JP5904819B2 - Filter and humidifier - Google Patents

Description

  The present invention relates to a water-absorbing and breathable filter, and a vaporizing humidifier equipped with the filter.

In recent years, humidification devices for giving appropriate humidity to indoor air have been widely used due to an increase in health orientation. In particular, a vaporizing humidifier that realizes humidification without heating and evaporation of water is capable of adjusting humidity without affecting the indoor temperature.
The vaporizing type humidifier includes a humidifying filter having water absorption and air permeability (see Patent Document 1).

The humidifying device described in Patent Literature 1 is configured to supply water to the humidifying filter by immersing a part of the peripheral edge of a disc-shaped humidifying filter arranged in a vertical posture in a water tank. The humidification filter is supported to be rotatable in the circumferential direction. The humidifier includes a rotation drive mechanism that rotates the humidification filter and a blower.
The humidifying filter during the humidifying operation is continuously rotated in the circumferential direction by operating the rotation driving mechanism. At this time, the peripheral portion of the humidifying filter continuously immerses and absorbs water in the circumferential direction, and further sucks water from the peripheral portion to the central portion. As a result of the above, water is efficiently distributed throughout the humidifying filter.

  In addition, during the humidification operation, the blower is operated, so that air outside the apparatus (for example, the room where the humidification apparatus is installed) is sucked into the apparatus, and the sucked air passes through the humidification filter. At this time, the water absorbed by the humidifying filter is vaporized, and then the air containing the vaporized water (that is, the moisture absorbed) blows out from the inside of the apparatus to the outside of the apparatus.

In addition to the humidifiers as described above, conventionally, a humidifier that irrigates a humidifier filter using a water wheel, a humidifier that supplies water pumped up by a water supply pump to the humidifier filter, and the like have been proposed.
Hereinafter, the windward (and leeward) surface of the humidifying filter is referred to as the windward surface (and the windward surface).

  Scale (scale) may adhere to the humidifying filter. The scale is a deposit of water-soluble impurities (for example, minerals such as calcium or magnesium) contained in the water absorbed by the humidifying filter. Even if it is divided, since the surface of the humidifying filter is more likely to vaporize water (that is, it is easy to dry) as compared with the inside of the humidifying filter, the scale is likely to deposit on the surface of the humidifying filter. When the humidifying filter is clogged by the attached scale, the water absorption and air permeability of the humidifying filter deteriorate. As a result, the humidification performance of the humidifier deteriorates.

  In order to eliminate such inconvenience, a humidifying filter in which a water retaining agent is supported on the wind surface has been proposed (see Patent Document 2). Generally, the wind surface of the humidifying filter is more likely to vaporize water (that is, it is easy to dry) than the wind surface, so that the scale is likely to deposit on the wind surface. However, when the water retaining agent is carried on the wind surface, drying of the wind surface is suppressed. As a result, the precipitation of scale on the wind surface can be suppressed.

JP 2009-085511 A JP 2011-196638 A JP 2008-116203 A

However, the humidification filter described in Patent Document 2 does not suppress the precipitation of scales other than the windward surface (for example, the windward surface). Therefore, the scale can also adhere to the humidifying filter.
The scale attached to the humidifying filter is difficult to remove. That is, the conventional humidification filter has poor maintainability. Therefore, the user of the humidifying device may replace the humidifying filter with the scale attached thereto with a new humidifying filter without removing the attached scale. As a result, the running cost of the humidifier increases.

  The present invention has been made in view of such circumstances, and a main object of the present invention is to maintain the cover member by covering at least a part of the filter member so that the filter member can absorb water and be detachable. An object of the present invention is to provide a filter capable of improving the performance and a humidifying device capable of reducing running costs.

The filter which concerns on this invention is a filter provided with the filter member which has water absorptivity and air permeability, has a water absorptivity, and is a cover member which covers at least one part of the said filter member so that water absorption is possible from the said filter member, and it can attach or detach. provided, the cover member and has high water absorption than the filter member, the filter cloth forming the cover member in order to increase the water absorption of the filter fabric, are coated with a material having a hydrophilic Rukoto It is characterized by.

  The filter according to the present invention is characterized in that the cover member has higher water permeability than the filter member.

  The filter according to the present invention is characterized in that the cover member has a quicker drying property than the filter member.

  The filter according to the present invention is characterized in that the cover member uses a net-like body, a three-dimensional knitted fabric, or a corrugated structure.

  The filter according to the present invention is characterized in that the cover member is made of cotton or rayon.

  In the filter according to the present invention, the cover member has air permeability and is laminated on the filter member, and the thickness of the cover member in the stacking direction is smaller than the thickness of the filter member in the stacking direction. Features.

  The filter according to the present invention is characterized in that a projected area in the stacking direction of the cover member is smaller than a projected area in the stacking direction of the filter member.

  In the filter according to the present invention, the filter member and the cover member each have a disk shape, and the radius of the cover member is smaller than the radius of the filter member.

  A humidifier according to the present invention includes the filter according to the present invention and a water supply unit for supplying water to the filter.

  A humidifier according to the present invention includes a blower, a suction port for sucking air from the outside by the blower, and a blower outlet for blowing the sucked air to the outside after passing through the filter And the filter is disposed so that the cover member is positioned upstream of the filter member in the ventilation direction of the air flowing through the ventilation path. Features.

  The humidifier according to the present invention is characterized in that the water supply section supplies water directly to at least a part of the filter member.

  In the humidifying device according to the present invention, the water supply unit uses a water tank, the filter member is partially water-immersable in the water tank, and the cover member is not water-immersible in the water tank. It is characterized by being.

In the present invention, the filter includes a filter member having water absorption and air permeability, and a cover member having water absorption. The humidifier according to the present invention includes the filter according to the present invention and a water supply unit.
The filter absorbs water supplied by the water supply unit. Specifically, the filter member and the cover member absorb water.
The air that has passed through the absorbed filter member absorbs moisture.
Hereinafter, the surface of the filter member that is not covered by the cover member is referred to as an exposed surface, and the covered surface is referred to as a non-exposed surface. Moreover, the surface which covers the filter member in a cover member is called inner surface, and the surface which does not cover is called outer surface.

The non-exposed surface of the filter member, the inner surface of the cover member, and the inside of each of the filter member and the cover member are relatively difficult to dry.
Even on the exposed surface of the filter member or the outer surface of the cover member, a directly supplied water portion (for example, a flooded portion or a flooded portion) is relatively difficult to dry.
On the other hand, the outer surface of the cover member that is not directly supplied with water is relatively easy to dry.
The scale is easily deposited at a place where it is easy to dry, and is difficult to deposit at a place where it is difficult to dry. Therefore, the scale is likely to deposit on the outer surface of the cover member.

