Nightlight Locking Flange Structure for Child Tamper Resistance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional nightlights are not tamper-resistant, allowing children to easily remove them, which can lead to safety risks and unintended exposure to electrical receptacle openings.
Innovation Solution
A tamper-resistant nightlight design featuring a housing with a locking element, such as a flange, that extends behind an electrical wall plate, preventing removal while the plate is coupled, combined with a photosensor circuit for automatic lighting control and a selector switch for user-adjustable operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional nightlights are designed without locking elements, then they are simple and easy to manufacture, but children can easily remove them creating safety hazards
Solution Approach 1:
The locking element is nested within the housing structure, with the flange extending through the housing to engage with the electrical wall plate. This integration allows the locking function to be incorporated without adding a separate, complex external mechanism, thus improving safety while maintaining manufacturing simplicity
Solution Approach 2:
The locking element extends in a new dimension (through the housing and behind the wall plate) rather than adding complexity to the front-facing components. This dimensional extension provides tamper-resistance by anchoring the nightlight to the wall plate without complicating the primary housing structure
2Reliability
If a locking element is added to prevent removal, then safety is improved, but the device becomes more complex and harder to manufacture
Solution Approach 1:
The locking element is merged with the housing as an integrated component rather than a separate attachment. This consolidation allows the housing and locking mechanism to be manufactured as a single unit or pre-assembled assembly, reducing the number of separate manufacturing steps and quality control checkpoints
Solution Approach 2:
The locking element is designed as a distinct segment (flange) within the housing structure that can be independently formed or attached. This segmentation allows for specialized manufacturing techniques for the locking portion while keeping the rest of the housing manufacturing simple, thus improving tamper-resistance without significantly increasing overall manufacturing complexity
3Reliability
If the flange extends behind the wall plate to prevent removal, then child safety is enhanced, but the nightlight cannot be easily removed for cleaning or replacement
Solution Approach 1:
The locking mechanism provides dynamic resistance to removal forces - it firmly prevents accidental removal by children through the flange engagement with the wall plate, but allows intentional removal by adults who can apply sufficient force or use appropriate tools to disengage the flange from the wall plate opening
Solution Approach 2:
The flange creates preliminary resistance to removal by engaging with the wall plate structure before any removal action can occur. This preliminary engagement prevents casual or accidental removal while still permitting controlled removal when needed, as the engagement can be deliberately disengaged by applying force to overcome the flange's restraining position
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
Effectively restricts children from unplugging the nightlight, enhancing safety by preventing accidental removal and exposure to electrical hazards while providing automatic lighting adjustment based on ambient conditions.
Implementation Method 1
the at least one circuit comprising at least one light emitting diode (LED)
Implementation Method 2
The at least one circuit may comprise a photosensor circuit, the tamper resistant nightlight further comprising a photosensor coupled to the photosensor circuit and configured to detect ambient light
Data Source
AI summary
A tamper resistant nightlight for placement in an electrical receptacle, the nightlight includes a body that has a base with an LED circuit and plug blades extending from the body. A housing includes a locking element configured to restrict a child from removing the nightlight from the electrical receptacle through a flange that extends away from the body to be positioned behind a rear surface of an electrical wall plate associated with the electrical receptacle to prevent the tamper resistant nightlight from being removed from the electrical receptacle while the electrical wall plate is coupled to the electrical receptacle.