Battery Heat Exchange Assembly for Uniform Coolant Distribution
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Solution Overview
Problem
Existing battery systems face challenges in maintaining uniform temperature of the heat exchange fluid, leading to uneven heat transfer across battery cells, which can affect performance and lifespan.
Innovation Solution
A heat exchange assembly with a heat exchange element featuring multiple channels and openings for fluid flow, combined with a fluid distribution member for improved temperature uniformity and thermal performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a heat exchange fluid is used for heat exchange between battery cells, then heat transfer efficiency is improved, but temperature uniformity of the heat exchange fluid deteriorates
Solution Approach 1:
The heat exchange element is divided into multiple channels (first channels and second channels) that are arranged in parallel. The fluid distribution member divides the incoming fluid into multiple streams that flow through different channels simultaneously, ensuring that heat exchange occurs across multiple pathways rather than a single path, which improves both efficiency and temperature uniformity
Solution Approach 2:
Different regions of the heat exchange element are designed with different channel configurations. The first channels and second channels are positioned to contact different battery cells or different regions of the same battery cells, allowing localized heat exchange optimization while maintaining overall temperature uniformity through the distributed channel network
2Reliability
If temperature of heat exchange fluid changes during flow, then heat exchange function is improved, but uniformity of heat exchange across battery cells deteriorates
Solution Approach 1:
The fluid distribution member segments the fluid flow into multiple parallel channels, creating multiple independent heat exchange pathways. This segmentation ensures that temperature changes in one channel do not directly affect other channels, maintaining uniform heat exchange across all battery cells while still achieving effective heat transfer function
Solution Approach 2:
The heat exchange element is designed with channels that maintain equivalent flow conditions and heat exchange potential across different pathways. By arranging first channels and second channels in parallel with similar geometric characteristics, the system creates equipotential flow paths that ensure uniform heat exchange performance across all battery cells
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 proposed solution ensures a more uniform temperature distribution of the heat exchange fluid, enhancing thermal performance and maintaining even heat transfer across battery cells, thereby improving system efficiency and longevity.
Implementation Method 1
A system for heat exchange transfer normally employs a heat exchange fluid for heat exchange between the battery cells and the heat exchange fluid
Implementation Method 2
The temperature of the heat exchange fluid normally increases since the battery cells give away heat to the heat exchange fluid
Data Source
AI summary
A heat exchange assembly for a battery system is provided. A heat exchange element extends along a first direction with at least one first channel and at least one second channel provided between the first and second surfaces, each extending along the first direction. At least one first opening is provided on the first surface, and at least one second opening is provided on the second surface. A fluid distribution member is mounted on the heat exchange element, comprising an inlet port for distributing fluid and an outlet port for distributing fluid out.