Patent ID: 7864511

Claim:
A cover assembly for an electronic device, the cover assembly comprising: a housing plate comprising an inner surface, an outer surface, a first wall, a second wall, a third wall, and a fourth wall, the housing plate defining a rectangular opening through the outer surface and the inner surface, the first wall, the second wall, the third wall, and the fourth wall being formed at the four edges of the rectangular opening, the housing plate defining a first positioning slot in the first wall, two second positioning slots in an end of the second wall and the third wall adjacent to the first wall, and a third positioning slot at a side of the rectangular opening near the fourth wall; and a cover comprising a front end, a rear end opposite to the front end, a first locking sheet formed on the middle of the front end, two second locking sheets formed on both sides of the front end, and two third locking sheets formed on the inner surface of the rear end of the cover and protruding from the rear end to the front end; wherein the cover is connected to the housing plate via the first, second, and third locking sheets, and the first, second, and third locking sheets are correspondingly inserted into the first, second, and third positioning slots for restricting the motion of the cover in the directions perpendicular and parallel to the surface of the housing plate.