A drive unit for an electric bicycle, the drive unit including a motor configured to generate a rotary force to drive a wheel of the electric bicycle, and a reduction gear unit provided with a plurality of gears to decelerate a rotary force generated from the motor, wherein the motor is provided with a rotor (501) which has an accommodation space formed at a center thereof and a stator (506) installed to surround the rotor (501) while being spaced apart from the rotor (501) by a predetermined interval, and the reduction gear unit includes a first planet gear assembly (510) disposed on an accommodation space inside the motor (500) and connected to the rotor (501), and a second planet gear assembly (520) disposed outside the motor (500) and connected to the first planet gear assembly (510).
Drive unit for electric bicycle
Antriebseinheit für ein elektrische Fahrräder
Unité de traction pour bicyclette électrique
2015-06-03
Patent
Electronic Resource
English
IPC: | B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer |
European Patent Office | 2022
|