JP2009024978A - Humidifying device and filter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a humidifying device capable of improving humidifying efficiency by efficiently absorbing water by the discoid filter, and to provide a filter. <P>SOLUTION: This filter 11 is composed of a discoid filter body 2, and a frame body 4 holding the filter body 2, and its water absorbing direction for most easily absorbing water, is determined radially along the radial direction of the filter body 2. Thus water can be efficiently absorbed from an outer peripheral portion to a central portion of the filter 11 immersed in a water tank 13 at any position of the outer peripheral portion of the filter 11 with respect to the radial direction of the filter body 2. Air passing through the filter 11 efficiently absorbs humidity, and the humidified air is distributed to the outside of the device, by sending air to the filter 11 by an air blower while rotating the filter 11 in the circumferential direction. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a vaporizing humidifier equipped with a disk-shaped filter, and a filter provided in the humidifier.

The vaporization type humidifier is provided with a filter having water absorption and air permeability, and is absorbed by the filter by blowing air outside the device (for example, the room where the humidifier is installed) to the absorbed filter. The water containing the evaporated water (that is, humidified air) is blown to the outside of the apparatus (see Patent Documents 1 to 5).
In general, a filter uses a filter main body having water absorption and air permeability and a frame body that holds the filter main body, and is formed in a rectangular shape, a cylindrical shape, a disc shape, etc., and the filter itself is submerged. Absorb water or absorb water by spraying the filter. Hereinafter, a humidifier that absorbs water when the filter itself is submerged will be described.

8 and 9 are a front view and a side view of a filter provided in a conventional humidifier, and FIG. 10 is a plan view of a filter main body of the filter.
In the figure, reference numeral 91 denotes a filter, and the filter 91 has a rectangular shape using a filter main body 911 having water absorption and air permeability and a frame (not shown) that holds the filter main body 911.

  The filter body 911 of the filter 91 is formed by pleating a polyethylene sheet-like filter material having water absorption and air permeability, and the longitudinal direction of the pleat is the water absorption direction in which the filter body 911 absorbs water most easily (hereinafter simply referred to as “filter body”). Equal to the direction of water absorption). Further, in order to keep the filter body 911 in shape, a plurality of adhering portions 91a, 91a,... In a front view shape are formed in the juxtaposing direction of the pleats. Each fixing portion 91a is a solidified glue made of synthetic resin, and functions to prevent the filter main body 911 from unnecessarily spreading in the juxtaposing direction of the pleats while keeping the separation distance between adjacent pleats constant.

The humidifier includes a water tank 7 for storing water, and the filter 91 is configured such that one end of the filter main body 911 in the water absorption direction faces downward and the one end (that is, the lower end of the filter 91) is submerged in the water tank 7. And placed in a vertical position. For this reason, the water absorption direction of the filter body 911 is arranged in the vertical direction, and the filter 91 easily absorbs water from the submerged lower end portion to the upper end portion (in the direction of the white arrow A91 in FIGS. 8 and 9). .
By sending air to the one surface side of such a filter 91 (in the direction of the white arrow W in FIG. 9) by a blower (not shown), the air that has passed through the filter 91 absorbs moisture, and the absorbed air is blown into the room. .

However, since the movement of water from the bottom to the top is mainly hindered by gravity, the filter 91 absorbs water sufficiently in the lower end portion and the vicinity of the lower end portion, but is farthest from the lower end portion. The upper end portion and the vicinity of the upper end portion tend to have insufficient water absorption.
As a result, the moisture content of the filter 91 varies greatly depending on the position in the vertical direction. Even if the air is uniformly blown to the lower and upper portions of the filter 91, the moisture absorption amount of the air passing through the lower portion and the moisture absorption amount of the air passing through the upper portion There is a big difference. That is, the humidification efficiency by the filter 91 is poor.

  In addition, when the filter body 911 is used for a long period of time, water-soluble impurities contained in the water absorbed by the filter body 911 are deposited and adhere mainly to the lower end portion of the filter body 911, and the upper end portion of the filter body 911 Further hinders the movement of water into the water.

