Shielded Electric Connector with Branched PCB Connection
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Solution Overview
Problem
Existing connectors face challenges in maintaining shielding performance while simplifying the manufacturing process, as wide board connecting portions require large holes in circuit boards, but narrowing them compromises shielding effectiveness.
Innovation Solution
A connector design featuring an outer conductor with four plate portions surrounding an inner conductor, a rear plate portion, and branched pieces projecting from a common base end portion, allowing for easy alignment and formation, while maintaining shielding performance through a bent portion with a smaller width than the common base end portion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the board connecting portion is made wide, then shielding performance is improved, but the hole formation in the circuit board becomes difficult
Solution Approach 1:
The outer conductor is divided into multiple plate portions (first plate portion, second plate portion, third plate portion, fourth plate portion) that are arranged in the width direction. These segmented plate portions can be inserted through individually smaller holes in the circuit board while collectively providing wide coverage for shielding, thus resolving the contradiction between wide shielding coverage and ease of hole formation.
2Ease of manufacture
If the board connecting portion is narrowed, then hole formation becomes easier, but shielding performance is reduced
Solution Approach 1:
Instead of using a single narrow board connecting portion, the invention uses multiple narrower plate portions arranged side by side in the width direction. Each plate portion passes through its own small hole in the circuit board, making hole formation easier, while the collective arrangement of multiple plate portions maintains wide shielding coverage.
Solution Approach 2:
The solution transitions from a single wide dimension (one large board connecting portion) to a multi-dimensional arrangement (multiple narrower plate portions distributed in the width direction). This dimensional redistribution allows small individual holes while achieving wide overall coverage through the arrangement of multiple elements across the width dimension.
Data Source
AI summary
A connector includes inner conductors and an outer conductor. The outer conductor includes four plate portions surrounding outer peripheral surfaces of the inner conductors, a rear plate portion for closing a rear surface of the outer conductor and an opening provided behind the bottom plate portion and in front of the rear plate portion. The inner conductor includes a board connecting portion projecting outwardly of the outer conductor through the opening. The outer conductor includes a common base end portion connected to a rear end of the bottom plate portion via a bent portion and projecting toward the same side as the board connecting portion, and a plurality of branched pieces projecting from a projecting end of the common base end portion while being arranged in a width direction of the common base end portion.