Battery Module Casing Snap-Fit Sealing Without Screws
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Solution Overview
Problem
The existing battery module sealing process is inefficient and affects the appearance of the packing shell due to the use of screws.
Innovation Solution
A battery module design that uses a first and second casing body assembled together via a slot and latch mechanism, eliminating the need for screws and enhancing sealing efficiency with a first sealing ring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If screws are used to assemble the front cover and back cover, then the sealing function is achieved, but the appearance of the packing shell is affected and the sealing process efficiency is reduced
Solution Approach 1:
The patent removes the screw fastening elements from the sealing structure, extracting the harmful mechanical fastening method and replacing it with a snap-fit latch mechanism that integrates the sealing function directly into the casing structure, thereby improving both appearance and assembly efficiency
Solution Approach 2:
The patent combines the sealing ring integration with the latch mechanism, merging the fastening function and sealing function into a single integrated structure where the latch simultaneously secures the cover and compresses the sealing ring, eliminating separate fastening and sealing steps
2Reliability
If screws are used to assemble the front cover and back cover, then the sealing function is achieved, but the appearance of the packing shell is affected
Solution Approach 1:
The patent removes the visible screw fastening elements from the exterior of the packing shell, extracting the harmful visual impact while maintaining the sealing function through hidden latch mechanisms and integrated sealing rings that preserve the aesthetic appearance
Solution Approach 2:
The patent applies different structural qualities to different parts of the casing: the exterior surfaces maintain smooth, screw-free appearances while the interior structures incorporate latches and sealing rings at specific locations where functional requirements dictate, creating local functional zones without compromising overall appearance
3Reliability
If a traditional sealing process with screws is used, then the sealing function is achieved, but the assembly process becomes complex and time-consuming
Solution Approach 1:
The patent merges the fastening and sealing functions into a single integrated latch mechanism that simultaneously secures the cover and compresses the sealing ring, reducing the assembly process from multiple separate operations to a single snap-fit action
Solution Approach 2:
The patent segments the sealing ring into modular components that can be independently positioned and compressed by the latch mechanism, allowing for simplified assembly where each component performs its specific function without requiring complex alignment or multiple fastening steps
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 slot and latch assembly facilitates quick and convenient installation, improves production efficiency, and maintains the appearance of the casing by eliminating screws, while achieving effective sealing with a high compression degree of the first sealing ring.
Implementation Method 1
the latch is configured to be received in the slot, thereby locating the second cover plate on the first cover plate and compressing the first sealing ring
Data Source
AI summary
A battery module includes a battery module, which includes a battery unit and a casing for receiving the battery unit. The casing includes a first casing body, a second casing body assembled to the first casing body, and a first sealing ring disposed between the first casing body and the second casing body. The first casing body includes a first cover plate and first sidewalls connected to edges of the first cover plate. A slot is defined on outer surface of the first sidewalls. The second casing body includes a second cover plate and second sidewalls connected to edges of the second cover plate. A latch is disposed at inner surface of the second sidewalls, corresponding to the slot. The latch is configured to be received in the slot, locating and sealing the second cover plate on the first cover plate by compressing the first sealing ring.