Electromechanical Locking for Mixed Circuit Breaker Assemblies
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Solution Overview
Problem
Existing locking systems for electrical assemblies are complex, varied, and require multiple locking mechanisms, making them cumbersome and difficult to manage, especially when trying to lock multiple circuit breakers or switches of different sizes, and lack remote operation and centralized control capabilities.
Innovation Solution
A compact electromechanical locking device with an actuator that changes shape to move a locking element between blocking and release positions, allowing for remote operation and centralized control, eliminating the need for complex locking arrangements and enabling the locking of various electrical switches and circuit breakers, including MCCB and MCB, using actuators like shape-memory alloys, lifting magnets, or stepper motors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional locking arrangements (padlock, Bowden cable, bar locking) are used, then locking functionality is achieved, but device complexity and variety increase
Solution Approach 1:
The patent applies universality by creating a single standardized locking device that can lock multiple types of electrical switches and circuit breakers (MCB, MCCB, RCBO, RCD, etc.) regardless of size or type. The locking device includes a standardized locking element that engages with a corresponding locking receptacle, eliminating the need for different locking mechanisms for different switch types.
Solution Approach 2:
The patent merges the locking functionality into a standardized modular device that can be independently installed on any electrical switch. The locking device combines the locking element, actuator, and control interface into an integrated unit that replaces multiple specialized locking arrangements with a single versatile solution.
2Reliability
If multiple specialized locking mechanisms are provided for different switch types, then specific locking requirements are met, but ease of operation and management deteriorates
Solution Approach 1:
The standardized locking device provides a universal interface that works across all electrical switch types. The locking element and receptacle design ensures compatibility while maintaining secure locking for each specific switch type, and all devices can be controlled through a single key or centralized control system.
Solution Approach 2:
The patent introduces an intermediary standardized locking interface between the diverse electrical switches and the locking mechanism. This standardized receptacle acts as a mediator that adapts to different switch types while presenting a uniform interface to the locking device, simplifying operation and management.
3Reliability
If mechanical locking arrangements are used, then locking security is achieved, but adaptability to remote operation and centralized control is limited
Solution Approach 1:
The patent replaces traditional purely mechanical locking arrangements with an electromechanical system. The locking device includes an actuator (electromagnetic, electric, or electronic) that can be controlled remotely or through a centralized control system, while still providing secure mechanical locking through the locking element and receptacle interface.
Solution Approach 2:
The patent introduces dynamic control capabilities to the locking system through actuators that can be activated on demand. The locking state can be changed dynamically through electronic control, allowing for remote operation, centralized management, and integration with building automation systems while maintaining secure mechanical locking when engaged.
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
Simplifies the locking process, reduces accessory complexity, allows for independent construction and operation of locking systems across locations, and enables remote electronic control, reducing the need for mechanical complexity and enhancing security by allowing only authorized access.
Implementation Method 1
the actuator is a shape-memory alloy actuator
Implementation Method 2
the actuator is a lifting magnet
Implementation Method 3
the actuator is a rotary magnet
Implementation Method 4
the actuator is a stepper motor
Data Source
AI summary
A device for locking an assembly includes an actuator having a first shape and a second shape, and a locking element. When the actuator has its first shape it moves the locking element into a blocking position in order to block the assembly, and when the actuator has its second shape, it moves the locking element into a release position in order to release the assembly. A system for locking different assemblies is also provided.