In order to eliminate such an inconvenience, it is conceivable to rotate a disk-shaped filter in the circumferential direction as in a humidifier disclosed in Patent Document 1, for example.
11 and 12 are a front view and a side view of a filter provided in another conventional humidifier. FIG. 13 is a front view of the filter body of this filter.
In the figure, reference numeral 92 denotes a filter, and the filter 92 has a disk shape using a disk-shaped filter main body 921 having water absorption and air permeability and a frame body 922 that holds the filter main body 921.

The humidifier includes a water tank 7 for storing water, and the filter 92 includes a rotary shaft 80 arranged in a horizontal position in a state in which a part of the outer peripheral part is immersed in the water tank 7 in a vertical position. It is configured to be rotatable in the circumferential direction at the center. For this purpose, the humidifier includes a rotating roller 82 that rotates in contact with the outer peripheral surface of the frame body 922, a motor 81 that rotates the rotating roller 82, and a connecting shaft 83 that connects the motor 81 and the rotating roller 82. Prepare.
As indicated by the arrows in FIG. 11, the filter 92 rotates with the rotation of the rotating roller 82, and the outer periphery of the filter 92 is continuously immersed in the circumferential direction with this rotation. The part absorbs water uniformly.

For this reason, the water content of the filter 92 is not significantly different between its upper part and lower part. That is, the humidification efficiency by the filter 92 is improved compared to the humidification efficiency by the filter 91. Further, even if the filter main body 921 is used for a long period of time, impurities are not intensively attached to only a part of the outer peripheral portion, so that the water absorption rate of the outer peripheral portion does not vary greatly in the circumferential direction.
When air is blown by a blower (not shown) to one surface side of such a filter 92 (in the direction of the white arrow W in FIG. 12), the air that has passed through the filter 92 absorbs moisture, and the absorbed air is blown into the room. .

By the way, the filter main body 921 of the filter 92 is formed by laminating plate-like members 92a, 92a,..., Which are flat plates or corrugated plates made of polyethylene honeycomb structure material, and bonding the contact surfaces. However, the thickness direction of each plate-like member 92 a is arranged in the radial direction of the filter main body 921, and the surface direction of the plate-like member 92 a is arranged in the circumferential direction of the filter main body 921. That is, the filter main body 921 has a structure in which the plate-like members 92 a, 92 a,... Are wound in the circumferential direction of the rotary shaft portion 80. The filter main body 921 may have a configuration in which one long plate-like member 92a is wound in a spiral shape.
Japanese Utility Model Publication No. 54-172568 JP 2000-74429 A JP 2003-302077 A JP 2005-37076 A JP 2003-130403 A

Here, the plate-like member 92a itself easily absorbs water both in the surface direction and in the thickness direction. However, the laminated plate-like members 92a and 92a are separated by air and / or an adhesive, albeit slightly. Therefore, the water absorption in the laminating direction of the plate members 92a, 92a,... Is lower than the water absorption in the surface direction of each plate member 92a in the filter main body 921. In other words, the filter main body 921 has high water absorption in the circumferential direction (indicated by the white arrow in FIG. 13) but low water absorption in the radial direction.
For this reason, the filter 92 has low water absorption in the upward direction (in the direction of the dashed white arrow A92 in FIGS. 11 and 12). As a result, the outer periphery of the filter 92 sufficiently absorbs water, but from the outer periphery. The most distant center part (ie, the vicinity of the rotary shaft part 80) tends to have a shortage of water absorption.

  The present invention has been made in view of such circumstances, and its main purpose is that the filter is provided with a disk-shaped filter body in which the water absorption direction is arranged along at least one radial direction. It is providing the humidification apparatus and filter which can improve the water absorption of the center part of a filter.

  Another object of the present invention is to provide the filter with a disk-shaped filter body in which the water absorption direction is arranged radially, so that the water absorption efficiency from the outer peripheral portion of the filter to the central portion is extended over the entire circumferential direction. It is providing the humidification apparatus which can be improved.

  Another object of the present invention is to provide a humidifier capable of radially arranging the longitudinal direction of pleats having high water absorption efficiency by spreading a rectangular member formed by pleating a filter material into a fan shape. There is to do.

  Another object of the present invention is to provide a humidifier that can improve the overall water absorption of the filter by providing the filter with a disc-shaped filter body in which the water absorption direction is arranged in parallel lines. It is to provide.

