CN118049718A

CN118049718A - Air purifier

Info

Publication number: CN118049718A
Application number: CN202410386604.8A
Authority: CN
Inventors: 朴镇容; 尹相渊; 尹柱协; 李钟洙; 李累利
Original assignee: LG Electronics Inc
Current assignee: LG Electronics Inc
Priority date: 2020-08-07
Filing date: 2021-07-28
Publication date: 2024-05-17
Also published as: KR20220155963A; KR102647124B1; KR20240023549A; KR20230121712A; KR20220018766A; KR102647125B1; CN114061005B; KR20220155964A; KR20220155962A; CN114061005A; KR102467323B1

Abstract

The air purifier of the present invention comprises: a housing; an air supply fan arranged on the inner side of the shell; the filter is arranged on the inner side of the shell and used for filtering air; and a plurality of grating groups forming a circumferential surface of the case, the grating groups being arranged along a circumferential direction of the case and including a first grating group and a second grating group adjacent to each other; the first grid group and the second grid group each include: the plurality of grids extend in the up-down direction, the directions of extending from the inner end to the outer end are the same, the grids are adjacent to each other to form a suction inlet, the directions of extending from the inner end to the outer end of the plurality of grids of the first grid group are different from the directions of extending from the inner end to the outer end of the plurality of grids of the second grid group, the shell comprises a first half shell and a second half shell which extend in the up-down direction and are adjacent to each other, a part of the grids of the second grid group and the first grid group are arranged on the first half shell, and the rest of the grids of the second grid group are arranged on the second half shell.

Description

Air purifier

The present application is a divisional application of patent application of the invention with the application date of 2021, 7 and 28, the application number of 202110856896.3 and the name of air purifier.

Technical Field

The present invention relates to air cleaners.

Background

The air cleaner is a device for purifying air of a specific space by filtering foreign substances present in the air of the specific space and blowing the filtered air. The air cleaner may have a structure in which a region where the suction port is disposed is large to suck air from a wide region and filter the air.

In korean laid-open patent No. KR10-2017-0140578, an air cleaner is disclosed in which a perforated-shaped suction port is formed in the circumferential surface of a cylindrical case.

However, since the aperture ratio of the air cleaner having the perforated suction port is limited, an increase in the range of the aperture ratio is expected to improve the suction performance and the air cleaning performance.

Disclosure of Invention

The invention provides an air purifier which improves the suction performance and the air purifying performance by improving the opening ratio of a suction inlet.

Another object of the present invention is to provide an air cleaner that reduces the burden on the manufacturing process by using a mold of a simple shape.

The problems of the present invention are not limited to the above-mentioned problems, and other problems not mentioned can be clearly understood by those skilled in the art from the following description.

An air purifier according to an embodiment of the present invention includes: a housing forming an external appearance and extending in an up-down direction; an air supply fan disposed inside the housing; a filter disposed inside the housing for filtering air flowing into the blower fan; and a plurality of lattice groups, which form the circumferential surface of the housing, are arranged along the circumferential direction of the housing, and include a first lattice group and a second lattice group adjacent to each other; the first grid group and the second grid group each include: the plurality of grids extend in the up-down direction, the directions of extending from the inner end to the outer end are the same, the grids are arranged adjacent to each other so as to form a suction inlet between the grids, the directions of extending from the inner end to the outer end of the plurality of grids of the first grid group are different from the directions of extending from the inner end to the outer end of the plurality of grids of the second grid group, the housing comprises a first half housing and a second half housing which extend in the up-down direction and are arranged adjacent to each other, a part of the grids of the second grid group and the first grid group are arranged on the first half housing, and the rest of the grids of the second grid group are arranged on the second half housing.

The support includes: a first rib including the first side end portion; and a second rib including the second side end portion.

The area occupied by the second grid group in the first half shell is the same as the area occupied by the second grid group in the second half shell.

The distance between the grid disposed at one end of the second grid group and the boundary between the first half shell and the second half shell is the same as the distance between the grid disposed at the other end of the second grid group and the boundary.

The housing includes: a first horizontal grid extending along the circumferential direction of the first half shell and connecting the plurality of grids; and a second horizontal grid extending along the circumferential direction of the second half shell and connecting the plurality of grids; the outer ends of the first and second horizontal grids are formed at positions further inward than the outer ends of the plurality of grids extending in the up-down direction in the radial direction of the housing so that the side ends of the plurality of grids continuously extend in the up-down direction between the upper and lower ends of the plurality of grids.

The first half case includes a pair of first magnetic parts disposed at both ends of the first half case and a second magnetic part disposed between the pair of first magnetic parts, and the first magnetic parts are disposed at positions above the second magnetic parts.

In order to achieve the above object, an air cleaner according to an embodiment of the present invention includes: a housing having a peripheral surface formed in a direction perpendicular to the up-down direction, and a plurality of grid groups spaced apart in a circumferential direction perpendicular to the up-down direction to form a suction port on the peripheral surface; a blower fan disposed inside the casing and configured to flow air flowing in through the suction inlet to an upper side; and a filter disposed inside the housing and configured to filter air flowing in through the suction port; each of the plurality of grill groups forms a suction port that opens in a direction different from each other, and the directions in which the plurality of grills included in each of the plurality of grill groups extend from the inner end to the outer end are the same as each other, whereby a housing having a stripe shape and having a plurality of suction ports arranged at intervals in the circumferential direction can be manufactured by injection molding.

