Mobile Power Supply Grounding With Touch Safety Monitoring
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Solution Overview
Problem
Mobile electric energy supply devices face challenges in ensuring user safety without access to main grounding rails or electrodes, as they often lack a reliable grounding system, posing risks from excessive electrical voltages and currents.
Innovation Solution
A mobile electric energy supply device equipped with a grounding system and a touch safety monitoring device that evaluates electrical measurands between touch points and the ground, ensuring safe operation by simulating user contact with the ground and triggering safety measures if unsafe conditions are detected.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If mobile electric energy supply device is used at installation sites without traditional grounding systems, then the device can be deployed at more locations (increased adaptability), but user safety is compromised due to lack of reliable grounding (increased electrical hazard risk)
Solution Approach 1:
The patent introduces a grounding device as an intermediary element that creates a functional grounding connection between the mobile energy supply device and the installation site ground. This grounding device acts as a mediator that enables safe operation at locations without traditional grounding infrastructure by establishing an artificial grounding path through ground electrodes or grounding plates.
Solution Approach 2:
The patent replaces the traditional mechanical/electrical grounding system (main grounding rails, foundation grounding electrodes) with an alternative grounding device that can be independently deployed. This substitution allows the system to function in locations where the traditional grounding infrastructure is absent, transforming the grounding approach from infrastructure-dependent to self-contained.
2Reliability
If touch safety monitoring device continuously monitors touch points for electrical hazards, then user safety is improved, but device complexity increases
Solution Approach 1:
The touch safety monitoring device performs self-diagnosis and self-monitoring functions, automatically detecting electrical hazards at touch points without requiring external monitoring systems. The device monitors its own operational safety status and can autonomously identify dangerous conditions, reducing the need for complex external safety infrastructure.
Solution Approach 2:
The monitoring device implements continuous feedback by constantly measuring electrical parameters at touch points and comparing them against safety thresholds. When hazardous conditions are detected, the system provides immediate feedback through alarms or shutdown mechanisms, creating a closed-loop safety system that actively maintains user protection.
Data Source
AI summary
The invention relates to a mobile electric energy supply device, comprisingat least one energy supply connector for drawing energy from the energy supply device,a ground grounding device adapted to cooperate with a ground of the installation site of the energy supply device to provide grounding for the energy supply device, anda touch safety monitoring device adapted to monitor at least one touch point disposed on or electrically connected to the energy supply device for touch safety.