Cylindrical battery pack positioning structure

The invention discloses a cylindrical battery pack positioning structure and belongs to the field of batteries, the cylindrical battery pack positioning structure comprises a base, a shell of a cylindrical battery comprises a cylindrical main body, the bottom end of the cylindrical main body is opened and bent inwards to form an inner and outer double-layer bottom cover bearing part, and a bottom cover is bent in the axial direction to form a circular ring part which is clamped with the bottom cover bearing part; an opening in the bottom end of the columnar main body is closed in a concave manner; the base comprises a top plate and surrounding baffles fixed to the periphery of the top plate to form a heat dissipation cavity, multiple rows of explosion holes penetrating through the top plate are formed in the top plate, and the centers of every two adjacent rows of explosion holes are distributed in a staggered mode. An annular groove with a U-shaped section is formed in the edge of the top of each explosion v