Patent ID: 7252899

Claim:
A fuel cell system comprising: an electromotive unit which generates power based on a chemical reaction, an air pump which supplies air to the electromotive unit, a fuel tank which contains fuel, a passage which is connected to the electromotive unit and through which fluids, including the fuel, water, and air, are circulated, a liquid pump which is located in the passage and supplies the fuel to the electromotive unit, and a valve mechanism which is located in the passage and regulates the circulation of the fluids; a connector which is connectable to an electronic device and applies the power generated by the electromotive unit to the electronic device; a locking mechanism having a locking member, movable between a locking position in which the locking member locks the electronic device connected to the connector in a connected position and a release position in which the electronic device is unlocked, and an eject member which moves the locking member from the locking position to the release position; a detector which detects movement of the eject member; and a drive unit which closes the valve mechanism and stops the air pump and the liquid pump when the movement of the eject member is detected by the detector.