Battery Cell Module Side-Plate Structure for Higher Pack Rigidity
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Solution Overview
Problem
Battery packs in existing technologies suffer from low rigidity due to unstable fixed mounting of cells, leading to inadequate stability and structural integrity.
Innovation Solution
A cell module design incorporating a plate group with end and side plates that intersect at right angles, stabilizing cell positions through adhesive connections and additional side plates between cell groups, enhancing rigidity by limiting cell movement and absorbing impact forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If cells are mounted without additional side plates, then device complexity is reduced, but rigidity and structural integrity deteriorate
Solution Approach 1:
The battery pack structure is segmented into cell groups with side plates inserted between adjacent cell groups. This segmentation allows the side plates to independently reinforce specific regions, improving overall rigidity without requiring a complete structural redesign of the entire battery pack.
Solution Approach 2:
Side plates are strategically positioned between adjacent cell groups rather than uniformly across the entire structure. This local reinforcement approach targets areas where rigidity is most needed while minimizing additional complexity in regions where structural support is already sufficient.
2Stability of the object's composition
If cells are fixed with minimal mounting structures, then ease of manufacture is improved, but stability and position fixation deteriorate
Solution Approach 1:
Side plates serve as intermediary components between adjacent cell groups, providing a stable mounting surface for fixing cells. These intermediate structures distribute mechanical stresses and improve position fixation without requiring complex direct mounting mechanisms between cells.
Solution Approach 2:
Side plates are pre-positioned between cell groups before final cell mounting. This preliminary action establishes stable reference surfaces and predetermined mounting locations, simplifying the subsequent cell assembly process and ensuring proper position fixation from the outset.
Data Source
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AI summary
The present invention relates to a cell module (100), a battery pack (200) and a method for assembling the battery pack (200), and a vehicle (1000). The cell module (100) includes a plate group and a plurality of cell groups, where the plurality of the cell groups include a plurality of cells (11) arranged in a first direction, the plurality of the cell groups are arranged in a second direction, the plate group includes a plurality of end plates (30) and a plurality of side plates (20), both ends of the cell groups in the first direction are provided with the end plates (30), and the plurality of the side plates (20) include two side plates (20) arranged at both sides of the plurality of the cell groups in the second direction and at least one side plate (20) located between two adjacent cell groups, where the first direction intersects with the second direction.