Patent ID: 8197957

Claim:
A battery cover assembly for a portable electronic device, the battery cover assembly comprising: a cover defining a button hole and a pole, the pole formed along a first linear direction of the cover; a housing, the cover slidably attached to the housing; a button disposed on the housing, and releasably received in the button hole; and at least one first elastic element arranged on the cover along a second linear direction substantially perpendicular with the first linear direction, one end of the at least one first elastic element attached to the housing, and another end of the at least one first elastic element attached to the pole of the cover; wherein the at least one first elastic element provides an elastic force to allow the cover to automatically slide to open relative to the housing when the button exits from the button hole; wherein the first elastic element is a spring, the number of springs is two, and the cover forms two parallel receiving portions for containing the springs along a longitudinal direction thereof, each receiving portion is made of two ribs, and a receiving groove is defined between the ribs, and the spring is received in the receiving groove.