High Speed Wire End Connector Positioning and Signal Integrity
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Solution Overview
Problem
Conventional Slim SAS transmission lines experience significant signal attenuation and positioning issues due to component tolerances, limiting the increase in transmission rate and quality in high-speed electronic devices.
Innovation Solution
A high-speed wire end connector design incorporating a printed circuit board, cable, inner film, outer casing, and molded bonding layer, with a metal spring latch and limiting protrusions, which reduces the printed circuit board length and improves position accuracy and water resistance, enhancing transmission quality and rate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the printed circuit board length is increased to improve connection stability, then the connector reliability is improved, but the signal attenuation increases and transmission rate decreases
Solution Approach 1:
The printed circuit board is divided into two separate parts: a first circuit board for the male connector and a second circuit board for the female connector. This segmentation allows each board to be optimized independently, reducing the effective signal path length while maintaining connection stability through precise alignment features.
Solution Approach 2:
A positioning structure consisting of positioning protrusions and positioning recesses is introduced as an intermediary mechanism between the two circuit boards. This positioning structure ensures accurate alignment and stable connection without requiring excessive board length, thereby reducing signal attenuation while maintaining reliability.
2Ease of manufacture
If component tolerances are relaxed to reduce manufacturing complexity, then the ease of manufacture is improved, but the positioning accuracy between connectors deteriorates
Solution Approach 1:
The positioning protrusions and positioning recesses are pre-formed on the circuit boards during the manufacturing process. This preliminary action establishes precise positioning capabilities before assembly, allowing standard tolerance components to achieve high positioning accuracy through the built-in mechanical guidance of the positioning structures.
Solution Approach 2:
The positioning structure enables self-alignment during connector assembly. The positioning protrusions automatically fit into the corresponding positioning recesses, providing self-correcting positioning that compensates for normal manufacturing tolerances without requiring complex adjustment procedures or specialized assembly equipment.
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 design effectively improves the transmission rate and quality by reducing signal attenuation and positioning errors, while increasing the water resistance and production quality of high-speed wire end connectors.
Implementation Method 1
The molded bonding layer bonds the outer casing to the inner film
Implementation Method 2
a metal spring latch is mounted on the outer casing
Implementation Method 3
The cable is soldered to the printed circuit board
Data Source
AI summary
A high speed wire end connector includes a printed circuit board, a cable, an inner film, an outer casing, and a molded bonding layer. The cable is soldered to the printed circuit board, the inner film covers a part of the cable and a part of the printed circuit board, and the outer casing is used to fix the printed circuit board, the cable and the printed circuit board, and a part of the printed circuit board is passed through a guide hole of the outer casing. The molded bonding layer bonds the outer casing to the inner film. In addition, a metal spring latch is mounted on the outer casing.