Battery Pack Mounting Under Vehicle Floor Panel
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Solution Overview
Problem
The existing methods for mounting battery packs in vehicles, either in the trunk or under the floor panel, result in a reduction of practical space in the passenger compartment or trunk, compromising comfort and requiring additional space allocation, which affects the overall vehicle body's space utilization.
Innovation Solution
A mounting structure that incorporates a floor panel, seat rails, cross members, and a battery pan to position the battery pack within an over-floor framework, allowing for the battery pack to be securely held between the floor panel and the battery pan, utilizing a stepped joint surface for attachment and providing a multilayer framework for support and protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the battery pack is mounted in the trunk, then the motor can operate with electricity, but the trunk capacity is reduced
Solution Approach 1:
The patent transitions from mounting battery packs in the horizontal plane (trunk) to utilizing the vertical dimension by positioning battery packs under the floor panel. This dimensional change allows the battery packs to be accommodated in the vertical space between the floor panel and the under-floor framework, thereby preserving trunk capacity while ensuring motor operation capability.
2Volume of stationary object
If the battery pack is mounted under the floor panel, then the trunk capacity is preserved, but the passenger compartment space is reduced
Solution Approach 1:
The patent applies local quality by creating a localized raised portion in the floor panel structure that accommodates the battery pack. This localized modification confines the battery pack to a specific area under the floor panel, preventing it from encroaching on the overall passenger compartment space while still preserving trunk capacity.
3Ease of manufacture
If the floor surface is heightened to secure battery pack space, then the battery pack can be mounted under the floor panel, but the practical space of the vehicle body is reduced
Solution Approach 1:
The patent segments the floor panel structure into multiple components: the floor panel itself, a raised portion, and an under-floor framework. This segmentation allows the battery pack to be mounted in the space created by these segmented components without requiring a uniform heightening of the entire floor surface, thereby preserving practical vehicle body space.
4Reliability
If a large number of battery packs are mounted in the vehicle body, then the motor can operate with sufficient electricity, but the space utilization of the vehicle body is compromised
Solution Approach 1:
The patent utilizes the vertical dimension by positioning battery packs in the space between the floor panel and the under-floor framework. This dimensional approach allows multiple battery packs to be mounted without compromising the horizontal space utilization of the vehicle body, thereby ensuring sufficient motor operation capability while maintaining optimal space utilization.
Data Source
AI summary
A battery pack held under a floor panel by a battery pan attached under the floor panel of a vehicle body is disposed at a position inside a over-floor framework formed over the floor panel by a pair of seat rails, a front upper seat cross member, and a right upper seat cross member.