Huawei Digital Power Technologies Co., Ltd.

Huawei Technologies Co., Limited

Quanming Li

Hao Wu

Wei Li

Jun Chen

Chao Wang

Guo Yang

Jiangang Wang

Zhiguo Zhang

Li He

Jianliang Wang

Huipeng Wu

Xiaowei Hui

Chengpeng Yang

Tingyu Xie

Yongfu Sun

Yibo Wang

Shuainan Lin

Jun Wen

Shaobo Yang

Hu Zhong

Hao Meng

Xingjie Wang

Zhisheng Lian

Faming Sun

Jiajia Sui

Jianxin Huang

Fei Bian

Xiaohu Liu

Chaopeng Liu

Baochun Chen

Chunyang Chen

Hua Lan

Chuanyang Li

Gongchuan Xia

Lingkun Zhu

Longhe Wei

Ningjun Zhu

A heat dissipation apparatus and a photovoltaic inverter are related to the field of heat dissipation device technologies, to improve a heat dissipation capability of the heat dissipation apparatus. The heat dissipation apparatus includes at least two stacked fan layers, and each fan layer includes at least one fan. A heat dissipation channel in a radiator has a first inlet, and the first inlet communicates with each air exhaust vent in at least one fan layer by using an air duct component. Compared with a solution in which fans are arranged along a width direction of the radiator, the at least two fan layers are stacked, which may not be limited by a width of the radiator. More fans can be arranged in a hierarchical stacking manner, and more fans can increase an overall amount of exhausted air, thereby improving the heat dissipation capability of the heat dissipation apparatus.

Heat dissipation apparatus and photovoltaic inverter

A motor includes a rotor, the rotor includes a rotor iron core, a first end cover, and a second end cover, and the first end cover and the second end cover are respectively connected to two ends of the rotor iron core. The first end cover is provided with a liquid inlet channel, the rotor iron core is provided with a liquid flow channel, and the first end cover or the second end cover is provided with a liquid outlet channel. The liquid inlet channel connects the liquid flow channel and space outside the rotor, the liquid outlet channel connects the liquid flow channel and the space outside the rotor, and an outlet of the liquid outlet channel faces a stator winding. Solutions of the embodiments can reduce processing costs while ensuring heat dissipation reliability of the rotor of the motor.

Motor, motor cooling system, and electric vehicle

A power converter, heat exchangers, heat sinks, and a photovoltaic power generation system, related to the field of heat dissipation. The power converter includes: a power semiconductor device, a magnetic element, a sealed cavity, and a heat dissipation cavity. The power semiconductor device and the magnetic element are disposed in the sealed cavity. The power semiconductor device dissipates heat through a first heat sink, and cooling fins of the first heat sink are located in the heat dissipation cavity. The magnetic element dissipates heat through a second heat sink, and cooling fins of the second heat sink are located in the heat dissipation cavity, Accordingly, reliability and heat dissipation effect of heat dissipation performed by the power converter are improved.

Power converter, heat exchanger, heat sink, and photovoltaic power generation system

A powertrain includes: a motor control unit () including a housing () and a first functional unit () disposed in the housing () and capable of generating heat during operation; and a heat exchanger () disposed in the housing (), where the heat exchanger () includes a first circulation channel () for a first cooling medium to circulate and a second circulation channel () for a second cooling medium to circulate. The first circulation channel () has a first external cooling surface (P), and the first circulation channel () conducts heat with the first functional unit () at the first external cooling surface (P); and/or the first circulation channel () has a second external cooling surface (P), and the first circulation channel () conducts heat with an inner surface of the housing () at the second external cooling surface (P).

Powertrain and electric vehicle

A temperature control apparatus and a temperature control system include at least one liquid storage device for storing liquid, at least two liquid supply devices, and a controller. Each liquid supply device is connected to the at least one liquid storage device through a first multiport valve to obtain liquid and is connected to a temperature regulating device through a second multiport valve. The controller is configured to control the first multiport valve and the second multiport valve that are connected to the controller to be conducted or not to be conducted. When the first multiport valve and the second multiport valve are conducted, each liquid supply device outputs the obtained liquid to the temperature regulating device. The temperature regulating device regulates a temperature of the liquid injected by each liquid storage device, and then supplies the liquid to at least one battery system.