  Still another object of the present invention is to arrange the longitudinal direction of pleats having high water absorption efficiency in parallel lines by forming a through hole in a circular member formed by pleating and retaining a filter material. It is to provide a humidifying device capable of performing the above.

  A humidifier according to the present invention includes a disc-shaped filter main body having water absorption and air permeability, a disc-shaped filter using a frame body that holds the filter main body, and the filter arranged in a horizontal posture. A rotation drive mechanism for rotating around the rotation shaft, a water tank for storing water, and a blower for blowing air in a direction intersecting the filter with respect to the filter, the filter being arranged in a vertical posture In the humidifying device in which a part of the outer peripheral portion of the filter can be submerged in the water tank, the filter body has a water absorption direction that absorbs water most easily along at least one radial direction. It is characterized by.

  The humidifier according to the present invention is characterized in that the filter main body is radially arranged with the water absorption direction of the filter main body.

  In the humidifying device according to the present invention, the filter main body is formed by spreading a sheet-shaped filter material having water absorption and air permeability into a rectangular shape by spreading the member into a fan shape in the parallel arrangement direction of the pleats. It is characterized by being arranged in a circular shape around the shaft portion.

  The humidifier according to the present invention is characterized in that the filter main body is arranged such that the water absorption direction of the filter main body is parallel.

  In the humidifying device according to the present invention, the filter main body has an insertion hole through which the rotating shaft portion is inserted into a member that is formed by pleating a sheet-like filter material having water absorption and air permeability and retaining a circular shape. It is formed.

  The filter according to the present invention is a disc-shaped filter comprising a disc-shaped filter body having water absorption and air permeability and a frame body that holds the filter body, wherein the filter body has at least one radial direction. The water absorption direction that absorbs water most easily is arranged along.

In the present invention, the water absorption direction in which the filter body absorbs water most easily is arranged along at least one radial direction of the disk-shaped filter body having water absorption and air permeability.
The humidifier includes a filter, a rotation drive mechanism, a water tank, and a blower. The filter has a disk shape and uses the above-described filter body and a frame body that holds the filter body.
The filter is arranged in a vertical posture, and a part of the outer periphery of the filter can be submerged in a water tank for storing water. Further, the rotation drive mechanism rotates the filter around the rotating shaft portion arranged in the horizontal posture, and the blower blows air to the filter in a direction crossing the filter.

Since the water absorption direction in which the filter body absorbs water most easily is along at least one radial direction of the filter body, water is efficiently absorbed from the outer peripheral portion of the submerged filter to the center portion, The water absorption amount at the center of the filter is improved, and the water content at the outer periphery and the water content at the center are not significantly different from each other.
By blowing air to such a filter with a blower, the air that has passed through the filter efficiently absorbs moisture, and the absorbed air is blown to the outside of the apparatus.

In the present invention, the water absorption directions of the filter main body that absorb water most easily are arranged radially. That is, the water absorption direction is arranged radially along the radial direction of the disk-shaped filter body.
For this reason, with respect to the radial direction of the filter body, water is efficiently absorbed from the outer peripheral portion of the submerged filter to the central portion, the water absorption amount of the central portion of the filter is improved, and the moisture content and the central portion of the outer peripheral portion are improved. The moisture content is uniformized without significantly differing from the moisture content of each of the outer peripheral portions and without significantly differing in the moisture content of each portion in the circumferential direction of the outer peripheral portion.
That is, the water absorption efficiency from the outer peripheral part of the filter to the central part can be improved over the entire circumferential direction.

  In addition, since any portion of the outer peripheral portion in the circumferential direction is submerged, water is efficiently absorbed, so the time for water to reach the entire filter is short (that is, the water absorption speed is fast). As a result, the absorption efficiency of the entire filter is also improved.

In the present invention, in order to obtain a disk-shaped filter body in which the water absorption direction is radially arranged along the radial direction, first, a sheet-like filter material having water absorption and air permeability is prepared, A member formed into a rectangular shape by pleating a filter material is spread in a fan shape in the direction in which the pleats are arranged side by side, and is arranged in a circle around the rotating shaft portion.
Such a filter main body has a simple process of processing the filter material into the filter main body, and is low in cost because the required amount of the filter material is small.

