Electrical Connector L-Shaped Protrusions Crosstalk Shielding
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Solution Overview
Problem
Existing electrical connectors face challenges in preventing crosstalk during high-speed signal transmission due to limitations in material characteristics and manufacturing processes, particularly with conductive plastics, which affect structural stability and shielding effectiveness.
Innovation Solution
An electrical connector design featuring an insulating body with L-shaped protrusions and staggered differential signal terminal pairs, along with grounding terminals, that provides effective shielding and structural stability by overlapping terminal pairs and using a conductive body with specific edge orientations and protrusions to reduce crosstalk interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If linear rectangular blocks are extended in the length direction to enhance shielding effect, then crosstalk prevention is improved, but the U-shaped plastic body becomes excessively long and structural stability deteriorates
Solution Approach 1:
The conductive plastic body is segmented into multiple independent L-shaped protrusions arranged in rows, rather than using a single continuous linear rectangular block. Each L-shaped protrusion provides localized shielding while the segmented structure avoids creating an excessively long continuous groove that would compromise structural stability.
Solution Approach 2:
The shielding structure transitions from a one-dimensional linear rectangular block to a two-dimensional L-shaped protrusion configuration. The L-shape extends in multiple directions (row direction and column direction), providing enhanced shielding coverage without requiring excessive length in a single direction, thus maintaining structural stability.
2Reliability
If conductive plastic is formed integrally with U-shaped plastic body by secondary injection molding, then shielding structure is integrated, but preparation process becomes complex and mass production is unfavorable
Solution Approach 1:
The conductive plastic body is divided into multiple independent L-shaped protrusions that can be manufactured separately and then assembled into the U-shaped plastic body. This segmentation simplifies the manufacturing process by allowing modular production while maintaining the integrated shielding effect when assembled.
Solution Approach 2:
The L-shaped protrusions are prepared in advance as separate components before being assembled into the final connector structure. This preliminary preparation allows for optimized manufacturing of individual shielding elements and simplifies quality control and assembly processes.
Data Source
AI summary
The application provides an electrical connector, which includes: an insulating body; a conductive body; and a plurality of grounding terminals and a plurality of signal terminals. A plurality of L-shaped protrusions are arranged on the conductive body, a row of L-shaped protrusions are formed between every two adjacent terminal rows, the L-shaped protrusion includes a short edge portion and a long edge portion, the short edge portion is electrically connected to the corresponding grounding terminal by a second end of the short edge portion, and the long edge portion isolates a part of differential signal terminal pairs in adjacent terminal rows that are at least partially overlapped in the column direction. By such electrical connector, the differential signal terminal pairs may be shielded well to avoid crosstalk interference, a common-ground effect is achieved between the grounding terminals, and overall operational effectiveness of the electrical connector is effectively improved.