Inner drum and no-clean washing machine

Patent metadata

Field	Value
Publication number	US-11680356-B2
Application number	US-201916975860-A
Country	US
Kind code	B2
Filing date	Feb 21, 2019
Priority date	Feb 27, 2018
Publication date	Jun 20, 2023
Grant date	Jun 20, 2023

Abstract

An inner drum comprises lifting ribs extending along a generatrix of the inner drum, each being hollow inside, a water-splashing surface of each of the lifting ribs has permeable holes to allow a hollow part of each of the lifting ribs to communicate with an inside of the inner drum, and a rear end of each is arranged close to an inner drum bottom, and provided with a water outlet structure. A no-clean washing machine is installed with the inner drum, the inner drum is a closed container with an opening closed by a door. When the inner drum rotates at a high speed, the washing water is guided towards the inner drum bottom and flows to a center of the bottom along a water guide flow channel on the bottom, and is discharged out of the inner drum through a water outlet connector of a central joint.

First claim

The invention claimed is:

1. An inner drum, comprising:
lifting ribs, provided in the inner drum and extending along a generatrix of the inner drum, wherein
each of the lifting ribs is hollow,
a water-splashing surface of each of the lifting ribs is provided with permeable holes to allow a hollow part of the each of the lifting ribs to communicate with an inside of the inner drum, and
a rear end of each of the lifting ribs is arranged to be proximate to an inner drum bottom, and is provided with a water outlet, wherein
the water outlet is configured as permeable holes arranged on the rear end of each of the lifting ribs, and/or a notch arranged on a junction, connected with a side wall of the inner drum of a washing machine, of the rear end of the lifting rib,
water guide flow channels are arranged on the inner drum bottom and extend towards a center of the inner drum from a periphery;
the center of the inner drum bottom is provided with a central joint communicating with an end of each of the water guide flow channels, and
a rear end of the central joint is provided with a water outlet connector penetrating through the inner drum bottom, and configured such that washing water in the inner drum flows to the central joint through the water guide flow channels under an effect of a centrifugal force, and then flows out of the inner drum through the water outlet connector.

2. The inner drum according to claim 1 , wherein an interior of the lifting ribs communicates with the inner drum via the notch;
one end of each of the water guide flow channels is arranged at the periphery of the inner drum bottom and spaced from the side wall of the inner drum by a gap, the notch is arranged at the junction of the rear end of each corresponding lifting rib and the side wall of the inner drum of the washing machine, and
the notch and the gap are arranged along a same generatrix of the inner drum to correspond to each other.

3. The inner drum according to claim 1 , wherein the hollow part of each of the lifting ribs is provided with a baffle plate which extends along the generatrix of the inner drum,
the baffle plate divides the hollow part of each of the lifting ribs into two parts which are independent to each other, and
the two parts respectively communicate with the inner drum via the permeable holes arranged on the water-splashing surface corresponding to each of the two parts.

4. The inner drum according to claim 3 , wherein the baffle plate extends along a center line of each of the lifting ribs,
the two parts, which are independent to each other at two sides of the baffle plate, respectively communicate with the water outlet arranged on the rear end of each of the lifting ribs, so that washing water in the two parts is discharged into the water guide flow channels through the water outlet arranged on the rear end of each of the lifting ribs.

5. The inner drum according to claim 3 , wherein a first side surface and a second side surface of the baffle plate are both inclined surfaces which incline from the inner drum bottom to an opening of the inner drum along a direction away from an axis of each of the lifting ribs, to guide washing water inside the lifting ribs to converge and flow towards a center of the rear end of each of the lifting ribs along the baffle plate, such that washing water flows into the water guide flow channels.

6. The inner drum according to claim 1 , wherein the central joint is fixedly installed in the center of the inner drum bottom,
the central joint includes a body which is a circular ring or a semi-sphere, the body of the central joint is hollow inside to constitute a water passage chamber,
a periphery of the body of the central joint is provided with a water inlet which is connected with the water guide flow channels correspondingly, to guide washing water in the water guide flow channels into the water passage chamber.

7. The inner drum according to claim 6 , wherein the inner drum is a sealed inner drum without dewatering holes, the inner drum is provided with an inner drum water outlet, including:
the rear end of the central joint provided with a water outlet connector which is set to be coaxial with the central joint and extends backwards;
the water outlet connector penetrates through the inner drum bottom, to allow the water passage chamber to communicate with an outside of the inner drum;
a penetrating end of the water outlet connector is connected with one end part of a water guide sleeve in a plug-in manner; and
another end of the water guide sleeve communicates with a water outlet pipe of the washing machine, for discharging washing water flowing out of the inner drum to an outside of the washing machine.

8. An inner drum according claim 1 , comprising:
lifting ribs, provided in the inner drum and extending along a generatrix of the inner drum, wherein
each of the lifting ribs is hollow,
a water-splashing surface of each of the lifting ribs is provided with permeable holes to allow a hollow part of the each of the lifting ribs to communicate with an inside of the inner drum,
a rear end of each of the lifting ribs is arranged to be proximate to an inner drum bottom, and is provided with a water outlet, and
the water outlet is configured as permeable holes arranged on the rear end of each of the lifting ribs, and/or a notch arranged on a junction, connected with a side wall of the inner drum of a washing machine, of the rear end of the lifting rib;
a water flowing chamber in a sealed state arranged on a rear side of an inner drum supporting piece of the washing machine;
a water outlet joint arranged on the water flowing chamber and fixed with the inner drum supporting piece, wherein
an end part of a water guide sleeve rotating along with the inner drum is inserted into the water flowing chamber, to discharge washing water flowing out of the inner drum along the water guide sleeve.

9. The inner drum according to claim 8 , wherein, a rear side of the inner drum supporting piece of the washing machine has a fixed shelf,
the fixed shelf has a water outlet joint,
the fixed shelf is provided with the water flowing chamber communicated with the water outlet joint,
an end part of the water guide sleeve rotating along with the inner drum is inserted into the water flowing chamber, and is in a dynamic sealing state on a penetrating connecting point, and
the washing water flowing out of the inner drum along the water guide sleeve is guided to the water flowing chamber, and then flows out through the water outlet joint.

10. The inner drum according to claim 9 , wherein, a center of the fixed shelf is provided with a through hole being set to be coaxial with the inner drum,
a mounting sleeve is installed on the through hole, with a barrel-shaped contour, and set to be coaxial with the inner drum,
a front side of the mounting sleeve is connected with the end part of the water guide sleeve in a sealing and plug-in manner,
a rear side is in sealing connection with the water outlet joint, and
a hollow part of the mounting sleeve encircles the water flowing chamber.

11. The inner drum according to claim 10 , wherein a bearing sleeve and a dynamic sealing sleeve are arranged in the mounting sleeve from front to back in sequence,
the bearing sleeve is used for positioning support on the water guide sleeve, and the dynamic sealing sleeve seals the water guide sleeve, and
the bearing sleeve and the dynamic sealing sleeve are correspondingly sleeved on a periphery of the water guide sleeve, and a periphery of the dynamic sealing sleeve is in sealed fit and contact with an inner wall of the mounting sleeve.

12. The inner drum

Assignees

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

Inventors

• Li Yimin
• Lao Chunfeng
• Hao Xinghui
• Wu Di
• Lv Peishi

Classifications

• D06F37/065

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

• D06F39/083 Primary

  Liquid discharge or recirculation arrangements · CPC title

• D06F23/02

  and rotating or oscillating about a horizontal axis · CPC title

• D06F23/025

  with a rotatable imperforate tub · CPC title

• D06F37/04 Primary

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