In the present invention, the water absorption direction of the filter body that absorbs water most easily is arranged in parallel lines. That is, the water absorption direction is arranged in parallel lines along one radial direction of the disk-shaped filter body.
For this reason, with respect to this radial direction, water is efficiently absorbed from the outer peripheral portion of the submerged filter to the central portion, the water absorption amount at the central portion of the filter is improved, the moisture content of the outer peripheral portion, and the water content of the central portion. The water content of each part in the circumferential direction of the outer peripheral portion is made uniform without significantly different from the rate.
However, compared with the water absorption rate in the radial direction, the absorption rate in the direction intersecting with the radial direction (that is, other radial directions) is low.

By the way, if the density of a filter main body is made high (or low), water absorption (or ventilation) will improve, but ventilation (or water absorption) will deteriorate.
Here, the filter body in which the water absorption direction is arranged in parallel lines can easily equalize the density of the central part of the filter body and the density of the outer peripheral part of the filter body, without sacrificing ventilation, It becomes possible for the filter body to have a necessary and sufficient density as a whole. As a result, there are inconveniences associated with the deterioration of ventilation (specifically, the air blowing speed that has passed through the filter body is excessively reduced, and the noise generated when passing through the filter body is increased). The overall water absorption of the filter can be improved while keeping it to a minimum.

  On the other hand, the filter body in which the water absorption direction is arranged radially tends to have a lower density at the outer peripheral part than the density at the central part. If the density increases too much, the air permeability is sacrificed. If the density in the central portion is reduced to increase the air permeability, the density in the outer peripheral portion is reduced too much and the water absorption is sacrificed.

In the present invention, in order to obtain a disk-shaped filter body in which the water absorption direction is arranged in parallel lines along one radial direction, first, a sheet-like filter material having water absorption and air permeability is provided. An insertion hole through which the rotary shaft portion is inserted is formed in a member prepared and pleated on the filter material and held in a circular shape.
Since such a filter main body is preliminarily shaped, it can be easily attached to the frame. In addition, the process of processing the filter material is simple so that the density of the center portion of the filter body and the density of the outer periphery portion of the filter body are made uniform.

In the case of the humidifying device and the filter according to the present invention, the water absorption amount at the center of the filter can be improved, so that each of the outer periphery and the center of the filter can sufficiently absorb water. That is, since the entire disk-shaped filter can absorb water efficiently, the humidification efficiency can be improved.
In addition, by using the filter body for a long period of time, even if impurities dissolved in the water absorbed by the filter body are deposited on the filter body, they are not concentrated only on a part of the outer peripheral portion of the filter body. Therefore, the moisture content of each part in the circumferential direction of the outer peripheral part can be made uniform.

  Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments thereof.

Embodiment 1.
1 and 2 are a front view and a side view showing a filter provided in the humidifier according to Embodiment 1 of the present invention. FIG. 3 is a front view showing the filter body of the filter, and FIG. 4 is an explanatory view showing a method for manufacturing the filter body.
In FIG. 1, reference numeral 1 denotes a humidifier, and the humidifier 1 includes a disk-shaped filter 11, a rotation drive mechanism 12, a water tank 13, and a blower 14 inside the housing 10, as shown in FIGS.

The casing 10 has a vertical rectangular parallelepiped shape standing on the floor, and has an intake port on the back, an exhaust port on the top, and a connection between the intake port and the exhaust port. The filter 11, the rotation drive mechanism 12, the water tank 13, and the air blower 14 are arranged in the middle of this ventilation path.
The water tank 13 is provided in the bottom part of the housing | casing 10, is a tray shape which the upper part opened, and stores the water supplied from the water supply tank which is not shown in figure. This water supply tank is configured to automatically supply water to the water tank 13 in order to maintain a predetermined water level in the water tank 13.

The filter 11 has a disk shape, and includes a polyethylene filter main body 2 having water absorption and air permeability, and a synthetic resin frame 4 that holds the filter main body 2. As shown in FIGS. 1 to 3, the filter main body 2 has a disk shape with an appropriate thickness, and a circular insertion hole 2 a is formed at the center position.
The frame 4 is provided with a columnar rotating shaft 40 that is inserted through the insertion hole 2 a perpendicular to the filter body 2, and the filter 11 has a part of the outer periphery of the filter 11 in the water tank 13. It is placed in a vertical position so that it can be submerged. Therefore, the rotating shaft part 40 is arranged in a horizontal posture. Here, the rotation shaft portion 40 is rotatably supported by a bearing provided on a support portion (not shown) that is erected on the inner surface of the bottom portion of the housing 10, and as a result, the filter 11 is centered on the rotation shaft portion 40. Are supported rotatably in the circumferential direction.

