A water-based air purifier with a compact intake lower guide structure

Abstract

To provide a water-based air purifier having a sufficient intake performance.SOLUTION: A water-based air purifier may comprise: an intake / exhaust module comprising an intake device comprising a fan which generates a downward air flow during a rotation; a water tank module which is disposed below the intake / exhaust module, and which comprises a water tank for containing a liquid; and a driving module coupled to the lower portion of the water tank module and configured to rotate the liquid filling the water tank. The intake / exhaust module may comprise: an intake space disposed between the intake device and the water tank module and configured to guide air supplied downward into the water tank; and a guide configured to guide air inside the water tank to outside air and configured to define an exhaust space extending in a first direction perpendicular to the vertical direction. The intake space and the exhaust space may be disposed to overlap each other when viewed in a second direction perpendicular to the vertical direction and the first direction.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present disclosure relates to an aqueous air purifier, and more particularly to an aqueous air purifier with a compact air intake lower guide structure. [Background technology]

[0002] As industry develops, the amount of fine dust in the atmosphere is increasing due to air pollution such as industrial dust, automobile fumes, and yellow sand. The number of days when the amount of fine dust exceeds the recommended standard is increasing, resulting in restrictions on daily life as well as outdoor activities. Prolonged exposure to fine dust can lead to the inhalation of heavy metals contained in the fine dust, adversely affecting health. Furthermore, when ventilating the home to expel dust and carbon dioxide dispersed during indoor activities, fine dust from the outside air can be inhaled, degrading indoor air quality and potentially having even greater adverse effects on the health of young children and those with respiratory problems.

[0003] Various types of air purifiers have been developed and are commercially available that purify polluted indoor air by collecting harmful substances such as dust generated indoors or fine dust drawn in from the outside, and then discharge the purified air. Among the various types of air purifiers, dry air purifiers are configured to purify and discharge fine dust using a filter for physically filtering fine dust, a dust collecting plate for electrically collecting fine dust, or both.

[0004] However, in the case of dry air purifiers, if pollutants accumulate on the filter or dust collection plate beyond a certain amount, the performance of the filter or dust collection plate will decrease, so the filter or dust collection plate must be replaced or cleaned at appropriate times. Furthermore, if the filter or dust collection plate needs to be replaced periodically, additional costs will be incurred for the replacement of the filter or dust collection plate.

[0005] To address the problems of dry air purifiers, water-based air purifiers have emerged. Water-based air purifiers include a water tank that contains water. They draw in outside air, friction the air against the water's surface, dissolve contaminants in the air, and then discharge the decontaminated air. In water-based air purifiers, air intake performance is important for improving air purification capabilities. Conventional water-based air purifiers draw air from the side. That is, in conventional water-based air purifiers, the rotation axis of the intake fan is horizontal. When an intake fan is provided in a side-drawing configuration, the size of the intake fan is small compared to the size of the product, limiting the ability to improve intake performance and creating unfavorable external design issues. Summary of the Invention [Problem to be solved by the invention]

[0006] The embodiments of the present disclosure address the problems of conventional aqueous air purifiers. Specifically, the present disclosure aims to provide an aqueous air purifier that has sufficient air intake performance compared to its size by providing an efficient and compact air intake guide structure. [Means for solving the problem]

[0007] According to one embodiment, an aqueous air purifier with a compact air intake downward guide structure includes an intake / exhaust module including an intake device including a fan that rotates about a vertical central axis and generates a downward airflow upon rotation; an aquarium module disposed below the intake / exhaust module and including a tank for containing liquid; and a drive module coupled to a lower part of the aquarium module and configured to rotate the liquid filled in the tank, wherein the intake / exhaust module includes a guide disposed between the intake device and the aquarium module, defining an intake space configured to guide air supplied downward through the intake / exhaust module into the aquarium, and an exhaust space configured to guide air inside the tank to the outside and extending in a first direction perpendicular to the vertical direction, and the intake space and the exhaust space may be arranged to overlap each other when viewed in a second direction perpendicular to the vertical direction and the first direction.

[0008] In one embodiment, the guide may include a pipe extending in the vertical direction, with an upper end connected to the exhaust space and a lower end connected to the water tank.

