Self-Powered Fixed-Temperature Fire Detection Without Wiring
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Solution Overview
Problem
Conventional fire detectors require electrical power for operation, which complicates installation, increases costs due to the need for wiring and rectification, and may fail due to power line damage or battery self-discharge, limiting their reliability and durability.
Innovation Solution
A self-powered fixed temperature fire detection system using a shape memory alloy spring to detect temperature changes, eliminating the need for batteries or wiring, and incorporating a dust and water-resistant design for enhanced performance and ease of installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If power line is used to supply electricity to fire detector, then power supply reliability is improved, but installation complexity and cost increase due to wiring requirements
Solution Approach 1:
The patent extracts the power supply function from external sources (power lines or batteries) and eliminates the need for these external power sources. The fire detector is designed to operate without any power line connection or battery installation, removing the complexity associated with wiring and power management components while maintaining detection functionality.
Solution Approach 2:
The fire detector serves itself by eliminating the need for external power supply infrastructure. The device is designed to function independently without requiring power lines, rectifiers, charging circuits, or battery replacements, thereby simplifying installation and maintenance while ensuring continuous operation.
2Ease of operation
If primary battery is used for power, then installation flexibility is improved, but device reliability deteriorates due to battery self-discharge requiring periodic replacement
Solution Approach 1:
The patent removes the battery component entirely from the fire detector system. By eliminating the primary battery, the device achieves both installation flexibility (no wiring or battery installation needed) and reliability (no battery self-discharge or replacement required), as the detector is designed to operate without any consumable power sources.
Solution Approach 2:
The fire detector is designed to be completely self-sufficient without relying on batteries that require periodic replacement. The system eliminates the maintenance burden of battery monitoring and replacement while maintaining continuous operational readiness through its unique power-free architecture.
3Adaptability or versatility
If rectifier and charging circuit are added for secondary battery, then power supply adaptability is improved, but device cost and complexity increase
Solution Approach 1:
The patent extracts and removes all power conversion and management components (rectifier, charging circuit, voltage regulator) from the fire detector. The device is designed to operate directly without these intermediate components, eliminating the complexity and cost associated with power supply adaptation while maintaining functionality through its power-free design.
Solution Approach 2:
The fire detector serves itself by eliminating the need for complex power management infrastructure. The device operates without requiring rectification, charging, or voltage regulation circuits, thereby reducing component count, simplifying the circuit board design, and lowering overall system cost while maintaining operational capability.
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 allows for convenient, semi-permanent installation of fire detectors without power sources, ensuring quick notification of fire occurrences and maximizing dust and water resistance, thereby minimizing damage and extending product performance.
Implementation Method 1
a shape memory alloy spring which is extended and compressed by shape memory displacement according to high temperature heat generated by fire occurrence
Data Source
AI summary
The present invention relates to a system for wirelessly transmitting and receiving self- powered power-free fixed temperature type fire detection, the system comprising: a self-powered fixed temperature type fire detector operating by the heat generated by fire occurrence and self- powered; a receiver for receiving and monitoring a fire occurrence signal through wireless communication according to the operation of the self-powered fixed temperature type fire detector; and an application part for allowing the signal received from the receiver to be notified in real time, wherein the fire detector is wirelessly installed, self-powered, and maximized in dust and water-resistant efficiencies.