Conductive Connector Housing for Grounding and Signal Shielding
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Solution Overview
Problem
Existing electrical connectors face challenges in improving signal transmission quality and structural reliability, particularly in terms of grounding and shielding effects.
Innovation Solution
The electrical connector employs a conductive housing with a conductive terminal module and an insulating fixing block, along with a ground sheet, to enhance grounding and structural reliability, using a conductive housing to replace the insulating housing and incorporating insulating fixing blocks in filling grooves to improve shielding and signal transmission quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If an insulating housing is used in the electrical connector, then the structural simplicity is maintained, but the shielding effect and signal transmission quality are insufficient
Solution Approach 1:
The housing is constructed as a composite structure combining conductive and insulating materials. The conductive housing (first conductive housing and second conductive housing) provides shielding for signal terminals, while the insulating housing integrates both conductive and insulating portions to achieve both shielding and insulation functions. This composite material approach resolves the contradiction by incorporating multiple material properties into a unified housing structure.
Solution Approach 2:
The housing is segmented into distinct functional portions: conductive portions (first conductive housing, second conductive housing) for shielding signal terminals, and insulating portions for providing electrical isolation. The housing further includes divided shielding portions (first shielding portion, second shielding portion, third shielding portion) that are separately configured to shield different terminal groups. This segmentation allows each portion to optimize its specific function while working together as an integrated system.
2Reliability
If conductive terminals are mounted directly in the housing, then the manufacturing process is simplified, but the grounding effect and structural reliability are insufficient
Solution Approach 1:
A grounding component is introduced as an intermediary element between the conductive terminals and the conductive housing. The grounding component includes a grounding terminal that contacts the conductive housing and grounding portions that extend to contact or shield the signal terminals. This intermediary structure improves the grounding effect by providing dedicated grounding paths while maintaining manufacturing feasibility through modular assembly.
Solution Approach 2:
The grounding component extends in multiple spatial dimensions: vertically to contact the conductive housing, horizontally to shield terminal groups, and with varying lengths (first grounding portion longer than second grounding portion) to achieve different grounding effects for different terminals. This multi-dimensional configuration optimizes grounding coverage and effectiveness.
3Manufacturing precision
If signal terminals are surrounded by conductive shielding, then the signal transmission quality is improved, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The conductive housing serves multiple functions simultaneously: it provides the structural framework for mounting terminals, acts as a shield for signal terminals, provides grounding paths through integrated grounding portions, and offers mechanical support for the entire connector assembly. This multi-functionality reduces the need for separate dedicated shielding components, thereby managing complexity while achieving comprehensive signal protection.
Solution Approach 2:
The shielding structure is configured with local variations to match the specific needs of different terminal groups. The first shielding portion, second shielding portion, and third shielding portion are positioned and dimensioned differently to provide appropriate shielding for adjacent, opposite, and other signal terminals respectively. This localized shielding approach optimizes signal protection where needed while minimizing unnecessary complexity in other areas.
Data Source
AI summary
An electrical connector includes a conductive housing, a first terminal module and a first insulating fixing block. The conductive housing defines a receiving slot configured to at least partially receive a mating module along a first direction. The conductive housing includes a first conductive housing. The first conductive housing includes a first front end surface and a first filling groove extending through the first front end surface along the first direction. The first terminal module includes a first conductive terminal which is not in contact with the first conductive housing. The first insulating fixing block is fixed in the first filling groove. The first insulating fixing block is located adjacent to a front end of the receiving slot.