[0009] In one embodiment, the width of the lowermost end of the exhaust space in the second direction may be greater than or equal to the width of the inner circumferential surface of the pipe in the second direction.

[0010] In one embodiment, the pipe may extend downwardly in the exhaust space.

[0011] In one embodiment, the guide may include a blade extending from the outer periphery of the pipe in a direction away from the central axis.

[0012] In one embodiment, the blades may extend downward along the outer periphery of the pipe in a counterclockwise or clockwise rotating manner.

[0013] In one embodiment, the intake and exhaust module further includes an upper housing surrounding at least the guide, and the upper housing may include a window that partially defines the intake space and communicates the exhaust space with outside air.

[0014] In one embodiment, the cross-sectional area of ​​the intake space taken along a plane perpendicular to the vertical direction may decrease toward the bottom.

[0015] In one embodiment, the cross-sectional area of ​​the exhaust space taken along a plane perpendicular to the vertical direction may increase toward the bottom.

[0016] In one embodiment, the guide includes a partition wall that defines the exhaust space, and the intake space may include a first intake space and a second intake space that are spatially separated from each other by the partition wall.

[0017] In one embodiment, the partition wall includes a first partition wall extending in the first direction and a second partition wall spaced apart from the first partition wall in the second direction and extending parallel to the first partition wall, and at least a portion of the exhaust space may be defined as the space between the first partition wall and the second partition wall.

[0018] In an embodiment, the distance between the first and second partition walls in the second direction may increase downward.

[0019] In one embodiment, the guide includes a pair of openings that are open upward and have bases adjacent to each other, bounded by the upper end of the partition wall, and the first air intake space and the second air intake space can extend from each of the pair of openings.

[0020] In one embodiment, the aquarium module includes a first rotating member arranged in the aquarium to be rotatable around the central axis, including at least one blade extending radially from a center, and having a first magnetic member coupled thereto; the drive module includes a second rotating member arranged opposite the first rotating member and having a second magnetic member coupled thereto; and a motor configured to rotate the second rotating member around the central axis; and when the second rotating member rotates, the first rotating member can rotate due to the magnetic force generated between the first magnetic member and the second magnetic member.

[0021] In one embodiment, the intake / exhaust module and the water tank module may be detachably coupled to each other. [Effects of the Invention]

[0022] According to the embodiments of the present disclosure, an aqueous air purifier with sufficient air intake performance can be provided in a compact size.

[0023] According to an embodiment of the present disclosure, it is possible to provide a compact air purifier by efficiently arranging the intake and exhaust spaces while easily filtering contaminants in the air using water.Furthermore, it is possible to provide an air purifier with a good appearance and a structure that prevents water from leaking out of the tank even when placed in a shaky place such as a car. [Brief explanation of the drawings]

[0024] [Figure 1] FIG. 1 is a perspective view of an air purifier according to an embodiment. [Figure 2] FIG. 2 is a perspective view of the inside of the air purifier of FIG. [Figure 3] FIG. 3 is an exploded perspective view of the air purifier of FIG. [Figure 4] FIG. 4 is a cross-sectional view of the air purifier of FIG. 1 taken along line II'. [Figure 5] FIG. 5 is a cross-sectional view of the air purifier of FIG. 1 taken along line II-II'. [Figure 6] FIG. 6 shows the guide viewed in a first direction. [Figure 7] Figure 7 shows the guide from below. [Figure 8] 8 is a cross-sectional view of the air purifier of FIG. 1 taken along the line P1-P1' of FIG. [Figure 9] 9 is a cross-sectional view of the air purifier of FIG. 1 taken along the line P2-P2' of FIG. [Figure 10] 10 is a cross-sectional view of the air purifier of FIG. 1 taken along the line P3-P3' of FIG. [Figure 11] 11 is a cross-sectional view of the air purifier of FIG. 1 taken along the line P4-P4' of FIG. [Figure 12] 12 is a cross-sectional view of the air purifier of FIG. 1 taken along the line P5-P5' of FIG. DETAILED DESCRIPTION OF THE INVENTION

[0025] The embodiments of the present disclosure are provided for the purpose of explaining the technical concept of the present disclosure, and the scope of the rights of the present disclosure is not limited to the embodiments presented below or the specific descriptions of these embodiments.

