Multi-Layer Battery Pack Module Stacking for Space Optimization
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Solution Overview
Problem
Conventional battery packs for vehicles occupy excessive space due to their electrical connection and mounting configuration, limiting space utilization and mounting flexibility within the vehicle.
Innovation Solution
A battery pack design featuring a layer structure with at least one battery module stacked relative to others, incorporating a battery management system and disconnect unit, and utilizing different cooling members to optimize size, shape, and structure, allowing for balanced weight distribution and efficient space use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If battery modules are arranged in a conventional single-layer configuration, then the mounting structure is simple, but the battery pack occupies excessive space in the vehicle
Solution Approach 1:
The patent transitions from a conventional single-layer arrangement to a multi-layer stacked configuration, utilizing the vertical dimension to arrange battery modules. This dimensional change allows the battery pack to occupy less horizontal space in the vehicle while maintaining the required battery capacity, effectively resolving the space occupation problem.
Solution Approach 2:
The patent implements a nested arrangement where battery modules are stacked vertically in multiple layers, with each layer containing modules arranged in series. This nesting approach allows efficient space utilization by stacking functional units vertically, reducing the overall footprint of the battery pack in the vehicle.
2Adaptability or versatility
If battery modules are arranged in a multi-layer structure, then space utilization is improved, but the electrical connection and mounting complexity increases
Solution Approach 1:
The patent divides the battery pack into multiple independent layers, with each layer containing a complete set of battery modules arranged in series. This segmentation allows each layer to function as an independent unit, simplifying the electrical connection scheme and enabling flexible mounting configurations where layers can be independently installed or removed.
Solution Approach 2:
The patent designs the multi-layer structure with standardized interfaces and universal mounting patterns that allow the same structural framework to accommodate different battery module configurations. This universality enables the system to adapt to various mounting positions and vehicle layouts without requiring complex customizations.
3Volume of stationary object
If conventional battery pack design is used, then the structure is straightforward, but it limits the internal space utilization of the vehicle
Solution Approach 1:
The patent employs vertical stacking of battery modules in multiple layers, transforming the traditional horizontal expansion approach into vertical utilization. This dimensional change allows the battery pack to achieve the required capacity while occupying less horizontal space, thereby increasing the available internal space in the vehicle for other components or passenger space.
Data Source
AI summary
The present invention relates to a battery pack including: a plurality of battery modules each including a plurality of battery cells, wherein at least one of the battery modules has a layer structure with the remaining battery modules based on the ground; a battery management system (BMS) mounted adjacent to the battery modules and monitoring and controlling operation of the battery modules; a battery disconnect unit (BDU) mounted adjacent to the battery modules and controlling electrical connection of the battery modules; a base plate having a structure in which the battery modules are mounted on an upper surface thereof and a lower end part thereof is fixed to an external device; and a pack cover surrounding the battery modules and coupled to an outer periphery of the base plate.