Shielded Connector Shell Structure for Stable Ground Contact
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Solution Overview
Problem
Existing connector devices face challenges in enhancing shielding performance, particularly due to gaps between shielding components that can lead to deteriorated performance and uneven strength distribution between connectors.
Innovation Solution
A connector device design featuring a plug connector and a receptacle connector with integrated side and bottom portions that electrically connect to ground conductors, reducing ground potential differences and stabilizing shielding performance by ensuring continuous contact at multiple points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If double shielding is performed using a side plate portion with bent sections, then shielding performance is improved, but ground potential difference increases and shielding stability deteriorates
Solution Approach 1:
The side plate portion is divided into two separate leg portions (first leg portion and second leg portion) that are positioned at different locations. This segmentation allows each leg portion to independently contact the mating connector's side plate, creating multiple separate ground contact points that reduce ground potential difference while maintaining shielding effectiveness.
Solution Approach 2:
The shielding structure transitions from a single-plane bent section to a three-dimensional configuration with leg portions extending in different spatial directions. This dimensional change enables contact at multiple points in space, stabilizing the ground potential across the connector interface while preserving shielding performance.
2Reliability
If integrated side and bottom portions are used, then ground potential difference is reduced and shielding performance is stabilized, but manufacturing complexity increases
Solution Approach 1:
The side plate portion is integrated with the housing to form a unified structure. This merging eliminates gaps between separate components, ensures continuous ground contact, and stabilizes shielding performance while the integrated design simplifies assembly by reducing the number of discrete parts.
3Reliability
If multiple contact points are ensured, then ground potential difference is reduced, but connector strength distribution becomes uneven
Solution Approach 1:
Reinforcement portions are strategically added at specific locations where the side plate portion contacts the mating connector. This localized reinforcement concentrates strength where needed to support the ground contact function, while maintaining overall strength distribution and preventing disengagement at critical points.
Data Source
AI summary
A connector device includes a first connector and a second connector. The first connector includes a first contact, an insulating first housing, and a first shell having a first side portion surrounding an outer periphery of the first housing and a bottom portion extending along the first board within a region surrounded by the first side portion. The second connector includes a second contact, an insulating second housing, and a second shell having a second side portion surrounding an outer periphery of the second housing and an upper portion extending within a region surrounded by the second side portion. In a state where the first connector and the second connector are fitted to each other, the first contact comes into contact with the second contact, the first side portion comes into contact with the second side portion, and the bottom portion comes into contact with the upper portion.