A power supply system (10) is used for supplying power to a power system of an electric tractor and comprises a bracket (100) that is provided above and below a frame of a transport trailer, first cases (200) that are provided on the bracket and first power battery packs that are suspended inside the first case. Each of the first cases is provided with a first ventilation structure and a second ventilation structure (211) so that while the transport trailer is moving, wind can enter the first case from the first ventilation structure and be discharged from the second ventilation structure, thus achieving further cooling and heat dissipation for the first power battery packs and avoiding service life being impacted due to the first power battery pack overheating.

A power supply system (10) is used for supplying power to a power system of an electric tractor and comprises a bracket (100) that is provided above and below a frame of a transport trailer, first cases (200) that are provided on the bracket and first power battery packs that are suspended inside the first case. Each of the first cases is provided with a first ventilation structure and a second ventilation structure (211) so that while the transport trailer is moving, wind can enter the first case from the first ventilation structure and be discharged from the second ventilation structure, thus achieving further cooling and heat dissipation for the first power battery packs and avoiding service life being impacted due to the first power battery pack overheating.

The present disclosure concerns a vehicle-mounted power supply system, comprising: a vehicle-mounted battery assembly; an electric motor electrically coupled to the vehicle-mounted battery assembly; and a controller operatively coupled to the vehicle-mounted battery assembly and the electric motor to selectively provide a voltage outputted by the vehicle-mounted battery assembly to the electric motor. It also concerns a method for discharging a fluid from a tank of a truck with a truck-mounted fluid transfer pump system.

The present disclosure concerns a vehicle-mounted power supply system, comprising: a vehicle-mounted battery assembly; an electric motor electrically coupled to the vehicle-mounted battery assembly; and a controller operatively coupled to the vehicle-mounted battery assembly and the electric motor to selectively provide a voltage outputted by the vehicle-mounted battery assembly to the electric motor. It also concerns a method for discharging a fluid from a tank of a truck with a truck-mounted fluid transfer pump system.

A battery case of a battery storage device is disposed on a vehicle floor, thereby securing an interior space. A battery module of the battery storage device can be cooled by using an interior air, thereby simplifying a cooling structure and saving a manufacturing cost. In addition, the battery storage device for an electric vehicle blocks noise generated by a cooling device and an electrical component from flowing into the interior, thereby preventing the occurrence of a passenger's discomfort feeling caused by the noise.

A battery system for a vehicle includes a battery tray having a base wall, a plurality of side walls, and a cover that collectively define a receiving zone. A vent includes an inlet and an outlet exposed to the battery receiving zone. A battery is supported by the base wall. A battery electronic controller (BEC) is arranged in the receiving zone and directly connected to the battery.

A battery module includes a battery stack, a bottom plate, end plates, and side plates. The battery stack includes battery cells that are arranged in a first direction. The bottom plate covers a bottom surface of the battery stack. The end plates respectively cover first ends of the battery stack. The first ends are disposed in the first direction. The side plates respectively cover second ends of the battery stack. The second ends are disposed in a second direction orthogonal to the first direction. Each of the side plates includes a first coupling protrusion protruding upward of the battery stack. The bottom plate includes a second coupling protrusion protruding downward of the battery stack.

A battery module includes a battery stack, a bottom plate, end plates, and side plates. The battery stack includes battery cells that are arranged in a first direction. The bottom plate covers a bottom surface of the battery stack. The end plates respectively cover first ends of the battery stack. The first ends are disposed in the first direction. The side plates respectively cover second ends of the battery stack. The second ends are disposed in a second direction orthogonal to the first direction. Each of the side plates includes a first coupling protrusion protruding upward of the battery stack. The bottom plate includes a second coupling protrusion protruding downward of the battery stack.

A battery housing is arranged at a vehicle-longitudinal front side of a drive apparatus which transmits drive power to a rear axle of a vehicle. The battery housing encloses a battery for supplying electricity to the drive apparatus. The battery housing has an exterior surface including an air guide surface configured to guide airflow produced by the moving vehicle to the drive apparatus.

A battery module can include multiple cell tubes, a first conductive plate, and multiple first spacers. The multiple cell tubes can accommodate multiple battery cells within the multiple cell tubes so that individual of the multiple battery cells are positioned within individual of the multiple cell tubes. The first conductive plate can include multiple first holes and electrically connect first terminals of the multiple cells. The multiple first spacers can be mounted in the multiple first holes and support the multiple tubes and the multiple cells with respect to the first conductive plate, the multiple first spacers being configured to provide thermal and electrical isolation between the multiple battery cells and the first conductive plate.