Storage medium accommodation device and electronic device including the same

An electronic device comprising:

• a housing including an opening;
• a socket provided inside the housing;
• and
• a storage medium accommodation device detachably coupled to the socket through the opening,
• wherein the storage medium accommodation device includes:
• a head;
• a first tray withdrawably introduced into the electronic device and configured to accommodate a first storage medium;
• a second tray provided between the head and the first tray withdrawably introduced into the socket, and configured to accommodate a second storage medium;
• first and second guides respectively provided on the first and second trays, and moved in a sliding manner such that the first and second trays can be introduced into/drawn out from the socket;
• and
• locking portions respectively included in the first and second guides and configured to restrict sliding movement of the first and second guides such that the first and second trays can be selectively introduced/drawn out when the locking portions is engaged or disengaged,
• wherein the locking portions includes a first locking portion and a second locking portion,
• wherein the first locking portion is provided on the first guide and configured to restrict the sliding movement of the second guide when the first locking portion and the second locking portion are engaged, and configured to allow the sliding movement of the second guide when the first locking portion and the second locking portion are disengaged, and
• wherein the second locking portion is provided on the second guide and configured to engage or disengage the first locking portion.

A method of operating an electronic device including a storage medium accommodation device, the method including:

• receiving a first external force to a second tray;
• sliding the second tray relative to a first tray;
• drawing the second tray out of a housing;
• maintaining the first tray in a state of being accommodated in the housing;
• receiving another second storage medium accommodated in the second tray;
• receiving a second external force to the second tray;
• drawing the first tray out of the housing together with the second tray;
• and
• receiving another first storage medium accommodated in the first tray.