Air purifier

Abstract

Disclosed is an air cleaner. The air cleaner of the present invention includes: a housing forming an inlet at a peripheral wall and being open at an upper side; a discharge cover forming a discharge outlet toward the upper side and being disposed at the upper side of the opening of the housing; a fan disposed inside the housing and forming a flow of air from the inlet to the discharge outlet by rotation; a circulator disposed at the upper side of the discharge cover and changing a flow direction of air flowing upward through the discharge outlet; a rotation device rotatably disposed at the upper side of the discharge cover and changing a direction toward which the circulator faces in a circumferential direction; a moving device movably disposed at the upper side of the rotation device and connected to the circulator, the moving device adjusting the direction toward which the circulator faces up and down; a first moving gear rotatably disposed inside the rotation device and engaged with one side of the moving device; and a first motor disposed inside the rotation device and rotating the first moving gear.

Description

TECHNICAL FIELD

[0001] The present application relates to an air cleaner, and more particularly, to an air cleaner including a circulator. BACKGROUND

[0002] An air cleaner is a device that filters air inside a predetermined space and discharges it, thereby reducing dust or bacteria, etc. in the air of the corresponding space. The air cleaner filters out impurities by the flow of air of the corresponding space and discharges the air in which the impurities are removed.

[0003] In order to inhale air in a wide range of the corresponding space and discharge the filtered air, a structure in which an air inlet is formed in the peripheral surface of a cylindrical housing and the filtered air is discharged to the upper side can be disclosed. However, in order to discharge the filtered air to a distant area of the corresponding space, a device for additionally converting the flow of the filtered air to the upper side of the discharge is provided, so that the filtered air can be discharged to a wide area of the indoor space.

[0004] In Korean Patent No. 10-2018-0000121, an air supply device that makes air flow from the lower peripheral surface to the upper side and a flow conversion device (circulator) disposed on the upper side of the air supply device and converting the flow of the air discharged to the upper side are disclosed. However, in the above structure, a structure for adjusting the up-and-down direction of the circulator is disposed in the lower surface of the circulator, and thus there is a problem in that the range in which the rotation angle of the circulator is changed in the up-and-down direction is limited. SUMMARY

[0005] Technical Problem

[0006] The present application relates to an air cleaner, and more particularly, to an air cleaner including a circulator.

[0007] In addition, another object of the present application is to provide an air cleaner that can concentrate air cleaning on a user-desired area or blow the cleaned air in various directions by increasing the range in which the cleaned air can flow.

[0008] Still another object of the present application is to provide an air cleaner in which the direction in which the discharge port of a circulator faces is changed in the up-and-down direction, and the circulator can be stably moved.

[0009] Technical Solution

[0010] To achieve the above object, an air cleaner according to an embodiment of the present application includes a housing having an inlet formed in a peripheral wall and an upper side opened; a discharge cover having a discharge outlet formed in the upper side and disposed at the upper side of the opening of the housing; a fan disposed at the inside of the housing to form air flow from the inlet to the discharge outlet by rotation; a circulator disposed at the upper side of the discharge cover to change the flow direction of air flowing upward through the discharge outlet; a rotating device rotatably disposed at the upper side of the discharge cover to change the direction toward which the circulator faces in a circumferential direction; and a moving device movably disposed at the upper side of the rotating device and connected to the circulator to adjust the direction toward which the circulator faces upward and downward, so that the direction toward which the circulator faces can be rotated in the upward and downward directions or the circumferential direction.

[0011] Here, the moving device includes an upper wall fastened to the circulator and a lower wall bent downward from one end of the upper wall and having a curved surface protruding toward the direction in which the rotating device is disposed, the lower wall having a first rack rail engaged with the first moving gear, so that the upward and downward movement range of the circulator can be increased.

[0012] Specifically, the first rack rail is formed such that a thread engaged with the first moving gear extends in the length direction of the moving device, and the first rack rail can be formed along the lower wall of the curved surface of the moving device, so that the movement range of the circulator can be increased.

[0013] The first rack rail can be disposed at the center in the left and right directions of the lower wall, so that the moving device can be stably moved.

[0014] A stopper is disposed at the lower wall, the stopper being disposed in one direction of the first rack rail and protruding downward from the lower wall to limit the movement of the moving device, so that the movement range of the moving device can be limited.

[0015] A protruding projection is disposed at the rotating device, the projection being in contact with the stopper to limit the movement in one direction of the moving device, so that the movement in one direction of the moving device can be limited.

[0016] A pair of guide ribs is disposed at the lower wall, the pair of guide ribs being disposed apart from each other at both sides of the first rack rail and extending in a direction parallel to the first rack rail, so that the movement direction of the moving device can be guided.

[0017] The rotating device includes a first roller rotatably disposed, the first roller being in contact with the guide rib to prevent the moving device from moving in the left and right directions, so that the moving device can move in the curved surface direction of the lower wall.

[0018] The first roller is formed with a roller groove recessed inward from a peripheral surface of the first roller in a circumferential direction to maintain a state of contact with the guide rib disposed in the roller groove of the first roller so that the guide rib can move the moving device without departing from the range of the roller groove of the first roller.

[0019] The moving device includes a side wall connecting both side ends of the upper wall and the lower wall, and a side guide extending from a lower end of the side wall in a side direction to guide movement of the moving device so that movement of the moving device can be guided.

[0020] A lower surface of the side guide is formed to be parallel to a surface formed by the lower wall, and a guide groove recessed downward is formed in an upper surface of the side guide so that the moving device can move along the curved surface formed in the lower wall of the moving device.

[0021] The rotating device includes a second roller in contact with and rotating the side guide, the second roller being inserted into the guide groove to be in contact with and rotating the side guide when the moving device moves so that movement of the moving device can be guided.

[0022] The air cleaner includes a first roller rotatably disposed in the rotating device to be in contact with a lower surface of the moving device, and a second roller rotatably disposed in the rotating device to be in contact with an upper surface of the moving device so that the moving device can stably move.

[0023] The first roller includes a first upper roller and a first lower roller disposed at a position lower than the first upper roller, and the second roller includes a second upper roller and a second lower roller disposed at a position lower than the second upper roller, the first lower roller being disposed between the second upper roller and the second lower roller when viewed from an upper side so that the moving device can stably move.

[0024] The upper wall includes a first upper wall connected to the lower wall and disposed at an upper side of the lower wall, and a second upper wall connected to the first upper wall and formed at a position lower than the first upper wall.

[0025] The circulator includes a lower cover forming an intake port, an upper cover disposed on an upper side of the lower cover to form a discharge port, a blowing fan disposed between the lower cover and the upper cover to form air flow by rotation, and a motor disposed between the blowing fan and the lower cover to rotate the blowing fan, the lower cover including an outer plate disposed on a lower side of the blowing fan, a base plate disposed apart from the outer plate toward a radially inner side to cover a lower side of a motor of the circulator, and a connecting plate connecting the base plate and the outer plate, the base plate being formed at a position higher than the connecting plate, a boss being formed between the base plate and the connecting plate.

