Multi-functional air cleaner
Patent Information
- Authority / Receiving Office
- KR · KR
- Patent Type
- Patents
- Current Assignee / Owner
- KONKUK UNIV IND COOP CORP
- Filing Date
- 2024-08-09
- Publication Date
- 2026-08-03
Smart Images
Figure 112024086918013-PAT00001_ABST
Abstract
Description
Technology Field
[0001] The present invention relates to an air purifier, and more specifically, to a multi-functional air purifier capable of managing indoor air quality. Background Technology
[0002] Recently, as air pollution caused by yellow dust and fine dust has intensified, the use of air conditioning systems to maintain clean indoor air is increasing.
[0003] For example, an air purifier can purify indoor air by being installed indoors and removing foreign substances contained in the air of the indoor space.
[0004] However, conventional air purifiers remove foreign substances in the form of particulate matter contained in indoor air using filters such as non-woven fabric filters or HEPA filters, so there is the inconvenience of having to replace the filters periodically. The problem to be solved
[0005] The present invention aims to solve the aforementioned problems, and the objective of the present invention is to provide a multifunctional air purifier capable of not only removing foreign substances using water vapor contained in the air but also controlling the temperature and humidity of indoor air.
[0006] The problems of the present invention are not limited to those mentioned above, and other unmentioned problems will be clearly understood by a person skilled in the art to which the present invention pertains from the description below. means of solving the problem
[0007] According to one aspect of the present invention, a multifunctional air purifier is provided comprising: a main housing; an air passage formed inside the main housing so that air from the outside can pass through after being introduced; a frost filter forming part formed in the air passage so that a frost filter made of frost can be formed in the air passage to remove foreign substances from the air introduced into the air passage; a secondary filter part disposed in the air passage so that the air passing through the frost filter forming part can be filtered; a main suction fan installed in the main housing so that external air can be introduced into the air passage and suction force can be provided to discharge the air passing through the frost filter forming part to the outside; and a control part that controls the operation of the frost filter forming part and the main suction fan.
[0008] Additionally, the above frost filter forming unit may include a box-shaped filter housing, a plurality of passages formed in the filter housing to allow air introduced from the outside through the suction force provided by the main suction fan to pass through, and a temperature control unit for cooling the filter housing to form the frost filter in each of the plurality of passages, and the frost filter may be formed by water vapor contained in the air condensing on the surface of the filter housing defining each of the plurality of passages through cooling.
[0009] In addition, the control unit can cool or heat the filter housing to a temperature below a certain temperature through the temperature control unit based on the concentration of foreign substances contained in the air introduced into the air passage from the outside and the wind speed of the air passing through the frost filter.
[0010] In addition, the multifunctional air purifier may include a first detection sensor positioned at the inlet side of the air passage to detect the condition of air entering from the outside, and a second detection sensor positioned at the outlet side of the air passage to detect the condition of air being discharged to the outside through the main intake fan.
[0011] Additionally, the filter housing may include a rim member with both sides open, a plurality of horizontal members spaced apart to cross the rim member, and a plurality of vertical members spaced apart to cross the rim member and intersect with the plurality of horizontal members, and each of the plurality of passages may be a space formed to be surrounded by at least two of the rim member, the plurality of horizontal members, and the plurality of vertical members.
[0012] In addition, the filter housing may be made of metal.
[0013] In addition, the temperature control unit may be a Peltier element.
[0014] In addition, the multifunctional air purifier may further include a pre-filter positioned at the inlet side of the air passage so that air entering from the outside can move to the frost filter forming section after foreign substances are removed.
[0015] In addition, the secondary filter unit may include at least one of a HEPA filter and an activated carbon filter.
[0016] Additionally, the air passage may include a first chamber in which the frost filter forming part is disposed, a second chamber in which the secondary filter part is disposed, and a partition plate that separates the first chamber and the second chamber, and the second chamber may include a filtration chamber in which a secondary filter part is disposed to further remove contaminants from the air that has passed through the frost filter forming part, and a bypass chamber surrounding the filtration chamber so that the air that has passed through the frost filter forming part can bypass the secondary filter part and move toward the outlet side of the air passage.
[0017] Additionally, the multifunctional air purifier may further include a flow path switching unit coupled to a placement hole formed through the partition plate, and the flow path switching unit may connect the first chamber to the filtration chamber so that air passing through the first chamber can move to the filtration chamber through the operation of the control unit, or connect the first chamber to the bypass chamber so that air passing through the first chamber can move to the bypass chamber.
[0018] Additionally, the above-mentioned Euro switching unit may include a pair of fixed plates comprising a first part positioned directly below the filtration chamber and formed such that a first sealed area and a first open area are arranged radially with respect to a virtual center point, and a second part positioned directly below the bypass chamber surrounding the first part and formed such that a second sealed area and a second open area are arranged radially with respect to the virtual center point, a rotating plate formed such that a third sealed area and a third open area are arranged radially with respect to the virtual center point, and a driving motor coupled to the rotating plate to rotate the rotating plate.
[0019] Additionally, the rotating plate can be rotated via the drive motor so that the third sealed area overlaps with the second open area, and the third open area overlaps with the first open area. In this case, air passing through the frost filter forming section can pass through the mutually overlapping first and third open areas and move to the filtration chamber.
[0020] Additionally, the rotating plate can be rotated via the drive motor so that the third sealed area overlaps with the first open area, and the third open area overlaps with the second open area. In this case, the air passing through the frost filter forming section can pass through the overlapping second and third open areas and move to the bypass chamber.
[0021] Additionally, the multifunctional air purifier may include a water collection tank formed inside the main housing so as to be located at the bottom of the air passage, and the water collection tank may be connected to the air passage through a discharge hole formed to penetrate a partition forming the bottom surface of the air passage. Through this, water falling from the frost filter forming part can move to the water collection tank through the discharge hole.
[0022] In addition, the multifunctional air purifier may include a filter member disposed on one side of the partition wall to cover the discharge opening, and water falling from the frost filter forming part may pass through the filter member and then move to the water collection tank through the discharge opening.
[0023] In addition, the multifunctional air purifier may further include a discharge pump for discharging water stored in the water collection tank to the outside.
[0024] In addition, the multifunctional air purifier may further include a heater for generating steam by heating the water stored in the water collection tank.
[0025] In addition, the multifunctional air purifier may further include a blower fan for discharging water vapor generated in the water collection tank to the outside.
