Washing machine having circulation nozzles

Patent metadata

Field	Value
Publication number	US-11193232-B2
Application number	US-201916455167-A
Country	US
Kind code	B2
Filing date	Jun 27, 2019
Priority date	Jun 27, 2018
Publication date	Dec 7, 2021
Grant date	Dec 7, 2021

Abstract

A washing machine includes a gasket including a gasket body that connects a casing to a tub, and a plurality of nozzles spraying water into a drum. The gasket body has a first area and a second area corresponding to bilateral areas. The nozzles include a first nozzle and a second nozzle disposed in the first area sequentially in a bottom-to-top direction. The washing machine includes a distribution pipe for distribution circulating water to the nozzles, and the distribution pipe includes a first outlet port and a second outlet port for supplying water to first and second nozzles, and a third outlet port and a fourth outlet port for supplying water to third and fourth nozzles. The first and second outlet ports extend parallel to each other, and the third and fourth outlet ports extend parallel to each other.

First claim

What is claimed is:

1. A washing machine comprising:
a casing that defines an entry hole at a front surface of the casing;
a tub disposed in the casing and configured to receive wash water, the tub defining an entrance hole at a front surface of the tub;
a drum rotatably disposed in the tub;
a gasket comprising:
a gasket body that defines a passage connecting the entry hole to the entrance hole of the tub, the gasket body having a first area and a second area corresponding to bilateral areas of the gasket body, and
a plurality of nozzles configured to spray wash water into the drum, the plurality of nozzles comprising a first nozzle and a second nozzle that are arranged in a bottom-to-top direction at the first area of the gasket body;

a pump configured to circulate wash water discharged from the tub; and
a distribution pipe configured to distribute wash water discharged from the pump to the plurality of nozzles,
wherein the distribution pipe comprises:
an inlet port connected to the pump and configured to receive wash water discharged from the pump,
a first conduit part that is disposed at the first area on an outer circumferential surface of the gasket body and extends along the outer circumferential surface of the gasket body from the inlet port, and

a first outlet port and a second outlet port that protrude from the first conduit part toward the outer circumferential surface of the gasket body, that are coupled to the gasket, and that are arranged in the bottom-to-top direction, the first and second outlet ports being connected to the first and second nozzles, respectively, and extending in parallel to each other.

2. The washing machine of claim 1 , wherein the first outlet port is disposed below a half point of the gasket body corresponding to a half of a height of the gasket body, and wherein the second outlet port is disposed above the half point of the gasket body.

3. The washing machine of claim 1 , wherein a horizontal distance between the first outlet port and a vertical line passing through a center of the gasket body is greater than a horizontal distance between the second outlet port and the vertical line.

4. The washing machine of claim 1 , wherein the first conduit part comprises an inner circumferential part that defines a first flat surface facing the gasket body and having a flat shape, and
wherein the first outlet port protrudes from the first flat surface toward the gasket body.

5. The washing machine of claim 4 , wherein the first outlet port extends in a direction orthogonal to the first flat surface.

6. The washing machine of claim 1 , wherein the first conduit part comprises an inner circumferential part that defines a second flat surface facing the gasket body and having a flat shape, and
wherein the second outlet port protrudes from the second flat surface toward the gasket body.

7. The washing machine of claim 6 , wherein the second outlet port extends in a direction orthogonal to the second flat surface.

8. The washing machine of claim 1 , wherein a cross-sectional flow area of the second outlet port is greater than a cross-sectional flow area of the first outlet port.

9. The washing machine of claim 1 , wherein the gasket further comprises a plurality of port receiving pipes that protrude from the outer circumferential surface of the gasket body, the plurality of port receiving pipes being configured to receive the first and second outlet ports, respectively, and
wherein the plurality of port receiving pipes are configured to communicate with the plurality of nozzles, respectively.

10. The washing machine of claim 1 , wherein the plurality of nozzles further comprises a third nozzle and a fourth nozzle that are arranged in the bottom-to-top direction at the second area of the gasket body, and wherein the distribution pipe comprises: a second conduit part that is disposed at the second area on the outer circumferential surface of the gasket body and extends along the outer circumferential surface of the gasket body from the inlet port, and a third outlet port and a fourth outlet port that protrude from the second conduit part toward the outer circumferential surface of the gasket body, that are coupled to the gasket, that are arranged in the bottom-to-top direction, the third and fourth outlet ports being connected to the third and fourth nozzles, respectively, and extending in parallel to each other.

11. The washing machine of claim 10 , wherein the first outlet port, the second outlet port, the third outlet port, and the fourth outlet port extend in parallel to one another.

12. The washing machine of claim 10 , wherein the first outlet port is disposed at a position corresponding to a height of the third outlet port with respect to a lowest point of the gasket body, and
wherein the second outlet port is disposed at a position corresponding to a height of the fourth outlet port with respect to the lowest point of the gasket body.

13. The washing machine of claim 10 , wherein the first outlet port and the third outlet port are disposed symmetrically with respect to a reference line that bilaterally divides the gasket body.

14. The washing machine of claim 13 , wherein the second outlet port and the fourth outlet port are disposed symmetrically with respect to the reference line.

15. The washing machine of claim 10 , wherein a cross-sectional flow area of the fourth outlet port is greater than a cross-sectional flow area of the third outlet port.

16. The washing machine of claim 1 , further comprising a circulation pipe that connects the inlet port of the distribution pipe to the pump.

17. The washing machine of claim 1 , wherein the first outlet port and the second outlet port extend from the first conduit part in a same direction.

18. The washing machine of claim 1 , wherein the first outlet port and the second outlet port extend in a horizontal direction.

19. A washing machine comprising:
a casing that defines an entry hole at a front surface of the casing;
a tub disposed in the casing and configured to receive wash water, the tub defining an entrance hole at a front surface of the tub;
a drum rotatably disposed in the tub;
a gasket comprising:
a gasket body that defines a passage connecting the entry hole to the entrance hole of the tub, the gasket body having a first area and a second area corresponding to bilateral areas of the gasket body, and
a plurality of nozzles configured to spray wash water into the drum, the plurality of nozzles comprising a first nozzle and a second nozzle that are arranged in a bottom-to-top direction at the first area of the gasket body;

a pump configured to circulate wash water discharged from the tub;
a first circulation pipe configured to guide wash water discharged from the pump; and
a first distribution pipe configured to distribute, to the first nozzle and the second nozzle, wash water guided through the first circulation pipe,
wherein the first distribution pipe comprises:
a first inlet port connected to the first circulation pipe and configured to receive wash water discharged from the pump,
a first conduit part that is disposed at the first area on an outer circumferential surface of the gasket body and extends upward along the outer circumferential surface of the gasket body from the first inlet port, and
a first outlet port and a second outlet port that protrude from the first conduit part toward the outer circumferential surface of the gasket body, that are coupled to the gasket, and that are arranged in the bottom-to-top directi

Assignees

• Lg Electronics Inc

Inventors

• Jang Hosung
• Kim Kwanghyun
• Kim Sunghoon
• Choi Jaehyun
• Kang Yohwan
• Kim Hansol
• Ryu Hwanchan
• Lee Hyunjae

Classifications

• Y02B40/00

  Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers · CPC title

• D06F39/083

  Liquid discharge or recirculation arrangements · CPC title

• D06F39/085

  Arrangements or adaptations of pumps · CPC title

• D06F39/088

  Liquid supply arrangements · CPC title

• D06F37/04

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