DE8223545U1 - ANGULAR CONNECTOR SET - Google Patents

Description

82706 G

The invention relates to an angular connector for connecting a shielded, plastic-insulated one Power cable to an electrical system provided with a housing with a bushing, in particular to a transformer or a switchgear, with an insulating body made of elastic plastic, preferably Silicon rubber, in the bore of which there is a metallic corner connector, each with a connection option for the conductor of the cable and the plant.

Such a plug-in fitting can be found in the Elastimold fittings brochure, for example under the type no. (K) 154 LR shown. This angled plug is only for the system side Connection provided, but not on the cable side equipped accordingly. This means that in the case of the previously known right-angle connector, the first step is to use a press-fit connection a kind of corner connector connects to the conductor of the cable, which is then inserted into the insulating body pushes in, after which a connecting pin is inserted into the corner connector from the side of the bushing screwed in, which in turn is now exclusively for plug connections, not for screw connections is usable for implementation on the device side.

The present invention has for its object to the corner connector and its connecting parts design that a plug connection is possible on the cable side and also on the side of the implementation a plug connection, however, if desired also a screw connection with regard to the connection to the bushing.

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In the case of an angled plug-in fitting of the type mentioned at the outset, the above object is according to FIG Invention achieved in that the corner connector on both the cable and the device side for a plug connection is equipped and has two corresponding holes of the correct angle and diameter.

In a preferred embodiment, the cable-side bore can be locked. This locking can be done in particular that the cable-side bore has a groove with an inserted snap ring, which narrows the bore diameter in the unloaded state and can be locked into a groove made in this after inserting the conductor connection bolt. The interposition of an adapter pin between the corner connector and the conductive connector of the bushing, which is provided in a particularly preferred embodiment of the invention, makes it possible to implement both plug-in and screw connections for the bushing. In the case of a plug connection, a cylindrical adapter pin is inserted into the corner connector; in the case of a screw connection, an adapter pin is used which has an external thread on the leadthrough side. In the case of assembly, this adapter pin is first screwed to the connection of the bushing and then the otherwise fully assembled angle fitting is attached to this adapter piece.

Another advantage of the plug-in technology used here is that the current transfer is available in accordance with the standing enlarged area is much cheaper than in the case of screwing.

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Finally, it is advisable to manufacture the corner connector from copper, in particular to cast, with this advantageously merges into a cylinder on the cable side, the diameter of which corresponds to the diameter of the insulation of the maximum permissible cable type and the implementation side in a normally larger cylinder passes, the diameter of which is expediently the end diameter of the insulating body corresponds to the implementation in order to enable a smooth transition and thus a simpler one Shaping of the insulating body and the inner semiconducting electrode.

In a further advantageous embodiment the insulating body is surrounded by a metallic housing that can be connected to earth. This case has no constructive tasks, but serves as a safe electrical shield, as it is in the case of the above State of the art is not given. There is only a weakly conductive plastic shield intended.

The invention is explained in more detail below using an exemplary embodiment from which further Let advantages and features of the invention be taken. If the accompanying drawing shows:

1 shows a longitudinal section through the angled connector fitting;

2 shows a longitudinal section through the corner connector;

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Fig. 3

Fig. 4

a longitudinal section through the cable-side connection cable;

a longitudinal section through the adapter pin on the bushing side.

In Figure 1, the insulating body 10 is provided with a bore or angled continuous recess 12, which picks up the stripped cable from the right and the implementation of the system from the bottom left. For electrical reasons, a weakly conductive field control funnel 14 is located in the insulating body 10 integrated, which is made of the same material as the insulating body itself, e.g. made of silicone rubber (with Carbon black additive) or possibly also of metal, for example. Furthermore, the insulating body 10, at least on the electrically stressed areas, surrounded with an outer weakly conductive layer 16 and continues to have an inner, weakly conductive layer 18 in the connection area of the bore 12.

