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Conductive connecting method for first and second electric conductor

A technology of conductive connection and electric conductor, applied in the field of conductive connection of the first and second electric conductors, can solve the problems of high contact resistance, expensive splicing, etc.

Inactive Publication Date: 2004-07-07
NEXANS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

it makes stitching expensive
The connection has a relatively high contact resistance, which can cause many problems during the extrusion process that applies the insulation to the conductor

Method used

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  • Conductive connecting method for first and second electric conductor
  • Conductive connecting method for first and second electric conductor
  • Conductive connecting method for first and second electric conductor

Examples

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Embodiment Construction

[0038] The first and second embodiments of the method of the invention are explained using ultrasonic welding. But other welding methods without additional welding material, like TIG (tungsten inert gas) welding, laser welding and HF (high frequency) welding are also included.

[0039] Furthermore, the method is explained with the connection of resistive conductors and copper conductors.

[0040] However, other conductors made of different materials, such as alloys, are also included.

[0041] figure 1 A heating wire 1 is schematically shown, which is installed in the floor of a building (not shown) in a meandering shape. The heating wire 1 comprises a resistance conductor and a copper conductor (not visible), which are connected to each other at a splicing area 4 .

[0042] The conductors are enclosed in a sheath 1' of insulating material applied by an extrusion line (not shown). By way of example only, the diameter of the resistive conductor is smaller than that of the c...

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PUM

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Abstract

A method for conductively connecting first and second electrical conductors (2, 3) is described which consist of different materials. In carrying out the method the ends of the first and second conductors are brought into mechanical contact with each other in an overlapping position. The first and second conductors (2, 3) then are connected to each other by welding without feeding of additional welding material. Finally the overlapping area (4) is formed mechanically to achieve a smooth width transition between the first and second conductors (2, 3).

Description

technical field [0001] The invention relates to a method for the electrically conductive connection of first and second electrical conductors made of different materials. Background technique [0002] For example, this method is used for the connection of the low-resistance conductors of heating wires and the so-called "cold conductors" made of copper for connection to the power supply. The resistance conductor is generally made of NiCr alloy. Such conductors cannot be joined to copper conductors by conventional soldering methods. Soldering these two conductors can cause problems with carbon inclusions in the splice area reducing conductivity. The same problem occurs when other electrical conductors of different materials are connected. [0003] According to the known method of EP 0 852 245 A2 involving the connection of a small resistance conductor to a large copper conductor, the first end of the copper conductor is reduced to a small diameter. The two conductors are t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/00H01R4/02H01R4/62H01R43/02
CPCH01R4/625Y10T29/49083H01R43/0207Y10T29/49206H01R4/021Y10T29/49149Y10T29/49179Y10T29/49208H01R4/029Y10T29/49799Y10T29/49201
Inventor 奥德·M·琼利
Owner NEXANS
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