Refrigerator

A refrigerator comprising:

• a storage chamber;
• a cooler configured to perform at least one of supplying cold air or absorbing heat;
• and
• an ice maker including:
• a first tray provided in the storage chamber and configured to form a first portion of a cell;
• a second tray provided in the storage chamber and configured to form a second portion of the cell, the first and second portions being configured to form a space in which liquid is phase-changed into ice;
• a heater provided adjacent to at least one of the first tray or the second tray;
• an arm coupled to the second tray;
• a bracket supported by a wall defining the storage chamber,
• a driver mounted on the bracket and configured to move the second tray via the arm,
• wherein the driver includes:
• a cam having a rotation shaft coupled to the arm;
• a motor to rotate the cam;
• a magnet lever having an end configured to move along a surface of the cam;
• and
• a hall sensor configured to sense a distance to the magnet lever, and
• wherein the cam is moved in a first cam direction until the second tray moves to an ice separating position after the liquid has been completely phase-changed to the ice.

An ice maker, comprising:

• a first tray provided in the storage chamber and configured to form a first portion of a cell;
• a second tray provided in the storage chamber and configured to form a second portion of the cell, the first and second portions being configured to form a space in which liquid is phase-changed into ice;
• a heater provided adjacent to at least one of the first tray or the second tray;
• an arm coupled to the second tray;
• a pusher including at least one bar configured to press the second tray at the cell so that the ice is separated from the second tray;
• and
• a driver configured to move the second tray via the arm,
• wherein the driver includes:
• a cam having a rotation shaft coupled to the arm;
• a motor to rotate the cam;
• and
• a lever having an end configured to move along a surface of the cam, and
• wherein the cam is configured to move in a first cam direction so that the second tray contacts the pusher and the ice is separated from the second tray.