The cover member is detachable. Therefore, if the cover member with the scale attached is removed from the filter member and a new cover member without the scale attached is attached to the filter member, the attached scale can be removed from the filter, or the entire filter with the scale attached can be removed. A filter with no scale attached can be obtained without replacing the filter.
Note that the exposed surface of the filter member that is not directly supplied with water may be, for example, the leeward surface that is more difficult to dry than the windward surface. Alternatively, all surfaces of the filter member that are not directly supplied with water may be covered with the cover member.

  In the present invention, the cover member absorbs water more easily than the filter member. For this reason, the water containing impurities easily moves from the filter member to the cover member having higher water absorption. Therefore, the scale is more likely to be deposited on the cover member.

  In the present invention, water can pass through the cover member more easily than the filter member. For this reason, the water containing impurities easily moves from the filter member to the cover member having higher water permeability. Therefore, the scale is more likely to be deposited on the cover member.

  In the present invention, the cover member dries faster than the filter member. Therefore, the scale is more likely to be deposited on the cover member.

  In the present invention, capillarity easily occurs in a cover member using a net-like body, a solid knitted fabric, or a corrugated structure. For this reason, the water absorbed by the cover member is likely to diffuse throughout the cover member. Therefore, the cover member is easier to dry than the case where the capillarity is less likely to occur. Therefore, the scale is more likely to be deposited on the cover member.

  In the present invention, a cover member made of cotton or rayon generally has high water absorption. For this reason, the water containing impurities easily moves from the filter member to the cover member having high water absorption. Therefore, the scale is more likely to be deposited on the cover member.

In the present invention, the filter includes a filter member having water absorption and air permeability, and a cover member having water absorption and air permeability.
The cover member is laminated on the filter member. The air that has passed through the absorbed cover member and filter member in this order, or in the reverse order, absorbs moisture.
In this specification, the direction in which the filter member and the cover member are stacked is referred to as a stacking direction.

The thickness of the cover member is smaller than the thickness of the filter member. Therefore, the cover member is easier to dry than when the cover member has a thickness equal to or greater than the thickness of the filter member. In addition, when the scale is attached, the running cost of the humidifier is reduced by replacing the thin cover member rather than replacing the thick filter member.
The humidifier according to the present invention includes such a filter, a blower, a ventilation path, and a water supply unit.
In this specification, the upstream side in the ventilation direction of the air flowing through the ventilation path is referred to as the windward side, and the downstream side in the ventilation direction is referred to as the leeward side.

When the blower blows, the air sucked into the ventilation path through the suction port passes through the filter member and the cover member in the reverse order, and then blows out to the outside through the air outlet. As a result, the outside of the apparatus is humidified.
The cover member is disposed on the windward side of the filter member. Therefore, the cover member is easier to dry than the case where it is arranged on the leeward side.

The scale easily deposits on the cover member that is easy to dry. As a result, the scale adheres intensively to the cover member. Since the cover member is detachably laminated on the filter member, the water absorption and breathability of the filter can be maintained by replacing the cover member. Therefore, the humidification performance of the humidifier can be maintained.
Furthermore, the cover member contributes to the humidification performance of the humidifier together with the filter member. That is, it is not necessary to add a new member to the filter or the humidifier only to improve the maintainability of the filter and reduce the running cost of the humidifier.

  In the present invention, the projected area of the cover member in the stacking direction (hereinafter simply referred to as the projected area) is smaller than the projected area of the filter member. That is, a part of the wind surface of the filter member is covered with the cover member, but the remaining part is not covered with the cover member. For this reason, compared with the part covered with the cover member, the remainder which is not covered with the cover member has high air permeability. Therefore, the pressure loss of the filter according to the present invention is smaller than when the projected area of the cover member is equal to or larger than the projected area of the filter member, that is, when the entire wind surface of the filter member is covered with the cover member.

  A filter with a small pressure loss can improve the air flow efficiency in the ventilation path, and hence the humidification efficiency of the humidifier.

  In the present invention, the filter member has a disk shape with a large radius, and the cover member has a disk shape with a small radius. Such a filter is suitable for a humidifier configured to absorb water throughout the filter by continuously rotating the filter in the circumferential direction.

In the present invention, the water to be absorbed by the filter is supplied directly to at least a part of the filter member. At this time, even if the water is not supplied directly to all of the filter members, if the absorbed water diffuses, the filter members absorb water as a whole.
Further, the cover member is not directly supplied with water, but can absorb water from the absorbed filter member.
As a result, since the filter member and the cover member absorb water, the air passing through the filter absorbs moisture.

  Furthermore, the cover member that is not directly supplied with water is easier to dry than the case of supplying water directly. For this reason, a scale adheres to a cover member more intensively. Since the cover member detachably covers the filter member, the water absorption and breathability of the filter can be maintained by replacing the cover member. Therefore, the humidification performance of the humidifier can be maintained.

In this invention, the water supply part with which a humidifier is provided uses a water tank.
A part of the filter member can be submerged in a water tank. When some of them are submerged, some of the filter members directly absorb the water stored in the water tank. That is, a part of the filter member is directly supplied with water by the water supply unit.
On the other hand, the cover member cannot be submerged in the water tank. For this reason, the cover member absorbs water from the absorbed filter member.

There is no possibility that the scale deposited on the cover member that cannot be submerged will be eluted into the water stored in the water tank.
Further, a cover member that cannot be submerged is easier to dry than a cover member that can be submerged.

  In the case of the filter and the humidifier according to the present invention, the cover member covers the filter member so as to be detachable. Therefore, if the cover member to which the scale is attached is replaced with a new cover member, the water absorption and air permeability of the filter can be maintained. it can. Therefore, the humidification performance of the humidifier can be maintained.

  Moreover, since it is not necessary to replace both the filter member and the cover member, or the entire filter, the running cost of the humidifier can be reduced. Furthermore, since it is not necessary to remove the scale from the filter, the maintainability of the filter can be improved.

It is a disassembled perspective view which shows the external appearance of the humidification apparatus which concerns on Embodiment 1 of this invention. It is a sectional side view showing the schematic structure of a humidifier. It is a disassembled perspective view which shows schematic structure of the humidification filter as a filter which concerns on Embodiment 1 of this invention. It is a rear view (waterproof state) which briefly shows the support structure of the humidification filter with which a humidification device is provided. It is a rear view (inflow state) which shows the support structure of the humidification filter with which a humidification device is provided. It is a rear view which shows schematic structure of the humidification filter as a filter concerning Embodiment 2 of this invention. It is a perspective view which shows schematic structure of the humidification filter as a filter concerning Embodiment 3 of this invention.

