Cross-Beam Battery Pack Layout for Module-Free Cell Integration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing power battery packs for electric vehicles have low space utilization and energy density, leading to limited battery life and increased costs due to complex assembly processes and unnecessary mounting structures.
Innovation Solution
A power battery pack design featuring a pack body with middle cross beams that divide the space into accommodating chambers, allowing direct arrangement of cells without conventional battery modules, reducing the need for mounting structures and increasing cell volume ratio, thus enhancing space utilization and energy density.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional battery modules with mounting structures are used, then cells can be securely mounted, but space utilization and energy density decrease due to unnecessary mounting structures
Solution Approach 1:
The patent removes conventional battery modules and their mounting structures from the system. Cells are directly arranged and fixed to the cross beams in the pack body, eliminating the intermediate battery module structure. This extraction of unnecessary components increases space utilization while maintaining secure mounting through direct attachment of cells to the cross beam framework.
2Reliability
If conventional battery modules with multiple assembly procedures are used, then cells can be mounted, but assembly complexity and costs increase
Solution Approach 1:
The patent merges the cell mounting function directly into the cross beam structure. The cross beams serve dual purposes as both structural support and mounting fixtures for the cells. This consolidation eliminates separate mounting procedures and reduces assembly steps while maintaining secure cell fixation, thereby reducing assembly complexity and costs.
3Volume of stationary object
If cells are directly arranged in accommodating chambers without modules, then space utilization and energy density increase, but assembly simplicity must be maintained
Solution Approach 1:
The patent segments the pack body into multiple accommodating chambers using cross beams, which provides structured organization for direct cell arrangement. This segmentation creates defined spaces for cell placement while the cross beams themselves serve as mounting fixtures, maintaining assembly simplicity despite the direct cell arrangement that increases space utilization.
Data Source
AI summary
Provided are a power battery pack and an electric vehicle. The power battery pack includes: a pack body, where an accommodating space is defined in the pack body, the pack body is provided therein with at least one widthwise cross beam or lengthwise cross beam, the widthwise cross beam extends along a width direction of the power battery pack, the lengthwise cross beam extends along a length direction of the power battery pack, and the accommodating space is divided into a plurality of accommodating chambers by the at least one widthwise cross beam or lengthwise cross beam; and a plurality of cells, disposed in the pack body and directly arranged in the accommodating chambers, where at least one cell is arranged in each accommodating chamber to form a cell array.