Motorized Drive Unit for In-Line Skates with Regeneration
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Solution Overview
Problem
Existing motorized in-line skates require skill to operate efficiently and safely, and existing solutions are complex with multiple mechanical components that increase complexity and reduce ride performance.
Innovation Solution
A driving unit for in-line skates comprising a motor, transmission gear, and transmission belt that distributes rotational power to multiple roller wheels, with a regeneration unit for recharging batteries and a clutch mechanism to reduce wheel rotation, simplifying mechanical constraints and enhancing ride performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If motorized drive unit is added to in-line skates, then driving efficiency and safety are improved, but device complexity increases
Solution Approach 1:
The patent combines the motor, transmission gear, transmission belt, and roller wheels into an integrated driving unit that is coupled to the in-line skate system. This merging of components into a unified assembly reduces the number of separate parts and simplifies the overall structure while maintaining the motorized driving function.
Solution Approach 2:
The transmission belt serves multiple functions: it transfers driving power from the motor to the roller wheels during normal operation, and it also enables regeneration mode where the belt transfers torque back to the motor for battery recharging. This multi-functionality reduces the need for separate mechanisms for different operating modes.
2Power
If multiple mechanical components are used for power transmission, then driving power can be distributed to roller wheels, but mechanical complexity increases and ride performance decreases
Solution Approach 1:
The patent replaces complex multi-stage gear transmissions with a simpler direct coupling system where the motor is directly coupled to the transmission gear, which is then connected to the roller wheels via a transmission belt. This substitution eliminates intermediate transmission stages while maintaining effective power distribution to multiple wheels.
3Use of energy by moving object
If regeneration unit is added for battery recharging, then energy efficiency is improved, but device complexity increases
Solution Approach 1:
The motor and transmission gear serve dual functions: they provide driving power to the roller wheels during normal operation, and they also function as a regeneration unit during recovery mode where they convert kinetic energy back to electrical energy for battery recharging. This eliminates the need for a separate regeneration mechanism.
Solution Approach 2:
The system enables self-recharging through the regeneration unit that captures energy during deceleration or downhill motion and converts it back to electrical energy, allowing the battery to recharge itself without external intervention. This self-service capability improves energy efficiency while adding minimal complexity.
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 enables efficient and safe operation of in-line skates by distributing rotational load, reducing mechanical complexity, and allowing for battery regeneration, thereby improving ride performance and user experience.
Implementation Method 1
a motor configured to generate a driving power
Implementation Method 2
a transmission belt interconnecting the transmission gear and the two or more roller wheels to transfer the driving power to the roller wheel
Implementation Method 3
a regeneration unit, which recharges a battery in a regeneration mode initiated when the roller wheels rotate in a speed higher than the wheel rotation speed provided by the driving unit
Data Source
AI summary
According to an aspect of some embodiments of the present invention there is provided a driving unit for an in-line skate system having roller wheels, the driving unit has a motor configured to generate a driving power, a transmission gear coupled to the motor, and a transmission belt interconnecting the transmission gear and the two or more roller wheels to transfer the driving power to the roller wheel. According to an aspect of some embodiments of the present invention there is provided an in-line skate system, comprising one or more in-line skates and a driving unit.