JP5604816B2 - Filter cleaning method, humidifier and air purifier using the same - Google Patents

Description

  The present invention relates to a method for cleaning a filter in an apparatus having a filter for filtering air.

  Conventionally, this type of cleaning method is known to scrape dust adhering to a roll-shaped brush (see, for example, Patent Document 1).

  Hereinafter, the filter cleaning method will be described with reference to FIG.

  As shown in FIG. 10, the cleaning device 101 includes a box-shaped housing 102, a roll-shaped brush 103 that is rotatably supported on both ends of the housing 102, and a brush 103 in the housing 102. The dust box 104 formed on the other end side, the lid 105 that can be freely closed by rotating the opening of the dust box 104, and the tip of the brush 103 on the upper inner surface of the housing 102 opposite to the lid 105. It is provided with a dust scraper 106 attached so as to come into contact with the surface. The dust adhering to the roll-shaped brush 103 is separated from the brush 103 by the brush 103 rotating and being scraped by the dust scraping device 106, and stored in the dust box 104.

  In addition, this type of cleaning method automatically cleans a filter of an air cleaner (see, for example, Patent Document 2).

  Hereinafter, the filter cleaning method will be described with reference to FIG.

  As shown in FIG. 11, the filter cleaning means 201 includes a suction duct 203 that faces the front surface of the filter 202 and extends in the horizontal direction, a box-shaped belt coupling portion 204 provided at the base end of the suction duct 203, A dust box 205 is detachably attached to the belt connecting portion 204. The suction part facing the filter 202 of the suction duct 203 is provided with a plurality of suction holes. When the filter 202 is cleaned, suction is performed while the suction duct 203 moves on the stationary filter 202. 202 The front surface is cleaned. The dust sucked from the filter 202 is collected and collected in the dust box 205.

JP 2008-104633 A JP 2006-289235 A

  In such a conventional cleaning device, when scraping off the dust, a large frictional force is generated between the roll-shaped brush to be cleaned and the dust scraping means, and the roll-shaped brush surface is roughened, There was a problem of promoting deterioration. In addition, since the roll-shaped brush and the dust scraping means are always in contact with each other, if the brush is not supposed to be deformed, the brush will be deformed by pressing, making it difficult to demonstrate its original performance. there were. In order to maintain the performance of the brush over a long period of time, it is required to suppress deterioration due to cleaning.

  Moreover, in the cleaning device of Patent Document 2, a suction duct is provided to remove dirt attached to the filter surface, and not only the installation space for the suction duct but also the vertical and horizontal directions for moving the suction duct. Therefore, there is a problem that the structure of the apparatus is complicated and large, and a means for cleaning the filter with a simpler structure is required.

  Accordingly, the present invention solves the above-described conventional problems, and a user's hand is able to remove dirt adhered to the surface of the filter by a simple and compact method while suppressing the deterioration of the filter without causing friction as much as possible. It aims at providing the cleaning method which can be cleaned without bothering.

In order to achieve this object, the present invention contacts a filter having a resilience with a filter pressing means including a filter contact portion that contacts the filter to deform the filter and a support portion that supports the contact portion. Then, while moving the contact surface between the filter and the filter contact portion, the filter contact portion is pressed to repeatedly deform and then restore the thickness of the filter, thereby removing the dirt adhered to the surface and cleaning the filter. In this way, the intended purpose is achieved.

According to the present invention, the dirt attached to the surface of the filter is removed by removing and repeating the deformation of the filter thickness and the subsequent restoration, so that friction can be generated as much as possible by a simple and compact method. In addition, cleaning can be performed while suppressing deterioration of the filter. Further, it is possible to reduce the time and effort for cleaning the filter, and to obtain the effect that the original performance of the filter can be maintained over a long period of time.

