公开(公告)号：US12275296B2

公开(公告)日：2025-04-15

申请号：US17994630

申请日：2022-11-28

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Shaobo Yang ,  Haisong Xu ,  Jiangang Wang ,  Jun Chen

IPC: B60K1/00 ,  H02K5/20

Abstract: A power assembly includes a rotor iron core, a gear set, a rotating shaft, and an oil-pumping system. The rotating shaft is fixedly connected to the rotor iron core and a driving gear in the gear set. The housing has an oil storage pool at a bottom and an oil collection tank at a high location, a part of a structure of a first gear in the gear set is located in the oil storage pool, and the first gear rotates to drive cooling oil in the oil storage pool to be raised and collected by the oil collection tank. The rotating shaft has a cooling oil channel inside. The cooling oil in the oil collection tank flows to the cooling oil channel, to dissipate heat from the rotor iron core.

公开(公告)号：US20250153559A1

公开(公告)日：2025-05-15

申请号：US19025876

申请日：2025-01-16

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Shaobo Yang ,  Quanming Li ,  Heng Wang

IPC: B60K11/02 ,  B60K1/00

Abstract: This disclosure provides a powertrain and a mechanical device. The powertrain includes a heat exchanger, an electronic assembly, and a motor. The electronic assembly includes a first housing, the motor includes a second housing, the first housing is fastened to the second housing, and the heat exchanger is also fastened to the first housing, so that both the heat exchanger and the electronic assembly and both the electronic assembly and the motor are fastened as a whole. The electronic assembly includes an electronic component, and the electronic component is disposed in an accommodation cavity of the first housing. The heat exchanger includes a first flow channel, and the first flow channel is configured to transmit a cooling working medium. This embodiment can improve integration of the powertrain and heat dissipation effect of the powertrain.

公开(公告)号：US20230087205A1

公开(公告)日：2023-03-23

申请号：US17994630

申请日：2022-11-28

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Shaobo Yang ,  Haisong Xu ,  Jiangang Wang ,  Jun Chen

IPC: B60K1/00 ,  H02K5/20

Abstract: A power assembly includes a rotor iron core, a gear set, a rotating shaft, and an oil-pumping system. The rotating shaft is fixedly connected to the rotor iron core and a driving gear in the gear set. The housing has an oil storage pool at a bottom and an oil collection tank at a high location, a part of a structure of a first gear in the gear set is located in the oil storage pool, and the first gear rotates to drive cooling oil in the oil storage pool to be raised and collected by the oil collection tank. The rotating shaft has a cooling oil channel inside. The cooling oil in the oil collection tank flows to the cooling oil channel, to dissipate heat from the rotor iron core.

公开(公告)号：US12134303B2

公开(公告)日：2024-11-05

申请号：US17953487

申请日：2022-09-27

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Jiangang Wang ,  Shaobo Yang ,  Jun Chen ,  Quanming Li

IPC: B60H1/32

Abstract: A temperature control system includes: a first cooling circuit, where a first cooling medium is circulated in the first cooling circuit, and the first cooling circuit is configured to cool a first structural unit; a second cooling circuit, where a second cooling medium is circulated in the second cooling circuit, and the second cooling circuit is configured to cool a second structural unit; and a heat exchanger, separately connected to the first cooling circuit and the second cooling circuit, and configured to perform heat exchange between the first cooling medium and the second cooling medium, where the first cooling circuit includes a bypass branch, and the bypass branch is connected in parallel to the heat exchanger. According to the temperature control system, heat dissipation efficiency for an inverter and an overall heat dissipation capability for a powertrain are improved.

公开(公告)号：US12057763B2

公开(公告)日：2024-08-06

申请号：US17845165

申请日：2022-06-21

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Shaobo Yang ,  Jiangang Wang

IPC: H02K9/19 ,  B60K1/00 ,  B60K11/02

CPC classification number: H02K9/19 ,  B60K1/00 ,  B60K11/02 ,  B60K2001/006

Abstract: A powertrain includes a motor, a reducer, an oil pan, and a cooling system. The cooling system includes at least one heat exchanger and at least two oil pumps. The at least two oil pumps are configured to deliver, to the heat exchanger, cooling oil sucked from the oil pan. The heat exchanger is configured to cool the cooling oil sucked by the at least two oil pumps. An oil outlet port of the heat exchanger is connected to an oil passage in the motor and an oil passage in the reducer, so that a part of the cooling oil cools the motor through the oil passage in the motor, and another part of the cooling oil cools the reducer through the oil passage in the reducer. The embodiments can improve a cooling effect of the cooling system for the powertrain.