[0026] The first upper wall contacts the base plate and the second upper wall contacts the connecting plate, so that the circulator and the mobile device can be installed in a state of being easily fastened.

[0027] The upper wall includes a boundary rib disposed at a circumference of the second upper wall and protruding upward more than the second upper wall, a mounting portion being disposed at the connecting plate, and the boundary rib of the mobile device being fixedly disposed at the mounting portion, so that the circulator and the mobile device can be installed in a state of being easily fastened.

[0028] A guide wall is disposed at the base plate and the connecting plate, the guide wall contacting a side wall of the mobile device to restrict left and right direction movement of the mobile device, so that the circulator and the mobile device can be installed in a state of being easily fastened.

[0029] The discharge cover includes a circumferential wall disposed at an upper side of the housing to form a cylindrical-shaped edge, a guide base disposed at an inner side of the circumferential wall, and a plurality of discharge grates extending from the guide base to the circumferential wall in a radial shape, a second moving gear rotating the rotating device in a circumferential direction and a second motor rotating the second moving gear being disposed between the circumferential wall and the guide base, so that the rotating device can be rotated at an upper side of the discharge cover.

[0030] A second rack rail is formed at the rotating device, the second rack rail protruding outward from a circumferential surface of the rotating device to form a screw thread extending in a circumferential direction from the circumferential surface to be engaged with the second moving gear, so that the rotating device can be stably rotated.

[0031] Specific contents of other embodiments are included in the detailed description and the drawings.

[0032] Technical effects

[0033] The air cleaner according to the present application has one or more of the following effects.

[0034] The present application provides an air cleaner that improves the comfort of an indoor space by expanding the flow range of purified air.

[0035] In addition, another object of the present application is to provide an air cleaner that concentrates air purification on a user-desired area by increasing the range in which purified air flows.

[0036] Still another object of the present application is to provide an air cleaner in which a circulator can be stably moved, wherein the direction in which the discharge port of the circulator faces changes in the up-and-down direction.

[0037] First, a moving device is used to expand the range in which the circulator moves in the up-and-down direction, thereby enabling concentrated air purification on a user-desired area.

[0038] Second, the moving device moves by contacting the first and second rollers disposed in the rotating device through the guide ribs and the side guide, thereby stably ensuring the movement of the circulator, which has a relatively large load due to the motor and the display, etc.

[0039] The effects of the present application are not limited to the above-mentioned effects, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims. BRIEF DESCRIPTION OF DRAWINGS

[0040] Figure 1 is a perspective view of an air cleaner according to an embodiment of the present application.

[0041] Figure 2 is a sectional view of an air cleaner according to an embodiment of the present application.

[0042] Figure 3 is Figure 2 is an enlarged view of A of

[0043] Figure 4 is a perspective view of a rotating device according to an embodiment of the present application.

[0044] Figure 5 is a plan view of a rotating device according to an embodiment of the present application.

[0045] Figure 6 is a bottom view of a rotating device according to an embodiment of the present application.

[0046] Figure 7 is a sectional view of a rotating device according to an embodiment of the present application.

[0047] Figure 8 is a perspective view of a moving device according to an embodiment of the present application.

[0048] Figure 9is a top view of a mobile device of an embodiment of the present invention.

[0049] Figure 10 is a bottom view of a mobile device of an embodiment of the present invention.

[0050] Figure 11 is a sectional view of a mobile device of an embodiment of the present invention.

[0051] Figure 12 is a perspective view of a circulator of an embodiment of the present invention.

[0052] Figure 13 is a bottom view of a circulator of an embodiment of the present invention.

[0053] Figure 14 is a diagram showing Figure 3 a state in which a mobile device and a circulator move. DETAILED DESCRIPTION

[0054] Hereinafter, embodiments disclosed in the present specification will be described in detail with reference to the accompanying drawings. Identical or similar components are denoted by the same reference numerals, regardless of the figure number, and repetitive explanations will be omitted.

[0055] The suffixes "module" and "part" of the structural elements used in the following description are assigned or mixed only in consideration of the ease of writing the specification, and they do not have meanings or roles that distinguish each other by themselves.

[0056] Also, in describing the embodiments disclosed in the present specification, if it is judged that a detailed description of the related known technology can confuse the gist of the embodiments disclosed in the present specification, the detailed description thereof will be omitted. Also, the drawings are merely used to facilitate the understanding of the embodiments disclosed in the present specification, and it should be understood that the technical idea disclosed in the present specification is not limited to the drawings, but encompasses all changes, equivalents, and substitutes included in the idea and technical scope of the present invention.

[0057] The terms including ordinal numbers, such as first, second, etc., can be used to describe a variety of structural elements, but the structural elements are not limited by the terms. The terms are used only to distinguish one structural element from another structural element.

[0058] When it is referred to that one structural element is "connected" or "coupled" to another structural element, it should be understood that it can be directly connected or coupled to the other structural element, or there can be another structural element therebetween. In contrast, when it is referred to that one structural element is "directly connected" or "directly coupled" to another structural element, it should be understood that there is no other structural element therebetween.

[0059] Unless explicitly stated otherwise in the context, a singular expression includes a plural expression.

[0060] Hereinafter, an air cleaner according to an embodiment of the present application will be described with reference to the accompanying drawings.

[0061] Referring to Figure 1 , the air cleaner 10 according to an embodiment of the present application includes a blowing device 100, 200 for generating an air flow, and a circulator 300 for converting a discharge direction of the air flow generated from the blowing device 100, 200. The blowing device 100, 200 can include a first blowing device 100 and a second blowing device 200 disposed in an up-and-down direction of the first blowing device 100. The second blowing device 200 can be disposed at an upper side of the first blowing device 100. The air flow generated from the first blowing device 100 can be referred to as a first air flow, and the air flow generated from the second blowing device 200 can be referred to as a second air flow.

[0062] Referring to Figures 1-2 , the first blowing device 100 and the second blowing device 200 can be disposed in the up-and-down direction. The second blowing device 200 can be disposed at the upper side of the first blowing device 100.

[0063] The air cleaner 10 includes a housing 110, 210 forming an appearance. The housing 110, 210 includes a first housing 110 forming an appearance of the first blowing device 100, and a second housing 210 forming an appearance of the second blowing device 200.

[0064] The first housing 110 can have a cylindrical shape. An upper portion of the first housing 110 can be configured to have a smaller diameter than a lower portion. The first housing 110 can have a shape in which a width thereof is smaller as it is closer to the upper side. The first housing 110 can have a frustoconical shape in which a diameter of an upper portion thereof is smaller than a diameter of a lower portion.

[0065] The first housing 110 is formed with a first suction port 112 for suctioning air. The first suction port 112 communicates an inner side and an outer side of the first housing 110. The first suction port 112 is formed in plural. The first housing 110 can be formed with the plural first suction ports 112 in a peripheral surface thereof.