[0026] In addition, the multifunctional air purifier may further include a UV lamp that generates ultraviolet rays to sterilize the water stored in the water collection tank. Effects of the invention
[0027] According to the above configuration, the multifunctional air purifier according to the present invention can easily remove foreign substances contained in the air by forming a frost filter for removing foreign substances using water vapor contained in the air.
[0028] In addition, the multifunctional air purifier according to the present invention can be permanently and repeatedly reused while maintaining the performance of removing foreign substances by forming a frost filter through cooling and melting the frost filter through heating to convert it into water.
[0029] In addition, the multifunctional air purifier according to the present invention can not only remove foreign substances using a frost filter but also control both the temperature and humidity of the indoor air, thereby maintaining a comfortable indoor air environment.
[0030] The effects of the present invention are not limited to the effects described above, and should be understood to include all effects that can be inferred from the configuration of the invention described in the detailed description or claims of the present invention. Brief explanation of the drawing
[0031] FIG. 1 is a drawing showing a multifunctional air purifier according to one embodiment of the present invention. FIG. 2 is a drawing showing the internal configuration of a multifunctional air purifier according to one embodiment of the present invention, and is a cutaway drawing of the main housing, partition wall, water collection tank, and frost filter forming part in FIG. 1. Figure 3 is a drawing of Figure 2 viewed from a different direction. Figure 4 is a schematic diagram showing the state of Figure 2 viewed from the front. FIG. 5 is a drawing showing a frost filter forming part in a multifunctional air purifier according to one embodiment of the present invention. FIG. 6 is a diagram showing the main components of a frost filter forming unit in a multifunctional air purifier according to one embodiment of the present invention. FIG. 7 is a diagram showing the flow path switching section separated in a multifunctional air purifier according to one embodiment of the present invention. FIG. 8 is a diagram showing the usage state of a flow path switching unit in a multifunctional air purifier according to one embodiment of the present invention, wherein (a) is a diagram showing the state in which the first open area is open and (b) is a diagram showing the state in which the second open area is open. Figure 9 is a diagram schematically showing the air movement path in the state where the first open area of the Euro switching section in Figure 3 is open. FIG. 10 is a schematic diagram showing the air movement path in the state where the second open area of the Euro switching section in FIG. 3 is open. Figure 11 is a schematic diagram showing the process of water falling from the frost filter forming section in Figure 3 being collected in a water collection tank. Specific details for implementing the invention
[0032] Hereinafter, embodiments of the present invention are described in detail with reference to the attached drawings so that those skilled in the art can easily implement the present invention. The present invention may be embodied in various different forms and is not limited to the embodiments described herein. To clearly explain the present invention, parts unrelated to the description in the drawings have been omitted, and the same reference numerals have been used throughout the specification for identical or similar components.
[0033] The words and terms used in this specification and claims are not limited to their ordinary or dictionary meanings, but should be interpreted in a meaning and concept consistent with the technical spirit of the invention in accordance with the principles by which the inventor defines terms and concepts to best describe his invention.
[0034] Additionally, as used in the specification and claims, the upper surface may refer to a surface viewed from the top with respect to FIG. 1, the lower surface may refer to a surface viewed from the bottom with respect to FIG. 1, and the side and side surfaces may refer to surfaces viewed from the left or right with respect to FIG. 2 to FIG. 4.
[0035] A multifunctional air purifier (100) according to one embodiment of the present invention can remove all foreign substances contained in the air, such as fine dust, as well as biological aerosols, volatile organic compounds (VOCs), odors, etc.
[0036] In addition, a multifunctional air purifier (100) according to one embodiment of the present invention provides a multifunctional air purifier capable of removing foreign substances contained in the air as well as controlling the temperature and humidity of the air.
[0037] At this time, a multifunctional air purifier (100) according to one embodiment of the present invention can remove foreign substances contained in the air by using water vapor contained in the air.
[0038] That is, a multifunctional air purifier (100) according to one embodiment of the present invention can form a filter for removing foreign substances by cooling water vapor contained in the air.
[0039] To this end, a multifunctional air purifier (100) according to one embodiment of the present invention may include a main housing (110), an air passage (AP), a frost filter forming part (130), a secondary filter part (140), a main suction fan (151), and a control part (152) as shown in FIGS. 1 to 4.
[0040] The above main housing (110) can form the overall appearance.
[0041] That is, the main housing (110) can be formed in the shape of an enclosure having an internal space.
[0042] Accordingly, the main housing (110) can accommodate various parts in the internal space.
[0043] For example, the main housing (110) may accommodate the frost filter forming part (130), secondary filter part (140), main suction fan (151), and control part (152) inside, and the air passage (AP) may be formed inside the main housing (110).
[0044] Here, the control unit (152) can control the overall operation of the multifunctional air purifier (100) according to one embodiment of the present invention. For example, the control unit (152) may be a known control box, and the control box may be housed inside the main housing (110). However, the control unit (152) is not limited thereto, and the control unit (152) may be a known MCU and may be provided to be located in an appropriate position according to design conditions.
[0045] Such a main housing (110) may include a housing body (111) in the shape of an enclosure having an internal space and a cover (112) covering the open upper part of the housing body (111), and the frost filter forming part (130), secondary filter part (140), main suction fan (151) and control part (152) may be arranged to be located in appropriate positions inside the main housing (110).
[0046] Additionally, the air passage (AP) may be formed inside the main housing (110) so that air introduced from the outside can pass through smoothly, and the main housing (110) may include an inlet (113) and an outlet (114) formed at appropriate locations so as to introduce outside air into the air passage (AP) or discharge air introduced into the air passage (AP) to the outside.
[0047] For example, the main housing (110) may include an inlet (113) formed in the housing body (111) so as to be located at a position corresponding to the inlet of the air passage (AP), and an outlet (114) formed in the cover (112) so as to be located at a position corresponding to the outlet of the air passage (AP).
[0048] In addition, the main housing (110) may include a blower opening (115) formed to be located at a position corresponding to the cooling fan (134) provided in the frost filter forming part (130) to be described later.
[0049] However, the shape and configuration of the main housing (110) are not limited to this, and the shape and configuration of the main housing (110) may be appropriately changed according to design conditions.
[0050] The above air passage (AP) can be formed inside the main housing (110) so that air introduced from the outside can pass through as described above.
[0051] That is, the air passage (AP) can be formed inside the main housing (110) so that air introduced from the outside can pass through, and the air passage (AP) can perform the role of guiding the path of air so that air introduced from the outside can pass through.