The arrangement direction of the grids included in one of the plurality of grid groups and the arrangement direction of the grids of the grid group arranged adjacent to the one grid group are at right angles or acute angles, and therefore, the angle between the opening direction of the suction inlet formed on the peripheral surface of the shell and the opening direction of the suction inlet formed adjacent to the suction inlet is not more than 90 degrees. That is, the air does not flow in a direction completely different from the direction in which the peripheral surface faces.

The plurality of grids included in each of the plurality of grids are arranged in parallel to each other in a direction spaced apart in the circumferential direction and extending from an inner end to an outer end of the grid, whereby the grids included in the grids are arranged in the same direction, whereby injection molding can be performed once for each of the grids.

The housing includes: a cover panel covering the outside of the blower fan; the suction panel is arranged below the cover panel, and a plurality of grid groups are arranged, so that a suction inlet is formed below the air supply fan, and air can flow upwards.

The suction panel is provided with a support member which is arranged between each of the plurality of grill groups and separates the plurality of grill groups, thereby enhancing the rigidity of the suction panel.

The support member has a V shape that opens in a direction from the inside to the outside of the housing, thereby enhancing the rigidity of the suction panel.

The support includes: a first rib extending in the same direction as a grid included in one grid group disposed on one side of the support; and a second rib extending in the same direction as the grid included in the other grid group disposed on the other side of the support, whereby the support may be manufactured by injection molding together with the adjacent grid group.

The housing includes a first half housing and a second half housing, which are symmetrical in shape and are coupled to or decoupled from each other.

The grid group disposed at both ends of the first half case and the second half case has a structure in which grids extend in the same direction, and thus the number of the supports disposed at each half case can be increased, and the rigidity of the case can be enhanced.

The first half case and the second half case are joined to each other to form a cylindrical shape, and the plurality of grids disposed at the joined portion of the first half case and the second half case extend in a direction perpendicular to a tangential line formed on the peripheral surface at the joined portion of the first half case and the second half case.

The grids included in the grid groups disposed at both ends of the first half case and the second half case extend in different directions from each other, whereby the number of grid groups disposed in each of the first half case and the second half case can be reduced. This may simplify the manufacturing engineering for injection molding the grid group.

By joining the first half case and the second half case, the grids disposed at both ends of the first half case are joined to the grids disposed at both ends of the second half case to form one supporting member, whereby the rigidity of the joined case can be enhanced.

The casing may include four side walls, and a plurality of grids extending in a direction perpendicular to the respective side walls may be disposed on the respective side walls, thereby forming the suction ports in a direction perpendicular to the respective sides of the casing having a quadrangular prism shape.

The housing includes four side walls, and a plurality of grids extending in a direction perpendicular to the side walls are disposed on each side wall, so that air can be sucked in along the direction in which each side wall faces.

The housing includes four side walls, and two grill groups including grills extending in different directions from each other are arranged on each side wall, whereby air can be sucked from each direction at the four side walls.

The angle formed between the directions of the different grating groups arranged on the same side wall is smaller than or equal to the angle formed between the directions of the adjacent grating groups arranged on the different side walls, thereby the air can flow in the direction adjacent to the direction of the side wall.

The housing includes: an intermediate support member disposed between different ones of the grid groups disposed on the same side wall; and corner supports disposed between adjacent grid groups disposed on different side walls, thereby enhancing rigidity of the case.

The middle support piece and the corner support piece are in V shapes which are opened along with the direction from the inner side to the outer side, and the angle of the middle support piece which is opened outwards is smaller than or equal to the angle of the corner support piece which is opened outwards.

Details concerning other embodiments are included in the detailed description and the accompanying drawings.

The air purifier according to the present invention has one or more of the following effects.

First, since the air cleaner includes a plurality of grill groups forming suction ports that are opened in different directions from each other, and the plurality of grill groups included in each grill group are arranged in parallel in the same direction, it is possible to realize a case that can be manufactured by injection molding, and thus there is an advantage in that an air cleaner having a striped suction port can be produced by a simple manufacturing process.

Second, since the suction ports are arranged in a stripe shape so as to be spaced apart in the circumferential direction, there is an advantage in that the suction performance and the air cleaning performance can be improved by increasing the aperture ratio of the suction ports.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

Drawings

Fig. 1 is a perspective view of an air cleaner according to an embodiment of the present invention.

Fig. 2 is a cross-sectional view of fig. 1.

Fig. 3 is a perspective view of a housing according to an embodiment of the present invention.

Fig. 4 is a rear view of fig. 3.

Fig. 5 is a side perspective view for explaining a fastening portion of the case of fig. 3.

Fig. 6 is a cross-sectional view for explaining a plurality of grid groups arranged in a case according to an embodiment of the present invention.

Fig. 7 is a view for explaining a state in which the case of fig. 6 is separated into a first half case and a second half case.

Fig. 8 is an enlarged view for explaining the arrangement of the first grid group and the second grid group, and the arrangement and form of the first support arranged between the first grid group and the second grid group.

Fig. 9 is a view for explaining a state in which a case of another embodiment of the present invention is separated into a first half case and a second half case.

Fig. 10a and 10b are views for explaining a plurality of lattice groups and a plurality of lattices arranged in a quadrangular prism-shaped casing, which is a casing configuration of a further embodiment of the present invention, fig. 10a is a view showing a state where a first casing half and a second casing half are coupled, and fig. 10b is a view showing a state where the first casing half and the second casing half are separated.

Fig. 11a and 11b are views for explaining a plurality of lattice groups and a plurality of lattices arranged in a quadrangular prism-shaped casing, which is a form of a casing according to still another embodiment of the present invention, fig. 11a is a view showing a state where a first casing half and a second casing half are coupled, and fig. 11b is a view showing a state where the first casing half and the second casing half are separated.

