Protection mechanism of power battery pack

The protection mechanism of the power battery pack is characterized by comprising an inner layer structure and an outer layer structure, and the inner layer structure is arranged in the outer layer structure; the outer layer structure comprises an outer box body, an outer box cover, a handle, a cooling fan, an outer interface A and a lock catch, the handle is arranged on the outer side of the outer box body, the outer box cover is arranged above the outer box body, the outer interface A is formed in the outer box cover, the cooling fan is arranged on the outer box cover, and the lock catch is arranged on the edge of the outer box cover. The influence of external shaking on the power battery is reduced, and the heat dissipation of the power battery pack is also ensured; by using the elastic supporting legs, the anti-collision angle beads, the lock catches, the grooves of the outer box cover and the convex columns of the inner box cover, the shaking of the power battery pack is reduced; and by using the sealing