Tray device and electronic device having the same: United States Patent 9985675

An electronic device including a housing that encloses a space between opposing faces and has an opening in a side face of the housing, the opening including a hole portion. A tray is configured to be inserted into the hole during mounting of the tray and removed therefrom when the tray is demounted. The device further includes a first fixing structure disposed substantially parallel to a side face of the tray inside the hole, and configured to be at least partially rotated about an axis in a direction outwardly from the hole. Further, including two terminals vertically arranged inside the hole with the tray being interposed therebetween so the terminals do not contact the tray, and a control circuit electrically connected to at least one of the first terminal and the second terminal, wherein, when the first terminal and the second terminal are electrically connected to each other, the control circuit is configured to detect demounting of the tray, and when the first terminal and the second terminal are electrically separated from each other, the control circuit is configured to detect mounting of the tray from the hole portion.