[0052] In this case, the inlet (113) may be formed to be located at a position corresponding to the inlet of the air passage (AP), and the outlet (114) may be formed to be located at a position corresponding to the outlet of the air passage (AP).
[0053] Accordingly, air introduced into the interior of the main housing (110) from the outside through the inlet (113) can travel along the air passage (AP) and then be discharged to the outside through the outlet (114).
[0054] At this time, the air passage (AP) can be formed through a partition that divides the internal space of the main housing (110) into multiple spaces.
[0055] For example, as illustrated in FIGS. 2 to 4, the partition may include a plate-shaped first partition (121) defining the bottom surface of the air passage (AP), a plate-shaped second partition (122) arranged to face each other while being spaced apart from the first partition (121) along the height direction, a ring-shaped third partition (123) extending upward at a certain height from the second partition (122), and a ring-shaped fourth partition (124) extending upward at a certain height from the upper edge of the third partition (123).
[0056] In this case, the second partition (122) may include a ring-shaped through-hole (122a) formed through the center, and the third partition (123) may be extended upward from the edge of the through-hole (122a) to a certain height.
[0057] Accordingly, the air passage (AP) can be defined as an internal space formed by the first partition (121), the second partition (122), the third partition (123), and the fourth partition (124).
[0058] Here, the space formed between the first partition (121) and the second partition (122) may serve as an inlet chamber (S1) into which air is introduced from the outside, the inner space surrounded by the third partition (123) may serve as a first chamber (S2) in which the frost filter forming part (130) is placed, and the inner space surrounded by the fourth partition (124) may serve as a second chamber (S3) in which the secondary filter part (140) is placed.
[0059] That is, the air passage (AP) can be divided into an inlet chamber (S1) into which external air is introduced, a first chamber (S2) into which the frost filter forming part (130) is placed, and a second chamber (S3) into which the secondary filter part (140) is placed.
[0060] In addition, the inlet port (113) may be formed in the main housing (110) so as to be located in a position communicating with the inlet chamber (S1), and the outlet port (114) may be formed in the main housing (110) so as to be located in a position communicating with the second chamber (S3).
[0061] Through this, air introduced from the outside into the air passage (AP) through the inlet (113) can be discharged to the outside through the outlet (114) after passing through the inlet chamber (S1), the first chamber (S2), and the second chamber (S3).
[0062] In this case, external air can pass through the air passage (AP) through the suction force provided by the main suction fan (151).
[0063] That is, the main suction fan (151) can be installed in the main housing (110) so as to be located on the side of the outlet (114).
[0064] For example, the main suction fan (151) may be positioned at the end of the second chamber (S3) and may be positioned to communicate with the second chamber (S3).
[0065] Accordingly, when the main suction fan (151) is operated to generate suction force, the suction force generated from the main suction fan (151) can be supplied to the air passage (AP).
[0066] Through this, external air can be drawn into the air passage (AP) through the inlet (113) by the suction force generated from the main suction fan (151), and the air drawn into the air passage (AP) can be discharged to the outside through the outlet (114) after passing through the first chamber (S2) and the second chamber (S3) in sequence.
[0067] That is, when suction force is generated from the main suction fan (151), external air can be introduced into the inlet chamber (S1) through the inlet port (113), and the air introduced into the inlet chamber (S1) can be discharged to the outside through the outlet port (114) after passing through the first chamber (S2) and the second chamber (S3) in sequence.
[0068] Here, a pre-filter (153) may be placed on the inlet side of the air passage (AP).
[0069] For example, the pre-filter (153) may be positioned in the inlet chamber (S1) at a location corresponding to the inlet (113).
[0070] A pre-filter (153) of this type may serve to filter out foreign substances such as hair, lint, hair, and large dust.
[0071] Accordingly, external air introduced through the inlet (113) can move to the inlet chamber (S1) after large foreign substances have been removed through the pre-filter (153).
[0072] At this time, foreign substances such as fine dust of small size can be removed from the external air introduced into the air passage (AP) as it passes through the first chamber (S2), and the foreign substances such as fine dust can be removed through a frost filter (136) formed within the air passage (AP).
[0073] That is, the above frost filter forming part (130) can form a frost filter (136) made of frost within the air passage (AP) so as to remove foreign substances from the air flowing into the air passage (AP), and the frost filter (136) may be formed by cooling water vapor contained in the air passing through the first chamber (S2).
[0074] To this end, the frost filter forming unit (130) may include a box-shaped filter housing (131), a plurality of passages (132) formed to penetrate the filter housing (131), and a temperature control unit (133) for cooling the filter housing (131).
[0075] In this case, the filter housing (131) may be positioned on the air passage (AP), and a plurality of passages (132) formed in the filter housing (131) may be positioned on the path of air passing through the air passage (AP), and the temperature control unit (133) may cool the filter housing (131) positioned on the air passage (AP).
[0076] That is, the filter housing (131) can be positioned within the first chamber (S2), the plurality of passages (132) can be positioned on the path of air passing through the first chamber (S2), and the temperature control unit (133) can cool the filter housing (131) so as to cool the air passing through the plurality of passages (132).
[0077] Accordingly, the air introduced into the first chamber (S2) can pass through the plurality of passages (132) and move toward the second chamber (S3), and the air introduced into the first chamber (S2) can be cooled while passing through the plurality of passages (132).
[0078] As a result, as shown in the enlarged view of FIG. 5, some of the water vapor contained in the air introduced into the first chamber (S2) can be cooled as it passes through the plurality of passages (132) to form a frost filter (136) made of frost.
[0079] That is, the above frost filter (136) can be formed by condensing water vapor contained in the air onto the surface of the filter housing (131) that defines each of the plurality of passages (132) through cooling.
[0080] As a specific example, the filter housing (131) may include a rim member (131a) with both sides open, a plurality of horizontal members (131b) spaced apart to cross the rim member (131a), and a plurality of vertical members (131c) spaced apart to cross the rim member (131a) and intersect with the plurality of horizontal members (131b).
[0081] In this case, each of the plurality of passages (132) may be formed as a space surrounded by at least two of the rim member (131a), the plurality of horizontal members (131b), and the plurality of vertical members (131c), and the filter housing (131) may be made of a metal material with good thermal conductivity so as to be cooled through the temperature control unit (133).
[0082] Accordingly, when the filter housing (131) is cooled through the temperature control unit (133), a frost filter (136) formed by cooling water vapor contained in the air can be formed in each of the plurality of passages (132).