  The frame 4 is configured so that it can be easily assembled and dismantled manually by a manufacturing operator or a user of the humidifying apparatus 1. For this reason, the manufacturing operator or the user can manually perform disassembly. The filter body 2 can be easily attached to or removed from the frame body 4.

For example, as shown in FIGS. 1 and 2, the frame body 4 includes a rotation shaft portion 40, a first frame 41, and a second frame 42. Each of the first frame 41 and the second frame 42 has a circular dish shape in which four fan-shaped water passage holes 4a, 4a,... Are formed point-symmetrically on the bottom surface. The filter body 2 is held by covering one surface of the filter body 2 and the outer peripheral surface of the filter body 2, and the bottom surface and side surfaces of the second frame 42 covering the other surface of the filter body 2 and the outside of the side surfaces of the first frame 41.
The rotation shaft portion 40 protrudes perpendicularly to the center position of the bottom surface of the first frame 41, and the rotation shaft portion 40 is fitted into the center position of the bottom surface of the second frame 42 and is fixed by frictional force. A circular hole is formed. That is, the frame 4 is assembled by covering the first frame 41 with the second frame 42 while fitting the rotary shaft portion 40 into the circular hole.

The rotation drive mechanism 12 includes an electric motor 121, a rotation roller 122, and a connecting shaft portion 123. The output shaft portion of the motor 121 and the rotation shaft portion of the rotating roller 122 are connected via a connecting shaft portion 123. When the motor 121 is operated, the rotating roller 122 moves in the direction of arrow A12 in FIG. Around).
The rotating roller 122 is arranged so that the peripheral surface of the rotating roller 122 is in contact with the top of the outer peripheral surface of the filter 11, and the rotating shaft portion 40 and the rotating shaft portion of the rotating roller 122 are arranged in parallel to each other. ing.
For this reason, when the rotating roller 122 is rotated by the operation of the motor 121, the filter 11 rotates in the direction of the arrow A11 in FIG. 1 (counterclockwise in FIG. 1) as the rotating roller 122 rotates.

  By the way, the filter main body with which the humidifier which concerns on this invention is equipped is arranged with the water absorption direction in which a filter main body absorbs water most easily along at least one radial direction of a filter main body, as shown in FIGS. In addition, the filter main body 2 provided in the humidifying device 1 according to the present embodiment has water absorption directions arranged radially along the radial direction of the filter main body 2. Here, white arrows shown in FIG. 3 schematically indicate the water absorption direction of the filter body 2.

  In order to obtain such a filter main body 2, a manufacturing operator first prepares a polyethylene sheet-like filter material (for example, non-woven fabric) having water absorption and air permeability, and then, as shown in FIG. In addition, a rectangular member 20 formed into a rectangular shape by pleating the filter material is obtained. Here, the pleats formed on the rectangular member 20 are arranged such that the longitudinal directions of the pleats are parallel to each other, and the juxtaposing direction of the pleats is equal to the longitudinal direction of the rectangular member 20.

Further, as shown in FIG. 4 (b), the user widens the rectangular member 20 in a fan shape in the parallel arrangement direction of the pleats so that the pitch of the pleats becomes constant (that is, the arrow direction in FIG. 4 (b)). To spread). In this case, one end side in the short direction of the rectangular member 20 is expanded in the longitudinal direction to lower the filter density, and the other end side in the short direction is narrowed in the longitudinal direction to increase the filter density.
Finally, the user obtains the filter main body 2 by arranging the rectangular member 20 expanded like a fan in a circular shape along the outer peripheral surface of the rotating shaft 40.
The water absorption direction of the filter body 2 formed as described above is equal to the longitudinal direction of the pleats. That is, the water absorption direction of the filter body 2 is arranged radially along the radial direction of the filter body 2.

