Receptacle Connector Terminal Structure for Stable High-Speed Positioning
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Solution Overview
Problem
The existing plate spring-type connecting pin has unstable positioning due to the higher position of locking protruding portions, leading to shaky connections and compromised signal integrity in electrical connectors, especially when transferring high-speed signals.
Innovation Solution
A terminal design featuring a soldering segment, upright arm, and bending arm with shoulder portions that protrude to enhance stability, along with an insulative housing with specific groove configurations, ensures better positioning and signal integrity by using shoulder portions to press against step portions and maintaining preloaded force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the locking protruding portions are positioned higher close to the lip portion, then the terminal can be engaged with the insulative housing, but the positioning stability deteriorates and the connection becomes shaky
Solution Approach 1:
The terminal is divided into multiple functional segments: the soldering segment for electrical connection, the upright arm for structural support, and the bending arm with elastic bending segment for flexible engagement. This segmentation allows each part to perform its specific function optimally, with the bending arm's elastic segment providing both engagement capability and positioning stability through its deformation characteristics.
Solution Approach 2:
The patent changes the geometric parameters of the terminal structure, specifically positioning the shoulder portion at a lower height relative to the soldering segment compared to the lip portion. This parameter change in vertical positioning creates a step portion interaction that enhances positioning stability while maintaining engagement capability through the bending arm's elastic deformation.
2Device complexity
If the terminal structure is simplified for low profile design, then the manufacturing cost is reduced, but the signal integrity deteriorates in high speed transferring
Solution Approach 1:
The patent applies local quality by creating shoulder portions at specific locations on the upright arm and bending arm that protrude relative to the soldering segment. These localized structural features provide enhanced positioning and signal integrity at critical interfaces without requiring complex overall structure, maintaining low profile while ensuring reliable high-speed signal transfer through precise local geometry.
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 terminal design achieves stable positioning and improved signal integrity by utilizing shoulder portions to secure the terminal within the housing, reducing the likelihood of shaky connections and enhancing signal transfer efficiency.
Implementation Method 1
an elastic bending segment which first extends from the lower bending segment away from the upright arm and then bends back and obliquely extends upwardly close to the upright arm
Data Source
AI summary
A terminal and a receptacle connector are provided. The terminal comprises a soldering segment, an upright arm and a bending arm. The soldering segment has a first end portion and the upright arm extends upwardly from the first end portion. The bending arm bends back and obliquely extends upwardly close to the upright arm and includes an upper bending segment and a contact segment extends upwardly from the upper bending segment. A shoulder portion is formed at each of at least one side edge of two side edges of each of at least one of the upright arm and the bending arm, the two side edges are connected with the soldering segment, the shoulder portion protrudes relative to a corresponding side edge of the soldering segment.