Antriebssystem für ein Elektrofahrrad

Details

Veröffentlichungs-Nr.

EP4600135

Aktenzeichen

EP24204725

Anmeldetag

4. Oktober 2024

Veröffentlichung

13. August 2025

Rechtsraum

EP

IPC

B62M6/40B62M11/02// B62M6/60

Abstract

A drive system for an electric bicycle is disclosed, which includes: a motor (200) providing a rotational force to a driving wheel; a battery (300) supplying power to the motor (200); and an alternator (400) providing a pedal reaction force to a driver, and converting kinetic energy of a pedal into electric energy, and supplying the electric energy to at least any one of the motor (200) and the battery (300), wherein the alternator (400) includes a housing (410), a crank shaft (420) installed to penetrate the housing (410), and having the petal installed therein, a gear unit (430) installed inside the housing (410), and speed-increasing or speed-decreasing the rotational force of the pedal, an alternation unit (440) installed inside the housing (410), and receiving the rotational force of the pedal speed-increased or speed-decreased by the gear unit (430), and generating the electric energy, an elastic member (460) installed between the housing (410) and the gear unit (430), and elastically supporting the housing (410) and the gear unit (430), and a frictional member (450) which is installed in the housing (410) to maintain a predetermined gap from the gear unit (430), and in which some components of the gear unit (430) contact by moving in an axial direction when a pedal effort larger than a limited reaction force which is a peak value of the pedal reaction force provided by the alternator (400) is input.

Anmelder

Firma

HL Mando Corporation

Land

🇰🇷 Südkorea

Fachgebiete