Refrigerator
AssigneeLG Electronics Inc.
InventorsHeejun LEE, Dongjeong KIM, Seungyoon CHO
Life of this patent
Estimating the term…
Abstract
A refrigerator comprises: a cabinet including a storage compartment, a door opening or closing the storage compartment, a door opening device including a push rod moving from an initial position to a door opening position for opening the door and a motor providing power to the push rod, and a controller controlling the motor. The controller allows the motor to rotate at a first opening speed for opening the door of the refrigerator. The controller changes a rotation speed of the motor to a second opening speed lower than the first opening speed before the push rod contacts the door of the refrigerator or the cabinet.
Claims20
A refrigerator comprising:
- a cabinet comprising a storage compartment;
- a door configured to open and close the storage compartment;
- a door opening device comprising (i) a push rod configured to move from an initial position to a door opening position for opening the door, and (ii) a motor configured to provide power to move the push rod;
- and
- a controller configured to control a rotation of the motor by:
- rotating the motor at a first opening speed to open the door of the refrigerator;
- decreasing a rotation speed of the motor from the first opening speed to a second opening speed smaller than the first opening speed before the push rod contacts the door of the refrigerator or contacts the cabinet;
- and
- increasing the rotation speed of the motor from the second opening speed to a third opening speed greater than the second opening speed after the push rod contacts the door of the refrigerator or contacts the cabinet.
A refrigerator comprising:
- a cabinet comprising a storage compartment;
- a refrigerator door configured to open and close the storage compartment;
- a door opening device comprising (i) a push rod configured to move from an initial position to a door opening position for opening the refrigerator door, and (ii) a motor configured to provide power to move the push rod;
- and
- a controller configured to control a rotation of the motor by:
- rotating the motor at a first closing speed and subsequently increasing a rotation speed of the motor from the first closing speed to a second closing speed greater than the first closing speed to move the push rod from the door opening position back to the initial position;
- and
- decreasing the rotation speed of the motor from the second closing speed before the push rod moves back to the initial position.
A refrigerator comprising:
- a cabinet comprising a storage compartment;
- a refrigerator door configured to open and close the storage compartment;
- a door opening device comprising (i) a push rod configured to move from an initial position to a door opening position for opening the refrigerator door, and (ii) a motor configured to provide power to move the push rod;
- and
- a controller configured to control a rotation of the motor by:
- based on power being applied to the refrigerator, rotating the motor in a first direction in which the push rod moves from the door opening position back to the initial position;
- based on the push rod reaching a reference position, changing a rotation direction of the motor to a second direction;
- and
- based on the push rod reaching the initial position, stopping the rotation of the motor.
Dependencies are inferred from the claim text.