Washing machine

Patent metadata

Field	Value
Publication number	US-11286611-B2
Application number	US-201816493960-A
Country	US
Kind code	B2
Filing date	Mar 16, 2018
Priority date	Mar 16, 2017
Publication date	Mar 29, 2022
Grant date	Mar 29, 2022

Abstract

A washing machine comprises a cabinet, a washing drum rotatably arranged in the cabinet, wherein the washing drum is a water holding drum to accommodate washing water, a water drainage channel which discharges water from top to bottom is arranged at an inner side of a peripheral wall of the washing drum, an upper end of the water drainage channel communicates with the inside of a washing drum, and a lower end communicates with the outside of the washing drum. The water drainage channel comprises a water channel casing and at least part of a washing drum wall, and one side, facing the washing drum wall, of the water channel casing is provided with a cut-through groove, the water channel casing is fastened on the washing drum wall, and forms a water flow channel together with the washing drum wall.

First claim

The invention claimed is:

1. A washing machine, comprising:
a cabinet;
a washing drum, being rotatably arranged in the cabinet and being a water holding drum to accommodate washing water, wherein a lower part of the washing drum is provided with a water drainage outlet;
a water drainage channel, being arranged at an inner side of a peripheral wall of the washing drum and discharging water from top to bottom, wherein an upper end of the water drainage channel is communicated with inside of the washing drum, and a lower end of the water drainage channel is communicated with the water drainage outlet of the washing drum, such that washing water, which rises under an effect of an eccentric force, in the washing drum is guided from top to bottom to the water drainage outlet via the water drainage channel and is discharged;
a water collecting ring arranged on an upper end of the washing drum; and
a dehydration outlet which is communicated with the inside of the washing drum is arranged at a side, facing the washing drum, of the water collecting ring, and the upper end of the water drainage channel is communicated with the water collecting ring, to guide and discharge water in the water collecting ring,
the water collecting ring is internally provided with a water retaining plate which guides washing water to enter into the water drainage channel after changing direction, and the water retaining plate is arranged directly above the water inlet of the water drainage channel, and is set to be inclined at a certain angle with a horizontal surface at which the water collecting ring is located, and configured so when washing water flows in the water collecting ring in an annular manner, washing water collides onto the water retaining plate, flows downwards along a drum wall and enters into the water drainage pipe.

2. The washing machine according to claim 1 , wherein the upper end of the water drainage channel is provided with a water inlet, the water drainage outlet is arranged at a lower part of the peripheral wall of the washing drum or at a bottom of the washing drum, and the water drainage channel defines a water drainage cavity which is communicated with the water inlet and the water drainage outlet.

3. The washing machine according to claim 2 , wherein the water drainage cavity is defined jointly through an inner peripheral wall surface of the washing drum covered by the water drainage channel.

4. The washing machine according to claim 1 , wherein the water drainage channel comprises a water channel casing and at least part of a washing drum wall, and a side, facing the washing drum wall, of the water channel casing is provided with a cut-through groove, the water channel casing is fastened on the washing drum wall and forms a water flow channel together with the washing drum wall.

5. The washing machine according to claim 4 , wherein the water channel casing is detachably installed on the washing drum.

6. The washing machine according to claim 4 , wherein projections or veins which are used for being in friction contact with clothes are arranged on a side, facing an axis of the washing drum, of the water channel casing.

7. The washing machine according to claim 6 , wherein a lower end of the water drainage channel is connected with the water drainage outlet at the bottom of the washing drum, the water drainage outlet is arranged below an impeller of the washing machine, and the water drainage channel extends to the water drainage outlet.

8. The washing machine according to claim 7 , wherein at least one water drainage channel is provided, or at least two water drainage channels are provided and are arranged at intervals along a circumferential direction of the washing drum.

9. The washing machine according to claim 6 , wherein the water drainage outlet is arranged at the lower part of the peripheral wall of the washing drum, at least one water drainage outlet is provided, at least one water drainage channel is provided, and each water drainage channel covers at least one corresponding water drainage outlet.

10. The washing machine according to claim 9 , wherein at least two water drainage outlets are provided and are arranged at intervals along the circumferential direction of the washing drum, and at least two water drainage channels are provided and are arranged at intervals along the circumferential direction of the washing drum.

11. The washing machine according to claim 1 , wherein a top end of the washing drum is provided with a balancing ring, and the water collecting ring is arranged inside the washing drum and at a lower side of the balancing ring.

12. The washing machine according to claim 1 , wherein a side, facing an axis of the washing drum, of the water collecting ring is a cambered surface, and the cambered surface is gradually bent from bottom to top towards a center of the washing drum along the axial direction of the washing drum;
the water drainage port of the water collecting ring is arranged at an initial end of a bottom part of the cambered surface.

13. The washing machine according to claim 12 , comprising:
a mounting plate installed on a lower part of the washing drum and configured to support the washing drum, wherein the mounting plate is connected with a cabinet via a damping piece.

14. The washing machine according to claim 13 , wherein the mounting plate is provided with a water retaining ring, the water retaining ring extends towards the washing drum, to form a concave cavity structure which accommodates washing water, a lower end of the water drainage channel discharges water to the concave cavity structure, and a bottom part of the concave cavity structure is connected with a water drainage pipe which discharges water out of the washing machine;
a height of the water retaining ring is slightly higher than a bottom surface of the washing drum, and a certain gap is reserved between the water retaining ring and an outer peripheral wall of the washing drum.

15. The washing machine according to claim 14 , wherein a valve plug configured to open and close the water drainage outlet is installed on the mounting plate, and corresponds to the water drainage outlet at the bottom part of the washing drum, and the valve plug is arranged at a radially inner side of the water retaining ring.

16. The washing machine according to claim 15 , wherein the mounting plate is further provided with a locking structure, the locking mechanism is arranged at the bottom part of the washing drum, and is in match with the washing drum, to limit rotation of the washing drum when the water drainage outlet is closed by the valve plug.

17. The washing machine according to claim 16 , comprising:
a power device which drives the washing drum to rotate, wherein the power device is installed at a bottom part of the mounting plate, and comprises a motor and a decelerating clutch, and a rotating shaft of the motor is directly or indirectly connected with the bottom of the washing drum, to drive rotation of the washing drum.

18. The washing machine according to claim 13 , wherein the damping piece comprises a rod and a rod socket, an edge of the mounting plate is provided to match with the rod socket, and the rod socket is arranged at a lower side of the mounting plate.

Assignees

• Qingdao Haier Washing Mach Co
• Qingdao Haier Smart Tech R & D Co Ltd

Inventors

• Lao Chunfeng
• Xu Sheng
• Lv Yanfen
• Hao Xinghui
• Li Yimin
• Wu Di

Classifications

• D06F39/081

  Safety arrangements for preventing water damage · CPC title

• D06F37/30

  Driving arrangements  (control circuits or arrangements D06F34/08) · CPC title

• D06F39/083 Primary

  Liquid discharge or recirculation arrangements · CPC title

• D06F37/145

  ribs or lifters having means for circulating the washing liquid · CPC title

• D06F37/24

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