[0083] Through this, foreign substances can be filtered out through the frost filter (136) as the air introduced into the first chamber (S2) passes through the plurality of passages (132).
[0084] As a result, air introduced from the outside into the air passage (AP) can move to the second chamber (S3) after foreign substances are filtered through the frost filter (136) in the first chamber (S2).
[0085] At this time, the temperature control unit (133) may be a known Peltier element, and the filter housing (131) may be cooled directly or indirectly through the Peltier element.
[0086] Accordingly, when current is supplied to the temperature control unit (133) through the control of the control unit (152), the temperature control unit (133) can cool the filter housing (131), and a frost filter (136) can be formed in each of the plurality of passages (132) to cool water vapor contained in the air and remove foreign substances.
[0087] Through this, when air introduced into the air passage (AP) passes through the first chamber (S2), foreign substances contained in the air can be filtered by adsorbing them to the frost forming the frost filter (136) while passing through the frost filter (136).
[0088] In addition, as the air passes through the frost filter (136), the condensation generated by cooling the water vapor contained in the air and the melting water generated by the melting of the frost constituting the frost filter (136) can capture odor molecules contained in the air.
[0089] As a result, a multifunctional air purifier (100) according to one embodiment of the present invention can remove not only foreign substances such as fine dust but also odors contained in the air through a frost filter (136) formed using water vapor contained in the air.
[0090] In addition, a multifunctional air purifier (100) according to one embodiment of the present invention can easily form a frost filter (136) by cooling the filter housing (131) to remove foreign substances by cooling the water vapor contained in the air.
[0091] In the drawings and description, each of the plurality of passageways (132) is depicted and described as a space formed to be surrounded by at least two of the rim member (131a), the plurality of horizontal members (131b), and the plurality of vertical members (131c), but the present invention is not limited thereto, and each of the plurality of passageways (132) may be a through hole formed through the filter housing (131) so that both ends are open.
[0092] Additionally, although the drawing shows a temperature control unit (133) for cooling the filter housing (131) in contact with the third partition (123) forming the air passage (AP), the present invention is not limited thereto, and the temperature control unit (133) may be arranged to be in direct contact with the filter housing (131).
[0093] In addition, the above frost filter forming part (130) may further include a heat dissipation part (135) and a cooling fan (134) for dissipating heat generated from the temperature control unit (133) as shown in FIGS. 5 and 6, and the air outlet (115) may be formed in the main housing (110) so as to be positioned corresponding to the cooling fan (134).
[0094] Through this, when the temperature control unit (133) cools the filter housing (131), the temperature control unit (133) can be cooled by air cooling through the heat dissipation unit (135) and the cooling fan (134).
[0095] The above secondary filter section (140) can filter the air that has passed through the above frost filter forming section (130) again.
[0096] That is, the secondary filter section (140) can additionally remove volatile organic compounds (VOCs) or odors from the air that has passed through the frost filter forming section (130).
[0097] To this end, the secondary filter unit (140) may be positioned in the second chamber (S3), and the secondary filter unit (140) may include at least one of a known HEPA filter (142) and an activated carbon filter (144).
[0098] Accordingly, air that has passed through the frost filter (136) formed in the filter housing (131) in the first chamber (S2) can move to the second chamber (S3) and then pass through the second filter section (140).
[0099] As a result, the air from which foreign substances such as fine dust have been removed while passing through the above frost filter (136) can have relatively smaller foreign substances removed or odors removed while passing through the above secondary filter section (140).
[0100] For example, the above frost filter (136) can remove particulate matter having a size of 2.5 μm or more, the above HEPA filter (142) can remove particulate matter having a size of less than 2.5 μm, and the above activated carbon filter (144) can remove volatile organic compounds (VOCs).
[0101] In addition, the pre-filter (153) can remove particulate matter having a size larger than 10㎛.
[0102] Through this, air introduced from the outside into the air passage (AP) passes sequentially through the pre-filter (153), frost filter (136), and secondary filter section (140), thereby removing foreign substances such as fine dust and ultrafine dust, as well as biological aerosols such as odor molecules and VOCs.
[0103] In addition, the air, having had foreign substances removed while passing through the pre-filter (153) and frost filter (136), moves toward the HEPA filter (142) and / or activated carbon filter (144), thereby extending the service life of the HEPA filter (142) and / or activated carbon filter (144).
[0104] At this time, the air passage (AP) may include a first chamber (S2) in which the frost filter forming part (130) is disposed as described above, and a second chamber (S3) in which the second filter part (140) is disposed, and the first chamber (S2) and the second chamber (S3) may be partitioned by a partition plate (125).
[0105] Additionally, the air passing through the first chamber (S2) may move to the outlet (114) after passing through the second filter section (140), or it may move to the outlet (114) by bypassing the second filter section (140).
[0106] To this end, the second chamber (S3) may include a filtration chamber (S31) in which the secondary filter section (140) is placed, and a bypass chamber (S32) surrounding the filtration chamber (S31).
[0107] In this case, the second chamber (S3) defined through the fourth partition (124) can be divided into the filtration chamber (S31) and the bypass chamber (S32) via a ring-shaped fifth partition (126) disposed inside the fourth partition (124), and the fifth partition (126) can be provided to have a size that is relatively smaller than that of the fourth partition (124).
[0108] For example, the fifth partition (126) may be extended upward from the partition plate (125) to a certain height so that its outer surface is spaced apart from the inner surface of the fourth partition (124) at a certain distance and is located inside the fourth partition (124).
[0109] In this case, the fourth partition (124) may be extended upward to a certain height from the edge of the partition plate (125), and the fifth partition (126) may be located in the inner area of the partition plate (125) and extended upward to a certain height from one side of the partition plate (125).
[0110] Through this, the filtration chamber (S31) may be a space surrounded by the fifth partition (126), and the bypass chamber (S32) may be a space formed between the fifth partition (126) and the fourth partition (124).
[0111] Accordingly, when air passing through the first chamber (S2) moves to the filtration chamber (S31), the air passing through the first chamber (S2) can move to the outlet side of the air passage (AP) after passing through the second filter section (140).
[0112] Additionally, when air passing through the first chamber (S2) moves to the bypass chamber (S32), the air passing through the first chamber (S2) can bypass the second filter section (140) and move to the outlet side of the air passage (AP).
[0113] Through this, when the concentration of foreign substances such as VOCs contained in the air is above a certain level, the air passing through the first chamber (S2) can move to the filtration chamber (S31), pass through the second filter section (140), and then move to the outlet side of the air passage (AP).
