Outlet Device with LED Connection Error Indication
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Solution Overview
Problem
Existing power outlet testers require users to disconnect the load and do not proactively alert to potential wiring connection issues, and often use costly neon bulbs.
Innovation Solution
An electronic outlet device with a connection circuit and indicator interface that uses LED sets and switching circuits to visually indicate correct connections or errors between the power source and load, eliminating the need for external testers and reducing costs by using LEDs instead of neon bulbs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional power outlet testers are used, then connection errors can be detected, but the device complexity increases and requires disconnecting the load
Solution Approach 1:
The patent combines the testing function and indicator functions into a single integrated outlet device. The connection circuit is integrated within the outlet itself, eliminating the need for separate external testers. Multiple indicator circuits are merged into one unified device that can detect and display various connection error types simultaneously.
Solution Approach 2:
The outlet device performs multiple functions: it serves as both a power connection point and a diagnostic testing device. The single device can detect open hot, open neutral, open ground, and reversed polarity conditions, providing universal connection verification without requiring multiple separate tools.
2Reliability
If neon bulbs are used in testers, then connection errors can be indicated, but the cost of the device increases
Solution Approach 1:
The patent replaces expensive neon bulbs with inexpensive LED indicators. LEDs are significantly cheaper to manufacture and have longer lifespans. The indicator circuits use standard electronic components like resistors, capacitors, and transistors that are mass-produced and low-cost, making the overall device more economical to manufacture while maintaining reliable error indication.
3Reliability
If external testers are used to detect connection errors, then wiring issues can be identified, but the ease of operation decreases due to required disconnection
Solution Approach 1:
The outlet device performs self-diagnosis by automatically detecting connection errors through its integrated connection circuit. The device monitors its own terminal connections (hot, neutral, ground) and provides immediate visual feedback through indicator circuits, eliminating the need for users to disconnect loads or use separate testing equipment.
Solution Approach 2:
The outlet device performs connection verification before the load is connected and used. By continuously monitoring the terminal connections, the device can alert users to wiring errors in advance, preventing potential damage or safety issues before they occur.
4Productivity
If multiple indicator circuits are integrated into the outlet device, then real-time connection monitoring is achieved, but the device complexity increases
Solution Approach 1:
The patent divides the monitoring function into separate indicator circuits for different connection conditions (open hot, open neutral, open ground, reversed polarity). Each indicator circuit independently monitors a specific condition and provides dedicated visual feedback, making the complex monitoring function manageable and maintainable through modular segmentation.
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 device provides a user-friendly, cost-effective solution for ensuring correct power connections without disconnecting the load, offering real-time visual feedback on connection errors and reducing the need for additional testing equipment.
Implementation Method 1
a first light-emitting diode (LED) set that includes one or more LEDs, as well as a first switching circuit configured to cause the one or more LEDs in the first LED set to turn on and off
Data Source
AI summary
An electrical outlet device includes a connection circuit having neutral, hot and ground terminals that are configured to be connected to a corresponding line of a power source. The device also includes an interface panel with a receptacle configured to receive a load. An indicator interface device is attached to the interface panel. The indicator interface device includes at least three sets of light-emitting diodes (LEDs), and at least three switching circuits that are configured to turn the LED sets on and off. At least one combination of on/off states of the first, second and third LED sets indicates a correct connection or a unique type of error in a connection between the power source and the connection circuit.