Air purifier

Abstract

Disclosed is an air cleaner that can further improve the cleaning convenience of a filter module, including: a filter module that is detachably coupled to a housing, wherein the filter module includes a cleaning unit configured to be relatively rotatable with respect to a filter screen in a state in which at least a portion thereof is in contact with the filter screen, and the cleaning unit is detachably coupled to a motor provided in the housing when the filter module is coupled to the housing.

Description

TECHNICAL FIELD

[0001] The present application relates to an air cleaner, and more particularly, to an air cleaner that can further improve the cleaning convenience of a filter module. BACKGROUND

[0002] An air cleaner refers to a device that purifies polluted air into fresh air. Air that enters the air cleaner can pass through a filter to remove dust, impurities, etc. in the air.

[0003] In general, a filter provided in an air cleaner filters foreign matter having a predetermined size or more floating in the air. Therefore, as the operation time of the air cleaner elapses, foreign matter can be attached to the surface of the filter.

[0004] Foreign matter attached to the surface of the filter can increase the load of the air cleaner and can reduce the air purification efficiency. Therefore, in order to continuously use the filter, the filter surface needs to be cleaned periodically.

[0005] In a conventional air cleaner, a user needs to separate the filter from the housing and manually remove foreign matter attached to the surface of the filter. That is, in the process of cleaning the filter, a cumbersome manual operation involving the user is required.

[0006] Therefore, it can be considered to develop an air cleaner that is easy to clean and manage the filter.

[0007] Korean Patent Publication No. 10-2021-0154284 discloses a ventilation type air cleaner and a method for operating the same. Specifically, a ventilation type air cleaner is disclosed, which includes a filter member detachably provided at one side of an outdoor air inlet.

[0008] However, this type of air cleaner only discloses a structure for a replaceable filter member, and does not disclose a structure for managing the continuous use and recycling of the filter member.

[0009] Korean Registered Patent Gazette No. 10-2100075 discloses a ventilation system for managing a filter and preventing a decrease in air volume. Specifically, a ventilation system is disclosed that is managed according to the replacement, cleaning time of the filter, and corrects the air volume of the ventilation system according to the aging of the filter.

[0010] However, this type of ventilation system only determines the cleaning time of the filter, and the separation and cleaning of the filter should still be performed manually by the user.

[0011] Prior Art Document 1 Korean Patent Publication No. 10-2021-0154284 (2021.12.21.)

[0012] Prior Art Document 2 Korean Patent Laid-Open Publication No. 10-2100075 (2020.04.13.) SUMMARY

[0013] Problems to be Solved

[0014] An object of the present application is to provide an air cleaner that can further improve cleaning convenience of a filter module.

[0015] Another object of the present application is to provide an air cleaner that facilitates maintenance of a cleaning unit provided to a filter module.

[0016] Another object of the present application is to provide an air cleaner that can make disassembly and assembly of a filter module and a housing more convenient.

[0017] Solution to Problem

[0018] To achieve the above object, an air cleaner according to an aspect of the present application includes a housing formed with an inlet and an outlet of air, and a filter module provided at one side of the inlet and filtering air flowing to the inlet, wherein the filter module includes a disassembly unit having a filter screen in a portion thereof and being detachably coupled to the housing, and a cleaning unit configured to be relatively rotatable with respect to the filter screen in a state in which at least a portion thereof is in contact with the filter screen, the cleaning unit being detachably coupled to a motor provided in the housing when the disassembly unit is coupled to the housing.

[0019] And, when the disassembly unit is disassembled with respect to the housing, the disassembly unit moves in a first direction, and when the cleaning unit is disassembled with respect to the motor, the cleaning unit moves in a second direction different from the first direction.

[0020] And, the housing includes a tight-coupling unit that moves the disassembly unit in a direction toward the motor when the disassembly unit is coupled to the housing.

[0021] And, the tight-coupling unit includes a pressurizing plate that is in surface contact with the disassembly unit when the disassembly unit is disassembled with respect to the housing, and an elastic member that provides an elastic force so that the pressurizing plate moves in a direction toward the motor.

[0022] And, the pressurizing plate includes a cylindrical portion formed to extend from one surface of the pressurizing plate in a direction away from the motor, and the elastic member is a spring provided to surround an outer circumference of the cylindrical portion.

[0023] And, the cleaning unit includes a cleaning rod which is detachably coupled to the filter net and can rotate in connection with the motor, and a brush which is coupled to a side of the cleaning rod facing the filter net, rotates together with the cleaning rod when the cleaning rod rotates, and can relatively rotate with respect to the filter net in a state in which at least a part thereof is in contact with the filter net.

[0024] And, the brush is detachably coupled to the cleaning rod in a sliding manner.

[0025] And, the cleaning unit includes a fixing member which is coupled to the cleaning rod with the filter net interposed therebetween.

[0026] And, the cleaning rod includes a plurality of wing portions which extend radially outward from a rotation shaft.

[0027] And, the detachable unit includes a dust tray which is located at a lower side of the cleaning unit and forms an inner space for collecting dust separated from the filter net.

[0028] And, the dust tray extends toward a lower side of the filter net and is formed in one body with the filter net.

[0029] And, the dust tray is detachably coupled to a lower side of the filter net.

[0030] And, the cleaning unit includes a motor connection shaft for inserting and coupling a rotation shaft of the motor, which rotates together with the rotation shaft when the rotation shaft rotates.

[0031] Effects of the Invention

[0032] Among various effects of the present invention, an effect obtainable by the above-described solution is as follows.

