CN202474267U

CN202474267U - Copper-aluminum transition connecting terminal

Info

Publication number: CN202474267U
Application number: CN2012200947991U
Authority: CN
Inventors: 邱玉林; 郭晋晖
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-03-14
Filing date: 2012-03-14
Publication date: 2012-10-03
Anticipated expiration: 2022-03-14

Abstract

The utility model discloses a copper-aluminum transition connecting terminal, and belongs to a copper-aluminum transition connecting terminal for the connection of an aluminum cable and an aluminum alloy cable in the power industry. The copper-aluminum transition connecting terminal consists of a copper tube and a copper connecting end, which are welded. The widths of the copper connecting end corresponding to the nominal sections of a conductor of the same series are correspondingly decreased respectively, and the thicknesses of the copper connecting end corresponding to the nominal sections of the conductor of the same series are correspondingly increased respectively. The copper connecting end consists of a plate and a columnar part, which are integrated. The welding surface of the copper connecting end and the aluminum tube is circular. According to the connecting terminal, a straight part connected with equipment such as a switch can be narrowed under the condition of ensuring electrical conductivity, the thickness is correspondingly increased, and a welding area is also enlarged. The copper-aluminum transition connecting terminal has the characteristics of wide application range and strong strength.

Description

A kind of copper-aluminium transition binding post

Technical field

The utility model relates to the binding post that a kind of electric power transfer cable connects usefulness, is applied to the copper-aluminium transition binding post that aluminium cable and aluminium alloy cable connect usefulness specifically.

Background technology

In electric power transfer, aluminium cable is used always to some extent, and the aluminium alloy cable is used also more and more widely, and its splicing ear is divided into aluminium terminal and copper-aluminium transition terminal.But existing aluminium and the straight coupling part of copper-aluminium transition terminal front end are too wide; Can not well realize connecting at small space; Many times can't match on the wiring positions such as switch at all; Need transfer by other annexes, cause problems such as the wiring difficulty is big, cost increases, the hidden danger point increases.

The utility model content

The purpose of the utility model is to provide a kind of and satisfying under the prerequisite of ampacity to prior art problem and shortage part, shortens copper terminals width so that the copper-aluminium transition binding post of realizing at small space relatively connecting.

This novel purpose is achieved in that a kind of copper-aluminium transition binding post, is welded with the copper terminals by aluminum pipe to constitute, and said copper terminals are corresponding to mm ²The unit of conductor nominal cross 16,25,35,50,70,95,120,150,185,240,300,400 of meter is that the width of mm is respectively 10 ± 1.5,12 ± 1.5,14 ± 1.5,16 ± 1.5,19 ± 1.5,20 ± 1.5,22 ± 1.5,25 ± 1.5,28 ± 1.5,32 ± 1.5,36 ± 1.5,36 ± 2, and corresponding to mm ²The unit of the above-mentioned conductor nominal cross of meter is that the thickness of mm is respectively 3.5～5,3.3～4.8,3.8～5.3,3.7～5.2,4.2～5.7,5.2～6.7,5.7～7.2,6～8,6.6～8.6,7.1～9.1,8.1～10.1,8.7～11.7.

Above-mentioned copper terminals are by a plate and a column is integrated forms, and the solder side of copper terminals and aluminum pipe is a circle.

Another purpose of the utility model is to provide a kind of and satisfying under the prerequisite of ampacity to prior art problem and shortage part, shortens copper terminals width so that the copper-aluminium transition binding post of realizing at small space relatively connecting.

This another novel purpose is achieved in that a kind of copper-aluminium transition binding post, is welded with the copper terminals by aluminum pipe to constitute, and said copper terminals are corresponding to mm ²The unit of conductor nominal cross 16,25,35,50,70,95,120,150,185,240,300,400 of meter is that the width of mm is respectively 16 ± 1.5,16 ± 1.5,18 ± 1.5,20 ± 1.5,23 ± 1.5,24 ± 1.5,26 ± 1.5,28 ± 1.5,30 ± 1.5,34 ± 1.5,36 ± 2,40 ± 2, and corresponding to mm ²The unit of the above-mentioned conductor nominal cross of meter is that the thickness of mm is respectively 2.2～3.7,2.5～4,3～4.5,3～4.5,3.5～5,4.3～5.8,4.8～6.3,5.3～7.3,6.2～8.2,6.7～8.7,8.1～10.1,8.1～11.1.

Compared with prior art, the utlity model has following characteristics:

1, under the situation that guarantees conductive capability, the straight portion width W narrower (comparing) that the copper terminals are connected with switch, copper bar, equipment etc., convenient in application with existing GB.