[0026] Unless otherwise defined, all technical and scientific terms used in this disclosure have the meanings commonly understood by those of ordinary skill in the art to which this disclosure belongs. All terms used in this disclosure have been selected for the purpose of more clearly describing this disclosure, and not for the purpose of limiting the scope of rights provided by this disclosure.

[0027] As used in this disclosure, terms such as "including," "comprising," "having," and the like should be understood as open-ended terms that include the possibility of including other embodiments, unless otherwise stated in the phrase or sentence in which the term is included.

[0028] Unless otherwise specified, singular expressions written in this disclosure may include plural meanings, and this also applies to singular expressions written in the claims.

[0029] The terms "first," "second," etc. used in this disclosure are used to distinguish multiple elements from one another and do not limit the order or importance of the elements.

[0030] In this disclosure, when a component is referred to as being "coupled" or "connected" to another component, it should be understood that the component may be directly coupled or connected to the other component, or may be coupled or connected via another component.

[0031] Directional terms such as "lower" and "bottom" used in this disclosure refer to the direction in which gravity acts when the air purifier is normally placed in the accompanying drawings, and directional terms such as "upper" and "top" refer to the opposite direction.

[0032] Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. In the accompanying drawings, identical or corresponding components are assigned the same reference numerals. Furthermore, in the following description of the embodiments, duplicated descriptions of identical or corresponding components may be omitted. However, omission of a description of a component does not necessarily mean that such a component is not included in a certain embodiment.

[0033] FIG. 1 is a perspective view of an aqueous air purifier (1) equipped with a compact-type air intake downward guide structure according to one embodiment. FIG. 2 is a perspective view of the interior of the air purifier (1) of FIG. 1. FIG. 3 is an exploded perspective view of the air purifier (1) of FIG. 1. FIG. 4 is a cross-sectional view of the air purifier (1) of FIG. 1 taken along line I-I'. FIG. 5 is a cross-sectional view of the air purifier (1) of FIG. 1 taken along line II-II'. The following description will be made with reference to FIGS. 1 to 5.

[0034] According to one embodiment, an aqueous air purifier 1 with a compact air intake downward guide structure includes an intake / exhaust module 10, an aquarium module 30, and a drive module 50. At least two of the intake / exhaust module 10, the aquarium module 30, and the drive module 50 may be detachably connected to each other. For example, the intake / exhaust module 10 and the aquarium module 30 may be detachably connected to each other. This allows a user to easily empty or fill the water in the aquarium module 30. As another example, the aquarium module 30 and the drive module 50 may be detachably connected to each other.

[0035] The intake and exhaust module 10 includes an intake device 12 and a guide 13 configured to draw outside air into the aquarium 31. Referring to Figures 4 and 5, the intake device 12 may include a fan 121 including a plurality of blades and a motor for rotating the fan 121. The fan 121 rotates about a central axis O in the up-down direction (UD) and generates a downward airflow as it rotates.

[0036] The guide (13) is disposed between the air intake device (12) and the water tank module (30). The guide (13) guides (13) the air supplied to the lower side by the air intake device (12) into the water tank (31) of the water tank module (30) and guides (13) the air inside the water tank (31) to the outside air.

[0037] The intake and exhaust module 10 may include an upper housing 11 that surrounds a guide 13. The upper housing 11 may surround the intake device 12 and the guide 13.

[0038] The aquarium module 30 includes a water tank 31 that can contain a liquid such as water. The aquarium module 30 may include a first rotating member 32 that is rotatably disposed within the water tank 31 around a central axis O. The first rotating member 32 is configured to rotate the liquid contained within the water tank 31 when rotated. The first rotating member 32 may include at least one blade 34 extending radially from the center. The blade 34 protrudes upward from the upper surface of the first rotating member 32 by a predetermined height. As the first rotating member 32 rotates, it pushes the liquid within the water tank 31 in a circumferential direction, causing the liquid to rotate within the water tank 31 around the central axis O.