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

Embodiment 1.
FIG. 1 is an exploded perspective view showing an appearance of a humidifying device 1 according to Embodiment 1 of the present invention.
FIG. 2 is a side sectional view showing a schematic configuration of the humidifying device 1. The left side and the right side of FIG. 2 are the front side and the back side of the humidifier 1, and FIG. 1 is a perspective view as seen from the back side of the humidifier 1 (that is, the right side of FIG. 2). Hereinafter, the near side and the far side in the direction perpendicular to the paper surface of FIG. 2 are referred to as the left side and the right side of the humidifier 1.

FIG. 1 shows a state in which a rear panel 10, an air purification unit 11, a water tank 12, a humidification filter 2, and a water supply tank 15, which will be described later, are removed from their respective predetermined positions. It shows a state of being attached at a predetermined position. However, the water supply tank 15 is not shown in FIG.
The humidifying device 1 of the present embodiment has an air humidifying function and an air cleaning function by deodorization and dust collection.

The humidifier 1 includes a casing 6 having a vertical rectangular parallelepiped shape. The housing 6 includes a front cover 61, a top cover 62, a rear cover 63, and the like.
The humidifier 1 is placed on a floor in a room having a floor and two opposing walls (not shown) and the like, with the rear cover 63 of the housing 6 facing one wall.
The housing 6 is provided with an air passage 3 and a water supply space 60 for realizing an air humidification function and an air purification function by deodorization and dust collection.

  With respect to the front-rear direction of the housing 6, the ventilation path 3 is generally located from the rear part to the front part of the housing 6. The ventilation path 3 is generally located from the right side of the housing 6 to the center in the left-right direction with respect to the left-right direction of the housing 6, and the water supply space 60 is generally located on the left side of the housing 6. The ventilation path 3 and the water supply space 60 communicate with each other through a rectangular midway opening 33 provided in the middle of the ventilation path 3. However, the midway opening 33 is closed by the water tank 12 and a partition plate (not shown) provided in the water tank 12 when the water tank 12 is attached to a predetermined position of the housing 6. For this reason, air does not flow between the ventilation path 3 and the water supply space 60 during use of the humidifier 1.

The water tank 12 has a tray shape that is long in the lateral direction with the top opened. The water tank 12 includes a first tray 121 and a second tray 122, and the first tray 121 and the second tray 122 communicate with each other through a water passage hole (not shown). When water of a water level L, which will be described later, is stored in the water tank 12, this water passage hole is always submerged.
The first tray 121 is shorter in the front-rear direction and longer in the left-right direction than the second tray 122. The water tank 12 is detachably disposed at a predetermined position of the housing 6 so that the longitudinal direction of the water tank 12 coincides with the left-right direction of the humidifying device 1. At this time, the first tray 121 is disposed in the ventilation path 3, and the second tray 122 is disposed in the water supply space 60.
Water tank 12 constitutes a water supply unit in the embodiment of the present invention.

Here, the water supply space 60 will be described.
The water supply space 60 is a recess formed on the left side of the housing 6.
The water supply tank 15 is a rectangular parallelepiped container having a water tap 151 at one end in the longitudinal direction. The water supply tank 15 is detachably arranged in the water supply space 60 in an inverted posture with the water supply tap 151 side of the water supply tank 15 facing downward. At this time, the water tap 151 side of the water supply tank 15 is attached to the second tray 122 of the water tank 12.

  The water tap 151 incorporates a known constant water level valve (not shown). When the water supply tank 15 is mounted on the second tray 122, the constant water level valve is pushed up by a push-up protrusion (not shown) standing on the bottom wall of the second tray 122 to be in an open state. As a result, the water stored in the water supply tank 15 is supplied to the second tray 122. The water supplied to the second tray 122 is supplied to the first tray 121 through the water passage hole described above. At this time, water of a constant water level L is stored in the water tank 12 by the action of the constant water level valve.

Next, the ventilation path 3 and each part distribute | arranged to the ventilation path 3 are demonstrated.
The ventilation path 3 includes a filter housing portion 301 and a blowout air path 302 that are in communication with each other. Further, the ventilation path 3 is provided with a suction port 31, a blowout port 32, and a midway opening 33.
The suction port 31 opens in the rear cover 63 of the housing 6, and the outside of the humidifying device 1 and the filter housing portion 301 communicate with each other through the suction port 31.

The rear panel 10 is attached to the housing 6 so as to close the suction port 31. More specifically, the rear panel 10 is provided with elastic claws, and the rear panel 10 is detachable by engaging the claws with the claw receptacle provided on the housing 6. It is attached to the housing 6.
However, the rear panel 10 is formed with a plurality of vent holes 100, 100,. For this reason, the air flowing through the suction port 31 is air flowing through the vent holes 100, 100,. The air holes 100, 100,... Are closed by a prefilter (not shown), and this prefilter collects and removes coarse dust contained in the air flowing into the filter housing portion 301 via the suction port 31. To do.

The air outlet 32 opens in the top cover 62 of the housing 6, and the air outlet 302 communicates with the outside of the humidifier 1 through the air outlet 32.
When the blower 13 described later blows air, the air outside the humidifier 1 is sucked into the ventilation path 3 through the suction port 31. The sucked air flows through the filter housing portion 301 and the blowout air passage 302 in this order, and then blows out to the outside of the humidifier 1 through the blowout port 32. That is, the suction port 31 is located on the windward side (upstream side in the direction of ventilation of the air flowing through the ventilation path 3), and the air outlet 32 is located on the leeward side.

  An air purification chamber is provided in the vicinity of the suction port 31 of the filter housing portion 301 (more specifically, the front side of the rear panel 10), and the air purification portion 11 is detachably accommodated in the air purification chamber. . The air that has flowed into the filter housing portion 301 through the suction port 31 passes through the air purification portion 11.

  The air purification unit 11 includes a dust collection filter 111 and a deodorization filter 112. The dust collection filter 111 is, for example, a known HEPA (High Efficiency Particulate Air) filter, and collects and removes fine dust and pollen contained in the air passing through the dust collection filter 111. The deodorizing filter 112 is made by, for example, dispersing and holding activated carbon in a nonwoven fabric, and adsorbs and removes odorous components in the air passing through the deodorizing filter 112. Therefore, the air that has passed through the air purification unit 11 is purified.

  During maintenance or replacement of the air purification unit 11, if the rear panel 10 is removed from the housing 6, the air purification unit 11 is taken out from the air purification chamber via the suction port 31 and is stored in the air purification chamber. Is possible.

