Cleaner

Patent metadata

Field	Value
Publication number	US-11612289-B2
Application number	US-202017018302-A
Country	US
Kind code	B2
Filing date	Sep 11, 2020
Priority date	Sep 30, 2019
Publication date	Mar 28, 2023
Grant date	Mar 28, 2023

Abstract

A cleaner is disclosed. The cleaner includes: a housing having an introduction opening through which air is introduced; a filtering unit configured to be mounted in an inner space of the housing, and defining a dust collection space between the filtering unit and an inner surface of the housing; and a cleaning unit configured to surround the filtering unit, and configured to be raised and lowered inside the dust collection space along with a manipulation unit, wherein, when the cleaning unit is in an initial position, at least a portion of the cleaning unit is connected to an air introduction path extending from the introduction opening to form a guide flow path to guide a flow of introduced air.

First claim

What is claimed is:

1. A housing having an introduction opening through which air is introduced;
a filtering unit configured to be mounted in an inner space of the housing, and defining a dust collection space between the filtering unit and an inner surface of the housing;
a cleaning unit configured to surround the filtering unit, and configured to be raised and lowered inside the dust collection space along with a manipulation unit, wherein, when the cleaning unit is in an initial position, at least a portion of the cleaning unit is connected to an air introduction path extending from the introduction opening to form a guide flow path to guide a flow of the introduced air; and
a guide fence disposed along an outer edge of the cleaning unit and facing the inner surface of the housing, the guide fence extending along the inner surface of the housing to form the guide flow path,
wherein the cleaning unit comprises a guide wall configured to extend continuously in a circumferential direction, the guide wall comprising an inclining surface and a lower portion comprising a guide edge,
Wherein the guide fence extends parallel to the guide wall and is spaced radially outward from the guide wall and,
wherein the guide flow path is formed between the guide wall and the guide fence.

2. The cleaner of claim 1 , wherein the guide fence comprises a front portion configured to protrude to a position closer to the introduction opening than an intersection point of the air introduction path and the guide flow path.

3. The cleaner of claim 1 ,
wherein an air introduction part is disposed in a portion of the cleaning unit connected to the introduction opening, the air introduction part being configured to connect the guide flow path with the introduction opening.

4. The cleaner of claim 1 , wherein the guide fence comprises a front surface part formed on a front portion of the guide fence facing the introduction opening, and
wherein a degree of protrusion of the front surface part in a direction toward an air introduction part of the cleaning unit varies along a direction in which the cleaning unit is configured to be raised and lowered.

5. The cleaner of claim 1 , wherein the guide fence comprises a front surface part facing the introduction opening, the front surface part comprising at least one of a continuous curved surface or an inclined surface along a direction in which the cleaning unit is configured to be raised and lowered.

6. The cleaner of claim 1 , wherein the guide fence comprises a front surface part facing the introduction opening, the front surface part comprising:
a flat surface disposed on a first portion of the front surface part facing the inner surface of the housing, and
at least one of a curved surface or an inclined surface disposed on a second portion of the front surface part facing an inner portion of the guide flow path.

7. The cleaner of claim 1 , wherein the cleaning unit comprises:
a cleaning body configured to surround the filtering unit and connect to the manipulation unit to operate in cooperation with the manipulation unit, wherein the guide flow path is included in the cleaning body; and
a guide edge extending from a lower portion of the cleaning body toward a bottom of the dust collection space, the guide edge having a guide inclination surface provided on a surface of the guide edge facing the inner surface of the housing;
wherein a gap between the guide inclination surface and the inner surface of the housing is configured to increase gradually in a direction toward the bottom of the dust collection space.

8. The cleaner of claim 7 , further comprising a guide wall disposed in the cleaning body along a circumferential direction of the cleaning body, the guide wall being inclined in a direction in which the cleaning unit is configured to be raised and lowered such that, when the cleaning unit is located at the initial position, the cleaning unit is configured to guide a flow of the air introduced through the introduction opening.

9. The cleaner of claim 1 , further comprising:
an air introduction part disposed in a portion of the cleaning unit connected to the introduction opening to communicate the guide flow path with the introduction opening; and
a duct blade disposed at one side of the air introduction part such that:
the guide flow path extends along the duct blade, and
an imaginary extension line extending along a direction of the air introduction path meets an inner surface of the guide flow path.

10. The cleaner of claim 1 , further comprising:
an introduction housing connected to the housing and defining the introduction opening;
a guide blade disposed in the introduction housing to block one side of an introduction flow path; and
a duct blade disposed in the cleaning unit and being arranged along an imaginary extension line with the guide blade.

11. The cleaner of claim 1 , further comprising:
a connecting plate extending from a cleaning body of the cleaning unit in a direction in which the cleaning unit is configured to be raised and lowered;
a connection bracket configured to connect the connecting plate to the manipulation unit; and
a blocking wall extending from the connecting plate in a direction opposite to a direction in which air flows along the guide flow path.

12. The cleaner of claim 11 , wherein the blocking wall comprises a curved surface facing the inner surface of the housing, wherein a width of the blocking wall gradually decreases between an upper portion of the blocking wall facing the inner surface of the housing and the connection bracket.

13. The cleaner of claim 1 , further comprising a filter rib protruding from at least one of a side of the inner surface of the housing or an outer surface of a connecting plate facing the inner surface of the housing.

14. The cleaner of claim 13 , wherein the filter rib is disposed adjacent to a channel along which a connection bracket of the connecting plate is configured to be raised and lowered, the filter rib further being disposed at a position close to an entrance of the guide flow path, the entrance being configured to guide the air flow along opposite sides of the channel.

15. The cleaner of claim 1 , further comprising:
a connection bracket connected to the manipulation unit and protruding from the cleaning unit; and
a discharge inclining surface formed on an upper surface of the connection bracket and having a height that gradually decreases toward a bottom of the dust collection space.

16. The cleaner of claim 15 , wherein the height of discharge gradually decreases along a direction of the air flow formed by the guide flow path.

17. The cleaner of claim 15 , wherein the connection bracket comprises a flat surface portion formed parallel to a direction in which the connection bracket is configured to be raised and lowered, the flat surface portion facing a direction of the air flow famed by the guide flow path, wherein a highest position of the discharge inclining surface is formed at an upper end of the flat surface portion.

18. The cleaner of claim 1 , further comprising:
a connecting plate extending from a cleaning body of the cleaning unit along a direction in which the cleaning unit is configured to be raised and lowered, the connecting plate comprising a plate facing the inner surface of the housing and gradually decreasing in width; and
a connection bracket disposed on a portion of the connecting plate configured to connect to the manipulation unit.

19. The cleaner of claim 18 , further comprisin

Assignees

• Lg Electronics Inc

Inventors

• Yang In Gyu
• Shin Jin Hyouk
• Chang Dae Ho
• Ryou Kyoung Ho

Classifications

• A47L9/322

  for hand-supported suction cleaners · CPC title

• A47L5/24 Primary

  Hand-supported suction cleaners · CPC title

• A47L9/1641

  for parallel flow · CPC title

• A47L9/1683

  Dust collecting chambers; Dust collecting receptacles · CPC title

• A47L9/165

  Construction of inlets · CPC title