Air cleaner

• US 9,950,289 B2
• Filed: 11/29/2016
• Issued: 04/24/2018
• 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:
  US15/363,111
• Publication Number:
  US 20170246576A1
• Time in Patent Office: 511 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 2279/50 for air conditioning air-conditioning systems comprising filters F24F8/10
• CPC Class Codes: B01D 46/0005 Mounting of filtering elements within casings, housings or frames B01D46/2422 takes precedence
• CPC Class Codes: B01D 46/0045 by using vanes
• 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 46/2411 Filter cartridges
• CPC Class Codes: B01D 46/56 with multiple filtering elements, characterised by their mutual disposition B01D46/12 takes precedence
• CPC Class Codes: B01D 46/60 arranged concentrically or coaxially
• CPC Class Codes: F24F 1/0071 with means for purifying supplied air perfuming or deodorising means F24F1/008
• CPC Class Codes: F24F 13/20 Casings or covers
• CPC Class Codes: F24F 2013/205 Mounting a ventilator fan therein

Abstract

An air cleaner is provided. The air cleaner may include a first air cleaning module including a first fan, a first filter, and a first inlet through which air is suctioned in a radial into the first filter; a second air cleaning module provided over the first air cleaner including a second fan, a second filter, and a second inlet through which air is suctioned in the radial direction to the second filter; and an air flow controller coupled with the second air cleaning module and including a third fan to control a flow of the air discharged from the second air cleaning module.

Claims

1. An air cleaner, comprising:

a first air cleaning module including a first fan, a first filter, a first inlet through which air is suctioned into the first filter, and a first outlet to guide an upward discharge of the air having passed through the first fan;

a second air cleaning module provided over the first air cleaning module including a second fan, a second filter, and a second inlet through which air is suctioned into the second filter;

an air flow controller coupled with the second air cleaning module and including a third fan to control a flow of the air discharged from the second air cleaning module and a second outlet to guide an upward discharge of the air having passed through the third fan, the air flow controller being movable to change a direction of the flow of air discharged from the second outlet; and

a divider provided between the first air cleaning module and the second air cleaning module and including a lower portion to allow the air discharged from the first outlet to flow in a radial direction.

2. The air cleaner of claim 1, wherein the first air cleaning module and the second air cleaning module are stacked in a vertical direction, and wherein the air discharged from the first air cleaning module and the air discharged from the second air cleaning module each have an independent flow.

3. The air cleaner of claim 1, wherein the first fan or the second fan includes a radial flow fan, and wherein the third fan includes an axial-flow fan.

4. The air cleaner of claim 1, wherein rotational axes of the first, second and third fans are provided on a same axis.

5. The air cleaner of claim 4, wherein fan motors coupled with the first, second, and third fans are provided on the same axis.

6. The air cleaner of claim 1, wherein a first outlet is provided at an upper portion of the first air cleaning module, and wherein the divider is provided between the first outlet and a bottom of the second air cleaning module.

7. The air cleaner of claim 1, wherein the divider includes a leg that extends from atop of the first air cleaning module to a bottom of the second air cleaning module to separate the first and second fans from each other.

8. The air cleaner of claim 1, further including a filter frame provided at the first air cleaning module or the second air cleaning module, wherein the filter frame supports the first filter or the second filter.

9. The air cleaner of claim 8, wherein the filter frame includes:

a first frame configured to support a bottom of the first filter;

a second frame configured to support a top of the first filter; and

at least one filter support that extends from the first frame to the second frame.

10. The air cleaner of claim 9, wherein the at least one filter support includes a plurality of filter supports arrayed in a circumferential direction.

11. The air cleaner of claim 10, wherein the first filter or the second filter has a cylindrical shape.

12. The air cleaner of claim 1, further including:

a support configured to support the first filter or the second filter; and

a lever configured to move the support in an upward or downward direction.

13. The air cleaner of claim 1, wherein the air flow controller is movable to change a direction of the flow of discharged air between an upward direction and an upward and forward direction.

14. The air cleaner of claim 1, wherein the air flow controller is movable between a laid out position and an inclined position.

15. An air cleaner, comprising:

a first air cleaning module including a first case having a first inlet, a first fan provided inside of the first case, and a first outlet to discharge the air having passed through the first fan;

a second air cleaning module provided on the first air cleaning module and including a second case having a second inlet and a second fan provided inside of the second case; and

an air flow controller over the second air cleaning module and including an air flow control fan and a second outlet to discharge the air having passed through the second fan and the air flow control fan, the air flow controller being movable to change a direction of the flow of discharged air; and

a divider that separate the first air cleaning module from the second air cleaning module, the divider including a leg that extends from a top of the first air cleaning module to a bottom of the second air cleaning module to separate the first and second fans from each other.

16. The air cleaner of claim 15, wherein the first case or the second case has a cylindrical shape, wherein the first inlet or the second inlet is formed along an outer circumferential surface of the first case or the second case in a circumferential direction.