Front-Drive Wheel Hub With Pedal Backup for Electric Tricycles
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Solution Overview
Problem
Front-wheel drive electric tricycles are unable to operate without a power supply, necessitating manual pushing when electricity is depleted.
Innovation Solution
Integration of an iron core assembly connected to an electronic control system with a pedal mechanism at the ends of a rotating shaft, allowing both electric and pedal-driven operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the electric tricycle uses only electric power supply for operation, then the structure is simple and cost-effective, but the tricycle cannot operate when power is depleted and requires manual pushing
Solution Approach 1:
The front wheel hub is designed to perform multiple functions: it serves as both an electric motor hub when powered and a pedal-driven hub when unpowered. The pedal mechanisms are integrated directly into the hub structure, allowing the same component to operate in two different modes without requiring separate drive systems.
Solution Approach 2:
The patent combines the electric motor drive system and the pedal-driven mechanism into a single integrated hub assembly. The iron core assembly, rotating shaft, and pedal mechanisms are merged into one compact structure, eliminating the need for separate electric and mechanical drive systems.
2Adaptability or versatility
If pedal mechanisms are added to enable operation without power, then the tricycle can operate in both electric and manual modes, but the device complexity increases
Solution Approach 1:
The pedal mechanisms are nested within the hub structure itself. The rotating shaft extends through the iron core assembly, and the pedal mechanisms are positioned at both ends of the rotating shaft inside the hub, creating a compact nested arrangement where the pedal system is contained within the motor hub.
Solution Approach 2:
The hub assembly is segmented into distinct functional components: the iron core assembly for electric drive, the rotating shaft for power transmission, and the pedal mechanisms for manual drive. Each segment is independently designed but integrated through the shared rotating shaft and hub structure.
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
Enables flexible operation with electric power or pedal driving, eliminating the need for manual pushing in powerless conditions.
Implementation Method 1
the one-way driving mechanism is a one-way bearing or a freewheel
Data Source
AI summary
A front-drive wheel and an electric tricycle are disclosed. The front-drive wheel comprises: a hub and an iron core assembly disposed within the hub, wherein the iron core assembly is connected to an electronic control system in the front fork assembly, a rotating shaft extends through the iron core assembly, with both ends respectively extending to opposite axial sides of the hub. A pedal mechanism is positioned at both ends of the rotating shaft. In the aforementioned front-drive wheel, the iron core assembly is arranged inside the hub to meet the requirements for electric driving. Meanwhile, pedal mechanisms are provided at both opposite ends of the rotating shaft, thereby enabling manual riding in the absence of electrical power. As a result, the front-drive wheel of the present application offers two driving modes, enhancing operational flexibility.