Electric Connector Rotating Shielding Mechanism
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Solution Overview
Problem
Conventional electric connectors fail to effectively shield electromagnetic noise at the connecting portion with the main wiring board, leading to increased susceptibility to external noise interference and potential electrical issues due to exposed terminal parts and cumbersome shielding processes.
Innovation Solution
A fit-in holding member with a conductive cover part is rotated to cover the connecting portion between the connector and the main wiring board, providing immediate electromagnetic shielding and preventing foreign substance adherence without increasing manufacturing processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the conductive shell is extended to cover the connecting portion between conductive contacts and main wiring board, then electromagnetic shielding is improved, but inspection capability deteriorates
Solution Approach 1:
The conductive shell is segmented into two parts: the main conductive shell covering the body housing, and a separate conductive tape for the connecting portion. This segmentation allows the connecting portion to remain exposed for inspection while still providing electromagnetic shielding where needed.
Solution Approach 2:
Instead of uniformly extending the conductive shell to cover the entire connecting portion, the invention applies electromagnetic shielding locally only where necessary using a conductive tape, while leaving other areas exposed for inspection and heat dissipation.
2Reliability
If conductive tape is affixed to the connecting portion, then electromagnetic shielding is improved, but productivity deteriorates
Solution Approach 1:
The conductive tape is pre-positioned on the connecting portion during the assembly process, and the conductive shell is designed to automatically contact and make electrical connection with the tape, eliminating the need for separate affixing operations and reducing manufacturing steps.
3Reliability
If solder material is used to connect conductive shell to ground bar, then electrical connection is improved, but foreign substance adherence worsens
Solution Approach 1:
A flux barrier layer is introduced as an intermediary between the solder material and the surrounding area during soldering operations. This barrier layer prevents flux and other foreign substances from scattering and adhering to contact portions of conductive contacts, while still allowing proper solder connection between the conductive shell and ground bar.
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 effectively shields electromagnetic noise and prevents foreign substance adherence, enhancing the reliability and productivity of the electric connector assembly while maintaining a simple structure.
Implementation Method 1
the outer surface of the body housing is covered with a metal-thin-plate-like conductive shell for electromagnetic shielding
Data Source
AI summary
To allow electromagnetic shielding regarding a connecting portion between conductive contacts and a main wiring board to be excellently achieved with a simple structure without impairing productivity, a fit-in holding member being rotated from a fit-in releasing position to a fit-in acting position to maintain a state where connectors fit in together by rotation is provided with a conductive cover part covering a connecting portion between a counterpart connector and the main wiring board when the fit-in holding member is rotated to the fit-in acting position, and the connecting portion is covered with the conductive cover part. Electromagnetic shielding of that portion is performed simultaneously with the time when both of the connectors fit in together, thereby eliminating an increase in the number of manufacturing processes. Also, the connection state at the connecting portion between a conductive contact and and the main wiring board can be clearly confirmed until the fit-in holding member is rotated to the fit-in acting position.