Battery Pack Thermal Management via Segmented Fluid Control
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Solution Overview
Problem
Conventional battery pack temperature control systems cannot perform independent temperature control for each battery pack, leading to inefficiencies and increased complexity due to the use of a single fluid device for multiple packs.
Innovation Solution
Each battery pack is equipped with a fluid device and a control device that obtains data on bus bars and battery cells to independently control temperature, allowing for standalone temperature management within a predetermined range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single fluid device is used for multiple battery packs, then the number of components is reduced, but independent temperature control for each battery pack becomes impossible
Solution Approach 1:
The patent divides the temperature control system into independent modules, with each battery pack having its own fluid device and control device. This segmentation enables each battery pack to be controlled independently while maintaining a relatively simple overall structure through modular design
2Ease of manufacture
If a fluid device is provided commonly to multiple battery packs, then manufacturing cost is reduced, but temperature control efficiency decreases
Solution Approach 1:
Each battery pack is equipped with its own fluid device and control device, enabling independent temperature control that improves control efficiency and response time, while the modular design keeps manufacturing costs manageable through standardization
3Device complexity
If multiple battery packs share a common temperature control system, then the system structure is simplified, but assembly and disassembly processes become more complex
Solution Approach 1:
The temperature control system is segmented into independent modules for each battery pack, making each module self-contained and easier to assemble and disassemble independently, while the overall system structure remains organized through modular architecture
Solution Approach 2:
The fluid device and control device are extracted as independent components for each battery pack, allowing them to be assembled and disassembled separately from other battery packs, simplifying the overall assembly and disassembly processes
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 solution enables independent temperature control for each battery pack, simplifying assembly and disassembly processes while reducing the number of components and manufacturing steps, thus improving handling and cost efficiency.
Implementation Method 1
a fluid device that passes a heat transfer medium for exchanging heat with the bus bars or the battery cells
Implementation Method 2
a fluid device that passes a heat transfer medium for exchanging heat with the bus bars or the battery cells
Data Source
AI summary
The battery pack includes battery cells, bus bars provided for electrical connection among the battery cells, a fluid device that passes a heat transfer medium for exchanging heat with the bus bars or the battery cells, and a control device that obtains data on the bus bars or the battery cells and controls the fluid device based on the obtained data.