Patent ID: 8203829

Claim:
An electronic device, comprising: a housing comprising a compartment defined therein, the compartment comprising a back wall and two side walls opposite to each other; at least one elastic member fixed to the back wall; a plurality of grooves and a plurality of receiving spaces formed in the two side walls communicating with the compartment, each groove communicating with one receiving space; and a cover comprising: a base configured to cover the compartment, and the base operable to elastically compress the at least one elastic member; a knob rotatably connected to the base; a first connecting plate and a second connecting plate movably connected to the base, wherein each of the first connecting plate and the second connecting plate comprises at least one protruding post capable of being received in one of the plurality of receiving spaces when the cover closes the compartment and moving out of the receiving space via the groove to open the compartment; and a first elastic connecting member and a second elastic connecting member, wherein two ends of the first elastic connecting member are connected to the first connecting plate and the knob, two ends of the second elastic connecting member are connected to the second connecting plate and the knob.