[0114] On the other hand, if the concentration of foreign substances such as VOCs contained in the air is below a certain level, the air passing through the first chamber (S2) can bypass the second filter section (140) and move to the outlet side of the air passage (AP) through the bypass chamber (S32).
[0115] As a result, the multifunctional air purifier (100) according to one embodiment of the present invention can extend the lifespan of the secondary filter unit (140) by allowing air to selectively pass through the secondary filter unit (140) depending on the concentration of foreign substances, such as VOCs, contained in the air.
[0116] At this time, in a multifunctional air purifier (100) according to one embodiment of the present invention, the path of air passing through the first chamber (S2) can be determined through a flow path switching unit (160), and the flow path switching unit (160) can be driven through the control of a control unit (152).
[0117] That is, when the concentration of foreign substances such as VOCs contained in the air is below a certain level, the control unit (152) can connect the first chamber (S2) and the filtration chamber (S31) through the flow path switching unit (160).
[0118] Accordingly, the air that has passed through the first chamber (S2) can move to the filtration chamber (S31), pass through the second filter section (140), and then move to the outlet side of the air passage (AP).
[0119] Conversely, if the concentration of foreign substances such as VOCs contained in the air exceeds a certain level, the control unit (152) can connect the first chamber (S2) and the bypass chamber (S32) through the flow path switching unit (160).
[0120] Accordingly, the air passing through the first chamber (S2) can move to the bypass chamber (S32) and move directly to the outlet side of the air passage (AP) without passing through the second filter section (140).
[0121] To this end, the Euro switching unit (160) can be coupled to a placement hole (125a) formed through the partition plate (125), and the Euro switching unit (160) can be driven by the driving of the control unit (152).
[0122] For example, the Euro switching unit (160) may include a pair of fixed plates (161) as shown in FIG. 7, a rotating plate (162) positioned between the pair of fixed plates (161), and a driving motor (163) coupled to the rotating plate (162).
[0123] Specifically, each of the pair of fixed plates (161) may include a first portion (161a) comprising a central area and a second portion (161b) formed to surround the first portion (161a).
[0124] In this case, as illustrated in FIGS. 2 and 3, the first part (161a) may be provided to have a cross-sectional area approximately equal to that of the filtration chamber (S31), may be positioned directly below the filtration chamber (S31), and may be formed such that a plurality of first closed areas (161aa) and a plurality of first open areas (161ab) are arranged radially with respect to a virtual center point.
[0125] That is, the plurality of first closed regions (161aa) and the plurality of first open regions (161ab) can be formed to be arranged alternately while radially arranged with respect to a virtual center point.
[0126] Additionally, the second part (161b) may be positioned to surround the first part (161a) and be located directly below the bypass chamber (S32), and may be formed such that a plurality of second sealed areas (161ba) and a plurality of second open areas (161bb) are arranged radially with respect to a virtual center point.
[0127] That is, the plurality of second closed regions (161ba) and the plurality of second open regions (161bb) can be formed to be arranged alternately while radially arranged with respect to a virtual center point.
[0128] In addition, the plurality of first closed areas (161aa) and the plurality of second open areas (161bb) may be arranged to be located in a straight line along the radial direction with respect to a virtual center point, and the plurality of first open areas (161ab) and the plurality of second closed areas (161ba) may be arranged to be located in a straight line along the radial direction with respect to a virtual center point.
[0129] In this case, the upper fixed plate (161) and the lower fixed plate (161) may be positioned so that the first sealed area (161aa), the first open area (161ab), the second sealed area (161ba), and the second open area (161bb) overlap each other.
[0130] Additionally, the rotating plate (162) may be formed into a plate having a predetermined area and may be rotatably positioned between the pair of fixed plates (161), and the driving motor (163) may be coupled to the rotating plate (162).
[0131] Accordingly, the rotating plate (162) can be rotated between the pair of fixed plates (161) through the driving force provided by the driving motor (163), and the driving of the driving motor (163) can be controlled through the control unit (152).
[0132] At this time, the rotating plate (162) may be formed such that a plurality of third closed areas (162a) and a plurality of third open areas (162b) are arranged radially with respect to a virtual center point.
[0133] In such a case, each of the plurality of third open areas (162b) may include a third-1 open area (162ba) formed at a position corresponding to the first part (161a) and a third-2 open area (162bb) formed at a position corresponding to the second part (161b), and the third-1 open area (162ba) and the third-2 open area (162bb) may be arranged to be located in a straight line along the radial direction with respect to a virtual center point.
[0134] In addition, the third sealed area (162a) may be provided to have an area that covers both a part of the first part (161a) and a part of the second part (161b) along the radial direction based on a virtual center point.
[0135] Accordingly, as illustrated in FIG. 8(a), when the rotating plate (162) is rotated by the drive motor (163) so that the third closed area (162a) of the rotating plate (162) overlaps with the second open area (161bb) of the fixed plate (161) and the third-1 open area (162ba) of the rotating plate (162) overlaps with the first open area (161ab) of the fixed plate (161), the first open area (161ab) and the third-1 open area (162ba) can overlap each other in the first part (161a).
[0136] In this case, the second sealed area (161ba) in the second part (161b) may be arranged to overlap with the third-second open area (162bb).
[0137] Through this, the first chamber (S2) can be connected to the filtration chamber (S31) through the first open area (161ab) and the third-first open area (162ba) that overlap each other in the first part (161a), and the movement of air through the second part (161b) can be blocked.
[0138] As a result, as shown in FIG. 9, the air in the first chamber (S2) can move to the filtration chamber (S31) by passing through the first open area (161ab) and the third open area (162b) that overlap each other in the flow path switching section (160).
[0139] On the other hand, as illustrated in FIG. 8(b), when the rotating plate (162) is rotated by the drive motor (163) such that the third closed area (162a) of the rotating plate (162) overlaps with the first open area (161ab) of the fixed plate (161), and the third-second open area (162bb) of the rotating plate (162) overlaps with the second open area (161bb) of the fixed plate (161), the second open area (161bb) and the third-second open area (162bb) can overlap each other in the second part (161b).
[0140] In this case, the first sealed area (161aa) in the first part (161a) may be arranged to overlap with the third-1 open area (162ba).
[0141] Through this, the first chamber (S2) can be connected to the bypass chamber (S32) through the second open area (161bb) and the third-second open area (162bb) that overlap each other in the second part (161b), and the movement of air through the first part (161a) can be blocked.
