Power supply system applied to new energy commercial vehicle and new energy commercial vehicle

Abstract

The invention discloses a power supply system applied to a new energy commercial vehicle and the new energy commercial vehicle, and relates to the technical field of batteries of the new energy commercial vehicle. The power supply system comprises a plurality of mutually connected battery boxes and a power distribution unit. And the power distribution unit can select at least one battery box from the plurality of battery boxes to supply power to the new energy commercial vehicle, and can also control charging and discharging among the plurality of battery boxes. The battery box comprises a shell, a high-voltage connecting unit, a liquid path connecting unit and a plurality of standardized power supply assemblies. The standardized power supply assembly comprises a battery cell support, a heat management module, a high-voltage integrated module and a plurality of battery cells. Each standardized power supply assembly comprises an independent thermal management module, and the thermal management module extends out of a liquid inlet and a liquid outlet. Therefore, the power supply system main body is composed of a plurality of completely consistent standardized power supply assemblies which are independently cooled, differentiated heat dissipation can be carried out on the battery cells at different positions, and the power supply system is low in cost, good in safety and high in expandability.

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