Battery Pack Case Inclined Plate Cooling Structure
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Solution Overview
Problem
Conventional battery pack cooling systems lack uniformity and integration with mechanical structures, leading to inefficient heat dissipation and potential safety risks in high-output, large-capacity battery modules, especially in compact designs.
Innovation Solution
A battery pack case with separate coolant inlet ports and an inclined plate to guide coolant flow between battery module groups, ensuring independent cooling of each module and enhancing structural strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single coolant channel is formed throughout the battery pack, then the cooling system is simple, but the battery cells cannot be uniformly cooled
Solution Approach 1:
The battery pack is divided into multiple battery module groups, and separate coolant inlet ports are provided for each group. This segmentation allows independent cooling channels for each module group, ensuring uniform cooling distribution while maintaining reasonable system complexity
Solution Approach 2:
Different regions of the battery pack are provided with localized cooling solutions through separate coolant inlet ports positioned at specific locations (e.g., front side, rear side, or both sides). This ensures that each local region receives appropriate cooling according to its specific thermal characteristics
2Ease of manufacture
If the mechanical structure and cooling structure are separated, then each structure can be optimized independently, but the inner space of the battery pack becomes insufficient
Solution Approach 1:
The cooling structure is integrated with the mechanical structure by forming the coolant inlet ports as part of the battery pack case itself. The case structure serves dual functions as both mechanical housing and cooling fluid distribution system, eliminating the need for separate cooling components and maximizing space utilization
Solution Approach 2:
The battery pack case is designed to perform multiple functions simultaneously: it provides mechanical protection, structural support, and coolant distribution. This multi-functionality reduces the overall component count and optimizes the use of available space within the battery pack
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 configuration ensures uniform cooling, reduces temperature deviations, and increases the structural integrity of the battery pack, effectively preventing overheating and enhancing safety by improving heat dissipation and mechanical strength.
Implementation Method 1
a coolant for cooling the unit modules flows from one side of the battery modules to the opposite side of the battery modules
Implementation Method 2
a coolant for cooling the unit modules flows from one side of the battery modules to the opposite side of the battery modules
Data Source
AI summary
Disclosed herein is a battery pack case configured to receive a battery module assembly including a plurality of battery modules, each having a plurality of battery cells or unit modules mounted therein, sequentially stacked, wherein a coolant inlet port and a coolant outlet port are located at the upper part and the lower part of the battery pack case, respectively, in a state in which the coolant inlet port and the coolant outlet port are opposite to each other such that a coolant for cooling the unit modules flows from one side of the battery modules to the opposite side of the battery modules in a direction perpendicular to a direction in which the unit modules are stacked, and an inclined plate for guiding the flow of the coolant is provided between the battery pack case and the battery modules.