[0033] First, the air cleaner includes a housing and a filter module which is detachably coupled with respect to the housing. The filter module includes a cleaning unit which is configured to relatively rotate with respect to the filter net in a state in which at least a part thereof is in contact with the filter net.

[0034] Accordingly, dust attached to a surface of the filter net can be automatically removed from the filter net by the cleaning unit. At this time, dust separated from the filter net is moved into an inner space of a dust tray located at a lower side of the filter net. Thus, a user can perform cleaning of the filter module only by an operation of removing dust collected in the dust tray. Accordingly, cleaning convenience of the filter module can be further improved, and a clean state of the filter module can be maintained even in a normal state.

[0035] And, the cleaning unit includes a cleaning rod rotatable in connection with the motor, and a brush rotatable relative to the filter screen in a state in which the brush is in contact with the filter screen. Also, the brush is detachably coupled to the cleaning rod in a sliding manner.

[0036] Accordingly, the brush can be easily separated from the cleaning rod and cleaned. This facilitates maintenance of the cleaning unit including the brush.

[0037] And, the filter module includes a detachment unit detachably coupled to the housing. When the detachment unit is detached from the housing, the detachment unit is moved in a first direction, and when the detachment unit is coupled to the housing, the pressurizing plate of the housing moves the detachment unit in a direction toward the motor different from the first direction.

[0038] Accordingly, the cleaning unit of the filter module can also be detached from the motor with a small force by the pressurizing plate. Thus, detachment of the filter module from the housing can be facilitated. Also, when the filter module is coupled to the housing, any detachment of the filter module can be prevented. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 is a perspective view illustrating an air cleaner according to an embodiment of the present application.

[0040] Figure 2 is a bottom view illustrating the air cleaner of Figure 1 .

[0041] Figure 3 is a plan cross-sectional view illustrating the air cleaner of Figure 1 .

[0042] Figure 4 is a perspective view illustrating a filter mounting portion, a sealing unit, and a filter module of the air cleaner of Figure 1 .

[0043] Figure 5 are perspective views illustrating the filter mounting portion, the sealing unit, and the filter module of Figure 4 from different directions.

[0044] Figure 6 is an exploded perspective view illustrating a filter mounting portion, a motor, a sealing unit, and a filter module of the air cleaner of Figure 1 .

[0045] Figure 7 is a perspective view illustrating a cleaning unit of the filter module of Figure 6 .

[0046] Figure 8 is a perspective view illustratingFigure 7 A disassembled perspective view of a cleaning unit.

[0047] Figure 9 is a side sectional view illustrating a disassembly process of a filter module and a housing according to an embodiment of the present application.

[0048] Figure 10 is a rear view illustrating a cleaning process of a filter module according to an embodiment of the present application. DETAILED DESCRIPTION

[0049] Hereinafter, an air cleaner 1 according to an embodiment of the present application will be described in greater detail with reference to the accompanying drawings.

[0050] In the following description, explanation of some constituent elements can be omitted in order to clarify the features of the present application.

[0051] In describing the present application, the same reference numerals are used throughout the drawings to refer to the same constituent configuration, and repeated description of the same constituent configuration will be omitted for convenience of understanding.

[0052] The accompanying drawings are included to provide a further understanding of the spirit of the present application and the disclosed embodiments, and are not intended to limit the present application.

[0053] The singular expression used in the specification includes the plural expression unless the context clearly indicates a different meaning.

[0054] The terms "upper side", "lower side", "left side", "right side", "front side", and "rear side" used in the following description can be understood with reference to the coordinate system shown in Figure 1 , Figure 2 and Figure 5 .

[0055] Hereinafter, an air cleaner 1 according to an embodiment of the present application will be described with reference to Figures 1 to 3 .

[0056] The air cleaner 1 purifies contaminated air into fresh air. Specifically, the air cleaner 1 sucks contaminated air into the inside, and then purifies it to discharge fresh air to the outside.

[0057] The air cleaner 1 removes dust, impurities, etc. in the air passing through the air cleaner 1. In one embodiment, the air cleaner 1 can filter foreign matter having a predetermined size or more among foreign matter in the air. In another embodiment, the air cleaner 1 can adsorb and remove specific substances contained in the air.

[0058] In addition, the air cleaner 1 can simultaneously perform an air purification function and a ventilation function through forced circulation between the inside air and the outside air.

[0059] In the illustrated embodiment, the air cleaner 1 includes a case 10, a heat exchange portion 20, a guide portion 30, a fan portion 40, and a filter module 50.

[0060] The case 10 forms an appearance of the air cleaner 1.

[0061] A space in which the outside air and the inside air can flow is formed inside the case 10. Accordingly, the outside air and the inside air flowing into the inside of the case 10 can be discharged to the outside of the case 10 after circulating the space.

[0062] The case 10 can be formed of a high-strength material. For example, the case 10 can be formed of a metal material.

[0063] In the illustrated embodiment, the case 10 includes an inlet port 110, a discharge port 120, a filter mounting portion 130, a motor 140, and a sealing unit 150.

[0064] The inlet port 110 serves as an inlet path of air flowing to the inside of the case 10.

[0065] The inlet port 110 is provided at one side of the case 10 and communicates the inside space and the outside space of the case 10.

[0066] The inlet port 110 includes an inside air inlet port 111 and an outside air inlet port 112. The inside air inlet port 111 and the outside air inlet port 112 serve as inlet paths of the inside air and the outside air, respectively, flowing to the inside of the case 10.

[0067] Also, the inside air inlet port 111 and the outside air inlet port 112 are spaced apart from each other. In the illustrated embodiment, the inside air inlet port 111 and the outside air inlet port 112 are located at the front left side and the rear left side of the case 10, respectively.

