Integrated electric driving power assembly

A powertrain and electric drive technology, applied in the direction of electric power devices, power devices, electric components, etc., can solve the problems of increasing the axial size of the reducer, and achieve reduced operating noise, reduced axial size, and compact structure Effect

Pending Publication Date: 2018-10-19
JING JIN ELECTRIC TECHNOLOGIES (BEIJING) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The parking gear is generally arranged on the intermediate shaft or the output differential. When it is set at these two positions, the parking torque of the parking gear is relatively large, and the axial dimension of the parking gear must be designed to be relatively large, which will also Increase the axial dimension of the reducer

Method used

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  • Integrated electric driving power assembly

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Embodiment 1

[0028] Such as figure 1 Shown is Embodiment 1 of the present invention. In this embodiment, the integrated electric drive powertrain includes a motor and a gearbox (usually a reducer), and the output shaft of the motor is integrally made with the input shaft of the gearbox to form a power The main shaft 18 of assembly is provided with parking gear 5 in the gearbox, and parking gear 5 is fixedly installed on the main shaft, promptly is installed on the main shaft 18.

[0029] Affected by the torque transmission of the gearbox (reducer), the parking torque on the main shaft is small, and the axial dimension of the parking gear 5 can be designed to be relatively small, thereby reducing the axial dimension of the powertrain. The weight of the 5 is reduced, and so is the weight of the powertrain.

[0030] The motor can be a permanent magnet motor or an excitation motor, including the rotor 17 and the stator 2 . The rotor 17 includes a rotating shaft therein, which is also part of...

Embodiment 2

[0052] This embodiment is improved on the basis of embodiment 1. In embodiment 2 of the present invention, the third gear 11 is integrally formed with the intermediate shaft 10. This design can further simplify the structure of the powertrain.

[0053] Other structures of the integrated electric drive powertrain in Embodiment 2 of the present invention are the same as those in Embodiment 1, and will not be described again here.

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Abstract

The invention discloses an integrated electric driving power assembly. The problems of larger axial dimension and larger weight of an electric driving power assembly in the prior art are solved. The integrated electric driving power assembly comprises a motor and a gearbox; an output shaft of the motor and an input shaft of the gearbox are integrally made to form a spindle of the power assembly; aparking gear is arranged in the gearbox; and the parking gear is fixedly mounted on the spindle. According to the integrated electric driving power assembly, the axial dimension of the power assemblyis obviously reduced to be beneficial for realizing the light weight of the power assembly and the layout of the power assembly in a vehicle.

Description

technical field [0001] The invention relates to an integrated electric drive power assembly connected with a vehicle axle for driving a vehicle. Background technique [0002] Current pure electric or hybrid new energy vehicles are equipped with an electric drive powertrain, which includes a motor and a reducer, and the output shaft (or rotating shaft) of the motor is connected to the input shaft of the reducer to transmit torque. [0003] The output shaft (or rotating shaft) of the motor and the input shaft of the reducer are usually connected through a coupling, which has many parts, complex structure, low precision, high noise, and increases the axial size of the reducer and the motor, which is not conducive to the motor. Drive the weight reduction of the powertrain and its layout in the vehicle. [0004] In existing speed reducers, some parking gears are set to brake when the vehicle stops to prevent rolling (P gear), and the transmission part can be prevented from rotat...

Claims

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Application Information

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IPC IPC(8): B60K17/12H02K7/116
CPCH02K7/116B60K17/12B60K1/00B60K2001/001B60K17/043F16H57/021F16H57/023F16H57/029F16H57/031F16H63/3425F16H63/3466F16H2057/02034F16H2200/0021F16H2200/0043
Inventor 李建文王永务余平孙冉
Owner JING JIN ELECTRIC TECHNOLOGIES (BEIJING) CO LTD
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