Schematic sectional view showing the filter cleaning method of Embodiment 1 of the present invention The schematic side view which shows the filter cleaning method of Embodiment 2 of this invention. Same front view Schematic sectional view showing the filter cleaning method of Embodiment 3 of the present invention Same schematic enlarged view Schematic sectional view showing the filter cleaning method of Embodiment 4 of the present invention Schematic sectional view showing another filter cleaning method of Embodiment 4 of the present invention Schematic sectional view showing a humidifier according to Embodiment 5 of the present invention. The graph which shows the adhesion speed of the dirt in the Example of this invention Schematic perspective view showing a conventional filter cleaning device Schematic sectional view showing a conventional filter cleaning device

According to a first aspect of the present invention, there is provided a filter cleaning method comprising contacting a filter having a resilience with a filter pressing means having a filter contact portion that contacts the deformable filter and a support portion that supports the contact portion. The filter is cleaned by peeling off and removing dirt adhered to the surface by repeatedly deforming and then restoring the thickness of the filter by pressing the filter contact portion while moving the contact surface between the filter and the filter contact portion. It is characterized by the fact that the dirt attached to the surface is peeled and removed by changing the thickness of the filter and then restoring it repeatedly, so that the filter surface is less susceptible to friction and prevents the surface of the filter from deteriorating. In addition, the filter holding means can be brought into uniform contact with the entire filter. And, the effect is obtained that the entire filter can be uniformly cleaned. In order for the contact surface between the filter and the filter contact portion to move, at least one of the filter and the filter contact portion may move while the filter and the filter contact portion are always in contact with each other.

Further, in a humidifying device comprising at least a main body case, a humidifying filter having resilience in the main body case, a blowing means for sending air to the humidifying filter, and a water supply means to the humidifying filter. The humidifying device that is capable of cleaning the humidifying filter in the main body case by cleaning the humidifying filter by the filter cleaning method according to claim 1 can remove dirt attached to the surface of the humidifying filter, The effect that the fall of the humidification performance by clogging can be prevented is acquired.

Further, at least a main body case, a dust collection filter, a humidification filter, a blowing means for sending air to the dust collection filter and the humidification filter, and a water supply means to the humidification filter in the main body case An air cleaning device comprising: a filter for cleaning a dust collection filter and / or a humidifying filter by the filter cleaning method according to claim 1. Thus, it is possible to remove the dirt adhering to the surface of the filter and to prevent the deterioration of the air cleaning performance and the humidification performance due to clogging.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
As shown in FIG. 1, a repulsive filter 11 rotates like a caterpillar while being supported by, for example, two shafts 12, and is a filter comprising a flat plate 13 as a filter contact portion and a support portion 14 with respect to the filter 11. The holding means 15 moves from the position A to the position B in the figure and intermittently gives an impact. The filter holding means 15 is connected to the driving means 16 and operates thereby.

  The filter 11 having resilience can use a urethane foam, a three-dimensional knitted fabric made of resin fibers, or the like as a base material. The base material can be used as it is as a filter, or the surface of the base material can be coated to give durability and can be used as a filter.

  Here, the resilience is the resilience after deformation, that is, the ease of returning to the shape before the deformation when there is no factor causing the deformation.

  According to the above configuration, the flat plate 13 moves from the position A to the position B as shown by the arrow in the figure and contacts the filter 11, for example, presses until the thickness of the filter 11 is about half, and then again The movement that the flat plate 13 returns to the position A is repeated. At this time, the filter 11 is repeatedly deformed and restored, so that the dirt attached to the surface of the filter 11 can be easily peeled and removed. At the same time, when the filter 11 rotates and the contact surface between the filter 11 and the flat plate 13 moves, the flat plate 13 can be sequentially brought into contact with the entire filter 11 to be deformed, and dirt adhered to the entire surface of the filter 11 can be removed. It can be efficiently peeled and removed. At this time, in order to obtain the dirt removal effect, the filter 11 needs to be repeatedly deformed and restored, and therefore the filter 11 needs to be repulsive.

