Two-Axle Scooter Symmetrical Battery Stability
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Solution Overview
Problem
Current self-balancing scooters face issues with inflexible rotation, difficulty in controlling turns at high speeds, and safety risks due to asymmetrical battery placement without ventilation.
Innovation Solution
A two-axle vehicle balance scooter design featuring symmetrical battery placement, removable battery pack, and improved structural components such as silica gel pedals, pressure sensors, and a spring-connected shaft system for enhanced stability and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the battery pack is installed in a sealed state without ventilation, then the structural integrity is improved, but safety risk increases due to heat accumulation
Solution Approach 1:
The patent applies a flexible ventilation design by incorporating ventilation holes in the battery pack housing that allow air circulation while maintaining structural integrity. The housing uses thin film or flexible shell structures that can be sealed yet permit controlled ventilation for heat dissipation.
2Volume of moving object
If the battery pack is installed asymmetrically on one side, then space utilization is improved, but vehicle stability deteriorates
Solution Approach 1:
The patent deliberately uses asymmetric battery pack placement on one side of the vehicle body to create a specific center of gravity position. This asymmetric arrangement is compensated by the vehicle's low overall center of gravity design, achieving both space utilization and stability through controlled asymmetry rather than symmetric placement.
3Strength
If the intermediate shaft connection is rigid, then structural strength is improved, but rotation flexibility deteriorates during vehicle operation
Solution Approach 1:
The patent transitions from a rigid intermediate shaft connection to a dynamic connection system that allows rotational movement. The shaft connection incorporates movable joints or flexible coupling mechanisms that enable the shaft to rotate and adapt during vehicle operation, providing both structural strength and rotation flexibility through dynamic adjustment.
4Adaptability or versatility
If the shaft connection allows flexible rotation, then adaptability is improved, but control difficulty increases at high vehicle speeds
Solution Approach 1:
The patent controls the rotational flexibility of the shaft connection by changing physical parameters such as friction coefficients, joint stiffness, or damping characteristics. This allows the connection to be sufficiently flexible for normal operation but provides enough resistance or stability at high speeds to maintain control, achieving parameter-based adaptation rather than extreme flexibility.
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 design enhances stability, safety, and ease of operation by allowing symmetrical battery installation, quick removal, and improved ventilation, reducing transportation costs and risks.
Implementation Method 1
a metal bracket is connected with the upper housing and the lower end of the hardware support with a spring
Implementation Method 2
a pressure sensor sensing a pressure of the first foot on the first pedal
Data Source
AI summary
The two-axle vehicle balance scooter includes an upper shell, lower shell, pedal, pressure sensors, brackets, wheels, press block, shaft, chip, and battery pack. The brackets include a pedal bracket, hardware support, battery support and chip support. The press block includes a wheel pressure block and an axial compression block, from bottom to top on the housing gasket installed the pedal bracket and pedals. Both sides of the body are disposed around a middle section that is a battery holder below which a battery is installed. Accordingly, the scooter is symmetrical thus providing better stability, easier handling, easy installation and removal of a battery and other benefits.