Electrical Connector Layout With Shared Abutting Portion for Dense Soldering
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Solution Overview
Problem
Existing electrical connectors face limitations in terminal density due to the identical abutting directions of terminals to solder balls, leading to concentrated forces that can cause warping of the insulating body and hinder soldering stability.
Innovation Solution
The design incorporates abutting portions that allow one abutting portion to interact with two solder balls, featuring opposing abutting arms to distribute forces laterally, thereby reducing the need for additional abutting space and enhancing soldering stability by balancing forces across the insulating body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If each terminal has its own protruding block to abut against solder ball, then the soldering stability is improved, but the terminal quantity is reduced due to space occupation
Solution Approach 1:
The patent merges multiple protruding blocks into a single integrated abutting portion that serves multiple terminals. The abutting portion includes multiple abutting regions that can simultaneously or sequentially abut against solder balls of different terminals, reducing the overall space required while maintaining soldering stability for each terminal.
Solution Approach 2:
The abutting portion is designed as a multi-functional structure that can perform the soldering support function for multiple terminals. Each abutting region on the abutting portion can independently abut against a solder ball, allowing one component to serve multiple purposes and support multiple terminals.
2Device complexity
If all terminals abut against solder balls in the same direction, then the structure is simple, but the forces are concentrated causing insulating body warping
Solution Approach 1:
The patent introduces asymmetric force distribution by designing abutting regions that can abut against solder balls in different directions. The abutting portions are arranged such that forces from different terminals are distributed in multiple directions rather than concentrated in one direction, preventing insulating body warping while maintaining structural simplicity.
Data Source
AI summary
An electrical connector includes an insulating body having a bottom wall and a first terminal and a second terminal accommodated in the insulating body along a vertical direction. The bottom wall has a first abutting portion. The first terminal has a first abutting arm, and the second terminal has a second abutting arm. The first abutting portion is located between the first abutting arm and the second abutting arm. The first abutting arm and the first abutting surface clamp a first solder, and the first abutting arm exerts a first acting force directed toward the first abutting portion on the first solder. The second abutting arm and the second abutting surface clamp a second solder, and the second abutting arm exerts a second acting force directed toward the first abutting portion on the second solder.