Battery pack having an inner frame and an outer frame

摘要

A battery pack including a bare cell, the bare cell having a pair of first side portions opposite to each other, a pair of second side portions opposite to each other, and a pair of plane portions opposite to each other, the second side portions and the plane portions being connected to ends of the first side portions; a protection circuit module electrically connected to the bare cell; an inner frame between the bare cell and the protection circuit module, the inner frame accommodating the bare cell and exposing one side portion of the pair of first side portions; and an outer frame, the outer frame accommodating the bare cell, the protection circuit module, and the inner frame and exposing the pair of plane portions.

主权项

1. A battery pack, comprising:
a bare cell, the bare cell having a pair of first side portions opposite to each other, a pair of second side portions opposite to each other, and a pair of plane portions opposite to each other, the second side portions and the plane portions being connected to ends of the first side portions; a protection circuit module electrically connected to the bare cell; an inner frame between the bare cell and the protection circuit module, the inner frame covering the pair of second side portions and one side portion of the pair of first side portions to accommodate—the bare cell and exposing an entirety of the other side portion of the pair of first side portions; an outer frame, the outer frame accommodating the bare cell, the protection circuit module, and the inner frame and exposing the pair of plane portions; and at least one corresponding pair of connecting members, the connecting members being respectively on corresponding regions of an outside of the inner frame and an inside of the outer frame and coupled to each other such that the inner frame and the outer frame are directly connected to each other through the connecting members, wherein the connecting members include at least one protruding portion on an outside surface of the inner frame, the protruding portion being disposed adjacent to at least one of the second side portions of the bare cell and protruding in a direction away from the bare cell and perpendicular to the at least one of the second side portions, and at least one groove portion on an inside surface of the outer frame, the groove portion including an indentation in the inside surface of the outer frame corresponding to the protruding portion such that the protruding portion fits into the groove portion.