Toolless DC Connector Locking With Ground-First Release
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Solution Overview
Problem
Existing direct current connectors in information handling systems often require tools for installation and removal, posing challenges in efficiency and safety during maintenance and upgrades.
Innovation Solution
A toolless direct current connector with a frame, plug, and toolless component that transitions between locked and unlocked positions, allowing secure and safe insertion and removal without tools, with a ground terminal ensuring the last connection and first disconnection for enhanced safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional direct current connectors are used, then secure electrical connection is achieved, but tools are required for installation and removal which reduces efficiency and increases safety risks
Solution Approach 1:
The connector employs a dynamic toolless component that transitions between locked and unlocked positions. The locked position secures the plug firmly in the receptacle for reliable electrical connection, while the unlocked position allows easy removal. This dynamic mechanism resolves the contradiction by providing both secure connection during operation and ease of removal when needed, eliminating the need for tools while maintaining connection security.
2Productivity
If installation and removal operations are simplified, then maintenance efficiency is improved, but electrical safety during operation may be compromised
Solution Approach 1:
The connector design incorporates preliminary grounding action through the toolless component mechanism. The ground terminal is positioned to establish electrical ground connection before power terminals engage during insertion, and vice versa during removal. This preliminary grounding action prevents electrical hazards by ensuring safe discharge paths are established before power connection, thereby maintaining both maintenance efficiency and electrical safety.
3Speed
If toolless operation is implemented, then installation and removal speed is increased, but connection stability may be reduced
Solution Approach 1:
The connector is segmented into distinct functional components: the plug, the receptacle, and the toolless component with locked/unlocked positions. This segmentation allows each component to perform its specific function optimally - the plug and receptacle provide stable electrical connection, while the toolless component provides rapid engagement and disengagement through its two-position mechanism. The segmented design achieves both fast operation and stable connection by distributing functions across separate components.
Data Source
AI summary
A toolless direct current connector includes a frame, a plug, and a toolless component. The plug is in physical communication with the frame. The plug includes a power terminal, a return terminal, and a ground terminal. The plug to be secured within a receptacle of a power supply unit. The toolless component is in physical communication with the frame and with the plug. The toolless component transitions between a locked position and an unlocked position. The toolless component releases the plug from within the receptacle of the power supply unit when the toolless component transitions from the locked position to the unlocked position.