Description of the reference numerals

10: Air purifier 100: first air supply device

110: The first housing 120: first filter

132: First fan 140: first air supply guide

150: First discharge cap 160: separating device

170: The support plate 180: base seat

200: The second air supply device 210: second shell

220: Second filter 232: second fan

240: Second air supply guide 250: second spitting cover

300: Circulator 400: shell body

410: Lid panels 410, 420: peripheral surface

412: First magnetic force portion 414: second magnetic force part

416: First fastening boss 418: second fastening protrusion

420: Suction panel

422A, 422b, 422c, 422d, 422e, 422f, 422g, 422h: grid group

424: Grid 426: suction inlet

428A, 428b, 428c, 428d, 428e, 428f, 428g, 428h: support member

428A1, 428a2, 428a3, 428a4: intermediate support

428B1, 428b2, 428b3, 428b4: corner support

429: Horizontal grid 430: base panel

432: Base fixing part

Detailed Description

The advantages, features and methods of implementing the present invention will become more apparent from the following detailed description of embodiments with reference to the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be embodied in various forms different from each other, and the present embodiment is provided only for fully disclosing the present invention and for fully opening the scope of the present invention to one of ordinary skill in the art, and the present invention is to be determined only by the scope of the claims. Throughout the specification, like reference numerals denote like constituent elements.

The first, second, and third expressions are used only to distinguish the structures, and are not related to the priority order, importance, and the like of the structures.

The present invention will be described below with reference to the accompanying drawings for explaining an air cleaner by way of examples of the present invention.

< Integral Structure >

Referring to fig. 1, an air cleaner 10 according to an embodiment of the present invention includes: the air supply devices 100 and 200 generate air flow; and a circulator 300 for changing the discharge direction of the air flow generated in the blower devices 100 and 200. The blower devices 100, 200 include a first blower device 100 that generates a first air flow and a second blower device 200 that generates a second air flow.

Referring to fig. 1 to 2, the first air blowing device 100 and the second air blowing device 200 may be disposed in the up-down direction. The second air blowing device 200 may be disposed at an upper side of the first air blowing device 100.

The air purifier 10 includes a housing 110, 210 that forms an exterior appearance. The housings 110, 210 include a first housing 110 forming the exterior of the first air blowing device 100 and a second housing 210 forming the exterior of the second air blowing device 200.

The first housing 110 may be cylindrical in shape. The first housing 110 may be configured such that the diameter of the upper portion is smaller than the diameter of the lower portion.

The first housing 110 has a first suction port 112 through which air is sucked. The first suction port 112 communicates the inside and the outside of the first housing 110. The first suction port 112 is formed in plural. A plurality of first suction ports 112 may be formed in the circumferential surface of the first housing 110, and the first housing 110 may be formed with a first discharge port 152 opened upward.

The plurality of first suction ports 112 are formed long in the up-down direction. The plurality of first suction ports 112 may be formed uniformly in the circumferential direction along the outer circumferential surface of the first housing 110 so that air can be sucked from an arbitrary direction with reference to the first housing 110.

As described above, the first housing 110 is configured in a cylindrical shape, and the plurality of first suction ports 112 are formed along the outer circumferential surface of the first housing 110, thereby increasing the suction amount of air.

A first discharge cap 150 is disposed on the upper portion of the first blower device 100, and the first discharge cap 150 forms a first discharge port 152 that opens upward. The first discharge port 152 may be formed in a ring shape.

The first filter 120 may be detachably installed in the installation space. The first filter 120 may be formed in a cylindrical shape, and air may flow in through an outer circumferential surface of the first filter 120. During the passage through the first filter 120, impurities such as fine dust existing in the air may be filtered.

Since the first filter 120 has a cylindrical shape, air can flow in from any direction with reference to the first filter 120. Thereby enabling an increase in the filtering area of the air.

The installation space may be provided in a cylindrical shape corresponding to the shape of the first filter 120. The first air blowing device 100 may include a first filter frame 122 forming an installation space for installing the first filter 120. The first filter 120 may be slidably introduced into the installation space during the installation process. Instead, the first filter 120 may be slidably led out of the installation space during the separation process.

The first air blowing device 100 includes: the first fan housing 130 is disposed above the first filter 120; the first fan 132 is rotatably disposed inside the first fan housing 130; and a first fan motor 134 for rotating the first fan 132.

A circular first cover suction hole 130a is formed at the lower side of the first fan cover 130, and a ring-shaped first cover discharge hole 130b is formed at the upper side of the first fan cover 130. The first fan 132 sucks air in an axial direction and discharges the air toward a radial upper side.

The first fan 132 includes: a first hub 132a coupled to a rotation shaft of a first fan motor 134 as a centrifugal fan motor; a first shroud 132b disposed spaced apart from the first hub 132 a; and a plurality of first blades 132c disposed between the first hub 132a and the first shroud 132 b. The first fan motor 134 may be coupled to an upper side of the first fan 132.

The first air blowing device 100 further includes a first air blowing guide 140, and the first air blowing guide 140 is coupled to an upper side of the first fan 132 and guides air passing through the first fan 132 to the upper side.

The first air guide 140 is formed as an annular first air flow path 140a through which the air discharged from the first fan 132 flows.

The first air supply guide 140 includes: a cylindrical first air supply body 142 that forms an external appearance; a bowl-shaped first motor cover 144 disposed at a central portion of the first blower body 142, the first fan motor 134 being inserted into the first motor cover 144; and a plurality of first guide vanes 146 disposed at intervals in the circumferential direction in the first air flow path 140a formed between the first air flow body 142 and the first motor cover 144.

