公开(公告)号：US20220289085A1

公开(公告)日：2022-09-15

申请号：US17826741

申请日：2022-05-27

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Xiaojing HE ,  Yanzhong WANG

IPC: B60N2/56 ,  B60H1/00

Abstract: This application provides a thermal management system and an electric vehicle. The thermal management system includes a battery water circuit and a seat water circuit. The battery water circuit includes a cooling water pump and a battery cooling/heating plate connected through a cooling water pipe. The seat water circuit has a liquid inlet end and a liquid outlet end. The liquid inlet end is connected between a liquid outlet of the cooling water pump and a liquid inlet of the battery cooling/heating plate through a seat water pipe and the cooling water pipe, and the liquid outlet end is connected between a liquid inlet of the cooling water pump and a liquid outlet of the battery cooling/heating plate through the seat water pipe and the cooling water pipe. The seat water circuit can be cooled by using the battery water circuit, to improve energy efficiency of the thermal management system.

公开(公告)号：US20230045376A1

公开(公告)日：2023-02-09

申请号：US17972363

申请日：2022-10-24

Applicant: HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD.

Inventor： Shuliang YU ,  Yanzhong WANG ,  Feng LONG ,  Hongji ZHANG

IPC: B60H1/00 ,  B60L58/26

Abstract: This application provide a refrigerant thermal management module and a thermal management system. Components in the refrigerant thermal management module are centrally arranged, so that a pipeline connected between the components is shortened and a refrigerant flow resistance is reduced, improving working performance of a refrigerant loop. In addition, a platform-based design is implemented through modular design. In addition, a plate heat exchanger in the refrigerant loop is used to absorb heat from a coolant loop in a vehicle function module, to implement a function of cooling the vehicle function module; and a condenser in the refrigerant loop is used to release heat to the coolant loop of the vehicle function module, to implement a function of heating the vehicle function module. Regardless of whether the vehicle function module needs to be heated or cooled, refrigerant flows in the refrigerant thermal management module keep a same direction of circulation.

公开(公告)号：US20220379683A1

公开(公告)日：2022-12-01

申请号：US17884939

申请日：2022-08-10

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Xiong HU ,  Zhengyi TANG ,  Hu ZHONG ,  Xueyu MEI ,  Huan WANG ,  Yanzhong WANG

IPC: B60H1/00 ,  B60K17/02 ,  B60K17/12 ,  B60K17/22

Abstract: An electric vehicle drive system and an electric vehicle. The electric vehicle drive system includes a powertrain and a transmission system. The powertrain includes a first power output mechanism and a second power output mechanism. One end of the transmission system is connected to the first power output mechanism, and the other end is configured to be connected to an air-conditioner compressor. The second power output mechanism is configured to drive the electric vehicle to travel. The powertrain in the electric vehicle drive system can also drive the air-conditioner compressor when driving the electric vehicle, to reduce a quantity of components inside the electric vehicle, thereby reducing space occupancy and costs.

公开(公告)号：US20220212517A1

公开(公告)日：2022-07-07

申请号：US17591491

申请日：2022-02-02

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Shuliang YU ,  Yanzhong WANG ,  Jiongde CHEN ,  Shaohua WANG

IPC: B60H1/00 ,  B60H1/32 ,  B60H1/14

Abstract: This application provides a thermal management system. The thermal management system includes a refrigerant loop and a motor coolant loop. The refrigerant loop and the motor coolant loop jointly include a low pressure chiller. The low pressure chiller is configured to enable a refrigerant in the refrigerant loop to absorb heat from a motor coolant in the motor coolant loop, to heat a target temperature-controlled space and/or a target temperature-controlled device. Therefore, a temperature of the motor coolant may be relatively low on a basis that a required heating temperature can be achieved, so that a difference between the temperature of the motor coolant and an ambient temperature is relatively small. In this way, heat loss caused by dissipation of heat from a motor to a surrounding environment can be reduced, thereby improving utilization of the heat from the motor.