DE8630977U1 - Connection distributor for installation in flange housing - Google Patents

Description

HARTING ELECTRONICS GmbH
Marienwerder Str. 3

4992 Espelkamp

18.11.1986

16/86-09 Connection distributor for installation in flange housing

The innovation concerns a connection distributor for installation in flange housings that can be attached in front of wall openings or housing openings, whereby the connection distributor is provided on one side with a plug connection for a multi-pole plug connector and on the other side is designed for the connection of individual conductors to contact parts of the connection distributor, which are connected to the contact parts of the multi-pole plug connection.

Such connection distributors are used, for example, to distribute incoming

Cables that are generally combined in a multi-pin plug connector connection / plug connector into further cables, whereby these individual cables can be connected to plug or clamp connections of a connection distributor, which are electrically connected to the plug connections of a multi-pin plug device. It is necessary that the connection distributor can be easily mounted and assembled on or in housing or control cabinet walls, even in cramped installation conditions. EP-A-OO 97 255 discloses a connection distributor for installation in flange housings, which is provided on the one hand with a multi-pin plug device and on the other hand with connection options for individual cables. Here, it is provided that the completely assembled connection distributor is inserted from the inside of the control cabinet into a flange housing mounted on the front of the flange housing and screwed to it. The disadvantage of this largely satisfactory arrangement is that the connection distributor must be screwed on from the front of the control cabinet, while the connection distributor itself is inserted from the inside of the control cabinet. This often causes problems - especially with large control cabinet walls - and additional auxiliary equipment is required.

person required for assembly.

From a further version of the device known from EP-A-00 97 255, it is also known to screw a base part into the flange housing from the front and to snap a block made up of individual segments, which contains the conductor connection devices, onto the base part from the inside of the control cabinet. This block is provided with lateral fastening/holding brackets, via which the supply and connection of the conductors is made possible. Segments are created and the block is additionally attached to the flange housing via the &agr;&Ggr;&igr;&agr;&thgr;&Tgr;&THgr;&Ggr;-side.

However, with this known device, the locking of the connection block and base part means that it is no longer possible to separate the parts after they have been put together. The innovation is now based on the task of designing a connection distributor of the type mentioned above in such a way that the conductor connection block can be removed from the flange housing even after the connection distributor has been installed in order to be able to carry out the wiring or wiring changes without any problems. This removal and reinsertion of the conductor connection block should also be possible in cramped installation conditions and in particular without the need for an assistant.

This task is solved according to the innovation in that the connection distributor is detachably assembled from a base part and a pre-assembled connection block containing the contact parts, whereby the base part is designed on its side facing away from the connection block according to the geometric shape of the multi-pin connector and is inserted into the flange housing from the plug side - in relation to the connection of the multi-pin connector - and is fastened to it, and the pre-assembled connection block is placed on the base part from the opposite side - wiring side - and is mechanically connected to it, and whereby plug contact parts protruding from the connection block are accommodated in guide openings in the base part and protrude into the plug area of the multi-pin connector.

• · ♦

Preferably, the flange housing is a commercially available component that is also used elsewhere for the installation of plug-in devices, and the base part provided according to the invention can also be a component that is also already used as a component for the plug-in devices mentioned above, but is provided with additional holding or fastening means for the connection block. In other words, commercially available parts are partly used, which are also still used to a large extent for the installation of floor devices.

'■0. This makes it possible to achieve a particularly economical solution.

Further advantageous embodiments of the innovation are explained in more detail in claims 2 to 8.
The advantages achieved with the innovation consist in particular in a significant simplification of handling and assembly, in that the completely pre-assembled connection block - forming a complete structural unit - possibly already wired outside the final installation position, is inserted into the flange housing from the inside of the control cabinet and is firmly connected to the base part via screw connections on the brackets, which are also accessible from this side. If necessary, the connection block can also be loosened and removed again in order to be able to carry out subsequent wiring changes. This advantage is all the more important in cramped installation and connection conditions within the control cabinet.

An example of the innovation is shown in the drawing and is explained in more detail below.

Fig. 1 shows the view of a connection distributor, Fig. 2 shows the side view of the connection distributor according to Fig. 1

in section along line 2-2,

Fig. 3 shows the view of the connection distributor according to Fig. 1, in an exploded view,

Fig. 4 the view of a base part for a connection distributor with pin contacts in section,

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Fig. 5 the view of a base part for a connection distributor

with socket contacts in section, and Fig. 6 a view of different mounting options of the

connection distributor.
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The connection distributor shown in Fig. 1 and 2 consists essentially of a base part 1 and a connection block 2, which are provided with a flange housing 3, whereby the flange housing is attached to a wall 4. The flange housing is arranged on one side of the wall and the connection block protrudes through a wall opening 5 and is accessible on the other side of the wall.

