Battery Module Casing Latch Assembly for Screw-Free Sealing
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Solution Overview
Problem
The existing sealing process for battery modules is inefficient and affects the appearance of the packing shell due to the use of screws.
Innovation Solution
A battery module design featuring a casing with a first and second casing body, where a first sealing ring is compressed between the two bodies using a latch that slides into inclined slots, eliminating the need for screws and enhancing production efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If screws are used to assemble the front cover and back cover, then the sealing process is simple and reliable, but the production efficiency is low and the appearance is affected
Solution Approach 1:
The patent removes the screw fastening mechanism from the sealing process, extracting only the essential sealing function. The latch structure provides both sealing and positioning without requiring additional fastening components, thereby improving production efficiency while maintaining sealing reliability.
Solution Approach 2:
The patent combines the sealing function and the positioning function into a single integrated structure. The latch not only seals the battery module by compressing the sealing ring but also positions the cover plate, eliminating the need for separate screw fastening and improving manufacturing efficiency.
2Strength
If screws are used to assemble the casing, then the sealing is reliable, but the appearance of the packing shell is affected
Solution Approach 1:
The patent removes visible screw fastening elements from the exterior of the packing shell. The latch structure is designed to be concealed or minimally visible, providing reliable sealing without compromising the aesthetic appearance of the battery module housing.
3Productivity
If a latch mechanism is used instead of screws, then the assembly process is faster and appearance is improved, but the sealing complexity increases
Solution Approach 1:
The latch mechanism is divided into distinct functional segments: the latch body, the slot, and the sealing ring compression zone. This segmentation allows for simplified manufacturing and assembly while maintaining the overall functionality, reducing the perceived complexity despite the improved assembly speed.
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 convenient and fast assembly process, improving production efficiency while maintaining the appearance of the packing shell by ensuring a secure and effective seal without screws.
Implementation Method 1
a first sealing ring is disposed between the first casing body and the second casing body... 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.