Nanocrystalline Magnetic Core Connector for Wire Harness Noise Reduction
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Solution Overview
Problem
The large size and mass of ferrite cores in existing wire harnesses reduce the degree of freedom in routing layout and increase the number of parts required, complicating the attachment process and increasing electromagnetic noise.
Innovation Solution
A connector with a housing that supports the electric wire and an annular magnetic core made of nanocrystalline soft magnetic material, which is smaller and more compact, allowing for improved routing flexibility and reduced part count while effectively reducing electromagnetic noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a ferrite core is used to reduce electromagnetic noise, then electromagnetic noise reduction is improved, but the size and mass increase, reducing routing layout freedom
Solution Approach 1:
The patent changes the material parameter from conventional ferrite to nanocrystalline soft magnetic material, which has superior magnetic properties allowing for a smaller core size while maintaining or improving electromagnetic noise reduction effectiveness
Solution Approach 2:
The patent uses a composite structure combining nanocrystalline soft magnetic material with a resin matrix in the housing, creating a integrated component that provides both structural support and electromagnetic noise reduction in a compact form
2Object-affected harmful factors
If a ferrite core is used to reduce electromagnetic noise, then electromagnetic noise reduction is improved, but the number of parts increases and workability decreases
Solution Approach 1:
The patent merges the magnetic core function with the connector housing by integrating the nanocrystalline soft magnetic material into the housing structure, eliminating the need for separate ferrite core components and their associated fixing members
Solution Approach 2:
The housing is designed to serve multiple functions: providing structural support, guiding wire insertion, and incorporating the nanocrystalline soft magnetic material for electromagnetic noise reduction, thereby combining multiple functions into a single component
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The compact nanocrystalline soft magnetic core allows for enhanced routing flexibility and reduced part count, while effectively controlling electromagnetic noise, improving workability and reducing electromagnetic interference.
Implementation Method 1
an annular magnetic core comprising a nanocrystalline soft magnetic material which is arranged around the electric wire supporting portion
Data Source
AI summary
A connector for being arranged at an end of an electric wire includes a housing including an electric wire supporting portion in which an insertion hole to insert the electric wire thereinto is formed and which is harder than the electric wire and sandwiches the electric wire inserted into the insertion hole, and an annular magnetic core including a nanocrystalline soft magnetic material which is arranged around the electric wire supporting portion.