Air cleaner

Patent metadata

Field	Value
Publication number	US-12540752-B2
Application number	US-202117917679-A
Country	US
Kind code	B2
Filing date	Feb 17, 2021
Priority date	Apr 8, 2020
Publication date	Feb 3, 2026
Grant date	Feb 3, 2026

Abstract

Disclosed is an air cleaner, more specifically, an air cleaner including a blower that inhales air from the outside, and filters the inhaled air, and discharges the filtered air, a flow adjusting device disposed on the blower to inhale the air discharged from the blower, adjust a discharge direction of the inhaled air, and discharge the air, and a guide member disposed below the flow adjusting device to change a state of the flow adjusting device. An angle formed between a top surface of the flow adjusting device and a top surface of the blower may increase or decrease based on operations of the plurality of links, so that the state of the flow adjusting device may be changed from an orientation in which the top surface of the flow adjusting device is horizontal with the top surface of the blower to an orientation in which the top surface of the flow adjusting device is perpendicular to the top surface of the blower.

First claim

The invention claimed is:

1 . An air cleaner comprising:
a blower configured to inhale air from an outside, filter the inhaled air, and discharge the filtered air; a flow adjusting device disposed above the blower and configured to inhale the filtered air discharged from the blower, adjust a discharge direction of the inhaled filtered air, and discharge the filtered air in the adjusted discharge direction; and a guide member disposed below the flow adjusting device and configured to change a state of the flow adjusting device, wherein the guide member includes:
a first housing disposed on an upper surface of the blower;
a second housing coupled to the first housing so as to ascend and descend;
a guide connector rotatably coupled to a bottom surface of the flow adjusting device and to a portion of the second housing;
a first link having a first end pivotably coupled to an inner portion of the first housing and a second end pivotably coupled to an inner portion of the guide connector; and
a second link spaced apart from the first link, the second link having a first end pivotably coupled to the inner portion of the first housing and a second end pivotably coupled to the inner portion of the guide connector, and the second link having a length shorter than a length of the first link, and
wherein the flow adjusting device is configured to change the discharge direction of the filtered air by pivoting at least one of the first and second links.

2 . The air cleaner of claim 1 , wherein the flow adjusting device is movable between a first position, a second position, and a third position, based on a movement of the guide member,
wherein in the first position, an upper surface of the flow adjusting device is parallel with the upper surface of the blower, wherein in the second position, the upper surface of the flow adjusting device forms a predefined acute angle with respect to the upper surface of the blower, and wherein in the third position, the upper surface of the flow adjusting device is perpendicular to the upper surface of the blower.

3 . The air cleaner of claim 1 , wherein the first housing includes a first link connector coupled to the first end of the first link,
wherein the guide connector includes a second link connector coupled to the second end of the first link, wherein the first end of the first link pivots about the first link connector, and wherein the second end of the first link pivots about the second link connector.

4 . The air cleaner of claim 3 , wherein the first housing further includes a third link connector coupled to the first end of the second link,
wherein the guide connector further includes a fourth link connector coupled to the second end of the second link, wherein the first end of the second link pivots about the third link connector, and wherein the second end of the second link pivots about the fourth link connector.

5 . The air cleaner of claim 4 , wherein as the first link pivots, the second link pivots in a same direction as a pivot direction of the first link.

6 . The air cleaner of claim 5 , wherein the second link is configured to pivot through a pivot range greater than a pivot range of the first link.

7 . The air cleaner of claim 5 , wherein the second housing pivots about the first link connector together with the first link.

8 . The air cleaner of claim 5 , wherein as the first link pivots,
the guide connector pivots in a direction opposite to the pivot direction of the first link, and wherein the fourth link connector is configured to pivot about the second link connector together with the guide connector.

9 . The air cleaner of claim 5 , wherein as the second housing pivots in a first direction, the guide connector ascends from the first housing and pivots in a second direction opposite to the first direction.

10 . The air cleaner of claim 9 , wherein the guide connector is configured to pivot in the second direction together with the fourth link connector.

11 . The air cleaner of claim 10 , wherein as the second housing pivots in the first direction, and at the same time the guide connector pivots in the second direction, the flow adjusting device moves from a first position to a third position.

12 . The air cleaner of claim 9 , wherein as the second housing pivots in the second direction, the guide connector descends toward the first housing and pivots in the first direction.

13 . The air cleaner of claim 12 , wherein as the guide connector pivots in the first direction, the fourth link connector and the guide connector pivot in the first direction.

14 . The air cleaner of claim 13 , wherein the flow adjusting device is movable between a first position, a second position, and a third position, based on a movement of the guide member,
wherein in the first position, an upper surface of the flow adjusting device is parallel with the upper surface of the blower, wherein in the second position, the upper surface of the flow adjusting device forms a predefined acute angle with respect to the upper surface of the blower, wherein in the third position, the upper surface of the flow adjusting device is perpendicular to the upper surface of the blower, and wherein as the second housing pivots in the second direction and the guide connector pivots in the first direction, the flow adjusting device moves from the third position to the first position.

15 . The air cleaner of claim 4 , wherein the flow adjusting device is movable between a first position, a second position, and a third position, based on a movement of the guide member,
wherein in the first position, the upper surface of the flow adjusting device is parallel with an upper surface of the blower, wherein in the second position, the upper surface of the flow adjusting device forms a predefined acute angle with respect to the upper surface of the blower, wherein in the third position, the upper surface of the flow adjusting device is perpendicular to the upper surface of the blower, and wherein as the flow adjusting device moves from the first position to the third position, the second link connector and the fourth link connector are moved to a higher vertical height.

16 . The air cleaner of claim 15 , wherein a vertical level increase amount of the fourth link connector is less than a vertical level increase amount of the second link connector.

17 . The air cleaner of claim 16 , wherein when the flow adjusting device is in the second position or the third position, the fourth link connector is disposed at a lower vertical level than the second link connector.

18 . The air cleaner of claim 2 , wherein the first link and the second link are arranged on different planes, and
wherein the first link and the second link have portions overlapping with each other when the flow adjusting device is in the first position.

19 . The air cleaner of claim 1 , wherein the blower includes a first blower configured to inhale the air, filter the inhaled air, and discharge the filtered air at a first vertical height, and a second blower disposed on a top surface the first blower and configured to inhale air, filter the inhaled air, and discharge the filtered air at a second vertical height higher than the first vertical height,
wherein the first blower includes a first casing, a first filter member disposed in a lower portion of an interior of the first casing to filter the air, and a first blow fan disposed in an upper portion of the interior of the first casing to generate air flow,

Assignees

• Lg Electronics Inc

Inventors

• Ha Jiug
• Cho Kangeui
• Han Sungkyong
• Bae Sehwan
• Lee Myungwhoon

Classifications

• B01D2273/30

  Means for generating a circulation of a fluid in a filtration system, e.g. using a pump or a fan · CPC title

• F24F13/28

  Arrangement or mounting of filters · CPC title

• B01D46/0047

  for discharging the filtered gas · CPC title

• F24F13/14 Primary

  built up of tilting members, e.g. louvre · CPC title

• F24F11/79

  for controlling the direction of the supplied air · CPC title