[0039] At least one first magnetic member 33 may be coupled to the first rotating member 32. The first magnetic member 33 is made of a magnetic material. The first magnetic member 33 may be disposed at a plurality of positions on the first rotating member 32. For example, a plurality of first magnetic members 33 may be arranged in the circumferential direction on the first rotating member 32.

[0040] The drive module (50) may include a lower housing (51), a second rotating member (52) disposed within the lower housing (51), and a motor (54) configured to rotate the second rotating member (52). The second rotating member (52) is rotatably disposed about a central axis (O). The second rotating member (52) is disposed opposite the first rotating member (32). The second rotating member (52) is coupled to the motor (54) and may rotate about the central axis (O). The motor (54) may be coupled to a support (55). Referring to FIG. 3, the lower housing (51) may include a lower plate (56) that defines the bottom of the air purifier (1). The support (55) may be coupled to the lower plate (56).

[0041] At least one second magnetic member 53 may be coupled to the second rotating member 52. The second magnetic member 53 is made of a magnetic material. The second magnetic member 53 may be disposed at a plurality of positions on the second rotating member 52. For example, a plurality of second magnetic members 53 may be arranged in the circumferential direction on the second rotating member 52.

[0042] The first rotating member 32 is disposed within the water tub 31, and the second rotating member 52 is disposed outside the water tub 31. Specifically, the second rotating member 52 is disposed on the bottom of the water tub 31, and the second rotating member 52 is disposed below the water tub 31. As described above, the first rotating member 32 and the second rotating member 52 are separated in the up-down direction (UD), and there is no mechanical element transmitting power between them. However, the first rotating member 32 can rotate together with the second rotating member 52 due to the magnetic force between the first magnetic member 33 and the second magnetic member 53. When the second rotating member 52 is rotated by the motor 54, the magnetic force acting between the second magnetic member 53 connected to the second rotating member 52 and the first magnetic member 33 connected to the first rotating member 32 rotates the first rotating member 32. In the air purifier (1) of the present disclosure, power is transmitted between the first rotating member (32) and the second rotating member (52) by magnetic force between magnetic members, rather than by mechanical elements. Therefore, the air purifier (1) of the present disclosure can more easily ensure airtightness of the water tub (31) than in a case where the power of the motor (54) is mechanically transmitted to the first rotating member (32) in the water tub (31).

[0043] The size and number of magnetic members 32, 52 may be determined so as to rotate the water in water tank 31 with sufficient strength. For example, if water tank 31 does not have a large capacity and can rotate the water in water tank 31 with little force, or if the water does not need to be rotated at a high rotation speed, magnetic members 32, 52 may be provided in small sizes or in small numbers. Conversely, if water tank 31 has a large capacity and must rotate the water in water tank 31 with a relatively large force, or if the water needs to be rotated at a high rotation speed, magnetic members 32, 52 may be provided in large sizes or in large numbers.

[0044] In one embodiment, a magnetic attraction may occur between the first magnetic member 33 and the second magnetic member 53. For example, the bottom surface of the first magnetic member 33 and the top surface of the second magnetic member 53 may have opposite polarities. In this case, when the first rotating member 32 and the second rotating member 52 rotate together, the first magnetic member 33 and the second magnetic member 53 may face each other in the up-down direction (UD).

[0045] In another embodiment, a magnetic repulsion force may be generated between the first magnetic member 33 and the second magnetic member 53. For example, the lower surface of the first magnetic member 33 and the upper surface of the second magnetic member 53 may have the same polarity. In this case, when the first rotating member 32 and the second rotating member 52 rotate together, the first magnetic member 33 and the second magnetic member 53 may be arranged so as not to face each other in the up-down direction (UD). When viewed in the up-down direction (UD), the first magnetic member 33 and the second magnetic member 53 may be arranged alternately in the circumferential direction.

[0046] In FIGS. 1 to 5, the first rotating member 32 that rotates the water in the water tank 31 is provided in the form of a disk, but this is merely an example and the embodiments of the present disclosure are not limited thereto.

