Shielded Electrical Connector Structure to Prevent Terminal Shorting
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Solution Overview
Problem
Existing electrical connectors face challenges in improving signal transmission quality and preventing short circuits due to inadequate shielding and contact between conductive terminals.
Innovation Solution
The electrical connector employs a conductive housing with a conductive terminal module installation slot and filling groove, along with an insulating fixing block, to enhance shielding and prevent short circuits by ensuring non-contact between the conductive terminals and the housing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If an insulating housing is used in the electrical connector, then the manufacturing simplicity is maintained, but the shielding effect is insufficient leading to poor signal transmission quality
Solution Approach 1:
The housing is constructed as a composite structure combining insulating material with an integrated conductive shell. The conductive shell is formed by electroplating or coating conductive material on the insulating housing, creating a multi-material structure that simultaneously provides electrical insulation and electromagnetic shielding. This resolves the contradiction by incorporating both insulating and conductive properties in a single integrated housing component.
2Device complexity
If conductive terminals are installed without additional insulation, then the device complexity is reduced, but short circuits occur due to contact between terminals and the conductive housing
Solution Approach 1:
An insulating filling block is introduced as an intermediary component between the conductive terminals and the conductive housing. This filling block fills the hollow interior of the housing, providing electrical insulation that prevents contact between the conductive terminals and the conductive housing. The filling block is simplified in design without requiring complex additional insulation structures, thus maintaining device simplicity while ensuring reliability.
3Object-affected harmful factors
If the housing is made conductive to improve shielding, then signal transmission quality improves, but the risk of short circuits increases due to contact between conductive terminals and housing
Solution Approach 1:
The housing interior space is segmented into electrically isolated regions using the insulating filling block. The filling block divides the conductive housing interior into separate insulated zones where conductive terminals are mounted, preventing electrical contact between terminals and the conductive housing while maintaining the overall conductive shielding structure. This segmentation allows the housing to remain conductive for shielding purposes while eliminating short circuit risks.
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 defines a first terminal module installation slot and a first filling groove. The first terminal module installation slot communicates with the receiving slot. The first terminal module is at least partially installed in the first terminal module installation slot. 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.