Electric Connector Shell Sandwiching Signal Path for Shielding
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Solution Overview
Problem
Conventional electric connectors require additional operations for electromagnetic shielding, leading to reduced productivity and inadequate protection against electromagnetic interference, with existing solutions failing to effectively prevent outward leakage of electromagnetic waves.
Innovation Solution
An electric connector design featuring a shell member with first and second shells that sandwich the contact member, providing ground paths to achieve electromagnetic shielding without additional operations, with ground contact points strategically positioned based on signal frequencies to enhance contact pressure and shielding effectiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional electric connectors use additional operations or conductive covers for electromagnetic shielding, then electromagnetic shielding property is improved, but productivity deteriorates due to additional installation work
Solution Approach 1:
The shell member is pre-integrated with ground contact points and ground transmission lines during connector manufacturing, so that electromagnetic shielding functionality is built-in before the connector is installed. This eliminates the need for additional shielding operations after insertion, resolving the contradiction between achieving good electromagnetic shielding and maintaining high productivity
Solution Approach 2:
The invention merges the shell member, ground contact points, and ground transmission lines into a single integrated structure. The shell member itself becomes the electromagnetic shielding component while simultaneously providing mechanical protection, combining multiple functions into one element to avoid additional installation steps
2Ease of manufacture
If conventional electric connectors use simple shell structures, then ease of manufacture is improved, but electromagnetic shielding effectiveness deteriorates due to inadequate ground path configuration
Solution Approach 1:
The invention applies local quality by strategically positioning ground contact points at specific locations on the shell member where they can most effectively intercept electromagnetic interference. The ground transmission lines are routed through specific paths within the connector structure to optimize shielding effectiveness at critical areas, achieving enhanced electromagnetic protection without requiring complete structural redesign
Solution Approach 2:
The ground transmission lines act as intermediaries that connect the ground contact points on the shell member to the ground conducting path on the wiring board. This intermediary structure provides a dedicated low-impedance path for electromagnetic shielding currents, enhancing shielding effectiveness while maintaining manufacturing simplicity
3Ease of manufacture
If ground contact points are positioned far apart, then ease of manufacture is improved, but electromagnetic shielding property deteriorates due to insufficient contact pressure and inadequate frequency coverage
Solution Approach 1:
The invention optimizes the parameters of ground contact point spacing and positioning based on the frequency characteristics of the signals being transmitted. By carefully selecting the distance between ground contact points and their locations relative to signal transmission lines, the design achieves effective electromagnetic shielding across the operating frequency range while maintaining reasonable manufacturing complexity
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 provides effective electromagnetic shielding of the signal transmission path without additional operations, improving productivity and reducing electromagnetic interference risks by strategically positioning ground contact points to adjust contact pressure and enhance shielding.
Implementation Method 1
the shell member includes a first shell, disposed in a state of facing the connected object, that entirely covers the contact member and a second shell disposed to face the first shell and disposed between the connecting object and the connected object
Implementation Method 2
each of the first and second shells includes a connecting object ground contact point and a connected object ground contact point that are connected to the ground transmission line of the connecting object and the ground conducting path of the connected object, respectively
Data Source
AI summary
A shell member that is ground-connected to a connected object is constituted by a first shell that faces the connected object and entirely covers a contact member and a second shell that faces the first shell in a part between a connecting object and the connected object. Each of the first and second shells is provided with ground contact points with a ground conducting path of the connecting object and a ground conducting path of the connected object, with a signal transmission path sandwiched between ground paths by the first and second shells and configured to achieve satisfactory electromagnetic shielding of the signal transmission path.