CN2607674Y

CN2607674Y - Wedge elastic wire clamp

Info

Publication number: CN2607674Y
Application number: CN 03243438
Authority: CN
Inventors: 吴根喜; 吴铮
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-04-02
Filing date: 2003-04-02
Publication date: 2004-03-24
Anticipated expiration: 2013-04-02

Abstract

The utility model relates to a wedge-shaped elastic wire clamp which comprises a C-shaped shell body and a tongue block, wherein the tongue block is in wedge-shaped match and connection with the shell body; the upper end and the lower ends of the tongue block are provided with grooves which form cavities used for the penetrating and the insertion of conducting wires together with the inner wall of the shell body; the shell body is composed of an aluminum layer of the shell body and a copper layer of the shell body, wherein the aluminum layer of the shell body is fixedly connected with the copper layer of the shell body; the tongue block is composed of an aluminum layer of the tongue block and a copper layer of the tongue block, wherein the aluminum layer of the tongue block is fixedly connected with the copper layer of the tongue block. The laminating face of the shell body and the laminating face of the tongue block are at the same plane and can be at the different planes; a mark line can also be arranged on the tongue block. The utility model has the advantages that an aluminum wire is contacted with the aluminum layer when two conducting wires are connected; the copper wire is contacted with the copper layers; the electric erosion can not be generated; in this way, the service life is long, and the connecting performance is good. Thereby, the connected conducting wires obtain appropriate clamping force; thereby, the overload capacity and the heat cycle serviceability of a wire clamp are greatly improved. The size of the selected wire clamp is whether matched with the conducting wires or not can be checked, which ensures the installation quality.

Description

Wedge elastic wire clamp

Technical field

The utility model relates to the device that two leads connect, the Wedge elastic wire clamp of particularly a kind of aluminum bronze electric wire transition.

Background technology

At present, the wire clamp that uses on the market, its tongue piece, housing all adopt aluminium to make, and this wire clamp is suitable for the connection between the aluminum conductor.But in the electric power practice of China, in the construction of long distance power transmission and regional network, all adopt aluminum conductor, and when electric power is introduced the user, adopt copper conductor; At this moment the wire clamp that uses full aluminium to make, in the place that aluminium contacts with copper, because the difference of aluminium and copper character can produce following problem: 1, the oxide-film that produces on the aluminium surface is the non-conductor of electricity, can reduce the ability of circuit conduction; In a humid environment, can become big owing to the galvano-cautery between the aluminum bronze causes the resistance of contact point.2, how the lead that connects is obtained suitable clamping force, to guarantee installation quality.

Summary of the invention

The purpose of this utility model is to solve above-mentioned existing problem, and provides a kind of aluminum bronze lead switching performance good, and service time is long, and can guarantee the Wedge elastic wire clamp of installation quality.

The utility model is achieved through the following technical solutions for achieving the above object.This Wedge elastic wire clamp, include the housing and the tongue piece of C shape, the tongue piece is wedge-like engagement with housing and is connected, the two ends up and down of tongue piece are provided with groove and are formed for interting the cavity of lead with the inwall of housing, housing is made of housing aluminium lamination and housing copper layer, and the housing aluminium lamination is fixedlyed connected with housing copper layer; The tongue piece is made of tongue piece aluminium lamination and tongue piece copper layer; Tongue piece aluminium lamination is fixedlyed connected with tongue piece copper layer.Like this, when connecting two leads, aluminum steel contacts with aluminium lamination, and copper cash contacts with the copper layer, galvano-cautery can not take place.

Wedge elastic wire clamp provided by the utility model, housing aluminium lamination and housing copper layer, between tongue piece aluminium lamination and the tongue piece copper layer by solder joints together, engage between aluminium lamination and the copper layer like this more firmly closely; The branch aspect of housing and the branch aspect of tongue piece at grade also can be not at grade; Can also be provided with markings on the tongue piece, the position of markings is the intensity according to material, and the clamping degree of lead and definite is determined the high-quality that wire clamp is installed.