  If the flat plate 13 as the filter contact portion has resilience, the deformation effect of the filter 11 is halved. Therefore, the material constituting the flat plate 13 is a resin or metal rod having no resilience and excellent durability. It is good to use. Examples of the resin include acrylic, polypropylene, polyethylene, and polycarbonate. Examples of the metal include stainless steel, aluminum, and copper. If an antibacterial metal such as copper or zinc is used, a bactericidal effect on the surface of the filter 11 can also be expected. The filter contact portion may have any size such as a diameter and a width as long as it uniformly hits the entire filter surface. Moreover, since the site | part which a friction with the filter 11 produces can be minimized, the effect that the deformation | transformation and deterioration of the filter 11 can be prevented is acquired.

  Furthermore, unevenness may be provided on the surface of the flat plate 13 that contacts the filter 11. For example, a brush with a large amount of bristles, a cushioning material with an embossing of about 1 cm in diameter, a urethane foam with random holes, or a flat plate with grooves It may be something like that. By providing the unevenness, it is possible to apply pressure due to deformation to dirt three-dimensionally adhering to the filter surface or dirt that has entered the deep part of the filter, so that a higher dirt removal and removal effect can be obtained. By providing the unevenness, the unevenness reaches the deep part of the filter even if the filter is not strongly pressed and deformed deeply, so that the dirt can be efficiently removed.

  By rotating the filter 11, the cleaning can be repeated within a certain space, so that the filter cleaning can be performed in a compact manner. As a method of rotating the filter 11 in the present embodiment, the filter 11 is supported by two shafts existing at a constant distance, and the driving means is connected to one of the shafts so that the filter 11 is rotated like a caterpillar. be able to. A stepping motor or the like may be used as the driving means.

  The filter pressing means 15 is moved by a driving means 16 provided on the upper part of the filter. By repeating contact with the filter 11 intermittently, for example, if it is struck or vibrated, an impact is mixed as compared with a case where a stable force is applied, and a higher effect of removing and removing dirt is obtained. Is obtained.

(Embodiment 2)
The same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. As shown in the side view of FIG. 2, the filter 21 having resilience is rotated by rotating the surface of the filter contact portion 22 having a substantially cylindrical shape about a vertical operation rod 23 that is the central axis of the cylinder. The filter contact portion 22 is contacted. In addition, the filter holding unit 24 is usually separated from the filter, but only in cleaning, the filter holding unit 24 comes into contact with the filter 21 so as to sandwich the filter 21 together with the support unit 25. On the surface of the filter contact portion 22, gear-like irregularities 26 are provided, such as grooves provided on a flat plate.

  FIG. 3 shows a front view of the filter cleaning device. The filter contact portion 22 is hollow, and an up / down operation rod 23 that operates along a support portion 25 provided with a guide is inserted into the hollow portion, and the filter contact portion 22 comes into contact with the filter 21 while rotating. ing.

  By making the filter contact portion 22 substantially cylindrical, the friction between the filter 21 and the filter contact portion 22 can be reduced, and the filter can be deformed while suppressing deterioration. In addition, by reducing the diameter of the tube of the filter contact portion 22, it is possible to clean the entire filter even if the filter contact portion is made compact. At this time, if the filter contact portion 22 has resilience, the deformation effect of the filter 21 is halved. Therefore, it is preferable to use a resin or metal rod that does not have resilience as the material constituting the filter contact portion 22. . Examples of the resin include acrylic, polypropylene, polyethylene, and polycarbonate. Examples of the metal include stainless steel, aluminum, and copper. If a metal having antibacterial properties such as copper or zinc is used, a bactericidal effect on the surface of the filter 21 can also be expected. The filter contact portion may have any size such as a diameter and a width as long as it uniformly hits the entire filter surface. Moreover, since the site | part which friction with the filter 21 can be minimized, the effect that the deformation | transformation and deterioration of the filter 21 can be prevented is acquired.