[0142] As a result, as illustrated in FIG. 10, the air in the first chamber (S2) can move to the bypass chamber (S32) by passing through the second open area (161bb) and the third-second open area (162bb) that overlap each other in the flow path switching section (160).
[0143] In this way, the multifunctional air purifier (100) according to one embodiment of the present invention can extend the lifespan of the secondary filter unit (140) by allowing the air that has passed through the first chamber (S2) through the flow path switching unit (160) to selectively pass through the secondary filter unit (140).
[0144] In the drawings and description, the above-mentioned Euro-conversion part (160) is shown and described as being provided separately from the partition plate (125) and coupled to the placement hole (125a) of the partition plate (125), but the present invention is not limited thereto, and the above-mentioned Euro-conversion part (160) may be formed integrally with the partition plate (125).
[0145] At this time, in a multifunctional air purifier (100) according to one embodiment of the present invention, the control unit (152) can cool or heat the filter housing (131) to a temperature below a certain temperature.
[0146] For example, the control unit (152) can cool or heat the filter housing (131) to a temperature below a certain temperature by controlling the temperature of the temperature control unit (133) based on the concentration of foreign substances contained in the air introduced into the air passage (AP) from the outside and the wind speed of the air passing through the frost filter (136).
[0147] That is, if the concentration of foreign substances contained in the air introduced into the inlet chamber (S1) of the air passage (AP) is above a certain concentration and the wind speed of the air passing through the frost filter (136) is above a certain speed, the control unit (152) can drive the frost filter forming unit (130) into a foreign substance removal mode so as to remove foreign substances through the frost filter (136).
[0148] For example, the control unit (152) can form a frost filter (136) to remove foreign substances from the passage (132) of the filter housing (131) by cooling the filter housing (131) through the temperature control unit (133), and the control unit (152) can maintain the frost filter (136) formed in the passage (132) by maintaining the filter housing (131) at a temperature below a certain temperature.
[0149] Accordingly, the frost filter (136) formed in the filter housing (131) can remove foreign substances from the air introduced from the inlet chamber (S1).
[0150] In addition, the air introduced into the inlet chamber (S1) of the air passage (AP) can be cooled by the air cooled by the temperature control unit (133) or by heat exchange with the filter housing (131) while passing through the passage (132) of the filter housing (131).
[0151] Accordingly, the multifunctional air purifier (100) according to one embodiment of the present invention can cool the air introduced into the inlet chamber (S1) of the air passage (AP) and then discharge it to the outside through the outlet (114), thereby enabling not only an air purification function through the removal of foreign substances but also an air conditioning function through the cooling of the air.
[0152] On the other hand, if the concentration of foreign substances contained in the air introduced into the inlet chamber (S1) of the air passage (AP) is less than a certain concentration, the control unit (152) can drive the frost filter forming unit (130) in an air passage mode so as not to maintain the frost filter (136).
[0153] For example, the control unit (152) can stop the operation of the temperature control unit (133).
[0154] Accordingly, the frost filter (136) formed in the filter housing (131) may melt over time and change into melted water, and the air introduced from the inlet chamber (S1) may move to the second chamber (S3) without foreign substances being removed by the frost filter (136).
[0155] Alternatively, if the concentration of foreign substances contained in the air introduced into the inlet chamber (S1) of the air passage (AP) is above a certain concentration and the wind speed of the air passing through the frost filter (136) is below a certain speed, the control unit (152) may determine that the foreign substances adsorbed on the frost filter (136) are in a saturated state, and the control unit (152) may drive the frost filter forming unit (130) in a heating mode so that the frost filter (136) can be removed.
[0156] For example, the control unit (152) can heat the filter housing (131) through the temperature control unit (133) by supplying the current supplied to the temperature control unit (133) in the reverse direction.
[0157] Accordingly, as illustrated in FIG. 11, part or all of the frost filter (136) formed in the filter housing (131) can be removed, and foreign substances adsorbed through the frost filter (136) can fall downward together with the melted water formed by the melting of the frost constituting the frost filter (136).
[0158] Then, if the concentration of foreign substances contained in the air introduced into the inlet chamber (S1) of the air passage (AP) is above a certain concentration and the wind speed of the air passing through the frost filter (136) is above a certain speed, the control unit (152) can switch the frost filter forming unit (130) back to the foreign substance removal mode.
[0159] That is, the control unit (152) can cool the filter housing (131) through the temperature control unit (133) to form a frost filter (136) for removing foreign substances from the passage (132) of the filter housing (131), and the frost filter (136) formed in the filter housing (131) can remove foreign substances from the air introduced from the inlet chamber (S1).
[0160] Through this, a multifunctional air purifier (100) according to one embodiment of the present invention can easily form a frost filter (136) for removing foreign substances by cooling the filter housing (131) through the temperature control unit (133), or can melt the saturated frost filter (136) and convert it into water by heating the filter housing (131) through the temperature control unit (133), thereby enabling permanent and repeated reuse while maintaining the foreign substance removal performance.
[0161] To this end, a multifunctional air purifier (100) according to one embodiment of the present invention may include a first detection sensor (171) positioned at the inlet side of the air passage to detect the condition of air entering from the outside, and a second detection sensor (172) positioned at the outlet side of the air passage (AP) to detect the condition of air being discharged to the outside through the main intake fan (151).
[0162] For example, the first detection sensor (171) may be positioned on the side of the inlet chamber (S1), and the first detection sensor (171) may be an air quality sensor capable of measuring the degree of air pollution.
[0163] Additionally, the second detection sensor (172) may be positioned at the outlet side of the air passage (AP), and the second detection sensor (172) may be an air quality and wind speed sensor capable of measuring the air wind speed along with the air pollution level.
[0164] Here, the air pollution level may be information including the concentration of fine dust, the concentration of volatile organic compounds, the concentration of carbon dioxide, etc.
[0165] Accordingly, the control unit (152) can control the operation of the temperature control unit (133) based on information measured through the first detection sensor (171) and the second detection sensor (172).
[0166] In addition, the control unit (152) can control the operation of the above-described Euro switching unit (160) based on information measured from the first detection sensor (171).
[0167] For example, as described above, if the concentration of foreign substances such as VOCs measured by the first detection sensor (171) is below a certain level, the control unit (152) can connect the first chamber (S2) and the filtration chamber (S31) through the flow path switching unit (160), and if the concentration of foreign substances such as VOCs measured by the first detection sensor (171) is above a certain level, the control unit (152) can connect the first chamber (S2) and the bypass chamber (S32) through the flow path switching unit (160).
