Washing machine

Patent metadata

Field	Value
Publication number	US-9567702-B2
Application number	US-201514817456-A
Country	US
Kind code	B2
Filing date	Aug 4, 2015
Priority date	Aug 5, 2014
Publication date	Feb 14, 2017
Grant date	Feb 14, 2017

Abstract

A washing machine includes a tub for containing washing water, a drum rotatably disposed in the tub, a chamber communicating with the tub through a plurality of openings in which washing water is introduced from the tub through at least one of the plurality of openings and the introduced washing water is discharged to the tub through at least one of the remaining openings, and a water quality detector for detecting the quality of washing water in the chamber.

First claim

What is claimed is:

1. A washing machine comprising:
a tub to contain washing water;
a drum rotatably provided in the tub;
a chamber that communicates with the tub through a plurality of openings in which washing water is introduced from the tub through at least one of the plurality of openings and the introduced washing water is discharged to the tub through at least one of the other openings;
a detector that detects a quality of washing water in the chamber;
a pump that discharges washing water from the tub;
a chamber discharge hose that connects the chamber and the pump;
a tub discharge hose that connects the tub and the pump; and
a chamber mount to install the chamber and provided at a lower portion of the tub.

2. The washing machine according to claim 1 , wherein the plurality of openings is arranged vertically.

3. The washing machine according to claim 1 , wherein the plurality of openings is arranged horizontally.

4. The washing machine according to claim 1 , wherein at least one of the plurality of openings is positioned below a bottom surface of the tub.

5. The washing machine according to claim 1 , wherein the plurality of openings is arranged vertically and horizontally toward a lowermost opening from an uppermost opening.

6. The washing machine according to claim 5 , wherein the plurality of openings is arranged such that, the closer the opening is positioned with respect to a vertical center line of the drum, the lower it is positioned.

7. The washing machine according to claim 1 , wherein the detector is positioned to be lower than any of the plurality of openings.

8. The washing machine according to claim 7 , wherein the chamber includes a drain outlet that communicates with the pump.

9. The washing machine according to claim 8 , wherein the drain outlet is positioned to be lower than the detector.

10. The washing machine according to claim 8 , further including a check valve, which closes the drain outlet upon deactivation of the pump and opens the drain outlet upon activation of the pump.

11. The washing machine according to claim 10 , wherein the check valve includes an inlet through which washing water is introduced from the chamber, and an outlet through which the washing water introduced through the inlet is discharged and which is expanded by hydraulic pressure upon activation of the pump.

12. The washing machine according to claim 11 , wherein the check valve is made of a flexible material having elasticity.

13. The washing machine according to claim 8 , wherein the chamber includes first and second chamber housings, which are combined with each other to define a space to receive washing water, in which the first chamber housing is provided with the plurality of openings and the second chamber housing is provided with the installer to install the detector.

14. The washing machine according to claim 1 , wherein the detector includes a turbidity sensor.

15. The washing machine according to claim 1 , wherein the detector includes an electrode sensor.

16. The washing machine according to claim 1 , wherein the detector includes a turbidity sensor and an electrode sensor.

17. The washing machine according to claim 1 , wherein a lowermost portion of a bottom of the tub is provided in the chamber mount.

18. The washing machine according to claim 1 , wherein the chamber mount is provided with a plurality of mounting holes that corresponds to the plurality of openings, respectively.

19. The washing machine according to claim 1 , wherein the chamber includes a plurality of pipes that corresponds to the plurality of openings to connect the tub and the chamber.

Assignees

• Lg Electronics Inc

Inventors

• Seo Bosung
• Oh Sooyoung
• Kim Changoh

Classifications

• D06F34/22 Primary

  Condition of the washing liquid, e.g. turbidity · CPC title

• D06F39/086

  Arrangements for avoiding detergent wastage in the discharge conduit · CPC title

• D06F39/004 Primary

  Textiles & Paper · mapped topic

• D06F39/081

  Safety arrangements for preventing water damage · CPC title

• D06F39/083

  Liquid discharge or recirculation arrangements · CPC title