  If the filter contact part 22 contacts the filter 21 only at the time of cleaning, the effect that the deformation | transformation and deterioration of the filter by continuous compression can be prevented is acquired. As a method of moving the filter holding means from the normal position to the cleaning position, the support portion 25 that supports the filter contact portion 22 is moved in parallel to the filter 21 as indicated by an arrow A in FIG. Just do it.

  As a method of rotating the substantially cylindrical filter contact portion 22 while making contact with the filter 21, for example, a hollow filter contact portion 22 is used, and the hollow portion is vertically moved along a column provided with a guide. The operating rod 23 may be inserted so that the filter contact portion 22 contacts the filter 21 while rotating as indicated by an arrow B in FIG. By providing the surface of the filter contact portion 22 with a gear-like unevenness 26 having a groove on a flat plate, it is possible to prevent dirt that is three-dimensionally attached to the filter surface or dirt that has entered the deep portion of the filter. Since it can be deformed by applying a certain pressure, a higher effect of removing and removing dirt can be obtained.

  The filter holding part 24 is good to hold | maintain a filter from the opposite side of the filter contact part 22 via the filter 21, for example. The filter holding portion 24 may be integrated with the filter contact portion 22 or the support portion 25 so as to sandwich the filter 21.

(Embodiment 3)
The same parts as those in the first or second embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. As shown in FIG. 4, the substantially cylindrical filter 31 rotates about the central axis 32 of the cylinder as a rotation axis. The filter pressing means is composed of a filter contact portion 33 and a support portion 34, and the filter contact portion 33 rotates following the rotation of the filter 31. Further, a filter holding portion 35 is provided in the hollow portion of the filter 31. A disinfectant storage case 36 is disposed in the vicinity of the filter pressing means.

  According to this configuration, the filter contact portion 33 moves from the position A to the position B and contacts the filter 31, but when the filter contact portion 33 is at the position A, that is, in a state away from the filter 31, The support part 34 serves as a lid for the lower inlet of the disinfectant storage case 36. When the filter contact portion 33 moves to the position B, the lid of the inlet of the disinfecting liquid storage case 36 is removed, and the disinfecting liquid stored inside is supplied to the filter 31. Thereby, at the time of filter cleaning, the filter 31 can be sterilized and sterilized at the same time, germs and molds attached to the filter are killed, and the filter 31 can be kept clean.

  FIG. 5 shows an enlarged schematic view of the filter contact portion 33 in contact with the filter 31. The filter contact portion 33 of the filter holding means rotates in response to the rotation of the filter 31 while deforming the filter 31 having resilience.

  As the substantially cylindrical filter 31, a three-dimensional knitted fabric composed of fibers is used, and the mechanism for removing and removing dirt will be described below. When the filter contact portion 33 crushes about half of the thickness of the filter 31 having resilience, the filter 31 is deformed in the thickness direction. Since the dirt 37 adheres to the surface of the base material of the filter 31, a gap is generated between the filter 31 and the dirt 37 due to this deformation, and the dirt is peeled off. Further, the peeling dirt 38 on the filter 31 in the peeled state is shaken off as the contact portion moves.

  In order to rotate the filter contact portion 33 of the filter holding means in response to the rotation of the filter 31, for example, a gear is provided in the filter holding portion 35 provided outside the filter 31, and the filter contact portion 33 is also provided. The filter contact portion 33 can be driven and rotated by providing gears and engaging them. Or you may provide an unevenness | corrugation in the surface of a filter or at least one surface of the filter contact part 33. FIG. When these mesh with each other, a driven rotation occurs. That is, the filter 31 and the filter contact part 33 play a role of a gear with each other.

  By making the filter 31 having resilience substantially cylindrical, cleaning can be repeated in a constant space, so that the filter cleaning can be performed in a compact manner. Furthermore, the hollow portion of the filter 31 is used. In addition, since the filter contact portion 33 and the filter holding portion 35 can be provided, it is possible to perform filter cleaning that is compact and has high cleaning efficiency.

