Devices with metal clamps designed as pipe fittings
A metal wiring, wiring clip technology, applied in the direction of electrical component connection, connection, conductive connection, etc., can solve problems such as reducing bearing capacity
Inactive Publication Date: 2016-05-04
NEXANS
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Problems solved by technology
This known screw has the already stated disadvantage of reducing the load-bearing capacity to a large extent due to the large number of predetermined breaking points
Furthermore, if a partially sheared screw is to be prevented from protruding interferingly from the terminal clamp, such screws may only be used to secure conductors of the specified size
Method used
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[0045] The abbreviation "screw" is used below instead of "clamping screw". The contact part of the screw consists of a sufficiently strong, preferably well-conducting metal, for example brass or an aluminum alloy. The operating part of the screw may for example consist of steel. In addition to the monolithic implementation form, the fixed part can also be replaced by a two-part or three-part implementation form.
[0046] figure 1 Denotes a terminal clip 1 designed as a tube, for example made of tin-plated aluminum alloy. It has two threaded holes, wherein a screw 2 with an external thread is installed respectively. The electrical conductors 3 and 4 of the two cables 5 , which relate in particular to power cables, protrude into the terminal clamp 1 from two different sides. In the assembled state, they are fixed in the terminal clamp 1 by means of screws 2 and are thus electrically conductively connected to one another. According to a preferred embodiment, the electrical l...
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An arrangement with a clamp (1) constructed as a pipe piece of metal and at least one clamping screw (2) for fastening an electrical conductor (3,4) in the clamp is set forth, which has in its wall at least one throughhole provided with a thread (9) for receiving the clamping screw. The clamping screw has a tubular contact part (7) provided with an external thread (9) and adapted to be screwed into the throughhole of the clamp, wherein the contact part (7) has at its one axial end a contact surface (10) for contacting an electrical conductor located in the clamp and along its extension with a circumferential intended breaking point (11) a significant distance from the contact surface. The clamping screw additionally has an actuating member (8) composed of an upper part (19) and a lower part (20) which can be screwed onto the contact part (7) and is equipped with an internal thread (14) and a contact surface for the tool, wherein the upper part (19) is constructed as a cap with a bottom area (13) extending transversely of its axial direction. The actuating member (8) is screwed in the assembly position onto the contact part (7) in such a way that the end face (12) of the contact part (7) facing away from the contact surface (10) at the bottom area (13) of the upper part (19) of the actuating member (8).
Description
technical field [0001] The invention relates to a device comprising a metal terminal clamp designed as a tube and at least one clamping screw for fixing an electrical conductor inside said terminal clamp, the terminal clamp having at least one threaded in its wall for Through-hole for mounting a clamping screw having a force-limiting ring-shaped predetermined breaking point on its nail body, the force is applied to the clamping screw by means of a tool mounted on the clamping screw that acts to rotate around its axis (EP0750723B1) . Background technique [0002] Clamping screws (screws for short) which are also called "breaking screws" or "shearing screws" in such devices are used, for example in power engineering for connecting electrical conductors of two power cables. To achieve and maintain good conductive contact requires a solid connection between the wires of the two cables and the tubular metal lugs into which the wires are inserted. Such a terminal clip advantageo...
Claims
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IPC IPC(8): H01R11/09H01R4/36F16B31/00
Inventor G.斯托克V.马克格拉夫J.克劳斯M.贝什M.扎普夫R.希鲍尔
Owner NEXANS