[0047] In other embodiments, the driving force of the motor may be directly transmitted to the first rotating member (32, 35), and the magnetic member (33, 53) may be omitted. For example, the air purifier (1) may include a shaft connecting the motor and the first rotating member (32, 35).

[0048] Referring to Figure 2, the guide 13 can define an intake space S1 and an exhaust space S2. Air drawn in from the outside through the intake device 12 enters the water tank 31 along the intake passage FP1. The intake passage FP1 passes through the intake space S1 of the guide 13. Air inside the water tank 31 is exhausted to the outside along the exhaust passage FP2. The exhaust passage FP2 passes through the exhaust space S2 of the guide 13.

[0049] FIG. 6 shows the guide (13) viewed in a first direction. FIG. 7 shows the guide (13) viewed from below. FIG. 8 is a cross-sectional view of the air purifier (1) of FIG. 1 taken along line P1-P1' in FIG. 5. FIG. 9 is a cross-sectional view of the air purifier (1) of FIG. 1 taken along line P2-P2' in FIG. 5. FIG. 10 is a cross-sectional view of the air purifier (1) of FIG. 1 taken along line P3-P3' in FIG. 5. FIG. 11 is a cross-sectional view of the air purifier (1) of FIG. 1 taken along line P4-P4' in FIG. 5. FIG. 12 is a cross-sectional view of the air purifier (1) of FIG. 1 taken along line P5-P5' in FIG. 5.

[0050] The guide 13 can define an intake space S1 configured to guide 13 the air supplied downward through the intake and exhaust module 10 into the water tank 31, and an exhaust space S2 configured to guide 13 the air inside the water tank 31 to the outside air and extending in a first direction D1 perpendicular to the up-down direction UD. The first direction includes a direction that is approximately perpendicular to the up-down direction.

[0051] The intake space (S1) and the exhaust space (S2) are arranged to overlap each other when viewed in the up-down direction (UD) and in a second direction (D2) perpendicular to the first direction (D1).

[0052] In the present disclosure, the first direction (D1) includes a direction that is generally perpendicular to the up-down direction (UD). The second direction (D2) may be generally perpendicular to the up-down direction (UD). The second direction (D2) may intersect with the first direction (D1) at an angle other than 90°. For convenience of explanation, the present disclosure will be described assuming that the up-down direction (UD), the first direction (D1), and the second direction (D2) are perpendicular to each other, but the embodiments of the present disclosure are not limited thereto.

[0053] The guide 13 may include a partition 14 that defines an exhaust space S2. The partition 14 may extend in a first direction D1 and include an exhaust space S2 extending in the first direction D1 therein. One surface of the partition 14 defines the intake space S1, and the other surface of the partition 14 defines the exhaust space S2. An outer surface 14a of the partition 14 may define the exhaust space S2, and an inner surface 14b of the partition 14 may define the exhaust space S2.

[0054] The intake space (S1) may include at least two spaces spatially separated from each other by a partition wall 14. For example, the intake space (S1) may include a first intake space (S11) and a second intake space (S12) separated from each other by a partition wall 14. In the drawings of the present disclosure, the intake space (S1) of the air purifier (1) is divided into two intake spaces (S11 and S12), but the embodiments of the present disclosure are not limited thereto, and the intake space (S1) may be a single space or may include three or more spaces separated from each other.

[0055] The partition 14 may include a first partition 141 and a second partition 142 extending in a first direction D1. The second partition 142 may be spaced apart from the first partition 141 in a second direction D2 and extend parallel to the first partition 141. At least a portion of the exhaust space S2 may be defined as the space between the first partition 141 and the second partition 142.

[0056] The first partition wall (141) partially defines a first intake space (S11), and the second partition wall (142) partially defines a second intake space (S12). The first partition wall (141) and the second partition wall (142) are spaced apart from each other in the second direction (D2) to define an exhaust space (S2). The first partition wall (141) adjoins the first intake space (S11) and the exhaust space (S2) in the second direction (D2), and the second partition wall (142) adjoins the second intake space (S12) and the exhaust space (S2) in the second direction (D2).

