Connector Shield Mating for High-Density Mounting
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Solution Overview
Problem
Conventional connector devices for mobile terminals face challenges in downsizing due to the inner/outer dual structure of shield walls, which impedes high-density mounting and efficient electromagnetic shielding of high-frequency signals.
Innovation Solution
The connector device eliminates the inner/outer dual structure by using shield mating portions at the ends of each housing, where the plug and receptacle shields are in contact and electrically connected, eliminating potential differences and providing a sufficient electromagnetic shield function without overlapping in the shorter direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If an inner/outer dual structure of shield walls is used, then electromagnetic shielding function is improved, but connector size increases
Solution Approach 1:
The patent merges the inner and outer shield walls into a single integrated shield structure. The shield includes a ground wall extending from the ground plate toward the contact part, and side walls extending from the ground wall in the width direction, forming a unified electromagnetic shielding structure that eliminates the need for separate inner and outer shields while maintaining shielding effectiveness
Solution Approach 2:
The shield structure is nested within the housing, with the ground plate positioned at the bottom and the ground wall extending upward from it. The side walls extend from the ground wall toward the contact part, creating a nested configuration where the shield is integrated within the housing structure rather than occupying additional external space
2Object-affected harmful factors
If shield walls are arranged in inner and outer positions, then electromagnetic interference protection is improved, but mounting density decreases
Solution Approach 1:
The patent combines the functions of inner and outer shields into a single integrated shield structure that provides comprehensive electromagnetic interference protection. The ground wall and side walls work together as a unified shielding system, eliminating the need for separate inner and outer shields and enabling higher mounting density
3Area of stationary object
If a single shield structure is used instead of dual shields, then connector size is reduced, but electromagnetic shielding effectiveness may deteriorate
Solution Approach 1:
The single shield structure is designed with a nested configuration where the ground plate forms the base and the ground wall extends upward from it, with side walls extending from the ground wall toward the contact part. This nested arrangement creates multiple shielding surfaces within a compact structure, maintaining electromagnetic shielding effectiveness while reducing overall size
Solution Approach 2:
The shield structure is designed with different wall portions having optimized geometries for their specific functions. The ground wall provides shielding in the vertical direction, while the side walls provide shielding in the horizontal direction. Each portion is locally optimized to maximize shielding effectiveness for its specific orientation and position
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
This configuration allows for reduced connector size on substrates, enabling high-density mounting and effective electromagnetic shielding of high-frequency signals, while avoiding the dual shield structure that hinders downsizing.
Implementation Method 1
The shield walls provide an electromagnetic shield function with respect to the electromagnetic-wave noise signals generated from mounting portions (contact connecting portions) disposed at the ends of the terminals of each connector
Implementation Method 2
a mounting portion connected to a ground potential of a substrate
Data Source
AI summary
A connector device including: a plug connector provided with a plurality of plug terminals, a plug housing holding the plurality of plug terminals along a longer direction, and a plug shell held on the plug housing; and a receptacle connector provided with a plurality of receptacle terminals, a receptacle housing holding the plurality of receptacle terminals along the longer direction, and a receptacle shell held on the receptacle housing. The plug shell and the receptacle shell are electrically connected in a state in which the plug connector and the receptacle connector are mated together.