  A humidifying chamber is provided in the filter housing portion 301 between the air purification unit 11 and the blower 13, and the first tray 121 of the water tank 12, the humidifying filter 2, and a rotation drive mechanism 16 described later are provided in the humidifying chamber. To position. A midway opening 33 is formed in the partition wall 64 that separates the humidification chamber and the water supply space 60. That is, the midway opening 33 is located upstream of the blower 13 in the ventilation direction.

  The water tank 12 is placed on the bottom of the housing 6. For this purpose, the first tray 121 of the water tank 12 is pushed into the inside of the ventilation path 3 (specifically, the humidification chamber of the filter housing portion 301) in the right direction through the midway opening 33 together with the humidification filter 2. At this time, the second tray 122 is disposed in the water supply space 60. Further, the first tray 121 is pulled out from the humidification chamber of the filter housing portion 301 to the left through the midway opening 33 together with the humidification filter 2.

FIG. 3 is an exploded perspective view showing a schematic configuration of the humidifying filter 2 as a filter according to Embodiment 1 of the present invention.
4 and 5 are rear views schematically showing the support structure of the humidifying filter 2, and the first tray 121 of the water tank 12 is cut away. However, FIG. 5 shows an inflow state in which water flows into the interior of each holding container 20 to be described later through a through hole 241, and FIG. 4 shows waterproofing in which the inflow of water into the holding container 20 is prevented. Indicates the state.
As shown in FIGS. 1 to 5, the humidifying filter 2 includes a filter member 21 and a cover member 22, a holding frame 23, and a holding frame cover 24.

The holding frame cover 24 has a disk shape. The holding frame cover 24 is formed with a through hole 241, a reinforcing part 242, and a waterproof part 243.
The through hole 241 has a D shape. However, the through-hole 241 is divided into a plurality (seven in the figure) by the reinforcing portion 242. The shape, size, and the like of each of the through hole 241 and the reinforcing portion 242 are further described below so as to maintain the strength of the holding container 20 and not to block the flow of water and air to the inside and outside of the holding container 20. Thus, the reinforcing portion 242 is appropriately designed so as to hold the cover member 22 between the filter member 21 and the filter member 21 in a balanced manner.

  The holding frame cover 24 is provided with a region where the through hole 241 and the reinforcing portion 242 are disposed and a waterproof portion 243 adjacent to each other in the circumferential direction. The shape and dimensions of the waterproof part 243 are appropriately set so as to prevent the inflow of water into the holding container 20 as will be described later.

  The holding frame 23 has a bottomed cylindrical shape. The holding frame 23 is formed with a through hole, a reinforcing portion, and a waterproof portion. The positions, shapes, dimensions, and the like of the through holes, the reinforcing portions, and the waterproof portions formed in the holding frame 23 are the positions of the through holes 241, the reinforcing portions 242, and the waterproof portions 243 formed in the holding frame cover 24. , Shape and dimensions. Hereinafter, the through hole and the waterproof part formed in the holding frame 23 are also referred to as the through hole 241 and the waterproof part 243.

  The holding frame cover 24 is attached to the holding frame 23 so as to close the opening side of the bottomed cylinder of the holding frame 23. More specifically, an engaging portion (not shown) having elasticity is provided on the peripheral portion of the holding frame cover 24, and this engaging portion is an engaging receiver (not shown) provided on the peripheral wall of the holding frame 23. The holding frame cover 24 is detachably attached to the holding frame 23 by engaging the portion. As a result, the holding frame 23 and the holding frame cover 24 constitute a hollow disc-shaped holding container 20 provided with through holes 241 and 241 on both sides. The inside and outside of the holding container 20 communicate with each other through the through holes 241 and 241.

The holding container 20 accommodates and holds the filter member 21 and the cover member 22. However, if the holding frame cover 24 is removed from the holding frame 23, the filter member 21 and the cover member 22 can be taken out from the holding container 20 and accommodated in the holding container 20. The internal method in the thickness direction of the holding container 20 is approximately the same as the thickness of the filter member 21.
Each of the filter member 21 and the cover member 22 is made of a material having water absorbability and air permeability. Specifically, the cover member 22 is made of a cotton fiber net. The filter member 21 is made of a nonwoven fabric of rayon and PET (polyethylene terephthalate) fibers.

The filter member 21 has a D-cut disk shape formed by folding a sheet-like nonwoven fabric into a bellows shape. The thickness of the filter member 21 is about 30 mm.
The cover member 22 has a disk shape. The cover member 22 has a thickness of about 1 mm. Since the cover member 22 is a cotton product and uses a net-like body, both the water absorption and the quick drying properties are higher than those of the filter member 21.

The cover member 22 is concentrically laminated on one surface of the filter member 21 so as to be detachable.
However, when the cover member 22 and the filter member 21 are laminated, the water absorbed by the filter member 21 can be easily absorbed by the cover member 22 laminated on the filter member 21. Are closely arranged. Specifically, the cover member 22 is sandwiched between the filter member 21 and the reinforcing portion 242 of the holding frame cover 24.
Hereinafter, the lamination direction means the direction in which the filter member 21 and the cover member 22 are laminated, and does not mean the direction in which the nonwoven fabrics constituting the filter member 21 are laminated.

  The radii of the filter member 21 and the cover member 22 are set based on the positional relationship with the water level L and support rollers 123 and 123, which will be described later. This is because, as will be described later, when the cover member 22 is always located on the water surface, and the holding container 20 is in a submerged state, the lower part of the filter member 21 is located below the water surface, and the holding container 20 is in a non-submerged state. This is because it is necessary to configure so that the filter member 21 is positioned on the water surface.

The radius of the cover member 22 is shorter than the minimum radius of the filter member 21. In other words, the projected area of the cover member 22 in the stacking direction is smaller than the projected area of the filter member 21 in the stacking direction. For this reason, by laminating the cover member 22, the radial center of one surface of the filter member 21 is covered by the cover member 22, but the peripheral portion of the one surface of the filter member 21 is not covered by the cover member 22. That is, the peripheral edge of one surface of the filter member 21 is an area where the filter member 21 is exposed.
The cover member 22 is not attached to the other surface of the filter member 21. That is, the other surface of the filter member 21 is a region where the filter member 21 is exposed entirely.

  Each of the filter member 21 and the cover member 22 is not limited to the configuration of the present embodiment. For example, the cover member 22 may be formed using a three-dimensional knitted fabric or a corrugated structure, or may be formed using rayon. Further, the cover member 22 may have a quick drying property by forming a hole in the filter cloth. Alternatively, the cover member 22 may be formed by coating a filter cloth made of PET with a hydrophilic substance to increase water absorption. Even in the above case, the cover member 22 has higher water absorption and quick drying properties than the filter member 21.

  Further, the filter member 21 may be one using a three-dimensional knitted fabric, or may be a laminate of a plurality of sheets. However, a sheet folded in a bellows shape has an advantage that a contact area with air passing through the sheet is larger than a sheet that is not folded at all.