[0066] The first housing 110 can be open to the upper side. The first housing 110 can have a first discharge port 152 in an upper portion thereof. The first housing 110 can be formed with the first discharge port 152 open to the upper side.

[0067] The plural first suction ports 112 can be formed longer in the up-and-down direction. The plural first suction ports 112 can be arranged in a circumferential direction of the first housing 110. The plural first suction ports 112 can be uniformly arranged in the circumferential direction.

[0068] Thus, with the first housing 110 as a reference, air can be drawn in from any direction.

[0069] Thus, the amount of air drawn in can be increased.

[0070] A first discharge cover 150 can be disposed at an upper portion of the first air supply device 100. The first discharge cover 150 can form a first discharge port 152 that is open upward. The first discharge port 152 can be formed in a ring shape.

[0071] The first filter 120 can be disposed inside the first housing 110. A first filter frame 122 can be provided inside the first housing 110, and the first filter 120 can be disposed in the first filter frame 122.

[0072] An installation space can be provided inside the first housing 110. The first filter 120 can be installed in the installation space in a detachable manner. The first filter 120 has a cylindrical shape, and air can flow in through a peripheral surface of the first filter 120. In the process of passing through the first filter 120, impurities such as dust in the air can be filtered out.

[0073] The first filter 120 can have a cylindrical shape.

[0074] Thus, with the first filter 120 as a reference, air flowing in from any direction can be filtered. Accordingly, the filtering area of air can be increased.

[0075] The installation space can be cylindrical in correspondence with the shape of the first filter 120. The first filter 120 can be introduced into the installation space in a slidable manner during installation. Conversely, the first filter 120 can be withdrawn from the installation space in a slidable manner during detachment.

[0076] The first air supply device 100 includes a first fan 132 disposed inside the first housing 110. The first fan 132 can be rotatably disposed inside the first housing 110. The first fan 132 can be disposed at an upper side of the first filter 120.

[0077] The first air supply device 100 can include a first fan housing 130 that surrounds the first fan 132. The first fan housing 130 can be disposed at an upper side of the first filter 120. The first fan 132 can be rotatably disposed inside the first fan housing 130.

[0078] The first fan housing 130 forms a first housing suction hole 130a at a lower side and a first housing discharge hole 130b at an upper side. The first fan 132 causes air to flow in along an axial direction and discharge air upward in a radial direction. The first housing suction hole 130a can have a circular shape. The first housing discharge hole 130b can have a ring shape.

[0079] The first air supply device can include a first fan motor 134 that rotates the first fan 132.

[0080] The first fan 132 includes a first hub 132a that is coupled to a rotation shaft of the first fan motor 134, a first shroud 132b that is spaced apart from the first hub 132a, and a plurality of first static blades 132c that are disposed between the first hub 132a and the first shroud 132b. The first fan motor 134 can be coupled to an upper side of the first fan 132.

[0081] The first air supply device 100 can further include a first air supply guide 140 that is disposed at an upper side of the first fan 132 and guides air that has passed through the first fan 132 to the upper side.

[0082] The first air supply guide 140 can form a first air supply flow path 140a in the shape of a ring through which air that is discharged from the first fan 132 flows.

[0083] The first air supply guide 140 includes a first air supply body 142 in the shape of a cylinder, a first motor cover 144 in the shape of a bowl that is disposed at a central portion of the first air supply body 142, the first fan motor 134 being inserted into the first motor cover 144, and a plurality of first guide vanes 146 that are disposed in a circumferential direction to be spaced apart from each other on the first air supply flow path 140a formed between the first air supply body 142 and the first motor cover 144.

[0084] The first air supply guide 140 forms the first air supply flow path 140a in the shape of a ring through which air that is discharged from the first fan 132 flows between the first air supply body 142 and the first motor cover 144.

[0085] The plurality of first guide vanes 146 guide air that is discharged from the first fan 132 to the first air supply flow path 140a to the upper side. Each of the plurality of first guide vanes 146 can be formed in the shape of a curved plate that is vertically disposed in a manner close to the up-and-down direction. The first guide vanes 146 extend from an outer circumferential surface of the first motor cover 144 to an inner circumferential surface of the first air supply body 142. The plurality of first guide vanes 146 can be disposed to be spaced apart from each other. The plurality of first guide vanes 146 perform a function of guiding air that has passed through the first fan 132 and flows into the first air supply flow path 140a of the first air supply guide 140 to the upper side.

[0086] The first fan motor 134 can be supported at an upper side of the first motor cover 144. In addition, a rotation shaft of the first fan motor 134 can extend downward from the first fan motor 134, penetrate a bottom surface portion of the first motor cover 144, and be connected to the first hub 132a.

[0087] The first air blowing device 100 further includes a base 180 provided at a lower side of the first housing 110 and configured to be placed on the ground. The base 180 is arranged downwardly spaced apart from a lower end of the first housing 110. A spaced apart space between the first housing 110 and the base 180 is formed with a base suction portion 114.

[0088] The second air blowing device 200 can be spaced apart upwardly from the first air blowing device 100.

[0089] The air cleaner 10 can include a partition device 160 disposed between the first air blowing device 100 and the second air blowing device 200. The second air blowing device 200 can be supported in a state of being spaced apart upwardly from the first air blowing device 100 by the partition device 160.

[0090] The partition device 160 can separate or block air flows generated from the first air blowing device 100 and the second air blowing device 200. The first and second air blowing devices 100, 200 can be configured to be spaced apart from each other in the up-down direction by the partition device 160.

[0091] A spaced apart space in which the partition device 160 is arranged is formed between the first air blowing device 100 and the second air blowing device 200.

[0092] The partition device 160 includes a first partition plate 162 and a second partition plate 164 configured at an upper side of the first partition plate 162. The first partition plate 162 extends upwardly in a curved manner, and the second partition plate 164 extends downwardly in a curved manner. The first partition plate 162 extends upwardly of the first discharge cover 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 and a processor mounted to the PCB can be configured inside the partition device 160. The processor can control overall operations of the air cleaning device.

[0093] The first discharge cover 150 of the first air blowing device 100 can be arranged at a lower side of the partition device 160, and the support plate 170 of the second air blowing device 200 can be arranged at an upper side of the partition device 160.

[0094] The second air blowing device 200 can further include a support plate 170 supporting a second filter 220 of the second air blowing device 200. The support plate 170 has a substantially ring shape. The support plate is configured at an upper side of the second partition plate 164.

[0095] The support plate 170 has a ring shape and extends from an inner circumferential surface thereof to an outer circumferential surface thereof in an upwardly inclined manner with respect to an axial direction.

[0096] The second housing 210 can have a cylindrical shape. The upper portion of the second housing 210 can be configured to have a smaller diameter than the lower portion. The second housing 210 can have a shape in which the width thereof is smaller as it is closer to the upper side. The second housing 210 can have a frustoconical shape in which the diameter of the upper portion thereof is smaller than the diameter of the lower portion.

