Air cleaner

• US 10,495,104 B2
• Filed: 07/26/2017
• Issued: 12/03/2019
• Est. Priority Date: 02/26/2016
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Park, Jaekyun, Ha, Hyunpil, Jung, Soonki, Mun, Yeongcheol, Bae, Soohyun
• Primary Examiner(s): McKenzie, T. Bennett
• Application Number:
  US15/659,989
• Publication Number:
  US 20170321715A1
• Time in Patent Office: 860 Days
• Field of Search: 55467
• CPC Class Codes: A61L 2209/11 Apparatus for controlling air treatment
• CPC Class Codes: A61L 2209/12 Lighting means
• CPC Class Codes: A61L 2209/14 Filtering means
• CPC Class Codes: A61L 9/22 Ionisation
• 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 46/2403 characterised by the physical shape or structure of the filtering element
• CPC Class Codes: B01D 46/58 connected in parallel
• CPC Class Codes: F01P 2070/04 using electrical heating elements
• CPC Class Codes: F01P 7/16 by thermostatic control
• CPC Class Codes: F01P 7/167 by adjusting the pre-set temperature according to engine parameters, e.g. engine load, engine speed
• CPC Class Codes: F04D 29/403 especially adapted for elastic fluid pumps
• CPC Class Codes: F04D 29/703 specially for fans, e.g. fan guards
• CPC Class Codes: F24F 1/0011 characterised by air outlets
• CPC Class Codes: F24F 1/0071 with means for purifying supplied air perfuming or deodorising means F24F1/008
• CPC Class Codes: F24F 1/028 characterised by air supply means, e.g. fan casings, internal dampers or ducts with secondary air induced by injector action of the primary air F24F1/01
• 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 11/89 Arrangement or mounting of control or safety devices
• CPC Class Codes: F24F 13/10 : movable, e.g. dampers
• CPC Class Codes: F24F 13/12 : built up of sliding members
• CPC Class Codes: F24F 13/14 : built up of tilting members, e.g. louvre
• CPC Class Codes: F24F 13/20 : Casings or covers
• CPC Class Codes: F24F 13/28 : Arrangement or mounting of filters
• CPC Class Codes: F24F 2013/1446 : with gearings
• CPC Class Codes: F24F 2013/205 : Mounting a ventilator fan therein
• CPC Class Codes: F24F 2110/64 : Airborne particle content
• CPC Class Codes: F24F 7/007 : with forced flow using ducting systems F24F7/06
• CPC Class Codes: F24F 8/10 : by separation, e.g. by filtering
• CPC Class Codes: F24F 8/80 : Self-contained air purifiers
• CPC Class Codes: F25B 2600/25 : Control of valves
• CPC Class Codes: F25B 2600/2515 : Flow valves
• CPC Class Codes: G05D 23/1852 : with sensing element expanding and contracting in response to change of temperature
• CPC Class Codes: G05D 23/1856 : with sensing element responsive to pressure or volume change in a confined fluid
• CPC Class Codes: G05D 23/1921 : using a thermal motor
• CPC Class Codes: G05D 23/1925 : using a combination of auxiliary electric and non-electric power
• CPC Class Codes: G05D 23/275 : with sensing element expanding, contracting, or fusing in response to changes of temperature
• CPC Class Codes: G05D 23/27537 : using expansible fluid
• CPC Class Codes: G05D 23/27541 : using expansible solid
• CPC Class Codes: G05D 23/30 : Automatic controllers with an auxiliary heating device affecting the sensing element, e.g. for anticipating change of temperature
• CPC Class Codes: G05D 23/303 : using a sensing element having a resistance varying with temperature, e.g. thermistor

Abstract

An air flow controller for an air cleaner and an air cleaner are provided. The air flow controller may include a fan, and a housing, the fan being provided in the housing and the housing being movable from an initial horizontal position in which the air flow controller directs air flow in a vertical direction to an inclined position in which the air flow controller directs air flow in a diagonal direction.

Claims

1. An air cleaner, comprising:

a first fan;

a discharge guide that discharges air passing through the first fan, the discharge guide including a discharge grill having a concave shape in a downward direction; and

an air flow controller configured to adjust a direction of air discharged from the discharge guide and being movable, the air flow controller including an introduction grill into which the air discharged from the discharge guide is introduced and having a convex shape in the downward direction, wherein;

when the air flow controller is in a first position of a laid-out state, the introduction grill is seated on an upper surface of the discharge grill, and

when the air flow controller moves from the first position to a second position of an inclined erected state, the introduction grill is spaced apart from the upper surface of the discharge grill.

