Abstract: A casing of an electronic device includes a holder, a cover and a wire baffle structure. The holder includes a supporting post. The supporting post axially defines a mounting hole therethrough. The cover includes a fixing post corresponding to the supporting post. The fixing post axially defines a fixing hole therethrough. The fixing hole communicates with the mounting hole. The wire baffle structure is formed at a top end of the supporting post. The wire baffle structure encircles a free end of the fixing post.

Abstract: An exemplary sliding mechanism includes a main plate, a slide plate, and a clock spring positioned between the main plate and the slide plate. The slide plate is slidably connected to the main plate. The clock spring includes a first spiral portion fixed to the slide plate, a second spiral portion fixed to the main plate, and a connecting portion connecting the first spiral portion to the second spiral portion. The clock spring is configured for driving the slide plate and enabling the slide plate to slide along the main plate after the slide plate is manually moved to a predetermined position with respect to the main plate.