Patent ID: 8817488

Claim:
A portable electronic device comprising: a main body comprising: a base; two first engaging portions respectively disposed on two end portions of a side of the base, wherein free ends of the two first engaging portions respectively point toward opposite directions; a casing installed on the base for accommodating an electronic component; and a first connecting terminal disposed on a surface of the casing adjacent to the side of the base and electrically connected to the electronic component; a first battery module detachably disposed on a side of the main body for transmitting electric power to the main body, the first battery module comprising: a first housing whereon at least one first hole is formed; two first constraining portions disposed on the first housing for respectively engaging with the corresponding two first engaging portions, so as to prevent the first housing from moving relative to the base at a first axial direction and a second axial direction different from the first axial direction; and a first transmission terminal disposed on a surface of the first housing for contacting the first connecting terminal; and a first latch structure slidably disposed on a side of the casing adjacent to the first connecting terminal, the first latch structure comprising: at least one first hook for engaging with the at least one first hole on the first housing, so as to prevent the first battery module from moving relative to the casing at a third axial direction different from the first axial direction and the second axial direction.