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Braided wire connection for an electronics assembly

A technology for electrical connectors and connectors, which is applied to parts, connections, electrical components, etc. of connecting devices, and can solve problems such as cracking and failure of metal plate-type electrical connectors

Inactive Publication Date: 2015-06-17
DELPHI TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, vibration and thermal cycling have been found to cause cracking and failure of sheet metal electrical connections

Method used

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  • Braided wire connection for an electronics assembly
  • Braided wire connection for an electronics assembly
  • Braided wire connection for an electronics assembly

Examples

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Embodiment Construction

[0011] To overcome the aforementioned problems, braided wire can be substituted for known stamped and formed metal sheets or foils used to form electrical interconnections or connections within electrical assemblies. As used herein, the term braided wire includes any multi-strand wire in which the individual strands are braided rather than simply twisted. As such, twisted stranded wires are specifically excluded from the term "braided wire". Furthermore, the term braided wire is limited to configurations generally characterized as flat or easily crushed, rather than generally round as is the case with twisted wire. For example, when the braided wire is crushed, the width of the crushed braided wire is at least twice the thickness of the uncrushed braided wire. The advantage of having a flat braided wire is that the braided wire is more flexible than a stamped metal contact, which is the difference between a low coefficient of thermal expansion (CTE) object (such as a substrat...

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Abstract

An electrical assembly (10) that includes an electronic device (12), a buss bar (14), and an electrical connection (16). The electronic device (12) is operable to control electrical energy. The buss bar (14) is configured to distribute electrical energy within the assembly (10). The electrical connection (16) is configured to electrically interconnect the device (12) and the buss bar (14). The electrical connection (16) is formed of braided wire. Flat braided wire is advantageous as it is more flexible than a direct connection (16) formed by a sheet-metal type lead frame (14), and provides for large contact areas capable of carrying higher currents than a wire-to-surface type contact made with a twisted wire that is generally round in shape.

Description

technical field [0001] The present invention relates generally to electronic assemblies, and more particularly to the use of braided wire to form electrical connections to electrical devices within the assembly. Background of the invention [0002] It is known to form relatively thin metal plates to form electrical connections or interconnects that provide large area electrical contacts to electrical devices such as power transistors. Power transistors can be used to control relatively large currents, such as currents greater than ten amperes (10A). The sheet metal can be stamped and formed to provide stress relief. However, it has been found that vibration and thermal cycling lead to cracking and failure of sheet metal electrical connections. Contents of the invention [0003] According to an embodiment, an electrical assembly is provided. The assembly includes electronics, bus bars and electrical connections. The electronic device is operable to control electrical en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R4/58H01R25/14
CPCH01R4/58H01R25/14H01R25/145H01R13/025H01R25/161
Inventor R·S·泰勒R·A·莫克
Owner DELPHI TECH INC