Air cleaner

Patent metadata

Field	Value
Publication number	US-10845078-B2
Application number	US-201916548045-A
Country	US
Kind code	B2
Filing date	Aug 22, 2019
Priority date	Feb 26, 2016
Publication date	Nov 24, 2020
Grant date	Nov 24, 2020

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.

First claim

What is claimed is:

1. An air cleaner, comprising:
an air cleaning module including a first fan and a discharge outlet through which air passing through the first fan is discharged, the discharge outlet being concave downward;
a circulator into which the air discharged through the air cleaning module is introduced and being slidable, the circulator including:
a fan housing;
a second fan that is provided within the fan housing;
an introduction grill provided at a suction side of the second fan, the introduction grill having a semi-circular shape to lay down in the discharge outlet; and
a curved guide provided at the introduction grill, the curved guide including an arcuate rack configured to be arranged in a lateral direction in a laying down status of the circulator and arranged in a longitudinal direction in a standing up status of the circulator;
a discharge grill through which air passing through the second fan is discharged, the discharge grill being provided at a top of the fan housing;
a display provided in the discharge grill; and
a guide main body provided on a top portion of the air cleaner around the discharge outlet and configured to support sliding of the circulator, the guide main body including a gear interlocked with the arcuate rack, wherein when the gear and the arcuate rack are interlocked with each other, the circulator slides up and down along with the curved guide between the laying down status and the standing up status.

2. The air cleaner of claim 1 , wherein the discharge grill includes:
a cylindrical grill outer wall;
a cylindrical 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.

3. The air cleaner of claim 1 , wherein the display has a circular shape, and wherein an outer circumferential surface of the display is fitted with the cylindrical grill inner wall.

4. The air cleaner of claim 2 , wherein the discharge grill further includes a depression portion formed at a center portion of the discharge grill, the depression portion provided at an inner side of the cylindrical grill inner wall, wherein the display is provided on the depression portion.

5. The air cleaner of claim 4 , further comprising a supporting rib provided in the depression portion to support the display, wherein the supporting rib protrudes upward from an upper surface of the depression portion.

6. The air cleaner of claim 5 , wherein the grill inner wall supports a bottom of the display.

7. The air cleaner of claim 1 , wherein the display further includes:
a display printed circuit board (PCB) on which a plurality of illumination sources is provided; and
a reflector coupled to one side of the display PCB, the reflector concentrating light irradiated from the plurality of illumination sources.

8. The air cleaner of claim 7 , wherein the display PCB includes:
a main body front surface on which a first illumination source is provided; and
a main body rear surface on which a second illumination source is provided.

9. The air cleaner of claim 8 , wherein the reflector includes:
a reflector main body made of an opaque material; and
a through hole that is formed in the reflector main body and allows light irradiated from the first illumination source to be concentrated in the upward direction.

10. The air cleaner of claim 8 , further comprising a diffusing plate configured to guide light irradiated from the second illumination source toward the rim of the display, 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.

11. The air cleaner of claim 10 , wherein the display PCB has a circular shape, and the diffusing plate has a ring shape to surround the display PCB.

12. The air cleaner of claim 10 , wherein at least one of the plate main body or the illumination accommodating portion is made of a translucent material through which diffusion of light is performed.

13. The air cleaner of claim 10 , 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.

14. The air cleaner of claim 13 , 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.

15. The air cleaner of claim 7 , wherein the display further 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.

16. The air cleaner of claim 1 , wherein the circulator is provided at an upper side of the air cleaning module.

17. The air cleaner of claim 16 ,
wherein the second fan is provided within the housing and the introduction grill.

18. The air cleaner of claim 1 , wherein the guide main body includes a bottom portion in which a lateral gear is provided, and wherein a lateral rack is provided around the discharge outlet and is interlocked with the lateral gear, to allow a lateral rotation of the guide main body.

19. The air cleaner of claim 18 , wherein the lateral rack is provided at a wall of the discharge outlet and has an arcuate shape.

20. The air cleaner of claim 19 , wherein the air cleaner further includes:
a cylindrical outer wall; and
a cylindrical inner wall provided at inside the cylindrical outer wall, wherein the discharge outlet is formed between the cylindrical outer wall and the cylindrical inner wall.

21. The air cleaner of claim 20 , wherein the lateral rack is provided at the cylindrical inner wall.

22. The air cleaner of claim 18 , wherein the guide main body further includes a rotational shaft provided at a center of the bottom portion, and wherein the air cleaner further includes a shaft coupler in which the rotational shaft is received.

23. The air cleaner of claim 18 , wherein the guide main body further includes a bearing provided at the bottom portion, and wherein the air cleaner further includes a rotational guide plate in which a bearing groove is formed, the bearing groove being arcuate to receive the bearing.

24. The air cleaner of claim 18 , wherein the guide main body comprises a circular plate.

25. The air cleaner of claim 1 , wherein the curved guide provided between the introduction grill and the guide main body, and wherein the arcuate rack is provided at a bottom of the curved guide.

26. The air cleaner of claim 25 , wherein the curved guide includes:
a body portion in which a first guide surface is formed, the first guide surface having a rounded shape and formed at the bottom of the curved guide; and
a guide bearing provided at the body portion.

27. The air cleaner of claim 26 , wherein the guide main body includes a fixing guide in which a second guide surface is formed, the second gui

Assignees

• Lg Electronics Inc

Inventors

• Mun Yeongcheol
• Ha Hyunpil
• Jung Soonki
• Park Jaekyun
• Bae Soohyun

Classifications

• F24F11/74 Primary

  for controlling air flow rate or air velocity · CPC title

• F24F11/52

  Indication arrangements, e.g. displays · CPC title

• F24F11/30 Primary

  for purposes related to the operation of the system, e.g. for safety or monitoring · CPC title

• B01D46/58

  connected in parallel · CPC title

• F24F8/108

  using dry filter elements · CPC title