The first air guide 140 forms an annular first air flow path 140a between the first air main body 142 and the first motor cover 144 through which air discharged from the first fan 132 flows.

The plurality of first guide vanes 146 guide the air discharged from the first fan 132 to the first air flow path 140a upward. Each of the plurality of first guide vanes 146 may be formed in a curved plate shape arranged upright near the vertical direction. The first guide vane 146 extends from the outer circumferential surface of the first motor cover 144 to the inner circumferential surface of the first blower main body 142. The plurality of first guide vanes 146 may be arranged in a spaced apart relationship. The plurality of first guide blades 146 perform a function of guiding the air flowing into the first air flow path 140a of the first air guide 140 via the first fan 132 upward.

The first fan motor 134 may be supported at an upper side of the first motor cover 144. The rotation shaft of the first fan motor 134 may extend downward from the first fan motor 134 and may be connected to the first hub 132a through the bottom surface of the first motor cover 144.

The first air supply device 100 further includes a base 180, and the base 180 is disposed at the lower side of the first housing 110 and disposed on the ground. The base 180 is located at a position spaced downward from the lower end of the first housing 110. A base suction part 114 is formed in a partitioned space between the first housing 110 and the base 180.

The air cleaner 10 includes a partition 160, and the partition 160 is disposed between the first air supply device 100 and the second air supply device 200. The second air blowing device 200 may be spaced upward from the first air blowing device 100 by the partition 160.

The partition 160 may separate or block the air flow generated at the first air supply device 100 and the air flow generated at the second air supply device 200. The first blower 100 and the second blower 200 may be arranged to be spaced apart from each other in the vertical direction by the partition 160.

A partitioned space in which the partition 160 is provided is formed between the first air blower 100 and the second air blower 200.

The partition 160 includes a first partition plate 162 and a second partition plate 164 disposed on an upper side of the first partition plate 162. The first partition plate 162 extends upward to have a curvature, and the second partition plate 164 extends downward to have a curvature. The first partition plate 162 extends upward of the first discharge cap 150. At least a portion of the first partition plate 162 is formed as a curved surface portion having a prescribed radius of curvature. A PCB device (not shown) may be disposed inside the partition 160.

The first discharge cap 150 of the first blower 100 is disposed below the partition 160, and the support plate 170 of the second blower 200 is disposed above the partition 160.

The second air supply device further includes a support plate 170, and the support plate 170 supports the second filter 220 of the second air supply device 200. The support plate 170 has a substantially ring shape. The support plate is disposed on the upper side of the second partition plate 164.

The support plate 170 has a ring shape and extends from an inner peripheral surface to an outer peripheral surface thereof to be inclined slightly upward with respect to the axial direction.

The second housing 210 may be cylindrical in shape. The second housing 210 may be constructed such that the diameter of the upper portion thereof is smaller than the diameter of the lower portion thereof. A second suction port 212 through which air is sucked is formed in the second housing 210. The second suction port 212 is formed long in the up-down direction, and is formed in plural at intervals in the circumferential direction.

The plurality of second suction ports 212 are formed uniformly along the outer circumferential surface of the second housing 210 in the circumferential direction so that air can be sucked from an arbitrary direction with reference to the second housing 210.

In the second blower 200, the second filter 220 is disposed on the second filter frame 222, and the same description as that of the first filter 120 and the first filter frame 122 is possible.

The second air blowing device 200 includes: a second fan 232 disposed above the second filter 220 to form a flow of air; a second fan motor 234 for rotating the second fan; and a second fan housing 230, wherein the second fan 232 is disposed in the second fan housing 230. The second fan 232, the second fan motor 234, and the second fan housing 230 may have the same configuration and similar configuration as the first fan 132, the first fan motor 134, and the first fan housing 130 described above, and perform the same function. Accordingly, the second fan 232 may be in a diagonal flow fan configuration, and, as with the first fan 132, may be comprised of a hub 232a, a shroud 232b, and a plurality of blades 232 c.

The second air blowing device 200 further includes a second air blowing guide 240, and the second air blowing guide 240 is disposed at an upper side of the second fan 232 and guides air passing through the second fan 232 to an upper side. The second air supply guide 240 includes: a cylindrical second air supply main body 242 forming an external appearance; a bowl-shaped second motor cover 244 disposed at a central portion of the second blower main body 242, the second fan motor 234 being inserted into the second motor cover 244; and a plurality of second guide blades 246 disposed at intervals in the circumferential direction in the second air flow path 240a formed between the second air flow body 242 and the second motor cover 244. The second air supply body 242, the second motor cover 244, and the plurality of second guide blades 246 may have the same configuration and similar configuration as the first air supply body 142, the first motor cover 144, and the plurality of first guide blades 146 described above, and may perform the same function.

A second discharge cap 250 is disposed on the upper portion of the second blower 200, and the second discharge cap 250 forms a second discharge port 252 that opens upward. The second discharge port 252 may be formed in a ring shape. A second discharge grid 258 is disposed on the second discharge cap 250, and the second discharge grid 258 is formed to radiate at the second discharge port 252.

The air cleaner 10 includes: a moving guide 260 rotatably disposed on the guide base 256, for supporting the arrangement of the circulator 300; and a moving means (mover) 270 for changing the tilt angle of the circulator 300 as the moving guide 260 moves.

The circulator 300 may be disposed at an upper side of the second air supply device 200. The circulator 300 can adjust the wind direction of the air discharged upward from the second blower 200. The circulator 300 is disposed in parallel with or inclined to a plane formed by the second discharge port 252 above the second discharge port 252 of the second blower device 200.

The circulator 300 is formed with a suction port and a discharge port, and can blow the filtered air discharged from the second blower 200 to a long distance.

