Electrical Connector Shielding Plate Grounding Path
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Solution Overview
Problem
Conventional electrical connectors have poor shielding capabilities, leading to vulnerability to radio frequency interference (RFI) and electromagnetic interference (EMI), which affects the normal functioning of electronic devices.
Innovation Solution
The electrical connector design includes a metallic shell with conductive contact portions that can contact external devices, an insulation housing with a shielding plate, and conductive terminal sets, enhancing grounding and electromagnetic compatibility (EMC) by providing a conductive path for interference mitigation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a metallic shell is used to protect internal electronic components, then mechanical protection is improved, but shielding capability against RFI and EMI deteriorates
Solution Approach 1:
The patent employs a composite structure combining metallic shell with conductive shielding materials. The metallic shell provides mechanical protection while the integrated conductive shielding plate and conductive contact portions provide electromagnetic shielding. This composite approach allows simultaneous achievement of mechanical strength and RFI/EMI shielding capability.
Solution Approach 2:
The patent implements a nested structure where the conductive shielding plate is disposed inside the insulation housing, which is in turn disposed inside the metallic shell. The conductive contact portions extend from the metallic shell through the insulation housing to contact external devices. This nested arrangement allows multiple protective functions to be integrated within the metallic shell structure.
2Stability of the object's composition
If the metallic shell is isolated from external devices, then structural integrity is maintained, but electromagnetic compatibility deteriorates
Solution Approach 1:
The patent introduces conductive contact portions as intermediaries between the metallic shell and external devices. These contact portions extend through the insulation housing and can contact conductive portions of external devices, establishing an electromagnetic connection pathway while maintaining the structural integrity of the metallic shell. The insulation housing acts as a mediator that allows electrical connection while providing insulation where needed.
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 effectively reduces RFI and improves EMC, ensuring the electrical connector can function reliably amidst external electromagnetic interference.
Implementation Method 1
one single conductive contact portion... can be in contact with an external device as the electrical connector is assembled with the external device into a product. Therefore, a grounding effect is achieved, electromagnetic compatibility is improved, and the problem of RFI is diminished.
Implementation Method 2
a shielding plate disposed inside the insulation housing... the metallic shell of the electrical connector has a poor shielding capability
Data Source
AI summary
An electrical connector includes a metallic shell structure having a port, an insulation housing disposed in the metallic shell structure, a shielding plate disposed inside the insulation housing, and two rows of conductive terminal sets disposed on the insulation housing with each on two opposing sides of the shielding plate. A conductive contact portion is formed around the port by the metallic shell structure. Therefore, as the electrical connector is assembled with an external device, the conductive contact portion can be in contact with the external device. Hence, a grounding effect is achieved, and an electromagnetic compatibility is improved.