IP Library Granted Patent US 8,719,986
Granted Patent B2
US 8,719,986 · App. 13/232,480 · Granted May 13, 2014

Control method of washing machine

Inventors: Pyounghwan Kim (Changwon-si, KR); Hyungyong Kim (Changwon-si, KR); Seogkyu Park (Changwon-si, KR); Youngkee Oh (Changwon-si, KR); Deughee Lee (Changwon-si, KR); Eunjin Park (Changwon-si, KR); Taehyok Kwon (Changwon-si, KR)
Assignee: LG Electronics Inc.
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Quick Facts
Patent No.
US 8,719,986
App. No.
13/232,480
Granted
May 13, 2014
Kind
B2
Abstract

Disclosed herein is a control method of a washing machine which minimizes damage to laundry to be washed. The control method includes executing a washing cycle to wash laundry to be washed by supplying wash water, dissolving detergent in wash water and washing the laundry, executing a rinsing cycle to rinse the laundry by draining wash water, spin-drying the laundry, and rinsing the laundry, and executing a spin-drying cycle to spin-dry the laundry by draining wash water and spin-drying the laundry, wherein the dissolving of the detergent is carried out at a water level lower than a predetermined reference water level.

Claims (24)

1. A control method of a washing machine comprising:

executing a washing cycle to wash laundry to be washed by supplying wash water, dissolving detergent in wash water and washing the laundry;

executing a rinsing cycle to rinse the laundry by draining wash water, spin-drying the laundry, and rinsing the laundry; and

executing a spin-drying cycle to spin-dry the laundry by draining wash water and spin-drying the laundry,

wherein the dissolving of the detergent is carried out at a water level lower than a predetermined reference water level,

wherein, in the washing of the laundry, a centrifugal tumbling operation of rotating a drum at a high velocity in one direction to cause wash water to flow over the drum and then to drop onto the laundry, a tub/drum rotating operation of rotating the drum in both directions, and a pulsator rotating operation of rotating a pulsator in both directions are executed together,

wherein the centrifugal tumbling operation and the tub/drum rotating operation are executed at the predetermined reference water level, and the pulsator rotating operation is executed at a water level higher than the reference water level, and

wherein the centrifugal tumbling operation and the tub/drum rotating operation are alternately executed for a designated time and then the pulsator rotating operation is executed.

2. The control method according to claim 1 , wherein, in the washing of the laundry, the centrifugal tumbling operation, the tub/drum rotating operation and the pulsator rotating operation are executed at least once for a predetermined washing time.

3. The control method according to claim 2 , wherein, in the washing of the laundry, a tub/drum rotating operation to disperse the laundry is further executed after the pulsator rotating operation.

4. The control method according to claim 1 , wherein the rinsing of the laundry is executed plural times automatically according to an amount of the laundry or by selection of a user, and, in the rinsing of the laundry prior to the final rinsing of the laundry, wash water is additionally supplied to a water level higher than the predetermined reference water level.

5. The control method according to claim 4 , wherein, in the rinsing of the laundry prior to the final rinsing of the laundry, the drum is rotated after the additional supply of wash water.

6. The control method according to claim 5 , wherein, in the rinsing of the laundry prior to the final rinsing of the laundry, wash water in the drum is partially drained after the rotation of the drum such that wash water is lowered to the reference water level from the water level higher than the reference water level.

7. The control method according to claim 6 , wherein, in the rinsing of the laundry prior to the final rinsing of the laundry, the additional supply of wash water, the rotation of the drum and the partial drainage are repeated plural times.

8. The control method according to claim 7 , wherein, in the rinsing of the laundry prior to the final rinsing of the laundry, a drain valve is closed during the rotation of the drum.

9. The control method according to claim 7 , wherein the partial drainage is executed in a stopped state of the drum.

10. A control method of a washing machine comprising:

executing a washing cycle to wash laundry to be washed by supplying wash water, dissolving detergent in wash water and washing the laundry,

wherein, in the washing of the laundry, a centrifugal tumbling operation of rotating a drum at a high velocity in one direction to cause wash water to flow over the drum and then to drop onto the laundry, a tub/drum rotating operation of rotating the drum in both directions, and a pulsator rotating operation of rotating a pulsator in both directions are executed together,

wherein the centrifugal tumbling operation and the tub/drum rotating operation and are executed at the predetermined reference water level, and the pulsator rotating operation is executed at a water level higher than the reference water level,

wherein the centrifugal tumbling operation and the tub/drum rotating operation are alternately executed for a designated time and then the pulsator rotating operation is executed.

11. The control method according to claim 10 , wherein the dissolving of the detergent is carried out at a water level lower than a predetermined reference water level.

12. The control method according to claim 11 , wherein detergent dissolving step is carried out by the centrifugal tumbling operation.

13. The control method according to claim 12 , wherein, in the washing of the laundry, the tub/drum rotating operation is additionally executed after the pulsator rotating operation.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 7, 2011
From: KIM, PYOUNGHWAN; KIM, HYUNGYONG; PARK, SEOGKYU; OH, YOUNGKEE; LEE, DEUGHEE; PARK, EUNJIN; KWON, TAEHYOK
To: LG ELECTRONICS INC.
Reel/Frame 027030/0664 →
Priority Claims (2)
KR 10-2010-0090798 · Sep 15, 2010 · national
KR 10-2010-0090799 · Sep 15, 2010 · national
Continuity (1)
Related Publication 20120060301A1 · Mar 15, 2012