The circulator 300 is disposed above the second blower 200. The position of the circulator 300 is changed at the upper side of the second blower 200, and air discharged upward by passing through the second blower 200 can be blown in the radial direction.

Referring to fig. 2, the circulator 300 includes: a lower cover 310 forming a suction port; an upper cover 320 forming a discharge port; a blower fan 330 disposed between the lower cover 310 and the upper cover 320, and configured to rotate to generate air flow; a motor 340 disposed between the blower fan 330 and the lower cover 310 to rotate the blower fan 330; and a motor cover 350 disposed at the lower side of the blower fan 330 and disposed at the periphery of the motor 340.

Referring to fig. 2, the circulator 300 may further include: a support member 370 disposed between the upper cover 320 and the blower fan 330 to support the upper cover 320; an outer cover 380 covering the outer side of the upper cover 320; and a display 390 disposed on the upper side of the support member 370 to display the operation or state of the air cleaner 10.

< Shell >

Next, with reference to fig. 3 to 8, a case 400 of the first air blower 100 and the second air blower 200 according to an embodiment will be described. Accordingly, the housing 400 described below may be the first housing 110 of the first air blowing device 100 or the second housing 210 of the second air blowing device 200. The suction port 426 of the housing 400 described below may be the suction ports 112 and 212 formed in each of the first housing 110 and the second housing 210.

The housing 400 may include circumferential surfaces 410, 420 formed in a direction perpendicular to the up-down direction. Referring to fig. 6, the case 400 may be cylindrical in shape. The housing 400 may have a cylindrical shape in which an inner diameter becomes smaller as approaching the upper side.

Referring to fig. 6 to 7, a plurality of suction ports 426 are formed in the vertical direction in the housing 400. The housing 400 includes a plurality of grill clusters that are circumferentially spaced apart to form a plurality of suction ports.

The case 400 may include a first half case 400a and a second half case 400b, the first half case 400a and the second half case 400b having shapes symmetrical to each other and coupled to or decoupled from each other. Referring to fig. 3, the first half case 400a and the second half case 400b may be semi-cylindrical in shape.

Referring to fig. 6 to 7, the first half case 400a and the second half case 400b may have shapes symmetrical to each other, and may have structures coupled to each other.

Referring to fig. 4, the housing 400 includes: a cover panel 410 disposed outside the first fan 132 or the second fan 232; and a suction panel 420 disposed below the cover panel 410 and having a plurality of grating groups.

Referring to fig. 4, a plurality of magnetic parts 412, 414 for bringing the case 400 into close contact with the inside are arranged on the cover panel 410. The magnetic parts 412, 414 may include: a pair of first magnetic parts 412 disposed at both ends of the first half-shell 400a or the second half-shell 400 b; and a second magnetic part 414 disposed between the pair of first magnetic parts 412.

Referring to fig. 3, a plurality of grids 424 disposed on the inhalation panel 420 may also extend to the outer surface of the cover panel 410.

Referring to fig. 4, the first magnetic part 412 is disposed on the upper side of the second magnetic part 414. The pair of first magnetic parts 412 are disposed at both ends of the cover panel 410. The first magnetic force portion 412 or the second magnetic force portion 414 can be brought into close contact with a corresponding magnetic force portion (not shown) disposed in the blower main body 142, 242 by a magnetic force. One of the magnetic parts 412, 414 and the corresponding magnetic part may be formed of a permanent magnet, and the remaining one may be formed of a metal material that reacts with the permanent magnet to form attractive force.

Referring to fig. 4 to 5, first and second fastening protrusions 416 and 418 for coupling the first and second half cases 400a and 400b to each other are provided at the cover panel 410. The first fastening protrusion 416 and the second fastening protrusion 418 are respectively disposed at both end portions of the cover panel 410. The first fastening protrusion 416 may have a shape to be fastened by being engaged with the second fastening protrusion 418.

Referring to fig. 5, the first fastening projection 416 includes: a locking portion 416a for locking the hook portions 418a, 418b of the second fastening protrusion 418; the first guide portion 416b and the second guide portion 416c protrude from the click portion 416a in a direction in which the second fastening projection 418 is disposed, and guide the movement of the hook portions 418a, 418 b. The first guide portion 416b and the second guide portion 416c may be arranged to be spaced apart in a direction perpendicular to a direction of protruding from the click portion 416 a.

Referring to fig. 5, the second fastening protrusion 418 includes hooks 418a, 418b, and the hooks 418a, 418b are formed to be engaged with an upper end or a lower end of the engagement portion 416 a. The second fastening boss 418 includes: a first hook 418a formed to engage with an upper end of the engaging portion 416 a; and a second hook 418b formed to engage with the lower end of the engaging portion 416 a.

Referring to fig. 6 to 7, the suction panel 420 includes a plurality of grill clusters 422a, 422b, 422c, 422d, 422e, 422f, 422g, 422h spaced apart in a circumferential direction to form a plurality of suction ports 426 spaced apart in a circumferential direction perpendicular to the up-down direction. Referring to fig. 6, in the case 400 having a cylindrical shape, the suction panel 420 includes a plurality of grill clusters 422a, 422b, 422c, 422d, 422e, 422f, 422g, 422h spaced apart in a circumferential direction to form a plurality of suction ports 426 spaced apart in the circumferential direction. The plurality of grid groups 422a, 422b, 422c, 422d, 422e, 422f, 422g, 422h include a plurality of grids 424 arranged in parallel in the same direction, respectively.