  When such a filter main body 2 is used, water flows in the radial direction (in this case, the white arrow A2 direction shown in FIGS. 1 and 2) from the outer peripheral portion of the submerged filter 11 to the central portion due to capillary action. It is efficiently absorbed, and the amount of water absorption at the center portion of the filter 11 (that is, near the rotating shaft portion 40) is improved. For this reason, the moisture content in the outer peripheral portion and the moisture content in the central portion are not significantly different, and the moisture content in each portion in the circumferential direction of the outer peripheral portion of the rotating filter 11 is equalized without being significantly different. . That is, the water absorption efficiency in the radial direction from the outer peripheral portion to the center portion of the filter 11 is improved over the entire circumferential direction.

In addition, the filter body 2 has a lower filter density than the center part of the filter body 2 and can absorb water efficiently even if any part of the outer periphery of the filter 11 is submerged. Quickly, sufficient water is retained in the center of the filter body 2 having a high filter density.
Moreover, even if water-soluble impurities contained in the water absorbed by the filter body 2 are deposited, the deposited impurities are not concentrated on only a part of the outer peripheral portion of the filter body 2, and therefore, The water absorption rate does not change greatly in the circumferential direction.
Furthermore, the filter body 2 is low in cost because the process of processing the filter material into the rectangular member 20 is simple and the required amount of filter material to be the filter body 2 is small.

  However, the filter body 2 has a problem that it is difficult to keep the pitch of the pleats constant when the user arranges the rectangular member 20 on the frame body 4. If the pitch of the pleats is significantly non-uniform, water absorption unevenness occurs in the circumferential direction of the filter body 2.

  In order to solve such a problem, as shown in FIG. 3, a filter main body 2 that is preliminarily shaped in a state where the rectangular member 20 is expanded in a circular shape may be provided to the user. In this case, one fixing portion 2b having a front view shape is formed in a circular shape at an appropriate position in the radial direction of the filter body 2. The fixing part 2b is a solidified paste made of synthetic resin, and functions to keep the pitch of the pleats constant and prevent the filter body 2 from being out of shape. The user inserts the rotary shaft 40 inside the first frame 41 into the insertion hole 2a of the filter main body 2 that is shaped, and then puts the second frame 42 into the first frame 41 so as to sandwich the filter main body 2 therebetween. Install.

  By the way, the blower 14 uses a sirocco fan, sucks air with low humidity from the intake port of the housing 10, and in a direction perpendicular to the filter 11 (that is, a white arrow in FIG. 2). Air is blown in the W direction. When the blown air passes through the filter 11, the water absorbed by the filter body 2 is vaporized, and the vaporized water is included in the air that has passed through the filter 11 (that is, the air is humidified by water vapor). . The air whose humidity has been increased in this manner passes through the ventilation path in the housing 10 and is discharged from the exhaust port of the housing 10 into the room where the humidifier 1 is installed.

  The humidifying device 1 as described above is suitable when the motor 121 is operated to rotate the rotating roller 122, and thus the filter 11 including the filter body 2 is relatively slowly rotated. Improve the humidification efficiency by improving.

Embodiment 2. FIG.
5 and 6 are a front view and a side view showing a filter provided in the humidifying device according to Embodiment 2 of the present invention. FIG. 7 is a front view showing the filter main body of the filter, and is also an explanatory view showing a method for manufacturing the filter main body.
In the figure, reference numeral 1 denotes a humidifying device, and the humidifying device 1 has substantially the same configuration as the humidifying device 1 of the first embodiment, but the filter 11 of the present embodiment has a filter main body 3 instead of the filter main body 2. I have.
Other parts corresponding to those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  The filter body 3 has a disk shape made of polyethylene having water absorption and air permeability, and a circular insertion hole 3a is formed at the center position. The size of the filter body 3 (for example, the outer diameter and thickness of the filter body 3, the outer diameter of the insertion hole 3a, etc.) is equal to the size of the filter body 2 of the first embodiment. For this reason, the manufacturing worker or the user of the humidifying device 1 can manually attach and remove the filter body 3 to the frame body 4 by hand, and the rotating shaft portion 40 is attached to the filter body 3. It is orthogonally inserted through the insertion hole 3a.

