Segmented Terminal Box with Spring-Leaf Socket for Safe Calibration
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Solution Overview
Problem
Conventional joint wiring terminal boxes pose safety hazards and inefficiencies during calibration processes, as they require manual handling of exposed metallic terminals, leading to potential misoperations and safety risks.
Innovation Solution
A combined-type intelligent terminal wiring device with a box-shaped structure featuring insulated terminals and a spring-leaf structure in the socket, allowing for safe and efficient connection and calibration without exposing terminals, using a plug device with a safety shield for secure operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual handling of exposed metallic terminals is used for calibration, then the calibration process can be performed, but safety hazards and misoperations occur
Solution Approach 1:
The terminal box is segmented into multiple isolated terminal chambers, each containing individual terminals. This segmentation prevents exposure of all terminals simultaneously and allows controlled access to specific terminals during calibration operations, thereby maintaining safety while enabling operation.
Solution Approach 2:
A calibration plug device is introduced as an intermediary tool between the operator and the terminals. The plug contains corresponding terminals that connect to the measurement secondary circuit, allowing calibration operations to be performed without direct manual handling of the exposed metallic terminals in the terminal box.
2Adaptability or versatility
If metallic terminals are exposed for wiring changes, then wiring flexibility is improved, but safety hazards increase
Solution Approach 1:
The terminal box is divided into multiple isolated terminal chambers with individual access openings. Each chamber contains specific terminals that can be accessed independently through dedicated openings, allowing wiring changes to be performed on specific terminals without exposing the entire terminal set, thus maintaining safety while preserving wiring flexibility.
Solution Approach 2:
The terminal box incorporates movable covers or doors for each terminal chamber that can be opened only when needed for specific wiring operations. This dynamic access control allows terminals to be exposed only temporarily and only when required, maintaining safety during non-operational states while enabling wiring flexibility during operations.
3Device complexity
If conventional joint wiring terminal box is used, then the structure is simple, but terminal exposure requires manual switching which reduces work efficiency
Solution Approach 1:
The terminal box is equipped with automatic terminal identification and indication mechanisms that guide operators to the correct terminals for calibration or wiring operations. This self-service feature eliminates the need for manual trial-and-error switching of terminals, significantly improving work efficiency while maintaining a relatively simple overall structure.
Solution Approach 2:
The terminal box incorporates pre-configured terminal arrangements and pre-marked identification systems that prepare the terminal layout in advance for common calibration and wiring operations. This preliminary preparation allows operators to quickly locate and connect to the correct terminals without time-consuming manual switching, improving productivity while keeping the structure simple.
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 ensures operational safety and efficiency by allowing real-time calibration without exposing terminals, preventing electricity theft and reducing the risk of accidents, while simplifying the calibration process through a closed structure and unique connection method.
Implementation Method 1
an interior of each terminal of the combined-type socket has a spring-leaf structure, and each spring leaf includes an upper spring leaf and a lower spring leaf
Data Source
AI summary
A combined-type intelligent terminal wiring device and a plug device are provided. The wiring device includes a top wiring terminal board, a bottom wiring terminal board and a combined-type socket. An interior of each terminal of the combined-type socket has a spring-leaf structure, and each spring leaf includes an upper spring leaf and a lower spring leaf which are conductively connected via a contact surface. The top wiring terminal board has one end configured to connect the upper spring leaf, and the bottom wiring terminal board has one end configured to connect the lower spring leaf. The plug device includes a plug and a wiring terminal, the plug is located at a front end of the plug device and is a conductive metallic sheet, and the wiring terminal is located at a rear end of the plug device and has one end connected to the conductive metallic sheet.