Finally, the insulating body 10 also has spacers such as molded-on knobs or annular thickenings 11, to ensure a suitable distance from the, expedient for thermal expansion Housing 40. In the case of the example, the housing 40 is designed with two shells and has tabs 42 to Connection of the housing halves. On the conductor input side, the housing 40 is conically narrowed and has axially extending Slots 44 open to adapt the angled connector housing to the outer diameter of the cable. Possibly is a clamp can be attached. The housing can

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have a prepared point for connection to the cable shield or to earth. By concern the thickenings 11 on the housing 4O is also the weakly conductive one outer layer 16 grounded.

The corner connector 20 shown by itself in Figure 2 has two angles and diameter correct Bores 21, 22, which are usually contact blades 24 included. The cable-side bore 21 is preferably designed to be lockable. In the case of the example shown one sees a snap ring 26 embedded in a groove 27 which, in the unloaded state, has the diameter the bore 21 is narrowed and after inserting the conductor connecting bolt 30 shown in Figure 3 in a in the bolt 30 provided groove 32 can be latched. The central axes of the bores 21 and 22 close an angle of 90 °. The corner connector 20 can in particular be cast in one piece, in particular made of copper. However, it is also possible to produce this from two parts. The shape of the corner connector 20 is advantageously chosen so that a smaller one to the cable insulation or the cable side Bore adapted cylinder at right angles into a larger one to the end diameter of the implementation the system adapted cylinder of the corner connector passes.

In Figure 3, the insertion part of the conductor connecting bolt 30 is 33, which is for the press connection with the conductor designated sleeve-shaped part with 34.

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FIG. 4 shows the adapter pin 36 belonging to the through-hole 22; his male part is at 37 denotes the connecting part indicating the implementation with 38. This connecting part 38 can also be smooth cylindrical for plug-in connection or contain a thread, for example (as shown), depending on the connection conditions for the implementation of the installation. With this training it is possible for the first time To provide angled connector for device-side plug and screw connections, which is a considerable Promises an advantage and through the selected combination of two pluggable parts, namely the conductor connection bolt 30 and the adapter pin 36 is realized.

Claims (6)

KABEL- UND LACKDRAHTFABRIKEN GMBH CASTERFELDSTR. 62-64 KABELtIRAMT 6800 MANNHEIM- NECKARAU K + D - 82706 G July 28, 1982 ANGLE CONNECTOR TO THE PRO CHE 1. Angular connector for connecting a shielded, plastic-insulated power cable to an electrical system provided with a housing with a bushing, in particular to one Transformer or switchgear, with an insulating body (10) made of elastic plastic, preferably t * ■ jr 1 1 10 15th 20th 25th 82706 G wise silicone rubber, in the bore (12) there is a metallic corner connector (20) each with one Connection possibility for the conductor of the cable and the system is located, characterized in that that the corner connector (20) both cable and device side for a plug connection is equipped and has two corresponding bores (21, 22) that are appropriate to the angle and diameter. 2. Angled connector fitting according to claim 1, characterized in that the cable-side bore (21) can be locked. 3. Angular connector fitting according to claim 2, characterized in that the cable-side bore (21) has a groove (27) with an inserted Has snap ring (26) which narrows the bore diameter in the unloaded state and after insertion of the conductor connection bolt (30) can be snapped into a groove (32) made in this. 4. Angled connector fitting according to one of the claims 1 to 3, characterized in that in the implementation-side Bore (22) of the corner connector (20) an adapter pin (36) can be inserted into the implementation can be plugged in or screwed in. t I
II 82706 G 5. Angular connector fitting according to one of claims 1 to 4, characterized in that that the corner connector (20) is made of copper, in particular is cast, and on the cable side merges into a cylinder, the diameter of which corresponds to the diameter of the insulation of the maximum Cable type does not exceed, and on the bushing side merges into a cylinder, the diameter of which expediently corresponds to the end diameter of the insulating body of the implementation. 6. Angled connector fitting according to one of claims 1 to 5 _; characterized in that the insulating body (10) is surrounded by a metallic housing (40) which can be connected to earth.