Washing machine

Patent metadata

Field	Value
Publication number	US-2018282930-A1
Application number	US-201615761036-A
Country	US
Kind code	A1
Filing date	Sep 29, 2016
Priority date	Sep 30, 2015
Publication date	Oct 4, 2018
Grant date	—

Abstract

Provided is a washing machine. The washing machine includes: a washing drum accommodated in an outer drum 3; a motor for rotating the washing drum; a water tank for receiving detergent water containing detergents from the outer drum; a circulating path for taking the detergent water and injecting the detergent water from an upper side into the washing drum; a pump for taking the detergent water in the water tank into the circulating path and lifting the detergent water in the circulating path; and a control part for executing a washing operation including a dewatering washing process. In the dewatering washing process, circulating treatment, impregnation treatment and dewatering treatment are repeatedly conducted.

First claim

What is claimed is:

1 . A washing machine, comprising:
an outer drum, which is capable of storing water; a washing drum, which is accommodated in the outer drum and is used for accommodating washings, wherein the washing drum has an axis extending longitudinally and a plurality of through holes, the through holes are used for enabling water to flow between the washing drum and the outer drum; a motor, which is used for rotating the washing drum; a water tank, which is connected to the outer drum and is used for receiving detergent water containing detergents from the outer drum; a circulating path, which is used for taking the detergent water from the water tank and injecting the detergent water into the washing drum from an upper side of the washing drum; a pump, which is used for taking the detergent water in the water tank into the circulating path and lifting the detergent water in the circulating path; and an execution unit, which is used for executing a washing operation, wherein the washing operation comprises a dewatering washing process which repeatedly conducts circulating treatment, impregnation treatment and dewatering treatment, the circulating treatment is to drive the pump to enable the detergent water in the water tank to circulate between the washing drum and the circulating path and to sprinkle the detergent water on the washings in the washing drum; the impregnation treatment is to stop driving the pump after the circulating treatment and to enable the detergent water to impregnate the washings in the washing drum and return to the water tank; the dewatering treatment is to drive the motor to rotate the washing drum to dewater the washings after the impregnation treatment.

2 . The washing machine according to claim 1 , wherein
the execution unit drives the motor in at least one circulating treatment to rotate the washing drum.

3 . The washing machine according to claim 1 , wherein
the water tank is provided with an exhaust hole; and the washing machine comprises an exhaust pipe, which has one end part connected to the exhaust hole and another end part connected to an upper part of the outer drum.

4 . The washing machine according to claim 1 , wherein
the washing machine comprises: a water supply path, which is used for supplying water for the washing drum; and a detergent accommodating part, which is connected to the water supply path and is used for accommodating the detergents, wherein the water supply path has a discharge opening, the discharge opening is used for discharging the water that passes through the detergent accommodating part and flows through the water supply path towards a position staggered with the washings in the washing drum.

5 . The washing machine according to claim 1 , wherein
the circulating path comprises a main flow path and a branch flow path, the main flow path has a discharge opening facing the washing drum from an upper side, the branch flow path branches from the main flow path and is connected to one of the outer drum and the water tank, wherein the washing machine comprises a reversing valve, the reversing valve is used for switching a flow of the detergent water in the circulating path to one of the main flow path and the branch flow path.

6 . The washing machine according to claim 1 , wherein
the washing machine comprises: a flow path, which is used for connecting the outer drum to the water tank, and a valve, which is used for opening and closing the flow path, wherein the execution unit closes the valve in at least one impregnation treatment to accumulate the detergent water in the washing drum.

7 . The washing machine according to claim 2 , wherein
the water tank is provided with an exhaust hole; and the washing machine comprises an exhaust pipe, which has one end part connected to the exhaust hole and another end part connected to an upper part of the outer drum.

8 . The washing machine according to claim 2 , wherein
the washing machine comprises: a water supply path, which is used for supplying water for the washing drum; and a detergent accommodating part, which is connected to the water supply path and is used for accommodating the detergents, wherein the water supply path has a discharge opening, the discharge opening is used for discharging the water that passes through the detergent accommodating part and flows through the water supply path towards a position staggered with the washings in the washing drum.

9 . The washing machine according to claim 3 , wherein
the washing machine comprises: a water supply path, which is used for supplying water for the washing drum; and a detergent accommodating part, which is connected to the water supply path and is used for accommodating the detergents, wherein the water supply path has a discharge opening, the discharge opening is used for discharging the water that passes through the detergent accommodating part and flows through the water supply path towards a position staggered with the washings in the washing drum.

10 . The washing machine according to claim 2 , wherein
the circulating path comprises a main flow path and a branch flow path, the main flow path has a discharge opening facing the washing drum from an upper side, the branch flow path branches from the main flow path and is connected to one of the outer drum and the water tank, wherein the washing machine comprises a reversing valve, the reversing valve is used for switching a flow of the detergent water in the circulating path to one of the main flow path and the branch flow path.

11 . The washing machine according to claim 3 , wherein
the circulating path comprises a main flow path and a branch flow path, the main flow path has a discharge opening facing the washing drum from an upper side, the branch flow path branches from the main flow path and is connected to one of the outer drum and the water tank, wherein the washing machine comprises a reversing valve, the reversing valve is used for switching a flow of the detergent water in the circulating path to one of the main flow path and the branch flow path.

12 . The washing machine according to claim 4 , wherein
the circulating path comprises a main flow path and a branch flow path, the main flow path has a discharge opening facing the washing drum from an upper side, the branch flow path branches from the main flow path and is connected to one of the outer drum and the water tank, wherein the washing machine comprises a reversing valve, the reversing valve is used for switching a flow of the detergent water in the circulating path to one of the main flow path and the branch flow path.

13 . The washing machine according to claim 2 , wherein
the washing machine comprises: a flow path, which is used for connecting the outer drum to the water tank, and a valve, which is used for opening and closing the flow path, wherein the execution unit closes the valve in at least one impregnation treatment to accumulate the detergent water in the washing drum.

14 . The washing machine according to claim 3 , wherein
the washing machine comprises: a flow path, which is used for connecting the outer drum to the water tank, and a valve, which is used for opening and closing the flow path, wherein the execution unit closes the valve in at least one impregnation treatment to accumulate the detergent water in the washing drum.

15 . The washing machine according to claim 4 , wherein
the washing machine comprises: a flow path, which is used for connecting the outer drum to the water tank, and a valve, which is us

Assignees

• Qingdao Haier Washing Mach Co
• Aqua Co Ltd

Inventors

• Nishiura Naoto
• Tanaka Hiroyuki
• Kawaguchi Tomonari
• Yoneda Masanori
• Arai Hideyuki
• Onishi Katsuji

Classifications

• D06F23/04

  and rotating or oscillating about a vertical axis · CPC title

• D06F37/40

  for driving the receptacle and an agitator or impeller, e.g. alternatively {(D06F37/304, D06F37/308 take precedence)} · CPC title

• D06F39/02 Primary

  Devices for adding soap or other washing agents · CPC title

• D06F39/083

  Liquid discharge or recirculation arrangements · CPC title