DE102012022644B4 - Distribution module and method of connecting wires - Google Patents

Abstract

Distribution module (1) for telecommunications and data technology, which has a plastic housing in which wire connection contacts (7, 9) are arranged, first wire connection contacts (7) being connectable from an upper side (O) of the distribution module (1) and second Wire connection contacts (9) can be wired from an underside (U) of the distributor module (1), the first and second wire connection contacts (7, 9) each being arranged in a row, with two hook-shaped deflection elements ( 14) are arranged, which are arranged above the second wire connection contacts (9), characterized in that the deflection elements (14) extend from an edge (15) on the front side (V), the deflection elements (14) being above domes (12 ) The second wire connection contacts (9) are arranged, wherein the dome (12) to the front (V) are set back, wherein the deflection elements (14) each include a wide base part (16) that extends perpendicularly from the edge (15) in the direction of the underside (U), with the base part (16) being adjoined by a slope (17) which extends in the direction of the associated second wire connection contacts (9), with the slope (17 ) adjoins an end piece (18) which runs parallel to the edge (15), from which end piece a recess (19) departs, which extends from the front towards a wall (20) which is flush with a front of the dome ( 12) of the second wire connection contacts (9).

Description

The invention relates to a distribution module and a method for connecting wires to such a distribution module.

Connection or distribution modules for telecommunications and data technology are well known in various embodiments. These usually have a plastic housing in which wire connection contacts are arranged in at least one row along the longitudinal direction. The wire connection contacts are predominantly designed as insulation displacement contacts or as wire wrap contacts. The insulation displacement contacts are preferably set at an angle of 45° to the longitudinal axis, so that they cut into a core with the wire at two points that are offset in the longitudinal direction of the core. If the wire is then pulled perpendicularly to the slot of the insulation displacement contact, the cutting surfaces of the insulation displacement contact cut further and prevent the wire or the wire from detaching from the contact. If, on the other hand, the tensile forces act obliquely upwards (in extreme cases vertically), there is a force component in the longitudinal direction of the contact slot of the insulation displacement contact and there is a risk that the wire or the wire of the wire will come loose from the contact. This problem is exacerbated with connection or distribution modules that are arranged with a high packing density and controlled wire routing is only possible to a limited extent.

From the DE 10 2009 056 295 A1 such a distribution module with high packing density is known, comprising a housing and wire connection contacts, with first wire connection contacts being accessible from a top side of the housing and second wire connection contacts being accessible from a bottom side of the housing, with the first and second wire connection contacts each being part of one-piece first and second contact elements, with one contact limb of a first contact element and one contact limb of a second contact element each form an isolating contact, with the wire connection contacts being aligned in one plane, with the contact limbs being arranged in such a way that the plane of the wire connection contacts is at an acute angle to a plane of the contact limbs.

From the DE 20 2008 014 699 U1 discloses a connection module for telecommunications and data technology with a module housing in which contact elements are arranged to connect wires on one side of the cable with wires on a jumper side in such a way that terminal strips are formed on two longitudinal surfaces of the module housing that face away from one another, with the module housing in one Area of its longitudinal extension has at least one guide means, which guides a plurality of wires at least one of the sides in such a way that the wires of both sides are guided on the same side surface to the terminal strips assigned to them. The guide means is formed by an opening in the module housing, at least one slot on the module housing, at least one web arranged on the module housing or a region of the module housing enclosing a plurality of wires. It is further provided that the at least one guide means is formed by an opening in the module housing, which is preferably located in its central area and the contact elements of the terminal strips are located on both sides in the direction of the longitudinal extension of the housing. A disadvantage of the connection module is, among other things, the lack of wire tension protection of the cores. In addition, there is not enough space for the opening in distributor modules with a high packing density.

From the DE 10 2010 035 179 B3 a pull-wire fuse for connection or distribution modules for telecommunications and data technology with wire connection contacts is known. Wire is understood to mean a wire with plastic insulation. The pull-wire safety device has a deflection element with an edge and at least one fastening element, it being possible for the pull-wire safety device to be fastened to a connection or distribution module by means of the fastening element. When fastened, the edge runs parallel to the longitudinal direction of the connection or distribution module and perpendicular to the connected wires in the wire connection contacts. The wires are routed away from the connection or distributor module under the edge. If the wire is then pulled diagonally upwards over the edge, the force component runs parallel to the contact slot no longer through the contact, but through the laterally offset edge. This reliably protects the wire from being pulled out unintentionally. The basic principle is to use the edge of the deflection element to “deflect” force components perpendicular to the wire in the contact, so that they act laterally offset.

