Door structure with easy assembly and electronic device therewith

An electronic device comprising:

• a housing whereon a slot and a pivoting hole are formed;
• at least one connector installed on a side of the slot on the housing;
• and
• a door structure connected to the housing for shielding the at least one connector, the door structure comprising:
• a rotary cover connected to the housing in a rotatable manner, the rotary cover covering the at least one connector as rotating to a closed position;
• a pivotal portion, the pivotal portion comprising:
• a first part connected to the rotary cover;
• a second part pivoting to the pivoting hole on a side of the slot on the housing, so that the rotary cover rotates relative to the housing;
• and
• a third part located inside or adjacent to the pivoting hole when the rotary cover rotates relative to the housing;
• and
• a shielding component detachably disposed on the third part, the shielding component moving with the third part to the pivoting hole or to a position adjacent to the pivoting hole when the rotary cover rotates to an opened position to expose the slot on the housing, so as to contact against the housing to at least partly shield the pivoting hole on the housing.