Laundry machine and controlling method of the same

Patent metadata

Field	Value
Publication number	US-10060063-B2
Application number	US-201615187098-A
Country	US
Kind code	B2
Filing date	Jun 20, 2016
Priority date	Sep 8, 2006
Publication date	Aug 28, 2018
Grant date	Aug 28, 2018

Abstract

The present invention relates to a laundry machine and a controlling method, which can remove allergens on the laundry. A controlling method of a laundry machine includes a mite-killing step of supplying seam to a drum to make laundry exposed to a hot environment at or over a temperature and for or over a duration of time, wherein the temperature and the duration are predetermined enough to kill house dust mites on the laundry; a rinsing step of rinsing the laundry; and a spin-drying step of spin-drying the rinsed laundry. The present invention has an advantageous effect of removing allergens including house dust mites, animal hair and pollens efficiently. In addition, if the house dust mites are killed by using steam, energy efficiency is high and an effect of mite-killing is great.

First claim

The invention claimed is:

1. A controlling method of a laundry machine comprising:
washing laundry, the washing laundry including:
supplying wash water to a tub for washing laundry;
a mite-killing step of making an environment inside a drum by supplying steam into the drum until an ambient temperature or a water temperature inside the tub reaches a preset temperature to make laundry exposed to a mite-killing temperature at, and for or over a preset duration of time, the mite-killing step being performed after the wash water supplying; and
driving the drum until a preset washing time is reached after the supplying of the steam is complete,
wherein the mite-killing is performed for the preset duration of time before and after the ambient temperature or water temperature reaches the preset temperature.

2. The controlling method of claim 1 , wherein the supplying water to the tub is performed until the water reaches a preset water level.

3. The controlling method of claim 2 , wherein the supply of the steam is performed after the supplying of water is complete.

4. The controlling method of claim 2 , wherein detergent is supplied to the tub together with the water.

5. The controlling method of claim 4 , wherein the mite-killing step further includes:
circulating the water inside the tub by using a circulation pump.

6. The controlling method of claim 4 , wherein the water inside the tub is discharged after the driving the drum.

7. The controlling method of claim 4 , wherein the detergent contains protease.

8. The controlling method of claim 1 , wherein the washing laundry further includes:
rinsing laundry after the washing laundry; and
spin-drying the rinsed laundry.

9. The controlling method of claim 8 , wherein the drum is rotated at a speed of or over 800 rpm during the spin-drying step.

10. The controlling method of claim 8 , wherein, in the rinsing the laundry, a process comprising supplying water into the tub, tumbling the laundry, and draining the water is performed more than four times.

11. The controlling method of claim 1 , wherein hot water is supplied to the tub during the supplying of water.

12. The controlling method of claim 1 , wherein the preset ambient temperature or water temperature is 60° C.

13. The controlling method of claim 1 , wherein the mite-killing temperature is 55° C. or over 55° C., and the preset duration of time is 10 minutes or over 10 minutes.

14. A controlling method of a laundry machine comprising:
receiving a selection of an allergy care course from a user;
a mite-killing step of making an environment inside a drum by supplying steam into the drum until an ambient temperature or a water temperature inside the tub reaches a preset temperature to make laundry exposed to a mite-killing temperature at, and for or over a preset duration of time, the mite-killing step including driving the drum until a preset time is reached after the supplying of the steam is complete;
supplying wash water to the tub for washing laundry after the mite-killing step;
washing the laundry using the wash water;
rinsing the washed laundry; and
spin-drying the rinsed laundry,
wherein the mite-killing step is performed for the preset duration of time before and after the ambient temperature or water temperature reaches the preset temperature.

15. The controlling method of claim 14 , wherein detergent and the wash water are mixedly supplied to a tub to perform the washing.

16. The controlling method of claim 15 , wherein the supplied wash water is warm water at 50˜60° C.

17. The controlling method of claim 14 , further comprising a secondary mite-killing step of supplying hot water of about 55˜60° C. and rotating the drum to tumble the laundry after the mite-killing step and before the washing laundry.

18. The controlling method of claim 14 , further comprising soaking the laundry of supplying wash water and steam after the mite-killing step and before the washing laundry.

19. The controlling method of claim 14 , further comprising supplying wash water to a tub for washing laundry, wherein the mite-killing step is performed after the wash water supplying.

20. The controlling method of claim 14 , wherein the mite-killing temperature is 55° C. or over 55° C., and the preset duration of time is 10 minutes or over 10 minutes, and
wherein the preset ambient temperature or water temperature is higher temperature than the mite-killing temperature.

Assignees

• Lg Electronics Inc

Inventors

• Kim Pyoung Hwan
• Shin Su Hee
• Jeong Seong Hae
• Kim Young Soo
• Lee Deug Hee

Classifications

• A61L2/07

  Steam · CPC title

• D06F23/00 Primary

  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  (with further drying means D06F25/00; programme control aspects D06F33/00) · CPC title

• D06F23/02

  and rotating or oscillating about a horizontal axis · CPC title

• A61L2/04

  Heat (radiation A61L2/08) · CPC title

• A01M7/0089

  Regulating or controlling systems (the delivery being related to the movement of a vehicle B05B9/06) · CPC title