公开(公告)号：US20230402901A1

公开(公告)日：2023-12-14

申请号：US18455288

申请日：2023-08-24

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Haisong Xu ,  Lingkun Zhu ,  Yibo Wang

IPC: H02K9/197 ,  H02K9/22

CPC classification number: H02K9/197 ,  H02K9/225

Abstract: A power assembly includes a power component and a shell. The shell includes an accommodating structure, a flow diversion structure, a liquid storage structure, a heat dissipation structure, and a heat exchange structure. The accommodating structure is filled with cooling liquid. The flow diversion structure is configured to guide a flow direction of the cooling liquid. The liquid storage structure is configured to store the cooling liquid that is guided by the flow diversion structure to enter the liquid storage structure, and to distribute the cooling liquid that enters the liquid storage structure. The heat dissipation structure is configured to receive the cooling liquid distributed by the liquid storage structure, and to transfer the cooling liquid to the power component to cool the power component. The heat exchange structure is configured to perform heat exchange and cooling on the cooling liquid in the accommodating structure.

公开(公告)号：US11577600B2

公开(公告)日：2023-02-14

申请号：US17466137

申请日：2021-09-03

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Jiangang Wang ,  Quanming Li ,  Tingyu Xie ,  Yibo Wang

IPC: B60K11/02 ,  B60L3/00 ,  H02K9/19 ,  B60K1/00

Abstract: This application provides a motor, including a stator core and a motor housing provided with a distribution groove, a liquid inlet channel, and a liquid outlet channel. The distribution groove is provided on an inner wall of the motor housing, the liquid inlet channel is in communication with the distribution groove and an outer space of the motor housing, and the liquid outlet channel is in communication with an inner cavity and the outer space of the motor housing. An outer wall of the stator core is provided with a stator groove. The stator groove is in communication with both the distribution groove and the liquid outlet channel. The liquid inlet channel, the distribution groove, the stator groove, and the liquid outlet channel are in communication to form a coolant channel.

公开(公告)号：US20230309276A1

公开(公告)日：2023-09-28

申请号：US18189692

申请日：2023-03-24

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Yibo Wang ,  Wengang Luo ,  Yunfei Qiao

IPC: H05K7/20

CPC classification number: H05K7/209 ,  H05K7/20409 ,  H05K2201/10166 ,  H05K2201/10174

Abstract: A power module includes a housing, a circuit component, and a package. The housing includes a main housing, a heat sink, and a fastening layer. A first outer surface of the main housing is provided with a groove. The fastening layer is disposed on a bottom surface of the groove. The heat sink is located on a side opposite to an orientation of the groove. The circuit component includes a heat dissipation surface and a pin. The heat dissipation surface is fastened to the fastening layer through welding. The pin extends out of the first outer surface in a direction away from the fastening layer. The package is configured to cover the circuit component, and to at least partially expose a distal end of the pin.

公开(公告)号：US11581785B2

公开(公告)日：2023-02-14

申请号：US17481526

申请日：2021-09-22

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Jiangang Wang ,  Quanming Li ,  Tingyu Xie ,  Yibo Wang

IPC: H02K9/19 ,  H02K5/20 ,  H02K1/20 ,  H02K7/116 ,  B60K1/00

Abstract: This application provides a motor cooling system of an electric vehicle. In the cooling system, a coil cooling oil passage includes a first oil outlet that is at an end portion of a stator core. A core cooling oil passage and the coil cooling oil passage are sequentially connected. In this case, cooling oil first enters the core cooling oil passage, and then enters the coil cooling oil passage. The core cooling oil passage extends in a circumferential direction of the stator core. The coil cooling oil passage extends in an axial direction of the stator core. A power apparatus drives the cooling oil to enter the core cooling oil passage from an oil inlet, flow through the core cooling oil passage, and enters the coil cooling oil passage from an oil through port. The cooling oil flows back to an oil return groove from the first oil outlet.