Battery Module Cooling Structure for Space-Efficient Vibration Durability
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Solution Overview
Problem
Current battery modules face challenges in achieving structural durability against vibrations and impacts while maintaining an efficient cooling structure, especially in large-capacity applications where space utilization and assembly efficiency are compromised.
Innovation Solution
A battery module design featuring a stacked battery cell configuration with a housing, end plates, and an integrated heat sink system that includes coolant injection and discharge ports, along with a pack frame for mounting, which enhances durability and cooling efficiency by optimizing the arrangement of cooling components and mounting parts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a complex cooling system is added to ensure cooling performance, then cooling efficiency is improved, but device complexity and assembly difficulty increase
Solution Approach 1:
The cooling system is integrated with the battery module housing structure. The heat sink is combined with the housing to form a unified structure, and the cooling channels are formed within the housing itself, eliminating the need for separate cooling components and reducing assembly complexity while maintaining effective cooling performance
2Temperature
If more cooling components are added to improve cooling performance, then cooling efficiency is improved, but space utilization decreases
Solution Approach 1:
The cooling channels are nested within the housing structure, with the heat sink integrated into the housing walls. This nested arrangement allows the cooling system to occupy the same space as the housing, eliminating additional volume requirements and maximizing space utilization while providing effective cooling
3Reliability
If mounting parts are added to improve structural durability, then durability against vibrations and impacts is improved, but device complexity increases
Solution Approach 1:
The housing structure serves multiple functions: it provides mechanical protection, forms the cooling channels, and includes integrated mounting parts for securing the battery module. This multi-functional design improves durability through robust mounting while avoiding the need for separate mounting components, thus reducing overall device complexity
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 increases the capacity and space utilization of battery modules, improves durability against vibrations and impacts, and simplifies the assembly process by integrating cooling structures and components, leading to enhanced cooling performance and manufacturing efficiency.
Implementation Method 1
a heat sink that is located under the bottom part of the housing; a coolant injection port that supplies coolant to the heat sink; and a coolant discharge port that discharges the coolant from the heat sink
Data Source
AI summary
A battery module including: a battery cell stack including a plurality of battery cells; a housing for the battery cell stack; first and second end plates that cover opposite sides of the battery cell stack; a heat sink located under a bottom part of the housing; a coolant injection port that supplies coolant to the heat sink; and a coolant discharge port that discharges the coolant from the heat sink. The first end plate includes first mounting parts formed on one surface of the first end plate. The housing includes first and second housing protrusions that protrude from the bottom part of the housing and pass through the first end plate. The coolant injection port is located on the first housing protrusion, and the coolant discharge port is located on the second housing protrusion.