[0057] 6, the width of the partition 14 in the second direction (D2) may increase downward. The distance W between the first partition 141 and the second partition 142 in the second direction (D2) may increase downward. For example, the partition 14 may have an inverted "V" shape when viewed in the first direction (D1).

[0058] Because the distance (W) between the first partition wall (141) and the second partition wall (142) in the second direction (D2) increases downward, a cross section of the exhaust space (S2) cut along a plane perpendicular to the first direction (D1) may have a triangular shape. The shape of the outside air opening of the exhaust space (S2) may be triangular. In this disclosure, a triangle may be understood to include not only a triangle in the strict mathematical definition but also a shape that widens from the top to the bottom. For example, the shape of the outside air opening of the illustrated exhaust space (S2) may be a triangle with both sides concave inward.

[0059] Referring to FIG. 8, the guide 13 may be open upward (or toward the intake device 12) and include a pair of openings C11, C12 adjacent to each other, bounded by the upper end 143 of the partition wall 14. The pair of openings C11, C12 may be semicircular, with their bases facing each other. The semicircle may be defined by a straight base and an arc connecting both ends of the base. The guide 13 includes a circular upper ring 15, and the upper end 143 of the partition wall 14 extends in a first direction D1 through the central axis O, thereby allowing the upper ring 15 and the upper end 143 of the partition wall 14 to define the pair of openings C11, C12. A first intake space S11 and a second intake space S12 may extend from each of the pair of openings C11, C12.

[0060] 8 to 11, the cross-sectional area (A1, A2, A3, A4) of the intake space S1 taken in a horizontal plane (a plane perpendicular to the up-down direction (UD)) decreases toward the bottom. As a result, the flow velocity of air passing through the intake space S1 may increase toward the bottom. This is because, when a certain amount of air flows through the intake space S1, the smaller the cross-sectional area through which the air passes, the faster the flow velocity.

[0061] 9 and 10, the cross-sectional area (B1, B2) of the exhaust space S2 taken on a horizontal plane increases toward the bottom. The change in the cross-sectional area of ​​the intake space S1 and the exhaust space S2 is at least partly due to the fact that the width of the partition wall 14 in the second direction D2 increases toward the bottom. That is, the cross-sectional area of ​​the intake space S1 may decrease toward the bottom in conjunction with the increase in the cross-sectional area of ​​the exhaust space S2.

[0062] 8 to 11, the center of the cross-sectional areas (A1, A2, A3, A4) of the intake space (S1) may become farther from the central axis (O) as it moves downward. As the exhaust space (S2) becomes wider as it moves downward, the center of the cross-sectional areas (A1, A2, A3, A4) of the intake space (S1) becomes farther from the center. As a result, air passing through the intake space (S1) may concentrate at the outer periphery (or the area adjacent to the inner periphery (11a) of the upper housing (11)) away from the central axis (O). The air concentrated at the outer periphery is supplied to the outer periphery of the water tank (31) intensively, comes into contact with the surface of the liquid filled in the water tank (31), and then gathers at the center of the water tank (31) and enters the exhaust space (S2) through the pipe (17) formed at the center of the guide (13).

[0063] The guide 13 may include an outer wall 16. Referring to Figures 9 and 10, a surface 16b of the outer wall 16 may partially define an intake space S1. The surface 16b of the outer wall 16 may extend at an angle downward and toward the central axis O. The inclined surface 16b of the outer wall 16 may partially contribute to the decrease in cross-sectional area A1, A2, A3, A4 of the intake space S1 toward the lower side.

[0064] Referring to FIG. 2, the upper housing 11 may include a window 19 that communicates the exhaust space S2 with the outside air. The upper housing 11 may partially define the intake space S1. That is, the inner peripheral surface 11a of the upper housing 11 may partially define the intake space S1. The window 19 may have a shape corresponding to the outside air opening of the exhaust space S2. For example, the outside air opening of the exhaust space S2 may have a triangular shape with both sides concave inward, and the window 19 may also have a triangular shape with both sides concave inward.

