Battery pack for electric vehicle and electric vehicle comprising battery pack

A battery pack for an electric vehicle, which is installed on a vehicle body longitudinal beam of the electric vehicle, wherein the battery pack for the electric vehicle comprises:

• a box, the box comprising at least two box units, and the box unit being provided with a battery module for external charging and discharging;
• a locking shaft arranged horizontally, the locking shaft being provided on upper part between two adjacent box units and corresponding to the location of a locking mechanism on the vehicle body longitudinal beam;
• a mounting plate is provided on the box, and one end of the locking shaft is connected to the mounting plate;
• there is a gap between the adjacent box units, and the box further comprises:
• a gap connection structure, the adjacent box units being connected by the gap connection structure, and the gap connection structure being respectively connected to the box bodies of the adjacent box units;
• the mounting plate is disposed on the gap connection structure.