Tree-Like Cooling Pipe Layout for Uniform Battery Module Cooling
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Solution Overview
Problem
Existing battery systems face challenges in evenly distributing heat across long battery modules due to symmetrical or spiral cooling pipe designs, leading to uneven cooling and potential thermal runaway.
Innovation Solution
A tree-like cooling pipe structure is implemented, where the number of cooling pipes increases level by level, with a pipe inlet at the beginning and outlet at the end, enhancing heat transfer area and balancing temperature differences, combined with a liquid cooling plate for comprehensive heat exchange.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If symmetrical or spiral cooling pipe design is used, then the cooling pipe structure is simple and easy to manufacture, but the temperature distribution becomes uneven in long battery modules
Solution Approach 1:
The cooling pipe system is divided into multiple independent cooling pipes arranged in parallel, with each pipe serving a specific region of the battery module. This segmentation allows independent temperature control for different zones, solving the temperature uniformity problem while maintaining manufacturing simplicity through modular assembly
Solution Approach 2:
The patent transitions from symmetrical or spiral designs to an asymmetric multi-pipe configuration where cooling pipes are strategically positioned and sized according to the actual heat generation distribution in different regions of the battery module, achieving uniform temperature control through asymmetric thermal management
2Temperature
If the number of cooling pipes is increased level by level in tree-like structure, then the heat transfer area increases and temperature balance improves, but the cooling pipe structure complexity increases
Solution Approach 1:
Different regions of the battery module are equipped with different numbers and configurations of cooling pipes based on local heat generation characteristics. High-heat regions receive more cooling pipes while low-heat regions have fewer pipes, achieving optimal temperature balance without unnecessary structural complexity throughout the entire system
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
This design effectively addresses temperature gradients, improves heat transfer efficiency, and ensures even cooling, thereby extending the service life and safety of battery systems during high-rate charging.
Implementation Method 1
improves the heat transfer effectiveness by increasing the heat transfer area
Implementation Method 2
the flow direction of liquid in the cooling pipe is defined as a first direction
Data Source
AI summary
Disclosed in the present application is a cooling pipe structure, a liquid cooling plate, and a battery system, including: a cooling pipe set, in which the cooling pipe set comprises at least one cooling pipe, a flow direction of liquid in the cooling pipe is defined as a first direction, the cooling pipes are arranged in a tree-like structure from a side to an opposite side along the first direction, a side of the tree-like structure is a tree-like beginning, and an opposite side thereof is a tree-like end; a pipe inlet, in which the pipe inlet is in communication with a side of the tree-like beginning of the cooling pipe in the cooling pipe set; and a pipe outlet, in which the pipe outlet is in communication with a side of the tree-like end of the cooling pipe in the cooling pipe set.