US 12,129,702 B2
Refrigerator and control method thereof
Taein Eom, Suwon-si (KR); Daesung Ki, Suwon-si (KR); Chanyoung Park, Suwon-si (KR); and Hyunuk Park, Suwon-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Apr. 29, 2022, as Appl. No. 17/732,679.
Application 17/732,679 is a continuation of application No. PCT/KR2022/005347, filed on Apr. 13, 2022.
Claims priority of application No. 10-2021-0085800 (KR), filed on Jun. 30, 2021.
Prior Publication US 2023/0003072 A1, Jan. 5, 2023
Int. Cl. E05F 15/614 (2015.01); F25D 23/02 (2006.01)
CPC E05F 15/614 (2015.01) [F25D 23/028 (2013.01); E05Y 2900/31 (2013.01); F25D 2323/024 (2013.01); F25D 2700/02 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A refrigerator comprising:
a housing;
a door configured to be rotatably couplable to the housing by a hinge shaft and a hinge gear fixed to the hinge shaft; and
a door opening and closing assembly provided at an end of the door to control opening of the door and closing of the door, the door opening and closing assembly comprises,
a drive motor;
a final gear to receive power from the drive motor and to transmit the power to the hinge shaft, the final gear being arranged at an end of the door opening and closing assembly to interlock with the hinge gear to thereby allow the opening of the door and the closing of the door according to the received power;
a magnet configured to have a same rotation axis as the final gear, the magnet including a plurality of N-poles alternating with a plurality of S-poles around a circumference of the magnet; and
a door position sensor arranged on a side of the final gear to sense rotation of the magnet to thereby detect a rotation angle of the final gear.