Refrigerator and method for controlling the same
AssigneeLG Electronics Inc.
InventorsNam Gyo Lee, Kyung Seok Kim
Life of this patent
Estimating the term…
Abstract
A refrigerator and a method for controlling the same are provided. More particularly, the refrigerator is provided with a dispenser having a cavity for a cup, dispenser doors that open and close the cavity, and a door driver positioned in the dispenser that drives the dispenser doors. The dispenser doors may be automatically controlled to open and close, thereby improving cleanliness and an exterior appearance of the refrigerator by reducing dust accumulation in the dispenser during periods of non-use.
Claims31
A refrigerator, comprising:
- a door that opens and closes a food storage chamber;
- a dispenser body positioned on the door, the dispenser comprising an opening and a cavity;
- a dispenser door configured to open and close the opening;
- a door driver that drives the dispenser door;
- a human body detection sensor positioned on a surface of the refrigerator;
- and configured to detect a movement and a position of a user;
- a controller configured to operate the door driver to drive the dispenser door in response to signals from the human body detection sensor;
- and
- a contact sensor positioned on a door handle of the refrigerator, configured to sense a user contact,
- wherein the controller does not operate the door driver to open the opening if the contact sensor senses contact, and wherein the controller operates the door driver to open the opening if the human body detection sensor senses movement of the user and the contact sensor does not sense a user contact.
A method of controlling a refrigerator, comprising:
- detecting a movement and a position of a user;
- determining whether the user intends to use a dispenser of the refrigerator;
- automatically opening a dispenser door if the user intends to use the dispenser;
- determining whether the user has finished using the dispenser;
- and
- automatically closing the dispenser door if the user has finished using the dispenser,
- wherein the detecting the movement and the position of the user includes sensing that a user has approached within a first predetermined distance of the dispenser, and
- wherein the determining whether the user intends to use the dispenser includes
- waiting a first predetermined period of time after detecting the movement and position of the user for a signal from a contact sensor positioned on a refrigerator door handle of the refrigerator, the contact sensor being configured to provide a signal to a controller when the user touches the refrigerator door handle, and
- determining the user intends to use the dispenser if the user does not touch the refrigerator door handle within the first predetermined period of time after approaching the dispenser within the first predetermined distance.
A refrigerator, comprising:
- a door that opens and closes a food storage chamber;
- a dispenser body positioned on the door, the dispenser comprising an opening and a cavity;
- a dispenser door configured to open and close the opening;
- and
- a door driver that drives the dispenser door,
- wherein the dispenser door includes
- a first rotary door positioned to rotate at a first side of the opening, and
- a second rotary door positioned to rotate at a second side of the opening,
- wherein the door driver includes
- a drive motor configured to rotate the first rotary door, and
- a rotary power transmission configured to transmit rotary power from the drive motor to the second rotary door, and
- wherein the rotary power transmission includes
- a first connecting gear and a second connecting gear connected to the rotary shaft of the drive motor,
- a first interlocking gear connected to a rotary shaft of the first rotary door, and
- a second interlocking gear connected to a rotary shaft of the second rotary door, wherein the first interlocking gear is coupled to the first connecting gear and the second interlocking gear is coupled to the second connecting gear.
Dependencies are inferred from the claim text.