Power Electronics Flood Protection via Float Switches

The patent implements preliminary protective action by installing float switches before flood damage can occur. The float switches are positioned in advance at critical elevations to detect rising water levels and trigger shutdown sequences before water reaches electrical components, thus preserving system reliability while maintaining high charging speed capability.

The patent establishes a feedback mechanism where float switches continuously monitor water levels and provide real-time information to the control system. When water reaches critical levels, the feedback signal automatically triggers shutdown of the charging system, creating a closed-loop protection system that maintains reliability without compromising charging performance.

The patent applies the self-service principle by utilizing the natural buoyancy property of water to automatically activate the float switches. The system requires no external power or complex processing to detect water levels - the physical property of floating objects provides the detection mechanism inherently, simplifying the overall system while maintaining reliable flood protection.

The patent employs hydraulic principles through the use of float switches that respond to water level changes. The buoyant force exerted by water on the float elements provides a simple, reliable mechanical detection system that converts water level information into electrical signals without requiring complex electronic sensors or processing circuits.