[0065] 4 and 5, the guide 13 may include a pipe 17 extending in the up-down direction (UD) along a central axis O. The pipe 17 may have an upper end connected to the exhaust space S2 and a lower end connected to the water tank 31. A lower opening 17a of the pipe 17 may open toward the inside of the water tank 31, and an upper opening 17b of the pipe 17 may open toward the exhaust space S2. Air inside the water tank 31 enters the exhaust space S2 through the pipe 17 and is then exhausted to the outside air.

[0066] The cross section of the pipe 17 may be circular. Referring to Figure 5, the size of the pipe 17 may correspond to the width of the lowermost end of the exhaust space S2 in the second direction D2. The width of the exhaust space S2 in the second direction may be greater than or equal to the width of the inner circumferential surface of the pipe 17 in the second direction D2. For example, the width of the lowermost end of the exhaust space S2 in the second direction D2 may be equal to the inner diameter of the pipe 17.

[0067] The pipe 17 may extend downward in the exhaust space S2. The pipe 17 may extend downward in the center of the exhaust space S2 in the first direction D1. For example, the exhaust space S2 and the space inside the pipe 17 may have a T-shape.

[0068] Referring to FIG. 7, the guide 13 may include blades 18 formed on the outer circumferential surface 17c of the pipe 17. The blades 18 may extend from the outer circumferential surface 17c of the pipe 17 in a direction away from the central axis O. The blades 18 may extend to the inner circumferential surface 11a of the upper housing 11. Referring to FIGS. 7 and 11, the blades 18 may extend downward along the outer circumferential surface 17c of the pipe 17 in a manner rotating counterclockwise or clockwise. The blades 18 may include a first blade 181 extending from the lower opening C21 of the first air intake space S11 and a second blade 182 extending from the lower opening C22 of the second air intake space S12. The first blade 181 and the second blade 182 may extend downward along the outer circumferential surface 17c of the pipe 17 in a rotating manner in the same direction (counterclockwise or clockwise). The blade 18 redirects the flow of air descending through the intake space S1. As the air passes through the blade 18, it rotates along the outer circumferential surface of the water tank 31. As the air rotates and flows into the water tank 31, it comes into stronger contact with the surface of the liquid in the water tank 31, allowing contaminants contained in the air to dissolve more easily into the liquid.

[0069] The intake device (12) of the air purifier (1) of the present disclosure draws air downward toward the water tank (31) located below. The intake device (12) has a vertical (UD) intake structure as described above, thereby improving air suction performance. For example, because the central axis (O) of the fan (121) extends in the vertical (UD) direction and the blades of the fan (121) extend radially, the intake device (12) can be placed in a relatively compact space even if the size of the fan (121) is increased to improve air suction performance. This contributes to a reduction in the size of the air purifier (1) without reducing its air suction performance. In addition, the guide (13) that guides the air that has flowed into the air purifier (1) by the intake device (12) into the water tank (31) has a compact volume while providing both the intake space (S1) and the exhaust space (S2), which contributes to the miniaturization of the air purifier (1).

[0070] The air purifier (1) of the present disclosure has a vertical (UD) intake structure in which the fan (121) is disposed on the upper side of the air purifier (1), allowing the air purifier (1) to include a fan (121) that is larger than the size of the air purifier (1), thereby providing improved air suction performance. Furthermore, since the fan (121) is disposed on the upper side of the air purifier (1), the air purifier (1) of the present disclosure has structural features that are advantageous in terms of exterior design and facilitate modular design. Furthermore, these structural features are advantageous in configuring the air purifier (1) to prevent water in the water tank (31) from leaking outside the device, even when the air purifier (1) is placed in a shaky location, such as in a car.

[0071] Although the technical idea of ​​the present disclosure has been described above by way of some embodiments and examples shown in the accompanying drawings, it should be understood that various substitutions, modifications, and alterations that can be understood by those skilled in the art to which the present disclosure pertains may be made without departing from the technical idea and scope of the present disclosure, and such substitutions, modifications, and alterations should be considered to fall within the scope of the appended claims. [Explanation of symbols]

[0072] 1: Air purifier 10: Intake and exhaust module 11: Upper housing 12: Intake device 13: Guide 14: Partition 15: Upper ring 16: Outer wall 17: Pipe 18: Blade 30: Aquarium module 31: Aquarium 32: First rotating member 33: First magnetic member 50: Drive module 51: Lower housing 52: Second rotating member 53: Second magnetic member

