Immersion Battery Cooling Vortex Generator Heat Transfer
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Solution Overview
Problem
Conventional battery cooling systems for electric vehicles suffer from limited contact area between the battery pack and cooling block, leading to inefficient heat dissipation and temperature deviations within battery cells, which reduces charging and discharging efficiency.
Innovation Solution
An immersion type battery cooling system with a cooling block that incorporates a vortex generator on its inner wall to enhance heat transfer by creating a direct contact area between the cooling fluid and the battery, improving flow characteristics and heat absorption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a conventional cooling block is used with limited contact area, then the structure is simple, but the cooling efficiency is insufficient
Solution Approach 1:
The cooling block is segmented into multiple functional zones including vortex generators, protrusions, and recesses that create distinct flow paths. This segmentation transforms the simple cooling block into a multi-functional structure that enhances cooling efficiency through controlled fluid dynamics while maintaining manufacturing feasibility
Solution Approach 2:
The cooling fluid acts as an intermediary medium that is actively manipulated by the vortex generators and flow paths. The fluid mediates heat transfer between the battery and cooling block, and the structural features guide this intermediary to maximize contact and heat absorption efficiency
2Stability of the object's composition
If cooling is performed from the bottom surface only, then the cooling block structure is simple, but temperature deviation within battery cells increases
Solution Approach 1:
Different regions of the cooling block are given different functional qualities: vortex generators in specific zones create rotational flow, protrusions and recesses create turbulence in targeted areas, and flow paths are optimized for specific battery cell regions. This local differentiation ensures uniform temperature distribution across all battery cells while maintaining a relatively simple overall structure
Solution Approach 2:
The cooling approach transitions from single-dimensional bottom surface cooling to multi-dimensional cooling by incorporating vertical flow paths, rotational vortex components, and three-dimensional protrusion-recess structures. This dimensional expansion enables comprehensive heat removal from all battery surfaces, eliminating temperature deviations
3Productivity
If the contact area between battery pack and cooling block is limited, then the manufacturing is simple, but heat dissipation efficiency is poor
Solution Approach 1:
The cooling block incorporates vortex generators, protrusions, and recesses that create a porous-like internal structure with multiple flow paths and increased surface area. This porous configuration dramatically improves heat dissipation efficiency by maximizing cooling fluid contact with battery surfaces while using conventional manufacturing techniques to create the complex internal geometry
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 system achieves improved cooling efficiency by destroying the heat boundary layer and ensuring effective heat absorption, thereby enhancing the battery's thermal management and overall performance.
Implementation Method 1
a vortex generator, formed on an inner wall of the cooling block, configured to protrude towards the battery
Implementation Method 2
The system achieves improved cooling efficiency by destroying the heat boundary layer
Implementation Method 3
the cooling fluid flows between the vortex generator and the battery
Implementation Method 4
the cooling fluid absorbs the heat emitted by the battery module
Data Source
AI summary
An immersion type battery cooling system includes a cooling block configured to accommodate a cooling fluid flowable within the cooling block, and a battery accommodated within the cooling block. The cooling block has a vortex generator, formed on an inner wall of the cooling block, configured to protrude towards the battery.