Heater Leakage Breaker Circuit for Safe Power Reset
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Solution Overview
Problem
Existing electrical leakage breakers in home power distributors and heaters do not effectively prevent electrical shocks and fires, as they only operate when total current exceeds a preset level and may not store leakage state information, leading to potential re-supply hazards.
Innovation Solution
A heater and bidet design incorporating an electrical leakage breaker circuit with a control section that monitors and stores leakage state information, even when power is cut off, to prevent re-operation and ensure user safety by cutting off power when leakage exceeds a preset amount and displaying or notifying the user of power status.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an electrical leakage breaker circuit is installed in a heater, then electrical leakage can be detected and power can be cut off, but when power is reset the heater may re-supply power causing electrocution hazard
Solution Approach 1:
The control section performs a preliminary check of leakage current information before re-supplying power to the heating section. This preliminary action prevents electrocution by verifying that electrical leakage has been resolved before allowing power restoration, thus addressing the hazard of automatic re-supply after power cut-off
Solution Approach 2:
The electrical leakage breaker circuit provides continuous feedback about leakage current status to the control section. This feedback mechanism enables the system to monitor leakage conditions and make informed decisions about power supply, preventing re-supply when leakage persists and thereby eliminating the electrocution risk
2Reliability
If an electrical leakage breaker circuit is installed in a heater, then individual heater leakage can be detected, but the system complexity increases
Solution Approach 1:
The electrical leakage breaker circuit functions are merged with the existing control section of the heater. The control section integrates both the leakage detection capability and the power control functions in a single unit, eliminating the need for separate complex leakage protection devices while achieving individual heater leakage detection
Solution Approach 2:
The control section is designed to perform multiple functions: it controls the heating section operation, monitors leakage current information, decides on power cut-off, and manages power re-supply. This multi-functionality reduces overall system complexity by consolidating what could be separate components into a single universal control unit
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 allows for safe determination and prevention of electrical shocks by storing electrical leakage breaker state information, enabling safe re-operation and reducing the risk of electrical accidents, even when power is reset.
Implementation Method 1
a heating section for receiving power from the power source and converting the received power into heat energy
Data Source
AI summary
A heater includes: a power source for supplying power; a heating section for receiving power from the power source and converting the received power into heat energy; an electrical leakage breaker circuit for cutting off a power transfer from the power source to the heating section; and a control section for receiving leaked current information from the electrical leakage breaker circuit and operating the electrical leakage breaker circuit when the leaked current amount exceeds a preset amount or electrical leakage breaker state information is stored, wherein when the power transfer is cut off, the control section stores the electrical leakage breaker state information.