Rotatable Electrical Receptacle Cover With Locking Arms
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Solution Overview
Problem
Electrical receptacles pose a risk of electrical injury and death due to direct contact, especially for children, as the human body conducts electricity easily, and existing safety measures are inadequate in preventing unauthorized access.
Innovation Solution
A protective enclosure for electrical receptacles made from low-conductivity materials like insulators, with a rotatable covering mechanism that can be affixed to standard outlets, featuring a 'locked' state to restrict access and a 'unlocked' state for maintenance, using materials such as plastics and insulating coatings, and manufacturing processes like injection molding or 3D printing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a protective enclosure is installed to prevent children from accessing electrical outlets, then safety against electrical shock is improved, but access for maintenance and installation becomes more difficult
Solution Approach 1:
The enclosure incorporates a rotatable covering mechanism that can transition between locked and unlocked states. The cover rotates about an axis to move from a first position (blocking access) to a second position (allowing access), enabling dynamic control of accessibility while maintaining protection during normal operation.
Solution Approach 2:
The enclosure features differentiated access mechanisms: a locked state for child safety and an unlocked state for adult maintenance. The mechanical assembly includes specific components (locking arms, apertures, protrusions) that enable selective access without compromising overall safety functionality.
2Reliability
If a locked mechanism is used to restrict child access, then safety is improved, but device complexity increases
Solution Approach 1:
The protective enclosure is divided into distinct functional components: a main body, a rotatable cover, locking arms with apertures, and protrusions. This segmentation allows each component to perform its specific function independently while simplifying the overall design and manufacturing of the locking mechanism.
Solution Approach 2:
The locking mechanism uses simple intermediary elements (locking arms, apertures, protrusions) that mediate between the cover and the outlet. These intermediaries enable the locked state through straightforward geometric engagement rather than complex mechanical systems.
3Reliability
If insulating materials are used to prevent electrical conduction, then electrical safety is improved, but manufacturing precision requirements increase
Solution Approach 1:
The protective enclosure is constructed from insulating materials such as plastics or insulating coatings that provide electrical resistance. The use of composite or coated materials allows achievement of reliable insulation properties while accommodating normal manufacturing variations through material redundancy.
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 enclosure effectively reduces the risk of electrical injury by restricting child access to electrical outlets through its 'locked' state while allowing easy installation and maintenance in the 'unlocked' state, utilizing materials with high electrical resistivity to prevent electrical shock.
Implementation Method 1
made from low-conductivity materials like insulators... utilizing materials with high electrical resistivity to prevent electrical shock
Data Source
AI summary
Various embodiments for electrical receptacle protective enclosures (“ERPE”) are disclosed. The ERPE includes an enclosure configured to be demountably affixed to an electrical receptacle. The enclosure includes a main body and covering rotatably coupled to the main body and having locking arms extending therefrom. The enclosure includes “closed,”“open,”“locked,” and “unlocked” states. The main body includes a mechanical fastening assembly positioned near apertures and configured to rotate in a common plane with a wall of the main body. The locking element comprises an indentation and a plate region positioned opposite the indentation. In the unlocked state, the indentation is aligned with the aperture and allows the locking arm to traverse the indentation and the protrusion to engage the aperture. In the locked state, the plate region is aligned with the aperture and restricts the locking arm from traversing the indentation and the protrusion from disengaging the aperture.