Battery Module Support Rail With Isolation Strip for Thermal Blocking
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional electrical energy stores, such as traction batteries for electrified vehicles, experience undesirable thermal coupling between storage modules due to thermal events, which can lead to further thermal events through heat and particle transfer via channels formed by clamping strip depressions.
Innovation Solution
A support device with a clamping strip featuring depressions that form channels is used, accompanied by an isolation strip to cover these channels, made of heat-resistant materials like aluminum or steel sheets, to prevent thermal events from spreading to adjacent modules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If continuous channels are formed by depressions in the clamping strip for fastening storage modules, then the fastening reliability is improved, but thermal coupling between storage modules increases leading to potential thermal events spreading
Solution Approach 1:
The isolation strip segments the continuous channel into isolated sections by placing insulating elements at specific positions within the depressions. This segmentation prevents thermal energy from continuously transferring between storage modules while maintaining the structural integrity and fastening function of the channel.
Solution Approach 2:
The isolation strip acts as an intermediary element inserted into the fastening channel. It provides mechanical support for fastening storage modules while simultaneously blocking thermal transfer pathways, thus mediating between the conflicting requirements of fastening reliability and thermal isolation.
2Object-affected harmful factors
If an isolation strip is added to close the channels and prevent thermal coupling, then thermal isolation between storage modules is improved, but the device complexity increases
Solution Approach 1:
The isolation strip combines multiple functions into a single component: it provides thermal isolation by blocking heat transfer pathways, maintains structural support for fastening storage modules, and integrates with the existing channel geometry. This merging of functions achieves thermal protection without proportionally increasing device complexity.
Solution Approach 2:
The isolation strip utilizes a thin-walled profile structure that provides effective thermal isolation with minimal material usage and structural complexity. The thin film approach blocks thermal pathways while maintaining flexibility for installation and integration into the existing fastening system.
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
The isolation strip effectively reduces thermal coupling between storage modules, ensuring thermal events in one module do not trigger similar events in adjacent modules, while maintaining low weight and ease of installation.
Implementation Method 1
an isolation strip (17) which is to be arranged on the upper side (13) of the clamping strip (10) and which is designed to close the channels (16) in order to prevent a thermal event of one storage module (2) from being transmitted to another storage module (2) located opposite in the transverse direction (Q)
Data Source
AI summary
A support device for an electrical energy store for arrangement in a storage housing between at least two storage modules of the electrical energy store and for holding the storage modules, which can be fastened to both sides of the support device in the transverse direction, in the storage housing, includes: a beam for fastening to the storage housing, having a bearing face on which holding elements of the storage modules are to be placed; a clamping strip for arrangement on the bearing face of the beam and for clamping the holding elements of the storage modules; and fasteners for fastening the clamping strip to the beam. In an upper side of the clamping strip there are formed depressions which are arranged spaced apart from one another in the longitudinal direction of the support device and which are configured to receive the fasteners. The depressions form continuous channels in the transverse direction. An isolation strip is to be arranged on the upper side of the clamping strip and is designed to close the channels in order to prevent a thermal event of one storage module from being transmitted to another storage module located opposite in the transverse direction. The strip has two side parts which extend in the longitudinal direction and cover the depressions at the sides, and cover regions which cover the depressions on the upper side.