[0168] Meanwhile, a multifunctional air purifier (100) according to one embodiment of the present invention may further include a water collection tank (180) formed inside the main housing (110) so as to be located at the lower part of the air passage (AP).
[0169] Such a water collection tank (180) can store a certain amount of water falling from the frost filter forming part (130).
[0170] For example, melted water formed by the melting of the frost filter (136) can fall into and be stored in the above water collection tank (180).
[0171] Here, the above-mentioned melting water may be formed when foreign substances contained in the air are adsorbed during the process of passing through the above-mentioned frost filter (136) and the frost constituting the frost filter is melted, or it may be formed when the frost constituting the above-mentioned frost filter (136) is melted when the above-mentioned frost filter forming unit (130) is driven in a heating mode by the above-mentioned control unit (152).
[0172] To this end, the water collection tank (180) may be positioned inside the main housing (110) so as to be located below the first partition (121) constituting the inlet chamber (S1) of the air passage (AP), and the water collection tank (180) may be connected to the inlet chamber (S1) through a discharge hole (121a) formed through the first partition (121).
[0173] In addition, the discharge port (121a) may be formed in the first partition (121) so as to be located directly below the first chamber (S2) where the filter housing (131) is disposed, while communicating with the inlet chamber (S1).
[0174] Accordingly, water falling from the filter housing (131) placed in the first chamber (S2) can fall into the inlet chamber (S1) and can move to the water collection tank (180) through the discharge hole (121a) of the first partition (121) forming the bottom surface of the inlet chamber (S1).
[0175] As a result, a certain amount of water falling from the filter housing (131) can be stored in the water collection tank (180).
[0176] In such a case, the first partition (121) may further include a ring-shaped barrier (121b) that protrudes a certain height from one side of the first partition (121) while surrounding the discharge hole (121a).
[0177] In addition, the first partition (121) may further include an inclined portion (121c) formed such that one side slopes downward as it goes from the barrier (121b) to the discharge hole (121a).
[0178] Accordingly, a collection space defined by the inclined portion (121c) and the barrier (121b) centered on the discharge hole (121a) may be formed on one side of the first partition (121), and the collection space may be formed in the shape of a convex groove downward centered on the discharge hole (121a).
[0179] As a result, water falling from the filter housing (131) can fall into the collection space and then move smoothly to the collection tank (180) through the discharge port (121a).
[0180] In this case, a filter member (181) may be arranged on one side of the first partition (121) to cover the discharge hole (121a).
[0181] Accordingly, water falling from the filter housing (131) can pass through the filter member (181) and then move to the collection tank (180) through the discharge hole (121a).
[0182] As a result, even if the water falling from the filter housing (131) contains foreign substances adsorbed from the air, the water stored in the collection tank (180) may be in a state where foreign substances have been removed.
[0183] At this time, a multifunctional air purifier (100) according to one embodiment of the present invention may include a discharge pump (191) for discharging water stored in the water collection tank (180) to the outside.
[0184] In addition, a multifunctional air purifier (100) according to one embodiment of the present invention may further include a water level sensor (182) installed in the water collection tank (180) to detect the water level of the water stored in the water collection tank (180).
[0185] In such a case, the control unit (152) can control the operation of the discharge pump (191) based on the water level information measured through the water level sensor (182).
[0186] That is, when the measured water level of the water stored in the water collection tank (180) through the water level sensor (182) exceeds a set range, the control unit (152) can drive the discharge pump (191).
[0187] As a result, even if water falling from the filter housing (131) continuously flows into the water collection tank (180) through the discharge port (121a), the control unit (152) can drive the discharge pump (191) to control the amount of water stored in the water collection tank (180) to a certain amount or less.
[0188] Meanwhile, a multifunctional air purifier (100) according to one embodiment of the present invention can implement a humidification function capable of controlling the temperature and humidity of indoor air.
[0189] This humidification function can be performed using water stored in the above water collection tank (180).
[0190] To this end, a multifunctional air purifier (100) according to one embodiment of the present invention may further include a heater (192) disposed in the water collection tank (180) to heat the water stored in the water collection tank (180) to generate steam, and a blower fan (193) for discharging the steam generated in the water collection tank (180) to the outside.
[0191] That is, the water stored in the above water collection tank (180) can be heated through the heater (192) and converted into steam, and the steam generated in the above water collection tank (180) can be discharged to the outside through the blower fan (193).
[0192] In this case, as shown in FIGS. 2 and 3, the blower fan (193) may be installed in the main housing (110) so as to be in communication with the water collection tank (180), and a third detection sensor (195) may be positioned on the side of the water collection tank (180) so as to be located close to the blower fan (193).
[0193] Here, the third detection sensor (195) can detect the humidity of the water vapor discharged to the outside through the blower fan (193).
[0194] Through this, the control unit (152) can control the state of the steam discharged to the outside through the blower fan (193) by controlling the rotational speed of the blower fan (193) and the temperature of the heater (192) based on the information obtained through the third detection sensor (195).
[0195] Meanwhile, a multifunctional air purifier (100) according to one embodiment of the present invention may further include a UV lamp (194) that generates ultraviolet rays to sterilize the water stored in the water collection tank (180).
[0196] Such a UV lamp (194) can sterilize microorganisms in the water stored in the water collection tank (180).
[0197] Accordingly, the steam generated through the heater (192) may be in a state where bacteria, such as microorganisms, have been removed, and clean steam may be discharged to the outside through the blower fan (193).
