. Otherwise the spring contact 11 will bend. Plate 60 may be bolted to the housing through opening 63 in spacer 61. In this embodiment, the cover and the base are no longer made of elastic material, but can be made of ordinary stainless steel, like the remaining housing parts, so that the cover, the base and the remaining housing can again be designed as one piece.

Claims (18)

1. Distributor connection assembly (1) for telecommunications and data technology, comprising a housing (2) in which input and output contacts accessible from the outside are arranged for connecting wires and cable conductors, wherein the housing (2) has a cavity in which at least one circuit board (6) is arranged, wherein the input contacts form at least one terminal strip (5) having a disconnection clamping contact (41), wherein the input and output contacts are detachably connected to the circuit board (6), wherein the terminal strip (5) supporting the output contact is detachably connected to the housing (2) via a front section (7), wherein the disconnection clamping contact (41) is connected to the circuit board (6) via a fork contact (42), and wherein the connection between the front section (7) and the housing (2) is formed in such a way that, when the connection is released, the terminal strip (5) connected to the front part (7) is separated from the circuit board (6) together with the fork-shaped contacts (42), characterized in that the input and output contacts are mounted on opposite end faces of the housing, and the housing (2) has a stop (54), wherein the circuit board (6) rests behind the stop (54) in the mounted state with its end face corresponding to the input contact.

2. Distributor connection block according to claim 1, characterized in that the connection between the front part (7) and the housing (2) comprises at least one bolt (15) belonging to the front part (7) and one thread (51) belonging to the housing (2), wherein the bolt (15) is fixed to the front part (7).

3. Distributor terminal assembly according to claim 2, characterized in that the bolt (15) is fixed to the front part (7) by means of a groove (19) between the bolt head (17) and the thread (18).

4. A distributor terminal assembly according to claim 2 or 3, characterized in that the bolt (15) is permanently connected to the front part (7).

5. The distributor terminal assembly according to claim 4, wherein the side walls of the housing have a guide slot (14) for supporting the circuit board (6), wherein the edges of the guide slot (14) are inclined.

6. A distributor terminal assembly according to claim 1 or 2, characterized in that the housing (2) is made of metal.

7. A distributor terminal assembly according to claim 1 or 2, characterized in that the bottom of the housing (2) and the cover (3) are separate parts which are connectable to the side walls.

8. Distributor block terminal assembly according to claim 7, characterized in that the cover (3) and/or the bottom is/are formed by a spring steel plate, wherein profile forks (8) are mounted on the spring steel plate, by means of which the distributor block terminal assembly (1) can be locked on the profile bars (62).

9. Distributor contact assembly according to claim 8, characterized in that the cover (3) and/or the bottom is bolted to the side wall in the area of the profile fork (8).

10. Distributor block according to claim 6, characterized in that a spring contact (11) is arranged on the housing (2), which spring contact is connected to the circuit board (6) and makes a grounding contact.

11. Distributor block terminal assembly according to claim 8, characterized in that the lower and upper profile prongs (8) are formed by a plate (60).

12. A distributor terminal assembly according to claim 11, characterized in that the plate member (60) is bolted to the housing (2).

13. A distributor terminal assembly according to claim 12, wherein the spring contacts (11) are connected to the plate member (60).

14. A distributor terminal assembly according to claim 1 or 2, wherein the housing rear wall (57) is detachably connected to the housing (2).

15. The distributor connection block according to claim 1 or 2, characterized in that the housing rear wall (57) has a lateral slot into which the terminal strip (5) can be moved laterally and can be locked.

16. A distributor terminal assembly according to claim 1 or 2, characterized in that the cable guide (13) is insertable into a side wall of the housing (2).

17. A distributor block according to claim 1 or 2, characterized in that two terminal boards (5) are associated with each front portion (7) and a terminal board (5) or a plug is mounted on the opposite end face.

18. The distributor block connection assembly according to claim 1 or 2, wherein the contact elements (40) of the terminal strip (5) are mechanically supported in the terminal strip (5) in such a way that the terminal strip (5) can be connected to the core wires outside the distributor block connection assembly beforehand.