Battery Pack Cooling Pipe Layout for Uniform Cell Temperature
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Solution Overview
Problem
Existing battery packs in high-performance electric vehicles face challenges in effectively cooling batteries due to varying cooling efficiency based on the battery's position, leading to inconsistent cooling performance.
Innovation Solution
A cooling pipe design with a main pipe region and branching pipe regions, including a merging pipe region, that ensures uniform cooling by directing fluid flow through multiple paths and orifices to stabilize temperature distribution across the battery pack.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a relatively large amount of heat is generated in the battery pack, then high-performance electric vehicle operation is enabled, but effective cooling becomes impossible
Solution Approach 1:
The cooling pipe is divided into multiple branch pipe regions that are spaced apart in the extension direction of the main pipe region, allowing segmented cooling of different battery portions. Each branch pipe region receives cooling fluid from the main pipe and discharges it after cooling, creating multiple cooling zones throughout the battery pack.
Solution Approach 2:
Different regions of the battery pack receive customized cooling through the branch pipe regions positioned at specific locations. The cooling fluid flow rate and distribution can be optimized for each local area, with branch pipes strategically placed to address hot spots in high-performance vehicles generating substantial heat.
2Temperature
If cooling fluid flows through the battery pack, then cooling effect is achieved, but uniform cooling across all battery positions is not achieved
Solution Approach 1:
The cooling system is segmented into multiple branch pipe regions spaced apart along the main pipe extension direction. This segmentation ensures that cooling fluid is distributed to multiple locations simultaneously, achieving more uniform temperature reduction across the entire battery pack rather than concentrated cooling in one area.
Solution Approach 2:
The branch pipe regions are arranged in spatial distribution along the extension direction of the main pipe, creating a multi-dimensional cooling network. This spatial arrangement ensures comprehensive coverage of the battery pack volume, addressing temperature variations in different positions through three-dimensional fluid distribution.
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 reduces variations in cooling efficiency across the battery pack, ensuring consistent temperature regulation and enhanced cooling performance by optimizing fluid flow paths and branch connections.
Implementation Method 1
a cooling pipe, which includes a flow path through which a cooling fluid for cooling a battery in a battery pack flows
Implementation Method 2
the fluid, which is introduced through the inlet region and flows in the main pipe region, is introduced into the branch pipe regions
Data Source
AI summary
A cooling pipe includes an inlet region, a pipe region including flow paths fluidically-communicating with the inlet region, and an outlet region configured to fluidically-communicate with the flow paths, in which the pipe region includes a main pipe region extending from the inlet region to the outlet region, and a plurality of branch pipe regions branching off from the main pipe region, and in which the main pipe region and the branch pipe regions are configured so that the fluid, which is introduced through the inlet region and flows in the main pipe region, is introduced into the branch pipe regions through first end portions of the branch pipe regions, and the fluid, which flows in the branch pipe regions, is discharged from the branch pipe regions through a second end portion of the branch pipe region.