Single-Key Safety Device for MCC Drawer Connectors
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing safety devices for MCC cabinets require two keys for actuation and are prone to malfunction due to the complexity of components, posing risks during operation and maintenance.
Innovation Solution
A safety device using an assembly of interconnected thin laminar plates and a gear mechanism that allows for secure actuation and disconnection of electrical connectors with a single key, ensuring sequential operation and minimizing component failure risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a safety device uses two keys for actuation, then the locking and actuation function is achieved, but the device complexity increases and the risk of malfunction increases
Solution Approach 1:
The patent combines multiple functions (locking, actuation, and safety verification) into a single integrated safety device mechanism. The two keys are replaced by one unified actuation system that performs all necessary safety checks and operational functions through a single operational sequence, thereby reducing component complexity while maintaining reliability.
Solution Approach 2:
The single-key safety device is designed to perform multiple functions: it locks the drawer, verifies safety conditions, and actuates the electrical connectors all through one key operation. This multi-functional design eliminates the need for separate locking and actuation mechanisms, reducing the overall device complexity while ensuring comprehensive safety control.
2Ease of operation
If a safety device uses multiple components, then the locking and actuation function is achieved, but the ease of operation decreases and operator safety is compromised
Solution Approach 1:
By merging the locking and actuation functions into a single integrated mechanism operated by one key, the patent simplifies the operator's task while maintaining safety. The unified design ensures that safety conditions are verified and locked before actuation occurs, eliminating the need for operators to manage multiple separate components and reducing the risk of operational errors.
Solution Approach 2:
The safety device automatically verifies safety conditions and performs locking/actuation sequences without requiring manual intervention for each step. The single key operation triggers a self-contained safety verification process that automatically ensures all conditions are met before allowing actuation, thereby maintaining high operator safety while improving ease of operation.
3Ease of operation
If the actuation process is simplified, then the ease of operation improves, but the manufacturing precision requirements increase
Solution Approach 1:
The patent employs thin laminar plates with precisely engineered conformations that flex slightly to accommodate manufacturing tolerances. These thin film structures are designed with specific geometric features that guide the actuation movement while compensating for minor variations in manufacturing, thereby maintaining ease of operation without requiring extremely tight manufacturing precision.
Solution Approach 2:
The laminar plates feature asymmetric conformations with specific geometric profiles that guide the actuation sequence. This asymmetric design creates a natural mechanical guidance system that ensures proper alignment and movement during operation, reducing the need for high-precision manufacturing while maintaining smooth and intuitive operation.
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
the present invention relates to a safety device 1 notably developed to promote more security and better efficiency in its use, i.e., to operate in the locking and actuation of electrical connectors positioned in extractable drawers 4 for MCC cabinets 16, thereby setting a safety device capable of connecting or disconnecting the internal connectors, both principal and test connector, provided in the extractable drawer 4 for MCC cabinet 16, said procedure is executed mechanically through an assembly of elements that interconnect two thin laminar plates 5 and 5A, these in turn, interconnected to each other, positioned inferiorly and of conformations corresponding to promote a perfect fit, being that the actuation is performed externally with the door closed, from the actuation of the actuation key 2 which actuates a pendulous element that moves a gear assembly 6 suitably arranged in the interior of said extractable drawer 4 for MCC cabinet 16, the gears 6B, 6C, connected to two lower thin laminar plates 5 and 5A, which move and actuate the test connector and subsequently the main connectors towards the corresponding busbars 12, being the laminar plates 5 and 5A interconnected to each other and of corresponding conformations, and said test device is actuated in the first movement of the actuation key 2 of the extractable drawer 4, connecting the test device in the extractable drawer 4 and, by means of sequential movement of the actuation key 2 of the system, the main connectors are actuated.