Quick-Swapping Battery Pack Layout for Lower Center of Gravity
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Solution Overview
Problem
The existing battery packs in electric trucks have a high center of gravity, are less stable, and occupy excessive space, leading to poor driving experience and safety issues due to their placement above the longitudinal beam, requiring high-maintenance and large-area battery swapping stations.
Innovation Solution
A quick-swapping battery pack design with a groove at the top, featuring locking connection structures that connect to the longitudinal beam, distributing battery cell accommodating cavities on both sides and below the beam to reduce the center of gravity and enhance stability, allowing for higher space utilization and efficient swapping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the battery pack is arranged above the longitudinal beam of the vehicle body, then the battery pack can be installed and supported, but the center of gravity of the battery pack becomes higher, reducing stability and safety
Solution Approach 1:
The patent inverts the conventional battery pack arrangement by positioning the battery pack below the longitudinal beam instead of above it. This inversion fundamentally changes the center of gravity location, moving it lower to improve vehicle stability while maintaining installation feasibility through the designed mounting structure with locking connection structures.
2Ease of manufacture
If the battery pack is arranged above the longitudinal beam, then the battery pack can be supported, but it takes up more space behind the driver, resulting in poor driving experience
Solution Approach 1:
The patent relocates the battery pack from the space above the longitudinal beam to the space below it, effectively inverting the arrangement. This frees up the previously occupied driver space, improving the driving experience while maintaining adequate support through the designed mounting structure.
3Ease of operation
If the battery pack is set above the longitudinal beam, then the battery pack can be replaced, but a lifting structure is required, making the battery swapping station tall and covering a large area with high maintenance costs
Solution Approach 1:
By positioning the battery pack below the longitudinal beam, the patent eliminates the need for lifting structures in the battery swapping station. The battery can be directly accessed and replaced at ground level, significantly reducing the station's building height and land area requirements while lowering maintenance costs.
Solution Approach 2:
The locking connection structures are designed to enable quick and easy battery pack replacement without requiring complex lifting equipment. The battery pack can be swiftly detached and replaced by simply operating the locking mechanisms, facilitating efficient battery swapping operations.
Data Source
AI summary
The present application discloses a quick-swapping battery pack and an electric vehicle, the quick-swapping battery pack is detachably provided on the longitudinal beam, the top of the quick-swapping battery pack is provided with a groove, the quick-swapping battery pack includes a battery pack box and an battery cell, the battery pack box is provided with several locking connection structures, several locking connection structures are located in the groove, the battery pack box is provided with several battery cell holding cavities for placing the battery cell, at least some of the battery cell holding cavities are distributed on both sides of the groove, the battery pack box is connected to the longitudinal beam, reducing the center of gravity of the battery pack and increasing the stability of the battery pack, and enhancing a larger space for vehicle smoothness and safety.