Laundry treating apparatus and method for controlling the same

Patent metadata

Field	Value
Publication number	US-10072370-B2
Application number	US-201414185609-A
Country	US
Kind code	B2
Filing date	Feb 20, 2014
Priority date	Apr 17, 2013
Publication date	Sep 11, 2018
Grant date	Sep 11, 2018

Abstract

The present invention relates to a method for controlling a laundry treating apparatus including a washing course for eliminating dirt or contaminants from laundry loaded in a drum, a washing-dehydrating course for eliminating water elements from the laundry having the washing course by accelerating the drum; and a rinsing course performed after the washing-dehydrating course, the rinsing course for eliminating detergent used in the washing course and remaining dirt or contaminants of the laundry by rotating the drum, wherein the drum is decelerated down to a rinsing RPM higher than 0 RPM together with finishing of the washing-dehydrating course and the rinsing course starts at the rinsing RPM.

First claim

What is claimed is:

1. A method for controlling a laundry treating apparatus comprising:
a course determining an amount of laundry stored in a drum;
a water supplying course supplying washing water to a tub;
a washing course for eliminating dirt or contaminants from laundry loaded in the drum by rotating the drum located inside of the tub;
a washing-dehydrating course for eliminating water elements from the laundry having the washing course by accelerating the drum;
a drainage course for draining washing water held in the drum by switching on a drainage pump, the drainage course performed during the washing-dehydrating course; and
a rinsing course performed after the washing-dehydrating course, the rinsing course for eliminating detergent used in the washing course and remaining dirt or contaminants of the laundry by rotating the drum,
wherein the drum is decelerated down to a rinsing RPM higher than 0 RPM together with finishing of the washing-dehydrating course and the rinsing course starts at the rinsing RPM,
wherein the washing-dehydrating course comprises:
a preparing step where the drum located inside of the tub containing the washing water accelerates in an off-state of the drainage pump up to a drainage RPM above a horizontal resonance RPM which generates vibration in a vertical direction based on the determined amount of laundry with respect to a shaft of the drum and keeps rotating at the drainage RPM in an off-state of the drainage pump,

wherein the drainage course is performed after the preparing step, and
wherein the drainage RPM is inversely proportional to the amount of laundry loaded in the drum.

2. The method for controlling the laundry treating apparatus according to claim 1 , wherein washing water and detergent are provided to the drum during the washing course, and washing water is provided to the drum during the rinsing course.

3. The method for controlling the laundry treating apparatus according to claim 1 , wherein the rotation number of the drum is maintained at the rinsing RPM while the rinsing course is performed.

4. The method for controlling the laundry treating apparatus according to claim 1 , wherein the rinsing RPM is higher than a horizontal resonance RPM which generates vibration in a vertical direction with respect to a shaft of the drum.

5. The method for controlling the laundry treating apparatus according to claim 1 , wherein the rinsing RPM is a value between a vertical resonance RPM which generates vibration in a direction to a shaft of the drum and a horizontal resonance RPM which generates vibration in a perpendicular to a shaft of the drum.

6. The method for controlling the laundry treating apparatus according to claim 1 , wherein the rinsing course comprises a water supplying step for spraying the washing water toward the drum, using a jet spray provided in a predetermined portion of a tub or a cabinet.

7. The method for controlling the laundry treating apparatus according to claim 6 , wherein the water supplying step is performed in predetermined periods or entire periods of the rinsing course.

8. The method for controlling the laundry treating apparatus according to claim 1 , further comprising:
a rinsing-dehydrating course performed after the rinsing course, the rinsing-dehydrating course for eliminating water elements from the laundry having the rinsing course,
wherein the rinsing-dehydrating course starts from a step of accelerating the drum from the rinsing RPM up to a preset RPM.

9. The method for controlling the laundry treating apparatus according to claim 8 , wherein the RPM of the drum in the entire periods of the rinsing-dehydrating course is higher than the RPM of the drum in the rinsing course.

10. The method for controlling the laundry treating apparatus according to claim 8 , wherein the rinsing-dehydrating course switches on a drainage pump to drain the washing water held in a tub out of the laundry treating apparatus.

Assignees

• Lg Electronics Inc

Inventors

• Kwon Sunku
• Lee Sanghyun
• Koo Bonkwon
• Lee Sunho

Classifications

• D06F35/005

  Methods for washing, rinsing or spin-drying · CPC title

• D06F2204/084

  Textiles & Paper · mapped topic

• D06F2202/12

  Textiles & Paper · mapped topic

• D06F33/02 Primary

  Textiles & Paper · mapped topic

• D06F2204/086

  Textiles & Paper · mapped topic