The filter main body provided in the humidifier according to the present invention has a water absorption direction (hereinafter referred to as a maximum water absorption direction) in which the filter main body absorbs water most easily along at least one radial direction of the filter main body. Hereinafter, the direction in which the water absorption of the filter body is most difficult is referred to as the most difficult water absorption direction. Here, white arrows shown in FIG. 7 schematically indicate the most water-absorbing direction of the filter body 3, and the arrow direction schematically indicates the most difficult water-absorbing direction of the filter body 3.
As shown in FIGS. 5-7, the filter main body 3 with which the humidification apparatus 1 in this Embodiment is provided is arranged with the maximum water absorption direction in the shape of a parallel line along one radial direction of the filter main body 3. As shown in FIG. The most difficult water absorption direction is arranged in parallel lines along a direction orthogonal to the maximum capacity water absorption direction (that is, another radial direction of the filter body 3).

In order to obtain such a filter body 3, a manufacturing operator first prepares a sheet-like filter material made of polyethylene having water absorbability and air permeability, and then, as shown by a two-dot chain line in FIG. A plate member 30 formed into a plate shape by pleating and retaining the filter material is obtained. The pleats formed on the plate-like member 30 are arranged such that the longitudinal directions of the pleats are parallel to each other.
Here, the shape-retaining process is to form a plurality of adhering portions 3b, 3b,... In a front view on the pleated filter material in the direction in which the pleats are juxtaposed. Each fixing portion 3b is a solidified glue made of a synthetic resin, and functions to keep the pitch of the pleats constant and prevent the plate-like member 30 from unnecessarily spreading in the direction in which the pleats are juxtaposed.

  By the way, generally a filter main body raises the density of a filter main body, and the water absorption amount improves by making thickness thick, and humidification efficiency improves. On the other hand, reducing the density of the filter main body and reducing the thickness reduces the air resistance, thereby suppressing a decrease in the blowing speed of the air that has passed through the filter main body and further suppressing an increase in noise. In view of the above circumstances, the plate-like member 30 that is the material of the filter body 3 is formed to have an appropriate density and thickness.

The manufacturing operator who has obtained the plate-like member 30 forms the plate-like member 30 into a disk shape of a desired size by pressing, laser processing, or the like, and the center position of the plate-like member 30 formed in the disk shape. The filter main body 3 is obtained by forming the insertion hole 3a.
Finally, the user inserts the rotary shaft 40 inside the first frame 41 into the insertion hole 3a of the filter body 3 that is shaped and holds the second frame 42 so as to sandwich the filter body 3 therebetween. 41 is attached.

The maximum water absorption direction of the filter body 3 formed in this way is equal to the longitudinal direction of the pleats. That is, the maximum water absorption direction of the filter body 3 is arranged in parallel lines along one radial direction of the filter body 3.
Further, the filter body 3 has a uniform filter density as a whole without distinguishing between the outer peripheral portion and the central portion. By the way, since the filter main body 2 of Embodiment 1 has a portion (specifically, a central portion) where the filter density is locally increased, it is necessary to keep the filter density of the rectangular member 20 low. Since such a portion does not exist with respect to the filter main body 3, it is possible to design the filter density of the plate-like member 30, that is, the filter density of the filter main body 3 as a high density as a whole.

When the filter main body 3 as described above is used, when the maximum water absorption direction is arranged in the vertical direction, the capillarity causes a radial direction from the outer peripheral portion to the central portion of the submerged filter 11 (in this case, FIG. Water is efficiently absorbed in the white arrow A3 direction shown in FIG. 6, and the amount of water absorption at the center portion of the filter 11 (that is, in the vicinity of the rotating shaft portion 40) is improved. For this reason, the moisture content of an outer peripheral part and the moisture content of a center part do not differ significantly.
On the other hand, when the hardest water absorption direction is arranged in the vertical direction, the water absorption efficiency decreases. However, the maximum water absorption direction is arranged in the vertical direction every half rotation (180 ° rotation) of the filter main body 3, and the filter main body 3 has a high filter density and therefore has a large amount of water retention. As a result, the overall water absorption efficiency of the filter body 3 is improved. Specifically, the water retention amount of the filter body 3 is about twice that of the filter body 2 of the first embodiment.

