Stroller Frame Battery Layout for Access and Axle Protection
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Solution Overview
Problem
Existing stroller designs face challenges in simplifying the use and protection of batteries for motorized strollers, particularly when the battery is integrated within the axle, leading to complications in dimensioning, mounting, and handling.
Innovation Solution
A stroller frame design where the battery module is positioned at least partly outside and below the wheel connecting device, preferably below the upper end, ensuring easy access and protection, with a low center of gravity for stability and simple battery use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the battery is integrated inside the axle, then the battery is better protected, but dimensioning, mounting and handling of the battery become difficult
Solution Approach 1:
The battery system is segmented into a battery module that can be separated from the axle assembly. The battery module has a standardized interface that allows it to be detached and removed easily, solving the handling and mounting difficulties while maintaining protection when attached.
Solution Approach 2:
A standardized interface mechanism acts as an intermediary between the battery module and the axle. This interface enables easy attachment and detachment while providing secure connection and protection during operation, resolving the contradiction between ease of handling and protection.
2Ease of operation
If the battery is arranged outside the axle, then the battery can be reached easily for dismantling or replacement, but the battery is comparatively poorly protected
Solution Approach 1:
The battery module's position is made dynamic - it can be easily accessed and removed when needed, but when attached to the axle, it receives protection. The standardized interface allows the battery to transition between accessible and protected states as required.
3Stability of the object's composition
If the battery module is arranged below the upper end of the wheel connecting device, then a stable mounting and stable configuration of the stroller is achieved, but the battery arrangement becomes more complex
Solution Approach 1:
The standardized battery interface is designed to accommodate batteries in various positions (below the upper end, at different heights) while maintaining stable mounting. This universal interface simplifies the arrangement complexity by providing a standardized solution that works for different stability requirements.
Data Source
AI summary
Stroller frame comprising at least one electric motor, for assistively driving the stroller frame, at least one wheel connecting device, in particular wheel axle, and at least one battery module connected or connectable to the wheel connecting device, which in the assembled state is arranged at least partly outside the wheel connecting device and is arranged at least predominantly below a level of an upper end of the wheel connecting device or is arranged at least partly below the wheel connecting device.