[0068] The discharge port 120 serves as an outlet path of air flowing from the inside of the case 10 to the outside.

[0069] The discharge port 120 is provided at the other side of the case 10, spaced apart from the inlet port 110. Also, the discharge port 120 communicates the inside space and the outside space of the case 10.

[0070] The discharge port 120 includes an inside air discharge port 121 and an outside air discharge port 122. The inside air discharge port 121 and the outside air discharge port 122 serve as outlet paths of the inside air and the outside air, respectively, flowing from the inside of the case 10 to the outside.

[0071] Also, the inside air discharge port 121 and the outside air discharge port 122 are spaced apart from each other. In the illustrated embodiment, the inside air discharge port 121 and the outside air discharge port 122 are located at the rear right side and the front right side of the case 10, respectively.

[0072] The filter mounting portion 130 provides a space in which the filter module 50, which will be described later, is installed.

[0073] The filter mounting portion 130 is adjacent to the outside air inlet 112. Also, the filter mounting portion 130 overlaps the outside air inlet 112 in the inflow direction of air passing through the outside air inlet 112. Thus, air passing through the outside air inlet 112 can flow into the inside of the housing 10 through the filter mounting portion 130.

[0074] The filter mounting portion 130 is connected to the motor 140 and the sealing unit 150, respectively.

[0075] When the motor 140 is connected to the filter module 50, which will be described later, the motor 140 transmits power to the filter module 50. Also, the sealing unit 150 applies a force to the filter module 50 and assists in connection between the motor 140 and the filter module 50. Details thereof will be described later.

[0076] Air flowing into the inside of the housing 10 flows toward the heat exchange portion 20.

[0077] The heat exchange portion 20 exchanges heat between the inside air and the outside air flowing into the inside of the housing 10.

[0078] When the inside air and the outside air are forcibly circulated, the heat exchange portion 20 recovers waste heat of the inside air and transmits it to the outside air. Thus, the incoming outside air can be sterilized and humidified, and cleaner inside air can be provided to the room.

[0079] The heat exchange portion 20 is spaced apart from the inlet 110 and the outlet 120. In the illustrated embodiment, the heat exchange portion 20 is disposed at a central portion of the inside space of the housing 10.

[0080] The guide portion 30 guides flow paths of the inside air and the outside air passing through the heat exchange portion 20.

[0081] The guide portion 30 guides the inside air passing through the inside air inlet 111 to flow toward the heat exchange portion 20. Then, the guide portion 30 guides the inside air passing through the heat exchange portion 20 to flow toward the inside air outlet 121.

[0082] Also, the guide portion 30 guides the outside air passing through the outside air inlet 112 to flow toward the heat exchange portion 20. Then, the guide portion 30 guides the outside air passing through the heat exchange portion 20 to flow toward the outside air outlet 122.

[0083] In the illustrated embodiment, the guide portion 30 divides the inside space of the housing 10 into four spaces based on the heat exchange portion. Thus, the guide portion 30 can block the inside air or the outside air from flowing outside of the preset flow paths.

[0084] However, the guide portion 30 is not limited to the illustrated structure and can be formed in various structures capable of guiding flow paths of the inside air and the outside air.

[0085] The inflow of the inside air and the outside air can be performed by the fan part 40.

[0086] The fan part 40 can suck the air outside the case 10 into the inside of the case 10, and discharge the sucked air to the outside of the case 10 through the inside space of the case 10.

[0087] The fan part 40 is adjacent to the discharge port 120. Also, the fan part 40 overlaps the discharge port 120 in the discharge direction of the air passing through the discharge port 120. Thereby, the air passing through the discharge port 120 can be discharged to the outside of the case 10 through the fan part 40.

[0088] In the illustrated embodiment, the fan part 40 includes a supply fan 410 and a discharge fan 420.

[0089] The supply fan 410 can suck the inside air outside the case 10 into the inside of the case 10, and discharge the sucked inside air to the outside of the case 10 through the inside space of the case 10.

[0090] The supply fan 410 is adjacent to the inside air discharge port 121. Also, the supply fan 410 overlaps the inside air discharge port 121 in the discharge direction of the inside air passing through the inside air discharge port 121. Thereby, the air passing through the inside air discharge port 121 can be discharged to the outside of the case 10 through the supply fan 410.

[0091] The discharge fan 420 can suck the outside air outside the case 10 into the inside of the case 10, and discharge the sucked outside air to the outside of the case 10 through the inside space of the case 10.

[0092] The discharge fan 420 is adjacent to the outside air discharge port 122. Also, the discharge fan 420 overlaps the outside air discharge port 122 in the discharge direction of the outside air passing through the outside air discharge port 122. Thereby, the air passing through the outside air discharge port 122 can be discharged to the outside of the case 10 through the discharge fan 420.

[0093] The outside air flowing by the discharge fan 420 flows into the inside of the case 10 through the filter module 50.

[0094] The filter module 50 filters the air flowing toward the outside air inlet 112. In one embodiment, the filter module 50 can remove foreign substances such as dust and impurities floating in the air, and adsorb harmful gases.

[0095] The filter module 50 is detachably coupled to the filter mounting part 130 of the case 10. As described above, since the filter mounting part 130 is adjacent to the outside air inlet 112, the filter module 50 can be disposed at one side of the outside air inlet 112.

[0096] When the filter module 50 is inserted into the filter mounting portion 130, the filter module 50 can be pressed by the sealing unit 150 and connected with the motor 140.

