Battery Module Exhaust Flow Route Changing Unit
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
High-pressure and high-temperature exhaust gases from battery modules can damage surrounding components when released without proper treatment, as existing solutions do not effectively reduce their pressure and temperature before discharge.
Innovation Solution
A battery module design incorporating a flow route changing unit within the exhaust passage, featuring a series of flat plates with holes that alter the gas flow direction in a zigzag manner, elongating the flow route and facilitating heat exchange to decrease the pressure and temperature of the exhaust gases before release.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If exhaust gas is released directly without treatment, then the release process is simple and fast, but the high pressure and temperature can damage surrounding components
Solution Approach 1:
The exhaust passage is divided into multiple sections with flow route changing units inserted at different positions. Each unit segments the exhaust flow path, creating multiple zigzag sections that collectively elongate the flow route without requiring a completely redesigned exhaust system.
Solution Approach 2:
The flow route changing units utilize the width direction of the exhaust passage to create zigzag flow patterns. By changing the flow direction in the width direction multiple times, the exhaust gas travels a longer path through the same exhaust passage cross-section, effectively elongating the flow route without increasing the overall length of the exhaust passage.
2Temperature
If the flow route is elongated to reduce pressure and temperature, then the exhaust gas is cooled and depressurized effectively, but the exhaust passage becomes more complex
Solution Approach 1:
The flow route changing units are positioned at specific locations within the exhaust passage where space is available in the width direction. These units are strategically placed to create zigzag flow patterns at key points along the exhaust path, maximizing the elongation effect while minimizing overall structural complexity.
Solution Approach 2:
The flow route changing units are designed to dynamically adapt to the exhaust gas flow characteristics. The plate structures create varying flow directions and path lengths depending on the exhaust gas volume and pressure, allowing the system to maintain effective cooling and depressurization across different operating conditions.
3Stress or pressure
If partitions with uneven shape, louver structure, porous structure, or mesh structure are used, then the exhaust gas flow is modified, but the pressure and temperature reduction efficiency is insufficient
Solution Approach 1:
The flow route changing units are positioned upstream in the exhaust passage to pre-condition the exhaust gas flow before it reaches the exhaust outlet. By creating zigzag flow patterns early in the exhaust path, the units establish extended flow routes that continue to cool and depressurize the exhaust gas throughout its travel to the outlet, improving overall pressure and temperature reduction efficiency.
Solution Approach 2:
The multiple flow route changing units are arranged sequentially along the exhaust passage to create continuous zigzag flow patterns throughout the exhaust path. This ensures that the exhaust gas undergoes repeated direction changes and extended flow routing continuously from the cell exhaust outlets to the final exhaust outlet, maintaining effective cooling and depressurization throughout the entire process.
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
This design efficiently reduces the pressure and temperature of high-pressure and high-temperature exhaust gases, preventing damage to nearby components by ensuring the gases are released at a safer condition.
Implementation Method 1
elongates the flow route of the exhaust gas from the upstream side to the downstream side of the exhaust passage by changing the flow direction of the exhaust gas a plurality of times in a zigzag manner
Implementation Method 2
an exhaust passage for releasing, to the outside of the case body, the high-pressure and high-temperature exhaust gas having come from the cells
Implementation Method 3
elongates the flow route of the exhaust gas... facilitating heat exchange to decrease the pressure and temperature of the exhaust gases
Data Source
AI summary
A battery module includes: a case body for storing a plurality of cells each having an exhaust gas valve; an exhaust passage for releasing, to the outside of the case body, the high-pressure and high-temperature exhaust gas having come from the cells; and a flow route changing unit that is disposed in the exhaust passage, has a hole for passing the exhaust gas, and elongates the flow route of the exhaust gas from the upstream side to the downstream side of the exhaust passage by changing the flow direction of the exhaust gas a plurality of times in a zigzag manner along at least one of the width and height directions of the exhaust passage. The flow route changing unit includes a plurality of flat plates each having a hole for passing the exhaust gas.