Elastic Adhesive Housing Seal for Automated Battery Module Sealing
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Solution Overview
Problem
Existing sealing technologies, such as silicone and polyurethane sealants, face challenges in providing reliable, automated, and cost-effective sealing solutions for housing connections, particularly in the battery module sector, where they lack ease of application, high sealing efficiency, and recyclability.
Innovation Solution
A housing seal utilizing an elastic adhesive strip arranged between housing elements with edge faces forming a sealing gap, allowing for automated application and reclosability, which is achieved by using an adhesive tape that expands when compressed to prevent fluid communication, ensuring watertightness and corrosion resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If silicone sealants are used for sealing housing connections, then reliable sealing is achieved, but processing time increases due to curing requirements
Solution Approach 1:
The patent extracts the sealing function from liquid sealants and implements it through pre-formed elastic adhesive strips that provide immediate sealing upon application, eliminating the curing time requirement while maintaining sealing reliability
Solution Approach 2:
The patent changes the physical state of the sealing material from liquid (silicone sealant requiring curing) to solid elastic strips that provide immediate sealing effect, fundamentally altering the time-parameter of the sealing process
2Ease of manufacture
If butyl sealants are used for sealing, then cost is reduced, but metering control becomes difficult and aging resistance decreases
Solution Approach 1:
The patent employs composite construction of the elastic adhesive strip combining elastic material for sealing with adhesive properties for secure bonding, achieving both cost-effectiveness and reliable aging resistance through material composition
3Temperature
If elastic sealants are used for sealing, then temperature stability is improved, but flexibility decreases and exact fit requirements increase
Solution Approach 1:
The patent utilizes flexible elastic adhesive strips with inherent elasticity that can adapt to various gap configurations while maintaining temperature stability, replacing rigid sealant applications
4Extent of automation
If foam-in-place sealants are used for automated application, then automation is enabled, but dimensional fluctuations and corrosion susceptibility increase
Solution Approach 1:
The patent applies preliminary action by pre-forming the elastic adhesive strips with precise dimensions before application, eliminating dimensional fluctuations that occur with foam-in-place methods while maintaining automated application capability through strip feeding mechanisms
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 reliable, efficient, and cost-effective sealing solution that is easy to apply and reclose, ensuring high sealing performance and longevity, particularly suitable for battery modules, with the ability to withstand pressure and temperature variations.
Implementation Method 1
the elastic adhesive strip is compressed and it expands in the direction of the edge faces, with the effect that the first edge face of the first adhesive strip and the second edge face of the second adhesive strip are pressed against one another and seal off the sealing gap
Data Source
AI summary
Housing seals and methods seal off a housing interior from a housing exterior. The housing seals and methods comprise an elastic adhesive strip that is arranged between a first housing element and a second housing element, wherein the adhesive strip comprises a first end portion having a first edge face, and a second end portion having a second edge face, wherein the adhesive strip and is arranged between the first housing element and the second housing element in such a way that the first and second edge faces lie substantially in a plane, the adhesive strip is arranged between the first housing element and the second housing element in a closed circulation, and the first edge face of the adhesive strip is in contact with the second edge face of the adhesive strip and forms a sealing gap.