The edge has radial indentations. The veins are then routed through these indentations. The depth of the indentations depends on the thickness of the veins. The depth of the indentations is preferably such that the wires that are passed through have little play, that is to say can only be guided at an angle slightly or not at all between the contact and the indentation.

A disadvantage of the known pull-wire fuse is that the manufacturing and assembly costs are increased due to the necessary additional part.

In the following, no distinction should be made between the distributor module and the connection module; rather, the term distributor module also includes connection modules.

From the DE 20 2011 100 540 U1 , U.S. 2012/0 088 414 A1 WO 2013/032 655 A1 as well as the DE 10 2004 017 605 B3 generic distributor modules are known.

Other distribution modules are from the U.S. 6,284,980 B1 the DE 696 04 331 T2 as well as the DE 100 01 553 A1 known.

The invention is based on the technical problem of creating a distributor module in which improved wire routing is guaranteed, and of providing a method for connecting wires to such a distributor module.

The solution to the technical problem results from the subject matter with the features from claim 1 and the method from claim 8. Further advantageous refinements of the invention result from the dependent claims.

For this purpose, the distributor module for telecommunications and data technology comprises a housing made of plastic, in which wire connection contacts are arranged, with first wire connection contacts being connectable from a top side of the distributor module and second wire connection contacts being connectable from a bottom side of the distributor module, with the first and second wire connection contacts each being in are arranged in a row, with two deflection elements being arranged at least on a front side of the housing, which are arranged above the second wire connection contacts. The deflection elements are integrated into the housing or a housing part, that is to say they are designed in one piece. The deflection elements act as wire pull protection and allow a very compact design compared to one or more openings. In this case, as in the prior art, the force component of a tensile force is led out of the wire connection contact. Thanks to the integrated design, this solution is also more cost-effective and simpler than solutions with separate pull-wire fuses.

Furthermore, the deflection element is designed in the form of a hook, the hook-shaped deflection element being designed with a recess. The actual deflection takes place at the recess, with the remaining elements of the hook-shaped deflection element realizing a hold-down function for the wires.

The domes of the second wire connection contacts are set back towards the front. This allows a particularly simple integration of the deflection elements in the front of the housing, with the recess preferably extending to just before the dome. This enables a very compact arrangement of the cores.

In this case, the deflection elements start from an edge on the front side, with the deflection elements being arranged above the domes of the second wire connection contacts. The deflection elements each have a wide base part that extends perpendicularly from the edge in the direction of the underside, with the base part being adjoined by a bevel that extends in the direction of the associated second wire connection contacts. The bevel is followed by an end piece that runs parallel to the edge, with the end piece having a recess that extends from the front side in the direction of a wall that is level with a front side of the dome of the second wire connection contacts.

In one embodiment, at least the second wire connection contacts are arranged equidistantly from one another, which allows a particularly high packing density. The first wire connection contacts are preferably also arranged equidistantly from one another.

In a further embodiment, a deflection element is assigned to two or four second wire connection contacts, the assignment to four wire connection contacts being preferred since this represents a very good compromise between handling and wire tension protection.

In a further embodiment, the respective deflection element is arranged offset laterally with respect to the associated second wire connection contacts. This causes a good deflection of the tensile forces of the wires.

In a further embodiment, the number of contact pairs or the number of contact quads of the second wire connection contacts is odd, with no deflection element being assigned to the middle contact pair or contact quad. It is preferably provided that all wires are held together via a common bundle ring, the wires for the middle pair of contacts or the middle contact quad between the bundle ring and the wire connection contact having an excess length. This ensures that in the event of tensile forces, the strain relief engages via the deflection elements for the other wires, before the tensile forces occur on the central cores without a deflection element.

