Cleaner

Patent metadata

Field	Value
Publication number	US-11517165-B2
Application number	US-202016945205-A
Country	US
Kind code	B2
Filing date	Jul 31, 2020
Priority date	Jan 13, 2020
Publication date	Dec 6, 2022
Grant date	Dec 6, 2022

Abstract

A cleaner is disclosed, which comprises a main body including an suction inlet through which air containing dust enters, a dust separator provided to separate dust from the air while the air entering from the suction inlet is moving, a first dust collector configured to collect the dust separated by the dust separator, a cyclone portion configured to rotate the air to separate the dust from the air, and a second dust collector collecting the dust separated by the cyclone portion. The dust separator is provided with a plurality of plate shaped members arranged at a predetermined angle with respect to a moving direction of the air, and arranged to be spaced apart from one another to move the air.

First claim

What is claimed is:

1. A cleaner comprising:
a main body including a suction inlet configured to allow air containing dust to enter into the main body;
a dust separator configured to separate dust from the air;
a first dust collector configured to collect the dust separated by the dust separator;
a cyclone portion configured to rotate the air, which has passed through the dust separator, to separate additional dust from the air; and
a second dust collector configured to collect the additional dust separated by the cyclone portion,
wherein the dust separator includes a plurality of plate shaped members arranged to have a predetermined angle with respect to a moving direction of the air, and the plurality of plate shaped members are arranged to be spaced apart from one another,
wherein the plurality of plate shaped members are arranged in parallel with each other between tapered portions, and
wherein the plurality of plate shaped members are provided such that a length thereof in a width direction of the main body becomes shorter toward the suction inlet.

2. The cleaner of claim 1 , wherein the cyclone portion comprises a plurality of cyclone portions arranged along a direction perpendicular to the moving direction of the air.

3. The cleaner of claim 2 , wherein the tapered portions extend from both sides of the suction inlet to both sides of the cyclone portion, the tapered portions being tapered along a width direction of the main body.

4. The cleaner of claim 1 , wherein the cyclone portion includes:
a communication hole configured to allow the air to enter the cyclone portion; and
an extension portion extending from the communication hole to the suction inlet, and
wherein the plurality of plate shaped members are spaced apart from an end of the extension portion adjacent to the suction inlet.

5. The cleaner of claim 4 , wherein the cyclone portion further includes:
a vane configured to rotate the air in the communication hole;
a cyclone housing disposed around the vane; and
a discharge hole disposed in the cyclone housing to guide the air from which dust is separated.

6. The cleaner of claim 5 , wherein the cyclone housing has a conical pillar shape.

7. The cleaner of claim 1 , wherein the first dust collector is arranged below the dust separator with respect to a height direction of the main body, and the main body further includes a protrusion extending from a lower side of the suction inlet to the inside of the main body, the protrusion being configured to at least partially restrict the dust entering the first dust collector from moving to the cyclone portion.

8. The cleaner of claim 1 , wherein the plurality of plate shaped members are arranged spaced apart at predetermined intervals along a direction from the suction inlet towards the dust separator, and the dust separator comprises a plurality of dust separators.

9. The cleaner of claim 8 , wherein the plurality of dust separators are arranged to partially overlap with each other.

Assignees

• Lg Electronics Inc
• Univ Hanyang Ind Univ Coop Found

Inventors

• Lee Seungyeop
• Hyun Kietak
• Lee Changgun
• Yook Sejin
• LIM Junhyung

Classifications

• A47L9/102 Primary

  Dust separators (cyclones A47L9/16) · CPC title

• A47L9/1683

  Dust collecting chambers; Dust collecting receptacles · CPC title

• A47L9/104

  Means for intercepting small objects · CPC title

• A47L9/1608

  Cyclonic chamber constructions · CPC title

• A47L9/122

  flat · CPC title