Battery Module Shaft Jig for Assembly Alignment
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Solution Overview
Problem
The complex fastening operation required for assembling battery modules into a battery assembly is inconvenient and time-consuming, making the production process cumbersome.
Innovation Solution
A battery module design that incorporates a shaft member with a length allowing protrusion from the housing and cover, which doubles as a jig for assembly, and a locking mechanism that simplifies the insertion and locking of the cell unit, housing, and cover, allowing for easier stacking and support of multiple modules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional separate fastening components and collars are used for assembling battery modules, then reliable mechanical connection is achieved, but the assembly process becomes complicated and time-consuming
Solution Approach 1:
The shaft member integrates multiple functions: it serves as both the fastening component (replacing separate fasteners and collars) and as a positioning element. The shaft member combines the functions of traditional separate fastening components and collars into a single integrated element, simplifying the assembly process while maintaining reliable mechanical connection between battery modules
Solution Approach 2:
The shaft member is designed as a multi-functional component that performs both fastening and positioning operations simultaneously. It replaces multiple specialized components with a single universal element that can be inserted through aligned holes in the cell unit, housing, and cover, providing both mechanical connection and alignment functions
2Ease of manufacture
If multiple separate components are used for battery module assembly, then functional requirements are met, but the number of parts increases and production complexity increases
Solution Approach 1:
The invention merges multiple separate parts (fastening components and collars) into a single shaft member. This integration reduces the quantity of parts that need to be manufactured, stored, and assembled, while still meeting all functional requirements for mechanical connection and positioning of battery modules
Solution Approach 2:
The shaft member is designed with specific segmented features including protrusions that fit into corresponding recesses in the battery module housing. This segmentation allows the single shaft member to perform multiple functions that previously required separate components, maintaining functional complexity while reducing part quantity
Data Source
AI summary
The invention provides a battery module, which forms an item unit for construction of a battery assembly, comprising a cell unit having a plurality of cells, and a housing and a cover to store the cell unit. The battery module further comprises a shaft member inserted into a through-hole provided in the cell unit and a through-hole provided in the housing and a through-hole provided in the cover, wherein the shaft member comprises a length that allows protrusion from each of the housing and the cover. Furthermore, during construction of the battery module, the shaft member doubles as a jig for insertion of the cover, the cell unit, and the housing in said order for each of the modules within the battery assembly.