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Method for connecting an electrical aluminum wire with an aluminum tube

A technology for electrical wires and pipes, used in conductive connections, connections, vehicle connectors, etc., to solve problems such as no welding connections

Active Publication Date: 2019-03-19
STRUNK CONNECT AUTOMATED SOLUTIONS GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But since the aluminum itself melts already at about 660°C, the high temperature used to melt the oxide layer will cause the aluminum core to vaporize after melting the oxide layer, thus not producing a usable solder connection

Method used

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  • Method for connecting an electrical aluminum wire with an aluminum tube
  • Method for connecting an electrical aluminum wire with an aluminum tube

Examples

Experimental program
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Effect test

Embodiment Construction

[0036] figure 1 An electrical wire 1 is shown, which has an aluminum stranded wire 2 surrounded by an insulator 3. The individual wires of the aluminum stranded wire 2 have been shown. In addition, a pipe 4 is shown, the aluminum stranded wire 2 of the stripped end of the electric wire 1 is pushed into the open first end 5 of the pipe, and the coupling element 7 is molded on the second end 6 of the pipe Place.

[0037] figure 2 The electrical lead 1 and the coupling element 7 after the extrusion and welding process are shown. The first pressing area 9 can be seen in the area of ​​the end 8 of the aluminum stranded wire 2. Here, the aluminum stranded wire 2 is clamped by the pipe 4 in such a way that the individual wires of the aluminum stranded wire 2 can no longer move relative to each other. In the direction of the insulator 3, the second pressing area 10 can be seen next to the first pressing area 9. In the second squeezing area 10, through the extrusion process and thro...

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PUM

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Abstract

The present invention relates to a method for connecting an electrical aluminum wire with an aluminum tube, and specifically a method for connecting an electrical wire (1) having at least one strand made of aluminum with a connector element (7) having a tube (4) made of aluminum should be improved that all areas of the electrical wire can be more completely welded to the connector element. It is proposed the following steps: inserting a preferably stripped area of the electrical wire into a tube, crimping the tube where an end region (8) of the electrical wire is located such that the at leastone strand is held in the tube and a relative motion between the tube and the at least one strand is prevented, crimping the tube where a second area of the stripped electrical wire is arranged, thesecond area being further from the end of the electrical wire than a first crimped area (9), wherein a change of the cross section and an elongation of the least one strand are caused. Resistance welding the tube to the at least one strand in a second crimped area (10).

Description

Technical field [0001] The invention relates to a method for connecting an electric wire with at least one wire made of aluminum or aluminum alloy with a coupling element made of aluminum or the same aluminum alloy with a pipe or sleeve. Background technique [0002] For the use of electrical wires, especially in motor vehicles, it is known to use copper or copper alloys. However, copper or copper alloys have a high weight. In order to save weight and therefore fuel costs, it is known, for example, from document EP 2 362 491 B1 to use aluminum wires, which are equipped with coupling elements made of other materials. [0003] In motor vehicles, electrical connections are known in which the connection elements are connected to conductors (Leiter), for example by crimping and / or soldering. Such a connection with a certain resistance is basically sufficient for many applications. But if, for example, for electric vehicles, for example, in the high-voltage area of ​​the car, electric...

Claims

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Application Information

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IPC IPC(8): H01R43/02H01R43/28
CPCH01R43/0214H01R43/28H01R4/183H01R4/187H01R2201/26H01R4/625H01R43/048
Inventor O.斯特朗N.朗贝格
Owner STRUNK CONNECT AUTOMATED SOLUTIONS GMBH & CO KG