Chain ring-drive for electro-motor aiding of muscle force of electrical bicycle, has motor mechanically connected with chain ring, where force guidance is implemented by motor directly inside chain ring in transmission less manner

摘要

The drive has an electrical motor (1) mechanically connected with a chain ring (4), where force guidance is implemented by a motor directly inside a chain ring in a transmission less manner. The electrical motor is designed as a disk-external runner, whose stator is mechanically connected with a rear vehicle (8) and a rotor is connected with the chain ring. The rotor and the chain ring represent a separable and stable component that is supported at a bottom bracket (9) of a vehicle frame (6), where the component considers a standard-chain line.