[0097] The second housing 210 is formed with a second suction port 212 through which air is suctioned. The second suction port 212 is formed long in the up-and-down direction and is formed with a plurality of portions spaced apart from each other in the circumferential direction.

[0098] The plurality of second suction ports 212 are formed uniformly in the circumferential direction along the outer circumferential surface of the second housing 210, so that air can be suctioned in any direction with the second housing 210 as a reference.

[0099] The second housing 210 has a shape similar to that of the first housing 110, and the foregoing description regarding the first housing 210 can be applied to the second housing 210.

[0100] Likewise, in the second air supply device 200, the second filter 220 is disposed in the second filter frame 222, and can be described in the same manner as described above in the first filter 120 and the first filter frame 122.

[0101] The second air supply device 200 includes a second fan 232 disposed inside the second housing 210. The second fan 232 can be rotatably disposed inside the second housing 210. The second fan 232 can be disposed at the upper side of the second filter 220.

[0102] The second air supply device 200 can include a second fan housing 230 that surrounds the second fan 232. The second fan housing 230 can be disposed at the upper side of the second filter 220. The second fan 232 can be rotatably disposed inside the second fan housing 230.

[0103] The second air supply device can include a second fan motor 234 that rotates the second fan, and the second fan housing 230 in which the second fan 232 is disposed.

[0104] The second fan 232, the second fan motor 234, and the second fan housing 230 described above have the same structure and similar shape as the first fan 132, the first fan motor 134, and the first fan housing 130 described above, and can perform the same function. Therefore, the second fan 232 can have the shape of an oblique flow fan, and is composed of a hub 232a, a shroud 232b, and a plurality of stationary vanes 232c, like the first fan 132.

[0105] The second air supply device 200 can further include a second air supply guide 240 disposed at an upper side of the second fan 232 and guiding air passing through the second fan 232 upward. The second air supply guide 240 includes a second air supply body 242 in a cylindrical shape, a second motor cover 244 in a bowl shape disposed at a central portion of the second air supply body 242, a second fan motor 234 inserted into the second motor cover 244, and a plurality of second guide vanes 246 disposed apart from each other in a circumferential direction on a second air supply flow path 240a formed between the second air supply body 242 and the second motor cover 244.

[0106] The second air supply body 242, the second motor cover 244, and the plurality of second guide vanes 246 described above have the same structure and similar shape as the first air supply body 142, the first motor cover 144, and the plurality of first guide vanes 146 described above, and can perform the same function.

[0107] A second discharge outlet 252 can be formed at an upper portion of the second air supply device 200. The second discharge outlet 252 can be opened upward.

[0108] A second discharge cover 250 can be disposed at an upper portion of the second air supply device 200. The second discharge cover 250 can form the second discharge outlet 252 opened upward. The second discharge outlet 252 can be formed in a ring shape. The second discharge cover 250 can be disposed with a second discharge grill 258 formed in a radial shape from the second discharge outlet 252.

[0109] The air cleaner 10 includes a rotating device 260 rotatably disposed at the guide base 256 to support the arrangement of the circulator 300, and a moving device 280 moving along the rotating device 260 to change an inclination angle of the circulator 300. The moving device 280 can be supported by the rotating device. The rotating device 260 can also be referred to as a support 260.

[0110] The circulator 300 can be disposed at an upper side of the second air supply device 200. The circulator 300 can adjust a wind direction of air discharged upward from the second air supply device 200. The circulator 300 can be disposed parallel or inclined to a plane formed by the second discharge outlet 252 of the second air supply device 200 at an upper side of the second discharge outlet 252.

[0111] The circulator 300 is formed with a suction inlet 310a and a discharge outlet 320a, and can transfer filtered air discharged from the second air supply device 200 to a long distance.

[0112] The circulator 300 is disposed on the upper side of the second air supply device 200. The circulator 300 can change its arrangement on the upper side of the second air supply device 200 and transfer air, which is discharged to the upper side by the second air supply device 200, in the radial direction.

[0113] Referring to Figure 2 , the circulator 300 includes a lower cover 310 forming an intake port, an upper cover 320 forming a discharge port, an air supply fan 330 disposed between the lower cover 310 and the upper cover 320 and forming an air flow by rotation, a motor 340 disposed between the air supply fan 330 and the lower cover 310 and rotating the air supply fan 330, and a motor cover 350 disposed on the lower side of the air supply fan 330 and on the outer periphery of the motor 340.

[0114] Referring to Figure 2 , the circulator 300 can further include a support 370 disposed between the upper cover 320 and the air supply fan 330 and supporting the upper cover 320, an outer cover 380 covering the outer side of the upper cover 320, and a display 390 (see Figure 3 ) disposed on the upper side of the support 370 and displaying the operation and the state of the air cleaner 10.

[0115] Referring to Figure 2 and Figure 3 , the air supply fan 330 can include a hub combined with the shaft of the motor 340, a shroud spaced apart from the hub toward the intake port side of the circulator, and a plurality of vanes provided between the hub and the shroud. The hub and the shroud can include a portion that is tilted upward more as it is closer to the radial outer side.

[0116] Referring to Figure 3 , the second discharge cover 250 includes a peripheral wall 254 disposed on the upper side of the second housing 210 and forming a cylindrical edge, a guide base 256 disposed on the inner side of the peripheral wall 254, and a plurality of second discharge grilles 258 extending from the guide base 256 to the peripheral wall 254 in a radial manner.

[0117] A rotation device 260 is disposed on the upper side of the guide base 256, and the rotation device 260 is rotatably disposed on the guide base 256 and supports the arrangement of the circulator 300. The rotation device 260 is rotatably disposed on the upper side of the guide base 256 and supports the arrangement of the circulator 300.

[0118] The guide base 256 has a circular plate shape and the second discharge grilles 258 are disposed along the periphery. The rotation device 260 can be rotatably disposed on the guide base 256.

[0119] Referring to Figure 3A second motor 259a that rotates the rotating device 260 in the circumferential direction and a motor cover (not shown) that forms a space in which the second moving gear 259b is disposed can be disposed between the peripheral wall 254 and the guide base 256. The motor cover is disposed between the plurality of second discharge grates 258.

[0120] The motor cover covers the upper side of the second motor 259a and the second moving gear 259b, and is open to the side in which the second moving gear 259b is disposed. The second moving gear 259b is disposed so as to be engaged with the second rack guide 275 of the rotating device 260, which is described below, at the portion of the motor cover that is open to the side.

[0121] The second moving gear 259b is engaged with the second rack guide 275, and thus the rotating device 260 can be moved in the circumferential direction. The second motor 259a rotates the second moving gear 259b, and thus the rotating device 260 can be rotated.

[0122] The second motor 259a and the second moving gear 259 can be disposed on opposite sides of the moving device 280 in the circumferential direction of the second housing 210.

