Unlock instant, AI-driven research and patent intelligence for your innovation.

Electric driving device

An electric drive, inner ring technology, applied in electric power units, power units, control units, etc., can solve the problems of poor assembly, long rotor shaft wall thickness, and poor manufacturability, and achieve the effect of improving assembly.

Pending Publication Date: 2020-02-28
SHANGHAI ZHONGKE SHENJIANG ELECTRIC VEHICLE
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing technical solutions have the following problems: one end of the rotor shaft is formed with an input pinion, and a front bearing, a rotor, and a rear bearing are installed in sequence along the rotor shaft. Since the outer diameter of the input pinion rests on the inner diameter of the front bearing, and The front bearing is assembled between the input pinion and the rotor, and the front bearing, the rotor and the right bearing must be assembled to the rotor shaft in sequence, which makes the outer diameter of the hollow rotor shaft limited by the inner diameter of the front bearing, thus The wall thickness is thin, and the connection method between the rotor and the rotor shaft must also be specially selected, so the assemblability is poor; the hollow rotor shaft has a thin and long wall thickness, so the manufacturability is poor

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
  • Electric driving device
  • Electric driving device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] In order to be able to understand the technical content of the present invention more clearly, the following embodiments are specifically described in detail. It should be understood that the embodiments are only used to illustrate the present invention, but not to limit the present invention.

[0027] figure 2 It is a schematic structural diagram of an electric drive device involved in a specific embodiment of the present invention. Reference figure 2 , The electric drive device 100 includes: a front bearing 10, which is a split bearing; a rotor shaft 20, the output end 201 of which is supported by the front bearing 10; an input gear 30, which is fixedly connected to the output end 201 of the rotor shaft 20.

[0028] The electric drive device 100 adopts a split bearing as the front bearing 10, so that the outer diameter of the rotor shaft 20 is no longer restricted by the inner diameter of the front bearing 10, and the wall thickness of the rotor shaft 20 can also be in...

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 relates to an electric driving device. The electric driving device comprises a front bearing, a rotor shaft and an input gear; a split bearing is adopted as the front bearing; the outputend of the rotor shaft is supported by the front bearing; and the input gear is fixedly connected to the output end of the rotor shaft. According to the electric driving device, the split bearing isadopted as the front bearing, the outer diameter of the rotor shaft is not limited by the inner diameter of the front bearing any more, the wall thickness of the rotor shaft also can be increased, theconnecting mode of the rotor shaft and a rotor does not need to be especially selected, and therefore the assemblability and / or the manufacturability is improved.

Description

Technical field [0001] The present invention relates to the technical field of vehicle drive transmission, in particular to an electric drive device, in particular to a coaxial electric drive device. Background technique [0002] The existing coaxial electric drive device usually includes an electric motor, and a reducer with a differential device and the electric motor basically arranged coaxially. The rotor shaft is a hollow shaft, and because the reducer is arranged on one side of the electric motor, a through The intermediate drive shaft in the inner cavity of the rotor shaft, its structure can be referred to figure 1 Shown. [0003] The existing technical solutions have the following problems: an input pinion is made at one end of the rotor shaft, and a front bearing, a rotor and a rear bearing are arranged in sequence along the rotor shaft. Because the outer diameter of the input pinion overlaps the inner diameter of the front bearing, and The front bearing is assembled betw...

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
Patent Type & Authority Applications(China)
IPC IPC(8): B60K1/00B60K17/08
CPCB60K1/00B60K17/08
Inventor 邓华红夏承钢孙江明
Owner SHANGHAI ZHONGKE SHENJIANG ELECTRIC VEHICLE