Electric Skateboard Axle Buffering for High-Speed Stability
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Solution Overview
Problem
Electric skateboards face issues with motion instability and safety at high speeds due to factors like road conditions, wind direction, and structural design, leading to risks such as sideslip and rollover, with existing suspension systems having short service life and insufficient stability.
Innovation Solution
A stable front and rear axle assembly with buffering mechanisms, including a damper assembly and restorer assembly, to provide rotational connections and adjustable damping for enhanced stability and safety during movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If a light car body design is used, then the skateboard is easier to maneuver and less material is used, but the stability and anti-sideslip/rollover performance deteriorates at high speed
Solution Approach 1:
The patent introduces a counterweight component that rotates with the bridge arm during steering. This counterweight is positioned to generate a stabilizing moment that counteracts the rollover tendency caused by the light car body design. When the bridge arm rotates, the counterweight rotates in the opposite direction, creating a gyroscopic effect and moment of inertia that resists sudden lateral movements and enhances high-speed stability.
2Ease of operation
If many connection points are used in the suspension structure, then the comfort is improved, but the service life and stability deteriorate due to increased complexity
Solution Approach 1:
The patent merges the suspension function and steering function into a single integrated bridge arm structure. Instead of separate suspension links and steering knuckles with multiple connection points, the bridge arm itself performs both functions - it suspends the wheel assembly and enables steering rotation. This reduction in the number of parts and connection points eliminates weak links while maintaining comfort through the bridge arm's controlled rotation and the counterweight's stabilizing effect.
3Device complexity
If a simple axle assembly structure is used, then the device complexity is reduced, but the stability and safety during movement deteriorates
Solution Approach 1:
The axle assembly incorporates a counterweight component that rotates with the bridge arm during steering operations. This counterweight generates a stabilizing moment that counteracts the light car body's tendency to sideslip and rollover at high speeds, thereby enhancing movement stability without significantly increasing structural complexity.
Solution Approach 2:
The axle assembly employs a dynamic bridge arm structure that can rotate relative to the main board body, allowing the system to adapt to road conditions and maintain stability. The rotatable connection between the bridge arm and main board body enables the axle assembly to dynamically adjust its position and orientation in response to external forces.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enhances the stability and safety of electric skateboards by providing robust axle assemblies with adjustable damping, ensuring smooth operation and reducing the risk of accidents at high speeds.
Implementation Method 1
the restorer assembly includes a restorer fixing assembly and at least one elastic member; two ends of the elastic member are pressed against two ends of the restorer fixing component
Implementation Method 2
the damper assembly is provided with a damper push rod and a damper shell which can slide on the damper push rod
Data Source
AI summary
An electric skateboard comprises a main board body, a front axle assembly, a rear axle assembly, a buffering device, a moving device and an electric control device, wherein the electric control device is electrically connected with the front axle assembly and the rear axle assembly, the moving device supports and moves the skateboard, and the buffering mechanism is operatively connected to the main board body and the moving device, and provides buffering for the movement of the skateboard when the skateboard is in a moving state.