  Even if it is a fiber body containing cotton or rayon, a fiber body having a high density like felt fabric is not suitable for the cover member 22 because it has a low quick-drying property. If such a cover member 22 is used, it is difficult for the cover member 22 to dry, so that the scale is intensively deposited on the cover member 22 (described later).

  Further, the outer edge shape of the cover member 22 and the outer edge shape of the filter member 21 may be the same size. In this case, in order to make the projected area of the cover member 22 in the stacking direction smaller than the projected area of the filter member 21 in the stacking direction, a through hole may be formed in the cover member 22. At this time, the formation position of the through hole in the cover member 22 is a region where the filter member 21 is exposed.

The water absorption, quick drying, and water permeability of the cover member 22 are all higher than the water absorption, quick drying, and water permeability of the filter member 21.
Here, the inventors measured water absorption based on the water absorption dropping method of JIS L1907. In this water-absorbing dripping method, a test piece is attached to a holding frame, one drop of water is dropped from a height of 10 mm above the test piece, and the specular reflection of water completely disappears after the water drop reaches the test piece. Time is measured. The shorter this time, the higher the water absorption. As a guide, if it is less than 60 seconds for a woven fabric and less than 12 seconds for a knitted fabric (knit), it is said that there is water absorption.

  According to the measurement based on the water-absorbing dripping method of JIS L1907, the material (that is, cotton material) constituting the cover member 22 absorbed water in about 0.8 seconds. On the other hand, the material constituting the filter member 21 absorbed water in about 8 seconds. That is, both the filter member 21 and the cover member 22 have water absorption, but the cover member 22 has higher water absorption than the filter member 21. Since the rayon material absorbs water in about 1.2 seconds, the cover member 22 has higher water absorption than the filter member 21 even when the cover member 22 is made of rayon material instead of the cotton material.

Next, quick drying will be described.
Quick-drying is the property that moisture-containing dough dries quickly. In order to measure the quick-drying property, the inventors dropped water at a certain ratio (specifically, 30% by weight) on the weight of the dough and dropped it on the dough for a predetermined time (specifically, 10 minutes). ) The water evaporation rate (%) after hanging and drying was measured. The inventors have determined that the higher the moisture evaporation rate, the quicker the drying.

  In the present embodiment, the quick drying properties of the filter member 21 and the cover member 22 are not measured in the state of the material constituting the filter member 21 and the cover member 22, but are formed as the filter member 21 and the cover member 22. Measured in the measured state. This is because the cover member 22 is faster than the filter member 21 even if the material constituting the cover member 22 has a faster drying property than the material constituting the filter member 21. It is because it may have dryness.

  The reason why the cover member 22 is faster drying than the filter member 21 is mainly that the cover member 22 is thinner than the filter member 21, and the cover member 22 is a nonwoven fabric constituting the filter member 21. This is because a net-like body having more gaps is used.

Next, water permeability will be described.
The material constituting the cover member 22 is a material having a larger water permeability coefficient than the material constituting the filter member 21. The inventors measured the water permeability based on JIS A1218. A material having a large permeability coefficient is more likely to transmit water than a material having a small permeability coefficient (water flows easily through the material). Therefore, the cover member 22 has higher water permeability than the filter member 21.

Next, a support structure for the humidifying filter 2 will be described.
On the bottom wall of the first tray 121, two support rollers 123, 123 are provided so as to be distributed on both sides in the left-right direction. When the water tank 12 is attached to the predetermined position of the housing | casing 6, the rotating shaft of each support roller 123 is distribute | arranged to the front-back direction.

  When the humidifying filter 2 is set in the water tank 12, the lower portion of the humidifying filter 2 is inserted into the first tray 121 and is detachably mounted on the support rollers 123 and 123. At this time, the rotation shaft of the humidification filter 2 is arranged in the same direction as the rotation shaft of each support roller 123, and the support rollers 123 and 123 are brought into rolling contact with the lower outer peripheral surface of the holding container 20 at each position. As a result, the humidification filter 2 is supported on the upper side of the water tank 12 so as to be rotatable in the circumferential direction in a vertical posture.

  The humidifying filter 2 placed on the support rollers 123 and 123 can be easily detached from the first tray 121 by lifting upward. Such attachment / detachment of the humidifying filter 2 is performed for maintenance or replacement of the humidifying filter 2, cleaning of the water tank 12, or the like.

  By the way, when setting the humidification filter 2 in the water tank 12, when the water tank 12 is attached to the predetermined position of the housing | casing 6, the humidification filter 2 is distribute | arranged to the attitude | position in which the cover member 22 faces the inlet 31 side. That is, when the water tank 12 is attached to a predetermined position of the housing 6, the stacking direction of the filter member 21 and the cover member 22 is the same as the direction of the air flowing through the ventilation path 3. Further, the cover member 22 is disposed so as to be located on the windward side of the filter member 21.

The rotational drive mechanism 16 includes a drive motor 161 and a drive roller 162. The drive motor 161 is fixed inside the housing 6. The driving roller 162 rotates when the rotation of the driving motor 161 is transmitted.
When the water tank 12 in which the humidifying filter 2 is set is attached to a predetermined position of the housing 6, the humidifying filter 2 is disposed below the drive roller 162. At this time, the driving roller 162 is in rolling contact with the upper outer peripheral surface of the holding container 20 of the humidifying filter 2. As a result, the humidifying filter 2 is supported at three points at the positions of the support rollers 123 and 123 and the drive roller 162, that is, at different positions in the circumferential direction.

  Therefore, the humidifying filter 2 does not need to be provided with a pivot shaft that is rotatably supported at the center. For this reason, through holes 241 and 241 can be provided on substantially the entire surface excluding the waterproof parts 243 and 243 on both front and rear surfaces of the holding container 20. As a result, a large amount of air passes through the filter member 21 and the cover member 22 accommodated and held in the holding container 20 without being blocked by the holding container 20. That is, the humidification performance can be improved.

  When the drive motor 161 is driven, the rotation of the drive roller 162 is transmitted to the holding container 20. At this time, the humidifying filter 2 rotates around the center of the holding container 20 (that is, in the circumferential direction of the humidifying filter 2). 4 and 5 show a case where the humidifying filter 2 is rotating in the direction of the arrow (that is, clockwise).