[0097] Hereinafter, a detailed description will be given of the filter mounting portion 130, the motor 140, the sealing unit 150, and the filter module 50 with reference to the accompanying drawings. Figures 4 to 6 Hereinafter, a detailed description will be given of the filter mounting portion 130, the motor 140, the sealing unit 150, and the filter module 50 with reference to the accompanying drawings.

[0098] In the illustrated embodiment, the filter mounting portion 130 forms a through-hole 131 at the front side.

[0099] The through-hole 131 extends in one direction. The one direction extends in the thickness direction of the filter mounting portion 130. In the illustrated embodiment, the one direction is the front-rear direction.

[0100] A plurality of through-holes 131 can be provided. In the illustrated embodiment, the filter mounting portion 130 is provided with four through-holes 131.

[0101] A portion of the sealing unit 150 is inserted into and combined with the through-hole 131. At this time, the portion of the sealing unit 150 inserted into the through-hole 131 can reciprocate in the through-hole 131.

[0102] The motor fixing bracket 132 is formed on another portion of the filter mounting portion 130 spaced apart from the through-hole 131.

[0103] The motor fixing bracket 132 can be combined with the motor 140 described later to fix the motor 140 at a specific position inside the housing 10.

[0104] The motor fixing bracket 132 is located inside the filter mounting portion 130. In the illustrated embodiment, the motor fixing bracket 132 extends across the blank space inside the filter mounting portion 130. At this time, the motor fixing bracket 132 is provided so as not to collide with the filter module 50 inserted into the filter mounting portion 130.

[0105] The motor 140 is combined to one side of the motor fixing bracket 132.

[0106] The motor 140 converts electrical energy into mechanical energy and transmits it to the filter module 50.

[0107] The motor 140 is located inside the filter mounting portion 130. At this time, the motor 140 can be combined with the motor fixing bracket 132 to be fixed at a specific position of the filter mounting portion 130. In the illustrated embodiment, the motor 140 is combined to the central portion of the motor fixing bracket 132.

[0108] The motor 140 includes a rotating shaft 141. The motor 140 converts electrical energy into mechanical energy and rotates the rotating shaft 141.

[0109] The rotation shaft 141 can be coupled to the filter module 50 through penetration and transmit a rotational power to the filter module 50. In summary, the filter module 50 can receive a power from the motor 140 through the rotation shaft 141.

[0110] When the filter module 50 is inserted into the filter mounting portion 130, the fitting unit 150 moves the filter module 50 in a direction toward the motor 140. In the illustrated embodiment, the fitting unit 150 can move the filter module 50 to a rear side.

[0111] The fitting unit 150 is disposed at an inner side of the filter mounting portion 130. Thereby, it can be understood that a sectional area of the fitting unit 150 in a thickness direction is smaller than a sectional area of the filter mounting portion 130 in the thickness direction.

[0112] A portion of the fitting unit 150 is inserted and coupled into the through-hole 131 of the filter mounting portion 130. Also, the fitting unit 150 can reciprocate in one direction in an inner side space of the filter mounting portion 130. In the illustrated embodiment, the fitting unit 150 can reciprocate in a front-rear direction.

[0113] The fitting unit 150 is disposed between the filter mounting portion 130 and the filter module 50. In the illustrated embodiment, the fitting unit 150 is disposed between a front inner face of the filter mounting portion 130 and a front side face of the filter module 50.

[0114] The fitting unit 150 is in contact with one surface of the filter module 50. In the illustrated embodiment, the fitting unit 150 is in contact with a front side face of the filter module 50. Thereby, the fitting unit 150 can reciprocate in the front-rear direction to reciprocate the filter module 50 in the front-rear direction.

[0115] In the illustrated embodiment, the fitting unit 150 includes a pressurizing plate 151, a columnar portion 152, and an elastic member 153.

[0116] The pressurizing plate 151 is a portion in contact with a surface of the filter module 50 when the filter module 50 is coupled to the filter mounting portion 130 of the housing 10.

[0117] The pressurizing plate 151 forms an appearance of one side of the filter module 50 toward the fitting unit 150. In the illustrated embodiment, the pressurizing plate 151 forms an appearance of a rear side of the fitting unit 150.

[0118] The pressurizing plate 151 is in contact with a surface of the filter module 50 and can apply a force to the filter module 50. To this end, the pressurizing plate 151 is preferably formed in a shape corresponding to the filter module 50.

[0119] In the illustrated embodiment, the pressurizing plate 151 is formed as a flat plate extending in the up, down, left, and right directions. However, the pressurizing plate 151 is not limited to the illustrated shape, and can be formed in various shapes. For example, the pressurizing plate 151 can be formed as a plate-shaped body having at least a part of a curved surface.

[0120] Since the pressurizing plate 151 is located inside the filter mounting portion 130, the cross-sectional area in the thickness direction thereof is formed to be smaller than the cross-sectional area in the thickness direction of the filter mounting portion 130.

[0121] In one embodiment, the pressurizing plate 151 can be formed in a shape corresponding to the inner face of the filter mounting portion 130. In the illustrated embodiment, the outer periphery of the pressurizing plate 151 corresponds to the inner periphery of the filter mounting portion 130.

[0122] A vent 151a, which is a flow path of the outside air, is formed on a part of the pressurizing plate 151. The outside air flowing toward the outside air inlet 112 flows into the inside space of the housing 10 through the vent 151a.

[0123] A cylindrical portion 152 is formed on one surface of the pressurizing plate 151.

[0124] The cylindrical portion 152 guides the reciprocating direction of the pressurizing plate 151, and prevents any separation of the sealing unit 150 from the housing 10.

