GFCI Status Indicator with Color-Coded Visual Feedback
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Solution Overview
Problem
GFCI receptacles often miswiring issues are not easily detected, leading to a dangerous condition where AC power is present at outlets without proper ground fault protection, and existing visual indicators cause user confusion regarding the status of the circuit, especially during testing and resetting processes.
Innovation Solution
An electrical wiring device with an optical/visual circuit status indicator physically and visually associated with the RESET and/or TEST activator components, providing clear and user-friendly information on the circuit status through proximity and illumination, guiding users on necessary actions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If visual indicators are provided to show circuit status, then information availability is improved, but user confusion increases due to unclear status during testing and resetting processes
Solution Approach 1:
The patent employs color-coded visual indicators (e.g., red, yellow, green lights) to represent different circuit statuses. This allows users to immediately understand circuit conditions without confusion, as each color clearly signifies a specific state such as fault, testing, or normal operation.
Solution Approach 2:
The patent introduces an intermediary visual indicator system that mediates between the complex circuit operations and the user. This indicator system translates internal circuit states into simple, intuitive visual signals, eliminating direct confusion while maintaining complete information transmission.
2Reliability
If miswiring detection capabilities are enhanced, then safety is improved, but device complexity increases
Solution Approach 1:
The patent implements preliminary detection mechanisms that check for miswiring conditions during installation and before operational use. By detecting miswiring early through integrated sensors and circuit analysis, the system prevents dangerous conditions without requiring complex continuous monitoring throughout operation.
Solution Approach 2:
The patent designs the detection system to serve multiple functions: detecting miswiring, monitoring circuit status, and identifying fault conditions. This multi-functionality reduces overall system complexity by consolidating multiple detection capabilities into a single integrated system rather than requiring separate specialized detectors for each 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 solution effectively informs users of the circuit status, preventing miswiring and ensuring proper operation by clearly indicating when the device needs to be reset or tested, thereby enhancing user safety and reducing confusion.
Implementation Method 1
an optical/visual circuit status or condition indicator
Data Source
AI summary
An electrical control device including an electrical circuit, wherein the electrical circuit has a circuit protection component such as, e.g., a ground fault circuit interrupter (GFCI). The exemplary GFCI includes a TEST circuit activator and a RESET circuit activator, as well as a visual circuit status indicator indicia that is in an active (illuminated) state when the circuit is in a fault condition. The status indicator indicia is visually, physically, ergonomically or otherwise positively informatively associated with the TEST circuit activator and/or the RESET circuit activator. The positive informative association between the indicator indicia and the TEST circuit activator and/or the RESET circuit activator may be made by physical and/or visual boundaries or markings on a cover portion of the device or by integrally incorporating the indicia in the TEST circuit activator and/or the RESET circuit activator. The indicia may be a steady state or a blinking illumination. According to an aspect, a prompting indicator provides a prompting indicia for a user to activate the TEST circuit activator and/or the RESET circuit activator or replace a defective component of the device.