US 9,809,916 B2
Washing machine with balancer and control method thereof
Min Sung Kim, Yongin (KR); Jeong Hoon Kang, Seoul (KR); Dong Ha Jung, Seongnam (KR); and Doo Young Rou, Suwon (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon (KR)
Filed on Feb. 19, 2014, as Appl. No. 14/183,867.
Prior Publication US 2015/0233037 A1, Aug. 20, 2015
Int. Cl. D06F 35/00 (2006.01); D06F 37/22 (2006.01); D06F 37/30 (2006.01); D06F 33/02 (2006.01)
CPC D06F 35/007 (2013.01) [D06F 33/02 (2013.01); D06F 35/005 (2013.01); D06F 37/22 (2013.01); D06F 37/225 (2013.01); D06F 37/304 (2013.01); D06F 2222/00 (2013.01); D06F 2700/04 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method of controlling a washing machine including a drum, a motor to rotate the drum, and a balancer including a plurality of masses, a groove including an inclined sidewall to accommodate the plurality of masses, and at least one magnet coupled to a surface of a balancer housing to counterbalance unbalanced load produced in the drum during rotation of the drum, the method comprising operations of:
(a) rotating the drum in one direction for a first length of time in a spin-drying cycle;
(b) stopping the drum for a second length of time after rotating the drum in the one direction for the first length of time;
(c) rotating the drum in a reverse direction for a third length of time after the second length of time elapses;
(d) stopping the drum for the second length of time after rotating the drum in the reverse direction for the third length of time,
wherein a clockwise and a counterclockwise stirring operation of the drum comprising the operations (a) to (d) is performed at least once to perform a ball distributing cycle of evenly distributing at least some of the plurality of masses in the balancer in a balancer housing, and
wherein a force applied to at least one of the plurality of masses by the rotating the drum is counterbalanced by a supporting force applied to the at least one of the plurality of masses by the inclined sidewall of the groove, and
wherein a movement of at least one of the plurality of masses in the groove is restricted by a magnetic force produced by the at least one magnet.