Electrical Connector Shielding Cage Layout for Signal Transmission
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Solution Overview
Problem
Existing electrical connectors and connector assemblies face challenges in improving signal transmission quality and require enhanced shielding features.
Innovation Solution
The design incorporates a conductive housing with non-contacting conductive terminals and a shielding cage assembly that includes a metal shell structure with a receiving cavity, allowing for improved signal transmission and shielding effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conductive terminals are mounted to the insulating body, then the electrical connector can be assembled, but the signal transmission quality is insufficient due to shielding issues
Solution Approach 1:
The patent implements a nested shielding structure where an inner shielding cage is placed inside the outer conductive housing. The inner shielding cage surrounds the conductive terminals, creating multiple layers of electromagnetic shielding. This nested configuration effectively blocks external electromagnetic interference while containing signals within the connector, thereby improving signal transmission quality without requiring the terminals to contact the housing directly.
Solution Approach 2:
The patent introduces an insulating body as an intermediary between the conductive terminals and the conductive housing. This insulating body prevents direct contact between the terminals and the housing, eliminating unwanted electrical connections while maintaining the shielding effectiveness of the conductive housing. The insulating body acts as a mediator that allows the housing to provide shielding without creating electrical interference with the signal terminals.
2Reliability
If traditional insulating body structure is used, then manufacturing is simple, but signal transmission quality and shielding effectiveness are insufficient
Solution Approach 1:
The patent employs a nested structure with multiple shielding layers (inner shielding cage and outer conductive housing) to enhance electromagnetic shielding effectiveness. This multi-layer nested configuration provides superior signal transmission quality by creating multiple barriers against electromagnetic interference, while the modular nested design allows for systematic manufacturing and assembly processes.
Solution Approach 2:
The patent divides the shielding function into separate components: the inner shielding cage and the outer conductive housing. This segmentation allows each component to be manufactured and optimized independently, then assembled together to form the complete shielding system. The conductive terminals are also segmented and mounted on the insulating body, enabling independent optimization of electrical and shielding performance.
3Reliability
If conductive terminals contact the conductive housing, then assembly is straightforward, but electromagnetic interference increases reducing signal quality
Solution Approach 1:
The patent uses the insulating body as a mediator that physically separates the conductive terminals from the conductive housing. This intermediary prevents direct electrical contact between the signal-carrying terminals and the shielding housing, thereby eliminating a major source of electromagnetic interference. The insulating body maintains the necessary electrical isolation while allowing the conductive housing to provide effective electromagnetic shielding.
Solution Approach 2:
The patent implements a nested configuration where the inner shielding cage is positioned within the outer conductive housing, with the conductive terminals mounted on the insulating body between them. This nested arrangement creates multiple shielding layers that work together to block electromagnetic interference, preventing it from reaching the conductive terminals while maintaining signal transmission quality.
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 solution enhances signal transmission quality and reduces the occupied area on the circuit board while providing effective shielding, thereby improving the overall performance of the electrical connector assembly.
Implementation Method 1
a conductive housing, the conductive housing defining a first receiving slot... a shielding cage assembly, the shielding cage assembly being configured to be mounted to the circuit board... the first receiving cavity and the first receiving slot being configured to jointly at least partially receive the first mating connector
Data Source
AI summary
A first electrical connector is configured to be mounted to a circuit board along a first direction. The first electrical connector includes a conductive housing and a number of conductive terminals. The conductive housing defines a first receiving slot configured to at least partially receive a first mating connector along the first direction. The first direction is perpendicular to the circuit board. The conductive terminals are at least partially disposed in the conductive housing but are not in contact with the conductive housing. A connector assembly having the first electrical connector is also disclosed.