(Embodiment 4)
The same parts as those in any of Embodiments 1 to 3 are denoted by the same reference numerals, and detailed description thereof is omitted. As shown in FIG. 6, a water storage tank 42 is provided below the hollow cylindrical filter 41 that rotates. The positional relationship between the filter 41 and the water storage tank 42 is the position (A) when the normal filter is used, but when the filter is cleaned, the water storage tank in which the water is arranged rises as shown in FIG. Soak in water. Filter holding means is provided on the bottom surface of the water storage tank 42, and the filter contact portion 43 of the filter pressing means contacts the filter 41 at the same time as the water storage tank rises. Further, the bottom surface of the water storage tank 42 is curved, and among the water containing dirt after cleaning, a soil component having a large specific gravity sinks to the bottom of the water storage tank 42, and a drain outlet 44 is provided at the deepest part of the bottom surface. Provided.

  If the filter holding means is provided on the bottom surface of the water storage tank 42 and the water storage tank 42 is raised, the action of attaching water to the filter 41 and the action of bringing the filter contact portion 43 into contact with the lower part of the rotating shaft 45 of the filter 41 Can be satisfied at the same time. By bringing the filter contact portion 43 into contact with the lower part of the rotation shaft 45 of the filter 41, it is possible to prevent the peeling dirt from dropping from the filter 41 and adhering to the filter 41 again.

  Even if it is a type of filter that does not allow water to adhere to it during normal use, it can be moistened and prevented from rising off by attaching water during cleaning, and at the same time it can be washed away. A higher cleaning effect can be obtained. Examples of the type of filter include a dust collection filter for air purification, a deodorization filter, an insect filter, a humidification filter for humidity control, and a dehumidification filter. As the shape of the filter that is easy to rotate, there are a hollow cylindrical shape, a non-hollow cylindrical shape, a caterpillar shape as shown in FIG. 1, a disk shape as shown in FIG. As a method for adhering water to the filter, there are methods such as immersing the filter in water storage or applying water pumped up by a pump or a ladle to the filter. For example, in the disk-shaped filter 41 as shown in FIG. 7, water can be supplied to the filter 41 by pumping water from the water storage tank 42 by a ladle 46 disposed around the filter 41. Further, the filter contact portion 43 in FIG. 7 is substantially spherical, and freely rotates in accordance with the operation of the support portion 47.

  By cleaning, water containing dirt is collected in the water storage tank 42. At this time, by inclining the bottom surface of the water storage tank 42, dirt components can be collected in one place. Further, if a drainage port 44 is provided at the deepest part of the bottom surface, the dirt component is left if necessary. It is also possible to obtain an effect that only the waste can be easily discarded. By providing this drain outlet 44 below the filter contact portion 43, an effect is obtained that the peeling dirt can be submerged in the deepest portion without spreading into the water storage tank 42.

  As the shape of the bottom surface of the water storage tank 42, the same effect can be obtained even in a mortar shape or a flat surface having a slope, in addition to being curved. Furthermore, when a part of the filter 41 is immersed in the water storage tank 42, water can be used repeatedly, so that a water saving effect can be obtained.

  By applying vibration to the filter 41 during cleaning of the filter 41, it is possible to obtain an effect that even dirt attached to the filter 41 can be removed. As a method of applying vibration to the filter 41, for example, it can be obtained by increasing the intermittent contact speed of the filter contact portion 43 or providing an ultrasonic vibrator on the bottom surface of the water storage tank 42.

  Further, when cleaning the filter 41, the filter 41 may be sterilized and disinfected at the same time. As a method for sterilizing and disinfecting the filter 41, there are a method of mixing the water storage tank 42 with a disinfectant and a detergent and cleaning or heat sterilizing the filter 41. By making the part 43 into, for example, a rod-shaped heater, cleaning and heat sterilization can be performed simultaneously.