[0125] The cylindrical portion 152 is formed to extend from one surface of the pressurizing plate 151 toward a direction away from the motor 140. In the illustrated embodiment, the cylindrical portion 152 is formed to extend from the front side of the pressurizing plate 151 toward the front side.

[0126] The cylindrical portion 152 is inserted and coupled into the through-hole 131 of the filter mounting portion 130. The cylindrical portion 152 can reciprocate in the through-hole 131 in the direction in which it extends. In the illustrated embodiment, the one direction is the front-rear direction.

[0127] The cylindrical portion 152 can be formed in a shape corresponding to the inner periphery of the through-hole 131. In the illustrated embodiment, the cylindrical portion 152 is formed in a cylindrical shape. In the illustrated embodiment, the diameter of the cylindrical portion 152 is formed to be equal to or smaller than the diameter of the through-hole 131.

[0128] However, the shape of the cylindrical portion 152 is not limited to the illustrated shape, and can be formed in various shapes. For example, the cylindrical portion 152 can be formed in an octagonal cylindrical shape.

[0129] A plurality of cylindrical portions 152 can be provided. At this time, the number of the cylindrical portions 152 is formed to be equal to or smaller than the number of the through-holes 131. In the illustrated embodiment, the cylindrical portion 152 is provided with four.

[0130] In the illustrated embodiment, the elastic member 153 is coupled to the outer periphery of the columnar portion 152.

[0131] The elastic member 153 provides an elastic force so that the pressurizing plate 151 moves in the direction toward the motor 140. To this end, the elastic member 153 is disposed at a position opposite to the motor 140 with respect to the pressurizing plate 151.

[0132] In one embodiment, the elastic member 153 can be a spring disposed to surround the outer periphery of the columnar portion. However, the elastic member 153 is not limited to the illustrated embodiment and can be formed in various structures capable of providing an elastic force to the pressurizing plate 151.

[0133] The elastic member 153 can store an elastic force by a change in shape. The elastic member 153 transmits the elastic force to the pressurizing plate 151. Thereby, the filter module 50 in surface contact with the pressurizing plate 151 can also receive the force from the elastic member 153.

[0134] Since the elastic member 153 exerts an elastic force to the pressurizing plate 151 in the direction toward the motor 140, the filter module 50 also receives the elastic force in the direction toward the motor 140. Accordingly, the filter module 50 can move in the direction toward the motor 140.

[0135] In the illustrated embodiment, the filter module 50 includes a dismounting unit 510 and a cleaning unit 520.

[0136] The dismounting unit 510 is a portion directly detachably coupled to the housing 10 in the filter module 50. Specifically, the dismounting unit 510 is detachably coupled to the filter mounting portion 130 of the housing 10.

[0137] When the dismounting unit 510 is dismounted with respect to the housing 10, the dismounting unit 510 moves in a first direction, and when the dismounting unit 510 reaches a predetermined height, the dismounting unit 510 moves in a second direction different from the first direction. At this time, the second direction is the direction toward the motor 140. In the illustrated embodiment, the first direction is the up-down direction, and the second direction is the front-rear direction.

[0138] The dismounting unit 510 is in surface contact with the pressurizing plate 151 of the sealing unit 150. In the illustrated embodiment, the dismounting unit 510 is positioned at the rear side of the pressurizing plate 151 and is in surface contact with the rear side surface of the pressurizing plate 151.

[0139] In one embodiment, a handle unit (not shown) capable of being held by a user can be formed at the lower side of the dismounting unit 510.

[0140] In the illustrated embodiment, the dismounting unit 510 includes a filter screen 511, a dust tray 512, and a latching stage 513.

[0141] The filter net 511 filters air flowing toward the outside air inlet 112. To this end, the filter net 511 is disposed on the flow path of the air.

[0142] The filter net 511 is disposed on one surface of the dismounting unit 510 facing the pressurizing plate 151. In the illustrated embodiment, the filter net 511 is disposed on the front side of the dismounting unit 510.

[0143] The filter net 511 overlaps the vent 151a of the pressurizing plate 151 in the flow direction of the air. In the illustrated embodiment, the filter net 511 overlaps the vent 151a in the front-rear direction. Thereby, air flowing toward the vent 151a can pass through the filter net 511 first and then the vent 151a. Therefore, only air filtered by the filter net 511 can flow into the inside of the housing 10.

[0144] In one embodiment, the filter net 511 can be formed in a mesh structure. However, the filter net 511 is not limited to the illustrated embodiment and can be formed in various structures capable of filtering air.

[0145] A filter net through-hole 511a is formed in the center of the filter net 511 for coupling the cleaning unit 520 described later. This will be described in detail later.

[0146] The dust tray 512 is disposed on the lower side of the dismounting unit 510.

[0147] The dust tray 512 collects dust separated from the filter net 511. To this end, a space for collecting dust separated from the filter net 511 is formed in the inside of the dust tray 512.

[0148] The dust tray 512 is located on the lower side of the dismounting unit 510. In one embodiment, the dust tray 512 extends toward the lower side of the filter net 511 and is formed in one body with the filter net 511. In another embodiment, the dust tray 512 is detachably coupled to the lower side of the filter net 511.

[0149] Also, the dust tray 512 is formed to protrude toward a direction away from the pressurizing plate 151. In the illustrated embodiment, the dust tray 512 is formed to protrude toward the rear side. Thereby, the inside space of the dust tray 512 can be formed at a position opposite to the pressurizing plate 151 with respect to the filter net 511.

[0150] This is because air flows from the filter net 511 toward the pressurizing plate 151, and thus dust filtered by the filter net 511 is accumulated on the surface of the filter net 511 opposite to the pressurizing plate 151.

