Air cleaner

• US 9,943,794 B2
• Filed: 11/29/2016
• Issued: 04/17/2018
• 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 ARTHUR
• Application Number:
  US15/363,156
• Publication Number:
  US 20170246578A1
• Time in Patent Office: 504 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, including:

a first air cleaning module including a first case having a first suction portion, a first fan disposed in the first case, and a first discharge outlet through which air is discharged from the first air cleaning module;

a second air cleaning module disposed at an upper side of the first air cleaning module, the second air cleaning module including a second case having a cylindrical shape and including a second suction portion, a second fan disposed in the second case, and a second discharge outlet through which air is discharged from the second air cleaning module;

an air guide provided between the first air cleaning module and the second air cleaning module, the air guide including a first plate disposed at an upper side of the first discharge outlet and being rounded in a radial direction to change a direction of an air flow of the air discharged from the first discharge outlet from an axial direction to the radial direction to direct the air discharged from the first air cleaning module away from the air cleaner, wherein the second suction portion is provided in a circumferential direction along an outer circumferential surface of the second case to allow air to be suctioned in 360 degree directions relative to a center line that extends in a vertical direction and passes through an inside center of the second case.

2. The air cleaner according to claim 1, wherein the first discharge outlet is provided at an upper portion of the first air cleaning module.

3. The air cleaner according to claim 2, wherein the first and second air cleaning modules are spaced apart from each other in a vertical direction by the air guide.

4. The air cleaner according to claim 1, wherein an outermost portion in the radial direction of the first plate extends farther outward than an outermost portion in the radial direction of the first discharge outlet.

5. The air cleaner according to claim 4, wherein a distance from a center line of the first air cleaning module to the outermost portion in the radial direction of the first plate is greater than a distance from the center line of the first air cleaning module to the outermost portion in the radial direction of the first discharge outlet.

6. The air cleaner according to claim 1, wherein the first plate extends rounded in the upward direction, wherein the air guide further includes a second plate that extends rounded in a downward direction.

7. The air cleaner according to claim 6, wherein a radius of curvature of the first plate is less than a radius of curvature of the second plate.

8. The air cleaner according to claim 1, wherein the air guide further includes a display.

9. The air cleaner according to claim 8, wherein the air guide further includes a second plate extends rounded in a downward direction, and wherein the display is provided in a space between the first plate and the second plate.

10. An air cleaner comprising:

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

an air guide provided between the first air cleaning module and the second air cleaning module and including a first plate and a second plate coupled to an upper side of the first plate, wherein the first plate includes a plate inner wall having an annular shape, a plate outer wall that surrounds the plate inner wall and a wall connecting portion that extends in a radial direction between the plate inner wall and a lower end of the plate outer wall, wherein the first and second air cleaning modules are spaced apart from each other in vertical direction by the air guide, and wherein the first and second plates guide air discharged in an upward direction through the first discharge outlet and then to an outside of the air cleaner in the radial direction and block the discharged air from being suctioned into the second suction inlet.

11. The air cleaner according to claim 10, wherein the first plate includes:

a curved surface that extends rounded toward the outside in the upward direction from the first discharge outlet; and

a flat surface that extends to the outside in the radial direction from the curved surface portion.

12. The air cleaner according to claim 10, wherein the first plate includes:

a plate inner wall having an annular shape;

a plate outer wall that surrounds the plate inner wall; and

a wall connecting portion that extends in the radial direction between a lower end of the plate inner wall and a lower end of the plate outer wall.

13. The air cleaner according to claim 12, wherein the first plate further includes a depression forming a space between the plate inner wall and the plate outer wall, wherein the depression portion is depressed in a downward direction from a space between an upper end of the plate inner wall and an upper end of the plate outer wall.

14. The air cleaner according to claim 12, further including:

a guide provided at a lower side of the first plate, the guide being coupled to the plate inner wall; and

a discharge guide provided at an upper surface of the guide, the discharge guide having an annular shape.

15. The air cleaner according to claim 14, wherein the discharge guide includes:

a plurality of discharge grills that forms the first discharge outlet; and

a bent support provided at an outside in the radial direction of the plurality of discharge grills, the bent support being supported by the guide.

16. The air cleaner according to claim 15, wherein the first discharge outlet includes an inner space which is defined by an inner circumferential surface of the discharge guide, the plurality of discharge grills, and the bent support.

17. The air cleaner according to claim 14, wherein a first space that guides flow of air discharged through the first discharge outlet is formed in a space between an upper portion of the discharge guide and a lower portion of the first plate.

18. The air cleaner according to claim 10, further including a lever support provided at a lower portion of the second air cleaning module, wherein a space graspable by a user is formed in a space between an upper portion of the second plate and a lower portion of the lever support.