Cleaner

Patent metadata

Field	Value
Publication number	US-11751739-B2
Application number	US-202117350559-A
Country	US
Kind code	B2
Filing date	Jun 17, 2021
Priority date	Aug 25, 2016
Publication date	Sep 12, 2023
Grant date	Sep 12, 2023

Abstract

A cleaner includes a suction unit guiding air and dust, a main body including a first cyclone unit separating the air and the dust, which are suctioned through the suction unit, from each other and a second cyclone unit separating the dust from the air discharged from the first cyclone unit, and a guide unit disposed in the main body to partition a first dust storage part, in which the dust separated in the first cyclone unit is stored, and a second dust storage part, in which the dust separated in the second cyclone unit is stored, from each other. The guide unit is separably coupled to the main body, and when the guide unit is separated from the main body, a dust discharge part of the second cyclone unit is exposed to the outside.

First claim

What is claimed is:

1. A cleaner comprising:
a suction unit guiding air and dust;
a main body comprising (i) a first cyclone unit separating the air and the dust, which are suctioned through the suction unit, from each other, (ii) a second cyclone unit separating the dust from the air discharged from the first cyclone unit, and (iii) a dust container; and
a guide unit disposed in the main body to partition a first dust storage part, in which the dust separated in the first cyclone unit is received, and a second dust storage part, in which the dust separated in the second cyclone unit is received, from each other,
wherein the guide unit is detachably coupled to the main body and comprises:
a filter part that is configured to separate the air from the dust in the first cyclone unit while the air flows to the second cyclone unit and that surrounds the second cyclone unit,
a storage unit connected to a lower portion of the filter part and defining the second dust storage part in the main body, and
a cleaning part extending from an upper end of the filter part to an inner circumferential surface of the dust container,

wherein, based on the guide unit being separated downward and spaced apart from the main body, a dust discharge part of the second cyclone unit is exposed to an outside of the main body of the cleaner to enable emptying of foreign substances within the dust container.

2. The cleaner of claim 1 , wherein the cleaning part inclinedly extends horizontally or upward from the filter part.

3. The cleaner of claim 1 , wherein the cleaning part has an end coming into contact with an inner circumferential surface of the first dust storage part or disposed adjacent to the first dust storage part.

4. The cleaner of claim 1 , wherein the filter part comprises:
a filter body having a plurality of openings; and
a mesh covering the plurality of openings,
wherein an air inlet of the second cyclone unit is disposed inside the filter part.

5. The cleaner of claim 1 , wherein the cleaning part is provided at the filter part in a circumferential direction of the filter part.

6. The cleaner of claim 1 , wherein the storage unit comprises an inner body coupled to the filter part and an outer body surrounding the inner body.

7. The cleaner of claim 6 , further comprising at least one sealer disposed between the inner body and the outer body.

8. The cleaner of claim 1 , wherein the dust container comprises the first dust storage part,
the dust container includes a discharge opening, and
the guide unit is separated downward from the dust container through the discharge opening.

9. The cleaner of claim 8 , wherein, based on the guide unit being separated downward from the dust container through the discharge opening, the cleaning part is configured to receive the foreign substances within the dust container.

10. The cleaner of claim 9 , wherein the guide unit is configured to, based on the guide unit being separated downward from the dust container through the discharge opening, remove the foreign substances in the cleaning part to the outside of the main body of the cleaner.

11. The cleaner of claim 1 , wherein a sealing member is disposed on the second cyclone unit, and
the guide unit comprises a contact rib coming into contact with the sealing member.

12. The cleaner of claim 11 , wherein the second cyclone unit comprises a sealing member coupling part to which the sealing member is coupled,
the sealing member coupling part is disposed on the second cyclone unit to allow the dust discharge part of the second cyclone unit to pass therethrough,
a sealing member fitting groove into which the sealing member is fitted is defined in a lower portion of the sealing member coupling part, and
the contact rib comes into contact with a bottom surface of the sealing member.

13. The cleaner of claim 12 , wherein the main body further comprises a discharge guide guiding the air discharged from the second cyclone unit, and
the filter part is separably coupled to the discharge guide.

14. The cleaner of claim 13 , wherein the discharge guide includes a first discharge guide seated on an upper portion of the second cyclone unit and a second discharge guide extending upward from the first discharge guide.

15. The cleaner of claim 13 , wherein the filter part comprises: a first coupling part to be coupled to the discharge guide.

Assignees

• Lg Electronics Inc

Inventors

• Hwang Philjae
• Hwang Mantae
• Hwang Jungbae
• SUNG Eunji
• LEE Taekgi

Classifications

• A47L5/24 Primary

  Hand-supported suction cleaners · CPC title

• A47L9/106 Primary

  Dust removal · CPC title

• A47L9/16

  Arrangement or disposition of cyclones or other devices with centrifugal action · CPC title

• A47L9/1683

  Dust collecting chambers; Dust collecting receptacles · CPC title

• A47L9/10

  Filters (in general B01D; cyclones B04C); Dust separators; Dust removal; Automatic exchange of filters {(for machines for cleaning floors A47L11/40)} · CPC title