Refrigerator

A refrigerator comprising:

• a cabinet;
• a storage compartment defined within the cabinet;
• a main door pivotally mounted to the cabinet and configured to open or close at least a portion of the storage compartment;
• an auxiliary storage compartment mounted to a rear surface of the main door, the auxiliary storage compartment being configured to be accessed through an opening in the main door;
• a sub door pivotally mounted to the main door and configured to open or close at least a portion of the opening leading to the auxiliary storage compartment;
• a hook member provided at the sub door;
• a latch cam pivotally mounted in the main door and configured to be selectively caught by the hook member;
• a stopper pivotally mounted at a location above the latch cam and configured to selectively limit pivotal rotation of the latch cam;
• a solenoid device mounted below the latch cam and configured to laterally push the stopper via a vertical movement caused by the solenoid device to thereby release locking between the stopper and the latch cam;
• and
• a controller provided at the sub door to selectively operate the solenoid device.