Air cleaner

• US 10,646,808 B2
• Filed: 07/26/2017
• Issued: 05/12/2020
• Est. Priority Date: 02/26/2016
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Jung, Soonki, Ha, Hyunpil, Mun, Yeongcheol, Park, Jaekyun, Bae, Soohyun
• Primary Examiner(s): Clemente, Robert
• Application Number:
  US15/659,869
• Publication Number:
  US 20170326490A1
• Time in Patent Office: 1,021 Days
• CPC Class Codes: B01D 2273/30 Means for generating a circulation of a fluid in a filtration system, e.g. using a pump or a fan
• CPC Class Codes: B01D 46/0047 for discharging the filtered gas
• CPC Class Codes: B01D 46/24 Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
• CPC Class Codes: B01D 46/2403 characterised by the physical shape or structure of the filtering element
• CPC Class Codes: B01D 46/42 Auxiliary equipment or operation thereof
• CPC Class Codes: B01D 46/56 with multiple filtering elements, characterised by their mutual disposition B01D46/12 takes precedence
• CPC Class Codes: B01D 46/58 connected in parallel
• CPC Class Codes: B01D 46/60 arranged concentrically or coaxially
• CPC Class Codes: F24F 13/20 Casings or covers
• CPC Class Codes: F24F 8/108 using dry filter elements

Abstract

An air cleaner is provided that may include a first air cleaning module including a first fan that generates air flow toward a first discharge outlet from a first suction inlet; a second air cleaning module including a second fan that generates air flow toward a second discharge outlet from a second suction inlet; and a divider provided between the first air cleaning module and the second air cleaning module, the divider being configured to block air discharged through the first discharge outlet from being suctioned into the second suction inlet.

Claims

1. An air cleaner, comprising:

a first air cleaning module including a first cylindrical case in which a first inlet is formed, a first fan provided within the first cylindrical case, and a discharge outlet through which air passing through the first fan is discharged upward;

a second air cleaning module disposed at an upper side of the first air cleaning module and spaced apart from the first air cleaning module, the second air cleaning module including a second cylindrical case in which a second inlet is formed and a second fan provided within the second cylindrical case; and

a dividing plate provided between a top of the first cylindrical case and a bottom of the second cylindrical case, the dividing plate being configured to divide a space between the first air cleaning module and the second air cleaning module into an upper space and a lower space, wherein each of the first and the second fans comprises a centrifugal fan, an axis of the centrifugal fan being arranged to extend vertically, wherein each of the first and the second inlets is formed with a plurality of through holes arranged in a circumferential direction so that air is suctioned in 360-degree directions with respect to the axis of the centrifugal fan, and wherein the dividing plate includes a bottom surface that guides air discharged from the discharge outlet into the lower space to an outside of the air cleaner in a radial direction, to prevent the air discharged from the discharge outlet from being introduced into the second inlet of the second air cleaning module.

2. The air cleaner according to claim 1, wherein the bottom surface of the dividing plate is rounded.

3. The air cleaner according to claim 2, wherein the bottom surface of the dividing plate is rounded in the radial direction to the outside from an upper side of the discharge outlet.

4. The air cleaner according to claim 1, wherein the upper space includes a grasping space.

5. The air cleaner according to claim 1, wherein the dividing plate includes:

a first plate rounded in an upward direction; and

a second plate coupled to an upper side of the first plate.

6. The air cleaner according to claim 5, wherein the second plate is rounded in a downward direction.

7. The air cleaner according to claim 5, wherein the first plate includes:

a plate inner wall having a substantially annular shape; and

a plate outer wall that surrounds the plate inner wall.

8. The air cleaner according to claim 7, wherein the plate inner wall includes a center portion having an installation space in which at least a portion of a PCB device is provided.

9. The air cleaner according to claim 7, wherein the first plate includes a wall connecting portion that extends towards a lower portion of the plate outer wall from a lower portion of the plate inner wall, and wherein the plate outer wall is rounded upward from the wall connecting portion.

10. The air cleaner according to claim 7, wherein the plate inner wall includes a first wall, a second wall that extends in a vertical direction and is spaced apart from the first wall, and a third wall that connects upper portions of the first wall and the second wall to each other, and wherein the third wall supports a lower surface of the second plate.

11. An air cleaner, comprising:

a first air cleaning module including a first case, a first fan provided within the first case, and a discharge outlet through which air passing through the first fan is discharged;

a second air cleaning module disposed at an upper side of the first air cleaning module and spaced apart from the first air cleaning module, the second air cleaning module including a second case having a suction inlet and a second fan provided within the second case; and

a dividing plate provided between the first case and the second case, the dividing plate being configured to divide a space between the first air cleaning module and the second air cleaning module into an upper space and a lower space, wherein the dividing plate includes a rounded lower plate configured to guide air discharged from the discharge outlet into the lower space to an outside of the air cleaner in a radial direction, and wherein the lower plate includes a plate inner wall having a substantially annular shape and a plate outer wall that surrounds the plate inner wall.

12. The air cleaner according to claim 11, wherein the lower plate is rounded in the radial direction in an upward direction to the outside from an upper side of the discharge outlet.

13. The air cleaner according to claim 11, wherein the dividing plate further includes:

an upper plate coupled to an upper side of the lower plate.

14. The air cleaner according to claim 13, wherein the upper plate is rounded in a downward direction.

15. The air cleaner according to claim 11, wherein the plate inner wall includes a center portion having an installation space in which at least a portion of a PCB device is provided.

16. The air cleaner according to claim 11, wherein the lower plate includes a wall connecting portion that extends towards a lower portion of the plate outer wall from a lower portion of the plate inner wall, and wherein the plate outer wall is rounded upward from the wall connecting portion.

17. The air cleaner according to claim 11, wherein the plate inner wall includes a first wall, a second wall that extends in a vertical direction and is spaced apart from the first wall, and a third wall that connects upper portions of the first wall and the second wall to each other, and wherein the third wall supports a lower surface of the upper plate.

18. An air cleaner, comprising:

a first air cleaning module including a first case, a first fan provided within the first case, and a discharge outlet through which air passing through the first fan is discharged;

a second air cleaning module disposed at an upper side of the first air cleaning module and spaced apart from the first air cleaning module, the second air cleaning module including a second case having a suction inlet and a second fan provided within the second case; and

a dividing plate provided between the first case and the second case, the dividing plate being configured to divide a space between the first air cleaning module and the second air cleaning module into an upper space and a lower space, wherein the dividing plate includes a lower plate that guides air discharged from the discharge outlet into the lower space to an outside of the air cleaner in a radial direction and an upper plate that guides a separate flow of air into the upper space and the suction inlet of the second air cleaning module.

19. The air cleaner according to claim 18, wherein the lower plate is rounded in an upward direction and the upper plate is coupled to an upper side of the lower plate and is rounded in a downward direction.