Spliced Battery Module Frame for High-Density Pack Assembly
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Solution Overview
Problem
Current single battery modules in electric apparatuses fail to meet energy demands while maintaining structural strength and manufacturability, leading to increased volume or multiple module combinations with poor production efficiency.
Innovation Solution
A battery module design featuring a frame with overlapping and splicing end plates allows for connection of multiple modules, maintaining appropriate volume and structural strength, with enhanced manufacturability and cost-effectiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the volume of a single battery module is increased to meet energy demand, then the energy density is improved, but the structural strength cannot meet the mechanical performance requirements
Solution Approach 1:
The battery system is divided into multiple modular units, each with appropriate volume and structural strength. The frame is segmented into side plates and end plates that can be independently optimized for mechanical performance while maintaining overall energy density through modular arrangement.
Solution Approach 2:
The frame employs composite structural design combining side plates and end plates with different geometric configurations. The overlapping platform and splicing portions create a composite structure that distributes mechanical loads effectively, ensuring both modules meet structural strength requirements while achieving target energy density.
2Quantity of substance
If multiple battery modules are produced and combined to meet energy demand, then the energy capacity is improved, but the manufacturability deteriorates
Solution Approach 1:
The frame design with standardized splicing portions and overlapping platforms enables universal applicability across multiple battery modules. The same frame structure can be used for single modules or combined into larger configurations, simplifying production processes and improving manufacturability while achieving required energy capacity.
Solution Approach 2:
The frame is pre-assembled with integrated side plates and end plates featuring predetermined splicing portions. This preliminary structuring allows modules to be easily combined during assembly without complex field modifications, enhancing manufacturability while enabling flexible energy capacity scaling.
3Quantity of substance
If the volume of a single battery module is increased to meet energy demand, then the energy density is improved, but the device complexity increases
Solution Approach 1:
The battery system is divided into multiple modular units, each with appropriate volume and structural strength. The frame is segmented into side plates and end plates that can be independently optimized for mechanical performance while maintaining overall energy density through modular arrangement.
Solution Approach 2:
Multiple battery modules with standardized frames are combined into a unified system through the splicing portions of end plates. This merging approach achieves high energy density at the system level while keeping individual module complexity low and manageable.
Data Source
AI summary
This application provides a battery module, a module combination, a battery pack, and an electric apparatus, where the battery module includes a battery module body and a frame for fastening the battery module body. The frame includes a first side plate, a second side plate, a first end plate, and a second end plate, where the first side plate and the second side plate are disposed opposite each other and located on two sides of the battery module body respectively, and the side plates both extend from the battery module body. The first end plate and the second end plate are disposed opposite each other and located at two ends of the battery module body respectively, and an end portion of the end plate has an overlapping platform and a splicing portion protruding from the overlapping platform.