Plug Connector Pin Segmentation for Assembly and Contact
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Solution Overview
Problem
The assembly of plug connectors in communication modules is challenging due to the narrow gap between upper and lower connection pins, requiring precise alignment and effort, and wide gaps lead to insufficient pressure contact and deterioration of electric characteristics.
Innovation Solution
A plug connector design with a flange portion and opposing intervals between signal and ground pins, where the rear end portions of the pins are longer than the front end portions, facilitating assembly and maintaining electric characteristics by allowing the module board to be inserted between the pins, which then come into pressure contact through elastic deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the gap between upper and lower connection pins is made narrow to maintain electric characteristics, then pressure contact force is improved, but assembly difficulty increases and time is required
Solution Approach 1:
The connection pins are segmented into upper and lower rows with different opposing intervals. The first connection pins (signal pins) have a first opposing interval, while the second connection pins (ground pins) have a second opposing interval that is larger than the first. This segmentation allows different functional requirements to be met simultaneously: signal pins maintain narrow spacing for good electric characteristics, while ground pins have wider spacing for easier assembly and board insertion.
2Ease of operation
If the gap between upper and lower connection pins is made wide to facilitate assembly, then ease of operation is improved, but pressure contact force becomes insufficient and electric characteristics deteriorate
Solution Approach 1:
Different opposing intervals are applied to different groups of connection pins based on their local functional requirements. Signal pins require narrow opposing intervals to maintain good electric characteristics and pressure contact, while ground pins benefit from wider opposing intervals that facilitate assembly and board insertion. This local differentiation of geometric parameters optimizes both electric performance and assembly ease without compromise.
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
This design simplifies the assembly of the plug connector while maintaining optimal electric characteristics by ensuring proper contact and reducing insertion resistance, avoiding pin stubs and interference issues.
Implementation Method 1
the upper connection pins and the lower connection pins come into pressure contact with the corresponding connection pads by elastic restoring forces of the upper connection pins and the lower connection pins
Data Source
AI summary
A communication module includes a plug connector provided with upper connection pins and lower connection pins. The upper connection pins and the lower connection pins include signal pins each connected to a signal line arranged in a module board, and ground pins each connected to a ground line arranged in the module board. An opposing interval between a terminal end of a rear end portion of each of the ground pins included in the upper connection pins, and a terminal end of a rear end portion of each of the ground pins included in the lower connection pins is longer than an opposing interval between a terminal end of a rear end portion of each of the signal pins included in the upper connection pins and a terminal end of a rear end portion of each of the signal pins included in the lower connection pins.