Arrangement with a Connector for at Least One Electrical Cable

Abstract

An arrangement with a connector for at least one electrical cable is indicated, that is surrounded by a cover, having an electrical conductor, which has a plurality of individual wires. The connector has a pipe shaped clamping body composed of metal to receive the conductors of the cables, in the walls of which at least one position with two threads is provided, mounted with interacting throughholes, their axis V-formed extended at an angle, lying between 100 and 180 . In the mounted position the clamping screws are attached tightly in the throughholes of the conductor, which act in the same area of the conductor. In the mounted position, the clamping screws screwed in the two throughholes are rounded on their points each with a radius lying between 0.15D and 0.5D, with the diameter D of the threaded part of the clamping screws.

Claims

1. A connector for connecting one or more electrical cables, the cables being surrounded by a cover and having electrical conductors that are formed from a plurality of individual wires, said connector comprising: a pipe shaped clamping body made of metal for receiving said electrical conductors of the cables, wherein walls of said clamping body, at at least one position along the length of the clamping body, have two throughholes with threads, said throughholes having longitudinal central axes that extend V-shaped through said walls at an angle relative to one another, the angle lying between 100 and 180, wherein when said conductor is in a mounted position, two clamping screws are arranged in the throughholes to securely fasten the conductor, wherein when said conductor is in the mounted position, the two clamping screws screwed in the throughholes bear upon a same side of the conductor located in the clamping body at a same longitudinal position along a long axis of the conductor and wherein both of the two clamping screws, on a front peak that contacts the conductor, are rounded, with a radius that lies between 0.15D and 0.5D, D being the diameter of a threaded part of the two clamping screws.

2. Connector according to claim 1, wherein the angle enclosed by the axes of the two throughholes is 120.

3. Connector according to claim 1, wherein the radius of the rounding of the peak for the two clamping screws is 0.28D.

4. Connector according to claim 1, wherein the clamping body is constructed as the pipe to connect two electrical cables.

5. Connector according to claim 1, wherein the clamping body is locked on one front side and has on the one front side an electrical contact element protruding outwards.

6. Connector according to claim 1, wherein said connector is configured to connect the at least one electrical cable with the plurality of individual wires composed of aluminum or aluminum alloy.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Embodiments of the present subject matter are illustrated in the drawings.

[0016] In the drawings:

[0017] FIGS. 1 and 2 show purely schematically two different clamping bodies for an arrangement according to the invention.

[0018] FIGS. 3 to 5 show a sectional view through a usable connector in the arrangement according to the invention.

DETAILED DESCRIPTION

[0019] FIGS. 1 and 2 generally illustrate two different connectors for two electrical cables on one side and for one electrical cable on the other side. In this sense, one connector for two electrical cables 1 and 2 where there may be energy cables to act on is schematically illustrated. There is a clamping body 3 constructed as a pipe composed of tinned aluminum alloy, for example. The clamping body 3 has two threaded holes in which in each is arranged a clamping screw 4 provided with an external thread. Out of two different sides the electrical conductors 5 and 6 of the two electrical cables 1 and 2 protrude into the clamping body 3. In the mounted position, the conductors 5 and 6 are secured in the clamping body 3 through the clamping screw 4 and thereby electrically conductively connected to each other. They are in the preferred embodiment constructed as multi wired conductors and are composed, for example, of aluminum or copper.

[0020] In the embodiment of the connectors according to FIG. 2, is shown instead of the pipes 3, a pipe shaped clamping body 7 which is locked on a front side. An electrical contact element sticks out from this front side, which serves to attach an electrical device. Accordingly, only the conductor 6 of the cable 2 is introduced in the clamping body 7 and secured through the clamping screw.

[0021] Only the clamping body 3 is illustrated in cross section in FIGS. 3 to 5. But it could also be the clamping body 7. In the clamping body 3 the electrical conductor 6 is arranged and secured through the two clamping screws.

[0022] The conductor 6 is advantageously composed of a plurality or individual wires of aluminum or an aluminum alloy, that are stranded with each other or generally speaking are meshed. The individual wires can, for example, also be composed of copper or another good electrically conductive material. It should have as a high count, at least 300 individual wires. In the previously described embodiment the conductor 6 has approximately 1400 individual wires and an electrically affective cross section of approximately 400 mm.sup.2. This embodiment of the conductor 6 also basically applies to the conductor 5.

[0023] The two clamping screws 4 provided with an external thread are screwed into the throughholes 9 and 10 of the clamping body 3, which is equipped with threading. The axes A1 and A2 of the two throughholes 9 and 10 run V-formed toward each other extended at an angle , which can lie between 100 and 180. The angle advantageously lies at 120.

[0024] The two clamping screws 4 are illustrated in the drawing as shear screws. According to FIG. 6, they have a rounded point 11 with which it lies against conductor 6 in the mounted position. The point 6 of the clamping screw 4 can be rounded with a radius R, which can lie between 0.15D and 0.5D. As a result, D is the diameter of the threaded part of the clamping screws 4. The radius R with the point 11 of the clamping screws 4 is rounded and lies advantageously at 0.28D.

[0025] For the final installation of the conductor 6 in the clamping body 3 the clamping screws 4 are rotated on their axes. As a result, they push into the conductor 6 and push the individual wires of the same together and, because of their inclined path relative to each other, into the same area of the conductor 6. At the same time, the individual wires are pushed together and because of the rounded point 11, the clamping screws are not damaged. Only the oxide layer surrounding the individual wires will be broken off. The final position of the clamping screws 4 is illustrated in FIGS. 4 and 5 where, according to FIG. 5, the top part of the clamping screws 4 is sheared off.