[0151] The dust separated from the filter screen 511 is moved to the inner space of the dust tray 512 located at the lower side of the filter screen 511. Thereby, the user can perform the cleaning of the filter module 50 only by the operation of removing the dust collected in the dust tray 512.

[0152] The locking stand 513 can be formed protruding at one side of the dismounting unit 510.

[0153] When the filter module 50 is inserted into the housing 10, the locking stand 513 is inserted and coupled into the locking groove 133 of the filter mounting portion 130, preventing any detachment of the filter module 50. This will be described in detail later.

[0154] The cleaning unit 520 is coupled to one surface of the dismounting unit 510.

[0155] Hereinafter, the cleaning unit 520 will be described with reference to the accompanying drawings. Figures 7 to 8 The cleaning unit 520 is coupled to one surface of the dismounting unit 510.

[0156] The cleaning unit 520 directly removes the dust adhered to the surface of the filter screen 511.

[0157] The cleaning unit 520 is disposed on the surface of the filter screen 511 opposite to the pressurizing plate 151. In the illustrated embodiment, the cleaning unit 520 is disposed at the rear side of the filter screen 511.

[0158] The cleaning unit 520 can be coupled with the dismounting unit 510 and moved together with the dismounting unit 510 when the dismounting unit 510 is dismounted or mounted with respect to the housing 10. When the dismounting unit 510 is coupled to the housing 10, the cleaning unit 520 is detachably coupled to the motor 140 disposed in the housing 10.

[0159] When the cleaning unit 520 is dismounted or mounted with respect to the housing 10, the cleaning unit 520 can be moved in the direction toward the motor 140 by the pressurizing plate 151. In the illustrated embodiment, the cleaning unit 520 can be moved to the rear side by the pressurizing plate 151 and coupled to the rotating shaft 141 of the motor 140.

[0160] Also, the cleaning unit 520 is connected to the motor 140 and receives power from the motor 140.

[0161] The cleaning unit 520 is configured to be relatively rotatable with respect to the filter screen 511 in a state in which at least a portion thereof is in contact with the filter screen 511. At this time, the cleaning unit 520 can be connected to the rotating shaft 141 of the motor 140 and can be rotated using the rotational power received from the rotating shaft 141.

[0162] In one embodiment, the cleaning unit 520 can be selectively activated without being simultaneously activated with the fan section 40. In another embodiment, the cleaning unit 520 can be activated when the fan section 40 is stopped. In still another embodiment, the cleaning unit 520 can be periodically activated at predetermined intervals.

[0163] In the illustrated embodiment, the cleaning unit 520 includes a cleaning rod 521, a brush 522, a fixing member 523, and a motor connecting shaft 524.

[0164] The cleaning rod 521 is a portion that is directly rotated by the motor 140 in the cleaning unit 520.

[0165] The cleaning rod 521 is detachably coupled to one side of the filter net 511. At this time, the one side is a direction opposite to the pressurizing plate 151 with respect to the filter net 511. In the illustrated embodiment, the cleaning rod 521 is detachably coupled to a rear side of the filter net 511.

[0166] The cleaning rod 521 is connected to the rotating shaft 141 of the motor 140 and receives a rotational force through the rotating shaft 141. Thus, the cleaning rod 521 can be relatively rotated with respect to the filter net 511 with the rotating shaft 141 as a pivot. In one embodiment, the pivot of the cleaning rod 521 is located at a central portion of the cleaning rod 521.

[0167] In the illustrated embodiment, the cleaning rod 521 includes a wing portion 521a, a rod through-hole 521b, and a brush insertion slot 521c.

[0168] The wing portion 521a extends radially outward from the pivot of the cleaning rod 521.

[0169] In the illustrated embodiment, the wing portion 521a is formed in a columnar shape extending in one direction. In the illustrated embodiment, the length of the wing portion 521a is preferably formed to be equal to or less than the radius of the filter net 511.

[0170] However, the shape of the wing portion 521a is not limited to the illustrated shape and can be formed in various shapes. For example, the wing portion 521a can be curved and extend in a predetermined direction.

[0171] The wing portion 521a can be provided in plural. In the illustrated embodiment, the cleaning rod 521 is provided with four wing portions 521a.

[0172] The rod through-hole 521b is formed at a central portion of the cleaning rod 521. The fixing member 523, which will be described later, is detachably coupled in the rod through-hole 521b. This will be described in detail later.

[0173] The brush insertion slot 521c for accommodating the brush 522, which will be described later, is formed in a portion of the cleaning rod 521.

[0174] A brush insertion groove 521c is formed on one side of the wing portion 521a. In the illustrated embodiment, the brush insertion groove 521c is formed concavely on the front side of the wing portion 521a.

[0175] The brush insertion groove 521c extends in the extension direction of the wing portion 521a. In the illustrated embodiment, the brush insertion groove 521c extends in one direction. However, the brush insertion groove 521c is not limited to the illustrated shape, and can be formed in various shapes. For example, the brush insertion groove 521c can be curved and extend in a predetermined direction.

[0176] The brush 522 rubs against the surface of the filter screen 511 to remove dust.

[0177] The brush 522 is coupled to the side of the cleaning rod 521 that faces the filter screen 511.

[0178] In the illustrated embodiment, the brush 522 is detachably coupled to the brush insertion groove 521c of the cleaning rod 521 in a sliding manner. Thus, the brush 522 can be easily separated from the cleaning rod 521 and cleaned. This facilitates maintenance of the cleaning unit 520 including the brush 522.