Referring to fig. 8, among the plurality of lattice groups, an angle θ between a direction in which the lattice 424 included in one lattice group 422a extends outward and a direction in which the lattice 424 of the lattice group 422b disposed adjacent to the one lattice group 422a extends outward may be a right angle or an acute angle. Here, the direction in which the grid 424 extends outward refers to the extending direction in which the side end portion 424c extends from the inner end 424a to the outer end 424b of the grid 424 when referring to fig. 8.

Referring to fig. 6 to 7, a plurality of grill clusters 422a, 422b, 422c, 422d, 422e, 422f, 422g, 422h form suction ports 426 that open in directions different from each other. The opening direction of the suction port 426 may be a direction in which the suction port formed between the outwardly extending grill 424 is directed. Accordingly, the outside air may flow into the inside of the case 400 in the opening direction of the suction port 426.

The case 400 may have 4 or more and 10 or less grid groups formed therein. In the case where the number of the grid groups is smaller than the prescribed number, the inflow direction of air may be limited. In addition, if the number of the grid groups exceeds a predetermined number, the manufacturing process may be complicated.

Referring to fig. 6, the areas 442D occupied by each of the plurality of grid groups 422a, 422b, 422c, 422D, 422e, 422f, 422g, 422h in the case 400 may be identical to each other. Accordingly, air may uniformly flow in from all directions of the case 400.

Referring to fig. 6, the case 400 includes 8 grill groups 422a, 422b, 422c, 422d, 422e, 422f, 422g, 422h, and suction ports 426 formed at each of the 8 grill groups 422a, 422b, 422c, 422d, 422e, 422f, 422g, 422h may be formed in different directions from each other. The plurality of grid clusters may include first grid cluster 422a through eighth grid cluster 422h.

Referring to fig. 8, the first lattice group 422a includes a plurality of lattices 424 in a direction different from a direction in which a plurality of lattices 424 included in the second lattice group 422b disposed adjacently are oriented. The direction of the plurality of grids 424 included in the first grid group 422a may be at right angles or acute angles to the direction of the plurality of grids 424 included in the second grid group 422 b.

Referring to fig. 8, the direction in which the plurality of grids 424 included in the first grid group 422a are oriented and the direction in which the plurality of grids 424 included in the second grid group 422b are oriented may range from 30 degrees to 60 degrees.

Referring to fig. 8, one grid group 424a includes each of a plurality of grids 424 that are arranged to be spaced apart in a circumferential direction and parallel to each other. Therefore, in one cell group 424a, the suction ports 426 formed between the plurality of cells 424 are opened in the same direction.

Each of the plurality of grid groups 422a, 422b, 422c, 422d, 422e, 422f, 422g, 422h includes a plurality of grids 424 extending in the same direction. One grid group 422a includes a plurality of grids 424 arranged at intervals in a circumferential direction perpendicular to the up-down direction, and arranged in parallel in a direction extending from the inner side end 424a to the outer side end 424 b. Referring to fig. 8, one lattice group 422a includes a plurality of lattices 424 arranged at intervals in the circumferential direction, and arranged in parallel with a direction extending from the inner end 424a to the outer end 424 b.

Referring to fig. 8, one lattice group 422a includes a plurality of lattices 424 arranged to be spaced apart in the circumferential direction, and arranged such that the extending directions of side end portions 424c connecting the inner side end 424a and the outer side end 424b are parallel to each other.

The suction panel 420 includes supports 428a, 428b, 428c, 428d, 428e, 428f, 428g, 428h disposed between a plurality of grill clusters 422a, 422b, 422c, 422d, 422e, 422f, 422g, 422 h. Referring to fig. 8, support 428a separates adjacently disposed clusters 422a, 422 b.

Referring to fig. 8, the support 428a may have a 'V' shape that flares in an outward direction from the inside of the case 400. The support 428a may strengthen the rigidity of the housing 400 by being disposed between two adjacently disposed clusters 422a, 422 b.

Referring to fig. 8, the support 428a includes: the first rib 428a1 extends in the same direction as the grid 424 of the grid group 422a disposed on one side of the support 428 a; and second ribs 428a2 extending in the same direction as grid 424 of grid group 422b disposed on the other side of support 428 a.

Referring to fig. 6 to 7, 8 supporters 428a, 428b, 428c, 428d, 428e, 428f, 428g, 428h are disposed between each of 8 grill groups 422a, 422b, 422c, 422d, 422e, 422f, 422g, 422h of the suction panel 420. Referring to fig. 8, the support 428a configured between the first and second lattice groups 422a and 422b may include: first ribs 428a1 extending in the same direction as grid 424 included in first grid group 422 a; and second ribs 428a2 extending in the same direction as the grids 424 included in the second grid group 422 b.

Referring to fig. 4 and 8, the suction panel 420 includes a horizontal grid 429, the horizontal grid 429 extending in a circumferential direction to connect each of a plurality of grid groups 422a, 422b, 422c, 422d, 422e, 422f, 422g, 422 h. The horizontal grid 429 is annular in shape and is configured to be connected to each of the plurality of grids 424 included in the plurality of grid groups 422a, 422b, 422c, 422d, 422e, 422f, 422g, 422 h.

Referring to fig. 7, the grids 424 included in the grid groups 422d and 422h disposed at both ends of the first half case 400a and the second half case 400b extend in the same direction.

Referring to fig. 7, the first half case 400a includes a first grating group 422a, a second grating group 422b, and a third grating group 422c, and the second half case 400b includes a fifth grating group 422e, a sixth grating group 422f, and a seventh grating group 422g. The fourth grid group 422d and the eighth grid group 422h are disposed at both ends of the first half case 400a and the second half case 400b, respectively. Thus, by the combination of the first half case 400a and the second half case 400b, the fourth grid group 422d and the eighth grid group 422h may be formed as a whole.

