Floating Connector with Segmented Elastic Contact for High-Speed Signal Integrity
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Solution Overview
Problem
Existing connectors with floating structures do not adequately support high-capacity and high-speed signal transmission, as they fail to consider designs that can effectively accommodate large positional deviations and maintain reliable connectivity.
Innovation Solution
A connector design featuring a first insulator, a second insulator that is movable relative to the first, and contacts with elastic portions and an adjustment portion that provide both electrical conductivity and deformation capabilities, allowing for impedance matching and increased moving range while minimizing the connector's size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a floating structure is used to accommodate positional deviation, then reliability of connectivity is improved, but transmission loss increases and high-speed signal transmission capability deteriorates
Solution Approach 1:
The contact is divided into three functional segments: a first elastic portion for absorbing positional deviation, an adjustment portion for impedance control, and a second elastic portion for maintaining contact pressure. This segmentation allows each portion to optimize its function, reducing overall transmission loss while maintaining reliability.
Solution Approach 2:
Different portions of the contact have different cross-sectional areas and material properties optimized for their specific functions. The adjustment portion has a larger cross-sectional area for lower impedance, while the elastic portions have smaller areas for flexibility. This local optimization reduces transmission loss in critical areas while maintaining reliability elsewhere.
2Volume of moving object
If the connector size is reduced for miniaturization, then productivity and device compactness are improved, but the moving range of the second insulator is limited
Solution Approach 1:
The contact incorporates elastic portions that dynamically deform to provide floating movement. The first elastic portion allows the contact to move with the second insulator, while the second elastic portion maintains contact pressure. This dynamic elasticity enables a compact design with sufficient moving range.
Solution Approach 2:
The elastic modulus and cross-sectional area of the contact portions are carefully controlled to achieve the desired balance between compactness and moving range. By adjusting these parameters, the connector achieves miniaturization while maintaining adequate floating capability.
3Volume of moving object
If elastic portions with small cross-sectional area are used to reduce connector size, then miniaturization is improved, but electrical conductivity deteriorates
Solution Approach 1:
The contact is segmented into elastic portions for flexibility and an adjustment portion for conductivity. The adjustment portion has a larger cross-sectional area specifically designed to provide low impedance for high-speed signals, while the elastic portions remain small for miniaturization.
Solution Approach 2:
The cross-sectional area is locally optimized: smaller in elastic portions for compactness and flexibility, larger in the adjustment portion for electrical conductivity. This local quality differentiation resolves the contradiction between miniaturization and electrical performance.
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 connector achieves reliable high-speed signal transmission with reduced transmission loss and improved miniaturization, while maintaining reliable connectivity and preventing defects like short circuits and breakage, by optimizing the elastic deformation and structure of the contacts.
Implementation Method 1
a first elastic portion that extends from a first base supported by the first insulator and is elastically deformable; an adjustment portion that is formed to be continuous with the first elastic portion; a second elastic portion that extends to the second insulator from the adjustment portion and is elastically deformable
Data Source
AI summary
A connector (10) according to the present disclosure includes a first insulator (20), a second insulator (30) that is to be fitted to a connection object (70) and movable relative to the first insulator (20), and a contact (60) attached to the first insulator (20) and the second insulator (30). The contact (60) includes a first elastic portion (64A) that extends from a first base (61) supported by the first insulator (20) and is elastically deformable; an adjustment portion (64B) that is formed to be continuous with the first elastic portion (64A) and has a higher electrical conductivity than the first elastic portion (64A); a second elastic portion (64C) that extends to the second insulator (30) from the adjustment portion (64B) and is elastically deformable; and a contact portion (69) that electrically connects to the connection object (70) when the second insulator (30) and the connection object (70) are fitted together.