(Embodiment 5)
The same parts as those in any of Embodiments 1 to 4 are denoted by the same reference numerals, and detailed description thereof is omitted. As shown in FIG. 8, the humidifier 51 includes a main body case 52, a not-shown air blowing means, a repulsive humidifying filter 53, a water storage tank 54 and a water storage tray 55 as water supply means to the humidifying filter 53. Prepare. The humidifying filter 53 has a hollow cylindrical shape, and rotates with the central axis of the cylinder as a rotation axis while immersing the lower part in the water storage tray 55 during cleaning. A drain tray 56 is further provided below the water storage tray 55.

  With the above configuration, it is possible to remove the evaporation residue adhering to the surface of the humidifying filter 53, and to prevent the deterioration of the humidifying performance due to clogging. It is possible to humidify even if the user does not care for a long period of time. The performance as a device can be sufficiently exhibited.

  As the humidifying filter 53 having resilience, one having further water resistance is preferable. For example, urethane foam or a three-dimensional knitted fabric made of resin fibers can be used as the base material.

  When the humidifying filter 53 is cleaned, the humidifying filter 53 rotates while immersing at least a part of the humidifying filter 53 in the water in the water storage tray, so that washing can be repeated while washing away the dirt removed on the surface of the humidifying filter 53 with water. An effect is obtained. If the humidifying filter 53 is simply cleaned by this cleaning method, the peeled dirt remains on the surface. Therefore, the user either performs rinsing himself or cleans the surface of the humidifying filter 53 by another dirt removing means. Otherwise, when the humidifier is restarted, it may peel off from the humidifying filter 53, but dirt remaining on the surface may be ejected, which is not clean. The most efficient way to reduce user effort or to simplify the apparatus is to wash away dirt remaining on the humidifying filter surface with a water storage tray.

  In addition, after the humidifying filter 53 is cleaned, it is preferable to flow the accumulated water in the drain tray 56. The effect that the dirt peeled off from the humidifying filter 53 is discharged and the humidifying filter 53 can be kept clean without leaving any dirt is obtained. Alternatively, in the case where the drain tray 56 is not provided, the same effect can be obtained by a method in which the stored water in which the dirt is stored is returned to the water storage tank 54 as a water supply means and collected using a pump or the like. Further, if the collected water is dried by blowing air and the dirt is forcibly solidified, it becomes easier to dispose of the water, and it is possible to suppress the decay of moisture and the propagation of germs.

  As a method of draining, for example, an electromagnetic valve is provided at the connection between the water storage tray 55 and the drain tray 56, and if it is detected that all the water has been moved to the drain tray 56 and the valve is closed, dirty water is stored in the water. There is no backflow. By supplying new water from the water storage tank 54 to the water storage tray 55, the humidification operation can be resumed immediately, and the humidification filter 53 can be rinsed.

  In addition, after the humidifying filter 53 is cleaned, the humidifying filter 53 may be dried by operating the air blowing means. For example, after all the stored water has been drained or by blowing air while the humidifying filter 53 is separated from the stored water, it is possible to suppress the growth of bacteria and fungi in the humidifying filter 53 and keep the humidifying filter 53 clean. The effect of being able to be obtained.

  Further, while the humidifying filter 53 is being cleaned, a display showing the state of the humidifying filter 53 allows the user to grasp the state and feel that it is being cleaned. For example, the user can easily recognize if the lamp is turned on and the status is displayed at the same time as the cleaning is started.

