Battery Block Shaft-and-Lid Assembly for Faster Pack Fixing
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Solution Overview
Problem
Existing power source devices with battery blocks connected in series or parallel require time-consuming and labor-intensive methods for mounting shafts and fixing battery blocks, leading to increased work hours and potential damage from external forces.
Innovation Solution
The power source device incorporates battery blocks with holder through-holes, aligned shafts with screw threads, and an outer case with lids, where the shafts pass through the battery blocks to form a core block, which is then securely fixed within the outer case using screws and seals, reducing individual block fixing time and enhancing stability against external forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If battery blocks are fixed individually by fastening shaft and nut, then each battery block can be securely connected, but the work time and labor hours increase significantly
Solution Approach 1:
The patent merges multiple individual fixing operations into a single integrated fixing operation. By providing a common fixing member (lid) that simultaneously connects multiple battery blocks through through-holes, the invention eliminates the need to individually fasten each battery block pair, thereby reducing work time while maintaining secure connections.
Solution Approach 2:
The invention incorporates through-holes in advance during battery block manufacturing, allowing shafts to be inserted and fixed simultaneously for multiple blocks. This preliminary preparation of alignment features enables efficient batch fixing rather than sequential individual fixing.
2Ease of manufacture
If direct screwing method is used to fix battery blocks, then the connection process is simplified, but work hours increase proportionally with the number of battery blocks
Solution Approach 1:
The common lid serves as a merging structure that combines multiple fixing operations into one. Instead of performing separate screwing operations for each battery block pair, the lid is installed once to secure all blocks simultaneously, simplifying the manufacturing process while improving productivity.
Solution Approach 2:
The lid performs multiple functions: it serves as both the fixing member for multiple battery blocks and as a structural component of the power source device housing. This multi-functionality reduces the total number of parts and assembly steps, enhancing both ease of manufacture and productivity.
3Quantity of substance
If multiple battery blocks are connected in series or parallel, then the power source capacity increases, but the complexity of assembly and fixing increases
Solution Approach 1:
The invention segments the battery system into modular battery blocks that can be connected in series or parallel configurations. Each block is self-contained with standardized through-holes, allowing scalable assembly without proportionally increasing complexity. The common lid provides a unified fixing mechanism that works regardless of the number or arrangement of blocks.
Solution Approach 2:
The common lid and through-hole design create a universal fixing system that accommodates any number of battery blocks in various configurations (series, parallel, or combinations). This standardized interface eliminates the need for different fixing methods for different block arrangements, reducing assembly complexity despite increased system capacity.
Data Source
AI summary
A power source device includes battery blocks each of which has holder through-holes therein, shafts inserted in the holder through-holes of each battery block, respectively, such that the holder through-holes in each battery block are aligned to holder through-holes in another battery block of the battery blocks connected to one another in a connecting direction, an outer case accommodating the battery blocks therein, the outer case having a tubular shape with both ends opening, a first lid closing a first open end of the outer case, and a second lid closing a second open end of the outer case. The shafts have screw threads at least at respective tips thereof. The first lid is fixed with the screw threads of the plurality of shafts such that the plurality of shafts are inserted in the plurality of holder through-holes of the each of the plurality of battery blocks, respectively, in a core block including the battery blocks connected in the connecting direction.