Flame-Proof Portable Power Supply With Aerosol Fire Suppression
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Solution Overview
Problem
Existing portable power supplies face issues with poor fireproof performance, inability to extinguish internal fires, and safety risks due to heat generation and lack of effective heat dissipation, particularly in industrial environments.
Innovation Solution
A flame-proof portable power supply design featuring a metal housing with separate cavities for the battery pack and electrical assembly, an aerosol fire extinguishing device, and a control system that monitors temperature and releases aerosol when necessary to extinguish fires, along with heat dissipation through the metal housing without fans.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a fan is used for heat dissipation in existing portable power supplies, then heat dissipation function is provided, but waterproof performance deteriorates due to unsealed air inlet/outlet positions
Solution Approach 1:
The patent removes the fan component entirely from the portable power supply design. Instead of using active mechanical ventilation, the invention relies on passive heat dissipation through the metal housing walls, eliminating the waterproofing issue caused by fan air inlets and outlets while still providing effective heat management.
Solution Approach 2:
The metal housing serves dual functions: it provides structural protection and simultaneously acts as a heat dissipation component through its inherent thermal conductivity. The housing walls directly conduct heat from internal components to the external environment without requiring additional active cooling mechanisms.
2Device complexity
If the battery pack and electrical assemblies are provided in the same holding cavity, then device structure is simplified, but safety deteriorates as electrical assemblies are easily burned when battery catches fire
Solution Approach 1:
The patent divides the internal space into separate compartments: one holding cavity for the battery pack and another cavity for electrical assemblies. This spatial segmentation prevents fire from the battery pack from directly affecting the electrical assemblies, enhancing safety while maintaining a relatively simple overall device structure.
3Ease of operation
If conventional portable power supplies are used, then portability is achieved, but fireproof performance deteriorates and the ability to extinguish internal fires is lost
Solution Approach 1:
The patent incorporates an aerosol fire extinguishing device that is pre-positioned within the battery pack housing. When fire is detected, the device automatically releases aerosol extinguishing agent in advance to suppress the fire, providing active fire protection without compromising the portable design of the power supply.
Solution Approach 2:
The invention converts the harmful heat generated by the battery pack during charging/discharging into a beneficial feature by using the metal housing's thermal conductivity for passive heat dissipation. Additionally, the potential fire hazard is converted into a controlled scenario where the aerosol device can effectively suppress flames, turning a catastrophic risk into a manageable safety feature.
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 design provides enhanced fireproofing, effective fire extinguishing, and safe heat dissipation, reducing the risk of equipment damage and user safety hazards.
Implementation Method 1
an aerosol fire extinguishing device, the aerosol fire extinguishing device being disposed in the holding cavity and configured to release aerosol in the holding cavity when temperature in the holding cavity reaches a specified temperature value
Implementation Method 2
the battery pack being directly connected to the metal housing
Data Source
AI summary
A flame-proof portable power supply includes a battery pack, an electrical assembly, a metal housing and an aerosol fire extinguishing device. A holding cavity for installing the battery pack or the electrical assembly are formed in the metal housing, the battery pack is electrically connected to the electrical assembly, and the battery pack is directly connected to the metal housing. The aerosol fire extinguishing device is disposed in a holding cavity, and the aerosol fire extinguishing device is configured to release aerosol in the holding cavity when temperature in the holding cavity reaches a specified temperature value.