In a further embodiment, the housing is designed in three parts. The housing has a housing top part, a housing middle part and a housing bottom part, with the deflection elements being arranged on the housing bottom part.

According to the method, the cores are routed from the underside to the center of the distribution module in order to deflect and connect the deflection elements to their associated second core connection contacts.

• 1 eine Explosionsdarstellung eines Verteilermoduls,
• 2 eine perspektivische Vorderansicht des zusammengesetzten Verteilermoduls,
• 3 eine perspektivische Unteransicht des zusammengesetzten Verteilermoduls,
• 4 eine Detaildarstellung eines Umlenkelementes aus 3 und
• 5 eine Vorderansicht auf das Verteilermodul mit angeschalteten Adern an die zweiten Aderanschlusskontakte.

The invention is explained in more detail below using a preferred exemplary embodiment. The figures show:

• 1 an exploded view of a distributor module,
• 2 a front perspective view of the assembled distribution module,
• 3 a bottom perspective view of the assembled distributor module,
• 4 a detailed representation of a deflection element 3 and
• 5 a front view of the distributor module with wires connected to the second wire connection contacts.

In the 1-3 a distribution module 1 for telecommunications and data technology is shown. The distributor module 1 comprises a three-part housing with a housing upper part 2, a housing middle part 3 and a housing lower part 4. The upper side of the housing upper part 2 forms the upper side O of the distributor module 1 and the lower side of the housing lower part 4 forms the lower side U of the distributor module 1. The distributor module 1 further comprises first contact elements 5 and further contact elements 6, which are each arranged in a row at an equidistant distance from one another. The distance between the first contact elements 5 and the distance between the second contact elements 6 is the same. The first contact element 5 comprises a first wire connection contact 7 and a first contact leg 8. Accordingly, the second contact element 6 comprises a second wire connection contact 9 and a second contact leg 10. A first contact leg 8 and a second contact leg 10 each form a break contact. The first and second wire connection contacts 7, 9 are designed as insulation displacement contacts. The first wire connection contacts 7 are each between two first domes 11 and the second wire connection contacts 9 are each between two second domes 12. It should be noted that in the illustration according to FIG 1 some second contact elements 6 have been removed on the left and the penultimate contact element 6 has been removed on the right. Some first contact elements 5 have also been removed on the right. With regard to the exact structure of the contact legs 8, 10 and the housing parts, in particular how they are connected to each other on the DE 10 2009 056 295 A1 referred.

The domes 11 of the upper housing part 2 are set back to a front side V of the upper housing part 2 or of the distributor module 1 . Correspondingly, the domes 12 of the lower housing part 4 are set back towards the front side V of the lower housing part 4 or of the distributor module 1 . Furthermore, the upper housing part 2 has openings 13 through which the isolating contacts are accessible.

Arranged on the lower housing part 4 are four deflection elements 14 which are arranged mirror-symmetrically, with the mirror axis A in 2 is shown in dashed lines. The deflection elements 14 are hook-shaped and extend from an edge 15 on the front side V, the deflection elements being arranged above the dome 12 . The deflection element 14 is now based on 4 explained in more detail.

The deflection element 14 comprises a broad base part 16 which extends perpendicularly from the edge 15 in the direction of the underside U. A bevel 17 adjoins the base part 16, which extends in the direction of the associated second wire connection contacts 9, which will be explained in more detail later. An end piece 18 which runs parallel to the edge 15 adjoins the bevel 17 . From the end piece 18 there is a recess 19 which extends from the front in the direction of a wall 20 . The wall 20 is level with a front side of the dome 12. The recess 19 can be guided up to just before the wall 20 or up to the wall 20, with the deflection element 14 forming a closed contour in the latter case. It should also be noted that the recess 19 is wider than the end piece 18 and thus forms a small projection 21 .

The distribution module 1 includes twenty first wire connection contacts 7 and twenty second wire connection contacts 9, so that ten pairs can be connected. Each deflection element 14 is assigned to a contact quad KQ of second wire connection contacts, with no deflection element 14 being assigned to the central contact quad KQ. The associated deflection element 14 is arranged laterally to its contact quad KQ. This is based on 2 briefly explained. The four left wire connection contacts 9.1-9.4 form a contact quad KQ for connecting two pairs. That associated left deflection element 14 is arranged further to the right, so that the recess 19 is above the dome 12.4. The forces to be deflected at the recess 19 therefore do not go through a second wire connection contact 9.1-9.4. On the right-hand side, the deflection elements 14 are offset laterally to the left relative to their contact quad KQ.

