Sealed Electrical Connection Assembly for Fluidtight Battery Modules
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current sealing methods for lithium-ion battery modules, particularly those immersion-cooled, are complex, expensive, and fail to prevent fluid circulation through electrical connection cables, hindering module disassembly and recycling.
Innovation Solution
An assembly for sealed electrical connections featuring a wall with grooves and seals, and electronic boards that compress seals to prevent fluid circulation, ensuring both internal and external sealing while allowing signal transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electronic connectors with potting resin are used for sealing, then sealing against fluid circulation from exterior to interior is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The sealing structure is divided into two independent grooves (first groove on exterior surface, second groove on interior surface) each housing separate seals. This segmentation allows each seal to independently prevent fluid circulation in one direction, simplifying the overall sealing mechanism while maintaining reliability.
Solution Approach 2:
The invention extracts and eliminates the need for potting resin by using mechanical seals housed in grooves. The seals are directly mounted in the wall structure, removing the complex potting process and reducing manufacturing steps while achieving the same sealing function.
2Reliability
If potting resin is added for sealing, then sealing against fluid circulation is improved, but ease of disassembly and recycling deteriorates
Solution Approach 1:
By dividing the sealing into two separate grooves with removable seals, the structure allows for disassembly. The seals can be extracted from their grooves without destroying the wall structure, enabling module recycling and repair that would be impossible with permanent potting resin.
3Ease of manufacture
If conventional sealing methods are used, then manufacturing simplicity is maintained, but fluid circulation through cables is not prevented
Solution Approach 1:
The electrical connector serves as an intermediary element that passes through the wall while maintaining sealing. The connector is integrated with the two-groove seal system, allowing electrical signal transmission while the seals prevent fluid circulation through the cable path.
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 effectively prevents fluid circulation between the interior and exterior of the battery module, maintaining sealing integrity and enabling efficient signal transmission, thus addressing the limitations of existing methods.
Implementation Method 1
a first electronic board adapted to be connected to the electrical connector and comprising at least a first sealing portion adapted to compress the first seal when the first electronic board is fixedly mounted on the first surface of the wall, so as to prevent the circulation of a fluid through the main orifice
Data Source
AI summary
The present disclosure relates to an assembly for a fluidtight electrical connection, including: a wall having a first surface and a second surface, a main orifice passing through the first surface and the second surface being formed in the wall, a first groove being formed in the first surface around the main orifice, a first seal suited to being housed in the first groove and a first electronic board including at least a first sealing portion designed to compress the first seal when the first electronic board is mounted fixedly on the first surface of the wall so as to prevent a fluid from passing through the main orifice from the first surface toward the second surface of the wall.