In Fig. 3 the connection distributor is shown for better visibility

of the various components are shown in an exploded view. The base part 1 is a known, essentially rectangular insulating body 6 which is also used in other multi-pole plug devices and which is provided on its narrow sides 7 with fastening brackets 8 made of sheet metal material. Screws 9 are provided in the corner areas of the fastening brackets, by means of which the base part is fastened in the flange housing.

Metal brackets 10 are attached to the mounting brackets, which are attached using screws 11, whereby pins on the mounting brackets engage in recesses 13 of the brackets and ensure that the brackets are positioned and held correctly. The brackets mentioned above are used to attach the connection block to be inserted later. On the side opposite the mounting or brackets, the base part 1 / the insulating body 6 is designed according to the plug-in geometry of a commercially available, multi-pin mating connector.

The flange housing 3 is designed to accommodate the base part 1, whose mounting brackets 8 come to rest on projections 14 when inserted and are fastened here by means of screws 9. Here too, it is intended that a known, commercially available component is used as the flange housing, which can also

already used elsewhere for multi-pole connectors.

The connection block 2 consists essentially of flat insulating segments 15 joined together, whereby the individual segments are held together by means of tenon or snap-in connections. The insulating segments are preferably designed as half-shells that are open on one side and into which contact parts 16 are inserted. The contact parts have connection devices 17 at one end for connecting individual conductors 18.

The connection devices are preferably provided as screw terminals, or if necessary as plug-in connection lugs, screwless conductor terminal connections or the like.
The connection devices of the contact parts are accessible from the outside of the connection block so that the corresponding conductors can be connected individually.

Extensions of the contact parts protrude from the lower side of the connection block or the insulating segments. These areas of the contact parts are designed as pin or socket contacts, whereby the design as a pin contact 19 is shown in the figures. In addition to the insulating segments 15 containing the contact parts, lateral end segments 20 are provided on the connection block. These end segments (without contact parts) are provided with guide grooves 21 on their outer surfaces, in which the retaining brackets 10 are held in a form-fitting manner when they are joined to the base part 1. The end segments also have a projection 23 provided with a fastening screw 22, against which an angled tab of the retaining bracket 10 comes to rest when the connection block and base part are joined together. A threaded hole 25 is provided in the tab into which the screw 22 can be screwed, thus firmly screwing the connection block to the base part.

When the base part 1 and the terminal block 2 are joined together, the extensions of the contact parts protruding from the terminal block (e.g. pin contacts 19) enter guide holes 26 arranged in a corresponding grid, through which they finally protrude into the plug-in area of the base part and are connected here with a

corresponding multi-pole mating connector. To increase the clearance and creepage distances between adjacent contact parts, the insulating body 6 of the base part is provided with thin webs 27 in the area of the guide holes 26 or between them, which slide into correspondingly arranged grooves in the lower connection block area when the parts are joined together. The insulating body of the base part is also provided with guide walls 28 on its narrow sides, the mutual distance between which is dimensioned such that the lower end of the connection block (insulating segments 15 lined up next to one another) is guided and held laterally between them.

Lower side walls are provided on the long sides of the insulating body, between which the lower end of the connection block passes when the base part and the connection block are fully assembled and which provide additional guidance and support for the connection block in the transverse direction - in relation to the guidance and support provided by the side walls 28.

When joining the mating connector (not shown here) to the connection distributor, a separate protective conductor connection is generally required, i.e. one that is independent of the individual plug connections and that makes advance contact. For this purpose, the fastening brackets 8 of the insulating body 6 of the base part have a contact spring 30, which is known per se and points into the plug area of the mating connector and which, when joined together, creates an electrical connection with a contact plate of the mating connector. Furthermore, a ground contact screw 31 is provided on the holding bracket 10, to which a further protective conductor or ground connection can be made. As already mentioned above, the holding brackets are made of electrically conductive material and, due to the screw connection to the fastening bracket, the continuous electrical connection of the ground or protective conductor connection to the mating connector is guaranteed.