[0123] The guide base 256 has a substantially circular plate shape. The guide base 256 has a boss 257 formed at the center thereof, which contacts the rotating device 260. The boss 257 protrudes upward from the center of the guide base 256.

[0124] A first bearing 257a can be disposed at the outer periphery of the boss 257. The first bearing 257a is disposed between the boss 257 and a boss 263b formed in a lower plate 263 of the rotating device 260, and thus supports the circumferential movement of the rotating device 260. The boss 257 of the guide base 256 can be referred to as a first boss 257, and the boss 263b of the lower plate 263 can be referred to as a second boss 263b. A groove 263a (see FIG. 6) is formed in the second boss 263b, and the first boss 257 and the first bearing 257a can be disposed in the groove 263a. Figure 7

[0125] A first electric wire hole (not shown) through which a power supply wire (not shown) passes can be formed in the guide base 256. The first electric wire hole is formed in the guide base 256 at the periphery of the boss 257.

[0126] The rotating device 260 is disposed on the upper side of the guide base 256, and is rotatably disposed in the guide base 256, thereby supporting the arrangement of the moving device 280. The rotating device 260 is rotatably disposed on the upper side of the guide base 256, and thus supports the arrangement of the circulator 300.

[0127] Referring to Figure 3 ​The air cleaner 10 includes a rotating device 260 rotatably disposed at the guide base 256 to support the arrangement of the circulator 300.

[0128] The rotating device 260 is rotatably disposed at the center of the guide base 256. The rotating device 260 can be rotatably disposed at the center of the guide base 256. The rotating device 260 is rotated with the center of the guide base 256 as a reference, so that the direction in which the circulator 300 faces can be changed in the circumferential direction. Here, the direction in which the circulator 300 faces can mean the direction in which air flowing through the circulator 300 is discharged. That is, it can mean the direction in which the discharge port 320a of the circulator 300 faces.

[0129] Referring to Figure 4 The rotating device 260 includes a lower body 262 rotatably connected to the upper side of the guide base 256 to form a curved surface protruding in the opposite direction of the moving device 280, and an upper body 270 coupled to the upper side of the lower body 262 to form a second rack guide 275 to allow the lower body 262 to rotate at the upper side of the guide base 256.

[0130] Referring to Figure 7 The lower body 262 includes a lower plate 263 disposed at the upper side of the guide base 256 to be rotatably connected to the guide base 256, and an upper plate 264 inclinedly disposed upward from one end of the lower plate 263 to face the lower wall 286 of the moving device 280. The upper plate 264 can form a curved surface protruding in the opposite direction of the moving device 280.

[0131] Referring to Figure 3 , Figure 7 and Figure 14 The moving device 280 can be a structure having a volume rather than a plate shape. The upper wall 282 and the lower wall 286 of the moving device 280 can have portions spaced apart upward and downward even if one end thereof intersects each other. In addition, the other end of the upper wall 282 and the lower wall 286 is spaced apart from each other, and the end wall 292 can connect the other end of the upper wall 282 and the lower wall 286. A space can be formed between the upper wall 282 and the lower wall 286. A space can be formed between the upper wall 282, the lower wall 286, and the end wall 292.

[0132] The rotating device 260 or the support 260 can include the upper plate 264. The upper plate 264 can form the upper side of the support 260. The upper plate 264 can form a portion of the upper side of the support 260. The upper plate 264 can be a structure facing the lower wall 286 of the moving device 280.

[0133] The upper plate 264 can be a structure exposed upward in a state in which the circulator 300 and the moving device 280 are separated from the air cleaner.

[0134] Referring to Figure 3 A groove 263a protruding upward is formed at the center of the lower plate 263 to contact the protruding column 257 of the guide base 256. The groove 263a can have a shape surrounding the outer periphery of the protruding column 257. The first bearing 257a is disposed between the groove 263a and the protruding column 257. The first bearing 257a is disposed at the center of the guide base 256 and the lower plate 263, and can stably support the rotation of the lower plate 263.

[0135] Referring to Figure 6 The second electric wire hole 263c through which the electric wire (not shown) passes is formed in the lower plate 263. The second electric wire hole 263c is formed along the periphery of the groove 263a formed at the center of the lower plate 263. The second electric wire hole 263c can be larger than the first electric wire hole (not shown). The second electric wire hole 263c is formed in a circular arc shape at the periphery of the groove 263a.

[0136] Referring to Figure 6 The lower plate 263 has a circular plate shape, and the groove 263a is formed at the center thereof.

[0137] Referring to Figure 7 The first motor 268 and the first moving gear 269 rotated by the first motor are disposed in the lower body 262. The first motor and the first moving gear 269 can be disposed in the space formed between the lower plate 263 and the upper plate 264.

[0138] Referring to Figure 7 The upper plate 264 forms a curved surface protruding in the direction in which the guide base 256 is disposed. The gear hole 264a is formed in the upper plate 264 to expose a portion of the first moving gear 269 disposed in the space between the upper plate 264 and the lower plate 263.

[0139] Referring to Figure 4 And Figure 5 The upper plate 264 includes the first rollers 266a and 266b which contact the guide ribs 286a formed in the lower wall 286 of the moving device 280 described below to prevent the moving device 280 from moving in the left and right directions.

[0140] The first rollers 266a and 266b are rotatably disposed in the upper plate 264. The first rollers 266a and 266b can be formed in a roller groove 266h recessed inward from the periphery to maintain a state of contacting the guide ribs 286a. The guide ribs 286a are disposed in the roller groove 266h of the first rollers 266a and 266b, and can move along the roller groove 266h of the first rollers 266a and 266b.

[0141] Referring to Figure 4 And Figure 5The first rollers 266a, 266b can be arranged in pairs. The first rollers 266a, 266b include a first upper roller 266a arranged on the upper side of the upper plate 264 and a first lower roller 266b arranged on the upper plate 264 on the lower side than the first upper roller 266a.

[0142] Referring to Figure 4 and Figure 5 The upper plate 264 can be provided with a protrusion 267 protruding upward to limit the lateral movement of the moving device 280. The protrusion 267 contacts a stopper 288 of the moving device 280 described below, thereby limiting the lateral movement of the moving device 280.

[0143] The upper body 270 is coupled to the lower body 262 on the upper side of the lower body 262. The upper body 270 is arranged on the upper side of the lower body 262 in an area other than the upper plate 264 of the lower body 262. The upper body 270 includes a pair of inner side walls 271 arranged vertically on both sides of the upper plate 264, an outer side wall 272 covering the upper side and the peripheral surface of the rotating device 260, and a lower end cover 273 arranged on the lower side of the outer side wall 272 and coupled to the lower body 262.

[0144] Referring to Figure 4 and Figure 5 The pair of inner side walls 271 are respectively provided with second rollers 274a, 274b that contact and rotate with side guides 294 of the moving device 280 described below. The second rollers 274a, 274b are inserted into guide grooves 295 of the side guides 294 and can contact and rotate with the side guides 294 when the moving device 280 moves.

