Electric Vehicle Battery Case Vertical Component Stacking
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Solution Overview
Problem
The existing configuration of electric motorcycles with batteries placed below the seat raises the center of gravity due to the heavy weight of batteries, leading to longer high-voltage electric wires and occupation of space by electric components, which increases the length of electric wires and reduces space for other components.
Innovation Solution
The electric components are arranged in multiple layers vertically above the battery case, with the battery placed at a lower position to lower the center of gravity, reducing the length of electric wires and optimizing space usage, and an electromagnetic shield member is used to prevent electromagnetic noise and support components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If batteries are placed below the seat to increase cruising distance, then battery capacity is improved, but the center of gravity is raised due to heavy weight
Solution Approach 1:
The patent transitions from horizontal placement of batteries to vertical stacking arrangement, utilizing the vertical dimension to organize electric components. By stacking batteries and components vertically, the design lowers the center of gravity while accommodating increased battery capacity for extended cruising distance.
2Adaptability or versatility
If electric components are placed in different locations spaced apart from batteries, then component layout flexibility is improved, but electric wire length is increased
Solution Approach 1:
The patent merges the placement locations of electric components and batteries by positioning components directly above the batteries in a vertical arrangement. This consolidation reduces the spatial separation between components and their power sources, thereby minimizing electric wire length while maintaining layout flexibility.
3Length of stationary object
If electric components are placed close to batteries to reduce wire length, then wire length is reduced, but space for other components is occupied
Solution Approach 1:
The patent resolves the space conflict by utilizing the vertical dimension for component placement. Electric components are stacked vertically above the batteries in multiple layers, allowing close proximity for short wires while preventing horizontal space occupation that would interfere with other vehicle components.
4Stability of the object's composition
If batteries are placed at lower position to lower center of gravity, then vehicle stability is improved, but component layout complexity is increased
Solution Approach 1:
The patent segments electric components into multiple vertical layers stacked above the batteries. This segmentation organizes components systematically in the vertical dimension, simplifying the layout process while achieving the goal of lowering the center of gravity for improved vehicle stability.
Data Source
AI summary
An electric vehicle comprises an electric motor which generates driving power for driving a wheel; a battery case accommodating a battery storing DC power to be supplied to the electric motor, in a battery space in an interior of the battery case; and a plurality of electric components electrically connected to the battery and placed above the battery, wherein the plurality of electric components are placed in a plurality of layers, and arranged vertically to overlap with each other when viewed from above.