Patent ID: 8508936

Claim:
A portable electronic device comprising: a main body comprising a positioning concave area on a bottom surface thereof, the positioning concave area having a cutout at a first edge, and an inclined surface and a guide edge at a second opposite edge; a door being detachably connected with the bottom surface of the main body, the door has a through hole; and a latch being slidably connected with the through hole, the latch having an engaging portion at a first end and a guiding portion at a second opposite end; when the door is assembled to the bottom surface of the main body, the engaging portion inserts into the cutout, when the door is taken apart from the bottom surface of the main body, the engaging portion is removed from the cutout, and the guiding portion slides along the guide edge so as to enable the door to move along a direction that is substantially perpendicular to a long axis of the latch, when the door is assembled to the bottom surface of the main body, the door is moved toward the bottom surface to move the guiding portion of the latch along the inclined surface of the positioning concave area such that the latch is slid along a long axis direction thereof.