The effect that the utility model is useful: 1, aluminum steel contacts with aluminium lamination, and copper cash contacts with the copper layer, galvano-cautery can not take place, and the time of Shi Yonging is good than length and switching performance like this.2, can make the lead of connection obtain suitable clamping force, thereby improve the overload capacity of wire clamp, thermal cycle serviceability greatly.3, the loss of energy can not only be reduced, and the equipment fault that causes owing to the wire clamp loose contact can be thoroughly changed.4, can check whether selection wire clamp and conductor size mate simultaneously again, to guarantee installation quality.

Description of drawings

Fig. 1 is a main TV structure of the present utility model portion view;

Fig. 2 is an A-A sectional structure schematic diagram of the present utility model;

The accompanying drawing identifier declaration

The 1-housing, 1-1 housing aluminium lamination, 1-2 housing copper layer, 2-tongue piece, 2-1 tongue piece aluminium lamination, 2-2 tongue piece copper layer, the 3-groove, 4-divides aspect, 5-cavity, 6-markings.

Embodiment

Below in conjunction with accompanying drawing this enforcement is further described.This Wedge elastic wire clamp is made housing aluminium lamination 1-1 with aluminum, the part that its shape branch aspect as shown in Figure 2 is above; Make housing copper layer 1-2 with copper product, its shape part of branch aspect below 4 as shown in Figure 2.Housing aluminium lamination 1-1 and housing copper layer 1-2 welded together just made C shape housing 1.Make tongue piece aluminium lamination 2-1 with aluminum, the part that its shape branch aspect as shown in Figure 3 is above; Make tongue piece copper layer 2-2 with copper product, the part that its shape branch aspect as shown in Figure 2 is above.Tongue piece aluminium lamination 2-1 and tongue piece copper layer 2-2 welded together just made tongue piece 2.The branch aspect 4 of housing aluminium lamination 1-1 and housing copper layer 1-2 is arranged on the different planes with the branch aspect 4 of tongue piece aluminium lamination 2-1 and tongue piece copper layer 2-2.Tongue piece 2 is wedge-like engagement with housing 1 and is connected, and the two ends up and down of tongue piece 2 are provided with groove 3 and are formed for interting the cavity 5 of lead with the inwall of housing 1.Method with groove or colour band on two planes of tongue piece 2 is provided with markings 6, and the position of markings is the intensity according to material, and the clamping degree of lead and definite is determined the high-quality that wire clamp is installed.During use, aluminum steel is put into housing aluminium lamination 1-1, copper cash is put into housing copper layer 1-2, and it is just passable to insert tongue piece 2, and the elastic force of C shape housing 1 puts on and connects suitable, constant clamping force on the lead.

Claims

1. Wedge elastic wire clamp, include the housing (1) and the tongue piece (2) of C shape, tongue piece (2) is wedge-like engagement with housing (1) and is connected, the two ends up and down of tongue piece (2) are provided with groove (3) and are formed for interting the cavity (5) of lead with the inwall of housing (1), it is characterized in that: housing (1) is made of housing aluminium lamination (1-1) and housing copper layer (1-2), and housing aluminium lamination (1-1) is fixedlyed connected with housing copper layer (1-2); Tongue piece (2) is made of tongue piece aluminium lamination (2-1) and tongue piece copper layer (2-2); Tongue piece aluminium lamination (2-1) is fixedlyed connected with tongue piece copper layer (2-2).

2. Wedge elastic wire clamp according to claim 1 is characterized in that: described housing aluminium lamination (1-1) and housing copper layer (1-2), between tongue piece aluminium lamination (2-1) and the tongue piece copper layer (2-2) for being welded to connect.

3. Wedge elastic wire clamp according to claim 1 is characterized in that: tongue piece (2) is provided with markings (6).

4. according to claim 1 or 2 or 3 described Wedge elastic wire clamps, it is characterized in that: the branch aspect (4) of housing aluminium lamination (1-1) and housing copper layer (1-2) is arranged on the different planes with the branch aspect (4) of tongue piece aluminium lamination (2-1) and tongue piece copper layer (2-2).