Electrical Outlet Adapter With Friction Tabs For Plug Retention
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Solution Overview
Problem
Existing outlet devices fail to securely retain plugs within electrical sockets, leading to frequent dislodgment and potential safety hazards.
Innovation Solution
A female electrical outlet with a removably coupled adapter made of insulating material, featuring slots and tabs that frictionally engage the plug's terminals, ensuring they remain securely connected to the contacts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional electrical outlet is used without an adapter, then the structure is simple and easy to manufacture, but the plug can fall out of the socket causing dislodgment and safety hazards
Solution Approach 1:
The adapter serves as an intermediary component between the electrical outlet and the plug. It includes retention members that engage with the plug terminals to prevent dislodgment, while the adapter itself is retained in the outlet by friction or engagement features. This intermediary device solves the plug retention problem without requiring modification of the existing outlet structure.
2Reliability
If an adapter with retention mechanism is added to prevent plug dislodgment, then plug retention is improved, but the device complexity increases
Solution Approach 1:
The adapter is segmented into distinct functional components: retention members for engaging plug terminals, insulating material sections for electrical isolation, and structural elements for maintaining geometric relationship. This segmentation allows each component to perform its specific function efficiently while keeping the overall design manageable and manufacturable.
Solution Approach 2:
The adapter applies local quality by providing retention features only at specific locations where plug terminals make contact, rather than creating a completely enclosed structure. The insulating material is applied locally around conductive elements, and retention members are positioned only where needed to engage terminal ears, minimizing overall complexity.
3Reliability
If the adapter uses frictional engagement to retain plugs, then plug retention is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The adapter utilizes parameter changes by varying the friction characteristics of different surfaces. The retention members are designed with surface properties and geometric parameters that optimize frictional engagement with plug terminals. By adjusting parameters such as surface roughness, contact area, and normal force distribution, reliable retention is achieved without requiring extremely tight manufacturing tolerances.
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 adapter effectively prevents plug dislodgment by creating a frictional retention mechanism between the tabs and contacts, ensuring stable electrical connections and enhanced safety.
Implementation Method 1
The adapter inhibits the terminals from falling out of the contacts
Data Source
AI summary
An electrical outlet system for includes a female electrical outlet that is electrically coupled to a power source. The female electrical outlet has a pair of contacts. An adapter is removably coupled to the female electrical outlet and the adapter is positioned in each of the contacts. A plug is provided that has a pair of terminals. Each of the terminals is inserted through the adapter such that each of the terminals is electrically coupled to an associated one of the contacts. The adapter inhibits the terminals from falling out of the contacts.