Electrical Connector Terminals Vertical Clamping Single-Pass Assembly
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Solution Overview
Problem
Existing electrical connectors require multiple assembly processes due to the large extension widths of clamping portions, leading to gaps between terminals that are greater than the gaps between receiving holes, necessitating the design of terminals to skip gaps during assembly.
Innovation Solution
The electrical connector design includes terminals with a soldering portion and a clamping portion that together fix a solder ball, allowing for single-time assembly into a row of receiving holes, using a metal member with a fixing portion and a connection portion to stabilize the solder ball, reducing gaps between terminals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the extension widths of clamping portions are made great to ensure reliable clamping of solder balls, then the clamping reliability is improved, but the gaps between terminals become greater than the gaps between receiving holes, necessitating multiple assembly processes
Solution Approach 1:
The clamping portion is designed to extend downward from the soldering portion, utilizing the vertical dimension rather than horizontal extension. This allows the clamping function to be achieved in the vertical direction while maintaining compact horizontal dimensions, enabling terminals to be arranged closely without requiring multiple assembly processes.
Solution Approach 2:
The clamping portion is integrated within the structure of the terminal, nested within or alongside the soldering portion. This nesting allows the clamping function to be incorporated without adding significant external dimensions, maintaining compact terminal spacing for single-pass assembly.
2Productivity
If the extension widths of clamping portions are reduced to enable single-time assembly, then the assembly efficiency is improved, but the clamping reliability may be compromised
Solution Approach 1:
By transitioning the clamping portion to extend in the vertical direction rather than horizontally, the design achieves compact terminal spacing for single-time assembly while maintaining effective clamping through vertical engagement with the solder ball.
Solution Approach 2:
The orientation and direction of the clamping portion are changed from horizontal extension to vertical extension. This parameter change allows the clamping mechanism to function effectively with reduced horizontal dimensions, enabling single-pass assembly while maintaining reliability.
3Ease of manufacture
If terminals are designed to skip gaps during assembly, then the assembly process becomes more complex with multiple steps, but the terminal arrangement can accommodate larger gaps between terminals
Solution Approach 1:
The vertical extension of the clamping portion enables compact horizontal spacing of terminals, allowing all terminals to be assembled in a single pass through the receiving holes without needing to skip gaps or perform multiple assembly operations.
Solution Approach 2:
The clamping portion is pre-configured in the terminal structure before assembly, positioned to extend downward and engage the solder ball. This preliminary configuration ensures that during single-time assembly, the clamping function is automatically performed without requiring additional assembly steps or gap-skipping maneuvers.
Data Source
AI summary
An electrical connector for electrically connecting a chip module to a circuit board, includes an insulation body having multiple receiving holes vertically running through the insulation body, multiple terminals respectively accommodated in the receiving holes, and multiple metal members not in contact with the chip module. Each metal member and the corresponding terminal are accommodated in a same receiving hole. Each metal member and the corresponding terminal clamp and fix a solder ball together, so that the solder ball is stably fixed by the terminal, thereby greatly reducing gaps between terminals on a strip, so that the terminals do not need to be designed by skipping gaps. When the terminals are assembled into a same row of receiving holes, the insertion of the terminals into the same row of receiving holes may be completed in one time.