Ferrule Connector Structure for Grounded Noise Suppression
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Solution Overview
Problem
Existing electrical connectors with shields outside the housing face limitations in noise reduction due to the distance between the terminals and the ground pad, leading to inadequate noise suppression.
Innovation Solution
An electrical connector design featuring a ferrule with insertion holes and a conductor that includes a groove and an elastically deformable protruding portion, allowing for closer proximity to the electric wires and effective contact with the ground electrode for enhanced noise reduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the shield is disposed outside the housing, then the device complexity is reduced, but the noise reduction capability deteriorates due to increased distance between terminals and ground pad
Solution Approach 1:
The conductor is nested inside the ferrule, with the body portion disposed in the groove and the protruding portion extending outward to contact the ground electrode. This nested configuration allows the ground connection to be positioned close to the electric wires without increasing overall device complexity.
Solution Approach 2:
The conductor is positioned in the groove formed between adjacent insertion holes, utilizing the space dimension within the ferrule structure. This dimensional arrangement enables close proximity to the electric wires while maintaining structural integrity and simplifying the overall design.
2Object-affected harmful factors
If the conductor is positioned closer to the electric wires, then the noise reduction capability is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The groove is formed specifically between adjacent insertion holes to provide a dedicated position for the conductor body portion. This localized structural feature ensures consistent positioning of the conductor relative to the electric wires, reducing manufacturing precision requirements while maintaining effective noise reduction.
Solution Approach 2:
The groove is pre-formed in the ferrule during manufacturing, establishing the conductor's position in advance. This preliminary structural preparation simplifies subsequent assembly processes and ensures accurate positioning without requiring high-precision operations during final assembly.
3Reliability
If the protruding portion is made elastically deformable, then the connection reliability is improved, but the material selection complexity increases
Solution Approach 1:
The protruding portion is designed with elastic deformability, allowing it to dynamically adapt during insertion and connection. This dynamic property enables the conductor to reliably contact the ground electrode while accommodating dimensional variations, improving connection reliability without requiring complex material combinations.
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 design achieves improved noise reduction by ensuring the conductor is in close proximity to the electric wires and can be reliably connected to the ground electrode, enhancing noise suppression capabilities.
Implementation Method 1
the protruding portion being elastically deformable in the first direction
Data Source
AI summary
An electrical connector includes a ferrule, a plurality of electric wires, and a conductor. The ferrule includes a front-end surface and a plurality of insertion holes extending along a first direction intersecting the front-end surface, the plurality of insertion holes being open in the front-end surface. The plurality of electric wires are disposed in the plurality of insertion holes. The conductor is provided on the ferrule. The ferrule includes a groove formed at least between a pair of insertion holes adjacent to each other among the plurality of insertion holes. The conductor includes a body portion disposed in the groove and a protruding portion protruding from the front-end surface in the first direction, the protruding portion being elastically deformable in the first direction.