Insulating Plate Layout for EV Battery Cell Holding and Cooling
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Solution Overview
Problem
Existing high-voltage storage devices for electric vehicles require a configuration that minimizes installation space while maintaining passenger comfort and optimizing mechanical connection strength and heat dissipation, while also ensuring electrical insulation between battery cells and cooling plates.
Innovation Solution
A holding device with an insulating plate featuring recess patterns for battery cells, including positioning supports and flow grooves for an electrically insulating adhesive, which ensures reliable positioning and optimal adhesive force, while preventing contact between battery cells and cooling plates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If complex plug-in holding devices are used for battery cells, then reliable positioning and electrical insulation are achieved, but device complexity and installation space increase
Solution Approach 1:
The patent combines multiple functions into a single insulating plate: positioning support for battery cells, electrical insulation from cooling plates, and adhesive application guidance. This integration eliminates the need for separate complex plug-in holding devices while maintaining all necessary functions.
Solution Approach 2:
The insulating plate serves multiple purposes simultaneously: it provides mechanical positioning support, ensures electrical insulation between battery cells and cooling plates, and guides adhesive flow for secure bonding. This multi-functionality reduces overall device complexity.
2Temperature
If cooling plates are positioned close to battery cells for heat dissipation, then thermal efficiency improves, but electrical insulation becomes more difficult to maintain
Solution Approach 1:
The insulating plate acts as an intermediary component between the battery cells and cooling plates. It enables close thermal coupling for efficient heat dissipation while simultaneously providing the necessary electrical insulation barrier, resolving the conflict between thermal and electrical requirements.
3Ease of manufacture
If adhesive is applied without flow grooves, then application is simpler, but air bubbles form and adhesive force is reduced
Solution Approach 1:
The insulating plate incorporates flow grooves at specific locations where adhesive needs to be applied. These localized features guide adhesive flow to ensure complete cavity filling without air bubbles, improving bonding reliability without significantly complicating the manufacturing process.
4Ease of operation
If more installation space is allocated for battery cells, then passenger comfort is maintained, but packing density and range decrease
Solution Approach 1:
The insulating plate is designed with a recess pattern that segments the space around each battery cell. This segmentation allows for precise positioning and efficient space utilization, maximizing packing density while maintaining necessary clearance for thermal and electrical 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
The solution provides a cost-effective, space-efficient, and thermally efficient configuration that enhances electrical insulation and mechanical stability, reducing installation space requirements and improving heat dissipation.
Implementation Method 1
an electrically insulating adhesive and a specially configured insulating plate shall firstly be used as a holder
Implementation Method 2
flow grooves for the introduction of an electrically insulating adhesive
Implementation Method 3
When constructing a module from a plurality of battery cells, these should be protected from overheating by cooling plates
Data Source
AI summary
A holding device for battery cells forming a high-voltage module that can be used for electrically driven motor vehicles includes an insulation plate provided with a pattern of recesses for each of the battery cells, the pattern of recesses includes positioning supports for the battery cell and flow grooves for an electrically insulating adhesive mass to be introduced.