Air cleaner

Patent metadata

Field	Value
Publication number	US-2022011009-A1
Application number	US-202117371273-A
Country	US
Kind code	A1
Filing date	Jul 9, 2021
Priority date	Jul 10, 2020
Publication date	Jan 13, 2022
Grant date	—

Abstract

An air cleaner may include a case having a discharge port formed at an upper side and vertically open; a blower fan disposed inside of the case, and blowing air inside the case toward the discharge port; a discharge body disposed on an upper side of the case in which the discharge port is formed, and having a discharge passage that guides the air, blown by the blower fan, toward the discharge port; a discharge guider rotatably disposed on an upper side of the discharge body, and having a plurality of grills bent so as to guide air, flowing upward through the discharge passage, in a radially outward direction; and a motor that rotates the discharge guider disposed on the discharge body.

First claim

What is claimed is:

1 . An air cleaner, comprising:
a case having a circular cross section and extending in a vertical direction, the case having a discharge port which is formed at an upper side and is vertically open; a fan disposed inside of the case; and a discharge guider disposed at the discharge port, and having a plurality of grills extending in a width of the case and arranged parallel to each other.

2 . The air cleaner of claim 1 , wherein the grills are tilted with respect to a longitudinal direction of the case.

3 . The air cleaner of claim 1 , wherein an upper part of the grills extends along a direction tilted with respect to the longitudinal direction of the case.

4 . The air cleaner of claim 1 , wherein the grills are bent along a first direction perpendicular to the vertical direction and are spaced apart from each other in the first direction.

5 . The air cleaner of claim 1 , wherein a distance between two adjacent grills among the plurality of grills is narrower at an upper side than at the lower side.

6 . The air cleaner of claim 1 , wherein the grill has a leading edge forming a lower end of the grill and a trailing edge forming a upper end of the grill, and
wherein a thickness of the trailing edge is greater than a thickness of the leading edge.

7 . The air cleaner of claim 1 , further comprising a discharge body disposed on an upper side of the case and providing a discharge passage communicating with the discharge port,
wherein the discharge body comprises: an outer body defining an outer circumference of the discharge passage; and an inner body disposed radially inward from the outer body, and wherein the discharge passage is located between the outer body and the inner body and has an annular shape.

8 . The air cleaner of claim 7 , wherein the discharge guider is dispose on the discharge body.

9 . The air cleaner of claim 8 , further comprising a motor configured to rotate the discharge guider,
wherein the discharge guider is configured to be rotated about a rotation axis parallel to the longitudinal direction of the case.

10 . The air cleaner of claim 9 , further comprising a gear that rotates while being coupled to the motor, wherein the motor is mounted in the discharge body, and the discharge guider comprises a guide rail disposed inside of the inner body and engaged with the gear.

11 . The air cleaner of claim 10 , wherein the guide rail is formed in a ring shape on a lower surface of the discharge guider.

12 . The air cleaner of claim 11 , wherein the gear comprises a bevel gear that rotates about a rotational axis perpendicular to a rotational axis of the discharge guider, and has a conical shape.

13 . The air cleaner of claim 10 , wherein the discharge guider comprises:
an outer circumferential wall that forms an outer circumference thereof; an inner circumferential wall spaced apart radially inwardly from the outer circumferential wall; and a lower plate that extends radially inward from a lower end of the inner circumferential wall, wherein the plurality of discharge grills are disposed between the outer circumferential wall and the inner circumferential wall, and wherein a guide rail, engaged with the gear to guide rotation of the discharge guider, is formed on a lower surface of the lower plate.

14 . The air cleaner of claim 13 , further comprising a guide wall disposed above the discharge guider and extends upwardly such that a width of an upper part of the guide wall is bigger than a width of a lower part of the guide wall,
wherein the discharge body comprises a fixing body disposed inside of the inner body and coupled to a lower part of the guide wall, and wherein a first bearing, that rotates while in contact with the fixing body, is disposed on an upper surface of the lower plate.

15 . The air cleaner of claim 13 , wherein a stopper that protrudes upward from the lower plate and restricts a rotational range of the discharge guider.

16 . The air cleaner of claim 9 , wherein the discharge body comprises a mount that extends radially outward from an upper end of the outer body, and wherein the discharge guider is partially disposed on an upper side of the mount.

17 . The air cleaner of claim 16 , wherein the mount has a bearing groove in which a second bearing, configured to contact the outer circumferential wall of the discharge guider, is disposed.

18 . The air cleaner of claim 7 , further comprising a guide wall disposed at an upper side of the discharge body and that extends radially outward from the discharge body in an upward direction.

19 . The air cleaner of claim 18 , wherein the discharge body comprises a fixing body spaced apart inwardly from the inner body, and
wherein a lower part of the guide wall is fixed to the fixing body.

20 . The air cleaner of claim 19 , wherein the discharge body comprises a connection plate that connects the fixing body and the inner body, and wherein the connection plate is disposed below an upper end of the inner body.

21 . The air cleaner of claim 20 , further comprising a motor mounted at the discharge body and configured to rotate the discharge guider; and
a gear that rotates while being coupled to the motor, wherein the discharge guider comprises a guide rail formed in a ring shape on a lower surface of the discharge guider and engaged with the gear, and wherein the guide rail is inserted into a space between the inner body and the fixing body.

22 . The air cleaner of claim 21 , wherein the discharge body comprises a motor sheet disposed inside of the fixing body and that fixes an arrangement of the motor.

23 . The air cleaner of claim 9 , further comprising a gear that rotates while being coupled to the motor, wherein the motor is mounted on the discharge guider, and a guide rail engaged with the gear is formed on the discharge body.

24 . An air cleaner, comprising:
a first blower having a first discharge port formed on an upper side thereof; a second blower disposed over the first blower and having a second discharge port formed on an upper side thereof; and a divider disposed between the first blower and the second blower and that vertically separates the first blower and the second blower, wherein the first blower comprises:
a case extending in a vertical direction, the case having the first discharge port which is formed on an upper side thereof and is vertically open;
a fan disposed inside of the case; and
a discharge guider disposed at the discharge port, and having a plurality of grills extending in a width of the case and arranged parallel to each other,
wherein the divider including a guide wall forming a lower part of the divider, and wherein the guide wall is disposed above the discharge guider and extends upwardly such that a width of an upper part of the guide wall is bigger than a width of a lower part of the guide wall.

25 . The air cleaner of claim 24 , wherein the divider comprises:
a lower end fixing wall that extends downwardly from the guide wall and coupled to the discharge body.

26 . An air cleaner, comprising:
a case having a discharge port which is formed at an upper side and is vertically open; a fan disposed inside of the case, and causing air inside the case to flow toward the discharge port; a discharge body disposed on an upper side of the case in which the discharge port is formed, and

Assignees

• Lg Electronics Inc

Inventors

• Lee Jongsu
• Yoon Juhyup
• Park Naehyun
• Park Dongryul
• Gim Yeonghyeon

Classifications

• F24F2221/12

  transportable · CPC title

• F24F13/10

  movable, e.g. dampers · CPC title

• F24F8/108 Primary

  using dry filter elements · CPC title

• F24F13/082 Primary

  Grilles, registers or guards · CPC title

• F24F13/20

  Casings or covers · CPC title