Connector Floating Structure Wide Contact Impedance
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Solution Overview
Problem
Conventional electrical connectors with floating structures struggle to achieve satisfactory transmission characteristics for high-speed signal transmission, particularly when the ideal characteristic impedance needs to be lower than the standard 100Ω, as they cannot effectively accommodate the increased demands of high-capacity and high-speed data transfer.
Innovation Solution
The connector design incorporates a floating structure with wide portions on the contacts that protrude orthogonally to their arrangement direction, allowing for elastic deformation and adjusting the characteristic impedance by varying the cross-sectional areas, thereby matching the ideal impedance value and enhancing transmission characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional floating structure connectors are used, then connection reliability is improved through deviation accommodation, but transmission characteristics for high-speed signal transmission deteriorate due to inability to achieve ideal characteristic impedance
Solution Approach 1:
The contact structure is divided into distinct portions with different cross-sectional areas: a first portion with a first cross-sectional area and a second portion with a second cross-sectional area that is larger than the first. This local variation in geometry allows different sections of the same contact to serve different functions - one section for mechanical flexibility and another for impedance control, thereby resolving the contradiction between connection reliability and transmission characteristics
Solution Approach 2:
The invention changes the geometric parameters of the contact by varying the cross-sectional area along its length. Specifically, the second portion has a larger cross-sectional area than the first portion, which directly affects the characteristic impedance of the transmission path. This parameter modification enables achievement of ideal characteristic impedance for high-speed signal transmission while maintaining the floating structure's deviation accommodation capability
2Reliability
If floating structure is implemented to accommodate deviation, then connection reliability improves, but characteristic impedance control deteriorates
Solution Approach 1:
By creating local quality differences in the contact structure through varying cross-sectional areas, the invention enables the same floating contact to simultaneously provide mechanical compliance for deviation accommodation and electrical properties for characteristic impedance control, thus resolving the contradiction between reliability and adaptability
3Ease of manufacture
If conventional contact design is used, then manufacturing is simpler, but transmission characteristics for high-capacity high-speed data transfer deteriorate
Solution Approach 1:
The invention modifies the geometric parameters of the contact by creating portions with different cross-sectional areas. This can be achieved through various manufacturing methods such as differential plating, selective machining, or forming processes, allowing the complex geometry to be manufactured while maintaining transmission characteristics suitable for high-capacity high-speed data transfer
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
This design achieves improved transmission characteristics for high-speed and high-capacity data transfer by effectively matching the characteristic impedance, reducing signal loss, and allowing for miniaturization while maintaining reliable connectivity and preventing electrical defects like short circuits.
Implementation Method 1
allowing for elastic deformation and adjusting the characteristic impedance by varying the cross-sectional areas
Data Source
AI summary
A connector (10) according to the present disclosure is the connector (10) to be fitted to a connection object (60) and includes a first insulator (20), a second insulator (30) movable relative to the first insulator (20), and a plurality of arranged contacts (50) attached to the first insulator (20) and the second insulator (30). Each of the contacts (50) includes a wide portion located on at least one of a first insulator side and a second insulator side. The wide portion protrudes from another portion of each of the contacts (50) that extends along one of the insulators where the wide portion is located toward the other insulator in a direction substantially orthogonal to an arrangement direction of the contacts (50).