Vehicle Battery Pack Base Plate With Integrated Coolant Circuit
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Solution Overview
Problem
The increasing demand for electricity in modern vehicles leads to larger and more complex vehicle battery packs, occupying more space and requiring a more intricate structure, which complicates their design and assembly.
Innovation Solution
A vehicle battery pack design featuring supporting beams extending in a first direction with battery modules between them, where multiple battery cells are stacked on a base plate with end plates compressing them, and a coolant circuit integrated into the base plate for efficient heat management, simplifying the structure and reducing weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If several battery cells are encapsulated into battery modules through closed plates and arranged in a frame structure, then the battery pack provides sufficient structural support and thermal management, but the structure becomes more complex and occupies more vehicle space
Solution Approach 1:
The base plate is integrated with the coolant circuit, merging the structural support function and thermal management function into a single component. This eliminates the need for separate cooling plates or channels, thereby simplifying the overall structure while maintaining both structural strength and thermal management capabilities.
Solution Approach 2:
The base plate serves multiple functions simultaneously: it provides structural support for the battery cells, acts as a cooling plate with integrated coolant circuits for thermal management, and serves as a mounting surface for the battery modules. This multi-functionality reduces the number of separate components needed in the battery pack.
2Stability of the object's composition
If the battery pack uses a frame structure with multiple supporting beams and closed plates, then the structural stability is improved, but the system volume and weight increase
Solution Approach 1:
The base plate combines the functions of the supporting frame and the cooling plate into a single integrated component. This merging reduces the number of separate structural elements needed, thereby decreasing the overall system volume while maintaining structural stability through the reinforced design of the base plate with integrated coolant channels.
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 enhances the structural strength and thermal management of the battery pack, reducing system volume and assembly complexity while improving overall performance and user satisfaction.
Implementation Method 1
a coolant circuit integrated into the base plate for efficient heat management
Data Source
AI summary
A vehicle battery pack includes several supporting beams extending in a first direction; and battery modules located between the supporting beams. The battery module comprises: a base plate extending in the first direction; multiple battery cells arranged in a stacked manner and placed on the base plate; and end plates connected to the base plate, the end plates compress the multiple battery cells from both sides in the first direction. The battery cell has end faces facing a second direction and the end faces are adjacent to the supporting beams. A vehicle can include the aforementioned vehicle battery pack.