Patent ID: 8052001

Claim:
A case assembly structure of an electronic device, comprising: a first case having a first connection portion including a first protrusion, a first trench and a second protrusion from an external side to an internal side thereof; and a second case having a second connection portion including a third protrusion, a second trench and a platform from an external side to an internal side thereof; wherein said first trench and said second protrusion of said first connection portion of said first case are corresponding to said third protrusion and said second trench of said second connection portion of said second case, a side of said second protrusion of said first connection portion of said first case is in contact with a side of said platform of said second connection portion of said second case, and an inner wall of said first protrusion of said first connection portion of said first case is in contact with said external side of said second connection portion of said second case such that said first case and said second case are combined together.