Patent ID: 7136291

Claim:
A connecting structure for a battery case and a main body of a portable electronic device, comprising: a base, having a receiving part and having a recessed portion for receiving a battery; a connecting member, a hinge formed at a first end of the connecting member; a cover having a track; a shaft received in the receiving part; a cylinder having a through hole therein; wherein the connecting member is connected to the cylinder, the shaft extends through the through hole of the cylinder and is received in the receiving part of the base, and the connecting member can slide along the track; wherein a side wall of the base has a plurality of grooves, and the cover further has a plurality of holders engagingly received in the grooves; wherein a projection is formed on the cover; wherein a side wall of the base defines a notch; and wherein the projection of the cover is held in the notch of the base when the battery case is completely closed.