Electric Vehicle Underbody Battery Cooling Layout
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Solution Overview
Problem
The existing underbody designs of electrically driven motor vehicles face challenges in efficiently integrating battery temperature control devices with battery modules without increasing construction space or compromising structural integrity, particularly in the arrangement of supply and removal devices for temperature control media.
Innovation Solution
The supply and removal devices for the temperature control medium are strategically arranged between the battery modules and vehicle sills, utilizing a battery frame and connecting regions to minimize additional construction space, ensuring a flat structure and stable accommodation, with the option of integrally bonded connections and a temperature control base structure to prevent undesirable contact and provide impact protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If supply and removal devices for temperature control medium are arranged in the region of vehicle sills, then construction space is optimized and flat structure is achieved, but device complexity increases
Solution Approach 1:
The supply and removal devices are arranged in the transverse direction between the battery structure and vehicle sills, utilizing the lateral space rather than increasing longitudinal or vertical dimensions. This dimensional approach optimizes construction space while maintaining a flat underbody structure.
Solution Approach 2:
The temperature control system is segmented into separate supply and removal devices positioned at different locations in the region of the vehicle sills. This segmentation allows independent optimization of each device's position and function, managing complexity through modular arrangement.
2Productivity
If battery temperature control device is integrated with battery modules, then functional efficiency is improved, but structural integrity may be compromised
Solution Approach 1:
A temperature control base structure is introduced as an intermediary element between the battery modules and the supply/removal devices. This base structure provides a stable mounting platform for the temperature control system while maintaining the structural integrity of the battery assembly and vehicle underbody.
Solution Approach 2:
The temperature control base structure is integrally bonded to both the battery structure and the vehicle sill, merging these components into a unified structural assembly. This integral connection ensures structural integrity while enabling effective thermal management.
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 arrangement allows for a compact, efficient, and robust integration of battery temperature control systems within the underbody, maintaining structural integrity while optimizing space usage and ensuring effective cooling or heating of battery modules without additional construction space requirements.
Implementation Method 1
at least one battery temperature control device... supply and/or removal devices for a temperature control medium
Implementation Method 2
temperature control medium... cooling liquid, such as cooling water
Data Source
AI summary
An underbody of an electrically driven motor vehicle, with a vehicle supporting structure, which is bounded laterally in a transverse direction of the vehicle by two vehicle sills between which a multiplicity of battery modules is arranged, which battery modules are assigned a battery supporting structure and at least one battery temperature control device, and with supply and removal devices for a temperature control medium. The supply and removal devices for the temperature control medium are arranged in the region of the vehicle sills.