Rotatable Shield Plate for Electrical Connector EMI Noise
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Solution Overview
Problem
Conventional electrical connector devices face challenges in effectively eliminating external electromagnetic noise and preventing its emission, particularly with higher frequency signals, due to the complexity and inefficiency of existing shielding methods, which hinder productivity and visual inspection of connection quality.
Innovation Solution
An electrical connector design featuring a rotatable fit-in holding member with a shield plate that covers the board connection leg and a ground connecting unit, which makes contact with the circuit board's ground connection path, providing immediate electromagnetic shielding while allowing visual confirmation of the connected state.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conductive tape is affixed to cover the connecting portion, then electromagnetic shielding is established, but the work process becomes burdensome and productivity decreases
Solution Approach 1:
The shield plate is integrated with the fit-in holding member as a single unified structure, eliminating the need for separate conductive tape application. The shield plate extends from the fit-in holding member to cover the connecting portion, merging the holding function and shielding function into one component, thereby simplifying the assembly process and improving productivity
Solution Approach 2:
The fit-in holding member serves multiple functions: it provides mechanical holding during insertion, integrates the shield plate for electromagnetic shielding, and includes the ground connecting unit for electrical grounding. This multi-functionality eliminates the need for separate shielding components and their associated assembly steps
2Object-affected harmful factors
If conductive shell is extended to cover the connecting portion, then electromagnetic shielding is established, but visual inspection of connection quality becomes difficult
Solution Approach 1:
The shield plate is designed with selective coverage - it covers the connecting portion for electromagnetic shielding while leaving the board connection leg exposed. This localized shielding approach maintains inspection accessibility for critical connection points while providing shielding where needed
Solution Approach 2:
The shield plate is rotatably coupled to the fit-in holding member, allowing it to rotate between a first position during insertion and a second position for shielding. This dynamic positioning enables the shield plate to move out of the way during assembly for visual inspection, then rotate into position to provide shielding when needed
Data Source
AI summary
To allow easy and reliable establishment of electromagnetic shielding regarding a portion connected to a circuit board with a simple structure, a shield plate provided to a fit-in holding member which keeps a state of fitting in a counterpart connector externally covers board connection legs of counterpart contact members and, simultaneously with an operation of rotating the fit-in holding member when connectors fit together, electromagnetic shielding with respect to the board connection legs is immediately established. Also, a ground connecting units provided to the fit-in holding member are connected to ground connection conductive paths provided at positions near the board connection legs of the counterpart contact members, thereby obtaining favorable electromagnetic shielding characteristics. Also, a connected state at the board connection legs can be favorably confirmed.