Intelligent Fuseless Switch Vibration Detection Module
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Solution Overview
Problem
Existing circuit breakers are prone to failure during natural disasters like earthquakes, causing fires due to loose wires, and are not easily maintainable when damaged by surge currents, as they often require replacement of the entire device rather than just the faulty module.
Innovation Solution
An intelligent fuseless switch with a vibration detection module that automatically disconnects the circuit when excessive vibration is detected, using an electromagnetic trip device and a replaceable module design to prevent power transmission and allow for easy maintenance without replacing the entire circuit breaker.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a specially designed circuit breaker with vibration detection function is provided at the front, then the switch can be pushed to the off position during earthquakes, but the device cannot be installed in the existing main switch box and the door cannot be closed
Solution Approach 1:
The device is divided into two independent parts: a base that installs in the circuit breaker box and a vibration detection module that attaches to the circuit breaker front. This segmentation allows the base to fit in existing boxes while the module provides the earthquake detection function externally.
Solution Approach 2:
The vibration detection module is designed to attach to the front of the circuit breaker, with the base nested inside the circuit breaker box. The module can be installed on existing circuit breakers without requiring modifications to the box structure.
2Reliability
If a specially designed circuit breaker is installed to detect vibration and push the switch off, then automatic power off during earthquakes is achieved, but the entire device must be replaced when damaged by surge currents
Solution Approach 1:
The system separates the vibration detection module from the circuit breaker body. When surge currents damage the vibration detection module, only this module needs to be replaced rather than the entire circuit breaker, reducing maintenance costs.
Solution Approach 2:
The vibration detection module is designed as a replaceable, relatively inexpensive component compared to the entire circuit breaker. When damaged, users can replace just the module rather than discarding the whole device.
3Reliability
If a vibration detection module is added to detect earthquake vibrations, then automatic circuit disconnection is achieved, but the device complexity increases
Solution Approach 1:
The vibration detection module is separated from the circuit breaker body, containing all detection and control components in one external unit. This keeps the main circuit breaker structure simple while adding the detection function through a self-contained module.
Solution Approach 2:
The base unit serves multiple functions: it provides the mounting structure for the vibration detection module, maintains electrical connections, and houses the electromagnetic trip device. This multi-functionality reduces overall system 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 solution effectively prevents fires during earthquakes by automatically disconnecting power and allows for continuous operation with reduced maintenance costs by enabling replacement of only the damaged vibration detection module, ensuring safety and reliability.
Implementation Method 1
a vibration detection module, insertedly connected to the base; When the vibration detection module detects that vibration intensity is higher than a preset value
Implementation Method 2
An electromagnetic trip device is connected to the moving contactor and configured to drive the moving contactor to move to disconnect the first circuit connection end from the second circuit connection end
Data Source
AI summary
An intelligent fuseless switch includes a moving contactor, a switch, a base, and a vibration detection module. When the vibration detection module detects that vibration intensity is higher than a preset value, the electromagnetic trip device is triggered by the base to push the moving contactor to open a circuit. The power cannot be introduced into the house. This automatic power-off mode has an active protection effect. After the vibration detection module is installed, if it needs to be repaired, it can be directly replaced without removing the circuit breaker, thereby reducing the difficulty of maintenance greatly.