Battery Housing Airflow Control for Rapid Cell Temperature Regulation
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Solution Overview
Problem
Existing battery systems for electric vehicles lack a simple and efficient method to regulate the temperature of battery units, which is crucial for efficient operation and to prevent damage.
Innovation Solution
A battery system design that utilizes air as a temperature control medium, incorporating an air inlet and outlet region with shut-off devices, an air conveying device, and a heating device to manage air flow and temperature, powered by the battery unit itself, allowing for rapid temperature adjustment and regulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If complex temperature control systems with multiple components are used, then temperature regulation capability is improved, but device complexity increases
Solution Approach 1:
The patent extracts the temperature control medium (air) from complex liquid cooling systems and uses it directly in the housing cavity. This eliminates the need for heat exchangers, pumps, and complex piping, achieving temperature control with minimal components while maintaining effectiveness
Solution Approach 2:
The air serving as temperature control medium performs multiple functions: it cools/heats battery cells, provides atmospheric pressure to suppress gas expansion, and can be used to detect cell failures. This multi-functionality reduces the need for separate systems for each function
2Temperature
If additional energy sources are added for temperature control, then temperature regulation capability is improved, but device complexity increases
Solution Approach 1:
The battery system uses its own internal resources for temperature control - the battery cells provide heat when cold and can power the fan for air circulation. The system serves itself without requiring external energy sources or additional power supply components
3Device complexity
If air is used as temperature control medium, then device complexity is reduced, but temperature control precision may worsen
Solution Approach 1:
The patent implements local quality by positioning battery cells at different distances from air inlet openings, creating zones with different air flow rates and cooling intensities. This allows precise temperature control for individual cells or groups of cells based on their specific thermal requirements
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
Enables simple and efficient temperature control of battery units, reducing the need for additional energy sources and providing rapid response to temperature changes, ensuring optimal operating conditions.
Implementation Method 1
a heating device (28) for heating air flowing through the battery system housing (12)
Implementation Method 2
an air conveying device (24) for conveying air through the battery system housing (12)
Implementation Method 3
The air flowing in the channel can absorb heat emitted by the battery and dissipate it from the area of the housing
Data Source
Figure 1~2
Figure 3
AI summary
A battery system, in particular for a vehicle, comprises a battery system housing (12), wherein the battery system housing (12) has an air inlet area (18) and an air outlet area (22) for air flowing through the battery system housing (14), and at least one battery unit (14), wherein the at least one battery unit (14) is accommodated in the battery system housing (12) so that air flowing through the battery system housing (12) can flow around it.