The plurality of grids 424 included in the fourth grid group 422d and the eighth grid group 422h are arranged in parallel in the same direction. The fourth grid group 422d and the eighth grid group 422h may include a plurality of grids 424 extending in a direction perpendicular to a tangent line of the circumferential surface of the case 400 at a portion where the first half case 400a and the second half case 400b are joined.

Referring to fig. 4, the case 400 includes a base panel 430, the base panel 430 being disposed at a lower side of the suction panel 420, and fixing the case 400 to the base 180 or the support plate 170. A base fixing portion 432 is disposed on the base panel 430, and the base fixing portion 432 is fixed to the base 180 or the support plate 170. The base fixing portion 432 is fixed to the base 180 or the support plate 170, and can prevent the housing 400 from moving in the circumferential direction.

Next, a case 400 according to another embodiment of the present invention will be described with reference to fig. 9. Referring to fig. 9, the grids 424 included in the grid groups 422a, 422d, 422e, 422h disposed at both ends of the first half case 400a and the second half case 400b extend in different directions from each other.

Referring to fig. 9, the first half case 400a includes a first grid group 422a, a second grid group 422b, a third grid group 422c, and a fourth grid group 422d, and the second half case 400b includes a fifth grid group 422e, a sixth grid group 422f, a seventh grid group 422g, and an eighth grid group 422h. The plurality of grids 424 included in the first and fourth grid groups 422a and 422d disposed at both ends of the first half case 400a and the plurality of grids 424 included in the fifth and eighth grid groups 422e and 422h disposed at both ends of the second half case 400b may extend in different directions, respectively.

By combining the first half case 400a and the second half case 400b, the grids 424 disposed at both ends of the first half case 400a may be combined with the grids 424 disposed at both ends of the second half case 400b, and form one support.

Referring to fig. 10a to 11b, the case 400 may be in the shape of a quadrangular prism. At this time, the filter disposed inside the housing 400 may have a corresponding shape. In addition, the shape of the first fan 132 or the second fan 232 and the air supply guides 140, 240 may be similar to the shape illustrated in fig. 2.

Referring to fig. 10a to 10b, the case 400 may include four grid clusters 422a, 422b, 422c, 422d. The housing 400 may include four sidewalls 420a, 420b, 420c, 420d, and four clusters 422a, 422b, 422c, 422d may be disposed on each sidewall 420a, 420c, 420d. That is, a plurality of grids 424 extending in the same direction are arranged in each of the four side walls 420a, 420b, 420c, 420d.

Each of the side walls 420a, 420b, 420c, and 420d is provided with a grid group including a plurality of grids 424, and the plurality of grids 424 extend outward in the same direction.

Referring to fig. 10a to 10b, the arrangement direction of the plurality of grids 424 included in one grid group 422a may be perpendicular to the arrangement direction of the plurality of grids 424 included in the adjacent grid groups 422b and 422 d.

Referring to fig. 10a to 10b, the case 400 includes supports 428a, 428b, 428c, 428d disposed between each of the plurality of grid clusters 422a, 422b, 422c, 422 d. The supports 428a, 428b, 428c, 428d are disposed at corner portions where the respective sidewalls 420a, 420b, 420c, 420d meet. Referring to fig. 10a to 10b, the supporter 428a may have a rectangular shape having a length of the side end 424c of the grid 424 disposed at both sides as a side length.

Referring to fig. 11a to 11b, the case 400 includes first to fourth sidewalls 420a to 420d, and two grating groups may be disposed at each of the first to fourth sidewalls 420a, 420b, 420c, 420 d. Referring to fig. 11a to 11b, a first grating group 422a and a second grating group 422b may be disposed on the first sidewall 420a, and a third grating group 422c and a fourth grating group 422d may be disposed on the second sidewall 420 b. Similarly, a fifth group of grids 422e and a sixth group of grids 422f may be disposed on the third sidewall 420c, and a seventh group of grids 422g and an eighth group of grids 422h may be disposed on the fourth sidewall 420 d.

Each of the plurality of grid groups 422a, 422b, 422c, 422d, 422e, 422f, 422g, 422h includes a plurality of grids 424 arranged in different directions from each other.

Referring to fig. 11a to 11b, when an angle formed between a direction in which a grid 424 included in one of a plurality of grid groups 422a, 422b, 422c, 422d, 422e, 422f, 422g, 422h faces outward and a direction in which a grid 424 included in one grid group 422a disposed on one side of the grid group 422b faces outward is set to θ1, and an angle formed between a direction in which a grid 424 included in one grid group 422b faces outward and a direction in which a grid 424 included in another grid group 422c disposed on the other side of the grid group 422b faces outward is referred to as θ2, θ1 and θ2 may be different from each other.

That is, the direction angle θ1 of the different grating groups 422a and 422b disposed on the same sidewall 420a and the direction angle θ2 of the adjacent grating groups 422b and 422c disposed on the different sidewalls 420a and 420b may be different from each other.

However, as a different embodiment, the direction included angle θ1 of the different grating groups 422a and 422b disposed on the same sidewall 420a may be the same as the direction included angle θ2 of the adjacent grating groups 422b and 422c disposed on the different sidewalls 420a and 420 b.

Referring to fig. 11a to 11b, when a first angle θ1 formed by a direction in which the first grating group 422a disposed on the first sidewall 420a faces outward (hereinafter, referred to as a 'first grating group direction') and a first angle θ2 formed by a direction in which the second grating group 422b disposed on the first sidewall 420a faces outward (hereinafter, referred to as a 'second grating group direction') and a second angle θ2 formed by a direction in which the first grating group and the third grating group 422c disposed on the second sidewall 420b face outward (hereinafter, referred to as a 'third grating group direction') are θ1, θ1 and θ2 may be different from each other.

