Floating Electrical Connector with Multi-Impedance Contacts
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Solution Overview
Problem
Existing connectors with floating structures do not adequately support high-speed and large-capacity signal transmission, as they do not effectively manage impedance and accommodate positional deviations between substrates.
Innovation Solution
The connector design includes contacts with a first elastic portion, a first adjustment portion with higher conductivity, a second adjustment portion with lower conductivity, and a second elastic portion, which collectively adjust impedance and allow for relative movement between the connector and connection object, ensuring reliable high-speed transmission and miniaturization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a floating structure is used to accommodate positional deviations between substrates, then connectivity reliability is improved, but impedance control for high-speed signal transmission deteriorates
Solution Approach 1:
The contact structure is divided into distinct portions with different electrical conductivities: a first elastic portion, a first adjustment portion with higher conductivity, and a second adjustment portion with lower conductivity. This local differentiation of properties allows each section to perform its specific function - elastic deformation for accommodation, high conductivity for signal transmission, and low conductivity for impedance matching - thereby resolving the contradiction between reliability and impedance control.
Solution Approach 2:
The patent changes the electrical conductivity parameter along the contact structure by introducing adjustment portions with different conductivity values. The first adjustment portion has higher conductivity than the elastic portion, while the second adjustment portion has lower conductivity, creating an impedance profile that maintains signal integrity despite the floating structure's movement capability.
2Volume of moving object
If the connector is miniaturized, then device size is reduced, but impedance management for high-speed transmission becomes more difficult
Solution Approach 1:
Within the miniaturized contact structure, different portions are assigned specific conductivity characteristics. The first adjustment portion with higher conductivity and the second adjustment portion with lower conductivity are integrated into the compact design, allowing impedance management to be achieved within the reduced volume through localized property differentiation rather than through overall dimensional scaling.
3Adaptability or versatility
If floating contacts are used to accommodate positional deviations, then adaptability to substrate misalignment is improved, but signal transmission quality for high-speed applications deteriorates
Solution Approach 1:
The contact structure incorporates adjustment portions with differentiated conductivity - the first adjustment portion with higher conductivity than the elastic portion, and the second adjustment portion with lower conductivity. This local quality differentiation enables the floating contact to adapt to misalignment through elastic deformation while maintaining signal transmission quality through controlled impedance transitions in the adjustment portions.
Solution Approach 2:
The electrical conductivity parameter is varied along the contact structure to optimize both adaptability and signal quality. The elastic portion allows movement for adaptability, while the adjustment portions with different conductivity values create impedance transitions that maintain signal integrity during high-speed transmission, resolving the contradiction between adaptability and transmission quality.
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 enhances signal transmission characteristics by impedance matching and accommodating positional deviations, resulting in improved reliability and reduced transmission loss, while contributing to the miniaturization of the connector.
Implementation Method 1
a first elastic portion that is elastically deformable and extends from a first base supported by the insulator
Implementation Method 2
a first adjustment portion that is formed continuously with the first elastic portion and has an electric conductivity higher than that of the first elastic portion; and a second adjustment portion that is formed continuously with the first adjustment portion and has an electric conductivity lower than that of the first adjustment portion
Data Source
AI summary
A connector (10) according to the present disclosure includes an insulator to be fitted to a connection object (60), and contacts (50) attached to the insulator. Each of the contacts (50) includes a contact portion (59), a first elastic portion (54A), a first adjustment portion (54B1), and a second adjustment portion (54B2). The contact portion (59) electrically contacts the connection object (60) when the insulator and the connection object (60) are fitted together. The first elastic portion (54A) is elastically deformable and extends from a first base (51) supported by the insulator. The first adjustment portion (54B1) is formed continuously with the first elastic portion (54A) and has an electric conductivity higher than that of the first elastic portion (54A). The second adjustment portion (54B2) is formed continuously with the first adjustment portion (54B1) and has an electric conductivity lower than that of the first adjustment portion (54B1).