Rotatable Plug Assembly With Ring Contacts for Cord Twist Relief
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Solution Overview
Problem
Traditional power plugs are prone to causing damage and safety hazards due to torsional stress on power cords, especially in devices like vacuum cleaners and hair dryers, as they cannot rotate 360 degrees, leading to inconvenient insertion and potential cord breakages.
Innovation Solution
A rotatable electrical plug design featuring a non-rotating assembly with concentric ring-shaped conductors and a rotating assembly that allows 360-degree rotation, incorporating elastic metal conductors with arc-like structures and multiple arms for secure contact points, ensuring durability and ease of use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional fixed power plugs are used, then the structure is simple and cost is low, but the power cord is prone to torsional stress and damage when insertion holes have specified directions
Solution Approach 1:
The plug body is designed to rotate 360 degrees relative to the power cord through a rotating assembly mechanism. This dynamic capability allows the plug to adapt its orientation to match different socket directions, eliminating torsional stress on the power cord while maintaining structural simplicity
2Ease of operation
If rotatable power plugs are designed to rotate, then ease of insertion improves, but the structure becomes complex and cost increases
Solution Approach 1:
The plug is divided into a non-rotating assembly (power cord connection part) and a rotating assembly (electrode terminal part). This segmentation allows only the necessary portion to rotate, simplifying the overall structure while achieving the rotational function. The rotating assembly includes a rotating conductor with contact portions that engage with ring-shaped conductors, providing a straightforward mechanical rotation mechanism without complex components
3Adaptability or versatility
If traditional power plugs are used, then manufacturing cost is low, but the plug cannot rotate 360 degrees limiting adaptability
Solution Approach 1:
The rotating assembly enables 360-degree rotation of the electrode terminals relative to the power cord connection, allowing the plug to adapt to sockets in any direction. The dynamic rotation capability is achieved through a simple mechanism where the rotating conductor can freely rotate within the housing, providing full adaptability without complex structural modifications
Data Source
AI summary
The present disclosure provides a rotatable electrical plug including a non-rotating assembly configured for receiving and being coupled with power lines of the rotatable electrical plug, the non-rotating assembly comprising a substrate, a first ring-shaped conductor and a second ring-shaped conductor; a rotating assembly being rotatable 360 degrees relative to the non-rotating assembly, the rotating assembly comprising at least two electrode terminals; a first rotating conductor and a second rotating conductor connected to the first ring-shaped conductor and the second ring-shaped conductor respectively, at least one of the first rotating conductor and the second rotating conductor comprising a base and two arms extending from the base and extending in two non-parallel directions, each of the two arms including a contacting portion having a contacting surface, the contacting surfaces of the two arms contact two different positions of a same ring-shaped conductor of the first and the second ring-shaped conductors.