[0198] Although embodiments of the present invention have been described, the spirit of the present invention is not limited by the embodiments presented in this specification. Those skilled in the art who understand the spirit of the present invention may easily propose other embodiments within the scope of the same spirit by adding, changing, deleting, or adding components, and such are also to be considered to fall within the scope of the spirit of the present invention. Explanation of the symbols
[0199] 100 : Multifunctional Air Purifier 110 : Main Housing 111 : Housing body 112 : Cover 113: Inlet 114: Outlet 115 : Air vent AP : Air passage S1: Inlet Chamber S2: First Chamber S3: Second Chamber S31: Filtration Chamber S32 : Bypass Chamber 121 : First Partition 121a : Exhaust hole 121b : Speed bump 121c : Inclined section 122 : Second bulkhead 122a: Penetration 123: Third bulkhead 124 : 4th bulkhead 125 : Partition plate 125a : Placement hole 126 : 5th bulkhead 130 : Frost filter forming part 131 : Filter housing 131a : Border member 131b : Horizontal member 131c : Vertical member 132 : Passage 133 : Temperature control unit 134 : Cooling fan 135 : Heat dissipation part 136 : Frost filter 140: Secondary filter section 142: HEPA filter 144 : Activated carbon filter 151 : Main intake fan 152 : Control unit 153 : Pre-filter 160: Euro conversion section 161: Fixed plate 161a: Part 1 161aa: First sealed area 161ab : First open area 161b :: Second part 161ba: Second sealed area 161bb: Second open area 162: Turntable 162a: Third sealed area 162b : Third open area 163 : Drive motor 171: First detection sensor 172: Second detection sensor 180 : Collector 181 : Filter component 182 : Water level sensor 191 : Discharge pump 192 : Heater 193 : Blower fan 194 : UV lamp 195 : Third detection sensor
Claims
Claim 1 Main housing; an air passage formed inside the main housing to allow air to pass through after being introduced from the outside; a frost filter forming part that forms a frost filter made of frost inside the air passage to remove foreign substances from the air introduced into the air passage; a secondary filter part disposed inside the air passage to filter the air that has passed through the frost filter forming part; and a main suction fan installed in the main housing to provide suction power to introduce external air into the air passage and discharge the air that has passed through the frost filter forming part to the outside. A multi-functional air purifier comprising: a control unit that controls the operation of the above-mentioned frost filter forming unit and the main intake fan; wherein the frost filter forming unit comprises a box-shaped filter housing, a plurality of passages formed in the filter housing to allow air introduced from the outside through the suction force provided by the main intake fan to pass through, and a temperature control unit for cooling the filter housing to form the frost filter in each of the plurality of passages, wherein the frost filter is formed by water vapor contained in the air condensing on the surface of the filter housing that defines each of the plurality of passages through cooling, and the control unit cools or heats the filter housing to a temperature below a certain temperature through the temperature control unit based on the concentration of foreign substances contained in the air introduced from the outside into the air passages and the wind speed of the air that has passed through the frost filter. Claim 2 delete Claim 3 delete Claim 4 In claim 1, the multi-functional air purifier comprises a first detection sensor positioned at the inlet side of the air passage to detect the pollution level of air entering from the outside, and a second detection sensor positioned at the outlet side of the air passage to detect the pollution level and wind speed of air discharged to the outside through the main intake fan. Claim 5 A multifunctional air purifier according to claim 1, wherein the filter housing comprises a rim member with both sides open, a plurality of horizontal members spaced apart to cross the rim member, and a plurality of vertical members spaced apart to cross the rim member and intersect the plurality of horizontal members, and each of the plurality of passages is a space formed to be surrounded by at least two of the rim member, the plurality of horizontal members, and the plurality of vertical members. Claim 6 In claim 1, the filter housing is a multi-functional air purifier made of metal. Claim 7 In claim 1, the temperature control unit is a multifunctional air purifier that is a Peltier element. Claim 8 In claim 1, the multifunctional air purifier further comprises a pre-filter positioned at the inlet side of the air passage so that air introduced from the outside can move to the frost filter forming part after foreign substances are removed. Claim 9 In claim 1, the secondary filter unit comprises at least one of a HEPA filter and an activated carbon filter, forming a multifunctional air purifier. Claim 10 A multi-functional air purifier according to claim 1, wherein the air passage comprises a first chamber in which the frost filter forming part is disposed, a second chamber in which the secondary filter part is disposed, and a partition plate separating the first chamber and the second chamber, and the second chamber comprises a filtration chamber in which a secondary filter part is disposed to further remove contaminants from the air passing through the frost filter forming part, and a bypass chamber surrounding the filtration chamber so that the air passing through the frost filter forming part can bypass the secondary filter part and move toward the outlet side of the air passage. Claim 11 In claim 10, the multifunctional air purifier further comprises a flow path switching unit coupled to a placement hole formed through the partition plate, wherein the flow path switching unit connects the first chamber to the filtration chamber so that air passing through the first chamber can move to the filtration chamber through the operation of the control unit, or connects the first chamber to the bypass chamber so that air passing through the first chamber can move to the bypass chamber. Claim 12 In claim 11, the above-mentioned Euro-switching section comprises a pair of fixed plates including a first part positioned directly below the filtration chamber and formed such that a first sealed area and a first open area are radially arranged with respect to a virtual center point, and a second part positioned directly below the bypass chamber surrounding the first part and formed such that a second sealed area and a second open area are radially arranged with respect to the virtual center point, a rotating plate rotatably positioned between the pair of fixed plates and formed such that a third sealed area and a third open area are radially arranged with respect to the virtual center point, and a driving motor coupled to the rotating plate to rotate the rotating plate. Claim 13 In claim 12, the rotating plate is rotated by the driving motor so that the third closed area is positioned to overlap with the second open area and the third open area is positioned to overlap with the first open area, and the air passing through the frost filter forming part passes through the first open area and the third open area that overlap each other and moves to the filtration chamber, a multi-functional air purifier. Claim 14 In claim 12, the rotating plate is rotated by the driving motor so that the third closed area is positioned to overlap with the first open area and the third open area is positioned to overlap with the second open area, and the air passing through the frost filter forming part passes through the second open area and the third open area that overlap each other and moves to the bypass chamber, a multi-functional air purifier. Claim 15 In claim 1, the multi-functional air purifier comprises a water collection tank formed inside the main housing so as to be located at the lower part of the air passage, and the water collection tank communicates with the air passage through a discharge hole formed to penetrate a partition forming the bottom surface of the air passage, and water falling from the frost filter forming part moves to the water collection tank through the discharge hole. Claim 16 In claim 15, the multifunctional air purifier comprises a filter member disposed on one side of the partition wall to cover the discharge opening, and water falling from the frost filter forming part passes through the filter member and then moves to the water collection tank through the discharge opening. Claim 17 In item 15, the multifunctional air purifier further comprises a discharge pump for discharging water stored in the water collection tank to the outside. Claim 18 In claim 15, the multifunctional air purifier further comprises a heater for heating water stored in the water collection tank to generate steam. Claim 19 In claim 18, the multifunctional air purifier further comprises a blower fan for discharging water vapor generated in the water collection tank to the outside. Claim 20 In claim 15, the multifunctional air purifier further comprises a UV lamp that generates ultraviolet rays to sterilize the water stored in the water collection tank.