As described above, the water at the water level L is stored in the first tray 121. For this reason, the outer part of the circumferential direction of the holding container 20 (specifically, the lower part) among the members constituting the humidifying filter 2 is always immersed in the water stored in the water tank 12.
As shown in FIG. 5, when the region where the through hole 241 and the reinforcing portion 242 of the holding container 20 are submerged, the inside of the lower part of the holding container 20 is submerged through the lower part of the through holes 241 and 241. . Hereinafter, this state is referred to as a flooded state.
On the other hand, as shown in FIG. 4, when the waterproof parts 243 and 243 of the holding container 20 are submerged, the inside of the lower part of the holding container 20 is not submerged. This state is hereinafter referred to as a non-immersed state.

When the holding container 20 is in a flooded state, the lower part of the filter member 21 is located below the water surface of the water tank 12. For this reason, the lower part of the filter member 21 is immersed in water that has entered the inside of the lower part of the holding container 20, that is, water stored in the water tank 12.
However, when the holding container 20 is in a non-immersed state, the filter member 21 is not immersed in the water stored in the water tank 12. This is because in this case, the inside of the lower part of the holding container 20 is not submerged, and the filter member 21 is located on the water surface.

On the other hand, the cover member 22 is not immersed in the water stored in the water tank 12 regardless of whether the holding container 20 is in a submerged state or a non-submerged state. This is because the cover member 22 is always located on the water surface.
As the humidifying filter 2 rotates, the flooded state and the non-flooded state are switched alternately.

  When the holding container 20 is in a flooded state, the water stored in the water tank 12 is absorbed by the peripheral portion of the filter member 21 as the humidifying filter 2 rotates, and further sucked up from the peripheral portion to the central portion in the radial direction. It is done. Since the humidification filter 2 is continuously rotated, the peripheral edge of the filter member 21 is continuously immersed and absorbed in the circumferential direction, and the absorbed water is lifted by rotating. However, when the holding container 20 is in a non-water-immersed state, even if the humidification filter 2 is rotated, the filter member 21 is not submerged or absorbed. However, the period in which the holding container 20 is in a submerged state while the humidifying filter 2 rotates once is sufficiently longer than the period in which the holding container 20 is in a non-submerged state. For this reason, if the humidification filter 2 continues rotating, water will spread efficiently over the entire filter member 21.

When the central portion in the radial direction of the filter member 21 absorbs water, the cover member 22 absorbs water from the filter member 21 through a portion that is in close contact with the filter member 21. The filter member 21 absorbed by the cover member 22 newly absorbs water accordingly.
As described above, the filter member 21 is directly supplied with water from the water tank 12, but the cover member 22 is indirectly supplied with water from the water tank 12 through the filter member 21.

  The air that has passed through the air purification unit 11 then passes through the humidifying filter 2. More specifically, the air that has passed through the air purification unit 11 passes through the filter member 21 and the cover member 22 in the reverse order, or passes through the filter member 21.

  When the humidifying filter 2 is rotating, the air that has passed through the humidifying filter 2 sufficiently absorbs moisture. On the other hand, when the humidifying filter 2 is not rotating and the holding container 20 is in a non-immersed state, the air that has passed through the humidifying filter 2 hardly absorbs moisture. Accordingly, when both air cleaning and air humidification are performed, the rotation drive mechanism 16 is operated to rotate the humidification filter 2, but when air humidification is not performed only by air cleaning, the rotation drive mechanism 16 is not operated. The humidifying filter 2 stops at a position where the holding container 20 is in a non-water-immersed state. Below, the case where both air purification and air humidification are performed is demonstrated.

As shown in FIG. 2, the blower 13 is disposed at the boundary portion between the filter housing portion 301 and the blowout air passage 302.
The blower 13 uses a sirocco fan (multi-blade impeller), and includes an electric fan motor 131 and a fan 132.
The fan motor 131 is fixed inside the housing 6 by a support portion (not shown). The fan 132 is fixed to the output shaft of the fan motor 131. The fan 132 is rotated by driving of the fan motor 131, and air is blown by the rotation of the fan 132.

In the filter housing portion 301, air flows substantially horizontally from the rear side to the front side, and in the blowout air passage 302, air flows at an angle of about 20 ° from the front lower side to the rear upper side.
The blower outlet 32 is provided with a louver (not shown). The inner peripheral surface of the blowout air passage 302 and the louver regulate the direction in which the air flows so that the air blown out through the blowout port 32 is likely to rise along the indoor wall.

Regarding the ventilation path 3 as described above, air flows as shown by arrows in FIG.
More specifically, air is sucked into the filter housing portion 301 from the room through the suction port 31. The sucked air flows forward through the filter housing portion 301. At this time, the sucked air is purified and humidified by passing through the air purifying unit 11 and the humidifying filter 2 in this order. Hereinafter, the air purified and humidified by the air purification unit 11 and the humidifying filter 2 is referred to as purified humidified air.

Next, the purified humidified air flows from the filter housing portion 301 to the blowout air passage 302. In the blowout air passage 302, the purified humidified air flows in the rear upper direction, and finally blows out into the room through the blowout port 32.
The purified humidified air blown into the room is blown onto one wall, further rises along one wall, then moves along the ceiling to another wall opposite the one wall, and further along the other wall. After moving down, move to a wall along the floor. That is, the purified humidified air circulates throughout the room.

Next, the function and effect of the humidifier 1 will be described.
The conventional humidifier as described in Patent Document 2 suppresses the precipitation of scale, but the humidifier 1 positively deposits the scale. However, the humidifier 1 is configured such that the scale is concentrated on the cover member 22 by laminating the cover member 22 on the filter member 21.

Here, precipitation of scale in the humidifier 1 will be described.
The inventors conducted an experiment to visually confirm whether the filter member 21 and the cover member 22 are adhered to the scale after the humidifying device 1 is humidified for five days continuously while supplying tap water to the water tank 12. Was done. At this time, 30 liters of tap water was consumed. In addition, the inventors conducted a control experiment on a humidifying device having the same configuration as the humidifying device 1 except that the humidifying filter 2 does not include the cover member 22.
As a result, it was found that the scale was deposited on the filter member 21 for the humidifier of the control experiment.

On the other hand, with respect to the humidifying device 1, it was found that the scale was deposited on the cover member 22, but the scale was hardly deposited on the filter member 21.
The reason for this is considered to be that in the humidifier 1, the cover member 22 promotes the precipitation of scale and the filter member 21 suppresses the precipitation of scale. The cover member 22 promotes the precipitation of scale, and the filter member 21 suppresses the precipitation of scale.

  First, the cover member 22 is located on the windward side and is not directly supplied with water, so it is easy to dry. Secondly, the filter member 21 is located on the leeward side and directly supplied with water, so that it is difficult to dry. Thirdly, the cover member 22 having a small thickness and using a net-like body has a quicker drying property than the filter member 21 having a large thickness and using a nonwoven fabric. Fourth, since the material constituting the cover member 22 has higher water absorption and water permeability than the material constituting the filter member 21, the water absorbed by the filter member 21 moves to the cover member 22. This is because it is easy to do.