[0145] The second rollers 274a, 274b include a second upper roller 274a arranged on the upper side of the inner side wall 271 and a second lower roller 274b rotatably fixed to the inner side wall 271 arranged on the lower side than the second upper roller 274a.

[0146] Referring to Figure 5 The first lower roller 266b is arranged between the second upper roller 274a and the second lower roller 274b, and the second upper roller 274a is arranged between the first upper roller 266a and the first lower roller 266b.

[0147] The first rollers 266a, 266b and the second rollers 274a, 274b can restrict the movement of the moving device 280 in the left and right directions. In addition, the first rollers 266a, 266b are in contact with the lower wall 286 of the moving device 280 on the upper side of the first rollers 266a, 266b, and the second rollers 274a, 274b are in contact with the side guides 294 of the moving device 280 on the lower side of the second rollers 274a, 274b, so that the moving device 280 can be prevented from vibrating in the up and down directions when moving.

[0148] That is, the first rollers 266a, 266b can be in contact with the lower face of the moving device 280, and the second rollers 274a, 274b can be in contact with the upper face of the moving device 280. Here, the lower face of the moving device refers to a face directed toward the lower portion, with reference to Figure 11 which can be the lower wall 286 of the moving device 280. In addition, the upper face of the moving device refers to a face directed toward the upper portion, with reference to Figure 9 which can refer to a face formed on the upper portion inside the guide groove 295 of the side guide 294.

[0149] With reference to Figures 6-7 , the rotating device 260 is formed with a second rack guide 275 which is formed protruding outward from the circumferential face of the rotating device and is formed with a screw thread to engage with the second moving gear 259b.

[0150] With reference to Figures 6-7 , the second rack guide 275 is formed protruding outward from the circumferential face of the lower end cap 273. The second rack guide 275 is formed in the circumferential direction along the circumferential face of the lower end cap 273. The second rack guide 275 engages with the second moving gear 259b, so that the rotating device 260 can be rotated. When the rotating device 260 is rotated, the moving device 280 disposed on the upper side and the circulator 300 are rotated together.

[0151] With reference to Figure 5 , a third electric wire hole 272a through which an electric wire (not shown) passes is formed on the upper face side of the outer side wall 272 and the lower end cap 273. The third electric wire hole 272a is formed in portions adjacent to the inner side wall 271 of the upper body 270 and the lower end cap 273, respectively. In the portions adjacent to the inner side wall 271 and the lower end cap 273, respectively, the movement of the lower cap 310 of the circulator 300 is less likely to occur, so that the degree of entanglement or interference of the electric wire can be minimized.

[0152] The moving device 280 moves along the rotating device 260 in conjunction with the circulator 300. The moving device 280 can change the inclination angle of the circulator 300. The moving device 280 includes a lower wall 286 formed protruding toward the rotating device 260. A first rack guide 287 formed to engage with the first moving gear 269 is formed in the lower wall 286.

[0153] Referring to Figure 8 , the moving device 280 can include an upper wall 282 configured at an upper side to be fastened with the circulator 300, a lower wall 286 configured at a lower side of the upper wall 282, configured with a first rack guide 287 engaged with the first moving gear 269, an end wall 292 bent perpendicularly from a side of the upper wall 282 and extended to a lower side to be connected with the lower wall 286, a side wall 290 bent from both sides of the upper wall 282 to a lower side direction and extended to a lower side to be connected with the lower wall 286 and the end wall 292, and a side guide 294 extended from a lower end of the side wall 290 to a side direction to guide movement of the moving device 280.

[0154] Referring to Figure 8 , the upper wall 282 can be formed in a stepped shape. The upper wall 282 is formed in a stepped shape, so that fastening with the circulator 300 can be facilitated. That is, due to the structure of the stepped shape of the upper wall 282, the moving device 280 can be fixedly disposed at a portion fastened with the circulator 300.

[0155] The upper wall 282 includes a first upper wall 282a connected with the lower wall 286, disposed at an upper side thereof, a second upper wall 282b connected with the first upper wall 282a, formed at a lower position than the first upper wall 282a, a third upper wall 282c disposed at a side of the second upper wall 282b, connected with the end wall 292, and a boundary rib 282d disposed at a peripheral edge of the second upper wall 282b, formed to be more protruded upward than the second upper wall 282b.

[0156] The first upper wall 282a is disposed at a position more upward than the second upper wall 282b and the boundary rib 282d.

[0157] The first upper wall 282a can be in contact with the base plate 314 of the lower cover 310. The first upper hole 283a formed in a manner fastened with the circulator 300 can be formed in the first upper wall 282a. Referring to Figure 8 , Figure 11 , two first upper holes 283a can be formed in the first upper wall 282a.

[0158] The second upper hole 284a1 to be fixed with the lower wall 286 can be formed in the first upper wall 282a. The second upper hole 284a1 can be formed in the first inner protrusion 284a protruded downward from the first upper wall 282a.

[0159] The first lower hole 283b formed in a manner fastened with the circulator 300 can be formed in the second upper wall 282b. The first lower hole 283b can be disposed at a second upper wall 282b at a distance farther than the first upper hole 283a.

[0160] A second inner protrusion 284b protruding downward is formed in a portion of the second upper wall 282b adjacent to the third upper wall 282c. The second inner protrusion 284b extends to a position where the lower wall 286 is disposed, and can contact the first upper protrusion 289a protruding upward from the lower wall 286.

[0161] Referring to Figure 3 and Figure 8 , the moving device 280 is disposed inside the second housing 210 to be radially biased to one side.

[0162] The lower wall 286 of the moving device 280 can have an arc shape. The lower wall 286 can have an arc shape protruding downward. A center of the arc can be spaced apart from a center of rotation of the blowing fan 330 of the circulator 300 in a radial direction of the circulator.

[0163] Hereinafter, the shape of the lower wall 286 is described based on a state in which the circulator 300 is horizontally disposed. The lower wall 286 can be non-symmetrical with respect to a vertical line. A portion in which a tangent line is horizontal in the lower wall 286 can be a lowermost portion of the lower wall 286. The lower wall 286 can include a first portion extending from the lowermost portion toward the circulator 300, and a second portion extending toward the second housing 210. The length of the first portion can be longer than that of the second portion.

[0164] The lowermost portion of the lower wall 286 can be disposed adjacent to the upper protrusion 289b and the inner protrusion 284b described below.

[0165] In a state in which the circulator 300 is horizontally disposed, a portion of the first rack guide 287 disposed in the first portion of the lower wall 286 can be engaged with the first moving gear 269.

[0166] Referring to Figure 11 , the lower wall 286 forms a curved surface. The first rack guide 287 formed in a length direction of the lower wall 286 is disposed in the lower wall 286, and adjusts a direction toward which the circulator 300 is directed upward and downward. Here, the length direction of the lower wall 286 can mean a direction in which the curved surface of the lower wall 286 is formed.

