Battery Pack Cover Fastening for Module Assembly Efficiency
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Solution Overview
Problem
The challenge is to create a battery pack that offers improved battery performance and manufacturing efficiency, capable of withstanding harsh vehicle environments and providing standardized, spatially efficient configurations for various vehicle types, while ensuring robust electrical and mechanical characteristics.
Innovation Solution
The battery pack incorporates a laminated structure of battery cells with a cover system featuring overlapping fastening parts and a case design that includes specific fastening members and extension structures, allowing for efficient assembly and standardization of battery modules, enhancing surface pressure and spatial utility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If battery modules are arranged adjacently in the lamination direction with overlapping fastening parts, then assembly efficiency and spatial utilization are improved, but manufacturing precision requirements increase
Solution Approach 1:
The cover is segmented into multiple battery module covers, each with its own fastening parts. This segmentation allows independent assembly of each battery module cover while maintaining overall alignment through the standardized fastening part designs, thus improving assembly efficiency without compromising manufacturing precision
Solution Approach 2:
The fastening parts are designed with universal features that can be consistently applied across all battery modules. The first and second fastening parts on adjacent battery module covers have corresponding through-holes and fastening members that follow a standardized pattern, enabling multi-functional reuse of the same fastening mechanism throughout the assembly, which improves both productivity and precision
2Adaptability or versatility
If a standardized battery module design is used for various vehicle types, then adaptability and manufacturing efficiency are improved, but device complexity increases to accommodate different configurations
Solution Approach 1:
The battery module cover design incorporates universal fastening parts that can be adapted to different vehicle types without changing the fundamental module structure. The first and second fastening parts with their corresponding through-holes and fastening members provide a standardized interface that maintains consistency across various configurations, reducing device complexity while improving adaptability
Solution Approach 2:
The battery pack system is segmented into standardized battery modules that can be independently configured for different vehicle types. Each module maintains its own cover with fastening parts, allowing flexible arrangement and combination while keeping individual module complexity low, thus achieving high adaptability without proportionally increasing overall device complexity
Data Source
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AI summary
A battery pack includes: a battery module assembly including a plurality of battery modules; and a case in which the battery module assembly is seated, wherein each battery module includes a laminated structure including a plurality of laminated battery cells and a cover disposed on a first side or a second side of the laminated structure and configured to cover the laminated structure, the cover includes a cover surface facing the laminated structure, and a first fastening part and a second fastening part, each the first and second fastening parts projecting in opposite directions and formed to project further than a side surface of the laminated structure from the cover surface in a direction in which the battery cells are laminated.