In the 5 Finally, the distributor module 1 is shown with connected pairs. The first two pairs DA1, DA2 are routed under the first deflection element and over its recess 19. Similarly, the third and fourth pairs DA3, DA4 are routed under the second deflection element. The fifth and sixth pair of wires DA5, DA6 are routed directly to the second wire connection contacts 9. The seventh and eighth pair of wires DA7, DA8 are routed over the third deflection element 14 and the ninth and tenth pair of wires DA9, DA10 are routed over the fourth deflection element 14. All ten pairs DA1-DA10 are combined via a common bundle ring 25. The fifth and sixth pair of wires are laid between the bundle ring 25 and the wire connection contacts (9) with some play (excess length) (not shown), so that when tensile forces occur below the bundle ring 25, the excess length is stretched first. Before the excess length is fully stretched, the deflection elements 14 absorb the tensile forces.

Reference List

1

distribution module

2

housing top

3

middle part

4

housing base

5

contact elements

6

contact elements

7

First wire connection contacts

8th

contact leg

9

Second wire connection contacts

10

contact leg

11

Dom

12

Dom

13

opening

14

deflection elements

15

edge

16

base part

17

oblique

18

tail

19

return

20

Wall

21

head Start

25

bundle ring

A

mirror axis

DA1-DA10

pair

KQ

contact quadruple

O

top

u

bottom

V

front

Claims (8)

Distribution module (1) for telecommunications and data technology, which has a plastic housing in which wire connection contacts (7, 9) are arranged, first wire connection contacts (7) being connectable from an upper side (O) of the distribution module (1) and second Wire connection contacts (9) can be wired from an underside (U) of the distributor module (1), the first and second wire connection contacts (7, 9) each being arranged in a row, with two hook-shaped deflection elements ( 14) are arranged, which are arranged above the second wire connection contacts (9), characterized in that the deflection elements (14) extend from an edge (15) on the front side (V), the deflection elements (14) being above domes (12 ) of the second wire connection contacts (9) are arranged, the domes (12) being set back towards the front (V), the deflection elements (14) each comprising a wide base part (16) which sic h extends perpendicularly from the edge (15) in the direction of the underside (U), with a bevel (17) adjoining the base part (16) and extending in the direction of the associated second wire connection contacts (9), with the bevel ( 17) adjoins an end piece (18) parallel to the edge (15), from which end piece there starts a recess (19) which extends from the front towards a wall (20) flush with a front of the dome (12) of the second wire connection contacts (9). distributor module claim 1 , characterized in that at least the second wire connection contacts (9) are arranged equidistantly from one another. Distribution module according to one of the preceding claims, characterized in that one of the deflection elements (14) is assigned to two or four second wire connection contacts (9). distributor module claim 3 , characterized in that the respective deflection element (14) is arranged offset laterally to the associated second wire connection contacts (9). distributor module claim 3 or 4 , characterized in that the number of contact pairs or the number of contact quads (KQ) of the second wire connection contacts (9) is odd, with the middle contact pair or contact quad (KQ) not being assigned a deflection element. distributor module claim 5 , characterized in that wires are connected to the second wire connection contacts (9), the wires being guided from the underside (U) to the center of the distribution module (1), wire pairs or wire quads under the associated deflection elements (14) around the recess ( 19) are routed around, with all wires held together by a common bundle ring (25), the wires for the middle contact pair or the middle contact quadruple (KQ) between the bundle ring (25) and wire connection contact (9) having an excess length. Distribution module according to one of the preceding claims, characterized in that the housing is designed in three parts and has a housing upper part (2), a housing middle part (3) and a housing lower part (4), the deflection elements (14) being arranged on the housing lower part (4). . Procedure for connecting wires to a distribution module (1). claim 1 , characterized in that the wires from the underside (U) are guided centrally to the distribution module (1) to the deflection elements (14) to their associated second wire connection contacts (9) are deflected and connected.

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