  Replacement of the cover member 22 is easy. On the other hand, it is difficult to remove the attached scale. Therefore, if the cover member 22 to which the scale is attached is replaced, it is possible to suppress the water absorption and air permeability of the humidifying filter 2 from being deteriorated with time due to the attachment of the scale. As a result, the humidification performance of the humidifier 1 is maintained in a high state. In addition, since the removal of the scale is unnecessary, the maintainability of the humidifying filter 2 is high. Furthermore, it is not necessary to replace the filter member 21, or it is not necessary to replace the filter member 21 as frequently as the filter member provided in the conventional humidifying filter. Therefore, the running cost of the humidifier 1 is reduced.

By the way, since the cover member 22 is not submerged, the scale deposited on the cover member 22 does not elute again into the water stored in the water tank 12.
Further, since the cover member 22 covers the radial center portion of the wind surface of the filter member 21 and does not cover the peripheral portion, the cover member 22 covers the entire wind surface of the filter member 21 than the case where the cover member 22 covers the entire wind surface. The pressure loss of the humidification filter 2 is reduced.

  Incidentally, the cover member 22 is disposed on the wind surface of the filter member 21 and is not disposed on the wind surface. However, the humidification filter 2 may have a configuration in which the cover members 22 are disposed on both surfaces of the filter member 21. However, since the leeward side is difficult to dry, it is considered that the scale is hardly deposited on the leeward side cover member 22. In other words, if the cover member 22 is disposed on the leeward side, it is not necessary to place the cover member 22 on the leeward side. Therefore, the humidification filter 2 of the present embodiment that does not include the leeward side cover member 22 is more advantageous in terms of manufacturing cost, pressure loss, and the like.

Embodiment 2. FIG.
The humidifying device 1 according to the present embodiment includes a humidifying filter 5 instead of the humidifying filter 2 according to the first embodiment. Although the humidification filter 2 is a rotary type, the humidification filter 5 is a stationary type. Therefore, the humidifier 1 does not include the support rollers 123 and 123 and the rotation drive mechanism 16. Further, the humidifying filter 2 has a disc shape, but the humidifying filter 5 has a rectangular disc shape.
Hereinafter, differences between the first and second embodiments will be described, and other parts corresponding to those of the first embodiment are denoted by the same reference numerals and description thereof will be omitted.

FIG. 6 is a rear view showing a schematic configuration of a humidifying filter 5 as a filter according to Embodiment 2 of the present invention. FIG. 6 shows the first tray 121 of the water tank 12 in a broken state.
The humidifying filter 5 shown in FIG. 6 includes a filter member 51 and a cover member 52, a holding frame (not shown), and a holding frame cover 54, and a holding container 50 is configured by the holding frame and the holding frame cover 54. The holding container 50, the filter member 51, the cover member 52, the holding frame, and the holding frame cover 54 correspond to the holding container 20, the filter member 21, the cover member 22, the holding frame 23, and the holding frame cover 24 of the first embodiment. To do. However, the holding container 50 is not provided with portions corresponding to the waterproof portions 243 and 243 of the first embodiment.

The holding frame cover 54 has a rectangular plate shape in which a rectangular through hole 541 is formed. However, the through hole 541 is divided into a plurality (seven in the figure) by the reinforcing portion 542.
The holding frame has a bottomed rectangular tube shape with a through hole formed at the bottom thereof. The positions, shapes, dimensions, etc. of the through holes and the reinforcing portions formed in the holding frame correspond to the positions, shapes, dimensions, etc. of the through holes 541, the reinforcing portions 542 formed in the holding frame cover 54. Yes. Hereinafter, the through hole formed in the holding frame is also referred to as a through hole 541.

The filter member 51 has a rectangular disk shape formed by folding a sheet-like nonwoven fabric into a bellows shape. The thickness of the filter member 51 is about 30 mm.
The cover member 52 has a rectangular sheet shape with a thickness of about 1 mm.
The cover member 52 is detachably stacked on one surface (more specifically, the wind surface) of the filter member 51.
However, when the cover member 52 and the filter member 51 are stacked, both the water absorbed by the filter member 51 can be easily absorbed by the cover member 52 stacked on the filter member 51. Are closely arranged. Specifically, the cover member 52 is sandwiched between the filter member 51 and the reinforcing portion 242 of the holding frame cover 24.

The vertical and horizontal dimensions of the cover member 52 are shorter than the vertical and horizontal dimensions of the filter member 51. In other words, the projected area of the cover member 52 in the stacking direction is smaller than the projected area of the filter member 51 in the stacking direction.
The cover member 52 covers the wind surface of the filter member 51 from the upper part to the center in the vertical direction, but does not cover the lower part of the wind surface of the filter member 51.

Such a humidification filter 2 is placed on the bottom surface of the first tray 121 of the water tank 12 in a vertical posture. When water of the water level L is stored in the water tank 12, the cover member 52 is always located on the water surface, and the lower part of the filter member 51 is always located below the water surface.
Water absorbed from the lower part of the filter member 51 is diffused throughout the filter member 51 by capillary action. When the central portion and the upper portion of the filter member 51 absorb water due to the diffusion of water, the cover member 52 absorbs water from the filter member 51 through a portion in close contact with the filter member 51.

  By the way, when setting the humidification filter 5 in the water tank 12, when the water tank 12 is attached to the predetermined position of the housing | casing 6, the humidification filter 5 is distribute | arranged to the attitude | position which the cover member 52 faces the inlet 31 side. That is, when the water tank 12 is attached to a predetermined position of the housing 6, the stacking direction of the filter member 51 and the cover member 52 is the same as the direction of the air flowing through the ventilation path 3. Further, the cover member 52 is disposed so as to be located on the windward side of the filter member 51.

  In the humidifier 1 as described above, the cover member 52 is laminated on the filter member 51 so that the scale is concentrated on the cover member 52. For this reason, the humidifier 1 of Embodiment 2 also has the same effect as the humidifier 1 of Embodiment 1.

Embodiment 3. FIG.
FIG. 7 is a perspective view showing a schematic configuration of a humidifying filter 5 as a filter according to Embodiment 3 of the present invention.
The humidifying filter 5 of the present embodiment has substantially the same configuration as the humidifying filter 5 of the second embodiment. However, the humidifying filter 5 of the present embodiment includes a cover member 55 and a holding frame 530 instead of the cover member 52 and the holding frame of the second embodiment.
Hereinafter, differences between the second and third embodiments will be described, and other parts corresponding to those of the second embodiment are denoted by the same reference numerals, and description thereof will be omitted.

