Anti-Shock Night Light with Retractable Pins
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Solution Overview
Problem
Conventional night lights pose a risk of electric shock when plugging or unplugging, especially in households with children, as they lack protection against accidental contact with metal plugs.
Innovation Solution
An anti-shock night light design featuring a movable anti-shock device with an insulating housing and elastic resetting member that retracts pins into the night light main body when plugged in, using springs to reset and block the pins when unplugging, preventing finger contact with the plug.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the pins are exposed for easy plugging, then the ease of operation is improved, but the risk of electric shock increases
Solution Approach 1:
The anti-shock device is designed to be movable rather than fixed, allowing it to dynamically adjust its position between extended (blocking pins) and retracted (exposing pins) states. This dynamic mechanism enables the device to automatically transition between safety mode and operation mode, resolving the contradiction between ease of operation and electric shock prevention.
Solution Approach 2:
The anti-shock device acts as an intermediary element between the user's fingers and the electrically conductive pins. When extended, it physically blocks direct contact with the pins, providing a protective barrier that eliminates the electric shock hazard while still allowing the plugging operation to proceed when retracted.
2Object-affected harmful factors
If the pins are retracted for safety, then the electric shock risk is reduced, but the ease of operation deteriorates
Solution Approach 1:
The anti-shock device is positioned in the extended (protective) state by default before plugging occurs. This preliminary protective action is automatically reversed when needed - the device is designed to be pushed into the retracted position during the plugging action itself, so the protective measure is temporarily lifted only when the operation requires it.
Solution Approach 2:
The mechanism is designed to automatically transition from the protective extended state to the operational retracted state through the natural force of the plugging action itself. The user does not need to manually operate the anti-shock device; the act of inserting the plug into the socket automatically pushes the device into the correct position, making the system self-regulating.
3Object-affected harmful factors
If the anti-shock device is added, then the safety is improved, but the device complexity increases
Solution Approach 1:
The anti-shock device utilizes a spring-loaded mechanism with simple geometric components rather than complex mechanical assemblies. The spring provides the resetting force, and the housing with opening provides the blocking function, creating a safety mechanism that is structurally simple despite its effective protective function.
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 anti-shock night light effectively prevents electric shock by ensuring the pins are safely retracted and blocked from accidental contact, enhancing safety, especially in family environments.
Implementation Method 1
the elastic resetting member generates an elastic resetting force
Data Source
AI summary
An anti-shock night light comprises pins, a night light main body, an anti-shock device, and an elastic resetting member. A first end of the anti-shock device is movably connected to an opening to enable the anti-shock device to move in a length direction of the pins, and a second end of the anti-shock device extends away from the night light main body along the length direction so as to enable a part of the pins, which is exposed out of the night light main body, to be contained within the anti-shock device. When plugging the pins into a socket, the anti-shock device abuts the socket and is retracted toward the night light main body to enable the part of the pins to be exposed and plugged into the socket. When the anti-shock device is retracted toward the night light main body, the elastic resetting member generates an elastic resetting force.