Novel hub power device and electric bicycle

A power unit and wheel hub technology, which is applied to wheel transmissions, electromechanical devices, electric components, etc., can solve the problems of small output torque, large volume, and difficult climbing, and achieve large transmission ratio, small structural volume, and safety factor. high effect

Pending Publication Date: 2019-07-19
M& SE DRIVING SYST CO LTD
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the wheel hub power devices of electric bicycles on the market are mainly divided into two categories, direct drive power devices and traditional toothed power devices; wherein, the disadvantages of the direct drive power devices are large volume, small output torque, and difficult climbing. Large loads are easy to burn out; although the torque of the traditional toothed power unit has been improved compared with the direct drive motor, the volume is still large and affects the appearance
Moreover, in order to achieve a larger transmission ratio of gear transmission, the existing power unit (mot

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Novel hub power device and electric bicycle
  • Novel hub power device and electric bicycle
  • Novel hub power device and electric bicycle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0037] This embodiment proposes a novel hub power device, such as figure 1 As shown, the device includes a motor mechanism 1, a central shaft 2, a gear mechanism 3 and an external housing 4; specifically, as figure 2 As shown, the motor mechanism 1, the central shaft 2, and the gear mechanism 3 are all located in the outer casing 4, and the central shaft 2 is a fixed shaft, and the motor mechanism 1 and the gear mechanism 3 are sleeved on the outer casing 4. on the central axis 2;

[0038] Such as figure 2As shown, the gear mechanism 3 includes a hollow shaft sleeve 31, a one-way clutch 32, a sun gear 33, and a double planetary gear 34 that are arranged outwardly on the central shaft 2 in sequence; and one end of the hollow shaft sleeve 31 It is fixedly connected with the motor mechanism 1, and the other end of the hollow shaft sleeve 31 is in interference fit with the inner ring of the one-way clutch 32; the outer ring of the one-way clutch 32 is in contact with the inner...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a novel hub power device and an electric bicycle. The novel hub power device comprises a motor mechanism, a central shaft, a gear mechanism and an outer shell; the gear mechanism comprises a hollow shaft sleeve, a one-way clutch, a sun gear and a duplex planetary gear which are sequentially arranged on the central shaft outwards in a sleeving mode; the gear mechanism further comprises a planet carrier assembly and a gear ring assembly; the planet carrier assembly comprises a left planet carrier and a right planet carrier which are fixedly connected; the gear ring assembly comprises a left gear ring and a right gear ring, and the left gear ring and the right gear ring are meshed with the duplex planetary gear in the middle of the outer side of the duplex planetary gear; the left gear ring is fixed to the outer shell, and the right gear ring is connected with the central shaft through an auxiliary piece. The power device has a small structural size and can achievea larger transmission ratio; and the central shaft is of a whole-shaft structure, so that the strength of the central shaft (fixed shaft) cannot be reduced, and the safety coefficient is high.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a novel hub power device and an electric bicycle. Background technique [0002] In recent years, electric bicycles have gradually been accepted by consumers as an environmentally friendly and energy-saving means of transportation. Whether at home or abroad, the sales of electric bicycles in the world are also increasing year by year, and the trend of electric bicycles replacing bicycles is gradually expanding. , and the electric bicycle hub power unit is the core component of the electric bicycle, and its quality often determines the overall quality of the electric bicycle. [0003] At present, the wheel hub power devices of electric bicycles on the market are mainly divided into two categories, direct drive power devices and traditional toothed power devices; wherein, the disadvantages of the direct drive power devices are large volume, small output torque, and difficult climbing...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B62M6/65B62M11/00H02K7/116
CPCB62M6/65B62M11/00H02K7/116
Inventor 鲁宇波吴聪宋文权徐浩杰
Owner M& SE DRIVING SYST CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap