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

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