Using the humidifier shown in Embodiment 5, the effect of removing dirt adhered on the humidifying filter was confirmed. As the humidifying filter having resilience, a three-dimensional polyester knitted fabric was rounded and formed into a hollow cylindrical shape having a thickness of 1.5 cm, and a support portion for the filter pressing means was provided in the hollow portion of the filter. The humidification filter was rotated at 1.5 rpm, and the water depth at this time was 1.5 cm, that is, the depth at which the lowermost part of the humidification filter was accommodated in water. Three humidifiers were prepared, and each tank was humidified according to the following conditions while supplying hard water having a hardness of 1000 ppm to a 4 L water storage tank.
(1) No cleaning is performed (2) Humidification operation is stopped once a week and the filter cleaning method of the present invention is performed (3) The filter pressing means is always brought into contact with the filter, and the filter is deformed. FIG. 7 shows the result of continuous humidification operation. The horizontal axis represents the number of water supply to the water storage tank, and the vertical axis represents the amount of dirt attached. Once in a week, the humidification operation was stopped and the filter was cleaned (2). With the filter cleaning, about 80% of the adhered dirt was removed each time, and the filter was not cleaned (1). In comparison, the adhesion speed of dirt could be delayed by about 70%. Further, in the case (3) in which the filter pressing means was always brought into contact with the filter, the dirt adhesion speed could be delayed by about 20% compared to the case (1) in which cleaning was not performed.

  As a result of continuing the above, when the number of times of water supply to the water storage tank reaches 20, the amount of dirt adhering to the humidifying filter is (1) 36.1 g, (2) 20.8 g, (3) 28 And the superiority of the present invention (2) and (3) was confirmed. Furthermore, it was also confirmed that the filter holding means (2), which is in contact with the filter only during cleaning, is still superior to the filter holding means (3), which is always in contact with the filter.

  This makes it possible to remove dirt attached to the surface of the filter in a simple and compact manner by using this filter cleaning method for equipment that has been difficult to maintain without the user's own cleaning. Therefore, it was possible to clean while suppressing deterioration without causing friction as much as possible, and it became possible to greatly reduce the labor of the user.

  The filter cleaning method according to the present invention can provide a sufficient dirt removing effect even if it is simple and compact, and can be cleaned while suppressing deterioration of the filter without causing friction as much as possible. Since the original performance can be maintained, it is also useful for use in equipment using a filter to which dirt adheres, such as a humidifier, an air purifier, an air conditioner, and a vacuum cleaner.

DESCRIPTION OF SYMBOLS 11 Filter 12 Shaft 13 Flat plate 14 Support part 15 Filter pressing means 16 Drive means 21 Filter 22 Filter contact part 23 Vertical operation rod 24 Filter holding part 25 Support part 26 Gear-shaped unevenness 31 Filter 32 Central axis 33 Filter contact part 34 Support part 35 Filter holding part 36 Disinfectant storage case 37 Dirt 38 Peeling dirt 41 Filter 42 Water tank 43 Filter contact part 44 Drain port 45 Rotating shaft 46 Ladle 47 Support part 51 Humidifier 52 Main body case 53 Humidity filter 54 Water tank 55 Water storage tray 56 Drain tray 101 Cleaning device 102 Housing 103 Brush 104 Dust box 105 Lid 106 Dust scraping device 201 Filter cleaning means 202 Filter 203 Suction duct 204 Belt connecting portion 205 Dust box

Claims (3)

The filter holding means having a filter contact portion that contacts the repulsive filter to deform the filter and a support portion that supports the contact portion are brought into contact with each other, and the contact surface between the filter and the filter contact portion is moved. cleaning of the filter, characterized in that to clean the filter the dirt adhered is peeled removed to the surface by repeating the deformation and subsequent recovery of the thickness of the filter by the pressure of the filter contact portion while. In a humidifying device comprising at least a main body case, a humidifying filter having resilience in the main body case, a blowing means for sending air to the humidifying filter, and a water supply means to the humidifying filter. A humidifying device for cleaning a humidifying filter by the filter cleaning method according to Item 1 . At least a main body case, a dust collection filter, a humidification filter, a blowing means for sending air to the dust collection filter and the humidification filter, and a water supply means to the humidification filter are provided in the main body case. An air cleaning apparatus, wherein the dust collection filter and / or the humidification filter are cleaned by the filter cleaning method according to claim 1 .

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