[0167] Referring to Figures 10-11 , the first rack guide 287 can be formed with a screw thread disposed in a center in a left-right direction of the lower wall 286 and engaged with the first moving gear 269.

[0168] A stopper 288 is provided on the lower wall 286, and is provided on one side of the first rack guide 287 in contact with the protrusion 267 of the rotating device 260 to limit the movement of the moving device 280. The stopper 288 can have a rib shape protruding downward from the lower wall 286. The stopper 288 is provided between the first rack guide 287 and the end wall 292.

[0169] Referring to Figure 11 A first upper protrusion 289a protruding upward to contact the first inner protrusion 284a of the upper wall 282 and a second upper protrusion 289b protruding upward to contact the second inner protrusion 284b of the upper wall 282 are provided on the upper surface of the lower wall 286.

[0170] Referring to Figure 10 A pair of guide ribs 286a are formed on the lower wall 286, and are provided apart from each other on both sides of the first rack guide 287 to extend in the length direction of the moving device 280 extending along the first rack guide 287. The pair of guide ribs 286a are provided apart from each other in the lateral direction from the first rack guide 287. The first rack guide 287 is provided between the pair of guide ribs 286a. The pair of guide ribs 286a are respectively provided in the roller grooves 266h of the first rollers 266a, 266b provided on the rotating device 260. Each of the roller grooves 266h of the first rollers 266a, 266b is provided in the pair of guide ribs 286a to guide the movement of the moving device 280.

[0171] The side wall 290 connects the upper wall 282, the lower wall 286, and the end wall 292, and a side guide 294 is provided on the lower end portion.

[0172] Referring to Figure 8 The side guide 294 protrudes outward from the lower end portion of the side wall 290. The lower surface of the side guide 294 forms a surface parallel to the surface formed by the lower wall 286. A guide groove 295 recessed downward is formed on the upper surface of the side guide 294. The second rollers 274a, 274b of the rotating device 260 are provided in the guide groove 295 of the side guide 294. Thus, the second rollers 274a, 274b are provided in the guide groove 295 of the side guide 294 to prevent vibration in the upward direction different from the moving direction when the moving device 280 moves.

[0173] The moving device 280 can include a lower case 280b covering the lower side and provided on the upper side of the rotating device 260, and an upper case 280a provided on the upper side of the lower case 280b and combined with the circulator 300.

[0174] Referring to Figure 8The upper housing 280a can include an upper wall 282, an end wall 292, a side wall 290, and a side guide 294, and the lower housing 280b can include a lower wall 286.

[0175] The circulator 300 is fastened to the mobile device 280 with the lower cover 310.

[0176] Referring to Figure 13 The lower cover 310 includes an outer plate 312 disposed at a lower side of the blowing fan 330, a base plate 314 disposed apart from the outer plate 312 toward a radially inner side, covering a lower side of the motor 340, and a connection plate 316 connecting the base plate 314 and the outer plate 312.

[0177] The suction port 310a formed between the base plate 314 and the outer plate 312 can be provided with a plurality of ribs (not shown) connecting the base plate 314 and the outer plate 312. The lower cover 310 can be provided with a filter 400 filtering impurities in air flowing into the circulator 300. The filter 400 is disposed in the suction port formed between the outer plate 312 and the base plate 314.

[0178] Referring to Figure 3 The outer plate 312 has a form extending upward more as it is closer to a radially outer side. The outer plate 312 can have a curved surface shape of which at least a portion protrudes outward. Such a curved surface shape can form air flow such that a portion of air discharged upward flows in a direction in which a discharge port 320a of the circulator 300 faces, along a surface of the outer plate 312.

[0179] Referring to Figure 13 The base plate 314 is disposed at a center of the lower cover 310. The base plate 314 covers a center of the suction port 310a formed in the lower cover 310. That is, the suction port 330a of the blowing fan 330 is closed in a partial area by the base plate 314. The base plate 314 is connected to the mobile device 280 that changes the arrangement of the circulator 300.

[0180] Referring to Figure 13 The connection plate 316 extends from one side of the base plate 314 toward a radially outer side and is connected to the outer plate 312. The connection plate 316 can be coupled to the base plate 314 and the mobile device 280.

[0181] The base plate 314 can be formed at a position higher than the connection plate 316, and a boss can be formed between the base plate 314 and the connection plate 316. A guide wall 315 is disposed at the base plate 314 and the connection plate 316, and contacts the side wall 290 of the mobile device 280, thereby being able to limit the left and right direction movement of the mobile device 280. The guide wall 315 is disposed in a pair spaced apart from each other at the base plate 314 and the connection plate 316, and is formed protruding downward.

[0182] A mounting portion 317 is provided on the connecting plate 316, which secures the boundary rib 282d of the moving device 280. The mounting portion 317 is positioned outside the boundary rib 282d of the moving device 280, surrounding it, allowing the moving device 280 to be stably mounted on the lower cover 310. Guide walls 315 may be provided on both sides of the mounting portion 317. The mounting portion 317 and guide walls 315 secure the arrangement of the moving device 280 on the lower cover 310, thereby enabling easy fastening.

[0183] Reference Figure 13 The lower cover 310 includes a side plate 318 extending vertically from a connecting plate 316 disposed adjacent to the outer plate 312. The side plate 318 extends from both ends of the connecting plate 316 in a direction perpendicular to the connecting plate 316. The side plate 318 extends vertically from the connecting plate 316 and is connected to the outer plate 312.

[0184] A fourth wire hole 319 is formed on the side plate 318 for wires extending from the air supply devices 100 and 200 to pass through.

[0185] Reference Figure 3 and Figure 14 The moving device 280 can be moved due to the rotation of the first moving gear 269 disposed in the rotating device 260. As the moving device 280 moves, the direction in which the circulator 300 faces can be adjusted in the vertical direction.

[0186] Reference Figure 3 and Figure 14 The circulator 300 can rotate with respect to the center of the virtual circle of the extended lower wall 286. The circulator 300 can tilt relative to the second housing 210 or in a horizontal direction, and the center of the circulator 300 can move up and down. The center of the circulator 300 can move upward and vertically, and its center can move downward and horizontally.

[0187] The center of the virtual circle extending from the lower wall 286, i.e., the rotation center of the tilted circulator, can be separated from the rotation center of the circulator's air supply fan. The center of the virtual circle extending from the lower wall 286 can be located inside the circulator.

[0188] Figure 3 This shows the state of the circulator 300 in horizontal configuration. Figure 14 This shows the circulator 300 tilted at its maximum angle relative to the horizontal direction. It can be... Figure 3 The state is defined as the looper 300 being in the stopped position, which can... Figure 14 The state is defined as the looper being in the driving position.