Claims

1. an intake and exhaust module including an intake device including a fan that rotates about a vertical central axis and generates a downward air flow when rotating; a water tank module disposed below the intake / exhaust module and including a water tank for containing a liquid; and a drive module coupled to a lower portion of the water bath module and configured to rotate a liquid filled in the water bath; the intake and exhaust module is disposed between the intake device and the aquarium module, and includes an intake space configured to guide air supplied downward through the intake and exhaust module into the inside of the aquarium, and a guide configured to guide air inside the aquarium to outside air and define an exhaust space extending in a first direction perpendicular to the up-down direction; the intake space and the exhaust space are arranged to overlap each other when viewed in a second direction perpendicular to the up-down direction and the first direction, The exhaust space extends in the first direction so as to pass through the central axis, the guide includes a partition wall that defines the exhaust space; The intake space includes a first intake space and a second intake space spatially separated from each other by the partition wall. A water-based air purifier with a compact lower intake guide structure.

2. the guide includes a pipe extending in the vertical direction, the upper end of which is connected to the exhaust space, and the lower end of which has a lower opening that opens toward the inside of the water tank. An aqueous air cleaner comprising the compact air intake lower guide structure according to claim 1.

3. The width of the lowermost end of the exhaust space in the second direction is greater than or equal to the width of the inner circumferential surface of the pipe in the second direction. An aqueous air cleaner comprising the compact air intake lower guide structure according to claim 2.

4. The pipe extends downward in the exhaust space. An aqueous air cleaner comprising the compact air intake lower guide structure according to claim 2.

5. The guide includes a blade extending in a direction away from the central axis on the outer circumferential surface of the pipe. An aqueous air cleaner comprising the compact air intake lower guide structure according to claim 2.

6. The blade extends downward along the outer circumferential surface of the pipe in a counterclockwise or clockwise rotating manner. An aqueous air cleaner comprising the compact air intake lower guide structure according to claim 5.

7. The intake and exhaust module further includes an upper housing surrounding at least the guide; The upper housing includes a window that partially defines the intake space and communicates the exhaust space with outside air. An aqueous air cleaner comprising the compact air intake lower guide structure according to claim 1.

8. The area of ​​a cross section of the intake space taken along a plane perpendicular to the up-down direction becomes smaller as it goes downward. An aqueous air cleaner comprising the compact air intake lower guide structure according to claim 1.

9. The area of ​​a cross section of the exhaust space taken along a plane perpendicular to the up-down direction increases downward. An aqueous air cleaner comprising the compact air intake lower guide structure according to claim 1.

10. the partition walls include a first partition wall extending in the first direction and a second partition wall spaced apart from the first partition wall in the second direction and extending parallel to the first partition wall, At least a portion of the exhaust space is defined as a space between the first partition wall and the second partition wall. An aqueous air cleaner comprising the compact air intake lower guide structure according to claim 1.

11. a distance between the first and second partition walls in the second direction increases downward; An aqueous air cleaner comprising the compact air intake lower guide structure according to claim 10.

12. the guide includes a pair of openings that are open upward and adjacent to each other with an upper end of the partition wall as a boundary, and the first air intake space and the second air intake space extend from the pair of openings, respectively. An aqueous air cleaner comprising the compact air intake lower guide structure according to claim 1.

13. the aquarium module includes a first rotating member disposed within the aquarium to be rotatable about the central axis, the first rotating member including at least one blade extending radially from a center portion thereof, and a first magnetic member coupled thereto; the drive module includes a second rotating member disposed opposite the first rotating member and having a second magnetic member coupled thereto, and a motor configured to rotate the second rotating member about the central axis; When the second rotating member rotates, the first rotating member rotates due to a magnetic force generated between the first magnetic member and the second magnetic member. An aqueous air cleaner comprising the compact air intake lower guide structure according to claim 1.

14. The intake / exhaust module and the water tank module are detachably coupled to each other. An aqueous air cleaner comprising the compact air intake lower guide structure according to claim 1.

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