Vertical Stacked Battery Module for Compact Two-Wheeled Vehicle Power
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Two-wheeled vehicles, such as motor scooters, have limited space for battery installation, requiring innovative arrangements of high power rechargeable batteries that are typically designed for larger vehicles, necessitating a compact and efficient battery module configuration.
Innovation Solution
A battery module design featuring a first and second housing with connecting members that electrically connect lithium ion secondary batteries in series and parallel configurations, utilizing bus bars and protection plates for stable and compact stacking, allowing for efficient use of limited space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If high power rechargeable batteries are arranged in a plane (side-by-side), then electrical connection and power output are improved, but the area occupied increases making it unsuitable for two-wheeled vehicles
Solution Approach 1:
The patent transitions from planar (2D) battery arrangement to vertical stacking (3D arrangement). Multiple battery modules are stacked vertically with connecting members extending in the vertical direction, enabling high power output while minimizing the horizontal footprint suitable for two-wheeled vehicle installation spaces.
Solution Approach 2:
The patent implements a nested structure where multiple battery modules are stacked within a housing structure. Each battery module contains multiple rechargeable batteries arranged in series, and multiple such modules are stacked vertically, creating a compact nested configuration that maximizes power density in limited space.
2Power
If multiple rechargeable batteries are connected in series to increase power, then power output is improved, but the height and structural complexity increase
Solution Approach 1:
The patent divides the battery system into multiple modular units, each containing a series-connected arrangement of rechargeable batteries. These modular segments are then stacked vertically, allowing the system to achieve high power through series connections while maintaining manageable structural complexity through standardization and modularity.
Solution Approach 2:
The connecting members serve multiple functions: they provide electrical connections between batteries in series, provide mechanical support for vertical stacking, and enable thermal management pathways. This multi-functionality reduces the need for separate components, thereby reducing overall structural complexity despite the series configuration.
3Reliability
If rechargeable batteries are supported in a floating state via leaf spring, then shock absorption is improved, but the height required increases
Solution Approach 1:
The patent absorbs shocks and vibrations primarily through the vertical stacking configuration and rigid housing structure rather than through vertical compression of flexible elements. The connecting members and housing provide structural integrity while accommodating thermal expansion and contraction, reducing the need for height-consuming shock absorption mechanisms.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A battery module including a first housing and a second housing, the first housing and the second housing each retaining a plurality of rechargeable batteries electrically connected to each other, the second housing being stacked on the first housing, and at least one of the rechargeable batteries retained by the second housing being coupled with at least one of the rechargeable batteries retained by the first housing; and a connecting member electrically connecting electrode terminals of the at least one rechargeable battery retained by the first housing and the at least one rechargeable battery retained by the second housing.