Electric air pump powered by external power source

An electric air pump powered by an external power source, the electric air pump comprising:

• an outer shell;
• a pump assembly disposed inside the outer shell and having
• a chamber;
• an inlet passage communicating with the chamber and an exterior of the chamber;
• and
• an outlet passage communicating with the chamber and the exterior of the chamber;
• and
• a control module disposed in the outer shell and having
• a circuit board;
• a power supply port electrically connected to the circuit board and being connectable to an external power source;
• and
• a starting switch electrically connected to the circuit board and being operable for controlling whether the circuit board is electrically connected to the pump assembly;
• wherein
• the pump assembly is drivable by electric power to pump air to sequentially flow through the inlet passage, the chamber, and the outlet passage;
• the outer shell has
• a containing space communicating with an exterior of the outer shell via an opening;
• and
• a cover detachably mounted to and covering the opening;
• the electric air pump has an inflating needle configured to be connected to one of the inlet passage and the outlet passage and configured to be contained in the containing space and limited in the containing space by the cover;
• the control module further has a pressure sensor that is electrically connected to the circuit board, is disposed in a sensing space communicating with the chamber, and is configured to sense a pressure of the sensing space so as to send a pressure data;
• the pressure sensor is disposed on the circuit board;
• the pump assembly further has a top cover covering an opening of the chamber and abutting the circuit board;
• the sensing space is enclosed by the top cover and the circuit board;
• and
• the inlet passage and the outlet passage are formed on the top cover.