Dual Swappable Battery System for Electric Mobility Devices
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Solution Overview
Problem
Electric personal mobility device sharing systems face challenges with battery charging, as consumer-based charging can be hazardous and inefficient, limiting the number of rides per day and increasing operational costs, and existing solutions do not allow for easy and secure battery swapping.
Innovation Solution
An electric personal mobility device with a dual swappable battery configuration, featuring a secure and waterproof design that allows for quick battery replacement without tools, ensuring safety and efficiency, and a battery charging station for fast charging of standalone batteries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If batteries are fixedly secured to the platform by bolts and nuts, then battery stability is improved, but battery replaceability deteriorates
Solution Approach 1:
The battery system is segmented into modular battery packs that can be independently removed and replaced. The battery pack includes a battery module housed in a casing with integrated mounting features, separating the battery from the platform while maintaining secure attachment during operation.
Solution Approach 2:
The battery module is nested within a battery pack casing that contains mounting brackets and fastening mechanisms. This nested structure allows the battery to be securely held within the pack while the entire pack can be quickly attached to or detached from the platform.
2Adaptability or versatility
If consumer-based charging is used, then operational flexibility is improved, but safety deteriorates
Solution Approach 1:
The battery is extracted from the platform as a removable pack, allowing it to be charged separately at dedicated charging stations rather than requiring on-platform charging. This separates the charging function from the mobility function, improving safety while maintaining operational flexibility.
Solution Approach 2:
Dedicated charging stations serve as intermediaries between the battery packs and the power grid. These stations provide controlled, safe charging environments with proper electrical connections and monitoring, replacing direct consumer-based charging while maintaining operational flexibility.
3Device complexity
If traditional charging methods are used, then infrastructure simplicity is improved, but productivity deteriorates
Solution Approach 1:
Battery packs are pre-charged at dedicated charging stations before being deployed to platforms. This preliminary charging action ensures that batteries are ready for immediate use, reducing downtime and increasing the number of rides per day while maintaining relatively simple infrastructure.
Data Source
Figure 1A~1B
Figure 2A~2D
Figure 3A~3B
AI summary
A electric personal mobility device may include a main body including a rider-support-platform structure and a steering column coupled to the rider-support-platform structure. The electric personal mobility device may further include a wheel arrangement, having at least one front wheel and at least one rear wheel, supporting the main body. The at least one front wheel may be steerable by the steering column. According to various embodiments, the rider-support-platform structure may include an elongate hollow housing structure enclosing an internal space partitioned to define a first and second longitudinal-internal-battery-compartments. Each longitudinal-internal-battery-compartment may be extending lengthwise along respective longitudinal side of the elongate hollow housing and having a respective rear opening at an aft portion of the elongate hollow housing structure. The rider-support-platform structure may include a rear-wheel-fork fixedly extending longitudinally from the aft portion between the rear openings. The rear-wheel-fork may be holding the at least one rear wheel.