Laundry treating machine

Patent metadata

Field	Value
Publication number	US-10513813-B2
Application number	US-201615333376-A
Country	US
Kind code	B2
Filing date	Oct 25, 2016
Priority date	Apr 6, 2012
Publication date	Dec 24, 2019
Grant date	Dec 24, 2019

Abstract

A laundry treating machine is provided. The laundry treating machine may include a tub to receive wash water, a drum rotatably provided in the tub, an air supply device to supply air to the tub, a lint filter to filter lint from the air circulated by the air supply device, a filter cleaning device to supply cleaning water to the lint filter to remove the lint from the lint filter, and a cooling water supply device to supply cooling water to an inner surface of the tub such that moisture contained in air is condensed at the inner surface of the tub.

First claim

What is claimed is:

1. A laundry machine, comprising:
a tub to receive wash water;
a drum rotatably provided in the tub;
an air supply device provided at an upper position of the tub to heat air discharged from the tub and introduce the heated air into the tub and the air supply device includes an air collection port provided through an outer circumference of the tub, a fan located at an upper position of the air collection port to move air, a heating duct to heat the air moved by the fan and an air discharge port to supply the air heated by the heating duct to a front of the tub; and
a cooling water supply device to supply cooling water to a rear inner surface of the tub such that the rear inner surface of the tub serves as a condensing surface and the cooling water allows condensed water to be formed at the condensing surface and the cooling water supply device includes a cooling water nozzle fixed to the tub to supply the cooling water to the rear inner surface of the tub, a cooling water line through which the cooling water is supplied to the cooling water nozzle and a cooling water valve to control a supply of the cooling water to the cooling water line,
wherein the cooling water supply nozzle is provided at a position opposite the air collection port and at an angle between 20 to 40 degrees with respect to a vertical axis passing through a center of a rotary shaft of the laundry machine, and
wherein the cooling water nozzle includes:
a first end to which the cooling water line is directly connected;
a second end fixed through the tub and forming a nozzle to spray the cooling water to the rear inner surface of the tub;
a catch at which the cooling water nozzle is mounted to the tub; and
a deflection plate provided at the second end to be angled downward toward the rear inner surface of the tub to deflect and spread the cooling water directly on an upper portion of the rear inner surface of the tub, and
wherein the rear inner surface of the tub includes a first portion provided around the rotary shaft of the laundry machine, a second portion provided around a circumference of the first portion, and a gasket provided between the first portion and the second portion, the upper portion being provided on the second portion.

2. The laundry machine of claim 1 , wherein the cooling water supply device is provided at a rear upper position of the tub to supply the cooling water to cool the rear inner surface of the tub.

3. The laundry machine of claim 1 , wherein the cooling water supply device is provided at a position that is spaced from a center of a rear upper side of the tub in a circumferential direction.

4. The laundry machine of claim 1 , wherein the cooling water supply device distributes the cooling water to deflect and spread throughout the rear inner surface of the tub.

5. The laundry machine of claim 1 , further comprising:
a lint filter provided in the air collection port to filter foreign matter and lint contained in air passing through the air collection port; and
a filter cleaner provided between the fan and the lint filter that supplies the cleaning water to the lint filter so as to remove the foreign matter and lint accumulated on the lint filter.

6. The laundry machine of claim 5 , further comprising:
a water supply valve to control a supply of water to the tub; and
a cleaning water valve to control a supply of the cleaning water to the filter cleaner.

Assignees

• Lg Electronics Inc

Inventors

• Doh Youngjin
• Lee Jihong
• Namgoong Hong
• Lee Kyuhwan

Classifications

• D06F58/24

  Condensing arrangements · CPC title

• B01D2201/081

  using nozzles or suction devices · CPC title

• D06F39/088

  Liquid supply arrangements · CPC title

• B01D2201/084

  Nozzles placed on the filtrate side of the filtering element · CPC title

• D06F37/04

  adapted for rotation or oscillation about a horizontal or inclined axis · CPC title