Right-Angle Header Connector Shielding for EMI and Vibration
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Solution Overview
Problem
Existing right-angle electrical connectors face challenges with electromagnetic interference (EMI) and mechanical instability, particularly in environments with vibration, due to inadequate shielding and terminal deformation, which complicates assembly and reduces reliability.
Innovation Solution
A right-angle header electrical connector design featuring shielding plates that conform to the shape of signal terminals, providing electromagnetic shielding and mechanical decoupling, with features like push edges and shoulders to facilitate alignment and insertion, and terminals with specific angular configurations for improved mechanical stability and signal integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If separate shielding components or external enclosures are used to address EMI, then electromagnetic shielding is improved, but assembly complexity increases and connector size increases
Solution Approach 1:
The shielding plate is integrated directly into the housing structure, forming a unified component rather than a separate assembly. The housing itself is configured with the shielding plate as an inherent part, eliminating the need for separate shielding components and reducing assembly steps while maintaining EMI protection effectiveness
2Object-affected harmful factors
If separate shielding components or external enclosures are used to address EMI, then electromagnetic shielding is improved, but connector size increases
Solution Approach 1:
The shielding function is merged into the housing structure itself, where the housing is configured to provide shielding without requiring additional external enclosures. This integration maintains compact connector dimensions while delivering effective EMI protection through the integrated shielding plate design
3Volume of moving object
If conventional designs are used, then connector size is maintained, but mechanical integrity deteriorates under vibration and shock
Solution Approach 1:
The connector is divided into functionally distinct segments: the housing structure, the signal terminals, and the integrated shielding plate. This segmentation allows each component to be optimized independently - the housing provides structural support and EMI shielding, while the terminals are positioned to minimize vibration transmission, thereby improving overall mechanical integrity without increasing size
Solution Approach 2:
The shielding plate acts as a mechanical intermediary between the housing and the signal terminals, providing decoupling that reduces vibration transmission to the terminals while maintaining electromagnetic shielding effectiveness. This intermediary structure protects the terminals from mechanical stress without requiring larger connector dimensions
4Object-affected harmful factors
If shielding solutions are added to address EMI, then electromagnetic shielding is improved, but manufacturing complexity increases
Solution Approach 1:
The shielding plate is designed as an integral part of the housing, allowing it to be manufactured as a single piece or pre-assembled unit. This merging of functions enables the housing to provide both structural support and EMI shielding without requiring separate manufacturing processes for additional shielding components, thereby maintaining ease of manufacture while achieving improved electromagnetic protection
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
Enhances electromagnetic shielding, reduces EMI, improves mechanical robustness against vibration, and simplifies assembly by ensuring precise alignment and secure connections, suitable for high-volume manufacturing and vibration-prone environments.
Implementation Method 1
at least one shielding plate disposed between adjacent signal terminals, wherein the shielding plate essentially follows the shape of at least one of the signal terminals, configured to provide electromagnetic shielding
Implementation Method 2
the shielding plate is configured to mechanically decouple the signal terminals from vibration, thereby improving the connector's resistance to mechanical stress and vibration-induced failures
Data Source
AI summary
A right-angle header electrical connector includes a housing and multiple signal terminals, each designed for right-angle connection to a printed circuit board. The connector further includes at least one shielding plate positioned between adjacent signal terminals. This shielding plate is shaped to essentially follow the contour of at least one signal terminal, providing electromagnetic shielding and reducing the impact of vibration on the signal terminals. The configuration enhances signal integrity and mechanical stability by decoupling the signal terminals from external vibrations and electromagnetic interference.