| 摘要 |
A handset device (10) includes a housing (20) and a battery cover (30) mounted on the housing. The housing includes a front wall (24), a rear wall (22), two sidewalls (26), and at least one bay cooperatively surrounded by the front wall, the rear wall, and the sidewalls. The front wall includes at least one first receiving portion (240) including a wedge-shaped first slidable groove (242) having a first inclination angle and a recessed portion (244) communicating with the first slidable groove. The rear wall includes at least one receiving groove (220). The battery cover includes at least one fastening protrusion (34) corresponding to the first receiving portion and at least one protrusion (32) received in the receiving groove. The fastening protrusion has an inclination angle equal to the first inclination angle and includes a hook located at an end thereof, abutting the recessed portion.
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