Refrigerator

A refrigerator comprising:

• a storage chamber;
• and
• an ice maker arranged in the storage chamber, the ice maker including:
• a support frame;
• a pressurizing member arranged on an inner side of the support frame;
• a first tray coupleable to the support frame and including a first main ice-making cell and a first auxiliary ice-making cell formed to extend upward from the first main ice-making cell;
• and
• a second tray that is moveable, the second tray being coupleable to the support frame, and coupleable to the first tray to form a spherical ice chamber, the second tray including a second main ice-making cell coupleable to the first main ice-making cell to form the spherical ice chamber, and a second auxiliary ice-making cell formed to extend upward from the second main ice-making cell and having a portion that contacts the first auxiliary ice-making cell, and
• wherein, as the second tray is moved to separate the second main ice-making cell of the second tray coupled to the first main ice-making cell of the first tray that form the spherical ice chamber, the pressurizing member applies pressure to the second auxiliary ice-making cell of the second tray.