Sliding-Cover Power Outlet Module for Secure Plug Retention
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Solution Overview
Problem
Existing electrical sockets and plugs are prone to unintentional disconnection and damage due to pulling forces, leading to potential fires and the need for socket replacement.
Innovation Solution
A power distribution unit with sliding covers that engage with power cord plugs, utilizing a spring mechanism to secure the connection between the socket and plug, preventing disconnection and damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional socket and plug connection is used, then the structure is simple, but the connection is not secure and can be unintentionally disconnected
Solution Approach 1:
The sliding cover is designed to move dynamically between an open position (for plug insertion) and a closed position (for secure locking). This dynamic mechanism allows the socket to transition from an accessible state to a locked state, preventing unintentional disconnection while maintaining structural simplicity
Solution Approach 2:
The sliding cover acts as an intermediary element between the user and the electrical connection. It provides a mechanical interface that locks the plug in place through engagement with the plug body, thereby securing the connection without requiring complex internal socket structures
2Reliability
If a secure connection mechanism is added to prevent disconnection, then the connection security improves, but the device complexity increases
Solution Approach 1:
The spring mechanism provides automatic engagement and locking functionality. When the plug is inserted, the spring automatically pushes the sliding cover into the locked position, and when the plug is removed, the spring automatically returns the cover to the open position. This self-service mechanism eliminates the need for manual locking operations and complex control systems
Solution Approach 2:
The socket is segmented into functional modules: the stationary socket body, the movable sliding cover, and the spring mechanism. This segmentation allows each component to perform its specific function independently while working together to achieve secure connection, thereby managing complexity through functional decomposition
3Ease of manufacture
If the socket structure is simplified, then the ease of manufacture improves, but the ability to prevent damage and unintentional disconnection deteriorates
Solution Approach 1:
The sliding cover and spring mechanism constitute a relatively simple, low-cost protective system that can be easily manufactured and replaced if needed. This approach prioritizes ease of manufacture while providing sufficient protection against damage and unintentional disconnection through simple mechanical means rather than complex expensive systems
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 solution provides a secure and reliable connection between the socket and plug, reducing the risk of unintentional disconnection and damage, thereby enhancing safety and extending the lifespan of the socket and plug.
Implementation Method 1
a spring mechanism connecting between the sliding cover and the outer casing of the socket for holding the sliding cover in an initial position
Implementation Method 2
the sliding cover is slidable from the initial position to a release position against a biasing force of the spring mechanism
Data Source
AI summary
A power distribution unit includes a housing; a plurality of power outlet modules accommodated in the housing, at least one of the power outlet modules including a socket having at least three electrical terminals which are configured to connect with one power cord plug of various types of power cord plugs, including a C14 plug and a C20 plug, and a sliding cover having a central opening, the sliding cover being slidable on an outer casing of the socket and engageable with the power cord plug when the power cord plug is completely inserted into the socket, thereby providing a secure connection between the socket and the power cord plug; and at least one power input module providing power to the power outlet modules.