Vertical Battery Module Housing for Vehicle Energy Storage
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Solution Overview
Problem
Existing high-voltage energy storage arrangements in motor vehicles, particularly those in low positions, face challenges in mechanical protection without increasing construction space or reducing crash energy absorption, as thicker protective plates enhance crash energy absorption but reduce chassis deformation and increase load levels.
Innovation Solution
The energy storage arrangement features a protective device positioned above the ground clearance line with vertically arranged battery module housings and load introduction elements below the housing walls, which can be directly or indirectly connected, allowing for efficient load distribution and reduced construction space requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the thickness of the protective plate is increased, then the crash energy absorbed by the protective plate is improved, but the spring travel of the chassis is reduced and the load levels increase
Solution Approach 1:
The patent transitions from horizontal support arrangement to vertical support arrangement, changing the dimensional orientation of the load-bearing structure. The at least one support is arranged vertically between the protective plate and the battery module housing, extending in the vertical direction to provide load introduction. This vertical dimensionality allows the protective plate to maintain reduced thickness while still effectively transferring loads through the vertical support to the battery module housing, resolving the contradiction between crash energy absorption and spring travel.
2Strength
If the protective plate thickness is increased, then the crash energy absorption is improved, but the overall construction space can be reduced only insubstantially
Solution Approach 1:
The patent utilizes the vertical dimension by arranging the support vertically between the protective plate and battery module housing. This vertical load introduction path allows the protective plate to be thinner while maintaining crash energy absorption capabilities, as the vertical support efficiently transfers loads to the battery module housing. Consequently, the overall construction space in the horizontal plane is reduced without compromising protective performance.
Solution Approach 2:
The patent changes the orientation parameter of the support from horizontal to vertical, and optimizes the geometric parameters of the vertical support to achieve efficient load transfer. By adjusting the vertical support's dimensions and positioning, the system achieves effective crash energy absorption with a thinner protective plate, thereby reducing the overall construction space while maintaining safety performance.
3Volume of stationary object
If vertically arranged housing walls are used with load introduction elements below, then construction space is reduced, but the load distribution complexity increases
Solution Approach 1:
The vertical support serves multiple functions simultaneously: it acts as a structural element defining the load-bearing path, as a load introduction element transferring forces from the protective plate to the battery module housing, and as a spatial organizer enabling compact vertical arrangement. This multi-functionality reduces the need for separate dedicated components, simplifying the overall load distribution structure while achieving reduced construction space.
Solution Approach 2:
The patent merges the support structure with the load introduction function by integrating the vertical support directly between the protective plate and battery module housing. This consolidation eliminates the need for separate load introduction elements, reducing structural complexity while maintaining effective load distribution. The vertical support combines structural, protective, and load-transfer functions in a single integrated component.
Data Source
AI summary
An energy storage arrangement for a motor vehicle, including a protective device which can be arranged above a ground clearance line of the motor vehicle, and at least one battery module which is arranged above the protective device and which has at least one load-bearing battery module housing and at least one battery cell pack arranged in the interior of the battery module housing. The battery module housing includes at least two vertically arranged housing walls. The protective device has a protective plate and at least two load introduction elements arranged above the protective plate. The load introduction elements are arranged below the housing walls.