Elastic Grounding Connector for Stable EMI Shielding
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing connectors experience unstable grounding due to tolerance issues during plugging, affecting anti-electromagnetic interference (EMI) effectiveness.
Innovation Solution
A connector design featuring a metal partition board with an elastic arm that stabilizes grounding by deforming and forming a ground loop when plugged, utilizing a molding piece with an oblique elastic arm and a barrier plate for enhanced contact stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If housing grounding connection mode is used, then the connector can be assembled, but the grounding effect becomes unstable due to tolerance during plugging
Solution Approach 1:
The patent transforms the static housing grounding connection into a dynamic elastic arm structure that can automatically adapt to plugging tolerances. The elastic arm bends and deforms during insertion, maintaining continuous contact with the mating connector's grounding terminal, thereby ensuring stable grounding despite dimensional variations in the plugging process.
Solution Approach 2:
The patent changes the physical state of the grounding connection from rigid to flexible by introducing an elastic arm with specific material properties. The elastic arm's flexibility parameter allows it to deform within a certain range during plugging, absorbing tolerance variations while maintaining effective grounding contact.
2Object-affected harmful factors
If metal partition board is arranged inside the product, then anti-EMI effect can be achieved, but the grounding stability is affected by plugging tolerance
Solution Approach 1:
The patent introduces the elastic arm as an intermediary element between the metal partition board's grounding terminal and the mating connector. This intermediary absorbs the mechanical stress and tolerance variations from plugging, protecting the grounding connection's stability while maintaining the metal partition board's anti-EMI functionality.
3Ease of manufacture
If conventional housing grounding is used, then connector assembly is simple, but anti-EMI effectiveness is reduced due to unstable grounding
Solution Approach 1:
The patent replaces the simple but unstable housing grounding with a dynamic elastic arm structure that maintains grounding stability. The elastic arm's ability to deform and recover ensures consistent electrical contact for EMI protection, while the overall assembly process remains relatively simple through integrated molding and automatic contact during plugging.
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
Ensures stable electrical connections and improved anti-EMI performance by maintaining grounding even with loose mating tolerances, enhancing signal transmission reliability.
Implementation Method 1
the elasticity of the elastic arm allows the housing of the wire-end connector to remain connected to the metal partition board in a stable manner
Implementation Method 2
the metal partition board can achieve better anti-electromagnetic interference (anti-EMI) effect
Data Source
AI summary
Disclosed is a connector with a barrier plate and an elastic arm. The connector can have a molding piece, a row of upper and lower terminals, and a metal partition board. The molding piece covers at least a portion of the metal partition board, which has an elastic arm emerging from a vertical wall of the molding piece and extending at an oblique angle. For example, when a wire-end connector is mated to a board-end connector, the housing of the former compresses the elastic arm and forms a ground connection with the elastic arm and the metal partition board in the board-end connector. Thus, the elastic arm can be utilized to form a ground loop with another connector.