Asymmetrical Coupling in Battery Module End Plates
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Solution Overview
Problem
Existing battery modules and packs face challenges in efficiently utilizing space, particularly in compact designs required for applications like electric vehicles, where high power consumption demands a larger output voltage or current, and existing solutions do not effectively optimize space for such configurations.
Innovation Solution
The design incorporates a battery module with asymmetrical coupling members, including bolts and nuts, to securely connect end plates and side plates in a compact manner, allowing for efficient stacking and arrangement of battery units, thereby increasing space utilization and enabling a more compact battery pack configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If battery units are arranged in a conventional symmetrical configuration, then the structural design is simple and easy to manufacture, but the space utilization is inefficient and the battery pack cannot be compactly mounted in limited spaces
Solution Approach 1:
The patent applies asymmetry by configuring coupling members at different positions on opposite end plates. Specifically, the first coupling member is positioned at a first position on a first end plate, while the second coupling member is positioned at a second position on a second end plate, where the positions are asymmetric relative to each other. This asymmetric arrangement enables more efficient space utilization and compact mounting of the battery pack in limited spaces, while maintaining structural integrity and ease of assembly.
2Volume of moving object
If the battery pack is designed to be compact for limited space mounting, then space efficiency is improved, but the structural complexity increases making manufacturing more difficult
Solution Approach 1:
The asymmetric coupling member arrangement enables compact battery pack design while maintaining ease of manufacture. The specific configuration where coupling members are positioned at different locations on opposite end plates allows for optimized space utilization without requiring complex assembly procedures. The asymmetry is deliberately designed to achieve compact dimensions while keeping the manufacturing process straightforward.
3Power
If high power consumption applications require increased output voltage or current, then the power capability is improved, but the battery pack requires larger dimensions that cannot fit in limited spaces
Solution Approach 1:
The asymmetric coupling member configuration enables the battery pack to achieve high power capability through optimized arrangement of battery units while maintaining a compact form factor. The asymmetric design allows for efficient stacking and arrangement of multiple battery units to achieve the required output voltage or current without proportionally increasing the overall pack volume, thus fitting within limited spaces.
Data Source
AI summary
A battery module and battery pack, the battery module including a pair of end plates facing each other; a plurality of battery units arranged in a first direction between the end plates; a first side plate extending along a first side of the plurality of battery units, the first side plate being coupled to the end plates; a second side plate extending along a second side of the plurality of battery units, the second side plate being coupled to the end plates and being disposed opposite to the first side plate; a first coupling member, the first coupling member coupling the end plates to the first side plate; and a second coupling member, the second coupling member coupling the end plates to the second side plate, wherein the first coupling member and the second coupling member are disposed in asymmetrical positions with respect to a central line of the end plates.