Temperature control apparatus and temperature control system

Embodiments of this application disclose a vehicle thermal management system and method. The system includes a refrigeration cycle system, a coolant cycle system, and a control device, where the coolant cycle system includes a coolant cycle frontend radiator, a power assembly heat dissipation system, a battery pack heat dissipation system, a primary path water pump, a bypass water pump, and a valve bank system. In the system, the refrigeration cycle system is connected to the primary path water pump. Furthermore, in the system, the power assembly heat dissipation system and the battery pack heat dissipation system share the refrigeration cycle system and the coolant cycle frontend radiator by using the primary path water pump, the bypass water pump, and a combination of the valve bank system.

Vehicle thermal management system and method

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.

Temperature control system, temperature control method, and vehicle

Embodiments of this application provide a wireless charger, and relate to the field of charging device technologies. The wireless charger includes a wireless charging module, a first fan, a housing including a contact plate used for contact with the rear surface of the terminal device, and an air intake vent disposed at a position that is of the housing and that is close to the first fan, and an airflow guide structure disposed on a side that is of the housing and that is adjacent to the contact plate. The airflow guide structure extends toward the display surface of the terminal device.

Wireless charger

This application provides a film-like heat dissipation member, a bendable display apparatus, and a terminal device. The film-like heat dissipation member includes a heat dissipation layer. Composition and a structure of the heat dissipation layer are designed, so that a cutting-plane length of the heat dissipation layer changes in a surface bending process, can be bent repeatedly, and can implement uniform temperatures on two sides of the bendable display apparatus and the terminal device, thereby improving heat dissipation capabilities of the bendable display apparatus and the terminal device.

Film-like heat dissipation member, bendable display apparatus, and terminal device

A rotor includes a rotor iron core, a rotor shaft, and a fastening plate. The rotor iron core includes a first and a second end, and extends along an axial direction. The first fastening plate is fastened to at least the first or second end, and includes a through hole and a first runner. An inlet of the first runner communicates with the through hole. An outlet of the first runner is on a surface of a side of the fastening plate. The rotor shaft includes a second runner and a third runner in the rotor shaft. An inlet of the second runner is at one end of the at least one end of the rotor shaft. An outlet of the second runner communicates with an inlet of the third runner. An outlet of the third runner communicates with the inlet of the first runner.

Rotor, motor, and electric vehicle

A heat-conducting assembly includes a middle frame and a heat-conducting structure. The middle frame is plate-shaped, having a first side surface and a second side surface that are opposite to each other, and being provided with a first through hole through which the first side surface communicates with the second side surface. The heat-conducting structure includes a heat dissipation part and a conducting part. The heat dissipation part is fastened to the second side surface, and the conducting part extends into the first through hole. The conducting part includes a conductor being connected to the heat dissipation part and a heat insulator which is fastened in the first through hole through the heat insulator, and is in contact with a heat source, which is close to one end that is of the first through hole and that is located on the first side surface.

Heat-conducting assembly and terminal

Embodiments of the present invention relate to a wireless charging device. The wireless charging device includes a housing, an induction coil, a ferrite, a printed circuit board (PCB), and a fan. The housing includes a first surface and a second surface, a protrusion is disposed on the first surface, and the protrusion is configured to: support a to-be-charged device, and leave a gap between the to-be-charged device and the first surface when the to-be-charged device is installed on the wireless charging device. At least one first air guiding opening and at least one second air guiding opening are disposed on the housing. When the fan runs, the first air guiding opening, the fan, and the second air guiding opening form an air duct that passes through the ferrite and the PCB.

Wireless charging device

This application provides a rotor of a motor, including: a rotating shaft, provided with at least one first liquid outlet; a first end plate, disposed on an outer wall of the rotating shaft and perpendicular to the rotating shaft, where an inlet of at least one third passageway is provided on the first end plate; a second end plate, disposed on the outer wall of the rotating shaft and perpendicular to the rotating shaft, where an outlet of the at least one third passageway is provided on the second end plate; and a plurality of lamination sheets, disposed between the first end plate () and the second end plate, where at least one second through hole on each of the plurality of lamination sheets forms the at least one third passageway.

Rotor of motor and automobile

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.

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.

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Dongguan, China

Quanming Li