CN203013966U

CN203013966U - Bolt-type Cu-Al transition equipment wire clamp

Info

Publication number: CN203013966U
Application number: CN 201220583537
Authority: CN
Inventors: 叶绿野
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-11-01
Filing date: 2012-11-01
Publication date: 2013-06-19
Anticipated expiration: 2022-11-01

Abstract

The utility model relates to a bolt-type Cu-Al transition equipment wire clamp, which comprises a main line board and a wire guide plate fixed on the main line board through bolts. A wire disposing duct is formed between the main line board and the wire guide plate. The main line board has an aluminium base plate and a copper plate which are fixed by welding and form a welding line, and the welding line is wound with a metal conductive layer. According to the bolt-type Cu-Al transition equipment wire clamp, the welding line is wound with a metal conductive layer, so that when fracture due to large current or heat occurs between the aluminium base plate and the copper plate, the metal conductive layer can be used as a current carrier from the aluminium base plate to the copper plate effectively, and accordingly, the bolt-type Cu-Al transition equipment wire clamp achieves a stable and reliable effect and the service life is further prolonged.

Description

The bolt type copper aluminium transition equipment cable clamp

Technical field

The utility model relates to a kind of contact gold utensil, relates in particular to a kind of bolt type copper aluminium transition equipment cable clamp.

Background technology

in prior art, the main line plate of bolt type copper aluminium transition equipment cable clamp makes aluminium base and copper coin be fixed together by the mode of welding, therefore, in actual the use, the anti-fracture performance of described copper-aluminium transition equipment cable clamp is particularly crucial, the coefficient of expansion due to copper and aluminium, conductivity, the physical properties such as density are different, therefore the strength ratio on the composition surface of copper aluminium is more fragile, especially at wind and rain, thunder and lightning, breaking under erosion of the environmental factors such as moisture, coordinate under the long-time running of large electric current, easily the high temperature heating causes the product fracture, cause various power grid accidents, large area blackout even, this phenomenon is one and is easy to unheeded major safety risks, also therefore normal engineer operation is produced impact greatly.

Summary of the invention

The purpose of this utility model is to overcome the defective of prior art, provides a kind of simple in structure, reliable and stable and can effectively improve the bolt type copper aluminium transition equipment cable clamp in useful life.

For achieving the above object, the utility model adopts a kind of bolt type copper aluminium transition equipment cable clamp, comprise main line plate and the tension disc that is bolted on the main line plate, and form trunking between described main line plate and tension disc, described main line plate has aluminium base and copper coin, fix and form weld seam by the mode of welding between this aluminium base and copper coin, be wound with metal conductor layer on the weld seam of described main line plate.

Concrete, described metal conductor layer is preferably copper strips, and is wound with at least two-layer copper strips on described weld seam.

by the technique scheme improvements over the prior art, owing to being wound with the layer of metal conductor layer in the weld seam periphery, make position while welding more firm because being subject to pressing of metal conductor layer, in the long-term use of wire clamp, even weld seam produces the phenomenon of splitting, also can delay because of the support effect of the copper coin around the metal conductor layer butt welded seam of peripheral coiling and aluminium base the continuation fracture of weld seam, and then the useful life of prolongation wire clamp, and after being preferably conductor layer, even aluminium base and copper coin rupture because of reasons such as large electric current or heatings in the commissure, this metal conductor layer also can effectively serve as electric current and be transitioned into the carrier of copper coin from aluminium base, thereby not only reach the reliable and stable effect of bolt type copper aluminium transition equipment cable clamp of the present utility model, and further improved useful life.

Description of drawings

Fig. 1 is the front view of the utility model embodiment.

Fig. 2 is the vertical view of Fig. 1.

Embodiment

as shown in Fig. 1-2, specific embodiment of the utility model is a kind of bolt type copper aluminium transition equipment cable clamp, comprise main line plate 1 and be fixed on tension disc (not giving sign in accompanying drawing) on main line plate 1 by bolt 2, and form trunking (not giving sign in accompanying drawing) between described main line plate 1 and tension disc, described main line plate 1 has aluminium base 10 and copper coin 11, fix and form weld seam 100 by the mode of welding between this aluminium base 10 and copper coin 11, be wound with metal conductor layer 3 on the weld seam 100 of described main line plate, in the present embodiment, described metal conductor layer 3 is preferably copper strips, and this copper strips is wound with two-layer at described weld seam 100 places.

Above demonstration and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications; these changes and improvements all fall in claimed the utility model scope, and claim and the equivalent thereof appended by the claimed scope of the utility model define.

Claims

1. bolt type copper aluminium transition equipment cable clamp, comprise main line plate and the tension disc that is bolted on the main line plate, and form trunking between described main line plate and tension disc, described main line plate has aluminium base and copper coin, fix and form weld seam by the mode of welding between this aluminium base and copper coin, it is characterized in that: be wound with metal conductor layer on the weld seam of described main line plate.

2. bolt type copper aluminium transition equipment cable clamp according to claim 1, it is characterized in that: described metal conductor layer is copper strips.

3. bolt type copper aluminium transition equipment cable clamp according to claim 2, is characterized in that: be wound with at least two-layer copper strips on described weld seam.