2. The air cleaner according to claim 1, wherein the air flow controller slidably moves from the first position to the second position.

3. The air cleaner according to claim 2, wherein the air flow controller includes:

a fixed guide provided at a lower side of the introduction grill, the fixed guide having a first guide surface which is rounded; and

a rotation guide having a second guide surface which moves along the first guide surface.

4. The air cleaner according to claim 3, wherein the fixed guide further includes a first guide bearing provided at a side of the first guide surface, the first guide bearing being configured to contact the rotation guide.

5. The air cleaner according to claim 3, further including:

a gear that communicates with the rotation guide; and

a gear recess provided at the fixed guide into which the gear is inserted.

6. The air cleaner according to claim 5, wherein the gear is positioned at the first guide surface, and at least a portion of the gear projects upward from the gear recess.

7. The air cleaner according to claim 5, wherein the rotation guide further includes a rack that communicates with the gear.

8. The air cleaner according to claim 3, wherein the rotation guide further includes a second guide bearing provided at a side of the first guide surface, the second guide bearing being configured to move along the first guide surface.

9. The air cleaner according to claim 1, wherein the air flow controller further includes a rotational shaft, and wherein the rotational shaft guides rotation of the air flow controller in a clockwise or counter-clockwise direction when the air flow controller is in the first position or the second position.

10. The air cleaner according to claim 1, wherein the air flow controller further includes a second fan, and wherein the first and the second fans are positioned on a same axis in a longitudinal direction.

11. An air cleaner, comprising:

a first fan;

a discharge guide that discharges air passing through the first fan, the discharge guide including a discharge grill having a concave shape in a downward direction; and

an air flow controller configured to adjust a direction of air discharged from the discharge guide and being movable, the air flow controller including an introduction grill into which the air discharged from the discharge guide is introduced and having a convex shape in the downward direction, wherein;

when the air flow controller is in a first position, the introduction grill is seated on an upper surface of the discharge grill, and

when the air flow controller moves from the first position to a second position, the introduction grill is spaced apart from the upper surface of the discharge grill, and wherein the air flow controller slidably moves from the first position to the second position.

12. The air cleaner according to claim 11, wherein the air flow controller further includes a rotational shaft, and wherein the rotational shaft guides rotation of the air flow controller in a clockwise or counter-clockwise direction when the air flow controller is in the first position or the second position.

13. The air cleaner according to claim 11, wherein the air flow controller further includes a second fan, and wherein the first and the second fans are positioned on a same axis in a longitudinal direction.

14. An air cleaner, comprising:

a first fan;

a discharge guide that discharges air passing through the first fan, the discharge guide including a discharge grill having a concave shape in a downward direction; and

an air flow controller configured to adjust a direction of air discharged from the discharge guide and being movable, the air flow controller including an introduction grill into which the air discharged from the discharge guide is introduced and having a convex shape in the downward direction, wherein;

when the air flow controller is in a first position, the introduction grill is seated on an upper surface of the discharge grill, and

when the air flow controller moves from the first position to a second position, the introduction grill is spaced apart from the upper surface of the discharge grill, and wherein the air flow controller includes;

a fixed guide provided at a lower side of the introduction grill, the fixed guide having a first guide surface which is rounded; and

a rotation guide having a second guide surface which moves along the first guide surface.

15. The air cleaner according to claim 14, wherein the fixed guide further includes a first guide bearing provided at a side of the first guide surface, the first guide bearing being configured to contact the rotation guide.

16. The air cleaner according to claim 15, wherein the rotation guide further includes a second guide bearing provided at a side of the first guide surface, the second guide bearing being configured to move along the first guide surface, and wherein the rotation guide further includes a rack that communicates with the gear.

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

a gear that communicates with the rotation guide; and

a gear recess provided at the fixed guide into which the gear is inserted.

18. The air cleaner according to claim 17, wherein the gear is positioned at the first guide surface, and at least a portion of the gear projects upward from the gear recess.

19. The air cleaner according to claim 14, wherein the air flow controller further includes a rotational shaft, and wherein the rotational shaft guides rotation of the air flow controller in a clockwise or counter-clockwise direction when the air flow controller is in the first position or the second position.

20. The air cleaner according to claim 14, wherein the air flow controller further includes a second fan, and wherein the first and the second fans are positioned on a same axis in a longitudinal direction.