[0189] The upper side periphery of the outer cover can be defined as a discharge end of the outer cover when the circulator 300 is in the stop state. In the discharge end of the outer cover 380, a portion corresponding to the moving means 280 in the circumferential direction of the second housing 210 or the circulator 300 can be located more upward than the upper side edge of the second housing 210 when the circulator 300 is in the driving state. Also, the portion can be adjacent to the upper side edge of the second housing in the radial direction when the circulator 300 is in the driving state. Also, the portion can be adjacent to the upper side edge of the second housing in the radial direction of the second housing during the process in which the circulator 300 moves from the driving state to the stop state or from the stop state to the driving state.

[0190] The foregoing embodiments of the present application are not mutually exclusive or distinguished from each other. The structures or functions of the foregoing embodiments of the present application can be mixed or combined.

[0191] For example, this means that the structure A described in a certain embodiment and / or a drawing and the structure B described in another embodiment and / or a drawing can be combined. That is, it means that the combination between the structures can be made even if it is not directly described, except for the case where it is described that the combination is not possible.

[0192] The foregoing detailed description is not to be interpreted as limiting the application, but rather as a representative example of the application. The scope of the application is to be determined by reasonable interpretation of the appended claims, and all modifications within the scope of the application are included in the scope of the application.

Claims

1. An air purifier, wherein, include: An air supply device, equipped with a filter, discharges air that has passed through the filter upwards through an outlet located at the top; A circulator, having a blower fan, is positioned above the outlet to change the flow direction of the air discharged through the outlet; A support member is installed on the upper part of the air supply device and is provided with a first moving gear. The support member is located on the lower side of the circulator and supports the circulator. A moving device, disposed between the support and the circulator and coupled to the circulator, has a first rack guide that meshes with the first moving gear so as to be movable relative to the support; The mobile device includes: The upper wall is connected to the circulator; The lower wall, one end connected to the upper wall, extends from the one end in a downwardly convex arc shape, and the other end is spaced apart from the upper wall in the direction of the rotation axis of the air supply fan; and A pair of sidewalls extend from the two side edges of the lower wall along the length direction of the lower wall to the upper wall along the rotation axis direction of the air supply fan; The first rack guide extends along the length of the lower wall and is disposed on the side of the lower wall facing the support member.

2. The air purifier according to claim 1, wherein, The mobile device also includes a side guide that protrudes from the pair of sidewalls, is supported by the support, and guides the movement of the mobile device.

3. The air purifier according to claim 1, wherein, Also includes: A stop, protruding from the lower wall and disposed in the opposite direction to the circulator relative to the first rack guide, restricts the movement of the moving device; and A protrusion is positioned in the opposite direction to the first moving gear in the moving direction of the moving device, and contacts the stop to restrict the lateral movement of the moving device.

4. The air purifier according to claim 1, wherein, include: A first roller, disposed on the support member, supports the lower wall of the moving device, and has a roller groove recessed from the peripheral surface of the first roller and extending circumferentially. Also includes: A guide rib protrudes from the side of the lower wall facing the support member and extends parallel to the first rack guide rail, the guide rib being inserted into the roller groove of the first roller.

5. The air purifier according to claim 2, wherein, The support includes a roller that contacts and rotates with the upper side of the side guide.

6. The air purifier according to claim 4, wherein, Also includes: The second roller is rotatably disposed on the support member and contacts the upward-facing surface of the moving device.

7. The air purifier according to claim 6, wherein, The first roller includes a first upper roller and a first lower roller disposed at a position lower than the first upper roller. The second roller includes a second upper roller and a second lower roller disposed at a position lower than the second upper roller. When viewed from above, the first lower roller is positioned between the second upper roller and the second lower roller.

8. The air purifier according to claim 1, wherein, The moving device further includes an end wall that extends from the other end of the lower wall toward the upper wall and connects the other end of the lower wall and the upper wall.

9. The air purifier according to claim 1, wherein, The circulator includes: The lower cover forms the suction port; The upper cover, disposed above the lower cover, forms an outlet; and A motor, disposed between the air supply fan and the lower cover, causes the air supply fan to rotate; The air supply fan includes: The hub is connected to the shaft of the motor; A protective cover, spaced apart from the hub towards the intake side of the circulator; and A plurality of stationary blades are disposed between the hub and the protective cover; The hub and the shield include portions that slope upwards towards the radially outer side.

10. The air purifier according to claim 9, wherein, The lower cover includes an outer plate forming its outer perimeter. The outer panel tilts upwards as it gets closer to the outside.

11. The air purifier according to claim 10, wherein, The circulator includes a cylindrical outer cover forming its outer periphery. The lower end of the outer cover intersects with the upper end of the outer plate.

12. The air purifier according to claim 9, wherein, The top cover includes: Inner edge; The outer edge is located radially outside the inner edge; and A plurality of moving blades form the outlet of the circulator, connecting the inner edge and the outer edge, and tilting downwards towards the outer edge.

13. The air purifier according to claim 9, wherein, The moving device also includes an upper wall that extends along and is fastened to the lower surface of the circulator, with one end of the upper wall connected to one end of the lower wall; The upper wall includes: A first upper wall, connected to the lower wall, is disposed on the upper side of the lower wall; and The second upper wall is connected to the first upper wall and is formed at a lower position than the first upper wall; The lower cover includes: The outer panel is located on the lower side of the air supply fan; A substrate, arranged radially inwardly spaced from the outer plate, covers the underside of the motor of the circulator; and Connecting plate, connecting the base plate and the outer plate. The substrate is formed at a position higher than the connecting plate, and a boss is formed between the substrate and the connecting plate.

14. The air purifier according to claim 13, wherein, The first upper wall is in contact with the substrate, and the second upper wall is in contact with the connecting plate.

15. The air purifier according to claim 13, wherein, The upper wall includes boundary ribs disposed around the periphery of the second upper wall and protruding upwards from the second upper wall. The connecting plate is provided with a mounting part, and the boundary ribs of the moving device are fixedly disposed in the mounting part.

16. The air purifier according to claim 13, wherein, Guide walls are provided on the base plate and the connecting plate, and the guide walls contact the side wall of the moving device to restrict the left and right movement of the moving device.

17. The air purifier according to claim 1, wherein, The air supply device includes: The outer shell extends vertically to form an intake port with an opening on the upper side; A discharge cover, forming an upwardly opening discharge port, is disposed above the opening in the housing. The discharge cover includes: a peripheral wall disposed on the upper side of the housing and forming a cylindrical edge; a guide base disposed on the inner side of the peripheral wall; and a plurality of discharge grilles extending radially from the guide base to the peripheral wall. A fan, disposed inside the housing, directs airflow from the intake port to the exhaust port; A second moving gear and a motor are disposed between the peripheral wall and the guide base. The second moving gear causes the support to rotate circumferentially, and the motor causes the second moving gear to rotate.

18. The air purifier according to claim 17, wherein, A second rack guide is formed on the support member, the second rack guide has a thread extending circumferentially from the peripheral surface of the support member, the thread protruding outward from the peripheral surface of the support member to mesh with the second moving gear.

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