Battery Pack Weight Balance via Split Equipment Box
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Solution Overview
Problem
Existing battery pack configurations in vehicles suffer from weight imbalance due to the heavier battery stack causing the centroid to bias towards it, leading to poor lateral weight distribution, and previous solutions like dividing the battery into two units result in increased complexity and additional components.
Innovation Solution
A battery pack design where the equipment box is divided into two sub-divisions, with a cooling fan on one side and a control module on the other, allowing for balanced weight distribution by placing these sub-divisions on either side of the battery stack, maintaining the integrity of the enclosure and adjusting the centroid to the vehicle's centerline.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the equipment box is located on one side of the battery stack, then the structure is simple, but the vehicle weight balance deteriorates
Solution Approach 1:
The equipment box is divided into two separate boxes: a first box containing the cooling fan and a second box containing the control module. These boxes are disposed on opposite sides of the battery stack, distributing weight symmetrically to balance the vehicle's lateral weight distribution while maintaining structural simplicity.
2Weight of moving object
If the battery is divided into two units and placed on respective sides of the vehicle, then the weight balance is achieved, but the number of components and wiring complexity increases
Solution Approach 1:
The cooling fan and control module, which are functionally distinct components, are merged into a single equipment box assembly that is divided into two sub-boxes. This approach achieves weight balance without requiring separate battery units or additional wiring boxes, thereby reducing overall system complexity.
3Stability of the object's composition
If the equipment box is disposed on one side, then the enclosure integrity is maintained, but the centroid deviates from the vehicle centerline
Solution Approach 1:
The equipment box is asymmetrically divided into two sub-boxes disposed on opposite sides of the battery stack. This asymmetric arrangement of sub-components within the unified enclosure achieves centroid alignment with the vehicle centerline while preserving the overall integrity of the battery pack enclosure.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design ensures excellent weight balance and integrity of the battery pack, preventing vehicle weight imbalance when mounted, without increasing the number of components or complexity, by evenly distributing the weight of the cooling fan and control module on both sides of the battery stack.
Implementation Method 1
the first box has a fan which supplies a medium used for adjusting the temperature of the battery stack
Data Source
AI summary
A battery pack to be mounted on a vehicle. The battery pack has a battery stack. A cooling fan, a fan relay, and a main relay (−) are disposed on one side of the battery stack. A control module, a register, a main relay (+), and a pre-charge relay are disposed on the other side of the same. As a result of devices being disposed on both sides of the battery stack, the weight of the battery pack is adjusted to the neighborhood of the center of the battery pack.