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公开(公告)号：US20230114407A1
公开(公告)日：2023-04-13
申请号：US17964116
申请日：2022-10-12
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Hongbing LIU , Xiang FANG , Yi CAO , Jiangang WANG
IPC: F16H57/04
Abstract: A power assembly and a vehicle. The power assembly includes a housing, and a first drive motor, a first speed reducer, a first oil path, a second drive motor, a second speed reducer, a second oil path, and a third oil path that are located inside the housing. The power assembly further includes a first oil pump and a second oil pump. The housing is provided with an oil pan. The first drive motor includes a first stator and a first rotor. The second drive motor includes a second stator and a second rotor. Both the first oil pump and the second oil pump are connected to the oil pan. The power assembly simplifies the oil paths in the housing and improve an integration level.
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公开(公告)号：US20230327504A1
公开(公告)日：2023-10-12
申请号：US18321098
申请日：2023-05-22
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Hongbing LIU , Haisong XU , Jiangang WANG , Shaobo YANG , Bayaer EERHEMU , Jun CHEN
Abstract: A stator includes a stator core and a seal kit. The stator core includes a yoke part and a plurality of tooth parts. A tooth root of the tooth part is connected to the yoke part. A tooth top of the tooth part is away from the yoke part. An opening slot is formed between two adjacent tooth parts. The opening slot includes a coil slot and a flow passing slot that communicate with each other. The coil slot extends from the tooth top to the tooth root. The coil slot is configured to accommodate a stator coil. The flow passing slot extends from the tooth root to the yoke part. The seal kit is connected to an inner wall of the opening slot. The seal kit and the inner wall of the flow passing slot jointly form a flow passing passage for a coolant to flow through.
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公开(公告)号：US20240297554A1
公开(公告)日：2024-09-05
申请号：US18582868
申请日：2024-02-21
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Sixue WANG , Hongbing LIU , Qiqi GUO , Jingzhou WEI
Abstract: A motor and a powertrain. The motor includes a stator, an end cover, and a housing. The housing may be configured to install the stator and the end cover, and the stator and the end cover are adjacently arranged along an axial direction of the motor. The end cover includes an outer circumferential surface, a side surface, and an internal channel. The outer circumferential surface includes at least one liquid inlet, and at least one liquid inlet is configured to receive coolant through the housing. The side surface faces the stator, and the side surface includes a plurality of liquid outlets. In the motor, the coolant can enter the end cover through at least one liquid inlet and be sprayed to the stator through the plurality of liquid outlets, to cool the stator.
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公开(公告)号：US20230318370A1
公开(公告)日：2023-10-05
申请号：US18321102
申请日：2023-05-22
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Hongbing LIU , Haisong XU , Bayaer EERHEMU , Shaobo YANG , Jun CHEN
IPC: H02K1/20
CPC classification number: H02K1/20
Abstract: A motor, a powertrain, and a device. A plurality of first oil channels are formed between an inner surface of a housing and an outer surface of a stator core, second oil channels are formed at groove roots of coil slots of the stator core, to form double-layer oil channels at the outer surface of the stator core and the root of the coil slot of the stator core, and ensure effective cooling of the stator core and a coil winding. After cooling oil is injected from an oil filling port, a flow direction of the cooling oil in some of the second oil channels is opposite to that of cooling oil in a remaining second oil channel, so that interleaved reverse flows are implemented, and axial temperature of the stator core and the coil winding is more even.
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