US 2024/0239173 A1 · POWER ASSEMBLY AND AUTOMOBILE

Abstract

A powertrain includes a motor, a reducer, and an elastic component. The reducer includes an input shaft, the motor includes an output shaft, the input shaft is coaxially coupled to the output shaft, a coupling end of the input shaft includes a first limiting platform and a first coupling surface, and a coupling end of the output shaft includes a second limiting platform and a second coupling surface. The first limiting platform and the second limiting platform are disposed opposite to each other along an axial direction of the input shaft. The elastic component is fastened between the first limiting platform and the second limiting platform. The elastic component allows the motor to move axially in an operation process. Compared with a manner in which inner and outer rings of a bearing of a fixed motor are completely fastened, this reduces an assembly requirement of the motor.

Claims21

Dependent claims

-20. (canceled)

A powertrain, comprising:

a motor, a reducer, and an elastic component,
wherein the reducer comprises an input shaft, the motor comprises an output shaft, the input shaft is coaxially coupled to the output shaft, a coupling end of the input shaft comprises a first limiting platform and a first coupling surface, and a coupling end of the output shaft comprises a second limiting platform and a second coupling surface,
the first coupling surface and the second coupling surface are disposed opposite to each other along a radial direction of the input shaft, and the first coupling surface is in contact with the second coupling surface, so that the output shaft is in a transmission connection with the input shaft,
the first limiting platform and the second limiting platform are disposed opposite to each other along an axial direction of the input shaft, and
the elastic component is fastened between the first limiting platform and the second limiting platform.

2 more elements

An automobile, comprising:

a wheel and a powertrain,
wherein the powertrain comprises a motor, a reducer, and an elastic component, the reducer comprises an input shaft, the motor comprises an output shaft, the input shaft is coaxially coupled to the output shaft, a coupling end of the input shaft comprises a first limiting platform and a first coupling surface, and a coupling end of the output shaft comprises a second limiting platform and a second coupling surface,
the first coupling surface and the second coupling surface are disposed opposite to each other along a radial direction of the input shaft, and the first coupling surface is in contact with the second coupling surface, so that the output shaft is in transmission connection with the input shaft,
the first limiting platform and the second limiting platform are disposed opposite to each other along an axial direction of the input shaft,
the elastic component is fastened between the first limiting platform and the second limiting platform, and
the powertrain is configured to drive the wheel of the automobile to rotate.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

18/406,494Filed 8 Jan 2024

Priority

CN 202310072291.412 Jan 2023

Published

18 Jul 2024

Term ends

Not estimatedThe source records don’t support an estimate.

Classification8 codes

B60K 1/02
Arrangement or mounting of electrical propulsion units: comprising more than one electric motor
F16D 3/64
With the coupling parts connected by one or more intermediate members: comprising elastic elements arranged between substantially-radial walls of…
F16D 3/06
Adapted to specific functions: specially adapted to allow axial displacement
F16D 3/68
Comprising elastic elements arranged between substantially-radial walls of both coupling parts: the elements being made of rubber or similar material

Power assembly and automobile

Life of this patent

Power assembly and automobile

Life of this patent

Abstract

Claims21