Movable Connector Contact Layout for High-Speed Signal Transmission
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Solution Overview
Problem
Conventional connectors face challenges in achieving both high-speed transmission characteristics and movability of the movable insulator, as adjusting the width or thickness of contacts to reduce characteristic impedance often results in larger connector sizes and reduced movability.
Innovation Solution
A connector with a frame-shaped first insulator and a movable second insulator, featuring pairs of contacts with elastically deformable portions that allow for favorable signal transmission while maintaining the movability of the movable insulator.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the width or thickness of contacts is increased to reduce characteristic impedance, then transmission characteristics are improved, but connector size increases and movability of the movable insulator is reduced
Solution Approach 1:
The contact is divided into multiple functional portions: a base portion for mechanical support, an elastic portion for signal transmission, and a first portion that extends toward the other contact. This segmentation allows each portion to be optimized independently - the elastic portion maintains thin profile for movability while the first portion provides the necessary surface area for low characteristic impedance
Solution Approach 2:
The first portion of the contact extends in the arrangement direction (lateral dimension) toward the other contact, rather than increasing width or thickness. This dimensional approach reduces the characteristic impedance by bringing contacts closer laterally without compromising the movability of the movable insulator in the mating direction
2Reliability
If the width or thickness of contacts is increased to reduce characteristic impedance, then transmission characteristics are improved, but connector size increases
Solution Approach 1:
The contact structure implements local quality by concentrating the impedance-control function in the first portion that extends toward the other contact, while the base portion and elastic portion maintain their original dimensions. This localized modification reduces characteristic impedance without increasing overall connector size
Solution Approach 2:
Instead of increasing contact width or thickness (which would increase connector size), the first portion extends in the arrangement direction between contacts. This lateral extension achieves lower characteristic impedance while maintaining a compact connector footprint
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 favorable transmission characteristics and maintains the movability of the movable insulator, addressing the design constraints of conventional connectors.
Implementation Method 1
an elastically deformable elastic portion located between the first bent portion and the second bent portion
Data Source
AI summary
A connector 10 according to the present disclosure includes multiple pairs of contacts 50 attached to a first insulator 20 and a second insulator 30. Each of the contacts 50 of a pair includes a first base portion 51, a second base portion 56, a first bent portion 53 bent from the first base portion 51, a second bent portion 55 bent from the second base portion 56, and an elastically deformable elastic portion 54 located between the first bent portion 53 and the second bent portion 55. In one contact of the contacts 50 a pair, a first surface of at least part of the elastic portion 54 faces the first surface of the elastic portion 54 of the other contact 50, and at least one of the first bent portion 53 or the second bent portion 55 includes a first portion extending from the corresponding base portion toward the other contact 50 in the arrangement direction.