Air cleaner

• US 10,436,469 B2
• Filed: 11/29/2016
• Issued: 10/08/2019
• Est. Priority Date: 02/26/2016
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Mun, Yeongcheol, Ha, Hyunpil, Jung, Soonki, Park, Jaekyun, Bae, Soohyun
• Primary Examiner(s): McKenzie, T. Bennett
• Application Number:
  US15/363,643
• Publication Number:
  US 20170248339A1
• Time in Patent Office: 1,043 Days
• Field of Search: 55467-473
• 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 46/0008 Two or more filter elements not fluidly connected positioned in the same housing
• 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 46/58 connected in parallel
• CPC Class Codes: F04D 17/16 for displacing without appreciable compression
• CPC Class Codes: F04D 27/002 by varying geometry within the pumps, e.g. by adjusting vanes
• CPC Class Codes: F04D 29/4206 especially adapted for elastic fluid pumps
• CPC Class Codes: F04D 29/462 especially adapted for elastic fluid pumps
• CPC Class Codes: F04D 29/703 specially for fans, e.g. fan guards
• CPC Class Codes: F24F 11/30 for purposes related to the operation of the system, e.g. for safety or monitoring
• CPC Class Codes: F24F 11/52 Indication arrangements, e.g. displays
• CPC Class Codes: F24F 11/74 for controlling air flow rate or air velocity
• CPC Class Codes: F24F 13/20 Casings or covers
• CPC Class Codes: F24F 13/28 Arrangement or mounting of filters
• CPC Class Codes: F24F 7/007 with forced flow using ducting systems F24F7/06
• CPC Class Codes: F24F 8/108 using dry filter elements
• CPC Class Codes: G09F 13/16 Signs formed of or incorporating reflecting elements or surfaces, e.g. warning signs having triangular or other geometrical shape
• CPC Class Codes: G09F 9/30 in which the desired character or characters are formed by combining individual elements panels comprising a number of electrodes in a single cell controlling light arriving from an independent light source, e.g. electro-optical or magneto-optical cell, G02F1/00

Abstract

An air cleaner is provided that may include at least one blowing device including a main fan that generates air flow and a first discharge outlet through which air passing through the main fan is discharged; a flow controller movably provided at one side of the at least one blowing device, the flow controller including a sub-fan that generates air flow and a discharge grill through which air passing through the sub-fan is discharged; and a display provided in the discharge grill, the display device displaying operation information.

Claims

1. An air cleaner, comprising:

at least one blowing device including a main fan that generates air flow and a first discharge outlet through which air passing through the main fan is discharged;

a flow controller movably provided at one side of the at least one blowing device, the flow controller including a sub-fan that generates air flow and a discharge grill through which air passing through the sub-fan is discharged; and

a display provided in the discharge grill, the display displaying operation information, the display including;

a display printed circuit board (PCB);

a plurality of illumination sources provided on the display PCB, the plurality of illumination sources including;

a first illumination source that displays operation information of the air cleaner on a display screen; and

a second illumination source that implements a rim of the display; and

a diffusing plate configured to surround the display PCB, the diffusing plate guiding light irradiated from the second illumination source toward the rim of the display screen, wherein the diffusing plate includes;

a plate main body supported by the discharge grill; and

an illumination accommodating portion that protrudes from an inner circumferential surface of the plate main body to allow the second illumination source to be provided therein.

2. The air cleaner of claim 1, wherein the discharge grill includes:

a depression portion formed at a center portion of the discharge grill;

a plurality of grill portions that extends to the outside in a radial direction from the depression portion; and

a second discharge outlet formed between the plurality of grill portions, the second discharge outlet allowing air to be discharged therefrom.

3. The air cleaner of claim 2, wherein the display is provided at the depression portion.

4. The air cleaner of claim 1, wherein the display further includes:

a reflector coupled to one side of the display PCB, the reflector concentrating light irradiated from the plurality of illumination sources.

5. The air cleaner of claim 1, wherein the display PCB includes:

a main body front surface on which the first illumination source is provided; and

a main body rear surface on which the second illumination source is provided.

6. The air cleaner of claim 1, wherein the display PCB has a circular shape, and the diffusing plate has a ring shape.

7. The air cleaner of claim 1, wherein the plate main body and the illumination accommodating portion are integrally formed.

8. The air cleaner of claim 1, wherein at least one of the plate main body or the illumination accommodating portion is made of a translucent material through which refraction or diffusion of light is performed.

9. The air cleaner of claim 1, wherein the illumination accommodating portion includes:

first and second side surfaces that extend to an inside in a radial direction from the inner circumferential surface of the plate main body;

a third side surface that connects the first and second side surfaces; and

a fourth side surface provided at a lower side of the first and second side surfaces.

10. The air cleaner of claim 9, wherein the first to fourth side surfaces and the inner circumferential surface of the plate main body define an accommodating space into which the second illumination source is inserted.

11. The air cleaner of claim 1, wherein the discharge grill includes:

a grill outer wall;

a grill inner wall provided inside of the grill outer wall;

a plurality of grill portions that extends from the grill outer wall to the grill inner wall; and

a second discharge outlet formed between the plurality of grill portions.

12. The air cleaner of claim 11, wherein the display PCB is supported by the grill inner wall.

13. The air cleaner of claim 12, wherein the display includes:

a display cover that supports an outside of the display PCB; and

a cover film attached to the display cover to allow a portion of light transferred from the display PCB to be transmitted therethrough.

14. The air cleaner of claim 1, wherein the flow controller includes:

a first guide that guides rotation of the flow controller in the first direction; and

a second guide that guides rotation of the flow controller in a second direction.

15. The air cleaner of claim 14, wherein each of the first guide and second guide includes a gear and a gear motor.

16. The air cleaner of claim 1, wherein the flow controller is provided at an upper side of the at least one blowing device.

17. The air cleaner of claim 16, wherein the display forms an upper surface of the flow controller.