GEARED HUB MOTOR FOR LIGHT ELECTRIC BICYCLE

WIPO Patent Application WO/2021/031696

A1

A geared hub motor for a light electric bicycle, comprising a main shaft (1), a hub (2), an end cover (3), a motor, and a planetary gear speed reduction mechanism. The motor is an axial magnetic field motor having a single rotor and single stator fixed shaft structure, and comprises a rotor assembly and a stator assembly. The rotor disc (4) in the rotor assembly is rollingly connected to the main shaft (1) by means of a bearing unit including an angular contact ball bearing and having two rows of rolling elements. The stator assembly comprises a plurality of stator cores (6) made of silicon steel, a stator yoke disc (7) made of silicon steel, and a stator tray (8). The stator cores (6) are connected to the stator yoke disc (7) by means of a tenon and mortise structure, or the stator cores (6) are connected to the stator yoke disc (7) and the stator tray (8) by means of a tenon and mortise structure, the stator yoke disc (7) is sleeved to the stator tray (8), and the stator tray (8) is fixedly connected to the main shaft (1). The motor has low costs, high efficiency, and a wide range of high efficiency, and can greatly increase the endurance mileage of an electric bicycle.

SUI HUAXING (CN)

PCT/CN2020/098421

February 25, 2021

June 28, 2020

Click for automatic bibliography generation  

SUI HUAXING (CN)

H02K21/24; F16H1/32; H02K1/14

CN111030332A	2020-04-17
CN102326317A	2012-01-18
CN110350749A	2019-10-18
CN111224527A	2020-06-02
US20110037335A1	2011-02-17
JP5515689B2	2014-06-11

NANJING HUAHENG INTELLECTUAL PROPERTY AGENCY OFFICE (GENERAL PARTNERSHIP) (CN)

View/Download PDF      PDF Help

Previous Patent: TERMINAL CONTROL METHOD AND TERMINAL

Next Patent: AXLE BOX STRUCTURE ALLOWING TURNERY WITHOUT UNMOUNTING WHEELS