Moreover, even if water-soluble impurities contained in the water absorbed by the filter body 3 are deposited, the deposited impurities are not concentrated on only a part of the outer peripheral portion of the filter body 3, and therefore, The water absorption rate does not change greatly in the circumferential direction.
Furthermore, the filter main body 3 has a simple process of processing the filter material into the plate-like member 30, and the user can arrange the filter main body 3 on the frame 4 while keeping the pitch of the pleats uniform. It is simple.

  The humidifying device 1 as described above is suitable for the case where the motor 121 is operated to rotate the rotating roller 122 and the filter 11 including the filter body 3 relatively rapidly. Improve the humidification efficiency by improving.

  In addition, the structure of the humidification apparatus 1 is not limited to the structure of this Embodiment 1,2. For example, further transpiration in the filter 11 may be promoted by heating the air blown by the blower 14 on the upstream side of the filter 11, and the air sucked from the intake port on the upstream side of the blower 14. A filtering device for filtering and purifying may be disposed, and an ion generating element may be disposed in the vicinity of the exhaust port, and the generated positive ions and negative ions may be added to the discharged air. Further, the rotary shaft portion 40 may be provided separately from the frame body 4, and the filter 11 is rotated by connecting the motor to the rotary shaft portion 40 instead of the motor 121, the rotating roller 122 and the connecting shaft portion 123. You may provide the rotation drive mechanism 12 of a structure.

It is a front view which shows the filter with which the humidification apparatus which concerns on Embodiment 1 of this invention is provided. It is a side view which shows the filter with which the humidification apparatus which concerns on Embodiment 1 of this invention is provided. It is a front view which shows the filter main body of the filter with which the humidification apparatus which concerns on Embodiment 1 of this invention is provided. It is explanatory drawing which shows the manufacturing method of the filter main body with which the humidification apparatus which concerns on Embodiment 1 of this invention is provided. It is a front view which shows the filter with which the humidification apparatus which concerns on Embodiment 2 of this invention is provided. It is a side view which shows the filter with which the humidification apparatus which concerns on Embodiment 2 of this invention is provided. It is a front view which shows the filter main body of the filter with which the humidification apparatus which concerns on Embodiment 2 of this invention is provided. It is a front view of the filter with which the conventional humidification apparatus is provided. It is a side view of the filter with which the conventional humidification apparatus is provided. It is a top view of the filter main body of the filter with which the conventional humidification device is provided. It is a front view of a filter with which other conventional humidification devices are provided. It is a side view of the filter with which other conventional humidification devices are provided. It is a front view of the filter main body of the filter with which the other conventional humidification apparatus is provided.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Humidifier 11 Filter 12 Rotation drive mechanism 13 Water tank 14 Blower 2,3 Filter body 2a, 3a Insertion hole 4 Frame body 40 Rotating shaft part

Claims (6)

A disk-shaped filter body having water absorption and air permeability, and a disk-shaped filter using a frame body that holds the filter body;
A rotation drive mechanism for rotating the filter around a rotation shaft portion arranged in a lateral posture;
A water tank for storing water;
A fan that blows air in a direction crossing the filter with respect to the filter,
In the humidifying device in which the filter is arranged in a vertical posture, and a part of the outer peripheral portion of the filter can be submerged in the water tank,
The humidifying device according to claim 1, wherein the filter body has a water absorption direction that absorbs water most easily along at least one radial direction.   The humidifying device according to claim 1, wherein the filter main body is radially arranged in the water absorption direction of the filter main body.   The filter body is formed in a circular shape around the rotating shaft by spreading a sheet-shaped filter material having water absorption and air permeability into a rectangular shape by spreading a member in the shape of a rectangle in the parallel arrangement direction of the pleats. The humidifying device according to claim 2, wherein the humidifying device is provided.   The humidifying device according to claim 1, wherein the filter main body is arranged in parallel lines in the water absorption direction of the filter main body.   The filter body is characterized in that an insertion hole through which the rotating shaft portion is inserted is formed in a member obtained by pleating a sheet-like filter material having water absorption and air permeability and retaining a circular shape. The humidifying device according to claim 4. In a disk-shaped filter using a disk-shaped filter body having water absorption and air permeability, and a frame body that holds the filter body,
The filter main body is provided with a water absorption direction that absorbs water most easily along at least one radial direction.

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