Fig. 4 shows a section through a base part 1, which is designed for a connection distributor with pin contacts, while Fig. 5 shows a section through a base part Γ,

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which is intended for a connection distributor with socket contacts. The essential features regarding the mounting and fastening of the connection block to the base part are identical in both versions, only in the area of the extended ends of the contact parts a few modifications are necessary, whereby the ends of the contact parts designed as plug sockets are accommodated in corresponding receiving recesses 32 in the insulating body of the base part.
Finally, Fig. 6 shows the different mounting options for the connection distributor. In the first type of mounting (see upper half of Fig. 6), the flange housing 3 is first attached to a wall 4 provided with an opening 5. The base part 1 is then inserted into the flange housing and screwed in. The connection block 2 is then inserted into the flange housing/base part from the opposite side of the wall, the extended ends of the contact parts being pushed into the guide openings in the base part and the connection block being screwed to the brackets 10. It can be provided that the conductors 18 have already been connected to the connection block beforehand, or if necessary, only connected at a later time.

Another type of assembly is shown in the lower half of Fig. 6. The first assembly step is to

IS the base part 1 is inserted into the flange housing 3 and secured therein. This pre-assembled unit is then attached to the assembly wall 4, with the brackets 10 of the base part protruding through the opening 5 in the wall. In further continuation of the assembly, as already described above, the connection block 2 is then inserted into the flange housing / base part and screwed to the brackets 10.

Claims (8)

HARTING ELEKTRONIK GmbH Marienwerder Str. 3 Espelkamp 18.11.1986 16/86-OC Protection claims: 1. Connection distributor for installation in flange housings which can be fastened in front of wall openings or housing openings, the connection distributor being provided on one side with a plug connection for a multi-pin plug connector and being designed on its other side for the connection of individual conductors to contact parts of the connection distributor which are connected to the contact parts of the multi-pin plug connection, characterized in that
&bull;that the connection distributor is detachably assembled from a base part (1) and a pre-assembled connection block (2) containing the contact parts (16), whereby the base part (1) is designed on its side facing away from the connection block (2) according to the geometric shape of the multi-pin plug connector j and is inserted into the flange housing (3) from the plug side - in relation to the connection of the multi-pin plug connector - and is fastened to it, and the pre-assembled connection block (2) is placed on the base part (1) from the opposite side - wiring side - and is mechanically connected to it, and wherein plug contact parts (19) protruding from the connection block are received in guide openings (26) of the base part (1) and protrude into the plug area of the multi-pin plug connector. 2. Connection distributor according to claim 1, characterized in that the base part (1) is provided with lateral guide and holding brackets (10) which protrude through the installation opening of the flange housing, that the brackets (10) are provided with angled tabs (24) having threaded holes (25), that guides (21) for the brackets (10) and lugs (23) having screw holes are provided on the sides of the connection block (2), the brackets being connected to the connection block by means of screws (22) inserted into the screw holes ■ t ■ · - 9 can be screwed. 3. Connection distributor according to claim 1 or 2, characterized in that that the connection block (2) is assembled from disc-shaped insulating segments (15) arranged in a row, the insulating segments being designed to positively receive the contact parts (16) and the mutual retention of the insulating segments being achieved by tenon connections, and that lateral end segments (20) without contact parts are provided, which are provided with guide and fastening devices (21, 22, 23) for the holding angles (10). 4. Connection distributor according to one or more of the preceding claims, characterized in that that the retaining brackets (10) are electrically connected to ground contact springs (30) of the base part (1) and are provided with a screw connection (31) for a ground line in their area protruding through the installation opening of the flange housing. 5. Connection distributor according to one or more of the above Claims, characterized in that that on the narrow sides of the base part (1) there are formed formations with guide walls (28), between which the lower area of the connection block (2) is guided and held when the connection block and base part are joined together. 6. Connection distributor according to one or more of the preceding claims, characterized in that that on the long sides of the base part (1) there are formed portions (side walls 29) which, when the connection block and the base part are joined together, form the lower long sides of the connection block (2) leading and centering overlap. &bull; till * * 7. Connection distributor according to one or more of the preceding claims, characterized in that that the base part (1) is provided on its side facing the connection block (2) with transverse and longitudinal ribs (27) arranged between the guide openings (26) for the plug contact parts (19), which ribs engage in correspondingly arranged transverse and longitudinal grooves in the connection block, which are arranged here between the plug contact parts (19) protruding from the connection block. ho jm 7ijcamjnonf �iacgr;&idigr;&pgr;&ogr;&eegr; \ir\n Ancs*hlnAKl ns* I/ im/i Cnrl/a ltaf 1 aintjiiirhan 8. Connection distributor according to one or more of the preceding claims, characterized in that that the flange housing is provided with locking devices for the multi-pin mating connector.