[0179] The brush 522 is configured to be relatively rotatable with respect to the filter screen 511 in a state in which at least a portion thereof is in contact with the filter screen 511. Thus, when the brush 522 is rotated, dust adhering to the surface of the filter screen 511 can be removed from the filter screen 511.

[0180] The brush 522 is formed in a shape corresponding to the wing portion 521a in which the brush insertion groove 521c is formed. In the illustrated embodiment, the brush 522 extends in one direction to correspond to the wing portion 521a extending in the one direction. In an embodiment not shown, the brush 522 is curved and extends in a predetermined direction to correspond to the wing portion 521a curved and extending in the predetermined direction.

[0181] The brush 522 can be formed of a flexible material having a high coefficient of friction. For example, the brush 522 can be formed of a synthetic rubber resin or a silicone resin material.

[0182] A plurality of brushes 522 can be provided. In this case, the number of brushes 522 is preferably the same as the number of wing portions 521a. In the illustrated embodiment, the cleaning unit 520 is provided with four brushes 522.

[0183] The cleaning rod 521 to which the brush 522 is coupled can be coupled to the filter screen 511 by a fixing member 523.

[0184] The fixing member 523 fixes the cleaning rod 521 to the filter screen 511.

[0185] The fixing member 523 is combined with the cleaning rod 521 and the filter screen 511 interposed therebetween. At this time, a portion of the fixing member 523 is inserted and combined into the rod through-hole 521b of the cleaning rod 521, and another portion of the fixing member 523 is inserted and combined into the filter screen through-hole 511a of the filter screen 511. Thus, the cleaning rod 521 can rotate with respect to the filter screen 511 with the rod through-hole 521b combined with the fixing member 523 as a rotation shaft.

[0186] In one embodiment, the fixing member 523 can be a bolt coupling structure. However, the fixing member 523 is not limited to the embodiment, and can be formed in various structures capable of coupling the cleaning rod 521 to the filter screen 511.

[0187] The other side of the cleaning rod 521 is coupled to the motor connecting shaft 524.

[0188] The motor connecting shaft 524 is a portion for inserting and combining the rotation shaft 141 of the motor 140 in the cleaning unit 520.

[0189] The motor connecting shaft 524 can receive a rotational power from the rotation shaft 141 and rotate together with the rotation shaft 141.

[0190] Also, the motor connecting shaft 524 is coupled to the central portion of the cleaning rod 521. When the motor connecting shaft 524 rotates, the cleaning rod 521 can rotate together with the motor connecting shaft 524. Thus, when the rotation shaft 141 rotates, the cleaning rod 521 can rotate together with the rotation shaft 141 through the motor connecting shaft 524.

[0191] The motor connecting shaft 524 is formed in a shape corresponding to the rotation shaft 141. In one embodiment, the inner circumference of the motor connecting shaft 524 can be formed in a shape corresponding to the outer circumference of the rotation shaft 141. For example, the inner circumference of the motor connecting shaft 524 can be formed in an octagonal column shape corresponding to the outer circumference of the rotation shaft 141.

[0192] Hereinafter, the structure of the air cleaner 1 according to the embodiment of the present application and the configuration of each arrangement will be described with reference to the accompanying drawings. Figure 9 The process of disassembling the filter module 50 and the housing 10 will be described.

[0193] Figure 9 a shows the movement of the filter module 50 in the first direction.

[0194] As described above, the filter module 50 is detachably coupled to the filter mounting portion 130 of the housing 10. When the disassembly unit 510 of the filter module 50 is inserted into the housing 10, the disassembly unit 510 moves in the first direction, i.e., in the upward direction in the illustrated embodiment.

[0195] When the dismounting unit 510 moving in the first direction reaches a predetermined height, the dismounting unit 510 is moved in a second direction different from the first direction, i.e., in the rear side direction in the illustrated embodiment, by the pressing plate 151.

[0196] Figure 9 b shows the movement of the filter module 50 in the second direction.

[0197] When the locking stage 513 of the dismounting unit 510 reaches the same height as the locking groove 133 of the filter mounting portion 130, the locking stage 513 is engaged and inserted into the locking groove 133 by the close fitting unit 150. Thereby, the locking stage 513 can prevent any detachment of the filter module 50 inserted into the filter mounting portion 130.

[0198] The locking groove 133 is formed in a shape corresponding to the locking stage 513. In one embodiment, an inclination bent toward the locking groove 133 can be formed at the peripheral portion of the locking groove 133. In the illustrated embodiment, the locking stage 513 can be separated from the locking groove 133 with a small force by the inclination.

[0199] As described above, the pressing plate 151 receives the elastic force to move in the direction toward the motor 140 by the elastic member 153. Thereby, when the dismounting unit 510 is coupled to the housing 10, the pressing plate 151 moves the dismounting unit 510 in the direction toward the motor 140. That is, the dismounting unit 510 is moved in the second direction.

[0200] In the above process, the rotating shaft 141 of the motor 140 is inserted into the motor connecting shaft 524 of the cleaning unit 520. Therefore, the cleaning unit 520 of the filter module 50 can also be dismounted from the motor with a small force by the pressing plate 151. Thereby, the filter module 50 can be more easily dismounted from the housing 10. At the same time, when the filter module 50 is coupled to the housing 10, any detachment of the filter module 50 can be prevented.

[0201] Hereinafter, a cleaning process of the filter module 50 will be described with reference to Figure 10

[0202] Figure 10 a and Figure 10 b respectively show the states of the filter module 50 before and after cleaning.

[0203] As the air cleaner 1 operates over time, dust D in the air filtered through the filter screen 511 accumulates on the surface of the filter screen 511.

