Nightlight Flange Locking Behind Wall Plate to Prevent Child Removal
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 locking element, such as a flange, that extends behind an electrical wall plate, preventing removal without first disconnecting the wall plate, combined with a housing that covers the nightlight body and includes a photosensor for automatic lighting control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional nightlights are designed without locking elements, then they are easy to install and remove, but children can easily remove them causing safety risks
Solution Approach 1:
The locking mechanism is segmented into separate components: a flange extending from the nightlight body and a corresponding recess in the wall plate. This allows the safety function to be added as a distinct feature rather than integrating it into the entire device, maintaining simplicity while improving reliability.
Solution Approach 2:
The flange acts as an intermediary element between the nightlight body and the wall plate. It mediates the interaction by providing a mechanical barrier that prevents removal, thus enhancing safety without requiring complex locking mechanisms or modifying the basic plug structure.
2Reliability
If a flange locking element is added to prevent removal, then child safety is improved, but the device structure becomes more complex
Solution Approach 1:
The locking function is localized to a specific region - the flange extending from the body of the nightlight. Rather than making the entire device complex, only the necessary portion (the flange and its interaction with the wall plate recess) is modified to provide the locking function, keeping the rest of the device simple.
Solution Approach 2:
Instead of adding active locking mechanisms that require engagement actions, the design uses a passive inverted approach: the flange naturally rests against the wall plate recess, and removal requires overcoming this passive mechanical barrier. This inversion simplifies the mechanism by eliminating the need for active locking components.
3Reliability
If the flange extends behind the wall plate to prevent removal, then the nightlight becomes tamper-resistant, but the installation process becomes more difficult
Solution Approach 1:
The wall plate is designed with a recess that is prepared in advance during manufacturing. This preliminary preparation of the mounting surface allows the flange to simply snap into or rest against the pre-formed recess, eliminating the need for complex installation procedures or modifications to the wall plate during installation.
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 housing includes a photosensor for automatic lighting control
Implementation Method 2
the at least one circuit comprising at least one light emitting diode (LED)
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.