Laundry machine and method for cleaning lint filter of laundry machine

Patent metadata

Field	Value
Publication number	US-9487906-B2
Application number	US-201213985519-A
Country	US
Kind code	B2
Filing date	Apr 5, 2012
Priority date	Apr 5, 2011
Publication date	Nov 8, 2016
Grant date	Nov 8, 2016

Abstract

The present invention relates to a laundry machine in which the lint filter can be cleaned even at low water pressure and a method for cleaning the lint filter, wherein the invention comprises: a tub in which washing water is accommodated; a drum which is rotatably disposed in said tub; an air circulating unit which supplies air to said tub; an air returning hole which returns the air of said tub to said air circulating unit; a lint filter which filters lint contained in the air which is circulated by said air circulating unit; and a filter cleaning unit which sprays the washing water through a plurality of nozzle holes such that said lint is separated from said lint filter.

First claim

The invention claimed is:

1. A method of washing a lint filter of a laundry machine, the laundry machine comprising a wash water line configured to supply wash water, a wash water valve configured to open or close the wash water line, and a filter washing unit configured to eject the wash water to the lint filter so as to clean the lint filter, the method comprising a washing stroke including intermittent supply of the wash water under control of the wash water valve,
wherein the washing stroke is performed before a rinsing stroke or a drying stroke of the laundry machine, and
wherein the drying stroke includes:
sensing an amount of laundry;
preliminarily drying the laundry by supplying hot air in a state in which the laundry is stationary;
dehydrating the laundry;
drying the laundry by supplying hot air while moving the laundry; and
drying the laundry by supplying cold air while moving the laundry.

2. The method according to claim 1 , wherein the washing stroke is performed before the sensing of the amount of laundry, or between the hot air drying and the cold air drying.

3. The method according to claim 1 , wherein the intermittent supply of wash water includes intermittently ejecting the wash water for 1 to 2 seconds at an interval of 1 to 2 seconds.

Assignees

• Hong Sangwook
• Ko Cheolsoo
• Kim Hyojun
• Lg Electronics Inc

Inventors

• Hong Sangwook
• Ko Cheolsoo
• Kim Hyojun

Classifications

• D06F58/22 Primary

  Lint collecting arrangements · CPC title

• D06F37/22

  in machines with a receptacle rotating or oscillating about a horizontal axis · CPC title

• D06F39/088

  Liquid supply arrangements · CPC title

• D06F39/10 Primary

  Filtering arrangements · CPC title

• D06F25/00

  Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air  (control of washing or of washing and drying D06F33/00, D06F34/00; domestic laundry dryers D06F58/00) · CPC title