2, copper and aluminium welding connects face and changes into the column cross section by existing rectangular copper (panel thickness of terminals); Solder side increases on the one hand; The solder side outer rim is circular on the other hand; Its stress distribution is even, and the stress distribution of existing rectangle solder side is inhomogeneous, and the position that stress is concentrated is prone to take place the destruction of welding position.

This binding post has good integrity, the characteristics that intensity is better and conductive capability is strong.

Description of drawings

Fig. 1, Fig. 2 are respectively the front view and the vertical views of existing binding post.

Fig. 3, Fig. 4 are respectively the front view and the vertical views of this novel connecting terminal.

Embodiment

Among Fig. 1, Fig. 2, aluminum pipe 10 is a rectangle with the solder side 30 of copper terminals 20, and the copper terminals are a plate, and this solder side 30 is the cross section of copper terminals plate.

Among Fig. 3, Fig. 4, aluminum pipe and copper terminals are through being welded into an integral body, and this welding manner makes part strength and conductive capability good.The aluminum pipe part guarantees crimping tightness and conductive capability with reference to GB DTL molded dimension.Copper terminals width (W) is with reference to GB DT or DTM molded dimension, copper-aluminium transition terminal copper terminals width (W) size below 95 and 95 squares consistent with the DT of its corresponding little specification or DTM molded dimension (the terminal width dimensions like 50 squares on the width of 70 squares of copper-aluminium transition terminals and DT or DTM type is consistent); Copper-aluminium transition terminal copper terminals width (W) size more than 120 and 120 squares consistent with the DT of its corresponding little two specifications or DTM molded dimension (the terminal width dimensions like 95 squares on the width of 150 squares of copper-aluminium transition terminals and DT or DTM type is consistent).For guaranteeing enough current-carrying areas, copper terminals thickness e (referring to Fig. 3) mentions the DT of corresponding specification with reference to the front or the current-carrying area of DTM type calculates.

GB copper-aluminium transition binding post (DTL type):

This patent copper-aluminium transition terminal (size one)

Patent copper-aluminium transition terminal (size two):

Like Fig. 3, shown in Figure 4, aluminum pipe 1 that processes and copper terminals 2 are through being welded into an integral body.Copper terminals 2 are by a plate and a column is integrated forms, and copper terminals 2 are a circle with the solder side 3 of aluminum pipe 1.

During use, cable is inserted in the aluminum pipe 1, compress through Press Plier, copper terminals flat part tap switch, copper bar, equipment etc. can conduct electricity transmission.

Claims

1. copper-aluminium transition binding post is made up of aluminum pipe (1) and copper terminals (2) welding, it is characterized in that, said copper terminals (2) are corresponding to mm ²The unit of conductor nominal cross 16,25,35,50,70,95,120,150,185,240,300,400 of meter is that the width of mm is respectively 10 ± 1.5,12 ± 1.5,14 ± 1.5,16 ± 1.5,19 ± 1.5,20 ± 1.5,22 ± 1.5,25 ± 1.5,28 ± 1.5,32 ± 1.5,36 ± 1.5,36 ± 2, and corresponding to mm ²The unit of the above-mentioned conductor nominal cross of meter is that the thickness of mm is respectively 3.5～5,3.3～4.8,3.8～5.3,3.7～5.2,4.2～5.7,5.2～6.7,5.7～7.2,6～8,6.6～8.6,7.1～9.1,8.1～10.1,8.7～11.7.

2. a kind of copper-aluminium transition binding post according to claim 1 is characterized in that, said copper terminals (2) are by a plate and a column is integrated forms, and copper terminals (2) are a circle with the solder side (3) of aluminum pipe (1).

3. copper-aluminium transition binding post is made up of aluminum pipe (1) and copper terminals (2) welding, it is characterized in that, said copper terminals (2) are corresponding to mm ²The unit of conductor nominal cross 16,25,35,50,70,95,120,150,185,240,300,400 of meter is that the width of mm is respectively 16 ± 1.5,16 ± 1.5,18 ± 1.5,20 ± 1.5,23 ± 1.5,24 ± 1.5,26 ± 1.5,28 ± 1.5,30 ± 1.5,34 ± 1.5,36 ± 2,40 ± 2, and corresponding to mm ²The unit of the above-mentioned conductor nominal cross of meter is that the thickness of mm is respectively 2.2～3.7,2.5～4,3～4.5,3～4.5,3.5～5,4.3～5.8,4.8～6.3,5.3～7.3,6.2～8.2,6.7～8.7,8.1～10.1,8.1～11.1.

4. a kind of copper-aluminium transition binding post according to claim 3 is characterized in that, said copper terminals (2) are by a plate and a column is integrated forms, and copper terminals (2) are a circle with the solder side (3) of aluminum pipe (1).