Electrified Area Access Locking for Energy Storage Shock Prevention
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Solution Overview
Problem
High-voltage electrified places, such as DC directly-suspended energy storage systems, pose a risk of electric shock due to electrified sub-modules and potential ground short-circuiting faults, necessitating improved safety measures for maintenance and operation.
Innovation Solution
A safety protection apparatus comprising a detection element to sense electrical signals, an alarm apparatus to indicate the current state, and a door lock device to control access, ensuring safe entry and exit by determining the accessibility of the area based on electrical signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If DC directly-suspended energy storage systems are implemented, then energy storage capacity and system functionality are improved, but the risk of electric shock to personnel increases due to high-voltage electrified components
Solution Approach 1:
The system performs preliminary detection of the electrified state before allowing access. The detection element continuously monitors whether the area is electrified, and the door lock device is controlled in advance to lock or unlock based on the detected state, preventing personnel from entering dangerous areas before they can be exposed to electric shock
Solution Approach 2:
The patent introduces an intermediary safety protection apparatus between the electrified system and personnel. This apparatus includes detection elements that sense the electrified state and a door lock device that mediates access control, acting as a buffer that prevents direct contact between personnel and high-voltage components
2Object-affected harmful factors
If real-time detection and door locking control are implemented, then personnel safety is improved, but device complexity increases
Solution Approach 1:
The patent combines multiple functions into an integrated safety protection apparatus. The detection element, control device, and door lock device are merged into a unified system where the detection element monitors the electrified state, the control device processes the detection signal, and the door lock device executes access control, reducing overall system complexity through functional integration
Solution Approach 2:
The safety protection apparatus operates autonomously without requiring manual intervention. The detection element automatically detects the electrified state, the control device automatically processes the detection signal to determine the current state, and the door lock device automatically locks or unlocks based on the determined state, making the system self-regulating and reducing operational complexity
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 system effectively identifies safe entry conditions, preventing accidental electric shocks by locking access during unsafe states and alerting personnel to potential dangers, thereby enhancing safety in high-voltage environments.
Implementation Method 1
a detection element configured to detect an electrical signal of an area to be detected and transmit the electrical signal to a control device
Data Source
AI summary
A safety protection apparatus comprises: a detection element configured to detect an electrical signal of an area to be detected and transmit the electrical signal to a control device, so that the control device determines the current state of the area to be detected according to the electrical signal; an alarm apparatus configured to acquire a prompt instruction from the control device to prompt the current state of the area to be detected according to the prompt instruction; and a door lock device configured to acquire an opening and closing instruction from the control device to lock or open an entrance/exit of the area to be detected according to the opening and closing instruction, wherein the opening and closing instruction is determined according to the current state.