Modular Battery Enclosure with Arched Floorboard for Micro-Mobility
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Solution Overview
Problem
Servicing a large fleet of micro-mobility vehicles, such as electric kick scooters and bicycles, is burdensome for fleet managers due to high capital investment and labor costs, particularly in dynamic transportation systems where quick servicing and maintenance are necessary to keep vehicles operational.
Innovation Solution
The development of modular battery assemblies with retention interfaces that securely attach to a subframe assembly, allowing for easy replacement and integration of battery cell assemblies with moisture-sealing enclosures and arched floorboard panels, reducing the need for separate structural elements and facilitating efficient battery replacement and monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional battery systems are used in micro-mobility fleet vehicles, then the vehicles can operate, but servicing and maintenance become burdensome with high capital investment and labor costs
Solution Approach 1:
The battery system is divided into modular battery assemblies that can be independently removed and replaced. Each battery assembly is a self-contained unit with standardized interfaces, allowing rapid servicing without disassembling the entire vehicle system.
Solution Approach 2:
The battery assembly enclosure serves multiple functions: it houses the battery cells, provides structural support as part of the vehicle frame, offers moisture protection through sealing, and includes retention interfaces for secure mounting. This multi-functionality reduces the number of separate components needed.
2Reliability
If battery assemblies are made secure and integrated, then reliability improves, but ease of repair and replacement deteriorates
Solution Approach 1:
Retention interfaces are pre-configured on the battery assembly enclosure before installation into the vehicle. These interfaces are designed to automatically engage with corresponding features on the vehicle frame, ensuring secure mounting while allowing tool-free removal when needed.
Solution Approach 2:
The retention interface acts as an intermediary mechanism between the battery assembly and the vehicle frame. It provides a standardized connection point that ensures reliable securing during operation while enabling quick release for maintenance, bridging the conflict between security and ease of repair.
3Adaptability or versatility
If separate structural elements are used for battery housing and floorboard, then functional requirements are met, but device complexity and resource utilization increase
Solution Approach 1:
The battery assembly enclosure is merged with the vehicle floorboard structure. The same enclosure that houses and protects the battery cells also serves as the floorboard surface for rider placement, eliminating the need for separate structural elements and reducing overall system complexity.
Solution Approach 2:
The enclosure lid is designed to provide both moisture sealing for the battery compartment and a weight-bearing floorboard surface. This universal component fulfills multiple functional requirements simultaneously, reducing the total number of parts needed in the system.
4Ease of repair
If modular battery assemblies are implemented, then ease of repair and servicing improves, but manufacturing complexity increases
Solution Approach 1:
The battery system is segmented into standardized modular assemblies that can be manufactured independently and then integrated into vehicles. This segmentation allows for specialized manufacturing processes for each module while simplifying the final assembly process through standardized interfaces.
Solution Approach 2:
The modular battery assemblies are designed with standardized geometric parameters and interface dimensions. By establishing fixed parameters for enclosure size, retention interface locations, and electrical connections, the manufacturing process becomes more predictable and scalable, offsetting the complexity of modular production.
Data Source
AI summary
Techniques are disclosed for systems and methods to provide modular battery assemblies for micro-mobility fleet vehicles. A modular battery assembly for a micro-mobility fleet vehicle includes a battery assembly enclosure including an assembly retention interface configured to physically secure the assembly enclosure to a subframe assembly of the micro-mobility fleet vehicle, a battery cell assembly disposed within the battery assembly enclosure, and an enclosure lid mounted to the assembly enclosure. The modular battery assembly may include an arched floorboard panel configured to provide a floor board surface for the micro-mobility fleet vehicle. The battery cell assembly may include a honeycomb battery cell holder and a collector board atop the battery cell holder to provide wire bond interconnects between the battery cells.