Electric Connector Shell Structure for Simplified Contact Shielding
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Solution Overview
Problem
There is a demand for simplifying the shell of an electric connector mounted on a board while maintaining effective shielding performance and connectivity.
Innovation Solution
The electric connector and mating connector are designed with partially covering shells that surround the contact touching portion, featuring U- or H-shaped side surfaces and coupling surfaces, allowing for simplified manufacturing and increased elastic force, and include protrusions for enhanced shielding and reduced distance between boards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the shell covers the entire periphery of the contacts around the axis, then the shielding performance is improved, but the shell structure becomes complex and manufacturing difficulty increases
Solution Approach 1:
The shell is designed to partially cover the periphery of the contacts rather than completely surrounding them. Specifically, the shell covers the signal contact from one side and the ground contact from the other side, providing sufficient shielding for the contact interface while avoiding the complexity of a fully enclosed structure. This partial coverage achieves the necessary electromagnetic shielding without requiring complex manufacturing processes.
2Ease of manufacture
If the shell structure is simplified, then the manufacturing ease is improved, but the shielding performance may deteriorate
Solution Approach 1:
The shell structure is designed with different coverage characteristics for different contacts. The signal contact is covered from one side while the ground contact is covered from the other side, creating asymmetric local shielding zones. This local quality approach allows the simplified shell to provide targeted shielding exactly where the contact interface requires it, maintaining shielding performance while enabling easier manufacturing through simpler geometries.
3Productivity
If the distance between the first board and the second board is reduced, then the connector density is improved, but the elastic force of the protrusions decreases
Solution Approach 1:
The protrusions are designed as elastic elements that dynamically adapt to the fitting conditions. When the connector is assembled, the protrusions elastically deform to accommodate the reduced distance between boards while maintaining sufficient contact force. This dynamic elasticity allows the structure to achieve high connector density with reduced board spacing while still providing adequate mechanical force for reliable electrical connection.
Data Source
AI summary
A connector device includes an electric connector and a mating connector fitted to the electric connector. The electric connector includes a pair of first contacts, a first shell partially covering a periphery of the pair of first contacts around an axis along a fitting direction between the electric connector and the mating connector, and a first housing. The mating connector includes a pair of second contacts, a second shell partially covering a periphery of the pair of second contacts around an axis, and a second housing. When viewed from the fitting direction in the fitted state where the electric connector and the mating connector are fitted to each other, the first shell and the second shell surround a contact touching portion where the pair of first contacts and the pair of second contacts come into contact with each other around an axis.