  The holding frame according to the second embodiment has a bottomed rectangular tube shape with a through hole formed at the bottom thereof, but the holding frame 530 according to the present embodiment has an upper surface and a lower surface removed from the holding frame. It is U-shaped in plan view. For this reason, when the cover member 55 does not exist, the upper end surface of the filter member 51 is easily dried next to the wind surface.

The cover member 55 is formed by bending a rectangular sheet into an L shape, thereby providing an upwind surface laminated portion 551 that is one side of the L shape and an upper end surface covering portion 552 that is the other side of the L shape.
The wind surface laminate portion 551 of the cover member 52 is detachably laminated on the wind surface of the filter member 51, and the upper end surface covering portion 552 covers the upper end surface of the filter member 51 so as to be detachable.
In such a configuration, the scale is concentrated on the wind surface laminated portion 551 and the upper end surface covering portion 552 of the cover member 52. For this reason, the humidifier 1 of Embodiment 3 also has the same effect as the humidifier 1 of Embodiments 1 and 2.

The humidifying filters 2 and 5 as described above function as filters in the embodiment of the present invention.
In addition, the filter in embodiment of this invention is not limited to the structure with which a humidifier is equipped. For example, the filter in the embodiment of the present invention may be provided in an air conditioner as described in Patent Document 3.

  Moreover, in Embodiment 1-3, although the case where the water supply part in embodiment of this invention uses the water tank 12 was illustrated, it is not limited to this. For example, the water supply unit may include a water tank, a water wheel, and a rotation drive mechanism, and the water wheel may be watered to the humidification filter. A plurality of recesses are arranged side by side in the peripheral portion of the water wheel, and the rotation drive mechanism rotates the water wheel, whereby each recess draws water from the water tank, and the water stored in each recess is conveyed to the humidifying filter, And supplied. Moreover, the structure which a water supply part uses a water tank and a water supply pump may be sufficient. This water supply pump sucks up water from the water tank and supplies the sucked up water to the humidifying filter. In any case, it is desirable that the water wheel or the water supply pump supplies water directly to the filter member and does not supply water directly to the cover member.

Furthermore, in Embodiments 1 to 3, although the materials and structures of the cover member and the filter member are different, at least one of them may be the same.
The cover member may have a thickness greater than that of the filter member. However, from the viewpoint of running cost, ease of drying, and the like, the cover member that is replaced when the scale adheres is preferably thinner than the filter member as in the first to third embodiments.
Like the upper end surface covering portion 552 of the cover member 52, a portion of the cover member that is arranged along the ventilation direction or a cover member that is arranged along the ventilation direction is arranged so as to intersect the ventilation direction. The filter member may not have air permeability.

  Here, a case where the material and structure of the cover member and the filter member are the same will be described. In this case, for example, the laminate of the cover member and the filter member functions in the same manner as a conventional filter member having the same thickness as the laminate. Therefore, when the cover member covers the wind surface (or wind surface) of the filter member according to the present invention, the scale adheres to the cover member to the same extent as the wind surface (or wind surface) of the conventional filter member. If the cover member to which the scale is attached is removed, the scale is not attached to the wind surface (or wind surface) of the filter member according to the present invention. Therefore, if a new cover member is attached to the wind surface (or wind surface) of the filter member according to the present invention, a filter with no scale attached to the wind surface (or wind surface) can be obtained.

  Next, the case where the cover members 22 and 52 cover the windward surface without covering the windward surfaces of the filter members 21 and 51 will be described. In this case, many scales are present on the windward surface of the filter members 21 and 51 as compared with the windward surface of the filter members 21 and 51 when the cover members 22 and 52 cover the wind surface of the filter members 21 and 51. Adhere to. However, the cover members 22 and 52 have higher hygroscopicity and quick drying properties than the filter members 21 and 51. Therefore, the scale is likely to deposit on the cover members 22, 52, although not as much as when the cover members 22, 52 cover the wind surface of the filter members 21, 51. For this reason, compared with the case where the cover members 22 and 52 do not exist, the adhesion amount of the scale in the wind surface of the filter members 21 and 51 is reduced.

The embodiment disclosed this time is to be considered as illustrative in all points and not restrictive. The scope of the present invention is not intended to include the above-described meanings, but is intended to include meanings equivalent to the claims and all modifications within the scope of the claims.
In addition, as long as the effect of the present invention is obtained, the humidifier 1 or the humidifying filters 2 and 5 may include components that are not disclosed in the first to third embodiments.

1 Humidifier 12 Water tank (Water supply section)
13 Blower 2,5 Humidification filter (filter)
21, 51 Filter member 22, 52, 55 Cover member 3 Ventilation path 31 Suction port 32 Air outlet

Claims (12)

In a filter comprising a filter member having water absorption and breathability,
A cover member that has water absorbability, is capable of absorbing water from the filter member, and is detachable so as to cover at least a part of the filter member ,
The cover member has higher water absorption than the filter member,
Filter fabric constituting the cover member, in order to increase the water absorption of the filter cloth, filter, characterized that you have been coated with a material having hydrophilic. The filter according to claim 1, wherein the cover member has higher water permeability than the filter member. The cover member A filter according to claim 1 or 2, characterized in that it has a quick-drying than the filter member. The filter according to any one of claims 1 to 3 , wherein the cover member is a net-like body, a three-dimensional knitted fabric, or a corrugated structure. The filter according to any one of claims 1 to 4 , wherein the cover member is made of cotton or rayon. The cover member has air permeability and is laminated on the filter member,
The thickness of the lamination direction of the cover member, the filter according to any one of claims 1 to 5, characterized in that the smaller than the thickness of the lamination direction of the filter member. The filter according to claim 6 , wherein a projected area of the cover member in the stacking direction is smaller than a projected area of the filter member in the stacking direction. The filter member and the cover member each have a disk shape,
The filter according to claim 7 , wherein a radius of the cover member is smaller than a radius of the filter member. A filter according to any one of claims 1 to 8 ;
And a water supply unit for supplying water to the filter. The filter is a filter according to any one of claims 6 to 8 ,
A blower,
The air blower further includes a suction port for sucking air from the outside by the blower, and a ventilation path provided with a blower outlet for blowing the sucked air to the outside after passing through the filter. ,
The humidifying device according to claim 9 , wherein the filter is disposed so that the cover member is located upstream of the filter member in a ventilation direction of air flowing through the ventilation path. The water supply unit, humidifying apparatus according to claim 9 or 1 0, characterized in that you have to directly supply water to at least a portion of the filter member. The water supply unit uses a water tank,
The part of the filter member can be submerged in the water tank,
The humidifying device according to claim 11 , wherein the cover member is not allowed to be submerged in the water tank.

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