Shielded Connector Back Plate Structure for Stable Side Plate Contact
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Solution Overview
Problem
Existing connectors face challenges in maintaining the connected state of side plate portions and lock receiving portions, which affects the stability of the shielding performance of the outer conductor terminal.
Innovation Solution
A connector design featuring a tubular body portion with a back plate portion that can displace from an open to a closed state, side plate portions projecting from the back plate, and inner plate portions that contact the side plate portions, along with pressing portions in the housing to maintain the connected state and stabilize the shielding performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the side plate portions are displaced toward the outer left and right sides in directions separating from the lock receiving portions, then the ease of operation is improved, but the shielding performance stability deteriorates
Solution Approach 1:
The patent changes the physical state of the side plate portions by making them elastic, allowing them to deform under pressing force. This enables the side plate portions to be pressed against the inner plate portions to maintain electrical connection, while their elastic recovery maintains the locking function, thus resolving the contradiction between ease of operation and shielding performance stability
Solution Approach 2:
The pressing portions act as an intermediary mechanism that applies force to the side plate portions, ensuring they maintain contact with the inner plate portions. This intermediary force application ensures reliable electrical connection without requiring manual adjustment, resolving the contradiction between operational ease and connection reliability
2Ease of manufacture
If techniques from Japanese Patent Laid-open Publication Nos. H11-339870, 2021-158052, 2020-013748 and 2005-317267 are applied, then the manufacturing complexity is reduced, but the connection reliability deteriorates
Solution Approach 1:
The patent merges multiple functions into the side plate portions: they serve as both locking elements (engaging with lock receiving portions) and electrical connection elements (contacting inner plate portions). This integration maintains manufacturing simplicity while ensuring reliable connection, as the side plate portions perform dual functions simultaneously
3Reliability
If the side plate portions are made elastic to improve connection stability, then the shielding performance is improved, but the device complexity increases
Solution Approach 1:
The patent changes the material parameter of the side plate portions to elastic material, which inherently provides both the connection stability needed for shielding performance and the operational flexibility needed. This single parameter change achieves multiple benefits without adding complex mechanisms
Solution Approach 2:
The elastic side plate portions self-adjust to maintain contact with the inner plate portions through their inherent elastic recovery. This self-service mechanism ensures stable electrical connection and shielding performance without requiring additional active control systems or complex adjustment mechanisms
Data Source
AI summary
An outer conductor 30 of a connector 10 includes a tubular body portion having open front and rear surfaces, a back plate portion 47 arranged displaceably with respect to a body portion 31 from an open state to a closed state, and side plate portions 51 projecting from left and right end parts of the back plate portion 47. The body portion 31 includes inner plate portions 39 arranged in the left and right end parts. The inner plate portions 39 are arranged to contact the inner surfaces of the side plate portions 51 in the closed state of the back plate portion 51. A housing 20 includes pressing portions 40 for pressing the side plate portions 51 against the inner plate portions 39.