Electrical Connector Bending Section Solder Filling Space
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Solution Overview
Problem
Electrical connectors with soldering wires experience higher impedance due to the exposure of soldered joints to air, which affects signal transmission performance.
Innovation Solution
The electrical connector design includes terminals with a bending section that forms a filling space for solder, increasing the conducting area on the soldering portion, thereby enhancing capacitance and reducing impedance, while also improving soldering strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the soldering joint is exposed to air, then the soldering process is simple and accessible, but the impedance increases and signal transmission performance deteriorates
Solution Approach 1:
The patent applies local quality by creating a bending section only at the soldering portion of the terminal, while other parts maintain their original structure. This localized structural change defines a filling space that captures solder and reduces impedance at the critical joint area without complicating the overall manufacturing process or other terminal sections
2Reliability
If the soldering portion is designed with a bending section to reduce impedance, then signal transmission performance improves, but the device structure becomes more complex
Solution Approach 1:
The terminal is segmented into distinct functional sections: a fixed portion for housing mounting, a contact portion for electrical connection, and a soldering portion with a bending section for wire attachment. This segmentation allows the bending section to be implemented only where needed for impedance control, maintaining simplicity in other areas
3Reliability
If the filling space is fully filled with solder, then impedance is minimized and capacitance is maximized, but the manufacturing precision requirement increases
Solution Approach 1:
The bending section is pre-formed during terminal manufacturing to create the filling space structure before soldering occurs. This preliminary structural preparation guides the solder flow and containment during the soldering process, making it easier to achieve full filling without requiring extremely precise control during the soldering operation itself
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 increased capacitance effect reduces impedance and enhances soldering strength by fully filling the soldering space, allowing for better signal transmission and reliable connections.
Implementation Method 1
increasing the capacitance effect and in turn reducing the impedance
Implementation Method 2
increasing the capacitance effect and in turn reducing the impedance
Data Source
AI summary
An electrical connector comprises an insulative housing, a plurality of terminals and a plurality of wires. The plurality of terminals are fixed to the insulative housing, each terminal has a fixed portion fixed to the insulative housing and a contact portion and a soldering portion which are respectively connected to the fixed portion, the soldering portion of each terminal of at least a part of the plurality of terminals is formed with a bending section, and an inner surface of the bending section defines a filling space for filling a solder. A plurality of wires are respectively soldered to the soldering portions of the plurality of terminals and make the solder filled in each filling space.