That is, the angle θ1 formed between the directions of the different grating groups 422a, 422b disposed on the same side wall 420a may be equal to or smaller than the angle θ2 formed between the directions of the adjacent grating groups 422a, 422c disposed on the different side walls 420a, 420 b.

Referring to fig. 11a to 11b, the case 400 includes supports 428a1, 428a2, 428a3, 428a4, 428b1, 428b2, 428b3, 428b4 arranged between each of the plurality of grid groups 422a, 422b, 422c, 422d, 422e, 422f, 422g, 422 h. Referring to fig. 11a and 11b, the supports 428a1, 428a2, 428a3, 428a4, 428b1, 428b2, 428b3, 428b4 may have a 'V' shape that expands with the direction from the inside to the outside of the housing 400.

Referring to fig. 11 a-11 b, the support 428a may enhance the rigidity of the housing 400 by being disposed between two adjacently disposed clusters 422a, 422 b.

The housing 400 includes: intermediate supports 428a1, 428a2, 428a3, 428a4 are arranged between different grid groups arranged on the same side wall; and corner supports 428b1, 428b2, 428b3, 428b4, disposed between adjacent ones of the grid clusters disposed on different sidewalls.

Referring to fig. 11a, the intermediate support 428a1 includes: the first rib 428a11 extends in the same direction as the grid 424 included in the grid group 422a disposed on one side of the support 428a 1; and second ribs 428a12 extending in the same direction as the grid 424 included in the grid group 422b disposed on the other side of the support 428a 1.

Referring to fig. 11a, corner support 428b1 includes: the first rib 428b11 extends in the same direction as the grid 424 included in the grid group 422b arranged on one side of the corner support 428b 1; and second ribs 428b12 extending in the same direction as grid 424 included in grid group 422c disposed on the other side of angular support 428b 1.

The outward opening angle θ1 of the intermediate supports 428a1, 428a2, 428a3, 428a4 is equal to or smaller than the outward opening angle θ2 of the angular supports 428b1, 428b2, 428b3, 428b 4.

While the preferred embodiments of the present invention have been described above with reference to the drawings, the present invention is not limited to the specific embodiments described above, and it is obvious to those skilled in the art that various modifications can be made thereto without departing from the technical spirit or scope of the present invention as claimed in the claims.

Claims

1. An air purifier, comprising:

A housing forming an external appearance and extending in an up-down direction;

An air supply fan disposed inside the housing;

A filter disposed inside the housing for filtering air flowing into the blower fan; and

A plurality of lattice groups, which form the circumferential surface of the housing, are arranged along the circumferential direction of the housing, and include a first lattice group and a second lattice group adjacent to each other;

the first grid group and the second grid group each include:

a plurality of grids extending in the vertical direction in the same direction extending from the inner end to the outer end, the grids being disposed adjacent to each other to form suction ports therebetween,

The direction in which the plurality of grids of the first grid group extend from the inner side end to the outer side end is different from the direction in which the plurality of grids of the second grid group extend from the inner side end to the outer side end,

The housing includes a first half-housing and a second half-housing extending in the up-down direction and disposed adjacent to each other,

A part of the plurality of grids of the second grid group and the first grid group are arranged on the first half shell,

The remainder of the plurality of cells of the second cell group is disposed in the second half shell.

2. The air purifier as claimed in claim 1, wherein,

The first lattice group occupies an area in the first half case that is larger than an area occupied by the second lattice group disposed in the first half case.

3. The air purifier as claimed in claim 2, wherein,

The distance between the two grids disposed at both ends of the first grid group is the same as the distance between the two grids disposed at both ends of the second grid group.

4. The air purifier as claimed in claim 1, wherein,

The housing is formed in a cylindrical shape by the combination of the first half housing and the second half housing,

The first half shell and the second half shell are combined between two ends of the second grid group along the circumferential direction of the shell,

The plurality of grids constituting the second grid group extend in a direction perpendicular to a tangent line of the peripheral surface at a portion where the first half shell and the second half shell are joined.

5. The air purifier as claimed in claim 1, wherein,

The first half-shell and the second half-shell each comprise:

a suction panel having suction ports with openings between the plurality of grids extending in the up-down direction; and

A cover panel, wherein no suction inlet is formed between the grids,

A plurality of grids extending upward from the suction panel protrude from the cover panel.

6. The air purifier as claimed in claim 5, wherein,

The plurality of grids include side ends connecting both sides of the inner and outer ends of the housing,

The plurality of grids belonging to either one of the first grid group and the second grid group include side end portions that are parallel to each other in the radial direction.

7. The air purifier as claimed in claim 1, wherein,

The extending direction of a part of the grids of the second grid group arranged on the first half shell and the extending direction of the rest of the grids of the second grid group arranged on the second half shell are the same.

8. The air purifier as claimed in claim 1, wherein,

Further comprising a support arranged between the first and second lattice groups to separate the first and second lattice groups,

The support includes:

A first side end portion extending in the same direction as the grids included in the first grid group; and

And a second side end portion extending in the same direction as the grids included in the second grid group.

9. The air purifier as claimed in claim 8, wherein,

The number of the plurality of lattice groups contained in the first half-shell and the second half-shell is the same as the number of the supports separating the plurality of lattice groups.

10. The air purifier as claimed in claim 8, wherein,

The number of the supports formed in the first half case and the second half case is greater than the number of the lattice groups of the half cases disposed only in either one of the first half case and the second half case.