Refrigerator

A refrigerator comprising:

• a cabinet having a storage chamber;
• a door connected to the cabinet and configured to open and close a portion of the storage chamber;
• and
• a door opening device configured to open the door,
• wherein the door opening device comprises:
• a driving motor,
• a push rack configured to receive power from the driving motor and to move between the cabinet and the door, the push rack comprising a rack gear configured to receive the power from the driving motor,
• a rack cover that is coupled to the push rack and that is configured to, based on the door being opened, contact a front surface of the cabinet or a rear surface of the door,
• a magnetic field generation device disposed at the rack cover and configured to generate a magnetic field,
• a sensor disposed at a position adjacent to the front surface of the cabinet or the rear surface of the door, the sensor being configured to sense the magnetic field, and
• a controller configured to control the driving motor based on output from the sensor,
• wherein the push rack comprises:
• an inclined surface that faces the rack cover,
• a cover coupling part coupled to the rack cover, and
• a shaft that rotatably connects the rack cover to the cover coupling part, the rack cover defining a shaft hole that receives the shaft,
• wherein the rack cover comprises a slot surface that faces the inclined surface of the push rack and that defines a slot configured to receive the cover coupling part, and
• wherein the inclined surface of the push rack is inclined in a direction away from the slot surface of the rack cover.