公开(公告)号：US12113421B2

公开(公告)日：2024-10-08

申请号：US17457390

申请日：2021-12-02

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Ke Wang ,  Shenghai Jiang ,  Lang Lv ,  Zhiqi Wei ,  Guojie Xu ,  Senlin Ma ,  Wenwu Ma

IPC: F16C19/06 ,  F16C35/077 ,  H02K5/173 ,  B60K1/00

CPC classification number: H02K5/1732 ,  F16C19/06 ,  F16C35/077 ,  B60K2001/001

Abstract: This application describes a motor that includes a housing, an output shaft, a conductive bearing, and a conductive component. The output shaft is disposed in the housing. A positioning hole is disposed on an end face of a first end of the output shaft, and the positioning hole is disposed coaxially with the output shaft. The conductive bearing is disposed in the positioning hole, and includes an inner ring, and an outer ring that is fixedly connected to the output shaft. One end of the conductive component is fixedly connected to the inner ring of the conductive bearing, and the other end is connected to the housing. In this application, the motor can output, by using the conductive bearing and the conductive component, charges accumulated in the output shaft, to eliminate a generated common-mode voltage.

公开(公告)号：US12196300B2

公开(公告)日：2025-01-14

申请号：US18502882

申请日：2023-11-06

Applicant: HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD.

Inventor： Jian Hong ,  Senlin Ma ,  Jian Chen

IPC: F16H48/40 ,  B60K17/16 ,  F16H48/08 ,  F16H57/023 ,  F16H57/04 ,  F16H57/02

Abstract: This application describes examples of a differential device, a powertrain, and a vehicle. In one example, the differential device includes a housing, three planetary gears, two side gears, and at least one window. Each of the three planetary gears is mounted on an inner wall of the housing through a pin shaft, the three planetary gears are disposed spaced from each other along a circumferential direction of the housing. The two side gears are disposed on two sides of the three planetary gears along the axial direction of the housing and meshed with the three planetary gears. The main reduction gear drives the housing to rotate around the axial direction of the housing, so that the three planetary gears drive the two side gears to drive two drive shafts respectively.

公开(公告)号：US20240239173A1

公开(公告)日：2024-07-18

申请号：US18406494

申请日：2024-01-08

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Jian Hong ,  Senlin Ma ,  Jian Chen

IPC: B60K1/02

CPC classification number: B60K1/02

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.