Cleaner

Patent metadata

Field	Value
Publication number	US-11064855-B2
Application number	US-201716328108-A
Country	US
Kind code	B2
Filing date	Aug 18, 2017
Priority date	Aug 25, 2016
Publication date	Jul 20, 2021
Grant date	Jul 20, 2021

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 vacuum cleaner comprising:
a suction unit configured to guide air and dust;
a main body comprising a first cyclone unit configured to separate the air and the dust, which are suctioned through the suction unit, from each other and a second cyclone unit configured to separate 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,
wherein the guide unit comprises:
a filter part surrounding the second cyclone unit and configured to filter the air that is separated from the dust in the first cyclone unit while flowing to the second cyclone unit, and
a storage unit connected to a lower portion of the filter part and defining the second dust storage part, and

wherein the guide unit is separably coupled to the main body, and based on the guide unit being separated from the main body, a dust discharge part of the second cyclone unit is exposed to an outside, and
wherein the filter part and the storage unit are separated from the second cyclone unit together.

2. The vacuum 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.

3. The vacuum cleaner of claim 1 , wherein an air inlet of the second cyclone unit is disposed lower than an axis in a longitudinal direction of the suction unit.

4. The vacuum cleaner of claim 1 , wherein the main body comprises a dust container comprising 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.

5. The vacuum cleaner of claim 4 , wherein the guide unit further comprises a cleaning part extending to an inner circumferential surface of the dust container.

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

7. The vacuum cleaner of claim 6 , 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.

8. The vacuum cleaner of claim 7 , wherein each of the sealing member and the contact rib has a ring shape, and
the dust discharge part of the second cyclone unit is disposed in a region defined by the contact rib in the state in which the contact rib comes into contact with the bottom surface of the sealing member.

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

10. The vacuum cleaner of claim 9 , wherein the dust discharge part of the second cyclone unit and the sealing member are disposed inside the inner body, and
the contact rib protrudes from the inner body.

11. The vacuum cleaner of claim 9 , further comprising at least one sealer disposed between the inner body and the outer body.

12. The vacuum cleaner of claim 1 , wherein the filter part further comprises a cleaning part extending outward from an upper end of the filter part.

13. The vacuum cleaner of claim 12 , wherein:
the cleaning part inclinedly extends horizontally or upward from the filter part, and
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 inner circumferential surface of the first dust storage part.

14. The vacuum cleaner of claim 1 , wherein:
the main body further comprises a discharge guide configured to guide the air discharged from the second cyclone unit, and
the filter part is separably coupled to the discharge guide.

15. The vacuum cleaner of claim 14 , wherein the discharge guide comprises a first coupling part to be coupled to the filter part,
the filter part comprises a second coupling part to be coupled to the first coupling part, and
the second coupling part comprises a first groove into which the first coupling part is accommodated and a second groove extending from the first groove in a direction crossing that in which the first coupling part is accommodated into the first groove so that coupling of the first coupling part and the second coupling part is completed by an rotational operation of the filter part.

16. A vacuum cleaner comprising:
a suction unit configured to guide air and dust;
a main body comprising a first cyclone unit configured to separate the air and the dust, which are suctioned through the suction unit, from each other and a second cyclone unit configured to separate the dust from the air discharged from the first cyclone unit;
a sealing member installed on the second cyclone unit; and
a guide unit separably coupled to the main body,
wherein the guide unit covers at least a portion of the second cyclone unit in the state in which the guide unit is coupled to the main body,
wherein the guide unit comprises:
a filter part surrounding the second cyclone unit and configured to filter the air that is separated from the dust in the first cyclone unit while flowing to the second cyclone unit,
a storage unit connected to a lower portion of the filter part and including an inner body coupled to the filter part and an outer body that separably surrounds the inner body, and
a contact rib coming into contact with the sealing member in the state in which the guide unit is coupled to the main body,
wherein a dust discharge part of the second cyclone unit and the sealing member are disposed inside the inner body, and the contact rib protrudes from the inner body.

17. The vacuum cleaner of claim 16 , wherein, based on the guide unit being separated from the main body, the dust discharge part of the second cyclone unit is exposed to an outside.

18. The vacuum cleaner of claim 16 , wherein the guide unit comprises an opening through which the air primarily separated from the dust in the first cyclone unit passes.

Assignees

• Lg Electronics Inc

Inventors

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

Classifications

• A47L9/20

  Means for cleaning filters · CPC title

• A47L9/1683

  Dust collecting chambers; Dust collecting receptacles · CPC title

• A47L9/16

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

• A47L5/24 Primary

  Hand-supported suction cleaners · CPC title