POWER SUPPLY BOX BODY, POWER SUPPLY BOX APPLYING POWER SUPPLY BOX BODY AND VEHICLE

摘要

The present invention relates to a power supply box body, a power supply box applying the power supply box body and a vehicle. The power supply box body comprises a box body top plate, a box body bottom plate and box body surrounding plates arranged between the box body top plate and the box body bottom plate. The box body top plate, the box body bottom plate and the box body surrounding plates form a closed power supply placement cavity in an enclosing manner. The box body top plate and the box body bottom plate are made of a heat conducting material. The outer side of the box body top plate is provided with an upper air duct plate that forms an upper air duct together with the outer side surface of the box body top plate in an enclosing manner. The outer side of the box body bottom plate is provided with a lower air duct plate that forms a lower air duct together with the outer side surface of the box body bottom plate in an enclosing manner. A heat dissipating fan is connected at an air inlet and/or an air outlet of the upper air duct and the lower air duct, and airflow formed by the heat dissipating fan can flow in the relatively closed air ducts, thereby significantly improving the utilization efficiency of the heat dissipating fan, and enhancing the heat dissipating effect. Meanwhile, by means of the power supply box, cooling for the power supply box can be realized without affecting the internal environment of the power supply placement cavity, thereby solving the problem that the power supply box loses effectiveness because of heating.