Cell Bracket Slot Layout for Higher-Density Battery Modules
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Solution Overview
Problem
Existing cell brackets for soft-pack batteries suffer from low space utilization due to intervals in the arrangement of busbars and cells.
Innovation Solution
The cell bracket design includes a bracket body with first and second slot groups, each containing busbar installing slots with overlapping sub-slots, allowing for more efficient use of space by aligning busbars in a misaligned manner.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If busbars and cells are arranged with intervals on the cell bracket, then the structure is simple and easy to manufacture, but the space utilization of the cell bracket is low
Solution Approach 1:
The patent transitions from a traditional single-plane arrangement to a three-dimensional overlapping arrangement of busbar installing slots. By allowing slots to overlap in the vertical dimension while maintaining horizontal spacing, the design achieves both manufacturing simplicity and improved space utilization. The overlapping sub-slots enable busbars to be installed at different heights, effectively utilizing the vertical space on the cell bracket.
Solution Approach 2:
The patent implements a nested structure where multiple installing sub-slots are contained within each busbar installing slot. Each slot contains first and second installing sub-slots that can hold busbars at different positions. This nesting approach allows multiple busbars to be arranged within the footprint of a single slot, significantly improving space utilization while maintaining a simple overall structure.
2Quantity of substance
If multiple cells are electrically connected in sequence through busbars on a cell bracket, then the energy density of the battery module is improved, but the space utilization of the cell bracket becomes low
Solution Approach 1:
To accommodate more cells for higher energy density, the patent utilizes the vertical dimension by creating overlapping installing sub-slots at different heights. This allows busbars connecting multiple cells to be arranged in three dimensions rather than just on a flat plane, enabling more cells to be connected within the same footprint while maintaining adequate spacing for manufacturing and assembly.
Data Source
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AI summary
A cell bracket (1) and a battery module are provided, and relate to the field of battery technology. The cell bracket (1) is provided with a first direction and a second direction, and the cell bracket (1) includes: a bracket body (11), a plurality of first busbar installing slots (111) and a plurality of second busbar installing slots (112) are disposed on the bracket body (11). Each first busbar installing slot (111) and each second busbar installing slot (112) are arranged in sequence along the first direction respectively. The first busbar installing slots (111) and the second busbar installing slots (112) are spaced apart along the second direction. Each of the first busbar installing slots (111) includes a first installing sub-slot (1111) and a second installing sub-slot (1112), and the first installing sub-slot (1111) and the second installing sub-slot (1112) at least partially overlap along the second direction.