Air purifier with hinged filter frame

Patent metadata

Field	Value
Publication number	US-10821389-B2
Application number	US-201615750876-A
Country	US
Kind code	B2
Filing date	Aug 8, 2016
Priority date	Aug 12, 2015
Publication date	Nov 3, 2020
Grant date	Nov 3, 2020

Abstract

The present invention provides an air purifier. The air purifier according to one preferred embodiment of the present invention may comprise: a housing; a blowing unit installed in the housing so as to draw in external air; and a filter unit having filtering surfaces, through which the air passes and which are disposed in multiple directions, and an air inflow space, which has at least a part thereof surrounded by the filtering surfaces disposed in the multiple directions and into which the air discharged from the blowing unit flows.

First claim

The invention claimed is:

1. An air purifier, comprising:
a housing;
a blowing unit installed in the housing to intake external air; and
a filter unit configured to have a horizontal closed cross-sectional structure, and including a filter member having four filtering surfaces, through which flowing air caused by the blowing unit passes and which are disposed in multiple directions, and a filter frame on which the filter member is mounted,
wherein the filter frame includes two first type frames and two second type frames,
wherein one of the two first type frames is hinge-combined with one of the two second type frames to rotate between an upper limit and a lower limit of a first range of a rotation angle and is hinge-combined with the other of the two second type frames to rotate between an upper limit and a lower limit of a second range of a rotation angle,
wherein the other of the two first type frames is hinge-combined with the one of the two second type frames to rotate between the upper limit and the lower limit of the second range of a rotation angle and is hinge-combined with the other of the two second type frames to rotate between the upper limit and the lower limit of the first range of a rotation angle,
wherein the upper limit of the first range is smaller than the upper limit of the second range, and
wherein the lower limit of the first range is smaller than the lower limit of the second range.

2. The air purifier of claim 1 , wherein the filter member is bent to allow the filtering surfaces to be disposed in multiple directions.

3. The air purifier of claim 2 , wherein the housing includes:
a first housing cover accommodating the blowing unit; and
a second housing cover accommodating the filter unit, and
the first housing cover and the second housing cover are detachably provided.

4. The air purifier of claim 3 , wherein the second housing cover includes an air discharge part formed in a surface opposing a filtering surface of the filter member.

5. The air purifier of claim 2 , wherein the housing includes a flow path switching member disposed in an inner space of the filter member and guiding the flowing air to the plurality of filtering surfaces.

6. The air purifier of claim 2 , wherein the filter member is provided as an integrated filter.

7. The air purifier of claim 2 , wherein the filter member is configured, as different types of a plurality of filters are combined.

8. The air purifier of claim 2 , further comprising a closing cover installed in the housing or the filter member to cover an inner space of the filter member.

9. The air purifier of claim 8 , wherein the closing cover includes:
a support frame in contact with the filter member; and
a plurality of partition walls installed in the support frame and extended to be in contact with the housing.

10. The air purifier of claim 1 , wherein both sides of the housing are provided with air inlets, and
the blowing unit intakes air on both sides of the housing through the air inlets.

11. The air purifier of claim 1 , further comprising:
a filter holder installed in the filter member, and having a through part corresponding to an inner space of the filter member; and
an upper filter member inserted into the through part of the filter holder,
wherein the housing includes an upper air discharge part formed in a surface opposing the upper filter member.

12. The air purifier of claim 1 , further comprising:
a filter recognition part for recognizing the filter unit; and
a control part for setting a control setting value according to a recognition result by the filter recognition part, and controlling the blowing unit to perform an air purification operation according to the control setting value.

13. The air purifier of claim 12 , wherein the filter recognition part recognizes a type or a capacity of the filter unit.

14. The air purifier of claim 13 , wherein the filter unit is provided with an identification part indicating a type of filter, and
the filler recognition part recognizes the identification part and identifies the type of the filter.

15. The air purifier of claim 13 , wherein the filter recognition part recognizes at least one among a number, an area, a height, and a depth of the filter unit and identifies the capacity of the filter unit.

16. The air purifier of claim 13 , comprising a storage part for storing information on a control setting value predetermined according to a number, a type, or a capacity of the filter unit.

17. The air purifier of claim 1 , wherein the lower limit of the first range is 0 degree, the upper limit of the first range is 90 degrees, the lower limit of the second range is 90 degrees, and the upper limit of the second range is 180 degrees.

18. The air purifier of claim 1 , wherein when an angle between the one of the two first type frames and the one of the two second type frames is 0 degree and an angle between the one of the two first type frames and the other of the two second type frames is 180 degrees, the two first type frames are in contact with each other.

19. The air purifier of claim 1 , wherein when an angle between the one of the two first type frames and the one of the two second type frames is 90 degrees and an angle between the one of the two first type frames and the other of the two second type frames is 90 degrees, the filter frame forms a rectangle.

20. The air purifier of claim 1 , wherein the two first type frames are parallel to each other and the two second type frames are parallel to each other.

21. The air purifier of claim 1 , wherein each of the two first type frames and the two second type frames includes a filter separation prevention rib holding a position of the filter member.

22. The air purifier of claim 1 , wherein a length of the two first type frames is greater than a length of the two second type frames.

23. An air purifier, comprising:
a housing;
a blowing unit installed in the housing to intake external air; and
a filter unit including a filter frame and a filter member mounted on the filter frame, the filter member having four filtering surfaces to filter air within the air purifier,
wherein the filter frame includes:
a first frame including a first side and a second side that is opposite to the first side,
a second frame including a first side and a second side that is opposite to the first side, the first side of the second frame being rotatably connected to the second side of the first frame,
a third frame including a first side and a second side that is opposite to the first side, the first side of the third frame being rotatably connected to the second side of the second frame, and
a fourth frame including a first side and a second side that is opposite to the first side, the first side of the fourth frame being rotatably connected to the second side of the third frame and the second side of the fourth frame being rotatably connected to the first side of the first frame,

wherein the filter frame is configured to rotate between an open position and an overlapped position,
wherein in the open the first frame, the second frame, the third frame, and the fourth frame form a rectangle, and
wherein, in the overlapped position, an angle between the first frame and the second frame is less than 90 degrees, an angle between the third frame and the fourth frame is less than 90 degrees, an angle between the second frame and the third frame is greater than 90 degrees, and an angl

Assignees

• Coway Co Ltd

Inventors

• Bae Jun-Hyoung
• Kang Sang-Woo
• Kim Jin-Min

Classifications

• F24F3/14 Primary

  by humidification; by dehumidification · CPC title

• B01D46/58

  connected in parallel · CPC title

• F24F13/28

  Arrangement or mounting of filters · CPC title

• B01D2273/30

  Means for generating a circulation of a fluid in a filtration system, e.g. using a pump or a fan · CPC title

• B01D2275/203

  Shapes flexible in their geometry, e.g. bendable, adjustable to a certain size · CPC title