Air purifier

Patent metadata

Field	Value
Publication number	US-9802145-B2
Application number	US-201514921400-A
Country	US
Kind code	B2
Filing date	Oct 23, 2015
Priority date	Oct 24, 2014
Publication date	Oct 31, 2017
Grant date	Oct 31, 2017

Abstract

An air purifier capable of maximizing air purification capacity thereof while having a minimum installation area. The air purifier including a body, a suction unit arranged at a lower portion of the body, having a suction port to intake air, a discharge unit arranged at an upper portion of the body, having a discharge port to output the intake air, a blowing unit arranged within the body, to blow air from the suction unit to the discharge unit, and a filter unit arranged within the body, to purify the blown air, wherein at least one of the suction port and the discharge port has a surface that is inclined from a central axis of the body, wherein the filter unit has a filter surface, through which air passes, the filter surface being inclined from the central axis.

First claim

What is claimed is:

1. An air purifier comprising:
a body having a cylindrical shape at a portion thereof;
a suction unit, arranged at a lower portion of the body, having a suction port to intake air;
a discharge unit, arranged at an upper portion of the body, having a discharge port to output the intake air;
a blowing unit arranged within the body, to blow air from the suction unit to the discharge unit; and
a filter unit arranged within the body, to purify the blown air,
wherein each of the suction port and the discharge port has a surface that is inclined from a central axis of the body,
wherein the filter unit has a filter surface, through which air passes, the filter surface being inclined from the central axis and having an ovoid shape and a center of gravity positioned at a lower portion thereof,
wherein the suction port and the discharge port, and the filter surface of the filter unit are inclined in a same direction.

2. The air purifier of claim 1 , wherein the surface of the at least one of the suction port and the discharge port is an ovoid shape in which a shorter axis does not pass through a center of a longer axis.

3. The air purifier of claim 1 , wherein the surface of the at least one of the suction port and the discharge port is an oval shape.

4. The air purifier of claim 1 , wherein the filter unit comprises:
a pre-filter for removing foreign matter from air;
a HEPA filter disposed above the pre-filter in a HEPA filter body, to collect contaminants from air;
a deodorizing filter disposed above the HEPA filter, to remove odor components from air; and
a deodorizing filter body disposed above the deodorizing filter.

5. The air purifier of claim 4 , wherein:
the pre-filter includes a pre-filter protrusion;
the HEPA filter body is provided with a HEPA filter protrusion that is disposed on the pre-filter protrusion; and
the deodorizing filter body is provided with a deodorizing filter protrusion that is disposed on the HEPA filter protrusion.

6. The air purifier of claim 5 , wherein the suction unit is provided with a filter identifier formed by opening a portion of the suction panel, to expose the pre-filter protrusion, the HEPA filter protrusion, and the deodorizing filter protrusion.

7. The air purifier of claim 6 , wherein the pre-filter protrusion, the HEPA filter protrusion, and the deodorizing filter protrusion are coupled with the filter identifier.

8. The air purifier of claim 5 , wherein the pre-filter protrusion, the HEPA filter protrusion, and the deodorizing filter protrusion are integrally formed with the suction unit.

9. The air purifier of claim 5 , wherein each of the pre-filter protrusion, the HEPA filter protrusion, and the deodorizing filter protrusion has a rear end inclined from the filter surface.

10. The air purifier of claim 4 , wherein the deodorizing filter comprises a plurality of filter members, and the plurality of filter members comprises a first deodorizing filter member and a second deodorizing filter member that is disposed on the first deodorizing filter member.

11. The air purifier of claim 1 , wherein:
the suction unit is provided with a suction grill disposed at the suction port; and
the filter unit is disposed on the suction grill such that the filter surface is inclined from the central axis of the cylindrical body portion.

12. The air purifier of claim 1 , wherein the inclined filter surface extends further in an upward direction than the surface of the suction port.

13. The air purifier of claim 11 , wherein the inclined filter surface extends lower in an upward direction than the surface of the discharge port.

14. The air purifier of claim 1 , wherein the suction port and discharge port, and filter unit are each inclined at substantially the same angle relative to the central axis.

15. The air purifier of claim 14 , wherein the angle is between 40 and 60 degrees.

Assignees

• Lg Electronics Inc

Inventors

• Yu Gibong
• Lee Kyoungho
• Cha Sangjin

Classifications

• B01D46/0086

  Filter condition indicators · CPC title

• B01D46/0041

  for feeding · CPC title

• B01D46/0039 Primary

  with flow guiding by feed or discharge devices · CPC title

• B01D46/009

  Identification of filter type or position thereof, e.g. by transponders or bar codes · CPC title

• B01D46/0038

  with means for influencing the odor, e.g. deodorizing substances · CPC title