Motorcycle Battery Case Sub-Case Pre-Assembly
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Solution Overview
Problem
The existing battery case structure for motorcycles requires time and labor for mounting battery-related parts due to the need for individual connection and placement near the battery, complicating the assembly process.
Innovation Solution
A battery case structure with a sub-case that includes related parts mounting portions, allowing for pre-subassembly of parts like a relay and fuse box, which can then be easily integrated into the main unit, simplifying the mounting process and facilitating alignment and fastening during manufacturing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If battery-related parts are individually mounted in the battery case after battery installation, then the parts can be connected to the battery, but the mounting process requires significant time and labor
Solution Approach 1:
The sub-case is pre-assembled with all battery-related parts (relay, fuse, etc.) and their connections established before installation into the main battery case. This preliminary assembly eliminates the need for time-consuming individual mounting and wiring operations after battery installation, directly resolving the contradiction between manufacturing ease and assembly time loss.
2Length of moving object
If battery-related parts are disposed near the battery, then wiring length is reduced, but the mounting procedure becomes complex requiring individual placement and connection
Solution Approach 1:
Multiple battery-related parts (relay, fuse, and other electrical components) are merged into a single integrated sub-case structure that is pre-assembled as one unit. This merging allows all parts to be disposed near the battery in a compact arrangement while eliminating the complexity of individual mounting procedures, as the entire sub-case is installed as a single assembly.
3Weight of moving object
If the sub-case is disposed upwardly of the battery, then the center of gravity is lowered, but the space utilization requires careful planning
Solution Approach 1:
The sub-case is positioned in the vertical dimension upwardly of the battery rather than occupying horizontal space. This dimensional arrangement lowers the motorcycle's center of gravity by placing heavy components lower in the vehicle structure, while the available vertical space in the battery case accommodates the sub-case without compromising overall space utilization.
Data Source
AI summary
A battery case structure for a motorcycle can include a battery case for storing therein a battery to be mounted in a motorcycle, and a starter relay and a fuse box as related parts which can be connected to the battery. A starter relay mounting portion and a fuse box mounting portion in which the starter relay and the fuse box are disposed relative to the battery case are provided. A sub-case is disposed near the battery on an inside of a battery case main unit. The sub-case includes the starter relay mounting portion and the fuse box mounting portion.