Ice maker, refrigerator having the same, and ice making method thereof

An appliance, comprising:

• a body including an ice making chamber;
• an ice maker located in the ice making chamber, the ice maker including:
• a tray having an ice making space;
• a driving unit configured to rotate the tray;
• and
• an ice moving member linearly movable within the ice making space upon rotation of the tray to eject ice from the tray,
• wherein the body is a refrigerator body having a refrigerating chamber and a freezing chamber, and wherein the ice making chamber is located in the refrigerating chamber.

An ice making method, comprising:

• supplying water to a tray;
• cooling the water contained in the tray to produce an ice mass;
• rotating the tray;
• and
• linearly moving an ice moving member within the tray to eject the ice mass from the tray,
• wherein the supplying water to the tray comprises sensing time or an amount of the water supplied to the tray, and determining whether the sensed time or water amount has reached a preset value.