Patent ID: 7149559

Claim:
A replaceable panel device for a handset comprising: a panel with a mounting portion which comprises a first groove and at least a first spring fixing portion; a locking subassembly which is accommodated in the mounting portion of the panel, the locking subassembly comprising a button and a first spring, said button comprising a table, at least a second spring fixing portion and a locking portion, said first spring comprising an elastic portion and two arms respectively extending from two ends of the elastic portion, the two arms respectively attaching with the second spring fixing portion of the locking subassembly and the first spring fixing portion of the panel; and a top cover with a second groove which corresponds with the first groove of the panel; wherein, the locking portion of the button passes through the first groove of the panel and the second groove of the top cover, and mates with the second groove by a return force of the first spring to fix the panel and the top cover together.