Electrical Connector Fixing Piece Insulation Signal Reflection
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Solution Overview
Problem
High-frequency signal reflection occurs due to impedance changes in electrical connectors, affecting signal integrity in high-end electronic products with complex terminal structures.
Innovation Solution
An electrical connector design featuring inclined conducting terminals with an insulation connection to fixing pieces, utilizing a torsion arm and elastic insulation piece to minimize impedance changes and prevent signal reflection, ensuring good high-frequency performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a fixing piece protrudes from the main body portion of the terminal to fix the terminal in the insulating body, then the manufacturing procedure of the terminal becomes simple, but the terminal differs in width and thickness causing impedance changes that result in signal reflection
Solution Approach 1:
An insulating piece is introduced as an intermediary component between the fixing piece and the conducting terminal. The fixing piece connects to the insulating piece, which in turn connects to the terminal, preventing direct electrical connection between the fixing piece and terminal. This intermediary structure eliminates the harmful electrical effect (impedance change and signal reflection) while preserving the mechanical fixing function.
Solution Approach 2:
The fixing structure is segmented into distinct functional parts: the fixing piece (mechanical attachment), the insulating piece (electrical isolation), and the terminal (signal conduction). This segmentation separates the mechanical fixing function from the electrical signal path, allowing each component to perform its specific function without interfering with the other, thereby preventing signal reflection while maintaining manufacturing simplicity.
2Reliability
If the terminal structure is made complex to accommodate multiple functions, then the high-frequency performance may improve, but the device complexity increases
Solution Approach 1:
The terminal structure is divided into specialized segments: a main body for signal conduction, a fixing piece for mechanical attachment, and an insulating piece for electrical isolation. Each segment performs a specific function, avoiding the need for a monolithic complex structure. This segmentation achieves high-frequency performance by ensuring each part is optimized for its function while keeping the overall structure manageable.
Solution Approach 2:
Different parts of the terminal structure have different local properties optimized for their specific functions: the main body has electrical conductivity for signal transmission, the fixing piece has mechanical strength for attachment, and the insulating piece has electrical insulation properties. This local quality optimization allows the structure to achieve high-frequency performance without requiring uniform complexity throughout the entire terminal.
Data Source
AI summary
An electrical connector used for electrically connecting a first electronic element and a second electronic element opposite to each other, includes an insulating body and multiple conducting terminals. The insulating body has multiple receiving spaces, and the conducting terminals are correspondingly accommodated in the receiving spaces. At least one fixing piece is connected to one of the conducting terminals through at least one insulation piece, and the fixing piece fixes the conducting terminal to the corresponding receiving space.