Title:
ELECTRIC BICYCLE POWER CENTRALLY-ARRANGED TRANSMISSION ASSEMBLY
Document Type and Number:
WIPO Patent Application WO/2020/220398
Kind Code:
A1
Abstract:
An electric bicycle power centrally-arranged transmission assembly, comprising a motor (2) that a rotor shaft is arranged horizontally, a crankset (4) transmitting power to bicycle wheels, a central shaft (1) providing pedal power to the crankset (4), a sun gear (31) coaxially fitted over the central shaft in a floating mode, a planet carrier (33) in linkage with the central shaft, and a planet gear (32) arranged in the planet carrier (33) in a penetrating mode and engaged with the sun gear (31); wherein a rotor shaft (211) passes through a through hole of the centering of the rotor shaft and is coaxially fitted over the central shaft (1) in a floating mode, and the rotor shaft (211) is in linkage with the sun gear (31); and the crankset (4) is coaxially fitted over the central shaft (1) in a floating mode, and the crankset (4) is engaged with the planet gear (32) in a transmission mode by means of an inner gear (41); and the rotor shaft (211) drives the planet gear (32) to rotate and output, and the central shaft (1) changes rotation output of the planet gear (32) by rotating the planet carrier (33). The transmission assembly can greatly optimize a structural size and improve the transmission conversion rate. Meanwhile, by means of matching of different speed ratios, multi-form modes are achieved, and good feeling of user experience is improved.
Inventors:
MOU AIJUN (CN)
CAO YUNING (CN)
CAO YUNING (CN)
Application Number:
PCT/CN2019/086657
Publication Date:
November 05, 2020
Filing Date:
May 13, 2019
Export Citation:
Assignee:
DEPOWER ENERGY TECH CO LTD (CN)
International Classes:
B62M11/14; B62M6/40; B62M6/55; H02K7/10; H02K7/116
Foreign References:
| CN103944305A | 2014-07-23 | |||
| CN101856949A | 2010-10-13 | |||
| CN105305720A | 2016-02-03 | |||
| US20060287149A1 | 2006-12-21 | |||
| EP2957496A1 | 2015-12-23 |
Attorney, Agent or Firm:
SUZHOU CREATOR PATENT&TRADEMARK AGENCY LTD. (CN)
Download PDF: