Resilient Handle Mechanism for Self-Balancing Scooter Direction Control
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Solution Overview
Problem
Current self-balancing electrical scooters face issues with control operation in the left-right direction, difficult starting mechanisms, poor wheel connection to the scooter body, non-foldable handles, and complex motor shaft connections leading to unstable running.
Innovation Solution
A resilient recoverable component with a stator and rotor connected via a rubber unit between the scooter body and handle for improved directional control, a signal sensing device for safe startup, a flange nut and crescent unit for secure wheel attachment, a foldable handle mechanism, and a simplified motor shaft connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a direct connection structure between the handle and the scooter body is used, then the control operation in the left-right direction is influenced, but the structural complexity increases
Solution Approach 1:
A resilient recoverable component is introduced as an intermediary element between the handle and the scooter body. This component includes a stator connected to the scooter body, a rotor connected to the handle, and a resilient recoverable unit connecting the stator and rotor. The mediator allows smooth control operation while reducing the direct structural connection complexity.
Solution Approach 2:
The connection structure transitions from a rigid direct connection to a flexible connection with resilient properties. The resilient recoverable unit changes the mechanical parameters of the connection, allowing for elastic deformation and recovery, which improves control operation smoothness while simplifying the overall structure.
2Device complexity
If the operation switch is configured on the handle and the scooter starts immediately after turning on, then the starting mechanism is simple, but the safety risk increases due to unbalanced status
Solution Approach 1:
Before the scooter begins moving, the system performs preliminary balancing adjustments. When the operation switch is activated, the resilient recoverable component automatically adjusts the handle position to ensure the scooter body is in a balanced state before starting motion, eliminating the safety risk of starting in an unbalanced status.
Solution Approach 2:
The system incorporates automatic balancing feedback control. The resilient recoverable component provides real-time feedback on the handle position and scooter body balance status, automatically adjusting the system state to maintain balance during the startup process, ensuring safety without complicating the starting mechanism.
3Device complexity
If the handle is made non-foldable, then the connection structure is simple, but the space efficiency and portability decrease
Solution Approach 1:
The handle structure transitions from a fixed rigid structure to a dynamic foldable structure. The resilient recoverable component enables the handle to flex and fold without compromising the connection integrity, allowing the handle to be collapsed for compact storage while maintaining structural simplicity through the resilient connection mechanism.
4Strength
If a complex connection structure between the motor shaft and the wheels is used, then the connection strength is improved, but the running stability decreases
Solution Approach 1:
The complex intermediate connection structures are extracted and removed from the motor shaft to wheel connection. The design directly connects the motor shaft to the wheel hub through simplified mounting holes and fixing structures, eliminating unnecessary intermediate components that caused instability while maintaining adequate connection strength for the application.
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
Enhances controllability, safety during startup, stability, space efficiency, and ease of use by addressing the mentioned issues, providing a more reliable and user-friendly self-balancing scooter experience.
Implementation Method 1
the stator and the rotor are connected in a resilient manner via the resilient recoverable unit... when the external force disappears, the rotor returns to its original status under an elastic recovery force of the resilient recoverable unit
Data Source
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AI summary
A self-balancing double-wheeled electrical scooter is provided with an assembly for controlling a travel direction of the self-balancing double-wheeled electrical scooter, wherein, the travel direction of the self-balancing double-wheeled electrical scooter is controlled via a handle, a resilient recoverable component is provided between a scooter body and the handle, the handle is adapted for driving the resilient recoverable component to control the travel direction of the scooter, the resilient recoverable component comprises a stator (101), a rotor (112) and a resilient recoverable unit (111), the rotor (112) is mechanically connected to the handle in a fixed manner directly or indirectly, the stator (101) is mechanically connected to the scooter body (107) in a fixed manner directly or indirectly, the stator (101) and the rotor (112) are connected in a resilient manner via the resilient recoverable unit, the resilient recoverable component further comprises an angle limiting device, the angle limiting device comprises a limiting cover (103) and a limiting pin (105), the limiting cover (103) is mechanically connected to the stator (101) in a fixed manner directly or indirectly, a limiting hole is provided on the limiting cover (103), the limiting pin (105) is mechanically connected to the rotor (112) in a fixed manner directly or indirectly, and the rotation of the rotor (112) causes the limiting pin (105) to rotate within a certain angle range inside the limiting hole on the limiting cover (103).