Battery Cooling Device Branching Flow Path Design
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing battery cooling systems suffer from uneven cooling distribution, leading to non-uniform temperature regulation across battery modules due to variations in cooling water quantity and pressure, which can result in thermal runaway.
Innovation Solution
A battery cooling device with a configuration that includes an inlet port, discharge ports, and a communication path with branching flow paths to evenly distribute cooling liquid across cells, utilizing branching and return flow paths to minimize variations in flow path lengths and quantities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple ejection nozzles branch from one pipe, then the cooling water can be supplied to multiple battery modules, but the supplied quantity and pressure become smaller on the downstream side, resulting in uneven cooling
Solution Approach 1:
The cooling system is divided into multiple independent single-nozzle units, each equipped with its own pump. This segmentation ensures that each battery module receives adequate cooling water quantity and pressure independently, eliminating the downstream pressure loss problem while maintaining comprehensive cooling coverage across all modules.
2Adaptability or versatility
If multiple ejection nozzles branch from one pipe, then the cooling system can cover multiple battery modules, but the pressure of cooling water becomes lower on the downstream side, resulting in uneven cooling
Solution Approach 1:
The system segments the cooling delivery into independent single-nozzle units with individual pumps. Each unit maintains high cooling water pressure independently at its nozzle, ensuring uniform pressure distribution across all battery modules while achieving comprehensive cooling coverage through the distributed architecture.
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 solution ensures uniform cooling of battery modules by reducing variations in cooling liquid distribution, preventing thermal imbalances and enhancing safety by maintaining consistent temperature across the battery pack.
Implementation Method 1
cooling liquid supplied from a pump is introduced into the inlet port
Implementation Method 2
discharge ports discharging, on an upper side of each of a plurality of the cells, the cooling liquid introduced into the inlet port
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A battery cooling device includes: a battery case with an accommodation portion accommodating a battery module; an inlet port that is provided at a central portion in a first direction in the battery case and on one end side in a second direction and into which cooling liquid supplied from a pump is introduced; discharge ports discharging, on an upper side of each of a plurality of the cells, the cooling liquid introduced into the inlet port; and a communication path causing the inlet port to communicate with the discharge ports. The communication path includes a branching flow path including first and second branching flow paths. The first branching flow path communicates with the inlet port and branches to one end side of the first direction. The second branching flow path communicates with the inlet port and branches to another end side of the first direction.