Connector Ground Member Direct PCB Mounting
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Solution Overview
Problem
Connectors with ground members and circuit boards often experience variations in electrical characteristics due to unreliable connections, leading to inconsistent performance.
Innovation Solution
A connector design featuring a ground member with an upper and lower plate portion, a coupling portion, and fixed legs that directly connect to a circuit board, along with a holding member and contacts arranged in rows, allowing for stable electrical characteristics and reduced height without a shell.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a ground member and circuit board are connected through a shell or intermediate structure, then the connector structure is more complete and protective, but the connection reliability varies and electrical characteristics become unstable
Solution Approach 1:
The patent extracts and removes the shell or intermediate connecting structure from the ground member-to-circuit-board connection path. The ground member is designed to directly engage with the circuit board through through-holes, eliminating the intermediate shell structure that caused connection reliability variations and electrical characteristic instability.
Solution Approach 2:
The ground member integrates multiple functions into a single component: it provides electrical grounding, structural support, and direct mechanical connection to the circuit board. The upper plate portion, lower plate portion, and fixed leg are combined into one piece that simultaneously achieves grounding and structural stability without requiring separate shell components.
2Strength
If a shell structure is used to connect ground member and circuit board, then the connector has better structural support, but the overall height increases
Solution Approach 1:
The ground member transitions from a planar plate structure to a three-dimensional structure with a fixed leg extending perpendicular to the plate portions. This vertical dimension allows the ground member to reach through the circuit board thickness and establish direct connection, providing structural support without increasing the horizontal footprint or requiring additional shell height.
Solution Approach 2:
The ground member is segmented into distinct functional portions: upper plate portion for top-side grounding, lower plate portion for bottom-side grounding, and fixed leg for penetrating through the circuit board. This segmentation allows each portion to be optimized for its specific function while maintaining overall compactness.
Data Source
AI summary
A connector is mountable on a circuit board and mateable with a mating connector along a front-rear direction. The connector comprises a ground member, a holding member, a plurality of contacts and a midplate. The ground member has an upper plate portion, a lower plate portion, a coupling portion, a fixed leg and an extending portion. Each of the upper plate portion and the lower plate portion extends in a predetermined plane intersecting with an up-down direction. The fixed leg is configured to be fixed to the circuit board. The fixed leg extends downward in the up-down direction from the extending portion. The extending portion connects the fixed leg and the lower plate portion with each other. The extending portion extends in the predetermined plane from the lower plate portion. The plurality of contacts are arranged in two contact rows.