Patent ID: 8746817

Claim:
A case structure of an electronic device, comprising: a main case comprising: a hollow portion; and a spring leaf structure protruding inwardly from a side of the hollow portion; a cover for combining with the main case to cover the hollow portion, the cover comprising: a body; a fastening portion; at least one positioning element, wherein the fastening portion and the at least one positioning element are disposed at two opposite sides of the body respectively; and a column portion disposed on the body to correspond to the spring leaf structure; and an elastic driving element movably combining with the main case, the elastic driving element comprising: a corresponding fastening portion disposed with respect to the fastening portion; and an operating portion, wherein the operating portion is movable to drive the corresponding fastening portion along with the operating portion; wherein the cover is combined with the main case by at least one fixing element being fastened to the main case and by the fastening portion being fastened with the corresponding fastening portion; wherein the spring leaf structure is pressed by the column portion to generate an elastic deformation; when the operating portion is activated to let the corresponding fastening portion detach from the fastening portion, then the cover may detach from the main case with an elastic restoring force exerted by the spring leaf structure on the column portion.