| 摘要 |
PURPOSE: A waterproof device for a button key is provided to obtain the complete waterproof performance by preventing the water from intruding into the inside of the electronic device through a button key included in the electronic device. CONSTITUTION: A case(40) comprises an opening. A button key(10) is inserted into the opening. An elastic part having elastic force is integrated with the button key. The elastic part(20) is located on the inside and the outside of the button key. A settling portion(30) is connected to the elastic part. The settling portion is welded along the circumferential surface of the opening of the case. The elastic part comprises an insert(22) formed inside the button key, a convex part(24) expanded from the insert to the external circumferential surface of the button key, and a fixing unit(26) connected to the settling portion.
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