Angled Battery Pack Modules for Uniform Cooling
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Solution Overview
Problem
Conventional battery packs face issues with increased longitudinal length and non-uniform cooling of battery modules during operation, as they do not efficiently distribute airflow through the modules.
Innovation Solution
The battery pack design features battery modules disposed at an acute angle relative to the base and cover assemblies, with multiple flow channels and an electric fan assembly that directs airflow through these channels to ensure uniform cooling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If battery modules are arranged in a conventional longitudinal configuration, then the battery pack structure is simple, but the longitudinal length increases and cooling uniformity deteriorates
Solution Approach 1:
The battery modules are arranged at an acute angle relative to the base assembly rather than in a conventional longitudinal or parallel configuration. This angular arrangement in a different spatial dimension reduces the longitudinal length of the battery pack while allowing airflow to uniformly cool all modules through the defined flow paths
2Temperature
If conventional airflow paths are used, then the structure is simple, but airflow distribution through battery modules becomes non-uniform
Solution Approach 1:
The cooling system is segmented into multiple distinct flow paths (first flow path and second flow path) that distribute airflow through different routes. The first flow path directs air over the top surfaces of battery modules while the second flow path directs air through flow channels within the modules, ensuring uniform cooling across all modules through this segmented approach
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 reduces the longitudinal length of the battery pack and achieves uniform airflow through each module, effectively cooling them during operation.
Implementation Method 1
an electric fan assembly that is disposed in the interior region and fluidly communicates with the second flow path. The electric fan assembly is adapted to urge air to flow through an inlet aperture of the cover assembly, and through the first flow path, and the plurality of flow channels of the battery module, and the second flow path
Implementation Method 2
The battery module further includes a plurality of flow channels extending through the battery module from the top surface to the bottom surface
Data Source
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AI summary
A battery pack having a battery module with a bottom surface and a top surface is provided. The battery module includes a plurality of flow channels extending through the battery module from the top surface to the bottom surface. The battery pack includes a base assembly adapted to hold the battery module therein. The base assembly has a bottom wall and a first end and a second end. The bottom surface of the battery module is disposed at an acute angle relative to the bottom wall of the base assembly in a first direction extending from the first end toward the second end. The battery pack includes a cover assembly having a top wall extending substantially parallel to the bottom wall of the base assembly, and a top surface of the battery module that is disposed at an acute angle relative to the top wall of the cover assembly.