Abstract: A powertrain and a vehicle. The powertrain includes an enclosure, a separator, a motor, a first liquid return channel, and a second liquid return channel. The separator separates an interior of the enclosure into a first cavity and a second cavity. The motor is located in the first cavity. The first liquid return channel is located on an outer side of the enclosure and communicates with the first cavity and the second cavity. The second liquid return channel is located on the outer side of the enclosure and communicates with the first cavity and the second cavity. In the embodiments, with two liquid return channels provided, a liquid return requirement can be met when the powertrain is installed or disposed at any angle or used on a slope, improving adaptability and safety of the powertrain.

Abstract: This application provides an oil-cooled motor, a powertrain, and a vehicle. The oil-cooled motor includes a rotating shaft and a first rotor iron core and a second rotor iron core that are sleeved on the rotating shaft and are adjacent to each other. A rotating shaft oil channel configured to communicate with a cooling system is disposed in the rotating shaft. M first oil channels that penetrate through two end faces of the first rotor iron core are disposed in the first rotor iron core. N second oil channels are disposed in the second rotor iron core. According to the oil-cooled motor provided in this application, a contact area between cooling oil and an interior of a rotor can be increased without affecting structural strength and magnetic conductivity of the rotor, so that cooling effect is improved.

Abstract: 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 (103) 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.

Abstract: 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 (103) 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.

Abstract: A remote radio unit, which includes a housing, a ventilation air channel, and a circuit component, where the housing is a sealed hollow cavity; the ventilation air channel passes through the housing, a top end of the ventilation air channel is connected to a top end surface of the housing in a sealed manner, and a bottom end of the ventilation air channel is connected to a bottom end surface of the housing in a sealed manner; and the circuit component is disposed inside the cavity, and is in contact with an external surface of a side wall of the ventilation air channel, so that heat generated by the circuit component is dissipated through the ventilation air channel.

Abstract: A remote radio unit, which includes a housing, a ventilation air channel, and a circuit component, where the housing is a sealed hollow cavity; the ventilation air channel passes through the housing, a top end of the ventilation air channel is connected to a top end surface of the housing in a sealed manner, and a bottom end of the ventilation air channel is connected to a bottom end surface of the housing in a sealed manner; and the circuit component is disposed inside the cavity, and is in contact with an external surface of a side wall of the ventilation air channel, so that heat generated by the circuit component is dissipated through the ventilation air channel.

Abstract: A remote radio unit, which includes a housing, a ventilation air channel, and a circuit component, where the housing is a sealed hollow cavity; the ventilation air channel passes through the housing, a top end of the ventilation air channel is connected to a top end surface of the housing in a sealed manner, and a bottom end of the ventilation air channel is connected to a bottom end surface of the housing in a sealed manner; and the circuit component is disposed inside the cavity, and is in contact with an external surface of a side wall of the ventilation air channel, so that heat generated by the circuit component is dissipated through the ventilation air channel.

Abstract: A remote radio unit, which includes a housing, a ventilation air channel, and a circuit component, where the housing is a sealed hollow cavity; the ventilation air channel passes through the housing, a top end of the ventilation air channel is connected to a top end surface of the housing in a sealed manner, and a bottom end of the ventilation air channel is connected to a bottom end surface of the housing in a sealed manner; and the circuit component is disposed inside the cavity, and is in contact with an external surface of a side wall of the ventilation air channel, so that heat generated by the circuit component is dissipated through the ventilation air channel.

Abstract: A remote radio unit, which includes a housing, a ventilation air channel, and a circuit component, where the housing is a sealed hollow cavity; the ventilation air channel passes through the housing, a top end of the ventilation air channel is connected to a top end surface of the housing in a sealed manner, and a bottom end of the ventilation air channel is connected to a bottom end surface of the housing in a sealed manner; and the circuit component is disposed inside the cavity, and is in contact with an external surface of a side wall of the ventilation air channel, so that heat generated by the circuit component is dissipated through the ventilation air channel.

Abstract: A remote radio unit, which includes a housing, a ventilation air channel, and a circuit component, where the housing is a sealed hollow cavity; the ventilation air channel passes through the housing, a top end of the ventilation air channel is connected to a top end surface of the housing in a sealed manner, and a bottom end of the ventilation air channel is connected to a bottom end surface of the housing in a sealed manner; and the circuit component is disposed inside the cavity, and is in contact with an external surface of a side wall of the ventilation air channel, so that heat generated by the circuit component is dissipated through the ventilation air channel.