Stand-On Mower Battery Layout for Stable Steering on Slopes
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing stand-on mowers face issues with shifting center of gravity due to heavy battery packs, leading to reduced steering flexibility and slope climbing stability, as the available mounting positions for the battery packs are limited by the electric motor and reduction box.
Innovation Solution
A stand-on mower design featuring a power supply device with multiple detachable battery packs positioned to optimize the distance ratio between the battery packs and the front and rear axles, allowing for better weight distribution and stability, with the option to detach battery packs for use in other power tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the battery pack is mounted to satisfy working requirements with sufficient power output, then the power supply capability is improved, but the center of gravity shifts forward reducing steering flexibility and slope climbing stability
Solution Approach 1:
The battery pack is divided into multiple individual battery units that can be independently mounted and positioned. This segmentation allows the total power requirement to be met while distributing the weight across multiple mounting positions, preventing excessive forward shift of the center of gravity and maintaining steering flexibility and slope climbing stability.
2Power
If the electric motor and reduction box are installed to provide sufficient torque, then the driving capability is improved, but the available mounting positions for the battery pack become limited
Solution Approach 1:
By segmenting the battery pack into multiple independent units, the system can accommodate various mounting configurations around the electric motor and reduction box. Each battery unit can be positioned in different locations, providing flexibility in adapting to the spatial constraints imposed by the motor and reduction box while still achieving the required power output.
Solution Approach 2:
The patent explores mounting battery packs in three-dimensional space around the electric motor and reduction box, not just in a single plane. This dimensional approach allows utilization of available space more effectively, providing multiple mounting positions that maintain both driving capability and battery mounting flexibility.
3Power
If the battery pack is made heavier to satisfy working requirements, then the power output is improved, but the steering flexibility and slope climbing stability are reduced
Solution Approach 1:
The battery pack is segmented into multiple lighter individual units rather than one heavy consolidated pack. This allows the total power output requirement to be met through multiple units while distributing the weight, thereby maintaining steering flexibility and slope climbing stability that would be compromised by a single heavy battery pack.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Provided is a stand-on mower. The stand-on mower includes: a mowing assembly including a mowing element for implementing a mowing function; a support portion configured to support a user; a central control mechanism including a station configured for the user to operate to control the stand-on mower; a traveling assembly including front traveling wheels and rear traveling wheels; a drive assembly including at least a first electric motor configured to drive the traveling assembly; and a power supply device configured to supply power to at least the first electric motor and including multiple battery packs, where at least one of the multiple battery packs is detachably mounted to a battery compartment. The ratio of the distance L1 between the power supply device and a front axle of the front traveling wheels to the distance L2 between the power supply device and a rear axle of the rear traveling wheels is greater than or equal to 0.15 and less than or equal to 2.