Battery Pack Heat Sink Vortex Flow Cooling
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Solution Overview
Problem
Electric vehicle battery packs require effective cooling methods to maintain efficiency, especially in compact designs, where existing cooling technologies struggle to achieve high heat exchange efficiency and are complex to manufacture and maintain.
Innovation Solution
A battery pack design incorporating heat sinks with vortex-forming parts to enhance cooling water flow, formed by pressing or stamping metal plates, which guide cooling water through main and connection paths, increasing heat exchange efficiency and simplifying manufacturing and maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional cooling methods are used in compact battery packs, then the structure is simpler, but heat exchange efficiency is insufficient
Solution Approach 1:
The patent introduces vortex forming parts with curved surfaces into the cooling water flow paths. These curved structures generate vortex flow patterns that enhance heat transfer efficiency between the cooling water and battery modules, resolving the contradiction by improving thermal performance through flow pattern modification rather than increasing structural complexity
Solution Approach 2:
The patent modifies flow parameters by introducing vortex forming parts that change the flow velocity distribution and flow direction. This transforms the cooling water flow from simple linear motion to rotational vortex motion, significantly improving heat exchange efficiency without requiring a more complex cooling system structure
2Temperature
If complex cooling technologies are used to improve heat exchange efficiency, then cooling performance increases, but manufacturing and maintenance become more difficult
Solution Approach 1:
The vortex forming parts are integrated directly into the heat sink structure, merging the cooling function with the thermal management function. This integration eliminates the need for separate complex cooling components, making the system easier to manufacture while maintaining enhanced cooling performance
Solution Approach 2:
The heat sink structure serves multiple functions: it provides thermal conduction paths, guides cooling water flow, and generates vortex flow patterns simultaneously. This multi-functionality reduces the number of separate components needed, simplifying manufacturing and maintenance while achieving superior heat exchange efficiency
3Weight of moving object
If compact battery pack design is implemented to reduce vehicle weight and size, then vehicle efficiency improves, but cooling effectiveness becomes more difficult to achieve
Solution Approach 1:
The vortex forming parts create rotational flow patterns that enhance heat transfer coefficients within the compact heat sink structure. This allows effective cooling in a reduced volume, enabling compact battery pack design without sacrificing cooling effectiveness
Solution Approach 2:
The patent utilizes hydraulic principles by optimizing cooling water flow paths and velocity distributions through vortex formation. This enhances heat transfer efficiency per unit volume, allowing compact design while maintaining adequate cooling performance
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 consistently changes flow direction and velocity of cooling water, increasing heat exchange efficiency, simplifies the structure for easier manufacturing and repair, and allows for flexible design adaptations based on vehicle needs, while facilitating rapid cooling and improved energy efficiency.
Implementation Method 1
heat sinks configured to absorb thermal energy generated from the cell modules
Implementation Method 2
vortex forming parts disposed in the heat sinks to form vortexes
Data Source
AI summary
The present invention relates to a battery pack. A battery pack according to an embodiment of the present invention includes: a cell module including a cell for generating electric energy; a heat sink in which cooling water for absorbing heat energy generated in the cell module flows; and a vortex flow forming unit disposed in the heat sink to form a vortex flow.