[0204] ​Before the cleaning unit 520 is driven, the brush 522 inserted in the cleaning rod 521 is maintained in a stationary state in a state of contacting the surface of the filter net 511. Thereafter, when the cleaning unit 520 is activated, the cleaning rod 521 is rotated by receiving rotational power from the motor 140.

[0205] The brush 522 inserted in the cleaning rod 521 rubs against the surface of the filter net 511 and rotates together with the cleaning rod 521. Thereby, the dust D attached to the surface of the filter net 511 can be automatically removed from the filter net 511 by the frictional force.

[0206] The dust D separated from the filter net 511 is moved into the internal space of the dust tray 512 located at the lower side of the filter net 511. Thereby, the user can perform the cleaning of the filter module 50 only by the operation of removing the dust D collected in the dust tray 512. Accordingly, the cleaning convenience of the filter module 50 can be further improved, and the clean state of the filter module 50 can be maintained even in the normal state.

[0207] Hereinafter, the preferred embodiments of the present application are described with reference to the accompanying drawings, but the present application is not limited to the configurations of the various embodiments described.

[0208] In addition, those skilled in the art can make various modifications and changes to the present application within the scope of the present application described in the appended claims.

[0209] Further, the embodiments can be configured by selectively combining all or a part of the respective embodiments to implement various modifications.

[0210] Explanation of Reference Numerals

[0211] 1: Air cleaner

[0212] 10: Housing

[0213] 110: Inlet

[0214] 111: Inlet air inlet

[0215] 112: Outside air inlet

[0216] 120: Outlet

[0217] 121: Inside air outlet

[0218] 122: Outside air outlet

[0219] 130: Filter mounting portion

[0220] 131: Through-hole

[0221] 132: Motor fixing bracket

[0222] 133: locking groove

[0223] 140: motor

[0224] 141: rotating shaft

[0225] 150: close contact unit

[0226] 151: pressurizing plate

[0227] 151a: vent

[0228] 152: columnar portion

[0229] 153: elastic member

[0230] 20: heat exchange portion

[0231] 30: guide portion

[0232] 40: fan portion

[0233] 410: air supply fan

[0234] 420: air exhaust fan

[0235] 50: filter module

[0236] 510: disassembly unit

[0237] 511: filter screen

[0238] 511a: filter screen through hole

[0239] 512: dust tray

[0240] 513: locking stage

[0241] 520: cleaning unit

[0242] 521: cleaning rod

[0243] 521a: wing portion

[0244] 521b: rod through hole

[0245] 521c: brush insertion groove

[0246] 522: brush

[0247] 523: fixing member

[0248] 524: motor connecting shaft

[0249] D: dust

Claims

1. An air purifier, characterized in that, include: The casing has an air inlet and an air outlet; as well as A filter module is disposed on one side of the inlet and filters the air flowing towards the inlet. The filter module includes: The disassembly unit, having a filter screen in a portion thereof, is detachably coupled to the housing; and The cleaning unit is configured to rotate relative to the filter while at least a portion of it is in contact with the filter. When the disassembly / assembly unit is attached to the housing, the cleaning unit is detachably attached to a motor housed within the housing. When the disassembly / assembly unit is disassembled or assembled relative to the housing, the disassembly / assembly unit moves in a first direction. When the disassembly / assembly unit reaches a predetermined height, it moves in a second direction different from the first direction, wherein the second direction is toward the motor. When the cleaning unit is detached from or assembled relative to the motor, the cleaning unit moves in the second direction. When the disassembly / assembly unit is disassembled or assembled relative to the housing, the cleaning unit moves together with the disassembly / assembly unit. The housing includes a sealing unit that moves in the direction toward the motor when the disassembly unit is attached to the housing.

2. The air purifier according to claim 1, characterized in that, The sealing unit includes a pressure plate and an elastic component. The pressure plate contacts the surface of the disassembly / assembly unit when the disassembly / assembly unit is disassembled or assembled relative to the housing; and The elastic member provides an elastic force, causing the pressure plate to move in the direction toward the motor.

3. The air purifier according to claim 2, characterized in that, The pressure plate includes a columnar portion that extends from one surface of the pressure plate in a direction away from the motor. The elastic member is a spring configured to surround the outer periphery of the columnar portion.

4. The air purifier according to claim 1, characterized in that, The cleaning unit includes a cleaning stick and a brush. The cleaning rod is detachably attached to the filter screen and can be connected to the motor for rotation; and The brush can be attached to the side of the cleaning rod facing the filter screen, and rotates together with the cleaning rod when the cleaning rod rotates, and can rotate relative to the filter screen while at least a portion of it is in contact with the filter screen.

5. The air purifier according to claim 4, characterized in that, The brush is detachably attached to the cleaning rod in a sliding manner.

6. The air purifier according to claim 4, characterized in that, The cleaning unit includes a fixing member that is combined with the cleaning rod and the filter screen sandwiched therebetween.

7. The air purifier according to claim 4, characterized in that, The cleaning rod includes multiple wings that extend radially outward from the pivot.

8. The air purifier according to claim 1, characterized in that, The disassembly unit includes a dust tray located on the underside of the cleaning unit and forming an internal space for collecting dust separated from the filter.

9. The air purifier according to claim 8, characterized in that, The dust tray extends toward the underside of the filter and is integral with the filter.

10. The air purifier according to claim 8, characterized in that, The dust tray is detachably attached to the underside of the filter.

11. The air purifier according to claim 1, characterized in that, The cleaning unit includes a motor connecting shaft for inserting into and engaging with the rotating shaft of the motor, and rotating together with the rotating shaft when the rotating shaft rotates.

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